Subway shielding door

Abstract

The invention provides a metro shielding door which comprises fixed doors which are oppositely arranged on the two sides, shielding sliding doors are arranged on the fixed doors in a sliding mode respectively, and blocking plates used for blocking side passengers from entering a compartment are arranged at the opposite ends of the two shielding sliding doors. The device can effectively prevent abnormal passenger flow on the side from being squeezed into a compartment, and normal operation of a subway is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of subway screen door structures, and in particular to a subway screen door. Background Art

[0002] Platform screen doors (PSMs) are glass curtain walls that enclose the railway platform and the area where trains board and alight. Installed on the trackside edge of subway platforms, these doors separate the platform area from the trackside. Their primary purpose is to prevent accidents involving people falling onto the tracks, reduce energy consumption for the station's air conditioning and ventilation systems, and mitigate the effects of train noise and piston wind on the station. This provides passengers with a safe and comfortable waiting environment, avoids operational delays caused by platform accidents, improves rail transit service levels, and creates the necessary conditions for autonomous rail transit systems.

[0003] When people are getting on and off the subway, there are always a large number of passengers squeezing into the car from both sides. This situation prevents people getting off the train on both sides from getting off quickly, and people getting on the train are also hindered, affecting the efficiency and order of getting on and off the train. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present invention aims to provide a subway platform screen door that can prevent local traffic from entering the subway car beside the door.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A subway screen door comprises two oppositely arranged fixed doors, wherein the fixed doors are respectively provided with a screen sliding door for sliding, and a blocking plate for blocking passengers from entering the carriage is provided at the opposite ends of the two screen sliding doors.

[0007] Preferably, it further comprises a stable bottom plate, wherein the fixed doors are provided on both sides of the top of the stable bottom plate, and a rotatable blocking plate is provided at the opposite end of the two shielding sliding doors;

[0008] When the shielding sliding door retracts toward the fixed door, the blocking plate flips outward;

[0009] When the shielding sliding door moves toward the other shielding sliding door and the two shielding sliding doors come into contact, the outward-turned blocking plate rotates back to its initial position.

[0010] Preferably, the two blocking plates are arranged in an interlaced manner; rectangular slots cooperating with the blocking plates are respectively provided at opposite ends of the two shielding sliding doors, and the two rectangular slots are arranged in an interlaced manner.

[0011] Preferably, a storage frame is fixedly provided on the rear side of the fixed door, and telescopic slots are provided on opposite sides of the two storage frames; a guide slide seat is fixedly provided on the bottom of the inner cavity of the storage frame, and a guide slide groove for use with the guide slide seat is provided at the bottom of the shielding sliding door, and the guide slide groove is slidably connected to the guide slide seat; the shielding sliding door is slidably provided in the storage frame and moves in the telescopic slot.

[0012] Preferably, the brushless motor is further included, wherein the brushless motor is connected to the shielding sliding door through a first transmission mechanism, and the brushless motor is connected to the blocking plate through a second transmission mechanism;

[0013] When the brushless motor starts to rotate in the forward direction, the shielding sliding door is driven to retract toward the fixed door, and the blocking plate is turned outward;

[0014] When the brushless motor is started to rotate in the reverse direction, the shielding sliding door is driven to move toward the other shielding sliding door, and after the two shielding sliding doors are in relative contact, the outward-turned blocking plate rotates back to the initial position.

[0015] Preferably, the brushless motor is further included, wherein the brushless motor is connected to the shielding sliding door through a first transmission mechanism, and the brushless motor is connected to the blocking plate through a second transmission mechanism;

[0016] When the brushless motor starts to rotate in the forward direction, the shield sliding door is driven to be retracted into the storage frame, and the blocking plate is turned outward;

[0017] When the brushless motor is started to rotate in the reverse direction, the shielding sliding door is driven to extend out of the storage frame, and after the two shielding sliding doors are in relative contact, the outward-turned blocking plate is rotated back to the initial position.

[0018] Preferably, the brushless motor is fixedly connected to the lower portion of the rear portion of the inner cavity of the storage frame, and the output shaft of the brushless motor is fixedly connected to a worm;

[0019] The first transmission mechanism includes rotating rods rotatably connected on both sides of the rear part of the inner cavity of the storage frame, the two rotating rods are connected by a pulley and a belt transmission, the front end of the rotating rod is fixedly connected to a worm gear; the worm gear is meshed with the worm; the surface of the belt is fixedly connected to a synchronous cylinder, and the synchronous cylinder is fixedly connected to the shielding sliding door.

