Front shock absorber spring pre-load adjuster

Abstract

The utility model discloses a front shock absorber spring preloading regulator belongs to motorcycle front shock absorber component technical field, and one end fixed mounting of regulator handle has the adjusting seat, and the inner wall rotationally connected of adjusting seat has the adjusting axle seat, and the inner wall screw thread connection of adjusting axle seat has the adjusting axle core, and one end of adjusting axle seat is detachably connected with adjusting knob through first screw, and the other end fixed mounting of regulator handle has the oil pipe, and the other end fixed mounting of oil pipe has the spring seat, and this front shock absorber spring preloading regulator, through setting up oil pipe and spring seat, make first telescopic part and second telescopic part can through hydraulic telescopic, and then the tension of shock absorber spring is adjusted fast, greatly improve the convenience of adjustment, and through setting up adjusting seat, adjusting axle seat and adjusting axle core can control the switch position of pressure relief valve, and then control the contraction position of first telescopic part and second telescopic part, and simple and quick operation.

Description

Technical Field

[0001] This utility model relates to the technical field of motorcycle front shock absorber components, and more specifically, to a front shock absorber spring preload adjuster. Background Technology

[0002] The front shock absorber spring preload adjuster is an important component in the suspension system of motorcycles, automobiles, and other vehicles. By adjusting the initial compression of the spring (preload), it enables precise control over the vehicle's driving stability, handling, and comfort.

[0003] Currently, commonly used front shock absorber spring preload adjusters require the use of a wrench for adjustment, which is inconvenient. Moreover, vibration can cause them to rotate automatically, resulting in insufficient stability of the adjusted position. For example, the front shock absorber spring preload adjuster disclosed in publication number CN218564285U includes an adjusting shaft core. The adjusting shaft core is characterized by having a stepped transition front section and a rear section. The front section is a prism, and the rear section is a cylinder. A screw hole is provided on the rear end face of the cylinder. The rear section of the adjusting shaft core can rotate circumferentially and is axially limited within the inner hole of the connecting nut.

[0004] As can be seen from the above-disclosed scheme, when adjusting the spring tension of the front shock absorber spring preload adjuster, it is necessary to rotate the adjusting nut with a wrench to control the axial movement of the adjusting shaft core. The adjustment is inconvenient. Moreover, the large vibration during the motorcycle's operation will cause it to rotate automatically, which will cause the adjusting shaft core to move automatically in the axial direction, reducing its adjustment stability. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a front shock absorber spring preload adjuster. This front shock absorber spring preload adjuster, through the provided oil pipe and spring seat, allows the first and second telescopic parts to be hydraulically extended and retracted, thereby quickly adjusting the tension of the shock absorber spring, greatly improving the convenience of adjustment. Furthermore, through the provided adjusting seat, adjusting shaft seat, and adjusting shaft core, the opening and closing position of the pressure relief valve can be controlled, thereby controlling the retraction position of the first and second telescopic parts, making the operation simple and quick.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A front shock absorber spring preload adjuster includes an adjuster handle. An adjusting seat is fixedly mounted at one end of the handle. An adjusting shaft seat is rotatably connected to the inner wall of the adjusting seat. An adjusting shaft core is threadedly connected to the inner wall of the adjusting shaft seat. An adjusting knob is detachably connected to one end of the adjusting shaft seat via a first screw. An oil pipe is fixedly mounted at the other end of the adjuster handle. A spring seat is fixedly mounted at the other end of the oil pipe. An oil seal shaft core is fixedly mounted on the surface of the spring seat. This front shock absorber spring preload adjuster, through the oil pipe and spring seat, allows the first and second telescopic parts to extend and retract hydraulically, thereby quickly adjusting the tension of the shock absorber spring, greatly improving adjustment convenience. Furthermore, the adjusting seat, adjusting shaft seat, and adjusting shaft core can control the opening and closing position of the pressure relief valve, thereby controlling the retraction position of the first and second telescopic parts. Operation is simple and quick.

[0008] Furthermore, the surface of the spring seat is provided with a first telescopic part, the inner wall of the first telescopic part is provided with a second telescopic part, one end of the second telescopic part is provided with a limit groove, the surface of the spring seat is provided with an oil passage, the oil passage is connected to the interior of the first telescopic part and the second telescopic part, the first telescopic part and the second telescopic part can extend and retract under the action of hydraulic oil, thereby adjusting the position of the limit groove, and thus adjusting the tension of the front shock absorber spring.

[0009] Furthermore, one end of the oil circuit is movably connected to one end of the oil pipe, one end of the oil pipe is snapped with a retaining ring, and the other end of the oil pipe is movably connected with a copper washer. The retaining ring facilitates quick assembly and disassembly of one end of the oil pipe from the spring seat.

