CN210104967U

CN210104967U - Assembled house structure

Info

Publication number: CN210104967U
Application number: CN201920442354.XU
Authority: CN
Inventors: 曹友国
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-02-21
Anticipated expiration: 2029-04-03

Abstract

The utility model discloses an assembled housing structure, including stand, crossbeam, ground steelframe, support frame, collar tie beam and be used for forming the main truss, the roof truss of roofing, the support frame is installed on the stand, and the stand is fixed subaerial, and lower part and middle part position between the stand at least are connected with the crossbeam through the connecting piece, and the ground steelframe is installed between the crossbeam that is located stand lower part position. The utility model is mainly suitable for low-rise fabricated building, the connection and fixation of the mechanisms such as the support frame, the ring beam and the like and the upright post can be realized through the prefabricated connecting pieces such as beam-column connecting pieces, end connecting pieces, support frame middle connecting pieces, ring beam butt-joint connecting pieces, ring beam external corner connecting pieces and the like, the installation requirements of different positions of the cross beam, the steel frame and the roof in the building frame can be respectively met, the installation operation is very convenient, the structural strength is high, and the whole can be repeatedly utilized; the connecting piece of bottom adds a chassis in addition, and the chassis passes through the bolt and fixes with ground, so improved the ground connection stability of whole house.

Description

Assembled house structure

Technical Field

The utility model relates to a building structure technical field, concretely relates to light steel construction for prefabricated building.

Background

The wood-cube prefabricated house, especially the low-rise prefabricated house, has the advantages of being capable of being built quickly, high in construction speed, good in ground environment adaptability, high in safety, capable of being used repeatedly and the like, and therefore the wood-cube prefabricated house is widely applied to the fields of low-rise villas, prefabricated customized houses, tourist attractions or camp hotels and the like. The prefabricated building is generally built with a steel structure frame, and then the structures such as the ground, the wall surface, the floor surface, the roof surface and the like are installed. Firstly, the roof is generally welded or directly screwed at each joint position during installation, the welding mode is complex to operate, professional welding personnel are needed, the disassembly is troublesome, and the structural stability of the direct screw fixing mode is not high enough; secondly, the universality of the fittings is not high, and the fittings cannot be used as standard parts, so that the construction and installation process is troublesome; thirdly, the bottom of the frame is directly supported on the ground, the ground supporting area is small, the frame is not stable enough, and the bottom of the frame is easy to sink into the ground for a long time on some grounds, so that potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to prior art's defect, provide a simple structure, construction simple to operate, assembly structure stabilize, the security is high, the assembly house structure that the accessory commonality is good.

In order to solve the technical problem, the utility model adopts the following technical scheme: an assembled building structure, its characterized in that: the roof truss structure comprises upright columns, a ground steel frame, roof support frames (such as triangular supports), ring beams and a main truss for forming a roof part, wherein the support frames are arranged on the upright columns of a house, the upright columns are fixed on the ground, at least the lower parts and the middle parts between the upright columns are connected with cross beams through connecting pieces, and the ground steel frame is arranged between the cross beams positioned at the lower parts of the upright columns; the main truss comprises a longitudinal rod and a transverse rod, and is arranged on the support frame and the ring beam; the top end of the upright column positioned at the outer side position is provided with an end part connecting piece, the top end of the upright column positioned at the middle position is provided with a support frame middle connecting piece, two ends of the support frame are respectively connected and fixed with the upright column positioned at the outer side position through the end part connecting piece, and the middle of the support frame is connected and fixed with the upright column positioned at the middle position through the support frame middle connecting piece; and two ends of the ring beam are also connected and fixed with the upright post positioned at the external corner through the end part connecting piece.

Furthermore, the upright columns and the cross beams positioned at the external corners are fixedly connected by beam-column bidirectional connecting pieces, and the beam-column bidirectional connecting pieces connect the cross beams into a right-angle corner structure; the upright columns and the cross beams positioned in the middle of the side walls are fixedly connected by beam-column three-way connecting pieces, and the beam-column three-way connecting pieces connect the cross beams into a T-shaped structure; the vertical columns and the cross beams in the middle of the house are fixedly connected through beam-column four-way connecting pieces, and the beam-column four-way connecting pieces connect the cross beams into a cross structure; the beam-column bidirectional connecting piece, the beam-column three-way connecting piece and the beam-column four-way connecting piece comprise main external members, and the bottoms of the main external members of the beam-column bidirectional connecting piece, the beam-column three-way connecting piece and the beam-column four-way connecting piece at the bottom end of each upright post are respectively fixed with a chassis, so that the whole house is fixed on the ground through the chassis, the center of the chassis is provided with a water and electricity hole, and the bottom water and electricity hole is communicated with the through hole of the main external member.

