JP2018110547A - Growth-supporting apparatus and plant-growing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a growth-supporting apparatus for supporting the growth of plants by efficiently cooling or warming the plants.SOLUTION: A growth-supporting apparatus 100 for locally cooling or warming plants P put on a medium, has a plurality of water pipes 101 inside which flows liquid at lower temperature or higher temperature than the ambient temperature, and a long duct 105 into which air is blown with a blowing device. The duct 105 is disposed on a medium 12 so that its bottom comes into contact with the medium 12, and the plurality of water pipes 101 are disposed at intervals in the duct 105.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a growth assisting device and a plant growing device for assisting plant growth by locally cooling or warming a plant planted in a medium.

  When plants such as vegetables and fruits are cultivated in an indoor cultivation space such as a greenhouse or a factory, the temperature of the cultivation space is generally adjusted in order to effectively grow or harvest the plants. Conventionally, in summer and winter, air-conditioning equipment has been used to cool or heat the cultivation space to maintain the temperature in the cultivation space at a temperature suitable for plant growth. However, such an air conditioning system is considered to be very inefficient because it cools or heats not only plants but also the entire cultivation space. Therefore, various attempts have been made to assist plant growth by locally cooling or heating the plant in order to efficiently control the temperature of the plant.

  For example, Patent Document 1 discloses a culture temperature adjustment system that increases the yield by adjusting the culture temperature. The soil temperature adjustment system (5) adjusts the temperature of the soil in which a plurality of strawberries (4) are planted side by side. The culture temperature control system (5) includes a first and second pipes (6, 7) having a circular cross section and water flowing therein, and ends of the first and second pipes (6, 7). And a connecting portion (8) for connecting each other. The first pipe (6) is arranged along the arrangement direction of the plurality of strawberries (4) on the cultivation soil, and the second pipe (7) is arranged in the cultivation medium below the first pipe (6). It is arranged along. Then, the soil temperature is adjusted by adjusting the temperature of the water flowing through the first pipe (6) and the second pipe (7). In addition, the code | symbol of patent document 1 was shown in ().

JP 2014-176338 A

  However, in the conventional system (apparatus), since the cross-sectional shape of the pipe (water pipe) is circular, the water pipe (first pipe) arranged on the soil is used as the soil surface or plant (for example, a strawberry crown). Part) can be contacted or approached only at one point in the circumferential direction. By using a water pipe having a circular cross section in this way, the contact area or the proximity area to the plant becomes extremely small, so that only the water pipe arranged on the culture medium can efficiently heat the culture soil or the plant. It cannot be cooled. Therefore, the conventional system prepares at least two water pipes, places one water pipe (first pipe) on the culture medium, and places the other water pipe (second pipe) in the ground. He needed to be buried. That is, in the prior art, it was necessary to arrange a water pipe having two roles. Therefore, the problem of the conventional system is that the system becomes complicated and the burden of running cost and the like becomes relatively large.

  The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a growth assistance device that assists plant growth by cooling or heating a plant more efficiently, and the growth assistance device. The object is to provide a plant growing apparatus.

The growth assistance device according to claim 1 is a growth assistance device for assisting the growth of a plant planted in a culture medium,
A plurality of water pipes in which a liquid having a temperature lower or higher than the ambient temperature flows;
A long duct in which gas is blown inside by a blower,
The duct is disposed on the medium such that the bottom surface is in contact with the medium.
The plurality of water pipes are arranged in the duct with a space therebetween.

  The growth assisting device according to claim 2 is the growth assisting device according to claim 1, wherein the water pipe is arranged close to the plant or in contact with the plant via the duct. It is characterized by that.

  The growth assisting device according to claim 3 is the growth assisting device according to claim 1 or 2, wherein the duct is formed with one or a plurality of outlets so as to blow the gas toward the local part of the plant. It is characterized by being made.

  The growth assisting device according to claim 4 is the growth assisting device according to any one of claims 1 to 3, wherein the water pipe is formed of an elongated body having a quadrangular cross section. And

  The growth assisting device according to claim 5 is the growth assisting device according to any one of claims 1 to 4, wherein the water pipe is a corrugated flexible tube.

