SHUTOFF-STARTING DEVICE OF THE GASEOUS FIRE-EXTINGUISHING INSTALLATION Russian patent published in 2006 - IPC A62C37/00 

FIELD: chemical industry; the shutoff-starting devices of the gaseous fire-extinguishing installations.

SUBSTANCE: the invention is pertaining to the shutoff-starting devices used in the gaseous main lines, predominantly in the fire-fighting equipment and is intended for utilization in gaseous fire-extinguishing installations. The shutoff-starting device contains the body, in which there are the input and output openings of the gaseous main lines. In the area of the body outlet opening there is the mounted gate connected to the spring-loaded piston mounted with the capability of motion in the working chamber of the body. The device has the tool for opening and shutting the gate, which contains two mounted in the body two-position spring-loaded slides connected with the drive of their relocation. The body and the two-position spring-loaded slides have and-or form the system of the holes forming in the relocated position of the first slide and in the initial position of the second slide the channel of feeding of the gas from the indicated working chamber into the aerosphere, and in the relocated position of the second slide - the channel of the gas feeding from the inlet opening into the working chamber. The body has the cylindrical cavity, in which there is the fixed sleeve with the indicated working chamber forming the axial passage, and the sliding device overlapping the open side of the sleeve and arranged on the side of the inlet opening of the body. At that the slides are mounted in the body mainly in the transversal position with respect to the sleeve. The sleeve also has the hole for the gas feeding to the butt surface of the piston is carried out. The body has two counter-located sleeves, in which there are mounted along the single axis the indicated spring-loaded slides. At that the indicated sleeves have and-or form through the grooves the indicated system of the holes. At that the first slide has and-or forms through the grooves the holes system for shaping the channel of the gas feeding from the working chamber into the aerosphere, and the second slide has and-or forms through the grooves one system of the holes for formation of the channel for the gas feeding from the inlet opening into the working chamber. The technical result of the invention is the improved operational reliability of the device without reduction of the speed of the slides reaction, minimization of the drive power and the increased serviceability.

EFFECT: the invention ensures the improved operational reliability of the device without reduction of the speed of the slides reaction, minimization of the drive power and the increased serviceability.

9 cl, 3 dwg