Motorcycle shock absorber with visual air pressure and adjustable recovery pressure

Abstract

The motorcycle shock absorber comprises a piston rod, an oil tank and a gas cylinder, the end of the piston rod extends into the oil tank and slides relative to the oil tank, a floating piston is arranged in the gas cylinder to divide the gas cylinder into an oil cavity and a nitrogen cavity, a nitrogen inflation opening communicated with the nitrogen cavity is formed in the gas cylinder, and the oil cavity is communicated with the nitrogen inflation opening. The device is characterized in that a barometer used for detecting the pressure of nitrogen in the nitrogen cavity is further arranged in the gas cylinder, and the barometer is matched with the gas cylinder in a sealing mode. By the adoption of the technical scheme, the motorcycle shock absorber is visual in air pressure and adjustable in recovery pressure, and the purposes of real-time monitoring of nitrogen pressure, rapid troubleshooting of faults, quantitative adjustment of damping and long-term stable work are achieved.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle shock absorber technology, and in particular to a motorcycle shock absorber with visualized air pressure and adjustable recovery pressure. Background Technology

[0002] Most existing automobile and motorcycle shock absorbers use nitrogen-assisted damping structures, which are mainly composed of gas cylinder components, valve system components, adjustment components, main shaft components, and seals. They achieve shock absorption and buffering functions through internal nitrogen pressure in conjunction with damping valves.

[0003] Traditional shock absorbers have the following problems:

[0004] 1. Nitrogen pressure is not visible: The internal nitrogen pressure of traditional shock absorbers cannot be directly monitored, and users cannot determine whether the pressure is normal. If there is a pressure leak (the pressure is close to 0), it can only be found by disassembly and inspection, which makes it impossible to troubleshoot the fault in time after the damping function fails.

[0005] 2. Insufficient sealing reliability: Traditional external detection structures are prone to nitrogen leakage, and external impurities such as mud, water, and sand can easily seep into the sealing surface, damaging the sealing effect and affecting the service life of the shock absorber.

[0006] 3. Ambiguous damping adjustment: Damping adjustment relies on manual experience and cannot be accurately set based on quantified air pressure data, resulting in poor damping matching under high-speed and low-speed conditions.

[0007] 4. Insufficient vibration and corrosion resistance: The air pressure detection component is not designed with a buffer structure for the high-frequency vibration of the motorcycle, which is prone to data distortion. In addition, the surface treatment is not optimized in combination with the characteristics of the air pressure component, and the corrosion resistance is difficult to meet the needs of long-term outdoor use.

[0008] 5. Poor structural compatibility: Traditional additional detection components are not well adapted to the structure of the shock absorber cylinder, which can easily increase the overall size and weight, affecting the flexibility of shock absorber installation and use. Utility Model Content

[0009] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a motorcycle shock absorber with visualized air pressure and adjustable recovery pressure, so as to achieve the purpose of real-time monitoring of nitrogen air pressure, rapid fault diagnosis, quantitative adjustment of damping, and long-term stable operation.

[0010] The technical solution of this utility model is as follows: A motorcycle shock absorber with visual air pressure and adjustable recovery pressure, including a piston rod, an oil tank and a gas cylinder. The end of the piston rod extends into the oil tank and slides relative to the oil tank. A floating piston is provided in the gas cylinder to divide the gas cylinder into an oil chamber and a nitrogen chamber. The gas cylinder is provided with a nitrogen filling port communicating with the nitrogen chamber. The gas cylinder is also provided with a pressure gauge for detecting the nitrogen pressure in the nitrogen chamber. The pressure gauge is sealed with the gas cylinder.

[0011] By adopting the above technical solution, the internal air pressure is monitored in real time by a pressure gauge, which can determine whether there is a nitrogen leak in the shock absorber without disassembly. When the air pressure shows 0, the cause of the damping function malfunction can be quickly located, reducing maintenance costs. Based on the quantitative data of the pressure gauge, users can accurately set the air pressure value according to different driving conditions (such as paved roads and off-road roads), realizing personalized matching of recovery and compression damping, improving the stability and comfort of the motorcycle. The pressure gauge can be installed without changing the overall installation size of the shock absorber. It can directly replace traditional products using existing core components without modifying the motorcycle, reducing the cost of promotion and application. The user experience is intuitive: real-time visualization of air pressure allows users to clearly understand the working status of the shock absorber and avoid driving safety hazards caused by abnormal air pressure, which is especially suitable for adjusting the working conditions in professional riding scenarios.

[0012] A further feature of this invention is that the pressure gauge is located inside the nitrogen chamber and at the lower end of the nitrogen chamber. An assembly box is provided inside the nitrogen chamber, and the pressure gauge is fixed inside the assembly box. The assembly box is sealed to the inner wall of the nitrogen chamber by a first sealing ring.

