Wear-resistant rubber sealing element
By designing a combined structure of the first and second sealing strips and incorporating multiple layers of materials, the problem of easy failure of existing automotive rubber sealing strips has been solved, achieving better sealing effect and wear resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YINGYAO NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-17
AI Technical Summary
The springs in existing automotive rubber sealing strips are prone to failure during repeated opening and closing of car doors, resulting in poor sealing performance.
The design employs a combination of a first sealing strip and a second sealing strip. The first sealing strip has a groove and multiple upwardly inclined sealing pieces, while the second sealing strip is annular and has symmetrical sealing pieces. The combination of a rubber layer, a mesh cloth, a silicone rubber fiberglass cloth, and a wear-resistant layer enhances the cushioning and sealing performance.
It improves the installation stability and cushioning performance of the seals, enhances the sealing effect, improves wear resistance, and extends the service life of the seals.
Smart Images

Figure CN224130857U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rubber seal technology, specifically a wear-resistant rubber seal. Background Technology
[0002] Rubber sealing strips can be classified according to several methods, such as cross-sectional shape, vulcanization method, application location and purpose, and materials used. Automotive sealing strips serve to fill various gaps and gaps between body components, and have functions such as shock absorption, waterproofing, dustproofing, sound insulation, and decoration, improving the comfort of the driving experience and protecting the vehicle body.
[0003] A current publication (CN216915495U) discloses an automotive rubber sealing strip, comprising a sealing strip body and an elastic pad. The inner wall of the sealing strip body is fitted with a first sealing block and a second sealing block. A buffer pad is installed at the top of the sealing strip body, and a groove is formed at the bottom of the buffer pad, with an elastic pad installed inside the groove. This automotive rubber sealing strip improves the shock absorption effect of the car window glass through the design of the buffer pad and the elastic pad. Simultaneously, the spring body design facilitates shock absorption of the car window glass through deformation under compression, preventing severe vibrations that could easily damage the car window glass.
[0004] Existing sealing strips use springs for shock absorption. However, due to the limited lifespan of springs, the sealing strips are prone to failure during repeated opening and closing of the car doors, resulting in relatively poor sealing performance. To improve the sealing performance, we propose a wear-resistant rubber seal. Utility Model Content
[0005] The purpose of this invention is to provide a wear-resistant rubber seal to solve the problems in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant rubber seal, comprising a first sealing strip and a second sealing strip, wherein the first sealing strip has a second sealing strip at its top, the first sealing strip has a groove, and a plurality of first sealing pieces are disposed within the groove of the first sealing strip, and a plurality of second sealing pieces are disposed on the outer side of the second sealing strip; both the first and second sealing strips comprise a rubber layer, a mesh cloth, a silicone rubber fiber cloth, and a wear-resistant layer, wherein the mesh cloth is disposed in the middle of the rubber layer, and silicone rubber fiber cloth is disposed on both sides of the rubber layer, and a wear-resistant layer is disposed on the side of the silicone rubber fiber cloth away from the rubber layer.
[0007] Preferably, the first sealing strip is arched in shape and has a hollow interlayer.
[0008] Preferably, the hollow interlayer is arched.
[0009] Preferably, the first sealing strip is provided with four first sealing pieces in the slot, the four first sealing pieces are arranged symmetrically in pairs, and the first sealing pieces are inclined inward and upward.
[0010] Preferably, the cross-sectional shape of the second sealing strip is annular, and four second sealing pieces are provided on the outer side of the second sealing strip, with the four second sealing pieces arranged symmetrically in pairs.
[0011] Preferably, the first sealing strip, the first sealing sheet, the second sealing strip, and the second sealing sheet are an integral structure.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] The first sealing strip is inclined inward and upward. The cooperation between the first sealing strip and the first sealing strip facilitates the installation of the seal and prevents it from easily falling off after installation. The second sealing strip has a circular cross-section, and four second sealing strips are arranged symmetrically in pairs on its outer side. The combination of the tubular second sealing strip and multiple second sealing strips improves both its cushioning and sealing performance. The first sealing strip has a hollow interlayer, which is arched in shape. This hollow interlayer provides cushioning and sound insulation. The combination of the hollow interlayer in the first sealing strip and the tubular second sealing strip significantly enhances the cushioning performance of the seal.
[0014] The use of mesh cloth and silicone rubber fiberglass cloth improves the impact resistance of the seal, while the wear-resistant layer improves the wear resistance of the seal. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a cross-sectional view of the present invention;
[0018] Figure 3 This is a schematic diagram of the structural composition of the sealing strip of this utility model.
[0019] In the figure: 1. First sealing strip; 2. First sealing sheet; 3. Hollow interlayer; 4. Second sealing strip; 5. Second sealing sheet; 6. Slot; 11. Rubber layer; 12. Mesh cloth; 13. Silicone rubber fiberglass cloth; 14. Wear-resistant layer. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.
