A rapidly deployable inflatable evacuation platform system

Abstract

A kind of inflatable evacuation platform system of quick deployment, including one or more mutual series evacuation platform, the evacuation platform includes main frame, inflatable support air bag, drive cylinder and inflation device;Slide rail is arranged between the main frame and the ground of tunnel, the inflatable support air bag is arranged on the main frame, the inflatable support air bag includes several section air bags, each section air bag is connected by air passage, one end of the inflatable support air bag is fixedly connected with the side of the main frame, support partition is arranged between each section air bag;The drive cylinder is fixedly connected with the main frame, the drive rod of the drive cylinder is fixedly connected with the side wall of tunnel;The inflatable support air bag is connected with the inflation device.

Description

Technical Field

[0001] This invention belongs to the field of rail transit engineering technology, and in particular, it is a rapidly deployable inflatable evacuation platform system. Background Technology

[0002] While urban rail transit, as a green mode of transportation, brings people high efficiency, comfort, and economy, it also poses certain safety hazards. For example, in rail transit lines currently in operation, when passengers evacuate to the station platform via the tunnel platform, the tunnel platform is disconnected at the junction of the tunnel platform, the platform end, and the connecting passageway due to the presence of air-raid shelter doors on both sides of the track. Passengers must descend from the tunnel platform to the track bed via stairs, and then walk a considerable distance on the track bed before evacuating to the platform or the platform next to the entrance of the connecting passageway via stairs at the platform end. Most rail transit engineering projects have drainage ditches in the center of the track bed. These ditches often accumulate silt, and some, due to various reasons, lack covers. This causes passengers to stumble and fall during evacuation, increasing the risk of stampedes. Furthermore, the haphazard arrangement of cables crossing the track bed, along with electrical equipment such as rail contact points and beacons, poses a risk of electric shock during evacuation. Most critically, in the presence of large amounts of water within the rail transit tunnel, this evacuation method can easily lead to catastrophic consequences in the event of a subway flood. For example, in tunnel connecting passages or crossovers, the tunnel platform is disconnected. Passengers must descend from the tunnel platform to the track bed via stairs, then walk a considerable distance on the track bed before ascending again via stairs to the platform or another tunnel platform.

[0003] Existing rail transit evacuation platforms are typically made of metal, fiberglass, and cement, each with its own drawbacks. Metal evacuation platforms are conductive, posing a risk of electric shock to evacuating passengers during floods; fiberglass platforms are non-recyclable, contradicting modern environmental principles; cement platforms are heavy, have poor insulation in humid environments, and low strength. Furthermore, these materials lack elasticity and cannot be extended or retracted, failing to address the inherent defects of existing evacuation platforms and creating challenges for their renovation and construction. Summary of the Invention

[0004] The purpose of this invention is to provide a rapidly deployable inflatable evacuation platform system. The evacuation platform is made of multiple air bladders and a rigid partition frame between the air bladders. The rigid partition frame between the air bladders ensures the shape, size, stability, and load-bearing capacity of the evacuation platform after inflation. When deflated, the evacuation platform is small in volume, lightweight, and has a large weight-to-area ratio. It is an evacuation platform that can be extended and deployed in the axial direction after inflation. It has strong load-bearing capacity and high plasticity. In use, it can quickly and reliably connect the tunnel platform and the platform or the disconnected area between the evacuation platform, speeding up passenger evacuation and improving evacuation safety. It is an ideal solution to solve the defects of the original evacuation platform's fragmented structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rapidly deployable inflatable evacuation platform system includes one or more evacuation platforms connected in series. Each evacuation platform includes a main frame, an inflatable support airbag, a drive cylinder, and an inflation device. A slide rail is provided between the main frame and the tunnel floor, allowing the main frame to move perpendicularly to the track on the slide rail. The inflatable support airbag is mounted on the main frame and includes several sub-airbags connected by air channels. One end of the inflatable support airbag is fixedly connected to the side of the main frame, and support partitions are provided between the sub-airbags. The drive cylinder is fixedly connected to the main frame, and its drive rod is fixedly connected to the tunnel sidewall. The inflatable support airbag is connected to the inflation device.

[0007] Furthermore, the main frame includes a horizontal base plate, the bottom of which is located on top of two parallel slide rails. The slide rails are fixed to the ground of the tunnel and perpendicular to the vehicle track. The bottom surface of the base plate is provided with guide plates corresponding to each slide rail. Each guide plate is located inside the two slide rails and is parallel to the slide rails, so that the base plate can slide along the slide rails.

[0008] Furthermore, the inflatable support airbag includes several vertical support partitions and a vertical end plate located at the end of the inflatable support airbag; the airbags are provided between adjacent support partitions and between the end plate and adjacent support partitions; the support partition includes a horizontal upper support plate, which is rectangular and has two opposite long sides and two short sides, one of the long sides extending downward to form a vertical first support plate, and each of the two short sides extending downward to form a vertical second support plate; the upper support plate, the first support plate, the second support plate and the bottom plate form an accommodating space with an opening facing the end plate; the airbag is located in the corresponding accommodating space, and the airbag includes two sidewalls connected by pleats, so that the airbag can be deployed in the horizontal direction; the first support plate and the end plate of each support partition are fixedly connected to the sidewall of the corresponding airbag, and each first support plate and the sidewall of the corresponding airbag are provided with several communicating first air holes that communicate with the airbag.

