Novel ventilating window of sunlight greenhouse

Abstract

The utility model belongs to the technical field of agricultural machinery, and discloses a novel ventilating window of a sunlight greenhouse. Comprising a driving motor, spur racks, transmission shafts, sleeves and a window frame. The driving motor is connected with the gear box, and a gear in the gear box is meshed with the spur rack which is connected with the transmission shaft. The transmission shaft is fixedly connected with one ends of a plurality of sleeves respectively; the other end of the sleeve is fixedly connected with the window frame. Through sleeve combination, the opening and closing degree of the ventilation window is accurately controlled, the environment stability of the greenhouse is improved, the ventilation quantity is accurately controlled, the influence on thermal expansion and cold contraction of a greenhouse structure and equipment is reduced, and the service life of the greenhouse is prolonged. The opening and closing area of the ventilation window can be adjusted, the ventilation speed can be flexibly adjusted according to different weather conditions and crop requirements, and the ventilation speed is increased or delayed.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a novel ventilation window for a solar greenhouse. Background Technology

[0002] Greenhouses, as a crucial component of modern agriculture, play a vital role in controlling their internal environment for crop growth. Ventilation windows, as key equipment in greenhouse environmental control, directly impact ventilation efficiency, energy consumption, and the crop growth environment. Traditional greenhouse ventilation windows often employ manual or simple mechanical control methods, resulting in low ventilation efficiency, low control precision, and high maintenance costs. This invention utilizes a novel greenhouse window opening drive method, enabling precise control of ventilation windows, reducing energy consumption, improving the accuracy of greenhouse environmental control, and lowering maintenance costs.

[0003] (a) Existing greenhouse ventilation with film pulling is difficult to control precisely, and it is easy to have insufficient or excessive ventilation. When the film is pulled for ventilation, gaps are easily generated between the covering film and the greenhouse frame, resulting in air leakage and affecting the heat preservation performance of the greenhouse. Frequent pulling of the covering film will cause friction between the film and the frame, accelerating the aging and damage of the film.

[0004] (b) Existing greenhouse gear and rack window openings have high investment and maintenance costs. Precise installation is required, and the installation process is complex and time-consuming; gears, racks, motors, and other components require regular lubrication and maintenance, and after long-term use, they are prone to wear, deformation, or jamming, leading to failure of the ventilation window limit and damage to the motor.

[0005] The purpose of this invention is to reduce the cost of ventilation windows while making installation convenient, thereby improving the economy, reliability, durability, and safety of greenhouse ventilation windows. Utility Model Content

[0006] The technical solution of this utility model is as follows: A novel ventilation window for a solar greenhouse includes a drive motor 1, a rack 3, a transmission shaft 4, a sleeve 7, and a window frame 8; the drive motor 1 is connected to a gear box, the gear in the gear box meshes with the rack 3, and the rack 3 is connected to the transmission shaft 4; one end of a plurality of sleeves 7 are respectively connected to the transmission shaft 4; the other end of the sleeves 7 is fixedly connected to the window frame 8.

[0007] The sleeve 7 includes a thin sleeve 7-1, a thick sleeve 7-2, and a spring 7-3; one end of the thin sleeve 7-1 is connected to the drive shaft 4, and the other end of the thin sleeve 7-1 extends into one end of the thick sleeve 7-2; the other end of the thick sleeve 7-2 is connected to the window frame 8; the spring 7-3 is connected between one end of the thin sleeve 7-1 and the other end of the thick sleeve 7-2.

[0008] The drive motor 1 is fixed to the greenhouse frame.

[0009] One end of the sleeve 7 is fixed to the drive shaft 4 by a fixing piece 6; the door wheel 5 is connected to the greenhouse frame, and the drive shaft 4 moves on the door wheel 5.

[0010] The beneficial effects of this invention are as follows: Through the sleeve assembly, the opening and closing degree of the ventilation windows is precisely controlled, improving the stability of the greenhouse environment; precise control of ventilation volume reduces the impact of thermal expansion and contraction on the greenhouse structure and equipment, extending the greenhouse's service life. Flexible control: The adjustable opening and closing area of ​​the ventilation windows allows for flexible adjustment of the ventilation rate according to different weather conditions and crop needs, increasing or decreasing the ventilation speed. Reduced occurrence of pests and diseases: Excessive fluctuations in temperature and humidity within the greenhouse can easily lead to a decrease in crop immunity, increasing the likelihood of pests and diseases. Precise ventilation can enhance crop resistance and reduce the damage caused by pests and diseases. Low investment cost, simple structure, high reliability, economy, and durability; combined with prefabricated greenhouses, installation is quick and simple, suitable for large-scale promotion. Attached Figure Description

[0011] Figure 1 A schematic diagram of the greenhouse with a new type of ventilation window for solar greenhouses;

[0012] Figure 2 A schematic diagram of the new type of ventilation window in a solar greenhouse;

[0013] Figure 3 This is a schematic diagram of the casing assembly;

[0014] Figure 4 This is a diagram showing the connections of each part.

[0015] The meanings of each number are as follows: 1. Drive motor, 2. Fixing component, 3. Straight rack, 4. Drive shaft, 5. Door wheel, 6. Fixing plate, 7. Sleeve assembly, 7-1. Thin sleeve, 7-2. Coarse sleeve, 7-3. Spring, 8. Window frame. Detailed Implementation

[0016] The embodiments should describe in detail all necessary conditions required for a person skilled in the art to implement and reproduce this utility model, such as parameters, materials, equipment, tools, etc., as well as necessary specifications and models. If new substances or self-prepared materials are used, their manufacturing methods should also be described. When describing specific structures, each component should be labeled with its corresponding appendix. Figure 1 For proper labeling, it is recommended to use accompanying diagrams to explain the structure, principles, and relationships of actions, where possible.

