Heat preservation type wallboard

Abstract

The utility model discloses a heat preservation type wallboard, which relates to the technical field of wallboards for buildings and comprises an outer wallboard, a heat preservation layer, a concrete layer, a steel wire mesh and bolt bars, the outer wallboard, the heat preservation layer and the concrete layer are sequentially arranged from left to right, the steel wire mesh is located in the concrete layer, and a plurality of bolt mounting holes are formed in 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 to the hook. A support is arranged between the external wall panel and the heat preservation layer, the support is arranged on the bolt rod in a penetrating mode and supported between the external wall panel and the heat preservation layer to form a gap, and a pouring layer is formed in the gap in a pouring mode. The wallboard is good in heat preservation effect, long in service life, capable of effectively preventing the bolts from being corroded, better in fastening effect on the heat preservation layer, not prone to shaking and falling off and good in flame retardant property.

Description

Technical Field

[0001] The utility model relates to a building wallboard, in particular to a heat-insulating wallboard. Background Art

[0002] During the construction process, after the main structure is completed, an insulation structure needs to be built on the outside of the exterior wall. However, during the construction process, the main structure is a cast cement wall, and non-main areas such as the bottom edge of the window sill or non-load-bearing areas are built with hollow bricks, and then the insulation layer is constructed on the outside of the brick wall and the main cement wall through an external hanging structure. However, due to the limitations of existing construction technology, the insulation layer on the outside of the brick wall cannot be guaranteed to be on the same plane as the insulation layer on the outside of the cement wall, resulting in a construction step difference, which affects the insulation effect of the wall; on the other hand, first building the brick wall and then hanging the insulation layer requires two construction processes, with a long construction period and high cost. The use of an external hanging structure for the insulation layer construction will create a risk of falling off due to erosion over time.

[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 wire mesh sheet inside the concrete layer, and bolts passing through the outer wall panel and the insulation layer and welded to the steel wire mesh sheet. Because the outer wall panel and the insulation layer are welded and fixed to the inner steel wire 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 that the thermal insulation wallboard still has the following shortcomings during use: 1. There is a temperature difference between the inside and outside of the building during use. When the water vapor inside 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 fastening function. In this way, the exterior wallboard will still fall off, making the service life of the wallboard inconsistent with the service life of the building body; 2. Since the insulation layer is generally supported by materials such as polystyrene foam, the texture is relatively soft. Under the action of wind, the exterior wallboard will be squeezed inward or stretched outward. 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 fastening effect, causing the exterior wallboard to swing more significantly inside and outside and eventually fall off. The above disadvantages are particularly obvious in areas with large temperature differences between cold and warm and windy areas; 3. The thickness of the exterior wallboard is relatively thin and cannot protect the insulation layer. When a fire occurs, the high temperature outside will quickly penetrate the exterior wallboard and then be transmitted 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 generate 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. 4. Bolts and wire mesh are welded. Due to the welding effect, the welding point has weak resistance to plastic deformation, especially poor shear resistance, and it is easy for welding points to be unqualified. In addition, during the transportation and installation process, the wire mesh is easily damaged by vibration, causing the welding point to fail, thereby 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 at the same time, the overall load-bearing capacity, flexural resistance, and seismic resistance of the wall panel are affected to varying degrees. Utility Model Content

[0004] The purpose of the utility model is to provide a heat-insulating wall panel, which has good heat-insulating effect and long service life, can effectively prevent bolts from corrosion, has better fastening effect on the heat-insulating layer, is not easy to shake and fall off, and has good flame retardant performance.

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

[0006] A 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. A bracket is provided between the exterior wall panel and the insulation layer. The bracket passes through the bolt rod and is supported to form a gap between the exterior wall panel and the insulation layer. A casting layer is cast in the gap.

[0007] Preferably, the bracket is in the shape of a bobbin and is further provided with an opening.

[0008] Preferably, 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 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 plastic pipe is in contact with the bolt rod.

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

[0011] Preferably, it further comprises an inner wall panel, wherein the inner wall panel is connected to the concrete 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 thermal insulation layer, and mortise and tenon grooves and mortise and tenon protrusions are provided at both ends of the concrete layer, and the two wall panels can be spliced ​​through the mortise and tenon grooves and mortise and tenon protrusions.

