A double-l wing conversion pre-connected air film emergency building and its deployment method

Abstract

A double-L wing conversion type pre-connected air film emergency building and its unfolding method belong to the technical field of deployable buildings, box module buildings, inflatable membrane structures and emergency construction. The invention comprises a bearing main body, the left and right sides of the bearing main body are connected with a left rigid L-shaped conversion wing and a right rigid L-shaped conversion wing through a main hinge assembly, the left rigid L-shaped conversion wing and the right rigid L-shaped conversion wing are the same in structure, both have a first plate and a second plate, the first plate and the second plate are fixedly connected through an angle force-bearing frame and keep an L-shaped structure, and the left rigid L-shaped conversion wing and the right rigid L-shaped conversion wing rotate around the main hinge assembly between a closed position and an unfolded position. The invention can make the same group of rigid plates complete functional conversion between the transportation state and the use state, and separate the eave edge beam to pull the pre-connected inflatable roof of the factory to unfold, so as to reduce the on-site scattered parts, positioning connection and high hanging process.

Description

Technical Field

[0001] This invention belongs to the field of deployable buildings, modular box buildings, inflatable membrane structures and emergency construction technology, and specifically relates to a double L-wing convertible pre-connected inflatable membrane emergency building and its deployment method. Background Technology

[0002] Existing emergency buildings mainly include tent-type buildings, inflatable buildings, modular box-type buildings, and foldable expandable containers. Tents or inflatable buildings are easy to transport in compression, but are limited in terms of rigid ground, enclosure insulation, and equipment integration; modular box-type buildings can be quickly installed, but their usable area is limited by the transport outline.

[0003] Some expandable enclosures create usable space by rotating the floor, walls, and roof separately. On-site installation of supports, latches, or additional enclosure components is still required, resulting in numerous movements and connection points. When rigid enclosures are combined with inflatable roofs, the roof is often transported and attached separately as an independent accessory, which can easily lead to problems such as high-altitude connections, air leaks at joints, and uncertain storage paths for membrane materials.

[0004] Furthermore, existing solutions typically only allow for overall closure or deployment, making it difficult to implement in phases based on initial usable area, site conditions, and energy supply. Simply cutting the entire length of the structure into sections without providing independent locking, support, end enclosures, roofs, and gas supply branches for each section also fails to create independently usable segmented buildings. Therefore, an emergency building with clearly defined component conversion relationships, pre-connected roofs, the ability to deploy in sections, and the capacity for reverse retraction is needed. Summary of the Invention

[0005] This invention addresses the aforementioned problems and overcomes the shortcomings of existing technologies by providing a double-L-wing convertible pre-connected air-supported membrane emergency building and its deployment method. This invention enables the same set of rigid panels to complete functional conversion between transportation and use states, and deploys the factory-pre-connected inflatable roof by separating and pulling the eaves side beams, thereby reducing on-site disassembly, positioning and connection, and high-altitude hanging processes. At the same time, the conversion area is divided into conversion sections along the length of the building that can be independently locked, inflated, and used, so as to achieve initial use and subsequent expansion.

[0006] To achieve the above objectives, the present invention adopts the following technical solution.

[0007] This invention provides a double L-wing convertible pre-connected air-supported membrane emergency building, characterized by comprising a supporting main body, with a left rigid L-shaped convertible wing and a right rigid L-shaped convertible wing respectively connected to the left and right sides of the supporting main body via a main hinge assembly. The left and right rigid L-shaped convertible wings have identical structures, each having a first plate and a second plate. The first and second plates are fixedly connected by a corner load-bearing frame to maintain an L-shaped structure. The left and right rigid L-shaped convertible wings rotate around the main hinge assembly between a closed position and an extended position. In the closed position, the first plate forms a transport side wall, and the second plate forms a half-roof. In the extended position, the first plate transforms into an extended floor, and the second plate transforms into an outer low wall. The longitudinal edge of the second plate of the left rigid L-shaped convertible wing away from the corner load-bearing frame and the second plate of the right rigid L-shaped convertible wing... Eaves edge beams are fixedly installed on the longitudinal edges away from the corner load-bearing frame. In the closed position, the two eaves edge beams are adjacent at the top center seam. In the unfolded position, the two eaves edge beams separate from each other and become the eaves load-bearing boundary. The longitudinal anchoring edge of the flexible inflatable roof assembly is fixedly connected to the eaves edge beam. The flexible inflatable roof assembly includes multiple air ribs that span the two eaves edge beams laterally and air cushions disposed between adjacent air ribs. The air ribs and air cushions respectively form airtight cavities that can be isolated. The ends of the air ribs are fixedly connected to the eaves edge beams through reinforcing sections and rounded corner support seats. In the closed position, the flexible inflatable roof assembly is folded and stored in the roof storage part. The air ribs and air cushions are respectively connected to the inflation control assembly through air supply branches. The load-bearing body, the left rigid L-shaped conversion wing, the right rigid L-shaped conversion wing, and the flexible inflatable roof assembly are also provided with external protection and drainage components.