Preferably, a main external member of the beam-column bidirectional connecting piece is of a square frame structure, the main external member is of a non-closed structure with a longitudinal notch on the side wall, a through hole is formed in the main external member, openings are formed in two ends of the main external member, a plurality of screw holes are formed in the side wall of the main external member, and the vertical columns for forming the house frame penetrate through the through hole of the main external member and are fastened with the main external member by penetrating screws through the screw holes; a first connecting arm and a second connecting arm are arranged on the side wall of the main sleeve, the first connecting arm and the second connecting arm respectively extend outwards and perpendicularly from two different side wall surfaces of the main sleeve, screw holes are formed in the first connecting arm and the second connecting arm, the cross beam is spliced with the first connecting arm or the second connecting arm and penetrates through the screw holes to be screwed and fixed through screws, and the cross beam and the stand column are connected into a frame structure; the first connecting arm and the second connecting arm form a connecting piece of an integral assembly with the main assembly, the first connecting arm and the second connecting arm are both of hollow structures, water and electricity holes are formed in each side wall of the main assembly, and the through holes of the first connecting arm and the second connecting arm are aligned to the water and electricity holes to form an access structure of a water and electricity circuit.

Preferably, the main kit of the beam-column three-way connector has a nearly four-sided fully enclosed structure with three complete side walls, the fourth side wall being configured as a structure with an open longitudinal gap; the side wall of the main sleeve is provided with a first connecting arm, a second connecting arm and a third connecting arm which are respectively connected from the three side walls to form a T-shaped structure and are positioned on the same horizontal plane, the first connecting arm and the second connecting arm are respectively vertical to each other, and the first connecting arm and the third connecting arm are positioned on the same straight line but extend out reversely; after the upright post is inserted into the main external member, three side walls are attached to three surfaces of the upright post, and the upright post is fastened through screws; the side walls opposite to the three connecting arms are provided with water and electricity holes which are communicated with the through holes of the connecting arms.

Preferably, the main assembly of the beam-column four-way connecting piece has a nearly four-side fully-enclosed structure, and the main assembly has three complete side walls, and the fourth side wall is provided with an open longitudinal notch structure; the side walls of the main sleeve are provided with a first connecting arm, a second connecting arm, a third connecting arm and a fourth connecting arm, the first connecting arm, the second connecting arm, the third connecting arm and the fourth connecting arm are respectively connected out from the four side walls to form a cross-shaped structure and are positioned on the same horizontal plane, the first connecting arm is opposite to the third connecting arm, and the second connecting arm is opposite to the fourth connecting arm; after the upright post is inserted into the main external member, the four side walls are attached to the four sides of the upright post, and the upright post is fastened through screws; the side walls opposite to the four connecting arms are provided with water and electricity holes which are communicated with the through holes of the connecting arms.

Furthermore, the end connecting piece is provided with a vertical sleeve piece which can be inserted into the top end of the upright post, and the whole end connecting piece is inserted into the upright post through the vertical sleeve piece and is fastened by bolts; the top end of the vertical sleeve is welded with a supporting plate, the outer side end of the supporting plate is provided with a vertical baffle plate which is erected, the inner side surface of the supporting plate is provided with a ring beam fixing lug which extends out straightly, the bottoms of the two ends of the supporting frame are rested on the supporting plate and fastened by bolts, and the two ends of the supporting frame are laterally pressed on the inner surface of the vertical baffle plate and fastened by bolts; the end part of the ring beam is rested on the ring beam fixing lug and is fastened by a bolt, so that the installation of the ring beam and the supporting frame can be conveniently and quickly completed.

Further, for the situation of large span, one ring beam may not be long enough, at least two ring beams need to be butted, at this time, the middle butted position of the ring beams is fixedly connected with the upright post positioned in the middle through a ring beam butting connecting piece, the ring beam butting connecting piece is provided with a main sleeve, two sides of the bottom end of the main sleeve are respectively provided with a fixing lug, the ring beam butting connecting piece is sleeved at the top end of the upright post through the main sleeve and is fastened by a bolt, and the butting end of the ring beam is pressed on the fixing lug and is fastened by the bolt; the top welding of major component has the recess support piece towards the slope of roofing outside, and the both ends of recess support piece are the cell wall, and the medial surface of two cell walls respectively is fixed with a crossbeam through the bolt, and two crossbeams all rest head on the recess support piece.

Furthermore, the middle connecting piece of the support frame is provided with a vertical sleeve piece, and the whole middle connecting piece of the support frame is inserted into the upright post through the vertical sleeve piece and is fastened by bolts; the top welding of erecting the external member has the backup pad, and the middle bottom of support frame is rested on this backup pad and is fastened with the bolt, can improve the fixed knot of support frame like this.

