Rail transit line bundle quick fixing and mounting device

By using the limiting and auxiliary locking blocks of the U-shaped wire harness fixing seat, the problem of excessive swaying of the rail transit wire harness during vehicle operation is solved, achieving stable fixing of the wire harness and preventing breakage.

CN224305281UActive Publication Date: 2026-05-29YANGZHOU DENA MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGZHOU DENA MASCH CO LTD
Filing Date
2025-04-03
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing rail transit wiring harnesses are prone to breakage due to excessive swaying caused by vibration and shaking during vehicle operation.

Method used

The U-shaped wire harness fixing base, combined with the design of limit blocks and auxiliary blocks, uses upper and lower arc notches to fix the wire harness and reduce the swing amplitude of the middle part of the wire harness.

Benefits of technology

It effectively reduces the swing amplitude of the wiring harness during vehicle operation, avoids excessive stress on the ends of the wiring harness, prevents wiring harness breakage, and improves installation stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224305281U_ABST
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Abstract

The utility model relates to a kind of rail transit wiring harness quick fixing installation device, including wiring harness fixing seat, the wiring harness fixing seat is set to U type, the vertical movement limiting component on the middle section of wiring harness fixing seat, limiting component includes moving rod, the free end of moving rod in wiring harness fixing seat is connected with limiting block, upper arc-shaped gap is set in the both sides of limiting block, auxiliary block is fixedly connected in the wiring harness fixing seat below upper arc-shaped gap, lower arc-shaped gap is set in the outside of auxiliary block, the space of clamping wiring harness is formed between upper arc-shaped gap and corresponding lower arc-shaped gap, due to the cooperation of limiting block and auxiliary block, wiring harness of overhanging part is fixed between upper arc-shaped gap and corresponding lower arc-shaped gap, reduce the swing amplitude of wiring harness middle part in the process of car body operation, to reduce the stress of wiring harness end, avoid its fracture, applicable to industrial production, with very strong practicality.
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Description

Technical Field

[0001] This utility model belongs to the technical field of wire harness fixing components, and particularly relates to a quick fixing and installation device for rail transit wire harnesses. Background Technology

[0002] A patent entitled "Wire Harness Fixing Base" is disclosed in the existing Chinese patent database, with application number CN202223344909.8 and application date of 2022-12-13. It is a wire harness fixing base for automotive sheet metal wiring. To facilitate the installation and fixing of automotive wire harnesses and improve their installation stability, this utility model proposes a wire harness fixing base. The fixing component includes a fixing block and a connecting cap. The fixing block has a wire harness through hole for the automotive wire harness, and the side wall of the fixing block is connected to the connecting cap. The inner wall of the connecting cap has a connecting groove. The supporting component includes a supporting base ring, which is inserted into the connecting cap and abuts against the inner wall of the connecting cap. A hook on the outer wall of the supporting base ring is connected to the connecting groove for hook fastening. The wiring harness fixing bracket of this utility model allows automotive wiring harnesses to pass through sheet metal holes on sheet metal parts, which not only facilitates the installation and fixing of automotive wiring harnesses, but also prevents the automotive wiring harness from moving and misaligning in the sheet metal holes due to excessively large hole diameters, thereby improving the installation stability of automotive wiring harnesses.

[0003] During the operation of existing rail transit wiring harnesses, the vibration and shaking of the vehicle body can cause excessive swing of the wiring harness, making the wiring harness joints prone to breakage. Therefore, this paper aims to propose a rapid fixing and installation device for rail transit wiring harnesses, which can fix the position of suspended wiring harnesses and improve their stability during vehicle operation. Utility Model Content

[0004] The technical problem to be solved by this utility model is how to solve the problem of excessive swing amplitude of the wiring harness during vehicle operation. In order to improve its shortcomings, this utility model provides a quick fixing and installation device for rail transit wiring harnesses.

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

[0006] A rapid fixing and installation device for rail transit wiring harnesses includes a wiring harness fixing base, which is U-shaped. A limiting component that moves vertically along the middle section of the wiring harness fixing base is provided. The limiting component includes a moving rod. The free end of the moving rod located inside the wiring harness fixing base is connected to a limiting block. Both sides of the limiting block are provided with upper arc-shaped notches. An auxiliary block is fixedly connected inside the wiring harness fixing base below the upper arc-shaped notches. The outer side of the auxiliary block is provided with a lower arc-shaped notch. A space for fixing the wiring harness is formed between the upper arc-shaped notch and the corresponding lower arc-shaped notch.

[0007] As a preferred embodiment, the middle section of the wire harness fixing seat is provided with a threaded through hole, the moving rod is provided with a threaded section, the moving rod is screwed into the threaded through hole, and the limiting block is rotatably connected to the free end of the moving rod.

[0008] As a preferred embodiment, the auxiliary card block includes an L-shaped base plate, the vertical section of which is fixedly connected to the inner wall of the ear plate section of the wire harness fixing seat, the horizontal section of which is fixedly connected to the inner wall of the middle section of the wire harness fixing seat, and a plurality of ribs integrally provided inside the base plate, with the lower arc-shaped notch opened on the ribs.

