Urban rail transit driving command safety device

Abstract

The application discloses a kind of urban rail transit driving command safety devices, including base, and display screen is located above base, the drive assembly for driving display screen reciprocating movement along vertical direction is arranged above base, the drive assembly includes the rotating connection on the upper surface of base by external driving equipment and driven shaft, the cylindrical cam is sleeved on the surface of driven shaft, the annular movable plate is sleeved on the surface of cylindrical cam, the slider that is adapted with the surface groove of cylindrical cam is integrally fixed in the annular movable plate, the limiting rod that is penetrated in annular movable plate is vertically fixed on the upper surface of base.The application, by setting drive assembly, to facilitate driving display screen reciprocating movement along vertical direction, so as to be able to expand the display range of display screen, since display screen is always in moving state, so as to be able to reduce the reflection problem of some angles due to light irradiation.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, specifically to a safety device for urban rail transit traffic control. Background Technology

[0002] Rail transit refers to a type of transportation or system where vehicles need to run on specific tracks. The most typical rail transit system is the railway system, which consists of traditional trains and standard railways. With the diversified development of train and railway technologies, rail transit has taken on more and more types, not only covering long-distance land transportation but also being widely used in short- and medium-distance urban public transportation.

[0003] A subway is a high-speed, high-capacity, electrically powered rail transit system built in cities. Trains run on fully enclosed tracks; lines in the city center are mostly located in underground tunnels, while lines outside the city center are generally located on elevated bridges or at ground level.

[0004] Safety control devices refer to display screens installed in subway stations to display train and station information. In the current technology, the display screens in subway stations are often installed in fixed locations, and under the illumination of lights, there will be glare when viewing the display screen from certain positions.

[0005] Therefore, we propose a safety device for urban rail transit traffic control to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a safety device for urban rail transit traffic control, which has a drive component to drive the display screen to move back and forth in the vertical direction, thereby expanding the display range of the display screen. Since the display screen is always in a moving state, it can reduce the reflection problem caused by light illumination at certain angles. This solves the problem that display screens in subway stations are often installed in fixed locations, and there will be reflection when viewing the display screen from certain positions under light illumination.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a safety device for urban rail transit traffic control, comprising a base and a display screen located above the base. A driving component for driving the display screen to reciprocate vertically is provided above the base. The driving component includes a rotating shaft driven by an external driving device and rotatably connected to the upper surface of the base. A cylindrical cam is sleeved on the surface of the rotating shaft. An annular movable plate is sleeved on the surface of the cylindrical cam. A slider adapted to the groove on the surface of the cylindrical cam is integrally fixed inside the annular movable plate. A limiting rod penetrating the annular movable plate is vertically fixed on the upper surface of the base.

[0008] Preferably, the driving assembly further includes an annular groove formed on the surface of the annular movable plate, and an annular sleeve is rotatably connected in the annular groove. Two symmetrically distributed extension plates are integrally fixed on the surface of the annular sleeve. A telescopic rod is fixedly connected between the extension plate and the display screen. A spring is sleeved on the surface of the telescopic rod. One end of the spring is fixed to the surface of the extension plate, and the other end is fixed to the display screen.

[0009] Preferably, a linkage component is provided above the display screen for driving the display screen to reciprocate horizontally while the display screen reciprocates up and down. The linkage component includes a disc sleeved on the upper end of a rotating shaft. Two symmetrically distributed vertical plates are fixedly connected to the upper surface of the disc. A rectangular plate is slidably connected between the two vertical plates. The surface of the rectangular plate has a movable groove for the rotating shaft to pass through. Two symmetrically distributed columns are fixedly connected to the upper surface of the rectangular plate. A cam located between the two columns is rotatably connected to the top of the rotating shaft.

[0010] Preferably, the linkage component further includes a connecting rod fixedly connected to one side of the rectangular plate, one end of the connecting rod being fixedly connected to a support rod, the surface of the support rod being provided with a convex-shaped groove, and a convex-shaped slider adapted to the convex-shaped groove being fixed on the rear surface of the display screen.

