Railway platform linkage type lifting safety fence

The railway platform's interconnected lifting safety railings have enabled full-process safety protection and barrier-free passage for trains, solving the problems of inconvenient barrier-free passage services and passenger falls, and improving the stability of platform operations and passenger experience.

CN121133751BActive Publication Date: 2026-06-19WENZHOU MINGJUN INTELLIGENT EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WENZHOU MINGJUN INTELLIGENT EQUIPMENT CO LTD
Filing Date
2025-10-31
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In the existing technology, the barrier-free access service of railway platforms is inconvenient, and the warning lines and safety personnel supervision have limited effectiveness, which can easily lead to passenger fall accidents. In addition, the existing guardrails cannot effectively integrate barrier-free access and passenger guidance functions.

Method used

A railway platform linkage lifting safety guardrail was designed. Through the coordinated work of drive components, accessibility components and warning guidance components, the entire train process is linked. It includes lifting guardrail, accessibility passage and information prompts, and integrates alarms, OLED screens, etc., to provide safety protection, precise guidance and accessibility services.

🎯Benefits of technology

It has improved the stability and coordination of platform operations, reduced the risk of passengers falling, improved travel efficiency and passenger waiting experience, provided convenient barrier-free access, and optimized the utilization of platform space.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of intelligent guardrail technology and discloses a railway platform linkage lifting safety guardrail, comprising multiple bases, each base having a top cover fixedly connected to its top, and each top cover having an alarm installed on its top. A mounting block is slidably connected to one side of the rear end of each base. A drive assembly is located on the bottom inner wall of each base, and a first brake motor is fixedly connected to one side of the bottom of each base. A pulley is fixedly connected to the output end of the first brake motor. Key information is dynamically displayed in stages using an OLED screen. Designs such as high-brightness green markings and enlarged fonts in densely populated areas enable precise passenger flow management, reducing congestion and shortening train stop times, thus improving travel efficiency. In terms of humanistic care, the foldable barrier-free access is easy to operate, allowing for quick connection to carriages without complex tools, providing safe travel assistance for special groups and demonstrating service inclusivity.
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Description

Technical Field

[0001] This invention relates to the field of intelligent guardrail technology, specifically to a railway platform linkage lifting safety guardrail. Background Technology

[0002] As we all know, guardrails serve a protective function and are commonly made of steel, such as round steel pipes, square steel pipes, or profiled steel sheets. They are widely used in buildings, factories, roads, stations, and other places. With the development of technology, height-adjustable guardrails have appeared on the market. Through control, the railings can be raised and lowered, making them suitable for scenarios where opening and closing are timed or can be manually controlled.

[0003] In crowded places such as bus stops and railway platforms, people often fall onto the platform for various reasons, causing accidents. In the current technology, warning lines are usually set up or safety officers are responsible for supervision. However, due to the large number of people, the warning effect of the warning lines is weak, and the supervision ability of the safety officers is limited, so accidents are still very easy to occur.

[0004] The existing barrier-free travel services on railways are an important part of the construction of a barrier-free environment and an inevitable requirement for implementing the national strategy of actively addressing population aging. They are also necessary to ensure that people with disabilities and the elderly can participate in and integrate into social life equally, fully, and conveniently. However, while existing high-speed trains and regular trains have barrier-free carriages, most of which are fixed, staff have to remove the barrier-free ramps from storage when people with disabilities or the elderly have difficulty boarding. These ramps are then removed after the passengers have boarded, which is very inconvenient. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a railway platform linkage lifting safety guardrail, which solves the problem of inconvenient barrier-free access services.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a railway platform linkage lifting safety guardrail, comprising multiple bases, each base having a top cover fixedly connected to its top, each top cover having an alarm installed on its top, each base having a mounting block slidably connected to its rear end, each base having a drive assembly installed on its inner bottom wall, each base having a first brake motor fixedly connected to its bottom side, the output end of the first brake motor fixedly connected to a pulley, each mounting block having a pulley rotatably connected to its bottom side, a belt being provided between the two pulleys, a rotating component rotatably connected to the outer wall of the belt, a protective cloth being provided on the top of the belt, a reset block fixedly connected to the other side of the bottom rear end of the base, a sliding groove fixedly connected to one side of the reset block, a reset slope being provided on the top side of the reset block, an obstacle-free component being provided on the top of the rotating component, and a semi-transparent flexible OLED screen penetrating and installed at one end of the base.

