A facility agriculture greenhouse ventilation device

Abstract

The application discloses a facility agriculture greenhouse ventilation device, which comprises a base shell, a ventilation grille, a flow guide assembly, a rotating assembly, a blowing fan blade, two shaft rods, a dust cover and a base; the base shell is provided with a ventilation opening on the surface, and the ventilation grille is arranged on one side of the base shell; the flow guide assembly is arranged on the other side of the base shell, and a cavity is formed in the flow guide assembly; the rotating assembly is rotatably installed at one end of the cavity close to the base shell; the blowing fan blade is arranged at one end of the cavity close to the base shell and located on the side, away from the flow guide assembly, of the rotating assembly, and a gap exists between the rotating assembly and the blowing fan blade; the two shaft rods are connected by penetrating the flow guide assembly and the rotating assembly, and the two shaft rods are arranged along the diameter direction of the rotating assembly; through the above arrangement, the coverage area of the rotating assembly to the air outlet of the flow guide assembly can be adjusted, and then the air outflow amount can be adjusted, so that the situation that the air volume cannot be timely adjusted by manual operation, the temperature in the greenhouse fluctuates greatly and the growth of crops is not conducive is avoided.

Description

Technical Field

[0001] This application relates to the field of agricultural greenhouses, and more particularly to a ventilation device for facility agriculture greenhouses. Background Technology

[0002] A greenhouse is a single-span arched roof structure without heating, using plastic film as the covering material. It is characterized by its ease of construction, convenient use, and relatively low investment, making it a simple form of protected cultivation facility. With the development of the plastics industry, greenhouses have been widely adopted by countries around the world.

[0003] In greenhouse agriculture, in order to create a good growing environment for crops, it is necessary to regulate the temperature, humidity, air quality, and other factors inside the greenhouse.

[0004] Some greenhouses use ventilation openings at the top, which are opened and closed manually by pulling ropes or rolling shutters. This method is labor-intensive and inefficient, and cannot accurately control the amount and duration of ventilation. It also cannot respond promptly to changes in the greenhouse environment. For example, when the temperature rises or falls rapidly, manual operation may not be able to adjust the size of the ventilation openings in time, resulting in large temperature fluctuations inside the greenhouse, which is not conducive to crop growth. Utility Model Content

[0005] The main purpose of this application is to provide a ventilation device for facility agriculture greenhouses, which aims to solve the technical problem that manual operation may not be able to adjust the size of the ventilation openings in time, resulting in large temperature fluctuations inside the greenhouse, which is not conducive to crop growth.

[0006] To achieve the above objectives, this application provides a ventilation device for a greenhouse in facility agriculture, comprising a base shell, a ventilation grille, a flow guiding component, a rotating component, a blower blade, two shafts, a dust cover, and a base; wherein, the surface of the base shell has ventilation openings, and the ventilation grille is located on one side of the base shell; the flow guiding component is located on the other side of the base shell, and a cavity is formed inside the flow guiding component; the rotating component is rotatably mounted on one end of the cavity near the base shell; the blower blade is located on one end of the cavity near the base shell, and is located on the side of the rotating component away from the flow guiding component, and there is a gap between the rotating component and the blower blade; the two shafts respectively pass through the flow guiding component and are connected to the rotating component, and the two shafts are arranged along the diameter direction of the rotating component; the outer arc surface of the dust cover has an abutment surface, and the dust cover is fixedly mounted on the side of the ventilation grille away from the base shell through the abutment surface; the base is mounted on the end of the flow guiding component away from the base shell, and the surface of the base has through holes.

[0007] Optionally, the flow guiding assembly includes a flow guiding cone and a flexible connecting pipe; wherein, the flow guiding cone is movably engaged with a conical structure on the base shell, the conical structure being disposed at the edge of the base shell and extending in a direction close to the flow guiding cone; one end of the flexible connecting pipe is movably engaged with the flow guiding cone, and the other end is connected to the base; wherein, the inner wall of the base shell near the conical structure is a hollow structure, and the outer arc surface of the flow guiding assembly abuts against the inner wall of the conical structure.

