A type of rubber plug for wiring harnesses, such as high-mounted brake lights.

Abstract

This utility model discloses a rubber plug for wiring harnesses such as high-mounted brake lights. The plug (1) is divided into a plug head (101) and a plug body (102), which are connected. The plug body (102) has a W-shaped cross-section and an annular clearance cavity (2) on its inner side. The plug head (101) is frustoconical, and the end of the plug head (101) with a larger diameter is connected to the plug body (102). The body (102) is frustum-shaped. The side with the larger diameter of the body (102) is connected to the plug head (101). The cross-sectional shape of the clearance cavity (2) is trapezoidal. The clearance cavity (2) is located on the side where the body (102) is connected to the plug head (101). By setting clearance space in the rubber stopper (1), the body of the rubber stopper (1) has greater compressibility without affecting the original sealing performance. This facilitates the assembly structure, reduces material usage, and lowers production costs.

Description

Technical Field

[0001] This utility model belongs to the field of automotive lighting technology. Specifically, this utility model relates to a wire harness plug for high-mounted brake lights and other similar products. Background Technology

[0002] For automotive lighting fixtures such as high-mounted brake lights with wiring harnesses, a wire-passing plug is typically used. To ensure the internal sealing of the light fixture while also providing power, the wire harness passes through the inside of the plug, achieving both a sealing effect and allowing the wire harness to pass through.

[0003] A patent application with patent number 202122410442.1, published on March 18, 2022, discloses a wire guide rubber plug, belonging to the field of automotive parts technology. It solves the problem in existing technologies where the movement of the wire harness within the rubber sleeve is extremely difficult after an interference fit between the wire harness and the sleeve. This wire guide rubber plug includes a plug body with an inner cavity extending through both ends. One end of the plug body has its edge bent inward and extended inward to form a rubber sleeve for the wire harness to pass through. A waterproof ring is provided on the inner wall of the rubber sleeve to form a sealing contact with the wire harness passing through it. This invention has the advantage of ensuring the sealing performance of the wire guide rubber plug while making it easier to pull the wire harness.

[0004] For automotive lighting fixtures such as high-mounted brake lights with wiring harnesses, the plugs used for wiring harnesses are generally designed with less clearance and a thicker inner side to ensure waterproofing. However, this design can lead to installation difficulties and low production efficiency, while the design with less clearance and a thicker inner side results in higher production costs. Utility Model Content

[0005] This utility model aims to

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a plug for passing wires through a high-mounted brake light or other wiring harness, wherein the plug is divided into a plug head and a plug body, the plug head and the plug body are connected, the cross-section of the plug body is W-shaped, and the inner side of the plug body is provided with a circularly mounted clearance cavity.

[0007] The stopper is truncated cone-shaped, and the end with the larger diameter of the stopper is connected to the stopper body.

[0008] The smaller end of the plug has a groove.

[0009] The cross-sectional shape of the avoidance cavity is trapezoidal.

[0010] The plug body is provided with a wire passage hole.

[0011] The plug body is truncated cone-shaped, and the side with the larger diameter of the plug body is connected to the plug head.

[0012] The clearance cavity is located on the side where the plug body and the plug head are connected.

[0013] The plug has a protrusion inside.

[0014] The side slope of the plug is less than the side slope of the clearance cavity.

[0015] The technical advantages of this invention are as follows: by setting an clearance space inside the rubber stopper, the rubber stopper body has greater compressibility without affecting the original sealing performance, which facilitates the assembly structure, reduces material usage, and lowers production costs. Attached Figure Description

[0016] This manual includes the following figures, which illustrate the following:

[0017] Figure 1 This is a schematic diagram of the structure of a high-position brake light and other wire harness passing plug according to the present invention;

[0018] Figure 2 for Figure 1 A cross-sectional view of a rubber plug for a high-mounted brake light and other wiring harness.

[0019] The markings in the diagram are: 1. Rubber stopper; 101. Stopper head; 102. Stopper body; 2. Clearance cavity; 3. Groove; 4. Wire hole; 5. Boss. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution, and to facilitate its implementation.

[0021] Please see Figure 1-2 A type of plug for wiring harnesses, such as high-mounted brake lights, is provided. The plug 1 is divided into a plug head 101 and a plug body 102, which are connected together. The plug body 102 has a W-shaped cross-section and an annular clearance cavity 2 is provided on the inner side of the plug body 102. By providing clearance space in the plug 1, the plug body 1 has greater compressibility without affecting the original sealing performance, which facilitates the assembly structure, reduces material usage, and lowers production costs.

[0022] The stopper 101 is truncated cone-shaped, with the larger diameter end of the stopper 101 connected to the stopper body 102. The truncated cone-shaped stopper 101 is economical, and the connection between the larger end of the stopper 101 and the stopper body 102 can improve the strength of the connection.

