Side door evacuation device and railway vehicle

Abstract

The side door evacuation device and the rail vehicle are provided in the embodiments of the present application, and the side door evacuation device comprises a framework assembly, a moving device and an evacuation ladder device. One end of the moving device is connected with the framework assembly, and the other end is connected with the evacuation ladder device, which is used to drive the evacuation ladder device to stretch and retract in the horizontal direction. The evacuation ladder device is driven to retract into the vehicle or to push out of the vehicle. The fixed frame is located in the middle of the evacuation ladder, and is used as the sliding reference and driving fulcrum of the sliding frame. The sliding frames are arranged above and below the fixed frame respectively, and each sliding frame is provided with a step number increasing when the pedal is unfolded. When the pedal is folded, the sliding frame is attached to the fixed frame to reduce the overall thickness. One end of the sliding driving part is connected with the sliding frame, and the other end is connected with the fixed frame, which drives the two sliding frames to move synchronously. The compactness of storage and the passing efficiency during use are considered, and the quick braking and unfolding are realized, the response time is short, and the evacuation time requirement is met.

Description

Technical Field

[0001] This application relates to the field of rail transit evacuation equipment technology, specifically to a side door evacuation device and a rail vehicle. Background Technology

[0002] Suburban railway lines often include tunnels and elevated sections, and according to standards, these lines must have passenger evacuation capabilities. To reduce infrastructure costs, there is a need to equip rail vehicles with evacuation ladders. For vehicles with crew members, the ladders can be operated by the crew to assist passengers in evacuation. For unmanned rail vehicles, when passenger evacuation is required in elevated sections or tunnels, the evacuation ladders need to deploy automatically, allowing passengers to evacuate from the vehicle to the outside.

[0003] Manual evacuation ladders are installed under the vehicles. The ladder steps are manually pulled out, flipped, lowered, and locked. The evacuation ladders cannot be automatically deployed and retracted; they require professional operation, which is time-consuming and labor-intensive. To ensure passenger flow and load-bearing capacity, the ladders are large and heavy. Summary of the Invention

[0004] This application provides a side door evacuation device and a rail vehicle to solve the problems of existing side door evacuation devices being manual, unable to unfold automatically, and time-consuming and labor-intensive to operate.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A side door evacuation device, comprising:

[0007] The frame consists of a skeleton, with the top used for fixing it to the vehicle body;

[0008] A mobile device, one end of which is connected to the frame and the other end of which is connected to the evacuation ladder device, is used to drive the evacuation ladder device to extend and retract in the horizontal direction;

[0009] An evacuation ladder device includes a fixed frame, a sliding frame, and a sliding drive component. The sliding frames are located on the upper and lower sides of the fixed frame, and both the fixed frame and the sliding frames have treads, forming a multi-step continuous stair structure. One end of the sliding drive component is connected to each of the sliding frames, and the other end is connected to the fixed frame, for driving the upper and lower sliding frames to move up and down for retraction and extension.

[0010] Compared with the prior art, the side door evacuation device and rail vehicle provided in this application embodiment have the following technical advantages:

[0011] One end of the mobile device is connected to the frame, and the other end is connected to the evacuation ladder device, used to drive the evacuation ladder device to extend and retract horizontally; drive the evacuation ladder device to retract inward into the vehicle or push it outward out of the vehicle; achieve non-folding overall horizontal movement, not easy to jam, and stable center of gravity; the fixed frame is located in the middle of the evacuation ladder, serving as the sliding reference and driving fulcrum for the sliding frame; the sliding frames are respectively set above and below the fixed frame, and each sliding frame also has an auxiliary step that extends outward when unfolded, increasing the number of steps; when folded, it fits against the fixed frame, reducing the overall thickness. The sliding drive component is connected to the sliding frame at one end and the fixed frame at the other end, driving the upper and lower sliding frames to move synchronously; it balances compact storage with efficient passage during use; and can achieve rapid braking and unfolding with a short response time to meet evacuation time requirements. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0013] Figure 1 This is a cross-sectional structural schematic diagram of a side door evacuation device provided in an embodiment of this application;

[0014] Figure 2 This is a schematic diagram of the evacuation ladder device in its retracted state as provided in the embodiments of this application;

[0015] Figure 3 This is a schematic diagram of the evacuation ladder device being opened according to an embodiment of this application;

[0016] Figure 4 A schematic diagram of the fully opened evacuation ladder device provided in the embodiments of this application;

[0017] Figure 5 This is a schematic diagram of the skeleton composition and moving device provided in the embodiments of this application;

[0018] Figure 6 This is a schematic diagram of the cover plate in the open state provided in an embodiment of this application;

[0019] Figure 7 This is a schematic diagram of the extended state of the mobile device provided in the embodiments of this application;

[0020] Figure 8 A schematic diagram of the protective cover device is provided for the embodiments of this application.

[0021] The following labels are shown in the attached diagram:

[0022] Side door evacuation device 100, vehicle body side door frame 200, C-shaped groove 201, vehicle body manual pull rod 202;

[0023] The frame consists of 10 components, 20 components, 30 components, and 40 components.

[0024] Fixed block 111, C-type block 112;

[0025] Linear slide rail 21, linear slider 22, sliding bracket 23, linear movement drive component 24, first bolt 25, first electronic lock 26, second electronic lock 27, second bolt 28, third electronic lock 29, electromagnetic door suction plate 210, electromagnetic redundant lock 211;

[0026] Fixed frame 31, upper frame 32, lower frame 33, sliding drive component 34, first slide rail 35, second slide rail 36, sliding guide assembly 37, first slide rod 341, support rod 3411, support rod sliding hole 34111, first sliding seat 342, sliding drive component 343, second slide rod 344, second sliding seat 345, connecting rod 346, first support component 347, V-shaped connecting rod 348, support shaft 3481, manual pull rod 349, second support component 3410, pull rod connector 341 2. Slide bar limiting component 3413, fixed pedal 311, fixed frame 312, top limiting component 3121, bottom limiting component 3122, upper pedal 321, upper support frame 322, upper limit hole 323, lower pedal 331, lower support frame 332, lower limit hole 333, guide slide rail 371, roller 372, protective cover 41, cover plate 42, cover plate pivot seat 43, cover plate pivot arm 44, cover plate drive component 45, position sensor 46, top sealing plate 411, side sealing plate 412. Detailed Implementation

[0027] This invention discloses a side door evacuation device and a rail vehicle to solve the problems of existing side door evacuation devices being manual, unable to unfold automatically, and time-consuming and labor-intensive to operate.

