Inflatable fire rescue support capable of quickly constructing emergency channel
The inflatable rescue support, with its modular connection and multi-layer protection design, solves the problems of insufficient connection mechanism and lack of protection for inflation interface in existing inflatable rescue supports, and realizes a rapid, stable and multi-environmental adaptable emergency passage.
Patent Information
- Application Number
- CN202511916168.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-18
- Publication Date
- 2026-02-10
AI Technical Summary
Existing inflatable rescue supports have shortcomings in their connection mechanism design, lack of protection mechanisms for the inflation interface, and limited structural functions, resulting in low assembly efficiency, large transportation volume, and susceptibility to damage in harsh environments.
A quick-assembly inflatable fire rescue support for emergency passages was designed, comprising a base, a disassembly mechanism, an inflatable frame, and an inflatable mechanism. It adopts a flame-retardant TPU film isolation layer, an aramid reinforcement layer, and an ultra-high molecular weight polyethylene fiber woven fabric protective layer, combined with modular connections of positioning grooves, a box, and positioning blocks, and is equipped with an inflatable nozzle protective cover and a rubber sealing gasket.
It enables rapid installation and disassembly, improves portability and deployment efficiency, ensures airtightness and structural stability, resists the intrusion of harsh environments, and provides life safety protection.
Smart Images

Figure CN121490302A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of inflatable fire rescue supports, in particular to an inflatable fire rescue support for quickly constructing an emergency passage. BACKGROUND
[0002] In current urban complex disaster rescue and underground space accident disposal, quickly constructing a safe and reliable temporary emergency passage is a key to improving the survival rate of survivors. Traditional rescue support devices mostly adopt metal frames or hydraulic structures, and have the limitations of large weight, long deployment time and poor adaptability to irregular spaces.
[0003] Although existing inflatable rescue equipment has the advantage of being light, it still faces many bottlenecks in actual application. Firstly, the modular connection mechanism is not designed well, resulting in low assembly efficiency and limited transportation volume. Secondly, the inflation interface lacks an effective protection mechanism and is easily damaged by impurities in a dusty and sewage environment. Thirdly, the structure layer has a single function and cannot meet multiple requirements such as puncture resistance, load stability and internal environment safety.
[0004] Therefore, the application provides an inflatable fire rescue support for quickly constructing an emergency passage to meet the needs. SUMMARY
[0005] The application aims to solve the problems in the background art and provides an inflatable fire rescue support for quickly constructing an emergency passage.
[0006] The application aims to solve the problems in the background art and provides an inflatable fire rescue support for quickly constructing an emergency passage.
[0007] To solve the above technical problems, the application provides the following technical scheme: an inflatable fire rescue support for quickly constructing an emergency passage, comprising a base, wherein the base is provided with a mounting and dismounting mechanism, the mounting and dismounting mechanism is provided with an inflatable frame, and the inflatable frame is provided with an inflation mechanism.
[0008] The mounting and dismounting mechanism comprises a positioning groove, a box body and a positioning block, the positioning groove is opened on the base, the box body is fixedly installed at one end of the base, the positioning block is inserted into the positioning groove, and the inflatable frame is fixedly installed on the positioning block.
[0009] The inflatable frame comprises a support body, an isolation layer, a reinforcing layer and a protection layer, the support body is fixedly installed on the positioning block, the isolation layer is fixed on the support body, the reinforcing layer is fixed on the isolation layer, and the protection layer is fixed on the reinforcing layer.
[0010] The inflating mechanism comprises an inflating nozzle, a mounting ring and a protective cover, the inflating nozzle is arranged on the support body, one end of the inflating nozzle penetrates through the protective layer, the mounting ring is fixedly arranged on the inflating nozzle, threads are arranged on the mounting ring, and the protective cover is threadedly connected to the mounting ring.
[0011] Preferably, anti-skid convex points are fixedly arranged on the base, a plurality of mounting blocks are arranged on the base, mounting through holes are arranged on the plurality of mounting blocks, and the mounting through holes are in the shape of cylindrical through holes.
