WO2018133154A1

WO2018133154A1 - Positioning device

Info

Publication number: WO2018133154A1
Application number: PCT/CN2017/074142
Authority: WO
Inventors: 蒋洪洲
Original assignee: 金华马卡科技有限公司
Priority date: 2017-01-23
Filing date: 2017-02-20
Publication date: 2018-07-26
Also published as: CN107063065B; CN107063065A

Abstract

Disclosed is a positioning device. The device comprises: a housing structure (100); a grip structure (200) for gripping by an operator, the grip structure (200) being provided above the housing structure (100); a display unit (400) used to identify a position of a concealed feature, the display unit (400) being provided above the housing structure (100) and positioned at one side of the grip structure (200); and a displacement measurement mechanism (300) used to measure displacement data of the positioning device, the displacement measurement mechanism (300) being provided above the housing structure (100). The positioning device uses a displacement measurement mechanism to measure displacement data so as to ensure more accurate positioning, and is applicable to measurement of an unsmooth surface.

Description

Positioning device

Technical field

The invention relates to the field of object positioning and detection, and in particular to a positioning device.

Background technique

At present, the building must be placed under the walls and under the floor with features such as beams, columns, joists and other supporting objects. In addition, various wires and metal parts are often placed under the walls and under the floor. Wait. After laying the floor and the wall, it is usually necessary to cut or drill into the support surface for various types of decoration, or to provide openings in the surface, but at the same time, it is necessary to avoid damage to the underlying support objects, wires and pipes. In these cases, the builder often wants to know exactly where the support objects are behind the wall or floor before starting work to avoid cutting or drilling into them. In other cases, the constructor may also wish to anchor the weight to the concealed support element to ensure the anchorage of the anchorage, in which case the constructor typically desires to align with the underlying support element. Fasteners are mounted on the surface. However, once the surface finishes such as walls and floors are in place, the position of various types of support elements, wires and pipes cannot be detected by the naked eye or the like.

Now, during the construction, the construction personnel will use the experience of the sound to judge whether there is a support by sound, etc., and some professional hidden feature detection devices will be applied. The most common one is to detect the opacity through the capacitive displacement sensor. The blurring feature behind the surface of the media. These detectors detect changes in capacitance on the surface of the measured medium to determine the presence of hidden features behind the medium. For example, Patent Publication No. CN103052894A discloses a method of positioning an object in a medium and a measuring apparatus for performing the method, and the disclosed technical solution requires finding a starting point of the concealed feature by moving the measuring device back and forth on the surface of the measured medium. At the end point, the width and the full position of the concealed features in the measured medium can be effectively located by manually marking the start and end points of the concealed features on the surface of the medium. The operation is cumbersome and inefficient, and it cannot simultaneously detect and locate the positions of multiple concealed features. And width, and no The positioning device cannot be positioned, so the measurement is not accurate.

Summary of the invention

The present invention is directed to the problem that the positioning device in the prior art cannot accurately detect and visually display the width and position of the concealed features in the measured medium, and provides a concealed feature positioning device. The specific technical solutions are as follows:

A positioning device, comprising: a housing structure; a grip structure for gripping by an operator, the grip structure being disposed above the housing structure; a display assembly for identifying a position of the concealed feature, The display assembly is disposed on the housing structure and located at a side of the grip structure; a displacement measuring mechanism for measuring displacement data of the positioning device, the displacement measuring mechanism being disposed on the housing structure.

Preferably, the displacement measuring mechanism is disposed at a bottom of the housing structure, and the displacement measuring mechanism includes at least one rolling body and an angular displacement measuring device that move synchronously with the housing structure, and the angular displacement measuring device is used for rolling body rotation Angle displacement measurement.

Preferably, the displacement measuring mechanism further comprises a rotating shaft connected to the housing structure, the rolling body being connected to the rotating shaft and rotatable relative to the rotating shaft.

