Platform door structure with anti-pinch function

By introducing a moving mechanism and a cleaning mechanism into the platform screen doors, the problem of passengers being pinched by the doors has been solved, and anti-pinch and automatic cleaning functions have been achieved, improving safety and maintenance efficiency.

CN224676088UActive Publication Date: 2026-08-25JIANGSU YOUWEI RAIL TRANSIT TECH CO LTD
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Patent Information

Application Number
CN202521930018.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2026-08-25
Estimated Expiration
2035-09-09

AI Technical Summary

Technical Problem

Existing platform screen doors may pinch passengers when opening or closing, lacking anti-pinch features.

Method used

Design a platform door structure with a moving mechanism and a cleaning mechanism. The structure uses sensors to monitor passenger positions and controls a motor to drive a bidirectional threaded rod to move the frame to prevent pinching injuries. At the same time, a cleaning mechanism is set up to clean the glass using a worm gear structure.

Benefits of technology

It prevents passengers from getting trapped when the platform doors open or close, and can automatically clean dirt from the glass surface, improving passenger safety and equipment maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a platform door structure with anti -pinch function relates to rail transit equipment technical field. The utility model discloses a base, the base top fixedly connected with sensor, the base top is provided with moving mechanism, and the moving mechanism outer wall is provided with cleaning mechanism, and the moving mechanism includes motor, and the motor bottom output passes through the coupling fixedly connected with two -way screw rod, and the two -way screw rod outer surface is connected with the screw block of screw, and the base top fixedly connected with fixed block, the utility model discloses a moving mechanism is set up, and the motor is started to drive two -way screw rod and rotates, and when two -way screw rod rotates, and the screw block will follow two -way screw rod surface groove and move, now the connecting block also will move, when the connecting block moves, and the moving frame will move, among them, and the auxiliary block will slide on the outer surface of auxiliary rod, thereby to the location of screw block, when sensor monitors the person and will be pinched immediately stops the motor.
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Description

Technical Field

[0001] This utility model belongs to the field of rail transit equipment technology, and in particular relates to a platform door structure with anti-pinch function. Background Technology

[0002] Platform screen doors are a type of door system arranged longitudinally along the edge of a platform. They typically consist of multiple sliding doors, fixed doors, and related mechanical and electrical control components. They correspond to the positions of the train doors and can be precisely aligned and opened and closed synchronously when the train stops. Platform screen doors are generally used to separate tracks from platforms. Existing platform screen doors may pinch passengers when opening or closing. Therefore, we provide a platform screen door structure with anti-pinch function. Utility Model Content

[0003] The purpose of this utility model is to provide a platform door structure with anti-pinch function. By opening or closing the platform door through a movable structure, the problem that existing platform doors may pinch passengers when opening or closing is solved.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a platform door structure with anti-pinch function, including a base, a sensor fixedly connected to the top of the base, a moving mechanism provided on the top of the base, and a cleaning mechanism provided on the outer wall of the moving mechanism; The moving mechanism includes a motor, the bottom output end of which is fixedly connected to a bidirectional threaded rod via a coupling. A threaded block is threadedly connected to the outer surface of the bidirectional threaded rod. A fixing block is fixedly connected to the top of the base. A slide rail is fixedly connected to the top of the fixing block. A connecting block is fixedly connected to the top of the threaded block. There are two fixing blocks. An auxiliary rod is fixedly connected to one side of the two fixing blocks that are close to each other. An auxiliary block is slidably connected to the outer surface of the auxiliary rod. A moving frame is fixedly connected to the top of the connecting block. Glass is fixedly connected to the inner wall of the moving frame.

[0005] Furthermore, the bottom of the motor is fixedly connected to the top of the base, the inner wall of the fixing block is rotatably connected to the outer surface of the bidirectional threaded rod, the outer wall of the connecting block is fixedly connected to the outer wall of the auxiliary block, the number of auxiliary blocks is several, and the outer wall of the connecting block is slidably connected to the inner wall of the slide rail.

[0006] Furthermore, the cleaning mechanism includes a support frame, with a slider fixedly connected to the inner wall of the support frame and a rotating frame fixedly connected to the outer wall of the support frame.

[0007] Furthermore, a push rod is slidably connected to the top of the slider, the push rod has a toothed groove inside, and a worm gear is rotatably connected to the inner wall of the rotating frame.

[0008] Furthermore, a button is fixedly connected to the outer wall of the worm gear, and a rotating rod is rotatably connected to the inner wall of the movable frame.

[0009] Furthermore, a gear is fixedly connected to the outer wall of the rotating rod, a worm gear is fixedly connected to the outer wall of the rotating rod, and a cleaning plate is fixedly connected to the outer wall of the push rod.

[0010] Furthermore, the outer wall of the support frame is fixedly connected to the outer wall of the movable frame, the outer surface of the gear is meshed with the inner wall of the tooth groove, and there are several tooth grooves.

[0011] Furthermore, the outer surface of the worm gear meshes with the outer surface of the worm, and the outer wall of the cleaning plate contacts the outer wall of the glass.

[0012] This utility model has the following beneficial effects: 1. This utility model, by setting up a moving mechanism, starts a motor to drive a bidirectional threaded rod to rotate. When the bidirectional threaded rod rotates, the threaded block moves along the groove on the surface of the bidirectional threaded rod. At this time, the connecting block also moves. When the connecting block moves, the moving frame moves. The auxiliary block slides on the outer surface of the auxiliary rod, thereby limiting the threaded block. When the sensor detects that a person is about to be trapped, the motor will stop immediately. Its advantage is to isolate the platform and the track, and at the same time prevent passengers from being trapped by the platform door.

[0013] 2. This utility model features a cleaning mechanism. Rotating the button drives the worm gear to rotate. When the worm gear rotates, the worm wheel also rotates. At this time, the rotating rod rotates inside the moving frame. When the rotating rod rotates, the gear rotates and meshes with the tooth groove inside the push rod, thereby pushing the push rod to move. When the push rod moves, the cleaning plate moves. Its advantage is to clean the dirt generated on the glass surface.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the glass structure of this utility model; Figure 3 This is a schematic diagram of the slide rail structure of this utility model; Figure 4This is a schematic diagram of the push rod structure of this utility model; Figure 5 This is a schematic diagram of the button structure of this utility model.

[0017] The attached diagram lists the components represented by each number as follows: 11. Base; 12. Sensor; 1. Moving mechanism; 101. Motor; 102. Fixing block; 103. Bidirectional threaded rod; 104. Slide rail; 105. Threaded block; 106. Auxiliary block; 107. Auxiliary rod; 108. Connecting block; 109. Moving frame; 110. Glass; 2. Cleaning mechanism; 201. Support frame; 202. Supply slider; 203. Rotating frame; 204. Push rod; 205. Cleaning plate; 206. Gear; 207. Rotating rod; 208. Gear; 209. Worm gear; 210. Worm; 211. Button block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 As shown, this utility model is a platform door structure with anti-pinch function, including a base 11, a sensor 12 fixedly connected to the top of the base 11, a moving mechanism 1 set on the top of the base 11, a cleaning mechanism 2 set on the outer wall of the moving mechanism 1, the moving mechanism 1 including a motor 101, the motor 101 will stop immediately when the sensor 12 detects that a person is about to be pinched, the bottom output end of the motor 101 is fixedly connected to a bidirectional threaded rod 103 through a coupling, the bidirectional threaded rod 103 fixed at its output end is rotated by starting the motor 101, the outer surface of the bidirectional threaded rod 103 is threadedly connected to a threaded block 105, the top of the base 11 is fixedly connected to a fixing block 102, the top of the fixing block 102 is fixedly connected to a slide rail 104, the top of the threaded block 105 is fixedly connected to a connecting block 108, when the bidirectional threaded rod 103 rotates, the threaded block 105 threadedly connected to its outer surface will move along the groove on the surface of the bidirectional threaded rod 103, at this time the connecting block 108 fixedly connected to the top of the threaded block 105 will also move.

[0020] There are two fixed blocks 102. An auxiliary rod 107 is fixedly connected to one side of the two fixed blocks 102 that are close to each other. An auxiliary block 106 is slidably connected to the outer surface of the auxiliary rod 107. A movable frame 109 is fixedly connected to the top of the connecting block 108. A glass 110 is fixedly connected to the inner wall of the movable frame 109. The inside of the track can be observed through the glass 110. The bottom of the motor 101 is fixedly connected to the top of the base 11. The inner wall of the fixed block 102 is rotatably connected to the outer surface of the bidirectional threaded rod 103. The outer wall of the connecting block 108 is fixedly connected to the outer wall of the auxiliary block 106. There are several auxiliary blocks 106. The outer wall of the connecting block 108 is slidably connected to the inner wall of the slide rail 104. When the connecting block 108 moves, the movable frame 109 fixed at its top will move. The auxiliary block 106 fixed to the outer wall of the threaded block 105 will slide on the outer surface of the auxiliary rod 107, thereby limiting the threaded block 105.

[0021] Cleaning mechanism 2 includes a support frame 201, a slider 202 fixedly connected to the inner wall of the support frame 201, a rotating frame 203 fixedly connected to the outer wall of the support frame 201, a push rod 204 slidably connected to the top of the slider 202, the push rod 204 having a toothed groove 206 inside, a worm gear 210 rotatably connected to the inner wall of the rotating frame 203, a button 211 fixedly connected to the outer wall of the worm gear 210, rotating the worm gear 210 fixedly on its outer wall by rotating the button 211, a rotating rod 207 rotatably connected to the inner wall of the moving frame 109, a gear 208 fixedly connected to the outer wall of the rotating rod 207, and a worm wheel 209 fixedly connected to the outer wall of the rotating rod 207, the worm wheel 209 meshing with the outer surface of the worm gear 210 when it rotates. The worm gear 209 connected to the worm gear 209 will also rotate. At this time, the rotating rod 207 fixed on the outer wall of the worm gear 209 will rotate inside the moving frame 109. The cleaning plate 205 is fixedly connected to the outer wall of the push rod 204. The outer wall of the support frame 201 is fixedly connected to the outer wall of the moving frame 109. The outer surface of the gear 208 meshes with the inner wall of the tooth groove 206. There are several tooth grooves 206. The outer surface of the worm gear 209 meshes with the outer surface of the worm 210. The outer wall of the cleaning plate 205 contacts the outer wall of the glass 110. When the rotating rod 207 rotates, the gear 208 fixed on its outer surface will rotate. At this time, it meshes with the tooth groove 206 opened inside the push rod 204, thereby pushing the push rod 204 to move.

