A crimping tool

Abstract

This utility model discloses a crimping pliers, including a plier head, with handles at both ends of the plier head. Each handle includes a fixed handle, a fixed rod fixed to the bottom of the fixed handle, and a movable handle slidably connected to the outer wall of the fixed rod. A circular groove is formed inside the fixed rod, and a movable rod is located inside the circular groove. Two stops are fixed to the outer wall of the movable rod, and two movable slots are formed on the outer wall of the circular groove. In this crimping pliers, rotating the rotating block causes the movable rod and stops to rotate, aligning the stops with the movable slots. Pulling the rotating block moves the movable rod and the movable handle. Upon release, the rotating block is released, and a torsion spring returns the movable rod and stops to their original positions. The stops then enter the annular groove, which blocks the stops, preventing displacement of the movable handle, increasing the handle length, and reducing the force required to clamp the handle.

Description

Technical Field

[0001] This utility model relates to the field of crimping pliers technology, specifically a type of crimping pliers. Background Technology

[0002] The needle-type manual multi-functional ratchet crimping pliers are mainly used for crimping conductors during the construction and maintenance of power lines. These pliers play a crucial role in the power industry, especially during basic line construction and maintenance, to crimp conductors and ensure circuit stability and safety.

[0003] However, the handles of existing crimping pliers are fixed and cannot be adjusted. This means that when crimping, even a short handle requires a lot of force to close the handle, increasing the fatigue of the user's fingers and palms. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a crimping pliers that solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crimping pliers, including a plier head, with plier handles at both ends of the plier head. Each plier handle includes a fixed plier handle, a fixed rod fixed to the bottom of the fixed plier handle, a movable plier handle slidably connected to the outer side wall of the fixed rod, a circular groove inside the fixed rod, a movable rod inside the circular groove, two stops fixed to the outer side wall of the movable rod, and two movable grooves opened on the outer side wall of the circular groove.

[0006] The top of the fixed rod has a circular opening, the inner wall of the circular groove has an annular groove, the inside of the movable clamp handle has a spring groove located below the fixed rod, the bottom end of the movable rod passes through the movable clamp handle and is rotatably connected to the movable clamp handle, a torsion spring is fixed to the outer wall of the movable rod, and the other end of the torsion spring is fixedly connected to the inner wall of the spring groove.

[0007] Preferably, the outer wall of the movable clamp is covered with a rubber layer, and the bottom end of the movable rod passes through the rubber layer.

[0008] Preferably, a rotating block is fixed to the bottom end of the movable rod.

[0009] Preferably, the outer side wall of the rotating block is provided with anti-slip stripes.

[0010] Preferably, two limiting blocks are fixed inside both the circular opening and the annular groove.

[0011] Preferably, the material of the rotating block is hard plastic.

[0012] Beneficial effects

[0013] This invention provides a crimping pliers. Compared with the prior art, it has the following advantages:

[0014] 1. This crimping pliers, by setting a fixed rod, a movable plier handle, a rotating block, a moving rod, a stop block, and a torsion spring, rotates the rotating block, causing the moving rod and the stop block to rotate, so that the stop block and the movable groove correspond. Then, the rotating block is pulled, and the rotating block moves the moving rod and the movable plier handle. After the movement is completed, the rotating block is released, and the torsion spring moves the moving rod and the stop block back to their original position. The stop block enters the interior of the annular groove, and the annular groove blocks the stop block. This can prevent the movable plier handle from shifting, increase the length of the plier handle, and reduce the force required to clamp the plier handle.

[0015] 2. This crimping pliers, by setting a limit block, so that when the rotating block is rotated, the rotating block rotates along with the moving rod and the stop block, and the stop block and the limit block abut against each other, so that the stop block and the movable groove correspond, making it easy for the stop block to enter the movable groove, which is simple and convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the left clamp handle in this utility model;

[0018] Figure 3 This is a cross-sectional view of the fixed clamp handle and the movable clamp handle in this utility model.

[0019] Figure 4 This is a cross-sectional view of the fixing rod in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the fixing rod in this utility model;

[0021] Figure 6 This is a schematic diagram of the internal structure of the fixing rod in this utility model.

