JP2018019612A - Hydroponic cultivation plate, and connection structure of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hydroponic cultivation plate and a connection structure thereof which achieve higher efficiency of cultivation work while promoting the growth of plants by supplying carbonic acid gas.SOLUTION: A hydroponic cultivation plate comprises: a plate-like body having holding holes for plant; and a transfer emission tube for gas having an inlet port provided for one end, an outlet port provided for the other end and, emission holes provided for a sidewall, in which the transfer emission tube for gas is arranged on the top face of the plate-like body, and gas input from the inlet port can be emitted from the emission holes.SELECTED DRAWING: Figure 1

Description

  The present invention makes it possible to supply carbon dioxide gas while increasing the efficiency of cultivation work, and to make the cultivation environment more appropriate, and to connect a plurality of the plates for hydroponics Concerning structure.

  In recent years, it is not necessary to use soil, high-density production is possible in a small indoor space, temperature and humidity can be adjusted without being affected by the weather, and contamination by germs and insects is eliminated. Hydroponic cultivation equipment has been attracting attention because of its many advantages such as being easy to do.

  As a structure of the hydroponic cultivation apparatus, for example, a plurality of elongated plate-like spacing cassettes holding a plant are arranged in parallel, and an external pressure or the like is applied to the plant by increasing the distance between the spacing cassettes according to the growing situation of the plant. A fixed planting unit that performs cultivation without giving a burden has been proposed (see, for example, Patent Document 1).

  The hydroponic cultivation apparatus having a planting unit as described above is an invention that suppresses light competition caused by contact and overlap between plants due to the progress of plant growth. It does not improve efficiency.

  On the other hand, a porous pipe for supplying carbon dioxide gas is arranged near the plant, and a predetermined amount of carbon gas is released from the porous pipe according to the concentration of carbon gas in the plant depopulated area in the apparatus and supplied to the plant. An invention has been proposed (see, for example, Patent Document 2). In the present invention, carbon dioxide necessary for a plant is appropriately supplied, and the growth of the plant 111 can be promoted by increasing the speed in photosynthesis.

Japanese Patent Laid-Open No. 9-23774 JP 2015-43711 A

  However, in the hydroponic cultivation apparatus as described above, since a long porous pipe is disposed in the vicinity of the plant in order to supply carbon dioxide, the plate for holding the plant interferes with the porous pipe. Therefore, the plate could not be moved and manipulated easily. In addition, the plates used for hydroponics are in the direction of thinning, and when performing operations such as sliding the side surfaces of the plurality of plates in contact with each other, the contact relationship between the plates collapses and overlaps. There was a problem.

  Here, paying attention to the structure of the plate and the porous pipe, there is a problem in the arrangement position of both, and it is clear that the structures of separate parts inevitably interfere with each other, and there is still room for improvement. was there.

  Therefore, in view of the above problems, the present invention is a hydroponics plate that achieves high efficiency of cultivation work while efficiently and reliably supplying carbon dioxide gas to a cultivated product (plant) to promote its growth. And it aims at providing the connection structure.

In order to solve the above problems, the present invention provides:
A plate-like body 1A having a holding hole for plants;
A gas transfer discharge pipe 1B having an inlet 7 provided at one end, a spout 9 provided at the other end, and a discharge hole 11 provided in a side wall;
Comprising
The gas transfer / discharge pipe 1B is disposed on the upper surface of the plate-like body 1A, and the gas injected from the injection port 7 can be discharged from the discharge hole;
A hydroponics plate 1 is provided.

  In the hydroponic plate 1 of the present invention having such a configuration, a plate-like body 1A that is the main body of the plate and a gas containing an appropriate amount (400 to 2000 ppm) of carbon dioxide and carbon dioxide required for photosynthesis are supplied. Therefore, the interference between the two during the cultivation work can be prevented. Moreover, since the gas transfer / discharge tube 1B has the carbon dioxide gas inlet 7 and the spout 9, it can be connected to another hydroponic plate 1.

