VENTILATION VALVE FOR PLENUM VENTILATION Russian patent published in 2020 - IPC F24F13/18 E06B7/02 

FIELD: ventilation and air conditioning.

SUBSTANCE: present invention relates to plenum ventilation devices. Ventilation valve of plenum ventilation includes a hollow body and a movable unit for regulating the air flow. Hollow valve body comprises upper and lower flat bases interconnected by end walls and rear side wall. On the front side the housing is open, and on the rear side wall of the housing there is a longitudinal cutout. Air flow regulating unit includes movable plate and driven gate adjoining to each other by flat surfaces. Shutter on adjacent flat surface is provided with projections, and plate on mating flat surface has inclined guide slots. Crosswise size and height of flap ledges correspond to width and depth of slots of the plate. Upper and lower flat bases of the housing are made with longitudinal recesses throughout the length of the bases from the front side of the housing. Lid on lateral side is equipped with handle-latch, which is made with possibility of being inserted into longitudinal slot on rear side wall of housing. Plank and shutter on adjacent flat surfaces and on opposite surfaces of their contact with housing are equipped with antifriction projections. On the side of the plank opposite its lateral side with the latch handle there are cuts in the lath enclosing the guide slots on the part of their length, at that the sections of the plank with the guide slots are made with the possibility of elastic deformation under the applied force.

EFFECT: higher flexibility of the plenum valve control unit with simultaneous increase of the device movable parts interaction elasticity, as well as expansion of the ventilation valves range.

4 cl, 4 dwg