An automatic gangway for railway vehicles

Abstract

The present invention discloses an automatic gangway for railway vehicles, which comprises two sets of split gangway structures. The split gangway structure includes a diaphragm, a framework, a driving mechanism and a control system. The diaphragm is installed on the framework. The driving mechanism includes a locking tongue, a locking drive motor, a telescopic mechanism and a chassis. The chassis is installed in the framework. The locking tongue, the locking drive motor and the telescopic mechanism are installed on the chassis. The locking tongue is connected to the locking drive motor and is driven by the locking drive motor to act. The telescopic mechanism and the locking drive motor are electrically connected to the control system. The diaphragm includes a canvas, a docking frame, a car body connection frame, a sealing strip and a guide pin. Installation holes and guide holes are provided on the sealing strip. Compared with the prior art, the present invention can realize automatic coupling and automatic uncoupling, reduce labor and tooling costs, greatly shorten the vehicle formation and disassembly time, and improve the sealing effect of the sealing strip.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit, and particularly relates to an automatic gangway for railway vehicles. Background Art

[0002] The gangway device, also called the windshield device, is located at the connection of two carriages of a rail locomotive vehicle and is the connecting part of the passage between two vehicles. It has functions such as good wind prevention, dust prevention, sound insulation, and heat insulation, enabling passengers to safely pass between trains. The locomotive gangway is divided into a split gangway and a single-piece gangway. Among them, the split gangway is composed of two parts with the same structure connected together through a docking frame, and the single-piece gangway is composed of an integral structure. The gangway mainly consists of components such as a bellows, a pedal, a crossover plate, side guards, a top guard, a mounting frame, and a docking frame. The function of the gangway is to provide a standing and passing space for passengers between adjacent two carriages, can reduce external noise and heat transfer, and as a deformable area inside the whole train, can provide a recoverable deformation ability when the train passes through a curve.

[0003] Existing gangways all adopt a mechanical connection structure, that is, the gangway is mechanically installed between two vehicles during vehicle formation, and the traditional gangway is a fixed structure, with cumbersome installation and disassembly. When uncoupling or coupling, at least 2 workers are required to use special tooling to complete, and the sealing effect during coupling needs to be improved.

[0004] In view of this, an automatic gangway for railway vehicles is specifically proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic gangway for railway vehicles. Aiming at the problem of cumbersome installation and disassembly of the traditional electric locomotive gangway, automatic coupling and automatic uncoupling are realized through a control system, reducing labor and tooling costs, greatly shortening the vehicle formation and uncoupling time, and at the same time improving the sealing effect after coupling.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions:

[0007] An automatic gangway for railway vehicles includes two sets of gangway split structures. The gangway split structure includes a diaphragm, a framework, a driving mechanism, and a control system. The diaphragm is installed on the framework. The driving mechanism includes a locking tongue, a locking drive motor, a telescopic mechanism, and a chassis. The chassis is installed in the framework. The locking tongue, the locking drive motor, and the telescopic mechanism are installed on the chassis. The locking tongue is connected to the locking drive motor and is driven by the locking drive motor. The telescopic mechanism and the locking drive motor are electrically connected to the control system. The diaphragm includes a canvas, a docking frame, a vehicle body connection frame, a sealing strip, and a guide pin. The docking frame and the vehicle body connection frame are respectively arranged at both ends of the canvas. The vehicle body connection frame is connected to the framework. The sealing strip and the guide pin are arranged on the docking frame. The sealing strip is provided with a mounting hole and a guide hole. The guide pin is arranged in the mounting hole and inserted into the guide hole of the other gangway split structure. The guide pin is detachably connected to the guide hole.

[0008] In a preferred embodiment, the telescopic mechanism includes a servo motor and an electric cylinder. The electric cylinder is connected to the servo motor and is driven by the servo motor.

[0009] In a preferred embodiment, the framework includes a mounting framework and a mounting bracket. The mounting bracket is arranged on the mounting framework. The diaphragm is installed on the mounting bracket.

