An assembled building structure and construction method

Abstract

This application relates to the technical field of prefabricated buildings, and particularly to a prefabricated building structure and a construction method, which includes a bottom plate that is horizontally arranged; four enclosing walls that are respectively connected to the four sides of the bottom plate, a connecting unit is arranged between two adjacent enclosing walls, and the bottom plate is connected to the enclosing walls, and an entrance and exit is arranged on one of the enclosing walls; a top cover that is connected to the side of the enclosing wall away from the bottom plate; multiple support columns that are slidably connected to the enclosing walls and are vertically arranged with respect to the bottom plate; multiple anti-return units that are arranged on the enclosing walls and are connected to the support columns for realizing the one-way movement of the support columns along their own axes towards the ground; this application has the effect that new force support points can be automatically formed in the foundation settlement area through the cooperation of the support columns and the anti-return units, thereby reducing the impact of foundation settlement on the normal use of the prefabricated building structure.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated buildings, and in particular to a prefabricated building structure and a construction method thereof. Background Art

[0002] A building assembled from prefabricated components on the construction site is called a prefabricated building; compared with on-site construction, prefabricated buildings have the advantages of convenient construction, fast project progress, little impact on the surrounding environment, and easy quality assurance of building components; among them, a prefabricated house is a relatively common temporary prefabricated building, which can be assembled and disassembled conveniently and quickly and is suitable for construction sites.

[0003] A prefabricated building is disclosed in the prior art, which includes an impact suppression mechanism and a plurality of columns, wall panels and corner pipes. Adjacent columns are connected by wall panels, and the wall panels and the ground are connected by corner pipes; the impact suppression mechanism includes a vortex tube and a plurality of impact suppression units. The vortex tube is vertically arranged in the wall panel, and the vortex tube includes a compressed air inlet, an upward cold air outlet and a downward hot air outlet; each impact suppression unit includes an air inlet duct and a water accumulation cavity. The side wall of the air inlet duct is provided with pores, and the water accumulation cavity and the air inlet duct are communicated through the pores; a plurality of air inlet ducts are communicated, and the communication part is communicated with the compressed air inlet. The hot air outlet is communicated with the corner pipe, the cold air outlet is respectively communicated with each water accumulation cavity, and a drainage channel for discharging the accumulated water in the water accumulation cavity is arranged in the wall panel.

[0004] In view of the above related technologies, the ground where the prefabricated building is located is likely to sink due to the influence of surrounding construction operations. When the ground settlement is relatively serious, the prefabricated building may be unevenly stressed or even overturned, seriously affecting the normal use of the prefabricated building. Summary of the Invention

[0005] In order to reduce the influence of ground settlement on the normal use of prefabricated buildings, the present application provides a prefabricated building structure and a construction method thereof.

[0006] The prefabricated building structure and construction method provided by the present application adopt the following technical solutions:

[0007] In a first aspect, the present application discloses a prefabricated building structure, including

[0008] a bottom plate, the bottom plate is horizontally arranged;

[0009] four enclosing wall panels, the four enclosing wall panels are respectively connected to the four sides of the bottom plate, a connecting unit is arranged between adjacent two enclosing wall panels, and the bottom plate is connected to the enclosing wall panels. An entrance and exit is arranged on one of the enclosing wall panels;

[0010] A top cover, which is connected to the side of the enclosing wall away from the bottom plate;

[0011] Multiple support columns, which are slidably connected to the enclosing wall and are perpendicular to the bottom plate. The multiple support columns are respectively arranged within the four enclosing walls;

[0012] Multiple anti-return units, which are arranged on the enclosing wall and are connected to the support columns, and are used to realize the one-way movement of the support columns along their own axes towards the ground.

