Fabricated lightweight airtight structure

Abstract

The utility model discloses an assembly type light-weight airtight structure, and relates to the field of airtight structures. The assembly type light airtight structure comprises an outer frame formed by connecting a plurality of frame rods, a door frame formed by connecting a plurality of door plates, a pressure-bearing airtight door correspondingly connected with the door frame and a plurality of sealing plates detachably connected to the outer frame, the door frame is detachably connected to the outer frame, and an airtight cavity is defined by the outer frame, the door frame, the pressure-bearing airtight door and the sealing plates. And each door plate is detachably connected with one frame rod through an airtight connecting piece. According to the assembly type light-weight airtight structure, the frame rods and the door plate are connected to form the outer frame and the door frame and then are assembled with the pressure-bearing airtight door and the sealing plate to obtain the airtight structure, and during assembly, the frame rods and the door plate are connected through the airtight connecting pieces to achieve airtightness; the air tightness can be improved while the bearing capacity and the structural strength of the airtight structure are guaranteed, and assembly, disassembly and transportation are convenient.

Description

Technical Field

[0001] The present application relates to the field of airtight structures, and more particularly, to a prefabricated lightweight airtight structure. Background Art

[0002] Due to the limitations of on-site processing conditions, existing airtight structures are generally manufactured integrally in a factory and then transported to the site for use. Such airtight structures cannot be disassembled after being fabricated, have poor expandability, are difficult to transport, and when an airtight structure needs to be used in an existing space or inside a building, a passage for the airtight structure to enter needs to be reserved. Moreover, airtight structures with large sizes and heavy weights may not even be able to enter the existing space, presenting many limitations.

[0003] Therefore, there is a need for a prefabricated lightweight airtight structure that is easy to disassemble and assemble, has high load-bearing capacity, good airtightness, and is convenient for transportation to meet the usage requirements. Summary of the Utility Model

[0004] The purpose of the present application is to provide a prefabricated lightweight airtight structure, which has the advantages of being easy to disassemble and assemble, having high load-bearing capacity, good airtightness, and being convenient for transportation.

[0005] The present application is implemented as follows:

[0006] The present application provides a prefabricated lightweight airtight structure, which includes an outer frame composed of a plurality of frame rods connected together, a door frame composed of a plurality of door panels connected together, a pressure-bearing airtight door connected to the door frame correspondingly, and a plurality of sealing plates detachably connected to the outer frame. The door frame is detachably connected to the outer frame, and the outer frame, the door frame, the pressure-bearing airtight door, and the sealing plates enclose to form an airtight cavity. Each door panel is detachably connected to a frame rod through an airtight connecting member.

[0007] In some alternative embodiments, at least one inner frame is connected to the door frame. The inner frame is composed of a plurality of inner frame rods connected together. Each inner frame is connected with a detachable sealing plate, and each inner frame rod is detachably connected to a corresponding frame rod or door panel through an airtight connecting member.

[0008] In some alternative embodiments, the corresponding inner frame rods between two adjacent inner frames are detachably connected through an airtight connecting member.

[0009] In some alternative embodiments, the airtight connecting member includes two cantilever plates with their sides pressing against each other and a plurality of bolts. The plurality of bolts pass through one cantilever plate and are connected to the corresponding blind holes on the other cantilever plate, and the plurality of bolts pass through the other cantilever plate and are connected to the corresponding blind holes on one cantilever plate.

[0010] In some alternative embodiments, the airtight connecting member includes at least one sealing strip, and the sealing strip is arranged between the two cantilever plates.

[0011] In some alternative embodiments, at least one cantilever plate is provided with a sealing groove for accommodating a sealing strip.

[0012] In some alternative embodiments, it further includes at least one pressing plate; the pressing plate is detachably connected to the frame rod or the inner frame rod to press and fix the sealing plate against the corresponding frame rod or inner frame rod.

[0013] In some alternative embodiments, at least one sealing strip is provided between the frame rod or the inner frame rod and the corresponding pressed sealing plate.

[0014] In some alternative embodiments, the frame rod or the inner frame rod is provided with a strip accommodating groove for accommodating the sealing strip that presses against the corresponding sealing plate.

[0015] In some alternative embodiments, the outer frame is a cuboid, cube, cylinder or prism formed by connecting a plurality of frame rods.

