A soundproofing mass for a vehicle body

Abstract

The utility model belongs to the automobile parts manufacturing technical field, specifically, the utility model relates to a car body sound insulation rubber block, a car body sound insulation rubber block is arranged in the car body cavity, includes the installation framework, is provided with the expansion rubber block on the installation framework, through adopting double -deck expansion rubber block, the air sandwich of two expansion rubber blocks forms the sound bridge partition, multiple blocking sound propagation path. When the sound spreads between the expansion rubber block, first fixed plate cavity, through many times, absorbs, greatly weakens the sound energy, compares the traditional sound insulation rubber block, effectively has promoted the sound insulation effect in the car body cavity, creates the tranquil and comfortable driving environment in the car.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts manufacturing technology. Specifically, this utility model relates to a sound insulation block for a car body. Background Technology

[0002] Currently, in the field of automotive body sound insulation, ordinary sound insulation blocks are widely used for soundproofing vehicle cavities. These blocks typically employ a single-layer design, with the internal foam only distributed in the peripheral area. Furthermore, this foam uses a low-sound-absorbing formula, failing to effectively absorb sound waves. When external sound enters the vehicle's cavities, these ordinary sound insulation blocks, due to their structural and material limitations, struggle to efficiently absorb and block the sound. The sound insulation of these blocks is only greater than 25dB, offering little improvement to the overall vehicle sound insulation and failing to meet the growing demand from car owners for a quieter in-car environment.

[0003] Chinese patent (publication number: 204279286U) discloses a car body sound insulation panel and a car. The car body sound insulation panel consists of a panel body and mounting clips, which are integrally molded in one piece using an injection molding process. However, the sound insulation effect of this car body sound insulation panel and the car as a whole is not good. Utility Model Content

[0004] This utility model is designed to solve the above-mentioned problems and aims to provide a car body sound insulation block with better sound insulation effect. To achieve the above objective, the technical solution adopted by this utility model is as follows: a car body sound insulation block, which is set in the cavity of the car body, including a mounting frame, on which an expansion block is provided.

[0005] The mounting frame includes a base plate, with first fixing plates at both ends of the base plate. A fixing structure is provided on the first fixing plate, and the expansion rubber block is connected to the fixing structure.

[0006] The fixing structure includes a second fixing plate that penetrates the expansion rubber block. A clamping plate is provided at one end of the second fixing plate, and the clamping plate abuts against the expansion rubber block.

[0007] A connecting plate is provided on the base plate, and the connecting plate is connected to the first fixing plate.

[0008] The bottom end of the base plate is provided with an integrated nylon buckle, which includes a fixing post and a rubber plug on the fixing post.

[0009] The base plate, the first fixing plate, the second fixing plate, the clamping plate, the connecting plate, and the fixing column are integrally formed.

[0010] The first fixing plate is provided with a structural reinforcing plate.

[0011] A tapered column is provided at one end of the fixed column.

[0012] The technical advantages of this invention are as follows: By employing double-layered expanding rubber blocks, the air gap between the two blocks forms a sound bridge, effectively blocking multiple sound propagation paths. When sound propagates between the expanding rubber blocks and the cavity of the first fixed plate, it undergoes multiple absorption processes, significantly reducing sound energy. Compared to traditional sound insulation blocks, this effectively improves the sound insulation effect within the vehicle body cavity, creating a quiet and comfortable driving environment. Attached Figure Description

[0013] This manual includes the following figures, which illustrate the following:

[0014] Figure 1 This is a structural diagram of a vehicle body sound insulation block according to the present invention.

[0015] The markings in the diagram are as follows: 1. Installation frame; 101. Base plate; 102. First fixing plate; 2. Fixing structure; 201. Second fixing plate; 202. Clamping plate; 3. Connecting plate; 4. Fixing column; 5. Rubber plug; 6. Structural reinforcing plate; 7. Expansion block; 8. Conical column. Detailed Implementation

[0016] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0017] like Figure 1 As shown, a vehicle body sound insulation block is installed inside a vehicle body cavity, including a mounting frame 1, on which expansion blocks 7 are mounted. The mounting frame 1 is the main body of the entire vehicle body sound insulation block, connected to the vehicle body cavity. The expansion blocks 7 are located at both ends of the mounting frame 1. Sound travels from the expansion blocks 7 to the cavity of the sound insulation mounting frame 1 and back to the expansion blocks 7. The use of double-layer sound insulation expansion blocks 7 results in better sound insulation. By setting up double-layer expansion blocks 7, the air gap between the two expansion blocks 7 forms a sound bridge, and the high sound insulation mounting frame 1 further enhances the sound insulation effect within the vehicle body cavity.

[0018] The mounting frame 1 includes a base plate 101, with first fixing plates 102 at both ends of the base plate 101. Fixing structures 2 are mounted on the first fixing plates 102, and expansion blocks 7 are connected to the fixing structures 2. The base plate 101 is the main body of the mounting frame 1. The first fixing plates 102 at both ends of the base plate 101 are used to connect the expansion blocks 7. The fixing structures 2 fix the expansion blocks 7, forming a double-layer sound-insulating expansion block 7. The air gap between the two expansion blocks 7 forms a sound bridge partition, resulting in better sound insulation from the cavity partition.

