Folding evacuation ladder and train

Abstract

The invention provides a folding evacuation ladder and a train. The folding evacuation ladder comprises a lifting platform mechanism and an evacuation slope ramp; the lifting platform mechanism comprises a rack, a hinge support, a hydraulic control rod, a lifting hydraulic cylinder, a shear fork arm, an upper flat plate, a telescopic handrail and idler wheels. The evacuation slope ramp comprises a retractable evacuation pedal; a hinge support and a hydraulic control rod are mounted on the rack; one end of the lifting hydraulic cylinder is fixed on the hinge support, and the other end is fixed on the scissor arm; one end of the shear fork arm is fixed on the hinge support and the other end is fixed on the upper flat plate; the telescopic handrail is mounted on the upper flat plate; one end of the retractable evacuation pedal is connected with one end of the upper flat plate; a hydraulic control rod is pressed to control a hydraulic cylinder bracket to extend out of a lifting hydraulic cylinder to drive a shear fork arm and a roller to move so as to push an upper flat plate to rise; the retractable handrail is pulled open, the retractable evacuation pedal is turned over and unfolded, the tail end of the retractable evacuation pedal is in lap joint with the ground, and a slope ramp is formed. The timeliness of emergency evacuation is improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] This application relates to the technical field of train emergency evacuation, and particularly to a folding evacuation ladder and a train. Background Art

[0002] When an emergency occurs in a train on special sections such as tunnels or bridges and the train cannot run to a rescue station, passengers need to be directly evacuated to the ground through the car doors. However, there is a height difference between the train floor surface and the ground, and this height difference becomes a key factor restricting the evacuation efficiency and safety.

[0003] Currently, in related technologies, a stepped evacuation ladder is assembled by professionals, and passengers are evacuated to the ground through the step pedals of the stepped evacuation ladder.

[0004] However, on the one hand, professional personnel are required for on-site assembly, which takes a long time and cannot meet the timeliness requirements of emergency evacuation; on the other hand, the step pedals are prone to shaking during the evacuation process, posing a safety hazard. Summary of the Invention

[0005] Embodiments of this application provide a folding evacuation ladder and a train, aiming to improve the timeliness of emergency evacuation and reduce safety hazards.

[0006] In a first aspect, an embodiment of this application provides a folding evacuation ladder, including:

[0007] A lifting platform mechanism (10) and an evacuation ramp (20); wherein, the lifting platform mechanism (10) includes a frame (11), a hinge support (12), a hydraulic control rod (13), a lifting hydraulic cylinder (14), a scissor arm (15), an upper flat plate (16), a telescopic handrail (17) and rollers (18); the evacuation ramp (20) includes a retractable evacuation pedal (21);

[0008] The hinge support (12) and the hydraulic control rod (13) are installed on the frame (11);

[0009] One end of the lifting hydraulic cylinder (14) is fixed to the hinge support (12), and the other end is fixed to the scissor arm (15);

[0010] One end of the scissor arm (15) is fixed to the hinge support (12), and the other end is fixed to the lower contact surface of the upper flat plate (16);

[0011] The telescopic handrail (17) is installed on the upper flat plate (16);

[0012] One end of the retractable evacuation pedal (21) is connected to one end of the upper flat plate (16);

[0013] Press the hydraulic control lever (13) to control the hydraulic cylinder support (19) to extend from the lifting hydraulic cylinder (14), drive the scissor arm (15) and the roller (18) to move, and push the upper flat plate (16) to rise; pull up the telescopic handrail (17) upwards, flip the retractable evacuation pedal (21), unfold the retractable evacuation pedal (21), and lap the end of the retractable evacuation pedal (21) on the ground to form a ramp.

[0014] In a possible implementation manner, it further includes: a locking hinge (30); one end of the retractable evacuation pedal (21) is connected to one end of the upper flat plate (16) through the locking hinge (30).

[0015] In a possible implementation manner, the lifting platform mechanism (10) further includes: a self-locking wheel (110); the self-locking wheel (110) is installed on the lower contact surface of the frame (11); the self-locking wheel (110) is used for locking when using the folding evacuation ladder.

[0016] In a possible implementation manner, the lifting platform mechanism (10) further includes: a pull rod (111); the pull rod (111) is fixed on the frame (11); the pull rod (111) is used to move the folding evacuation ladder.

