Train screen door assembly
By combining fixed and monitoring devices, the safety and stability issues of train platform screen doors during high-speed passage have been resolved, resulting in a safe and comfortable passenger transport environment and reducing equipment maintenance costs and noise interference.
Patent Information
- Application Number
- CN202522477647.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-21
AI Technical Summary
Existing train platform screen door assemblies are susceptible to wind pressure when trains pass at high speeds, which can cause the doors to open unexpectedly, posing a safety hazard. In addition, they generate significant vibration and noise, affecting passenger comfort and equipment lifespan.
The second fixing part of the fixing device cooperates with the first fixing part of the door to ensure that the door is firmly fixed when closed. Combined with the return spring and guide surface, it prevents the door from being accidentally opened due to wind pressure, vibration or human error. At the same time, a monitoring device is set up to monitor the train gap and wind pressure to achieve safe and stable door operation.
It effectively prevents the door from opening accidentally, avoids passengers or items falling into the track, reduces vibration and noise, improves passenger safety and comfort, extends equipment life, and reduces maintenance costs.
Smart Images
Figure CN224943598U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of train platform screen door technology, and more specifically, to train platform screen door components. Background Technology
[0002] In today's era of booming urban rail transit, train platform screen doors, as core equipment for ensuring passenger safety, optimizing the platform environment, and improving operational efficiency, directly affect the overall operational quality of the rail transit system. However, existing train platform screen door components have significant limitations in several key aspects, urgently requiring innovative breakthroughs. For example, when a train passes through the platform without stopping, the wind pressure from the high-speed train can have a significant impact on the platform screen doors, even causing collisions between the doors and the train, leading to potential dangers. Utility Model Content
[0003] The purpose of this utility model is to provide a train platform screen door assembly to improve the above-mentioned problems. To achieve the above objective, the technical solution adopted by this utility model is as follows:
[0004] This application provides a train platform screen door assembly, comprising: a door body slidably connected to a protective device of the platform, the door body sliding to selectively open or close the passage of the protective device, and a first fixing part provided at the top and / or bottom of the door body; and a fixing device connected to the protective device and / or concrete structure of the platform, the fixing device being provided with a movable second fixing part that cooperates with the first fixing part in the track width direction, the second fixing part being adapted to cooperate with the first fixing part when the door body closes the passage.
[0005] According to some embodiments of the present invention, one of the first fixing part and the second fixing part is a fixing block, and the other of the first fixing part and the second fixing part is a fixing groove. The fixing block is received in the fixing groove to fix the door body.
[0006] According to some embodiments of the present invention, the fixing device includes a mounting base, which is connected to the protective device and / or concrete structure of the platform. The mounting base is movably connected to a fixing block, and the door body is provided with a fixing groove.
[0007] According to some embodiments of the present invention, the door body is provided with a connecting block extending toward the track, and a fixing plate is provided at the free end of the connecting block. The door body, the connecting block and the fixing plate together define the fixing groove.
[0008] According to some embodiments of the present invention, in the track extension direction, the fixing block is provided with a first guide surface on both sides, and the connecting block is provided with a second guide surface on both sides, and the first guide surface and the second guide surface guide each other.
[0009] According to some embodiments of the present invention, the fixing device further includes a return spring, which is disposed between the mounting base and the fixing block, and the two ends of the return spring are respectively connected to the mounting base and the fixing block.
[0010] According to some embodiments of the present invention, the concrete structure is provided with an installation groove that opens toward the track, and the fixing device further includes an installation pipe, which is disposed in the installation groove and has an adjustment opening that opens toward the track. The mounting seat is movably disposed in the installation pipe and is adapted to move along the axial direction of the installation pipe.
[0011] According to some embodiments of the present invention, the inner peripheral wall of the mounting tube is provided with a first thread, the mounting base includes a first split part and a second split part, the first split part is rotatably connected to the reset spring, the outer peripheral wall of the first split part is provided with a second thread that mates with the first thread, the second split part is located on the side of the first split part away from the reset spring, and the diameter of the second split part is smaller than the diameter of the first split part.
[0012] According to some embodiments of the present invention, the door body is constructed in two parts, and the door body corresponds to at least one of the fixing devices.
[0013] According to some embodiments of the present invention, a monitoring device is also included, which is connected to the protective device of the gate and / or platform. The monitoring device is adapted to monitor the gap between the train and the gate, the wind pressure on the gate, and the train speed.
