Fixed sealing structure of fixed wire rubber plug

Abstract

The utility model relates to the technical field of wiring harness structure, specifically disclose a wire fixing rubber plug fixed and sealed cooperation structure, including wire fixing rubber plug body and connecting piece, a plurality of wiring harness holes are vertically penetrated and opened on wire fixing rubber plug body, the bottom of wire fixing rubber plug body outer wall is opened to the upward inclined slot, the inclined slot makes wire fixing rubber plug body outer wall from top to bottom form has vertical part and inclined part, the connecting place of vertical part and inclined part wire fixing rubber plug body circumference is opened a ring groove for the end of connecting piece and enters, the end of connecting piece is formed with a ring of circumferential closure sealing rib upwards, wire fixing rubber plug body still has the sealing groove that is located in the ring groove and is used for sealing rib and is inserted and is stuck in, still be formed with a ring of circumferential closure waterproof rib upwards on the connecting piece outside ring groove, solved the traditional wire fixing rubber plug in practical application only for pursuing the convenience of installation, lead to the pulling force shortage, waterproof tightness is poor, and further easily appears the problem such as pulling off and water.

Description

Technical Field

[0001] This application relates to the field of wire harness structure technology, and specifically discloses a wire-fixing rubber plug fixing and sealing structure. Background Technology

[0002] Automotive headlights can be categorized into three types based on their sealing performance: self-sealing, semi-sealing, and unsealing. For self-sealing headlights that need to be illuminated, a wiring harness connecting to the vehicle is required. This harness must run through both the inner and outer sides of the headlight, necessitating a sealing element between them for the wires to pass through. Among various sealing elements, wire-fixing rubber plugs are widely used due to their broad application range and relatively low cost. As shown in the attached diagram of the instruction manual. Figure 3 and Figure 4 As shown, the existing fixed-line rubber plug sealing and mating structure includes a fixed-line rubber plug body and a connector connected to the fixed-line rubber plug body. Several wire harness openings are vertically through the fixed-line rubber plug body. An inclined groove is opened upward at the bottom of the outer wall of the fixed-line rubber plug body so that the outer wall of the fixed-line rubber plug body forms a vertical part and an inclined part from top to bottom. At the connection between the vertical part and the inclined part, the fixed-line rubber plug body also has a ring groove circumferentially opened around the axis. The inner wall surface of the ring groove is smooth.

[0003] The aforementioned wire-fixing plugs are designed for ease of installation in practical applications, resulting in insufficient pull-out force and poor waterproof sealing, which can easily lead to problems such as pull-out and water ingress.

[0004] This utility model provides a fixed sealing and fitting structure for the wire plug to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to solve the problem that traditional wire-fixing plugs, in practical applications, only pursue ease of installation, resulting in insufficient pull-out force and poor waterproof sealing, which in turn easily leads to problems such as pull-out and water ingress.

[0006] To achieve the above objectives, the basic solution of this utility model provides a fixed sealing and fitting structure for a wire-fixing rubber plug, including a wire-fixing rubber plug body and a connector. The wire-fixing rubber plug body has several vertically penetrating wire harness holes. The bottom of the outer wall of the wire-fixing rubber plug body has an upward-facing inclined groove. The inclined groove forms a vertical part and an inclined part on the outer wall of the wire-fixing rubber plug body from top to bottom. At the connection between the vertical part and the inclined part, a ring groove is formed around the circumference of the wire-fixing rubber plug body for the end of the connector to extend into. The end of the connector is formed with a circumferentially closed sealing rib. The body of the wire-fixing plug also has a sealing groove located in the annular groove, into which the sealing rib extends and is locked. The connector located outside the annular groove is also formed with a circumferentially closed waterproof rib.

[0007] Furthermore, a circumferentially closed force groove is formed on the top surface of the wire-fixing plug body. The force groove is located on the wire-fixing plug body between the annular groove and the outermost wire harness hole. The inner walls on both sides of the force groove are inclined, and the included angle formed by the bottom of the inclined inner walls on both sides ranges from 30° to 45°.

[0008] Furthermore, the fixed rubber plug body has a circumferentially closed force-bearing platform formed on its outer extension upward.

[0009] Furthermore, the height of the waterproof reinforcement bar is greater than or equal to half the height of the support platform.

[0010] Furthermore, a main inclined guide surface is formed on the inner side of the top of the sealing rib, and a secondary inclined guide surface is formed in conjunction with the main inclined guide surface of the sealing groove. The inclination angle of the main inclined guide surface is greater than or equal to the inclination angle of the secondary inclined guide surface of 5°.

