Assembling method of fabricated building

Abstract

The invention belongs to the technical field of building structures, and discloses an assembling method of a fabricated building, which is characterized in that a plurality of bearing plates are used for splicing, firstly, three-way connecting boxes on the bearing plates are spliced into a first floor on the basis that the bearing plates are made, and then a plurality of bearing plates, a door body and a window body are spliced into a wall body by a turnover device; a plurality of bearing plates are spliced into a secondary floor on a wall body through an overturning device on the wall body, then the bearing plates are repeatedly spliced to the required number of floors, then a roof body is spliced to the wall body on the uppermost layer, then a stair plate is installed on the wall body through the overturning device, and a stair is installed on the stair plate, the first floor and the secondary floor. According to the assembling method of the fabricated building, a plurality of components can be formed through the bearing plates, a crane machine is not needed, and the fabricated building can be assembled more easily and flexibly.

Description

Technical Field

[0001] The present invention relates to the technical field of building structures, and in particular to an assembling method of a prefabricated building. Background Art

[0002] At present, the construction of prefabricated buildings requires apartment design and shape design, and then the components are disassembled to form prefabricated buildings.

[0003] Prefabricated buildings rely on structural design. After the apartment type and structural system are determined, the components are prefabricated according to different positions and different stress states. The prefabricated components cannot be replaced in the use position of the components, lack universality, and the apartment type cannot be changed. In addition, when different projects are started, the templates need to be customized according to different structural systems and apartment types, resulting in a waste of resources. Prefabricated buildings in the prior art face problems such as component universality, apartment type changes, and customized templates. Summary of the invention

[0004] The object of the present invention is to provide an assembly method for prefabricated buildings, which can form multiple components through load-bearing plates with uniform specifications. The assembly is simpler and more flexible, and only one set of templates is needed to make the load-bearing plates, which greatly saves production costs.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The assembly method of the prefabricated building comprises the following steps:

[0007] S1. On the basis of the prepared foundation, multiple load-bearing plates are horizontally spliced ​​into the first floor through the three-way connection boxes on the load-bearing plates;

[0008] S2, the flipping device vertically connects the plurality of the load-bearing plates to the first floor through the three-way connection box, and during this time, the window and the door body are connected to the first floor and the load-bearing plates through the three-way connection box on the window body and the three-way connection box on the door body to form a wall;

[0009] S3, the flipping device horizontally splices the multiple load-bearing plates on the wall through the three-way connection box to form a secondary floor;

[0010] S4, the flipping device vertically connects the plurality of the load-bearing plates to the sub-floor through the three-way connection box, and during this time, the window body and the door body are connected to the sub-floor and the load-bearing plates through the three-way connection box to form the wall;

[0011] S5, repeating S3 and S4, and stacking in sequence in the height direction to a required number of layers;

[0012] S6, connecting the roof body to the uppermost wall through the three-way connection box of the roof body;

[0013] S7, the flipping device installs the load-bearing plate on the wall to form a staircase; and installs the stairs to the first floor, the second floor and the staircase through the three-way connection box of the stairs.

[0014] In some embodiments, forming the wall in step S2 further includes:

[0015] The flipping device stands the first load-bearing plate upright, so that the three-way connection box on the load-bearing plate is fixed to the three-way connection box on the first floor through a connecting piece. The flipping device stands the second load-bearing plate upright, fixes the three-way connection box on the load-bearing plate to the three-way connection box on the first floor through the connecting piece, and then connects the three-way connection box of the second load-bearing plate to the three-way connection box of the first load-bearing plate through a connecting piece, and then fixes the load-bearing plates, the door body and the window of the remaining wall in sequence.

[0016] In some embodiments, forming the wall in step S2 further includes:

[0017] At least one side of the load-bearing plate connected to the wall on the first floor corresponding to the reserved position of the stairwell is not installed to reserve a transportation channel; the load-bearing plate on the side of the stairwell where the load-bearing plate is not installed is connected to the load-bearing plate in the horizontal direction using the three-way connecting box on the steel pipe fitting for temporary support.

