Integrated prefabricated sandwich heat preservation shear wall

Abstract

The utility model discloses an integrated prefabricated sandwich heat preservation shear wall, relates to the field of prefabricated shear walls, aims to solve the problem that the construction quality of FRP connecting piece installation in the prior art is inconvenient to control, and adopts the technical scheme that a connecting piece and a heat preservation plate of a heat preservation layer are integrally manufactured, and a through groove is formed in the connecting piece; an anti-pulling rod is arranged in the penetrating groove in a penetrating mode to improve the anti-pulling performance, and a cross-shaped rod is adopted as the connecting piece to improve the anti-shearing performance. The connecting piece and the heat preservation layer are integrally formed, then the anti-pulling rods are arranged in the inner page layer and the outer page layer, the anti-pulling force of the connecting piece in the inner page layer and the outer page layer can be greatly improved, the connecting rod is the cross-shaped rod, the shearing resistance can be greatly improved, and therefore connection between the connecting piece and the outer page layer and connection between the connecting piece and the inner page layer are more stable; the stable connection of the heat preservation layer, the outer page layer and the inner page layer is further realized; the connecting piece and the heat preservation layer are integrally formed, punching operation can be avoided, and the quality of the shear wall is more controllable.

Description

Technical Field

[0001] This utility model relates to the field of precast shear wall technology, specifically an integrated precast sandwich insulated shear wall. Background Technology

[0002] Precast sandwich insulated shear walls are widely used in the construction industry. Their structure, as shown in Chinese patent CN104110095A (Precast Shear Wall and its Production Method), includes an inner leaf layer, an outer leaf layer, and an insulation layer, with connectors connecting the three layers.

[0003] In the production process of precast sandwich insulated shear walls, extra-long FRP connectors are required. When using these connectors, holes need to be drilled in the insulation layer before the outer layer concrete has solidified. The connectors are then inserted into the concrete of the outer layer, and expanding foam is filled at the joint between the connector and the hole in the insulation layer. This method not only makes the connection of the connectors complicated but also places high demands on the construction operation, especially the size of the hole and the filling of the expanding foam. If the hole is too small, the connector will not be able to pass through. If the hole is too large or the expanding foam is not filled properly, the insulation effect of the insulation layer will be reduced. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an integrated prefabricated sandwich insulated shear wall, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model discloses an integrated precast sandwich insulated shear wall. The technical solution includes an outer leaf layer connected to an insulation layer, which in turn connects to an inner leaf layer. A connector is mounted on the insulation layer, and each connector has through slots at both ends. The outer leaf layer contains a steel mesh, and the inner leaf layer contains a steel skeleton. The connector extends into both the outer and inner leaf layers. The connector also connects to a first pull-out rod and a second pull-out rod. The first pull-out rod is located in the outer leaf layer, and the second pull-out rod is located in the inner leaf layer, both passing through the through slots. Manufacturing the connector integrally with the inner leaf layer eliminates the need for drilling during installation, resulting in a more stable connection between the connector and the inner leaf layer, as well as easier connection and better quality control.

[0006] In a preferred embodiment of this invention, the through-groove includes a first through-groove located within the outer leaf layer; a slot is connected to the reinforcing mesh, the slot corresponding to and matching the size of the connector; and the first pull-out resisting rod passes through the slot and the first through-groove. By having the first pull-out resisting rod pass through the slot and the first through-groove, the pull-out resistance of the connector can be significantly improved.

[0007] As a preferred embodiment of this utility model, the main body of the connector is a cross-shaped component, the slot is a cross-shaped groove, and the first through-groove is formed on the two support plates of the connector; a third through-groove is formed on the slot, the first through-groove and the third through-groove are corresponding in position and matched in size, and the first anti-pull rod passes through the third through-groove and the first through-groove. The connector with the cross-shaped structure has higher strength and stronger shear resistance.

