Rail transit elevated line evacuation platform terminal and station platform connecting board device

Abstract

The present invention discloses a device for connecting a rail transit elevated line evacuation platform terminal and a station platform with a ferry, which belongs to the research field of rail transit personnel emergency evacuation escape devices. The device includes: a device protection system, a ferry transmission system, an electric control system and an evacuation ferry fixing system; the device protection system is arranged at the station platform end, the ferry transmission system is arranged in the device protection system; the electric control system is arranged in the device protection system; the evacuation ferry fixing system is arranged at the evacuation platform terminal in the platform area. The present invention solves the problem of automatic overlap of the evacuation passage between the evacuation platform terminal and the platform in the station during emergency evacuation of the rail transit elevated line, and at the same time can reasonably and effectively utilize the internal space of the station platform structure, so that passengers can evacuate quickly and safely under emergency conditions.

Description

Technical Field

[0001] The invention belongs to rail transit personnel evacuation and escape equipment, and in particular, relates to a rail transit elevated line evacuation platform terminal and a station platform connecting board device. Background Art

[0002] As an important line laying method, the use of elevated urban rail transit lines has the advantages of flexible line selection and engineering economic savings, but there is also the risk of difficulty in evacuating people under sudden accidents on the viaduct. At present, setting up evacuation platforms on elevated rail transit lines has become a new engineering practice to improve line safety. For example, my country's maglev railways mostly use elevated lines. Because the bottom of the maglev train of the electromagnetic suspension system hugs the track, the elevated line track structure lacks the necessary walking space for emergency evacuation of personnel, making it difficult to evacuate personnel. For safety needs, the existing design specifications for medium and low-speed maglev railways stipulate that dedicated evacuation platforms must be set up along the elevated lines of medium and low-speed maglev railways for emergency evacuation of passengers.

[0003] However, since the current urban rail transit design specifications for the detailed design requirements of the elevated line evacuation platform are still in the early stages, after the passengers enter the elevated station area through the evacuation platform in the line section, the connection method between the evacuation platform terminal and the platform has not been specified in detail. Therefore, whether the evacuation platform station terminal and the platform can be quickly and reliably connected will become an important factor affecting whether the personnel can achieve safe evacuation. Taking the evacuation of personnel on the maglev railway elevated line as an example, when the evacuation platform is located in the middle of the double-track line, there are two main ways to connect the existing evacuation platform terminal and the platform. One is to rely on the train in the station to connect the evacuation platform terminal and the platform, that is, during evacuation, the maglev train parked in the station is used to allow passengers to enter the train from the evacuation platform and then enter the platform; the other is to rely on the movable connecting board equipped in the station, that is, during emergency evacuation, the two ends of the board are placed on the platform and the evacuation platform terminal respectively for passengers to walk. Both of these connection methods have obvious disadvantages, specifically: when using the in-station train connection, it is necessary to rely on the maglev train to stop at the platform to assist passengers in evacuation. Due to the sudden emergency evacuation, emergency dispatch of trains is difficult, time-consuming, costly, and slow to respond. It is impossible to ensure that there is a train stopping at the station for evacuation. The emergency dispatch of trains has a great impact on the operation of the entire line. If a serious power outage occurs in the maglev train power supply system, the dispatch and use of the maglev train for connection cannot be guaranteed; although the second method of manually placing the ferry board can also achieve the connection between the evacuation channel and the station platform, this connection method has a low degree of automation and poor flexibility. It is difficult to ensure the staffing in the event of an emergency. When manually setting up, it is necessary to cross the track structure of the maglev train. If the ferry board accidentally falls, it is easy to damage the fine track structure of the maglev railway (such as the geometric shape of the induction board). In addition, it is not easy to fix the two ends of the ferry board connection, and it is difficult to manually lock it. When a large number of passengers pass by, the ferry board is easy to shift under the action of the dynamic load of the crowd. Summary of the invention

[0004] In order to solve the problems of the prior art, an embodiment of the present invention provides a rail transit elevated line evacuation platform terminal and a station platform connecting a ferry. The technical solution is as follows:

[0005] Provided is a rail transit elevated line evacuation platform terminal and station platform connecting a ferry device, comprising: a device protection system, a ferry transmission system, an electric control system and an evacuation ferry fixing system; the device protection system is arranged at the station platform end, and the ferry transmission system is arranged in the device protection system; the electric control system is arranged in the device protection system; the evacuation ferry fixing system is arranged at the evacuation platform terminal in the platform area; the evacuation ferry fixing system is used to fix the ferry extending to the evacuation platform end, and the electric control system is used to control the ferry transmission system and the evacuation ferry fixing system; the device protection system provides protection for the equipment at the platform end of the rail transit elevated line evacuation platform terminal and station platform connecting a ferry device; the evacuation ferry fixing system is used for the connection between the ferry and the evacuation platform.

