Gearbox shifting block structure capable of resetting quickly

Abstract

The utility model relates to the technical field of transmissions, in particular to a fast reset gearbox shifting block structure which comprises a shifting block body installed in a gearbox body, the bottom end of the shifting block body is fixedly connected with a gear shifting fork, and a ball head rod is movably installed on the inner side of the top end of the shifting block body. A movable ball head is fixedly connected to the top end of the ball head rod, a rubber protective cover is fixedly installed on the top of the gearbox body and located on the outer side of the movable ball head, a gear lever is fixedly connected to the top end of the movable ball head, and a sealing cover is arranged at the bottom end of the gear lever and located on the outer side of the movable ball head in a sleeving mode. By means of the design, the shifting block can be rapidly reset when the gearbox is in a neutral gear, follow-up gear shifting is more flexible, operation efficiency is improved, and damage caused by misoperation can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of transmission technology, specifically to a fast-reset transmission pull-out block structure. Background Technology

[0002] The gearbox shift block is the core force transmission component in the shifting mechanism. It is usually fixed on the top of the shift fork shaft and has grooves on its surface. It is used to cooperate with the ball head at the end of the shift lever to transmit shifting force. As a force transmission medium, the shift block converts the movement of the ball head into the axial displacement of the shift fork shaft, directly controlling the gear position.

[0003] Currently, when the gearbox is in neutral, the master shift lever cannot automatically return to its original position, making it difficult for it to automatically stop at the designated neutral position. This also prevents the shift lever connected to the ball joint at the end of the shift lever from resetting. As a result, the shifting path can only be found by feel during operation, which not only easily leads to inflexible shifting, which greatly affects operating efficiency, but also easily causes the shift lever to be accidentally operated, causing the shift lever to move and impact randomly inside the gearbox, resulting in damage to the shift lever and the internal parts of the gearbox.

[0004] Therefore, it is of great importance to design a fast-resetting gearbox pull-out block structure to solve the above-mentioned defects. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model designs a fast-resetting gearbox shifter structure. This gearbox shifter structure aims to solve the technical problem that, under existing technologies, when the gearbox is in neutral, the shifter cannot automatically reset, which not only easily leads to inflexible gear shifting but also easily causes accidental operation of the gear lever, resulting in the shifter moving haphazardly inside the gearbox and causing damage to the shifter and the gearbox interior.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quick-reset gearbox lever structure includes a lever body installed inside the gearbox body. A shift fork is fixedly connected to the bottom end of the lever body. A ball joint rod is movably installed on the inner side of the top end of the lever body. A movable ball joint is fixedly connected to the top end of the ball joint rod. A rubber protective cover is fixedly installed on the top of the gearbox body and outside the movable ball joint. A gear shift lever is fixedly connected to the top end of the movable ball joint. A sealing cover is fitted on the bottom end of the gear shift lever and outside the movable ball joint. A reset mechanism is fixedly installed on the top of the gearbox body and outside the gear shift lever.

[0008] The reset mechanism includes a first fixed frame and a second fixed frame fixedly installed on the left and right sides of the gear shift lever. A limit plate and a limit frame are rotatably connected to opposite sides of the first fixed frame and the second fixed frame, respectively. A telescopic rod is fixedly connected to the top of the second fixed frame, and a top block is fixedly connected to the bottom of the telescopic rod. A reset block is fixedly connected to the right side of the limit frame at a position corresponding to the top block.

[0009] As a preferred embodiment of this utility model, the rear ends of the first fixing frame and the second fixing frame are both fixedly connected to the gearbox body by mounting screws, and the bottom ends of the limiting plate and the limiting frame are rotatably connected to the first fixing frame and the second fixing frame respectively by rotating shafts.

[0010] As a preferred embodiment of this utility model, the left end of the limiting frame is fixedly connected to the limiting plate by fixing screws, and protective pads are fixedly connected to the inner sides of both the limiting frame and the limiting plate.

[0011] As a preferred embodiment of this utility model, the telescopic rod is composed of a connecting cylinder and a top column. The connecting cylinder is fixedly connected to the top of the second fixing frame, the top column is slidably connected to the inside of the connecting cylinder, and the bottom end of the top column is fixedly connected to the top block. A return spring is sleeved on the outside of the top column and inside the connecting cylinder, and a top ring is fixedly connected on the outside of the top column and at the bottom end of the return spring.

