Automobile wire harness sheath with high tensile property

By introducing a combined corrugated tube and connector into the automotive wiring harness sheath, and utilizing a spiral tensile metal wire and an adjustable steering ball design, the problems of insufficient tensile strength of traditional sheaths and non-adjustable connectors are solved, achieving high tensile strength and flexible wiring harness protection.

CN224138660UActive Publication Date: 2026-04-17TIANJIN YUANXIN TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN YUANXIN TECH CO LTD
Filing Date
2025-05-15
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Traditional automotive wiring harness sheaths have poor tensile strength and the connector orientation is fixed and cannot be adjusted, which cannot meet diverse needs.

Method used

Design a sheath comprising a combined corrugated pipe fitting and a connector. The corrugated pipe fitting has an embedded tensile component consisting of a spiral tensile metal wire and a protective layer. The connector is adjustable via a steering ball and a fastening screw. The materials used are PVC, stainless steel, and silicone rubber.

Benefits of technology

The sheath's tensile strength has been improved, and the orientation of the wire harness perforations can be quickly adjusted as needed, enhancing the protection and flexibility of the wire harness.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224138660U_ABST
    Figure CN224138660U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of automobile wire harness sheaths, in particular to an automobile wire harness sheath with high tensile property, which is reasonable in structural design and mainly comprises a telescopic and bendable combined corrugated pipe fitting and combined connectors arranged at two ends of the telescopic and bendable combined corrugated pipe fitting. On one hand, the tensile component is embedded in the spiral corrugated groove of the combined corrugated pipe fitting, the tensile component is composed of the spiral tensile metal wire and the protective layer arranged on the outer side of the spiral tensile metal wire in a sleeving mode, and the tensile performance of the whole automobile wire harness sheath can be improved through the tensile component; and on the other hand, the position of the steering ball in the combined connector can be adjusted, so that the orientation of the automobile wire harness through hole can be quickly adjusted according to requirements.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness sheathing technology, and in particular to an automotive wiring harness sheathing with high tensile strength. Background Technology

[0002] Automotive wiring harness sheaths play a crucial role in wiring systems, primarily in the following aspects: 1) Protection and insulation: The interior of a car is filled with complex electrical systems, and the wiring harness, as the carrier of these circuits, is directly exposed to various harsh environments. The sheath tightly wraps the wiring harness, effectively preventing exposed wires, wear, or short circuits, while providing necessary insulation to ensure current flows only along a predetermined path, avoiding electrical faults and safety hazards. 2) Wear and aging resistance: During use, cars undergo frequent starting, acceleration, and braking, generating vibrations and impacts that can easily damage the wiring harness. High-quality sheath materials possess excellent wear and aging resistance, capable of withstanding these physical stresses for a long time, extending the lifespan of the wiring harness. 3) Water and dust resistance: Driving under various road conditions and environments, such as rain, snow, or muddy roads, can allow moisture and dust to enter the vehicle. Sheaths are typically designed with waterproof and dustproof properties, effectively blocking external environmental erosion, protecting the wiring harness from corrosion, and ensuring the normal operation of the electrical system. 4) Sound insulation and noise reduction: Some specially designed sheaths can also reduce the noise generated by wire vibration to a certain extent, improving the comfort of the ride inside the vehicle.

[0003] Traditional automotive wiring harness sleeves have several shortcomings. First, they lack tensile strength components, resulting in insufficient overall tensile performance. Second, the orientation of their connectors is fixed, preventing quick adjustment as needed. Therefore, optimization and improvement of traditional automotive wiring harness sleeves are necessary. Utility Model Content

[0004] The purpose of this invention is to overcome the aforementioned problems in traditional technologies and provide an automotive wiring harness sheath with high tensile strength.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A high tensile strength automotive wiring harness sheath includes a combined corrugated tube that can extend and bend, and combined connectors at both ends thereof.

[0007] The combined corrugated pipe fitting includes a corrugated pipe body, a spiral corrugated section on the outer side of the corrugated pipe body, a spiral corrugated groove on the inner side of the corrugated pipe body that matches the position of the spiral corrugated section, and a tensile component installed on the corrugated pipe body at the spiral corrugated groove. The tensile component is composed of a spiral tensile metal wire and a protective layer sleeved on its outer side.

