Vegetable greenhouse temperature and humidity control device

Abstract

The utility model relates to the technical field of agricultural temperature and humidity control equipment, and discloses a vegetable greenhouse temperature and humidity control device which comprises a plurality of stand columns, a delivery pump and an air cooler, a plurality of cross beams are fixedly connected among the stand columns, and temperature and humidity sensors are fixedly installed on the outer sides of the stand columns. A plurality of connecting beams are fixedly connected among the cross beams, the stand columns are communicated with the cross beams and inner cavities of the connecting beams, spraying pipes are fixedly installed at the bottoms of the cross beams, one end of each spraying pipe is fixedly connected with the output end of a conveying pump, and one end of each cross beam is further connected with a booster fan at the output end of an air cooler through a pipeline. The conveying pump, the air cooler and the temperature and humidity sensor are electrically connected with an external master controller. By means of communicating cavities of the greenhouse stand columns, the cross beams and the connecting beams and matching with external ventilation or heating equipment, airflow is evenly exhausted from air outlets of all areas through the cavities, and the temperature difference problem of traditional two-end ventilation is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural temperature and humidity control equipment, in particular to a temperature and humidity control device for a vegetable greenhouse. Background Art

[0002] The temperature and humidity control in vegetable greenhouses is achieved through manual intervention to maintain the temperature and humidity in the greenhouse within a range suitable for vegetable growth. In terms of temperature, the greenhouse film is used for insulation, vents are used for heat dissipation, and heaters and hot air furnaces are used to increase the temperature in cold weather, and shade nets and sprays are used to cool down in hot weather.

[0003] At present, traditional vegetable greenhouses are equipped with convection fans at both ends to ventilate and dissipate heat. Due to the long structure of the greenhouse, the airflow formed by the fans at both ends mostly flows in a straight line, which is difficult to penetrate into various areas of the greenhouse. In addition, the airflow is easily blocked by obstacles such as seedling racks and crops in the greenhouse, and the airflow is prone to form vortices or dead corners in some areas, resulting in insufficient air exchange in the middle and corners. After the heat accumulates in the greenhouse, the airflow cannot be evenly diffused, resulting in low temperatures at both ends and high temperatures in the middle area. This uneven temperature will cause the seedlings to grow at different rates, and the weak seedlings will grow too long or wilt due to the high temperature. Similarly, in severe cold weather, the external heat cannot be evenly diffused to various areas of the greenhouse. Utility Model Content

[0004] The purpose of the utility model is to provide a temperature and humidity control device for a vegetable greenhouse, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A temperature and humidity control device for a vegetable greenhouse comprises a plurality of columns, a delivery pump and an air cooler, a plurality of beams fixedly connected between the plurality of columns, wherein temperature and humidity sensors are fixedly installed on the outsides of the plurality of columns, a plurality of connecting beams fixedly connected between the plurality of beams, and the columns are connected to the beams and the inner cavities of the connecting beams, wherein a plurality of spray tubes are fixedly installed on the bottoms of the beams, one end of the spray tubes is fixedly connected to the output end of the delivery pump, wherein one end of the plurality of beams is also connected to the output end booster fan of the air cooler through a pipeline, and the delivery pump, the air cooler and the temperature and humidity sensors are electrically connected to an external main controller respectively, a plurality of air troughs are respectively provided on both sides of the columns, a plurality of air troughs are also provided at the bottom of the connecting beam, and an air trough protection mechanism is fixedly installed in the air trough, the air trough protection mechanism comprises a panel, a plurality of protective covers are fixedly installed in the panel, and an impeller is movably installed in the protective cover.

[0007] As a further preferred embodiment of the present invention, a mounting groove is provided in the panel, and a plurality of positioning protrusions are provided on both sides of the mounting groove. The panel with the mounting groove can provide an installation base for the protective cover, so that the panel cooperates with the protective cover to provide protection for the wind trough, preventing foreign objects such as vegetable leaves in the greenhouse from entering the columns or connecting beams through the wind trough.

[0008] As a further preferred solution of the present invention, the longitudinal cross-section of the protective cover is a semicircular structure, and a plurality of air outlets are provided on the inner side of the protective cover.

[0009] As a further preferred solution of the present invention, two positioning grooves are provided on both sides of the protective cover, and the protective cover located between the two positioning grooves is also provided with an axial hole. The protective cover is inserted and installed in the installation groove, and the positioning groove is clamped on the corresponding positioning protrusion. The protective cover cooperates with the positioning protrusion on the inner side of the installation groove through the positioning grooves on both sides, which can realize the rapid assembly of the protective cover and is also beneficial to the later disassembly and maintenance of the protective cover and the impeller.

[0010] As a further preferred embodiment of the present invention, the impeller further comprises a rotating shaft, a plurality of blades are fixedly mounted on the outer side of the rotating shaft, and both ends of the rotating shaft are rotatably mounted in corresponding shaft holes.

