Quick connecting device for prefabricated building prefabricated parts

Abstract

The utility model relates to the technical field of building construction, in particular to an assembly type building prefabricated part quick connecting device which comprises a prefabricated part, a plurality of upper connecting blocks, a plurality of lower connecting blocks and a locking block, the prefabricated part comprises an upper component and a lower component, the upper connecting blocks are inserted into the lower surface of the upper component at intervals, and the lower connecting blocks are inserted into the lower surface of the lower component at intervals. The multiple lower connecting blocks are inserted into the upper surface of the lower component at intervals, one upper connecting block corresponds to one lower connecting block, the upper ends of the lower connecting blocks are inserted into the upper connecting blocks, the multiple sets of locking blocks are arranged, one set of locking blocks corresponds to one upper connecting block, and each upper connecting block comprises an upper main plate and an upper side plate which are oppositely arranged. The lower connecting block comprises a lower main plate and a lower side plate which are oppositely arranged, the lower main plate is inserted between the two upper main plates, and the lower side plate is inserted between the two upper side plates. According to the utility model, the upper component and the lower component are connected together through the upper connecting block and the lower connecting block, and the lower connecting block with the inclined surface can be more conveniently connected with the upper connecting block in an inserting manner, so that the mounting efficiency of the prefabricated component is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a quick connection device for assembled building prefabricated components. Background Art

[0002] Prefabricated buildings are concrete structures assembled by prefabricated concrete components through reliable connection methods, including assembled integral concrete structures, fully assembled concrete structures, and prefabricated components including prefabricated exterior wall panels, prefabricated interior wall panels, prefabricated composite floor slabs, prefabricated stairs, and composite beams. Prefabricated components are building components manufactured in factories or production bases, which are transported to the site for use after standardized processing and assembly. Prefabricated building construction refers to assembling these prefabricated components on site to form an integral building. The manufacturing technology of prefabricated components is of great significance to prefabricated building construction. It can improve construction efficiency, reduce labor costs and material waste, and ensure construction quality. Prefabricated assembled building components refer to building components that are prefabricated in factories through standardized production processes, such as walls, floor slabs, stairs, etc.

[0003] In the prior art, when installing prefabricated components, it is necessary to first check and verify the positioning and verticality of the embedded steel bars, and then lift the prefabricated components and slowly drop them. When two prefabricated components are connected, it is necessary to use a mirror to observe whether the embedded steel bars are aligned with the holes. After the holes are correctly aligned, they are slowly dropped into place. There will be deviations when the positioning holes are penetrated by refraction through the mirror, which makes the entire positioning process relatively slow, and the installation efficiency of the prefabricated components is low. Moreover, the two prefabricated components after docking are only connected by the embedded steel bars, and the stability effect is poor. After the docking is completed, more inclined supports and seven-character codes are required to assist in fixing the prefabricated components. The installation and removal of a large number of inclined supports and seven-character codes will consume a lot of manpower and material resources, which is relatively cumbersome. Utility Model Content

[0004] The main purpose of the utility model is to provide a quick connection device for prefabricated components of assembled buildings, which can effectively solve the above-mentioned problems.

[0005] The utility model provides the following technical scheme: a quick connection device for prefabricated components of an assembled building, comprising a prefabricated part, a plurality of upper connecting blocks, a plurality of lower connecting blocks and a locking block, the prefabricated part comprising an upper component and a lower component, a plurality of the upper connecting blocks are inserted at intervals on the lower surface of the upper component, a plurality of the lower connecting blocks are inserted at intervals on the upper surface of the lower component, one upper connecting block corresponds to one lower connecting block, the upper end of the lower connecting block is inserted in the upper connecting block and forms a fixed block, the locking blocks are provided with a total of a plurality of groups, each group comprises two locking blocks which are centrally symmetrical and inserted at both sides of the upper component and clamped to each other, one group of locking blocks corresponds to one fixed block, the upper connecting block comprises two upper main boards and two upper side plates which are arranged oppositely, the lower connecting block comprises two lower main boards and two lower side plates which are arranged oppositely, the two lower main boards are inserted between the two upper main boards, and the two lower side plates are inserted between the two upper side plates.

