An adjustable dual-spring shock absorber for motorcycles

Abstract

This utility model discloses an adjustable dual-spring shock absorber for motorcycles. The key technical features are: a shock absorber body containing a first spring and a second spring; two support seats on the outer circular wall of the shock absorber body; and a pressing assembly on the outer circular wall of the shock absorber body, including a cap. The cap is fixedly connected to the top of the cap, and a common lead screw is fixedly connected to the bottom of the cap. Through the interaction of the handle, the first spring, the cap, the lead screw, the rotating block, and the slider, the preload and stiffness of the first spring can be changed by adjusting the spring's helical tightness. Tightening the first spring increases its stiffness, while loosening it decreases it, thus facilitating the adjustment of the motorcycle shock absorber spring's tension and improving the performance of the motorcycle shock absorber under different conditions.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle shock absorption technology, specifically to an adjustable double-spring shock absorption device for motorcycles. Background Technology

[0002] The working process of a motorcycle shock absorber is divided into two stages. In the compression stage, the shock absorber cylinder moves downward and the piston moves upward relative to compress the spring. The hydraulic fluid flows rapidly through the piston valve and the small hole at the bottom, reducing the impact force. In the rebound stage, the piston moves downward, causing the valve to close. The hydraulic fluid can only flow through a smaller damping orifice, increasing the flow resistance and effectively suppressing the spring rebound speed. The damping effect converts most of the mechanical energy generated by the friction of the hydraulic fluid flow into heat energy. Through graded damping control, it ensures that the tire always maintains contact with the ground.

[0003] When a motorcycle is riding on the road, it will produce bumps and vibrations. Therefore, the motorcycle shock absorber is constantly working during the motorcycle's ride. Over time, the spring tension of the motorcycle shock absorber may change, thus affecting the shock absorber's damping performance. At this time, the shock absorber spring needs to be adjusted. In the current technology, the preload of the dual springs is generally adjusted by directly rotating the sleeve or knob. However, it is difficult to control the displacement by directly rotating the sleeve or knob. It is necessary to rotate it back and forth many times to adjust the displacement of the dual springs, which takes a lot of time and affects the work efficiency of the operator. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an adjustable double spring shock absorber for motorcycles.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An adjustable dual-spring shock absorber for motorcycles includes a shock absorber body, inside which a first spring and a second spring are disposed. Two support seats are disposed on the outer circular wall of the shock absorber body. A pressing assembly is disposed on the outer circular wall of the shock absorber body, the pressing assembly including: a cap, the cap being disposed on the outer circular wall of the shock absorber body, a handle fixedly connected to the top of the cap, a common lead screw fixedly connected to the bottom of the cap, a slider threadedly connected to the outer circular wall of the common lead screw, two connecting rods fixedly connected between the two support seats, sliders movably sleeved on the outer circular walls of the two connecting rods, and graduations on the outer circular walls of the connecting rods; a handle fixedly connected to the top of the cap; the two support seats movably sleeved with the common lead screw; two adjusting discs are disposed on the side of the slider near the first spring; and a rotating assembly is disposed on one side of the slider.

[0007] In order to ensure that the pressing plate does not affect the pressing effect of the adjusting plate on the first spring, as a preferred embodiment of the present invention for an adjustable double spring shock absorber for motorcycles, the rotating assembly includes: two pressing plates, both of which are disposed on one side of the slider. The slider has a first rectangular groove on the side near the first spring, and two positioning rods are fixedly connected inside the first rectangular groove. The positioning rods are movably sleeved with the pressing plate.

[0008] In order to prevent the adjusting plate from affecting the pressing plate during the pressing of the second spring, as a preferred embodiment of the present invention for an adjustable double-spring shock absorber for motorcycles, the slider has a groove on the side near the adjusting plate, two support holes are formed on the inner bottom surface of the groove, a limit hole is formed on the bottom of the adjusting plate, a support spring is fixedly connected to the inner top surface of the limit hole, and a locking block is fixedly connected to the end of the support spring away from the adjusting plate, the locking block being movably engaged with the support hole.