  The growth assisting device according to claim 6 is the growth assisting device according to any one of claims 1 to 5, wherein the duct is formed of a soft film.

  The growth assisting device according to claim 7 is the growth assisting device according to any one of claims 1 to 6, further comprising a holder for holding the plurality of ducts at a predetermined interval. It is characterized by that.

The plant growing device according to claim 8 is a plant growing device for growing a plant,
A medium in which a plant is planted or a plant is planted;
A growth assisting device according to any one of claims 1 to 7, which is installed so as to cool or warm the culture medium.

  The plant growing apparatus according to claim 9 is the plant growing apparatus according to claim 8, wherein the plant is a strawberry, and a crown portion of the strawberry is heated or cooled by the duct.

  According to the growth assisting apparatus of the first aspect of the present invention, gas is blown into a long duct that interpolates a plurality of water pipes through which a low-temperature or high-temperature liquid flows, and the bottom surface of the duct comes into contact with the culture medium. To cool or warm the medium. That is, when a low-temperature or high-temperature liquid flows through the water pipe arranged in the duct, the temperature of the air blown over substantially the entire length of the duct is appropriately controlled, and the duct itself is cooled or heated. At this time, since a plurality of water pipes are separated from each other, a relatively large contact area between the water pipe and the air in the duct can be secured, so that the gas inside the duct can be effectively cooled or heated. . And the duct which contact | abuts on a culture medium in a surface takes heat from a culture medium, or adjusts and manages the temperature of the culture medium surface by giving heat to a culture medium, and can support the growth of a plant effectively.

  According to the growth assisting device according to claim 2 of the present invention, in addition to the effect of the invention according to claim 1, the water pipe is arranged so as to be close to the plant or to be in contact with the plant through the duct. Therefore, the plant itself can be cooled or heated by the water pipe, and the plant growth can be assisted more effectively.

  According to the growth assisting device according to claim 3 of the present invention, in addition to the effect of the invention according to claim 1 or 2, the gas in the cooled or heated duct is directed to the local area of the plant through the outlet. The plant can be directly cooled or heated by being sprayed. Furthermore, the temperature of the gas blown out from the outlet can be adjusted by cooling or heating the gas inside the duct body in the longitudinal direction by the water pipe through which the cooling liquid or the heating liquid passes.

  According to the growth assisting device according to claim 4 of the present invention, in addition to the effect of the invention according to any one of claims 1 to 3, the water pipe is formed of a long body having a quadrangular cross section. As a result, one side of the quadrangular cross section can be brought close to the culture medium. And the area which can approach the culture medium of a water pipe can be enlarged comparatively, and cooling or heating of a culture medium can be accelerated | stimulated.

  According to the growth assisting device according to claim 5 of the present invention, in addition to the effect of the invention according to any one of claims 1 to 4, the duct body is formed by making the water flow pipe a corrugated flexible pipe. The surface area of the water pipe that contacts the gas inside was increased. Thereby, gas can be cooled or heated more effectively with a water pipe. Further, because of the flexibility of the water pipe, for example, the corrugated pipe can be appropriately arranged along the arrangement of plants planted so as to be bent or refracted.

  According to the growth assisting device according to claim 6 of the present invention, in addition to the effects of the invention according to any one of claims 1 to 5, the duct is formed of a soft film, thereby handling and processing. Is easy. For example, it is possible to easily add an outlet according to the position of the plant whose temperature is to be controlled.

  According to the growth assisting device according to claim 7 of the present invention, in addition to the effect of the invention according to any one of claims 1 to 6, the plurality of ducts are held by the holding tool, so that a predetermined interval is obtained. A plurality of water pipes can be arranged apart from each other. By using the holder, it is possible to prevent the water pipes from moving at the position where the holder is mounted and crossing or tangling each other.

  According to the plant growing device according to claim 8 of the present invention, the effect of the invention according to any one of claims 1 to 7 can be exhibited as a plant growing device. That is, the plant growing device of the present invention can grow plants effectively by adjusting the temperature of the medium surface.

  According to the plant growing apparatus of the ninth aspect of the present invention, in addition to the invention of the eighth aspect, it is possible to more efficiently perform temperature management in strawberry growing.