[0006] Furthermore, the device protection system includes an upper surface cover plate, a side panel, a bottom panel, and a bottom mounting frame; the upper surface cover plate is used to provide protection for the ferry board transmission system and the power control system during the extension and retraction of the ferry board; the upper surface cover plate is kept level with the platform plane at the platform end, and is used for pedestrians to walk; the side panel and the bottom panel are arranged inside the structure of the platform end, and are used to separate the ferry board transmission system and the power control system from the ventilation, power supply pipelines and other facilities and equipment in the platform end, and provide a dedicated working area for the ferry board transmission system and the power control system.

[0007] Furthermore, the upper surface cover plate, side panels and bottom panels in the device protection system are all made of corrosion-resistant and fire-resistant steel. The upper surface cover plate and the side panels are connected by a rotating shaft, and the upper surface cover plate can be lifted up; the side panels and the bottom panels are connected to the concrete platform of the station by bolts; the bottom panel is connected to the concrete platform structure and the steel frame by bolts; the upper part of the bottom mounting frame is connected and fixed to the equipment in the ferry transmission system and the power control system at the platform end, and the lower part of the bottom mounting frame is connected to the bottom panel by bolts.

[0008] Furthermore, the ferry transmission system includes a ferry, a telescopic transmission device, and a hydraulic limiter at the extension end;

[0009] The telescopic transmission device is arranged below the ferry board, and the telescopic transmission device is composed of a plurality of rolling wheels, and the rolling wheels are driven by electricity, and the extension and retraction of the ferry board are realized by changing the rotation direction of the rolling wheels; the bottom of the telescopic transmission device is connected to the bottom mounting frame;

[0010] The extended end hydraulic limiter is installed at the platform end and is located at the exit position of the ferry; the extended end hydraulic limiter consists of two parts: an L-shaped pressure strip located at the front end of the upper surface cover plate and a hydraulic jack at the front end of the telescopic transmission device; the lower part of the hydraulic jack is fixed to the station platform structure by bolts, and the upper part of the hydraulic jack is a contact plane that can be raised and lowered; when the extended end hydraulic limiter is started, the hydraulic jack under the ferry rises and contacts the ferry, and when the ferry extends and reaches the designated position inside the evacuation platform terminal, the extended end hydraulic limiter will apply a vertical force to the ferry to limit the displacement of the ferry at the evacuation platform end and the platform end; when the ferry is retracted from the evacuation platform terminal to the platform end, the hydraulic jack is lowered, and the extended end hydraulic limiter will release the force applied to the ferry and the limiting effect on the ferry, and the ferry can continue to move telescopically, and the telescopic transmission retracts the ferry.

[0011] Furthermore, during emergency evacuation, after the device is activated, the ferry board will extend from the inside of the platform end, and the extended end of the ferry board will pass over the maglev train track and connect with the evacuation platform terminal; the upper and lower surfaces of the ferry board are rough surfaces, and friction is generated by contact with the outer surface of the lower rolling wheel to transmit the ferry board to the evacuation platform terminal; after the evacuation ferry board fixing system releases the lock on the ferry board position, the ferry board is retracted from the evacuation platform terminal.

[0012] Further, the power control system includes a power box, a position sensor and a control box;

[0013] The power supply box is installed in the elevated line evacuation platform terminal and the station platform connecting the crossing board device, and is used to connect an independent external power supply and provide power to the equipment components of the elevated line evacuation platform terminal and the station platform connecting the crossing board device;

[0014] The position sensor adopts a through-beam photoelectric sensor. A group of position sensors consists of a transmitter, a receiver and a detection circuit. The rail transit elevated line evacuation platform terminal and the station platform connecting the ferry device include four groups of position sensors, which are respectively arranged inside the platform end device, the exit of the platform end device, the evacuation platform terminal connection entrance and inside the evacuation platform terminal; the position sensor is used to detect the movement position of the ferry during the extension and retraction process of the ferry. When the ferry reaches the specified retraction or extension position, the ferry will block the light emitted by the transmitter, change the state of the receiver light signal, and thus form a ferry position signal in the detection circuit; the position sensor transmits the detected ferry position signal into the control box;

[0015] The control box controls the start and stop of the telescopic transmission, the extension end hydraulic limiter, and the insertion end electromagnetic limiter by receiving the start and stop signals of the overall device from the station main control room and the signals fed back by the position sensor.

