Vehicle-mounted evacuation apparatus and railway vehicle

Abstract

A vehicle-mounted evacuation apparatus and a railway vehicle. The structure of the vehicle-mounted evacuation apparatus comprises a hoisting frame (3), which is mounted at a lower part of a vehicle body chassis (7) of a railway vehicle; a chassis tray (2), which is movably mounted on the hoisting frame (3), wherein the chassis tray (2) can extend out of a lower part of the vehicle body chassis (7) in the width direction of the railway vehicle; a lifting part (4), which is disposed on an upper part of the chassis tray (2), an upper part of the lifting part (4) being provided with a platform part (5), wherein the lifting part (4) can lift the platform part (5) to be at the same level as a floor surface of the railway vehicle; and sleeving ramp parts (1), which are foldably disposed at a lower part of the platform part (5). The sleeving ramp parts (1) can extend out of the lower part of the platform part (5) in the length direction of the railway vehicle. When the sleeving ramp parts (1) are unfolded, the sleeving ramp parts (1) can connect the platform part (5) and an evacuation platform (8). The described vehicle-mounted evacuation apparatus and the railway vehicle can solve the problem of how to meet evacuation requirements of height differences between railway vehicles and different lines.

Description

Vehicle-mounted evacuation device and rail vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202410164885.2, filed with the Chinese Patent Office on February 5, 2024, entitled “A Vehicle-Mounted Evacuation Device and Rail Vehicle,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of rail vehicles, and in particular to a vehicle-mounted evacuation device and a rail vehicle. Background Art

[0004] With the increasing development of subway and national railway networks, intercity and urban lines, which connect urban areas with trunk railways, have gradually increased their proportion in railway construction in recent years. Intercity and urban lines can connect subway networks with national railway networks. Their technical characteristics dictate that these intercity and urban lines must accommodate the coexistence of subway, intercity, urban, and national railway vehicles.

[0005] To reduce construction costs, tunnel cross-sections for intercity and urban lines are typically smaller. To ensure the wider national railway vehicles can operate within these tunnels, the evacuation platforms, originally located at the level of the vehicle floor, need to be lowered. This results in a height difference of more than one meter between the evacuation platform and the vehicle floor when urban and intercity vehicles enter the tunnel. This height difference can vary significantly within a single line, and considering the superelevation of the outer rails, multiple sections requiring evacuation may exist within the same project.

[0006] Therefore, how to meet the evacuation needs of the height difference between rail vehicles and different lines so that passengers can be safely transferred from the vehicle to the evacuation platform has become a design pain point for current intercity and urban vehicles.

[0007] Summary of the Invention

[0008] In view of this, the purpose of the present application is to provide a vehicle-mounted evacuation device and a rail vehicle, so as to solve the problem of how to meet the evacuation needs of the height difference between the rail vehicle and different lines.

[0009] In the first aspect, an embodiment of the present application provides a vehicle-mounted evacuation device, which is installed on a rail vehicle, wherein the vehicle-mounted evacuation device includes: a lifting frame, which is installed on the lower part of the car body chassis of the rail vehicle; a chassis tray, which is movably installed on the lifting frame, and the chassis tray can extend from the lower part of the car body chassis in the width direction of the rail vehicle; a lifting part, which is arranged on the upper part of the chassis tray, and the upper part of the lifting part is provided with a platform part, and the lifting part can lift the platform part to be flush with the floor surface of the rail vehicle; and a telescopic ramp part, which is foldably arranged at the lower part of the platform part, and the telescopic ramp part can extend from the lower part of the platform part in the length direction of the rail vehicle. When the telescopic ramp part is unfolded, the telescopic ramp part can connect the platform part with the evacuation platform.

