Waterproof and dustproof cover of shock absorber

Abstract

The invention belongs to the technical field of shock absorbers, and particularly relates to a waterproof and dustproof cover of a shock absorber, the dustproof cover comprises a cover body with an opening at one end, the cover body is provided with a cylindrical clamping part and a cylindrical reinforcing protection part, and the clamping part is connected to the center in the cover body and is used for being clamped in an upper supporting seat of the shock absorber; the reinforcing protection part is arranged outside the clamping part in a clearance sleeving mode, and one end of the reinforcing protection part is connected to the inner wall of the cover body in a sealed mode; when the cover body is connected with the upper supporting seat, the end portion of the reinforcing protection portion abuts against the end face of the upper supporting seat. The shock absorber is used for solving the technical problems that a dust cover and an upper supporting seat of an existing shock absorber are in non-sealed connection, liquid cannot be prevented from entering the shock absorber, and the protection performance is poor.

Description

Technical Field

[0001] The present invention belongs to the technical field of shock absorbers, and particularly relates to a waterproof and dustproof cover for a shock absorber. Background Art

[0002] The dustproof cover of the shock absorber is widely used in the double-tube hydraulic shock absorber. During the operation of the shock absorber, the dustproof cover is installed at the top of the upper support seat of the shock absorber, playing a major role in preventing large particles of dust from entering the upper support seat and avoiding abnormal noise in the upper support seat.

[0003] However, the currently used dustproof cover has a relatively simple structure, only including a cover body for dust prevention and a clamping portion for connecting to the upper support seat. Covered on the upper support seat through the cover body, although it can achieve a certain dustproof effect, when there is splashing liquid from bottom to top, the liquid easily enters the cover body and then can directly enter the upper support seat from the connection between the clamping portion and the upper support seat, resulting in abnormal noise of the shock absorber assembly. Therefore, the current dustproof cover has a poor protection effect and cannot meet higher usage requirements. Summary of the Invention

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a waterproof and dustproof cover for a shock absorber, which is used to solve the technical problem that the current dustproof cover of the shock absorber is not hermetically connected to the upper support seat, cannot protect against the entry of liquid, and results in poor protection performance.

[0005] To achieve the above purpose, the technical solution of the present invention is: A waterproof and dustproof cover for a shock absorber, the dustproof cover includes a cover body with an open end, the cover body is provided with a cylindrical clamping portion and a cylindrical enhanced protection portion, the clamping portion is connected to the center of the cover body and is used for clamping in the upper support seat of the shock absorber; the enhanced protection portion is sleeved outside the clamping portion with a gap, and one end is hermetically connected to the inner wall of the cover body; when the cover body is connected to the upper support seat, the end of the enhanced protection portion abuts against the end face of the upper support seat.

[0006] Preferably, the overhanging end of the enhanced protection portion is not higher than the open end of the cover body.

[0007] Preferably, the open end of the cover body covers the upper support seat.

[0008] Preferably, the cover body is integrally arc-shaped to ensure that the liquid flows down smoothly from the arc-shaped cover body.

[0009] Preferably, a circular groove is provided on the clamping portion to ensure the connection reliability with the upper support seat.

[0010] Preferably, a plurality of slits are provided on the clamping portion along the circumferential direction to ensure that the clamping portion has a certain amount of deformation.

[0011] The beneficial effects of adopting the technical solution of the present invention are as follows: In the present invention, a cylindrical strengthening and protecting part is arranged outside the clamping part inside the cover body. When the clamping part is connected to the upper support seat, the overhanging end of the strengthening and protecting part abuts against the end face of the upper support seat, so that a protecting chamber is formed among the outer wall of the strengthening and protecting part, the cover body and the end face of the upper support seat in the outer space of the clamping part. When there is liquid splashing from bottom to top, it first enters the protecting chamber, and the protecting chamber forms a second waterproof buffering area, effectively preventing the splashing liquid from directly entering the inner layer chamber, thus achieving an effective dust and waterproof effect. Description of the Drawings

[0012] Figure 1 It is a schematic view of an embodiment of a shock absorber waterproof and dustproof cover; Figure 2 It is a schematic view of the use state of an embodiment of a shock absorber waterproof and dustproof cover; Figure 3 It is a schematic view of the use state of a prior art dustproof cover.

[0013] Among them, Figures 1 - 3 in, 1 - cover body, 2 - clamping part, 21 - clamping groove, 22 - slit, 3 - strengthening and protecting part, 4 - protecting chamber, 5 - upper support seat, 51 - step part. Detailed Embodiment

[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments, and do not limit the scope of the present invention.

[0015] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0016] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0017] The specific embodiments are as follows: As Figures 1 - 3 shown, a waterproof and dustproof cover for a shock absorber, which includes a cover body 1, a clamping part 2 and a strengthening protection part 3 are arranged in the cover body 1. The clamping part 2 adopts a cylindrical structure and is connected to the center in the cover body 1. The strengthening protection part 3 adopts a cylindrical structure, is sleeved outside the clamping part 2 with a gap, and its upper end is hermetically connected to the inner wall of the cover body 1. In this embodiment, the cover body 1, the clamping part 2 and the strengthening protection part 3 are integrally arranged.