[0008] Optionally, the top of the outer arc surface of the flow guide sleeve cone is provided with a stop end face, the surface of the stop end face is in contact with the inner sidewall of the cone structure and is fixedly installed by bolts, and the end of the flow guide sleeve cone away from the stop end face is provided with a support column end.

[0009] Optionally, the top of the outer arc surface of the support column end is provided with a mating surface, and a hook-shaped end is provided at one edge of the inner arc surface of the support column end, the lower surface of the hook-shaped end abutting against the outer arc surface of the blower fan blade.

[0010] Optionally, one end of the flexible connecting pipe is provided with a claw hook end, the inner arc surface of the claw hook end penetrates into the support column end, and one side is attached to the mating surface.

[0011] Optionally, the other end of the flexible connecting tube is provided with a bending surface, one side of the bending surface is fixedly installed on the base, and the extended end of one side of the base is sleeved in the inner arc surface of the flexible connecting tube.

[0012] Optionally, the rotating assembly includes an annular air guide and a reserved cavity; wherein the annular air guide is movably connected to the surface of the guide sleeve cone via a shaft; and the reserved cavity is disposed on both sides of the outer arc surface of the annular air guide.

[0013] Optionally, one side of the annular air guide is an open structure, and the annular air guide and the guide sleeve cone are in the same plane.

[0014] Optionally, the annular air guide and the inner arc surface of the guide sleeve cone are provided with a reserved cavity, and one side of the reserved cavity corresponds to the flexible connecting pipe.

[0015] Optionally, a greenhouse body is fixedly installed on one side surface of the base by bolts. The greenhouse body has a cavity inside. The base shell is fixedly installed on one side of the cavity, and the blower fan blades are placed inside the cavity.

[0016] This application provides a ventilation device for facility agriculture greenhouses. The base shell provides the foundation for the installation of the entire device. The surface of the base shell has ventilation openings for airflow. The spacing of the ventilation grille bars ensures sufficient ventilation volume and also plays a preliminary rectification role in the incoming air, so that the air flows more evenly to the blower blades and improves ventilation efficiency. The dust cover not only effectively blocks external dust and impurities from entering the ventilation system, preventing wear on precision components such as the blower blades, but also helps prevent pests from entering the greenhouse. The base provides the necessary conditions for the installation of the entire device within the greenhouse. When airflow needs adjustment, the rotating shaft can be rotated, which in turn drives the rotating component. As the rotating component rotates, it gradually covers the air outlet of the air guide component. By controlling the coverage area of ​​the rotating component, the airflow can be precisely adjusted. For example, for crops that are sensitive to ventilation and thrive in a gentle breeze, such as certain orchid varieties, increasing the coverage of the rotating component over the air outlet of the air guide component reduces the airflow, creating a soft and gentle ventilation environment. Conversely, for vigorous crops with high ventilation requirements, decreasing the coverage of the rotating component over the air outlet of the air guide component increases the airflow to meet the crop's growth needs. Furthermore, it allows for timely adjustment of the ventilation opening size when temperatures rise or fall rapidly, preventing situations where manual adjustment might not be possible, leading to large temperature fluctuations inside the greenhouse that are detrimental to crop growth. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the flow guiding component in the embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of the base shell in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the overall internal cross-sectional structure in the embodiments of this application;

[0020] Figure 4 This is a schematic diagram of the rotating component in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the main body and base shell structure of the greenhouse in the embodiments of this application.

[0022] Reference numerals: 1. Base shell; 101. Ventilation opening; 2. Ventilation grille; 3. Dust cover; 4. Air guiding assembly; 401. Air guiding sleeve cone; 4011. Stopping end face; 4012. Support column end; 402. Flexible connecting pipe; 4021. Claw hook end; 4022. Bending surface; 403. Butt joint surface; 404. Hook-shaped end; 5. Rotating assembly; 501. Annular air guide; 502. Reserved cavity; 6. Blower fan blade; 8. Shaft; 9. Base; 901. Extension end; 10. Greenhouse main body.