[0010] Preferably, the telescoping ramp portion includes: a first telescoping ramp, which is foldably arranged at the lower part of the platform portion, and the first telescoping ramp can be extended in a first direction; a second telescoping ramp, which is foldably arranged at the lower part of the platform portion, and the second telescoping ramp can be extended in a second direction; a first push-out gas support, which is installed at the lower part of the platform portion, and the first push-out gas support is connected to the first end of the first telescoping ramp, and the first push-out gas support is used to drive the first telescoping ramp to move in the first direction; a second push-out gas support, which is installed at the lower part of the platform portion, and the second push-out gas support is connected to the third end of the second telescoping ramp, and the second push-out gas support is used to drive the second telescoping ramp to move in the second direction; a first recovery winch, which is installed at the top of the chassis tray, and the first recovery winch is connected to the second end of the first telescoping ramp by a steel wire rope; and a second recovery winch, which is installed at the top of the chassis pallet, and the second recovery winch is connected to the fourth end of the second telescoping ramp by a steel wire rope.

[0011] Preferably, a slide rail portion is installed at the lower part of the platform portion, and the slide rail portion moves synchronously with the platform portion. The first overlapping ramp and the second overlapping ramp are slidably installed on the inner side of the slide rail portion. The slide rail portion is formed with openings in the first direction and the second direction for the first overlapping ramp and the second overlapping ramp to extend out. The first overlapping ramp and the second overlapping ramp can rotate relative to the slide rail portion after extending a preset length.

[0012] Preferably, a slide rail is provided on the inner side of the slide rail portion, pulleys are installed on both sides of the first end of the first stacked ramp, and after the first stacked ramp extends a preset length, the first stacked ramp can rotate around the pulleys on both sides of the first end, and pulleys are installed on both sides of the third end of the second stacked ramp, and after the second stacked ramp extends a preset length, the second stacked ramp can rotate around the pulleys on both sides of the third end.

[0013] Preferably, the lifting part includes: a base plate, which is arranged on the top of the chassis tray, and the base plate is provided with a waist-shaped hole; a driving motor push rod, the end of the driving motor push rod is passed through the waist-shaped hole, and the driving motor push rod can slide in the waist-shaped hole; and a double-fork arm support rod, the bottom end of the double-fork arm support rod is connected to the base plate and the end of the driving motor push rod, and the top end of the double-fork arm support rod is slidably connected to the platform part.

[0014] Preferably, the vehicle-mounted evacuation device also includes an anti-slip rod portion, which includes a double-fork arm structure linked to the double-fork arm support rod. When the double-fork arm support rod lifts the platform portion to be flush with the floor surface of the rail vehicle, the anti-slip rod portion unfolds and covers the side of the platform portion in the width direction of the rail vehicle.

[0015] Preferably, a fixed skirt is installed at the upper end of the chassis tray in the width direction of the rail vehicle, and the fixed skirt is arranged on the side of the chassis tray away from the hoisting frame.

[0016] Preferably, the lifting frame includes: a slide groove portion, in which the chassis tray is slidably installed; and a plurality of connecting rods, the top ends of the plurality of connecting rods are connected to the bottom of the vehicle body chassis, and the bottom ends of the plurality of connecting rods are connected to the top of the slide groove portion.

[0017] Preferably, the vehicle-mounted evacuation device further comprises an external protective cover, a plurality of connecting rods are passed through the external protective cover and connected to the vehicle body chassis, and the external protective cover is formed with an opening on the side in the width direction of the rail vehicle for allowing the chassis tray to extend out.

[0018] In a second aspect, an embodiment of the present application provides a rail vehicle, wherein the rail vehicle includes the on-board evacuation device as described in the first aspect.

[0019] The vehicle-mounted evacuation device and rail vehicle of the embodiment of the present application have a hoisting frame installed at the lower part of the vehicle body chassis of the rail vehicle, and the chassis tray is movably installed on the hoisting frame. When passengers need to move to the evacuation platform, the chassis tray can extend from the lower part of the vehicle body chassis in the width direction of the rail vehicle. The lifting part is provided on the upper part of the chassis tray, and the upper part of the lifting part is provided with a platform part. The lifting part can lift the platform part to be flush with the floor surface of the rail vehicle to facilitate passengers to move onto the platform part. The telescopic ramp part is foldably provided at the lower part of the platform part. When passengers need to move to the evacuation platform, the telescopic ramp part can extend from the lower part of the platform part in the length direction of the rail vehicle. When the telescopic ramp part is unfolded, it can connect the platform part and the evacuation platform, so that passengers can move from the platform part to the evacuation platform via the telescopic ramp part. In the case of coping with the height difference of different lines, the telescopic ramp part can be extended to different lengths to adapt to the height of different evacuation platforms. This can effectively solve the problem of how to meet the evacuation needs of the height difference between the rail vehicle and different lines.

