Sandwich thermal insulation wallboard capable of preventing thermal insulation layer from being pressed

Abstract

The utility model discloses a sandwich thermal insulation wallboard capable of preventing a thermal insulation layer from being pressed. The sandwich thermal insulation wallboard consists of an inner wallboard, the thermal insulation layer, an outer wallboard, a connecting piece and a pressed supporting piece, the inner wallboard and the outer wallboard are made of lightweight concrete materials, the connecting piece is composed of a screw, a nut and a gasket and used for connecting the inner wallboard and the outer wallboard, and the compression supporting piece can effectively limit out-of-plane displacement of the inner wallboard and the outer wallboard. The pressure bearing piece capable of bearing pressure is arranged between the inner leaf wall plate and the outer leaf wall plate, so that the sandwich heat preservation layer can be prevented from being pressed and deformed, and risks such as damage to the outer facade of a building are reduced. And compared with a traditional lightweight concrete external wall panel, structural thermal insulation integration can be achieved, the construction and performance advantages are considered, and the lightweight concrete external wall panel has wide application prospects in external envelope structures.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, relates to a frame structure, a frame-shear wall structure, a frame core tube structure and various steel structures, and particularly relates to a sandwich insulation wall panel for preventing an insulation layer from being compressed. Background Art

[0002] The sandwich insulation wall panel is constructed so that the inner and outer leaf wall panels are composited with the insulation layer into a whole. While having good thermal insulation and heat insulation properties, there is no need to install the insulation material and the wall panels separately during installation. It has convenient construction performance and has good application prospects.

[0003] The use of lightweight concrete materials such as steam-pressurized concrete, foamed concrete, and foam particle concrete as inner and outer leaf wall panels to form sandwich insulation wall panels can greatly reduce the deadweight of the wall panels. In actual construction, it was found that the connectors of the existing sandwich insulation lightweight wall panel structure only connect the inner and outer leaf wall panels. However, due to the low structural strength of the sandwich insulation layer material, the insulation layer is prone to irreversible plastic deformation after being compressed under the action of wind pressure, and even the insulation layer shifts. In addition, organic insulation materials are prone to deterioration and powdering over time and under the action of ultraviolet rays. Both of the above factors will cause gaps to form between the inner and outer leaf wall panels, which cannot effectively bear the pressure, resulting in damage to the building facade and risks such as water leakage. Utility Model Content

[0004] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the utility model is to provide a sandwich insulation wall panel that prevents the insulation layer from being compressed, while meeting the insulation and heat insulation requirements of the external protective system, preventing the sandwich insulation layer from being compressed and improving the durability of the wall panel.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A sandwich insulation wall panel for preventing an insulation layer from being compressed, the wall panel comprising an inner leaf wall panel, an insulation layer, an outer leaf wall panel, a plurality of connectors and a plurality of compression bearing members; the inner leaf wall panel and the outer leaf wall panel are respectively placed on both sides of the insulation layer and are integrated by the connectors;

[0007] The pressure bearing member is a hollow structure with a first hole along the thickness direction of the wallboard. The pressure bearing member is located in the insulation layer, and the two ends of the pressure bearing member along the thickness direction of the wallboard are in direct contact with the inner leaf wallboard and the outer leaf wallboard respectively; the connecting member includes a screw and a nut, the screw directly or through the pressure bearing member penetrates the inner leaf wallboard, the insulation layer and the outer leaf wallboard, and the nut is installed on the side of the inner leaf wallboard and the outer leaf wallboard away from the insulation layer. That is, the screw can penetrate the first hole of the pressure bearing member, or directly penetrate the second hole in the insulation layer along the thickness direction of the wallboard.

[0008] In one embodiment, the inner leaf wall panel, the insulation layer and the outer leaf wall panel are provided with a second through hole along the thickness direction of the wall panel for the screw to pass through; when the second hole of the insulation layer coincides with the first hole of the pressure support member, the screw passes through the pressure support member and passes through the inner leaf wall panel, the insulation layer and the outer leaf wall panel.

[0009] In one embodiment, the cross-sectional area of ​​the compression support member along the wall surface direction is determined based on the calculation of the wall panel out-of-plane load, and the strength bearing capacity of the compression support member is greater than the maximum load borne by the wall panel out-of-plane.

