Abnormal sound prevention shock absorber protecting cover

Abstract

The utility model discloses a shock absorber protecting cover capable of preventing abnormal sound, and belongs to the technical field of automobile parts, the shock absorber protecting cover comprises a shell and an upper cover arranged at the upper end of the shell, the top surface of the upper cover is of a non-planar structure, the top surface of the upper cover is of a structure with the center higher than the periphery, and a through hole is formed in the center of the upper cover; a plurality of exhaust grooves are formed in the top face of the upper cover in the radial direction, and the peripheral face of the upper cover and the through hole are communicated through the exhaust grooves. The exhaust groove is formed in the top of the protective cover, abnormal sound of airflow can be effectively reduced, the center of the upper cover is arched, deviation generated by collision between the buffer block and the protective cover can be reduced, and the service life of the buffer block is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of automotive parts, and particularly to an anti-abnormal noise shock absorber cover. Background Art

[0002] The shock absorber cover is located at the upper end of the shock absorber body and is a component used to support and transfer the shock load of the shock absorber to the buffer block. Currently, in the market, for vehicle shock absorbers, it is common to directly install the oil seal and the guide in the working cylinder, and then use the cover to weld the piston rod and the cover to achieve the sealing function.

[0003] Related prior art such as the Chinese patent application "Shock Absorber Cover", application number: CN202123436514.6, discloses: including a protective member and a strengthening member; wherein, the strengthening member is arranged at the top of the protective member and is connected to the protective member. The shock absorber cover provided by this application adds a strengthening member, so the protective member can be made relatively thin. While ensuring impact resistance, the size of the protective member is within a certain preset range, and thus it can be directly assembled with other existing components. It can be seen that other components cooperating with the protective member do not need to be redesigned, and the adaptability is higher, so it is applied to the platform use of special parts of the CDC shock absorber. In addition, since other parts do not need to be redesigned, the development cost is reduced. In addition, since there is no need to reduce the outer diameter size of the parts of the CDC shock absorber, the damping effect is ensured.

[0004] The early shock absorber cover had a simple structure and no additional structural treatment was done on the cover. During the operation of the vehicle, a large amount of air flow is generated. Since the shock absorber cover has no exhaust structure, abnormal noise is likely to occur. For this, in the above patent application, a first recessed portion and a second recessed portion that are adapted to each other are respectively formed at the top of the protective member and the top of the strengthening member, mainly for leaving the exhaust channel required during the compression stroke. The above patent application can effectively reduce the air flow abnormal noise caused by the impact between the buffer block and the top of the cover to a certain extent. However, there is still room for further improvement in the above shock absorber cover structure to further reduce the air flow abnormal noise caused by the impact between the buffer block and the top of the cover. Summary of the Utility Model

[0005] The technical problem to be solved by this application is to provide an anti-abnormal noise shock absorber cover. By designing an exhaust groove at the top of the cover, the air flow abnormal noise can be effectively reduced, and the structure with the center of the upper cover arched can reduce the offset generated by the impact between the buffer block and the cover, and increase the service life of the buffer block.

[0006] The technical solution adopted in this application is as follows: An anti-abnormal noise shock absorber cover includes a housing and an upper cover disposed at the upper end of the housing. The top surface of the upper cover is a non-planar structure, with the center of the top surface of the upper cover being higher than the periphery. A through hole is provided at the center of the upper cover. A plurality of exhaust grooves are radially provided on the top surface of the upper cover, and the exhaust grooves communicate the outer peripheral surface of the upper cover with the through hole.

[0007] Compared with the prior art, the advantages of this application are as follows. First, a plurality of exhaust grooves are added on the top surface of the upper cover in this application, effectively guiding the air flow to discharge from the exhaust grooves. Moreover, the exhaust groove structure in this application communicates the outer peripheral surface of the upper cover with the through hole, further improving the exhaust effect of the product and guiding the air flow to be discharged smoothly. Second, the top surface of the upper cover is designed as a non-planar structure in this application. Specifically, the top surface of the upper cover has a structure where the center is higher than the periphery. Then, when the cover impacts with the external buffer block, the structural design of the top surface of the upper cover can effectively reduce the offset generated by the impact between the buffer block and the cover, thereby increasing the service life of the product.

