Adjustable mechanical shock absorber

Abstract

The utility model provides an adjustable mechanical shock absorber which comprises a main cylinder body and a shock absorption rod, a piston is installed on the outer side of the bottom end of the shock absorption rod, the outer wall of the piston is in sliding connection with the inner wall of the main cylinder body, a supporting seat is connected to the inner side of the bottom end of the main cylinder body, a cavity is formed in the bottom end of the shock absorption rod, and a spring is installed between the top end of the supporting seat and the top end in the cavity. The outer side of the main barrel is provided with external threads and connected with a fixing ring through the external threads, and fixing shafts are symmetrically installed on the outer side of the fixing ring. The external thread is arranged on the outer side of the main cylinder body, and the external thread is spirally connected with the fixing ring with the fixing shaft, so that the main cylinder body can be supported by connecting the fixing shaft with a mounting carrier during use, and the mounting position of the main cylinder body can be adjusted up and down in a manner of rotating the main cylinder body during use; therefore, the supporting distance is adjusted, the height of a chassis of the vehicle body can be adjusted, and high use convenience is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shock absorbers, and more specifically, relates to an adjustable mechanical shock absorber. Background Art

[0002] Most current shock absorbers are hydraulic. Their main structure consists of a working cylinder, piston, guide device, and oil reservoir. These components are arranged coaxially. Their principle is that shock and vibration from the road are transmitted through the cylinder body, causing the piston to reciprocate relative to the working cylinder. A return valve and a compression valve installed on the piston control the flow of shock absorber oil in the working cylinder to achieve damping and vibration reduction.

[0003] Hydraulic shock absorbers offer excellent shock absorption and reasonable cost, making them widely used in existing technologies. However, existing hydraulic shock absorbers typically require connection between their upper and lower ends and a mounting support. This connection makes it difficult to adjust the shock absorber's support distance. For example, when installed on a vehicle, it is difficult to adjust the chassis height, resulting in certain limitations in use. Therefore, research and improvements are being conducted to address the existing structure and shortcomings, aiming to provide an adjustable mechanical shock absorber with greater practical value. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides an adjustable mechanical shock absorber, which is achieved by the following specific technical means:

[0005] An adjustable mechanical shock absorber includes a main cylinder and a shock absorber rod, a piston is installed on the outside of the bottom end of the shock absorber rod, the outer wall of the piston is slidably connected to the inner wall of the main cylinder, the inner side of the bottom end of the main cylinder is connected to a support seat, a cavity is provided at the bottom end of the shock absorber rod, and a spring is installed between the top of the support seat and the top of the cavity; the outer side of the main cylinder is provided with an external thread, and is connected to a fixing ring through the external thread, and a fixed shaft is symmetrically installed on the outer side of the fixing ring.

[0006] Furthermore, a buffer colloid is installed between the top of the support seat and the top of the cavity, and the buffer colloid is coaxially installed inside the spring; the buffer colloid is an internal hollow structure.

[0007] Furthermore, an external thread is provided on the outer side of the main cylinder; the upper and lower ends of the main cylinder are respectively threadedly connected to the limit ring and the base, and the connection between the main cylinder, the limit ring and the base is respectively pressed and installed with a sealing ring three and a sealing ring four.

[0008] Furthermore, the top opening diameter of the limiting ring matches the outer diameter of the shock absorber rod, and the inner wall of the top opening of the limiting ring is provided with three groups of mounting grooves from top to bottom, and the three groups of mounting grooves are respectively installed with a dust ring, an air seal and a linear bearing that fits the outer wall of the shock absorber rod.

[0009] Furthermore, two groups of annular grooves are provided on the outside of the piston, and two linear bearings and a sealing ring are respectively installed in the two groups of annular grooves, which are in contact with the inner wall of the main cylinder; the piston is connected to the bottom end of the shock absorber rod through a thread, and a sealing ring 2 is tightly installed between the piston and the shock absorber rod.

[0010] Furthermore, a buffer pad is installed on the top end of the piston, and the buffer pad is sleeved on the outside of the shock absorber rod.

[0011] Furthermore, an internal thread is provided inside the bottom end of the main cylinder, and an external thread matching and connected with the internal thread is provided on the outer side of the support seat.

[0012] Furthermore, the top end of the shock absorber rod is provided with an air intake passage communicating with the cavity thereof, and an air nozzle is sealed and installed at the opening of the air intake passage.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The utility model provides an external thread on the outside of the main cylinder, and uses the external thread to spirally connect a fixing ring with a fixing shaft. When in use, the fixing shaft is connected to the mounting carrier to support the main cylinder. When in use, the main cylinder can be rotated to adjust the installation position of the main cylinder up and down, thereby adjusting the support distance and further adjusting the chassis height of the vehicle body, which is highly convenient to use.

[0015] 2. The present invention replaces the hydraulic buffer assembly in the existing hydraulic shock absorber by installing a buffer colloid inside the spring. This provides a shock-absorbing and buffering effect on the downward movement of the shock absorber rod during use. It does not cause oil leakage, which is a common phenomenon with hydraulic buffer assemblies. It also has a simple structure and low manufacturing cost. Furthermore, in actual production, the length and material of the buffer colloid can be quickly selected and replaced according to the needs of use, which provides high flexibility.