[0008] Furthermore, both the left rigid L-shaped conversion wing and the right rigid L-shaped conversion wing are provided with limiting components, adjustable legs, and gap covers. In the unfolded position, the limiting components abut against the load-bearing body to limit the maximum rotation angle of the left rigid L-shaped conversion wing and the right rigid L-shaped conversion wing. The adjustable legs are supported on the ground. The gap covers cover the gap between the first plate and the fixed floor of the load-bearing body, and are respectively connected to the load-bearing body and the external anchoring foundation.

[0009] Furthermore, both the first plate of the left rigid L-shaped conversion wing and the first plate of the right rigid L-shaped conversion wing are provided with floor beams, and both the second plate of the left rigid L-shaped conversion wing and the second plate of the right rigid L-shaped conversion wing are provided with low wall vertical frames. The edge of the air rib is connected to the eaves side beam through a flexible connecting seat, and the force is transmitted to the low wall vertical frame through the eaves side beam. An independent drainage ditch is fixedly provided on the outdoor side of the eaves side beam.

[0010] Furthermore, the supporting body is divided into a first transition segment and a second transition segment along its length. A segmented interface fixing frame is provided between the first transition segment and the second transition segment. The first transition segment is provided with the left rigid L-shaped transition wing, the right rigid L-shaped transition wing, the corresponding main hinge assembly, transport lock, limiting component, support component, and independent air supply branch. The first transition segment corresponds to a first roof module. The second transition segment is provided with the left rigid L-shaped transition wing, the right rigid L-shaped transition wing, the corresponding main hinge assembly, transport lock, limiting component, support component, and independent air supply branch. The second transition segment corresponds to a second roof module. The first roof module and the second roof module are connected by a non-pressure-bearing flexible transition strip.

[0011] Furthermore, the airtight cavity of the first roof module is not connected to the airtight cavity of the second roof module, the independent air supply branch of the first conversion section is independent of the independent air supply branch of the second conversion section, the limiting member and the supporting member of the first conversion section lock the first conversion section and the load-bearing body and support them on the ground, and the first conversion section independently forms a mechanically stable boundary when the second conversion section maintains transport closure.

[0012] Furthermore, the inflation control component includes an air source, a main valve group, a controller, and a power supply. The air source, the main valve group, the controller, and the power supply are located in a non-rotational position near the fixed base frame, fixed end frame, or segment interface fixed frame of the supporting body. The air supply branch includes an air rib air supply branch and an air cushion air supply branch. An isolation valve, a check valve, and a mechanical pressure relief valve are provided on the air rib air supply branch, and an isolation valve, a check valve, and a mechanical pressure relief valve are provided on the air cushion air supply branch.

[0013] The present invention also provides a method for deploying a double-L-wing convertible pre-connected air-supported membrane emergency building, using the double-L-wing convertible pre-connected air-supported membrane emergency building as described in any one of claims 1 to 7, characterized by comprising the following steps: S1: Position the emergency building in its container transport state, level and pre-anchor the fixed base of the main support, and check the left and right sweep range, top clearance, and the condition of the roof, pipelines and drainage components. S2: Select the full deployment or segmented deployment mode as needed, release the transport lock of the selected conversion segment, and at the same time maintain the pre-connection between the longitudinal anchoring edge of the flexible inflatable roof assembly and the two eaves edge beams. S3: Controlled outward rotation of the left and right rigid L-shaped transition wings of the selected transition section, the first plate is converted from the transport side wall to the extended floor, the second plate is converted from the half-width top plate to the outer low wall, and the flexible inflatable roof assembly is released by the separation and pulling of the two said eaves side beams. S4: When the first plate is close to horizontal, the adjustable leg enters the support. After the left rigid L-shaped conversion wing and the right rigid L-shaped conversion wing reach the final position, they engage the limiting component and complete the necessary anchoring, end protection, floor cross joint and drainage checks. S5: After confirming that the limiting component, the adjustable leg, the anchoring and the air circuit status meet the permission conditions, first pre-charge the air rib with a low flow rate to form a stable arched frame, and then inflate the air cushion. S6: Check the pressure of each air chamber, roof shape, mechanical locking, floor joints, end enclosures and drainage system, and put it into use after meeting the usage conditions; S7: When it is necessary to expand the space, maintain the air isolation and working status of the roof module that has been put into use, and unfold, lock and inflate the next conversion section in the above order; S8: During recovery, the air cushion is deflated, the air rib is deflated, the flexible inflatable roof assembly is folded in a controlled manner, the external anchors and the limiting components are released, the adjustable legs are retracted, and the left rigid L-shaped conversion wing and the right rigid L-shaped conversion wing are closed, so that the building returns to its box-type transport outline.