1 is a schematic perspective view of a plant growing device according to an embodiment of the present invention. The top view of the plant growing apparatus of FIG. FIG. 3 is a cross-sectional view of the plant growing device of FIG. 2 taken along the line AA. The elements on larger scale of the plant growing apparatus of FIG. The plane schematic which shows the water flow pipe of the plant growing apparatus of FIG. The disassembled perspective view of the joint structure of the water flow pipe which comprises the plant growing apparatus of FIG. The (a) perspective view and (b) front view of the holder of the plant growing apparatus of FIG. The schematic diagram which shows the water supply system of the plant growing apparatus of one Embodiment of this invention. The schematic sectional drawing of the plant growing apparatus of another Example of this invention. The schematic perspective view of the plant growing apparatus of another Example of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the shape of each figure referred in the following description is a conceptual diagram or a schematic diagram for explaining a suitable shape dimension, and a dimension ratio etc. do not necessarily correspond with an actual dimension ratio. That is, the present invention is not limited to the dimensional ratio in the drawings.

  The plant growing apparatus 10 of one embodiment of the present invention grows a plant planted in a culture medium by locally cooling or heating. And the growth assistance apparatus 100 with which this plant cultivation apparatus 10 was equipped is comprised so that the cultivation may be assisted and promoted by performing temperature control of a plant efficiently. In the present embodiment, the plant is a strawberry seedling P that is cultivated at a high place on a mount in a house environment. Generally, in house cultivation of strawberry seedlings P, it is important to cool the strawberry seedlings P in the summer when the temperature is high and warm the strawberry seedlings P in the winter when the temperature is low. And, in order to locally control the temperature of the strawberry seedling P, it is efficient to intensively cool or warm the surface of the medium and the crown part (growth point) P1 (see FIG. 4) in the vicinity of the stock. It has been known. However, the technical idea of the present invention can also be applied to temperature management for other plants such as fruits, vegetables, and flowers and different planting environments, and the present invention is not limited to the embodiments described below. Not too long.

  With reference to FIG. 1 thru | or FIG. 8, the structure of the plant growing apparatus 10 and the growth assistance apparatus 10 of one Embodiment of this invention of this invention is demonstrated. FIG. 1 is a schematic perspective view of a plant growing apparatus 10 according to an embodiment of the present invention. FIG. 2 is a schematic plan view of the plant growing apparatus 10. 3 and 4 are a lateral (AA) sectional view of the plant growing device 10 and a partially enlarged view thereof. FIG. 5 is a schematic plan view showing the water conduit 101 of the plant growing device 10. FIG. 6 is an exploded perspective view of the joint structure of the water flow pipe 101. FIGS. 7A and 7B are a perspective view and a front view of the holder 104 of the plant growing device 10. FIG. 8 is a schematic diagram showing a water supply system of the plant growing device 10.

  As shown in FIG. 1, a plant growing apparatus 10 includes a container 11 installed at a high place in a greenhouse such as a greenhouse and a medium 12 formed in the container 11 for planting strawberry seedlings P. And a growth assisting device 100 installed on the culture medium 12.

  The container 11 is a rectangular casing that opens upward, and can hold a predetermined amount of soil. Moreover, the container 11 is comprised by the substantially rectangular parallelepiped shape with a long one side, and has the width direction and a longitudinal direction in planar view (refer FIG. 2). Then, the culture medium 12 is defined on the upper surface of the container 11 by filling the container 11 with the soil. In this embodiment, the width | variety of the container 11 is defined by the dimension (for example, about 0.4 m) which can arrange two strawberry seedlings P in the width direction. On the other hand, the total length of the container 11 is determined by a dimension (for example, about 10 m) in which a large number of strawberry seedlings P can be arranged along the longitudinal direction. Further, the container 11 is supported at a high place in a state of floating from the ground by a gantry 13 composed of a plurality of legs (see FIG. 8). Thereby, the grower can work without bending the waist. In addition, although the container 11 of this embodiment consists of foamed resins, such as a polystyrene foam, you may be comprised with arbitrary materials, such as another hard synthetic resin and wood.

