Self-adaptive damping shock absorber

Abstract

The invention discloses a self-adaptive damping shock absorber, and relates to the technical field of shock absorbers, the self-adaptive damping shock absorber comprises a working cylinder, a suspension part and a dustproof mechanism, the dustproof mechanism is arranged at the upper part of the working cylinder, the end part of the working cylinder is connected with the suspension part, the suspension part comprises a lower suspension ring and an upper suspension ring, and the upper suspension ring is connected with a self-adaptive part; the self-adaptive component comprises an inertia block, the valve rod and a spring seat, the upper portion of the spring seat is connected with the inertia block, the inertia block is connected with the upper hanging ring, and the lower portion of the spring seat is connected with the valve rod. According to the self-adaptive damping shock absorber, the folding dustproof sheath can effectively prevent external dust and impurities from entering the shock absorber; an annular labyrinth groove is formed in the sealing seat and filled with lubricating grease, and multiple sealing protection is formed. And a transverse roller and a vertical roller are arranged in the cleaning seat to synchronously roll, dust and impurities on the surface of the valve rod can be wiped and cleaned in all directions, the dust is prevented from being attached to the surface of the valve rod to aggravate abrasion, and the movement smoothness of the valve rod is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of shock absorber technology, and in particular to an adaptive damping shock absorber. Background Technology

[0002] Vibration dampers are a core component in various types of equipment requiring shock absorption and cushioning, and their performance directly affects the operational stability, service life, and user comfort of the equipment. Adaptive damping vibration dampers, with their ability to automatically adjust the damping coefficient based on external vibration intensity, frequency, and other parameters, offer wider adaptability and superior shock absorption compared to traditional fixed damping vibration dampers, making them a research hotspot and application trend in the industry.

[0003] Most existing adaptive damping shock absorbers suffer from poor dust protection: core moving components such as the valve stem are exposed to the external environment for extended periods, making them prone to dust and impurities. This not only accelerates component wear and affects the accuracy and sensitivity of adaptive damping adjustment, but also allows dust to enter the shock absorber, contaminating the working medium and reducing the overall service life of the shock absorber. Furthermore, existing dust protection mechanisms are poorly designed, either offering limited dust protection or lacking flexibility to adapt to the reciprocating motion of the valve stem, and lacking a cleaning function for the valve stem, making it difficult to achieve long-term stable dust protection. Summary of the Invention

[0004] The purpose of this invention is to provide an adaptive damping shock absorber that solves the problem that valve stems in existing shock absorbers are easily contaminated with dust and impurities due to long-term exposure to the external environment.

[0005] To achieve the above objectives, the present invention provides an adaptive damping shock absorber, comprising a working cylinder, a suspension component, and a dustproof mechanism. The dustproof mechanism is disposed on the upper part of the working cylinder, and the end of the working cylinder is connected to the suspension component. The suspension component has a lower hanging ring and an upper hanging ring. The upper hanging ring is connected to an adaptive component. The adaptive component includes an inertial block, a valve stem, and a spring seat. The upper part of the spring seat is connected to the inertial block, the inertial block is connected to the upper hanging ring, and the lower part of the spring seat is connected to the valve stem.

[0006] Preferably, the valve stem is disposed inside the dustproof mechanism, which includes a folded dustproof cover, a cleaning seat, and a sealing seat. The upper part of the sealing seat is connected to the dustproof cover, the inner part of the dustproof cover is connected to the cleaning seat, and the cleaning seat is connected to the lower part of the folded dustproof cover.

[0007] Preferably, the cleaning seat is provided with a support plate one and a support plate two. The support plate two and the support plate one are symmetrically arranged about the cleaning seat. The cleaning seat is connected to the support plate one and the support plate two by bolts. The support plate two is connected to a fixing rod. The end of the fixing rod is connected to a transverse roller. The transverse roller is in contact with the valve stem.

[0008] Preferably, the support plate has two connection positions at its ends, both of which are connected to the vertical rollers, and both of the vertical rollers are connected to the valve stem.

[0009] Preferably, the lower part of the folding dustproof cover is provided with a support ring, the interior of the support ring is connected to the cleaning seat, the lower part of the support ring is provided with an installation groove, the installation groove is connected to the sealing seat, the sealing seat is provided with a protrusion, the protrusion is adapted to the installation groove, and the sealing seat is provided with an annular labyrinth groove, which is filled with grease.