[0009] Furthermore, the inflation device is an air storage tank;

[0010] The number of inflatable support airbags is one, located on one side of the main frame; in the evacuation platform, Z-shaped side plates extend upward from both sides of the top surface of the base plate, each side plate including a first side plate, a second side plate, and a third side plate connected perpendicularly to each other in sequence; the first side plate extends upward from the edge of the base plate and is parallel to the guide plate, the second and third side plates extend upward from the inside of the base plate, the second side plate is perpendicular to the guide plate, and the third side plate is parallel to the guide plate; a horizontal rectangular top plate is provided between the tops of the first, second, and third side plates, and the second side plate has several [unclear text - possibly related to tunnel sidewalls]. The driving cylinder; the space formed between the second side plate, the third side plate, and the bottom plate is provided with the inflatable support airbag, the middle of the end plate of the inflatable support airbag is provided with a second air hole communicating with the side wall of the corresponding sub-airbag, the end plate is fixedly connected to the side of the third side plate, the middle of the third side plate is provided with an inflation pipe communicating with the second air hole, the inflation pipe is provided with a first valve, and the end of the inflation pipe is connected to the air storage tank, the air storage tank is located on the bottom plate; the air inlet of the driving cylinder is connected to the air storage tank through a pipe with a second valve; both the first valve and the second valve are connected to a control device, the control device is located on the top plate; or

[0011] Two inflatable support airbags are located on both sides of the main frame; U-shaped side plates extend upward from both sides of the top surface of the base plate, each side plate including a fourth, fifth, and sixth side plate connected perpendicularly to each other in sequence; the fourth, fifth, and sixth side plates extend upward from the edge of the base plate and are parallel to the guide plate, while the fifth side plate is perpendicular to the guide plate; a horizontal rectangular top plate is provided between the tops of the fourth, fifth, and sixth side plates, and several drive cylinders are provided on the side of the fifth side plate facing the tunnel sidewall; the inflation... A second air hole is provided between the middle of the end plate of the air support airbag and the side wall of the corresponding sub-airbag. The end plates of the two inflatable support airbags are fixedly connected to the sides of the fourth side plate and the sixth side plate, respectively. An inflation tube communicating with the corresponding second air hole is provided through the middle of the fourth side plate and the sixth side plate. The inflation tube is provided with a third valve, and the end of the inflation tube is connected to the air storage tank, which is located between the fourth side plate and the sixth side plate. The air inlet of the drive cylinder is connected to the air storage tank through a pipe with a fourth valve. Both the third valve and the fourth valve are connected to a control device, which is located on the top plate.

[0012] Furthermore, each of the gas compartments is equipped with a nitrogen generator, which includes a mounting plate. A filter housing is fixedly mounted on the mounting plate, and sodium azide is filled between the filter housing and the mounting plate. An igniter is located at the bottom of the sodium azide, and the igniter is connected to a trigger cable, which is connected to the control device. The mounting plate of the nitrogen generator is fixedly connected to the corresponding gas compartment and the first support plate by bolts.

[0013] Furthermore, the air bladder is equipped with a pressure sensor and a displacement sensor. The pressure sensor is connected to the trigger cable, and the displacement sensor is connected to the controller of the first or third valve of the inflation tube.

[0014] Furthermore, the inflation device is a nitrogen generator; the nitrogen generator includes a mounting plate, on which a filter screen housing is fixedly mounted, and sodium azide is filled between the filter screen housing and the mounting plate. An igniter is located at the bottom of the sodium azide housing, and the igniter is connected to a trigger cable, which is connected to an ignition switch. Each of the gas compartments is equipped with the nitrogen generator, and the mounting plate of the nitrogen generator is fixedly connected to the corresponding gas compartment and the first support plate by bolts.

[0015] A vertical seventh side plate extends upward from the center of the base plate, and the seventh side plate is parallel to the guide plate; there are one or two inflatable support airbags located on the side of the seventh side plate, and the end plate of the inflatable support airbag is fixedly connected to the side of the seventh side plate; the drive cylinder is located on the side of the seventh side plate facing the tunnel sidewall.

[0016] Furthermore, a railing is provided on the side of the top plate facing the tunnel sidewall, and the control device is located on this railing; and / or

[0017] The sides of the guide plate and the slide rail are inclined surfaces.

[0018] Furthermore, the first pores are distributed at equal angular intervals on a circumference; and / or

[0019] The first support plate and the bottom of the airbag are provided with notches; and / or

[0020] The tunnel sidewall has a recess, and at least a portion of the evacuation platform is located within the recess; and / or

[0021] The main frame is a thermoplastic composite material, and the air bladder is a composite material of polyether-type thermoplastic polyurethane and nylon fabric; and / or

[0022] The cross-sectional shape of the airbag is fan-shaped or polygonal.

[0023] Furthermore, the evacuation platform is located between the platform and the tunnel platform, which are situated on the side of the train track. A civil defense door frame is installed between the platform and the tunnel platform, and the evacuation platform is located at the end of the tunnel platform. When the evacuation platform is deployed, it can bypass the civil defense door frame and the openable civil defense door installed on the frame, connecting the platform and the tunnel platform. The outermost airbag of the inflatable support airbag has a first locking device and a second locking device on the side corresponding to the platform, respectively.

[0024] The evacuation platform is located between the two disconnected tunnel platforms, which are situated on the side of the train track. When the evacuation platform is deployed, it can connect the two disconnected tunnel platforms in a straight line. The outermost airbag side of the inflatable support airbag is equipped with a first locking device and a second locking device, respectively, on the side corresponding to the tunnel platform.

