Civil air defence door leaf with geometric composite structure and manufacturing method

[0048] Example one

[0049] Basic as attached Figure 1-3 Shown: a geometric composite structure civil air defense door leaf, including door core structure 1, door leaf outer frame 2, upper panel 3 and lower panel 6, door core structure 1 is a continuous geometric structure of the skeleton structure, door leaf outer frame 2. The upper panel 3 and the lower panel 6 are respectively fixed with the door core structure 1 to form a civil air defense door leaf. The geometric structures are regular triangles, squares, regular hexagons, trapezoids, rhombuses, perfect circles and ellipses. Such as Figure 4 As shown, the door core structure 1 is welded by several equilateral triangles. Such as Figure 5 As shown, the door core structure 1 is formed by welding several squares. Such as Image 6 As shown, the door core structure 1 is formed by welding several diamonds. Such as Figure 7 As shown, the door core structure 1 is formed by welding several regular hexagons. Such as Picture 9 As shown, the door core structure 1 is welded by a number of isosceles trapezoids. Such as Picture 10 As shown, the door core structure 1 is welded with several perfect circles.

[0050] Example two

[0051] Basic as attached Figure 1-3 As shown, a civil air defense door leaf with a geometric composite structure includes a door core structure 1, a door leaf outer frame 2, an upper panel 3, and a lower panel 6. The door core structure 1 is a skeleton structure composed of a continuous geometric structure, and the door leaf outer frame 2. The upper panel 3 and the lower panel 6 are respectively fixed with the door core structure 1 to form a civil air defense door leaf. The geometric structure is composed of a number of first profiled parts or a combination of several steel strips 4 and a second profiled part; the first profiled part and the second profiled part are both cold-formed profiled parts, the first profiled part It is a continuous broken line structure 5 or a continuous corrugated structure 7, the second profiled part is a continuous broken line structure 5; the steel strip 4 is a straight structure. Several first profiled parts can form a continuous geometric structure with each other, and the second profiled part combined with the steel strip 4 can also form a geometric structure.

[0052] Such as Figure 4 As shown, the door core structure 1 is composed of Picture 11 The several steel strips 4 shown are welded with the broken line structure 5 (second profiled part).

[0053] Such as Figure 5 As shown, the door core structure 1 is composed of Picture 12 The several continuous broken-line-shaped structures 5 (first profiled parts) shown are welded.

[0054] Such as Image 6 As shown, the door core structure 1 is composed of Figure 13 The several continuous broken-line-shaped structures 5 (first profiled parts) shown are welded.

[0055] Such as Figure 8 As shown, the door core structure 1 is composed of Figure 14 The several continuous broken-line-shaped structures 5 (first profiled parts) shown are welded.

[0056] Such as Picture 9 As shown, the door core structure 1 is composed of Figure 15 The several steel strips 4 shown are welded with the broken line structure 5 (second profiled part).

[0057] Such as Picture 10 As shown, the door core structure 1 is composed of Figure 16 The shown several continuous corrugated structures 7 (first profiled parts) are welded together.

[0058] Example three

[0059] A method for manufacturing a civil air defense door leaf with a geometric composite structure includes the following steps:

[0060] (1) Manufacturing geometrical pipes: prepare round pipes, which are made into geometrical pipes by cold drawing, such as regular triangles, squares, trapezoids, rhombuses, regular hexagons, regular circles or ellipses;

[0061] (2) Manufacturing geometrical structures: cutting geometrical pipes to form cylindrical geometrical structures;

[0062] (3) Manufacturing door core structure 1: Weld several geometric structures into a sheet-shaped door core structure 1 (such as Figure 4 , 5 , 6, 7, 9, 10);

[0063] (4) Manufacture the frame of the civil air defense door leaf: prepare the door leaf frame 2 and weld the prefabricated sheet-shaped door core structure 1 into the door leaf frame 2 to form the air defense door leaf frame (such as image 3 );

[0064] (5) Manufacture the preliminary civil air defense door leaf: prepare the upper panel 3 and the lower panel 6, superimpose the prefabricated air defense door frame on the lower panel 6, and weld the civil air defense door frame and the lower panel 6 from the inside; Anti-rust coating treatment, and install the built-in locking mechanism of the civil air defense door leaf; finally the upper panel 3 is welded to the upper side of the civil air defense door leaf frame to form a preliminary civil air defense door leaf (such as figure 1 , figure 2 );

[0065] (6) Install relevant accessories on the preliminary air defense door leaf, and then paint to form the final air defense door leaf.