[0010] In a preferred embodiment, the control system includes a communication module, a control module, an execution module, and a detection module. The execution module and the detection module are electrically connected to the telescopic mechanism and the locking drive motor. The communication module, the execution module, and the detection module are electrically connected to the control module.

[0011] In a preferred embodiment, the gangway split structure includes two sets of the driving mechanisms.

[0012] In a preferred embodiment, the guide pin includes a guide cylinder and a movable pin. The guide cylinder is provided with a plurality of openings which are evenly distributed around the circumference of the guide cylinder. A clamping block is arranged in each opening. The top side of the clamping block is connected to the hole wall of the opening by a steel sheet. The clamping block is provided with a jacking protrusion. A plurality of guide strips are arranged on the inner wall of the guide cylinder along its axial direction. The positions of the openings correspond to the positions of the guide strips. The movable pin is arranged in the guide cylinder. A plurality of guide grooves are arranged on the surface of the movable pin. The plurality of guide strips and the plurality of guide grooves are in one-to-one correspondence and cooperation. A limiting groove corresponding to the jacking protrusion is arranged on the guide groove. The guide cylinder is fixedly arranged in the mounting hole and inserted into the guide hole of the split structure of the other through-channel. A first driving member is arranged in the mounting hole, and a second driving member is arranged in the guide hole. The first driving member and the second driving member are used to drive the movable pin to act. Clamping grooves corresponding to the plurality of clamping blocks are arranged on the hole wall of the guide hole.

[0013] In a preferred embodiment, the first driving member and the second driving member are arranged as electromagnets, and the movable pin is made of a magnetic material.

[0014] In a preferred embodiment, a clamping protrusion is arranged on the side of the clamping block.

[0015] Compared with the prior art, an automatic pipe channel of a railway vehicle according to the present invention is composed of two split structures of through-channels, which are respectively installed on two carriages. Each set includes a folding shed, a framework, a driving mechanism and a control system. The folding shed is installed on the framework, providing a passage space for passengers and having functions such as wind prevention, dust prevention, sound insulation and heat insulation. The driving mechanism is composed of a locking tongue, a locking driving motor, a telescopic mechanism and a chassis. The chassis is installed inside the framework. The locking tongue is connected to the locking driving motor and is driven by it to act. Both the telescopic mechanism and the locking driving motor are electrically connected to the control system and receive instructions from the control system to complete various operations.

[0016] In actual operation, when the train needs to be coupled, the staff only need to operate the one-key coupling function of the control system on the display panel, and the docking frame in the folding shed will be automatically unlocked. Immediately afterwards, the telescopic mechanism of the driving mechanism guides the folding shed to extend forward. When the front and rear split structures of the through-channels of the two carriages come into contact with each other, the two split structures of the through-channels can be accurately closed and docked. At this time, the sensor will trigger a signal to confirm that the docking is completed. Immediately afterwards, the locking tongue of the driving mechanism in the folding shed is automatically locked by the motor, and the telescopic mechanism automatically retracts, so as to realize the safe passage of internal personnel. The whole process is fast and efficient, greatly improving the efficiency and convenience of train coupling.

[0017] After the coupler is completed, the guiding pin is inserted into the guiding hole to realize the connection between the two sealing strips. Since the guiding pin is arranged in the mounting hole and the guiding hole and is not fixedly connected to the docking frame, that is, it is completely located between the two sealing strips, which is conducive to adapting to the deformation of the sealing strip, thereby facilitating the sealing strip to produce a good enough sealing effect.

[0018] When the gangway needs to be uncoupled, the one-key uncoupling function of the control system is also operated through the display panel. The docking frame in the accordion during the coupled state is automatically unlocked, the telescopic mechanism is pushed out and connected to the accordion, driving the accordion to retract. At the same time, the motor of the driving mechanism locks the locking tongue automatically, making the gangway in the retracted state and preventing people from passing through.

