Early warning device for rail transit platform screen door

By integrating components such as infrared detection, distance sensors, and pressure detection into the platform screen doors of rail transit, real-time monitoring and alarm prompts of passenger positions are achieved, solving the problem of the platform screen doors' inability to provide early warnings and improving the safety of rail transit.

CN223546299UActive Publication Date: 2025-11-14CHANGZHOU QINGYIN ELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202423219911.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-11-14
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

The existing platform screen doors on rail transit systems cannot effectively warn passengers of being stranded before the train departs, posing a safety hazard of forcing their way onto the train.

Method used

Design an early warning system comprising an early warning device body, an infrared detection probe, a distance sensor, a pressure detection strip, and a blocking structure. The system monitors passenger position through the infrared detection probe, detects the door's closed state through the distance sensor, senses passengers standing through the pressure detection strip, and prevents passengers from rushing through, thus achieving multiple safety detections and alarm prompts.

Benefits of technology

The safety of the platform screen doors in rail transit has been improved. Multiple detection methods ensure that passengers leave before the train departs, avoiding the risk of passengers rushing onto the train and enhancing the safety of the waiting environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rail transit, in particular to an early warning device for a rail transit platform screen door, which comprises fixed door bodies positioned on the left side and the right side, movable door bodies which extend to the outer sides from the interiors of the fixed door bodies and are connected with the fixed door bodies in a sliding manner, and side plates which are positioned on the fixed door bodies on the left side and the right side and are close to one sides of the movable door bodies, early warning device bodies are fixedly installed at the outer ends of the upper portions of the side plates located on the left side and the right side, an alarm device is further connected to one side of each early warning device body, and blocking structures are further installed on the lower portions of the inner sides of the side plates located on the left side and the right side. According to the utility model, whether a passenger enters a limited area between the two side plates or not can be monitored through the infrared detection probes, and meanwhile, when the passenger stands on the pressure detection strip, an alarm prompt is given through the alarm device, so that the aim of early warning is fulfilled, and the safety of the whole system is improved.
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Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, specifically to an early warning device for rail transit platform screen doors. Background Technology

[0002] The use of urban rail transit has greatly alleviated urban traffic congestion and plays a vital role in people's daily lives and travel. Subway platform screen doors are an indispensable safety measure in rail transit. Their main purpose is to isolate the public area of ​​the station platform from the track area, reduce the impact of train noise on waiting passengers, prevent people from falling onto the tracks and causing accidents, and provide passengers with a more comfortable and safer waiting environment.

[0003] Due to the need for normal train operation, there is a certain gap between the platform screen doors and the train. Before the platform screen doors and train doors are closed, it is necessary to confirm whether there are still passengers remaining near the platform screen doors. Only after confirming that there are no people or objects in the gap can the platform screen doors be closed and the train operation be started. However, nowadays, during the platform screen door warning process, the platform screen doors and the rail transit doors are not closed for a period of time. During this period, there may be a risk of passengers forcibly boarding the train.

[0004] Therefore, it is necessary to design an early warning device for platform screen doors in rail transit to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide an early warning device for platform screen doors in rail transit, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A warning device for rail transit platform screen doors includes fixed door bodies on the left and right sides, a movable door body slidably connected to the inside of the fixed door bodies extending to the outside, a side plate installed on the fixed door bodies on the left and right sides and on the side closer to the movable door body, a warning device body fixedly installed on the upper outer end of the side plates on the left and right sides, an alarm device connected to one side of the warning device body, and a blocking structure installed on the lower inner side of the side plates on the left and right sides.

[0008] As a preferred embodiment of this utility model, the warning device body is internally equipped with a control terminal and a processor, and the control terminal and the alarm device are electrically connected.

[0009] As a preferred embodiment of this utility model, a U-shaped mounting base is fixedly connected to the upper rear side of the warning device body, and a locking bolt is threaded onto the U-shaped mounting base and locked to the side plate by the locking bolt.

[0010] As a preferred embodiment of this utility model, an infrared detection probe is also provided on the side of the U-shaped mounting base away from the body of the early warning device. The infrared detection probe on one side of the U-shaped mounting base is an infrared receiving module, and the infrared detection probe on the other side of the U-shaped mounting base is an infrared transmitting module.

[0011] As a preferred embodiment of this utility model, a distance sensor is provided on the upper inner side of each of the two movable doors on the left and right, and a sensor contact is provided in the middle.

[0012] As a preferred embodiment of this utility model, the blocking structure includes a connecting shaft fixedly installed on the left and right side plates, an intercepting rod rotatably connected inside the connecting shaft, and a rotating motor connected to the input shaft end of the connecting shaft.

[0013] As a preferred embodiment of this utility model, a floor installed on the ground is provided on the lower front side of the fixed door and the movable door, and a pressure detection strip is provided in the middle position of the floor.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, an early warning device for rail transit platform screen doors is provided. During the operation of the platform screen doors, when a train is about to depart, the alarm device sounds an alarm. At the same time, a rotating motor drives the internal shaft of the connecting shaft to rotate, which in turn drives the interception bar to rotate, thereby intercepting the train and preventing passengers from rushing through. Furthermore, infrared detection probes and pressure detection strips can be used to detect whether passengers have entered the restricted area, further improving safety. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the movable door of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the main body and rear mounting structure of the early warning device of this utility model.

