Vegetable planting greenhouse ventilation device

Abstract

The utility model discloses a vegetable planting greenhouse ventilation device which comprises a vegetable greenhouse, a base plate, a water storage tank, a ventilation heat preservation mechanism, an automatic opening and closing mechanism and an electric heating rod, the base plate is installed on the side face of the vegetable greenhouse, the water storage tank and the ventilation heat preservation mechanism are installed on the base plate, and the ventilation heat preservation mechanism penetrates through the water storage tank and extends into the vegetable greenhouse. A plurality of exhaust grooves are formed in the base plate, an automatic opening and closing mechanism used for blocking the exhaust grooves is installed on the base plate, and an electric heating rod is installed in the water storage tank. According to the vegetable greenhouse, ventilation and air exchange are convenient, heating and heat preservation can be conducted on the vegetable greenhouse, and vegetables are prevented from being frostbitten.

Description

Technical Field

[0001] The utility model relates to the technical field of vegetable greenhouses, in particular to a ventilation device for a vegetable planting greenhouse. Background Art

[0002] Vegetable greenhouse is a frame-covered structure with excellent thermal insulation performance. It allows people to eat off-season vegetables. Generally, vegetable greenhouses use bamboo or steel structure frames, covered with one or more layers of thermal insulation plastic film, thus forming a greenhouse space. The outer film effectively prevents the loss of carbon dioxide produced by the growth of vegetables inside, making the greenhouse have a good thermal insulation effect.

[0003] Vegetable greenhouses need to be frequently ventilated when growing vegetables to keep the air in the greenhouse fresh. Existing vegetable greenhouses are ventilated by directly opening the entrances and exits of the greenhouses. However, since vegetable greenhouses are mostly used in winter, the temperature is lower in winter. Directly opening the entrances and exits of the greenhouses for ventilation will lower the temperature in the greenhouse, which can easily cause vegetables to be frostbitten. Therefore, in view of the above situation, it is urgent to develop a ventilation device for vegetable greenhouses that is convenient for ventilation and can heat and keep the vegetable greenhouses warm to prevent vegetables from being frostbitten, so as to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of the utility model is to provide a ventilation device for a vegetable planting greenhouse to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A ventilation device for a vegetable planting greenhouse comprises a vegetable greenhouse, a base plate, a water storage tank, a ventilation and heat preservation mechanism, an automatic opening and closing mechanism and an electric heating rod. The base plate is installed on the side of the vegetable greenhouse, the water storage tank and the ventilation and heat preservation mechanism are installed on the base plate, the ventilation and heat preservation mechanism passes through the water storage tank and extends into the vegetable greenhouse, a plurality of exhaust slots are arranged on the base plate, an automatic opening and closing mechanism for blocking the exhaust slots is installed on the base plate, an electric heating rod is installed in the water storage tank, the ventilation and heat preservation mechanism comprises: a fan, a spiral tube, a shunt pipe, an air outlet nozzle, an air inlet pipe, a dust filter and a dust cleaning mechanism, The spiral tube is installed in the water tank, the exhaust nozzle of the fan is connected to the spiral tube, the spiral tube is connected to the diversion pipe, a plurality of air outlet nozzles are installed on the diversion pipe, the air inlet nozzle of the fan is connected to the air inlet pipe, a dust filter is installed in the air inlet pipe, a dust cleaning mechanism is installed on the dust filter, the automatic opening and closing mechanism includes: a driving motor, a transmission shaft, a baffle and an insertion strip, the driving motor is fixed on a base plate, the transmission shaft is rotatably connected to the base plate, the output shaft of the driving motor is connected to the transmission shaft, a baffle is fixed on the transmission shaft, and a plurality of insertion strips are installed on the baffle.

[0007] Preferably, the air outlet is located inside the vegetable greenhouse.

[0008] Preferably, each of the inserts corresponds to an exhaust groove.

[0009] Preferably, the dust cleaning mechanism comprises: a rotating shaft and a brush, the rotating shaft is rotatably connected to the dust filter, and the brush is installed on the rotating shaft.

[0010] Preferably, the spiral tube is made of copper.

[0011] Preferably: the inner wall of the water storage tank is provided with a heat-insulating aluminum foil.

