A harness conduit guiding device

The traction ball and anti-slip texture design in the guide device solves the problems of wire harness getting stuck and scratched in complex conduits, and realizes an efficient and safe wire harness threading process.

CN224596068UActive Publication Date: 2026-08-04中航贵州飞机有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
中航贵州飞机有限责任公司
Filing Date
2025-08-15
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In the aerospace field, finished wire harnesses are prone to getting stuck, scratching the inner wall, and are inefficient when passing through complex conduits, affecting assembly progress and safety.

Method used

It adopts a combination device of traction ball, guide line, wire harness end protector and full thread stop pin. The traction ball is made of high strength material and the anti-slip texture design reduces jamming and protects the inner wall of the wire harness and conduit, improving the wire threading efficiency.

Benefits of technology

It significantly improves the efficiency of threading the wire harness through the catheter, protects the inner wall of the catheter and the wire harness, and reduces the difficulty and cost of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of wire harness lead-through conduit's guiding device, belong to aviation wire harness assembly technical field.The device includes tow ball, guide line, wire harness end protector and full thread stop pin;Guide line one end connects tow ball, the other end connects wire harness end protector;Wire harness end protector is equipped with the mounting hole for inserting wire harness, and wire harness is fixed by full thread stop pin.The utility model passes through the gravity of tow ball and guides wire harness to pass through curved conduit, wire harness end protector prevents wire harness connector to scratch conduit inner wall, effectively solve the problem that aircraft finished product wire harness is easy to jam when leading through conduit, scratch inner wall, improve threading efficiency, reduce short-circuit risk.The device can be adapted to different specifications of conduit, with simple structure, convenient operation, strong practicality and the like characteristics.
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Description

Technical Field

[0001] This utility model relates to the field of aviation wire harness assembly technology, and specifically to a guiding device for wire harness passing through a conduit. Background Technology

[0002] In the aerospace industry, threading finished wire harnesses through conduits is a critical step in aircraft assembly, ensuring the normal operation of the electrical system. Its installation quality and efficiency directly impact the aircraft's assembly progress and flight safety. However, finished wire harnesses, with copper wires and other materials as their core components, must traverse numerous complex conduit structures with large bending angles, small diameters, and dense bends during insertion. Due to the narrow internal channels and tortuous paths of these conduits, the finished wire harnesses experience significant resistance during threading, easily leading to jamming. This not only results in a substantial increase in time spent on each threading operation, severely slowing down the assembly progress, but can even lead to extreme situations where the wire harness cannot be threaded at all, significantly affecting production schedules. Furthermore, the direct contact and friction between the hard materials like copper wires and the inner wall of the conduit can easily scratch the conduit's inner wall, causing damage to the inner protective layer or the structure itself. Simultaneously, the outer sheath of the wire harness is easily worn away by the rough inner wall of the conduit, exposing the internal copper wires. Therefore, there is an urgent need to develop specialized guiding devices to address these technical challenges. Utility Model Content

[0003] To address the aforementioned shortcomings, this utility model aims to provide a guiding device for threading wire harnesses through conduits. This solves the problems of easy jamming, scratching of the inner wall, and low efficiency when threading aircraft wire harnesses through bent conduits in the prior art.

[0004] To achieve the above technical objectives, the following technical solutions were adopted:

[0005] A wire harness guide device for passing through a conduit includes a traction ball, a guide wire, a wire harness end protector, and a fully threaded stop pin; one end of the guide wire is connected to the traction ball, and the other end is connected to the wire harness end protector; the wire harness end protector has a mounting hole for inserting the wire harness, and the fully threaded stop pin is threaded onto the wire harness end protector, with its end extending into the mounting hole to fix the wire harness.

[0006] Furthermore, the guide wires are detachably bundled with the traction ball and the wire harness end protector, respectively.

[0007] Furthermore, the wire harness end protector has a spherical shell.

[0008] Furthermore, the diameter of the wire harness end protector is 1-3 mm smaller than the inner diameter of the conduit.

[0009] Furthermore, the inner wall of the mounting hole of the wire harness end protector is provided with anti-slip texture.

[0010] Furthermore, the diameter of the traction ball is 1-3 mm smaller than the inner diameter of the conduit.

[0011] Furthermore, the traction ball is made of high-carbon steel or tungsten alloy.

[0012] Furthermore, the guide line is a nylon line or a steel wire rope, and its length is adjustable.

[0013] Furthermore, the end of the fully threaded stop pin is provided with a buffer layer, and its threaded surface is coated with an anti-loosening adhesive layer.

[0014] The beneficial effects achieved by this utility model are:

[0015] This invention provides a guiding device for threading wire harnesses through conduits. Through a traction design using a high-strength traction ball, the wire harness can quickly pass through curved conduits, significantly improving threading efficiency and saving labor time and costs compared to traditional manual methods. The connection and fixation between the wire harness and the guide wire are achieved using a wire harness end protector and a fully threaded stop pin. The spherical outer shell of the end protector and the anti-slip texture on the inner wall of the mounting hole protect the wire harness and the inner wall of the conduit, avoiding direct friction and collision, and reducing the risk of scratches on the wire harness sheath and damage to the inner wall of the conduit. The diameters of both the traction ball and the end protector are smaller than the inner diameter of the conduit, reducing the occurrence of jamming and making the threading process smoother. This invention has few components, a simple structure, and is convenient to install and use. Operators can operate it without complex training, lowering the barrier to entry and improving threading efficiency. Attached Figure Description

[0016] The present invention will now be described in conjunction with the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the components of this utility model.