[0020] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] FIG1 is a schematic diagram of a vehicle-mounted evacuation device and a vehicle according to the present invention.

[0023] FIG2 is a schematic diagram of the vehicle-mounted evacuation device and the vehicle according to the present invention from another angle.

[0024] FIG3 is a schematic diagram of the vehicle-mounted evacuation device and the vehicle according to the present invention from another angle.

[0025] FIG4 is a schematic diagram of a vehicle-mounted evacuation device according to the present invention.

[0026] FIG5 is a schematic diagram of the telescopic ramp portion of the vehicle-mounted evacuation device according to the present invention in a folded state.

[0027] FIG6 is a schematic diagram of a partial structure of a vehicle-mounted evacuation device according to the present invention.

[0028] Figure markings: 1-overlapping ramp part; 10-pulley; 11-first overlapping ramp; 12-second overlapping ramp; 13-first push-out gas support; 14-second push-out gas support; 15-first recovery winch; 16-second recovery winch; 2-underframe tray; 20-driving component; 21-fixed skirt; 3-hoisting frame; 31-slide groove part; 32-connecting rod; 4-lifting part; 41-base plate; 410-waist-shaped hole; 42-drive motor push rod; 43-double fork arm support rod; 44-anti-slip rod part; 5-platform part; 6-slide rail part; 7-vehicle chassis; 8-evacuation platform. DETAILED DESCRIPTION

[0029] The following detailed description is provided to help the reader gain a comprehensive understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein. Rather, except for operations that must occur in a particular order, changes may be made that will be apparent upon understanding the disclosure of this application. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity.

[0030] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0031] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, it may be directly “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on,” “directly connected to,” “directly coupled to,” “directly over,” or “directly covering” another element, there may be no other elements intervening therebetween.

[0032] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0033] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are used only to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Thus, a first member, component, region, layer, or portion in the examples described herein may also be referred to as a second member, component, region, layer, or portion without departing from the teachings of the examples.

[0034] For ease of description, spatial relational terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element would subsequently be "below" or "lower" relative to the other element. Thus, the term "above" includes both the orientations "above" and "below," depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0035] The terms used herein are intended to describe various examples only and are not intended to limit the examples. Unless the context clearly indicates otherwise, the singular form is intended to include the plural form. The terms "include," "comprising," and "having" list the presence of stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0036] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include changes in shapes that occur during manufacturing.

[0037] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0038] As shown in FIG1 to FIG6 , a vehicle-mounted evacuation device provided according to a first aspect of the present invention is installed on a rail vehicle. The vehicle-mounted evacuation device includes a hoisting frame 3 , a chassis tray 2 , a lifting portion 4 and a telescopic ramp portion 1 .

[0039] In the following description, the specific structure of the above components of the vehicle-mounted evacuation device and the connection relationship of the above components will be described in detail with reference to Figures 1 to 6.

[0040] As shown in Figures 1 to 6, in an embodiment, the on-board evacuation device can be installed at the lower part of a rail vehicle. Specifically, the hoisting frame 3 can be installed at the lower part of the vehicle body chassis 7 of the rail vehicle. The chassis tray 2 can be movably installed in the hoisting frame 3. When passengers need to move to the evacuation platform 8, the chassis tray 2 can extend from the lower part of the vehicle body chassis 7 in the width direction of the rail vehicle. The lifting part 4 can be provided on the upper part of the chassis tray 2. A platform part 5 can be provided on the upper part of the lifting part 4. The lifting part 4 is used to drive the platform part 5 to lift and lower, and the lifting part 4 can lift the platform part 5 to be flush with the floor surface of the rail vehicle to facilitate passengers to move to the platform part 5. The telescopic ramp part 1 is foldably provided at the lower part of the platform part 5. When passengers need to move to the evacuation platform 8, the telescopic ramp portion 1 can extend from the lower portion of the platform portion 5 in the longitudinal direction of the rail vehicle. When deployed, the telescopic ramp portion 1 can connect the platform portion 5 and the evacuation platform 8, allowing passengers to move from the platform portion 5 to the evacuation platform 8 via the telescopic ramp portion 1. When addressing the height differences of different lines, the telescopic ramp portion 1 can be extended to different lengths to adapt to the heights of different evacuation platforms 8.

