Weak-current power supply transmission wire harness suitable for rail transit system

Abstract

The utility model discloses a weak current power supply transmission wire harness suitable for a rail public transportation system, comprising a wire harness, one end of the wire harness is provided with a connector, the outer surface of the wire harness is provided with a take-up mechanism, the take-up mechanism comprises a hollow plate and moving wheels, the hollow plate is internally provided with a plurality of moving wheels, the wire harness is wound on the outer surfaces of the plurality of moving wheels, and the wire harness is connected with the connector. A fixing cover is installed at the lower end of the hollow plate, threaded rods are rotationally connected to the positions, corresponding to the moving holes, in the fixing cover, one ends of the threaded rods penetrate through the fixing cover to be fixedly connected with the first bevel gear, the outer surfaces of the threaded rods are in threaded connection with threaded sleeves, and the threaded sleeves are rotationally connected with the moving wheels. According to the utility model, the rotating blocks drive the moving wheels to move towards the outer side, and the plurality of moving wheels move towards the outer side, so that the wire harness in the hollow plate is extended, and the redundant part of the wire harness is folded and contracted into the hollow plate, thereby controlling the exposed length of the wire harness and preventing a plurality of wire harnesses from being wound together.

Description

Technical Field

[0001] This utility model relates to the field of power transmission harnesses, specifically to a low-voltage power transmission harness suitable for rail transit systems. Background Technology

[0002] Low-voltage power transmission harnesses in rail transit systems refer to assemblies of wires specifically designed for use in rail transit systems (such as subways, light rail, and trams) to transmit low-voltage signals or energy. These harnesses typically contain multiple insulated wires encased in a common sheath for ease of installation, protection, and management. Existing power transmission harnesses lack waterproof and dustproof interfaces. Furthermore, the harnesses are often quite long, and repeated plugging and unplugging can cause them to become tangled and difficult to manage. Therefore, those skilled in the art have developed a low-voltage power transmission harness suitable for rail transit systems to address the problems described in the background section. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a low-voltage power transmission harness suitable for rail transit systems, including a harness, a connector installed at one end of the harness, and a take-up mechanism installed on the outer surface of the harness. The take-up mechanism includes a hollow plate and moving wheels. Several moving wheels are arranged inside the hollow plate, and the several moving wheels are arranged alternately. The harness is wound around the outer surface of the several moving wheels.

[0004] Several moving holes are made at the lower end of the hollow plate corresponding to the position of the moving wheel. A fixed cover is installed at the lower end of the hollow plate. A threaded rod is rotatably connected inside the fixed cover at the position corresponding to the moving hole. One end of the threaded rod passes through the fixed cover and is fixedly connected to a bevel gear. A threaded sleeve is threadedly connected to the outer surface of the threaded rod. The threaded sleeve is rotatably connected to the moving wheel. The threaded sleeve, the hollow plate, and the fixed cover are slidably connected.

[0005] Preferably, a conical protective cloth is installed on the outer surface of the connector, and an annular adhesive is installed on the side of the conical protective cloth.

[0006] Preferably, a rotating rod is provided on the side of the fixed cover, and a support block is symmetrically connected to the outer surface of the rotating rod, and the support block is fixedly connected to the fixed cover.

[0007] Preferably, a plurality of bevel gears 2 are mounted on the outer surface of the rotating rod, and the bevel gears 2 mesh with the bevel gears 1.

[0008] Preferably, a rotating block is mounted on the side of the rotating rod.

[0009] The technical effects and advantages of this utility model are as follows:

[0010] 1. This utility model uses a ring-shaped adhesive to stick a conical protective cloth to the outside of the connection port, so that the conical protective cloth covers the outside of the connection of the connector. The conical protective cloth prevents water and dust from entering the connection of the connector, thus playing a role in waterproofing and dustproofing.

[0011] 2. This utility model uses a rotating block to drive the moving wheels to move outward. The movement of several moving wheels outward stretches the wire harness inside the hollow plate, and the excess part of the wire harness is folded and retracted into the hollow plate, thereby controlling the exposed length of the wire harness, preventing multiple wire harnesses from getting tangled together, and ensuring the wire harnesses are kept separate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this application;

[0013] Figure 2 This is a schematic diagram of the connector structure of this application;

[0014] Figure 3 This is a structural schematic diagram of the hollow slab of this application;

[0015] Figure 4 This is a schematic diagram of the structure of the fixing cover in this application;

[0016] In the picture:

[0017] 1. Wire harness; 2. Connector; 3. Conical protective cloth; 4. Circular adhesive; 5. Wire take-up mechanism; 6. Hollow plate; 7. Casters; 8. Moving hole; 9. Fixing cover;