[0012] The beneficial effects of the utility model are as follows: when the ventilation device for vegetable planting greenhouse is used, the drive motor drives the transmission shaft, baffle and insert to rotate, so that the baffle and insert open the exhaust slot, and then the airflow is delivered to the spiral tube by the fan, the dust in the airflow is filtered out by the dust filter, the water flow in the water storage tank is heated by the electric heating rod, the airflow in the spiral tube is heated by hot water, and the heated gas is discharged into the vegetable greenhouse through the shunt pipe and the air outlet nozzle, and the turbid air in the vegetable greenhouse is discharged from the exhaust slot to keep the air in the vegetable greenhouse fresh. At the same time, the hot air can heat and keep the vegetable greenhouse warm to prevent the low-temperature air from freezing the vegetables. In summary, the utility model is convenient for ventilation of the vegetable greenhouse, and can heat and keep the vegetable greenhouse warm to prevent the vegetables from being frostbitten. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is an internal sectional view of the present utility model.

[0015] Figure 3 It is a partial structure diagram of the utility model Figure 1 .

[0016] Figure 4 It is a partial structure diagram of the utility model Figure 2 .

[0017] Figure 5 It is a partial structure diagram of the utility model Figure 3 .

[0018] Figure 6 It is a partial structure diagram of the utility model Figure 4 .

[0019] Figure 7 It is a partial structure diagram of the utility model Figure 5 .

[0020] Legend:

[0021] 1. Vegetable greenhouse; 2. Base plate; 201. Exhaust slot; 3. Water tank; 4. Ventilation and heat preservation mechanism; 401. Fan; 402. Spiral tube; 403. Diverter pipe; 404. Air outlet nozzle; 405. Air inlet pipe; 406. Dust filter; 407. Dust cleaning mechanism; 4071. Rotating shaft; 4072. Brush; 5. Automatic opening and closing mechanism; 501. Driving motor; 502. Transmission shaft; 503. Baffle; 504. Insert; 6. Electric heating rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Specific examples are given below.

[0024] See also Figure 1 to Figure 7In the embodiment of the utility model, a ventilation device for a vegetable planting greenhouse includes a vegetable greenhouse 1, a substrate 2, a water storage tank 3, a ventilation and heat preservation mechanism 4, an automatic opening and closing mechanism 5 and an electric heating rod 6. The substrate 2 is installed on the side of the vegetable greenhouse 1, and the water storage tank 3 and the ventilation and heat preservation mechanism 4 are installed on the substrate 2. Water is stored in the water storage tank 3. The inner wall of the water storage tank 3 is provided with a heat-insulating aluminum foil to improve the heat preservation performance of the water storage tank 3. The ventilation and heat preservation mechanism 4 passes through the water storage tank 3 and extends into the vegetable greenhouse 1. A plurality of exhaust slots are provided on the substrate 2. 201, the base plate 2 is provided with an automatic opening and closing mechanism 5 for blocking the exhaust slot 201, the water storage tank 3 is provided with an electric heating rod 6, the ventilation and heat preservation mechanism 4 comprises: a fan 401, a spiral tube 402, a shunt pipe 403, an air outlet nozzle 404, an air inlet pipe 405, a dust filter 406 and a dust cleaning mechanism 407, the spiral tube 402 is installed in the water storage tank 3, the exhaust nozzle of the fan 401 is connected to the spiral tube 402, the spiral tube 402 is made of copper, so that it has good thermal conductivity, the spiral tube 402 and the shunt pipe are connected. The shunt pipe 403 is connected to the vegetable greenhouse 1, and a plurality of air outlet nozzles 404 are installed on the shunt pipe 403. The air outlet nozzles 404 are located inside the vegetable greenhouse 1. The air inlet nozzle of the fan 401 is connected to the air inlet pipe 405. A dust filter 406 is installed in the air inlet pipe 405. A dust cleaning mechanism 407 is installed on the dust filter 406. The dust cleaning mechanism 407 includes: a rotating shaft 4071 and a brush 4072. The rotating shaft 4071 is rotatably connected to the dust filter 406. The brush 4072 is installed on the rotating shaft 4071. When in use, the dust filter 406 is cleaned by the rotating shaft 4071. The automatic opening and closing mechanism 5 opens the exhaust slot 201, conveys the airflow to the spiral tube 402 through the fan 401, filters the dust in the airflow through the dust filter 406, heats the water flow in the water tank 3 through the electric heating rod 6, and heats the airflow in the spiral tube 402 through hot water. The heated gas is discharged into the vegetable greenhouse 1 through the diversion pipe 403 and the air outlet nozzle 404, and the turbid air in the vegetable greenhouse 1 is discharged from the exhaust slot 201 to keep the air in the vegetable greenhouse 1 fresh. At the same time, the hot air can heat and keep the vegetable greenhouse 1 warm.