[0025] The first locking device is one coupler or electromagnet of the James coupler, and the second locking device is the other coupler or steel plate of the James coupler.

[0026] The beneficial effects of this invention are as follows: This invention provides a rapidly deployable inflatable evacuation platform system suitable for personnel evacuation in special areas such as stations and connecting passages in urban rail transit, suburban railways, and maglev projects. It features a rapidly deployable and mobile functional structure, quickly covering functionally disconnected areas between tunnel platforms and stations or between discontinuous tunnel platforms. This eliminates the time-consuming and laborious process of passengers climbing stairs during evacuation, ensuring the speed, stability, continuity, safety, and visibility of the evacuation platform. In particular, it avoids the most dangerous process of evacuating passengers from flooded track beds, eliminating the safety hazard that could lead to major accidents. The main frame is made of thermoplastic composite material that combines insulation and mechanical strength, making it both environmentally friendly and reducing equipment costs. The rapidly deployable inflatable evacuation platform system eliminates the need for large-scale civil engineering construction on existing building structures, allowing for the modification of existing rail transit lines in a very short construction period. This saves significant labor hours and building materials, reduces overall project costs, and facilitates large-scale deployment and use. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the installation state structure of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0028] Figure 1A This is a front view of the installation state of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0029] Figure 1B This is a side view of the installation state of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0030] Figure 1C This is a top view of the installation state of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0031] Figure 1D This is a longitudinal sectional view of the installation state of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0032] Figure 2 This is a three-dimensional structural schematic diagram of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be rapidly deployed.

[0033] Figure 2A This is a three-dimensional structural schematic diagram of another angle of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0034] Figure 2B This is a three-dimensional structural schematic diagram of another angle of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0035] Figure 2CThis is a front view of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0036] Figure 2D This is a rear view of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0037] Figure 2E This is a left view of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0038] Figure 2F This is a right view of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0039] Figure 2G This is a top view of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be deployed quickly.

[0040] Figure 2H This is a longitudinal sectional schematic diagram of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be rapidly deployed.

[0041] Figure 2I yes Figure 2H Enlarged schematic diagram of point J in the middle.

[0042] Figure 3 This is a schematic diagram of the supporting partition of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0043] Figure 4 This is a schematic diagram of the air bladder structure of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be deployed quickly.

[0044] Figure 4A This is a front view of the air bladder in Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be deployed quickly.

[0045] Figure 4B This is a side view of the air bladder in Embodiment 1 of the rapidly deployable inflatable evacuation platform system of the present invention.

[0046] Figure 5 This is a schematic diagram of the usage state of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0047] Figure 5A This is a schematic diagram of the usage state from another angle of Embodiment 1 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0048] Figure 6 This is a schematic diagram of the usage state of Embodiment 2 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0049] Figure 7This is a schematic diagram of the structure of the inflatable support airbag in Embodiment 3 of the inflatable evacuation platform system of the present invention, which can be deployed quickly.

[0050] Figure 8 This is a schematic diagram of the structure of Embodiment 4 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0051] Figure 8A This is a front view of the main frame of Embodiment 4 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0052] Figure 8B This is a rear view of the main frame of Embodiment 4 of the inflatable evacuation platform system of the present invention, which can be quickly deployed.

[0053] Figure 9 This is a schematic diagram of the nitrogen generator of the rapidly deployable inflatable evacuation platform system of the present invention.

[0054] Figure 9A This is a schematic diagram of the nitrogen generator of the inflatable evacuation platform system that can be rapidly deployed according to the present invention.

[0055] Figure 10 This is a schematic diagram of the structure of Embodiment 5 of the inflatable evacuation platform system of the present invention, which can be deployed quickly.

[0056] Figure 10A This is a schematic diagram of the main frame of Embodiment 5 of the inflatable evacuation platform system of the present invention, which can be quickly deployed. Detailed Implementation

[0057] The structure of the present invention and the desired technical effects will be described below with reference to specific embodiments and accompanying drawings. However, the selected embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0058] like Figure 1-Figure 1D As shown, this is Embodiment 1 of the present invention. The present invention provides a rapidly deployable inflatable evacuation platform system, installed inside a tunnel 1. The structure of the tunnel 1 is prior art and will not be described in detail. A platform 2 and a tunnel platform 3 are provided inside the tunnel 1, located on the side of the train track 11 within the tunnel 1. A civil defense door frame 4 is provided between the platform 2 and the tunnel platform 3 for installing civil defense doors. An evacuation platform 5 is provided at the end of the tunnel platform 3. When the evacuation platform 5 is deployed, it can bypass the civil defense door frame 4 and the openable civil defense door installed on the civil defense door frame 4, connecting the platform 2 and the tunnel platform 3, thus eliminating the need for the ladders found in the prior art for the tunnel platform 3 in the present invention.

[0059] like Figures 1-2As shown, the evacuation platform 5 includes a main frame 50, an inflatable support airbag 7, a drive cylinder 54, and an air tank 8 (inflating device). A slide rail 6 is provided between the main frame 50 and the ground of the tunnel 1, allowing the main frame 50 to move perpendicularly to the travel track 11 on the slide rail 6. The inflatable support airbag 7 is provided on the main frame 50, and the inflatable support airbag 7 includes several sub-airbags 73, which are connected by air passages. One end of the inflatable support airbag 7 is fixedly connected to the side of the main frame 50. In this embodiment, there is one inflatable support airbag 7, located on one side of the main frame 50. Support partitions 71 are provided between the sub-airbags 73. The drive cylinder 54 is fixedly connected to the main frame 50, and the drive rod 541 of the drive cylinder 54 is fixedly connected to the side wall of the tunnel 1. The air inlet of the drive cylinder 54 is connected to the air outlet of the air tank 8, and the air inlet of the sub-airbag 73 of the inflatable support airbag 7 is connected to the air outlet of the air tank 8.