[0006] Furthermore, the surface of the opposite side of the two upper main boards is a slope, the surface of the opposite side of the two upper side boards is a slope, the surface of the opposite side of the two lower main boards is a slope, and the surface of the opposite side of the two lower side boards is a slope. The cross-section of the upper main board after being plugged in and the cross-section of the upper side board after being plugged in are both rectangular.

[0007] Furthermore, the upper connecting block also includes a bottom plate, the upper main plate and the upper side plate are respectively fixedly arranged at the edge of the bottom plate, the upper side plate is located between the two upper main plates, and the lower connecting block also includes a bottom frame, the lower main plate and the lower side plate are respectively fixedly arranged on the four side walls of the bottom frame, and the lower side plate is located between the two lower main plates.

[0008] Furthermore, a plurality of upper fixing columns are fixedly arranged at intervals in the middle of the bottom plate, a truncated cone is fixedly arranged at the end of the upper fixing column, an upper connecting hole is opened on the surface of the truncated cone, and the upper connecting hole passes through the truncated cone, the upper fixing column and the bottom plate in sequence.

[0009] Furthermore, a receiving groove is provided in the middle of one side surface of the bottom frame close to the lower main board, a plurality of lower fixed columns are fixedly arranged at intervals at the bottom of the receiving groove, a connecting platform is fixedly arranged at the end of the lower fixed column, the connecting platform is funnel-shaped, and a groove for mating with the round table is provided on the surface of the connecting platform.

[0010] Furthermore, a lower connecting hole is provided at the bottom of the groove, and the lower connecting hole passes through the connecting platform, the lower fixing column, and the bottom frame in sequence. A plurality of through grooves are provided on the side wall of the lower fixing column at intervals along the circumferential direction.

[0011] Furthermore, a plurality of upper mounting grooves are spaced apart on the lower surface of the upper component, and a plurality of lower mounting grooves are spaced apart on the upper surface of the lower component, and embedded sleeves are provided in both the upper mounting grooves and the lower mounting grooves, the upper connecting block is inserted in the upper mounting groove and fixedly connected to the embedded sleeve in the upper mounting groove by bolts, and the lower connecting block is inserted in the lower mounting groove and fixedly connected to the embedded sleeve in the lower mounting groove by bolts.

[0012] Furthermore, an upper pre-embedded steel bar is fixedly arranged in the upper installation groove, and the end of the upper pre-embedded steel bar passes through the upper connecting hole and is plugged into the lower connecting hole. A lower pre-embedded steel bar is fixedly arranged in the lower installation groove, and the lower pre-embedded steel bar is plugged into the lower connecting hole.

[0013] Furthermore, an upper through hole is formed through the middle of the upper main board, and a lower through hole is formed through the middle of the lower main board. When the lower main board is plugged into the upper main board, the upper through hole is aligned with the lower through hole. The locking block includes a horizontal plate and a vertical plate. The vertical plate is fixedly arranged in the middle of the surface of one side of the horizontal plate. The vertical plate is made of elastic material. A card joint is fixedly arranged at the end of the vertical plate. A card groove is formed at one end of the card joint close to the horizontal plate. The card joint of the vertical plate passes through the side wall, the upper through hole and the lower through hole of the upper component in sequence and is carded with the card groove on the other vertical plate.

[0014] Furthermore, a plurality of grouting holes are formed through one of the side walls of the upper component, upper grouting holes corresponding to the grouting holes are formed through both sides of the upper main board, and lower grouting holes corresponding to the grouting holes are formed through both sides of the lower main board, and the outside of the upper component is connected with the inside of the upper connecting block through the grouting holes, the upper grouting holes and the lower grouting holes.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In the utility model, installation grooves are reserved in the upper member and the lower member, and the upper member and the lower member are connected together by the upper connecting block and the lower connecting block. The lower connecting block with the inclined surface can be more conveniently plugged into the upper connecting block. At the same time, the embedded steel bars and the funnel-shaped connecting platform also play a positioning role. There is no need for the staff to hold a mirror to observe whether the embedded steel bars are aligned with the positioning holes. It is not easy to produce deviations during the docking process. The entire installation process is fast and convenient, which improves the installation efficiency of prefabricated components.