[0018] In some embodiments, the S3 step includes:

[0019] Two spaced upright steel pipe fittings are arranged corresponding to the position of the first load-bearing plate of the sub-floor, the load-bearing plate is connected to the wall and the steel pipe fittings, an upright steel pipe fitting is installed away from the wall and along the circumference of the first load-bearing plate of the sub-floor, the second load-bearing plate is spliced ​​to the first load-bearing plate and the steel pipe fittings, the remaining load-bearing plates of the sub-floor are fixed in turn, and the upright steel pipe fittings are removed after the sub-floor is spliced.

[0020] In some embodiments, the S3 step further includes:

[0021] After the sub-floor is spliced, the prestressed tendons are installed on the load-bearing plate and tensioned and anchored, and then the upright steel pipes are removed.

[0022] In some embodiments, the S7 step further includes:

[0023] The staircases are installed in sequence from the upper staircase to the lower staircase through the turning device.

[0024] In some embodiments, the load-bearing plate is provided with a plurality of the three-way connection boxes, the three-way connection boxes and the load-bearing plate are both rectangular, the length of the three-way connection box is twice its width and its height, and the width and height of the three-way connection box are equal to the thickness of the load-bearing plate.

[0025] In some embodiments, the three-way connection box is a hollow box, and any one side of the three-way connection box is arrayed with multiple connection holes, and at least some of the connection holes on any two of the three-way connection boxes can be matched and docked. A first notch is opened on the rectangular surface of the three-way connection box, and the three-way connection box is embedded in the load-bearing plate, the door body, the stairs, the window body and the roof body so that at least two sides of the three-way connection box including the first notch can be exposed.

[0026] In some embodiments, the load-bearing plate includes a plate body, wherein a portion of the three-way connection box is embedded in the edge of the plate body along the circumference of the plate body, and another portion of the three-way connection box is embedded in the plate body along the central axis of the plate body, and the connection hole is exposed at the edge end surface of the plate body and the end surface of the plate body along the thickness direction, and the first notches on different three-way connection boxes are oriented in the same direction; at least one through hole is also provided on the plate body, and the through hole penetrates the opposite surfaces of the plate body along its length direction and / or along its width direction;

[0027] A second notch is formed on one of the surfaces of the plate body along the thickness direction. The second notch is formed on the through path of the through hole. The through hole is connected to the second notch.

[0028] In some embodiments, the flipping device also includes a scissors lift, a base frame, a flip frame, a telescopic frame and an automatic moving chassis. The scissors lift is adjustably arranged on the automatic moving chassis, the base frame is arranged on the scissors lift, the scissors lift drives the base frame to rise and fall, the flip frame is hinged on the base frame, a flipping drive component is arranged on the base frame, the output end of the flipping drive component is connected to the flip frame, and the flipping drive component drives the flip frame to flip relative to the base frame; a telescopic drive component is arranged on the flip frame, the output end of the telescopic drive component is arranged with the telescopic frame, the telescopic drive component drives the telescopic frame to move in a direction away from the hinge point between the flip frame and the base frame, and a fixing hole capable of connecting the three-way connecting box is arranged on the flip frame.

[0029] In some embodiments, the flipping device is provided with a laser radar and a camera, and the laser radar and the camera are arranged on the automatic moving chassis. The center distance of the laser radar can be the same as the center distance of the three-way connection box placed on the end of the load-bearing plate of the flip frame. The camera is located in the middle of the automatic moving chassis. When the flipping device installs the load-bearing plate, the installation position of the load-bearing plate is automatically located by the laser radar and the camera.

[0030] Beneficial effects of the present invention:

[0031] By adopting the above installation method, when the prefabricated building is assembled, the first floor, the second floor, the wall and the stair slabs can be formed by the load-bearing plates, and they can all be connected through the three-way connection box. The load-bearing plates are more versatile, the use position of the load-bearing plates can be changed, and the assembly can be carried out by a flipping device without the need for a crane, making the assembly of the prefabricated building simpler and more flexible, and only one set of templates is needed to make the load-bearing plates, which greatly saves production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the prefabricated building of the present invention;

[0033] Figure 2 is a schematic diagram of a load-bearing plate in the present invention;

[0034] Figure 3 is a schematic diagram of a three-way connection box in the present invention;

[0035] Figure 4 is a schematic diagram showing the steel ribs of the load-bearing plate in the present invention;

[0036] Figure 5 It is a schematic diagram of a window in the present invention;

[0037] Figure 6 is a schematic diagram of a door body in the present invention;

[0038] Figure 7 is a schematic diagram of a staircase in the present invention;

[0039] Figure 8 is a schematic diagram of a roof body in the present invention;

[0040] Fig. 9 is a schematic diagram of a steel pipe fitting in the present invention;

[0041] Fig.10 is a schematic diagram of the turning device in the present invention;

[0042] Fig.11 It is a schematic diagram of the display adjustment platform in the present invention.