[0008] In a preferred embodiment of this invention, the cross-shaped component has a reinforcing plate, which is perpendicular to the cross-shaped component and located within the insulation layer. The reinforcing plate increases the connection strength between the connector and the insulation layer, preventing the connector from detaching from the insulation layer.

[0009] As a preferred technical solution of this utility model, the insulation layer is a double-layer insulation structure, and the two insulation layers are staggered, which can form a continuous and seamless insulation system.

[0010] As a preferred embodiment of this utility model, the cross-shaped component has a Z-shaped structure, including a first connecting body and a second connecting body. The first and second connecting bodies have communicating grooves, and a tie rod is located within the grooves. The Z-shaped connector is compatible with a double-layered, staggered insulation layer. The first and second connecting bodies are respectively positioned within two different insulation layers and connected by the tie rod to improve pull-out resistance. During the pouring of concrete for the inner leaf layer, the concrete enters the grooves, casting the tie rod, the first connecting body, and the second connecting body into a single unit.

[0011] In a preferred embodiment of this invention, the through-groove includes a second through-groove located within the inner blade layer, and the second pull-out rod passes through the second through-groove. The second pull-out rod enhances the pull-out resistance between the connector and the inner blade layer.

[0012] In a preferred embodiment of this invention, a positioning groove is provided on the side wall of the second through-groove, and the second pull-out rod is located in the positioning groove. The positioning groove facilitates the positioning of the second pull-out rod during installation, thereby facilitating the casting of the inner leaf layer.

[0013] In a preferred embodiment of this invention, the insulation layer and the outer leaf layer are coplanar, and the insulation layer is narrower than the outer leaf layer.

[0014] As a preferred technical solution of this utility model, the connectors in the insulation layer are connected by a keel. The keel can not only further improve the pull-out resistance of the connectors in the insulation layer, but also facilitate the positioning of the connectors during the production process.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: By integrally molding the connector with the insulation layer and setting anti-pull-out rods in the inner and outer leaf layers, this utility model can significantly improve the pull-out resistance of the connector in the inner and outer leaf layers. The use of cross rods for the connector can significantly improve the shear resistance, thereby making the connection between the connector and the outer and inner leaf layers more stable, and thus achieving a stable connection between the insulation layer and the outer and inner leaf layers. Integrating the connector with the insulation layer eliminates the need for drilling, making the quality of the shear wall more controllable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the connector structure according to the first embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the insulation layer structure according to the first embodiment of this utility model. Figure 1 ;

[0019] Figure 4 This is an enlarged structural diagram of section A in the first embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the insulation layer structure according to the first embodiment of this utility model. Figure 2 ;

[0021] Figure 6 This is an enlarged structural diagram of section B in the first embodiment of this utility model;

[0022] Figure 7 This is a schematic diagram of the insulation layer connecting to the outer leaf layer structure in the first embodiment of this utility model. Figure 1 ;

[0023] Figure 8 This is a schematic diagram of the insulation layer connecting to the outer leaf layer structure in the first embodiment of this utility model. Figure 2 ;

[0024] Figure 9 This is a schematic diagram of the internal structure of the outer leaf layer in the first embodiment of this utility model. Figure 1 (Not all of the concrete is shown);

[0025] Figure 10 This is a schematic diagram of the internal structure of the outer leaf layer in the first embodiment of this utility model. Figure 2 (Not all of the concrete is shown);

[0026] Figure 11 This is an enlarged structural diagram of point C in the first embodiment of this utility model;

[0027] Figure 12 This is a partial structural diagram of the outer leaf mold according to the first embodiment of this utility model. Figure 1 ;

[0028] Figure 13 This is a partial structural diagram of the outer leaf mold according to the first embodiment of this utility model. Figure 2 ;

[0029] Figure 14 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0030] Figure 15 This is a schematic diagram of the connector structure according to the second embodiment of the present invention;

[0031] Figure 16 This is a schematic diagram of the groove structure according to the second embodiment of the present invention;

[0032] Figure 17 This is a partial structural diagram of the groove in the second embodiment of the present invention.