[0010] Preferably, the folding dustproof cover has a three-layer structure, consisting of ultra-high molecular weight polyethylene, polyester fiber reinforced mesh, and neoprene rubber coated nylon fabric from the inside out.

[0011] Preferably, the dustproof sleeve is connected to the working cylinder, and the lower part of the working cylinder is connected to the lower lifting ring through a connecting seat.

[0012] Preferably, the inertial block and the valve stem are connected by a flat key and a lock nut.

[0013] Preferably, the horizontal roller is made of rigid nylon, and the vertical roller is made of flexible polyurethane.

[0014] Therefore, this invention employs the aforementioned adaptive damping shock absorber. The folding dustproof sleeve combines wear resistance, tensile strength, and waterproof and dustproof properties, effectively preventing external dust and impurities from entering the shock absorber's interior. Simultaneously, an annular labyrinth groove filled with grease is provided within the sealing seat, forming multiple layers of sealing protection, further enhancing the sealing and dustproof effect, preventing dust contamination of the working medium, and extending the shock absorber's service life. The cleaning seat contains symmetrical support plates one and two. The transverse roller on support plate two contacts the valve stem laterally, while the two vertical rollers on support plate one contact the valve stem vertically. When the valve stem reciprocates, the transverse and vertical rollers roll synchronously, enabling comprehensive wiping and cleaning of dust and impurities on the valve stem surface. This prevents dust from adhering to the valve stem surface and aggravating wear, ensuring smooth valve stem movement, and thus ensuring the accuracy and sensitivity of the adaptive damping adjustment.

[0015] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment of an adaptive damping shock absorber according to the present invention; Figure 2 This is a schematic diagram of a folded dustproof sleeve structure for an adaptive damping shock absorber according to the present invention; Figure 3 This is a schematic diagram of the sealing seat structure of an adaptive damping shock absorber according to the present invention; Figure 4 This is a schematic diagram of the internal structure of the cleaning seat of an adaptive damping shock absorber according to the present invention; Figure 5 This is a partial cross-sectional view of an adaptive damping shock absorber according to the present invention; Figure Labels 1. Upper hanging ring; 2. Folding dustproof sleeve; 3. Clamp; 4. Connecting seat; 5. Lower hanging ring; 6. Support ring; 7. Mounting groove; 8. Annular labyrinth groove; 9. Protrusion; 10. Sealing seat; 11. Support plate one; 12. Connecting position; 13. Valve stem; 14. Vertical roller; 15. Horizontal roller; 16. Support plate two; 17. Fixing rod; 18. Spring seat; 19. Working cylinder; 20. Inertia block. Detailed Implementation

[0017] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] Example Please see Figures 1-5 The present invention provides an adaptive damping shock absorber, including a working cylinder 19, a suspension component and a dustproof mechanism. The dustproof mechanism is located on the upper part of the working cylinder 19 and is used to protect the core components inside the working cylinder 19 from dust. The end of the working cylinder 19 is connected to the suspension component. The suspension component has a lower hanging ring 5 and an upper hanging ring 1. The upper hanging ring 1 is connected to the adaptive component.

[0020] The adaptive component includes an inertial block 20, a valve stem 13, and a spring seat 18. The upper part of the spring seat 18 is connected to the inertial block 20, the inertial block 20 is connected to the upper hanging ring 1, and the lower part of the spring seat 18 is connected to the valve stem 13. The inertial block 20 senses external vibrations and drives the valve stem 13 to move, thus achieving adaptive damping adjustment. The lower part of the spring seat 18 is fixedly connected to the valve stem 13 by threads. The inertial block 20 and the valve stem 13 are also fixedly connected by a flat key and a lock nut. The flat key ensures that the power of the inertial block 20 can be smoothly transmitted to the valve stem 13, and the lock nut prevents the connection between the valve stem 13 and the inertial block 20 from loosening, ensuring the stability of the adaptive adjustment.