  In the hydroponics plate 1 of the present invention, it is preferable that the gas discharge hole 11 is directed substantially upward.

  According to such a configuration, the carbon dioxide gas discharge hole 11 provided in the gas transfer / discharge pipe 1B faces substantially upward, so that carbon dioxide necessary for photosynthesis is released above the hydroponics area 101. And can be efficiently supplied to the leaves of plants.

  Further, in the hydroponics plate 1 of the present invention, a plurality of the hydroponic culture plates described above are provided in parallel, and the gas transfer / discharge pipe of the adjacent hydroponic culture plate includes: It is preferable that the connection is made with a hollow pipe connector while the inside is in communication.

  According to such a configuration, when the plurality of hydroponics plates 1 are arranged in parallel, the gas transfer / discharge pipes 1 </ b> B included in each can be connected using the pipe connector 21. The pipe connector 21 has a first end portion 23 and a second end portion 25, and both ends of a gas guide path 27 provided inside are connected to the first end portion 23 and the second end portion 25. Has been placed. The gas guiding path 27 is a hollow layer provided inside the pipe connector 21, and communicates with the outside via the first end portion 23 and the second end portion 25. For this reason, the pipe connector 21 is connected to each of the two gas transfer / discharge pipes 1B by inserting the first end 23 or the second end 25 so as to communicate with each other. Each hydroponics plate 1 provided with the gas transfer discharge pipe 1B can be fixed.

  Moreover, in the hydroponics plate 1 of this invention, the injection port provided in the one end of the said gas transfer pipe and the spout provided in the other end may be comprised so that connection is possible. In this case, when a plurality of hydroponics plates 1 are juxtaposed without using a pipe connector as described above, they are adjacent to the inlet of the gas transfer discharge pipe 1B of a certain hydroponic culture plate 1. The spout of the hydroponics plate 1B can be connected.

  Furthermore, in the hydroponic plate 1 of the present invention, the outer diameter of the pipe connector is inclined to decrease from the substantially intermediate portion toward one end and the other end in the length direction of the pipe connector. It is preferable to have a part.

  According to such a structure, since the pipe connector 21 is substantially barrel-shaped, it has the side wall top part 29 where an outer diameter becomes the largest in the substantially intermediate part, and from the side wall top part 29, it is the 1st end part 23. And the second end portion 25 and the inclined portion 31 inclined toward each of the second end portion 25. For this reason, the first end 23 and the second end 25 of the pipe connector 21 are simply inserted into the gas transfer / discharge pipe 1B so that the inclined portion 31 abuts on the gas transfer path 5 so that two pipes can be easily provided. The gas transfer / discharge pipe 1B can be connected.

  Moreover, in the case where the hydroponics plate 1 of the present invention is configured so that the inlet provided at one end of the gas transfer pipe and the spout provided at the other end can be connected as described above. The present invention comprises a plurality of such hydroponics plates arranged in parallel, and one gas transfer / discharge pipe of the adjacent hydroponics plate is communicated with the other gas transfer pipe. It is related also to the connection structure of the plate for hydroponics characterized by being connected.

It is a schematic diagram which shows the outline | summary of the hydroponic cultivation using the plate 1 for hydroponic cultivation which concerns on this embodiment. It is a figure which shows the detailed structure of the plate 1 for hydroponics in this embodiment, Comprising: Fig.2 (a) is a top view of the plate 1 for hydroponics, FIG.2 (b) is FIG. It is sectional drawing of the plate 1 for main hydroponics which looked at the sectional view in the arrow line A shown to a). It is a figure which shows the detailed structure of the pipe connector 21 shown in FIG. 1, Comprising: Fig.3 (a) is a top view of the pipe connector 21, FIG.3 (b) is the arrow line shown in Fig.3 (a). FIG. 3C is a cross-sectional view of the tube connector 21 as viewed in section B, and FIG. 3C is a cross-sectional view of the tube connector 21 as viewed in the direction of arrow C shown in FIG. It is the schematic diagram which showed the connection method of the transfer / discharge pipe | tube 1B for gas shown in FIG. It is a figure which shows the structure of the plate 801 for hydroponics which has another shape, Comprising: Fig.5 (a) is a top view of the plate 801 for hydroponics which has another shape, FIG.5 (b) It is sectional drawing which shows the state which connected the plate 801 for hydroponics which has another shape. It is the schematic diagram which showed the flow until a carbon dioxide gas reaches | attains the hydroponic cultivation area 101 via the some gas discharge | release pipe | tube 1B connected from the gas supply source 115. FIG. It is a schematic diagram which shows the example of cultivation work using the slide of the plate 1 for hydroponics in this embodiment.

