A toughened sandwich thermal insulation composite wallboard and its preparation method

Abstract

The present invention discloses a toughened sandwich insulation composite wall panel and a preparation method thereof, belonging to the technical field of prefabricated housing construction engineering. A toughened sandwich insulation composite wall panel comprises at least two substrate inner blades and substrate outer blades corresponding to the substrate inner blades, an insulation board is provided between the substrate inner blades and the substrate outer blades, edge connectors are provided at both ends of the insulation board, and at least one center connector is provided in the middle of the insulation board; adjacent substrate inner blades and adjacent substrate outer blades are spaced apart; a toughening layer is provided on the outer surface of the substrate inner blades and the substrate outer blades; protective layers are provided at both lateral ends of the insulation board; the present invention has the following effects: the edge connectors and the center connector can achieve precise positioning, have excellent shear resistance, and enhance the integrity of the wall panel; when the center connector web is detachably connected to the center connector support arm, the center connector can meet the use of inter-board gaps of different widths.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated house construction engineering, and in particular to a toughened sandwich thermal insulation composite wallboard and a preparation method thereof. Background Art

[0002] Most existing walls are constructed using various types of masonry or blocks. These walls are thick, heavy, labor-intensive, slow to construct, and have poor seismic performance. At the same time, with the continuous improvement of living standards, housing construction is subject to functional requirements. In addition to traditional requirements such as safety, applicability, and durability, materials must also possess thermal insulation, fire resistance, and sound insulation properties.

[0003] To address these issues, some prefabricated wall panels have emerged in China over the years. However, the manufacturing process is complex, requiring custom production based on specific project dimensions. This prohibits pre-production and prevents true industrialization and commercialization of building products. Furthermore, these wall panels are prone to cracking during use and exhibit poor thermal insulation, sound absorption, and soundproofing.

[0004] Patent No. 202222008565.7 discloses a sandwich wall panel, which includes an insulation board and concrete boards on both sides. Metal mesh is provided inside the concrete boards. A first through hole is provided inside the insulation board, and a connector with both ends abutting the metal mesh is passed through the first through hole. The connector can accurately control the distance between the outer wire mesh and the insulation board, and the support block can limit and fix the metal mesh in all directions. However, the inner and outer blades of the sandwich wall panel are made of concrete, and the overall weight is large, which increases the difficulty of transportation and construction. The wall panel has multiple connectors and positioning parts, and the production process is complicated and maintenance is difficult.

[0005] Patent No. 201720797272.8 discloses a prefabricated prestressed insulated exterior wall panel. The exterior wall panel includes an insulating core panel, a steel mesh located on both sides of the insulating core panel, and a concrete layer cast on the steel mesh. The insulating core panel is provided with a plurality of continuous insulating core panel ribs, and the concrete layer is provided with a plurality of concrete ribs. Shear connectors connected to the steel mesh are interspersed between adjacent insulating core panel ribs. Prestressed tendons are provided in the grooves formed between adjacent insulating core panel ribs and / or in the grooves formed between adjacent concrete ribs. The wall panel uses insulating core panel ribs to reduce the amount of concrete used, reduce the deadweight of the wall panel, and improve the thermal insulation performance. However, the outer layer is made of concrete, which requires the preparation of steel mesh and prestressed tendons. The overall weight is relatively large, the insulating panel structure is complex, and it is difficult to process, which increases labor costs. Although the thermal insulation effect is improved, the thermal insulation energy-saving efficiency is low. The installation of prestressed tendons requires the installation of tensioning equipment, which has high requirements for production conditions and complex production processes. In addition, prestressing poses safety risks during on-site construction.

[0006] Patent No. 201710536108.6 discloses a lightweight composite insulation exterior wall panel, which includes an insulation core panel, FRP shear connectors, steel mesh on both sides of the insulation core panel, and a concrete layer cast on the steel mesh. The insulation core panel is provided with a full-length insulation core panel rib, and the concrete layer is provided with a plurality of concrete ribs that intersect and cooperate with the insulation core panel ribs. The outer layer of this invention uses concrete, which requires the preparation of steel mesh and prestressed tendons. The overall weight is relatively large, and the sound insulation performance is not outstanding. The structure is complex and difficult to process, which increases processing and transportation costs.

[0007] Patent No. 202210273901.2 discloses a ceramic composite wall panel with a reinforced steel truss and a surface-reinforced aluminum alloy plate facing substrate. The composite wall panel includes a decorative aluminum alloy plate, a foamed ceramic plate, a fiber cement mortar surface layer, a steel mesh, a light steel keel frame, a steel truss, a substrate concrete layer and a calcium silicate board. The present invention has a multi-layer structure and multiple components, a complicated production process, low production efficiency, and consumes a lot of manpower costs. The present invention sets a keel structure, and requires opening holes to pour foam concrete into the formwork. The on-site wet operation is large and the requirements for substrate equipment are high. Although foamed ceramic plates, light keels, and foamed concrete are used, the addition of steel trusses and other components makes the overall weight large, which increases the load and seismic force of the structure.

[0008] Patent No. 202120756780.8 discloses an ALC composite wall panel structure. Composed of an ALC protective layer, an insulation layer, a steel mesh, a finishing layer, and C-shaped slots, the ALC composite wall panel boasts high structural strength, excellent thermal insulation, easy fabrication and splicing, and excellent shrinkage resistance and waterproofing. However, the panels' surface layers are loosely connected, and peeling and shedding between them can occur under heavy loads, resulting in poor overall performance.

[0009] Patent No. 202221567913.8 discloses a combined multi-layer composite insulation exterior wall panel, which includes two layers of autoclaved sand aerated board, an insulation layer, vertical connecting rods, and a fixed plate. The connecting rod is placed in the sand aerated board, and the bolts on the connecting rod pass through the fixed plate and are fastened in the nut. The invention uses a composite structure of autoclaved sand aerated board and insulation board with good insulation performance, but the bolts and metal connectors may form thermal bridges, thereby affecting the insulation performance of the wall panel. The fixed plate ensures the durability and deformation performance of the exterior wall panel, but the fixed plate is not tightly attached to the surface of the wall panel, and the sealing is poor. Moisture and air can easily enter the wall panel, thereby affecting the performance of the wall panel. Although the vertical tie rod provides stability in the vertical direction, when the connection between the two pieces of autoclaved sand aerated board is weak, such as under the action of strong winds, the strength is insufficient. The use of fixed plates and bolts will cause stress concentration at the nodes, and the structure will weaken after long-term use.