[0014] The beneficial effects of this utility model are as follows:
[0015] This utility model utilizes the cooperation between the second fixing part of the fixing device and the first fixing part of the door to securely fix the door when it is closed. This effectively prevents the door from accidentally opening due to factors such as wind pressure, vibration, or human error caused by train operation. It also prevents passengers or items from falling onto the tracks, ensuring the safety of train operation and passenger lives. Furthermore, it reduces the vibration of the door during train operation, lowers the noise generated by the door vibration, improves passenger comfort, extends the service life of the door, and reduces maintenance costs.
[0016] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram showing the fit between the fixing block and the fixing groove of this utility model;
[0019] Figure 2 This is a schematic diagram showing the cooperation between the two fixing blocks and the two fixing slots of this utility model;
[0020] Figure 3 This is a schematic diagram showing the fit between the mounting pipe and the mounting base of this utility model.
[0021] Marked in the image:
[0022] 11. Fixing block; 111. First guide surface; 12. Mounting base; 121. First split part; 122. Second split part; 13. Return spring; 14. Connecting plate; 15. Mounting tube; 16. Limiting tube; 20. Fixing groove; 21. Connecting block; 22. Fixing plate. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0025] like Figures 1-3As shown, this embodiment provides a train platform screen door assembly, including: a door body and a fixing device. The door body is slidably connected to the protective device of the platform. The door body slides to selectively open or close the passage of the protective device. A first fixing part is provided at the top and / or bottom of the door body. The fixing device is connected to the protective device and / or concrete structure of the platform. The fixing device is provided with a movable second fixing part that cooperates with the first fixing part in the track width direction. The second fixing part is adapted to cooperate with the first fixing part when the door body closes the passage.
[0026] In some embodiments, the door is slidably connected to the platform protection device, and the door can move relative to the platform protection device to selectively open or close the passage of the platform protection device. When the door slides to a specific position to open the passage, passengers can smoothly enter and exit the train; when the door slides to the closed position, it can isolate the platform from the track area and ensure passenger safety.
[0027] The top and / or bottom of the door are provided with a first fixing part. This can be either the top of the door, the bottom of the door, or both the top and bottom of the door; there is no limitation here. For example, in a ground-level platform, the first fixing part can be provided only at the bottom of the door; in an underground platform, the first fixing part can be provided at both the top and / or bottom of the door.
[0028] It is worth mentioning that the fixing device is connected to the platform's protective devices and / or concrete structure to ensure that the fixing device can be securely installed on the relevant platform structure. The fixing device is equipped with a movable second fixing part, which can cooperate with the first fixing part in the track width direction. When the door closes the passage, the second fixing part is adapted to cooperate with the first fixing part to firmly fix the door in the closed position, preventing the door from accidentally opening under the influence of wind pressure, vibration, and other factors generated by train operation, thereby ensuring the safety of train operation and passengers.
[0029] Understandably, the drive unit can move the door along the sliding connection structure with the platform's protective device. When the passage needs to be opened, the drive unit slides the door to one side, exposing the passage; when the passage needs to be closed, the drive unit slides the door in the opposite direction until it completely blocks the passage. When the door slides to the closed position, the second fixing part on the fixing device moves and engages with the first fixing part on the door in the track width direction. It is worth mentioning that the engagement between the first and second fixing parts can be through locking, embedding, or other methods to firmly fix the door in the closed state and prevent the door from moving.
[0030] According to the present invention, the train platform screen door assembly, through the cooperation of the second fixing part of the fixing device and the first fixing part of the door body, can firmly fix the door body when it is closed, effectively preventing the door body from being accidentally opened or even colliding with the train due to factors such as wind pressure, vibration or human error generated during train operation. At the same time, it can prevent passengers or objects from falling onto the tracks, ensuring the safety of train operation and passenger life. Moreover, it reduces the vibration of the door body during train operation, reduces the noise generated by the door body due to vibration, improves the passenger's riding comfort, extends the service life of the door body, and reduces maintenance costs.
[0031] According to some embodiments of the present invention, one of the first fixing part and the second fixing part is a fixing block 11, and the other of the first fixing part and the second fixing part is a fixing groove 20. The fixing block 11 is received in the fixing groove 20 to fix the door body.
[0032] In some embodiments, the first fixing part is constructed as a fixing block 11. In this case, the fixing block 11 is provided on the door body, and the fixing device is provided with a fixing groove 20. The fixing groove 20 of the fixing device moves to receive the fixing block 11, thereby fixing the door body. In other embodiments, the first fixing part is constructed as a fixing groove 20. In this case, the fixing groove 20 is provided on the door body, and the fixing device is provided with a fixing block 11. The fixing block 11 moves and is received in the fixing groove 20 to fix the door body.