  Hereinafter, typical embodiment of the hydroponics plate 1 which concerns on this invention is described in detail, referring FIGS. However, the present invention is not limited to what is shown in the drawings, and each drawing is for conceptual description of the present invention. Therefore, the dimensions, ratios, or numbers are exaggerated as necessary for easy understanding. Or it may be expressed in a simplified manner. Further, in the following description, the same or corresponding parts are denoted by the same reference numerals, and redundant description may be omitted.

<Outline of hydroponics using the main hydroponics plate 1>
The outline of hydroponics using the hydroponics plate 1 in this embodiment is demonstrated using FIG. Drawing 1 is a mimetic diagram showing an outline of hydroponics using plate 1 for hydroponics concerning this embodiment.

  As shown in FIG. 1, the hydroponics plate 1 of the present embodiment is used for a hydroponic cultivation apparatus 100 that prepares an environment necessary for cultivation without using soil and enables cultivation of plants 111 indoors. It is a board of this, Comprising: By fixing the plant 111 to the plate 1 for hydroponics, the said plant 111 can be grown stably.

  The hydroponic cultivation apparatus 100 includes a substantially box-shaped hydroponic cultivation area 101 configured by combining a plurality of structures such as predetermined plates and pillars, and includes a plurality of beams 107 passed into the hydroponic cultivation area 101. In addition, a roller type conveyor 105 that rotates in the sliding direction Y is provided on the upper surface of the beam 107.

  The hydroponics plate 1 of the present embodiment is disposed above the roller conveyor 105 so as to be slidable in the sliding direction Y, and a plurality of the plates are used in parallel on the roller conveyor 105. Can do. Further, a long hydroponics tank 103 capable of storing a nutrient solution 113 for promoting the growth of the plant 111 is disposed between the main hydroponics plate 1 and the beam 107. The roots of the plant 111 fixed on the cultivation plate 1 are immersed in the nutrient solution 113.

  Here, the hydroponics plate 1 of the present embodiment is provided with a gas transfer / discharge pipe 1B for supplying carbon dioxide gas capable of promoting photosynthesis of the plant 111. The gas transfer / discharge pipe 1B can efficiently supply carbon dioxide to the plant 111 by injecting carbon dioxide into the pipe from outside. Furthermore, since the foliar boundary layer can be broken down, photosynthesis is further promoted and plant growth is improved. And since airflow is made, the environment of the temperature and humidity of the hydroponics tank 103 becomes uniform, and it can prevent the defect by growth unevenness, withering of a lower leaf, etc.

  As described above, a plurality of the hydroponic culture plates 1 can be used in parallel. Therefore, in the present invention, each of the gas transfer and release pipes 1B provided individually for the hydroponic culture plate 1 is used as a pipe. It also has a connection structure in which a plurality of main hydroponics plates 1 are connected in parallel while being connected by the connection tool 21. As a result, a plurality of hydroponics plates 1 are integrally connected. Even if the plurality of hydroponics plates 1 are slid in the sliding direction Y, each hydroponics plate 1 is It is possible to suitably prevent problems on the work such as riding and overlapping.

  In addition, when the hydroponics plate 1 has a plurality of gas transfer / discharge pipes and a connection structure in which the hydroponics plates 1 are arranged in parallel, a force is applied to the plurality of gas transfer / discharge pipes. As a result, the plates can be prevented from meandering after being connected.

