Shifting rod for crimping pliers

By designing a lever structure for the crimping pliers, the problem of the check pawl being difficult to move under one-handed operation was solved, achieving rapid reset of the crimping pliers and accurate terminal positioning.

CN223552835UActive Publication Date: 2025-11-14NANJING INST OF MECHATRONIC TECH
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423137636.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-11-14
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

When using crimping pliers, it is difficult to move the check pawl to reset it when operating with one hand, which can lead to terminal misalignment or displacement that is difficult to correct.

Method used

A lever for wire crimping pliers is designed, including a check pawl, a pawl cavity, a locking lever, a rotating rod, a stop plate, and a push rod. By moving the short lever, the locking lever is pushed to release the check pawl, thereby enabling the wire crimping pliers to quickly reset.

Benefits of technology

The wire clamps allow for quick resetting with one hand, improving work efficiency and ensuring accurate terminal positioning.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223552835U_ABST
    Figure CN223552835U_ABST
Patent Text Reader

Abstract

The utility model discloses a driving lever for crimping pliers, which belongs to the technical field of crimping pliers and comprises a crimping pliers body, a check pawl is arranged in the crimping pliers body, a pawl cavity is arranged in the crimping pliers body, the check pawl is arranged in the pawl cavity, a clamping rod is further arranged in the pawl cavity, the clamping rod is clamped on the check pawl, and the clamping rod is connected with the clamping rod. A rotating rod is rotationally connected to the middle position of the check pawl, a blocking disc is fixedly installed at the other end of the rotating rod, a pushing rod is fixedly installed on the side wall of the side, facing the check pawl, of the blocking disc, the side wall of the pushing rod abuts against the side wall of the clamping rod, and a short rod is fixedly connected to the side wall of the side, back to the check pawl, of the blocking disc. The short rod which is more convenient to stir and matched parts are arranged in the crimping plier, so that the function of a stirring rod in the original crimping plier is achieved, and a worker can use the crimping plier with one hand more conveniently.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of wire crimping pliers technology, and in particular relates to a lever for wire crimping pliers. Background Technology

[0002] Both cold-press terminal crimping pliers and tubular terminal crimping pliers are tools specifically designed for connecting cables and terminals. They work by mechanically pressing the terminals to tightly bond them to the wires, thus achieving an electrical connection. The lever is part of the crimping pliers and can be used to lock or release the jaws, allowing users to adjust or change the crimping position during use. It can also quickly switch between different crimping modes or change the mold, improving work efficiency.

[0003] If terminal misalignment or displacement is found during use, a tool is needed to move the check pawl to reset the crimping pliers. However, most operators use one hand when using crimping pliers, and the check pawl is often difficult to move by hand. Therefore, it is difficult for operators to move the check pawl to reset the crimping pliers when using one hand.

[0004] To address this issue, we propose a lever for crimping pliers. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art by proposing a lever for wire clamps.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A lever for crimping pliers includes a crimping pliers body, a check pawl installed in the crimping pliers body, a pawl cavity in the crimping pliers body, the check pawl being installed in the pawl cavity, a locking lever installed in the pawl cavity, the locking lever locking onto the check pawl, a rotating rod rotatably connected to the middle position of the check pawl, a stop plate fixedly installed at the other end of the rotating rod, a push rod fixedly installed on the side wall of the stop plate facing the check pawl, the side wall of the push rod abutting against the side wall of the locking lever, and a short rod fixedly connected to the side wall of the stop plate facing away from the check pawl.

[0008] Preferably, the bottom wall of the ratchet cavity is provided with an inclined groove, and the pawl is slidably connected to the side wall of the inclined groove.

[0009] Preferably, a torsion spring is wound around the rotating rod, one end of which is fixedly connected to the side wall of the baffle, and the other end is fixedly connected to the side wall of the check pawl.

[0010] Preferably, a fixing plate is also fixedly connected to the pawl cavity, the fixing plate has a through hole, the rotating rod passes through the through hole, and fixing rods are fixedly connected to both the upper and lower ends of the fixing plate, with the end of the fixing rod away from the fixing plate being fixedly connected to the side wall of the pawl cavity.

[0011] Preferably, the pawl cavity is an open design, the diameter of the baffle is larger than the diameter of the pawl cavity, and the distance between the baffle and the pawl cavity is less than 2mm.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] When using the crimping pliers, if terminal misalignment is detected, the short lever can be moved to push the locking lever, causing the locking lever to disengage from the check pawl. This allows the check pawl to be released, making it easier for the operator to reset the crimping pliers. The torsion spring on the rotating rod on the side of the retaining plate also allows the retaining plate and the short lever to remain in their initial positions, facilitating repeated resetting of the crimping pliers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the structural connection between the baffle plate and the ratchet cavity in this utility model.

[0016] Figure 3 for Figure 2 A magnified structural diagram of part A in the middle;

[0017] Figure 4 This is a schematic diagram of the structural connection of the back of the baffle plate in this utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the ratchet cavity in this utility model.