[0028] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0029] Please see Figure 1-8 , Figure 1 This is a cross-sectional structural schematic diagram of a side door evacuation device provided in an embodiment of this application; Figure 2 This is a schematic diagram of the evacuation ladder device in its retracted state as provided in the embodiments of this application; Figure 3 This is a schematic diagram of the evacuation ladder device being opened according to an embodiment of this application; Figure 4A schematic diagram of the fully opened evacuation ladder device provided in the embodiments of this application; Figure 5 This is a schematic diagram of the skeleton composition and moving device provided in the embodiments of this application; Figure 6 This is a schematic diagram of the cover plate in the open state provided in an embodiment of this application; Figure 7 This is a schematic diagram of the extended state of the mobile device provided in the embodiments of this application; Figure 8 A schematic diagram of the protective cover device is provided for the embodiments of this application.

[0030] In one specific embodiment, the vehicle door evacuation device provided in this application includes a frame assembly 10, a moving device 20, and an evacuation ladder device 30. The frame assembly 10 is located below the vehicle body, and its top is detachably and fixedly connected to the vehicle body. It can be fixed by connecting to the C-shaped groove 201 at the bottom of the side door of the vehicle body via a fixing block 111 and a C-shaped block 112. It bears the weight of the entire evacuation device and serves as a fixed fulcrum for the moving device 20, effectively transferring the personnel load during emergency evacuation to the main structure of the vehicle body. It can be configured as a metal frame, such as aluminum alloy or stainless steel. One end of the moving device 20 is connected to the frame assembly 10, and the other end is connected to the evacuation ladder device 30. It is used to drive the evacuation ladder device 30 to extend and retract horizontally; to drive the evacuation ladder device 30 to retract inward into the vehicle or to extend outward out of the vehicle; it can be configured as an electric push rod, a linkage 346 mechanism, or a pneumatic / hydraulic cylinder, etc.; achieving non-folding overall horizontal movement, preventing jamming and ensuring a stable center of gravity.

[0031] The evacuation ladder device 30 includes a fixed frame 31, a sliding frame, and a sliding drive component 34. The sliding frames are located on the upper and lower sides of the fixed frame 31, and both the fixed frame 31 and the sliding frames have treads, forming a multi-step continuous step structure. One end of the sliding drive component 34 is connected to each sliding frame, and the other end is connected to the fixed frame 31. It is used to drive the sliding frames on the upper and lower sides to move towards or away from the fixed frame 31 for retraction and extension.

[0032] The fixed frame 31 is located in the middle of the evacuation ladder and has at least one main step inside, forming a basic passageway. It is rigidly connected to the moving device 20 and moves horizontally with the whole ladder, serving as the sliding reference and driving fulcrum for the sliding frame. The sliding frames are respectively set above and below the fixed frame 31, and each sliding frame is also equipped with an auxiliary step, which can slide relative to the fixed frame 31 in a vertical or oblique direction. When unfolded, it extends outward to increase the number of steps; when retracted, it fits against the fixed frame 31 to reduce the overall thickness. The sliding drive component 34 is connected to the sliding frame at one end and to the fixed frame 31 at the other end, driving the upper and lower sliding frames to move synchronously. It can be set as a linkage 346 synchronization mechanism, a screw and nut mechanism, etc., which can be set as needed. It realizes the unfolding and retraction of the evacuation ladder in the overall length or height direction, creating a continuous stepway; it takes into account both compact storage and passage efficiency during use.

[0033] The specific workflow is as follows: The operator presses the emergency evacuation button, and the control system is activated; the moving device 20 moves, pushing the entire evacuation ladder device 30 horizontally out of the vehicle until it reaches the predetermined position; the sliding drive component 34 is activated, driving the upper and lower sliding frames to slide upwards and downwards respectively, forming a two- or three-stage step structure together with the pedals on the fixed frame 31, realizing the transformation from the retracted state to the unfolded state, forming a folding multi-stage step mechanism; the mechanical locking mechanism automatically locks the sliding frame and the moving device 20 to prevent retraction during use; passengers safely and smoothly evacuate to the ground along the multi-steps; manual or automatic reverse operation, first retracting the sliding frame, then retracting the entire device, restoring it to its original state.

[0034] A three-tiered system, consisting of a fixed frame 31 and sliding frames, adapts to varying heights, enhancing passenger safety. The dual action of horizontal movement and vertical lifting ensures efficient space utilization; synchronized sliding up and down provides balanced force and smooth operation, preventing uneven loading; compared to single-step treads, the multi-tiered structure allows for a smoother transition between height differences, reducing the risk of missteps; it is particularly suitable for vehicles with high ground clearance (such as subways and high-floor buses); and it is ergonomically designed for safe use by the elderly and children. The movement trajectory and unfolded dimensions of the evacuation ladder device 30 are controlled to extend 600mm beyond the outer edge of the vehicle body, without encroaching on the evacuation platform, ensuring efficient pedestrian flow.

[0035] In one optional embodiment, each sliding frame is provided with a first slide rail 35 extending along the length direction on the side of the vehicle body that is laterally close to the vehicle body; the sliding drive component 34 further includes:

[0036] The first slide rod 341 has a first sliding seat 342 hinged to its top and bottom ends, and the first sliding seat 342 cooperates with the first slide rail 35; the middle part of the first slide rod 341 is rotatably connected to the fixed frame 31, and the middle part of the first slide rod 341 is also provided with a support rod 3411 extending obliquely downward and away from the first slide rod 341, and the support rod 3411 has a support rod sliding hole 34111 extending along the length direction;

[0037] The sliding drive component 343 has its fixed end hinged to the back side of the fixed frame 31, and its telescopic end located in the support rod sliding hole 34111. When the sliding drive component 343 extends or retracts, it drives the telescopic end to slide in the support rod sliding hole 34111, causing the first slide rod 341 to rotate counterclockwise or clockwise around the fixed frame 31, causing the sliding seat to slide on the first slide rail 35, and driving the upper and lower sliding frames to retract or extend synchronously.

