Novel agricultural greenhouse ventilation device

Abstract

The utility model relates to the technical field of agricultural production, and discloses a novel agricultural greenhouse ventilation device which comprises a base, door frames are fixedly connected to the left side and the right side of the top end of the base, a ventilation pipe is fixedly connected to the top between the door frames, and ventilation bent pipes are fixedly connected to the left end and the right end of the ventilation pipe. According to the greenhouse, temperature exchange of external cold and hot air is conducted through the air distribution pipes distributed at equal intervals, meanwhile, high-temperature air on the greenhouse roof is rapidly exhausted through the heat dissipation holes in the greenhouse roof, the heat dissipation holes in the greenhouse roof are used for heat dissipation, the heat dissipation efficiency of the greenhouse roof is improved, and the environment is protected. Rainwater infiltration is prevented by adjusting the angles of the air inlet and outlet holes, small diseases and pests are filtered through the filter bag at the air distribution opening, and meanwhile large diseases and pests are removed and filtered through the filter screen made of stainless steel at the air inlet and outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural production, in particular to a novel ventilation device for agricultural greenhouses. Background Art

[0002] In the past, agricultural production largely relied on natural climate conditions, and the growth and harvest of crops were easily affected by factors such as seasonal changes and adverse weather. With the growth of the population and the continuous increase in the demand for agricultural products, it has become crucial to improve agricultural production efficiency and stability. The progress of materials science has provided a basis for agricultural greenhouses. For example, the emergence of plastic films and glass materials with high strength, good light transmittance, and durability has enabled the construction of effective covering structures that can allow sufficient sunlight to penetrate while regulating the temperature and humidity inside the greenhouse. The research and application of greenhouse technology have also provided a reference for the development of agricultural greenhouses. The exploration of the principles and methods of greenhouse environment control has promoted the continuous improvement of the regulation technologies for temperature, humidity, light, ventilation, etc. in agricultural greenhouses. The development of agricultural engineering technology has made the structural design of greenhouses more reasonable and diversified. From simple bamboo and wood structures to strong steel structures and aluminum alloy structures, the bearing capacity and stability of greenhouses have been continuously improved. The integration of automation and intelligent technologies, such as automatic irrigation systems, temperature and humidity sensors, and intelligent ventilation equipment, enables agricultural greenhouses to achieve precise environmental control and create the most suitable growth conditions for crops.

[0003] The ventilation device of an agricultural greenhouse usually consists of the following main parts: Ventilation openings: Generally set at the top and sides of the greenhouse, they are the channels for air to enter and exit the greenhouse. The top ventilation openings help to discharge hot air, and the side ventilation openings can promote horizontal air exchange. Insect-proof nets: Installed at the ventilation openings to prevent pests from entering the greenhouse. Usually made of fine metal nets or synthetic fiber nets. Ventilation ducts: Used to guide and distribute ventilation airflows to ensure effective ventilation in all areas of the greenhouse. Fans: Can enhance the ventilation effect and accelerate air flow. There are different types such as axial fans and centrifugal fans, which are selected according to the size of the greenhouse and ventilation requirements. Control systems: Used to control the operation of the ventilation device, including temperature and humidity sensors and controllers. Automatically start or stop the ventilation equipment according to preset environmental parameters. Sealing components: Ensure the airtightness when the ventilation windows are closed to prevent air leakage.

[0004] The existing ventilation device has a poor ventilation and heat dissipation effect for agricultural vegetable greenhouses with a long length. When the light is strong and the temperature rises, the temperature inside the greenhouse rises rapidly, and the temperature of each part inside the greenhouse cannot start to decrease quickly, affecting the planting quality of agricultural products. Moreover, when the ventilation ducts are opened, external pests and external rainwater are extremely likely to penetrate into the greenhouse, which is not conducive to pest control and environmental maintenance inside the greenhouse. Content of the Utility Model

[0005] To make up for the above deficiencies, the present utility model provides a new type of agricultural greenhouse ventilation device, aiming to improve the poor temperature control interaction effect in the greenhouse during the agricultural production process in the prior art, and the poor pest control and environmental maintenance effects in the greenhouse.