[0043] In the figure:

[0044] 10. load-bearing plate; 1. plate body; 11. reinforcing ribs; 13. steel mesh; 2. three-way connection box; 21. connection hole; 22. first notch; 3. through hole; 4. second notch;

[0045] 20, window body; 30, door body; 50, staircase; 60, roof body; 601, roof panel; 602, roof gable panel;

[0046] 70. Flipping device; 701. Scissor lift; 702. Base frame; 703. Flipping frame; 704. Flipping drive member; 705. Telescopic frame; 706. Telescopic drive member; 707. Automatic moving chassis; 708. LiDAR; 709. Camera; 710. Adjustment table; 7101. Rotating table; 7102. Linear adjustment table; 7103. Roller; 7104. Adjustment cylinder. DETAILED DESCRIPTION

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0048] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0050] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0051] like Figures 1 to 11 As shown, the present invention provides an assembly method of a prefabricated building, which comprises the following steps:

[0052] S1. On the prepared foundation, multiple load-bearing plates 10 are horizontally spliced ​​through the three-way connection boxes 2 on the load-bearing plates 10 to form the first floor. It can be understood that the prepared foundation refers to the foundation formed by treating the ground before laying the first floor. The foundation can be a pile foundation, a raft foundation, a strip foundation, an independent foundation or a natural foundation.

[0053] Specifically, Figure 2 and Figure 3 As shown, the load-bearing plate 10 includes a plate body 1 and a plurality of three-way connection boxes 2, wherein the three-way connection box 2 is a hollow box, and any one side of the three-way connection box 2 is arrayed with a plurality of connection holes 21; a portion of the three-way connection boxes 2 is embedded in the edge of the plate body 1 along the circumference of the plate, and another portion of the three-way connection boxes 2 is embedded on the plate body 1 along the central axis of the plate body 1, and the connection holes 21 are exposed at the edge end face of the plate body 1 and the end face of the plate body 1 along the thickness direction; at least some of the connection holes 21 on any two three-way connection boxes 2 located on different load-bearing plates 10 can be matched and docked.

[0054] A plurality of three-way connection boxes 2 are embedded in the load-bearing plate 10, so that when assembling, there is no need to set different load-bearing plates 10 according to different positions. On the one hand, the position of the load-bearing plate 10 can be flexibly changed, and on the other hand, it can be reused and is suitable for the design of different house types. There is no need to open a variety of molds, which reduces the requirements for production molds and production locations; any two load-bearing plates 10 can be connected at different positions through the above-mentioned three-way connection box 2, the connection method is simpler, and it is convenient to disassemble and assemble, and the load-bearing plate is easy to transport.

[0055] In order to facilitate the manufacture and connection of two different load-bearing plates 10, the load-bearing plate 10 and the three-way connection box 2 are both rectangular, the length of the three-way connection box 2 is twice its width and height, and the width and height of the three-way connection box 2 are equal to the total thickness of the load-bearing plate 10. For example, the dimensions of the load-bearing plate 10 in one embodiment are 3000mm×1500mm×150mm; and the dimensions of the three-way connection box 2 are 150mm×150mm×300mm.

[0056] The three-way connection boxes 2 arranged along the circumference of the load-bearing plate 10 are evenly distributed in the circumference; and the three-way connection boxes 2 embedded in the plate body 1 along the central axis of the plate body 1 are arranged on the central axis of the load-bearing plate 10 along its length direction; of course, it is understandable that it can also be arranged on the central axis of the load-bearing plate 10 along its width, so that it can be more convenient to splice. It is understandable that in other embodiments, the two can also adopt other regular shapes. In the current embodiment, the three sides of the three-way connection boxes 2 arranged along the circumference of the load-bearing plate 10 are exposed, and the two sides of the three-way connection boxes 2 embedded in the plate body 1 along the central axis of the plate body 1 are exposed, so that adjacent plate bodies 1 can be spliced ​​side by side, overlapped, L-shaped, etc.; and there is no need to measure the engineering quality or conduct construction layout during assembly, and only the three-way connection boxes 2 need to be aligned.

