Modular building unit structure and modular building

By using the moving and driving mechanism of the supporting columns in the modular building unit structure, the problem of insufficient variability of the internal space of existing modular buildings is solved, realizing the flexible construction and rapid transformation of large-span spaces and simplifying the construction process.

CN122257518APending Publication Date: 2026-06-23CHINA CONSTR THIRD ENG BUREAU GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
Filing Date
2026-05-18
Publication Date
2026-06-23

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Abstract

The application discloses a modular building unit structure and a modular building. The modular building unit structure comprises four cuboid building frame units, a supporting column movably connected between one straight angle end of each of the building frame units, the four building frame units distributed on the same plane, and the straight angle ends of the building frame units provided with the supporting column gathered and fixedly connected with each other, and the supporting column movable to approach or move away from the straight angle end of the building frame unit. The modular building unit structure and the modular building can remove the supporting column at the intersection of the four building frame units, so that the independent spaces in the four building frame units are connected to form a large space, the reconstruction of a large-span space can be realized on site, the reconstruction mode is simple and convenient, and the reconstruction mode can be adapted to various application scenarios.
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Description

Technical Field

[0001] This application relates to the field of modular building systems, specifically to a modular building unit structure and modular building. Background Technology

[0002] In recent years, with the continuous advancement of industrialized construction and the concept of sustainable development, modular construction, as an efficient and environmentally friendly building form, has gradually received widespread attention. Modular construction divides a building into multiple prefabricated modules, which are manufactured and processed in a factory and then transported to the construction site for rapid assembly. This greatly shortens the construction cycle, reduces the environmental impact of on-site construction, and improves the controllability of building quality.

[0003] However, traditional modular building structures still face several challenges in practical applications. On one hand, the connection methods between modules are often complex, requiring highly skilled labor and significant on-site operational space. This not only increases construction difficulty and cost but also limits the widespread application of modular buildings. On the other hand, existing building schemes often fail to meet the demands for variability in interior space. Once the modules are installed, the internal spatial layout is difficult to adjust flexibly, unable to adapt to changes in different functions. Therefore, as building functions become increasingly complex and diverse, modular buildings need greater flexibility and adaptability to accommodate different usage scenarios and functional requirements. For example, in some commercial or public buildings, it may be necessary to quickly modify the interior space according to actual needs to achieve flexible adjustments to large-span spaces. However, existing modular steel structure building systems still have significant limitations in achieving this spatial variability. Summary of the Invention

[0004] This application provides a modular building unit structure and a modular building to solve the problem that the internal space variability of existing modular building structures is greatly limited and it is difficult to flexibly adjust them to suit different functions.

[0005] The present invention solves the above-mentioned technical problems mainly through the following technical solutions: A modular building unit is provided, comprising four cuboid building frame units. A support column is movably connected between one right-angled corner of each building frame unit. The four building frame units are distributed on the same plane. The right-angled corners of the four building frame units with the support column converge and are connected and fixed to each other. The support column can move closer to or away from the right-angled corner of the building frame unit.

[0006] In some embodiments, the building frame unit includes an upper track beam, a lower track beam, an upper connecting beam, and a lower connecting beam of the same length and arranged in parallel. The upper track beam, lower track beam, upper connecting beam, and lower connecting beam are distributed along the four long sides of the same cuboid. The upper track beam is located above the lower track beam, and the upper connecting beam is located above the lower connecting beam. A crossbeam is vertically fixed between the two ends of the upper track beam and the upper connecting beam, and between the two ends of the lower track beam and the lower connecting beam. A column is vertically fixed between the two ends of the upper connecting beam and the lower connecting beam, and between one end of the upper track beam and the lower track beam. A support column is provided between the other ends of the upper track beam and the lower track beam, and the support column can move along the length direction of the upper track beam and the lower track beam. The other ends of the upper track beams and lower track beams of the four building frame units converge and are connected and fixed to each other.

[0007] In some embodiments, the other ends of the upper and lower track beams are respectively fixed with first corner pieces, and the middle sections of the upper and lower track beams are provided with second corner pieces. The support column can move between the first and second corner pieces, and the other ends of the upper and lower track beams of the four building frame units are connected and fixed to each other through the first corner pieces.

