One-handed pipe wrench for easy operation in tight spaces

Abstract

The utility model discloses a single hand pipe wrench convenient to operate in narrow space, including first clamp, second clamp, still include pipe wrench, the pipe wrench includes pressing end and sliding connection end, the end of pressing end is equipped with pipe dismantling part, the sliding connection end with one end of second clamp elastic slide type connection and pipe dismantling part extends to the outside of clamping portion, when target pipe is clamped by first clamp and second clamp, can press pressing end linkage and press down pipe dismantling part to target pipe head and carry out the dismantling, this pipe wrench is through with the original horizontal or transverse handheld operation mode changes longitudinal or vertical operation, cooperation pipe wrench, through pressing the pressing end linkage of pipe wrench and push out the pipe dismantling part of pipe wrench, can complete the pipe dismantling work in narrow space, because its pipe wrench and one of clamp (second clamp) sliding connection cooperation, through holding two clamp with palm, can use thumb and press pipe wrench, thereby can complete the pipe dismantling operation with single hand.

Description

Technical Field

[0001] This utility model relates to the field of pliers technology, and in particular to a single-handed pipe-removing pliers that is easy to operate in narrow spaces. Background Technology

[0002] Pipe wrenches are a common tool used in daily wiring and piping operations. They are often used to remove joints or pipes. Currently, most commonly used pipe wrenches are horizontal or transverse, which require a relatively wide space to operate and often require the use of both hands to complete the pipe removal work. When working in a narrow space, the wrenches cannot be operated smoothly due to the limited space. In traditional operations, pipe removal work in such narrow spaces often requires the assistance of other tools. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a single-handed pipe wrench that is easy to operate in narrow spaces, so as to solve the technical problems mentioned in the background art.

[0004] To solve the technical problem, this utility model adopts the following technical solution: A single-handed pipe-removing wrench for easy operation in confined spaces includes a first clamp and a second clamp. The first clamp and the second clamp are connected by a cross-rotational pin. Both the first clamp and the second clamp have a clamping part at their ends. The wrench also includes a pipe-removing tool, which includes a pressing end and a sliding connecting end. The pressing end has a pipe-removing part at its end. The sliding connecting end is elastically slidably connected to one end of the second clamp, and the pipe-removing part extends to the outside of the clamping part. When the target pipe is clamped by the first clamp and the second clamp, the pressing end can be pressed down to release the pipe head.

[0005] Specifically, the second clamp is connected to the sliding connection end via a sliding linkage mechanism. The sliding linkage mechanism includes a first slide groove, a second slide groove, a first slide shaft, and a second slide shaft. The first slide groove is located on the side of the second clamp near the clamping part, and the second slide groove is located on the side of the pipe disassembly wrench near the pin. One end of the first slide shaft is fixedly installed on one side of the sliding connection end, and the other end extends into the first slide groove and slides with the first slide groove as the travel limit. One end of the second slide shaft is fixedly installed on the side of the second clamp near the pin, and the other end extends into the second slide groove. When the second slide groove slides in linkage with the pipe disassembly wrench, the second slide shaft serves as the travel limit shaft. A return spring is connected between the first slide shaft and the second slide shaft.

[0006] Specifically, the clamping part is a clamping structure formed by vertically folding the end of the first clamp or the second clamp. The clamping part includes a first clamping part and a second clamping part. The first clamping part is provided with a first clamping groove at the position facing the second clamping part. The second clamping part is provided with a second clamping groove at the position corresponding to the first clamping groove. The pipe disassembly part is a pipe disassembly structure formed by vertically folding the end of the pipe disassembly pliers. The pipe disassembly part is provided with a third clamping groove at the position corresponding to the second clamping groove.

[0007] Specifically, the end of the pressing end is provided with a pressing handle, which is perpendicular to the main body of the pressing end and faces the same direction as the first clamp and the second clamp.

