JPH08252034A - Device for culturing plant - Google Patents

Abstract

PURPOSE: To provide a device for culturing a plant, capable of maintaining the temperature of roots of a plant at a fixed temperature suitable for a growth period, eliminating an operation for taking the plant to a mountain and enabling its culture in a plain part. CONSTITUTION: This device for culturing a plant comprises water piping routes 2 for supplying and discharging a fluid for temperature control and a root temperature control part having a temperature control chamber for passing through the fluid. Feed pipes of the water piping routes 2 for supplying and discharging the fluid are provided with plural branched outlets and return pipes of the supplying and discharging pipes are equipped with plural joined inlets. The feed pipes and the return pipes are horizontally held in parallel. The root temperature control part has a pot for planting and raising a plant, surrounds the side wall of the pot with an outer cylinder box, makes a temperature control chamber by the outer cylinder box and the pot and forms a placing face orientated downward so as to be brought into contact with the water supplying and discharging routes 2 on the surface of the peripheral wall of the outer cylinder box.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant cultivating apparatus which enables cultivation in a plain area at high temperature in summer.

[0002]

2. Description of the Related Art Conventionally, in the potted cultivation of plants which are symbidium, a orchid represented by cattleya and some flowers, flower buds are produced during the growth period from spring to autumn, especially during the growth period in summer. When it was kept at a temperature of 25 ° C. or higher for a long time, the flower buds turned yellow in the state of being wrapped in the leaf bladder, and “flower fly” that died as it was.

However, paying attention to the fact that "flower jumping" does not occur even in summer if the temperature is 20 ° C or less, from around 1965, in order to avoid the hot and humid climate of summer, pots will be extended to the mountainous areas that are high-cool areas. By carrying out mountain climbing that transports plants that are in the process of being planted together with growing, and by giving the plants an environment suitable for growth in the mountainous area, "flower jump" is suppressed and growth is promoted toward the full season. .

However, the land suitable for this mountain climbing is at an altitude of about 800 to 1000 m, it is easy to secure water, and it is necessary to consider the convenience of transportation when moving the pots. In addition, there is a large amount of cost and labor for transportation of pots, installation of irrigation facilities, and the like, and there is a drawback that deterioration of plants occurs due to contact between plants planted during transportation of pots.

[0005]

DISCLOSURE OF THE INVENTION The present invention maintains the root temperature of a plant at a constant temperature suitable for the growth period, eliminates the work of raising mountains in summer, and enables cultivation in a plain area, thus reducing cultivation costs. Eliminates deterioration during transportation, simplifies the structure of the cultivating device, stably mounts the root temperature adjustment unit, and recycles and reuses the fluid to reduce the running cost and simplify the temperature adjustment chamber. (EN) Provided is a plant cultivation device that enables formation and facilitates control of dimensional accuracy of a sealing part to facilitate manufacturing.

[0006]

SUMMARY OF THE INVENTION The present invention is provided with a fluid feed pipe and a return pipe in view of the problems such as a large amount of cost and labor due to the mountain climbing work based on the above-mentioned prior art, and deterioration of plants during transportation. , A temperature control chamber is defined by surrounding the side wall of the bowl with an outer cylinder box having a mounting surface to be brought into contact with the feed pipe and the return pipe, and a fluid is passed through the temperature control chamber. The present invention is intended to solve the above-mentioned drawbacks by providing a plant cultivating device, which is characterized in that the temperature of roots of plants planted in pots is kept constant.

The plant cultivating apparatus comprises a water supply / drainage pipeline for supplying and draining a temperature adjusting fluid, and a root temperature adjusting section provided with a temperature adjusting chamber.

The water supply / drainage pipe line is composed of a feed pipe and a return pipe, and this feed pipe is connected to a pump for pressurizing and supplying a fluid whose temperature is adjusted to a constant temperature, and is provided with a plurality of branch outlets. The pipe has multiple confluence inlets and drains,
The feed pipe and the return pipe are horizontally supported in parallel.

In addition, the root temperature adjusting section surrounds a pot for planting and growing a plant and a side wall of the pot with an outer cylinder box, and the outer cylinder box and the pot define the temperature adjusting chamber. The temperature adjustment chamber is equipped with a fluid inlet and outlet, the inlet is connected to the flow outlet, the outlet is connected to the inlet, and the outer surface of the outer wall of the outer casing contacts the feed pipe and return pipe. The mounting surface is formed to be directed downward.

As another plant cultivating device, a cold / hot water supply unit for controlling or maintaining a constant temperature by cooling or heating the fluid between the inlet of the feed pipe and the drain of the return pipe and supplying pressure is provided. It is provided.

Further, the outer cylinder box of the root temperature adjusting portion forms a top plate and a bottom plate at the upper and lower ends of the cylinder to form an outer cylinder box body, and the top plate and the bottom plate move to the upper opening side. According to the above, a top plate opening and a bottom plate opening are formed so that a pot with an expanded peripheral wall can be inserted, and a sealing member is attached to the bottom plate opening, and the bowl is inserted into the top plate opening and the bottom plate opening. Then, the temperature adjusting chamber is defined by accommodating the sealing member in a watertight manner on the peripheral wall on the bottom side of the pot, which is housed in the outer cylindrical box.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 1a are plant cultivation devices according to the present invention,
Regarding the cultivation devices 1 and 1a, one that is used as an open system for disposable temperature control fluid is used as the first cultivation device 1, and one that is used as a closed system that circulates and reuses the temperature control fluid. It is a second cultivation device 1a.

First, as shown in FIG. 1, for the first cultivating apparatus 1, groundwater which is maintained at a constant temperature throughout the year is used as a fluid for temperature control, and the groundwater is supplied. And water supply / drainage pipeline 2
And a root temperature adjusting unit 3 that adjusts the temperature around the root during plant growth by supplying groundwater from the water supply / drainage pipeline 2 and discharging groundwater to the water supply / drainage pipeline 2.

As the water supply / drainage pipe line 2, steel pipes, lining steel pipes, cast iron pipes, which are generally used in water supply equipment,
Horizontally supporting the feed pipe 4 and the return pipe 5, which are various pipe bodies such as a lead pipe, a copper pipe, a brass pipe, a vinyl pipe, and a polyethylene pipe, from the ground surface G at a predetermined height by appropriate column members 6, 6a. In addition, a predetermined distance X between the feed pipe 4 and the return pipe 5
It is provided by horizontally supporting it in parallel.

Further, the feed pipe 4 is a fluid through a valve 8 which forms an inflow port 7 at the upstream open end which is one end thereof, and which automatically or manually opens or closes a fluid passage in the inflow port 7. A pump 9 for pumping up and supplying pressurized ground water is connected, and a plurality of branch outlets 10, 10a ... Are formed on the pipe wall over the downstream side which is the other end of the feed pipe 4, and the branch outlets 10, 10a are formed. .. are provided with pipe joints 11, 11a.

The downstream open end, which is the other end of the feed pipe 4, may be one of the flow outlets 10, 10a ... Or may be closed.

In the return pipe 5, a plurality of confluence inlets are provided from the upstream side, which is one end, to the downstream side, which is the other end.
12, 12a ... Are formed in the tube wall by opening, and the confluent inlet 12,
.. are provided with pipe joints 11, 11a .., and the downstream end, which is the other end, serves as a drainage port 13.

The upstream open end, which is one end of the return pipe 5, may be closed or formed as one of the merge inlets 12, 12a.

Next, the root temperature adjusting section 3 contains a pot 14 for planting and growing a plant, the pot 14 is housed therein, and a side wall 14 of the pot 14 is placed.
It is composed of an outer cylinder box 15 surrounding the side wall 14a of the pot 14 so as to define a temperature control chamber R through which the fluid flows in and out around the a.

The bowl 14 is made of plastic and has a bottomed cylindrical shape with an upward opening, and a bowl main body 16 is formed in a tapered cylindrical shape in which the side wall 14a expands in diameter toward the upper opening side. A flange 17 is formed outward from the upper end opening edge 16a, and the flange 17 is curved downwardly.

A drain hole 18 is formed in the bottom 14b of the pot 14 for draining excess water that has been irrigated.

The outer cylinder box 15 is made of plastic and has a top plate 20 and a bottom plate at the upper and lower ends of a cylindrical body 19 that opens vertically.
21 to form an outer cylinder box main body 22 in a hollow shape, the outer cylinder box main body 22 has an outer diameter larger than that of the bowl 14,
The height is formed lower than that of the bowl 14, and the outer diameter of the lower part of the outer cylinder box body 22 is formed smaller than the space X between the feed pipe 4 and the return pipe 5, and such a portion is formed as the small diameter portion 23. , The upper side of the outer cylinder box body 22 is formed to have a larger diameter than the small diameter portion 23.
24, and the downwardly directed stepped wall surface formed at an intermediate portion in the vertical direction on the peripheral wall 15a of the outer cylindrical box 15 that connects the large diameter portion 24 and the small diameter portion 23 is formed as the mounting surface 25. .

Further, the mounting surface 25 is constituted by the stepped wall surface of the outer surface of the peripheral wall 15a of the outer cylindrical box 15 in which the large diameter portion 24 and the small diameter portion 23 are continuous, but is not limited to such a configuration, and FIG. As shown in FIG. 9, an outer cylinder box main body 22 is formed in the same outer diameter as the bowl 14 without forming a step wall surface, or has the same outer diameter in the vertical direction to form an outer cylinder box 15. A projecting piece 26 is provided outward from an intermediate portion of the outer surface of the peripheral wall 15a of the box 15 in the vertical direction, and the lower surface of the projecting piece 26 which faces downward is placed on the mounting surface 25.
In the case of the outer cylinder box 15 in which the outer cylinder box body 22 is formed into a tapered cylinder shape, the peripheral wall of the outer cylinder box 15
The outer diameter of any part of 15a in the vertical direction is the feed pipe 4 and the return pipe 5.
If the diameter is larger than the space X between them, the large-diameter portion becomes the mounting surface 25 without providing any protruding piece 26.

Further, the top plate 20 and the bottom plate 21 of the outer cylinder box body 22.
On the other hand, a top plate opening 27 and a bottom plate opening 28 which allow the pot 14 to be inserted are formed.On the other hand, a seal body 29 is formed in a ring shape as a separate body, and a mounting groove 30 opened in the outer diameter direction is formed. Formed on the outer peripheral surface to form sealing members 31 and 31a,
Top plate opening 27 and bottom plate opening in the mounting grooves 30 of 31, 31a.
The inner peripheral edge of 28 is inserted and attached.

The inner diameter of the seal member 31 attached to the bottom plate opening 28 is such that when the pot 14 is housed in the outer cylindrical box 15,
Between the lower tip edge 17a of the collar 17 and the top surface of the top plate 20 in the bowl 14,
The gap Y is larger than the size where the fingertip is inserted so that the collar 17 of 14 can be hooked with the fingertip and the bowl 14 can be taken out upward.
The inner diameter dimension is such that the outer side wall 14a of the pot 14 on the side of the bottom portion 14b of the pot 14 is watertightly adhered thereto.

Further, the inner peripheral diameter of the seal member 31a attached to the top plate opening 27 is such that, when the pot 14 is housed in the outer cylindrical box 15 in the same manner as described above, it is located below the collar 17 in the pot 14 Side wall
The inner diameter of the outer surface 14a is such that it adheres to the outer surface in a watertight manner or has a slight clearance.

The shapes and the like of the seal members 31, 31a are not limited to those in the above embodiment. For example, as shown in FIG. 10, the inner peripheral edge of the top plate opening 27 and the inner peripheral edge of the bottom plate opening 28 are shown. It is also possible to form an O-ring groove 33 in the O-ring groove 33 and mount the O-ring in the O-ring groove 33 as the seal members 31 and 31a.

Then, the outer cylinder box 15 is inserted from above the top plate opening 27 of the top plate 20 from the bottom 14b side of the pot 14, and at least the outer surface of the side wall 14a of the pot 14 on the bottom 14b side is attached to the bottom plate opening 28.
Watertightly adhere to the sealing member 31 of the
The temperature control chamber R is defined by the inner surface of the outer cylinder box 15 and the outer surface of the side wall 14a of the bowl 14, which is surrounded by the outer cylinder box 15 around the side wall 14a of the bowl 14.

Next, regarding the introduction part 34 for supplying the temperature adjusting fluid to the temperature adjusting chamber R in the root temperature adjusting part 3 and the discharging part 35 for discharging the fluid, the sealing members 31 above and below the temperature adjusting chamber R are used. , 31a are in a sealed state, and a lower seal member 31 seals only the lower part of the temperature adjusting chamber R so that the upper side is partially open.

First, as for the temperature control chamber R in a closed state, as shown in FIG. 7, it is necessary to remove the internal air in order to allow the fluid to flow into the temperature control chamber R. Since the discharge port 36 is formed in the plate 20 and the connection pipe 37 is connected to the discharge port 36 to form the discharge portion 35, and the introduction portion 34 may cause the fluid to flow into the temperature adjusting chamber R, An introduction port 38 is formed at an arbitrary position of the outer cylindrical box 15, and a connection pipe 37 is formed in the introduction port 38.
Are connected and configured.

Further, as shown in FIG. 11, if the air vent valve 39 for manually or automatically exhausting the air in the temperature control chamber R is provided, the discharge part 35 can be provided at any position of the outer cylindrical box 15.

Next, as shown in FIG. 12, the inlet 38 in the open temperature control chamber R is provided in the same manner as in the above-mentioned embodiment, and the discharge part 35 has a constant water level in the temperature control chamber R. A discharge port 36 for overflowing is formed in the peripheral wall 15a of the outer cylindrical box 15 which is a position to be maintained, and a connection pipe 37 is connected to the discharge port 36 to form a discharge part 35, or in the temperature adjusting chamber R. An overflow pipe 40 is provided internally to provide an overflow at a position where a constant water level is maintained, an overflow outlet 41 of the overflow pipe 40 is projected from the outer cylinder box 15 to the outside, and the overflow outlet 41 is discharged from the outlet. 36 and the discharge part 35 which also serves as the connection pipe 37.

In order to make the flow direction of the fluid pressurized and supplied from the introduction portion 34 a swirl flow that swirls the outer surface of the side wall 14a of the pot 14 to flow, as shown in FIG. The inlet 38 and the connection pipe 37 may be provided in the peripheral wall 15a of 15 or the side wall 14a of the pot 14 such that the inflow direction of the fluid is oblique.

Further, the bottom portion 14 of the pot 14 in the root temperature adjusting portion 3
Seal member attached to the b side and the bottom plate opening 28 of the outer cylinder box 15.
As another embodiment of the sealing structure at 31, as shown in FIG. 14, a reduced diameter portion 43 is formed on the bottom portion 14b side of the bowl 14 via a step surface 42 directed downward, and the reduced diameter portion 43 and The stepped surface 42 is brought into close contact with the seal member 31 in a watertight manner to increase the sealing area and improve the sealing function.

The outer cylindrical box 15 in the root temperature adjusting section 3
The mounting surface 25 of the above is placed in contact with the feed pipe 4 and the return pipe 5, and a plurality of root temperature adjusting parts 3 are arranged along the pipe length of the water supply / drainage pipe line 2. 34
And pipe joints 11 and 11 of the flow outlets 10 and 10a in the feed pipe 4.
a ... are connected by a pipe body 44, and the discharge part 35 in the root temperature adjusting part 3 and the merging inlet 12 in the return pipe 5,
The pipe joints 11 and 11a of 12a are connected by the pipe body 44 to form the first cultivation device 1.

Next, as for the second cultivation apparatus 1a, as shown in FIG. 2, the same components as those of the first cultivation apparatus 1 are omitted,
Explaining the different structure, the inlet port 7 on the upstream side of the supply pipe 4 and the drain port 13 on the downstream side of the discharge pipe 5 will be described.
A cold / hot water supply unit 45 having a function of cooling or heating the fluid in between to control it to a constant temperature and having a pump (not shown) for supplying the fluid under pressure is connected via a pipe body 44. A valve 8a for manually or automatically opening and closing a fluid passage is provided in the pipe body 44 between the outlet 45a of the cold / hot water supply unit 45 and the inflow port 7 on the upstream side of the supply pipe 4, and the cold / hot water supply is provided. In the pipe body 44 between the return port 45b of the portion 45 and the drainage port 13 on the downstream side of the discharge pipe 5, a valve 8b for manually or automatically opening and closing the fluid passage is provided, and the feed pipe 4, the return pipe 5, and the cold temperature The water supply unit 45 circulates and reuses the temperature adjusting fluid.

