1. The frame is collapsible, containing two end arched sections located mutually parallel at some distance from each other and interconnected by horizontal connecting elements of the frame, at least one end arched section contains a door pivotally mounted in the doorway, while the doorway is formed by two vertically arranged racks of the doorway connected to the upper and lower cross-members of the doorway, the frame elements are made of metal profile rectangular th or square cross-section with nodal connections frame members, characterized in that the door comprises two flaps, with the uprights of the door opening connected by vertical elements with external arched end sections horizontal members and the horizontal frame members connecting the vertical elements are fixed karkasa.2. The frame is collapsible according to claim 1, characterized in that the nodal connection is made in the form of a butt joint of two frame elements, each of which from the angle between the frame elements contains a slit of / width and a length determined by the value of the angle between the frame elements, wherein the ends of the frame element contain one or two through holes for bolting. 3. The frame is collapsible according to claim 2, characterized in that at an acute angle of mutual arrangement of the frame elements, their ends are oblique, and the angle of the oblique ends is determined by the angle between the frame elements. 4. The frame is collapsible according to claim 1, characterized in that the nodal connection is made buttПолезная модель относится к области строительства и может быть использована в промышленных, сельскохозяйственных, транспортных и бытовых металлоконструкциях, а именно при изготовлении теплиц, парников, вольеров, навесов и козырьков. Новизна полезной модели заключается в использовании в качестве узла только основного материала элементов каркаса и стандартных металлоизделий для фиксации элементов в необходимом положении. Полезным техническим эффектом от исп
