CN113235821A

CN113235821A - Modular building based on BIM and construction method thereof

Info

Publication number: CN113235821A
Application number: CN202110732007.2A
Authority: CN
Inventors: 何英
Original assignee: Huizhou Xiwu Network Technology Co ltd
Current assignee: Guangdong Zhongyuanxi Construction Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-08-10
Anticipated expiration: 2041-06-30
Also published as: CN113235821B

Abstract

The invention relates to a modular building based on BIM and a construction method thereof. The BIM-based modular building comprises a plurality of supporting structures and a top surface structure, wherein the supporting structures are respectively connected with the top surface structure to provide support for the top surface structure; the top surface structure is formed by splicing a plurality of direct trusses and a plurality of transfer trusses, and the supporting structure is formed by sequentially splicing a plurality of direct trusses; two adjacent direct trusses are detachably spliced through a splicing assembly, or the direct trusses are detachably spliced with the transit truss through the splicing assembly; the splicing assembly comprises a splicing male buckle and a splicing female groove; the splicing male buckle is detachably spliced with the splicing female groove. According to the modular building based on the BIM and the construction method thereof disclosed by the invention, the truss is connected in a splicing manner, so that the splicing and disassembling steps of the truss are simplified, the time for installing and disassembling the modular building is shortened, and the efficiency and convenience for building the modular building are improved.

Description

Modular building based on BIM and construction method thereof

Technical Field

The invention relates to the technical field of building structures, in particular to a modular building based on BIM and a construction method thereof.

Background

Building Information Modeling (BIM), is a computer tool widely used in architecture, engineering and civil engineering. The BIM provides a building engineering information base by establishing a virtual building engineering three-dimensional model and utilizing a digital technology, and realizes the management of the digital technology to an engineering system. By means of the three-dimensional model containing the construction engineering information, the information integration degree of the construction engineering is greatly improved, the working efficiency is effectively improved, the resources are saved, and the cost is reduced.

The truss is a plane or space structure which is composed of straight rods and generally provided with triangular units, and the truss rod pieces mainly bear axial tension or pressure, so that the strength of materials can be fully utilized, the material can be saved compared with a real web beam when the span is large, the self weight is reduced, and the rigidity is increased.

In practical application, the truss is not only applied to the industrial field, but also often used for building buildings such as stages and exhibition platforms. In the prior art, a plurality of trusses are usually connected by adopting a bolt connection mode for building a building, so that an integral truss platform is formed.

The existing building built by adopting the truss is connected by the bolts, and when the building is built, a constructor needs to spend a large amount of time for installing the bolts. After the construction completes its work mission, when the construction needs to be disassembled, the construction worker again takes a lot of time to disassemble the bolts. Therefore, the building is built in a bolt connection mode, and the efficiency is very low. Moreover, construction workers often need to install or remove bolts in or from high altitudes, and the working angle of the construction workers in the high altitudes is very limited, so that the assembly and disassembly of certain bolts are very difficult, and even the bolts cannot be well screwed, thereby affecting the stability and safety of buildings. If the construction worker strives for screwing or disassembling the bolt by probing out the body and the like, the personal safety of the construction worker is not well guaranteed.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a modular building based on BIM and a construction method thereof.

The purpose of the invention is realized by the following technical scheme:

a BIM-based modular building comprising a plurality of support structures and a roof structure, the plurality of support structures being connected to and supporting the roof structure respectively; the top surface structure is formed by splicing a plurality of direct trusses and a plurality of transfer trusses, and the supporting structure is formed by sequentially splicing a plurality of direct trusses; two adjacent direct trusses are detachably spliced through a splicing assembly, or the direct trusses are detachably spliced with the transit truss through the splicing assembly;

the splicing assembly comprises a splicing male buckle and a splicing female groove; the splicing male buckle is detachably spliced with the splicing female groove.