[0038] The sliding frame extends laterally along the vehicle body, with the side closest to the vehicle body being the back side, i.e., the direction facing the interior of the vehicle. Similarly, the sliding frame extends longitudinally along the vehicle body, and the first slide rail 35 extends longitudinally along the length of the sliding frame, i.e., the vehicle body. The top and bottom ends of the first slide rod 341 are respectively hinged to the first slide seat 342. The sliding drive member 343 drives the first slide rod 341 to rotate around the fixed frame 31 and drives the first slide seat 342 to move on the first slide rail 35. At the same time, the sliding frame moves towards or away from the fixed frame 31 to achieve retraction or unfolding. The sliding drive component 343, the support rod 3411, and the first slide rod 341 form a linkage 346 mechanism. The first slide rod 341 acts as a synchronous transmission lever, converting rotational motion into vertical linear motion at both ends. The first sliding seat 342 is embedded in the first slide rail 35 and slides within the first slide rail 35 as the first slide rod 341 swings, driving the sliding frame to slide up and down. The support rod 3411 extends from the middle of the first slide rod 341, tilting downwards and outwards in a direction away from the first slide rod 341. 411 is provided with a support rod sliding hole 34111, which extends along the length of the support rod 3411 itself, and serves as a force transmission arm to receive the force of the sliding drive component 343; the sliding drive component 343 is a linear actuator such as an electric push rod, a cylinder, or a hydraulic cylinder; the fixed end of the sliding drive component 343 is hinged to the fixed frame 31 on the side near the vehicle body, i.e., the back side, and the telescopic end of the sliding drive component 343 is located in the support rod sliding hole 34111, forming a sliding fit. When the sliding drive component 343 extends or retracts, it pushes / pulls the support rod 3411.

[0039] The specific working principle is as follows: the sliding drive component 343 retracts, and the telescopic end slides in the support rod sliding hole 34111, pulling the support rod 3411. The support rod 3411 drives the first slide rod 341 to rotate clockwise around its central fulcrum. The top of the first slide rod 341 is raised, and the upper first sliding seat 342 slides to the right in the first slide rail 35. The top of the first slide rod 341 is raised, and the lower first sliding seat 342 slides to the left in the first slide rail 35. The upper sliding frame slides out upward to form an upper step pedal, and the lower sliding frame slides out downward to form a lower step pedal. Together with the fixed frame 31 pedal, they form a three-step structure.

[0040] The sliding drive component 343 extends out, and the telescopic end slides in the support rod sliding hole 34111, pushing the support rod 3411. The support rod 3411 drives the first slide rod 341 to rotate counterclockwise around its central fulcrum. The top of the first slide rod 341 presses down, and the upper first sliding seat 342 slides to the left in the first slide rail 35. The bottom of the first slide rod 341 rises, and the lower first sliding seat 342 slides to the right in the first slide rail 35. The upper sliding frame retracts downward, and the lower sliding frame retracts upward. The sliding frame retracts and fits against the fixed frame 31.

[0041] It uses a single drive source to achieve synchronous movement of the upper and lower sliding frame through the first slide rod 341, without the need for electronic synchronization control; the support rod sliding hole 34111 allows the sliding drive component 343 to automatically adjust the point of action during movement, avoiding jamming and improving reliability; all drive mechanisms are integrated on the back of the fixed frame 31, without occupying external space and with a neat appearance; the sliding drive component 343 can extend and retract, realizing fully automatic control of unfolding and retraction.

[0042] Furthermore, each sliding frame is provided with a second slide rail 36 extending along its length on its back side, with the first slide rail 35 and the second slide rail 36 spaced apart; the sliding drive component 34 also includes:

[0043] The second slide rod 344 has a second sliding seat 345 hinged to its top and bottom ends, and the second sliding seat 345 cooperates with the second slide rail 36; the middle part of the second slide rod 344 is rotatably connected to the fixed frame 31.

[0044] The connecting rod 346 has its two ends in the length direction hinged to the first slide rod 341 and the second slide rod 344 respectively; the connecting rod 346 drives the second slide rod 344 to move synchronously with the first slide rod 341.

[0045] To improve stability during force transmission, a second slide rail 36 is provided on the back side of each sliding frame, with the second slide rail 36 and the first slide rail 35 spaced apart. The second slide rail 36 provides a guide rail for the second sliding seat 345, forming a double-rail guide system together with the first slide rail 35 to prevent the sliding frame from twisting or tilting during movement. Specifically, the top and bottom ends of the second slide rod 344 are respectively hinged to the second sliding seat 345, and the middle part is rotatably connected to the fixed frame 31, serving as a second synchronous swing rod that works in conjunction with the first slide rod 341. The second sliding seat 345 is embedded in the second slide rail 36. In the middle, the second sliding rod 344 swings and slides in the slide rail, assisting the first sliding seat 342, and together driving the sliding frame to move; the two ends of the connecting rod 346 are respectively hinged to the first sliding rod 341 and the second sliding rod 344, preferably located between the first sliding rod 341 and the second sliding rod 344, to ensure that the first sliding rod 341 and the second sliding rod 344 rotate synchronously, to ensure that the movement of the upper and lower sliding frames is completely consistent, and to improve the overall rigidity and anti-interference ability of the mechanism; the connecting rod 346 locks the two independent swing levers into a synchronous motion system, which is used to improve the stability, rigidity and reliability of the multi-stage evacuation ladder during dynamic deployment.

[0046] Furthermore, the sliding drive component 34 also includes:

[0047] The first support member 347 is located on the fixed frame 31 and extends downward;

[0048] The bottom end of the V-shaped connecting rod 348 is rotatably connected to the first support member 347. The end of the first inclined side of the V-shaped connecting rod 348 is provided with a support shaft 3481. The support shaft 3481 is located in the support rod sliding hole 34111 and is slidably engaged with the support rod sliding hole 34111. The support shaft 3481 is rotatably connected to the telescopic end of the sliding drive member 343. The sliding drive member 343 can drive the V-shaped connecting rod 348 to rotate counterclockwise or clockwise, thereby driving the support shaft 3481 to slide in the support rod sliding hole 34111.

[0049] The manual pull rod 349 is hinged to the end of the second inclined side of the V-shaped connecting rod 348, and is used to drive the V-shaped connecting rod 348 to rotate clockwise or counterclockwise around the first support member 347, drive the support shaft 3481 to slide in the support rod sliding hole 34111, and drive the first sliding rod 341 to rotate counterclockwise or clockwise around the fixed frame 31.

