Arc-shaped profiled composite gel handrail seal

Abstract

The utility model provides a kind of arc profile composite gel handrail sealing strip, the overall arc shape of sealing strip body, sealing strip body includes hard glue part and soft glue part, the cross section of hard glue part is dovetail shape structure, the cross section of soft glue part is circular arc structure, hard glue part and soft glue part are integrally formed by two-color extrusion, there is a clamping groove on the dovetail shape structure of hard glue part, clamping groove is matched with the second cover plate of handrail and is fixedly connected, so that hard glue part is rigidly fixed with the second cover plate;Soft glue layer is circular arc structure, enhances dynamic sealing adaptability;The cross section curvature of sealing strip body whole is matched with contact surface, significantly reduces the overlapping contact amount when closing, reduces friction resistance and abrasion risk, reduces closed friction, while improving sealing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of automotive armrest technology, and in particular relates to an arc-shaped contour composite colloid armrest sealing strip. Background Technology

[0002] When the vehicle's armrest box is designed as a split armrest, there will be a certain gap between the two armrests when they are closed. To prevent dust from entering the armrest box through the gap between the two armrests, a sealing strip will be installed on the side of each armrest.

[0003] The rectangular or planar contour design of traditional sealing strips can easily lead to excessive overlap between components when closed, increasing frictional resistance and causing wear on the sealing surface over long-term use. In addition, a single material structure makes it difficult to balance fixed strength and sealing flexibility. Therefore, this utility model proposes an arc-shaped contour composite colloidal handrail sealing strip to solve the above problems. Utility Model Content

[0004] This invention provides an arc-shaped contour composite colloidal handrail sealing strip, which aims to solve the problems mentioned in the background art.

[0005] This utility model is achieved as follows: an arc-shaped contour composite colloidal handrail sealing strip, including a sealing strip body;

[0006] The sealing strip body is arc-shaped in general. The sealing strip body includes a hard rubber part and a soft rubber part. The cross-section of the hard rubber part is a dovetail structure, and the cross-section of the soft rubber part is an arc structure. The hard rubber part and the soft rubber part are integrally formed by two-color extrusion.

[0007] Preferably, the hard rubber part is made of either EPDM rubber or thermoplastic elastomer material.

[0008] Preferably, the soft rubber part is made of silicone rubber.

[0009] Preferably, the dovetail-shaped structure of the hard rubber part has a slot, which matches and is fixedly engaged with the second cover plate of the handrail.

[0010] Preferably, the cross-sectional thickness of the hard rubber portion is greater than the cross-sectional thickness of the soft rubber portion.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The sealing strip body is arc-shaped and consists of a hard rubber part and a soft rubber part. The hard rubber part has a dovetail-shaped cross-section, while the soft rubber part has a circular arc-shaped cross-section. The hard rubber part and the soft rubber part are integrally molded by two-color extrusion. The dovetail-shaped structure of the hard rubber part has a groove that matches and locks into place with the second cover plate of the handrail, thus rigidly fixing the hard rubber part to the second cover plate. The soft rubber layer has a circular arc-shaped structure, which enhances the dynamic sealing adaptability. The overall cross-sectional curvature of the sealing strip body matches the contact surface, significantly reducing the amount of overlapping contact when closed, reducing frictional resistance and wear risk, reducing closing friction, and improving sealing efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the sealing strip and handrail after assembly of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the sealing strip and handrail after assembly of this utility model;

[0015] Figure 3 This is a schematic diagram of the sealing strip body structure of this utility model;

[0016] Figure 4 This is a cross-sectional view of the sealing strip body structure of this utility model;

[0017] Figure 5 This is a cross-sectional view of the sealing strip and handrail of this utility model after assembly.

[0018] In the picture:

[0019] 1. Sealing strip body; 2. Hard rubber part; 3. Soft rubber part; 4. Covering layer; 5. Foaming layer; 6. First cover plate; 7. Second cover plate. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0022] 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.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figures 1 to 5 This utility model provides a technical solution: an arc-shaped contour composite colloid handrail sealing strip, including a sealing strip body 1; the sealing strip body 1 is arc-shaped in whole, and the sealing strip body 1 includes a hard rubber part 2 and a soft rubber part 3. The cross-section of the hard rubber part 2 is a dovetail structure, and the cross-section of the soft rubber part 3 is an arc-shaped structure. The hard rubber part 2 and the soft rubber part 3 are integrally formed by two-color extrusion.