[0017] In a possible implementation manner, the lifting platform mechanism (10) further includes: a pin shaft (112); one end of the lifting hydraulic cylinder (14) is fixed to the hinge support (12) through the pin shaft (112); one end of the scissor arm (15) is fixed to the hinge support (12) through the pin shaft (112).

[0018] In a possible implementation manner, the evacuation ramp (20) further includes: a slide rail (22); the retractable evacuation pedal (21) is connected through the slide rail (22).

[0019] In a possible implementation manner, the evacuation ramp (20) further includes: an anti-slip stable foot (23); the anti-slip stable foot (23) is arranged at the end of the retractable evacuation pedal (21); the end of the retractable evacuation pedal (21) is lapped on the ground through the anti-slip stable foot (23).

[0020] In a possible implementation manner, the evacuation ramp (20) further includes: an anti-slip device (24); the anti-slip device (24) is arranged on the retractable evacuation pedal (21); the anti-slip device (24) is adhered to the retractable evacuation pedal (21).

[0021] In a possible implementation manner, the anti-slip device (24) includes at least one of the following: a rubber pad, an anti-slip sticker, a silica gel pad, and an anti-slip foot pad.

[0022] In a second aspect, an embodiment of the present application provides a train, including:

[0023] A folding evacuation ladder is provided on the train.

[0024] The folding evacuation ladder and the train provided by the embodiment of the present application. Press the hydraulic control rod to control the hydraulic cylinder bracket to extend from the lifting hydraulic cylinder, drive the scissor arm and the roller to move, and push the upper flat plate to rise to the designated height; pull up the telescopic handrail, flip the retractable evacuation pedal, unfold the retractable evacuation pedal, and lap the end of the retractable evacuation pedal on the ground to form a ramp. The operation is simple and there is no complicated assembly process, which can improve the timeliness of emergency evacuation. The overall structure of the evacuation ramp is relatively continuous and stable, without obvious height differences of stepped pedals, not easy to shake, and reduces the risk of passengers falling due to stepping empty or unstable footsteps. In addition, the structure of the ramp allows multiple people to walk on it at the same time, increasing the number of people passing through per unit time, and can evacuate passengers to a safe area more quickly, further improving the timeliness of evacuation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings herein are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0026] Figure 1 It is a schematic structural diagram of the unfolded state of the folding evacuation ladder provided by the embodiment of the present application;

[0027] Figure 2 It is a schematic structural diagram of the folded state of the folding evacuation ladder provided by the embodiment of the present application;

[0028] Figure 3 It is a schematic structural diagram of the telescopic handrail after being unfolded provided by the embodiment of the present application;

[0029] Figure 4 It is a schematic structural design diagram of the telescopic handrail after being unfolded provided by the embodiment of the present application;

[0030] Figure 5 It is a schematic structural diagram of the telescopic handrail after being retracted provided by the embodiment of the present application;

[0031] Figure 6 It is a schematic structural design diagram of the telescopic handrail after being retracted provided by the embodiment of the present application;

[0032] Figure 7 It is a schematic structural design diagram of the folded state of the folding evacuation ladder provided by the embodiment of the present application;

[0033] Figure 8 It is a schematic structural design diagram of the unfolded state of the folding evacuation ladder provided by the embodiment of the present application;

[0034] Figure 9Schematic structural design diagram of the lifting platform mechanism in the deployed state provided by the embodiment of the present application;

[0035] Figure 10 Schematic structural design diagram of the upper flat plate provided by the embodiment of the present application;

[0036] Figure 11 Structural design diagram of the deployable evacuation pedal in the deployed state provided by the embodiment of the present application.

[0037] Reference numerals:

[0038] 10 - Lifting platform mechanism;

[0039] 11 - Including a frame;

[0040] 12 - Hinge support;

[0041] 13 - Hydraulic control rod;

[0042] 14 - Lifting hydraulic cylinder;

[0043] 15 - Scissor arm;

[0044] 16 - Upper flat plate;

[0045] 17 - Telescopic handrail;

[0046] 18 - Roller;

[0047] 19 - Hydraulic cylinder bracket;

[0048] 110 - Self-locking wheel;

[0049] 111 - Tie rod;

[0050] 112 - Pin shaft;

[0051] 20 - Evacuation ramp;

[0052] 21 - Deployable evacuation pedal;

[0053] 22 - Slide rail;

[0054] 23 - Anti-slip stable support foot;

[0055] 24 - Anti-slip device;

[0056] 30 - Locking hinge.

