JPH07227162A - Solution culture apparatus - Google Patents

Abstract

PURPOSE:To obtain a solution culture apparatus provided with a culture tank for holding a culture solution and a top lid having a specific pot, enabling easy assembly and disassembly, effective for stabilizing the growth of plant and having excellent workability and handleability. CONSTITUTION:This solution culture apparatus is provided with a culture tank 1 for holding a culture solution and a top lid 2 fitting to the culture tank 1. The top lid 2 is provided with detachable pots 3 which form culture bed with culture soil filled in the pots and the pot 3 has an opening 4 having nearly V-shaped horizontal cross section to enable the passage of plant root. The culture tank 1 is preferably provided with a draining hole 12 for keeping the liquid level of the culture solution to nearly constant level.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant hydroponics device which can be easily assembled and disassembled.

[0002]

2. Description of the Related Art Conventionally, there has been known a cultivation apparatus for hydroponics such as hydroponic cultivation. The conventional cultivating apparatus described above, for example, as disclosed in the specification and drawings of Japanese Utility Model Publication No. 4-74949, comprises a cultivating tank for storing a nutrient solution for cultivation, an upper lid of this cultivating tank, and a porous container. ing. The porous container is formed of, for example, a wire mesh, and is filled with sand or gravel-like medium to form a cultivation bed. Then, this cultivation floor is set at a predetermined position by being inserted into the hole provided in the upper lid. At this time, the lower part of the cultivation floor is soaked in the cultivation nutrient solution stored in the cultivation tank.

Therefore, the nutrient solution for cultivation rises from the lower part to the upper part of the cultivation bed due to the capillary phenomenon and is supplied to the roots of the plants planted in the cultivation bed. Air (oxygen) is supplied to the roots of plants from the upper part of the cultivation bed that is not immersed in the cultivation nutrient solution. Thereby, in the cultivation bed, an environment in which the cultivation nutrient solution and oxygen are appropriately mixed is realized. Also,
Since the cultivation bed consists of a porous container, the roots of the plant can freely grow in the cultivation nutrient solution. Therefore, the growth of plants planted in the cultivation floor is promoted.

However, the above conventional cultivation apparatus has a problem that it is difficult to set the cultivation bed. If the cultivation floor is set incorrectly, hydroponics will fail.

In order to solve the above problems, the inventors of the present invention, as disclosed in the specification and drawings of Japanese Patent Application No. 5-289593, store a cultivation nutrient solution and a cultivation tank. We have proposed a hydroponic cultivation device that comprises an upper lid that fits into the upper lid and a pot that is integrally provided on the upper lid. In this hydroponics device, the cultivation bed can be completed simply by filling the pot with sand or gravel-like medium, so that the cultivation bed can be easily set. And, in the conventional hydroponics device,
From the groove-shaped opening formed in the pot, the cultivation nutrient solution is supplied to the roots of the plant planted in the cultivation bed by the capillary phenomenon. In addition, the roots of the plants are allowed to freely grow into the nutrient solution through the openings.

[0006]

However, the above-mentioned conventional hydroponic cultivation apparatus has the following problems.

That is, since the opening formed in the pot has a groove shape, in order to mold the pot using, for example, a synthetic resin as a material, first, the pot body having no opening is formed into a mold. It is necessary to form the opening by performing a primary process using the above, and then performing a secondary process using a cutter or the like on the pot body. Therefore, the pot forming method is complicated, and it is difficult to inexpensively manufacture the hydroponic cultivation device. If a groove-shaped opening is formed in the pot during the primary processing using the die, it becomes impossible to remove the pot from the die.

Further, since the upper lid and the pot are integrally provided, for example, when pulling out a plant planted in the pot from the pot or cleaning the pot, the upper lid interferes with the work. . Therefore, it becomes inconvenient to handle the pot, that is, the hydroponic cultivation apparatus, and the workability is reduced. Further, for example, when the pot is damaged, the entire hydroponic cultivation device must be discarded.

