JP3228992U - Plant cultivation equipment and plant cultivation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant cultivation apparatus and a plant cultivation system capable of suppressing the growth of algae. SOLUTION: The plant cultivation apparatus 2 includes a cultivation bed 10 formed in a tub shape capable of accommodating a culture solution, and a cultivation panel 20 placed on the cultivation bed. The cultivation bed has a panel support surface 13b that supports the edges of the cultivation panel. The panel support surface is an inclined surface that is inclined with respect to the vertical direction. The cultivation bed includes a long tub main body 12 that opens upward, and a flange portion 14 that extends outward in the width direction from the upper end of the side edge extending along the longitudinal direction of the tub main body. Have. [Selection diagram] Fig. 4

Description

The present invention relates to a plant cultivation apparatus and a plant cultivation system used for plant cultivation in a cultivation room.

Conventionally, as a method of cultivating a plant in a cultivation room, a hydroponic cultivation method of cultivating a plant using a culture solution instead of soil is widely known. As a plant cultivation device used in such a hydroponic cultivation method, Patent Document 1 discloses the plant cultivation device 100 shown in FIGS. 9 and 10.

As shown in FIGS. 9 and 10, the plant cultivation apparatus 100 of Patent Document 1 includes a cultivation bed 102 in which the culture solution L is housed, and a cultivation panel 104 placed on the cultivation bed 102. Plant P is cultivated by dropping the seedling pot 108 into the cultivation bed 102 through a large number of planting holes 106 formed in the cultivation panel 104. According to the plant cultivation apparatus 100 of Patent Document 1 having such a configuration, the moist middle roots are grown in the growth space S formed between the lower surface of the cultivation panel 104 and the liquid surface of the culture solution L, and the culture solution L is grown. Since it is possible to grow underwater roots inside, it is possible to generate roots having two different forms or functions, underwater roots and wet roots.

JP-A-2019-180272

However, as shown in FIG. 10, the plant cultivation apparatus 100 of Patent Document 1 has a configuration in which the side edge portion of the cultivation panel 104 is placed on the step portion 110 formed on the side edge portion of the cultivation bed 102. There is a problem that the culture solution L tends to accumulate in the step 110, which tends to generate algae (blue-green algae).

Therefore, an object of the present invention is to provide a plant cultivation device and a plant cultivation system capable of suppressing the growth of algae.

In order to achieve the above object, the plant cultivation apparatus according to the present invention is a plant cultivation apparatus including a cultivation bed formed in a tub shape capable of accommodating a culture solution and a cultivation panel placed on the cultivation bed. The cultivation bed has a panel support surface that supports the edge of the cultivation panel, and the panel support surface is an inclined surface that is inclined with respect to the vertical direction.

In the plant cultivation apparatus according to the present invention, the cultivation bed has a long tub body portion that opens upward and an upper end portion of a side edge extending along the longitudinal direction of the tub body portion outward in the width direction. It is preferable to have a flange portion extending toward the surface.

In this case, it is more preferable that the flange portion has a contact surface capable of surface contact with the flange portion of another cultivation bed arranged adjacent to the flange portion.

The plant cultivation apparatus according to the present invention preferably further includes a water level adjusting means capable of adjusting the water level of the culture solution contained in the cultivation bed, and the water level adjusting means adjusts the water level of the culture solution to the panel support surface. It is preferable that the water level at the time of cultivation is adjustable to be lower than the support point of the cultivation panel in.

In this case, it is more preferable that the water level adjusting means is configured so that the water level of the culture solution can be adjusted to a higher water level during panel transportation than the support portion of the cultivation panel on the panel support surface.

Further, in the plant cultivation apparatus according to the present invention, the cultivation bed is preferably formed of metal.

In this case, it is more preferable that the cultivation bed is formed by roll forming.

Further, the plant cultivation system according to the present invention is a plant cultivation system including the above-mentioned plant cultivation apparatus and a rack in which the plant cultivation apparatus is arranged in multiple stages, and the rack is equipped with the plant cultivation apparatus. It is characterized in that it is formed by stacking a plurality of table-shaped rack members having a top surface portion to be placed and leg portions extending downward from the top surface portion.

