JPH0339025Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an apparatus for growing plants by supplying a culture solution to a medium on which plants are planted.

<Conventional Examples and Problems> Generally, when a culture medium is supplied to a medium having a certain thickness, the medium retains a small amount of liquid on the upper side and a large amount on the lower side. The culture solution in the lower part is retained for a long time due to the liquid retaining power of the medium material.

Therefore, if the roots of the plant extend to the lower part of the medium material, excessive culture solution may cause problems such as overgrowth of the roots and lack of oxygen.

Furthermore, if the culture solution remains in the medium material for a long time, components of the material of the medium material may be eluted, which may be unfavorable for plant growth.

<Means for solving the problems> The present invention was proposed to solve the above-mentioned drawbacks, and is a plant growing device that can discharge the culture solution remaining in the medium without inhibiting the growth of the plants. is intended to provide.

In order to achieve the above purpose, the present invention aims to provide a cultivation device for growing plants by supplying a culture solution.
It has a culture medium into which a culture solution can infiltrate, and a tubular liquid collection part that covers at least the bottom surface and side wall surface of the culture medium and is formed below the side wall along the lower edge of the side wall of the culture medium. a liquid-tight covering material made of a nonwoven fabric, disposed between the bottom surface of the medium material and the covering material so that at least one edge faces into the liquid collection part, and a culture solution in the medium material; and a suction member capable of absorbing water by capillary action and discharging it into the liquid collection section.
The structure is as follows.

That is, the culture solution supplied to the culture medium is largely distributed in the lower part of the culture medium due to gravity.

Moreover, the liquid remaining at the bottom of the medium material is
It is difficult to discharge due to the liquid retention capacity of the culture medium.

Therefore, in the present invention, a suction member is disposed below the culture medium material, and the remaining liquid is forcibly absorbed by this member and flows out to the liquid collection part formed in the coating material, and is supplied to the culture medium material. The culture solution is drained without remaining in the culture medium for a long time, thereby eliminating the harmful effects of remaining liquid in the culture medium.

<Example> Hereinafter, the present invention will be explained in detail based on the example shown in the drawings.

An embodiment of the present invention is shown in FIG.
1 is a medium for planting plants, which includes liquid-absorbing rock wool and glass wool as inorganic fiber materials, cellulose-based materials as organic fiber materials, liquid-absorbing urethane foam as foamable synthetic resins, and charcoal, sand, etc. It is formed into a rectangular parallelepiped with an appropriate thickness.

Reference numeral 2 denotes a liquid permeable member disposed to cover the lower surface and side wall surface of the culture medium 1, and is made of a nonwoven sheet made of nonwoven fibers such as polyvinyl alcohol, polyester, and nylon. Approximately 50 μm in diameter, which the roots of cultivated plants cannot pass through.
It shall have the following pores.

Reference numeral 3 denotes a covering material, which is made of a liquid-tight flexible plastic sheet and is configured to cover at least the bottom and side wall surfaces of the culture medium 1.

In the illustrated example, since the liquid-permeable member 2 is provided on the lower surface and side wall surface of the culture medium 1, the outer side thereof is covered with the covering material 3.

Reference numeral 4 denotes a heat reflective sheet, which is disposed so as to cover the upper surface side and the outside of the side wall surface of the culture medium 1, and is connected to the covering material 3 so as to be integrated therewith.

As the heat reflective sheet 4, it is preferable to use a material that can be easily welded to the covering material 3, such as an aluminum foil laminate film or an aluminum vapor-deposited film.

5 is a suction member, made of polypropylene, polyester terephthalate nonwoven fabric, 250
Adopt one with a basis weight of g/m ² or less and a thickness of 1 to 8 mm.

The suction member 5 is disposed between the covering material 3 and the bottom surface of the culture medium material 1, but in this embodiment, the liquid permeable member 2 is disposed on the bottom surface of the culture medium material. Liquid permeable member 2 and coating material 3 on the bottom surface of the culture medium 1
is placed between.

Further, the coating material 3 has a tubular liquid collection part 6 formed below the side wall surface along the lower edge of the side wall surface of the culture medium 1, and the suction member 5 is attached to the liquid collection part 6. One side edge is inserted.

Reference numeral 7 denotes a liquid supply pipe installed on the upper surface of the culture medium 1, and the liquid supply pipe 7 is provided with a plurality of discharge holes for supplying culture liquid to the culture medium 1. Note that a porous pipe made of a material in which fine liquid permeation holes are formed may be used as the liquid supply pipe.

The liquid supply pipe 7 is covered by a part of the liquid permeable member 2, and the culture liquid released from here is absorbed by the liquid permeable member 2 and seeps around the discharge hole to the culture medium 1. In addition to making the liquid supply uniform, the medium material 1
This prevents the liquid from scattering onto the side walls of the culture medium 1 and the coating material 3, thereby ensuring that the liquid can be supplied to the culture medium 1.

As in this embodiment, by disposing the liquid-permeable member 2 between the culture medium 1 and the covering material 3, and between the culture medium 1 and the suction member 5, even if the roots of the plant grow, the liquid permeable The roots do not advance to the outside of the sexual member 2, and the roots do not enter the suction member 5 or the liquid collection part 6 and become overly immersed in the culture solution or obstruct the discharge of the solution.

Reference numeral 8 denotes a heater embedded in the ridge 9 on which the culture medium 1 and the like are placed, and employs a heating wire, a hot water pipe, or the like. In addition, when the heater 8 is provided with an insertion member 12 to be described later, a recess 1 is formed on the upper surface of the insertion member 12.
2a is formed and the heater 8 is disposed within this recess, there are no gaps between the members at the location where heat is transmitted, and thermal conductivity is improved.

In winter, when heating is performed by this heater 8, the temperature is increased by heat conduction of each member. At this time, the heat-reflecting sheet 4 prevents heat from leaking from inside the growing apparatus, so that heat retention is improved.

It goes without saying that the heat-reflective sheet 4 can block heat from outside such as solar radiation in the summer and prevent the temperature inside the growth apparatus from rising.

Thus, the culture solution is supplied to the culture medium from the solution supply pipe 7. The supplied culture solution will be held at the bottom of the culture medium 1, but will be absorbed by the suction member 5 due to capillary action.

The culture solution absorbed by the suction member 5 is disposed so that one end edge of the suction member 5 faces the liquid collection part 6, so that the culture solution is transmitted through the suction member 5, and when it reaches a saturated state, the culture medium The liquid naturally flows down to the liquid collection part 6 formed below the side wall of the material 1 and is drained. The culture solution collected in the liquid collecting section 6 is collected through the liquid collecting section 6 into a liquid storage tank (not shown) or is disposed of.

In order to grow plants using this plant growing device, first, plants are planted in the medium material 1, and both ends of the liquid collecting part 6 are closed until the roots of the plants are attached to the medium material 1. The inside of the coating material 3 is filled with liquid. After this attachment is completed, one end of the liquid collecting section 6 is opened to drain the liquid. Of course, the culture solution discharged at this time may be collected and reused.

Thereafter, the plants are grown by supplying liquid according to the amount absorbed by the plants.

FIG. 2 shows a state in which the covering material 3, the heat reflective sheet 4 and the suction member 5 are made into a unit and this is unfolded.

That is, the heat reflective sheet 4 is welded 10 to both side edges of the covering material 3 and integrated.

In addition, a bag-like tubular liquid collection part 6 is formed from one side edge of the coating material 3 to a position corresponding to the lower side wall of the culture medium 1. One side edge of the lowering member 5 is inserted and welded 11 in spots at appropriate intervals.

When forming the liquid collection part 6 by welding intermittently as shown in the illustrated example, the liquid can be drained evenly over the longitudinal direction of the culture medium 1. This action is not limited to only draining the culture solution remaining at the bottom of the culture medium 1, but can also be performed uniformly over the entire area of the culture medium 1 even when draining an excess culture solution.

In this case, the liquid collecting part 6 may be provided not only on one side of the lower side wall of the culture medium 1 but also on both sides, and the side edge of the suction member 5 may not be inserted into the liquid collecting part 6. Of course, anything is fine.

FIG. 3 shows an embodiment of the base on which the growing device of the present invention is set up.

In Figure a, the upper surface of the ridge 9 is formed to be inclined, and in Figure b, an insertion member 12 is disposed on one side of the bottom of the apparatus in order to arrange the growing apparatus at an angle.

This insertion member 12 has a recess 12a formed in its upper surface in which the heater 8 can be placed.

If the cultivation device is arranged in an inclined manner in this way, if the liquid collection part 6 is provided only on one side and placed in a low position, the culture liquid absorbed by the suction member 5 will be transferred to the liquid collection part. 6, which has the advantage of allowing smooth drainage work.

Further, when the liquid collection part 6 is provided at the lower part of one side edge of the culture medium 1 and the liquid supply pipe 7 is arranged above the other side edge of the culture medium 1, the culture liquid flows from the liquid supply pipe 7 to the other side. Even if the liquid is supplied downward, the suction member 5 guides it to the liquid collection part 6 side, and there is an advantage that the liquid is supplied over the entire area of the culture medium 1.

<Effects> The present invention has the above-mentioned configuration, and the culture solution remaining in the culture medium is forcibly drained into the liquid collecting part by the suction member, so that the supplied culture solution does not remain in the culture medium for a long time. This eliminates the harmful effects of excessive nutrient provision to plants and deterioration of the culture solution that remained in the past.

As a result, plants planted in the growing device of the present invention can be grown in a favorable environment with a supply of culture solution without suffering from problems such as overweight roots due to excessive supply of culture solution or lack of oxygen. It is something.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a perspective view of a developed state in which the covering material, the heat reflective sheet, and the suction member are integrated into a unit, and FIGS. 3a and 3b are sectional views showing the base on which the growing apparatus is placed. 1... Culture medium material, 2... Liquid permeable member, 3... Covering material, 4... Heat reflective sheet, 5... Suction member,
6...Liquid collecting section.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A cultivation device for growing plants by supplying a culture solution, comprising: a culture medium into which the culture solution can infiltrate; and a culture medium that covers at least the bottom and side walls of the medium; a liquid-tight covering material having a tubular liquid collection part formed below the side wall along the lower edge of the side wall; and a liquid-tight covering material made of a non-woven fabric and having at least one edge within the liquid collection part. A suction member disposed between the bottom surface of the medium material and the covering material so as to face the medium material, and capable of absorbing the culture solution in the medium material by capillary action and discharging it to the liquid collection part. Plant growing equipment. 2. The hydroponic plant growing device according to claim 1, wherein the covering material is formed of a flexible plastic sheet. 3. The above-mentioned utility model registration in which the liquid collecting part is formed into a tubular shape by polymerizing a part of the covering material made of a flexible sheet material so that it has a substantially bag-like cross section, and intermittently fixing the polymerized part. Claim 1
A plant growing device using hydroponic cultivation according to item 1 or 2. 4. The hydroponic plant growing device according to claim 1, wherein the covering material has a heat-reflective sheet on a portion covering the upper surface and side wall portion of the culture medium material.