[0008] Specifically, the first clamp is provided with a first hinge seat, and the second clamp is provided with a second hinge seat. A pin passes through the first hinge seat and the second hinge seat. The first clamp and the second clamp are provided with a return spring near the inner side of the hand grip. The inner end face of the first hinge seat is provided with a first limiting protrusion, and the inner end face of the second hinge seat is provided with a second limiting protrusion. The opening stroke of the second clamp is limited by the first limiting protrusion, and the opening stroke of the first clamp is limited by the second limiting protrusion.

[0009] Specifically, the first clamp has a locking component on one side, which includes a rotating shaft, a lever, and a locking part. The second clamp has a locking port on one side of its second hinge seat. When the first clamp and the second clamp are clamped, the lever is turned to rotate the locking component to the locking port position, and the locking part engages with the locking port to lock the clamp, thus preventing the first clamp and the second clamp from opening automatically.

[0010] Specifically, one end of the locking member is provided with an anti-rotation groove, and the first clamp is provided with an anti-rotation protrusion at the position corresponding to the anti-rotation groove.

[0011] Specifically, the diameter of the third clamping groove is smaller than the diameter of the first clamping groove and the second clamping groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This pipe disassembly wrench changes the original horizontal or transverse hand-held operation mode to vertical or longitudinal operation. When used with the pipe disassembly wrench, the pipe disassembly part of the pipe disassembly wrench is pushed out by pressing the pressing end of the pipe disassembly wrench, which can complete the pipe disassembly work in narrow spaces. Because the pipe-removing wrench is slidably connected to one of the clamps (the second clamp), the pipe-removing wrench can be pressed with the thumb after the two clamps are held in the hand, thus allowing the pipe-removing operation to be completed with one hand. Attached Figure Description

[0013] Figure 1 : This is a front view of the overall structure of this utility model (first and second clamps open); Figure 2: This is a front perspective view of the overall structure of this utility model (with the first and second clamps open); Figure 3 : This is a perspective view of the rear of the overall structure of this utility model (with the first and second clamps open); Figure 4 This is one of the exploded views of the overall structure of this utility model; Figure 5 This is the second exploded view of the overall structure of this utility model; Figure 6 This is a side view of the pipe wrench being pushed down in this utility model. Figure 7 : This is a schematic diagram of the pipe-removing wrench being pushed down in this utility model (three-dimensional angle 1); Figure 8 : This is a schematic diagram of the pipe-removing wrench being pushed down in this utility model (three-dimensional angle 2); Figure 9 : This is a schematic diagram of the pipe-removing wrench being pushed down in this utility model (front view). Figure 10 This is a schematic diagram of the pipe-removing wrench being pushed down in this utility model (rear view angle), with the upper locking component locked. In the figure: First clamp 1, Second clamp 2, Pin 3, Clamping part 1B, Handheld part 1A, Pipe disassembly wrench 4, Pressing end 41, Sliding connection end 42, Pipe disassembly part 43, Sliding linkage mechanism 5, First slide groove 51, Second slide groove 52, First slide shaft 53, Second slide shaft 54, Return spring 55, First clamping part 11, Second clamping part 21, First clamping groove 111, Second clamping groove 211, Third clamping groove 431, Pressing handle 411, First hinge seat 12, Second hinge seat 22, Return spring 13, First limiting protrusion 121, Second limiting protrusion 221, Locking part 6, Rotating shaft 61, Wrench part 62, Engaging part 63, Engaging opening 64, Anti-rotation groove 65, Anti-rotation protrusion 66. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0015] refer to Figures 1 to 10 : This utility model discloses a single-handed pipe dismantling wrench 4 that is convenient for operation in confined spaces. It includes a first clamp 1 and a second clamp 2, which are connected by a pivot pin 3 in a cross-rotational manner. The front ends of the first clamp 1 and the second clamp 2 are handheld parts 1A, and the rear ends are clamping parts 1B. The clamping and releasing actions of the pipe dismantling wrench 4 are performed by gripping the handheld part 1A. To enable pipe dismantling work in the longitudinal or vertical operating direction and to facilitate pipe dismantling operations in confined spaces, this patent also includes a pipe dismantling wrench 4. The pipe dismantling wrench 4 is as long and narrow as the first clamp 1 and the second clamp 2, and its height is approximately equal. The pipe dismantling wrench 4 includes a pressing end 41 and a sliding connecting end 4. 2. The pressing end 41 is located on one side of the handheld part 1A and has a pressing handle 411 that can be pressed downward. The end of the sliding connection end 42 is provided with a tube disassembly part 43. The sliding connection end 42 is slidably connected to one end of the second clamp 2. In order to reset the tube disassembly pliers 4, a reset spring 55 is also provided at the connection between the sliding connection end 42 and the second clamp 2 for reset. Thus, the sliding connection end 42 and the second clamp 2 are elastically slidably connected. In order to facilitate tube disassembly, the tube disassembly part 43 extends to the outside of the clamping part 1B. When the target tube is clamped by the first clamp 1 and the second clamp 2, the pressing end 41 can be pressed down in conjunction with the tube disassembly part 43 to remove the target tube head.