[0017] A novel ventilation window for a solar greenhouse includes a drive motor 1, a rack and pinion 3, a drive shaft 4, a sleeve 7, and a window frame 8. The drive motor 1 is fixed to the greenhouse frame via a fastener 2 below the window on the east side of the greenhouse roof. The drive motor 1 is connected to a gearbox, where a gear meshes with the rack and pinion 3. The rotation of the gear drives the rack and pinion 3 to move, and the rack and pinion 3 is connected to the drive shaft 4. The drive shaft 4 can be a 32mm pipe (outer diameter pipe), running east-west, and positioned at the lower part of the greenhouse frame via door wheels 5, allowing for smooth movement. A fixing piece 6 is mounted on the drive shaft 4 to hinge the lower end of the thin sleeve 7-1. The lower end of the thick sleeve 7-2 covers the upper end of the thin sleeve 7-1, and a spring 7-3 connects the lower end of the thin sleeve 7-1 and the upper end of the thick sleeve 7-2 for cushioning. The upper end of the thick sleeve 7-2 is hinged to the window frame 8.

[0018] When drive motor 1 starts rotating forward, it drives to one side, pulling rack 3. Rack 3 transmits the pulling force to drive shaft 4. Drive shaft 4 moves along the fixed path of door wheel 5, pushing sleeve assembly 7 in turn. Spring 7-3 is compressed until the thick sleeve 7-2 is completely fitted over the thin sleeve 7-1. Sleeve assembly 7 is then under force and moves from a horizontal position to a vertical position. Window frame 8 is opened during the displacement of sleeve assembly 7, achieving the purpose of opening the ventilation window.

[0019] When drive motor 1 starts reversing, it drives to the other side, pushing rack 3. Rack 3 transmits thrust to drive shaft 4, which moves along the fixed path of door wheel 5, pulling sleeve assembly 7. The thin sleeve 7-1 is pulled, causing spring 7-3 to change its compression state. Due to the weight of window frame 8, the thick sleeve 7-2 moves, and sleeve assembly 7 is subjected to force, shifting from a vertical position to a horizontal position. During the displacement of sleeve assembly 7, window frame 8 is closed, achieving the purpose of closing the ventilation window.

[0020] Compared to rack and pinion window opening systems that require numerous racks, this invention only requires two round tubes and a spring. It boasts high reliability: the simple structure of this new type of ventilation window for greenhouses results in minimal wear and tear, making it simple and reliable. It also offers high safety: the spring within the sleeve assembly provides cushioning for the mechanical movement during opening and closing, ensuring a safety margin and significantly reducing the risk of damage such as broken windows or burnt-out motors caused by improper operation or limit switch failures, common with other window opening devices like rack and pinion systems. Finally, it is easy to install: all connections are prefabricated, and the window opening system has no complex structure, making installation simple and convenient.

[0021] The operation method of this embodiment:

[0022] 1. When the temperature is high and the humidity is high during the day, and CO2 needs to be replenished, the motor can be turned on to drive the sleeve assembly and open the window for ventilation;

[0023] 2. After ventilation is complete and the temperature and humidity inside the greenhouse drop to a suitable level for crops, the motor can be turned on in reverse to drive the sleeve assembly and close the windows for heat preservation and moisture retention.

[0024] The principle of this utility model:

[0025] 1. By using a motor drive and mechanical structure, the size and duration of the opening and closing area of ​​the greenhouse ventilation windows are controlled, thereby achieving precise control of the ventilation volume;

[0026] 2. By using a motor, the sliding trajectory of the transmission shaft is restricted through motor drive and door wheel fixation, and the motor driving force is transmitted to the sleeve assembly, thereby playing the role of opening and closing the window;

[0027] 3. By reducing the number of gears and racks, the window structure is simplified, improving the economy, safety, and reliability of greenhouse construction.

Claims

1. A new type of ventilation window for a solar greenhouse, characterized in that, The new ventilation window of the sunlight greenhouse comprises a driving motor (1), a straight rack (3), a transmission shaft (4), a sleeve (7) and a window frame (8); the driving motor (1) is connected with a gear box, the gear in the gear box is engaged with the straight rack (3), and the straight rack (3) is connected with the transmission shaft (4); one end of the transmission shaft (4) is connected with a plurality of sleeves (7) respectively; the other end of the sleeve (7) is fixedly connected with the window frame (8).

2. The novel ventilation window of a sun greenhouse according to claim 1, characterized in that, The sleeve (7) comprises a thin sleeve (7-1), a thick sleeve (7-2) and a spring (7-3); one end of the thin sleeve (7-1) is connected with the transmission shaft (4), the other end of the thin sleeve (7-1) extends into one end of the thick sleeve (7-2); the other end of the thick sleeve (7-2) is connected with the window frame (8); the spring (7-3) is connected between one end of the thin sleeve (7-1) and the other end of the thick sleeve (7-2).

3. The novel ventilation window of a solar greenhouse according to claim 1, characterized in that, The driving motor (1) is fixed on the greenhouse framework.

4. The novel ventilation window of a solar greenhouse according to claim 1, characterized in that, One end of the sleeve (7) is fixed on the transmission shaft (4) through a fixing sheet (6); a door wheel (5) is connected with the greenhouse framework, and the transmission shaft (4) moves on the door wheel (5).

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