[0008] The combined connector includes an annular seat, in which a steering ball is movable and restricted, and the steering ball has an opening for automotive wiring harness penetration. A fastening screw capable of pressing and locking the steering ball is installed on the annular seat.

[0009] Furthermore, in the aforementioned automotive wiring harness sheath with high tensile strength, the corrugated tube body and the annular seat are an integral structure made of PVC material.

[0010] Furthermore, in the aforementioned automotive wiring harness sheath with high tensile strength, the spiral tensile metal wire is made of stainless steel, and the protective layer is made of silicone rubber.

[0011] Furthermore, in the aforementioned automotive wiring harness sheath with high tensile strength, the two ends of the spiral tensile metal wire are provided with anti-detachment heads with increased diameter, and the anti-detachment heads are pre-embedded in the adjacent annular seat.

[0012] Furthermore, in the aforementioned automotive wiring harness sheath with high tensile strength, the steering ball has cutouts on both sides, and the distance between the two cutouts is greater than the axial length of the annular seat.

[0013] Furthermore, in the aforementioned automotive wiring harness sheath with high tensile strength, the annular seat has an internal cavity for facilitating the movement of the steering ball and a fastening screw groove for facilitating the installation of the fastening screw.

[0014] Furthermore, in the aforementioned automotive wiring harness sheath with high tensile strength, the outer end of the fastening screw is provided with a knob for easy manual turning, and the inner end of the fastening screw is provided with a concave surface that matches the shape of the outer wall of the steering ball.

[0015] Furthermore, in the aforementioned automotive wiring harness sheath with high tensile strength, an anti-slip rubber pad is adhered to the concave surface of the inner end of the fastening screw.

[0016] The beneficial effects of this utility model are:

[0017] This utility model has a reasonable structural design. It mainly consists of a combined corrugated pipe fitting that can extend and bend, and combined connectors at both ends. On the one hand, tensile components are embedded in the spiral corrugated groove of the combined corrugated pipe fitting. The tensile components are composed of spiral tensile metal wire and a protective layer sleeved on the outside. The tensile components can improve the overall tensile performance of the automotive wiring harness sheath. On the other hand, the position of the steering ball in the combined connector is adjustable, so that the orientation of the automotive wiring harness perforation can be quickly adjusted according to the requirements.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a front view schematic diagram of the entire utility model;

[0022] Figure 3 This is a structural schematic diagram of the combined corrugated pipe fitting in this utility model;

[0023] Figure 4 This is a schematic diagram of the external structure of the combined connector in this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the combined connector in this utility model;

[0025] Figure 6 This is a half-sectional schematic diagram of the annular seat in this utility model;

[0026] In the attached diagram, the components represented by each number are as follows:

[0027] 1-Combined corrugated pipe fitting, 101-Corrugated pipe body, 102-Helical corrugated section, 103-Helical corrugated groove, 104-Helical tensile metal wire, 105-Protective layer;

[0028] 2-Combination connector, 201-Ring seat, 202-Steering ball, 203-Automotive wiring harness through hole, 204-Fasting screw. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] like Figures 1-6 As shown, this embodiment provides an automotive wiring harness sheath with high tensile strength, including a combined corrugated tube 1 that can extend and bend, and combined connectors 2 located at both ends thereon.

[0032] In this embodiment, the combined corrugated pipe fitting 1 includes a corrugated pipe body 101, a spiral corrugated section 102 is provided on the outer side of the corrugated pipe body 101, and a spiral corrugated groove 103 is provided on the inner side of the corrugated pipe body 101 to cooperate with the position of the spiral corrugated section 102. A tensile component is installed on the corrugated pipe body 101 at the spiral corrugated groove 103. The tensile component is composed of a spiral tensile metal wire 104 and a protective layer 105 sleeved on its outer side.

[0033] In this embodiment, the combined connector 2 includes an annular seat 201, in which a steering ball 202 is movably restricted, and a car wiring harness through hole 203 is provided in the steering ball 202. A fastening screw 204 capable of pressing and locking the steering ball 202 is installed on the annular seat 201.

[0034] In this embodiment, the corrugated pipe body 101 and the annular seat 201 are an integral structure made of PVC material.

