Snap spring pliers with inner clamping and outer clamping rapid gear shifting conversion function

Abstract

The utility model relates to the technical field of manual hardware tools, in particular to a pair of snap spring pliers with an inner clamping and outer clamping rapid gear shifting conversion function, which comprises a fixed body and a movable body, a circular positioning hole is formed in the fixed body close to the upper end, a gear shifting pin matched with the positioning hole is assembled in the positioning hole, and the movable body is fixedly connected with the fixed body. A gear boss of an integrated structure is arranged at the rear end of the gear shifting pin. The gear shifting pin moves up and down along the V-shaped groove of the gear shifting adjusting groove, the movable body is prevented from directly moving left and right, indirect left-right movement of the movable body on the fixed body is achieved, and conversion of an outer clamping function and an inner clamping function is achieved. Due to the internal and external clamping conversion function, the same tool can meet the mounting requirements of different types of clamp springs, the tool does not need to be replaced, the working efficiency is improved, and the clamp spring mounting and dismounting tool is suitable for clamp spring mounting and dismounting work in various working environments.

Description

Technical Field

[0001] This utility model relates to the field of manual hardware tools, and more specifically, to a snap ring pliers with a quick shift function for internal and external snap rings. Background Technology

[0002] Snap ring pliers are specialized tools used for installing and removing snap rings (also called retaining rings or retaining rings). Snap rings, as fasteners, are installed in the shaft groove or hole groove of a component to restrain its axial movement. Snap ring pliers are tools specifically designed for installing and removing snap rings; they are a type of needle-nose pliers, and the pliers heads can be straight inwards, straight outwards, bent inwards, or bent outwards. Snap ring pliers are mainly divided into two categories: external snap ring pliers and internal snap ring pliers. External snap ring pliers, also known as shaft snap ring pliers, are used for installing and removing snap rings external to shafts; internal snap ring pliers, also known as hole snap ring pliers, are used for installing and removing snap rings internal to holes.

[0003] Currently, most snap ring pliers on the market are single-function, supporting only internal or external snapping, and cannot quickly switch between functions according to actual needs, thus limiting their application range. Therefore, developing snap ring pliers that can quickly switch between internal and external snapping functions is particularly important. Summary of the Invention

[0004] To address the shortcomings of existing circlip pliers, this utility model provides a circlip pliers with a quick switching function for internal and external circlips. The circlip pliers are easy to operate, have multiple functions, and are suitable for circlip installation and removal in various working environments. Through innovative structural design, stability and multi-functionality are achieved during operation, greatly improving work efficiency and user experience.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A snap ring pliers with quick shifting function of inner and outer snap rings includes a fixed body and a movable body. The fixed body has a circular positioning hole near the upper end. A shift pin that matches the positioning hole is installed inside the positioning hole. The rear end of the shift pin has an integrated shift boss.

[0007] The movable body is provided with a shift adjustment groove that matches the shift pin near the upper end. A shift button is provided on one side of the fixed body. A spring is fixedly connected inside the shift button. One end of the spring is fixedly connected to the side of the fixed body. One end of the shift pin passes through the positioning hole, the shift adjustment groove and the spring in sequence, and is connected to the shift button.

[0008] Furthermore, the shift adjustment groove of the movable body is V-shaped, and an outer locking gear recess and an inner locking gear recess are provided on the movable body at both ends of the adjustment groove.

[0009] Furthermore, a first snap ring pin is fixedly connected to the front end of the fixed body, and a second snap ring pin is fixedly connected to the front end of the movable body. The first snap ring pin and the second snap ring pin are positioned correspondingly and are located on the vertical center plane of the fixed body and the movable body, respectively.

[0010] Furthermore, the shift pin has an inner hole at the end away from the gear shift boss, and the shift button is a hollow cylinder with one end closed, with a pin fixedly connected inside. The pin is riveted to the inner hole to connect the shift pin and the shift button.

[0011] Furthermore, plastic handles are fixedly connected to the outer surfaces of the lower halves of both the fixed body and the movable body.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In this utility model, the shift pin moves up and down along the V-shaped groove of the shift adjustment groove, avoiding the inability of the movable body to move directly left and right, thereby realizing the indirect left and right movement of the movable body on the fixed body. This enables the conversion between the outer and inner clamping functions. The inner and outer clamping conversion function allows the same tool to adapt to different types of snap ring installation requirements without changing tools, thus improving work efficiency. It is suitable for snap ring installation and disassembly work in various working environments.

[0014] 2. This utility model has a simple structure and uses a V-shaped structure to achieve up, down, left and right movement, making it convenient to operate. This makes the operation process intuitive and easy to understand, reduces the complexity of operation, and greatly improves work efficiency and user experience. Attached Figure Description

[0015] Figure 1 This is a front view of the overall structure of this utility model;

[0016] Figure 2 This is a left view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the movable body in this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the fixing body in this utility model;

[0019] Figure 5 This is a schematic diagram of the shift button in this utility model;

[0020] Figure 6 This is a schematic diagram of the shift pin structure in this utility model;

[0021] Figure 7 This is a schematic diagram showing the position of the outer card in this utility model;

[0022] Figure 8This is a schematic diagram showing the position of the inner card in this utility model.