[0016] The beneficial effects of the present application are as follows: The prefabricated lightweight airtight structure provided by the present application includes an outer frame formed by connecting a plurality of frame rods, a door frame formed by connecting a plurality of door panels, a pressure-bearing airtight door connected corresponding to the door frame, and a plurality of sealing plates detachably connected to the outer frame. The door frame is detachably connected to the outer frame. The outer frame, the door frame, the pressure-bearing airtight door and the sealing plates enclose an airtight cavity. Each door panel is detachably connected to a frame rod through an airtight connecting piece. The prefabricated lightweight airtight structure provided by the present application forms an airtight structure by using frame rods and door panels to respectively connect and form the outer frame and the door frame and then assembling them with the pressure-bearing airtight door and the sealing plates, and realizes airtightness by connecting the frame rods and the door panels through airtight connecting pieces during assembly. It can improve airtightness while ensuring the bearing capacity and structural strength of the airtight structure, and is convenient for installation, disassembly and transportation. It can be used in the field of pressurized buildings in high-altitude areas or other related fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the prefabricated lightweight airtight structure provided by the embodiment of the present application;

[0019] Figure 2 It is a schematic structural diagram of the outer frame in the prefabricated lightweight airtight structure provided by the embodiment of the present application;

[0020] Figure 3Schematic cross-sectional structure diagram of the frame rod in the prefabricated lightweight airtight structure provided by the embodiment of the present application;

[0021] Figure 4 Schematic structure diagram of the inner frame in the prefabricated lightweight airtight structure provided by the embodiment of the present application.

[0022] Figure 5 Schematic cross-sectional structure diagram of one longitudinal rod and two cross rods of the inner frame in the prefabricated lightweight airtight structure provided by the embodiment of the present application;

[0023] Figure 6 Schematic cross-sectional structure diagram of another longitudinal rod of the inner frame in the prefabricated lightweight airtight structure provided by the embodiment of the present application;

[0024] Figure 7 Schematic structure diagram of the door frame in the prefabricated lightweight airtight structure provided by the embodiment of the present application;

[0025] Figure 8 Schematic cross-sectional structure diagram of the connection between the frame rods of the outer frame and the longitudinal rods of the two inner frames in the prefabricated lightweight airtight structure provided by the embodiment of the present application;

[0026] Figure 9 Schematic cross-sectional structure diagram of the connection between the longitudinal rods of two adjacent inner frames on one surface of the outer frame in the prefabricated lightweight airtight structure provided by the embodiment of the present application;

[0027] Figure 10 Schematic cross-sectional structure diagram of the connection between the inner frame and the sealing plate in the prefabricated lightweight airtight structure provided by the embodiment of the present application;

[0028] Figure 11 Schematic cross-sectional structure diagram of the connection between the door panel of the door frame and the frame rod of the outer frame in the prefabricated lightweight airtight structure provided by the embodiment of the present application

[0029] Figure 12 Schematic cross-sectional structure diagram of the connection between the door panel of the door frame and the longitudinal rod of the inner frame in the prefabricated lightweight airtight structure provided by the embodiment of the present application.

[0030] In the figure: 100, outer frame; 110, frame rod; 111, first cantilever plate; 112, first blind bolt hole; 113, first sealing groove; 114, first bolt through-hole; 200, inner frame; 210, longitudinal rod; 220, cross bar; 230, second cantilever plate; 240, second bolt through-hole; 250, second blind bolt hole; 260, rubber strip accommodating groove; 270, second sealing groove; 280, pressing plate bolt hole; 300, door frame; 310, pressure-bearing airtight door; 320, door panel; 330, third cantilever plate; 340, third bolt through-hole; 350, third blind bolt hole; 360, reinforcing rib plate; 400, sealing plate; 410, sealing strip; 420, pressing plate; 421, bolt connection hole; 430, airtight cavity. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0033] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0034] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0035] In addition, terms such as "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0036] In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0037] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0038] The features and performance of the prefabricated lightweight airtight structure of the present application will be further described in detail below in conjunction with the embodiments.

