Gear selecting pawl pin

By designing a gear shifting ratchet pin structure consisting of a pin body, a pressing rod, a connecting body, a connecting sleeve, and a snap-fit ​​mechanism, the problem of inconvenient disassembly and assembly in the existing technology is solved, enabling convenient replacement of the gear shifting ratchet pin and improving the stability and safety of the gear shifting mechanism.

CN223549781UActive Publication Date: 2025-11-14KUNSHAN XINZHENCHEN PRECISION PARTS CO LTD
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Patent Information

Application Number
CN202422922503.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-11-14
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

The existing gear shifting pawl pin is inconvenient to disassemble and assemble, making replacement difficult and affecting the stability and safety of the gear shifting mechanism.

Method used

A selector ratchet pin structure was designed, comprising a pin body, a pressing rod, a connecting body, a connecting sleeve, a spring, and a locking mechanism. The locking mechanism enables the pin body to be fixed and disassembled, the spring force is used to maintain stability, and the pressing rod unlocks the pin body for easy assembly and disassembly.

Benefits of technology

This enables convenient disassembly and assembly of the gear selection pawl pin, improving the maintenance efficiency and safety of the gear shifting mechanism.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gear selecting pawl pin, which relates to the technical field of gear selecting pawl pins and comprises a pin body, the pin body is of a hollow structure, the upper end of the pin body is fixedly connected with a mounting plate, a pressing rod is arranged in the pin body, the upper end of the pressing rod penetrates through the mounting plate, and the pressing rod is in sliding connection with the mounting plate. The lower end of the pin body is fixedly connected with two connecting bodies, the two connecting bodies are symmetrically arranged on the two sides of the pressing rod, the lower ends of the two connecting bodies are sleeved with the same connecting sleeve, a spring is arranged in the connecting sleeve, and the lower end of the spring is fixedly connected to the inner bottom wall of the connecting sleeve. The upper end of the spring abuts against the lower end of the pressing rod in a contact mode, a mounting groove is formed in the side wall, close to the lower end, of the pressing rod in a penetrating mode, and a clamping mechanism is arranged in the mounting groove. According to the gear selecting pawl pin, the pin body and the clamping mechanism are arranged, so that the pin body can be conveniently disassembled and assembled, and the gear selecting pawl pin can be conveniently replaced.
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Description

Technical Field

[0001] This utility model relates to the field of gear selection ratchet pin technology, and in particular to gear selection ratchet pin. Background Technology

[0002] Shift pawls are commonly used in the shifting mechanism of transmissions, especially in automatic transmissions or some manual transmissions. Their main function is to ensure that the shift lever is accurately positioned in the correct gear, while preventing it from accidentally moving during driving, thus ensuring driving safety and stability.

[0003] When the gear selector pawl pin malfunctions, it may cause problems such as difficulty shifting gears, inaccurate gear positions, and gear shift lever wobbling. Therefore, the gear selector pawl pin needs to be replaced. However, the current gear selector pawl pins are usually fixed with an interference fit, which makes the disassembly and assembly operation very inconvenient when the gear selector pawl pin needs to be replaced in the future. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a selector ratchet pin.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gear selector pawl pin includes a pin body, which is hollow. A mounting plate is fixedly connected to the upper end of the pin body. A pressing rod is provided inside the pin body, with its upper end penetrating the mounting plate and slidably connected to it. Two connecting bodies are fixedly connected to the lower end of the pin body, symmetrically arranged on both sides of the pressing rod. A common connecting sleeve is fitted onto the lower ends of the two connecting bodies. A spring is provided inside the connecting sleeve, with its lower end fixedly connected to the inner bottom wall of the connecting sleeve. The upper end of the spring contacts and abuts against the lower end of the pressing rod. A mounting groove is provided through the side wall of the pressing rod near its lower end, and a locking mechanism is provided inside the mounting groove.

[0007] As a further improvement of this utility model, the snap-fit ​​mechanism includes a rotating shaft disposed inside the mounting groove. Both ends of the rotating shaft penetrate the inner wall of the mounting groove, and the rotating shaft is fixedly connected to the inner wall of the mounting groove. Two rotating blocks are rotatably sleeved on the rotating shaft, and a stop block is fixedly connected to the side wall of each of the two rotating blocks. The stop block extends out of the mounting groove.

[0008] As a further improvement of this utility model, the upper end of the pressing rod is a hemispherical structure.

[0009] As a further improvement of this utility model, the connecting sleeve is threaded onto the outside of the connecting body.

[0010] As a further improvement of this utility model, two connecting blocks are fixedly connected to the upper end of the mounting plate, and the two connecting blocks are symmetrically arranged on both sides of the pressing rod.

[0011] As a further improvement of this utility model, the side wall of the connecting block is provided with anti-slip grooves.

[0012] The beneficial effects of this utility model are:

[0013] By setting up a snap-fit ​​mechanism, the pin is inserted into the pawl, and the snap-fit ​​mechanism is used to fix the pin, so that the pin can be disassembled.

[0014] By setting up a pressing rod and a spring, the spring force acts on the pressing rod to maintain its stability, which in turn maintains the stability of the locking mechanism. By pressing the pressing rod downwards, the locking mechanism can be unlocked, thus facilitating the disassembly and assembly of the pin.

