Adjustable upright shock absorber pre-pressed by spring

Abstract

The utility model provides a spring pre-pressing adjustable upright shock absorber which comprises a shock absorber body and a fork pipe fixedly connected in the shock absorber body, an adjusting rod is movably connected in the fork pipe, one end of the adjusting rod is fixedly connected with a piston, one end, away from the piston, of the adjusting rod is fixedly connected with a liner pipe, and one side of the liner pipe is fixedly connected with a spring adjusting screw sleeve. A spring adjusting sleeve is fixedly connected to the inner side of the spring adjusting screw sleeve, a screw plug is fixedly connected to one end of the spring adjusting sleeve, a screw plug spring adjusting shifting fork is fixedly connected to the outer wall of the spring adjusting sleeve, an adjusting knob is fixedly connected to the side, away from the screw plug, of the spring adjusting sleeve, and the spring adjusting sleeve rotates clockwise by rotating the adjusting knob to be matched with the piston. And the spring adjusting sleeve rotates anticlockwise, the spring adjusting sleeve ascends, the spring pre-pressure is reduced, and the shock absorber main body becomes soft, so that synchronous adjustment of the spring and the damping force is realized, the maneuverability is greatly improved, and an ideal shock absorption effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of shock absorbers, and in particular to an adjustable upright shock absorber with spring preload. Background Technology

[0002] In motorcycle front shock absorber design, the most common type is the non-adjustable positive shock absorber. In daily use, this type of shock absorber often has poor adaptability due to changes in the load or different road conditions encountered during riding. Specifically, when the motorcycle load increases or when riding on rough roads, people usually want the damping force of the shock absorber to increase accordingly in order to better suppress the discomfort generated by the shock absorber during vibration. However, when the load is reduced or when riding on a flat road, if the damping force is too large, the shock absorber's reset speed will be slower, resulting in sluggish motorcycle movement response and failing to meet the needs of smooth riding.

[0003] A single-tube upright shock absorber is currently disclosed in Chinese patent document CN202021956041.5, comprising a spring seat, a spring, and a piston. One end of the spring is fixedly looped onto the spring seat, and the other end of the spring is fixedly connected to the piston. The telescopic end of the piston extends into the spring seat, and the helical spacing of the spring gradually increases near the end of the spring seat. This invention provides a single-tube upright shock absorber that can effectively provide a rapid rebound effect when the amplitude of bumps is large.

[0004] However, the above-mentioned patent has certain defects in use. Since the extension end of the piston extends into the spring seat and the helical spacing of the spring near the spring seat gradually increases, the spring preload rebounds with the shock absorber, but the damping force is not adjustable, which will result in poor matching and poor handling. In motorcycle shock absorbers, since the comfort of movement is directly transmitted to the two hands holding the handlebars, the discomfort during movement is very sensitive, and the performance matching of the spring and the damping force is particularly important.

[0005] To address this issue, an adjustable upright shock absorber with spring preload is proposed. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides an adjustable upright shock absorber with spring preload.

[0007] This utility model is achieved using the following technical solution:

[0008] A spring-preloaded adjustable upright shock absorber, comprising:

[0009] Shock absorber body;

[0010] A fork tube is fixedly connected inside the shock absorber body. An adjusting rod is movably connected inside the fork tube. A piston is fixedly connected to one end of the adjusting rod, and a liner is fixedly connected to the end away from the piston. The piston includes a piston rod, a piston ring, a free valve, and a damping adjusting connecting rod. One end of the piston rod is fixedly connected inside the shock absorber body, and a damping adjusting connecting rod is fixedly connected inside the piston rod. One end of the damping adjusting connecting rod passes through the fork tube and is connected to the adjusting rod. A throttling orifice is provided at one end of the piston rod. A piston ring is fixedly connected to the piston rod, and a free valve is fixedly connected to one side of the piston ring.