[0033] In the diagram: 1. Outer blade layer; 2. Insulation layer; 3. Inner blade layer; 4. Connector; 41. Cross joint; 411. First connector; 412. Second connector; 42. Reinforcing plate; 43. First through groove; 44. Second through groove; 45. Positioning groove; 46. Pull groove; 461. First groove body; 462. Second groove body; 47. Tie rod; 48. Flow hole; 5. Exposed reinforcing bar; 6. Grouting port; 7. Grout outlet. 8. Bolt embedded parts; 9. Demolding lifting point and temporary fixing embedded parts; 10. Window temporary fixing embedded parts; 11. Lifting embedded parts; 12. Beam under formwork bolt connection embedded parts; 13. Steel mesh; 14. First anti-pull rod; 15. Slot; 1501. Groove opening; 1502. Third through slot; 16. Second anti-pull rod; 17. Outer leaf mold; 18. Through rod hole; 19. Plug cap; 20. Guide tube. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0035] like Figures 1 to 11As shown, the first embodiment of this utility model is disclosed. The technical solution adopted includes an insulation layer 2, an outer leaf layer 1 on one side of the insulation layer 2, and an inner leaf layer 3 connected to the other side. The outer leaf layer 1, the insulation layer 2, and the inner leaf layer 3 have window openings of the same size and corresponding positions. The insulation layer 2 is the same height as the outer leaf layer 1, and each side is 50mm shorter than the outer leaf layer 1. The outer leaf layer 1 has waterproof tongue and groove joints at the top and bottom. The inner leaf layer 3 has exposed steel bars 5, which are part of the steel bar skeleton of the inner leaf layer 3. The inner leaf layer 3 also has a grouting port 6, a grout outlet 7, a bolt embedded part 8, a demolding lifting point and temporary fixing embedded part 9, and a beam lower formwork bolt connection embedded part 12. There is a window temporary fixing embedded part 10 inside the window opening of the inner leaf layer 3, and a hoisting embedded part 11 on the top surface of the inner leaf layer 3.

[0036] The insulation layer 2 contains a connector 4, the main body of which is a straight cross-shaped component 41. The cross-shaped structure possesses excellent shear resistance. To improve the connection strength between the connector 4 and the insulation layer 2, and simultaneously enhance the pull-out resistance between them, five parallel reinforcing plates 42 are placed in the middle of the cross-shaped component 41. The insulation layer 2 uses XPS insulation board. During the insulation board processing, the connector 4 is placed in the insulation board mold. A cross-shaped groove is opened on the side plate of the mold, allowing the connector 4 to pass through. After the connector 4 is installed on the mold, molten material is extruded into the mold. The molten material fully contacts the connector 4 and completely fills the gaps between the reinforcing plates 42. After cooling, the mold is disassembled, and the insulation board is removed, yielding an insulation board with the connector 4. The insulation boards are then joined together to form the insulation layer 2. The resin used for the connector 4 is phenolic resin, which is heat-resistant and remains stable during the extrusion and cooling process of the insulation board.

[0037] To improve the pull-out resistance between the connector 4 and the outer blade layer 1 and the inner blade layer 3, a first through groove 43 and a second through groove 44 are formed on the longitudinal plates at both ends of the connector 4. The first through groove 43 is used to connect with the outer blade layer 1, and the second through groove 44 is used to connect with the inner blade layer 3. Figures 9 to 11 As shown, the outer leaf layer 1 contains a steel mesh 13, and a slot 15 is welded on the steel mesh 13. The slot 15 is a cross-shaped slot, which corresponds to the position and size of the connector 4. In order to facilitate the insertion of the connector 4 into the slot 15, a chamfer is provided at the slot opening 1501 as a guide surface. A third through slot 1502 is opened on the slot 15, which corresponds to the position and size of the first through slot 43. After the connector 4 is inserted into the slot 15, concrete is poured. Before the concrete is solidified, the first pull-out rod 14 is used to pass through the upper and lower rows of connectors 4 and the first through slot 43 and the third through slot 1502 of the slot 15. After the concrete is completely solidified, the connector 4, the slot 15 and the first pull-out rod 14 can be integrated into a whole and have excellent pull-out resistance, thereby achieving a stable connection between the outer leaf layer 1 and the inner leaf layer 3 and having excellent pull-out resistance and shear resistance.