[0026] The hard rubber part 2 is made of either EPDM rubber or thermoplastic elastomer; the soft rubber part 3 is made of silicone rubber.

[0027] The dovetail-shaped structure of the hard rubber part 2 has a slot that matches and is fixedly engaged with the second cover plate 7 of the handrail; the cross-sectional thickness of the hard rubber part 2 is greater than the cross-sectional thickness of the soft rubber part 3.

[0028] In this embodiment, a sealing strip body 1 is provided on the side of each of the two handrails, as shown in the attached document. Figure 5 The handrail includes a first cover plate 6 and a second cover plate 7. The second cover plate 7 is located below the first cover plate 6. The top of the first cover plate 6 is provided with a foam layer 5. The foam layer 5 and the outer wall of the first cover plate 6 are covered with a covering layer 4.

[0029] The dovetail-shaped structure of the hard rubber part 2 has a slot that matches and is fixedly engaged with the second cover plate 7 of the handrail, so that the hard rubber part 2 and the second cover plate 7 are rigidly fixed; the soft rubber part 3 has an arc-shaped structure to enhance the dynamic sealing adaptability; the sealing strip body 1 is arc-shaped as a whole, and the cross-sectional curvature matches the contact surface, which significantly reduces the amount of overlapping contact when closing, and reduces frictional resistance and wear risk; in this embodiment, the sealing strip body 1 reduces closing friction and improves sealing efficiency.

[0030] The rigid rubber part 2 is made of either EPDM rubber or thermoplastic elastomer. EPDM rubber has excellent weather resistance, heat resistance and aging resistance, making it suitable for long-term outdoor use. It has outstanding mechanical properties and adjustable hardness, and is often used to make the support structure of sealing strips. Thermoplastic elastomer (TPV / TPE) combines the elasticity of rubber and the processability of plastic. It has a lower cost and is suitable for extrusion molding of complex shapes.

[0031] The soft rubber part 3 is made of silicone rubber, which is highly flexible, elastic, has excellent sealing performance, and strong weather resistance, making it suitable for outdoor environments.

[0032] The working principle and usage process of this utility model are as follows: The sealing strip body 1 is arc-shaped, and includes a hard rubber part 2 and a soft rubber part 3. The cross-section of the hard rubber part 2 is a dovetail structure, and the cross-section of the soft rubber part 3 is an arc-shaped structure. The hard rubber part 2 and the soft rubber part 3 are integrally formed by two-color extrusion. There is a groove on the dovetail structure of the hard rubber part 2, which matches and is fixedly engaged with the second cover plate 7 of the handrail, so that the hard rubber part 2 and the second cover plate 7 are rigidly fixed. The soft rubber part 3 has an arc-shaped structure, which enhances the dynamic sealing adaptability. The overall cross-sectional curvature of the sealing strip body 1 matches the contact surface, which significantly reduces the amount of overlapping contact when closing, reduces frictional resistance and wear risk, reduces closing friction, and improves sealing efficiency.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A curved contour composite colloidal handrail sealing strip, characterized in that: Includes the sealing strip body (1); The sealing strip body (1) is arc-shaped. The sealing strip body (1) includes a hard rubber part (2) and a soft rubber part (3). The cross-section of the hard rubber part (2) is a dovetail structure, and the cross-section of the soft rubber part (3) is an arc structure. The hard rubber part (2) and the soft rubber part (3) are integrally formed by two-color extrusion.

2. The arc-shaped contour composite colloidal handrail sealing strip according to claim 1, characterized in that: The hard rubber part (2) is made of either EPDM rubber or thermoplastic elastomer material.

3. The arc-shaped contour composite colloidal handrail sealing strip according to claim 1, characterized in that: The soft rubber part (3) is made of silicone rubber.

4. The arc-shaped contour composite colloidal handrail sealing strip according to claim 1, characterized in that: The dovetail-shaped structure of the hard rubber part (2) has a slot that matches and is fixedly engaged with the second cover plate (7) of the handrail.

5. The arc-shaped contour composite colloidal handrail sealing strip according to claim 1, characterized in that: The cross-sectional thickness of the hard rubber part (2) is greater than the cross-sectional thickness of the soft rubber part (3).

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