[0013] With the above-mentioned further configuration, the pressure gauge is installed in the assembly box with an embedded structure. The assembly box is sealed to the gas cylinder by a sealing ring, which not only ensures no nitrogen leakage, but also prevents external mud, water and sand particles from seeping in, thus taking into account both sealing performance and protection effect. The first sealing ring can be supported by nitrile rubber or fluororubber to enhance the sealing stability of the sealing ring under high temperature conditions and adapt to different temperature environments.

[0014] A further feature of this invention is as follows: the assembly box includes a separate box body and a cover. The box body is provided with an assembly cavity and a through hole connecting the assembly cavity and the nitrogen chamber. The pressure gauge is pressed into the assembly cavity through the cover, and the sensing head of the pressure gauge is located in the through hole. The inner wall of the assembly cavity is provided with a concave cavity on the outer periphery of the through hole. A second sealing ring is provided in the concave cavity, and the end face of the pressure gauge is in contact with the second sealing ring.

[0015] With the above-mentioned further design, the split design facilitates the installation and removal of the barometer. The cover is pressed onto the barometer, which does not affect the user's view of the barometer, and also limits the barometer to prevent it from falling off and affecting the measurement results. The barometer's sensing head is located in the through hole, making the detection of the gas pressure in the nitrogen chamber more accurate.

[0016] A further feature of this invention is that the outer circumferential surface of the floating piston is provided with a first mounting groove and a second mounting groove, a third sealing ring is provided in the first mounting groove, a piston ring is provided in the second mounting groove, and the third sealing ring and the piston ring are in contact with the inner wall of the gas cylinder.

[0017] By adopting the above-mentioned further design, the oil chamber and nitrogen chamber are effectively cut off to avoid oil-gas mixing, but at the same time, the movement of the floating piston in the gas cylinder is not affected. The third sealing ring can be supported by nitrile rubber or fluororubber, and the piston ring can be made of SF-1 three-layer composite material or silicone material, which effectively reduces costs while ensuring vibration resistance.

[0018] A further feature of this invention is that the gas cylinder has a slot, and a retaining spring is provided in the slot. The retaining spring is fitted onto the outside of the assembly box to fix the assembly box and the gas cylinder.

[0019] By adopting the above-mentioned further design, the assembly box is fixed inside the gas cylinder by a snap ring, which makes the structure of the pressure gauge stable and unaffected by shaking, ensuring accurate pressure measurement.

[0020] A further feature of this invention is that: a lifting ring is fixedly connected to the end of the piston rod located outside the oil tank, an upper support seat is fixedly connected to the lifting ring, a lower support seat is fixedly connected to the outside of the oil tank, and a spring is provided between the upper support seat and the lower support seat.

[0021] With the above-mentioned further configuration, the spring is used for the piston rod to return, and the upper and lower support seats are set to position the spring, which has good stability during operation. Rubber pads can also be connected to the lifting ring to prevent damage caused by impact. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model;

[0023] Figure 2 This is a cross-sectional view of a specific embodiment of the present utility model;

[0024] Figure 3 For Figure 2 Enlarged view of section A;

[0025] Figure 4 This is a schematic diagram of the assembly box according to a specific embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of a barometer assembled in an assembly box according to a specific embodiment of the present invention;

[0027] Figure 6 This is a cross-sectional view of the assembly box according to a specific embodiment of the present utility model;

[0028] Figure 7 This is a schematic diagram of the floating piston and piston rings in a specific embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of a floating piston according to a specific embodiment of the present invention.

[0030] In the diagram, 1. Piston rod; 2. Oil tank; 21. Lower support seat; 3. Gas cylinder; 30. Nitrogen filling port; 31. Oil chamber; 32. Nitrogen chamber; 33. Slot; 34. Snap ring; 4. Floating piston; 41. First mounting slot; 42. Second mounting slot; 43. Third sealing ring; 44. Piston ring; 5. Pressure gauge; 6. Assembly box; 61. Box body; 611. Assembly cavity; 612. Through hole; 613. Concave cavity; 614. Second sealing ring; 62. Cover; 7. First sealing ring; 8. Lifting ring; 81. Upper support seat; 9. Spring; 10. Adjustment assembly. Detailed Implementation

