Automatic curtain rolling device for greenhouse

Abstract

The utility model belongs to the technical field of greenhouses, and relates to an automatic roller shutter device for a greenhouse, which comprises a roller shutter shaft, two roller shutter motors are arranged at two ends of the roller shutter shaft respectively, each roller shutter motor is provided with a telescopic rod, the bottom ends of the two telescopic rods are respectively hinged with a base fixed on the ground, a vertical rod is arranged on one side of each base, and the vertical rod is connected with the vertical rod. A photovoltaic panel and a photovoltaic cell are arranged on the vertical rod, the photovoltaic cell is connected with the curtain rolling motor, a locking mechanism matched with the telescopic rod is arranged on the other side of the base, and the automatic curtain rolling device achieves automatic curtain rolling / releasing with self-adaption of sunlight intensity through photovoltaic power supply and a current sensor. Meanwhile, a wind power rotating mechanism and a rotating speed sensor are used for responding to severe weather, the telescopic rod is reinforced through a locking mechanism, and greenhouse facilities and crops are effectively protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of greenhouses, and in particular relates to an automatic rolling curtain device for greenhouses. Background Art

[0002] With the continuous development of modern agricultural technology, greenhouses have become an important means of improving crop yield and quality. Roller shutters play a crucial role in greenhouse operations, controlling sunshade and heat preservation. However, traditional roller shutters are mostly manually operated, which presents significant drawbacks in strong winds.

[0003] In strong winds, greenhouse curtains need to be lowered quickly to protect against the force of the wind and prevent damage to the structure. However, manual operation often results in delayed curtain lowering, which can damage the greenhouse. Furthermore, manual operation is labor-intensive and inefficient, and it's difficult to ensure the curtains stay in place, further increasing the risk of damage.

[0004] Therefore, in response to the above problems, it is necessary to develop an intelligent rolling curtain device for greenhouses that can automatically respond to weather changes and quickly and accurately control the lifting of the curtain. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides an automatic rolling curtain device for a greenhouse to solve the above-mentioned problems.

[0006] The utility model discloses an automatic rolling shutter device for a greenhouse, comprising a rolling shutter shaft, a rolling shutter motor provided at both ends of the rolling shutter shaft, and a telescopic rod provided for each of the two rolling shutter motors. The bottom ends of the two telescopic rods are respectively hinged to a base fixed to the ground, a vertical rod is provided on one side of the base, a photovoltaic panel and a photovoltaic cell are provided on the vertical rod, the photovoltaic cell is connected to the rolling shutter motor, a current sensor is provided between the photovoltaic cell and the photovoltaic panel, the current sensor is connected to a first control switch, the first control switch is connected to the rolling shutter motor, a locking mechanism matched with the telescopic rod is provided on the other side of the base, a steering sensor is provided between the rolling shutter motor and the rolling shutter shaft, the steering sensor is connected to a second control switch, and the second control switch is connected to the locking mechanism.

[0007] Furthermore, the locking mechanism includes an electric push rod, a plug plate is provided at the telescopic end of the electric push rod, and a slot baffle corresponding to the plug plate is provided on the telescopic rod.

[0008] Furthermore, a fixing groove is provided on the roller blind shaft, and a plurality of threaded grooves connected to the fixing groove are provided on the shaft wall of the roller blind shaft. A tightening bolt is provided in each of the threaded grooves, and a rotatably connected pressure plate is provided at the inner end of the tightening bolt.

[0009] Furthermore, a wind-driven rotating mechanism is provided at the top end of the vertical rod, a rotation speed sensor is provided between the wind-driven rotating mechanism and the vertical rod, and the rotation speed sensor is connected to the first control switch.

[0010] Furthermore, the wind-driven rotating mechanism includes a rotating shaft, one end of which is rotatably connected to a vertical rod, and a plurality of cross bars are arranged around the rotating shaft, each of which is provided with a wind bowl.

[0011] Compared with the prior art, the beneficial effects of the automatic rolling shutter device are:

[0012] 1. Through the design of photovoltaic power supply and current sensor, the roller blind device can automatically roll up or down the blind according to the intensity of sunlight, realizing the automatic lifting of the roller blind.

[0013] 2. Through the design of the wind-driven rotation mechanism and the speed sensor, the roller shutter device can respond to changes in severe weather, and use the locking mechanism to lock and reinforce the telescopic rod, thereby effectively protecting the greenhouse facilities and crops. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the utility model;

[0015] Figure 2 It is a left view of the utility model;

[0016] Figure 3 is a top view of the locking mechanism;

[0017] Figure 4 It is a cross-sectional view of the roller blind shaft;

[0018] Figure 5 It is a schematic diagram of the local structure.