[0016] Furthermore, the evacuation bridge fixing system includes an evacuation platform pedal, elastic end spikes, and an insertion end electromagnetic stopper;

[0017] The evacuation platform pedal is provided with a wedge-shaped groove inside, and the ferry is inserted into the wedge-shaped groove after being extended; the evacuation platform pedal and its wedge-shaped groove are made of steel;

[0018] The elastic end spikes are evenly arranged on the upper surface of the inner part of the wedge-shaped groove of the evacuation platform pedal. The elastic end spikes are cone-shaped. The bottom of the elastic end spikes is connected and fixed to the upper inner surface of the wedge-shaped groove of the terminal of the evacuation platform by bolts, and the top angle thereof is inclined at a certain angle to the direction in which the ferry extends and moves. The elastic end spikes are made of composite materials and are elastic.

[0019] The insertion end electromagnetic limiter is installed at the entrance position of the wedge-shaped groove at the terminal of the evacuation platform; the insertion end electromagnetic limiter consists of two parts: an L-shaped steel in contact with the upper surface of the ferry board and an electromagnet located below the opening of the wedge-shaped groove; when the ferry board extends into and reaches the specified position in the wedge-shaped groove, the insertion end electromagnetic limiter is started, and the electromagnet generates electromagnetic force after being energized, which attracts the ferry board and the L-shaped steel above, and the elastic end thorns will contact the upper surface of the ferry board, thereby increasing the friction between the ferry board and the wedge-shaped groove, and then increasing the limiting force on the longitudinal displacement of the insertion end of the ferry board, thereby limiting the displacement of the ferry board at the terminal of the evacuation platform; when the ferry board is retracted, the insertion end electromagnetic limiter is closed, and the magnetic attraction force disappears after the electromagnet is powered off, the ferry board is separated from the wedge-shaped groove and the elastic end thorns, and the ferry board moves and retracts.

[0020] The technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0021] The present invention provides a rail transit elevated line evacuation platform terminal and station platform connecting a crossing board device. When the rail transit elevated line needs to urgently evacuate passengers through an evacuation platform arranged between double lines, the retractable connecting crossing board device installed in the station platform structure and the evacuation platform terminal can be quickly started and overlap the walking passage between the evacuation platform and the platform. The device can not only meet the function of connecting the evacuation platform terminal and the platform during emergency evacuation, but also enable passengers to safely pass through the evacuation platform and evacuate to the safety exit of the station, thereby improving the passenger evacuation efficiency under emergency evacuation conditions of the elevated station, and can reasonably and effectively utilize the internal space of the platform structure, avoid the limitations of manually overlapping the crossing board and using the parked trains in the station for evacuation, and improve the automation level of rail transit evacuation and rescue facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of a rail transit elevated line evacuation platform terminal and a station platform connecting a ferry device according to an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of a device protection system and a ferry transmission system according to an embodiment of the present invention;

[0025] Figure 3 is a schematic diagram of an evacuation platform terminal fixing system according to an embodiment of the present invention;

[0026] Figure 4 It is a working flow chart of the ferry extension of an embodiment of the present invention;

[0027] Figure 5 It is a work flow chart of the ferry board retraction in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] The present invention provides a rail transit elevated line evacuation platform terminal and station platform connecting board device, the device can be used on the maglev railway elevated line, can also be used on other rail transit lines with similar requirements. Figure 1 and Figure 2 , including: device protection system, ferry transmission system, power control system and evacuation platform end fixing system;

[0030] The two sides of the train 1 are respectively the platform end 2 and the evacuation platform platform terminal 3, the device protection system is arranged at the station platform end, the ferry transmission system is arranged in the device protection system; the power control system is arranged in the device protection system; the evacuation ferry fixing system is arranged at the evacuation platform terminal in the platform area; the evacuation ferry fixing system is used to fix the ferry extending to the evacuation platform end, and the power control system is used to control the ferry transmission system and the evacuation ferry fixing system; the device protection system provides protection for the equipment of the rail transit elevated line evacuation platform terminal and the station platform connecting the ferry device at the platform end; the evacuation ferry fixing system is used for the connection between the evacuation ferry and the evacuation platform.

