Rebound adjusting structure for head of piston rod of nitrogen shock absorber

By setting a shaft channel and threaded hole in the head of the piston rod of the nitrogen shock absorber, combining the adjustment core and the rebound adjustment wheel, the problem of inability to adjust due to space limitations is solved, and the outward movement and convenience of the rebound adjustment function are improved.

CN223152628UActive Publication Date: 2025-07-25JIANGSU KOMAN SAITE SHOCK ABSORBER CO LTD
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Patent Information

Application Number
CN202422558455.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2025-07-25
Estimated Expiration
2034-10-23

AI Technical Summary

Technical Problem

Some models cannot achieve rebound adjustment function due to internal space limitations of the vibration absorber or body connection structure, resulting in the rebound adjustment function requirement being unable to meet.

Method used

The rotating shaft channel and threaded hole are provided at the head of the piston rod of the nitrogen shock absorber. Combined with the rotating shaft and the adjustment core, the rotation and movement of the adjustment core are realized through the fixed connection between the rebound adjustment wheel and the external hexagon adjustment wheel. Adjustment is achieved by using air pressure control, and steel balls and springs are set outside to improve the rotation gear sense.

Benefits of technology

Move the rebound adjustment structure outward to the piston rod head to save the shock absorber stroke, realize the rebound adjustment function of some models, and improve the adjustment convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a nitrogen shock absorber piston rod head rebound adjusting structure which comprises a piston rod, the head of the piston rod is provided with a rotating shaft channel and a threaded hole which are communicated with each other, a rotating shaft is arranged in the rotating shaft channel, and an adjusting core is in threaded connection in the threaded hole. The rotating shaft always abuts against the front end of the adjusting core under the action of air pressure, a springback adjusting wheel is arranged at the rear end of the adjusting core, the front end of the springback adjusting wheel is embedded into the adjusting core to control the adjusting core, an outer hexagonal adjusting wheel is arranged outside the springback adjusting wheel, and the springback adjusting wheel and the springback adjusting wheel are fixedly connected through a C-shaped check ring. According to the shock absorber, the springback adjusting structure is moved outwards to the head of the piston rod, the stroke of the shock absorber is greatly saved, the springback adjusting function of part of vehicle types is achieved, and convenience of springback adjusting is also improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, and particularly relates to a rebound adjustment structure for the head of a nitrogen shock absorber piston rod. Background Art

[0002] As the professionalism of nitrogen shock absorber customers is getting stronger and stronger, the demand for the rebound adjustment function is increasing day by day; however, for some vehicle models, due to the limitation of the internal space of the shock absorber or the limitation of the body connection structure itself, the function of rebound adjustment cannot be realized. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a rebound adjustment structure for the head of a nitrogen shock absorber piston rod aiming at the defects and deficiencies of the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a rebound adjustment structure for the head of a nitrogen shock absorber piston rod, including a piston rod, and the innovation lies in that: a rotating shaft channel and a threaded hole are respectively opened at the head of the piston rod, and the two are communicated with each other. A rotating shaft is arranged in the rotating shaft channel, and an adjusting core is threadedly connected in the threaded hole. The rotating shaft always abuts against the front end of the adjusting core under the action of air pressure. A rebound adjustment wheel is arranged at the rear end of the adjusting core, and the front end of the rebound adjustment wheel is embedded into the adjusting core to control the adjusting core. An external hexagon adjustment wheel is arranged outside the rebound adjustment wheel, and the two are fixedly connected by a C-shaped retaining ring.

[0005] Further, steel balls and springs are arranged inside the rebound adjustment wheel.

[0006] After adopting the above structure, the beneficial effect of the utility model is:

[0007] The utility model moves the rebound adjustment structure to the head of the piston rod, greatly saving the stroke of the shock absorber, realizing the rebound adjustment function of some vehicle models, and also improving the convenience of rebound adjustment. Description of the Drawings

[0008] Figure 1 It is a structural schematic diagram of the utility model.

[0009] Description of the reference numerals:

[0010] 1 piston rod, 2 rotating shaft, 3 adjusting core, 4 rebound adjustment wheel, 5 external hexagon adjustment wheel, 6 C-shaped retaining ring, 7 steel ball, 8 spring. Detailed Embodiment

[0011] The following further explains the utility model with reference to the drawings.

[0012] In order to make the objectives, technical solutions and advantages of the present utility model more clearly understood, the following further details the present utility model in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0013] Referring to Figure 1 , a nitrogen shock absorber piston rod head rebound adjustment structure includes a piston rod 1. A rotating shaft channel and a threaded hole are respectively opened at the head of the piston rod 1, and the two are in communication with each other. A rotating shaft 2 is arranged in the rotating shaft channel, and an adjustment core 3 is threadedly connected in the threaded hole. The rotating shaft 2 is always pressed against the front end of the adjustment core 3 under the action of air pressure. A rebound adjustment wheel 4 is arranged at the rear end of the adjustment core 3. The front end of the rebound adjustment wheel 4 is embedded in the adjustment core 3 to control the adjustment core 3. An external hexagonal adjustment wheel 5 is arranged outside the rebound adjustment wheel 4, and the two are fixedly connected by a C-shaped retaining ring 6. Specifically, by rotating the rebound adjustment wheel 4, the adjustment core 3 is driven to rotate, so that the adjustment core 3 can move back and forth in the threaded hole to adjust the rotating shaft 2, greatly saving the stroke of the shock absorber, realizing the rebound adjustment function of some vehicle models, and also improving the convenience of rebound adjustment.

[0014] In this embodiment, steel balls 7 and a spring 8 are arranged inside the rebound adjustment wheel 4, thereby improving the gear feeling when the rebound adjustment wheel 4 rotates.

[0015] The above is only used to illustrate the technical solution of the present utility model and not to limit it. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present utility model shall be covered within the scope of the claims of the present utility model as long as they do not depart from the spirit and scope of the technical solution of the present utility model.

Claims

1. A rebound adjustment structure for the head of a nitrogen shock absorber piston rod, comprising a piston rod, characterized in that: The head of the piston rod is respectively provided with a rotating shaft channel and a threaded hole, which are interconnected. A rotating shaft is arranged in the rotating shaft channel, and an adjusting core is threadedly connected in the threaded hole. The rotating shaft always abuts against the front end of the adjusting core under the action of air pressure. A rebound adjusting wheel is arranged at the rear end of the adjusting core. The front end of the rebound adjusting wheel is embedded into the adjusting core to control the adjusting core. An external hexagonal adjusting wheel is arranged outside the rebound adjusting wheel, and the two are fixedly connected by a C-shaped retaining ring.

2. The rebound adjustment structure of the piston rod head of a nitrogen shock absorber according to claim 1, characterized in that: Steel balls and springs are arranged inside the rebound adjusting wheel.