A flip platform emergency evacuation device

Abstract

The application discloses a turnover platform type emergency evacuation device, which comprises a vehicle body and an evacuation platform, the evacuation platform is contracted at the bottom of the vehicle body in a non-use state, the evacuation platform is arranged in parallel with the ground in use, one side of the vehicle body is provided with an adjusting mechanism for turning over the evacuation platform, a step mechanism for evacuation is arranged on the lower end surface of the evacuation platform, and the adjusting mechanism comprises a plurality of first driving motors and a plurality of U-shaped support heating first transmission assemblies, wherein the first driving motors are arranged on the vehicle body. The application has the advantages of simple structure and reasonable design, the evacuation direction perpendicular to the track is adjusted to be parallel to the track direction, the risk of limited evacuation space and collision with trackside equipment, walls or fences during evacuation is avoided, the evacuation space parallel to the track direction is fully utilized to realize free expansion of the ramp, the problems that the existing device cannot be fully expanded or cannot reach the ground after expansion are solved, and the application has strong adaptability.

Description

Technical Field

[0001] This invention relates to the field of emergency evacuation technology for rail transit, specifically to a flip-up platform type emergency evacuation device. Background Technology

[0002] With the rapid development of my country's rail transit industry, urban rail transit has gradually become an important part of the integration of urban areas and the four networks. The design of urban trains needs to fully consider passenger evacuation and rescue capabilities under emergency conditions.

[0003] According to standard requirements, urban rail transit vehicles generally adopt a streamlined driver's cab design, rendering front evacuation doors impractical and limiting the evacuation capacity of this evacuation scheme. High-speed rail vehicles typically have evacuation ladders in their equipment storage compartments; in emergencies, onboard personnel can place these ladders at the doors for passenger evacuation. Subway vehicles without onboard personnel generally have an emergency evacuation system installed inside the vehicle, which can be operated by the driver or passengers to facilitate emergency evacuation. For high-speed rail vehicles without mechanics, a civil engineering evacuation platform is typically installed to facilitate passenger evacuation.

[0004] Existing technologies have high requirements for lateral space and cannot adapt to application scenarios with multiple complex working conditions, such as when a train tilts on a curve, the floor surface and evacuation surface must be either raised or lowered, and situations involving partial or no evacuation cable trenches. In these situations, problems arise where either the evacuation steps are too steep or the standing surface of the evacuation steps is insufficient. Summary of the Invention

[0005] The purpose of this invention is to provide a flip-up platform type emergency evacuation device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a flip-up platform type emergency evacuation device, comprising a vehicle body and an evacuation platform, wherein the evacuation platform is retracted at the bottom of the vehicle body when not in use, and is arranged parallel to the ground when in use. An adjustment mechanism for flipping the evacuation platform is provided on one side of the vehicle body, and a step mechanism for evacuation is provided on the lower end surface of the evacuation platform. The adjustment mechanism includes: Several first drive motors are mounted on the vehicle body; Several U-shaped brackets, one side of which is movably mounted on the vehicle body, and the other side of which is connected to the evacuation platform; The first transmission component is mounted on the first drive motor and the U-shaped bracket for driving the U-shaped bracket to rotate.

[0007] As a further improvement of the present invention, the step mechanism includes: Several second drive motors are provided, and the second drive motors are disposed on the lower end surface of the evacuation platform; A retractable staircase, one end of which is movably mounted on the lower end face of an evacuation platform; The second transmission component is located at the lower end of the evacuation platform and is used by the second drive motor to drive the telescopic staircase.

[0008] As a further improvement of the present invention, the telescopic staircase includes several transmission rods, several stair treads and several connecting rods. The upper end of the transmission rod is rotatably connected to the evacuation platform, the stair treads are rotatably installed at the lower end of the transmission rod, and the connecting rods are rotatably connected to the stair treads to form a retractable staircase.

[0009] As a further improvement of the present invention, the first transmission component includes: A first bevel gear is disposed at the output end of a first drive motor; The second bevel gear is disposed on one side of the U-shaped bracket, and the first bevel gear and the second bevel gear are meshed together.

