Self-aligning assembled and synthesized building structure

Abstract

The utility model belongs to the technical field of building components, and particularly relates to an assembled and combined building structure capable of automatically aligning, which comprises a first building unit, a second building unit, a third building unit, a fourth building unit, a fifth building unit and a sixth building unit, the first upper square frame comprises two first X-direction upper transverse rods which are parallel to each other, the first lower square frame comprises two first X-direction lower transverse rods which are parallel to each other, and each first stand column group comprises two first stand columns which are parallel to each other; the second building unit comprises a second upper square frame, a second lower square frame, two parallel second stand column groups and at least one middle stand column group; the end connecting pieces and the middle connecting pieces are used for transversely splicing two adjacent first building units or transversely splicing the first building units and the second building units; by adopting the structure, compared with the prior art, the building structure disclosed by the utility model is convenient to quickly align, does not need to be welded, and is convenient to quickly mount and dismount.

Description

TECHNICAL FIELD

[0001] The utility model relates to building component technical field, specifically point to a kind of self-alignment's assembled synthetic building structure. BACKGROUND

[0002] At present, MIC (assembled synthetic building method) is by factory to the precast module of production is transported to ground assembly, but still rely on welding connection finally, this practice is not conducive to shorter construction period, and use a large number of welding workers, there are many uncertainties for the accuracy and completion time of construction project, in turn affect worker safety. At the same time, the module of prefabrication is made of metal pipe, so the self-weight capacity is not high, so the engineering scale is relatively small, and the height of the building is also limited. SUMMARY

[0003] In order to overcome the deficiencies of the prior art, the utility model aims to provide a kind of self-alignment's assembled synthetic building structure.

[0004] Technical scheme: a kind of self-alignment's assembled synthetic building structure, comprising: first building unit, it is the square frame formed by the first upper frame, the first lower frame and two groups of first vertical column parallel to each other;The first upper frame includes two first X direction upper horizontal rods parallel to each other, and the first lower frame includes two first X direction lower horizontal rods parallel to each other, and each first vertical column group includes two first vertical columns parallel to each other;Further comprising: second building unit, it includes second upper frame, second lower frame, two groups of second vertical column parallel to each other and vertically connected with the two ends of second upper frame and second lower frame respectively, and at least one group of intermediate vertical column group is vertically connected with second upper frame and second lower frame respectively and located between two groups of second vertical column group;End connector, intermediate connector for transversely splicing two adjacent first building units or first building unit and second building unit.

[0005] Preferably, the second upper frame includes two second X direction upper horizontal rods parallel to each other, and the second lower frame includes two second X direction lower horizontal rods parallel to each other, and each second vertical column group includes two second vertical columns parallel to each other, and each second vertical column is arranged between second X direction upper horizontal rod and second X direction lower horizontal rod on the same side and is vertically connected with the end of the two;The intermediate vertical column group includes two intermediate vertical columns parallel to each other, and each intermediate vertical column is arranged between second X direction upper horizontal rod and second X direction lower horizontal rod on the same side and is vertically connected with the two;The second building unit is in the form of square frame.

[0006] Preferably, one end of the first building unit and the second building unit is further provided with two square side frames arranged vertically.

[0007] Preferably, the square side frame comprises an upper side horizontal rod group and a lower side horizontal rod group arranged vertically and parallel to each other, the upper side horizontal rod group comprises two X-direction upper side horizontal rods arranged parallel to each other, and the lower side horizontal rod group comprises two X-direction lower side horizontal rods arranged parallel to each other.

