South-north shared sunlight greenhouse

Abstract

The utility model discloses a south-north shared sunlight greenhouse which extends in the east-west direction, and the top of the greenhouse is made of transparent materials. The greenhouse is characterized in that isolation wall columns extending in the east-west direction are arranged in the greenhouse, and transparent wall bodies are arranged between the isolation wall columns; the greenhouse is divided into a south room and a north room by the transparent wall body. According to the south-north shared sunlight greenhouse, the greenhouse is divided into the south room and the north room; by means of the heat insulation effect of the north chamber, an environment suitable for growth of plants in the south can be provided in winter, and tropical fruits and crops are cultivated in the north.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of agricultural production facilities especially a north-south shared sunlight greenhouse. BACKGROUND

[0002] With the improvement of people's living standards, the fruits produced in the tropics have been accepted by Chinese people; the tropical fruits imported from Southeast Asia to the north need to be transported over a long distance, and the cost is relatively high. The air temperature in the north of China is relatively low, and at present, only the growth environment of tropical fruits can be provided in summer. SUMMARY

[0003] The utility model aims at providing a north-south shared sunlight greenhouse which has novel and unique structure, is convenient to use, and can provide the growth environment of tropical fruits all the year round; the specific technical scheme is as follows:

[0004] A north-south shared sunlight greenhouse, the greenhouse extends along the east-west direction, and the top of the greenhouse is made of transparent material; isolation wall columns extending along the east-west direction are arranged in the greenhouse, and transparent walls are arranged between the isolation wall columns; the transparent walls divide the greenhouse into a south room and a north room.

[0005] Further, the area of the south room is greater than 2 times the area of the north room.

[0006] Further, the transparent walls are made of transparent plastic cloth.

[0007] Further, the north side inner wall of the north room is provided with a light-reflecting plate.

[0008] Further, the light-reflecting plate has a louver structure, and the rotating shafts of the light-reflecting strips constituting the louver structure are in the vertical direction.

[0009] Further, the light-reflecting strips are driven by a driving mechanism.

[0010] The north-south shared sunlight greenhouse can provide an environment suitable for the growth of southern plants in winter by isolating the greenhouse into a south room and a north room, and can cultivate tropical fruits and crops in the north by utilizing the temperature insulation effect of the north room. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic view of the north-south shared sunlight greenhouse;

[0012] Figure 2 It is a partial structural schematic view of a light-reflecting plate assembly;

[0013] Figure 3 It is a structural schematic view of the north-south shared sunlight greenhouse; Figure 2

[0014] Figure 4 It is a schematic view of the circuit principle of an intelligent control system.​

[0015] In the diagram: 1. Greenhouse; 2. Isolation wall pillar; 3. Transparent panel; 4. Reflector; 401. Rotating shaft; 501. Frame; 502. Synchronous belt; 503. Lower gear; 504. Upper gear; 505. Isolation pad. Detailed Implementation

[0016] The present invention will be described more fully below with reference to embodiments. The present invention may be embodied in many different forms and should not be construed as being limited to the exemplary embodiments described herein.

[0017] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” may be used herein to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “down” of another element or feature would be positioned “up” of that other element or feature. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0018] like Figure 1 As shown, in this embodiment, the shared north-south greenhouse 1 extends east-west and has a shallow depth in the north-south direction, allowing the space inside the greenhouse to receive more sunlight. At least the top of the greenhouse is made of transparent material; except for the north wall, the walls on other sides can also be made of transparent material to facilitate greater sunlight reception.

[0019] The greenhouse is equipped with east-west oriented partition wall columns 2, with transparent panels 3 forming a transparent wall between the columns. This transparent wall divides the greenhouse into a south chamber and a north chamber. Due to better sunlight, the south chamber is warmer than the north chamber. In summer, both the south and north chambers are warm, requiring ventilation to dissipate heat, but this has little impact on tropical crops. In autumn, winter, and spring, the north chamber is too cold to meet the needs of tropical crops. Using heating equipment would obviously increase planting costs. Therefore, the north chamber can be used only for crops that do not require high temperatures, or not for crops in winter. Serving as an insulation space, it helps the south chamber achieve a higher temperature. With little or no heating, sunlight during the day and insulation blankets at night can be used to maintain warmth, meeting the requirements for growing tropical crops even in winter. Of course, insulation material can be added to the outside of the north wall of the north chamber to further improve insulation.

[0020] Therefore, the area of the south chamber can be set to be greater than 2 times the area of the north chamber; the area of planting tropical crops is increased as much as possible; of course, as a heat preservation space, the north chamber should not be too narrow to ensure the temperature of the south chamber.

[0021] The transparent wall in the embodiment can be made of a glass plate, an organic glass plate, or a transparent plastic cloth.

[0022] In order to provide stronger sunlight, the inner wall of the north side of the north chamber is provided with a reflecting plate; the sunlight irradiated on most of the north side inner wall is reflected to the middle transparent wall through the reflecting plate, which not only increases the light intensity of the plants and the energy for photosynthesis, but also helps to provide the temperature of the south chamber.

[0023] The reflecting plate can also be provided in a louver structure, and the rotating shaft of the reflecting strip 4 constituting the louver structure is in a vertical direction. By rotating the reflecting strip 4, the incident sunlight is converted into reflected light in the south direction, that is, perpendicular to the transparent wall; so that as much solar energy as possible is utilized.