[0023] The smaller end of the plug 101 has a groove 3; this reduces the overall thickness of the middle part of the rubber plug 1, lowers the cost, and also ensures a good seal.

[0024] The cross-sectional shape of the clearance cavity 2 is trapezoidal. Due to the trapezoidal characteristics of being narrow at the top and wide at the bottom, the part of the rubber plug 1 where the clearance cavity 2 is located has a thicker wall on one side and a thinner wall on the other side, so that the cross-section of the rubber plug 1 forms a triangular shape. On the one hand, this can ensure the strength of the connection point to avoid breakage, and on the other hand, it can make the thinner side of the rubber plug 1 wall easier to bend, which is convenient for assembly.

[0025] The plug body 102 is provided with a wire hole 4; the wire hole 4 is used for inserting wires.

[0026] The plug body 102 is truncated cone-shaped, and the side with the larger diameter of the plug body 102 is connected to the plug head 101; the truncated cone shape of the plug body 102 facilitates the insertion of the rubber plug 1 body.

[0027] The clearance cavity 2 is located on the side where the plug body 102 is connected to the plug head 101. The side of the plug body 102 near the plug head 101 will form a wedge-shaped structure facing the plug head 101. Since the plug body 102 is frustum-shaped, the wedge-shaped structure will be squeezed when the rubber plug 1 is inserted. The bottom of the plug body 102 will also be squeezed and twisted towards the plug head 101 due to the presence of the clearance cavity 2, making it easier to assemble the rubber plug 1 into a narrower hole.

[0028] The plug 101 has a boss 5 inside; this increases the strength of the wire hole end and reduces the occurrence of cracks.

[0029] The slope of the side of the plug body 102 is less than that of the side of the clearance cavity 2, ensuring that a wedge-shaped structure is formed around the plug body 102.

[0030] The included angle between the two sides of the frustum-shaped plug 101 is 76.35°. The widest diameter of the plug body 102 is 25.8 mm. The overall thickness of the rubber plug 1 is 9 mm. The thickness of the plug body 102 is 5.3 mm. The distance between the bottom inner wall of the clearance cavity 2 and the bottom wall of the plug body 102 is 2.4 mm. The vertical distance between the wedge-shaped end of the side of the plug body 102 and the bottom wall of the plug body 102 is 5.2 mm. The diameter between the bottom breakpoints of the clearance cavity 2 inside the plug body 102 is 16.1 mm.

[0031] When the rubber stopper 1 is inserted, due to the squeezing of the inner wall of the insertion hole, the wedge structure of the stopper body 102 near the stopper head 101 is squeezed. Since the stopper body 102 is frustum-shaped, the wedge structure will be squeezed when the rubber stopper 1 is inserted. Furthermore, the bottom of the stopper body 102 will be squeezed and twisted towards the stopper head 101 due to the presence of the relief cavity 2, making it easier to assemble the rubber stopper 1 into the narrower hole.

[0032] The technical advantages of this utility model are as follows: by setting an avoidance space inside the rubber stopper 1, the rubber stopper 1 body has greater compressibility without affecting the original sealing performance, which facilitates the assembly structure, reduces material usage, and lowers production costs.

[0033] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A type of rubber plug for passing wires through a wiring harness, such as a high-mounted brake light, characterized in that: The rubber stopper (1) is divided into a stopper head (101) and a stopper body (102). The stopper head (101) and the stopper body (102) are connected. The cross-section of the stopper body (102) is W-shaped. The inner side of the stopper body (102) is provided with a circularly installed clearance cavity (2).

2. The high-mounted brake light and other wiring harness cable guide plug according to claim 1, characterized in that: The plug (101) is frustum shaped, and the end of the plug (101) with a larger diameter is connected to the plug body (102).

3. The high-mounted brake light and other wiring harness cable guide plug according to claim 2, characterized in that: The plug (101) has a groove (3) at its smaller end.

4. The high-mounted brake light and other wiring harness-guided plug according to claim 1, characterized in that: The cross-sectional shape of the avoidance cavity (2) is trapezoidal.

5. A high-mounted brake light and other wiring harness-guided plug according to claim 1 or 2, characterized in that: The plug body (102) is provided with a wire hole (4).

6. The high-mounted brake light and other wire harness cable guide plug according to claim 1, characterized in that: The plug body (102) is frustum shaped, and the side with the larger diameter of the plug body (102) is connected to the plug head (101).

7. A high-mounted brake light and other wiring harness plug according to claim 6, characterized in that: The clearance cavity (2) is located on the side where the plug body (102) is connected to the plug head (101).

8. A high-mounted brake light and other wiring harness plug according to claim 3, characterized in that: The plug (101) has a boss (5) inside.

9. A high-mounted brake light and other wire harness cable guide plug according to claim 7, characterized in that: The side slope of the plug body (102) is less than the side slope of the clearance cavity (2).

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