[0008] Preferably, the end of the upper side horizontal rod group and the lower side horizontal rod group of each square side frame arranged on the first building unit is fixedly connected to the outer surface of two first vertical columns of one of the first vertical column groups, the two X-direction upper side horizontal rods of the square side frame arranged above are of the same height as the two first X-direction upper horizontal rods, and the two X-direction lower side horizontal rods of the square side frame arranged below are of the same height as the two first X-direction lower horizontal rods; the end of the upper side horizontal rod group and the lower side horizontal rod group of each square side frame arranged on the second building unit is fixedly connected to the outer surface of two second vertical columns of one of the second vertical column groups, the two X-direction upper side horizontal rods of the square side frame arranged above are of the same height as the two second X-direction upper horizontal rods, and the two X-direction lower side horizontal rods of the square side frame arranged below are of the same height as the two second X-direction lower horizontal rods.

[0009] Preferably, the end connecting piece comprises an end vertical plate, a first horizontal plate and a first vertical plate arranged on one surface of the end vertical plate and perpendicular to the surface; the first horizontal plate and the first vertical plate are perpendicular to each other; at least two first plug-in holes are arranged in the first horizontal plate, and at least one first plug-in hole is arranged on each side of the first vertical plate.

[0010] Preferably, the end vertical plate is a square plate or an L-shaped plate; the first horizontal plate and the first vertical plate are perpendicular to each other to form four quadrant spaces, and the cross-sectional profile of one of the quadrant spaces is consistent with the inner profile of the L-shaped plate.

[0011] Preferably, the middle connecting piece comprises a middle vertical plate and a middle horizontal plate which are perpendicular to each other and fixedly connected; at least two middle plug-in holes are arranged in the middle horizontal plate, and at least one middle plug-in hole is arranged on each side of the middle vertical plate.

[0012] Preferably, the middle plug-in holes are three, one middle plug-in hole is arranged on one side of the middle vertical plate, and two middle plug-in holes are arranged on the other side of the middle vertical plate.

[0013] Preferably, the upper end of each first vertical column, second vertical column and middle vertical column is provided with a plug-in column, and the lower end is provided with a longitudinal plug-in head.

[0014] Preferably, the plug-in column comprises a square base and a four-prism table arranged on the base; the base and the four-prism table are integrally formed.

[0015] Preferably, the longitudinal plug-in head is provided with a plug-in hole, and the plug-in hole comprises a containing part for containing the four-prism table.

[0016] Preferably, the plug-in column, longitudinal plug-in head are all made by CNC machining center.

[0017] Technical effects: the building structure of the utility model, including first building unit, second building unit, both can adjust its specific structure according to actual needs, namely, both exist different structures, at the same time, the upper end of each first vertical column, second vertical column, intermediate vertical column is equipped with plug-in column, and the lower end is equipped with longitudinal plug-in head, plug-in column, longitudinal plug-in head are cut and processed by CNC machining center, so that the two units are quickly aligned and finally assembled by screw, and according to design requirements, a plurality of first building units, second building units are horizontally (horizontal direction) aligned, combined and spliced, and then vertically aligned, combined and spliced, so that complete building structure can be quickly obtained, therefore, compared with prior art, the building structure of the utility model is convenient for quick alignment, does not need welding, and is convenient for quick installation and disassembly. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the building structure perspective view of the utility model embodiment;

[0019] Figure 2 It is the building structure partial enlarged view A of Figure 1 ;

[0020] Figure 3 It is the end connecting piece use state perspective view of the utility model embodiment;

[0021] Figure 4 It is the end connecting piece front view perspective view of the utility model embodiment;

[0022] Figure 5 It is the end connecting piece rear view perspective view of the utility model embodiment;

[0023] Figure 6 It is the end connecting piece top view of the utility model embodiment;

[0024] Figure 7 It is the building structure partial enlarged view B of Figure 1 ;

[0025] Figure 8 It is the end connecting piece deformation structure bottom view perspective view of the utility model embodiment;

[0026] Figure 9 It is the end connecting piece deformation structure top view perspective view of the utility model embodiment;

[0027] Figure 10 It is the end connecting piece deformation structure top view of the utility model embodiment;

[0028] Figure 11 for Figure 1 Enlarged view of the building structure (C);

[0029] Figure 12 This is a top-view perspective view of the intermediate connecting member in an embodiment of the present utility model;

[0030] Figure 13 This is a perspective view of the intermediate connecting member in an embodiment of the present utility model, viewed from below.

