New type of high-pressure nitrogen shock absorber with adjustable bidirectional damping for both recovery and compression

Abstract

This utility model relates to the technical field of high-pressure nitrogen shock absorbers, specifically to a novel high-pressure nitrogen shock absorber with adjustable bidirectional damping for both recovery and compression. It includes an upper cover and a bottom cover, with an oil reservoir sleeved between them. A pressure rod is fixed to the middle of the upper cover, and its middle section is fixedly connected to a sliding sleeve. An upper damping structure is sleeved at the top center of the pressure rod, and its bottom is connected to a middle damping structure. A bottom valve assembly is fixed to the inner wall of the bottom cover. The upper damping structure includes a conical sleeve, an inner bushing within the conical sleeve, a conical spring outside the conical sleeve, and an outer bushing outside the conical spring. This design reduces manufacturing complexity and costs, while also minimizing installation space requirements. Compared to similar products, it reduces costs by approximately 30% and improves installation adaptability by 40%, making it easier to promote and apply on a large scale in industrial production and transportation sectors, providing a cost-effective shock absorption solution for industry development.

Description

Technical Field

[0001] This utility model relates to the technical field of high-pressure nitrogen shock absorbers, specifically to a novel high-pressure nitrogen shock absorber with adjustable bidirectional damping for both recovery and compression. Background Technology

[0002] In modern industry and transportation, the performance of shock absorbers directly affects the operational stability and safety of equipment and vehicles. With increasingly complex application scenarios, the limitations of traditional hydraulic shock absorbers are becoming increasingly apparent. They rely on oil friction to dissipate energy and reduce vibration, but under high-frequency vibrations, they are prone to cavitation, leading to a decrease in damping force. Furthermore, they are sensitive to temperature, making it difficult to provide stable performance across the entire temperature range.

[0003] The application of nitrogen shock absorbers has revolutionized vibration damping technology. Using high-pressure nitrogen as the buffer medium, it leverages the compressibility of the gas to rapidly absorb vibration energy. An oil-gas separation structure prevents oil emulsification, resulting in significantly improved heat dissipation efficiency compared to traditional shock absorbers. It is widely used in high-end equipment.

[0004] However, existing nitrogen shock absorbers have shortcomings in terms of bidirectional adjustment of both restoring and compression damping. Their adjustment range is narrow, making them unable to adapt to complex operating conditions in real time; the adjustment structure is complex, costly, and installation is restricted, making it difficult to meet the demands of industrial production and transportation sectors for high-performance shock absorbers. Therefore, developing a new type of bidirectional damping adjustable high-pressure nitrogen shock absorber, achieving precise adjustment and structural optimization, has become an urgent problem to be solved by the industry. Utility Model Content

[0005] Technical problems to be solved

[0006] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a novel high-pressure nitrogen shock absorber with adjustable bidirectional damping for both recovery and compression, which can effectively solve the problems in the existing technology.

[0007] Technical solution

[0008] This utility model provides a novel high-pressure nitrogen shock absorber with adjustable bidirectional damping for both recovery and compression, including an upper cover and a bottom cover. An oil reservoir is sleeved between the upper cover and the bottom cover. A pressure rod is fixed in the middle of the upper cover, and the middle of the pressure rod is fixedly connected to a sliding sleeve. An upper damping structure is sleeved at the middle of the top of the pressure rod, and the bottom of the pressure rod is connected to a middle damping structure. A bottom valve assembly is fixed on the inner wall of the bottom cover. The upper damping structure includes a conical sleeve, an inner bushing disposed within the conical sleeve, a conical spring disposed outside the conical sleeve, and an outer bushing disposed outside the conical spring. The middle damping structure includes a bottom ring, a convex ring disposed within the bottom ring, and a bottom spring sleeved outside the convex ring. A top spring is fixed at the top of the bottom ring.

[0009] Furthermore, the upper cover is fitted on the outside of the oil storage tank, the bottom cover is fitted on the inside of the oil storage tank, and the sliding sleeve is fitted on the inside of the oil storage tank.

[0010] Furthermore, a circular ring structure is fixed in the middle of the pressure rod, and the top end of the top spring is fixedly connected to the circular ring structure.

[0011] Furthermore, the bottom ring has a through hole structure in the middle, and the upper and lower surfaces of the through hole are rounded.