[0019] The fixing structure 2 includes a second fixing plate 201, which penetrates the expansion block 7. A retaining plate 202 is provided at one end of the second fixing plate 201, abutting against the expansion block 7. The second fixing plate 201 provides through support to the expansion block 7; the retaining plate 202 abuts against the expansion block 7, restricting its movement and ensuring that the expansion block 7 does not shift when performing its sound insulation function, thereby guaranteeing the stability of the sound insulation effect.

[0020] A connecting plate 3 is provided on the base plate 101, and the connecting plate 3 is connected to the first fixing plate 102. The connecting plate 3 is connected to the base plate 101 and to the first fixing plate 102. It can further enhance the structural strength and stability of the mounting frame 1, effectively disperse and transmit the stress from the vehicle body, improve the deformation resistance of the entire sound insulation block, and ensure that the sound insulation block can still maintain a good working condition in complex vehicle body environments.

[0021] An integrated nylon clip is provided at the bottom of the base plate 101. The integrated nylon clip includes a fixing post 4, on which a rubber plug 5 is mounted. The fixing post 4 is located at the bottom of the base plate 101. When the fixing post 4 is inserted into a pre-set mounting hole in the vehicle body cavity, the rubber plug 5 makes tight contact with the inner wall of the mounting hole, achieving a stable connection between the sound insulation block and the vehicle body. During vehicle operation, the rubber plug 5 effectively buffers vibrations transmitted from the vehicle body while sealing the connection point to reduce sound leakage. The fixing post 4 firmly secures the sound insulation block, keeping it in the correct working position. The integrated nylon clip structure results in higher strength and greater structural stability.

[0022] The base plate 101, the first fixing plate 102, the second fixing plate 201, the clamping plate 202, the connecting plate 3, and the fixing column 4 are integrally molded structures. This integral molding structure avoids the stress concentration and weak connection points caused by welding, riveting, and other processes in traditional splicing methods. The integral molding structure forms an inseparable whole, maintaining a firm connection throughout the long-term operation of the vehicle, ensuring the structural stability of the vehicle body sound insulation blocks, and enabling them to work reliably even in harsh operating environments.

[0023] A structural reinforcing plate 6 is provided on the first fixing plate 102. The structural reinforcing plate 6 can improve the strength and rigidity of the first fixing plate 102 in the vertical direction and improve its resistance to deformation. Especially when the vehicle encounters large vibrations or external impacts during driving, the structural reinforcing plate 6 can effectively prevent the first fixing plate 102 from bending or deforming.

[0024] One end of the fixing post 4 is provided with a tapered post 8. When installing the sound insulation block, the fixing post 4 with the tapered post 8 is aligned with the mounting hole of the vehicle body cavity. The shape of the tapered post 8 can guide the fixing post 4 to be smoothly inserted into the mounting hole.

[0025] The role and effect of the embodiments

[0026] By employing double-layered expansion blocks 7, the air gap between the two expansion blocks 7 forms a sound bridge barrier, blocking the sound propagation path in multiple ways. When sound propagates between the expansion blocks 7 and the cavity of the first fixing plate 102, it is absorbed multiple times, significantly weakening the sound energy. Compared with traditional sound insulation blocks, this effectively improves the sound insulation effect in the vehicle body cavity, creating a quiet and comfortable driving environment inside the vehicle.

[0027] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A sound-insulating rubber block for vehicle bodies, disposed within a cavity of the vehicle body, characterized in that, Includes a mounting frame (1), on which an expansion rubber block (7) is provided; The mounting frame (1) includes a base plate (101), and a first fixing plate (102) is provided at both ends of the base plate (101). A fixing structure (2) is provided on the first fixing plate (102), and the expansion rubber block (7) is connected to the fixing structure (2). The fixing structure (2) includes a second fixing plate (201), which penetrates the expansion block (7). A clamping plate (202) is provided at one end of the second fixing plate (201), and the clamping plate (202) abuts against the expansion block (7).

2. The vehicle body sound insulation block according to claim 1, characterized in that: A connecting plate (3) is provided on the base plate (101), and the connecting plate (3) is connected to the first fixing plate (102).

3. The vehicle body sound insulation block according to claim 2, characterized in that: The bottom end of the base plate (101) is provided with an integrated nylon buckle, which includes a fixing post (4) and a rubber plug (5) on the fixing post (4).

4. The vehicle body sound insulation block according to claim 3, characterized in that: The base plate (101), the first fixing plate (102), the second fixing plate (201), the clamping plate (202), the connecting plate (3), and the fixing column (4) are integrally formed structures.

5. The vehicle body sound insulation block according to claim 1, characterized in that: The first fixing plate (102) is provided with a structural reinforcing plate (6).

6. The vehicle body sound insulation block according to claim 3, characterized in that: A tapered column (8) is provided at one end of the fixed column (4).

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