Durable thermal insulation wallboard

Abstract

The utility model discloses a durable thermal insulation wallboard, which relates to the technical field of wallboards for buildings and comprises an outer wallboard, a thermal insulation layer, a concrete layer, a steel wire mesh and bolt bars, the outer wallboard, the thermal insulation layer and the concrete layer are sequentially arranged from left to right, the steel wire mesh is positioned in the concrete layer, and a plurality of bolt mounting holes are arranged on the outer wallboard. The tail portion of the bolt rod is bent to form a hook after the bolt rod penetrates through the bolt installation hole and the heat preservation layer, and the steel wire mesh is clamped on the hook. The thermal insulation wallboard is good in bearing capacity, high in fracture resistance, good in fastening effect on the thermal insulation layer, not prone to shaking and falling off and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of building wall panels, in particular to a durable thermal insulation wall panel. Background Art

[0002] During the construction process, the current energy-saving and emission-reduction methods for exterior wall insulation buildings are mainly: (1) A cast-in-place system with mesh polystyrene boards built into the large formwork, that is, before pouring concrete, a mesh polystyrene board is placed on the side wall of the formwork and poured into one with the concrete. This system has a high insulation layer safety, but there are defects such as a thick outer plaster layer that is prone to cracking. Especially when pasting tiles on the exterior wall, the decorative layer is too heavy, which can easily cause the insulation layer to slowly deform, causing the decorative tiles on the decorative layer to fall off and injure people. (2) After the exterior wall is painted, the insulation board is glued to the wall with bonding mortar, covered with alkali-resistant mesh cloth and then coated with anti-cracking mortar; this method is prone to form through cracks at the joints of the insulation board due to the slow shrinkage and deformation of the insulation board, which will directly affect the bonding effect between the insulation board and the wall after being eroded by rainwater, causing the insulation board to fall off.

[0003] In order to solve the above problems, utility model patent CN 215716533 U discloses a self-insulating wall panel, including an outer wall panel, an insulation layer, a concrete layer, a steel mesh sheet inside the concrete layer, and bolts passing through the outer wall panel and the insulation layer and then welded to the steel mesh sheet. Because the outer wall panel and the insulation layer are welded to the inner steel mesh sheet by bolts, the outer wall panel is more secure and less likely to fall off than the conventional adhesive fixation. However, it was found during use that the thermal insulation wall panels still have the following deficiencies: 1. There is a temperature difference between the inside and outside of the building during use. When the internal water vapor escapes, it will condense into water droplets on the insulation layer and eventually gather on the bolts, causing the bolts to corrode. Long-term corrosion will cause the bolts to break and lose their supporting and tightening function. In this way, the exterior wall panels will still fall off, making the service life of the wall panels inconsistent with the service life of the building body; 2. Since the insulation layer is generally supported by materials such as polystyrene foam and has a soft texture, the exterior wall panels will be squeezed inward or stretched outward under the action of wind. At this time, the foam will be compressed and react with the nut on the bolt, causing the nut to enter the foam, thereby losing the tightening effect, causing the exterior wall panels to swing more significantly inward and outward and eventually fall off. The above disadvantages are particularly obvious in areas with large temperature differences between cold and warm and windy areas. 3. Bolts are welded to wire mesh. Due to the welding effect, the welding point has a weak ability to resist plastic deformation, especially poor shear resistance, and it is easy for welding points to fail. In addition, the wire mesh is easily damaged by vibration during transportation and installation, which causes failure of welding points, thus affecting the overall performance of the wire mesh. The overall structure of the wire mesh is destroyed, the firmness of the wire mesh is reduced, and the overall load-bearing capacity, flexural resistance, and earthquake resistance of the wall panel are affected to varying degrees. Utility Model Content

[0004] The utility model aims to provide a durable thermal insulation wall panel, which has good load-bearing property and strong bending resistance, good fastening effect on the thermal insulation layer, is not easy to shake and fall off, and has a long service life.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A durable thermal insulation wall panel comprises an exterior wall panel, an insulation layer, a concrete layer, a wire mesh and a bolt rod. The exterior wall panel, the insulation layer and the concrete layer are arranged in sequence from left to right. The wire mesh is located in the concrete layer. A plurality of bolt mounting holes are provided on the exterior wall panel. The bolt rod passes through the bolt mounting holes and the insulation layer and is bent at the rear end to form a hook. The wire mesh is clamped on the hook.

[0007] 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.

