A large-span hangar capable of quick assembly and disassembly

Abstract

This invention relates to the field of hangar construction technology, specifically to a large-span hangar capable of rapid assembly and disassembly. The hangar includes columns, a roof, and an assembly / disassembly system positioned between the columns and the roof. The columns are connected by crossbars. A trigger rod is fixedly mounted at the bottom of the roof. Elastic support devices for reducing roof pressure are mounted on the side walls of the columns. Two sets of hangar doors are provided, each located at the entrance / exit, and hinged to columns on either side of the entrance / exit. A first connector connects the doors in each set, and the first connector is hinged to the doors. A second connector is located at the end of the two sets of doors that are close to each other. A guide device is located at the hangar entrance / exit. A fixing device is mounted on the first connector. This invention ensures that the hangar doors can fold stably along the guide device, thus allowing the hangar to better accommodate larger aircraft while also providing good load-bearing capacity and wind resistance.

Description

Technical Field

[0001] This invention relates to the field of hangar construction technology, specifically to a large-span hangar that can be quickly assembled and disassembled. Background Technology

[0002] Ordinary hangars are mainly prefabricated steel structures that are stored and transported in bulk as individual components. The storage and transportation of these components are inconvenient, and the loading and unloading efficiency is low. In addition, large-span hangars usually require supporting facilities such as duty rooms, offices, storage rooms, and maintenance rooms. However, existing facilities either lack these facilities or, although they exist, they do not form an integrated layout for use in close proximity. Therefore, such hangars are difficult to adapt to the needs of the military or special industries in the field and remote areas where conditions are harsh, transportation is inconvenient, building materials are scarce, foundation construction is difficult, there is no available hoisting equipment, and large-span multifunctional facilities such as demountable field hangars, warehouses, medical facilities, and conference rooms need to be quickly assembled.

[0003] Chinese patent CN209212014U discloses a modular, large-span, detachable hangar, which consists of multiple hangar units connected end to end. Each hangar unit includes two box modules, a frame, and enclosure materials. The box modules use ISO standard containers, modular cabins, or non-standard boxes for storing and transporting the frame, enclosure materials, and equipment used to build the large-span hangar. The frame and enclosure materials are detachable structures. The frame includes a roof frame and a door frame. The two box modules are spaced apart on the left and right sides. Multiple roof frames and multiple door frames are equally spaced on the box modules to form a roof truss structure. The enclosure materials are placed on the roof truss structure to form a hangar unit.

[0004] While the above solutions enable rapid hangar construction, the use of a standard frame is insufficiently strong, resulting in hangars with inadequate spans for accommodating large aircraft. Furthermore, the modular construction still requires the transportation of each module, some of which are quite large and inconvenient to transport. Additionally, wind resistance must be considered during construction to prevent the hangar doors from being blown open by strong winds after closing. The structural integrity of the hangar roof is also crucial, as the pressure increases significantly during heavy snowfall, placing high demands on the hangar's strength. Finally, the hangar must be capable of independent snow removal operations. Summary of the Invention

[0005] To address the aforementioned issues, a large-span hangar capable of rapid assembly and disassembly is provided. During installation, the columns are vertically fixed to the ground. A crane lifts the roof, allowing inserts at the bottom of the roof to be inserted into grooves on the upper part of the columns. When heavy snow accumulates on the roof, the inserts descend under the pressure of the roof. This pressure is dispersed by an elastic support device, preventing pressure concentration at the connection between the roof and the columns and thus avoiding column breakage. Two sets of hangar doors are installed, each connected by a first connector, creating a double-door sliding structure. This ensures that aircraft entry is not significantly obstructed by the doors, allowing the hangar to accommodate larger aircraft. A fixing device on the first connector provides excellent wind resistance when the doors are closed, preventing them from being blown open by wind. This allows for rapid installation of the hangar, and after installation, it exhibits excellent pressure and wind resistance.