Furthermore, in order to enable the house to have a more unique shape or specific functional requirements, side trusses can be further arranged, the side trusses are fixed between the side faces of the two main trusses, the two main trusses form an inverted V-shaped top, and the side trusses can be inclined towards the side faces; the main truss diagonal rods are arranged at the butt joint positions of the side surfaces of the main trusses and the side trusses, the side surfaces of the side trusses are provided with the side truss diagonal rods, and the main truss diagonal rods and the side truss diagonal rods are fixed in parallel; the side truss also comprises longitudinal rods and transverse rods, wherein each longitudinal rod is perpendicular to the ring beams on the same surface, and each transverse rod is parallel to the ring beams on the same surface.

Furthermore, a ring beam external corner connecting piece is fixed at the top end of the upright post at the external corner position where the main truss and the side truss are aligned, the ring beam external corner connecting piece is provided with a main sleeve, and the ring beam external corner connecting piece is sleeved and fixed at the top end of the upright post through the main sleeve and is fastened by bolts; the top end of the main sleeve is welded with a side diagonal support piece, the side diagonal support piece is symmetrically inclined towards two sides along a diagonal line, the bottom ends of the inclined planes at the two sides are respectively provided with an inclined blocking piece, a gap for the main truss diagonal rod and the side truss diagonal rod to penetrate is formed between the two inclined blocking pieces, and the main truss diagonal rod and the side truss diagonal rod are respectively pressed on the inclined planes of the side diagonal support piece; the end part of a cross rod close to the main truss diagonal rod and the end part of a cross rod close to the side truss diagonal rod are respectively pressed on the inclined surface of the side diagonal support and are respectively fastened with the inclined baffle pieces on the corresponding surface by bolts; two adjacent sides of the bottom end of the main external member are respectively provided with a fixing lug, and the tail end of the ring beam is pressed on the fixing lugs and fastened by bolts. This allows a stable mounting of the main girder and the side girders in a relatively simple manner.

Furthermore, the outer ends of the main truss diagonal rods and the side truss diagonal rods which are fixed in parallel are sealed and fixed through an eave connecting piece of the roof truss, the eave connecting piece of the roof truss is of an inclined V-shaped structure, and two sides of the eave connecting piece of the roof truss are fixed with the main truss diagonal rods and the side truss diagonal rods through bolts respectively, so that the stability of the mounting structure can be further improved between the main truss and the side trusses.

Furthermore, the end connecting piece, the middle connecting piece of the supporting frame, the ring beam butt-joint connecting piece and the ring beam external corner connecting piece are all provided with water and electricity holes, and the four connecting pieces are all formed by cutting a steel plate by laser, forming by cold bending and then welding. The eave connecting piece of the roof truss is formed by cutting a steel plate by laser and forming the steel plate by cold bending. The prefabricated connecting pieces made of the components have good universality, and can be directly purchased and used when different houses are installed without customization.

The utility model is mainly suitable for low-rise assembled houses, and the connection and fixation of mechanisms such as the support frame, the ring beam and the like with the upright post are realized through prefabricated connecting pieces such as end connecting pieces, support frame middle connecting pieces, ring beam butt joint connecting pieces, ring beam external corner connecting pieces and the like, so that the installation requirements of different positions of house roofs can be met respectively, the installation operation is very convenient, the structural strength is high, and the whole prefabricated connecting pieces can be reused; compared with the construction mode of the traditional house and the common light steel house, the construction method has the advantages that the production and installation period is short, various complicated construction procedures and workload are reduced, and the time and labor cost are greatly saved.

The connecting pieces between the beam columns can be sleeved on the main external member of the upright column through the design, two, three or four connecting arms extend out of the main external member along the vertical direction of the upright column to respectively form a two-way, three-way or four-way connecting piece, so that the mounting requirements of beams and steel frames at different positions in a house frame can be met respectively, the mounting operation is very convenient, the connection stability is high, and the reutilization property is good; and a chassis is additionally arranged on the connecting piece at the bottom, and the chassis is fixed with the ground through bolts, so that the grounding stability of the whole house is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the main roof truss of the present invention;

FIG. 3 is a schematic view of the roof support of the present invention;

FIG. 4 is a schematic view of the assembly of the roof side truss and the middle upright post of the present invention;

FIG. 5 is a schematic view of the assembly of the roof side truss, the roof main truss and the external corner upright post of the present invention;

FIG. 6 is a schematic structural view of a ring beam butt joint connector;

FIG. 7 is a schematic structural view of the external corner connector of the ring beam;

FIG. 8 is a schematic structural view of an eave attachment for an roof truss;

FIG. 9 is a schematic view of the construction of the end connector;

fig. 10 is a schematic structural view of a middle connecting piece of the support frame.

