Rail transit platform door equipotential regulation and control device

Abstract

The utility model relates to the electrical technical field of rail transit, in particular to an equipotential regulation and control device for a rail transit platform door, which comprises a platform, a structural base station, a platform door, a steel rail and a vehicle, an equipotential switching box is arranged on the structural base station, and a door body equipotential line is arranged between the equipotential switching box and the platform door. According to the utility model, the defects in the prior art are overcome, the equipotential change-over switch can be operated through the switch module when a vehicle enters a station and is stopped stably, the door body rail connecting line and the first contactor are in a connected state through the controller, and the first contactor and the door body rail connecting line are adjusted to be in a disconnected state after a vehicle door is closed; meanwhile, when a door body grounding wire and a door body equipotential wire are adjusted to be in a connected state, the insulation performance of an equipotential system can be continuously monitored through the monitoring module, and after analysis and judgment of the controller, the industrial personal computer which implements equipotential switching and configuration can achieve recording, storage and historical data query.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit electricity, in particular to an equipotential regulation device for a rail transit platform door. Background Technique

[0002] In the design of the urban rail transit platform door system, because there is a potential difference between the rail / vehicle and the platform door, in order to avoid the voltage difference between the rail / vehicle and the platform door and prevent the step voltage from being generated during the process of passengers entering the vehicle, which may cause potential safety hazards, generally, the rail and the platform door are connected by a cable to achieve equipotentiality;

[0003] According to the investigation, since the opening of the subways in various cities in China, the phenomenon of platform door sparking has occurred many times; for the above problems, there are two opinions: one is to maintain the equipotential line connection between the platform door and the rail; the other is to simply not connect the equipotential line and adopt the scheme of adding an insulating film on the outer surface of the platform door structure to prevent the formation of a voltage difference by passengers touching; the connection of the equipotential line cannot solve the sparking problem, but completely not connecting the equipotential line and only relying on the insulating film often causes the insulating film to be damaged due to passengers' reasons. No matter which scheme is adopted, there are certain defects and risks;

[0004] In order to solve the above problems of the prior art, for this reason, an equipotential regulation device for a rail transit platform door is proposed. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides an equipotential regulation device for a rail transit platform door, which overcomes the deficiencies of the prior art and solves the problems mentioned in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solution: an equipotential regulation device for a rail transit platform door, including a platform, a structural base, a platform door, a rail and a vehicle. An equipotential switching box is configured and installed on the structural base. A door body equipotential line is arranged between the equipotential switching box and the platform door, a door body grounding wire is arranged between the equipotential switching box and the structural base, a door body connecting rail line is arranged between the equipotential switching box and the rail. A platform door equipment room, a monitoring module and a switching module are sequentially configured and installed on the platform;

[0007] The platform door equipment room is composed of an industrial control computer and a power supply.

[0008] When the vehicle enters the station and stops stably, the equipotential switching switch can be operated to connect the door rail line with the contactor 1 through the controller. After the vehicle door is closed, the connection between the contactor 1 and the door rail line is adjusted to be disconnected. At the same time, the connection between the door ground wire and the door equipotential wire can be adjusted to be connected. Through the monitoring module, the insulation performance of the equipotential system can be continuously monitored. After analysis and judgment by the controller, equipotential switching is implemented. The configured industrial computer can record, store, and query historical data.

[0009] As a preferred technical solution of the present utility model, an insulating layer is provided on the upper surface of the platform, and terminal blocks are configured and installed on both the structural base and the rail.

[0010] The insulating layer can achieve an insulating effect to avoid step voltage during the process of passengers getting on and off. The terminal blocks on the structural base and the rail can facilitate the connection and use with the door ground wire and the door rail line.

[0011] As a preferred technical solution of the present utility model, a contactor 1 and a contactor 2 are respectively configured and installed inside the equipotential switching box, and both the contactor 1 and the contactor 2 are connected to the platform door through the door equipotential wire.

[0012] The contactor 1 and the contactor 2 can realize the on-off of the main circuit through the control circuit, thereby regulating the connection state of the door equipotential wire.

