Emergency evacuation device and railway vehicle

Abstract

An emergency evacuation device (10), comprising: a fixing frame (11), wherein a first driving mechanism (41) and a second driving mechanism (42) are mounted on the fixing frame (11); a door panel (20) rotationally mounted on a doorframe (21), wherein the second driving mechanism (42) drives the door panel (20) to switch between an open state or a closed state on the doorframe (21); and a foldable ladder (30) mounted on the fixing frame (11), wherein the first driving mechanism (41) drives the foldable ladder (30) to switch between an extended state and a retracted state, a third driving mechanism (43) is mounted on the foldable ladder (30), and the third driving mechanism (43) drives the foldable ladder (30) to switch between an unfolded state and a folded state. The emergency evacuation device (10) uses the first driving mechanism (41), the second driving mechanism (42) and the third driving mechanism (43) to respectively drive the door panel (20) and the foldable ladder (30), facilitating the quick opening of the foldable ladder (30), improving escape efficiency, also improving the intelligence of equipment control, eliminating the need to build an evacuation platform along the way, and saving on infrastructure construction costs. Further provided is a railway vehicle equipped with the emergency evacuation device (10).

Description

Emergency evacuation device and rail vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application with application number 202311287614.8 filed with the Chinese Patent Office on October 7, 2023, entitled “An Emergency Evacuation Device and Rail Vehicle,” the entire contents of which are incorporated by reference into this application. Technical Field

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

[0004] The emergency evacuation device is a device equipped on rail vehicles for evacuating vehicle drivers and passengers in emergency situations. When an emergency occurs while the rail vehicle is driving and the vehicle stops, and the rail vehicle is a large distance from the ground, the emergency evacuation device needs to be lowered at the escape door after the escape door is opened, so that passengers can escape from the vehicle to the ground in time through the emergency evacuation device.

[0005] High-speed EMU trains utilize a manually retractable or foldable evacuation ladder installed inside the train. These ladders are typically stored in a supply cabinet or under the train's equipment compartment. When an emergency evacuation is needed, a crew member retrieves the ladder, opens a side door, and secures it to the doorway. The crew member then descends and secures the ladder on the ground, ensuring it's safe for passengers to exit the train one by one. This existing manual ladder system reduces escape efficiency, requires manual securing after transporting the ladder, and is time-consuming and difficult to operate. It also lacks intelligent functionality and takes up space within the train, wasting space.

[0006] Based on the above problems, it is necessary to provide an escape evacuation device that is highly intelligent, easy to operate, compact in structure, saves space in the vehicle, and has high escape efficiency.

[0007] Application Contents

[0008] The present application provides an emergency evacuation device to solve the technical problems in the prior art such as the difficulty in operation, long operation time, low intelligence level and space occupation of the evacuation device, which lead to low escape efficiency. In an emergency, the emergency evacuation device can be opened in a relatively short time to allow drivers and passengers to escape.

[0009] In a first aspect, the present application provides an emergency evacuation device, comprising:

[0010] A fixing frame is installed at the bottom of the vehicle body floor, and a first driving mechanism and a second driving mechanism are installed on the fixing frame;

[0011] The door panel is rotatably mounted on the door frame, the door frame is mounted on the bottom of the vehicle body side beam, and the second driving mechanism drives the door panel to switch between an open state and a closed state on the door frame;

[0012] A folding ladder is installed on the fixed frame, and the first driving mechanism drives the folding ladder to switch between an extended state and a retracted state; a third driving mechanism is installed on the folding ladder, and the third driving mechanism drives the folding ladder to switch between an unfolded state and a folded state.

[0013] According to the above technical features, the emergency evacuation device provided by the present application fixes the folding ladder by a fixing frame, and uses a first drive mechanism to drive the folding ladder to extend and retract, so that the folding ladder can switch between extending out of the vehicle body and retracting into the vehicle body; the folding ladder is driven by a third drive mechanism to switch between an unfolded state and a folded state; and the door panel is driven by a second drive mechanism to close or open the door frame. The emergency evacuation device has an open state and a retracted state. In the open state, the second drive mechanism first drives the door panel to open, the first drive mechanism drives the folding ladder to extend, and the third drive mechanism drives the folding ladder to unfold; in the retracted state, the third drive mechanism drives the folding ladder to fold, the first drive mechanism drives the folding ladder to retract, and the second drive mechanism drives the door panel to close the door frame. The first drive mechanism, the second drive mechanism, and the third drive mechanism are used to drive the folding ladder and the door panel respectively, which facilitates the rapid unfolding of the folding ladder and improves the efficiency of escape.

