Multifunctional single-line fast-mounting fixing buckle

By designing a multi-functional single-wire quick-install fixing clip, which adopts a spring tongue structure and double snap-fit, the problem of the narrow applicability of existing clips is solved. It achieves adaptability to various wire harness diameters and secure fixing, thereby reducing costs for car manufacturers.

CN224537710UActive Publication Date: 2026-07-21SHANDONG LIAOCHENG MINGYU AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG LIAOCHENG MINGYU AUTO PARTS CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing single-wire clips have limited functionality and cannot adapt to automotive wiring harnesses of various diameters, increasing manufacturing costs for automakers and causing inconvenience in use.

Method used

A multifunctional single-wire quick-install fixing buckle was designed, which adopts a spring tongue structure and a double snap-fit ​​fixing method to adapt to various automotive wiring harness diameters. The buckle also prevents wiring harness vibration by setting a protruding ridge at the center position of the first arc cavity and the spring tongue to snap into the corrugated tube.

Benefits of technology

The applicability of the buckle has been expanded, manufacturing costs have been reduced, and the double snap-fit ​​and convex ridge design has improved the fixing firmness and prevented the wire harness from shifting during vibration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of multifunctional single-line fast-mounting fixed buckles, including buckle main body, buckle cover, elastic tongue and expansion pin, first arc-shaped cavity is provided on the buckle main body, the bottom of first arc-shaped cavity is provided with the through-hole for installing expansion pin, the left end of buckle cover and elastic tongue is hinged with buckle main body, the elastic tongue is curved in the direction of right extension under buckle cover, the right end of buckle cover is connected with buckle main body, second arc-shaped cavity is provided on the buckle cover, the inside of second arc-shaped cavity is provided with the elastic tongue extending to first arc-shaped cavity. In the utility model, the traditional automobile wire harness fixed buckle is improved and innovated, the single function, the narrow application range, the inconvenient use and other technical problems in the prior art are solved. The utility model is clever in structure design, convenient to use, and effectively reduces the manufacturing cost of vehicle enterprise.
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Description

Technical Field

[0001] This utility model relates to the field of automotive wire code technology, specifically a multifunctional single-wire quick-install fixing buckle. Background Technology

[0002] Automotive wiring harness clips, also known as wire harness clips, cable clips, or cable tie holders, are indispensable small parts in automotive wiring harness systems. They are primarily used to neatly and securely fix electrical harnesses, conduits, or sensor cables to the vehicle's sheet metal, brackets, or specific locations, preventing them from wearing down, loosening, or causing abnormal noises due to vibration and shaking during vehicle operation. Common automotive wiring harness clips on the market come in three types: single-wire, double-wire, and multi-wire. Single-wire clips are the most widely used; however, current technology limits their functionality, restricting their use to specific diameter automotive wiring harnesses. They cannot accommodate diameter variations and are unsuitable for various diameter specifications, increasing manufacturing costs for automakers and offering limited convenience. Utility Model Content

[0003] The purpose of this utility model is to provide a multifunctional single-line quick-release fixing buckle to solve the technical defects existing in the background art.

[0004] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows: a multifunctional single-line quick-release fixing buckle, comprising a buckle body, a buckle cover, a spring tongue, and an expansion pin. The buckle body is provided with a first arc-shaped cavity, and a through hole for installing the expansion pin is opened at the bottom of the first arc-shaped cavity. The left ends of the buckle cover and the spring tongue are hinged to the buckle body. The spring tongue is curved and extends to the right below the buckle cover. The right end of the buckle cover is engaged with the buckle body. The buckle cover is provided with a second arc-shaped cavity, and a spring tongue extending towards the first arc-shaped cavity is provided on the inner side of the second arc-shaped cavity.

[0005] A slot is provided on the right side wall of the buckle body. The width of the slot is equal to the width of the buckle body, and the depth of the slot is equal to the depth of the first arc-shaped cavity. A groove is provided on the right side of the upper port of the slot, and a protrusion is provided on the lower left side wall inside the slot.