Further, in the hydroponics, it is important to keep the height of the liquid surface of the nutrient solution substantially constant in order to maintain a constant environment in which the nutrient solution and oxygen are appropriately mixed. However, in the above-described conventional hydroponic cultivation apparatus, the user needs to control the height of the liquid surface of the cultivation nutrient solution. For example, when the conventional hydroponics device is used outdoors, such as on a veranda or in a garden, rainwater intrusion increases the amount of the nutrient solution, which increases the height of the liquid surface. At this time, unless the user adjusts the height of the liquid surface of the nutrient solution, oxygen will not be supplied to the roots of the plant, and the plant will die.

The present invention has been made in view of the above problems of the prior art. A first object of the present invention is to perform primary processing using a mold when a pot is made of synthetic resin, for example. The purpose of the present invention is to provide a hydroponic cultivation apparatus at low cost by simplifying the molding method by making the shape moldable. A second object is to provide a hydroponic cultivation device that is easy to handle during work when, for example, pulling out a plant planted in the pot from the pot or cleaning the pot. The third purpose is to prevent the increase in the amount of the cultivation nutrient solution due to the intrusion of rainwater when the device is used outdoors such as a veranda or a garden, and to reduce the height of the liquid surface of the cultivation nutrient solution. To provide a hydroponic cultivation apparatus capable of securing an air layer for supplying oxygen to the roots of a plant to stabilize the growth of the plant by keeping the plant constant and easily and at the same time prevent death. It is in.

[0011]

In order to solve the above-mentioned problems, a hydroponic cultivation apparatus according to the present invention comprises a cultivation tank for storing a cultivation nutrient solution and an upper lid fitted to the cultivation tank. The upper lid is provided with a pot that serves as a cultivation floor by being filled with cultivated soil, and the pot has an opening having a substantially V-shaped horizontal cross section through which plant roots can pass. I am trying.

In order to solve the above-mentioned problems, the nutrient solution cultivation apparatus of the present invention comprises a cultivation tank for storing cultivation nutrient solution and an upper lid fitted to the cultivation tank. It is characterized in that it becomes a cultivation floor by being filled with soil and that a pot having an opening through which plant roots can pass is detachably provided.

In order to solve the above-mentioned problems, the hydroponic cultivation apparatus according to the third aspect of the present invention is the nutrient solution cultivation apparatus according to the first or second aspect, wherein the liquid level of the cultivation nutrient solution is increased in the cultivation tank. It is characterized in that a drainage hole is formed to maintain the height substantially constant.

[0014]

According to the structure described in claim 1, the pot is formed with an opening having a substantially V-shaped horizontal cross section through which the roots of the plant can pass. For this reason, the pot has a shape that can be formed only by performing a primary process using a die, for example, when a synthetic resin is used as a material. This simplifies the method of forming the pot, so that the hydroponics device can be provided at low cost.

According to the second aspect of the present invention, since the pot is detachably provided on the upper lid, for example, when pulling out a plant planted in the pot from the pot or cleaning the pot, You can work by removing the pot from the top lid. That is, the workability described above is improved. This makes it possible to provide a hydroponic cultivation device that is easy to handle during work. Also, for example, when the pot is damaged, it is possible to replace only the damaged pot, so it is not necessary to discard the entire hydroponics device,
The hydroponic apparatus can be continuously used only by replacing the pot.

According to the third aspect of the present invention, since the drainage hole is formed in the cultivation tank, when the device is used outdoors, such as on a veranda or in a garden, liquid of the cultivation nutrient solution due to intrusion of rainwater. It is possible to prevent an increase in the amount and easily maintain the height of the liquid surface of the cultivation nutrient solution substantially constant. This allows
Since it is possible to secure an air layer for supplying oxygen to the roots of the plant, it is possible to stabilize the growth of the plant and prevent mortality.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following will describe one embodiment of the present invention with reference to FIGS.