[0014] Furthermore, the fixing frame includes a column, and a clamping portion is provided on the top of the column, and the clamping portion is fixedly clamped into the fixing portion at the bottom of the vehicle body floor.

[0015] Furthermore, the top of the door frame is provided with a cross beam plate, and the cross beam plate is fixedly installed in a fixing groove at the bottom of the vehicle body side beam by bolts.

[0016] Furthermore, the fixing frame is provided with a guide mechanism, and the first and second ends of the guide mechanism are provided with a first stop portion and a second stop portion; the folding ladder is fixed with a sliding mechanism that slides between the first stop portion and the second stop portion of the guide mechanism.

[0017] Furthermore, the folding ladder includes: a folding unit having a first driving end, the first driving end is connected to the first driving mechanism, driving the folding ladder to extend and retract; the first driving end is connected to the third driving mechanism; a second driving end, the second driving end is connected to the third driving mechanism, driving the folding ladder to fold; and a pedal installed on the folding unit.

[0018] Furthermore, the folding unit has two sets, and each set of folding units includes: at least one connecting plate fixedly connected to the pedal; and at least one rotating plate rotatably connected to the connecting plate for rotating to fold the folding ladder.

[0019] Furthermore, each set of folding units includes a first connecting plate, a second connecting plate, a third connecting plate, and a fourth connecting plate, wherein the first end of the third connecting plate forms the first driving end; four pedals are fixedly connected to the first connecting plate, the second connecting plate, the third connecting plate, and the fourth connecting plate respectively;

[0020] Each set of folding units includes a first rotating plate, a second rotating plate, a third rotating plate, a fourth rotating plate, a fifth rotating plate and a sixth rotating plate; the second end of the third rotating plate forms the second driving end;

[0021] The first end and the second end of the first connecting plate are respectively connected to the first end of the first rotating plate and the first end of the second rotating plate;

[0022] The first end and the second end of the second connecting plate are respectively connected to the middle of the first rotating plate and the first end of the third rotating plate, and the middle of the second connecting plate is connected to the middle of the second rotating plate;

[0023] The first end of the third connecting plate is connected to the second end of the first rotating plate and the second rotating plate respectively, the middle of the third connecting plate is connected to the middle of the third rotating plate, and the second end of the third connecting plate is connected to the first end of the fourth rotating plate;

[0024] The first end and the middle of the fourth connecting plate are respectively connected to the second ends of the third rotating plate and the fourth rotating plate, and the second end of the fourth connecting plate is connected to the first end of the sixth rotating plate;

[0025] The first end of the fifth rotating plate is connected to the 1 / 3 of the fourth rotating plate near the first end, and the second end of the fifth rotating plate is connected to the second end of the sixth rotating plate;

[0026] The first driving mechanism drives the third connecting plate to extend and retract, and the third driving mechanism drives the third rotating plate to fold.

[0027] Furthermore, the pedal is composed of a crossbar, a connecting rod, a filling block and a tread.

[0028] Furthermore, the connecting plate and the rotating plate form four steps; the width of each step is 20cm to 35cm, the net vertical stepping width is 16cm to 18cm, and the height difference between two adjacent steps is 15cm to 18cm; after unfolding, the inclination of each step is 50° to 70°.

[0029] In a second aspect, the present application further provides a rail vehicle, comprising the emergency evacuation device as described above; wherein the door panel is locked to the door frame.