<Hydroculture plate 1>
Next, details of the hydroponics plate 1 in the present embodiment will be described with reference to FIGS. 2 (a) and 2 (b). 2A and 2B are diagrams showing a detailed structure of the hydroponics plate 1 in the present embodiment, and FIG. 2A is a plan view of the hydroponics plate 1. FIG. 2B is a cross-sectional view of the main hydroponics plate 1 as viewed in cross section along the arrow line A shown in FIG. As shown in FIGS. 2 (a) and 2 (b), the hydroponics plate 1 is composed of a plate-like body 1A that is a main body and a gas transfer / discharge pipe 1B that transfers and releases carbon dioxide. ing.

  The plate-like body 1 </ b> A is a plate having a substantially rectangular planar shape, and includes a plurality of plant holding holes 3 penetrating from the front surface to the back surface at a predetermined position. The hydroponics plate 1 can hold the plant 111 by the plant holding hole 3, and the plant 111 has leaves arranged on the front side from the plant holding hole 3 and roots arranged on the back side. Is done. In addition, since the size of the plate-like body 1A can be arbitrarily determined in consideration of the size and structural rigidity of the hydroponic cultivation apparatus 100 to be used, the number of the plant holding holes 3 is also concerned. It is desirable to determine according to the size of the plate-like body 1A.

  The gas transfer / discharge pipe 1B is a long cylinder configured by using, for example, a resin pipe made of vinyl chloride resin or the like, and has a gas transfer path 5 penetrating in the longitudinal direction. Both ends of the gas transfer path 5 communicate with the outside through the small facets at both ends of the gas transfer / discharge pipe 1B, and one end is an injection port 7 for injecting carbon dioxide into the gas transfer path 5. The other is an extraction hole 9 for discharging the carbon dioxide gas in the gas transfer path 5 to the outside. Other members can also be made using various hard or soft resins.

  Further, the side wall of the gas transfer / discharge pipe 1 </ b> B is provided with a discharge hole 11 communicating the hydroponics area 101 and the gas transfer path 5, and the carbonic acid injected into the gas transfer path 5 through the discharge hole 11. The gas can be released to the hydroponics area 101. Specifically, the carbon dioxide gas injected from the inlet 7 into the gas transfer / discharge pipe 1B moves through the gas transfer path 5, and then is discharged from the discharge hole 11 to the hydroponics area 101, where the hydroponics is performed. Supplied to the plant 111 in the area 101. The number of the discharge holes 11 is preferably determined by the number and arrangement of the plant holding holes 3 in the plate-like body 1A.

  The gas transfer / discharge tube 1B is fixed with the side wall in contact with the surface of the plate-like body 1A. In addition, the gas transfer / discharge pipe 1B is fixed at a position substantially parallel to a slide direction Y (rotation direction of the roller conveyor 105) in which the hydroponics plate 1 is slid, and a plurality of positions in the plate-like body 1A. It is desirable to select a position where carbon dioxide gas can be supplied to each plant 111 held in the plant holding hole 3 without any bias. Accordingly, the hydroponics plate 1 of the present embodiment includes one gas transfer / discharge tube 1B per sheet, but depending on the size of the hydroponics plate 1 and the number of plant holding holes 3. It is good also as a structure provided with two or more.

  When the gas transfer / discharge pipe 1B is fixed to the plate-like body 1A, when the hydroponics plate 1 is transferred by an automatic transfer machine, the automatic transfer machine is held in the gas transfer / discharge pipe 1B. By inserting a projection or the like, gripping becomes easy and the transfer is stabilized.

