JP3188170U - Plant cultivation tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant cultivation tank which is easy to construct, can easily assemble tanks having different sizes according to a cultivation scale, and has excellent durability. SOLUTION: A rectangular bottom plate 2A, a corner wall 2B erected on two opposite end edge sides of the bottom plate, and an end wall erected on one side edge of the bottom plate adjacent to these corner walls. Two end units 2 having a joint 2D formed on the other end edge of the bottom plate, and a joint piece to be adhered to the lower surface side of the joint and the side surface side of the joint of the adjacent end units. 4. The two end units are butted against each other with the joints facing each other, and the joints of the units adjacent to each other are adhered to and adhered to the lower surface side of the joint and the side surface side of the joint. It is characterized in that it is integrated by one piece and a drainage port is formed in a part of one end unit. [Selection diagram] Fig. 2

Description

  The present invention relates to a cultivation tank provided for plant cultivation in a plant factory or the like.

Conventionally, equipment for hydroponically cultivating vegetables such as lettuce in a plant factory has been proposed. For example, an LED (Light Emitting Diode) lighting device is installed in a closed space such as a building, and an environment suitable for plant growth is constructed while artificially controlling the cultivation environment such as temperature, humidity, and lighting conditions. Facilities for growing good vegetables are provided.
As an example of this type of plant cultivation system, a lettuce cultivation system including a cultivation tank, a water tank, a fertilizer tank, a CO ₂ tank, a light source, an air conditioner, a fan, a CO ₂ sensor, and various sensors is known (Patent Document 1). reference).

The lettuce cultivation system described in Patent Document 1 connects a water tank and a fertilizer tank via a pump to a cultivation tank that stores water, and circulates the water in the cultivation tank and the water tank, and then the necessary amount of fertilizer from the fertilizer tank. Is supplied to the circulating water, and the nutrients necessary for lettuce grown in the cultivation tank can be supplied. In addition, a dehumidifier connected to the humidity sensor, an air conditioner connected to the temperature sensor, and a CO ₂ tank connected to the CO ₂ sensor are provided in the vicinity of the cultivation tank, and the humidity, temperature, air flow, and CO ₂ concentration are adjusted. It is configured so that lettuce can be cultivated while constructing a desirable environment for cultivating lettuce.

JP 2013-1111073 A

As for the cultivation tank applied to this kind of plant factory, a water tank made of a resin molded body is generally applied, but the production scale, installation environment, etc. of the plant factory differ individually. There are also various sizes, and different cultivation tanks are required depending on the scale of the plant factory.
For this reason, it is necessary to install cultivation tanks of various sizes according to the scale of the plant factory. Therefore, there is a demand for water tanks that can be applied to various sizes, can be easily constructed, and have excellent durability. It was.
Artificial cultivation of plants is not limited to buildings such as factories, but is also done in simple facilities such as greenhouses, and cultivation tanks of various sizes are required depending on the size and cultivation scale of the greenhouse. was there.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a plant cultivation tank that is easy to assemble and that can easily assemble tanks having different sizes according to the cultivation scale, and has excellent durability.

(1) In order to solve the above problems, the present invention provides a rectangular bottom plate, a corner wall erected on the two opposite edge sides of the bottom plate, and one side edge of the bottom plate adjacent to the corner wall. Two end units each having an end wall erected on the other side edge of the bottom plate, a lower surface side of the adjacent joint unit and a side surface of the joint The two end units are abutted against each other with the joints facing each other, and the joints of the units adjacent to each other are connected to the lower surface side of the joints and the joints It is integrated by the joining piece adhered and adhered to the side surface side, and a drain outlet is formed in a part of the one end unit.
(2) In order to solve the above problems, the present invention provides a rectangular bottom plate, a corner wall erected on the two opposite edge sides of the bottom plate, and one side edge of the bottom plate adjacent to the corner wall. Two end units each having an end wall erected on the other end edge of the bottom plate, and one or a plurality of end units connected between the two end units. One or a plurality of connection units each including a bottom plate having a shape, and a connection wall erected on two opposite edge sides of the bottom plate, and having a joint on the other two opposite edge sides of the bottom plate; Between the two end units, each of which is provided with a joining piece to be attached to the joint lower surface side and the joint side surface side of the adjacent units, and the joint portions are opposed to each other. Alternatively, a plurality of connection units may connect the connection wall of each connection unit. It is arranged on the same straight line as the corner wall of the unit, and the joints of the units are arranged to face each other, and the joints of the units adjacent to each other are on the lower surface side of the joint and the side surface of the joint. It is integrated by the said joining piece which was adhere | attached and adhere | attached, The drain outlet was formed in a part of said one end unit.