[0006] To address the problems of existing technologies, this invention provides a large-span hangar that can be quickly assembled and disassembled, comprising columns, a roof, and an assembly / disassembly system installed between the columns and the roof. The columns are connected by crossbars. The assembly / disassembly system includes insert rods, elastic support devices, a hangar door, a first connector, a second connector, a fixing device, and a guiding device. The columns are arranged in a semi-enclosed structure to form a frame structure for the hangar side walls, wherein the openings of the semi-enclosed structure serve as the hangar's entrance and exit. The insert rods are fixedly installed at the bottom of the roof, and the roof is inserted into the top of the columns via the insert rods. Elastic support devices for reducing roof pressure are installed on the side walls of the columns. When the insertion rod is pressed down, it drives the elastic support device to exert force. There are two sets of doors, both of which are located at the entrance and exit, and are hinged to the columns on both sides of the entrance and exit. The first connector connects the doors in each set of doors, and the first connector is hinged to the doors. The second connector is located at the end of the two sets of doors that are close to each other. When the two second connectors corresponding to the two sets of doors come into contact, the entrance and exit of the hangar are closed. The guide device is located at the entrance and exit of the hangar and guides the opening and closing of the doors. The fixing device is located on the first connector and fixes the closed doors.

[0007] Preferably, the elastic support device includes a groove, a housing, a slider, and a spring; the groove is vertically formed at the top of the column; the housing is connected to one side of the column; the slider is slidably disposed inside the housing along the extension direction of the housing, and there is a gap between the slider and the housing; the spring is disposed in the gap along the extension direction of the housing, and the two ends of the spring are fixedly connected to the slider and the bottom of the housing, respectively.

[0008] Preferably, the elastic support device further includes a solenoid valve, a temperature sensor, a trigger button, and a heating element; the solenoid valve is disposed between the sleeve and the groove; the temperature sensor for detecting the external temperature is disposed on the ceiling, and the hangar has a preset external temperature threshold. When the temperature detected by the temperature sensor is lower than the external temperature threshold, the solenoid valve opens; the trigger button is disposed at the bottom of the sleeve, and the slider can trigger the trigger button; the heating element is disposed below the ceiling, and the trigger button can activate the heating element.

[0009] Preferably, a vent is provided on the side wall of the column, and the vent communicates with the groove.

[0010] Preferably, the casing is horizontally mounted on the side wall of the column.

[0011] Preferably, the casing is inclinedly installed on the side wall of the column, and the end of the casing away from the column is in contact with the ground.

[0012] Preferably, the guiding device includes a first guide rail and a second guide rail; the first guide rail is disposed at the upper part of the hangar entrance and exit along the width direction of the hangar; the second guide rail is disposed at the lower part of the hangar entrance and exit along the length direction of the first guide rail; the upper and lower parts of the second connecting member are respectively connected to the first guide rail and the second guide rail; the first guide rail and the second guide rail are used to guide the sliding of the second connecting member.

[0013] Preferably, the fixing device includes a first fixing component, which includes a first fixing groove, a plug-in groove, a plug-in rod, and a pump body; the first fixing groove is formed at the bottom of the first connector along the height direction of the first connector; the plug-in groove is formed on the second guide rail; the plug-in is slidably disposed in the first fixing groove along the extension direction of the first fixing groove, and the plug-in is plugged into the plug-in groove; the pump body is disposed in the first connector and communicates with the plug-in groove, and the pump body starts after the two second connectors come into contact.

[0014] Preferably, the fixing device further includes a second fixing component, which includes a rotating rod, a spring box, a second fixing groove, a pushing block, and a limiting block; the second fixing groove is vertically disposed on the side wall of the first connector and communicates with the first fixing groove; the pushing block is fixedly disposed on the side wall of the plug rod; the spring box is fixedly disposed on the first connector on one side of the second fixing groove; the rotating rod is fixedly disposed on the rotating end of the spring box, and the rotating rod can switch between vertical and horizontal states, and the pushing block can restrict the rotating rod to be in the vertical state; the limiting block for restricting the rotating rod to be in the horizontal state is horizontally fixedly disposed on the side wall of the first connector obliquely above the spring box.

[0015] Preferably, the disassembly and assembly system also includes a corrugated folding panel; the corrugated folding panel extends and retracts in the vertical direction, and the upper and lower parts of the corrugated folding panel are fixedly connected to the ceiling and the crossbar, respectively.