[0013] By adopting the above technical solution, first tamp and level the foundation where the prefabricated building is to be placed, then lift the bottom plate and place it flat on the foundation. Then, respectively stand the four enclosing walls equipped with support columns and anti-return units around the bottom plate. First, make three of the enclosing walls abut against the bottom plate, and then fix them through the connecting unit. Remove the padding under the bottom plate, and then connect and fix the remaining enclosing wall to the other enclosing walls through the connecting unit. Then, lift the top cover by a hoisting device, adjust the position and lower it to connect and fix it to the enclosing wall. When the foundation where the bottom plate is located sinks or subsides due to construction, the support columns in the settlement area move towards the ground under their own gravity until the support columns abut against the settled ground. When the prefabricated building overturns due to foundation settlement, the support columns are stressed, and the anti-return units apply force to the support columns to prevent the support columns from retracting. At this time, the support columns become new force-bearing support points, reducing the impact caused by foundation settlement; the designed prefabricated building structure can easily form a living space for people through the bottom plate, enclosing wall and top cover. The adjacent enclosing walls can be connected and fixed through the connecting unit. The cooperation of the support columns and anti-return units can automatically form new force-bearing support points in the foundation settlement area, thereby reducing the impact of foundation settlement on the normal use of the prefabricated building structure.

[0014] In a specific feasible implementation, the anti-return unit includes an anti-return column, a first spring and a pulling member;

[0015] The number of the anti-return columns is multiple. An adjustment cavity is formed in the enclosing wall. The multiple anti-return columns are distributed circumferentially around the support column, and one end of the anti-return column is hinged to the cavity wall of the adjustment cavity;

[0016] The number of the first springs is multiple. One end of the first spring is connected to the anti-return column, and the other end is connected to the cavity wall of the adjustment cavity, and is used to make the movable end of the anti-return column move towards the support column. A plurality of force-bearing discs are coaxially connected to the support column, and the plurality of force-bearing discs are distributed along the axial direction of the support column. The gravity of the support column can overcome the elastic force of the first spring to realize the movement of the support column towards the ground;

[0017] The pulling-back member is installed on the enclosing wall, and the pulling-back member is connected to the anti-return column for moving the movable end of the anti-return column toward the side away from the support column.

[0018] By adopting the above technical solution, after the foundation settles, the support column in the settlement area moves toward the ground under the influence of its own gravity. While the support column moves toward the ground, it applies a force to the anti-return column, causing the anti-return column to overcome the elastic force of the first spring. The movable end of the anti-return column moves toward the wall of the adjustment cavity, enabling the force-receiving plate to fall normally until the support column abuts against the settled foundation. At this time, the first spring applies a force to the anti-return column, causing the movable end of the anti-return column to move toward the support column and abut against the support column. When the prefabricated building structure tilts due to settlement, the anti-return column applies a force to the support column through the force-receiving plate, causing the support column to maintain its current extended length. The support column becomes a new force-bearing support point. When it is necessary to disassemble the prefabricated building structure, the pulling-back member is used to control the anti-return column to move toward the wall of the adjustment cavity, and then applying a force to the support column can achieve the retraction of the support column; the designed anti-return unit can drive the anti-return column to move toward the support column through the first spring. The cooperation between the anti-return column and the force-receiving plate facilitates the one-way movement of the support column. The pulling-back member can retract the support column into the enclosing wall for the next use after the prefabricated building is used.

[0019] In a specific feasible implementation, an expansion panel is vertically connected to the end of the support column away from the top cover, and the expansion panel is used to block the lower opening of the adjustment cavity.

[0020] By adopting the above technical solution, the designed expansion panel can increase the contact area between the support column and the settled foundation and improve the support strength.

[0021] In a specific feasible implementation, the pulling-back member includes a limiting cylinder and a plurality of second springs;

[0022] A strip-shaped groove for the anti-return column to pass through is formed on the limiting cylinder, and the opening direction of the strip-shaped groove is arranged along the axial direction of the support column;

[0023] One end of the second spring is connected to the wall of the adjustment cavity, and the other end is connected to the lower end of the limiting cylinder for cooperating with the top cover to realize the axial movement of the limiting cylinder along the support column.

[0024] By adopting the above technical solution, the designed pulling-back member can cooperate with the top cover to realize the axial movement of the limiting cylinder along the support column through the second spring. The state of the anti-return column can be controlled through the limiting cylinder, and thus the retraction of the support column can be achieved.

[0025] In a specific possible implementation scheme, a guide frame is connected to the cavity wall of the adjustment cavity, the support column is slidably connected to the guide frame, and the second spring is connected to the guide frame at one end away from the limiting cylinder.