(3) In the present invention, it is preferable that the unit and the joining piece are made of an opaque resin material.
(4) In this invention, the structure by which the flange part for cultivation container shelf support was formed in the corner wall upper part side of the said edge part unit and the connection wall upper part side of the said connection unit is employable.
(5) In the present invention, the joint piece is bonded to the bottom plate side of the unit, the side wall portion bonded to the outer surface side of the corner wall or the connection wall, and the upper side of the side wall portion. Preferably, the flange portion is formed and bonded to the outer surface side of the flange portion.
(6) In the present invention, the end unit, the connection unit, and the joining piece are formed by vacuum molding using a resin as a molding material, and the end unit, the connecting unit, and the surface side of the joining piece are molded. It is preferable that the surface is a smooth surface arranged on the mold surface side, and the end unit, the connection unit, and the back side of the joining piece are matte.

(7) In this invention, the structure by which the clearance gap formed in the butt | matching part of the said end part unit and the said connection unit was obstruct | occluded with the resin waterproof layer is preferable.
(8) In the present invention, a configuration in which a plurality of reinforcing ribs extending in the connecting direction of these units is formed on the bottom plate of the end unit or the bottom plate of the connecting unit is preferable.
(9) In this invention, the structure by which the mark used as the standard of a water level was formed in the height direction intermediate position of the said both end part wall is preferable.
(10) In the present invention, it is preferable that the bottom plate of the end unit or the bottom plate of the connection unit has a convex shape, and the bottom plate is flattened by the water pressure when the cultivation liquid is stored.

According to the present invention, two end units are arranged adjacent to each other, or two end units are provided apart from each other, and one or a plurality of connection units arranged between them are provided. Because it is a plant cultivation tank with the joint between them bonded by a joining piece, depending on whether it is a joint of two end units or a joint that matches the number of connecting units installed, The scale can be adjusted freely. Moreover, the scale as a plant cultivation tank can be freely adjusted by selecting suitably the length and width of an end unit, and the installation number, length, and width of a connection unit.
For this reason, the plant cultivation tank of the arbitrary magnitude | sizes matched with the scale requested | required of installation places, such as a plant factory, can be provided easily. Moreover, since it can assemble as a plant cultivation tank only by adhere | attaching a joining piece between two edge part units or the junction part of a connection unit, it has the characteristics which can be assembled and installed easily.
Since the cultivation liquid accommodated in the tank can be discharged using the drain outlet provided in one end unit, it can respond to the structure which can circulate utilization of cultivation liquid, such as collect | recovering and reusing cultivation liquid.

According to the present invention, since the end unit, the connection unit, and the joining piece are all formed of a molded body of an opaque resin material, the light for growing plants can be blocked so as not to be introduced inside the tank. It has the feature that the generation of unnecessary plants such as algae can be suppressed on the inside, and cleaning of the tank can be easily performed.
Since the flange part is provided on the corner wall upper part of the end unit and the connection wall upper part of the connection unit, these flange parts are connected in a state assembled as a plant cultivation tank, and the plant cultivation container shelf is stably supported on the flange part. it can.

The end unit and the connection unit are formed by resin vacuum molding, and the surface side of these units is made a smooth surface, so that the bottom plate of the end unit, the bottom plate of the connection unit, and the inner surface side of the side wall are made smooth. Thus, a plant cultivation tank that is easy to clean and easy to handle can be provided with the side that accommodates the cultivation liquid as a smooth surface.
Since the gap between the connecting part of the end unit and the connecting unit is closed with a waterproofing layer made of resin, the connecting part between the end unit and the connecting unit is highly waterproof, and the stored cultivation liquid may leak from the joint part. Absent.

