A shock-absorbing and cushioning type of automotive sound insulation pad

Abstract

This utility model discloses a shock-absorbing and buffering type automotive sound insulation pad, relating to the field of automotive parts technology. It includes a sound insulation pad body and insertion holes: insertion holes are evenly distributed at the four corners of the sound insulation pad body; an adhesive layer is adhered to the back of the sound insulation pad body; release paper covers the outer surface of the adhesive layer; a screw passes through the center of each insertion hole; and buckles are provided at the four corners of the sound insulation pad body, with the buckles and screws being threadedly fastened together. The shock-absorbing and buffering layer of this automotive sound insulation pad is composed of horizontally arranged rubber pads spliced ​​together. The good elasticity of the rubber pads effectively absorbs and disperses vibration energy, reducing the feeling of vibration inside the vehicle. The positioning groove at the bottom precisely engages with the positioning strip integrated into the upper surface of the second adhesive sheet, and the adhesive strip adhered to the top of the positioning groove further adheres to the positioning strip. This double fixation ensures a stable connection between the shock-absorbing and buffering layer and the second adhesive sheet, maintaining structural stability and optimizing the sound insulation and shock absorption effect.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a shock-absorbing and buffering automotive sound insulation pad. Background Technology

[0002] Car sound insulation pads are generally composed of a sound insulation material layer (which is dense) and a sound absorption material layer (which is loose and porous). They can be applied to various parts of a car, such as the engine compartment, passenger compartment, and trunk, and have sound insulation and sound absorption functions, providing a quiet driving environment for the driver and passengers.

[0003] However, existing car sound insulation mats still have some problems:

[0004] An existing automotive sound insulation pad, such as one described in application number CN201720419527.7, includes a first sound-absorbing layer, a first plastic film layer, a sound-insulating layer, a second plastic film layer, and a second sound-absorbing layer. The sound-insulating layer is disposed between the first plastic film layer and the second plastic film layer, and the first surface of the sound-insulating layer is adhered to the first surface of the first plastic film layer, and the second surface of the sound-insulating layer opposite to its first surface is adhered to the first surface of the second plastic film layer. The first sound-absorbing layer is disposed on the second surface of the first plastic film layer opposite to its first surface, and the second sound-absorbing layer is disposed on the second surface of the second plastic film layer opposite to its first surface.

[0005] When a car is in motion, it transmits vibrations into the car. Although traditional car sound insulation pads have a certain degree of noise reduction effect, their shock absorption effect is generally average, which can easily affect the driving experience and fail to meet people's demand for a high-quality driving environment.

[0006] Therefore, we propose a shock-absorbing and buffering type automotive sound insulation pad to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this utility model is to provide a shock-absorbing and buffering type automotive sound insulation pad to solve the problem that the automotive sound insulation pads mentioned in the background art have a certain degree of noise blocking effect, but the shock absorption effect is generally average, which can easily affect the driving experience of the car and cannot meet people's demand for a high-quality driving environment.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a shock-absorbing and buffering automotive sound insulation pad, comprising a sound insulation pad body and insertion holes:

[0009] The sound insulation pad body has evenly spaced insertion holes at its four corners. An adhesive layer is pasted on the back of the sound insulation pad body, and the outer surface of the adhesive layer is covered with release paper. A screw passes through the center of each insertion hole. Buckles are provided at the four corners of the sound insulation pad body, and the buckles and screws are connected by threads.

[0010] The sound insulation pad body includes an outermost wear-resistant protective layer, the lower end of which is adhered with a first adhesive sheet; the sound insulation pad body includes a middle shock-absorbing buffer layer, the upper end of which is adhered to the lower end of the first adhesive sheet; the lower end of which is adhered with a second adhesive sheet; and the sound insulation pad body includes an inner sound-absorbing foam layer, the upper end of which is adhered to the lower end of the second adhesive sheet.

[0011] Using the above technical solution, the car sound insulation pad adopts a multi-layer composite structure. The wear-resistant protective layer, the shock-absorbing buffer layer, and the sound-absorbing foam layer are bonded together with adhesive sheets, which can effectively resist wear, absorb vibration and reduce noise. By opening holes at the four corners, the clips are fixed to the bottom corners of the sound insulation pad body with screws, and then connected to the car parts through the clips. With the help of the adhesive layer on the back, it can be firmly installed in the car, improving the sound insulation and vibration reduction effect.

[0012] Preferably, the wear-resistant protective layer comprises a first polyester fiber fabric and a second polyester fiber fabric, and the first polyester fiber fabric and the second polyester fiber fabric are arranged in a vertically crisscross pattern.