[0050] The first support member 347 is a column or bracket that extends downward on the back side of the fixed frame 31, serving as the rotation fulcrum of the V-shaped connecting rod 348, providing an installation base, and enhancing the overall structural rigidity; the material can be metal. The V-shaped connecting rod 348 is V-shaped, formed by two inclined sides converging at the bottom; the bottom end of the V-shaped connecting rod 348 is rotatably connected to the first support member 347 and can rotate around a horizontal axis; the support shaft 3481 is inserted into the support rod sliding hole 34111, the support shaft 3481 is located at the end of the first inclined side of the V-shaped connecting rod 348, and passes through the support rod sliding hole 34111 to achieve sliding guidance. At the same time, the support shaft 3481 is rotatably connected to the telescopic end of the sliding drive member 343, such as the hole and shaft, to receive push and pull forces; it can swing clockwise or counterclockwise in a vertical or inclined plane. The swing of the V-shaped connecting rod 348 is converted into a pushing and pulling action on the support rod 3411. Its swing directly pushes / pulls the support shaft 3481 in the support rod sliding hole 34111, thereby driving the first sliding rod 341 to rotate.

[0051] Meanwhile, the manual pull rod 349 is hinged to the end of the second inclined side of the V-shaped connecting rod 348. When the manual pull rod is pulled or pushed, the V-shaped connecting rod 348 swings around the first support member 347, which in turn drives the support shaft 3481 to slide in the support rod sliding hole 34111. Finally, the first sliding rod 341 is driven to rotate, realizing the unfolding or retraction of the sliding frame. In case of power failure in an emergency, the operator pulls the manual pull rod 349, the V-shaped connecting rod 348 swings, the support shaft 3481 moves, the first sliding rod 341 rotates, and the sliding frame unfolds.

[0052] The specific working principle of the automatic mode is as follows: the sliding drive component 343 retracts, pulling the support shaft 3481, the V-shaped connecting rod 348 swings counterclockwise, the support shaft 3481 slides in the support rod sliding hole 34111, pulling the support rod 3411, the first sliding rod 341 rotates clockwise, and the sliding frame unfolds.

[0053] The specific working principle of the manual mode is as follows: When the operator pulls the manual lever 349, the V-shaped connecting rod 348 swings counterclockwise around the first support member 347, and the support shaft 3481 slides in the support rod sliding hole 34111. Pulling the support rod 3411 causes the first sliding rod 341 to rotate clockwise, and the sliding frame unfolds. When the vehicle body is in a state of power and gas cutoff, the sliding drive member 343 fails. Pulling the manual lever 349 with the handle causes the V-shaped connecting rod 348 to rotate clockwise and counterclockwise. After the evacuation ladder is opened, the V-shaped connecting rod 348 is locked at the dead point of the first sliding rod 341, ensuring structural stability after the entire evacuation ladder is unfolded. After the first sliding seat 342 and the second sliding seat 345 move, they will contact the sliding rod limiting member 3413 and be restricted in their displacement. Pushing the handle causes the V-shaped connecting rod 348 to rotate clockwise through the manual lever 349, with the movement trajectory resembling an electrically controlled action, until the V-shaped connecting rod 348 moves to the dead point and is locked automatically.

[0054] Furthermore, the sliding drive component 34 also includes:

[0055] The second support member 3410 is located on the fixed frame 31 and extends downward, and is arranged parallel to the first support member 347.

[0056] The pull rod connector 3412 is hinged at one end to the second support 3410 and at the other end to the manual pull rod 349, and the pull rod connector 3412 is arranged parallel to the second inclined side of the V-shaped connecting rod 348.

[0057] The second support member 3410 is arranged on the same side as the first support member 347, and is also a downward-extending column or bracket, parallel to the first support member 347. It serves as the rotation fulcrum of the tie rod connector 3412, and together with the first support member 347, it forms a double-fulcrum support structure to improve the overall rigidity. One end of the tie rod connector 3412 is hinged to the second support member 3410, and the other end is hinged to the manual tie rod 349, and is set parallel to the second inclined side of the V-shaped connecting rod 348. It stably transmits the movement of the manual tie rod 349 to the V-shaped connecting rod 348, forming a parallelogram mechanism to ensure that the manual tie rod 349 does not twist or deviate during operation.

[0058] When the operator pulls the manual lever 349: the manual lever 349 swings around its hinge point with the lever connector 3412; the lever connector 3412 swings accordingly; due to the parallel relationship, the manual lever 349 always maintains the same relative posture with the second inclined side of the V-shaped connecting rod 348; the force is smoothly transmitted to the V-shaped connecting rod 348, causing it to swing around the first support member 347, driving the support shaft 3481 to slide in the support rod sliding hole 34111, and finally driving the first sliding rod 341 to rotate. The manual lever 349 maintains a horizontal or fixed angle during operation and will not jump up and down or twist; the operating force is transmitted smoothly and the feel is good; avoiding jamming or difficulty in operation caused by lever wobbling. The pull rod connector 3412 is parallel to the second hypotenuse of the V-shaped connecting rod 348, forming a parallelogram mechanism to ensure stable motion trajectory; the first and second support members 3410 form a double column structure to improve the overall rigidity of the manual mechanism; the manual pull rod 349 does not shake or deflect during operation, improving the human-machine experience; the double support members and the pull rod connector 3412 form a spatially stable structure with strong resistance to lateral forces, avoiding deformation or damage caused by external forces.

[0059] In another embodiment, the sliding drive component 34 further includes a slide bar limiting member 3413, located at the end of the first slide rail 35 and / or the second slide rail 36, to limit the movement of the first slide bar 341 and / or the second slide bar 344. The slide bar limiting member 3413 is a mechanical stop structure used to limit the movement range of the sliding component, such as being configured as a fixed limiting block; the slide bar limiting member 3413 may be provided only on the first slide rail 35 or the second slide rail 36, or it may be provided on both, providing dual limiting protection. Specifically, by limiting the sliding stroke of the first sliding seat 342 and the second sliding seat 345, the swing angle of the first slide bar 341 and the second slide bar 344 is indirectly limited; when the sliding seat moves to the end of the slide rail, it touches the slide bar limiting member 3413 to stop the movement, the first slide bar 341 stops rotating, and the sliding frame is in place. Specifically, the sliding drive component 343 pulls the first sliding rod 341, and the first sliding seat 342 slides to the right along the first slide rail 35. When it reaches the upper end of the first slide rail 35, it touches the sliding rod limit component 3413, the movement stops, and the sliding frame is fully unfolded.

[0060] In one optional embodiment, the fixed frame 31 includes a fixed pedal 311 and two oppositely arranged fixed frames 312, with the two ends of the fixed pedal 311 fixed between the two fixed frames 312 in the longitudinal direction; the top and bottom ends of the fixed frames 312 are respectively provided with a top limiting member 3121 and a bottom limiting member;

[0061] The sliding frame includes an upper frame 32 and a lower frame 33. The upper frame 32 includes an upper pedal 321 and two opposing upper support frames 322, which are located at both ends of the upper pedal 321 along its length. The upper frame 32 has an upper limit hole 323 with a preset height, and a top limiting member 3121 is located inside the upper limit hole 323 to limit the maximum sliding stroke of the upper frame 32.

