Modular unit, assembled sealed supercharged single cabin body and multi-cabin body

Abstract

The application discloses a module unit, a combined sealed pressurized single-cabin cabin body and a multi-cabin cabin body. The module unit comprises a middle space formed by a pressure-bearing sealing surface and one or more connecting parts connected with adjacent module units. A continuous protrusion and a continuous groove are arranged on the connecting end face of the connecting part. The connecting part comprises a connecting part A and a connecting part B. The protrusion of the connecting part A is outside the end face, and the groove is inside the protrusion. The protrusion of the connecting part B is inside the end face, and the groove is outside the end face. A continuous sealing element is arranged in the groove. The adjacent module units are connected through the insertion of the corresponding protrusions and grooves of the connecting part A and the connecting part B. The protrusion extrudes the sealing element in the groove, and double-layer sealing is formed in the connecting part. The module unit has high splicing efficiency and improved sealing effect.

Description

Technical Field

[0001] This invention relates to pressurized structures, specifically to a modular unit, an assembled sealed pressurized single-chamber body, and a multi-chamber body. Background Technology

[0002] Conventional buildings typically alleviate altitude sickness by simply supplementing oxygen, but cannot eliminate the effects of low pressure. Commercially available pressurization equipment is expensive and has limited functionality, failing to meet long-term living requirements. Pressurized buildings, on the other hand, can restore key indoor environmental indicators from high-altitude areas to those of plains areas, significantly reducing costs compared to pressurization equipment and offering more functional areas to meet long-term living needs. Due to airtightness requirements, pressurized buildings often employ welding to manufacture individual cabins. This presents challenges, such as the inability to transport the manufactured cabins indoors or the fire hazards associated with indoor welding, making them unsuitable for indoor spaces. Furthermore, the size of individual cabins cannot be increased due to limitations in transport vehicles, hindering the ability to accommodate larger-scale applications. Therefore, when larger-scale pressurized buildings are needed, multiple modular pressurized cabins are typically assembled into a pressurized building complex.

[0003] However, the current modular pressurized single-compartment design has the following problems: 1) The splicing efficiency between pressurized single-compartments is slow. In order to ensure the sealing effect, welding is generally used at the splicing point, which further reduces the splicing efficiency; 2) Pressurized single-compartments are generally used as living modules, connecting modules, transition modules, and corridor modules, etc. Therefore, not only are multiple types of pressurized single-compartments required, increasing the manufacturing cost, but connecting modules and transition modules also need to be equipped with pressure-bearing sealing walls. As a result, the steel consumption caused by the expansion connection is huge and there are many pressure-bearing sealing walls, which further increases the cost and affects the popularization and promotion of the product. Summary of the Invention

[0004] The purpose of this invention is to provide a modular unit, a modular sealed pressurized single-compartment body based on the above-mentioned modular unit, and a modular sealed pressurized multi-compartment body based on the above-mentioned modular unit. The modular unit has high splicing efficiency and improves the sealing effect. According to the characteristics of the modular unit, both the single-compartment body and the multi-compartment body can be assembled on-site in any location, can be spliced ​​without welding, and can ensure the sealing after splicing. It meets the requirements of large volume and arbitrary combination, reduces customization costs, requires less steel, and has a lower cost.

[0005] The technical solution adopted in this invention is: A modular unit is provided for splicing together to form a sealed pressurized chamber. The modular unit includes a central space formed by a pressure-bearing sealing surface and one or more connecting portions that are sealed to adjacent modular units. The connecting end face of each connecting portion has continuous protrusions and continuous grooves. Each connecting portion includes connecting portion A and connecting portion B. The protrusion of connecting portion A is on the outer side of the end face, and the groove is on the inner side of the protrusion. The protrusion of connecting portion B is on the inner side of the end face, and the groove is on the outer side of the end face. A continuous sealing element is installed within the groove. Adjacent modular units are connected by the corresponding protrusions and grooves of connecting portions A and B, with the protrusions pressing against the sealing elements within the grooves, forming a double-layer seal at the connecting portion.

[0006] Furthermore, the seal has a cavity, and the groove size is larger than the size of the protrusion and the seal itself.

[0007] Preferably, the groove, protrusion, and seal have rectangular cross-sections, the seal has gaps between it and the sides of the groove when it is not compressed, and the width of the protrusion is narrower than the width of the seal.