[0017] 2. In the utility model, a lower main board is inserted between two upper main boards, and a lower side board is inserted between two upper side boards. The lower main board slides into the upper connecting block along the inclined surface of the upper main board, and the lower side board slides into the upper connecting block along the inclined surface of the upper side board. As more and more parts slide in, the connection between the upper connecting block and the lower connecting block becomes tighter and tighter, and the connection between the upper member and the lower member becomes more and more stable. The connection is further reinforced with a locking block, so that the connection between the upper member and the lower member is more stable. Compared with the prior art in which connection is only performed by pre-embedded steel bars, the stabilizing effect is good, a part of the inclined support and the seven-character code are omitted, and manpower and material resources are saved.

[0018] 3. In the utility model, the through groove provided allows the grouting slurry to flow into the lower fixed column, thereby fixing the upper pre-embedded steel bars with the lower pre-embedded steel bars, and also fixing the upper fixed column with the lower fixed column, the locking blocks that are mutually engaged, and the upper connecting block with the lower connecting block, so that the entire structure connection is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the disassembled structure of the utility model from another perspective;

[0022] Figure 3 This is a schematic diagram of the connection structure between the upper component and the upper connecting block of the utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the lower component and the lower connecting block of the utility model;

[0024] Figure 5 This is a schematic diagram of the upper connecting block structure of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the lower connecting block of the utility model;

[0026] Figure 7 This is a schematic diagram of the locking block structure of the utility model.

[0027] 1. Prefabricated part; 11. Upper member; 111. Upper mounting groove; 112. Upper embedded steel bar; 113. Slot; 1131. Socket; 114. Grouting hole; 12. Lower member; 121. Lower mounting groove; 122. Lower embedded steel bar; 13. Embedded sleeve; 2. Upper connecting block; 21. Bottom plate; 22. Upper main plate; 221. Upper through hole; 222. Upper grouting hole; 23. Upper side plate; 24. Upper fixing column; 241. Round table; 242. Upper connecting hole; 3. Lower connecting block; 31. Bottom frame; 32. Lower main board; 321. Lower through hole; 322. Lower grouting hole; 33. Lower side plate; 34. Lower fixing column; 341. Through groove; 342. Connecting table; 343. Lower connecting hole; 4. Locking block; 41. Horizontal plate; 42. Vertical plate; 421. Card joint; 422. Card slot. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Specific implementation examples Figure 1-7 As shown: an assembled building prefabricated component quick connection device, including a prefabricated part 1, multiple upper connecting blocks 2, multiple lower connecting blocks 3 and a locking block 4, the prefabricated part 1 includes an upper member 11 and a lower member 12, multiple upper connecting blocks 2 are inserted at intervals on the lower surface of the upper member 11, and multiple lower connecting blocks 3 are inserted at intervals on the upper surface of the lower member 12, one upper connecting block 2 corresponds to one lower connecting block 3, the upper end of the lower connecting block 3 is inserted in the upper connecting block 2 and forms a fixed block, and the locking block 4 is provided with a total of multiple groups, each group includes two locking blocks 4 that are centrally symmetrical and inserted on both sides of the upper member 11 and clamped to each other, and one group of locking blocks 4 corresponds to one fixed block, the upper connecting block 2 includes two upper main boards 22 and two upper side plates 23 arranged oppositely, the lower connecting block 3 includes two lower main boards 32 and two lower side plates 33 arranged oppositely, the two lower main boards 32 are inserted between the two upper main boards 22, and the two lower side plates 33 are inserted between the two upper side plates 23.