[0041] Preferably, as shown in Figures 1 to 3, in an embodiment, the lifting frame 3 may include a slide portion 31 and a plurality of connecting rods 32. Among them, the plurality of connecting rods 32 may be arranged in two rows. The top ends of the plurality of connecting rods 32 may be welded to the bottom of the vehicle body chassis 7, and the bottom ends of the plurality of connecting rods 32 may be connected to the top of the slide portion 31. Preferably, the connecting rods 32 may be integrally formed with the slide portion 31. The slide portion 31 may be two plates arranged along the width direction of the rail vehicle, and the opposing surfaces of the two plates may be formed with slides. The chassis tray 2 may be approximately a rectangular plate, and the chassis tray 2 may be slidably installed in the slide portion 31, that is, slidably arranged between the two plates. This enables the chassis tray 2 to slide in the width direction of the rail vehicle to extend out of the lower portion of the vehicle body chassis 7.

[0042] Preferably, as shown in Figures 4 to 6, in an embodiment, the lifting part 4 may include a base plate 41, a drive motor push rod 42 and a double fork arm support rod 43. The base plate 41 may be approximately a rectangular plate, and the two base plates 41 may be welded to the two long sides of the top surface of the chassis tray 2 respectively. A waist-shaped hole 410 may be provided at the end of the base plate 41 close to the first stacking ramp 11. The drive motor push rod 42 may be arranged between the two base plates 41, and the two ends of the drive motor push rod 42 may be respectively passed through the waist-shaped holes 410 of the two base plates 41. The drive motor push rod 42 may be connected to the drive motor fixed to the top surface of the chassis tray 2, so that the drive motor push rod 42 can slide back and forth in the waist-shaped hole 410. The double fork arm support rod 43 may be arranged on both sides of the drive platform part 5 in the width direction, for driving the platform part 5 to rise or fall. As shown in Figure 4, the bottom ends of the double-wishbone support rods 43 can be hinged to the base plate 41 and the ends of the drive motor push rods 42, respectively, while the top ends of the double-wishbone support rods 43 can be hinged and slidably connected to the sides of the platform portion 5, respectively, so that the drive motor push rods 42 can drive the double-wishbone support rods 43 to expand and lift the platform portion 5 during movement. The double-wishbone support structure has a large weight capacity and strong impact resistance, making the double-wishbone support rods 43 more stable.

[0043] Furthermore, preferably, as shown in Figures 3 and 4, in an embodiment, the vehicle-mounted evacuation device also includes an anti-slip rod portion 44. The anti-slip rod portion 44 may include a double fork arm structure that can be linked with the double fork arm support rod 43. When the double fork arm support rod 43 lifts the platform portion 5, the double fork arm structure of the anti-slip rod portion 44 is synchronously deployed with the double fork arm support rod 43. When the platform portion 5 is lifted to be flush with the floor surface of the rail vehicle, the anti-slip rod portion 44 is deployed to a preset height. The anti-slip rod portion 44 can block the side of the platform portion 5 in the width direction of the rail vehicle to prevent passengers from falling on the platform portion 5. Preferably, the anti-slip rod portion 44 can be set on the side of the platform portion 5 away from the vehicle body chassis 7. The double fork arm structure of the anti-slip rod portion 44 can also be provided with vertical telescopic rods on both sides in the length direction of the rail vehicle. The bottom of the telescopic rod can be connected to the chassis tray 2, and the top of the telescopic rod can be connected to the two ends of the cross bar. The top end of the double-wishbone structure of the anti-slip rod portion 44 can be movably connected to the cross bar.