In one embodiment, the male splice buckle comprises a first plug-in part connected with the direct truss or the transit truss; the splicing female slot comprises a second inserting part, and the second inserting part is connected with the direct truss or the transfer truss;

the splicing male buckle also comprises an inserting cylinder and more than one locking elastic sheet; the connecting end of the locking elastic sheet is connected with the inner wall of the plug-in cylinder, and the free end of the locking elastic sheet is provided with a first ratchet groove; the first ratchet groove protrudes out of the outer wall of the plug cylinder; the splicing female groove further comprises an inserting groove, a second ratchet groove is formed in the inner wall of the inserting groove, and the second ratchet groove is meshed with or separated from the first ratchet groove;

the concatenation pin thread still includes: the device comprises a first unlocking knob, a first unlocking rotary disc, a second unlocking knob and a second unlocking rotary disc; the first unlocking knob and the second unlocking knob are respectively rotatably sleeved on the plug-in cylinder, and the first unlocking knob and the second unlocking knob are sequentially arranged from the position close to the free end to the position close to the connecting end along the extension direction of the locking elastic sheet;

the first unlocking rotary table and the second unlocking rotary table are respectively and rotatably arranged in the plug cylinder; the first unlocking rotary disc penetrates through the wall of the insertion cylinder to be connected with the first unlocking knob, and the second unlocking rotary disc penetrates through the wall of the insertion cylinder to be connected with the second unlocking knob;

the first unlocking rotary disc is provided with more than one abutting lug boss and more than one avoiding groove, and the abutting lug bosses and the avoiding grooves are respectively in one-to-one correspondence with the locking elastic sheets; the locking elastic sheet abuts against the abutting lug boss or is accommodated in the avoiding groove; the second unlocking rotary table is provided with more than one arc-shaped unlocking extrusion strips, and the arc-shaped unlocking extrusion strips correspond to the locking elastic sheets one by one and are mutually abutted;

the top surface of the first unlocking rotary disc is provided with a movable pressing disc, the bottom surface of the second unlocking rotary disc is provided with a fixed pressing disc, and the fixed pressing disc and the movable pressing disc are mutually abutted.

In one embodiment, the splicing male buckle further comprises a reset torsion spring and a support spring, and the second unlocking turntable is connected with the inserting cylinder through the reset torsion spring; the supporting spring is sleeved with the movable pressing disc and provides an elastic force for the movable pressing disc so that the movable pressing disc has a tendency of approaching the fixed pressing disc.

In one embodiment, the insertion tube is provided with more than one first through groove, and the first through grooves correspond to the first ratchet grooves one to one;

the first unlocking turntable is also provided with more than one first connecting part, and the second unlocking turntable is also provided with more than one second connecting part;

the inserting cylinder is provided with more than one second through groove and more than one third through groove, the second through grooves correspond to the first connecting portions one by one, and the third through grooves correspond to the second connecting portions one by one.

In one embodiment, the torsion force of the return torsion spring is greater than that of the holding spring.

In one embodiment, one side of the abutting boss is communicated with the avoiding groove, and the other side of the abutting boss is provided with a blocking convex part; the locking elastic sheets correspond to the blocking convex parts one by one and are abutted or separated.

In one embodiment, the number of the locking elastic sheets is multiple, and the locking elastic sheets are arranged at equal intervals along the inner wall of the insertion cylinder.

In one embodiment, the first unlocking dial is keyed to the movable pressure holding dial.

In one embodiment, the direct truss is provided with a plurality of first locking accommodating grooves, and the adapter truss is provided with a plurality of second locking accommodating grooves; the first inserting part and the second inserting part are both provided with screw holes;

the first locking and accommodating groove is inserted into the first insertion part or the second insertion part and locked by a screw; the second locking and accommodating groove is inserted into the first insertion part or the second insertion part and locked by a screw.

The invention also discloses a construction method of the modular building based on the BIM. Wherein, the installation process of the modular building based on BIM is as follows:

connecting the splicing male buckle or the splicing female groove with the direct truss;

connecting the splicing male buckle or the splicing female groove with the transfer truss;

splicing the splicing male buckles and the splicing female grooves in a one-to-one correspondence mode to enable the two direct trusses to be spliced with each other or enable the direct trusses and the transfer trusses to be spliced with each other;

wherein, the disassembly process of the modular building based on BIM is as follows:

the splicing male buckles and the splicing female grooves are detached one by one, so that the two direct trusses spliced with each other are detached from each other or the direct trusses and the adapter trusses spliced with each other are detached from each other;

detaching the splicing male buckle from the direct truss or the adapting truss;

and detaching the splicing female groove from the direct truss or the adapter truss.