[0019] An automatic gangway for railway vehicles of the present invention has an overall technical solution with automatic coupling and uncoupling functions, which changes the situation of traditional gangways relying on manual operation and realizes intelligent control. The docking principle of its extension and retraction combines a precise mechanical structure with a control system to ensure the accuracy and stability of the coupling and uncoupling processes. This automatic gangway can complete automatic coupling and uncoupling operations on a certain curved track, which has strong adaptability to the complex track conditions in railway transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of an automatic gangway for railway vehicles according to the present invention.

[0021] Figure 2 is a schematic structural diagram of the framework of an automatic gangway for railway vehicles according to the present invention.

[0022] Figure 3 is a schematic structural diagram of the driving mechanism of an automatic gangway for railway vehicles according to the present invention.

[0023] Figure 4 is a schematic structural diagram of the accordion of an automatic gangway for railway vehicles according to the present invention.

[0024] Figure 5 is a schematic structural diagram of the arrangement of the guiding pin of an automatic gangway for railway vehicles according to the present invention.

[0025] Figure 6 is Figure 5 an enlarged structural diagram of part A in

[0026] Figure 7 is a schematic structural diagram of the guiding pin of an automatic gangway for railway vehicles according to the present invention.

[0027] Figure 8 The present invention relates to a flowchart of the automatic coupling control of an automatic gangway for railway vehicles.

[0028] Figure 9 The present invention relates to an automatic decoupling control flowchart for an automatic gangway of a railway vehicle.

[0029] Gangway split structure 1; folding hood 2; awning cloth 3; docking frame 4; car body connection frame 5; sealing strip 6; mounting hole 7; first driving member 8; guiding hole 9; second driving member 10; guiding pin 11; guiding cylinder 12; opening 13; clamping block 14; steel sheet 15; abutting projection 16; guiding strip 17; clamping projection 18; movable pin 19; guiding groove 20; limiting groove 21; framework 22; mounting framework 23; mounting bracket 24; driving mechanism 25; servo motor 26; electric cylinder 27; locking tongue 28; locking driving motor 29; underframe 30; control system 31; clamping groove 32; magnetic attraction plate 33; telescopic electromagnet 34. Specific embodiments

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] This specific embodiment is only an interpretation of the present invention and does not limit the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0032] As Figures 1 to 9 shown, an automatic gangway for a railway vehicle includes two sets of gangway split structures 1. The gangway split structure 1 includes a folding hood 2, a framework 22, a driving mechanism 25, and a control system 31. The folding hood 2 is installed on the framework 22. The driving mechanism 25 includes a locking tongue 28, a locking driving motor 29, a telescopic mechanism, and an underframe 30. The underframe 30 is installed in the framework 22. The locking tongue 28, the locking driving motor 29, and the telescopic mechanism are installed on the underframe 30. The locking tongue 28 is connected to the locking driving motor 29 and is driven by the locking driving motor 29. The telescopic mechanism and the locking driving motor 29 are electrically connected to the control system 31.

[0033] An automatic pipe gangway for a railway vehicle in this embodiment is composed of two sets of gangway split structures 1, which are respectively installed on two carriages. Each set includes a folding hood 2, a framework 22, a driving mechanism 25, and a control system 31. The folding hood 2 is installed on the framework 22, providing a passage space for passengers and having functions such as wind prevention, dust prevention, sound insulation, and heat insulation. The driving mechanism 25 is composed of a locking tongue 28, a locking driving motor 29, a telescopic mechanism, and an underframe 30. The underframe 30 is installed inside the framework 22. The locking tongue 28 is connected to the locking driving motor 29 and is driven by it. The telescopic mechanism and the locking driving motor 29 are both electrically connected to the control system 31, receiving instructions from the control system 31 to complete various operations.