FIG. 11 is a block diagram of a beam-column bi-directional coupler;

FIG. 12 is a block diagram of another angle of the beam-column bi-directional coupler;

FIG. 13 is a view showing the structure of the beam-column bidirectional connector in cooperation with the chassis;

FIG. 14 is a block diagram of a three-way beam column connector;

FIG. 15 is a block diagram of the mating of the beam-column three-way connector with the chassis;

FIG. 16 is a block diagram of a four-way beam-column connector;

fig. 17 is a structural view of the beam-column four-way connector and the chassis.

In the figure, 1 is a vertical column, 2 is a support frame, 3 is a ring beam, 4 is a main truss, 5 is a side truss, 6 is a longitudinal rod, 7 is a transverse rod, 8 is a main truss diagonal rod, 9 is a side truss diagonal rod, 10 is an end connecting piece, 11 is a support frame middle connecting piece, 12 is a ring beam butt connecting piece, 13 is a ring beam external corner connecting piece, 14 is a roof truss eave connecting piece, 15 is a main sleeve piece, 16 is a groove supporting piece, 17 is a groove wall, 18 is a hydroelectric hole, 19 is a fixing lug, 20 is a main sleeve piece, 21 is a side diagonal supporting piece, 22 is a sloping baffle, 23 is a hydroelectric hole, 24 is a fixing lug, 25 is a vertical sleeve piece, 26 is a supporting plate, 27 is a vertical baffle, 28 is a ring beam fixing lug, 29 is a hydroelectric hole, 30 is a vertical sleeve piece, 31 is a supporting plate, 32 is a hydroelectric hole, 33 is a transverse beam, 34 is a ground steel frame, 35 is a beam column bidirectional connecting piece, 36 is a beam column connecting piece, 37 is, 38 is the main external member, 39 is the first connecting arm, 40 is the second connecting arm, 41 is the third connecting arm, 42 is the fourth connecting arm, 43 is the water and electricity hole, 44 is the chassis.

Detailed Description

In this embodiment, referring to fig. 1 to 17, the prefabricated building structure includes an upright column 1, a ground steel frame 34, a roof support frame 2 (e.g., triangular), a ring beam 3, and a main truss 4 for forming a roof part, where the support frame 2 is installed on the upright column 1, and the upright column 1 is fixed on the ground; the main truss 4 comprises a longitudinal rod 6 and a cross beam 7, the main truss 4 is arranged on the support frame 2 and the ring beam 2, the cross beams 33 are connected at the lower part and the middle part between the upright posts 1 through connecting pieces, and the ground steel frame 34 is arranged between the cross beams 33 at the lower part of the upright posts 1; the top ends of the upright columns (namely the upright columns matched with the two ends of the support frame) positioned at the outer side positions are provided with end part connecting pieces 10, the top ends of the upright columns (namely the upright columns matched with the middle positions of the support frame) positioned at the middle positions are provided with support frame middle connecting pieces 11, the two ends of the support frame 2 are respectively connected and fixed with the upright columns 13 at the outer side positions through the end part connecting pieces 10, and the middle of the support frame 2 is connected and fixed with the upright columns 1 at the middle positions through the support frame middle connecting pieces 11; the two ends of the ring beam 3 are also connected and fixed with the upright post 1 at the position of the external corner through the end connecting piece 10.

Referring to fig. 1, 8-17, the upright 1 and the cross beam 33 at the external corner are connected and fixed by a beam-column bidirectional connecting piece 35, and the beam-column bidirectional connecting piece 35 connects the cross beam 33 into a right-angle corner structure; the upright post 1 positioned in the middle of the side wall and the cross beam 33 are fixedly connected by a beam-column three-way connecting piece 36, and the cross beam 33 is connected into a T-shaped structure by the beam-column three-way connecting piece 36; the upright post 1 positioned in the middle of the house and the cross beam 33 are fixedly connected by a beam-column four-way connecting piece 37, and the beam-column four-way connecting piece 37 connects the cross beam 33 into a cross structure; the beam-column bidirectional connecting piece 35, the beam-column three-way connecting piece 36 and the beam-column four-way connecting piece 37 respectively comprise a main sleeve 38, the bottoms of the beam-column bidirectional connecting piece 35, the beam-column three-way connecting piece 36 and the beam-column four-way connecting piece 38 of the bottom end of each upright post 1 are respectively fixed with a chassis 44, so that the whole house is fixed on the ground through the chassis 44 (and bolts), the center of the chassis 44 is provided with a water and electricity hole 43, and the bottom water and electricity hole 43 is communicated with a through hole of the main sleeve 38.