[0031] For further information, see Figure 1 The device protection system includes an upper surface cover plate 4, a side panel 5, a bottom panel 6, and a bottom mounting frame 7; the upper surface cover plate 4 is used to provide protection for the ferry transmission system and the power control system during the telescopic use of the evacuation ferry, and the upper surface cover plate 4 is kept level with the platform plane at the platform end for pedestrians to walk; the side panel 5 and the bottom panel 6 are arranged inside the structure of the platform end 2, and are used to separate the ferry transmission system, the power control system and the ventilation, power supply pipelines and other facilities and equipment in the platform end 2, and provide a dedicated working area for the ferry transmission system and the power control system.

[0032] Specifically, the upper surface cover plate 4, the side panel 5 and the bottom panel 6 in the device protection system are all made of corrosion-resistant and fire-resistant steel. The upper surface cover plate 4 and the side panel 5 are connected by a rotating shaft, and the upper surface cover plate 4 can be lifted up; the side panel 5 and the bottom panel 6 are connected to the concrete platform of the station by bolts; the bottom panel 6 is connected to the concrete platform structure and the steel frame by bolts; the upper part of the bottom mounting frame 7 is connected and fixed to the equipment in the ferry transmission system and the power control system at the platform end, and the lower part of the bottom mounting frame 7 is connected to the bottom panel 6 by bolts.

[0033] For further information, see Figure 2 The ferry transmission system includes a ferry 8, a telescopic transmission device 9, and an extension end hydraulic limiter 10;

[0034] The telescopic transmission device 9 is arranged below the ferry board 8, and the telescopic transmission device 9 is composed of a plurality of rolling wheels 11. The rolling wheels 11 are electrically driven, and the extension and retraction of the ferry board 8 are realized by changing the rotation direction of the rolling wheels 11; the bottom of the telescopic transmission device 9 is connected to the bottom mounting frame 7;

[0035] The extended end hydraulic limiter 10 is installed at the platform end 2, located at the exit position of the ferry 8; the extended end hydraulic limiter 10 is composed of two parts: an L-shaped pressure strip located at the front end of the upper surface cover plate 4 and a hydraulic jacking device at the front end of the telescopic transmission device 9; the lower part of the hydraulic jacking device is fixed to the station platform structure by bolts, and the upper part of the hydraulic jacking device is a contact plane that can be raised and lowered; when the extended end hydraulic limiter 10 is started, the hydraulic jacking device under the ferry 8 rises and contacts the ferry 8, and when the ferry 8 is extended When it reaches the designated position inside the evacuation platform terminal 3, the extended end hydraulic limiter 10 will apply a vertical force to the ferry board 8 to limit the displacement of the ferry board 8 between the evacuation platform end 3 and the platform end 2; when the ferry board 8 is retracted from the evacuation platform terminal 3 to the platform end 2, the hydraulic jack is lowered, and the extended end hydraulic limiter 10 will release the force applied to the ferry board 8 and the limiting effect on the ferry board 8, and the ferry board 8 can continue to telescopically move, and the telescopic transmission 9 retracts the ferry board 8.

[0036] Furthermore, during emergency evacuation, after the ferry device connecting the rail transit elevated line evacuation platform terminal and the station platform is started, the ferry 8 will extend from the inside of the platform end 2, and the extended end of the ferry 8 will pass over the top of the maglev train track and connect with the evacuation platform terminal 3; the upper and lower surfaces of the ferry 8 are rough surfaces, and the friction force generated by contacting with the outer surface of the lower rolling wheel causes the ferry 8 to be transmitted to the evacuation platform terminal 3; after the evacuation ferry fixing system releases the lock on the position of the ferry 8, the ferry 8 is retracted from the evacuation platform terminal 3.

[0037] For further information, see Figure 3 The evacuation ferry fixing system includes an evacuation platform pedal, an elastic end spike 14, and an insertion end electromagnetic stopper 13;

[0038] The evacuation platform pedal is provided with a wedge-shaped groove 12 inside, and the evacuation ferry is inserted into the wedge-shaped groove after being extended; the evacuation platform pedal and its wedge-shaped groove are made of steel;

[0039] The elastic end spikes 14 are evenly arranged on the upper surface of the inner part of the wedge-shaped groove 12 of the evacuation platform pedal. The elastic end spikes 14 are cone-shaped. The bottom of the elastic end spikes 14 and the upper inner surface of the wedge-shaped groove 12 of the evacuation platform terminal are connected and fixed to the wedge-shaped groove 12 by bolts, and the top angle thereof is inclined at a certain angle toward the direction in which the evacuation ferry extends into the movement. The elastic end spikes 14 are made of composite materials and are elastic.