[0057] It should be noted here that when at least some of the connection holes 21 on any two three-way connection boxes 2 located on different load-bearing plates 10 are docked, they need to be connected through external connectors, which can be bolts. Based on the above connection through bolts, in order to facilitate operation, a first notch 22 is also provided on the three-way connection box 2, and the first notch 22 is located on one side of the three-way connection box 2 along the thickness direction of the plate body 1, so as to facilitate the installation of the above-mentioned connector when two three-way connection boxes 2 are docked. In the current embodiment, the first notches 22 on different three-way connection boxes 2 on the same load-bearing plate 10 have the same orientation, so as to facilitate operation when connecting the load-bearing plates 10.

[0058] Specifically, Figure 3 As shown, at least one group of connection holes 21 is provided on any one side of the rectangular three-way connection box 2. In the current embodiment, the three-way connection box 2 has four rectangular surfaces and two opposite square surfaces. Two groups of connection holes 21 are provided on three of the four rectangular surfaces, and one group is provided on the other rectangular surface. The first notch 22 is located on the rectangular surface, and one group is provided on the two opposite square surfaces. Exemplarily, four connection holes 21 are provided in each array, and the four connection holes 21 form a square, so that the distance between adjacent connection holes 21 in each group is the same, so that when different three-way connection boxes 2 are spliced, they are connected through at least one group of connection holes 21 to ensure stability.

[0059] The plate body 1 is also provided with a through hole 3, which penetrates the opposite surfaces of the plate body 1 along its length direction and / or along its width direction, so as to facilitate wiring. Figure 2As shown, in order to facilitate threading, a second notch 4 is provided on one of the surfaces of the plate body 1 along the thickness direction, and the second notch 4 is arranged on the through path of the through hole 3, and the second notch 4 is connected with the through hole 3, so that threading can be facilitated. Furthermore, the load-bearing plate 10 also includes a cover, which is detachably arranged on the second notch 4 so as to be able to close the second notch 4. Specifically, a limiting platform is provided on the inner wall of the second notch 4, and the size of the cover is smaller than the size of the second notch 4, so that the cover can be placed in the second notch 4 and abut against the limiting platform. In order to prevent the cover from protruding from the second notch 4, the distance between the edge of the second notch 4 and the limiting platform is the same as the thickness of the cover, so that when the cover is used to close the second notch 4, the surface of the cover is flush with the surface of the plate body 1. Through the cover, the second notch 4 can be closed after routing, or it can be blocked without threading.

[0060] like Figure 4 As shown, the plate body 1 includes reinforcing ribs 11, and the reinforcing ribs 11 are staggered horizontally and vertically, and the three-way connection box 2 is fixedly connected to the reinforcing ribs 11, and the two can be connected by but not limited to welding. A partition is arranged between adjacent reinforcing ribs 11, and the partition is a sound insulation and heat insulation board, which plays a role of thermal insulation; illustratively, the partition is a foam layer, which is used to reduce the weight of the board and play a role of thermal insulation. The plate body 1 is also provided with a concrete surface layer, and the concrete surface layer is poured on the partition and the reinforcing ribs 11 to cover the reinforcing ribs 11 and the partition. Specifically, a steel mesh 13 can be arranged on the reinforcing ribs 11, so that concrete is poured on the steel mesh 13 to improve stability. It can be understood that the concrete surface does not block the surface of the three-way connection box 2, and the surfaces of the other three-way connection boxes 2 are flush.

[0061] Furthermore, when splicing the first floor, it is only necessary to arrange a number of load-bearing plates 10 and connect the three-way connection boxes 2 on two adjacent load-bearing plates 10 through connecting pieces.