  The culture medium 12 is an area extending in the longitudinal direction with a predetermined width. As shown in FIG. 2, a plurality of strawberry seedlings P are continuously planted in the culture medium 12 at predetermined intervals along the longitudinal direction of the container 11. Two strawberry seedlings P are arranged in the vicinity of both ends in the width direction of the culture medium 12. That is, the seedling rows of the two rows of strawberry seedlings P are linearly arranged on the medium 12 of the plant growing device 10. As shown in FIG.3 and FIG.4, each strawberry seedling P is planted shallowly so that the crown part P1 may not be hidden in cultivation soil.

  The growth assistance apparatus 100 is installed on the culture medium 12 so that each strawberry seedling P can be locally cooled or heated. In particular, the growth assisting apparatus 100 is installed to cool or warm the strawberry seedling P indirectly by cooling or warming the crown portion P1 of the strawberry seedling P and cooling or warming the culture medium 12 itself. Has been. Specifically, the growth assisting device 100 includes a plurality (two in this embodiment) of water pipes 101 through which cold water or hot water (liquid having a temperature lower or higher than the environmental temperature) flows, and cold water in each water pipe 101. Alternatively, a water supply device 103 for supplying hot water, a holder 104 that holds the plurality of water pipes 101 at predetermined intervals, and a long duct 105 that is disposed so as to contain the water pipes 101; An air blower (not shown) that blows gas into the duct 105 through the air duct 108a is provided.

  The water conduit 101 is a flexible long body having a square cross section. More specifically, the water flow pipe 101 is composed of a rectangular corrugated flexible pipe in which peaks and valleys are alternately continued in the longitudinal direction. As shown in FIGS. 3 and 4, the water pipe 101 has a substantially square cross section. Further, a concave strip 101a extending over the entire length direction is provided at the approximate center of the upper surface (upper side) and the lower surface (lower side) of the water flow pipe 101.

  The water flow pipe 101 of the present embodiment is formed of a synthetic resin such as polyethylene and vinyl chloride (but not limited to). In the present embodiment, one side of the convex portion is determined to be about 1.35 times as long as one side of the concave portion. Furthermore, in this embodiment, the water flow pipe 101 whose one side of the recess is about 100 mm is employed. However, the dimensions and shape of the water pipe of the present invention can be arbitrarily changed within the technical scope of the present invention, and are appropriately selected according to the type of plant and the area of the culture medium.

  In this embodiment, the two water pipes 101 extend substantially linearly along the seedling row of the strawberry seedlings P, and are placed on the culture medium 12 inside the widthwise direction of each strawberry seedling P. Yes. As shown in FIG. 5, a plurality (two) of water flow pipes 101 are arranged in the duct 105 at intervals. In addition, the plurality of holders 104 hold the water pipes 101 adjacent to each other at a predetermined interval, so that the two water pipes 101 extend so as to be substantially parallel to each other. And each water pipe 101 is arrange | positioned on the culture medium 12 inside the duct 105 linearly along a longitudinal direction so that it may follow each seedling row | line | column of the strawberry seedling P. FIG.

  Each water pipe 101 is connected to a pipe 103 a of the water supply apparatus 103 via a joint portion 102. Then, cold water or hot water is supplied to the water pipe 101 through the pipe 103 a, and the liquid flows through the water pipe 101. Specifically, as shown in FIG. 6, the joint portion 102 in which the square end portion on the water supply side of the water pipe 101 is connected to the end portion of the circular pipe 103 a via the joint portion 102 has a small diameter to a large diameter. And the first and second joints 102a and 102b for converting the circular shape into a square shape. Through the first, second, and third joints 102a, 102b, and 102c, the water flow pipe 101 and the pipe 103a having different diameters and shapes are connected to each other. Thereby, it is possible to supply liquid such as cold water or hot water from the pipe 103 a to the water pipe 101.

  Note that cold water or hot water means a liquid having a low temperature or a high temperature relative to the environmental temperature or the outside air temperature, and does not indicate a liquid having a specific temperature. Moreover, in this embodiment, although water is supplied inside a water flow pipe, it replaces with water and other liquids, such as oil, may be employ | adopted.