[0007] Preferably, the drive assembly includes a second brake motor, which is connected to and fixedly connected to the bottom of the base. A planetary reducer is fixedly connected to the output end of the second brake motor, a lead screw is fixedly connected to the output end of the planetary reducer, and a slide rod is fixedly connected to the top of the lead screw.

[0008] Preferably, the outer wall of the lead screw is threaded with evenly distributed nut lifting plates, and a flexible connecting rope is fixedly connected between adjacent nut lifting plates. Both ends of the nut lifting plates are fixedly connected with evenly distributed ropes.

[0009] Preferably, the barrier-free component includes a first folding plate, one end of which is fixedly connected to one end of a rotating member, and connecting blocks are rotatably connected to the other ends of both sides of the first folding plate, with a second folding plate rotatably connected to the other end of the connecting blocks.

[0010] Preferably, a connecting block two is rotatably connected to the middle of one end of each side of the second folding plate, a third folding plate is rotatably connected to the other end of the connecting blocks two, a connecting block three is rotatably connected to the middle of one end of each side of the third folding plate, and a connecting board is rotatably connected to the other end of the connecting blocks three.

[0011] Preferably, a second gear is fixedly connected to one end of both sides of the second folding plate, and a first gear is fixedly connected to one end of both sides of the third folding plate, and the first gear meshes with the second gear.

[0012] Preferably, a sliding block is provided on one side of the first folding plate, a fixing block is fixedly connected to one side of the sliding block, and an infrared distance sensor is fixedly connected to one end of the fixing block.

[0013] Preferably, the inner wall of the base is fixedly connected with evenly distributed rectangular slide rails, the inner wall of the rectangular slide rails is slidably connected with magnetic sliders, and an electromagnet is fixedly connected through and to one end of each rectangular slide rail.

[0014] Working Principle: This railway platform linkage lifting safety barrier operates in tandem with the entire process of train "entering the station - stopping - leaving the station." Its core functionality involves the coordinated efforts of a drive component, an accessibility component, and a warning and guidance component, balancing safety protection, precise guidance, and suitability for special groups. When there is no train, the second brake motor of the drive component stops, the nut-mounted lifting plate descends along the screw to the bottom of the base, the rope is retracted (corresponding to the position in Figure 1), the electromagnet is de-energized, the magnetic slider is not attracted, the flexible connecting rope is slack, and the protective cloth prevents foreign objects from entering the reset block and the slide groove. The rotating part of the accessibility component fits against the reset block, the first to third folding plates and the connecting plate are folded and stored, and the connecting plate is held in place by a torsion spring. A semi-transparent flexible OLED screen displays platform safety tips, real-time weather, and public service advertisements, while the alarm is in standby mode. When the train enters the station, the second brake motor rotates forward, driving the lead screw to rotate via the planetary reducer. The nut-mounted lifting plates rise sequentially along the rectangular slide rail—the first one rises to the top of the lead screw and then moves back and forth, followed by the next one rising sequentially and pushing the previous one against the slide bar, causing the rope to rise and form a guardrail. At the same time, the alarm flashes and sounds to remind passengers. The OLED screen switches between displaying "train countdown + carriage availability," with areas with sufficient availability highlighted in green to guide passenger flow. The first brake motor drives the rotating parts to move along the slide rail via pulleys and belts. After disengaging from the reset block, it rotates with the folding plate under gravity. When staff step on the folding plate, the meshing transmission of the first and second gears unfolds the folding plate (Figure 7 style). The infrared distance sensor detects the train's position in real time. When the detected distance is greater than a certain value of the folding plate length and the vehicle is roughly aligned with the platform position, the movement stops. When the train stops, if a disabled or elderly person is traveling, staff can use their feet to push the access board to connect with the carriage, creating an accessible passage. The folding board is stabilized by gear engagement and a torsion spring. The OLED screen switches between "door closing countdown + transfer guidance," automatically adjusting the font size according to passenger density (50% magnification in dense areas) and simultaneously indicating the location of the accessible carriage. After the train leaves the station, the second brake motor reverses, causing the lowest nut-type lifting plate to move down first. An electromagnet then activates the magnetic slider of the second-to-last nut-type lifting plate, pulling all nut-type lifting plates and ropes back to their original positions via a flexible connecting rope. The first brake motor reverses, causing the first folding plate to contact the reset ramp, folding and storing the rotating parts and the folding plate. The access board is then reset by the torsion spring. The alarm stops working, the OLED screen returns to its initial display, and the entire system returns to standby mode, awaiting the next activation.

