WO2013056652A1

WO2013056652A1 - Rotary telescopic crutch

Info

Publication number: WO2013056652A1
Application number: PCT/CN2012/083109
Authority: WO
Inventors: 杨红涛
Original assignee: Yang Hongtao
Priority date: 2011-10-18
Filing date: 2012-10-17
Publication date: 2013-04-25
Also published as: CN103874476A; CN202396625U

Abstract

A rotary telescopic crutch comprises a shoulder and hand connecting rod (1), a manual rotating lock rod (2), a hand holding rod (3), a telescopic rod slide rail (4), a manual adjusting lock (5), a telescopic rod (6) and a shoulder support rod (7). One end of the shoulder and hand connecting rod (1) is connected with the shoulder support rod (7), and the other end thereof is rotatablely connected with the hand holding rod (3) through the manual rotating lock rod (2). One end of the telescopic rod slide rail (4) is connected with the hand holding rod (3), and the other end thereof is connected with the manual adjusting lock (5). The telescopic rod (6) is provided in the telescopic rod slide rail (4) and slidingly connected with the telescopic rod slide rail (4). A locating lock hole (8) is provided on the telescopic rod (6), and the manual adjusting lock (5) is matched with the locating lock hole (8) so as to fix the telescopic rod (6) in the telescopic rod slide rail (4). The shoulder and hand connecting rod (1) of the rotary telescopic crutch can be rotatablely folded with the manual rotating lock rod (2) as an axis, and the telescopic rod (6) can also achieve the effect of contraction through the telescopic rod slide rail (4), so that the whole length of the crutch can be further shortened, and the crutch is convenient to carry.

Description

Rotating telescopic crutch

Technical field

The present invention relates to the field of medical devices, and in particular to a rotary telescopic cane. Background of the invention

In the field of medical devices, the commonly used crutches are shown in Figures 1 and 2.

The crutches in FIG. 1 are composed of a shoulder support rod 101, two support rods 102, a grip rod 103 and a support rod 104; wherein the support rod 104 is provided with a plurality of positioning holes 105, and the support rods 102 are also provided with corresponding The mating through hole 106 can be fixed to the bracket rod 102 by bolts passing through the positioning hole 105 and the through hole 106. The length of the integral cane can be adjusted through different positioning holes 105. In use, the shoulder support rod 101 is used to support the patient's armpit, and the patient's hand holds the grip rod 103, that is, the crutches can be operated for movement.

Another simple crutches, as shown in FIG. 2, is fixedly welded by a support rod 201 and a hand grip 202. In use, the patient only needs to hold the grip bar 202 by hand to operate the crutches for movement. It is relatively simple, the overall length is short, but the height cannot be adjusted.

Among the above two kinds of crutches, although the first type can adjust the height, it is limited by the length of the bracket rod 102 itself, and even if the support rod 104 is completely retracted, the overall length of the crutches is relatively long and inconvenient to carry.

In addition, although the existing cane can adjust the height, it is adjusted by using bolts, and generally, it is fixed by a plurality of bolts for fixing, and it is necessary to use a tool to remove the bolt and then install it, which is laborious and time-consuming, and is inconvenient to adjust. Summary of the invention

The embodiment of the invention provides a rotary telescopic crutches, which can be rotated and stretched, and is convenient to carry. The technical solution of the embodiment of the present invention is implemented as follows: A rotary telescopic crutches, comprising: a shoulder strap connecting rod, a manual rotating lock lever, a grip rod, a telescopic rod slide rail, a manual adjustment lock, a telescopic rod and a shoulder rod;

One end of the shoulder connecting rod is connected to the shoulder rod, and the other end is connected to the manual rotating lock rod;

The handle bar is provided with a stepped hole, and the shoulder connecting rod is rotatably connected to the hand grip bar through the stepped hole through the manual rotary lock bar;

One end of the telescopic rod slide rail is connected to the hand grip bar, and the other end is connected to the manual adjustment lock;

The telescopic rod is disposed on the telescopic rod slide rail and slidably connected to the telescopic rod slide rail; the telescopic rod is further provided with a positioning lock hole, and the manual adjustment lock rod cooperates with the positioning lock hole The telescopic rod is fixed on the telescopic rod slide rail.

Preferably, the shoulder connecting rod and the shoulder rod are connected by any one of screwing, welding, bolting, riveting and bonding.

Preferably, the end of the manual rotation lock lever away from the shoulder connecting rod is provided with a limiting block and a reset compression spring, and the reset compression spring is sleeved outside the manual rotation lock lever, and the two ends respectively and the limit position The block is joined to the stepped surface 4 of the stepped hole.

Preferably, the shoulder connecting rod is screwed with the manual rotation lock lever.

Preferably, one end of the hand grip bar connected to the shoulder connecting rod is provided with a rectangular positioning groove, and the shoulder connecting rod is further provided with a rectangular positioning boss that cooperates with the rectangular positioning groove.

