An electrical insulator and wiring harness that prevents the harness from coming loose

By incorporating tension springs and anti-slip strips in the clamping assembly, the problem of wire harness loosening under vibration in electrical insulators is solved, achieving a stable connection of the wire harness.

CN224519596UActive Publication Date: 2026-07-17ZHENJIANG WANGZHENG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENJIANG WANGZHENG ELECTRONICS CO LTD
Filing Date
2025-06-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing electrical insulators are prone to screw loosening due to vibration after long-term use, which cannot effectively prevent wire harnesses from loosening, especially in bad weather when cable ties and tapes are not effective at securing them.

Method used

The clamping assembly includes a fixed base, mounting beam, clamping block, and tension spring. The tension spring applies a constant downward tension to the clamping block. Combined with anti-slip strips and curved contact surfaces, this ensures that the wire harness fits tightly against the electrical insulator and prevents loosening.

Benefits of technology

It effectively prevents the wire harness from loosening in a vibrating environment, increases the friction between the wire harness and the electrical insulator, and ensures a long-term fastening effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of electric insulator and wire harness capable of preventing wire harness loosening, including electric insulator body and the clamping assembly of its top, the wire harness is clamped in the clamping assembly;The clamping assembly includes fixed base, and its both sides are provided with through-hole, and the mounting beam is installed on the through-hole of two sides top, the clamping block is equipped in the mounting beam, and the tension spring is connected in the middle of two, the tension spring exerts force to the clamping block downwards, and press on the wire harness;The utility model exerts constant tension to clamping block by tension spring downwards, make clamping plate and butt joint seat closely adhere wire harness outer surface, even in vibrating environment, the elastic potential energy of tension spring can compensate the tiny displacement of wire harness due to vibration, avoid loosening;The acting surface of butt joint seat and clamping plate is composed of multiple cambered surfaces, anti-skid strip is distributed in cambered surface with interval, and the top surface of adjacent convex block of anti-skid groove is arc, increase the contact area and friction force with wire harness, effectively prevent wire harness transverse sliding.
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Claims

1. An electrical insulator capable of preventing a wire harness from loosening, characterized by: It includes an electrical insulator body (1) and a clamping assembly (2) disposed on its top, wherein the clamping assembly (2) clamps the wire harness (3); The clamping assembly (2) includes a fixed base (21) fixed to the top of the electrical insulator body (1). The fixed base (21) is hollow inside and has through holes (22) on both sides. An installation beam (23) is installed above the through holes (22) on both sides. A clamping block (24) is provided in the installation beam (23). The tops of the clamping blocks (24) on both sides are connected, and a tension spring (25) is connected in the middle of the two. The tension spring (25) applies downward force to the clamping block (24) and presses it on the wire harness (3).

2. An electrical insulator to prevent wire harness loosening according to claim 1, characterized in that: The bottom of both sides of the through hole (22) is provided with a docking seat (26), and the docking seat (26) is provided with a plurality of anti-slip strips (27). The outer surface of the wire harness (3) contacts the working surface of the anti-slip strips (27), and the docking seat (26) is positioned to correspond to the clamping position of the mounting beam (23) and the clamping block (24).

3. An electrical insulator to prevent wire harness loosening according to claim 2, characterized in that: The mounting beam (23) has a movable hole (231) inside. The inner wall of the movable hole (231) is recessed around the perimeter of the limiting groove (232). The outer wall of the clamping block (24) is provided with a limiting strip (241) that matches the limiting groove (232). The bottom of the clamping block (24) extends a clamping plate (242), which matches the docking seat (26), and the two work together to act on the outer surface of the wire harness (3).

4. An electrical insulator to prevent wire harness loosening according to claim 3, characterized in that: The working surfaces of the docking seat (26) and the clamping plate (242) are composed of multiple arc surfaces. Multiple anti-slip strips (27) are evenly spaced and fixed in multiple arc surfaces of the docking seat (26) and the clamping plate (242). Multiple anti-slip grooves (271) are provided in the multiple anti-slip strips (27), and the top surfaces of the protrusions adjacent to the anti-slip grooves (271) are all arc-shaped.

5. An electrical insulator to prevent wire harness loosening according to claim 2, characterized in that: A partition plate (28) is provided at the bottom between the two mounting beams (23). One end of the tension spring (25) is fixed to the bottom of the middle of the two clamping blocks (24), and the other end is fixed to the partition plate (28). Under normal conditions, the tension spring (25) presses the clamping block (24) against the top of the docking seat (26). The size of the clamping block (24) matches the size of the docking seat (26).

6. An electrical insulator to prevent wire harness loosening according to claim 1, wherein: Pull rings (29) are installed on the top of the clamping blocks (24) on both sides.

7. A wiring harness characterized by: Includes the electrical insulator described in any one of claims 1-6.