Plug assembly for shock absorber

Abstract

The plug assembly for the shock absorber comprises an elastic plug, a first pressing plate, a second pressing plate, a communicating column body, a tightening head and an exhaust pipe, the upper end and the lower end of the elastic plug abut against the first pressing plate and the second pressing plate respectively, and through holes are formed in the elastic plug, the first pressing plate and the second pressing plate. The communicating cylinder penetrates through the elastic plug, the first pressing plate and the second pressing plate to be fixedly connected, the tightening head is connected with the communicating cylinder in a clamped mode, and the distance between the first pressing plate and the second pressing plate is adjusted by clamping the tightening head and the communicating cylinder at different positions. Expansion of the elastic plug is adjusted by adjusting the distance between the first pressing plate and the second pressing plate; an exhaust channel is arranged in the communicating column body, and the exhaust pipe is communicated with the exhaust channel in a sealed mode. The cylinder barrel drying device is simple in structure and convenient to use, and the plug assembly can protect the inner wall of the cylinder barrel and cannot be ejected out of the cylinder barrel in the drying process.

Description

Technical Field

[0001] This utility model relates to the technical field of vibration dampers, and in particular to a plug assembly 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 have 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 before production. In existing technologies using this process, because the entire cylinder is submerged in a paint tank, 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. Therefore, before electrophoresis, a plug is usually used to seal the opening of the shock absorber cylinder. During the electrophoresis process of the shock absorber cylinder, a drying process is required (45 minutes in a drying oven at 180°C). The air inside the shock absorber cylinder, which is sealed, expands rapidly due to the high temperature. When the pressure difference between the inside and outside of the plug exceeds the friction force, the plug will be pushed out of the shock absorber cylinder and fall into the drying oven. This causes the plug to get stuck in the drying oven equipment chain, affecting the operation of the electrophoresis line. At the same time, when the plug is pushed out, the pretreatment tank liquid accumulated inside the shock absorber cylinder will erupt at high temperature and splash onto the surrounding and lower shock absorber cylinders, affecting the paint quality of other shock absorber cylinders. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a plug assembly that can protect the inner wall of the shock absorber cylinder and prevent it from being pushed out of the cylinder during the drying process.

[0004] To achieve the above objectives, this utility model discloses a plug assembly for a vibration damper, comprising an elastic plug, a first pressure plate, a second pressure plate, a connecting column, a tightening head, and an exhaust pipe. The upper and lower ends of the elastic plug abut against the first pressure plate and the second pressure plate, respectively. Each of the elastic plug, the first pressure plate, and the second pressure plate has a through hole. The connecting column passes through the elastic plug and is fixedly connected to the first and second pressure plates. The tightening head engages with the connecting column. The distance between the first and second pressure plates is adjusted by engaging the tightening head with the connecting column at different positions. The expansion of the elastic plug is adjusted by adjusting the distance between the first and second pressure plates. An exhaust channel is provided within the connecting column, and the exhaust pipe is sealed and connected to the exhaust channel.

[0005] Preferably, it also includes a connector, the two ends of which are respectively connected to an exhaust channel and an exhaust pipe.

[0006] Preferably, one end of the connector is fixed to the exhaust channel by welding, and the other end of the connector is inserted into the exhaust pipe. The connector is provided with a screw tightening cap and an external thread. The screw tightening cap and the external thread are screwed together to seal and fix the exhaust pipe.

[0007] The beneficial effects of this utility model are as follows: The plug assembly for a shock absorber provided by the above technical solution allows for the following process: The plug assembly is placed inside the cylinder opening. The distance between the first and second pressure plates is adjusted by tightening the head and the connecting column at different positions. This adjustment of the distance between the first and second pressure plates adjusts the expansion of the elastic plug. The expanded elastic plug fits tightly against the inner wall of the cylinder, thus protecting the inner wall of the shock absorber cylinder. During electrophoresis, the free end of the exhaust pipe is led out of the paint tank, preventing paint from entering the inner wall of the cylinder along the exhaust pipe and exhaust channel. During drying, the air trapped inside the shock absorber cylinder expands rapidly under high heat, and the expanded gas can be discharged outwards along the exhaust channel and exhaust pipe, preventing the plug from being pushed out of the cylinder.

[0008] 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

[0009] Figure 1 The diagram shows the structure of the vibration damper and the plug assembly for the vibration damper.