[0013] Using the above technical solution, the wear-resistant protective layer is composed of a first polyester fiber fabric and a second polyester fiber fabric arranged in a vertical cross pattern, which can effectively improve the wear resistance of the wear-resistant protective layer, better protect the main body of the sound insulation pad, prevent it from being worn and scratched in daily use, and extend the service life of the sound insulation pad.

[0014] Preferably, the first adhesive sheet has a double-sided adhesive structure, and the second adhesive sheet has a single-sided adhesive structure.

[0015] Using the above technical solution, the first adhesive sheet adopts a double-sided adhesive structure, which can be tightly bonded to the wear-resistant protective layer and the shock-absorbing buffer layer respectively; the second adhesive sheet adopts a single-sided adhesive structure, which is used to fix the sound-absorbing foam layer to the bottom. By using different adhesive structure designs, the connection requirements between each layer are met, which can ensure that the layers of the sound insulation pad are firmly bonded together, ensure the integrity of the multi-layer structure, and thus enable the sound insulation pad to better perform its shock absorption, sound insulation and other performance, and extend its service life.

[0016] Preferably, the shock-absorbing buffer layer is composed of several horizontally arranged rubber pads spliced ​​together. The bottom of the shock-absorbing buffer layer is provided with a positioning groove, and an adhesive strip is pasted on the inner top of the positioning groove. Several positioning strips are integrally provided on the upper surface of the second adhesive plate, and the positioning groove and the positioning strip are correspondingly engaged and connected, and the adhesive strip and the positioning strip are adhesively connected.

[0017] Using the above technical solution, the shock-absorbing buffer layer is composed of horizontally arranged rubber pads spliced ​​together. The positioning groove at the bottom engages with the positioning strip on the second adhesive board, and is further fixed by the adhesive strip inside the positioning groove. This achieves a stable connection between the shock-absorbing buffer layer and the second adhesive board. On the one hand, the splicing of rubber pads enhances the shock-absorbing performance; on the other hand, the engagement of the positioning groove and the positioning strip, as well as the adhesive strip, ensures a tight connection between the shock-absorbing buffer layer and the lower layer, ensuring the overall structural stability of the sound insulation pad and optimizing the sound insulation and shock absorption effect.

[0018] Preferably, the sound-absorbing foam layer has a number of uniformly distributed micropores inside.

[0019] By adopting the above technical solution, the uniformly distributed micropores inside the sound-absorbing foam layer cause sound to be continuously reflected and refracted within the pores during sound propagation, resulting in energy loss, effectively absorbing various types of noise, significantly reducing the noise level inside the vehicle, creating a quieter and more comfortable driving environment, and improving the overall sound insulation performance of the car.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. The shock-absorbing buffer layer is made of horizontally arranged rubber pads spliced ​​together. The good elasticity of the rubber pads can effectively absorb and disperse vibration energy, reduce the vibration feeling in the car. The positioning groove opened at the bottom of the pads is precisely engaged with the positioning strip integrated on the upper surface of the second adhesive plate. Furthermore, the adhesive strip pasted on the top of the positioning groove is further bonded to the positioning strip. This double fixation ensures that the shock-absorbing buffer layer and the second adhesive plate are firmly connected, maintain structural stability, and optimize the sound insulation and vibration reduction effect.

[0022] 2. Screws pass through the evenly spaced holes at the four corners of the sound insulation pad body and are threadedly fastened to the clips located at the four corners of the sound insulation pad body. The clips are then connected to the car parts, which can firmly fix the sound insulation pad body in the corresponding installation position of the car, effectively resisting external forces such as vibration and bumps during car driving, preventing the sound insulation pad from shifting, ensuring its continuous and stable operation, and improving the sound insulation and vibration reduction effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the external structure of this utility model from the front view;

[0024] Figure 2 This is a schematic diagram of the composite structure of the main body of the sound insulation pad of this utility model;

[0025] Figure 3 This is a schematic diagram of the buckle and screw connection structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the connection structure between the wear-resistant protective layer and the first adhesive sheet of this utility model;

[0027] Figure 5 This is a schematic diagram of the connection structure between the shock-absorbing buffer layer and the second adhesive sheet of this utility model;

[0028] Figure 6 This is a schematic diagram of the connection structure between the sound-absorbing foam layer and the second adhesive sheet of this utility model.