[0008] Preferably, the water-proof support pipe is a plastic pipe and the inner wall of the plastic pipe is in contact with the bolt rod.

[0009] Preferably, the bolt mounting hole is a countersunk hole.

[0010] Preferably, it further comprises an inner wall panel, wherein the inner wall panel is connected to the concrete layer.

[0011] Preferably, it also includes a mortar bonding layer, and the mortar bonding layer is arranged between the exterior wall panel and the thermal insulation layer.

[0012] Preferably, the concrete layer is a lightweight aggregate concrete layer.

[0013] Preferably, the exterior wall panel is a calcium silicate board, a cement board or a silicon magnesium board, and the thermal insulation layer is an extruded board layer, a graphite benzene board layer, a polystyrene board layer or a polyurethane board layer.

[0014] Preferably, the thermal insulation gland is a plastic thermal insulation gland, which is circular and has a diameter of not less than 15 mm.

[0015] Preferably, the concrete layer is bonded to the insulation layer, 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.

[0016] In the above technical solution, the exterior wall panel, the insulation layer and the 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. The hook clamped on the wire mesh can also prevent the bolt rod from moving outward, avoid delamination and damage to the insulation wall panel, and enhance its service life.

[0017] A waterproof support tube is used to cover the outer surface of the bolt rod in the insulation layer, so that water vapor will condense onto the waterproof support tube made of plastic or other materials when condensing, instead of being attached to the iron bolt rod, thereby effectively preventing the bolt rod from corroding when it encounters water. In addition, the waterproof support tube also has a supporting function. The waterproof support tube is set on the bolt rod, that is, the waterproof support tube is supported between the outer wall panel and the insulation gland and nut. When the outer wall panel is squeezed by wind, the waterproof support tube supports the outer wall panel without squeezing the foam layer, thereby preventing the insulation layer from being compressed and preventing the insulation gland and nut from entering the foam of the insulation layer. At the same time, by setting the insulation gland, the position of the bolt rod is fixed to prevent the bolt rod from moving, and the force-bearing area is increased, further preventing the insulation gland and nut from entering the foam of the insulation layer. In this way, the fixation of the insulation layer is safer and more reliable, avoiding the consequences of shaking inside and outside under the action of wind and eventually falling off. Since the area of ​​the bolt rod is small, and the exterior wall panel is connected to the insulation layer by the bolt rod, the connectivity is poor. By providing a mortar bonding layer between the exterior wall panel and the insulation layer, it is prevented that the exterior wall panel and the insulation layer are separated due to similar point contact, thereby further making the insulation wall panel more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structural cross-section of the durable thermal insulation wall panel.

[0019] In the figure, 1 is an exterior wall panel; 2 is a bolt rod; 21 is a bolt mounting hole; 22 is a waterproof support pipe; 23 is an insulation gland; 3 is an insulation layer; 4 is a mortar bonding layer; 5 is a concrete layer; 6 is a steel wire mesh; 7 is an interior wall panel; 8 is a mortise and tenon groove; and 9 is a mortise and tenon protrusion. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] like Figure 1As shown, the durable thermal insulation wall panel includes an exterior wall panel 1. The exterior wall panel 1 is generally made of calcium silicate board, cement board or magnesium silicate board, etc. The exterior wall panel 1 has the functions of no need to brush mortar, impact resistance, flame retardancy and other protective functions, and can withstand gravity during transportation. A plurality of bolt mounting holes 21 are provided on the exterior wall panel 1. The bolt mounting holes 21 are countersunk holes. The tail of the bolt rod 2 passes through the bolt mounting hole 21 and the head of the bolt rod 2 remains in the bolt mounting hole 21. The tail of the bolt rod 2 passes through the thermal insulation layer 3 and then bends to form a hook, and extends into the concrete layer 5 to be clamped with the steel wire mesh 6. The operation is simple, and the hook will not damage the structure of the steel wire mesh 6, and will not affect its bearing capacity. The hook clamped on the steel wire mesh 6 can also prevent the bolt rod 2 from moving outward, avoid causing the thermal insulation wall panel to be delaminated and fall off and damaged, and enhance its service life. The thermal insulation layer 3 can be an extruded board, a graphite benzene board, a polystyrene board or a polyurethane board, etc., generally a foam thermal insulation layer 3. The other side of the insulation layer 3 is bonded with a concrete layer 5, and a steel wire mesh 6 is arranged inside the concrete layer 5. The part of the bolt rod 2 located inside the insulation layer 3 is covered with a waterproof support pipe 22. When water vapor condenses on the insulation layer 3, it will condense on the outside of the waterproof support pipe 22 and will not directly 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 corroding when it encounters water, thus avoiding the possibility of breaking after deep corrosion. Therefore, the waterproof support pipe 22 needs to be impermeable and stable when it encounters water. At the same time, the waterproof support tube 22 is supported between the outer wall panel 1 and the insulation gland 23. Specifically, after the bolt rod 2 passes through the insulation layer 3, the insulation gland 23 is put on the bolt rod 2, and then the insulation gland 23 is fastened with a nut and attached to one end of the waterproof support tube 22. In this way, the distance between the outer wall panel 1 and the insulation gland 23 is determined by the waterproof support tube 22. Since the waterproof support tube 22 has a supporting effect on the outer wall panel 1, the outer wall panel 1 will not squeeze the insulation layer 3, thereby effectively avoiding the situation in which the insulation layer 3 is squeezed by wind force in the past. It is precisely from the perspective of waterproofing and supporting that the waterproof support tube 22 can be preferably 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 rod 2, so that even a slightly soft plastic tube, due to being close to the bolt rod 2, has sufficient supporting force to prevent the gasket from approaching the outer wall panel 1.