[0062] The lower frame 33 includes a lower pedal 331 and two opposing lower support frames 332, with the two lower support frames 332 located at both ends of the lower pedal 331 along its length. The lower frame 33 has a lower limit hole 333 with a preset height, and a bottom limiter 3122 is located inside the lower limit hole 333 to limit the maximum sliding stroke of the lower frame 33.

[0063] Fixed treads 311 form the intermediate step surface of the evacuation ladder for passenger passage; the material is a non-slip metal plate (such as patterned aluminum plate, stainless steel), composite material, etc.; both ends of its length are fixedly connected between two fixed frames 312; the fixed frames 312 are vertically arranged frame structures, such as parallelograms or rectangles, located on both sides of the fixed treads 311 to support them. Top limiting member 3121 is located on the inner side of the top of the fixed frame 312, and bottom limiting member 3122 is located on the inner side of the bottom of the fixed frame 312, and can be set as a pin, boss, or welded block, etc.; used to embed into the limiting holes of the upper / lower frame 33 to limit its sliding limit.

[0064] The upper frame 32 includes an upper pedal 321 and two upper support frames 322. The upper support frames 322 are located at both ends of the upper pedal 321 along its length, preferably at the bottom of the upper frame 32 facing downwards, forming an inverted "U" shape. They are arranged vertically, parallel to the fixed frame 312, and have a first slide rail 35 and a second slide rail 36 on their back side. An upper limit hole 323 is provided on the upper support frame 322, extending vertically, and can be an oblong or rectangular hole. When the upper frame 32 slides upwards to its limit position, the top limiting member 3121 abuts against the bottom edge of the upper limit hole 323, preventing... To prevent it from moving upwards; similarly, the lower frame 33 includes a lower pedal 331 and two lower support frames 332, preferably the lower support frames 332 are located at the top of the lower frame 33, forming a U-shaped structure; the lower support frames 332 are located at both ends of the lower pedal 331 in the length direction, vertically arranged and parallel to the fixing block 111; a slide rail is provided on its inner side; the lower limit hole 333 is located on the lower support frame 332 and extends vertically, such as being a rectangular hole or an oblong hole, when the lower frame 33 slides downwards to the limit position, the bottom limit member 3122 abuts against the top edge of the lower limit hole 333, preventing it from moving downwards further. Both the top limiting member 3121 and the bottom limiting member 3122 are L-shaped plates. The L-shaped plate of the top limiting member 3121 has its opening facing downwards, while the L-shaped plate of the bottom limiting member 3122 has its opening facing upwards. The L-shaped plate of the top limiting member 3121 abuts against the bottom edge of the upper limiting hole 323, and the L-shaped plate of the bottom limiting member 3122 abuts against the top edge of the lower limiting hole 333. Through the cooperation of the limiting members and the limiting holes, it is ensured that each deployment reaches the designated position, achieving precise and reliable stroke control; effectively avoiding structural damage caused by drive overshoot or control system failure.

[0065] It is understandable that the upper support frame 322 and the lower support frame 332 can be set as parallelogram structures respectively, and the fixed frame 312 is also set as a parallelogram structure, so that the upper frame 32 and the lower frame 33 can be raised and lowered diagonally. When the pedal is unfolded, it automatically extends outward and downward to extend the horizontal distance and facilitate docking with the ground or platform.

[0066] Furthermore, it also includes a sliding guide component 37, which includes:

[0067] Guide rails 371 are located on both sides of the lateral side of any upper support frame 322 or lower support frame 332, and extend along the length of the upper support frame 322 or lower support frame 332.

[0068] The roller 372 is rotatably connected to the top and bottom of the two fixed frames 312. The roller 372 and the guide rail 371 cooperate to guide the sliding of the upper frame 32 and the lower frame 33 relative to the fixed frame 31.

[0069] Guide rails 371 are located on the left and right inner sides of the support frame, preferably on both the upper support frame 322 and the lower support frame 332. The guide rails 371 extend in the length direction of the upper support frame 322 or the lower support frame 332, i.e., obliquely. They can be configured as convex guide rails, such as T-shaped, dovetail-shaped, or V-shaped. The guide rails 371 serve as the rolling path for the rollers 372, guiding the sliding frame to move along a predetermined trajectory. The rollers 372 are rotatably connected to the top and bottom of the two fixed frames 312, i.e., the top and bottom of the left fixed frame 312, the top and bottom of the right fixed frame 312. Rotational connection is achieved through a pivot or bearing. They contact and roll with the guide rails 371, bear the lateral load and part of the weight of the sliding frame, reduce sliding friction, and improve operational smoothness. The top roller 372 restricts the swaying of the upper frame 32 when it moves upward; the bottom roller 372 restricts the swaying of the lower frame 33 when it moves downward; rollers 372 and slide rails are provided on both the left and right sides to effectively prevent the sliding frame from twisting or swaying. When the upper frame 32 slides upward, the guide slide rails 371 on the left and right sides of the upper support frame 322 move upward accordingly, contacting and rolling with the rollers 372 at the top of the fixed frame 312. The rollers 372 roll along the slide rails, providing lateral support and guidance; when the lower frame 33 slides downward, the guide slide rails 371 of the lower support frame 332 move downward, rolling in cooperation with the rollers 372 at the bottom of the fixed frame 312 to achieve smooth retraction.

[0070] In another embodiment, the mobile device 20 includes:

[0071] Two sets of oppositely arranged linear slide rails 21 are fixed laterally to the bottom of the frame 10 along the vehicle body;

[0072] The linear slider 22 assembly includes a linear slider 22 and a sliding bracket 23. The linear slider 22 cooperates with the linear slide rail 21 and can move along the linear slide rail 21. One end of the sliding bracket 23 is fixed to the linear slider 22, and the other end is fixed to the evacuation ladder device 30.

[0073] The linear motion drive component 24 is connected at one end to the frame component 10 and at the other end to the sliding bracket 23. It is used to drive the sliding bracket 23 to drive the evacuation ladder device 30 to extend or retract laterally along the vehicle body.

