An adjustable dual spring motorcycle shock absorber

Abstract

The utility model discloses an adjustable double spring motorcycle shock absorber relates to shock absorber technical field, including double spring shock absorber, and one side fixed mounting of double spring shock absorber lower extreme has internal spring adjusting device. The utility model discloses an adjustable double spring motorcycle shock absorber, through setting up the combination of external supporting spring external and internal damping spring built -in, makes the same journey of shock absorber, avoids the space conflict of traditional series structure, and the elasticity of external supporting spring and internal damping spring is different, makes the device can adapt more complex road condition and load demand, improves the damping effect of device, the impact force buffering of rigid collision is generated, improves the stability of vehicle, through adjusting two springs respectively, greatly promotes the adaptability of vehicle to changeable road surface, prevents spring excessive compression, ensures that shock absorber can effectively support weight, maintains the normal driving posture of vehicle, improves the damping effect of device.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber technology, and more specifically, to an adjustable dual-spring motorcycle shock absorber. Background Technology

[0002] Shock absorbers are an important component of motorcycles, filtering out vibrations from the road surface. Their performance directly affects vehicle stability and rider experience. However, traditional single-spring shock absorbers, due to their short travel and non-adjustable stiffness, are difficult to adapt to complex road conditions (such as bumps, sudden braking, or curves), easily causing vibrations to be transmitted to the rider, leading to fatigue and even safety hazards.

[0003] Although dual-spring shock absorbers have been developed that use a series structure to increase the damping stroke, they have significant drawbacks. For example, the two springs share a single adjustment device, requiring synchronized position adjustments, which is cumbersome and complex. Furthermore, both springs experience the same force when compressed, resulting in a single force state that cannot dynamically distribute pressure according to road conditions, leading to insufficient damping efficiency. Utility Model Content

[0004] The main objective of this invention is to provide an adjustable dual-spring motorcycle shock absorber, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An adjustable dual-spring motorcycle shock absorber includes a dual-spring shock absorber, wherein an inner spring adjustment device is fixedly installed on one side of the lower end of the dual-spring shock absorber.

[0007] The dual-spring shock absorber includes a connecting plate and a bottom fixing head. A top fixing head is fixedly installed on the top of the connecting plate, and an inner spring damping device is fixedly installed on the bottom of the connecting plate. A movable piston is fixedly installed on the bottom of the inner spring damping device, and a fixing tube is fixedly connected to the top of the bottom fixing head. The movable piston is movably sleeved inside the fixing tube, and the inner spring damping device is movably sleeved on the top of the fixing tube. An inner damping spring is movably sleeved on the outer surface of the inner spring damping device, and the inner damping spring is located between the connecting plate and the fixing tube.

[0008] Preferably, the fixed tube includes a support tube, the lower end of which has a hydraulic chamber, a lifting column is movably sleeved inside the support tube, a lifting piston is fixedly connected to the bottom of the lifting column, the lifting piston is movably sleeved inside the hydraulic chamber, the outer surface of the support tube has an external thread, the hydraulic chamber is connected to the bottom fixed head, the inner damping spring is located between the connecting plate and the lifting column, the top of the lifting column has a movable oil chamber, and the inner spring damping device and the movable piston are movably sleeved inside the movable oil chamber.

[0009] Preferably, an adjustment knob is threaded on the outer surface of the fixed tube, and an outer support spring is movably sleeved on the outer surface of the fixed tube and the inner spring damping device. The outer support spring is located between the connecting plate and the adjustment knob, and the movable piston is movably sleeved inside the movable oil chamber.

[0010] Preferably, the movable piston has multiple flow holes inside.

[0011] Preferably, the internal spring adjusting device includes a hydraulic tank, a threaded rod is threadedly installed on the top of the hydraulic tank, a rotating bolt head is fixedly installed on the top of the threaded rod, an adjusting piston is rotatably installed on the bottom of the threaded rod, the adjusting piston is slidably installed inside the hydraulic tank, a connecting pipe is fixedly connected to the bottom of the hydraulic tank, one end of the connecting pipe is connected to the bottom fixed head, a flow pipe is opened inside the connecting pipe, and the hydraulic tank is connected to the bottom fixed head through the flow pipe.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. By combining external support springs and internal damping springs, the stroke of the shock absorbers is the same, avoiding the spatial conflict of traditional series structures. Furthermore, the different elastic forces of the external support springs and internal damping springs allow the device to adapt to more complex road conditions and load requirements, thereby improving the device's damping effect.

[0014] 2. By setting flow holes, the outer support spring and the inner damping spring are compressed, so that the inner spring damping device is compressed into the interior of the rising column. The hydraulic oil buffers the vibration, avoiding the reaction force of the outer support spring and the inner damping spring, which would cause the shock absorber to vibrate greatly. This buffers the impact force generated by rigid collisions and improves the stability of the vehicle.