[0025] The automatic opening and closing mechanism 5 includes: a driving motor 501, a transmission shaft 502, a baffle 503 and an insertion strip 504, wherein the driving motor 501 is fixed on the base plate 2, the transmission shaft 502 is rotatably connected to the base plate 2, the output shaft of the driving motor 501 is connected to the transmission shaft 502, a baffle 503 is fixed on the transmission shaft 502, and a plurality of insertion strips 504 are installed on the baffle 503, and each of the insertion strips 504 corresponds to an exhaust groove 201.

[0026] Working principle: When the ventilation device for the vegetable planting greenhouse is used, the drive motor 501 drives the transmission shaft 502, the baffle 503 and the insert 504 to rotate, so that the baffle 503 and the insert 504 open the exhaust slot 201, and then the airflow is transported to the spiral tube 402 by the fan 401, and the dust in the airflow is filtered out by the dust filter 406. The water flow in the water tank 3 is heated by the electric heating rod 6, and the airflow in the spiral tube 402 is heated by hot water. The heated gas is discharged into the vegetable greenhouse 1 through the diverter pipe 403 and the air outlet nozzle 404, and the turbid air in the vegetable greenhouse 1 is discharged from the exhaust slot 201 to keep the air in the vegetable greenhouse 1 fresh. At the same time, the hot air can heat and keep the vegetable greenhouse 1 warm to prevent the low-temperature air from freezing the vegetables.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ventilation device for a vegetable growing greenhouse, characterized in that: The vegetable greenhouse (1) comprises a base plate (2), a water storage tank (3), a ventilation and heat preservation mechanism (4), an automatic opening and closing mechanism (5) and an electric heating rod (6); the base plate (2) is installed on the side of the vegetable greenhouse (1); the water storage tank (3) and the ventilation and heat preservation mechanism (4) are installed on the base plate (2); the ventilation and heat preservation mechanism (4) passes through the water storage tank (3) and extends into the vegetable greenhouse (1); a plurality of exhaust slots (201) are arranged on the base plate (2); The base plate (2) is provided with an automatic opening and closing mechanism (5) for blocking the exhaust groove (201); an electric heating rod (6) is provided in the water storage tank (3); the ventilation and heat preservation mechanism (4) comprises: a fan (401), a spiral tube (402), a diverter tube (403), an air outlet nozzle (404), an air inlet pipe (405), a dust filter (406) and a dust cleaning mechanism (407); the spiral tube (402) is provided in the water storage tank (3); The exhaust nozzle of the fan (401) is connected to the spiral tube (402), the spiral tube (402) is connected to the diverter tube (403), the diverter tube (403) is equipped with a plurality of exhaust nozzles (404), the air inlet nozzle of the fan (401) is connected to the air inlet pipe (405), a dust filter (406) is installed in the air inlet pipe (405), a dust cleaning mechanism (407) is installed on the dust filter (406), and the automatic opening and closing mechanism ( 5) comprises: a driving motor (501), a transmission shaft (502), a baffle (503) and an insertion strip (504), wherein the driving motor (501) is fixed on a base plate (2), the transmission shaft (502) is rotatably connected to the base plate (2), an output shaft of the driving motor (501) is connected to the transmission shaft (502), a baffle (503) is fixed on the transmission shaft (502), and a plurality of insertion strips (504) are installed on the baffle (503).

2. The ventilation device for vegetable growing greenhouse according to claim 1, characterized in that: The air outlet nozzle (404) is located inside the vegetable greenhouse (1).

3. The ventilation device for vegetable planting greenhouse according to claim 1, characterized in that: Each of the inserts (504) corresponds to an exhaust groove (201).

4. The ventilation device for vegetable growing greenhouse according to claim 1, characterized in that: The dust cleaning mechanism (407) comprises a rotating shaft (4071) and a brush (4072); the rotating shaft (4071) is rotatably connected to the dust filter (406); and the brush (4072) is mounted on the rotating shaft (4071).

5. The ventilation device for vegetable growing greenhouse according to claim 1, characterized in that: The spiral tube (402) is made of copper.

6. The ventilation device for vegetable growing greenhouse according to claim 1, characterized in that: The inner wall of the water storage tank (3) is provided with heat-insulating aluminum foil.

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