Shifting fork with elastic shifting fork shaft mounting hole

Abstract

The utility model relates to the technical field of automobile accessories, and discloses a shifting fork with an elastic shifting fork shaft mounting hole, which comprises a shifting fork body, and a linkage component is arranged at the end of the shifting fork body. According to the shifting fork with the elastic shifting fork shaft mounting hole, by arranging a linkage assembly, an installed arc-shaped piece can slide along an annular movable groove and intercept an opening in the side face of a connecting block, and along with continuous rotation of a locking bolt, an abutting ring can extrude an abutting block; meanwhile, the locking bolt and the arc-shaped block are matched to limit the position of the arc-shaped piece, so that the stability is better when the shifting fork body and the shifting fork rod are installed and connected in a butt joint mode, and slipping and deviation between the shifting fork rod and the shifting fork body caused by insufficient contact area are avoided; and the use effect of the shifting fork body is ensured.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a shift fork with a flexible shift fork shaft mounting hole. Background Technology

[0002] The shift fork is an important component in a car's gearbox. It is connected to the gear lever and located at the lower end of the lever. It moves the middle shift wheel to change the input / output speed ratio.

[0003] According to a published application for a shift fork with a flexible shift fork shaft mounting hole (publication number: CN218236106U), the mounting hole is connected to the shift fork shaft, and a locking assembly is used to retract or loosen the first and second locking bodies to compensate for the gaps caused by wear of the mounting hole and improve the working condition of the automotive transmission.

[0004] However, in actual use, after the mounting hole and the shift fork shaft are installed, the connection stability between the shift fork shaft and the shift fork relies entirely on the locking strength of the mounting hole. However, since the shift fork is generally made of metal, even if it can be slightly bent and deformed, there will still be a certain gap between the two, making it difficult to guarantee a stable connection and locking of the shift fork shaft. In view of this, we propose a shift fork with a flexible shift fork shaft mounting hole. Summary of the Invention

[0005] The purpose of this invention is to provide a shift fork with a flexible shift fork shaft mounting hole to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shift fork with a flexible shift fork shaft mounting hole, comprising a shift fork body, wherein a linkage component is provided at the end of the shift fork body, the linkage component comprising:

[0007] A connecting block is fixedly installed on the side wall of the shift fork body. A mounting hole is provided at the center of the connecting block. A locking hole is provided on the side wall of the connecting block. A locking bolt passes through the locking hole. A nut is threaded onto the outer surface of the end of the locking bolt. An arc-shaped movable groove is provided on the inner wall of the connecting block. An arc-shaped piece is slidably connected to the inner surface of the arc-shaped movable groove. An arc-shaped groove is provided on the outer surface of the arc-shaped piece away from the center of the mounting hole. A cylindrical ridge is fixedly installed on the outer surface of the arc-shaped piece close to the center of the mounting hole.

[0008] The connecting block has a movable cavity on its inner wall. The connecting block is slidably connected to the inner wall of the movable cavity. A small spring is fixedly connected between the end of the connecting block and the end inner wall of the movable cavity. An arc-shaped block is fixedly installed on the side wall of the connecting block. A protruding ridge is fixedly installed on the arc-shaped outer wall of the arc-shaped block near the center of the mounting hole. An abutment ring is fixedly installed on the outer surface of the nut near the connecting block.

[0009] Preferably, the connecting block is U-shaped, and the inner wall of the connecting block away from the shift fork body is open, so that the connecting block itself can be moved slightly by external force.

[0010] Preferably, there are two sets of locking holes, and the two sets of locking holes are symmetrically arranged with the horizontal central axis of the connecting block as the axis of symmetry. The number of locking bolts and nuts corresponds to the number of locking holes, so that the connecting block can be more stable and balanced under force when locking and fixing the shift fork.

[0011] Preferably, the upper and lower outer walls of the arc-shaped piece are provided with arc-shaped bands, and the upper and lower inner surfaces of the arc-shaped movable groove are provided with arc-shaped guide grooves that are adapted to the arc-shaped bands, thereby ensuring the movement path of the arc-shaped piece under external force.

[0012] Preferably, the side wall of the connecting block is provided with a circular groove that matches the outer diameter of the abutment ring, and the circular groove is coaxially arranged with the locking hole, so that when the nut and the locking bolt are connected and threaded together, the abutment ring will be embedded in the interior of the circular groove.

[0013] Preferably, the protruding ridge is inclined in the same way as the arc-shaped groove, so that the protruding ridge will contact and press against the outer surface of the arc-shaped piece that enters the side of the arc-shaped block as the arc-shaped block moves.

[0014] Compared with the prior art, the present invention provides a shift fork with a flexible shift fork shaft mounting hole, which has the following advantages:

[0015] 1. This shift fork with a flexible shift fork shaft mounting hole, through the setting of a linkage component, allows the installed arc-shaped piece to slide along the annular movable groove and intercept the opening on the side of the connecting block. As the locking bolt continues to rotate, the abutment ring will squeeze the abutment block, causing the arc-shaped block to press against the outer surface of the arc-shaped piece. With the locking bolt and the arc-shaped block restricting the position of the arc-shaped piece, the stability of the shift fork body is better when it is installed and connected with the shift fork rod. It will not slip or shift between the shift fork rod and the shift fork body due to insufficient contact area, thus ensuring the performance of the shift fork body.

