PLANT FOR AUTOMATIC WATERING OF PLANTS Russian patent published in 2019 - IPC A01G27/00 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of crop production and can be used for watering greenhouses and gardens. Apparatus includes a metering tank with outlet (6) for draining water into a water distribution system, float (19) with rod (18) with gate valve (20) for covering the drain opening of branch (6) and conduit (13) with shutoff valve (12) for water supply. Dosing tank is equipped with vertical wall (8), discharge siphon (5) and air tube (27) with check valve (17) for air discharge. Siphon (5) is installed in the upper part of wall (8) separating the metering tank into two chamber sections, one of which (3) is sealed with siphon (5) and branch pipe (6) for draining water into the water distribution system. Plant also contains adjusting device made in the form of one return air valve (17) compactly installed for air outlet with rod (18) of float (19). Device is installed at the specified mark of actuation of gate valve (20) above the outlet branch pipe (6) for water drainage into the water distribution system with the possibility to change its moment of force. Through air hole (21) located under cover has limitation (23) in form of stop of upper position at floating float and provides free air outlet through air tube (24). Siphon (5) start-up mechanism is made up of fluid level sensor tube (16) and ejector (15) connected to each other. Tube-sensor (16) is connected on one side with siphon (5) suction part through the hole made in wall (8). On the other side it is connected by means of ejector with drain part of siphon (5). Siphon (5) is located in section-chamber through its inlet branch pipe. Lower end of tube-sensor (16) is placed in tight section-chamber (3) above the level of branch pipe (6) for draining water into the system, and the end of the drain part of siphon (5) is below its level.

EFFECT: simplified design and increased reliability of the device in operation.

4 cl, 3 dwg