[0034] In actual operation, when the train needs to be coupled, the staff only need to operate the one-key coupling function of the control system 31 on the display panel, and the docking frame 4 in the folding shed 2 will be automatically unlocked, and the telescopic mechanism of the driving mechanism 25 will then guide the folding shed 2 to extend forward. When the front and rear gangway split structures of two carriages come into contact with each other, the two gangway split structures can accurately close and dock. At this time, the sensor will trigger a signal to confirm the completion of the docking. Immediately afterwards, the locking mechanism in the folding shed 2 automatically locks, and the telescopic mechanism automatically retracts, so as to realize the safe passage of internal personnel. The whole process is fast and efficient, greatly improving the efficiency and convenience of train coupling. In the above settings, the locking mechanism in the folding shed 2 is an electric locking mechanism to realize the locking connection of the two folding sheds. The corresponding lock structure is disclosed in the prior art and will not be elaborated here.

[0035] When the gangway needs to be uncoupled, similarly, operate the one-key uncoupling function of the control system 31 through the display panel. The docking frame 4 in the folding shed 2 in the coupled state is automatically unlocked, the telescopic mechanism is pushed out and connected to the folding shed 2, driving the folding shed 2 to retract. At the same time, the motor of the driving mechanism 25 realizes the automatic locking of the lock tongue 28, and the lock tongue 28 locks the lock piece on the folding shed, so that the gangway is in the retracted state and personnel cannot pass.

[0036] An automatic gangway for railway vehicles in this embodiment has an overall technical solution that can be automatically coupled and uncoupled, changing the situation that traditional gangways rely on manual operation and realizing intelligent control. Its docking principle of extending and retracting, combined with a precise mechanical structure and the control system 31, ensures the accuracy and stability of the coupling and uncoupling processes. This automatic gangway can complete automatic coupling and uncoupling operations on a certain curved line, which has strong adaptability to the complex line conditions in railway transportation.

[0037] The telescopic mechanism includes a servo motor 26 and an electric cylinder 27. The electric cylinder 27 is connected to the servo motor 26 and is driven by the servo motor 26 to act. The telescopic mechanism plays a role in the coupling and uncoupling processes of the automatic gangway for railway vehicles. During coupling, after the one-key coupling instruction of the control system 31 is issued, the servo motor 26 drives the electric cylinder 27 to extend, pushing the folding shed 2 to extend forward, ensuring that the front and rear gangways come into contact, and closing and docking along the designed trajectory under the action of the guide pin 11. After the docking is completed, the electric cylinder 27 automatically retracts. During uncoupling, the one-key uncoupling instruction causes the electric cylinder 27 to be pushed out to connect to the folding shed 2, and the servo motor 26 drives the folding shed 2 to retract.

[0038] Specifically, a telescopic electromagnet 34 is connected to the electric cylinder 27, and a magnetic attraction plate 33 is provided on the folding shed. The telescopic process is realized through the adsorption of the electromagnet on the magnetic attraction plate 33.

[0039] As an alternative, in addition to using the combination of the servo motor 26 and the electric cylinder 27, the telescopic mechanism can also use the screw drive or the lead screw drive method to achieve its function.

[0040] The framework 22 includes a mounting framework 23 and a mounting bracket 24. The mounting bracket 24 is provided on the mounting framework 23, and the folding shed 2 is installed on the mounting bracket 24. The framework 22 provides a basic framework for the entire structure to ensure its stability; the mounting bracket 24 provides a mounting point for the folding shed 2 to make it firmly attached.

[0041] The control system 31 includes a communication module, a control module, an execution module, and a detection module. The execution module and the detection module are electrically connected to the telescopic mechanism and the lock drive motor 29, and the communication module, the execution module, and the detection module are electrically connected to the control module. Each module of the control system 31 works in coordination. The components are installed in the vehicle and are conveniently operated by the staff through a display screen, effectively improving work efficiency.

[0042] The communication module communicates with the host computer via Ethernet. It can not only receive instructions from the host computer to drive relevant actions but also upload system information to ensure the interaction and circulation of information. The control module accurately obtains the position information of the docking frame 4 by using the detection module, and then precisely controls the telescoping and locking of the docking frame 4 by virtue of the execution module, thereby ensuring the accurate execution of the connection and disconnection of the through passage.