[0008] Preferably, the bottom of the groove adopts an inwardly concave arc-shaped surface, and the bottom of the seal adopts an outwardly convex arc-shaped surface that matches the arc-shaped surface at the bottom of the groove. The seal fits against both sides of the groove when not compressed, and an exhaust channel is provided on the outer ring side of the groove.

[0009] Preferably, the bottom of the groove adopts an outwardly convex arc-shaped surface, and the bottom of the seal adopts an inwardly concave arc-shaped surface that matches the arc-shaped surface at the bottom of the groove. The seal fits against both sides of the groove when not compressed, and the outer ring side of the groove is provided with an exhaust channel.

[0010] Furthermore, a flange is provided on the connecting end face of the connecting part, and adjacent module units are connected by flange mating connectors. Through holes for mating connectors are distributed along the flange.

[0011] Furthermore, one or both sides of its top are provided with an extension strip for lateral splicing with the connector, and through holes for mate with the connector are distributed along the extension strip.

[0012] Preferably, the connector uses a combination of bolts and nuts, with the bolts passing through the through holes on both sides and then locked by a nut on one side; or, the connector uses a combination of studs and nuts, with the studs passing through the through holes on both sides and then locked by nuts on both sides.

[0013] A modular, sealed, pressurized single-compartment body is constructed by longitudinally splicing together at least two of the aforementioned modular units; the ends of the body are sealed with pressure-bearing sealing surfaces, and pressure-bearing doors and windows are added to the pressure-bearing sealing surfaces at the required locations; the interior is either interconnected or divided into different functional areas by partitions.

[0014] A modular, sealed, pressurized multi-compartment body is constructed by splicing several modular units longitudinally and laterally. For the type of modular unit, if it participates in the lateral splicing, the aforementioned modular unit with extension strips is used; if it does not participate in the lateral splicing, any of the aforementioned modular units is used. The ends of the body are sealed with pressure-bearing sealing surfaces, and pressure-bearing doors and windows are added to the required pressure-bearing sealing surfaces. The internal spaces in the same longitudinal column are either interconnected or partitioned to divide different functional areas.

[0015] The beneficial effects of this invention are: 1. In this modular unit: First, adjacent modular units are connected by protrusions and grooves, resulting in high connection efficiency. After connection, the protrusion inserts into the groove to compress the sealing element and achieve a seal, thus achieving sealing simultaneously with the connection, resulting in high splicing efficiency. Second, the protrusions and grooves on connecting parts A and B are staggered, forming a double-layer seal with inner and outer layers. Third, the staggered arrangement of protrusions and grooves on connecting parts A and B prevents misalignment, as the protrusions and grooves cannot fit together. Fourth, the staggered arrangement of protrusions and grooves on connecting parts A and B creates a more complex sealing path, forming a labyrinth seal for better sealing performance. Fifth, at each sealing layer, the protrusion inserts into the groove to compress the sealing element. The sealing element forms a three-sided seal with the bottom and two sides of the groove on the outside and a three-sided seal with the bottom and two sides of the protrusion on the inside, ensuring sufficient sealing contact surfaces and improving the sealing effect.

[0016] 2. In the single-compartment and multi-compartment structures: The single-compartment structure adopts a longitudinal splicing structure, with a fixed lateral width and a longitudinal length that can be set according to actual needs. The multi-compartment structure adopts both longitudinal and lateral splicing structures, with both lateral width and longitudinal length that can be set according to actual needs. Both can be assembled on-site in any location. The key advantages are: First, both achieve weld-free splicing and ensure sealing after splicing, thus solving transportation restrictions and indoor welding problems, meeting the requirements for large-scale and flexible combination, and restoring the main indoor environmental indicators of high-altitude areas to those of plains areas; Second, both are spliced ​​from basic modular units, reducing customization costs, eliminating connecting modules and transition modules, reducing the pressure-bearing sealing walls of connecting modules and transition modules, requiring less steel, lowering costs, and facilitating product promotion.

[0017] 3. The seal has a cavity, and the groove size is larger than the size of the protrusion and the seal: First, when the protrusion compresses the elastic seal, the cavity can provide a certain degree of deformation, and the gas inside the cavity can provide a certain degree of rebound, making the elastic seal closer to the inner wall of the groove and the outer surface of the protrusion, forming a surface seal, thereby ensuring the sealing effect at the splice; Second, the groove size is slightly larger than the size of the protrusion and the elastic seal. On the one hand, the protrusion has a small displacement redundancy in the groove, making it easier for the protrusion and groove to align when adjacent module units are spliced ​​longitudinally, avoiding alignment failure caused by manufacturing and installation errors. On the other hand, it provides a certain space for the deformation of the seal, allowing it to fit more closely in contact. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the module unit in this invention.

