Automobile sealing rubber strip capable of preventing falling off due to vibration

By introducing a buffer structure and a high-viscosity adhesive layer into the sealing strip, the problem of the sealing strip loosening and falling off due to vibration is solved, achieving stable sealing and a quiet and comfortable driving environment.

CN223644720UActive Publication Date: 2025-12-09WUHAN PINGTIAN RUBBER PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202520007843.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2025-12-09
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

Traditional sealing strips are prone to loosening or falling off due to vibration during vehicle operation, affecting sealing performance and causing abnormal noise, thus reducing the driving experience and vehicle quality.

Method used

It adopts a U-shaped sealing strip as the main body, with a buffer pad and buffer spring inside, combined with an anti-slip layer and an adhesive layer made of silicone rubber material. High-viscosity polyurethane adhesive is used to enhance friction and provide cushioning, and an inner metal skeleton is set to improve stability.

Benefits of technology

It effectively prevents the sealing strip from loosening or falling off, maintains good sealing performance, reduces abnormal noise, and improves installation efficiency and driving comfort.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223644720U_ABST
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Abstract

The utility model relates to the technical field of automobile sealing rubber strips, and discloses an anti-vibration and anti-falling automobile sealing rubber strip which comprises a U-shaped sealing rubber strip body, and buffering rubber pads are fixedly installed on the left inner side wall and the right inner side wall of the sealing rubber strip body respectively. C-shaped internal connecting pieces are arranged at the left end and the right end of the interior of the sealing rubber strip body correspondingly, a plurality of buffering springs are evenly distributed and fixed to the side faces, close to each other, of the two buffering rubber pads correspondingly, and the other end of each buffering spring is fixedly connected to the side face, close to the inner wall of the sealing rubber strip body, of the corresponding internal connecting piece. Second mounting layers are fixedly mounted on the side faces, close to each other, of the two internal connecting pieces correspondingly, and anti-skid protruding layers are fixedly connected to the side faces, close to each other, of the second mounting layers correspondingly. Through the arrangement of the anti-skid layer, the anti-skid convex layer, the buffer spring and the buffer rubber mat, the sealing rubber strip main body is effectively prevented from loosening or falling off, and the practicability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive sealing strip technology, and in particular to an automotive sealing strip that prevents vibration and detachment. Background Technology

[0002] In modern automotive manufacturing, weatherstripping is an indispensable component of the vehicle body structure. Its main function is to prevent external factors such as water, dust, noise, and odors from entering the vehicle interior, thereby improving the comfort and safety of the driving environment. Its role is particularly significant in critical areas such as doors, windows, trunk lids, and engine hoods. However, in practical applications, traditional weatherstripping often loosens or falls off due to vibrations generated during vehicle operation. This not only affects its sealing performance but may also cause abnormal noises due to friction between loose parts and other parts of the vehicle body, thus impacting the driving experience and the overall quality of the vehicle.

[0003] Therefore, we propose a vibration-resistant automotive sealing strip that prevents detachment. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a vibration-resistant automotive sealing strip.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a vibration-resistant automotive sealing strip, comprising a sealing strip body, the sealing strip body being U-shaped, with buffer pads fixedly installed on the left and right inner sidewalls of the sealing strip body, and C-shaped internal connectors provided at the left and right ends of the sealing strip body, with several buffer springs evenly distributed and fixed on the side of the two buffer pads that are close to each other, the other end of each buffer spring being fixedly connected to the corresponding internal connector on the side of the sealing strip body that is close to the inner wall, a second mounting layer being fixedly installed on the side of the two internal connectors that are close to each other, and an anti-slip protrusion layer being fixedly connected on the side of each second mounting layer that is close to each other, the internal connectors being made of silicone rubber.

[0006] Furthermore, top snap-fit ​​strips are fixedly connected to the left and right ends of the top of the sealing strip body.

[0007] Furthermore, anti-slip layers are fixedly connected to the sides of the two top snap-fit ​​strips that are close to each other. The anti-slip layers are made of silicone rubber.

[0008] Furthermore, a first mounting layer is fixedly connected to the bottom inner wall of the sealing strip body, and an adhesive layer is fixedly connected to the upper surface of the first mounting layer. The adhesive layer is made of polyurethane (PU) adhesive.

[0009] Furthermore, the anti-slip raised layer is distributed in a wavy or serrated shape to further enhance the anti-slip effect.

[0010] Furthermore, the inner layer of the sealing strip body is provided with a metal skeleton.

[0011] Furthermore, the main body of the sealing strip is made of ethylene propylene diene monomer (EPDM) rubber as the main material.