[0015] 3. The system adopts an external support spring and an internal damping spring layout. The fixed tube is connected to the threaded adjustment knob, and the internal spring adjustment device allows for independent adjustment of the two springs without affecting each other. By adjusting the two springs separately, the shock absorber can be in the optimal damping state under different road conditions, which greatly improves the vehicle's adaptability to changing road surfaces, prevents excessive spring compression, ensures that the shock absorber can effectively support the weight, maintain the vehicle's normal driving posture, and improve the device's damping effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the double-spring shock absorber of this utility model;

[0018] Figure 3 This is a schematic diagram of the fixed tube structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal spring adjusting device of this utility model;

[0020] Figure 5 This is a schematic diagram of the movable piston structure of this utility model.

[0021] The attached figures are labeled as follows: 1. Double spring shock absorber; 2. Inner spring adjusting device; 11. Connecting plate; 12. Top fixing head; 13. Bottom fixing head; 14. Fixing pipe; 15. Adjusting knob; 16. Outer support spring; 17. Inner spring damping device; 18. Inner damping spring; 19. Moving piston; 110. Flow hole; 21. Oil pressure tank; 22. Connecting pipe; 23. Threaded rod; 24. Rotating bolt head; 25. Adjusting piston; 26. Flow pipe; 141. Support pipe; 142. Oil pressure chamber; 143. Lifting column; 144. Lifting piston; 145. Movable oil chamber. Detailed Implementation

[0022] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0023] As attached Figure 1 To be continued Figure 5 As shown, an embodiment of the present invention provides an adjustable dual-spring motorcycle shock absorber, including a dual-spring shock absorber 1, and an inner spring adjustment device 2 is fixedly installed on one side of the lower end of the dual-spring shock absorber 1.

[0024] As attached Figure 2 As shown, the double-spring damper 1 includes a connecting plate 11 and a bottom fixing head 13. A top fixing head 12 is fixedly installed on the top of the connecting plate 11, and an inner spring damping device 17 is fixedly installed on the bottom of the connecting plate 11. A movable piston 19 is fixedly installed on the bottom of the inner spring damping device 17. A fixing tube 14 is fixedly connected to the top of the bottom fixing head 13. The movable piston 19 is movably sleeved inside the fixing tube 14. The inner spring damping device 17 is movably sleeved on the top of the fixing tube 14. An inner damping spring 18 is movably sleeved on the outer surface of the inner spring damping device 17. The inner damping spring 18 is located between the connecting plate 11 and the fixing tube 14.

[0025] The outer surface of the fixed tube 14 is threaded with an adjustment knob 15. The outer surface of the fixed tube 14 and the inner spring damping device 17 is movably sleeved with an outer support spring 16. The outer support spring 16 is located between the connecting plate 11 and the adjustment knob 15. The moving piston 19 is movably sleeved inside the movable oil chamber 145.

[0026] By combining the external support spring 16 and the internal damping spring 18, the stroke of the shock absorbers is the same, avoiding the spatial conflict of the traditional series structure. By rotating the adjustment knob 15, the adjustment knob 15 can be raised and lowered on the outer surface of the fixed tube 14, thereby adjusting the tension of the external support spring 16.

[0027] like Figure 3 As shown, the fixed tube 14 includes a support tube 141. The lower end of the support tube 141 has a hydraulic chamber 142. A lifting column 143 is movably sleeved inside the support tube 141. A lifting piston 144 is fixedly connected to the bottom of the lifting column 143. The lifting piston 144 is movably sleeved inside the hydraulic chamber 142. The outer surface of the support tube 141 has an external thread. The hydraulic chamber 142 is connected to the bottom fixed head 13. The inner damping spring 18 is located between the connecting plate 11 and the lifting column 143. A movable oil chamber 145 is opened at the top of the lifting column 143. The inner spring damping device 17 and the moving piston 19 are movably sleeved inside the movable oil chamber 145.

[0028] like Figure 4 As shown, the internal spring adjusting device 2 includes a hydraulic tank 21. A threaded rod 23 is threadedly installed on the top of the hydraulic tank 21. A rotating bolt head 24 is fixedly installed on the top of the threaded rod 23. An adjusting piston 25 is rotatably installed on the bottom of the threaded rod 23. The adjusting piston 25 is slidably installed inside the hydraulic tank 21. A connecting pipe 22 is fixedly connected to the bottom of the hydraulic tank 21. One end of the connecting pipe 22 is connected to the bottom fixed head 13. A flow pipe 26 is opened inside the connecting pipe 22. The hydraulic tank 21 is connected to the bottom fixed head 13 through the flow pipe 26.

[0029] Hydraulic oil is filled in the oil pressure tank 21, the oil pressure chamber 142, and the movable oil chamber 145. By rotating the rotating bolt head 24, the threaded rod 23 rotates at the top of the oil pressure tank 21, causing the adjusting piston 25 to descend inside the oil pressure tank 21. This allows the hydraulic oil inside the oil pressure tank 21 to enter the oil pressure chamber 142 through the flow pipe 26, increasing the hydraulic oil level inside the support pipe 141. At this time, the lifting piston 144 causes the lifting column 143 to rise inside the support pipe 141, thereby compressing the inner damping spring 18 and adjusting its tension. The design uses an external support spring 16 and an internal damping spring 18, connected by a threaded connection between the fixed pipe 14 and the adjusting knob 15. Combined with the adjustment of the inner spring adjusting device 2, the two springs can be adjusted independently without affecting each other, improving the adjustment effect of the damper and enhancing the vibration reduction effect of the device.