[0010] Figure 2 The image shown is a partial cross-sectional view of the vibration damper and the damper plug assembly. Detailed Implementation

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] refer to Figure 1 and Figure 2A plug assembly for a vibration damper includes an elastic plug 100, a first pressure plate 110, a second pressure plate 120, a connecting column 130, a tightening head 140, and an exhaust pipe 300. The upper and lower ends of the elastic plug 100 abut against the first pressure plate 110 and the second pressure plate 120, respectively. Each of the elastic plug 100, the first pressure plate 110, and the second pressure plate 120 has a through hole. The connecting column 130 passes through the elastic plug 100 and the first pressure plate 110 and... The second pressure plate 120 is fixedly connected, and the tightening head 140 is engaged with the connecting column 130. The distance between the first pressure plate 110 and the second pressure plate 120 is adjusted by engaging the tightening head 140 and the connecting column 130 at different positions. The expansion of the elastic plug 100 is adjusted by adjusting the distance between the first pressure plate 110 and the second pressure plate 120. The connecting column 130 is provided with an exhaust channel, and the exhaust pipe 300 is sealed and connected to the exhaust channel. In use, the plug assembly is placed into the opening of the cylinder 200. The distance between the first pressure plate 110 and the second pressure plate 120 is adjusted by tightening the head 140 and the connecting column 130 at different positions. The expansion of the elastic plug 100 is adjusted by adjusting the distance between the first pressure plate 110 and the second pressure plate 120. The expanded elastic plug 100 fits tightly against the inner wall of the cylinder 200, thereby protecting the inner wall of the shock absorber cylinder 200. During electrophoresis, the free end of the exhaust pipe 300 is led out of the paint tank, so the paint will not enter the inner wall of the cylinder 200 along the exhaust pipe 300 and the exhaust channel. During drying, the air inside the shock absorber cylinder 200 that is sealed expands rapidly under high heat. The expanded gas can be discharged outward along the exhaust channel and the exhaust pipe 300, so the plug assembly will not be pushed out of the cylinder 200. After use, loosen the connection between the tightening head 140 and the connecting column 130. The elastic plug 100 shrinks in size and returns to its original shape, reducing the friction between the elastic plug 100 and the inner wall of the cylinder 200, making it easier to remove the plug assembly. The outer peripheral wall of the upper part of the connecting column 130 is provided with external threads, and the tightening head 140 is provided with internal threads that engage with the external threads. The tightening head 140 and the connecting column 130 are engaged by the threads. By tightening or loosening the tightening head 140, the elastic plug 100 can be easily and quickly compressed or released. Its structure is simple and easy to use.

[0016] In one embodiment, the feature is that it further includes a connector 310, the two ends of which are respectively connected to an exhaust channel and an exhaust pipe 300. The connector 310 facilitates the connection between the exhaust pipe 300 and the exhaust channel.

[0017] In one embodiment, one end of the connector 310 is fixed to the exhaust channel by welding, and the other end of the connector 310 is inserted into the exhaust pipe 300. The connector 310 is provided with a screw-on tightening cap and an external thread. The screw-on tightening cap and the external thread engage to seal and fix the exhaust pipe 300. By inserting the other end of the connector 310 into the exhaust pipe 300 and sealing and fixing the exhaust pipe 300 by screwing the screw-on tightening cap into the external thread, the exhaust pipe 300 can be installed simply and quickly.

[0018] 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 plug assembly for a shock absorber, characterized by The utility model relates to a kind of elastic plug, first pressing plate, second pressing plate, communication column, tightening head and exhaust pipe, the upper and lower ends of the elastic plug respectively with first pressing plate, second pressing plate are abutted, and the elastic plug, first pressing plate and second pressing plate are all equipped with through-hole, the communication column is fixedly connected through elastic plug, first pressing plate and second pressing plate, the tightening head is connected with communication column, and the interval of first pressing plate and second pressing plate is adjusted by the clamping of the tightening head and communication column in different positions, and the expansion of elastic plug is adjusted by the interval adjustment between first pressing plate and second pressing plate;Communication column is equipped with exhaust passage, and exhaust pipe is sealingly communicated with exhaust passage.

2. A bung assembly for a shock absorber as claimed in claim 1, wherein, It further includes a connecting head, the two ends of the connecting head are respectively connected to the exhaust passage and the exhaust pipe.

3. A bung assembly for a shock absorber as claimed in claim 2, wherein One end of the connecting head is fixed with the exhaust passage by welding, the other end of the connecting head is inserted with the exhaust pipe, a screw tightening cap is provided on the connecting head, external threads are provided on the connecting head, and the screw tightening cap and the external threads sealingly fix the exhaust pipe by screwing.

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