Prefabricated sandwich thermal insulation external wall panel and wall body

Abstract

The utility model belongs to the field of building heat preservation sandwich outer walls, and particularly relates to a prefabricated sandwich heat preservation outer wall plate and a wall body. The outer wall plate comprises a concrete outer acanthus 1 and a concrete inner acanthus 3, and a heat preservation material plate 2 is arranged between the concrete outer acanthus 1 and the concrete inner acanthus 3 in a clamped mode. The part, not larger than 80% of the thickness, of the top of the heat preservation material plate 2 and the top of the concrete inner acanthus 3 downwards form a groove, a cross beam 4 is arranged in the groove and fixedly connected with the concrete inner acanthus 3, the top of the cross beam 4 is not higher than the top of the heat preservation material plate 2, and a connecting piece extends out of the cross beam 4 in the direction of the concrete outer acanthus 1 and fixedly connected with the concrete outer acanthus 1. The cross beams extend out of the connecting pieces to connect and fix the inner concrete wall and the outer concrete wall, so that the whole sandwich floor slab can produce an integral structure, and during construction, only integral hoisting and fixing are needed, and cast-in-place is not needed.

Description

Technical Field

[0001] The utility model belongs to the field of building thermal insulation sandwich exterior walls, and particularly relates to a precast sandwich thermal insulation exterior wall panel and a wall body. Background Art

[0002] At present, under the background of the country's strong promotion of ultra-low energy consumption buildings, prefabricated structures have been vigorously promoted. Especially for steel structures, they have natural characteristics such as high strength and good seismic performance. Therefore, the country is also vigorously promoting steel structure residences.

[0003] For the exterior walls of steel structure residences, the traditional method of pasting thermal insulation on the outside of masonry walls is still adopted. This method has too much on-site work and does not meet the requirements of the country's green prefabricated buildings.

[0004] There are existing sandwich thermal insulation walls in the prior art, including inner and outer concrete walls, with thermal insulation materials clamped between the two layers of walls. For example, in CN202022743485.7 and CN202210273912.0, their disadvantage is that they are cast-in-place floor slabs and the construction is complex. Summary of the Utility Model

[0005] To solve the problems of complex construction of cast-in-place floor slabs, the utility model provides a precast sandwich thermal insulation exterior wall panel and a wall body.

[0006] The purpose of the utility model is achieved in the following way: A precast sandwich thermal insulation exterior wall panel, the exterior wall panel includes a concrete outer leaf panel 1 and a concrete inner leaf panel 3. A thermal insulation material panel 2 is clamped between the concrete outer leaf panel 1 and the concrete inner leaf panel 3. The part of the thermal insulation material panel 2 with a thickness not exceeding 80% at the top and the top of the concrete inner leaf panel 3 form a groove downward. A cross beam 4 is arranged in the groove. The cross beam 4 is fixedly connected to the concrete inner leaf panel 3. The top of the cross beam 4 is not higher than the top of the thermal insulation material panel 2. The cross beam 4 extends a connecting piece towards the concrete outer leaf panel 1, and the connecting piece is fixedly connected to the concrete outer leaf panel 1.

[0007] Further, an inner wall embedded part 31 is arranged at the top of the concrete inner leaf panel 3. The top of the inner wall embedded part 31 is fixedly connected to the cross beam 4; an outer wall embedded part 11 is arranged at the top of the concrete outer leaf panel 1. One end of a connecting plate 5 is fixedly connected to the top of the outer wall embedded part 11, and the other end of the connecting plate 5 is fixedly connected to the cross beam 4.

[0008] Further, the inner wall embedded part 31 includes at least one vertical reinforcement embedded in the concrete inner leaf panel 3. A steel plate is fixed at the top of the vertical reinforcement. The top surface of the steel plate protrudes from the top surface of the concrete inner leaf panel 3 and is fixedly connected to the cross beam 4;

[0009] The outer wall embedded part 11 includes at least one vertical reinforcement embedded in the concrete outer leaf panel 1. A steel plate is fixed at the top of the vertical reinforcement. The top surface of the steel plate protrudes from the top surface of the concrete outer leaf panel 1 and is fixedly connected to the connecting plate 5.

[0010] Furthermore, the exterior wall embedded parts 11 and the interior wall embedded parts 31 are both arranged at intervals along the length direction of the cross beam 4.