[0062] S2, the flipping device 70 vertically connects the multiple load-bearing plates 10 to the first floor through the three-way connection box 2, during which the flipping device 70 also stands the window 20 and the door 30 upright, and then connects the window 20 and the door 30 to the first floor and the load-bearing plates 10 through the three-way connection box 2 on the window 20 and the three-way connection box 2 on the door 30 to form a wall;

[0063] The flip device 70 stands up the load-bearing plate 10 and connects it to the first floor through the three-way connection box 2 and the connection piece. When placing the load-bearing plate 10, the first notch 22 needs to face inward; and when placing the load-bearing plate 10, it can be installed upright through the auxiliary support rod in cooperation with the flip device 70. The auxiliary support rod is a prior art and is not described in detail. During the specific installation, the flip device 70 stands up the first load-bearing plate 10, and fixes the three-way connection box 2 on the load-bearing plate 10 with the three-way connection box 2 on the first floor through the connection piece. The flip device 70 stands up the second load-bearing plate 10, and fixes the three-way connection box 2 on the load-bearing plate 10 with the three-way connection box 2 on the first floor through the connection piece, and then connects the three-way connection box 2 of the second load-bearing plate 10 with the three-way connection box 2 of the first load-bearing plate 10 through the connection piece, and then fixes the remaining load-bearing plates 10, door bodies 30 and window bodies 20 connected to the wall on the first floor in sequence to form a complete wall. It should be noted that the wall may include the outer wall and the inner wall. Figure 5 and Figure 6 As shown, the door body 30 includes a door frame, and a plurality of the above-mentioned three-way connection boxes 2 are arranged along the edge of the door frame; the window body 20 includes a window frame, and a plurality of the above-mentioned three-way connection boxes 2 are arranged at intervals along the edge of the window frame. Exemplarily, the door opening size is 900mm×2100mm or 1200mm×2100mm; the window opening size is 1200mm×1500mm, and the window sill height is 900mm; or the window opening size is 1200mm×2400, and the window sill height is 900mm. In the current embodiment, the window body 20 and the door body 30 have the same outer periphery as the outer periphery of the load-bearing plate 10, except that the window opening or door opening is arranged in the middle.

[0064] In addition, when installing the wall, at least one side of the load-bearing plate 10 of the wall connected to the first floor corresponding to the reserved position of the staircase is not installed to reserve a transportation channel; and in order to ensure stability, the side of the staircase without the load-bearing plate 10 is connected to the load-bearing plate 10 in the horizontal direction using the three-way connection box 2 on the steel pipe fitting for temporary support. Fig. 9 As shown, the steel pipe fittings here include square steel pipes, and a plurality of three-way connection boxes 2 are arranged at intervals on the steel pipes, so as to be supported and fixed by the steel pipe fittings.

[0065] Here, a flipping device 70 is used to erect the load-bearing plate 10, the window body 20 and the door body 30, thereby reducing the burden on the operator. Fig.10 and Fig.11As shown, the flipping device 70 includes a scissor lift 701, a base frame 702, a flip frame 703, a telescopic frame 705 and an automatic moving chassis 707. An adjustment platform 710 is provided on the automatic moving chassis 707, and the scissor lift 701 is set on the adjustment platform 710, so that the scissor lift 701 can be fine-tuned relative to the automatic moving chassis 707. More specifically, the adjustment platform 710 includes a rotating platform 7101, on which a linear adjustment platform 7102 is arranged, rollers 7103 are arranged on both sides of the linear adjustment platform 7102, the scissor lift 701 has a bottom frame, and a slideway is arranged on the inner edge of the bottom frame. The rollers 7103 on both sides of the linear adjustment platform 7102 slide on the slideway. The bottom frame is also provided with an adjustment cylinder 7104, and the output end of the adjustment cylinder 7104 is connected to the linear adjustment platform 7102, so that the scissor lift 701 is driven to rotate by the rotating platform 7101, and the bottom frame is driven to move linearly relative to the linear adjustment platform 7102 by the telescopic adjustment of the adjustment cylinder 7104, so that the position of the scissor lift 701 can be fine-tuned. The base frame 702 is arranged on the scissor lift 701, and the scissor lift 701 drives the base frame 702 to rise and fall. The scissor lift 701 is a prior art, and its structure is not described in detail. The flip frame 703 is hinged on the base frame 702, and a flip driving component 704 is provided on the base frame 702. The output end of the flip driving component 704 is connected to the end of the flip frame 703 away from the hinge point between the flip frame 703 and the base frame 702, so that the flip driving component 704 drives the flip frame 703 to flip relative to the base frame 702. A telescopic driving component 706 is provided on the flip frame 703, and a telescopic frame 705 is provided at the output end of the telescopic driving component 706. The telescopic driving component 706 drives the telescopic frame 705 to move in a direction away from the hinge point between the flip frame 703 and the base frame 702. A fixing hole that can be connected to the three-way connection box 2 is provided on the flip frame 703. In the current embodiment, the telescopic driving component 706 and the flip driving component 704 are both cylinders or oil cylinders. Among them, the flipping device 70 is also provided with a laser radar 708 and a camera 709. When the flipping device installs the load-bearing plate 10, the installation position of the load-bearing plate 10 is automatically located by the laser radar 708 and the camera 709. The laser radar 708 and the camera 709 are arranged on the automatic moving chassis 707. The center distance of the laser radar 708 is the same as the center distance of the three-way connection box 2 at the end of the load-bearing plate 10, and the camera 709 is located in the middle of the automatic moving chassis 707.By adopting the above structure, the load-bearing plate 10, the door body 30 or the window body 20 can be placed horizontally on the telescopic frame 705, and then the three-way connection box 2 is connected to the fixing hole on the telescopic frame 705 through the connecting parts, and then it is transported to the installation position by the automatic moving chassis 707, and the laser radar 708 and the camera 709 visual positioning technology are used to locate the position where it needs to be installed, so that the position of the load-bearing plate 10, the door body 30 or the window body 20 is adjusted by the automatic moving chassis 707 and the adjustment platform 710 to achieve automatic docking, and then the installation height is adjusted by the scissor lift 701, and then it can be flipped by the flip drive 704 as needed, and finally the telescopic drive 706 is used to move the telescopic frame 705 away, that is, the load-bearing plate 10, the door body 30 or the window body 20 is lowered to the installation position for installation, and then the wall installation is completed.