[0010] As a further improvement of the present invention, the second transmission component includes: The third bevel gear is disposed at the output end of the second drive motor; The fourth bevel gear is disposed on one side of the transmission rod, and the third bevel gear and the fourth bevel gear are meshed together.

[0011] As a further improvement of the present invention, the lower end of the telescopic staircase is provided with a plurality of support columns, and the lower end of the support columns is provided with limit switches.

[0012] As a further improvement of the present invention, the number of the U-shaped brackets is at least three, and the U-shaped brackets are mounted on the vehicle body by means of a mounting bracket.

[0013] As a further improvement of the present invention, the evacuation platform is flipped into a horizontal state, and its upper surface is lower than the vehicle body evacuation opening.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, a step mechanism for evacuation is provided on the lower end surface of the evacuation platform. The adjustment mechanism includes several first drive motors, several U-shaped brackets and a first transmission component. The existing evacuation direction perpendicular to the track is adjusted to evacuation parallel to the track, thereby avoiding the risk of limited evacuation space and collision with trackside equipment, walls or fences during evacuation. 2. In this invention, a step mechanism is provided, which includes several second drive motors, a telescopic staircase, and a second transmission component. The telescopic staircase includes several transmission rods, several stair slabs, and several connecting rods. It makes full use of the evacuation space parallel to the track direction to achieve the free unfolding of the ramp, avoiding the problems of existing solutions that cannot fully unfold or cannot reach the ground after unfolding. It has strong adaptability. Attached Figure Description

[0015] Figure 1 This is an overall perspective view of the present invention; Figure 2 This is a schematic diagram showing the connection between the first bevel gear and the second bevel gear of the present invention; Figure 3 This is a schematic diagram showing the connection between the third and fourth bevel gears of the present invention.

[0016] In the diagram: 1. Vehicle body; 2. Evacuation platform; 3. Adjustment mechanism; 31. First drive motor; 32. U-shaped bracket; 4. Step mechanism; 41. Second drive motor; 42. Telescopic staircase; 421. Transmission rod; 422. Stair tread; 423. Connecting rod; 5. First bevel gear; 6. Second bevel gear; 7. Third bevel gear; 8. Fourth bevel gear; 9. Support column; 10. Limit switch. Detailed Implementation

[0017] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0018] It should be noted that when an element is referred to as "fixed," "mounted," "connected," or "set" with another element, it can be directly on or indirectly on the other element. It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0019] As a further improvement of the present invention, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Example

[0020] Please see Figure 1-3 This invention provides a technical solution: a flip-up platform type emergency evacuation device, including a vehicle body 1 and an evacuation platform 2. The evacuation platform 2 is retracted into the bottom of the vehicle body 1 when not in use. When in use, the evacuation platform 2 is designed to be parallel to the ground. An adjustment mechanism 3 for flipping the evacuation platform 2 is installed on one side of the vehicle body 1. A step mechanism 4 for evacuation is installed on the lower end surface of the evacuation platform 2. The adjustment mechanism 3 includes several first drive motors 31, several U-shaped brackets 32, and a first transmission assembly. The first drive motors 31 are fixedly installed on the vehicle body 1, and one side of the U-shaped brackets 32 is rotatably mounted on... On the vehicle body 1, the other side of the U-shaped bracket 32 ​​is connected to the evacuation platform 2. The first transmission component is installed on the first drive motor 31 and the U-shaped bracket 32 ​​to drive the U-shaped bracket 32 ​​to rotate. Under normal circumstances, the first drive motor 31 rotates the U-shaped bracket 32 ​​through the first transmission component, so that the evacuation platform 2 retracts to the lower part of the vehicle body 1. When an emergency evacuation is required, the first drive motor 31 only needs to rotate, and the first transmission component drives the U-shaped bracket 32 ​​to rotate. After the evacuation platform 2 is rotated to the specified angle, the first drive motor 31 stops working and is in a locked state.