[0016] In the above technical solution, the bracket is sleeved on the bolt rod and supported between the insulation layer and the exterior wall panel, so that a gap is formed between the insulation layer and the exterior wall panel, and a casting layer is directly cast in the gap. By casting, the gap between the exterior wall panel and the insulation layer can be better filled, so that the insulation layer and the exterior wall panel are more firmly adhered; at the same time, the casting layer increases the distance between the insulation layer and the outside world, that is, the casting layer increases the thickness of the exterior wall panel. When a fire occurs, the casting layer and the exterior wall panel work together to extend the conduction distance of the external high temperature to the insulation layer, and avoid the insulation layer from melting after being baked at high temperature, that is, the casting layer also has a certain flame retardant effect. At the same time, the casting layer can be used as the supplementary thickness of the exterior wall panel and bonded to the exterior wall panel, which can enhance the overall strength of the exterior wall panel, make the exterior wall panel not easy to crack, and extend the service life of the exterior wall panel.

[0017] 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 prevent the bolt rod from moving outward, avoid delamination and damage to the wall panel, and enhance its service life.

[0018] 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 adhering to the iron bolt rod, thereby effectively preventing the bolt rod from being corroded by water. In addition, the bracket and the waterproof support tube also have a supporting function. The bracket and the waterproof support tube are both sleeved on the bolt rod, that is, the bracket and the waterproof support tube are jointly supported between the outer wall panel and the insulation gland and nut. When the outer wall panel is squeezed by wind, the bracket and the waterproof support tube support the outer wall panel and the casting layer 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. 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic cross-sectional view of the structure of the thermal insulation wall panel;

[0020] Figure 2 It is a schematic diagram of the support structure of the thermal insulation wall panel.

[0021] In the figure, 1 is an exterior wall panel; 11 is a bolt installation hole; 2 is a casting layer; 21 is a bracket; 211 is a center hole; 212 is a baffle; 3 is an insulation layer; 31 is a waterproof support pipe; 32 is an insulation gland; 4 is a bolt rod; 5 is a concrete layer; 51 is a steel mesh; 6 is an interior wall panel; 7 is a mortise and tenon protrusion; 8 is a mortise and tenon groove. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] like Figure 1 to Figure 2 As shown, the thermal insulation wall panel includes an exterior wall panel 1, on which a plurality of bolt mounting holes 11 are provided. The tail of the bolt rod 4 passes through the bolt mounting hole 11 and the head of the bolt rod 4 remains in the bolt mounting hole 11. Then, the bracket 21 is sleeved on the bolt rod 4 through the center hole 211. The tail of the bolt rod 4 continues to extend through the thermal insulation layer 3 and then penetrates into the concrete layer 5 and is bent to form a hook. The steel wire mesh 51 is clamped on the hook. The operation is simple, and the hook will not damage the structure of the steel wire mesh 51, nor will it affect its bearing capacity. At the same time, the hook clamped on the steel wire mesh 51 can also prevent the bolt rod 4 from moving outward, avoid delamination and damage to the wall panel, and enhance its service life.

[0024] The baffles 212 at both ends of the bracket 21 are respectively against the outer wall panel 1 and the insulation layer 3, so that a gap is formed between the outer wall panel 1 and the insulation layer 3, and a casting layer 2 is cast in the gap. The casting layer 2 connects the outer wall panel 1 and the insulation layer 3. Through the later casting method, the gap between the outer wall panel 1 and the insulation layer 3 can be better filled, so that the bonding between the outer wall panel 1 and the insulation layer 3 is more firmly. At the same time, the casting layer 2 is bonded to the outer wall panel 1 as a supplement to the thickness of the outer wall panel 1, which can not only enhance the strength of the outer wall panel 1 and make it less likely for the outer wall panel 1 to crack, but also prevent the external high temperature from being conducted inward in case of fire, so as to prevent the insulation layer 3 from melting due to heat and losing its insulation function. The insulation layer 3 can be an extruded board, a graphite benzene board, a polystyrene board or a polyurethane board, etc., generally a foam insulation layer 3. A concrete layer 5 is bonded to the other side of the insulation layer 3, and a steel wire mesh 51 is arranged in the concrete layer 5.