Since a plurality of reinforcing ribs are provided on the bottom plate of the end unit and the bottom plate of the connection unit, the bottom plate is hardly deformed even when the cultivation liquid is accommodated and water pressure acts, and a high strength plant cultivation tank can be provided.
By providing a mark that serves as a guideline for the water level at the end wall height direction middle part of the end unit, it becomes a guideline for the amount of water when storing the cultivation liquid in the plant cultivation tank, and the position of the mark and the water level position can be easily It can be confirmed and the amount of water in the stored cultivation liquid can be easily managed.
Further, the cultivation tank of the present invention has a convex shape in the bottom plate of the cultivation tank in a state where the cultivation liquid is not accommodated in the cultivation tank, and the cultivation tank is accommodated in the state where the cultivation liquid is accommodated and water pressure is applied to the bottom plate. By flattening the bottom plate, it is possible to prevent the bottom plate of the cultivation tank from being deformed downward by water pressure and to provide a more stable plant cultivation environment.

The cultivation tank of 1st Embodiment which concerns on this invention is shown, FIG. 1 (A) is a top view, FIG.1 (B) is a side view, FIG.1 (C) is a front view. The elements on larger scale of the cultivation tank. The end unit which comprises a part of the cultivation tank is shown, FIG. 3 (A) is a top view, FIG. 3 (B) is a left side view, FIG. 3 (C) is a right side view. The partial cross section of the edge part unit which comprises a part of the cultivation tank is shown, FIG. 4 (A) is a fragmentary sectional view of an edge part wall, FIG.4 (B) is the fragmentary sectional view of a baseplate. The top view which shows the connection unit which comprises a part of the cultivation tank. The perspective view which shows the joining piece which comprises a part of the cultivation tank. The figure which expands and shows a part of the cultivation tank. The perspective view which shows an example of the plant growing apparatus provided with the cultivation tank.

Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.
FIGS. 1-5 shows the plant cultivation tank for plant cultivation based on 1st Embodiment of this invention, and the cultivation tank 1 of this embodiment was arrange | positioned at both sides, as shown to FIG. 1 (A). It is composed of a shallow-type end unit 2 and three shallow-type connection units 3 arranged between the end units 2 and 2.
These units 2 and 3 are all formed in a tray mold integrally formed of an opaque resin material such as ABS resin, and the adjacent end unit 2 and connecting unit 3 are joined to each other as shown in FIG. The connecting pieces 4 are bonded to the side, and the adjacent connecting units 3 are similarly connected to each other by the other connecting pieces 4. These joining pieces 4 are also integrally formed of an opaque resin material such as ABS resin. For example, the end unit 2, the connection unit 3, and the joining piece 4 can be formed by vacuum molding using ABS resin. In this case, the upper surface side can be a glossy smooth surface, and these back surfaces can be formed. The side can be matte pear ground.

  As shown in FIG. 3A, the end unit 2 includes a horizontally long rectangular bottom plate 2A, and a short corner wall 2B that is integrally provided on the two long side edges of the bottom plate 2A. A short end wall 2C that is integrally provided on one short side edge of the bottom plate 2A, and a joint formed so as to extend the bottom plate 2A to the other short side of the bottom plate 2A It consists of 2D.

  Both the corner wall 2B and the end wall 2C are inclined with respect to the bottom plate 2A so as to spread outward from the bottom plate 2A at an angle slightly larger than 90 °, and the corner wall 2B is provided with a step portion 2e on the upper side. The flange portion 2f is formed. Since the corner walls 2B are formed on the opposite long sides of the bottom plate 2A, the plant walls are grown on the corner walls 2B and 2B so as to hang over the stepped portions 2e. A cultivation container shelf can be installed.