[0060] Specifically, such as Figure 2-Figure 2H As shown, the main frame 50 includes a horizontal base plate 51. The bottom of the base plate 51 is located on top of two parallel slide rails 6, which are fixed to the ground of the tunnel 1 and perpendicular to the vehicle track 11. The bottom surface of the base plate 51 is provided with guide plates 511 corresponding to each slide rail 6. Each guide plate 511 is located inside the two slide rails 6 and parallel to them, allowing the base plate 51 to slide along the slide rails 6. Preferably, the sides of the guide plates 511 and the slide rails 6 are inclined surfaces. Z-shaped side plates 52 extend upwards from both sides of the top surface of the base plate 51. Each side plate 52 includes a first side plate 521, a second side plate 522, and a third side plate 523 connected perpendicularly to each other in sequence. The first side plate 521 extends upward from the edge of the base plate 51 and is parallel to the guide plate 511. The second side plate 522 and the third side plate 523 extend upward from the interior of the base plate 51, with the second side plate 522 perpendicular to the guide plate 511 and the third side plate 523 parallel to the guide plate 511. A horizontal rectangular top plate 53 is provided between the tops of the first side plate 521, the second side plate 522, and the third side plate 523. The top surface of the top plate 53 is flush with the top surface of the tunnel platform 3, and the end of the tunnel platform 3 is connected to the top of the second side plate 522. A plurality of the aforementioned drive cylinders 54 are provided on the side of the second side plate 522 facing the sidewall of the tunnel 1. Specifically, as shown... Figure 1C As shown, the tunnel 1 has a recess 12 on its side wall, and at least a portion of the evacuation platform 5 is located in the recess 12.

[0061] Specifically, the main frame 50 is made of recyclable and environmentally friendly thermoplastic composite material (FRT). FRT boasts advantages such as low density, high strength, fast processing, and recyclability, making it a high-performance, low-cost, and environmentally friendly new type of composite material. It has partially replaced expensive engineering plastics, thermosetting composites (FRP), and lightweight metal materials (aluminum-magnesium alloys), and has broad application prospects in aircraft, automobiles, trains, medical devices, and sports. In the early stages of automotive lightweighting, thermosetting composites were the first to be used. In recent years, thermoplastic composites have gradually entered the market, and due to their ability to reduce weight while lowering costs, market demand is increasing year by year. Thermoplastic composites offer a high degree of flexibility in terms of performance; their physical, mechanical, and chemical properties can be freely altered through different materials and their proportions. Furthermore, thermoplastic composites possess excellent recyclability, reducing costs, and can be recycled and reused, making them more in line with low-carbon and environmentally friendly requirements.

[0062] The inflatable support airbag 7 is disposed within the space formed between the second side plate 522, the third side plate 523, and the bottom plate 51. The inflatable support airbag 7 includes several vertical support partitions 71 and a vertical end plate 72 located at the end of the inflatable support airbag 7. The end plate 72 is rectangular and fixedly connected to the side of the third side plate 523. The sub-airbags 73 are disposed between adjacent support partitions 71 and between the end plate 72 and adjacent support partitions 71. Figure 2H , Figure 2I , Figure 3 As shown, the support partition 71 includes a horizontal upper support plate 710, which is rectangular and has two opposing long sides and two short sides. One long side extends downwards to form a vertical first support plate 711, and each of the two short sides extends downwards to form a vertical second support plate 712. The first support plate 711 has a notch 7111 at its bottom to accommodate uneven ground. An accommodating space 74 with an opening facing the end plate 72 is formed between the upper support plate 710, the first support plate 711, the second support plate 712, and the bottom plate 51. Figure 2H , Figure 2I , Figure 4-Figure 4BAs shown, the air bladder 73 is located within the corresponding receiving space 74. The air bladder 73 includes two sidewalls 731 connected by a pleated portion 732, allowing the air bladder 73 to unfold horizontally and form a closed cavity. The bottom of the air bladder 73 also has a notch 733 to accommodate uneven ground. The first support plate 711 and the end plate 72 of each supporting partition 71 are fixedly connected to the sidewall 731 of the corresponding air bladder 73. A plurality of communicating first air holes 75 are provided between the first support plate 711 and the sidewall 731 of the corresponding air bladder 73, communicating with the air bladder 73 and connecting the various air bladders 73. Specifically, the first air holes 75 are distributed at equal angular intervals on a circumference; the more holes, the faster the inflation speed. For example, there are six in this embodiment, but this is not a limitation. It should be understood that no first air hole is provided between the outer first support plate 711 and the corresponding air bladder 73 to maintain the airtightness and air pressure of each air bladder 73. A second air hole 76 is provided between the middle of the end plate 72 and the side wall of the corresponding air bladder 73. An inflation pipe 77 communicating with the second air hole 76 is passed through the middle of the third side plate 523. The inflation pipe 77 is provided with a first valve 771, and the end of the inflation pipe 77 is connected to the air storage tank 8, which is located on the bottom plate 51 and is used to inflate each air bladder 73 and the drive cylinder 54. The air inlet of the drive cylinder 54 is connected to the air storage tank 8 through a pipe with a second valve (not shown in the figure). Both the first valve 771 and the second valve are connected to a control device 9, which is located on the top plate 53 and has an industrial computer and battery. It can control the opening and closing of the inflation pipe 77 and the extension and retraction of the drive rod 541 of the drive cylinder 54. Furthermore, a railing 55 is provided on the side of the top plate 53 facing the side wall of the tunnel 1 to prevent passengers from falling and getting injured. At this time, the control device 9 is located on the railing 55.