[0022] One specific application of this embodiment is: When the train enters the platform, the starter motor 101 drives the bidirectional threaded rod 103 fixed at its output end to rotate. When the bidirectional threaded rod 103 rotates, the threaded block 105 threaded to its outer surface moves along the groove on the surface of the bidirectional threaded rod 103. At the same time, the connecting block 108 fixedly connected to the top of the threaded block 105 also moves. When the connecting block 108 moves, the moving frame 109 fixed to its top moves. The auxiliary block 106 fixed to the outer wall of the threaded block 105 slides on the outer surface of the auxiliary rod 107, thereby limiting the threaded block 105. When the sensor 12 detects that a person is about to be trapped, the motor 101 will stop immediately. The advantage of this is that it isolates the platform from the track. To prevent passengers from being caught in the platform door, when the glass 110 becomes dirty, the rotating button 211 drives the worm gear 210 fixed on its outer wall to rotate. When the worm gear 210 rotates, the worm wheel 209 meshing with it on its outer surface also rotates. At this time, the rotating rod 207 fixed on the outer wall of the worm wheel 209 will rotate inside the moving frame 109. When the rotating rod 207 rotates, the gear 208 fixed on its outer surface will rotate. At this time, it meshes with the tooth groove 206 opened inside the push rod 204, thereby pushing the push rod 204 to move. When the push rod 204 moves, the cleaning plate 205 fixed at its end will move. Its advantage is to clean the dirt generated on the surface of the glass 110.

[0023] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A platform door structure with anti-pinch function, comprising a base (11), characterized in that: A sensor (12) is fixedly connected to the top of the base (11), a moving mechanism (1) is provided on the top of the base (11), and a cleaning mechanism (2) is provided on the outer wall of the moving mechanism (1). The moving mechanism (1) includes a motor (101), the bottom output end of the motor (101) is fixedly connected to a bidirectional threaded rod (103) via a coupling, the outer surface of the bidirectional threaded rod (103) is threadedly connected to a threaded block (105), the top of the base (11) is fixedly connected to a fixing block (102), the top of the fixing block (102) is fixedly connected to a slide rail (104), the top of the threaded block (105) is fixedly connected to a connecting block (108), there are two fixing blocks (102), the two fixing blocks (102) are fixedly connected to an auxiliary rod (107) on the side of the two fixing blocks (102) that are close to each other, the outer surface of the auxiliary rod (107) is slidably connected to an auxiliary block (106), the top of the connecting block (108) is fixedly connected to a moving frame (109), and the inner wall of the moving frame (109) is fixedly connected to a glass (110).

2. The platform door structure with anti-pinch function according to claim 1, characterized in that, The bottom of the motor (101) is fixedly connected to the top of the base (11), the inner wall of the fixing block (102) is rotatably connected to the outer surface of the bidirectional threaded rod (103), the outer wall of the connecting block (108) is fixedly connected to the outer wall of the auxiliary block (106), the number of auxiliary blocks (106) is several, and the outer wall of the connecting block (108) is slidably connected to the inner wall of the slide rail (104).

3. The platform door structure with anti-pinch function according to claim 1, characterized in that, The cleaning mechanism (2) includes a support frame (201), a slider (202) is fixedly connected to the inner wall of the support frame (201), and a rotating frame (203) is fixedly connected to the outer wall of the support frame (201).

4. A platform door structure with anti-pinch function according to claim 3, characterized in that, The top of the slider (202) is slidably connected to a push rod (204), the push rod (204) has a toothed groove (206) inside, and the inner wall of the rotating frame (203) is rotatably connected to a worm gear (210).

5. A platform door structure with anti-pinch function according to claim 4, characterized in that, A button (211) is fixedly connected to the outer wall of the worm (210), and a rotating rod (207) is rotatably connected to the inner wall of the movable frame (109).

6. A platform door structure with anti-pinch function according to claim 5, characterized in that, A gear (208) is fixedly connected to the outer wall of the rotating rod (207), a worm gear (209) is fixedly connected to the outer wall of the rotating rod (207), and a cleaning plate (205) is fixedly connected to the outer wall of the push rod (204).

7. A platform door structure with anti-pinch function according to claim 6, characterized in that, The outer wall of the support frame (201) is fixedly connected to the outer wall of the movable frame (109), and the outer surface of the gear (208) is meshed with the inner wall of the tooth groove (206). The number of tooth grooves (206) is several.

8. A platform door structure with anti-pinch function according to claim 7, characterized in that, The outer surface of the worm gear (209) meshes with the outer surface of the worm (210), and the outer wall of the cleaning plate (205) contacts the outer wall of the glass (110).