<Pipe connection>
Next, details of the pipe connector 21 will be described with reference to FIGS. 3 (a), 3 (b), and 3 (c). 3A, 3B, and 3C are views showing the detailed structure of the pipe connector 21 shown in FIG. 1, and FIG. 3A is a plan view of the pipe connector 21, FIG. FIG. 3B is a cross-sectional view of the tube connector 21 as viewed in the direction of the arrow B shown in FIG. 3A, and FIG. 3C is a view of the tube as viewed in the direction of the arrow C shown in FIG. It is sectional drawing of the connection tool. As shown in FIGS. 3A, 3B, and 3C, the pipe connector 21 is a substantially barrel-shaped component having a predetermined plasticity, and includes a first end 23, a second end 25, and The gas guide path 27 penetrating the two end portions, the side wall top portion 29, and the inclined portion 31 are provided.

  The first end portion 23 and the second end portion 25 have no difference in shape, and both ends of a gas guide path 27 provided inside are disposed. The gas guiding path 27 is a hollow layer provided inside the pipe connector 21, and communicates with the outside via the first end portion 23 and the second end portion 25. Moreover, since the pipe connector 21 is substantially barrel-shaped as mentioned above, it has the side wall top part 29 where an outer diameter becomes the largest in the substantially intermediate part in planar view of Fig.3 (a).

  Since the side wall of the pipe connector 21 has inclined portions 31 inclined toward the first end portion 23 and the second end portion 25 from the substantially intermediate side wall top portion 29, respectively. There is a difference between the outer diameter at the position of the side wall top 29 shown in FIG. 3B and the outer diameter of the first end 23 and the second end 25 shown in FIG. The outer diameters of the first end portion 23 and the second end portion 25 are smaller than the outer diameter. Therefore, the outer diameter of the pipe connector 21 has a feature that it gradually increases from the position of the first end portion 23 and the second end portion 25 toward the side wall top portion 29.

<Connection method of hydroponics plate 1>
Next, a method for connecting the gas transfer / discharge pipe 1B provided in the hydroponic plate 1 according to the present embodiment will be described with reference to FIG. FIG. 4 is a schematic diagram showing a method of connecting the gas transfer / discharge pipe 1B shown in FIG. As shown in FIG. 4, the gas transfer / discharge pipe 1 </ b> B is connected when a plurality of main hydroponics plates 1 are juxtaposed for hydroponics. For example, when hydroponics is performed using only the plate 1, it can be used without being connected.

  As a connecting procedure, first, the roller-type conveyor 105 serving as the upper end of the shelf of the hydroponic cultivation apparatus 100 is directed to the front side with the inlet 207 of the gas transfer / discharge pipe 201B in the first hydroponic cultivation plate 201 being long. The main hydroponics plate 201 is disposed in a state where the direction is substantially parallel to the slide direction Y.

  Next, the pipe connector 21 is prepared, and the inlet 207 in the gas transfer / discharge pipe 201B of the hydroponic cultivation plate 201 in which the first end 23 of the pipe connector 21 is disposed on the roller conveyor 105. Insert into. At this time, the gas guiding path 27 and the gas transfer / discharge pipe 201B are arranged so as to be substantially straight so that the axes of the pipe connector 21 and the gas transfer / discharge pipe 201B are not misaligned.

  Subsequently, the main hydroponics plate 201 is slid in the sliding direction Y by the rotation of the roller conveyor 105 to move a predetermined distance, and the gas transfer / discharge pipe 301B in the second hydroponic culture plate 301 is poured. The main hydroponics plate 301 is disposed with the entrance 307 facing forward and the longitudinal direction being substantially parallel to the slide direction Y.

  Next, the position of the pipe connector 21 inserted into the inlet 207 of the gas transfer / discharge pipe 201B in the first hydroponics plate 201 is confirmed, and the second end 25 of the pipe connector 21 is It inserts in the spout 309 of the gas transfer discharge pipe 301B in the second hydroponics plate 301. At this time, the gas guide path 27 and the gas transfer / discharge pipe 301B are arranged so as to be substantially straight so that the axes of the pipe connector 21 and the second gas transfer / discharge pipe 301B are not misaligned. .