[0026] By adopting the above technical solution, the designed guide frame can realize the sliding guidance of the support column and provide an installation position for the second spring.

[0027] In a specific embodiment, a plurality of plug-in columns are connected to the top cover, and the plug-in columns are inserted into the adjustment cavity to achieve plug-in fixation with the enclosing wall;

[0028] When the plug-in column is not inserted into the adjustment cavity, the second spring applies force to the limiting cylinder so that the lower edge of the strip groove abuts against the return-blocking column, and the support column is in a locked state.

[0029] When the plug-in column is plugged into place, the plug-in column applies force to the second spring through the limiting cylinder, so that the second spring is compressed. The limiting cylinder and the return-blocking column are staggered, and the support column is in an unlocked state.

[0030] By adopting the above technical solution, after the installation of the base plate and the four enclosing walls is completed, force is applied to the top cover through the lifting equipment, and then the position of the top cover is adjusted so that the plug-in column is aligned with the position of the adjustment cavity, and then it is lowered until the plug-in column is inserted into the adjustment cavity and installed in place. At this time, the plug-in column applies force to the limit cylinder, so that the limit cylinder overcomes the elastic force of the second spring and moves along the axial direction of the support column toward the ground, so that the limit cylinder and the anti-return column are staggered. At this time, the limit cylinder no longer applies force to the anti-return column, and the anti-return column is only affected by the gravity of the support column and the elastic force of the first spring, thereby facilitating the support column to automatically fall and support when the foundation settles. The designed plug-in column can cooperate with the second spring to unlock the support column, thereby facilitating the support column to automatically fall and support when the foundation settles.

[0031] In a specific embodiment, the connecting unit includes an arc-shaped cover, a right-angle plate, and two connecting plates;

[0032] The two connecting plates are vertically connected, the right-angle plate abuts against the connecting plates, and the right-angle plate and the two connecting plates enclose an insertion cavity;

[0033] A plurality of connecting rods are connected to one side of the enclosing wall, the plurality of connecting rods are distributed along the height direction, and the connecting rods are arranged through the connecting plate. The connecting rods on two adjacent enclosing walls are staggered, and the right-angle plate and the connecting rods are bolted;

[0034] The arc-shaped cover is detachably connected to the two connecting plates, and the right-angled plate is located in the cavity formed by the arc-shaped cover and the two right-angled plates.

[0035] By adopting the above technical solution, after the enclosing wall is erected, the two connected connecting plates are moved towards the connection of the adjacent two enclosing walls until the connecting rod on the enclosing wall passes through the connecting plate, and then the right-angled plate is abutted against the connecting plate to form an insertion cavity, and the right-angled plate and the connecting rod are tightened by bolts to realize the connection of the adjacent two enclosing walls. Then, the arc-shaped cover is detachably connected to the connecting plate, and finally the construction of the top cover can be carried out; the designed connecting unit is convenient for realizing the connection and fixation of the adjacent two enclosing walls through the cooperation of the connecting plate, the connecting column and the right-angled plate. The arc-shaped cover is convenient for enclosing the right-angled plate inside, reducing the erosion of the bolts for tightening the connecting rod and the right-angled plate by external rainwater.

[0036] In a specific implementable embodiment, a U-shaped strip is connected to the connecting plate, and hook-shaped strips adapted to the U-shaped strip are connected to both ends of the arc-shaped cover. The cooperation between the U-shaped strip and the hook-shaped strip realizes the detachable fixed connection between the arc-shaped cover and the connecting plate.

[0037] By adopting the above technical solution, the designed U-shaped strip and hook-shaped strip are convenient for realizing the detachable fixed connection between the arc-shaped cover and the connecting plate.

[0038] In a second aspect, the present application discloses a construction method for an assembled building structure, including:

[0039] S1: Tamping and leveling the foundation;

[0040] S2: Placing the bottom plate: Placing a plurality of elevation blocks on the foundation, and then placing the bottom plate on the plurality of elevation blocks;

[0041] S3: Installing the enclosing wall: Erecting four enclosing walls around the bottom plate according to the preset installation positions, and fixing three of the enclosing walls to the bottom plate through the connecting unit, then removing the elevation blocks, and then fixing the last enclosing wall through the connecting unit;

[0042] S4: Constructing the top cover: Laying and fixing the top cover on the four enclosing walls.

