Ventilation device of energy-saving multi-span greenhouse

Abstract

The utility model relates to the technical field of multi-span greenhouse ventilation, in particular to an energy-saving multi-span greenhouse ventilation device which comprises a ventilation fan and a lifting device, symmetrical fixing plates are arranged at the upper end of the side wall of the ventilation fan, the lifting device comprises a guide column, a gear, a rack and a lifting plate, a motor is arranged on the front side wall of one of the fixing plates, and the motor is connected with the lifting plate. Limiting frames are arranged at the two ends of the side wall of the ventilating fan, the rack penetrates through the limiting frames, the limiting frames are attached to the inner side wall of the rack and are in sliding connection with the inner side wall of the rack, a connecting rod is arranged on the back side wall of the lower end of the rack, the lower ends of the two side walls of the lifting plate are connected with the connecting rod, and the lifting plate is matched with the ventilating fan. The ventilation fan is attached to the inner side of the lifting plate and slidably connected with the inner side of the lifting plate, adjustment is conducted according to different weather or different wind power conditions, the growth effect of crops can be improved, the quality of the crops can be improved, the ventilation fan can be conveniently mounted and dismounted, the cleanliness of a greenhouse is improved, and great convenience is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation of multi-span greenhouses, in particular to a ventilation device for energy-saving multi-span greenhouses. Background Art

[0002] As we all know, the existing multi-span greenhouse is an upgraded version of the greenhouse. The original independent single-room greenhouse is connected with scientific means, reasonable design and excellent materials. During normal use, a certain degree of ventilation is usually carried out for the better growth of crops.

[0003] The ventilation device of the existing energy-saving multi-span greenhouse cannot adjust the size of the ventilation area according to different weather conditions when in use, which may affect the growth effect of crops, thereby reducing their output quality, and cannot filter dust or debris, resulting in high limitations in its use. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a ventilation device for an energy-saving multi-span greenhouse.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ventilation device for an energy-saving multi-span greenhouse, comprising a ventilation fan and a lifting device, wherein a symmetrical fixed plate is arranged on the upper end of the side wall of the ventilation fan, and the lifting device comprises a guide column, a gear, a rack and a lifting plate, wherein the guide columns all pass through the fixed plate, and a motor is arranged on the positive side wall of one of the fixed plates, and one of the guide columns is connected to the output end of the motor, and the guide column passes through the gear at one end away from the motor, and the rack is on the inner side of the gear, and the gear is meshed with the rack, and limit frames are arranged at both ends of the side walls of the ventilation fan, and the limit frame has no upper side wall, and the rack passes through the limit frame, and the limit frame is fitted and slidably connected to the inner side wall of the rack, and a connecting rod is arranged on the back side wall of the lower end of the rack, and the lower ends of the two side walls of the lifting plate are connected to the connecting rod, and the lifting plate is adapted to the ventilation fan, and the ventilation fan is fitted and slidably connected to the inner side of the lifting plate.

[0008] In order to facilitate the installation or disassembly of the ventilation fan, the utility model has the following improvements: a symmetrical installation slide is provided on the rear side wall of the ventilation fan, an installation slide is provided in the installation slide, the installation slide passes through the installation slide, the installation slide is slidably connected to the installation slide, a support rod is provided at the upper end of the installation slide, and a mounting plate is provided at the upper end of the support rod.

[0009] In order to facilitate the fixing of the device, the utility model has the following improvements: rivets are arranged on the mounting plate, and the rivets penetrate through the mounting plate.

[0010] In order to prevent the installation slide bar from sliding down in the installation slideway, the utility model has the following improvements: a limit block is arranged at the lower end of the installation slideway, and the limit block is adapted to the installation slide bar.

[0011] In order to prevent dust or debris from entering the greenhouse, the utility model has the following improvements: a dustproof net is arranged on the front side wall of the ventilation fan.

[0012] In order to prevent light from being blocked, the utility model has the following improvements: the lifting plate is made of transparent material.