[0025] In this embodiment, the exterior wall panel 1 is generally made of calcium silicate board, cement board or silicon magnesium board, etc. The exterior wall panel 1 has the protective functions of no need to brush mortar and anti-impact, flame retardant, etc., and can withstand gravity during transportation. The pouring layer 2 is preferably light aggregate concrete, and the thickness is preferably 40mm. The concrete layer 5 is the main structure of the wall panel, which plays the main supporting, reinforcing, anti-bending and other functions. Preferably, the concrete layer 5 is made of thermal insulation and environmentally friendly light aggregate concrete. Mortise and tenon grooves 8 and mortise and tenon protrusions 7 are provided at both ends of the concrete layer 5, and the mortise and tenon grooves 8 and mortise and tenon protrusions 7 can realize the splicing of different wall panels.

[0026] In a preferred embodiment, the portion of the bolt rod 4 located in the insulation layer 3 is sheathed with a waterproof support tube 31. When water vapor condenses on the insulation layer 3, it will condense on the outside of the waterproof support tube 31 and will not adhere to the bolt rod 4. This prevents direct contact between water vapor and the bolt rod 4, effectively preventing the bolt rod 4 from being corroded by water, and thus avoiding the possibility of the bolt rod 4 breaking after deep corrosion. Therefore, the waterproof support tube 31 needs to be impermeable and stable when in contact with water. At the same time, the bracket 21 and the waterproof support tube 31 work together to support the outer wall panel 1 and the insulation cover 32. Specifically, after the bolt rod 4 passes through the insulation layer 3, the insulation cover 32 is put on the bolt rod 4, and then the insulation cover 32 is tightened with a nut and attached to one end of the waterproof support tube 31 (the other end of the waterproof support tube 31 is against the bracket 21). In this way, the distance between the outer wall panel 1 and the insulation cover 32 is determined by the waterproof support tube 31 and the bracket 21. Since the bracket 21 and the waterproof support tube 31 jointly support the outer wall panel 1 and the casting layer 2, the outer wall panel 1 and the casting layer 2 will not squeeze the insulation layer 3, thereby effectively avoiding the situation in which the insulation layer 3 is squeezed by wind in the past.

[0027] In this embodiment, from the perspective of waterproofing and supporting, the waterproof support pipe 31 and the bracket 21 can be preferably made of plastic material, which is both waterproof and has a certain supporting strength. In particular, the plastic pipe can be a relatively hard plastic pipe, but it can also be a plastic pipe with a certain degree of softness. The plastic pipe is tightly sleeved outside the bolt rod 4, so that even a slightly soft plastic pipe has sufficient supporting force to prevent the gasket from approaching the exterior wall panel 1 because it is close to the bolt rod 4.

[0028] In one embodiment, the heat-insulating gland 32 is a plastic heat-insulating gland. The plastic heat-insulating gland can be circular, and the diameter is generally not less than 15 mm.

[0029] As an embodiment, an inner wall panel 6 may be bonded to one side of the concrete layer 5 to increase the practicality of the wall panel.

[0030] 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 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 arranged on the outer wall panel, characterized in that: The bolt rod passes through the bolt mounting hole and the insulation layer, and the rear end is bent to form a hook, and the wire mesh is clamped on the hook; a bracket is provided between the exterior wall panel and the insulation layer, and the bracket passes through the bolt rod and supports the gap between the exterior wall panel and the insulation layer, and a casting layer is cast in the gap.

2. The thermal insulation wallboard according to claim 1, characterized in that: The support is in the shape of a bobbin and is further provided with an opening.

3. The thermal insulation wallboard according to claim 1, characterized in that: The part of the bolt rod located in the insulation layer is covered with a waterproof support tube, and the bolt rod is penetrated by an insulation pressure cover, which is fastened to one side of the insulation layer via a nut, and the waterproof support tube is supported between the insulation layer and the insulation pressure cover.

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

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

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

7. The thermal insulation wallboard according to claim 6, characterized in that: The concrete layer is a lightweight aggregate concrete layer.

8. The thermal insulation wallboard according to claim 6, 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 thermal insulation wallboard according to claim 3, 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 thermal insulation wallboard according to claim 7, characterized in that: The concrete layer is bonded to the thermal insulation layer, and mortise and tenon grooves and mortise and tenon protrusions are provided at both ends of the concrete layer, and the two wall panels can be spliced ​​through the mortise and tenon grooves and mortise and tenon protrusions.

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