[0020] Preferably, the brushless motor is fixedly connected to the lower rear portion of the storage frame inner cavity through a fixed door, and the output shaft of the brushless motor is fixedly connected to a worm through a coupling;

[0021] The second transmission mechanism includes:

[0022] Two opposite sides of the shielding sliding door are provided with turnover grooves, a vertical rotating rod is rotatably arranged between the top and the bottom of the inner cavity of the turnover groove, the surface of the vertical rotating rod is fixedly connected with the blocking plate, and the lower part of the surface of the vertical rotating rod is fixedly connected with a gear.

[0023] The bottom of the inner cavity of the turnover groove is provided with a slidingly installed thrust rod, one end of the thrust rod is fixedly connected with an arc tooth ring engaged with the gear, the surface of the thrust rod is fixedly connected with a pressure receiving piece, and the surface of the thrust rod is sleeved with a first spring matched with the pressure receiving piece.

[0024] The end of the worm away from the brushless motor is fixedly connected with a threaded rod, the surface of the threaded rod is threadedly connected with a threaded cylinder, the rear part of the inner cavity of the storage frame is fixedly connected with a sliding groove plate through a fixed door, the inner sliding groove plate is slidingly installed with a sliding plate, the front part of the sliding plate is fixedly connected with the threaded cylinder, the bottom of the threaded cylinder is fixedly connected with a toothed plate matched with the gear, the end of the toothed plate away from the threaded cylinder is slidingly installed with a rebound rod matched with the pressure receiving piece through an opening, and the surface of the rebound rod is sleeved with a second spring.

[0025] The beneficial effects of the present application are:

[0026] The subway shielding door provided by the present application is provided with a shielding sliding door on the inner side of the storage frame, a turnover groove is formed at one end of the shielding sliding door, and a blocking plate is installed in the turnover groove. The shielding sliding door is used in combination with a gear and a toothed plate. The arrangement of these structures can drive the blocking plate to rotate by 90 degrees after the shielding sliding door is retracted into the storage frame, so that the two blocking plates form a straight passage, effectively preventing external personnel from squeezing into the car from both sides, and improving the efficiency and order of transfer.

[0027] The thrust rod is installed in the inner side of the turnover groove to drive the arc tooth ring to move, and the rebound rod is used in combination. The arrangement of these structures can move the arc tooth ring without limiting the gear before the blocking plate is turned over, and the blocking plate can be fixed by the meshing of the arc tooth ring and the gear after the blocking plate is turned over and reset, so as to ensure the stability after closing.

[0028] The brushless motor is used to drive the storage frame. Compared with the traditional driving equipment, the driving efficiency of the brushless motor is higher, and it is not easy to wear and tear, which can effectively improve the service life of the equipment and reduce the failure rate, meeting the current use. BRIEF DESCRIPTION OF DRAWINGS

[0029] The present application will be further described in detail below according to the drawings and examples.

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 A schematic diagram of the storage frame, shielding sliding door and blocking plate structure of the present invention;

[0032] Figure 3 It is a cross-sectional view of the storage frame structure of the present invention;

[0033] Figure 4 A schematic diagram of the vertical rotating rod, blocking plate and gear structure of the present invention;

[0034] Figure 5 A schematic diagram of the shielding sliding door, the flip groove and the rectangular slot structure of the present invention;

[0035] Figure 6 For the present invention Figure 5 A partial enlarged view of point A in the middle;

[0036] Figure 7 Schematic diagram of the guide groove and synchronous cylinder structure of the present invention;

[0037] Figure 8 A schematic diagram of the internal structure of the storage frame of the present invention;

[0038] Figure 9 Schematic diagram of the structure of the sliding plate, threaded barrel and tooth plate of the present invention;

[0039] Figure 10 This is a usage state diagram of the present invention.

[0040] in:

[0041] 1-stable base plate; 2-storage frame; 3-telescopic slot; 4-guide slide seat; 5-shielded sliding door; 6-guide slide groove; 7-rotating rod; 8-pulley; 9-belt; 10-worm gear; 11-brushless motor; 12-worm; 13-flip groove; 14-vertical rotation rod; 15-blocking plate; 16-gear; 17-rectangular slot; 18-thrust rod; 19-arc gear ring; 20-first spring; 21-pressure plate; 22-threaded rod; 23-slide plate; 24-sliding plate; 25-threaded cylinder; 26-tooth plate; 27-rebound rod; 28-second spring; 29-synchronizing cylinder. DETAILED DESCRIPTION

[0042] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention are described in further detail below. Obviously, the described embodiments are only a portion of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0043] Example 1

[0044] The subway screen door described in the present invention includes a stable base plate, fixed doors are provided on both sides of the top of the stable base plate, the fixed doors are cooperated with sliding screen sliding doors, and blocking plates 15 are provided at opposite ends of the two screen sliding doors to prevent passengers from entering the car from the side.