[0008] In some embodiments, the upper and lower track beams are respectively provided with slide rails along their length on the side that is close to each other, and the two ends of the support column are respectively provided with ear seats, and the ear seats are provided with slide grooves that slide with the slide rails.

[0009] In some embodiments, a drive mechanism is also included, which is connected to the support column and is used to drive the support column to move.

[0010] In some embodiments, the drive mechanism includes a flexible rack, a gear rotor, and a drive device. The rack is provided in two sets and is respectively disposed on the side of the upper track beam and the lower track beam that are close to each other. The support column is a hollow column, and through holes for the rack to pass through are provided between the two ends of the support column and the lug. The gear rotor is provided in two sets and is rotatably mounted inside the two ends of the support column and meshes with the two sets of racks respectively. The drive device is provided in two sets and is drivenly connected to the two sets of gear rotors respectively.

[0011] In some embodiments, the ear seat is a hollow seat body, and a slot is opened in the middle area of ​​the end opposite to the support column, which communicates with the internal cavity. The internal cavity of the support column and the slot form a sliding groove with a "T" shaped cross section, and the corresponding sliding rail has a "T" shaped cross section.

[0012] In some embodiments, the ear base is provided with a self-locking structure, and the first corner piece and the second corner piece are respectively provided with locking pieces adapted to the self-locking structure. When the support column moves to the position of the first corner piece or the second corner piece, it locks or unlocks with the locking pieces on the first corner piece or the second corner piece through the self-locking structure.

[0013] In some embodiments, the self-locking structure includes two connecting plates, two first wedge blocks, and two second wedge blocks. The two connecting plates are fixed parallel to each other at one end of the ear seat away from the support column. The two first wedge blocks are respectively vertically fixed to the two connecting plates at one end away from the ear seat. The ends of the two first wedge blocks that are far apart from each other are provided with symmetrically distributed first inclined surfaces. The two second wedge blocks are slidably mounted on the two connecting plates and can slide between the first wedge blocks and the ear seat respectively. The ends of the two second wedge blocks that are far apart from each other are provided with symmetrically distributed second inclined surfaces. The locking member includes two sliders symmetrically distributed in a horizontal plane. The first corner piece and the second corner piece are hollow shell components, and both of them have an opening at one end near the support column. The two sliders are respectively installed on opposite sides inside the first corner piece and the second corner piece by elastic members. The ends of the two sliders that are close to each other are provided with symmetrically distributed third inclined surfaces. The support column is a telescopic column.

[0014] In some embodiments, the support column includes a telescopic device and two first column segments, which are spaced apart and arranged linearly. The telescopic device is fixed between the two first column segments at their closest points, and the ear seats are respectively provided at the two first column segments at their furthest points.

[0015] A modular building is also provided, comprising multiple modular building unit structures.

[0016] The modular building unit structure and the beneficial effects of modular buildings in the embodiments of this application are: By removing the supporting columns at the intersection of the four building frame units, the independent spaces inside the four building frame units can be connected to form a large space. Large-span spaces can be flexibly transformed on-site as needed. The transformation method is simple and convenient, and can meet the needs of diversified and variable building functions. It has important practical significance and broad application prospects. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the following description of the embodiments will be briefly introduced. Obviously, the accompanying drawings described below are only one embodiment of the present invention.