[0011] A spring adjusting screw sleeve is fixedly connected to one side of the liner, a spring adjusting sleeve is fixedly connected to the inner side of the spring adjusting screw sleeve, a screw plug is fixedly connected to one end of the spring adjusting sleeve, and a screw plug spring adjusting fork is fixedly connected to the outer wall of the spring adjusting sleeve. An adjusting knob is fixedly connected to the side of the spring adjusting sleeve away from the screw plug, and the adjusting knob is fixedly connected to the end of the fork tube.

[0012] In a preferred embodiment of this utility model, the spring adjusting sleeve and the screw spring adjusting fork are threadedly connected, and multiple screws are fixedly installed at the connection between the screw spring adjusting fork and the spring adjusting sleeve.

[0013] In a preferred embodiment of this utility model, a spring is fixedly connected to the side of the liner near the piston.

[0014] In a preferred embodiment of this utility model, the throttling sleeve is fixedly connected to the adjusting rod and the piston rod, and the throttling sleeve is provided with a plurality of throttling holes.

[0015] As a preferred embodiment of this utility model, a limiting ring is provided at the end of the connection between the shock absorber body and the fork tube, an oil seal is fixedly connected to one side of the limiting ring, and a buckle is fixedly connected to the side of the limiting ring away from the limiting ring.

[0016] As a preferred embodiment of this utility model, the shock absorber body is fixedly connected to an upper connection on one side, and the shock absorber body is fixedly connected to a lower connection on the side away from the upper connection.

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] 1. When the front shock absorber body extends, the free valve in the fork tube and the piston ring on the piston rod form a closed working chamber within the fork tube. Simultaneously, this chamber, in conjunction with the damping adjustment connecting rod installed inside the piston rod, moves with the working stroke. As the working chamber moves, the oil pressure increases, and the hydraulic oil, in this closed environment, flows towards the throttling orifice on the upper section of the piston rod, generating a restoring damping force. As the movement continues, the throttling orifice on the upper section of the piston rod is gradually blocked by the free valve, and the restoring damping force gradually increases until the throttling orifice on the upper section of the piston rod is completely blocked, reaching the end of the restoring stroke. This creates a relatively large hydraulic buffer damping force on the restoring side. By rotating the adjustment knob, the adjusting nut on the adjusting rod is driven, and the throttling sleeve rotates accordingly. Multiple throttling orifices on the adjusting sleeve align with the throttling orifice on the upper section of the piston rod. By changing the flow rate of hydraulic oil through the throttling orifice, the restoring damping force is changed, thus achieving the purpose of adjusting the shock absorption effect.

[0019] 2. By rotating the adjustment knob, the spring adjustment sleeve rotates clockwise, the spring adjustment screw sleeve descends, the spring preload increases, and the shock absorber becomes stiffer. By rotating the spring adjustment sleeve counterclockwise, the spring adjustment screw sleeve rises, the spring preload decreases, and the shock absorber becomes softer. This achieves synchronous adjustment of the spring and damping force, greatly improving maneuverability and achieving the ideal shock absorption effect.

[0020] 3. By fixing an adjusting rod inside the fork tube, with a piston fixedly connected to one end of the adjusting rod and a liner fixedly connected to the other end, the liner plays an adjusting role. The entire shock absorber body has a simple manufacturing process, low production cost, and is easy to adjust without the need for special adjusting tools. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the main body of the shock absorber of this utility model;

[0022] Figure 2 This is a diagram of the piston structure of this utility model;

[0023] Figure 3 This is a structural diagram of the spring adjusting sleeve of this utility model;

[0024] Figure 4 This is a structural diagram of the piston rod of this utility model;

[0025] In the diagram: 1. Shock absorber body; 2. Piston; 3. Limiting ring; 4. Oil seal; 5. Clip; 6. Upper connection; 7. Lower connection; 8. Movable rod; 9. Throttling orifice; 10. Piston ring; 11. Free valve; 12. Throttling sleeve; 13. Throttling orifice; 14. Adjusting rod; 15. Fork tube; 16. Adjusting knob; 17. Spring adjusting sleeve; 18. Plug; 19. Spring adjusting fork; 20. Screw; 21. Spring adjusting screw sleeve; 22. Liner; 23. Spring; 24. Damping adjusting connecting rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Example:

[0028] Please see Figures 1-4 An adjustable upright shock absorber with spring preload, comprising:

[0029] Shock absorber body 1;

[0030] A fork tube 15 is fixedly connected inside the shock absorber body 1. An adjusting rod 14 is movably connected inside the fork tube 15. A piston 2 is fixedly connected to one end of the adjusting rod 14, and a liner 22 is fixedly connected to the other end away from the piston 2. The piston 2 includes a piston rod, a piston ring 10, a free valve 11, and a damping adjusting connecting rod. One end of the piston rod is fixedly connected inside the shock absorber body 1, and a damping adjusting connecting rod is fixedly connected inside the piston rod. One end of the damping adjusting connecting rod passes through the fork tube 15 and is connected to the adjusting rod 14. A throttling performance hole 9 is provided at one end of the piston rod. A piston ring 10 is fixedly connected to the piston rod, and a free valve 11 is fixedly connected to one side of the piston ring 10.

[0031] A spring adjusting screw sleeve 21 is fixedly connected to one side of the liner 22. A spring adjusting sleeve 17 is fixedly connected to the inner side of the spring adjusting screw sleeve 21. A screw plug 18 is fixedly connected to one end of the spring adjusting sleeve 17. A screw plug 18 and a spring adjusting fork 19 are fixedly connected to the outer wall of the spring adjusting sleeve 17. An adjusting knob 16 is fixedly connected to the side of the spring adjusting sleeve 17 away from the screw plug 18. The adjusting knob 16 is fixedly connected to the end of the fork tube 15.

[0032] In this embodiment, a fork tube 15 is fixedly connected inside the shock absorber body 1, and an adjusting rod 14 is movably connected inside the fork tube 15. The adjusting rod 14 is used to adjust the damping performance. A piston 2 is fixedly connected to one end of the adjusting rod 14, and a bushing 22 is connected to the other end. The piston 2 includes a piston rod 2, a free valve 11, and a damping adjusting connecting rod 24. One end of the piston rod 2 is fixedly connected inside the shock absorber body 1. The damping adjusting connecting rod 24 is fixedly connected inside the piston rod 8, and one end of the damping adjusting connecting rod 24 passes through the fork tube 15 and is connected to the adjusting rod 14. The end of the piston rod 8 is provided with a throttling performance hole 9 to ensure that the damping force can be adjusted as needed during movement to achieve the ideal shock absorption effect. A piston ring 10 is fixedly connected to the piston rod 2. A free valve 11 is fixedly connected to one side of the piston ring 10. Its function is to automatically regulate the gas flow during high-speed movement. The free valve 11 is fixedly connected to the piston rod 2. A spring adjusting sleeve 21 is fixedly connected to one side of the bushing 22. A spring adjusting sleeve 17 is fixedly connected to the inner side of the spring adjusting sleeve 21. A screw plug 18 is fixedly connected to one end of the spring adjusting sleeve 17. A screw plug 18 spring adjusting fork 19 is fixedly connected to the outer wall of the spring adjusting sleeve 17. An adjusting knob 16 is fixedly connected to the side of the spring adjusting sleeve 17 away from the screw plug 18. The adjusting knob 16 is fixedly connected to the end of the fork tube 15. By rotating the adjusting knob 16, the preload of the screw plug 18 spring 23 can be adjusted, thereby changing the stiffness of the spring 23 to adapt to different road conditions and driving needs.

[0033] Specifically, the spring adjusting sleeve 17 and the screw plug 18 spring adjusting fork 19 are threadedly connected, and multiple screws 20 are fixedly installed at the connection between the screw plug 18 spring adjusting fork 19 and the spring adjusting sleeve 17.

