Protective plug for shock absorber
By designing a protective plug structure, the problem of unevenness on the inner wall of the shock absorber cylinder caused by paint dispersion was solved, achieving protection of the inner wall of the cylinder and facilitating assembly, thus improving the user experience.
Patent Information
- Application Number
- CN202520620934.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-04-02
AI Technical Summary
In the prior art, during the electrophoresis or electroplating process, the paint in the shock absorber cylinder disperses onto the inner wall, resulting in an uneven inner wall that affects assembly and use.
Design a protective plug structure including an elastic sealing plug, an upper plate, a lower plate, a connecting column, and an adjusting head. The distance between the upper and lower plates is adjusted by the snap-fit of the adjusting head and the connecting column, so as to realize the expansion of the elastic sealing plug, so as to tightly fit the inner wall of the cylinder and protect the inner wall from damage.
It effectively protects the inner wall of the shock absorber cylinder, ensuring smooth assembly and easy removal after use. It has a simple structure and is easy to use.
Smart Images
Figure CN223825499U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of vibration dampers, and in particular to a protective plug for vibration dampers. Background Technology
[0002] Shock absorbers are used to suppress the oscillations caused by the rebound of springs after absorbing shocks and to absorb impacts from the road surface. They are widely used in automobiles to accelerate the attenuation of vibrations in the chassis and body, thereby improving ride comfort. When driving over uneven roads, although springs can filter road vibrations, the springs themselves still undergo reciprocating motion; shock absorbers are used to suppress this spring bounce. For aesthetic purposes and rust prevention, the outer peripheral wall of the shock absorber cylinder needs to be electrophoretically coated or electroplated before production. In existing technologies using these processes, because the entire cylinder is submerged in a paint bath, and one end of the shock absorber cylinder is open, paint can disperse onto the inner wall of the cylinder, causing paint to adhere to the inner surface. This results in an uneven inner wall, affecting assembly and use. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a protective plug for shock absorbers that can protect the inner wall of the shock absorber cylinder.
[0004] To achieve the above objectives, this utility model discloses a protective plug for a vibration damper, comprising an elastic sealing plug, an upper plate, a lower plate, a connecting post, and an adjusting head. The upper and lower ends of the elastic sealing plug abut against the upper plate and the lower plate, respectively. The connecting post is fixedly connected to the lower plate. Both the elastic sealing plug and the upper plate are provided with through holes. The connecting post passes through the elastic sealing plug and the upper plate sequentially from bottom to top. The adjusting head is engaged with the connecting post. The distance between the upper plate and the lower plate is adjusted by engaging the adjusting head and the connecting post at different positions. The expansion of the elastic sealing plug is adjusted by adjusting the distance between the upper plate and the lower plate.
[0005] Preferably, the elastic sealing plug is in the shape of an inverted frustum, the upper plate and the lower plate are both in the shape of circular plates, the elastic sealing plug, the upper plate and the lower plate are coaxially arranged, and the connecting post is located at the center of the lower plate.
[0006] Preferably, the connecting column, adjusting head, upper plate, and lower plate are all made of aluminum alloy.
[0007] Preferably, the resilient sealing plug is made of rubber or silicone.
[0008] Preferably, the outer peripheral wall of the upper part of the connecting column is provided with an external thread, and the adjusting head is provided with an internal thread that engages with the external thread. The adjusting head and the connecting column are engaged by the thread.
[0009] Preferably, the upper part of the adjusting head is a vertical annular structure.
[0010] The beneficial effects of this utility model are as follows: The protective plug for a shock absorber provided by the above technical solution allows for the following process: During use, the protective plug is inserted into the opening of the cylinder. The distance between the upper and lower plates is adjusted by interlocking the adjusting head and connecting column at different positions. This adjustment of the distance between the upper and lower plates adjusts the expansion of the elastic sealing plug. The expanded elastic sealing plug fits tightly against the inner wall of the cylinder, thus protecting the inner wall of the shock absorber cylinder. After use, the connection between the adjusting head and the connecting column is loosened, and the elastic sealing plug shrinks back to its original shape. This reduces the friction between the elastic sealing plug and the inner wall of the cylinder, facilitating the removal of the protective plug. This utility model has a simple structure, is easy to use, and can conveniently and quickly protect the inner wall of the shock absorber cylinder.
[0011] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description
[0012] Figure 1 The diagram shows the structure of the vibration damper and the protective plug for the vibration damper.