[0010] Patent No. 201611103471.0 discloses an assembled, staggered, sound-insulating ALC panel composite wall. This wall is composed of two main ALC panel walls of varying thickness, connecting studs, and an internal filling of sound-insulating and fire-resistant cotton. Fiber mesh cloth and gypsum board can be installed on the outer surface to protect the main wall surface. The wall panels are structurally well-arranged, offering excellent comprehensive sound insulation, moderate thermal insulation, and superior fire resistance. However, the design of the wall panels fails to consider the inter-panel splicing structure; the internal studs of the panels vary, making positioning and assembly time-consuming and labor-intensive; and the infill layer is not tightly connected to one of the ALC panels, making delamination prone. Summary of the Invention

[0011] In view of the defects of the prior art, the present invention provides a toughened sandwich thermal insulation composite wall panel and a preparation method thereof. The wall panel has excellent thermal insulation effect, light wall weight, excellent crack resistance and good thermal insulation composite wall integrity.

[0012] To achieve the above objectives, the present invention provides a toughened sandwich thermal insulation composite wall panel, the specific technical solution of which is as follows:

[0013] A toughened sandwich insulation composite wall panel comprises at least two base material inner blades and base material outer blades corresponding to the base material inner blades, an insulation board is provided between the base material inner blades and the base material outer blades, edge connectors are provided at both ends of the insulation board, and at least one center connector is provided in the middle of the insulation board; adjacent base material inner blades and adjacent base material outer blades are arranged at intervals; a toughening layer is provided on the outer surface of the base material inner blade and the base material outer blade; protective layers are provided at both lateral ends of the insulation board; the edge connector is provided with an edge connector web and edge connector flanges on both sides of the edge connector web, edge connector support arms perpendicular to the edge connector web plane are arranged at intervals on the inner side surface of the edge connector web, edge connector positioning bosses are provided on the ends of the edge connector support arms, and the edge connector positioning bosses are used for the edge connector and the base For positioning the outer blade of the material, mold support arms perpendicular to the plane of the edge connector web are arranged at intervals on the outer side surfaces of the edge connector web; the center connector is provided with a center connector web and a center connector flange located on both sides of the center connector web, and center connector support arms perpendicular to the plane of the center connector web are arranged at intervals in the length direction of both side surfaces of the center connector web, the center connector support arms are arranged in the direction close to the outer blade of the base material, the center connector web is fixedly or detachably connected to the center connector support arms, and the two ends of the center connector web are arranged in the spaces formed respectively between adjacent base material inner blades and adjacent base material outer blades, and the center connector positioning bosses are arranged between adjacent base material outer blades; the spaces formed respectively between adjacent base material inner blades and adjacent base material outer blades are filled with an inter-plate connecting layer for anchoring the center connector.

[0014] Furthermore, the central connector web and the central connector support arm are detachably connected in the following manner: one central connector support arm and another central connector support arm are fixedly connected to the central connector web via a connecting component.

[0015] Furthermore, the connecting component is a support arm tenon or a connecting pin or a connecting column or a smooth round peg or a bolt.

[0016] Furthermore, an edge connector hoisting hole is provided on one end of the edge connector web, and a center connector hoisting hole is provided on one end of the center connector web.

[0017] Furthermore, it also includes an inner thread sleeve, which is respectively arranged close to the central connecting piece flange on the inner blade side of the base material and the edge connecting piece flange on the inner blade side of the base material.

[0018] Furthermore, the inner thread sleeve is arranged on one side of the edge connector flange and the center connector flange, and a sleeve placement opening is provided at the end of the inner blade of the base material.

[0019] Furthermore, the inner thread sleeve is arranged in the space between the edge connector flange and the top end of the center connector flange.

[0020] Furthermore, an anchoring boss is provided on the outer side of the inner thread sleeve.

[0021] Furthermore, the length of the base material inner blade plate and the base material outer blade plate is 3.0m to 4.2m, the width is 600mm to 3m, with 300mm as the size module, and the thickness is not less than 70mm.

[0022] Furthermore, the base material inner blade plate and the base material outer blade plate are foamed ceramic plates or autoclaved aerated concrete plates; the compressive strength of the foamed ceramic plates is not less than 7 MPa, and the compressive strength of the autoclaved aerated concrete plates is not less than 2.5 MPa.

[0023] Furthermore, the toughening layer is made of one of the following materials: high-ductility concrete, reinforced fine-stone concrete, cement mortar steel mesh, and carbon fiber cloth.

[0024] Furthermore, when the material used for the toughening layer is high ductility concrete or cement mortar steel mesh, the thickness shall not be less than 15mm; when the material used for the toughening layer is reinforced fine stone concrete, the thickness shall not be less than 50mm; when the material used for the toughening layer is carbon fiber cloth, the structural adhesive shall be epoxy resin, and the carbon fiber cloth shall include longitudinal carbon fiber cloth strips and transverse carbon fiber cloth strips, the thickness of the carbon fiber cloth shall not be less than 0.15mm, and the unit area mass shall not be less than 200g / m 2 .

[0025] Furthermore, the insulation board is made of one of polystyrene board, extruded board, graphite polystyrene, and perlite-wrapped vacuum insulation board.

[0026] Furthermore, when the insulation board is a polystyrene board, its thickness shall not be less than 90 mm; when the insulation board is an extruded board, its thickness shall not be less than 80 mm; when the insulation board is graphite polystyrene, its thickness shall not be less than 75 mm; when the insulation board is a vacuum insulation board wrapped with perlite, its thickness shall not be less than 6 mm.

[0027] Furthermore, fireproof isolation blocks are provided on both sides of the insulation board.

[0028] Furthermore, a block groove is provided on the outer side of the fireproof isolation block.

[0029] A method for preparing the aforementioned toughened sandwich insulation composite wallboard comprises the following steps:

[0030] S1. Prefabricate the inner blades and outer blades of the base material in the factory, and perform precise cutting on the inner blades and outer blades of the base material according to the design requirements;

[0031] S2. Position and place the side mold on the mold table according to the required board size and use limiters to fix it to form a mold cavity. Place a pad at the position where the outer blade of the substrate is placed in the mold cavity, and add a toughening layer to the same height as the pad;

[0032] S3. Placing the outer blades of the substrate on the toughening layer formed in the mold cavity, with adjacent outer blades of the substrate spaced apart, and outer blades of different substrates spaced apart, with a gap formed between the outer blades of the substrate and the side mold;

[0033] S4, placing the edge connector in the gap between the outer blade of the substrate and the side mold, and the mold support arm contacts the side mold to support the edge connector;

[0034] The central connecting member is placed in the space between adjacent substrate outer blades, the central connecting member support arm supports the central connecting member in the space between different substrate outer blades, and the central connecting member positioning boss is connected to the side of the substrate outer blade;

[0035] S5. Inject slurry into the gap between the outer blade of the substrate and the side mold to form a protective layer, and inject slurry into the space between adjacent outer blades of the substrate to form an inter-plate connecting layer;

[0036] S6. Place an insulation board on the inner surface of the outer blade of the base material, and cure the toughening layer, protective layer and inter-board connecting layer to solidify;

[0037] S7. placing an inner thread sleeve in the space around the edge connector flange and the center connector flange, and bonding the inner thread sleeve to the edge connector flange and the center connector flange respectively;

[0038] S8. Place the base material inner blade on the insulation board;

[0039] S9, pouring slurry into the gap between the inner blade of the base material and the side mold to form a protective layer, and injecting slurry into the space between the inner blades of adjacent base materials to form an inter-plate connecting layer;

[0040] S10. Add a toughening layer above the inner leaf plate of the base material, and after curing and solidification, form a toughened sandwich insulation composite wall panel.

