Fracture-resistant thermal insulation wallboard

Abstract

The invention discloses a fracture-resistant thermal insulation wallboard which comprises an outer wallboard, a thermal insulation layer, a concrete layer, steel wire meshes and bolt bars, a plurality of bolt mounting holes are formed in the outer wallboard, a gap is reserved between the outer wallboard and the thermal insulation layer, a pouring layer is formed in the gap in a pouring mode, and the steel wire meshes comprise the first steel wire mesh and the second steel wire mesh. The first steel wire mesh is located in the pouring layer, the bolt rods penetrate through the bolt mounting holes, then sequentially penetrate through the first steel wire mesh in the pouring layer and the heat preservation layer, then stretch into the concrete layer and are connected with the second steel wire mesh, the tail portions of the bolt rods stretch into the concrete layer to be bent to form hooks, and the hooks are connected with the second steel wire mesh in a clamped mode. The thermal insulation wallboard is high in internal structural strength, not prone to deformation during use, good in flatness and high in breaking strength, the fixing performance of the bolt rods is higher, the fastening effect on the thermal insulation layer is better, and good flame retardant performance is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of building wall panels, and in particular to a fold-resistant thermal insulation wall panel. Background Art

[0002] There are many kinds of exterior wall insulation. Traditional exterior wall insulation is made of polymer mortar, glass fiber mesh cloth, flame retardant molded polystyrene foam board (EPS) or extruded board (XPS) and other materials, and is bonded on site. The new thermal insulation decorative integrated board is produced through an assembly line, integrating insulation, waterproofing, and finishing functions. It is the preferred material to meet the current energy-saving needs of housing construction and improve the insulation level of industrial and civil buildings. It is also the preferred material for energy-saving renovation of existing buildings.

[0003] The existing thermal insulation wall panels include an outer wall panel, an insulation layer, and a concrete layer. A steel wire mesh is arranged in the concrete layer, and a bolt rod passes through the outer wall panel and the insulation layer and is welded to the steel wire mesh. Because the outer wall panel and the insulation layer are welded and fixed to the internal steel wire mesh by the bolt rod, the outer wall panel is more secure and less likely to fall off than the previous adhesive fixation. However, it is found in use that the thermal insulation wall panel still has the following shortcomings: 1. The bolts are welded to the steel wire mesh. Due to the welding effect, the welding point has weak ability to resist plastic deformation, especially poor shear resistance, and it is easy to have unqualified welding points. In addition, the steel wire mesh is easily damaged by vibration during transportation and installation, causing the failure of the welding point, thereby affecting the overall performance of the steel wire mesh. The overall structure of the steel wire mesh is destroyed, the firmness of the steel wire mesh is reduced, and the overall load-bearing capacity, folding resistance, and seismic resistance of the wall panel are affected to varying degrees. 2. The thickness of the exterior wall panels is too thin to protect the insulation layer. When a fire occurs, the high temperature outside will quickly penetrate the exterior wall panels and then transfer to the insulation layer, causing the insulation layer to burn or melt, causing the fire to further expand. In addition, the thickness of the exterior wall panels is very thin. After a long period of erosion by the external environment, it is very easy to form transparent cracks, causing rainwater and other moisture to enter through the cracks, causing the exterior wall panels and the insulation layer to separate and fall off. 3. The strength of the internal structure of the insulation wall panels is not high. When in use, the wall panels will bend and deform due to external forces, causing the flatness of the insulation wall panels to decrease. Furthermore, when bearing a certain amount of weight, the insulation wall panels will break. Summary of the invention

[0004] The purpose of the present invention is to provide a flexural-resistant thermal insulation wall panel, which has high internal structural strength, is not easy to deform during use, has good flatness, high flexural strength, and has stronger fixation of the bolt rod, better fastening effect on the insulation layer, and has good flame retardant properties.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A fold-resistant thermal insulation wall panel comprises an exterior wall panel, an insulation layer, a concrete layer, a steel mesh and a bolt rod. A plurality of bolt mounting holes are provided on the exterior wall panel. A gap is left between the exterior wall panel and the insulation layer. A casting layer is formed by pouring in the gap. The steel mesh comprises a first steel mesh and a second steel mesh. The first steel mesh is located in the casting layer, and the second steel mesh is located in the concrete layer. The exterior wall panel, the casting layer, the insulation layer and the concrete layer are arranged in sequence from left to right. After passing through the bolt mounting hole, the bolt rod passes through the first steel mesh and the insulation layer in the casting layer in sequence, and then extends into the concrete layer and is connected with the second steel mesh. After the bolt rod extends into the concrete layer, the tail portion is bent to form a hook, and the hook is clamped with the second steel mesh.

