Evacuation device and equipment of railway vehicle and railway vehicle

Abstract

The invention belongs to the technical field of emergency escape devices, and provides an evacuation device and equipment of a railway vehicle and the railway vehicle. The device comprises a frame beam assembly which is fixedly arranged at the bottom of a cabin of the railway vehicle; the first extension assembly is in sliding connection with the frame beam assembly through a first sliding connection assembly; the second extension assembly is in sliding connection with the first extension assembly through a second sliding connection assembly; a plurality of steps are fixedly arranged on the step ladder assembly, the step ladder assembly is used for forming an escape channel, and the step ladder assembly is rotationally connected with the second extension assembly; and a first drive assembly and a second drive assembly. The whole emergency escape device can be completely stored at the bottom of a carriage, the structure is compact, the occupied space is small, the structural strength of the device is high, the arrangement speed of an escape channel is high, and the use safety is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of emergency escape devices, and particularly relates to an evacuation device and equipment for rail vehicles and a rail vehicle. Background Art

[0002] Rail vehicles, such as subways, light rails, etc., are transportation tools specifically designed to run on railway or tram tracks. They usually consist of structures such as a car body, a transmission system, a control system, and a passenger / cargo compartment. When an accident occurs during the operation of a rail vehicle, an emergency escape device is required to evacuate passengers from the carriage to the outside of the vehicle. However, since the distance between the escape door of a rail vehicle and the ground is often relatively high, emergency escape equipment is needed to assist passengers in evacuating.

[0003] The existing emergency exits of rail vehicles are usually located at the head and tail ends of the entire train. In case of an emergency, escape ladders can be lowered at the front and rear of the train for passengers to escape. Most of the existing escape assistance devices need to use devices such as airbags and ropes to form a slideway, and the time required from the storage state to the completion of the layout to form an escape passage is relatively long, and the layout method is complex, resulting in a slow evacuation speed of passengers and low safety. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide an evacuation device for rail vehicles, aiming to solve the problems that the time required from the storage state to the completion of the layout to form an escape passage of the existing emergency evacuation device for rail vehicles is relatively long, the layout method is complex, the evacuation speed of passengers is slow, and the safety is relatively low.

[0005] The embodiments of the present application are implemented as follows: an evacuation device for rail vehicles is provided. The evacuation device for rail vehicles includes: a frame beam assembly fixedly arranged at the bottom of the carriage of the rail vehicle; a first extension assembly slidably connected to the frame beam assembly through a first sliding connection assembly; a second extension assembly slidably connected to the first extension assembly through a second sliding connection assembly; a step ladder assembly fixedly provided with a plurality of escape steps for forming an escape passage, and the step ladder assembly is rotatably connected to the second extension assembly; a first driving assembly for changing the relative position of the second extension assembly with respect to the frame beam assembly; and a second driving assembly for changing the rotation angle of the step ladder assembly with respect to the second extension assembly.

[0006] Preferably, the first driving assembly includes a base and a telescopic driving end. The base is fixedly connected to the frame beam assembly, and the telescopic driving end is fixedly connected to the second extension assembly. The first driving assembly controls the relative position of the second extension assembly with respect to the frame beam assembly by changing the telescopic length of the telescopic driving end relative to the base.

[0007] Preferably, the evacuation device of the rail vehicle further includes: a handrail assembly, which includes a handle member and a linkage member; the handle member is rotatably connected to the second extension assembly, and one end of the linkage member is rotatably connected to the stair assembly, and the other end is rotatably connected to the handle member.

[0008] Preferably, at least one level of spare steps is provided on the stair assembly. Both ends of the spare steps are fixedly connected to the flipping brackets, and the flipping brackets are rotatably connected to the stair assembly. The spare steps are used to connect with the escape steps on the stair assembly to increase the number of steps in the escape passage.

[0009] Preferably, there are two levels of spare steps, namely a first spare step and a second spare step. The first spare step is rotatably connected to the stair assembly through two U-shaped flipping brackets fixedly connected to both sides thereof, and the second spare step is rotatably connected to the stair assembly through two U-shaped flipping brackets fixedly connected to both sides thereof.

[0010] Preferably, the evacuation device of the rail vehicle further includes: a locking assembly, which is used to lock the rotation angle of the stair assembly with respect to the second extension assembly and also used to lock the relative position of the second extension assembly with respect to the frame beam assembly.

