JPH01320943A - Hydroponic unit - Google Patents

Abstract

PURPOSE:To provide the title unit so designed that when a crop culture is to be made while circulating a nutrient solution in a hydroponic unit, the solution tank is equipped with a filter net for filtering said nutrient solution, thereby retaining the circulation of said solution smoothly for a long period and keeping the culture of e.g. vegetables favorable. CONSTITUTION:A nutrient solution stored in a solution tank 5 in a hydroponic unit is pumped and allowed to flow down on a hydroponic bed; during which the nutrient is absorbed by seedling roots held on a planting panel located on said bed, thus carrying out a hydroponic culture. Thence, an excess of said nutrient solution on the hydroponic bed is made to flow down and returned to the tank 5 while filtering the solution off the impurities such as root hairs and algae contained in said solution through a filter net 6 equipped on the way, thus putting an impurity-free nutrient solution to recycling use.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a hydroponic cultivation device for hydroponic cultivation of vegetables, flowers, and the like.

Background Art and Problems to be Solved by the Invention In hydroponic cultivation, in which crops are cultivated while circulating a nutrient solution in a hydroponic cultivation device, root hairs grow or break during cultivation. It also produces algae. These root hairs, algae, etc. flow and are sucked into the pump during circulation, making it easy to get clogged.

Means for Solving the Problems This invention uses a pump fil to pump up the stored nutrient solution to the upper hydroponic bed (2) and let it flow down the top surface of the hydroponic bed (2). 2) While cultivating the vegetables (4) etc. held on the upper planting board (3), a filter net (5) is placed in the tank (5) which receives the surplus nutrient solution and filters the nutrient solution. 6) A hydroponic cultivation device is configured.

Functions and Effects of the Invention A nutrient solution is stored in the solution tank (5), and the nutrient solution in the solution tank (5) is pumped up using a pump (11) to spread the nutrient solution to the hydroponic bed above the solution tank (5). (2) Allow the upper surface to flow down. While flowing down the upper surface of this hydroponic bed (2), nutrients are absorbed by the seedling roots held in the upper planting board (3) and hydroponic cultivation is carried out. floor (2)
The remaining nutrient solution is returned to the lower tank (5), but while passing through the filter net (6), root hairs, algae, etc. are filtered out and sent to the pump (1). Only the nutrient solution that does not contain foreign matter such as root hairs is circulated. For this purpose, the pump (1)
The circulation of the nutrient solution can be maintained smoothly over a long period of time, and the overflow from the plants (31, etc.) can be reduced, and the cultivation of vegetables (4) etc. can be maintained in good condition.

Example In FIG. 1, the liquid tank (5) is box-shaped and has an appropriate depth, and the hydroponic bed (2) and planting board (3) are placed on the upper side at appropriate intervals above and below. overlapping. A motor chamber (8) containing a motor (7) is provided at the negative end of the hydroponic bed (2), and the liquid tank (5) is rotated by the motor (7).
) is provided, and the nutrient solution pumped up by this pump (1) is ejected from the upper end spout (11) of the pipe (9), and a spherical transparent cover ( 11) The reflected flow flows down to the lower surface, is received by the lower saucer 0δ, and is caused to flow down from this saucer 0 to the width of one end of the hydroponic bed (2). A flow outlet (1) is provided on the side leading into the lower liquid tank (5), and a weir of an appropriate height is installed at the edge of this flow outlet (13 side hydroponic bed (2)).
4 is provided, and a nutrient solution is stored at a predetermined depth on the hydroponic bed (2) to facilitate absorption of nutrients by the root hairs of the vegetables (4).

A planting hole 09 is provided in the planting board (3), and in each of these planting holes 1! The growing root hairs reach the upper surface of the hydroponic bed (2). (I71 is a sap port for replenishing the nutrient solution.

The filtration net (6) is removably installed near the outlet (1'3) of the liquid tank (5) so as to partition the entire width.
The nutrient solution passes through this filter net (6) and flows toward the pump (11). (11 is an electric heater, and the liquid tank is located on the pump (9) side than this filter net (6). (5) Provided at the bottom,
Heat and maintain the nutrient solution at a specified temperature.

Figures 2 and 3 show the filter net (6) in the form of a basket, removably provided at the bottom of the outlet (13), and hooks (
1cJC'[), and is engaged and held at the peripheral edge of the flow outlet (2) of the hydroponic bed (2).

Figures 4 to 7 show the configuration of the flow outlet (13).
This is designed to eliminate the sound of the nutrient solution flowing down the flow port 03 to the lower liquid surface. Of these, Figure 4 shows the weir (
An inclined plate 31) is provided which slopes the lower side of this weir 4 further toward the lower side of the hydroponic bed (2) from the side opposite to (2). Figures 5 and 6 show an example in which a sloping plate () which is inclined on the opposite side to that in Figure 4 is provided, and of these, the 6th
In the diagram, is it a tilted board? A guide plate station parallel to 1) is provided to form a slit-like downstream passage. In FIG. 7, a step-shaped mat 1244 is provided at the outlet 03, and a sponge-like mat m (24(c)) receives the flowing water, buffers it, and muffles the sound.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway perspective view, Fig. 2 is a side sectional view showing a partially separated embodiment, and Fig. 3 is a partially cutaway perspective view. Figures 4 to 7 are partially separate!
It is a side sectional view showing an example. In the figure, reference numeral 111 indicates a pump, (2) a hydroponic bed, (3) a planting board, (4) vegetables, (5) a liquid tank, and (6) a filter net.

Claims (1)

[Claims] The nutrient solution to be stored is pumped up to the upper hydroponic bed (2) using a pump (1), and is allowed to flow down the top surface of this hydroponic bed (2) to the planting plate (3) above this hydroponic bed (2). ) Hydroponic cultivation in which a filter net (6) is installed to filter this nutrient solution in a liquid tank (5) that receives the surplus nutrient solution while cultivating vegetables (4) etc. held in the tank. vessel.