A rear suspension bushing assembly

Abstract

This utility model relates to the technical field of automotive suspension system components, and provides a rear suspension buffer block assembly, including: a buffer body, and a mounting structure disposed on the surface of the buffer body. The mounting structure includes: a mounting base disposed on the bottom surface of the buffer body, and the surface of the mounting base has multiple mounting holes. This utility model allows the buffer block to be installed by connecting parts to the lower end of the shock absorber or the axle through the mounting holes on the bottom of the mounting base. Simultaneously, the buffer body is combined with the mounting base through interference fit and cold pressing. Guide posts inside the buffer body are inserted into the body hole to guide the buffer block for precise centering and installation, providing lateral bearing force and preventing shear failure due to uneven loading. Bolt threads are embedded inside the threaded holes, and shims provide adjustable preload to adapt to the installation requirements of different vehicle models, achieving preload fixation.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive suspension system components, and in particular to a rear suspension buffer block assembly. Background Technology

[0002] During vehicle operation, when a wheel encounters a significant impact, the suspension system compresses to its limit. At this point, the buffer block acts as the last elastic barrier between the shock absorber and the vehicle body, playing a crucial role in absorbing the remaining impact energy and preventing direct collisions between metal components.

[0003] In existing technology, such as Chinese patent application CN202421754478.9, a rear suspension buffer block assembly includes an arc-shaped base, a cup body, and a rubber block. The top of the base has a reinforcing hole with an upward reinforcing extension. The cup body covers the outside of the reinforcing extension, and its bottom is welded to the base. The bottom of the rubber block has a cup hole that mates with the base, and the rubber block is fixedly connected to the cup body. This invention, by incorporating a cup body in the base, adjusts the rubber material hardness to ensure low stiffness in the front section of the buffer block while simultaneously ensuring a rapid increase in stiffness in the rear section, providing an effective limiting effect. Through the design of the cup body, this invention ensures that the rubber hardness is within the optimal range for durability while meeting stiffness and limiting requirements, effectively guaranteeing the durability of the buffer block.

[0004] While the above solutions have the advantages mentioned above, they also have disadvantages: some rear suspension buffer blocks in existing equipment produce creaking noises due to friction or loosening between the buffer block and the mounting base, which is especially noticeable in low temperature or humid environments. At the same time, the impact energy is converted into heat energy and accumulates inside, accelerating material aging. Therefore, these issues need to be addressed. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art: some rear suspension buffer blocks in existing equipment produce creaking noise due to friction or loosening between the buffer block and the mounting seat, which is more obvious in low temperature or humid environments. At the same time, the impact energy is converted into heat energy and accumulates inside, accelerating the aging of the material.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rear suspension buffer block assembly, comprising: a buffer body, the rear suspension buffer block assembly further comprising:

[0007] An mounting structure is disposed on the surface of the buffer body, the mounting structure comprising:

[0008] A mounting base is disposed on the bottom surface of the buffer body, and the surface of the mounting base is provided with multiple mounting holes;

[0009] A heat dissipation structure is disposed on the surface of the buffer body, the heat dissipation structure comprising:

[0010] Multiple sets of heat dissipation holes are formed on the outer surface of the buffer body, and the multiple sets of heat dissipation holes are composed of multiple slots.

[0011] Preferably, the mounting structure further includes:

[0012] The guide post is vertically installed in the central through hole of the buffer body, wherein the lower end of the guide post is fixedly installed inside the buffer body, and the upper end extends out of the buffer body.

[0013] The technical effect of adopting the above-mentioned further solution is that by inserting the guide post inside the buffer body into the vehicle body mounting hole, the buffer block is guided to be precisely centered and installed, and lateral bearing force is provided to prevent shear failure caused by off-center loading.

[0014] Preferably, the mounting structure further includes:

[0015] A threaded hole is formed on the surface of the guide post, and a bolt is embedded in the internal thread of the threaded hole.

