Prefabricated cast-in-place cavity wall and construction method

Abstract

The present application relates to the technical field of building construction, in particular to a prefabricated cast-in-place cavity wall and a construction method. A prefabricated cast-in-place cavity wall comprises: a wall body; a plurality of panel connecting structures, wherein the plurality of panel connecting structures are arranged at least at corners of the wall body, and each panel connecting structure has an accommodating space suitable for inserting a corner of a functional panel therein; the functional panel, wherein a corner of the functional panel is inserted into the accommodating space of each panel connecting structure so as to be fixed. The present application provides a prefabricated cast-in-place cavity wall and a construction method, which facilitates the installation of functional panels, has a high construction efficiency, and reduces the risk of water leakage.

Description

Prefabricated cavity cast-in-place wall and construction method

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on January 8, 2024, with application number 202410026940.1 and invention name “A Prefabricated Cavity Cast-in-Place Wall and Construction Method”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of building construction, and in particular to a prefabricated cavity cast-in-situ wall and a construction method. Background Art

[0004] Currently, construction in my country generally uses cast-in-place technology, which requires manual work such as formwork support and removal. After the main structure is cast and formed, manual work such as plastering is also required, resulting in high production costs. To address this need, prefabricated buildings have emerged, offering fast construction, low noise, and minimal environmental pollution. To meet these demands, functional panels, such as photovoltaic panels, stone panels, or glass curtain walls, need to be added to the exterior surfaces of prefabricated walls. Currently, the installation of photovoltaic panels on building walls or roofs in my country generally uses the BAPV method. This involves the photovoltaic system being directly applied to the building surface, without interfering with the building's functionality and without disrupting or diminishing the existing building's functions. This is also known as "installed" solar photovoltaic architecture. BAPV has several disadvantages regarding the system's architectural appearance, design lifespan, roof stress resistance, waterproofing reliability, construction difficulty and speed, and roof operation and maintenance. Building Appearance: Traditional post-installed photovoltaic power generation projects, where the brackets and photovoltaic panels are later installed on colored extruded metal panels, result in a cluttered roof and poor overall integrity. Design Lifespan: BAPV photovoltaic power generation modules are completely exposed to the elements and are subject to constant weathering, with a typical lifespan of 20 years. Roof stress: The corrugated metal sheets and rear photovoltaic panels in the BAPV system are subjected to complex stresses, with both positive and negative wind pressures between them. Long-term action will produce fatigue effects, affecting structural safety. Waterproof reliability: BAPV requires the installation of corrugated metal sheets on the roof first, and people will go up to install photovoltaic modules and other equipment a second time later. The high load during construction will cause the metal sheets to deform, creating a risk of water leakage. Construction difficulty and speed: The BAPV system needs to be constructed in two phases, which takes a long time. At the same time, the vertical lock-edge aluminum-magnesium-manganese roof panels are difficult to construct. Roof operation and maintenance: The secondary construction of the BAPV system causes roof deformation, poses a risk of water leakage, and is difficult to repair. Summary of the Invention

[0005] Therefore, the technical problem to be solved by this application is to overcome the defects of the existing technology that prefabricated walls are not convenient for installing functional panels, have low construction efficiency, and have the risk of water leakage, thereby providing a prefabricated cavity cast-in-place wall and construction method that is easy to install functional panels, has high construction efficiency, and reduces the risk of water leakage.

[0006] In order to solve the above technical problems, the present application provides a prefabricated cavity cast-in-place wall, comprising:

[0007] Wall body;

[0008] A plurality of plate connection structures are provided at least at the corners of the wall body, and the plate connection structures have accommodating spaces suitable for inserting the corners of the functional panels;

[0009] The functional board has its corners inserted into the accommodation space of the board body connection structure and fixed.

[0010] Optionally, at least three of the plate connecting structures are spaced apart on each side of the wall body, and at least four functional panels are provided, and the corners of at least four functional panels close to each other are inserted into four accommodating spaces of the same plate connecting structure.

[0011] Optionally, the functional panel is a photovoltaic panel, a stone panel, a metal panel or a glass curtain wall.

[0012] Optionally, the wall body includes:

[0013] A first wall panel, a second wall panel, and a third wall panel are sequentially arranged in parallel and spaced apart, a first cavity is formed between the first wall panel and the second wall panel, an insulation board is provided in the first cavity, a second cavity is formed between the second wall panel and the third wall panel, a steel bar assembly and a first anchor assembly are provided in the second cavity, and the second cavity is suitable for pouring concrete, and the first anchor assembly is suitable for connecting the second wall panel and the third wall panel;

[0014] It also includes a second anchor assembly, one end of which is fixed to the first wall panel, and the other end of which passes through the insulation board and the second wall panel in sequence and then extends into the second cavity.

