TWI693883B - Agricultural house - Google Patents

Abstract

The object of the present invention is to provide an agricultural house that can efficiently ventilate in both the open state and the closed state of the curtain. In the agricultural house (1) of the present invention, the outer shell (10) includes a first mountain wall surface (103) and a second mountain wall surface (104) and a roof (100) facing each other. A plurality of suction fans (31) are provided on the first mountain wall (103) to send outside air into the housing (10). A plurality of exhaust fans (32) are provided on the second mountain wall (104) to discharge the air in the casing (10) out of the casing (10). The curtain (20) is configured to be deformable between an open state and a closed state. The closed curtain (20) divides the interior of the casing (10) into an upper space (13a) and a lower space (13b) below the upper space, and makes the space between the upper space (13a) and the lower space (13b) Ventilate and dim the light incident from the roof (100).

Description

Agricultural house

The present invention relates to agricultural houses.

In the past, there was an agricultural house (for example, refer to Japanese Unexamined Patent Publication No. 2014-103856), in order to adjust the cultivation environment of plants, it is equipped with: a fan for ventilation; and a curtain for the sunlight to the internal space Blocked by irradiation. In the conventional agricultural house, when the temperature of the internal space is higher than a predetermined temperature, the ventilation fan is operated to perform ventilation, thereby reducing the temperature of the internal space. In addition, the conventional agricultural house has a curtain covering the upper part of the internal space, and the curtain is closed to block the sunlight. This means that by opening and closing the curtain, the length of sunlight (the length of daylight) in the interior space is adjusted.

However, in the above-mentioned conventional agricultural house, the airflow of the fan greatly changes due to the opening and closing state of the curtain, so it is difficult to efficiently ventilate both the opening state and the closed state of the curtain.

[Problems to be solved by the invention]

The object of the present invention is to provide an agricultural house that can efficiently exchange air in both the open state and the closed state of the curtain. [Method of solving the problem]

The agricultural house according to one aspect of the present invention includes a housing, a plurality of suction fans, a plurality of exhaust fans, and a curtain. The shell has a first mountain wall and a second mountain wall and a roof facing each other. The plurality of suction fans are provided on the first mountain wall, and the outside air is sent into the housing. The plural exhaust fans are provided on the second gable wall, and the air in the casing is discharged out of the casing. The aforementioned curtain is disposed within the aforementioned housing. The aforementioned curtain is configured to be deformable between the following states: a closed state, which is pulled out in the aforementioned housing; and an open state, which is collapsed in the aforementioned housing. The curtain in the closed state divides the interior of the casing into an upper space and a lower space below the upper space, and allows ventilation between the upper space and the lower space, and at least light incident from the roof Perform dimming.

[Preferable embodiment of the invention]

The following embodiments generally relate to agricultural houses. More specifically, it relates to an agricultural house with a curtain that shields incident light.

The agricultural houses of each embodiment described below are expected to be agricultural houses in which plants are cultivated. The type of plant is not particularly limited, and can be selected from fruit vegetables, beans, fruits, flowers, leaf vegetables, and the like. Leafy vegetables represent spinach, small pine vegetables, lettuce, cabbage, Chinese cabbage, etc. Also, fruits and vegetables represent tomatoes, cucumbers, eggplants, etc.

Each embodiment described below is for growing plants in a farm installed in an agricultural house. In addition, each embodiment is described by taking soil cultivation as an example, but even if isolated ground cultivation using root-proof permeable plates or the like is used, the technology of each embodiment of the present invention can be used.

[Embodiment 1] As shown in FIG. 1, the agricultural house 1 of Embodiment 1 is provided with a housing 10 composed of a frame 11 as a structural member and a covering body 12 supported by the frame 11.

The frame 11 is formed of a metal tube or rod (wire) with a diameter of 10 [mm] or more and 50 [mm] or less. For the metal forming the frame 11, aluminum or iron with anti-rust treatment such as zinc plating on the surface is used. Further, the frame 11 is formed in an inverted U shape, and integrally includes two support pillars 111 arranged in a row and a connection portion 112 that connects one end of each of the two support pillars 111. The connecting portion 112 is shown as an example formed in a smooth arc shape, but may be formed in an inverted V shape in which one end of each of the two straight lines is butted.

The cover 12 is formed of a light-transmitting member. The cover 12 is made of a synthetic resin film with light transmission (preferably transparent). The thickness of the synthetic resin film used for the covering body 12 is generally 0.1 [mm] or more and 3 [mm] or less, but it may also exceed this range. In addition, the synthetic resin film used for the covering body 12 is selected from polyvinyl chloride, polyolefin, fluororesin, and the like. In addition, the covering body 12 may also be a glass having translucency.

The plural frames 11 are respectively arranged in a direction crossing the surrounding surface. With the plural frames 11 arranged, the covering body 12 is erected on the plural frames 11. Further, the housing 10 of the agricultural house 1 is as follows: the covering body 12 covers the entire circumference, and covers a virtual three-dimensional object formed by arranging a plurality of frames 11.

The agricultural house 1 is integrally provided with a roof 100 having a semicircular cross-section, two side surfaces 101 and 102 supporting the roof 100 and facing each other, and two mountain walls perpendicular to the two side surfaces 101 and 102 and facing each other 103, 104. Therefore, the agricultural house 1 is formed to have an inverted U-shape in a cross section orthogonal to the direction connecting the two gable walls 103 and 104. The size of the direction in which the two gable walls 103 and 104 are connected is designed to be sufficiently larger than the direction in which the two side surfaces 101 and 102 are connected. Hereinafter, the direction in which the two gable walls 103 and 104 are connected is called the first direction X1 (depth direction), and the direction in which the two side surfaces 101 and 102 are connected is called the second direction X2 (width direction). In addition, the side surface 101 is called the first side surface 101, the side surface 102 is called the second side surface 102, the mountain wall surface 103 is called the first mountain wall surface 103, and the mountain wall surface 104 is called the second mountain wall surface 104.

The housing 10 of the agricultural house 1 surrounds the farm 40. The farm 40 is formed with a plurality of ridges 41 that are more raised than other parts. The longitudinal direction of the ridge 41 is along the first direction X1, and a plurality of ridges 41 are formed in the second direction X2. Each of the plural ridges 41 grows the plant body 50 (refer to FIGS. 2A and 2B ).

As shown in FIG. 1, the agricultural house 1 includes a light-reducing curtain (ceiling curtain) 20 inside the housing 10. The curtain 20 is deformed in a second direction X2 between a closed state (unfolded state) and an open state (collapsed state), wherein the closed state covers the upper part of the farm 40, and the open state replaces The upper part of the farm 40 is opened. That is, the closed state of the curtain 20 is a state in which the sheet-shaped curtain 20 is pulled out so as to face the roof 100 in the housing 10. In addition, the curtain 20 in the closed state reduces the light incident through the roof 100 into the housing 10. In addition, when the curtain 20 is opened, the curtain 20 is folded, and the inner surface of the roof 100 is exposed when viewed from below in the housing 10. In addition, the curtain 20 in the open state does not dim the light entering the housing 10 through the roof 100.

As shown in FIGS. 2A and 2B, the curtain 20 is composed of a first curtain 21 and a second curtain 22. Each of the first curtain 21 and the second curtain 22 is configured to be independent of each other, and can be deformed between a closed state and an open state. The first curtain 21 and the second curtain 22 are films or nets of synthetic resin, and have a function of weakening sunlight. The light transmittance of the first curtain 21 and the second curtain 22 is set to, for example, 65% or more and 75% or less. In addition, the light transmittance can also be set smaller. The material forming the first curtain 21 and the second curtain 22 is, for example, polyolefin.