[0011] Furthermore, the connecting plate 5 is an angle steel, and the connecting surface between the concrete inner leaf board 3 and the thermal insulation material board 2 is coplanar with the corner of the angle steel, and one side of the angle steel extends upward from the corner.

[0012] A wall body composed of the above-mentioned precast sandwich thermal insulation exterior wall wall panels includes a base 6. An embedded positioning part 7 is arranged at the top of the base 6. The embedded positioning part 7 includes at least one embedded vertical bar. A steel plate is fixed at the top of the vertical bar, and the top surface of the steel plate is exposed from the top surface of the base 6. An angle steel is fixedly connected to the top surface of the steel plate, and one side of the angle steel extends upward;

[0013] The first layer of exterior wall wall panel is arranged at the top of the base 6. The bottom of the connecting surface between the concrete inner leaf board 3 and the thermal insulation material board 2 of the first layer of exterior wall wall panel is inserted into the upward extending part of the angle steel of the embedded positioning part 7;

[0014] The second layer of exterior wall wall panel is arranged at the top of the first layer of exterior wall wall panel. The bottom of the connecting surface between the concrete inner leaf board 3 and the thermal insulation material board 2 of the second layer of exterior wall wall panel is inserted into the upward extending part of the angle steel at the top of the first layer of exterior wall wall panel;

[0015] There are a total of n layers of exterior wall wall panels, n≥2 and n is a natural number. The connecting plate 5 at the top of the topmost layer of exterior wall wall panel is a flat plate.

[0016] Compared with the prior art, the utility model hides the steel beam inside the floor slab and is lower than the thermal insulation material board, so as to insulate the steel beam, reduce the outward exposure of the steel beam, and reduce cold bridge condensation; the cross beam extends out the connecting piece to connect and fix the inner and outer concrete walls, so that the whole sandwich floor slab can be produced as an integral structure, and only need to be hoisted and fixed integrally during construction, without in-situ casting. Description of the Drawings

[0017] Figure 1 is a side view cross-sectional view of the sandwich thermal insulation exterior wall wall panel;

[0018] Figure 2 is Figure 1 an enlarged view of;

[0019] Figure 3 is a front view of the inner wall of the wall formed by the sandwich thermal insulation exterior wall;

[0020] Figure 4 is Figure 3 a perspective view of the concrete inner leaf board of;

[0021] Figure 5 is Figure 3 a perspective view of the concrete outer leaf board of;

[0022] Figure 6 It is a side sectional view of the wall formed by the sandwich insulated exterior wall;

[0023] Figure 7 is Figure 6 an enlarged view of the bottom;

[0024] Figure 8 is Figure 6 an enlarged view of the middle part;

[0025] Figure 9 is Figure 6 an enlarged view of the top.

[0026] Among them, there are concrete outer leaf board 1, exterior wall embedded parts 11, thermal insulation material board 2, concrete inner leaf board 3, interior wall embedded parts 31, cross beam 4, connecting plate 5, base 6, and embedded positioning parts 7. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] In the present invention, unless otherwise clearly defined and limited, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0029] As shown in the attached Figure 1-2 figures, a precast sandwich insulated exterior wall panel, the exterior wall panel includes a concrete outer leaf board 1 and a concrete inner leaf board 3. A thermal insulation material board 2 is clamped between the concrete outer leaf board 1 and the concrete inner leaf board 3. The part of the thermal insulation material board 2 not exceeding 80% of the thickness at the top and the top of the concrete inner leaf board 3 form a groove downward. A cross beam 4 is arranged in the groove. The cross beam 4 is fixedly connected to the concrete inner leaf board 3. The top of the cross beam 4 is not higher than the top of the thermal insulation material board 2. The cross beam 4 extends a connecting piece towards the concrete outer leaf board 1, and the connecting piece is fixedly connected to the concrete outer leaf board 1.

[0030] Preferably, the upper part of the thermal insulation material board 2 with a thickness not exceeding 50% forms a groove downward to thermally insulate the cross beam 4 as much as possible; the material of the thermal insulation material board 2 is preferably polystyrene board; the thickness of the concrete outer leaf board 1 is preferably 60±20 mm, the thickness of the thermal insulation material board 2 is preferably 100±30 mm, and the thickness of the concrete inner leaf board 3 is preferably 60±20 mm; the top of the thermal insulation material board 2 can be flush with the top of the cross beam 4 as shown in the figure, or can be higher than the top of the cross beam 4.

