JP3070740U - Cultivation shelf - Google Patents

Abstract

(57) [Summary] [Problem] To reduce the temperature difference of the soil at a location along the longitudinal direction of the cultivation shelf to make the soil temperature uniform, to facilitate the management of the soil temperature, and to cultivate under more suitable environmental conditions. It is an object of the present invention to provide a cultivation shelf capable of performing the following. SOLUTION: A temperature adjusting pipe 3 is provided inside a cultivation shelf body 2.
And the temperature adjusting pipe 3 was returned inside the cultivation shelf main body 2.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a cultivation shelf used when cultivating a crop.

[0002]

[Prior art]

 Conventionally, when growing crops on cultivation shelves, cultivation shelves are often installed in indoor rooms such as plastic greenhouses where the temperature can be controlled in order to maintain the ambient temperature suitable for cultivation of the crops. However, even if the room temperature is controlled, it is difficult to control the temperature in the soil of the cultivation shelf due to the difference in the degree of heat transfer between the air and the soil and the specific heat. For this reason, in order to cultivate crops under environmental conditions suitable for crops, a temperature control pipe is provided so as to be buried in the soil inside the cultivation shelf. In some cases, the soil in the cultivation shelf is warmed or cooled from the inside by passing a fluid to adjust the temperature. However, the length of cultivation shelves tends to be long and is often provided at tens of meters or more in order to increase the efficiency of cultivation work. As a result, the length of the temperature control pipe becomes too long, and the temperature of the fluid near the beginning of the long cultivation shelf through which the fluid passes and the temperature of the fluid near the end of the long cultivation shelves change the heat exchange on the way. The temperature drop caused by this caused a considerable difference in temperature. Therefore, the temperature of the soil in the cultivation shelves was significantly different between the start and end points, and the environmental conditions of the crops changed between the start and end points of the cultivation shelves.

[0003]

[Problems to be solved by the invention]

 The problem to be solved by the present invention is to solve these problems and to reduce the temperature difference of the soil at the location along the longitudinal direction of the cultivation shelf to make the soil temperature uniform and to control the soil temperature. An object of the present invention is to provide a cultivation shelf that can be easily cultivated under more suitable environmental conditions.

[0004]

[Means for Solving the Problems]

 The configuration of the present invention that solves such a problem is as follows: 1) A temperature adjusting pipe that adjusts the temperature by flowing a fluid into the inside from the beginning of the cultivation shelf main body that is long on the left and right for cultivating the soil inside the cultivation shelf main body. The temperature control pipe is returned at the end or middle of the cultivation shelf main body, passed through the inside of the cultivation shelf main body, returned to the start end of the cultivation shelf main body, and projected outside. Flow the fluid through the reciprocating temperature control pipe to reduce the temperature difference between the soil at the location along the longitudinal direction of the cultivation shelf main body from the beginning of the cultivation shelf main body to the return of the temperature control pipe, making it uniform. Cultivation rack that can maintain a high soil temperature 2) A support is provided so that the temperature adjustment pipe can be maintained at a predetermined height inside the cultivation shelf body, and the temperature adjustment pipe is supported by the support to grow the temperature adjustment pipe. Setting position inside the shelf The cultivation shelf described in 1) above, which can be held. 3) The cultivation shelf body has a gutter shape, a long water passage groove is provided in the lower part of the cultivation shelf body in the left-right direction, and a water passage hole is provided at the upper end of the water passage groove. The cultivation shelf according to the above 1) or 2), further comprising a bottom cover, and a protruding tube protruding from both ends of the water passage groove to discharge the water to the outside.

[0005]

[Action]