In the end wall 2C, horizontally long convex portions 2g serving as a guide for the water level are formed so as to be positioned at the center portion in the height direction (intermediate portion) of the end wall 2C at the width direction center portion and both end portions, respectively. Yes. In the present embodiment, these convex portions 2g are formed to protrude in a horizontally long protrusion shape inside the end wall 2C, as shown in FIG. 4A, and the convex portion 2g is formed on the end wall 2C. As a result, a slit-like recess 2d is formed outside the end wall 2C.
As shown in FIG. 3A, nine reinforcing ribs 2h are formed at equal intervals inside the bottom plate 2A in parallel with the long side of the bottom plate 2A. These reinforcing ribs 2h are formed so as to protrude with a predetermined width on the upper surface side of the bottom plate 2A as shown in a sectional structure in FIG. 4B, and are formed slightly shorter than the long side of the bottom plate 2A. In addition, since the reinforcement rib of this invention makes it easy to clean a plant cultivation tank, it is preferable to make it a gentle cross-sectional shape.

The joining portion 2D includes a strip-like joining plate 2j formed so as to be positioned one step higher than the bottom plate 2A by a thickness corresponding to the thickness of the bottom plate 2A via the step portion 2i on the other short side of the bottom plate 2A. Have. In addition, a joining wall 2k is formed integrally with the joining plate 2j so as to extend while maintaining the shape of the corner wall 2B and the flange portion 2f at the intersection of the joining plate 2j and the corner wall 2B.
The end unit 2 of the present embodiment shown in FIG. 3A is assumed to be used in a general plant factory, and as an example of the size, the horizontal length (long side length) 1 ~ 3m, width (length, length on the short side) 0.50 ~ 1m, end wall 2C height 5 ~ 10cm, plate thickness 3 ~ 6mm, but length and width The height and plate thickness are not limited to these ranges, and can be changed as needed.
In addition, a drain port 5 is formed at a center portion in the width direction (short side direction in FIG. 3A) on the end wall 2C side of the bottom plate 2A and at a position where it does not interfere with the reinforcing rib 2h. The position where the drain port 5 is formed is not limited to the central portion in the width direction of the bottom plate 2A, but may be on the end portion side in the width direction of the bottom plate 2A.

As shown in FIG. 5, the connection unit 3 includes a horizontally long rectangular bottom plate 3A, short connection walls 3B and 3B integrally provided on the long side edge of the bottom plate 3A, and a bottom plate 3A. It consists of the junction part 3D formed so that the baseplate 3A and the connection wall 3B may be extended to both short side.
With respect to the bottom plate 3A, the connection wall 3B is inclined so as to spread outside the bottom plate 3A at an angle slightly larger than 90 °, and an outward flange portion 3f having a step portion 3e is formed on the upper side of the connection wall 3B. ing.
Since the connecting walls 3B are formed on the opposite long sides of the bottom plate 3A, a cultivation container shelf for plant growth can be installed so as to span the step portions 3e of the connecting walls 3B and 3B. The height of the connecting wall 3B, the inclination angle, the plate thickness, the shape of the step portion 3e, and the shape of the flange portion 3f are the height, the inclination angle, the plate thickness, the shape of the step portion 2e, the flange of the corner wall 2B described above. It is formed equivalent to the shape of the portion 2f.

As shown in FIG. 5, nine reinforcing ribs 3h are formed at equal intervals on the inner side of the bottom plate 3A in parallel with the long side of the bottom plate 3A. These reinforcing ribs 3h have the same shape as the previous reinforcing rib 2h, are formed so as to protrude with a predetermined width on the upper surface side of the bottom plate 3A, and are formed slightly shorter than the long sides of the bottom plate 3A.
The joining portion 3D of the connecting unit 3 is formed on both short sides of the bottom plate 3A through a step portion 3i so as to extend one step higher than the bottom plate 3A by an amount corresponding to the thickness of the bottom plate 3A. A plate-like joining plate 3j is provided. Further, a joining wall 3k is formed integrally with the joining plate 3j so as to extend while maintaining the shape of the connecting wall 3B and the flange portion 3f at the intersection of the joining plate 3j and the connecting wall 3B.

The joining piece 4 includes a strip-like joint plate portion 4A shown in FIG. 6 and a joint plate piece 4C composed of side wall portions 4B and flange portions 4f formed on both end portions in the longitudinal direction of the joint plate portion 4A. Become. A step portion 4e is formed on the upper surface side of the flange portion 4f.
The shape of the side wall part 4B and the flange part 4f of the joining piece 4 is made into the same shape as the side wall part 3B and the flange part 3f of the connection unit 3 demonstrated previously. For this reason, as shown in FIG. 7, the joint piece 4 is placed along the lower surface side of the joint portion 3D of the connection unit 3, so that the joint plate portion 4A of the joint piece 4 is attached to the lower surface side of the joint plate 3j of the connection unit 3. Further, the side wall portion 4B and the flange portion 4f can be brought into close contact with each other along the outer surface side of the joining wall 3k.