[0038] The second anti-pull rod 16 is installed in the second through groove 44 of the upper and lower rows of connectors 4. The positioning groove 45 is opened on the side wall of the second through groove 44. Since the outer leaf layer 1, the insulation layer 2 and the inner leaf layer 3 are produced in an upper and lower arrangement during the shear wall production process, the connector 4 is in a vertical state during the production process. In the vertical state, the positioning groove 45 is opened on the bottom surface of the second through groove 44. The positioning groove 45 can prevent the second anti-pull rod 16 from moving laterally and coming out of the second through groove 44. In order to improve the stability of the second anti-pull rod 16, the positioning groove 45 can also adopt the structure of C-type elastic pipe clamp.

[0039] The production method in this embodiment is as follows:

[0040] Step 1: Assemble the outer leaf mold 17 and the window opening mold on a clean, flat mold table, as follows: Figure 12 , Figure 13 As shown, the outer leaf mold 17 has a rod hole 18 for inserting the first anti-pull rod 14. In order to facilitate the direction guidance of inserting the first anti-pull rod 14 later, a guide tube 20 is provided on the outside of the rod hole 18. The outer leaf mold 17 also has multiple pouring gates in different directions. A release agent is applied to the outside of the outer leaf mold 17.

[0041] Step 2: Place the pre-made steel mesh 13 into the outer leaf mold 17, and place protective layer shims of the same color as the concrete in a quincunx pattern; when installing the steel mesh 13, the first anti-pull rod 14 can be passed through the guide tube 20 and the rod hole 18, and inserted into the slot 1501 of the slot 15 where the steel mesh 13 is installed to assist in the positioning of the steel mesh 13. After the steel mesh 13 is positioned, the first anti-pull rod 14 is pulled out. In order to prevent concrete from leaking out of the rod hole 18 when pouring concrete, a plug cap 19 is installed inside the rod hole 18.

[0042] Step 3: Use tooling with fixing and positioning functions to fix and install the embedded parts of the outer leaf layer 1, conduct concealed acceptance, and proceed to the next step after passing the acceptance.

[0043] Step 4: Precisely place fair-faced concrete with a slump of 200±20mm into the outer leaf mold 17, and vibrate it with a plate vibrator at a frequency of 45HZ for 80-100S. After vibration, check the concrete thickness. It should be less than the design thickness by no more than 2mm and the surface should be flat. The concrete placement height should not be higher than the lowest point of the third through groove 1502 port of slot 15 to avoid concrete entering the third through groove 1502.

[0044] Step 5: According to the layout plan of the insulation board, use an electric heating special cutting tool to cut and number the insulation board according to the design size requirement of 2mm smaller, to ensure that the sides of the insulation board are flat and smooth.

[0045] Step 6: Assemble the insulation layer 2 on the second mold. The insulation board used in the insulation layer 2 is a combination of ordinary insulation board and insulation board prepared by the above-mentioned new insulation board preparation method. First, arrange the insulation boards and number them according to the arrangement. Then, press and lay the insulation boards in a clockwise direction according to the number to ensure that the gap is less than 1mm.

[0046] Step 7: After assembly, inspect the outer length, width, and diagonal of the insulation board, as well as the length, width, and diagonal of the window opening, to ensure that they are within the allowable error range;

[0047] Step 8: Place the pre-assembled insulation board into the outer leaf mold 17. When placing it in, make sure that the connector 4 is aligned with the slot 1501 of the slot 15. The chamfer of the slot 1501 can guide the connector 4 to enter. Use a rubber mallet to tap the surface of the board evenly so that the upper surface of the insulation board is the same height as the mold.