[0012] Preferably, the positioning groove is in the shape of a square groove, the positioning block is in the shape of a square block, an insertion groove is arranged on the positioning block, and the insertion groove is in the shape of a cylindrical hole.
[0013] Preferably, the box body is in the shape of a cylindrical box, the box body is horizontally arranged, a limiting block is slidably arranged on the inner wall of the box body, a insertion rod is fixedly arranged on one side of the limiting block, one end of the insertion rod penetrates through the inner wall of the positioning groove, and the insertion rod is in the shape of a cylindrical rod.
[0014] Preferably, a pull rod is fixedly arranged on the other end of the limiting block, one end of the pull rod penetrates through the box body, a spring is fixedly arranged on the inner wall of the box body, the spring is arranged around the pull rod, and one end of the spring is fixedly connected with the limiting block.
[0015] Preferably, the isolation layer is made of a flame-retardant TPU film, the reinforcing layer is made of aramid, the protective layer is made of an ultra-high molecular weight polyethylene fiber woven cloth, and a reflective strip is fixedly arranged on the protective layer.
[0016] Preferably, a pull rope is fixedly arranged on the protective layer, a rotating disc is fixedly arranged on one end of the pull rope, and the rotating disc is rotatably connected with the protective cover.
[0017] Preferably, a receiving ring is fixedly arranged on the inflating nozzle, and a rubber sealing gasket is fixedly arranged on the receiving ring.
[0018] Compared with the prior art, the present application has at least the following beneficial effects:
[0019] In the above scheme, the quick mounting and dismounting mechanism is arranged, the quick mounting and dismounting function of the inflatable frame is realized, the portability and deployment efficiency of the inflatable fire rescue support are significantly improved, the rescue personnel can complete the assembly of the support in a short time without tools on the scene, the stability of the structural connection is ensured, the transportation burden is greatly reduced, and the whole set of equipment can quickly and dynamically respond to the rescue demand.
[0020] In the above scheme, the inflation mechanism is arranged to facilitate protection of the inflation nozzle, avoid dust and impurities from entering the inflation nozzle, and thus affect the inflation of the inflatable fire rescue support, the isolation layer, the reinforcing layer and the protective layer are arranged to resist sharp impact and wear; the reinforcing layer serves as a force-bearing framework to disperse stress; the isolation layer ensures air tightness and provides a fireproof and safe internal environment; the combination of the three achieves the unity of extreme protection, stable structure and life safety guarantee. BRIEF DESCRIPTION OF DRAWINGS
[0021] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable a person skilled in the relevant art to implement and use the present disclosure.
[0022] Figure 1 is a schematic diagram of the overall structure in the present application;
[0023] Figure 2 is a schematic diagram of the base in the present application;
[0024] Figure 3 is an enlarged schematic diagram of A in the present application;
[0025] Figure 4 is a schematic diagram of the insertion slot in the present application;
[0026] Figure 5 is a schematic diagram of the inflation mechanism in the present application;
[0027] Figure 6 is a schematic diagram of the inflation frame in the present application.
[0028] [Reference signs]
[0029] 1, base;
[0030] 2, installation and removal mechanism; 21, box body; 22, insertion slot; 23, spring; 24, pull rod; 25, positioning groove; 26, limiting block; 27, insertion rod; 28, positioning block;
[0031] 3, inflation frame; 31, frame body; 32, isolation layer; 33, reinforcing layer; 34, protective layer;
[0032] 4, inflation mechanism; 41, inflation nozzle; 42, rotating disc; 43, protective cover; 44, pull rope; 45, mounting ring; 46, rubber sealing gasket; 47, receiving ring;
[0033] 5, mounting block; 6, mounting through hole; 7, reflective strip; 8, anti-skid protrusions.