[0031] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] like Figure 1-8As shown, a motorcycle shock absorber with visual air pressure and adjustable recovery pressure includes a piston rod 1, an oil tank 2, and a gas cylinder 3. The end of the piston rod 1 extends into the oil tank 2 and slides relative to the oil tank 2. A piston is connected to the end of the piston rod 1. The oil tank 2 is filled with oil. When the piston rod 1 is impacted by the oil tank 2, it causes the oil in the oil tank 2 to be squeezed into the oil chamber 31 of the gas cylinder 3, producing a damping effect. The gas cylinder 3 is equipped with a floating piston 4 to divide the gas cylinder 3 into an oil chamber 31 and a nitrogen chamber 32. The gas cylinder 3 is provided with nitrogen gas that communicates with the nitrogen chamber 32. The gas cylinder 3 is equipped with an air inlet 30 and a pressure gauge 5 for detecting the nitrogen pressure in the nitrogen chamber 32. The pressure gauge 5 is sealed to the gas cylinder 3. When the shock absorber is working, the internal nitrogen pressure fluctuates with the changes in high-speed and low-speed damping. The pressure gauge 5 captures this data in real time through a built-in sensor and displays the data synchronously on the dial, achieving real-time visualization of the air pressure. By monitoring the internal air pressure in real time through the pressure gauge 5, it is possible to determine whether there is a nitrogen leak in the shock absorber without disassembly. When the air pressure is 0, the cause of the damping function malfunction can be quickly located, reducing maintenance costs. The quantitative data from the air pressure gauge 5 allows users to precisely set the air pressure value according to different driving conditions (such as paved roads and off-road roads), achieving personalized matching of recovery and compression damping, and improving the stability and comfort of the motorcycle. The air pressure gauge 5 can be installed without changing the overall installation size of the shock absorber, using existing core components, and can directly replace traditional products without modifying the motorcycle, reducing the cost of promotion and application. The user experience is intuitive: real-time visualization of air pressure allows users to clearly understand the working status of the shock absorber and avoid driving safety hazards caused by abnormal air pressure, especially suitable for adjusting the working conditions in professional riding scenarios. The casing of the air pressure gauge 5 and the air cylinder 3 can be made of aluminum alloy or stainless steel, with aluminum alloy being preferred to improve corrosion resistance and suitability for extreme outdoor environments. Specifically, AL6061-T6 aluminum alloy can be used. The air pressure gauge 5 can also be replaced with a small electronic display screen to add digital storage of air pressure data and alarm functions, improving the level of intelligence. The piston rod 1 and oil tank 2 are existing technologies, and this utility model does not improve these parts of the structure, so they will not be described in detail.

[0036] Specifically, the assembly structure between the pressure gauge 5 and the gas cylinder 3 is as follows: the pressure gauge 5 is located inside the nitrogen chamber 32, at its lower end. An assembly box 6 is provided inside the nitrogen chamber 32, and the pressure gauge 5 is fixed within the assembly box 6. The assembly box 6 is sealed to the inner wall of the nitrogen chamber 32 by a first sealing ring 7. The pressure gauge 5 is installed in an embedded structure within the assembly box 6. The assembly box 6 is sealed to the gas cylinder 3 by the sealing ring, ensuring no nitrogen leakage and preventing external mud, water, and sand particles from entering. To ensure both sealing performance and protection, the first sealing ring 7 can be supported by nitrile rubber or fluororubber, enhancing the sealing stability of the sealing ring under high-temperature conditions and adapting to different temperature environments. The gas cylinder 3 is provided with a slot 33, and a retaining spring 34 is provided in the slot 33. The retaining spring 34 is fitted outside the assembly box 6 to fix the assembly box 6 and the gas cylinder 3. The assembly box 6 is fixed inside the gas cylinder 3 by the retaining spring 34, so that the structure of the pressure gauge 5 is stable and does not shake due to the influence, and the pressure measurement is accurate.

[0037] The assembly box 6 includes a separate box body 61 and a cover 62. The box body 61 has an assembly cavity 611 and a through hole 612 connecting the assembly cavity 611 and the nitrogen chamber 32. The pressure gauge 5 is pressed into the assembly cavity 611 by the cover 62, and the sensing head of the pressure gauge 5 is located in the through hole 612. The inner wall of the assembly cavity 611 has a recess 613 on the outer periphery of the through hole 612. A second sealing ring 614 is provided in the recess 613, and the end face of the pressure gauge 5 is in contact with the second sealing ring 614. The separate design facilitates the assembly and disassembly of the pressure gauge 5. The cover 62 is pressed onto the pressure gauge 5, which does not affect the user's view of the pressure gauge 5, and limits the pressure gauge 5 to prevent it from falling off and affecting the measurement effect. The second sealing ring 614 further seals the pressure gauge 5, providing double sealing protection. The sensing head of the pressure gauge 5 is located in the through hole 612, making the detection of the pressure in the nitrogen chamber 32 more accurate.