In the plant cultivation system according to the present invention, it is preferable that the rack member has a connecting guide portion into which the leg portion is fitted at a position consistent with the leg portion of the rack member arranged in the upper stage.

Further, the plant cultivation system according to the present invention is preferably further provided with a lighting device provided on the lower side of the top surface portion of the rack member and illuminating the plant cultivation device arranged at the lower stage of the rack member. A space is formed in the rack member between the lower surface of the cultivation bed of the plant cultivation device mounted on the top surface portion and the lighting device provided on the lower side of the top surface portion of the rack member. As such, it is preferable that the plant cultivation device and the lighting device can be supported.

In this case, it is more preferable that the lower surface of the cultivation bed is configured to be able to reflect the light from the lighting device.

Further, it is more preferable that the cultivation panel is configured to be able to reflect the light from the lighting device.

According to the present invention, it is possible to provide a plant cultivation device and a plant cultivation system capable of suppressing the growth of algae.

It is a front view which shows typically the plant cultivation system which concerns on one Embodiment of this invention. It is a side view which shows typically the plant cultivation system which concerns on this embodiment. It is a top view which shows typically the plant cultivation system which concerns on this embodiment. It is an exploded view which shows the state which separated the cultivation bed main body and the end plate. It is sectional drawing which shows schematic cross section of the cultivation bed. It is a figure which shows roughly the state which adjusted the water level of a culture solution to the water level at the time of cultivation by a water level adjusting means. It is a figure which shows typically the state which adjusted the water level of a culture solution to a panel transport water level by a water level adjusting means. It is a figure which shows roughly the assembly procedure of a rack. It is a perspective view which shows typically the conventional cultivation bed. It is sectional drawing which shows schematic cross section of the conventional cultivation bed.

Next, a preferred embodiment of the article storage device according to the present invention will be described with reference to the drawings. It should be noted that the following embodiments do not limit the invention according to each claim, and not all combinations of features described in the embodiments are essential for the means of solving the invention. ..

As shown in FIGS. 1 to 3, the plant cultivation system 1 according to the present embodiment includes a plurality of plant cultivation devices 2 for cultivating plants, a rack 4 in which the plant cultivation devices 2 are arranged in multiple stages, and plants. It is provided with a lighting device 6 that illuminates the cultivation device 2. The plant cultivation system 1 includes various peripheral equipment normally possessed by the plant cultivation system, for example, a culture solution circulation facility for supplying a culture solution to each plant cultivation device 2 and collecting the culture solution from each plant cultivation device 2. , Each plant cultivation apparatus 2 is further equipped with various facilities such as temperature and humidity adjusting facilities such as a blower fan for adjusting the temperature and humidity, but since these configurations are well known, the description thereof will be omitted.

As shown in FIG. 1, the plant cultivation apparatus 2 is provided in a plurality of stages in the height direction of the rack 4 (Z direction in FIG. 1), and as shown in FIGS. 2 and 3, the depth direction of the rack 4 (the depth direction of the rack 4). A plurality of rows are also provided in the Y direction in FIG. In this embodiment, a total of 20 plant cultivation devices 2 are arranged in 10 steps in the height direction and 2 rows in the depth direction.

As shown in FIGS. 4 and 5, each plant cultivation device 2 includes a cultivation bed 10 formed in a tub shape capable of accommodating a culture solution, and a cultivation panel 20 placed on the cultivation bed 10. .. Further, as shown in FIGS. 6 and 7, each plant cultivation device 2 further includes a water level adjusting means 30 capable of adjusting the water level of the culture solution contained in the cultivation bed 10.

As shown in FIG. 4, the cultivation bed 10 includes a cultivation bed main body 10A having a substantially U-shaped cross section with both upper surfaces and both ends in the longitudinal direction open, and a pair of ends that close both ends of the cultivation bed main body 10A. It is provided with the member 10B, and is formed in a tub shape capable of accommodating the culture solution as a whole. In the present embodiment, the cultivation bed body 10A has a length in the longitudinal direction (X direction in FIG. 3) of, for example, about 3 m to 18 m, and a length in the lateral direction (Y direction in FIG. 3) of, for example, about 60 cm. It has a long shape, but is not limited to this, and the length in the longitudinal direction and the length in the lateral direction can be arbitrarily set.

