Noise-proof pad for automobile

Abstract

The utility model relates to the technical field of anti-noise pads, and provides an anti-noise pad for an automobile, which comprises a shock absorption layer, a noise reduction structure is fixed at the top end of the shock absorption layer, the noise reduction structure comprises a second bonding layer, a first noise reduction layer, noise reduction holes and a second noise reduction layer, the first noise reduction layer is arranged above the shock absorption layer, and the second noise reduction layer is arranged above the first noise reduction layer. Second bonding layers are fixed to the two ends of the first noise reduction layer, and noise reduction holes are formed in the first noise reduction layer in a penetrating mode. The noise reduction structure is arranged, the second bonding layer is damping rubber, the first noise reduction layer and the second noise reduction layer are bonded to the top end of the damping layer while the damping function is achieved, the first noise reduction layer is made of sound insulation cotton, a plurality of noise reduction holes are evenly formed in the first noise reduction layer, the sound absorption function is improved, and the second noise reduction layer is a rubber layer. The noise-proof pad has the characteristics of low cost, sound insulation, firmness, durability and the like, the noise-proof characteristic of the device is realized, and the noise reduction performance of the noise-proof pad is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-noise pads, in particular to an anti-noise pad for automobiles. Background Art

[0002] A car anti-noise mat is specially designed to reduce the noise inside the car. This mat is usually used in the car's hood, firewall, trunk and door to effectively absorb and block noise and improve driving and riding comfort. This anti-noise mat is generally made of advanced sound insulation materials. When installing, it is necessary to ensure that it fits tightly to the corresponding part of the car's interior to achieve the best sound insulation effect. At the same time, the material of the anti-noise mat should also consider its environmental protection and safety to avoid the production of harmful substances or effects on human health during long-term use.

[0003] When a car starts, it will generate noise and a lot of heat energy. However, the current single-layer anti-noise pad has a poor sound insulation effect, which will reduce the comfort of people when using the car. Utility Model Content

[0004] The utility model aims to provide an anti-noise pad for automobiles, so as to solve the defect of poor sound insulation of the existing anti-noise pad for automobiles.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an anti-noise pad for automobile, comprising a shock-absorbing layer;

[0006] A noise reduction structure is fixed on the top of the shock-absorbing layer;

[0007] The noise reduction structure comprises a second adhesive layer, a first noise reduction layer, noise reduction holes, and a second noise reduction layer, wherein the first noise reduction layer is arranged above the shock-absorbing layer, the second adhesive layer is fixed at both ends of the first noise reduction layer, the first noise reduction layer is penetrated by noise reduction holes, and the second noise reduction layer is arranged on the top of the second adhesive layer above the first noise reduction layer;

[0008] A heat insulation structure is arranged at the bottom end of the shock-absorbing layer, and mounting structures are arranged on both sides of the bottom end of the heat insulation structure.

[0009] Preferably, the first noise reduction layer is sound insulation cotton, and the noise reduction holes are distributed at equal intervals inside the first noise reduction layer.

[0010] Preferably, the thermal insulation structure includes a first thermal insulation layer, a first adhesive layer and a second thermal insulation layer, the second thermal insulation layer is arranged below the shock-absorbing layer, the first adhesive layer is fixed at both ends of the second thermal insulation layer, and the first thermal insulation layer is fixed at the bottom end of the first adhesive layer.

[0011] Preferably, the first adhesive layer is resin glue, and the second heat insulation layer is silicate fiber.

[0012] Preferably, the mounting structure comprises a cable tie, a hook piece and a fur piece, the top ends of the fur piece are arranged on both sides of the bottom end of the thermal insulation structure, the bottom end of the fur piece is provided with a hook piece, and the bottom end of the hook piece is provided with a cable tie.

[0013] Preferably, the hook piece is made of nylon, and the top of the hook piece is provided with many tiny and strong hooks.

[0014] Preferably, the wool piece is made of polyamide fiber, and the bottom end of the wool piece has many small soft fiber horns.