[0030] The emergency evacuation device provided by the present application uses a fixed frame to fix the folding ladder, uses a first drive mechanism to drive the folding ladder to extend and retract, so that the folding ladder can switch between extending out of the vehicle body and retracting into the vehicle body; uses a third drive mechanism to drive the folding ladder to switch between an unfolded state and a folded state; and uses a second drive mechanism to drive the door panel to close or open the door frame. The emergency evacuation device has an open state and a retracted state. In the open state, the second drive mechanism first drives the door panel to open, the first drive mechanism drives the folding ladder to extend, and the third drive mechanism drives the folding ladder to unfold; in the retracted state, the third drive mechanism drives the folding ladder to fold, the first drive mechanism drives the folding ladder to retract, and the second drive mechanism drives the door panel to close the door frame. The first drive mechanism, the second drive mechanism, and the third drive mechanism are used to drive the folding ladder and the door panel respectively, which facilitates the rapid deployment of the folding ladder and improves escape efficiency.

[0031] The emergency evacuation device of the present application is installed directly below the vehicle door and below the vehicle body. Compared to existing technologies, it does not occupy interior space. The coordination between the ladder body and the first, second, and third cylinders is rationally designed and flexible, effectively resolving the difficulty and hassle of manual operation of existing EMU escape ladders. The emergency evacuation device of the present application enables rapid deployment of the folding ladder, meeting the need for rapid escape, and significantly improves operability, safety, and intelligence. This emergency transport device eliminates the need to construct evacuation platforms along the way, saving infrastructure construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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.

[0033] FIG1 is a schematic diagram of the expanded structure of the emergency evacuation device of the present application;

[0034] FIG2 is a schematic diagram of the folded structure of the emergency evacuation device of the present application;

[0035] FIG3 is a schematic diagram of the door frame structure of the emergency evacuation device of the present application;

[0036] FIG4 is a top view of the emergency evacuation device showing the coordinated relationship between the slide rail and the pulley of the present application;

[0037] FIG5 is a schematic structural diagram of the guide mechanism of the present application;

[0038] FIG6 is a schematic structural diagram of the sliding mechanism of the present application;

[0039] FIG7 is a schematic diagram of the folding unit structure of the folding ladder of the present application;

[0040] FIG8 is a schematic diagram of the column clamping groove structure of the present application;

[0041] FIG9 is a schematic structural diagram of the open groove at the bottom of the vehicle body floor and the open rectangular groove at the bottom of the side beam of the present application.

[0042] Reference numerals: 10-emergency evacuation device; 11-fixing frame; 111-post; 112-clamping portion; 12-body floor; 121-fixing portion; 101-guide mechanism; 102-first stopper; 103-second stopper; 20-door panel; 21-door frame; 210-locking unit; 211-fixing block; 212-cross plate; 213-door panel lock; 22-cross beam; 13-side beam; 131-open rectangular groove; 30-folding ladder; 301-sliding mechanism; 302-pedal; 30 3-cross bar; 304-tread; 305-connecting rod; 306-filling block; 311-first connecting plate; 312-second connecting plate; 313-third connecting plate; 314-fourth connecting plate; 321-first rotating plate; 322-second rotating plate; 323-third rotating plate; 324-fourth rotating plate; 325-fifth rotating plate; 326-sixth rotating plate; 41-first driving mechanism; 42-second driving mechanism; 43-third driving mechanism; 44-fourth driving mechanism; 50-emergency light. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0045] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0047] The following describes an embodiment of the present application in conjunction with Figures 1 to 9.

[0048] As shown in Figures 1 and 2, an embodiment of the present application provides an emergency evacuation device 10, which primarily includes a mounting frame 11, a door panel 20, and a folding ladder 30. The mounting frame 11 has a column 111, with a clamping portion 112 disposed at the top of the column 111. Specifically, the clamping portion 112 is a U-shaped clamping groove. The clamping portion 112 is secured to a fixing portion 121 at the bottom of the vehicle floor 12 and secured thereto via bolts. Specifically, the fixing portion 121 is an open groove that receives and secures the clamping portion 112. Optionally, the clamping portion 112 may also have other shapes, such as a square, arc, or inverted triangle, that can be secured to the fixing portion 121. A first drive mechanism 41, a second drive mechanism 42, and a third drive mechanism 43 are fixedly connected to the fixed frame 11. Specifically, the second drive mechanism 42 is connected to the column 111 of the fixed frame 11. In an emergency, the second drive mechanism 42 first drives the door panel 20 to open, then the first drive mechanism 41 drives the folding ladder 30 out of the vehicle body, and finally the third drive mechanism 43 drives the folding ladder 30 to unfold.