The fixed end (one end) of the first curtain 21 is fixed to the upper end (or near the upper end) of the first side face 101. The first curtain 21 in the open state is folded at the upper end (or near the upper end) of the first side surface 101 in a state of being wound into a drum shape. Moreover, the first curtain 21 gradually covers the lower bottom surface side of the roof 100 by pulling the unfixed front end (the other end) toward the apex of the roof 100. When the front end of the first curtain 21 is further pulled, the front end of the first curtain 21 reaches below the apex of the roof 100 and becomes a closed state covering half of the roof 100 (first side 101 side) from below. Moreover, the first curtain 21 is wound and folded, so that the first curtain 21 is changed from the closed state to the open state.

The fixed end (one end) of the second curtain 22 is fixed at the upper end (or near the upper end) of the second side 102, and the second curtain 22 in the open state is wound at the upper end (or near the upper end) of the second side 102 Collapsed in a drum-like state. Moreover, the second curtain 22 gradually covers the lower bottom surface side of the roof 100 by pulling the unfixed front end (the other end) toward the apex of the roof 100. When the front end of the second curtain 22 is further pulled, the front end of the second curtain 22 reaches below the apex of the roof 100 and becomes a closed state covering half of the roof 100 (second side 102 side) from below. In addition, the second curtain 22 is wound and folded, so that the second curtain 22 changes from the closed state to the open state.

That is, the first curtain 21 and the second curtain 22 are wound in a roll shape to be in an open state, and are pulled out obliquely upward from the state of being wound in a roll shape toward the center of the housing 10 to be in a closed state. In addition, the first curtain 21 and the second curtain 22 may be folded into a telescopic bag shape to become an open state, and may be pulled out from a state folded into a telescopic bag shape to become a closed state.

Furthermore, in the state where the first curtain 21 is in the closed state, the lower bottom surface of the first curtain 21 forms a first inclined surface 210 that extends diagonally upward from the upper end of the first side surface 101 toward the vertex of the roof 100. In the closed state of the second curtain 22, the lower bottom surface of the second curtain 22 forms a second inclined surface 220 that extends diagonally upward from the upper end of the second side surface 102 toward the vertex of the roof 100. Further, the front ends of the first curtain 21 and the second curtain 22 are close to each other, and the curtain 20 is formed into a mountain-like shape whose apex extends along the first direction X1 in a straight line.

In addition, the housing 10 is provided with a supporting member that supports the closed first curtain 21 that extends diagonally upward from the upper end of the first side 101 toward the vertex of the roof 100, and the first curtain 21 extends along this supporting member It deforms between the closed state and the open state. In addition, the housing 10 is provided with a supporting member that supports the closed second curtain 22 that extends diagonally upward from the upper end of the second side 102 toward the vertex of the roof 100, and the second curtain 22 extends along the supporting member It deforms between the closed state and the open state.

For the support members that support the first curtain 21 and the second curtain 22 respectively, a metal frame such as aluminum, stainless steel, iron, or a resin frame is used. However, the support member may not be a member with high rigidity such as a metal frame or a resin frame. The support member only needs to be able to support the first curtain 21 and the second curtain 22 so as not to descend excessively downward. For example, the support member may use soft materials such as rope, metal wire, and resin wire.

The method of deforming the first curtain 21 and the second curtain 22 between an open state and a closed state may, for example, transmit the driving force of a power source such as a motor to the first curtain 21 and the second by a driving mechanism The method of curtain 22. Moreover, even if the operator pulls the drawstring connected to the first curtain 21 and the second curtain 22, the first curtain 21 and the second curtain 22 can be deformed between the open state and the closed state. In addition, a specific method of opening and closing the curtain is well known, and detailed description is omitted.

Furthermore, as shown in FIG. 1, the agricultural house 1 includes a window 25 in the housing 10. The window 25 can be moved between the following positions: an open position: ventilating between the inside and the outside of the housing 10; and a closed position, blocking the inside and the outside of the housing 10 without venting. The window 25 is provided on each of the first side 101 and the second side 102. By adjusting the opening degree, the window 25 adjusts the ventilation resistance of the air during ventilation between the inside and the outside of the housing 10. The window 25 of each of the first side 101 and the second side 102 is independently driven by the driving device. The driving device includes a power source such as an electric motor, and driving mechanisms corresponding to the windows 25, respectively.

Next, three first air intake fans 31a and three second air intake fans 31b are arranged above the first gable wall 103 of the agricultural house 1. Three first suction fans 31a are arranged in the second direction X2 in the vicinity of the center of the first gable wall 103 in the second direction X2. Three second air intake fans 31b are arranged on the lower side of the three first air intake fans 31a along the second direction X2. The three second intake fans 31b are provided with entrances for the operator to enter and exit. In addition, in a state where the first intake fan 31a and the second intake fan 31b are not distinguished, it is referred to as the intake fan 31.

In addition, three first exhaust fans 32 a and three second exhaust fans 32 b are arranged above the second gable wall 104 of the agricultural house 1. The three first exhaust fans 32a are arranged along the second direction X2 near the center of the second gable wall 104 in the second direction X2. Under the three first exhaust fans 32a, three second exhaust fans 32b are arranged side by side along the second direction X2. In addition, it is referred to as an exhaust fan 32 in a state where the first exhaust fan 32a and the second exhaust fan 32b are not distinguished.

The air intake fan 31 and the air exhaust fan 32 perform mechanical ventilation to ventilate the agricultural house 1 and contribute to the adjustment of the internal environment (internal temperature, internal humidity, etc.) of the agricultural house 1.

The agricultural house 1 controls the operation of equipment such as the curtain 20, the window 25, the suction fan 31, and the exhaust fan 32, thereby controlling the internal environment of the agricultural house 1. Therefore, the environment in which the plant body 50 is raised can be adjusted in the agricultural house 1.

Hereinafter, the curtain 20, the window 25, the fan 31 for suction, and the fan 32 for exhaust will be described in detail using FIGS. 2A, 2B, 3A, 3B, 4A, and 4B.

The curtain 20 in the closed state is formed by the first curtain 21 and the second curtain 22 in a shape like a gable roof whose apex extends along the first direction X1. That is, the internal space 13 of the housing 10 is divided into an upper space 13a and a lower space 13b by the curtain 20 in a closed state (see FIGS. 2A and 2B ). The upper space 13a is a space above the curtain 20, and the lower space 13b is a space below the curtain 20. The plant body 50 is present in the lower space 13b.

As shown in FIG. 2A, the first air intake fan 31a is provided on the first gable wall 103 so as to face the upper space 13a. The second air intake fan 31b is provided on the first gable wall 103 so as to face the vicinity of the upper end of the lower space 13b. That is, the first air intake fan 31a is arranged above the curtain 20, and sends outside air into the upper space 13a. In addition, the second air intake fan 31b is disposed below the curtain 20, and sends outside air into the lower space 13b.

As shown in FIG. 2B, the first exhaust fan 32a is provided on the second gable wall 104 so as to face the upper space 13a. The second exhaust fan 32b is provided on the second gable wall 104 so as to face the vicinity of the upper end of the lower space 13b. That is, the first exhaust fan 32a is arranged above the curtain 20, and discharges the air in the upper space 13a to the outside. In addition, the second exhaust fan 32b is disposed below the curtain 20, and discharges the air in the lower space 13b to the outside.