Preferably, the angular displacement measuring device is an encoder.

Preferably, the angular displacement measuring device is a Hall sensor.

Preferably, the displacement measuring mechanism is disposed at a bottom of the housing structure, and the displacement measuring mechanism comprises: an opening disposed on a bottom surface of the housing structure, the opening is for passing light; and a laser light source is disposed in the housing Above the opening, for emitting light, the light can travel to a working plane at the opening to form a speckle generated by the interference on the working plane; a plurality of light sensing units disposed in the housing And the image processing device is disposed in the housing and electrically connected to the light sensing unit for processing The image data generated by the light sensing unit is accordingly generated to generate a display signal corresponding to the displacement of the positioning device.

Preferably, the housing structure comprises a housing cover and a housing base, and the housing cover is fastened by a plurality of a member is fixed against the supporting upper surface of the housing base; the housing base is provided with a receiving cavity from the bottom for accommodating the rolling body, and when the rolling body is placed in the placing cavity, The amount of rotation is a portion that is exposed to the outer circumference of the housing base.

Preferably, the housing cover comprises a housing cover main body and a housing cover supporting portion integrally formed with the housing cover main body, the housing cover main body abutting the supporting upper surface of the housing base; the shell The body cover support portion is a structure that is disposed upward from the case cover main body and protrudes upward with respect to the case cover main body.

Preferably, the holding structure comprises: a first grip disposed at a middle position of the housing structure or near a middle position of the housing structure for being received in a palm of a user, the first grip The two sides of the portion are inclined at an angle to the middle portion; the second grip portion and the third grip portion respectively disposed on both sides of the first grip portion are used for the finger grip of the user, and the second grip The third grip portion is configured to have a curved curved surface structure, and when the finger grips the second grip portion and/or the third grip portion, the finger surface is adapted to the finger grip surface.

Preferably, the positioning device further comprises a switch control element, the switch control element being disposed on the second grip portion and/or the third grip portion, the switch control element containing a control button corresponding to the grip position of the finger position The pressing states of the control buttons respectively correspond to the opening or closing of the positioning device.

Preferably, the first grip portion is formed by the housing cover support portion; the second grip portion and/or the third grip portion are detachably connected with the housing cover; the second a lower surface of the grip portion and the third grip portion is provided with a flange portion, the housing cover is provided with a receiving groove, and the flange portion of the second grip portion and the third grip portion can be inserted into the receiving groove And pulled out from it.

Preferably, the second grip portion and the third grip portion are respectively provided with anti-drop devices, and the anti-shedding device includes: at least one protrusion disposed at the head portion and/or the tail portion of the flange portion a connecting groove provided on the receiving groove for mating connection with the protrusion.

Preferably, the protrusion portion includes: a protrusion portion extending from the flange portion head portion in the longitudinal direction; and/or a first portion disposed near the tail portion of the flange portion and disposed on the lower surface of the flange portion, The protrusion 2 formed by the surface extending in the height direction.

In order to solve the above technical problems, the present invention is solved by the following technical solutions:

(1) The present invention is provided with a displacement measuring mechanism on the housing structure for measuring displacement data when the positioning device is moved, and improving the measurement accuracy of the positioning device of the present invention;

(2) The displacement measuring mechanism of the present invention is provided as a rolling body and an angle measuring device mounted on the rolling body, the rolling body is mounted on the bottom of the housing structure of the positioning device, and the amount of rotation of the rolling body is exposed to the base of the housing. When the positioning device moves on the surface of the object, the amount of rotation forms a surface contact with the surface of the object to be tested, and the rolling contact can adapt to the uneven surface of the object, so that the contact area between the positioning device and the object is large, and the positioning device is opposite to the surface of the object. The mobile positioning is accurate, which greatly improves the accuracy of the positioning device detection;

(3) The displacement measuring mechanism of the present invention is set as an optical trajectory sensor, and is installed at the bottom of the housing structure of the positioning device, and the optical trajectory sensor has high sensitivity and accurate positioning, thereby greatly improving the detection precision of the positioning device;