According to the modular building based on the BIM and the construction method thereof, the truss is connected in a splicing manner, so that the steps of splicing and disassembling the truss are simplified, the time for assembling and disassembling the modular building is shortened, and the efficiency and convenience for building the modular building are improved; and the stability is high and the safety is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a truss platform of the prior art;

FIG. 2 is a schematic diagram of the splicing of the direct truss with the male plug-in buckle and the female plug-in groove and the splicing of the transfer truss with the male plug-in buckle and the female plug-in groove;

FIG. 3 is a schematic illustration of the splicing of two direct trusses;

FIG. 4 is a schematic view of the male buckle and the female groove in FIG. 2 in a separated state;

FIG. 5 is a partial schematic view of the splicing state of the male buckle and the female slot in FIG. 2;

FIG. 6 is a partial cross-sectional view of the male splice buckle shown in FIG. 5 in a state of being spliced with the female splice groove;

FIG. 7 is a partial schematic view of the male splice buckle shown in FIG. 5;

FIG. 8 is a schematic view of the male snap shown in FIG. 7 with the first mating part and the mating barrel removed;

FIG. 9 is an exploded view of the split pin of FIG. 4;

FIG. 10 is a partial mating view of the male splice closure of FIG. 9;

FIG. 11 is a schematic view of the second unlocking knob, the second unlocking dial and the return torsion spring shown in FIG. 10;

fig. 12 is a schematic structural view of the locking spring of the male snap shown in fig. 9.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the present invention discloses a BIM-based modular building 100, which includes a plurality of supporting structures 110 and a roof structure 120, wherein the plurality of supporting structures 110 are respectively connected to the roof structure 120 and provide support for the roof structure 120. As shown in fig. 1 and 2, the roof structure 120 is formed by splicing a plurality of direct trusses 10 and a plurality of intermediate trusses 20, and the support structure 110 is formed by sequentially splicing a plurality of direct trusses 10. Two adjacent direct trusses 10 are detachably spliced through the splicing assembly 30, or the direct trusses 10 are detachably spliced with the transit truss 20 through the splicing assembly 30. The splicing component 30 comprises a splicing male buckle 200 and a splicing female slot 300; the male splicing buckle 200 is detachably spliced with the female splicing groove 300.

As shown in fig. 3 and 4, in the present embodiment, the male connection buckle 200 includes a first connection portion 210, and the first connection portion 210 is connected to the direct truss 10 or the adapting truss 20; the female splicing chute 300 includes a second insertion part 310, and the second insertion part 310 is connected to the direct truss 10 or the transit truss 20.

As shown in fig. 4, 5 and 6, the male snap fastener 200 further includes an insertion cylinder 220 and at least one locking spring piece 230. The connecting end of the locking elastic sheet 230 is connected with the inner wall of the inserting tube 220, and the free end of the locking elastic sheet 230 is provided with a first ratchet groove 231; the first ratchet grooves 231 protrude from the outer wall of the socket barrel 220. The splicing female slot 300 further comprises an insertion slot 320, wherein a second ratchet slot 321 is formed in the inner wall of the insertion slot 320, and the second ratchet slot 321 is engaged with or separated from the first ratchet slot 231.

As shown in fig. 7 and 8, the male snap 200 further includes: a first unlocking knob 240, a first unlocking dial 250, a second unlocking knob 260, and a second unlocking dial 270. The first unlocking rotating disk 250 and the second unlocking rotating disk 270 are sequentially arranged from the free end to the connecting end along the extending direction of the locking elastic sheet 230. That is, the first unlocking knob 240 is closer to the first ratchet groove 231 than the second unlocking knob 260. If the positions of the first unlocking rotary table 250 and the second unlocking rotary table 270 are exchanged, the second unlocking knob 260 corresponding to the second unlocking rotary table 270 is directly rotated to unlock the splicing assembly 30, and the two-stage unlocking effect of the invention cannot be achieved.

