Ventilation device for greenhouse

Abstract

The ventilation device for the greenhouse comprises a greenhouse body, the left side and the right side of the greenhouse body are each provided with a set of ventilation mechanism, each ventilation mechanism comprises a ventilation fan, a greenhouse side frame and a ventilation plate, the ventilation fans are installed in the middles of the ventilation plates, the greenhouse side frames are arranged on the outer sides of the ventilation plates, and screw grooves are formed in the upper portions of the greenhouse side frames. A threaded rod groove is formed in the upper portion of the greenhouse side frame, a main sliding block is installed in the threaded rod groove, a threaded hole is formed in the middle of the main sliding block, a driving threaded rod is connected into the threaded hole through threads, and a servo motor is installed on the left side of the upper portion of the greenhouse side frame. Therefore, different areas in the greenhouse can be conveniently and quickly ventilated, and the ventilation efficiency is improved. Therefore, vitiated air can be quickly exhausted, fresh air can be quickly introduced, ventilation dead angles can be reduced, and the risk of breeding of plant diseases and insect pests can be reduced.

Description

Technical Field

[0001] The utility model belongs to the field of greenhouses, and in particular relates to a ventilation device for greenhouses. Background Art

[0002] Greenhouses currently use fans for ventilation, which play a vital role in greenhouse environmental control.

[0003] However, existing fans are usually fixed in a certain position, which greatly limits the flexibility of ventilation. Different areas in a greenhouse may have different temperature, humidity and air quality conditions. When a specific area needs to be ventilated quickly to adjust the local environment, a fan in a fixed position cannot meet this demand. For example, when high temperature and high humidity occur in certain local areas, fresh air cannot be delivered to the area in a timely and effective manner, resulting in adverse effects on crop growth in the area. Secondly, fans that are difficult to adjust reduce ventilation efficiency. Since the position of the fan cannot be adjusted according to actual conditions, ventilation often only covers a limited range. This may lead to over-ventilation in some areas, while other areas do not receive sufficient ventilation.

[0004] In order to improve the environmental quality and crop yield of greenhouses, it is necessary to develop a fan that can flexibly adjust its position to meet the ventilation needs of different areas. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a ventilation device for a greenhouse to solve the problems raised in the above-mentioned background technology.

[0006] The utility model is realized by the following technical solutions: a ventilation device for a greenhouse, comprising a greenhouse main body, a group of ventilation mechanisms are respectively provided on the left and right sides of the greenhouse main body, and the ventilation mechanisms include a ventilation fan, a greenhouse side frame and a ventilation plate;

[0007] A ventilation fan is installed in the middle of the ventilation plate, the greenhouse side frame is arranged on the outside of the ventilation plate, a screw groove is opened above the greenhouse side frame, a main slider is installed inside the screw groove, a threaded hole is opened in the middle of the main slider, and a driving screw is connected to the threaded hole through a thread;

[0008] A servo motor is installed on the left side above the side frame of the greenhouse, and a telescopic shielding curtain is connected to the left and right sides of the ventilation plate through a linkage vertical rod.

[0009] As a preferred embodiment, one end of the two telescopic screens away from the linkage vertical rod is respectively connected to a fixed vertical rod, the fixed vertical rod is fixed to the side frame of the greenhouse, and the telescopic screens are accordion-type screens.

[0010] As a preferred embodiment, a bottom chute is opened under the side frame of the greenhouse, an auxiliary slider is installed in the bottom chute, and the upper end of the auxiliary slider and the lower end of the main slider are both connected to the ventilation plate.

[0011] As a preferred embodiment, the output shaft of the servo motor is connected to the driving screw, the right end of the driving screw is connected to a bearing, and the bearing is installed on the right side inside the screw groove.

[0012] As a preferred embodiment, the positions of the two groups of ventilation mechanisms are symmetrical to each other, wherein the ventilation fans on one side are air intake fans, and the ventilation fans on the other side are air exhaust fans.