[0019] Figure 3 This is a schematic diagram of the overall structure of this utility model.

[0020] In the diagram: 1-traction ball; 2-guide wire; 3-wire harness end protector; 31-mounting hole; 4-full threaded stop pin; 5-conduit; 6-wire harness. Detailed Implementation

[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. The described embodiments are merely some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figure 1-2 As shown, the present invention provides a guiding device for threading a wire harness through a conduit, comprising a traction ball 1, a guide wire 2, a wire harness end protector 3, and a fully threaded stop pin 4.

[0023] The guide line 2 is made of nylon or steel wire rope. One end of it is connected to the traction ball 1 by a detachable binding connection, and the other end is connected to the wire harness end protector 3 by a detachable binding connection. The length of the guide line 2 can be adjusted according to the length of the conduit 5.

[0024] The traction ball 1 is made of high carbon steel or tungsten alloy, and its diameter is 2 mm smaller than the inner diameter of the conduit 5.

[0025] The wire harness end protector 3 is a spherical shell with a diameter 1 mm smaller than the inner diameter of the conduit 5, and is provided with a mounting hole 31 for inserting the wire harness 6. The inner wall of the mounting hole 31 is provided with anti-slip texture.

[0026] The fully threaded stop pin 4 is threadedly connected to the wire harness end protector 3, and its end extends into the mounting hole 31. The end of the fully threaded stop pin 4 is provided with a rubber buffer layer, and its thread surface is coated with an anti-loosening rubber layer.

[0027] like Figure 3 As shown, when using this guiding device to pass aircraft wire harnesses through bending conduits, first select the appropriate specifications for the traction ball 1 and wire harness end protector 3 according to the inner diameter of the conduit 5, ensuring that their diameters are 1-3mm smaller than the inner diameter of the conduit 5. Then, insert the end of the wire harness 6 into the mounting hole 31 of the wire harness end protector 3, and tighten the fully threaded stop pin 4. The wire harness 6 is fixed by the end of the fully threaded stop pin 4. The buffer layer protects the wire harness 6 from being pinched, and the anti-loosening rubber layer ensures that the fully threaded stop pin 4 will not loosen. Next, bind and connect the guide wire 2 to the traction ball 1 and the wire harness end protector 3, and adjust the length of the guide wire 2. Then, insert the traction ball 1 from one end of the conduit 5, and let it fall into the conduit 5 under its own weight. The traction ball 1 drives the guide wire 2, and the guide wire 2 then pulls the wire harness end protector 3 and the wire harness 6 through the conduit 5. During the cable threading process, the spherical cable harness end protector 3 and its appropriate diameter design reduce jamming, the anti-slip texture prevents the cable harness 6 from slipping, and the high-strength traction ball 1 ensures its strength and service life.

[0028] Other aspects of this utility model that are not detailed herein are all conventional techniques known to those skilled in the art.

[0029] It should be noted that the terms “comprising,” “including,” or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] The scope of protection of this utility model is not limited to the technical solutions disclosed in the specific embodiments. Any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical essence of this utility model shall fall within the scope of protection of this utility model.

Claims

1. A guiding device for threading a wire harness through a conduit, characterized in that: It includes a traction ball (1), a guide wire (2), a wire harness end protector (3), and a fully threaded stop pin (4); one end of the guide wire (2) is connected to the traction ball (1), and the other end is connected to the wire harness end protector (3); the wire harness end protector (3) is provided with a mounting hole (31) for inserting the wire harness (6), and the fully threaded stop pin (4) is threaded onto the wire harness end protector (3), and its end extends into the mounting hole (31) to fix the wire harness (6).

2. The guiding device for threading a wire harness through a conduit according to claim 1, characterized in that: The guide line (2) is detachably bundled with the traction ball (1) and the wire harness end protector (3).

3. The guiding device for threading a wire harness through a conduit according to claim 1, characterized in that: The wire harness end protector (3) has a spherical shell.

4. The guiding device for threading a wire harness through a conduit according to claim 3, characterized in that: The diameter of the wire harness end protector (3) is 1-3 mm smaller than the inner diameter of the conduit (5).

5. The guiding device for threading a wire harness through a conduit according to claim 4, characterized in that: The inner wall of the mounting hole (31) of the wire harness end protector (3) is provided with anti-slip texture.

6. The guiding device for threading a wire harness through a conduit according to claim 1, characterized in that: The diameter of the traction ball (1) is 1-3 mm smaller than the inner diameter of the conduit (5).

7. The guiding device for threading a wire harness through a conduit according to claim 6, characterized in that: The traction ball (1) is made of high carbon steel or tungsten alloy.

8. The guiding device for threading a wire harness through a conduit according to claim 1, characterized in that: The guide line (2) is a nylon line or a steel wire rope, and its length is adjustable.

9. A guiding device for threading a wire harness through a conduit according to claim 1, characterized in that: The end of the fully threaded stop pin (4) is provided with a buffer layer, and its thread surface is coated with an anti-loosening adhesive layer.