[0012] Furthermore, the conical spring is flared, with a smaller top and a larger bottom. A fastening ring is fixed to the outer side of the outer bushing, a buffer sleeve is fixed to the top of the inner bushing, a cover plate is fixed to the top of the buffer sleeve, and the middle of the cover plate has a through-type structure.

[0013] Furthermore, the outer bushing is fixed to the inner wall of the sliding sleeve, and the bottom ring is fixed to the inner wall of the oil reservoir. Beneficial effects

[0014] This invention utilizes a two-tiered structure consisting of an upper damping structure and a middle damping structure. Users can connect and fix these two structures to the pressure bar, solving the problem of existing nitrogen shock absorbers being unable to adapt to a full temperature range and complex road conditions. Its optimized oil-gas separation and heat dissipation structure, combined with precise damping adjustment, ensures stable operation in extreme temperature environments and seamless switching between different road conditions such as flat highways, rugged mountain roads, and muddy sections. This effectively ensures reliable operation of vehicles and equipment in various environments. The simplified bidirectional damping adjustment structure reduces the number of precision parts, lowers production process difficulty and manufacturing costs, and reduces installation space requirements. Compared to similar products, the cost is reduced by approximately 30%, and installation adaptability is improved by 40%, making it easier to promote large-scale application in industrial production and transportation sectors, providing a cost-effective shock absorption solution for industry development.

[0015] In this case, the conical sleeve structure, in conjunction with the conical spring structure, can buffer the movement by having the two conical structures collide and contact each other when swaying occurs. The top cover plate structure provides a closed connection, while the bottom ring and convex ring structures in the middle damping structure are fixed and sleeved with the pressure rod. The bottom spring and top spring structures achieve bidirectional buffering. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 3 This is a cross-sectional structural breakdown view of the present invention.

[0020] The labels in the diagram represent: 1. Top cover; 11. Pressure rod; 12. Sliding sleeve; 2. Bottom cover; 3. Oil reservoir; 4. Upper damping structure; 41. Conical sleeve; 42. Inner bushing; 43. Outer bushing; 44. Conical spring; 45. Buffer sleeve; 46. Cover plate; 5. Middle damping structure; 51. Bottom ring; 52. Convex ring; 53. Bottom spring; 54. Top spring; 6. Bottom valve assembly. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Example: A novel high-pressure nitrogen shock absorber with adjustable bidirectional damping for both recovery and compression, see attached diagram. Figure 1 - Appendix Figure 3 The system includes an upper cover 1 and a bottom cover 2. An oil storage tank 3 is sleeved between the upper cover 1 and the bottom cover 2. A pressure rod 11 is fixed in the middle of the upper cover 1. The middle of the pressure rod 11 is fixedly connected to a sliding sleeve 12. An upper damping structure 4 is sleeved in the middle of the top of the pressure rod 11. The bottom of the pressure rod 11 is connected to a middle damping structure 5. A bottom valve assembly 6 is fixed on the inner wall of the bottom cover 2. The upper damping structure 4 includes a conical sleeve 41, an inner bushing 42 disposed in the conical sleeve 41, a conical spring 44 disposed on the outside of the conical sleeve 41, and an outer bushing 43 disposed on the outside of the conical spring 44. The middle damping structure 5 includes a bottom ring 51, a convex ring 52 disposed in the bottom ring 51, and a bottom spring 53 sleeved on the outside of the convex ring 52. A top spring 54 is fixed at the top of the bottom ring 51.

[0024] The upper cover 1 is fitted onto the outside of the oil reservoir 3, the bottom cover 2 is fitted onto the inside of the oil reservoir 3, and the sliding sleeve 12 is fitted onto the inside of the oil reservoir 3. The two sets of structures—the upper damping structure 4 and the middle damping structure 5—allow the user to connect and fix the two sets of damping structures to the pressure rod 11, solving the problem that existing nitrogen shock absorbers are difficult to adapt to the full temperature range and complex road conditions. Its optimized oil-gas separation and heat dissipation structure, combined with precise damping adjustment, allows for stable operation in extreme temperature environments and seamless switching between different road conditions such as flat highways, rugged mountain roads, and muddy sections, effectively ensuring reliable operation of vehicles and equipment in various environments. It simplifies the bidirectional damping adjustment structure, reduces the number of precision parts, lowers the difficulty of production processes and manufacturing costs, and reduces installation space requirements. Compared with similar products, the cost is reduced by approximately 30%, and installation adaptability is improved by 40%, making it easier to promote large-scale application in industrial production and transportation, providing a cost-effective shock absorption solution for industry development.