  The holder 104 is configured to hold a pair of adjacent water pipes 101 at a predetermined interval. Specifically, as shown in FIG. 7, the holder 104 connects a pair of holding portions 104 a configured to be able to hold the outer surface of the water flow pipe 101 and the pair of holding portions 104 a at a predetermined interval. Connecting portion 104c. The holding portion 104a and the connecting portion 104c of the holder 104 are integrally formed as a bent and wide synthetic resin plate. The pair of holding portions 104a face away from each other. Each holding portion 104a has a U-shaped opening and has a pair of locking claws 104b that protrude inwardly at the tip. The U-shaped opening width of the holding portion 104a corresponds to the distance between the outer surfaces of the water pipe 101 on the mountain side. The pair of locking claws 104b can be displaced in directions away from each other by elastic deformation of the holding portion 104a. And a pair of latching claw 104b is comprised in the state which pinched | interposed the outer surface of the water flow pipe 101 with the holding | maintenance part 104a so that it can latch with respect to the groove 101a of the water flow pipe 101 (refer FIG. 4). As shown in FIG. 5, by arranging a plurality of holders 104 with respect to the water pipe 101, the pair of water pipes 101 can be kept at a constant interval.

  The duct 105 extends substantially linearly along the seedling row of the strawberry seedlings P so as to enclose the two water pipes 101. That is, one duct 105 is placed at the substantially center in the width direction of the culture medium 12 so that the outer surface thereof is close to or in contact with the strawberry seedlings P on both sides. The duct 105 has a long duct body 106 through which gas is blown, and a plurality of outlets 107 formed on both side surfaces of the duct body 106 so as to blow the gas toward the local area of the strawberry seedling P. The duct body 106 is a cylindrical body having a substantially oval cross section that extends from one end to the other end in the longitudinal direction of the container 11. The duct body 106 has an inlet through which gas is sent at one end and is closed at the other end (not shown). A blower duct 108 of the blower is connected to the entrance of the duct body 106. Further, the plurality of outlets 107 can be formed in the duct main body 106 at constant or arbitrary intervals over the entire lengthwise direction. That is, when a temperature-controlled gas (cold air or hot air) is sent into the duct 105 from the air blower through the air duct 108, the gas flows from the upstream to the downstream of the duct 105, and the pressure inside the duct 105 is The duct 105 expands and cool air or warm air is discharged from each outlet 107.

  In this embodiment, the duct 105 is made of a flexible translucent soft resin film, and the material thereof can be selected from polyethylene, polypropylene, polyester, nylon, and the like. Thus, the duct 105 is made of a soft film, so that the air outlet 107 can be easily added at an arbitrary position. Further, since the duct 105 is translucent, the state of the water pipe 101 disposed inside can be visually recognized.

  The blower can blow cold air and / or hot air. For example, the air blower may be a general air conditioner configured by a heat exchanger including a compressor, an expansion valve, a condenser, and an evaporator. Cold air or warm air is discharged from the blower so as to flow from the upstream side to the downstream side of the duct 105 through the air duct 108. In addition, in this embodiment, although the gas sent out from an air blower is air, other arbitrary gas may be employ | adopted.

  Based on the above description of each component, the structure of the plant growing apparatus 10 and the growth assistance apparatus 100 is demonstrated in detail.

  As shown in FIGS. 4 and 5, in the plant growing device 10 of the present embodiment, the duct 105 is disposed on the culture medium 12 so that the bottom surface of the duct 105 contacts the culture medium 12. Since cool air or warm air is sent from the blower to the duct 105 and the gas in the duct 105 is cooled or heated by the water pipe 101, the temperature of the outer surface of the duct 105 is lower or higher than the environmental temperature. Maintained in a state. In particular, since the two water pipes 101 are separated from each other by the holder 104, a relatively large contact area between the water pipe 101 and the gas in the duct 105 is secured, and the gas inside the duct 105 is effectively prevented. Maintained in a cooled or warmed state. As a result, direct heat transfer is performed between the bottom surface of the duct 105 and the surface of the culture medium 12, whereby an appropriate temperature adjustment of the culture medium 12 can be performed. Further, since the outer surface of the duct 105 is placed on the culture medium 12 so as to be close to or in contact with the crown portion P1 of each strawberry seedling P, temperature adjustment to the strawberry seedling P is effectively performed. In addition, the above "close" indicates a state in which the duct and the plant are arranged at a distance that allows transmission of cool air or hot air of the duct.