[0040] The insertion end electromagnetic limiter 14 is installed at the entrance position of the wedge-shaped groove at the terminal of the evacuation platform; the insertion end electromagnetic limiter 14 consists of two parts: an L-shaped steel in contact with the upper surface of the ferry board and an electromagnet located below the opening of the wedge-shaped groove; when the ferry board 8 extends into and reaches the specified position in the wedge-shaped groove 12, the insertion end electromagnetic limiter 14 is started, and the electromagnet generates electromagnetic force after being energized, which attracts the ferry board and the L-shaped steel above, and the elastic end thorn 14 will contact the upper surface of the ferry board 8, thereby increasing the friction between the ferry board 8 and the wedge-shaped groove 12, and then increasing the limiting force on the longitudinal displacement of the insertion end of the ferry board 8, thereby limiting the displacement of the ferry board 8 at the terminal of the evacuation platform; when the ferry board 8 is retracted, the insertion end electromagnetic limiter 13 is closed, and the magnetic attraction force disappears after the electromagnet is powered off, the evacuation ferry board is separated from the wedge-shaped groove 12 and the elastic end thorn, and the ferry board moves and retracts.

[0041] For further information, see Figure 2 The power control system includes a power supply box 15, a control box 16 and a position sensor 17; the power supply box 15 is installed in the elevated line evacuation platform terminal and the station platform connecting the crossing board device, and is used to connect an independent external power supply and provide power for the equipment components of the elevated line evacuation platform terminal and the station platform connecting the crossing board device;

[0042] The position sensor 17 adopts a through-beam photoelectric sensor. A group of position sensors consists of a transmitter, a receiver and a detection circuit. The rail transit elevated line evacuation platform terminal and the station platform connecting the ferry device include four groups of position sensors, which are respectively arranged inside the platform end device, the exit of the platform end device, the evacuation platform terminal connection entrance and the inside of the evacuation platform terminal; the position sensor 17 is used to detect the movement position of the ferry 8 during the extension and retraction process of the ferry 8. When the ferry 8 reaches the specified retraction or extension position, the ferry 8 will block the light emitted by the transmitter and change the state of the receiver light signal, thereby forming a ferry position signal in the detection circuit; the position sensor 17 transmits the detected ferry position signal into the control box 16;

[0043] The control box 16 controls the start and stop of the telescopic transmission 9, the extension end hydraulic limiter 10, and the insertion end electromagnetic limiter 13 by receiving the start and stop signals of the overall device from the station main control room and the feedback signals of the position sensor 17.

[0044] In this embodiment, the device protection system, the ferry transmission system, the power control system and the evacuation ferry fixing system are further described as follows:

[0045] (I) Device protection system

[0046] The device protection system consists of four parts: the upper surface cover plate, the side panels, the bottom panels and the bottom mounting frame. The function of the device protection system is to provide protection for the device of the present invention, the ferry transmission device, and to connect and fix it with the station platform structure during the telescopic use of the evacuation ferry. (1) The upper surface cover plate is a metal protection device that can be kept in a closed state when the telescopic ferry is in use. In the closed state, the upper surface cover plate and the station platform surface are kept at the same horizontal height to ensure that the platform surface is flat and convenient for passengers to pass through during evacuation. When the telescopic ferry device needs to be inspected and repaired, the upper surface cover plate can be opened to facilitate the replacement of internal parts of the device and equipment maintenance. (2) The side panels and the bottom panels refer to the panels used to separate the transmission device from other facilities and equipment in the platform inside the platform structure. Its function is to provide an independent working space for the transmission device. (3) The bottom mounting frame provides a fixing function for the ferry transmission device system. The bottom mounting frame, the bottom panels and the internal structure of the platform are connected by bolts. Its function is to connect and fix the ferry transmission device, the power control box, etc.

[0047] (II) Transmission system

[0048] The ferry transmission system consists of a ferry, a telescopic transmission device, and a hydraulic limiter at the extended end. The function of the ferry transmission system is to realize the extension and locking of the ferry. (1) The connecting ferry can be made of composite materials, which are light in weight and have sufficient strength and rigidity to ensure that it can bear the dynamic load of the crowd during emergency evacuation, and have corrosion resistance and deformation resistance. During emergency evacuation, after the device is activated, the ferry will extend from the inside of the platform, and its extended end will pass over the top of the maglev train track and connect to the evacuation platform terminal, and the hydraulic limiter will be used to fix the ferry and the platform.

