CN221696742U - Tube drawing pliers - Google Patents

Abstract

The utility model discloses a tube extraction pliers, comprising a left pliers body and a right pliers body, wherein the left pliers body is an integral structure consisting of a left pliers handle, a left pliers head and a left pliers beak arranged in sequence from bottom to top, and the right pliers body is an integral structure consisting of a right pliers handle, a right pliers head and a right pliers beak arranged in sequence from bottom to top, a left circular hinge is arranged at the rear side of the left pliers head, the left circular hinge is provided with a left pin shaft through hole, a right circular hinge is arranged at the front side of the right pliers head, the right circular hinge is provided with a right pin shaft through hole, the left pliers body and the right pliers body are hinged together through a pin shaft penetrating through the left pin shaft through hole and the right pin shaft through hole, the left pliers beak and the right pliers beak are flat structures narrow in the left-right direction and wide in the front-back direction, and a U-shaped tube extraction notch is arranged at the upper ends of the left pliers beak and the right pliers beak. The utility model discloses a tube extraction pliers, comprising a left pliers handle, a left pliers head and a right pliers beak arranged in sequence from bottom to top, a left circular hinge is arranged at the rear side of the left pliers head, the left circular hinge is provided with a left pin shaft through hole, and a right circular hinge is provided with a right pin shaft through hole, the left pliers body and the right pliers body are hinged together through a pin shaft penetrating through the left pin shaft through hole and the right pin shaft through hole, the left pliers beak and the right pliers beak are flat structures narrow in the left-right direction and wide in the front-back direction, and a U-shaped tube extraction notch is arranged at the upper ends of the left pliers beak and the right pliers beak. The utility model discloses a tube extraction pliers, comprising a left pliers handle, a left pliers head and a right pliers beak,

Description

A tube extraction forceps

Technical Field

The utility model belongs to the technical field of hardware tools, in particular to a pipe pulling pliers.

Background Art

The pipeline gas self-closing valve is called the self-closing valve for short. It is installed on the pipeline of the low-pressure gas system. When the pipeline gas supply pressure is under-pressure or over-pressure, it can automatically close without electricity or other external power and must be opened manually. The pipeline gas self-closing valve is suitable for pipeline natural gas, liquefied petroleum gas and artificial coal gas. The basic principle of the pipeline gas self-closing valve is to magnetize the permanent magnetic material according to the design requirements to make a multi-pole permanent magnetic linkage mechanism with permanent memory, identify the changes in the gas pressure parameters passing through it, and automatically close the valve when it exceeds the safety set value to cut off the gas source.

The outlet pipe of the pipeline gas self-closing valve is connected to the user's gas equipment through a high-pressure hose. A number of convex rings are arranged on the outlet pipe of the self-closing valve to prevent the connector from being detached from the pipe. The arrangement of the convex rings makes the connection between the high-pressure hose and the self-closing valve tighter, avoiding the occurrence of gas leakage. However, when the high-pressure hose needs to be repaired or replaced, it is difficult to directly pull the high-pressure hose off the outlet pipe of the self-closing valve, which brings great difficulties to repair and replacement. In the prior art, there is no special tube extraction tool. If a targeted tube extraction pliers can be designed for use by gas company maintenance personnel, work efficiency and service quality can be improved.

Utility Model Content

The utility model aims to solve the problems existing in the prior art and provides a tube pulling pliers which can very conveniently pull a high-pressure hose off the air outlet pipe of a self-closing valve.

The technical scheme of the utility model is realized as follows: a tube extraction pliers comprises a left pliers body and a right pliers body, the left pliers body is an integral structure consisting of a left pliers handle, a left pliers head and a left pliers beak arranged in sequence from bottom to top, the right pliers body is an integral structure consisting of a right pliers handle, a right pliers head and a right pliers beak arranged in sequence from bottom to top, a left circular hinge is arranged at the rear side of the left pliers head, the left circular hinge is provided with a left pin shaft through hole, a right circular hinge is arranged at the front side of the right pliers head, the right circular hinge is provided with a right pin shaft through hole, the left pliers body and the right pliers body are hinged together by a pin shaft penetrating through the left pin shaft through hole and the right pin shaft through hole, and the characteristic is that the left pliers beak and the right pliers beak are flat structures narrow in the left-right direction and wide in the front-back direction, and a U-shaped tube extraction notch is arranged at the upper ends of the left pliers beak and the right pliers beak.