Preferably, one end of the hand grip bar connected to the shoulder strap connecting rod is provided with a positioning pin hole; the shoulder connecting rod is provided with a positioning position matched with a positioning pin hole provided on the grip bar Pin.

Preferably, one end of the grip bar that is connected to the shoulder connecting rod is provided with a positioning pin; the shoulder connecting rod is provided with a positioning with a positioning pin provided on the grip bar. Pin hole. Preferably, the number of the positioning pin holes is two, distributed on both sides of the step hole on the hand grip bar, the center of the two positioning pin holes and the center of the step hole in the hand grip bar are in a On the line.

Preferably, the number of the positioning pins is two, distributed on both sides of the step hole on the hand grip bar, the center of the two positioning pins and the center of the step hole in the hand grip bar are in a On the line.

Preferably, the grip bar is H-shaped.

Preferably, the telescopic rod slide rails are disposed on two sides of the telescopic rod, and the slide rail shape is a linear rectangular step.

Preferably, one end of the telescopic rod is provided with a sliding connecting member, and two sides of the sliding connecting member are provided with rectangular grooves that cooperate with the sliding rail of the telescopic rod.

Preferably, a diagonal intersection of the rectangular positioning groove coincides with a center of the step hole on the hand grip;

The number of the positioning rectangular bosses is one, which is disposed on the shoulder connecting rod, and the manual rotating locking rod passes through the intersection of the rectangular diagonal lines of the positioning rectangular bosses.

It can be seen from the above technical solution that the rotary telescopic cane of the present invention, the shoulder connecting rod is rotatably connected with the hand grip bar through the manual rotating lock bar, thereby realizing the shoulder connecting rod and the shoulder rod connected thereto By rotating the lock lever as a rotating shaft, the shoulder connecting rod can be rotated and folded to reduce the overall length of the rotating telescopic stick. In addition, through the cooperation of the telescopic rod slide rail and the telescopic rod, the telescopic rod can be retracted into the telescopic rod slide rail, thereby further reducing the overall length of the rotary telescopic crutches, thereby realizing the rotation and expansion of the rotary telescopic crutches, and achieving convenient carrying. purpose.

At the same time, by the cooperation of the adjustment lock provided on the telescopic slide rail and the positioning lock hole provided on the telescopic rod, the telescopic rod can be positioned at a required position in the telescopic rod slide rail, thereby adjusting the overall length of the rotary telescopic crutches after deployment. It can be adapted to patients of different heights. In addition, the rotary telescopic cane of the present invention realizes the telescopic adjustment of the telescopic rod by manually adjusting the lock, the locking hole on the telescopic rod, and the cooperation of the telescopic rod slide rail, and only needs to pull out the manual adjustment lock, align the lock hole Plug it in again, and the adjustment can be completed without the help of other tools. Compared with the prior art, it saves time and effort, and is more convenient and quicker. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic structural view of a conventional crutches;

2 is a schematic structural view of another conventional crutches;

3 is a schematic view showing the structure of a rotary telescopic cane in a state of rotational contraction according to Embodiment 1 of the present invention;

4 is a schematic view showing the structure of a rotary telescopic crutches in a state of rotational contraction according to Embodiment 1 of the present invention;

Figure 5 is a schematic view showing the structure of the rotary telescopic cane in a state of rotational contraction according to the second embodiment of the present invention;

6 is a schematic structural view of a rotary telescopic cane in a rotationally stretched state according to a second embodiment of the present invention;

7 is a schematic view showing a positioning structure of a rotary telescopic cane according to a second embodiment of the present invention. Mode for carrying out the invention

The present invention will be further described in detail below with reference to the accompanying drawings.

3 is a schematic structural view of a rotary telescopic crutches in a state of rotational contraction according to Embodiment 1 of the present invention, and FIG. 4 is a schematic structural view of a rotary telescopic crutches in a rotating and extended state according to Embodiment 1 of the present invention, as shown in FIGS. The rotary telescopic crutches include: a shoulder strap connecting rod 1, a manual rotation lock lever 2, a grip rod 3, a telescopic rod slide rail 4, a manual adjustment lock 5, a telescopic rod 6 and a shoulder rod 7; wherein, the shoulder One end of the connecting rod 1 is connected to the shoulder rod 7, and the other end is connected to the hand Rotating the rotation lock lever 2;

The handle bar 3 is provided with a stepped hole 9, and the shoulder connecting rod 1 is rotatably connected to the hand grip 3 through the stepped hole 9 through the manual rotary lock lever 2;

One end of the telescopic rod rail 4 is connected to the hand grip 3, and the other end is connected to the manual adjustment lock 5;

The telescopic rod 6 is disposed on the telescopic rod slide rail 4 and is slidably connected to the telescopic rod slide rail 4; the telescopic rod 6 is further provided with a positioning lock hole 8, the manual adjustment lock 5 and the The positioning lock hole 8 cooperates to fix the telescopic rod 6 to the telescopic rod slide rail 4.