[0031] Figure 14 This is a top view of the intermediate connecting member in an embodiment of the present utility model;

[0032] Figure 15 for Figure 1 Enlarged view of the building structure (D);

[0033] Figure 16 This is a top-view perspective view of the deformed structure of the intermediate connecting member in an embodiment of this utility model;

[0034] Figure 17 This is a perspective view from below of the deformed structure of the intermediate connecting member in an embodiment of the present utility model.

[0035] Figure 18 This is a top view of a modified structure of the intermediate connector in an embodiment of this utility model;

[0036] Figure 19 This is a three-dimensional view of the vertically spliced ​​building structure of this utility model;

[0037] Figure 20 for Figure 19 A partial enlarged view of the building structure, E;

[0038] Figure 21 for Figure 19 A magnified view of a portion of the building structure, shown in Figure F.

[0039] Reference numerals: First building unit -1, First upper frame -101, First X-up horizontal bar -101a, First lower frame -102, First X-down horizontal bar -102a, First column group -103, First column -103a; Second building unit -2, Second upper frame -201, Second X-up horizontal bar -201a, Second lower frame -202, Second X-down horizontal bar -202a, Second column group -203, Second column -203a, Middle column group -204, Middle column -204a, End connector -3. End upright plate-301, first horizontal plate-302, first insertion hole-302a, first upright plate-303, intermediate connector-4, intermediate upright plate-401, intermediate horizontal plate-402, intermediate insertion hole-402a, square side frame-5, upper horizontal bar group-501, X-upward horizontal bar-501a, Y-upward horizontal bar-501b, lower horizontal bar group-502, X-downward horizontal bar-502a, Y-downward horizontal bar-502b, insertion post-6, block-shaped base-601, quadrangular truncated pyramid-602, longitudinal insertion connector-7. Detailed Implementation

[0040] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0041] like Figures 1-18 As shown, this utility model embodiment provides a self-aligning and assembling building structure, including: a first building unit 1, which is a square frame enclosed by a first upper frame 101, a first lower frame 102 and two sets of first columns 103 that are parallel to each other; the first upper frame includes two first X-shaped upward horizontal bars 101a that are parallel to each other, the first lower frame 102 includes two first X-shaped downward horizontal bars 102a that are parallel to each other, and each set of first columns includes two first columns 103a that are parallel to each other; it also includes: a second building unit 2, which includes a second upper frame 201 and a second lower frame 202 that are parallel to each other, two sets of second columns 203 that are parallel to each other and perpendicular to the ends of the second upper frame and the second lower frame respectively, at least one set of intermediate columns 204 that are perpendicular to the ends of the second upper frame and the second lower frame respectively and located between the two sets of second columns 203; end connectors 3 and intermediate connectors 4 for horizontal splicing of two adjacent first building units 1 or first building units and second building units 2.

[0042] Specifically, such as Figure 1As shown in the figure, the second upper frame 201 includes two second X-direction upper crossbars 201a parallel to each other, the second lower frame 202 includes two second X-direction lower crossbars 202a parallel to each other, each second column group 203 includes two second columns 203a parallel to each other, and each second column is arranged between the second X-direction upper crossbar 201a and the second X-direction lower crossbar 202a on the same side and is connected perpendicularly to the end of the two crossbars; the intermediate column group 204 includes two intermediate columns 204a parallel to each other, and each intermediate column is arranged between the second X-direction upper crossbar 201a and the second X-direction lower crossbar 202a on the same side and is connected perpendicularly to the two crossbars; the second building unit 2 is in the shape of a square frame.