[0011] Furthermore, the inclined portion and the sealing groove are connected at a bottom bevel angle to serve as a plug guide hook, and the angle between the connector and the bottom bevel angle is greater than or equal to 5° of the bottom bevel angle.

[0012] Furthermore, the tilt angle of the tilted portion is less than or equal to 45°.

[0013] Furthermore, the sealing groove has a stop portion formed on the outer surface of the sealing plug body for locking the sealing rib. The bottom width of the stop portion is in the range of 0.3mm to 0.5mm, and the gap between the inner wall of the stop portion and the outer wall of the sealing rib is less than or equal to 0.3mm.

[0014] Furthermore, the height of the sealing rib is less than half the height of the waterproof rib.

[0015] The principle and effect of this solution are as follows: Compared with the prior art, this utility model forms a plug-in hook structure by combining a sealing groove and a stop part. The plug-in hook structure locks the sealing rib and the end of the connector, which can firmly fix the plug body to the connector, effectively resist external pulling force, and greatly enhance the stability of the plug after installation. At the same time, the combination of sealing rib and waterproof rib achieves the dual function of protecting the plug and enhancing waterproof sealing performance. This solves the problem that traditional plugs only pursue installation convenience in practical applications, resulting in insufficient pull-out force and poor waterproof sealing performance, which can easily lead to pull-out and water ingress. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the fixed sealing and mating structure of the rubber plug proposed in the embodiment of this application is shown; Figure 2 A cross-sectional view of the fixed-line rubber plug sealing fit structure proposed in an embodiment of this application is shown; Figure 3 A schematic diagram of a fixed-line rubber plug sealing fit structure in the prior art is shown; Figure 4 A cross-sectional view of a prior art fixed-line rubber plug sealing fit structure is shown. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0019] The reference numerals in the accompanying drawings include: 1. Wire-fixing rubber plug body; 2. Force-receiving platform; 3. Force-receiving groove; 4. Connector; 5. Waterproof rib; 6. Inclined part; 7. Main inclined guide surface; 8. Bottom bevel; 9. Sealing rib; 10. Stop part; 11. Existing wire-fixing rubber plug body; 12. Existing connector; 13. Existing waterproof rib.

[0020] The fixed rubber plug sealing structure is implemented for example... Figure 1 and Figure 2 As shown: It includes the wire-fixing rubber plug body 1 and the connector 4.

[0021] The main body 1 of the wire-fixing rubber plug has several vertically penetrating wire harness holes through which the wire harness passes.

[0022] The bottom of the outer wall of the wire-fixing rubber plug body 1 has an upward-facing inclined groove, which forms a vertical portion and an inclined portion 6 from top to bottom on the outer wall of the wire-fixing rubber plug body 1. At the connection between the vertical portion and the inclined portion 6, the wire-fixing rubber plug body 1 has a circumferential groove for the end of the connector 4 to extend into. In this embodiment, the inclination angle of the inclined portion 6 is equal to 45°. In other embodiments, it may be less than or equal to 45°.

[0023] The top surface of the wire-fixing plug body 1 is also formed with a circumferentially closed force groove 3. The force groove 3 is set on the wire-fixing plug body 1 between the annular groove and the outermost wire harness hole. The inner wall surfaces on both sides of the force groove 3 are inclined, and the included angle formed by the bottom of the inclined inner wall surfaces on both sides is in the range of 30° to 45°. In this embodiment, it is specifically 30°.

[0024] Furthermore, a circumferentially closed force-bearing platform 2 is formed on the outer side of the fixed rubber plug body 1.

[0025] In this embodiment, a circumferentially closed sealing rib 9 is formed at the end of the connector 4, and the wire-fixing plug body 1 also has a sealing groove located in the annular groove for the sealing rib 9 to extend into and be stuck therein. At the same time, a circumferentially closed waterproof rib 5 is also formed on the connector 4 located outside the annular groove.

[0026] The height of the waterproof rib 5 is greater than or equal to half the height of the force-bearing platform 2. In this embodiment, the height of the waterproof rib 5 is equal to half the height of the force-bearing platform 2.

[0027] The top inner side of the sealing rib 9 is formed with a main inclined guide surface 7, and the sealing groove is formed with the main inclined guide surface 7 to form a secondary inclined guide surface. The inclination angle of the main inclined guide surface 7 is greater than or equal to the inclination angle of the secondary inclined guide surface 0-5°. In this embodiment, the inclination angle of the main inclined guide surface 7 is greater than the inclination angle of the secondary inclined guide surface 5°.

[0028] Furthermore, in this embodiment, a bottom bevel angle 8 is formed at the connection between the inclined portion 6 and the sealing groove, and the angle at which the connector 4 mates with the bottom bevel angle 8 is greater than or equal to the bottom bevel angle 8 angle of 0-5°. In this embodiment, the angle at which the connector 4 mates with the bottom bevel angle 8 is greater than the bottom bevel angle 8 angle of 5°.

[0029] like Figure 2 As shown, the sealing plug body 1 outside the sealing groove is formed with a stop portion 10 for locking the sealing rib 9. The bottom width of the stop portion 10 ranges from 0.3mm to 0.5mm. In this embodiment, the bottom width of the stop portion 10 is 0.3mm. The gap between the inner wall of the stop portion 10 and the outer wall of the sealing rib 9 is less than or equal to 0.3mm. In this embodiment, the gap is equal to 0.3mm.

[0030] Compared with this utility model Figure 3 and Figure 4The existing fixed-line rubber plug body 11, the existing connector 12, and the existing waterproof rib 13 formed on the existing connector 12 are combined with the provided sealing groove and stop part 10 to form a rubber plug guide hook structure. The rubber plug guide hook structure plays a locking role on the sealing rib 9 and the end of the connector 4, which can firmly fix the fixed-line rubber plug body 1 and the connector 4, effectively resist external pulling force, and greatly enhance the stability of the rubber plug after installation. It is the key to ensuring that the fixed-line rubber plug body 1 is not easy to fall out and has high pull force. At the same time, the combination of sealing rib 9 and waterproof rib 5 achieves the dual function of protecting the rubber plug and enhancing the waterproof sealing performance. Sealing rib 9 can effectively protect the rubber plug body 1 and reduce the damage to the rubber plug body 1 caused by external factors. Waterproof rib 5 works with the force-bearing platform 2 and force-bearing groove 3 of the rubber plug body 1 to form two waterproof defenses, which significantly improves the waterproof sealing effect of the entire system.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A fixed-line rubber plug sealing and fitting structure, characterized in that, The device includes a wire-fixing rubber plug body and a connector. The wire-fixing rubber plug body has several vertically penetrating wire harness holes. The bottom of the outer wall of the wire-fixing rubber plug body has an upward-facing inclined groove. The inclined groove forms a vertical part and an inclined part on the outer wall of the wire-fixing rubber plug body from top to bottom. The connection between the vertical part and the inclined part is a ring groove around the circumference of the wire-fixing rubber plug body for the end of the connector to extend into. The end of the connector is formed with a circumferentially closed sealing rib. The body of the wire-fixing plug also has a sealing groove located in the annular groove, into which the sealing rib extends and is locked. The connector located outside the annular groove is also formed with a circumferentially closed waterproof rib.

2. The fixed sealing and fitting structure of the rubber plug according to claim 1, characterized in that, The top surface of the wire-fixing plug body is also formed with a circumferentially closed force groove. The force groove is set on the wire-fixing plug body between the annular groove and the outermost wire harness hole. The inner walls on both sides of the force groove are inclined, and the included angle formed by the bottom of the inclined inner walls on both sides ranges from 30° to 45°.

3. The fixed sealing and fitting structure for the wire-fixing rubber plug according to claim 1 or 2, characterized in that, The fixed rubber plug body has a circumferentially closed force-bearing platform formed on its outer extension upwards.

4. The fixed sealing and fitting structure of the wire plug according to claim 3, characterized in that, The height of the waterproof reinforcement bar is greater than or equal to half the height of the support platform.

5. The fixed sealing and fitting structure for the wire plug according to claim 1, characterized in that, The sealing rib has a main inclined guide surface formed on the inner side of its top, and the sealing groove has a secondary inclined guide surface formed in conjunction with the main inclined guide surface. The inclination angle of the main inclined guide surface is greater than or equal to the inclination angle of the secondary inclined guide surface (0-5°).

6. The fixed sealing and fitting structure of the wire-fixing rubber plug according to claim 1, characterized in that, The inclined part and the sealing groove are connected to form a bottom bevel angle as a rubber plug guide hook, and the angle between the connector and the bottom bevel angle is greater than or equal to the bottom bevel angle angle of 0-5°.

7. The fixed sealing and fitting structure for the wire plug according to claim 1, characterized in that, The tilt angle of the inclined portion is less than or equal to 45°.

8. The fixed sealing and fitting structure for the wire-fixing rubber plug according to claim 1, characterized in that, The sealing groove has a fixed rubber plug body with a stop for locking the sealing rib. The bottom width of the stop is 0.3mm to 0.5mm, and the gap between the inner wall of the stop and the outer wall of the sealing rib is less than or equal to 0.3mm.

9. The fixed sealing and fitting structure for the wire plug according to claim 8, characterized in that, The height of the sealing rib is less than half the height of the waterproof rib.

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