 In the present invention, since the temperature control pipes are long on the left and right along the inside of the cultivation shelf body and the temperature control pipes are returned, the fluid passing through the temperature control pipes reciprocates. Become. As a result, at one location along the longitudinal direction of the main body of the soil cultivation shelf placed in the main body of the cultivation shelf, the soil is heated or cooled by both the outward and return paths of the temperature control pipe. When warming the soil inside the cultivation shelf body, the temperature in the temperature adjustment pipe near the start end of the cultivation shelf body where the temperature adjustment pipe is inserted into the cultivation shelf body has the highest temperature. The temperature of the fluid in the temperature control pipe gradually decreases as heat exchanges with the soil in the body. Near the beginning of the cultivation shelf body, it is heated by the fluid with the highest temperature in the outward path of the temperature control pipe and the fluid with the lowest temperature in the return path of the temperature control pipe. At a location distant from the beginning of the cultivation shelf body, the temperature of the fluid on the outward path of the temperature adjustment pipe is lower than the temperature of the outward path of the temperature adjustment pipe near the beginning, and the temperature of the fluid on the return path of the temperature adjustment pipe is near the beginning. The temperature is higher than the return path of the temperature adjusting pipe. Therefore, the average of the temperature of the forward and return paths of the temperature control pipe at a certain point along the longitudinal direction of the soil cultivation shelf main body placed in the cultivation shelf main body has a small temperature difference in this longitudinal direction, and is uniform. It is possible to set the soil temperature. When the soil is put in the cultivation shelf main body, the one provided with the support part of the temperature adjusting pipe is arranged so that the entire outer circumference of the temperature adjusting pipe can come into contact with the soil. The cultivation shelf body has a gutter shape, a water passage groove is provided at the lower part of the cultivation shelf body, a bottom cover is provided at the upper end of the water passage groove, and a projecting pipe protruding to the outside is provided. By doing so, the water or nutrient solution sprayed for cultivation is collected in the lower center, and only water or nutrient solution is collected in the water channel without passing through the soil through the water hole in the bottom cover, and can be drained from the projecting pipe.

[0006]

[Embodiment of the invention]

 Examples of the material of the temperature control pipe include metal and resin, and a pipe having an appropriate heat conductivity that allows heat exchange between a fluid passing through the inside of the pipe and the outside is preferable. There are various crops such as strawberries, cucumbers, tomatoes, and flowers.

[0007]

【Example】

 Embodiments of the present invention will be specifically described with reference to the drawings. Example (see FIGS. 1 to 3) In the example shown in FIGS. 1 to 3, the temperature adjustment pipe is provided inside the cultivation shelf main body, and a support for the temperature adjustment pipe is provided on the cultivation shelf main body. This is an example of a cultivation shelf in which the main body has a gutter shape and a water passage groove, a bottom cover, and a protruding tube are provided in the cultivation shelf main body. FIG. 1 is an explanatory diagram of a cultivation shelf of an example. FIG. 2 is a cross-sectional view of a state where the cultivation shelf of the example is used. FIG. 3 is an explanatory diagram of the cultivation shelf of the example. 1 is a cultivation shelf, 2 is a cultivation shelf main body, 2a is a water channel, 2b is a pipe support, 2c is a protruding tube, 3 is a temperature adjusting pipe, 4 is a root cloth, and 5 is a drainer used as a bottom cover. 5a is a drain hole provided as a water passage hole, 6 is a multi-film, 7 is a drip tube, 8 is a culture temperature sensor, 9 is a pipe base, 10 is a cultivating rod, 11 is a support rope, and 20 is a strawberry. Seedlings, 21 are soil, 22 is water.

The embodiment is an example of a cultivation shelf for growing strawberry seedlings. The cultivation shelf main body 2 is one in which a side wall is provided on a long plate material curved like a gutter. Inside the cultivation shelf main body 2, a partition plate provided with a concave groove in a shape capable of supporting the temperature adjusting pipe 3 at a predetermined height is provided as a pipe support portion 2b. The plurality of pipe support portions 2b are provided at predetermined intervals. Next, it is depressed outwardly long along the longitudinal direction so as to form a long water passage groove 2a along the longitudinal direction in the lower part of the cultivation shelf body 2. Further, a step is provided by slightly recessing from the inner periphery of the cultivation shelf body 2 to the outside in a rectangular shape surrounding the water passage groove 2a. Next, as shown in FIG. 2, the base portion that can support the cultivation shelf main body 2 by providing a bottom surface that is grounded below the lower end of the convex portion so that the convex portion to the outside of the water passage groove 2 a does not directly touch the ground. Provide. Next, a through hole to the outside is provided at both ends of the water passage groove 2a and at both ends of the base portion, and a projecting pipe 2c projecting outside is provided. The cultivation shelf main body 2 is mounted on a pipe base 9 assembled on the ground.