  As shown in FIG. 5, a plurality of air outlets 107 that discharge gas to the side so as to cool or heat the back of the stems and leaves of the strawberry seedling P mainly from the inside are perforated on both sides of the duct 105. Has been. The air outlets 107 are regularly or arbitrarily formed over the entire longitudinal direction of the duct body 105a at predetermined intervals at the same position in the circumferential direction. That is, in the plant growing device 10, seedling rows made of a plurality of strawberry seedlings P are formed by blowing cold air or warm air from the outlet 107 of the duct 105 to the strawberry seedlings P and the medium 22 over the longitudinal direction of the medium 12. The temperature is controlled at the same time.

  And the water flow pipe 101 (and the liquid in the inside) functions so as to cool or heat the air in the duct 105 so as to suppress the temperature difference generated from the upstream to the downstream inside the duct 105. Specifically, when cooling the strawberry seedling P in a high temperature environment such as summer, cold water is passed through the water pipe 101 inside the duct 105 and air is blown through the water pipe 101 over the longitudinal direction of the duct 105. The air (cold air) blown from the device is cooled or kept cool. That is, the water pipe 101 serves as a cold heat source, and the gas in the duct 105 is prevented from being warmed by the summer air, and the temperature distribution of the gas in the longitudinal direction of the duct 105 is more uniformly maintained. On the other hand, when warming the strawberry seedling P under a low-temperature environment such as winter season, warm water is passed through the water pipe 101 inside the duct 105, and from the blower device through the water pipe 101 over the longitudinal direction of the duct 105. Warm or keep warm the blown air (warm air). That is, the water flow pipe 101 serves as a heat source to suppress the gas in the duct 105 from being cooled by the winter outside air, and the temperature distribution of the gas in the longitudinal direction of the duct 105 is more uniformly maintained. That is, according to the plant growing device 10, the temperature difference between the air blowing from the upstream outlet 107 of the duct 105 and the air blowing from the downstream outlet 107 is suppressed.

  Further, as shown in FIGS. 4 and 5, the water pipe 101 is stable on the bottom wall of the duct 105 so that the lower side (lower surface) of the water pipe 101 is in contact with the surface of the culture medium 12 through the duct 105. It is placed in. Further, the side (side surface) of the water conduit 101 is close to the strawberry seedling P (crown part P1) or in contact with the strawberry seedling P (crown part P1) through the duct 105. That is, in the cross section of the plant growing device 10, one side of the water conduit 101 is close to or in contact with the crown portion P 1 of the strawberry seedling P through one outer wall of the thin duct 105 and the other side of the water conduit 101. Is in contact with the surface of the culture medium 12. Therefore, the water flow pipe 101 itself also functions to cool or warm both the crown part P1 of the strawberry seedling P and the culture medium 12.

  FIG. 8 is a schematic diagram showing the water supply system of the present embodiment. In FIG. 8, the duct and the air blower are omitted for convenience of explanation. As shown in FIG. 8, the water supply apparatus 103 includes a pipe 103a connected to the water pipe 101 through the joint portion 102, and a circulation pump 103b to which the pipe 103a is connected. The circulation pump 103b includes a discharge port and a suction port, and an upstream side and a downstream side pipe 103a are connected to each. The discharge-side pipe 103 a is connected to the upstream end of the water conduit 101, and the suction-side pipe 103 a is connected to the downstream end of the water conduit 101. That is, the liquid sent out from the discharge port of the circulation pump 103b is passed through the pipe 103a on the discharge port side to the water pipe 101. Then, the liquid flowing out from the downstream end of the water pipe 101 flows into the suction port of the circulation pump 103b through the pipe 103a on the suction port side. The liquid that has flowed into the circulation pump 103b is sent out from the discharge port toward the water pipe 101 again. Thus, in the plant growing apparatus 10 of the present embodiment, a liquid (cold water or hot water) circulation system is configured.