[0043] By adopting the above technical solution, it is convenient to quickly realize the construction of the assembled building structure, and the automatic falling support for the foundation settlement area can be realized through the support column and the anti-backflow unit, reducing the influence of the foundation settlement on the normal use of the assembled building structure.

[0044] In summary, the present application includes at least one of the following beneficial technical effects:

[0045] 1. The designed prefabricated building structure can easily form a living space for people through the bottom plate, enclosing walls and top cover. The connection unit can realize the connection and fixation of two adjacent enclosing walls. The support column and the anti-return unit can cooperate to automatically form a new force support point in the foundation settlement area, thereby reducing the impact of foundation settlement on the normal use of the prefabricated building structure.

[0046] 2. The designed prefabricated building structure can drive the anti-return column to move towards the support column through the first spring. The cooperation of the anti-return column and the force-bearing plate can easily realize the one-way movement of the support column. The retracting part can retract the support column into the enclosing wall after the prefabricated building is used and wait for the next use.

[0047] 3. The designed prefabricated building structure can easily realize the connection and fixation of two adjacent enclosing walls through the cooperation of the connecting plate, connecting column and right-angle plate. The arc-shaped cover can enclose the right-angle plate to reduce the erosion of the bolts tightening the connecting rod and the right-angle plate by external rainwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 is the overall structural schematic diagram of the prefabricated building structure in the embodiment of the present application.

[0049] Figure 2 is Figure 1 partial structural schematic diagram of 0]

[0050] Figure 3 is Figure 2 the top view partial schematic diagram in

[0051] Figure 4 is Figure 1 the front view cross-sectional view of

[0052] Figure 5 is Figure 1 the side view cross-sectional view of

[0053] Figure 6 is Figure 5 the enlarged structural schematic diagram of part A of

[0054] Figure 7 is Figure 5 the enlarged structural schematic diagram of part B of

[0055] Figure 8 is Figure 5 the enlarged structural schematic diagram of part C of

[0056] Figure 9 is Figure 5 the enlarged structural schematic diagram of part D of

[0057] Description of reference numerals: 1, bottom plate; 2, enclosing wall; 21, adjusting cavity; 22, connecting rod; 3, connecting unit; 31, arc-shaped cover; 32, right-angle plate; 33, connecting plate; 34, U-shaped strip; 35, hook strip; 4, top cover; 5, support column; 51, stress plate; 52, expanded panel; 6, anti-return unit; 61, anti-return column; 62, first spring; 63, pulling-back member; 631, limiting cylinder; 6311, strip-shaped groove; 6312, guiding groove; 632, second spring; 7, guiding frame; 8, inserting column; 9, guiding rod. Detailed implementation manners

[0058] The following further describes the present application in detail with reference to Figures 1 - 9 the accompanying drawings.

[0059] The embodiment of the present application discloses an assembled building structure and a construction method.

[0060] In a first aspect, the embodiment of the present application discloses an assembled building structure.

[0061] Referring to Figure 1 , an assembled building structure includes a bottom plate 1, enclosing walls 2 and a top cover 4. The bottom plate 1 is horizontally arranged. The number of enclosing walls 2 is four. The four enclosing walls 2 are respectively connected to the four sides of the bottom plate 1, and two adjacent enclosing walls 2 are vertically arranged. A lapping strip is integrally connected and protruded on the inner side of the enclosing wall 2. The bottom plate 1 is lapped on the lapping strip and fixed by bolts; the top cover 4 is covered on the side of the enclosing wall 2 away from the bottom plate 1. The bottom plate 1, the top cover 4 and the four enclosing walls 2 enclose a living space for people, and an entrance is arranged on one of the enclosing walls 2.