In summer daytime, the first intake fan 31a, the second intake fan 31b, the first exhaust fan 32a, and the second exhaust fan 32b are usually operated (rotated) and the first side 101 The window 25 of each of the second side faces 102 is opened.

Moreover, in summer daylight, there may be a case where sunlight enters the housing 10 and the temperature in the internal space 13 rises above a predetermined temperature. In this case, the curtain 20 is closed, so that the amount of sunlight directly irradiated to the lower space 13b where the plant body 50 exists is reduced. Furthermore, in the lower space 13b, high-temperature air moves upward. Then, the second exhaust fan 32b exhausts the high-temperature air in the lower space 13b to the outside (see FIG. 4A). In addition, by the second air intake fan 31b, outer air lower in temperature than the lower space 13b is sent to the lower space 13b (see FIG. 4A).

Furthermore, since the high-temperature air in the lower space 13b moves upward, the air pressure below the lower space 13b is lower than the air pressure above the lower space 13b. In addition, the air pressure below the lower space 13b may be lower than the external air pressure (negative pressure state). Therefore, the outside air is efficiently drawn into the lower space 13b through the opened window 25, and ventilation is further promoted.

In addition, the curtain 20 is opened, whereby the upper space 13a and the lower space 13b in the housing 10 communicate with each other to become one internal space 13 (see FIGS. 3A and 3B ). When the curtain 20 is opened, the amount of sunlight directly irradiating the plant body 50 can be increased. Then, the high-temperature air moves above the internal space 13. Then, the high-temperature air in the internal space 13 is discharged to the outside by the first exhaust fan 32a and the second exhaust fan 32b, and by the first intake fan 31a and the second intake fan 31b And the outside air is sent into the internal space 13 (refer FIG. 4B).

Furthermore, since the high-temperature air in the internal space 13 moves upward, the air pressure on the lower side of the internal space 13 is lower than the air pressure on the upper side of the internal space 13. In addition, the air pressure below the internal space 13 may be lower than the external air pressure (negative pressure state). Therefore, the outside air is efficiently drawn into the internal space 13 through the opened window 25, and the ventilation is further promoted. In addition, the agricultural house 1 of the present embodiment is provided with at least one first intake fan 31a, at least one second intake fan 31b, at least one first exhaust fan 32a, and at least one second exhaust Fan 32b is sufficient.

In addition, the total amount of air volume sent into the casing 10 by the plural intake fans 31 is preferably less than the total amount of air volume discharged from the casing 10 by the plural exhaust fans 32. In particular, the total amount of air volume sent into the casing 10 by the three first intake fans 31a is preferably less than the total amount of air volume discharged from the casing 10 by the three first exhaust fans 32a. In addition, the total amount of air volume sent into the casing 10 by the three second intake fans 31b is preferably less than the total amount of air volume discharged from the casing 10 by the three second exhaust fans 32b.

Specifically, in the case where the intake fan 31 and the exhaust fan 32 are the same number of fans with different specifications from each other, as long as the intake fan 31 uses less air than the exhaust fan 32 The fan is sufficient.

In addition, when the intake fan 31 and the exhaust fan 32 are fans of the same specifications, the number of the intake fan 31 may be smaller than the number of the exhaust fan 32.

In addition, in the case where the first intake fan 31a and the first exhaust fan 32a are the same number of fans with different specifications, as long as the first intake fan 31a and the first exhaust fan 32a are used Compared to a fan with less air volume.

In addition, in the case where the first intake fan 31a and the first exhaust fan 32a are fans of the same specifications, as long as the number of the first intake fan 31a is less than the number of the first exhaust fan 32a can.

In addition, in the case where the second intake fan 31b and the second exhaust fan 32b are the same number of fans with different specifications, as long as the second intake fan 31b and the second exhaust fan 32b are used Compared to a fan with less air volume.

In addition, in the case where the second intake fan 31b and the second exhaust fan 32b are fans of the same specifications, as long as the number of the second intake fan 31b is less than the number of the second exhaust fan 32b can.

In this case, as long as the curtain 20 is in the closed state, the lower space 13b can be easily brought into the negative pressure state. Therefore, the air pressure of the lower space 13b is lower than the outside, so that the outside air is more efficiently drawn into the lower space 13b through the opened window 25 to further promote ventilation.

In addition, as long as the curtain 20 is in a closed state, the internal space 13 can be easily brought into a negative pressure state. Therefore, the air pressure in the internal space 13 is lower than the outside, so that the outside air is more efficiently drawn into the internal space 13 through the opened window 25, further promoting ventilation.

In addition, by drawing the outside air through the open window 25, an air flow is generated in the housing 10. In addition, the airflow generated in the casing 10 can reduce the humidity around the plant body 50 and promote the evapotranspiration of the plant body 50.

In addition, it is expected that the switching of the operations of the curtain 20, the window 25, the suction fan 31, and the exhaust fan 32 is performed manually by an operator, but it can also be automated. In the case of automation, the agricultural house 1 further includes a control device 90 (refer to FIG. 1) and a plurality of sensors. Each of the plurality of sensors detects the temperature and humidity of the upper space 13a, the lower space 13b, each of the outside air, and the amount of solar radiation in the housing 10, etc., and outputs the detection result to the control device 90. In addition, the control device 90 includes a timer device that counts seasons, time, and the like. The control device 90 controls the actions of the curtain 20, the window 25, the suction fan 31, and the exhaust fan 32 in response to the detection results, seasons, and times of each of the multiple sensors to become suitable for plants Body 50 environment.

In the conventional agricultural house, the airflow of the fan changes greatly due to the opening and closing state of the curtain. Therefore, it is difficult to efficiently ventilate the fan in both the open state and the closed state of the curtain.

In addition, a conventional agricultural house may be configured as follows: an open-close type ventilation skylight is provided on the roof, and high-temperature air near the roof is discharged to the outside. However, due to the opening and closing skylights on the roof, the structure of agricultural houses has become complicated, and it has also become a cause of rain leakage.

On the other hand, in the agricultural house 1 of the present embodiment, as described above, by providing fans above and below the curtain 20 in the closed state, the conventional problems are solved. Specifically, when the curtain 20 is closed, the lower space 13b can be replaced by the second air intake fan 31b and the second air exhaust fan 32b in the lower space 13b where the plant 50 exists Gas to lower the temperature of the lower space 13b. In addition, when the curtain 20 is in the opened state, the first air intake fan 31a, the second air intake fan 31b, and the first air exhaust fan 32a can be passed through the internal space 13 where the plant body 50 exists. The second exhaust fan 32b ventilates the internal space 13 and lowers the temperature of the internal space 13.

Therefore, the agricultural house 1 of the present embodiment can efficiently ventilate in accordance with the space where the plant body 50 exists in both the closed state and the open state of the curtain 20. As a result, the agricultural house 1 can efficiently ventilate regardless of the opening and closing state of the curtain 20 and reduce the internal temperature. In addition, since it is not necessary to provide an open/close type skylight on the roof 100, the structure can be simplified, and rain leakage is less likely to occur.

In addition, the agricultural house 1 is provided with windows 25 on each of the first side 101 and the second side 102 so that the outside air can be efficiently drawn into the interior through the windows 25 to further promote ventilation.