[0043] The control system 31 has three control modes, namely the synchronous mode, the section mode, and the pair mode. In the synchronous mode, the front and rear end automatic through passages can be synchronously controlled by the single-end control system 31 to achieve efficient automatic connection and disconnection; the section mode focuses on the extension and retraction control of the single side of the front-end through passage; the pair mode is for the single-side operation of the opposite-end through passage.

[0044] To facilitate the motion control of the through passage split structure 1, the through passage split structure 1 includes two sets of the drive mechanisms 25.

[0045] For each module of the control system 31, the following specific descriptions are made:

[0046] Control module: It is the main control chip for realizing the control function and the matching control circuit.

[0047] Execution module: It is the drive circuit of the upper and lower electric cylinders 27 and the telescopic electromagnet 34. The main control chip, according to the commands of the system's built-in control buttons or Ethernet remote signals, controls the electric cylinders to push the folding shed 2 to move, thereby realizing the functions of connection and decoupling.

[0048] Detection module: It is a motor encoder and a push rod position signal acquisition circuit. The system can collect the pulse signals of the encoder to calculate the rotational speeds of the upper and lower electric cylinders 27, and then achieve the synchronization function of the upper and lower electric cylinders 27 by adjusting the rotational speeds. The upper and lower telescopic mechanisms are equipped with 2 position sensors, and the position of the telescopic mechanism is determined by collecting the signals of the position sensors.

[0049] Communication module: This module is connected to the on-vehicle host computer system through an Ethernet interface, receives the vehicle running speed in real time, and sends the working conditions of the vehicle passage device to the host computer.

[0050] The folding hood 2 includes a hood cloth 3, a docking frame 4, a vehicle body connection frame 5, a sealing strip 6 and a guide pin 11. The docking frame 4 and the vehicle body connection frame 5 are respectively arranged at both ends of the hood cloth 3. The vehicle body connection frame 5 is connected to the skeleton 22. The sealing strip 6 and the guide pin 11 are arranged on the docking frame 4. The folding hood 2 plays an important role in the automatic gangway system of railway vehicles. On the one hand, it provides a standing and passing space for passengers between adjacent carriages, ensuring the safe and convenient passage of passengers between carriages and improving the passengers' riding experience. On the other hand, the folding hood 2 has good physical properties, can effectively reduce the transmission of external noise and heat into the carriage interior, create a relatively quiet and comfortable riding environment for passengers, and also helps with the temperature control and energy saving inside the train.

[0051] During the actual train coupling and uncoupling processes, during coupling, the docking frame 4 in the folding hood 2 is automatically unlocked under the command of the control system 31, and then extends forward under the action of the drive mechanism 25 to cooperate with the folding hood 2 of the opposite gangway to complete the docking action. After the docking is completed, the docking frame 4 of the folding hood 2 is locked to ensure the stability of the coupling and guarantee the safe passage of personnel. During uncoupling, the docking frame 4 is unlocked, and the folding hood 2 is retracted under the drive of the electric cylinder 27 to return to the initial state, providing convenience for the train uncoupling operation. Its flexible telescopic performance and reliable connection function are important guarantees for the efficient operation of the automatic gangway.

[0052] The guide pin 11 plays an accurate guiding role in the automatic gangway of railway vehicles. During coupling, when the folding hood 2 extends and the front and rear gangways come into contact, the guide pin 11 will guide the two gangways to close and dock according to the preset trajectory to ensure the accurate connection of the gangways and avoid misalignment.

[0053] The sealing strip 6 is mainly used for sealing and can effectively prevent external impurities such as dust and sand from entering the carriage interior. At the same time, it also plays a role in sound insulation and heat insulation.

[0054] In the prior art, as a setting method of the guide pin 11, the guide pin 11 is fixedly arranged on the docking frame 4.

