JPS62262929A - Hydroponic culture 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 <Industrial Application Field> The present invention involves passing a hydroponic liquid into a pipe, causing the hydroponic liquid to flow out from nine small holes provided around the tube, and This invention relates to a nursery type hydroponic cultivation device for growing plants by wrapping the ends around the bag and allowing the hydroponic solution to flow down and penetrate into the nine-bag-like body.

<Prior Art> Appropriate amounts of water, fertilizer, and oxygen must be supplied from the roots for plant growth. Hydroponic cultivation is a method that has been studied and implemented in order to grow plants uniformly, quickly and favorably by appropriately adjusting these conditions. Conventionally used systems for absorbing liquid fertilizer include the following.

l) Those whose roots are immersed in a large amount of liquid fertilizer tank.

-Liquid fertilizer can be absorbed through the roots, but since the supply of oxygen depends on dissolved oxygen in the water, the supply of oxygen is insufficient and there are problems with growth.

2) Liquid fertilizer is constantly flowing at the bottom of the gutter where the root tips are located.

Oxygen is plentiful, but water and fertilizer can only be absorbed through the root tips.

3) A method in which liquid fertilizer is poured or dripped into a cavity that serves as a liquid-retaining material that replaces soil and also serves as a root support.

(Use rock wool, gravel, etc.) - Oxygen, fertilizer, and water are absorbed through the entire root, which is good for plant growth, but when cleaning or disposing of accumulated salts at the end of cultivation, gravity or pollution A problem arises.

In addition, substances such as rock wool that are leached into water have a negative impact on plants.

As can be seen from the above-mentioned current situation, it can be said that the ideal system for growing plants is one that can absorb plenty of air, water, and fertilizer through the entire root system. A cloth-bed hydroponic system has been proposed as a system close to this ideal state. In this system, liquid fertilizer is constantly flowed from the top of a bag-like body made of cloth along the inner surface of the bag-like body. The entire roots of the plants are in contact with the inner wall of the bag, absorbing liquid fertilizer from the entire surface, and at the same time, since the entire roots are in the air, sufficient oxygen is supplied, making this an ideal system for plant growth. It is.

<Problems to be Solved by the Invention> Conventionally proposed seedbed-type cultivation devices have a structure in which the cloth constituting the seedbed part hangs almost perpendicularly inside the holding member 1, as shown in Figure 1. The intention is to limit the inserted root area and to expect some degree of liquid retention from the fabric. A very important feature of Honseba Manshiki is that its roots can directly absorb an abundance of oxygen. However, since the seedbed cloth hangs vertically 21, even if the trunk of the clamping member 1 is enlarged into a via dal shape in order to increase the root capacity, the seedbed cannot be expanded, and the sheet-like material according to the method 5.5 adhere to each other due to the surface tension of water, resulting in a state in which the amount of free air is small, causing a problem in the supply of oxygen, which is the purpose of this system.

<Means for Solving the Problems> The present invention provides an inner frame body of a regular shape along the cross-sectional shape of the inner side of the clamping member 1 from the inside of the bag-like sheet material 5, for example.
This is a hydroponic cultivation device characterized by inserting a rod-like object or a band-like object 17, and bringing the bag-like sheet-like object 5 into close contact with the inner surface of the holding member 1 to constantly expand the cavity of the bag-like object. .

Next, one embodiment of the device of the present invention will be described in detail based on the attached drawings. @1 In Fig. 1, a vibrator 2 for supplying hydroponic liquid is installed on the inner surface of the upper end of the holding member 1, which is made of a synthetic resin or metal plate or the like, and has a U-shaped cross section and is impermeable to water, near both end portions.
A sheet-like material 4 that absorbs and holds hydroponic liquid on the inner surface of the holding member 1 and a sheet-like material 5 that allows roots to absorb the liquid from the surface are stacked and folded in two. with the sheet-like material 5 on the inside and the sheet-like material 4 on the outside, with the upper end portions being the outer peripheral surface of the vibrator 2.2 and the inner surface of the holding recess 3.3 of the holding member 1. 5, and the bag-like body 5 and the water retaining material 4 are inserted into the holding member 1 from the inner surface of the bag-like body 5 using a plurality of expansion members 17.
holders 6.6 and 7 that are brought into close contact with the inner surface of the bag to expand the internal cavity of the bag-like body and hold the clamping member 1 in a vertical position;
It is held and configured by The vibrator 2.2 is constructed by providing a plurality of holes 8 along the positions near the upper ends of the sheet-like objects 4 and 5, and the holding position of the holding member 1 is as shown in FIG. The holding members 1 are held by the respective holders 6 so as to be inclined in the longitudinal direction, and with the inclined lower end sides of the holding members 1 aligned, a plurality of rows are arranged in parallel as shown in the imaginary line in FIG. -doshokan/111+ 1dohata oki 1fa de -ru 6 down n 1-11+ M'L 1.
1 - Transfer the inclined lower end of the L1-shaped body 9 to the hydroponic liquid tank 1
0, and a water pump 11 is provided between the hydroponic liquid tank 10 and the liquid supply vibrator 2.2, and 10 and 2.
Contact both numbers. Pump 11 and liquid supply pipe 2.
It is even more advantageous to insert a bypass 12 between 2.2 and to provide a liquid volume control valve 14 between the branch point 13 of the bypass 12 and the liquid supply pipe 2.2. Zarani pump 11
A 24-hour timer may be installed between the iIc source 15 and the iIc source 15, and the importance of the pump power source may be adjusted as appropriate.