[0023] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0028] Figure 1 This is a schematic diagram of the overall structure of the flow guiding component in the embodiments of this application. Figure 2 This is a schematic diagram of the disassembled structure of the base shell in an embodiment of this application. Figure 3This is a schematic diagram of the overall internal cross-sectional structure in an embodiment of this application. Figure 4 This is a schematic diagram of the rotating component in an embodiment of this application. Figure 5 This is a schematic diagram of the main body and base shell structure of the greenhouse in the embodiments of this application.

[0029] This application provides a ventilation device for greenhouse agriculture, such as... Figures 1 to 5 As shown, the ventilation device for the agricultural greenhouse includes a base shell 1, a ventilation grille 2, a flow guiding component 4, a rotating component 5, a blower blade 6, two shafts 8, a dust cover 3, and a base 9. The base shell 1 has ventilation openings 101 on its surface, and the ventilation grille 2 is located on one side of the base shell 1. The flow guiding component 4 is located on the other side of the base shell 1, and a cavity is formed inside the flow guiding component 4. The rotating component 5 is rotatably mounted at the end of the cavity near the base shell 1. The blower blade 6 is located at the end of the cavity near the base shell 1, and is situated on the side of the rotating component 5 away from the flow guiding component 4, with a gap between the rotating component 5 and the blower blade 6. The two shafts 8 pass through the flow guiding component 4 and connect to the rotating component 5, and are arranged along the diameter of the rotating component 5. The outer arc surface of the dust cover 3 has an abutment surface, and the dust cover 3 is fixedly mounted on the side of the ventilation grille 2 away from the base shell 1 via the abutment surface. The base 9 is mounted at the end of the flow guiding component 4 away from the base shell 1, and a through hole is provided on the surface of the base 9.

[0030] Specifically, the ventilation device for greenhouse agriculture provided in this embodiment uses a base shell 1 to provide the foundation for the installation of the entire device. Ventilation openings 101 are provided on the surface of the base shell 1 to allow airflow. The spacing between the grille bars of the ventilation grille 2 ensures sufficient ventilation volume and also provides initial rectification of the incoming air, allowing the air to flow more evenly to the blower blades 6, thus improving ventilation efficiency. The dust cover 3 not only effectively blocks external dust and impurities from entering the ventilation device, preventing wear on precision components such as the blower blades 6, but also, to some extent, prevents pests from entering the greenhouse. The base 9 provides the conditions for the installation of the entire device with the greenhouse. When it is necessary to adjust the airflow, the shaft 8 can be rotated, thereby driving the rotation of the rotating component 5. As the rotating component 5 rotates, it gradually covers the air outlet of the guide component 4. By controlling the coverage area of ​​the rotating component 5, the outflow of air can be precisely adjusted. For example, for some areas that are more sensitive to ventilation and suitable for a light breeze... For crops in suitable environments, such as certain orchid varieties, the airflow can be reduced by increasing the coverage of the rotating component 5 over the air outlet of the air guide component 4, creating a gentle and mild ventilation environment. For crops that grow vigorously and have a high demand for ventilation, the airflow can be increased by reducing the coverage of the rotating component 5 over the air outlet of the air guide component 4 to meet the growth needs of the crops. This also allows for timely adjustment of the size of the ventilation opening 101 when the temperature rises or falls rapidly, avoiding situations where manual operation may not be able to adjust the size of the ventilation opening 101 in time, resulting in large temperature fluctuations inside the greenhouse, which is not conducive to crop growth.

[0031] The ventilation device for facility agriculture greenhouses provided in this application embodiment, such as Figure 2 and Figure 3 As shown, the flow guiding component 4 may include a flow guiding sleeve cone 401 and a flexible connecting pipe 402; wherein, the flow guiding sleeve cone 401 is movably engaged with a conical structure on the base shell 1, the conical structure being disposed at the edge of the base shell 1 and extending in a direction close to the flow guiding sleeve cone 401; one end of the flexible connecting pipe 402 is movably engaged with the flow guiding sleeve cone 401, and the other end is connected to the base 9; wherein, the inner wall of the base shell 1 near the conical structure is a hollow structure, and the outer arc surface of the flow guiding component 4 abuts against the inner wall of the conical structure.