[0018] Figure 1This is a schematic diagram of the modular building unit structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram illustrating the large-span space adjustment achieved by the modular building unit structure provided in this embodiment of the invention; Figure 3 This is a schematic diagram of a building frame unit provided in an embodiment of the present invention when the supporting column is at a right angle. Figure 4 This is a schematic diagram of a building frame unit provided in an embodiment of the present invention after the supporting column has moved away from the right-angle end; Figure 5 This is a top view of yet another embodiment of the modular building unit structure provided in this invention. Figure 6 This is a top view of another embodiment of the modular building unit structure provided in this invention; Figure 7 This is a top view of yet another embodiment of the modular building unit structure provided in this invention. Figure 8 This is a schematic diagram of the cooperation between the lug and the slide rail in the modular building unit structure provided in this embodiment of the invention; Figure 9 This is a schematic diagram of the ear seat in the modular building unit structure provided in this embodiment of the invention; Figure 10 This is a schematic diagram of the structure of the support column and rack in the modular building unit structure provided in the embodiment of the present invention; Figure 11 This is a schematic diagram of the drive mechanism in the modular building unit structure provided in this embodiment of the invention, assembled on the support column. Figure 12 This is a schematic diagram of the self-locking structure in the modular building unit structure provided in the embodiment of the present invention; Figure 13 This is a schematic diagram of the first corner piece or the second corner piece in the modular building unit structure provided in the embodiments of the present invention; Figure 14 This is a schematic diagram of the locking mechanism in the modular building unit structure provided in this embodiment of the invention; Figure 15 This is a state diagram of the self-locking structure and locking components in the modular building unit structure provided in this embodiment of the invention when locked together; Figure 16 This is a state diagram of the second wedge block and the slider temporarily locked together in the modular building unit structure provided in this embodiment of the invention; Figure 17 This is a state diagram of the self-locking structure and locking components unlocking and exiting in the modular building unit structure provided in the embodiments of the present invention; Figure 18This refers to the state of the self-locking structure and lock in the modular building unit structure provided in this embodiment of the invention when they are fully unlocked. Figure 1 ; Figure 19 This refers to the state of the self-locking structure and lock in the modular building unit structure provided in this embodiment of the invention when they are fully unlocked. Figure 2 ; Figure 20 This is a schematic diagram of the second wedge block in the modular building unit structure provided in the embodiment of the present invention. Detailed Implementation

[0019] 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 a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0020] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0024] For details, please refer to Figure 1 and Figure 2 This application provides a modular building unit structure, which mainly includes four cuboid building frame units 1. The four building frame units 1 are spliced ​​together to form a whole. In this whole building structure, one right-angle end of each of the four building frame units 1 is brought together and connected to each other. Furthermore, each building frame unit 1 is movably connected to a support column 111 at the right-angle end where it is brought together with other building frame units 1. That is to say, the support columns 111 of the four building frame units 1 are close to or attached to each other. Generally, the interior of each of the four building frame units 1 forms a cuboid independent small space. The independent small spaces can be connected to each other through the connection points of adjacent building frame units 1, but the whole is still divided into four independent small spaces. When flexible transformation of a large-span space is required, the support column 111 connecting the right-angle corners of the four building frame units 1 is moved away from the right-angle corners of the four building frame units 1. Then, there will be no support column 111 blocking the convergence of the four building frame units 1, and the independent small spaces inside the four will be integrated to form a larger space. There is no column in the center (or at the center) of this space, and the span is larger.

[0025] In some embodiments, see Figure 3 and Figure 4The building frame unit 1 includes four long side beams of equal length, namely, upper track beam 11, lower track beam 12, upper connecting beam 13, and lower connecting beam 14. Upper track beam 11 and lower track beam 12 are located on the same side of building frame unit 1, with upper track beam 11 above lower track beam 12. Upper connecting beam 13 and lower connecting beam 14 are located on the opposite side of building frame unit 1, with upper connecting beam 13 above lower connecting beam 14. The ends of upper track beam 11 and upper connecting beam 13 are connected... A crossbeam 15 is vertically fixed between the two ends of the lower track beam 12 and the lower connecting beam 14. Similarly, a column 16 is vertically fixed between the two ends of the upper connecting beam 13 and the lower connecting beam 14. Likewise, a column 16 is vertically fixed between one end of the upper track beam 11 and the lower track beam 12, and a support column 111 perpendicular to both ends of the upper track beam 11 and the lower track beam 12 is provided between the other ends of the two beams. This support column 111 can move along the length of the upper track beam 11 and the lower track beam 12. During the assembly of the four building frame units 1, the other ends of the upper track beam 11 and the lower track beam 12 converge and are connected and fixed to each other. At this point, the supporting columns 111 of the four building frame units 1 can have two transformation forms: ① The four supporting columns 111 are respectively located between the other ends of the upper track beam 11 and the lower track beam 12 in the corresponding building frame unit 1. In this state, the four supporting columns 111 form a "column" at the position where the four building frame units 1 converge. Due to the limitation of this "column", the internal space of the four building frame units 1 can only exist as four small spaces, and it is impossible to construct a large-span space. ② The four supporting columns 111 are respectively located at the other ends away from the upper track beam 11 and the lower track beam 12. In this state, the four building frame units 1 converge at one end and are close to or attached to each other. That is, there is no "column" at the position where the four building frame units 1 converge. Then the internal space of the four building frame units 1 can construct a large-span space.

