CN219562883U

CN219562883U - Pipe tongs

Info

Publication number: CN219562883U
Application number: CN202320506718.2U
Authority: CN
Inventors: 邓良
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-08-22
Anticipated expiration: 2033-03-16

Abstract

The utility model provides a pipe wrench which comprises a wrench arm, a movable jaw clamp body, a self-adaptive jaw clamp body and an adjusting piece, wherein the wrench arm comprises an integral gripping arm and a clamp body assembling end; the self-adaptive jaw clamp body comprises a clamping plate and a sliding plate, and the end face of the clamp body assembly end is provided with a chute with one side open; the clamping plate is fixed on the sliding plate; the sliding plate is in sliding connection with the sliding groove from the opening side; the movable jaw clamping body is connected to the clamping body assembling end in a sliding manner along the direction perpendicular to the plate surface of the clamping plate and is correspondingly arranged with the clamping plate to form a jaw; the adjusting piece is arranged on the assembly end of the clamp body to adjust the distance between the movable jaw clamp body and the clamping plate; the utility model discloses a pipe wrench, which belongs to the technical field of hardware tools, and can clamp a pipe in a forward rotation manner, loosen the pipe in a reverse rotation manner and be convenient to use.

Description

Pipe tongs

Technical Field

The utility model relates to a pipe wrench, and belongs to the technical field of hardware tools.

Background

At present, the opening size of the pipe wrench and the adjustment of the clamping force are all adjusted by nuts, and the pipe wrench has the following problems in use: the size of the opening of the pipe fitting is troublesome because the nut needs to be repeatedly adjusted to adjust the opening to a proper size, and the clamping force is insufficient and the pipe fitting is easy to slip.

In the prior art CN104690671A pipe wrench, the nut is firstly regulated to the diameter of a circular pipe, a handle is pressed down to enable a stress point to be meshed with the position with the largest diameter of the circular pipe, the stress point is increased to be meshed with the position with the largest diameter of the circular pipe, and the greater the force of the handle is pressed down, the more the stress point and the stress point are blocked. Because the clamped force points are different, the best use effect of the pipe wrench is achieved, but the pipe wrench cannot be rotated forward to clamp the pipe and rotated backward to loosen the pipe, so that the pipe wrench is inconvenient to use in a narrow place.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a pipe wrench which can clamp a pipe in a forward rotation manner and loosen the pipe in a reverse rotation manner, and is convenient to use.

The technical scheme for solving the technical problems is as follows: a pipe wrench comprises a wrench arm, a movable jaw clamp body, a self-adaptive jaw clamp body and an adjusting piece, wherein the wrench arm comprises an integral gripping arm and a clamp body assembling end; the self-adaptive jaw clamp body comprises a clamping plate and a sliding plate, and a chute with one side open is arranged on the end face of the clamp body assembly end; the clamping plate is fixed on the sliding plate; the sliding plate is connected in the sliding groove in a sliding way from the opening side; the movable jaw clamp body is connected to the clamp body assembly end in a sliding manner along the direction perpendicular to the plate surface of the clamping plate, and is correspondingly arranged with the clamping plate to form a jaw; the adjusting piece is arranged on the clamp body assembling end to adjust the distance between the movable jaw clamp body and the clamping plate; the inner bottom surface of the sliding groove is obliquely arranged from the opening side to the opposite inner side end to one side of the movable jaw clamping body, and the bottom of the sliding plate is an inclined surface matched with the inner bottom surface of the sliding groove.