[0055] In this embodiment, in order to optimize the setting of the guide pin 11, the sealing strip 6 is provided with a mounting hole 7 and a guide hole 9. The guide pin 11 is arranged in the mounting hole 7 and inserted into the guide hole 9 of the other through-channel split structure 1. The guide pin 11 is detachably connected to the guide hole 9. After the coupling is completed, the guide pin 11 is inserted into the guide hole 9 to realize the connection between the two sealing strips 6. Since the guide pin 11 is arranged in the mounting hole and the guide hole and is not fixedly connected to the docking frame 4, that is, it is completely located in the two sealing strips 6, which is beneficial to adapting to the deformation of the sealing strip 6, and thus is beneficial to the sealing strip 6 to produce a good enough sealing effect.

[0056] Regarding the detachable connection between the guide pin 11 and the guide hole 9, a bolt can be provided on the side of the guide hole 9 for abutting and fixing, or the detachable connection between the guide pin 11 and the guide hole 9 can be realized by setting auxiliary buckles. The detachable setting of the connection structure is mainly for facilitating decoupling and coupling.

[0057] In this embodiment, the optimization setting method is as follows: The guide pin 11 includes a guide cylinder 12 and a movable pin 19. A plurality of through holes 13 are provided on the guide cylinder 12, and the plurality of through holes 13 are evenly distributed around the circumference of the guide cylinder 12. A clamping block 14 is provided in the through hole 13. The top side of the clamping block 14 is connected to the hole wall of the through hole 13 by a steel sheet 15. An abutting protrusion 16 is provided on the clamping block 14. A plurality of guide strips 17 arranged along the axial direction thereof are provided on the inner wall of the guide cylinder 12. The position of the through hole 13 corresponds to the position of the guide strip 17. The movable pin 19 is arranged in the guide cylinder 12. A plurality of guide grooves 20 are provided on the surface of the movable pin 19. The plurality of guide strips 17 and the plurality of guide grooves 20 are in one-to-one correspondence and cooperation. A limit groove 21 corresponding to the abutting protrusion 16 is provided on the guide groove 20. The guide cylinder 12 is fixedly arranged in the mounting hole 7 and inserted into the guide hole 9 of the other split structure 1 of the through passage. A first driving member 8 is provided in the mounting hole 7, and a second driving member 10 is provided in the guide hole 9. The first driving member 8 and the second driving member 10 are used to drive the movable pin 19 to act. Clamping grooves 32 corresponding to the plurality of clamping blocks 14 are provided on the hole wall of the guide hole 9. With the above structural settings, after the two split members of the through passage are docked, the guide cylinder 12 is respectively inserted into the two sealing strips 6 in butt contact, specifically located in the mounting hole 7 and the guide hole 9, to realize the relative fixation of the two sealing strips 6, improve the stability of the sealing structure, and improve the sealing effect. Since both ends of the guide pin 11 do not contact the docking frame 4 and are completely located in the two sealing strips 6, it is beneficial to adapt to the deformation of the sealing strip 6, is beneficial to the sealing strip 6 to produce a good enough sealing effect, and avoids the sealing effect defect caused by the incomplete deformation of the sealing strip 6 due to the fixed setting. After the two sealing strips 6 are docked, the first driving member 8 or the second driving member 10 is used to drive the movable pin 19 to act, so that the abutting protrusion 16 enters the limit groove 21. Under the lifting action of the limit groove 21, the clamping block 14 protrudes upward and enters the clamping groove 32, so as to realize the connection of the two sealing strips 6 through the guide pin 11 and improve the sealing effect.

[0058] Specifically, the first driving member 8 and the second driving member 10 are arranged as electromagnets, and the movable pin 19 is made of a magnetic material. Thus, by energizing and de-energizing the first driving member 8 and the second driving member 10, the left and right movement of the movable pin 19 can be realized, and the movement control of the movable pin 19 can be realized.

[0059] In order to achieve a good clamping effect of the clamping block 14 in the connected state and make the two sealing strips 6 tightly connected, a clamping protrusion 18 is provided on the side of the clamping block 14.