The shoulder connecting rod 1 is rotatably connected to the holding rod 3 through the manual rotating lock rod 2, so that the shoulder connecting rod 1 and the shoulder rod 7 connected thereto are rotated by the manual rotating lock rod 2 as a rotating shaft. Therefore, the shoulder connecting rod 1 can be rotated and folded to reduce the overall length of the rotating telescopic stick. In addition, by the cooperation of the telescopic rod slide rail 4 and the telescopic rod 6, the telescopic rod 6 can be received into the telescopic rod slide rail 4, thereby further reducing the overall length of the rotary telescopic crutches, thereby realizing the rotation and expansion of the rotary telescopic crutches. To achieve the purpose of carrying.

At the same time, by the cooperation of the adjustment lock 5 provided on the telescopic slide rail 4 and the positioning lock hole 8 provided on the telescopic rod 6, the telescopic rod 6 can be positioned at a desired position on the telescopic rod slide rail 4, thereby adjusting the rotary telescopic crutches. The overall length after deployment can be adapted to patients of different heights.

As a preferred embodiment, the rotary telescopic cane of the second embodiment of the present invention is as shown in FIGS. 5 and 6, wherein

The shoulder connecting rod 1 and the shoulder rod 6 are screwed, and of course, any fixed connection such as welding, bolting, riveting and bonding can be used.

The grip 3 is H-shaped or of any other shape.

The shoulder connecting rod 1 and the manual rotating lock rod 2 may be connected by any fixed connection such as screwing, welding, bolting, riveting and bonding.

a shoulder connecting rod 1 is rotatably connected to the hand grip 3 by the manual rotation lock lever 2, The body connection manner is as follows: a step hole 9 is opened in both the grip bar 3 and the shoulder connecting rod 1 , and the manual rotation lock bar 2 passes through the step hole 9 opened in the hand grip bar 3 to move the hand grip bar 3 and the shoulder connecting rod 1 is rotatably connected.

Preferably, the end of the manual rotation lock lever 2 away from the shoulder connection rod 1 is further provided with a limiting block 11 and a reset compression spring 12, and the reset compression spring 12 is sleeved outside the manual rotation lock lever 2, The ends are respectively connected to the stepped surface 11 of the limiting block 11 and the stepped hole 9.

The above structure allows the manual rotation lock lever 2 to be pulled out and retracted from the hand grip 3 within the range between the stepped surface 10 of the stepped hole 9 and the stopper 11 so that the manual rotary lock lever 2 can be pulled out of the grip bar 3, and return to the original position under the action of the reset compression spring 12, the distance between the stepped surface 10 of the stepped hole 9 and the limit block 11 can be set as needed, for example, 15 to 18 mm, which is convenient for pulling out and recovering. , it is easier to operate.

Based on the above structure, with the positioning measures, the shoulder connecting rod 1 and the hand grip 3 can be positioned at a preset position without being freely rotated. Specifically, the following two methods may be used, or a combination of the following two methods, of course, It is not limited to the following two methods, and is only an example here.

As shown in FIG. 7 , the end of the hand grip 3 connected to the shoulder connecting rod 1 is further provided with a rectangular positioning groove 13 , and the shoulder connecting rod 1 is further provided with the positioning. The groove 13 cooperates with a rectangular positioning boss 14, and the diagonal intersection of the rectangular groove coincides with the center of the stepped hole 9 on the hand grip 3.

After the shoulder connecting rod 1 is pulled out and rotated to the corresponding angle, the cooperation between the positioning boss 14 and the positioning groove 13 allows the shoulder connecting rod 1 and the holding rod 3 to be fixed at a specific angle. The telescopic state and the extended state in 5, 6. In addition, the positioning groove 13 can also be any polygonal shape.

In the second hand, the end of the hand grip 3 is connected with the shoulder pin 1 and is provided with a positioning pin hole 15; the shoulder connecting rod 1 is provided with a positioning provided on the hand grip 3 The pin hole 15 is fitted with a positioning pin 16. When the shoulder connecting rod 1 is pulled out, and then rotated 180° clockwise or counterclockwise, the positioning pin 16 on the shoulder connecting rod 1 is inserted into the two positioning pin holes of the end of the grip bar 3, in the grip rod 3 The reset compression spring 12 translates the compressed elastic potential energy to push the rotary lock lever 2 back to position and stop.