[0016] The advantages of this invention compared to the prior art are:

[0017] This invention, through the installation of insert rods, elastic support devices, hangar doors, a first connector, a second connector, a fixing device, and a guide device, requires the columns to be vertically fixed to the ground during installation. A crane lifts the canopy, allowing the insert rods at the bottom of the canopy to be inserted into the grooves at the top of the columns. When there is heavy snow accumulation on the canopy, the insert rods descend under the pressure of the canopy. The pressure on the canopy is dispersed by the elastic support device, preventing pressure concentration at the connection point between the canopy and the columns, which could cause the columns to break. By setting two sets of hangar doors, and connecting the doors in each set via the first connector, the hangar doors have a double-door sliding structure. This ensures that the aircraft is not significantly obstructed when entering the hangar, allowing the hangar to accommodate larger aircraft. Simultaneously, the fixing device on the first connector provides good wind resistance when the hangar doors are closed, preventing them from being blown open by wind. This allows for rapid installation of the hangar, and after installation, it possesses excellent pressure and wind resistance. Attached Figure Description

[0018] Figure 1 This is a three-dimensional diagram of a large-span hangar with its doors closed, designed for quick assembly and disassembly.

[0019] Figure 2 This is a 3D diagram of a large-span hangar with its doors open, designed for quick assembly and disassembly.

[0020] Figure 3 This is a perspective view of a second embodiment of a large-span hangar with a casing that can be quickly assembled and disassembled.

[0021] Figure 4 This is a 3D schematic diagram of a large-span hangar that can be quickly disassembled and reassembled, with part of the roof removed.

[0022] Figure 5 It is a large-span hangar that can be quickly assembled and disassembled. Figure 4 A magnified view of a portion of point A in the middle.

[0023] Figure 6 This is a three-dimensional schematic diagram of a large-span hangar that can be quickly disassembled and reassembled, after removing part of the roof and part of the shell.

[0024] Figure 7 It is a large-span hangar that can be quickly assembled and disassembled. Figure 6 A magnified view of a portion of point B in the middle.

[0025] Figure 8 This is a three-dimensional schematic diagram of a large-span hangar that can be quickly assembled and disassembled, with the hangar door connected to the first and second connecting parts on the guide device.

[0026] Figure 9 It is a large-span hangar that can be quickly assembled and disassembled. Figure 9 A magnified view of a portion of point C.

[0027] Figure 10 This is a three-dimensional schematic diagram of a hangar door that can be quickly assembled and disassembled, connecting to the first and second connecting parts.

[0028] Figure 11 It is a large-span hangar that can be quickly assembled and disassembled. Figure 10 A magnified view of a portion of point D.

[0029] The numbers on the map are:

[0030] 1. Column; 11. Horizontal bar; 2. Canopy; 3. Assembly / disassembly system; 31. Insert rod; 32. Elastic support device; 321. Groove; 322. Housing; 323. Slider; 324. Spring; 325. Solenoid valve; 326. Trigger button; 327. Heating tube; 328. Vent hole; 33. Warehouse door; 34. First connector; 35. Second connector; 36. Fixing device; 361. First fixing component; 3611. First fixing groove; 3612. Insertion groove; 3613. Insertion rod; 362. Second fixing component; 3621. Rotating rod; 3622. Spring box; 3623. Second fixing groove; 3624. Push block; 3625. Limiting block; 37. Guide device; 371. First guide rail; 372. Second guide rail; 38. Corrugated folding plate. Detailed Implementation

[0031] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 8A large-span hangar capable of rapid assembly and disassembly includes columns 1, a roof 2, and an assembly / disassembly system 3 installed between the columns 1 and the roof 2. The columns 1 are connected by crossbars 11. The assembly / disassembly system 3 includes insert rods 31, elastic support devices 32, a hangar door 33, a first connector 34, a second connector 35, a fixing device 36, and a guide device 37. The columns 1 are arranged in a semi-enclosed structure to form the frame structure of the hangar side walls, with the openings of the semi-enclosed structure serving as the hangar entrance and exit. The insert rods 31 are fixedly installed at the bottom of the roof 2, and the roof 2 is inserted into the top of the columns 1 via the insert rods 31. The elastic support device 32, used to reduce the pressure on the roof 2, is installed on the side wall of the columns 1. When the insert rods 31 are pressed down, they activate the elastic support device 32. The system includes a support device 32; two sets of storage doors 33 are provided, both sets of which are located at the entrance and exit, and are hinged to the columns 1 on both sides of the entrance and exit; a first connector 34 connects the storage doors 33 in each set of storage doors 33, and the first connector 34 is hinged to the storage doors 33; a second connector 35 is located at the end of the two sets of storage doors 33 that are close to each other, and when the two second connectors 35 corresponding to the two sets of storage doors 33 come into contact, the entrance and exit of the hangar are closed; a guide device 37 is located at the entrance and exit of the hangar, and the guide device 37 guides the opening and closing of the storage doors 33; a fixing device 36 is located on the first connector 34, and the fixing device 36 fixes the closed storage doors 33.