[0045] Specifically, the blocking plate 15 can form a non-180° angle with the shielding sliding door. When a subway train enters the station and the doors and shielding sliding door open, passengers are instructed to board and alight facing the doors. This ensures a normal passenger flow. If a passenger cuts in line from the side, this is detrimental. Therefore, the blocking plate can effectively prevent passengers from cutting in from the side. In one embodiment, the blocking plate 15 forms a 90° angle with the shielding sliding door.

[0046] Example 2

[0047] See Figures 1 to 10 As shown, the subway screen door according to the present invention comprises a stable base plate 1, with fixed doors provided on both sides of the top of the stable base plate 1, and a storage frame 2 fixedly connected to the rear side of the fixed door. The rear side of the fixed door according to the present invention refers to the side of the fixed door close to the subway track.

[0048] The two storage frames 2 are hollow frames aligned with the fixed door, and the frames are surrounded by metal plates.

[0049] The fixed doors on both sides are symmetrically arranged, and the two storage frames are also symmetrically arranged.

[0050] Telescopic slots 3 are formed on opposite sides of the two storage frames 2 .

[0051] A shielding sliding door 5 is provided for sliding inside the storage frame 2 . The shielding sliding door 5 can be moved to the outside or retracted into the storage frame 2 through the telescopic slot 3 .

[0052] The shielding sliding door 5 slides in the storage frame 2, which is specifically achieved through the following structure: a guide slide seat 4 is fixedly connected to the bottom of the inner cavity of the storage frame 2, and a guide slide groove 6 is provided at the bottom of the shielding sliding door 5 for use with the guide slide seat 4, and the guide slide groove 6 is slidably connected to the guide slide seat 4.

[0053] When the two shielding sliding doors 5 move to contact each other, the two shielding sliding doors 5 form a closed state; when the two shielding sliding doors 5 are retracted into the storage frame 2, they form an open state.

[0054] A rotatable blocking plate 15 is provided at the opposite end of the two shielding sliding doors 5, and the blocking plate 15 is parallel to the shielding sliding door 5; the specific setting method is: a flip groove 13 is opened on the opposite side of the two shielding sliding doors 5, and a vertical rotation rod 14 is rotatably provided between the top and bottom of the inner cavity of the flip groove 13, and the blocking plate 15 is fixedly connected to the surface of the vertical rotation rod 14.

[0055] When the shielding sliding door 5 is retracted into the storage frame 2, the blocking plate 15 is rotated outward to form an angle other than 180° with the shielding sliding door 5, specifically 90°. The "outward rotation" mentioned here refers to the rotation of the two blocking plates 15 toward the platform position. When the blocking plate 15 is perpendicular to the shielding sliding door 5, most of the blocking plate 15 is located at the platform position to achieve the function of blocking the intrusion of people from the side. Specifically, that is, when the subway enters the station, the subway doors and the shielding sliding door 5 are opened, when normal passengers are instructed to get on and off facing the doors, it is ensured that such a way of getting on and off can allow the normal flow of passengers. If a passenger cuts in line from the side at this time, it is disadvantageous. Therefore, the blocking plate can effectively block passengers entering from the side at this time.

[0056] The brushless motor 11 is also included. The brushless motor 11 is fixedly connected to the lower rear portion of the inner cavity of the storage frame 2 through a fixed door, and the output shaft of the brushless motor 11 is fixedly connected to a worm 12 through a coupling. Furthermore, the brushless motor 11 is transmission-connected to the shielding sliding door 5 through a first transmission mechanism, and is transmission-connected to the blocking plate 15 through a second transmission mechanism. When the brushless motor 11 is started in the forward direction, it drives the shielding sliding door 5 to retract into the storage frame 2, and the blocking plate 15 is tilted outward to an angle perpendicular to the shielding sliding door 5. When the brushless motor 11 is started in the reverse direction, it drives the shielding sliding door 5 out of the storage frame 2. When the two shielding sliding doors come into contact, the tilted blocking plate 15 rotates back to its initial position.

