Solar pneumatic pump automatic watering device

Abstract

The invention discloses a solar pneumatic pump automatic watering device which comprises a pneumatic pump water container, a check valve, a water storage container and a water retaining container. The check valve is used for controlling the water flow direction to form a water inlet pipeline and a water outlet pipeline; air in the pneumatic pump water container expands with heat and contracts with cold to generate air pressure difference to achieve water pumping, water flows in from the water storage container through the water inlet pipeline when the interior of the pneumatic pump water container is in negative pressure, the water flows out to the water retaining container through the water outlet pipeline when the interior of the pneumatic pump water container is in positive pressure, and the pneumatic water pumping process is formed; and the water level in the water retaining container rises to trigger a siphon drainage process, and the water level descends to finish the siphon drainage process. Along with the alternation of day and night, the temperature in the pneumatic pump water container circularly changes in a reciprocating mode, water flow is continuously pushed to flow from the water storage container to the water retaining container, and automatic water pumping, water storage and periodic watering are achieved. The device is simple, practical, free of power consumption, energy-saving, environment-friendly and stable and reliable in operation, and existing resources and wastes can be fully utilized.

Description

technical field [0001] The invention belongs to the field of automatic watering of flowers and other plants, and relates to an automatic watering device, in particular, using solar energy to heat the air in a container, and realizing automatic water pumping, water storage and periodic watering through changes in air pressure generated by thermal expansion and contraction of the air , specifically a solar air pressure pump automatic watering device. Background technique [0002] The growth of green plants is inseparable from sunlight and water. Providing proper light and water according to the law of plant growth is a necessary condition for the normal growth of plants. On sunny days, the intensity of sunlight is high, and the transpiration of plants is enhanced, and more water is consumed; on cloudy days, the intensity of sunlight is low, and the transpiration of plants is weakened, and less water is consumed. The water consumed by plant transpiration mainly depends on the ...

AI Technical Summary

Problems solved by technology

But in real life, due to people's busy work, they go out early and return late, and they can't water for a long time when they travel, which causes the flowers to dry up and wither.

Various automatic drip irrigation and watering equipment have appeared for this reason, wherein CN105104128 (Beijing Forestry University) disclosed on December 2, 2015 a kind of automatic drip irrigation and watering equipment for potted plants, the water storage tank needs to be placed in a high place, and the involved Components such as sensors and controllers need power supply, and the drip irrigation device involved has a complex structure and high production cost. The device cannot simply and effectively solve the problem of watering green plants such as household potted flowers.

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