[0033] According to some embodiments of the present invention, the fixing device includes a mounting base 12, which is connected to the protective device and / or concrete structure of the platform. The mounting base 12 is movably connected to a fixing block 11, and the door body is provided with a fixing groove 20.
[0034] In some embodiments, the mounting base 12 may be connected to the protective device of the platform; the mounting base 12 may be connected to the concrete structure; or the mounting base 12 may be connected to both the protective device and the concrete structure, without limitation.
[0035] It is understood that the mounting base 12 is movably connected to the fixing block 11, which is constructed as the second fixing part mentioned above. The door body is provided with a fixing groove 20, which is constructed as the first fixing part mentioned above. The fixing block 11 moves and is accommodated in the fixing groove 20 to fix the door body.
[0036] According to some embodiments of the present invention, the door body is provided with a connecting block 21 extending toward the track, and a fixing plate 22 is provided at the free end of the connecting block 21. The door body, the connecting block 21 and the fixing plate 22 together define a fixing groove 20.
[0037] It is understood that the door body, connecting block 21 and fixing plate 22 together define the fixing groove 20, which is a "U" shaped groove. When the fixing block 11 moves and is accommodated in the fixing groove 20, the door body can be fixed.
[0038] According to some embodiments of the present invention, in the track extension direction, the fixing block 11 is provided with a first guide surface 111 on both sides, and the connecting block 21 is provided with a second guide surface on both sides, and the first guide surface 111 and the second guide surface guide each other.
[0039] It is understood that the door slides and has a first state and a second state. In the first state, the passage of the protective device is open, and in the second state, the passage of the protective device is closed. When the fixing block 11 is in its normal state, the projection of the fixing block 11 in the horizontal direction partially overlaps with the fixing groove 20. When the door slides from the first state to the second state, one of the first guide surfaces 111 of the fixing block 11 can guide and cooperate with one of the second guide surfaces of the connecting block 21 to drive the fixing block 11 away from the door, so that the door can slide smoothly to the second state. When the door slides to the second state, the fixing block 11 moves toward the door and is received in the fixing groove 20.
[0040] When the door slides from the second state to the first state, one of the first guide surfaces 111 of the fixed block 11 guides and engages with one of the second guide surfaces of the connecting block 21 to drive the fixed block 11 away from the door, so that the door can slide smoothly to the first state.
[0041] Therefore, the above arrangement can avoid the need for a device to drive the fixed block 11 to move, thereby simplifying the structure of the train platform screen door assembly and reducing the production cost of the train platform screen door assembly.
[0042] According to some embodiments of the present invention, the fixing device further includes a return spring 13, which is disposed between the mounting base 12 and the fixing block 11, and the two ends of the return spring 13 are respectively connected to the mounting base 12 and the fixing block 11.
[0043] In some embodiments, the return spring 13 is elastic. During the process of the door switching from the first state to the second state, or during the process of the door switching from the second state to the first state, the connecting block 21 will drive the fixing block 11 to move away from the door. At this time, the return spring 13 is compressed and stores elastic potential energy. When the door moves and the contact between the connecting block 21 and the fixing block 11 is released, the return spring 13 drives the fixing block 11 to move toward the door.
[0044] Therefore, the reset spring 13 allows the fixing block 11 to be stably housed in the fixing groove 20, thereby achieving stable fixing of the door and preventing the door from being opened accidentally.
[0045] According to some embodiments of the present invention, the concrete structure is provided with an installation groove that opens toward the track, and the fixing device further includes an installation pipe 15, which is disposed in the installation groove and has an adjustment opening that opens toward the track. The mounting seat 12 is movably disposed in the installation pipe 15 and is adapted to move along the axial direction of the installation pipe 15.
[0046] In some embodiments, a mounting groove is provided on the concrete structure, with the top or bottom of the mounting groove being open to provide a channel for the movement of the fixing block 11, thereby allowing the fixing block 11 to be received or protrude from the mounting groove. The mounting groove is open towards the track, and a mounting tube 15 is provided inside the mounting groove. The side wall of the mounting tube 15 is provided with an adjustment opening that opens to the track. The axis of the mounting tube 15 is parallel to the direction of gravity. By adjusting the opening, the operator can more easily adjust the position of the mounting seat 12, thereby adjusting the position of the fixing block 11, and thus adjusting the proportion of the fixing block 11 received within the fixing groove 20, so as to adjust the fixing stability of the door body.
[0047] It is worth mentioning that by adjusting the position of the mounting base 12, it can be ensured that the fixing block 11 always fits stably with the fixing groove 20 on the door body, so that the fixing device can be used for different models of door bodies, improving the versatility and adaptability of the shielding door assembly.