As shown in fig. 6, the first unlocking dial 250 and the second unlocking dial 270 are respectively rotatably disposed in the insertion tube 220. The first unlocking dial 250 is connected with the first unlocking knob 240 through the wall of the insertion tube 220, and the second unlocking dial 270 is connected with the second unlocking knob 260 through the wall of the insertion tube 220.

As shown in fig. 8, 10 and 11, the first unlocking turntable 250 is provided with more than one abutting boss 251 and more than one avoiding groove 252, and the abutting boss 251 and the avoiding groove 252 correspond to the locking elastic pieces 230 one to one. Moreover, the locking elastic piece 230 abuts against the abutting boss 251 or is accommodated in the avoiding groove 252. The second unlocking rotary disc 270 is provided with more than one arc-shaped unlocking extrusion strips 271, and the arc-shaped unlocking extrusion strips 271 correspond to the locking elastic sheets 230 one by one and are abutted against each other. Specifically, one side of the abutting boss 251 is communicated with the avoiding groove 252, and the other side is provided with a blocking convex part 253; the locking elastic pieces 230 correspond to the blocking protrusions 253 one by one and abut against or separate from each other.

As shown in fig. 10, the top surface of the first unlocking dial 250 is provided with a movable pressure plate 254, the bottom surface of the second unlocking dial 270 is provided with a fixed pressure plate 272, and the fixed pressure plate 272 and the movable pressure plate 254 are abutted against each other. In a preferred embodiment, the movable clamping plate 254 and the fixed clamping plate 272 are provided with anti-slip structures such as anti-slip particles and anti-slip grooves; the friction between the fixed clamping disk 272 and the movable clamping disk 254 is increased by the anti-slip structure. As a preferred embodiment, the first unlocking dial 250 is keyed with a movable pressure holding dial 254.

As shown in fig. 6 and 9, in particular, the male snap 200 further includes a return torsion spring 280 and a holding spring 290, and the second unlocking rotating disc 270 is connected to the insertion cylinder 220 through the return torsion spring 280. The holding spring 290 is sleeved with the movable holding plate 254, and the holding spring 290 provides an elastic force for the movable holding plate 254 to make the movable holding plate 254 approach the fixed holding plate 272. In a preferred embodiment, the torsion force of the return torsion spring 280 is greater than the torsion force of the retaining spring 290. In practical applications, the torsion of the return torsion spring 280 is much greater than the torsion of the holding spring 290, so that the first unlocking turntable 250 cannot overcome the torsion of the return torsion spring 280 to drive the second unlocking turntable 270 to rotate together; on the contrary, when the second unlocking dial 270 rotates, the first unlocking dial 250 can be driven to move and rotate against the torsion of the holding spring 290.

As shown in fig. 9, in detail, the insertion tube 220 is provided with more than one first through groove 221, and the first through grooves 221 correspond to the first ratchet grooves 231 one by one. The first ratchet groove 231 penetrates the first through groove 221 and protrudes out of the outer wall of the socket barrel 220.

As shown in fig. 6, 9, 10 and 11, the first unlocking dial 250 is further provided with one or more first connecting portions 255, and the second unlocking dial 270 is further provided with one or more second connecting portions 273. The insertion cylinder 220 is provided with more than one second through groove 222 and more than one third through groove 223, the second through groove 222 corresponds to the first connection part 255 one by one, and the third through groove 223 corresponds to the second connection part 273 one by one. In this embodiment, the first connection portion 255 passes through the second through groove 222 and then is connected to the first unlocking knob 240. The second connecting portion 273 passes through the third through groove 223 and then is connected to the second unlocking knob 260.

As shown in fig. 8, as a preferred embodiment, the number of the locking resilient pieces 230 is multiple, and the multiple locking resilient pieces 230 are disposed at equal intervals along the inner wall of the plug cylinder 220.

As shown in fig. 2 and 4, in particular, the direct truss 10 is provided with a plurality of first locking receiving slots (not shown), and the adapter truss 20 is provided with a plurality of second locking receiving slots 201; the first insertion part 210 and the second insertion part 310 are both provided with screw holes 301. The first locking receiving groove is inserted into the first inserting-connecting part 210 or the second inserting-connecting part 310 and locked by a screw. The second locking receiving groove 201 is inserted into the first insertion part 210 or the second insertion part 310 and locked by the screw 101.

