Damper dust cover with buffering function

Abstract

The utility model relates to the technical field of shock absorber dust-proof sleeves, in particular to a shock absorber dust-proof sleeve with a buffering function, which comprises a rubber spring sleeve and a shock absorber body, and two mutually symmetrical through holes communicated with an inner cavity of the rubber spring sleeve are arranged on the outer wall of the rubber spring sleeve close to the upper end and the lower end. The shock absorber body comprises two connecting discs which are located in the rubber spring sleeve and close to the upper end and the lower end and are tightly attached to the inner wall of the rubber spring sleeve, and a shock absorption spring which is installed between the two connecting discs and located in the rubber spring sleeve, and connecting pieces are installed on the opposite faces of the two connecting discs. According to the shock absorber, the rubber spring sleeve can play a role in dust prevention and protection on the shock absorber body, when the shock absorber body is subjected to external impact force, the shock absorber body can be buffered through the rubber spring sleeve, the rubber spring sleeve can be limited through the four limiting mechanisms, and therefore the shock absorber can be prevented from being damaged. And therefore, the aged or damaged rubber spring sleeve can be conveniently disassembled, maintained or replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to shock absorber dust cover technical field, concretely is the shock absorber dust cover with buffering function. BACKGROUND

[0002] The shock absorber is the key component in the vehicle suspension system, which can reduce the vibration of the vehicle due to uneven road surface during driving, improve the stability and comfort of driving, and the dust cover as an important accessory part of the shock absorber mainly protects the shock absorber piston rod from erosion by dust, sand, moisture and other impurities, prolonging the service life of the shock absorber.

[0003] The patent with publication number CN220378779U discloses an automobile shock absorber dust cover, which comprises an inner cover body, the main part of the inner cover body is an inner layer corrugated pipe, the inner layer corrugated pipe is provided with a configuration hole penetrating the inner and outer walls at a position close to the top end, the inner layer corrugated pipe is provided with a filter plug in the configuration hole, and an outer cover body is further provided outside the inner cover body.

[0004] Although the dust cover can maintain the balance of internal and external air pressure during extension and contraction by opening the convection hole on the cover body, the dust cover can smoothly and freely extend and contract, and is not easy to expand or contract, so as not to easily contact and rub with the shock absorber on the inside and the coil spring on the outside, prolonging the service life of the dust cover, but the dust cover is not convenient to disassemble after being installed with the shock absorber, and is not convenient to disassemble, overhaul or replace when the dust cover is aging or damaged. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing the shock absorber dust cover with buffering function to solve the problem of the dust cover being inconvenient to disassemble after being installed with the shock absorber, and being inconvenient to disassemble, overhaul or replace when the dust cover is aging or damaged.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The dust cover of shock absorber with buffering function, including rubber spring cover and shock absorber body, the rubber spring cover outer wall is close to both ends and is equipped with two mutually symmetrical through holes which are connected with the inner cavity and mutually symmetrical, the shock absorber body includes two connecting discs which are located in the rubber spring cover interior and close to both ends and are closely attached to the inner wall, the shock absorber body includes the shock absorber spring which is installed between the two connecting discs and is located in the rubber spring cover interior, the opposite surface of the two connecting discs is equipped with the connecting piece, the rubber spring cover outer wall is close to both ends and is equipped with two mutually symmetrical limiting mechanisms, the limiting mechanism includes the fixed plate which is fixed on the rubber spring cover outer wall and is shaped as L type, the gasket which is fixed with the fixed plate vertical plate end close to the rubber spring cover one side surface, the limiting spring which is installed in the gasket close to the rubber spring cover one side surface, the limiting disc which is fixed with the limiting spring other end, the moving block which is fixed on the limiting disc outer wall and is slidably connected with the fixed plate horizontal plate end, and the limiting disc close to the rubber spring cover one side surface is fixed with the limiting rod which penetrates the rubber spring cover outer wall same side through hole and is slidably inserted with the same side connecting disc.

[0008] As a preferred implementation, the fixed plate is away from the same side connecting piece one side and is equipped with the guide groove, and the moving block outer wall is fixed with the guide block which is slidably connected with the same side fixed plate outer wall guide groove.

[0009] As a preferred implementation, the limiting mechanism further includes the pull rod which is fixed on the limiting disc circumferential outer wall, and the pull rod shape is cylindrical.

[0010] As a preferred implementation, the connecting disc circumferential outer wall is equipped with two limiting holes which are corresponding with the rubber spring cover outer wall same side through hole position and are size adapted, the limiting rod penetrates the rubber spring cover outer wall same side through hole and is slidably inserted with the same side connecting disc outer wall same side limiting hole.

