Gear shifter assembly for motor vehicle

Abstract

The gear shifter assembly for the motor vehicle comprises a support, a swing arm and a gear shifting rod, the support comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with two parallel supporting plates, the swing arm is arranged between the two supporting plates, the rear end of the swing arm is fixedly connected with the gear shifting rod, and a pull wire shaft is arranged at the front end of the swing arm. The two supporting plates and the swing arm are provided with through first pin shafts, the first pin shafts are sleeved with torsional springs, the supporting plates are provided with blocking shafts abutting against one ends of the torsional springs, and the other ends of the torsional springs abut against the lower end of the swing arm; a second pin shaft is arranged on the rear side of the swing arm and penetrates through a supporting plate and a long-strip-shaped clamping plate, a clamping groove with a forward opening is formed in the lower end of the clamping plate, a clamping rod matched with the clamping groove is arranged on the supporting plate, the upper end of the clamping plate is connected with a pull wire, and a gear shifting assembly used for tensioning or loosening the pull wire and a self-locking assembly are arranged at the end of the gear shifting rod. The gear shifting mechanism is reasonable in structure, fast in gear shifting response, good in gear locking performance after gear shifting, easy and convenient to install and maintain, safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of motor vehicles, in particular to a shift lever assembly for motor vehicles. Background Art

[0002] At present, a motor vehicle gearbox gear changing system generally consists of a shift fork shaft, a shift fork sleeved on the shift fork shaft, a spring sleeved on the shift fork shaft and located between the shift fork and the box body, and a shift lever, etc. The shift lever mechanism is installed on the vehicle body through a bracket and is connected to the shift fork through a wire rope to complete gear shifting; when shifting gears again, the wire rope is restored, and the shift fork shaft is restored to the previous gear through the spring.

[0003] Since the gear shifting operation is performed by pulling the wire rope during the gear shifting process, and the wire rope is usually made of flexible material, during the rotation of the shift lever, the response of the wire rope is slow, and the rotation amplitude of the shift lever needs to be large, resulting in inconvenient installation and use of the shift lever. After gear shifting, the gear locking property is poor, the gear is easy to jump with the road conditions, etc., and even cause traffic accidents. Summary of the Utility Model

[0004] The utility model provides a shift lever assembly for motor vehicles, which has fast gear shifting response, good gear locking property after gear shifting, simple installation and maintenance, and is safe and reliable.

[0005] The above object of the utility model is achieved through the following technical solutions:

[0006] A shift lever assembly for motor vehicles, comprising a bracket, a swing arm and a shift lever. The bracket includes a bottom plate, and two parallel support plates are fixedly connected to the upper surface of the bottom plate. A swing arm is arranged between the two support plates. The rear end of the swing arm is fixedly connected to the shift lever. A wire rope shaft for gear shifting is arranged at the front end of the swing arm. A first pin shaft penetrates through the two support plates and the swing arm. A torsion spring is sleeved on the first pin shaft. A stop shaft is arranged on the support plate and abuts against one end of the torsion spring. The other end of the torsion spring abuts against the lower end of the swing arm; a second pin shaft is arranged at the rear side of the swing arm. The second pin shaft penetrates through the support plate and a strip-shaped clamping plate respectively. A clamping groove with a forward opening is arranged at the lower end of the clamping plate. A clamping rod adapted to the clamping groove is arranged on the support plate. A wire rope is connected to the upper end of the clamping plate. A gear shifting assembly for tightening or loosening the wire rope and a self-locking assembly for locking the gear shifting assembly are arranged at the end of the shift lever.

[0007] In the above shift lever assembly for motor vehicles, the swing arm is V-shaped, and the swing arm includes two parallel side plates, and the swing arm is located between the two support plates.

[0008] In the above shift lever assembly for motor vehicles, the shift lever is a hollow tube, and the wire rope is arranged in the inner cavity of the shift lever.

[0009] The above-mentioned shift lever assembly for a motor vehicle, wherein the shift component includes a ball head housing, a compression spring, a shift button, and a V-shaped connecting rod. The V-shaped opening of the connecting rod faces upward. The ball head housing is fixedly connected to the end of the shift lever. A necked retaining ring is provided on one side near the end of the inner cavity of the shift lever. The compression spring is embedded in the inner cavity of the end of the shift lever and abuts against the retaining ring. The shift button is located on the front side of the ball head housing and extends into the ball head housing. The rear end of the shift button is hinged to the front end of the connecting rod. A shaft rod connected to the ball head housing is inserted through the middle of the connecting rod. The bottom of the rear end of the connecting rod abuts against the other end of the compression spring. The other end of the cable passes through the compression spring and is connected to the rear end of the connecting rod.