  Moreover, the shape of the side wall part 4B and the flange part 4f of the joining piece 4 is made into the same shape as the side wall part 2B and the flange part 2f of the edge part unit 2 demonstrated previously. For this reason, by connecting the joining piece along the lower surface side of the joining portion 2D of the end unit 2, the joint plate portion 4A of the joining piece 4 is placed along the lower surface side of the joining plate 2j of the end unit 2, and the side wall portion 4B. And the flange portion 4f can be brought into close contact with each other along the outer surface side of the joining wall 2k. The width of the joining piece 4 is preferably within a range of 10 to 30 cm in consideration of workability during construction and strength of the joining portion.

As shown in FIG. 1A, the two end units 2 having the above-described configuration are arranged on both sides, and the three connection units 3 are arranged between the two end units 2 so as to be adjacent to the left and right. 2 joining part 2D and joining part 3D of connecting unit 3 with joining piece 4 which adhered to those back sides, and joining piece which joined joining parts 3D of connecting unit 3 which adjoins right and left to those back sides The cultivation tank 1 is configured by joining at 4.
As shown in FIG. 2, in the adjacent end unit 2 and connecting unit 3, the butted portion of the bottom plate 2A and the bottom plate 3A, the butted portion of the corner wall 2B and the connecting wall 3B, and the butted portion of the flange portion 2f and the flange portion 3f are as shown in FIG. A slight gap d is formed, but the gap d is watertightly closed by a waterproof layer 6 made of a gap filling member such as a silicone waterproofing agent. Further, in the connection units 3 and 3 adjacent to the left and right, gap portions d are similarly formed in the butted portions of the bottom plates 3A, the butted portions of the connecting walls 3B, and the butted portions of the flange portions 3f. The part d is also watertightly closed by the waterproof layer 6 as in the configuration of FIG.

As shown in FIG. 1, the cultivation tank 1 in which two end units 2 and three connection units 3 are assembled and integrated is horizontally installed on a multistage shelf installed indoors such as a plant factory. To do.
FIG. 8 shows an example of a multistage shelf 10, in which a plurality of cultivation tanks 1 are installed on the shelf, and an LED lighting device 11 is installed above each cultivation tank 1.
The shelf 10 shown in FIG. 8 is made into 4 steps | paragraphs, and the cultivation tank 1 is installed horizontally by the shelf board part 10A which comprises each step | level. The shelf board portion 10A is configured by assembling a frame member made of a metal frame, and horizontally supports the cultivation tank 1.

A cultivation liquid is poured into the right end of the cultivation tank 1 shown in FIG. 8 through a water supply pipe, a certain amount of the cultivation liquid is stored inside the cultivation tank 1, and a part of the cultivation liquid is drained from the drain port 5. It is preferable that drainage of the cultivation liquid from 5 is connected to a water supply tank or a fertilizer tank by a circulation pump or the like so that the cultivation liquid can be circulated.
Since the step portions 2e and 3e are continuously formed on both sides of the cultivation tank 1 by the flange portions 2f and 3f of the plurality of units 2 and 3 constituting the cultivation tank 1, a plant is formed so as to pass over these step portions. Set up cultivation container shelves for installation. Plants can be cultivated by installing plants such as lettuce on the cultivation container shelf and soaking the root portion in the cultivation liquid of the cultivation tank 1.
The LED lighting device 11 provided in the upper part of the cultivation tank 1 is operated to irradiate a necessary amount of plant breeding light, and the plant can be grown on the cultivation container shelf while controlling the cultivation light.