[0034] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application to the specific structures, devices and environments, and those skilled in the art can adjust or modify these devices and environments according to specific needs. DETAILED DESCRIPTION
[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0037] Please refer to Figures 1-6 An inflatable fire rescue support for quickly building an emergency passage, comprising a base 1, the base 1 is provided with a mounting and dismounting mechanism 2, by being provided with the mounting and dismounting mechanism 2, the inflatable frame 3 is convenient to mount and dismount, so as to facilitate carrying of the inflatable fire rescue support, the mounting and dismounting mechanism 2 is provided with the inflatable frame 3, the inflatable frame 3 is arranged to accommodate installation of the inflation mechanism 4, the inflatable frame 3 is provided with the inflation mechanism 4, by being provided with the inflation mechanism 4, the inflation nozzle 41 is protected, dust and impurities are prevented from entering the inflation nozzle 41, so as to affect inflation of the inflatable fire rescue support.
[0038] The base 1 is fixedly provided with anti-skid convex points 8, by being provided with the anti-skid convex points 8, the anti-skid performance of the base 1 is improved, the base 1 is provided with a plurality of mounting blocks 5, the mounting blocks 5 are arranged to accommodate installation of the mounting through holes 6, the mounting through holes 6 are arranged on the plurality of mounting blocks 5, the mounting through holes 6 are cylindrical through holes, and the mounting through holes 6 are arranged to cooperate with the insertion of the plug, so as to fix the base 1.
[0039] Please refer to Figures 1-6, the dismounting mechanism 2 includes a positioning groove 25, a box 21 and a positioning block 28, the positioning groove 25 is opened on the base 1, the positioning groove 25 is arranged for receiving the insertion of the positioning block 28, the box 21 is fixedly installed at one end of the base 1, the positioning block 28 is inserted into the positioning groove 25, by arranging the positioning block 28 and the positioning groove 25, the purpose of positioning and installing the inflatable frame 3 is achieved, and the inflatable frame 3 is fixedly installed on the positioning block 28.
[0040] The shape of the positioning groove 25 is a square groove, the positioning groove 25 is arranged for receiving the insertion of the positioning block 28, the positioning block 28 is a square block, and the positioning block 28 is provided with a slot 22, the slot 22 is arranged for receiving the insertion of the insertion rod 27, so as to achieve the purpose of fixing the positioning block 28 into the positioning groove 25, and the shape of the slot 22 is a cylindrical hole.
[0041] The shape of the box 21 is a cylindrical box, the box 21 is horizontally arranged, the box 21 is arranged for receiving the sliding of the limiting block 26, the limiting block 26 is slidably arranged on the inner wall of the box 21, the limiting block 26 is arranged for receiving the installation of the insertion rod 27, one side of the limiting block 26 is fixedly installed with the insertion rod 27, one end of the insertion rod 27 penetrates the inner wall of the positioning groove 25, the shape of the insertion rod 27 is a cylindrical rod, the insertion rod 27 is arranged for being inserted into the slot 22, so as to achieve the purpose of fixing the positioning block 28 into the positioning groove 25.
[0042] The other end of the limiting block 26 is fixedly installed with a pull rod 24, one end of the pull rod 24 penetrates the box 21, the pull rod 24 is arranged for pulling the limiting block 26 to slide linearly along the inner wall of the box 21, the inner wall of the box 21 is fixedly installed with a spring 23, the spring 23 is arranged around the pull rod 24, one end of the spring 23 is fixedly connected with the limiting block 26, the spring 23 is arranged for applying a force to the insertion rod 27, so that the insertion rod 27 is inserted into the slot 22, so as to achieve the purpose of fixing the positioning block 28 into the positioning groove 25.