[0033] The canopy 2 is an aluminum alloy truss structure, which allows for a 30-meter span without a central column. The overall structure is lightweight, quick to install, and easy to disassemble. The columns 1 are also aluminum alloy truss structures, effectively and evenly distributing the diagonal forces from the canopy 2, enabling a larger span. The lighter weight of columns 1 and canopy 2 facilitates installation and transportation. Furthermore, the truss structure significantly increases the compressive strength of both canopy 2 and columns 1. During installation, columns 1 must be vertically fixed to the ground. Columns 1 are connected by horizontal crossbars 11, which are also truss structures. A cover is installed between adjacent columns 1 to conceal the gaps. The top of each column 1 has a groove 321. During canopy 2 installation, it needs to be lifted by a crane. Then, the insert rod 31 at the bottom of the canopy 2 is aligned with the groove 321 at the top of the column 1. The canopy 2 is then lowered, and the insert rod 31 at the bottom of the canopy 2 is inserted into the groove 321 at the top of the column 1, thus forming a cavity in the groove 321 where the insert rod 31 is inserted. The vault doors 33 are divided into two groups, with each group having a sliding door structure. That is, the two groups of vault doors 33 can be opened or closed in opposite directions. When the vault doors 33 are opened, the vault doors 33 in the same group have a folding structure. The two... When the second connecting piece 35 is in a separated state and the hangar door 33 is in a closed state, the hangar doors 33 in the same group are discharged horizontally in a straight line. The two second connecting pieces 35 on the two groups of hangar doors 33 are in contact with each other. Only after the two second connecting pieces 35 are in contact with each other will the fixing device 36 set on the first connecting piece 34 be activated. The fixing device 36 fixes the hangar doors 33 in a straight line arrangement, so that the hangar doors 33 cannot rotate. In this way, when the outside wind impacts the hangar doors 33, the hangar doors 33 will not be blown open. When it is necessary to bring the aircraft into the hangar, the hangar doors 33 are double doors, and the two groups of hangar doors 33 are folded together. This can ensure that the width of the hangar entrance and exit reaches the maximum. This is because the wingspan of the aircraft is large. The wider the entrance and exit, the larger the aircraft that can enter the hangar. The hangar doors 33 are usually designed according to the full height of the hangar. The total length is divided into several panels, each panel is about 10 to 20 meters wide. The hangar doors 33 are made of steel frames with thin steel plates on the outside, with a thickness of about 500 to 700 mm. The hangar entrance and exit are equipped with a guide device 37, which guides the second connecting piece 35 and ensures that the hangar door 33 can be folded stably along the guide device 37. In this way, the hangar can better accommodate larger aircraft, while also having good load-bearing capacity and wind resistance.

[0034] Reference Figures 4-7The elastic support device 32 includes a groove 321, a housing 322, a slider 323, and a spring 324. The groove 321 is vertically formed on the top of the column 1. The housing 322 is connected to one side of the column 1. The slider 323 is slidably disposed inside the housing 322 along the extension direction of the housing 322, and there is a gap between the slider 323 and the housing 322. The spring 324 is disposed in the gap along the extension direction of the housing 322, and the two ends of the spring 324 are fixedly connected to the slider 323 and the bottom of the housing 322, respectively.