[0041] Furthermore, a toughening layer is added in S2, specifically: when the toughening layer is high-ductility concrete, the high-ductility concrete is poured to the same height as the pad; when the toughening layer is reinforced fine stone concrete, the longitudinal steel bars and the transverse steel bars are first tied and fixed in the mold cavity of the formwork, and the fine stone concrete is poured to the same height as the pad; when the toughening layer is cement mortar wire mesh, the wire mesh is first tied and fixed in the mold cavity of the formwork, and cement mortar is poured to the same height as the pad; when the toughening layer is carbon fiber cloth, phenolic resin is applied, and longitudinal carbon fiber cloth strips and transverse carbon fiber cloth strips are attached to the mold cavity of the formwork according to the design specifications, and phenolic resin is applied to the surface again. The thickness of the carbon fiber cloth is consistent with the thickness of the pad.

[0042] Furthermore, a toughening layer is added in S10, specifically: when the toughening layer is high-ductility concrete, the high-ductility concrete is pressed or poured on the upper surface of the inner blade of the substrate to a specific thickness; when the toughening layer is reinforced fine stone concrete, the longitudinal steel bars and the transverse steel bars are first tied and fixed on the upper surface of the inner blade of the substrate, and the fine stone concrete is poured to a specific thickness; when the toughening layer is cement mortar wire mesh, the wire mesh is first tied and fixed on the upper surface of the inner blade of the substrate, and cement mortar is poured to a specific thickness; when the toughening layer is carbon fiber cloth, phenolic resin is applied, and longitudinal carbon fiber cloth strips and transverse carbon fiber cloth strips are attached to the upper surface of the inner blade of the substrate according to the design specifications, and phenolic resin is applied to the surface again.

[0043] Furthermore, in step S6, it also includes: applying phenolic resin on both sides of the insulation board, and placing fireproof isolation blocks outside the adhesive layer.

[0044] Furthermore, in step S7, the inner thread sleeve is arranged at the top of the edge connector flange and the center connector flange; or, the inner thread sleeve is arranged on the side of the edge connector flange and the center connector flange, and a sleeve placement opening is reserved at the end of the inner blade of the base material.

[0045] The present invention has the following beneficial effects:

[0046] (1) The present invention realizes the reliable connection between the toughening layer and the inner blade plate and the outer blade plate of the substrate, and has good overall anti-deformation performance, which greatly improves the bearing capacity and rigidity of the composite wallboard;

[0047] (2) The edge connectors and center connectors can achieve precise positioning, have excellent shear resistance, and enhance the integrity of the wall panels;

[0048] (3) When the web of the center connector and the support arm of the center connector are detachably connected, the center connector can meet the use of inter-plate gaps of different widths. Center connector support arms of different sizes can be used according to the inter-plate gaps. The installation and disassembly are convenient and the application range is wide.

[0049] (4) The toughened sandwich insulation composite wall panel of the present invention adopts a flat mold manufacturing method, which is in line with industrial development and realizes industrial production. The tooling level is high. The connecting sleeve provided in the inner leaf of the wall panel facilitates the connection between the wall panel and the overall structure, saving construction cost and labor cost, and having good economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 A three-dimensional diagram of a toughened thermal insulation sandwich composite wall panel toughened with high ductility concrete of two base material inner blades and base material outer blades;

[0051] Figure 2 A top view of a toughened sandwich insulation composite wall panel with high ductility concrete toughened inner thread sleeves on the side of edge connectors for two base material inner blades and base material outer blades;

[0052] Figure 3 for Figure 2 Cross-sectional view along the AA axis;

[0053] Figure 4 A perspective view of a base material inner blade plate provided with a sleeve placement opening;

[0054] Figure 5 A cross-sectional view of a toughened thermal insulation sandwich composite wall panel having two base material inner blades and base material outer blades, wherein the inner thread sleeves toughened with reinforced fine stone concrete are located on the side of the edge connector;

[0055] Figure 6 A cross-sectional view of a toughened thermal insulation sandwich composite wall panel having two base material inner blades and base material outer blades with carbon fiber cloth-toughened inner thread sleeves on the side of the edge connector;

[0056] Figure 7 A top view of a toughened thermal insulation sandwich composite wall panel toughened with carbon fiber cloth for two base material inner blades and base material outer blades;

[0057] Figure 8 A three-dimensional diagram of a toughened thermal insulation sandwich composite wall panel toughened with high-ductility concrete, comprising three base material inner blades and base material outer blades;

[0058] Figure 9 A cross-sectional view of a toughened thermal insulation sandwich composite wall panel having three base material inner blades and base material outer blades, with the inner thread sleeves toughened with high ductility concrete at the top of the edge connector flanges;

[0059] Figure 10 is a perspective view of an edge connector;

[0060] Figure 11 is a side view of the edge connector;

[0061] Figure 12 A perspective view of an inner thread sleeve with an anchoring boss;

[0062] Figure 13 A perspective view of the central connecting piece;

[0063] Figure 14 A perspective view of a central connector with a groove-tenon structure as its supporting arm;

[0064] Figure 15 is a three-dimensional diagram of a web provided with a first rectangular splicing hole;

[0065] Figure 16 A perspective view of a center connector support arm of a groove-tenon structure;

[0066] Figure 17 A perspective view of a central connector with a central connector support arm having a latch structure;

[0067] Figure 18 is a three-dimensional view of a web provided with a second rectangular splicing hole;

[0068] Figure 19 A perspective view of a central connector support arm with a connecting pin and a connecting groove;

[0069] Figure 20 is a perspective view of another central connector support arm with a connecting pin and a connecting groove;

[0070] Figure 21 A three-dimensional diagram of a web provided with double circular splicing holes;

[0071] Figure 22 A perspective view of a central connector support arm with a connecting post and a slot;

[0072] Figure 23 A three-dimensional diagram of the support arm with the connecting column and the slot connected;

[0073] Figure 24 A perspective view of a central connector with a central connector support arm connected by a snap-fit connection;

[0074] Figure 25 A three-dimensional diagram of the central connector support arm and the snap-fit component;

[0075] Figure 26 A perspective view of a central connector with support arms connected by bolts;

[0076] Figure 27A perspective view of the support arm with a bolted central connector;

[0077] Figure 28 A perspective view of the center connector support arm and bolt and nut components;

[0078] Figure 29 A three-dimensional diagram of the spacer placed in the side mold;

