Process and device for a mechanical release system for prestressed valves

摘要

A first pre-tensioned, guided surface (1) acts against at least one roller (2) with a force (P), and the roller transfers this force to a second surface (3) movable concentric or parallel to the first surface. During movement of the second surface the roller rolls over both surfaces until it stops in an edge zone of the first surface, where the parallelity is translated into divergence achieved exclusively with roller friction. The divergence becomes greater than the roller friction, so that the roller is ejected and the two surfaces move towards each other. Movement of the first surface towards a counter-surface or the second surface actuates the release mechanism. Independent claims are also included for (a) the use of the release mechanism method in fire extinguishers used to put out dust and/or gas explosions, as well as fires in industrial installations, and (b) the release mechanism.