Trough type water culture device with water draining and residue filtering mechanism

Abstract

The invention discloses a trough type water culture device with a water draining and residue filtering mechanism. The trough type water culture device comprises a water trough with a water inlet and awater outlet, the water draining and residue filtering mechanism and a water return pump. The water draining and residue filtering mechanism comprises a first pipeline coaxially arranged in the wateroutlet in a penetrating manner and a second pipeline communicated with the first pipeline and located in the water trough; the second pipeline is arranged in the water trough in a manner of rotatingaround the axis direction of the first pipeline, and the water inlet end of the second pipeline moves up and down along with the rotation of the second pipeline; and the water draining and residue filtering mechanism further comprises a first residue filtering tank communicated with the first pipeline, a second residue filtering tank communicated with a water return pump, a third pipeline with thetwo ends communicated with the first residue filtering tank and the second residue filtering tank respectively and filtering cotton arranged in the second residue filtering tank, and the water draining end of the third pipeline and the water inlet end of the water return pump are located at the upper side and the lower side of the filtering cotton respectively. According to the trough type waterculture device, the liquid level height can be controlled, the water flow circulation speed can be reduced, solid residues can be prevented from entering the water return pump, and the service life ofthe trough type water culture device is prolonged.

Description

technical field [0001] The invention relates to a tank-type hydroponic device with a mechanism for draining and filtering residue. Background technique [0002] In the trough-type hydroponic device, the drain of the tank is directly used for drainage, and the drain is transported to the water inlet of the tank through an external return pump to realize the circulating water supply to the tank. This drainage structure has the following disadvantages: (1 ) The height of the liquid level in the tank cannot be controlled or can only be fixed at the height of the drain outlet. For planting cups of different heights, the liquid level cannot be effectively controlled to make it higher than the bottom of the planting cup, resulting in excessive water supply to the roots of the plants in the planting cup or Insufficient; (2) The drainage is too fast, and the water circulation speed too fast will have a certain impact on the growth of crops; (3) The solid residue in the drainage enter...

AI Technical Summary

Problems solved by technology

[0002] In the trough-type hydroponic device, the drain of the tank is directly used for drainage, and the drain is transported to the water inlet of the tank through an external return pump to realize the circulating water supply to the tank. This drainage structure has the following disadvantages: (1 ) The height of the liquid level in the tank cannot be controlled or can only be fixed at the height of the drain outlet. For planting cups of different heights, the liquid level cannot be effectively controlled to make it higher than the bottom of the planting cup, resulting in excessive water supply to the roots of the plants in the planting cup or Insufficient; (2) The drainage is too fast, and the water circulation speed will have a certain impact on the growth of crops; (3) The solid residue in the drainage enters the return pump, which affects its service life

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