[0057] The first transmission mechanism includes rotating rods 7 on both sides of the rear part of the inner cavity of the storage frame 2, which are rotatably connected through bearings. The two rotating rods 7 are connected by a pulley 8 and a belt 9. The front end of the rotating rod 7 is fixedly connected to a worm gear 10; the worm gear 10 is engaged with the worm 12; the surface of the belt 9 is fixedly connected to a synchronous cylinder 29, and the synchronous cylinder 29 is fixedly connected to the shielding sliding door 5.

[0058] The second transmission mechanism includes: a reversing groove 13 is defined on opposite sides of each of the two shielding sliding doors 5. A vertical reversing rod 14 is rotatably connected between the top and bottom of the reversing groove 13 via a bearing. The vertical reversing rod 14 is connected via a damping bearing to prevent easy rotation. A blocking plate 15 is fixedly connected to the surface of the vertical reversing rod 14, and a gear 16 is fixedly connected to the lower portion of the surface of the vertical reversing rod 14.

[0059] The inner side of the turnover groove 13 is provided with a rectangular slot 17 matched with the blocking plate; the two blocking plates 15 are staggered, and the two rectangular slots 17 are staggered. When the shielding sliding door moves to the direction of the other shielding sliding door, and the two shielding sliding doors are in contact, the blocking plate rotates back to the initial position, and the blocking plate on one shielding sliding door is inserted into the rectangular slot of the other shielding sliding door.

[0060] As another embodiment, the rectangular slot 17 is not provided, and the two blocking plates 15 can be staggered on the non-shielding sliding door movement track. When the shielding sliding door is closed, the blocking plate 15 can form a state parallel to the shielding sliding door and located outside the shielding sliding door. At this time, the blocking plate 15 can play its role and does not hinder the closing and opening of the shielding sliding door.

[0061] A thrust rod 18 is slidably installed at the bottom of the inner cavity of the turnover groove 13 through a support, one end of the thrust rod 18 is fixedly connected with an arc tooth ring 19 engaged with the gear 16, the surface of the thrust rod 18 is fixedly connected with a pressure receiving piece 21, and the surface of the thrust rod 18 is sleeved with a first spring 20 matched with the pressure receiving piece 21;

[0062] The end of the worm 12 away from the brushless motor 11 is fixedly connected with a threaded rod 22, the surface of the threaded rod 22 is threadedly connected with a threaded cylinder 25; the rear part of the inner cavity of the storage frame 2 is fixedly connected with a sliding groove plate 23 through a fixed door; the inner side of the sliding groove plate 23 is slidably installed with a sliding plate 24, the front part of the sliding plate 24 is fixedly connected with the threaded cylinder 25, the bottom of the threaded cylinder 25 is fixedly connected with a toothed plate 26 matched with the gear 16 through a support, the end of the toothed plate 26 away from the threaded cylinder 25 is slidably installed with a rebound rod 27 matched with the pressure receiving piece 21 through an opening, and the surface of the rebound rod 27 is sleeved with a second spring 28.

[0063] The use method of the subway shielding door, specifically includes the following steps:

[0064] S1, in use, the two shielding sliding doors 5 are extended from the inner side of the storage frame 2, and the two shielding sliding doors 5 are in contact, and the two blocking plates 15 are also inserted into the rectangular slots 17, respectively, and the channel between the two storage frames 2 is in a closed state;

[0065] S2. When the channel needs to be opened, the brushless motor 11 is started to drive the worm 12 to rotate. When the worm 12 rotates, it will drive the belt 9 to transmit the power through the meshing with the worm wheel 10 and under the action of the rotating rod 7 and the pulley 8. When the belt 9 moves, it will use the synchronous cylinder 29 to pull the shielding sliding door 5 under the limit of the guide slide seat 4 and the guide slide groove 6, so that the two shielding sliding doors 5 are retracted to the inside of the storage frame 2. When the worm 12 rotates, it will also drive the threaded rod 22 to rotate together. When the threaded rod 22 rotates, the threaded cylinder 25 is limited by the sliding plate 24 and the slide groove plate 23. The toothed plate 26 is pushed downward to move together. When the shielding sliding door 5 is about to be completely retracted into the storage frame 2, one end of the rebound rod 27 extends out of the telescopic slot 3 and presses the pressure-bearing plate 21 at the same time. After the pressure-bearing plate 21 is pressed, the arc toothed ring 19 moves backward and separates from the gear 16 under the sliding action of the thrust rod 18. Then the toothed plate 26 contacts and meshes with the gear 16 and drives the gear 16 and the blocking plate 15 to rotate 90 degrees, so that the blocking plate 15 flips to the front of the storage frame 2. The blocking plates 15 on both sides form a channel, which can effectively prevent people from squeezing in from both sides.