[0019] In the diagram: 1. Crimping pliers body; 2. Check pawl; 3. Pawl cavity; 4. Clamping lever; 5. Rotating lever; 6. Stop plate; 7. Push rod; 8. Short rod; 9. Angled groove; 10. Torsion spring; 11. Fixing plate; 12. Through hole; 13. Fixing rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] like Figure 1 - Figure 5As shown, a lever for crimping pliers includes a crimping pliers body 1, a check pawl 2 installed in the crimping pliers body 1, and a pawl cavity 3 formed in the crimping pliers body 1. The check pawl 2 is installed in the pawl cavity 3, which can be roughly considered circular, so the check pawl 2 can rotate in the pawl cavity 3. A locking rod 4 is also installed in the pawl cavity 3. The thickness of the locking rod 4 is greater than the thickness of the check pawl 2, but less than the depth of the pawl cavity 3. Therefore, the locking rod 4 does not affect the rotation of the stop plate 6. At the same time, the locking rod 4 is also pushed by the push rod 7. An inclined groove 9 is formed on the bottom wall of the pawl cavity 3. The locking rod 4 is slidably connected to the side wall of the inclined groove 9. The locking rod 4 is locked on the check pawl 2. The inclined groove 9 is set at an upward angle. Therefore, the locking rod 4 sliding in the inclined groove 9 will fall into the check pawl 2 under the action of gravity, thereby fixing the check pawl 2.

[0022] A rotating rod 5 is rotatably connected to the middle position of the anti-return pawl 2. A retaining plate 6 is fixedly installed at the other end of the rotating rod 5. The pawl cavity 3 is an open design. The diameter of the retaining plate 6 is larger than the diameter of the pawl cavity 3. The distance between the retaining plate 6 and the pawl cavity 3 is less than 2mm. During rotation, the retaining plate 6 can avoid friction between itself and the pawl cavity 3 and the crimping pliers body 1, thereby ensuring the stability of the rotation of the retaining plate 6. A bearing can also be installed between the retaining plate 6 and the pawl cavity 3. At the same time, the small gap between the retaining plate 6 and the pawl cavity 3 also helps to prevent foreign objects from entering the pawl cavity 3. A torsion spring 10 is wound around the rotating rod 5. One end of the torsion spring 10 is fixedly connected to the side wall of the retaining plate 6, and the other end is fixedly connected to the side wall of the anti-return pawl 2. The force applied by the torsion spring 10 to the rotating rod 5 will cause the push rod 7 to contact the locking rod 4.

[0023] A fixing plate 11 is also fixedly connected to the ratchet pawl cavity 3. A through hole 12 is provided in the fixing plate 11, through which the rotating rod 5 passes. Fixing rods 13 are fixedly connected to both the upper and lower ends of the fixing plate 11. The end of the fixing rod 13 furthest from the fixing plate 11 is fixedly connected to the side wall of the ratchet pawl cavity 3. The fixing plate 11 does not contact the check pawl 2. Figure 1 and Figure 2 As can be seen from the above, the baffle 6 is disc-shaped, and the center of rotation of the baffle 6 is the center of the perforation 12.

[0024] A push rod 7 is fixedly installed on the side wall of the stop plate 6 facing the check pawl 2. The side wall of the push rod 7 abuts against the side wall of the clamp 4. A short rod 8 is fixedly connected to the side wall of the stop plate 6 facing away from the check pawl 2. By moving the short rod 8, the operator can make the short rod 8 drive the turntable to rotate together. The push rod 7 on the back of the turntable will push the clamp 4 in an oblique upward direction, so that the check pawl 2 is unrestricted, making it convenient for the operator to reset the crimping pliers body 1.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lever for wire crimping pliers, comprising a wire crimping pliers body (1), wherein a check pawl (2) is provided in the wire crimping pliers body (1), characterized in that, The crimping pliers body (1) has a ratchet cavity (3), and the check ratchet (2) is installed in the ratchet cavity (3). A locking rod (4) is also installed in the ratchet cavity (3). The locking rod (4) is locked on the check ratchet (2). A rotating rod (5) is rotatably connected to the middle position of the check ratchet (2). A baffle (6) is fixedly installed at the other end of the rotating rod (5). A push rod (7) is fixedly installed on the side wall of the baffle (6) facing the check ratchet (2). The side wall of the push rod (7) abuts against the side wall of the locking rod (4). A short rod (8) is fixedly connected to the side wall of the baffle (6) facing away from the check ratchet (2).

2. The lever for crimping pliers according to claim 1, characterized in that, The bottom wall of the ratchet cavity (3) is provided with an inclined groove (9), and the pawl (4) is slidably connected to the side wall of the inclined groove (9).

3. The lever for crimping pliers according to claim 1, characterized in that, The rotating rod (5) is wrapped with a torsion spring (10). One end of the torsion spring (10) is fixedly connected to the side wall of the baffle (6), and the other end is fixedly connected to the side wall of the anti-return pawl (2).

4. The lever for crimping pliers according to claim 1, characterized in that, A fixing plate (11) is also fixedly connected in the pawl cavity (3). A through hole (12) is provided in the fixing plate (11). The rotating rod (5) passes through the through hole (12). Fixing rods (13) are fixedly connected to both the upper and lower ends of the fixing plate (11). The end of the fixing rod (13) away from the fixing plate (11) is fixedly connected to the side wall of the pawl cavity (3).

5. The lever for crimping pliers according to claim 1, characterized in that, The pawl cavity (3) is an open design, the diameter of the baffle (6) is larger than the diameter of the pawl cavity (3), and the distance between the baffle (6) and the pawl cavity (3) is less than 2 mm.