[0021] The step mechanism 4 includes several second drive motors 41, a telescopic staircase 42, and a second transmission assembly. The second drive motors 41 are fixedly installed on the lower end face of the evacuation platform 2. One end of the telescopic staircase 42 is installed on the lower end face of the evacuation platform 2. The second transmission assembly is installed on the lower end of the evacuation platform 2 for the second drive motors 41 to drive the telescopic staircase 42 to move. When the evacuation platform 2 rotates to a specified angle and locks, the second drive motors 41 work and drive the telescopic staircase 42 to extend through the second transmission assembly until the lower end of the telescopic staircase 42 contacts the ground.

[0022] The telescopic staircase 42 includes several transmission rods 421, several stair treads 422, and several connecting rods 423. The upper end of the transmission rod 421 is rotatably connected to the evacuation platform 2. The stair treads 422 are rotatably installed on the lower end of the transmission rod 421. The connecting rods 423 are rotatably connected to the stair treads 422 to form a retractable staircase. When the telescopic staircase 42 extends or retracts, the upper end of the transmission rod 421 rotates around the connection point with the evacuation platform 2. Since the evacuation platform 2, transmission rods 421, stair treads 422, and connecting rods 423 form a parallelogram structure, as do the stair treads 422 and connecting rods 423, the telescopic staircase 42 extends. And since the evacuation platform 2 is always horizontal, the stair treads 422 will remain horizontal regardless of the extension distance of the telescopic staircase 42.

[0023] The first transmission assembly includes a first bevel gear 5 and a second bevel gear 6. The first bevel gear 5 is fixedly installed at the output end of the first drive motor 31, and the second bevel gear 6 is fixedly installed on one side of the U-shaped bracket 32. The first bevel gear 5 and the second bevel gear 6 are meshed together. When the first drive motor 31 is working, it drives the first bevel gear 5 to rotate, and the second bevel gear 6 follows the rotation of the first bevel gear 5, so that the U-shaped bracket 32 ​​drives the evacuation platform 2 to rotate.

[0024] The second transmission assembly includes a third bevel gear 7 and a fourth bevel gear 8. The third bevel gear 7 is fixedly installed at the output end of the second drive motor 41, and the fourth bevel gear 8 is fixedly installed on one side of the transmission rod 421. The third bevel gear 7 and the fourth bevel gear 8 are meshed together. The second drive motor 41 drives the fourth bevel gear 8 to rotate through the third bevel gear 7, thereby enabling the transmission rod 421 to rotate.

[0025] The lower end of the telescopic staircase 42 is provided with several support columns 9, and the lower end of the support columns 9 is provided with limit switches 10. When at least two limit switches 10 are triggered, the second drive motor 41 stops rotating and locks itself to ensure the stability of the telescopic staircase 42 in contact with the ground.

[0026] There are at least three U-shaped brackets 32, which are mounted on the vehicle body 1 via mounting brackets to increase the stability of the evacuation platform 2.

[0027] The evacuation platform 2 is flipped to a horizontal state, with its upper surface lower than the evacuation opening of the vehicle body 1, making it easier for people to move from inside the vehicle body 1 to the evacuation platform 2.