  Thereby, the connection between the gas transfer / discharge pipe 201B of the first hydroponic cultivation plate 201 and the gas transfer / discharge pipe 301B of the second hydroponic culture plate 301 is achieved, and further, the connection causes the first The connection between the first hydroponics plate 201 and the second hydroponics plate 301 is completed.

  In the present description, the two plates are connected using the first hydroponics plate 201 and the second hydroponics plate 301, but the same procedure is repeated as shown in FIG. Further, a plurality of plates can be connected in parallel by connecting the gas transfer / discharge tubes 1B in parallel.

  For ease of understanding, there are some gaps between the hydroponics plates 1 to be connected in the figure, but it is preferable to integrate them without actually forming a gap. This is because if there is no gap, light does not enter the hydroponic cultivation tank holding the nutrient solution and the generation of algae is suppressed.

<Hydroculture plate with other shapes>
In the above, the connection method using the typical hydroponic plate 1 and the pipe connector 21 in the present embodiment has been described, but by using the hydroponic plate 801 having other shapes, Connection can be further simplified. Hereinafter, the structure of the hydroponics plate 801 which is a modified example having another shape will be described with reference to FIGS.

  FIGS. 5A and 5B are views showing the structure of a hydroponics plate 801 having another shape, and FIG. 5A is a diagram of the hydroponic plate 801 having another shape. FIG. 5B is a cross-sectional view showing a state where plates for hydroponics 801 having other shapes are connected.

  As shown to Fig.5 (a), the plate 801 for hydroponics which has another shape is comprised with the plate state 801A which becomes a main body in general, and the transfer discharge pipe 801B for gas which transfers and discharge | releases a carbon dioxide gas. The plate-like body 801A and the gas transfer / discharge pipe 801B have the same structure as the plate-like body 1A and the gas transfer / discharge pipe 1B provided in the hydroponics plate 1 described above, The plate-like body 801A has a plant holding hole 803, and the gas transfer / discharge pipe 801B has a gas transfer path 805, an injection port 807, a spout 809, and a discharge hole 811.

  This hydroponics plate 801 includes a connecting projection 813 for connecting a plurality of plates to one end (injection port or spout) of the gas transfer / discharge pipe 801B, and the other end (spout port). (Or the injection port) is characterized in that it includes a connection recess 815 that fits with the connection protrusion 813. The connection convex portion 813 is a substantially cylindrical convex portion whose diameter gradually decreases from the connection position with the gas transfer / discharge pipe 801B toward the outside, and the connection concave portion 815 is connected to the gas transfer / discharge pipe 801B. It is a substantially cylindrical recess whose diameter gradually decreases from the connection position toward the inside.

  The hydroponics plate 801 can simplify the connection between the plates by using the connection convex portions 813 and the connection concave portions 815 provided at both ends of the gas transfer / discharge pipe 801B. More specifically, as shown in FIG. 5B, for example, when connecting the first plate 901 and the second plate 1001, the connection convex portion 913 in the first plate 901, The first plate 901 without using the pipe connector 21 separately by inserting and fitting the connection convex portion 913 into the connection concave portion 1015. A connection with the second plate 1001 can be achieved. <Flow of carbon dioxide>

  Next, a flow until carbon dioxide reaches the hydroponics area 101 through a plurality of gas transfer / discharge pipes 1B connected from the gas supply source 115 will be described with reference to FIG. FIG. 6 is a schematic diagram showing a flow until carbon dioxide reaches the hydroponic cultivation area 101 through a plurality of gas transfer / discharge pipes 1B connected from the gas supply source 115.

  In this description, the first gas transfer / discharge tube 401B, the second gas transfer / discharge tube 501B, the third gas transfer / discharge tube 601B, and the fourth gas transfer / discharge tube 701B are connected. The flow of carbon dioxide gas until the plant 111 is supplied will be described.