As shown in fig. 12, in particular, the locking elastic piece 230 is further provided with a clamping groove 232, and the arc-shaped unlocking extrusion strip 271 is slidably disposed along the clamping groove 232. As shown in fig. 8, the catching groove 232 extends along the axial direction of the locking spring 230 and the depth of the catching groove 232 is gradually deepened. The depth of the clamping groove 232 is gradually deepened to match the arc-shaped structure of the arc-shaped unlocking extrusion strip 271, so that the arc-shaped unlocking extrusion strip 271 is always kept to be tightly attached to the groove bottom of the clamping groove 232, the arc-shaped unlocking extrusion strip 271 is further ensured to evenly and stably extrude the locking elastic sheet 230, and therefore the first ratchet groove 231 is ensured to be stably kept engaged with the second ratchet groove 321 or completely separated from the second ratchet groove 321.

Referring to fig. 1 to 12, the present invention also discloses a construction method of a modular building based on BIM. The installation process of the modular building based on the BIM is as follows:

connecting the splicing male buckle 200 or the splicing female slot 300 with the direct truss 10;

connecting the splicing male buckle 200 or the splicing female slot 300 with the transfer truss 20;

by splicing the male splicing buckles 200 and the female splicing grooves 300 in a one-to-one correspondence manner, two direct trusses 10 are spliced to each other or the direct truss 10 and the transit truss 20 are spliced to each other.

Specifically, when the male splicing buckle 200 or the female splicing groove 300 is connected to the direct truss 10, the first locking receiving grooves at the same end of the direct truss 10 may be uniformly connected to the male splicing buckle 200, and the first locking receiving grooves at the other end may be uniformly connected to the female splicing groove 300; of course, the first locking receiving grooves at the same end of the direct truss 10 may be mixed-jointed with the male buckle 200 and the female jointing groove 300;

specifically, when the male connection buckle 200 or the female connection groove 300 is connected to the adapter truss 20, the second locking receiving grooves 201 on the same surface of the adapter truss 20 may be uniformly connected to the male connection buckle 200 or the female connection groove 300 or the male connection buckle 200 and the female connection groove 300;

in the actual installation and construction process of the modular building 100, the splicing mode and the splicing number between the direct truss 10 and the transit truss 20 are determined according to the size requirements such as height, width and the like required by the modular building 100; for example, in splicing the support structures 110 of the modular building 100, a plurality of direct trusses 10 may be spliced sequentially; when the top surface structure 120 is spliced, the direct truss 10 and the transfer truss 20 can be spliced alternately, so that the grid-type top surface structure 120 is spliced;

when the direct truss 10 and the direct truss 10 or the direct truss 10 and the transit truss 20 are spliced, the splicing male buckles 200 and the splicing female grooves 300 need to be spliced in a one-to-one correspondence manner; before the splicing male buckle 200 is spliced with the splicing female slot 300, the splicing male buckle 200 is in an initial unlocking state; in the initial unlocking state, the abutting boss 251 abuts against the locking spring 230, and the first ratchet groove 231 of the locking spring 230 passes through the first through groove 221 under the abutting action of the abutting boss 251 and protrudes out of the outer wall of the plug-in cylinder 220;

when the splicing male buckle 200 is spliced with the splicing female slot 300, the insertion cylinder 220 of the splicing male buckle 200 is inserted into the insertion slot 320 of the splicing female slot 300; in this process, the first ratchet groove 231 contacts the second ratchet groove 321 first, and the locking spring 230 deforms under the abutting action of the second ratchet groove 321 and retracts the first ratchet groove 231 into the inserting cylinder 220; when the plug-in barrel 220 is plugged in place, the first ratchet groove 231 and the second ratchet groove 321 of the locking elastic sheet 230 are firmly engaged under the abutting action of the abutting boss 251; when the first ratchet groove 231 and the second ratchet groove 321 are firmly engaged, namely the splicing of the splicing male buckle 200 and the splicing female groove 300 is completed, the splicing male buckle 200 is in a splicing locking state; in the splicing and locking state, even if the plugging cylinder 220 of the splicing male buckle 200 is pulled out from the splicing groove with force, the plugging cylinder 220 cannot be pulled out from the splicing groove;