As shown in FIGS. 1 to 3, the hydroponic cultivation apparatus according to the present embodiment has a container-shaped cultivation tank 1 for accommodating a cultivation nutrient solution 10 and a substantially flat plate-shaped fitting with the cultivation tank 1. Top lid 2
And a plurality of inverted frustoconical pots 3 attached to the upper lid 2 so that the assembling and disassembling can be easily performed. The size and shape of the entire hydroponics device are not particularly limited.

The above-mentioned cultivation tank 1 is formed in a size capable of storing a sufficient amount of cultivation nutrient solution 10 for growing plants. The cultivation nutrient solution 10 is obtained, for example, by dissolving a fertilizer or the like in water. Also, cultivation tank 1
A drainage hole 12 for overflowing the cultivation nutrient solution 10 is formed at a predetermined position on the upper side wall of the. The drainage hole 12 overflows the excess cultivation nutrient solution 10 to allow the cultivation nutrient solution 10 in the cultivation tank 1 to overflow.
The height of the liquid surface is easily maintained at a substantially constant level. The height of the liquid surface of the cultivation nutrient solution 10 is not particularly limited, but in consideration of the size of the pot 3, etc., the amount of the cultivation nutrient solution 10 is 70% of the inner volume of the cultivation tank 1. It is optimal to set it up to about 80%. As a result, the lower part of the pots 3 can be immersed in the cultivation nutrient solution 10 as described later, and between the liquid surface of the cultivation nutrient solution 10 and the top lid 20% of the inner volume of the cultivation tank 1 Air layer with a volume of about 30% 11
Can be secured.

In the hydroponic cultivation apparatus of this embodiment, since the air layer 11 can be secured in this way, oxygen can be sufficiently supplied to the roots of plants. Further, since it is not necessary to circulate the culture nutrient solution 10 or to mix the culture nutrient solution 10 with air (so-called bubbling), a power source such as a motor is not necessary. Therefore, the location of the hydroponics device is not limited.

At predetermined positions inside the side wall of the cultivation tank 1, there are provided holes 6a ... The size and shape of the cultivation tank 1 are not particularly limited. Further, the size and shape of the water draining hole 12 are not particularly limited as long as it is possible to maintain the height of the liquid surface of the cultivation nutrient solution 10 that is optimal for growing plants.

As shown in FIG. 4, the upper lid 2 is formed in a size and shape that allows it to be fitted into the cultivation tank 1 without a gap. Attachment holes 15 for attaching the pots 3 are regularly formed at predetermined positions of the upper lid 2. In the peripheral portion of the upper lid 2, cutouts 6b are provided at positions corresponding to the holes 6a of the cultivation tank 1. Further, the peripheral portion of the upper lid 2 is provided with a cutout portion 13 at a position corresponding to the drainage hole 12 of the cultivation tank 1. The notch 13 is provided to supply the cultivation nutrient solution 10 to the cultivation tank 1. Further, since the inside of the cultivation tank 1 can be seen by providing the cutout portion 13 in this way, for example, the rooting state of the plant can be observed and the cultivation nutrient solution 10 can be obtained.
It is possible to confirm the amount of liquid. The size and shape of the cutout portion 13 of the upper lid 2 are not particularly limited.

A plug 14 is fitted into the notch 13 of the upper lid 2 so as to close the notch 13. The plug 14 is formed in a size and shape corresponding to the drainage hole 12 of the cultivation tank 1 and the cutout portion 13 of the upper lid 2. Further, the stopper 14 is detachable from the upper lid 2, and is removed when the cultivation nutrient solution 10 is supplied to the cultivation tank 1, but is normally attached.

The drainage hole 12 of the cultivation tank 1 is formed in such a size and shape that it can be opened even when the stopper 14 is attached to the upper lid 2. Therefore, the stopper 14
It is possible to overflow the excess cultivation nutrient solution 10 regardless of whether it is attached or detached.