[0014] The beneficial effects of the present invention.

[0015] This invention achieves simultaneous formation of the extended floor, outer low wall, and eaves boundary through a single L-wing rotation, reducing the need for independent rotating components and on-site alignment. The inflatable roof is pre-connected in the factory, and the roof deployment is completed by separating the two eaves side beams, which helps reduce high-altitude attachments and on-site air circuit reconnection. Mechanical locking, support, and anchoring are performed first, followed by sequential inflation of the air ribs and air cushions, forming a clear rigid-flexible coordinated deployment sequence. Each conversion section can be independently locked, sealed, inflated, and put into use, allowing for phased deployment and continued expansion based on the rescue area, site, and power supply conditions. The dual-state side beams simultaneously serve as the transport seam, roof storage boundary, and deployed eaves load-bearing function. Independent drainage ditches facilitate maintenance and prevent mixing with the main load-bearing structure. In transport mode, the drainage ditches can also serve as rainproof shelters for the top seam. The roof, pipelines, drive system, and conversion components reside in the same box-type module and can be retracted in reverse order, facilitating repeated deployment and reuse. Attached Figure Description

[0016] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0017] Figure 1 This is an overall isometric view of the present invention in the transportation state.

[0018] Figure 2 This is a diagram showing the unfolding process of the first 3 meters of the present invention.

[0019] Figure 3 This is a diagram showing the front 3m L wings of the present invention fully deployed and the air ribs inflated.

[0020] Figure 4 This is a diagram showing the front 3m L wings of the present invention fully deployed and the air ribs and air cushions fully inflated.

[0021] Figure 5 This is a diagram of the deployment process of the rear 3m L-wing of the present invention.

[0022] Figure 6 This is an isometric view of the overall usage state of the present invention.

[0023] Figure 7 This is a transverse isometric view of the present invention.

[0024] Figure 8 This is a state diagram of the turning point when the present invention is being folded up during transportation.

[0025] Figure 9 This is a diagram showing the state of the turning point after the invention is deployed on-site.

[0026] Figure 10 This is a diagram showing the front and rear sections of the roof inflatable partition of the present invention.

[0027] Figure 11 This is a diagram showing the partitioning of the container before and after the transportation stage of this invention.

[0028] Figure 12 This is an isometric view of the transportation stage in an embodiment of the present invention.

[0029] Figure 13 This is an isometric view of the usage stage in an embodiment of the present invention.

[0030] Figure 14 This is a front elevation view of an embodiment of the present invention.

[0031] Figure 15 This is a flowchart of the box unfolding steps of the present invention.

[0032] The markings in the diagram are as follows: 1 is the main load-bearing structure, 11 is the fixed base frame, 13 is the first transition section, 14 is the second transition section, 15 is the segment interface fixing frame, 2 is the left rigid L-shaped transition wing, 21 is the first plate, 211 is the floor beam, 22 is the second plate, 221 is the low wall vertical frame, 23 is the corner load-bearing frame, 24 is the main hinge assembly, 3 is the eaves edge beam, 4 is the flexible inflatable roof assembly, 7 is the right rigid L-shaped transition wing, 8 is the first roof module, 9 is the second roof module, 41 is the air rib, 42 is the air cushion, 6 is the external enclosure and drainage assembly and independent drainage ditch, 26 is the limiting component, 27 is the adjustable support leg, and 28 is the gap cover plate. Detailed Implementation

[0033] As shown in the accompanying drawings, this embodiment provides a double-L-wing convertible pre-connected air-supported membrane emergency building and its deployment method. In a specific implementation of the double-L-wing convertible pre-connected air-supported membrane emergency building, the building length direction is denoted as the X direction, the left and right deployment direction as the Y direction, and the vertical direction as the Z direction. The transport state refers to the state where the left rigid L-shaped convertible wing 2 and the right rigid L-shaped convertible wing 7 are closed to form a box-like outer shape, and the roof is deflated and stored. The mechanical locking state refers to the state where the convertible wings reach their final positions and are formed by mechanical locks, outriggers, and necessary anchoring to create a stable boundary. The usage state refers to the state where the air ribs and air cushions are fully inflated and have passed a safety inspection. Segmented deployment means that at least two conversion segments each have independent convertible wings, final locks, supports, enclosures, roof modules, and air supply branches; the first segment can be used independently when the second segment is closed.