  As shown in FIG. 6, the carbon dioxide gas is first released from the gas supply source 115 and then enters the gas transfer path 405 from the inlet 407 in the first gas transfer / discharge pipe 401B connected to the gas supply source 115. Then, it is transferred to the spout 409 side according to the discharge pressure of the gas supply source 115. At the same time, the carbon dioxide gas in the gas transfer path 405 is released from the discharge hole 411 to the cultivation area 101. As a result, the carbon dioxide gas is supplied to the plant 111 held in the vicinity of the discharge hole 411.

  The carbon dioxide gas transferred to the spout 409 moves from the first end 423 of the first pipe connector 421 to the gas guiding path 427 and further transfers to the second gas via the second end 425. The gas enters the gas transfer path 505 of the discharge pipe 501B. Next, the carbon dioxide gas is transferred to the spout 509 side according to the discharge pressure of the gas supply source 115, and at the same time, the carbon dioxide gas in the gas transfer path 505 is released from the discharge hole 511 to the cultivation area 101. As a result, the carbon dioxide gas is supplied to the plant 111 held in the vicinity of the discharge hole 511.

  Subsequently, the carbon dioxide gas transferred to the spout 509 is similar to the transfer from the first gas transfer / discharge pipe 401B to the second gas transfer / discharge pipe 501B and the discharge to the hydroponic cultivation area 101 described above. In the flow, the gas is transferred to the third gas transfer / discharge pipe 601B and the fourth gas transfer / discharge pipe 701B, and is discharged from the discharge holes 611 and 711 provided to the hydroponics area 101 to the neighboring plants. Will be supplied.

  Further, a lid 117 for stopping the release of carbon dioxide gas is attached to the spout 709 of the fourth gas transfer / discharge pipe 701B, so that the first gas transfer / discharge pipe 401B and the second gas transfer / discharge pipe 501B are provided. , The third gas transfer / discharge pipe 601B and the fourth gas transfer / discharge pipe 701B can be kept substantially constant, and approximately the same amount from the respective discharge holes 411, 511, 611, 711. It is possible to release carbon dioxide gas.

  By supplying carbon dioxide to the plant 111 cultivated using the hydroponic cultivation apparatus 100 as described above, the speed of photosynthesis increases, and cell division of the plant 111 becomes active and promotes growth. it can. Of course, other factors necessary for photosynthesis, such as the amount of light supplied and the temperature environment, should be suitably adjusted, and the amount of carbon dioxide supplied and the concentration conditions should be optimized according to the plant 111 to be cultivated. Generally, the carbon dioxide concentration is adjusted to 400 to 2000 ppm.

<Efficiency of cultivation work and effect of connection>
Next, the example of cultivation work using the slide of the hydroponics plate 1 of this embodiment is demonstrated using FIG. FIG. 7 is a schematic diagram showing an example of cultivation work using a slide of the hydroponics plate 1. When the hydroponics plate 1 of this embodiment is used in the hydroponic area 101 having a small volume, the hydroponic culture plate 1 can be used without moving the position from the start to the end of the cultivation. When using it in the hydroponic cultivation area 101 having the above, it is possible to increase the efficiency of the cultivation work by utilizing the shape of the hydroponic cultivation area 101.

  As shown in FIG. 7, when using a plurality of main hydroponic culture plates 1 in parallel, each main hydroponic culture plate 1 is slid to perform the cultivation work in accordance with the growth status of the plants 111. Can do. Specifically, both ends in the sliding direction Y of the hydroponic cultivation apparatus 101 are set as a planting side 119 and a harvesting side 121 of the plant 111, respectively, and the hydroponic culture plate 1 is disposed from the planting side 119. Then, after the plant 111 held by the hydroponics plate 1 has been grown to a predetermined state, the hydroponics plate 1 prepared separately is slid in the sliding direction Y while being connected.

  By adding a new hydroponics plate 1 from the planting side 119 according to the growing status of the plants 111 held on each hydroponics plate 1 using the same procedure as described above, the predetermined growing status is obtained. The hydroponics plate 1 that holds the reached plant 111 is slid to the harvesting side 121, and the hydroponics plate 1 that holds the plant 111 that has reached a predetermined growth state is taken out from the harvesting side 121 and harvested. It is something that can be done. By using the cultivation method, the planting side 119 and the harvesting side 121 can be clarified, and the hydroponics plate 1 located in a place that is not directly reachable in the back of the hydroponics area 101 or the like is indirectly The cultivation operation can be performed by sliding operation.