The beneficial effects of the utility model are as follows: the distance between the movable jaw clamp body and the clamping plate is adjusted by the adjusting piece, so that the jaw formed by the movable jaw clamp body and the clamping plate clamps the pipe fitting, the clockwise working direction is clockwise, the holding arm is pulled clockwise to screw the pipe fitting, the clamping plate is subjected to the anticlockwise friction force exerted by the pipe fitting, the sliding plate slides from the opening end to the inner side end in the sliding groove, the inner bottom surface of the sliding groove is obliquely arranged from the opening side to the opposite inner side end to one side of the movable jaw clamp body, the clamping plate is close to the movable jaw clamp body, the jaw is reduced, and the clamping effect of the pipe fitting is improved; because the limit of pipe fitting mounted position can not make the arm of holding rotate a full circle under general circumstances, when reaching the biggest angle of arm of holding rotation back, the pipe fitting still need continue to screw up, only need anticlockwise rotation arm of holding, the clamping plate receives the clockwise frictional force that the pipe fitting applyed to make the slide in the spout from its inboard end to open end, the clamping plate keeps away from movable jaw clamp body, enlarges the jaw, loosens the pipe fitting, conveniently adjusts the position of arm of holding, continues to screw up the pipe fitting.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, a long hole is formed in the plate surface perpendicular to the sliding plate, the long hole is parallel to the inclined surface, insertion holes are formed in the two side plates of the long hole corresponding to the clamp body assembly end head, and a pin shaft penetrates through the two insertion holes and the long hole to limit the sliding plate to slide away from the sliding groove.

The beneficial effect of adopting the further scheme is that: the sliding plate can slide in the length range of the long hole, the size of the jaw can be adjusted in a self-adaptive mode, and the pipe fitting can be clamped and loosened conveniently.

Further, anti-slip saw teeth for contacting with the pipe fitting are arranged on the top of the clamping plate along the direction perpendicular to the sliding direction of the clamping plate.

Further, the clamp body assembling end is provided with a through hole along the direction parallel to the holding arm, and the movable jaw clamp body is connected to the through hole in a sliding way.

The beneficial effect of adopting the further scheme is that: the movable jaw clamp body is conveniently connected to the clamp body assembling end in a sliding way; the movable jaw clamp body is connected to the perforation in a sliding way and used for adjusting the jaw size, so that the pipe fittings with different pipe diameters can be conveniently processed.

Further, the movable jaw clamp body comprises a connecting arm and a compressing jaw clamp arm, the compressing jaw clamp arm is fixed at one end of the connecting arm and is correspondingly arranged with the clamping plate to form the jaw, the connecting arm is slidably connected in the through hole and is provided with threads on the outer wall of the connecting arm, the adjusting piece is an adjusting nut, a limiting groove for limiting the adjusting nut to move along the direction parallel to the holding arm is formed in the clamp body assembling end, and the adjusting nut is located in the limiting groove and is in threaded connection with the connecting arm.

The beneficial effect of adopting the further scheme is that: the adjusting nut is rotated, limited by the limiting groove and can only rotate in situ, the connecting arm is driven to slide along the direction of the holding arm, and the jaw formed by the clamping arm and the clamping plate of the clamping jaw is adjusted to adapt to pipe fittings with different pipe diameters.

Further, the inner side of the clamping arm of the pressing jaw is arc-shaped, and clamping saw teeth for clamping the pipe fitting are formed in the arc-shaped surface of the clamping arm.

The beneficial effect of adopting the further scheme is that: the arced surface is more attached to the pipe fitting, friction force is improved, and clamping effect when the pipe fitting is screwed up is improved.

Drawings

FIG. 1 is a schematic view of a pipe wrench according to the present utility model;

fig. 2 is a longitudinal sectional view of a pipe wrench provided by the utility model.

In the drawings, the list of components represented by the various numbers is as follows:

the clamping device comprises a 1-movable jaw clamping body, a 11-connecting arm, a 12-compressing jaw clamping arm, a 2-clamping arm, a 21-holding arm, a 22-clamping body assembling end, a 3-self-adapting jaw clamping body, a 31-clamping plate, a 32-sliding plate, a 4-adjusting piece, a 5-long hole, a 6-pin shaft, 7-anti-slip saw teeth, 8-sliding grooves, 9-clamping saw teeth and 10-jaws.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

The utility model aims to provide a pipe wrench which solves the problems existing in the prior art, can clamp a pipe in a forward rotation mode and loosen the pipe in a reverse rotation mode, and is convenient to use.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