[0011] Preferably, an adjustment component is provided above the base for driving the display screen to rotate to guide the flow of people after the passengers get off the vehicle. The adjustment component includes an annular box sleeved on the surface of the rotating shaft and fixedly connected to the top of the limiting rod. The upper surface of the annular box is open and an annular frame is integrally fixed at the edge. An annular groove adapted to the annular frame is opened on the lower surface of the disc.

[0012] Preferably, a partition is integrally fixed inside the annular box, and a rectangular piston plate located inside the annular box is fixedly connected to the lower surface of the disc. One side of the rectangular piston plate is arc-shaped and fits against the inner wall of the annular box.

[0013] Preferably, the base has two symmetrically distributed installation boxes buried underground. A telescopic rod is vertically fixed to the bottom surface of the inner wall of the installation box. A pedal is fixedly connected to the top of the telescopic rod and extends to the outside of the installation box. A through hole adapted to the pedal is opened on the upper surface of the installation box. A spring is sleeved on the surface of the telescopic rod. One end of the spring is fixedly connected to the inner wall of the installation box, and the other end is fixedly connected to the pedal.

[0014] Preferably, a first pipe is fixed to the inner wall of the mounting box, a first check valve is installed at the lower end of the first pipe, a second pipe is fixed between the first pipe and the annular box, a second check valve is installed on the second pipe, both second pipes are connected to the annular box and are located on opposite sides of the rectangular piston plate, a piston rod extending into the first pipe is vertically fixed to the lower surface of the pedal, and a circular piston plate that can move up and down along the first pipe is fixedly connected to one end of the piston rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By setting up a driving component, the display screen can be driven to move back and forth in the vertical direction, thereby expanding the display area of ​​the screen. Since the display screen is always in motion, the reflection problem caused by light illumination at certain angles can be reduced.

[0017] 2. By setting up linkage components, the display screen can be driven to move back and forth in the horizontal direction, thereby further expanding the display area of ​​the display screen and enabling the display screen to move at multiple angles, further reducing the reflection problem caused by light illumination at certain angles.

[0018] 3. The display screen is installed between the two doors. When both doors open simultaneously, the number of people exiting is random. By setting an adjustment component, the display screen is rotated after both doors open, tilting it towards the side with fewer people exiting. The rotation direction of the display screen is determined by the number of people exiting from each door. The display screen will turn to the side with fewer people exiting, causing those on the side with more people to not be able to see the information on the display screen. As a result, some people will go around to the other side to see the information on the display screen, thus completing the flow diversion work and preventing too many people from exiting on the same side, which could lead to a stampede. This effectively improves the safety efficiency of the device. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a safety device for urban rail transit traffic control according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the driving component of the present invention. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the structure of the driving component of the present invention. Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the structure of the linkage component of the present invention. Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the structure of the linkage component of the present invention. Figure 2 ;

[0024] Figure 6 This is a schematic diagram of the structure of the regulating component of the present invention. Figure 1 ;

[0025] Figure 7 This is a schematic diagram of the structure of the regulating component of the present invention. Figure 2 ;

[0026] Figure 8 This is a schematic diagram of the structure of the regulating component of the present invention. Figure 3 .

[0027] In the diagram: 1. Base; 2. Display screen; 3. Drive assembly; 31. Rotating shaft; 32. Cylindrical cam; 33. Annular movable plate; 34. Limiting rod; 35. Annular groove; 36. Annular sleeve; 37. Extension plate; 38. Telescopic rod one; 39. Spring one; 4. Linkage assembly; 41. Disc; 42. Vertical plate; 43. Rectangular plate; 44. Movable groove; 45. Column; 46. Cam one; 47. Connecting rod; 48. Support rod; 49. T-shaped slide; 5. Adjustment assembly; 51. Annular box; 52. Annular frame; 53. Partition plate; 54. Rectangular piston plate; 551. Mounting box; 552. Telescopic rod two; 553. Pedal; 554. Spring two; 555. Pipe one; 556. One-way valve one; 557. Pipe two; 558. One-way valve two; 559. Piston rod; 560. Circular piston plate. Detailed Implementation

[0028] The technical solutions of 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.

[0029] Example 1

[0030] Please see Figures 1-3 The present invention provides a technical solution: a safety device for commanding train operation in urban rail transit, including a base 1 and a display screen 2 located above the base 1. A drive component 3 for driving the display screen 2 to move back and forth in the vertical direction is provided above the base 1.