[0015] This utility model, by setting a pin body and a snap-fit ​​mechanism, allows for easy disassembly and assembly of the pin body, thereby facilitating the replacement of the gear selection pawl pin. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the gear selection ratchet pin proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the pin body and connecting body of the gear selection pawl pin proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting sleeve and spring of the gear selection pawl pin proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the pressing rod, mounting groove, and locking mechanism of the gear selection ratchet pin proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the locking mechanism of the gear selection pawl pin proposed in this utility model.

[0021] In the diagram: 1 Mounting plate, 2 Connecting block, 3 Anti-slip groove, 4 Pressing rod, 5 Pin, 6 Connecting body, 7 Connecting sleeve, 8 Stop block, 9 Spring, 10 Mounting groove, 11 Rotating shaft, 12 Rotating block. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-5 The selector pawl pin includes a pin body 5, which is hollow. A mounting plate 1 is fixedly connected to the upper end of the pin body 5. A pressing rod 4 is provided inside the pin body 5. The upper end of the pressing rod 4 passes through the mounting plate 1 and is slidably connected to the mounting plate 1. The upper end of the pressing rod 4 is a hemispherical structure. Two connecting bodies 6 are fixedly connected to the lower end of the pin body 5. The two connecting bodies 6 are symmetrically arranged on both sides of the pressing rod 4. The lower ends of the two connecting bodies 6 are fitted with the same connecting sleeve 7. The connecting sleeve 7 is threaded onto the outside of the connecting body 6. A spring 9 is provided inside the connecting sleeve 7. The lower end of the spring 9 is fixedly connected to the inner bottom wall of the connecting sleeve 7. The upper end of the spring 9 contacts and abuts against the lower end of the pressing rod 4. A mounting groove 10 is provided through the side wall of the pressing rod 4 near the lower end. A snap-fit ​​mechanism is provided inside the mounting groove 10.

[0024] In this utility model, the snap-fit ​​mechanism includes a rotating shaft 11 disposed inside the mounting groove 10. Both ends of the rotating shaft 11 penetrate the inner wall of the mounting groove 10, and the rotating shaft 11 is fixedly connected to the inner wall of the mounting groove 10. Two rotating blocks 12 are rotatably sleeved on the rotating shaft 11. A stop block 8 is fixedly connected to the side wall of each of the two rotating blocks 12, and the stop block 8 extends out of the mounting groove 10.

[0025] The upper end of the mounting plate 1 is fixedly connected to two connecting blocks 2. The two connecting blocks 2 are symmetrically arranged on both sides of the pressing rod 4. The side wall of the connecting block 2 is provided with anti-slip groove 3. The connecting blocks 2 are provided to make it easy to pinch the connecting blocks 2 to pull out the pin 5. The anti-slip groove 3 can effectively prevent slipping.

[0026] When the selection pawl pin needs to be disassembled in use, the pressing rod 4 is pressed down, which causes the rotating block 12 to drive the stop block 8 into the interior of the connecting sleeve 7, thereby releasing the blocking effect of the stop block 8 and allowing the pin body 5 to be pulled off and disassembled.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A gear selection ratchet pin, characterized in that, The device includes a pin (5), which is a hollow structure. The upper end of the pin (5) is fixedly connected to a mounting plate (1). The pin (5) has a pressing rod (4) inside. The upper end of the pressing rod (4) passes through the mounting plate (1) and is slidably connected to the mounting plate (1). The lower end of the pin (5) is fixedly connected to two connecting bodies (6). The two connecting bodies (6) are symmetrically arranged on both sides of the pressing rod (4). The lower ends of the two connecting bodies (6) are fitted with the same connecting sleeve (7). The connecting sleeve (7) has a spring (9) inside. The lower end of the spring (9) is fixedly connected to the inner bottom wall of the connecting sleeve (7). The upper end of the spring (9) contacts and abuts against the lower end of the pressing rod (4). The side wall of the pressing rod (4) near the lower end is provided with a mounting groove (10). The mounting groove (10) is provided with a snap-fit ​​mechanism inside.

2. The gear selection ratchet pin according to claim 1, characterized in that, The snap-fit ​​mechanism includes a rotating shaft (11) disposed inside the mounting groove (10). Both ends of the rotating shaft (11) penetrate the inner wall of the mounting groove (10), and the rotating shaft (11) is fixedly connected to the inner wall of the mounting groove (10). Two rotating blocks (12) are rotatably sleeved on the rotating shaft (11). A stop block (8) is fixedly connected to the side wall of each of the two rotating blocks (12), and the stop block (8) extends out of the mounting groove (10).

3. The gear selection ratchet pin according to claim 1, characterized in that, The upper end of the pressing rod (4) is a hemispherical structure.

4. The gear selection ratchet pin according to claim 1, characterized in that, The connecting sleeve (7) is threaded onto the outside of the connecting body (6).

5. The gear selection ratchet pin according to claim 1, characterized in that, The upper end of the mounting plate (1) is fixedly connected to two connecting blocks (2), and the two connecting blocks (2) are symmetrically arranged on both sides of the pressing rod (4).

6. The gear selection ratchet pin according to claim 5, characterized in that, The side wall of the connecting block (2) is provided with anti-slip grooves (3).