The utility model provides a pipe wrench, which is shown in figures 1-2, and comprises a wrench arm 2, a movable jaw clamp body 1, a self-adaptive jaw clamp body 3 and an adjusting piece 4, wherein the wrench arm 2 comprises an integral gripping arm 21 and a clamp body assembling end 22; the self-adaptive jaw clamp body 3 comprises a clamping plate 31 and a sliding plate 32, and the end face of the clamp body assembling end 22 is provided with a chute 8 with one side open; the clamping plate 31 is fixed on the slide plate 32; the sliding plate 32 is slidingly connected in the sliding groove 8 from the opening side; the movable jaw clamping body 1 is connected to the clamping body assembling end 22 in a sliding manner along the direction perpendicular to the plate surface of the clamping plate 31 and is correspondingly arranged with the clamping plate 31 to form a jaw 10; the adjusting piece 4 is arranged on the clamp body assembling end 22 to adjust the distance between the movable jaw clamp body 1 and the clamping plate 31; the inner bottom surface of the chute 8 is obliquely arranged from the opening side to the opposite inner side end to one side of the movable jaw clamping body 1, and the bottom of the sliding plate 32 is an inclined surface matched with the inner bottom surface of the chute 8.

The utility model provides a pipe wrench, which utilizes an adjusting piece 4 to adjust the distance between a movable jaw clamp body 1 and a clamping plate 31, so that a jaw 10 formed by the movable jaw clamp body 1 and the clamping plate 31 clamps a pipe fitting, a clockwise operation direction is a clockwise direction, a holding arm 21 is pulled clockwise to screw the pipe fitting tightly, the clamping plate 31 is subjected to the friction force applied by the pipe fitting in a anticlockwise direction, a sliding plate 32 slides in a sliding groove 8 from an opening end to an inner side end, the inner bottom surface of the sliding groove 8 is obliquely arranged from the opening side to the opposite inner side end to one side of the movable jaw clamp body 1, so that the clamping plate 31 is close to the movable jaw clamp body 1, the jaw 10 is reduced, and the clamping effect of the pipe fitting is improved; because the pipe fitting installation position is limited, the holding arm 21 is generally not rotated for a whole circle, when the maximum rotation angle of the holding arm 21 is reached, the pipe fitting still needs to be continuously screwed down, only the holding arm 21 is required to be rotated anticlockwise, the clamping plate 31 is subjected to the clockwise friction force exerted by the pipe fitting, so that the sliding plate 32 slides from the inner side end to the opening end in the sliding groove 8, the clamping plate 31 is far away from the movable jaw clamp body 1, the jaw 10 is enlarged, the pipe fitting is loosened, the position of the holding arm 21 is conveniently adjusted, and the pipe fitting is continuously screwed down.

In a specific embodiment of the present utility model, the plate surface of the vertical sliding plate 32 is provided with a long hole 5, the long hole 5 is parallel to the inclined plane, the two side plates of the clamp body assembly end 22 corresponding to the long hole 5 are provided with insertion holes, and the pin shaft 6 passes through the two insertion holes and the long hole 5 to limit the sliding plate 32 to slide away from the sliding groove 8.

The sliding plate 32 can slide in the length range of the long hole 5, and the size of the jaw 10 can be adjusted adaptively, so that the pipe fitting can be clamped and loosened conveniently.

In an embodiment of the utility model, the top of the clamping plate 31 is provided with anti-slip serrations 7 for contact with the pipe elements in a direction perpendicular to the sliding direction.

In one embodiment of the present utility model, the clip body mounting end 22 is provided with a through hole along the direction parallel to the holding arm 21, and the movable jaw clip body 1 is slidably connected to the through hole.

The movable jaw clamp body 1 is conveniently connected to the clamp body assembling end 22 in a sliding way; the movable jaw clamp body 1 is connected to the perforation in a sliding way and used for adjusting the size of the jaw 10, so that the pipe fittings with different pipe diameters can be conveniently processed.