[0010] Furthermore, the surface of the regulator handle is detachably connected to a connecting bracket via a third screw, and the surface of the connecting bracket is detachably connected to a mounting bracket via a second screw, which facilitates fastening the mounting bracket to the enclosed position via the second screw, thereby fixing the position of the regulator handle.

[0011] Furthermore, a positioning sleeve is fixedly fitted onto the inner wall of the adjusting knob. One end of the positioning sleeve has a central hole, and the inner wall of the central hole is provided with an arc-shaped spring piece. The arc-shaped spring pieces are distributed in a ring at equal intervals and have the function of compressing elastic force.

[0012] Furthermore, a thrust washer is provided between the adjusting seat and the adjusting shaft seat, and a screw hole is opened at one end of the adjusting shaft seat. The thrust washer can reduce the friction and wear between the adjusting seat and the adjusting shaft seat, and can withstand axial load.

[0013] Furthermore, the surface of the adjuster handle has a slot, and the inner wall of the slot is movably connected to the surface of the spring piece. The spring piece is engaged in the slot to prevent the adjustment knob from rotating arbitrarily.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution uses oil pipes and spring seats to enable the first and second telescopic parts to extend and retract hydraulically, thereby quickly adjusting the tension of the shock absorber spring and greatly improving the convenience of adjustment.

[0016] (2) This solution can control the opening and closing position of the pressure relief valve by setting the adjustment seat, adjustment shaft seat and adjustment shaft core, thereby controlling the contraction position of the first telescopic part and the second telescopic part. The operation is simple and quick. Attached Figure Description

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

[0018] Figure 2 for Figure 1 Enlarged view of part A;

[0019] Figure 3 for Figure 1 Enlarged view of part B;

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

[0021] Figure 5 for Figure 2 A schematic diagram of the positioning sleeve structure.

[0022] Explanation of the labels in the diagram:

[0023] 1. Adjuster handle; 11. Adjustment seat; 12. Adjustment shaft seat; 13. Adjustment shaft core; 14. First screw; 15. Adjustment knob; 16. Connecting bracket; 17. Second screw; 18. Mounting bracket; 19. Third screw; 20. Oil pipe; 21. Copper washer; 22. Snap ring; 23. Spring seat; 24. First telescopic part; 25. Second telescopic part; 26. Limiting groove; 27. Oil seal shaft core; 28. Thrust washer; 29. ​​Positioning sleeve; 30. Center hole; 31. Spring. Detailed Implementation

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

[0025] Example 1: Please refer to Figure 1-5A front shock absorber spring preload adjuster includes an adjuster handle 1. An adjusting seat 11 is fixedly mounted on one end of the adjuster handle 1. An O-ring is provided at the connection between the adjusting seat 11 and the adjuster handle 1. An adjusting shaft seat 12 is rotatably connected to the inner wall of the adjusting seat 11. An adjusting shaft core 13 is threadedly connected to the inner wall of the adjusting shaft seat 12. An adjusting hole is provided at one end of the adjuster handle 1. An O-ring is provided at the connection between the adjusting hole and one end of the adjusting shaft core 13. A pressure relief valve switch is driven to one end of the adjusting shaft core 13. A pressure relief valve body is provided at one end of the pressure relief valve switch. The pressure relief valve is connected to an oil pipe 20, which can release pressure, thereby controlling the retraction of the first telescopic part 24 and the second telescopic part 25. An adjusting knob 15 is detachably connected to one end of the adjusting shaft seat 12 via a first screw 14. The adjusting knob 15 will not rotate arbitrarily due to vibration, thus allowing the adjusting shaft core 13 to move axially freely. An oil pipe 20 is fixedly mounted on the other end of the adjuster handle 1, and the oil pipe 20 is connected to a hydraulic cylinder. The hydraulic cylinder is equipped with a hydraulic system component, which can control the extension of the first telescopic part 24 and the second telescopic part 25 to compress the spring through hydraulic oil. The other end of the oil pipe 20 is fixedly installed with a spring seat 23. An oil seal shaft core 27 is fixedly installed on the surface of the spring seat 23. An O-ring is provided at the connection between the oil seal shaft core 27 and the spring seat 23. An O-ring is provided inside the spring seat 23 to seal the connection of the first telescopic part 24. An O-ring is provided inside the first telescopic part 24 to seal the connection of the second telescopic part 25. The surface of the spring seat 23 is provided with the first telescopic part 24. The inner wall of the first telescopic part 24 is provided with the second telescopic part 25. One end of the second telescopic part 25 is provided with a limit groove 26. The surface of the spring seat 23 is provided with an oil passage, which is connected to the interior of the first telescopic part 24 and the second telescopic part 25. The first telescopic part 24 and the second telescopic part 25 can extend and retract under the action of hydraulic oil, thereby adjusting the position of the limit groove 26 and thus adjusting the tension of the front shock absorber spring.