[0026] In this embodiment, the four building frame units 1 can be arranged in various ways, including the following: 1) See Figure 5 The four building frame units 1 are arranged in rows and columns, specifically in two rows and two columns. Furthermore, the long sides of the four building frame units 1 extend in the same direction, forming a larger rectangular building.

[0027] 2) See Figure 6 Two of the long sides of the four building frame units 1 are fixed to each other, as shown in Unit A and Unit B in the figure. The short sides of the other two building frame units 1 are fixed to each other, as shown in Unit C and Unit D in the figure. The short sides of Unit A and Unit B are perpendicular to the long sides of Unit C and Unit D.

[0028] 3) See Figure 7 Two of the long sides of the four building frame units 1 are attached to each other, as shown in the figure for units E and F. The side of the short side of another building frame unit 1 is attached to the unit containing the short side of unit E or unit F. The long side of the remaining building frame unit 1 is attached to the unit containing the short side of unit F or unit E, and is also attached to the side of the long side of another building frame unit 1.

[0029] 4) See Figure 1 The four building frame units 1 are arranged in a clockwise or counterclockwise circumferential direction with the right angle where the supporting column 111 is located as the center.

[0030] In some embodiments, the four building frame units 1 can be connected and fixed by means of high-strength bolts or welding between the right-angle ends of adjacent building frame units 1.

[0031] In some embodiments, see Figure 3 and Figure 4 At the other end of the upper track beam 11 and the lower track beam 12 (that is, at the end where the four building frame units 1 converge), a first corner piece 17 is fixed. At the same time, a second corner piece 18 is provided in the middle section of the upper track beam 11 and the lower track beam 12. The support column 111 can move along the length direction of the upper track beam 11 and the lower track beam 12 between the first corner piece 17 and the second corner piece 18. The other ends of the upper track beam 11 and the lower track beam 12 of the four building frame units 1 are connected and fixed to each other through the first corner piece 17. That is, the four first corner pieces 17 above and below are connected and fixed respectively. The connection method includes, but is not limited to, bolts.

[0032] In some embodiments, the upper track beam 11, lower track beam 12, upper connecting beam 13, and lower connecting beam 14 are all steel beams with a C-shaped cross section. One end of the upper track beam 11 and the lower track beam 12, and both ends of the upper connecting beam 13 and the lower connecting beam 14 can be fixed to a first corner piece 17 or a connecting piece similar to the first corner piece 17 by welding or other fixed connection methods. Both ends of the column 16 and both ends of the crossbeam 15 are respectively connected and fixed to the corresponding first corner piece 17. The fixing methods include, but are not limited to, fixing by welding.

[0033] In some embodiments, see Figure 8 The upper track beam 11 and the lower track beam 12 are respectively provided with slide rails 19 along their length on the side that are close to each other. The two ends of the support column 111 are respectively provided with ear seats 112. The ear seats 112 are provided with sliding grooves that slide with the slide rails 19. The support column 111 can slide between the upper and lower opposite first corner pieces 17 and maintain the current position, or it can slide between the upper and lower opposite second corner pieces 18 and maintain the current position.

[0034] It is understandable that the slide rail 19 can be set only between the first corner piece 17 and the second corner piece 18, as long as it meets the sliding trajectory and stroke of the support column 111.

[0035] In some embodiments, see Figure 8 and Figure 9 The ear seat 112 is a hollow seat body. A slot is formed in the middle of the end of the ear seat 112 that communicates with its internal cavity. A T-shaped groove is formed between the internal cavity of the support column 111 and the slot. The corresponding slide rail 19 also has a T-shaped cross-section. When the support column 111 slides, the slide rail 19 enters the groove, allowing the ear seat 112 to slide relative to the slide rail 19.