As shown in FIGS. 5 and 6, the upper lid 2 is
.. are formed in the mounting hole 15 at three positions at equal intervals. The notch 15a is provided with a protrusion 15b having a substantially L-shaped cross section. This protrusion 15b
Has a shape in which it extends downward by a length corresponding to the thickness amount of a collar portion (described later) 5 of the pot 3, and then projects toward the center of the mounting hole 15 by the width of the cutout portion 15a. There is. The circumferential length L of the cutout portion 15a is longer than the circumferential length l of the edge portion 15c where the cutout portion 15a is not provided (length L> length 1).

As shown in FIGS. 2 and 7, the pot 3 is formed in a size and shape that can be inserted into the mounting hole 15 of the upper lid 2 and is detachable from the upper lid 2. . And the pot 3 is made into the cultivation floor in which a plant is planted by filling cultivation soil (not shown) in this. Further, on the side wall of the pot 3, a plurality of elongated slits (openings) 4 having a width that allows plant roots to pass through and freely extend are formed.
The type of plant to be planted in the pot 3 is not particularly limited. The above plants may be seeds at the time of being planted in pots 3 ..., or may have already grown to some extent.

The size of the pot 3 may be appropriately set, for example, to be an optimum size according to the type and size of the plant to be planted. Further, the shape of the pot 3 is not limited to the inverted truncated cone shape, and may be any shape that can be inserted into the mounting hole 15 of the upper lid 2. For example, the shape of the pot 3 may be a hemispherical shape or a rectangular parallelepiped shape. That is, the pot 3 may be in a container shape so that it can be filled with the soil. Further, the number of pots 3 and the arrangement position on the upper lid 2 are not particularly limited.

The slits 4 of the pot 3 are formed from the lower part of the pot 3 immersed in the cultivation nutrient solution 10 to the upper part of the pot 3 located above the liquid surface of the cultivation nutrient solution 10. . Further, the slits 4 are formed in a substantially V-shaped horizontal cross section so that the slits 4 are narrow inside the pot 3 and wide outside the pot 3, that is, on the side of the cultivation nutrient solution 10. It is sufficient that the slits 4 ... Have a width that allows the roots of the plants to pass therethrough and freely expand. Slit 4
The width of ... is, for example, pot 3 in consideration of the grain size of the soil.
On the inside, about 1 mm to 5 mm is preferable, about 2 mm to 3 mm is more preferable, and 2 mm is particularly preferable. Slit 4 ...
If the width inside the pot 3 is narrower than 1 mm, it is not preferable because the roots of the plant cannot freely grow, whereas if the width is wider than 5 mm, the soil is spilled, which is not preferable.

If the width of the slits 4 on the outside of the pot 3 is increased, molding of the pot 3 using a mold (described later) becomes easier, but the mechanical strength of the pot 3 is slightly lowered. Therefore, the width of the slits 4 on the outside of the pot 3 may be appropriately set so as to have an optimum width in consideration of the ease of molding the pot 3 and the mechanical strength. The number of slits 4 formed in the pot 3 is not particularly limited.

As shown in FIG. 7, at the predetermined positions on the upper edge of the pot 3, three collar portions 5 are formed at equal intervals. The collar portion 5 has a mounting hole 15 when the pot 3 main body is inserted into the mounting hole 15 from the upper surface side of the upper lid 2.
It is formed in such a size and shape that it can be fitted into the notch 15a.

Then, the pot 3 is fixed to the upper lid 2 by being inserted into the mounting hole 15 from the upper surface side of the upper lid 2 and then being rotated by a predetermined amount in the circumferential direction. That is, when the pot 3 main body is inserted into the mounting hole 15 and then rotated by a predetermined amount in the circumferential direction, the lower surface of the collar portion 5 is supported by the protruding portion 15b of the mounting hole 15 as shown in FIG. On the other hand, the upper surface thereof is held by the edge portion 15c of the mounting hole 15. Therefore, the collar portion 5 is locked by the protruding portion 15b and the edge portion 15c. This makes pot 3
Is fixed to the upper lid 2 at a predetermined position without dropping from the mounting hole 15 or rotating carelessly.

The shape and number of the notches 15a ... And the protrusions 15b ... Of the mounting hole 15, and the collar 5 of the pot 3.
The shape and the number of ... Are not particularly limited as long as the shape and the number can fix the pot 3 to the upper lid 2 as described above.

Further, in the hydroponic cultivation apparatus of this embodiment, since a plurality of pots 3 are fixed to the upper lid 2, it is possible to hydroponic many plants at one time. That is, it is possible to increase the number of solid plants planted per unit area. Therefore, the plant can be efficiently hydroponically grown.

The soil to be filled in the pots 3 is preferably porous particles so that the nutrient solution 10 can rise from the bottom to the top of the pot 3 due to the capillary phenomenon. The grain size of the soil is preferably 2 mm to 5 mm, and particularly preferably 3 mm to 5 mm. Examples of the above-mentioned soil include Pumice sand (trade name; volcanic ash soil of Okinawa region crushed to have a uniform particle size), fine pumice stone, sand, pebbles, and gravel soil. These soils may be used alone or in an appropriate mixture. Incidentally, the cultivating soil is not limited to the above exemplified one, and the cultivation nutrient solution 10 can rise from the lower part of the pot 3 to the upper part by the capillary phenomenon, and the pot 3
Anything that does not interfere with the rooting of plants inside can be used.

Cultivation tank 1, upper lid 2, pot 3 ... and stopper 1
For 4, it is preferable to use a material having a mechanical strength that can withstand the use of the hydroponic cultivation device. Besides, cultivation tank 1,
For the upper lid 2 and the stopper 14, it is preferable to use a material having a light-shielding property in order to prevent the generation of algae such as water-bloom in the cultivation nutrient solution 10. Examples of the above materials include non-foamed synthetic resin such as polystyrene resin and polyurethane resin, and foamed synthetic resin such as expanded polystyrene resin and expanded polyurethane resin (expansion ratio: about 15 to 20 times). It is optimal because it also has heat insulating properties, but if it is a material with mechanical strength and light shielding properties,
It is not particularly limited. The cultivation tank 1, the upper lid 2, the pot 3, ... And the stopper 14 may be made of the same material as each other, or may be made of different materials. The cultivation tank 1, the upper lid 2, the pot 3, ... And the stopper 14 may be colored so that the appearance (look) of the hydroponic cultivation apparatus is good, and the cultivation tank 1, the upper lid 2 and the stopper are colored. A pattern or a picture may be drawn on the outer peripheral surface of 14.

The method for molding the cultivation tank 1, the upper lid 2, the pot 3, ... And the plug 14 is not particularly limited,
For example, when a synthetic resin is used as the material, it can be molded by injection molding, compression molding, or the like. At this time, since the slits 4 ... Of the pot 3 are formed in a substantially V shape, the pot 3 can be formed only by performing a primary process using a mold. That is, since the slits 4 have a substantially V shape, the pot 3 can be pulled out from the mold.

Here, assuming that the slits 4 of the pot 3 are not substantially V-shaped, the slits 4 are formed in a groove shape having an equal width (for example, about 1 mm to 5 mm) inside the pot 3 and outside the pot 3. I will think about the case.
Then, in this case, it becomes impossible to mold the pot provided with the groove-shaped slit only by performing the primary processing using the mold. That is, in order to provide the groove-shaped slit as described above, it is necessary to provide a protrusion portion having a width equal to the width of the slit in the cavity of the mold. However, if the metal mold is provided with the above-mentioned protruding portion, the mechanical strength of this portion is significantly reduced. Therefore, the protruding portion is easily broken or deformed. Further, since the slit has a groove shape, it becomes impossible to pull out the pot from the mold. Therefore, in order to mold a pot in which a groove-shaped slit is formed, first, a pot body without a slit is formed by performing a primary process using a mold, and then a cutter or the like is attached to the pot body. The slit must be formed by performing the secondary processing used.
Therefore, the pot forming method becomes complicated, and the cost of the hydroponic cultivation device increases.

The pot 3 of the hydroponics device according to this embodiment
In the above, since the slits 4 ... Have a substantially V-shape, the shape of the protruding portion provided in the cavity of the mold has a substantially V-shaped cross section. Therefore, the mechanical strength of this portion is maintained, and the protruding portion is not broken or deformed. Moreover, since the slit is substantially V-shaped, it becomes easy to pull out the pot from the mold. Therefore, the method for forming the pot 3 is simplified, and the hydroponic cultivation device can be made inexpensive.

Further, in order to reduce the number of molds used for molding the cultivation tank 1, the upper lid 2, the pot 3, ... And the stopper 14,
For example, the plug 14 may be molded at the same time with the mold used to mold the upper lid 2. That is, the stopper 14 is continuously provided at an appropriate position on the peripheral portion of the upper lid 2 through a thin portion and is molded by using a mold, and then the upper lid 2 and the stopper 14 are separated by the thin portion. To do. Alternatively, the upper lid 2 and the stopper 1
4 is connected via a runner to form a mold, and then the runner is cut to separate the upper lid 2 and the plug 14. As a result, the number of molds used to mold the plug 14 can be reduced.

Next, an example of a method of using the hydroponic cultivation apparatus having the above-mentioned structure will be described. When assembling the hydroponic cultivation apparatus, first, the pots 3 ... Are attached to the upper lid 2 as described above. After that, the upper lid 2 is fitted to the cultivation tank 1, and the pots 3 are filled with the soil. Next, the cultivation nutrient solution 10 is covered with the upper lid 2.
It is supplied into the cultivation tank 1 through the notch 13 and the notch 13 is closed by the plug 14. As a result, the hydroponics device is assembled. Then, a desired plant is planted in the pots 3 and the hydroponic cultivation apparatus is used. Drainage hole 1 in cultivation tank 1
Since 2 is provided, the height of the liquid surface of the cultivation nutrient solution 10 can be easily maintained substantially constant, and an air layer 11 can be secured between the liquid surface of the cultivation nutrient solution 10 and the upper lid 2. It is like this.

The procedure for assembling the hydroponic apparatus is not limited to the above-exemplified procedure. For example, the pots 3 may be filled with the soil before the upper lid 2 is fitted to the cultivation tank 1, and the pots 3 may be filled with the soil 3 before the pots 3 are attached to the upper lid 2. In this way, the cultivation bed can be completed only by filling the pots 3 with the soil, so that the hydroponics device can be assembled very easily.
Further, the cultivation nutrient solution 10 may be supplied to the cultivation tank 1 before fitting the upper lid 2 to the cultivation tank 1.

The cultivation nutrient solution 10 is dipped in the pot 3 through the slits 4 ..., rises from the lower part to the upper part of the pot 3 by the capillary phenomenon, and is supplied to the roots of the plants planted in the pot 3. Further, air (oxygen) is supplied from the air layer 11 to the roots of the plants through the slits 4 ... In the upper part of the pot 3 that are not immersed in the cultivation nutrient solution 10. This allows
In the pot 3, an environment in which the cultivation nutrient solution 10 and oxygen are appropriately mixed is realized. Moreover, the root of the plant can freely grow into the cultivation nutrient solution 10 through the slits 4. Therefore, rooting of plants planted in the pot 3 is promoted and hair roots or air roots develop. That is,
The growth of plants is promoted.

Then, by supplementing the cultivation nutrient solution 10 with an amount absorbed by the plant and reduced, the nutrient solution can be continuously cultivated. In this way, by maintaining the liquid surface height of the cultivation nutrient solution substantially constant, so-called stationary cultivation becomes possible, and therefore the handling of the nutrient cultivation apparatus is extremely simple. Further, for example, when a plant is grown from seeds, it is not necessary to replant the plant until the plant has a desired size.

When the above-mentioned hydroponic cultivation apparatus is used outdoors, such as on a veranda or a garden, if necessary, the cultivation tank 1
A pillar (not shown) is inserted into each of the holes 6a, and a roof is provided above the hydroponic cultivation device in a manner of stretching a so-called tent.
This roof is for preventing an increase in the amount of the cultivation nutrient solution 10 and a decrease in the fertilizer concentration in the cultivation nutrient solution 10 due to the intrusion of rainwater. Therefore, the material forming the roof is preferably transparent so that sunlight can pass through. Further, it is preferable that an open state is provided between the hydroponics device and the roof for ventilation. In addition, if a net is stretched between the hydroponics device and the roof, insect damage to the plants can be prevented.

When the hydroponic cultivation apparatus is used outdoors without the roof, the rainwater flowing down along the plants flows into the cultivation nutrient solution 10 through the slits 4 of the pots 3 ... The liquid level of 10 rises. However, since the drainage hole 12 for overflowing the cultivation nutrient solution 10 is formed in the cultivation tank 1, it is necessary to maintain the height of the liquid surface of the cultivation nutrient solution 10 in the cultivation tank 1 substantially constant. You can Therefore, the air layer 11 for supplying oxygen to the air roots of the plant can be secured, so that the plant does not die. Further, the upper lid 2 does not float from the cultivation tank 1 due to buoyancy.

As described above, the nutrient solution cultivating apparatus according to the present embodiment comprises the cultivation tank 1 for storing the cultivation nutrient solution 10 and the upper lid 2 fitted to the cultivation tank 1. There are provided pots 3 that serve as a cultivation bed by filling the soil. The pots 3 are formed with slits 4 having a substantially V-shaped horizontal section through which plant roots can pass. Therefore, the pots 3 have a shape that can be formed only by performing a primary process using a die, for example, when a synthetic resin is used as the material. This simplifies the method for forming the pots 3 ..., and thus it becomes possible to provide the hydroponic cultivation apparatus at low cost.

Further, the hydroponics device according to this embodiment is
The pots 3 ... Are detachably provided on the upper lid 2. Therefore, for example, when pulling out a plant planted in the pot 3 from the pot 3 or cleaning the pot 3, the pot 3 can be detached from the upper lid 2 to perform the work. That is, the workability described above is improved. This makes it possible to provide a hydroponic cultivation device that is easy to handle during work. Further, for example, when the pot 3 is damaged, only the damaged pot 3 can be replaced. Therefore, for example, even if the pot 3 is damaged, it is not necessary to discard the entire hydroponic cultivation device,
It is economical because the hydroponic cultivation apparatus can be continuously used only by replacing the pot 3.

Further, the hydroponic cultivation apparatus according to this embodiment has a structure in which the drainage hole 12 is formed in the cultivation tank 1. Therefore, for example, when the device is used outdoors such as a veranda or a garden, it is possible to prevent an increase in the liquid amount of the cultivation nutrient solution 10 due to intrusion of rainwater, and to easily keep the liquid level of the cultivation nutrient solution 10 substantially constant. Can be maintained at. As a result, the air layer 11 for supplying oxygen to the roots of the plant can be secured, so that the growth of the plant can be stabilized and the mortality can be prevented.

In this embodiment, the pot 3 is provided with the collar portions 5 ..., On the other hand, the notch portion 15a is formed in the mounting hole 15 of the upper lid 2.
... and the protruding portion 15b ...
The pot 3 is fixed to the upper lid 2, but the pot 3 is
However, the structure is not limited to the above as long as it is detachable. For example, if the upper edge of the pot 3 is the upper lid 2
Is larger than the mounting hole 15 of the pot 3
May be fixed by simply fitting and inserting into the mounting hole 15 of the upper lid 2.

Further, in this embodiment, the slits 4 ...
Is formed from the lower portion of the pot 3 to the upper portion of the pot 3, but the slits 4 may be divided at the upper and lower portions of the pot 3. Further, if there is no hindrance to the molding of the pot 3, it is not necessary to form the slits 4 ...
For example, it may be a round hole or a square hole.

Further, in this embodiment, the pots 3 are fixed to all the mounting holes 15 of the upper lid 2. However, for example, when the plants to be planted in the pots 3 are bulky. In order to widen the spaces between plants, it is possible to adopt a configuration in which plants are not planted in some pots 3, ... That is, the pots 3 ... Are not attached to some mounting holes 15. Is. In this case, a plug for closing the mounting hole 15 may be fitted into the mounting hole 15 where the pot 3 is not mounted.

[0052]

As described above, the apparatus for cultivating nutrient solution according to claim 1 of the present invention comprises the cultivation tank for storing the cultivation nutrient solution and the upper lid fitted to the cultivation tank. Is provided with a pot that serves as a cultivation floor by filling the pot with an opening having a substantially V-shaped horizontal section through which plant roots can pass.

Therefore, the pot has a shape that can be formed by only performing a primary process using a mold, for example, when a synthetic resin is used as the material. This simplifies the method of forming the pot, and has the effect of making it possible to provide the hydroponic cultivation apparatus at low cost.

The hydroponic cultivation apparatus according to claim 2 of the present invention is
As described above, a cultivation tank for storing the cultivation nutrient solution and an upper lid fitted to the cultivation tank are provided, and the upper lid serves as a cultivation floor by filling the cultivation soil, and an opening through which the root of the plant can pass. The pot in which is formed is detachably provided.

Therefore, for example, when the plant planted in the pot is pulled out from the pot or the pot is washed, the pot can be detached from the upper lid for work. That is, the workability described above is improved. As a result, it is possible to provide a hydroponic cultivation device that can be easily handled during work. Further, for example, when the pot is damaged, it is possible to replace only the damaged pot, so it is not necessary to discard the entire hydroponic cultivation device, and the hydroponic cultivation device can be replaced by simply replacing the pot. It also has the effect that it can be used continuously.

The hydroponic cultivation apparatus according to claim 3 of the present invention is
As described above, in the cultivation tank, the drainage holes for maintaining the height of the liquid surface of the cultivation nutrient solution substantially constant are formed.

Therefore, for example, when the apparatus is used outdoors such as a veranda or a garden, an increase in the amount of the cultivation nutrient solution due to the intrusion of rainwater is prevented, and the height of the liquid surface of the cultivation nutrient solution is kept substantially constant. Can be easily maintained. As a result, an air layer for supplying oxygen to the air roots of the plant can be secured, so that it is possible to stabilize the growth of the plant and prevent death.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a hydroponic cultivation apparatus in one embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the above hydroponics device.

FIG. 3 is a plan view showing the hydroponics device.

FIG. 4 is a bottom view showing an upper lid included in the hydroponics device.

FIG. 5 is a plan view showing a main part of the upper lid.

FIG. 6 is a perspective view showing a main part of the upper lid.

FIG. 7 is a perspective view showing a pot provided in the above-mentioned hydroponic cultivation apparatus.

FIG. 8 is a sectional view of an essential part showing a state in which the pot is fixed to an upper lid.

[Explanation of symbols]

 1 Cultivation Tank 2 Upper Lid 3 Pot 4 Slit (Opening) 5 Collar 10 Cultivation Solution 11 Air Layer 12 Drainage Hole 15 Mounting Hole

Claims (3)

[Claims] 1. A cultivation tank for storing a cultivation nutrient solution, and an upper lid fitted to the cultivation tank, wherein the upper lid is provided with a pot serving as a cultivation floor by filling the cultivation soil. A hydroponics device having an opening having a substantially V-shaped horizontal section through which a root of a plant can pass. 2. A cultivation tank for storing a cultivation nutrient solution, and an upper lid fitted to the cultivation tank, wherein the upper lid serves as a cultivation floor by being filled with soil, and an opening through which plant roots can pass. A hydroponic cultivation device characterized in that a pot having a groove is detachably provided. 3. The hydroponic cultivation apparatus according to claim 1, wherein the cultivation tank is provided with a water draining hole for maintaining the height of the liquid surface of the cultivation nutrient solution substantially constant. .