[0057] Through the above-mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0058] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0059] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" or "laid on" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0060] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0061] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" or "several" means two or more, unless otherwise specifically defined.

[0062] When an emergency occurs on a train in a special section such as a tunnel or a bridge and the train cannot run to a rescue station, passengers need to be directly evacuated to the ground through the train doors. However, there is a height difference between the train floor and the ground, and this height difference has become a key factor restricting the evacuation efficiency and safety. Currently, in related technologies, professional personnel assemble a stepped evacuation ladder, and passengers are evacuated to the ground through the step pedals of the stepped evacuation ladder. However, on the one hand, professional personnel are required to assemble it on-site, and the installation takes a long time, which cannot meet the timeliness requirements of emergency evacuation; on the other hand, the step pedals are prone to shaking during the evacuation process, posing a safety hazard.

[0063] To solve the above technical problems, the present application proposes the following technical concepts: Considering that the related art requires professional personnel to assemble the ladder evacuation ladder, which cannot meet the timeliness of emergency evacuation. The inventor thought of a folding evacuation ladder, which combines hydraulic lifting, folding design and ramp structure. Press the hydraulic control rod to control the hydraulic cylinder bracket to extend from the lifting hydraulic cylinder, drive the scissor arm and the roller to move, and push the upper flat plate to rise to the specified height; pull up the telescopic handrail, flip the retractable evacuation pedal, unfold the retractable evacuation pedal, and lap the end of the retractable evacuation pedal on the ground to form a ramp. The operation is simple and there is no complicated assembly process, which can improve the timeliness of emergency evacuation. Considering the ladder pedal, which is prone to shaking during evacuation and poses a safety hazard, the inventor thought of a ramp-type pedal, flipped the retractable evacuation pedal, unfolded the retractable evacuation pedal, and lapped the end of the retractable evacuation pedal on the ground to form a ramp. The overall structure of the evacuation ramp is relatively continuous and stable, without the obvious height difference of the stepped pedal, not easy to shake, and reduces the risk of passengers falling due to stepping empty or unstable footsteps. In addition, the structure of the ramp allows multiple people to walk on it at the same time, increasing the number of people passing through per unit time, and can evacuate passengers to a safe area more quickly, further improving the timeliness of evacuation.

[0064] The following uses specific embodiments to describe in detail the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems. These specific embodiments below can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below with reference to the drawings.

[0065] Reference Figure 1 and Figure 2 ; Figure 1 is a schematic structural diagram of the unfolded state of the folding evacuation ladder provided by the embodiment of the present application; Figure 2 is a schematic structural diagram of the folded state of the folding evacuation ladder provided by the embodiment of the present application. In this embodiment, the folding evacuation ladder includes: a lifting platform mechanism (10) and an evacuation ramp (20); wherein, the lifting platform mechanism (10) includes a frame (11), a hinge support (12), a hydraulic control rod (13), a lifting hydraulic cylinder (14), a scissor arm (15), an upper flat plate (16), a telescopic handrail (17) and a roller (18); the evacuation ramp (20) includes a retractable evacuation pedal (21).

[0066] The frame (11) is installed with a hinge support (12) and a hydraulic control rod (13).

[0067] One end of the lifting hydraulic cylinder (14) is fixed to the hinge support (12), and the other end is fixed to the scissor arm (15).

[0068] One end of the scissor arm (15) is fixed to the hinge support (12), and the other end is fixed to the lower contact surface of the upper flat plate (16).

[0069] In this embodiment, the lifting platform mechanism (10) further includes: a pin shaft (112); one end of the lifting hydraulic cylinder (14) is fixed to the hinge support (12) through the pin shaft (112); one end of the scissor arm (15) is fixed to the hinge support (12) through the pin shaft (112).

[0070] The telescopic handrail (17) is installed on the upper flat plate (16).