[Modification 1 of Embodiment 1] A modification 1 of Embodiment 1 will be described using FIG. 5.

In the agricultural house 1 according to the first modification of the first embodiment, the curtain 20 is composed of the first curtain 21A and the second curtain 22A. Further, in the case where the curtain 20 is in the closed state, a gap 23 is formed between the front end of the first curtain 21A and the front end of the second curtain 22A. That is, the maximum pull-out amount of each of the first curtain 21A and the second curtain 22A is configured to be smaller than the maximum pull-out amount of each of the first curtain 21 and the second curtain 22, and the gap 23 is along The first direction X1 is formed into a rectangle. Therefore, when the curtain 20 is in the closed state, the upper space 13 a and the lower space 13 b communicate with each other through the gap 23. That is, the curtain 20 in the closed state includes the gap 23 as an opening that communicates the upper space 13a and the lower space 13b.

When the curtain 20 is closed, the high-temperature air in the lower space 13b rises. At this time, the high-temperature air in the lower space 13b rises toward the gap 23 along the first inclined surface 210 and the second inclined surface 220, and moves into the upper space 13a through the gap 23. That is, since the high-temperature air in the lower space 13b moves into the upper space 13a, the temperature rise in the lower space 13b can be further suppressed when the curtain 20 is in the closed state.

Since the high-temperature air in the lower space 13b moves into the upper space 13a, the air pressure in the lower space 13b is lower than the air pressure in the upper space 13a. Then, by opening the window 25 of each of the first side 101 and the second side 102, the outside air is more efficiently drawn into the lower space 13b through the window 25 to further promote ventilation.

Furthermore, the high-temperature air in the lower space 13b moves into the upper space 13a and draws outside air from the window 25, so air flow occurs in the lower space 13b. Therefore, the occurrence of an environment with high humidity around the plant body 50 can be suppressed. Therefore, it is possible to make the plant body 50 less susceptible to diseases and further promote the evapotranspiration of the plant body 50.

In the first modification of the first embodiment, when the curtain 20 is in the closed state, the high-temperature air in the upper space 13a is discharged to the outside by the first exhaust fan 32a. In addition, by the first intake fan 31a, outer air lower in temperature than the upper space 13a is sent to the upper space 13a.

Therefore, the agricultural house 1 according to the first modification of the first embodiment can further efficiently ventilate the lower space 13b where the plant 50 exists when the curtain 20 is closed.

[Modification 2 of Embodiment 1] A modification 2 of Embodiment 1 will be described with reference to FIGS. 6 and 7.

The agricultural house 1 according to the second modification of the first embodiment further includes a blower fan 60 in the lower space 13b of the first modification of the first embodiment. 6 and 7 have three blower fans 60. Three air blowing fans 60 are arranged between the gable wall 103 and the ridge 41 in the second direction X2 to generate airflow from the gable wall 103 to the gable wall 104.

In addition, when the curtain 20 is closed, the blower fan 60 generates an air flow from the mountain wall 103 to the mountain wall 104 in the lower space 13b. As a result, the air in the lower space 13b is agitated, so that the temperature variation in the lower space 13b can be reduced.

In addition, when the curtain 20 is in the open state, the blower fan 60 generates an air flow from the mountain wall 103 toward the mountain wall 104 in the internal space 13. Therefore, the air in the internal space 13 is agitated, so that the temperature variation in the internal space 13 can be reduced.

In addition, the air flow generated by the blower fan 60 can suppress the occurrence of a high-humidity environment around the plant body 50. Therefore, the plant body 50 is less likely to cause disease, and the evapotranspiration of the plant body 50 is further promoted.

In addition, the airflow generated by the blower fan 60 has a relatively low speed, and the specifications of the blower fan 60 are determined in such a manner that the flow velocity of the airflow blowing against the plant 50 is, for example, 1 (m/s) or less.

In addition, in FIGS. 6 and 7, the three air blowing fans 60 are provided so that the air blowing direction is the same, and an air flow is generated from the mountain wall 103 side toward the mountain wall 104 side. However, the agricultural house 1 may also have both a blower fan that generates airflow from the mountain wall surface 103 side toward the mountain wall surface 104 side, and a blower fan that generates airflow from the mountain wall surface 104 side to the mountain wall surface 103 side, It is provided in the lower space 13b. For example, the agricultural house 1 includes two blower fans instead of the three blower fans 60, and is disposed in the center of the housing 10 in the first direction X1. Two air blowing fans are arranged in the second direction X2. Moreover, the two blower fans respectively form airflows in the first direction X1 in mutually opposite directions. Therefore, the air flow that circulates the inside of the housing 10 is formed by the two blower fans. Therefore, the air in the internal space 13 or the lower space 13b is further stirred, and therefore, the temperature deviation in the internal space 13 or the lower space 13b can be further reduced.

In addition, the agricultural house 1 may be provided with three or more blower fans arranged in the center of the housing 10 in the first direction X1 in the second direction X2. In this case, three or more blower fans are mixed with a blower fan that generates airflow in the direction from the mountain wall 103 side to the mountain wall 104 side, and the direction from the mountain wall surface 104 side to the mountain wall 103 side The fan is generated by the airflow. Therefore, an air flow that circulates the inside of the housing 10 is formed by three or more blower fans.

In addition, it is preferable that the airflow in the direction from the gable wall 103 side to the gable wall 104 side and the airflow in the direction from the gable wall 104 side to the gable wall 103 side have the same airflow volume.

[Modification 3 of Embodiment 1] A modification 3 of Embodiment 1 will be described using FIGS. 8 and 9.

The agricultural house 1 of Modification 3 of Embodiment 1 is further provided with a water mist generating device 70 in the lower space 13b of Modification 2 of Embodiment 1.

The water mist generating device 70 includes a water supply pipe 71 that circulates water from a water supply tank or the like via a pump. The water supply pipe 71 is connected with a plurality of nozzles 72 and is configured to spray from the nozzle 72 when water flows to the water supply pipe 71. That is, the water mist generating device 70 ejects water mist that makes the water into fine particles. The mist sprayed from the nozzle 72 falls to the plant body 50. Depending on the shape of the nozzle 72, the sprayed water particles can be made fine and stay in the air.

The water supply pipe 71 is fixed at a predetermined position in the lower space 13b. Therefore, by adjusting the pressure of the water supply to the water supply pipe 71, the mist sprayed from the nozzle 72 can also be sprayed to a desired place.

The water mist system is used to reduce the temperature of the plant body 50 and the surrounding temperature of the plant body 50 by capturing the heat of vaporization. That is, since the vaporization of water mist can be used to cool the plant body 50 and the surroundings of the plant body 50, the interior space 13 can be cooled more efficiently. In addition, the water mist may also be used for the spray of medicine.

The air flow produced by the blower fan 60 functions as follows: diffuses the water mist blown from the nozzle 72 in the housing 10, and spreads the water mist throughout the community of the plant body 50. In addition, the airflow contacts the plant body 50, thereby promoting vaporization of the water mist adhering to the plant body 50. In other words, the air flow produced by the blower fan 60 can increase the speed at which the temperature of the community of the plant body 50 decreases by increasing the speed at which the water mist attached to the plant body 50 vaporizes. That is, the plant body 50 is cooled more efficiently.