[0048] Step 9: Insert the first anti-pull rod 14 into the outer leaf mold 17 through the rod hole 18. The first anti-pull rod 14 is inserted into the first through groove 403 of the connector 4 and the third through groove 1502 of the slot 15. Use a pressure plate to press down the insulation layer 2 from above to prevent it from floating. The outer leaf mold 17 is equipped with a spring buckle, and the pressure plate has a hook. Use the spring buckle to hook the hook to quickly fix the pressure plate. Then fill the outer leaf mold 17 with concrete through the pouring port. When pouring concrete, use a plate vibrator to vibrate at a frequency of 45 Hz for 80-100 seconds. In order to prevent concrete splashing from blocking the rod hole 18, a plug cap 19 is set inside the rod hole 18. When inserting the first anti-pull rod 14, the plug cap 19 can be pushed out through the first anti-pull rod 14.

[0049] Step 10: Assemble the inner leaf mold on another mold platform and inspect it.

[0050] Step 11: Prepare the inner leaf reinforcement according to the drawings and collect the materials;

[0051] Step 12: Tie the steel reinforcement cage inside the assembled inner page mold. The tying sequence is: upper beam of window, window side column, and lower wall of window. According to the force transmission requirements, wrap the column reinforcement with the beam reinforcement. Before tying the inner layer of steel mesh plate of the lower wall of window, put a weight reduction plate in.

[0052] Step 13: Install bolt embedded parts 8, demolding lifting point and temporary fixing embedded parts 9, window temporary fixing embedded parts 10, beam under formwork bolt connection embedded parts 12, hoist embedded parts 11 and pull-out steel bars;

[0053] Step 14: Insert the second anti-pull rod 16 into the second through groove 44 of the connector 4 at both ends of the insulation layer 2, and make the second anti-pull rod 16 enter the positioning groove 45;

[0054] Step 15: Remove the pressure plate on the insulation layer 2, hoist the inner leaf mold and the reinforcing bars onto the outer leaf mold 17 for overall assembly and connection, use foam strips to seal the reinforcing bars at the inner leaf side mold, and arrange the internal reinforcing bars in a quincunx pattern using shims, while ensuring that the reinforcing bars avoid the connector 4 and the second anti-pull rod 16.

[0055] Step 16: Install the pre-embedded tooling on the side mold, and then install the lifting and hoisting internal threaded sleeve;

[0056] Step 17: After the above procedures are completed, conduct a concealed inspection. Once the inspection is passed, proceed to the next procedure.

[0057] Step 18: Use fair-faced concrete with a slump of 160±20mm for secondary placement and vibrate with a vibrator.

[0058] Step 19: Use a screed to level the wall panel surface, then apply the initial trowel. At the same time, place a 5mm thick grooved flat iron on the inner edge and press it down with a tool until it is flush with the wall panel surface. Then, finish the wall panel surface.

[0059] Step 20: After the inner leaf concrete has initially set, remove the grooving flat iron and use a special grooving trowel to smooth and straighten along the edge mold, eliminating air bubbles on the grooving surface, while ensuring that the 5mm groove line is straight.

[0060] Step 21, Curing: In spring, summer and autumn, use plastic film to cover and perform static and moist curing. The film should be in close contact with the concrete surface, and the area of ​​the film should be slightly larger than the area of ​​the concrete surface. The four corners of the film should be fixed with clips. In winter, use intelligent steam curing to perform constant temperature and humidity curing.