[0079] Figure 30 A three-dimensional diagram of the assembled state of the side mold and the mold connector;

[0080] Figure 31 A three-dimensional image of the toughening layer added to the mold in step S2;

[0081] Figure 32 A cross-sectional view of step S2 of preparing a toughened sandwich thermal insulation composite wallboard;

[0082] Figure 33 A cross-sectional view of step S3 of preparing a toughened sandwich thermal insulation composite wallboard;

[0083] Figure 34 A cross-sectional view of step S5 of preparing a toughened sandwich thermal insulation composite wallboard;

[0084] Figure 35 A cross-sectional view of step S6 of preparing a toughened sandwich thermal insulation composite wallboard;

[0085] Figure 36 A cross-sectional view of step S7 of preparing a toughened sandwich thermal insulation composite wallboard;

[0086] Figure 37 A three-dimensional diagram of the inner thread sleeve connected to the top end of the flange of the central connector;

[0087] Figure 38 A perspective view of the inner thread sleeve connected to the side of the central connecting piece;

[0088] Figure 39 A cross-sectional view of step S8 of preparing a toughened sandwich thermal insulation composite wallboard;

[0089] Figure 40 A cross-sectional view of step S9 of preparing a toughened sandwich thermal insulation composite wallboard;

[0090] Figure 41 It is a cross-sectional view of step S10 of preparing a toughened sandwich thermal insulation composite wall panel.

[0091] Description of reference numerals:

[0092] 1. Toughening layer; 2. Insulation board; 3. Protective layer; 4. Edge connector; 4a. Edge connector flange; 4b. Edge connector web; 4c. Edge connector support arm; 4c'. Edge connector positioning boss; 4d. Mold support arm; 4e. Edge connector lifting hole; 5. Inner blade of substrate; 5a. Outer blade of substrate; 6. Center connector; 6a. Center connector flange; 6b. Center connector web; 6b'. Center connector lifting hole; 6c. Center connector support arm; 6d. Center connector positioning boss; 6e. First rectangular splicing hole; 6f. Support arm groove; 6g. Support arm tenon; 6 h, connecting pin; 6i, connecting groove; 6j, second rectangular splicing hole; 6k, double-circular splicing hole; 6m, connecting column; 6n, slot; 6p, buckle; 6q, smooth round bolt; 6r, round hole; 6s, nut; 6t, bolt; 6u, threaded hole; 7, inter-plate connecting layer; 8, mold connector; 9, fireproof isolation block; 9a, block groove; 10, side mold; 11, limiter; 12, inner thread sleeve; 12a, anchor boss; 13, longitudinal steel bar; 14, transverse steel bar; 15, longitudinal carbon fiber cloth strip; 16, transverse carbon fiber cloth strip; 17, pad; 18, mold base; 19, sleeve placement opening. DETAILED DESCRIPTION

[0093] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0094] A toughened sandwich insulation composite wall panel includes at least two base material inner blades 5 and base material outer blades 5a corresponding to the base material inner blades 5, an insulation board 2 is provided between the base material inner blades 5 and the base material outer blades 5a, edge connectors 4 are provided at both ends of the insulation board, and at least one center connector 6 is provided in the middle of the insulation board 2.

[0095] Adjacent substrate inner blades 5 and adjacent substrate outer blades 5a are spaced apart. The inner and outer blades 5a have a length of 3.0 to 4.2 meters, a width of 600 to 3 meters, a dimensional modulus of 300 mm, and a thickness of no less than 70 mm. Specifically, the inner and outer blades 5a are constructed of foamed ceramic panels or autoclaved aerated concrete panels, offering advantages such as environmental friendliness, energy efficiency, moisture resistance, and sound insulation. To ensure the durability of the toughened sandwich insulation composite wallboard, the compressive strength of the foamed ceramic panels must be no less than 7 MPa, and the compressive strength of the autoclaved aerated concrete panels must be no less than 2.5 MPa.

[0096] A toughening layer 1 is applied to the outer surfaces of the inner and outer blades 5a of the substrate. To strengthen the connection between the toughening layer and the inner and outer blades 5a, respectively, an adhesive can be added between the layers to ensure a reliable bond between the two materials. Specifically, the toughening layer 1 is made of one of high-ductility concrete, reinforced fine-stone concrete, cement mortar steel mesh, or carbon fiber cloth. The reinforced fine-stone concrete and cement mortar steel mesh contain longitudinal reinforcement 13 and transverse reinforcement 14, respectively. C30 concrete is preferably used for the fine-stone concrete, and Grade I or II polymer-modified cement mortar is preferred for the cement mortar. Preferably, when the material used for the toughening layer 1 is high ductility concrete or cement mortar steel mesh, the thickness is not less than 15 mm; when the material used for the toughening layer 1 is reinforced fine stone concrete, the thickness is not less than 50 mm; when the material used for the toughening layer 1 is carbon fiber cloth, the structural adhesive is epoxy resin, and the carbon fiber cloth includes longitudinal carbon fiber cloth strips 15 and transverse carbon fiber cloth strips 16, the thickness of the carbon fiber cloth is not less than 0.15 mm, and the unit area mass is not less than 200 g / m 2 More specifically, the layout of the carbon fiber cloth is further described, such as Figure 9 As shown, the longitudinal carbon fiber cloth strips 15 and the transverse carbon fiber cloth strips 16 are arranged at equal intervals. The total width of the longitudinal carbon fiber cloth strips 15 is no less than 1 / 2 of the width of the substrate inner blade 5 and the substrate outer blade 5a, and the total width of the transverse carbon fiber cloth strips 16 is no less than 1 / 4 of the length of the substrate inner blade 5 and the substrate outer blade 5a. The toughening layer 1 improves the durability of the toughened sandwich insulation composite wall panel and significantly reduces its water absorption rate. During transportation and installation, it can effectively prevent damage to the wall surface from bumps and collisions, achieving the integrated effect of enclosure, insulation, and decoration. The toughened sandwich insulation composite wall panel of the present invention has a long service life, reduces maintenance costs, and has good economic benefits. The requirements of energy conservation, heat preservation, strength and toughness are met, and the overall deformation performance is improved. The toughening layer of the present invention improves the tensile strength of the toughened sandwich insulation composite wall panel. The present invention realizes the reliable connection of the toughening layer with the inner leaf plate and the outer leaf plate of the substrate respectively, and the overall anti-deformation performance is good, which greatly improves the bearing capacity and rigidity of the composite wall panel.

[0097] Protective layers 3 are provided at each lateral end of the insulation board 2 to protect the sides of the inner and outer blades 5a from impact or knock damage. Specifically, the slurry for the protective layer 3 can be the same as that for the toughening layer 1, including high-ductility concrete, fine aggregate concrete, cement mortar, or other concrete slurries, such as high-strength concrete slurry. When using carbon fiber cloth as the toughening layer 1, high-strength concrete slurry is used to form the protective layer 3.