[0034] The load-bearing main body 1 can adopt a steel frame structure, with its fixed base 11 being a rectangular chassis used to bear the overall load of the building and transfer the load to the ground. Leveling devices and pre-anchoring interfaces are provided at the four corners of the fixed base 11. The main hinge assembly 24 is located on the left and right longitudinal edges of the load-bearing main body 1, with its hinge axis extending along the length of the building. The main hinge assembly 24 can be a heavy-duty hinge or a pivot structure, and lubrication and sealing structures are provided at the hinge axis.

[0035] The left rigid L-shaped conversion wing 2 and the right rigid L-shaped conversion wing 7 adopt a steel or aluminum alloy frame covered with sandwich panels. The first plate 21 and the second plate 22 of the left rigid L-shaped conversion wing 2 and the right rigid L-shaped conversion wing 7 intersect perpendicularly at the corner load-bearing frame 23 and are welded or bolted together. The corner load-bearing frame 23 is a box-shaped cross-section member, and stiffening ribs can be set inside to enhance bending and torsional resistance. The main hinge assembly 24 is connected to the inner longitudinal edge of the first plate 21, allowing the entire L-shaped conversion wing to rotate around the hinge axis. When the conversion wing is in the closed position, the first plate 21 is vertically set, forming the side wall of the box, and the second plate 22 is horizontally set, forming the top plate of the box. When the conversion wing is in the extended position, the first plate 21 is horizontally set, forming the extended floor, and the second plate 22 is vertically set, forming the outer low wall.

[0036] The outer longitudinal edge of the first plate 21 serves as the outer edge of the floor in the unfolded position, where a sealing strip and anti-slip structure are installed. Both the first plate 21 of the left rigid L-shaped transition wing 2 and the first plate 21 of the right rigid L-shaped transition wing 7 are equipped with floor beams 211, and both the second plate 22 of the left rigid L-shaped transition wing 2 and the second plate 22 of the right rigid L-shaped transition wing 7 are equipped with low wall vertical frames 221. An eaves beam 3 is fixedly installed at the longitudinal edge of the corner load-bearing frame 23 of the second plate 22. The eaves beam 3 is a continuous rigid beam, which can be a closed box or I-shaped section. In the transport state, the two eaves beams 3 are positioned opposite each other along the top center seam, with a sealing strip or waterproof cover plate between them. In the unfolded state, the two eaves beams 3 move away from each other as the transition wings rotate, located at the top edges of the left and right sides of the building, serving as the load-bearing boundaries of the roof.

[0037] The flexible inflatable roof component 4 is fixedly connected to the eaves beam 3 during factory assembly. Its longitudinal anchoring edges are fixed to the upper or inner surface of the eaves beam 3 via continuous pressure strips or grooves. When deflated, the air ribs 41 and air cushions 42 are folded into a stacked shape according to preset creases and are held in the folded state by tie-type folding restraints. The tie-type folding restraints can be tearable straps or release buckles, which are released segment by segment in a predetermined order to prevent the roof from unraveling or tangling during unfolding.

[0038] Air ribs 41 are arched inflatable ribs that span two eaves side beams 3 laterally along the building. Multiple air ribs 41 are arranged at intervals along the length of the building. The cross-section of the air ribs 41 can be circular, elliptical, or D-shaped, and its membrane material can be a high-strength coated fabric. The ends of the air ribs 41 are fixedly connected to the eaves side beams 3 via reinforcing sections and rounded corner supports. The edges of the air ribs 41 are connected to the eaves side beams 3 via flexible connecting seats, and the force is transferred to the low wall vertical frame 221 through the eaves side beams 3. The internal pressure force of the air ribs 41 and the external load are transferred to the ground through the eaves side beams 3, and then through the second plate 22, the corner load-bearing frame 23, and the first plate 21.

[0039] Air cushions 42 are installed between adjacent air ribs 41. The air cushions 42 are also inflatable membrane structures, and their edges are sealed to the outer surface of the air ribs 41 to form a continuous airtight roof. The inflation pressure of the air cushions 42 is slightly lower than that of the air ribs 41, so that they are tensioned between the main frame formed by the air ribs 41 to form a continuous roof.

[0040] An independent drainage ditch 6 is installed on the outdoor side of the eaves edge beam 3. Drainage ditches 6 are installed on the sides of both eaves edge beams 3 to drain rainwater from the roof. The drainage ditch 6 can be a U-shaped or trapezoidal metal channel with a longitudinal slope of approximately 0.5% to 1.0% along the length of the building, and a drain outlet is installed at each end. The drainage ditch 6 is installed independently from the eaves edge beam 3, separating the roof rainwater load and structural force transmission path, facilitating inspection and maintenance.