Furthermore, bosses or recesses are provided on the inner sides of the lower parts of the left and right clamp heads, and springs are installed on the two bosses or recesses.

Furthermore, as another improvement scheme, bosses or recesses are provided on the inner sides of the upper ends of the left and right pliers handles, and springs are installed on the two bosses or recesses.

Furthermore, the left clamp handle and the right clamp handle are in arc shape.

Furthermore, the thickness of the upper ends of the left and right forceps beaks in the left and right directions is 1.0-1.5 mm, and the thickness of the lower ends is 2.2-3.0 mm.

Compared with the prior art, the beneficial effects of the utility model are:

(1) When the tube extraction pliers of the utility model are used, the pliers handle is held by the right hand, and the U-shaped opening of the flat fixing fork is inserted into the gap between the air outlet pipe and the high-pressure hose. The flat fixing fork fixes the air outlet pipe of the self-closing valve. The spring of the tube extraction pliers is usually in an open state. When the pliers handle is not applied with force, the pliers beak is closed. When the pliers handle is applied with force, the spring is compressed and the pliers beak is opened. When the pliers handle is pressed, the pliers handle is applied with force, and the pliers beak is opened, so that the air outlet pipe of the self-closing valve and the high-pressure hose are separated quickly and labor-savingly. The tube extraction pliers play the role of lever labor-saving. Since it is very convenient to use, time-saving and labor-saving, it has a good prospect for promotion and application.

(2) The front end of the tube extraction pliers of the utility model is provided with a flat fixing fork, and a U-shaped opening is provided on the flat fixing fork, which is clamped on the air outlet pipe of the self-closing valve through the U-shaped opening. The tube extraction pliers as a whole adopt a reverse clamp design. When at rest, the beak of the pliers is closed, and the beak of the pliers is opened outward by pressing the pliers handle. The opening of the beak of the pliers can conveniently separate the air outlet pipe from the high-pressure hose. The structure is simple and the use is quick and convenient.

(3) The entire beak of the tube extraction pliers is designed as a flat longitudinal U-shaped body. The flat longitudinal U-shaped body can easily insert the beak of the pliers into the gap between the air outlet pipe on the outside of the pipeline and the high-pressure hose when in use. The tube extraction pliers of the utility model adopt professional strong springs, which have strong and lasting elastic force and are not easily damaged by high-frequency spring pressure. The pliers head is hot-pressed as a whole and forged with chrome-vanadium steel. The pliers head is anti-oxidation treated, has high hardness, and is not easy to rust during use.

(4) The pliers with the above structure will not have the spring fall off during use, making them more convenient to use.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of the tube extraction forceps of the utility model in a closed state;

FIG2 is a schematic diagram of the three-dimensional structure of the tube extraction forceps of the utility model in an open state;

FIG3 is a schematic diagram of the three-dimensional structure of the tube extraction forceps of the present invention in an exploded state from a rear side perspective;

FIG4 is a schematic diagram of the three-dimensional structure of the tube extraction forceps of the present invention in an exploded state from the front side perspective;

FIG5 is a rear view of the tube extraction forceps of the present invention;

FIG6 is a left side view of the tube extraction forceps of the utility model;

FIG. 7 is a schematic diagram of the three-dimensional structure of the tube extraction forceps of the utility model in use.

In the figure: 1-left clamp handle, 2-left clamp head, 3-left clamp beak, 4-right clamp handle, 5-right clamp head, 6-right clamp beak, 7-left circular hinge, 8-left pin shaft through hole, 9-right circular hinge, 10-right pin shaft through hole, 11-pin shaft, 12-U-shaped tube extraction notch, 13-boss, 14-spring, 15-self-closing valve, 16-air outlet pipe, 17-high-pressure hose.