[0062] Referring to Figure 2 , in order to fix two adjacent enclosing walls 2, a connecting unit 3 is arranged between two adjacent enclosing walls 2. The connecting unit 3 includes a right-angle plate 32 and two connecting plates 33. The two connecting plates 33 are perpendicularly welded, and the right-angle plate 32 abuts against the connecting plates 33. After the right-angle plate 32 and the two connecting plates 33 abut, an inserting cavity is formed.

[0063] Referring to Figure 3 , a plurality of connecting rods 22 are welded on the side of the enclosing wall 2 close to the connecting plate 33. The plurality of connecting rods 22 are uniformly arranged in the height direction, and the axial direction of the connecting rod 22 is perpendicular to the connecting plate 33. Through holes for the connecting rods 22 to pass through are formed in the connecting plate 33. The connecting rods 22 pass through the connecting plate 33 through the through holes and enter the inserting cavity. In order to avoid interference between the connecting rods 22 on two adjacent enclosing walls 2, the connecting rods 22 on two adjacent enclosing walls 2 are arranged staggeredly in the height direction. The connecting rods 22 and the right-angle plate 32 are tightened by bolts, so as to realize the detachable connection and fixation of two adjacent enclosing walls 2.

[0064] Referring to Figure 3 , in order to reduce the erosion rate of the multiple bolts that tighten the connecting plate 33 and the right-angle plate 32 by external rainwater, the connecting unit 3 further includes an arc-shaped cover 31. The arc-shaped cover 31 is detachably and fixedly connected to the connecting plate 33. The arc-shaped cover 31 can be detachably and fixedly connected to the connecting plate 33 by bolts or can be detachably and fixedly connected by plugging. In this application, a U-shaped strip 34 is welded to the connecting plate 33, and hook-shaped strips 35 that are adapted to the shape and size of the U-shaped strip 34 are welded to both ends of the arc-shaped cover 31 close to the U-shaped strip 34. The long side directions of the U-shaped strip 34 and the hook-shaped strip 35 are both arranged along the height direction, and the U-shaped strip 34 and the hook-shaped strip 35 cooperate to achieve the detachable and fixed connection between the arc-shaped cover 31 and the connecting plate 33.

[0065] Referring to Figure 4 , in order to facilitate the realization of automatic falling support for foundation settlement, a support column 5 and a blocking and returning unit 6 are further included. The number of the support column 5 and the blocking and returning unit 6 is the same and both are multiple. One support column 5 and one blocking and returning unit 6 form a support structure, and multiple support structures are respectively arranged on the four enclosing walls 2; in this application, the number of support structures on each enclosing wall 2 can be three, can be four, or can be five. In this embodiment, the number of support structures on each enclosing wall 2 is five, and the number of support structures on the enclosing wall 2 provided with an entrance and exit is three.

[0066] Referring to Figure 4 , a plurality of adjusting cavities 21 are vertically formed in the enclosing wall 2, a guiding frame 7 is welded to the cavity wall of the adjusting cavity 21, the support column 5 is vertically arranged, and the support column 5 is slidably connected to the guiding frame 7.

[0067] Referring to Figure 5 and Figure 6 , the blocking and returning unit 6 includes blocking and returning columns 61. The number of the blocking and returning columns 61 is multiple. The multiple blocking and returning columns 61 are circumferentially distributed around the support column 5, and the multiple blocking and returning columns 61 are in the same horizontal height range. One end of the blocking and returning column 61 is hinged to the cavity wall of the adjusting cavity 21, and the other end is a movable end. In order to make the movable end of the blocking and returning column 61 automatically approach the support column 5, a first spring 62 is arranged between the blocking and returning column 61 and the cavity wall of the adjusting cavity 21. One end of the first spring 62 is welded to the blocking and returning column 61, and the other end is welded to the cavity wall of the adjusting cavity 21; in this application, the number of the blocking and returning columns 61 can be two, can be three, or can be four. In this embodiment, the number of the blocking and returning columns 61 is four.

