Automobile hole blocking patch with stable structure

Abstract

The utility model relates to the technical field of hole plugging patches, and discloses an automobile hole plugging patch with a stable structure, which comprises a wear-resistant coating, an anti-fatigue layer arranged at the bottom end of the wear-resistant coating, a sound insulation layer arranged at the bottom end of the anti-fatigue layer, a flame-retardant layer arranged at the bottom end of the sound insulation layer, and a waterproof layer arranged at the bottom end of the flame-retardant layer. And a high-strength bonding layer is arranged at the bottom end of the waterproof layer. According to the hole blocking patch for the automobile, through mutual cooperation of the six-layer structure of the wear-resistant coating, the anti-fatigue layer, the sound insulation layer, the flame-retardant layer, the waterproof layer and the high-strength bonding layer, the overall performance of the patch is comprehensively improved, it is ensured that the patch can be kept stable and reliable in various environments, the structural stability of the hole blocking patch for the automobile is fully embodied, and the service life of the patch is prolonged. And reliable sealing and protection can be provided under various environments and use conditions, and the hole plugging patch is more firmly adhered by forming negative pressure in the groove.

Description

Technical Field

[0001] The utility model relates to the technical field of hole plugging patches, in particular to a hole plugging patch for automobiles with a stable structure. Background Art

[0002] Automotive hole plugging patches are a multifunctional material used to seal holes in the body or parts during automobile manufacturing and maintenance. They are usually made of multi-layer composite materials to ensure excellent performance in various environments. These patches are widely used in automobile production to seal holes after body welding, cover electronic component installation holes, and prevent dust, moisture or noise from penetrating into the car through holes.

[0003] After searching, the announcement number CN204124073U is a kind of automobile plugging patch, which is used to plug some process hole defects left in the automobile manufacturing process. It includes EPDM microporous foam sheet, butyl rubber, and isolation paper. A layer of butyl rubber is coated on the EPDM microporous foam sheet, and a layer of isolation paper is arranged on the butyl rubber. The effect of this utility model is that it solves the defects of different degrees encountered by the substrate of the current automobile plugging patch during use, and plays a positive role in improving the overall NVH of the automobile.

[0004] Based on the above patent, the main characteristics of the EPDM microporous foam sheet are its excellent resistance to oxidation, ozone and erosion. It can maintain good stability in some harsh environments such as high temperature and humidity, and will not curl up under high temperature conditions. It has good flexibility, which solves the problem of poor thermal stability of some materials in the existing technology. However, due to the increasingly complex driving environment of vehicles, conventional solutions to the problems of poor sound absorption and sound insulation and poor thermal stability may be difficult to meet market demand. In this regard, in response to this technical problem, this application proposes a structurally stable automotive hole plugging patch. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and proposes a hole plugging patch for automobiles with a stable structure, aiming to enhance the performance of the hole plugging patch and make the hole plugging patch stick more firmly.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a structurally stable automobile hole plugging patch, comprising a wear-resistant coating, an anti-fatigue layer is arranged at the bottom of the wear-resistant coating, a sound insulation layer is arranged at the bottom of the anti-fatigue layer, a flame retardant layer is arranged at the bottom of the sound insulation layer, a waterproof layer is arranged at the bottom of the flame retardant layer, and a high-strength adhesive layer is arranged at the bottom of the waterproof layer.

[0007] Furthermore, a groove is provided on the inner wall of the high-strength adhesive layer, an oxidation-reduction agent is arranged on the top of the inner wall of the groove, and the inner wall of the groove is filled with protective nitrogen.

[0008] Furthermore, a foaming material is provided at the bottom end of the high-strength adhesive layer.

[0009] Furthermore, a protective layer is provided on the high-strength adhesive layer and the bottom end of the foaming material.

[0010] Furthermore, a tear strip is fixedly connected to the right end of the protective layer.

[0011] Furthermore, the inner wall of the wear-resistant coating is fixedly connected with reinforcing ribs.