[0016] The technical advantage of adopting the above-mentioned further solution is that the bolts are positioned and installed through the threaded holes inside the guide post.

[0017] Preferably, the mounting structure further includes:

[0018] A gasket is placed between the head of the bolt and the vehicle body.

[0019] The technical advantage of adopting the above-mentioned further solution is that it provides adjustable preload through the use of shims and bolts, adapting to the installation requirements of different vehicle models.

[0020] Preferably, the heat dissipation structure further includes:

[0021] Multiple sets of connecting channels are formed around the interior of the buffer body, and these connecting channels connect to multiple sets of heat dissipation holes.

[0022] The technical effect of adopting the above-mentioned further solution is that the heat dissipation holes are connected through the connecting channels inside the buffer body, which facilitates the conduction and discharge of heat.

[0023] Preferably, the heat dissipation structure further includes:

[0024] A dust cover is provided on the upper part of the buffer body, wherein the upper end of the dust cover wraps around the root of the guide post.

[0025] The technical effects of adopting the above-mentioned further solution are: by covering the dust cover on the surface of the buffer body with a sleeve at the root of the guide column, mud, sand, water and oil stains are prevented from entering the interior of the buffer block, reducing the erosion of the elastic material by the external environment; and reducing frictional noise during the compression process.

[0026] Preferably, the lower end of the dust cover is fixed to the outer surface of the buffer body by a clamp or buckle, and the lower end of the dust cover is positioned above the connecting hole.

[0027] The technical advantage of adopting the above-mentioned further solution is that by setting the dust cover above the connecting holes on the surface of the buffer body, heat dissipation is facilitated.

[0028] Preferably, the heat dissipation structure further includes:

[0029] A damping layer is disposed between the buffer body and the mounting base, wherein the damping layer is a high-damping rubber or viscoelastic material.

[0030] The technical effect of adopting the above-mentioned further solution is that the damping layer between the buffer body and the mounting base absorbs high-frequency vibrations, suppresses resonance, and reduces abnormal noises.

[0031] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0032] 1. In this utility model, the mounting parts are installed by connecting the lower end of the shock absorber or the axle through the mounting holes opened at the bottom of the mounting base. At the same time, the buffer body is combined with the mounting base through interference fit and cold pressing. The guide post inside the buffer body is inserted into the body hole to guide the buffer block to be accurately centered and installed, and to provide lateral bearing force to prevent shear failure caused by off-center load. The bolt thread is embedded in the threaded hole, and the shim provides adjustable preload force to adapt to the installation requirements of different vehicle models and achieve preload fixation.

[0033] 2. In this utility model, a damping layer is set between the buffer body and the mounting base to absorb high-frequency vibration, suppress resonance, and reduce abnormal noise. In conjunction with a dust cover fitted on the surface of the guide column and covering the entire surface of the buffer body, it prevents mud, sand, water, and oil from penetrating into the buffer block and reduces the erosion of the elastic material by the external environment. It also reduces frictional noise during compression and the connecting holes inside the buffer body connect to the heat dissipation holes to facilitate heat conduction and discharge, thereby improving service life. Attached Figure Description

[0034] Figure 1 This utility model provides a side view structural diagram of a rear suspension buffer block assembly;

[0035] Figure 2 This utility model provides a schematic diagram of the unfolded structure of a rear suspension buffer block assembly;

[0036] Figure 3 This utility model provides a cross-sectional structural schematic diagram of a rear suspension buffer block assembly;

[0037] Figure 4 This utility model proposes a rear suspension buffer block assembly. Figure 3 Enlarged structural diagram at point A in the middle.