[0021] Please see Figure 1-3 In this embodiment of the present invention, a wear-resistant rubber seal includes a first sealing strip 1 and a second sealing strip 4. The first sealing strip 1 has a second sealing strip 4 at its top and a groove 6. Multiple first sealing pieces 2 are disposed within the groove 6 of the first sealing strip 1. Multiple second sealing pieces 5 are disposed on the outer side of the second sealing strip 4. The first sealing strip 1, first sealing pieces 2, second sealing strip 4, and second sealing pieces 5 are an integral structure. The first sealing strip 1 has four first sealing pieces 2 disposed within the groove 6, arranged symmetrically in pairs. The first sealing pieces 2 are inclined inwards and upwards. The cooperation between the first sealing strip 1 and the first sealing pieces 2 facilitates the installation of the seal and prevents it from falling off after installation. The second sealing strip 4 has a circular cross-sectional shape, and four second sealing pieces 5 are disposed on its outer side, arranged symmetrically in pairs. The combination of the tubular second sealing strip 4 and the multiple second sealing pieces 5 improves both its buffering performance and its sealing performance.
[0022] The first sealing strip 1 is arched in shape and has a hollow interlayer 3. The hollow interlayer 3 is arched in shape and can provide certain buffering and sound insulation performance. The first sealing strip 1 with hollow interlayer 3, together with the tubular second sealing strip 4, greatly improves the buffering performance of the sealing element.
[0023] Both the first sealing strip 1 and the second sealing strip 4 include a rubber layer 11, a mesh cloth 12, a silicone rubber fiberglass cloth 13, and a wear-resistant layer 14. The mesh cloth 12 is provided in the middle of the rubber layer 11, and silicone rubber fiberglass cloth 13 is provided on both sides of the rubber layer 11. The wear-resistant layer 14 is provided on the side of the silicone rubber fiberglass cloth 13 away from the rubber layer 11. The mesh cloth 12 and silicone rubber fiberglass cloth 13 improve the impact resistance of the seal, and the wear-resistant layer improves the wear resistance of the seal.
[0024] The working principle of this utility model is as follows: The first sealing sheet 2 is inclined inward and upward. Through the cooperation of the first sealing strip 1 and the first sealing sheet 2, the installation of the sealing element is convenient and it is not easy to fall off after installation; The cross-sectional shape of the second sealing strip 4 is circular, and four second sealing sheets 5 are arranged on the outer side of the second sealing strip 4. The four second sealing sheets 5 are arranged symmetrically in pairs. The combination of the cylindrical second sealing strip 4 and multiple second sealing sheets 5 improves both its buffering performance and its sealing performance; The first sealing strip 1 has a hollow interlayer 3. The hollow interlayer 3 is arched in shape. The hollow interlayer 3 can play a certain role in buffering and sound insulation. The first sealing strip 1 with the hollow interlayer 3, together with the tubular second sealing strip 4, greatly improves the buffering performance of the sealing element;
[0025] The use of mesh cloth 12 and silicone rubber glass fiber cloth 13 improves the impact resistance of the seal, and the wear-resistant layer improves the wear resistance of the seal.
[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A wear-resistant rubber seal, comprising a first sealing strip (1) and a second sealing strip (4), characterized in that: The first sealing strip (1) is provided with a second sealing strip (4) at the top. The first sealing strip (1) has a slot (6). The first sealing strip (1) is provided with a plurality of first sealing pieces (2) in the slot (6). The second sealing strip (4) is provided with a plurality of second sealing pieces (5) on the outside. The first sealing strip (1) and the second sealing strip (4) both include a rubber layer (11), a mesh cloth (12), a silicone rubber fiber cloth (13) and a wear-resistant layer (14). The mesh cloth (12) is provided in the middle of the rubber layer (11), and silicone rubber fiber cloth (13) is provided on both sides of the rubber layer (11). The wear-resistant layer (14) is provided on the side of the silicone rubber fiber cloth (13) away from the rubber layer (11).
2. A wear resistant rubber seal according to claim 1, characterised in that: The first sealing strip (1) is arched in shape and has a hollow interlayer (3).
3. A wear resistant rubber seal according to claim 2, wherein: The hollow interlayer (3) is arched in shape.
4. A wear resistant rubber seal according to claim 1, wherein: The first sealing strip (1) is located in the slot (6) and has four first sealing pieces (2). The four first sealing pieces (2) are arranged symmetrically in pairs, and the first sealing pieces (2) are inclined inward and upward.
5. A wear resistant rubber seal according to claim 1, wherein: The cross-sectional shape of the second sealing strip (4) is circular. Four second sealing pieces (5) are provided on the outer side of the second sealing strip (4), and the four second sealing pieces (5) are arranged symmetrically in pairs.
6. A wear resistant rubber seal according to claim 1, wherein: The first sealing strip (1), the first sealing sheet (2), the second sealing strip (4), and the second sealing sheet (5) are an integral structure.