[0010] The above-mentioned shift lever assembly for a motor vehicle, wherein the ball head housing includes a ball head seat and a ball head cover. The ball head seat is fixed to the end of the shift lever, and the ball head cover is detachably connected to the ball head seat.

[0011] The above-mentioned shift lever assembly for a motor vehicle, wherein the self-locking component includes a limit block, an unlocking rod, a sliding rod, and a sliding frame. The limit block is arranged at the rear end of the connecting rod. A limit hole is provided on the limit block. The sliding frame is fixed in the inner cavity of the ball head housing. The sliding rod is slidably arranged on the sliding frame. A locking post adapted to the limit hole is provided at the front end of the sliding rod. The unlocking rod is slidably arranged on the ball head housing and is perpendicular to the sliding rod. A frustum-shaped portion with a larger upper part and a smaller lower part is provided at the bottom of the unlocking rod. A convex platform extending towards the frustum-shaped portion is provided at the front part of the sliding rod. An inclined surface adapted to the conical surface of the frustum-shaped portion is provided on the front end surface of the convex platform. A reset component for driving the sliding rod to move towards the limit block is provided at one end of the sliding rod away from the locking post.

[0012] The above-mentioned shift lever assembly for a motor vehicle, wherein the sliding frame includes a slider and a support rod. A sliding hole adapted to the sliding rod is provided in the middle of the slider. A limit groove is provided along the length direction of the sliding rod. A slider adapted to the limit groove is provided in the sliding hole. The opposite ends of the slider are respectively fixedly connected to the support rods, and the other ends of the two support rods are respectively fixedly connected to the ball head housing.

[0013] The above-mentioned shift lever assembly for a motor vehicle, wherein the reset component includes a stop block and a reset spring. The reset spring is sleeved on one end of the sliding rod away from the locking post. The stop block is arranged on the sliding rod on the side of the slider close to the reset spring. One end of the reset spring abuts against the stop block, and the other end of the reset spring abuts against the inner cavity of the ball head housing.

[0014] The above-mentioned shift lever assembly for a motor vehicle, wherein a circlip is provided on one side of the inner cavity of the ball head housing where the unlocking rod is located. A restoring spring is sleeved on the outside of the unlocking rod located outside the ball head housing. A pressing head is fixedly connected to the outer end of the unlocking rod. One end of the restoring spring abuts against the outer wall of the ball head housing, and the other end of the restoring spring abuts against the pressing head. A limiting cylinder is provided outside the restoring spring, and the bottom of the limiting cylinder is fixedly connected to the outer wall of the ball head housing.

[0015] The above-mentioned shift lever assembly for a motor vehicle, wherein mounting holes are provided on the bottom plate.

[0016] In summary, the beneficial technical effects of the present utility model are as follows:

[0017] The shift response of the shift assembly of the present utility model is fast, the gear locking performance after shifting is good, the installation and maintenance are simple, and it is safe and reliable. Description of the Drawings

[0018] Figure 1 is a schematic structural view of the present utility model.

[0019] Figure 2 is a schematic cross-sectional structural view of the gear shifting of the present utility model;

[0020] Figure 3 is Figure 1 an enlarged view of part A of

[0021] Figure 4 is a schematic structural view of the gear disengaging of the present utility model.

[0022] As shown in the figure, 1. Bracket; 11. Bottom plate; 111. Mounting hole; 12. Support plate; 121. First pin shaft; 1211. Torsion spring; 122. Stop shaft; 123. Second pin shaft; 124. Clamping rod; 2. Swing arm; 21. Side plate; 22. Cable shaft; 3. Shift lever; 31. Retaining ring; 4. Clamping plate; 41. Card slot; 5. Cable; 6. Shift assembly; 61. Ball head housing; 611. Ball head seat; 612. Ball head cover; 62. Compression spring; 63. Shift button; 64. Link rod; 641. Shaft rod; 7. Self-locking assembly; 71. Limit block; 72. Unlock lever; 721. Conical part; 722. Snap ring; 723. Pressing head; 73. Slide bar; 731. Locking column; 732. Boss; 74. Slide frame; 741. Slide block; 742. Support rod; 75. Return spring; 8. Recovery spring; 9. Limit cylinder. Detailed Description of the Preferred Embodiment

[0023] The following further describes the present utility model in detail with reference to the accompanying Figures 1-4 drawings.