[0060] In order to enable the guide pin 11 to accurately enter the guide hole 9 when the folding shed 2 is docked, an arc chamfer is provided on the edge of the guide hole 9 to guide the entry of the guide pin 11.

[0061] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or terminal device. Without further limitation, the elements defined by the statement "comprising..." or "including..." do not exclude the presence of additional elements in the process, method, article or terminal device comprising the said elements. In addition, in this text, "greater than", "less than", "exceeding", etc. are understood not to include the present number; "above", "below", "within", etc. are understood to include the present number.

[0062] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the present invention. It is obvious that those skilled in the art can easily make various modifications to the embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. An automatic gangway for railway vehicles, characterized in that: The invention comprises two sets of through-channel split structures, wherein the through-channel split structures comprise a folding shed, a frame, a driving mechanism and a control system, wherein the folding shed is mounted on the frame, the driving mechanism comprises a locking tongue, a lock driving motor, a telescopic mechanism and a chassis, the chassis is mounted in the frame, the locking tongue, the lock driving motor and the telescopic mechanism are mounted on the chassis, the locking tongue is connected to the lock driving motor and driven by the lock driving motor, the telescopic mechanism and the lock driving motor are electrically connected to the control system, the folding shed comprises a shed cloth, a docking frame, a vehicle body connecting frame, a sealing strip and a guide pin, the docking frame and the vehicle body connecting frame are respectively arranged at two ends of the shed cloth, the vehicle body connecting frame is connected to the frame, the sealing strip and the guide pin are arranged on the docking frame, the sealing strip is provided with a mounting hole and a guide hole, the guide pin is arranged in the mounting hole and inserted into the guide hole of another through-channel split structure, and the guide pin is detachably connected to the guide hole; the guide pin comprises The guide cylinder and the movable pin, the guide cylinder is provided with a plurality of openings, and the plurality of openings are evenly distributed around the circumference of the guide cylinder, and a positioning block is provided in the opening, and the top side surface of the positioning block is connected to the hole wall of the opening through a steel sheet, and the positioning block is provided with a top-butting protrusion, and the inner wall of the guide cylinder is provided with a plurality of guide strips arranged along its axial direction, and the position of the opening corresponds to the position of the guide strip, and the movable pin is arranged in the guide cylinder, and the surface of the movable pin is provided with a plurality of guide grooves, and the plurality of guide strips and the plurality of guide grooves are matched one by one, and the guide groove is provided with a limiting groove corresponding to the top-butting protrusion, and the guide cylinder is fixedly arranged in the mounting hole and inserted into the guide hole of the other split structure of the through-channel, and a first driving member is provided in the mounting hole, and a second driving member is provided in the guide hole, and the first driving member and the second driving member are used to drive the movable pin to move, and the hole wall of the guide hole is provided with positioning grooves corresponding to the plurality of positioning blocks.

2. The automatic gangway for railway vehicles according to claim 1, characterized in that: The telescopic mechanism comprises a servo motor and an electric cylinder. The electric cylinder is connected to the servo motor and driven by the servo motor.

3. The automatic gangway for railway vehicles according to claim 1, characterized in that: The frame comprises a mounting frame and a mounting frame, the mounting frame is arranged on the mounting frame, and the bellows is mounted on the mounting frame.

4. The automatic gangway for railway vehicles according to claim 1, characterized in that: The control system includes a communication module, a control module, an execution module and a detection module, wherein the execution module and the detection module are electrically connected to the telescopic mechanism and the lock drive motor, and the communication module, the execution module and the detection module are electrically connected to the control module.

5. The automatic gangway for railway vehicles according to claim 1, characterized in that: The through-channel split structure includes two sets of the driving mechanisms.

6. The automatic gangway for railway vehicles according to claim 1, characterized in that: The first driving member and the second driving member are configured as electromagnets, and the movable pin is made of magnetic material.

7. The automatic gangway for railway vehicles according to claim 1, characterized in that: A locking protrusion is provided on the side of the locking block.

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