[0043] In order to realize the rapid splicing of the plurality of first building units 1 and the second building unit 2 in the horizontal direction and the vertical direction, the upper end of each first column 103a, second column 203a, and intermediate column 204a is provided with a plug-in column 6, and the lower end is provided with a longitudinal plug-in head 7. At the same time, in order to improve the strength of the building structure, some of the first columns 103a and the second columns 203a need to be reinforced by pouring concrete.

[0044] As shown in the figure, Figure 1 The number of intermediate column groups 204 in the second building unit 2 can be adjusted according to actual conditions, such as in the building structure of the embodiment, both the case of arranging one intermediate column group and the case of arranging two intermediate column groups are included; in order to expand the functions of the first building unit 1 and the second building unit 2, two square side frames 5 arranged in an upper and lower manner are further arranged at one end of the first building unit 1 and the second building unit 2.

[0045] As shown in the figure, Figure 1 Specifically, the square side frame 5 includes an upper side crossbar group 501 and a lower side crossbar group 502 arranged in parallel and in an upper and lower manner, the upper side crossbar group 501 includes two X-direction upper side crossbars 501a parallel to each other and a Y-direction upper side crossbar 501b for connecting the two X-direction upper side crossbars 501a, and the lower side crossbar group 502 includes two X-direction lower side crossbars 502a parallel to each other and a Y-direction lower side crossbar 502b for connecting the two X-direction lower side crossbars 502a.

[0046] As shown in the figure, Figure 1As shown, the end of the upper side horizontal rod group 501 and the lower side horizontal rod group 502 of each square side frame 5 arranged on the first building unit 1 is fixedly connected with the outer surface of two first vertical columns 103a of one of the first vertical column groups 103, the two X-direction upper side horizontal rods 501a of the square side frame 5 above are of the same height with the two first X-direction upper horizontal rods 101a, and the two X-direction lower side horizontal rods 502a of the square side frame 5 below are of the same height with the two first X-direction lower horizontal rods 102a; the end of the upper side horizontal rod group 501 and the lower side horizontal rod group 502 of each square side frame 5 arranged on the second building unit 2 is fixedly connected with the outer surface of two second vertical columns 203a of one of the second vertical column groups 203, the two X-direction upper side horizontal rods 501a of the square side frame 5 above are of the same height with the two second X-direction upper horizontal rods 201a, and the two X-direction lower side horizontal rods 502a of the square side frame 5 below are of the same height with the two second X-direction lower horizontal rods 202a.

[0047] As shown in the drawings, in order to realize the quick fixed connection of the end part when two adjacent first building units 1 or adjacent first building unit 1 and second building unit 2 or two adjacent second building units 2 are transversely spliced, the first end part connector 3 comprises an end part vertical plate 301, a first horizontal plate 302 and a first vertical plate 303 arranged on one surface of the end part vertical plate 301 and perpendicular to the surface; the first horizontal plate and the first vertical plate are perpendicular to each other; at least two first plug-in holes 302a are arranged in the first horizontal plate 302, and at least one first plug-in hole is arranged on each side of the first vertical plate 303. Figures 1-6

[0048] As shown in the drawings, in order to realize the quick fixed connection of the end part when two adjacent first building units 1 or adjacent first building unit 1 and second building unit 2 or two adjacent second building units 2 are transversely spliced, the first end part connector 3 comprises an end part vertical plate 301, a first horizontal plate 302 and a first vertical plate 303 arranged on one surface of the end part vertical plate 301 and perpendicular to the surface; the first horizontal plate and the first vertical plate are perpendicular to each other; at least two first plug-in holes 302a are arranged in the first horizontal plate 302, and at least one first plug-in hole is arranged on each side of the first vertical plate 303. Figures 4-6 Figures 8-10 As shown in the drawings, in order to realize the quick fixed connection of the end part when two adjacent first building units 1 or adjacent first building unit 1 and second building unit 2 or two adjacent second building units 2 are transversely spliced, the first end part connector 3 comprises an end part vertical plate 301, a first horizontal plate 302 and a first vertical plate 303 arranged on one surface of the end part vertical plate 301 and perpendicular to the surface; the first horizontal plate and the first vertical plate are perpendicular to each other; at least two first plug-in holes 302a are arranged in the first horizontal plate 302, and at least one first plug-in hole is arranged on each side of the first vertical plate 303.