[0044] Preferably, as shown in Figures 1 to 5, in an embodiment, the telescopic ramp portion 1 may include a first telescopic ramp 11, a second telescopic ramp 12, a first push-out gas strut 13, a second push-out gas strut 14, a first recovery winch 15, and a second recovery winch 16. Among them, the first telescopic ramp 11 can be folded and arranged at the lower part of the platform portion 5. The first telescopic ramp 11 can be extended in a first direction, and the first direction can be the direction toward the front of the vehicle (can be the right direction as shown in Figure 4). The second telescopic ramp 12 can be folded and arranged at the lower part of the platform portion 5. The second telescopic ramp 12 can be extended in a second direction, and the second direction can be the direction toward the rear of the vehicle (can be the left direction as shown in Figure 4). The on-board evacuation device adopts a double ramp structure, which can guide passengers to evacuate to either end of the rail vehicle, and the ramp structure is in the same direction as the evacuation passage, which will not cause the problem of encroaching on the evacuation passage and can meet the fire protection requirements for the net passing width of the evacuation passage.

[0045] Preferably, as shown in FIG5 , in an embodiment, the first telescoping ramp 11 and the second telescoping ramp 12 can be arranged in a row along the length of the platform portion 5 when folded. The first push-out gas strut 13 and the second push-out gas strut 14 can be installed at the lower portion of the platform portion 5. Preferably, a motor can be welded and fixed to the lower portion of the platform portion 5, and the first push-out gas strut 13 and the second push-out gas strut 14 can be connected to the motor. The first push-out gas strut 13 can be connected to the first end of the first telescoping ramp 11 (which can be the left end as shown in FIG5 ), and the first push-out gas strut 13 is used to drive the first telescoping ramp 11 to move in the first direction. The second push-out gas strut 14 can be connected to the third end of the second telescoping ramp 12 (which can be the right end as shown in FIG5 ), and the second push-out gas strut 14 is used to drive the second telescoping ramp 12 to move in the second direction. After being pushed out, the first telescoping ramp 11 and the second telescoping ramp 12 will unfold under the action of their own gravity and finally overlap the surface of the evacuation platform 8. The first recovery winch 15 and the second recovery winch 16 can be screwed to the center of the top of the chassis tray 2. The first recovery winch 15 can be connected to the second end of the first telescoping ramp 11 (which can be the right end as shown in Figure 4) via a steel wire rope, while the second recovery winch 16 can be connected to the fourth end of the second telescoping ramp 12 (which can be the left end as shown in Figure 4) via a steel wire rope. The first recovery winch 15 and the second recovery winch 16 are used to retract the first and second telescoping ramps 11, 12 to their folded positions.

[0046] More preferably, as shown in FIG1 , in an embodiment, a slide rail portion 6 may be installed at the lower portion of the platform portion 5, and the slide rail portion 6 may be raised and lowered synchronously with the platform portion 5. The first telescopic ramp 11 and the second telescopic ramp 12 may be slidably installed in the slide rail portion 6. The slide rail portion 6 may be formed with openings in the first direction and the second direction for the first telescopic ramp 11 and the second telescopic ramp 12 to extend out. After extending out of the slide rail portion 6 by a preset length, the first telescopic ramp 11 and the second telescopic ramp 12 can be rotated relative to the slide rail portion 6 (they may be deflected downward) to achieve overlap with the top surface of the evacuation platform 8.

[0047] Specifically, as shown in Figures 1 and 5, in an embodiment, a slide rail may be provided on the inner side of the slide rail portion 6. The slide rail portion 6 may be a plate welded to the lower portion of both sides of the platform portion 5 in the width direction, with slide grooves formed on the opposing surfaces of the two plates. Pulleys 10 that engage with the slide grooves are provided on both side surfaces of the first and second telescopic ramps 11, 12 in the width direction. The number of pulleys 10 may be multiple, allowing the first and second telescopic ramps 11, 12 to slide within the slide rail portion 6. Furthermore, pulleys 10 may be mounted on either side of the first end of the first telescopic ramp 11, serving as rotating shafts. After the first telescopic ramp 11 is extended to a predetermined length, the first telescopic ramp 11 can rotate around the pulleys 10 on either side of the first end. Pulleys 10 may be mounted on either side of the third end of the second telescopic ramp 12, serving as rotating shafts. After the second telescopic ramp 12 is extended to a predetermined length, the second telescopic ramp 12 can rotate around the pulleys 10 on either side of the third end. More preferably, as shown in FIG6 , the slide rail portion 6 may further be provided with a guide member formed with a slope, so that the pulley 10 can roll along the slope of the guide member to play a guiding role during the deflection of the telescoping ramp.

