A metro vehicle current collector isolation device

Abstract

This utility model belongs to the field of current collector technology and provides a current collector isolation device for subway vehicles. It includes a current collector body, a fixing plate bolted to the front of the current collector body, an isolation telescopic rod installed on the top of the fixing plate, a current collector bracket movably connected to the inner side of the current collector body, a movable frame installed on the inner side of the current collector bracket, a connecting plate integrally formed at one end of the movable frame, a power receiving plate bolted to the top of the connecting plate, a movable rod bolted to the back of the connecting plate, a movable bracket rotatably connected to the inner side of the movable rod via a pin, an isolation plate bolted to one side of the movable bracket, a push sleeve bolted to the top of the movable frame, and a power receiving bracket installed on one side of the current collector bracket. Through the isolation telescopic rod, movable rod, movable bracket, and isolation plate, the current collector isolation device for subway vehicles can perform a dual isolation function, thus improving the isolation effect and safety.

Description

Technical Field

[0001] This utility model relates to the field of current collector technology, specifically to an isolation device for a current collector in a subway vehicle. Background Technology

[0002] A metro vehicle current collector isolation device is a device or circuit system used to electrically isolate the current collector of a metro vehicle from the power supply system. When the current collector of a metro vehicle malfunctions or needs to be repaired, in order not to affect the normal operation of the vehicle or to ensure the safety of the maintenance personnel, it is necessary to use a current collector isolation device to disconnect the faulty current collector from the power supply rail or contact network and keep it in a disconnected state.

[0003] However, existing metro vehicle current collector isolation devices, when experiencing faults such as grounding, short circuits, severe wear and breakage of carbon sliding plates, or mechanical jamming, may cause power supply system tripping, damage to the train's high-voltage system, or even affect other trains on the same line if not isolated in time. Although the isolation device can play an isolation role, it usually only plays a single role in the isolation process and is difficult to play a dual role. When the isolation device malfunctions, it cannot play an isolation role, resulting in poor isolation effect and poor safety. Therefore, we propose a metro vehicle current collector isolation device. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a current collector isolation device for subway vehicles, thereby solving the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a current collector isolation device for subway vehicles, comprising a current collector body, a fixing plate bolted to the front of the current collector body, an isolation telescopic rod installed on the top of the fixing plate, a current collector bracket movably connected to the inner side of the current collector body, a movable frame installed on the inner side of the current collector bracket, a connecting plate integrally formed at one end of the movable frame, a power receiving plate bolted to the top of the connecting plate, a movable rod bolted to the back of the connecting plate, a movable bracket rotatably connected to the inner side of the movable rod via a pin, an isolation plate bolted to one side of the movable bracket, a push sleeve bolted to the top of the movable frame, and a power receiving bracket installed on one side of the current collector bracket.

[0008] Preferably, a mounting plate is bolted to the back of the receiver body, and a maintenance cover is hinged to the top of the receiver body.

[0009] Preferably, a connecting shaft is installed through one side of the movable frame, and a return spring is installed on the outside of the connecting shaft.

[0010] Preferably, a power cord is bolted to one side of the power connection bracket, and a connector is movably connected to one end of the power cord.

[0011] Preferably, a controller is bolted to the bottom of the receiver body, and the outer surface of the controller is smooth.

[0012] Preferably, there are two reset springs, both of the same size, and both are located inside the receiver body.

[0013] (III) Beneficial Effects

[0014] This utility model provides a current collector isolation device for subway vehicles, which has the following beneficial effects:

[0015] This type of metro vehicle current collector isolation device, through the installation of an isolation telescopic rod, a movable rod, a movable support, and an isolation plate, allows the isolation telescopic rod to be activated when the current collector experiences faults such as grounding, short circuit, severe wear and breakage of the carbon sliding plate, or mechanical jamming. The extended telescopic rod then blocks the push sleeve, allowing the movable support to move downwards and separating the electrical plate from the electric rail. Subsequently, the worker pulls the isolation plate, causing the movable support to move via the movable rod, thus covering the electrical plate. When the telescopic rod automatically retracts due to a fault, and the return spring pulls the movable support back to its original position via the connecting shaft, the isolation plate prevents the electrical plate from being energized by the electric rail. This allows the metro vehicle current collector isolation device to provide dual isolation, thereby improving the isolation effect and safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the isolation telescopic rod of this utility model;

[0018] Figure 3 This is a partial structural schematic diagram of the main body of the current receiver of this utility model;

[0019] Figure 4 This is a partial structural schematic diagram of the isolation plate of this utility model.