[0009] To fix the pressing assembly so that it can press the first or second spring, as a preferred embodiment of the adjustable dual-spring shock absorber for motorcycles according to this utility model, the top of each of the two support seats is provided with a rotating block, the bottom of the rotating block is fixedly connected to a bidirectional threaded rod with positive and negative threads, the outer circular wall surface of the bidirectional threaded rod is threaded with two support plates, the support seat is movably connected to the bidirectional threaded rod, and the top and bottom of each of the two support seats are fixedly connected to a limit rod, the limit rod being movably sleeved with the support plate.

[0010] In order to limit the bottom support plate and prevent it from falling off, as a preferred embodiment of the present invention for an adjustable double spring shock absorber for motorcycles, a limiting block is fixedly connected to the end of the bidirectional screw with positive and negative threads away from the rotating block.

[0011] In order to ensure that the adjusting plate and the pressing plate can press the first spring and the second spring normally and avoid being stuck, as a preferred embodiment of the adjustable double spring shock absorber for motorcycles according to this utility model, the top of the adjusting plate is provided with a first positioning hole, which is movably sleeved with the telescopic rod of the shock absorber body; the top of the pressing plate is provided with a second positioning hole, which is movably sleeved with the telescopic rod of the shock absorber body.

[0012] In summary, the present invention has the following main advantages:

[0013] 1. By adjusting the screw tightness of the spring, the preload and stiffness of the first spring can be changed through the interaction between the handle, the first spring, the cap, the ordinary lead screw, the rotating block, and the slider. Tightening the first spring will increase its stiffness, while loosening the spring will decrease its stiffness, thus facilitating the adjustment of the tension of the motorcycle shock absorber spring.

[0014] 2. By cooperating with the rotating block, the double-sided screw rod, and the two support plates, the rotating block stops rotating when the two support plates are in close contact with the shock absorber body. Through the above operation, the adjustment device can be fixed, making it convenient for the staff to use the two adjustment discs and two pressing plates to adjust the length of the first spring and the second spring.

[0015] 3. By setting up two pressure plates, a handle, a cap, a lead screw, an adjusting plate, a slider, and a second spring, the slider can move on the lead screw, thereby moving the position of the two pressure plates. This allows the two pressure plates to adjust the length of the second spring, improving the motorcycle's load-bearing capacity. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the slider structure of this utility model;

[0018] Figure 3 This is a utility model Figure 2 Enlarged structural diagram of A in the middle;

[0019] Figure 4 This is a schematic diagram of the pressing plate structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the slide groove structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the adjusting disc structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the support plate structure of this utility model.

[0023] Reference numerals in the attached drawings: 1. Shock absorber body; 2. Support base; 3. Cap; 4. Ordinary lead screw; 5. Handle; 6. Connecting rod; 7. Slider; 8. Adjusting disc; 9. Slide groove; 10. First spring; 11. Second spring; 12. Rectangular groove; 13. Positioning rod; 14. Pressing plate; 15. Support hole; 16. Locking block; 17. Support spring; 18. Limiting hole; 19. Support plate; 20. Rotating block; 21. Double-sided lead screw with positive and negative threads; 22. Limiting block; 23. Limiting rod; 24. First positioning hole; 25. Second positioning hole. 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: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An adjustable dual-spring shock absorber for motorcycles includes a shock absorber body 1, with a first spring 10 and a second spring 11 inside the shock absorber body 1. Two support seats 2 are provided on the outer circular wall of the shock absorber body 1. A pressing assembly, including a cap 3, is provided on the outer circular wall of the shock absorber body 1. A handle 5 is fixedly connected to the top of the cap 3, and a common lead screw 4 is fixedly connected to the bottom of the cap 3. A slider 7 is threaded onto the outer circular wall of the common lead screw 4. Two connecting rods are fixedly connected between the two support seats 2. The outer circular wall of the two connecting rods 6 is movably sleeved with sliders 7. The outer circular wall of the connecting rods 6 is marked with a scale. The top of the cap 3 is fixedly connected with a handle 5. The two support seats 2 are movably sleeved with ordinary lead screws 4. Two adjusting discs 8 are provided on the side of the slider 7 near the first spring 10. A rotating component is provided on one side of the slider 7. The top of the adjusting disc 8 is provided with a first positioning hole 24. The first positioning hole 24 is movably sleeved with the telescopic rod of the shock absorber body 1. The top of the pressing plate 14 is provided with a second positioning hole 25. The second positioning hole 25 is movably sleeved with the telescopic rod of the shock absorber body 1.