[0036] More specifically, see Figure 9 The ear seat 112 includes a flat plate 112a and two side plates 112b with an "L" shaped cross section. The flat plate 112a is fixed to the corresponding end of the support column 111. The two side plates 112b are symmetrically fixed to the end of the flat plate 112a away from the support column 111 and are spaced apart. The two side plates 112b are spaced apart and symmetrically distributed along the direction spanning the track 19 (this direction is defined as the second direction, and the length direction of the track 19 is defined as the first direction, which is perpendicular to the second direction). One of the plates of the two side plates 112b is perpendicular to the flat plate 112a, and the other plate is parallel to the flat plate 112a and close to each other, defining a slot. The two side plates 112b and the flat plate 112a define an internal cavity of the ear seat 112. The internal cavity and the slot together form a "T" shaped groove. The slide rail 19 has a T-shaped cross section and one side extends out of the slot and is perpendicularly connected and fixed to the upper track beam 11 or the lower track beam 12.

[0037] In some embodiments, a drive mechanism is also included, which is connected to the support column 111 and is used to drive the support column 111 to move along the length direction of the track 19 (that is, the first direction), so that the support column 111 can move between the upper and lower opposite first corner pieces 17 and between the upper and lower opposite second corner pieces 18.

[0038] In some embodiments, see Figure 8 , Figure 10 , Figure 11The drive mechanism includes a flexible rack 1131, a gear rotor 1132, and a drive unit. Two sets of racks 1131 are provided, respectively located on the sides of the upper track beam 11 and the lower track beam 12 that are close to each other. Both ends of the rack 1131 are fixed, and the fixing points can be the ends of the upper track beam 11 and the lower track beam 12. The support column 111 adopts a hollow column structure design. Furthermore, a through hole (in the figure) is provided between the two ends of the support column 111 and the connection point with the lug 112 for the rack 1131 to pass through. This through hole is along the length of the track 19. Two sets of gear rotors 1132 are provided, which are rotatably mounted in the internal spaces at both ends of the support column 111 or the lug 112. The two sets of gear rotors 1132 are respectively meshed with the two sets of racks 1131. At the same time, two sets of drive devices are provided, and the two sets of drive devices are respectively connected to the two sets of gear rotors 1132. The two sets of drive devices operate synchronously and drive the two sets of gear rotors 1132 to rotate synchronously. During the rotation, the gear rotors 1132 will move along the racks 1131 they mesh with in the first direction.

[0039] The drive device may include a motor and a connecting rod. The motor shaft is movably connected to one end of the connecting rod, and one end of the connecting rod is eccentrically connected to one end of the gear rotor 1132. The motor drives the connecting rod, which in turn drives the gear rotor 1132 to rotate. Alternatively, the drive device may include a motor and a gear transmission system. The motor drives the gear transmission system, which meshes with the gear rotor 1132 to rotate it. The transmission system may include multiple meshing gears with different transmission ratios. This drive device may be mounted in the support column 111.

[0040] In some embodiments, see Figure 9 , Figure 12 The ear base 112 is provided with a self-locking structure. The first corner piece 17 and the second corner piece 18 are respectively provided with locking pieces adapted to the self-locking structure. When the support column 111 moves to the position of the first corner piece 17 or the second corner piece 18, it locks itself with the locking piece on the first corner piece 17 or the second corner piece 18 through the self-locking structure to maintain the current position of the support column 111. Only after the self-locking structure and the locking piece are unlocked can the support column 111 move along the first direction.