[0063] Specifically, the airbag 73 is a composite material of polyether-type thermoplastic polyurethane and nylon fabric. The nylon fabric is preferably high-strength nylon fabric, which is made of high-strength TPU composite material formed by the composite of polyether-type thermoplastic polyurethane and high-strength nylon fabric to create an air-barrier layer. TPU stands for Thermoplastic Polyurethane Elastomer, also known as thermoplastic PU, and is a composite material blown into a film. TPU composites exhibit excellent wear resistance, good elasticity, low-temperature resistance, excellent ozone resistance, high hardness, high strength, resistance to yellowing, and good environmental performance, making them a high-quality material commonly used in automotive parts, aerospace components, and high-end sports equipment. The airbag of this invention uses a TPU composite material, including a flame-retardant TPU coating, a high-strength nylon fabric layer, and a heat-reflective coating. The TPU composite material has excellent heat resistance, flame retardancy, and antistatic properties, and is ultra-light and ultra-thin, meeting the strength and safety performance requirements of evacuation platforms.

[0064] like Figure 1 As shown, in normal use without an emergency, the evacuation platform of this invention is located inside the air-raid shelter door frame 4, with each airbag 73 in an uninflated and folded state. The outer support partition 71 abuts against the inner side of the air-raid shelter door frame 4, without obstructing the tunnel passage or affecting the vehicle's movement on the track 11. The sliding door 31 at the end of the tunnel platform 3 is closed. In the event of an emergency, when it is necessary to evacuate passengers from the train, such as... Figure 5 , Figure 5A As shown, drivers and passengers first reach the end of the tunnel platform 3 via the tunnel platform 3, then open the sliding door 31 of the tunnel platform 3 and enter the top plate 53 of the evacuation platform 5 of this invention. Using the control device 9 on the railing 55, the evacuation platform 5 can quickly cover the gap between the tunnel platform 3 and the platform 2 caused by the air-raid shelter door frame 4, bypassing the air-raid shelter door frame 4 and the air-raid shelter door, reaching the platform 2 and connecting the platform 2 with the tunnel platform 3. Unlike existing technologies, passengers do not need to descend stairs to the tunnel platform 3, walk to the platform 2, and then ascend stairs to the platform 2; instead, they can directly and smoothly reach the platform 2 from the tunnel platform 3 via the unfolded evacuation platform. After the danger has subsided, the gas in the air bladder 73 is released through the exhaust valve of the air tank 8, and the evacuation platform is folded back into its original position. The evacuation platform 5 of this invention achieves the safety requirements of speed, stability, continuity, safety, and visibility. The specific workflow is as follows: After the control device 9 is turned on, the compressed air in the air tank 8 first starts the drive cylinder 54, pushing the main frame 50 to move laterally from the storage position to the running track 11 along the slide rail 6 installed on the side of the track bed. Then, the compressed gas in the air tank 8 is injected into the air bladder 73 through the inflation pipe 77. The TPU composite material makes multiple sets of folded air bladders 73, which expand one by one from back to front, causing them to move each support partition 71. When moving, they move towards the platform 2 according to the predetermined shape and size of the air bladder. When all the air bladders 73 are inflated to the predetermined size, the successively inflated and opened air bladders 73 and support partitions 71 form a continuous and solid channel. The inflatable support air bladder 7 automatically expands to the platform 2 position where passengers can evacuate, providing a reliable and fast evacuation method for evacuated passengers, allowing passengers to escape quickly and safely to a safe location. The inflatable evacuation platform of this invention can be restored to its stored state in two ways: ① Open the vent valve on the air tank 8 and manually push the inflatable evacuation platform 5 to restore the stored state of the air bladder 73; ② A vacuum suction device can be connected to the vent valve on the air tank 8 to assist the inflatable evacuation platform 5 in restoring the stored state of the air bladder 73.

[0065] The evacuation platform of this invention uses pressurized gas to propel airbags forward, thus avoiding the dangers caused by power outages in rail transit. The support partition 71 with folded edges on three sides (upper support plate 710 and two second support plates 712) between the airbags forms a rigid support block, which can greatly reduce air pressure fluctuations between the airbags 73 and reduce the unsettling feeling caused by the elastic deformation of the airbags 73. The notch 7111 left under the first support plate 711 of the support partition 71 and the notch 733 at the bottom of the airbags 73 allow the airbags 73 to adapt to various uneven parts of the track bed when inflated. These features enable the evacuation platform 5 to maximize the sturdiness and reliability of passengers during evacuation.

[0066] In this embodiment, the outermost airbag 73 of the inflatable support airbag 7 is provided with a first locking device and a second locking device on the side corresponding to the platform 2, respectively, to lock the position after the inflatable support airbag 7 is in place. The first locking device and the second locking device can be two couplers of a James coupler that can hook each other, or the first locking device and the second locking device can be an electromagnet and a steel plate, respectively.

