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

Abstract

The utility model discloses a strong current power supply transmission wire harness suitable for a rail public transportation system, comprising a wire harness body and a plug, the left end of the wire harness body is provided with a plurality of connectors, the outer surface of the wire harness body is provided with a circular block, the right end of the circular block is symmetrically provided with clamping mechanisms, the right end of the circular block is provided with an external thread cylinder, and the outer surface of the wire harness body is sleeved with a moving ring. The inner wall of the rotating ring is provided with threads. The left side of the wire harness body is provided with a plug, the right end of the plug is provided with a plurality of connecting cylinders, and the right end of the plug is provided with a fixing ring. The connector is inserted into the connecting cylinder, the clamping block is inserted into the clamping hole, the wire harness body is connected with the plug, then the rotating ring is rotated, the stopping block is inserted into the sliding groove to abut against the moving block and the inner wall of the sliding groove, the moving block is prevented from resetting, the clamping block is prevented from leaving the clamping hole, and therefore the connecting stability of the wire harness body and the plug is improved. The plug of the wire harness body can be quickly replaced.

Description

Technical Field

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

[0002] Rail transit systems refer to transportation systems guided by fixed tracks, specifically designed for urban or regional public transportation services. High-voltage power transmission harnesses are modular cable assemblies used in rail transit systems to efficiently and safely transmit high-voltage electrical energy between fixed power supply facilities (such as substations) and moving trains. In existing technologies, the harness body and plug of high-voltage power transmission harnesses are fixedly connected, making them inconvenient to replace as needed. Therefore, those skilled in the art have provided a high-voltage power transmission harness suitable for rail transit systems to address the problems mentioned in the background section. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a high-voltage power transmission harness suitable for rail transit systems, including a harness body and a plug. Several connectors are installed on the left end of the harness body. A circular block is installed on the outer surface of the harness body. A snap-fit ​​mechanism is symmetrically installed on the right end of the circular block. An external threaded cylinder is installed on the right end of the circular block. A movable ring is sleeved on the outer surface of the harness body. A blocking block is symmetrically installed on the left end of the movable ring. A rotating ring is rotatably connected to the right end of the movable ring. A thread is provided on the inner wall of the rotating ring. A plug is located on the left side of the harness body. Several connector cylinders are installed on the right end of the plug. A fixing ring is installed on the right end of the plug.

[0004] Preferably, the inner diameter of the fixing ring is the same as the diameter of the circular block.

[0005] Preferably, the locking mechanism includes a sliding groove, a locking block, and a locking hole. The sliding groove is opened at the right end of the circular block. A movable block is slidably connected inside the sliding groove. A spring is symmetrically installed at the inner end of the movable block, and a locking block is installed at the outer end of the movable block. The locking block passes through the circular block, and the left end face of the locking block is an arc surface.

[0006] Preferably, guide blocks are symmetrically installed on the inner wall of the chute, and the guide blocks pass through the moving block.

[0007] Preferably, the card holes are symmetrically opened on the side of the fixing ring, and the card holes correspond to the positions of the card blocks.

[0008] Preferably, the rotating ring has an annular groove at its left end, an annular block is slidably connected inside the annular groove, and the annular block is fixedly connected to the moving ring. Both the annular groove and the annular block have T-shaped cross-sections.

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

[0010] When replacing the plug, the connector is inserted into the connector cylinder, and the locking block is inserted into the locking hole to connect the wire harness body and the plug. Then, the rotating ring is rotated to make the blocking block insert into the slide groove to abut against the moving block and the inner wall of the slide groove, preventing the moving block from resetting and preventing the locking block from leaving the locking hole, thereby improving the connection stability of the wire harness body and the plug, and facilitating quick and easy replacement of the plug. Attached Figure Description

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

[0012] Figure 2 This is a schematic diagram of the connector structure of this application;

[0013] Figure 3 This is a schematic diagram of the card receiving mechanism in this application;

[0014] Figure 4 This is a schematic diagram of the rotating ring structure of this application;

[0015] Figure 5 This is a schematic diagram of the plug structure of this application;

[0016] In the picture:

[0017] 1. Wire harness body; 2. Round block; 3. Connector; 4. Snap-fit ​​mechanism; 5. Slide groove; 6. Moving block; 7. Guide block; 8. Locking block; 9. Spring; 10. External threaded cylinder;