[0074] Two sets of linear slide rails 21 are fixed to the bottom of the frame assembly 10 and are symmetrically arranged; they provide a guide path for the linear slider 22 to ensure that the movement trajectory is straight; the linear slider 22 is precisely matched with the linear slide rail 21 and can slide freely along it; one end of the sliding bracket 23 is fixedly connected to the linear slider 22 (such as bolt connection); the other end is fixedly connected to the evacuation ladder device 30; the sliding bracket 23 drives the entire evacuation ladder device 30 to move laterally along the linear slide rail 21, and the linear movement drive component 24 provides lateral pulling force or pushing force, which can be set as an electric push rod or hydraulic cylinder to drive the sliding bracket 23 to extend or retract, thereby driving the evacuation ladder device 30 to the position.

[0075] In another embodiment, a protective cover device 40 is also included, comprising:

[0076] The protective cover 41 has a hollow closed cavity with an opening at the front end. The moving device 20 and the evacuation ladder device 30 are located in the hollow closed cavity. The top of the protective cover 41 is connected to the frame assembly 10.

[0077] The cover plate 42 is located laterally along the front end of the protective cover 41 and can slide out or retract along the cavity of the protective cover 41 to close or open the protective cover 41.

[0078] The protective cover 41 is a hollow closed cavity with an opening at the front end, such as an embedded box. The cross-section can be rectangular or arc-shaped to fit the shape of the vehicle body. It preferably consists of a top sealing plate 411, a side sealing plate 412, and a bottom sealing plate. The internal space is used to accommodate the mobile device 20 and the evacuation ladder device 30. The top is connected to the frame assembly 10, such as by bolts or welding. The cover plate 42 covers the opening of the protective cover 41 and can slide out or retract along the cavity of the protective cover 41 to achieve closure or opening. When not in use, the opening is closed to prevent dust, rain, snow, and foreign objects from entering. When in use, it opens automatically without obstructing the deployment of the evacuation ladder.

[0079] Specifically, the protective cover device 40 also includes a cover plate 42 drive assembly, located on both sides of the frame assembly 10 along the longitudinal direction of the vehicle body; the cover plate 42 drive assembly includes:

[0080] The cover plate pivot seat 43 is located on the frame assembly 10;

[0081] The cover plate pivot arm 44 is connected at one end to the cover plate pivot seat 43 and at the other end to the cover plate 42;

[0082] The cover plate drive component 45 has its fixed end hinged to the inner wall of the protective cover body 41 and its telescopic end hinged to the cover plate pivot arm 44. The cover plate drive component 45 extends and retracts to drive the cover plate pivot arm 44 to drive the cover plate 42 to rotate around the cover plate pivot seat 43, thereby closing or opening.

[0083] The cover plate pivot seat 43 serves as a rotation fulcrum, supporting the cover plate pivot arm 44; it may have a pin hole structure to ensure the pivot arm can rotate freely; it is arranged longitudinally along both sides of the frame to provide installation space for the pivot arm. One end of the cover plate pivot arm 44 is connected to the cover plate pivot seat 43 (forming a rotary pair); the other end is connected to the cover plate 42, serving as a force transmission lever to convert the linear motion of the driving component into the rotational motion of the cover plate 42; when the cover plate driving component 45 extends to push the pivot arm, the cover plate 42 opens; when the cover plate driving component 45 retracts to pull the pivot arm, the cover plate 42 closes.

[0084] The specific opening process is as follows: The control system issues a "open cover 42" command, the cover drive component 45 (such as an electric push rod) begins to retract, the thrust acts on the cover pivot arm 44, the pivot arm rotates around the cover pivot seat 43, the pivot arm drives the cover 42 to swing inward around the pivot seat, exposing the front opening of the protective cover; the position sensor 46 detects that the cover 42 is fully open, triggering the next step. Unlike the sliding cover 42, it uses rotational motion, occupies less space, and has a more compact structure.

[0085] In an optional embodiment, the protective cover device 40 further includes:

[0086] Position sensor 46 is located on the frame assembly 10. Position sensor 46 is used to send a cover plate 42 switch signal when the cover plate pivot arm 44 touches or leaves position sensor 46. Position sensor 46 can be configured as a limit switch. When the measured component (such as the pivot arm) touches its trigger rod, the internal contacts actuate and output an electrical signal. During its movement, it will touch or leave the trigger rod of the limit switch. The actual state of cover plate 42 is indirectly reflected by the position change of the pivot arm. When cover plate 42 is fully opened, the pivot arm touches the "open position" limit switch and sends a "cover plate 42 is open" signal.

[0087] In one embodiment, the mobile device 20 further includes:

[0088] The first locking bolt 25 is located on the sliding bracket 23;

[0089] The first electronic lock 26 and the second electronic lock 27 are arranged laterally on the frame assembly 10 along the vehicle body. The first electronic lock 26 is located at the minimum travel distance of the moving device 20, and the second electronic lock 27 is located at the maximum travel distance of the moving device 20.

[0090] When the first locking bolt 25 is engaged and locked with the first electronic lock 26 or the second electronic lock 27, a position signal of the moving device 20 is sent.

[0091] The first bolt 25 is fixed to the sliding bracket 23 and moves with the sliding bracket 23. As a locking actuator, it is inserted into the locking mechanism of the electronic lock to achieve mechanical locking. The first electronic lock 26 and the second electronic lock 27 are intelligent locks with electronic locking and signal feedback functions. The first electronic lock 26 is located at the minimum travel distance, corresponding to the retracted position (stored state); the second electronic lock 27 is located at the maximum travel distance, corresponding to the extended position (deployed state). This achieves dual locking in both the retracted and extended positions, ensuring the stability of both extreme positions. The electronic lock has both "mechanical locking" and "status feedback" functions, with a high degree of integration. This significantly improves security and enhances system operability.

[0092] Furthermore, the protective cover device 40 also includes:

[0093] The second bolt 28 is located at the top edge of the cover plate 42;

[0094] The third electronic lock 29 is located at the front end of the frame assembly 10 along the transverse direction of the vehicle body. It is used to send a switch signal to the cover plate 42 when the second bolt 28 and the third electronic lock 29 are locked together.

[0095] And / or, electromagnetic door catch plate 210 and electromagnetic redundant lock 211, electromagnetic door catch plate 210 is located at the top edge of cover plate 42; electromagnetic redundant lock 211 is located at the front end of frame component 10 along the transverse direction of the vehicle body, and is used to output cover plate 42 opening and closing signal when electromagnetic door catch plate 210 and electromagnetic redundant lock 211 are locked together.

