Novel damping adjusting mechanism for nitrogen cylinder shock absorber
By designing a new damping adjustment mechanism in the nitrogen cylinder shock absorber, the small valve core and large valve core are adjusted to control the over-oil amount and pre-pressure, the problem of small intervals and insufficient change in force values in the traditional adjustment mechanism is solved, and the damping force changes in a larger interval and more obvious change in force values are achieved, improving the user experience and oil flowability.
Patent Information
- Application Number
- CN202420101005.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-01-16
AI Technical Summary
The adjustment range of the adjustment mechanism in traditional nitrogen cylinder shock absorbers is small, and the force value changes are not obvious.
A new damping adjustment mechanism for nitrogen cylinder shock absorber is designed, including a housing, a large valve core, a small valve core seat and a communication bolt. By adjusting the small valve core and a large valve core, the amount of oil over the compression stroke and the prepressure of the upper seat spring are controlled, the damping force change range is expanded and the obvious degree of change in force value is increased.
The damping force change range is achieved, the force value changes are more obvious, the user experience is good, and the oil flowability is better when restoring the compression stroke. The spring gasket design provides better recovery compensation.
Smart Images
Figure CN222615893U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shock absorbers, in particular to a novel damping adjustment mechanism for a nitrogen bottle shock absorber. Background Art
[0002] The adjustment mechanism in the traditional nitrogen bottle shock absorber has a small adjustment range and the force value change is not obvious. Summary of the invention
[0003] In order to solve the technical problems that the adjustment range of the adjustment mechanism in the existing nitrogen bottle shock absorber is small and the force value change is not obvious, the utility model provides a novel damping adjustment mechanism for the nitrogen bottle shock absorber.
[0004] The technical solution of the utility model is as follows:
[0005] A novel damping adjustment mechanism for a nitrogen bottle shock absorber comprises a shell, a large valve core connected to the shell is arranged below the shell, a first flow channel is formed between the large valve core and the shell, a connecting bolt is arranged inside the large valve core, the lower part of the connecting bolt is connected to the large valve core, a small valve core upper seat is arranged above the connecting bolt, the lower part of the small valve core upper seat is connected to the connecting bolt, the upper part of the small valve core upper seat is connected to the shell, a small valve core is arranged inside the small valve core upper seat, and a second flow channel is formed between the small valve core and the connecting bolt.
[0006] A plurality of valve plates are arranged between the large valve core and the shell, and inlet and outlet flow channels are formed between the plurality of valve plates.
[0007] The lower end of the small valve core is conical, a hollow flow channel is formed in the middle of the connecting bolt, and a second flow channel is formed between the lower end of the small valve core and the hollow flow channel in the middle of the connecting bolt.
[0008] An upper seat spring is arranged between the small valve core upper seat and the large valve core.
[0009] The small valve core is movably connected to the small valve core upper seat through a threaded structure, and a sealing ring is arranged between the small valve core and the small valve core upper seat.
[0010] An adjusting spring and a steel ball are arranged between the small valve core and the small valve core upper seat.
[0011] The small valve core upper seat is fixedly connected to the shell, and a sealing ring is arranged between the small valve core upper seat and the shell.
[0012] The connecting bolt is fixedly connected to the large valve core and the small valve core upper seat, and a sealing ring is arranged between the connecting bolt and the small valve core upper seat.
[0013] The shell is installed in the shock absorber shell, and a sealing ring is arranged between the shell and the large valve core and the shock absorber shell.
[0014] The technical solution of the utility model is novel in structure and ingenious in design. Two adjusting devices are designed to adjust the small valve core to control the amount of oil flowing during the compression stroke, and to adjust the large valve core to control the preload of the upper seat spring. The tighter the upper seat spring is squeezed, the more difficult it is to open the valve. The large and small valve cores are adjusted in coordination to make the damping force change range larger, the force value change more obvious, the user experience is good, and the oil fluidity is better when the compression stroke is restored. The spring gasket design is adopted to provide better compensation during restoration. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model;
[0016] Figure 2 It is a schematic diagram of the use state of the utility model. Implementation
[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention. Example
[0018] like Figure 1 , 2The novel damping adjustment mechanism for the nitrogen cylinder shock absorber shown comprises a shell 1, a large valve core 2 connected thereto is provided at the bottom of the shell 1, the large valve core 2 is fixedly connected to the shell 1 through a threaded structure, a first flow channel is formed between the large valve core 2 and the shell 1, a connecting bolt 3 is provided on the inner side of the large valve core 2, the lower part of the connecting bolt 3 is connected to the large valve core 2, a small valve core upper seat 4 is provided above the connecting bolt 3, the lower part of the small valve core upper seat 4 is connected to the connecting bolt 3, the connecting bolt 3 is fixedly connected to the large valve core 2 and the small valve core upper seat 4, a sealing ring is provided between the connecting bolt 3 and the small valve core upper seat 4 to avoid oil leakage and improve the sealing performance, the upper part of the small valve core upper seat 4 is connected to the shell 1, the small valve core upper seat 4 is fixedly connected to the shell 1, a sealing ring is provided between the small valve core upper seat 4 and the shell 1 to avoid oil leakage and improve the sealing performance, a small valve core 5 is provided in the small valve core upper seat 4, the small valve core 5 is movably connected to the small valve core upper seat 4 through a threaded structure, a sealing ring is provided between the small valve core 5 and the small valve core upper seat 4 The second flow channel is formed between the small valve core 5 and the connecting bolt 3. The lower end of the small valve core 5 is conical, and a hollow flow channel is formed in the middle of the connecting bolt 3. A second flow channel is formed between the lower end of the small valve core 5 and the hollow flow channel in the middle of the connecting bolt 3. An adjusting spring 8 and a steel ball 9 are arranged between the small valve core 5 and the small valve core upper seat 4. When the small valve core 5 is rotated for damping adjustment, the steel ball 9 contacts the inner wall of the small valve core upper seat 4 to produce a staggered feeling, which optimizes the use experience. The large valve core 2 and A plurality of valve plates 6 are arranged between the housings 1, and inlet and outlet channels are formed between the plurality of valve plates 6. The valve plates 6 on the inner side of the large valve core 2 are compression oil channels, and the valve plates 6 on the outer side are recovery channels. An upper seat spring 7 is arranged between the upper seat 4 of the small valve core and the large valve core 2, and a spring limiting frame 11 is arranged above the valve plates 6. The lower end of the upper seat spring 7 contacts and limits the spring limiting frame 11, and the upper seat spring 7 provides a downward pre-pressure to the large valve core 2, which is convenient for limiting the valve plates 6 and the large valve core 2, and will not loosen after installation. The housing 1 and the large valve core 2 are installed in the shock absorber housing 10, and a sealing ring is arranged between the housing 1 and the large valve core 2 and the shock absorber housing 10 to avoid oil leakage and improve the sealing performance.