[0049] Fixed. The lower surface of the ferry board is a rough surface, which can generate friction by contacting with the outer surface of the lower rolling wheel to transmit the ferry board to the terminal of the evacuation platform. (2) The telescopic transmission device is composed of a number of rolling wheels located under the ferry board. The rolling wheels are electrically driven. The extension and retraction of the ferry board can be achieved by changing the rotation direction of the wheels. The bottom of the telescopic transmission device is connected to the bottom mounting frame. (3) The extension end hydraulic limiter is installed at the platform end, located at the exit position of the ferry transmission device; the extension end hydraulic limiter is composed of two parts: an L-shaped pressure strip located at the front end of the upper surface flip cover and a hydraulic jack at the front end of the telescopic transmission device. The lower part of the hydraulic jack is fixed to the station platform structure by bolts, and the upper part of the hydraulic jack is a liftable contact plane; when the limiter is started, the hydraulic jack under the ferry board rises and contacts the ferry board, and when the ferry board is extended and reaches the specified position inside the evacuation platform terminal, the hydraulic limiter at the extended end will apply a vertical force to the ferry board to limit the displacement of the ferry board at the evacuation platform end and the platform end; when the ferry board is retracted from the evacuation platform terminal to the platform section, the hydraulic jack is lowered, and the hydraulic limiter at the extended end will release the force applied to the ferry board and the limiting effect on the ferry board, and the ferry board can continue to telescope and move, and the telescopic transmission retracts the ferry board.

[0050] (III) Power control system

[0051] The power control system of this device consists of a power box, a position sensor and a control box. (1) The power box is installed inside the device and is used to connect to an external power source and provide power to the equipment components of this device. The power supply device adopts an independent emergency power supply system to ensure that it can still operate under the condition of power outage of the conventional power system. (2) The position sensor may be a through-beam photoelectric sensor. A group of sensors is composed of a transmitter, a receiver and a detection circuit. The device includes four groups of position sensors, which are respectively arranged inside the device at the platform end, at the outlet of the device at the platform end, at the entrance of the evacuation platform terminal and inside the evacuation platform terminal. The sensor is used to detect the movement position of the apron during the extension and retraction process. When the apron reaches the designated retracted or extended position, the apron will block the light emitted by the transmitter and change the state of the receiver light signal, thereby forming a apron position signal in the detection circuit. The position sensor transmits the detected apron position signal into the control box. (3) The control box is composed of a telescopic apron motion control program and hardware equipment. Its function is to control the start and stop of the telescopic transmission and the hydraulic limiter by receiving the start and stop signals of the overall device in the station main control room and the signals fed back by the position sensor, so that the evacuation apron can achieve the following actions, see Figure 4-5, including: ① Start of ferry extension - after the control box receives the "extension start signal", it releases the hydraulic limiter, so that the rolling wheel rotates and drives the ferry to move toward the terminal of the evacuation platform; ② Stop of ferry extension - when the control box receives the "extension stop signal", it indicates that the ferry has reached a reliable connection position with the terminal of the evacuation platform, then the rolling wheel is stopped, the platform section and the evacuation platform end limiter are started, and the ferry is locked; ③ Start of ferry retraction - after the control box receives the "retraction start signal", it releases the limit of the ferry, so that the rolling wheel rotates in the opposite direction and drives the ferry to move toward the platform; ④ Stop of ferry retraction - when the control box receives the "extension stop signal", it indicates that the ferry has reached the designated storage position in the platform, then the rolling wheel is stopped, and the hydraulic limiters at the platform end and the evacuation platform end are started to lock the ferry again.

[0052] (IV) Evacuation bridge fixing system

[0053] The evacuation platform fixing system refers to a series of devices installed at the terminal of the evacuation platform for connecting the platform to the evacuation platform terminal. Specifically, it includes an evacuation platform pedal with a wedge-shaped slot, elastic end spikes in the slot, and an insertion end electromagnetic limiter. (1) The evacuation platform pedal with a wedge-shaped slot refers to the pedal at the terminal of the evacuation platform platform that is provided with a wedge-shaped slot on the side close to the platform, so that the platform can be inserted into the evacuation platform pedal when it is extended. Taking into account the slight deformation of the lower part of the extended end of the platform due to its own weight during the extension and retraction process, the opening at the connection position between the evacuation platform terminal and the platform is designed to be wedge-shaped to ensure that the extended part of the platform can be smoothly inserted into the evacuation platform. (2) An insertion end electromagnetic limiter is installed on the outside of the evacuation platform terminal to limit the displacement of the platform at the evacuation platform terminal. (3) The elastic end spike is set on the upper surface of the inner groove of the evacuation platform pedal. When the cross-board is extended to the specified position, the insertion end electromagnetic limiter is activated, the cross-board is subjected to vertical pressure, and the elastic end spike will increase the friction between the cross-board and the slot, thereby increasing the restriction of the longitudinal displacement of the cross-board at the insertion end. When the cross-board is retracted, the displacement restriction of the cross-board by the insertion end electromagnetic limiter is released, the displacement restriction force between the two is cancelled, the elastic end spike will separate from the cross-board, and the two can move relative to each other, and the cross-board is retracted.