[0021] The valve stem 13 is located inside the dustproof mechanism, which provides both guidance and dust protection for the valve stem 13. The dustproof mechanism includes a folded dustproof cover 2, a cleaning seat, and a sealing seat 10. The upper part of the sealing seat 10 is connected to the dustproof cover, the inside of the dustproof cover is connected to the cleaning seat, and the cleaning seat is fixedly connected to the lower part of the folded dustproof cover 2, forming a triple dustproof structure of protection, cleaning, and sealing, which blocks external dust from entering in all directions.

[0022] The cleaning seat contains a support plate 11 and a support plate 2. The support plate 2 11 and the support plate 11 are symmetrically arranged about the cleaning seat to ensure the guiding balance of the valve stem 13. The cleaning seat is detachably connected to the support plate 11 and the support plate 2 16 by bolts, which facilitates subsequent maintenance and component replacement. The support plate 2 16 is connected to the fixing rod 17. The end of the fixing rod 17 is rotatably connected to the transverse roller 15 through a bearing. The transverse roller 15 makes rolling contact with the side of the valve stem 13, which provides lateral guidance and cleaning for the valve stem 13 and removes larger particulate impurities adhering to the surface of the valve stem 13. The transverse roller 15 is made of hard nylon, which has excellent wear resistance and a low coefficient of friction, and can effectively protect the valve stem 13.

[0023] The support plate 11 has two connecting positions 12 at its ends, which are evenly arranged along the length of the support plate 11. Each connecting position 12 is rotatably connected to a vertical roller 14 via a bearing. Both vertical rollers 14 make rolling contact with the surface of the valve stem 13, providing vertical guidance and cleaning for the valve stem 13. The vertical rollers 14 are made of flexible polyurethane, which has a certain degree of elasticity, buffering the impact force between the valve stem 13 and the roller, preventing scratches on the surface of the valve stem 13, and enhancing the guiding fit.

[0024] The lower part of the folding dustproof cover 2 is provided with a support ring 6, which is made of steel plate and is used to connect and enhance the structural rigidity of the lower part of the folding dustproof cover 2 to prevent it from deforming under vibration conditions. The lower part of the support ring 6 has an annular mounting groove 7, which is adapted to connect with the upper part of the sealing seat 10. The upper part of the sealing seat 10 has an annular protrusion 9 integrally formed, which is precisely adapted to the mounting groove 7 to ensure a tight connection and prevent dust from entering from the connection. The interior of the sealing seat 10 has two annular labyrinth grooves 8, which are filled with lithium-based grease to form a labyrinth seal structure, further improving the dustproof sealing effect, and at the same time lubricating the valve stem 13 to reduce wear on the sealing parts. A clamp 3 is provided at the connection between the folding dustproof cover 2 and the sealing seat 10.

[0025] The folding dustproof cover 2 has a three-layer structure, consisting of ultra-high molecular weight polyethylene, polyester fiber reinforced mesh, and neoprene rubber coated nylon fabric from the inside out. The ultra-high molecular weight polyethylene layer has excellent wear resistance and corrosion resistance; the polyester fiber reinforced mesh layer is used to enhance the tensile and tear resistance of the cover; and the neoprene rubber coated nylon fabric layer has good waterproof, dustproof, and anti-aging properties, and can be used for a long time under harsh working conditions.

[0026] The lower part of the folding dustproof cover 2 is fixedly connected to the upper part of the working cylinder 19 through a flange, so as to achieve a sealed connection between the dustproof mechanism and the working cylinder 19; the lower part of the working cylinder 19 is welded and fixed with a connecting seat 4, and the working cylinder 19 is detachably connected to the lower lifting ring 5 through the connecting seat 4 by bolts, which facilitates the installation, disassembly and replacement of the suspension components.

[0027] In actual operation, external vibrations are transmitted to the inertial block 20 through the suspension components. The inertial block 20 drives the spring seat 18 and the valve stem 13 to reciprocate, achieving adaptive damping adjustment. At the same time, during the reciprocating motion of the valve stem 13, the horizontal roller 15 and the vertical roller 14 inside the cleaning seat roll synchronously, cleaning the surface of the valve stem 13 in all directions. The folding dustproof sleeve 2 expands and contracts with the movement of the valve stem 13, preventing external dust from entering. The annular labyrinth groove 8 and lubricating grease inside the sealing seat 10 further enhance the sealing and dustproof effect, ensuring the long-term stable operation of the shock absorber.