[0011] As a further preferred embodiment of the present invention, a plurality of crushing heads are fixedly installed on the side of the blade away from the rotating shaft, and the rotating shaft with a plurality of blades on the outside is rotatably installed in the air outlet. The air delivered to the column and the connecting beam by the cold air fan and the booster fan can push the blades, so that the crushing heads on the outside of the blades pass through the corresponding air outlet, thereby cleaning up the vegetable leaves and other debris attached to the outer surface of the protective cover to prevent the air outlet from being blocked.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In the present invention, with the help of the interconnected cavities of greenhouse columns, beams and connecting beams, combined with external ventilation or heating equipment, the air flow is evenly discharged from the air outlets in each area through the cavity, solving the temperature difference problem of traditional ventilation at both ends.

[0014] In the utility model, the wind trough protection mechanism can protect the air outlet, and an impeller that rotates by wind force is provided in the protective cover, which can prevent blades and other debris from adhering to one side of the protective cover through the spraying of water mist or medicine, thereby ensuring the ventilation or heating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2It is a partial top view of the main structure of the utility model;

[0017] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 4 for Figure 1 Enlarged view of point B in the middle;

[0019] Figure 5 This is a schematic diagram of the wind trough protection mechanism and the column split structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the panel and protective cover split structure of the utility model;

[0021] Figure 7 This is a schematic diagram of the connection structure between the protective cover and the impeller of the utility model;

[0022] Figure 8 for Figure 6 Enlarged view of point C in the middle.

[0023] In the figure: 1. Column; 2. Crossbeam; 3. Connecting beam; 4. Spray tube; 5. Delivery pump; 6. Air cooler; 7. Air trough; 8. Air trough protection mechanism; 9. Panel; 10. Protective cover; 11. Impeller; 12. Mounting slot; 13. Positioning protrusion; 14. Air outlet; 15. Positioning slot; 16. Shaft hole; 17. Rotating shaft; 18. Blade; 19. Crushing head. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figures 1-8 As shown, the utility model provides a temperature and humidity control device for a vegetable greenhouse, comprising multiple columns 1, a delivery pump 5 and an air cooler 6, multiple beams 2 are fixedly connected between the multiple columns 1, wherein temperature and humidity sensors are fixedly installed on the outside of the multiple columns 1, multiple connecting beams 3 are fixedly connected between the multiple beams 2, and the columns 1 are connected to the inner cavities of the beams 2 and the connecting beams 3, wherein a spray tube 4 is fixedly installed at the bottom of the multiple beams 2, one end of the spray tube 4 is fixedly connected to the output end of the delivery pump 5, wherein one end of the multiple beams 2 is also connected to the output end booster fan of the air cooler 6 through a pipeline, and the delivery pump 5, the air cooler 6 and the temperature and humidity sensor are electrically connected to an external main controller respectively, multiple air troughs 7 are respectively opened on both sides of the column 1, and multiple air troughs 7 are also opened at the bottom of the connecting beam 3, and an air trough protection mechanism 8 is fixedly installed in the air trough 7, and the air trough protection mechanism 8 includes a panel 9, multiple protective covers 10 are fixedly installed in the panel 9, and an impeller 11 is movably installed in the protective cover 10.

[0026] like Figure 5-Figure 6 As shown, a mounting groove 12 is provided in the panel 9, and a plurality of positioning protrusions 13 are provided on both sides of the mounting groove 12. The panel 9 with the mounting groove 12 can provide an installation basis for the protective cover 10, so that the panel 9 cooperates with the protective cover 10 to provide protection for the wind trough 7, preventing foreign objects such as vegetable leaves in the greenhouse from entering the column 1 or the connecting beam 3 through the wind trough 7.

[0027] like Figure 6-Figure 8 As shown, the longitudinal cross-section of the protective cover 10 is a semicircular structure, and a plurality of air outlets 14 are provided on the inner side of the protective cover 10. Two positioning grooves 15 are provided on both sides of the protective cover 10. The protective cover 10 located between the two positioning grooves 15 is also provided with an axis hole 16. The protective cover 10 is inserted and installed in the installation groove 12, and the positioning groove 15 is clamped on the corresponding positioning protrusion 13. The protective cover 10 cooperates with the positioning protrusion 13 on the inner side of the installation groove 12 through the positioning grooves 15 on both sides, which can realize the rapid assembly of the protective cover 10 and is also conducive to the disassembly and maintenance of the protective cover 10 and the impeller 11 in the later stage. The impeller 11 also includes a rotating shaft 17 A plurality of blades 18 are fixedly mounted on the outside of the rotating shaft 17, and both ends of the rotating shaft 17 are rotatably mounted in the corresponding shaft holes 16. A plurality of crushing heads 19 are fixedly mounted on the side of the blade 18 away from the rotating shaft 17. The rotating shaft 17 with the plurality of blades 18 on the outside is rotatably mounted in the air outlet 14. The air delivered to the column 1 and the connecting beam 3 by the cold air fan 6 and the booster fan can push the blades 18, so that the crushing heads 19 on the outside of the blades 18 pass through the corresponding air outlet 14, thereby cleaning up the vegetable leaves and other debris attached to the outer surface of the protective cover 10 to prevent the air outlet 14 from being blocked.