[0038] Legend:

[0039] 1. Buffer body; 101. Mounting base; 1011. Mounting hole; 102. Heat dissipation hole; 1021. Connection channel; 103. Guide post; 1031. Threaded hole; 104. Dust cover; 105. Bolt; 1051. Gasket; 106. Damping layer. Detailed Implementation

[0040] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0042] Example 1, as Figure 1-4 As shown, the rear suspension buffer block assembly includes a mounting structure disposed on the surface of the buffer body 1. The mounting structure includes a mounting base 101, which is fixedly disposed on the bottom surface of the buffer body 1. The base 101 has a plurality of mounting holes 1011 evenly distributed in the circumferential direction on its surface for auxiliary connection with the shock absorber or axle by means of auxiliary screws.

[0043] The guide post 103 is vertically installed in the central through hole of the buffer body 1. Its lower end is fixed to the inside of the buffer body 1 by interference fit and adhesive, and its upper end extends out of the buffer body 1. The threaded hole 1031 is opened axially on the upper surface of the guide post 103, and a bolt 105 is connected to it internally by thread. The gasket 1051 is set between the head of the bolt 105 and the vehicle body mounting surface to distribute the load evenly and prevent the bolt 105 from loosening. This mounting structure achieves precise centering and positioning of the buffer block through the guide post 103, and achieves high-strength pre-tightening connection through the cooperation of the bolt 105 and the gasket 1051. At the same time, the mounting base 101 and its mounting hole 1011 provide auxiliary fixing, forming a dual fixing mode of main connection and auxiliary connection. This significantly improves the connection stability and anti-loosening ability of the buffer block assembly under dynamic load, and effectively avoids abnormal noise, displacement or failure caused by loose installation.

[0044] In this embodiment, the mounting base 101 is installed through the mounting hole 1011 at the bottom, which is connected to the lower end of the shock absorber or the axle. At the same time, the buffer body 1 is combined with the mounting base 101 through interference fit and cold pressing. The guide post 103 inside the buffer body 1 is used to insert into the body hole, guide the buffer block to be accurately centered and installed, and provide lateral bearing force to prevent shear failure caused by off-center load. The bolt 105 is threaded into the threaded hole 1031, and the gasket 1051 provides an adjustable preload to adapt to the installation requirements of different vehicle models and achieve preload fixation.

[0045] Example 2, as Figure 1-4 As shown, the rear suspension buffer block assembly also includes a heat dissipation structure disposed on the surface of the buffer body 1. The heat dissipation structure includes: multiple sets of heat dissipation holes 102, which are opened on the outer peripheral surface of the buffer body 1. Each set consists of multiple axial slots to increase the heat dissipation surface area and guide airflow; and multiple sets of connecting channels 1021, which surround the upper part of the buffer body 1 and communicate with the multiple sets of heat dissipation holes 102 to form an internal ventilation network, so that the heat accumulated inside the buffer body 1 can be discharged through air convection.

[0046] The dust cover 104 covers the upper part of the buffer body 1, with its upper end wrapping around the root of the guide column 103 and its lower end fixed to the outer surface of the buffer body 1 by clamps or buckles. The lower end is higher than the connecting channel 1021, forming an airflow structure that is sealed at the top and ventilated at the bottom. This structure can effectively prevent dust and water damage and guide external airflow to enhance internal heat dissipation. The damping layer 106 is located between the buffer body 1 and the mounting base 101. It is made of high-damping rubber or viscoelastic material and is used to absorb high-frequency vibration energy, suppress resonance, and reduce abnormal noise. This heat dissipation structure forms a three-dimensional ventilation network through the external heat dissipation holes 102 and the internal connecting channel 1021. Combined with the airflow guiding function of the dust cover 104, it achieves efficient active heat dissipation. At the same time, the damping layer 106 improves the vibration reduction performance and effectively solves the problems of aging, sudden stiffness change, and shortened lifespan caused by heat accumulation in traditional buffer blocks.