[0020] Figure 2 This is one embodiment of the modular sealed pressurized single-chamber body in this invention. For ease of observation, the pressure-bearing sealing surface is not shown at its end.

[0021] Figure 3 yes Figure 2 Longitudinal sectional view.

[0022] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0023] Figure 5 yes Figure 4 The split diagram.

[0024] Figure 6 This is a second embodiment of the modular sealed pressurized single-chamber body in this invention. For ease of observation, the pressure-bearing sealing surface is not shown at its end.

[0025] Figure 7 This is one embodiment of the modular sealed pressurized multi-chamber body in this invention. For ease of observation, the pressure-bearing sealing surface is not shown at its end.

[0026] Figure 8 This is a second embodiment of the modular sealed pressurized multi-chamber body in this invention. For ease of observation, the pressure-bearing sealing surface is not shown at the end.

[0027] Figure 9This is Embodiment 3 of the modular sealed pressurized multi-chamber body in this invention. For ease of observation, the pressure-bearing sealing surface is not shown at its end.

[0028] Figure 10 yes Figure 9 Top view.

[0029] Figure 11 This is Embodiment 4 of the modular sealed pressurized multi-chamber body in this invention. For ease of observation, the pressure-bearing sealing surface is not shown at its end.

[0030] Figure 12 This is a second embodiment of the groove and seal in this invention.

[0031] Figure 13 This is the third embodiment of the groove and seal in this invention.

[0032] In the diagram: 1-through hole; 2-flange; 3-extension bar; 4-protrusion; 5-groove; 6-seal; 7-double-ended stud; 8-nut; 9-venting channel. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] The features and performance of this application will be further described in detail below with reference to the embodiments.

[0037] Example 1 This embodiment discloses a modular unit for splicing together to form a sealed pressurized chamber, such as... Figure 1 a) Figures 3 to 5As shown: The module unit includes a central space formed by a pressure-bearing sealing surface and one or more connecting parts that are sealed to adjacent module units; the connecting end face of the connecting part is provided with continuous protrusions 4 and continuous grooves 5, and the connecting part includes connecting part A and connecting part B; the protrusion 4 of the connecting part A is on the outer side of the end face, and the groove 5 is on the inner side of the protrusion 4; the protrusion 4 of the connecting part B is on the inner side of the end face, and the groove 5 is on the outer side of the end face; a continuous sealing element 6 is installed in the groove 5; adjacent module units are connected by the corresponding protrusions 4 and grooves 5 through the connection parts A and B, and the protrusions 4 compress the sealing element 6 in the groove 5 to form a double seal at the connecting part.

[0038] This modular unit is a basic model. In this unit: First, adjacent modular units are connected via protrusions 4 and grooves 5, resulting in high connection efficiency. After connection, protrusion 4 inserts into groove 5 to compress sealing element 6, achieving sealing simultaneously with connection, thus ensuring high splicing efficiency. Second, the protrusions 4 and grooves 5 on connecting parts A and B are staggered, forming a double-layer seal. Third, the staggered arrangement of protrusions 4 and grooves 5 on connecting parts A and B prevents misalignment, effectively preventing incorrect mating. Fourth, the staggered arrangement of protrusions 4 and grooves 5 on connecting parts A and B creates a more complex sealing path, forming a labyrinth seal for better sealing performance. Fifth, at each sealing layer, protrusion 4 inserts into groove 5 to compress sealing element 6. Sealing element 6 forms a three-sided seal with the bottom and two sides of groove 5 on the outside, and a three-sided seal with the bottom and two sides of protrusion 4 on the inside, ensuring sufficient sealing contact surface and improving sealing effect. Furthermore, the pressure-bearing sealing surfaces of the module units can be pre-welded into a whole. Since each module unit is a splicing unit of the sealed pressurized cabin, its size does not need to be designed to be particularly large, and pre-welding will not delay transportation.

[0039] The number of pairs of protrusions 4 and grooves 5 can be determined according to actual needs and effects. In this embodiment, each mating end face uses two pairs of protrusions 4 and grooves 5. Compared with one pair of protrusions 4 and grooves 5, the sealing effect is better. Compared with three or more pairs of protrusions 4 and grooves 5, the size of the mating end face can be reduced, and the increase in manufacturing cost and assembly difficulty can be avoided.

[0040] In order to achieve fast connection, such as Figure 3 As shown, in this embodiment, a flange 2 is provided on the connecting end face of the connecting part. Adjacent module units are connected by mating connectors through the flange 2. Through holes 1 for mating connectors are distributed along the flange 2. For ease of installation and wiring, preferably, as shown... Figure 1As shown in a), the flanges 22 at both ends lift the module unit, which provides space for the installation and operation of the connectors, and facilitates the subsequent routing of cables, optical cables, water pipes, etc.

[0041] In this embodiment, to ensure a good seal at the joint and facilitate connection, the seal 6 has a cavity, and the groove 5 is larger than the protrusion 4 and the seal 6. Therefore: First, when the protrusion 4 compresses the elastic seal 6, the cavity can provide a certain degree of deformation, and the gas inside the cavity can provide a certain degree of rebound, making the elastic seal 6 closer to the inner wall of the groove 5 and the outer surface of the protrusion 4, forming a surface seal, thereby ensuring the sealing effect at the joint; Second, the groove 5 is slightly larger than the protrusion 4 and the elastic seal 6. On the one hand, the protrusion 4 has a small displacement redundancy in the groove 5, making it easier for the protrusion 4 and the groove 5 to connect when adjacent module units are longitudinally spliced, avoiding connection failure caused by manufacturing and installation errors. On the other hand, it provides a certain space for the deformation of the seal 6, allowing it to fit more closely.

[0042] and: like Figure 5 As shown, this is an embodiment of the groove 5 and the seal 6. The groove 5, the protrusion 4, and the seal 6 have rectangular cross-sections. In the uncompressed state, there are gaps between the seal 6 and the sides of the groove 5. The width of the protrusion 4 is narrower than the width of the seal 6. Therefore, when the protrusion 4 extends into the groove 5 and compresses the seal 6, as... Figure 4 As shown, the bottom of the seal 6 fits into the bottom of the groove 5, and the two sides of the seal 6 are bent and fit into the two sides of the groove 5. This configuration is simple to process.

[0043] like Figure 12 As shown, this is a second embodiment of the groove 5 and the seal 6. The bottom of the groove 5 has a concave arc-shaped surface, and the bottom of the seal 6 has a convex arc-shaped surface that matches the bottom arc-shaped surface of the groove 5. The seal 6 fits against both sides of the groove 5 when not compressed. The outer ring side of the groove 5 is provided with an exhaust channel 9. Therefore, the exhaust channel 9 ensures that the seal 6 can be smoothly installed in the groove 5 and fit against the three sides of the groove 5. When the protrusion 4 extends into the groove 5 and compresses the seal 6 to deform, since the seal 6 has no gap at the bottom, its upper part will shrink inward after being compressed and strengthen the internal pressure, thus fitting more tightly against the bottom of the groove 5. Furthermore, the arc-shaped bottom contact will concentrate the pressure to the protruding area at the bottom of the arc-shaped surface, further ensuring the seal.

[0044] like Figure 13As shown, this is a third embodiment of the groove 5 and the seal 6. The bottom of the groove 5 has an outwardly convex arc-shaped surface, and the bottom of the seal 6 has an inwardly concave arc-shaped surface that matches the arc-shaped surface at the bottom of the groove 5. The seal 6 fits against both sides of the groove 5 when not compressed. The outer ring side of the groove 5 is provided with an exhaust channel 9. Therefore, the exhaust channel 9 ensures that the seal 6 can be smoothly installed in the groove 5 and fit against the three sides of the groove 5. When the protrusion 4 extends into the groove 5 and compresses the seal 6 to deform, since the seal 6 has no gap at the bottom, its upper part will contract inward after being compressed and increase the internal pressure, thus fitting more tightly against the bottom of the groove 5. Furthermore, the arc-shaped bottom contact will concentrate the pressure to the protruding area at the top of the arc-shaped surface, further ensuring the seal.

[0045] The sealing effect of Embodiment 2 and Embodiment 1 of groove 5 and seal 6 is better than that of Embodiment 1, but the manufacturing cost will increase.

[0046] Example 2 This embodiment discloses a second type of module unit, such as Figure 1 As shown in b), based on the basic model of Embodiment 1, an extension strip 3 is added to one side of its top for lateral splicing with connectors. The extension strip 3 has through holes 1 distributed along its line for accommodating connectors. This extension strip 3 is small in size, making it convenient to transport, store, and install. It can be pre-installed or installed after it arrives at the site. Since the extension strip 3 is only used for connection and does not require consideration of load-bearing or sealing, it can be placed only at the top, rather than circling the entire perimeter. Furthermore, placing it only at the top makes installation easier.

[0047] Example 3 This embodiment discloses a third type of module unit, such as Figure 1 As shown in c), based on the basic model of Embodiment 1, extension strips 3 are added to both sides of the top for lateral splicing with connectors. Through holes 1 for connectors are distributed along the extension strips 3. These extension strips 3 are small in size, making them convenient to transport, store, and install. They can be pre-installed or installed after arrival. Since the extension strips 3 are only used for connection and do not require consideration of load-bearing or sealing, they can be placed only at the top, rather than circling the entire perimeter. Furthermore, placing them only at the top makes installation easier.

[0048] Of the three modular units described above, the modular units in Embodiment 1 can only be spliced ​​longitudinally, the modular units in Embodiment 2 can be spliced ​​longitudinally and laterally on one side, and the modular units in Embodiment 3 can be spliced ​​longitudinally and laterally on both sides. The type and quantity of modular units can be selected based on the specific form of the sealed pressurized chamber. Of course, for absolute versatility, all modular units from Embodiment 3 could be used, but this would result in waste of materials and construction.

[0049] like Figure 4As shown, the connector uses a combination of double-ended studs 7 and nuts 8. The double-ended studs 7 pass through the through holes 1 on both sides and are then locked by the nuts 8 on both sides. Of course, the connector can also use a combination of bolts and nuts 8, with the bolt passing through the through holes 1 on both sides and being locked by the nut 8 on one side.

[0050] Example 4 This embodiment discloses a modular, sealed, pressurized single-compartment hull, such as... Figures 2 to 5 As shown, it is constructed by longitudinally splicing three modular units from Embodiment 1 (modular units from Embodiments 2 and 3 can also be used, but there will be waste of materials and construction); pressure-bearing sealing surfaces are added to the ends of its cabin, and pressure-bearing doors and windows are added to the pressure-bearing sealing surfaces at the required locations; its interior can be interconnected, or it can be partitioned to divide different functional areas.

[0051] Example 5 This embodiment discloses a second type of modular sealed pressurized single-compartment hull, such as... Figure 6 As shown, it is formed by longitudinally splicing two module units from Embodiment 1 above (module units from Embodiments 2 and 3 can also be used, but there will be waste of materials and construction). Embodiments 4 and 5 disclose a single-compartment body formed by longitudinally splicing three and two module units, respectively. In fact, the number of module units in a single-compartment body can be set as needed and is not limited.

[0052] The installation process for a single-compartment unit is as follows: Based on the dimensions and transport capacity of the single-compartment unit, it can be assembled, partially assembled, or transported to the site in a completely unassembled state. During assembly, the sealing element 6 is first placed into the groove 5, allowing the protrusion 4 to insert into the corresponding groove 5. Then, the flanges 2 on both sides are joined and locked through the through-hole 1 with the connecting parts. After assembly, a pressure-bearing sealing surface is added to the end for sealing, and pressure-bearing doors and windows are installed on the pressure-bearing sealing surface at the required location. Alternatively, pressure-bearing sealing surfaces can be added to the corresponding module units in advance, and pressure-bearing doors and windows can be installed on the pressure-bearing sealing surfaces at the required locations. After assembly, partitions can be set inside according to different functional needs, such as transition areas, bathroom areas, and living areas. Each type of area occupies more than one module unit, and the specific number of module units occupied is set according to actual needs. Alternatively, partitions can be omitted, maintaining internal continuity as a large activity space.

[0053] Example 6 This embodiment discloses a modular, sealed, pressurized multi-compartment hull, such as... Figure 7As shown: The modular units of Embodiment 2 are spliced ​​together in the longitudinal and transverse directions (the modular units of Embodiment 3 can also be used, but there will be waste of materials and construction), in a 2*2 form (3 columns in the longitudinal direction and 3 rows in the transverse direction); the ends of the cabin are sealed with pressure-bearing sealing surfaces, and pressure-bearing doors and windows are added to the pressure-bearing sealing surfaces at the required locations; the internal space in the same longitudinal column can be connected, or partitions can be set to divide different functional areas.

[0054] Example 7 This embodiment discloses a second type of modular, sealed, pressurized multi-compartment hull, such as... Figure 8 As shown: The module units in Embodiments 2 and 3 are spliced ​​together in the longitudinal and transverse directions (or all module units in Embodiment 3 can be used, but there will be waste of materials and construction), in a 3*2 form (3 columns in the longitudinal direction and 2 rows in the transverse direction); the ends of the cabin are sealed with pressure-bearing sealing surfaces, and pressure-bearing doors and windows are added to the pressure-bearing sealing surfaces at the required locations; the internal space in the same longitudinal column can be connected, or partitions can be set to divide different functional areas.

[0055] Example 8 This embodiment discloses a third type of modular, sealed, pressurized multi-compartment hull, such as... Figure 9 and Figure 10 As shown: The module units in Embodiments 2 and 3 are spliced ​​together in the longitudinal and transverse directions (or all module units in Embodiment 3 can be used, but there will be waste of materials and construction), in a 3*3 form (3 columns in the longitudinal direction and 3 rows in the transverse direction); the ends of the cabin are sealed with pressure-bearing sealing surfaces, and pressure-bearing doors and windows are added to the pressure-bearing sealing surfaces at the required locations; the internal space in the same longitudinal column can be connected, or partitions can be set to divide different functional areas.

[0056] Example 9 This embodiment discloses a fourth type of modular, sealed, pressurized multi-compartment hull, such as... Figure 11 As shown: The module units in Embodiments 1, 2, and 3 are spliced ​​together longitudinally and laterally (wherein, the module units in Embodiment 1 can also be replaced with the module units in Embodiments 2 or 3, and the module units in Embodiment 2 can also be replaced with the module units in Embodiment 3, but there will be waste of materials and construction). There are 3 columns in the longitudinal direction, with 3 module units in the first column, 2 module units in the second column, and 1 module unit in the third column; the ends of the cabin are sealed with pressure-bearing sealing surfaces, and pressure-bearing doors and windows are added to the pressure-bearing sealing surfaces at the required locations; the internal space in the same longitudinal column can be connected, or partitions can be set to divide different functional areas.

[0057] Examples 6 to 9 disclose various regular and irregular multi-compartment bodies. Since they can be freely expanded longitudinally and laterally, the specific form of the multi-compartment body is not limited according to the actual design. Among them, the module units that do not participate in the lateral splicing can be without, have on one side, or have on both sides the expansion strip 3. The module units that are laterally spliced ​​on only one side can be with one side or both sides the expansion strip 3. The module units that are laterally spliced ​​on both sides can only be with both sides the expansion strip 3. In order to avoid material and construction waste, the module units that do not participate in the lateral splicing preferably do not have the expansion strip 3, and the module units that are laterally spliced ​​on only one side preferably have the expansion strip 3 on one side.

[0058] The installation process for multi-compartment modules is as follows: depending on the size and transport capacity of the multi-compartment module, the modules can be spliced ​​together or transported to the site in a completely unspliced ​​state. When splicing longitudinally, the sealing element 6 is first placed into the groove 5, and the protrusion 4 is inserted into the corresponding groove 5. Then, the flanges 2 on both sides are joined together and locked through the through hole 1 with the connector. When splicing laterally, the extension strips 3 on both sides are joined together and locked through the through hole 1 with the connector. A row of longitudinal module units can be spliced ​​first, and then the remaining rows of module units can be spliced ​​sequentially. Alternatively, a row of transverse module units can be spliced ​​first, and then the remaining module units can be spliced ​​longitudinally after the current module unit. After assembly, pressure-bearing sealing surfaces are added to the ends for sealing, and pressure-bearing doors and windows are installed on the pressure-bearing sealing surfaces at the required locations. Alternatively, pressure-bearing sealing surfaces can be added to the corresponding module units in advance, and pressure-bearing doors and windows can be installed on the pressure-bearing sealing surfaces at the required locations. After assembly, partitions can be set inside the same longitudinal column according to the needs of different functions, such as setting transition areas, bathroom areas, living areas, etc. Each type of area occupies more than one module unit, and the specific number of module units occupied is set according to actual needs. Alternatively, partitions can be not set inside the same longitudinal column to maintain internal continuity and serve as a large activity space.

[0059] In both the single-compartment and multi-compartment configurations: the single-compartment uses a longitudinal splicing structure with a fixed lateral width and adjustable longitudinal length; the multi-compartment uses both longitudinal and lateral splicing structures, with both lateral width and longitudinal length adjustable as needed. Both can be assembled on-site in any location. Crucially, firstly, both achieve weld-free splicing and ensure sealing after assembly, thus solving transportation limitations and indoor welding issues. This meets the requirements for large-scale, flexible assembly and can restore key indoor environmental indicators from high-altitude areas to those of plains areas. Secondly, both are constructed from basic modular units, reducing customization costs, eliminating connecting and transition modules, and minimizing the need for pressure-bearing and sealing walls. This requires less steel, resulting in lower costs and facilitating product promotion.

[0060] 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 the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A modular unit, characterized in that: For use in assembling sealed pressurized chambers, modular units include a central space formed by a pressure-bearing sealing surface and one or more connecting parts that are sealed to adjacent modular units. The connecting end faces of the connecting parts are provided with continuous protrusions and continuous grooves. Each connecting part includes connecting part A and connecting part B. The protrusion of connecting part A is on the outer side of the end face, and the groove is on the inner side of the protrusion. The protrusion of connecting part B is on the inner side of the end face, and the groove is on the outer side of the end face. Continuous sealing elements are installed within the grooves. Adjacent modular units are connected via the insertion of corresponding protrusions and grooves through connecting parts A and B. The protrusions compress the sealing elements within the grooves, forming a double-layer seal at the connecting parts. The sealing elements have cavities, and the groove dimensions are larger than the protrusion and sealing element dimensions. The groove bottom has an inwardly concave arc-shaped surface, and the seal bottom has an outwardly convex arc-shaped surface that matches the arc-shaped surface at the bottom of the groove; or the groove bottom has an outwardly convex arc-shaped surface, and the seal bottom has an inwardly concave arc-shaped surface that matches the arc-shaped surface at the bottom of the groove. When the seal is not compressed, it fits against both sides of the groove. The outer ring of the groove has an exhaust channel. There is no gap at the bottom of the seal. When the upper part of the seal is compressed, it will shrink inward and increase the internal pressure, fitting tightly against the bottom of the groove. The arc-shaped bottom contact concentrates the pressure to the protruding area at the bottom of the arc-shaped surface.

2. The module unit as described in claim 1, characterized in that: The groove, protrusion, and seal have rectangular cross-sections. When the seal is not compressed, there is a gap between it and the sides of the groove. The width of the protrusion is narrower than the width of the seal.

3. The module unit as described in claim 1, characterized in that: A flange is provided on the connecting end face of the connecting part, and adjacent module units are connected by flange mating connectors. Through holes for mating connectors are distributed along the flange.

4. The module unit as described in claim 1, characterized in that: It has an extension strip on one or both sides of its top for lateral splicing with the connector, and through holes for mate with the connector are distributed along the extension strip.

5. The module unit as described in claim 3 or 4, characterized in that: The connector uses a combination of bolts and nuts, with the bolts passing through through holes on both sides and then locked by a nut on one side; or, the connector uses a combination of studs and nuts, with the studs passing through through holes on both sides and then locked by nuts on both sides.

6. A modular, sealed, pressurized single-compartment hull, characterized in that: Its cabin is constructed by longitudinally splicing at least two modular units as described in any one of claims 1 to 5; the ends of its cabin are sealed with pressure-bearing sealing surfaces, and pressure-bearing doors and windows are added to the pressure-bearing sealing surfaces at the required locations; its interior is either interconnected or divided into different functional areas by partitions.

7. A modular, sealed, pressurized multi-compartment hull, characterized in that: Its cabin is composed of several modular units spliced ​​together longitudinally and laterally; for the type of modular units, the modular units as described in claim 4 are used for lateral splicing; pressure-bearing sealing surfaces are added to the ends of its cabin, and pressure-bearing doors and windows are added to the pressure-bearing sealing surfaces at the required locations; the internal spaces in the same longitudinal column are connected or partitioned to divide different functional areas.

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