[0018] 10. Threaded rod; 11. Threaded sleeve; 12. Bevel gear one; 13. Rotating rod; 14. Bevel gear two; 15. Rotating block. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0020] Please see Figures 1-4This embodiment provides a low-voltage power transmission harness suitable for rail transit systems, including a harness 1. A connector 2 is installed at one end of the harness 1. A conical protective cloth 3 is installed on the outer surface of the connector 2, and an annular adhesive 4 is installed on the side of the conical protective cloth 3. A take-up mechanism 5 is installed on the outer surface of the harness 1. The take-up mechanism 5 includes a hollow plate 6 and movable wheels 7. Several movable wheels 7 are arranged alternately inside the hollow plate 6. The harness 1 is wound around the outer surface of the movable wheels 7. Several moving holes 8 are opened at the lower end of the hollow plate 6 corresponding to the positions of the movable wheels 7. A fixing cover 9 is installed at the lower end of the hollow plate 6 for fixing... Inside the cover 9, a threaded rod 10 is rotatably connected to the position corresponding to the movable hole 8. One end of the threaded rod 10 passes through the fixed cover 9 and is fixedly connected to the bevel gear 12. The outer surface of the threaded rod 10 is threadedly connected to the threaded sleeve 11, and the threaded sleeve 11 is rotatably connected to the movable wheel 7. The threaded sleeve 11 is slidably connected to the hollow plate 6 and the fixed cover 9. A rotating rod 13 is provided on the side of the fixed cover 9. The outer surface of the rotating rod 13 is symmetrically rotatably connected to the support block, and the support block is fixedly connected to the fixed cover 9. Several bevel gears 14 are installed on the outer surface of the rotating rod 13, and the bevel gears 14 mesh with the bevel gear 12. A rotating block 15 is installed on the side of the rotating rod 13.

[0021] The working principle of this utility model is as follows: the connector 2 is connected for operation, and then the conical protective cloth 3 is glued to the outside of the connection port by the ring adhesive 4, so that the conical protective cloth 3 covers the outside of the connection of the connector 2. The conical protective cloth 3 prevents water and dust from entering the connection of the connector 2, and plays a role in waterproofing and dustproofing.

[0022] The rotating block 15 drives the rotating rod 13 to rotate. The rotating rod 13 drives the threaded rod 10 to rotate through the meshing of the second bevel gear 14 and the first bevel gear 12. The threaded rod 10 drives the threaded sleeve 11 to move, so that several threaded sleeves 11 drive the moving wheel 7 to move outward. The moving wheel 7 moves outward, so that the wire harness 1 inside the hollow plate 6 is stretched. The excess part of the wire harness 1 is folded and retracted into the hollow plate 6, thereby controlling the exposed length of the wire harness 1, avoiding multiple wire harnesses 1 from getting tangled together, and ensuring that the wire harness 1 is kept separate.

[0023] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A low-voltage power transmission harness suitable for rail transit systems, comprising a harness (1), characterized in that, The wire harness (1) has a connector (2) installed at one end, and a take-up mechanism (5) is installed on the outer surface of the wire harness (1). The take-up mechanism (5) includes a hollow plate (6) and a moving wheel (7). Several moving wheels (7) are arranged inside the hollow plate (6), and the several moving wheels (7) are arranged alternately. The wire harness (1) is wound around the outer surface of the several moving wheels (7). Several moving holes (8) are opened at the lower end of the hollow plate (6) corresponding to the position of the moving wheel (7). A fixed cover (9) is installed at the lower end of the hollow plate (6). A threaded rod (10) is rotatably connected inside the fixed cover (9) corresponding to the position of the moving hole (8). One end of the threaded rod (10) passes through the fixed cover (9) and is fixedly connected to the bevel gear (12). A threaded sleeve (11) is threadedly connected to the outer surface of the threaded rod (10). The threaded sleeve (11) is rotatably connected to the moving wheel (7). The threaded sleeve (11) is slidably connected to the hollow plate (6) and the fixed cover (9).

2. The low-voltage power transmission harness suitable for rail transit systems according to claim 1, characterized in that, The outer surface of the connector (2) is fitted with a conical protective cloth (3), and the side of the conical protective cloth (3) is fitted with an annular adhesive (4).

3. A low-voltage power transmission harness suitable for rail transit systems according to claim 1, characterized in that, The fixed cover (9) is provided with a rotating rod (13) on its side. The outer surface of the rotating rod (13) is symmetrically connected to the support block, and the support block is fixedly connected to the fixed cover (9).

4. A low-voltage power transmission harness suitable for rail transit systems according to claim 1, characterized in that, Several bevel gears (14) are mounted on the outer surface of the rotating rod (13), and the bevel gears (14) mesh with the bevel gears (12).

5. A low-voltage power transmission harness suitable for rail transit systems according to claim 3, characterized in that, A rotating block (15) is installed on the side of the rotating rod (13).

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