[0043] Please refer to Figures 1-6The inflatable frame 3 comprises a frame body 31, an isolation layer 32, a reinforcing layer 33 and a protective layer 34, the frame body 31 is fixedly installed on the positioning block 28, the isolation layer 32 is fixed on the frame body 31, by being provided with the isolation layer 32, the isolation layer 32 is made of flame-retardant TPU film, the flame-retardant TPU film can lock air firmly by virtue of excellent air tightness and flexibility, and the frame can always keep a stable shape under complex pressure; meanwhile, the flame-retardant TPU film has the characteristics of flame retardation, non-toxicity and aging resistance, can effectively isolate external high temperature or harmful substances from invading, the reinforcing layer 33 is fixed on the isolation layer 32, by being provided with the reinforcing layer 33, the reinforcing layer 33 is made of aramid, the aramid can uniformly disperse and lock the internal pressure firmly after being inflated by virtue of its specific strength far exceeding that of steel, excellent tensile and tear resistance, form a strong hoop stress, thereby resisting sharp compression and uncertain impact of external debris; meanwhile, the excellent flexibility and fatigue resistance of aramid fabric enable the frame to be folded and unfolded in complex terrain and repeatedly used without permanent damage due to bending, the protective layer 34 is fixed on the reinforcing layer 33, by being provided with the protective layer 34, the protective layer 34 is made of ultra-high molecular weight polyethylene fiber woven cloth, the ultra-high molecular weight polyethylene fiber woven cloth has only two-thirds of the specific gravity of aramid, but has higher specific strength and modulus than high-quality steel, provides the frame with good cutting resistance, puncture resistance and wear resistance, can effectively resist repeated scratching and instantaneous impact of steel bars and gravel in the debris; meanwhile, its low moisture absorption, chemical corrosion resistance and excellent weather resistance ensure that the frame does not degrade in performance under harsh environments such as sewage, acid and alkali or long-term sunlight.
[0044] The isolation layer 32 is made of flame-retardant TPU film. The isolation layer 32 is made of flame-retardant TPU film. The flame-retardant TPU film has excellent air tightness and flexibility, and can lock air tightly to ensure that the support remains stable under complex pressure. At the same time, the flame-retardant TPU film has the characteristics of flame retardation, non-toxicity and aging resistance, and can effectively isolate external high temperature or harmful substances, and the reinforcing layer 33 is made of aramid. The reinforcing layer 33 is made of aramid. The aramid has a specific strength far exceeding that of steel, excellent tensile and tear resistance, and can evenly disperse the internal pressure after inflation and lock it tightly to form a strong ring stress, thereby resisting the sharp compression and uncertain impact of external debris. At the same time, the excellent flexibility and fatigue resistance of aramid fabric make the support foldable and reusable in complex terrain without permanent damage due to bending. The protective layer 34 is made of ultra-high molecular weight polyethylene fiber woven cloth. The protective layer 34 is made of ultra-high molecular weight polyethylene fiber woven cloth. The ultra-high molecular weight polyethylene fiber woven cloth has a specific gravity only two-thirds of aramid, but has a specific strength and modulus exceeding that of high-quality steel, providing good cutting, puncture and wear resistance for the entire support, and effectively resisting repeated scratching and instantaneous impact of steel bars and debris in the debris. At the same time, its low moisture absorption, chemical corrosion resistance and excellent weather resistance ensure that the support does not degrade in performance in sewage, acid or alkaline or long-term sunlight, and the reflective strip 7 is fixed on the protective layer 34. The reflective strip 7 is provided to increase the reflectivity of the inflatable fire rescue support.
[0045] Please refer to Figures 1-6 The inflation mechanism 4 includes an inflation nozzle 41, a mounting ring 45 and a protective cover 43. The inflation nozzle 41 is provided on the support body 31. The inflation nozzle 41 is provided for inflating the support body 31. One end of the inflation nozzle 41 penetrates the protective layer 34. The mounting ring 45 is fixedly installed on the inflation nozzle 41. The mounting ring 45 is provided with threads. The protective cover 43 is threadedly connected to the mounting ring 45. The mounting ring 45 with threads is provided for mounting the protective cover 43.
[0046] The protective layer 34 is fixedly installed with a pull rope 44. The pull rope 44 is provided for mounting the turntable 42. One end of the pull rope 44 is fixedly installed with the turntable 42. The turntable 42 is provided for mounting the protective cover 43. The turntable 42 is rotatably connected to the protective cover 43. The inflation nozzle 41 is fixedly installed with a receiving ring 47. The receiving ring 47 is fixedly installed with a rubber sealing gasket 46. The rubber sealing gasket 46 is provided to improve the sealing performance of the protective cover 43.