[0035] When installing the canopy 2, it needs to be lifted by a crane. Then, the insertion rod 31 at the bottom of the canopy 2 is aligned with the groove 321 at the top of the column 1. The canopy 2 is then lowered, and the insertion rod 31 at the bottom of the canopy 2 is inserted into the groove 321 at the top of the column 1. At this time, the insertion rod 31 and the groove 321 slide and form a cavity. When it snows outside, the pressure on the top of the canopy 2 increases continuously, and the pressure of the canopy 2 on the insertion rod 31 also increases continuously. The insertion rod 31 squeezes the air in the groove 321 into the sleeve 322 that is connected to the groove 321, causing the slider 323 in the sleeve 322 to slide. After the slider 323 slides, it will compress the spring 324. In this way, the pressure at the canopy 2 is reduced, avoiding the situation where the stress point between the canopy 2 and the column 1 is too small, and the column 1 and the stress point of the canopy 2 break when the weight of the canopy 2 is too large.

[0036] Reference Figures 4-7 The elastic support device 32 also includes a solenoid valve 325, a temperature sensor, a trigger button 326, and a heating element 327. The solenoid valve 325 is located between the sleeve and the groove 321. The temperature sensor for detecting the external temperature is located on the ceiling 2. The hangar has a preset external temperature threshold. When the temperature detected by the temperature sensor is lower than the external temperature threshold, the solenoid valve 325 opens. The trigger button 326 is located at the bottom of the housing 322. The slider 323 can trigger the trigger button 326. The heating element 327 is located below the ceiling 2. The trigger button 326 can activate the heating element 327.

[0037] When the outside temperature is high, the solenoid valve 325 is closed. When the outside temperature is low, and the temperature detected by the temperature sensor is below the outside temperature threshold, the solenoid valve 325 opens. When snow accumulates on the ceiling 2, the overall weight of the ceiling 2 will continuously increase. The ceiling 2 uses the insert rod 31 to force the air in the groove 321 into the housing 322, causing the slider 323 inside the housing 322 to compress the spring 324. When the weight of the ceiling 2 reaches a certain level, the slider 323 will overcome the elastic force of the spring 324 and trigger the button. When button 326 is triggered, heating element 327 is activated, heating the surrounding air. The hot air acts on the ceiling 2, melting the snow on the ceiling 2. Since heating element 327 is located below the ceiling 2, the lower part of the snow melts first when heating the snow above the ceiling 2. Because the ceiling 2 has an "A" shape, the friction between the snow and the ceiling 2 decreases, causing the snow to loosen. The loosened snow slides down the inclined direction of the ceiling 2, reducing the overall weight of the ceiling 2.

[0038] Reference Figure 7 A vent 328 is provided on the side wall of column 1, and the vent 328 communicates with the groove 321.

[0039] When hoisting the ceiling 2, the ceiling 2 is lifted so that the insertion rod 31 at the bottom of the ceiling 2 is aligned with the groove 321 at the top of the column 1. Then the ceiling 2 is lowered. When the insertion rod 31 is inserted into the groove 321, the air in the groove 321 is discharged through the vent hole 328. After the insertion rod 31 slides past the vent hole 328, the vent hole 328 is blocked by the insertion rod 31. At this time, the air in the groove 321 is no longer discharged. At this time, the solenoid valve 325 is in the closed state, so the insertion rod 31 cannot be lowered further. Only after the solenoid valve 325 is opened will the insertion rod 31 push the slider 323 in the housing 322 under the weight of the ceiling 2 to achieve the sliding down again.

[0040] Reference Figure 2 The casing 322 is horizontally installed on the side wall of column 1.

[0041] The present invention provides a first embodiment of the housing 322, which sets the housing 322 to a horizontal state, thus ensuring that the size of the housing 322 is small and convenient for transportation and installation.

[0042] Reference Figure 3 The casing 322 is inclinedly installed on the side wall of the column 1, and the end of the casing 322 away from the column 1 is in contact with the ground.

[0043] The present invention provides a second embodiment of the casing 322, wherein the end of the casing 322 near the column 1 is higher than the end of the casing 322 below the column 1, and the casing 322 is set in an inclined state. Although the size of the casing 322 is large, when the weight of the ceiling 2 is heavy, the mass of the ceiling 2 is distributed through the inclined casing 322, which increases the support strength of the column 1, provides a load-bearing capacity for the column 1, and ensures that the column 1 has better support and better distributes the pressure of the ceiling.