[0011] Preferably, the locking assembly is fixedly arranged on the frame beam assembly, and the telescopic locking end is provided on the locking assembly; the telescopic locking end locks the rotation angle of the stair assembly with respect to the second extension assembly by extending and engaging with the stair assembly.

[0012] Preferably, the evacuation device of the rail vehicle further includes: a protective plate; the protective plate is rotatably connected to the frame beam assembly and is used to form a partition shield between the evacuation device of the rail vehicle and the external environment of the rail vehicle.

[0013] Another object of the embodiment of the present application is to provide an evacuation device for a rail vehicle. The evacuation device includes two evacuation devices for rail vehicles as described above, which are denoted as a first evacuation device and a second evacuation device; the frame beam assemblies of the first evacuation device and the second evacuation device are fixedly connected to each other to form a structural beam, and the first evacuation device and the second evacuation device are symmetrically arranged in the extending direction of the structural beam.

[0014] Another object of the embodiments of the present application is to provide a rail vehicle, and an evacuation device of the rail vehicle is arranged at the bottom of the emergency escape door of the rail vehicle as described above.

[0015] An evacuation device of a rail vehicle provided by the embodiments of the present application is slidably connected to a frame beam assembly through a first extension assembly, and a second extension assembly slides on the first extension assembly. The setting of these two slide rail structures enables the step ladder to be completely folded at the bottom of the rail vehicle when not in use, and can be quickly pushed out by a first drive assembly in an emergency and rotated under the drive of a second drive assembly, so that the escape steps on the step ladder assembly are rotated to a horizontal angle, thereby forming an escape passage to assist passengers in escaping. The overall layout speed of the device is fast, and the occupied space is small in the storage state. The device can automatically expand to form an escape passage through the first drive assembly and the second drive assembly, without too much manual operation, and the safety factor in use is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structure diagram of an evacuation device of a rail vehicle provided by the embodiments of the present application; Figure 2 It is a three-dimensional structure diagram of a frame beam assembly provided by the embodiments of the present application; Figure 3 It is a side view of a frame beam assembly provided by the embodiments of the present application; Figure 4 It is a connection schematic diagram of a frame beam assembly and a first extension assembly provided by the embodiments of the present application; Figure 5 It is a three-dimensional structure diagram of a first extension assembly provided by the embodiments of the present application; Figure 6 It is a connection schematic diagram of a first extension assembly and a second extension assembly provided by the embodiments of the present application; Figure 7 It is a three-dimensional structure diagram of a second extension assembly provided by the embodiments of the present application; Figure 8 It is a three-dimensional structure diagram of a step ladder assembly provided by the embodiments of the present application; Figure 9 It is another three-dimensional structure diagram of a step ladder assembly provided by the embodiments of the present application; Figure 10 It is a connection schematic diagram of a step ladder assembly and a second extension assembly provided by the embodiments of the present application; Figure 11 It is a side view of a second drive assembly provided by the embodiments of the present application; Figure 12 It is a three-dimensional structure diagram of a second drive assembly provided by the embodiments of the present application; Figure 13 The side view of an armrest assembly provided by an embodiment of the present application; Figure 14 The three-dimensional structure diagram of an armrest assembly provided by an embodiment of the present application; Figure 15 The top view of a first driving assembly provided by an embodiment of the present application; Figure 16 The three-dimensional structure diagram of a first driving assembly provided by an embodiment of the present application; Figure 17 The top view of a locking assembly provided by an embodiment of the present application; Figure 18 is Figure 17 The partial enlarged view at A in; Figure 19 The three-dimensional structure diagram of a protective plate provided by an embodiment of the present application; Figure 20 The side view of an evacuation device of a rail vehicle provided by an embodiment of the present application; Figure 21 The three-dimensional structure diagram of an evacuation device of a rail vehicle provided by an embodiment of the present application; Figure 22 The top view of an evacuation device of a rail vehicle provided by an embodiment of the present application.