[0047] Working principle: In use, first pull the lever 24. The lever 24 will drive the limiting block 26 to slide along the inner wall of the box 21. When the limiting block 26 slides, it will squeeze the spring 23 and simultaneously drive the insertion rod 27 to move until the insertion rod 27 leaves the positioning groove 25. At this time, insert the positioning block 28 into the positioning groove 25 and release the lever 24. The insertion rod 27 will be inserted into the slot 22 under the action of the spring 23, thereby fixing the positioning block 28. Then repeat the above operation to fix one end of the inflation frame 3. After fixing, rotate the protective cover 43 to remove the protective cover 43 from the mounting ring 45. Then inflate the inflation nozzle 41 with the air pump until the inflation frame 3 is full. Then reinstall the protective cover 43 onto the mounting ring 45 to protect the inflation nozzle 41 and prevent dust and impurities from entering the inflation nozzle 41.
[0048] When the inflatable fire rescue support is not in use, the air can be released through the air inlet 41. After the air is released, the air inlet 41 is protected by the protective cover 43. Then, pull the lever 24 to release the fixation of the positioning block 28, thereby facilitating the separation between the base 1 and the inflatable frame 3 and making it easy to carry and transfer.
[0049] Furthermore, an isolation layer 32, made of flame-retardant TPU film, is incorporated. This flame-retardant TPU film, with its excellent airtightness and flexibility, firmly locks in air, ensuring the support maintains its stable shape under complex pressure. Simultaneously, the flame-retardant TPU film possesses flame-retardant, non-toxic, and aging-resistant properties, effectively isolating the support from external high temperatures or harmful substances. A reinforcing layer 33, made of aramid fiber, is also included. Aramid fiber, with its specific strength far exceeding that of steel and excellent tensile and tear resistance, can evenly distribute and firmly lock in internal pressure after inflation, forming strong circumferential stress to resist the sharp pressure and uncertain impacts of external rubble. At the same time, the excellent flexibility of aramid fabric... The toughness and fatigue resistance of the support structure allow it to be folded and unfolded repeatedly in complex terrain without permanent damage from bending. A protective layer 34, made of ultra-high molecular weight polyethylene (UHMWPE) fiber woven fabric, provides excellent resistance to cutting, puncture, and abrasion. This fabric, with a specific gravity only two-thirds that of aramid but possessing extremely high specific strength and modulus exceeding that of high-quality steel, effectively resists repeated scraping and instantaneous impacts from steel bars and rubble in rubble. Simultaneously, its molecular structure imparts extremely low moisture absorption, chemical corrosion resistance, and excellent weather resistance, ensuring that the support structure's performance does not degrade in harsh environments such as sewage, acids, alkalis, or prolonged exposure to sunlight.
[0050] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0051] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. An inflatable fire rescue support for rapidly constructing emergency access routes, characterized in that: Includes a base (1), on which a dismantling mechanism (2) is provided, on which an inflation frame (3) is provided, and on which an inflation mechanism (4) is provided; The installation and dismantling mechanism (2) includes a positioning groove (25), a housing (21) and a positioning block (28). The positioning groove (25) is opened on the base (1). The housing (21) is fixedly installed on one end of the base (1). The positioning block (28) is inserted into the positioning groove (25). The inflation frame (3) is fixedly installed on the positioning block (28). The inflatable frame (3) includes a frame body (31), an isolation layer (32), a reinforcing layer (33), and a protective layer (34). The frame body (31) is fixedly installed on the positioning block (28), the isolation layer (32) is fixed on the frame body (31), the reinforcing layer (33) is fixed on the isolation layer (32), and the protective layer (34) is fixed on the reinforcing layer (33). The inflation mechanism (4) includes an inflation nozzle (41), a mounting ring (45), and a protective cover (43). The inflation nozzle (41) is disposed on the bracket body (31), and one end of the inflation nozzle (41) penetrates the protective layer (34). The mounting ring (45) is fixedly installed on the inflation nozzle (41), and the mounting ring (45) is provided with threads. The protective cover (43) is threadedly connected to the mounting ring (45).
