CN212717761U - Dustproof end cover of shock absorber - Google Patents

Abstract

The utility model discloses a dustproof end cover of a shock absorber, which comprises an annular cover body, wherein the middle part of the upper cover of the cover body and the cover body are concentrically and symmetrically provided with a plurality of buffering components, through holes for the telescopic rod to pass in and out are arranged at the central position of the upper cover and between the buffering components to form telescopic holes, the buffering components comprise dustproof plates which can be arranged in a way of rotating up and down through rotating shafts and buffering plates which are arranged below the dustproof plates, and sealing films are fixed between the upper edges of the dustproof plates and the upper covers on the peripheral sides; and an O-shaped ring is arranged at one end of each dustproof plate facing the telescopic hole. The utility model discloses the dustproof end cover of bumper shock absorber cushions the radial power with horizontal production of telescopic link, prevents to cause the damage to the end cover of bumper shock absorber.

Description

Dustproof end cover of shock absorber

Technical Field

The utility model relates to a bumper shock absorber field, concretely relates to dustproof end cover of bumper shock absorber.

Background

Dust that the car travel in-process was raised is very easily taken into the bumper shock absorber inside the flexible in-process of the telescopic link of bumper shock absorber, influence the shock attenuation efficiency of bumper shock absorber, and the end cover of bumper shock absorber generally is rigid structure, not only has vertical flexible in the bumper shock absorber use, often slight horizontal hunting still, if can not change the horizontally power that produces the horizontal hunting and solve, can harm the end cover of bumper shock absorber in the past this long, shorten the life that the bumper shock absorber made.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a can carry out the bumper shock absorber end cover that cushions to radial and horizontally power. The technical scheme of the utility model as follows:

a dustproof end cover of a shock absorber comprises an annular cover body; the middle part of the upper cover of the cover body is symmetrically provided with a plurality of buffer components by taking the circle center of the cover body as the center; through holes for the telescopic rod to pass in and out are formed in the center of the upper cover and among the buffer assemblies to form telescopic holes; the buffer assembly comprises a dust guard plate and a buffer plate, wherein the dust guard plate is arranged through a rotating shaft in a vertically rotating manner; a sealing film is fixed between the upper edge of the dustproof plate and the upper cover on the peripheral side; and an O-shaped ring is arranged at one end of each dustproof plate facing the telescopic hole.

Furthermore, the side wall of the middle part of the buffer plate, which is close to the dust guard, protrudes towards the dust guard to form a first limiting block, and the side wall of the dust guard is provided with a first limiting groove for the first limiting block to extend into; first springs which can vertically stretch are respectively arranged between two sides of the first limiting block and the inner wall of the first limiting groove; and a second spring which can horizontally stretch is arranged between one side of the buffer plate, which is close to the rotating shaft, and the upper cover.

Furthermore, one side of the dust guard is far away from the rotating shaft and extends towards the buffer plate to form a second limiting block, and a second limiting groove for the second limiting block to extend into is formed in the side wall of the buffer plate at the position of the second limiting block.

Further, a first sealing strip is arranged between the second limiting block and the second limiting groove; and a second sealing strip is arranged between the second spring and the first spring on one side close to the rotating shaft and between the dust guard plate and the buffer plate.

Furthermore, a notch for accommodating the dust guard to rotate upwards is arranged at the position above the rotating shaft and on the upper cover.

Further, the sealing film extends above the gap and covers the gap.

Based on the technical scheme, the utility model discloses the technological effect that can realize does:

1. the utility model discloses a bumper shock absorber dustproof end cover, each buffering subassembly is independent each other, can carry out the flexible buffering at the slight horizontal power that flexible and all directions produced to the telescopic link, avoids the antagonism between the rigid material to cause the damage to the end cover.

2. The utility model discloses a bumper shock absorber dustproof end cover, seal membrane cooperate O type circle to link each buffering subassembly into an organic whole when preventing that the dust from getting into bumper shock absorber inside, when local horizontally power or flexible power are great, will do all can the power dispersion give other buffering subassemblies.

3. The utility model discloses a bumper shock absorber dust cover, first spring and second spring cushion to the power and the horizontal power that the bigger vertical flexible of telescopic link produced respectively, further protect the bumper shock absorber end cover, prevent to excessively stretch into the inside damage that causes of bumper shock absorber.

4. The utility model discloses a bumper shock absorber dustproof end cover, the sealing performance of end cover is guaranteed to seal membrane and O type circle, prevents that the dust from getting into inside the bumper shock absorber.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view A of the present invention;

fig. 3 is a schematic top view of the present invention;

in the figure: 1-a cover body; 11-upper cover; 12-a notch; 13-a telescopic hole; 2-a buffer component; 21-a second limiting block; 22-a rotating shaft; 23-dust guard; 24-a buffer plate; 25-a sealing film; 26-a piston rod; 27-a first stopper; 28-a second spring; 29-first spring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely illustrative of some, but not all, embodiments of the invention.