(4) The first grip portion of the present invention is formed by the housing cover supporting portion for gripping the palm of the user, has a simple structure, and the two sides of the first grip portion are inclined at an angle to the middle portion. It is adapted to the palm of the hand to facilitate the grip of the palm; the second grip portion and the third grip portion are disposed on both sides of the first grip for the user's finger grip, the structure is simple, and the first The second grip portion and the third grip portion are arranged to have a curved curved surface structure, which is adapted to the finger when gripping, and is convenient for holding the finger. The setting of the grip structure of the present invention conforms to the setting of the human body mechanics, and the user When the positioning device is held for movement, the operation comfort is greatly improved, and the fatigue is not easy, and the reliability of the grip is further improved, and it is not easy to loosen, so that the positioning device moves more easily;

(5) The switch control element of the present invention is disposed on the second grip portion and/or the third grip portion, and the finger only needs to be lightly pressed while holding the second grip portion and/or the third grip portion Or dialing the switch control component, the opening or closing of the positioning device can be selected, and no additional operation is required, thereby greatly improving the convenience of using the positioning device of the present invention;

(6) The second grip portion and/or the third grip portion of the present invention is detachably connected to the housing cover for convenient mounting, and the flange portion of the second grip portion and/or the third grip portion After the card is embedded in the receiving groove of the housing cover, the stability of the connection between the two is further improved by the anti-drop device, and the protrusion is disposed at the head portion and/or the tail portion of the flange portion, and the corresponding connecting groove is disposed at the Accommodating the groove, simplifying the structure and further strengthening The stability of the second grip and/or the third grip to the housing structure is achieved.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic structural view 1 of an embodiment of a positioning device according to the present invention;

2 is a second schematic structural diagram of an embodiment of a positioning device according to the present invention;

3 is an exploded view of an embodiment of a positioning apparatus of the present invention;

4 is a schematic structural view of Embodiment 1 of a displacement measuring mechanism of a positioning device according to the present invention;

Figure 5 is a partial enlarged view of the portion A in Figure 4;

6 is a schematic structural diagram of Embodiment 2 of a displacement measuring mechanism of a positioning device according to the present invention;

Figure 7 is a front elevational view showing the second grip portion of the present invention;

Figure 8 is a schematic structural view of an embodiment of a second grip portion of the present invention;

Figure 9 is a front elevational view showing an embodiment of a third grip portion of the present invention;

10 is a schematic structural view of an embodiment of a third grip portion of the present invention;

Figure 11 is a schematic view showing the structure of the embodiment of the casing cover of the present invention.

detailed description

The technical solutions of the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is apparent that the described embodiments are part of the embodiments of the invention, and not all of the embodiments. Based on the described embodiments of the present invention, those obtained by those of ordinary skill in the art without the need for creative labor Other embodiments are within the scope of the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position of indications such as "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplification of the description, and does not indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and thus It is not to be understood as limiting the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or connected integrally; may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.

Unless otherwise defined, technical terms or scientific terms used herein shall be taken to mean the ordinary meaning of the ordinary skill in the art to which the invention pertains. The words "first", "second" and similar terms used in the specification and claims of the present invention do not indicate any order, quantity or importance. Sex, but only to distinguish between different components. Similarly, the words "a" or "an" and the like do not denote a quantity limitation, but mean that there is at least one.