[0010] In one embodiment, the cross-sectional shape of the compression support member along the wall surface direction is circular, rectangular or polygonal, with a first hole provided at the center thereof, and the compression support member is made of ordinary steel, stainless steel or FRP material.

[0011] In one embodiment, the plurality of connecting members are arranged in a straight line or in a plum blossom shape along the height direction of the wall panel, and the plurality of compression bearing members are arranged in a plum blossom shape, in a straight line or in a multi-point symmetrical arrangement along the height direction of the wall panel.

[0012] In one embodiment, the compression bearing member is compressed and fixed in the insulation layer to limit the out-of-plane displacement of the inner blade wall panel and the outer blade wall panel.

[0013] In one embodiment, the connector further comprises a gasket, and the gasket is arranged on a side of the nut close to the thermal insulation layer;

[0014] A groove is arranged at the connecting piece on the side of the inner leaf wall panel and the outer leaf wall panel away from the insulation layer, the nut is fixed in the groove, and both ends of the screw rod do not protrude from the surface of the inner leaf wall panel and the outer leaf wall panel.

[0015] In one embodiment, the screw, nut, and gasket are made of ordinary steel, stainless steel, or FRP; the inner and outer leaf wall panels are made of lightweight concrete materials such as autoclaved aerated concrete, foamed concrete, and foam particle concrete; the insulation layer is made of extruded polystyrene board, molded polystyrene board, rigid foam polyurethane board, phenolic board, or rock wool.

[0016] In one embodiment, adhesive is coated on the contact surfaces between the inner leaf wall panel and the thermal insulation layer, and between the outer leaf wall panel and the thermal insulation layer.

[0017] In one embodiment, anti-leakage sealing strips or sealants are provided in the inner grooves of the inner leaf wall panels and the outer leaf wall panels.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model adopts lightweight concrete material as the inner and outer leaf wall panels, and has a light dead weight; a compressive support is arranged between the inner and outer leaf wall panels, which can effectively bear the pressure, prevent the insulation layer of the sandwich insulation wall panel from being compressed and deformed under the action of out-of-plane loads such as wind loads, reduce the risk of damage to the building facade caused by compressive deformation or deterioration of the insulation layer, take into account the construction and performance advantages, and have better durability than traditional sandwich insulation wall panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the sandwich insulation wall panel of the utility model.

[0021] Figure 2 The three-dimensional schematic diagram of the utility model sandwich insulation wall panel in which the connecting parts and the pressure bearing parts are arranged in combination.

[0022] Figure 3 for Figure 1 and Figure 2 A three-dimensional schematic diagram of the sandwich insulation wall panel connection shown.

[0023] Figure 4 for Figure 1 and Figure 2 The three-dimensional schematic diagrams of the pressure bearing member shown, (a) indicates that the cross-section of the pressure bearing member is a regular hexagon, (b) indicates that the cross-section of the pressure bearing member is a rectangle, and (c) indicates that the cross-section of the pressure bearing member is a circle.

[0024] Figure 5 for Figure 1 and Figure 3 The schematic diagrams of the arrangement of the compressive supporting members in the insulation layer are shown, (a) represents the compressive supporting members being arranged in a plum blossom shape along the height direction of the wall panel, (b) represents the compressive supporting members being arranged in a straight line along the height direction of the wall panel, and (c) represents the compressive supporting members being arranged in a multi-point symmetrical shape along the height direction of the wall panel.

[0025] Figure 6 for Figure 1 and Figure 2 A three-dimensional schematic diagram of the inner leaf wall panel of the sandwich insulation wall panel shown.

[0026] In the figure: 1-inner leaf wall panel; 11-inner leaf wall panel steel mesh; 12-inner groove opening; 13-inner leaf wall panel outer convex structure; 14-bolt hole; 15-groove; 2-insulation layer; 3-outer leaf wall panel; 31-outer leaf wall panel steel mesh; 4-connector; 41-screw; 42-nut; 43-gasket; 5-compression bearing member. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0031] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0032] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0033] After analysis, it is believed that traditional precast concrete sandwich insulation wall panels have problems such as heavy weight of the wall panels and easy compression and deformation of the insulation layer, which affect the construction performance and durability of the wall panels.

