Ventilation device for greenhouse planting

Abstract

The utility model discloses a ventilation device for greenhouse planting, which comprises a ventilation pipe, a supporting plate and a rotating shaft are arranged in the ventilation pipe, a plurality of rotating blades and a plurality of fan blades are arranged on the rotating shaft, a driving motor, a driving shaft and a transmission shaft are arranged in the ventilation pipe, a conversion device is arranged between the driving shaft and the transmission shaft, and a first bevel gear is arranged on the transmission shaft. A second bevel gear is arranged on the rotating shaft, the conversion device comprises a fixed ring and a movable ring, fixed teeth are arranged on the fixed ring, movable teeth are arranged on the movable ring, and a moving device is arranged on one side of the movable ring. And when no wind exists outside the greenhouse, connection of the driving shaft and the transmission shaft is achieved through the conversion device, the driving motor drives the fan blades to rotate, then ventilation of the ventilation pipe is achieved through electric driving, and the adaptability and practicability of the ventilation device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of greenhouse planting, and more particularly to a ventilation device for greenhouse planting. Background Art

[0002] Greenhouse cultivation is a method of agricultural cultivation that creates a suitable planting environment by building greenhouses to control key factors for plant growth such as temperature, humidity, light and carbon dioxide concentration. This cultivation method can provide a stable growth environment in seasons or areas that are not suitable for plant growth, increase crop yields and improve product quality.

[0003] Ventilation in greenhouses is crucial for maintaining the crop growth environment. Traditional ventilation systems often rely on electrically driven fans, which increases energy consumption and operating costs. Some greenhouses optimize their structure to achieve natural ventilation through vents, skylights, and side windows. However, this ventilation method is limited by geographical location and climate conditions. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the problems existing in the prior art, the utility model provides a ventilation device for greenhouse planting to solve the technical problems of high energy consumption and increased operating costs of traditional ventilation devices mentioned in the background art.

[0006] (2) Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a ventilation device for greenhouse cultivation, comprising a ventilation pipe, a support plate inside the ventilation pipe, a rotating shaft on the support plate, a plurality of rotating blades at one end of the rotating shaft, and a fan blade at the other end, a drive motor inside the ventilation pipe, a drive shaft on the drive motor, a transmission shaft rotatably mounted on the drive shaft, a conversion device between the drive shaft and the transmission shaft, a first bevel gear on the transmission shaft, a second bevel gear on the rotating shaft, the conversion device comprising a fixed ring and a movable ring, the fixed ring being fixedly mounted on the transmission shaft and having fixed teeth circumferentially fixed, the movable ring being slidably mounted on the drive shaft and having movable teeth circumferentially slidably mounted, and a moving device on one side of the movable ring.

[0008] The utility model is further configured such that the moving device includes a moving cylinder, an output end of the moving cylinder is provided with a moving block, and the moving block is rotatably connected to the moving ring, so that the moving cylinder drives the moving ring to adjust the vertical height.

[0009] The utility model is further configured such that a connecting ring is provided on the moving block, and a connecting groove cooperating with the connecting ring is provided on the moving ring, so as to facilitate the rotational connection between the moving block and the moving ring.

[0010] The utility model is further configured such that a moving cavity is provided inside the moving tooth, a moving plate is provided at the bottom of the moving tooth in the moving cavity, a moving spring is provided between the moving plate and the moving cavity to facilitate moving the position of the moving tooth, and the moving spring provides an upward elastic force for the moving tooth.

[0011] The present invention is further configured such that the tops of the fixed teeth and the movable teeth are configured as inclined surfaces, so as to facilitate adjustment of the relative positions of the fixed teeth and the movable teeth.

[0012] The present invention is further configured such that the occlusal contact surface between the fixed teeth and the movable teeth is a vertical surface, thereby preventing the fixed teeth and the movable teeth from being dislocated.

[0013] The utility model is further configured such that an insect repellent lamp is provided on one side of the ventilation pipe to prevent insects from entering the greenhouse through the ventilation pipe and affecting the growth of greenhouse crops.

[0014] The utility model is further configured such that a filter is provided on one side of the ventilation pipe to prevent impurities in the air from entering the greenhouse.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a ventilation device for greenhouse planting, which has the following beneficial effects:

[0017] 1. When there is wind outside the greenhouse, the rotating blades drive the rotating shaft and fan blades to rotate, so that the ventilation pipe can guide the air into the greenhouse. No motor drive is required, which saves energy consumption. By setting up a filter, impurities in the air can be prevented from entering the greenhouse, thereby improving the practicality of the ventilation device.

[0018] 2. When there is no wind outside the greenhouse, the movable ring is driven to move by the movable cylinder, and the connection between the drive shaft and the transmission shaft is achieved through the engagement of the fixed teeth and the movable teeth. Then, the drive motor drives the fan blades to rotate through the cooperation of the first bevel gear and the second bevel gear, and then ventilation of the ventilation pipe is achieved through electric drive, thereby improving the adaptability and practicality of the ventilation device.