[0012] As a preferred embodiment of this utility model, guide blocks are fixedly connected to the inner side of the second fixing frame and at both the front and rear ends of the top block, and both the front and rear ends of the top block are slidably connected to the guide blocks.

[0013] As a preferred embodiment of this utility model, the bottom end of the rubber protective cover is fixedly connected to the top of the gearbox body through a mounting base, and a gear shift groove is provided inside the mounting base and on the outside of the ball joint rod.

[0014] As a preferred embodiment of this utility model, a connecting ring is fixedly connected to the bottom end of the outer side of the gear shift lever, and a fastening spring is fixedly connected to the bottom of the connecting ring, and the fastening spring abuts against the sealing cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, the reset mechanism is designed so that after the first and second fixed brackets are installed on the outside of the gear lever, the limiting plate and the limiting frame can rotate back and forth, allowing the gear lever to operate back and forth. At the same time, the space inside the limiting frame allows the gear lever to swing left and right for normal gear shifting. When the gearbox is in neutral, the telescopic rod pushes the top block downwards, causing the top block to abut against the inside of the reset block. Because the limiting plate and the limiting frame can rotate, when the top block is pushed down, guided by the inclined groove inside the reset block, the top block will always abut against the middle of the inside of the reset block, thus keeping the limiting plate and the limiting frame in a perpendicular state. Because the limiting frame restricts the range of motion of the gear lever, it also controls the gear lever to automatically reset after the limiting plate and the limiting frame are perpendicular. After the gear lever is reset vertically, the bottom end of the ball joint will drive the shifter body to reset quickly. This not only makes subsequent gear shifting more flexible and improves operating efficiency, but also avoids damage to the shifter body and the inside of the gearbox due to misoperation. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the internal structure of the gearbox body of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the rubber protective cover of this utility model;

[0020] Figure 4 This is a schematic diagram of part of the structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the reset mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the limiting plate structure of this utility model.

[0023] In the diagram: 1. Gearbox body; 2. Shift block body; 3. Shift fork; 4. Ball joint rod; 5. Movable ball joint; 6. Rubber protective cover; 601. Mounting base; 602. Gearbox groove; 7. Gear shift lever; 701. Connecting ring; 702. Fastening spring; 8. Sealing cover; 9. Reset mechanism; 901. First fixing frame; 902. Second fixing frame; 903. Limiting plate; 904. Limiting frame; 905. Telescopic rod; 906. Top block; 907. Reset block; 908. Mounting screw; 909. Rotating shaft; 910. Fixing screw; 911. Protective pad; 912. Connecting cylinder; 913. Top column; 914. Reset spring; 915. Top ring; 916. Guide block. Detailed Implementation

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

[0025] Example: Please refer to Figures 1-6 This utility model provides a technical solution:

[0026] A quick-reset gearbox lever structure includes a lever body 2 installed inside a gearbox body 1. A shift fork 3 is fixedly connected to the bottom end of the lever body 2. A ball joint rod 4 is movably installed on the inner side of the top end of the lever body 2. A movable ball joint 5 is fixedly connected to the top end of the ball joint rod 4. A rubber protective cover 6 is fixedly installed on the top of the gearbox body 1 and outside the movable ball joint 5. A gear shift lever 7 is fixedly connected to the top end of the movable ball joint 5. A sealing cover 8 is fitted on the bottom end of the gear shift lever 7 and outside the movable ball joint 5. A reset mechanism 9 is fixedly installed on the top of the gearbox body 1 and outside the gear shift lever 7.

[0027] First, in this embodiment, the specific structure of the reset mechanism 9 is as follows:

[0028] The reset mechanism 9 includes a first fixed bracket 901 and a second fixed bracket 902 fixedly installed on the left and right sides of the gear lever 7. A limit plate 903 and a limit frame 904 are rotatably connected to opposite sides of the first fixed bracket 901 and the second fixed bracket 902, respectively. A telescopic rod 905 is fixedly connected to the top of the second fixed bracket 902, and a top block 906 is fixedly connected to the bottom of the telescopic rod 905. A reset block 907 is fixedly connected to the right side of the limit frame 904 at a position corresponding to the top block 906. After the first fixed bracket 901 and the second fixed bracket 902 are installed on the outside of the gear lever 7, the limit plate 903 and the limit frame 904 can rotate back and forth, allowing the gear lever 7 to operate back and forth. Simultaneously, the space inside the limit frame 904 allows the gear lever 7 to swing left and right for normal gear shifting. When the gearbox body 1 is in neutral... Because the telescopic rod 905 pushes the top block 906 downwards, the top block 906 abuts against the inside of the reset block 907. Since the limiting plate 903 and the limiting frame 904 can rotate, when the top block 906 pushes downwards, guided by the inclined groove inside the reset block 907, the top block 906 will always abut against the middle of the inside of the reset block 907, thus keeping the limiting plate 903 and the limiting frame 904 in a perpendicular state. Because the limiting frame 904 restricts the range of motion of the gear lever 7, after the limiting plate 903 and the limiting frame 904 are perpendicular, the gear lever 7 will also be controlled to automatically reset. After the gear lever 7 is reset vertically, the bottom end of the ball joint 4 will drive the shift block body 2 to reset quickly. This not only makes subsequent gear shifting more flexible and improves operating efficiency, but also avoids damage to the shift block body 2 and the inside of the gearbox body 1 caused by misoperation.