Referring to fig. 11, 12 and 13, the main sleeve 38 of the beam-column bidirectional connecting member 35 is a square frame structure, the main sleeve 38 is a non-closed structure with a longitudinal gap on a side wall, a through hole is formed inside the main sleeve 38, two ends of the main sleeve are open, a plurality of screw holes are formed on the side wall of the main sleeve 38, and the upright 1 for forming the house frame passes through the through hole of the main sleeve 38 and is fastened with the upright 1 by passing a screw through the screw hole; a first connecting arm 39 and a second connecting arm 40 are arranged on the side wall of the main sleeve 38, the first connecting arm 39 and the second connecting arm 40 respectively extend outwards and perpendicularly from two different side wall surfaces of the main sleeve 38, screw holes are formed in the first connecting arm 39 and the second connecting arm 40, the cross beam 33 is inserted into the first connecting arm 39 or the second connecting arm 40 and penetrates through the screw holes through screws to be screwed and fixed, and the cross beam 33 and the upright post 1 are connected into a frame structure; the first connecting arm 39 and the second connecting arm 40 form a connecting piece of an integral component with the main assembly 38, the first connecting arm 39 and the second connecting arm 40 are both of a hollow structure, each side wall of the main assembly 38 is provided with a hydropower hole 43, and the through holes of the first connecting arm 39 and the second connecting arm 40 are aligned with the hydropower holes 43 to form a hydropower circuit access structure.

Referring to fig. 14 and 15, the main assembly 38 of the beam-column three-way connector 36 has a nearly four-sided fully enclosed structure with three complete sidewalls, the fourth being configured with an open longitudinal gap; a first connecting arm 39, a second connecting arm 40 and a third connecting arm 41 are arranged on the side wall of the main sleeve 38, the three connecting arms are identical in structure and are respectively connected out from the three side walls to form a T-shaped structure and are positioned on the same horizontal plane, the first connecting arm 39 is vertical to the second connecting arm 40, the third connecting arm 41 is vertical to the second connecting arm 40, and the first connecting arm 39 and the third connecting arm 41 are positioned on the same straight line but extend out reversely; after the upright post 1 is inserted into the main external member 38, three side walls are attached to three surfaces of the upright post, and the upright post 1 is fastened through screws; the side walls opposite to the three connecting arms are provided with water and electricity holes 43, and the water and electricity holes 43 are communicated with the through holes of the connecting arms.

Referring to fig. 16 and 17, the main assembly 38 of the beam-column four-way connecting member 37 has a nearly four-side fully-enclosed structure, which has three complete side walls, and the fourth side wall is provided with an open longitudinal notch structure; a first connecting arm 39, a second connecting arm 40, a third connecting arm 41 and a fourth connecting arm 42 are arranged on the side wall of the main sleeve 38, the four connecting arms are identical in structure and are respectively connected out from the four side walls to form a cross-shaped structure and are positioned on the same horizontal plane, the first connecting arm 39 is opposite to the third connecting arm 41, and the second connecting arm 40 is opposite to the fourth connecting arm 42; after the upright post 1 is inserted into the main sleeve 38, the four side walls are attached to the four sides of the upright post 1, and the upright post 1 is fastened through screws; the side walls opposite to the four connecting arms are provided with water and electricity holes which are communicated with the through holes of the connecting arms.

Referring to fig. 3, 9 and 10, the end connector 10 has a leg 25 that can be inserted into the top end of the upright 1, and the entire end connector 10 is inserted into the upright 1 through the leg 25 and fastened with bolts; a supporting plate 26 is welded at the top end of the vertical sleeve member 25, an upright vertical baffle plate 27 is arranged at the outer side end of the supporting plate 26, a straight extending ring beam fixing lug 28 is formed at the inner side surface of the supporting plate 26, the bottoms of the two ends of the supporting frame 2 are rested on the supporting plate 26 and fastened by bolts, and the two end parts of the supporting frame 2 are laterally pressed on the inner surface of the upright baffle plate 27 and fastened by bolts; the end part of the ring beam 3 is rested on the ring beam fixing lug 28 and is fastened by a bolt, so that the installation of the ring beam 3 and the support frame 2 can be conveniently and quickly completed.

For the situation of large span, one ring beam 3 may not be long enough, at least two ring beams 3 need to be butted, at this time, the middle butted position of the ring beams 3 is fixedly connected with the upright post 1 positioned in the middle through a ring beam butting connector 12, referring to fig. 4, 6-8, the ring beam butting connector 12 is provided with a main sleeve 15, two sides of the bottom end of the main sleeve 15 are respectively provided with a fixing lug 19, the ring beam butting connector 12 is sleeved at the top end of the upright post 1 through the main sleeve 15 and is fastened by a bolt, and the butted end of the ring beam 3 is pressed on the fixing lug 19 and is fastened by a bolt; the top end of the main external member 15 is welded with a groove support member 16 inclined towards the outer side of the roof, two ends of the groove support member 16 are groove walls 17, the inner side surfaces of the two groove walls 17 are respectively fixed with a cross beam 7 through bolts, and the two cross beams 7 are pressed on the groove support member 12.