[0012] This invention provides a vibration-resistant automotive sealing strip that prevents it from detaching. It offers the following advantages:

[0013] 1. This type of anti-vibration and anti-detachment automotive sealing strip, in use, utilizes the cooperation between components such as the sealing strip body, top snap-fit ​​strip, anti-slip layer, internal connector, anti-slip raised layer, adhesive layer, buffer spring, first mounting layer, second mounting layer, and buffer pad. When using this automotive sealing strip, the sealing strip body is installed on the part of the car that needs to be installed. The anti-slip layer and anti-slip raised layer increase the friction between the sealing strip body and the installation part, effectively preventing the sealing strip body from loosening or falling off even during strong vibrations in vehicle operation, ensuring a long-term sealing effect. At the same time, the buffer spring and buffer pad provide a certain cushioning effect, further effectively preventing the sealing strip body from loosening or falling off, thus improving practicality.

[0014] 2. This type of anti-vibration and anti-detachment automotive sealing strip, through the cooperation between the sealing strip body, adhesive layer, and first installation layer, ensures that the sealing strip can easily adhere to the installation location during installation and is not prone to failure due to long-term use. This greatly simplifies the installation process and improves installation efficiency.

[0015] 3. This type of anti-vibration and anti-detachment automotive sealing strip, during use, through the cooperation of components such as the sealing strip body, top snap strip, anti-slip layer, internal connector, anti-slip raised layer, adhesive layer, buffer spring, first mounting layer, second mounting layer, and buffer pad, not only has good sealing performance, but also effectively reduces abnormal noise caused by friction between loose parts and the car body through its unique anti-slip design, providing a quieter and more comfortable driving environment for drivers and passengers, and improving practicality. Attached Figure Description

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented, and therefore have no substantial technical significance.

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure;

[0018] Figure 2 This is a partial structural diagram;

[0019] Figure 3 A schematic diagram showing the exploded structure of the top snap-fit ​​strip and anti-slip raised layer;

[0020] Figure 4 This is a schematic diagram of the internal connectors and their connecting components.

[0021] Legend:

[0022] 1. Sealing strip body; 2. Top snap-fit ​​strip; 3. Anti-slip layer; 4. Internal connector; 5. Anti-slip raised layer; 6. Adhesive layer; 7. Buffer spring; 8. First mounting layer; 9. Second mounting layer; 10. Buffer pad. Detailed Implementation

[0023] A type of vibration-resistant automotive sealing strip, such as... Figure 1-4As shown, the device includes a sealing strip body 1, which is U-shaped. Buffer pads 10 are fixedly installed on the left and right inner walls of the sealing strip body 1. C-shaped internal connectors 4 are provided at the left and right ends of the sealing strip body 1. Several buffer springs 7 are evenly distributed and fixed on the side of the two buffer pads 10 that are close to each other. The other end of each buffer spring 7 is fixedly connected to the corresponding internal connector 4 on the side close to the inner wall of the sealing strip body 1. Second mounting layers 9 are fixedly installed on the side of the two internal connectors 4 that are close to each other. Anti-slip protrusions 5 are fixedly connected to the side of each second mounting layer 9 that is close to each other. The internal connectors 4 are made of silicone rubber. The top left and right sides of the sealing strip body 1... Each end of the sealing strip is fixedly connected with a top snap-fit ​​strip 2. Anti-slip layers 3 are fixedly connected to the sides of the two top snap-fit ​​strips 2 that are close to each other. The anti-slip layers 3 are made of silicone rubber. A first mounting layer 8 is fixedly connected to the bottom inner wall of the sealing strip body 1. An adhesive layer 6 is fixedly connected to the upper surface of the first mounting layer 8. The adhesive layer 6 is made of polyurethane (PU) adhesive. In use, through the mutual cooperation between the components such as the sealing strip body 1, top snap-fit ​​strips 2, anti-slip layers 3, internal connectors 4, anti-slip raised layers 5, adhesive layers 6, buffer springs 7, first mounting layers 8, second mounting layers 9, and buffer pads 10, the sealing strip body 1 is installed on the desired location on the car. The anti-slip layers 3, anti-slip raised layers 5, and other components work together to achieve the desired effect. The addition of the first mounting layer 5 increases the friction between the sealing strip body 1 and the installation area, effectively preventing the sealing strip body 1 from loosening or falling off even during strong vibrations while the vehicle is in motion, ensuring a long-term sealing effect. Simultaneously, the buffer spring 7 and buffer pad 10 provide cushioning, further preventing the sealing strip body 1 from loosening or falling off, improving practicality. The anti-slip raised layer 5 is wavy or serrated to further enhance the anti-slip effect. During use, the cooperation between the sealing strip body 1, the adhesive layer 6, and the first mounting layer 8 ensures that the sealing strip can be easily installed. The adhesive layer 6 uses a high-viscosity adhesive with excellent aging resistance. The sealing strip fits snugly to the installation area and is not prone to failure due to long-term use, greatly simplifying the installation process and improving installation efficiency. The inner layer of the sealing strip body 1 is equipped with a metal skeleton. The sealing strip body 1 is made of ethylene propylene diene monomer (EPDM) rubber as the main material. During use, through the cooperation between the components such as the sealing strip body 1, the top snap strip 2, the anti-slip layer 3, the internal connector 4, the anti-slip raised layer 5, the adhesive layer 6, the buffer spring 7, the first installation layer 8, the second installation layer 9, and the buffer pad 10, this automotive sealing strip not only has good sealing performance, but also effectively reduces abnormal noise caused by friction between loose parts and the car body through its unique anti-slip design, providing a quieter and more comfortable driving environment for drivers and passengers and improving practicality.