[0019] 3. By installing insect repellent lamps, insects can be prevented from entering the greenhouse through the ventilation pipes and affecting the growth of greenhouse crops. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a ventilation device for greenhouse planting in the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the ventilation duct in this utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of the conversion device in this utility model;

[0023] Figure 4 This is a schematic diagram of the matching structure of the fixed ring and the movable ring in the present utility model;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the movable ring in the present utility model.

[0025] In the figure: 1. Ventilation duct; 2. Support plate; 3. Rotating shaft; 4. Rotating blades; 5. Fan blades; 6. Driving motor; 7. Driving shaft; 8. Transmission shaft; 9. First bevel gear; 10. Second bevel gear; 11. Fixed ring; 12. Moving ring; 13. Fixed teeth; 14. Moving teeth; 15. Moving cylinder; 16. Moving block; 17. Connecting ring; 18. Connecting groove; 19. Moving cavity; 20. Moving plate; 21. Moving spring; 22. Insect repellent lamp; 23. Filter. DETAILED DESCRIPTION

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0029] See also Figure 1-5A ventilation device for greenhouse planting includes a ventilation pipe 1, a support plate 2 is provided in the ventilation pipe 1, a rotating shaft 3 is provided on the support plate 2, a plurality of rotating blades 4 are provided at one end of the rotating shaft 3, and a fan blade 5 is provided at the other end. A driving motor 6 is provided in the ventilation pipe 1, and a driving shaft 7 is provided on the driving motor 6. A transmission shaft 8 is rotatably provided on the driving shaft 7. A conversion device is provided between the driving shaft 7 and the transmission shaft 8, a first bevel gear 9 is provided on the transmission shaft 8, and a second bevel gear 10 is provided on the rotating shaft 3. The conversion device includes a fixed ring 11 and a movable ring 12. The fixed ring 11 is fixedly arranged on the transmission shaft 8 and is circumferentially fixed with fixed teeth 13. The movable ring 12 is slidably arranged on the drive shaft 7 and is circumferentially slidably provided with movable teeth 14. A movable device is provided on one side of the movable ring 12, an insect repellent lamp 22 is provided on one side of the ventilation pipe 1, and a filter screen 23 is provided on one side of the ventilation pipe 1.

[0030] In this embodiment, when there is wind outside the greenhouse, the conversion device is in a disconnected state, and the drive shaft 7 and the transmission shaft 8 are rotationally connected. The wind drives the rotating blades 4 to rotate, and the rotating blades 4 drive the rotating shaft 3 and the fan blades 5 to rotate. The fan blades 5 rotate to transport air to the ventilation pipe 1 and the greenhouse, and the impurities in the air are filtered out by the filter net 23, and the insect repellent lamp 22 is used to prevent mosquitoes from entering the greenhouse.

[0031] See also Figure 2-5 As an embodiment of the conversion device: the moving device includes a moving cylinder 15, a moving block 16 is provided at the output end of the moving cylinder 15, the moving block 16 is rotatably connected to the moving ring 12, a connecting ring 17 is provided on the moving block 16, and a connecting groove 18 cooperating with the connecting ring 17 is provided on the moving ring 12. A moving cavity 19 is provided inside the moving tooth 14, a moving plate 20 is provided at the bottom of the moving tooth 14 in the moving cavity 19, and a moving spring 21 is provided between the moving plate 20 and the moving cavity 19. The tops of the fixed teeth 13 and the moving teeth 14 are set as inclined surfaces, and the occlusal contact surface between the fixed teeth 13 and the moving teeth 14 is a vertical surface.

[0032] More specifically, when there is no wind outside, the moving cylinder 15 is manually started, and the moving cylinder 15 drives the connecting ring 17 to move upward through the moving block 16, and the connecting ring 17 drives the moving ring 12 to move upward. If the moving teeth 14 and the fixed teeth 13 are perfectly staggered, the moving teeth 14 and the fixed teeth 13 can be perfectly engaged. When the moving teeth 14 and the fixed teeth 13 partially overlap, the moving teeth 14 contact the fixed teeth 13, and the moving teeth 14 move downward to compress the moving plate 20 and the moving spring 21. The moving spring 21 gives the moving teeth 14 an upward elastic force, and the moving teeth 14 are in contact with the inclined surfaces of the fixed teeth 13, so that The fixed ring 11 and the fixed teeth 13 rotate slightly, so that the movable teeth 14 are clamped between the fixed teeth 13 under the action of the elastic force of the movable spring 21, thereby completing the connection work of the fixed ring 11 and the movable ring 12. By setting the occlusal contact surface between the fixed teeth 13 and the movable teeth 14 to a vertical surface, the fixed teeth 13 and the movable teeth 14 are prevented from being disengaged, and then the drive motor 6 is started. The motor shaft of the drive motor 6 drives the drive shaft 7 and the transmission shaft 8 to rotate. The transmission shaft 8 drives the rotating shaft 3 and the fan blades 5 to rotate through the cooperation of the first bevel gear 9 and the second bevel gear 10. The fan blades 5 rotate to deliver air to the ventilation pipe 1 and the greenhouse.