[0032] Optionally, the top of the outer arc surface of the guide sleeve cone 401 is provided with a stop end face 4011. The surface of the stop end face 4011 is in contact with the inner sidewall of the cone structure and is fixedly installed by bolts. The end of the guide sleeve cone 401 away from the stop end face 4011 is provided with a support column end 4012. The top of the outer arc surface of the support column end 4012 is provided with a mating surface 403. A hook-shaped end 404 is provided on one edge of the inner arc surface of the support column end 4012. The lower surface of the flexible connecting tube 402 abuts against the outer arc surface of the blower blade 6. One end of the flexible connecting tube 402 is provided with a claw hook end 4021. The inner arc surface of the claw hook end 4021 penetrates into the support column end 4012 and is attached to the mating surface 403 on one side. The other end of the flexible connecting tube 402 is provided with a bending surface 4022. One side surface of the bending surface 4022 is fixedly installed on the base 9. The extension end 901 on one side of the base 9 is sleeved in the inner arc surface of the flexible connecting tube 402.

[0033] Specifically, a base shell 1 is fixedly installed on one side of the entire blower blade 6. The base shell 1 is made of high-strength, corrosion-resistant engineering plastic, which not only has good structural stability and can effectively protect internal components, but also resists the erosion of the complex and humid environment inside the greenhouse. The guide cone and hook-shaped end can more effectively ventilate specific areas inside the greenhouse. In addition, the inner arc surface of the hook-shaped end is ground and polished to further reduce the resistance during airflow, ensuring that air can pass through smoothly and efficiently, thereby optimizing the performance of the entire facility agriculture greenhouse ventilation system and providing a more suitable growing environment for crops inside the greenhouse.

[0034] A ventilation grille 2 is installed on one side surface of the base shell 1. The ventilation grille 2 is made of aluminum alloy with special surface treatment, which has excellent rust resistance. The spacing of its grille bars can ensure sufficient ventilation volume and play a preliminary rectification role in the incoming air, so that the air flows more evenly to the blower blades 6 and improves ventilation efficiency.

[0035] On one side of the ventilation grille 2, a dust cover 3 is further installed. The dust cover 3 is made of fine stainless steel wire mesh, which can not only effectively block external dust and impurities from entering the ventilation device and avoid them from causing wear to precision parts such as the blower blades 6, but also prevent pests from entering the greenhouse to a certain extent. The ventilation grille 2 and the blower blades 6 are on the same plane. This ingenious layout design greatly optimizes the ventilation path. When the blower blades 6 are running, the outside air can pass smoothly through the dust cover 3 and the ventilation grille 2 and flow directly to the blower blades 6. Under the strong drive of the blower blades 6, it enters the greenhouse quickly and efficiently, realizing the effective replacement and circulation of air in the greenhouse.

[0036] Within the conical structure on one side of the base shell 1, a flow guide cone 401 is tightly fitted. Notably, the stop end face 4011 of the flow guide cone 401 is made of rubber, which possesses high elasticity and excellent frictional properties. This significantly increases the friction with the inner wall of the cone, resulting in a stable fit after installation. This effectively prevents displacement or shaking of the flow guide cone 401 during ventilation operation. To further ensure the robustness of the connection, high-strength bolts are used to fix the flow guide cone 401, ensuring the stability of the connection during long-term use. At the tail end of the flow guide cone 401, a support column end 4012 is provided. One end is securely connected to the flexible connecting pipe 402 via a connecting structure. The flexible connecting pipe 402 is made of highly flexible and weather-resistant silicone material, which not only effectively buffers vibrations caused by equipment operation but also adapts to different installation angles and spatial layouts to a certain extent, ensuring a smooth ventilation path.

[0037] It is worth noting that the guide cone 401 has a hook-shaped end 404 with an inner arc surface near one end of the blower blade 6. The hook-shaped end 404 precisely abuts against the blower blade 6, and its main function is to efficiently guide the airflow. Since the diameter of the hook-shaped end 404 is exactly the same as that of the blower blade 6, when the blower blade 6 is running at high speed, it can guide the airflow along the predetermined path to the maximum extent. On the one hand, it avoids the airflow from generating turbulence inside the device and improves ventilation efficiency. On the other hand, it makes the air entering the greenhouse more concentrated and directional, and can more effectively ventilate specific areas inside the greenhouse. In addition, the inner arc surface of the hook-shaped end 404 has been finely ground and polished, which further reduces the resistance during the airflow process and ensures that the air can pass through smoothly and efficiently, thereby optimizing the performance of the entire facility agriculture greenhouse ventilation device and providing a more suitable growing environment for crops inside the greenhouse.

[0038] The flexible connecting tube 402 is made of silicone, which has excellent flexibility and good elastic memory properties. Under the powerful suction of the blower fan blade 6, the outer arc surfaces on both sides of the flexible connecting tube 402 will contract inward due to air compression at the lower end. This contraction process is not disordered, but based on the principle of aerodynamics, effectively regulates the flow rate and velocity of the airflow to ensure that the air entering the guide sleeve cone 401 is more stable and uniform.

[0039] A servo motor is installed in the top shaft 8 of the guide sleeve cone 401. The servo motor has precise speed control and flexible steering adjustment function. When facing the different needs of different types of crops for ventilation volume and ventilation direction, the operator can conveniently control the rotation direction of the shaft 8 through the intelligent control panel.

[0040] In some embodiments, the rotating assembly may include an annular air guide 501, which is movably connected to the surface of the guide sleeve cone 401 via a shaft 8. A reserved cavity 502 is provided on both sides of the outer arc surface of the annular air guide 501. One side of the annular air guide 501 is an open structure. The annular air guide 501 and the guide sleeve cone 401 are in the same plane. The reserved cavity 502 is provided in the inner arc surface of the annular air guide 501 and the guide sleeve cone 401. One side of the reserved cavity 502 corresponds to the flexible connecting pipe 402. The greenhouse body 10 is fixedly installed on one side surface of the base 9 by bolts. The greenhouse body 10 has a cavity inside. The base shell 1 is fixedly installed on one side of the cavity. The blower fan blade 6 is placed inside the cavity.

[0041] When shaft 8 begins to rotate, the annular air guide 501 connected to it inside will rotate synchronously, ensuring efficient airflow guidance during rotation. As the annular air guide 501 rotates, one side of its cavity surface will gradually cover the air outlet of the guide sleeve cone 401. By controlling the coverage area of ​​the annular air guide 501, the airflow can be precisely adjusted. For example, for some crops that are sensitive to ventilation and suitable for a light breeze, such as certain orchid varieties, shaft 8 drives the annular air guide 501 to rotate. As the annular air guide 501 gradually increases its coverage of the air outlet of the guide sleeve cone 401, the effective flow area of ​​the air outlet gradually decreases. At this time, the blower blades 6 draw in air. When the incoming air passes through the guide sleeve cone 401, due to the obstruction of the outlet, some of the air is squeezed into the reserved cavity 502 for buffering. The reserved cavity 502, with its elastic buffering characteristics, pushes the air outward evenly, making the final exhaust airflow gentle. The edge of the annular air guide 501 has a gradually curved structure. When it begins to cover the air outlet, the curved area of ​​the edge first fits against the outer edge of the air outlet of the guide sleeve cone 401. As the rotation angle reaches 30°, the coverage area of ​​the annular air guide 501 reaches about 30% of the total area of ​​the air outlet. At this time, the air is blocked by the annular air guide 501 when it flows out, and some of the airflow is forced to change direction and enter the reserved cavity 502. Due to the spatial structure design of the reserved cavity 502, the airflow speed entering it is slowed down and the pressure is reduced. After being buffered, it flows out from the gap between the annular air guide 501 and the air outlet of the guide sleeve cone 401. Therefore, by increasing the coverage of the annular air guide 501 over the air outlet of the guide sleeve cone 401, the amount of air flowing out can be reduced, creating a gentle and mild ventilation environment. For crops that grow vigorously and have a high demand for ventilation, such as cucumbers, tomatoes and other fruits and vegetables, the coverage area of ​​the annular air guide 501 can be reduced during their rapid growth period to ensure sufficient air circulation and meet the needs of vigorous respiration and photosynthesis of crops. In this way, the entire ventilation device can achieve precise and intelligent ventilation control according to the characteristics of different crops, providing the most suitable air environment guarantee for the vigorous growth of various crops in the greenhouse.