[0066] S3, the turning device 70 horizontally splices the multiple load-bearing plates 10 on the wall through the three-way connection box 2 to form a secondary floor;

[0067] Specifically, two spaced upright steel pipes are arranged at the position of the first load-bearing plate 10 of the sub-floor, and the load-bearing plate 10 is connected to the wall and the steel pipe by means of a flipping device 70. The use of the flipping device 70 is not repeated here. An upright steel pipe is installed away from the wall and along the circumference of the first load-bearing plate 10 of the sub-floor, and the second load-bearing plate 10 is spliced ​​to the first load-bearing plate 10 and the steel pipe. The load-bearing plate 10 and the steel pipe can be fixed first, and then the connection between the two load-bearing plates 10 and between the load-bearing plate 10 and the wall can be fixed, and then the load-bearing plates 10 of the remaining sub-floors can be fixed in sequence.

[0068] After splicing the secondary floor, the upright steel pipe fittings can be removed; it should be noted here that if there is a large span on the first floor, the prestressed tendons can be installed on the load-bearing plate 10 before removing the steel pipe fittings. Specifically, they can be installed in the through holes 3 located on the long sides, and after the stress tendons are tensioned and anchored, the upright steel pipe fittings can be removed.

[0069] S4. The flipping device 70 vertically connects multiple load-bearing plates 10 to the sub-floor through a three-way connecting box 2. During this period, the window body 20 and the door body 30 are connected to the sub-floor and the load-bearing plates 10 through a three-way connecting box 2 to form a wall. The specific method of installing the wall on the sub-floor is the same as the specific method of installing the wall on the first floor, which will not be repeated here.

[0070] S5, repeat S3 and S4, and stack them in the height direction to the required number of layers to form a multi-layer building; the specific number of layers is not limited.

[0071] S5, connect the roof body 60 to the uppermost wall through the three-way connection box 2 of the roof body 60; specifically, as Figure 8As shown, the roof body 60 includes a roof panel 601 and a roof gable panel 602. The roof gable panel 602 is triangular, and multiple three-way connection boxes 2 are arranged on the roof gable panel 602 along its circumference. The roof panel 601 is rectangular, and the two ends of the short side of the roof panel 601 are bent in the same direction, and multiple three-way connection boxes 2 are arranged. Then, the roof body 60 is formed by the roof panel 601 and the roof gable panel 602, and is connected to the top of the wall at the top through the three-way connection box 2 on the roof body 60.