[0049] As shown in the drawings, in order to realize the quick fixed connection of the end part when two adjacent first building units 1 or adjacent first building unit 1 and second building unit 2 or two adjacent second building units 2 are transversely spliced, the first end part connector 3 comprises an end part vertical plate 301, a first horizontal plate 302 and a first vertical plate 303 arranged on one surface of the end part vertical plate 301 and perpendicular to the surface; the first horizontal plate and the first vertical plate are perpendicular to each other; at least two first plug-in holes 302a are arranged in the first horizontal plate 302, and at least one first plug-in hole is arranged on each side of the first vertical plate 303.

[0050] As shown in the drawings, in order to realize the quick fixed connection of the end part when two adjacent first building units 1 or adjacent first building unit 1 and second building unit 2 or two adjacent second building units 2 are transversely spliced, the first end part connector 3 comprises an end part vertical plate 301, a first horizontal plate 302 and a first vertical plate 303 arranged on one surface of the end part vertical plate 301 and perpendicular to the surface; the first horizontal plate and the first vertical plate are perpendicular to each other; at least two first plug-in holes 302a are arranged in the first horizontal plate 302, and at least one first plug-in hole is arranged on each side of the first vertical plate 303. Figures 1-6 ​​As shown, the end vertical plate 301 is a square plate, and when assembled, the insertion columns 6 at the upper ends of the first vertical columns 103a and the second vertical columns 203a corresponding to the adjacent two first building units 1 or the second building units 2 are respectively inserted into the two first insertion holes 302a, and the end vertical plate 301 is fixed on the outer walls of the two adjacent first vertical columns 103a or the two adjacent second vertical columns 203a or the adjacent first vertical column 103a and the second vertical column 203a by screws, and the first vertical plate 303 is clamped between the two adjacent first vertical columns 103a or the two adjacent second vertical columns 203a or the adjacent first vertical column 103a and the second vertical column 203a; the vertical section of the first horizontal plate 302 and the first vertical plate 303 after being connected is in the shape of a cross.

[0051] As shown in Figure 1 , Figures 7-10 , the end vertical plate 301 is an L-shaped plate, and this structure is mainly suitable for the case that one end of the first building unit 1 and the second building unit 2 is also provided with two square side frames 5 arranged in an up-down manner, and when assembled, the inner corner of the L-shaped plate is clamped on one of the X-direction upper side horizontal rods 501a, and other assembly modes are the same as the assembly mode of the end connecting piece 3 with the square plate.

[0052] As shown in Figures 11-14 , the intermediate connecting piece 4 includes an intermediate vertical plate 401 and an intermediate horizontal plate 402 which are perpendicularly intersected and fixedly connected; the intermediate horizontal plate is provided with at least two intermediate insertion holes 402a, and the two sides of the intermediate vertical plate are each distributed with at least one intermediate insertion hole.

[0053] The intermediate insertion hole 402a is two or three, and in this embodiment, according to different situations, it includes the case that the intermediate insertion hole 402a is two, at this time, one side of the intermediate vertical plate is distributed with one intermediate insertion hole, as shown in Figures 11-14 , and the case that the intermediate insertion hole 402a is three, as shown in Figures 16-18 , at this time, one side of the intermediate vertical plate is distributed with one intermediate insertion hole 402a, and the other side is distributed with two intermediate insertion holes 402a.

[0054] As shown in Figure 1 , Figures 11-14 , when the two second building units 2 are transversely spliced, the insertion columns 6 at the upper ends of the intermediate vertical columns 204a of the two second building units 2 are respectively inserted into the two intermediate insertion holes 402a, and the intermediate vertical plate 401 is located between the two intermediate vertical columns 204a.

