JPH02308733A - Water culture device - Google Patents

Abstract

PURPOSE:To obtain a water culture device suitable for over-thecounter sale by equipping a bottomed frame having a slantingly supported open top with a nutritive solution feeder, discharge hole of nutritive solution and growing board in a specific state. CONSTITUTION:A frame 2 having a bottom 1 is supported at an angle alpha from the horizontal plane. A header 3 to send nutrient in a thin layer to the bottom 1 is equipped at the top of the slope of the frame 3. A hole 4 to supply nutrient to the outside of the frame is bored on the lower part of the sloped frame 2 at the other side. A nutritive solution layer T is connected to a pump P between the header 3 and the hole 4 outside the frame to form a recycling device of nutritive solution to send the nutritive solution in the nutritive solution tank T to the header 3. A growing board 5 for vegetable is placed on the frame 2, the growing board 5 is bored with a great number of planting holes 6 and seedlings planed in ordinary urethane foam are inserted into the planting holes 6. As the seedlings grow, leaf parts grow over the surface of the growing board 5 and root part 8 is dropped from the under surface of the growing board 5. The root part 8 is brought into contact with the bottom 1 of the frame 2, reaches a fluidized layer of nutritive solution and absorbs nutrient.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application] The present invention relates to a hydroponic cultivation device that is directly connected to a vegetable factory and is suitable for over-the-counter sales to supply fresh vegetables to consumers as they are.

[Conventional technology and its drawbacks]

In recent years, hydroponic cultivation, so-called vegetable factories, has become popular, and the harvested products are sold as pesticide-free vegetables.

However, until now, the products sold in stores! ! The snout is harvested at a factory, wrapped in plastic film, etc., and sold.

However, this method has the disadvantage that moisture is not supplied at the store, and furthermore, the leaves contact each other during bagging or inside the bag, resulting in significantly lower freshness than at the time of harvest.

〔the purpose〕

The present invention aims to improve these drawbacks and provide a hydroponic cultivation device suitable for over-the-counter sales.

〔composition〕

The present invention supports a bottomed frame with an open upper part inclined at an angle of 30 to 85 degrees, and this frame is equipped with a nutrient solution supply device above the inclination and a nutrient solution discharge hole below the inclination, Nutrients are circulated between them, and a growth board with a large number of plant growth holes is placed in the open part of the frame.

Particularly for those that are applied to showcases suitable for over-the-counter sales at supermarkets, convenience stores, etc., the hydroponic cultivation equipment is housed in a showcase with at least a transparent front, and is especially equipped with an irradiation lamp device. , and is preferably equipped with a feeder for supplying carbon dioxide gas, and further equipped with air conditioning equipment.

In the present invention, both the growing board and the frame are placed in a showcase from the beginning, and the vegetables may be grown in this case from the beginning until they are sold, but the vegetables are grown using a separate growing device. It is also possible to carry it into a showcase and display it at the time of sale.

There are no particular restrictions on the material of the growth board or frame, but plastic is preferred, and the depth to the bottom of the frame is such that the roots of the growing plants come into contact with it. On the other hand, the nutrient solution to be flowed down gradually flows from the top of the slope, but it is sufficient to form it into an extremely thin film.

〔Concrete example〕

FIG. 1 is a partially cutaway perspective view of the apparatus A of the present invention, and FIG. 2 is a longitudinal sectional view of the main part.

As shown in the figure, a frame 2 having a bottom 1 is supported at an angle α from a horizontal plane. The sloping upper part of this frame 2 is provided with a header 3 for flowing nutrients down in a thin layer to its bottom l. A hole 4 for guiding nutrients out of the frame is bored in the lower part of the inclined frame body 2 on the -blade side. This header 3
and hole 4, there is a nutrient solution layer T and a pump P outside the frame.
are connected to form a nutrient solution circulation device that sends the nutrient solution in the nutrient solution tank T to the header 3.

A growing board 5 for vegetables, etc. is placed on the frame 2,
This growth board 5 has a large number of vegetation holes 6, 6, .

As the seedling grows, the leaf portion 7 extends upward from the surface of the growth board 5, and the root portion 8 hangs down from the bottom surface of the growth board 5.

This root portion 8 contacts the bottom of the frame 2, where it reaches the fluidized bed of the nutrient solution and absorbs nutrients. Furthermore, as can be seen in the figure,
Since the upper half of the root part 8 is exposed to the air, it can take in sufficient oxygen, and the vegetables retain their freshness by absorbing nutrients and water and supplying oxygen.

The growth board 5 has its upper end side surface in contact with the sloped surface of the upper end of the frame 2, and its lower end slides onto a seat 9 extending from the frame 2 by means of a pulley 10. Of course, this pulley 10 is provided at the lower end of the growth board 5,
It is used for moving the growth board 5.

FIG. 3 is a conceptual diagram of the apparatus A of the present invention installed in a showcase S placed at a store. That is, showcase S
The front part 11 of is generally a transparent glass door,
The user can open this door and freely take out vegetables from the growing board 5.

This showcase S is preferably equipped with an irradiation lamp 12, and is also equipped with a carbon dioxide gas supply feeder and air conditioning equipment (not shown), thereby promoting the growth of vegetables and maintaining their freshness.

The growing board 5 is installed diagonally within the showcase S, making it easier for the user to see the vegetables, and at the same time, the nutrient solution layer T and pump P are housed on the back side of the frame 2 that supports the growing board 5. It can also save space.

〔effect〕

By adopting the above-described structure, the present invention can continue to supply nutrients to vegetables until the point of sale, and the vegetables for sale do not come into contact with each other, making it possible to always supply fresh vegetables. It has certain excellent effects.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an embodiment of the hydroponic cultivation device of the present invention, Fig. 2 is a longitudinal sectional view of the main part thereof, and Fig. 3 is a side view of the device of the present invention housed in a showcase. It is a diagram. 2... Frame body, 3... Hengoo, 5... Growth board, 12... Irradiation lamp, A... Hydroponic cultivation device, S... Showcase.

Claims (5)

[Claims] (1) A bottomed frame with an open top is supported at an angle of 30 to 85 degrees, and this frame is equipped with a nutrient solution supply device above the inclination and a nutrient solution discharge hole below the inclination, A hydroponic cultivation apparatus characterized in that nutrients are circulated between the frames and a growth board with a large number of plant growth holes is placed in the upper open part of the frame. (2) A hydroponic cultivation device characterized in that the device according to claim (1) is housed in a showcase whose front surface is at least transparent. (3) The hydroponic cultivation apparatus according to claim (2), further comprising an irradiation lamp device inside the showcase. (4) The hydroponic cultivation apparatus according to claim (2), further comprising a feeder for supplying carbon dioxide gas within the showcase. (5) The hydroponic cultivation apparatus according to claim (2), characterized in that an air conditioning facility is provided in the showcase.