Further, a replenishing pipe 46 for replenishing the fluid to the cold / hot water supply unit 45 is connected.

Then, as in the first cultivation apparatus 1, a plurality of root temperature adjusting sections 3 are arranged on the feed pipe 4 and the return pipe 5 in a line.
The pipe fittings 11, 11a ... of the introduction portion 34 of the root temperature adjusting portion 3 and the flow outlets 10, 10a.
The pipe joints of the discharge part 35 in the root temperature adjusting part 3 and the merging inlets 12, 12a in the return pipe 5 are connected by 44.
, 11a ... Are connected by a pipe body 44 to form a second cultivation device 1a.

The operation of the plant cultivating apparatus according to the present invention will be described. First, in the first cultivating apparatus 1, ground water is used as a temperature adjusting fluid, and this ground water is sent by the pump 9. When pressure is fed from the inlet 7 of the pipe 4, the pipe body 44 is fed from the outlets 10 and 10a of the feed pipe 4.
Through the introduction part 34 in each root temperature adjusting part 3 into the temperature adjusting chamber R, and then the temperature adjusting chamber R is filled with groundwater, and finally the groundwater is discharged from the discharge part 35 through the pipe body 44. It flows in from the confluence inlets 12, 12a ... Of the return pipe 5, and is discharged from the drainage port 13.

As described above, since the groundwater having a constant temperature always passes through the temperature adjusting chamber R in a state of being filled, the environmental temperature around the roots of the plants can be controlled through the side wall 14a of the pot 14 in winter. In that case, the temperature can be maintained at a constant temperature, and in summer, the temperature can be maintained at a constant temperature even when the temperature in the plain is high (25 ° C. or higher).

The temperature of groundwater is constant at only 1 to 2 ° C. higher than the average temperature throughout the year, but the plants of this embodiment are symbidium, a western orchid represented by Cattleya, and some of them. Since it is a flower and therefore the ambient temperature around the root is about 18 ° C, it is necessary to adjust the temperature of the root to the temperature through the temperature adjusting chamber R. The flow rate and temperature of the groundwater to be used are adjusted appropriately.

Next, the second cultivating apparatus 1a is basically the same as the above-mentioned first cultivating apparatus 1, but in the case of the present embodiment, the fluid is circulated and reused. And the fluid whose temperature is regulated and controlled by the cold / hot water supply unit 45 is
The feed pipe 4, the root temperature adjusting unit 3, and the return pipe 5 are sequentially flowed and circulated.

The fluid that is being recycled and reused can be replenished from the replenishment pipe 46 because it is reduced during the circulation due to evaporation, leakage, and the like.

Regarding the operation common to the first cultivation device 1 and the second cultivation device 1a, particularly, the inflow direction of the fluid flowing from the introduction part 34 of the root temperature adjusting part 3 is set to the side wall 14 of the pot 14.
In the case of a or slantingly with respect to the peripheral wall 15a of the outer cylindrical box 15, the fluid becomes a swirling flow around the side wall 14a of the bowl 14, so that the temperature inside the temperature adjusting chamber R is made uniform. As a result, the heat exchange from the temperature adjustment chamber R to the bowl 14 or from the bowl 14 to the temperature adjustment chamber R becomes good.

[0045]

In summary, the present invention provides a feed pipe 4 and a return pipe 5.
A water supply / drainage pipe line 2 for supplying and draining a temperature adjusting fluid and a root temperature adjusting section 3 provided with a temperature adjusting chamber R for passing such a fluid, and the feed pipe 4 of the water supply / drainage pipe line 2 is kept at a constant temperature. It is connected to a pump 9 that supplies the adjusted fluid under pressure, and also has a plurality of flow outlets 10, 10.
a ... is provided, and the return pipe 5 has a plurality of confluence inlets 12, 12a.
... and a drainage port 13 are provided, the feed pipe 4 and the return pipe 5 are horizontally supported in parallel, and the root temperature adjusting section 3 has a pot 14 for planting and growing plants and a side wall 14a of the pot 14. Is surrounded by an outer cylinder box 15, and the temperature adjustment chamber R is surrounded by the outer cylinder box 15 and the bowl 14.
And a fluid introduction part 34 and a discharge part 35 in the temperature control chamber R.
, And the discharge part 35 is connected to the merging inlets 12 and 12a, while the introduction part 34 is connected to the branch outlets 10 and 10a. The temperature of the roots of the plants housed in the pot 14 can be maintained at a constant temperature suitable for the growing season, which eliminates the need for conventional mountain raising work even in the summer and enables cultivation in hot plains. Therefore, it is possible to reduce the labor, cost, and the like of mountain climbing to reduce the cultivation cost, and it is possible to eliminate the deterioration of plants during transportation.