[0044] Reference Figure 3 and Figure 8 The guiding device 37 includes a first guide rail 371 and a second guide rail 372. The first guide rail 371 is arranged at the upper part of the hangar entrance and exit along the width direction of the hangar. The second guide rail 372 is arranged at the lower part of the hangar entrance and exit along the length direction of the first guide rail 371. The upper and lower parts of the second connecting member 35 are respectively connected to the first guide rail 371 and the second guide rail 372. The first guide rail 371 and the second guide rail 372 are used to guide the sliding of the second connecting member 35.

[0045] By setting the first guide rail 371 and the second guide rail 372, the two second connecting pieces 35 can slide stably along the width direction of the hangar entrance and exit, ensuring that the hangar door 33 can be opened stably.

[0046] Reference Figures 8-11 The fixing device 36 includes a first fixing component 361, which includes a first fixing groove 3611, a plug-in groove 3612, a plug-in rod 3613, and a pump body. The first fixing groove 3611 is formed at the bottom of the first connector 34 along the height direction of the first connector 34. The plug-in groove 3612 is formed on the second guide rail 372. The plug-in is slidably disposed in the first fixing groove 3611 along the extension direction of the first fixing groove 3611, and the plug-in is plugged into the plug-in groove 3612. The pump body is disposed in the first connector 34 and communicates with the plug-in groove 3612. The pump body starts after the two second connectors 35 come into contact.

[0047] As the vault door 33 gradually closes, the two second connectors 35 on the two sets of vault doors 33 will come into contact with each other. Then the pump body starts and pushes the connector out of the connector slot 3612, so that the connector is engaged with the connector slot 3612. In this way, the vault door 33 cannot be rotated, thus fixing the vault door 33.

[0048] Reference Figure 10 and Figure 11The fixing device 36 further includes a second fixing component 362, which includes a rotating rod 3621, a spring box 3622, a second fixing groove 3623, a pushing block 3624, and a limiting block 3625. The second fixing groove 3623 is vertically disposed on the side wall of the first connecting member 34 and communicates with the first fixing groove 3611. The pushing block 3624 is fixedly disposed on the side wall of the plug-in rod 3613. The spring box 3622 is fixedly disposed on the first connecting member 34 on one side of the second fixing groove 3623. The rotating rod 3621 is fixedly disposed on the rotating end of the spring box 3622 and can switch between vertical and horizontal states. The pushing block 3624 can limit the rotating rod 3621 to be in the vertical state. The limiting block 3625, which is used to limit the rotating rod 3621 to be in the horizontal state, is horizontally fixedly disposed on the side wall of the first connecting member 34 diagonally above the spring box 3622.

[0049] When the insertion rod 3613 is not inserted into the insertion slot 3612, the rotating rod 3621 is in a vertical state. At this time, the doors 33 hinged on both sides of the first connecting member 34 can rotate. After the insertion rod 3613 is inserted into the insertion slot 3612, all the doors 33 are arranged in a straight line. The falling insertion rod 3613 drives the pushing block 3624 to slide in the second fixed slot 3623. The pushing block 3624 descends. When the pushing block 3624 has not descended, it restricts the rotating rod 3621 to a vertical state. As the pushing block 3624 descends, the coil spring box 3622 drives the rotating rod 3621 to rotate. The rotating rod 3621 gradually rotates to... The rotating rod 3621 is in a horizontal position and is restricted by the limiting block 3625. Thus, the limiting block 3625 restricts the rotating rod 3621 to a horizontal position. The rotating rod 3621, in a horizontal position, is placed between the two doors 33, providing support between the doors 33 and the first connecting member 34, and enhancing the connection strength between the doors 33 and the first connecting member 34 after closing. When it is necessary to open the doors 33, the insertion rod 3613 is pulled out from the insertion slot 3612. The insertion rod 3613 drives the push block 3624 to rise. The rising push block 3624 pushes the rotating rod 3621 to rotate to a vertical position, and the spring in the spring box 3622 is wound up again.