[0048] In addition, as shown in Figures 1 and 5 , in an embodiment, a fixed skirt panel 21 may be installed at the end of the chassis tray 2 in the width direction of the rail vehicle. The fixed skirt panel 21 may be approximately rectangular in shape and may be fixed to the side of the chassis tray 2 away from the lifting frame 3 by bolts. Because the chassis tray 2 can be pushed out, the fixed skirt panel 21 can be prevented from opening, thereby adopting a fixed connection structure, thereby reducing the risk of the fixed skirt panel 21 falling off.

[0049] In addition, preferably, in an embodiment, the on-board evacuation device may further include an external protective cover (not shown). The external protective cover may be a rectangular outer shell, and the on-board evacuation device may be installed in the external protective cover in a folded state. The multiple connecting rods 32 of the lifting frame 3 may be passed through the top of the external protective cover and welded to the bottom surface of the vehicle body chassis 7. The external protective cover may be formed with an opening on the side in the width direction of the rail vehicle for the chassis tray 2 to extend out. More preferably, the external protective cover may be formed with openings on both sides in the width direction of the rail vehicle, and two on-board evacuation device bodies may be installed inside the external protective cover (that is, the on-board evacuation device may be provided on both sides of the lower part of the rail vehicle in the width direction), and the openings on both sides of the external protective cover may allow the chassis tray 2 to extend out.

[0050] In addition, as shown in FIG. 1 to FIG. 3 , a second aspect of the present invention provides a rail vehicle, which includes the on-board evacuation device as described above.

[0051] During use, the on-board evacuation device is connected to the rail vehicle's underframe 7 via the hoisting frame 3. The drive component 20 pushes the underframe tray 2 out of the hoisting frame 3, allowing it to extend below the underframe 7. The double-wishbone support rod 43 drives the platform 5 to rise flush with the rail vehicle's floor, during which the anti-slip rod 44 deploys synchronously with the double-wishbone support rod 43. The first and second push-out gas struts 13 and 14 then push out the first and second telescopic ramps 11 and 12. These ramps 11 and 12 deploy under gravity and rotate around the pulley 10, causing their top ends to connect with the platform 5 and their bottom ends to connect with the evacuation platform 8. Passengers can then move from the rail vehicle to the evacuation platform 8 via the first and second telescopic ramps 11 and 12. The retraction of the vehicle-mounted evacuation device is the opposite of its deployment. During retraction, the first and second telescopic ramps 11, 12 are retracted via the first and second recovery winches 15, 16. The vehicle-mounted evacuation device relies on gravity and its own structure to achieve adaptability to different evacuation heights. This reduces the complexity of the device, thereby lowering its failure rate, and also addresses the technical difficulty of the device identifying different height differences. Furthermore, the vehicle-mounted evacuation device utilizes a small number of electrical components and a simple operation, which can reduce the pressure on the vehicle's auxiliary power supply system.

[0052] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed in the present application, or perform equivalent replacements for some of the technical features thereof. These modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of protection of the claims.

Claims

1. A vehicle-mounted evacuation device, installed on a rail vehicle, characterized in that: The vehicle-mounted evacuation device comprises: A hoisting frame is installed at the lower part of the vehicle body underframe of the rail vehicle; an underframe tray movably mounted on the hoisting frame, the underframe tray being capable of extending below the vehicle body underframe in the width direction of the rail vehicle; a lifting portion, disposed on an upper portion of the chassis tray, wherein a platform portion is disposed on an upper portion of the lifting portion, and wherein the lifting portion is capable of lifting the platform portion to be flush with a floor surface of the rail vehicle; and The telescopic ramp portion is foldably arranged at the lower part of the platform portion. The telescopic ramp portion can extend from the lower part of the platform portion in the length direction of the rail vehicle. When the telescopic ramp portion is unfolded, the telescopic ramp portion can connect the platform portion and the evacuation platform.