[0066] S3. When closing is required, the brushless motor 11 starts in reverse to drive the worm 12 and the slide plate 23 to rotate in the opposite direction. At this time, the tooth plate 26 retracts and uses the engagement with the gear 16 to drive the blocking plate 15 to flip into a horizontal state. After the tooth plate 26 is separated from the gear 16, the rebound rod 27 will no longer press the pressure plate 21. At this time, the arc tooth ring 19 will re-engage with the gear 16 under the elastic force of the first spring 20 to fix the blocking plate 15. After the two shielding sliding doors 5 are fully contacted, the two blocking plates 15 are also inserted into the corresponding rectangular slots 17 to close the channel.

[0067] The working principle of the subway platform screen door of the present invention is as follows:

[0068] When the subway platform door driven by the brushless motor 11 is in the initial closed state, the two platform sliding doors 5 extend from the inner side of the storage frame 2 and contact each other, and the staggered blocking plates 15 are respectively inserted into the corresponding rectangular slots 17. At this time, the passage between the storage frames 2 is in a closed state.

[0069] When the passage needs to be opened, the brushless motor 11 is activated, and its output shaft drives the worm 12 to rotate. The worm 12 meshes with the worm wheel 10, rotating the rotating rod 7. The pulley 8 on the rotating rod 7 transmits power through the belt 9, and the synchronous cylinder 29 on the surface of the belt 9 pulls the shielding sliding door 5. Under the restraining action of the guide slide 4 and the guide groove 6, the two shielding sliding doors 5 retract synchronously into the storage frame 2. Simultaneously, the worm 12 rotates the threaded rod 22, and the threaded cylinder 25, restrained by the sliding plate 24 and the groove plate 23, pushes the toothed plate 26. When the shielding sliding door 5 is about to fully retract into the storage frame 2, one end of the rebound rod 27 extends out of the telescopic slot 3 and presses against the pressure plate 21. Under the force applied to the pressure plate 21, the thrust rod 18 causes the arc tooth ring 19 to move backward, separating it from the gear 16. Subsequently, the tooth plate 26 contacts and meshes with the gear 16, driving the gear 16 and the blocking plate 15 to rotate 90 degrees, so that the blocking plate 15 is flipped to the front of the storage frame 2. The blocking plates 15 on both sides form a channel, which can effectively prevent people from squeezing in from both sides.

[0070] When the passage needs to be closed, the brushless motor 11 starts in reverse, driving the worm 12 and the threaded rod 22 to rotate in the opposite direction. At this time, the toothed plate 26 retracts and, by meshing with the gear 16, drives the blocking plate 15 to flip into a horizontal position. After the toothed plate 26 separates from the gear 16, the rebound rod 27 no longer presses against the pressure plate 21. The arc toothed ring 19, under the elastic force of the first spring 20, re-engages with the gear 16 to secure the blocking plate 15. As the brushless motor 11 continues to operate, the two shielding sliding doors 5 are fully in contact. At this time, the two blocking plates 15 are also inserted into the inner sides of the corresponding rectangular slots 17, thus closing the passage.

[0071] The whole process realizes the extension and retraction of the shielding sliding door 5 and the flipping of the blocking plate 15 through the forward and reverse rotation of the brushless motor 11, thereby ensuring the safe and stable operation of the subway shield door.

[0072] The present invention uses the above-mentioned structure to drive the shielding sliding door and the blocking plate to move through the brushless motor and the transmission mechanism, driving the shielding sliding door to be retracted into the storage frame, and the blocking plate to be rotated to an angle perpendicular to the shielding sliding door. At this time, most of the blocking plate is located at the platform position to achieve the function of blocking the side flow of people from squeezing in.

[0073] In the description herein, reference to terms such as "one embodiment" or "example" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0074] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0075] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will readily conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A subway platform door, characterized in that: The vehicle comprises two relatively fixed doors, each of which is provided with a shielding sliding door for sliding movement. At one opposite end of the two shielding sliding doors, a blocking plate for blocking passengers on the side from entering the vehicle compartment is provided.