[0006] To achieve the above object, the present utility model adopts the following technical solutions: A new type of agricultural greenhouse ventilation device, including a base, both left and right sides of the top of the base are fixedly connected with portal frames, the top between the portal frames is fixedly connected with a ventilation pipe, both left and right ends of the ventilation pipe are fixedly connected with ventilation elbows, both left and right sides inside the ventilation pipe are fixedly connected with stainless steel insect-proof nets, the left middle part and the right middle part inside the ventilation pipe are fixedly connected with circulation fans, several air distribution pipes are equidistantly fixedly connected to the front lower part and the rear lower part outside the ventilation pipe, the bottom end of the air distribution pipe is fixedly connected with an insect-proof net bag, the middle part of the bottom end of the ventilation pipe is fixedly connected with a connecting frame, the bottom end of the connecting frame is fixedly connected with a heat collecting pipe, several hot air suction pipes are equidistantly fixedly connected to the front upper part and the rear upper part of the heat collecting pipe, both left and right ends of the heat collecting pipe are fixedly connected with heat dissipation pipes, both left and right sides inside the heat collecting pipe are fixedly connected with heat dissipation fans, rain shields are fixedly connected to the front and rear parts inside the heat dissipation pipe, and stainless steel insect-proof nets are fixedly connected to the front middle part and the middle rear part inside the heat dissipation pipe.

[0007] As a further description of the above technical solution:

[0008] The right end of the portal frame is fixedly connected with a door frame, and an opening controller is arranged in the middle of the front end of the door frame.

[0009] As a further description of the above technical solution:

[0010] A hinge rolling door is slidably connected to the middle part inside the door frame, and a rolling door machine is fixedly connected to the top end of the hinge rolling door.

[0011] As a further description of the above technical solution:

[0012] Both the front and rear parts of the top of the base are fixedly connected with side plates.

[0013] As a further description of the above technical solution:

[0014] Fixed frames are fixedly connected to the left, middle, and right parts of the top end of the ventilation pipe.

[0015] As a further description of the above technical solution:

[0016] An insect discharge port is arranged at the bottom end of the insect-proof net bag.

[0017] As a further description of the above technical solution:

[0018] The top end of the side plate is fixedly connected with a ceiling, and both the ceiling and the side plate are built with transparent daylighting tiles.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, the temperature exchange of external cold and hot air is carried out through the equally spaced air distribution pipes, and at the same time, the high-temperature air on the ceiling is quickly discharged through the heat dissipation holes on the ceiling, preventing the temperature in the greenhouse from being too high and affecting the production of agricultural products.

[0021] 2. In the utility model, by adjusting the angles of the air inlet and outlet holes to make the angle directions of the air inlet and outlet face downward, rainwater infiltration is prevented. Small pests are filtered by using the filter bags at the air distribution openings, and at the same time, larger pests are removed and filtered by using the filter screens made of stainless steel at the air inlet and outlet. Description of the drawings

[0022] Figure 1 is a three-dimensional view of a novel agricultural greenhouse ventilation device proposed by the utility model;

[0023] Figure 2 is a structural schematic diagram of the air pipe of a novel agricultural greenhouse ventilation device proposed by the utility model;

[0024] Figure 3 is a sectional structural schematic diagram of the air pipe of a novel agricultural greenhouse ventilation device proposed by the utility model;

[0025] Figure 4 is Figure 2 the enlarged view of part A in

[0026] Legend description:

[0027] 1. Side plate; 2. Ceiling; 3. Base; 4. Gantry; 5. Door frame; 6. Hinged rolling door; 7. Ventilation pipe; 8. Ventilation elbow; 9. Stainless steel insect-proof net; 10. Circulation fan; 11. Air distribution pipe; 12. Insect filter net bag; 13. Heat collecting pipe; 14. Hot air suction pipe; 15. Heat dissipation fan; 16. Rain shield; 17. Connecting frame; 18. Fixed frame; 19. Heat dissipation pipe. Specific implementation manners