[0041] Limiting members 26 are provided on both the left rigid L-shaped conversion wing 2 and the right rigid L-shaped conversion wing 7 to lock the conversion wings in the deployed position. The limiting members 26 are located at the inner edge of the first plate 21, and the corresponding bearing surface is located on the load-bearing body 1. The main hinge assembly 24 is used for rotation, the limiting members 26 are used to limit the maximum rotation angle of the L-wing plate, the adjustable outriggers 27 are used for bearing pressure and leveling, and the gap cover plate 28 is used for anti-slip and anti-pull-out. When the conversion wing is close to horizontal, the limiting members 26 bear the positive reaction force, restricting the conversion wing from continuing to rotate downward and fixing its maximum angle. The gap cover plate 28 covers the gap between the first plate 21 and the fixed floor of the load-bearing body 1, and is connected to the load-bearing body 1 and the external anchor foundation respectively, transmitting the wind suction, slippage and overall overturning action to the ground anchor, ballast or load-bearing chassis through the limiting members 26 and the gap cover plate 28.

[0042] Adjustable outriggers 27 are located on the outer edge of the first plate 21 or the bottom of the second plate 22 of the left rigid L-shaped conversion wing 2 and the right rigid L-shaped conversion wing 7. The adjustable outriggers 27 are either spiral lifting or hydraulically telescopic outriggers, with support pads at their bottoms to transfer the load to the ground and adjust the level. After transportation to the designated location, the structure is leveled by adjusting the adjustable outriggers 27. Once the stability of the main structure is confirmed, the air ribs 41 and air cushions 42 are deployed and inflated sequentially.

[0043] The inflation control assembly includes an air source, a main valve assembly, a controller, and a power supply. The air source can be an electric air compressor or a high-pressure gas cylinder assembly. The main valve assembly includes a main valve, a pressure reducing valve, a filter, and a distribution valve block. The controller is a programmable logic controller or an embedded control board, used to control the inflation sequence and pressure. The power supply can be a battery pack or an external power source. All of the above equipment is centrally located in the end equipment box of the fixed base frame 11 of the supporting body 1, or near the fixed end frame, or in a non-rotating position near the segment interface fixed frame 15, ensuring the equipment remains fixed during the rotation of the conversion wing and preventing the moving parts from bearing additional loads.

[0044] The gas supply branches include air rib supply branches and air cushion supply branches. The air rib supply branch originates from the main valve assembly, runs along the fixed base frame 11, forms an S-shaped or Ω-shaped flexible service bridge near the main hinge assembly 24, and then connects to the inflation port of the air rib 41. The air cushion supply branch also originates from the main valve assembly, connects to the inflation port of the air cushion 42 via the flexible service bridge. Each gas supply branch is equipped with an isolation valve, a check valve, and a mechanical pressure relief valve. The isolation valve is used to cut off or open the airflow of the corresponding branch, the check valve prevents gas backflow, and the mechanical pressure relief valve automatically opens to release pressure when the pressure exceeds a set value; this protection function is not dependent on software control. Pressure detection sensors are installed on the side of each air chamber to monitor the internal pressure of the air rib 41 and air cushion 42 in real time.

[0045] The supporting body 1 is divided into a first transition section 13 and a second transition section 14 along its length. This embodiment uses two transition sections as an example, but the invention is not limited to this and more transition sections can be provided as needed. A segmented interface fixing frame 15 is located between the first transition section 13 and the second transition section 14. It is a vertical frame structure fixed to the supporting body 1 and does not rotate with either transition wing. The segmented interface fixing frame 15 can be a steel portal frame, and an isolation door or passageway can be installed inside it.

[0046] The first transition section 13 and the second transition section 14 are each independently equipped with complete functional components. Each transition section includes a left rigid L-shaped transition wing 2, a right rigid L-shaped transition wing 7, a corresponding main hinge assembly 24, a transport lock, a limiting component 26, a supporting component, and an independent air supply branch. Each transition section corresponds to an independent first roof module 8 or second roof module 9. The first roof module 8 and the second roof module 9 are structurally independent, their airtight cavities are not interconnected, and their respective air supply branches are independent, allowing for separate inflation and deflation operations. The two roof sections are connected by a non-pressure-bearing flexible transition strip, which only serves as a rainproof seal and does not transmit structural forces. Thus, the first transition section 13 can independently unfold, lock, inflate, and be put into use while the second transition section 14 remains in the transport closed state.

[0047] The external enclosure and drainage components 6 include side wall panels, end enclosure structures, floor joint covers, drainage ditches, and downpipes. Side wall panels can be installed on the outer surface of the second panel 22, or foldable guardrails or kickboards can be installed on the outer edge of the first panel 21. The end enclosure structures include foldable or pluggable end wall panels for closing openings at both ends of the building. Floor joint covers are installed at the gap between the first panel 21 and the fixed floor of the supporting structure 1 to cover the gap, prevent debris from falling in, and facilitate passage.