[0026] When the length of the first spring 10 needs to be compressed using the handle 5, first record the scale of the connecting rod 6 at this time. Then, push the two adjusting discs 8. The locking block 16 receives a force that moves closer to the adjusting discs 8, which in turn supports the spring 17 to move closer to the adjusting discs 8. Subsequently, the two adjusting discs 8 move relative to each other, gradually moving closer until the locking block 16 stops moving when it reaches the inside of the limiting hole 18. At this time, the two adjusting discs 8 are fixed. Then, rotate the handle 5 counterclockwise. The counterclockwise rotation of the handle 5 drives the cap 3 and the ordinary lead screw 4 to rotate counterclockwise. Then, the slider 7 moves closer to the cap 3, causing the adjusting discs 8 and the first spring 10 to move closer to the cap 3, thereby compressing the first spring 10. The displacement of the first spring 10 compressed is read through the connecting rod 6. Then, stop rotating the handle 5. The displacement of the first spring 10 compressed is read through the position of the slider 7 on the connecting rod 6 at this time. When the length of the first spring 10 needs to be compressed... When the length is increased, first record the scale of the connecting rod 6 at this time, then rotate the handle 5 clockwise. The clockwise rotation of the handle 5 drives the cap 3 and the ordinary lead screw 4 to rotate counterclockwise, thereby moving the slider 7 away from the cap 3. Then the adjusting plate 8 and the first spring 10 move away from the cap 3. Then stop rotating the handle 5 and read the displacement of the first spring 10 through the connecting rod 6, thereby controlling the degree of compression of the first spring 10. By moving the position of the slider 7 on the ordinary lead screw 4, the position of the adjusting plate 8 is moved so that the adjusting plate 8 can adjust the length of the first spring 10. By adjusting the tightness of the spring screw, the preload and stiffness of the spring can be changed. Tightening the spring will increase its stiffness, while loosening the spring will decrease its stiffness, thereby facilitating the adjustment of the tightness of the motorcycle shock absorber spring and improving the performance of the motorcycle shock absorber under different environments.

[0027] When the second spring 11 needs to be compressed using the set pressing plate 14, first record the scale on the connecting rod 6 at this time. Then, rotate the two pressing plates 14, with the left pressing plate 14 rotating clockwise and the right pressing plate 14 rotating counterclockwise. Stop rotating when the two pressing plates 14 are in close contact. Then, rotate the handle 5 clockwise. The clockwise rotation of the handle 5 causes the cap 3 and the ordinary lead screw 4 to rotate clockwise. Then, the slider 7 moves away from the cap 3, causing the two pressing plates 14 to move away from the cap 3. The second spring 11 is subjected to a downward force, and thus the second spring 11 is compressed. The amount of displacement of the second spring 11 compressed is read by the scale on the connecting rod 6. Then, stop rotating the handle 5 and read the length of the second spring 11 by the position of the slider 7 on the connecting rod 6 at this time. The displacement of the second spring 11 is determined by rotating the handle 5 counterclockwise when the length of the second spring 11 needs to be increased. The counterclockwise rotation of the handle 5 causes the cap 3 and the ordinary lead screw 4 to rotate counterclockwise. Then, the slider 7 moves closer to the cap 3, causing the two pressing plates 14 to move closer to the cap 3. The elastic potential energy generated by the deformation of the second spring 11 itself causes the second spring 11 to move closer to the two pressing plates 14, thereby lengthening the second spring 11. The amount of displacement of the second spring 11 is read by the scale on the connecting rod 6. Then, the handle 5 is stopped, and the displacement of the second spring 11 is read by the position of the slider 7 on the connecting rod 6 at this time. Through the above operation, the length of the second spring 11 can be adjusted by the two pressing plates 14, thereby improving the load-bearing capacity of the motorcycle.