DETAILED DESCRIPTION

The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should be the common meanings understood by technicians in the field to which the utility model belongs. In the description of this application, it should be understood that the orientations or positional relationships indicated by the terms "middle", "upper", "lower", "front", "back", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

As shown in Figures 1 to 7, a tube extraction pliers includes a left pliers body and a right pliers body, the left pliers body is an integral structure consisting of a left pliers handle 1, a left pliers head 2 and a left pliers beak 3 arranged in sequence from bottom to top, the right pliers body is an integral structure consisting of a right pliers handle 4, a right pliers head 5 and a right pliers beak 6 arranged in sequence from bottom to top, a left circular hinge 7 is provided at the rear side of the left pliers head 2, the left circular hinge 7 is provided with a left pin shaft through hole 8, a right circular hinge 9 is provided at the front side of the right pliers head 5, the right circular hinge 9 is provided with a right pin shaft through hole 10, the left pliers body and the right pliers body are hinged together by a pin shaft 11 passing through the left pin shaft through hole 8 and the right pin shaft through hole 10, the left pliers beak 3 and the right pliers beak 6 are flat structures narrow in the left and right directions and wide in the front and rear directions, and a U-shaped tube extraction notch 12 is provided at the upper ends of the left pliers beak 3 and the right pliers beak 6. A boss 13 is provided on the inner side of the lower part of the left pliers head and the right pliers head, and a spring 14 is installed on the two bosses 13. The left clamp handle 1 and the right clamp handle 4 are in arc shape. The left clamp beak 3 and the right clamp beak 6 have an upper end thickness of 1.2 mm in the left and right directions and a lower end thickness of 2.5 mm.

As shown in FIG. 7 , when in use, the tube pulling pliers are in the closed state, with the left pliers beak 3 and the right pliers beak 6 inserted into the gap at the connection between the outlet pipe 16 of the pipeline gas self-closing valve 15 and the high-pressure hose 17. The left pliers handle 1 and the right pliers handle 4 are pinched by hand, and the left pliers beak 3 and the right pliers beak 6 are opened by the lever principle to pull the high-pressure hose 17 off the outlet pipe 16.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims (5)

1. The utility model provides a tube drawing pliers, including left side pincers body and right side pincers body, left side pincers body is by the left pincers handle that sets gradually from the bottom up, left side binding clip and the overall structure that the left side pincers beak constitutes, right side pincers body is by the right side pincers handle that sets gradually from the bottom up, right side binding clip and right pincers beak constitute, the rear side of left side binding clip is equipped with left circular hinge portion, left circular hinge portion is equipped with left round pin axle through-hole, the front side of right side binding clip is equipped with right circular hinge portion, right circular hinge portion is equipped with right round pin axle through-hole, left side pincers body and right side pincers body are articulated together through the round pin axle that runs through in left round pin axle through-hole and right round pin axle through-hole, its characterized in that: the left forceps beak and the right forceps beak are flat structures with narrow left and right directions and wide front and rear directions, and U-shaped tube drawing notches are arranged at the upper ends of the left forceps beak and the right forceps beak.

2. A tube drawing pliers as claimed in claim 1 wherein: the inner sides of the lower parts of the left clamp head and the right clamp head are provided with bosses or pits, and springs are arranged on the two bosses or pits.

3. A tube drawing pliers as claimed in claim 1 wherein: the inner sides of the upper ends of the left clamp handle and the right clamp handle are provided with bosses or pits, and springs are arranged on the two bosses or pits.

4. A pipe pulling pliers according to claim 2 or 3, characterized in that: the left clamp handle and the right clamp handle are arc-shaped.

5. The tube drawing pliers as defined in claim 4 wherein: the thicknesses of the left forceps beak and the right forceps beak in the left-right direction are 1.0-1.5 mm, and the thicknesses of the lower ends are 2.2-3.0 mm.