in summary, the splicing of the male buckle 200 and the female splicing groove 300 can be realized only by applying force to the male splicing buckle 200 to insert the insertion cylinder 220 into the insertion groove 320, and the operation is very simple and efficient;

the disassembly process of the modular building based on the BIM is as follows:

detaching the male splicing buckles 200 and the female splicing grooves 300 one by one, so that the two direct trusses 10 spliced with each other are detached from each other or the direct trusses 10 and the transit trusses 20 spliced with each other are detached from each other;

detaching the splicing male buckle 200 from the direct truss 10 or the transit truss 20;

the splicing parent trough 300 is detached from the direct girder 10 or the transit girder 20.

Specifically, when the male splicing buckle 200 is detached from the female splicing groove 300, first, the first unlocking knob 240 is rotated, and the first unlocking knob 240 drives the first unlocking turntable 250 to rotate together; when the first unlocking turntable 250 rotates, the abutting boss 251 is gradually far away from the locking elastic sheet 230, and the avoiding groove 252 is gradually close to the locking elastic sheet 230; when the locking elastic sheet 230 is clamped and accommodated in the avoiding groove 252, the first-stage unlocking is realized, and the first unlocking knob 240 stops rotating;

then, the second unlocking knob 260 is rotated, and the second unlocking knob 260 drives the second unlocking turntable 270 to rotate together; when the first unlocking turntable 250 rotates, the arc-shaped unlocking extrusion strip 271 continuously extrudes the locking elastic sheet 230, so that the locking elastic sheet 230 is continuously deformed, the first ratchet groove 231 is continuously retracted into the inserting cylinder 220, and the first ratchet groove 231 is gradually separated from the second ratchet groove 321; the secondary unlocking is achieved when the first ratchet groove 231 is completely separated from the second ratchet groove 321; at this time, the inserting cylinder 220 can be pulled out from the inserting groove 320, so that the splicing male buckle 200 is separated from the splicing female groove 300;

it should be particularly noted that, in order to facilitate the next installation of the modular building, the splicing male buckle 200 needs to be automatically reset to the initial unlocking state after the splicing male buckle 200 is separated from the splicing female slot 300, so that when the splicing male buckle 200 and the splicing female slot 300 are spliced next time, the splicing male buckle 200 only needs to be forced to insert the insertion tube 220 into the insertion slot 320, and the operation is very simple and efficient;

in order to solve the problem of automatic resetting of the splicing pin 200 to the initial unlocking state, the splicing pin 200 of the invention is provided with a reset torsion spring 280 and a holding spring 290; the top surface of the first unlocking turntable 250 is provided with a movable pressing disc 254, the bottom surface of the second unlocking turntable 270 is provided with a fixed pressing disc 272, and the fixed pressing disc 272 and the movable pressing disc 254 are mutually abutted;

after the splicing male buckle 200 is separated from the splicing female slot 300 and the second unlocking knob 260 is loosened, the reset torsion spring 280 is twisted and reset; the reset torsion spring 280 drives the second unlocking turntable 270 and the second unlocking knob 260 to rotate and reset together when being twisted and reset; in the process, the arc-shaped unlocking extrusion strip 271 gradually loosens the extrusion on the locking elastic piece 230, and the first ratchet groove 231 of the locking elastic piece 230 is reset towards the direction protruding out of the plug-in cylinder 220; moreover, when the second unlocking rotary disc 270 is rotated and reset, the second unlocking rotary disc 270 drives the movable pressing disc 254 to rotate and reset together through the fixed pressing disc 272; thereby indirectly driving the first unlocking turntable 250, the first unlocking knob 240 and the abutting spring 290 to rotate and reset; it should be noted that, since the torsion of the reset torsion spring 280 is much greater than the torsion of the holding spring 290, when the reset torsion spring 280 resets, it is enough to drive the first unlocking turntable 250, the first unlocking knob 240 and the holding spring 290 to rotate and reset; in the process of rotating and resetting the first unlocking turntable 250, the locking elastic sheet 230 resets from the avoiding groove 252 to the state of abutting against the abutting boss 251;