[0049] As shown in Figures 1 and 2, the door panel 20 is rotatably mounted on the door frame 21 and is driven by a second drive mechanism 42 to realize an open state and a closed state. When the door panel 20 is opened, the door frame 21 leaves a corresponding folding ladder exit. There is a second drive mechanism 42 on each side of the door panel 20, and a lock unit 210 is provided in the middle of the door panel; the door frame 21 is fixedly mounted on the bottom of the side beam 13 of the vehicle body, and fixed blocks 211 are symmetrically arranged on both sides of the door frame 21. The two fixed blocks 211 are connected and fixed by a cross plate 212, and a door panel lock 213 matching the lock unit 210 is fixedly connected in the middle of the cross plate 212. The door frame 21 has a crossbeam 22 at the top, and a fixing slot at the bottom of the vehicle side beam 13, specifically an open rectangular slot 131. The crossbeam 22 opposes and fits over the bottom open rectangular slot 131. The crossbeam 22 and the bottom open rectangular slot 131 are fixedly connected by bolts, and the bolts are locked in the bottom open rectangular slot 131, making it difficult for the bolts to escape from the bottom open rectangular slot 131 without external force. When closing, the second drive mechanism 42 drives the door panel 20 to lock with the door panel lock 213. The door frame 21 is also connected to a fourth drive mechanism 44, the other end of which is connected to the column 111. The fourth drive mechanism 44 can further stabilize the connection between the door frame 21 and the vehicle body and provide a certain amount of auxiliary force when the door panel 20 is opened or closed. This embodiment includes a door frame skirt panel, which is configured to securely enclose the door frame 21. The edge of the door frame 21 has a lock tongue that locks to the door frame skirt panel.

[0050] The folding ladder 30 is fixedly connected to the fixed frame 11 and is driven by a first drive mechanism 41 to extend and retract from the vehicle body. As shown in Figures 3-5, a guide mechanism 101 is provided on the side of the fixed frame 11. Specifically, the guide mechanism 101 is a grooved slide rail with a first stop 102 and a second stop 103 at each end. The folding ladder 30 has a sliding mechanism 301 adapted to the guide mechanism 101. Specifically, the sliding mechanism 301 is a pulley that can slide between the first stop 102 and the second stop 103. The first stop 102 and the second stop 103 are cylindrical bodies fixedly connected to the fixed frame 11. The stops are configured to provide a safety limit for the sliding of the pulley, preventing the folding ladder 30 from sliding beyond a safe limit when sliding out or retracting. The pulleys are bolted to the side of the folding ladder 30 away from the slide rail. In this embodiment, there are two sets of pulleys, each with two pulleys, which slide in the grooves of the slide rail.

[0051] In this embodiment, the first driving mechanism 41 , the second driving mechanism 42 and the third driving mechanism 43 are driven by one of a cylinder, a hydraulic cylinder, a telescopic spring, a linear motor and a screw.

[0052] The slide rail and the pulley in this embodiment may also be formed by the cooperation of a gear and a rack.

[0053] The emergency evacuation device provided in this embodiment, as shown in Figure 5, comprises a folding ladder 30 comprising a folding unit and a step 302, which is mounted on the folding unit. The folding unit has a first drive end and a second drive end. The first drive end is connected to the first drive mechanism 41, driving the folding ladder 30 to extend or retract from the vehicle body; the second drive end is connected to the third drive mechanism 43, driving the folding ladder 30 to rotate, expand, or fold.

[0054] In this embodiment, two folding units are provided, with the pedal 302 installed between the two sets. Each folding unit has a first drive end and a second drive end. The first and second drive ends of each folding unit correspond to a first drive mechanism 41 and a third drive mechanism 43, respectively. Each first drive mechanism 41 and third drive mechanism 43 drives the folding unit. The first drive mechanism 41 is arranged horizontally, and its piston rod is connected to the first drive end of the folding unit.

[0055] The folding unit may specifically include a connecting plate and a rotating plate. The connecting plate is configured to be fixedly connected to the pedal 302. The rotating plate is rotatably connected to the connecting plate and connected to the third driving mechanism 43 to realize the expansion or folding of the folding unit.

