Sound insulation liner

Abstract

The utility model relates to the technical field of gaskets, in particular to a sound insulation gasket which comprises a bottom layer, an installation groove is formed in the base face of the bottom layer, a sound insulation layer is installed on the base face of the bottom layer, corrugated grooves are formed in the outer wall of the sound insulation layer, a supporting plate is installed on the outer wall of the sound insulation layer, and a diaphragm is installed on the outer wall of the supporting plate. According to the utility model, through the arrangement of the polycarbonate buffer layer, the impact on the device is better relieved, the completeness of the supporting plate is ensured, meanwhile, the sound insulation layer on the outer wall of the supporting plate is not easily influenced by the impact, the sound insulation effect of the device is ensured, and the service life of the device is prolonged. When external noise of an engine and the like is conducted to the bottom layer, sound waves are refracted and offset in the inner cavities of the corrugated grooves, the noise reduction effect is achieved, and the sound insulation effect of the device is better.

Description

Technical Field

[0001] The utility model relates to the technical field of pads, in particular to a sound insulation pad. Background Art

[0002] Existing car front panels, floor tunnels, lower seats, luggage compartments, wheel arch interiors and other parts all need to be installed with pads to play the role of sound insulation, sound absorption and heat insulation. These pads are generally located between metal parts and car interior decoration parts, such as between metal floors and carpets, between metal front panels and foot pads, between metal plates and wheel fenders, etc., to block the noise from the engine, wheels, etc. when the car is running, and further isolate the heat transmitted by the engine. The existing sound insulation pads in the interior cavity of the car's driving and trunk will cause the sound insulation effect to deteriorate if they are damaged by external forces during use. The pads are mainly for sound insulation effect, and do not improve its impact and wear resistance, and are less practical.

[0003] Therefore, a sound insulation pad is needed to improve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a sound insulation pad to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sound insulation pad comprises a bottom layer, a base surface of the bottom layer is provided with an installation groove, a sound insulation layer is installed on the base surface of the bottom layer, an outer wall of the sound insulation layer is provided with a corrugated groove, a support plate is installed on the outer wall of the sound insulation layer, a diaphragm is installed on the outer wall of the support plate, a buffer layer is installed on the outer wall of the diaphragm, and a wear-resistant layer is installed on the outer wall of the buffer layer.

[0007] As a preferred solution of the utility model, the installation grooves are provided in multiple groups and are respectively located on the base surface of the bottom layer.

[0008] As a preferred solution of the utility model, the corrugated grooves are provided in multiple groups and are respectively located on the outer wall of the sound insulation layer.

[0009] As a preferred solution of the utility model, the connection mode of the corrugated groove and the mounting groove is a plug-in connection, and the material of the sound insulation layer is a polystyrene foam plastic material.

[0010] As a preferred solution of the utility model, the material of the support plate is high-density fiberboard, and the material of the diaphragm is polyvinyl chloride plastic film.

[0011] As a preferred solution of the utility model, the material of the buffer layer is polycarbonate material, and the material of the wear-resistant layer is aluminum oxide ceramic material.

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

[0013] 1. In the utility model, the buffer layer in the sound insulation pad and the buffer layer of polycarbonate are used to better mitigate the impact on the device, thereby ensuring the integrity of the support plate. At the same time, the sound insulation layer on the outer wall of the support plate is not easily affected by the impact, thereby ensuring the sound insulation effect of the device. When the external noise such as the engine is transmitted to the bottom layer, the sound waves are refracted and offset in the inner cavity of the corrugated groove, which has a noise reduction effect. The sound insulation effect of the device is better, which is beneficial to solve the problem that if the sound insulation effect is damaged by external force during use, it will deteriorate. The pad is mainly for the sound insulation effect, and does not improve its impact and wear resistance function, and has poor practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a side view of the structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the corrugated groove structure of the utility model.

[0017] In the figure: 1. bottom layer; 2. mounting groove; 3. sound insulation layer; 4. corrugated groove; 5. support plate; 6. diaphragm; 7. buffer layer; 8. wear-resistant layer. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0022] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0023] A sound insulation pad comprises a bottom layer 1, a mounting groove 2 is provided on the base surface of the bottom layer 1, a sound insulation layer 3 is installed on the base surface of the bottom layer 1, a corrugated groove 4 is provided on the outer wall of the sound insulation layer 3, a support plate 5 is installed on the outer wall of the sound insulation layer 3, a diaphragm 6 is installed on the outer wall of the support plate 5, a buffer layer 7 is installed on the outer wall of the diaphragm 6, and a wear-resistant layer 8 is installed on the outer wall of the buffer layer 7.