[0018] 11. Moving ring; 12. Blocking block; 13. Annular block; 14. Rotating ring; 15. Thread; 16. Annular groove; 17. Plug; 18. Connecting cylinder; 19. Fixing ring; 20. Locking hole. 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 1-5This embodiment provides a high-voltage power transmission harness suitable for rail transit systems, including a harness body 1 and a plug 17. Several connectors 3 are installed on the left end of the harness body 1. A circular block 2 is installed on the outer surface of the harness body 1. A snap-fit ​​mechanism 4 is symmetrically installed on the right end of the circular block 2. The snap-fit ​​mechanism 4 includes a sliding groove 5, a snap-fit ​​block 8, and snap-fit ​​holes 20. The sliding groove 5 is located on the right end of the circular block 2. A moving block 6 is slidably connected inside the sliding groove 5. Guide blocks 7 are symmetrically installed on the inner wall of the sliding groove 5, and the guide blocks 7 pass through the moving block 6. A spring 9 is symmetrically installed on the inner end of the moving block 6, and a snap-fit ​​block 8 is installed on the outer end of the moving block 6, and the snap-fit ​​block 8 passes through the circular block 2. The left end face of the snap-fit ​​block 8 is arc-shaped. Snap-fit ​​holes 20 are symmetrically located on the fixing ring. On the side of 19, and the position of the card hole 20 corresponds to the position of the card block 8, the right end of the round block 2 is equipped with an external threaded cylinder 10, the outer surface of the wire harness body 1 is fitted with a moving ring 11, the left end of the moving ring 11 is symmetrically equipped with a blocking block 12, the right end of the moving ring 11 is rotatably connected to a rotating ring 14, the left end of the rotating ring 14 is provided with an annular groove 16, the annular groove 16 is slidably connected to an annular block 13, and the annular block 13 is fixedly connected to the moving ring 11. The cross-sections of the annular groove 16 and the annular block 13 are both T-shaped. The inner wall of the rotating ring 14 is provided with a thread 15. The left side of the wire harness body 1 is provided with a plug 17, the right end of the plug 17 is equipped with several connecting cylinders 18, and the right end of the plug 17 is equipped with a fixing ring 19, and the inner diameter of the fixing ring 19 is the same as the diameter of the round block 2.

[0021] The working principle of this utility model is as follows: When replacing the plug 17, the connector 3 is inserted into the connector tube 18, and at the same time, the round block 2 is inserted into the fixing ring 19. During this process, the arc surface of the locking block 8 is squeezed into the sliding groove 5, which causes the moving block 6 to move and compress the spring 9. When the round block 2 is fully inserted into the fixing ring 19, the locking block 8 moves to the position of the locking hole 20. The spring 9 pushes the moving block 6 to reset, and the moving block 6 drives the locking block 8 to be inserted into the locking hole 20, so that the connector 3 is fixed in the connector tube 18, thereby connecting the wire harness body 1 and the plug 17.

[0022] Then, one hand controls the position of the moving ring 11 so that the blocking block 12 is located between the two springs 9, and the other hand rotates the rotating ring 14 so that the thread 15 and the external threaded cylinder 10 are engaged. The rotating ring 14 pushes the moving ring 11 to move towards the round block 2 so that the blocking block 12 is inserted between the two springs 9. The blocking block 12 is located in the slide groove 5 and abuts against the moving block 6 and the inner wall of the slide groove 5 to prevent the moving block 6 from resetting and to prevent the locking block 8 from leaving the locking hole 20, thereby improving the connection stability of the wire harness body 1 and the plug 17.

[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 high-voltage power transmission harness suitable for rail transit systems, comprising a harness body (1) and a plug (17), characterized in that, The wire harness body (1) has several connectors (3) installed on the left end, a round block (2) installed on the outer surface of the wire harness body (1), a snap-fit ​​mechanism (4) symmetrically installed on the right end of the round block (2), an external threaded cylinder (10) installed on the right end of the round block (2), a moving ring (11) sleeved on the outer surface of the wire harness body (1), a blocking block (12) symmetrically installed on the left end of the moving ring (11), a rotating ring (14) rotatably connected to the right end of the moving ring (11), a thread (15) is provided on the inner wall of the rotating ring (14), a plug (17) is provided on the left side of the wire harness body (1), several connectors (18) are installed on the right end of the plug (17), and a fixing ring (19) is installed on the right end of the plug (17).

2. The high-voltage power transmission harness for rail transit systems according to claim 1, characterized in that, The inner diameter of the fixing ring (19) is the same as the diameter of the circular block (2).

3. The high-voltage power transmission harness suitable for rail transit systems according to claim 1, characterized in that, The locking mechanism (4) includes a sliding groove (5), a locking block (8) and a locking hole (20). The sliding groove (5) is opened at the right end of the circular block (2). The sliding block (6) is slidably connected inside the sliding groove (5). A spring (9) is symmetrically installed at the inner end of the sliding block (6). The locking block (8) is installed at the outer end of the sliding block (6), and the locking block (8) passes through the circular block (2). The left end face of the locking block (8) is an arc surface.

4. A high-voltage power transmission harness suitable for rail transit systems according to claim 3, characterized in that, Guide blocks (7) are symmetrically installed on the inner wall of the chute (5), and the guide blocks (7) pass through the moving block (6).

5. A high-voltage power transmission harness suitable for rail transit systems according to claim 3, characterized in that, The card holes (20) are symmetrically opened on the side of the fixing ring (19), and the card holes (20) correspond to the positions of the card blocks (8).

6. A high-voltage power transmission harness suitable for rail transit systems according to claim 1, characterized in that, The rotating ring (14) has an annular groove (16) at its left end. An annular block (13) is slidably connected inside the annular groove (16), and the annular block (13) is fixedly connected to the moving ring (11). The cross-sections of the annular groove (16) and the annular block (13) are both T-shaped.

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