[0028] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0029] Refer to Figures 1-3, an embodiment provided by the present utility model: a novel agricultural greenhouse ventilation device, including a base 3. On both the left and right sides of the top of the base 3, there are fixedly connected gantry frames 4. At the top between the gantry frames 4, there is fixedly connected a ventilation pipe 7. At the left and right ends of the ventilation pipe 7, there are fixedly connected ventilation elbows 8. On both the left and right sides inside the ventilation pipe 7, there are fixedly connected stainless steel insect-proof nets 9. At the left middle part and the right middle part inside the ventilation pipe 7, there are fixedly connected circulation fans 10. At the front lower part and the rear lower part on the outside of the ventilation pipe 7, there are equidistantly fixedly connected a number of air distribution pipes 11. At the bottom end of the air distribution pipe 11, there is fixedly connected an insect-filtering net bag 12. After crops are planted in the greenhouse, to ensure that the temperature in the greenhouse is appropriate, farmers control the start and stop of the circulation fan 10 in the ventilation pipe 7 according to the data detected by the temperature control monitoring device in the greenhouse. The circulation fan 10 pumps the external air to the air distribution pipes 11 at various places in the ventilation pipe 7, and conveys the air with lower temperature to various places in the greenhouse. And under the suction of the heat air suction pipe 14 on the heat collecting pipe 13 by the heat dissipation fan 15, the hot air on the ceiling 2 is quickly drawn out and discharged from the greenhouse, which can quickly reduce the high temperature in the greenhouse.

[0030] Refer to Figures 1-4 , at the middle part of the bottom end of the ventilation pipe 7, there is fixedly connected a connecting frame 17. At the bottom end of the connecting frame 17, there is fixedly connected a heat collecting pipe 13. At the front upper part and the rear upper part of the heat collecting pipe 13, there are equidistantly fixedly connected heat air suction pipes 14. At the left and right ends of the heat collecting pipe 13, there are fixedly connected heat dissipation pipes 19. On both the left and right sides inside the heat collecting pipe 13, there are fixedly connected heat dissipation fans 15. At the front and rear parts inside the heat dissipation pipe 19, there are fixedly connected rain shielding plates 16. At the front middle part and the middle rear part inside the heat dissipation pipe 19, there are fixedly connected stainless steel insect-proof nets 9. By making the air inlet of the ventilation elbow 8 vertically downward, in rainy weather, external rainwater will not seep into the greenhouse. The rain shielding plates 16 on the heat dissipation pipes 19 can effectively block the intrusion of external rainwater and affect the environmental control in the greenhouse. And the stainless steel insect-proof nets 9 are used to block larger pest insects outside. For smaller pest insects, the insect-filtering net bag 12 is used to collect, process and kill the pest insects, and then the insect corpses are recycled through the insect discharge port.

[0031] Refer to Figures 1-4 , at the right end of the gantry frame 4, there is fixedly connected a door frame 5. At the middle part of the front end of the door frame 5, there is provided an opening controller. Inside the middle part of the door frame 5, there is a sliding connection with a hinge rolling door 6. At the top end of the hinge rolling door 6, there is fixedly connected a rolling door machine. At the front and rear parts of the top of the base 3, there are fixedly connected side plates 1. At the left middle right part of the top end of the ventilation pipe 7, there are fixedly connected fixing frames 18. At the bottom end of the insect-filtering net bag 12, there is an insect discharge port. At the top end of the side plate 1, there is fixedly connected a ceiling 2. Both the ceiling 2 and the side plate 1 are built with transparent lighting tiles. When farmers need to enter the agricultural greenhouse for agricultural production operations, they only need to control the winding and unwinding of the rolling door machine through the door control, so that the hinge rolling door 6 moves up and down in the chute inside the door frame 5 to open and close the door.