[0098] The spaces between adjacent base inner blades 5 and adjacent base outer blades 5a are filled with an inter-plate connecting layer 7, which is used to anchor the central connector 6. Specifically, the slurry for the inter-plate connecting layer 7 can be the same as the slurry for the toughening layer 1. If the slurry is the same, it can be cast integrally with the toughening layer 1. The slurry can be selected from high-ductility concrete, fine aggregate concrete, cement mortar, or other concrete slurries, such as high-strength concrete slurry. When using carbon fiber cloth as the toughening layer 1, high-strength concrete slurry is used to form the inter-plate connecting layer 7.

[0099] like Figure 10 and Figure 11 As shown, the edge connector 4 is provided with an edge connector web 4b and edge connector flanges 4a located on both sides of the edge connector web 4b. Edge connector support arms 4c perpendicular to the plane of the edge connector web 4b are provided at intervals on the inner side surface of the edge connector web 4b. The end of the edge connector support arm 4c is provided with an edge connector positioning boss 4c'. The edge connector positioning boss 4c' is used to position the edge connector 4 and the outer blade of the substrate. Mold support arms 4d perpendicular to the plane of the edge connector web 4b are provided at intervals on the outer side surface of the edge connector web 4b.

[0100] like Figure 13 As shown, the central connector 6 is provided with a central connector web 6b and central connector flanges 6a located on both sides of the central connector web 6b. Central connector support arms 6c are provided at intervals along the length of the two sides of the central connector web 6b, perpendicular to the plane of the central connector web 6b. The central connector support arms 6c are provided in a direction close to the substrate outer blade 5a. The central connector web 6b and the central connector support arms 6c are fixedly or detachably connected. The ends of the central connector web 6b are provided in the spaces formed between the adjacent substrate inner blades 5 and adjacent substrate outer blades 5a, respectively. The central connector positioning bosses 6d are provided between the adjacent substrate outer blades 5a. When the central connector web 6b and the central connector support arms 6c are detachably connected, the central connector 6 can accommodate inter-plate gaps of varying widths. Different sizes of central connector support arms 6c can be used according to the size of the inter-plate gap, making installation and disassembly convenient and having a wide range of applications.

[0101] The edge connectors 4 and the center connector 6 can achieve precise positioning, have excellent shear resistance, and enhance the integrity of the wall panel.

[0102] As a preferred embodiment, an edge connector hoisting hole 4e is provided on one end of the edge connector web 4b, and a center connector hoisting hole 6b' is provided on one end of the center connector web 6b, which are used for hoisting the toughened sandwich insulation composite wall panel. During hoisting, the insulation board 2 is hollowed out to expose the edge connector hoisting hole 4e and the center connector hoisting hole 6b'. After hoisting, the gap of the insulation board 2 can be backfilled.

[0103] The central connector web 6b and central connector support arm 6c are detachably connected by a connecting member fixedly connected to the central connector web 6b. Specifically, the connecting member is a support arm tenon 6g, a connecting pin 6h, a connecting column 6m, a plain round peg 6q, or a bolt 6t.

[0104] Specifically, the embodiment of the present invention provides five solutions for detachably connecting the central connecting member web 6b and the central connecting member support arm 6c. Other detachable connection solutions are also within the protection scope of the present invention.

[0105] The first solution of the detachable connection between the central connecting member web 6b and the central connecting member support arm 6c is as follows: Figures 14 to 16 As shown, one side end portion of one of the central connecting member support arms 6c is provided with a support arm tenon 6g, and one side end portion of the other support arm 6c is provided with a support arm groove 6f corresponding to the support arm tenon 6g, and a first splicing hole 6e is provided on the central connecting member web 6b for passing the support arm 6c. After the central connecting member support arm 6c with the support arm tenon 6g passes through the first splicing hole 6e, it is connected to the other central connecting member support arm 6c slot with the support arm groove 6f.

[0106] The second solution of the detachable connection between the central connecting member web 6b and the central connecting member support arm 6c is as follows: Figures 17 to 19 As shown, a connecting pin 6h is provided on the end face of one of the center connecting member support arms 6c opposite to the center connecting member positioning boss 6d, and a connecting groove 6i is provided on the end face of the other center connecting member support arm 6c opposite to the center connecting member positioning boss 6d. A second splicing hole 6j with the same cross-sectional size as the connecting pin 6h is provided on the center connecting member web 6b for passing the connecting pin 6h. After the connecting pin 6h of one of the center connecting member support arms 6c passes through the second splicing hole 6j, it is connected to the slot of the connecting groove 6i of the other center connecting member support arm 6c. In addition, the connecting pin 6h and the connecting groove 6i can also be provided on the same end face of the center connecting member positioning boss 6d, as shown in FIG. Figure 20 shown.

[0107] The third solution of the detachable connection between the central connecting member web 6b and the central connecting member support arm 6c is as follows: Figures 21 to 23As shown, one side end of one of the center connecting member support arms 6c is provided with two connecting columns 6m, and one side end of the other center connecting member support arm 6c is provided with two card slots 6n corresponding to the connecting columns 6m, and two double-circle splicing holes 6k with the same cross-sectional size as the connecting column 6m are provided on the center connecting member web 6b for passing through the connecting column 6m, and after the connecting column 6m of one center connecting member support arm 6c passes through the double-circle splicing hole 6k, it is connected to the slot of the card slot 6n of the other center connecting member support arm 6c.

[0108] The fourth solution for the detachable connection between the central connector web 6b and the central connector support arm 6c is as follows: two double-circular splicing holes 6k are provided on the central connector web 6b, and a connecting rib is provided at the end of the central connector support arm 6c. The connecting rib has two circular holes 6r of the same size as the double-circular splicing holes 6k. After the light cylindrical nail 6q passes through the circular hole 6r of the connecting rib on one of the central connector support arms 6c, the double-circular splicing hole 6k and the circular hole 6r of the connecting rib on the other support arm, the buckle 6p is used to fix the light cylindrical nail 6q, so as to realize the buckle connection between the central connector web 6b and the central connector support arm 6c. Figure 24 and Figure 25 shown.

[0109] A fifth solution for the detachable connection between the central connector web 6b and the central connector support arm 6c is as follows: two double-circle splicing holes 6k are provided on the central connector web 6b, and a connecting rib is provided at the end of the central connector support arm 6c. The connecting rib has two threaded holes 6u of the same size as the double-circle splicing holes 6k. After the bolt 6t passes through the threaded hole 6u of the connecting rib on one of the central connector support arms 6c, the double-circle splicing hole 6k, and the threaded hole 6u of the connecting rib on the other central connector support arm 6c in sequence, the bolt 6t is fixed with a nut 6s to realize the bolt connection between the central connector web 6b and the central connector support arm 6c. Figures 26 to 28 shown.