[0068] Referring to Figure 6, In order to prevent the support column 5 from retracting after being stressed, a plurality of stress plates 51 are coaxially welded on the support column 5. The plurality of stress plates 51 are evenly distributed along the axial direction of the support column 5. The stress plates 51 are located above the guide frame 7. When the foundation settles, the gravity of the support column 5 and the stress plates 51 acts on the anti-return column 61, causing the movable end of the anti-return column 61 to move away from the support column 5 against the elastic force of the first spring 62. The support column 5 moves towards the ground along its own axial direction until the support column 5 abuts against the ground. At this time, the first spring 62 resets, causing the movable end of the anti-return column 61 to abut against the support column 5. When the bottom plate 1 tilts due to the settlement of the foundation, the support column 5 transfers the force to the anti-return column 61 through the stress plate 51 and finally to the enclosing wall 2. At this time, the support column 5 becomes a new stress support point.

[0069] Refer to Figure 6 and Figure 7 , In order to quickly reset the support column 5 when the prefabricated building structure is disassembled and recycled after use, the anti-return unit 6 further includes a pulling member 63. The pulling member 63 includes a limiting cylinder 631 and a plurality of second springs 632. A plurality of strip-shaped grooves 6311 for the anti-return column 61 to pass through are formed on the limiting cylinder 631. The strip-shaped grooves 6311 are formed along the axial direction of the support column 5.

[0070] Refer to Figure 7 , The plurality of second springs 632 are circumferentially distributed, and one end of the second spring 632 is welded to the guide frame 7, and the other end is welded to the lower end of the limiting cylinder 631. A plurality of plug columns 8 are connected to the top cover 4 by screws. The positions of the plug columns 8 correspond one-to-one to the positions of the adjustment cavities 21 on the enclosing wall 2. The plug columns 8 are inserted into the adjustment cavities 21 to realize the plug-in fixation of the top cover 4 and the enclosing wall 2.

[0071] Refer to Figure 6 and Figure 7 , When the plug column 8 is not inserted into the adjustment cavity 21, the second spring 632 applies a force to the limiting cylinder 631, and the limiting cylinder 631 moves away from the bottom plate 1, causing the lower edge of the strip-shaped groove 6311 to abut against the anti-return column 61. At this time, the anti-return column 61 overcomes the elastic force of the first spring 62 and remains in contact with the anti-return column 61, and the support column 5 is in a locked state; when the plug column 8 is inserted in place, the plug column 8 applies a force to the limiting cylinder 631, and the limiting cylinder 631 applies a force to the second spring 632, and the second spring 632 is compressed. At this time, the limiting cylinder 631 is staggered from the anti-return column 61, and the support column 5 is in an unlocked state.

[0072] Refer to Figure 8 , In order to better control the movement direction of the limiting cylinder 631, a guide groove 6312 is formed on the limiting cylinder 631 along the axial direction of the support column 5, and a guide rod 9 is welded on the wall of the adjustment cavity 21. The guide rod 9 passes through the guide groove 6312, and the guide rod 9 is slidably connected to the limiting cylinder 631

[0073] Reference Figure 9 In order to increase the force-bearing area between the support column 5 and the foundation, an expansion panel 52 is vertically welded to the end of the support column 5 away from the top cover 4. The expansion panel 52 is used to block the lower end opening of the adjustment cavity 21.

[0074] The implementation principle of an assembled building structure in an embodiment of the present application is as follows: first, the foundation where the assembled building is to be placed is compacted and leveled, then the base plate 1 is raised and placed flat on the foundation, and then four enclosing walls 2 equipped with support columns 5 and return-blocking units 6 are erected around the base plate 1 respectively, and three of the enclosing walls 2 are first placed in contact with the base plate 1.

[0075] Move the two connected connecting plates 33 toward the connection point of the two adjacent enclosing walls 2 until the connecting rod 22 on the enclosing wall 2 passes through the connecting plate 33, then abut the right-angle plate 32 against the connecting plate 33 to form an insertion cavity, and tighten the right-angle plate 32 and the connecting rod 22 with bolts to achieve the connection between the two adjacent enclosing walls 2, and then achieve a detachable and fixed connection between the arc cover 31 and the connecting plate 33 through the U-shaped strip 34 and the hook strip 35; remove the padding under the bottom plate 1, and then connect and fix the remaining enclosing wall 2 to the remaining enclosing walls 2 through the connecting unit 3.