The middle connecting piece 11 of the support frame is provided with a vertical sleeve piece 30, and the whole middle connecting piece 11 of the support frame is inserted into the upright post 1 through the vertical sleeve piece 30 and is fastened by bolts; the top end of the vertical sleeve member 30 is welded with a support plate 31, and the middle bottom of the support frame 2 is rested on the support plate 31 and fastened by bolts, so that the fixing structure of the support frame 3 can be improved.

In order to make the house have more unique modeling or special function requirements, a side truss 5 can be arranged, referring to fig. 1 and 5, the side truss 5 is fixed between the side surfaces of the two main trusses 4, the two main trusses 4 form an inverted V-shaped top, and the side truss 5 can be inclined towards the side surface; a main truss diagonal rod 8 is arranged at the butt joint position of the side surface of the main truss 4 and the side truss 5, a side truss diagonal rod 9 is arranged at the side surface of the side truss 5, and the main truss diagonal rod 8 and the side truss diagonal rod 9 are fixed in parallel; the side truss 5 also comprises longitudinal bars 6 and transverse bars 7, wherein each longitudinal bar 6 is perpendicular to the same plane of the ring beam 3, and the transverse bars 7 are parallel to the same plane of the ring beam 3.

The top end of the upright post 1 is fixed with a ring beam external corner connecting piece 13 at the external corner position where the main truss 4 is aligned with the side truss 5, the ring beam external corner connecting piece 13 is provided with a main sleeve 20, and the ring beam external corner connecting piece 13 is sleeved and fixed at the top end of the upright post 1 through the main sleeve 20 and is fastened by bolts; the top end of the main sleeve 20 is welded with a side diagonal support 21, the side diagonal support 21 is symmetrically inclined towards two sides along a diagonal line, the bottom ends of the inclined planes at two sides are respectively provided with an inclined baffle 22, a gap for the main truss diagonal rod 8 and the side truss diagonal rod 9 to pass through is formed between the two inclined baffles 22, and the main truss diagonal rod 8 and the side truss diagonal 9 are respectively pressed on the inclined planes of the side diagonal support 21; the end part of a cross rod 7 close to the main truss diagonal rod 8 and the end part of a cross rod 7 close to the side truss diagonal rod 9 are respectively pressed on the inclined surface of the side diagonal support 21 and are respectively fastened with the inclined baffle 22 on the corresponding surface by bolts; two adjacent sides of the bottom end of the main sleeve 20 are respectively provided with a fixing lug 24, and the tail end of the ring beam 3 is pressed on the fixing lugs 24 and is fastened by bolts. This allows a stable mounting of the main girder 4 and the side girders 5 to be formed in a relatively simple manner.

The outer ends of the main truss diagonal rods 8 and the side truss diagonal rods 9 which are fixed in parallel are sealed and fixed through an eave connecting piece 14 of the roof truss, the eave connecting piece 14 of the roof truss is of an inclined V-shaped structure, and two sides of the eave connecting piece are fixed with the main truss diagonal rods 8 and the side truss diagonal rods 9 through bolts respectively, so that the stability of the mounting structure can be further improved between the main truss 4 and the side truss 5.

The end connecting piece 10, the support frame middle connecting piece 11, the ring beam butt-joint connecting piece 12 and the ring beam external corner connecting piece 13 are respectively provided with water and

electricity holes

29, 32, 18 and 23, and the four are all formed by cutting a steel plate by laser, forming by cold bending and welding. The roof truss cornice connecting piece 14 is formed by cutting a steel plate by laser and forming the steel plate by cold bending. The prefabricated connecting pieces made of the components have good universality, and can be directly purchased and used when different houses are installed without customization.

The installation sequence is as follows: the method comprises the following steps that an upright post 1 (service holes of the upright post are generated in the forming process according to a design drawing, connecting pieces for connecting the upright post 1 with a foundation, a beam, a roof truss and a ring beam are assembled in a factory) (the assembly of the upright post 1 with the foundation, the beam, the roof truss and the ring beam is completed in the factory) (a beam bolt hole is generated in the forming process according to the design drawing, beam and beam connecting pieces are assembled in the factory) (a ground steel frame 34 (a steel frame rod bolt and a nail hole are generated in the forming process, the steel frame is assembled into a whole roof truss in the factory) (a ring beam 3 → a support frame 2 (the roof truss can be assembled in the factory or on the site, and the roof truss can be assembled in the factory or on the site) and the roof.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.

