Subway platform door emergency opening and closing mechanism for rail transit

Abstract

The utility model relates to the technical field of platform doors, in particular to a subway platform door emergency opening and closing mechanism for rail transit, which comprises a platform door, an opening and closing driving device, a motor, a transmission mechanism and a door lock mechanism, the motor drives the platform door to move through the transmission mechanism, and the door lock mechanism adopts an electromagnetic lock. The electromagnetic lock is arranged at the position of a frame of the platform door, the transmission mechanism comprises a transmission gear and a transmission rack, the transmission gear is fixedly installed at the bottom of the platform door, the transmission gear is installed at the output end of the motor, and the transmission gear is meshed with the transmission rack. The platform door can be quickly opened under the emergency condition, the transmission mechanism adopts the transmission gear and the transmission rack to be matched for transmission, meanwhile, a hand catching groove is formed in the frame of the platform door, so that passengers can conveniently push the platform door open manually under the emergency condition, and the self-rescue convenience of the passengers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of platform doors, in particular to an emergency opening and closing mechanism for subway platform doors used in rail transportation. Background Art

[0002] With the rapid development of urban rail transit systems, subways, due to their efficiency and convenience, have become a vital mode of transportation for modern urbanites. However, passenger safety remains a primary concern in daily subway operations. In particular, how to quickly and effectively open platform doors and ensure the safe evacuation of passengers in emergencies such as fires and earthquakes is a crucial issue in rail transit system design.

[0003] In emergencies, subway platform doors must be able to open quickly to provide passengers with a safe escape route. However, traditional platform door opening methods, such as those relying on manual operation or mechanical devices, often suffer from operational inconvenience and slow response times. These issues are particularly prominent in emergencies and can seriously impact the speed and safety of passenger evacuation. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides an emergency opening and closing mechanism for subway platform doors used in rail transportation.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: The present invention provides an emergency opening and closing mechanism for subway platform doors for rail transit, comprising the following components:

[0008] Platform doors, used for daily passenger entry and exit and to separate the track from the platform area;

[0009] The opening and closing drive device includes a motor, a transmission mechanism, and a door lock mechanism. The motor drives the platform door to move through the transmission mechanism. The door lock mechanism uses an electromagnetic lock, which is installed on the frame of the platform door. The transmission mechanism includes a transmission gear and a transmission rack. The transmission rack is fixedly installed at the bottom of the platform door. The transmission gear is installed at the output end of the motor and meshes with the transmission gear.

[0010] A control device is provided next to the platform door and includes a controller, an emergency switch and an automatic sensing device, wherein the motor, the emergency switch and the automatic sensing device are electrically connected to the controller;

[0011] The backup power supply adopts a lithium battery, and the backup power supply is electrically connected to the controller and the motor.

[0012] Preferably, the automatic sensing device adopts an infrared light sensor.

[0013] Further preferably, a limit frame is provided on the front side of the platform door, a magnetic sensor is provided on the rear side of the limit frame, the magnetic sensor is electrically connected to the controller, and the electromagnetic lock is provided on the front side of the limit frame.

[0014] Again preferably, a warning device is further included, the warning device includes a warning light and an alarm, the warning light and the alarm are arranged above the platform door, and the warning device is electrically connected to the controller.

[0015] Preferably, a hand buckle slot is provided on the frame of the platform door.

[0016] Further preferably, the warning device is activated within 5-8 seconds before the platform door is closed or opened.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides an emergency opening and closing mechanism for subway platform doors used in rail transit, which has the following beneficial effects:

[0019] Fast response and efficient operation:

[0020] Through the coordinated use of motors, transmission mechanisms and electromagnetic locks, platform doors can be opened quickly in an emergency, ensuring timely evacuation of passengers, greatly improving the efficiency and safety of emergency response.

[0021] Intelligence and Automation:

[0022] The automatic sensing device (such as infrared light sensor) can automatically detect obstacles near the platform door. Once a passenger or object is detected, it will automatically trigger the platform door to open without manual operation, thus improving the intelligence level of the system.

[0023] Multiple security guarantees:

[0024] The design of the limit frame and magnetic sensor ensures that the position of the platform door can be accurately controlled during the closing process.

[0025] The use of electromagnetic locks makes the platform doors more secure when locked, effectively isolating the track from the platform area.