[0013] Figure 2 The image shown is a partial cross-sectional view of the vibration damper and the protective plug for the vibration damper. Detailed Implementation
[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0015] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0016] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0017] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0018] refer to Figure 1 and Figure 2 A protective plug for a vibration damper includes an elastic sealing plug 100, an upper plate 110, a lower plate 120, a connecting post 130, and an adjusting head 140. The upper and lower ends of the elastic sealing plug 100 abut against the upper plate 110 and the lower plate 120, respectively. The connecting post 130 is fixedly connected to the lower plate 120. Both the elastic sealing plug 100 and the upper plate 110 are provided with through holes. The connecting post 130 passes through the elastic sealing plug 100 and the upper plate 110 from bottom to top. The adjusting head 140 is engaged with the connecting post 130. The distance between the upper plate 110 and the lower plate 120 is adjusted by engaging the adjusting head 140 and the connecting post 130 at different positions. The expansion of the elastic sealing plug 100 is adjusted by adjusting the distance between the upper plate 110 and the lower plate 120. In use, the protective plug is inserted into the opening of the cylinder 200. The distance between the upper plate 110 and the lower plate 120 is adjusted by interlocking the adjusting head 140 and the connecting column 130 at different positions. Adjusting the distance between the upper plate 110 and the lower plate 120 adjusts the expansion of the elastic sealing plug 100. The expanded elastic sealing plug 100 fits tightly against the inner wall of the cylinder 200, thus protecting the inner wall of the shock absorber cylinder 200. After use, the connection between the adjusting head 140 and the connecting column 130 is loosened. The elastic sealing plug 100 shrinks back to its original shape, reducing the friction between the elastic sealing plug 100 and the inner wall of the cylinder 200, making it easy to remove the protective plug. This invention has a simple structure, is easy to use, and can conveniently and quickly protect the inner wall of the shock absorber cylinder 200.
[0019] In one embodiment, the resilient sealing plug 100 is shaped like an inverted frustum, and the upper plate 110 and lower plate 120 are both circular. The resilient sealing plug 100, upper plate 110, and lower plate 120 are coaxially arranged, and the connecting post 130 is located at the center of the lower plate 120. The radius of the upper plate 110 is smaller than the radius of the upper end face of the resilient sealing plug 100, and the radius of the lower plate 120 is smaller than the radius of the lower end face of the resilient sealing plug 100. The resilient sealing plug 100 is shaped like an inverted frustum, which facilitates the insertion of the protective plug into the opening of the cylinder 200. The elastic sealing plug 100, upper plate 110, and lower plate 120 are coaxially arranged. The connecting post 130 is located at the center of the lower plate 120. The distance between the upper plate 110 and the lower plate 120 is adjusted by the engagement of the adjusting head 140 with the connecting post 130 at different positions. The expansion of the elastic sealing plug 100 is adjusted by adjusting the distance between the upper plate 110 and the lower plate 120. The elastic sealing plug 100 can expand outward more evenly, thereby improving the friction between the elastic sealing plug 100 and the inner wall of the cylinder 200.
[0020] In one embodiment, the connecting post 130, adjusting head 140, upper plate 110, and lower plate 120 are all made of aluminum alloy. Because the connecting post 130, adjusting head 140, upper plate 110, and lower plate 120 are all made of aluminum alloy, they can be reused multiple times.
[0021] In one embodiment, the elastic sealing plug 100 is made of rubber or silicone. The elastic sealing plug 100, made of rubber or silicone, has a certain degree of elasticity and can deform under external force, thereby sealing the opening of the cylinder 200.
[0022] In one embodiment, the outer peripheral wall of the upper part of the connecting column 130 is provided with an external thread, and the adjusting head 140 is provided with an internal thread that engages with the external thread. The adjusting head 140 and the connecting column 130 are engaged by the thread. By tightening or loosening the adjusting head 140, the elastic sealing plug 100 can be easily and quickly compressed or loosened.
[0023] In one embodiment, the upper part of the adjusting head 140 is a vertical annular structure. This vertical annular structure facilitates tightening or loosening of the adjusting head 140, and also allows for easy removal of the protective plug after use.
[0024] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.
Claims
1. A protective plug for a vibration damper, characterized in that, The device includes an elastic sealing plug, an upper plate, a lower plate, a connecting post, and an adjusting head. The upper and lower ends of the elastic sealing plug abut against the upper and lower plates, respectively. The connecting post is fixedly connected to the lower plate. Both the elastic sealing plug and the upper plate have through holes. The connecting post passes through the elastic sealing plug and the upper plate sequentially from bottom to top. The adjusting head engages with the connecting post. The distance between the upper and lower plates is adjusted by engaging the adjusting head with the connecting post at different positions. The expansion of the elastic sealing plug is adjusted by adjusting the distance between the upper and lower plates.
2. The protective plug for a vibration damper as described in claim 1, characterized in that, The elastic sealing plug is in the shape of an inverted frustum, and the upper plate and lower plate are both in the shape of circular plates. The elastic sealing plug, the upper plate and the lower plate are coaxially arranged, and the connecting post is located at the center of the lower plate.
3. A protective plug for a vibration damper as described in claim 1, characterized in that, The connecting column, adjusting head, upper plate, and lower plate are all made of aluminum alloy.
4. A protective plug for a vibration damper as described in claim 1, characterized in that, The elastic sealing plug is made of rubber or silicone.
5. A protective plug for a vibration damper as described in claim 1, characterized in that, The outer peripheral wall of the upper part of the connecting column is provided with an external thread, and the adjusting head is provided with an internal thread that engages with the external thread. The adjusting head and the connecting column are engaged by the thread.
6. A protective plug for a vibration damper as described in claim 5, characterized in that, The upper part of the adjustment head is a vertical ring-shaped structure.