Agricultural greenhouse ventilation system

By combining the air supply structure and auxiliary gas pipes, turbulent airflow and uniform diffusion are formed, solving the problems of uneven gas distribution and high escape rate in agricultural greenhouse ventilation systems, and achieving efficient ventilation and gas replenishment in the greenhouse.

CN224219035UActive Publication Date: 2026-05-12CHONGQING KEZHENG HUAGUO SEEDLING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING KEZHENG HUAGUO SEEDLING CO LTD
Filing Date
2025-05-22
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing agricultural greenhouse ventilation systems are ineffective at providing adequate ventilation and failing to supply the necessary gases to the plants inside the greenhouse.

Method used

The system employs a combination design of air supply structure and auxiliary gas pipe. The air supply structure uses multiple sets of tilting drive motors to rotate the air supply blades and create turbulent airflow. The auxiliary gas pipe precisely delivers the gas into the greenhouse and diffuses it through turbulence. The steel support frame structure enables ventilation without dead angles and uniform gas distribution.

Benefits of technology

It achieves efficient ventilation and air exchange inside the greenhouse, significantly improves the uniformity of airflow coverage and gas utilization efficiency, solves the problems of uneven gas distribution and high escape rate, and increases gas utilization rate by more than 40%.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an agricultural greenhouse ventilation system which comprises an air supply structure, an air scattering frame, an installation outer edge, an installation foundation frame, installation screw holes, an impurity prevention net and an auxiliary gas pipe. The air supply structure is fixedly installed in a greenhouse wall, and the air scattering frame is fixedly installed at the inner end of the air supply structure; the mounting outer edge is fixedly mounted at the outer end of the air supply structure; the mounting base frame is fixedly mounted on the outer side of the mounting outer edge through the mounting screw holes and bolts; an impurity prevention net is fixedly mounted in the mounting foundation frame, and an auxiliary gas pipe is fixedly mounted in the middle of the impurity prevention net; due to the arrangement of the air supply structure and the auxiliary gas pipe, ventilation of the greenhouse can be effectively achieved, and needed gas can be provided for plants in the greenhouse according to needs.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural greenhouse technology, and in particular to an agricultural greenhouse ventilation system. Background Technology

[0002] In modern facility agriculture, greenhouses, as important agricultural production facilities, possess core value in creating optimal growth conditions for crops through precise control of their internal microenvironment. With the acceleration of agricultural modernization and the popularization of precision agriculture concepts, environmental control technology has become a key factor determining the economic benefits of greenhouse cultivation. Among these, ventilation systems and carbon dioxide replenishment technology, as the two pillars of environmental control, directly affect crop photosynthetic efficiency, pest and disease incidence, and ultimately, yield and quality. However, existing agricultural greenhouse ventilation systems still suffer from ineffective ventilation and the inability to provide the necessary gases to the plants inside the greenhouse as required.

[0003] Therefore, it is essential to invent a ventilation system for agricultural greenhouses. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an agricultural greenhouse ventilation system, resolving the issue that existing agricultural greenhouse ventilation systems still fail to effectively ventilate the greenhouse and provide the necessary gases to the plants inside. The agricultural greenhouse ventilation system includes an air supply structure, a diffuser frame, an outer mounting edge, a mounting base frame, mounting screw holes, a filter screen, and an auxiliary gas pipe. The air supply structure is fixedly installed inside the greenhouse wall, and the diffuser frame is fixedly installed at the inner end of the air supply structure. The outer mounting edge is fixedly installed at the outer end of the air supply structure. The mounting base frame is fixedly installed on the outer side of the outer mounting edge via mounting screw holes and bolts. The filter screen is fixedly installed inside the mounting base frame, and the auxiliary gas pipe is fixedly installed in the middle of the filter screen.

[0005] The air supply structure includes a support frame, a drive motor, and air supply blades. The support frame is fixedly installed inside the greenhouse wall, and the drive motor is fixedly installed on the inner wall of the support frame. The air supply blades are fixedly installed on the output shaft of the drive motor.

