FIELD: construction industry.
SUBSTANCE: invention relates to construction and can be used to create stairs, including raised floors made of profiles, and is aimed at creating a quick-disassembly and easy-to-install structure in which it is possible to adjust the slope of the steps. These technical effects are achieved by a ladder consisting of at least one step, formed by a platform that is attached to four guides, in which at least the first and second guides are made of U-shaped profiles with edges bent into the groove, in the specified groove of the U-shaped profile of the first and second guides, locking devices are mounted to prevent the movement of the locking devices without applying force, the specified locking device consists of a nut and an element, ensuring the nut is pressed to the inner side of the U-shaped profile edges bent into the groove and creating tension in the specified connection due to the elasticity of the material from which it is made, elements are attached to the specified locking devices that ensure the attachment of the step to the first and second guides of the platform.
EFFECT: simple and convenient ladder design is proposed.
5 cl, 1 dwg