[0034] To this end, the utility model provides a sandwich insulation wall panel that prevents the insulation layer from being compressed. Figures 1 to 6 The wall panel is composed of an inner leaf wall panel 1, an insulation layer 2, an outer leaf wall panel 3, a plurality of connecting members 4 and a plurality of compression supporting members 5.

[0035] like Figure 1 and Figure 2As shown, the inner leaf wall panel 1 and the outer leaf wall panel 3 are respectively placed on both sides of the insulation layer 2, and are formed into a whole through the connecting member 4, and are hoisted as a whole during transportation, hoisting and installation. The pressure bearing member 5 is a hollow structure, having a first hole along the thickness direction of the wall panel. The pressure bearing member 5 is located in the insulation layer 2, and the two ends of the pressure bearing member 5 along the thickness direction of the wall panel are in direct contact with the inner leaf wall panel 1 and the outer leaf wall panel 3 respectively, providing out-of-plane constraints for the inner leaf wall panel 1 and the outer leaf wall panel 3.

[0036] like Figure 3 As shown, the connecting member 4 is composed of a screw 41, a nut 42 and a gasket 43. The screw 41 passes through the inner leaf wall panel 1, the insulation layer 2 and the outer leaf wall panel 3, and the nut 42 is respectively installed on the side of the inner leaf wall panel 1 and the outer leaf wall panel 3 away from the insulation layer 2; the inner leaf wall panel 1, the insulation layer 2 and the outer leaf wall panel 3 are provided with second holes for passing the screw 41 at several positions of the connecting member 4 along the thickness direction of the wall panel, and the screw 41 passes through the second hole to connect the inner and outer leaf wall panels.

[0037] In one embodiment, the second hole of the thermal insulation layer 2 may also be located in the first hole of the pressure bearing member 5. In this case, the screw 41 passes through the first hole of the pressure bearing member 5 and forms a combined connection member with the pressure bearing member 5. Figure 2 Obviously, in the same sandwich insulation wall panel, all the screws 41 can be directly passed through the second hole to connect the inner leaf wall panel 1, the insulation layer 2 and the outer leaf wall panel 3, or all the screws 41 can be connected to the inner leaf wall panel 1, the insulation layer 2 and the outer leaf wall panel 3 through the pressure bearing member 5, or part of the screws 41 can be directly passed through the second hole to connect the inner leaf wall panel 1, the insulation layer 2 and the outer leaf wall panel 3, while the other part of the screws 41 can be passed through the pressure bearing member 5 to connect the inner leaf wall panel 1, the insulation layer 2 and the outer leaf wall panel 3.

[0038] In one embodiment, the connector 4 further includes a gasket 43, which is disposed on a side of the nut 42 close to the insulation layer 2, and can increase the force-bearing area, prevent damage to the wall surface, and reduce the connection strength.

[0039] Generally, the connecting members 4 are arranged in a straight line or in a plum blossom shape along the height direction of the wallboard, respectively. Figure 1 and Figure 2 As shown, considering the convenience of construction, a linear arrangement is preferred.

[0040] Figure 4 A three-dimensional schematic diagram of the compression support 5 is given, as shown in FIG. Figure 4 As shown in (a), (b) and (c), the cross-sectional shape of the pressure bearing member 5 along the wall surface direction is polygonal, rectangular or circular, and a first hole is provided at the center thereof.

[0041] In one embodiment, the cross-sectional area of ​​the compression support 5 along the wall surface direction should be determined based on the calculation of the out-of-plane load of the wall panel, and the strength bearing capacity of the compression support 5 should be greater than the maximum out-of-plane load of the wall panel.

[0042] In one embodiment, the pressure bearing member 5 can be made of ordinary steel, stainless steel or FRP material.

[0043] Figure 5 A schematic diagram of the arrangement of the compression support member 5 in the insulation layer 2 is given. The compression support member 5 is squeezed and fixed in the insulation layer 2 to limit the out-of-plane displacement of the inner leaf wall panel 1 and the outer leaf wall panel 3. Figure 5 As shown in (a), (b) and (c), the pressure bearing members 5 are arranged in a plum blossom shape, a straight line shape or a multi-point symmetrical arrangement along the height direction of the wall panel. Considering the uneven wind pressure, a plum blossom shape or a multi-point symmetrical arrangement is preferred; considering the convenience of processing, a straight line arrangement can also be adopted.