[0016] Specifically, refer to Figure 1-5 The second clamp 2 is connected to the sliding connection end 42 via a sliding linkage mechanism 5. The sliding linkage mechanism 5 includes a first sliding groove 51, a second sliding groove 52, a first sliding shaft 53, and a second sliding shaft 54. The first sliding groove 51 is located on the side of the second clamp 2 near the clamping part 1B, and the second sliding groove 52 is located on the side of the pipe disassembly pliers 4 near the pin 3. One end of the first sliding shaft 53 is fixedly installed on one side of the sliding connection end 42 of the pipe disassembly pliers 4, and the other end extends into the first sliding groove 51 and slides with the first sliding groove 51 as the stroke limit. One end of the second sliding shaft 54 ​​is fixedly installed on the side of the second clamp 2 near the pin 3, and the other end extends into the second sliding groove 52. When the second sliding groove 52 slides in linkage with the pipe disassembly pliers 4, the second sliding shaft 54 ​​serves as the stroke limit axis. A reset spring 55 is connected between the first sliding shaft 53 and the second sliding shaft 54.

[0017] Specifically, refer to Figure 4The clamping part 1B is a clamping structure formed by vertically folding the end of the first clamp 1 or the second clamp 2. The clamping part 1B includes a first clamping part 11 and a second clamping part 21. The first clamping part 11 is provided with a first clamping groove 111 facing the second clamping part 21. The second clamping part 21 is provided with a second clamping groove 211 corresponding to the first clamping groove 111. The pipe disassembly part 43 is a pipe disassembly structure formed by vertically folding the end of the pipe disassembly pliers 4. The pipe disassembly part 43 is provided with a third clamping groove 431 corresponding to the second clamping groove 211. Specifically, the end of the pressing end is provided with a pressing handle 411. The pressing handle 411 is perpendicular to the main body of the pressing end 41 and faces the same direction as the first clamping part 11 and the second clamping part 21. Preferably, the first clamping part 11 and the second clamping part 21 have arc surface features, so that the first clamping part 11 and the second clamping part 21 form a semi-circular structure when closed, so as to minimize the overall structural outline and cooperate with narrow space operations.

[0018] When operating, refer to Figure 1 and Figure 10 Taking right-hand operation as an example, the right hand and fingers grasp the handle 1A of the first clamp 1 and the second clamp 2, align it with the pipe body of the target pipeline, and clamp the end of the target pipe body away from the connector through the first clamping groove 111 and the second clamping groove 211 of the two clamping parts 1B. At the same time, the third clamping groove 431 of the pipe disassembly pliers 4 simultaneously clamps the end of the pipe body near the connector. Then, the thumb presses down on the pressing handle 411 of the pipe disassembly pliers 4. When the pipe disassembly pliers 4 is pushed down, the sliding connection end 42 of the pipe disassembly pliers 4 slides downward parallel to the side of the working end of the second clamp 2. Specifically, the first sliding shaft 53 on the sliding connection end 42 slides along the first sliding groove 511. 1. Slide downwards while pulling the reset spring 55 to stretch. At the same time, the second groove 52 on the second clamp 2 slides along the second sliding shaft 54. When the pipe disassembly clamp 4 is pushed to the bottom, that is, when the first sliding shaft 53 reaches the bottom of the first groove 51 or the top of the second groove 52 and abuts against the second sliding shaft 54, the pipe disassembly part 43 of the pipe disassembly clamp 4 is pushed to the outermost side. Of course, at this time, the target pipe joint has been pushed out, and the pipe disassembly work has been completed. When the work of removing the pipe joint is completed, release the thumb. Relying on the reset force of the reset spring 55, the pipe disassembly clamp 4 slides in the opposite direction and returns to its original state.

