Pliers with detachable jaws

By designing a detachable jaw mechanism on the carp pliers, the problem of having to replace the entire pliers after the jaws wear out is solved, enabling the jaws to be detachably replaced and improving the stability of use, thus reducing the cost of use.

CN224526923UActive Publication Date: 2026-07-21LINAN ZHENFA TOOLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LINAN ZHENFA TOOLS CO LTD
Filing Date
2025-06-06
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing carp pliers require complete replacement after the teeth wear down, resulting in high operating costs.

Method used

The design incorporates a detachable clamping mechanism, which combines a cross-hinged lever arm mechanism with clamping tooth mounting slots, a rotating shaft, and a locking buckle to achieve both detachable and stable connection of the clamping teeth.

Benefits of technology

The pliers teeth are detachable and replaceable, reducing usage costs and improving the stability and applicability of the pliers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of pincers tooth's carp forceps convenient to disassemble, including force arm mechanism, the quantity of force arm mechanism is two, two the force arm mechanism is mutually crossed and is hinged together;End of each force arm mechanism is provided with detachable pincers tooth mechanism;After force arm mechanism and pincers tooth mechanism are assembled, pincers tooth mechanism is limited. When using, by setting detachable pincers tooth mechanism in the end of force arm mechanism, when pincers tooth mechanism is used and damaged, pincers tooth mechanism can be disassembled and replaced, to reduce the effect of use cost. By setting pincers tooth mounting groove in the side of two force arm handles close to each other, so that the clamping direction of pincers tooth mounting groove and force arm handle is perpendicular, after pincers head is installed inside pincers tooth mounting groove, pincers head will not move due to clamping action, and the bottom of pincers head and the top of force arm handle overlap, so that when pincers head is stressed, force arm handle will resist and limit pincers head, to improve the stress intensity of pincers head.
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Description

Technical Field

[0001] This utility model relates to the field of carp pliers technology, and in particular to a carp pliers with easily detachable pliers teeth. Background Technology

[0002] Carp pliers are named for their resemblance to carp. Their key feature is the adjustable jaw width, which can be widened or reduced. They are primarily used for gripping round parts and can also replace a wrench for tightening small nuts and bolts.

[0003] During use, carp pliers are designed with teeth to increase friction and improve gripping stability. However, as carp pliers are used, these teeth gradually wear down, leading to reduced gripping stability. At this point, the entire carp pliers need to be replaced, resulting in relatively high operating costs.

[0004] Therefore, this application proposes a carp pliers with easily detachable jaws, allowing the jaws to be replaced and reducing tool usage costs. Utility Model Content

[0005] In view of the shortcomings of the prior art mentioned above, the purpose of this utility model is to provide a carp pliers with easy-to-disassemble pliers teeth, so as to solve the problem mentioned in the prior art that all pliers teeth need to be replaced after they are damaged.

[0006] To achieve the above and other related objectives, this utility model provides a carp pliers with easy-to-disassemble pliers teeth, including a lever arm mechanism, wherein the number of the lever arm mechanism is two, and the two lever arm mechanisms are hinged together in a cross manner.

[0007] Each of the lever arm mechanisms is provided with a separable clamping tooth mechanism at its end;

[0008] After the lever arm mechanism and the clamping tooth mechanism are assembled, the clamping tooth mechanism is limited.

[0009] Preferably, the lever arm mechanism includes a lever arm handle, the end of which is provided with a pincer tooth mounting groove, and the upper opening of the pincer tooth mounting groove is provided with an anti-slip protrusion.

[0010] The clamping mechanism includes a clamping head, and a connecting slider is provided at the bottom of the clamping head. The connecting slider is inserted into the inside of the clamping tooth mounting groove, and the connection between the clamping head and the connecting slider is limited by an anti-slip protrusion.

[0011] Preferably, the clamp tooth mounting groove is disposed on the face of the two lever arm handles that are close to each other, and the bottom of the clamp head overlaps with the top of the lever arm handle.

[0012] Preferably, a connecting baffle is provided at one end of the clamp tooth mounting groove.

[0013] Preferably, the connecting baffle is provided with a rotating shaft coaxial with the clamp tooth mounting groove, and the rotating shaft is rotatable;

[0014] The connecting slider has a through hole at its axis, the inner diameter of which is equal to the diameter of the rotating shaft, and the rotating shaft passes through the through hole.