[0016] 2. The shift fork with the elastic shift fork shaft mounting hole achieves the anti-slip effect of the arc-shaped plate through the arc-shaped groove on the arc-shaped outer surface and the inclined protrusion on the outer surface of the arc-shaped block. This prevents the shift fork body from slipping and loosening between itself and the shift fork rod in the mounting hole during long-term use under stress, thus ensuring the service life of the shift fork body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the connecting block of this utility model;

[0019] Figure 3 This is a partial three-dimensional structural diagram of the linkage component of this utility model;

[0020] Figure 4 This is a schematic diagram of the locking bolt and nut structure of this utility model.

[0021] In the diagram: 1. Shift fork body; 2. Linkage assembly; 21. Connecting block; 22. Mounting hole; 23. Locking hole; 24. Locking bolt; 25. Nut; 26. Arc-shaped piece; 27. Arc-shaped groove; 28. Cylindrical ridge; 29. ​​Abutment block; 210. Small spring; 211. Arc-shaped block; 212. Protruding ridge; 213. Abutment ring. Detailed Implementation

[0022] like Figures 1-4 As shown, this utility model provides a technical solution: a shift fork with an elastic shift fork shaft mounting hole, including a shift fork body 1, and a linkage component 2 provided at the end of the shift fork body 1. The linkage component 2 includes a connecting block 21, a mounting hole 22, a locking hole 23, a locking bolt 24, a nut 25, an arc-shaped piece 26, an arc-shaped groove 27, a cylindrical ridge 28, an abutment block 29, a small spring 210, an arc-shaped block 211, a protruding ridge 212, and an abutment ring 213.

[0023] In one embodiment of this utility model, the connecting block 21 is fixedly installed on the side wall of the shift fork body 1. A mounting hole 22 is provided at the center of the connecting block 21, and a locking hole 23 is provided on the side wall of the connecting block 21. A locking bolt 24 passes through the locking hole 23, and a nut 25 is threaded onto the outer surface of the end of the locking bolt 24. An arc-shaped movable groove is provided on the inner wall of the connecting block 21, and an arc-shaped piece 26 is slidably connected to the inner surface of the arc-shaped movable groove. An arc-shaped groove 27 is provided on the outer surface of the arc-shaped piece 26 on the side away from the center of the mounting hole 22. A cylindrical ridge 28 is fixedly installed on the outer surface of the arc-shaped piece 26 near the center of the mounting hole 22. A movable cavity is opened on the inner wall of the connecting block 21. An abutment block 29 is slidably connected to the inner wall of the movable cavity. A small spring 210 is fixedly connected between the end of the abutment block 29 and the end inner wall of the movable cavity. An arc-shaped block 211 is fixedly installed on the side wall of the abutment block 29. A protruding ridge 212 is fixedly installed on the arc-shaped outer wall of the arc-shaped block 211 near the center of the mounting hole 22. An abutment ring 213 is fixedly installed on the outer surface of the nut 25 near the connecting block 21.

[0024] Furthermore, the connecting block 21 is U-shaped, and the inner wall of the connecting block 21 away from the shift fork body 1 is open. This allows the connecting block 21 to move slightly and easily with external force, making it easy to insert the shift fork rod into the mounting hole 22. The external bolts deform the connecting block 21 to fix and tighten the shift fork rod, thereby enabling the shift fork rod to control the shift fork body 1. At the same time, there are two sets of locking holes 23, and the two sets of locking holes 23 are symmetrically arranged with the horizontal central axis of the connecting block 21 as the axis of symmetry. The number of locking bolts 24 and nuts 25 corresponds to the number of locking holes 23, so that the connecting block 21 can be more stable and balanced under force when locking and fixing the shift fork rod.

[0025] In addition, arc-shaped bands are provided on the upper and lower outer walls of the arc-shaped piece 26, and arc-shaped guide grooves adapted to the arc-shaped bands are provided on the upper and lower inner surfaces of the arc-shaped movable groove, thereby ensuring the movement path of the arc-shaped piece 26 under external force and preventing it from deviating during use. At the same time, the arc-shaped groove 27 is inclinedly arranged on the arc-shaped outer surface of the arc-shaped piece 26, and the number of arc-shaped grooves 27 and cylindrical edges 28 is arranged in several sets, and the several sets of arc-shaped grooves 27 and cylindrical edges 28 are evenly distributed in an arc-shaped array on the surface of the arc-shaped piece 26.