[0030] The movable piston 19 has multiple flow holes 110 inside. When vibration occurs, the outer support spring 16 and the inner damping spring 18 are compressed, causing the inner spring damping device 17 to be compressed into the interior of the lifting column 143. Hydraulic oil enters the upper end of the movable oil chamber 145 from the lower end through the flow holes 110, buffering the vibration and avoiding the reaction force of the outer support spring 16 and the inner damping spring 18, which would cause the shock absorber to vibrate greatly. This buffers the impact force generated by rigid collisions and improves the stability of the vehicle.

[0031] The working process of this utility model is as follows:

[0032] During vibration, the outer support spring 16 and the inner damping spring 18 are compressed, causing the inner spring damping device 17 to be compressed into the interior of the lifting column 143. Hydraulic oil enters the upper end of the movable oil chamber 145 from the lower end through the flow hole 110, thus buffering the impact force generated.

[0033] By rotating the rotating bolt head 24, the threaded rod 23 rotates at the top of the oil pressure tank 21, causing the adjusting piston 25 to rise and fall inside the oil pressure tank 21. This allows the hydraulic oil inside the oil pressure tank 21 and the oil pressure chamber 142 to flow through the flow pipe 26, causing the hydraulic oil inside the support pipe 141 to rise and fall. At this time, through the action of the lifting piston 144 and the reaction force of the inner damping spring 18, the lifting column 143 rises inside the support pipe 141, thereby adjusting the tension of the inner damping spring 18. In addition, by rotating the adjusting knob 15, the adjusting knob 15 rises and falls on the outer surface of the fixed pipe 14, thereby adjusting the tension of the outer support spring 16.

[0034] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable dual-spring motorcycle shock absorber, comprising a dual-spring shock absorber (1), characterized in that: An inner spring adjustment device (2) is fixedly installed on one side of the lower end of the double spring shock absorber (1). The dual-spring damper (1) includes a connecting plate (11) and a bottom fixing head (13). A top fixing head (12) is fixedly installed on the top of the connecting plate (11), and an inner spring damping device (17) is fixedly installed on the bottom of the connecting plate (11). A moving piston (19) is fixedly installed on the bottom of the inner spring damping device (17). A fixing tube (14) is fixedly connected to the top of the bottom fixing head (13). The moving piston (19) is movably sleeved inside the fixing tube (14). The inner spring damping device (17) is movably sleeved on the top of the fixing tube (14). An inner damping spring (18) is movably sleeved on the outer surface of the inner spring damping device (17). The inner damping spring (18) is located between the connecting plate (11) and the fixing tube (14).

2. An adjustable dual-spring motorcycle shock absorber according to claim 1, characterized in that: The fixed tube (14) includes a support tube (141), the lower end of which is provided with a hydraulic chamber (142). A lifting column (143) is movably sleeved inside the support tube (141). A lifting piston (144) is fixedly connected to the bottom of the lifting column (143). The lifting piston (144) is movably sleeved inside the hydraulic chamber (142). The outer surface of the support tube (141) is provided with an external thread. The hydraulic chamber (142) is connected to the bottom fixed head (13). The inner damping spring (18) is located between the connecting plate (11) and the lifting column (143). A movable oil chamber (145) is provided at the top of the lifting column (143). The inner spring damping device (17) and the moving piston (19) are movably sleeved inside the movable oil chamber (145).

3. An adjustable dual-spring motorcycle shock absorber according to claim 2, characterized in that: An adjustment knob (15) is threaded on the outer surface of the fixed tube (14). An outer support spring (16) is movably sleeved on the outer surface of the fixed tube (14) and the inner spring damping device (17). The outer support spring (16) is located between the connecting plate (11) and the adjustment knob (15). The moving piston (19) is movably sleeved inside the movable oil chamber (145).

4. An adjustable dual-spring motorcycle shock absorber according to claim 3, characterized in that: The movable piston (19) has multiple flow holes (110) inside.

5. An adjustable dual-spring motorcycle shock absorber according to claim 1, characterized in that: The internal spring adjusting device (2) includes a hydraulic tank (21). A threaded rod (23) is threadedly installed on the top of the hydraulic tank (21). A rotating bolt head (24) is fixedly installed on the top of the threaded rod (23). An adjusting piston (25) is rotatably installed on the bottom of the threaded rod (23). The adjusting piston (25) is slidably installed inside the hydraulic tank (21). A connecting pipe (22) is fixedly connected to the bottom of the hydraulic tank (21). One end of the connecting pipe (22) is connected to the bottom fixed head (13). A flow pipe (26) is opened inside the connecting pipe (22). The hydraulic tank (21) is connected to the bottom fixed head (13) through the flow pipe (26).

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