[0024] The working principle of this utility model is as follows: During use, the sealing strip body 1, top snap-fit ​​strip 2, anti-slip layer 3, internal connector 4, anti-slip raised layer 5, adhesive layer 6, buffer spring 7, first mounting layer 8, second mounting layer 9, and buffer pad 10 work together to ensure proper sealing. When using this automotive sealing strip, the sealing strip body 1 is installed on the desired location on the vehicle. The anti-slip layer 3 and anti-slip raised layer 5 increase the friction between the sealing strip body 1 and the installation location, effectively preventing loosening or detachment of the sealing strip body 1 even during strong vibrations while the vehicle is in motion, ensuring a long-term sealing effect. Simultaneously, the buffer spring 7 and buffer pad 10 provide cushioning, further preventing loosening or detachment of the sealing strip body 1 and improving practicality. The sealing strip body 1, adhesive layer 6, and first mounting layer 8 work together seamlessly. Adhesive layer 6 uses a high-viscosity adhesive with excellent aging resistance, ensuring the sealing strip easily adheres to the installation area and is less prone to failure due to long-term use, greatly simplifying the installation process and improving efficiency. Through the coordinated operation of the sealing strip body 1, top snap-fit ​​strip 2, anti-slip layer 3, internal connector 4, anti-slip raised layer 5, adhesive layer 6, buffer spring 7, first mounting layer 8, second mounting layer 9, and buffer pad 10, this automotive sealing strip not only provides excellent sealing performance but also effectively reduces noise caused by friction between loose parts and the vehicle body through its unique anti-slip design, offering a quieter and more comfortable driving environment and enhancing practicality.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A vibration-resistant automotive sealing strip, comprising a sealing strip body (1), characterized in that: The sealing strip body (1) is U-shaped. Buffer pads (10) are fixedly installed on the left and right inner walls of the sealing strip body (1). C-shaped internal connectors (4) are provided at the left and right ends of the sealing strip body (1). Several buffer springs (7) are evenly distributed and fixed on the side of the two buffer pads (10) that are close to each other. The other end of each buffer spring (7) is fixedly connected to the corresponding internal connector (4) on the side of the sealing strip body (1) that is close to the inner wall of the sealing strip body (1). A second mounting layer (9) is fixedly installed on the side of the two internal connectors (4) that are close to each other. An anti-slip protrusion layer (5) is fixedly connected on the side of each second mounting layer (9) that is close to each other. The internal connectors (4) are made of silicone rubber.

2. The anti-vibration and anti-detachment automotive sealing strip according to claim 1, characterized in that: The top left and right ends of the sealing strip body (1) are respectively fixedly connected with top snap-fit ​​strips (2).

3. The anti-vibration and anti-detachment automotive sealing strip according to claim 2, characterized in that: The two top snap-fit ​​strips (2) are respectively fixedly connected to anti-slip layers (3) on their sides that are close to each other. The anti-slip layers (3) are made of silicone rubber.

4. The anti-vibration and anti-detachment automotive sealing strip according to claim 1, characterized in that: The bottom inner wall of the sealing strip body (1) is fixedly connected to a first mounting layer (8), and the upper surface of the first mounting layer (8) is fixedly connected to an adhesive layer (6), which is made of polyurethane (PU) adhesive.

5. The anti-vibration and anti-detachment automotive sealing strip according to claim 1, characterized in that: The anti-slip raised layer (5) is distributed in a wavy or sawtooth shape to further enhance the anti-slip effect.

6. The anti-vibration and anti-detachment automotive sealing strip according to claim 1, characterized in that: The inner layer of the sealing strip body (1) is provided with a metal skeleton.

7. The anti-vibration and anti-detachment automotive sealing strip according to claim 1, characterized in that: The sealing strip body (1) is made of ethylene propylene diene monomer (EPDM) rubber as the main material.