[Embodiment 2] In agricultural houses, generally, the amount of heat dissipation from the roof is large. Therefore, in order to prevent heat radiation from the surface of the agricultural house when the temperature is low in winter, a fixed covering member may be used to further cover the underside of the roof. In agricultural houses, when a fixed covering member is used to cover the underside of the roof, a heat insulation layer is formed between the roof and the covering member to reduce the heat dissipation from the roof and improve the insulation of the agricultural house Thermal performance. However, when a fixed covering structure is used to cover the lower part of the roof, when the temperature is high in summer, high-temperature air tends to stay above the agricultural house.

Therefore, this embodiment describes a configuration in which high-temperature air does not easily stay above the agricultural house even when the fixed covering member is used to cover the lower part of the roof. In addition, the fixed covering member does not have an opening and closing mechanism like the curtain 20, but always covers the underside of the roof.

10A and 10B show the structure of the agricultural house 1A of this embodiment. The agricultural house 1A of the present embodiment is further provided with the fixed covering member 80 in the agricultural house 1 of the first embodiment. 10A and 10B show the configuration in which the covering member 80 is added to the first embodiment (refer to FIGS. 2A and 2B ). In addition, in the agricultural house 1A, the same configuration as the agricultural house 1 of the first embodiment is denoted by the same symbol, and the description is omitted.

The covering member 80 is formed using a light-transmitting member. As the covering member 80, a synthetic resin film having translucency (preferably transparent) is used. In addition, the synthetic resin film used for the covering member 80 is selected from polyvinyl chloride, polyolefin, fluororesin, and the like. In addition, the covering member 80 may be a glass having translucency.

The covering member 80 is formed in a rectangular plate shape, and is provided above the curtain 20 in the closed state in the housing 10 so as to face the lower bottom surface of the roof 100. Among the inner surface of the housing 10, one end of the covering member 80 in the second direction X2 is fixed to the upper end (or upper end) of the first side surface 101 where the fixed end of the first curtain 21 is arranged along the first direction X1 nearby). In the inner surface of the housing 10, the other end of the covering member 80 in the second direction X2 is fixed along the first direction X1 to the upper end of the second side surface 102 where the fixed end of the second curtain 22 is arranged ( Or near the upper end). Further, the covering member 80 extends diagonally upward from one end in the second direction X2 toward the predetermined position directly under the vertex of the roof 100, and from the other end in the second direction X2 toward the predetermined position directly under the vertex of the roof 100 And extend diagonally upward. That is, the covering member 80 is formed into a mountain shape whose apex extends in a straight line along the first direction X1.

For the supporting member that supports the covering member 80, a metal frame such as aluminum, stainless steel, iron, or a resin frame is used. However, the support member may not be a member with high rigidity such as a metal frame or a resin frame. As long as the supporting member can be supported so as not to lower the covering member 80 excessively downward, a soft material such as rope, metal wire, resin wire, or the like can also be used.

The above-mentioned covering member 80 is formed into a shape like a gable roof whose apex extends in the first direction X1, and is arranged between the roof 100 and the curtain 20 in a closed state. That is, the covering member 80 has the roof 100 above, and the covering member 80 has the closed curtain 20 below. In the internal space 13 of the housing 10, the upper space 13a, which is a space above the curtain 20 in the closed state, is divided into a first upper space 131 and a second upper space 132 (see FIGS. 10A and 10B ). The first upper space 131 is a space above the covering member 80, and the second upper space 132 is a space below the covering member 80.

In addition, the agricultural house 1A is provided with a fixed covering member 80 below the roof 100, so that the first upper space 131 becomes a heat insulating layer, reducing the amount of heat radiated from the roof 100, and improving the heat insulating performance. Therefore, the agricultural house 1A can suppress the decrease in the temperature around the farm 40 even if the air in the internal space 13 is not heated by a heater or the like during winter or summer night. Furthermore, even in the case where the air in the internal space 13 is heated by a heater or the like, it is possible to reduce the operating cost of the heater or the like (fuel cost, electricity cost, etc.).

Furthermore, as shown in FIG. 10A, three first air intake fans 31a are arranged on the first gable wall 103 so as to face the upper space 13a in the second direction X2. Among the three first intake fans 31a, a central first intake fan 31a is provided on the first gable wall 103 so as to face the first upper space 131. Among the three first suction fans 31a, two first suction fans 31a on both sides are provided on the first gable wall 103 so as to face the second upper space 132. That is, the center first intake fan 31a is arranged above the covering member 80, and the outside air is sent to the first upper space 131. In addition, the first air intake fans 31 a on both sides are arranged below the covering member 80 to send outside air into the second upper space 132.

As shown in FIG. 10B, three first exhaust fans 32a are arranged on the second gable wall 104 so as to face the upper space 13a in the second direction X2. Among the three first exhaust fans 32a, a central first exhaust fan 32a is provided on the second gable wall 104 so as to face the first upper space 131. Among the three first exhaust fans 32a, two first exhaust fans 32a on both sides are provided on the second gable wall 104 so as to face the second upper space 132. That is, the center first exhaust fan 32a is arranged above the covering member 80, and the air in the first upper space 131 is discharged to the outside. In addition, the first exhaust fans 32a on both sides are arranged below the covering member 80, and the air in the second upper space 132 is discharged to the outside.

In addition, the size of the first suction fan 31a shown in FIG. 10A and the size of the first suction fan 31a shown in FIG. 2A are different from each other, but the size of the first suction fan 31a in the figure does not reflect the actual size. Also, the size of the first exhaust fan 32a shown in FIG. 10B and the size of the first exhaust fan 32a shown in FIG. 2B are different from each other, but the size of the first exhaust fan 32a in the figure does not reflect the actual size. That is to say, the size of the fan in the figure is appropriately set according to each figure for explanation.

In addition, during summer daytime, the first intake fan 31a, the second intake fan 31b, the first exhaust fan 32a, and the second exhaust fan 32b are usually operated (rotated) and the first side surface 101. The window 25 (see FIG. 1) of each of the second side faces 102 is opened.

Furthermore, during the summer daytime, sunlight may enter the housing 10 and the temperature in the internal space 13 may rise above a predetermined temperature. In this case, the curtain 20 is closed, so that the amount of sunlight directly irradiated to the lower space 13b where the plant body 50 exists is reduced. Furthermore, the high-temperature air in the lower space 13b is discharged to the outside by the second exhaust fan 32b. In addition, by the second air intake fan 31b, outside air lower in temperature than the lower space 13b is sent to the lower space 13b. Furthermore, by opening the window 25 (refer to FIG. 1 ), the outside air is efficiently sucked into the lower space 13 b to further promote ventilation.

In addition, the central first exhaust fan 32a exhausts the high-temperature air in the first upper space 131 formed between the roof 100 and the covering member 80 to the outside. In addition, the central first suction fan 31a sends the outer air having a lower temperature than the first upper space 131 to the first upper space 131. Therefore, high-temperature air is less likely to stay in the first upper space 131.

In addition, the first exhaust fans 32a on both sides exhaust the high-temperature air in the second upper space 132 formed between the curtain 20 and the covering member 80 to the outside. In addition, the first air intake fans 31 a on both sides send outer air lower in temperature than the second upper space 132 to the second upper space 132. Therefore, high-temperature air is less likely to stay in the second upper space 132.