  By implementing the said cultivation method using the plate 1 for hydroponics of this embodiment, each plate 1 for hydroponics is fixed integrally by the pipe connector 21, and also a pipe connector in the slide direction Y 21 enters into each gas transfer discharge pipe 1B. As a result, the hydroponics plate 1 and the pipe connector 21 achieve a linear connection, and the cultivation plate interferes with the gas transfer / discharge pipe when the plate is added or removed on the planting side or the harvesting side of the plant. There is no problem with the prior art. Moreover, it becomes possible to prevent suitably the malfunction on work, such as each hydroponics plate 1 getting on and overlapping at the time of a slide.

  The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to these embodiments, and other embodiments may be used without departing from the spirit and teaching of the claims. There are improvements and modifications. Those skilled in the art will readily understand that all such improvements and modifications are included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Hydroponics plate 1A Plate 1B Gas transfer discharge pipe 3 Plant holding hole 5 Gas transfer path 7 Inlet 9 Outlet 11 Release hole 21 Pipe connector 23 First end 25 Second end 27 Gas guiding path 29 Side wall top 31 Inclined part 100 Hydroponic cultivation apparatus 101 Hydroponic cultivation area 103 Hydroponic cultivation tank 105 Roller conveyor 107 Beam 111 Plant 113 Nutrient solution 115 Gas supply source 117 Lid 119 Planting side 121 Harvest side 201 First One hydroponics plate 201B Gas transfer discharge pipe 207 Inlet 301 Second hydroponics plate 301B Gas transfer discharge pipe 307 Inlet 309 Outlet 401B First gas transfer discharge pipe 405 Gas transfer path 407 Inlet 409 Inlet 411 Discharge hole 421 Pipe connector 423 First end 425 Second end 427 Gas guiding path 501B For second gas Inlet / outlet pipe 505 Inlet 509 Inlet 511 Outlet 511 Release hole 601B Third gas transfer / discharge pipe 611 Release hole 701B Fourth gas transfer / discharge pipe 711 Release hole 801 For hydroponics having other shapes Plate 801A Plate-shaped body 801B Gas transfer / discharge pipe 803 Plant holding hole 805 Gas transfer path 807 Inlet 809 Inlet 811 Release hole 813 Connection convex portion 815 Connection concave portion 901 First plate 913 Connection convex portion 1001 Second plate 1015 Connection recess Y Slide direction

Claims (6)

A plate-like body having a holding hole for plants;
An inlet provided at one end, a spout provided at the other end, and a gas transfer discharge pipe having a discharge hole provided in the side wall;
Comprising
The gas transfer / discharge pipe is disposed on the upper surface of the plate-like body, and the gas injected from the injection port can be discharged from the discharge hole;
A plate for hydroponics. The gas discharge hole is directed substantially upward;
The plate for hydroponic cultivation according to claim 1. An inlet provided at one end of the gas transfer pipe and a spout provided at the other end are configured to be connectable,
The plate for hydroponics according to claim 1 or 2. A plurality of the plates for hydroponics according to claim 1 or 2 are provided in parallel,
The transfer and discharge pipe for gas of the adjacent hydroponics plate is connected with a hollow pipe connector while communicating inside,
Connecting structure for hydroponics plates characterized by The outer diameter of the pipe connector has an inclined portion that decreases in the length direction of the pipe connector from the substantially intermediate portion toward one end and the other end;
The connection structure of the plate for hydroponics of Claim 4 characterized by these. A plurality of the plates for hydroponics according to claim 3 are provided in parallel,
Being connected while communicating one gas transfer discharge pipe of the adjacent hydroponics plate to the inside of the other gas transfer pipe,
Connecting structure for hydroponics plates characterized by