[0015] The utility model provides an anti-noise pad for automobile, which has the advantages of:

[0016] By providing a noise reduction structure, the second adhesive layer is a shock-absorbing glue, and the first noise reduction layer and the second noise reduction layer are bonded to the top of the shock-absorbing layer while having a shock-absorbing function. The first noise reduction layer is a sound insulation cotton, and a plurality of noise reduction holes are evenly opened inside to improve the sound absorption function. The second noise reduction layer is a rubber layer, which has the characteristics of low cost, sound insulation, firmness and durability, etc., thus realizing the anti-noise characteristics of the device and improving the noise reduction performance of the anti-noise pad.

[0017] By providing an installation structure, the noise reduction structure is pulled to drive the hair piece, so that the hair piece and the hook piece are separated, and the position of the noise reduction structure is adjusted so that the bottom end of the hair piece conflicts with the top end of the hook piece. The top end of the hook piece has many tiny and strong hook-shaped burrs, and the bottom end of the hair piece has many small and soft fiber corners densely arranged. The noise reduction structure is pressed so that the burrs of the hook piece and the fiber corners of the hair piece fit closely, thereby realizing the function of easy disassembly and assembly of the device and improving the convenience of the noise-proof pad.

[0018] By providing a thermal insulation structure, the first thermal insulation layer is a thermoplastic fiber felt, which has the characteristics of sound absorption, heat insulation, moisture resistance, fire resistance, etc. Due to the special material of the first adhesive layer, the first thermal insulation layer and the second thermal insulation layer can be bonded together, and the second thermal insulation layer has good thermal insulation performance. Under the action of the first thermal insulation layer and the second thermal insulation layer, the thermal insulation function of the device is realized, and the thermal insulation of the anti-noise pad is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main cross-section of the utility model;

[0020] Figure 2 It is a side cross-sectional schematic diagram of the utility model;

[0021] Figure 3 It is a three-dimensional exploded schematic diagram of the installation structure of the utility model;

[0022] Figure 4 It is a three-dimensional schematic diagram of the utility model;

[0023] Figure 5 It is a three-dimensional explosion schematic diagram of the noise reduction structure of the utility model.

[0024] Explanation of the reference numerals in the figure: 1. Installation structure; 11. Cable tie; 12. Hook piece; 13. Fur piece; 2. Thermal insulation structure; 21. First thermal insulation layer; 22. First adhesive layer; 23. Second thermal insulation layer; 3. Shock absorption layer; 4. Noise reduction structure; 41. Second adhesive layer; 42. First noise reduction layer; 43. Noise reduction hole; 44. Second noise reduction layer. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5 The utility model provides an anti-noise pad for a car, comprising a shock-absorbing layer 3.

[0027] Reference Figure 1 and Figure 5 As shown, a noise reduction structure 4 is fixed on the top of the shock-absorbing layer 3, and the noise reduction structure 4 includes a second adhesive layer 41, a first noise reduction layer 42, noise reduction holes 43 and a second noise reduction layer 44. The first noise reduction layer 42 is arranged above the shock-absorbing layer 3, and the second adhesive layer 41 is fixed at both ends of the first noise reduction layer 42. The first noise reduction layer 42 is penetrated by noise reduction holes 43. The second noise reduction layer 44 is arranged on the top of the second adhesive layer 41 above the first noise reduction layer 42. The first noise reduction layer 42 is sound insulation cotton, and the noise reduction holes 43 are evenly distributed inside the first noise reduction layer 42.

[0028] The second adhesive layer 41 is a shock-absorbing adhesive, which not only has the function of shock absorption, but also bonds the first noise reduction layer 42 and the second noise reduction layer 44 to the top of the shock-absorbing layer 3. The first noise reduction layer 42 is sound insulation cotton, and a plurality of noise reduction holes 43 are evenly arranged inside to improve the sound absorption function. The second noise reduction layer 44 is a rubber layer, which has the characteristics of low cost, sound insulation, firmness and durability.

[0029] Reference Figure 1 and Figure 4As shown, a thermal insulation structure 2 is provided at the bottom end of the shock absorbing layer 3, and the thermal insulation structure 2 includes a first thermal insulation layer 21, a first adhesive layer 22 and a second thermal insulation layer 23. The second thermal insulation layer 23 is provided below the shock absorbing layer 3, and the first adhesive layer 22 is fixed at both ends of the second thermal insulation layer 23, and the first thermal insulation layer 21 is fixed at the bottom end of the first adhesive layer 22. The first adhesive layer 22 is resin glue, and the second thermal insulation layer 23 is silicate fiber.