In the figure, reference numeral 16.16 is a sponge elastic body, which is provided on the upper outer side of the opposing sheet-like materials 4.4 and 5.5, and tightly presses the upper portion of the sheet-like material 5.5. It is prescribed. In this case, a sponge elastic sheet material 16.16 is wound between the liquid supply pipe 2.2 and the sheet materials 4.4 and 5.5, and the liquid supply vibrator 2.2 is placed facing each other at a short distance. The sheet-like material 5.5 may be closely pressed together.

Water is pumped from the hydroponic liquid tank 10 by the pump 11 while plant seeds are elastically sandwiched between the sheet materials 4.4 and 5.5 that are pressed against the sponge elastic body 16.16. The cultivation solution is fed into pipe 2.2. The hydroponic liquid in the pipe 2.2 passes through the plurality of holes 8 to the sheets 4.4 and 5.
The sheet-like materials 4.4 and 5.
It flows down and penetrates downward along the inner surface of 5. Then, the surplus hydroponic liquid reaches the bottom surface of the clamping member 1, flows into the gutter-like body 9 due to its inclination, and is returned to the hydroponic liquid tank 10.

The features of the device of the present invention are as shown in FIG.

The point is that an inner frame body 17 for pushing and expanding the manner bag-like body 5 from the inside along the shape of the clamping member 1 is installed inside the manner bag-like body 5. This makes it possible to supply abundant air, or oxygen, to the roots.

The material of the inner frame body used in the present invention, that is, the expansion material is resin,
Any material that retains its shape, such as metal or wood, can be used. Also, whether the expansion material is made up of a bar with a round cross section or a strip with a flat cross section,
Furthermore, it may be composed of other cross-sectional shapes. Further, the molded shape may be such that it extends almost all the way around the cross section of the holding member, or may be such that only the upper part or only the lower part is expanded.

As described above in detail with reference to the drawings, the present invention allows the hydroponic liquid supplied from the hydroponic liquid supply pipe 2.2 through the plurality of discharge ports 8 to be transferred between the outer circumferential surface of the pipe 2.2 and the holding member l. The hydroponic liquid is allowed to flow down along the bag-like body 5 of the sheet-like material whose upper end is held between the inner surface of the holding recess 3.3, and the roots of the plants absorb the hydroponic liquid from the inner surface of the bag-like body in the air. In a cloth bed type hydroponic cultivation device in which plants grow by absorbing liquid and using the inside of the bag-like body as a root region,
The bag-like body 5 is characterized in that a plurality of inner frames 17 are installed inside the bag-like body 5 to keep the bag-like body expanded at all times. Water sticks together due to the surface tension of the roots, preventing too much oxygen in the root zone, and prevents stagnation of hydroponic fluid in the root zone, allowing an abundant supply of oxygen to the roots and growing healthy plants without root rot. This is just in case you get it.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an example of the apparatus of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a cross-sectional view of the main part thereof. Further, Figure @4 is a sectional view of a main part tank of an apparatus that does not employ the present invention.

Claims (1)

[Claims] The hydroponic solution is allowed to flow down along the bag-like body of the fabric bed sheet, and the roots of the plants absorb the liquid from the surface of the bag-like body in the air, and the plants grow using the inside of the bag as their root area. In the fabric bed type hydroponic cultivation device, an inner frame body is installed inside the bag-like object to press the bag-like object from the inside against the holding member along the shape of the holding member covering the outside of the bag-like object. A hydroponic cultivation device characterized by: