Automobile waterproof wire harness device

The combination structure of the first support tube, the second support tube and the fixing bracket solves the problem of the wiring harness shaking under the dynamic working conditions of the vehicle, realizes the synchronous fixing of the wiring harness, improves the reliability and safety of the automotive high voltage system, and supports quick disassembly and maintenance.

CN224225018UActive Publication Date: 2026-05-12LEONI ELECTRICAL SYSTEMS (JINING) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LEONI ELECTRICAL SYSTEMS (JINING) CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In the prior art, the suspended section of the wiring harness between adjacent wiring harness fixing brackets will oscillate uncontrollably under the dynamic conditions of the vehicle, resulting in loosening of the connection and fatigue of the wiring harness material, which will affect the reliability and safety of the high-voltage system.

Method used

The structure adopts a combination of a first support tube, a second support tube, and a fixing frame. The waterproof wiring harness body is fixed by staggering the first and second inter-pipe connectors. It is then welded to the vehicle body using fixing bolts, achieving synchronous fixing of the wiring harness and reducing the number of parts and assembly steps.

Benefits of technology

During vehicle operation, it prevents wiring harness swaying, avoids wear or fatigue breakage, improves the reliability and safety of the wiring harness, and supports quick disassembly and maintenance.

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Abstract

The utility model relates to an automobile waterproof wire harness device, and belongs to the technical field of automobile wire harness production and installation. The first supporting pipe and the second supporting pipe are distributed on the two sides of the waterproof wire harness body, one end of the first supporting pipe and one end of the second supporting pipe are fixedly connected with the waterproof wire harness body through the first fixing frame, and the other end of the first supporting pipe and the other end of the second supporting pipe are fixedly connected with the waterproof wire harness body through the second fixing frame. A first inter-pipe connector is connected between the waterproof wire harness body and the first supporting pipe, a second inter-pipe connector is connected between the waterproof wire harness body and the second supporting pipe, and the first inter-pipe connector and the second inter-pipe connector are arranged in a staggered mode. The beneficial effects of the utility model are that the first supporting tube and the second supporting tube cooperate with the first inter-tube connector and the second inter-tube connector to further fix the waterproof wire harness body between the first fixing frame and the second fixing frame, so that the wire harness is prevented from wearing or fatigue fracture during the driving process of an automobile.
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Description

Technical Field

[0001] This utility model relates to a waterproof wiring harness device for automobiles, belonging to the field of automobile wiring harness production and installation technology. Background Technology

[0002] High-voltage wiring harnesses are key components for power transmission in new energy vehicles. When a new energy vehicle is operating, high-voltage wiring harnesses connect these electrical components to the vehicle's main interface to ensure the normal operation of multiple electrical components.

[0003] The utility model with patent number 202421162741.5 discloses a high-voltage wiring harness for new energy vehicles, comprising: multiple conductors; an inner semiconductor layer, an insulating layer, an outer semiconductor layer and a metal armor composite layer are sequentially provided on the outside of the conductors; an insulating filler is provided between the multiple conductors; an insulating filler is provided between two adjacent conductors; and a shielding layer, an armor layer and a protective sleeve are sequentially provided on the outside of the multiple conductors.

[0004] While the aforementioned patent can achieve the function of power transmission in wire harnesses, the current technology is not comprehensive and has the following drawbacks: the suspended section of the wire harness between adjacent wire harness fixing brackets lacks effective constraint, which will cause uncontrolled swaying under vehicle dynamic conditions. This mechanical vibration may not only cause the connection to loosen, but also accelerate the fatigue of the wire harness material, ultimately affecting the reliability and safety of the high-voltage system.

[0005] To solve one of the above problems, there is an urgent need for a waterproof wiring harness device for automobiles. Utility Model Content

[0006] Based on the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to further fix the waterproof wiring harness body between the first fixing frame and the second fixing frame by means of the first support tube and the second support tube in conjunction with the first inter-tube connector and the second inter-tube connector, so that the wiring harness part between the first fixing frame and the second fixing frame will not shake during the driving of the car, thereby preventing the wiring harness from being worn or fatigued and broken. To this end, a waterproof wiring harness device for automobiles is provided.

[0007] The automotive waterproof wiring harness device of this utility model includes a waterproof wiring harness body, with waterproof connection terminals provided at both ends of the waterproof wiring harness body. Its distinguishing feature is that it further includes a first support tube and a second support tube parallel to the waterproof wiring harness body. The first and second support tubes are distributed on both sides of the waterproof wiring harness body. One end of the first and second support tubes is fixedly connected to the waterproof wiring harness body via a first fixing bracket, and the other end of the first and second support tubes is fixedly connected to the waterproof wiring harness body via a second fixing bracket. A first inter-tube connector is connected between the waterproof wiring harness body and the first support tube, and a second inter-tube connector is connected between the waterproof wiring harness body and the second support tube. The first and second inter-tube connectors are arranged alternately.

[0008] Preferably, the first fixing frame includes an upper bracket A and a lower bracket A disposed opposite to each other. The two ends of the upper bracket A and the lower bracket A are respectively penetrated by fixing bolts A and B. Fixing nuts A and B are respectively threaded onto fixing bolts A and B. The upper bracket A is provided with a first slot, a second slot and a third slot. The lower bracket A is provided with a fourth slot, a fifth slot and a sixth slot. The first slot and the fourth slot form a first closed circular hole for fixing the first support tube. The second slot and the fifth slot form a second closed circular hole for fixing the waterproof wire harness body. The third slot and the sixth slot form a first closed circular hole and a third closed circular hole for fixing the second support tube.

[0009] The upper ends of the fixing bolts A and B are welded to the corresponding positions on the vehicle body. The first fixing bracket can simultaneously fix the waterproof wiring harness body, the first support tube, and the second support tube, thereby achieving synchronous fixing of the wiring harness and the support tube and reducing the number of parts and assembly steps.

[0010] In addition, the modular design supports quick assembly and disassembly, and the centralized fixing points facilitate overall troubleshooting during maintenance.

[0011] Preferably, the second fixing bracket includes an upper bracket B and a lower bracket B arranged opposite to each other. The two ends of the upper bracket B and the lower bracket B are respectively penetrated by fixing bolts C and D. Fixing nuts C and D are respectively threaded onto fixing bolts C and D. The upper bracket B is provided with a slot A, a slot B and a slot C. The lower bracket B is provided with a slot D, a slot E and a slot F. The first slot and the fourth slot form a fourth closed circular hole for fixing the first support tube. The second slot and the fifth slot form a fifth closed circular hole for fixing the waterproof wire harness body. The third slot and the sixth slot form a sixth closed circular hole for fixing the second support tube.

[0012] The upper ends of the fixing bolts C and D are welded to corresponding positions on the vehicle body. The second fixing bracket allows for simultaneous positioning of the waterproof wiring harness body, the first support tube, and the second support tube, achieving synchronous fixing of the wiring harness and support tubes and reducing the number of parts and assembly steps. Furthermore, the modular design supports rapid disassembly and assembly, and the centralized fixing points facilitate overall inspection during maintenance.

[0013] Preferably, both the first and second support pipes are circular pipes made of PVC. A first connecting hole, which mates with a first inter-pipe connector, is provided along the length of the first support pipe, and a second connecting hole, which mates with a second inter-pipe connector, is provided along the length of the second support pipe. The use of uniformly circular PVC pipes ensures a balance between structural strength and lightweight design.

[0014] Preferably, the first support tube is provided with a plug head A and a plug head B at both ends, and the two ends of the first support tube are respectively a first threaded hole and a second threaded hole. The plug head A and the plug head B are respectively provided with external threads that mate with the first threaded hole and the second threaded hole.

[0015] The diameters of the sealing heads A and B are larger than the diameter of the first support tube, and they can cooperate with the first fixing frame and the second fixing frame to restrict the first support tube from moving along its length.

[0016] Preferably, the first inter-tube connector includes a connecting rod, with a plug rod vertically connected to the middle of the connecting rod. The plug rod has a locking anti-detachment hook B at one end and an arc-shaped rod in the middle that fits the outer wall of the first support tube. A locking leg is vertically connected to each end of the connecting rod, and a locking anti-detachment hook A is provided at the other end of each locking leg. The two locking anti-detachment hooks A are arranged in a V-shape. One end of the plug rod passes through a first connecting hole. The connecting rod, locking legs, and locking anti-detachment hooks A form a fixed area for accommodating the waterproof wire harness body. It features rapid assembly and can be installed without auxiliary tools.

[0017] Preferably, the first inter-pipe connector and the second inter-pipe connector are staggered and have the same structure.

[0018] Preferably, the first inter-tube connector is made of plastic, which can be deformed by compression. The connecting rod, locking leg, locking anti-detachment hook A, insertion rod, arc rod, and locking anti-detachment hook B are integrally formed. Utilizing the deformable nature of the first inter-tube connector, it facilitates the insertion of the end of the insertion rod into the first connecting hole. Furthermore, when the locking anti-detachment hook B is inserted into the first connecting hole, the two sets of locking anti-detachment hooks B spread out, preventing the insertion rod from separating from the first support tube. The locking leg and locking anti-detachment hook A also cooperate to secure the waterproof wire harness body.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The automotive waterproof wiring harness device of this utility model includes a first fixing frame and a second fixing frame. Both the first fixing frame and the second fixing frame are fixed to the vehicle body. The waterproof wiring harness body, the first support tube, and the second support tube are installed on the vehicle body using the first fixing frame and the second fixing frame. The first support tube and the second support tube, together with the first tube connector and the second tube connector, further fix the waterproof wiring harness body between the first fixing frame and the second fixing frame. Thus, the wiring harness portion between the first fixing frame and the second fixing frame will not shake during vehicle operation, thereby preventing wiring harness wear or fatigue breakage.

[0021] The waterproof wiring harness device for automobiles described in this utility model has its upper ends of fixing bolt A and fixing bolt B welded to corresponding positions on the vehicle body. The first fixing bracket can simultaneously fix the waterproof wiring harness body, the first support tube, and the second support tube, achieving synchronous fixing of the wiring harness and the support tube, thus reducing the number of parts and assembly steps.

[0022] The automotive waterproof wiring harness device described in this utility model features a modular design that supports quick assembly and disassembly, and centralized fixing points that facilitate overall inspection during maintenance.

[0023] The automotive waterproof wiring harness device described in this utility model has a quick assembly feature for the inter-pipe connector, which can be installed without auxiliary tools. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the first support tube of this utility model;

[0027] Figure 3 This is a structural diagram of the first fixing frame;

[0028] Figure 4 This is a structural diagram of the second fixing frame;

[0029] Figure 5 This is a connection diagram of the first inter-pipe connector;

[0030] Figure 6 This is a connection diagram for the second inter-pipe connector;

[0031] Figure 7 This is a structural diagram of the first inter-pipe connector;

[0032] In the diagram: 1. Waterproof wire harness body; 2. Waterproof connecting terminal; 3. First fixing bracket; 3.1. Upper bracket A; 3.2. Lower bracket A; 3.3. Fixing bolt A; 3.4. Fixing bolt B; 3.5. Fixing nut A; 3.6. Fixing nut B; 3.7. First closed circular hole; 3.8. Second closed circular hole; 3.9. Third closed circular hole; 4. Second fixing bracket; 4.1. Upper bracket B; 4.2. Lower bracket B; 4.3. Fixing bolt C; 4.4. Fixing bolt D; 4.5. Fixing nut C; 4.6. Fixing nut D; 4.7. Fourth closed circular hole; 4.8. Fifth closed circular hole; 4.9. Sixth closed circular hole; 5. First support tube; 6. Second support tube; 7. First inter-tube connector; 7.1. Connecting rod; 7.2. Clip leg; 7.3. Clip anti-detachment hook A; 7.4. Insert rod; 7.5. Arc rod; 7.6. Clip anti-detachment hook B; 8. Second inter-tube connector. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings: The present invention will be further described below through specific embodiments, but it is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0034] Example 1, such as Figure 1-2 As shown, the method includes a waterproof wire harness body 1, with waterproof connection terminals 2 at both ends of the waterproof wire harness body 1, and a first support tube 5 and a second support tube 6 parallel to the waterproof wire harness body 1. The first support tube 5 and the second support tube 6 are distributed on both sides of the waterproof wire harness body 1. One end of the first support tube 5 and the second support tube 6 is fixedly connected to the waterproof wire harness body 1 through a first fixing bracket 3, and the other end of the first support tube 5 and the second support tube 6 is fixedly connected to the waterproof wire harness body 1 through a second fixing bracket 4. A first inter-pipe connector 7 is connected between the waterproof wire harness body 1 and the first support tube 5, and a second inter-pipe connector 8 is connected between the waterproof wire harness body 1 and the second support tube 6. The first inter-pipe connector 7 and the second inter-pipe connector 8 are arranged alternately.

[0035] The first fixing bracket 3 and the second fixing bracket 4 are both fixed to the vehicle body. The waterproof wire harness body 1, the first support tube 5, and the second support tube 6 are installed on the vehicle body using the first fixing bracket 3 and the second fixing bracket 4. The first support tube 5 and the second support tube 6, together with the first tube connector 7 and the second tube connector 8, further fix the waterproof wire harness body 1 between the first fixing bracket 3 and the second fixing bracket 4. As a result, the wire harness part between the first fixing bracket 3 and the second fixing bracket 4 will not shake during the driving of the car, thereby preventing wire harness wear or fatigue breakage.

[0036] Example 2, as Figure 1-2 As shown, the method includes a waterproof wire harness body 1, with waterproof connection terminals 2 at both ends of the waterproof wire harness body 1, and a first support tube 5 and a second support tube 6 parallel to the waterproof wire harness body 1. The first support tube 5 and the second support tube 6 are distributed on both sides of the waterproof wire harness body 1. One end of the first support tube 5 and the second support tube 6 is fixedly connected to the waterproof wire harness body 1 through a first fixing bracket 3, and the other end of the first support tube 5 and the second support tube 6 is fixedly connected to the waterproof wire harness body 1 through a second fixing bracket 4. A first inter-pipe connector 7 is connected between the waterproof wire harness body 1 and the first support tube 5, and a second inter-pipe connector 8 is connected between the waterproof wire harness body 1 and the second support tube 6. The first inter-pipe connector 7 and the second inter-pipe connector 8 are arranged alternately.

[0037] Furthermore, referring to Figure 3-4 The first fixing bracket 3 includes an upper bracket A3.1 and a lower bracket A3.2 arranged opposite to each other. The two ends of the upper bracket A3.1 and the lower bracket A3.2 are respectively penetrated by fixing bolts A3.3 and B3.4. Fixing nuts A3.5 and B3.6 are respectively threaded onto fixing bolts A3.3 and B3.4. The upper bracket A3.1 is provided with a first slot, a second slot and a third slot. The lower bracket A3.2 is provided with a fourth slot, a fifth slot and a sixth slot. The first slot and the fourth slot form a first closed circular hole 3.7 for fixing the first support tube 5. The second slot and the fifth slot form a second closed circular hole 3.8 for fixing the waterproof wire harness body 1. The third slot and the sixth slot form a first closed circular hole and a third closed circular hole 3.9 for fixing the second support tube 6. The upper ends of the fixing bolts A3.3 and B3.4 are welded to corresponding positions on the vehicle body. The first fixing bracket 3 can simultaneously fix the waterproof wiring harness body 1, the first support tube 5, and the second support tube 6, achieving synchronous fixing of the wiring harness and support tubes, reducing the number of parts and assembly steps. In addition, the modular design supports quick disassembly and assembly, and the centralized fixing points facilitate overall inspection during maintenance.

[0038] Further, the second fixing bracket 4 includes an upper bracket B4.1 and a lower bracket B4.2 arranged opposite to each other. The two ends of the upper bracket B4.1 and the lower bracket B4.2 are respectively penetrated by fixing bolts C4.3 and D4.4. Fixing nuts C4.5 and D4.6 are respectively threaded onto fixing bolts C4.3 and D4.4. The upper bracket B4.1 is provided with a slot A, a slot B and a slot C. The lower bracket B4.2 is provided with a slot D, a slot E and a slot F. The first slot and the fourth slot form a fourth closed circular hole 4.7 for fixing the first support tube 5. The second slot and the fifth slot form a fifth closed circular hole 4.8 for fixing the waterproof wire harness body 1. The third slot and the sixth slot form a sixth closed circular hole 4.9 for fixing the second support tube 6.