[0015] Optionally, the plate connection structure includes:

[0016] A first connecting assembly, adapted to be fixedly connected to the first wall panel;

[0017] an adjusting assembly, comprising a first adjusting member adapted to be connected to the first connecting assembly and a second adjusting member connected to the first adjusting member, wherein the first adjusting member and the second adjusting member are adapted to be moved and fixed in different directions relative to the first connecting assembly;

[0018] The second connecting assembly is suitable for connecting with the second adjusting member and plugging and cooperating with the second adjusting member to form an accommodating space for accommodating and fixing the functional board.

[0019] Optionally, the first connecting assembly includes at least one mounting plate having a groove and at least two first fasteners arranged in the groove, the mounting plate is embedded in and fixed to the first wall panel, and the groove extends along the first direction; the first adjusting member is provided with a first through hole allowing the first fastener to pass through, and the first fastener is suitable for moving along the first direction under the action of external force and fastening after reaching a predetermined position.

[0020] Optionally, the first adjusting member includes a pair of L-shaped folding plates arranged opposite to each other, the L-shaped folding plates including a horizontal plate arranged parallel to the mounting plate and a vertical plate arranged perpendicular to the mounting plate, the first through hole is arranged on the horizontal plate, and a second through hole is provided on the vertical plate, the second through hole has an adjustment margin along the second direction, a space is provided between the two vertical plates to allow the second adjusting member to be inserted, a third through hole is provided on the second adjusting member, the third through hole has an adjustment margin along the third direction, the second fastener is suitable for passing through the second through hole and the third through hole, and moving along the second direction and the third direction under the action of external force, and fastening after reaching a predetermined position, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0021] Optionally, the second adjusting member extends out of the space setting away from one end of the first connecting component to be connected to the second connecting component, and the second connecting component includes a first connecting plate, a second connecting plate and a strip block arranged between the first connecting plate and the second connecting plate, the first connecting plate is provided with a first through-slot allowing the extended end of the second adjusting member to pass through and a second through-slot allowing the strip block to be partially inserted, the first through-slot and the second through-slot are arranged perpendicular to each other, the third fastener passes through the fourth through-hole on the second connecting plate and is fastened to the strip block, and the fourth fastener passes through the fifth through-hole and the first through-slot on the second connecting plate and is fastened to the second adjusting member.

[0022] Optionally, the middle portion of the strip block is further provided with two spaced apart fastening ends extending toward the first connecting component. Correspondingly, the first through groove is provided with an extension groove allowing the two fastening ends to pass through, and the extending end of the second adjusting member is provided with an open groove that can be plugged into the part between the two fastening ends of the strip block, so that the extending end of the second adjusting member intersects with the strip block and forms the accommodating space with the first connecting plate and the second connecting plate. After passing through the extension groove, the two fastening ends are clamped on opposite sides of the second adjusting member and fixed by a fifth fastener.

[0023] A construction method for the prefabricated cavity cast-in-situ wall is also provided, wherein the wall body comprises:

[0024] A first wall panel, a second wall panel, and a third wall panel are sequentially arranged in parallel and spaced apart, a first cavity is formed between the first wall panel and the second wall panel, an insulation board is provided in the first cavity, a second cavity is formed between the second wall panel and the third wall panel, a steel bar assembly and a first anchor assembly are provided in the second cavity, and the second cavity is suitable for pouring concrete, and the first anchor assembly is suitable for connecting the second wall panel and the third wall panel;

[0025] The following steps are also included:

[0026] The plurality of panel connection structures are respectively fixed to the corners of the area formed by the mold of the first wall panel, and the concrete of the first wall panel is poured. Before the concrete of the first wall panel solidifies, the insulation board is placed on the concrete surface of the first wall panel, with the panel connection structure passing through the insulation board;

[0027] pouring concrete for the second wall panel on the insulation board, and before the concrete of the second wall panel solidifies, overlapping and buckling the assembled mold of the third wall panel, the steel bar assembly, and the first anchor assembly on the concrete of the second wall panel, and inserting the first anchor assembly into the concrete of the second wall panel;

[0028] Pour the concrete of the third wall panel and carry out curing after forming;

[0029] Insert the corners of the functional board into the accommodation space formed by another part of the board body connection structure and fix it.