The cultivation bed body 10A is formed by molding a metal plate material by roll forming. Here, roll forming is a sheet metal processing method for molding a flat material into a desired cross-sectional shape by using a plurality of sets of molding rolls. The cultivation bed main body 10A according to the present embodiment can be formed by such roll forming to form a large cultivation bed that is seamlessly continuous along the longitudinal direction, whereby the culture solution can be formed. It has the advantage that the risk of liquid leakage is extremely low.

Examples of the metal used for the cultivation bed main body 10A include galvalume steel, stainless steel, aluminum, copper, iron and the like, and galvalume steel and stainless steel are particularly preferable, but the metal is not limited thereto. Further, in order to prevent the occurrence of metal damage, it is preferable that the cultivation bed main body 10A is subjected to various known coating treatments for imparting resistance to the culture solution (corrosion prevention).

As shown in FIG. 4, the cultivation bed main body 10A has a long tub main body 12 that opens upward and a width direction (from the upper end of the side edge extending along the longitudinal direction of the tub main body 12). It has a flange portion 14 that extends outward (in the lateral direction). The tub body portion 12 and the flange portion 14 are integrally formed in the present embodiment, but the present invention is not limited to this, and the flange portion 14 formed as a separate member can be attached to and detached from the tub body portion 12. The configuration may be.

As shown in FIGS. 4 and 5, the tub main body portion 12 has a long bottom surface 12a extending along the longitudinal direction and left and right extending upward from the entire side edge extending along the longitudinal direction of the bottom surface 12a. It is formed in a substantially U-shaped cross section composed of a pair of side walls 12b.

The lower surface of the bottom surface 12a is configured to be able to reflect light from the lighting device 6 arranged below the bottom surface 12a. Examples of the configuration for reflecting such light include, for example, a configuration in which the lower surface of the bottom surface 12a is painted white and the entire or part of the lower surface of the bottom surface 12a is white, but the configuration is not limited thereto. Absent.

As shown in FIGS. 4 and 5, each side wall 12b has a lower wall portion 13a extending upward from the entire side edge of the bottom surface 12a and inclined outward and diagonally upward in the width direction from the upper end of the lower wall portion 13a. It has a panel support surface 13b extending from the upper end of the panel support surface 13b and an upper wall portion 13c extending upward from the upper end of the panel support surface 13b. It is preferable that the outer surface of each side wall 12b is also configured to be able to reflect the light from the lighting device 6 arranged below, similarly to the lower surface of the bottom surface 12a.

The bottom surface 12a and the pair of left and right lower wall portions 13a are configured to be able to form a culture solution storage space in which the culture solution is stored, as shown in FIG. 5, in a state where the end member 10B is attached. Further, the panel support surface 13b is configured to be able to support the edge portion of the cultivation panel 20. A flange portion 14 is provided at the upper end portion of the upper wall portion 13c.

As shown in FIG. 5, the panel support surface 13b is an inclined surface that is inclined with respect to the vertical direction. The panel support surface 13b is preferably a smooth surface over the entire longitudinal direction, but adopts various configurations such as a curved surface that is convex upward and a curved surface that is concave downward. It is possible.

The inclination angle θ of the panel support surface 13b can be arbitrarily set within a range of 1 ° or more and less than 90 °, preferably in the range of 1 ° to 60 °, and preferably 5 ° to 45 °. It is more preferably in the range of °. Here, the inclination angle θ of the panel support surface 13b means the inclination angle of the panel support surface 13b with respect to the horizontal direction when the cultivation bed main body 10A is placed on a horizontal plane, as shown in FIG.

By setting the inclination angle θ of the panel support surface 13b to an angle within such a range, algae (blue-green algae) are less likely to be generated even if the liquid adheres, and the contact area with the cultivation panel 20 is reduced. Since it can be formed, there are advantages such as less liquid accumulation and easy transportation of the cultivation panel 20.

As shown in FIG. 4, the flange portion 14 extends from the upper end portion of the upper wall portion 13c horizontally extending outward in the width direction from the width direction extending portion 14a and the tip portion of the width direction extending portion 14a. It is formed in an inverted L shape having a contact surface 14b that bends downward and extends. The contact surface 14b is a flat surface that is smooth along the vertical direction, and as shown in FIG. 5, can be surface-contacted with the contact surface 14b of the flange portion 14 of another cultivation bed 10 arranged adjacently. It is configured.

