Rail transit wire harness anti-falling joint structure

Abstract

The utility model relates to an anti-drop joint structure for a rail transit wire harness, which is characterized in that an adjusting nut is rotatably screwed on the outer end surface of a female sleeve body, a screw is connected in the adjusting nut, the free end of the screw is horizontally inserted into the female sleeve body, a stepped hole is formed in the outer peripheral surface of the female sleeve body, a limiting column body is inserted into the stepped hole, and the limiting column body is inserted into the limiting column body. The limiting column body comprises a main body section and a limiting section, a through hole allowing the screw to penetrate through is formed in the main body section, a horizontal notch and a wedge-shaped notch connected with the horizontal notch are formed in the middle of the screw, and the limiting section located on the main body section and the large hole ground is sleeved with a compression spring; the connecting and locking between the mother sleeve body and the son sleeve body are completed by rotating the adjusting nut and controlling the position of the free end of the limiting section in the limiting column body, so that the falling between the mother connector and the son connector is avoided, the safety of the wire harness in the using process is improved, and the wire harness connector is suitable for industrial production and has a wide application prospect. And the practicability is very high.

Description

Technical Field

[0001] This utility model belongs to the technical field of wire harness fixing components, and particularly relates to a joint structure for preventing wire harness detachment in rail transit. Background Technology

[0002] A patent titled "High-Safety Automotive Wiring Harness" is disclosed in the existing Chinese patent database. The application number is CN202421278301.6, and the application date is June 5, 2024. This patent relates to the field of automotive wiring harnesses and specifically discloses a high-safety automotive wiring harness, including a wire core and a heat insulation layer covering the wire core. The heat insulation layer is strip-shaped and spirally wound around the outer periphery of the wire core. Several heat insulation cavities are formed within the heat insulation layer, extending along its length. The strip-shaped heat insulation layer spirally wraps around the outer periphery of the wire core, allowing for the covering of wire cores of different lengths. The heat insulation layer protects the wire core, and the heat insulation cavities filled with aerogel further enhance the heat insulation effect, thereby reducing the likelihood of damage to the wiring harness due to high temperatures and extending its service life.

[0003] After long-term use, the female and female connectors of existing rail transit harnesses are prone to detachment, which can lead to short circuits and pose safety hazards. Therefore, this paper aims to propose a rail transit harness anti-detachment connector structure that can effectively lock the connection at the joint and prevent the female and female connectors from detaching from each other. Utility Model Content

[0004] The technical problem to be solved by this utility model is how to solve the problem of easy detachment at the connection of existing wire harnesses. In order to improve its shortcomings, this utility model provides a rail transit wire harness anti-detachment joint structure.

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

[0006] A rail transit wire harness anti-detachment connector structure includes a circular cross-section wire, one end of which is connected to a male connector, and the other end to a female connector. A female sleeve is fitted over the male connector, and a female sleeve is fitted over the female connector. An adjusting nut is rotatably screwed onto the outer end face of the female sleeve, and a screw is connected inside the adjusting nut. The free end of the screw is horizontally inserted into the female sleeve. A stepped hole is formed on the outer circumferential surface of the female sleeve, and a limiting post is inserted into the stepped hole. The limiting post includes a main body section located in the large hole of the stepped hole and a limiting section inserted into the small hole of the stepped hole. A through hole for the screw to pass through is formed on the main body section, and a horizontal notch and a wedge-shaped notch connecting to the horizontal notch are formed in the middle of the screw. A compression spring is fitted onto the limiting section located between the main body section and the ground of the large hole. A limiting hole is formed on the outer circumferential surface of the female sleeve opposite to the limiting section.

[0007] As a preferred embodiment, a blind hole is provided on the inner end face of the free end of the female sleeve, and the blind hole is connected to the large hole of the stepped hole.

[0008] As a preferred embodiment, one end of the compression spring abuts against the lower end face of the main body section, and the other end abuts against the bottom surface of the large hole of the stepped hole.

[0009] As a preferred embodiment, the end face of the female sleeve is provided with a groove that mates with the end face of the female sleeve, and the outer end face of the female sleeve is flush with the inner end face of the flange plate of the female sleeve.

[0010] As a preferred embodiment, both the sub-sleeve and the mother sleeve are provided with a neck through which the wire passes, and an elastic rubber sleeve is attached to the inner surface of the neck.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by rotating the adjusting nut, the position of the free end of the limiting section in the limiting column is controlled, and the connection and locking between the female sleeve and the female sleeve is completed, thereby preventing the female connector and the female connector from falling off, improving the safety of the wire harness during use, and making it suitable for industrial production with strong practicality. Attached Figure Description

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

[0013] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0014] In the diagram: 1. Wire, 2. Male connector, 3. Female connector, 4. Female sleeve, 5. Female sleeve, 6. Adjusting nut, 7. Screw, 701. Horizontal notch, 702. Wedge notch, 8. Stepped hole, 9. Limiting post, 901. Main body section, 902. Limiting section, 10. Through hole, 11. Compression spring, 12. Limiting hole, 13. Blind hole, 14. Groove, 15. Neck, 16. Elastic rubber sleeve. Detailed Implementation