[0048] The present invention will be further illustrated by a specific embodiment below. Example

[0049] This embodiment uses an approximately 20-foot-class container transport outline, with an example length of approximately 6058 mm, a transport width of approximately 2438 mm, and a transport height of approximately 2591 mm. These dimensions are only for establishing a transportable conceptual prototype outline and do not indicate that the building has obtained ISO container or CSC transport certifications. The central fixed base frame, front and rear short-end interface frames, and shallow fixed equipment core remain stationary.

[0050] In an initial geometric calculation, the effective distance from the main hinge axis to the corner load-bearing node is approximately 2591 mm, and the effective distance from the corner load-bearing node to the original top center seam connection center is approximately 1219 mm. The theoretical total unfolded width is approximately 2438 + 2 × 2591 = 7620 mm, and the unfolded low wall structure height is approximately 1219 mm. During the design phase, the actual hinge axis center, plate thickness, sealing compression, and final clearance in the 3D model should be used for correction, and the sweep envelope of the entire rotation process should be checked.

[0051] The first plate 21 and the second plate 22 are sandwich panel modules with metal perimeter frames. As the starting point of the full-scale node prototype, the corner load-bearing frame 23 has an outer contour of approximately 140mm × 120mm and a wall thickness of approximately 6mm; the low wall vertical frame 221 can be made of rectangular steel pipe of approximately 120mm × 80mm × 5mm; the floor beam 211 can be made of rectangular steel pipe of approximately 140mm × 80mm × 5mm, and a diaphragm is set at the concentrated force position. The final cross-section is determined according to the load, deflection, transportation vibration, node bearing pressure and cyclic fatigue.

[0052] The two eaves edge beams 3 are embedded in the top edge of the low wall. Initially, they can be closed box beams with a cross-section of approximately 200mm × 150mm × 6mm, and horizontal diaphragms are set at the positions of the air ribs and main vertical frames. Their top surface is not higher than the top edge of the main structure of the low wall, and no additional continuous heightening plates or folded eaves columns are set.

[0053] In this embodiment, three main air ribs 41 are arranged along the X direction, and air cushions 42 are arranged between adjacent air ribs 41, forming three air rib air chambers and two air cushion air chambers. The outer diameter of the air ribs 41 can be initially modeled as approximately 300mm to 350mm; the dimensions of the air cushions 42, the prestress of the membrane surface, and the working air pressure are determined based on the membrane material properties, the effects of wind, rain, and snow, and deformation control.

[0054] Independent drainage ditches 6 are installed on the left and right eaves. The initial modeling values ​​can be U-shaped or trapezoidal ditches with a net opening of 150mm to 180mm and an effective depth of about 100mm; the initial thickness of the aluminum plate is about 2.0mm, and the initial thickness of the 304 stainless steel plate is about 1.0mm to 1.2mm. The drainage ditches are equipped with a longitudinal slope of about 0.5% to 1.0%, end drain outlets, and independent overflow outlets. The final dimensions are determined according to the catchment area, rainfall intensity, blockage, and leveling error.

[0055] The heavy-duty air pump, power supply, main valve assembly, and controller are housed in the equipment box at the end of the fixed base frame or within the core of the short-end shallow equipment; only the light-duty valve box, maintenance interface, and status display are located inside the low wall. The equipment is not moved by personnel during transportation, deployment, and use, and the main air lines and main cables are not reconnected individually on-site.

[0056] The factory completed the assembly of the fixed base frame, conversion wing, main hinge, final lock, transport lock, roof double-sided pre-connection, air circuit, cable, folding restraints and protective bag, and conducted full-stroke deployment, graded inflation and deflation and reverse storage tests.

[0057] The on-site deployment and recovery operation in this embodiment is carried out according to the following steps: S1: The module is placed in the designated site. Check the site's bearing capacity, drainage slope, left and right sweeping range, and top clearance. Complete the leveling and pre-anchoring of the fixed base frame 11.

[0058] S2: Select the full unfolding or segment unfolding mode as needed, release the transport lock of the selected conversion segment, and maintain the pre-connection between the end edges of the roof 4 and the two eaves edge beams 3.

[0059] S3: By deploying the actuator, the left rigid L-shaped conversion wing 2 and the right rigid L-shaped conversion wing 7 are controlled to rotate outward synchronously or alternately in small steps. The first plate 21 is converted from the transport side wall to the extended floor, and the second plate 22 is converted from the half-width top plate to the outer low wall. At the same time, the two eaves side beams 3 are separated from each other and pull the flexible inflatable roof assembly 4 to release along the predetermined fold line. The tethered folding restraint is released segment by segment according to the predetermined section.