[0024] As Figure 1 , 2 shown, a shift lever assembly for a motor vehicle includes a bracket 1, a swing arm 2 and a shift lever 3. The bracket 1 includes a horizontal bottom plate 11, mounting holes 111 are provided on the bottom plate 11, and two parallel support plates are fixedly connected to the upper surface of the bottom plate

[0025] 12, the support plate 12 is perpendicular to the bottom plate 11, a swing arm 2 is provided between the two support plates 12, the rear end of the swing arm 2 is fixedly connected to the shift lever 3, the front end of the swing arm 2 is provided with a pull-wire shaft 22 for shifting, the two support plates 12 and the swing arm 2 are provided with a first pin shaft 121 penetrating therethrough, the swing arm 2 can rotate on the support plate 12 with the first pin shaft 121 as the axis, a torsion spring 1211 is sleeved on the first pin shaft 121, a blocking shaft 122 abutting against one end of the torsion spring 1211 is provided on the support plate 12, and the other end of the torsion spring 1211 abuts against the swing arm The lower end of the arm 2; a second pin shaft 123 is provided on the rear side of the swing arm 2, and the second pin shaft 123 passes through the support plate 12 and the long strip-shaped card plate 4 respectively. The card plate 4 can rotate on the support plate 12 with the second pin shaft 123 as the axis, and a card slot 41 opening forward is provided at the lower end of the card plate 4, and a card rod 124 adapted to the card slot 41 is provided on the support plate 12. The upper end of the card plate 4 is connected to the pull wire 5, and the end of the shift lever 3 is provided with a shift assembly 6 for tightening or loosening the pull wire 5 and a self-locking assembly 7 for locking the shift assembly 6.

[0026] like Figure 1 , 2 As shown, the swing arm 2 in this facility example is V-shaped, and the swing arm 2 includes two side plates 21 parallel to each other. The swing arm 2 is located between the two support plates 12, and the torsion spring 1211 is sleeved on the first pin shaft 121 between the two side plates 21.

[0027] The shift lever 3 of this embodiment is a hollow tube, and the pull wire 5 is passed through the inner cavity of the shift lever 3 .

[0028] like Figures 2-4 As shown, the shift assembly 6 includes a ball head shell 61, a compression spring 62, a shift button 63 and a V-shaped connecting rod 64, the V-shaped opening of the connecting rod 64 faces upward, the ball head shell 61 is fixedly connected to the end of the shift rod 3, and the inner cavity of the shift rod 3 is provided with a necked retaining ring 31 near the end side, the compression spring 62 is embedded in the inner cavity of the end of the shift rod 3 and abuts against the retaining ring 31, the shift button 63 is located on the front side of the ball head shell 61 and extends into the ball head shell 61, the rear end of the shift button 63 is hinged to the front end of the connecting rod 64, and a shaft 641 connected to the ball head shell 61 is penetrated in the middle of the connecting rod 64, the rear end bottom of the connecting rod 64 abuts against the other end of the compression spring 62, the other end of the pull wire 5 passes through the compression spring 62 and is connected to the rear end of the connecting rod 64, and the pull wire 5 can be made of iron wire; by providing the compression spring 62, the fixed clamping plate 4 can always be subjected to the tension of the compression spring 62 through the pull wire 5.

[0029] By rotating the shift lever 3, the swing arm 2 can be driven to rotate around the first pin shaft 121 and locked in a desired gear position, so that the pull-wire shaft 22 controls the corresponding gear position of the motor vehicle.

[0030] like Figure 2 , 3As shown in the figure, the self-locking assembly 7 includes a limit block 71, an unlocking rod 72, a sliding rod 73 and a sliding carriage 74. The limit block 71 is arranged at the rear end of the connecting rod 64. A limit hole is provided on the limit block 71. The sliding carriage 74 is fixed inside the ball head housing 61. The sliding rod 73 is slidably arranged on the sliding carriage 74. A locking post 731 adapted to the limit hole is provided at the front end of the sliding rod 73. The unlocking rod 72 is slidably arranged on the ball head housing 61 and is perpendicular to the sliding rod 73. A frustum portion 721 with a larger upper part and a smaller lower part is provided at the bottom of the unlocking rod 72. A convex platform 732 extending towards the frustum portion 721 is provided at the front part of the sliding rod 73. An inclined surface adapted to the conical surface of the frustum portion 721 is provided on the front end surface of the convex platform 732. A reset assembly for driving the sliding rod 73 to move towards the limit block 71 is provided at one end of the sliding rod 73 away from the locking post 731.