[0034] In this embodiment, the spring adjusting sleeve 17 and the screw plug 18 spring adjusting fork 19 are threadedly connected, and multiple screws 20 are fixedly installed at the connection between the screw plug 18 spring adjusting fork 19 and the spring adjusting sleeve 17. The spring adjusting sleeve 17 and the spring adjusting fork 19 are threadedly connected and fixed with screws 20 to ensure that the two are connected and that the movement is consistent during rotation.

[0035] Specifically, a spring 23 is fixedly connected to the side of the liner 22 near the piston 2.

[0036] In this embodiment, a spring 23 is fixedly connected to the side of the liner 22 near the piston 2. After installation, the spring 23 is in a compressed state and can be rotated by adjusting the knob 16. When the spring adjusting sleeve 17 is rotated clockwise by adjusting the knob 16, the spring adjusting fork 19 also rotates clockwise. Since it can only rotate clockwise in place, the spring adjusting screw sleeve 21 mounted on it will move clockwise downwards, and the liner 22 will move downwards at the same time. At this time, the spring 23 is compressed and moves downwards, the preload of the shock-absorbing spring 23 increases, and the shock absorber body 1 changes accordingly. When the spring adjusting sleeve 17 is rotated counterclockwise by adjusting knob 16, the spring adjusting fork 19 also rotates counterclockwise. Since it can only rotate counterclockwise in place, the spring adjusting screw sleeve 21 mounted on it will move upward counterclockwise, and the bushing 22 will move upward at the same time. At this time, the spring 23 is released and moves upward, the preload of the spring 23 decreases, and the shock absorber body 1 becomes softer. The shock absorber body 1 can adjust the preload of the spring 23 in real time according to different driving needs and road conditions, so that the vehicle always maintains excellent stability and comfort during driving.

[0037] Specifically, a throttling sleeve 12 is provided on one side of the free valve 11, and the throttling sleeve 12 is fixedly connected to the adjusting rod 14. The throttling sleeve 12 is provided with multiple throttling holes 13.

[0038] In this embodiment, the throttling sleeve 12 is fixedly connected to the adjusting rod 14. When the adjusting knob 16 is rotated, the adjusting rod 14 will rotate with the knob, and the throttling sleeve 12 will rotate accordingly. The throttling sleeve 12 is provided with multiple throttling holes 13, and the diameter of the multiple throttling holes 13 decreases from large to small. The different diameters of the rotating throttling sleeve 12 are connected to the throttling performance holes 9 on the upper section of the piston rod 2, thereby precisely controlling the oil flow speed. By changing the flow rate of hydraulic oil flowing through the throttling holes 13, the change of the restoring damping force is realized.

[0039] Specifically, a limiting ring 3 is provided at the end of the connection between the shock absorber body 1 and the fork tube 15. An oil seal 4 is fixedly connected to one side of the limiting ring 3, and a buckle 5 is fixedly connected to the side of the limiting ring 3 away from the limiting ring 3.

[0040] In this embodiment, a limiting ring 3 is provided at the end of the connection between the shock absorber body 1 and the fork tube 15. The limiting ring 3 is used to limit the stroke of the fork tube 15 to ensure that it will not exceed the safe range due to external force. An oil seal 4 is provided on the inner side of the limiting ring 3 to prevent internal oil leakage. A buckle 5 is fixedly connected on the outer side to fix the fork tube 15 to the shock absorber body 1.

[0041] Specifically, an upper connection 6 is fixedly connected to one side of the shock absorber body 1, and a lower connection 7 is fixedly connected to the side of the shock absorber body 1 away from the upper connection 6.

[0042] In this embodiment, both the upper connection 6 and the lower connection 7 are fixedly connected to the outer wall of the shock absorber body 1. Both the upper connection 6 and the lower connection 7 are used to connect the frame components to form a stable support structure.

