| 摘要 |
FIELD: agriculture. ^ SUBSTANCE: prefabricated hothouse comprises a frame formed with arched structures, a light-transparent fence, sealing units. According to the first version, arched structures are made as trusses. Upper and lower belts of trusses are made of arches. Arches are connected with each other by serially connected links, being simultaneously chords of outer arches and tangents of inner arches. Trusses are equipped with radial ties that connect units of links and one belt arches connection with arches of the other belt. All arched parts of the frame and longitudinal parts are inverted outside with the middle shelves of the profile. Bends of the frame parts profile are arranged as side shelves of the profile. Parts of arches are connected with each other with an overlap, for this purpose there is a longitudinal slot cut of the middle shelf along the overlapping length, and are fixed along the side shelves and inclined side walls with a helical joint. Outer arches are fixed with the longitudinal parts with the helical joint of profile side shelves. The links are connected with outer arches by deepening of end sections of the profile into the profile and are fixed by the helical joint along the inclined side walls of profiles. The links are connected with inner arches by embracing the inner arch profile with the link profile and are fixed by the helical joint along the inclined side walls of profiles. Radial ties are connected to the outer arches by deepening of end sections of the profile into the profile, for this purpose there are cuts of the side profile shelves at ends of radial ties connected to them. Radial ties are connected to the inner arches by embracing of their profile at the outside with end sections of radial ties, for this purpose there are cuts of the middle profile shelf at ends of radial ties connected to them. Radial ties are fixed to arches and links by means of the helical joint along inclined side walls of profiles. A hothouse according to the second version differs from the first version by the fact that all arched parts of the frame and longitudinal parts are inverted inside with the middle shelves. The links are connected with outer arches by embracing the outer arch profile with the end section of the link profile and are fixed by the helical joint along the inclined side walls of profiles. The links are connected with inner arches by deepening the link profile into the inner arch profile and are fixed by the helical joint along the inclined side walls of profiles. Radial ties are connected to the outer arches by embracing of their profile at the outside with end sections of radial ties, for this purpose there are cuts of the middle profile shelf at ends of radial ties connected to them. Radial ties are connected to the inner arches by deepening of end sections of the profile into the profile, for this purpose there are cuts of the side profile shelves at ends of radial ties connected to them. ^ EFFECT: invention makes it possible to produce a hothouse of various widths and makes it possible to install a second layer of a light-transparent cover. ^ 2 cl, 10 dwg |