Further, since the mounting surface 25 is formed on the outer surface of the peripheral wall 15a of the outer cylindrical box 15 so as to come into contact with the feed pipe 4 and the return pipe 5, the feed pipe 4 and the return pipe 5 are connected to each other. Since the fluid supply path to the temperature adjusting chamber R in the temperature adjusting unit 3 can also serve as a supporting member for mounting and supporting the root temperature adjusting unit 3, a member for supporting the root temperature adjusting unit 3 is separately provided. Since it is not necessary to provide it, the structure of the cultivating devices 1 and 1a can be simplified, and since the placing surface 25 is provided on the peripheral wall 15a, the contact surfaces with the feed pipe 4 and the return pipe 5 are circular and stable. Then, the root temperature adjusting unit 3 can be placed.

Further, the feed pipe 4 of the water supply / drainage pipeline 2 is provided with an inflow port 7
And a plurality of branch outlets 10 and 10a are provided, and the return pipe 5 is provided with a plurality of confluent inlets 12 and 12a and a drainage port 13 to horizontally support the feed pipe 4 and the return pipe 5 in parallel. Since the cold / hot water supply unit 45 is provided between the inflow port 7 and the drain port 13 to control or maintain the fluid at a constant temperature by cooling or heating the fluid, the fluid is circulated and reused. In addition to the effect, the running cost can be reduced because the amount of fluid used can be reduced.

The outer cylinder box 15 has a top plate 20 at the upper and lower ends of the cylinder body 19.
And the bottom plate 21 is formed to form the outer cylinder box main body 22, and the top plate 20 and the bottom plate 21 can be inserted into the top plate 20 in which the pot 14 with the diameter of the pot peripheral wall 14a is expanded as it moves to the upper opening side. 27
And the bottom plate opening 28 is formed, the sealing member 31 is attached to the bottom plate opening 28, and the sealing member 31 is inserted into the top plate opening 27 and the bottom plate opening 28 and accommodated in the outer cylinder box body 22. Water-tightly adhere to the peripheral wall 14a of the pot 14 on the bottom 14b side of the temperature control chamber R
Since it is provided by defining the
The temperature adjusting chamber R can be easily formed by inserting and accommodating in the pot 15, and the pot 14 has a constant weight in which soil and plants are accommodated, and the pot 14 is formed in a tapered tube shape. Therefore, since the adhesion can be secured without being affected by the dimensional accuracy at the sealing portion, the dimensional accuracy can be easily controlled and the manufacturing can be facilitated, and the fluid leakage from the temperature adjusting chamber R can be prevented. The practical effect is enormous.

[Brief description of drawings]

FIG. 1 is a system schematic configuration diagram of a first plant cultivation device according to the present invention.

FIG. 2 is a system schematic configuration diagram of a second plant cultivation apparatus according to the present invention.

FIG. 3 is a partial perspective view showing a water supply / drainage pipeline and a root temperature adjusting unit in the first and second cultivation devices.

FIG. 4 is a partial plan view showing a water supply / drainage pipeline and a root temperature adjusting unit in the first and second cultivation devices.

FIG. 5 is a partial side view showing a water supply / drainage pipeline and a root temperature adjusting unit in the first and second cultivation devices.

FIG. 6 is a partially cutaway front view showing a water supply / drainage pipeline and a root temperature adjusting unit in the first and second cultivation apparatuses.

FIG. 7 is a partially cutaway perspective view showing a root temperature adjusting unit in the first and second cultivation devices.

8 is a cross-sectional view showing another embodiment in which the shape of the outer cylindrical box of the root temperature adjusting section in FIG. 7 is changed and the introduction section and the discharge section are omitted.

9 is a cross-sectional view showing another embodiment in which the shape of the outer cylindrical box of the root temperature adjusting section in FIG. 7 is changed and the introduction section and the discharge section are omitted.