[0044] Figure 6 A schematic diagram of the three-dimensional structure of the inner leaf wall panel 1 is given. The structure of the outer leaf wall panel 3 is consistent with that of the inner leaf wall panel 1, and only the structure of the inner leaf wall panel 1 is described.

[0045] like Figure 6 As shown, a steel mesh 11 is arranged in the lightweight concrete of the inner leaf wall panel 1, and the number of layers of the steel mesh 11 is one or two.

[0046] In one embodiment, an anti-leakage sealing strip or sealant is provided in the inner groove opening 13 of the inner leaf wall panel 1. When assembled with adjacent wall panels, the sealing strip can prevent leakage problems from occurring in the vertical joints of the wall panels.

[0047] In one embodiment, a groove 15 is provided at the connecting piece on the plane of the inner leaf wall panel 1 that is not in direct contact with the insulation layer, and the nut 42 and gasket 43 of the connecting piece are fixed in the groove, and both ends of the screw rod 41 do not protrude from the surface of the inner leaf wall panel 1.

[0048] To reduce energy consumption, the screw 41, nut 42 and gasket 43 of the connector 4 may be made of stainless steel or FRP material with low thermal conductivity to reduce the impact of the thermal bridge effect. Considering economy, ordinary steel may also be used.

[0049] In one embodiment, the inner leaf wall panels 1 and the outer leaf wall panels 3 are made of lightweight concrete materials such as autoclaved aerated concrete, foamed concrete, and foam particle concrete to reduce the deadweight of the wall panels. Since such materials have low compressive strength, the thickness of the wall panels should meet the design requirements.

[0050] In one embodiment, the thermal insulation layer 2 may be made of extruded polystyrene board, molded polystyrene board, rigid foam polyurethane board, phenolic board, rock wool, etc.

[0051] Further explanation of the above structure is as follows:

[0052] like Figure 1 and Figure 6 As shown, a preferred construction method of the structure is as follows:

[0053] The first step is to process the inner and outer leaf wall panels of lightweight concrete, determine the size of the wall panels according to the structural requirements, and set the corresponding outer convex structure and inner groove opening;

[0054] The second step is to place a number of pressure bearing members 5 at corresponding positions on the top surface of the thermal insulation layer 2, and use equipment to press the pressure bearing members 5 into the thermal insulation layer 2;

[0055] The third step is to apply adhesive on the top surface of the outer leaf wall panel 3, and place both ends of the outer leaf wall panel 3 on the fixed bracket, lay the insulation layer 2 on the outer leaf wall panel 3, and after applying adhesive on the top surface of the insulation layer 2, place the inner leaf wall panel 3 on the insulation layer 2, and nail a mesh cloth if necessary;

[0056] The fourth step is to arrange the connection parts at the top surface of the inner leaf wall panel 1 and the bottom surface of the outer leaf wall panel 3 and open the second hole and groove at the same time. After the screw of the connection part 4 passes through the second hole, the connection part 4 is fixed with a nut and a gasket.

[0057] In summary, in the present invention, the connectors and the pressure bearing members can effectively prevent the insulation layer of the sandwich insulation wall panel from being compressed and deformed under the action of out-of-plane loads such as wind loads while ensuring the integrity of the wall panel. The pressure bearing members can effectively bear the pressure, reduce the risk of damage to the building facade caused by compression deformation or deterioration of the insulation layer, and improve the durability of the wall panel. At the same time, the inner and outer leaf wall panels are made of lightweight concrete materials, which can effectively reduce the deadweight of the wall panel, facilitate construction and hoisting, and have a certain degree of thermal insulation. The connectors and the pressure bearing members can be made of FRP and stainless steel materials to effectively reduce the impact of thermal bridges and improve the thermal insulation and heat insulation performance of the wall panel.