[0013] As a preferred technical solution of the present utility model, the end of the door rail line far from the rail is connected to the contactor 1, and the end of the door ground wire far from the structural base is connected to the contactor 2.

[0014] As a preferred technical solution of the present utility model, the monitoring module is composed of a controller, an equipotential insulation monitoring module, and a current monitoring module. The controller is composed of a logic controller, the equipotential insulation monitoring module is composed of an insulation monitor, and the current monitoring module is composed of a current sensor.

[0015] Through the controller, equipotential insulation continuous monitoring signals and door opening / closing commands can be received, switching instructions can be issued, and switching between the equipotential connecting to the rail and the system ground can be performed.

[0016] As a preferred technical solution of the present utility model, the switch module includes a platform door command switch, a manual / automatic switching switch, an equipotential switching switch, and a status indicator light.

[0017] As a preferred technical solution of the present utility model, the equipotential switching box, the industrial computer, the power supply, the monitoring module, and the switch module are all electrically connected.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] When the vehicle enters the station and stops stably, the equal - potential switching switch can be operated through the switch module. Through the controller, the door body connection line is connected to the first contactor. After the vehicle door is closed, the connection between the first contactor and the door body connection line is adjusted to the disconnected state. At the same time, the connection between the door body grounding line and the door body equal - potential line can be adjusted to the connected state. Through the monitoring module, the insulation performance of the equal - potential system can be continuously monitored. After analysis and judgment by the controller, equal - potential switching is implemented. The configured industrial computer can record, store, and query historical data. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the equal - potential structure of the present utility model;

[0021] Figure 2 Of the present utility model Figure 1 Partial schematic diagram at position A in

[0022] Figure 3 It is a schematic diagram of the principle of the present utility model.

[0023] In the figure: 1, platform; 2, structural base; 201, door body grounding line; 3, insulating layer; 4, platform door; 5, rail; 501, door body connection line; 6, vehicle; 7, equal - potential switching box; 8, first contactor; 9, second contactor; 10, door body equal - potential line; 11, platform door equipment room; 12, industrial computer; 13, power supply; 14, monitoring module; 15, switch module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-3, A device for regulating the equipotential of a rail transit platform door, including a platform 1, a structural base 2, a platform door 4, a rail 5 and a vehicle 6. An equipotential switching box 7 is configured and installed on the structural base 2. A door equipotential line 10 is provided between the equipotential switching box 7 and the platform door 4. A door grounding wire 201 is provided between the equipotential switching box 7 and the structural base 2. A door connection line 501 is provided between the equipotential switching box 7 and the rail 5. A platform door equipment room 11, a monitoring module 14 and a switching module 15 are sequentially configured and installed on the platform 1. The platform door equipment room 11 is composed of an industrial control computer 12 and a power supply 13. The equipotential switching box 7, the industrial control computer 12, the power supply 13, the monitoring module 14 and the switching module 15 are all electrically connected. When the vehicle 6 enters the station and stops stably, the equipotential switching switch can be operated to connect the door connection line 501 with the contactor 8 in a connected state. After the vehicle 6 closes the door, the connection between the contactor 8 and the door connection line 501 is adjusted to a disconnected state. At the same time, the connection between the door grounding wire 201 and the door equipotential line 10 can be adjusted to a connected state. Through the monitoring module 14, the insulation performance of the equipotential system can be continuously monitored. After analysis and judgment by the controller, equipotential switching is implemented. The configured industrial control computer 12 can record, store and query historical data.

[0026] Specifically, an insulating layer 3 is provided on the upper surface of the platform 1. Wiring terminals are configured and installed on both the structural base 2 and the rail 5. The insulating layer 3 can play an insulating effect to avoid step voltage during the process of passengers getting on and off. The wiring terminals on the structural base 2 and the rail 5 can facilitate the connection and use with the door grounding wire 201 and the door connection line 501.