it should be noted that, when the first unlocking rotating disc 250 rotates, the abutting spring 290 and the movable pressing disc 254 are also driven to rotate together; however, since the torsion of the holding spring 290 is much smaller than that of the return torsion spring 280, in this process, the power of the holding spring 290 cannot drive the return torsion spring 280 to twist, and thus cannot drive the second unlocking turntable 270 to rotate together; therefore, the movable pressure-holding disk 254 and the fixed pressure-holding disk 272 slip, and at this time, the movable pressure-holding disk 254 rotates and the fixed pressure-holding disk 272 remains stationary;

in short, when the first unlocking knob 240 is rotated, the first unlocking turntable 250 cannot drive the second unlocking turntable 270 to rotate through the abutting spring 290, so that the mutual independence and separation of the primary unlocking and the secondary unlocking are realized; when the reset torsion spring 280 resets, the second unlocking rotary disc 270 is enough to drive the first unlocking rotary disc 250 to reset together through the movable pressing disc 254; the effects that the unlocking is independent and the resetting is linked with each other are achieved;

it should be noted that, the blocking protrusion 253 is disposed on the other side of the abutting boss 251, and in the resetting process, when the locking elastic piece 230 abuts against the blocking protrusion 253, the first unlocking turntable 250 has completely reset and stopped rotating, thereby ensuring that the locking elastic piece 230 stably abuts against the abutting boss 251;

it should be further noted that a tilted reset guide surface 257 is disposed on one side of the avoiding groove 252 close to the abutting boss 251, and the tilted reset guide surface 257 communicates the avoiding groove 252 and the abutting boss 251; in the automatic resetting process, the locking elastic sheet 230 smoothly comes out of the avoiding groove 252 under the guiding action of the inclined resetting guide surface 257 and is firmly abutted against the abutting boss 251 again, so that the situation that the locking elastic sheet 230 is clamped by the avoiding groove 252 and cannot be reset during resetting is avoided, and the stability and the reliability of the spliced male buckle 200 are improved;

when the male splicing buckle 200 and the female splicing groove 300 are spliced with each other, that is, when the male splicing buckle 200 is in a splicing locking state, if the second unlocking knob 260 is directly rotated without first performing primary unlocking, on one hand, the rotation trend of the second unlocking knob 260 causes the arc-shaped unlocking extrusion strip 271 to have the trend of extruding the locking elastic sheet 230 to retract into the inserting cylinder 220; on the other hand, the tendency that the arc-shaped unlocking extrusion strip 271 extrudes the locking elastic sheet 230 to retract into the inserting tube 220 causes the locking elastic sheet 230 to be further tightly abutted against the abutting boss 251, so that the friction force between the locking elastic sheet 230 and the abutting boss 251 is further increased; moreover, the abutting boss has an inclined arc surface 258, and the inclined arc surface 258 of the abutting boss 251 further increases the friction force between the locking elastic sheet 230 and the abutting boss 251;

in short, if the second unlocking knob 260 is directly rotated while skipping the first-stage unlocking, the second unlocking knob 260 cannot be rotated to achieve unlocking; because the stronger the force is to rotate the second unlocking knob 260, the tighter the locking elastic sheet 230 abuts against the abutting boss 251, the more the rotation of the first unlocking turntable 250 is limited, and the rotation of the second unlocking turntable 270 is limited in turn; in addition, in order to further increase the friction force between the abutting boss 251 and the locking spring 230, the abutting part between the locking spring 230 and the abutting boss 251 and the inclined arc surface 258 of the abutting boss 251 are provided with anti-slip structures such as anti-slip particles, anti-slip grooves and the like, so as to further avoid the situation of mistaken unlocking;

in practical application, if a worker performs misoperation, the worker does not rotate the first unlocking knob 240 to achieve first-level unlocking and then rotates the second unlocking knob 260, but the worker cannot rotate the second unlocking knob 260 when directly rotating the second unlocking knob 260; since the unlocking separation of the male splicing buckle 200 and the female splicing groove 300 is performed by manual operation or by means of an auxiliary tool such as a wrench, when a worker rotates the second unlocking knob 260 and encounters a large resistance (the resistance is far greater than that encountered during normal unlocking), the worker knows that the worker has performed misoperation, and thus the worker is switched to a correct operation mode;