As shown in fig. 1 to 3, the present embodiment provides a dust-proof end cap for a shock absorber, which comprises an annular cap body 1. The middle part of the upper cover 11 of the cover body 1 is symmetrically provided with a plurality of buffer components 2 by taking the circle center of the cover body 1 as the center. Through holes for the telescopic rods to pass in and out are formed in the center of the upper cover 11 and among the buffer assemblies 2 to form telescopic holes 13. The damper unit 2 includes a dust-proof plate 23 provided to be rotatable up and down by a rotation shaft 22, and a damper plate 24 provided below the dust-proof plate 23. A sealing film 25 is fixed between the upper edge of the dust-proof plate 23 and the upper cover 11 on the peripheral side; an O-ring 3 is provided at one end of each dust-proof plate 23 facing the telescopic hole 13.

Preferably, a side wall of the middle portion of the buffer plate 24, which is close to the dust-proof plate 23, protrudes toward the dust-proof plate 23 to form a first limiting block 27, and a side wall of the dust-proof plate 23 is provided with a first limiting groove 26 for the first limiting block 27 to extend into. First springs 29 which can vertically stretch and retract are respectively arranged between two sides of the first limiting block 27 and the inner wall of the first limiting groove 26. A second spring 28 which can horizontally stretch and retract is arranged between one side of the buffer plate 24 close to the rotating shaft 22 and the upper cover 11. Preferably, one side of the dust-proof plate 23, which is far away from the rotating shaft 22, extends to the buffer plate 24 below to form the second limiting block 21, and the side wall of the buffer plate 24 at the position of the second limiting block 21 is provided with a second limiting groove for the second limiting block 21 to extend into. Preferably, a first sealing strip 31 is arranged between the second limiting block 21 and the second limiting groove. Second sealing strips 32 are arranged between the second spring 28 and the first spring 29 on the side close to the rotating shaft 22 and between the dust-proof plate 23 and the buffer plate 24.

Preferably, the upper cover 11 above the rotating shaft 22 is provided with a notch 12 for accommodating the dust-proof plate 23 to rotate upwards. Preferably, the sealing membrane 25 extends above the notch 12 and covers the notch 12.

Based on foretell structure, the utility model discloses a bumper shock absorber dust cover, in the use, the telescopic link is in the elasticity that telescopic hole 13 department up-and-down motion drove buffering subassembly 2 and overcomes second spring 28 pivot from top to bottom along pivot 22, then gets back to the normal position under second spring 28's auxiliary action. When the telescopic rod moves up and down, the sealing film 25 and the second spring 28 on the peripheral side of the dust-proof plate 23 buffer the up-and-down pulling force and improve the sealing performance. When the telescopic rod transversely swings in the process of moving up and down, the pressure applied to the dust guard 23 in the swinging direction is larger, part of the pressure is transmitted to the surrounding dust guard 23 by the sealing film 25 for buffering, meanwhile, the telescopic rod swings and pushes against the lower buffering plate 24, and part of the pressure is buffered by the first spring 29 and the second spring 28 at the buffering plate 24, so that the damage of the end cover is further prevented. The first stopper 27 and the second stopper 21 can keep the position between the dust-proof plate 23 and the buffer plate 24 relatively stable.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (6)

1. The dustproof end cover of the shock absorber is characterized by comprising an annular cover body (1); the middle part of an upper cover (11) of the cover body (1) is symmetrically provided with a plurality of buffer assemblies (2) by taking the circle center of the cover body (1) as the center; through holes for the telescopic rods to pass in and out are formed in the center of the upper cover (11) and among the buffer assemblies (2) to form telescopic holes (13); the buffer assembly (2) comprises a dust guard (23) which can be arranged in a vertically rotating manner through a rotating shaft (22) and a buffer plate (24) which is arranged below the dust guard (23); a sealing film (25) is fixed between the upper edge of the dustproof plate (23) and the upper cover (11) on the peripheral side; and an O-shaped ring (3) is arranged at one end of each dustproof plate (23) facing the telescopic hole (13).

2. The dust-proof end cover of the shock absorber according to claim 1, wherein a side wall of the middle part of the buffer plate (24) close to the dust-proof plate (23) protrudes towards the dust-proof plate (23) to form a first limit block (27), and the side wall of the dust-proof plate (23) is provided with a first limit groove (26) for the first limit block (27) to extend into; first springs (29) which can vertically stretch are respectively arranged between two sides of the first limiting block (27) and the inner wall of the first limiting groove (26); a second spring (28) which can horizontally stretch is arranged between one side of the buffer plate (24) close to the rotating shaft (22) and the upper cover (11).

3. The dustproof end cover of the shock absorber according to claim 2, wherein one side of the dustproof plate (23) away from the rotating shaft (22) extends to the lower buffer plate (24) to form a second limiting block (21), and a second limiting groove for the second limiting block (21) to extend into is formed in the side wall of the buffer plate (24) at the position of the second limiting block (21).

4. The dustproof end cover of the shock absorber according to claim 3, wherein a first sealing strip (31) is arranged between the second limiting block (21) and the second limiting groove; and a second sealing strip (32) is arranged between the second spring (28) and the first spring (29) on one side close to the rotating shaft (22) and between the dust guard (23) and the buffer plate (24).

5. The dust-proof end cover of the shock absorber according to claim 1, wherein the upper cover (11) is provided with a notch (12) for allowing the dust-proof plate (23) to rotate upwards at a position above the rotating shaft (22).

6. The shock absorber dust cap according to claim 5, wherein the sealing membrane (25) extends over the gap (12) and covers the gap (12).

Images