[0015] This invention provides a linkage-type lifting safety guardrail for railway platforms. It has the following beneficial effects:

[0016] 1. This invention utilizes rope lifting to create a closed-loop protection system, coupled with audible and visual alarms, to mitigate safety risks such as passenger falls and leaning against obstacles at the source. The protective fabric shielding key components also reduces interference from foreign objects, ensuring a clean operating environment. Furthermore, the drive components employ a planetary reducer and lead screw combination, resulting in smooth lifting and high load-bearing capacity. The dual reset mechanism of the electromagnet and flexible connecting rope, along with the step-by-step lifting design, avoids motion interference. The barrier-free components rely on mechanical transmission and gravity operation, resulting in a simple structure and low failure rate. This enhances the stability of equipment operation and extends service life by reducing wear, thus lowering maintenance costs. Simultaneously, all components precisely coordinate throughout the entire train "entry-stop-departure" process, responding synchronously with the train's arrival and departure status, ensuring smooth connection between all aspects of platform operation and improving overall operational coordination.

[0017] 2. In terms of passenger flow guidance, this invention utilizes OLED screens to dynamically display key information in stages. Through designs such as high-brightness green markers and enlarged text in densely populated areas, it achieves precise passenger diversion, reducing congestion and shortening train stop times, thus improving travel efficiency. Regarding human-centered design, the foldable barrier-free access is easy to operate, allowing for quick connection to carriages without complex tools, providing safe travel assistance for special groups and demonstrating service inclusivity. Furthermore, when no trains are running, the OLED screens can be reused as a display medium for safety reminders, weather information, and public service advertisements. The guardrails integrate multiple functions including safety protection, passenger flow guidance, and barrier-free assistance, eliminating the need for additional specialized equipment. This optimizes platform space utilization, enriches service scenarios, and comprehensively enhances the passenger waiting experience and the platform's overall service capabilities. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram of the groove of the present invention;

[0020] Figure 3 This is a schematic diagram of the unfolded folding plate of the present invention;

[0021] Figure 4 This is a front view of the present invention;

[0022] Figure 5 This is a schematic diagram of the base of the present invention;

[0023] Figure 6 This is a schematic diagram of the magnetic slider of the present invention;

[0024] Figure 7 This is a schematic diagram of the folding plate of the present invention.

[0025] The components are as follows: 1. Base; 2. Top cover; 3. Alarm; 4. Reset block; 5. Slide groove; 6. Mounting block; 7. Rope; 8. Pulley; 9. Belt; 10. Rotating component; 11. Protective cloth; 12. Reset slope; 13. First folding plate; 14. Second folding plate; 15. Third folding plate; 16. Connecting plate; 17. First gear; 18. Second gear; 19. First brake motor; 20. Semi-transparent flexible OLED screen; 21. Second brake motor; 22. Planetary reducer; 23. Lead screw; 24. Slide rod; 25. Nut pair lifting plate; 26. Rectangular slide rail; 27. Electromagnet; 28. Infrared distance sensor; 29. ​​Flexible connecting rope; 30. Magnetic slider; 31. Connecting block one; 32. Slide groove block; 33. Fixing block; 34. Connecting block two; 35. Connecting block three. Detailed Implementation

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example:

[0028] Please see the appendix Figure 1 -Appendix Figure 7 This invention provides a railway platform linkage lifting safety guardrail, comprising multiple bases 1, each base 1 having a top cover 2 fixedly connected to its top, and each top cover 2 having an alarm 3 mounted on its top. A mounting block 6 is slidably connected to one side of the rear end of each base 1. A drive assembly is located on the bottom inner wall of each base 1. A first brake motor 19 is fixedly connected to one side of the bottom of each base 1, and a pulley 8 is fixedly connected to the output end of the first brake motor 19. A pulley 8 is rotatably connected to one side of the bottom of each mounting block 6, and a belt 9 is positioned between the two pulleys 8. The outer wall of the belt 9 is rotatably connected to... The base 1 has a rotating component 10, a protective cloth 11 on the top of the belt 9, a reset block 4 fixedly connected to the other side of the bottom rear end of the base 1, a slide groove 5 fixedly connected to one side of the reset block 4, a reset slope 12 on one side of the top of the reset block 4, an obstacle-free component on the top of the rotating component 10, a semi-transparent flexible OLED screen 20 through and provided at one end of the base 1, a rectangular slide rail 26 evenly distributed fixedly connected to the inner wall of the base 1, a magnetic slider 30 slidably connected to the inner wall of the rectangular slide rail 26, and an electromagnet 27 through and fixedly connected to the top of one end of the rectangular slide rail 26.