As shown in FIGS. 1-3, as an embodiment of the present invention, a positioning apparatus for detecting a blur feature behind an opaque medium surface includes a housing structure 100 and a holding structure 200 disposed above the housing structure 100. And the display assembly 400, the housing structure 100 of the present embodiment includes a housing cover 101 and a housing base 102. The housing cover 101 of the present embodiment includes a housing cover main body 1011 and a housing integrally formed with the housing cover main body 1011. The body cover support portion 1012 is a structure that is disposed upward from the case cover main body 1011 and protrudes upward with respect to the case cover main body 1011; the case cover 101 is abutted against the case by the case cover main body 1011 The body base 102 is supported on the upper surface and fixed by a plurality of fasteners. The number of the fasteners is plural, and can be arranged along the circumference of the housing cover 101 to realize the housing cover 101 and the housing base 102. a solid connection. The housing cover 101 and the housing base 102 of the present embodiment are made of various insulating materials including, but not limited to, ABS plastic, PVC, acetyl or nylon.

In the present embodiment, as shown in FIGS. 4 and 6, the positioning device is further provided with a displacement measuring mechanism 300 for measuring displacement data of the positioning device. The displacement measuring mechanism 300 of the present embodiment is disposed on the housing structure 100. It is preferably disposed at the bottom of the housing structure 100, that is, the lower surface (outer surface) of the housing base 102.

As a first embodiment of the present invention, as shown in FIGS. 4 and 5, preferably, the displacement measuring mechanism 300 includes a rolling body 301 that moves in synchronization with the housing structure 100, a rotating shaft 302 that is coupled to the housing structure 100, and an angle measuring device. The angle measuring device is used for the angle measurement when the rolling elements 301 are rotated. The rolling bodies 301 of the present embodiment are provided at least one, and the number and mounting positions of the rolling bodies 301 can be set as needed, as long as the related functions can be realized. In the preferred embodiment of the present embodiment, as shown in FIG. 4, three rolling bodies 301 are arranged at three points on the bottom 304 of the housing base 102, so that the positioning device of the present invention smoothly moves along the surface of the medium such as a wall. Stable, it can fit well on the surface of the media. The rolling body 301 of the embodiment is connected to the rotating shaft 302 and rotatable relative to the rotating shaft 302, and the housing base 102 is provided with a receiving cavity 303 from the bottom 304 for receiving the rolling body 301. When the rolling body 301 is placed in the placement chamber 303, the amount of rotation is a portion exposed to the outer circumference of the housing base 102.

In this embodiment, the angle measuring device is an encoder or a Hall sensor, but is not limited thereto. In two configurations, the encoder of the embodiment may be optionally mounted on one of the rolling bodies 301, or an encoder may be mounted on two or three or all of the rolling bodies 301 thereof, by outputting the encoders. The displacement data is compared to eliminate the displacement data error generated by the individual encoders, and the measurement accuracy is provided. The displacement data of the three encoders can also be processed by other existing processing algorithms to provide displacement measurement accuracy. In this embodiment, the rolling body 301 mounted with the encoder is mounted as the displacement measuring mechanism 300, and the rolling body 301 is mounted on the bottom 304 of the housing structure 100 of the positioning device, and the amount of rotation of the rolling body 301 is exposed to the housing base 102. When the positioning device moves on the surface of the object, the amount of rotation forms a line or point contact with the surface of the object to be tested, and the rolling contact can adapt to the uneven surface of the object, so that the contact between the positioning device and the object is stable, and the winding can be conveniently performed. Opening the debris attached to the surface of the medium, which avoids the existing positioning device that is in full contact with the measured medium during the sliding process, the bottom of the positioning device is lifted due to the unevenness of the surface of the object to be tested, or Due to the increase in the size of the positioning device, the bottom plane cannot fit well or adapt to the curvature of the surface of the measured medium, thereby causing the size of the air gap between the bottom portion and the object to be measured to increase and unevenly affect the sensor board. The resulting capacitance value, which in turn affects the accuracy of the detection.