[0060] S4: When the first plate is close to horizontal, the adjustable support leg 27 enters the support. After the left rigid L-shaped conversion wing 2 and the right rigid L-shaped conversion wing 7 reach the final deployment position, they engage with the limiting component 26. The limiting component 26 abuts against the bearing body 1 to bear the positive reaction force and fix the maximum angle. At the same time, the anti-slip and anti-pull anchoring is completed through the gap cover plate 28, and the end protection, floor gap cover plate and drainage inspection are completed.

[0061] S5: After confirming that the limiting component 26, adjustable support leg 27, anchoring and air circuit status meet the permission conditions, the air rib 41 is pre-inflated with a low flow rate through the inflation control component to form a stable arched frame. After the air rib reaches the set pressure, the air pillow 42 is inflated to form a continuous enclosure roof.

[0062] S6: Check the pressure maintenance, roof shape, mechanical locking, floor joints, end cladding and drainage system of the five air chambers (three air rib air chambers and two air cushion air chambers), and put them into use after they meet the usage conditions.

[0063] S7: When space needs to be expanded, maintain the air path isolation and working status of the roof module that has been put into use, and unfold, lock and inflate the next conversion section in the above order.

[0064] S8: During recovery, the air cushion 42 and air rib 41 are deflated in sequence, the flexible inflatable roof assembly 4 is folded in a controlled manner, the external anchoring and limiting components 26 are released, the adjustable legs 27 are retracted and the left rigid L-shaped conversion wing 2 and the right rigid L-shaped conversion wing 7 are closed. After each section is recovered, it is confirmed that the limiting components 26 and the adjustable legs 27 have been fully reset before proceeding to the next section of recovery, so that the building is restored to its box-type transport outline.

[0065] It is understood that the above specific description of the present invention is only for illustrating the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of the present invention.

Claims

1. A double-L-wing convertible pre-connected air-supported membrane emergency building, characterized in that, The system includes a load-bearing body (1), on which a left rigid L-shaped conversion wing (2) and a right rigid L-shaped conversion wing (7) are connected to the left and right sides respectively via a main hinge assembly (24). The left rigid L-shaped conversion wing (2) and the right rigid L-shaped conversion wing (7) have the same structure, each having a first plate (21) and a second plate (22). The first plate (21) and the second plate (22) are fixedly connected by a corner load-bearing frame (23) and maintain an L-shaped structure. The L-shaped conversion wing (7) rotates about the main hinge assembly (24) between a closed position and an extended position. In the closed position, the first plate (21) forms a transport side wall, and the second plate (22) forms a half-width top plate. In the extended position, the first plate (21) transforms into an extended floor, and the second plate (22) transforms into an outer low wall. The longitudinal edge of the second plate (22) of the left rigid L-shaped conversion wing (2) away from the corner load-bearing frame (23) and the first plate (22) of the right rigid L-shaped conversion wing (7) are located at the longitudinal edge of the second plate (22) away from the corner load-bearing frame (23). Both of the longitudinal edges of the two plates (22) away from the corner load-bearing frame (23) are fixedly provided with eaves edge beams (3). In the closed position, the two eaves edge beams (3) are adjacent at the top center seam. In the unfolded position, the two eaves edge beams (3) are separated from each other and transformed into eaves load-bearing boundaries. The longitudinal anchoring edge of the flexible inflatable roof assembly (4) is fixedly connected to the eaves edge beams (3). The flexible inflatable roof assembly (4) includes multiple air ribs (41) that cross the two eaves edge beams (3) laterally and are provided on adjacent air ribs. Air cushions (42) between ribs (41), the air ribs (41) and the air cushions (42) respectively form airtight cavities that can be isolated. The ends of the air ribs (41) are fixedly connected to the eaves side beams (3) through reinforcing sections and rounded corner support seats. The air ribs (41) and the air cushions (42) are respectively connected to an inflation control assembly through an air supply branch. The load-bearing body (1), the left rigid L-shaped conversion wing (2), the right rigid L-shaped conversion wing (7) and the flexible inflatable roof assembly (4) are also provided with external enclosure and drainage components (6).

2. The double-L-wing convertible pre-connected air-supported membrane emergency building according to claim 1, characterized in that, Both the left rigid L-shaped conversion wing (2) and the right rigid L-shaped conversion wing (7) are provided with a limiting member (26), an adjustable leg (27) and a gap cover (28). In the unfolded position, the limiting member (26) abuts against the bearing body (1) to limit the maximum rotation angle of the left rigid L-shaped conversion wing (2) and the right rigid L-shaped conversion wing (7). The adjustable leg (27) is supported on the ground. The gap cover (28) covers the gap between the first plate (21) and the fixed floor of the bearing body (1) and is connected to the bearing body (1) and the external anchoring foundation respectively.