[0039] The upper ends of the fixing bolts C4.3 and D4.4 are welded to corresponding positions on the vehicle body. The second fixing bracket 4 can simultaneously fix the waterproof wiring harness body 1, the first support tube 5, and the second support tube 6, achieving synchronous fixing of the wiring harness and support tubes, reducing the number of parts and assembly steps. In addition, the modular design supports quick disassembly and assembly, and the centralized fixing points facilitate overall inspection during maintenance.

[0040] Furthermore, both the first support pipe 5 and the second support pipe 6 are circular pipes made of PVC. A first connecting hole, which mates with the first inter-pipe connector 7, is provided along the length of the first support pipe 5, and a second connecting hole, which mates with the second inter-pipe connector 8, is provided along the length of the second support pipe 6. The use of circular PVC pipes ensures a balance between structural strength and lightweight design.

[0041] Furthermore, the first support tube 5 is provided with a sealing head A5.1 and a sealing head B5.2 at both ends, and the two ends of the first support tube 5 are respectively a first threaded hole and a second threaded hole. The sealing head A5.1 and the sealing head B5.2 are respectively provided with external threads that mate with the first threaded hole and the second threaded hole. The diameter of the sealing head A5.1 and the sealing head B5.2 is larger than the diameter of the first support tube 5, and can cooperate with the first fixing frame 3 and the second fixing frame 4 to restrict the first support tube 5 from moving along its length.

[0042] Furthermore, referring to Figure 5-7The first inter-pipe connector 7 includes a connecting rod 7.1, with a plug rod 7.4 vertically connected to the middle of the connecting rod 7.1. A snap-lock anti-detachment hook B7.6 is provided at the end of the plug rod 7.4, and an arc-shaped rod 7.5 is provided in the middle of the plug rod 7.4. The arc-shaped rod 7.5 is adapted to the outer wall of the first support pipe 5. A snap-lock leg 7.2 is vertically connected to each end of the connecting rod 7.1, and a snap-lock anti-detachment hook A7.3 is provided at the other end of each snap-lock leg 7.2. The two snap-lock anti-detachment hooks A7.3 are arranged in a V-shape. One end of the plug rod 7.4 passes through the first connecting hole. The connecting rod 7.1, snap-lock leg 7.2, and snap-lock anti-detachment hook A7.3 form a fixed area for accommodating the waterproof wire harness body 1. It features rapid assembly and can be installed without auxiliary tools.

[0043] Furthermore, the first inter-pipe connector 7 and the second inter-pipe connector 8 are staggered and have the same structure.

[0044] Furthermore, the first inter-tube connector 7 is made of plastic, which can be deformed by compression. The connecting rod 7.1, the latching leg 7.2, the latching anti-detachment hook A7.3, the insertion rod 7.4, the arc-shaped rod 7.5, and the latching anti-detachment hook B7.6 are integrally formed. Utilizing the deformable characteristic of the first inter-tube connector 7, it is easy for the end of the insertion rod 7.4 to be inserted into the first connection hole. When the latching anti-detachment hook B7.6 is inserted into the first connection hole, the two sets of latching anti-detachment hooks B7.6 are spread apart, preventing the insertion rod 7.4 from separating from the first support tube 5. In addition, the latching leg 7.2 and the latching anti-detachment hook A7.3 cooperate to fix the waterproof wire harness body 1.

[0045] The automotive waterproof wiring harness device of this utility model includes a first fixing frame and a second fixing frame. Both the first fixing frame and the second fixing frame are fixed to the vehicle body. The waterproof wiring harness body, the first support tube, and the second support tube are installed on the vehicle body using the first fixing frame and the second fixing frame. The first support tube and the second support tube, together with the first tube connector and the second tube connector, further fix the waterproof wiring harness body between the first fixing frame and the second fixing frame. Thus, the wiring harness portion between the first fixing frame and the second fixing frame will not shake during vehicle operation, thereby preventing wiring harness wear or fatigue breakage.

[0046] The waterproof wiring harness device for automobiles described in this utility model has its upper ends of fixing bolt A and fixing bolt B welded to corresponding positions on the vehicle body. The first fixing bracket can simultaneously fix the waterproof wiring harness body, the first support tube, and the second support tube, achieving synchronous fixing of the wiring harness and the support tube, thus reducing the number of parts and assembly steps.

[0047] The automotive waterproof wiring harness device described in this utility model features a modular design that supports quick assembly and disassembly, and centralized fixing points that facilitate overall inspection during maintenance.