[0008] In some embodiments of this application, the top surface of the upper cover includes an inner ring surface and an outer ring surface. The outer ring surface and the inner ring surface are coaxially arranged, the outer ring surface is connected to the outer periphery of the inner ring surface, the outer ring surface is a horizontal plane, and the inner ring surface is a curved surface that warps upward from the center.

[0009] Through the optimization of the top surface structure of the upper cover in this application, the offset generated by the impact of the cover is reduced under the working environment, thereby increasing the service life of the product.

[0010] In some embodiments of this application, the housing is a cylindrical structural member, the upper cover is an annular structural member, and the upper cover and the housing are integrally formed. That is, the shock absorber cover in this application is an integrally formed overall structure, which is only divided into the upper cover and the housing for the convenience of description.

[0011] In some embodiments of this application, a plurality of notches are provided on the outer surface of the housing, and the plurality of notches are arranged at equal intervals on the housing. A plurality of grooves are provided on the bottom surface of the upper cover, and the grooves correspond to the notches one by one.

[0012] Specifically, six notches are provided on the housing in this application, and six grooves are correspondingly provided on the bottom surface of the upper cover, which is the preferred structural solution of this application. While ensuring the structural strength of the product in this application, the air flow in the cavity of the shock absorber cover is also ensured to be discharged.

[0013] In some embodiments of this application, a convex block with an overall fan-shaped ring structure is provided between the two grooves. The convex block is arranged to fit the inner wall surface of the housing, and the convex block is provided with a stepped shape near the through hole. In this application, the convex block structure ensures the structural strength while making the product lightweight.

[0014] In some embodiments of the present application, the bump extends an extension on the inner wall surface of the housing. The extension is in a rectangular sheet structure and is arranged along the axial direction of the housing. The setting of the extension further improves the structural strength of the product.

[0015] In some embodiments of the present application, a flanging that turns outward is provided on the bottom surface of the housing, and several clamping protrusions are also provided on the surface of the housing. The clamping protrusions are close to the flanging and there is a spacing between them.

[0016] Three clamping protrusions are evenly distributed on the outer surface. The longitudinal section of the clamping protrusion is triangular, and the top surface of the clamping protrusion is an inclined surface.

[0017] The flanging of the protective cover is used for assembling with the dust cover. Three clamping protrusions are designed on the outer wall of the protective cover so that they are evenly distributed on the outer wall. This structure can directly clamp the protective cover in the dust cover when assembling with the dust cover, strengthening the assembly effect with the dust cover and not easily falling off. At the same time, the flanging is clamped outside the dust cover to play a sealing role.

[0018] In some embodiments of the present application, several guide grooves are provided on the top surface of the flanging. The guide grooves correspond to the clamping protrusions one by one, and the guide grooves are located directly below the clamping protrusions.

[0019] In some embodiments of the present application, the clamping protrusions are located between two adjacent notches. The guide grooves are partially located directly below the notches. A convex rib is provided in the middle of the guide groove to divide the guide groove into two parts. The guide groove penetrates the outer peripheral surface of the flanging. When the dust cover is compressed, air flow will be generated and make abnormal noises. The structure of the present application reduces the abnormal noises by allowing the air flow generated when the dust cover is compressed to be discharged through the exhaust groove by adding the guide grooves.

[0020] On the basis of conforming to common knowledge in the art, the above embodiments can be combined arbitrarily. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following will further describe the present application in detail with reference to the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be used to limit the scope of the present application. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0022] Figure 1 Structural schematic of the present application Figure 1 ;

[0023] Figure 2 Structural schematic of the present application Figure 2 ;

[0024] Figure 3 This is a cross-sectional view of the present application.

[0025] Among them, the reference numerals are specifically described as follows:

[0026] 1. Housing; 2. Upper cover; 3. Guide groove; 4. Convex rib; 5. Through hole; 6. Exhaust groove; 7. Inner ring surface; 8. Outer ring surface; 9. Notch; 10. Groove; 11. Convex block; 13. Extension piece; 14. Flange; 15. Clamping projection. Specific embodiments

[0027] The following will describe the present application in detail with reference to the drawings.