[0054] The technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0055] The present invention provides a rail transit elevated line evacuation platform terminal and station platform connecting a crossing board device. When the rail transit elevated line needs to urgently evacuate passengers through an evacuation platform arranged between double lines, the retractable connecting crossing board device installed in the station platform structure and the evacuation platform terminal can be quickly started and overlap the walking passage between the evacuation platform and the platform. The device can not only meet the function of connecting the evacuation platform terminal and the platform during emergency evacuation, but also enable passengers to safely pass through the evacuation platform and evacuate to the safety exit of the station, thereby improving the passenger evacuation efficiency under emergency evacuation conditions of the elevated station, and can reasonably and effectively utilize the internal space of the platform structure, avoid the limitations of manually overlapping the crossing board and using the parked trains in the station for evacuation, and improve the automation level of rail transit evacuation and rescue facilities.

[0056] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the present invention through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art shall be within the scope of protection of the claims attached to the present invention without departing from the spirit and scope of the present invention.

Claims

1. A rail transit elevated line evacuation platform terminal and station platform connecting board device, characterized in that: include: Device protection system, ferry transmission system, power control system and evacuation ferry fixing system; The device protection system is arranged at the platform end of the station, and the ferry transmission system is arranged in the device protection system; the power control system is arranged in the device protection system; the evacuation ferry fixing system is arranged at the evacuation platform terminal in the platform area; the evacuation ferry fixing system is used to fix the ferry extending to the evacuation platform terminal, and the power control system is used to control the ferry transmission system and the evacuation ferry fixing system; the device protection system provides protection for the equipment at the platform end of the rail transit elevated line evacuation platform terminal and the station platform connecting the ferry device; the evacuation ferry fixing system is used for the connection between the ferry and the evacuation platform.

2. The rail transit elevated line evacuation platform terminal and station platform connecting board device as claimed in claim 1, characterized in that: The device protection system includes an upper surface cover, a side panel, a bottom panel, and a bottom mounting frame; the upper surface cover is used to provide protection for the ferry board transmission system and the power control system during the extension and retraction of the ferry board; the upper surface cover is kept level with the platform plane at the platform end for pedestrians to walk; the side panel and the bottom panel are arranged inside the structure of the platform end, and are used to separate the ferry board transmission system and the power control system from the ventilation and power supply pipeline facilities in the platform end, and provide a dedicated working area for the ferry board transmission system and the power control system.

3. The rail transit elevated line evacuation platform terminal and station platform connecting bridge device as claimed in claim 2, characterized in that: The upper surface cover plate, side panels and bottom panels in the device protection system are all made of corrosion-resistant and fire-resistant steel. The upper surface cover plate and the side panels are connected by a rotating shaft, and the upper surface cover plate can be lifted up; the side panels and the bottom panels are connected to the concrete platform of the station by bolts; the bottom panel and the concrete platform structure are connected to the steel frame by bolts; the upper part of the bottom mounting frame is connected and fixed to the equipment in the ferry transmission system and the power control system at the platform end, and the lower part of the bottom mounting frame is connected to the bottom panel by bolts.