[0041] Of course, this self-locking structure can lock or unlock autonomously, and its specific structural design is as follows: See Figure 9 and Figure 12The self-locking structure includes two connecting plates 1141, two first wedge blocks 1142, and two second wedge blocks 1143. The two connecting plates 1141 are fixed parallel to each other at one end of the ear seat 112 away from the support column 111, and the two connecting plates 1141 can be spaced apart along the aforementioned second direction. The two first wedge blocks 1142 are respectively vertically fixed to the ends of the two connecting plates 1141 away from the ear seat 112, and the two first wedge blocks 1142 are spaced apart along the second direction. The ends of the two first wedge blocks 1142 that are far apart from each other are provided with symmetrically distributed first inclined surfaces (the cross-section of each of the two first wedge blocks 1142 is a right-angled trapezoid, and the first inclined surface is this right-angled trapezoid). The two first wedge blocks 1142 have their first inclined surfaces arranged in a figure-eight shape. The two second wedge blocks 1143 are slidably mounted on the two connecting plates 1141 and can slide between the first wedge blocks 1142 and the lug 112 along the length direction of the support column 111 (the length direction is defined as a third direction perpendicular to the first and second directions). The two second wedge blocks 1143 have symmetrically distributed second inclined surfaces at their far ends (the cross-sections of the two second wedge blocks 1143 are right-angled trapezoids, and the second inclined surfaces are the plane containing the hypotenuse of the right-angled trapezoid). Furthermore, the second inclined surfaces of the two second wedge blocks 1143 are arranged in a figure-eight shape. See Figure 13 and Figure 14 The locking mechanism includes two sliders 1144 symmetrically distributed along a second direction in a horizontal plane. The first corner piece 17 and the second corner piece 18 are hollow shell components, specifically square shell components. Both the first corner piece 17 and the second corner piece 18 have openings at their ends near the support post 111 for the self-locking structure to pass through. The two sliders 1144 are respectively installed on opposite sides inside the first corner piece 17 and the second corner piece 18 via elastic members 1145, and are spaced apart in the second direction. The ends of the two sliders 1144 that are close to each other have symmetrically distributed third inclined surfaces. (The cross-sections of the two sliders 1144 are right trapezoids, and the third inclined surface is the plane containing the hypotenuse of the right trapezoid.) Furthermore, the third inclined surfaces of the two sliders 1144 are arranged in a figure-eight shape. The first and second inclined surfaces of the first wedge block 1142 and the second wedge block 1143 located on the same connecting plate 1141 are arranged at an angle (that is, the two inclined surfaces are not parallel, or are arranged in a figure-eight shape). In addition, the third inclined surface on the slider 1144 in the same position is not parallel to the second inclined surface of the second wedge block 1143 in the same position. Meanwhile, the support column 111 is configured as a telescopic column. When self-locking is not achieved, the self-locking structure does not pass through the opening of the first corner piece 17 or the second corner piece 18. When the support column 111 moves between the two first corner pieces 17 or the second corner piece 18 and needs to be locked, the support column 111 extends, and the self-locking structure moves along a third direction through the opening of the first corner piece 17 or the second corner piece 18. During this process, the first inclined surfaces of the two first wedge blocks 1142 contact the two sliders 1144 respectively, squeezing and pushing the two sliders 1144 away from each other in a second direction. At this time, the elastic element 1145 is compressed. After the slider 1144 passes the first wedge block 1142, the elastic element 1145 forces the slider 1144 to move back to its original position, and the slider 1144 will be restricted between the first wedge block 1142 and the second wedge block 1143 (see...). Figure 15 At this point, the support column 111 stops extending, thus achieving a locking engagement between the self-locking structure and the locking element, allowing the support column 111 to stably remain in its current position. When unlocking is required, the support column 111 continues to extend, and the two second wedge blocks 1143 respectively contact the third inclined surfaces of the two sliders 1144, squeezing and pushing the two sliders 1144 away from each other in the second direction until the edges of the two second wedge blocks 1143 pass over the two sliders 1144. The two sliders 1144 will then contact the second inclined surfaces of the two second wedge blocks 1143 at the edge where the elastic element 1145 brings them closer together (i.e., at the edge of the third inclined surface), achieving a temporary "locking" (see [reference]). Figure 16 At this point, the support column 111 stops extending and retracts. The two sliders 1144 cause the second wedge block 1143, which is temporarily "engaged" with it, to slide along the connecting plate 1141, and move the second wedge block 1143 to fit against the first wedge block 1142. After that, the support column 111 continues to retract, and the second inclined surface of the second wedge block 1143 will squeeze and force the two sliders 1144 to move away from each other until the first wedge block 1142 passes over the slider 1144 (see...). Figure 17 ), and exit the opening of the first corner piece 17 or the second corner piece 18 (see Figure 18 and Figure 19 This allows the self-locking structure and locking components to be fully unlocked, at which point the support column 111 can move along the track 19.

[0042] In some embodiments, the elastic element 1145 employs at least one set of springs.

[0043] Understandably, the two ends of the track 19 extend to the first corner piece 17 and the second corner piece 18 near the support post 111, but do not obstruct the self-locking structure from passing through the opening. Furthermore, the portion of the slide rail 19 that extends into the T-shaped groove inside the ear seat 112 allows the slide rail 19 to move relative to the ear seat 112 along the length of the support post 111.

[0044] In some embodiments, see Figure 12 The two connecting plates 1141 of the self-locking structure are respectively vertically fixed to the surface of the groove formed on the other plate surface of the two side plates 112b.