[0048] According to some embodiments of the present invention, the inner peripheral wall of the mounting tube 15 is provided with a first thread, and the mounting base 12 includes a first split part 121 and a second split part 122. The first split part 121 is rotatably connected to the return spring 13, and the outer peripheral wall of the first split part 121 is provided with a second thread that mates with the first thread. The second split part 122 is located on the side of the first split part 121 away from the return spring 13, and the diameter of the second split part 122 is smaller than the diameter of the first split part 121.
[0049] In some embodiments, by adjusting the opening, the operator can easily control the second split part 122, thereby driving the second split part 122 to rotate, which in turn drives the first split part 121 to rotate, thus adjusting the position of the mounting base 12. Preferably, the cross-section of the second split part 122 is hexagonal or adapted to a universal tool to facilitate operation of the second split part 122.
[0050] In other embodiments, a plurality of return springs 13 are provided on the side of the fixing block 11 away from the door body. The free ends of the plurality of return springs 13 are all connected to the connecting plate 14. The connecting plate 14 is rotatably connected to the first split part 121. Thus, the arrangement of the plurality of return springs 13 can ensure the driving force on the fixing block 11, thereby ensuring that the fixing block 11 can be stably received in the fixing groove 20. The connecting plate 14 is rotatably connected to the first split part 121 to prevent the fixing block 11 from rotating when the mounting base 12 rotates to adjust its position, thus ensuring the position of the fixing block 11 (ensuring that the first guide surface 111 can stably guide and cooperate with the second guide surface).
[0051] In some other embodiments, the fixing device also includes a limiting tube 16. A third thread is provided on a portion of the outer peripheral wall of the limiting tube 16. The third thread engages with the first thread. Thus, by rotating the limiting tube 16, the connection between the limiting tube 16 and the mounting tube 15 can be achieved. A portion of the fixing block 11 is movably disposed within the limiting tube 16. A portion of the inner peripheral wall of the limiting tube 16 can restrict a portion of the outer peripheral wall of the fixing block 11, thereby ensuring that the fixing block 11 can move stably along the axial direction of the limiting tube 16, and thus ensuring that the fixing block 11 can stably engage with the fixing groove 20.
[0052] According to some embodiments of this utility model, the door structure consists of two parts, and each door corresponds to at least one fixing device.
[0053] In some embodiments, the train platform screen door assembly of this application has two doors. The two doors move toward each other to close the protective device passage, and the two doors move away from each other to open the protective device passage. When the two doors move toward each other and close the passage, the fixing plates 22 on the two doors contact each other. At the same time, the fixing blocks 11 of the two fixing devices are respectively housed in the fixing grooves 20 on the two doors (the sides of the two fixing blocks 11 facing away from each other abut against the sides of the two connecting blocks 21 facing each other). At this time, under the cooperative action of all the above components, the doors will not move along the extension direction of the track, thereby achieving further fixation of the two doors.
[0054] In other embodiments, one of the fixing plates 22 has a mating groove at its free end, and the other fixing plate 22 has a mating block at its free end. When the two doors mate and close the passage, the mating block is received in the mating groove. Thus, the inner peripheral wall of the mating groove and the outer peripheral wall of the mating block restrict each other, making the door's position in the track width direction more stable, and further ensuring the stability of the door closing the passage.
[0055] According to some embodiments of the present invention, the train platform screen door assembly also includes a monitoring device, which is connected to the protective device of the door and / or the platform. The monitoring device is adapted to monitor the gap between the train and the door, the wind pressure on the door, and the train speed.
[0056] In some embodiments, the monitoring device includes a laser speed measuring device, a pressure sensor, and a distance sensor. Laser speed measuring devices are installed at both ends of the station and are connected to the protective device. The laser speed measuring device works by recording the time when the front of the train enters and the rear of the train leaves the station's starting point, and calculating the train's speed at the station's starting point by dividing the train length (with a fixed number of train sets and vehicle lengths over a certain period) by the time. The same method is used to calculate the train's speed at the station's ending point. The average of the train's speed at the station's starting point and ending point is taken as the train's speed when passing through the station. Pressure sensors are installed at key points on the protective device and the door (such as the four corners and center of the protective device and door). The pressure sensors measure the pressure exerted on the measurement location when the train passes. Distance sensors are installed next to the pressure sensors and measure the minimum distance between the train and the platform screen door at that point when the train passes.
[0057] Of course, the monitoring device may also include a terminal, which is connected to the laser velocimetry device, pressure sensor, and distance sensor. The terminal's database can store data from the laser velocimetry device, pressure sensor, and distance sensor, and the terminal's platform can analyze the data, display charts, and provide abnormal prompts (alarms).