[0006] The width and depth of the latch are adapted to the width and depth of the slot. A square through hole is provided at the lower position of the latch for engaging with the protrusion provided inside the slot. A T-shaped protrusion is provided on the outer side of the upper end of the latch, and the lower end of the T-shaped protrusion engages with the groove provided at the upper port of the slot.

[0007] The tongue is positioned directly above the first arc-shaped cavity, with its middle section curving downwards.

[0008] The first arc-shaped cavity and the tongue are both provided with a raised ridge along their arc at their central positions.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] This invention improves upon traditional automotive wiring harness fixing clips, solving the technical problems of limited functionality, narrow applicability, and inconvenience in use found in existing technologies. Through a cleverly designed spring-loaded structure, this invention can be used with various automotive wiring harness diameters, broadening the applicability of the fixing clip and reducing manufacturing costs for automakers. The invention employs a double-locking mechanism, using a protrusion on the slot and a square through-hole on the spring-loaded tongue, and a T-shaped protrusion on the upper end of the spring-loaded tongue and a groove on the upper end of the slot, ensuring a robust connection between the clip body and the clip cover. Furthermore, the invention uses a raised ridge positioned at the center of the first arc-shaped cavity and the spring-loaded tongue, along its arc, to secure the wiring harness within the external corrugated tube, preventing movement of the wiring harness within the fixing clip due to vehicle vibration. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the buckle body and the spring tongue of this utility model;

[0013] Figure 3 This is a schematic diagram of the buckle structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the expansion pin structure of this utility model.

[0015] In the diagram: 1. Buckle body; 101. First arc-shaped cavity; 102. Through hole; 103. Slot; 104. Groove; 105. Protrusion; 2. Buckle cover; 201. Second arc-shaped cavity; 202. Buckle tongue; 203. Square through hole; 204. T-shaped protrusion; 3. Spring tongue; 4. Expansion pin; 5. Raised ridge. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] like Figure 1-4As shown, this utility model provides a multifunctional single-line quick-release fastener, including a fastener body 1, a fastener cover 2, a spring tongue 3, and an expansion pin 4. The fastener body 1 is provided with a first arc-shaped cavity 101. The bottom of the first arc-shaped cavity 101 is provided with a through hole 102 for installing the expansion pin 4. A slot 103 is provided on the right side wall of the fastener body 1. The width of the slot 103 is equal to the width of the fastener body 1, and the depth of the slot 103 is equal to the depth of the first arc-shaped cavity 101. A groove 104 is provided on the right side of the upper port of the slot 103. A protrusion 105 is provided on the lower left side wall inside the slot 103. In order to facilitate engagement with the fastener tongue 202 on the fastener cover 2, a slope is provided on the upper part of the protrusion 105.

[0018] In this invention, the left ends of the cover 2 and the spring tongue 3 are hinged to the buckle body 1. The spring tongue 3 extends to the right below the cover 2 in a curved shape and is positioned directly above the first arc-shaped cavity 101. The middle part of the spring tongue 3 bends downward. The right end of the cover 2 is engaged with the buckle body 1. The cover 2 is provided with a second arc-shaped cavity 201. The right end of the cover is provided with a latch 202. The width and depth of the latch 202 are adapted to the width and depth of the slot 103. A square through hole 203 is provided at the lower position of the latch 202 for engaging with the protrusion 105 provided inside the slot 103. A T-shaped protrusion 204 is provided on the outer side of the upper end of the latch 202. The lower end of the T-shaped protrusion 204 engages with the groove 104 provided at the upper end of the slot 103.