[0015] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1-2The diagram shows a structure for preventing the wire harness from detaching. It includes a circular cross-section conductor 1, with a male connector 2 at one end and a female connector 3 at the other. A female sleeve 4 is fitted over the male connector 2, and a female sleeve 5 is fitted over the female connector 3. An adjusting nut 6 is rotatably screwed onto the outer end face of the female sleeve 5. A screw 7 is connected inside the adjusting nut 6, with its free end horizontally inserted into the female sleeve 5. A stepped hole 8 is formed on the outer circumference of the female sleeve 5, and a limiting post is inserted into the stepped hole 8. 9. The limiting column 9 includes a main body section 901 located within the large hole of the stepped hole 8 and a limiting section 902 inserted into the small hole of the stepped hole 8. The main body section 901 has a through hole 10 for the screw 7 to pass through. The middle of the screw 7 has a horizontal notch 701 and a wedge-shaped notch 702 connected to the horizontal notch 701. A compression spring 11 is sleeved on the limiting section 902 located between the main body section 901 and the ground of the large hole. A limiting hole 12 is formed on the outer circumferential surface of the sub-sleeve 4 directly opposite the limiting section 902. A blind hole 13 is formed on the inner end face of the free end of the female sleeve 5, and the blind hole 13 is connected to the large hole of the stepped hole 8. One end of the compression spring 11 abuts against the lower end face of the main body section 901, and the other end abuts against the bottom surface of the large hole of the stepped hole 8. The end face of the female sleeve 5 is provided with a groove 14 that mates with the end face of the female sleeve 4. The outer end face of the female sleeve 5 is flush with the inner end face of the flange of the female sleeve 4. Both the female sleeve 4 and the female sleeve 5 are provided with a neck 15 through which the wire 1 passes. An elastic rubber sleeve 16 is attached to the inner surface of the neck 15.

[0017] During operation, the operator inserts the female connector 3 into the female sleeve 5 and simultaneously inserts the male connector into the female sleeve 4. After completion, the operator rotates the adjusting nut 6, causing the screw 7 inside the adjusting nut 6 to move horizontally outward. This positions the horizontal notch 701 on the screw 7 at the through hole 10 of the main body section 901 of the limiting post 9. At this time, the compression spring 11 is in its natural state, pushing the main body section 901 upward, causing the limiting section 902 to retract. After retraction, the female sleeve 4 moves into the groove 14 of the female sleeve 5, simultaneously completing the connection between the male connector and the female connector 3. After the connection is completed, the operator rotates the adjusting nut 6 in the opposite direction, causing the screw 7 to move horizontally inward. This positions the wedge-shaped notch on the screw 7 at the through hole 10 of the main body section 901 of the limiting post 9. The main body section 901 presses down the compression spring 11, causing the limiting section 902 to extend and insert into the limiting hole 12, completing the connection and locking between the female sleeve 4 and the female sleeve 5.

[0018] 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 rail transit wire harness anti-dropping joint structure, characterized in that: The device includes a circular cross-section wire (1), one end of which is connected to a male connector (2) and the other end to a female connector (3). A female sleeve (4) is fitted over the male connector (2), and a female sleeve (5) is fitted over the female connector (3). An adjusting nut (6) is rotatably screwed onto the outer end face of the female sleeve (5). A screw (7) is connected inside the adjusting nut (6), and the free end of the screw (7) is horizontally inserted into the female sleeve (5). A stepped hole (8) is formed on the outer circumference of the female sleeve (5), and a limiting post (9) is inserted into the stepped hole (8). (9) includes a main body section (901) located in the large hole of the stepped hole (8) and a limiting section (902) inserted in the small hole of the stepped hole (8). The main body section (901) has a through hole (10) for the screw (7) to pass through. The middle part of the screw (7) has a horizontal notch (701) and a wedge-shaped notch (702) connected to the horizontal notch (701). A compression spring (11) is sleeved on the limiting section (902) located between the main body section (901) and the ground of the large hole. A limiting hole (12) is opened on the outer circumference of the sub-sleeve (4) opposite to the limiting section (902).

2. The track transit wire harness anti-dropping connector structure according to claim 1, characterized in that: A blind hole (13) is provided on the inner end face of the free end of the female sleeve (5), and the blind hole (13) is connected to the large hole of the stepped hole (8).

3. The track transit wire harness anti-drop connector structure according to claim 2, characterized in that: One end of the compression spring (11) abuts against the lower end face of the main body section (901), and the other end abuts against the bottom surface of the large hole of the stepped hole (8).

4. The track transit wire harness anti-drop connector structure according to claim 3, characterized in that: The end face of the female sleeve (5) is provided with a groove (14) that matches the end face of the female sleeve (4), and the outer end face of the female sleeve (5) is flush with the inner end face of the flange of the female sleeve (4).

5. The track transit wire bundle anti-dropping joint structure according to any one of claims 1-4, characterized in that: Both the sub-sleeve (4) and the mother sleeve (5) are provided with a neck (15) through which the wire (1) passes, and an elastic rubber sleeve (16) is attached to the inner surface of the neck (15).

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