[0024] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 3 There are multiple groups of mounting grooves 2 and they are respectively located on the base surface of the bottom layer 1, there are multiple groups of corrugated grooves 4 and they are respectively located on the outer wall of the sound insulation layer 3, the connection method of the corrugated grooves 4 and the mounting grooves 2 is plug-in connection, the sound insulation layer 3 is made of polystyrene foam plastic material, the support plate 5 is made of high-density fiberboard, the diaphragm 6 is made of polyvinyl chloride plastic film, the buffer layer 7 is made of polycarbonate material, and the wear-resistant layer 8 is made of aluminum oxide ceramic material.

[0025] Furthermore, the bottom layer 1, the sound insulation layer 3, the support plate 5, the diaphragm 6, the buffer layer 7 and the wear-resistant layer 8 are installed with each other by bonding and melting, and then pressed to make the connection tighter and improve the stability of the device. A protrusion is provided on the base surface of the support plate 5 to increase the contact area between the support plate 5 and the diaphragm 6, so that the connection of the diaphragm 6 is more stable.

[0026] The working process of the utility model: when the sound insulation pad designed by the present invention is working, a support plate 5 is installed on the outer wall of the sound insulation layer 3, a diaphragm 6 is installed on the outer wall of the support plate 5, a buffer layer 7 is installed on the outer wall of the diaphragm 6, and a wear-resistant layer 8 is installed on the outer wall of the buffer layer 7. The material of the support plate 5 is a high-density fiberboard, the material of the diaphragm 6 is a polyvinyl chloride plastic film, the material of the buffer layer 7 is a polycarbonate material, and the material of the wear-resistant layer 8 is an aluminum oxide ceramic material. When the outside world impacts the wear-resistant layer 8, the polycarbonate buffer layer 7 better mitigates the impact on the device, thereby ensuring the integrity of the support plate 5. At the same time, the sound insulation on the outer wall of the support plate 5 Layer 3 is not easily affected by impact, which ensures the sound insulation effect of the device. At the same time, multiple groups of installation grooves 2 are opened and are respectively located on the base surface of the bottom layer 1, and multiple groups of corrugated grooves 4 are opened and are respectively located on the outer wall of the sound insulation layer 3. The connection method of the corrugated grooves 4 and the installation grooves 2 is plug-in connection. When the external noise such as the engine is transmitted to the bottom layer 1, the sound waves are refracted and offset in the inner cavity of the corrugated grooves 4, which has a noise reduction effect. The sound insulation effect of the device is better, which is beneficial to solve the problem that if it is damaged by external force during use, the sound insulation effect will be deteriorated. The gasket is mainly for the sound insulation effect, and does not improve its impact and wear resistance, and its practicality is poor.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sound insulation pad, comprising a bottom layer (1), characterized in that: A mounting groove (2) is provided on the base surface of the bottom layer (1), a sound insulation layer (3) is installed on the base surface of the bottom layer (1), a corrugated groove (4) is provided on the outer wall of the sound insulation layer (3), a support plate (5) is installed on the outer wall of the sound insulation layer (3), a diaphragm (6) is installed on the outer wall of the support plate (5), a buffer layer (7) is installed on the outer wall of the diaphragm (6), and a wear-resistant layer (8) is installed on the outer wall of the buffer layer (7).

2. A sound insulation pad according to claim 1, characterized in that: The installation grooves (2) are provided in multiple groups and are respectively located on the base surface of the bottom layer (1).

3. A sound insulation pad according to claim 1, characterized in that: The corrugated grooves (4) are provided in multiple groups and are respectively located on the outer wall of the sound insulation layer (3).

4. A sound insulation pad according to claim 1, characterized in that: The connection mode between the corrugated groove (4) and the mounting groove (2) is a plug-in connection, and the material of the sound insulation layer (3) is a polystyrene foam plastic material.

5. A sound insulation pad according to claim 1, characterized in that: The support plate (5) is made of high-density fiberboard, and the diaphragm (6) is made of polyvinyl chloride plastic film.

6. A sound insulation pad according to claim 1, characterized in that: The material of the buffer layer (7) is polycarbonate material, and the material of the wear-resistant layer (8) is aluminum oxide ceramic material.

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