[0019] Specifically, refer to Figure 4 and Figure 5The first clamp 1 is provided with a first hinge seat 12, and the second clamp 2 is provided with a second hinge seat 22. A pin 3 passes through the first hinge seat 12 and the second hinge seat 22. A return spring 13 is provided on the inner side of the first clamp 1 and the second clamp 2 near the handle portion 1A. A first limiting protrusion 121 is provided on the inner end face of the first hinge seat 12, and a second limiting protrusion 221 is provided on the inner end face of the second hinge seat 22. The opening stroke of the second clamp 2 is limited by the first limiting protrusion 121, and the opening stroke of the first clamp 1 is limited by the second limiting protrusion 221. As a feature of the prior art, the first hinge seat 12 is a flat seat body similar to a circle, which has a slightly concave characteristic towards the front. The second hinge seat 22 is axially symmetrical to the first hinge seat 12, and has a slightly concave characteristic towards the rear. This allows the hand-held part 1A and the clamping part 1B of the first clamp 1 and the second clamp 2 to be kept on the same horizontal line when the two hinge seats are joined. This ensures that even if the thickness of the two hinge seats is increased by the pin 3 passing through, the clamping stability of this pipe-disassembling wrench 4 will not be affected.

[0020] Specifically, refer to Figure 3 , Figure 5 and Figure 10 To further facilitate one-handed operation or for ease of carrying, the first clamp 1 and the second clamp 2 are designed to remain in place. In the first application scenario, when the first clamping groove 111 of the first clamp 1 and the second clamping groove 211 of the second clamp 2 clamp the target tube, the normal procedure is to hold both clamps continuously with one hand, preventing them from loosening. If they loosen, the tube disassembly cannot be completed. Here, a locking element 6 is provided on one side of the first clamp 1. The locking element 6 includes a rotating shaft 61, a lever part 62, and a locking part 63. A locking port 64 is provided on one side of the second hinge seat 22 of the second clamp 2. When the first clamp 1 and the second clamp 2... When clamping, the locking part 6 rotates to the locking position 64 by turning the lever 62, and then the locking part 63 engages with the locking position 64 to lock, preventing the first clamp 1 and the second clamp 2 from opening automatically. Preferably, the locking position 64 has multiple sub-clamps, which can be used to lock the first clamp 1 and the second clamp 2 at different clamping angles. In this way, after the two clamps clamp the target pipe body, the two clamps can be locked by the locking part 6, and then the pipe disassembly wrench 4 can be operated more easily. For the second application scenario, it is even simpler. When it is necessary to carry or package for transportation, the locking part 6 can be used to lock the two clamps so that they cannot open outward.

[0021] Specifically, in order to prevent the locking member 6 from rotating when not in use, one end of the locking member 6 is provided with an anti-rotation groove 65, and the first clamp 1 is provided with an anti-rotation protrusion 66 at the position corresponding to the anti-rotation groove 65. In other optional embodiments, the anti-rotation groove 65 and the anti-rotation protrusion 66 can be replaced with magnetic components.

[0022] Specifically, the diameter of the third clamping groove 431 is smaller than that of the first clamping groove 111 and the second clamping groove 211. The third clamping groove 431 is used to clamp the pipe body, and its diameter is also smaller than that of the connector. The first clamping groove 111 and the second clamping groove 211 are used to clamp the pipe body. In other preferred embodiments, the first clamping groove 111, the second clamping groove 211 and the third clamping groove 431 are all provided with clamping openings of different diameters to adapt to the operation of pipes of different sizes. Of course, in order to adapt to operation in narrow spaces, this pipe wrench 4 is often designed for dedicated pipes.

