A rubber sealing strip

Abstract

This utility model discloses a rubber sealing strip in the field of sealing strips, including an integrally molded sealing body. One end of the sealing body extends outward to form a bent portion, which extends along the length direction of the sealing body. Another end of the sealing body extends outward to form a fixing portion, which extends along the length direction of the sealing body. One end of the bent portion extends outward to form a connecting portion, which extends along the length direction of the sealing body. One end of the fixing portion extends outward to form a positioning portion, which extends along the length direction of the sealing body. This utility model's rubber sealing strip achieves the dual functions of multi-level sealing and mechanical engagement through the engaging groove, sealing groove, and fixing groove formed by the bent portion, fixing portion, and sealing body. The engaging groove can precisely fit with the installation part to prevent the sealing strip from falling off. The sealing groove and fixing groove fill the gap through elastic deformation, improving the sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of sealing strips, specifically a rubber sealing strip. Background Technology

[0002] Rubber sealing strips are elastic sealing elements widely used in construction, automotive, home appliances, and industrial equipment. Their core function is to fill joint gaps through elastic deformation of the material, achieving dustproof, waterproof, soundproof, and heat insulation effects. Traditional rubber sealing strips typically use a single-layer lip or solid strip structure, relying on interference fit or adhesive for fixation. However, in practical applications, they have the following drawbacks:

[0003] Traditional sealing strips are mostly fixed by direct pressing into the mounting groove or by adhesive bonding, lacking a mechanical locking structure. Under long-term exposure to vibration, thermal expansion and contraction, or external tension, the adhesive is prone to aging and failure. The press-fit structure, due to insufficient friction, makes the rubber sealing strip easy to detach. Traditional sealing strips rely solely on a single sealing lip to adhere to the contact surface, which can easily create gaps under pressure fluctuations or deformation. This poses a significant risk of leakage, especially in low-pressure differential scenarios (such as door and window sealing), resulting in poor sealing performance of the rubber sealing strip. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a rubber sealing strip that can effectively solve the technical problems of existing sealing strips being easy to fall off and having poor sealing performance.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a rubber sealing strip, comprising an integrally molded sealing body, one end of the sealing body extending outward to form a bent portion, the bent portion extending along the length direction of the sealing body, one end of the sealing body extending outward to form a fixing portion, the fixing portion extending along the length direction of the sealing body, one end of the bent portion extending outward to form a connecting portion, the connecting portion extending along the length direction of the sealing body, one end of the fixing portion extending outward to form a positioning portion, the positioning portion extending along the length direction of the sealing body, an engaging groove formed between the bent portion and the fixing portion, the engaging groove extending along the length direction of the sealing body, a sealing groove formed between the bent portion and the sealing body, and a fixing groove formed between the fixing portion and the sealing body, the fixing groove extending along the length direction of the sealing body.

[0006] Furthermore, the surface of the sealing body is recessed inward to form several limiting grooves, and adjacent limiting grooves are evenly distributed. The limiting grooves extend along the length direction of the sealing body.

[0007] Furthermore, the surface of the sealing body protrudes outward to form two reinforcing plates, which are symmetrically arranged and extend along the length of the sealing body.

[0008] Furthermore, a connector is provided at one end of both the bending portion and the fixing portion, and the connector extends along the length direction of the sealing body.

[0009] Furthermore, the connector is a hollow structure, and the cross-section of the connector is pentagonal.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a rubber sealing strip, which achieves the dual functions of multi-level sealing and mechanical locking through the engagement groove, sealing groove and fixing groove formed by the bending part, fixing part and sealing body. The engagement groove can be precisely fitted with the installation part to prevent the sealing strip from falling off. The sealing groove and fixing groove fill the gap through elastic deformation to improve the sealing performance. Attached Figure Description

[0011] Figure 1 This is a perspective view of a rubber sealing strip according to the present invention;

[0012] Figure 2 This is a front view of a rubber sealing strip according to the present invention.

