Background technology
Traditional cold bending thin wall steel external wall system is made up of gypsum plank a, light gauge cold-formed steel shape column b, glass fibre cotton c, OSB plate d, moistureproof paper e, warming plate f, outer decorative layer g, referring to Fig. 1.This external wall system directly is screwed OSB (Europe deals) plate on the light gauge cold-formed steel shape column, and the shortcoming of OSB plate is that mechanical property is relatively poor; Overlap imprecision between OSB plate and the plate, water resistance is poor.Increased the be connected work of warming plate with the light gauge cold-formed steel shape column, construction is complicated, and quality is difficult for guaranteeing.
The utility model content
The purpose of this utility model is exactly to provide a kind of external wall system with the polyurethane sandwich steel plate for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of external wall system with the polyurethane sandwich steel plate, it is characterized in that, comprise gypsum plank, steel post, glass fibre cotton, polyurethane sandwich steel plate, outer decorative layer, described gypsum plank, steel post link into an integrated entity with the polyurethane sandwich steel plate respectively, described glass fibre cotton is located between gypsum plank and the polyurethane sandwich steel plate, and described outer decorative layer is located on the external surface of polyurethane sandwich steel plate.
Described steel post is the light gauge cold-formed steel shape column.
Described polyurethane sandwich steel plate passes through the concealed type screw on steel post.
Described polyurethane sandwich steel plate is made up of a plurality of polyurethane sandwich steel plates unit, and adjacent polyurethane sandwich steel plate connects by hidden discount between the unit.
Compared with prior art, the utlity model has following advantage:
1, water resistance is good, compares traditional cold bending thin wall steel external wall system, and the concealed screw of polyurethane sandwich steel plate connects and the mode of hidden discount overlap joint can effectively prevent rain leakage;
2, high insulating effect, cold bending thin wall steel external wall system have double action stressed and insulation concurrently, and stress performance is good, and heat insulation property is better.
3, convenience quick for installation, short construction period, comprehensive benefit is good, has good superiority of effectiveness.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 2, a kind of external wall system with the polyurethane sandwich steel plate, comprise gypsum plank 1, steel post 2, glass fibre cotton 3, polyurethane sandwich steel plate 4, outer decorative layer 5, described gypsum plank 1 is connected with the inner surface of polyurethane sandwich steel plate 4 by steel post 2, described glass fibre cotton 3 is located between gypsum plank 1 and the polyurethane sandwich steel plate 4, and described outer decorative layer 5 is located on the external surface of polyurethane sandwich steel plate 4.
Described steel post 2 is the light gauge cold-formed steel shape column.Described polyurethane sandwich steel plate 4 passes through the concealed type screw on steel post 2.Described polyurethane sandwich steel plate 4 is made up of a plurality of polyurethane sandwich steel plates unit, and adjacent polyurethane sandwich steel plate connects by hidden discount between the unit.