APPARATUS FOR REGULATING TEMPERATURE AND WATERING OF PLANTS IN GREENHOUSE Russian patent published in 1997 - IPC

FIELD: agriculture. SUBSTANCE: apparatus has hydraulic cylinder with stem and lever, whose axis of rotation is attached on hydraulic cylinder by yoke. Other end of lever opens greenhouse transom by means of tie-rod, when temperature in greenhouse is increased and cylinder stem is lifted. Lever and transom are lowered by weight, when temperature in greenhouse is decreased. Hydraulic cylinder lever is kinematically connected with control valves through flexible connecting members to provide filling of dosing vessel and water plants. Valves are made in the form of clips with T-shaped plate having compression spring. Plate is received within slots of clips. Plate and compression spring allow flexible hose to be pinched and, as a result, flow of water through flexible hose to be cut off. Apparatus allows dosing vessel to be filled with water, when temperature in greenhouse is increased and transom is open, and watering of plants with water warmed during the whole day upon decrease of air temperature in greenhouse and closing of transom to be provided (it happens mostly in the evening or upon abrupt cooling). EFFECT: increased efficiency, wider operational capabilities and improved plant growing conditions. 3 dwg