[0039] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12 As shown in

[0040] Among them, the door frame 300 is connected to one side surface of the outer frame 100. On the side surface of the outer frame 100 to which the door frame 300 is connected, two inner frames 200 are also connected. Three inner frames 200 are respectively connected to the other five surfaces of the outer frame 100. A sealing plate 400 is connected to the inner wall of each inner frame 200. Four pressing plates 420 are respectively connected to the four sides of the inner frame 200 by bolts. The four pressing plates 420 respectively press and fix the four side edges of the corresponding sealing plate 400 to the inner frame 200. A sealing strip 410 is respectively provided between the four side edges of the sealing plate 400 and the corresponding inner frame 200. A sealing strip 410 is respectively provided between the four sides of each surface of the outer frame 100 and the corresponding inner frame 200 and the door frame 300. A sealing strip 410 is respectively provided between two adjacent inner frames 200 on each surface of the outer frame 100 and between the inner frame 200 and the door frame 300. An airtight cavity 430 is formed by enclosing the outer frame 100, each inner frame 200, the door frame 300, the pressure-bearing airtight door 310 and each sealing plate 400; the sealing plate 400 is a light-proof fiberglass plate.

[0041] As Figure 2 and Figure 3 shown, the outer frame 100 is composed of twelve frame bars 110 made of aluminum alloy. On the adjacent two side surfaces of each frame bar 110, first cantilever plates 111 extending along its length direction are respectively provided. On the adjacent side of the two first cantilever plates 111, first blind bolt holes 112 arranged at intervals along its length direction, first sealing grooves 113 extending along its length direction and first through bolt holes 114 arranged at intervals along its length direction are respectively provided. The first sealing groove 113 is located between the first blind bolt hole 112 and the first through bolt hole 114. The first sealing groove 113 is used to accommodate a sealing strip 410 that presses the inner frame 200 or the door frame 300. The first blind bolt hole 112 and the first through bolt hole 114 are used to connect the inner frame 200 or the door frame 300.

[0042] As Figure 4 、 Figure 5 and Figure 6As shown, each inner frame 200 includes a square frame body formed by connecting four inner frame rods. The four inner frame rods include two longitudinal rods 210 made of aluminum alloy and two cross rods 220 made of aluminum alloy. Second cantilever plates 230 extending along the length direction are respectively provided on opposite side surfaces of the longitudinal rods 210 and the cross rods 220. Second bolt through holes 240 and second bolt blind holes 250 arranged at intervals along the length direction are respectively provided on the second cantilever plates 230 on the outer sides of the two longitudinal rods 210 and the two cross rods 220 of the inner frame 200. Rubber strip accommodating grooves 260 extending along the length direction are respectively provided on the second cantilever plates 230 on the inner sides of the two longitudinal rods 210 and the two cross rods 220 of the inner frame 200. The rubber strip accommodating grooves 260 are used to accommodate the sealing strips 410 that press against the inner wall of the pressure sealing plate 400; the second bolt through holes 240 of the inner frame 200 are used to be bolt-connected with the first bolt blind holes 112 of the corresponding outer frame 100, the second bolt blind holes 250 of the corresponding door frame 300 or adjacent inner frames 200. The second bolt blind holes 250 of the inner frame 200 are used to be bolt-connected with the first bolt through holes 114 of the corresponding outer frame 100, the second bolt through holes 240 of the corresponding door frame 300 or adjacent inner frames 200; Second sealing grooves 270 extending along the length direction are respectively provided on the second cantilever plates 230 on the outer sides of the longitudinal rods 210 of the two inner frames 200 on each side surface of the outer frame 100. The second sealing grooves 270 are located between the corresponding second bolt through holes 240 and second bolt blind holes 250. The second sealing grooves 270 are used to accommodate the sealing strips 410 that press against the second cantilever plates 230 in the door frame 300 or adjacent longitudinal rods 210; When the second bolt blind holes 250 and the second bolt through holes 240 on the second cantilever plates 230 on the outer sides of the longitudinal rods 210 of two adjacent inner frames 200 are bolt-connected to each other, the rubber strip accommodating grooves 260 on the second cantilever plates 230 on the inner sides of the longitudinal rods 210 of the two adjacent inner frames 200 face the same side respectively. Pressing plate bolt holes 280 arranged at intervals are respectively provided on the longitudinal rods 210 and the cross rods 220. Bolt connection holes 421 corresponding to the pressing plate bolt holes 280 are provided on the pressing plate 420.