[0017] Wherein: 10, the first extension assembly; 11, the first sliding connection assembly; 20, the second extension assembly; 21, the second sliding connection assembly; 30, the frame beam assembly; 40, the step ladder assembly; 41, the escape steps; 50, the first driving assembly; 51, the base; 52, the telescopic driving end; 60, the second driving assembly; 61, the first spare step; 62, the second spare step; 63, the flipping bracket; 70, the armrest assembly; 71, the handle member; 72, the linkage rod; 80, the locking assembly; 81, the telescopic locking end; 90, the protective plate; 91, the first evacuation device; 92, the second evacuation device. Detailed implementation manners

[0018] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] The following describes the specific implementation of the present application in detail with reference to specific embodiments.

[0020] In one embodiment, as Figure 1 shown, a structure diagram of an evacuation device of a rail vehicle is provided, and the evacuation device of the rail vehicle includes: The frame beam assembly 30 is fixedly arranged at the bottom of the cabin of the rail vehicle; the first extension assembly 10 is slidably connected to the frame beam assembly 30 through a first sliding connection assembly; the second extension assembly 20 is slidably connected to the first extension assembly 10 through a second sliding connection assembly; the step ladder assembly 40 is fixedly provided with a plurality of escape steps for forming an escape passage, and the step ladder assembly 40 is rotatably connected to the second extension assembly 20; the first driving assembly 50 is used to change the relative position of the second extension assembly 20 relative to the frame beam assembly 30; the second driving assembly 60 is used to change the rotation angle of the step ladder assembly 40 relative to the second extension assembly 20.

[0021] In the embodiment of the present application, the structure of the frame beam assembly 30 can be as Figure 2 shown, and the connection relationship between the first extension assembly 10 and the frame beam assembly 30 can be as Figure 2 and Figure 3 shown. Both the first sliding connection assembly 11 and the second sliding connection assembly 21 can be structures such as wheel rails and sliding rails that can slidably connect components. As Figure 4 shown, a schematic structural diagram of the first extension assembly 10 is provided. The first extension assembly 10 is connected to the frame beam assembly 30 through the first sliding connection group 11. For example, the first sliding connection assembly 11 adopts a wheel rail structure, and the movement of the first extension assembly 10 is positioned by means of a plurality of pulleys provided on the first extension assembly 10 cooperating with the sliding track provided on the frame beam assembly 30. The first sliding connection assembly 11 can have a limiting function, so that the first extension assembly 10 can only perform translational movement in the extending direction of the sliding connection assembly track. The connection relationship between the second extension assembly 20 and the first extension assembly 10 can be as Figure 6 shown, and the two can also be connected to each other through a pulley track. As Figure 7 shown, a schematic structural diagram of the second extension assembly 20 is provided. Similarly, the second sliding connection assembly 21 can also have a limiting function, so that the second extension assembly 20 can only perform translational movement in the extending direction of the sliding connection assembly track, so that the second extension assembly 20 is slidably connected to the first extension assembly 10.

[0022] In the embodiment of the present application, the advantage of adopting a sliding connection is that sliding can provide rapid expansion and contraction; the connection through a sliding connection structure formed by, for example, a sliding rail and a wheel rail has the advantages of high connection structure strength, fast expansion and contraction speed between the sliding connection components, and the sliding connection components can support each other to maintain the stability of the entire platform.

[0023] As Figure 8As shown, as a preferred embodiment of the present application, at least one level of spare steps is further provided on the stair assembly 40. Both ends of the spare steps are fixedly connected to the flipping bracket 63, and the flipping bracket 63 is rotatably connected to the stair assembly 40. The spare steps are used to connect with the escape steps 41 on the stair assembly 40 to increase the number of steps of the escape passage.

[0024] As Figure 9 shown, a schematic diagram of a stair assembly is provided. A number of escape steps 41 are provided on the stair assembly 40. The stair assembly 40 can be rotatably connected to the second extension assembly 20, and the connection method can be as Figure 10 shown.

[0025] In the embodiment of the present application, when the passengers still cannot be lowered to the ground after the escape steps 41 on the stair assembly 40 are fully arranged, spare steps can be used, and the spare steps are rotatably connected to the stair assembly. Preferably, a flipping handle can be provided on the spare steps to facilitate manually flipping and arranging the spare steps. The spare steps can be hidden inside the stair assembly when not in use to reduce space occupation.