[0029] In the diagram: 1. Sound insulation pad body; 11. Wear-resistant protective layer; 1101. First polyester fiber fabric; 1102. Second polyester fiber fabric; 12. First adhesive sheet; 13. Shock-absorbing buffer layer; 1301. Positioning groove; 1302. Adhesive strip; 14. Second adhesive sheet; 1401. Positioning strip; 15. Sound-absorbing foam layer; 1501. Micropores; 2. Insertion hole; 3. Adhesive layer; 4. Release paper; 5. Screw; 6. Buckle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Please see Figures 1-6 This utility model provides a technical solution: a shock-absorbing and buffering type automotive sound insulation pad, including a sound insulation pad body 1 and insertion holes 2: insertion holes 2 are evenly provided at the four corners of the sound insulation pad body 1, an adhesive layer 3 is pasted on the back of the sound insulation pad body 1, the outer surface of the adhesive layer 3 is covered with release paper 4, a screw 5 passes through the middle of the insertion hole 2, and buckles 6 are provided at the four corners of the sound insulation pad body 1, and the buckles 6 are threadedly fastened to the screws 5.

[0032] During installation, screws 5 pass through the evenly spaced insertion holes 2 at the four corners of the sound insulation pad body 1 and are threadedly fastened to the clips 6 located at the four corners of the sound insulation pad body 1. The clips 6 then connect to the vehicle components, firmly fixing the sound insulation pad body 1 to the corresponding installation position on the vehicle. This effectively resists external forces such as vibration and bumps during vehicle operation, preventing the sound insulation pad from shifting and ensuring its continuous and stable operation. Meanwhile, the adhesive layer 3 pasted on the back of the sound insulation pad body 1, after removing the release paper 4 covering the outer surface during installation, can tightly adhere to the vehicle installation location. The adhesive layer 3 not only further enhances the installation stability of the sound insulation pad but also fills the tiny gaps between the sound insulation pad and the installation surface, reducing sound transmission through the gaps and improving the sound insulation effect. In addition, the adhesive layer 3, due to its own adhesiveness, plays a certain role in dispersing vibrations, assisting in achieving shock absorption and buffering functions.

[0033] The sound insulation pad body 1 includes an outermost wear-resistant protective layer 11, with a first adhesive sheet 12 adhered to the lower end face of the wear-resistant protective layer 11. The sound insulation pad body 1 includes a middle shock-absorbing buffer layer 13, with the upper end face of the shock-absorbing buffer layer 13 adhered to the lower end face of the first adhesive sheet 12. A second adhesive sheet 14 is adhered to the lower end face of the shock-absorbing buffer layer 13. The sound insulation pad body 1 includes an inner sound-absorbing foam layer 15, with the upper end face of the sound-absorbing foam layer 15 adhered to the lower end face of the second adhesive sheet 14. The wear-resistant protective layer 11 includes a first polyester fiber fabric 1101 and a second polyester fiber fabric 1102, arranged in a vertically crisscross pattern. The first adhesive sheet 12 has a double-sided adhesive structure, while the second adhesive sheet 14 has a single-sided adhesive structure. The shock-absorbing buffer layer 13 is composed of several horizontally arranged rubber pads spliced ​​together. A positioning groove 1301 is provided at the bottom of the shock-absorbing buffer layer 13, and an adhesive strip 1302 is adhered to the top inner surface of the positioning groove 1301. Several positioning strips 1401 are integrally provided on the upper surface of the second adhesive sheet 14, and the positioning groove 1301 and the positioning strips 1401 are correspondingly engaged and connected, while the adhesive strips 1302 are adhesively connected to the positioning strips 1401. The sound-absorbing foam layer 15 has several uniformly distributed micropores 1501 inside.

[0034] The outermost wear-resistant protective layer 11 of the sound insulation pad body 1 is composed of a first polyester fiber fabric 1101 and a second polyester fiber fabric 1102 arranged in a vertical cross pattern, which improves the wear resistance of the sound insulation pad body 1 and protects the internal structure from external friction damage. Its lower end face is firmly bonded to the middle shock-absorbing buffer layer 13 with the help of a first adhesive plate 12 with a double-sided adhesive structure, ensuring a tight connection between the layers and stable transmission of force and energy. The shock-absorbing buffer layer 13 is spliced ​​together with horizontally arranged rubber pads. The good elasticity of the rubber pads can effectively absorb and disperse vibration energy and reduce the vibration feeling in the vehicle. The positioning groove 1301 opened at its bottom is integrated with the upper end face of the second adhesive plate 14. The positioning strip 1401 is precisely engaged, and the adhesive strip 1302 pasted on the top of the positioning groove 1301 is further adhered to the positioning strip 1401. This double fixation ensures a stable connection between the shock-absorbing buffer layer 13 and the second adhesive plate 14, maintaining structural stability. The single-sided adhesive structure of the second adhesive plate 14 is used to adhere the inner sound-absorbing foam layer 15. The sound-absorbing foam layer 15 has multiple micropores 1501 evenly distributed inside. After sound enters, it is continuously reflected and refracted in the pores, and a large amount of sound energy is consumed and converted, effectively reducing in-vehicle noise, creating a quieter and more comfortable driving environment, improving the overall sound insulation performance of the car, and extending the service life of the sound insulation pad body 1.