[0042] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A facility agriculture greenhouse ventilation device, characterized by, include: The base shell (1) has ventilation openings (101) on its surface; Ventilation grille (2) is provided on one side of the base shell (1); A flow guiding component (4) is disposed on the other side of the base shell (1), and a cavity is formed inside the flow guiding component (4); A rotating assembly (5) is rotatably mounted at one end of the cavity near the base shell (1); The blower blade (6) is located at one end of the cavity near the base shell (1) and on the side of the rotating assembly (5) away from the flow guide assembly (4), and there is a gap between the rotating assembly (5) and the blower blade (6); Two shafts (8) pass through the flow guide assembly (4) and are connected to the rotating assembly (5), and the two shafts (8) are arranged along the diameter direction of the rotating assembly (5); The dust cover (3) has an abutting surface on its outer arc surface. The dust cover (3) is fixedly installed on the side of the ventilation grille (2) away from the base shell (1) through the abutting surface. A base (9) is installed at one end of the flow guide assembly (4) away from the base shell (1), and the surface of the base (9) is provided with through holes.

2. The facility agriculture greenhouse ventilating device according to claim 1, characterized in that, The flow guiding component (4) includes: The flow guide cone (401) is movably engaged with the cone structure on the base shell (1), the cone structure being disposed on the edge of the base shell (1) and extending in a direction close to the flow guide cone (401); The flexible connecting pipe (402) is movably engaged with the flow guide sleeve cone (401) at one end and connected to the base (9) at the other end; The base shell (1) is hollow near the inner wall of the conical structure, and the outer arc surface of the flow guiding component (4) abuts against the inner wall of the conical structure.

3. The facility agriculture greenhouse ventilation device according to claim 2, characterized in that, The top of the outer arc surface of the flow guide sleeve cone (401) is provided with a stop end face (4011). The surface of the stop end face (4011) is in contact with the inner side wall of the cone structure and is fixedly installed by bolts. The end of the flow guide sleeve cone (401) away from the stop end face (4011) is provided with a support column end (4012).

4. The facility agriculture greenhouse ventilation device according to claim 3, characterized by, The top of the outer arc surface of the support column end (4012) is provided with a mating surface (403), and a hook-shaped end (404) is provided at one edge of the inner arc surface of the support column end (4012). The lower surface of the hook-shaped end (404) abuts against the outer arc surface of the blower fan blade (6).

5. The facility agriculture greenhouse ventilation device according to claim 4, characterized in that, One end of the flexible connecting pipe (402) is provided with a claw hook end (4021), the inner arc surface of the claw hook end (4021) penetrates into the support column end (4012), and one side is attached to the mating surface (403).

6. The facility agriculture greenhouse ventilation device according to claim 5, characterized in that, The other end of the flexible connecting pipe (402) is provided with a bending surface (4022). One side surface of the bending surface (4022) is fixedly installed on the base (9). The extension end (901) on one side of the base (9) is sleeved in the inner arc surface of the flexible connecting pipe (402).

7. The facility agriculture greenhouse ventilation device according to claim 2, characterized by, The rotating component (5) includes: The annular air guide (501) is movably connected to the surface of the guide sleeve cone (401) via the shaft (8); The reserved cavity (502) is set on both sides of the outer arc surface of the annular air guide (501).

8. The facility agriculture greenhouse ventilation device according to claim 7, characterized in that, One side of the annular air guide (501) is open, and the annular air guide (501) and the flow guide cone (401) are in the same plane.

9. The facility agriculture greenhouse ventilation device according to claim 8, characterized in that, The annular air guide (501) and the inner arc surface of the flow guide sleeve cone (401) are provided with a reserved cavity (502), and one side of the reserved cavity (502) corresponds to the flexible connecting pipe (402).

10. The facility agriculture greenhouse ventilating device according to claim 1, characterized in that, The greenhouse body (10) is fixedly installed on one side surface of the base (9) by bolts. The greenhouse body (10) has a cavity inside. The base shell (1) is fixedly installed on one side of the cavity. The blower fan blade (6) is placed inside the cavity.

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