[0026] As a preferred embodiment of the present application, two levels of spare steps are provided, namely the first spare step 61 and the second spare step 62. The first spare step 61 is rotatably connected to the stair assembly 40 through two U-shaped flipping brackets 63 fixedly connected to both sides thereof, and the second spare step 62 is rotatably connected to the stair assembly 40 through two U-shaped flipping brackets 63 fixedly connected to both sides thereof.

[0027] In the embodiment of the present application, the lengths of the U-shaped flipping brackets 63 on both sides of the two levels of spare steps are different, so that the two levels of spare steps can cooperate to further increase the number of steps of the stair assembly 40.

[0028] In one embodiment, the first driving assembly 50 can be arranged on the frame beam assembly 30 for changing the relative position of the second extension assembly 20 with respect to the frame beam assembly 30. As Figure 11 and Figure 12 shown, a schematic diagram of the connection relationship of the second driving assembly 60 is provided. The second driving assembly 60 can be arranged on the second extension assembly 20, and devices such as a push cylinder or a rotary motor can be used to change the rotation angle of the stair assembly 40 with respect to the second extension assembly 20.

[0029] In an embodiment of the present application, the first driving assembly 50 is a cylinder structure, including a base 51 and a telescopic driving end 52. The telescopic driving end 52 is connected to the second extension assembly 20 and controls its sliding position. The second extension assembly 20 can be quickly pushed to the maximum value of its stroke by the cylinder device and pushed out from the inside of the frame beam assembly 30, so as to facilitate the rotational unfolding of the stair assembly 40 rotatably connected to the second extension assembly 20, thereby forming an escape passage.

[0030] In the embodiment of the present application, through the sliding connection between the first extension assembly 10 and the frame beam assembly 30, and the sliding between the second extension assembly 20 and the first extension assembly 10, the setting of these two slide rail structures enables the stairs to be completely folded at the bottom of the rail vehicle in the unused state, and can be quickly pushed out by the first driving assembly 50 in case of emergency, and rotated under the drive of the second driving assembly 60, so that the escape steps 41 on the stair assembly 40 are rotated to a horizontal angle, thereby forming an escape passage to assist passengers in escaping. The overall layout speed of the device is fast, and the occupied space is small in the storage state. The device can automatically unfold to form an escape passage without too much manual operation, and the safety factor in use is higher.

[0031] As Figure 13 and Figure 14 shown, as a preferred embodiment of the present application, the evacuation device of the rail vehicle further includes: A handrail assembly 70, the handrail assembly includes a handle member 71 and a linkage member 72; the handle member 71 is rotatably connected to the second extension assembly 20, and one end of the linkage member 72 is rotatably connected to the stair assembly 40, and the other end is rotatably connected to the handle member 71.

[0032] In the embodiment of the present application, the handle member 71 is rotatably connected to an extension rod provided at the bottom of the second extension assembly 20. The handle member 71 is connected to the stair assembly 40 through a linkage member. When the second driving assembly 60 pushes the stair assembly 40 to change its angle, the handle member 71 also rotates synchronously with the stair assembly 40 and thus rises synchronously without manual operation. Through the handle member 71, the safety of passengers during escape is further improved, and the handle member can be deployed or folded synchronously with the stairs without manual operation, and the deployment efficiency is higher.

[0033] As Figure 15 and Figure 16As shown, as a preferred embodiment of the present application, the first driving assembly 50 includes a base 51 and a telescopic driving end 52. The base 51 is fixedly connected to the frame beam assembly 30, and the telescopic driving end 52 is fixedly connected to the second extension assembly 20. The first driving assembly 50 controls the relative position of the second extension assembly 20 with respect to the frame beam assembly 30 by changing the telescopic length of the telescopic driving end 52 relative to the base 51.

[0034] In the embodiment of the present application, the first driving assembly 50 can adopt a telescopic cylinder to push the relative sliding of the second extension assembly 20 and the first extension assembly 10, and push the relative sliding of the first extension assembly 10 and the frame beam assembly 30. There is no limitation on the sequence of the two relative slides formed among the above three structures. Through the two-stage sliding, the step ladder assembly can be completely stored inside the rail vehicle, occupying a small space.