[0031] After shifting gears, at this time, the card slot 41 on the clamping plate 4 is clamped with the clamping rod 124. The sliding rod 73 then drives the locking post 731 on the sliding rod 73 to insert into the limit hole on the limit block 71 under the action of the reset assembly, thereby self-locking the rotation of the connecting rod 64, effectively preventing the occurrence of gear disengagement accidents due to other external forces after shifting gears, and ensuring the safety of motor vehicle driving.

[0032] As Figures 1-3 shown, the sliding carriage 74 of this embodiment includes a slider 741 and a support rod 742. A sliding hole adapted to the sliding rod 73 is provided in the middle of the slider 741. A limit groove is provided along the length direction of the sliding rod 73. A convex strip adapted to the limit groove is provided in the sliding hole. The two ends of the slider 741 in the direction perpendicular to the sliding hole are respectively fixedly connected to the support rods 742. The other ends of the two support rods 742 are respectively fixedly connected to the ball head housing 61. By setting the cooperation of the limit groove and the convex strip, the sliding rod 73 can be prevented from rotating on the slider 741, ensuring that the sliding rod 73 makes a linear motion on the slider 741.

[0033] The reset assembly includes a stop block and a reset spring 75. The reset spring 75 is sleeved on one end of the sliding rod 73 away from the locking post 731. The stop block is arranged on the sliding rod 73 on the side of the slider 741 close to the reset spring 75. One end of the reset spring 75 abuts against the stop block, and the other end of the reset spring 75 abuts against the inner cavity of the ball head housing 61.

[0034] As Figure 3 shown, after shifting gears is completed, the limit block 71 on the connecting rod 64 is reset. At this time, the unlocking rod 72 is released. The reset spring 75 drives the sliding rod 73 to slide towards the limit block 71 through the stop block in contact with it, and finally the locking post 731 on the sliding rod 73 is inserted into the limit hole of the limit block 71, realizing the self-locking of the rotation of the connecting rod 64, avoiding the occurrence of gear disengagement accidents caused by external reasons, and ensuring the safe operation of the locomotive.

[0035] As Figure 3As shown, a circlip 722 is provided on one side of the inner cavity of the ball head housing 61 where the unlocking rod 72 is located. A restoring spring 8 is sleeved outside the unlocking rod 72 on the outer side of the ball head housing 61. The outer end of the unlocking rod 72 is fixedly connected to a pressing head 723. One end of the restoring spring 8 abuts against the outer wall of the ball head housing 61, and the other end of the restoring spring 8 abuts against the pressing head 723. A limiting cylinder 9 is provided outside the restoring spring 8, and the bottom of the limiting cylinder 9 is fixedly connected to the outer wall of the ball head housing 61. By providing the circlip 722 and the limiting cylinder 9, the moving position of the unlocking rod 72 can be limited, ensuring that the boss 732 and the frustum portion 721 are always in a fitting state, and ensuring the smooth operation of the self-locking assembly 7.

[0036] For the convenience of installation and maintenance, the ball head housing 61 includes a ball head seat 611 and a ball head cover 612. The ball head seat 611 is fixed to the end of the shift lever 3, and the ball head cover 612 is detachably connected to the ball head seat 611.

[0037] The working process of the present utility model is as follows: Figure 2 、 3 It is a structural schematic diagram for gear shifting. Figure 4 It is a structural schematic diagram for gear disengaging. When gear disengaging is required, first apply force to the pressing head 723, the unlocking rod 72 moves downward, the frustum portion 721 and the boss 732 are squeezed, and at the same time, the sliding rod 73 is pushed to overcome the elastic force of the restoring spring 8, so that the locking column 731 is separated from the limiting hole on the limiting block 71, realizing the unlocking of the shifting assembly 6; then press the shift button 63, the driving link 64 rotates clockwise, the wire 5 drives the clamping plate 4 to rotate counterclockwise, so that the clamping groove 41 is separated from the clamping rod 124, realizing gear disengaging; rotate the shift lever 3 to shift gears. After the gear position is in place, the compression spring 62 drives the wire 5 to apply a clockwise pulling force to the clamping plate 4, and finally the gear shifting operation is completed. Then release the shift button 63 first, and then release the pressing head 723, so that the sliding rod 73, under the action of the return spring 75, the locking column 731 is inserted into the limiting hole of the limiting block 71, realizing the self-locking of the gear position.