[0028] refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 The rotating assembly includes two pressing plates 14, both of which are disposed on one side of the slider 7. The slider 7 has a first rectangular groove 12 on the side near the first spring 10. Two positioning rods 13 are fixedly connected inside the first rectangular groove 12. The positioning rods 13 are movably sleeved with the pressing plates 14. The slider 7 has a sliding groove 9 on the side near the adjusting plate 8. Two support holes 15 are opened on the bottom surface of the sliding groove 9. The bottom of the adjusting plate 8 has a limit hole 18. A support spring 17 is fixedly connected to the top surface of the limit hole 18. A locking block 16 is fixedly connected to the end of the support spring 17 away from the adjusting plate 8. The locking block 16 is movably locked with the support hole 15.

[0029] Before the two adjusting discs 8 adjust the distance of the first spring 10, the pressing plate 14 needs to be rotated out by setting the two positioning rods 13. First, rotate the two pressing plates 14. The pressing plate 14 on the left rotates counterclockwise around the positioning rod 13 on the left, and the pressing plate 14 on the right rotates clockwise around the positioning rod 13 on the right. After the two pressing plates 14 are parallel to the slider 7, stop rotating. This completes the retraction action of the pressing plate 14 and avoids the pressing plate 14 being stuck by the shock absorber telescopic rod, so that the adjusting disc 8 cannot adjust the length of the first spring 10.

[0030] Before adjusting the distance of the second spring 11 using the two adjustment discs 8 and the two pressing plates 14, the two adjustment discs 8 need to be moved away. First, pull the two adjustment discs 8, and the locking block 16 will be subjected to a force that moves closer to the adjustment discs 8, thereby supporting the spring 17 to move closer to the adjustment discs 8. Then, the two adjustment discs 8 move in opposite directions and gradually move away from each other, so that the operator can use the two pressing plates 14 to adjust the distance of the second spring 11.

[0031] refer to Figure 1 and Figure 7 Two support seats 2 are respectively provided with rotating blocks 20 on the top. The bottom of the rotating blocks 20 is fixedly connected to a double-sided threaded rod 21 with positive and negative threads. Two support plates 19 are threadedly connected to the outer circular wall of the double-sided threaded rod 21. The support seats 2 are movably connected to the double-sided threaded rod 21. Limiting rods 23 are fixedly connected to the top and bottom of the two support seats 2. The limiting rods 23 are movably sleeved with the support plates 19. The end of the double-sided threaded rod 21 away from the rotating blocks 20 is fixedly connected to a limiting block 22.

[0032] Before adjusting the lengths of the first spring 10 and the second spring 11, the adjusting device needs to be fixed by rotating the rotating block 20. Rotating the rotating block 20 clockwise will cause the double-sided screw 21 to rotate clockwise, thereby moving the two support plates 19 relative to each other and gradually bringing them closer. The two support plates 19 will stop moving when they are in close contact with the shock absorber body 1. Through the above operation, the adjusting device can be fixed, making it convenient for the staff to use the two adjusting discs 8 and the two pressing plates 14 to adjust the lengths of the first spring 10 and the second spring 11.

