Rubber bushing and suspension assembly

Abstract

The rubber bushing comprises a bushing body, a mounting through hole is formed in the center of the bushing body, and at least one circle of convex hull structure is arranged on the inner wall of the mounting through hole; the end faces of the two ends of the lining body are sunken in the height direction of the lining body to form a plurality of V-shaped first damping grooves, hexagonal damping holes are formed in the bottoms of the first damping grooves, and the end protrusions between the adjacent first damping grooves are sunken to form V-shaped second damping grooves. The utility model has the advantages that through the arrangement of the convex hull structure, the mounting through hole is in interference fit with the outer wall of the metal lining mounted in the later period, so that the friction force between the mounting through hole and the metal lining is increased, and the metal lining is prevented from falling off; through the arrangement of the hexagonal damping holes, the two elastic parts are more stable and not prone to deformation relative to the structure of the circular damping holes, the rubber bushing has excellent compression resistance, tensile strength and shear resistance strength, and the damping effect of the rubber bushing is improved.

Description

Technical Field

[0001] This utility model relates to the field of air suspension technology, specifically to a rubber bushing and suspension assembly. Background Technology

[0002] With the continuous development and advancement of automotive technology, air suspension is increasingly being incorporated into newer vehicles. The air supply unit, as an indispensable part of the air suspension, has a significant impact on the overall vehicle performance. The suspension mounts are a crucial component of the air supply unit, playing a key role in vibration damping. They effectively reduce the vibration of the air supply unit, thereby improving its performance.

[0003] Suspension components are generally composed of rubber bushings and metal bushings. Currently, the one-piece rubber bushing has a circular opening structure, which is unstable and easily deformed during vibration reduction, resulting in poor vibration reduction effect. In addition, the metal bushing is easily detached during transportation due to compression. Utility Model Content

[0004] The technical problem to be solved by this utility model is how to improve the shock absorption effect of the bushing and prevent the metal bushing from falling off.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A rubber bushing includes a bushing body with a central mounting through hole. The inner wall of the mounting through hole has at least one ring of convex structures. Multiple V-shaped first damping grooves are recessed at both ends of the bushing body along its height direction. The two inner walls of the first damping grooves are symmetrically arranged along the radial direction of the bushing body. A hexagonal damping hole is provided at the bottom of the first damping groove. A V-shaped second damping groove is formed at the end protrusion between adjacent first damping grooves. The two inner walls of the second damping grooves are symmetrically arranged along the circumferential direction of the bushing body.

[0007] The convex bulge structure creates an interference fit between the mounting through hole and the outer wall of the subsequently installed metal bushing, increasing friction with the metal bushing and thus securing it firmly. This provides strong stability and prevents the metal bushing from falling off. The hexagonal damping holes make the two elastic parts more stable and less prone to deformation compared to the circular damping holes, giving the rubber bushing excellent compressive, tensile, and shear strength, thereby improving its damping effect.

[0008] Preferably, the first damping groove, the hexagonal damping hole, and the second damping groove are all arranged at intervals along the circumference of the bushing body.

[0009] Preferably, the bushing body includes a first elastic portion and a second elastic portion disposed along its height direction. The first elastic portion and the second elastic portion are arranged at intervals to form an annular groove. The first damping groove, the hexagonal damping hole, and the second damping groove are disposed on the end faces opposite to the first elastic portion and the second elastic portion. The mounting through hole penetrates the first elastic portion and the second elastic portion.

[0010] Preferably, the convex hull structure is arranged in two parallel rings, respectively disposed on the inner wall of the mounting through hole of the first elastic part and the second elastic part.

[0011] Preferably, a suspension assembly is also provided, including the rubber bushing and the metal bushing described above, wherein the rubber bushing is sleeved on the metal bushing.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By using a convex hull structure, the mounting through hole forms an interference fit with the outer wall of the metal bushing to be installed later, increasing the friction with the metal bushing and thus securing the metal bushing. The structure is simple, highly stable, and prevents the metal bushing from falling off.

[0014] The hexagonal damping holes make the two elastic parts more stable and less prone to deformation compared to the circular damping holes. This results in excellent compressive, tensile, and shear strength for the rubber bushing, improving its overall performance and making it suitable for environments requiring load-bearing and vibration resistance. Simultaneously, the multiple hexagonal damping holes also provide good sound insulation, effectively reducing sound transmission. Furthermore, the hexagonal holes are easy to cut, bend, and shape, facilitating processing into various shapes and sizes to meet the needs of different applications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0016] Figure 2 This is a top view of an embodiment of the present utility model;

[0017] Figure 3 This is a cross-sectional view of an embodiment of the present utility model. Detailed Implementation

[0018] To facilitate understanding of the technical solution of this utility model by those skilled in the art, the technical solution of this utility model will now be further described in conjunction with the accompanying drawings.