[0006] The auxiliary gas pipe includes a base intermediate plate, a support base, an inlet pipe and a gas input pipe. The base intermediate plate is fixedly installed in the middle position of the impurity prevention net, and the support base is fixedly installed inside the base intermediate plate. The inlet pipe and the gas input pipe are connected end to end and fixedly installed inside the support base.

[0007] The internal support frame of the air supply structure is a steel metal cylinder, and the drive motor consists of several motors, which are evenly distributed in a ring inside the support frame. The drive motors are tilted at different angles, but the air outlet direction is always towards the inside of the greenhouse. The air supply blades are driven to rotate by the drive motors.

[0008] The auxiliary gas pipe is located in the middle of the ring-shaped drive motor, and the inlet pipe can be connected to the carbon dioxide cylinder through the interface. This gas inlet pipe transmits carbon dioxide gas into the greenhouse and disperses it into the greenhouse through the turbulent airflow generated by the air supply structure.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The air supply structure of this utility model uses multiple sets of tilting drive motors within the support frame to rotate the air supply blades, creating turbulent airflow. This achieves ventilation and air exchange, and actively regulates the temperature and humidity inside the shed through airflow circulation. It can also work in conjunction with auxiliary gas pipes to evenly diffuse carbon dioxide, using turbulence to prevent localized gas accumulation. The ring-shaped multi-motor design achieves ventilation without dead zones, and its steel support frame structure combines protection and stability. Compared to traditional fans, this structure significantly improves the uniformity of airflow coverage and gas utilization efficiency.

[0011] 2. The auxiliary gas pipe of this utility model, through the fixed structure of the foundation intermediate plate and the support base, accurately delivers the external gas connected to the inlet pipe to the inside of the greenhouse through the gas input pipe, and achieves rapid and uniform diffusion through the turbulence generated by the air supply structure, thereby solving the problems of uneven distribution and high loss rate of traditional gas replenishment methods. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the air supply structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the auxiliary gas tube of this utility model.

[0015] In the picture:

[0016] Air supply structure 1, support frame 11, drive motor 12, air supply fan blade 13, air diffuser frame 2, mounting outer edge 3, mounting base frame 4, mounting screw hole 5, impurity screen 6, auxiliary gas pipe 7, base intermediate plate 71, support base 72, inlet pipe 73, gas input pipe 74. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0018] As attached Figure 1 To be continued Figure 3 As shown.

[0019] This utility model provides an agricultural greenhouse ventilation system, comprising an air supply structure 1, an air diffuser frame 2, an outer mounting edge 3, an outer mounting base frame 4, mounting screw holes 5, a dust filter 6, and an auxiliary gas pipe 7. The air supply structure 1 is fixedly installed inside the greenhouse wall, and the air diffuser frame 2 is fixedly installed at the inner end of the air supply structure 1. The outer mounting edge 3 is fixedly installed at the outer end of the air supply structure 1. The outer mounting base frame 4 is fixedly installed on the outer side of the outer mounting edge 3 via mounting screw holes 5 and bolts. The dust filter 6 is fixedly installed inside the outer mounting base frame 4, and the auxiliary gas pipe 7 is fixedly installed in the middle position of the dust filter 6.

[0020] The air supply structure 1 includes a support frame 11, a drive motor 12, and an air supply fan blade 13. The support frame 11 is fixedly installed inside the greenhouse wall, and the drive motor 12 is fixedly installed on the inner wall of the support frame 11. The air supply fan blade 13 is fixedly installed on the output shaft of the drive motor 12.

[0021] The auxiliary gas pipe 7 includes a base intermediate plate 71, a support base 72, an inlet pipe 73, and a gas input pipe 74. The base intermediate plate 71 is fixedly installed in the middle position of the impurity prevention net 6, and the support base 72 is fixedly installed inside the base intermediate plate 71. The inlet pipe 73 and the gas input pipe 74 are connected end to end and fixedly installed inside the support base 72.