[0012] Furthermore, the outer walls of the reinforcing ribs are respectively fixedly connected to the inner walls of the anti-fatigue layer, the sound insulation layer, the flame retardant layer, the waterproof layer, and the high-strength adhesive layer.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the wear-resistant coating, anti-fatigue layer, sound insulation layer, flame retardant layer, waterproof layer and high-strength adhesive layer cooperate with each other to ensure the durability of the patch in long-term use and enhance its durability under repeated loads, provide sound insulation effect, improve the comfort in the car, enhance fire resistance, provide waterproof protection, ensure sealing effect, prevent moisture penetration, and provide strong adhesion to ensure that the patch is firmly adhered to the surface of the car body.

[0015] 2. In the utility model, through the mutual cooperation among the groove, the redox agent, the protective layer and the easy-tear strip, it is achieved that the protective layer can be easily torn off using the easy-tear strip. When the protective layer is torn off, the nitrogen inside the groove will mix with the oxygen in the air and finally form a balance. At this time, the hole-plugging patch is attached to the hole, and the redox agent inside the groove will absorb oxygen to produce oxygen adsorption behavior, so that the internal pressure becomes lower and negative pressure is generated, so that the hole-plugging patch sticks more firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a structurally stable automobile plugging patch proposed by the utility model;

[0017] Figure 2 A schematic diagram of a groove of a hole plugging patch for a car with a stable structure proposed by the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the structure of a hole plugging patch for automobiles with a stable structure.

[0019] Legend:

[0020] 1. Wear-resistant coating; 2. Anti-fatigue layer; 3. Sound insulation layer; 4. Flame retardant layer; 5. Waterproof layer; 6. High-strength adhesive layer; 7. Reinforcement ribs; 8. Protective layer; 9. Tear strip; 10. Foaming material; 11. Groove; 12. Redox agent. DETAILED DESCRIPTION

[0021] 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.

[0022] Reference Figure 1-3 The utility model provides an embodiment: a structurally stable automobile hole plugging patch, comprising a wear-resistant coating 1, an anti-fatigue layer 2 is arranged at the bottom of the wear-resistant coating 1, a sound insulation layer 3 is arranged at the bottom of the anti-fatigue layer 2, a flame retardant layer 4 is arranged at the bottom of the sound insulation layer 3, a waterproof layer 5 is arranged at the bottom of the flame retardant layer 4, a high-strength adhesive layer 6 is arranged at the bottom of the waterproof layer 5, a groove 11 is opened on the inner wall of the high-strength adhesive layer 6, an oxidation-reduction agent 12 is arranged on the top of the inner wall of the groove 11, and the inner wall of the groove 11 is filled with protective nitrogen, a foaming material 10 is arranged at the bottom of the high-strength adhesive layer 6, a protective layer 8 is arranged at the bottom of the high-strength adhesive layer 6 and the foaming material 10, an easy-tear strip 9 is fixedly connected to the right end of the protective layer 8, a reinforcing rib 7 is fixedly connected to the inner wall of the wear-resistant coating 1, and the outer walls of the reinforcing rib 7 are respectively fixedly connected to the inner walls of the anti-fatigue layer 2, the sound insulation layer 3, the flame retardant layer 4, the waterproof layer 5 and the high-strength adhesive layer 6.