[0028] Working principle: Under normal circumstances, the first drive motor 31 operates, driving the first bevel gear 5 to rotate. The second bevel gear 6 follows the rotation of the first bevel gear 5, causing the U-shaped bracket 32 ​​to rotate, thus retracting the evacuation platform 2 to the lower part of the vehicle body 1. In case of emergency evacuation, the first drive motor 31 rotates, driving the first bevel gear 5 to rotate. The second bevel gear 6 follows the rotation of the first bevel gear 5, causing the U-shaped bracket 32 ​​to rotate, thus rotating the evacuation platform 2. After the evacuation platform 2 is rotated to a specified angle, the first drive motor 31 stops operating and enters a locked state. Once the evacuation platform 2 has rotated to the specified angle and locked, the second drive motor 41 operates, driving the fourth bevel gear 8 to rotate via the third bevel gear 7, thereby allowing the transmission rod 421 to rotate. When the ladder 42 extends or retracts, the upper end of the transmission rod 421 rotates around the connection point with the evacuation platform 2. Since the evacuation platform 2, transmission rod 421, stair tread 422, connecting rod 423, and stair tread 422 and connecting rod 423 form a parallelogram structure, the telescopic ladder 42 extends. And since the evacuation platform 2 is always horizontal, the stair tread 422 will remain horizontal regardless of the extension distance of the telescopic ladder 42. This device adjusts the existing evacuation direction perpendicular to the track to evacuation parallel to the track, avoiding the risk of restricted evacuation space and collision with trackside equipment, walls, or fences during evacuation. It makes full use of the evacuation space parallel to the track to achieve free deployment of the ramp, avoiding the problems of existing devices not being able to fully deploy or not being able to reach the ground after deployment. It is highly adaptable.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tilting platform type emergency evacuation device, comprising a vehicle body (1) and an evacuation platform (2), characterized in that: The evacuation platform (2) is retracted to the bottom of the vehicle body (1) when not in use. When in use, the evacuation platform (2) is set parallel to the ground. An adjustment mechanism (3) for flipping the evacuation platform (2) is provided on one side of the vehicle body (1). A step mechanism (4) for evacuation is provided on the lower end surface of the evacuation platform (2). The adjustment mechanism (3) includes: A plurality of first drive motors (31) are mounted on the vehicle body (1); Several U-shaped brackets (32) are provided, one side of which is movably mounted on the vehicle body (1), and the other side of which is connected to the evacuation platform (2). The first transmission assembly is disposed on the first drive motor (31) and the U-shaped bracket (32) for driving the U-shaped bracket (32) to rotate; The step mechanism (4) includes a telescopic staircase (42), one end of which is movably disposed on the lower end face of the evacuation platform (2), and the evacuation direction is parallel to the track direction.

2. The flipping platform type emergency evacuation device according to claim 1, characterized in that: The step mechanism (4) also includes: Several second drive motors (41) are provided on the lower end face of the evacuation platform (2); The second transmission component is located at the lower end of the evacuation platform (2) and is used by the second drive motor (41) to drive the telescopic staircase (42) to move.

3. The flipping platform type emergency evacuation device according to claim 1, characterized in that: The telescopic staircase (42) includes several transmission rods (421), several stair slabs (422), and several connecting rods (423). The upper end of the transmission rod (421) is rotatably connected to the evacuation platform (2). The stair slabs (422) are rotatably installed on the lower end of the transmission rods (421). The connecting rods (423) are rotatably connected to the stair slabs (422) to form a retractable staircase.

4. The flipping platform type emergency evacuation device according to claim 1, characterized in that: The first transmission assembly includes: The first bevel gear (5) is disposed at the output end of the first drive motor (31); The second bevel gear (6) is disposed on one side of the U-shaped bracket (32), and the first bevel gear (5) and the second bevel gear (6) are meshed together.

5. The flipping platform type emergency evacuation device according to claim 2, characterized in that: The second transmission assembly includes: The third bevel gear (7) is disposed at the output end of the second drive motor (41); The fourth bevel gear (8) is disposed on one side of the transmission rod (421), and the third bevel gear (7) and the fourth bevel gear (8) are meshed together.

6. The flipping platform type emergency evacuation device according to claim 3, characterized in that: The lower end of the telescopic staircase (42) is provided with several support columns (9), and the lower end of the support columns (9) is provided with limit switches (10).

7. The flip-up platform type emergency evacuation device according to claim 1, characterized in that: The number of the U-shaped brackets (32) is at least three, and the U-shaped brackets (32) are mounted on the vehicle body (1) by means of a mounting bracket.

8. The flipping platform type emergency evacuation device according to claim 1, characterized in that: The evacuation platform (2) is flipped into a horizontal state, and its upper surface is lower than the evacuation opening of the vehicle body (1).

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