[0023] Understandably, horizontal or lateral operation is similar to how you would normally hold scissors, with the clamping end located at the front of the palm, which can only be done in relatively spacious areas. Vertical or longitudinal operation, on the other hand, involves the clamping end facing the back of the palm or towards the forearm.

[0024] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A single-handed pipe-removing wrench for easy operation in confined spaces, comprising a first clamp and a second clamp, wherein the first clamp and the second clamp are connected by a cross-rotational pin, and both the first clamp and the second clamp are provided with a clamping portion at their ends, characterized in that: It also includes a pipe-removing wrench, which includes a pressing end and a sliding connection end. The pressing end has a pipe-removing part at its end. The sliding connection end is elastically slidably connected to one end of the second clamp, and the pipe-removing part extends to the outside of the clamping part. When the target pipe is clamped by the first clamp and the second clamp, the pressing end can be pressed down in conjunction with the pipe-removing part to remove the target pipe head.

2. The single-handed pipe-removing wrench as described in claim 1, which is convenient for operation in confined spaces, is characterized in that: The second clamp is connected to the sliding connection end via a sliding linkage mechanism. The sliding linkage mechanism includes a first slide groove, a second slide groove, a first slide shaft, and a second slide shaft. The first slide groove is located on the side of the second clamp near the clamping part, and the second slide groove is located on the side of the pipe disassembly wrench near the pin. One end of the first slide shaft is fixedly installed on one side of the sliding connection end, and the other end extends into the first slide groove and slides with the first slide groove as the stroke limit. One end of the second slide shaft is fixedly installed on the side of the second clamp near the pin, and the other end extends into the second slide groove. When the second slide groove slides in linkage with the pipe disassembly wrench, the second slide shaft serves as the stroke limit shaft. A return spring is connected between the first slide shaft and the second slide shaft.

3. A single-handed pipe-removing wrench as described in claim 2, characterized in that: The clamping part is a clamping structure formed by vertically folding the end of the first clamp or the second clamp. The clamping part includes a first clamping part and a second clamping part. The first clamping part is provided with a first clamping groove at the position facing the second clamping part. The second clamping part is provided with a second clamping groove at the position corresponding to the first clamping groove. The pipe disassembly part is a pipe disassembly structure formed by vertically folding the end of the pipe disassembly pliers. The pipe disassembly part is provided with a third clamping groove at the position corresponding to the second clamping groove.

4. The single-handed pipe-removing wrench as described in claim 1, which is convenient for operation in confined spaces, is characterized in that: The end of the pressing end is provided with a pressing handle, which is perpendicular to the main body of the pressing end and faces the same direction as the first clamp and the second clamp.

5. A single-handed pipe-removing wrench as described in claim 3, characterized in that: The first clamp is provided with a first hinge seat, and the second clamp is provided with a second hinge seat. A pin passes through the first hinge seat and the second hinge seat. The first clamp and the second clamp are provided with a return spring near the inner side of the hand grip. The inner end face of the first hinge seat is provided with a first limiting protrusion, and the inner end face of the second hinge seat is provided with a second limiting protrusion. The opening stroke of the second clamp is limited by the first limiting protrusion, and the opening stroke of the first clamp is limited by the second limiting protrusion.

6. A single-handed pipe-removing wrench as described in claim 5, characterized in that: The first clamp has a locking component on one side, which includes a rotating shaft, a lever, and a locking part. The second clamp has a locking port on one side of its second hinge seat. When the first clamp and the second clamp are clamped, the lever is turned to rotate the locking component to the locking port position, and the locking part engages with the locking port to lock the clamp, thus preventing the first clamp and the second clamp from opening automatically.

7. A single-handed pipe-removing wrench as described in claim 6, characterized in that: One end of the locking member is also provided with an anti-rotation groove, and the first clamp is provided with an anti-rotation protrusion at the position corresponding to the anti-rotation groove.

8. A single-handed pipe-removing wrench as described in claim 3, characterized in that: The diameter of the third clamping groove is smaller than the diameter of the first clamping groove and the second clamping groove.

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