JPS63226225A - Hydroponic apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a hydroponic apparatus for cultivating vegetables and flowers.

BACKGROUND OF THE INVENTION Most conventional hydroponic cultivation devices have a nutrient solution tank 1, as shown in FIG. It consisted of a cultivation tank 2, and the nutrient solution in the nutrient solution tank 1 was pumped up to the cultivation tank 2 by a pump 3, and water, nutrients, and oxygen were supplied to the roots of the plants in the cultivation tank 2.

In addition, there are other systems that foam the nutrient solution, and their contents are disclosed in Japanese Patent Publication No. 50-19454 and Japanese Patent Publication No. 49-2633.
It was as shown in Publication No. 5.

Problems to be Solved by the Invention Among the above-mentioned conventional hydroponic cultivation devices, the one shown in FIG.
When the roots grow thickly in the cultivation tank 2, the flow of the nutrient solution in the cultivation tank 2 becomes noticeably uneven, and the roots of the plants in the areas where the nutrient solution no longer flows will suffer from a lack of nutrients and oxygen. There was a problem.

Also, Special Publication No. 50-19454 and Special Publication No. 49-26
In the case of the example shown in Publication No. 335, the nutrient solution is simply foamed and the surface of the nutrient solution is covered with foam, or the roots are covered with foam created by foaming the nutrient solution; this method causes the foam to stagnate. Easy,
Bubbles stagnate around the roots of the plant, preventing the roots from receiving fresh air.

In other words, there was a problem in that sufficient oxygen was not supplied.

37. It is an object of the present invention to solve these problems of the conventional hydroponic cultivation apparatus described above, and to develop and provide a hydroponic cultivation apparatus with better performance.

Means for Solving the Problems In order to solve the problems of the conventional hydroponic cultivation equipment described above, the present invention adds a foaming agent to the nutrient solution to foam the nutrient solution, and causes the foam to stagnate around the roots of plants. This allows fresh air and nutrients to be constantly supplied almost uniformly to the entire root of the plant by allowing the water to flow without watering.

The method is to foam the nutrient solution by sending compressed air into the aeration pipe within the legs of the foaming vibrator in the nutrient solution tank, and then send the foam through the foaming vibrator into the cultivation tank to fill the nutrient solution inside the cultivation tank. By filling the cultivation tank with bubbles, water, nutrients, and air (oxygen) are supplied to the roots of the plants in the cultivation tank. The foam sent out from the foam pipe has a pressure due to volume expansion when foaming9, and the bubbles in the cultivation tank are constantly replaced with new foam by the bubbles discharged one after another from the foam pipe. become.

Therefore, the roots of the plants are constantly supplied with fresh bubbles, i.e. water, nutrients and air. Since the entire cultivation tank is still filled with bubbles, it can always be supplied almost evenly throughout the tank, even as the roots of the plants propagate.

Function As mentioned above, the bubbles in the nutrient solution in the cultivation tank flow under pressure, so the bubbles in the cultivation tank are constantly updated with new ones, so the roots of the plant are constantly supplied with fresh water, nutrients, and air. Moreover, since the cultivation tank is filled with bubbles under pressure, new water, nutrients, and air can be supplied almost uniformly to the entire plant even if the roots of the plant have multiplied considerably.

EXAMPLE Next, a hydroponic cultivation apparatus which is an example of the present invention will be described with reference to FIGS. 1 and 2.

In the figure, a foaming agent is added to the nutrient solution in the nutrient solution tank 11, and the nutrient solution is foamed by the aeration pipe 13 in the lower part of the foam pipe 12. The bubbles of the foamed nutrient solution are sent into the cultivation tank 14 from the horizontal pipe section at the top of the foam pipe 12. Since this bubble has pressure, a lid 16 is placed over the cultivation tank 14 to prevent it from overflowing to the outside of the cultivation tank 13. Bubbles of the nutrient solution sent into the cultivation tank 14 from the bubble pipe 12 fill the cultivation tank 14 and then returned to the nutrient solution tank 14 from the discharge port 16. When the bubbles of the nutrient solution are sent out from the bubble pipe 12, they have pressure due to the volume expansion during foaming, so the bubbles in the cultivation tank 14 are constantly flowing and are constantly being updated with new bubbles. Therefore, the roots of the plants in the cultivation tank 14 are always covered with new bubbles, and are therefore constantly supplied with fresh water, nutrients, and air (oxygen). Also, cultivation tank 14
The inside is filled with bubbles under pressure, so even if the plant's roots multiply, new bubbles, i.e. new water, nutrients and air, will be supplied almost uniformly throughout the roots.

The diameter of the horizontal pipe part of the foam pipe 12 is made larger than that of the leg pipe part, and the horizontal pipe part is provided with an elongated hole for releasing foam, so that the foam can be more uniformly fed into the cultivation tank 14.

Effects of the Invention As described above, the hydroponic cultivation device according to the present invention fills the cultivation tank with bubbles of the nutrient solution under pressure, and the bubbles are constantly renewed with new bubbles, so that they do not reach the roots of the plants. It is extremely useful in that new water, nutrients, and air (oxygen) are constantly supplied, and even if the roots of the plant grow and reproduce in the cultivation tank, new water, nutrients, and air can be supplied almost uniformly to the entire root. have an effect.

[Brief explanation of drawings]

Fig. 1 is a schematic sectional view showing the structure of a hydroponic cultivation device according to the present invention, Fig. 2 is a perspective view showing an example of a bubble pipe used therein, and Fig. 3 shows the structure of a conventional hydroponic cultivation device. It is a schematic sectional view. 11... Nutrient tank, 12... Foaming pipe, 13... Air diffuser pipe, 14... Cultivation tank,
16. River... Lid body. Name of agent: Patent attorney Toshi Nakao Haga 1 person 11
-11 Nutrient liquid! ? -Medical foam hive t3-i trachea diagram 1! 4-Cultivation Neso I5-Ao A book, 3 tt Figure 3 Figure 2

Claims (3)

[Claims] (1) A hydroponic cultivation device in which a nutrient solution tank and a cultivation tank are connected through a bubble pipe, an aeration tube for foaming is provided in the bubble pipe, and the cultivation tank is covered with a lid. (2) The foam pipe is T-shaped, the diameter of the horizontal pipe is larger than the diameter of the leg pipe, and the horizontal pipe is provided with an elongated hole for releasing foam. hydroponic cultivation equipment. (3) The hydroponic cultivation apparatus according to claim 1, wherein a foaming agent is added to the nutrient solution.