[0050] Reference Figure 6 The disassembly and assembly system 3 also includes a corrugated folding plate 38; the corrugated folding plate 38 extends and retracts in the vertical direction, and the upper and lower parts of the corrugated folding plate 38 are fixedly connected to the ceiling 2 and the crossbar 11, respectively.

[0051] Because snow accumulates on the top of the canopy 2 during snowfall, and the snow accumulation increases the weight of the canopy 2, the plug rod 3613 at the bottom of the canopy 2 slides vertically with the top of the column 1. As the weight of the canopy 2 increases, it will lower. There is a certain distance between the canopy 2 and the crossbar 11. In order to prevent the outside wind from blowing into the hangar, a corrugated folding plate 38 is installed to block the outside wind.

[0052] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A large-span hangar that can be quickly assembled and disassembled, comprising columns (1) and a roof (2); Its features are, It also includes a disassembly and assembly system (3) for connecting the column (1) and the roof (2), the disassembly and assembly system (3) including a plug (31) and a flexible support device (32). The insert rod (31) is fixedly installed at the bottom of the ceiling (2). The ceiling (2) is inserted into the top of the column (1) through the insert rod (31). After the insert rod (31) is inserted, a cavity is formed inside the column (1). The elastic support device (32) is used to reduce the pressure on the ceiling (2) and the elastic support device (32) is set on the side wall of the column (1). The cavity is connected to the insert rod (31) and the elastic support device (32). When the ceiling (2) is subjected to pressure, the insert rod (31) pushes the air in the cavity to squeeze the elastic support device (32). The elastic support device (32) includes a groove (321), a housing (322), a slider (323), a spring (324), a solenoid valve (325), a temperature sensor, a trigger button (326), and a heating element (327). The groove (321) is vertically opened at the top of the column (1); The casing (322) is connected to one side of the column (1); The slider (323) is slidably disposed inside the sleeve (322) along the extension direction of the sleeve (322), and there is a gap between the slider (323) and the sleeve (322); The spring (324) is set in the gap along the extension direction of the sleeve (322), and the two ends of the spring (324) are fixedly connected to the bottom of the slider (323) and the sleeve (322) respectively; The solenoid valve (325) is disposed between the sleeve and the groove (321); The temperature sensor used to detect the outside temperature is installed on the ceiling (2). The hangar has a preset outside temperature threshold. When the temperature detected by the temperature sensor is lower than the outside temperature threshold, the solenoid valve (325) opens. The trigger button (326) is located at the bottom of the casing (322), and the slider (323) can trigger the trigger button (326); The heating element (327) is located below the ceiling (2), and the trigger button (326) can activate the heating element (327); A ventilation hole (328) is provided on the side wall of the column (1), and the ventilation hole (328) communicates with the groove (321); When the outside temperature is high, the solenoid valve (325) is closed. When the outside temperature is low, the temperature detected by the temperature sensor is lower than the outside temperature threshold, and the solenoid valve (325) is activated. When snow accumulates on the roof (2), the overall weight of the roof (2) will increase continuously. The roof (2) uses the insert rod (31) to press the air in the groove (321) into the housing (322), so that the slider (323) in the housing (322) squeezes the spring (324). When the weight of the roof (2) reaches a certain level, the slider (323) will overcome the elastic force of the spring (324) and trigger the trigger button (326). Then the heating tube (327) is activated. The heating tube (327) heats the surrounding air. The hot air acts on the roof (2), and the snow on the roof (2) will melt.

2. The large-span hangar capable of rapid assembly and disassembly according to claim 1, characterized in that, The casing (322) is horizontally set on the side wall of the column (1).

3. A large-span hangar capable of rapid assembly and disassembly according to claim 1, characterized in that, The casing (322) is inclined on the side wall of the column (1), and the end of the casing (322) away from the column (1) is in contact with the ground.

4. A large-span hangar capable of rapid assembly and disassembly according to claim 1, characterized in that, A horizontal crossbar (11) is fixedly installed between adjacent columns (1) along the surrounding direction of the column (1). The disassembly and assembly system (3) also includes a corrugated folding plate (38). The corrugated folding plate (38) extends and retracts in the vertical direction, and the upper and lower parts of the corrugated folding plate (38) are fixedly connected to the ceiling (2) and the crossbar (11) respectively.

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