4. The rail transit elevated line evacuation platform terminal and station platform connecting bridge device as claimed in claim 3, characterized in that: The ferry transmission system includes a ferry, a telescopic transmission device, and a hydraulic limiter at the extension end; The telescopic transmission device is arranged below the ferry board, and the telescopic transmission device is composed of a plurality of rolling wheels, and the rolling wheels are driven by electricity, and the extension and retraction of the ferry board are realized by changing the rotation direction of the rolling wheels; the bottom of the telescopic transmission device is connected to the bottom mounting frame; The extended end hydraulic limiter is installed at the platform end and is located at the exit position of the ferry; the extended end hydraulic limiter consists of two parts: an L-shaped pressure strip located at the front end of the upper surface cover plate and a hydraulic jack at the front end of the telescopic transmission device; the lower part of the hydraulic jack is fixed to the station platform structure by bolts, and the upper part of the hydraulic jack is a contact plane that can be raised and lowered; when the extended end hydraulic limiter is started, the hydraulic jack under the ferry rises and contacts the ferry, and when the ferry extends and reaches the designated position inside the evacuation platform terminal, the extended end hydraulic limiter will apply a vertical force to the ferry to limit the displacement of the ferry at the evacuation platform terminal and the platform end; when the ferry is retracted from the evacuation platform terminal to the platform end, the hydraulic jack is lowered, and the extended end hydraulic limiter will release the force applied to the ferry and the limiting effect on the ferry, and the ferry can continue to move telescopically, and the telescopic transmission retracts the ferry.

5. The rail transit elevated line evacuation platform terminal and station platform connecting bridge device as claimed in claim 4, characterized in that: During emergency evacuation, after the device is activated, the ferry board will extend from the inside of the platform end, and the extended end of the ferry board will pass over the top of the maglev train track and connect with the evacuation platform terminal; the upper and lower surfaces of the ferry board are rough surfaces, and friction is generated by contact with the outer surface of the lower rolling wheel to transmit the ferry board to the evacuation platform terminal; after the evacuation ferry board fixing system releases the lock on the ferry board position, the ferry board is retracted from the evacuation platform terminal.

6. The rail transit elevated line evacuation platform terminal and station platform connecting bridge device as claimed in claim 5, characterized in that: The evacuation bridge fixing system includes an evacuation platform pedal, elastic end spikes, and an insertion end electromagnetic limiter; The evacuation platform pedal is provided with a wedge-shaped groove inside, and the ferry is inserted into the wedge-shaped groove after being extended; the evacuation platform pedal and its wedge-shaped groove are made of steel; The elastic end thorns are evenly arranged on the upper surface of the inner part of the wedge-shaped groove, the elastic end thorns are cone-shaped, the bottom of the elastic end thorns is fixed to the upper inner surface of the wedge-shaped groove by bolts, and the top angle of the elastic end thorns is inclined at a certain angle to the direction in which the ferry plate extends and moves; the elastic end thorns are made of composite materials and are elastic; The insertion end electromagnetic limiter is installed at the entrance position of the wedge-shaped groove; the insertion end electromagnetic limiter consists of two parts: an L-shaped steel in contact with the upper surface of the ferry board and an electromagnet located below the opening of the wedge-shaped groove; when the ferry board extends into and reaches the specified position in the wedge-shaped groove, the insertion end electromagnetic limiter is started, and the electromagnet generates electromagnetic force after being energized, which attracts the ferry board and the L-shaped steel above, and the elastic end thorns will contact the upper surface of the ferry board, thereby increasing the friction between the ferry board and the wedge-shaped groove, and then increasing the limiting force on the longitudinal displacement of the insertion end of the ferry board, thereby limiting the displacement of the ferry board at the terminal of the evacuation platform; when the ferry board is retracted, the insertion end electromagnetic limiter is closed, and the magnetic attraction force disappears after the electromagnet is powered off, the ferry board is separated from the wedge-shaped groove and the elastic end thorns, and the ferry board moves and retracts.

7. The rail transit elevated line evacuation platform terminal and station platform connecting bridge device as claimed in claim 6, characterized in that: The power control system includes a power box, a position sensor and a control box; The power supply box is installed in the elevated line evacuation platform terminal and the station platform connecting the crossing board device, and is used to connect an independent external power supply and provide power to the equipment components of the elevated line evacuation platform terminal and the station platform connecting the crossing board device; The position sensor adopts a through-beam photoelectric sensor. A group of position sensors consists of a transmitter, a receiver and a detection circuit. The rail transit elevated line evacuation platform terminal and the station platform connecting the ferry device include four groups of position sensors, which are respectively arranged inside the platform end device, the exit of the platform end device, the evacuation platform terminal connection entrance and inside the evacuation platform terminal; the position sensor is used to detect the movement position of the ferry during the extension and retraction process of the ferry. When the ferry reaches the specified retraction or extension position, the ferry will block the light emitted by the transmitter, change the state of the receiver light signal, and thus form a ferry position signal in the detection circuit; the position sensor transmits the detected ferry position signal to the control box; The control box controls the start and stop of the telescopic transmission, the extension end hydraulic limiter, and the insertion end electromagnetic limiter by receiving the start and stop signals of the overall device from the station main control room and the signals fed back by the position sensor.

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