As a second embodiment of the present invention, as shown in FIG. 6, the displacement measuring mechanism 300 preferably includes a photoelectric trajectory sensor assembly mounted on the bottom of the housing structure 100, which specifically includes a bottom surface of the housing structure. An opening for passing light; a laser source disposed above the opening in the housing, the laser source for emitting light that can travel to a working plane at the opening to be at the working plane Forming a speckle due to interference; a plurality of light sensing units disposed in the housing for sensing speckle formed by the light at the opening on the working plane, and generating image data; and an image processor Provided in the housing, electrically connected to the light sensing unit for processing image data generated by the light sensing unit, and accordingly generating a display signal corresponding to the displacement of the positioning device . The measurement light of the laser light source is emitted to the surface of the measured medium through the opening at the bottom, and the displacement data is obtained by the image processor to calculate the image data generated by the light sensing unit according to the reflected light and sent to the controller. The optical track sensor has high sensitivity and accurate positioning, which greatly improves the accuracy of the positioning device detection. Optical track sensor assembly of the present embodiment An existing optical mouse sensor kit can be used, such as the AMD-2610 optical mouse sensor from Agilent.

In this embodiment, as shown in FIG. 2, the display component 400 is preferably a row of LED indicators. The LED indicator of the present embodiment is disposed on the housing structure 100 and is located outside the housing structure 100. For example, the led indicator light is preferably located on one side and/or both sides of the holding structure 200, which simplifies the structure and is convenient for observation. The positioning device of the present invention can intuitively detect the width of the concealed feature by the lighting state of the indicator light, and can Shows the location of the concealed feature below the surface of the measured medium. Moreover, the positioning device can simultaneously locate the position and width of more than one fuzzy feature by the state of the led indicator, so that the user can better observe and mark the position of the feature.

In the present embodiment, as shown in FIGS. 1 and 3, the grip structure 200 of the present invention is used for an operator to grasp, to conveniently grasp the positioning device and operate the movement of the positioning device. Preferably, the grip structure 200 includes a grip portion 201 and a second grip portion 202 and a third grip portion 203 respectively disposed on both sides of the first grip portion 201, the first grip portion 201 being disposed at a middle position of the housing structure 100 or near the shell In the middle position of the body structure 100, the first grip portion 201 of the present embodiment is formed by the housing cover support portion 1012, which simplifies the structure and facilitates the balance when the positioning device is grasped, in a more labor-saving manner. The movement of the positioning device is performed. The first grip portion 201 of the embodiment is used for being accommodated in the palm of the user. Preferably, the two sides of the first grip portion 201 are inclined at a certain angle with respect to the middle position, and are grasped by the user's hand. The first grip portion 201 is adapted to provide grip comfort.

The structure of the second grip portion 202 and the third grip portion 203 of the embodiment may be configured as an integral structure, or may be disposed as two independent parts, and the structural features may be set to be symmetrical or asymmetric. In the scope of protection of this embodiment. The second grip portion 202 and the third grip portion 203 are respectively located at two sides of the first grip portion 201 and are smoothly transitioned with the first grip portion 201. The second grip portion 202 of the embodiment is provided. And the third grip portion 203 is used for the user's finger grip. As shown in FIGS. 7 and 9, the outer grip surface 204 of the second grip portion 202 and the third grip portion 203 is preferably set to have a certain The curved curved surface structure, when the finger grips the second grip portion 202 and/or the third grip portion 203, the finger surface is adapted to the finger gripping surface to facilitate the grip of the finger, and the grip structure 200 of the present invention , ergonomic The user greatly improves the comfort of the operation when the user is holding the positioning device of the present invention, and is not easy to fatigue, further improves the reliability of the grip, and is not easy to loosen, so that the positioning device moves more easily.

In the present embodiment, as shown in FIGS. 3 and 11, the second grip portion 202 and/or the third grip portion 203 of the present embodiment are disposed to be detachably coupled to the housing cover 101 at the second grip portion. The lower surface of the 202 and third grip portions 203 is provided with a flange portion 205, and the housing cover 101 is provided with a receiving groove 206 through which the second grip portion 202 and the third grip portion 203 pass The 205 can be inserted into and detached from the accommodating groove 206 to achieve connection and detachment with the housing cover 101.