[0009] The long straight cultivation shelf body 2 has its end side higher than the start end side, and closes the raised end-side protruding tube 2c. Next, as shown in FIG. 1, a temperature adjusting pipe 3 is inserted from the start end of the cultivation shelf main body 2, and is provided along the cultivation shelf main body 2 so as to be attached to one groove of the pipe support portion 2 b. Next, the temperature adjusting pipe 3 is returned at the end portion of the cultivation shelf main body 2, and is provided along the cultivation shelf main body 2 so as to be attached to the other groove of the pipe support portion 2b. From the outside. Thereby, the temperature adjusting pipe 3 is provided so as to reciprocate in the cultivation shelf main body 2. The end of the temperature control pipe 3 is connected to the suction port of a motor pump (not shown), the discharge port of the motor pump is connected to the inlet of a boiler (not shown), and the beginning of the temperature control pipe is connected to the outlet of the boiler. I do. Therefore, the hot water in the temperature adjusting pipe 3 is heated by the boiler and circulated by the motor pump. Next, the root-proof cloth 4 is attached to the inner periphery of the cultivation shelf main body 2 as shown in FIG. Next, as shown in FIG. 2, a predetermined amount of soil 21 is put into the cultivation shelf main body 2, and provided long along the longitudinal direction of the cultivation shelf main body 2 so as to be placed on the surface of the soil 21. Next, a multi-film 6 for cultivation, which is mainly used for keeping heat, is attached so as to cover the surface of the soil and hang on the side of the cultivation shelf body 2. Next, the medium temperature sensor 8 is attached so as to be inserted into the multi-film 6 and the soil 21. Next, the cultivation bars 10 are attached to the side portions of the cultivation shelf main body 2 at predetermined intervals in the longitudinal direction. A part where the cultivating bar 10 is bent in a ring shape is provided in the middle and upper part of the cultivating bar 10. Next, the support rope 11 is attached so as to pass through the ring shape of the cultivation bar 10, and the support rope 11 is stretched along the cultivation shelf main body 2.

As shown in FIG. 2, strawberry seedlings 20 are planted on the cultivation shelf 1 and cultivated. When the temperature of the soil 21 detected by the medium temperature sensor 8 is lower than the temperature suitable for growing the strawberry seedlings 20, warm water is sent to the temperature control pipe 3 to warm the soil 21. Since the soil 21 is covered from above with the multi-film 6 having a high heat retaining effect, the soil 21 can be efficiently warmed.

When the soil 21 is warmed in this way, as shown in FIG. 1, warm water is passed through the temperature adjusting pipe 3 and reciprocated. The hot water has the highest temperature on the outward path of the temperature adjusting pipe 3 at the start end of the cultivation shelf body 2, and the temperature of the hot water gradually lowers after the temperature adjusting pipe 3 due to heat exchange with the soil 21. The temperature of the return section of the temperature control pipe 3 that returns to the starting end of the cultivation shelf main body 2 is the lowest. Since the temperature control pipe 3 is provided so as to reciprocate, in the portion near the beginning of the cultivation shelf main body 2, as shown in FIG. And the average temperature of the coldest part of the return trip. At the end of the cultivation shelf main body 2 slightly from the start end, the temperature of the forward path of the temperature adjustment pipe 3 is slightly lower than the start end, but the temperature of the return path of the temperature adjustment pipe 3 is slightly higher than the start end. The difference between the measured temperature and the averaged temperature at the beginning is small. Therefore, the soil 21 is warmed by a small temperature difference substantially uniform in the longitudinal direction of the cultivation shelf body. Therefore, the cultivation conditions in the longitudinal direction of the cultivation shelf main body 2 can be easily made uniform, and the management thereof is very easy. Therefore, the cultivation conditions can be adjusted more finely, and cultivation can be performed under more suitable environmental conditions. Conversely, if the temperature of the soil 21 detected by the medium temperature sensor 8 is higher than the temperature suitable for growing strawberry seedlings 20, water or cold water is passed through the temperature control pipe 3 to remove the soil 21. Just cool it.