[0035] As Figure 17 and Figure 18 As shown, as a preferred embodiment of the present application, the evacuation device of the rail vehicle further includes a locking assembly 80. The locking assembly 80 is used to lock the rotation angle of the step ladder assembly 40 relative to the second extension assembly 20, and is also used to lock the relative position of the second extension assembly 20 relative to the frame beam assembly 30.

[0036] In the embodiment of the present application, the locking assembly 80 can be used to improve the stability and structural strength of the steps after deployment, and increase the safety of the device during use. The locking assembly 80 can adopt structures such as manual or automatic bolts and latches to lock the relative position.

[0037] As Figure 18 As shown, as a preferred embodiment of the present application, the locking assembly 80 is fixedly arranged on the frame beam assembly 30, and a telescopic locking end 81 is arranged on the locking assembly 80. The telescopic locking end 81 locks the rotation angle of the step ladder assembly 40 relative to the second extension assembly by extending and engaging with the step ladder assembly 40.

[0038] In the embodiment of the present application, the locking assembly 80 can adopt a telescopic structure. When its elongation reaches the maximum, it can push against the step ladder assembly 40, and make the second extension assembly 20 slide to the maximum travel of the sliding connection rail of the first extension assembly 10, and make the first extension assembly 10 slide to the maximum travel of the sliding connection rail of the frame beam assembly 30. Then, through the pushing action, the relative position of the second extension assembly 20 relative to the frame beam assembly 30 is locked. The telescopic locking end 81 that can be telescoped can be engaged with the escape steps 41 of the step ladder assembly 40, thereby preventing the rotation of the step ladder assembly 40.

[0039] As Figure 19 shown, as a preferred embodiment of the present application, the evacuation device of the rail vehicle further includes: a protection plate 90; the protection plate 90 is rotatably connected to the frame beam assembly 30, and is used to form a partition shield between the evacuation device of the rail vehicle and the external environment of the rail vehicle.

[0040] In the embodiment of the present application, the protection plate 90 can be rotated manually or automatically. When the evacuation device is not enabled, the protection plate 90 can form a unified plane with the car body shell of the rail vehicle in a closed state, thereby forming a partition shield between the evacuation device and the external environment of the rail vehicle. When the evacuation device is enabled, the protection plate 90 can be opened manually or automatically, and is convenient for sliding out from the bottom of the rail vehicle in the stair assembly 40 to form an escape passage.

[0041] In an embodiment of the present application, the evacuation device of the rail vehicle can have two states, namely a storage state and a deployment state. In the storage state, the first extension assembly 10, the second extension assembly 20, and the stair assembly 40 are all hidden inside the rail vehicle, and are isolated from the external environment by the protection plate 90. In the deployment state, the first extension assembly 10 and the second extension assembly 20 both slide out from the bottom of the rail vehicle, the stair assembly 40 rotates to an angle where the escape steps 41 are horizontal with the bottom surface, and the locking assembly 80 fixes the position of the stair assembly 40, thereby forming an escape passage. The first drive assembly 50 and the second drive assembly 60 can be activated manually or automatically by a control device in sequence according to time to drive the movement of the relevant components.

[0042] As Figure 20 or Figure 21 shown, as a preferred embodiment of the present application, an evacuation device for a rail vehicle is further provided. The evacuation device includes two evacuation devices of the rail vehicle as described above, which are denoted as the first evacuation device 91 and the second evacuation device 92; the frame beam assemblies of the first evacuation device 91 and the second evacuation device 92 are fixedly connected to each other to form a structural beam, and the first evacuation device 91 and the second evacuation device 92 are symmetrically arranged in the extending direction of the structural beam.

[0043] In the embodiment of the present application, as Figure 22 shown, the evacuation device for a rail vehicle can include two sets of evacuation devices. The evacuation device for a rail vehicle can be arranged in the width direction of the rail vehicle, so that the two sets of evacuation devices are symmetrically arranged at the bottom of the escape door of the rail vehicle.

[0044] In the embodiment of the present application, the evacuation device of the rail vehicle can be completely folded at the bottom of the rail vehicle in the unused state, and can quickly form an escape passage by the driving assembly in case of emergency to assist passengers in escaping. The overall layout speed of the device is fast, and the occupied space is small in the storage state. The device can automatically unfold to form an escape passage through the first driving assembly 50 and the second driving assembly 60, without too much manual operation, and the safety factor of use is higher.