  In summer, the plant growing device 10 operates to circulate cold water by the circulation pump 103b. On the other hand, in winter, the plant growing device 10 operates so as to circulate hot water by the circulation pump 103b. In this embodiment, a part (horizontal part) of the water conduit 101 is buried in the ground. In general, the underground temperature is approximately constant at around 15 ° C throughout the year. The underground temperature is lower than the environmental temperature (outside temperature) in summer, and the underground temperature is lower in winter. Higher than that. Therefore, in the pipe 103a buried in the ground, in the summer, the liquid dissipates heat in the ground and becomes colder than the outside air, thereby generating cold water. On the other hand, in winter, hot water is generated by collecting liquid in the ground and becoming hotter than the outside air. That is, the plant growing apparatus 10 of this embodiment adjusts the temperature of the strawberry seedling P by generating cold water or hot water by effectively using underground heat for adjusting the water temperature.

  Hereinafter, the operation and effect of the plant growing device 10 and the growth assisting device 100 according to an embodiment of the present invention will be described.

  According to the plant growing device 10 and the growth assisting device 100 of the present embodiment, gas (gas or environment having a temperature lower than the ambient temperature) is inserted into the long duct 105 that interpolates a plurality of water pipes 101 through which a low-temperature or high-temperature liquid flows. A gas having a temperature higher than the temperature is blown, and the bottom surface of the duct 105 abuts on the culture medium 12 to cool or warm the culture medium 12. That is, when a low-temperature or high-temperature liquid flows through the water flow pipe 101 disposed in the duct 105, the water flow pipe 101 functions as a cooling source or a heat source inside the duct 105, and the duct 105 is substantially entirely in the longitudinal direction. The temperature of the blown air is appropriately controlled, and the entire duct 105 is cooled or heated. At this time, since the plurality of water pipes 101 are separated from each other, a relatively large contact area between the water pipe 101 and the air in the duct 105 can be secured, so that the gas inside the duct 105 can be effectively cooled or added. Can be warm. And the duct 105 which contact | abuts to the culture medium 12 removes heat from the culture medium 12, or heats the culture medium 12, whereby the temperature of the culture medium 12 surface can be adjusted and plant growth can be effectively assisted.

[Modification]
The present invention is not limited to the above embodiment, and various modifications can be made. Hereinafter, modifications of the present invention will be described. In each modification, components having the same last two digits or the last two digits in the components indicated by two digits or three digits have the same or similar characteristics unless otherwise described. Omitted.

(1) In the plant growing device 10 and the growth assisting device 100 according to the above embodiment, the water flow pipe 101 made of a rectangular corrugated flexible tube is employed, but the present invention is not limited to the above embodiment. For example, as shown in FIG. 9, the plant growing device 20 and the growth assisting device 200 employ a water pipe 201 made of a corrugated flexible tube having a circular cross section. Moreover, in the said embodiment, although two water pipes were employ | adopted, three or more water pipes may be used.

(2) In the plant growing device 10 and the growth assisting device 100 of the above embodiment, the culture medium 12 is simultaneously brought into contact with or in contact with the plant (strawberry seedling P) through the duct 105 when the tube wall of the cooled or heated water pipe 101 is passed through the duct 105. However, the present invention is not limited to the above embodiment. For example, the water pipe may be supported in a state where it floats from the culture medium by legs or the like.

(3) In the plant growing device 10 and the growth assisting device 100 of the above embodiment, the water flow pipe 101 made of a rectangular corrugated flexible tube is employed, but the present invention is not limited to the above embodiment. For example, the water pipe may be a straight pipe having no irregularities on the outer surface as long as the cross section is rectangular.

(4) In the plant growing device 10 of the above embodiment, the liquid is circulated by the circulation device and the temperature is adjusted by the underground heat, but the present invention is not limited to the embodiment. That is, the liquid supplied from the pipe may be drained after passing through the water pipe. Alternatively, the cooled or heated liquid may be sent into the water pipe by separately providing a cooler or a heater upstream of the water pipe without using the underground heat.

(5) In the plant growing device 10 of the above embodiment, cold air or hot air is blown from the blower, but the present invention is not limited to the embodiment. That is, in the blower, the temperature of the gas (fan) may be changed by the water pipe without cooling or heating the gas.