Of the water given to the seedlings by the drip tube 7, the water that has flowed to the bottom without being absorbed by the soil 21 flows from the drain hole 5 a of the drain plate 5 to the water passage groove 2 a and goes out of the protruding tube 2 c to the outside. Is discharged. Further, after cultivation and harvesting, leaves and stems are cut, and water is deeply stored in the cultivation shelf main body 2 to rot the roots left on the soil of the cultivation shelf main body. Thereafter, hot water of about 85 ° C. is sent to the temperature adjusting pipe 3 to make the temperature of the soil 60 ° C. or higher and sterilize at a high temperature. After that, when the hot water is discharged, the soil is dried until the next year. At the next planting, the soil is extremely dry. Before the planting, the cultivation shelves are filled with water and the dried soil is hydrated. Usually, extremely dry soil for cultivation has high water repellency, so it is necessary to fill the cultivation shelves with water and force it to contain water. In the embodiment, the strawberry seedlings are supported by the supporting rope 11 so that the strawberry leaves are covered on the seedlings. Only the fruits attached by the strawberry are placed on the multi-film 6 outside the supporting rope 11 and exposed to sunlight. Try to promote fruit coloring. In addition, by setting the cultivation shelf at a predetermined height by the pipe base 9, the strawberry-caught fruit is maintained at a height that can be easily inspected and harvested by a person, thereby facilitating the work.

FIG. 4 shows another example of the embodiment. In another example of the embodiment, in order to sufficiently warm the soil of the long cultivation shelf, a temperature adjusting pipe 3 protruding from the beginning of the cultivation shelf into the inside of the cultivation shelf main body 2 is located near the center in the longitudinal direction of the cultivation shelf main body 2. Then, another temperature control pipe 3 is inserted into the cultivation shelf main body 2 from the end of the cultivation shelf and returned. This may be done depending on the temperature capability that can be sent and the length of the cultivation shelf body. Other symbols, configurations, operations, and usages are the same as those of the embodiment.

[0014]

[Effects of the Invention] According to the present invention, it is possible to reduce the temperature difference of the soil at a location along the longitudinal direction of the cultivation shelf to make the soil temperature uniform, to facilitate the management of the soil temperature, and to achieve more suitable environmental conditions. The cultivation shelf can be used for cultivation. The one provided with the support part for the temperature control pipe enables the heat transfer from the temperature control pipe to the soil of the cultivation shelf more efficiently. If the cultivation shelf body has a gutter shape, a water passage groove is provided at the lower part of the cultivation shelf body, a bottom cover is provided at the upper end of the water passage groove, and a protruding pipe that protrudes outside is sufficient for soil in the cultivation shelf. Water can be supplied to the cultivation shelf, the water can be drained so that it does not collect at the bottom of the cultivation shelf, and nutrient cultivation can be performed if necessary, and the cultivation shelf can be cultivated under more suitable environmental conditions. .

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a cultivation shelf of an example.

FIG. 2 is a cross-sectional view of a state where the cultivation shelf of the example is used.

FIG. 3 is an explanatory diagram of a cultivation shelf of an example.

FIG. 4 is an explanatory diagram of another example of the cultivation shelf of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cultivation shelf 2 Cultivation shelf main body 2a Water passage 2b Pipe support part 2c Projection pipe 3 Temperature control pipe 4 Root-proof cloth 5 Drain plate 5a Drain hole 6 Multi-film 7 Drip tube 8 Medium temperature sensor 9 Pipe base 10 Cultivation rod Lumber 11 Support rope 20 Strawberry seedling 21 Soil 22 Water

Claims (3)

[Utility model registration claims] 1. A temperature adjusting pipe for performing temperature adjustment by flowing a fluid into the inside from the beginning of a cultivation shelf main body that is long on the left and right and cultivating by putting soil therein is piped in the left and right direction inside the cultivation shelf main body. The temperature control pipe is provided so as to return at the end or middle of the cultivation shelf main body, pass through the inside of the cultivation shelf main body, return to the start end of the cultivation shelf main body and protrude to the outside, and fluid is reciprocated in the reciprocated temperature control pipe. A cultivation shelf capable of reducing the temperature difference of the soil at a location along the longitudinal direction of the cultivation shelf main body from the beginning of the cultivation shelf main body to the return of the temperature control pipe from the starting end of the cultivation shelf main body to obtain a uniform soil temperature. 2. A supporting portion is provided so that the temperature adjusting pipe can be held at a predetermined height inside the cultivation shelf main body. The temperature adjusting pipe is supported by the supporting portion, and the temperature adjusting pipe is provided inside the cultivating shelf main body. The cultivation shelf according to claim 1, wherein the cultivation shelf can be held at a set position. 3. The cultivation shelf body has a gutter shape, a long water passage groove is provided in the lower part of the cultivation shelf body in the left-right direction, and a bottom cover having a water passage hole is provided at the upper end of the water passage groove. The cultivation shelf according to claim 1 or 2, further comprising a protruding tube protruding from both ends for discharging to the outside.