[0023] Specifically, when in use, first tear off the protective layer 8 at the bottom of the plugging patch with the tear strip 9, the protective layer 8 protects the foaming material 10 to prevent it from reacting with oxygen, and at the same time prevents the protective nitrogen in the groove 11 from escaping. When the protective layer 8 is torn off, the protective nitrogen in the groove 11 on the inner wall of the high-strength adhesive layer 6 will mix with the oxygen in the air and eventually reach a balanced state. Then, align the foaming material 10 with the hole of the car, and stick the high-strength adhesive layer 6 on the four sides of the hole. At this time, the groove 11 forms a sealed space with the car, and the redox agent 12 on the inner wall of the groove 11 absorbs oxygen to form an "oxygen adsorption" phenomenon, thereby reducing the pressure in the sealed space. The strength is reduced to form a negative pressure state, so that the plugging patch is more firmly bonded. The redox agent 12 can be iron powder, which can react with oxygen to generate iron oxide. When the iron powder absorbs oxygen, the surrounding oxygen concentration will decrease, causing negative pressure. At the same time, the foaming material 10 will react with oxygen to expand and become larger to block the hole. The foaming material 10 is made of polyethylene foam, which can expand and become larger when it comes into contact with oxygen, and polyethylene foam is a lightweight plastic material with good insulation properties. The outermost wear-resistant coating 1 is mainly responsible for providing wear resistance and scratch resistance. This layer prevents The anti-fatigue layer 2 following the wear-resistant coating 1 enhances the durability of the material under repeated loads. It disperses and absorbs stress through its special molecular structure, reducing the risk of material fatigue and cracking caused by repeated bending and deformation. The sound insulation layer 3 plays a role in blocking the propagation of noise in the structure. It reduces the external noise entering the car through its dense structure and sound-absorbing materials, thereby improving the comfort of the car. The flame retardant layer 4 provides safety in the event of high temperature or fire. This layer of material slows down the combustion process through chemical reactions, reducing The speed of fire spread is reduced and safety in emergency situations is ensured. The waterproof layer 5 is responsible for providing waterproof protection and ensuring the sealing effect. It prevents moisture penetration through its impermeable material, prevents internal components from being affected by the humid environment, and keeps the car dry. The innermost high-strength adhesive layer 6 ensures that the patch can be firmly adhered to the surface of the car body. It is tightly combined with the surface of the car body through its strong adhesive material to ensure that the patch can remain stable under various conditions and is not easy to fall off. The reinforcing ribs 7 on the inner wall can make the wear-resistant coating 1, anti-fatigue layer 2, sound insulation layer 3, flame retardant layer 4, waterproof layer 5, and high-strength adhesive layer 6 more firmly connected.

[0024] Working principle: When in use, first use the tear strip 9 to tear off the protective layer 8 at the bottom of the hole-plugging patch. The protective nitrogen in the groove 11 on the inner wall of the high-strength adhesive layer 6 will mix with the oxygen in the air to reach a state of equilibrium. Then align the foaming material 10 with the hole in the car and stick the high-strength adhesive layer 6 on the four sides of the hole. At this time, the groove 11 and the car form a sealed space, and the redox agent 12 on the inner wall of the groove 11 will absorb oxygen to form an "oxygen adsorption" phenomenon, thereby reducing the pressure in the sealed space and forming a negative pressure state, making the hole-plugging patch more firmly bonded. At the same time, the foaming material 10 will react with oxygen, thereby expanding and becoming larger to block the hole, and the reinforcing ribs 7 on the inner wall can make the wear-resistant coating 1, anti-fatigue layer 2, sound insulation layer 3, flame retardant layer 4, waterproof layer 5, and high-strength adhesive layer 6 more firmly connected.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the protection scope of the present invention.

Claims

1. A structurally stable automobile hole plugging patch, comprising a wear-resistant coating (1), characterized in that: The bottom end of the wear-resistant coating (1) is provided with an anti-fatigue layer (2), the bottom end of the anti-fatigue layer (2) is provided with a sound insulation layer (3), the bottom end of the sound insulation layer (3) is provided with a flame retardant layer (4), the bottom end of the flame retardant layer (4) is provided with a waterproof layer (5), and the bottom end of the waterproof layer (5) is provided with a high-strength adhesive layer (6).

2. A structurally stable automobile plugging patch according to claim 1, characterized in that: The inner wall of the high-strength adhesive layer (6) is provided with a groove (11), the top of the inner wall of the groove (11) is provided with an oxidation-reduction agent (12), and the inner wall of the groove (11) is filled with protective nitrogen.

3. The structurally stable automobile hole plugging patch according to claim 1, characterized in that: A foaming material (10) is provided at the bottom end of the high-strength adhesive layer (6).

4. The structurally stable automobile hole plugging patch according to claim 3, characterized in that: A protective layer (8) is provided at the bottom of the high-strength adhesive layer (6) and the foaming material (10).

5. The structurally stable automobile hole plugging patch according to claim 4, characterized in that: The right end of the protective layer (8) is fixedly connected with an easy-tear strip (9).

6. The structurally stable automobile hole plugging patch according to claim 1, characterized in that: The inner wall of the wear-resistant coating (1) is fixedly connected with a reinforcing rib (7).

7. The structurally stable automobile hole plugging patch according to claim 6, characterized in that: The outer walls of the reinforcing ribs (7) are respectively fixedly connected to the inner walls of the anti-fatigue layer (2), the sound insulation layer (3), the flame retardant layer (4), the waterproof layer (5), and the high-strength adhesive layer (6).

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