[0058] Therefore, by collecting distance, pressure, and speed data, and establishing a graph showing the relationship between the three, with speed as the independent variable and distance and pressure as the dependent variables, analysis can be conducted to determine if there are any abnormalities in the train or the doors when the dependent variable exceeds the fluctuation range. At the same time, based on the data information, data support is provided for the formulation of the screen door clearance for underground stations with high-speed passage.
[0059] In some embodiments, the door is positioned 30mm from the edge of the platform. It is understood that this 30mm gap ensures proper connection between the train and the door while minimizing the gap between them. Compared to excessively large gaps, this design significantly reduces the risk of passengers being trapped when boarding or alighting, providing more reliable safety, especially for children, the elderly, and passengers carrying luggage. It also effectively prevents small objects (such as keys, coins, and mobile phones) from falling onto the tracks, avoiding disruption to train operation and reducing accidents and equipment malfunctions caused by foreign objects. This ensures the safe and stable operation of the rail transit system. Furthermore, in case of an emergency requiring passenger evacuation during train operation, this design facilitates quick and safe evacuation from the train to the platform, reducing evacuation difficulties and safety hazards caused by excessively large gaps.
[0060] It is worth mentioning that the aforementioned 30mm gap can better accommodate the dynamic deviation and installation error of the train, reducing the occurrence of train delays and stops for adjustment caused by gap issues. Moreover, the train can enter and exit the platform more smoothly, improving the on-time rate and operational efficiency of the train, and reducing the time spent on safety inspections and fault handling.
[0061] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
[0062] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A train platform screen door assembly, characterized in that, include: The door body is slidably connected to the protective device of the platform. The door body can be slid to selectively open or close the passage of the protective device. The top and / or bottom of the door body are provided with a first fixing part. A fixing device is connected to the protective device and / or concrete structure of the platform. The fixing device is provided with a movable second fixing part that cooperates with the first fixing part in the track width direction. The second fixing part is adapted to cooperate with the first fixing part when the door closes the passage.
2. The train platform screen door assembly according to claim 1, characterized in that, One of the first fixing part and the second fixing part is a fixing block (11), and the other of the first fixing part and the second fixing part is a fixing groove (20). The fixing block (11) is received in the fixing groove (20) to fix the door body.
3. The train platform screen door assembly according to claim 2, characterized in that, The fixing device includes a mounting base (12), which is connected to the protective device and / or concrete structure of the platform. The mounting base (12) is movably connected to a fixing block (11), and the door body is provided with a fixing groove (20).
4. The train platform screen door assembly according to claim 3, characterized in that, The door body is provided with a connecting block (21) extending toward the track, and a fixing plate (22) is provided at the free end of the connecting block (21). The door body, the connecting block (21) and the fixing plate (22) together define the fixing groove (20).
5. The train platform screen door assembly according to claim 4, characterized in that, In the direction of track extension, the fixed block (11) is provided with a first guide surface (111) on both sides, and the connecting block (21) is provided with a second guide surface on both sides, with the first guide surface (111) and the second guide surface cooperating in a guiding manner.
6. The train platform screen door assembly according to claim 3, characterized in that, The fixing device also includes a return spring (13), which is disposed between the mounting base (12) and the fixing block (11), and the two ends of the return spring (13) are respectively connected to the mounting base (12) and the fixing block (11).
7. The train platform screen door assembly according to claim 6, characterized in that, The concrete structure is provided with an installation groove that opens toward the track. The fixing device also includes an installation pipe (15), which is disposed in the installation groove and has an adjustment opening that opens toward the track. The mounting seat (12) is movably disposed in the installation pipe (15) and is adapted to move along the axial direction of the installation pipe (15).
8. The train platform screen door assembly according to claim 7, characterized in that, The inner circumferential wall of the mounting tube (15) is provided with a first thread. The mounting base (12) includes a first split part (121) and a second split part (122). The first split part (121) is rotatably connected to the return spring (13). The outer circumferential wall of the first split part (121) is provided with a second thread that mates with the first thread. The second split part (122) is located on the side of the first split part (121) away from the return spring (13), and the diameter of the second split part (122) is smaller than the diameter of the first split part (121).
9. The train platform screen door assembly according to claim 1, characterized in that, The door structure consists of two parts, and each door corresponds to at least one of the fixing devices.
10. The train platform screen door assembly according to claim 1, characterized in that, It also includes a monitoring device, which is connected to the protective devices of the gate and / or platform, and the monitoring device is adapted to monitor the gap between the train and the gate, the wind pressure on the gate, and the train speed.