[0035] In this embodiment, the spiral tensile metal wire 104 is made of stainless steel, and the protective layer 105 is made of silicone rubber.

[0036] In this embodiment, the steering ball 202 has cuts on both sides, the plane of the cuts is perpendicular to the axis of the automotive wiring harness through hole 203, and the distance between the two cuts is greater than the axial length of the annular seat.

[0037] In this embodiment, the annular seat 201 has an active cavity 205 for facilitating the movement of the steering ball 202 and a fastening screw groove 206 for facilitating the installation of the fastening screw 204.

[0038] In this embodiment, the outer end of the fastening screw 204 is provided with a knob for easy manual turning, and the inner end of the fastening screw 204 is provided with a concave surface that matches the shape of the outer wall of the steering ball 202. An anti-slip pad is adhered to the concave surface of the inner end of the fastening screw 204.

[0039] One specific application of this embodiment is as follows: This automotive wiring harness sheath is mainly composed of a combined corrugated tube 1 that can be stretched and bent, and combined connectors 2 located at both ends of it. On the one hand, tensile components are embedded in the spiral corrugated groove 103 of the combined corrugated tube 1. The tensile components are composed of a spiral tensile metal wire 104 and a protective layer 105 sleeved on its outer side. The tensile components can improve the overall tensile performance of the automotive wiring harness sheath. On the other hand, the position of the steering ball 202 in the combined connector 2 is adjustable, so that the orientation of the automotive wiring harness through hole 203 can be quickly adjusted according to the requirements.

[0040] Example 2

[0041] This embodiment is an improvement on the first embodiment. The spiral tensile metal wire 104 is provided with anti-detachment heads with larger diameters at both ends, and the anti-detachment heads are pre-embedded in the adjacent annular seat 201.

[0042] Compared to the detachable tensile component in Embodiment 1, the tensile component in this embodiment is not detachable, but it can further improve tensile performance.

[0043] The preferred embodiments of this utility model disclosed above are merely for illustrating the present utility model. These preferred embodiments do not describe all details exhaustively, nor do they limit the utility model to specific implementation methods. Obviously, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high tensile strength automotive wire harness jacket, characterized by, This includes modular corrugated pipe fittings that can extend and bend, as well as modular connectors located at both ends of the fittings. The combined corrugated pipe fitting includes a corrugated pipe body, a spiral corrugated section on the outer side of the corrugated pipe body, a spiral corrugated groove on the inner side of the corrugated pipe body that matches the position of the spiral corrugated section, and a tensile component installed on the corrugated pipe body at the spiral corrugated groove. The tensile component is composed of a spiral tensile metal wire and a protective layer sleeved on its outer side. The combined connector includes an annular seat, in which a steering ball is movable and restricted, and the steering ball has an opening for automotive wiring harness penetration. A fastening screw capable of pressing and locking the steering ball is installed on the annular seat.

2. The high tensile strength automotive wire harness jacket of claim 1, wherein, The corrugated pipe body and the annular seat are an integral structure made of PVC material.

3. The high tensile strength automotive wire harness jacket of claim 1, wherein, The spiral tensile metal wire is made of stainless steel, and the protective layer is made of silicone rubber.

4. The high tensile strength automotive wire harness jacket of claim 3, wherein, The spiral tensile metal wire is provided with anti-detachment heads with increased diameter at both ends, and the anti-detachment heads are pre-embedded in the adjacent annular seat.

5. The high tensile strength automotive wire harness jacket of claim 1, wherein, The steering ball has cuts on both sides, and the distance between the two cuts is greater than the axial length of the annular seat.

6. The high tensile strength automotive wire harness jacket of claim 1, wherein, The annular seat has an internal cavity for easy movement of the steering ball and a fastening screw groove for easy installation of the fastening screw.

7. The automotive wiring harness sheath with high tensile strength according to claim 1, characterized in that, The outer end of the fastening screw is provided with a knob for easy manual turning, and the inner end of the fastening screw is provided with a concave surface that matches the shape of the outer wall of the steering ball.

8. The high tensile strength automotive wire harness jacket of claim 7, wherein, An anti-slip rubber pad is adhered to the concave surface of the inner end of the fastening screw.