[0019] In the figure: 1. Rolling shutter shaft; 2. Rolling shutter motor; 3. Telescopic rod; 4. Base; 5. Vertical rod; 6. Photovoltaic panel; 7. Photovoltaic cell; 8. Locking mechanism; 9. Electric push rod; 10. Insert plate; 11. Slot baffle; 12. Fixing slot; 13. Tightening bolt; 14. Pressure plate; 15. Rotating shaft; 16. Cross bar; 17. Wind bowl; 18. Greenhouse; 19. Cover curtain. DETAILED DESCRIPTION

[0020] In order to better understand the present invention, Figures 1 to 5 The embodiments of the present invention will be explained in detail.

[0021] It should be noted that the directions “front, back, left, right, up, down” mentioned in the text are all based on Figure 1 The directions of “front, back, left, right, up and down” are used as the reference.

[0022] See also Figures 1 to 5 The present invention relates to an automatic rolling curtain device for a greenhouse, comprising a rolling curtain shaft 1, wherein the rolling curtain shaft 1 is used to fix one end of a cover curtain 19, and the other end of the cover curtain 19 is fixedly connected to the top of a greenhouse 18. A rolling curtain motor 2 is provided at each end of the rolling curtain shaft 1, and two rolling curtain motors 2 are each provided with a telescopic rod 3. The bottom ends of the two telescopic rods 3 are respectively hinged to a base 4 fixed to the ground. A vertical rod 5 is provided on one side of the base 4, and a photovoltaic panel 6 and a photovoltaic cell 7 are provided on the vertical rod 5. The photovoltaic cell 7 is connected to the rolling curtain motor 2. A current sensor is provided between the photovoltaic cell 7 and the photovoltaic panel 6, and the current sensor is connected to a first control switch. The first control switch is connected to the rolling curtain motor 2. A locking mechanism 8 that cooperates with the telescopic rod 3 is provided on the other side of the base 4. A steering sensor is provided between the rolling curtain motor 2 and the rolling curtain shaft 1 for detecting the forward and reverse rotation of the rolling curtain shaft 1. The steering sensor is connected to a second control switch, and the second control switch is connected to the locking mechanism 8.

[0023] The rolling curtain device has two working states: curtain-opening and curtain-rolling. Figure 1 The figure shows the state of lowering the curtain. At this time, the telescopic rod 3 and the roller curtain motor 2 at its end are both lying toward the ground, and the cover curtain 19 covers the greenhouse 18 to keep it warm. When it is necessary to roll up the cover curtain 19 to let in light and heat the greenhouse 18, the roller curtain motor 2 is controlled to rotate clockwise, and the cover curtain 19 is wound from the bottom by the rotation of the roller curtain shaft 2. As the cover curtain 19 is wound, the roller curtain shaft 1 and the rolled cover curtain 19 roll upward on the greenhouse 18. At the same time, the roller curtain motors 2 at both ends of the roller curtain shaft 1 follow the synchronous telescopic adjustment of the telescopic rod 3 until the roller curtain motor 2 reaches the preset number of turns, so that the roller curtain shaft 1 and the rolled cover curtain 19 reach the top of the greenhouse 18, completing the rolling of the curtain ( Figure 2 When the curtain needs to be lowered, the curtain motor 2 is controlled to rotate counterclockwise.

[0024] In the preferred technical solution of this embodiment, the locking mechanism 8 includes an electric push rod 9 , a plug plate 10 is provided at the telescopic end of the electric push rod 9 , and a slot baffle 11 corresponding to the plug plate 10 is provided on the telescopic rod 3 .

[0025] In the preferred technical solution of this embodiment, the roller blind shaft 1 is provided with a fixing groove 12, and the shaft wall of the roller blind shaft 1 is provided with a plurality of threaded grooves connected to the fixing groove 12. A jacking bolt 13 is provided in each threaded groove, and a rotatably connected pressure plate 14 is provided at the inner end of each jacking bolt 13. By passing one end of the roller blind through the fixing groove 12 and screwing the jacking bolt 13 so that the inner end extends into the fixing groove 12, the roller blind is pressed by the pressure plate 14 at the end thereof, thereby achieving a fixed connection between the roller blind shaft 1 and the roller blind.

[0026] In this preferred embodiment, a wind-driven rotating mechanism is installed at the top of the vertical rod 5. A speed sensor is installed between the wind-driven rotating mechanism and the vertical rod 5 and is connected to a first control switch. The speed sensor monitors the speed of the rotating shaft 15 in real time. When the speed exceeds a set value, the first control switch activates the roller shutter motor 2, automatically lowering the cover curtain 19 for safety protection.

[0027] The preferred technical solution in this embodiment is that the wind-driven rotating mechanism includes a rotating shaft 15 , one end of which is rotatably connected to the vertical rod 5 , and a plurality of cross bars 16 are provided around the rotating shaft 15 , each of which is provided with a wind bowl 17 .