2. The vehicle-mounted evacuation device according to claim 1, characterized in that: The telescoping ramp portion comprises: a first telescoping ramp, foldably disposed at a lower portion of the platform portion, the first telescoping ramp being extendable in a first direction; a second telescoping ramp, foldably disposed at a lower portion of the platform portion, the second telescoping ramp being extendable in a second direction; a first ejection gas support installed at the lower portion of the platform portion, the first ejection gas support being connected to the first end of the first telescoping ramp, and the first ejection gas support being used to drive the first telescoping ramp to move in a first direction; a second ejection gas support mounted at a lower portion of the platform portion, the second ejection gas support being connected to a third end of the second telescoping ramp, the second ejection gas support being configured to drive the second telescoping ramp to move in a second direction; a first recovery winch mounted on top of the chassis tray, the first recovery winch being connected to the second end of the first telescoping ramp via a steel wire rope; and A second recovery winch is installed on the top of the chassis tray, and the second recovery winch is connected to the fourth end of the second telescoping ramp through a steel wire rope.

3. The vehicle-mounted evacuation device according to claim 2, characterized in that: A slide rail portion is installed at the lower part of the platform portion, and the slide rail portion moves synchronously with the platform portion. The first overlapping ramp and the second overlapping ramp are slidably installed on the inner side of the slide rail portion. The slide rail portion is formed with openings in the first direction and the second direction for the first overlapping ramp and the second overlapping ramp to extend out. The first overlapping ramp and the second overlapping ramp can rotate relative to the slide rail portion after extending out a preset length.

4. The vehicle-mounted evacuation device according to claim 3, characterized in that: A slide rail is provided on the inner side of the slide rail portion, and pulleys are installed on both sides of the first end of the first stacked ramp. After the first stacked ramp extends a preset length, the first stacked ramp can rotate around the pulleys on both sides of the first end, and pulleys are installed on both sides of the third end of the second stacked ramp. After the second stacked ramp extends a preset length, the second stacked ramp can rotate around the pulleys on both sides of the third end.

5. The vehicle-mounted evacuation device according to claim 1, characterized in that: The lifting part includes: A base plate is arranged on the top of the chassis tray, and the base plate is provided with a waist-shaped hole; a driving motor push rod, the end of which is passed through the waist-shaped hole, and the driving motor push rod is capable of sliding in the waist-shaped hole; and A double-fork arm support rod, the bottom end of the double-fork arm support rod is connected to the base plate and the end of the drive motor push rod, and the top end of the double-fork arm support rod is slidably connected to the platform part.

6. The vehicle-mounted evacuation device according to claim 5, characterized in that: The on-board evacuation device also includes an anti-slip rod portion, which includes a double-fork arm structure linked to the double-fork arm support rod. When the double-fork arm support rod lifts the platform portion to be flush with the floor surface of the rail vehicle, the anti-slip rod portion is unfolded and blocks the side of the platform portion in the width direction of the rail vehicle.

7. The vehicle-mounted evacuation device according to claim 1, characterized in that: A fixed skirt is installed on the end portion of the chassis tray in the width direction of the rail vehicle. The fixed skirt is arranged on the side of the chassis tray away from the hoisting frame.

8. The vehicle-mounted evacuation device according to any one of claims 1 to 7, characterized in that: The hoisting frame comprises: a slide groove portion in which the chassis tray is slidably mounted; and A plurality of connecting rods, the top ends of the plurality of connecting rods are connected to the bottom of the vehicle body underframe, and the bottom ends of the plurality of connecting rods are connected to the top of the slide groove portion.

9. The vehicle-mounted evacuation device according to claim 8, characterized in that: The vehicle-mounted evacuation device further comprises an external protective cover, a plurality of connecting rods are passed through the external protective cover and connected to the vehicle body chassis, and an opening is formed on the side of the external protective cover in the width direction of the rail vehicle for allowing the chassis tray to extend out.

10. A rail vehicle, characterized in that: The rail vehicle comprises the on-board evacuation device according to any one of claims 1 to 9.

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