[0013] As a preferred embodiment, a magnet ring is installed on the front surface of the ventilation plate, and an iron closing plate is provided in front of the magnet ring. The magnet ring attracts the closing plate through magnetic force.

[0014] After adopting the above technical solution, the beneficial effects of the utility model are:

[0015] 1. By setting up a ventilation mechanism, the position of the ventilation fan can be flexibly adjusted, so that different areas inside the greenhouse can be quickly ventilated, improving ventilation efficiency. No longer restricted by a fixed position, this can not only quickly discharge dirty air and introduce fresh air, but also reduce ventilation dead corners and reduce the risk of pests and diseases breeding.

[0016] 2. By setting up a telescopic shade curtain and a linkage pole, when the ventilation fan adjusts its position, it can drive the telescopic shade curtain to extend or retract, thereby blocking the rest of the greenhouse side frame and preventing other non-ventilated areas from being exposed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of a ventilation device for a greenhouse.

[0019] Figure 2 This is a schematic structural diagram of a ventilation mechanism in a ventilation device for a greenhouse according to the utility model, viewed from a top view.

[0020] Figure 3 This is a schematic structural diagram of a ventilation mechanism in a ventilation device for a greenhouse according to the utility model, viewed from above.

[0021] In the figure, 1. Greenhouse main body; 2. Ventilation mechanism; 21. Greenhouse side frame; 22. Screw groove; 23. Drive screw; 24. Main slider; 25. Ventilation plate; 26. Retractable shade curtain; 27. Servo motor; 28. Fixed vertical pole; 29. Linkage vertical pole; 210. Bottom slide; 211. Auxiliary slider; 212. Ventilation fan; 3. Closing plate; 31. Magnet ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 3 The utility model provides a technical solution: a ventilation device for a greenhouse, comprising a greenhouse body 1, a set of ventilation mechanisms 2 are respectively provided on the left and right sides of the greenhouse body 1, and the ventilation mechanisms 2 include a ventilation fan 212, a greenhouse side frame 21 and a ventilation plate 25;

[0024] A ventilation fan 212 is installed in the middle of the ventilation plate 25, and the greenhouse side frame 21 is arranged outside the ventilation plate 25. A screw groove 22 is opened above the greenhouse side frame 21, and a main slider 24 is installed inside the screw groove 22. A threaded hole is opened in the middle of the main slider 24, and a driving screw 23 is connected to the threaded hole through a thread.

[0025] A servo motor 27 is installed on the left side above the greenhouse side frame 21, and a telescopic shielding curtain 26 is connected to the left and right sides of the ventilation plate 25 through a linkage rod 29 respectively.

[0026] One end of the two telescopic shielding curtains 26 away from the linkage vertical rod 29 is respectively connected to the fixed vertical rod 28, and the fixed vertical rod 28 is fixed to the greenhouse side frame 21. The telescopic shielding curtains 26 are accordion-type shielding curtains.

[0027] A bottom chute is provided below the greenhouse side frame 21; 210, bottom chute; an auxiliary slider 211 is installed in 210, and the upper end of the auxiliary slider 211 and the lower end of the main slider 24 are both connected to the ventilation plate 25.

[0028] The output shaft of the servo motor 27 is connected to the driving screw 23 . The right end of the driving screw 23 is connected to a bearing, which is installed on the right side of the screw groove 22 .

[0029] The positions of the two sets of ventilation mechanisms 2 are symmetrical to each other, wherein the ventilation fan 212 on one side is an air intake fan, and the ventilation fan 212 on the other side is an exhaust fan.