In addition, in the agricultural house 1A, at least one first suction fan 31a may face the first upper space 131 and at least one first suction fan 31a may face the second upper space 132. In addition, in the agricultural house 1A, at least one first exhaust fan 32a may face the first upper space 131 and at least one first exhaust fan 32a may face the second upper space 132. That is, if at least one first suction fan 31a and at least one first exhaust fan 32a are provided facing the first upper space 131 in such a manner that the first upper space 131 can be sucked and exhausted can. In addition, as long as the suction and exhaust of the second upper space 132 can be performed, at least one first suction fan 31a and at least one first exhaust fan 32a may be provided facing the second upper space 132 .

As described above, the agricultural house 1A is provided with a fixed covering member 80 under the roof 100 to reduce the amount of heat radiated from the roof 100 and improve the heat insulation performance. Furthermore, in the case where the curtain 20 is in the closed state, high-temperature air is less likely to stay in the first upper space 131 formed between the roof 100 and the covering member 80, and the first upper space formed between the curtain 20 and the covering member 80 Two upper space 132.

In addition, by making the curtain 20 open, the second upper space 132 and the lower space 13b in the housing 10 communicate with each other, thereby increasing the amount of sunlight directly irradiating the plant body 50. In the agricultural house 1A, the internal space 13 in the state where the curtain 20 is opened is divided into a first upper space 131, a space composed of a second upper space 132, and a lower space 13b. In this case, the high-temperature air in the internal space 13 can be discharged to the outside by the first exhaust fan 32a and the second exhaust fan 32b, and by the first intake fan 31a and the second intake air The fan 31b sends outside air into the internal space 13.

Therefore, the agricultural house 1A improves the heat insulation performance by the fixed covering member 80, and even if the curtain 20 is in either the closed state or the open state, the high-temperature air is less likely to stay above the internal space 13.

[Modification 1 of Embodiment 2] A modification 1 of Embodiment 2 will be described with reference to FIGS. 11A and 11B.

As shown in FIG. 11A, the agricultural house 1A according to Modification 1 of Embodiment 2 is provided with two first air intake fans 31a facing the first upper space 131 and the second upper space 132, respectively. The first mountain wall 103. Furthermore, as shown in FIG. 11B, in the agricultural house 1A according to the first modification of the second embodiment, the two first exhaust fans 32a face the first upper space 131 and the second upper space 132, Set on the second mountain wall 104 respectively.

In addition, the size of the first suction fan 31a shown in FIG. 11A and the size of the first suction fan 31a shown in FIG. 2A are different from each other, but the size of the first suction fan 31a in the figure is not reflected Actual size. Also, the size of the first exhaust fan 32a shown in FIG. 11B and the size of the first exhaust fan 32a shown in FIG. 2B are different from each other, but the size of the first exhaust fan 32a in the figure is not reflected Actual size. That is to say, the size of the fan in the figure is appropriately set according to each figure for explanation.

The suction port of the first suction fan 31a faces the end of the covering member 80 on the first gable wall 103 side. That is, the end of the covering member 80 on the side of the first gable wall 103 traverses the air inlet of the first air intake fan 31a. Therefore, the first air intake fan 31 a can send outside air to both the upper and lower sides of the covering member 80.

The exhaust port of the first exhaust fan 32a faces the end of the covering member 80 on the second gable wall 104 side. That is, the end of the covering member 80 on the second gable wall 104 side traverses the exhaust port of the first exhaust fan 32a. Therefore, the first exhaust fan 32a can exhaust the air above and below the covering member 80 to the outside.

In summer daytime, the first intake fan 31a, the second intake fan 31b, the first exhaust fan 32a, and the second exhaust fan 32b are usually operated (rotated) and the first side 101 1. The window 25 (see FIG. 1) of each of the second side faces 102 is opened.

When the curtain 20 is closed in the summer day, the first exhaust fan 32a exhausts the high-temperature air in the first upper space 131 and the second upper space 132 to the outside. In addition, the first air intake fan 31a sends outside air having a temperature lower than that in the first upper space 131 and the second upper space 132 to the first upper space 131 and the second upper space 132. Therefore, high-temperature air is less likely to stay in the first upper space 131 and the second upper space 132.

As described above, in the agricultural house 1A according to Modification 1 of Embodiment 2, the first air intake fan 31a sends outside air to both the first upper space 131 and the second upper space 132. In addition, in the agricultural house 1A according to the first modification of the second embodiment, the first exhaust fan 32a exhausts air from both the first upper space 131 and the second upper space 132 to the outside.

Therefore, one first suction fan 31a sucks in both the first upper space 131 and the second upper space 132, so the number of first suction fans 31a can be further reduced, and the first suction can be further reduced. The installation space of the air fan 31a. In addition, one first exhaust fan 32a exhausts both the first upper space 131 and the second upper space 132, so the number of first exhaust fans 32a can be further reduced, and the first row can be further reduced. The installation space of the air fan 32a.

Moreover, by opening the curtain 20, the second upper space 132 and the lower space 13b in the housing 10 can communicate with each other, and the amount of sunlight directly irradiating the plant body 50 can be increased. In this case, the high-temperature air in the internal space 13 can also be discharged to the outside by the first exhaust fan 32a and the second exhaust fan 32b, and by the first intake fan 31a and the second intake air The external air is sent into the internal space 13 by the fan 31b.

Therefore, the agricultural house 1A is improved in heat insulation by the fixed covering member 80, and even if the curtain 20 is in either the closed state or the open state, high-temperature air is less likely to stay above the internal space 13.

In addition, as long as the agricultural house 1A shown in FIGS. 11A and 11B includes at least one first intake fan 31a, at least one second intake fan 31b, at least one first exhaust fan 32a, and at least one The second exhaust fan 32b is sufficient.

In addition, the agricultural house 1A may be provided with a plurality of covering members 80 at intervals under the roof 100 in the vertical direction. In this case, each interval of the plurality of covering members 80 also forms a heat insulation layer, so that the heat insulation performance of the agricultural house 1A can be further improved. In addition, the agricultural house 1A is further provided with: a fan for exhaust to discharge high-temperature air in each space surrounded by a plurality of covering members 80 to the outside; and a fan for suction to send outside air to Each space surrounded by a plurality of covering members 80 makes it difficult for high-temperature air to stay above the internal space 13.

In addition, the covering member 80 may be a shape that extends horizontally along the first direction X1, and the shape is not limited to a specific shape.

In addition, when the covering member 80 is added to each of the configurations of the first, second, and third modifications of the first embodiment, the same effects as described above can be obtained.

As described above, the agricultural house 1 or 1A according to the first aspect of the embodiment includes the housing 10, the plural intake fans 31, the plural exhaust fans 32, and the curtain 20. The housing 10 has a first mountain wall 103 and a second mountain wall 104 facing each other, and covers the roof 100 with a covering body 12 (translucent member). A plurality of suction fans 31 are provided on the first mountain wall 103 to send outside air into the housing 10. A plurality of exhaust fans 32 are provided on the second gable wall 104 to discharge the air in the casing 10 to the outside of the casing 10. The curtain 20 is configured to face the roof 100 in the housing 10. The curtain 20 is configured to be deformable between a closed state in which light incident through the roof 100 into the housing 10 is reduced and an open state in which light incident through the roof 100 into the housing 10 is not reduced. . Of the plural suction fans 31, one or more first suction fans 31a are arranged above the closed curtain 20, and one or more second suction fans 31b are arranged on the closed curtain Curtain 20 is further down. Of the plural exhaust fans 32, one or more first exhaust fans 32a are arranged above the closed curtain 20, and one or more second exhaust fans 32b are arranged on the closed curtain 20 lower.

