SU93321A1 - Automatic liquid dispenser - Google Patents

Description

Existing liquid dispensers do not have remote control and infinitely variable control. They do not provide sufficient dosing accuracy and ease of operation.

The proposed device has a remote control for continuously changing the number of doses delivered per unit of time.

The control is carried out with the help of a special sensor consisting of a reversible reactive synchronous motor with a rotary stator, a fixed and movable stop system and a switch triggered by the movement of the stator when the shaft reaches the motor during rotation of one of the boundaries stops.

FIG. 1 is a schematic diagram of the dispenser; in fig. 2 - time sensor circuit.

The dispenser consists of a float chamber 1 in which a constant level of liquid is dispensed, a metering cup 2 with a valve 3 actuated by lever 4 by an electromagnet 5, and a time sensor 6 controlling the valve operation.

Pipe 7 serves to connect the device to the supply line.

A capillary tube 8 is inserted into the metering cup 2. Papatnenie glass is produced from the float chamber to the level of the lower end of the capillary tube, after which the liquid fills only this tube, rising to the level of the liquid installed in the float chamber. The discharge pipe 5 serves to drain the metered liquid.

The time sensor has two jet synchronous motors assembled in one unit with a common shaft 10. The stators 11 and 12 of the engines are rigidly connected to each other. A lever 13 is fastened to the motor shaft, which rotates with the shaft within the central angle limited by the fixed 14 and movable 15 stops. This angle determines the time of rotation of the shaft from one extreme position to the other and can be set in the range from 0 to 360 by moving on a scale 16 the movable stop 15.

The smallest angle is determined by the time required for filling and dispensing glass or draining a measured dose of liquid.

When the lever is stopped by one of the stops, the stator, which is driven by itself, is the engine torque, turns in the opposite direction; In this case, the plug 17 connected to the stators acts on the switch 18, which turns off the winding of the operating stator and turns on the winding of the other stator, thereby changing the direction of rotation of the motor shaft.

Parallel to the winding of one of the stators, the electromagnet winding of the metering device of the dispenser is turned on, thereby achieving precise control over the length of time between successive doses of doses.

Subject invention

An automatic liquid dispenser, made in the form of a dispensing glass fed from a float chamber equipped with a capillary tube, and a time sensor controlling the dispensing glass solenoid valve, characterized in that applied reverse reactive synchronous motor, the angle of rotation of the axis of which is set depending on the required intensity of dosing and in the final The turning and turning is performed by switching on and off the solenoid valve of the dosing cup.

FIG. 2

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