[0023] In the diagram: 1. Fixed body; 2. Moving body; 3. Shift pin; 4. Spring; 5. Shift button; 6. Plastic grip sleeve; 7. First snap ring pin; 8. Second snap ring pin; 9. Positioning hole; 10. Shift adjustment groove; 11. Inner locking recess; 12. Outer locking recess; 13. Gear shift boss; 14. Inner hole; 15. Pin. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0025] like Figures 1 to 8 As shown, a snap ring pliers with a quick shift function for internal and external snap rings includes a fixed body 1 and a movable body 2. The fixed body 1 has a circular positioning hole 9 near its upper end, and a shift pin 3 that matches it is installed inside the positioning hole 9. The rear end of the shift pin 3 has an integral shift boss 13, and the front end has an inner hole 14. The front end of the fixed body 1 is fixedly connected to a first snap ring pin 7. The movable body 2 has a shift adjustment groove 10 that matches the shift pin 3 near its upper end. The shift pin 3 passes through the positioning hole 9 of the fixed body 1, the shift adjustment groove 10 of the movable body 2, and is connected to the spring 4 and the shift button 5.

[0026] The front end of the movable body 2 is fixedly connected to a second snap ring pin 8, and the first snap ring pin 7 and the second snap ring pin 8 are of the same specifications.

[0027] The shift adjustment groove 10 of the movable body 2 is V-shaped and has an outer locking gear position recess 12 and an inner locking gear position recess 11 at both ends.

[0028] The rear end of the shift pin 3 is provided with an integrated shift boss 13, which is used to cooperate with the outer shift recess 12 or the inner shift recess 11 to complete the shift locking.

[0029] The pin 15 on the shift button 5 is riveted to the inner hole 14 of the shift pin 3.

[0030] The first snap ring pin 7 and the second snap ring pin 8 are positioned correspondingly, both located on the vertical center plane of the fixed body 1 and the movable body 2. This design allows the first snap ring pin 7 and the second snap ring pin 8 to align with the holes on the external and internal snap rings during use, achieving clamping and fixing of the external and internal snap rings.

[0031] In this embodiment, plastic grip sleeves 6 are fixedly connected to the outer surfaces of the lower halves of both the fixed body 1 and the movable body 2. The plastic grip sleeves 6 are soft and non-slip, providing a more comfortable grip for the user. During prolonged use of the snap ring pliers, the plastic grip sleeves 6 can effectively reduce hand fatigue and discomfort. Simultaneously, the plastic grip sleeves 6 increase the friction between the handle and the hand, preventing slippage during use.

[0032] The working principle of this snap ring pliers with quick internal and external snap-shift function:

[0033] During use, the user first presses the shift button 5 as needed, so that the shift button 5 contacts the side of the fixed body 1, compressing the spring 4. The shift pin 3's shift boss 13 disengages from the outer shift recess 12. The movable body 2 moves up and down along the V-shaped groove of the shift adjustment groove 10, avoiding the first snap ring pin 7 on the same plane as the head of the fixed body 1. Then, it moves upward along the V-shaped groove of the shift adjustment groove 10, reaching the inner shift recess 11. The shift button 5 is released, and the compressed spring 4 returns to its original position, causing the shift pin 3's shift boss 13 and the inner shift recess 11 to contact and lock, realizing the conversion from outer to inner card. Similarly, the reverse operation realizes the conversion from inner to outer card.

[0034] The shift pin 3 moves up and down along the V-shaped groove of the shift adjustment groove 10, avoiding the inability of the movable body 2 to move directly left and right, thus realizing the indirect left and right movement of the movable body 2 on the fixed body 1, realizing the conversion between the outer and inner clamping functions. The inner and outer clamping conversion function allows the same tool to adapt to different types of snap ring installation requirements without changing tools, improving work efficiency and making it suitable for snap ring installation and disassembly work in various working environments.

[0035] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A snap ring pliers with a quick shift function for internal and external snap rings, comprising a fixed body (1) and a movable body (2), characterized in that: The fixed body (1) has a circular positioning hole (9) inside near the upper end. A shift pin (3) that is compatible with it is installed inside the positioning hole (9). The shift pin (3) has an integrated gear shift boss (13) at the rear end. The movable body (2) is provided with a shift adjustment groove (10) that matches the shift pin (3) near the upper end. A shift button (5) is provided on one side of the fixed body (1). A spring (4) is fixedly connected inside the shift button (5). One end of the spring (4) is fixedly connected to the side of the fixed body (1). One end of the shift pin (3) passes through the positioning hole (9), the shift adjustment groove (10) and the spring (4) in sequence, and is connected to the shift button (5).

2. The snap ring caliper with quick shifting function for internal and external snap rings according to claim 1, characterized in that: The shift adjustment groove (10) of the movable body (2) is V-shaped, and the movable body (2) is provided with an outer locking gear position recess (12) and an inner locking gear position recess (11) at both ends of the adjustment groove (10).

3. The snap ring caliper with quick shifting function for internal and external snap rings according to claim 1, characterized in that: The fixed body (1) is fixedly connected to the front end of the first snap ring pin (7), and the movable body (2) is fixedly connected to the front end of the second snap ring pin (8). The first snap ring pin (7) and the second snap ring pin (8) are located on the vertical center plane of the fixed body (1) and the movable body (2), respectively.

4. The snap ring caliper with quick shifting function for internal and external snap rings according to claim 3, characterized in that: The shift pin (3) has an inner hole (14) at the end away from the gear shift boss (13). The shift button (5) is a hollow cylinder with one end closed. A pin (15) is fixedly connected inside it. The pin (15) is riveted to the inner hole (14) to realize the connection between the shift pin (3) and the shift button (5).

5. The snap ring caliper with quick shifting function for internal and external snap rings according to claim 1, characterized in that: Plastic handles (6) are fixedly connected to the outer surfaces of the lower half of both the fixed body (1) and the movable body (2).

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