[0022] In this embodiment, a mortar bonding layer 4 is also included. The mortar bonding layer 4 is arranged between the exterior wall panel 1 and the insulation layer 3 to further enhance the connection between the exterior wall panel 1 and the insulation layer 3, thereby avoiding damage to the exterior wall panel 1 and separation from the insulation layer 3 due to point-like contact.

[0023] In one embodiment, the heat-insulating gland 23 is a plastic heat-insulating gland. The plastic heat-insulating gland can be circular, and the diameter is generally not less than 15 mm.

[0024] 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 8 and mortise and tenon protrusions 9 are provided at both ends of the concrete layer 5, and different thermal insulation wallboards can be spliced ​​through the mortise and tenon grooves 8 and the mortise and tenon protrusions 9.

[0025] In a preferred embodiment, an inner wall panel 7 may be bonded to one side of the concrete layer 5 to further enhance the practicality of the thermal insulation wall panel.

[0026] This embodiment is only an illustration of the concept and implementation of the utility model, and does not limit it. Under the concept of the utility model, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. A durable thermal insulation wall panel, comprising an outer wall panel, an insulation layer, a concrete layer, a wire mesh and a bolt rod, wherein the outer wall panel, the insulation layer and the concrete layer are arranged in sequence from left to right, the wire mesh is located in the concrete layer, and a plurality of bolt mounting holes are provided on the outer wall panel, characterized in that: The bolt rod passes through the bolt installation hole and the thermal insulation layer, and the rear end is bent to form a hook, and the steel wire mesh is clamped on the hook.

2. The durable thermal insulation wallboard according to claim 1, 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.

3. The durable thermal insulation wallboard according to claim 2, characterized in that: The water-proof support pipe is a plastic pipe and the inner wall of the plastic pipe is in contact with the bolt rod.

4. The durable thermal insulation wallboard according to claim 1, characterized in that: The bolt mounting hole is a countersunk hole.

5. The durable thermal insulation wallboard according to any one of claims 1 to 4, characterized in that: Also included is an interior wall panel, wherein the interior wall panel is connected to the concrete layer.

6. The durable thermal insulation wall panel according to claim 5, characterized in that: It also includes a mortar bonding layer, which is arranged between the exterior wall board and the thermal insulation layer.

7. The durable thermal insulation wall panel according to claim 5, characterized in that: The concrete layer is a lightweight aggregate concrete layer.

8. The durable thermal insulation wall panel according to claim 5, characterized in that: The exterior wall board is a calcium silicate board, a cement board or a silicon magnesium board, and the thermal insulation layer is an extruded board layer, a graphite benzene board layer, a polystyrene board layer or a polyurethane board layer.

9. The durable thermal insulation wall panel according to claim 2, characterized in that: The heat-insulating gland is a plastic heat-insulating gland, which is circular and has a diameter of not less than 15 mm.

10. The durable thermal insulation wall panel according to claim 6, characterized in that: The concrete layer is bonded to the insulation layer, and mortise and tenon grooves and mortise and tenon protrusions are provided at both ends of the concrete layer. Two insulation wall panels can be spliced ​​through the mortise and tenon grooves and mortise and tenon protrusions.

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