[0025] A circular ring structure is fixed to the middle of the pressure rod 11, and the top end of the top spring 54 is fixedly connected to the circular ring structure; a through hole structure is opened in the middle of the bottom ring 51, and the upper and lower surfaces of the through hole are rounded; the conical spring 44 is trumpet-shaped with a smaller top and a larger bottom; a fastening ring is fixed to the outside of the outer bushing 43; a buffer sleeve 45 is fixed to the top of the inner bushing 42; a cover plate 46 is fixed to the top of the buffer sleeve 45; and the middle of the cover plate 46 is a through structure. The outer bushing 43 is fixed to the inner wall of the sliding sleeve 12, and the bottom ring 51 is fixed to the inner wall of the oil reservoir 3. The conical sleeve 41 structure, in conjunction with the conical spring 44 structure, can be buffered by the collision and contact of the two sets of conical structures when shaking occurs, and is sealed by the top cover plate 46 structure. The bottom ring 51 and the convex ring 52 structure in the middle damping structure 5 are fixed and sleeved with the pressure rod 11. The bottom spring 53 and the top spring 54 structure realize bidirectional buffering.

[0026] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A novel high-pressure nitrogen shock absorber with adjustable bidirectional damping for both recovery and compression, characterized in that, Includes an upper cover (1) and a bottom cover (2), with an oil reservoir (3) fitted between the upper cover (1) and the bottom cover (2). A pressure rod (11) is fixed in the middle of the upper cover (1), and the middle of the pressure rod (11) is fixedly connected to a sliding sleeve (12). An upper damping structure (4) is fitted in the middle of the top of the pressure rod (11), and the bottom of the pressure rod (11) is connected to a middle damping structure (5). A bottom valve assembly (6) is fixed on the inner wall of the bottom cover (2). The upper damping... The structure (4) includes a conical sleeve (41), an inner bushing (42) disposed inside the conical sleeve (41), a conical spring (44) disposed outside the conical sleeve (41), and an outer bushing (43) disposed outside the conical spring (44). The middle damping structure (5) includes a bottom ring (51), a convex ring (52) disposed inside the bottom ring (51), and a bottom spring (53) sleeved outside the convex ring (52). A top spring (54) is fixed at the top of the bottom ring (51).

2. The novel high-pressure nitrogen shock absorber with adjustable bidirectional damping for both recovery and compression as described in claim 1, characterized in that, The upper cover (1) is fitted on the outside of the oil storage tank (3), the bottom cover (2) is fitted on the inside of the oil storage tank (3), and the sliding sleeve (12) is fitted on the inside of the oil storage tank (3).

3. The novel high-pressure nitrogen shock absorber with adjustable bidirectional damping for both recovery and compression as described in claim 1, characterized in that, The middle part of the pressure rod (11) is fixed with a ring structure, and the top end of the top spring (54) is fixedly connected to the ring structure.

4. The novel high-pressure nitrogen shock absorber with adjustable bidirectional damping for both recovery and compression as described in claim 1, characterized in that, The bottom ring (51) has a through hole structure in the middle, and the upper and lower surfaces of the through hole are rounded.

5. The novel high-pressure nitrogen shock absorber with adjustable bidirectional damping for both recovery and compression as described in claim 4, characterized in that, The conical spring (44) is flared, with a smaller top and a larger bottom. A fastening ring is fixed to the outer side of the outer bushing (43). A buffer sleeve (45) is fixed to the top of the inner bushing (42). A cover plate (46) is fixed to the top of the buffer sleeve (45). The middle part of the cover plate (46) is a through structure.

6. The novel high-pressure nitrogen shock absorber with adjustable bidirectional damping for both recovery and compression as described in claim 1, characterized in that, The outer bushing (43) is fixed to the inner wall of the sliding sleeve (12), and the bottom ring (51) is fixed to the inner wall of the oil storage tank (3).

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