[0019] Since the exterior of automotive wiring harnesses is basically wrapped with corrugated conduit, in order to prevent the wiring harness from moving back and forth in the fixing clip due to vehicle vibration, a protruding rib 5 is provided at the center of the first arc-shaped cavity 101 and the spring tongue 3 along its arc. When the wiring harness is installed in the fixing clip, the protruding rib 5 engages with the texture groove of the corrugated conduit.

[0020] Working Example:

[0021] In use, the expansion pin 4 is installed into the through hole 102 at the bottom of the first arc-shaped cavity 101. The expansion pin used in this invention consists of an expansion rod and an expansion plug, and is a common plastic standard part on the market. During installation, the expansion pin is aligned with the pre-drilled hole on the vehicle body bracket. The expansion rod is pressed by hand, causing the expansion plug to expand after passing through the pre-drilled hole, thus fixing the fixing clip provided by this invention to the vehicle body bracket. Then, the automotive wiring harness is placed into the first arc-shaped cavity 101 of the clip body 1, the clip cover 2 is closed, and the clip tongue 202 is inserted into the clip groove 103. Pressing firmly on the protrusion 105 inside the clip groove 103 causes it to sink into the square through hole 203 of the clip tongue 202, achieving a locking and fixing. Simultaneously, the T-shaped protrusion 204 on the clip tongue 202 engages with the groove 104 at the upper end of the clip groove 103, thus preventing misalignment between the clip body 1 and the clip cover. Since the first arc-shaped cavity 101 and the tongue are both provided with protruding ribs 5 along their arc, the corrugated tube of the vehicle wiring harness is snapped and fixed with the protruding ribs 5 during use, thereby preventing the wiring harness from moving back and forth in the fixed buckle due to vehicle vibration.

[0022] The main innovation of this utility model lies in the provision of a spring tongue 3. The spring tongue 3 is curved and extends to the right below the cover 2. The spring tongue 3 is located directly above the first arc-shaped cavity 101. The middle part of the spring tongue 3 bends downward. This structural design is mainly reflected in the fact that when the diameter of the automotive wiring harness is large, the spring tongue 3 will spring up under pressure when the cover 2 is pressed during installation, so as to adapt to the installation of automotive wiring harnesses with larger diameters. This solves the problem of the limited applicability and inability to use with variable diameters in the prior art.

[0023] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A multifunctional single-line quick-release fastener, comprising a fastener body, a cover, a spring-loaded latch, and an expansion pin, characterized in that: The buckle body is provided with a first arc-shaped cavity, and the bottom of the first arc-shaped cavity is provided with a through hole for installing an expansion pin. The left end of the buckle cover and the spring tongue are hinged to the buckle body. The spring tongue is curved and extends to the right below the buckle cover. The right end of the buckle cover is engaged with the buckle body. The buckle cover is provided with a second arc-shaped cavity, and the inner side of the second arc-shaped cavity is provided with a spring tongue extending towards the first arc-shaped cavity.

2. The multifunctional single-line quick-release fixing buckle according to claim 1, characterized in that: A slot is provided on the right side wall of the buckle body. The width of the slot is equal to the width of the buckle body, and the depth of the slot is equal to the depth of the first arc-shaped cavity. A groove is provided on the right side of the upper port of the slot, and a protrusion is provided on the lower left side wall inside the slot.

3. The multifunctional single-line quick-release fixing buckle according to claim 2, characterized in that: The width and depth of the latch are adapted to the width and depth of the slot. A square through hole is provided at the lower position of the latch for engaging with the protrusion provided inside the slot. A T-shaped protrusion is provided on the outer side of the upper end of the latch, and the lower end of the T-shaped protrusion engages with the groove provided at the upper port of the slot.

4. The multifunctional single-line quick-release fixing buckle according to claim 1, characterized in that: The tongue is positioned directly above the first arc-shaped cavity, with its middle section curving downwards.

5. The multifunctional single-line quick-release fixing buckle according to claim 1, characterized in that: The first arc-shaped cavity and the tongue are both provided with a raised ridge along their arc at their central positions.