[0030] The technical solution of this application has the following advantages:

[0031] 1. The prefabricated cavity cast-in-place wall provided in the present application, when it is necessary to install the functional panel and the wall, it is only necessary to insert the corners of the functional panel into the accommodating space of the panel connection structure and fix it. There is no need to set up additional corrugated metal plates, the installation is more convenient, no secondary construction is required, the construction efficiency is high, and the safety hazards and water leakage hazards are reduced; and there is no need to damage the wall body and the functional panel, thereby ensuring the reliability of the installation.

[0032] 2. The prefabricated cavity cast-in-place wall provided in the present application has at least three plate connection structures spaced apart on each side of the wall body, which can facilitate the simultaneous installation and fixation of multiple functional panels. When a functional panel is damaged and needs to be replaced, disassembly and assembly is more convenient, while further reducing costs.

[0033] 3. For the prefabricated cavity cast-in-place wall provided in the present application, when it is necessary to connect the functional panel to the first wall panel, it is only necessary to first adjust the positions of the first adjusting member and the second adjusting member so that the accommodation spaces in the same row or column are aligned, and then insert the corners of the functional panel into the accommodation space between the second connecting component and the second adjusting member. This not only does not require the functional panel and the first wall panel to be destroyed, but also ensures the reliability of the connection.

[0034] 4. The prefabricated cavity cast-in-place wall provided in the present application realizes the adjustment of the plate connection structure in the first direction, the second direction and the third direction by moving the first fastener and the second fastener in the first trough, the second through hole and the third through hole. The structure is simple and the adjustment is convenient.

[0035] 5. In the prefabricated cavity cast-in-place wall provided in the present application, the extended end of the second adjusting member extends between the first connecting plate and the second connecting plate, and intersects with the strip block to form an accommodating space for the functional plate with the first connecting plate and the second connecting plate. Not only does it not need to destroy the functional plate, but also due to the squeezing effect of the first connecting plate and the second connecting plate, a stable connection can be guaranteed.

[0036] 6. The construction method of the prefabricated cavity cast-in-place wall provided in the present application integrates the insulation board into the wall through factory prefabrication, which effectively improves the thermal insulation performance of the wall. The prefabricated wall is a hollow structure, leaving the main structure part to be cast on site, which can reduce the weight of the prefabricated components and facilitate lifting and transportation. The insulation layer is tied to the main structure through a second tie assembly, which can effectively prevent the occurrence of safety accidents such as peeling of the insulation layer. Integrating the insulation board, the board connection structure and the prefabricated wall in the factory eliminates a large amount of manual work on the construction site and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0038] FIG1 is a schematic diagram of a prefabricated cavity cast-in-place wall provided by the present application;

[0039] FIG2 is a side view of the prefabricated cavity cast-in-place wall provided by the present application;

[0040] FIG3 is a partial schematic diagram of FIG1 ;

[0041] FIG4 is a schematic diagram of a plate connection structure;

[0042] FIG5 is an exploded view of FIG4 ;

[0043] Figures 6 to 12 are construction steps of prefabricated cavity cast-in-place walls.

[0044] Description of reference numerals: 1. first wall panel; 2. second wall panel; 3. third wall panel; 4. insulation board; 5. second cavity; 6. Rebar assembly; 7. First anchor assembly; 8. Functional board; 9. Trough body; 10. Mounting plate; 11. First fastener; 12. Second anchor assembly; 13. First adjustment member; 14. Second adjustment member; 15. L-shaped folded plate; 16. Horizontal plate; 17. Vertical plate; 18. First through hole; 19. Second through hole; 20. Second fastener; 21. Third through hole; 22. Mounting hole; 23. First connecting plate; 24. Second connecting plate; 25. Strip block; 26. First through slot; 27. Second through slot; 28. Fifth through hole; 29. ​​Fourth through hole; 30. Fastening end; 31. Sixth through hole; 32. Extension slot; 33. Open slot; 34. Open hole; 35. Fifth fastener; 36. Third fastener; 37. Fourth fastener; 38. First mold platform; 39. Second mold platform; 40. Connector. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0046] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0047] As shown in Figures 1 to 3, a specific embodiment of the prefabricated cavity cast-in-place wall structure of this embodiment comprises a wall body consisting of a first wall panel 1, a second wall panel 2, and a third wall panel 3, arranged in parallel and spaced relation. A first cavity is formed between the first wall panel 1 and the second wall panel 2, within which an insulation panel 4 is disposed. A second cavity 5 is formed between the second wall panel 2 and the third wall panel 3, within which a reinforcement assembly 6 and a first anchor assembly 7 are disposed, suitable for pouring concrete. The first anchor assembly 7 is adapted to connect the second wall panel 2 and the third wall panel 3. Three panel connection structures are spaced apart on each side of the first wall panel 1, each of which has a receiving space for inserting the corners of a functional panel 8. Specifically, a panel connection structure is provided at each of the four corners of the first wall panel 1, and another panel connection structure is provided between adjacent two panel connection structures. The corners of the four functional panels 8 are inserted and secured in the receiving spaces of the corresponding panel connection structures, and the adjacent corners of the four functional panels 8 are inserted into the four receiving spaces of the same centrally located panel connection structure. The two lower plate connection structures are used to support the weight of the functional panel 8, and the two upper plate connection structures are used to hold the functional panel 8 to prevent it from tipping over. The functional panel 8 can be a photovoltaic panel, stone panel, metal panel, or glass curtain wall. This embodiment uses a photovoltaic panel as an example and is not specifically limited here.