[0058] The above are only preferred specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes and substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A sandwich insulation wall panel for preventing the insulation layer from being compressed, characterized in that: The wall panel is composed of an inner leaf wall panel (1), a thermal insulation layer (2), an outer leaf wall panel (3), a plurality of connecting members (4) and a plurality of pressure bearing members (5); the inner leaf wall panel (1) and the outer leaf wall panel (3) are respectively placed on both sides of the thermal insulation layer (2) and are formed into a whole through the connecting members (4); The pressure-bearing support member (5) is a hollow structure having a first hole along the thickness direction of the wall panel. The pressure-bearing support member (5) is located in the thermal insulation layer (2), and the two ends of the pressure-bearing support member (5) along the thickness direction of the wall panel are in direct contact with the inner leaf wall panel (1) and the outer leaf wall panel (3) respectively; the connecting member (4) comprises a screw rod (41) and a nut (42), the screw rod (41) directly or through the pressure-bearing support member (5) penetrates the inner leaf wall panel (1), the thermal insulation layer (2) and the outer leaf wall panel (3), and the nut (42) is respectively installed on the side of the inner leaf wall panel (1) and the outer leaf wall panel (3) away from the thermal insulation layer (2).

2. A sandwich insulation wall panel for preventing the insulation layer from being compressed according to claim 1, characterized in that: The cross-sectional area of ​​the compression support member (5) along the wall surface direction is determined by calculating the load outside the wall panel surface, and the strength bearing capacity of the compression support member (5) is greater than the maximum load outside the wall panel surface.

3. A sandwich insulation wall panel for preventing the insulation layer from being compressed according to claim 1 or 2, characterized in that: The cross-sectional shape of the pressure bearing member (5) along the wall surface direction is circular, rectangular or polygonal, and a first hole is provided at the center thereof. The pressure bearing member (5) is made of ordinary steel, stainless steel or FRP material.

4. A sandwich insulation wall panel for preventing the insulation layer from being compressed according to claim 1, characterized in that: The plurality of connecting members (4) are arranged in a straight line or a plum blossom shape along the height direction of the wall panel, and the plurality of pressure bearing members (5) are arranged in a plum blossom shape, a straight line or a multi-point symmetrical arrangement along the height direction of the wall panel.

5. The sandwich insulation wall panel for preventing the insulation layer from being compressed according to claim 1, characterized in that: The pressure bearing member (5) is pressed and fixed in the thermal insulation layer (2), thereby limiting the out-of-plane displacement of the inner blade wall panel (1) and the outer blade wall panel (3).

6. The sandwich insulation wall panel for preventing the insulation layer from being compressed according to claim 1, characterized in that: The connecting member (4) further comprises a gasket (43), and the gasket (43) is arranged on a side of the nut (42) close to the thermal insulation layer (2); A groove (15) is provided at the connecting piece (4) on the side of the inner leaf wall panel (1) and the outer leaf wall panel (3) away from the insulation layer (2), the nut (42) is fixed in the groove (15), and both ends of the screw rod (41) do not protrude from the surface of the inner leaf wall panel (1) and the outer leaf wall panel (3).

7. A sandwich insulation wall panel for preventing the insulation layer from being compressed according to claim 6, characterized in that: The screw rod (41), nut (42) and gasket (43) are made of ordinary steel, stainless steel or FRP material; the inner leaf wall panel (1) and the outer leaf wall panel (3) are made of autoclaved aerated concrete, foamed concrete or foam particle concrete; the thermal insulation layer (2) is made of extruded polystyrene board, molded polystyrene board, rigid foam polyurethane board, phenolic board or rock wool.

8. The sandwich insulation wall panel for preventing the insulation layer from being compressed according to claim 1, characterized in that: Adhesive is coated on the contact surfaces between the inner leaf wall panel (1) and the thermal insulation layer (2), and between the outer leaf wall panel (3) and the thermal insulation layer (2).

9. The sandwich insulation wall panel for preventing the insulation layer from being compressed according to claim 1, characterized in that: Anti-leakage sealing strips or sealing glue are arranged in the inner groove openings (12) of the inner leaf wall panel (1) and the outer leaf wall panel (3).

10. The sandwich insulation wall panel for preventing the insulation layer from being compressed according to claim 1, characterized in that: The inner leaf wall panel (1), the thermal insulation layer (2) and the outer leaf wall panel (3) are provided with a second through hole along the thickness direction of the wall panel for the screw (41) to pass through; when the second hole of the thermal insulation layer (2) coincides with the first hole of the pressure-bearing support member (5), the screw (41) passes through the inner leaf wall panel (1), the thermal insulation layer (2) and the outer leaf wall panel (3) through the pressure-bearing support member (5).

Images