[0024] The reflecting strip is driven by a driving mechanism and can be adjusted manually. For example: adjust once every half an hour, so that the angle of the radiation light and the transparent wall is basically greater than 80 degrees; that is, the direction of the reflected light is basically in the south direction. An intelligent control unit can also be provided to control the deflection angle of the sunlight at any time.

[0025] The driving mechanism can be a chain and sprocket mechanism, a gear and rack mechanism, or other existing swing mechanisms. As shown in Figure 2 , Figure 3 Each reflecting strip 4 is fixedly connected to a lower gear 503 on the rotating shaft 401 of each reflecting strip 4; the lower gear 503 is engaged with a synchronous belt 502 connected to the rotating shaft of the motor (not shown in the figure); and the reflecting strip 4 is driven to rotate by the motor.

[0026] All reflecting strips can be driven by a synchronous belt; in order to be more flexible in configuration, all reflecting strips can be grouped; each group of reflecting strips is installed on a frame 501; the upper gears 504 for transmitting power between groups are provided on the reflecting strips at both ends of the frame; and the cascading of the driving power is realized through the upper gears 504. In this way, when the synchronous belt is seriously worn locally, the synchronous belt to be replaced is relatively short within the group or between groups; and maintenance is facilitated.

[0027] In order to avoid direct contact between the synchronous belts of the upper gears and the lower gears, an isolation gasket 505 is further provided between the upper gears and the lower gears.

[0028] As shown in Figure 4As shown, a single-chip microcomputer, DSP or PLC, etc. can be used as the intelligent control unit to control the driver to drive the motor to rotate forward or reversely, and drive the reflective strip to rotate to the target angle. The sunlight irradiation angle fixed by the latitude and longitude is relatively stable, and the target angles in different months or even different days can be stored in the memory of the intelligent control unit. Only the calendar function needs to be set in the intelligent control unit to determine the current target angle value according to the date and time.

[0029] The motor can be a stepper motor, which is conducive to reducing the cost of the system. A servo motor can also be used, and a rotary encoder is used as a reflective angle sensor.

[0030] When the stepper motor is used, a micro switch can be used as an initial position sensor of the reflective angle. When the system is initially powered on, the reflective sheet is driven to rotate, and when the side edge of the reflective sheet triggers the micro switch installed on the frame, the initial zero angle of the reflective sheet is recorded. Then, the required step number is calculated according to the difference between the target angle, and the driving pulse is outputted to make the reflective sheet rotate to the target angle.

[0031] The magnet can be fixed on the side edge of the reflective sheet, and when the magnet approaches the Hall switch device installed on the frame, the initial zero angle signal of the reflective sheet can also be obtained.

[0032] The photoelectric switch can also be used as an initial position sensor of the reflective angle. When the reflective sheet is closest to the east wall of the frame, the infrared light emitted by the photoelectric switch is reflected by the side edge of the reflective sheet, and the photoelectric switch receives the reflected light with sufficient intensity to obtain the initial zero angle signal of the reflective sheet.

[0033] The illuminance sensor can also be set to detect the illuminance of sunlight. When the illuminance is low, it means that the light is scattered light, and the rotation of the reflective sheet has little effect, so the motor can be prohibited from rotating, which is conducive to reducing energy consumption. The illuminance sensor can be installed outside or inside the greenhouse, as long as it can be irradiated by sunlight.

[0034] The south room and the north room of the greenhouse can be opened on the east side or the west side to avoid discomfort caused by reflected light when entering the greenhouse from the south door. A human body infrared sensor can also be set at the door, and when the human body infrared sensor detects that a person enters the greenhouse, the reflective sheet is rotated to reflect the east-west direction by the intelligent control unit to avoid discomfort caused by reflected light.

[0035] In the greenhouse of the embodiment, the north room and the south room can both reach the growth temperature of tropical plants in summer, the south room can reach the growth temperature of tropical plants in winter, and the north room only serves as a heat preservation function.

[0036] The above examples are only used to illustrate the present application, in addition to which, there are various different embodiments, and these embodiments are all conceivable by those skilled in the art after understanding the idea of the present application, therefore, they are not listed one by one here.

Claims

1. A north-south shared sunlight greenhouse, which extends in the east-west direction, and the top of which is made of a transparent material; characterized in that, A greenhouse is provided with isolation wall columns arranged in east-west direction, and transparent walls are arranged between the isolation wall columns; the transparent walls divide the greenhouse into a southern room and a northern room.

2. A north-south shared sunlight greenhouse according to claim 1, characterized in that The area of the southern room is greater than 2 times the area of the northern room.

3. The north-south shared sunlight greenhouse according to claim 1, wherein, The transparent walls are made of transparent plastic cloth.

4. The north-south shared sunlight greenhouse according to claim 1, wherein, The inner wall of the northern side of the northern room is provided with a light-reflecting plate.

5. A north-south shared sunlight greenhouse according to claim 4, characterized in that The light-reflecting plate is a louver structure, and the rotating shaft of the light-reflecting strips constituting the louver structure is in vertical direction.

6. A north-south shared sunlight greenhouse according to claim 5, characterized in that The light-reflecting strips are driven by a driving mechanism.

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