Claims

1. An assembled building structure, its characterized in that: the roof truss structure comprises upright posts, cross beams, a ground steel frame, roof truss support frames, ring beams and a main truss for forming a roof part, wherein the support frames are arranged on the upright posts; the main truss comprises a longitudinal rod and a transverse rod, and is arranged on the support frame and the ring beam; the top end of the upright column positioned at the outer side position is provided with an end part connecting piece, the top end of the upright column positioned at the middle position is provided with a support frame middle connecting piece, two ends of the support frame are respectively connected and fixed with the upright column positioned at the outer side position through the end part connecting piece, and the middle of the support frame is connected and fixed with the upright column positioned at the middle position through the support frame middle connecting piece; and two ends of the ring beam are also connected and fixed with the upright post positioned at the external corner through the end part connecting piece.

2. The modular building structure of claim 1, wherein: the upright columns and the cross beams positioned at the external corners are connected and fixed by beam-column bidirectional connecting pieces, and the beam-column bidirectional connecting pieces connect the cross beams into a right-angle corner structure; the upright columns and the cross beams positioned in the middle of the side walls are fixedly connected by beam-column three-way connecting pieces, and the beam-column three-way connecting pieces connect the cross beams into a T-shaped structure; the vertical columns and the cross beams in the middle of the house are fixedly connected through beam-column four-way connecting pieces, and the beam-column four-way connecting pieces connect the cross beams into a cross structure; the beam-column bidirectional connecting piece, the beam-column three-way connecting piece and the beam-column four-way connecting piece comprise main external members, and the bottoms of the main external members of the beam-column bidirectional connecting piece, the beam-column three-way connecting piece and the beam-column four-way connecting piece at the bottom end of each upright post are respectively fixed with a chassis, so that the whole house is fixed on the ground through the chassis, the center of the chassis is provided with a water and electricity hole, and the bottom water and electricity hole is communicated with the through hole of the main external member.

3. The modular building structure of claim 2, wherein: the main external member of the beam-column bidirectional connecting piece is of a square frame structure, the main external member is of an unsealed structure with a longitudinal notch on the side wall, a through hole is formed in the main external member, openings are formed in two ends of the main external member, a plurality of screw holes are formed in the side wall of the main external member, the stand columns for forming the house frame penetrate through the through hole of the main external member, and the main external member and the stand columns are fastened by penetrating screws through the screw holes; a first connecting arm and a second connecting arm are arranged on the side wall of the main sleeve, the first connecting arm and the second connecting arm respectively extend outwards and perpendicularly from two different side wall surfaces of the main sleeve, screw holes are formed in the first connecting arm and the second connecting arm, the cross beam is spliced with the first connecting arm or the second connecting arm and penetrates through the screw holes to be screwed and fixed through screws, and the cross beam and the stand column are connected into a frame structure; the first connecting arm and the second connecting arm form a connecting piece of an integral assembly with the main assembly, the first connecting arm and the second connecting arm are both of hollow structures, water and electricity holes are formed in each side wall of the main assembly, and the through holes of the first connecting arm and the second connecting arm are aligned to the water and electricity holes to form an access structure of a water and electricity circuit.

4. The modular building structure of claim 2, wherein: the main assembly of the beam-column three-way connecting piece is of a structure which is almost completely surrounded by four sides and is provided with three complete side walls, and the fourth side wall is of a structure with an open longitudinal notch; the side wall of the main sleeve is provided with a first connecting arm, a second connecting arm and a third connecting arm which are respectively connected out of the three side walls to form a T-shaped structure and are positioned on the same horizontal plane, the first connecting arm and the second connecting arm are respectively vertical to each other, and the first connecting arm and the third connecting arm are positioned on the same straight line but oppositely extend out; after the upright post is inserted into the main external member, three side walls are attached to three surfaces of the upright post, and the upright post is fastened through screws; the side walls opposite to the three connecting arms are provided with water and electricity holes which are communicated with the through holes of the connecting arms.

5. The modular building structure of claim 2, wherein: the main sleeve of the beam-column four-way connecting piece is of a structure which is almost completely surrounded by four sides and is provided with three complete side walls, and the fourth side wall is of a structure with an open longitudinal notch; the side walls of the main sleeve are provided with a first connecting arm, a second connecting arm, a third connecting arm and a fourth connecting arm, the first connecting arm, the second connecting arm, the third connecting arm and the fourth connecting arm are respectively connected out from the four side walls to form a cross-shaped structure and are positioned on the same horizontal plane, the first connecting arm is opposite to the third connecting arm, and the second connecting arm is opposite to the fourth connecting arm; after the upright post is inserted into the main external member, the four side walls are attached to the four sides of the upright post, and the upright post is fastened through screws; the side walls opposite to the four connecting arms are provided with water and electricity holes which are communicated with the through holes of the connecting arms.