2. The subway platform screen door according to claim 1, characterized in that: It also includes a stable bottom plate, the fixed doors are provided on both sides of the top of the stable bottom plate, and a rotatable blocking plate is provided at the opposite end of the two shielding sliding doors; When the shielding sliding door retracts toward the fixed door, the blocking plate flips outward; When the shielding sliding door moves toward the other shielding sliding door and the two shielding sliding doors come into contact, the outward-turned blocking plate rotates back to its initial position.

3. The subway platform screen door according to claim 2, characterized in that: The two blocking plates are arranged in an interlaced manner; the opposite ends of the two shielding sliding doors are respectively provided with rectangular slots that match the blocking plates, and the two rectangular slots are arranged in an interlaced manner.

4. The subway platform screen door according to claim 2 or 3, characterized in that: A storage frame is fixedly provided on the rear side of the fixed door, and telescopic slots are provided on opposite sides of the two storage frames; a guide slide seat is fixedly provided on the bottom of the inner cavity of the storage frame, and a guide slide groove is provided at the bottom of the shielding sliding door for use with the guide slide seat, and the guide slide groove is slidably connected to the guide slide seat; the shielding sliding door is slidably provided in the storage frame and moves in the telescopic slots.

5. The subway platform screen door according to claim 2, characterized in that: It also includes a brushless motor, the brushless motor is connected to the shielding sliding door through a first transmission mechanism, and the brushless motor is connected to the blocking plate through a second transmission mechanism; When the brushless motor starts to rotate in the forward direction, the shielding sliding door is driven to retract toward the fixed door, and the blocking plate is turned outward; When the brushless motor is started to rotate in the reverse direction, the shielding sliding door is driven to move toward the other shielding sliding door, and after the two shielding sliding doors are in relative contact, the outward-turned blocking plate rotates back to the initial position.

6. The subway platform screen door according to claim 4, characterized in that: It also includes a brushless motor, the brushless motor is connected to the shielding sliding door through a first transmission mechanism, and the brushless motor is connected to the blocking plate through a second transmission mechanism; When the brushless motor starts to rotate in the forward direction, the shield sliding door is driven to be retracted into the storage frame, and the blocking plate is turned outward; When the brushless motor is started to rotate in the reverse direction, the shielding sliding door is driven to extend out of the storage frame, and after the two shielding sliding doors are in relative contact, the outward-turned blocking plate is rotated back to the initial position.

7. The subway platform screen door according to claim 6, characterized in that: The brushless motor is fixedly connected to the lower part of the rear portion of the inner cavity of the storage frame, and the output shaft of the brushless motor is fixedly connected to a worm; The first transmission mechanism includes rotating rods rotatably connected on both sides of the rear part of the inner cavity of the storage frame, the two rotating rods are connected by a pulley and a belt transmission, the front end of the rotating rod is fixedly connected to a worm gear; the worm gear is meshed with the worm; the surface of the belt is fixedly connected to a synchronous cylinder, and the synchronous cylinder is fixedly connected to the shielding sliding door.

8. The subway platform screen door according to claim 6, characterized in that: The brushless motor is fixedly connected to the lower rear portion of the storage frame through a fixed door, and the output shaft of the brushless motor is fixedly connected to a worm through a coupling; The second transmission mechanism includes: A flip groove is provided on opposite sides of the two shielding sliding doors, a vertical rotating rod is rotatably provided between the top and bottom of the inner cavity of the flip groove, the surface of the vertical rotating rod is fixedly connected to the blocking plate, and the lower part of the surface of the vertical rotating rod is fixedly connected to a gear; the two blocking plates are staggered; a rectangular slot is provided on one side of the interior of the flip groove to match the blocking plate, and the rectangular slots on both sides are staggered; A slidably mounted thrust rod is provided at the bottom of the inner cavity of the flip groove, one end of the thrust rod is fixedly connected to an arc tooth ring meshing with the gear, a pressure plate is fixedly connected to the surface of the thrust rod, and a first spring is sleeved on the surface of the thrust rod for use in conjunction with the pressure plate; The end of the worm gear away from the brushless motor is fixedly connected to a threaded rod, and the surface of the threaded rod is threadedly connected to a threaded cylinder; the rear part of the inner cavity of the storage frame is fixedly connected to a slide plate through a fixed door; a sliding plate is slidably installed inside the slide plate, and the front part of the sliding plate is fixedly connected to the threaded cylinder, and the bottom of the threaded cylinder is fixedly connected to a tooth plate used in conjunction with a gear; the end of the tooth plate away from the threaded cylinder is slidably installed with a rebound rod used in conjunction with a pressure plate through an opening, and the surface of the rebound rod is provided with a second spring.

Images