METERING DEVICE FOR LIQUID SUPPLY Russian patent published in 2019 - IPC G01F11/04 

FIELD: instrument engineering.

SUBSTANCE: invention relates to a metering device for dispensing a liquid supplied in dosed portions from a container with a spout, for example from a bottle made of plastic or polyethylene terephthalate, or from a hose with a spout (drain pipe, neck). Said metering device for dispensing set doses from the spout of a container or pipe is screw-on or fit-in spout (40; 3), equipped with closing cap (41; 1) held on it, while the device is configured to close with a separate lid, which includes metering spool chamber (64) with a variable volume, providing the possibility of filling when filling from empty to full, while metering spool chamber (64) is bounded by two fixed (54; 52; 4; 24) and two movable (60, 61; 5; 15) walls, while closing cap (41; 1) has two parallel oriented side walls (54; 60; 4; 5) of arbitrary shape, extending in the axial direction to the spout, at the same time one wall (60; 5) is movable relative to other (54; 4) in the axial direction towards the tip of closing cap (41; 1), and fixed side wall (54; 4) of closing cap (41; 1) forms bottom wall (52; 24) provided with hole (56) at an angle to its side, facing the container, adjacent to movable side wall (60; 5), while movable side wall (60; 5) forms top wall (61; 15) extending at an angle at its end, facing the bell mouth of the container spout, adjoining stationary side wall (54; 4), while the variable volume, surrounded by all four walls (60; 61; 54; 52; 5; 15; 4; 24) forms metering spool chamber (64), intended for filling with liquid, and at the same time in the maximum extended position of movable side walls (60; 61; 5; 15) in the direction of the bell of the spout of the container, filling opening (45; 3) of upper wall (61; 15) is hermetically closed, wherein the device, when filling the dosing chamber of spool chamber (64) with a liquid, is made to ensure that the dosed liquid passes through gap (57), located outside movable side wall (60), as well as through opening (56) and the filling opening to the outside.

EFFECT: technical result is to provide a simple design that ensures reliable dosing by tilting.

15 cl, 36 dwg