[0031] In use, by setting the driving component 3, the display screen 2 can be driven to move back and forth in the vertical direction, thereby expanding the display range of the display screen 2. Since the display screen 2 is always in a moving state, the reflection problem caused by light illumination at certain angles can be reduced.

[0032] The drive assembly 3 includes a rotating shaft 31 that is driven by an external drive device and rotatably connected to the upper surface of the base 1. A cylindrical cam 32 is sleeved on the surface of the rotating shaft 31. An annular movable plate 33 is sleeved on the surface of the cylindrical cam 32. A slider that matches the groove on the surface of the cylindrical cam 32 is integrally fixed inside the annular movable plate 33. A limiting rod 34 that passes through the annular movable plate 33 is vertically fixed on the upper surface of the base 1.

[0033] The external drive device is a motor.

[0034] In use, the external drive device motor is started to drive the rotating shaft 31 to rotate. The rotating shaft 31 can drive the cylindrical cam 32 sleeved on its surface to rotate accordingly. The cylindrical cam 32 can drive the annular movable plate 33 sleeved on its surface to reciprocate in the vertical direction. Since the limiting rod 34 passes through the annular movable plate 33, the annular movable plate 33 can slide up and down along the limiting rod 34, and the annular movable plate 33 cannot rotate with the rotation of the cylindrical cam 32.

[0035] The drive assembly 3 also includes an annular groove 35 formed on the surface of the annular movable plate 33, and an annular sleeve 36 is rotatably connected in the annular groove 35. Two symmetrically distributed extension plates 37 are integrally fixed on the surface of the annular sleeve 36. A telescopic rod 38 is fixedly connected between the extension plate 37 and the display screen 2. A spring 39 is sleeved on the surface of the telescopic rod 38. One end of the spring 39 is fixed to the surface of the extension plate 37, and the other end is fixed to the display screen 2.

[0036] In use, when the annular movable plate 33 moves up and down, it can drive the annular sleeve 36 to move up and down as well. The annular sleeve 36 can drive the extension plate 37 to move up and down as well. The extension plate 37 can drive the display screen 2 to move up and down as well as through the telescopic rod 38.

[0037] Example 2

[0038] Please see Figures 4-5 This embodiment further explains Example 1, wherein a linkage component 4 is provided above the display screen 2 for driving the display screen 2 to reciprocate along the horizontal direction while the display screen 2 moves up and down.

[0039] In use, by setting the linkage component 4, the display screen 2 can be driven to move back and forth in the horizontal direction, thereby further expanding the display range of the display screen 2 and enabling the display screen 2 to move at multiple angles, further reducing the reflection problem caused by light illumination at certain angles.

[0040] The linkage component 4 includes a disc 41 sleeved on the upper end of the rotating shaft 31. Two symmetrically distributed upright plates 42 are fixedly connected to the upper surface of the disc 41. A rectangular plate 43 is slidably connected between the two upright plates 42. The surface of the rectangular plate 43 has a movable groove 44 for the rotating shaft 31 to pass through. Two symmetrically distributed columns 45 are fixedly connected to the upper surface of the rectangular plate 43. A cam 46 located between the two columns 45 is rotatably connected to the top of the rotating shaft 31.

[0041] In use, when the rotating shaft 31 rotates, it can drive the cam 46 sleeved on its top to rotate as well. The cam 46 can push the two columns 45 to move back and forth in the horizontal direction. The columns 45 can drive the rectangular plate 43 to move back and forth in the horizontal direction as well.

[0042] The linkage component 4 also includes a connecting rod 47 fixedly connected to one side of the rectangular plate 43. One end of the connecting rod 47 is fixedly connected to a support rod 48. The surface of the support rod 48 is provided with a convex groove 49. The rear surface of the display screen 2 is fixed with a convex slider that matches the convex groove 49.

[0043] In use, when the rectangular plate 43 moves horizontally, the connecting rod 47 can drive the support rod 48 to move horizontally as well. The support rod 48 can drive the display screen 2, which is slidably connected in the convex groove 49, to move back and forth horizontally.