[0043] As Figure 7As shown in the figure, the door frame 300 is composed of four aluminum alloy door panels 320 connected in sequence. A third cantilever plate 330 is provided on the outer side of each door panel 320. Third bolt through-holes 340 and third bolt blind holes 350 are arranged at intervals along the length direction of the third cantilever plate 330. The third bolt through-holes 340 and third bolt blind holes 350 on the third cantilever plates 330 at the top, bottom and one side of the door frame 300 are used to be bolted to the first bolt blind holes 112 and first bolt through-holes 114 on the first cantilever plate 111 in the corresponding frame rod 110. The third bolt through-holes 340 and third bolt blind holes 350 on the third cantilever plates 330 on the other side of the door frame 300 are used to be connected to the second bolt blind holes 250 and second bolt through-holes 240 on the longitudinal rod 210 in the corresponding inner frame 200; Two reinforcing rib plates 360 extending along the length direction are respectively protruded on the third cantilever plates 330 in the two door panels 320 of each door frame 300. The pressure-bearing airtight door 310 used in this embodiment is an existing airtight door, and its connection with the door frame 300 is an existing connection structure and not the focus of protection of this application, so the structure and connection relationship thereof will not be elaborated here.

[0044] The assembled lightweight airtight structure provided by the embodiment of the present application uses the outer frame 100 composed of connected frame rods 110 as an exoskeleton support, and respectively connects the inner frame 200 as the carrier of the sealing plate 400 to each surface of the outer frame 100, connects the door frame 300 as the carrier of the pressure-bearing airtight door 310 to one surface of the outer frame 100, connects the sealing plate 400 to the inner wall of each inner frame 200, and connects the pressure-bearing airtight door 310 to the door frame 300, so that the outer frame 100, the inner frame 200 and the door frame 300 are connected and jointly form a ribbed aluminum alloy structure to form a load-bearing system, and an airtight cavity 430 is enclosed between the outer frame 100, each inner frame 200, the door frame 300, the pressure-bearing airtight door 310 and each sealing plate 400, ensuring the overall structural strength and load-bearing performance of the assembled lightweight airtight structure.

[0045] Among them, the frame bars 110 forming the outer frame 100 are made of aluminum alloy profiles. The first cantilever plates 111 are respectively arranged on the adjacent two sides of the frame bars 110. The first blind bolt holes 112, the first sealing grooves 113 and the first bolt through holes 114 for connecting the inner frame 200 are respectively arranged on each first cantilever plate 111. The first blind bolt holes 112 and the first bolt through holes 114 arranged on the first cantilever plates 111 in the frame bars 110 are used to be fixedly connected to the corresponding side edges of the adjacent inner frame 200 or the door frame 300 through bolts, so as to facilitate the assembly of the operators while ensuring the connection stability between the outer frame 100 and the inner frame 200 or the door frame 300. The first sealing grooves 113 arranged on the first cantilever plates 111 in the frame bars 110 are used to place the sealing strips 410 that press against the side edges of the inner frame 200 or the door frame 300, which can effectively improve the airtightness of the connection between the outer frame 100 and the inner frame 200 and between the outer frame 100 and the door frame 300, and avoid the air leakage in the airtight cavity 430 from affecting the airtightness.

[0046] The vertical bars 210 and the horizontal bars 220 are made of extruded aluminum alloy profiles. The vertical bars 210 and the horizontal bars 220 are welded to form a rectangular inner frame 200. The second cantilever plates 230 extending along their lengths are respectively arranged on the opposite sides of the vertical bars 210 and the horizontal bars 220. The second bolt through holes 240 and the second blind bolt holes 250 for connecting with the first blind bolt holes 112 and the first bolt through holes 114 on the first cantilever plates 111 of the frame bars 110 through bolts are respectively arranged on the second cantilever plates 230 outside the two vertical bars 210 and the two horizontal bars 220 of the inner frame 200. The rubber strip receiving grooves 260 are arranged on the second cantilever plates 230 inside the two vertical bars 210 and the two horizontal bars 220 of the inner frame 200. The rubber strip receiving grooves 260 are used to receive the sealing strips 410 that press against the inner wall of the pressure sealing plate 400. The second sealing grooves 270 are respectively arranged on the second cantilever plates 230 outside one vertical bar 210 of the two inner frames 200 on each surface of the outer frame 100. The second sealing grooves 270 are used to receive the sealing strips 410 that press against the second cantilever plates 230 of the adjacent door frame 300 or the adjacent vertical bars 210, so as to ensure the structural strength, stability and airtightness of the connection between the inner frame 200 and the outer frame 100, between the inner frame 200 and the door frame 300, and between two adjacent inner frames 200.