[0009] As a preferred embodiment, rubber pads are attached to the inner surfaces of both the upper and lower arc-shaped notches.

[0010] As a preferred embodiment, a rotating handle is integrally provided on the lower free end of the moving rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are: due to the cooperation of the limiting block and the auxiliary block, the suspended part of the wire harness can be fixed between the upper arc-shaped notch and the corresponding lower arc-shaped notch, reducing the swing amplitude of the middle part of the wire harness during vehicle operation, thereby reducing the force on the end of the wire harness and preventing it from breaking. It is suitable for industrial production and has strong practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Wire harness fixing seat, 2. Moving rod, 201. Threaded section, 3. Limiting block, 4. Upper arc-shaped notch, 5. Auxiliary block, 501. Base plate, 502. Rib plate, 6. Lower arc-shaped notch, 7. Threaded through hole, 8. Rubber pad, 9. Rotating handle. Detailed Implementation

[0014] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0015] like Figure 1As shown, a rapid fixing and installation device for rail transit wire harnesses includes a wire harness fixing base 1, which is U-shaped. A vertically movable limiting component is located on the middle section of the wire harness fixing base 1. The limiting component includes a moving rod 2. A limiting block 3 is connected to the free end of the moving rod 2, which is located inside the wire harness fixing base 1. Upper arc-shaped notches 4 are provided on both sides of the limiting block 3. An auxiliary block 5 is fixedly connected inside the wire harness fixing base 1 below the upper arc-shaped notches 4. A lower arc-shaped notch 6 is provided on the outer side of the auxiliary block 5. A space for securing the wire harness is formed between the upper arc-shaped notches 4 and the corresponding lower arc-shaped notches 6. A threaded through hole 7 is provided on the middle section of the wire harness fixing base 1. A threaded section 201 is provided on the moving rod 2. The moving rod 2 is screwed into the threaded through hole 7. The limiting block 3 is rotatably connected to the free end of the moving rod 2. The auxiliary locking block 5 includes an L-shaped base plate 501. The vertical section of the base plate 501 is fixedly connected to the inner wall of the ear plate section of the wire harness fixing seat 1, and the horizontal section of the base plate 501 is fixedly connected to the inner wall of the middle section of the wire harness fixing seat 1. Several ribs 502 are integrally provided inside the base plate 501, and a lower arc-shaped notch 6 is formed on the rib 502. Rubber pads 8 are attached to the inner surfaces of both the upper arc-shaped notch 4 and the lower arc-shaped notch 6. A rotating handle 9 is integrally provided on the lower free end of the moving rod 2.

[0016] During operation, the operator fixes the wire harness fixing seat 1 to the vehicle body with bolts. After fixing, the wire harness is inserted through the lower arc-shaped notch 6. By rotating the handle 9, the moving rod 2 rotates in the threaded hole, which drives the limit block 3 to move toward the auxiliary block 5, so that the upper arc-shaped notch 4 gradually closes toward the lower arc-shaped notch 6, thus fixing the wire harness and reducing the swing amplitude of the middle part of the wire harness during vehicle operation.

[0017] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A rapid fixing and installation device for rail transit wiring harnesses, characterized in that: The device includes a wire harness fixing seat (1), which is U-shaped. A limiting component that moves vertically along the middle section of the wire harness fixing seat (1) is provided. The limiting component includes a moving rod (2). The free end of the moving rod (2) located in the wire harness fixing seat (1) is connected to a limiting block (3). Both sides of the limiting block (3) are provided with an upper arc-shaped notch (4). An auxiliary block (5) is fixedly connected in the wire harness fixing seat (1) located below the upper arc-shaped notch (4). A lower arc-shaped notch (6) is provided on the outside of the auxiliary block (5). A space for locking the wire harness is formed between the upper arc-shaped notch (4) and the corresponding lower arc-shaped notch (6).

2. The rapid fixing and installation device for rail transit wiring harnesses according to claim 1, characterized in that: The wire harness fixing seat (1) has a threaded through hole (7) in the middle section, the moving rod (2) has a threaded section (201), the moving rod (2) is screwed into the threaded through hole (7), and the limiting block (3) is rotatably connected to the free end of the moving rod (2).

3. The rapid fixing and installation device for rail transit wiring harnesses according to claim 2, characterized in that: The auxiliary card block (5) includes an L-shaped base plate (501). The vertical section of the base plate (501) is fixed to the inner wall of the ear plate section of the wire harness fixing seat (1), and the horizontal section of the base plate (501) is fixed to the inner wall of the middle section of the wire harness fixing seat (1). A plurality of ribs (502) are integrally provided inside the base plate (501), and the lower arc-shaped notch (6) is opened on the rib (502).

4. The rapid fixing and installation device for rail transit wiring harnesses according to claim 3, characterized in that: Rubber pads (8) are attached to the inner surfaces of both the upper arc-shaped notch (4) and the lower arc-shaped notch (6).

5. A rapid fixing and installation device for rail transit wiring harnesses according to any one of claims 1-4, characterized in that: A rotating handle (9) is integrally provided on the lower free end of the moving rod (2).