[0044] Example 3

[0045] Please see Figures 6-8 This embodiment further illustrates Example 1, wherein an adjustment component 5 is provided above the base 1 to drive the display screen 2 to rotate and guide the flow of people after the passengers get off the vehicle.

[0046] In use, the display screen 2 is installed between two doors. When both doors open simultaneously, the number of people exiting is random. By setting the adjustment component 5, the display screen 2 is rotated after both doors open, causing it to tilt towards the side with fewer people exiting. The rotation direction of the display screen 2 is determined by the number of people exiting from each door. The display screen 2 will turn towards the side with fewer people exiting, causing the side with more people to not be able to see the information on the display screen 2. As a result, some people will go around to the other side to see the information on the display screen 2, thus completing the flow diversion work and preventing too many people from exiting on the same side, which could lead to a stampede. This effectively improves the safety efficiency of the device.

[0047] The adjustment component 5 includes an annular box 51 sleeved on the surface of the rotating shaft 31 and fixedly connected to the top of the limiting rod 34. The upper surface of the annular box 51 is open, and an annular frame 52 is integrally fixed at the edge. The lower surface of the disc 41 is provided with an annular groove that matches the annular frame 52.

[0048] A partition 53 is integrally fixed inside the annular box 51. A rectangular piston plate 54 located inside the annular box 51 is fixedly connected to the lower surface of the disc 41. One side of the rectangular piston plate 54 is arc-shaped and fits against the inner wall of the annular box 51.

[0049] Two symmetrically distributed mounting boxes 551 buried underground are provided on the outer side of the base 1. A telescopic rod 552 is vertically fixed to the bottom surface of the inner wall of the mounting box 551. A pedal 553 is fixedly connected to the top of the telescopic rod 552 and extends to the outside of the mounting box 551. A through hole adapted to the pedal 553 is opened on the upper surface of the mounting box 551. A spring 554 is sleeved on the surface of the telescopic rod 552. One end of the spring 554 is fixedly connected to the inner wall of the mounting box 551, and the other end is fixedly connected to the pedal 553.

[0050] In use, the two mounting boxes 551 are respectively buried in front of the doors on the left and right sides of the display screen 2. When the doors on both sides open and passengers get off, they will step on the pedal 553, causing the pedal 553 to move downward. After the passengers leave the pedal 553, the spring 554 will push the pedal 553 upward through the rebound force. The more passengers get off, the more times the pedal 553 moves up and down.

[0051] The inner wall of the mounting box 551 is fixed with a first pipe 555. A one-way valve 556 is installed at the lower end of the first pipe 555. A second pipe 557 is fixedly installed between the first pipe 555 and the annular box 51. A one-way valve 558 is installed on the second pipe 557. Both second pipes 557 are connected to the annular box 51 and are located on opposite sides of the rectangular piston plate 54. A piston rod 559 extending into the first pipe 555 is vertically fixed on the lower surface of the pedal 553. A circular piston plate 560 that can move up and down along the first pipe 555 is fixedly connected to one end of the piston rod 559.

[0052] In use, when the pedal 553 is stepped on by a passenger after getting off the vehicle and moves up and down, it can drive the piston rod 559 fixed on its lower surface and the circular piston plate 560 fixed at the lower end of the piston rod 559 to move up and down accordingly. When the circular piston plate 560 moves upward, it can draw in external air into the pipe 555 through the one-way valve 556. When the circular piston plate 560 moves downward, it can push the air in the pipe 555 into the pipe 557 through the one-way valve 558. Since the pipe 557 and the annular box 51 are interconnected, the air will enter the annular box 51 through the pipe 557.

[0053] Since the partition 53 and the rectangular piston plate 54 divide the interior of the annular box 51 into two independent spaces, and the two pipes 557 are located on opposite sides of the rectangular piston plate 54, when more passengers get off in one of the doors, the pedal 553 in front of them is stepped on more often, which causes the corresponding pipe 557 to deliver more air into one space of the annular box 51. The rectangular piston plate 54 will be pushed to the side with less air, that is, the side with fewer passengers getting off. The rectangular piston plate 54 can drive the disc 41 fixedly connected to it to rotate to the side with fewer passengers getting off. The disc 41 can drive the two vertical plates 42 fixed on its upper surface and the rectangular plate 43 slidably connected between the two vertical plates 42 to rotate. The rectangular plate 43 can drive the support rod 48 to rotate through the connecting rod 47. The support rod 48 can drive the display screen 2, which is slidably connected to its upper and lower limits, to rotate to the side with fewer passengers getting off.