[0061] Step 22, Demolding Marking: When the strength of the test block cured under the same conditions reaches 75% of the design strength, the component is ready for demolding; lift the plastic film to ensure that the temperature difference between the final concrete surface and the outside temperature is ≤20℃, and remove the inner leaf mold, outer leaf mold, and window opening mold in sequence; due to the large adsorption force of the window opening mold, a guide chain is used to pull the mold inward from the concrete through horizontal tension;

[0062] Step 23: Sawing the first anti-pull rod 14 protruding from the side of the outer blade layer 1 to make the side of the outer blade layer 1 flat.

[0063] Step 24, Finished Product Inspection: Check the appearance quality, dimensional deviations, and markings of the finished product, and record the findings;

[0064] Step 25, Warehousing: Transport the wall panels to the outdoor storage yard and allow them to cure naturally for at least 14 days.

[0065] To save assembly time, steps 4-6 can be performed simultaneously with steps 1-3, and steps 10-13 can be performed simultaneously with steps 1-9. Example 2

[0066] like Figures 14 to 17 As shown, the difference between this embodiment and embodiment 1 is that the insulation layer 2 uses a double-layer insulation board, and the joints are staggered.

[0067] The connector 4 has a Z-shaped structure, including an L-shaped first connector 411 and a straight second connector 412. The first connector 411 is located in the insulation board near the outer blade layer 1, and the second connector 412 is located in the insulation board near the inner blade layer 3. The connection surfaces of the first connector 411 and the second connector 412 are exposed, and the end face of the second connector 412 is exposed.

[0068] To improve shear and pull-out resistance, grooves 46 are formed on the first connector 411 and the second connector 412. The grooves 46 include a first groove 461 located on the transverse support plate of the first connector 411 and a second groove 462 located on the second connector 412. The first groove 461 is a straight groove and the second groove 462 is an L-shaped groove. The grooves 46 also include a tie rod 47, which is a U-shaped structure and slides in contact with the grooves 46. By pulling the first connector 411 and the second connector 412 together, the pull-out and shear resistance of the two connectors can be improved.

[0069] When pouring the inner leaf layer 3, the concrete enters the groove 46 from the port of the first groove 461, connecting the first connector 411 and the second connector 412 into a whole. In order to facilitate the concrete to enter the groove 46, a flow hole 48 communicating with the outside is opened on one side of the groove 46.

[0070] During the insulation board processing, after arranging the first connector 411 and the second connector 412 according to their positions, the first connector 411 and the second connector 412 are initially positioned using a steel wire keel. The first connector 411 is placed in the mold of the first layer of insulation board, and the second connector 412 is placed in the mold of the second layer of insulation board. A cross groove is opened on one side plate of each of the two molds, through which the connector 4 can pass for further positioning. The other end of the connector 4 slides in contact with the side plate opposite to the groove. After the connector 4 is installed on the mold, molten material is extruded into the mold. The molten material fully contacts the connector 4 and fully fills the gap between the reinforcing plates 42. After cooling, the mold is disassembled, the insulation board is taken out, and the sides of the insulation board are trimmed and polished to ensure that the contact surfaces of the first connector 411 and the second connector 412 are fully exposed. Thus, insulation boards with the first connector 411 and insulation boards with the second connector 412 are obtained respectively.

[0071] The difference in production steps between Example 1 and Example 2 is as follows:

[0072] Insulation layer 2 consists of two layers of insulation boards. First, the insulation boards are laid out and numbered according to the layout. During layout, the two layers are staggered. Then, following the layout plan, an electrically heated cutting tool is used to cut and number the boards to 2mm smaller than the design dimensions, ensuring the sides of the insulation boards are flat and smooth. A special adhesive is evenly applied to the sides of the insulation boards. The first layer of insulation boards is assembled on the second mold. The first layer is a combination of ordinary insulation boards and a new type of insulation board with a first connector 411. The boards are pressed and laid clockwise according to the numbers, ensuring gaps are less than 1mm. Then, the second layer of insulation boards is assembled. The second layer is a combination of ordinary insulation boards and a new type of insulation board with a second connector 412. Apply a special adhesive evenly to the back and sides of the second-layer insulation board, and press and lay it in a clockwise direction according to the numbering. When laying, ensure that the first groove 461 and the second groove 462 are aligned, and use a rubber mallet to evenly tap the surface of the insulation board to make it firmly bonded together. Insert the tie rod 47 into the port of the first groove 461. After it is in contact with the bottom surface, twist the tie rod 47 so that one of the hook-shaped structures at both ends of the tie rod 47 enters the groove section of the second groove 462 that is perpendicular to the first groove 461, and the other hook-shaped structure hooks onto the port of the first groove 461 to complete the pull. The tie rod 407 can improve the pull resistance and shear resistance of the connector 4. After assembly, check the outer length, width, and diagonal of the insulation board, as well as the length, width, and diagonal of the window opening, to ensure that they are within the allowable error range.