[0033] Working principle: Please refer to Figures 1-7As shown, when the length of the first spring 10 needs to be compressed using the handle 5, the scale of the connecting rod 6 is first recorded. Then, the two adjusting discs 8 are pushed, and the locking block 16 is subjected to a force that moves closer to the adjusting discs 8, thereby supporting the spring 17 to move closer to the adjusting discs 8. Subsequently, the two adjusting discs 8 move relative to each other, gradually approaching each other, until the locking block 16 stops moving when it reaches the inside of the limiting hole 18. At this time, the two adjusting discs 8 are fixed. Then, the handle 5 is rotated counterclockwise. The counterclockwise rotation of the handle 5 drives the cap 3 and the ordinary lead screw 4 to rotate counterclockwise. Then, the slider 7 moves closer to the cap 3, causing the adjusting discs 8 and the first spring 10 to move closer to the cap 3, thereby compressing the first spring 10. The displacement of the first spring 10 under compression is read through the connecting rod 6. Then, the handle 5 is stopped from being rotated, and the displacement of the first spring 10 under compression is read through the position of the slider 7 on the connecting rod 6. To lengthen the first spring 10, first record the scale of the connecting rod 6 at this time. Then, rotate the handle 5 clockwise. The clockwise rotation of the handle 5 causes the cap 3 and the ordinary lead screw 4 to rotate counterclockwise, thereby moving the slider 7 away from the cap 3. Then, the adjusting plate 8 and the first spring 10 move away from the cap 3. Then stop rotating the handle 5 and read the amount of displacement of the first spring 10 through the connecting rod 6, thereby controlling the degree of compression of the first spring 10. By moving the position of the slider 7 on the ordinary lead screw 4, the position of the adjusting plate 8 is moved so that the adjusting plate 8 can adjust the length of the first spring 10. By adjusting the tightness of the spring's helix, the preload and stiffness of the spring can be changed. Tightening the spring will increase its stiffness, while loosening the spring will decrease its stiffness, thus facilitating the adjustment of the motorcycle shock absorber spring and improving the performance of the motorcycle shock absorber in different environments.

[0034] When the second spring 11 needs to be compressed using the set pressing plate 14, first record the scale on the connecting rod 6 at this time. Then, rotate the two pressing plates 14, with the left pressing plate 14 rotating clockwise and the right pressing plate 14 rotating counterclockwise. Stop rotating when the two pressing plates 14 are in close contact. Then, rotate the handle 5 clockwise. The clockwise rotation of the handle 5 causes the cap 3 and the ordinary lead screw 4 to rotate clockwise. Then, the slider 7 moves away from the cap 3, causing the two pressing plates 14 to move away from the cap 3. The second spring 11 is subjected to a downward force, and thus the second spring 11 is compressed. The amount of displacement of the second spring 11 compressed is read by the scale on the connecting rod 6. Then, stop rotating the handle 5 and read the length of the second spring 11 by the position of the slider 7 on the connecting rod 6 at this time. The displacement of the second spring 11 is determined by rotating the handle 5 counterclockwise when the length of the second spring 11 needs to be increased. The counterclockwise rotation of the handle 5 causes the cap 3 and the ordinary lead screw 4 to rotate counterclockwise. Then, the slider 7 moves closer to the cap 3, causing the two pressing plates 14 to move closer to the cap 3. The elastic potential energy generated by the deformation of the second spring 11 itself causes the second spring 11 to move closer to the two pressing plates 14, thereby lengthening the second spring 11. The amount of displacement of the second spring 11 is read by the scale on the connecting rod 6. Then, the handle 5 is stopped, and the displacement of the second spring 11 is read by the position of the slider 7 on the connecting rod 6 at this time. Through the above operation, the length of the second spring 11 can be adjusted by the two pressing plates 14, thereby improving the load-bearing capacity of the motorcycle.

[0035] Before the two adjusting discs 8 adjust the distance of the first spring 10, the pressing plate 14 needs to be rotated out by setting the two positioning rods 13. First, rotate the two pressing plates 14. The pressing plate 14 on the left rotates counterclockwise around the positioning rod 13 on the left, and the pressing plate 14 on the right rotates clockwise around the positioning rod 13 on the right. After the two pressing plates 14 are parallel to the slider 7, stop rotating. This completes the retraction action of the pressing plate 14 and avoids the pressing plate 14 being stuck by the shock absorber telescopic rod, so that the adjusting disc 8 cannot adjust the length of the first spring 10.

