COLLAPSIBLE GREEN HOUSE (VERSIONS) Russian patent published in 2011 - IPC A01G9/14 

FIELD: agriculture.

SUBSTANCE: green house comprises a frame, which has side surface formed by arcs connected to each other on top in pairs and made of parts, and by longitudinal parts, end structures with doors and air vents, a clear coating, closing units. All parts of the frame have paint-and-varnish or other protective coating against corrosion and are made of a thin-sheet cold-rolled steel section bar of hat-shaped section. The steel section bar of hat-shaped section has a middle shelf, inclined side walls and bends of edges outside. According to the first version, all outer parts of the side surface of the frame are inverted with middle shelves of the section bar to the outside. Arcs form a lancet structure, and bends of the section bar are arranged in the form of side shelves. All parts of arcs are connected to each other with an overlap and are fixed by means of helical joints. Arcs are connected to longitudinal parts by means of fixation of side shelves of a longitudinal part by a helical joint on the side shelf of the arc. In the ridge part arcs are connected to each other and are covered with an angular ridge section bar fixed with a helical joint. Arcs are equipped with cross braces in the form of chords. Arcs in the area of fixation with upper parts of cross braces are connected to each other in pairs by means of ties. Middle parts of cross braces are connected to their arcs by means of radial ties. Cross braces are connected to arcs by deepening of end sections of the section bar into the section bar and are fixed by a helical joint along inclined side walls of the section bars. Radial ties are connected to arcs by means of deepening of end sections of the section bar into the section bar, for this purpose there are cuts of the section bar middle shelves at connected ends of radial ties. Radial ties are connected to cross braces by means of outside covering of their section bar with end sections of radial ties, for this purpose there are cuts of the section bar middle shelf at connected ends of radial ties. Radial ties are fixed with arcs and cross braces by means of a helical joint along inclined side walls of the section bars. The second version of a green house differs from the first one by the fact that all outer parts of the side surface of the frame are inverted with middle shelves of the section bar to the inside. Cross braces are connected to arcs by outside covering of arc section bars with end sections of the cross brace section bars and are fixed by a helical joint along inclined side walls of the section bars. Radial ties are connected to arcs by means of outside covering of arc section bars by end sections of tie section bars, for this purpose at the ends of radial ties connected to them there are cuts of the middle shelf of the section bar, the radial ties are connected to cross braces by deepening of end sections of the section bar into the section bar, and are fixed by means of the helical joint along inclined side walls of section bars.

EFFECT: invention provides for simple design, more rational usage of protected volume and universality of frame usage - both for film and for polycarbonate.

4 cl, 14 dwg