FIELD: explosion protection methods.
SUBSTANCE: invention refers to protective devices, for example shock absorbers, which are used in the explosive facilities. Single action shock absorber for safety constructions of explosive buildings contains elastic and damping elements, and further comprises the resilient damping breaking element, which is fixed on the support rods to the stop sheets by means of a damping base using the screws. To the damping base coaxial to the rod the single action bushing made of brittle fracture material, for example porcelain is attached by means of screws. Elastic part of the shock absorber is made in the form of at least three leaf springs facing with their convex part towards the axis of the rod, on which there is a threaded portion with a small pitch for fastening the clamping element of a bushing type with the grooves for fixing one of the ends of leaf springs, the other end of which is fixed in the damping base by means of injection polyurethane. Sheets-abutments, which are welded to the ends of the support rods, are made of a combination and consist of a solid base on which three intermediate vibration damping layers are placed: the first layer is made of the dispersible resilient damping material, in which the crumbs may be used, for example, the crumbs of the following materials: rubber, cork, polystyrene, nylon, foamed polymer, as well as crumb of solid vibrating damping materials, for example, such as plasticate of Agat, Antivibrite, Schwim type with the size of crumb fractions of 1.5÷2.5 mm. Second layer consists of knitted elastic synthetic filaments, where the size of cells, which are knitted from elastic synthetic filaments, is 10÷15 % smaller than the crumb fractions of vibration damping materials. Third layer is made of solid damping material, in which sponge rubber, needle-punched material, e.g. "Vibrosil" based on silica or aluminoborosilicate fiber, and nonwoven vibration damping material can be used.
EFFECT: invention increases reliability of operation of explosion-proof devices at emergency explosion at site.
1 cl, 1 dwg