[0047] In this embodiment, the damping layer 106 provided between the buffer body 1 and the mounting base 101 absorbs high-frequency vibrations, suppresses resonance, and reduces abnormal noise. In conjunction with the dust cover 104, which is sleeved on the surface of the guide post 103 and covers the entire surface of the buffer body 1, it prevents mud, sand, water, and oil from penetrating into the buffer block and reduces the erosion of the elastic material by the external environment. It also reduces frictional noise during compression and connects the heat dissipation hole 102 through the connecting channel 1021 inside the buffer body 1 to facilitate heat dissipation and discharge, thereby improving service life.

[0048] Working principle: During use, the parts are installed through the mounting holes 1011 at the bottom of the mounting base 101, which are connected to the lower end of the shock absorber or the axle. Simultaneously, the buffer body 1 is joined to the mounting base 101 via an interference fit and cold pressing. The guide post 103 inside the buffer body 1 is inserted into the body hole to guide the buffer block for precise centering and installation, providing lateral load-bearing force and preventing shear failure due to off-center loading. The bolt 105 is threaded into the threaded hole 1031, and the washer 1051 provides adjustable preload to adapt to different vehicle models. To meet installation requirements and achieve pre-tightening fixation, a damping layer 106 is provided between the buffer body 1 and the mounting base 101 to absorb high-frequency vibrations, suppress resonance, and reduce abnormal noise. In conjunction with a dust cover 104, which is fitted onto the surface of the guide post 103 and covers the entire surface of the buffer body 1, it prevents mud, sand, water, and oil from penetrating the interior of the buffer block and reduces the erosion of the elastic material by the external environment. It also reduces frictional noise during compression and connects to the heat dissipation holes 102 through the connecting channel 1021 inside the buffer body 1 to facilitate heat dissipation and exhaust, thereby improving service life.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A rear suspension bushing assembly, comprising: The buffer body (1) is characterized in that the rear suspension buffer block assembly further includes: An mounting structure is disposed on the surface of the buffer body (1), the mounting structure comprising: A mounting base (101) is disposed on the bottom surface of the buffer body (1), and the surface of the mounting base (101) is provided with a plurality of mounting holes (1011); A heat dissipation structure is disposed on the surface of the buffer body (1), the heat dissipation structure comprising: Multiple sets of heat dissipation holes (102) are formed on the outer surface of the buffer body (1), and the multiple sets of heat dissipation holes (102) are composed of multiple slots.

2. A rear suspension bushing assembly as in claim 1, wherein: The mounting structure also includes: The guide post (103) is vertically installed in the central through hole of the buffer body (1), wherein the lower end of the guide post (103) is fixedly installed inside the buffer body (1), and the upper end extends out of the buffer body (1).

3. A rear suspension bushing assembly as in claim 2, wherein: The mounting structure also includes: A threaded hole (1031) is formed on the surface of the guide post (103), and a bolt (105) is embedded in the internal thread of the threaded hole (1031).

4. A rear suspension bushing assembly as in claim 3, wherein: The mounting structure also includes: A gasket (1051) is disposed between the head of the bolt (105) and the vehicle body.

5. A rear suspension bushing assembly as in claim 1, wherein: The heat dissipation structure also includes: Multiple sets of connecting channels (1021) are formed around the interior of the buffer body (1), and the multiple sets of connecting channels (1021) are connected to multiple sets of heat dissipation holes (102).

6. A rear suspension bushing assembly as in claim 5, wherein: The heat dissipation structure also includes: A dust cover (104) is provided on the upper part of the buffer body (1), wherein the upper end of the dust cover (104) wraps around the root of the guide post (103).

7. A rear suspension bushing assembly as in claim 6, wherein: The lower end of the dust cover (104) is fixed to the outer surface of the buffer body (1) by a clamp or buckle, and the lower end of the dust cover (104) is positioned above the connecting channel (1021).

8. A rear suspension bushing assembly as in claim 7, wherein: The heat dissipation structure also includes: A damping layer (106) is disposed between the buffer body (1) and the mounting base (101), wherein the damping layer (106) is a high-damping rubber or a viscoelastic material.

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