[0033] In summary, the overall equipment is in use or running: when in use, when there is wind outside the greenhouse, the conversion device is in a disconnected state, the drive shaft 7 and the transmission shaft 8 are rotationally connected, the wind drives the rotating blades 4 to rotate, and the rotating blades 4 drive the rotating shaft 3 and the fan blades 5 to rotate, and the fan blades 5 rotate to transport air to the ventilation pipe 1 and the greenhouse, and the impurities in the air are filtered out by the filter net 23, and the insect repellent lamp 22 is used to prevent mosquitoes from entering the greenhouse.

[0034] When there is no wind outside, the moving cylinder 15 is manually started, and the moving cylinder 15 drives the connecting ring 17 to move upward through the moving block 16, and the connecting ring 17 drives the moving ring 12 to move upward. If the moving teeth 14 and the fixed teeth 13 are perfectly staggered, the moving teeth 14 and the fixed teeth 13 can be perfectly engaged. When the moving teeth 14 and the fixed teeth 13 partially overlap, the moving teeth 14 contact the fixed teeth 13, and the moving teeth 14 move downward to compress the moving plate 20 and the moving spring 21. The moving spring 21 gives the moving teeth 14 an upward elastic force, and the moving teeth 14 are in contact with the inclined surface of the fixed teeth 13, so that the fixed ring 1 1 and the fixed teeth 13 rotate slightly, so that the mobile teeth 14 are clamped between the fixed teeth 13 under the action of the elastic force of the mobile spring 21, thereby completing the connection work of the fixed ring 11 and the mobile ring 12, and preventing the fixed teeth 13 and the mobile teeth 14 from being disengaged by setting the occlusal contact surface between the fixed teeth 13 and the mobile teeth 14 to a vertical surface, and then starting the drive motor 6, the motor shaft of the drive motor 6 drives the drive shaft 7 and the transmission shaft 8 to rotate, and the transmission shaft 8 drives the rotating shaft 3 and the fan blade 5 to rotate through the cooperation of the first bevel gear 9 and the second bevel gear 10, and the fan blade 5 rotates to transport air to the ventilation pipe 1 and the greenhouse for ventilation.

[0035] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A ventilation device for greenhouse planting, comprising a ventilation pipe (1), characterized in that: A support plate (2) is provided in the ventilation pipe (1), a rotating shaft (3) is provided on the support plate (2), a plurality of rotating blades (4) are provided at one end of the rotating shaft (3), and a fan blade (5) is provided at the other end. A driving motor (6) is provided in the ventilation pipe (1), a driving shaft (7) is provided on the driving motor (6), a transmission shaft (8) is rotatably provided on the driving shaft (7), a conversion device is provided between the driving shaft (7) and the transmission shaft (8), a first bevel gear (9) is provided on the transmission shaft (8), a second bevel gear (10) is provided on the rotating shaft (3), and the conversion device comprises a fixed ring (11) and a movable ring (12), the fixed ring (11) is fixedly arranged on the transmission shaft (8) and fixedly provided with fixed teeth (13) in a circumferential direction, the movable ring (12) is slidably arranged on the driving shaft (7) and provided with movable teeth (14) in a circumferentially slidable manner, and a movable device is provided on one side of the movable ring (12).

2. A greenhouse planting ventilation device according to claim 1, characterized in that: The moving device comprises a moving cylinder (15), the output end of the moving cylinder (15) is provided with a moving block (16), and the moving block (16) is rotatably connected to the moving ring (12).

3. A greenhouse planting ventilation device according to claim 2, characterized in that: The moving block (16) is provided with a connecting ring (17), and the moving ring (12) is provided with a connecting groove (18) that matches the connecting ring (17).

4. The greenhouse planting ventilation device according to claim 1, characterized in that: A moving cavity (19) is provided inside the moving tooth (14), a moving plate (20) is provided at the bottom of the moving tooth (14) in the moving cavity (19), and a moving spring (21) is provided between the moving plate (20) and the moving cavity (19).

5. The greenhouse planting ventilation device according to claim 1 is characterized by: Both sides of the top of the fixed teeth (13) and the movable teeth (14) are configured as inclined surfaces.

6. The greenhouse planting ventilation device according to claim 1, characterized in that: The occlusal contact surface between the fixed teeth (13) and the movable teeth (14) is a vertical surface.

7. The greenhouse planting ventilation device according to claim 1, characterized in that: An insect repellent lamp (22) is provided on one side of the ventilation pipe (1).

8. The greenhouse planting ventilation device according to claim 1, characterized in that: A filter screen (23) is provided on one side of the ventilation pipe (1).

Images