[0048] Specifically, the steel bar assembly 6 includes horizontal steel bars, vertical steel bars, and tie bars, which are intertwined to ensure a secure connection. One end of the first tie assembly 7 is anchored in the second wall panel 2, and the other end is anchored in the third wall panel 3.

[0049] A specific embodiment of the plate connection structure shown in FIG4 and FIG5 includes a first connection component suitable for fixed connection with the first wall panel 1, an adjustment component and a second connection component suitable for connection with the adjustment component.

[0050] The first connecting assembly includes at least one mounting plate 10 having a slot 9 and at least two first fasteners 11 disposed within the slot 9. The mounting plate 10 is embedded and fixed within the first wall panel 1 and flush with the outer surface of the first wall panel 1. The slot 9 extends along a first direction. Of course, the mounting plate 10 can also be fixed to the outer surface of the first wall panel 1 by bolts, which is not a specific limitation here. Optionally, this embodiment includes a pair of parallel and spaced mounting plates 10. The mounting plates 10 can be steel plates integrally bent into a C-shape, with the slot 9 formed between the opening of the C-shape and the sidewalls. The first direction is the X direction shown in Figure 5. The first fastener 11 includes a first bolt, a nut, and a stopper plate that fits over the first bolt. During installation, the end of the first bolt with the stopper plate is inserted into the slot 9. After adjusting to the appropriate position, the nut is tightened. Optionally, the nut is a hexagonal nut and the stopper plate is a square plate with a side length greater than the slot width of the slot to prevent it from sliding out in a direction perpendicular to the first wall panel 1.

[0051] Furthermore, to ensure reliable connection between the first wall panel 1, the insulation panel 4, and the second wall panel 2, a second anchor assembly 12 is included. One end of the second anchor assembly 12 is fixed to the first wall panel 1, and the other end of the second anchor assembly 12 sequentially passes through the insulation panel 4 and the second wall panel 2 before extending into the second cavity 5. The material of the second anchor assembly 12 includes, but is not limited to, metal or a synthetic composite material.

[0052] The adjustment assembly includes a first adjustment member 13 suitable for connecting to the first connecting assembly and a second adjustment member 14 connected to the first adjustment member 13. The first adjustment member 13 and the second adjustment member 14 are suitable for moving and fixing in different directions relative to the first connecting assembly. Specifically, the first adjustment member 13 includes a pair of L-shaped folding plates 15 arranged opposite to each other. The L-shaped folding plates 15 include a horizontal plate 16 arranged parallel to the mounting plate 10 and a vertical plate 17 arranged perpendicular to the mounting plate 10, that is, the horizontal plate 16 and the vertical plate 17 are processed and formed perpendicularly to each other. A first through hole 18 is provided on the horizontal plate 16 to allow the first fastener 11 to pass through, and the first through hole 18 is distributed in two pieces up and down to correspond to the grooves 9 on the two mounting plates 10 respectively. After the end of the first bolt passes through the first through hole 18, it moves along the first direction under the action of external force and is fastened by a nut after reaching the predetermined position. The vertical plate 17 is provided with two second through holes 19, one above the other. The second through holes 19 have an adjustment margin along the second direction, i.e., the second through holes 19 are oblong and have a length greater than the diameter of the second fastener 20. The second fastener 20 is a second bolt with a retaining portion, the retaining portion being a rectangular parallelepiped with a width greater than the diameter of the main body. A space is provided between the two vertical plates 17 to allow the second adjusting member 14 to be inserted. The second adjusting member 14 is a rectangular steel plate with a third through hole 21 therein. The third through hole 21 has an adjustment margin along the third direction, i.e., the third through hole 21 is oblong and has a length greater than the diameter of the second fastener 20, and is arranged corresponding to the second through hole 19. The second fastener 20 is adapted to sequentially penetrate the second through hole 19 and the third through hole 21 and move in the second and third directions under the action of an external force, and be tightened after reaching a predetermined position. The first, second, and third directions are mutually perpendicular, the second direction is the Y direction shown in FIG5 , and the third direction is the Z direction shown in FIG5 .