it should be particularly noted that two-stage unlocking is required to be performed when the male splicing buckle 200 and the female splicing groove 300 are detached, and the two-stage unlocking sequence cannot be reversed, so that the situation of mistakenly unlocking due to misoperation is effectively avoided, and the high stability and the high safety of the modular building are ensured; the problem that unlocking looseness occurs in splicing of the modular building due to the fact that the splicing assembly 30 is unlocked by inadvertently rotating the second unlocking knob 260 is avoided, and therefore safety accidents are avoided;

in practical application, the splicing male buckle 200 or the splicing female slot 300 is connected with the direct truss 10 in advance; the splicing male buckle 200 or the splicing female slot 300 is connected with the transfer truss 20 in advance; when the modular building is disassembled, the splicing male buckle 200 or the splicing female slot 300 is not required to be disassembled from the direct truss 10, and the splicing male buckle 200 or the splicing female slot 300 is not required to be disassembled from the transit truss 20; when the modular building is installed next time, the direct splicing male buckle 200 or the splicing female slot 300 realizes splicing of the direct truss 10 and the direct truss 10 or splicing of the direct truss 10 and the adapter truss 20, and the installation and disassembly efficiency is greatly improved.

According to the modular building 100 based on the BIM and the construction method thereof, the truss is connected in a splicing manner, so that the steps of splicing and disassembling the truss are simplified, the time for assembling and disassembling the modular building 100 is shortened, and the efficiency and the convenience for constructing the modular building 100 are improved; and the stability is high and the safety is good.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A BIM-based modular building comprising a plurality of support structures and a roof structure, the plurality of support structures being connected to the roof structure and providing support for the roof structure; the top surface structure is formed by splicing a plurality of direct trusses and a plurality of transfer trusses, and the supporting structure is formed by sequentially splicing a plurality of direct trusses; two adjacent direct trusses are detachably spliced through a splicing assembly, or the direct trusses are detachably spliced with the transit truss through the splicing assembly;

2. The BIM-based modular building of claim 1, wherein the male splice buckle comprises a first mating portion that connects with the direct truss or the transit truss; the splicing female slot comprises a second inserting part, and the second inserting part is connected with the direct truss or the transfer truss;

3. The BIM-based modular building of claim 2, wherein the male splicing buckle further comprises a reset torsion spring and a holding spring, and the second unlocking turntable is connected with the inserting cylinder through the reset torsion spring; the supporting spring is sleeved with the movable pressing disc and provides an elastic force for the movable pressing disc so that the movable pressing disc has a tendency of approaching the fixed pressing disc.

4. The BIM-based modular building of claim 3, wherein the insertion tube is provided with more than one first through groove, and the first through grooves are in one-to-one correspondence with the first ratchet grooves;

5. The BIM-based modular building of claim 3, wherein the torsion force of the return torsion spring is greater than the torsion force of the holding spring.

6. The BIM-based modular building of claim 3, wherein one side of the abutting boss is communicated with the avoiding groove, and the other side is provided with a blocking convex part; the locking elastic sheets correspond to the blocking convex parts one by one and are abutted or separated.

7. The BIM-based modular building of claim 2, wherein the number of the locking shrapnels is multiple, and the multiple locking shrapnels are arranged at equal intervals along the inner wall of the plug-in barrel.

8. The BIM-based modular building of claim 2, wherein the first unlocking dial is keyed to the movable clamping dial.

9. The BIM-based modular building of claim 2, wherein the direct truss defines a plurality of first locking receiving slots, and the intermediate truss defines a plurality of second locking receiving slots; the first inserting part and the second inserting part are both provided with screw holes;

10. A construction method of a modular building based on BIM is characterized in that: the installation process of the BIM based modular building of any one of claims 1 to 9 is:

the disassembly process of the modular building based on the BIM is as follows:

detaching the splicing male buckle from the direct truss or the adapting truss;