In the agricultural house 1 or 1A described above, when the curtain 20 is in the closed state, the second air intake fan 31b and the second air exhaust fan 32b in the lower space 13b where the plant 50 exists can be used The lower space 13b is ventilated to lower the temperature of the lower space 13b. In addition, when the curtain 20 is in the opened state, the first air intake fan 31a, the second air intake fan 31b, the first air exhaust fan 32a, and the The second exhaust fan 32b ventilates the internal space 13 and lowers the temperature of the internal space 13. Therefore, the agricultural house 1 or 1A of the present embodiment can efficiently ventilate in accordance with the space where the plant body 50 exists in both the closed state and the open state of the curtain 20.

Therefore, regardless of the opening and closing state of the curtain 20, the agricultural house 1 or 1A can efficiently ventilate and lower the internal temperature. In addition, it is not necessary to provide an open/close type skylight on the roof 100, so that the structure can be simplified.

In addition, in the second aspect of the embodiment, the agricultural house 1 or 1A is preferably in the first aspect, in which the curtain 20 is provided with an opening (gap 23), and in the closed state, the lower space of the internal space 13 of the housing 10 13b communicates with the upper space 13a.

In this case, the high-temperature air in the lower space 13b moves into the upper space 13a through the gap 23, so that the temperature rise in the lower space 13b can be further suppressed when the curtain 20 is in the closed state. Since the high-temperature air in the lower space 13b moves into the upper space 13a, the air pressure in the lower space 13b is lower than the air pressure in the upper space 13a. Therefore, the outside air is drawn into the lower space 13b more efficiently, and ventilation is further promoted. In addition, the air flow can be generated in the housing 10, and the humidity around the plant body 50 can be reduced. In addition, by generating airflow in the housing 10, it is possible to suppress the appearance of a high-humidity environment around the plant body 50. Therefore, it is possible to make the plant body 50 less susceptible to diseases and further promote the evapotranspiration of the plant body 50.

Moreover, the agricultural house 1 or 1A of the third aspect of the embodiment is in the first or second aspect such that the housing 10 is provided with the first mountain wall 103 and the second mountain wall 104 crossing each other facing each other The first side 101 and the second side 102. Moreover, the curtain 20 is preferably composed of a first curtain 21A and a second curtain 22A that are opposite to each other. In the open state, the first curtain 21A is close to the first side 101 side. In the closed state, the first curtain 21A is pulled diagonally upward toward the center of the housing 10, and the lower bottom surface of the first curtain 21A is formed to change from the first side 101 toward the center of the housing 10高之第一斜面21。 The first inclined surface 21. In the open state, the second curtain 22A is close to the second side 102 side. Further, in the closed state, the second curtain 22A is pulled diagonally upward toward the center of the housing 10, and the lower bottom surface of the second curtain 22A is formed to increase from the second side surface 102 toward the center of the housing 10 Second inclined surface 220. In the closed state, a gap 23 is formed as an opening between the first curtain 21A and the second curtain 22A.

In this case, the high-temperature air in the lower space 13b rises toward the gap 23 along the first inclined surface 210 and the second inclined surface 220, and moves into the upper space 13a through the gap 23. That is, since the high-temperature air in the lower space 13b moves into the upper space 13a, the temperature rise in the lower space 13b can be further suppressed when the curtain 20 is in the closed state.

Since the high-temperature air in the lower space 13b moves into the upper space 13a, the air pressure in the lower space 13b is lower than the air pressure in the upper space 13a. Therefore, the outside air is drawn into the lower space 13b more efficiently, and ventilation is further promoted.

In addition, the agricultural house 1 or 1A in the fourth aspect of the embodiment is preferably in any one of the first to third aspects such that the total amount of air volume sent from the plural suction fans 31 into the housing 10 is less than The total amount of air discharged by the plural exhaust fans 32 to the outside of the housing 10.

In this case, the inside of the housing 10 can be easily brought into a negative pressure state. Thus, the outside air is drawn into the housing 10 more efficiently, and ventilation is further promoted. In addition, the air flow can be generated in the housing 10, and the humidity around the plant body 50 can be reduced. In addition, by generating airflow in the housing 10, it is possible to suppress the appearance of a high-humidity environment around the plant body 50. Therefore, the disease of the plant body 50 is less likely to occur, and the evapotranspiration of the plant body 50 is further promoted.

The agricultural house 1 or 1A in the fifth aspect of the embodiment is preferably any one of the first to fourth aspects and further includes a blower fan 60 for generating airflow in the housing 10.

In this case, the air in the housing 10 is stirred, so that the temperature deviation in the housing 10 can be reduced. In addition, the air flow is generated in the housing 10, and the humidity around the plant body 50 can be reduced. In addition, by generating airflow in the housing 10, it is possible to suppress the appearance of a high-humidity environment around the plant body 50. Therefore, it is possible to make the plant body 50 less susceptible to diseases and further promote the evapotranspiration of the plant body 50.

In addition, the agricultural house 1 or 1A in the sixth aspect of the embodiment is preferably provided in any one of the first to fifth aspects and further includes a water mist generating device 70 that generates water mist inside the housing 10.

In this case, the latent heat generated by the evaporation of water mist can be used to cool the inside of the housing 10, so the inside of the housing 10 can be cooled more efficiently.

In addition, the agricultural house 1A in the seventh aspect of the embodiment is preferably provided in any one of the first to sixth aspects. The covering member 80 is provided in the housing 10 so as to face the lower bottom surface of the roof 100 It is provided above the curtain 20 in the closed state.

In this case, because the covering member 80 covers the underside of the roof 100, a heat insulation layer is formed under the roof 100 to reduce heat radiation from the roof 100 and improve the heat insulation performance of the agricultural house 1A.

In addition, the eighth aspect of the embodiment of the agricultural house 1A is preferably provided with a plurality of first suction fans 31a in the seventh aspect. It is preferable to arrange a part of the plurality of first suction fans 31a above the covering member 80, and arrange the rest of the plurality of first suction fans 31a below the covering member 80. In addition, the agricultural house 1A includes a plurality of first exhaust fans 32a. It is preferable to arrange a part of the plurality of first exhaust fans 32a above the covering member 80, and arrange the rest of the plurality of first exhaust fans 32a below the covering member 80.

In this case, even if the curtain 20 is in either the closed state or the open state, the high-temperature air is unlikely to stay above the internal space 13.

In the ninth aspect of the embodiment, the agricultural house 1A is preferably in the seventh aspect in which the first air intake fan 31a is arranged so as to face both above and below the covering member 80, and the outside Air is sent to both the upper and lower parts of the covering member 80.

In this case, the number of the first air intake fan 31a can be further reduced, and the installation space of the first air intake fan 31a can be further reduced.

Furthermore, in the tenth aspect of the embodiment, the agricultural house 1A is preferably in the ninth aspect, and the first exhaust fan 32a is arranged to face both above and below the covering member 80, and The air above and below the covering member 80 is discharged out of the housing 10.

In this case, the number of the first exhaust fan 32a can be further reduced, and the installation space of the first exhaust fan 32a can be further reduced.

In addition, in the agricultural house 1A according to the eleventh aspect of the embodiment, the covering member 80 is preferably a translucent member in any of the seventh to tenth aspects.

In this case, the covering member 80 does not dim (or block) light, so the amount of light incident into the housing 10 can be adjusted by the curtain 20.