[0047] The door frame 300 is composed of four door panels 320 welded in sequence. A third cantilever plate 330 is provided on the outer side of each door panel 320. A third bolt through-hole 340 and a third bolt blind-hole 350 are provided on the third cantilever plate 330. The third bolt through-hole 340 is used to connect with the first bolt blind-hole 112 on the first cantilever plate 111 in the corresponding frame rod 110 or the second bolt blind-hole 250 on the longitudinal rod 210 in the corresponding inner frame 200. The third bolt blind-hole 350 is used to connect with the first bolt through-hole 114 on the first cantilever plate 111 in the corresponding frame rod 110 or the second bolt through-hole 240 on the longitudinal rod 210 in the corresponding inner frame 200. Thus, it is convenient for the operator to connect the door frame 300 to the outer frame 100 and connect and fix it to the adjacent inner frame 200. Two reinforcing rib plates 360 extending along its length direction are respectively protruded on the third cantilever plates 330 of the two door panels 320 of each door frame 300, which can further improve the structural strength of the door frame 300 and avoid deformation of the door frame 300 when the pressure in the airtight cavity 430 is too high.

[0048] In this embodiment, when the frame rod 110 of the outer frame 100 is connected to the longitudinal rod 210 or the cross rod 220 of the inner frame 200 through an airtight connector, the airtight connector includes a first cantilever plate 111, a second cantilever plate 230, and a bolt passing through and connecting the first cantilever plate 111 and the second cantilever plate 230; when the frame rod 110 of the outer frame 100 is connected to the door panel 320 of the door frame 300 through an airtight connector, the airtight connector includes a first cantilever plate 111, a third cantilever plate 330, and a bolt passing through and connecting the first cantilever plate 111 and the third cantilever plate 330; when the longitudinal rod 210 of the inner frame 200 is connected to the door panel 320 of the door frame 300 through an airtight connector, the airtight connector includes a second cantilever plate 230, a third cantilever plate 330, and a bolt passing through and connecting the second cantilever plate 230 and the third cantilever plate 330; when the longitudinal rods 210 of two adjacent inner frames 200 are connected through an airtight connector, the airtight connector includes two corresponding second cantilever plates 230 and a bolt passing through and connecting the two corresponding second cantilever plates 230.

[0049] The prefabricated lightweight airtight structure provided by the embodiment of the present application forms an airtight structure framework by respectively connecting and forming the outer frame 100, the inner frame 200, and the door frame 300 by connecting the frame rod 110, the longitudinal rod 210, the cross rod 220, and the door panel 320, and detachably connecting the frame rod 110, the longitudinal rod 210, the cross rod 220, and the door panel 320 to each other by using airtight connectors. Thus, while improving the transportation and assembly efficiency, the connection airtightness between the outer frame 100, the inner frame 200, and the door frame 300 is effectively improved. It can be used in various fields with high requirements for assembly and airtightness, and can also be used in the field of pressurized buildings in high-altitude areas. Larger-sized pressurized space products can be arranged inside existing buildings, and it can also be applicable to ordinary residences.

[0050] In other alternative embodiments, the prefabricated lightweight airtight structure may further include two or more door frames 300, and each door frame 300 is detachably connected to the outer frame 100.

[0051] In other alternative embodiments, the prefabricated lightweight airtight structure may not include the inner frame 200 and is only composed of the outer frame 100, one or more door frames 300, pressure-bearing airtight doors 310 connected to the door frames 300 one by one, a plurality of sealing plates 400 and a plurality of sealing strips 410. At this time, one or more door frames 300 are connected to one or more surfaces of the outer frame 100. The third bolt through holes 340 and the third bolt blind holes 350 provided on the third cantilever plates 330 among the four door panels 320 of the door frame 300 are respectively bolt-connected to the first bolt blind holes 112 and the first bolt through holes 114 on the first cantilever plates 111 among the four corresponding frame bars 110 of the outer frame 100. The first sealing grooves 113 on the first cantilever plates 111 among the four corresponding frame bars 110 of the outer frame 100 respectively place and press the sealing strips 410 of the four door panels 320 of the door frame 300; A sealing plate 400 is respectively connected to each of the other surfaces of the outer frame 100. Each side of each sealing plate 400 is respectively pressed and fixed to the corresponding inner frame 200 by a corresponding pressing plate 420 connected to the corresponding outer frame 100. The corresponding frame bars 110 on each surface of the outer frame 100 and the corresponding pressing plates 420 are bolt-connected respectively. The first sealing grooves 113 on the first cantilever plates 111 among the corresponding frame bars 110 on each surface of the outer frame 100 respectively place and press the sealing strips 410 of the sealing plates 400.

[0052] In other alternative embodiments, after a door frame 300 is provided on one surface of the outer frame 100, an inner frame 200 may be respectively provided on the other surfaces, and a sealing plate 400 is connected to the inner wall of each inner frame 200. At this time, the four sides of the inner frame 200 are respectively connected to the four frame bars 110 on each surface of the outer frame 100, and a sealing strip 410 is provided between the four sides of the inner frame 200 and the four frame bars 110 on each surface of the outer frame 100.

[0053] In other alternative embodiments, the outer frame 100 can be a cuboid, cube, prismoid or cylinder formed by connecting multiple frame rods 110; when the outer frame 100 is a cylinder, two annular frame rods 110 can be used to form both ends and multiple vertically arranged frame rods 110 are used to connect the two annular frame rods 110. At this time, the two cross bars 220 of the inner frame 200 are arc-shaped, and the sealing plate 400 is also a corresponding arc-shaped plate; when the outer frame 100 is a prismoid, multiple frame rods 110 can be used to connect and form two polygonal end frames, and multiple parallelly arranged frame rods 110 are used to connect the two polygonal end frames. The polygon can be a triangle or a polygon with four or more sides.

[0054] In other alternative embodiments, the sealing plate 400 can also be a light-transmitting glass plate, an opaque stainless steel or other plate profiles that meet the bearing capacity requirements and aesthetic requirements, so as to meet the structural strength, perspective and aesthetic requirements of the prefabricated lightweight airtight structure.

[0055] In this embodiment, bolts are used to connect between bolt through holes, between bolt through holes and bolt blind holes. Only for the convenience of viewing, the bolts are not shown in the drawings of this application.

[0056] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of this application that is claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without making creative efforts fall within the scope of protection of this application.

Claims

1. An assembled lightweight airtight structure, which comprises an outer frame composed of a plurality of frame rods connected together, a door frame composed of a plurality of door panels connected together, a pressure-bearing airtight door correspondingly connected to the door frame, and a plurality of sealing plates detachably connected to the outer frame. The door frame is detachably connected to the outer frame. An airtight cavity is formed by enclosing the outer frame, the door frame, the pressure-bearing airtight door, and the sealing plates. It is characterized in that, Each of the door panels is detachably connected to one of the frame bars through an airtight connector.

2. The prefabricated lightweight airtight structure according to claim 1, wherein At least one inner frame is connected to the door frame. The inner frame is composed of a plurality of inner frame bars connected together. Each of the inner frames is connected to a detachable sealing plate. Each of the inner frame bars is detachably connected to a corresponding one of the frame bars or the door panel through the airtight connector.

3. The prefabricated lightweight airtight structure according to claim 2, characterized in that, The corresponding inner frame bars between two adjacent inner frames are detachably connected through the airtight connector.

4. The prefabricated lightweight airtight structure according to any one of claims 1 to 3, characterized in that, The airtight connector includes two cantilever plates with their sides pressing against each other and a plurality of bolts. The plurality of bolts pass through one of the cantilever plates and are connected to corresponding blind holes on the other cantilever plate. The plurality of bolts then pass through the other cantilever plate and are connected to corresponding blind holes on one of the cantilever plates.

5. The prefabricated lightweight airtight structure according to claim 4, wherein The airtight connector includes at least one sealing strip, and the sealing strip is disposed between the two cantilever plates.

6. The prefabricated lightweight airtight structure according to claim 5, characterized in that, At least one of the cantilever plates is provided with a sealing groove for accommodating the sealing strip.

7. The prefabricated lightweight airtight structure according to claim 2, wherein It further includes at least one pressing plate; the pressing plate is detachably connected to the frame bar or the inner frame bar to press and fix the sealing plate against the corresponding frame bar or inner frame bar.

8. The prefabricated lightweight airtight structure according to claim 7, wherein At least one sealing strip is provided between the frame bar or the inner frame bar and the corresponding sealing plate being pressed against.

9. The prefabricated lightweight airtight structure according to claim 8, characterized in that, The frame bar or the inner frame bar is provided with a strip accommodating groove for accommodating the sealing strip pressing against the corresponding sealing plate.

10. The prefabricated lightweight airtight structure according to claim 1, characterized in that, The outer frame is a cuboid, cube, cylinder or prism formed by connecting a plurality of frame bars.

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