[0071] In this embodiment, the telescopic handrail (17) is installed on the side of the upper flat plate (16) and is usually in a folded and stored state. When in use, the telescopic handrail (17) can be pulled up.

[0072] Reference Figure 3 and Figure 4 , Figure 3 is the structural schematic diagram of the telescopic handrail after being unfolded provided by the embodiment of the present application; Figure 4 is the structural design schematic diagram of the telescopic handrail after being unfolded provided by the embodiment of the present application. Optionally, the handrail length of the telescopic handrail (17) can be 0.7 meters, and the height can be 0.7 meters. Optionally, the telescopic handrail (17) can be a three-stage telescopic structure with dimensions of 0.2 meters, 0.25 meters, and 0.25 meters respectively.

[0073] Reference Figure 5 and Figure 6 , Figure 5 is the structural schematic diagram of the telescopic handrail after being retracted provided by the embodiment of the present application; Figure 6 is the structural design schematic diagram of the telescopic handrail after being retracted provided by the embodiment of the present application. Optionally, the height of the telescopic handrail (17) after being retracted can be 0.25 meters.

[0074] One end of the retractable evacuation pedal (21) is connected to one end of the upper flat plate (16).

[0075] In this embodiment, the evacuation ramp (20) can be folded and stored. The evacuation ramp (20) is placed on the upper flat plate (16) after being folded and forms a ramp after being unfolded.

[0076] In this embodiment, by lifting the end of the retractable evacuation pedal (21), the retractable evacuation pedal (21) is flipped from the upper flat plate (16), and the retractable evacuation pedal (21) is unfolded, and the end of the retractable evacuation pedal (21) is lapped on the ground to form a ramp.

[0077] Reference Figure 7 , Figure 7This is a schematic structural design diagram of the folding evacuation ladder in the folded state provided by the embodiment of the present application. Optionally, when the lifting platform mechanism (10) is in the folded state, the height of the upper flat plate (16) from the ground is 0.3 meters. When the evacuation ramp is in the folded state, the height of the retractable evacuation pedal (21) on the upper flat plate is 0.1 meter.

[0078] Reference Figure 8 , Figure 8 This is a schematic structural design diagram of the folding evacuation ladder in the unfolded state provided by the embodiment of the present application. Optionally, the length of the upper flat plate (16) can be 0.7 meters, and the unfolded length of the retractable evacuation pedal (21) can be 2.2 meters.

[0079] Reference Figure 9 , Figure 9 This is a schematic structural design diagram of the lifting platform mechanism in the unfolded state provided by the embodiment of the present application. Optionally, the maximum height that the upper flat plate (16) can rise is 1.26 meters.

[0080] Reference Figure 10 , Figure 10 This is a schematic structural design diagram of the upper flat plate provided by the embodiment of the present application. Optionally, the length of the upper flat plate can be 0.7 meters, the width can be 0.6 meters, and the thickness can be 0.02 meters.

[0081] Reference Figure 11 , Figure 11 This is a structural design diagram of the retractable evacuation pedal in the unfolded state provided by the embodiment of the present application. Optionally, the length of the retractable evacuation pedal (21) is 2.2 meters. The retractable evacuation pedal (21) includes a plurality of pedals. The length of each pedal can be 0.7 meters, the width can be 0.6 meters, the thickness can be 0.02 meters, and the overlapping length between each pedal can be 0.2 meters.

[0082] Press the hydraulic control rod (13) to control the hydraulic cylinder support (19) to extend from the lifting hydraulic cylinder (14), drive the scissor arms (15) and the rollers (18) to move, and push the upper flat plate (16) to rise; pull up the retractable handrail (17) upward, flip the retractable evacuation pedal (21), unfold the retractable evacuation pedal (21), and lap the end of the retractable evacuation pedal (21) on the ground to form a ramp.

[0083] In this embodiment, the height that the upper flat plate (16) rises can be controlled, and the height that the upper flat plate (16) rises can be flexibly controlled according to the actual situation.

[0084] In this embodiment, the scissor arm (15) has four endpoints. One endpoint is fixed to the hinge support (12), and one end is fixed to the lower contact surface of the upper flat plate (16). The remaining two endpoints are equipped with rollers (18), which are in contact with the frame (11) and the lower contact surface of the upper flat plate (16) respectively through the rollers. It can be moved through the rollers.