[0067] like Figure 6 As shown, this is Embodiment 2 of the rapidly deployable inflatable evacuation platform system of the present invention. The difference between Embodiment 1 and Embodiment 2 is that the evacuation platform 5 is located between two tunnel platforms 3, which are disconnected due to their location at connecting passages or crossovers within the tunnel. When the evacuation platform 5 is deployed, it can linearly connect the two disconnected tunnel platforms 3, allowing for passenger evacuation in the manner described in Embodiment 1. In this embodiment, the outermost airbag 73 of the inflatable support airbag 7 has a first locking device and a second locking device on its corresponding side to the tunnel platform 3, respectively, to lock the position after the inflatable support airbag 7 is in place. The first and second locking devices can be two hooks that can hook onto each other using a James coupler, or they can be an electromagnet and a steel plate, respectively. Furthermore, when the interval between the two tunnel platforms 3 is large, multiple evacuation platforms 5 can be installed in series.

[0068] like Figure 7 The diagram shows the structure of the inflatable support airbag 7 in Embodiment 3 of the rapidly deployable inflatable evacuation platform system of the present invention. In this embodiment, the cross-sectional shape of the airbag 73 and the support partition 71 is fan-shaped. The cross-sectional shape of the airbag 73 can also be polygonal.

[0069] like Figure 8 , Figure 8A , Figure 8BAs shown, this is Embodiment 4 of the rapidly deployable inflatable evacuation platform system of the present invention. The difference between Embodiment 4 and Embodiment 1 is that there are two inflatable support airbags 7, located on both sides of the main frame 50. Side plates 52 with a U-shaped cross-section extend upwards from both sides of the top surface of the base plate 51. Each side plate 52 includes a fourth side plate 524, a fifth side plate 525, and a sixth side plate 526 connected perpendicularly to each other in sequence. The fourth side plate 524, the fifth side plate 525, and the sixth side plate 526 extend upwards from the edge of the base plate 51 and are parallel to the guide plate 511, while the fifth side plate 525 is perpendicular to the guide plate 511. A horizontal rectangular top plate 53 is provided between the tops of the fourth side plate 524, the fifth side plate 525, and the sixth side plate 526. Several drive cylinders 54 are provided on the side of the fifth side plate 525 facing the tunnel 1 sidewall. A second air hole is provided between the middle of the end plate 72 of the inflatable support airbag 7 and the side wall of the corresponding sub-airbag 73. The end plates 72 of the two inflatable support airbags 7 are fixedly connected to the sides of the fourth side plate 524 and the sixth side plate 526, respectively. An inflation pipe 77 communicating with the corresponding second air hole is passed through the middle of the fourth side plate 524 and the sixth side plate 526. The inflation pipe 77 is provided with a third valve, and the end of the inflation pipe 77 is connected to an air storage tank 8, which is located between the fourth side plate 524 and the sixth side plate 526. The air inlet of the drive cylinder 54 is connected to the air storage tank 8 through a pipe with a fourth valve. Both the third valve and the fourth valve are connected to a control device, which is located on the top plate 53.

[0070] In addition, in the above embodiments, the power for the movement of the inflatable support airbag 7 can come from both the gas storage tank 8 and chemical gas supply. The airbag 73 expands after being inflated by the gas storage tank 8, pushing the inflatable support airbag 7 to a preset position and automatically closing the gas supply valve of the gas storage tank 8. Because the gas storage tank 8 inflation method is simple and convenient to maintain and repair, and has low operating costs, the first valve on the inflation pipe of the inflatable support airbag 7 is activated first to use the air pressure in the gas storage tank 8 during use. However, to cope with special situations, each airbag 73 of the evacuation platform 5 is equipped with a nitrogen generator; such as... Figure 9 , Figure 9AAs shown, the nitrogen generator 78 includes a mounting plate 781, on which a filter housing 782 is fixedly mounted. Sodium azide is filled between the filter housing 782 and the mounting plate 781. An igniter is located at the bottom of the sodium azide, and the igniter is connected to a trigger cable 783, which is connected to the control device 9. The mounting plate 781 of the nitrogen generator 78 is fixedly connected to the corresponding gas distribution bag 73 and the first support plate 711 by bolts. Preferably, the gas distribution bag 73 contains a pressure sensor and a displacement sensor. The pressure sensor is connected to the igniter, and the nitrogen generator 78 uses an electric ignition triggering method. When the evacuation platform 5 uses the nitrogen generator 78, the control device 9 sends a start signal to the nitrogen generator 78 in the gas distribution bag 73 via the trigger cable 783. Upon receiving a signal, the nitrogen generator 78 ignites the gas generator, producing a large amount of gas (the airbag 73 deploys within 0.03 seconds of triggering; the airbag 73 on the evacuation platform 5 is for passenger safety, and the inflating gas inside is always an inert gas, typically non-flammable nitrogen). After filtration and cooling, the gas enters the airbag 73, causing it to deploy rapidly in a very short time. The displacement sensor is connected to the controller of the exhaust valve (the first or third valve of the inflation pipe 77) at the outlet of the gas tank 8. Pressure and displacement sensors identify the air pressure and position of the airbags 73. If the airbags fail to reach their designated positions due to insufficient air pressure or difficulties in the air passage, the nitrogen generators 78 installed in each airbag 73 of the evacuation platform 5 will ignite as needed. The main combustibles in the igniters are sodium nitride and oxidizer. When triggered, a large amount of nitrogen will be released to replenish the air pressure in the airbags 73, allowing the evacuation platform 5 to reach the pre-determined position and enabling passengers on the evacuation platform 5 to quickly leave the accident area.