[0054] Working principle: This urban rail transit traffic control safety device, when in use, starts the external drive equipment motor to drive the rotating shaft 31 to rotate. The rotating shaft 31 can drive the cylindrical cam 32 sleeved on its surface to rotate accordingly. The cylindrical cam 32 can drive the annular movable plate 33 sleeved on its surface to reciprocate in the vertical direction. Since the limiting rod 34 passes through the annular movable plate 33, the annular movable plate 33 can slide up and down along the limiting rod 34, and the annular movable plate 33 cannot rotate with the rotation of the cylindrical cam 32.

[0055] When the annular movable plate 33 moves up and down, it can drive the annular sleeve 36 to move up and down as well. The annular sleeve 36 can drive the extension plate 37 to move up and down as well. The extension plate 37 can drive the display screen 2 to move up and down as well as through the telescopic rod 38.

[0056] As the rotating shaft 31 rotates, it can drive the cam 46 sleeved on its top to rotate as well. The cam 46 can push the two columns 45 to move back and forth in the horizontal direction. The columns 45 can drive the rectangular plate 43 to move back and forth in the horizontal direction as well.

[0057] When the rectangular plate 43 moves horizontally, it can drive the support rod 48 to move horizontally along the same direction through the connecting rod 47. The support rod 48 can drive the display screen 2, which is slidably connected in the convex groove 49, to move back and forth horizontally.

[0058] The display screen 2 is installed between the two doors. When the two doors open at the same time, the number of people getting out is random. The two mounting boxes 551 are buried in front of the doors on the left and right sides of the display screen 2. When the doors on both sides open and passengers get off, they will step on the pedal 553, causing the pedal 553 to move downward. When the passengers leave the pedal 553, the spring 554 will push the pedal 553 upward through the rebound force. The more passengers get off, the more times the pedal 553 moves up and down.

[0059] When the pedal 553 is stepped on by a passenger after getting off the vehicle and moves up and down, it can drive the piston rod 559 fixed on its lower surface and the circular piston plate 560 fixed at the lower end of the piston rod 559 to move up and down accordingly. When the circular piston plate 560 moves upward, it can draw in external air into the pipe 555 through the one-way valve 556. When the circular piston plate 560 moves downward, it can push the air in the pipe 555 into the pipe 557 through the one-way valve 558. Since the pipe 557 and the annular box 51 are interconnected, the air will enter the annular box 51 through the pipe 557.

[0060] Because the partition 53 and the rectangular piston plate 54 divide the interior of the annular box 51 into two independent spaces, and the two pipes 557 are located on opposite sides of the rectangular piston plate 54, when more passengers get off at one of the doors, the pedal 553 in front of them is stepped on more often. This causes the corresponding pipe 557 to deliver more air into one space of the annular box 51, pushing the rectangular piston plate 54 towards the side with less air, i.e., the side with fewer passengers getting off. The rectangular piston plate 54 can drive the disc 41 fixedly connected to it to rotate towards the side with fewer passengers getting off. The two vertical plates 42 fixed on its upper surface and the rectangular plate 43 slidably connected between the two vertical plates 42 rotate accordingly. The rectangular plate 43 can drive the support rod 48 to rotate accordingly through the connecting rod 47. The support rod 48 can drive the display screen 2, which is slidably connected to its upper and lower limits, to rotate to the side with fewer passengers getting off the bus. This causes the side with more passengers to not be able to see the information on the display screen 2, so some people will go around to the other side to see the information on the display screen 2. This completes the diversion work and prevents too many people from getting off the bus on the same side, thus preventing stampedes and effectively improving the safety efficiency of the device.