The agricultural house 1 or 1A according to the twelfth aspect of the embodiment includes a housing 10, plural intake fans 31, plural exhaust fans 32, and a curtain 20. The casing 10 includes a first mountain wall 103 and a second mountain wall 104 and a roof 100 facing each other. A plurality of suction fans 31 are provided on the first mountain wall 103 to send outside air into the housing 10. A plurality of exhaust fans 32 are provided on the second gable wall 104 to discharge the air in the housing 10 to the outside of the housing 10. The curtain 20 is arranged in the casing 10. The curtain 20 is configured to be deformable between the following states: an open state, which is pulled out in the housing 10; and a closed state, which is folded in the housing 10. The closed curtain 20 divides the interior of the housing 10 into an upper space 13a and a lower space 13b below the upper space 13a, and allows ventilation between the upper space 13a and the lower space 13b, and at least light incident from the roof 100 Perform dimming.

In the case where the above-mentioned agricultural house 1 or 1A is in the closed state of the curtain 20, the upper space 13a and the lower space 13b are exchanged by the curtain 20 that allows ventilation between the upper space 13a and the lower space 13b gas. Therefore, the agricultural house 1 or 1A can be efficiently ventilated in both the open state and the closed state of the curtain 20.

In addition, in the thirteenth aspect of the embodiment, the agricultural house 1 or 1A is preferably in the twelfth aspect, and the curtain 20 includes at least a first curtain 21A and a second curtain 22A.

Furthermore, the fourteenth aspect of the embodiment of the agricultural house 1 or 1A is preferably in the twelfth or thirteenth aspect, and includes: a window 25 provided on the side of the housing 10 (the first side 101 and the second Side 102).

In addition, in the fifteenth aspect of the embodiment, the agricultural house 1 or 1A is preferably in the twelfth or thirteenth aspect, and includes: a control device 90, a control curtain 20, a plurality of suction fans 31 and At least one of the plural exhaust fans 32.

In addition, the above-mentioned embodiment and modification are examples of the present invention. Therefore, the embodiments and modifications of the present invention are not limited to the above-mentioned configurations. Even if it is other than the above-mentioned configurations, as long as it does not deviate from the scope of the technical idea of the embodiments and modifications, various changes can be made according to the design and the like.

1. 1A‧‧‧House for agriculture 10‧‧‧Enclosure 11‧‧‧Frame 12‧‧‧Cover (translucent member) 13‧‧‧Inner space 13b‧‧‧Lower space 13a‧‧‧Upper part Space 20‧‧‧ curtain 21, 21A‧‧‧ first curtain 22, 22A‧‧‧ second curtain 23‧‧‧ gap (opening) 25‧‧‧window 31‧‧‧ suction fan 31a‧ ‧‧ First suction fan 31b‧‧‧ Second suction fan 32‧‧‧Exhaust fan 32a‧‧‧ First exhaust fan 32b‧‧‧Second exhaust fan 40‧‧‧ Farm 41 ‧ ‧ ridge 50 ‧ ‧ ‧ plant body 60 ‧ ‧ ‧ air supply fan 70 ‧ ‧ ‧ water mist generating device 71 ‧ ‧ ‧ water supply pipe 72 ‧ ‧ nozzle 80 ‧ ‧ ‧ covering member 90 ‧ ‧ ‧ control Device 100‧‧‧ Roof 101‧‧‧First side 102‧‧‧Second side 103‧‧‧First mountain wall 104‧‧‧Second mountain wall 111‧‧‧Pillar part 112‧‧‧Connecting part 131‧‧‧ first upper space 132‧‧‧ second upper space 210‧‧‧ first inclined surface 220‧‧‧‧ second inclined surface

FIG. 1 is a schematic perspective view showing the structure of an agricultural house in Embodiment 1. FIG. 2A is a vertical sectional view showing the suction side of an agricultural house when the curtain of the first embodiment is closed. FIG. 2B shows another cross-sectional view in the vertical direction of the exhaust side of the agricultural house in the closed state of the curtain. 3A is a vertical cross-sectional view showing the suction side of an agricultural house when the curtain of Embodiment 1 is closed. 3B is another cross-sectional view showing the vertical direction of the exhaust side of the agricultural house when the curtain of the above is opened. 4A is a horizontal cross-sectional view of an agricultural house in the closed state of the curtain of Embodiment 1. FIG. Fig. 4B is a horizontal sectional view of the agricultural house when the curtain is opened. 5 is a vertical cross-sectional view showing the suction side of an agricultural house according to Modification 1 of Embodiment 1. FIG. 6 is a horizontal cross-sectional view of an agricultural house according to Modification 2 of Embodiment 1. FIG. 7 is a vertical cross-sectional view showing the suction side of an agricultural house in Modification 2 of Embodiment 1. FIG. 8 is a horizontal cross-sectional view of an agricultural house according to Modification 3 of Embodiment 1. FIG. 9 is a vertical cross-sectional view of the suction side of an agricultural house according to Modification 3 of Embodiment 1. FIG. 10A and 10B show the structure of the agricultural house according to the second embodiment. 10A is a vertical cross-sectional view showing the suction side of an agricultural house when the curtain of the second embodiment is closed. 10B is another cross-sectional view showing the vertical direction of the exhaust side of the agricultural house in the closed state of the above curtain. 11A is a vertical cross-sectional view showing the suction side of the agricultural house in the closed state of the curtain in Modification 1 of Embodiment 2. FIG. FIG. 11B is another cross-sectional view showing the vertical direction of the agricultural house on the exhaust side when the curtain of the first modification is closed.

1‧‧‧House for agriculture

10‧‧‧Housing

11‧‧‧Frame

12‧‧‧ Cover (translucent member)

13‧‧‧Internal space

13b‧‧‧lower space

13a‧‧‧Upper space

20‧‧‧ curtain

21‧‧‧The first curtain

22‧‧‧ second curtain

25‧‧‧window

31‧‧‧Suction fan

31a‧‧‧The first suction fan

31b‧‧‧Second suction fan

32‧‧‧Exhaust fan

32a‧‧‧The first exhaust fan

32b‧‧‧Second exhaust fan

40‧‧‧Farm

41‧‧‧mu

90‧‧‧Control device

100‧‧‧roof

101‧‧‧The first side

102‧‧‧Second side

103‧‧‧The first mountain wall

104‧‧‧Second Mountain Wall

111‧‧‧ Pillar Department

112‧‧‧Link

210‧‧‧The first inclined surface

220‧‧‧Second inclined surface

Claims (3)

An agricultural house, comprising: an outer shell including a first mountain wall surface and a second mountain wall surface and a roof facing each other; a plurality of suction fans are provided on the first mountain wall surface to send outside air into Into the housing; a plurality of exhaust fans are provided on the second mountain wall, and the air in the housing is exhausted out of the housing; curtains are disposed in the housing; and windows are disposed in the housing The side of the curtain; and the curtain is configured to be deformable between the following states: closed state, pulled out in the case; and open state, folded in the case; and the closed state of the curtain will be inside the case Divided into an upper space and a lower space below the upper space, and allowing ventilation between the upper space and the lower space, and at least dimming the light incident from the roof, the number of the plurality of suction fans is small The number of exhaust fans in the plural. For an agricultural house as claimed in item 1 of the patent scope, wherein the curtain includes at least a first curtain and a second curtain. For example, the agricultural house according to item 1 or 2 of the patent application scope further includes: a control device that controls at least one of the curtain, the plural suction fans, and the plural exhaust fans.

Images