[0027] Specifically, a contactor 8 and a contactor 9 are respectively configured and installed inside the equipotential switching box 7. Both the contactor 8 and the contactor 9 are connected to the platform door 4 through the door equipotential line 10. The contactor 8 and the contactor 9 can realize the on-off of the main circuit through the control circuit, thereby regulating the connection state of the door equipotential line 10.

[0028] Specifically, one end of the door connection line 501 away from the rail 5 is connected to the contactor 8, and one end of the door grounding wire 201 away from the structural base 2 is connected to the contactor 9. The monitoring module 14 is composed of a controller, an equipotential insulation monitoring module and a current monitoring module. The controller is composed of a logic controller. The equipotential insulation monitoring module is composed of an insulation monitor. The current monitoring module is composed of a current sensor. Through the controller, equipotential insulation continuous monitoring signals and door opening / closing commands can be received, and switching instructions can be issued to switch the equipotential connection to the rail and the system ground.

[0029] Specifically, the switch module 15 includes a platform door command switch, a manual / automatic changeover switch, an equipotential changeover switch, and a status indicator light. Through controlling the platform door command switch, the manual / automatic changeover switch, and the equipotential changeover switch, convenient operation and regulation can be achieved. At the same time, the status indicator light can visually display the switch status.

[0030] Working principle: When the vehicle 6 enters the station and stops stably, the equipotential changeover switch can be operated to connect the door body connecting wire 501 and the contactor 8 through the controller. After the vehicle 6 closes its doors, the connection between the contactor 8 and the door body connecting wire 501 is adjusted to the disconnected state. At the same time, the door body grounding wire 201 and the door body equipotential wire 10 can be adjusted to the connected state. Through the monitoring module 14, the insulation performance of the equipotential system can be continuously monitored. After analysis and judgment by the controller, equipotential switching is implemented. The configured industrial control computer 12 can record, store, and query historical data.

[0031] Finally, it should be noted that: In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0032] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rail transit platform door and other potential control device, comprising a platform (1), a structural base (2), a platform door (4), a rail (5) and a vehicle (6), characterized in that: An equipotential switching box (7) is installed on the structural base (2), a door body equipotential line (10) is provided between the equipotential switching box (7) and the platform door (4), a door body grounding line (201) is provided between the equipotential switching box (7) and the structural base (2), a door body track connection line (501) is provided between the equipotential switching box (7) and the rail (5), and a platform door equipment room (11), a monitoring module (14) and a switch module (15) are installed in sequence on the platform (1); The platform door equipment room (11) is composed of an industrial computer (12) and a power supply (13).

2. The potential control device for rail transit platform doors according to claim 1, characterized in that: The upper surface of the platform (1) is provided with an insulating layer (3), and the structural base (2) and the rails (5) are both equipped with connection terminals.

3. The potential control device for rail transit platform doors according to claim 1, characterized in that: The equipotential switching box (7) is provided with a contactor 1 (8) and a contactor 2 (9) installed therein, and both the contactor 1 (8) and the contactor 2 (9) are connected to the platform door (4) through a door body equipotential line (10).

4. The potential control device for rail transit platform doors according to claim 1, characterized in that: The door body track connection line (501) is connected to contactor one (8) at one end away from the steel rail (5), and the door body grounding line (201) is connected to contactor two (9) at one end away from the structural base (2).

5. The potential control device for rail transit platform doors according to claim 1, characterized in that: The monitoring module (14) is composed of a controller, an equipotential insulation monitoring module and a current monitoring module.

6. The potential control device for rail transit platform doors according to claim 5, characterized in that: The controller is composed of a logic controller, the equipotential insulation monitoring module is composed of an insulation monitor, and the current monitoring module is composed of a current sensor.

7. The rail transit platform door equipotential control device according to claim 1, characterized in that: The switch module (15) comprises a platform door command switch, a manual / automatic switching switch, an equipotential switching switch, and a status indicator light.

8. The rail transit platform door equipotential control device according to claim 1, characterized in that: The equipotential switching box (7), the industrial computer (12), the power supply (13), the monitoring module (14), and the switch module (15) are all electrically connected.

Images