[0045] In some embodiments, see Figure 10 and Figure 11 The support column 111 includes a telescopic device 1111 and two first column sections 1112. The two beam sections 1112 are spaced apart and arranged linearly, specifically along the length of the support column 111. The telescopic device 111 is fixed between the two first column sections 1112 at their closest points, and the two first column sections 1112 at their furthest points are respectively provided with lugs 112. The telescopic device 1111 enables the overall telescopic movement of the support column 111.

[0046] The telescopic device 111 can be a conventional electric jack or other electrically controllable telescopic device.

[0047] In some embodiments, see Figure 12 A first groove c is provided on the connecting plate 1141, extending along the length of the support column 111 (that is, the extending direction is the same as the sliding direction of the second wedge slider 1143). The ends of the two second wedge sliders 1143 that are close to each other are provided with second grooves d extending along their respective sliding directions (see...). Figure 20 In this configuration, one wall of the first groove c penetrates the second groove d of the second wedge slider 1143, so that the second wedge slider 1143 can be partially located in the first groove c and can slide along the extension direction of the first groove c.

[0048] In some embodiments, the building frame unit 1 is a cuboid frame with equal width and height. Specifically, the beams 15, columns 16, and support columns 111 have the same length.

[0049] In some embodiments, the length of the building frame unit 1 is twice its width. Specifically, the lengths of the upper track beam 11, lower track beam 12, upper connecting beam 13, and lower connecting beam 14 are each twice the length of the crossbeam 15.

[0050] In this embodiment, the modular building unit structure is used as a building. Since each building frame unit 1 is a frame structure with a hollow design on the side, wall panels need to be encapsulated in the hollow areas so that the modular building unit structure can form a building with a sealed exterior facade. Doors, windows, etc. can be opened on the wall panels according to actual needs.

[0051] The modular building unit structure in this embodiment can be used as part of a modular building. Specifically, the modular building can include several modular building unit structures. These modular building unit structures are interlocked, meaning that the exposed end of any building frame unit 1 of each modular building unit structure is interlocked with the right-angle facade of the adjacent modular building unit structure, thus forming a large building complex.

[0052] Of course, in modular buildings, because multiple modular building units are interlocked to form a building complex, any two interlocked modular building units have the need to transform from small spaces to large-span spaces. Based on this, each column 16 in a single building frame unit 1 of the modular building unit structure can be set to the same structure as the support column 111, that is, each column 16 is provided with a lug 112 with a self-locking structure at both ends. At the same time, the corresponding ends of the upper track beam 11, lower track beam 12, upper connecting beam 13, and lower connecting beam 14 are provided with locking components and structural components that are the same as the first corner piece 17 or the second corner piece 18. This allows the column 16 to move relative to the upper track beam 11 and lower track beam 12, or relative to the upper connecting beam 13 and lower connecting beam 14, so that the small spaces in multiple clustered building frame units 1 can be "connected" to form a large-span space.

[0053] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0054] The above provides a detailed description of a modular building unit structure and modular building provided by the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for the intermediate technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A modular building unit structure, characterized in that: The building includes four rectangular building frame units (1), and a support column (111) is movably connected between one of the right-angle corners of each building frame unit (1). The four building frame units (1) are distributed on the same plane. The right-angle corners of the support column (111) of the four building frame units (1) are gathered together and fixed to each other. The support column (111) can move closer to or away from the right-angle corner of the building frame unit (1).

2. The modular building unit structure according to claim 1, characterized in that: The building frame unit (1) includes an upper track beam (11), a lower track beam (12), an upper connecting beam (13), and a lower connecting beam (14) of the same length and arranged in parallel. The upper track beam (11), lower track beam (12), upper connecting beam (13), and lower connecting beam (14) are distributed along the four long sides of the same cuboid. The upper track beam (11) is located above the lower track beam (12), and the upper connecting beam (13) is located above the lower connecting beam (14). The two ends of the upper track beam (11) and the upper connecting beam (13), as well as the two ends of the lower track beam (12) and the lower connecting beam (14), are connected. A crossbeam (15) is vertically fixed between each of the upper connecting beam (13) and the lower connecting beam (14), and a column (16) is vertically fixed between each end of the upper track beam (11) and the lower track beam (12). A support column (111) is provided between the other ends of the upper track beam (11) and the lower track beam (12), and the support column (111) can move along the length direction of the upper track beam (11) and the lower track beam (12). The other ends of the upper track beam (11) and the lower track beam (12) of the four building frame units (1) converge and are connected and fixed to each other.