[0015] Preferably, the outer surface of the rotating shaft is provided with a locking buckle, and the end of the rotating shaft is provided with a rotating groove;

[0016] The edge of the through hole is provided with a sliding groove that extends through the through hole, and the inner wall of the through hole is provided with a locking groove. The sliding groove and the locking groove are connected, and the locking groove is an annular groove.

[0017] Preferably, the width and depth of the slide groove are equal to the width and height of the locking buckle;

[0018] The width and depth of the locking groove are equal to the width and depth of the locking buckle.

[0019] Preferably, the two clamping mechanisms can be mounted in opposite directions at the ends of the lever arm mechanism.

[0020] As described above, the carp pliers of this utility model, which facilitate the disassembly of the pliers teeth, have the following beneficial effects:

[0021] 1. This utility model provides a detachable clamping tooth mechanism at the end of the lever arm mechanism. When the clamping tooth mechanism is damaged, it can be disassembled and replaced, thereby reducing the cost of use.

[0022] 2. This utility model sets the jaw mounting groove on the side of the two lever handles that are close to each other, so that the jaw mounting groove is perpendicular to the clamping direction of the lever handle. After the jaw head is installed in the jaw mounting groove, the jaw head will not move due to the clamping action. Moreover, the bottom of the jaw head overlaps with the top of the lever handle. Therefore, when the jaw head is subjected to force, the lever handle will resist and limit the jaw head, which can improve the force resistance of the jaw head.

[0023] 3. This utility model provides a rotating shaft inside the pliers tooth mounting groove and a locking buckle on the outer surface of the rotating shaft. At the same time, a through hole is provided in the axis of the connecting slider, and a slide groove and a locking groove are respectively provided inside the through hole. When the locking buckle and the locking groove coincide, the locking buckle and the slide groove can be misaligned by rotating the rotating shaft, thereby locking the pliers head and preventing the pliers head from falling off during use.

[0024] 4. This utility model can support and clamp objects from within the object's cavity by reversing the installation of the pliers head at the end of the lever arm handle, thereby expanding its applicability.

[0025] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description

[0026] Figure 1 The diagram shown is a structural schematic of this utility model.

[0027] Figure 2 The diagram shown is an exploded view of this utility model.

[0028] Figure 3 This utility model is shown. Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0029] Figure 4 The diagram shown is a structural schematic of the clamping mechanism of this utility model.

[0030] Figure 5 This utility model is shown. Figure 4 Enlarged schematic diagram of the structure at point B.

[0031] Figure 6 The diagram shown is a structural schematic of the second embodiment of the clamp of this utility model.

[0032] Component designation explanation:

[0033] 1. Lever arm mechanism; 11. Lever arm handle; 12. Pliers tooth mounting groove; 13. Anti-slip protrusion; 14. Connecting baffle; 15. Rotating shaft; 16. Locking buckle; 17. Rotating groove;

[0034] 2. Pliers mechanism; 21. Pliers head; 22. Connecting slider; 23. Through hole; 24. Slide groove; 25. Locking groove. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0036] Please see Figures 1 to 6It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0037] like Figures 1-2 As shown, this utility model provides a carp pliers with easily detachable jaws, including two lever arms 1. The two lever arms 1 are hinged together to form the basic shape of the pliers. Each lever arm 1 has a separable jaw mechanism 2 at its end. The opposing surfaces of the jaw mechanisms 2 are provided with teeth to increase friction during clamping. The jaw mechanism 2 is separable from the lever arm 1, allowing for individual replacement of the jaw mechanism 2 if its teeth or the jaw mechanism 2 itself is damaged, thus reducing tool usage costs. After assembly, the jaw mechanism 2 is positioned to prevent it from separating from the lever arm 1 during use.

[0038] like Figures 2-5 As shown, in some embodiments, the lever arm mechanism 1 of this utility model includes a lever arm handle 11, and the end of the lever arm handle 11 is provided with a jaw tooth mounting groove 12 for mounting a jaw tooth mechanism 2. The upper opening of the jaw tooth mounting groove 12 is provided with an anti-slip protrusion 13 for further limiting the jaw tooth mechanism 2, thereby improving the stability of the jaw tooth mechanism 2 during installation.