[0085] In this embodiment, the lifting platform mechanism (10) further includes: a pull rod (111).

[0086] The pull rod (111) is fixed to the frame (11); the pull rod (111) is used to move the folding evacuation ladder.

[0087] In this embodiment, under normal circumstances, the folding evacuation ladder is in a folded state and placed in the storage cabinet. When using the folding evacuation ladder, the train crew opens the special storage cabinet, takes out the placed folding evacuation ladder, moves it through the pull rod (111), and places it on the ground at the door.

[0088] In summary, by pressing the hydraulic control rod, the control hydraulic cylinder bracket is extended from the lifting hydraulic cylinder, driving the scissor arm and the rollers to move, and pushing the upper flat plate to rise to the specified height; pulling up the telescopic handrail, flipping the retractable evacuation pedal, unfolding the retractable evacuation pedal, and lapping the end of the retractable evacuation pedal on the ground to form a ramp. The operation is simple and there is no complex assembly process, which can improve the timeliness of emergency evacuation. The overall structure of the evacuation ramp is relatively continuous and stable, without obvious height differences of stepped pedals, not easy to shake, reducing the risk of passengers falling due to stepping empty or unstable footsteps. In addition, the structure of the ramp allows multiple people to walk on it at the same time, increasing the number of people passing through per unit time, and can evacuate passengers to a safe area more quickly, further improving the timeliness of evacuation.

[0089] On the basis of the above embodiment, in this embodiment, the folding evacuation ladder further includes: a locking hinge (30);

[0090] One end of the retractable evacuation pedal (21) is connected to one end of the upper flat plate (16) through the locking hinge (30).

[0091] In this embodiment, referring to Figure 2 , when the folding evacuation ladder is in the folded state, the locking hinge (30) is in the closed state; referring to Figure 1 , when the folding evacuation ladder is in the use state, flipping the retractable evacuation pedal (21), the locking hinge (30) follows the flip at the same time, and the locking hinge (30) is in the unfolded state. When the folding evacuation ladder is in the use state, the locking hinge (30) is locked to ensure the stability of the retractable evacuation pedal (21).

[0092] In summary, when the flip-up retractable evacuation pedal is flipped up and the retractable evacuation pedal is deployed, when the folding evacuation ladder is in use, it is locked and fixed through the locking hinge to ensure the stability of the retractable evacuation pedal, avoid the shaking of the retractable evacuation pedal during the evacuation process, and further reduce the safety hazards during the evacuation process.

[0093] Based on the above embodiments, in this embodiment, the lifting platform mechanism (10) further includes: a self-locking wheel (110);

[0094] The self-locking wheel (110) is installed on the lower contact surface of the frame (11); the self-locking wheel (110) is used for locking when using the folding evacuation ladder.

[0095] In this embodiment, the self-locking wheel (110) has a self-locking structure and is locked when using the folding evacuation ladder.

[0096] In summary, when using the folding evacuation ladder, it is locked through the self-locking wheel to ensure the shaking of the lifting platform mechanism, and further reduce the safety hazards during the evacuation process.

[0097] Based on the above embodiments, in this embodiment, the evacuation ramp (20) further includes: a slide rail (22);

[0098] The retractable evacuation pedal (21) is connected through the slide rail (22).

[0099] In this embodiment, when the retractable evacuation pedal is deployed, the retractable evacuation pedal can be pulled out block by block by pulling the slide rail (22).

[0100] In summary, the retractable evacuation pedal is connected through the slide rail, which is convenient for storage and can be quickly deployed in an emergency.

[0101] Based on the above embodiments, in this embodiment, the evacuation ramp (20) further includes: anti-slip stable feet (23) and an anti-slip device (24).

[0102] The anti-slip stable feet (23) are arranged at the end of the retractable evacuation pedal (21); the end of the retractable evacuation pedal (21) is lapped on the ground through the anti-slip stable feet (23).

[0103] In this embodiment, the anti-slip stable feet (23) prevent the evacuation ramp from sliding.

[0104] An anti-slip device (24) is arranged on the retractable evacuation pedal (21); the anti-slip device (24) is adhered to the retractable evacuation pedal (21).