[0056] Taking Figure 6 as an example, this embodiment features four pedals 302, with a set of folding units located on either side of each of the four pedals 302. Each folding unit includes at least a first connecting plate 311, a second connecting plate 312, a third connecting plate 313, and a fourth connecting plate 314. The first connecting plate 311, the second connecting plate 312, the third connecting plate 313, and the fourth connecting plate 314 are fixedly connected to the four pedals 302. Each folding unit also includes at least a first rotating plate 321, a second rotating plate 322, a third rotating plate 323, a fourth rotating plate 324, a fifth rotating plate 325, and a sixth rotating plate 326. The first end of the third connecting plate 313 forms a first driving end, and the first driving mechanism 41 is connected to the first end of the third connecting plate 313 for driving. The second end of the third rotating plate 323 forms a second driving end, and the third driving mechanism 43 is connected to the second end of the third rotating plate 323 for driving the folding unit.

[0057] The first and second ends of the first connecting plate 311 are connected to the first ends of the first rotating plate 321 and the second rotating plate 322, respectively. The first and second ends of the second connecting plate 312 are connected to the middle of the first rotating plate 321 and the first end of the third rotating plate 323, respectively. The middle of the second connecting plate 312 is connected to the middle of the second rotating plate 322. The first end of the third connecting plate 313 separately connects the second ends of the first rotating plate 321 and the second rotating plate 322, the middle of the third connecting plate 313 is connected to the middle of the third rotating plate 323, and the second end of the third connecting plate 313 is connected to the first end of the fourth rotating plate 324. The first end and middle of the fourth connecting plate 314 are connected to the second ends of the third rotating plate 323 and the fourth rotating plate 324, respectively. The second end of the fourth connecting plate 314 is connected to the first end of the sixth rotating plate 326. The first end of the fifth rotating plate 325 is connected to a 1 / 3 portion close to the first end of the fourth rotating plate 324 , and the second end of the fifth rotating plate 325 is connected to the second end of the sixth rotating plate 326 .

[0058] The two first drive mechanisms 41 corresponding to this folding unit each drive the two first connecting plates 311 to linearly move, extending or retracting the folding ladder 30 into the vehicle. The two third drive mechanisms 43 each drive the two third rotating plates 323 to rotate, thereby driving the rotating plates and connecting plates to move in unison, extending or retracting the folding ladder 30. When the folding ladder 30 of this embodiment is deployed, the steps 302 secured to the two first connecting plates 311 can be securely clamped to the sides of the side beams 13.

[0059] This embodiment has four steps, each with a width of 20cm-35cm, a clear vertical stepping width of 16cm-18cm, and a height difference of 15cm-18cm between adjacent steps. When deployed, each step has an inclination of 50°-70°. In this embodiment, each step has a width of 200cm, a clear vertical stepping width of 175cm, and a height difference of 200cm between adjacent steps. When deployed, each step has an inclination of 59°. The step arrangement of this embodiment fully meets the requirements of the EN14752 standard (covering the general standards for electric locomotives, rolling stock, and railway vehicles). The step 302 is 1.5m-2m long. When the folding ladder 30 is deployed, two to three people can disembark simultaneously, significantly improving evacuation efficiency compared to existing escape ladders where people must evacuate one by one.

[0060] In this embodiment, a crossbar 303 is disposed between the two sets of folding units. Two treads 304 are disposed above and below the crossbar 303. A connecting rod 305 is disposed between the crossbars 303. A filler block 306 is disposed in the gap between the connecting rod 305 and the crossbar 303, thereby forming a pedal 302. In this embodiment, each pedal has three crossbars 303 and one connecting rod 305 disposed in the middle of the crossbar.

[0061] The emergency evacuation device 10 of this embodiment is further provided with an emergency light 50 . In the event of an emergency evacuation, the emergency light 50 can provide good lighting and a good visual environment.

[0062] This embodiment also provides a rail vehicle, including the aforementioned emergency evacuation device 10. The emergency evacuation device 10 of this embodiment is disposed beneath the vehicle body and has a corresponding escape door. After the folding ladder 30 is deployed, personnel can evacuate and escape directly from the escape door. The installation of this evacuation structure in the vehicle body not only enables the rapid deployment of the folding ladder 30, meeting the need for rapid escape, but also offers the advantage of high cost-effectiveness. This approach eliminates the need to construct an evacuation platform along the route, saving significant infrastructure costs.