[0071] like Figure 10 , Figure 10A As shown, this is Embodiment 5 of the inflatable evacuation platform system of the present invention, which can be deployed quickly. The difference between Embodiment 5 and Embodiment 1 is that the inflatable evacuation platform 5 of the present invention does not use the air storage tank 8 when used in certain narrow and special sections, and is used alone. Figure 9 The nitrogen generator 78 shown serves as a gas filling device to reduce the space occupied. In this embodiment, the same... Figure 9AAs shown, the mounting plate 781 of the nitrogen generator 78 is fixedly connected to the corresponding gas bladder 73 and the first support plate 711 by bolts, and the end plate 72 does not need to be provided with a second gas hole. The trigger cable 783 of the nitrogen generator 78 is connected to the ignition switch. In this embodiment, a vertical seventh side plate 56 extends upward from the middle of the base plate 51, and the seventh side plate 56 is parallel to the guide plate 511. There are two inflatable support gas bladders 7, located on both sides of the seventh side plate 56, and the end plates 72 of the two inflatable support gas bladders 7 are fixedly connected to both sides of the seventh side plate 56. The drive cylinder is located on the side of the seventh side plate 56 facing the side wall of the tunnel 1.

[0072] In summary, the advantages of the rapidly deployable inflatable evacuation platform system of the present invention are as follows:

[0073] 1. This invention connects the platform and tunnel platform in areas where they are separated by the air-raid shelter door frame or in disconnected tunnel platforms using an inflatable, rapidly deployable evacuation platform. This allows the tunnel platform to smoothly connect with the platform, enabling passengers to evacuate directly and straight to the platform without having to descend to the track bed. This greatly improves the safety, continuity, and reliability of the evacuation path at the interface between the section and the station platform, and reduces evacuation risks.

[0074] 2. This invention adopts a modular design. Its operation is powered by a self-contained compressed air tank and nitrogen generator, and controlled by a self-powered control device. The inflated airbag provides a smooth evacuation route for passengers. It features small storage space, no external power supply required, rapid and trouble-free deployment, easy operation, high safety, adaptability to various uneven track surfaces, no need for existing track modifications, and simple and easy installation.

[0075] 3. This invention prioritizes passenger safety and optimizes existing evacuation methods, addressing the time-consuming and laborious process of climbing stairs and stumbling on complex track surfaces during emergency evacuations. It eliminates numerous safety hazards inherent in existing evacuation platforms. Furthermore, without altering the original engineering structure, this invention improves the evacuation method of existing tunnel platforms through a meticulously designed, rapidly deployable inflatable evacuation platform, significantly enhancing passenger evacuation safety, reducing operational risks, and fully demonstrating a people-oriented design philosophy. Using only environmentally friendly materials, it has excellent application prospects in similar engineering fields.

[0076] This invention is defined by the claims. However, based on this, those skilled in the art can make various obvious changes or modifications, all of which should be within the main spirit and protection scope of this invention.

Claims

1. A rapidly deployable inflatable evacuation platform system, characterized in that, The system includes one or more interconnected evacuation platforms. Each evacuation platform comprises a main frame, an inflatable support airbag, a drive cylinder, and an inflation device. A slide rail is provided between the main frame and the tunnel floor, allowing the main frame to move perpendicularly to the vehicle track within the tunnel. The inflatable support airbag is mounted on the main frame and comprises several sub-airbags connected by air passages. One end of the inflatable support airbag is fixedly connected to the side of the main frame, and a support partition is provided between the sub-airbags. The drive cylinder is fixedly connected to the main frame, and its drive rod is fixedly connected to the tunnel sidewall. The inflatable support airbag is connected to the inflation device. The main frame includes a horizontal base plate, the bottom of which is located on top of two parallel slide rails. The slide rails are fixed to the ground of the tunnel and perpendicular to the vehicle track. The bottom surface of the base plate is provided with guide plates corresponding to each slide rail. Each guide plate is located inside the two slide rails and is parallel to the slide rails, so that the base plate can slide along the slide rails. The inflatable support airbag includes several vertical support partitions and a vertical end plate located at the end of the inflatable support airbag; the airbags are provided between adjacent support partitions and between the end plate and adjacent support partitions; each support partition includes a horizontal upper support plate, which is rectangular and has two opposite long sides and two short sides, one of the long sides extending downward to form a vertical first support plate, and each of the two short sides extending downward to form a vertical second support plate; the upper support plate, the first support plate, the second support plate and the bottom plate form an accommodating space with an opening facing the end plate; the airbags are located in the corresponding accommodating spaces, and each airbag includes two sidewalls connected by pleats, allowing the airbags to unfold in the horizontal direction; the first support plate and the end plate of each support partition are fixedly connected to the sidewall of the corresponding airbag, and each first support plate and the sidewall of the corresponding airbag have several communicating first air holes that communicate with the airbag.