[0028] The current sensor described in the present utility model adopts a fluxgate sensor, preferably the DS200ID type produced by Dalian Tongce Instrument Co., Ltd.; the steering sensor adopts a Hall sensor, preferably the HN62 Hall dual-channel forward and reverse speed sensor produced by Shanghai Gonghuang Sensor Co., Ltd.; the speed sensor adopts a magnetoelectric sensor, preferably the YD60 type produced by Shanghai Zhenzhen Automation Instrument Co., Ltd.

[0029] The usage and principle of this utility model:

[0030] When the sun rises, photovoltaic panels 6 begin absorbing sunlight and converting it into electricity, charging photovoltaic cells 7. During this time, a current sensor monitors the current in real time. Once the current reaches a set value, the current sensor sends a signal to the first control switch, controlling the roller shutter motor 2 to rotate forward, rolling up the curtain and allowing sunlight to enter and warm the greenhouse 18. As time passes and the sun sets, the efficiency of the sunlight converted into electricity by photovoltaic panels 6 decreases. Once the current drops to a set value, the current sensor sends a signal to the first control switch, controlling the roller shutter motor 2 to rotate backward, lowering the curtain 19 and insulating the greenhouse 18.

[0031] When encountering strong winds, as the wind force gradually increases, the speed of the wind-driven rotating mechanism increases, and the speed sensor monitors its speed in real time. Once the speed exceeds the set value, the speed sensor sends a signal to the first control switch to control the start of the roller shutter motor 2, automatically lowering the cover curtain 19 to protect the greenhouse film and crops in the greenhouse 18. Each time the roller shutter motor 2 reverses to lower the curtain, the steering sensor receives a reversal signal. When the roller shutter motor 2 stops reversing, the steering sensor sends a signal to the second control switch. The second control switch that receives the signal controls the electric push rod 9 to open so that the plug plate 10 is inserted into the slot baffle 11, thereby fixing the telescopic rod 3 and its cover curtain 19. By locking the telescopic rod 3 with the locking mechanism 8, the influence of strong winds on the cover curtain 19 can be avoided, making the cover curtain 19 and the greenhouse film below it more secure.

[0032] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication between two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0033] The above are only preferred embodiments of the present invention and are 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. An automatic rolling curtain device for a greenhouse, characterized by: The invention comprises a rolling curtain shaft (1), wherein both ends of the rolling curtain shaft (1) are provided with a rolling curtain motor (2), and the two rolling curtain motors (2) are provided with a telescopic rod (3), and the bottom ends of the two telescopic rods (3) are respectively hinged to a base (4) fixed to the ground, and a vertical rod (5) is provided on one side of the base (4), and a photovoltaic panel (6) and a photovoltaic cell (7) are provided on the vertical rod (5), and the photovoltaic cell (7) is connected to the rolling curtain motor (2), and a current sensor is provided between the photovoltaic cell (7) and the photovoltaic panel (6), and the current sensor is connected to a first control switch, and the first control switch is connected to the rolling curtain motor (2), and a locking mechanism (8) matched with the telescopic rod (3) is provided on the other side of the base (4), and a steering sensor is provided between the rolling curtain motor (2) and the rolling curtain shaft (1), and the steering sensor is connected to a second control switch, and the second control switch is connected to the locking mechanism (8).

2. The automatic rolling curtain device for a greenhouse as claimed in claim 1, characterized in that: The locking mechanism (8) comprises an electric push rod (9), a plug plate (10) is provided at the telescopic end of the electric push rod (9), and a slot baffle (11) corresponding to the plug plate (10) is provided on the telescopic rod (3).

3. The automatic rolling curtain device for a greenhouse as claimed in claim 1, characterized in that: The curtain roller shaft (1) is provided with a fixing groove (12), and the shaft wall of the curtain roller shaft (1) is provided with a plurality of threaded grooves connected to the fixing groove (12), each of the threaded grooves is provided with a tightening bolt (13), and the inner end of the tightening bolt (13) is provided with a rotatably connected pressing plate (14).

4. The automatic rolling curtain device for a greenhouse as claimed in claim 1, characterized in that: A wind-driven rotating mechanism is provided at the top end of the vertical rod (5), a rotation speed sensor is provided between the wind-driven rotating mechanism and the vertical rod (5), and the rotation speed sensor is connected to a first control switch.

5. The automatic rolling curtain device for a greenhouse as claimed in claim 4, characterized in that: The wind-driven rotating mechanism comprises a rotating shaft (15), one end of which is rotatably connected to a vertical rod (5), and a plurality of cross rods (16) are arranged around the rotating shaft (15), each of which is provided with a wind bowl (17).

Images