10 is a partially cutaway perspective view showing another embodiment in which the shape of the seal member of the root temperature adjusting unit in FIG. 7 is changed.

FIG. 11 is a partially cutaway perspective view showing another embodiment in which an air vent valve is provided in the root temperature adjusting portion in FIG.

12 is a partially cutaway perspective view showing another embodiment in which the discharge part of the root temperature adjusting part in FIG. 7 is changed.

13 is a partially cutaway perspective view showing another embodiment in which the discharge part and the introduction part of the root temperature adjusting part in FIG. 7 are changed.

14 is a partially cutaway perspective view showing another embodiment in which the shape of the root temperature adjusting portion on the bottom side of the pot in FIG. 7 is changed.

FIG. 15 is a partially omitted cross-sectional view showing a state in which plants are planted in the root temperature adjusting unit.

[Explanation of symbols]

 2 Water supply / drainage pipe line 3 Root temperature adjustment part 4 Feed pipe 5 Return pipe 9 Pumps 10, 10a… Shunt outlet 12, 12a… Merge inlet 13 Drain port 14 Bowl 14a Side wall 15 Outer casing 15a Circular wall 19 Cylinder 20 Top plate 21 Bottom plate 22 Outer cylinder box body 25 Mounting surface 27 Top plate opening 28 Bottom plate opening 31 Sealing member 34 Introductory part 35 Discharging part 45 Cold / hot water supply part

Claims (3)

[Claims] 1. A feed / drainage pipe comprising a water supply / drainage pipe line for supplying and draining a temperature adjusting fluid through a feed pipe and a return pipe, and a root temperature adjusting section provided with a temperature adjusting chamber for passing such a fluid. The pipe is connected to a pump that pressurizes and supplies a fluid adjusted to a constant temperature, and is provided with a plurality of diverging outlets, and the return pipe is provided with a plurality of merging inlets and drainage ports. And the root temperature adjusting section is surrounded by a pot for planting and growing plants and the side wall of the pot with an outer cylinder box, and the temperature adjusting chamber is defined by the outer cylinder box and the pot. The temperature control chamber is provided with a fluid introduction part and a discharge part, the introduction part is connected to the diversion outlet, the discharge part is connected to the confluence inlet, and the feed pipe and the return pipe are provided on the outer surface of the peripheral wall of the outer cylinder box. Forming a mounting surface that points downward and should contact the top An apparatus for cultivating plants. 2. A water supply / drainage pipe line for supplying and draining a temperature adjusting fluid by means of a feed pipe and a return pipe, and a root temperature adjusting section provided with a temperature adjusting chamber for passing such a fluid. The pipe is provided with an inflow port and a plurality of diverging outlets, and the return pipe is provided with a plurality of merging ports and a drainage port, and the feed pipe and the return pipe are horizontally supported in parallel and between the inflow port and the drainage port. A cold / hot water supply unit for cooling or heating a fluid to control it at a constant temperature and supplying it under pressure is provided, and a root temperature adjusting unit is a pot for planting and growing plants and an outer cylinder around the side wall of the pot. The temperature control chamber is surrounded by a box, and the temperature control chamber is defined by the outer cylinder box and the pot. The temperature control chamber is provided with a fluid introduction part and a discharge part, and the introduction part is connected to the diversion outlet, and the discharge part is joined. Connected to the inlet, and a feed pipe on the outer surface of the outer wall of the outer cylinder box. Also, a plant cultivating device, characterized in that a mounting surface is formed on the return pipe, the mounting surface being directed downward to be brought into contact with the return pipe. 3. A top plate and a bottom plate are formed at the upper and lower ends of a tubular body to form an outer cylinder box body, and a pot whose peripheral wall is expanded in diameter toward the upper opening side is formed on the top plate and the bottom plate. A top plate opening and a bottom plate opening which are freely insertable are formed, and a sealing member is attached to the bottom plate opening to form an outer cylinder box. An outer cylinder is formed by inserting a pot into the top plate opening and the bottom plate opening. The temperature control chamber is defined by being housed in a box, and a sealing member is watertightly adhered to the peripheral wall on the bottom side of the bowl to define a temperature control chamber.
Plant cultivation equipment.