[0029] When this device is turned on or off, the alarm 3 flashes and sounds. The protective cloth 11 can prevent foreign objects from entering the reset block 4 and the slide 5. Before the train arrives at the station, the semi-transparent flexible OLED screen 20 displays "train countdown (e.g., 'G1234, arriving in 3 minutes') + carriage availability distribution (e.g., 'Carriages 1-4 are full, carriages 5-8 have ample availability')", and the area corresponding to the carriage with ample availability is highlighted in green (visually guiding passenger flow).

[0030] When the train stops: a "door opening countdown (e.g., 'The doors are about to close, 20 seconds left') + transfer instructions (e.g., 'Please exit from Exit B to transfer to Line 2')" is displayed, and the font size of the transfer information is automatically adjusted according to passenger flow density (the font size is enlarged by 50% in densely populated areas). At the same time, prompts are given for accessible carriages.

[0031] When there are no trains: Display "Platform safety tips (such as 'Do not lean against the guardrail') + real-time weather + public service advertisements" to avoid the screen being idle.

[0032] Please see the appendix Figure 5 -Appendix Figure 6 The drive assembly includes a second brake motor 21, which is connected to the bottom of the base 1. A planetary reducer 22 is fixedly connected to the output end of the second brake motor 21. A lead screw 23 is fixedly connected to the output end of the planetary reducer 22. A slide rod 24 is fixedly connected to the top of the lead screw 23. Nut auxiliary lifting plates 25 are threaded through and threaded to the outer wall of the lead screw 23. Flexible connecting ropes 29 are fixedly connected between adjacent nut auxiliary lifting plates 25. Both ends of the nut auxiliary lifting plates 25 are fixedly connected with evenly distributed ropes 7.

[0033] When the high-speed rail or train has not arrived, the rope of this device is in ( ). Figure 1 When the vehicle (instead of a railway vehicle) arrives, the second brake motor 21 operates, driving the planetary reducer 22 and the lead screw 23 to rotate, thereby causing the nut auxiliary lifting plate 25 to rise. When the first nut auxiliary lifting plate 25 rises to the top of the lead screw 23, it moves back and forth on the lead screw 23 (rising and falling back). When the second nut auxiliary lifting plate 25 moves to the top of the lead screw 23, it pushes the first nut auxiliary lifting plate 25 onto the slide bar 24. The third, fourth, and fifth nut auxiliary lifting plates 25 rise in sequence. After the vehicle has finished loading passengers, the second brake motor 21 reverses, driving the lowest nut auxiliary lifting plate 25 to move downwards. Then, the electromagnet 27 is activated, and the electromagnet 27 attracts the magnetic slider 30 on the second-to-last nut auxiliary lifting plate 25. When the flexible connecting rope 29 pulls on the nut auxiliary lifting plate 25, the rope 7 is reset.

[0034] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 7 The barrier-free component includes a first folding plate 13, one end of which is fixedly connected to one end of a rotating member 10. Connecting blocks 11 are rotatably connected to the other ends of both sides of the first folding plate 13. A second folding plate 14 is rotatably connected between the other ends of connecting blocks 11 and 31. Connecting blocks 24 are rotatably connected to the middle of one end of both sides of the second folding plate 14. A third folding plate 15 is rotatably connected to the other end of connecting blocks 24 and 34. Connecting blocks 35 are rotatably connected to the middle of one end of both sides of the third folding plate 15. A hitchhiking board 16 is rotatably connected between the other ends of connecting blocks 35 and 35. A second gear 18 is fixedly connected to one end of both sides of the second folding plate 14. A first gear 17 is fixedly connected to one end of both sides of the third folding plate 15, and the first gear 17 meshes with the second gear 18. A sliding block 32 is provided on one side of the first folding plate 13. A fixing block 33 is fixedly connected to one side of the sliding block 32. An infrared distance sensor 28 is fixedly connected to one end of the fixing block 33.