[0026] One end of the oil circuit is movably connected to one end of the oil pipe 20. One end of the oil pipe 20 is secured with a retaining spring 22, and the other end of the oil pipe 20 is movably connected with a copper washer 21. The retaining spring 22 facilitates quick assembly and disassembly of one end of the oil pipe 20 and the spring seat 23. The surface of the regulator handle 1 is detachably connected to a connecting bracket 16 via a third screw 19. The surface of the connecting bracket 16 is detachably connected to a mounting bracket 18 via a second screw 17, which facilitates tightening the mounting bracket 18 to secure its position and thus fixes the position of the regulator handle 1. A positioning sleeve 29 is fixedly fitted onto the inner wall of the adjusting knob 15. One end of the positioning sleeve 29 has a central hole 30, and the inner wall of the central hole 30 is provided with an arc-shaped spring piece 31. The arc-shaped spring pieces 31 are distributed in a ring at equal intervals and have the function of compressing elasticity.

[0027] A thrust washer 28 is provided between the adjusting seat 11 and the adjusting shaft seat 12. One end of the adjusting shaft seat 12 has a screw hole. The thrust washer 28 can reduce the friction and wear between the adjusting seat 11 and the adjusting shaft seat 12, and can also withstand axial load. The surface of the adjusting handle 1 has a slot. The inner wall of the slot is movably connected to the surface of the spring piece 31. The spring piece 31 is inserted into the slot to prevent the adjusting knob 15 from rotating arbitrarily.

[0028] When using the front shock absorber spring preload adjuster, the position of the adjuster handle 1 is fixed by the second screw 17 and the mounting bracket 18. Then, one end of the front shock absorber spring is inserted into the limiting groove 26. Next, the first telescopic part 24 is extended by the hydraulic cylinder, followed by the extension of the second telescopic part 25, which in turn compresses the front shock absorber spring and adjusts the spring tension. During the adjustment process, if the extension length of the first telescopic part 24 and the second telescopic part 25 is too long, the adjusting knob 15 can be manually rotated counterclockwise to move the adjusting shaft 13 to the left, thereby opening the pressure relief valve and causing the first telescopic part 24 and the second telescopic part 25 to automatically retract. After the retracted length is appropriate, the adjusting knob 15 is manually tightened clockwise to close the pressure relief valve, thereby keeping the first telescopic part 24 and the second telescopic part 25 in the telescopic position, thus completing the adjustment of the spring tension.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A front shock absorber spring preload adjuster, comprising an adjuster handle (1), characterized in that: One end of the regulator handle (1) is fixedly installed with an adjustment seat (11), the inner wall of the adjustment seat (11) is rotatably connected with an adjustment shaft seat (12), the inner wall of the adjustment shaft seat (12) is threadedly connected with an adjustment shaft core (13), one end of the adjustment shaft seat (12) is detachably connected with an adjustment knob (15) by a first screw (14), the other end of the regulator handle (1) is fixedly installed with an oil pipe (20), the other end of the oil pipe (20) is fixedly installed with a spring seat (23), and the surface of the spring seat (23) is fixedly installed with an oil seal shaft core (27).

2. The front shock absorber spring preload adjuster according to claim 1, characterized in that: The surface of the spring seat (23) is provided with a first telescopic part (24), the inner wall of the first telescopic part (24) is provided with a second telescopic part (25), one end of the second telescopic part (25) is provided with a limit groove (26), the surface of the spring seat (23) is provided with an oil passage, and the oil passage is connected to the interior of the first telescopic part (24) and the second telescopic part (25).

3. A front shock absorber spring preload adjuster according to claim 2, characterized in that: One end of the oil circuit is movably connected to one end of the oil pipe (20), one end of the oil pipe (20) is snapped with a snap ring (22), and the other end of the oil pipe (20) is movably connected with a copper gasket (21).

4. A front shock absorber spring preload adjuster according to claim 1, characterized in that: The surface of the regulator handle (1) is detachably connected to a connecting bracket (16) by a third screw (19), and the surface of the connecting bracket (16) is detachably connected to a mounting bracket (18) by a second screw (17).

5. A front shock absorber spring preload adjuster according to claim 1, characterized in that: The inner wall of the adjustment knob (15) is fixedly fitted with a positioning sleeve (29), one end of the positioning sleeve (29) is provided with a central hole (30), and the inner wall of the central hole (30) is provided with an arc-shaped spring piece (31).

6. A front shock absorber spring preload adjuster according to claim 1, characterized in that: A thrust washer (28) is provided between the adjusting seat (11) and the adjusting shaft seat (12), and a screw hole is provided at one end of the adjusting shaft seat (12).

7. A front shock absorber spring preload adjuster according to claim 5, characterized in that: The surface of the regulator handle (1) has a slot, and the inner wall of the slot is movably connected to the surface of the spring piece (31).

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