As an example, the LED lighting device 11 may use a light source including a light emitting diode (red) having a wavelength of 660 nm as a central wavelength and a light source including a light emitting diode (blue) having a wavelength of 450 nm as a central wavelength. it can.
In addition to these light sources, the LED lighting device 11 can also be configured by using a light emitting diode (green) having a wavelength of 525 nm as a central wavelength.
When irradiating cultivation light from the LED lighting device 11, the cultivation container shelf of the plant is opaque, so that the cultivation light is blocked, but the corner wall 2B, the end wall 2C, and the flange portion 2f of the cultivation tank 1 existing around it. If the connection wall 3B, the flange portion 3f, etc. are made of transparent resin, the cultivation light reaches the inside of the cultivation liquid stored in the cultivation tank 1, and algae is generated on the bottom side of the cultivation tank 1. There is a fear. For this reason, it is preferable that the entire cultivation tank 1 including the corner wall 2B, the end wall 2C, the flange portion 2f, the connection wall 3B, the flange portion 3f, and the joining piece 4 is made of an opaque resin. By comprising the cultivation tank 1 from an opaque material, generation | occurrence | production of the algae in a tank can be suppressed and cleaning of the cultivation tank 1 can be made easy.

  In the cultivation tank 1 of the present embodiment, the number of connection units 3 arranged between the end units 2 and 2 may be arbitrarily set. For this reason, compared with embodiment shown to FIG. 1 (A), if the number of connection units 3 shall be two or one, it can be set as a cultivation tank of a smaller scale. Moreover, if many connection units 3 are installed as compared with the embodiment shown in FIG. Further, the lengths of the end unit 2 and the connection unit 3 may be arbitrarily set. The end unit 2 and the connection unit 3 may be formed in the same length, or one of the end unit 2 and the connection unit 3 may be formed longer than the other.

The cultivation tank 1 of this embodiment can be easily assembled by installing the required number of connection units 3 between the end units 2 and 2 and bonding the joining pieces 4 to them.
In the joining portions 2D and 3D of the end unit 2 and the connection unit 3, the joining pieces 4 are brought into close contact with each other from the back side thereof, and thus have a strong joining portion in combination with the provision of the waterproof layer 6 described above. The cultivation tank 1 can be provided.

The cultivation tank 1 of the present embodiment is provided with joint plates 2j and 3j that are higher than the bottom plates 2A and 3A by the thickness of the bottom plates 2A and 3A through the step portions 2i and 3i in the joint portions 2D and 3D. . Therefore, as shown in FIG. 2, when the joint plate portion 4A of the joining piece 4 is bonded to the lower surface side of the joining plates 2j and 3j, the lower surface of the joint plate portion 4A is the bottom surface of the bottom plate 2A of the end unit 2 and the connection unit 3. It becomes flush with the bottom surface of the bottom plate 3A. For this reason, since the bottom face of the cultivation tank 1 can be flat, when installing the cultivation tank 1 on the shelf board part 10A of the shelf 10, as shown in FIG. The tank 1 can be stably supported.
Further, as shown in FIG. 2, the top surface height of the reinforcing ribs 2 h and 3 h and the top surface height of the joining plates 2 j and 3 j are aligned inside the cultivation tank 1, and the bottom surface side height of the cultivation tank 1 is as uniform as possible. If so, there are few steps and irregularities on the bottom side in the tank, and it is easy to clean.

  The structure of the first embodiment described above is a structure in which three connection units 3 are joined in addition to the end units 2 and 2. However, the connection unit 3 is omitted and the end units 2 and 2 are joined. It is good also as a structure which bonded | joined the joining piece 4 so that it might butt through the part 2D and it might cover the joined part 2D and 2D which faced | matched. In the case of this configuration, a plant cultivation tank is constituted by the end units 2, 2 and the joining piece 4.

In the configuration of the cultivation tank 1, the bottom plate 2 </ b> A of the end unit 2 or the bottom plate 3 </ b> A of the connection unit 3 can be convex upward.
If the bottom plate 2A or the bottom plate 3A has an upwardly convex shape, even if the bottom plate 2A or the bottom plate 3A is deformed downward by the water pressure when the cultivation liquid is stored in the cultivation tank 1, the bottom plate 2A or the bottom plate 3A can be flat.

  The plant cultivation tank which concerns on this invention is widely used in the field | area which is installed in a plant factory etc. and performs hydroponic cultivation, such as lettuce.