In this way, since the flange portion 14 has the extending portion 14a in the width direction and the contact surface 14b, as shown in FIG. 5, a space is formed between the flange portion 14 and the other cultivation beds 10 arranged adjacent to each other. Therefore, it is possible to improve the air cooling effect and efficiently diffuse the heat of the water and the culture solution in the cultivation bed 10. Further, when the contact surfaces 14b of the adjacent cultivation beds 10 are in surface contact with each other, the heat is conducted to each other, and the heat of the adjacent cultivation beds 10 can be made uniform. Further, since there is almost no gap between the contact surfaces 14b of the adjacent cultivation beds 10, it is possible to prevent light leakage from the lighting device 6 arranged below.

The end member 10B is a plate member having an outer shape that follows the shape of the end portion of the cultivation bed main body 10A, and is configured to be liquidtightly attached to the end portion so as to close the end portion of the cultivation bed main body 10A. ing. The end member 10B is preferably formed of metal like the cultivation bed body 10A, but is not limited thereto.

As shown in FIGS. 3 and 4, the cultivation panel 20 has a width (short of the cultivation bed body 10A) that can be hung from one panel support surface 13b of the cultivation bed body 10A to the other panel support surface 13b. It is formed in a plate shape having a length along the hand direction). The vertical length of the cultivation panel 20 (the length along the longitudinal direction of the cultivation bed main body 10A) can be arbitrarily set, and is divided into a plurality of parts in the longitudinal direction of the cultivation bed main body 10A, for example, as shown in FIG. It may be configured as a bed. In the case of the configuration divided into a plurality of parts in this way, there is an advantage that the cultivation panel 20 can be easily installed and collected as compared with the case where the cultivation panel 20 is made into a single piece. When a plurality of divided cultivation panels 20 are installed, it is preferable that they are arranged without gaps in order to prevent the transmission of light from the lighting device 6 arranged above the cultivation panels 20.

Further, as shown in FIGS. 3 and 4, the cultivation panel 20 is formed with a plurality of planting holes 22 for planting plants. The number and spacing of the planting holes 22 can be arbitrarily set according to the plant to be cultivated. Examples of plants to be cultivated include, but are not limited to, lettuce, herbs, mizuna, radishes, strawberries and the like, and various plants can be cultivated.

The cultivation panel 20 is preferably formed of a material that can float in water, and in this embodiment, it is formed of styrofoam. Further, it is preferable that the cultivation panel 20 is configured to be able to reflect the light from the lighting device 6 arranged on the upper part of the cultivation panel 20. Examples of the configuration for reflecting such light include, but are not limited to, using white Styrofoam as the cultivation panel 20 or painting the upper surface of the cultivation panel 20 in white.

As shown in FIGS. 6 and 7, the water level adjusting means 30 has an external pipe 32 for discharging the culture solution in the cultivation bed 10 and a first overflow pipe 34 and a second overflow pipe 36 having different heights. I have. The first overflow pipe 34 and the second overflow pipe 36 are replacement members that are selectively attached to the external pipe 32. That is, the water level adjusting means 30 according to the present embodiment is configured to be able to change the water level of the culture solution by exchanging the overflow pipes (first overflow pipe 34, second overflow pipe 36) attached to the external pipe 32. Has been done.

The first overflow pipe 34 is a pipe member mainly attached to the external pipe 32 when cultivating a plant, and as shown in FIG. 6, the water level of the culture solution is set to the support location of the cultivation panel 20 on the panel support surface 13b. It has a length in the height direction that can be adjusted to a lower water level (water level during cultivation). By attaching such a first overflow pipe 34 to the external pipe 32, it is possible to form a space (air layer) between the cultivation panel 20 and the liquid level of the culture solution during plant cultivation. Therefore, it is possible to block heat conduction from the upper side (cultivation panel 20 side) with respect to the culture solution. Further, since it is possible to suppress the adhesion of the culture solution to the cultivation panel 20, it is possible to suppress the growth of algae on the cultivation panel 20.

On the other hand, the second overflow pipe 36 is a pipe member mainly attached to the external pipe 32 at the time of installation and recovery of the cultivation panel 20, and as shown in FIG. 7, the water level of the culture solution is set to the panel support surface 13b. It has a length in the height direction that can be adjusted to a higher water level (water level during panel transportation) than the support point of the cultivation panel 20 in the above. By attaching such a second overflow pipe 36 to the external pipe 32, the cultivation panel 20 is placed on the culture solution when the cultivation panel 20 is installed on the cultivation bed 10 or when the cultivation panel 20 is collected from the cultivation bed 10. Can be floated, so that the cultivation panel 20 can be smoothly moved in the cultivation bed 10. In particular, since the cultivation panel 20 in which the plants are grown is heavy, the improvement in transport efficiency is remarkable.

The water level adjusting means 30 is not limited to the above-described configuration, and may include, for example, an overflow pipe (for example, a bellows-shaped overflow pipe) whose length in the height direction can be arbitrarily changed, or a plurality of drains (drainage). It is possible to adopt various arbitrary configurations such as a configuration in which the mouth) is formed at different height positions and the drain to be opened is appropriately switched.

As shown in FIGS. 1, 2 and 8, the rack 4 is formed by stacking a plurality of rack members 40 capable of supporting the plant cultivation device 2. Specifically, there are two racks 4 according to the present embodiment along the longitudinal direction (X direction in FIG. 1) of the cultivation bed 10 and 11 racks along the height direction (Z direction in FIG. 1). It is formed by a total of 22 rack members 40. The number of rack members 40 is not limited to the illustrated example, and can be arbitrarily adjusted.

As shown in FIG. 8, each rack member 40 is formed in a table shape having a top surface portion 42 on which the plant cultivation device 2 is placed and a plurality of leg portions 44 extending downward from the top surface portion 42. ing.

As shown in FIG. 8, the top surface portion 42 extends from one of the outer frame 42a formed in a rectangular ring (square shape) and the longitudinal direction of the outer frame 42a (longitudinal direction of the cultivation bed 10) to the other. The vertical beam 42b is hung from one side of the outer frame 42a (the side direction of the cultivation bed 10), and a plurality of cross beams 42c are hung from one side to the other side.

As shown in FIGS. 2 and 8, the outer frame 42a has a size capable of mounting two plant cultivation devices 2 in parallel along the lateral direction. The vertical beam 42b and the horizontal beam 42c are beams capable of reinforcing the strength of the outer frame 42a. The number of vertical beams 42b and horizontal beams 42c is not limited to the illustrated example, and can be changed as appropriate.

The vertical beam 42b is arranged at a substantially central portion of the outer frame 42a in the lateral direction, whereby, as shown in FIG. 2, the vertical beam 42b is configured to be located between the cultivation beds 10 and 10 arranged adjacent to each other. ing. By locating the vertical beams 42b between the cultivation beds 10 and 10 arranged adjacent to each other in this way, it is possible to further prevent light leakage from the lighting device 6 arranged below.

As shown in FIG. 8, the outer frame 42a has a connecting guide portion 46 into which the leg portion 44 is fitted at a position consistent with the leg portion 44 of the rack member 40 arranged in the upper stage. The connecting guide portion 46 is formed in a tubular shape formed in a U-shaped cross section, and has a size and a length so that the legs 44 of the rack member 40 arranged in the upper stage can be combined. .. Screw holes (not shown) are formed in the connecting guide portion 46 and the leg portions 44 of the rack member 40 arranged in the upper stage at positions consistent with each other, and the leg portions 44 are fitted to the connecting guide portion 46. In the state, it is configured so that they can be firmly connected to each other by using a fastening means such as a screw.

As shown in FIG. 8, a plurality of leg portions 44 are provided on the top surface portion 42, and in the present embodiment, they are provided at locations where the outer frame 42a, the vertical beam 42b, and the horizontal beam 42c intersect. Each leg portion 44 has a size and a length that can be fitted to the connecting guide portion 46 of the rack member 40 arranged in the lower stage.

As shown in FIGS. 1 and 2, the rack member 40 is configured so that a plurality of lighting devices 6 can be attached to the lower portion (lower surface) of the top surface portion 42. In particular, the rack member 40 has a space between the lower surface of the cultivation bed 10 of the plant cultivation device 2 placed on the top surface portion 42 and the lighting device 6 provided on the lower side of the top surface portion 42 of the rack member 40. The plant cultivation device 2 and the lighting device 6 are configured to be supportable so as to form the above. With such a configuration, it is possible to prevent heat conduction from the lighting device 6 installed in the lower stage to the cultivation bed 10 installed in the upper stage.

The rack 4 according to the present embodiment has the above configuration, and after installing the first-stage rack member 40, a pair of plant cultivation devices 2 are placed on the first-stage rack member 40. After that, the plant cultivation system 1 can be assembled by stacking the rack members 40 in the second stage by alternately repeating the installation of the rack members 40 and the placement of the plant cultivation device 2. Then, according to such a rack 4, it is possible to dramatically improve the installation efficiency of the plant cultivation device 2.

The lighting device 6 is provided on the lower side of the top surface portion 42 of the rack member 40, and is configured to illuminate the plant cultivation device 2 arranged at the lower stage of the rack member 40. It is preferable that the lighting device 6 is arranged apart from the lower surface so as to form a space between the lighting device 6 and the lower surface of the cultivation bed 10 arranged above the lighting device 6. Further, it is preferable that the lighting device 6 is arranged apart from the upper surface so that a space is formed between the lighting device 6 and the upper surface of the cultivation panel 20 arranged below the lighting device 6. The lighting device 6 may have a configuration capable of irradiating light necessary for growing a plant, and various known lighting devices such as an LED lighting lamp in which a plurality of LEDs are arranged in a straight line and a straight tubular fluorescent lamp are used. It is possible.

As described above, the cultivation bed 10 according to the present embodiment has a panel support surface 13b that supports the edge of the cultivation panel 20, and the panel support surface 13b is an inclined surface that is inclined with respect to the vertical direction. .. Then, according to the cultivation bed 10 according to the present embodiment, the liquid adhering to the panel support surface 13b can be dropped along the inclined surface to prevent retention, so that the growth of algae can be suppressed. It will be possible. Further, since the contact area with the cultivation panel 20 can be reduced, there is an advantage that the liquid pool is small and the cultivation panel 20 can be easily transported.

Further, the cultivation bed 10 according to the present embodiment has a flange portion 14 extending outward in the width direction from the upper end portion of the side edge (side wall 12b) extending along the longitudinal direction of the tub main body portion 12. .. According to the cultivation bed 10 according to the present embodiment as described above, since it is possible to form a space between the cultivation bed 10 and the other cultivation beds 10 arranged adjacent to each other, the air cooling effect is improved and the cultivation bed 10 is improved. It is possible to efficiently diffuse the heat of the water and the culture solution inside.

Further, the cultivation bed 10 according to the present embodiment has a contact surface 14b in which the flange portion 14 is in surface contact with the flange portion 14 of another cultivation bed 10 arranged adjacent to the flange portion 14. According to the cultivation bed 10 according to the present embodiment, the contact surfaces 14b of the adjacent cultivation beds 10 are in surface contact with each other, thereby conducting heat conduction with each other and uniformizing the heat between the adjacent cultivation beds 10. It becomes possible to make it. Further, since there is almost no gap between the contact surfaces 14b of the adjacent cultivation beds 10, it is possible to prevent light leakage from the lighting device 6 arranged below.

Further, the plant cultivation apparatus 2 according to the present embodiment further includes a water level adjusting means 30 capable of adjusting the water level of the culture solution contained in the cultivation bed 10, and the water level adjusting means 30 panels the water level of the culture solution. The water level at the time of cultivation is adjustable to be lower than the support portion of the cultivation panel 20 on the support surface 13b. According to the plant cultivation apparatus 2 according to the present embodiment as described above, since it is possible to form a space (air layer) between the cultivation panel 20 and the liquid level of the culture solution, the upper side with respect to the culture solution ( It is possible to block heat conduction from the cultivation panel 20 side).

Further, since the plant cultivation apparatus 100 of Patent Document 1 has a structure in which the seedling pot 108 comes into contact with the culture solution L, the culture solution L is sucked up into the seedling pot 108 due to a capillary phenomenon or the like, and the sucked up culture solution L When the seedling pot 108 is exposed to light, algae (blue-green algae) may be generated on the surface of the seedling pot 108. Further, in the plant cultivation apparatus 100 of Patent Document 1, algae (blue-green algae) generated on the surface of the seedling pot 108 may adhere to the plant P and the cultivation panel 104, and the plant P and the cultivation panel 104 may be contaminated. On the other hand, in the plant cultivation apparatus 2 according to the present embodiment, the water level of the culture solution can be adjusted to the above-mentioned water level at the time of cultivation by the water level adjusting means 30, so that the culture solution for the plant being cultivated and the cultivation panel 20 can be adjusted. Since it is possible to suppress the adhesion of algae, it is possible to suppress the generation and adhesion of algae in the cultivated plant and the cultivation panel 20.

Further, the plant cultivation apparatus 2 according to the present embodiment is configured such that the water level adjusting means 30 can adjust the water level of the culture solution to a water level during panel transportation higher than the support portion of the cultivation panel 20 on the panel support surface 13b. .. According to the plant cultivation apparatus 2 according to the present embodiment, the water level of the culture solution is set to the water level at the time of panel transportation when the cultivation panel 20 is installed on the cultivation bed 10 or when the cultivation panel 20 is collected from the cultivation bed 10. By adjusting to, the cultivation panel 20 can be floated on the culture solution, and the cultivation panel 20 can be smoothly moved in the cultivation bed 10. In particular, since the cultivation panel 20 in which the plants are grown is heavy, the improvement in transport efficiency is remarkable. Further, the configuration of the water level adjusting means 30 and the configuration that the panel support surface 13b is an inclined surface and the contact area with the cultivation panel 20 is small can be combined to dramatically improve the transport efficiency of the cultivation panel 20. It becomes. Further, since the panel support surface 13b is an inclined surface, there is an advantage that a puddle is unlikely to occur even if the water level is raised in this way.

Further, the cultivation bed 10 according to the present embodiment is made of metal. According to the cultivation bed 10 according to the present embodiment, the rigidity is higher than that of the cultivation bed made of ABS, resin, styrofoam, etc., water leakage can be prevented, and heat dissipation performance can be improved. Since it can be increased, it is possible to cultivate in an environment of almost the same temperature as room temperature (about + 1 ° C in the verification of the preliminary test). In addition, since the cultivation bed 10 is made of a metal having high conductivity, there is an advantage that it is easy to ground.

Further, the cultivation bed 10 according to the present embodiment is formed by roll forming. According to the cultivation bed 10 according to the present embodiment as described above, it is possible to form a large cultivation bed that is seamlessly continuous along the longitudinal direction, whereby water leakage can be almost completely prevented. It becomes.

Further, in the plant cultivation system 1 according to the present embodiment, the rack 4 has a table-like shape having a top surface portion 42 on which the plant cultivation device 2 is placed and leg portions 44 extending downward from the top surface portion 42. It is formed by stacking a plurality of rack members 40. According to the plant cultivation system 1 according to the present embodiment, after installing the first-stage rack member 40, a pair of plant cultivation devices 2 are placed on the first-stage rack member 40, and then. Since it is possible to assemble the plant cultivation system 1 by stacking the rack members 40 in the second stage by alternately repeating the installation of the rack members 40 and the placement of the plant cultivation device 2, the plant cultivation device 1 can be assembled. It is possible to dramatically improve the installation efficiency of 2.

Further, the plant cultivation system 1 according to the present embodiment has a connecting guide portion 46 at a position where the rack member 40 is aligned with the leg portion 44 of the rack member 40 arranged in the upper stage. According to the plant cultivation system 1 according to the present embodiment as described above, it is possible to improve the work efficiency when stacking the rack members 40.

Further, in the plant cultivation system 1 according to the present embodiment, the rack member 40 is placed between the lower surface of the cultivation bed 10 placed on the top surface portion 42 and the lighting device 6 provided on the lower side of the top surface portion 42. The plant cultivation device 2 and the lighting device 6 are configured to be supportable so that a space is formed in the room. According to the plant cultivation system 1 according to the present embodiment, it is possible to prevent heat conduction from the lighting device 6 installed in the lower stage to the cultivation bed 10 installed in the upper stage.