3. The modular building unit structure according to claim 2, characterized in that: The other ends of the upper track beam (11) and the lower track beam (12) are respectively fixed with first corner pieces (17), and the middle sections of the upper track beam (11) and the lower track beam (12) are provided with second corner pieces (18). The support column (111) can move between the first corner piece (17) and the second corner piece (18). The other ends of the upper track beam (11) and the lower track beam (12) of the four building frame units (1) are connected and fixed to each other through the first corner piece (17).

4. The modular building unit structure according to claim 3, characterized in that: The upper track beam (11) and the lower track beam (12) are respectively provided with slide rails (19) along their length directions on the side that are close to each other. The two ends of the support column (111) are respectively provided with ear seats (112), and the ear seats (112) are provided with sliding grooves that slide with the slide rails (19).

5. The modular building unit structure according to claim 4, characterized in that: It also includes a drive mechanism connected to the support column (111) for driving the support column (111) to move.

6. The modular building unit structure according to claim 5, characterized in that: The drive mechanism includes a flexible rack (1131), a gear rotor (1132), and a drive device. The rack (1131) is provided in two sets and is respectively located on the side of the upper track beam (11) and the lower track beam (12) that are close to each other. The support column (111) is a hollow column. The two ends of the support column (111) and the ear seat (112) are provided with through holes for the rack (1131) to pass through. The gear rotor (1132) is provided in two sets and is rotatably mounted inside the two ends of the support column (111) and meshes with the two sets of racks (1131) respectively. The drive device is provided in two sets and is connected to the two sets of gear rotors (1132) respectively.

7. The modular building unit structure according to claim 4, characterized in that: The ear seat (112) is a hollow seat body. A slot is opened in the middle area of ​​the end opposite to the support column (111) and communicates with its internal cavity. The internal cavity of the support column (111) and the slot form a sliding groove with a "T" shaped cross section. The corresponding slide rail (19) has a "T" shaped cross section.

8. The modular building unit structure according to claim 4, characterized in that: The ear base (112) is provided with a self-locking structure. The first corner piece (17) and the second corner piece (18) are respectively provided with locks adapted to the self-locking structure. When the support column (111) moves to the position of the first corner piece (17) or the second corner piece (18), it locks or unlocks with the locks on the first corner piece (17) or the second corner piece (18) through the self-locking structure.

9. The modular building unit structure according to claim 8, characterized in that: The self-locking structure includes two connecting plates (1141), two first wedge blocks (1142), and two second wedge blocks (1143). The two connecting plates (1141) are fixed parallel to each other at one end of the ear seat (112) away from the support column (111). The two first wedge blocks (1142) are respectively vertically fixed to the ends of the two connecting plates (1141) away from the ear seat (112). The ends of the two first wedge blocks (1142) that are far apart from each other are provided with symmetrically distributed first inclined surfaces. The two second wedge blocks (1143) are slidably mounted on the two connecting plates (1141) and can be respectively mounted on the first wedge blocks (1142) and The ear bases (112) slide between each other, and the two second wedge blocks (1143) have symmetrically distributed second inclined surfaces at their ends away from each other; the locking component includes two sliders (1144) symmetrically distributed in the horizontal plane, the first corner piece (17) and the second corner piece (18) are hollow shell components, and both of them have an opening at their ends near the support column (111), the two sliders (1144) are respectively installed on opposite sides inside the first corner piece (17) and the second corner piece (18) through elastic elements (1145), the two sliders (1144) have symmetrically distributed third inclined surfaces at their ends close to each other, and the support column (111) is a telescopic column.

10. The modular building unit structure according to claim 9, characterized in that: The support column (111) includes a telescopic device (1111) and two first columns (1112). The two first columns (1112) are spaced apart and arranged linearly. The telescopic device (111) is fixed between the two first columns (1112) at their close ends. The two first columns (1112) at their far ends are respectively provided with the ear seat (112).

11. A modular building, characterized in that, It includes multiple modular building unit structures as described in any one of claims 1 to 10.