[0022] The support frame 11 inside the air supply structure 1 is a steel metal cylinder, and the drive motor 12 consists of several motors, which are evenly distributed in a ring inside the support frame 11. The drive motors 12 are tilted at different angles, and the tilt angles between the drive motors 12 are different, but the air outlet direction is all towards the inside of the greenhouse; the air supply blades 13 are driven to rotate by the drive motors 12.

[0023] The auxiliary gas pipe 7 is located in the middle of the ring-shaped drive motor 12, and the inlet pipe 73 can be connected to the carbon dioxide cylinder through the interface. The gas input pipe 74 transmits carbon dioxide gas into the greenhouse and disperses it into the greenhouse through the turbulent airflow generated by the air supply structure 1.

[0024] This equipment generates turbulent airflow through a ring-shaped multi-motor drive system in the air supply structure 1, which, together with the auxiliary gas pipe 7, enables efficient delivery and diffusion of carbon dioxide. The impurity screen 6 ensures clean air path, while the mounting base frame 4 and mounting screw holes 5 provide modular support. The whole system forms a multi-functional system of forced ventilation, precise air delivery, and uniform diffusion, improving gas utilization by more than 40% compared to traditional systems.

[0025] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A ventilation system for agricultural greenhouses, characterized in that: The system includes an air supply structure (1), a diffuser frame (2), an outer mounting edge (3), a mounting base frame (4), mounting screw holes (5), a screen for removing impurities (6), and an auxiliary gas pipe (7). The air supply structure (1) is fixedly installed inside the greenhouse wall, and the diffuser frame (2) is fixedly installed at the inner end of the air supply structure (1). The outer mounting edge (3) is fixedly installed at the outer end of the air supply structure (1). The mounting base frame (4) is fixedly installed on the outer side of the outer mounting edge (3) through the mounting screw holes (5) and bolts. The screen for removing impurities (6) is fixedly installed inside the mounting base frame (4), and the auxiliary gas pipe (7) is fixedly installed in the middle position of the screen for removing impurities (6).

2. The agricultural greenhouse ventilation system as described in claim 1, characterized in that: The air supply structure (1) includes a support frame (11), a drive motor (12) and an air supply fan (13). The support frame (11) is fixedly installed inside the greenhouse wall, and the drive motor (12) is fixedly installed on the inner wall of the support frame (11). The air supply fan (13) is fixedly installed on the output shaft of the drive motor (12).

3. The agricultural greenhouse ventilation system as described in claim 1, characterized in that: The auxiliary gas pipe (7) includes a base intermediate plate (71), a support base (72), an inlet pipe (73) and a gas input pipe (74). The base intermediate plate (71) is fixedly installed in the middle position of the impurity net (6), and the support base (72) is fixedly installed inside the base intermediate plate (71). The inlet pipe (73) and the gas input pipe (74) are connected end to end and fixedly installed inside the support base (72).

4. The agricultural greenhouse ventilation system as described in claim 2, characterized in that: The support frame (11) inside the air supply structure (1) is a steel metal cylinder, and the drive motor (12) consists of several motors, which are evenly distributed in a ring inside the support frame (11). The drive motors (12) are tilted at different angles. The tilt angles of the drive motors (12) are different, but the air outlet direction is towards the inside of the greenhouse. The air supply fan blades (13) are driven to rotate by the drive motors (12).

5. The agricultural greenhouse ventilation system as described in claim 3, characterized in that: The auxiliary gas pipe (7) is located in the middle of the ring-shaped drive motor (12), and the inlet pipe (73) can be connected to the carbon dioxide cylinder through the interface. The gas input pipe (74) transmits carbon dioxide gas into the greenhouse and disperses it into the greenhouse through the turbulent airflow generated by the air supply structure (1).