Further, in the plant cultivation system 1 according to the present embodiment, the lower surface of the cultivation bed 10 is configured to be able to reflect the light from the lighting device 6. According to the plant cultivation system 1 according to the present embodiment as described above, it is possible to reflect light and heat by the lower surface of the cultivation bed 10 to further prevent heat conduction. Further, since the lower surface of the cultivation bed 10 can be used as a reflector for lighting, it is economical and has an advantage that the number of parts is small and it is rational as compared with the case where a separate reflector is provided. Have.

Furthermore, in the plant cultivation system 1 according to the present embodiment, since the cultivation panel 20 is configured to be able to reflect the light from the lighting device 6, it is possible to prevent heat conduction to the culture solution.

Although the preferred embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the scope described in the above-described embodiments. Various changes or improvements can be made to each of the above embodiments.

1: Plant cultivation system 2: Plant cultivation device 4: Rack 6: Lighting device 10: Cultivation bed 10A: Cultivation bed body 10B: End member 12: Pail body 12a: Bottom surface 12b: Side wall 13a: Lower wall 13b: Panel support Surface 13c: Upper wall portion 14: Flange portion 14a: Width direction extension portion 14b: Contact surface 20: Cultivation panel 22: Planting hole 30: Water level adjusting means 32: External piping 34: First overflow pipe 36: First Overflow pipe 40: Rack member 42: Top surface 42a: Outer frame 42b: Vertical beam 42c: Horizontal beam 44: Leg 46: Connection guide

Claims (12)

A plant cultivation apparatus including a cultivation bed formed in a tub shape capable of accommodating a culture solution and a cultivation panel placed on the cultivation bed.
The cultivation bed has a panel support surface that supports the edge of the cultivation panel.
The plant cultivation apparatus, wherein the panel support surface is an inclined surface that is inclined with respect to the vertical direction. The cultivation bed has a long tub body portion that opens upward and a flange portion that extends outward in the width direction from the upper end portion of the side edge extending along the longitudinal direction of the tub body portion. The plant cultivation apparatus according to claim 1, wherein the plant cultivation apparatus is provided. The plant cultivation apparatus according to claim 2, wherein the flange portion has a contact surface capable of surface contact with a flange portion of another cultivation bed arranged adjacent to the flange portion. Further provided with a water level adjusting means capable of adjusting the water level of the culture solution contained in the cultivation bed,
Claim 1 to any one of claims 1 to 3, wherein the water level adjusting means is configured so that the water level of the culture solution can be adjusted to a water level at the time of cultivation lower than the support portion of the cultivation panel on the panel support surface. The plant cultivation apparatus described in. The plant cultivation according to claim 4, wherein the water level adjusting means is configured so that the water level of the culture solution can be adjusted to a water level during panel transportation higher than the support portion of the cultivation panel on the panel support surface. apparatus. The plant cultivation apparatus according to any one of claims 1 to 5, wherein the cultivation bed is made of metal. The plant cultivation apparatus according to claim 6, wherein the cultivation bed is formed by roll forming. The plant cultivation apparatus according to any one of claims 1 to 7.
A plant cultivation system including a rack in which the plant cultivation apparatus is arranged in multiple stages.
The rack is characterized in that it is formed by stacking a plurality of table-shaped rack members having a top surface portion on which the plant cultivation apparatus is placed and leg portions extending downward from the top surface portion. Plant cultivation system. The plant cultivation system according to claim 8, wherein the rack member has a connecting guide portion into which the leg portion is fitted at a position consistent with the leg portion of the rack member arranged in the upper stage. A lighting device provided on the lower side of the top surface portion of the rack member and illuminating the plant cultivation device arranged in the lower stage of the rack member is further provided.
In the rack member, a space is formed between the lower surface of the cultivation bed of the plant cultivation device mounted on the top surface portion and the lighting device provided on the lower side of the top surface portion of the rack member. The plant cultivation system according to claim 8 or 9, wherein the plant cultivation device and the lighting device are configured to be supportable. The plant cultivation system according to claim 10, wherein the lower surface of the cultivation bed is configured to reflect light from the lighting device. The plant cultivation system according to claim 10 or 11, wherein the cultivation panel is configured to be able to reflect light from the lighting device.

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