[0063] The control console of the rail vehicle of this embodiment is provided with a control system and a control button, the control button is connected to the control system and configured to start the control. The control system is electrically connected to the first drive mechanism 41, the second drive mechanism 42 and the third drive mechanism 43 respectively.

[0064] The control logic of the control system is as follows: when the emergency evacuation device needs to be opened, after pressing the button, the second drive mechanism 42 first drives the door panel 20 to open; then the first drive mechanism 41 drives the third connecting plate 313 to move, extending the folding ladder 30 from the ladder vehicle opening to the outside of the vehicle body, stopping at the second stop 103; finally, the third drive mechanism 43 drives the third rotating plate 323 to rotate, driving the other connecting plates and rotating plates to move, and finally, the folding ladder 30 is deployed. When the emergency evacuation device needs to be closed, the process is the opposite of opening. After pressing the button, the third drive mechanism 43 first drives the third rotating plate 323 to rotate in the opposite direction to fold the folding ladder, then the first drive mechanism 41 drives the folding ladder to retract from the ladder exit, and finally, the second drive mechanism 42 drives the door panel 20 to rotate and close to the door frame 21, sealing the ladder exit.

[0065] To ensure safety during evacuation and escape, a zero-speed signal is input into the control logic. When controlling the start of the first drive mechanism 41, the second drive mechanism 42 and the third drive mechanism 43, it will also detect whether the rail vehicle has a zero-speed signal. If there is no zero-speed signal, the control system will not start; if there is a zero-speed signal, the control system will start to control the action of each drive mechanism.

[0066] To ensure the safety of the evacuation and escape process, after the folding ladder 30 is unfolded, the traction system of the rail vehicle is powered off.

[0067] When folding ladder 30 is switched to folding state by unfolding state, its process is opposite with unfolding process.After folding ladder 30 is folded, the traction system of rail vehicle continues to power.

[0068] The first drive mechanism 41, the second drive mechanism 42 and the third drive mechanism 43 are driven by electric control. The crew can operate the controller button in the car to complete the deployment of the folding ladder 30, thereby realizing the rapid opening of the folding ladder 30 and solving the problem of long operation time of the existing manual installation.

[0069] Another embodiment of the present application provides a manually controlled emergency evacuation device 10. A handle is provided on the emergency evacuation device 10. During normal operation, the handle retracts into a gap within the emergency evacuation device 10, preventing it from leaking out of the device and taking up no space. In an emergency, the handle is pulled out of the hidden space to deploy the emergency evacuation device. This allows for manual deployment and retraction even when power is off.

[0070] The emergency evacuation device 10 of the embodiment of the present application is first pushed out of the vehicle body horizontally to push out the ladder exit; then it is rotated and unfolded; it can bypass the vehicle body side beam 13 without modifying the opening of the vehicle side beam 13, thereby achieving zero impact on the vehicle body strength and solving the difficulty of the folding ladder 30 being unable to realize the path of rotating and unfolding around the side beam 13. Industrial Applicability:

[0071] The emergency evacuation device provided by the present application uses a fixed frame to fix the folding ladder, uses a first drive mechanism to drive the folding ladder to extend and retract, so that the folding ladder can switch between extending out of the vehicle body and retracting into the vehicle body; uses a third drive mechanism to drive the folding ladder to switch between an unfolded state and a folded state; and uses a second drive mechanism to drive the door panel to close or open the door frame. The emergency evacuation device has an open state and a retracted state. In the open state, the second drive mechanism first drives the door panel to open, the first drive mechanism drives the folding ladder to extend, and the third drive mechanism drives the folding ladder to unfold; in the retracted state, the third drive mechanism drives the folding ladder to fold, the first drive mechanism drives the folding ladder to retract, and the second drive mechanism drives the door panel to close the door frame. The first drive mechanism, the second drive mechanism, and the third drive mechanism are used to drive the folding ladder and the door panel respectively, which facilitates the rapid deployment of the folding ladder and improves escape efficiency.