[0055] As shown in Figure 1 , Figures 15-18As shown, while a first building unit 1 and a second building unit 2 are spliced ​​along their length direction (X direction), another second building unit 2 is spliced ​​with the aforementioned first building unit 1 and a second building unit 2 to form a structure along the width direction (Y direction) of the first building unit 1 or the second building unit 2. At this time, the two insertion posts 6 at the upper ends of the first column 103a and the second column 203a corresponding to the first building unit 1 and the second building unit 2, respectively, are inserted into the two intermediate insertion holes 402a located on the same side of the intermediate plate. Meanwhile, the insertion post 6 at the upper end of the intermediate column 204a of the other second building unit 2 is inserted into the intermediate insertion hole 402a located on the other side of the intermediate plate, thereby realizing the splicing of two second building units 2 with one first building unit 1.

[0056] like Figure 11 As shown, the plug-in post 6 includes a block-shaped base 601 and a quadrangular frustum 602 disposed on the base; the base and the quadrangular frustum are integrally formed.

[0057] like Figure 21 As shown, the longitudinal connector 7 has a connector hole (not shown), and the connector hole includes a receiving portion for accommodating the quadrangular frustum 602.

[0058] Both the plug-in post 6 and the longitudinal plug-in connector 7 are manufactured using a CNC machining center.

[0059] like Figures 19-21 As shown, after planar splicing using the above splicing method, a horizontal expansion can be formed. Then, according to actual needs, two or more spliced ​​building structures can be spliced ​​together in the vertical direction, so that the entire building structure can reach the required height.

[0060] In the above description, it should be noted that the terms "installation", "connection", "connection" and other related terms should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components; "set at" should be understood as "installed at" or "set at", including installation methods such as fixed installation and movable installation.

[0061] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Any equivalent structures made based on the description and drawings of this utility model, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A self-aligning, assembled, composite building structure comprising: The first building unit (1) is a square frame enclosed by a first upper square frame (101), a first lower square frame (102) and two groups of first vertical columns (103) parallel to each other; the first upper square frame comprises two first X-direction upper horizontal rods (101a) parallel to each other, the first lower square frame (102) comprises two first X-direction lower horizontal rods (102a) parallel to each other, and each first vertical column group comprises two first vertical columns (103a) parallel to each other; characterized in that it further comprises: a second building unit (2) comprising a second upper square frame (201), a second lower square frame (202), two groups of second vertical column groups (203) parallel to each other and vertically connected to two ends of the second upper square frame and the second lower square frame respectively, and at least one group of intermediate vertical column groups (204) vertically connected to the second upper square frame and the second lower square frame at two ends and located between the two groups of second vertical column groups (203); an end connecting piece (3) and an intermediate connecting piece (4) for transversely splicing two adjacent first building units (1) or a first building unit and a second building unit (2).

2. A self-aligning, assembled, composite building structure as claimed in claim 1, wherein, The second upper square frame (201) comprises two second X-direction upper horizontal rods (201a) parallel to each other, the second lower square frame (202) comprises two second X-direction lower horizontal rods (202a) parallel to each other, each second vertical column group (203) comprises two second vertical columns (203a) parallel to each other, and each second vertical column is arranged between the second X-direction upper horizontal rod (201a) and the second X-direction lower horizontal rod (202a) on the same side and is vertically connected to the ends of the two rods; the intermediate vertical column group (204) comprises two intermediate vertical columns (204a) parallel to each other, and each intermediate vertical column is arranged between the second X-direction upper horizontal rod (201a) and the second X-direction lower horizontal rod (202a) on the same side and is vertically connected to the two rods; the second building unit (2) is in the form of a square frame.

3. A self-aligning, assembled composite building structure as claimed in claim 2, wherein, One end of the first building unit (1) and the second building unit (2) is further provided with two square side frames (5) arranged in upper and lower positions.