[0030] Furthermore, the surface of one side opposite to the two upper main boards 22 is a slope, the surface of one side opposite to the two upper side boards 23 is a slope, the slopes of the upper main boards 22 and the upper side boards 23 are both inclined toward the outside of the upper connecting block 2, the surface of one side opposite to the two lower main boards 32 is a slope, the surface of one side opposite to the two lower side boards 33 is a slope, the slopes of the lower main boards 32 and the lower side boards 33 are both inclined toward the inside of the lower connecting block 3, the cross-sections of the upper main boards 22 and the lower main boards 32 after being plugged in, and the cross-sections of the upper side boards 23 and the lower side boards 33 after being plugged in are both rectangular, a gap is formed between the upper side boards 23 and the upper main boards 22, and the two ends of the lower main boards 32 are plugged in with the gap.

[0031] Furthermore, the upper connecting block 2 also includes a bottom plate 21, an upper main plate 22 and an upper side plate 23 are respectively fixedly arranged at the edge of one side surface of the bottom plate 21, and the upper side plate 23 is located between the two upper main plates 22. The lower connecting block 3 also includes a bottom frame 31, a lower main plate 32 and a lower side plate 33 are respectively fixedly arranged on four side walls of the bottom frame 31, and the lower side plate 33 is located between the two lower main plates 32. The lower main plate 32 is inserted between the two upper main plates 22, and the lower side plate 33 is inserted between the two upper side plates 23. The lower main plate 32 is inserted between the two upper main plates 22, and the lower main plate 32 is inserted between the two upper side plates 23. The inclined surface of the plate 22 slides into the upper connecting block 2, and the lower side plate 33 slides into the upper connecting block 2 along the inclined surface of the upper side plate 23. As more and more parts slide in, the connection between the upper connecting block 2 and the lower connecting block 3 becomes tighter and tighter, and the connection between the upper member 11 and the lower member 12 becomes more and more stable. The locking block 4 is used to further reinforce the connection, so that the connection between the upper member 11 and the lower member 12 is more stable. Compared with the prior art in which only pre-buried steel bars are used for connection, the stabilizing effect is good, a part of the inclined supports and seven-character codes are omitted, and manpower and material resources are saved.

[0032] Furthermore, a plurality of upper fixing columns 24 are fixedly arranged at intervals in the middle of the bottom plate 21 , a truncated cone 241 is fixedly arranged at the end of the upper fixing column 24 , an upper connecting hole 242 is opened on the surface of the truncated cone 241 , and the upper connecting hole 242 passes through the truncated cone 241 , the upper fixing column 24 and the bottom plate 21 in sequence.

[0033] Furthermore, a receiving groove is provided in the middle of one side surface of the bottom frame 31 close to the lower main board 32, and a plurality of lower fixed columns 34 are fixedly arranged at intervals at the bottom of the receiving groove. A connecting platform 342 is fixedly arranged at the end of the lower fixed column 34. The connecting platform 342 is funnel-shaped. The funnel-shaped structure makes it easier for the embedded steel bars to be positioned and connected thereto. A groove is provided on the surface of the connecting platform 342 for mating with the round table 241.

[0034] Furthermore, a plurality of through grooves 341 are formed on the side wall of the lower fixing column 34 at intervals in the circumferential direction, a lower connecting hole 343 is formed at the bottom of the groove, and the lower connecting hole 343 passes through the connecting platform 342, the lower fixing column 34, and the bottom frame 31 in sequence, and the upper fixing column 24 abuts against the connecting platform 342.

[0035] Furthermore, a plurality of upper mounting grooves 111 are spaced apart on the lower surface of the upper member 11, and a plurality of lower mounting grooves 121 are spaced apart on the upper surface of the lower member 12, and a plurality of embedded sleeves 13 are fixedly provided at the bottom of the upper mounting groove 111 and the bottom of the lower mounting groove 121, the upper connecting block 2 is inserted into the upper mounting groove 111, the threaded holes on the base plate 21 are aligned with the corresponding embedded sleeves 13 and fixedly connected by screws, the lower connecting block 3 is inserted into the lower mounting groove 121, the threaded holes on the bottom frame 31 are aligned with the corresponding embedded sleeves 13 and fixedly connected by screws.

