Watering device

Abstract

The invention relates to a watering device. The watering device comprises a casing and a water pump located in the casing, wherein a water inlet, a water outlet and a water outlet cavity located in the water pump to communicate the water inlet with the water outlet are formed in the front end of the water pump, a communication part communicating with the outside is arranged at the front end of thewater pump, the watering device also comprises an end cover assembly covering the periphery of the communication part, a flow channel enabling the water outlet cavity to communicate with the outsidethrough the communication part is formed in the end cover assembly, and the flow channel is kept in a normally closed state and is opened when the pressure in the water outlet cavity is smaller than atmospheric pressure so as to eliminate the siphonic effect; meanwhile, the watering device is provided with a water pressure sensor to transmit a water pressure signal to a circuit board to adjust water pressure, thus, water flow is enabled to be stabilized, and irrigation quality is improved; besides, a pressure relief valve is arranged to avoid damage of the water pump, a pipeline and the sensor due to high-pressure water flow at the beginning of start and the risk of port tripping.

Description

Technical field [0001] The invention relates to the technical field of gardening tools, in particular to a watering device. Background technique [0002] Most traditional watering devices use manual methods to water the nursery, which takes a lot of time and consumes physical energy. For this reason, automatic watering devices have appeared on the market. The automatic watering devices include a built-in water pump. The water in the water storage bucket flows to the nursery through the water inlet of the water pump-the water pump cavity-the outlet of the water pump, saving time and effort. [0003] However, when the existing automatic watering device is in use, the water inlet pipe of the watering device needs to be extended into the water storage bucket. If the watering position is lower than the liquid level of the water storage bucket, in this case, when the automatic watering device stops working, due to watering The gravitational action of the water in the outlet pipe of the ...

AI Technical Summary

Problems solved by technology

[0003] But when the existing automatic watering device is in use, the water inlet pipe of the watering device needs to be stretched into the water storage bucket. If the watering position is lower than the liquid level of the water storage bucket, in this case, when the automatic watering device stops working, due to The gravity of the water in the outlet pipe of the water device will cause a siphon effect. If it is not treated in time, the water in the outlet pipe will continue to flow until the water in the storage bucket runs out, which will easily cause excessive watering and waste water resources.

[0004] At the same time, the existing automatic watering device cannot control and adjust the water pressure in the water pipe, which will easily cause uneven water flow in the water outlet pipe and affect the watering quality.

[0005] In addition, the existing watering device will form a high-pressure water flow at the moment of starting to work, and the high-pressure water flow will cause an impact on the water pump, causing damage to the parts of the water pump and affecting the service life. The number of flowers and plants that can be watered at a time is small, which cannot meet the needs of users

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