[0053] The surfaces of the vertical plate 17 that contact the second adjusting member 14 and the large end of the second fastener 20, as well as the surfaces of the horizontal plate 16 that contact the large end of the first fastener 11, are all provided with a concave-convex layer. Specifically, the concave-convex layer can be teeth or stripes extending along the Z direction or the X direction to increase the fastening force of the connection by increasing friction. At the same time, the end faces of the small ends of the first fastener 11 and the second fastener 20 are provided with grooves. The grooves serve as markings when assembling the first fastener 11 and the horizontal plate 16, and the second fastener 20 and the vertical plate 17, to ensure that the concave-convex layers engage with each other after assembly.

[0054] The second adjusting member 14 extends out of the space at one end away from the first connecting component to be connected to the second connecting component, and a plurality of mounting holes 22 are formed on the end surface of the extending portion of the second adjusting member 14 facing the second connecting component.

[0055] The second connecting assembly is plugged into and mated with the second adjusting member 14 to form a space for accommodating and securing the functional board 8. Specifically, the second connecting assembly includes a first connecting plate 23 and a second connecting plate 24 spaced apart from each other, and a strip block 25 disposed between the first connecting plate 23 and the second connecting plate 24. The first connecting plate 23 and the second connecting plate 24 are both circular plates. The first connecting plate 23 is provided with a first through-slot 26 that allows the extended end of the second adjusting member 14 to pass through, and a second through-slot 27 that allows the strip block 25 to be partially inserted. The first through-slot 26 and the second through-slot 27 are arranged perpendicular to each other, i.e., the first through-slot 26 extends in the Y direction, and the second through-slot 27 extends in the X direction. A plurality of fifth through-holes 28 and fourth through-holes 29 are provided on the second connecting plate 24 at positions corresponding to the first through-slot 26 and the second through-slot 27, respectively. The middle part of the strip block 25 is further provided with two spaced fastening ends 30 extending toward the first connecting component. Specifically, the fastening ends 30 are two protrusions, and sixth through holes 31 are provided on both sides of the fastening ends 30; correspondingly, the first through groove 26 is provided with an extension groove 32 allowing the two fastening ends 30 to pass through, that is, the middle part of the first through groove 26 extends away from the center of the circle; the extending end of the second adjusting member 14 is provided with an open groove 33 that can be plugged into the part between the two fastening ends 30 of the strip block 25. Optionally, The extension length of the two protrusions is greater than the depth of the opening slot 33, so that the extended end of the second adjusting member 14, after passing through the first through slot 26, intersects with the strip block 25 and forms an accommodation space with the first connecting plate 23 and the second connecting plate 24. The two fastening ends 30 pass through the extension slot 32 and are clamped on opposite sides of the second adjusting member 14. Openings 34 are provided on the second adjusting member 14 at positions corresponding to the two fastening ends 30. The fifth fastener 35 passes through the sixth through hole 31 and the opening 34 to secure the strip block 25 to the second adjusting member 14. The length of the accommodation space along the Z direction is equal to or slightly less than the width of the functional plate 8 to apply a certain clamping force to ensure reliable installation. The third fastener 36 passes through the fourth through hole 29 on the second connecting plate 24 and is inserted into the hole in the strip block 25 for fastening. The fourth fastener 37 passes through the fifth through hole 28 and the first through slot 26 on the second connecting plate 24 and is inserted into the mounting hole 22 on the corresponding end face of the second adjusting member 14 for fastening. This cross-fixing method ensures that the functional board 8 will not rotate after being placed in the accommodation space, thereby ensuring the reliability of the installation.