[0020] In the diagram: 1. Current collector body; 2. Mounting plate; 3. Inspection cover plate; 4. Fixing plate; 5. Isolation telescopic rod; 6. Current collection bracket; 7. Power connection bracket; 8. Power cord; 9. Connector; 10. Return spring; 11. Movable frame; 12. Push sleeve; 13. Connecting plate; 14. Power connection plate; 15. Movable rod; 16. Movable bracket; 17. Isolation plate; 18. Controller; 19. Connecting shaft. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a current collector isolation device for subway vehicles, including a current collector body 1, a fixing plate 4 bolted to the front of the current collector body 1, an isolation telescopic rod 5 installed on the top of the fixing plate 4, a current collector support 6 movably connected to the inner side of the current collector body 1, a movable frame 11 installed on the inner side of the current collector support 6, a connecting plate 13 integrally formed at one end of the movable frame 11, a power receiving plate 14 bolted to the top of the connecting plate 13, a movable rod 15 bolted to the back of the connecting plate 13, a movable support 16 rotatably connected to the inner side of the movable rod 15 via a pin, an isolation plate 17 bolted to one side of the movable support 16, a push sleeve 12 bolted to the top of the movable frame 11, and a power receiving support 7 installed on one side of the current collector support 6.

[0023] Furthermore, a mounting plate 2 is bolted to the back of the current receiver body 1, and a maintenance cover 3 is hinged to the top of the current receiver body 1. The mounting plate 2 allows for installation with a subway vehicle, and the maintenance cover 3 allows for the display of the internal structure of the current receiver body 1, thus facilitating maintenance.

[0024] Furthermore, a connecting shaft 19 is installed through one side of the movable frame 11, and a return spring 10 is installed on the outside of the connecting shaft 19. The return spring 10 can pull the connecting shaft 19 to drive the current receiving bracket 6 to reset.

[0025] Furthermore, a power cord 8 is bolted to one side of the power connection bracket 7, and a connector 9 is movably connected to one end of the power cord 8, so that power can be transmitted to the receiver body 1 through the power cord 8.

[0026] Furthermore, a controller 18 is bolted to the bottom of the receiver body 1. The outer surface of the controller 18 is smooth, and the isolation telescopic rod 5 can be automatically started through the controller 18.

[0027] Furthermore, there are two reset springs 10. The two reset springs 10 are the same size and are located inside the current receiver body 1. The reset springs 10 can pull the connecting shaft 19 to reset the current receiver bracket 6.

[0028] Working Principle: After installation, first check the installation, fixation, and safety protection of this utility model. When using the current collector isolation device in a subway vehicle, if the current collector experiences grounding, short circuit, severe wear and breakage of the carbon sliding plate, mechanical jamming, or other faults, the isolation telescopic rod 5 can be activated. The extension of the isolation telescopic rod 5 will press against the push sleeve 12. At this time, the movable frame 11 can move downward through the current collector support 6, and the electrical plate 14 can be separated from the electric rail. Subsequently, the staff pulls the isolation plate 17, and the movable support 16 of the isolation plate 17 can move through the movable rod 15. At the same time, the isolation plate 17 can cover the electrical plate 14. When the isolation telescopic rod 5 malfunctions and automatically retracts, and the return spring 10 pulls the movable frame 11 to reset through the connecting shaft 19, the electrical plate 14 can be prevented from being energized by the electrical rail due to the action of the isolation plate 17. This completes the use of this utility model. This utility model has a simple structure and is safe and convenient to use.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metro vehicle current collector isolator device comprising a current collector body (1), characterized in that: A fixing plate (4) is bolted to the front of the current receiver body (1). An isolation telescopic rod (5) is installed on the top of the fixing plate (4). A current receiving bracket (6) is movably connected to the inner side of the current receiver body (1). A movable frame (11) is installed on the inner side of the current receiving bracket (6). A connecting plate (13) is integrally formed at one end of the movable frame (11). A power receiving plate (14) is bolted to the top of the connecting plate (13). A movable rod (15) is bolted to the back of the connecting plate (13). A movable bracket (16) is rotatably connected to the inner side of the movable rod (15) through a pin. An isolation plate (17) is bolted to one side of the movable bracket (16). A push sleeve (12) is bolted to the top of the movable frame (11). A power receiving bracket (7) is installed on one side of the current receiving bracket (6).

2. The pantograph isolation device of claim 1, wherein: The back of the receiver body (1) is bolted with a mounting plate (2), and the top of the receiver body (1) is hinged with a maintenance cover plate (3).

3. The current collector isolation device for subway vehicles according to claim 1, characterized in that: A connecting shaft (19) is installed through one side of the movable frame (11), and a return spring (10) is installed on the outside of the connecting shaft (19).

4. The current collector isolation device for subway vehicles according to claim 1, characterized in that: A power cord (8) is bolted to one side of the power connection bracket (7), and a connector (9) is movably connected to one end of the power cord (8).

5. The current collector isolation device for subway vehicles according to claim 1, characterized in that: The bottom of the receiver body (1) is bolted with a controller (18), and the outer surface of the controller (18) is smooth.

6. The current collector isolation device for subway vehicles according to claim 3, characterized in that: There are two reset springs (10), both of which are the same size and are located inside the receiver body (1).

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