[0073] The mechanical connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It is common knowledge.

[0074] Components not described in detail in this article are existing technologies.

[0075] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated precast sandwich insulated shear wall, comprising an outer leaf layer (1), wherein the outer leaf layer (1) is connected to an insulation layer (2), and the insulation layer (2) is connected to an inner leaf layer (3), characterized in that: The insulation layer (2) is equipped with a connector (4), and the connector (4) has through slots at both ends; the outer leaf layer (1) contains a steel mesh (13), and the inner leaf layer (3) contains a steel skeleton. The connector (4) extends into the outer leaf layer (1) and the inner leaf layer (3). The connector (4) is also connected to a first pull rod (14) and a second pull rod (16). The first pull rod (14) is in the outer leaf layer (1), and the second pull rod (16) is located in the inner leaf layer (3). Both the first pull rod (14) and the second pull rod (16) pass through the through slots.

2. The integrated precast sandwich insulated shear wall according to claim 1, characterized in that: The through groove includes a first through groove (43), which is located in the outer leaf layer (1); the steel mesh (13) is connected to a slot (15), which corresponds to the position and size of the connector (4), and the first pull rod (14) passes through the slot (15) and the first through groove (43).

3. The integrated precast sandwich insulated shear wall according to claim 2, characterized in that: The main body of the connector (4) is a cross-shaped piece (41), the slot (15) is a cross-shaped groove, and the first through groove (43) is opened on the two support plates of the connector (4); the slot (15) is provided with a third through groove (1502), the first through groove (43) and the third through groove (1502) are in corresponding positions and matched in size, and the first anti-pull rod (14) passes through the third through groove (1502) and the first through groove (43).

4. The integrated precast sandwich insulated shear wall according to claim 3, characterized in that: The cross-shaped component (41) has a reinforcing plate (42) which is perpendicular to the cross-shaped component (41) and located in the insulation layer (2).

5. The integrated precast sandwich insulated shear wall according to claim 3, characterized in that: The insulation layer (2) is a double-layer insulation structure, and the two insulation layers are staggered.

6. The integrated precast sandwich insulated shear wall according to claim 5, characterized in that: The cross-shaped component (41) has a Z-shaped structure and includes a first connecting body (411) and a second connecting body (412). The first connecting body (411) and the second connecting body (412) are provided with a connecting groove (46), and a pull rod (47) is provided in the connecting groove (46).

7. The integrated precast sandwich insulated shear wall according to claim 1, characterized in that: The through-slot includes a second through-slot (44) located in the inner leaf layer (3), through which the second pull rod (16) passes.

8. The integrated precast sandwich insulated shear wall according to claim 7, characterized in that: The second through groove (44) has a positioning groove (45) on its side wall, and the second anti-pull rod (16) is in the positioning groove (45).

9. The integrated precast sandwich insulated shear wall according to claim 1, characterized in that: The insulation layer (2) is coplanar with the outer leaf layer (1) and its width is smaller than that of the outer leaf layer (1).

10. The integrated precast sandwich insulated shear wall according to claim 1, characterized in that: The connectors (4) within the insulation layer (2) are connected by a keel.

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