[0028] It should be noted that the present invention is a temperature and humidity control device for a vegetable greenhouse. First, the temperature and humidity sensors on the outside of the plurality of upright posts 1 monitor the environmental data in real time and transmit the information to the main controller. When the temperature is too high, the main controller starts the delivery pump 5, and water sprays out droplets through the spray pipe 4, which absorbs heat and cools down the room through evaporation. At the same time, the air cooler 6 supplies air to two of the cross beams 2 through the pipeline. Since the upright posts 1, cross beams 2, and connecting beams 3 are all hollow columnar structures, the air flows in the inner cavity of the upright posts 1, cross beams 2, and connecting beams 3 and is discharged from the air duct 7, thereby realizing synchronous air supply in different areas of the greenhouse and reducing the temperature difference between the various areas in the greenhouse. In severe cold weather, an air heating device can be equipped and connected to the pipeline connected to two of the cross beams 2 through a pipeline. The hot air is evenly blown out from each air duct 7 through the cavity, avoiding the temperature unevenness problem caused by traditional two-end ventilation. The spray pipe 4 can also spray water to increase humidity or spray pesticides when the humidity is low.

[0029] However, since water is sprayed to increase humidity or pesticides are sprayed through the spray pipe 4 in the greenhouse, some pesticides will adhere to the air outlet 14 and residual crystals will form, thereby affecting the air output. At this time, when ventilation is carried out in the greenhouse, the airflow drives the blades 18 of the impeller 11 to rotate, and the crushing heads 19 on the blades 18 slide from the air outlet 14, thereby clearing the debris outside the protective cover 10 and preventing the air outlet 14 from being blocked.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A temperature and humidity control device for a vegetable greenhouse, characterized by: The invention comprises a plurality of columns (1), a delivery pump (5) and a cooling fan (6), wherein a plurality of beams (2) are fixedly connected between the plurality of columns (1), wherein temperature and humidity sensors are fixedly installed on the outside of the plurality of columns (1), a plurality of connecting beams (3) are fixedly connected between the plurality of beams (2), and the columns (1) are in communication with the inner cavities of the beams (2) and the connecting beams (3), wherein a spray pipe (4) is fixedly installed at the bottom of the plurality of beams (2), wherein one end of the spray pipe (4) is fixedly connected to the output end of the delivery pump (5), wherein one end of the plurality of beams (2) is fixedly connected to the output end of the delivery pump (5), and wherein one end of the plurality of beams (2) is fixedly connected to the output end of the delivery pump (5). The end is also connected to the output end booster fan of the air cooler (6) through a pipeline, and the delivery pump (5), the air cooler (6) and the temperature and humidity sensor are respectively electrically connected to the external main controller, a plurality of air slots (7) are respectively opened on both sides of the column (1), a plurality of air slots (7) are also opened at the bottom of the connecting beam (3), and an air slot protection mechanism (8) is fixedly installed in the air slot (7), the air slot protection mechanism (8) includes a panel (9), a plurality of protective covers (10) are fixedly installed in the panel (9), and an impeller (11) is movably installed in the protective cover (10).

2. A vegetable greenhouse temperature and humidity control device according to claim 1, characterized in that: A mounting groove (12) is provided in the panel (9), and a plurality of positioning protrusions (13) are provided on both sides of the mounting groove (12).

3. A vegetable greenhouse temperature and humidity control device according to claim 2, characterized in that: The longitudinal cross-section of the protective cover (10) is a semicircular structure, and a plurality of air outlets (14) are provided on the inner side of the protective cover (10).

4. A vegetable greenhouse temperature and humidity control device according to claim 3, characterized in that: Two positioning grooves (15) are provided on both sides of the protective cover (10), and an axial hole (16) is provided on the protective cover (10) located between the two positioning grooves (15). The protective cover (10) is inserted and installed in the installation groove (12), and the positioning groove (15) is clamped on the corresponding positioning protrusion (13).

5. A vegetable greenhouse temperature and humidity control device according to claim 4, characterized in that: The impeller (11) further comprises a rotating shaft (17), a plurality of blades (18) are fixedly mounted on the outer side of the rotating shaft (17), and both ends of the rotating shaft (17) are rotatably mounted in corresponding shaft holes (16).

6. A vegetable greenhouse temperature and humidity control device according to claim 5, characterized in that: A plurality of crushing heads (19) are fixedly mounted on one side of the blade (18) away from the rotating shaft (17).

Images