2. The rapidly deployable inflatable evacuation platform system according to claim 1, characterized in that, The inflation device is an air storage tank; The number of inflatable support airbags is one, located on one side of the main frame; in the evacuation platform, Z-shaped side plates extend upward from both sides of the top surface of the base plate, each side plate including a first side plate, a second side plate, and a third side plate connected perpendicularly to each other in sequence; the first side plate extends upward from the edge of the base plate and is parallel to the guide plate, the second and third side plates extend upward from the inside of the base plate, the second side plate is perpendicular to the guide plate, and the third side plate is parallel to the guide plate; a horizontal rectangular top plate is provided between the tops of the first, second, and third side plates, and the second side plate has several [unclear text - possibly related to tunnel sidewalls]. The driving cylinder; the space formed between the second side plate, the third side plate, and the bottom plate is provided with the inflatable support airbag, the middle of the end plate of the inflatable support airbag is provided with a second air hole communicating with the side wall of the corresponding sub-airbag, the end plate is fixedly connected to the side of the third side plate, the middle of the third side plate is provided with an inflation pipe communicating with the second air hole, the inflation pipe is provided with a first valve, and the end of the inflation pipe is connected to the air storage tank, the air storage tank is located on the bottom plate; the air inlet of the driving cylinder is connected to the air storage tank through a pipe with a second valve; both the first valve and the second valve are connected to a control device, the control device is located on the top plate; or Two inflatable support airbags are located on both sides of the main frame; U-shaped side plates extend upward from both sides of the top surface of the base plate, each side plate including a fourth, fifth, and sixth side plate connected perpendicularly to each other in sequence; the fourth, fifth, and sixth side plates extend upward from the edge of the base plate and are parallel to the guide plate, while the fifth side plate is perpendicular to the guide plate; a horizontal rectangular top plate is provided between the tops of the fourth, fifth, and sixth side plates, and several drive cylinders are provided on the side of the fifth side plate facing the tunnel sidewall; the inflation... A second air hole is provided between the middle of the end plate of the air support airbag and the side wall of the corresponding sub-airbag. The end plates of the two inflatable support airbags are fixedly connected to the sides of the fourth side plate and the sixth side plate, respectively. An inflation tube communicating with the corresponding second air hole is provided through the middle of the fourth side plate and the sixth side plate. The inflation tube is provided with a third valve, and the end of the inflation tube is connected to the air storage tank, which is located between the fourth side plate and the sixth side plate. The air inlet of the drive cylinder is connected to the air storage tank through a pipe with a fourth valve. Both the third valve and the fourth valve are connected to a control device, which is located on the top plate.

3. The rapidly deployable inflatable evacuation platform system according to claim 2, characterized in that, Each of the gas-generating bags is equipped with a nitrogen generator. The nitrogen generator includes a mounting plate, on which a filter screen housing is fixedly mounted. Sodium azide is filled between the filter screen housing and the mounting plate. An igniter is located at the bottom of the sodium azide housing. The igniter is connected to a trigger cable, which is connected to the control device. The mounting plate of the nitrogen generator is fixedly connected to the corresponding gas distribution bag and the first support plate by bolts.

4. The rapidly deployable inflatable evacuation platform system according to claim 3, characterized in that: The air bladder is equipped with a pressure sensor and a displacement sensor. The pressure sensor is connected to the trigger cable, and the displacement sensor is connected to the controller of the first or third valve of the inflation tube.

5. The rapidly deployable inflatable evacuation platform system according to claim 1, characterized in that, The inflation device is a nitrogen generator; the nitrogen generator includes a mounting plate, on which a filter screen housing is fixedly mounted, and sodium azide is filled between the filter screen housing and the mounting plate. An igniter is located at the bottom of the sodium azide housing, and the igniter is connected to a trigger cable, which is connected to an ignition switch. Each of the gas compartments is equipped with the nitrogen generator, and the mounting plate of the nitrogen generator is fixedly connected to the corresponding gas compartment and the first support plate by bolts. A vertical seventh side plate extends upward from the center of the base plate, and the seventh side plate is parallel to the guide plate; there are one or two inflatable support airbags located on the side of the seventh side plate, and the end plate of the inflatable support airbag is fixedly connected to the side of the seventh side plate; the drive cylinder is located on the side of the seventh side plate facing the tunnel sidewall.

6. The rapidly deployable inflatable evacuation platform system according to claim 2, characterized in that: A railing is provided on the side of the roof facing the tunnel sidewall, and the control device is located on the railing; and / or The sides of the guide plate and the slide rail are inclined surfaces.

7. The rapidly deployable inflatable evacuation platform system according to claim 2, characterized in that: The first pores are distributed at equal angular intervals on a circumference; and / or The first support plate and the bottom of the airbag are provided with notches; and / or The tunnel sidewall has a recess, and at least a portion of the evacuation platform is located within the recess; and / or The main frame is a thermoplastic composite material, and the air bladder is a composite material of polyether-type thermoplastic polyurethane and nylon fabric; and / or The cross-sectional shape of the airbag is fan-shaped or polygonal.

8. The rapidly deployable inflatable evacuation platform system according to any one of claims 1 to 7, characterized in that, The evacuation platform is located between the station platform and the tunnel platform, which are situated on the side of the train track. A civil defense door frame is provided between the station platform and the tunnel platform, and the evacuation platform is located at the end of the tunnel platform. When the evacuation platform is deployed, it can bypass the civil defense door frame and the openable civil defense door on the civil defense door frame, connecting the station platform and the tunnel platform. The outermost airbag of the inflatable support airbag has a first locking device and a second locking device on the side corresponding to the station platform, respectively. or The evacuation platform is located between the two disconnected tunnel platforms, which are situated on the side of the train track. When the evacuation platform is deployed, it can connect the two disconnected tunnel platforms in a straight line. The outermost airbag side of the inflatable support airbag is equipped with a first locking device and a second locking device, respectively, on the side corresponding to the tunnel platform. The first locking device is one coupler or electromagnet of the James coupler, and the second locking device is the other coupler or steel plate of the James coupler.

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