Air pressure air-tight door (window) of granary

Abstract

The invention discloses an air pressure air-tight door (window) of a granary, which is an air-tight door (window) for a granary. During grain fumigated disinfestation or controlled atmosphere storage, the door (window) needs to be reliably closed. According to the invention, an air pressure closure structure is adopted, four inner right angles of a granary door (window) frame are made into a transition circular arc (7), and four outer right angles of a door (window) leaf are made into a transition circular arc (8); grooves (13) are formed in side faces of the door (window) leaf; annular air-tight airbags (4) are arranged in the grooves; for a double swing door (window), a detachable circular arc transition triangle body (11) is mounted in the middle on two upper and lower horizontal frames of the door (window) frame; the circular arc radius of two arc sides of the triangle body (11) is equal to that of the transition circular arc (7) at four corners of the door (window) frame. The door / window is closed in place, the airbags (4) are pressurized and inflated, and the airbags are expanded to press the door (window) frame, the circular arc transition triangle body and the grooves can be closed. When the door / window does not need to be closed, the circular arc transition triangle body (11) can be detached and then is mounted when closure is needed.

Description

technical field [0001] The invention relates to an airtight door and an airtight window used in a grain storehouse, in particular to an airtight airtight door and an airtight window of a grain storehouse which realize airtightness by inflating and pressurizing an airtight airbag. Background technique [0002] Modern high and large one-story warehouses are the mainstream facilities for grain storage in my country. Standard grain warehouses are generally 60 meters long, with a span of 24-30 meters and a grain height of 6 meters. Or exhaust fan windows, exhaust fans are installed in the exhaust fan windows to discharge the hot air from the granary; there are vents on the front and rear walls about ten centimeters above the ground in the granary, and the vents are connected to the inside of the granary by punching holes with steel plates. The semi-circular pipe formed by the blower can be connected to the vent to blow air into the granary for drying grain or reducing the temperatu...

AI Technical Summary

Problems solved by technology

[0003] At present, the doors and windows of the granary are sealed by installing rubber sealing strips around the door or window sash, and the door frame or window frame is sealed by the elasticity of the rubber. Due to the deformation of the rubber sealing strip, this sealing method cannot actually achieve the required sealing effect. In order to solve the problem Relying on the sealing of rubber strips can not meet the airtight requirements of the status quo, so a pressure groove is installed on the wall around the inside of the window or door, and the plastic film is embedded in the pressure groove for secondary sealing. Because the installation pressure groove is easy to deform and the wall cannot be dense. In combination, the degree of compaction of the plastic film cannot be guaranteed, which will still cause the granary to fail to meet the airtightness requirements. The poor sealing performance of the granary windows and doors has become a bottleneck for the improvement of the granary's sealing performance.

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