Shock absorber with dustproof cover

Abstract

The utility model relates to the technical field of shock absorbers, in particular to a shock absorber with a dustproof cover, which comprises a dustproof cover body, an exhaust mechanism is arranged at the top end of the dustproof cover body and comprises an outer sealing shell fixedly connected to the top end of the dustproof cover body, and a plurality of groups of outer air holes are formed in the outer side wall of the outer sealing shell. An inner rubber layer is wrapped in the outer sealing shell, a plurality of sets of inner air holes are formed in the surface of the inner rubber layer, the inner rubber layer corresponds to the inner air holes in angle, an extrusion column is fixedly connected to the top end of the inner rubber layer, and a connecting sleeve is arranged below the extrusion column and fixedly connected to the bottom end of the dustproof cover body. A center cavity is formed in the center of the connecting sleeve. According to the dustproof cover, the dustproof cover body is matched with the exhaust mechanism, the extrusion column is used for driving the inner rubber layer to deform in the outer sealing shell, so that a channel is formed between the outer air hole and the inner air hole which are originally in a sealed state, and air is prevented from being expanded and extruded in the center cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, and particularly relates to a shock absorber with a dust cover. Background Art

[0002] The requirements of vehicle manufacturers for the quality of automotive parts are constantly increasing. The automotive shock absorber has a very important impact on the handling stability and ride comfort of the vehicle, and plays a crucial role in the competition of the automotive industry.

[0003] After retrieval, the patent document with the publication number CN219221126U proposes a shock absorber with internal buffer protection: The utility model discloses a shock absorber with internal buffer protection, belonging to the technical field of shock absorbers, including an outer cylinder. The outer cylinder is provided with a shock absorption cavity, and the shock absorption cavity communicates with two symmetric sliding grooves opened on the outer cylinder. The inner wall of the sliding groove is connected with a protection spring, the protection spring is connected with a sliding block, the sliding block is connected with a contact strip, the contact strip is connected with a blocking plate, the blocking plate is connected with a shock absorption cylinder, the shock absorption cylinder is connected with a contact plate, the contact plate is connected with a matching component A, one end of the outer cylinder far away from the matching component A is connected with a matching component B, the outer cylinder is slidably connected with a moving ring, and a shock absorption spring is slidably connected between the moving ring and the contact plate. The shock absorption spring is arranged outside the shock absorption cylinder. The utility model realizes a secondary blocking action during the shock absorption process of the shock absorber, improves the function of the shock absorber, and reduces the influence of large vibrations on the service life of the shock absorber.

[0004] During the use of the above technical solution, there is no exhaust structure on the dust cover of the shock absorber, resulting in the inability of the gas in the buffer block to be discharged smoothly when the buffer block contacts and compresses the dust cover, causing expansion and extrusion of the internal cavity of the buffer block, and making the buffer block fail prematurely.

[0005] Therefore, it is very necessary to invent a shock absorber with a dust cover to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a shock absorber with a dust cover, so that the gas inside the shock absorber can be discharged through the cooperation of the dust cover body and the exhaust mechanism, so as to solve the problem that the gas in the buffer block in the prior art cannot be discharged smoothly, causing expansion and extrusion of the internal cavity of the buffer block, and making the buffer block fail prematurely.

[0007] To achieve the above object, the present utility model provides the following technical solution: A shock absorber with a dust cover, including a dust cover body, an exhaust mechanism is provided at the top end of the dust cover body, the exhaust mechanism includes an outer sealing shell fixedly connected to the top end of the dust cover body, several groups of outer ventilation holes are provided on the outer side wall of the outer sealing shell, an inner rubber layer is wrapped inside the outer sealing shell, several groups of inner ventilation holes are provided on the surface of the inner rubber layer, the inner rubber layer corresponds to the angle of the inner ventilation holes, a pressing column is fixedly connected to the top end of the inner rubber layer, a connecting sleeve is provided below the pressing column and the connecting sleeve is fixedly connected to the bottom end of the dust cover body, a central cavity is provided at the center of the connecting sleeve, and the inner ventilation holes are squeezed by the vibration generated during buffering, so as to form a channel between the inner ventilation holes and the outer ventilation holes to discharge the air inside the central cavity.

[0008] Preferably, a telescopic column is fixedly connected to the top end of the dust cover body, and a first buffer spring is sleeved on the outer side wall of the telescopic column, and the cooperation of the telescopic column and the first buffer spring is used to further enhance the buffering performance.

[0009] Preferably, a contact plate is fixedly connected to the top end of the telescopic column, and the bottom end of the contact plate is fixedly connected to the top end of the pressing column, and the pressing column is driven to expand and contract through the contact plate.