[0013] In order to improve the energy-saving effect, the utility model has the following improvements: the ventilation fan is an energy-saving setting.

[0014] In order to conveniently control the position of the lifting plate, the utility model has the following improvements: the motor is a servo motor.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a ventilation device for an energy-saving multi-span greenhouse, which has the following beneficial effects:

[0017] The ventilation device of the energy-saving multi-span greenhouse is provided with a guide column and a gear. The guide column drives the gear to rotate, so that the rack can move with the rotation of the gear, thereby driving the lifting plate to move. The position of the lifting plate is adjusted to facilitate the control of the degree to which the lifting plate blocks the ventilation fan. It can be adjusted according to different weather or different wind strength conditions to improve the growth effect of crops and improve their quality. An installation slide and an installation slide bar are provided. The installation slide bar is slid in the installation slide rail to facilitate the installation and disassembly of the ventilation fan, and to facilitate inspection or maintenance. A dustproof net is provided to facilitate filtering of external dust or debris, thereby improving the cleanliness of the greenhouse. It is very convenient. An installation plate and rivets are provided to facilitate fixing the device to the greenhouse. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0020] Figure 3 This is a schematic diagram of the structure of the utility model from a third viewing angle;

[0021] Figure 4 It is an enlarged schematic diagram of structure A of the utility model.

[0022] In the figure: 1. Ventilation fan; 2. Fixing plate; 3. Gear; 4. Guide column; 5. Limit frame; 6. Support rod; 7. Mounting plate; 8. Motor; 9. Rivet; 10. Limit block; 11. Mounting slide; 12. Dust net; 13. Lifting plate; 14. Rack; 15. Mounting slide. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 A ventilation device for an energy-saving multi-span greenhouse comprises a ventilation fan 1 and a lifting device, wherein a symmetrical fixed plate 2 is arranged on the upper end of the side wall of the ventilation fan 1, and the lifting device comprises a guide column 4, a gear 3, a rack 14 and a lifting plate 13, wherein the guide columns 4 all pass through the fixed plate 2, and a motor 8 is arranged on the positive side wall of one of the fixed plates 2, and one of the guide columns 4 is connected to the output end of the motor 8, and the end of the guide column 4 away from the motor 8 passes through the gear 3, and the rack 14 is on the inner side of the gear 3, and the gear 3 is meshed with the rack 14, and limit frames 5 are arranged at both ends of the side walls of the ventilation fan 1, and the limit frames 5 have no upper side walls, and the rack 14 passes through the limit frames 5, and the limit frames 5 are fitted and slidably connected to the inner wall of the rack 14, and the rack A connecting rod is provided on the back side wall at the lower end of 14, and the lower ends of the two side walls of the lifting plate 13 are connected to the connecting rod, the lifting plate 13 is adapted to the ventilation fan 1, and the ventilation fan 1 is fitted and slidably connected to the inner side of the lifting plate 13, and a symmetrical installation slide 11 is provided on the rear side wall of the ventilation fan 1, and an installation slide bar 15 is provided in the installation slide 11, and the installation slide bar 15 passes through the installation slide 11, and the installation slide 11 is slidably connected to the installation slide bar 15, and a support rod 6 is provided on the upper end of the support rod 6, and a mounting plate 7 is provided on the mounting plate 7. A rivet 9 is provided on the mounting plate 7, and the rivet 9 passes through the mounting plate 7, and a limit block 10 is provided at the lower end of the installation slide 11, and the limit block 10 is adapted to the installation slide bar 15.

[0025] During use, the device is fixed to the side wall of the greenhouse with rivets 9, and then the installation slide bar 15 is aligned with the installation slideway 11, and it is slid in with force to make the installation slide bar 15 pass through the installation slideway 11 for installation. The limit block 10 can support the installation slide bar 15 to prevent it from slipping. When the wind speed is appropriate and suitable for ventilation, the motor 8 is started, and the output of the motor 8 drives the guide column 4 to rotate, and the gear 3 rotates with the guide column 4. Since the gear 3 is meshed with the rack 14, the rack 14 moves with the rotation of the gear 3, and the rack 14 slides in the limit frame 5, driving the lifting plate 13 to move and lift the lifting plate 13 upward. At this time, the ventilation fan 1 leaks out for ventilation, and then the ventilation fan 1 is started to speed up the ventilation speed. When it is inconvenient to ventilate in rainy weather, the motor 8 is started according to the above operation, and the moving plate is lowered until it completely covers the ventilation fan 1 for sealing to prevent the outside weather from affecting the growth of crops.