[0038] The embodiments of the present specific implementation manners are all preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A shift lever assembly for a motor vehicle, comprising a bracket, a swing arm and a shift lever. The bracket includes a bottom plate, and two parallel support plates are fixedly connected to the upper surface of the bottom plate. A swing arm is arranged between the two support plates, and the rear end of the swing arm is fixedly connected to the shift lever. It is characterized in that, A wire shaft for shifting is provided at the front end of the swing arm. A first pin shaft penetrates through the two support plates and the swing arm. A torsion spring is sleeved on the first pin shaft. A stop shaft that abuts against one end of the torsion spring is provided on the support plate, and the other end of the torsion spring abuts against the lower end of the swing arm. A second pin shaft is provided at the rear side of the swing arm. The second pin shaft penetrates through the support plate and the strip-shaped clamping plate respectively. A clamping groove with a forward opening is provided at the lower end of the clamping plate. A clamping rod adapted to the clamping groove is provided on the support plate. The upper end of the clamping plate is connected to the wire. A shifting assembly for tightening or loosening the wire and a self-locking assembly for locking the shifting assembly are provided at the end of the shifting lever.

2. The shift lever assembly for a motor vehicle according to claim 1, characterized in that, The swing arm is V-shaped and includes two parallel side plates. The swing arm is located between the two support plates.

3. The shift lever assembly for a motor vehicle according to claim 1, characterized in that, The shifting lever is a hollow tube, and the wire is arranged in the inner cavity of the shifting lever.

4. The shift lever assembly for a motor vehicle according to claim 1, characterized in that, The shifting assembly includes a ball head shell, a compression spring, a shifting button and a V-shaped connecting rod. The V-shaped opening of the connecting rod faces upward. The ball head shell is fixedly connected to the end of the shifting lever. A necked retaining ring is provided on one side of the inner cavity of the shifting lever near the end. The compression spring is embedded in the inner cavity of the end of the shifting lever and abuts against the retaining ring. The shifting button is located on the front side of the ball head shell and extends into the ball head shell. The rear end of the shifting button is hinged to the front end of the connecting rod. A shaft rod connected to the ball head shell is arranged through the middle of the connecting rod. The bottom of the rear end of the connecting rod abuts against the other end of the compression spring. The other end of the wire passes through the compression spring and is connected to the rear end of the connecting rod.

5. The shift lever assembly for a motor vehicle according to claim 4, characterized in that, The ball head shell includes a ball head seat and a ball head cover. The ball head seat is fixed at the end of the shifting lever, and the ball head cover is detachably connected to the ball head seat.

6. The shift lever assembly for a motor vehicle according to claim 4, characterized in that, The self-locking assembly includes a limit block, an unlocking rod, a sliding rod and a sliding frame. The limit block is arranged at the rear end of the connecting rod. A limit hole is provided on the limit block. The sliding frame is fixed in the inner cavity of the ball head shell. The sliding rod is slidably arranged on the sliding frame. A locking post adapted to the limit hole is provided at the front end of the sliding rod. The unlocking rod is slidably arranged on the ball head shell and is perpendicular to the sliding rod. A frustum-shaped portion with a larger upper part and a smaller lower part is provided at the bottom of the unlocking rod. A convex platform extending towards the frustum-shaped portion is provided at the front part of the sliding rod. An inclined surface adapted to the conical surface of the frustum-shaped portion is provided on the front end surface of the convex platform. A reset assembly for driving the sliding rod to move towards the limit block is provided at one end of the sliding rod away from the locking post.

7. The shift lever assembly for a motor vehicle according to claim 6, characterized in that, The sliding frame includes a slider and a support rod. A sliding hole adapted to the sliding rod is provided in the middle of the slider. A limit groove is arranged along the length direction of the sliding rod. A slider adapted to the limit groove is provided in the sliding hole. The opposite ends of the slider are respectively fixedly connected to the support rods, and the other ends of the two support rods are respectively fixedly connected to the ball head shell.

8. The shift lever assembly for a motor vehicle according to claim 6, characterized in that, The reset assembly includes a stop block and a reset spring. The reset spring is sleeved on one end of the sliding rod away from the locking post. The stop block is arranged on the sliding rod on one side of the slider close to the reset spring. One end of the reset spring abuts against the stop block, and the other end of the reset spring abuts against the inner cavity of the ball head shell.

9. The shift lever assembly for a motor vehicle according to claim 6, characterized in that, A retaining spring is provided on one side of the inner cavity of the ball head housing where the unlocking lever is located. A return spring is sleeved outside the ball head housing where the unlocking lever is located. The outer end of the unlocking lever is fixedly connected to a pressing head. One end of the return spring abuts against the outer wall of the ball head housing, and the other end of the return spring abuts against the pressing head. A limiting cylinder is provided outside the return spring, and the bottom of the limiting cylinder is fixedly connected to the outer wall of the ball head housing.

10. The shift lever assembly for a motor vehicle according to claim 1, characterized in that, Mounting holes are provided on the bottom plate.

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