[0038] The floating piston 4 has a first mounting groove 41 and a second mounting groove 42 on its outer peripheral surface. The first mounting groove 41 is provided with a third sealing ring 43, and the second mounting groove 42 is provided with a piston ring 44. The third sealing ring 43 and the piston ring 44 are in contact with the inner wall of the gas cylinder 3, effectively cutting off the oil chamber 31 and the nitrogen chamber 32 to prevent oil and gas mixing, but at the same time, it does not affect the movement of the floating piston 4 in the gas cylinder 3. The third sealing ring 43 can be supported by nitrile rubber or fluororubber, and the piston ring 44 can be made of SF-1 three-layer composite material or silicone material, which effectively reduces costs while ensuring the anti-vibration effect.

[0039] A lifting ring 8 is fixedly connected to the end of the piston rod 1 located outside the oil tank 2. An upper support seat 81 is fixedly connected to the lifting ring 8. A lower support seat 21 is fixedly connected to the outside of the oil tank 2. A spring 9 is provided between the upper support seat 81 and the lower support seat 21. The spring 9 is used for the return of the piston rod 1. The upper support seat 81 and the lower support seat 21 are set to position the spring 9, which provides good stability during operation. Rubber pads can also be connected to the lifting ring 8 to prevent damage caused by impact.

[0040] An adjustment assembly 10 is connected between the oil tank 2 and the gas cylinder 3. The adjustment assembly 10 includes an adjustment cylinder and a flow regulating valve. The two ends of the adjustment cylinder are connected to the oil tank 2 and the gas cylinder 3. The adjustment cylinder is provided with a first adjustment pipe and a second adjustment pipe. Both the first adjustment pipe and the second adjustment pipe are connected to the oil tank 2 and the gas cylinder 3. Both adjustment pipes are provided with flow regulating valves to adjust the on / off state and flow rate between the gas cylinder 3 and the oil tank 2. The adjustment assembly 10 is existing technology. This utility model does not improve the adjustment assembly 10, so it will not be described in detail.

Claims

1. A motorcycle shock absorber with visual air pressure and adjustable recovery pressure, comprising a piston rod (1), an oil tank (2), and a gas cylinder (3), wherein the end of the piston rod (1) extends into the oil tank (2) and slides relative to the oil tank (2), and the gas cylinder (3) is provided with a floating piston (4) to divide the gas cylinder (3) into an oil chamber (31) and a nitrogen chamber (32), and the gas cylinder (3) is provided with a nitrogen filling port (30), characterized in that, The gas cylinder (3) is also equipped with a pressure gauge (5) for detecting the nitrogen pressure in the nitrogen chamber (32), and the pressure gauge (5) is sealed to the gas cylinder (3).

2. The motorcycle shock absorber with visual air pressure and adjustable recovery pressure according to claim 1, characterized in that, The pressure gauge (5) is located in the nitrogen chamber (32) and at the lower end of the nitrogen chamber (32). An assembly box (6) is provided in the nitrogen chamber (32). The pressure gauge (5) is fixed in the assembly box (6). The assembly box (6) is sealed to the inner wall of the nitrogen chamber (32) by a first sealing ring (7).

3. The motorcycle shock absorber with visual air pressure and adjustable recovery pressure according to claim 2, characterized in that, The assembly box (6) includes a separate box body (61) and a cover (62). The box body (61) is provided with an assembly cavity (611) and a through hole (612) connecting the assembly cavity (611) and the nitrogen chamber (32). The pressure gauge (5) is pressed into the assembly cavity (611) through the cover (62), and the sensing head of the pressure gauge (5) is located in the through hole (612). The inner wall of the assembly cavity (611) is provided with a recess (613) on the outer periphery of the through hole (612). A second sealing ring (614) is provided in the recess (613), and the end face of the pressure gauge (5) is in contact with the second sealing ring (614).

4. The motorcycle shock absorber with visual air pressure and adjustable recovery pressure according to claim 1, 2, or 3, characterized in that, The floating piston (4) has a first mounting groove (41) and a second mounting groove (42) on its outer peripheral surface. The first mounting groove (41) has a third sealing ring (43) and the second mounting groove (42) has a piston ring (44). The third sealing ring (43) and the piston ring (44) are in contact with the inner wall of the gas cylinder (3).

5. The motorcycle shock absorber with visual air pressure and adjustable recovery pressure according to claim 2 or 3, characterized in that, The gas cylinder (3) is provided with a slot (33), and a retaining spring (34) is provided in the slot (33). The retaining spring (34) is fitted outside the assembly box (6) to fix the assembly box (6) and the gas cylinder (3).

6. The motorcycle shock absorber with visual air pressure and adjustable recovery pressure according to claim 1, 2, or 3, characterized in that, The piston rod (1) is fixedly connected to a lifting ring (8) at the end outside the oil tank (2). An upper support seat (81) is fixedly connected to the lifting ring (8). A lower support seat (21) is fixedly connected to the outside of the oil tank (2). A spring (9) is provided between the upper support seat (81) and the lower support seat (21).

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