[0110] Furthermore, the invention further comprises an inner thread sleeve 12, which is respectively disposed adjacent to the central connector flange 6a on the inner blade side of the substrate and the edge connector flange 4a on the inner blade side of the substrate. The inner thread sleeve 12 is preferably an inner thread sleeve of size M20 or above, with a length greater than 50 mm to ensure anchoring strength, a wall thickness of preferably not less than 5 mm, and is made of Q235 carbon steel. When the thickness of the inner blade plate 5 and the toughening layer 1 of the substrate meets the length requirement of the inner thread sleeve 12, the inner thread sleeve 12 is set in the space at the top of the flange 4a, specifically, the inner thread sleeve 12 can be bonded to the center connector flange 6a and the edge connector flange 4a on the inner blade plate side of the substrate; when the thickness of the inner blade plate 5 and the toughening layer 1 of the substrate does not meet the length requirement of the inner thread sleeve 12, the inner thread sleeve 12 is set on one side of the center connector flange 6a and the edge connector flange 4a on the inner blade plate side of the substrate, and a sleeve placement port 19 is provided at the end of the inner blade plate 5 of the substrate to reserve installation space for placing the inner thread sleeve 12. Preferably, as Figure 12 As shown, an anchoring boss 12 a is provided on the outer side of the inner thread sleeve 12 to strengthen the connection between the inner thread sleeve 12 and the toughening layer 1 , the protective layer 3 or the inter-plate connecting layer 7 .

[0111] Insulation board 2 is made of one of polystyrene, extruded board, graphite polystyrene, or perlite-coated vacuum insulation board. Specifically, to meet the 83% energy efficiency standard, the thickness of insulation board 2 is further limited: when polystyrene is used, its thickness must be no less than 90 mm; when extruded board is used, its thickness must be no less than 80 mm; when graphite polystyrene is used, its thickness must be no less than 75 mm; and when perlite-coated vacuum insulation board is used, its thickness must be no less than 6 mm.

[0112] As a preferred solution, fireproof insulation blocks 9 are installed on both sides of the insulation board 2 to enhance the fire resistance of the toughened sandwich insulation composite wallboard. Fireproof insulation blocks 9 are made of Class A fireproof material, such as silicone plastic board. Block grooves 9a are provided on the outer sides of the fireproof insulation blocks 9, enhancing fire resistance and achieving excellent energy conservation and environmental protection. Furthermore, the block grooves 9a increase the flow path length of water seepage through the joints between the panels, providing effective anti-seepage performance.

[0113] The toughened sandwich insulation composite wall panel of the present invention overcomes the shortcomings of the original base material board material such as poor tensile strength and easy brittle failure, and integrates the advantages of light weight, high strength, thermal insulation, waterproof and anti-seepage, high temperature resistance, sound insulation and noise reduction, and moisture resistance. The insulation board has the same lifespan as the wall, and is energy-saving and environmentally friendly. Compared with existing wall panels, if the same 83 energy-saving standard is achieved, the wall thickness of the present invention is smaller and meets the strength requirements. The present invention realizes the reliable connection of the toughening layer with the inner blade plate of the base material and the outer blade plate of the base material respectively, and the overall anti-deformation performance is good, which greatly improves the bearing capacity and rigidity of the composite wall panel. The edge connector and the center connector can achieve precise positioning, have excellent shear resistance, and enhance the integrity of the wall panel. When the center connector web and the center connector support arm are detachably connected, the center connector can meet the use of gaps between panels of different widths. Center connector support arms of different sizes can be used according to the gaps between panels. It is easy to install and disassemble and has a wide range of applications.

[0114] The embodiment of the present invention also provides a method for preparing the aforementioned toughened sandwich insulation composite wall panel. The preparation method specifically takes two base material inner blades and two base material outer blades as an example, and includes the following steps:

[0115] S1. Prefabricate the base material inner blade plate 5 and the base material outer blade plate 5a in a factory, and perform precise cutting on the base material inner blade plate 5 and the base material outer blade plate 5a according to design requirements.

[0116] S2. Position and place the side mold 10 on the mold platform 18 according to the required board size, use the mold connector 8 to fix the end of the side mold, use the limiter 11 to fix it to form a mold cavity, set the pad 17 at the position where the outer blade 5a of the substrate is placed in the mold cavity, and add the toughening layer 1 to the same height as the pad 17.

[0117] Furthermore, a toughening layer 1 is added to S2, specifically: when the toughening layer 1 is high-ductility concrete, the high-ductility concrete is poured to the height of the pad 17; when the toughening layer 1 is reinforced fine stone concrete, the longitudinal steel bars 13 and the transverse steel bars 14 are first tied and fixed in the mold cavity of the formwork 18, and the fine stone concrete is poured to the height of the pad 17; when the toughening layer 1 is cement mortar wire mesh, the wire mesh is first tied and fixed in the mold cavity of the formwork 18, and cement mortar is poured to the height of the pad 17; when the toughening layer 1 is carbon fiber cloth, phenolic resin is applied, and the longitudinal carbon fiber cloth strips 15 and the transverse carbon fiber cloth strips 16 are attached to the mold cavity of the formwork 18 according to the design specifications, and phenolic resin is applied to the surface again. The thickness of the carbon fiber cloth is consistent with the thickness of the pad 17.

[0118] S3. Place the outer blades 5a of the substrate on the toughening layer 1 formed in the mold cavity, with adjacent outer blades 5a placed at intervals, and outer blades 5a of different substrates placed at intervals, with a gap formed between the outer blades 5a of the substrate and the side mold 10.

[0119] S4 . Place the edge connector 4 in the gap between the outer blade 5 a of the substrate and the side mold 10 . The mold support arm 4 d contacts the side mold 10 to support the edge connector 4 .

[0120] The central connector 6 is placed in the space between adjacent substrate outer blades 5a. The central connector support arm 6c supports the central connector 6 in the space between different substrate outer blades 5a. The central connector positioning boss 6d is connected to the side of the substrate outer blade 5a.

[0121] S5 . Inject slurry into the gap between the outer blade 5 a of the substrate and the side mold 10 to form a protective layer 3 , and inject slurry into the space between adjacent outer blades 5 a of the substrate to form an inter-board connection layer 7 .

[0122] S6. Place the heat-insulating board 2 on the inner surface of the outer blade 5a of the base material, and cure the toughened layer 1, the protective layer 3 and the connecting layer 7 between the boards until they are solidified.

[0123] Furthermore, in step S6, it also includes: applying phenolic resin on both sides of the insulation board 2, and placing fireproof isolation blocks 9 outside the adhesive layer.

[0124] S7. Place the inner thread sleeve 12 on the space around the edge connector flange 4a and the center connector flange 6a. The inner thread sleeve 12 is bonded to the edge connector flange 4a and the center connector flange 6a respectively.