[0031] It should be noted that the sandwich thermal insulation exterior wall panel of the present application cannot be used for load-bearing walls, but for decorating exterior wall bodies, and is characterized by being convenient for construction hoisting and installation.

[0032] Furthermore, an inner wall embedded part 31 is arranged at the top of the concrete inner leaf board 3, and the top of the inner wall embedded part 31 is fixedly connected to the cross beam 4; an outer wall embedded part 11 is arranged at the top of the concrete outer leaf board 1, one end of a connecting plate 5 is fixedly connected to the top of the outer wall embedded part 11, and the other end of the connecting plate 5 is fixedly connected to the cross beam 4, so that the concrete outer leaf board 1 and the concrete inner leaf board 3 are fixed as a whole, and this structure can be realized during factory production, and only hoisting and fixing are required during on-site construction.

[0033] Furthermore, the inner wall embedded part 31 includes at least one vertical bar embedded in the concrete inner leaf board 3, preferably two, and preferably a horizontal or inclined elbow is arranged at the bottom for strengthening the fixing strength of the embedded part. The top of the vertical bar is fixed with a steel plate, and the top surface of the steel plate protrudes from the top surface of the concrete inner leaf board 3 and is welded and fixed to the cross beam 4;

[0034] The outer wall embedded part 11 includes at least one vertical bar embedded in the concrete outer leaf board 1, preferably two, and preferably a horizontal or inclined elbow is arranged at the bottom for strengthening the fixing strength of the embedded part. The top of the vertical bar is fixed with a steel plate, and the top surface of the steel plate protrudes from the top surface of the concrete outer leaf board 1 and is welded and fixed to the connecting plate 5.

[0035] Furthermore, as shown in the appendix Figure 3-5 shown, the outer wall embedded part 11 and the inner wall embedded part 31 are both arranged at intervals along the length direction of the cross beam 4; the cross beam 4 and the connecting plate 5 are both single-piece integral structures.

[0036] Furthermore, the connecting plate 5 is an angle steel, the connecting surface between the concrete inner leaf board 3 and the thermal insulation material board 2 is coplanar with the corner of the angle steel, and one side of the angle steel extends upward from the corner; a groove for inserting the top of the angle steel can be reserved at the bottom of the connecting surface between the concrete inner leaf board 3 and the thermal insulation material board 2, or the groove can be formed by later damage, and the purpose is to be used for positioning during construction hoisting to align the upper and lower walls.

[0037] The above is the state where the cross beam 4 and the connecting piece are arranged at the top of the sandwich insulation exterior wall panel. This structure can also be arranged on the side of the sandwich insulation exterior wall panel. Among them, the cross beam 4 is arranged vertically, and only the directions of other components are adjusted. There is no substantial change in the structure, which is used for connecting multiple walls into an integral wall surface.

[0038] Through the above structure, the outward exposure of the cross beam 4 is reduced, and cold bridge condensation is reduced.

[0039] Further, as shown in the appendix Figure 6-9 As shown, the wall body composed of the above-mentioned precast sandwich insulation exterior wall panels includes a base 6. The bottom of the base 6 is fixed to the floor slab of this layer of the building. As shown in the appendix Figure 7 As shown, a pre-embedded positioning part 7 is arranged on the top of the base 6. The pre-embedded positioning part 7 includes at least one pre-embedded vertical bar, preferably two, and preferably a horizontal or inclined elbow is arranged at the bottom for strengthening the fixing strength of the embedded part. A steel plate is fixed to the top of the vertical bar, and the top surface of the steel plate protrudes from the top surface of the base 6. An angle steel is fixedly connected to the top surface of the steel plate, and one side of the angle steel extends upward;

[0040] A first-layer exterior wall panel is arranged on the top of the base 6. The bottom of the connection surface between the concrete inner leaf panel 3 and the insulation material panel 2 of the first-layer exterior wall panel is inserted and positioned with the upward-extending part of the angle steel of the pre-embedded positioning part 7;

[0041] As shown in the appendix Figure 8 As shown, a second-layer exterior wall panel is arranged on the top of the first-layer exterior wall panel. The bottom of the connection surface between the concrete inner leaf panel 3 and the insulation material panel 2 of the second-layer exterior wall panel is inserted into the upward-extending part of the angle steel on the top of the first-layer exterior wall panel;

[0042] There are a total of n layers of exterior wall panels, n≥2 and n is a natural number. As shown in the appendix Figure 9 As shown, the connecting plate 5 on the top of the top-layer exterior wall panel is a flat plate, and the top of the top-layer exterior wall panel is connected to the roof slab of this layer of the building.