[0026] The backup power supply ensures that the platform door can still be opened normally when the main power fails, providing double safety protection.

[0027] User-Friendliness:

[0028] The hand buckle slots set on the platform door frame allow passengers to easily push open the platform door manually in an emergency, improving the convenience of passengers' self-rescue.

[0029] Warning devices (warning lights and sirens) are activated before the platform doors are closed or opened, reminding passengers to pay attention to safety through sound and light, enhancing the user experience.

[0030] System stability and reliability:

[0031] The lithium battery used as a backup power source has a long service life and stable performance, ensuring the reliability of the system in emergency situations.

[0032] The entire system has been carefully designed and rigorously tested, and has high stability and reliability, able to meet the high requirements of rail transit operations.

[0033] In summary, the emergency opening and closing mechanism of subway platform doors used in rail transit has beneficial effects such as rapid response, efficient operation, intelligence and automation, multiple safety guarantees, user-friendliness, and system stability and reliability, providing a strong guarantee for the safe operation of rail transit. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the inner structure of the platform door of the utility model;

[0035] Figure 2 This is a schematic diagram of the outer structure of the platform door of the utility model;

[0036] Figure 3 This is a schematic diagram of the closed structure of two platform doors of the utility model;

[0037] In the figure: 1. Platform door; 2. Motor; 3. Transmission gear; 4. Transmission rack; 5. Controller; 6. Emergency switch; 7. Siren; 8. Warning light; 9. Limit frame; 10. Electromagnetic lock; 11. Automatic sensing device; 12. Magnetic sensor; 13. Hand buckle slot. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] See also Figure 1-3 The utility model provides an emergency opening and closing mechanism for subway platform doors used in rail transit, comprising the following components:

[0040] Platform door 1, used for daily passenger entry and exit and to separate the track from the platform area;

[0041] The opening and closing drive device includes a motor 2, a transmission mechanism, and a door lock mechanism. The motor 2 drives the platform door 1 to move through the transmission mechanism. The door lock mechanism uses an electromagnetic lock 10, which is arranged at the frame of the platform door 1. The transmission mechanism includes a transmission gear 3 and a transmission rack 4. The transmission rack 4 is fixedly mounted on the bottom of the platform door 1. The transmission gear 3 is mounted on the output end of the motor 2, and the transmission gear 3 is meshed with the transmission rack 4.

[0042] The control device is arranged beside the platform door 1 and includes a controller 5, an emergency switch 6 and an automatic sensing device 11. The motor 2, the emergency switch 6 and the automatic sensing device 11 are electrically connected to the controller 5.

[0043] The backup power supply adopts a lithium battery, and the backup power supply is electrically connected to the controller 5 and the motor 2.

[0044] Summary of the working principle of the utility model technical solution

[0045] The emergency opening and closing mechanism for subway platform doors 1 is an integrated system designed to ensure rapid and effective opening of platform doors 1 in emergency situations, ensuring safe passenger evacuation. This system integrates an opening and closing drive, an automatic sensing device 11, an alarm system, and a backup power supply. Through the coordinated management of a controller 5, the system enables the emergency opening and closing of platform doors 1.

[0046] 1. System composition

[0047] The emergency opening and closing mechanism of the subway platform door 1 mainly consists of the platform door 1, an opening and closing drive device, a control device, a backup power supply, and a warning device. These components work together to ensure that the platform door 1 can be opened quickly and safely in an emergency.

[0048] 2. Working Principle of Each Component

[0049] Platform Door 1

[0050] Main functions: used for daily passenger entry and exit and isolation of track and platform areas.

[0051] Structural features: A hand buckle slot 13 is provided on the frame of the platform door 1 to facilitate passengers to manually push open the platform door 1 in an emergency.

[0052] Opening and closing drive device

[0053] Composition: includes motor 2, transmission mechanism and door lock mechanism.

[0054] Working Principle: Motor 2 drives platform door 1 through a transmission mechanism (drive gear 3 and rack gear 4). Rack gear 4 is fixed to the bottom of platform door 1. The output of motor 2 is connected to drive gear 3. The meshing of the gear and rack gear enables platform door 1 to open and close. The door lock mechanism uses an electromagnetic lock 10, mounted on the frame of platform door 1, which is locked and unlocked by commands from controller 5.