[0056] The second connecting plate 24 comprises four interlocking curved plates, with the joints between adjacent curved plates staggered in a stepped arrangement. Specifically, the two straight sides of a curved plate form a protrusion near and away from the center, respectively, thereby creating a staggered arrangement. Each protrusion is provided with a fourth through-hole 29 or a fifth through-hole 28, so that two adjacent fourth through-holes 29 or two adjacent fifth through-holes 28 are formed on the two curved plates, respectively. This ensures the reliability of the spliced ​​second connecting plate and prevents the functional panel 8 from tilting outward. The second connecting plate 24 is composed of four curved plates, making it easy to install and maintain. The staggered joints between adjacent curved plates facilitate the installation of the third and fourth fasteners 36 and 37 with the bar block 25 and the second adjusting member 14, further ensuring connection reliability.

[0057] In order to further securely connect the plate connection structure to the first wall panel 1, the first connection assembly further includes a connector 40 connected to the mounting plate 10, the connector 40 extending in a direction away from the second connection assembly. Specifically, the connector 40 is an anchor bolt, the large end of which is welded to the mounting plate 10 or fastened by a nut, and the small end of which sequentially passes through the first wall panel 1, the insulation board 4, and the second wall panel 2 before extending into the second cavity 5. In order to further increase the connection strength between the connector 40 and the first wall panel 1, a bolt with anchor ends at both ends can also be selected, and the anchor ends can be round, square, etc. The anchor end away from one end of the mounting plate 10 can, on the one hand, prevent the first wall panel 1 from falling off along the axial direction of the bolt, and on the other hand, increase the contact area with the concrete in the second cavity 5 on the other side of the first wall panel 1, thereby improving the reliability of the connection.

[0058] The construction method of the prefabricated cavity cast-in-situ wall shown in Figures 6 to 12 includes the following steps:

[0059] Assemble the mold of the first wall panel 1 on the first mold platform 38, install and fix multiple mounting plates 10 of the panel connection structure at the corners of the area formed by the mold of the first wall panel 1, pour the concrete of the first wall panel 1, install the connecting parts 40 on the insulation board 4, and place the insulation board 4 on the concrete surface of the first wall panel 1 before the concrete of the first wall panel 1 solidifies. The connecting parts 40 of the panel connection structure are set through the insulation board 4, and the connecting parts 40 of the insulation board 4 are anchored in the concrete of the first wall panel 1.

[0060] The concrete of the second wall panel 2 is poured on the insulation board 4. Before the concrete of the second wall panel 2 solidifies, the mold of the third wall panel 3, the steel bar assembly 6 and the first anchor assembly 7 assembled on the second mold platform 39 are lifted as a whole, overlapped and pressed on the concrete of the second wall panel 2, and the first anchor assembly 7 is inserted into the concrete of the second wall panel 2.

[0061] The concrete of the third wall panel 3 is poured and cured after forming. When the concrete reaches the required strength, the tooling is removed and the panel is separated from the formwork.

[0062] Before installing the functional panel, insert one end of the first fastener 11 into the slot 9 of the mounting plate 10 and the other end through the horizontal plate 16 of the first adjustment member 13. Adjust the position of the first fastener 11 in the slot 9 and tighten the first fastener 11. Then insert the second adjustment member 14 into the space between the pair of L-shaped folding plates 15. The second fastener 20 sequentially passes through the first adjustment member 13 and the second adjustment member 14, and adjusts the corresponding positions by moving in the second through hole 19 and the third through hole 21 before tightening. This adjustment method does not require the installation of a leveling keel at the construction site, making adjustment convenient. Then, plug the first connecting plate 23 into the second adjustment member 14. The bar block 25 passes through the second through slot 27 on the first connecting plate 23 and is clamped on both sides of the second adjustment member 14, and is fixed by the fifth fastener 35. Finally, the third fastener 36 and the fourth fastener 37 pass through the fourth through hole 29 and the fifth through hole 28 on the second connecting plate 24 and are fixed to the bar block 25 and the second adjusting member 14 to form four accommodating spaces for accommodating and supporting the functional board 8.

[0063] It should be noted that in actual use, after the wall described in this embodiment is transported to the site and hoisted into place according to the design requirements, concrete is poured into the second cavity to form the wall. Before pouring concrete, the openings of the second cavity at both ends of the wall should be sealed with formwork. After the concrete wall reaches a certain strength, the photovoltaic panels can be installed. First, level the connecting structures of each panel, then remove the outermost curved panels, support the photovoltaic panels on the strip blocks, and place the photovoltaic panels against the first connecting panels. After they are securely placed, install the curved panels and secure them. The curved panels can be installed in a top-to-bottom and left-to-right order.