[0076] Then, the top cover 4 is lifted by the lifting equipment, and the position of the top cover 4 is adjusted so that the plug-in column 8 is aligned with the position of the adjustment chamber 21, and then it is lowered until the plug-in column 8 is inserted into the adjustment chamber 21 and installed in place. At this time, the plug-in column 8 applies force to the limit cylinder 631, so that the limit cylinder 631 overcomes the elastic force of the second spring 632 and moves along the axial direction of the support column 5 toward the ground side, so that the limit cylinder 631 and the return column 61 are staggered. At this time, the limit cylinder 631 no longer applies force to the return column 61, and the return column 61 is only affected by the gravity of the support column 5 and the elastic force of the first spring 62, which makes it easier for the support column 5 to achieve automatic falling support when the foundation settles.

[0077] In a second aspect, the present application discloses a construction method for an assembled building structure, comprising:

[0078] S1: compacting and leveling the foundation;

[0079] S2: Placing the base plate 1: placing a plurality of raising blocks on the foundation, and then placing the base plate 1 flat on the plurality of raising blocks;

[0080] S3: Installing the enclosure wall 2: erect four enclosure walls 2 around the base plate 1 according to the preset installation positions, and make three of the enclosure walls 2 abut against the base plate 1 and then fix them through the connecting units 3, then remove the raising blocks, and then fix the last enclosure wall 2 through the connecting units 3;

[0081] S31: Enclosing wall 2 is erected;

[0082] S32: Tighten the connecting rod 22: Apply force to the two connected connecting plates 33 so that the connecting rod 22 on the enclosing wall 2 passes through the connecting plates 33, then apply force to the right-angle plate 32 so that the right-angle plate 32 abuts against both connecting plates 33, and then tighten the connecting rod 22 and the right-angle plate 32 with bolts;

[0083] S33: Insert the arc-shaped cover 31: Realize the insertion and fixation of the connecting plate 33 and the arc-shaped cover 31 through the U-shaped strip 34 and the hook strip 35;

[0084] S4: Construct the top cover 4: Place the top cover 4 on the four enclosing walls 2 and fix it;

[0085] S41: Lift the top cover 4;

[0086] S42: Adjust the attitude of the top cover 4 and lower it: Adjust the attitude of the top cover 4 so that the insertion post 8 corresponds to the adjustment cavity 21, and then lower it to insert the insertion post 8 in place.

[0087] The above are all the preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An assembled building structure, characterized in that: including a bottom plate (1), the bottom plate (1) being horizontally arranged; four enclosing walls (2), the four enclosing walls (2) being respectively connected to the four peripheries of the bottom plate (1), a connecting unit (3) being arranged between two adjacent enclosing walls (2), and the bottom plate (1) being connected to the enclosing walls (2), and an entrance and exit being arranged on one of the enclosing walls (2); a top cover (4), the top cover (4) being connected to the side of the enclosing walls (2) away from the bottom plate (1); a plurality of support columns (5), the support columns (5) being slidably connected to the enclosing walls (2), and the support columns (5) being vertically arranged with respect to the bottom plate (1), the plurality of support columns (5) being respectively arranged within the four enclosing walls (2); a plurality of anti-return units (6), the anti-return units (6) being arranged on the enclosing walls (2), and the anti-return units (6) being connected to the support columns (5) for realizing one-way movement of the support columns (5) along their own axes towards the ground; the anti-return unit (6) includes an anti-return column (61), a first spring (62) and a pulling-back member (63); the number of the anti-return columns (61) is multiple, an adjustment cavity (21) is formed in the enclosing wall (2), the multiple anti-return columns (61) are distributed circumferentially around the support column (5), and one end of the anti-return column (61) is hinged to the cavity wall of the adjustment cavity (21); the number of the first springs (62) is multiple, one end of the first spring (62) is connected to the anti-return column (61), and the other end is connected to the cavity wall of the adjustment cavity (21) for enabling the movable end of the anti-return column (61) to move towards the support column (5), and a plurality of force-receiving discs (51) are coaxially connected to the support column (5), the plurality of force-receiving discs (51) being distributed axially along the support column (5), and the gravity of the support column (5) can overcome the elastic force of the first spring (62) to realize the movement of the support column (5) towards the ground; the pulling-back member (63) is installed on the enclosing wall (2), and the pulling-back member (63) is connected to the anti-return column (61) for enabling the movable end of the anti-return column (61) to move towards the side away from the support column (5).