[0010] Preferably, a contact column is fixedly connected to the top end of the contact plate, and a placement ring is fixedly connected to the top end of the contact column, and the cooperation of the placement ring and the contact column is used to realize the connection with the outside.

[0011] Preferably, a second buffer spring abuts against the bottom end of the connecting sleeve, and the bottom end of the second buffer spring is fixedly connected to a shock absorption cylinder, and the shock absorption cylinder is threadedly connected to the bottom end of the dust cover body, and the inner buffer of the shock absorption cylinder is realized through the cooperation of the dust cover body and the second buffer spring.

[0012] Preferably, two installation grooves are provided on the outer side wall of the shock absorption cylinder, and threaded holes are provided on both sides of the installation groove and the threaded holes are provided on the outer side wall of the shock absorption cylinder, and the cooperation of the threaded holes and the installation grooves facilitates the installation of other parts on the shock absorption cylinder.

[0013] In the above technical solution, the technical effects and advantages provided by the present utility model are:

[0014] 1. Through the cooperation of the dust cover body and the exhaust mechanism, the inner rubber layer is driven by the pressing column to deform inside the outer sealing shell, so that a channel is generated between the originally sealed outer ventilation holes and the inner ventilation holes, so that the gas inside the central cavity can be discharged to the outside through the inner ventilation holes and the outer ventilation holes, thereby avoiding the expansion and extrusion of the gas inside the central cavity and affecting other parts;

[0015] 2. Through the cooperation of the telescopic column, the first buffer spring and the second buffer spring, the damping cylinder realizes the primary buffering through the cooperation of the telescopic column and the first buffer spring, and the damping cylinder realizes the secondary buffering through the cooperation of the second buffer spring and the exhaust mechanism, thereby improving the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0017] Figure 1 is a schematic diagram of the internal structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 3 is of the present utility model Figure 1 is an enlarged schematic diagram of part A therein;

[0020] Figure 4 is of the present utility model Figure 2 is an enlarged schematic diagram of part B therein.

[0021] DESCRIPTION OF THE REFERENCE NUMERALS:

[0022] 1. Dust-proof cover body; 2. Exhaust mechanism; 201. Outer sealing shell; 202. Outer ventilation hole; 203. Inner rubber layer; 204. Inner ventilation hole; 205. Extrusion column; 206. Connecting sleeve; 207. Central cavity; 3. Telescopic column; 4. First buffer spring; 5. Placing ring; 6. Contact column; 7. Contact plate; 8. Second buffer spring; 9. Installation groove; 10. Threaded hole; 11. Damping cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail with reference to the drawings.

[0024] The present utility model provides as Figures 1-4The shock absorber with a dust cover shown in the figure includes a dust cover body 1, and an exhaust mechanism 2 is provided at the top of the dust cover body 1. The exhaust mechanism 2 includes an outer sealing shell 201 fixedly connected to the top of the dust cover body 1, and the outer side wall of the outer sealing shell 201 is provided with a plurality of groups of outer air holes 202. The interior of the outer sealing shell 201 is wrapped with an inner rubber layer 203, and the surface of the inner rubber layer 203 is provided with a plurality of groups of inner air holes 204. The angles of the inner rubber layer 203 and the inner air holes 204 correspond to each other, so that when the inner rubber layer 203 is deformed, the inner air holes 204 can communicate with the outer air holes 202. The top of the inner rubber layer 203 is fixedly connected to an extrusion column 205, and the extrusion column 205 is used to squeeze the inner rubber layer 203 to deform, and a connecting rod is provided below the extrusion column 205. The sleeve 206 is fixedly connected to the bottom end of the dust cover body 1, and a central cavity 207 is opened in the center of the connecting sleeve 206. The inner air hole 204 is squeezed by the vibration generated during buffering, so that a channel is formed between the inner air hole 204 and the outer air hole 202 to discharge the air inside the central cavity 207. Through the cooperation of the dust cover body 1 and the exhaust mechanism 2, the extrusion column 205 is used to drive the inner rubber layer 203 to deform inside the outer sealing shell 201, so that a channel is generated between the outer air hole 202 and the inner air hole 204 that were originally in a sealed state, so that the gas inside the central cavity 207 can be discharged to the outside through the inner air hole 204 and the outer air hole 202, thereby preventing the gas from expanding and squeezing inside the central cavity 207 and affecting other parts.