[0019] When in use, the small valve core 5 is adjusted to control the amount of oil flowing during the compression stroke, and the large valve core 2 is adjusted to control the pre-pressure of the upper seat spring 7. The tighter the upper seat spring 7 is squeezed, the harder it is for the valve plate 6 to open the valve. When the shock absorber is compressed, the oil enters the nitrogen bottle from both the first and second flow channels, and returns to the working cylinder from the recovery flow channel outside the valve plate 6 during recovery. The flow direction of each flow channel is marked in the attached figure of the specification, which can be used as a reference.
[0020] The adjustment mechanism in the traditional nitrogen bottle shock absorber has a small adjustment range and the force value change is not obvious. The utility model is designed with two adjustment devices. The small valve core 5 is adjusted to control the amount of oil flowing during the compression stroke, and the large valve core 2 is adjusted to control the preload of the upper seat spring 7. The tighter the upper seat spring 7 is squeezed, the more difficult it is for the valve plate 6 to open the valve. The large and small valve cores are adjusted together to make the damping force change range larger, the force value change more obvious, the user experience is good, and the oil flowability is better when the compression stroke is restored. The spring gasket design allows better compensation during recovery.
[0021] It should be understood that the above description is only a preferred embodiment of the present invention and is not sufficient to limit the technical solution of the present invention. For ordinary technicians in this field, within the spirit and principles of the present invention, additions, substitutions, changes or improvements can be made according to the above description, and all these additions, substitutions, changes or improved technical solutions should fall within the scope of protection of the claims attached to the present invention.
Claims
1. A novel damping adjustment mechanism for a nitrogen bottle shock absorber, comprising a housing (1), characterized in that: A large valve core (2) connected to the housing (1) is provided below the housing (1), a first flow channel is formed between the large valve core (2) and the housing (1), a connecting bolt (3) is provided inside the large valve core (2), the lower part of the connecting bolt (3) is connected to the large valve core (2), a small valve core upper seat (4) is provided above the connecting bolt (3), the lower part of the small valve core upper seat (4) is connected to the connecting bolt (3), the upper part of the small valve core upper seat (4) is connected to the housing (1), a small valve core (5) is provided inside the small valve core upper seat (4), and a second flow channel is formed between the small valve core (5) and the connecting bolt (3).
2. The novel damping adjustment mechanism for the nitrogen bottle shock absorber according to claim 1 is characterized in that: A plurality of valve plates (6) are provided between the large valve core (2) and the housing (1), and inlet and outlet flow channels are formed between the plurality of valve plates (6).
3. The novel damping adjustment mechanism for the nitrogen bottle shock absorber according to claim 1 is characterized in that: The lower end of the small valve core (5) is conical, a hollow flow channel is formed in the middle of the connecting bolt (3), and a second flow channel is formed between the lower end of the small valve core (5) and the hollow flow channel in the middle of the connecting bolt (3).
4. The novel damping adjustment mechanism for the nitrogen bottle shock absorber according to claim 1 is characterized in that: An upper seat spring (7) is provided between the small valve core upper seat (4) and the large valve core (2).
5. The novel damping adjustment mechanism for the nitrogen bottle shock absorber according to claim 1 is characterized in that: The small valve core (5) is movably connected to the small valve core upper seat (4) via a threaded structure, and a sealing ring is provided between the small valve core (5) and the small valve core upper seat (4).
6. The novel damping adjustment mechanism for the nitrogen bottle shock absorber according to claim 1 is characterized in that: An adjusting spring (8) and a steel ball (9) are provided between the small valve core (5) and the small valve core upper seat (4).
7. The novel damping adjustment mechanism for the nitrogen bottle shock absorber according to claim 1 is characterized in that: The small valve core upper seat (4) is fixedly connected to the housing (1), and a sealing ring is provided between the small valve core upper seat (4) and the housing (1).
8. The novel damping adjustment mechanism for the nitrogen bottle shock absorber according to claim 1 is characterized in that: The connecting bolt (3) is fixedly connected to the large valve core (2) and the small valve core upper seat (4), and a sealing ring is provided between the connecting bolt (3) and the small valve core upper seat (4).
9. The novel damping adjustment mechanism for the nitrogen bottle shock absorber according to claim 1 is characterized in that: The housing (1) is installed in a shock absorber housing (10), and a sealing ring is provided between the housing (1) and the large valve core (2) and the shock absorber housing (10).