[0043] The principle of this utility model is as follows: When the front shock absorber body 1 extends, the free valve 11 in the fork tube 15 and the piston ring 10 on the piston rod 2 form a closed working chamber in the fork tube 15. Simultaneously, it cooperates with the damping adjustment connecting rod 24 installed inside the piston rod. As the working stroke moves, the oil pressure in the working chamber increases. In the closed environment, the hydraulic oil flows to the throttling orifice 9 in the upper section of the piston rod 2, generating a restoring damping force. As the movement continues, the throttling orifice 9 in the upper section of the piston rod 2 is gradually blocked by the free valve 11, and the restoring damping force gradually increases until the throttling orifice 9 in the upper section of the piston rod 2 is completely blocked, reaching the end of the restoring stroke. This constitutes a relatively large hydraulic buffer damping force on the restoring side. By rotating the adjustment knob 16, when the spring adjustment sleeve 17 is rotated clockwise by the adjustment knob 16, the spring adjustment fork 19 also moves accordingly. When the spring adjusting sleeve 21 is rotated clockwise, it moves downward clockwise, and the bushing 22 moves downward simultaneously. At this time, the spring 23 is compressed and moves downward, increasing the preload of the damping spring 23 and stiffening the damper body 1. When the spring adjusting sleeve 17 is rotated counterclockwise by adjusting knob 16, the spring adjusting fork 19 also rotates counterclockwise, and the spring adjusting sleeve 21 moves upward counterclockwise, while the bushing 22 moves upward simultaneously. At this time, the spring 23 is released and moves upward, decreasing the preload of the spring 23 and softening the damper body 1. While the adjusting knob 16 is rotated, the adjusting rod 14 rotates with the knob, and the throttling sleeve 12 rotates accordingly. The multiple throttling holes 13 on the rotating throttling sleeve 12 connect with the throttling performance holes 9 on the upper section of the piston rod 2, forming a gradually increasing restoring damping force.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A spring-preloaded adjustable right-hand-up shock absorber, characterized in that Include: The shock absorber body; The fork tube is fixedly connected inside the shock absorber body, the fork tube is movably connected with the adjusting rod, one end of the adjusting rod is fixedly connected with the piston, the end away from the piston is fixedly connected with the bushing, the piston includes piston rod, piston ring, free valve, damping adjustment connecting rod, one end of the piston rod is fixedly connected inside the shock absorber body, and the damping adjustment connecting rod is fixedly connected inside the piston rod, and one end of the damping adjustment connecting rod is connected with the adjusting rod through the fork tube, one end of the piston rod is provided with a throttling performance hole, the piston rod is fixedly connected with the piston ring, and one side of the piston ring is fixedly connected with the free valve; The bushing is fixedly connected with the spring adjusting sleeve on one side, the spring adjusting sleeve is fixedly connected with the spring adjusting sleeve on the inner side, the spring adjusting sleeve is fixedly connected with the screw plug on one end, and the spring adjusting sleeve is fixedly connected with the screw plug spring adjusting fork on the outer wall, the spring adjusting sleeve is fixedly connected with the adjusting knob on the side away from the screw plug, and the adjusting knob is fixedly connected at the end of the fork tube.

2. A spring preloaded adjustable righting shock absorber according to claim 1, characterized in that: The spring adjusting sleeve and the screw plug spring adjusting fork are screw connected, and a plurality of screws are fixedly installed at the connection between the screw plug spring adjusting fork and the spring adjusting sleeve.

3. A spring preloaded adjustable righting shock absorber according to claim 2, characterized in that: The bushing is fixedly connected with the spring on the side close to the piston.

4. A spring preloaded adjustable righting shock absorber according to claim 3, characterized in that: The free valve is provided with a throttling sleeve on one side, and the throttling sleeve is fixedly connected on the adjusting rod, and a plurality of throttling holes are arranged on the throttling sleeve.

5. A spring preloaded adjustable righting shock absorber according to claim 4, characterized in that: The end of the shock absorber body and the fork tube is provided with a limiting ring, one side of the limiting ring is fixedly connected with an oil seal, and the side away from the limiting ring of the limiting ring is fixedly connected with a buckle.

6. A spring preloaded adjustable righting shock absorber according to claim 5, characterized in that: One side of the shock absorber body is fixedly connected with an upper connector, and the side away from the upper connector of the shock absorber body is fixedly connected with a lower connector.

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