6. The modular building structure of claim 1, wherein: the end connecting piece is provided with a vertical sleeve piece which can be inserted into the top end of the upright post, and the whole end connecting piece is inserted into the upright post through the vertical sleeve piece and is fastened by bolts; the top end of the vertical sleeve is welded with a supporting plate, the outer side end of the supporting plate is provided with a vertical baffle plate which is erected, the inner side surface of the supporting plate is provided with a ring beam fixing lug which extends out straightly, the bottoms of the two ends of the supporting frame are rested on the supporting plate and fastened by bolts, and the two ends of the supporting frame are laterally pressed on the inner surface of the vertical baffle plate and fastened by bolts; the ends of the ring beam are rested on the ring beam fixing lugs and are fastened by bolts.

7. The modular building structure of claim 1, wherein: the ring beam is fixedly connected with the upright post positioned in the middle through a ring beam butt joint connecting piece at the middle butt joint position, the ring beam butt joint connecting piece is provided with a main external member, two sides of the bottom end of the main external member are respectively provided with a fixing lug, the ring beam butt joint connecting piece is sleeved at the top end of the upright post through the main external member and is fastened by a bolt, and the butt joint end of the ring beam is pressed on the fixing lug and is fastened by the bolt; the top welding of major component has the recess support piece towards the slope of roofing outside, and the both ends of recess support piece are the cell wall, and the medial surface of two cell walls respectively is fixed with a crossbeam through the bolt, and two crossbeams all rest head on the recess support piece.

8. The modular building structure of claim 1, wherein: the middle connecting piece of the support frame is provided with a vertical sleeve piece, and the whole middle connecting piece of the support frame is inserted into the upright post through the vertical sleeve piece and is fastened by bolts; the top of the vertical sleeve piece is welded with a supporting plate, and the bottom of the middle of the supporting frame is rested on the supporting plate and fastened by bolts.

9. The modular building structure of claim 1, wherein: the side truss structure is characterized by further comprising side trusses, wherein the side trusses are fixed between the side faces of the two main trusses, main truss inclined rods are arranged at the butt joint positions of the side faces of the main trusses and the side trusses, side truss inclined rods are arranged on the side faces of the side trusses, and the main truss inclined rods and the side truss inclined rods are fixed in parallel; the side truss also comprises longitudinal rods and transverse rods, wherein each longitudinal rod is perpendicular to the ring beams on the same surface, and each transverse rod is parallel to the ring beams on the same surface.

10. The modular building structure of claim 9, wherein: the top end of the upright post at the position of the external corner at the alignment position of the main truss and the side truss is fixedly provided with a ring beam external corner connecting piece, the ring beam external corner connecting piece is provided with a main sleeve, and the ring beam external corner connecting piece is sleeved and fixed at the top end of the upright post through the main sleeve and is fastened by bolts; the top end of the main sleeve is welded with a side diagonal support piece, the side diagonal support piece is symmetrically inclined towards two sides along a diagonal line, the bottom ends of the inclined planes at the two sides are respectively provided with an inclined blocking piece, a gap for the main truss diagonal rod and the side truss diagonal rod to penetrate is formed between the two inclined blocking pieces, and the main truss diagonal rod and the side truss diagonal rod are respectively pressed on the inclined planes of the side diagonal support piece; the end part of a cross rod close to the main truss diagonal rod and the end part of a cross rod close to the side truss diagonal rod are respectively pressed on the inclined surface of the side diagonal support and are respectively fastened with the inclined baffle pieces on the corresponding surface by bolts; two adjacent sides of the bottom end of the main external member are respectively provided with a fixing lug, and the tail end of the ring beam is pressed on the fixing lugs and fastened by bolts; the end connecting piece, the middle connecting piece of the support frame, the ring beam butt-joint connecting piece and the ring beam external corner connecting piece are all provided with water and electricity holes, and the four connecting pieces are all formed by cutting a steel plate by laser, forming by cold bending and then welding;

the outer ends of the main truss diagonal rods and the side truss diagonal rods which are fixed in parallel are sealed and fixed through an eave connecting piece of the roof truss, the eave connecting piece of the roof truss is of an inclined V-shaped structure, and two sides of the eave connecting piece are fixed with the main truss diagonal rods and the side truss diagonal rods through bolts respectively; the eave connecting piece of the roof truss is formed by cutting a steel plate by laser and forming the steel plate by cold bending.