[0025] Refer to the instruction manual Figures 1-4 The top of the dust cover body 1 is fixedly connected with a telescopic column 3, and the outer wall sleeve of the telescopic column 3 is provided with a buffer spring 4. The cooperation between the telescopic column 3 and the buffer spring 4 further enhances the buffering performance. The top of the telescopic column 3 is fixedly connected with a contact plate 7, and the bottom end of the contact plate 7 is fixedly connected to the top of the extrusion column 205. The extrusion column 205 is driven to expand and contract through the contact plate 7. The top of the contact plate 7 is fixedly connected with a contact column 6, and the top of the contact column 6 is fixedly connected with a placement ring 5. The placement ring 5 and the contact column 6 are used to achieve connection with the outside world. The bottom end of the connecting sleeve 206 is in contact with a buffer spring 28, and the bottom end of the buffer spring 28 is fixedly connected to a vibration damping cylinder 11. The vibration damping cylinder 11 It is threadedly connected to the bottom end of the dust cover body 1, and the internal buffering of the shock absorber cylinder 11 is realized through the cooperation between the dust cover body 1 and the buffer spring 2 8. Two sets of mounting grooves 9 are provided on the outer wall of the shock absorber cylinder 11. Threaded holes 10 are provided on both sides of the mounting grooves 9, and the threaded holes 10 are opened on the outer wall of the shock absorber cylinder 11. The cooperation between the threaded holes 10 and the mounting grooves 9 facilitates the installation of other parts on the shock absorber cylinder 11. Through the cooperation between the telescopic column 3, the buffer spring 1 4 and the buffer spring 2 8, the cooperation between the telescopic column 3 and the buffer spring 1 4 enables the shock absorber cylinder 11 to achieve initial buffering, and through the cooperation between the buffer spring 2 8 and the exhaust mechanism 2, the shock absorber cylinder 11 achieves secondary buffering, thereby improving the stability of the structure.

[0026] Working principle of this utility model:

[0027] Refer to the attached Figures 1-4 After installing the shock absorber cylinder 11 and the dust cover body 1 inside the vehicle by placing the ring 5 and other parts, when the vehicle vibrates, the shock absorber cylinder 11 realizes the primary buffering through the cooperation of the telescopic column 3 and the first buffer spring 4, and realizes the secondary buffering through the cooperation of the second buffer spring 8 and the exhaust mechanism 2, so as to improve the stability of the structure. During the vibration of the vehicle, after the contact plate 7 is stressed, it drives the inner rubber layer 203 to deform inside the outer sealing shell 201 through the extrusion column 205, so that a channel is generated between the outer ventilation holes 202 and the inner ventilation holes 204 that were originally in a sealed state, so that the gas inside the central cavity 207 can be discharged to the outside through the inner ventilation holes 204 and the outer ventilation holes 202, thus avoiding the influence of the expansion and extrusion of the gas inside the central cavity 207 on other parts.

[0028] Only some exemplary embodiments of the present utility model have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A shock absorber with a dust cover, comprising a dust cover body (1), characterized in that: An exhaust mechanism (2) is provided at the top of the dust cover body (1). The exhaust mechanism (2) includes an outer sealing shell (201) fixedly connected to the top of the dust cover body (1). A number of groups of outer ventilation holes (202) are provided on the outer side wall of the outer sealing shell (201). An inner rubber layer (203) is wrapped inside the outer sealing shell (201). A number of groups of inner ventilation holes (204) are provided on the surface of the inner rubber layer (203). The inner rubber layer (203) corresponds to the angle of the inner ventilation holes (204). A pressing column (205) is fixedly connected to the top of the inner rubber layer (203). A connecting sleeve (206) is provided below the pressing column (205) and the connecting sleeve (206) is fixedly connected to the bottom end of the dust cover body (1). A central cavity (207) is provided at the center of the connecting sleeve (206).

2. The shock absorber with a dust cover according to claim 1, characterized in that: A telescopic column (3) is fixedly connected to the top of the dust cover body (1). A first buffer spring (4) is sleeved on the outer side wall of the telescopic column (3).

3. The shock absorber with a dust cover according to claim 2, characterized in that: A contact plate (7) is fixedly connected to the top of the telescopic column (3). The bottom end of the contact plate (7) is fixedly connected to the top end of the pressing column (205).

4. The shock absorber with a dust cover according to claim 3, characterized in that: A contact column (6) is fixedly connected to the top of the contact plate (7). A placement ring (5) is fixedly connected to the top end of the contact column (6).

5. A shock absorber with a dust cover according to claim 1, characterized in that: A second buffer spring (8) abuts against the bottom end of the connecting sleeve (206). The bottom end of the second buffer spring (8) is fixedly connected to a damping cylinder (11). The damping cylinder (11) is threadedly connected to the bottom end of the dust cover body (1).

6. The shock absorber with a dust cover according to claim 5, characterized in that: Two mounting grooves (9) are provided on the outer side wall of the damping cylinder (11). Threaded holes (10) are provided on both sides of the mounting grooves (9) and the threaded holes (10) are provided on the outer side wall of the damping cylinder (11).

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