(6) In the growth assisting apparatus 100 of the above-described embodiment, the air outlet 107 is provided in the duct 105, but the air outlet may be omitted in the present invention. Even if the outlet is omitted, the temperature of the medium can be adjusted by a cooled or heated duct.

(7) In the plant growing device 10 of the above embodiment, the plurality of strawberry seedlings P are arranged in a straight line, but the plurality of strawberry seedlings P may be randomly arranged so as to be bent or refracted. Even in such a case, the water flow pipe 101 of the growth assisting apparatus 100 according to the present embodiment follows the plurality of strawberry seedlings P by bending or bending the flexible corrugated flexible pipe. It is possible to arrange the water pipe 101.

(8) The growth assisting device of the present invention can be used in combination with other temperature control devices. For example, FIG. 10 shows a plant growing device 50 according to a modification of the present invention. As shown in FIG. 10, the plant growing device 50 is provided with a growth assisting device 500 (similar to the growing assisting device 100), and is provided with gas whose temperature is controlled locally on the strawberry seedling P, provided on both sides of the container 51. A temperature control device 55 is provided to assist temperature management by spraying from the outside. The temperature control device 55 has a pair of second air passages having a plurality of outlets 55c so that the cold air or the hot air passes through the inside and the cold air or the hot air is blown toward the local area (the back side of the leaves) of the strawberry seedling P. A duct 55a and two second water pipes 55b that extend inside each second duct 55a and through which a cooling liquid or a warming liquid flows are provided. The 2nd water flow pipe 55b is comprised so that the gas inside the 2nd duct 55a may be cooled or heated over a longitudinal direction, and the temperature of the gas which blows off from each blowing outlet 55c will be adjusted. In the temperature adjusting device 55, a temperature difference is suppressed from being generated in the gas discharged from each outlet 55c between the upstream side and the downstream side of the duct 55a. That is, by using the temperature adjusting device 55 in combination with the growth assisting device 500, the temperature management of the strawberry seedling P can be performed more efficiently.

  The present invention is not limited to the above-described embodiments and modifications, and can be implemented in various modes as long as they belong to the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Plant growth apparatus 11 Container 12 Medium 13 Base 100 Growth assistance apparatus 101 Water flow pipe (flexible pipe with wave)
101a Groove 102 Joint portion 103 Water supply device 103a Piping 103b Circulation pump 104 Holder 104a Holding portion 104b Locking claw 104c Connection portion 105 Duct 106 Duct body 107 Outlet 108 Air duct P Strawberry seedling (plant)
P1 Crown

Claims (9)

A growth assisting device for assisting the growth of plants planted in a medium,
A plurality of water pipes in which a liquid having a temperature lower or higher than the ambient temperature flows;
A long duct in which gas is blown inside by a blower,
The duct is disposed on the medium such that the bottom surface is in contact with the medium.
The growth assisting device, wherein the plurality of water pipes are arranged at intervals in the duct.   The said water flow pipe is arrange | positioned so that it may adjoin to the said plant through the said duct, or the said plant through the said duct, The growth assistance apparatus of Claim 1 characterized by the above-mentioned.   The plant growing device according to claim 1 or 2, wherein the duct is formed with one or a plurality of outlets so that the gas is blown toward a local area of the plant.   The said water pipe is formed with the elongate body which has a cross-sectional square shape, The plant growing apparatus as described in any one of Claim 1 to 3 characterized by the above-mentioned.   The plant breeding apparatus according to any one of claims 1 to 4, wherein the water pipe is a corrugated flexible pipe.   The said auxiliary | assistant apparatus is formed with a soft film, The growth assistance apparatus as described in any one of Claim 1 to 5 characterized by the above-mentioned.   The growth assisting device according to any one of claims 1 to 6, further comprising a holder for holding the plurality of ducts at a predetermined interval. A plant growing device for growing a plant,
A medium in which a plant is planted or a plant is planted;
A plant growing device comprising: the growth assisting device according to any one of claims 1 to 7 installed so as to cool or warm the culture medium.   The plant growing apparatus according to claim 8, wherein the plant is a strawberry, and a crown portion of the strawberry is heated or cooled by the duct.

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