[0030] The first thermal insulation layer 21 is a thermoplastic fiber felt having the characteristics of sound absorption, heat insulation, moisture resistance, and fire resistance. Due to the special material of the first adhesive layer 22, the first thermal insulation layer 21 and the second thermal insulation layer 23 can be bonded together, and the second thermal insulation layer 23 has good thermal insulation performance.

[0031] Reference Figure 1 , Figure 3 and Figure 4 As shown, mounting structures 1 are provided on both sides of the bottom end of the thermal insulation structure 2, and the mounting structure 1 includes a cable tie 11, a hook piece 12 and a fur piece 13. The top ends of the fur piece 13 are provided on both sides of the bottom end of the thermal insulation structure 2, and the bottom end of the fur piece 13 is provided with a hook piece 12, and the bottom end of the hook piece 12 is provided with a cable tie 11. The hook piece 12 is made of nylon, and there are many tiny and strong hooks on the top end of the hook piece 12. The fur piece 13 is polyamide fiber, and there are many small soft fiber horns on the bottom end of the fur piece 13.

[0032] Pull the noise reduction structure 4 to drive the fur piece 13 to separate the fur piece 13 from the hook piece 12, adjust the position of the noise reduction structure 4 so that the bottom end of the fur piece 13 conflicts with the top end of the hook piece 12. The top end of the hook piece 12 has many tiny and strong hook-shaped burrs, and the bottom end of the fur piece 13 has many densely arranged small and soft fiber corners. Press the noise reduction structure 4 to make the burrs of the hook piece 12 fit tightly with the fiber corners of the fur piece 13.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-noise pad for a car, comprising a shock-absorbing layer (3); Features: A noise reduction structure (4) is fixed on the top of the shock-absorbing layer (3); The noise reduction structure (4) comprises a second adhesive layer (41), a first noise reduction layer (42), noise reduction holes (43) and a second noise reduction layer (44); the first noise reduction layer (42) is arranged above the shock absorbing layer (3); the second adhesive layer (41) is fixed to both ends of the first noise reduction layer (42); the first noise reduction layer (42) is penetrated by noise reduction holes (43); and the second noise reduction layer (44) is arranged on the top of the second adhesive layer (41) above the first noise reduction layer (42); A heat insulation structure (2) is provided at the bottom end of the shock-absorbing layer (3), and mounting structures (1) are provided on both sides of the bottom end of the heat insulation structure (2).

2. The anti-noise pad for automobile according to claim 1, characterized in that: The first noise reduction layer (42) is sound insulation cotton, and the noise reduction holes (43) are distributed at equal intervals inside the first noise reduction layer (42).

3. The anti-noise pad for automobile according to claim 1, characterized in that: The thermal insulation structure (2) comprises a first thermal insulation layer (21), a first adhesive layer (22) and a second thermal insulation layer (23); the second thermal insulation layer (23) is arranged below the shock absorbing layer (3); the first adhesive layer (22) is fixed to both ends of the second thermal insulation layer (23); and the first thermal insulation layer (21) is fixed to the bottom end of the first adhesive layer (22).

4. The anti-noise pad for automobile according to claim 3, characterized in that: The first adhesive layer (22) is resin glue, and the second heat insulation layer (23) is silicate fiber.

5. The anti-noise pad for automobile according to claim 1, characterized in that: The mounting structure (1) comprises a cable tie (11), a hook piece (12) and a fur piece (13); the top ends of the fur pieces (13) are arranged on both sides of the bottom end of the thermal insulation structure (2); the bottom end of the fur piece (13) is provided with a hook piece (12); and the bottom end of the hook piece (12) is provided with a cable tie (11).

6. The anti-noise pad for automobile according to claim 5, characterized in that: The hook piece (12) is made of nylon, and the top of the hook piece (12) is provided with many tiny and strong hooks.

7. The anti-noise pad for automobile according to claim 5, characterized in that: The wool piece (13) is made of polyamide fiber, and the bottom end of the wool piece (13) has many small soft fiber horns.

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