[0036] Furthermore, an upper embedded steel bar 112 is fixedly arranged in the upper installation groove 111, and the end of the upper embedded steel bar 112 passes through the upper connecting hole 242 and is plugged into the lower connecting hole 343. A lower embedded steel bar 122 is fixedly arranged in the lower installation groove 121, and the lower embedded steel bar 122 is plugged into the lower connecting hole 343. The end of the upper embedded steel bar 112 does not contact the end of the lower embedded steel bar 122. When the upper embedded steel bar 112 is fully inserted into the lower connecting hole 343, the interior of the accommodating groove is connected with the lower connecting hole 343 through the through groove 341, and the upper embedded steel bar 1 The sizes of the upper pre-embedded steel bars 112 and the lower pre-embedded steel bars 122 are the same, and the diameter of the upper pre-embedded steel bars 112 is larger than the width of the through groove 341, so as to prevent the upper pre-embedded steel bars 112 from getting stuck in the through groove 341 during the insertion into the lower connecting hole 343. At the same time, the through groove 341 can allow the grouting slurry to flow into the lower fixed column 34, so as to fix the upper pre-embedded steel bars 112 and the lower pre-embedded steel bars 122 together. At the same time, the grouting slurry also fixes the upper fixed column 24 and the lower fixed column 34, the mutually clamped locking blocks 4, and the upper connecting block 2 and the lower connecting block 3, so as to make the whole structure more firmly connected.

[0037] Furthermore, an upper through hole 221 is formed in the middle of the upper main board 22, and a lower through hole 321 is formed in the middle of the lower main board 32. When the lower main board 32 is plugged into the upper main board 22, the upper through hole 221 is aligned with the lower through hole 321. The locking block 4 includes a horizontal plate 41 and a vertical plate 42. The vertical plate 42 is fixedly arranged in the middle of the surface of one side of the horizontal plate 41. The vertical plate 42 is made of elastic material. A card joint 421 is fixedly arranged at the end of the vertical plate 42. The cross section of the card joint 421 is a right-angled trapezoid. The card joint 421 is close to the horizontal plate 41. A card slot 422 is provided at one end, and slots 113 are provided on the two side walls of the upper member 11 at positions corresponding to the middle of the upper mounting slot 111. A plug hole 1131 is provided in the middle of the slot 113, and the horizontal plate 41 is plugged into the slot 113. The card connector 421 of the vertical plate 42 passes through the plug hole 1131, the upper through hole 221 and the lower through hole 321 in sequence and then is carded into the card slot 422 on the other vertical plate 42. The two horizontal plates 41 in a set of locking blocks 4 are fixedly connected to the upper member 11 by bolts, and the bolts penetrate the upper member 11.

[0038] Furthermore, a plurality of grouting holes 114 are provided at positions corresponding to the upper mounting grooves 111 on one of the side walls of the upper component 11, and the grouting holes 114 are located on both sides of the slots 113. Upper grouting holes 222 corresponding to the grouting holes 114 are provided on both sides of the upper main board 22, and lower grouting holes 322 corresponding to the grouting holes 114 are provided on both sides of the lower main board 32. The outside of the upper component 11 is connected to the inside of the upper connecting block 2 through the grouting holes 114, the upper grouting holes 222, and the lower grouting holes 322.