[0072] S6, the flip device 70 installs the load-bearing plate 10 on the wall to form a stair slab; at the position of the reserved stairwell, the flip device 70 is lowered from the top floor to install the stair slab in sequence; after installing one stair slab, the stair 50 located on the first floor of the stair slab is installed, and the stair 50 is installed to the first floor, the second floor and the stair slab through the three-way connection box 2 of the stair 50, so as to install the stair slab of the next layer downward in sequence until the first floor. The lifting and lowering of the flip device 70 can be hoisted by the pulley block set in the stairwell; the pulley block is not specifically limited.

[0073] Subsequently, a guardrail may be installed on the first floor or the second floor. A connecting flange is provided on the guardrail, and the connecting flange can be connected to the three-way connecting box 2 through a connecting piece.

[0074] When the layout needs to be changed or expanded, it can be achieved by simply moving or adding or subtracting the corresponding load-bearing plates 10, door bodies 30 and window bodies 20. During the movement, attention should be paid to the load-bearing safety issues.

[0075] Through the above-mentioned installation steps, the load-bearing plate 10 can be used to form components such as walls, first-floor floors, second-floor floors, and stair treads, making the overall assembly simpler and more flexible, and enabling flexible changes in component positions and house types, and combined with the flip device 70 to achieve automatic alignment of component assembly, and only one set of templates is needed to make the load-bearing plate 10, greatly saving production costs.

[0076] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Assembly method of prefabricated buildings, It is characterized in that The steps include: S1. On the basis of the prepared foundation, multiple load-bearing plates (10) are horizontally spliced ​​into the first floor through the three-way connection boxes (2) on the load-bearing plates (10); S2, the turning device (70) vertically connects the plurality of load-bearing plates (10) to the first floor through the three-way connection box (2), and during this time, the window (20) and the door (30) are connected to the first floor and the load-bearing plates (10) through the three-way connection box (2) on the window (20) and the three-way connection box (2) on the door (30) to form a wall; S3, the turning device (70) horizontally splices the plurality of load-bearing plates (10) on the wall through the three-way connection box (2) to form a secondary floor; S4, the turning device (70) vertically connects the plurality of the load-bearing plates (10) to the sub-floor through the three-way connection box (2), and in the meantime, the window body (20) and the door body (30) are connected to the sub-floor and the load-bearing plates (10) through the three-way connection box (2) to form the wall; S5, repeating S3 and S4, and stacking in sequence in the height direction to a required number of layers; S6. Connecting the roof body (60) to the wall body located at the top through the three-way connection box (2) of the roof body (60); S7, the flipping device (70) installs the load-bearing plate (10) on the wall to form a staircase; and installs the staircase (50) on the first floor, the second floor and the staircase through the three-way connection box (2) of the staircase (50).

2. The method for assembling a prefabricated building according to claim 1, It is characterized in that When the wall is formed in the step S2, the flipping device (70) stands the first load-bearing plate (10) upright, so that the three-way connection box (2) on the load-bearing plate (10) is fixed to the three-way connection box (2) on the first floor through a connecting piece, and the flipping device (70) stands the second load-bearing plate (10) upright, fixes the three-way connection box (2) on the load-bearing plate (10) to the three-way connection box (2) on the first floor through the connecting piece, and then connects the three-way connection box (2) of the second load-bearing plate (10) to the three-way connection box (2) of the first load-bearing plate (10) through a connecting piece, and then sequentially fixes the load-bearing plates (10), the door body (30) and the window body (20) of the remaining wall.

3. The method for assembling a prefabricated building according to claim 1, It is characterized in that The step S2 also includes: At least one side of the load-bearing plate (10) connected to the wall on the first floor corresponding to the reserved position of the staircase is not installed to reserve a transportation channel; the side of the staircase where the load-bearing plate (10) is not installed is connected to the load-bearing plate (10) in the horizontal direction using the three-way connection box (2) on the steel pipe fitting for temporary support.

4. The method for assembling a prefabricated building according to claim 3, It is characterized in that The S3 step includes: Two spaced upright steel pipes are arranged at the position corresponding to the first load-bearing plate (10) of the sub-floor, the load-bearing plate (10) is connected to the wall and the steel pipe, an upright steel pipe is installed away from the wall and along the circumference of the first load-bearing plate (10) of the sub-floor, the second load-bearing plate (10) is spliced ​​to the first load-bearing plate (10) and the steel pipe, the remaining load-bearing plates (10) of the sub-floor are fixed in turn, and the upright steel pipe is removed after the sub-floor is spliced.