[0029] Furthermore, the rear ends of the first fixing bracket 901 and the second fixing bracket 902 are fixedly connected to the gearbox body 1 by mounting screws 908. The bottom ends of the limiting plate 903 and the limiting frame 904 are rotatably connected to the first fixing bracket 901 and the second fixing bracket 902 respectively by rotating shafts 909. The first fixing bracket 901 and the second fixing bracket 902 are installed and fixed by mounting screws 908, thereby facilitating the installation of the reset mechanism 9 on the outside of the gear lever 7.

[0030] Then, the left end of the limiting frame 904 is fixedly connected to the limiting plate 903 by the fixing screw 910. The inner sides of the limiting frame 904 and the limiting plate 903 are both fixedly connected with protective pads 911. When installing and fixing the first fixing frame 901 and the second fixing frame 902, the first fixing frame 901 is installed and fixed first, and then the limiting frame 904 and the limiting plate 903 are assembled and fixed before the second fixing frame 902 is installed and fixed. This makes it easier to limit the movement of the gear lever 7 after assembly.

[0031] Furthermore, the telescopic rod 905 is composed of a connecting cylinder 912 and a top column 913. The connecting cylinder 912 is fixedly connected to the top of the second fixed frame 902, and the top column 913 is slidably connected to the inside of the connecting cylinder 912. The bottom end of the top column 913 is fixedly connected to the top block 906. A return spring 914 is sleeved on the outside of the top column 913 and inside the connecting cylinder 912. A top ring 915 is fixedly connected on the outside of the top column 913 and at the bottom end of the return spring 914. Under the action of the return spring 914, the top ring 915 is always pressed against the top column 913, so that the top column 913 always extends downward, thereby allowing the top block 906 to always press against the return block 907. Thus, when the gearbox body 1 is in neutral, the limit frame 904 automatically straightens and resets the gear shift lever 7. After the gear shift lever 7 is reset vertically, the bottom end of the ball joint 4 will drive the shift block body 2 to reset quickly.

[0032] In this case, guide blocks 916 are fixedly connected to the inner side of the second fixed frame 902 and at both the front and rear ends of the top block 906. Both the front and rear ends of the top block 906 are slidably connected to the guide blocks 916. When the top block 906 moves down and abuts against the reset block 907, the top block 906 can move stably under the connection of the guide blocks 916.

[0033] Secondly, the bottom end of the rubber protective cover 6 is fixedly connected to the top of the gearbox body 1 through the mounting base 601. The mounting base 601 has a gear shift groove 602 inside and outside the ball joint 4. After the rubber protective cover 6 is installed on the top of the gearbox body 1 through the mounting base 601, the rubber protective cover 6 protects the outside of the ball joint 4 and the movable ball joint 5. At the same time, when the gear shift lever 7 shifts gears, the rubber protective cover 6 can adapt to the shifting process through deformation. When shifting gears, the ball joint 4 is engaged in different positions in the gear shift groove 602 to shift gears.

[0034] Finally, a connecting ring 701 is fixedly connected to the bottom of the outer side of the gear shift lever 7. A fastening spring 702 is fixedly connected to the bottom of the connecting ring 701, and the fastening spring 702 abuts against the sealing cover 8. The fastening spring 702 at the bottom of the connecting ring 701 always abuts against the sealing cover 8, thereby ensuring the sealing of the top of the rubber protective cover 6.

