D When the door is fully opened, the maximum opening angle is greater than 110°
after 1000 open/close cycles . The
F door limit device can withstand the static load caused by the door opening and closing caused by the wind of 22m/s in the limit state, without mechanical damage or functional failure.
2. Ventilation window and filter screen design
(1) Weld the stainless steel mesh with a thickness of 1mm and a specification of 16 mesh at the air outlet of the ventilation window, which has the function of preventing the invasion of insects and rodents . The corroded dust-proof net assembly, the dust-proof net component is a filter with a thickness of 10mm and a specification of 30ppi . Let the filter net fold together with the pleated support net , and let the filter be fixed in the aluminum plate frame. The entire dust filter assembly adopts a modular design for easy maintenance.
(2) The air outlet of the fan is designed on the top cover, and the air outlet of the fan is at the edge of the top , so that the rainwater flows down along the louvers, and there is also a secondary structure to prevent rainwater from flowing into the ventilation opening.
3 Connection fastening
(1) Use threaded connections with anti-loosening devices as structural and load-bearing connections. The anchor bolts for fixing the cabinet are hot-dip galvanized bolts. The connection is firm, without leakage or virtual connection;
(2) The rivets or rivet nuts are arranged neatly, without tilting, cracking or loosening. The riveting surface is not dented, deformed or damaged.
(3) The door hinge adopts the inner hinge method.