[0028] In order to make the purpose, technical solution and advantages of the present application more clear and understandable, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] An anti-abnormal noise shock absorber cover, as shown in Embodiment 1 Figure 1 , Figure 2 : It includes a housing 1 and an upper cover 2 provided at the upper end of the housing 1. The top surface of the upper cover 2 is a non-planar structure, and the top surface of the upper cover 2 is a structure with the center higher than the periphery. Then, when the cover impacts with an external buffer block, the structural design of the top surface of the upper cover 2 can effectively reduce the offset generated by the impact between the buffer block and the cover, thereby increasing the service life of the product. A through hole 5 is opened at the center of the upper cover 2, and a plurality of exhaust grooves 6 are radially opened on the top surface of the upper cover 2, which effectively guides the air flow to be discharged from the exhaust grooves 6. The exhaust grooves 6 conduct the outer peripheral surface of the upper cover 2 and the through hole 5, further improving the exhaust effect of the product and guiding the air flow to be discharged smoothly.

[0030] Embodiment 2, as shown in Figures 1 to 3 : The top surface of the upper cover 2 includes an inner ring surface 7 and an outer ring surface 8. The outer ring surface 8 and the inner ring surface 7 are coaxially arranged, the outer ring surface 8 is connected to the outer periphery of the inner ring surface 7, the outer ring surface 8 is a horizontal plane, and the inner ring surface 7 is a curved surface with the center warping up. Through the optimization of the top surface structure of the upper cover 2 in the present application, the offset generated by the impact of the cover is reduced under the working environment, thereby increasing the service life of the product.

[0031] The housing 1 is a cylindrical structural member, and the upper cover 2 is an annular structural member. The upper cover 2 and the housing 1 are integrally formed. That is, the shock absorber cover in the present application is an integrally formed overall structure, which is only divided into the upper cover 2 and the housing 1 for the convenience of description.

[0032] A plurality of notches 9 are formed on the outer surface of the housing 1, and the plurality of notches 9 are arranged at equal intervals on the housing 1. A plurality of grooves 10 are provided on the bottom surface of the upper cover 2, and the grooves 10 correspond to the notches 9 one by one. Specifically, six notches 9 are provided on the housing 1 in this application, and six grooves 10 are provided on the bottom surface of the corresponding upper cover 2, which is the preferred structural solution of this application. While ensuring the structural strength of the product, this application also ensures the air flow derivation in the inner cavity of the shock absorber cover.

[0033] A convex block 11 with an overall fan-shaped ring structure is arranged between the two grooves 10. The convex block 11 is arranged in contact with the inner wall surface of the housing 1, and the convex block 11 is arranged in a stepped shape near the through hole 5. In this application, while ensuring the structural strength of the convex block 11 structure, the product is lightweight.

[0034] The convex block 11 extends an extension 13 on the inner wall surface of the housing 1. The extension 13 has a rectangular sheet structure, and the extension 13 is arranged along the axial direction of the housing 1. The arrangement of the extension 13 further improves the structural strength of the product.

[0035] Other contents of the second embodiment are the same as those of the first embodiment.

[0036] Embodiment 3, as Figures 1 to 3 shown, a flanging 14 that turns outward is provided on the bottom surface of the housing. A plurality of clamping protrusions 15 are also provided on the surface of the housing. The clamping protrusions 15 are arranged close to the flanging 14 and there is a spacing between the clamping protrusions 15 and the flanging 14.

[0037] Three clamping protrusions 15 are evenly distributed on the outer surface. The longitudinal section of the clamping protrusion 15 is triangular, and the top surface of the clamping protrusion 15 is an inclined surface.

[0038] The cover flanging 14 is used for assembling with the dust cover. Three clamping protrusions 15 are designed on the outer wall of the cover so that they are evenly distributed on the outer wall. This structure can directly clamp the cover in the dust cover during the assembly with the dust cover, strengthening the assembly effect with the dust cover and being not easy to fall off. At the same time, the flanging 14 is clamped outside the dust cover to play a sealing role.

[0039] A plurality of guide grooves 3 are provided on the top surface of the flanging 14. The guide grooves 3 correspond to the clamping protrusions 15 one by one, and the guide grooves 3 are located directly below the clamping protrusions 15.