[0055] Control device

[0056] Composition: includes a controller 5, an emergency switch 6 and an automatic sensing device 11.

[0057] Working Principle: Controller 5 receives signals from the emergency switch 6 and automatic sensing device 11, and controls the operation of the opening and closing drive and warning device. The emergency switch 6 allows passengers or staff to manually trigger the opening of platform door 1 in an emergency. Automatic sensing device 11 uses an infrared sensor. When it detects an obstacle near platform door 1, it sends a signal to controller 5, triggering the opening of platform door 1. Controller 5 can be connected to the main server via wired or wireless communication, and a control program is input to controller 5 to control the opening time of platform door 1.

[0058] backup power supply

[0059] Type: lithium battery.

[0060] Working principle: When the mains power is interrupted, the backup power supply provides power to the control device and the opening and closing drive device to ensure that the platform door 1 can be opened normally in an emergency.

[0061] warning device

[0062] Composition: includes warning light 8 and siren 7.

[0063] Working principle: Warning light 8 is installed above platform door 1, and siren 7 is installed beside platform door 1 and electrically connected to controller 5. Within 5-8 seconds before platform door 1 closes or opens, the warning device is activated to remind passengers to pay attention to safety through sound and light.

[0064] Limit frame 9 and magnetic sensor 12

[0065] Installation position: The limiting frame 9 is located at the front side of the platform door 1 , and the magnetic sensor 12 is arranged at the rear side of the limiting frame 9 .

[0066] Working principle: When the platform door 1 moves to a specific position (such as fully closed or opened to a preset safe position), the magnetic sensor 12 will detect the change in the magnetic field and send a signal to the controller 5. The controller 5 will determine the position status of the platform door 1 based on this and ensure that the platform door 1 moves within a safe range.

[0067] 3. Summary

[0068] The subway platform door 1 emergency opening and closing mechanism integrates a drive unit, a control unit, a backup power supply, and a warning device, enabling rapid and safe opening of the platform door 1 in an emergency. Furthermore, the automatic sensing device 11 and warning device enhance the system's intelligence and safety.

[0069] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An emergency opening and closing mechanism for subway platform doors used in rail transit, characterized in that: Includes the following components: Platform doors (1), used for daily passenger entry and exit and to separate the track from the platform area; An opening and closing drive device comprises a motor (2), a transmission mechanism and a door lock mechanism, wherein the motor (2) drives the platform door (1) to move via the transmission mechanism, the door lock mechanism adopts an electromagnetic lock (10), and the electromagnetic lock (10) is arranged at the frame of the platform door (1), the transmission mechanism comprises a transmission gear (3) and a transmission rack (4), the transmission rack (4) is fixedly mounted on the bottom of the platform door (1), the transmission gear (3) is mounted on the output end of the motor (2), and the transmission gear (3) is meshed with the transmission rack (4); A control device is arranged beside the platform door (1), comprising a controller (5), an emergency switch (6) and an automatic sensing device (11), wherein the motor (2), the emergency switch (6) and the automatic sensing device (11) are electrically connected to the controller (5); The backup power supply adopts a lithium battery, and the backup power supply is electrically connected to the controller (5) and the motor (2).

2. The emergency opening and closing mechanism for subway platform doors used in rail transit according to claim 1, characterized in that: The automatic sensing device (11) adopts an infrared light sensor.

3. The emergency opening and closing mechanism for subway platform doors used in rail transit according to claim 2, characterized in that: A limit frame (9) is provided on the front side of the platform door (1), a magnetic sensor (12) is provided on the rear side of the limit frame (9), the magnetic sensor (12) is electrically connected to the controller (5), and the electromagnetic lock (10) is arranged on the front side of the limit frame (9).

4. The emergency opening and closing mechanism for subway platform doors used in rail transit according to claim 3, characterized in that: It also includes a warning device, which includes a warning light (8) and an alarm (7). The warning light (8) and the alarm (7) are arranged above the platform door (1). The warning device is electrically connected to the controller (5).

5. The emergency opening and closing mechanism for subway platform doors used in rail transit according to claim 4, characterized in that: A hand buckle slot (13) is provided on the frame of the platform door (1).

6. The emergency opening and closing mechanism for subway platform doors used in rail transit according to claim 5, characterized in that: The warning device is activated within 5-8 seconds before the platform door (1) is closed or opened.

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