[0045] The embodiment of the present application also provides a rail vehicle, and the evacuation device of the rail vehicle as described above is arranged at the bottom of the emergency escape door of the rail vehicle.

[0046] In the embodiment of the present application, the evacuation device arranged at the bottom of the rail vehicle can be completely folded at the bottom of the rail vehicle in the unused state, and can quickly form an escape passage by the driving assembly in case of emergency to assist passengers in escaping. The overall layout speed of the device is fast, and the occupied space is small in the storage state. The device can automatically unfold to form an escape passage through the first driving assembly 50 and the second driving assembly 60, without too much manual operation, and the safety factor of use is higher.

[0047] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An evacuation device for an orbital vehicle, characterized in that, The evacuation device of the rail vehicle includes: A frame beam assembly, which is fixedly arranged at the bottom of the cabin of the rail vehicle; A first extension assembly, which is slidably connected to the frame beam assembly through a first sliding connection assembly; A second extension assembly, which is slidably connected to the first extension assembly through a second sliding connection assembly; A step ladder assembly, on which several escape steps are fixedly arranged to form an escape passage, and the step ladder assembly is rotatably connected to the second extension assembly; A first drive assembly, which is used to change the relative position of the second extension assembly relative to the frame beam assembly; A second drive assembly, which is used to change the rotation angle of the step ladder assembly relative to the second extension assembly.

2. The evacuation device for a rail vehicle according to claim 1, characterized in that, The first drive assembly includes a base and a telescopic drive end. The base is fixedly connected to the frame beam assembly, and the telescopic drive end is fixedly connected to the second extension assembly. The first drive assembly controls the relative position of the second extension assembly relative to the frame beam assembly by changing the telescopic length of the telescopic drive end relative to the base.

3. The evacuation device for a rail vehicle according to claim 1, characterized in that, The evacuation device of the rail vehicle further includes: An armrest assembly, which includes a handle part and a linkage part; The handle part is rotatably connected to the second extension assembly, one end of the linkage part is rotatably connected to the step ladder assembly, and the other end is rotatably connected to the handle part.

4. The evacuation device for a rail vehicle according to claim 1, characterized in that, At least one spare step is also arranged on the step ladder assembly. Both ends of the spare step are fixedly connected to a flipping bracket, and the flipping bracket is rotatably connected to the step ladder assembly. The spare step is used to connect with the escape steps to increase the number of steps of the escape passage.

5. The evacuation device for a rail vehicle according to claim 4, characterized in that, There are two spare steps, namely a first spare step and a second spare step. The first spare step is rotatably connected to the step ladder assembly through two U-shaped flipping brackets fixedly connected to its two sides, and the second spare step is rotatably connected to the step ladder assembly through two U-shaped flipping brackets fixedly connected to its two sides.

6. The evacuation device for a rail vehicle according to claim 1, characterized in that, The evacuation device of the rail vehicle further includes: a locking assembly, which is used to lock the rotation angle of the step ladder assembly relative to the second extension assembly and also used to lock the relative position of the second extension assembly relative to the frame beam assembly.

7. The evacuation device for a rail vehicle according to claim 6, characterized in that, The locking assembly is fixedly arranged on the frame beam assembly, and a telescopic locking end is arranged on the locking assembly; The telescopic locking end locks the rotation angle of the step ladder assembly relative to the second extension assembly by extending and engaging with the step ladder assembly.

8. The evacuation device for a rail vehicle according to claim 1, characterized in that, The evacuation device of the rail vehicle further includes: a protective plate; The protective plate is rotatably connected to the frame beam assembly and is used to form a partition shield between the evacuation device of the rail vehicle and the external environment of the rail vehicle.

9. An evacuation device for an orbital vehicle, characterized in that, The evacuation device includes two evacuation devices of the rail vehicle as described in any one of claims 1 to 8, which are denoted as the first evacuation device and the second evacuation device; the frame beam assemblies of the first evacuation device and the frame beam assemblies of the second evacuation device are fixedly connected to each other to form a structural beam, and the first evacuation device and the second evacuation device are symmetrically arranged in the extending direction of the structural beam.

10. An orbital vehicle, characterized in that, The bottom of the emergency escape door of the rail vehicle is provided with an evacuation device of the rail vehicle as described in any one of claims 1 to 8.

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