[0061] 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 safety device for controlling train operation in urban rail transit, characterized in that: The device includes a base (1) and a display screen (2) located above the base (1). A drive assembly (3) for driving the display screen (2) to move back and forth in the vertical direction is provided above the base (1). The drive assembly (3) includes a rotating shaft (31) driven by an external drive device and rotatably connected to the upper surface of the base (1). A cylindrical cam (32) is sleeved on the surface of the rotating shaft (31). An annular movable plate (33) is sleeved on the surface of the cylindrical cam (32). A slider adapted to the groove on the surface of the cylindrical cam (32) is integrally fixed in the annular movable plate (33). A limiting rod (34) passing through the annular movable plate (33) is vertically fixed on the upper surface of the base (1). The display screen (2) is provided with a linkage component (4) above it for driving the display screen (2) to move back and forth in the horizontal direction while the display screen (2) moves back and forth in the up and down direction. The linkage component (4) includes a disc (41) sleeved on the upper end of the rotating shaft (31). The base (1) is provided with an adjustment component (5) for driving the display screen (2) to rotate to guide the flow of people after the passengers get off. The adjustment component (5) includes an annular box (51) sleeved on the surface of the rotating shaft (31) and fixedly connected to the top of the limiting rod (34). The upper surface of the annular box (51) is open, and an annular frame (52) is integrally fixed at the edge. The lower surface of the disc (41) is provided with an annular groove that matches the annular frame (52). A partition (53) is integrally fixed inside the annular box (51), and a rectangular piston plate (54) located inside the annular box (51) is fixedly connected to the lower surface of the disc (41). One side of the rectangular piston plate (54) is arc-shaped and fits against the inner wall of the annular box (51). Two symmetrically distributed installation boxes (551) are provided on the outer side of the base (1) and buried underground. A telescopic rod (552) is vertically fixed on the bottom surface of the inner wall of the installation box (551). A pedal (553) is fixedly connected to the top of the telescopic rod (552) and extends to the outside of the installation box (551). A through hole adapted to the pedal (553) is opened on the upper surface of the installation box (551). A spring (554) is sleeved on the surface of the telescopic rod (552). One end of the spring (554) is fixedly connected to the inner wall of the installation box (551) and the other end is fixedly connected to the pedal (553). The inner wall of the mounting box (551) is fixed with a pipe 1 (555), and a one-way valve 1 (556) is installed at the lower end of the pipe 1 (555). A pipe 2 (557) is fixed between the pipe 1 (555) and the annular box (51). A one-way valve 2 (558) is installed on the pipe 2 (557). Both pipes 2 (557) are connected to the annular box (51) and are located on opposite sides of the rectangular piston plate (54). A piston rod (559) extending into the pipe 1 (555) is vertically fixed on the lower surface of the pedal (553). A circular piston plate (560) that can move up and down along the pipe 1 (555) is fixedly connected to one end of the piston rod (559).

2. The urban rail transit train control safety device according to claim 1, characterized in that: The drive assembly (3) further includes an annular groove (35) formed on the surface of the annular movable plate (33), and an annular sleeve (36) is rotatably connected in the annular groove (35). Two symmetrically distributed extension plates (37) are integrally fixed on the surface of the annular sleeve (36). A telescopic rod (38) is fixedly connected between the extension plate (37) and the display screen (2). A spring (39) is sleeved on the surface of the telescopic rod (38). One end of the spring (39) is fixed to the surface of the extension plate (37), and the other end is fixed to the display screen (2).

3. The urban rail transit train control safety device according to claim 2, characterized in that: The linkage component (4) also includes two symmetrically distributed vertical plates (42) fixedly connected to the upper surface of the disc (41), a rectangular plate (43) slidably connected between the two vertical plates (42), an active groove (44) for the rotating shaft (31) to pass through is opened on the surface of the rectangular plate (43), two symmetrically distributed columns (45) are fixedly connected to the upper surface of the rectangular plate (43), and a cam (46) located between the two columns (45) is rotatably connected to the top of the rotating shaft (31).

4. The urban rail transit train control safety device according to claim 3, characterized in that: The linkage component (4) also includes a connecting rod (47) fixedly connected to one side of the rectangular plate (43). One end of the connecting rod (47) is fixedly connected to a support rod (48). The surface of the support rod (48) is provided with a convex groove (49). The rear surface of the display screen (2) is fixed with a convex slider that is adapted to the convex groove (49).

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