2. The prefabricated building structure according to claim 1, wherein: One end of the support column (5) away from the top cover (4) is vertically connected with an expansion panel (52), and the expansion panel (52) is used for blocking the lower opening of the adjustment cavity (21).

3. The prefabricated building structure according to claim 1, wherein: The pulling-back member (63) includes a limiting cylinder (631) and a plurality of second springs (632); a strip-shaped groove (6311) for the anti-return column (61) to pass through is formed in the limiting cylinder (631), and the opening direction of the strip-shaped groove (6311) is arranged along the axis of the support column (5); one end of the second spring (632) is connected to the cavity wall of the adjustment cavity (21), and the other end is connected to the lower end of the limiting cylinder (631) for cooperating with the top cover (4) to realize the axial movement of the limiting cylinder (631) along the support column (5).

4. The prefabricated building structure according to claim 3, characterized in that: A guide frame (7) is connected to the cavity wall of the regulating cavity (21), the support column (5) is slidably connected to the guide frame (7), and the end of the second spring (632) away from the limiting cylinder (631) is connected to the guide frame (7).

5. The prefabricated building structure according to claim 3, characterized in that: A plurality of plug-in columns (8) are connected to the top cover (4), and the plug-in columns (8) are inserted into the adjustment cavity (21) to achieve plug-in fixation with the enclosing wall (2); When the plug-in column (8) is not inserted into the adjustment cavity (21), the second spring (632) applies force to the limiting cylinder (631), so that the lower edge of the strip groove (6311) abuts against the return blocking column (61), and at this time the support column (5) is in a locked state; When the plug-in column (8) is plugged into place, the plug-in column (8) applies force to the second spring (632) through the limiting cylinder (631), so that the second spring (632) is compressed, and the limiting cylinder (631) and the return blocking column (61) are staggered. At this time, the support column (5) is in an unlocked state.

6. The prefabricated building structure according to claim 1, wherein: The connecting unit (3) comprises an arc-shaped cover (31), a right-angle plate (32) and two connecting plates (33); The two connecting plates (33) are vertically connected, the right-angle plate (32) abuts against the connecting plates (33), and the right-angle plate (32) and the two connecting plates (33) form an extending cavity; A plurality of connecting rods (22) are connected to one side of the enclosing wall (2), the plurality of connecting rods (22) are distributed along the height direction, and the connecting rods (22) are arranged through the connecting plate (33), the connecting rods (22) on two adjacent enclosing walls (2) are staggered, and the right-angle plate (32) and the connecting rods (22) are bolted together; The arc-shaped cover (31) is detachably connected to the two connecting plates (33), and the right-angle plate (32) is located in a cavity surrounded by the arc-shaped cover (31) and the two right-angle plates (32).

7. The prefabricated building structure according to claim 6, characterized in that: A U-shaped bar (34) is connected to the connecting plate (33), and hook bars (35) adapted to the U-shaped bar (34) are connected to both ends of the arc-shaped cover (31). The U-shaped bar (34) cooperates with the hook bars (35) to realize a detachable fixed connection between the arc-shaped cover (31) and the connecting plate (33).

8. A construction method of an assembled building structure, which adopts the assembled building structure described in any one of claims 1-7, characterized in that, include S1: compacting and leveling the foundation; S2: placing the base plate (1): placing a plurality of raising blocks on the foundation, and then placing the base plate (1) on the plurality of raising blocks; S3: Installation of the enclosing wall (2): erect four enclosing walls (2) around the base plate (1) according to the preset installation positions, and make three of the enclosing walls (2) contact the base plate (1) and then fix them through the connecting unit (3), then remove the raising block, and then fix the last enclosing wall (2) through the connecting unit (3); S4: Construction of the top cover (4): The top cover (4) is erected on the four enclosing walls (2) and fixed.

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