5. The method for assembling a prefabricated building according to claim 4, It is characterized in that The S3 step further includes: After the sub-floor is spliced, the prestressed tendons are installed on the load-bearing plate (10), tensioned and anchored, and then the upright steel pipe parts are removed.

6. The method for assembling a prefabricated building according to claim 1, It is characterized in that The step S7 further includes: The staircases (50) are installed in sequence from the upper staircase (50) to the lower staircase (50) through the turning device (70).

7. The method for assembling a prefabricated building according to claim 1, It is characterized in that The load-bearing plate (10) is provided with a plurality of three-way connection boxes (2); the three-way connection boxes (2) and the load-bearing plate (10) are both rectangular; the length of the three-way connection box (2) is twice its width and height; and the width and height of the three-way connection box (2) are both equal to the thickness of the load-bearing plate (10).

8. The method for assembling a prefabricated building according to claim 7, It is characterized in that The three-way connection box (2) is a hollow box, and any one side of the three-way connection box (2) is arrayed with a plurality of connection holes (21), and at least some of the connection holes (21) on any two of the three-way connection boxes (2) can be matched and docked, and a first notch (22) is provided on a rectangular surface of the three-way connection box (2). The three-way connection box (2) is embedded in the load-bearing plate (10), the door body (30), the staircase (50), the window body (20) and the roof body (60) so that at least two surfaces of the three-way connection box (2) including the first notch (22) are exposed.

9. The method for assembling a prefabricated building according to claim 8, It is characterized in that The load-bearing plate (10) comprises a plate body (1), wherein a portion of the three-way connection box (2) is embedded in the edge of the plate body (1) along the circumference of the plate body (1), and another portion of the three-way connection box (2) is embedded in the plate body (1) along the central axis of the plate body (1), and the connection hole (21) is exposed at the edge end surface of the plate body (1) and the end surface of the plate body (1) along the thickness direction, and the first notch (22) on different three-way connection boxes (2) has the same orientation; the plate body (1) is also provided with at least one through hole (3), and the through hole (3) penetrates the opposite surfaces of the plate body (1) along its length direction and / or along its width direction; A second notch (4) is provided on one of the surfaces of the plate body (1) in the thickness direction. The second notch (4) is provided on a through path of the through hole (3). The through hole (3) is connected to the second notch (4).

10. The method for assembling a prefabricated building according to any one of claims 1 to 9, It is characterized in that The overturning device (70) further comprises a scissor lift (701), a base frame (702), a overturning frame (703), a telescopic frame (705) and an automatic movable chassis (707); the scissor lift (701) is adjustably arranged on the automatic movable chassis (707); the base frame (702) is arranged on the scissor lift (701); the scissor lift (701) drives the base frame (702) to rise and fall; the overturning frame (703) is hinged on the base frame (702); a overturning driving member (704) is arranged on the base frame (702); the overturning driving member (704) is arranged on the base frame (702); The output end of the component (704) is connected to the flip frame (703), and the flip driving component (704) drives the flip frame (703) to flip relative to the base frame (702); a telescopic driving component (706) is provided on the flip frame (703), and the output end of the telescopic driving component (706) is provided with the telescopic frame (705), and the telescopic driving component (706) drives the telescopic frame (705) to move in a direction away from the hinge point between the flip frame (703) and the base frame (702); and a fixing hole capable of connecting the three-way connection box (2) is provided on the flip frame (703).

11. The method for assembling a prefabricated building according to claim 10, It is characterized in that The flipping device (70) is provided with a laser radar (708) and a camera (709), and the laser radar (708) and the camera (709) are arranged on the automatic moving chassis (707). The center distance of the laser radar (708) can be the same as the center distance of the three-way connection box (2) placed at the end of the load-bearing plate (10) of the flip frame (703). The camera (709) is located in the middle of the automatic moving chassis (707). When the flipping device (70) installs the load-bearing plate (10), the installation position of the load-bearing plate (10) is automatically located by the laser radar (708) and the camera (709).

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