[0072] The above is a detailed introduction to the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An emergency evacuation device, characterized in that: include: A fixing frame is installed at the bottom of the vehicle body floor, and a first driving mechanism and a second driving mechanism are installed on the fixing frame; The door panel is rotatably mounted on the door frame, the door frame is mounted on the bottom of the vehicle body side beam, and the second driving mechanism drives the door panel to switch to an open state or a closed state on the door frame; A folding ladder is mounted on the fixing frame, and the first driving mechanism drives the folding ladder to switch between an extended state and a retracted state; A third driving mechanism is installed on the folding ladder, and the third driving mechanism drives the folding ladder to switch between an unfolded state and a folded state.

2. The emergency evacuation device according to claim 1, characterized in that: The fixing frame comprises a column, a clamping portion is arranged at the top end of the column, and the clamping portion is fixedly clamped into a fixing portion at the bottom of the vehicle body floor.

3. The emergency evacuation device according to claim 1, characterized in that: The top of the door frame is provided with a cross beam plate, and the cross beam plate is fixedly installed in a fixing groove at the bottom of the vehicle body side beam by means of bolts.

4. The emergency evacuation device according to claim 1, characterized in that: The fixing frame is provided with a guide mechanism, and the first and second ends of the guide mechanism are provided with a first stopper and a second stopper; the folding ladder is fixed with a sliding mechanism which slides between the first stopper and the second stopper of the guide mechanism.

5. The emergency evacuation device according to claim 1, characterized in that: The folding ladder comprises: The folding unit has a first driving end, the first driving end is connected to the first driving mechanism, and drives the folding ladder to extend and retract; the first driving end is connected to the third driving mechanism; a second driving end, the second driving end being connected to the third driving mechanism to drive the folding ladder to fold; A pedal is installed on the folding unit.

6. The emergency evacuation device according to claim 5, characterized in that: The folding unit has two sets, each set of folding units includes: At least one connecting plate fixedly connected to the pedal; At least one rotating plate is rotatably connected to the connecting plate and is used to rotate and fold the folding ladder.

7. The emergency evacuation device according to claim 6, characterized in that: Each set of folding units comprises a first connecting plate, a second connecting plate, a third connecting plate and a fourth connecting plate, wherein the first end of the third connecting plate forms the first driving end; four pedals are fixedly connected to the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate respectively; Each set of folding units comprises a first rotating plate, a second rotating plate, a third rotating plate, a fourth rotating plate, a fifth rotating plate and a sixth rotating plate; the second end of the third rotating plate forms the second driving end; The first end and the second end of the first connecting plate are respectively connected to the first end of the first rotating plate and the first end of the second rotating plate; The first end and the second end of the second connecting plate are respectively connected to the middle of the first rotating plate and the first end of the third rotating plate, and the middle of the second connecting plate is connected to the middle of the second rotating plate; The first end of the third connecting plate is separately connected to the second ends of the first rotating plate and the second rotating plate, the middle of the third connecting plate is connected to the middle of the third rotating plate, and the second end of the third connecting plate is connected to the first end of the fourth rotating plate; The first end and the middle of the fourth connecting plate are respectively connected to the second ends of the third rotating plate and the fourth rotating plate, and the second end of the fourth connecting plate is connected to the first end of the sixth rotating plate; The first end of the fifth rotating plate is connected to the 1 / 3 of the fourth rotating plate near the first end, and the second end of the fifth rotating plate is connected to the second end of the sixth rotating plate; The first driving mechanism drives the third connecting plate to extend and retract, and the third driving mechanism drives the third rotating plate to fold.

8. The emergency evacuation device according to claim 7, characterized in that: The pedal consists of a crossbar, a connecting rod, a filling block and a tread.

9. The emergency evacuation device according to claim 7, characterized in that: The connecting plate and the rotating plate form four steps; The width of each step is 20cm to 35cm, the net vertical stepping width is 16cm to 18cm, and the height difference between two adjacent steps is 15cm to 18cm; After unfolding, the inclination of each step is 50° to 70°.

10. A rail vehicle, characterized in that: include: An emergency evacuation device as claimed in any one of claims 1 to 9.

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