[0007] Preferably, a bracket is provided in the casting layer, the bracket is in the shape of a spool, and an opening is provided on the bracket; the bracket is sleeved on the bolt rod and supported between the exterior wall panel and the insulation layer.

[0008] Preferably, the portion of the bolt rod located within the insulation layer is sleeved with a water-proof support tube, the bolt rod is penetrated by an insulation pressure cover, the insulation pressure cover is fastened by a nut, and the water-proof support tube is supported between the insulation layer and the insulation pressure cover.

[0009] Preferably, the bracket is a plastic bracket, the water-proof support pipe is a plastic pipe, and the inner wall of the water-proof support pipe is tightly connected to the bolt rod.

[0010] Preferably, the bolt mounting hole is a countersunk hole.

[0011] Preferably, it also includes an inner wall panel, and the inner wall panel is fixedly connected to the concrete layer.

[0012] Preferably, the casting layer and the concrete layer are lightweight aggregate concrete layers; the exterior wall panel is a calcium silicate board, a cement board or a silicon magnesium board; and the insulation layer is an extruded board layer, a graphite benzene board layer, a polystyrene board layer or a polyurethane board layer.

[0013] Preferably, the water-proof support tube is a circular tube with a diameter not less than 15 mm.

[0014] Preferably, the concrete layer is bonded to the insulation layer and the inner wall panels respectively, and mortise and tenon grooves and mortise and tenon protrusions are provided at both ends of the concrete layer, and two insulation wall panels can be spliced ​​through the mortise and tenon grooves and mortise and tenon protrusions.

[0015] In the above technical solution, the bracket is sleeved on the bolt rod and supported between the insulation layer and the exterior wall panel to form a gap between the insulation layer and the exterior wall panel, and a casting layer is directly cast in the gap. By arranging a first steel wire mesh in the casting layer, the first steel wire mesh is welded to the bolt rod (or the first bolt rod only passes through the first steel wire mesh without being welded to it), thereby avoiding the small contact area between the casting layer and the bolt rod causing the bolt rod to fall off and the casting layer to be damaged. In addition, the first steel wire mesh supports the casting layer, thereby increasing the flexural strength of the casting layer, that is, increasing the flexural strength of the insulation wall panel. When the flexural strength is enhanced, the risk of bending and deformation of the material due to external force will be reduced during use. After the construction is completed, the insulation wall panel can be made smoother and the seismic resistance of the insulation wall panel is increased. By pouring, the gap between the exterior wall panel and the insulation layer can be better filled, making the insulation layer and the exterior wall panel more firmly bonded; at the same time, the pouring layer increases the distance between the insulation layer and the outside world, that is, the pouring layer increases the thickness of the exterior wall panel. When a fire occurs, the pouring layer and the exterior wall panel work together to extend the distance of the external high temperature to the insulation layer, and prevent the insulation layer from melting after being baked at high temperature, that is, the pouring layer also has a certain flame retardant effect. At the same time, the pouring layer can be used as the supplementary thickness of the exterior wall panel and bonded together with the exterior wall panel, which can enhance the overall strength of the exterior wall panel, make the exterior wall panel less likely to crack, and extend the service life of the exterior wall panel.

[0016] The exterior wall panels, insulation layer and concrete layer are connected together by bolt rods, and the tail of the bolt rod is bent to form a hook, and the wire mesh is clamped on the hook. The operation is simple, and the hook will not damage the structure of the wire mesh, nor will it affect its bearing capacity. At the same time, the hook clamped on the wire mesh can also prevent the bolt rod from moving outward, avoid delamination and damage to the wall panel, and enhance its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic cross-sectional view of the structure of the anti-bending thermal insulation wall panel;

[0018] Figure 2 It is a schematic diagram of the support structure of the anti-bend type thermal insulation wall panel.