[0026] In this embodiment of the invention, the movable cavity passes through the mounting hole 22, and one side of the movable cavity passes through the connecting block 21. This allows the abutment block 29, located within the movable cavity, to extend a short distance outward from the connecting block 21 under the elastic force of the small spring 210. Specifically, a circular groove matching the outer diameter of the abutment ring 213 is provided on the side wall of the connecting block 21, and this circular groove is coaxially arranged with the locking hole 23. When the nut 25 and the locking bolt 24 are mated and threaded together, the abutment ring 213 will be embedded into the circular groove. Furthermore, as the nut 25 is tightened, the abutment ring 213 will press against the end of the abutment block 29, causing it to extend towards the mounting hole 22. The movement of the center side pushes the arc block 211 to slide towards the center side of the mounting hole 22. Furthermore, the protrusion 212 is set in the same inclined shape as the arc groove 27, so that the protrusion 212 will contact and abut against the outer surface of the arc piece 26 that enters the side of the arc block 211 as the arc block 211 moves. Through the setting of the inclined protrusion 212 and the arc groove 27, and the contact between the thread of the locking bolt 24 and the arc groove 27, the anti-slip effect of the arc piece 26 is achieved, which avoids the slippage and loosening between the shift fork body 1 and the shift fork rod set in the mounting hole 22 during long-term use under force, so as to ensure the service life of the shift fork body 1.

[0027] In this invention, during use, the shift fork rod is inserted into the mounting hole 22. At this time, the locking bolt 24 is aligned with the locking hole 23, and the abutment ring 213 of the nut 25 is aligned with the circular groove. The locking bolt 24 is rotated to make it threadedly connected with the nut 25. During this process, the arc-shaped piece 26 slides along the annular movable groove and intercepts the opening on the side of the connecting block 21 through the driving of the locking bolt 24. As the locking bolt 24 continues to rotate, the abutment ring 213 will squeeze the abutment block 29, causing the arc-shaped block 211 to press against the arc-shaped outer surface of the arc-shaped piece 26. With the locking bolt 24 and the arc-shaped block 211 restricting the position of the arc-shaped piece 26, the stability of the shift fork body 1 is better when it is installed and connected with the shift fork rod. It will not slip or shift between the shift fork rod and the shift fork body 1 due to insufficient contact area, thus ensuring the use effect of the shift fork body 1.

[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A shift fork with a resilient shift fork shaft mounting hole, comprising a shift fork body (1), characterized in that: The end of the shift fork body (1) is provided with a linkage component (2), the linkage component (2) including: A connecting block (21) is fixedly installed on the side wall of the shift fork body (1). A mounting hole (22) is provided at the center of the connecting block (21). A locking hole (23) is provided on the side wall of the connecting block (21). A locking bolt (24) is inserted inside the locking hole (23). A nut (25) is threaded on the outer surface of the end of the locking bolt (24). An arc-shaped movable groove is provided on the inner wall of the connecting block (21). An arc-shaped piece (26) is slidably connected to the inner surface of the arc-shaped movable groove. An arc-shaped groove (27) is provided on the outer surface of the arc-shaped piece (26) away from the center of the mounting hole (22). A cylindrical ridge (28) is fixedly installed on the outer surface of the arc-shaped piece (26) close to the center of the mounting hole (22). The abutment block (29) has a movable cavity on the inner wall of the connecting block (21). The abutment block (29) is slidably connected to the inner wall of the movable cavity. A small spring (210) is fixedly connected between the end of the abutment block (29) and the end inner wall of the movable cavity. An arc-shaped block (211) is fixedly installed on the side wall of the abutment block (29). A protruding ridge (212) is fixedly installed on the arc-shaped outer wall of the arc-shaped block (211) near the center of the mounting hole (22). An abutment ring (213) is fixedly installed on the outer surface of the nut (25) near the connecting block (21).

2. A shift fork with a flexible shift fork shaft mounting hole according to claim 1, characterized in that: The connecting block (21) is U-shaped, and the inner wall of the connecting block (21) on the side away from the fork body (1) is open.

3. A shift fork with a flexible shift fork shaft mounting hole according to claim 1, characterized in that: The number of locking holes (23) is set in two sets, and the two sets of locking holes (23) are symmetrically arranged with the horizontal central axis of the connecting block (21) as the axis of symmetry. The number of locking bolts (24) and nuts (25) corresponds to the number of locking holes (23).

4. A shift fork with a flexible shift fork shaft mounting hole according to claim 1, characterized in that: The upper and lower outer walls of the arc-shaped piece (26) are provided with arc-shaped bands, and the upper and lower inner surfaces of the arc-shaped movable groove are provided with arc-shaped guide grooves that are adapted to the arc-shaped bands.

5. A shift fork with a flexible shift fork shaft mounting hole according to claim 1, characterized in that: The connecting block (21) has a circular groove on its side wall that matches the outer diameter of the abutment ring (213), and the circular groove is coaxially arranged with the locking hole (23).

6. A shift fork with a resilient shift fork shaft mounting hole according to claim 1, characterized in that: The protruding ridge (212) is set in the same inclined shape as the arc groove (27).

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