[0096] The second bolt 28 is located at the top edge of the cover plate 42, usually away from the connection side between the cover plate 42 and the protective cover. As a mechanical locking actuator, it is inserted into the third electronic lock 29 to achieve locking. The third electronic lock 29 is located at the front end of the frame assembly 10 along the transverse direction of the vehicle body and is aligned with the second bolt 28 when it is in the closed position.

[0097] Furthermore, the electromagnetic door catch plate 210 is located at the top edge of the cover plate 42; it can be made of ferromagnetic material (such as soft iron) or permanent magnet; the electromagnetic redundant lock 211 is located at the front end of the frame, corresponding to the door catch plate; it generates magnetic force after being energized, attracting the door catch plate; as a second locking mechanism, it forms redundant protection with the third electronic lock 29; it prevents the cover plate 42 from opening accidentally while the vehicle is in motion, avoiding safety accidents; it is especially suitable for high-speed trains and high-vibration environments; and it enhances the reliability of the system.

[0098] The specific operation process is as follows: The unlocking signal is output through the vehicle body control room, the electromagnetic redundant lock 211 is unlocked, the first electronic lock 26, the second electronic lock 27 and the third electronic lock 29 are all unlocked and the unlocking signal is fed back. After receiving the unlocking signal from the electromechanical lock, the cover plate drive 45 in the protective cover 41 retracts the cylinder push rod, pulls the cover plate 42 assembly inward and opens it until it touches the position sensor 46 and outputs the cover plate 42 assembly opening signal. When the limit switch outputs the unlocking signal, the sliding drive 343 works to push out the moving device 20 and the evacuation ladder device 30. The moving device 20 and the evacuation ladder device 30 are fixed together by bolts. After the sliding drive 343 works, the linear slider 22 on the moving device 20 moves on the linear slide rail 21 on the frame assembly 10, and at the same time the first locking bolt 25 leaves the first electronic lock 26. When the first locking bolt 25 touches the second electronic lock 27 again, it is relocked and a locking signal is fed back. The extension action of the moving device 20 is completed. When the sliding drive component 343 receives a signal, the telescopic rod pushes the V-shaped connecting rod 348 to rotate counterclockwise. Simultaneously, the first slide rod 341 and the second slide rod 344 rotate clockwise. The first sliding seat 342 and the second sliding seat 345, mounted on the first slide rod 341 and the second slide rod 344, move on the guide rail 371 via V-shaped rollers 372, thereby causing the upper frame 32 to move upward and the lower frame 33 to move downward. V-shaped guide rails are respectively mounted on the upper frame 32 and the lower frame 33, which can cooperate with and move in conjunction with the eight V-shaped rollers 372 mounted on the fixed frame 31.

[0099] The vehicle's main control room outputs a signal to retract the evacuation device, automatically unlocking the first electronic lock 26, the second electronic lock 27, and the third electronic lock 29. Then, the sliding drive 343 starts working, pushing the V-shaped connecting rod 348 clockwise, causing the first slide rod 341 and the second slide rod 344 to rotate counterclockwise, thus retracting the evacuation ladder. After the sliding drive 343 is fully extended, it outputs a signal, and the V-shaped connecting rod 348 automatically locks at its dead point. The linear motion drive component 24 on the moving device 20 receives the signal and retracts, disengaging the first bolt 25 from the second electronic lock 27 and locking it after moving to the first electronic lock 26. The first electronic lock 26 sends a locking signal, and the cover plate drive component 45 receives the locking signal from the first electronic lock 26 and extends the cover plate 42 assembly. The second bolt 28 on the cover plate 42 assembly locks with the third electronic lock 29, and the electromagnetic redundant lock 211 and the electromagnetic door suction plate 210 send a locking feedback signal to the vehicle's main control room, completing the locking process.

[0100] This application also provides a rail vehicle, including:

[0101] The vehicle body, including the side doors and the manual lever 202;

[0102] The side door evacuation device 100 of any of the above embodiments is located below the vehicle body and is correspondingly arranged with the side door; the vehicle body manual lever 202 is connected to the first electronic lock 26, the second electronic lock 27 and the third electronic lock 29 of the side door evacuation device 100 respectively, and is used to unlock the first electronic lock 26, the second electronic lock 27 and the third electronic lock 29.

[0103] When the train makes an emergency stop and experiences a power or gas outage, the main control room cannot issue an unlocking signal, and the electromagnetic redundant lock 211 and cylinders all fail; however, the electromechanical locks remain locked. After the train stops, the evacuation device needs to be unlocked at the side door frame 200 via the manual lever 202. Pulling the manual lever upwards unlocks all electromechanical locks. The support cylinder of the cover plate 42 assembly fails and no longer provides resistance, allowing the cover plate 42 assembly to be opened manually. Automatic and manual control can be switched between each other; failure of the automatic mode does not affect manual operation, and the automatic control mode can be locked by the manual mechanism without affecting its use.

[0104] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0105] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A side door evacuation device, characterized in that, include: The frame consists of a skeleton, with the top used for fixing it to the vehicle body; A mobile device, one end of which is connected to the frame and the other end of which is connected to the evacuation ladder device, is used to drive the evacuation ladder device to extend and retract in the horizontal direction; An evacuation ladder device includes a fixed frame, a sliding frame, and a sliding drive component. The sliding frames are located on the upper and lower sides of the fixed frame, and both the fixed frame and the sliding frames have treads, forming a multi-step continuous stair structure. One end of the sliding drive component is connected to each of the sliding frames, and the other end is connected to the fixed frame, for driving the upper and lower sliding frames to move up and down for retraction and extension. Each of the aforementioned sliding frames is provided with a first slide rail extending along the length direction on the side of the vehicle body that is laterally close to the vehicle body; the sliding drive component further includes: The first slide rod has a first sliding seat hinged to its top and bottom ends, and the first sliding seat cooperates with the first slide rail; the middle part of the first slide rod is rotatably connected to the fixed frame, and the middle part of the first slide rod is also provided with a support rod extending obliquely downward and away from the first slide rod, and the support rod has a support rod sliding hole extending along the length direction. A sliding drive component, wherein the fixed end of the sliding drive component is hinged to the side of the fixed frame near the vehicle body, and the telescopic end of the sliding drive component is located in the sliding hole of the support rod; the sliding drive component extends or retracts, driving the telescopic end to slide in the sliding hole of the support rod, causing the first slide rod to rotate counterclockwise or clockwise around the fixed frame, driving the first sliding seat to slide on the first slide rail, and driving the upper and lower sliding frames to retract or extend synchronously; The sliding frame includes an upper frame and a lower frame. The upper frame includes an upper pedal and two oppositely arranged upper support frames. The lower frame includes a lower pedal and two oppositely arranged lower support frames. Guide rails are located on both sides of the upper support frame or the lower support frame, and extend along the length of the upper support frame or the lower support frame.