[0035] In this embodiment, the specific implementation scenario is as follows: After the first fixing bracket 901 and the second fixing bracket 902 are installed on the outside of the gear shift lever 7, the limiting plate 903 and the limiting frame 904 can rotate back and forth to allow the gear shift lever 7 to operate back and forth. At the same time, the space inside the limiting frame 904 allows the gear shift lever 7 to swing left and right for normal gear shifting. When the gearbox body 1 is in neutral, because the telescopic rod 905 pushes the top block 906 downward, the top block 906 abuts against the inner side of the reset block 907. And because the limiting plate 903 and the limiting frame 904 can rotate, when the top block 906 pushes down, the inclined groove inside the reset block 907... Under the guidance, the top block 906 will always abut against the middle of the inner side of the reset block 907, so that the limiting plate 903 and the limiting frame 904 are in a perpendicular state. Because the limiting frame 904 restricts the range of motion of the gear lever 7, the gear lever 7 will also be automatically reset after the limiting plate 903 and the limiting frame 904 are perpendicular. After the gear lever 7 is reset vertically, the bottom end of the ball joint 4 will drive the shift block body 2 to reset quickly. The whole operation process is simple and convenient. This utility model can make the shift block reset quickly when the gearbox is in neutral, which not only makes subsequent gear shifting more flexible and improves operating efficiency, but also avoids injury caused by misoperation.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick reset gearshift puller structure, comprising a puller body (2) installed inside a gearshift body (1), characterized in that: The bottom end of the shifting block body (2) is fixedly connected with a shift fork (3), the inner side of the top end of the shifting block body (2) is movably installed with a ball head rod (4), the top end of the ball head rod (4) is fixedly connected with a movable ball head (5), the top of the gearbox body (1) and outside the movable ball head (5) is fixedly installed with a rubber protective cover (6), the top end of the movable ball head (5) is fixedly connected with a gear lever (7), the bottom end of the gear lever (7) and outside the movable ball head (5) is sleeved with a sealing cover (8), the top of the gearbox body (1) and outside the gear lever (7) is fixedly installed with a reset mechanism (9). The reset mechanism (9) comprises first and second fixed frames (901) and (902) fixedly installed on the left and right sides of the gear lever (7), the opposite sides of the first and second fixed frames (901) and (902) are respectively rotatably connected with a limiting plate (903) and a limiting frame (904), the top end of the second fixed frame (902) is fixedly connected with an extension rod (905), the bottom end of the extension rod (905) is fixedly connected with a top block (906), and the right side of the limiting frame (904) and the position corresponding to the top block (906) are fixedly connected with a reset block (907).

2. The quick reset gearbox puller block structure of claim 1, wherein: The rear ends of the first and second fixed frames (901) and (902) are fixedly connected with the gearbox body (1) through mounting screws (908), and the bottom ends of the limiting plate (903) and the limiting frame (904) are rotatably connected with the first and second fixed frames (901) and (902) through rotating shafts (909).

3. The quick reset gear puller block structure of claim 1, wherein: The left end of the limiting frame (904) is fixedly connected with the limiting plate (903) through a fixing screw (910), and the inner sides of the limiting frame (904) and the limiting plate (903) are fixedly connected with protective pads (911).

4. The quick reset gear puller block structure of claim 1, wherein: The extension rod (905) is composed of a connecting cylinder (912) and a top column (913), the connecting cylinder (912) is fixedly connected to the top end of the second fixed frame (902), the top column (913) is slidably connected to the inside of the connecting cylinder (912), the bottom end of the top column (913) is fixedly connected with the top block (906), a reset spring (914) is sleeved on the outside of the top column (913) and inside the connecting cylinder (912), and a top ring (915) is fixedly connected to the outside of the top column (913) and the bottom end of the reset spring (914).

5. The quick reset gear puller block structure of claim 1, wherein: The inner sides of the second fixed frame (902) and the front and rear ends of the top block (906) are fixedly connected with guide blocks (916), and the front and rear ends of the top block (906) are slidably connected with the guide blocks (916).

6. The quick reset gearbox puller block structure of claim 1, wherein: The bottom end of the rubber protective cover (6) is fixedly connected with the top of the gearbox body (1) through a mounting seat (601), and a gear shifting groove (602) is formed in the inside of the mounting seat (601) and outside the ball head rod (4).

7. The quick reset gear puller block structure of claim 1, wherein: The bottom end outside of the gear lever (7) is fixedly connected with a connecting ring (701), the bottom of the connecting ring (701) is fixedly connected with a fastening spring (702), and the fastening spring (702) is in abutment with the sealing cover (8).

Images