[0011] As a preferred implementation, the rubber spring cover outer wall is close to both ends and is equipped with two mutually symmetrical through grooves which are connected with the inner cavity and mutually symmetrical, the connecting disc circumferential outer wall is equipped with two screw holes which are corresponding with the rubber spring cover outer wall same side through groove position and are size adapted, the connecting disc circumferential outer wall is equipped with two bolts, the bolt rod body penetrates the rubber spring cover outer wall same side through groove and is threadedly connected with the same side connecting disc outer wall same side screw hole.

[0012] As a preferred implementation, the connecting disc size is adapted with the rubber spring cover inner cavity size, and the distance between the shock absorber spring and the rubber spring cover inner wall is 4-8cm.

[0013] As a preferred implementation, the fixed plate horizontal plate end outer wall guide groove longitudinal section shape is I type, and the guide block shape is I type which is adapted with the fixed plate horizontal plate end outer wall guide groove shape.

[0014] As a preferred embodiment, the length of the pull rod is 6-12 cm, and the outer wall of the pull rod is provided with anti-skid lines.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1、The utility model discloses a rubber spring cover can play the dustproof effect to the shock absorber body, when the shock absorber body is impacted by external force, the setting of rubber spring cover can also play the buffering effect to the shock absorber body, and the setting of four limiting mechanisms can limit rubber spring cover, thereby facilitating the disassembly, repair or replacement of aging or damaged rubber spring cover.

[0017] 2、The utility model discloses a fixed plate is provided with the guide groove on the side away from the same side connecting piece, and the outer wall of the moving block is fixed with the guide block that is slidably connected with the guide groove on the outer wall of the same side fixed plate, can guide the movement of moving block, and then can indirectly guide the movement of the limiting rod. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the enlarged view of A in the utility model;

[0020] Figure 3 It is the inside structure schematic diagram of rubber spring cover in the utility model;

[0021] Figure 4 It is the whole structure schematic diagram of shock absorber body in the utility model;

[0022] Figure 5 It is the whole structure schematic diagram of connecting disc in the utility model;

[0023] Figure 6 It is the enlarged view of B in the utility model;

[0024] Figure 7 It is the whole structure schematic diagram of rubber spring cover in the utility model;

[0025] Figure 8 It is the enlarged view of C in the utility model;

[0026] Figure 9 It is the whole structure schematic diagram of limiting mechanism in the utility model;

[0027] Figure 10 It is the partial explosion view of limiting mechanism in the utility model;

[0028] The meanings of the various reference numerals in the figures are as follows:

[0029] 1. rubber spring cover; 2. shock absorber body; 21. connecting disc; 22. shock absorbing spring; 23. connecting piece; 3. bolt; 4. limiting mechanism; 41. fixed plate; 42. limiting spring; 43. gasket; 44. limiting disc; 45. limiting rod; 46. moving block; 47. guide block; 48. pull rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0031] Please refer to Figures 1-10 The present application provides a technical solution: a shock absorber dust cover with a buffering function, comprising a rubber spring cover 1 and a shock absorber body 2. Two through holes that are connected to the inner cavity and are mutually symmetrical are arranged on the outer wall of the rubber spring cover 1 near the upper and lower ends. The shock absorber body 2 comprises two connecting discs 21 that are located inside the rubber spring cover 1 near the upper and lower ends and are tightly attached to the inner wall, a shock absorbing spring 22 that is installed between the two connecting discs 21 and is located inside the rubber spring cover 1, and a connecting piece 23 that is installed on the opposite side of each connecting disc 21. Two mutually symmetrical limiting mechanisms 4 are installed on the outer wall of the rubber spring cover 1 near the upper and lower ends. The limiting mechanism 4 comprises a fixed plate 41 that is fixed to the outer wall of the rubber spring cover 1 and has an L-shaped structure, a gasket 43 that is fixed to the side surface of the rubber spring cover 1 near the fixed plate 41, a limiting spring 42 that is installed on the side surface of the gasket 43 near the rubber spring cover 1, a limiting disc 44 that is fixed to the other end of the limiting spring 42, and a moving block 46 that is fixed to the outer wall of the limiting disc 44 and is in sliding connection with the horizontal end of the fixed plate 41. A limiting rod 45 that penetrates the through hole on the same side of the outer wall of the rubber spring cover 1 and is in sliding insertion with the connecting disc 21 on the same side is fixed to the side surface of the limiting disc 44 near the rubber spring cover 1. The rubber spring cover 1 can provide dust protection for the shock absorber body 2. When the shock absorber body 2 is subjected to external impact force, the rubber spring cover 1 can also provide buffering effect for the shock absorber body 2. The four limiting mechanisms 4 can limit the rubber spring cover 1, so that the aging or damaged rubber spring cover 1 can be easily disassembled, repaired or replaced.