In addition, the positioning pin hole 15 is disposed on the shoulder connecting rod 1, and the positioning pin 16 is also disposed on the hand holding rod 3. The number and distribution positions of the specific positioning pin 16 and the positioning pin hole 15 are arbitrary, FIG. The number of the positioning pin holes 15 shown in FIG. 6 is two, distributed on both sides of the stepped hole 9 on the hand grip 3, the center of the two positioning pin holes 15 and the hand grip 3 The center of the through hole 9 is in a straight line. For the embodiment in which the positioning pin hole 15 is provided on the shoulder connecting rod 1 and the positioning pin 16 is disposed on the hand grip 3, the number of the positioning pins 16 is two, and the hand grip 3 is distributed. On both sides of the upper stepped hole 9, the center of the two positioning pins 16 and the center of the through hole in the hand grip 3 are in a straight line.

Further, for the telescopic portion of the rotary telescopic cane of the embodiment of the present invention, in order to achieve rapid adjustment, the following preferred structure can be employed:

A sliding connection between the telescopic rod 6 and the telescopic rod sliding rail 4 is adopted. For example, the telescopic rod sliding rail 4 is disposed on two sides of the telescopic rod 6 , and the sliding rail shape is a straight rectangular step. The end of the telescopic rod 6 is provided with a sliding connecting member 18, and the sliding connecting member is provided with rectangular grooves on the two sides of the telescopic rod sliding rail. A sliding connection is formed by the cooperation of the rectangular boss slide rail and the rectangular recess.

The manual adjustment lock 5 includes a lock lever 17 respectively disposed on two sides of the bottom of the telescopic rod slide rail 4, and the lock rod outer sleeve has a reset compression spring, and a plurality of positioning lock holes 8 cooperate therewith, which can be distributed The arbitrary position on the telescopic rod 6 can be determined according to the actual adjustment needs.

The positioning lock holes 8 at different positions on the telescopic rod 6 can fix the telescopic rods 6 at different positions, thereby adjusting the overall length of the rotary telescopic walking stick. When adjusting, the lock lever 17 can be pulled out. When a positioning lock hole 8 suitable for its own height is selected, the lock lever 17 is released, and the reset compression spring outside the lock lever 17 pushes the lock lever to the positioning lock on the telescopic rod 6. The hole 8 is positioned to stop.

Claims

Claim

A rotary telescopic crutches, comprising: a shoulder strap connecting rod, a manual rotating lock lever, a grip rod, a telescopic rod slide rail, a manual adjustment lock, a telescopic rod and a shoulder rod;

2. The rotary telescopic walking stick according to claim 1, wherein the shoulder connecting rod and the shoulder rod are connected by any one of screwing, welding, bolting, riveting and bonding. .

The rotary telescopic cane according to claim 1 , wherein one end of the manual rotation lock lever away from the shoulder connection rod is provided with a limiting block and a reset compression spring, and the reset compression spring sleeve is disposed on the In addition to the manual rotation of the lock lever, the two ends abut against the stepped surface of the limiting block and the stepped hole, respectively.

The rotary telescopic cane according to claim 3, wherein the shoulder connecting rod is screwed to the manual rotation lock lever.

The rotary telescopic cane according to claim 4, wherein one end of the hand grip that is connected to the shoulder connecting rod is provided with a rectangular positioning groove, and the shoulder connecting rod is further provided. There is a rectangular positioning boss that cooperates with the rectangular positioning groove.

The rotary telescopic cane according to claim 4, wherein the hand grip The one end connected to the shoulder connecting rod is provided with a positioning pin hole;

The shoulder connecting rod is provided with a positioning pin that cooperates with a positioning pin hole provided on the hand grip.

The rotary telescopic cane according to claim 6, wherein one end of the hand grip that is connected to the shoulder connecting rod is provided with a positioning pin;

The shoulder connecting rod is provided with a positioning pin hole that cooperates with a positioning pin provided on the hand grip.

The rotary telescopic cane according to claim 6, wherein the number of the positioning pin holes is two, and the two sides of the step holes are arranged on the hand grip bar, and the two positioning pin holes are The center of the circle and the center of the stepped hole in the grip bar are in a straight line.

The rotary telescopic cane according to claim 7, wherein the number of the positioning pins is two, and the two positioning pins are distributed on two sides of the step hole on the hand grip bar. The center of the circle and the center of the stepped hole in the grip bar are in a straight line.

The rotary telescopic cane according to claim 1, wherein the hand grip is H-shaped.

The rotary telescopic cane according to claim 1, wherein the telescopic rod slide rails are disposed on two sides of the telescopic rod, and the slide rail shape is a straight rectangular step.

The rotary telescopic cane according to claim 1 , wherein one end of the telescopic rod is provided with a sliding connecting member, and two sides of the sliding connecting member are provided with rectangular grooves that cooperate with the sliding rail of the telescopic rod .

The rotary telescopic cane according to claim 5, wherein a diagonal intersection of the rectangular positioning groove coincides with a center of the step hole on the hand grip;