In order to further improve the stability of the connection between the second grip portion 202 and the third grip portion 203 and the housing cover 101, in the present embodiment, as shown in FIGS. 8 and 10, the second grip portion 202, The three-grip portion 203 is provided with an anti-drop device. The anti-drop device of the present embodiment includes at least one protrusion disposed at the head portion and/or the tail portion of the flange portion 205, and is disposed on the receiving groove 206. a connecting groove that is coupled to the protrusion. The protrusion portion of the embodiment includes a protrusion portion 207 and a protrusion portion 208. The protrusion portion 207 and the protrusion portion 208 may be provided in the same structure or may be provided in different structures. In this embodiment, the second grip is improved. For convenience of attachment and detachment of the portion 202 and the third grip portion 203, it is preferable that the protrusion portion 207 is formed to extend from the head portion of the flange portion 205 in the longitudinal direction, that is, the first end portion of the second grip portion 202 and the third grip portion 203. The protruding portion 207 is inserted into the connecting groove and fastened. The protrusion portion 207 of the embodiment is provided with a guiding portion 209 along the insertion portion to facilitate the mounting and dismounting of the protruding portion 207. Preferably, the protruding portion 208 is disposed at The protrusion portion 208 of the present embodiment is disposed on the lower surface of the flange portion 205 near the tail portion of the flange portion 205 or the tail portion of the flange portion 205, that is, formed downward from the lower surface in the height direction, the protrusion of this embodiment Part 2 is similar to the connection structure and functions to assist in further connection. The first end of the second grip portion 202 and the third grip portion 203 of the embodiment are inserted into the connecting groove through the protrusion portion 207 and fastened, and the embodiment is matched with the protrusion portion 207 and the protrusion portion 208. The connection groove is provided in accordance with the specific structure of the protrusion portion 207 and the protrusion portion 208, and is not limited to the same structure. The head portion and the tail portion of the flange portion 205 according to this embodiment are not limited to a specific one end, and the positions of the head portion and the tail portion are oppositely arranged and can be interchanged. In this embodiment, the definitions of the head portion and the tail portion are performed for convenience. Good description, It is not limited in structure to a specific location. Preferably, the protrusions 207 and the protrusions 208 are respectively disposed at the head and the tail of the flange portion 205, that is, the first and second portions of the second grip portion 202 and/or the third grip portion 203 are further connected by the anti-drop device, The reliability of the connection is improved. Of course, it is not limited to the first and the tail portions provided in the flange portion 205, and a plurality of protrusions may be provided at the intermediate position of the flange portion 205, or protrusions arranged in a row may be provided in this embodiment. Within the scope of protection of the invention.

In the present embodiment, as shown in FIG. 1, the positioning device of the present invention further includes a switch control element 500. The switch control element 500 of the present embodiment is disposed on the second grip portion 202 and/or the third grip portion 203. The switch control component 500 includes a control button corresponding to the position of the grip gesture finger, the press state of the control button respectively corresponding to the opening or closing of the positioning device, and the switch control component 500 of the present invention is disposed at the second grip portion 202 and On the third grip portion 203, when the finger grips the second grip portion 202 and/or the third grip portion 203, the finger only needs to gently press or pull the switch control member 500, and the positioning device can be selected. Turning on or off without additional operations greatly improves the convenience of the positioning device of the present invention.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; and the modifications or substitutions do not deviate from the scope of the technical solutions of the embodiments of the present invention.

In summary, the above description is only the preferred embodiment of the present invention, and all changes and modifications made by the scope of the present invention should be covered by the present invention.