[0028] Therefore, this invention employs the aforementioned adaptive damping shock absorber, which offers excellent dust protection. The folded dustproof sleeve combines wear resistance, tensile strength, and waterproof and dustproof properties, effectively preventing external dust and impurities from entering the shock absorber. Simultaneously, an annular labyrinth groove filled with grease is provided within the sealing seat, forming multiple layers of sealing protection, further enhancing the sealing and dustproof effect, preventing dust contamination of the working medium, and extending the shock absorber's service life. The cleaning seat contains symmetrical support plates one and two. The transverse roller on support plate two contacts the valve stem laterally, while the two vertical rollers on support plate one contact the valve stem vertically. When the valve stem reciprocates, the transverse and vertical rollers roll synchronously, enabling comprehensive wiping and cleaning of dust and impurities on the valve stem surface. This prevents dust from adhering to the valve stem surface and aggravating wear, ensuring smooth valve stem movement and thus guaranteeing the accuracy and sensitivity of adaptive damping adjustment. The inertia block is connected to the valve stem via a flat key and a locking nut, ensuring a secure and reliable connection and preventing loosening and abnormal noises under long-term vibration conditions. The foldable dustproof sleeve can expand and contract with the reciprocating motion of the valve stem, providing high flexibility without affecting the normal operation of the shock absorber. The materials of each component are reasonably selected, combining wear resistance, corrosion resistance and tensile strength, which can adapt to complex working environments, effectively extend the overall service life of the shock absorber and reduce the cost of use and maintenance.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An adaptive damping shock absorber, characterized in that: The device includes a working cylinder, a suspension component, and a dustproof mechanism. The dustproof mechanism is located on the upper part of the working cylinder. The end of the working cylinder is connected to the suspension component. The suspension component has a lower hanging ring and an upper hanging ring. The upper hanging ring is connected to an adaptive component. The adaptive component includes an inertial block, a valve stem, and a spring seat. The upper part of the spring seat is connected to the inertial block, the inertial block is connected to the upper hanging ring, and the lower part of the spring seat is connected to the valve stem.

2. The adaptive damping shock absorber according to claim 1, characterized in that: The valve stem is disposed inside the dustproof mechanism, which includes a folded dustproof cover, a cleaning seat, and a sealing seat. The upper part of the sealing seat is connected to the dustproof cover, the inner part of the dustproof cover is connected to the cleaning seat, and the cleaning seat is connected to the lower part of the folded dustproof cover.

3. The adaptive damping shock absorber according to claim 2, characterized in that: The cleaning seat is provided with a support plate one and a support plate two. The support plate two and the support plate one are symmetrically arranged about the cleaning seat. The cleaning seat is connected to the support plate one and the support plate two by bolts. The support plate two is connected to a fixed rod. The end of the fixed rod is connected to a transverse roller. The transverse roller is in contact with the valve stem.

4. The adaptive damping shock absorber according to claim 3, characterized in that: The support plate has two connection positions at its ends. Both connection positions are connected to the vertical rollers, and both vertical rollers are connected to the valve stem.

5. An adaptive damping shock absorber according to claim 4, characterized in that: The lower part of the folding dustproof cover is provided with a support ring, the inside of which is connected to the cleaning seat. The lower part of the support ring is provided with an installation groove, which is connected to the sealing seat. The sealing seat is provided with a protrusion that is adapted to the installation groove. The sealing seat is provided with an annular labyrinth groove filled with grease.

6. The adaptive damping shock absorber according to claim 5, characterized in that: The foldable dustproof cover has a three-layer structure, consisting of ultra-high molecular weight polyethylene, polyester fiber reinforced mesh, and neoprene rubber coated nylon fabric from the inside out.

7. An adaptive damping shock absorber according to claim 6, characterized in that: The dustproof sleeve is connected to the working cylinder, and the lower part of the working cylinder is connected to the lower lifting ring through a connecting seat.

8. An adaptive damping shock absorber according to claim 1, characterized in that: The inertial block is connected to the valve stem by a flat key and a lock nut.

9. An adaptive damping shock absorber according to claim 4, characterized in that: The horizontal roller is made of rigid nylon, and the vertical roller is made of flexible polyurethane.

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