  DESCRIPTION OF SYMBOLS 1 ... Cultivation tank, 2 ... End part unit, 2A ... Bottom plate, 2B ... Corner wall, 2C ... End part wall, 2D ... Joint part, 2f ... Flange part, 2e ... Step part, 2h ... Reinforcement rib, 2i ... Step part 2j ... joint plate, 2k ... joint wall, 3 ... connection unit, 3A ... bottom plate, 3B ... connection wall, 3D ... joint part, 3f ... flange part, 3e ... step part, 3h ... reinforcing rib, 3i ... step part, 3j ... Joining plate, 3k ... Joining wall, 4 ... Connection piece, 4A ... Joint plate part, 4B ... Side wall part, 4e ... Step part, 4f ... Flange part, 5 ... Drain port, 6 ... Waterproof layer, 10 ... Shelf, 10A ... shelf board part, 11 ... LED lighting apparatus.

Claims (10)

A rectangular bottom plate, a corner wall erected on the two opposite edge sides of the bottom plate, and an end wall erected on one side edge of the bottom plate adjacent to the corner wall, Two end units in which a joint is formed on the other side edge;
It is provided with a joining piece to be attached to the joint lower surface side and the joint side surface side of the adjacent end unit,
The joint piece in which the two end units are abutted with the joints facing each other, and the joint parts of the units adjacent to each other are adhered and adhered to the lower surface side and the side surface side of the joint parts. Integrated by
A plant cultivation tank in which a drain outlet is formed in a part of the one end unit. A rectangular bottom plate, a corner wall erected on the two opposite edge sides of the bottom plate, and an end wall erected on one side edge of the bottom plate adjacent to the corner wall, Two end units in which a joint is formed on the other side edge;
One or a plurality of these two end units are joined to each other, and include a rectangular bottom plate and connection walls erected on the two opposite edge sides of the bottom plate, and two other opposing two of the bottom plates One or more connection units provided with a joint on the edge side;
It comprises a joining piece to be attached to the joint lower surface side and the joint side surface side of the adjacent units,
Between the two end units that are spaced apart with the joints facing each other, the one or more connection units arrange the connection walls of the connection units on the same straight line as the corner walls of the end units. And the joints of the units are arranged to face each other,
The joint portions of the units adjacent to each other are integrated by the joint pieces adhered and adhered to the lower surface side of the joint portion and the side surface side of the joint portion,
A plant cultivation tank in which a drain outlet is formed in a part of the one end unit.   The plant cultivation tank according to claim 1 or 2, wherein the unit and the joining piece are made of an opaque resin material.   The plant cultivation tank as described in any one of Claims 1-3 in which the flange part for cultivation container shelf support was formed in the corner wall upper part side of the said edge part unit, and the connection wall upper part side of the said connection unit.   The joint piece is bonded to the bottom plate side of the unit, the side wall portion is bonded to the corner wall or the outer surface side of the connection wall, and the flange portion outer surface is formed on the upper side of the side wall portion. The plant cultivation tank as described in any one of Claims 1-4 which consists of a flange part adhere | attached on the side.   The end unit, the connection unit, and the joining piece are created by vacuum molding using resin as a molding material, and the end unit, the connecting unit, and the surface side of the joining piece are arranged on the mold surface side during molding. The plant cultivation tank according to any one of claims 1 to 5, wherein the rear surface side of the end unit, the connection unit, and the joining piece is a satin surface.   The plant cultivation tank as described in any one of Claims 1-6 by which the clearance gap formed in the butt | matching part of the said edge part unit and the said connection unit was obstruct | occluded with the waterproofing layer made from resin.   The plant cultivation tank according to any one of claims 1 to 7, wherein a plurality of reinforcing ribs extending in a connecting direction of the units are formed on the bottom plate of the end unit or the bottom plate of the connection unit.   The plant cultivation tank as described in any one of Claims 1-8 in which the mark used as the standard of a water level was formed in the height direction intermediate position of the said both end part wall.   The bottom plate of the end unit or the bottom plate of the connection unit is formed in a convex shape, and the bottom plate is flattened by the water pressure when the cultivation liquid is accommodated. The plant cultivation tank as described in.

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