[0022] In the diagram: 1. Rotating block; 2. Rubber layer; 3. Pliers handle; 301. Moving pliers handle; 302. Fixed pliers handle; 303. Fixed rod; 4. Pliers head; 5. Moving rod; 6. Torsion spring; 7. Spring groove; 8. Movable groove; 9. Stop block; 10. Circular groove; 11. Limiting block; 12. Circular opening; 13. Annular groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6 This utility model provides a technical solution: a crimping pliers, including a plier head 4, with plier handles 3 at both ends of the plier head 4. Each plier handle 3 includes a fixed plier handle 302, a fixed rod 303 fixed to the bottom of the fixed plier handle 302, and a movable plier handle 301 slidably connected to the outer wall of the fixed rod 303. A circular groove 10 is formed inside the fixed rod 303, and a movable rod 5 is provided inside the circular groove 10. Two stops 9 are fixed to the outer wall of the movable rod 5. Two movable grooves 8 are formed on the outer wall of the circular groove 10. A circular opening 12 is formed at the top of the fixed rod 303, and an annular groove 13 is formed on the inner wall of the circular groove 10. The movable plier handle 301 is located inside the fixed rod 302. A spring groove 7 is provided below the 3. The bottom end of the moving rod 5 passes through the moving clamp handle 301 and is rotatably connected to the moving clamp handle 301. A torsion spring 6 is fixed to the outer wall of the moving rod 5. The other end of the torsion spring 6 is fixedly connected to the inner wall of the spring groove 7. This allows the length of the clamp handle 3 to be adjusted. The outer wall of the moving clamp handle 301 is covered with a rubber layer 2. The bottom end of the moving rod 5 passes through the rubber layer 2, which insulates the clamp handle 3. A rotating block 1 is fixed to the bottom end of the moving rod 5, which facilitates the rotation of the moving rod 5. The outer wall of the rotating block 1 is provided with anti-slip stripes, which facilitates the rotation of the rotating block 1. The rotating block 1 is made of hard plastic, which has excellent insulation performance.

[0025] Furthermore, two limiting blocks 11 are fixed inside both the circular opening 12 and the annular groove 13, which facilitates the correspondence between the stop block 9 and the movable groove 8.

[0026] During operation, rotating block 1 rotates, causing moving rod 5 and stop block 9 to rotate. Stop block 9 abuts against limit block 11, thus aligning stop block 9 with movable groove 8. Then, rotating block 1 is pulled, causing moving rod 5 and movable clamp handle 301 to move. Stop block 9 moves inside movable groove 8. The movement is complete when stop block 9 abuts against the lower inner surface of annular groove 13. Afterward, rotating block 1 is released, and torsion spring 6 rotates moving rod 5 and stop block 9 back to their original positions. Stop block 9 and movable groove 8 are misaligned, and both the upper and lower inner surfaces of annular groove 13 block stop block 9. This restricts the movement of stop block 9, moving rod 5, and movable clamp handle 301, increases the length of clamp handle 3, and reduces the force required to clamp clamp handle 3.

[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crimping tool comprising a tool head (4), characterised in that: Both ends of the pliers head (4) are provided with pliers handles (3). Each pliers handle (3) includes a fixed pliers handle (302). A fixed rod (303) is fixed to the bottom of the fixed pliers handle (302). A movable pliers handle (301) is slidably connected to the outer side wall of the fixed rod (303). A circular groove (10) is opened inside the fixed rod (303). A movable rod (5) is provided inside the circular groove (10). Two stops (9) are fixed to the outer side wall of the movable rod (5). Two movable grooves (8) are opened on the outer side wall of the circular groove (10). The top of the fixed rod (303) has a circular opening (12), the inner sidewall of the circular groove (10) has an annular groove (13), the inside of the movable clamp (301) located below the fixed rod (303) has a spring groove (7), the bottom end of the movable rod (5) passes through the movable clamp (301) and is rotatably connected to the movable clamp (301), the outer sidewall of the movable rod (5) is fixed with a torsion spring (6), and the other end of the torsion spring (6) is fixedly connected to the inner sidewall of the spring groove (7).

2. The crimping tool of claim 1, wherein: The outer wall of the movable clamp (301) is covered with a rubber layer (2), and the bottom end of the movable rod (5) passes through the rubber layer (2).

3. The crimping tool of claim 2, wherein: The bottom end of the moving rod (5) is fixed with a rotating block (1).

4. The crimping tool of claim 3, wherein: The outer side wall of the rotating block (1) is provided with anti-slip stripes.

5. The crimping tool of claim 4, wherein: Two limiting blocks (11) are fixed inside both the circular opening (12) and the annular groove (13).

6. The crimping tool of claim 5, wherein: The material of the rotating block (1) is hard plastic.

Images