[0064] The second wall panels and the third wall panels on both sides of the concrete are the formwork for pouring concrete. The poured concrete forms a structural load-bearing wall together with the steel bar assembly integrated in the second cavity. The first wall panel, the second wall panel, and the third wall panel should have a certain flexural strength to resist the lateral pressure generated when pouring concrete in the second cavity. The materials used include but are not limited to cement-based composite materials, metals, and artificial synthetic composite materials. All equivalent implementations or changes that do not deviate from the present application should be included in the scope of this application. The function of the first tie assembly is to connect the wall panels on both sides of the structural functional area together and jointly resist the lateral pressure during the concrete pouring process. The processing materials used should have a certain tensile strength, including but not limited to metals or artificial synthetic composite materials. The specific shapes in this embodiment are only used to explain this application and are not used to limit this application. The function of the second tie assembly is to connect the wall panels on both sides of the insulation functional area together, so that the wall panels with insulation layer protection function will not fall off. In order to ensure that the second tie assembly is reliably connected to the wall structure, one end of the second tie assembly is exposed in the second cavity. Concrete will be poured in the second cavity. After the concrete hardens, the second tie assembly can be reliably fixed in the wall panel and will not fall off easily. Photovoltaic panels integrate architecture, technology and aesthetics. Photovoltaic panels can also be hidden under the components during the design and construction process, which can prevent direct sunlight and rain erosion without affecting the appearance of the entire building, achieving a neat and unified appearance. The specific styles in the figure are only used to explain this application and are not used to limit this application. All equivalent implementations or changes that do not deviate from this embodiment should be included in the scope of this application.

[0065] This application integrates the building photovoltaic panels and insulation functions of the wall into prefabricated components, so that the performance of the wall panels meets the insulation and energy-saving standards, and there is no need for manual insulation work on the wall panels at a later stage. The installation of the photovoltaic panels also does not require the installation of keels for leveling, which is convenient and fast, and eliminates the safety hazards caused by the peeling of the exterior wall insulation; the wall adopts a structure with a cavity, which is lighter in weight than traditional prefabricated concrete exterior wall panels, has lower production costs and higher production efficiency, reduces labor costs, and shortens the construction period; it realizes factory production, which is convenient and fast.

[0066] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A precast cavity cast-in-place wall, characterized in that, Comprising: A wall body; A plurality of plate connection structures, at least disposed at the corners of the wall body, the plate connection structure having a receiving space adapted for the insertion of the corners of the functional plate (8); A functional plate (8), the corners of which are inserted into the receiving space of the plate connection structure for fixation.

2. The precast cavity cast-in-place wall according to claim 1, characterized in that, At least three of the plate connection structures are spaced apart on each side of the wall body, the functional plate (8) has at least four, and the corners of at least four of the functional plates are inserted and connected in the four receiving spaces of the same plate connection structure.

3. The precast cavity cast-in-place wall according to claim 1, characterized in that, The functional plate (8) is a photovoltaic panel, a stone slab, a metal plate or a glass curtain wall.

4. The precast cavity cast-in-place wall according to any one of claims 1-3, characterized in that, The wall body includes: A first wall panel (1), a second wall panel (2) and a third wall panel (3) arranged in parallel and spaced apart in sequence, a first cavity is formed between the first wall panel (1) and the second wall panel (2), a heat preservation board (4) is provided in the first cavity, a second cavity (5) is formed between the second wall panel (2) and the third wall panel (3), a steel bar assembly (6) and a first tie assembly (7) are provided in the second cavity (5), and is adapted for pouring concrete, and the first tie assembly (7) is adapted to connect the second wall panel (2) and the third wall panel (3); It further includes a second tie assembly (12), one end of the second tie assembly (12) is fixed to the first wall panel (1), and the other end of the second tie assembly (12) sequentially penetrates through the heat preservation board (4) and the second wall panel (2) and then extends into the second cavity (5).

5. The precast cavity cast-in-place wall according to claim 4, characterized in that, The plate connection structure includes: A first connection component, adapted to be fixedly connected to the first wall panel (1); An adjusting component, including a first adjusting member (13) adapted to be connected to the first connection component and a second adjusting member (14) connected to the first adjusting member (13), the first adjusting member (13) and the second adjusting member (14) are adapted to move and be fixed relative to the first connection component in different directions; A second connection component, adapted to be connected to the second adjusting member (14), and is in plug-in fit with the second adjusting member (14) to form a receiving space for receiving and fixing the functional plate (8).