[0019] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] In this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying contradictory importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically limited.

[0021] See Figures 1 to 3 This embodiment discloses a rubber bushing, including a bushing body 1. The bushing body 1 includes a first elastic part 11 and a second elastic part 12 arranged along its height direction. The first elastic part 11 and the second elastic part 12 are arranged at intervals to form an annular groove 13. The top wall of the annular groove 13 is the bottom wall of the first elastic part 11, and the bottom wall of the annular groove 13 is the top wall of the second elastic part 12. The annular groove 13 is used to hold an external bracket.

[0022] The bushing body 1 has a mounting through hole 101 at its center, penetrating the first elastic part 11 and the second elastic part 12. Two rings of convex structures 14 are arranged parallel to each other on the inner wall of the mounting through hole 101. The two rings of convex structures 14 are respectively arranged on the inner wall of the mounting through hole 101 of the first elastic part 11 and the second elastic part 12. Through the setting of the convex structures 14, the mounting through hole 101 forms an interference fit with the outer wall of the metal bushing to be installed later, increasing the friction with the metal bushing, thereby fastening the metal bushing. The structure is simple, has strong stability, and prevents the metal bushing from falling off.

[0023] Multiple V-shaped first damping grooves 102 are recessed along the height direction of the bushing body 1 on the opposite end faces of the first elastic part 11 and the second elastic part 12. The two inner walls of the first damping groove 102 are symmetrically arranged along the radial direction of the bushing body 1. A hexagonal damping hole 103 is provided at the bottom of the first damping groove 102. A V-shaped second damping groove 104 is formed at the end protrusion between adjacent first damping grooves 102. The two inner walls of the second damping groove 104 are symmetrically arranged along the circumferential direction of the bushing body 1.

[0024] Specifically, the hexagonal damping holes 103 make the two elastic parts more stable and less prone to deformation compared to the circular damping holes, giving the rubber bushing excellent compressive, tensile, and shear strength, improving its damping effect, and making it suitable for environments subjected to loads and vibration. Simultaneously, the multiple hexagonal damping holes 103 also provide good sound insulation, effectively reducing sound transmission. Furthermore, the hexagonal holes are easy to cut, bend, and shape, facilitating processing into various shapes and sizes to meet the needs of different application scenarios.

[0025] The first damping groove 102, the hexagonal damping hole 103 and the second damping groove 104 are all arranged at intervals along the circumference of the bushing body 1.

[0026] Furthermore, this embodiment also provides a suspension assembly, including the rubber bushing and the metal bushing described above, wherein the rubber bushing is sleeved on the metal bushing.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] The above-described embodiments are merely examples of implementation methods of the utility model. The scope of protection of this utility model is not limited to the above-described embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the scope of protection of this utility model.

Claims

1. A rubber bushing, characterized in that: The device includes a bushing body with a central mounting through hole. The inner wall of the mounting through hole has at least one ring of protruding structure. Multiple V-shaped first damping grooves are recessed at both ends of the bushing body along its height direction. The two inner walls of the first damping grooves are symmetrically arranged along the radial direction of the bushing body. A hexagonal damping hole is provided at the bottom of the first damping groove. A V-shaped second damping groove is formed at the end protrusion between adjacent first damping grooves. The two inner walls of the second damping grooves are symmetrically arranged along the circumferential direction of the bushing body.

2. The rubber bushing according to claim 1, characterized in that: The first damping groove, the hexagonal damping hole, and the second damping groove are all arranged at intervals along the circumference of the bushing body.

3. A rubber bushing according to claim 1, characterized in that: The bushing body includes a first elastic part and a second elastic part arranged along its height direction. The first elastic part and the second elastic part are spaced apart to form an annular groove. The first damping groove, the hexagonal damping hole and the second damping groove are arranged on the end faces opposite to the first elastic part and the second elastic part. The mounting through hole passes through the first elastic part and the second elastic part.

4. A rubber bushing according to claim 3, characterized in that: The convex hull structure is arranged in two parallel rings, respectively on the inner wall of the mounting through hole of the first elastic part and the second elastic part.

5. A suspension assembly, characterized in that: It includes a rubber bushing as described in any one of claims 1 to 4 and a metal bushing, wherein the rubber bushing is fitted onto the metal bushing.

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