[0036] Before adjusting the distance of the second spring 11 using the two adjustment discs 8 and the two pressing plates 14, the two adjustment discs 8 need to be moved away. First, pull the two adjustment discs 8, and the locking block 16 will be subjected to a force that moves closer to the adjustment discs 8, thereby supporting the spring 17 to move closer to the adjustment discs 8. Then, the two adjustment discs 8 move in opposite directions and gradually move away from each other, so that the operator can use the two pressing plates 14 to adjust the distance of the second spring 11.

[0037] Before adjusting the lengths of the first spring 10 and the second spring 11, the adjusting device needs to be fixed by rotating the rotating block 20. Rotating the rotating block 20 clockwise will cause the double-sided screw 21 to rotate clockwise, thereby moving the two support plates 19 relative to each other and gradually bringing them closer. The two support plates 19 will stop moving when they are in close contact with the shock absorber body 1. Through the above operation, the adjusting device can be fixed, making it convenient for the staff to use the two adjusting discs 8 and the two pressing plates 14 to adjust the lengths of the first spring 10 and the second spring 11.

[0038] 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. An adjustable double spring shock absorber for a motorcycle, characterized in that, include: The shock absorber body (1) is provided with a first spring (10) and a second spring (11) inside the shock absorber body (1), and two support seats (2) are provided on the outer circular wall surface of the shock absorber body (1). The outer circular wall of the shock absorber body (1) is provided with a pressing component, which includes: a cap (3), the cap (3) is provided on the outer circular wall of the shock absorber body (1), the top of the cap (3) is fixedly connected to a handle (5), the bottom of the cap (3) is fixedly connected to a common screw rod (4), the outer circular wall of the common screw rod (4) is threadedly connected to a slider (7), two connecting rods (6) are fixedly connected between the two support seats (2), the two connecting rods (6) are movably sleeved with the slider (7), the outer circular wall of the connecting rod (6) is provided with a scale, the two support seats (2) are movably sleeved with the common screw rod (4), and two adjusting discs (8) are provided on the side of the slider (7) near the first spring (10). A rotating component is provided on one side of the slider (7).

2. A dual spring suspension device for a motorcycle as defined in claim 1, wherein The rotating assembly includes: Two pressing plates (14) are provided on one side of the slider (7). The slider (7) has a first rectangular groove (12) on the side near the first spring (10). Two positioning rods (13) are fixedly connected inside the first rectangular groove (12). The positioning rods (13) are movably sleeved with the pressing plates (14).

3. A dual spring suspension device for a motorcycle as defined in claim 1 wherein: The slider (7) has a groove (9) on the side near the adjustment plate (8). The bottom surface of the groove (9) has two support holes (15). The bottom of the adjustment plate (8) has a limit hole (18). The top surface of the limit hole (18) is fixedly connected to a support spring (17). The end of the support spring (17) away from the adjustment plate (8) is fixedly connected to a locking block (16). The locking block (16) is movably engaged with the support hole (15).

4. A dual spring suspension device for a motorcycle as defined in claim 1 wherein: The top of each of the two support seats (2) is provided with a rotating block (20), and the bottom of the rotating block (20) is fixedly connected with a two-way threaded rod (21). The outer circular wall of the two-way threaded rod (21) is threaded with two support plates (19). The support seat (2) is movably connected to the two-way threaded rod (21). The top and bottom of the two support seats (2) are fixedly connected with limit rods (23), and the limit rods (23) are movably sleeved with the support plates (19).

5. A variable rate twin spring suspension device for a motorcycle as claimed in claim 4 wherein, The end of the bidirectional lead screw (21) away from the rotating block (20) is fixedly connected to a limiting block (22).

6. An adjustable dual spring shock absorber for a motorcycle as defined in claim 2 wherein, The top of the adjustment plate (8) is provided with a first positioning hole (24), which is movably connected to the telescopic rod of the shock absorber body (1). The top of the pressing plate (14) is provided with a second positioning hole (25), which is movably connected to the telescopic rod of the shock absorber body (1).

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