[0018] It should be noted that a upper support seat 5 is arranged at the upper end of the shock absorber, a step part 51 is arranged at the upper end of the upper support seat 5, the piston rod of the shock absorber passes through the central hole of the upper support seat 5, and a connecting block is arranged at the upper end of the central hole for connecting the dustproof cover. When the dustproof cover is connected to the upper support seat 5, the clamping part 2 extends into and is clamped in the central hole of the connecting block, and the lower end of the strengthening protection part 3 abuts against the end face of the step part 51, so as to enclose a protection cavity 4 between the outer wall of the strengthening protection part 3, the cover body 1 and the step part 51. More specifically, a sealing ring is added at the connection between the strengthening protection part 3 and the step part 51, or sealing glue is applied, etc., to ensure the sealing performance of the connection between the strengthening protection part 3 and the step part 51 and enhance the resistance to liquid.

[0019] Furthermore, the downward overhanging end of the strengthening protection part 3 is not higher than the opening end of the cover body 1, and the opening end of the cover body 1 is larger than the step part 51, so that when the strengthening protection part 3 abuts against the end face of the step part 51, the lower end of the cover body 1 covers the upper support seat 5 and is lower than the upper end face of the step part 51, ensuring the protection degree of the connection between the clamping part 2 and the upper support seat 5 and improving the protection effect.

[0020] In this embodiment, the outer edge of the upper end of the step part 51 is set as an inclined surface, and the inner wall of the cover body 1 is in contact and cooperation with the inclined surface, improving the tightness between the cover body 1 and the step part 51 and enhancing the protection effect.

[0021] Furthermore, the cover body 1 is integrally arc-shaped, ensuring that the liquid flows down smoothly from the arc-shaped cover body. Combined with the cover body 1 covering the step part 51, the liquid flows down along the cover body 1 and along the upper support seat 5, reducing the splashing of the liquid.

[0022] Furthermore, to ensure the reliability of the connection between the clamping part 2 and the upper support seat 5, a clamping groove 21 is arranged annularly along the outer wall of the clamping part 2 near the lower end.

[0023] Furthermore, a plurality of vertical slits 22 are arranged circumferentially at the lower end of the clamping part 2 to ensure that the lower end of the clamping part 2 has a certain amount of deformation, facilitating the installation and disassembly process between the clamping part 2 and the upper support seat 5 and improving the use convenience.

[0024] When the shock absorber waterproof and dustproof cover of this embodiment is in use, the clamping part 2 extends into the central hole of the connecting block connected to the upper support seat 5, and the slot 21 on the clamping part 2 ensures the firmness of the clamping. The slit 22 on the clamping part 2 enables its end to have a certain amount of deformation, facilitating the installation and disassembly between the clamping part 2 and the connecting block. After the clamping part 2 is connected to the upper support seat 5, the lower end of the strengthening protection part 3 abuts against the upper end of the step part 51. The lower end of the cover body 1 covers the outside of the step part 51, and the cover body 1 is in inclined contact with the step part 51, so that a protection cavity 4 is surrounded between the inner wall of the cover body 51, the outer wall of the strengthening protection part 3 and the upper end of the step part 51, isolating the space between the strengthening protection part 3 and the clamping part 2. When there is liquid splashing from bottom to top, it first enters the protection cavity 4. The protection cavity 4 forms a second waterproof buffer area, effectively preventing the splashing liquid from directly entering the innermost cavity, thus achieving an effective dustproof and waterproof effect.

[0025] The above has described the present invention exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various non-substantive improvements are made by adopting the technical solutions of the present invention, or the concept and technical solutions of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A waterproof and dustproof cover for a shock absorber, the dustproof cover comprising a cover body with an opening at one end, characterized in that: The cover body is provided with a cylindrical clamping portion and a cylindrical reinforced protection portion, the clamping portion is connected at the center of the cover body and is used to be clamped in the upper support seat of the shock absorber; the reinforced protection portion is gap-mounted outside the clamping portion, and one end is sealed and connected to the inner wall of the cover body; when the cover body is connected to the upper support seat, the end of the reinforced protection portion abuts against the end surface of the upper support seat.

2. The waterproof and dustproof cover for a vibration absorber according to claim 1, characterized in that: The overhanging end of the reinforced protection portion is not higher than the opening end of the cover body.

3. The waterproof and dustproof cover for a vibration absorber according to claim 1, characterized in that: The opening end of the cover body is covered on the upper support seat.

4. The waterproof and dustproof cover for a vibration absorber according to claim 3, characterized in that: The cover body is in an arc shape as a whole to ensure that the liquid flows down smoothly from the arc-shaped cover body.

5. The waterproof and dustproof cover for a vibration absorber according to claim 1, characterized in that: The clamping portion is provided with an annular clamping groove to ensure the reliability of the connection with the upper support seat.

6. The waterproof and dustproof cover for a vibration absorber according to claim 5, characterized in that: The clamping portion is provided with a plurality of slits in the circumferential direction to ensure that the clamping portion has a certain deformation amount.

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