4. A self-aligning, assembled composite building structure as claimed in claim 3, wherein, The square side frame (5) comprises an upper side horizontal rod group (501) and a lower side horizontal rod group (502) arranged in upper and lower positions and parallel to each other, the upper side horizontal rod group (501) comprises two X-direction upper side horizontal rods (501a) parallel to each other, and the lower side horizontal rod group (502) comprises two X-direction lower side horizontal rods (502a) parallel to each other.

5. A self-aligning, assembled composite building structure as claimed in claim 4, wherein, The end of the upper lateral rod group (501) and the lower lateral rod group (502) of each square side frame (5) arranged on the first building unit (1) is fixedly connected with the outer surface of two first vertical columns (103a) of one of the first vertical column groups (103), the two X-direction upper lateral rods (501a) of the square side frame (5) arranged above are the same in height with the two first X-direction upper lateral rods (101a), and the two X-direction lower lateral rods (502a) of the square side frame (5) arranged below are the same in height with the two first X-direction lower lateral rods (102a); the end of the upper lateral rod group (501) and the lower lateral rod group (502) of each square side frame (5) arranged on the second building unit (2) is fixedly connected with the outer surface of two second vertical columns (203a) of one of the second vertical column groups (203), the two X-direction upper lateral rods (501a) of the square side frame (5) arranged above are the same in height with the two second X-direction upper lateral rods (201a), and the two X-direction lower lateral rods (502a) of the square side frame (5) arranged below are the same in height with the two second X-direction lower lateral rods (202a).

6. A self-aligning, modular, assembled building structure as claimed in claim 2, wherein, The end connecting piece (3) comprises an end vertical plate (301), a first horizontal plate (302) and a first vertical plate (303) arranged on one surface of the end vertical plate and perpendicular to the surface; the first horizontal plate and the first vertical plate are perpendicular to each other; at least two first plug-in holes (302a) are arranged in the first horizontal plate (302), and at least one first plug-in hole is arranged on each side of the first vertical plate (303).

7. A self-aligning, assembled composite building structure as claimed in claim 6, wherein, The end vertical plate (301) is a square plate or an L-shaped plate; the first horizontal plate (302) and the first vertical plate (303) are perpendicular to each other, forming four quadrant spaces, and the cross-sectional profile of one of the quadrant spaces is consistent with the inner profile of the L-shaped plate.

8. A self-aligning, modular, assembled building structure as claimed in claim 2, wherein, The middle connecting piece (4) comprises a middle vertical plate (401) and a middle horizontal plate (402) which are perpendicular to each other and fixedly connected; at least two middle plug-in holes (402a) are arranged in the middle horizontal plate (402), and at least one middle plug-in hole is arranged on each side of the middle vertical plate (401).

9. A self-aligning, assembled composite building structure as claimed in claim 8, wherein, The middle plug-in hole (402a) is three, one middle plug-in hole (402a) is arranged on one side of the middle vertical plate (401), and two middle plug-in holes are arranged on the other side.

10. A self-aligning assembled composite building structure according to any one of claims 2 to 9, wherein, The upper end of each first vertical column (103a), second vertical column (203a) and middle vertical column (204a) is provided with a plug-in column (6), and the lower end is provided with a longitudinal plug-in head (7).

11. A self-aligning, assembled composite building structure as claimed in claim 10, wherein, The plug-in column (6) comprises a square base (601) and a four-prism table (602) arranged on the base; the base and the four-prism table are integrally formed.

12. A self-aligning, assembled, composite building structure as claimed in claim 11, wherein, The longitudinal plug-in head (7) is provided with a plug-in hole, and the plug-in hole comprises a containing part for containing the four-prism table (602).

13. A self-aligning, assembled, composite building structure as in claim 12, wherein, The plug-in column (6) and the longitudinal plug-in head (7) are made of a CNC numerical control machining center.

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