2. The side door evacuation device according to claim 1, characterized in that, Each of the aforementioned sliding frames is further provided with a second slide rail extending along the length direction on the side of the vehicle body that is laterally close to the vehicle body; the first slide rail and the second slide rail are spaced apart; the sliding drive component further includes: The second slide rod has a second sliding seat hinged to its top and bottom ends, and the second sliding seat cooperates with the second slide rail; the middle part of the second slide rod is rotatably connected to the fixed frame. The connecting rod has its two ends hinged to the first slide rod and the second slide rod respectively in the longitudinal direction; the connecting rod drives the second slide rod to move synchronously with the first slide rod.

3. The side door evacuation device according to claim 1, characterized in that, The sliding drive component further includes: The first support member is located on the fixed frame and extends downward; The V-shaped connecting rod has its bottom end rotatably connected to the first support member. The end of the first inclined side of the V-shaped connecting rod is provided with a support shaft. The support shaft is located in the sliding hole of the support rod and is slidably engaged with the sliding hole of the support rod. The support shaft is rotatably connected to the telescopic end of the sliding drive member. The sliding drive member can drive the V-shaped connecting rod to rotate counterclockwise or clockwise, thereby driving the support shaft to slide in the sliding hole of the support rod. A manual pull rod is hinged to the end of the second inclined side of the V-shaped connecting rod, used to drive the V-shaped connecting rod to rotate clockwise or counterclockwise around the first support member, drive the support shaft to slide in the sliding hole of the support rod, and drive the first sliding rod to rotate counterclockwise or clockwise around the fixed frame.

4. The side door evacuation device according to claim 3, characterized in that, The sliding drive component further includes: The second support member is located on the fixed frame and extends downward, and is arranged parallel to the first support member; The pull rod connector is hinged at one end to the second support member and at the other end to the manual pull rod, and the pull rod connector is arranged parallel to the second inclined side of the V-shaped connecting rod.

5. The side door evacuation device according to claim 2, characterized in that, The sliding drive component further includes: A slider limiting component is located at the end of the first slide rail and / or the second slide rail to limit the movement of the first slider and / or the second slider.

6. The side door evacuation device according to claim 1, characterized in that, The fixed frame includes a fixed pedal and two oppositely arranged fixed frames, with both ends of the fixed pedal fixed between the two fixed frames along its length; the top and bottom of each fixed frame are respectively provided with a top limiting member and a bottom limiting member. The two upper support frames are located at both ends of the upper pedal along its length; the upper frame has an upper limit hole of a preset length, and the top limiting member is located in the upper limit hole to limit the maximum sliding stroke of the upper frame; The two lower support frames are located at both ends of the lower pedal along its length; the lower frame has a lower limiting hole of a preset length, and the bottom limiting member is located in the lower limiting hole to limit the maximum sliding stroke of the lower frame.

7. The side door evacuation device according to claim 6, characterized in that, It also includes a sliding guide component, the sliding guide component comprising: The rollers are rotatably connected to the top and bottom of the two fixed frames. The rollers cooperate with the guide rails to guide the sliding of the upper frame and the lower frame relative to the fixed frames.

8. The side door evacuation device according to claim 1, characterized in that, The mobile device includes: Two sets of opposing linear slide rails are fixed laterally to the bottom of the frame assembly along the vehicle body; A linear slider assembly includes a linear slider and a sliding bracket. The linear slider cooperates with the linear slide rail and can move along the linear slide rail. One end of the sliding bracket is fixed to the linear slider, and the other end is fixed to the evacuation ladder device. A linear motion drive component is connected at one end to the frame and at the other end to the sliding bracket, used to drive the sliding bracket to extend or retract the evacuation ladder device laterally along the vehicle body.

9. The side door evacuation device according to claim 1, characterized in that, It also includes a protective cover device, including: The protective cover has a hollow closed cavity with an opening at the front end. The moving device and the evacuation ladder device are located in the hollow closed cavity. The top of the protective cover is connected to the frame. The cover plate is located laterally along the front end of the protective cover and can slide out or retract along the cavity of the protective cover to close or open the protective cover.

10. The side door evacuation device according to claim 9, characterized in that, The protective cover device further includes a cover plate driving assembly, located on both sides of the frame along the longitudinal direction of the vehicle body; the cover plate driving assembly includes: The cover plate pivot seat is located on the frame assembly; The cover plate pivot arm has one end connected to the cover plate pivot seat and the other end connected to the cover plate; The cover plate drive has a fixed end hinged to the inner wall of the protective cover and a telescopic end hinged to the cover plate pivot arm. The cover plate drive extends and retracts to drive the cover plate pivot arm to rotate the cover plate around the cover plate pivot seat, thereby closing or opening the cover plate.

11. The side door evacuation device according to claim 10, characterized in that, The protective cover device also includes: A position sensor is located on the frame assembly; the position sensor is used to send a cover plate opening / closing signal when the cover plate pivot arm touches or leaves the position sensor.

12. The side door evacuation device according to claim 8, characterized in that, The mobile device also includes: The first locking bolt is located on the sliding bracket; A first electronic lock and a second electronic lock are spaced apart on the frame assembly along the lateral direction of the vehicle body. The first electronic lock is located at the minimum travel distance of the moving device, and the second electronic lock is located at the maximum travel distance of the moving device. When the first bolt is engaged and locked with the first electronic lock or the second electronic lock, the position signal of the moving device is sent.

13. The side door evacuation device according to claim 10, characterized in that, The protective cover device also includes: The second bolt is located at the top edge of the cover plate; The third electronic lock is located laterally along the front end of the frame and is used to send a cover plate opening signal when the second bolt is engaged and locked with the third electronic lock. And / or, an electromagnetic door catcher and an electromagnetic redundant lock, wherein the electromagnetic door catcher is located at the top edge of the cover plate; the electromagnetic redundant lock is located laterally along the vehicle body at the front end of the frame assembly, and is used to output a cover plate opening / closing signal when the electromagnetic door catcher and the electromagnetic redundant lock are engaged and locked.

14. A rail vehicle, characterized in that, include: The vehicle body, including the side doors; The side door evacuation device according to any one of claims 1-13 is located below the vehicle body and is arranged corresponding to the side door.

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