[0105] In this embodiment, when a passenger walks on the retractable evacuation pedal (21), the anti-slip device is used to increase the friction and prevent the passenger from slipping.

[0106] In this embodiment, the anti-slip device (24) includes at least one of the following: a rubber pad, an anti-slip sticker, a silica gel pad, and an anti-slip foot pad.

[0107] In summary, it can be seen that the evacuation ramp is prevented from sliding by the anti-slip stabilizing feet, and the friction is increased by the anti-slip device to prevent passengers from slipping. Further, the potential safety hazards during the evacuation are reduced.

[0108] The embodiment of the present application further provides a train, in which a folding evacuation ladder is provided.

[0109] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include common general knowledge or conventional technical means in the technical field not disclosed in the present invention. It is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A folding evacuation ladder, characterized in that, Comprising: A lifting platform mechanism (10) and an evacuation ramp (20); wherein, the lifting platform mechanism (10) includes a frame (11), a hinge support (12), a hydraulic control rod (13), a lifting hydraulic cylinder (14), a scissor arm (15), an upper flat plate (16), a telescopic handrail (17) and rollers (18); the evacuation ramp (20) includes a retractable evacuation pedal (21); The hinge support (12) and the hydraulic control rod (13) are installed on the frame (11); One end of the lifting hydraulic cylinder (14) is fixed to the hinge support (12), and the other end is fixed to the scissor arm (15); One end of the scissor arm (15) is fixed to the hinge support (12), and the other end is fixed to the lower contact surface of the upper flat plate (16); The telescopic handrail (17) is installed on the upper flat plate (16); One end of the retractable evacuation pedal (21) is connected to one end of the upper flat plate (16); Press the hydraulic control rod (13), control the hydraulic cylinder support (19) to extend from the lifting hydraulic cylinder (14), drive the scissor arm (15) and the rollers (18) to move, and push the upper flat plate (16) to rise; pull up the telescopic handrail (17) upward, flip the retractable evacuation pedal (21), unfold the retractable evacuation pedal (21), and lap the end of the retractable evacuation pedal (21) on the ground to form a ramp.

2. The folding evacuation ladder according to claim 1, wherein, Further comprising: A locking hinge (30); One end of the retractable evacuation pedal (21) is connected to one end of the upper flat plate (16) through the locking hinge (30).

3. The folding evacuation ladder according to claim 1, wherein, The lifting platform mechanism (10) further includes: self-locking wheels (110); The self-locking wheels (110) are installed on the lower contact surface of the frame (11); the self-locking wheels (110) are used for locking when using the folding evacuation ladder.

4. The folding evacuation ladder according to claim 3, characterized in that, The lifting platform mechanism (10) further includes: a pull rod (111); The pull rod (111) is fixed to the frame (11); the pull rod (111) is used for moving the folding evacuation ladder.

5. The folding evacuation ladder according to claim 1, characterized in that, The lifting platform mechanism (10) further includes: a pin shaft (112); One end of the lifting hydraulic cylinder (14) is fixed to the hinge support (12) through the pin shaft (112); One end of the scissor arm (15) is fixed to the hinge support (12) through the pin shaft (112).

6. The folding evacuation ladder according to claim 1, characterized in that, The evacuation ramp (20) further includes: a slide rail (22); The retractable evacuation pedal (21) is connected through the slide rail (22).

7. The folding evacuation ladder according to claim 1, characterized in that, The evacuation ramp (20) further includes: anti-slip stabilizing feet (23); The anti-slip stabilizing feet (23) are arranged at the end of the retractable evacuation pedal (21); the end of the retractable evacuation pedal (21) is lapped on the ground through the anti-slip stabilizing feet (23).

8. The folding evacuation ladder according to claim 1, wherein, The evacuation ramp (20) further includes: an anti-slip device (24); The retractable evacuation pedal (21) is provided with an anti-slip device (24); the anti-slip device (24) is adhered to the retractable evacuation pedal (21).

9. The folding evacuation ladder according to claim 8, wherein, The anti-slip device (24) includes at least one of the following: a rubber pad, an anti-slip sticker, a silica gel pad, and an anti-slip foot pad.

10. A train, characterized in that, The train is provided with a folding evacuation ladder as described in any one of claims 1-9.

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