3. The double-L-wing convertible pre-connected air-supported membrane emergency building according to claim 1, characterized in that, The first plate (21) of the left rigid L-shaped conversion wing (2) and the first plate (21) of the right rigid L-shaped conversion wing (7) are both provided with floor beams (211). The second plate (22) of the left rigid L-shaped conversion wing (2) and the second plate (22) of the right rigid L-shaped conversion wing (7) are both provided with low wall vertical frames (221). The edge of the air rib (41) is connected to the eaves side beam (3) through a flexible connecting seat. The force is transmitted to the low wall vertical frame (221) through the eaves side beam (3). An independent drainage ditch (6) is fixedly provided on the outdoor side of the eaves side beam (3).

4. The double-L-wing convertible pre-connected air-supported membrane emergency building according to claim 1, characterized in that, The supporting body (1) is divided into a first transition section (13) and a second transition section (14) along its length. A segment interface fixing frame (15) is provided between the first transition section (13) and the second transition section (14). The first transition section (13) is provided with the left rigid L-shaped transition wing (2), the right rigid L-shaped transition wing (7), the corresponding main hinge assembly (24), transport lock, limiting member (26), support member and independent air supply branch. The first transition section (13) is provided with a first roof module (8). The second transition section (14) is provided with the left rigid L-shaped transition wing (2), the right rigid L-shaped transition wing (7), the corresponding main hinge assembly (24), transport lock, limiting member (26), support member and independent air supply branch. The second transition section (14) is provided with a second roof module (9). The first roof module (8) and the second roof module (9) are connected by a non-pressure flexible transition strip.

5. A double-L-wing convertible pre-connected air-supported membrane emergency building according to claim 4, characterized in that, The airtight cavity of the first roof module (8) is not connected to the airtight cavity of the second roof module (9). The independent air supply branch of the first conversion section (13) is independent of the independent air supply branch of the second conversion section (14). The limiting member (26) and the supporting member of the first conversion section (13) lock the first conversion section (13) and the bearing body (1) and support them on the ground. The first conversion section (13) independently forms a mechanically stable boundary when the second conversion section (14) is kept closed for transport.

6. A double-L-wing convertible pre-connected air-supported membrane emergency building according to claim 1, characterized in that, The inflation control assembly includes an air source, a main valve group, a controller, and a power supply. The air source, the main valve group, the controller, and the power supply are located in a non-rotational position near the fixed base frame (11), fixed end frame, or segmented interface fixed frame (15) of the supporting body (1). The air supply branch includes an air rib air supply branch and an air pillow air supply branch. An isolation valve, a check valve, and a mechanical pressure relief valve are provided on the air rib air supply branch, and an isolation valve, a check valve, and a mechanical pressure relief valve are provided on the air pillow air supply branch.

7. A method for deploying a double-L-wing convertible pre-connected air-supported membrane emergency building, employing the double-L-wing convertible pre-connected air-supported membrane emergency building as described in any one of claims 1 to 6, characterized in that, Includes the following steps: S1: Position the emergency building in the box-type transport state, level and pre-anchor the fixed base frame (11) of the main body (1), and check the left and right sweep range, top clearance and the status of the roof, pipelines and drainage components. S2: Select the full unfolding or segment unfolding mode as needed, release the transport lock of the selected conversion segment, and at the same time maintain the pre-connection between the longitudinal anchoring edge of the flexible inflatable roof assembly (4) and the two eaves edge beams (3); S3: Controlled outward rotation of the left rigid L-shaped transition wing (2) and right rigid L-shaped transition wing (7) of the selected transition section, the first plate (21) is converted from the transport side wall to the extended floor, the second plate (22) is converted from the half-width top plate to the outer low wall, and the flexible inflatable roof assembly (4) is released by the separation of the two said eaves side beams (3); S4: When the first plate is close to horizontal, the adjustable leg (27) enters the support. After the left rigid L-shaped conversion wing (2) and the right rigid L-shaped conversion wing (7) reach the end position, they engage the limiting member (26) and complete the necessary anchoring, end protection, floor cross joint and drainage inspection. S5: After confirming that the limiting component (26), the adjustable leg (27), the anchoring and air circuit status meet the permission conditions, first pre-charge the air rib (41) with a low flow rate to form a stable arched frame, and then inflate the air pillow (42). S6: Check the pressure of each air chamber, roof shape, mechanical locking, floor joints, end enclosures and drainage system, and put it into use after meeting the usage conditions; S7: When it is necessary to expand the space, maintain the air isolation and working status of the roof module that has been put into use, and unfold, lock and inflate the next conversion section in the above order; S8: During recovery, the air cushion (42) is deflated, the air rib (41) is deflated, the flexible inflatable roof assembly (4) is folded in a controlled manner, the external anchor and the limiting member (26) are released, the adjustable support leg (27) is retracted, and the left rigid L-shaped conversion wing (2) and the right rigid L-shaped conversion wing (7) are closed, so that the building restores its box-type transport outline.

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