6. The precast cavity cast-in-situ wall according to claim 5, characterized in that The first connection component includes at least one mounting plate (10) having a groove body (9) and at least two first fasteners (11) disposed in the groove body (9), the mounting plate (10) is embedded and fixed in the first wall panel (1), and the groove body (9) extends along a first direction; a first through hole (18) allowing the first fastener (11) to penetrate is provided on the first adjusting member (13), and the first fastener (11) is adapted to move along the first direction under an external force and be fastened after reaching a predetermined position.

7. The precast cavity cast-in-place wall according to claim 6, characterized in that, The first adjusting member (13) includes a pair of L-shaped folding plates (15) arranged oppositely. The L-shaped folding plate (15) includes a horizontal plate (16) arranged parallel to the mounting plate (10) and a vertical plate (17) arranged perpendicular to the mounting plate (10). The first through hole (18) is arranged on the horizontal plate (16). A second through hole (19) is arranged on the vertical plate (17). The second through hole (19) has an adjustment margin along the second direction. A space allowing the second adjusting member (14) to be inserted is arranged between the two vertical plates (17). A third through hole (21) is arranged on the second adjusting member (14). The third through hole (21) has an adjustment margin along the third direction. The second fastener (20) is adapted to penetrate through the second through hole (19) and the third through hole (21), and move along the second direction and the third direction under an external force and be fastened after reaching a predetermined position. Among them, the first direction, the second direction and the third direction are perpendicular to each other in pairs.

8. The prefabricated cavity cast-in-place wall according to claim 7, characterized in that, One end of the second adjusting member (14) away from the first connection assembly extends out of the space to be connected with the second connection assembly. The second connection assembly includes a first connecting plate (23), a second connecting plate (24) arranged at intervals, and a strip-shaped block (25) arranged between the first connecting plate (23) and the second connecting plate (24). The first connecting plate (23) is provided with a first through slot (26) allowing the extending end of the second adjusting member (14) to penetrate through and a second through slot (27) allowing a part of the strip-shaped block (25) to be inserted. The first through slot (26) and the second through slot (27) are arranged perpendicular to each other. The third fastener (36) penetrates through a fourth through hole (29) on the second connecting plate (24) to be fastened to the strip-shaped block (25). The fourth fastener (37) penetrates through a fifth through hole (28) and the first through slot (26) on the second connecting plate (24) and then is fastened to the second adjusting member (14).

9. The precast cavity cast-in-place wall according to claim 8, characterized in that, Two spaced fastening ends (30) extending towards the first connection assembly direction are further arranged in the middle of the strip-shaped block (25). Correspondingly, an extension slot (32) allowing the two fastening ends (30) to penetrate through is arranged on the first through slot (26). An opening slot (33) capable of being inserted into a part between the two fastening ends (30) of the strip-shaped block (25) is arranged on the extending end of the second adjusting member (14), so that the extending end of the second adjusting member (14) intersects with the strip-shaped block (25) and forms the accommodating space with the first connecting plate (23) and the second connecting plate (24). After the two fastening ends (30) pass through the extension slot (32), they are clamped on the opposite sides of the second adjusting member (14) and fixed by a fifth fastener (35).

10. A construction method for a precast cavity cast-in-place wall according to any one of claims 1-9, characterized in that, The wall body includes: The first wall panel (1), the second wall panel (2) and the third wall panel (3) are arranged in parallel at intervals in sequence. A first cavity is formed between the first wall panel (1) and the second wall panel (2), and a heat preservation board (4) is arranged in the first cavity. A second cavity (5) is formed between the second wall panel (2) and the third wall panel (3), and a steel bar assembly (6) and a first tying assembly (7) are arranged in the second cavity (5), and are suitable for pouring concrete. The first tying assembly (7) is suitable for connecting the second wall panel (2) and the third wall panel (3); It further includes the following steps: Partially install and fix the plate body connection structures at the corners of the area formed by the mold of the first wall panel (1), pour the concrete of the first wall panel (1), place the heat preservation board (4) on the surface of the concrete of the first wall panel (1) before the concrete of the first wall panel (1) solidifies, and part of the plate body connection structure passes through the heat preservation board (4) and is arranged; Pour the concrete of the second wall panel (2) on the heat preservation board (4), and before the concrete of the second wall panel (2) solidifies, superpose and buckle the mold of the third wall panel (3), the steel bar assembly (6) and the first tying assembly (7) assembled and formed on the concrete of the second wall panel (2), and the first tying assembly (7) is inserted into the concrete of the second wall panel (2); Pour the concrete of the third wall panel (3), and perform curing operation after forming; Insert the corners of the functional board (8) into the accommodation space formed by the other part of the plate body connection structure and fix them.

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