[0020] In the diagram: 1. Fixed door; 2. Moving door; 3. Side panel; 4. Warning device body; 5. Alarm device; 6. Blocking structure; 61. Connecting shaft; 62. Interception bar; 63. Rotating motor; 7. U-shaped mounting base; 8. Locking bolt; 9. Infrared detection probe; 10. Sensing contact piece; 11. Pressure detection strip; 12. Distance sensor; 13. Floor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to 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] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] For examples, please refer to Figure 1-4 This utility model provides a technical solution:

[0026] A warning device for rail transit platform screen doors includes fixed door bodies 1 located on the left and right sides. A movable door body 2 is slidably connected to the inside of the fixed door body 1 and to the outside. A side plate 3 is installed on the fixed door body 1 on the left and right sides and on the side closer to the movable door body 2. A warning device body 4 is fixedly installed on the upper outer end of the side plate 3 on the left and right sides. An alarm device 5 is also connected to one side of the warning device body 4. A blocking structure 6 is also installed on the lower inner side of the side plate 3 on the left and right sides.

[0027] The warning device body 4 is equipped with a control terminal and a processor, and the control terminal and the alarm device 5 are electrically connected. The processor is used to process the warning data, and the control terminal controls the operation of other devices.

[0028] The warning device body 4 is fixedly connected to a U-shaped mounting base 7 on the upper rear side. The U-shaped mounting base 7 is connected to a locking bolt 8 by a thread and is locked to the side plate 3 by the locking bolt 8. The warning device body 4 is installed by inserting the U-shaped mounting base 7 into the side plate 3 and locking it with the locking bolt 8.

[0029] An infrared detection probe 9 is also provided on the side of the U-shaped mounting base 7 that is below and away from the main body of the warning device 4. The infrared detection probe 9 on one side of the U-shaped mounting base 7 is an infrared receiving module, and the infrared detection probe 9 on the other side of the U-shaped mounting base 7 is an infrared transmitting module. The infrared detection probe 9 can monitor whether a passenger has entered the restricted area between the two side panels 3.

[0030] Distance sensors 12 are installed on the upper inner sides of the two movable door bodies 2 on the left and right, and a sensor contact piece 10 is installed in the middle. The sensor contact piece 10 and the distance sensors 12 can be used to monitor the movable door body 2 in real time to ensure that it is closed tightly.

[0031] The blocking structure 6 includes a connecting shaft 61 fixedly installed on the left and right side plates 3. An intercepting rod 62 is rotatably connected inside the connecting shaft 61. A rotating motor 63 is connected to the input shaft end of the connecting shaft 61. The rotating motor 63 drives the internal shaft of the connecting shaft 61 to rotate, thereby driving the intercepting rod 62 to rotate, so as to achieve interception and prevent passengers from rushing through.

[0032] The fixed door 1 and the movable door 2 are provided with a floor 13 installed on the ground below the front side, and a pressure detection strip 11 is provided in the middle of the floor 13; when a passenger stands on the pressure detection strip 11, the alarm device 5 will provide an alarm prompt, which can also serve as a warning.

[0033] The working process of this utility model is as follows: When using the early warning device for rail transit platform screen doors, firstly, the U-shaped mounting base 7 is inserted into the side plate 3 and locked in place with the locking bolt 8 to install the main body 4 of the early warning device; then, the inductive contact piece 10 and the distance sensor 12 can monitor in real time whether the moving door 2 is closed tightly. After the moving door 2 is detected to be closed tightly, the infrared detection probe 9 can be used to detect whether a passenger has entered the restricted area between the two side plates 3. At the same time, when a passenger stands on the pressure detection strip 11, the alarm device 5 will sound an alarm to achieve the purpose of early warning and improve the safety of the entire system.

[0034] 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 warning device for platform screen doors in rail transit, comprising fixed door bodies (1) located on the left and right sides, characterized in that: The fixed door (1) extends from the inside to the outside and is slidably connected to a movable door (2). A side plate (3) is installed on the fixed door (1) on the left and right sides and on the side closer to the movable door (2). A warning device body (4) is fixedly installed on the upper outer end of the side plate (3) on the left and right sides. An alarm device (5) is also connected to one side of the warning device body (4). A blocking structure (6) is also installed on the lower inner side of the side plate (3) on the left and right sides.

2. The early warning device for platform screen doors in rail transit according to claim 1, characterized in that: The warning device body (4) is equipped with a control terminal and a processor, and the control terminal and the alarm device (5) are electrically connected.

3. The early warning device for platform screen doors in rail transit according to claim 1, characterized in that: A U-shaped mounting base (7) is fixedly connected to the upper rear side of the main body (4) of the early warning device. A locking bolt (8) is threadedly connected to the U-shaped mounting base (7), and it is locked and fixed to the side plate (3) by the locking bolt (8).

4. The early warning device for platform screen doors in rail transit according to claim 3, characterized in that: An infrared detection probe (9) is also provided on the side of the U-shaped mounting base (7) that is below and away from the body (4) of the early warning device. The infrared detection probe (9) on one side of the U-shaped mounting base (7) is an infrared receiving module, and the infrared detection probe (9) on the other side of the U-shaped mounting base (7) is an infrared transmitting module.

5. The early warning device for platform screen doors in rail transit according to claim 1, characterized in that: Distance sensors (12) are provided on the upper inner sides of the two movable door bodies (2) on the left and right, and a sensor contact piece (10) is provided in the middle.

6. A warning device for platform screen doors in rail transit according to claim 1, characterized in that: The blocking structure (6) includes a connecting shaft (61) fixedly installed on the left and right side plates (3). An intercepting rod (62) is rotatably connected inside the connecting shaft (61). A rotating motor (63) is connected to the input shaft end of the connecting shaft (61).

7. A warning device for platform screen doors in rail transit according to claim 1, characterized in that: The fixed door (1) and the movable door (2) are provided with a floor (13) installed on the ground below the front side, and a pressure detection strip (11) is provided in the middle position of the floor (13).