[0019] In the figure, 1 is an exterior wall panel; 11 is a bolt installation hole; 2 is a bolt rod; 3 is a casting layer; 31 is a bracket; 31 is a center hole; 312 is a baffle; 32 is a first steel mesh; 4 is a thermal insulation layer; 41 is a thermal insulation layer gland; 42 is a waterproof support pipe; 5 is a concrete layer; 51 is a second steel mesh; 6 is an interior wall panel; 7 is a mortise and tenon groove; 8 is a mortise and tenon protrusion. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings:

[0021] like Figure 1 to Figure 2As shown, the anti-bending thermal insulation wall panel includes an exterior wall panel 1, an insulation layer 4, a concrete layer 5, a steel mesh and a bolt rod 2, wherein the steel mesh includes a first steel mesh 32 and a second steel mesh 51, a bracket 31 is provided between the exterior wall panel 1 and the insulation layer 4, and baffles 312 at both ends of the bracket 31 are respectively pressed against the exterior wall panel 1 and the insulation layer 4, so that a gap is formed between the exterior wall panel 1 and the insulation layer 4, and a casting layer 3 is cast in the gap to form a casting layer 3, in which a first steel mesh 32 is provided. A plurality of bolt mounting holes 11 are provided on the exterior wall panel 1. The bolt mounting holes 11 are countersunk holes. The tail of the bolt rod 2 passes through the bolt mounting hole 11 and the head of the bolt rod 2 remains in the bolt mounting hole 11. Then, the bracket 31 is sleeved on the bolt rod 2 through the center hole 311, and the tail of the bolt rod 2 continues to pass through the casting layer 3 and is welded to the first steel wire mesh 32 (it can also only pass through the first steel wire mesh 32 without welding to it), and then extends through the insulation layer 4 and then extends into the concrete layer 5 and is welded to the second steel wire mesh 51. The first steel wire mesh 32 and the second steel wire mesh 51 fix the bolt rod 2 inside the insulation wall panel to prevent the bolt rod 2 from being detached due to the small contact area between the casting layer 3 and the bolt rod 2, thereby causing the casting layer 3 or the exterior wall panel 1 to fall off, and the first steel wire mesh 32 is arranged in the casting layer 3 to increase its flexural strength, that is, to increase the flexural strength of the insulation wall panel. The enhanced flexural strength will reduce the risk of bending and deformation of the material due to external force during use, and the insulation wall panel can be made smoother after the construction is completed.

[0022] The concrete layer 5 is the main structure of the thermal insulation wallboard, and plays the main supporting, reinforcing, anti-bending and other roles. Preferably, the concrete layer 5 is made of thermal insulation and environmentally friendly lightweight aggregate concrete. Mortise and tenon grooves 7 and mortise and tenon protrusions 8 are provided at both ends of the concrete layer 5, and different thermal insulation wallboards can be spliced ​​through the mortise and tenon grooves 7 and the mortise and tenon protrusions 8.

[0023] In this embodiment, the pouring layer 3 is preferably lightweight aggregate concrete, and the thickness is preferably 40mm. The pouring layer 3 connects the exterior wall panel 1 and the insulation layer 4. Through the later pouring method, the gap between the exterior wall panel 1 and the insulation layer 4 can be better filled, so that the adhesion between the exterior wall panel 1 and the insulation layer 4 is more firm. At the same time, the pouring layer 3 is bonded to the exterior wall panel 1 as a supplement to the thickness of the exterior wall panel 1, which can not only enhance the strength of the exterior wall panel 1 and make it less likely for the exterior wall panel 1 to crack, but also prevent the external high temperature from being conducted inward in case of fire, and avoid the insulation layer 4 from melting due to heat and losing its insulation function. The insulation layer 4 can be an extruded board, a graphite benzene board, a polystyrene board or a polyurethane board, etc., generally a foam insulation layer. The exterior wall panel 1 generally uses a calcium silicate board, a cement board or a silicon magnesium board, etc. The exterior wall panel 1 has the protective functions of no need to brush mortar, impact resistance, flame retardancy, etc., and can withstand gravity during transportation.

[0024] In a preferred embodiment, the tail end of the bolt rod 2 extends through the insulation layer 4 and then penetrates into the concrete layer 5 and is bent to form a hook, and the second steel wire mesh 51 is clamped on the hook. The operation is simple, and the hook will not damage the structure of the second steel wire mesh 51, nor will it affect its bearing capacity. At the same time, the hook clamped on the second steel wire mesh 51 can also prevent the bolt rod 2 from moving outward, avoid causing delamination and damage to the wall panel, and enhance its service life.