[0032] Working principle: After crops are planted in the greenhouse, in order to ensure that the temperature in the greenhouse is appropriate, farmers control the start and stop of the circulation fan 10 in the ventilation pipe 7 according to the data detected by the temperature control monitoring device in the greenhouse. The circulation fan 10 pumps the external air to the air distribution pipes 11 at various places in the ventilation pipe 7, and conveys the air with lower temperature to various places in the greenhouse. Moreover, under the suction of the heat dissipation fan 15, the hot air suction pipe 14 on the heat collecting pipe 13 quickly extracts the hot air on the ceiling 2 and discharges it out of the greenhouse, which can quickly reduce the high temperature in the greenhouse. The air inlet of the ventilation elbow 8 is vertically downward, so that in rainy weather, external rainwater will not seep into the greenhouse. The rain shield 16 on the heat dissipation pipe 19 can effectively block the intrusion of external rainwater and affect the environmental control in the greenhouse. The stainless steel insect-proof net 9 blocks the larger pests outside. For the smaller pests, the filter insect net bag 12 is used to collect, process and kill the pests, and then the insect corpses are recycled through the insect discharge port. When farmers need to enter the agricultural greenhouse for agricultural production operations, they only need to control the retraction and release of the rolling machine through the door control, so that the hinge rolling door 6 moves up and down in the chute in the door frame 5 to open and close the door.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A novel agricultural greenhouse ventilation device, comprising a base (3), characterized in that: The top and left sides of the base (3) are fixedly connected to door frames (4), the top between the door frames (4) is fixedly connected to a ventilation pipe (7), the left and right ends of the ventilation pipe (7) are fixedly connected to ventilation elbow pipes (8), the left and right sides of the inner side of the ventilation pipe (7) are fixedly connected to a stainless steel insect screen (9), the left middle and right middle parts of the inner side of the ventilation pipe (7) are fixedly connected to a circulation fan (10), the front lower part and the rear lower part of the outer side of the ventilation pipe (7) are fixedly connected to a plurality of air distribution pipes (11) at equal distances, the bottom end of the air distribution pipe (11) is fixedly connected to an insect filter bag (12), and the ventilation pipe (7) is fixedly connected to a stainless steel insect screen (9). A connecting frame (17) is fixedly connected to the middle of the bottom end of the tube (7), the bottom end of the connecting frame (17) is fixedly connected to a heat collecting tube (13), the front upper part and the rear upper part of the heat collecting tube (13) are fixedly connected to hot air suction pipes (14) at equal distances, the left and right ends of the heat collecting tube (13) are fixedly connected to heat dissipation tubes (19), the left and right sides of the inner side of the heat collecting tube (13) are fixedly connected to heat dissipation fans (15), the front and rear parts of the inner side of the heat dissipation tube (19) are fixedly connected to rain shields (16), and the front middle part and the middle and rear parts of the inner side of the heat dissipation tube (19) are fixedly connected to stainless steel insect screens (9).

2. A novel agricultural greenhouse ventilation device according to claim 1, characterized in that: The right end of the door frame (4) is fixedly connected to a door frame (5), and a door opening controller is provided at the middle of the front end of the door frame (5).

3. A novel agricultural greenhouse ventilation device according to claim 2, characterized in that: A hinged rolling shutter door (6) is slidably connected to the middle portion of the inner side of the door frame (5), and a rolling shutter machine is fixedly connected to the top end of the hinged rolling shutter door (6).

4. A novel agricultural greenhouse ventilation device according to claim 1, characterized in that: The front and rear parts of the top end of the base (3) are both fixedly connected to side panels (1).

5. A novel agricultural greenhouse ventilation device according to claim 1, characterized in that: The top, left, middle and right parts of the ventilation pipe (7) are all fixedly connected to fixing frames (18).

6. A novel agricultural greenhouse ventilation device according to claim 1, characterized in that: The bottom end of the insect filter net bag (12) is provided with an insect discharge opening.

7. A novel agricultural greenhouse ventilation device according to claim 4, characterized in that: The top of the side panel (1) is fixedly connected to a ceiling (2), and both the ceiling (2) and the side panel (1) are constructed using transparent lighting tiles.

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