[0039] The clamping mechanism 2 includes a clamping head 21, which can clamp an object after being pulled by the lever arm handle 11. A connecting slider 22 is provided at the bottom of the clamping head 21, which inserts into the clamping tooth mounting groove 12, allowing the clamping head 21 to be mounted on the end of the lever arm handle 11 to form a complete clamping shape. Furthermore, the connection between the clamping head 21 and the connecting slider 22 is limited by an anti-slip protrusion 13, which further limits the clamping head 21 to increase the contact area at the connection between the lever arm mechanism 1 and the clamping mechanism 2, thereby improving the stability of the connection.

[0040] like Figure 2 and Figure 3As shown, in some embodiments, the jaw mounting groove 12 of this invention is disposed on the surfaces of the two lever handles 11 that are close to each other, so that the mounting direction of the jaw head 21 is perpendicular to the clamping direction of the pliers. The bottom of the jaw head 21 overlaps with the top of the lever handle 11. When clamping an object with the jaw head 21, the pressure on the jaw head 21 is transmitted through the bottom of the jaw head 21 to the top of the lever handle 11, and the lever handle 11 supports the jaw head 21. This reduces the pressure at the connection between the jaw mounting groove 12 and the connecting slider 22, and improves the strength of the pliers.

[0041] like Figure 3 As shown, in some embodiments, a connecting baffle 14 is provided at one end of the clamp tooth mounting groove 12 of this utility model. This baffle 14 limits the connecting slider 22 during clamp head 21 installation, ensuring that the clamp heads 21 on both sides are installed at the same depth. It also prevents the clamp heads 21 from sliding out from the other side during installation.

[0042] Meanwhile, the connecting baffle 14 can reinforce the jaw mounting groove 12. When the jaw 21 clamps an object and applies force, the connecting baffle 14 can connect and pull the opening of the jaw mounting groove 12 to prevent the jaw 21 from loosening and falling off due to the force causing the opening of the jaw mounting groove 12 to open.

[0043] like Figure 3 and Figure 5 As shown, in some embodiments, the connecting baffle 14 of this invention is provided with a rotating shaft 15 coaxial with the jaw mounting groove 12, and the rotating shaft 15 is rotatable. The connecting slider 22 has a through hole 23 at its axis, the inner diameter of which is equal to the diameter of the rotating shaft 15, and the rotating shaft 15 passes through the through hole 23. After the jaw 21 is installed, the cooperation of the rotating shaft 15 and the through hole 23 further increases the force-bearing area of ​​the connecting slider 22, thereby improving the stability of the connecting slider 22 in the jaw mounting groove 12.

[0044] like Figure 3 and Figure 5As shown, in some embodiments, the outer surface of the rotating shaft 15 of this invention is provided with a locking buckle 16. A sliding groove 24 is provided at the edge of the through hole 23, penetrating the through hole 23. A locking groove 25 is provided on the inner wall of the through hole 23. The sliding groove 24 and the locking groove 25 are interconnected, and the locking groove 25 is an annular groove. When installing the pliers head 21, the locking buckle 16 on the surface of the rotating shaft 15 is inserted into the through hole 23 through the sliding groove 24. When the locking buckle 16 and the locking groove 25 coincide, the rotating shaft 15 can be rotated to misalign the locking buckle 16 with the sliding groove 24, thus limiting the connection slider 22 and preventing it from disengaging from the inside of the pliers tooth mounting groove 12 during use, thereby improving the stability of the pliers. A rotating groove 17 is provided at the end of the rotating shaft 15, which allows tools such as screwdrivers to be inserted, facilitating locking and unlocking by rotating the rotating shaft 15.

[0045] It is worth noting that the width and depth of the slide groove 24 of this utility model are equal to the width and height of the locking buckle 16. The width and depth of the locking groove 25 are equal to the width and depth of the locking buckle 16.

[0046] Through the above technical solution, the locking buckle 16 and the locking groove 25 cooperate to lock the connecting slider 22, while preventing the pliers head 21 and the connecting slider 22 from shaking, thereby improving the stability and safety of the pliers during use.