[0039] When a prefabricated component quick connection device for assembled buildings is in use, an upper installation groove 111 and a lower installation groove 121 are reserved at the upper embedded steel bars 112 of the upper component 11 and the lower embedded steel bars 122 of the lower component 12, respectively, and embedded sleeves 13 are installed in the upper installation grooves 111 and the lower installation grooves 121, the threaded holes of the upper connecting block 2 are aligned with the embedded sleeves 13 in the upper installation grooves 111 and fastened together with screws, the threaded holes of the lower connecting block 3 are aligned with the embedded sleeves 13 in the lower installation grooves 121 and fastened together with screws, after all the upper connecting blocks 2 and the lower connecting blocks 3 are installed, the docking work is started, the upper component 11 is lifted and slowly dropped, and when the upper connecting block 2 contacts the lower connecting block 3, the upper embedded steel bars 112 are adjusted along the connecting platform 3 under the fine adjustment of the staff. 42 slides into the lower connecting hole 343, so that the upper connecting block 2 and the lower connecting block 3 are positioned, and then the lower main board 32 slides into the upper connecting block 2 along the inclined surface of the upper main board 22, and the lower side plate 33 slides into the upper connecting block 2 along the inclined surface of the upper side plate 23. As more and more parts slide in, the connection between the upper connecting block 2 and the lower connecting block 3 becomes tighter and tighter. When the upper connecting block 2 and the lower connecting block 3 are completely spliced, the grouting hole 114 is aligned with the corresponding upper grouting hole 222 and the lower grouting hole 322, and the upper through hole 221 is aligned with the lower through hole 321, and the two locking blocks 4 are respectively inserted into the sockets 1131 on both sides of the upper component 11, and the vertical plates 42 of the two locking blocks 4 are mutually clamped in the upper connecting block 2, and the two locking blocks 4 are fixedly connected to the upper component 11 with bolts, and then grouting operations are performed through the grouting holes 114. When the device is in use, installation grooves are reserved in the upper component 11 and the lower component 12, and the upper component 11 and the lower component 12 are connected together through the upper connecting block 2 and the lower connecting block 3. The lower connecting block 3 with an inclined surface can be more conveniently plugged into the upper connecting block 2. At the same time, the embedded steel bars and the funnel-shaped connecting platform 342 also play a positioning role. There is no need for the staff to use a handheld mirror to observe whether the embedded steel bars are aligned with the positioning holes. Deviations are not easy to occur during the docking process. The entire installation process is fast and convenient, which improves the installation efficiency of prefabricated components.

Claims

1. A quick connection device for prefabricated components of an assembled building, characterized in that: The invention comprises a prefabricated part (1), a plurality of upper connecting blocks (2), a plurality of lower connecting blocks (3) and a locking block (4); the prefabricated part (1) comprises an upper member (11) and a lower member (12); a plurality of the upper connecting blocks (2) are inserted at intervals on the lower surface of the upper member (11); a plurality of the lower connecting blocks (3) are inserted at intervals on the upper surface of the lower member (12); one upper connecting block (2) corresponds to one lower connecting block (3); the upper end of the lower connecting block (3) is inserted in the upper connecting block (2) and forms a fixed block; the locking block (4) has a total of A plurality of groups, each group comprising two locking blocks (4) which are centrally symmetrical and inserted on both sides of the upper member (11) and are mutually clamped, one group of locking blocks (4) corresponds to one fixing block, the upper connecting block (2) comprising two upper main boards (22) and two upper side boards (23) which are arranged opposite to each other, the lower connecting block (3) comprising two lower main boards (32) and two lower side boards (33) which are arranged opposite to each other, the two lower main boards (32) being inserted between the two upper main boards (22), and the two lower side boards (33) being inserted between the two upper side boards (23).

2. The quick connection device for prefabricated components of an assembled building according to claim 1, characterized in that: The surfaces of the two upper main boards (22) facing each other are inclined surfaces, the surfaces of the two upper side boards (23) facing each other are inclined surfaces, the surfaces of the two lower main boards (32) facing each other are inclined surfaces, and the surfaces of the two lower side boards (33) facing each other are inclined surfaces. The cross-sections of the upper main boards (22) and the lower main boards (32) after being plugged together and the cross-sections of the upper side boards (23) and the lower side boards (33) after being plugged together are both rectangular.

3. The quick connection device for prefabricated building components according to claim 2, characterized in that: The upper connecting block (2) further comprises a bottom plate (21), the upper main plate (22) and the upper side plate (23) are respectively fixedly arranged at the edge of the bottom plate (21), and the upper side plate (23) is located between the two upper main plates (22). The lower connecting block (3) further comprises a bottom frame (31), the lower main plate (32) and the lower side plate (33) are respectively fixedly arranged on the four side walls of the bottom frame (31), and the lower side plate (33) is located between the two lower main plates (32).