[0048] The automotive waterproof wiring harness device described in this utility model has a quick assembly feature for the inter-pipe connector, which can be installed without auxiliary tools.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0050] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A waterproof wiring harness device for automobiles, comprising a waterproof wiring harness body, wherein waterproof connection terminals are provided at both ends of the waterproof wiring harness body, characterized in that: It also includes a first support tube and a second support tube parallel to the waterproof wire harness body. The first support tube and the second support tube are distributed on both sides of the waterproof wire harness body. One end of the first support tube and the second support tube are fixedly connected to the waterproof wire harness body through a first fixing bracket, and the other end of the first support tube and the second support tube are fixedly connected to the waterproof wire harness body through a second fixing bracket. A first inter-tube connector is connected between the waterproof wire harness body and the first support tube, and a second inter-tube connector is connected between the waterproof wire harness body and the second support tube. The first inter-tube connector and the second inter-tube connector are arranged alternately.

2. The automotive waterproof wiring harness device according to claim 1, characterized in that, The first fixing bracket includes an upper bracket A and a lower bracket A arranged opposite to each other. The two ends of the upper bracket A and the lower bracket A are respectively penetrated by fixing bolts A and B. Fixing nuts A and B are respectively threaded onto fixing bolts A and B. The upper bracket A is provided with a first slot, a second slot and a third slot. The lower bracket A is provided with a fourth slot, a fifth slot and a sixth slot. The first slot and the fourth slot form a first closed circular hole for fixing the first support tube. The second slot and the fifth slot form a second closed circular hole for fixing the waterproof wire harness body. The third slot and the sixth slot form a first closed circular hole and a third closed circular hole for fixing the second support tube.

3. The automotive waterproof wiring harness device according to claim 2, characterized in that, The second fixing bracket includes an upper bracket B and a lower bracket B arranged opposite to each other. The two ends of the upper bracket B and the lower bracket B are respectively penetrated by fixing bolts C and D. Fixing nuts C and D are respectively threaded onto fixing bolts C and D. The upper bracket B is provided with a slot A, a slot B and a slot C. The lower bracket B is provided with a slot D, a slot E and a slot F. The first slot and the fourth slot form a fourth closed circular hole for fixing the first support tube. The second slot and the fifth slot form a fifth closed circular hole for fixing the waterproof wire harness body. The third slot and the sixth slot form a sixth closed circular hole for fixing the second support tube.

4. The automotive waterproof wiring harness device according to claim 3, characterized in that, Both the first support tube and the second support tube are round tubes made of PVC. A first connecting hole that mates with the first inter-tube connector is provided along the length of the first support tube, and a second connecting hole that mates with the second inter-tube connector is provided along the length of the second support tube.

5. The automotive waterproof wiring harness device according to claim 4, characterized in that, The first support tube is provided with a plug head A and a plug head B at its two ends respectively. The two ends of the first support tube are respectively a first threaded hole and a second threaded hole. The plug head A and the plug head B are respectively provided with external threads that mate with the first threaded hole and the second threaded hole.

6. The automotive waterproof wiring harness device according to claim 5, characterized in that, The first tube connector includes a connecting rod, a plug rod is vertically connected to the middle of the connecting rod, a snap-lock anti-detachment hook B is provided at the end of the plug rod, an arc-shaped rod is provided in the middle of the plug rod, the arc-shaped rod is adapted to the outer wall of the first support tube, a snap-lock leg is vertically connected to each end of the connecting rod, and a snap-lock anti-detachment hook A is provided at the other end of the snap-lock leg. The two snap-lock anti-detachment hooks A are distributed in a figure-eight pattern. One end of the plug rod passes through the first connecting hole. The connecting rod, snap-lock leg, and snap-lock anti-detachment hook A form a fixed area for accommodating the waterproof wire harness body.

7. The automotive waterproof wiring harness device according to claim 6, characterized in that, The first inter-pipe connector and the second inter-pipe connector are staggered and have the same structure.

8. The automotive waterproof wiring harness device according to claim 7, characterized in that, The first inter-pipe connector is made of plastic and can be deformed by extrusion. The connecting rod, buckle leg, buckle anti-detachment hook A, insertion rod, arc rod, and buckle anti-detachment hook B are integrally formed.