[0035] When the rotating component 10 completely leaves the reset block 4, gravity causes the rotating component 10 and the folding plate to rotate. The worker then presses down on the folding plate, causing the first folding plate 13, the second folding plate 14, and the third folding plate 15 to become (…). Figure 7 The vehicle's position is detected by an infrared distance sensor 28, which is approximately the same as the platform position. When the detected distance increases, the vehicle moves a certain distance beyond the length of the folding board and then stops. When disabled or elderly people need to board, staff only need to place the boarding board 16 with their feet. A torsion spring is installed between the third folding board 15 and the boarding board 16, allowing the device to... Figure 7 After use, reverse the first brake motor 19 so that the first folding plate 13 contacts the reset slope 12, so that the first folding plate 13 drives the rotating part 10 to reset.

[0036] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A railway platform interlocking lifting safety fence comprising a plurality of bases (1), characterized in that, The top of each base (1) is fixedly connected to a top cover (2), and an alarm (3) is provided on the top of each top cover (2). A mounting block (6) is slidably connected to one side of the rear end of each base (1). A drive assembly is provided at the bottom of the inner wall of the base (1). A first brake motor (19) is fixedly connected to one side of the bottom of the base (1). A pulley (8) is fixedly connected to the output end of the first brake motor (19). A pulley (8) is rotatably connected to one side of the bottom of the mounting block (6). The two pulleys (8) are connected to each other... A belt (9) is provided between the base (1), and a rotating component (10) is rotatably connected to one side of the outer wall of the belt (9). A protective cloth (11) is provided on the top of the belt (9). A reset block (4) is fixedly connected to the other side of the bottom rear end of the base (1). A slide groove (5) is fixedly connected to one side of the reset block (4). A reset slope (12) is provided on one side of the top of the reset block (4). An obstacle-free component is provided on the top of the rotating component (10). A semi-transparent flexible OLED screen (20) is provided through one end of the base (1).

2. A railway platform interlocking safety fence according to claim 1, wherein The drive assembly includes a second brake motor (21), which is connected to the bottom of the base (1) through and fixedly connected. The output end of the second brake motor (21) is fixedly connected to a planetary reducer (22), and the output end of the planetary reducer (22) is fixedly connected to a lead screw (23). The top of the lead screw (23) is fixedly connected to a slide rod (24).

3. A railway platform interlocking lift safety fence according to claim 2, wherein, The outer wall of the lead screw (23) is threaded with evenly distributed nut lifting plates (25), and a flexible connecting rope (29) is fixedly connected between adjacent nut lifting plates (25). Both ends of the nut lifting plates (25) are fixedly connected with evenly distributed ropes (7).

4. A railway platform interlocking safety fence according to claim 1, wherein The barrier-free component includes a first folding plate (13), one end of which is fixedly connected to one end of a rotating member (10), and the other ends of both sides of the first folding plate (13) are rotatably connected to a connecting block (31), and the other end of the connecting block (31) is rotatably connected to a second folding plate (14).

5. A railway platform interlocking safety fence according to claim 4, wherein The second folding plate (14) is rotatably connected to one end of each side of the middle of the second folding plate (14), and the other end of the second folding plate (34) is rotatably connected to the third folding plate (15). The third folding plate (15) is rotatably connected to one end of each side of the middle of the third folding plate (15), and the other end of the third folding plate (35) is rotatably connected to the connecting plate (16).

6. A railway platform interlocking safety fence according to claim 5, wherein, The second folding plate (14) is fixedly connected to one end of both sides with a second gear (18), and the third folding plate (15) is fixedly connected to one end of both sides with a first gear (17), and the first gear (17) meshes with the second gear (18).

7. A railway platform interlocking safety fence according to claim 4, wherein A sliding block (32) is provided on one side of the first folding plate (13), and a fixing block (33) is fixedly connected to one side of the sliding block (32), and an infrared distance sensor (28) is fixedly connected to one end of the fixing block (33).

8. A railway platform interlocking safety fence according to claim 1, wherein The inner wall of the base (1) is fixedly connected with a uniformly distributed rectangular slide rail (26), and the inner wall of the rectangular slide rail (26) is slidably connected with a magnetic slider (30). An electromagnet (27) is fixedly connected through the top of one end of the rectangular slide rail (26).

Citation Information

Patent Citations

  • Emergency escape and evacuation ramp device for urban rail transit vehicles

    CN107600090A

  • Intelligent single-double linkage guardrail type safety door of platform

    CN114000808A