[0040] The clamping protrusion 15 is located between two adjacent notches 9. Part of the guide groove 3 is located directly below the notch 9. A convex rib 4 is provided in the middle of the guide groove 3 to divide the guide groove 3 into two parts. The guide groove 3 penetrates the outer peripheral surface of the flanging 14. When the dust cover is compressed, air flow will be generated and make abnormal noises. The structure of this application reduces the abnormal noises by allowing the air flow generated when the dust cover is compressed to be discharged through the exhaust groove 6 by adding the guide groove 3.

[0041] Other content of Embodiment 3 is the same as that of Embodiment 1 or Embodiment 2.

[0042] The above has introduced this application in detail. Specific examples are used herein to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand this application and its core idea. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of this application, several improvements and modifications can still be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. An anti-abnormal noise shock absorber cover, characterized in that, It includes a housing (1) and an upper cover (2) provided at the upper end of the housing (1). The top surface of the upper cover (2) is a non-planar structure, with the center of the top surface of the upper cover (2) being higher than the periphery. A through hole (5) is provided at the center of the upper cover (2). A plurality of exhaust grooves (6) are radially provided on the top surface of the upper cover (2), and the exhaust grooves (6) communicate the outer peripheral surface of the upper cover (2) with the through hole (5).

2. The anti-abnormal sound shock absorber cover according to claim 1, wherein, The top surface of the upper cover (2) includes an inner ring surface (7) and an outer ring surface (8). The outer ring surface (8) and the inner ring surface (7) are coaxially arranged. The outer ring surface (8) is connected to the outer periphery of the inner ring surface (7), and the outer ring surface (8) is a horizontal plane. The inner ring surface (7) is a curved surface that warps upwards from the center.

3. The anti-abnormal noise shock absorber cover according to claim 1, wherein The housing (1) is a cylindrical structural member, and the upper cover (2) is an annular structural member. The upper cover (2) and the housing (1) are integrally formed.

4. The anti-abnormal noise shock absorber cover according to claim 1, characterized in that, A plurality of notches (9) are provided on the outer surface of the housing (1), and the plurality of notches (9) are arranged at equal intervals on the housing (1). A plurality of grooves (10) are provided on the bottom surface of the upper cover (2), and the grooves (10) correspond to the notches (9) one by one.

5. The anti-abnormal sound shock absorber cover according to claim 4, characterized in that, A convex block (11) with an overall fan-shaped ring structure is provided between two grooves (10). The convex block (11) is arranged to fit the inner wall surface of the housing (1), and the convex block (11) is provided in a stepped shape near the through hole (5).

6. The anti-abnormal sound shock absorber cover according to claim 5, characterized in that, The convex block (11) extends an extension (13) on the inner wall surface of the housing (1). The extension (13) is in a rectangular sheet structure and is arranged along the axial direction of the housing (1).

7. The anti-abnormal noise shock absorber cover according to claim 1, characterized in that A flanging (14) that turns outwards is provided on the bottom surface of the housing (1). A plurality of clamping protrusions (15) are also provided on the surface of the housing (1). The clamping protrusions (15) are arranged near the flanging (14) and there is a spacing between them and the flanging (14).

8. The anti-abnormal noise shock absorber cover according to claim 1, characterized in that, Three clamping protrusions (15) are evenly distributed on the outer surface of the housing (1). The longitudinal section of the clamping protrusion (15) is triangular, and the top surface of the clamping protrusion (15) is an inclined surface.

9. The anti-abnormal sound shock absorber cover according to claim 7, characterized in that A plurality of guide grooves (3) are provided on the top surface of the flanging (14). The guide grooves (3) correspond to the clamping protrusions (15) one by one, and the guide grooves (3) are located directly below the clamping protrusions (15).

10. A shock absorber cover for preventing abnormal noise, according to claim 9, characterized in that, The clamping protrusion (15) is located between two adjacent notches (9). Part of the guide groove (3) is located directly below the notch (9). A convex ridge (4) is provided in the middle of the guide groove (3) to divide the guide groove (3) into two parts. The guide groove (3) penetrates the outer peripheral surface of the flanging (14).

Images