[0125] Furthermore, in step S7, the inner thread sleeve 12 is arranged at the top of the edge connector flange 4a and the center connector flange 6a; or, the inner thread sleeve 12 is arranged on the side of the edge connector flange 4a and the center connector flange 6a, and a sleeve placement opening 19 is reserved at the end of the inner blade 5 of the substrate.

[0126] S8. Place the base material inner blade 5 on the heat insulation board 2.

[0127] S9 , pouring slurry into the gap between the inner blade 5 of the base material and the side mold 10 to form a protective layer 3 , and injecting slurry into the space between adjacent inner blades 5 of the base material to form an inter-plate connecting layer 7 .

[0128] S10, adding a toughening layer 1 above the inner blade 5 of the base material, and forming a toughened sandwich thermal insulation composite wall panel after curing and solidification.

[0129] Furthermore, a toughening layer 1 is added in S10, specifically: when the toughening layer 1 is high-ductility concrete, the high-ductility concrete is pressed or poured on the upper surface of the inner blade 5 of the substrate to a specific thickness; when the toughening layer 1 is reinforced fine stone concrete, the longitudinal steel bars 13 and the transverse steel bars 14 are first tied and fixed on the upper surface of the inner blade 5 of the substrate, and the fine stone concrete is poured to a specific thickness; when the toughening layer 1 is cement mortar wire mesh, the wire mesh is first tied and fixed on the upper surface of the inner blade 5 of the substrate, and cement mortar is poured to a specific thickness; when the toughening layer 1 is carbon fiber cloth, phenolic resin is applied, and longitudinal carbon fiber cloth strips 15 and transverse carbon fiber cloth strips 16 are attached to the upper surface of the inner blade 5 of the substrate according to the design specifications, and phenolic resin is applied to the surface again.

[0130] The toughened sandwich insulation composite wall panel of the present invention is manufactured using a flat mold, which is in line with industrial development, enables industrialized production, and has a high degree of tooling. Furthermore, the provision of an internal threaded sleeve facilitates the connection between the toughened sandwich insulation composite wall panel and the wall structure, saving construction and labor costs and achieving good economic efficiency.

[0131] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A toughened sandwich thermal insulation composite wall panel, characterized in that: The heat preservation plate comprises at least two base material inner blades (5) and base material outer blades (5a) corresponding to the base material inner blades (5), a heat preservation plate (2) is provided between the base material inner blades (5) and the base material outer blades (5a), edge connectors (4) are provided at both ends of the heat preservation plate, and at least one center connector (6) is provided in the middle of the heat preservation plate (2); The adjacent inner blades (5) of the substrate and the adjacent outer blades (5a) of the substrate are spaced apart. A toughening layer (1) is provided on the outer surfaces of the base material inner blade (5) and the base material outer blade (5a); Protective layers (3) are respectively provided at both transverse ends of the insulation board (2); The edge connector (4) is provided with an edge connector web (4b) and edge connector flanges (4a) located on both sides of the edge connector web (4b); edge connector support arms (4c) perpendicular to the plane of the edge connector web (4b) are arranged at intervals on the inner side surface of the edge connector web (4b); an edge connector positioning boss (4c') is arranged at the end of the edge connector support arm (4c); the edge connector positioning boss (4c' is used for positioning the edge connector (4) and the outer blade of the substrate; mold support arms (4d) perpendicular to the plane of the edge connector web (4b) are arranged at intervals on the outer side surface of the edge connector web (4b); The central connector (6) is provided with a central connector web (6b) and central connector flanges (6a) located on both sides of the central connector web (6b), and central connector support arms (6c) perpendicular to the plane of the central connector web (6b) are provided at intervals in the length direction of the two side surfaces of the central connector web (6b), the central connector support arms (6c) are arranged in a direction close to the substrate outer blade (5a), the central connector web (6b) and the central connector support arms (6c) are fixedly or detachably connected, the two ends of the central connector web (6b) are arranged in the spaces respectively formed between adjacent substrate inner blades (5) and adjacent substrate outer blades (5a), and the central connector positioning boss (6d) is arranged between adjacent substrate outer blades (5a); The spaces formed between adjacent base material inner blades (5) and adjacent base material outer blades (5a) are filled with an inter-plate connecting layer (7) for anchoring the central connecting piece (6).

2. The toughened thermal insulation sandwich composite wallboard according to claim 1, characterized in that: The detachable connection method of the central connector web (6b) and the central connector support arm (6c) is as follows: one central connector support arm (6c) and another central connector support arm (6c) are fixedly connected to the central connector web (6b) via a connecting component.

3. The toughened thermal insulation sandwich composite wallboard according to claim 2, characterized in that: The connecting component is a supporting arm tenon (6g) or a connecting pin (6h) or a connecting column (6m) or a smooth round peg (6q) or a bolt (6t).

4. The toughened thermal insulation sandwich composite wallboard according to claim 1, characterized in that: An edge connector hoisting hole (6e) is provided on one end of the edge connector web (4b), and a center connector hoisting hole (6b') is provided on one end of the center connector web (6b).

5. The toughened thermal insulation sandwich composite wallboard according to claim 1, characterized in that: It also includes an inner thread sleeve (12), which is respectively arranged close to the central connecting piece flange (6a) on the inner blade side of the base material and the edge connecting piece flange (4a) on the inner blade side of the base material.

6. The toughened thermal insulation sandwich composite wallboard according to claim 5, characterized in that: The inner thread sleeve (12) is arranged on one side of the edge connector flange (4a) and the center connector flange (6a), and a sleeve placement opening (19) is arranged at the end of the inner blade (5) of the base material.

7. The toughened thermal insulation sandwich composite wallboard according to claim 5, characterized in that: The inner thread sleeve (12) is arranged in the space between the top ends of the edge connector flange (4a) and the center connector flange (6a).

8. The toughened thermal insulation sandwich composite wallboard according to claim 5, characterized in that: An anchoring boss (12a) is provided on the outer side of the inner thread sleeve (12).

9. The toughened thermal insulation sandwich composite wall panel according to claim 1, characterized in that: The length of the base material inner blade (5) and the base material outer blade (5a) is 3.0m to 4.2m, the width is 600mm to 3m, with 300mm as the size module, and the thickness is not less than 70mm.

10. The toughened thermal insulation sandwich composite wall panel according to claim 1, characterized in that: The base material inner blade plate (5) and the base material outer blade plate (5a) are foamed ceramic plates or autoclaved aerated concrete plates; The compressive strength of foamed ceramic panels shall not be less than 7MPa, and the compressive strength of autoclaved aerated concrete panels shall not be less than 2.5MPa.

11. The toughened thermal insulation sandwich composite wallboard according to claim 1, characterized in that: The toughening layer (1) is made of one of the following materials: high-ductility concrete, reinforced fine stone concrete, cement mortar steel wire mesh, and carbon fiber cloth.