Claims

A positioning device, comprising:

Housing structure

a grip structure for gripping by an operator, the grip structure being disposed above the housing structure;

a display component for identifying a location of the concealed feature, the display component being disposed on the housing structure and located at a side of the grip structure;

a displacement measuring mechanism for measuring displacement data of the positioning device, the displacement measuring mechanism being disposed on the housing structure.
The positioning apparatus according to claim 1, wherein said displacement measuring mechanism is disposed at a bottom of the housing structure, and said displacement measuring mechanism includes at least one rolling body and angular displacement measuring device that moves in synchronization with the housing structure. The angular displacement measuring device is used for angular displacement measurement when the rolling elements rotate.
The positioning apparatus according to claim 2, wherein said displacement measuring mechanism further comprises a rotating shaft coupled to the housing structure, said rolling body being coupled to the rotating shaft and rotatable relative to the rotating shaft.
A positioning apparatus according to claim 2, wherein said angular displacement measuring means is an encoder.
The positioning apparatus according to claim 2, wherein said angular displacement measuring means is a Hall sensor.
The positioning device according to claim 1, wherein the displacement measuring mechanism is disposed at a bottom of the housing structure, and the displacement measuring mechanism comprises:

An opening disposed on a bottom surface of the housing structure, the opening for passing light;

a laser light source disposed in the housing, above the opening, for emitting light, the light may travel to a working plane at the opening to form speckle generated by the interference on the working plane;

a plurality of light sensing units disposed in the housing for sensing speckle formed by the light at the opening on the working plane, and thereby generating image data;

An image processor is disposed in the housing and electrically connected to the light sensing unit for processing image data generated by the light sensing unit, and generating a display signal corresponding to the display signal The displacement of the positioning device.
A positioning apparatus according to any one of claims 2 to 6, wherein the housing structure comprises a housing cover and a housing base, the housing cover being fixed against the housing by a plurality of fasteners Supporting the upper surface of the body base;

The housing base is provided with a receiving cavity from the bottom for accommodating the rolling body, and when the rolling body is placed in the placing cavity, the rotating amount is a part exposed to the outer circumference of the housing base.
The positioning device according to claim 7, wherein the housing cover comprises a housing cover main body and a housing cover supporting portion integrally formed with the housing cover main body, the housing cover main body abutting The upper surface of the housing base supports the upper surface; the housing cover support portion is a structure that is disposed upward from the housing cover main body and protrudes upward relative to the housing cover main body.
The positioning device according to claim 7, wherein the holding structure comprises:

a first grip portion disposed at a central portion of the housing structure or near a central portion of the housing structure for receiving in a palm of a user, the two sides of the first grip portion being inclined at an angle relative to the middle portion transition;

a second grip portion and a third grip portion respectively disposed on both sides of the first grip portion for gripping a finger of the user, and the second grip portion and the third grip portion are disposed to have a certain arc The curved surface structure, when the finger grips the second grip portion and/or the third grip portion, the finger surface is adapted to the finger grip surface.
The positioning apparatus according to claim 9, further comprising a switch control element disposed on the second grip portion and/or the third grip portion, the switch control member having a corresponding grip The control button holding the position of the finger, the pressing state of the control button respectively corresponding to the opening or closing of the positioning device.
The positioning device according to claim 9, wherein:

The first grip portion is formed by the housing cover support portion;

The second grip portion and/or the third grip portion are disposed to be detachably connected to the housing cover;

The lower surface of the second grip portion and the third grip portion are provided with a flange portion, and the housing cover is provided with a receiving groove, and the flange portion of the second grip portion and the third grip portion It can be inserted into and removed from the receiving groove.
The positioning device according to claim 11, wherein the second grip portion and the third grip portion are respectively provided with anti-drop devices, and the anti-shedding device settings include:

At least one protrusion disposed at the head portion and/or the tail portion of the flange portion;

a connecting groove provided on the receiving groove for mating connection with the protrusion.
The positioning device according to claim 12, wherein the protrusion comprises:

a protrusion 1 extending from the flange portion in the longitudinal direction; and/or

A protrusion 2 disposed adjacent to the tail portion of the flange portion and disposed on the lower surface of the flange portion and extending in the height direction from the lower surface.