[0043] The fixing of the wall panels can be satisfied through insertion, but the fixing between the wall panels and the base 6, between the wall panels and between the wall panels and the roof slab can also be further strengthened by methods such as pouring concrete, welding pre-embedded parts reserved in the wall panels, and setting foaming materials in the prior art.

[0044] The above are only the preferred embodiments of the present invention. It should be noted that for those skilled in the art, without departing from the overall concept of the present invention, several changes and improvements can still be made, and these should also be regarded as the protection scope of the present invention.

Claims

1. A precast sandwich insulation exterior wall panel, the exterior wall panel comprising a concrete outer leaf (1) and a concrete inner leaf (3), with a thermal insulation material board (2) clamped between the concrete outer leaf (1) and the concrete inner leaf (3), characterized in that: For the part of the thermal insulation material board (2) not exceeding 80% of its thickness at the top and the top of the concrete inner leaf (3), a groove is formed downward, and a cross beam (4) is arranged in the groove. The cross beam (4) is fixedly connected to the concrete inner leaf (3). The top of the cross beam (4) is not higher than the top of the thermal insulation material board (2). The cross beam (4) extends a connecting piece towards the concrete outer leaf (1), and the connecting piece is fixedly connected to the concrete outer leaf (1).

2. The prefabricated sandwich thermal insulation exterior wall panel according to claim 1, characterized in that: An inner wall embedded part (31) is arranged at the top of the concrete inner leaf (3), and the top of the inner wall embedded part (31) is fixedly connected to the cross beam (4); an outer wall embedded part (11) is arranged at the top of the concrete outer leaf (1), one end of a connecting plate (5) is fixedly connected to the top of the outer wall embedded part (11), and the other end of the connecting plate (5) is fixedly connected to the cross beam (4).

3. The prefabricated sandwich thermal insulation exterior wall panel according to claim 2, characterized in that: The inner wall embedded part (31) includes at least one vertical bar embedded in the concrete inner leaf (3), and a steel plate is fixed at the top of the vertical bar. The top surface of the steel plate exposes from the top surface of the concrete inner leaf (3) and is fixedly connected to the cross beam (4); The outer wall embedded part (11) includes at least one vertical bar embedded in the concrete outer leaf (1), and a steel plate is fixed at the top of the vertical bar. The top surface of the steel plate exposes from the top surface of the concrete outer leaf (1) and is fixedly connected to the connecting plate (5).

4. The precast sandwich insulation exterior wall panel according to claim 3, characterized in that: The outer wall embedded part (11) and the inner wall embedded part (31) are both arranged at intervals along the length direction of the cross beam (4).

5. The precast sandwich insulation exterior wall panel according to claim 2, characterized in that: The connecting plate (5) is an angle steel. The connecting surface between the concrete inner leaf (3) and the thermal insulation material board (2) is coplanar with the corner of the angle steel, and one side of the angle steel extends upward from the corner.

6. A wall composed of prefabricated sandwich thermal insulation exterior wall wallboards as described in any one of claims 1-5, characterized in that: It includes a base (6). A pre-embedded positioning part (7) is arranged at the top of the base (6). The pre-embedded positioning part (7) includes at least one pre-embedded vertical bar, and a steel plate is fixed at the top of the vertical bar. The top surface of the steel plate exposes from the top surface of the base (6), and the top surface of the steel plate is fixedly connected to an angle steel, and one side of the angle steel extends upward; A first-layer exterior wall panel is arranged at the top of the base (6). The bottom of the connecting surface between the concrete inner leaf (3) and the thermal insulation material board (2) of the first-layer exterior wall panel is inserted into the part where the angle steel of the pre-embedded positioning part (7) extends upward; A second-layer exterior wall panel is arranged at the top of the first-layer exterior wall panel. The bottom of the connecting surface between the concrete inner leaf (3) and the thermal insulation material board (2) of the second-layer exterior wall panel is inserted into the part where the angle steel at the top of the first-layer exterior wall panel extends upward; The exterior wall panels are a total of n layers, n≥2 and n is a natural number. The connecting plate (5) at the top of the topmost layer exterior wall panel is a flat plate.

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