[0016] 3. The utility model can realize rapid adjustment of the air pressure inside the shock absorber rod and the main cylinder through the setting of the air nozzle and the air inlet channel, so as to quickly adjust the overall soft and hard effects of the shock absorber during use, so as to meet the needs of different users and have high applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic cross-sectional view of the present utility model.

[0018] Figure 2 yes Figure 1 Enlarged schematic diagram of part A in the middle.

[0019] Figure 3 It is a schematic diagram of the disassembly structure of the utility model.

[0020] Figure 4 It is a schematic diagram of the general assembly of the utility model.

[0021] Figure 5 It is a schematic diagram of the installation of the utility model.

[0022] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0023] 1. Main cylinder; 2. Shock absorber rod; 3. Limiting ring; 4. Piston; 5. Base; 6. Support seat; 7. Cushioning colloid; 8. Spring; 9. Air nozzle; 10. Fixing ring; 11. Fixed shaft; 12. Dust ring; 13. Air seal; 14. Linear bearing 1; 15. Linear bearing 2; 16. Seal ring 1; 17. Seal ring 2; 18. Seal ring 3; 19. Seal ring 4. DETAILED DESCRIPTION

[0024] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] Example:

[0028] As attached Figure 1 To the attached Figure 5 As shown:

[0029] The utility model provides an adjustable mechanical shock absorber, including a main cylinder 1 and a shock absorber rod 2, a piston 4 is installed on the outside of the bottom end of the shock absorber rod 2, the outer wall of the piston 4 is slidably connected to the inner wall of the main cylinder 1, the inner side of the bottom end of the main cylinder 1 is connected to a support seat 6, the bottom end of the shock absorber rod 2 is provided with a cavity, and a spring 8 is installed between the top of the support seat 6 and the top of the cavity; the outer side of the main cylinder 1 is provided with an external thread, and a fixing ring 10 is connected to the outer side of the fixing ring 10 through the external thread, and a fixing shaft 11 is symmetrically installed on the outer side of the fixing ring 10. Through the setting of the fixing ring 10 and the fixing shafts 11 on both sides thereof, it is convenient to fix the installation between the fixing shaft 11 and the installation carrier during installation, so as to achieve the following use. By rotating the main cylinder 1, the height position of the main cylinder 1 can be adjusted to adjust the overall support height, thereby adjusting the chassis height of the vehicle body, and it has high convenience in use.

[0030] Among them, a buffer colloid 7 is installed between the top of the support seat 6 and the top of the cavity. The buffer colloid 7 is coaxially installed inside the spring 8. By installing the buffer colloid 7 inside the spring 8 to replace the hydraulic buffer component inside the existing hydraulic shock absorber, it can provide a shock-absorbing and buffering effect on the downward movement of the shock absorber rod 2 when in use. During use, there will be no oil leakage similar to the hydraulic buffer component, and the structure is simple and the manufacturing cost is low. The buffer colloid 7 is an internal hollow structure, so that it can facilitate rapid deformation and recovery when in use.

[0031] Among them, the outer side of the main cylinder body 1 is provided with an external thread; the upper and lower ends of the main cylinder body 1 are respectively threadedly connected with the limit ring 3 and the base 5, and the connection between the main cylinder body 1 and the limit ring 3 and the base 5 is respectively pressed and installed with a sealing ring three 18 and a sealing ring four 19 to ensure good sealing between the limit ring 3 and the base 5 and the main cylinder body 1 to prevent air leakage during use.

[0032] Among them, the top opening diameter of the limiting ring 3 matches the outer diameter of the shock absorber rod 2, and the inner wall of the top opening of the limiting ring 3 is provided with three groups of installation grooves from top to bottom, and the three groups of installation grooves are respectively installed with a dust ring 12, an air seal 13 and a linear bearing 14 that fits the outer wall of the shock absorber rod 2; the dust ring 12 can effectively isolate external rainwater, dust and other debris during use to prevent them from entering, so as to ensure the overall stability of use; the air seal 13 can effectively seal the limiting ring 3 and the shock absorber rod 2 to prevent air leakage; the setting of the linear bearing 14 can effectively improve the stability of the shock absorber rod 2 running inside the limiting ring 3, so as to facilitate its efficient telescopic movement.

[0033] Among them, two groups of annular grooves are provided on the outside of the piston 4, and the two groups of annular grooves are respectively installed with a linear bearing 2 15 and a sealing ring 16 that fits the inner wall of the main cylinder body 1. Through the setting of the linear bearing 2 15, it can be ensured that the piston 4 runs smoothly on the inner wall of the main cylinder body 1 and is not prone to deviation. At the same time, the installation of the sealing ring 16 can effectively ensure the sealing between the piston 4 and the main cylinder body 1 to prevent air leakage during use. At the same time, it can ensure that there is a buffer air storage cavity with stable air pressure between the piston 4 and the limit ring 3 to achieve buffering when the piston 4 is running; the piston 4 is connected to the bottom end of the shock absorber rod 2 through a thread, and a sealing ring 2 17 is tightly installed between the piston 4 and the shock absorber rod 2 to improve the connection sealing between the piston 4 and the shock absorber rod 2 to prevent air leakage.