In a specific embodiment of the present utility model, the movable jaw clamping body 1 includes a connecting arm 11 and a compressing jaw clamping arm 12, the compressing jaw clamping arm 12 is fixed at one end of the connecting arm 11 and is arranged corresponding to the clamping plate 31 to form the jaw 10, the connecting arm 11 is slidably connected in the through hole, the outer wall of the connecting arm is provided with threads, the adjusting member 4 is an adjusting nut, the clamping body assembling end 22 is provided with a limiting groove for limiting the adjusting nut to move along the direction parallel to the holding arm 21, and the adjusting nut is located in the limiting groove and is in screwed connection with the connecting arm 11.

The adjusting nut is rotated, limited by the limiting groove, and can only rotate in situ, so that the connecting arm 11 is driven to slide along the direction of the holding arm 21, and the size of the jaw 10 formed by the clamping jaw arm 12 and the clamping plate 31 is adjusted to adapt to pipes with different pipe diameters.

In one embodiment of the utility model, the inner side of the clamping arm 12 of the pressing jaw is arc-shaped, and the arc-shaped surface of the clamping arm is provided with a clamping saw tooth 9 for clamping the pipe fitting.

The arced surface is more attached to the pipe fitting, friction force is improved, and clamping effect when the pipe fitting is screwed up is improved.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The pipe wrench is characterized by comprising a wrench arm (2), a movable jaw clamp body (1), a self-adaptive jaw clamp body (3) and an adjusting piece (4), wherein the wrench arm (2) comprises an integral gripping arm (21) and a clamp body assembling end (22);

the self-adaptive jaw clamp body (3) comprises a clamping plate (31) and a sliding plate (32), and a chute (8) with one side open is arranged on the end face of the clamp body assembly end (22); the clamping plate (31) is fixed on the sliding plate (32); the sliding plate (32) is in sliding connection in the sliding groove (8) from the opening side;

the movable jaw clamp body (1) is connected to the clamp body assembly end (22) in a sliding manner along the direction perpendicular to the plate surface of the clamping plate (31) and is correspondingly arranged with the clamping plate (31) to form a jaw (10); the adjusting piece (4) is arranged on the clamp body assembling end (22) to adjust the distance between the movable jaw clamp body (1) and the clamping plate (31); the inner bottom surface of the sliding groove (8) is obliquely arranged from the opening side to the opposite inner side end to one side of the movable jaw clamping body (1), and the bottom of the sliding plate (32) is an inclined surface matched with the inner bottom surface of the sliding groove (8).

2. A pipe wrench as claimed in claim 1, wherein a long hole (5) is formed perpendicular to the plate surface of the sliding plate (32), the long hole (5) is parallel to the inclined surface, the clamp body assembly end (22) is provided with insertion holes on two side plates corresponding to the long hole (5), and the pin shaft (6) passes through the two insertion holes and the long hole (5) to limit the sliding plate (32) to slide away from the sliding groove (8).

3. A pipe wrench as claimed in claim 2, wherein the top of the clamping plate (31) is provided with anti-slip serrations (7) for contact with the pipe in a direction perpendicular to the sliding direction thereof.

4. A pipe wrench as claimed in claim 2, wherein said clamp body fitting end (22) is provided with perforations in a direction parallel to said gripping arms (21), said movable jaw clamp body (1) being slidably connected to said perforations.

5. The pipe wrench as claimed in claim 4, wherein the movable jaw clamping body (1) comprises a connecting arm (11) and a compressing jaw clamping arm (12), the compressing jaw clamping arm (12) is fixed at one end of the connecting arm (11) and is correspondingly arranged with the clamping plate (31) to form the jaw (10), the connecting arm (11) is slidably connected in the through hole and is provided with threads on the outer wall thereof, the adjusting piece (4) is an adjusting nut, the clamp body assembling end (22) is provided with a limiting groove for limiting the adjusting nut to move along the direction parallel to the holding arm (21), and the adjusting nut is positioned in the limiting groove and is in threaded connection with the connecting arm (11).

6. A pipe wrench as claimed in claim 5, wherein the inner side of the clamping arm (12) of the clamping jaw is arc-shaped, and the arc-shaped surface of the clamping arm is provided with clamping saw teeth (9) for clamping the pipe.