[0013] Numbering on the map:

[0014] 1-Sealing body; 2-Connector; 3-Reinforcing plate; 4-Limiting groove; 5-Bending part; 6-Connecting part; 7-Fixing part; 8-Positioning part; 9-Interlocking groove; 10-Fixing groove; 11-Sealing groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] The following is combined Figure 1 and Figure 2 A detailed description of a rubber sealing strip according to this utility model is provided:

[0017] A rubber sealing strip includes an integrally molded sealing body 1. One end of the sealing body 1 extends outward to form a bent portion 5, which extends along the length direction of the sealing body 1. One end of the sealing body 1 extends outward to form a fixing portion 7, which extends along the length direction of the sealing body 1. One end of the bent portion 5 extends outward to form a connecting portion 6, which extends along the length direction of the sealing body 1. One end of the fixing portion 7 extends outward to form a positioning portion 8, which extends along the length direction of the sealing body 1. An engaging groove 9 is formed between the bent portion 5 and the fixing portion 7, which extends along the length direction of the sealing body 1. A sealing groove 11 is formed between the bent portion 5 and the sealing body 1. A fixing groove 10 is formed between the fixing portion 7 and the sealing body 1, which extends along the length direction of the sealing body 1.

[0018] The surface of the sealing body 1 is recessed inward to form several limiting grooves 4, and adjacent limiting grooves 4 are evenly distributed. The limiting grooves 4 extend along the length direction of the sealing body 1. The surface of the sealing body 1 protrudes outward to form two reinforcing plates 3, which are symmetrically arranged. The reinforcing plates 3 extend along the length direction of the sealing body 1. One end of the bending part 5 and the fixing part 7 is provided with a connector 2. The connector 2 extends along the length direction of the sealing body 1. The connector 2 has a hollow structure and the cross-section of the connector 2 is pentagonal.

[0019] In this embodiment, the equidistantly distributed limiting grooves 4 on the surface of the sealing body 1 facilitate the installation and fixing of the rubber sealing strip through physical interlocking. The symmetrically arranged reinforcing plates 3 form a support structure, providing bidirectional bending stiffness in the direction perpendicular to the sealing body 1, preventing irreversible deformation of the sealing strip due to long-term pressure or high-frequency vibration, and extending its service life. The pentagonal hollow connector 2 added to the ends of the bending part 5 and the fixing part 7 realizes modular splicing of the sealing strip through standardized interface design. The pentagonal cross section optimizes the torsional stiffness and axial tensile strength. The pentagonal connector 2 generates controllable deformation under pressure, compensating for manufacturing tolerances or installation errors, and ensuring continuous contact of the sealing surface.

[0020] In this embodiment, a rubber sealing strip achieves the dual functions of multi-level sealing and mechanical engagement through the engagement groove 9, sealing groove 11, and fixing groove 10 formed by the bending part 5, fixing part 7, and sealing body 1. The engagement groove 9 can be precisely fitted with the installation part to prevent the sealing strip from falling off. The sealing groove 11 and fixing groove 10 fill the gap through elastic deformation to improve the sealing performance.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rubber sealing strip, comprising a sealing body integrally molded, characterized in that: One end of the sealing body extends outward to form a bent portion, which extends along the length of the sealing body. Another end of the sealing body extends outward to form a fixing portion, which extends along the length of the sealing body. One end of the bent portion extends outward to form a connecting portion, which extends along the length of the sealing body. One end of the fixing portion extends outward to form a positioning portion, which extends along the length of the sealing body. An engagement groove is formed between the bent portion and the fixing portion, which extends along the length of the sealing body. A sealing groove is formed between the bent portion and the sealing body. A fixing groove is formed between the fixing portion and the sealing body, which extends along the length of the sealing body.

2. The rubber sealing strip according to claim 1, characterized in that: The surface of the sealing body is recessed inward to form several limiting grooves, and adjacent limiting grooves are evenly distributed. The limiting grooves extend along the length direction of the sealing body.

3. A rubber sealing strip according to claim 1, characterized in that: The surface of the sealing body protrudes outward to form two reinforcing plates, which are symmetrically arranged and extend along the length of the sealing body.

4. A rubber sealing strip according to any one of claims 1-3, characterized in that: Both the bending portion and the fixing portion are provided with a connector at one end, and the connector extends along the length of the sealing body.

5. A rubber sealing strip according to claim 4, characterized in that: The connector is a hollow structure, and its cross-section is pentagonal.

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