[0034] Among them, a buffer pad is installed on the top of the piston 4, and the buffer pad is mounted on the outside of the shock absorber rod 2 to prevent the piston 4 from colliding with the limit ring 3 when it rebounds, so as to ensure that the whole has good quietness during operation and at the same time improve the service life.

[0035] Among them, an internal thread is provided inside the bottom end of the main cylinder 1, and an external thread matching the internal thread is provided on the outer side of the support seat 6, so as to realize rapid installation of the support seat 6 and facilitate rapid adjustment of its height position.

[0036] Among them, the top end of the shock absorber rod 2 is provided with an air intake channel connected to its cavity, and the opening of the air intake channel is sealed and installed with an air nozzle 9, so as to facilitate the rapid adjustment of the air pressure inside the shock absorber rod 2 and the main cylinder 1, so as to facilitate the rapid adjustment of the overall soft and hard effects of the shock absorber during use, so as to meet the usage needs of different users, and has high applicability.

[0037] The working principle of this embodiment is as follows: by arranging an external thread on the outside of the main cylinder 1 and using the external thread to spirally connect the fixing ring 10 with the fixed shaft 11, it can be achieved that when in use, the fixed shaft 11 is connected to the installation carrier to support the main cylinder 1, and when in use, the installation position of the main cylinder 1 can be adjusted up and down by rotating the main cylinder 1, so as to adjust the support distance, and then the chassis height of the vehicle body can be adjusted, which has high convenience in use; by installing the buffer colloid 7 inside the spring 8 to replace the hydraulic buffer component inside the existing hydraulic shock absorber, it can be achieved that when in use, a shock-absorbing and buffering effect is provided for the downward movement of the shock absorber rod 2, and there will be no oil leakage and other phenomena similar to those existing in the hydraulic buffer component during use, and the structure is simple and the manufacturing cost is low. At the same time, in actual production, the length and material of the buffer colloid 7 can be quickly selected and replaced according to the needs of use, which has high flexibility.

[0038] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. An adjustable mechanical shock absorber, comprising a main cylinder (1) and a shock absorber rod (2), wherein a piston (4) is mounted on the outer side of the bottom end of the shock absorber rod (2), and the outer wall of the piston (4) is slidably connected to the inner wall of the main cylinder (1), characterized in that: The inner side of the bottom end of the main cylinder (1) is connected to a support seat (6), the bottom end of the shock-absorbing rod (2) is provided with a cavity, and a spring (8) is installed between the top end of the support seat (6) and the top end of the cavity; the outer side of the main cylinder (1) is provided with an external thread, and is connected to a fixing ring (10) through the external thread, and a fixing shaft (11) is symmetrically installed on the outer side of the fixing ring (10).

2. The adjustable mechanical shock absorber according to claim 1, characterized in that: A buffer colloid (7) is installed between the top of the support seat (6) and the top of the cavity, and the buffer colloid (7) is coaxially installed inside the spring (8); the buffer colloid (7) has an internal hollow structure.

3. The adjustable mechanical shock absorber according to claim 1, characterized in that: The upper and lower ends of the main cylinder (1) are respectively threadedly connected to the limit ring (3) and the base (5), and the connection between the main cylinder (1), the limit ring (3) and the base (5) is respectively pressed and installed with a sealing ring three (18) and a sealing ring four (19).

4. The adjustable mechanical shock absorber according to claim 3, characterized in that: The diameter of the top opening of the limiting ring (3) matches the outer diameter of the shock-absorbing rod (2), and the inner wall of the top opening of the limiting ring (3) is provided with three groups of mounting grooves from top to bottom, and the insides of the three groups of mounting grooves are respectively provided with a dust ring (12) that fits the outer wall of the shock-absorbing rod (2), an air seal (13) and a linear bearing (14).

5. The adjustable mechanical shock absorber according to claim 1, wherein: Two groups of annular grooves are provided on the outer side of the piston (4), and a second linear bearing (15) and a first sealing ring (16) are respectively installed in the two groups of annular grooves, which are in contact with the inner wall of the main cylinder (1); the piston (4) is connected to the bottom end of the shock-absorbing rod (2) through a thread, and a second sealing ring (17) is tightly installed between the piston (4) and the shock-absorbing rod (2).

6. The adjustable mechanical shock absorber according to claim 5, characterized in that: A buffer pad is installed on the top end of the piston (4), and the buffer pad is sleeved on the outside of the shock absorbing rod (2).

7. The adjustable mechanical shock absorber according to claim 1, wherein: An internal thread is provided inside the bottom end of the main cylinder (1), and an external thread matching and connected to the internal thread is provided on the outside of the support seat (6).

8. The adjustable mechanical shock absorber according to claim 3, wherein: The top end of the shock-absorbing rod (2) is provided with an air intake passage communicating with the cavity thereof, and an air nozzle (9) is sealed and installed at the opening of the air intake passage.

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