[0035] Working principle: For this type of shock-absorbing and buffering automotive sound insulation pad, during installation, screws 5 pass through the insertion holes 2 at the four corners of the sound insulation pad body 1 and are threadedly fastened to the clips 6. The clips 6 then connect the sound insulation pad body 1 to the automotive components, ensuring a stable installation in the corresponding position on the vehicle. This resists vibrations and bumps during driving and prevents displacement. Simultaneously, after removing the release paper 4 from the adhesive layer 3 on the back of the sound insulation pad body 1, the adhesive layer 3 adheres tightly to the vehicle's installation location, enhancing installation stability, filling gaps to reduce sound transmission, and also assisting in dispersing vibrations. Furthermore, the outermost layer of the sound insulation pad body 1 is composed of a first polyester fiber fabric 1101 and a second polyester fiber fabric 1102 perpendicularly intersecting... The wear-resistant protective layer 11, arranged in a forked pattern, protects the internal structure from friction. It is connected to the middle shock-absorbing buffer layer 13, which is made of horizontally spliced ​​rubber pads, by a first adhesive plate 12 with double-sided adhesive. The rubber pads elastically absorb and disperse vibration energy. The positioning groove 1301 at the bottom of the shock-absorbing buffer layer 13 engages with the positioning strip 1401 of the second adhesive plate 14. The adhesive strip 1302 is pasted to the positioning strip 1401 for a stable connection. The second adhesive plate 14 with single-sided adhesive connects to the inner sound-absorbing foam layer 15. After the sound enters the sound-absorbing foam layer 15, it is continuously reflected and refracted in the evenly distributed micropores 1501 inside, which consumes sound energy and reduces the noise inside the vehicle.

[0036] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A shock-absorbing and buffering type automotive sound insulation pad, comprising a sound insulation pad body (1) and an insertion hole (2), characterized in that: The sound insulation pad body (1) has evenly spaced insertion holes (2) at its four corners. An adhesive layer (3) is pasted on the back of the sound insulation pad body (1). The outer surface of the adhesive layer (3) is covered with release paper (4). A screw (5) passes through the middle of the insertion hole (2). Buckles (6) are provided at the four corners of the sound insulation pad body (1), and the buckles (6) and screws (5) are threadedly fastened together. The sound insulation pad body (1) includes an outermost wear-resistant protective layer (11), the lower end face of which is attached to a first adhesive board (12), the sound insulation pad body (1) includes a middle shock-absorbing buffer layer (13), the upper end face of which is attached to the lower end face of the first adhesive board (12), the lower end face of which is attached to a second adhesive board (14), and the sound insulation pad body (1) includes an inner sound-absorbing foam layer (15), the upper end face of which is attached to the lower end face of the second adhesive board (14).

2. The shock-absorbing and buffering automotive sound insulation pad according to claim 1, characterized in that: The wear-resistant protective layer (11) includes a first polyester fiber fabric (1101) and a second polyester fiber fabric (1102), and the first polyester fiber fabric (1101) and the second polyester fiber fabric (1102) are arranged in a vertically cross pattern.

3. The shock-absorbing and buffering automotive sound insulation pad according to claim 1, characterized in that: The first adhesive sheet (12) has a double-sided adhesive structure, and the second adhesive sheet (14) has a single-sided adhesive structure.

4. The shock-absorbing and buffering automotive sound insulation pad according to claim 1, characterized in that: The shock-absorbing buffer layer (13) is composed of several horizontally arranged rubber pads spliced ​​together. The bottom of the shock-absorbing buffer layer (13) is provided with a positioning groove (1301). An adhesive strip (1302) is pasted on the inner top of the positioning groove (1301). Several positioning strips (1401) are integrally provided on the upper surface of the second adhesive plate (14). The positioning groove (1301) and the positioning strip (1401) are correspondingly engaged and connected. The adhesive strip (1302) and the positioning strip (1401) are adhesively connected.

5. The shock-absorbing and buffering automotive sound insulation pad according to claim 1, characterized in that: The sound-absorbing foam layer (15) has a number of tiny pores (1501) evenly distributed inside.

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