GATE VALVE Russian patent published in 2023 - IPC B22D41/22 

FIELD: metallurgy.

SUBSTANCE: slide gate contains a hinged mounting frame (1) and a body, a carriage with guides (5, 6) parallel to the longitudinal axis of the gate, and a moving mechanism (4), fixed (7) and movable (8) fire-resistant plates with holes, installed respectively in the mounting frame and carriage, pressed against each other by traverses (9) placed in the housing containing balancers and support rollers, and spring blocks (12). On the carriage on the side where the movable plate is placed in it, upper guides are installed, on which protrusions with bevels are made, and on the side opposite to the side where the movable plate is placed, lower guides (6) are installed on the carriage, on which the bevels are made. The beginning of the bevel on the lower guide coincides with the beginning of the bevel on the protrusion of the upper guide. The housing contains four squeezing rollers, designed to move smoothly along the surfaces of the guides.

EFFECT: increased durability of the slide gate elements and assemblies, increased reliability of its operation due to the smooth installation of the movable carriage when moving it to the service position.

2 cl, 4 dwg, 1 ex