[0030] See also Figures 1 to 3 As the first embodiment of the present utility model: in actual use, the servo motor 27 can drive the driving screw 23 to rotate, and the driving screw 23 can drive the main slider 24 to slide in the screw groove 22 through the threaded hole. When the main slider 24 slides, it can drive the ventilation plate 25 to move in the greenhouse side frame 21. Through the forward and reverse rotation of the servo motor 27, the ventilation fan 212 can be driven to move laterally in the greenhouse side frame 21 according to actual ventilation needs, and the use position can be flexibly adjusted. When the ventilation plate 25 moves, it can drive the auxiliary slider 211 to slide along the bottom slide groove 210 path, thereby improving the sliding stability of the ventilation plate 25. During adjustment, the positions of the ventilation fans 212 of the two sets of ventilation mechanisms 2 can correspond to each other, and then the ventilation fans 212 are started. The ventilation fans 212 on one side draw external air into the interior of the greenhouse main body 1, and the ventilation fans 212 on the other side draw air inside the greenhouse main body 1 and discharge it outward, so that the air circulates quickly inside the greenhouse main body 1, thereby achieving rapid ventilation of specific areas inside the greenhouse main body 1.

[0031] See also Figures 1 to 3 , as the second embodiment of the present utility model: According to the further elaboration of the first embodiment, in the process of the ventilation plate 25 moving horizontally to adjust the use position, the ventilation plate 25 can drive the telescopic shielding curtain 26 on one side to stretch through the linkage vertical rod 29, and squeeze the telescopic shielding curtain 26 on the other side through the linkage vertical rod 29 on the other side to compress it, thereby blocking other non-ventilated areas, thereby preventing other non-ventilated areas of the greenhouse main body 1 from being exposed to the outside and causing adverse effects such as excessive light.

[0032] A magnet ring 31 is installed on the front surface of the ventilation plate 25. An iron closing plate 3 is provided in front of the magnet ring 31. The magnet ring 31 attracts the closing plate 3 by magnetic force.

[0033] When ventilation is not required, the closing plate 3 is installed by magnetically adsorbing the magnet ring 31 to close the ventilation plate 25, preventing other debris from entering the interior of the greenhouse body 1 through the ventilation plate 25, and it can be removed before ventilation.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ventilation device for a greenhouse, comprising a greenhouse body (1), characterized in that: A set of ventilation mechanisms (2) are respectively provided on the left and right sides of the greenhouse body (1), and the ventilation mechanisms (2) include a ventilation fan (212), a greenhouse side frame (21) and a ventilation plate (25); A ventilation fan (212) is installed in the middle of the ventilation plate (25), the greenhouse side frame (21) is arranged outside the ventilation plate (25), a screw groove (22) is opened above the greenhouse side frame (21), a main slider (24) is installed inside the screw groove (22), a threaded hole is opened in the middle of the main slider (24), and a driving screw (23) is connected to the threaded hole through a thread; A servo motor (27) is installed on the left side above the greenhouse side frame (21), and a telescopic shielding curtain (26) is connected to the left and right sides of the ventilation plate (25) through a linkage vertical rod (29).

2. A greenhouse ventilation device according to claim 1, characterized in that: One end of the two telescopic shielding curtains (26) away from the linkage vertical rod (29) is respectively connected to a fixed vertical rod (28), and the fixed vertical rod (28) is fixed to the greenhouse side frame (21). The telescopic shielding curtains (26) are accordion-type shielding curtains.

3. A greenhouse ventilation device according to claim 2, characterized in that: A bottom chute (210) is provided below the greenhouse side frame (21), an auxiliary slider (211) is installed in the bottom chute (210), and the upper end of the auxiliary slider (211) and the lower end of the main slider (24) are both connected to the ventilation plate (25).

4. A greenhouse ventilation device according to claim 3, characterized in that: The output shaft of the servo motor (27) is connected to the driving screw (23), and the right end of the driving screw (23) is connected to a bearing, which is installed on the right side inside the screw groove (22).

5. A greenhouse ventilation device according to claim 4, characterized in that: The positions of the two groups of ventilation mechanisms (2) are symmetrical to each other, wherein the ventilation fan (212) on one side is an air inlet fan, and the ventilation fan (212) on the other side is an exhaust fan.

6. A greenhouse ventilation device according to claim 1, characterized in that: A magnet ring (31) is installed on the front surface of the ventilation plate (25), and an iron closing plate (3) is provided in front of the magnet ring (31). The magnet ring (31) adsorbs the closing plate (3) by magnetic force.

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