[0026] In actual use, it is necessary to prevent dust from entering the greenhouse at the ventilation fan 1. In order to meet the above requirement, in this embodiment, a dustproof net 12 is provided on the front side wall of the ventilation fan 1.

[0027] In actual use, it is necessary to improve the lighting to prevent the lifting plate 13 from affecting the lighting after it is lowered. In order to meet the above requirements, in this embodiment, the lifting plate 13 is made of transparent material.

[0028] In actual use, it is necessary to facilitate energy conservation and emission reduction. In order to meet the above requirements, in this embodiment, the ventilation fan 1 is an energy-saving setting.

[0029] In actual use, it is necessary to conveniently control the position of the lifting plate 13. In order to meet the above requirement, in this embodiment, the motor 8 is a servo motor.

[0030] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ventilation device for an energy-saving multi-span greenhouse, comprising a ventilation fan (1) and a lifting device, characterized in that: A symmetrical fixing plate (2) is arranged at the upper end of the side wall of the ventilation fan (1); the lifting device comprises a guide column (4), a gear (3), a rack (14) and a lifting plate (13); the guide columns (4) all pass through the fixing plate (2); a motor (8) is arranged on the positive side wall of one of the fixing plates (2); one of the guide columns (4) is connected to the output end of the motor (8); the end of the guide column (4) away from the motor (8) passes through the gear (3); the rack (14) is on the inner side of the gear (3); the gear (3) is connected to the output end of the motor (8); The rack (14) is meshed, and limit frames (5) are arranged at both ends of the side walls of the ventilation fan (1). The limit frames (5) have no upper side walls. The rack (14) passes through the limit frames (5). The limit frames (5) are fitted with and slidably connected to the inner side walls of the rack (14). A connecting rod is arranged on the back side wall of the lower end of the rack (14). The lower ends of the two side walls of the lifting plate (13) are connected to the connecting rod. The lifting plate (13) is adapted to the ventilation fan (1), and the ventilation fan (1) is fitted with and slidably connected to the inner side of the lifting plate (13).

2. The ventilation device for an energy-saving multi-span greenhouse according to claim 1, characterized in that: The rear side wall of the ventilation fan (1) is provided with a symmetrical installation slideway (11), and an installation slide bar (15) is provided inside the installation slideway (11). The installation slide bar (15) passes through the installation slideway (11), and the installation slideway (11) is slidably connected to the installation slide bar (15). A support rod (6) is provided at the upper end of the installation slide bar (15), and a mounting plate (7) is provided at the upper end of the support rod (6).

3. The ventilation device for an energy-saving multi-span greenhouse according to claim 2, characterized in that: The mounting plate (7) is provided with a rivet (9), and the rivet (9) penetrates the mounting plate (7).

4. The ventilation device for an energy-saving multi-span greenhouse according to claim 3, characterized in that: A limit block (10) is provided at the lower end of the installation slideway (11), and the limit block (10) is adapted to the installation slide bar (15).

5. The ventilation device for an energy-saving multi-span greenhouse according to claim 4, characterized in that: A dustproof net (12) is provided on the front side wall of the ventilation fan (1).

6. The ventilation device for an energy-saving multi-span greenhouse according to claim 5, characterized in that: The lifting plate (13) is made of transparent material.

7. The ventilation device for an energy-saving multi-span greenhouse according to claim 6, characterized in that: The ventilation fan (1) is an energy-saving device.

8. The ventilation device for an energy-saving multi-span greenhouse according to claim 7, characterized in that: The motor (8) is a servo motor.

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