[0025] In a preferred embodiment, a waterproof support tube 42 is sleeved on the portion of the bolt rod 2 located in the thermal insulation layer 4. When water vapor condenses on the thermal insulation layer 4, it will condense on the outside of the waterproof support tube 42 and will not adhere to the bolt rod 2. This prevents the contact between water vapor and the bolt rod 2, and can effectively prevent the bolt rod 2 from being corroded by water, thus avoiding the possibility of fracture after deep corrosion. Therefore, the waterproof support tube 42 needs to be impermeable and stable when in contact with water. At the same time, the bracket 31 and the waterproof support tube 42 work together to support the outer wall panel 1 and the insulation cover 41. Specifically, after the bolt rod 2 passes through the insulation layer 4, the insulation layer cover 41 is passed through the bolt rod 2, and then the insulation layer cover 41 is tightened with a nut and attached to one end of the waterproof support tube 42 (the other end of the waterproof support tube 42 is against the bracket 31). In this way, the distance between the outer wall panel 1 and the insulation layer cover 41 is determined by the waterproof support tube 42 and the bracket 31. Since the bracket 31 and the waterproof support tube 42 jointly support the outer wall panel 1 and the casting layer 3, the outer wall panel 1 and the casting layer 3 will not squeeze the insulation layer 4, thereby effectively avoiding the situation in which the insulation layer 4 is squeezed by wind in the past.

[0026] In this embodiment, from the perspective of waterproofing and supporting, the waterproof support tube 42 and the bracket 31 can preferably be made of plastic material, which is both waterproof and has a certain supporting strength. In particular, the plastic tube can be a harder plastic tube, but it can also be a plastic tube with a certain degree of softness. In one embodiment, the plastic tube is tightly sleeved outside the bolt, so that even a slightly soft plastic tube has sufficient supporting force to prevent the gasket from approaching the exterior wall panel 1 due to its close contact with the bolt. The insulation layer cover 41 is a plastic insulation layer cover. The plastic insulation layer cover can be circular, and the diameter is generally not less than 15 mm.

[0027] As an embodiment, an inner wall panel 6 may be bonded to one side of the concrete layer 5 to further enhance the practicability of the device.

[0028] This embodiment is only an illustration of the concept and implementation of the present invention, and does not limit it. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. A fold-resistant thermal insulation wall panel, comprising an outer wall panel, an insulation layer, a concrete layer, a steel mesh sheet and a bolt rod, wherein a plurality of bolt mounting holes are provided on the outer wall panel, characterized in that: A gap is left between the exterior wall panel and the insulation layer, and a casting layer is cast in the gap. The wire mesh includes a first wire mesh and a second wire mesh. The first wire mesh is located in the casting layer, and the second wire mesh is located in the concrete layer. The exterior wall panel, casting layer, insulation layer and concrete layer are arranged in sequence from left to right. After passing through the bolt installation hole, the bolt rod passes through the first wire mesh and the insulation layer in the casting layer in sequence, and then extends into the concrete layer and is connected with the second wire mesh. After the bolt rod extends into the concrete layer, the tail portion is bent to form a hook, and the hook is clamped with the second wire mesh.

2. The anti-bending thermal insulation wallboard according to claim 1, characterized in that: A bracket is arranged in the casting layer, the bracket is in the shape of a spool and is provided with an opening; the bracket is sleeved on the bolt rod and supported between the exterior wall panel and the insulation layer.

3. The anti-bending thermal insulation wallboard according to claim 2, characterized in that: The portion of the bolt rod located in the insulation layer is sleeved with a water-proof support tube, the bolt rod is penetrated by a heat-insulating pressure cover, the heat-insulating pressure cover is fastened by a nut, and the water-proof support tube is supported between the heat-insulating layer and the heat-insulating pressure cover.

4. The anti-bending thermal insulation wallboard according to claim 3, characterized in that: The bracket is a plastic bracket, the waterproof support pipe is a plastic pipe, and the inner wall of the waterproof support pipe is tightly connected to the bolt rod.

5. The anti-bending thermal insulation wallboard according to any one of claims 1 to 4, characterized in that: The bolt mounting hole is a countersunk hole.

6. The anti-bending thermal insulation wallboard according to any one of claims 1 to 4, characterized in that: It also includes an inner wall panel, which is fixedly connected to the concrete layer.

7. The anti-bending thermal insulation wallboard according to claim 6, characterized in that: The casting layer and the concrete layer are lightweight aggregate concrete layers; the exterior wall panel is a calcium silicate board, a cement board or a silicon magnesium board; the insulation layer is an extruded board layer, a graphite benzene board layer, a polystyrene board layer or a polyurethane board layer.

8. The anti-bending thermal insulation wallboard according to claim 4, characterized in that: The water-proof support pipe is a circular pipe with a diameter not less than 15 mm.

9. The anti-bending thermal insulation wallboard according to claim 7, characterized in that: The concrete layer is bonded to the insulation layer and the inner wall panel respectively, and mortise and tenon grooves and mortise and tenon protrusions are provided at both ends of the concrete layer, and two insulation wall panels can be spliced ​​through the mortise and tenon grooves and mortise and tenon protrusions.

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