4. The quick connection device for prefabricated components of an assembled building according to claim 3, characterized in that: A plurality of upper fixing columns (24) are fixedly arranged at intervals in the middle of the bottom plate (21); a truncated platform (241) is fixedly arranged at the end of the upper fixing column (24); an upper connecting hole (242) is provided on the surface of the truncated platform (241); and the upper connecting hole (242) passes through the truncated platform (241), the upper fixing column (24) and the bottom plate (21) in sequence.

5. The quick connection device for prefabricated components of an assembled building according to claim 4, characterized in that: A receiving groove is provided in the middle of a side surface of the bottom frame (31) close to the lower main board (32); a plurality of lower fixing columns (34) are fixedly arranged at intervals at the bottom of the receiving groove; a connecting platform (342) is fixedly arranged at the end of the lower fixing column (34); the connecting platform (342) is funnel-shaped; and a groove for mating with the round platform (241) is provided on the surface of the connecting platform (342).

6. The quick connection device for prefabricated components of an assembled building according to claim 5, characterized in that: A lower connecting hole (343) is provided at the bottom of the groove, and the lower connecting hole (343) sequentially penetrates the connecting platform (342), the lower fixing column (34), and the bottom frame (31), and a plurality of through grooves (341) are provided on the side wall of the lower fixing column (34) at intervals along the circumferential direction.

7. The quick connection device for prefabricated components of an assembled building according to claim 5, characterized in that: A plurality of upper mounting grooves (111) are provided at intervals on the lower surface of the upper member (11), and a plurality of lower mounting grooves (121) are provided at intervals on the upper surface of the lower member (12); embedded sleeves (13) are provided in both the upper mounting grooves (111) and the lower mounting grooves (121); the upper connecting block (2) is inserted into the upper mounting groove (111) and fixedly connected to the embedded sleeves (13) in the upper mounting groove (111) by bolts; and the lower connecting block (3) is inserted into the lower mounting groove (121) and fixedly connected to the embedded sleeves (13) in the lower mounting groove (121) by bolts.

8. The quick connection device for prefabricated components of an assembled building according to claim 7, characterized in that: An upper embedded steel bar (112) is fixedly arranged in the upper installation groove (111), and an end of the upper embedded steel bar (112) passes through the upper connection hole (242) and is plugged into the lower connection hole (343). A lower embedded steel bar (122) is fixedly arranged in the lower installation groove (121), and the lower embedded steel bar (122) is plugged into the lower connection hole (343).

9. The quick connection device for prefabricated components of an assembled building according to claim 1, characterized in that: An upper through hole (221) is formed in the middle of the upper main board (22), and a lower through hole (321) is formed in the middle of the lower main board (32). When the lower main board (32) and the upper main board (22) are plugged into each other, the upper through hole (221) and the lower through hole (321) are aligned. The locking block (4) comprises a horizontal plate (41) and a vertical plate (42). The vertical plate (42) is fixedly arranged in the middle of a surface of one side of the horizontal plate (41). The vertical plate (42) is made of elastic material. A clamping joint (421) is fixedly arranged at the end of the vertical plate (42). A clamping groove (422) is formed at one end of the clamping joint (421) close to the horizontal plate (41). The clamping joint (421) of the vertical plate (42) passes through the side wall of the upper component (11), the upper through hole (221) and the lower through hole (321) in sequence and is clamped with the clamping groove (422) on the other vertical plate (42).

10. The quick connection device for prefabricated components of an assembled building according to claim 9, characterized in that: A plurality of grouting holes (114) are provided through one of the side walls of the upper component (11), upper grouting holes (222) corresponding to the grouting holes (114) are provided through both sides of the upper main board (22), and lower grouting holes (322) corresponding to the grouting holes (114) are provided through both sides of the lower main board (32), and the exterior of the upper component (11) is connected to the interior of the upper connection block (2) through the grouting holes (114), the upper grouting holes (222), and the lower grouting holes (322).

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