[0047] like Figure 6 As shown, in some embodiments, the two clamping tooth mechanisms 2 of this invention can be installed in reverse at the ends of the lever arm mechanism 1. When some objects need to be supported and clamped from the inside, traditional pliers do not have clamping teeth on the outside of their ends and are curved, so they cannot achieve the effect of clamping and supporting objects from the inside. However, this pliers, by installing the clamping tooth mechanisms 2 in reverse, can achieve outward flipping of the clamping teeth, used for clamping and supporting objects from the inside.

[0048] In summary, the carp pliers of this utility model with easily detachable pliers teeth achieve the effect of reducing usage costs by providing a detachable pliers tooth mechanism 2 at the end of the lever arm mechanism 1. When the pliers tooth mechanism 2 is damaged, it can be disassembled and replaced.

[0049] Meanwhile, by setting the jaw mounting groove 12 on the side of the two lever handles 11 that are close to each other, the clamping direction of the jaw mounting groove 12 is perpendicular to that of the lever handle 11. After the jaw head 21 is installed inside the jaw mounting groove 12, the jaw head 21 will not move due to the clamping action. Moreover, the bottom of the jaw head 21 overlaps with the top of the lever handle 11. Thus, when the jaw head 21 is subjected to force, the lever handle 11 will resist and limit the jaw head 21, which can improve the force-bearing strength of the jaw head 21.

[0050] This invention features a rotating shaft 15 inside the jaw mounting groove 12 and a locking buckle 16 on the outer surface of the rotating shaft 15. A through hole 23 is provided at the axis of the connecting slider 22, and a slide groove 24 and a locking groove 25 are respectively provided inside the through hole 23. When the locking buckle 16 and the locking groove 25 coincide, the rotating shaft 15 can be rotated to make the locking buckle 16 and the slide groove 24 misaligned, thereby locking the jaw 21 and preventing the jaw 21 from falling off during use.

[0051] This invention allows the pliers head 21 to be installed in reverse at the end of the lever arm handle 11, thereby enabling the object to be supported and clamped from the inside of the object during use, thus expanding its applicability.

[0052] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0053] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A type of carp pliers with easily detachable jaws, characterized in that, It includes a lever arm mechanism (1), and there are two lever arm mechanisms (1), which are hinged together in a cross manner; Each lever arm mechanism (1) is provided with a separable clamping tooth mechanism (2) at its end. After the lever arm mechanism (1) and the clamping tooth mechanism (2) are assembled, the clamping tooth mechanism (2) is limited; The lever arm mechanism (1) includes a lever arm handle (11), the end of which is provided with a pincer tooth mounting groove (12), and the upper opening of the pincer tooth mounting groove (12) is provided with an anti-slip protrusion (13). The clamping mechanism (2) includes a clamping head (21), and a connecting slider (22) is provided at the bottom of the clamping head (21). The connecting slider (22) is inserted into the inside of the clamping tooth mounting groove (12), and the connection between the clamping head (21) and the connecting slider (22) is limited by an anti-slip protrusion (13). The clamp tooth mounting groove (12) is provided on the face of the two lever handles (11) that are close to each other, and the bottom of the clamp head (21) overlaps with the top of the lever handle (11); A connecting baffle (14) is provided at one end of the clamp tooth mounting groove (12); The connecting baffle (14) is provided with a rotating shaft (15) coaxial with the clamp tooth mounting groove (12), and the rotating shaft (15) is rotatable; The connecting slider (22) has a through hole (23) at its axis. The inner diameter of the through hole (23) is equal to the diameter of the rotating shaft (15). The rotating shaft (15) passes through the through hole (23).

2. The carp pliers with easily detachable jaws according to claim 1, characterized in that: The outer surface of the rotating shaft (15) is provided with a locking buckle (16), and the end of the rotating shaft (15) is provided with a rotating groove (17). The edge of the through hole (23) is provided with a sliding groove (24) that passes through the through hole (23), and the inner wall of the through hole (23) is provided with a locking groove (25). The sliding groove (24) and the locking groove (25) are connected, and the locking groove (25) is an annular groove.

3. The carp pliers with easily detachable teeth according to claim 2, characterized in that: The width and depth of the slide groove (24) are equal to the width and height of the locking buckle (16); The width and depth of the locking groove (25) are equal to the width and depth of the locking buckle (16).

4. The carp pliers with easily detachable jaws according to any one of claims 1-3, characterized in that: The two clamping mechanisms (2) can be mounted in opposite directions at the ends of the lever arm mechanism (1).