2. The inflatable fire rescue support for rapidly constructing emergency passages according to claim 1, characterized in that: The base (1) is fixedly installed with anti-slip protrusions (8), and the base (1) is provided with a plurality of mounting blocks (5). The plurality of mounting blocks (5) are provided with mounting through holes (6), and the mounting through holes (6) are cylindrical through holes.
3. The inflatable fire rescue support for rapidly constructing emergency passages according to claim 1, characterized in that: The positioning groove (25) is square in shape, the positioning block (28) is square in shape, and a slot (22) is provided on the positioning block (28). The slot (22) is cylindrical in shape.
4. The inflatable fire rescue support for rapidly constructing emergency passages according to claim 1, characterized in that: The box (21) is cylindrical in shape and is horizontally arranged. A limit block (26) is slidably arranged on the inner wall of the box (21). A plug rod (27) is fixedly installed on one side of the limit block (26). One end of the plug rod (27) penetrates the inner wall of the positioning groove (25). The plug rod (27) is cylindrical in shape.
5. An inflatable fire rescue support for rapidly constructing emergency passages according to claim 5, characterized in that: A pull rod (24) is fixedly installed at the other end of the limiting block (26). One end of the pull rod (24) passes through the box body (21). A spring (23) is fixedly installed on the inner wall of the box body (21). The spring (23) is wound around the pull rod (24). One end of the spring (23) is fixedly connected to the limiting block (26).
6. The inflatable fire rescue support for rapidly constructing emergency passages according to claim 1, characterized in that: The isolation layer (32) is made of flame-retardant TPU film, the reinforcing layer (33) is made of aramid fiber, the protective layer (34) is made of ultra-high molecular weight polyethylene fiber woven fabric, and a reflective strip (7) is fixed on the protective layer (34).
7. An inflatable fire rescue support for rapidly constructing emergency passages according to claim 1, characterized in that: A pull rope (44) is fixedly installed on the protective layer (34), and a turntable (42) is fixedly installed at one end of the pull rope (44). The turntable (42) is rotatably connected to the protective cover (43).
8. An inflatable fire rescue support for rapidly constructing emergency passages according to claim 1, characterized in that: A receiving ring (47) is fixedly installed on the inflation nozzle (41), and a rubber sealing gasket (46) is fixedly installed on the receiving ring (47).
9. The method of using an inflatable fire rescue support for rapidly constructing an emergency passage as described in claim 1 includes the following steps. Open the protective cover: Rotate the protective cover (43) which is rotatably connected to the turntable (42). Since the protective cover (43) is threadedly connected to the mounting ring (45) fixed on the inflation nozzle (41), the protective cover (43) can be removed from the inflation nozzle (41) by rotating it. Connect the inflation device: Connect the appropriate inflation device (such as an air pump) to the inflation nozzle (41) to ensure a tight connection and prevent air leakage. At the same time, check whether the rubber sealing gasket (46) on the receiving ring (47) fixedly installed on the inflation nozzle (41) is intact to ensure sealing. Inflation begins: Start the inflation equipment and inflate the support body (31) of the inflation frame (3). As gas is continuously added, the support body (31) gradually expands, and the isolation layer (32), reinforcement layer (33), and protective layer (34) also unfold and tighten, forming an emergency channel structure with a certain strength and stability. During the inflation process, closely observe the expansion of the inflation frame (3) to ensure uniform inflation and avoid local over-inflation or under-inflation. Inflation completion check: Once the inflation reaches the appropriate level, stop the inflation equipment and disconnect it from the inflation nozzle (41). Check again whether each part of the inflation frame (3) is fully inflated and without any air leakage, and whether the overall structure is stable and the shape meets the requirements of the emergency passage.