[0032] In this embodiment, the fixed plate 41 is provided with a guide groove on the side away from the same side connecting piece 23, and the outer wall of the moving block 46 is fixed with a guide block 47 which is in sliding connection with the guide groove on the outer wall of the same side fixed plate 41, so that the movement of the moving block 46 can be guided, and the movement of the limiting rod 45 can be indirectly guided.

[0033] In addition, the limiting mechanism 4 further comprises a pull rod 48 fixed on the circumferential outer wall of the limiting disc 44, and the shape of the pull rod 48 is cylindrical, which facilitates the movement of the limiting disc 44 and the limiting rod 45.

[0034] Further, the circumferential outer wall of the connecting disc 21 is provided with two limiting holes corresponding in position and matching in size with the same side through holes on the outer wall of the rubber spring sleeve 1, the limiting rod 45 penetrates the same side through holes on the outer wall of the rubber spring sleeve 1 and is in sliding insertion with the same side limiting holes on the outer wall of the same side connecting disc 21, so that the two connecting discs 21 can be limited, and the whole shock absorber body 2 and the rubber spring sleeve 1 can be conveniently connected.

[0035] Specifically, the outer wall of the rubber spring sleeve 1 is provided with two mutually symmetrical through grooves near the upper and lower ends, the circumferential outer wall of the connecting disc 21 is provided with two threaded holes corresponding in position and matching in size with the same side through grooves on the outer wall of the rubber spring sleeve 1, and the circumferential outer wall of the connecting disc 21 is provided with two bolts 3, the shaft of the bolt 3 penetrates the same side through grooves on the outer wall of the rubber spring sleeve 1 and is in threaded connection with the same side threaded holes on the outer wall of the same side connecting disc 21, so that the two connecting discs 21 and the rubber spring sleeve 1 can be fixed together, and the whole rubber spring sleeve 1 can be more stable during work.

[0036] It is worth noting that the size of the connecting disc 21 is matched with the size of the inner cavity of the rubber spring sleeve 1, and the distance between the damping spring 22 and the inner wall of the rubber spring sleeve 1 is 4-8 cm, preferably 5 cm, so that the shock absorber body 2 can work normally, and the movement of the damping spring 22 will not be hindered by the rubber spring sleeve 1.

[0037] It is worth noting that the longitudinal section shape of the guide groove on the outer wall of the horizontal plate end of the fixed plate 41 is in the shape of an I-beam, and the shape of the guide block 47 is matched with the shape of the guide groove on the outer wall of the horizontal plate end of the fixed plate 41, so that the connection between the guide block 47 and the guide groove on the outer wall of the horizontal plate end of the same side fixed plate 41 is more close, and the limiting disc 44 and the limiting rod 45 are more stable during movement.

[0038] It is worth emphasizing that the length of the pull rod 48 is 6-12 cm, and the outer wall of the pull rod 48 is provided with anti-skid lines, preferably 7 cm, so that the friction between the hand and the pull rod 48 can be increased, and the pull rod 48 can be conveniently operated by the staff.

[0039] Wherein, the shock absorber body 2 involved in the embodiment is prior art, the structure and working principle of which are as known to those skilled in the art, and will not be repeated here.

[0040] In the specific use process of the embodiment, when the rubber spring cover 1 needs to be disassembled and replaced, first, the shock absorber body 2 is disassembled from the vehicle body, then the four bolts 3 are unscrewed, then the four pull rods 48 are pulled to move the pull rod 48 away from the rubber spring cover 1, the movement of the pull rod 48 drives the movement of the limiting disc 44 fixed thereto, the limiting disc 44 moves under the guidance of the guide grooves on the same side moving block 46, the same side guide block 47 and the vertical plate end outer wall of the same side fixed plate 41, the movement of the limiting disc 44 drives the compression of the same side limiting spring 42 fixed thereto, and the limiting disc 44 also drives the movement of the limiting rod 45 away from the same side connecting disc 21, when the limiting rod 45 is completely separated from the same side limiting hole on the outer wall of the same side connecting disc 21 and the same side through hole on the outer wall of the rubber spring cover 1, then move the entire shock absorber body 2 upward or downward until the shock absorber body 2 is completely separated from the rubber spring cover 1, then slowly loosen the four pull rods 48, the movement of the pull rod 48 drives the resetting of the same side limiting spring 42; conversely, the repaired or new rubber spring cover 1 can be installed.