12. The toughened thermal insulation sandwich composite wall panel according to claim 11, characterized in that: When the material used for the toughening layer (1) is high ductility concrete or cement mortar steel mesh, the thickness shall not be less than 15 mm; When the material used for the toughening layer (1) is reinforced fine stone concrete, its thickness shall not be less than 50 mm; When the material used for the toughening layer (1) is carbon fiber cloth, the structural adhesive is epoxy resin, the carbon fiber cloth includes longitudinal carbon fiber cloth strips (15) and transverse carbon fiber cloth strips (16), the thickness of the carbon fiber cloth is not less than 0.15mm, and the unit area mass is not less than 200g / m 2 .

13. The toughened thermal insulation sandwich composite wall panel according to claim 1, characterized in that: The heat-insulating board (2) is made of a material selected from the group consisting of polystyrene board, extruded board, graphite polystyrene, and perlite-wrapped vacuum insulation board.

14. The toughened thermal insulation sandwich composite wall panel according to claim 13, characterized in that: When the insulation board (2) is a polystyrene board, its thickness is not less than 90 mm; When the insulation board (2) is an extruded board, its thickness is not less than 80 mm; When the insulation board (2) is graphite polystyrene, its thickness is not less than 75 mm; When the insulation board (2) is a perlite-wrapped vacuum insulation board, its thickness should be no less than 6 mm.

15. The toughened thermal insulation sandwich composite wall panel according to claim 1, characterized in that: Fireproof isolation blocks (9) are provided on both sides of the thermal insulation board (2).

16. The toughened thermal insulation sandwich composite wall panel according to claim 15, characterized in that: The outer side surface of the fireproof isolation block (9) is provided with a block groove (9a).

17. A method for preparing the toughened thermal insulation sandwich composite wallboard according to any one of claims 1 to 16, characterized in that: The following steps are involved: S1. Prefabricate the inner blade plate (5) and the outer blade plate (5a) of the substrate in a factory, and perform precise cutting on the inner blade plate (5) and the outer blade plate (5a) of the substrate according to design requirements; S2. Position and place the side mold (10) on the mold platform (18) according to the required plate size, and use the limiter (11) to fix it to form a mold cavity, set a pad (17) at the position where the outer blade (5a) of the substrate is placed in the mold cavity, and add the toughening layer (1) to the same height as the pad (17); S3, placing the substrate outer blade (5a) on the toughening layer (1) formed in the mold cavity, placing adjacent substrate outer blades (5a) at intervals, placing different substrate outer blades (5a) at intervals, and forming a gap between the substrate outer blade (5a) and the side mold (10); S4, placing the edge connector (4) in the gap between the substrate outer blade (5a) and the side mold (10), with the mold support arm (4d) in contact with the side mold (10) to support the edge connector (4); The central connecting member (6) is placed in the space between adjacent substrate outer blades (5a), the central connecting member support arm (6c) supports the central connecting member (6) in the space between different substrate outer blades (5a), and the central connecting member positioning boss (6d) is connected to the side of the substrate outer blade (5a); S5, injecting slurry into the gap between the outer blade of the substrate (5a) and the side mold (10) to form a protective layer (3), and injecting slurry into the space between adjacent outer blades of the substrate (5a) to form an inter-plate connecting layer (7); S6, placing a heat-insulating plate (2) on the inner surface of the outer blade (5a) of the base material, and curing the toughening layer (1), the protective layer (3) and the inter-plate connecting layer (7) until they are solidified; S7, placing an inner thread sleeve (12) on the space around the edge connector flange (4a) and the center connector flange (6a), and bonding the inner thread sleeve (12) to the edge connector flange (4a) and the center connector flange (6a) respectively; S8, placing the base material inner blade (5) on the insulation board (2); S9, pouring slurry into the gap between the inner blade (5) of the substrate and the side mold (10) to form a protective layer (3), and injecting slurry into the space between the inner blades (5) of adjacent substrates to form an inter-plate connecting layer (7); S10, adding a toughening layer (1) above the inner blade (5) of the base material, and forming a toughened sandwich thermal insulation composite wall panel after curing and solidification.

18. A method for preparing the toughened thermal insulation sandwich composite wallboard according to claim 17, characterized in that: A toughening layer (1) is added to S2, specifically: When the toughening layer (1) is high-ductility concrete, the high-ductility concrete is poured to a height equal to that of the pad (17); When the toughening layer (1) is reinforced fine stone concrete, firstly, the longitudinal steel bars (13) and the transverse steel bars (14) are tied and fixed in the mold cavity of the mold platform (18), and the fine stone concrete is poured to the height of the pad (17); When the toughening layer (1) is a cement mortar steel mesh, the steel mesh is first tied and fixed in the mold cavity of the mold platform (18), and the cement mortar is poured to the height of the pad (17); When the toughening layer (1) is a carbon fiber cloth, phenolic resin is applied, and longitudinal carbon fiber cloth strips (15) and transverse carbon fiber cloth strips (16) are attached to the mold cavity of the mold platform (18) according to the design specifications, and phenolic resin is applied to the surface again. The thickness of the carbon fiber cloth is consistent with the thickness of the pad (17).

19. A method for preparing the toughened thermal insulation sandwich composite wallboard according to claim 17, characterized in that: A toughening layer (1) is added in S10, specifically: When the toughening layer (1) is high-ductility concrete, the high-ductility concrete is pressed or poured on the upper surface of the inner blade (5) of the base material to a specific thickness; When the toughening layer (1) is reinforced fine stone concrete, firstly, the longitudinal steel bars (13) and the transverse steel bars (14) are tied and fixed on the upper surface of the inner blade (5) of the substrate, and the fine stone concrete is poured to a specific thickness; When the toughening layer (1) is a cement mortar steel mesh, the steel mesh is first tied and fixed to the upper surface of the inner blade (5) of the substrate, and the cement mortar is poured to a specific thickness; When the toughening layer (1) is carbon fiber cloth, phenolic resin is applied, and longitudinal carbon fiber cloth strips (15) and transverse carbon fiber cloth strips (16) are attached to the upper surface of the inner blade (5) of the substrate according to the design specifications, and phenolic resin is applied to the surface again.

20. A method for preparing the toughened sandwich thermal insulation composite wallboard according to claim 17, characterized in that: In step S6, it also includes: applying phenolic resin on both sides of the insulation board (2) to form a fireproof isolation block (9) outside the adhesive layer.

21. A method for preparing the toughened thermal insulation sandwich composite wallboard according to claim 17, characterized in that: In step S7, the inner thread sleeve (12) is set on the top of the edge connector flange (4a) and the center connector flange (6a).

22. A method for preparing the toughened thermal insulation sandwich composite wallboard according to claim 17, characterized in that: In step S7, the inner thread sleeve (12) is arranged on the side of the edge connector flange (4a) and the center connector flange (6a), and a sleeve placement opening (19) is reserved at the end of the inner blade (5) of the base material.

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