[0041] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A dust cover for a shock absorber with a buffer function, comprising a rubber spring cover (1) and a shock absorber body (2), characterized in that, The outer wall of the rubber spring sleeve (1) is provided with two through holes near the upper and lower ends, which are connected with the inner cavity and symmetrical to each other, the shock absorber body (2) comprises two connecting discs (21) which are located near the upper and lower ends inside the rubber spring sleeve (1) and closely attached to the inner wall, a damping spring (22) which is installed between the two connecting discs (21) and located inside the rubber spring sleeve (1), the opposite surfaces of the two connecting discs (21) are provided with connecting pieces (23), the outer wall of the rubber spring sleeve (1) is provided with two limiting mechanisms (4) near the upper and lower ends, the limiting mechanism (4) comprises a fixed plate (41) which is fixed on the outer wall of the rubber spring sleeve (1) and shaped as an L-shaped, a gasket (43) which is fixed on the vertical plate end of the fixed plate (41) and close to the side surface of the rubber spring sleeve (1), a limiting spring (42) which is installed on the side surface of the gasket (43) and close to the rubber spring sleeve (1), a limiting disc (44) which is fixed on the other end of the limiting spring (42), a moving block (46) which is fixed on the outer wall of the limiting disc (44) and slidably connected with the horizontal plate end of the fixed plate (41), and a limiting rod (45) which is fixed on the side surface of the limiting disc (44) and close to the rubber spring sleeve (1) and penetrates through the through hole on the same side of the outer wall of the rubber spring sleeve (1) and slidably inserted into the connecting disc (21) on the same side.

2. The dust cover for a shock absorber with a buffer function according to claim 1, characterized in that: The side of the fixed plate (41) away from the connecting piece (23) on the same side is provided with a guide groove, and the outer wall of the moving block (46) is fixed with a guide block (47) which is slidably connected with the guide groove on the outer wall of the fixed plate (41) on the same side.

3. The dust boot for a shock absorber with a bumper function according to claim 1, characterized in that: The limiting mechanism (4) further comprises a pull rod (48) which is fixed on the circumferential outer wall of the limiting disc (44), and the shape of the pull rod (48) is cylindrical.

4. The dust boot for a shock absorber with a bumper function according to claim 1, characterized in that: The circumferential outer wall of the connecting disc (21) is provided with two limiting holes which are corresponding to the positions of the through holes on the outer wall of the rubber spring sleeve (1) on the same side and are matched in size, the limiting rod (45) penetrates through the through hole on the outer wall of the rubber spring sleeve (1) on the same side and is slidably inserted into the limiting hole on the outer wall of the connecting disc (21) on the same side.

5. The dust boot for a shock absorber with a bumper function according to claim 1, characterized in that: The outer wall of the rubber spring sleeve (1) is provided with two through grooves near the upper and lower ends, which are connected with the inner cavity and symmetrical to each other, the circumferential outer wall of the connecting disc (21) is provided with two threaded holes which are corresponding to the positions of the through grooves on the outer wall of the rubber spring sleeve (1) on the same side and are matched in size, the connecting disc (21) is provided with two bolts (3), the rod body of the bolt (3) penetrates through the through groove on the outer wall of the rubber spring sleeve (1) on the same side and is threadedly connected with the threaded hole on the outer wall of the connecting disc (21) on the same side.

6. The dust boot for a shock absorber with a bumper function according to claim 1, characterized in that: The size of the connecting disc (21) is matched with the size of the inner cavity of the rubber spring sleeve (1), and the distance between the damping spring (22) and the inner wall of the rubber spring sleeve (1) is 4-8 cm.

7. The dust boot for a shock absorber with a bumper function according to claim 2, characterized by: The longitudinal section shape of the guide groove on the horizontal plate end outer wall of the fixed plate (41) is H-shaped, and the shape of the guide block (47) is H-shaped which is matched with the shape of the guide groove on the horizontal plate end outer wall of the fixed plate (41).

8. The dust boot for a shock absorber with a bumper function according to claim 3, characterized in that: The length of the pull rod (48) is 6-12 cm, and the outer wall of the pull rod (48) is provided with anti-skid lines.

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