A curtain device for an agricultural greenhouse

Abstract

This utility model relates to a roller shutter device, belonging to the field of agricultural facility technology, specifically a roller shutter device for agricultural greenhouses. It includes multiple sets of columns, with a truss fixedly installed at the ends of every two adjacent columns, and a glass outer wall fixedly installed between every two adjacent columns and trusses. It also includes a winding assembly. This utility model achieves the desired high-strength roller shutter performance, such as the rolling effect of heavy-duty insulation curtains, while simultaneously solving problems such as motor blocking light, large space occupation, and end-interference. It addresses the shortcomings of existing greenhouse curtain rolling devices, which use built-in tubular motors, resulting in low power and poor durability, making them unsuitable for high-strength roller shutters. Furthermore, external fixed motors, connected to the roller shutter tube via swing arms, occupy a large space, block light, and are unsuitable for confined spaces.

Description

Technical Field

[0001] This utility model relates to the field of agricultural facilities technology, and in particular to a roller shutter device for agricultural greenhouses. Background Technology

[0002] In greenhouses used for growing horticultural products, curtains or coverings are commonly used to save energy by reducing heat loss due to radiation or convection; to block incoming sunlight; and to prevent the leakage of artificial light sources. These curtains are typically arranged to move along the greenhouse walls and roof, and can also serve as internal partitions. Existing installations include folding or rolling types. Rolling systems typically employ: a tubular rolling member fixed to the free end of the curtain; and a fixed end connected to the top of the greenhouse wall or ridge.

[0003] However, existing greenhouse curtain rolling devices have the following drawbacks:

[0004] First, the built-in tubular motor has low power and is not durable, making it difficult to meet the requirements of high-strength roller blinds;

[0005] Secondly, the external fixed motor: it is connected to the roller shutter tube through the swing arm, which takes up a lot of space, blocks the light, and cannot be adapted to narrow spaces;

[0006] Based on this, this utility model proposes a roller shutter device for agricultural greenhouses. Utility Model Content

[0007] To address the aforementioned technical problems, this utility model proposes a roller shutter device for agricultural greenhouses that can meet the requirements of high-strength roller shutters, such as the rolling effect of heavy-duty heat-insulating curtains, while solving the problems of motor blocking light, large space occupation, and end interference.

[0008] The technical solution to achieve the purpose of this utility model is: a roller shutter device for agricultural greenhouses, including multiple sets of columns, a truss is fixedly installed at the ends of every two adjacent columns, a glass outer wall is fixedly installed between every two adjacent columns and trusses, and a winding assembly.

[0009] The winding assembly is mounted on the truss and columns.

[0010] The winding assembly includes a top fixing frame fixedly installed at the bottom of the truss, a support plate fixedly installed on one side of the column, and a guide device fixedly installed on the support plate.

[0011] In some embodiments, a rewind shaft is movably mounted between a pair of columns, and a curtain is fixedly connected between the rewind shaft and a top fixed frame.

[0012] In some embodiments, the guide device has a limiting groove, the take-up shaft is slidably connected to the limiting groove, a transmission box is fixedly installed near the end of the take-up shaft, a three-phase motor is fixedly installed at the bottom of the transmission box, and a protective shell is fixedly installed between one side of the transmission box and the take-up shaft.

[0013] In some embodiments, a drive gear one is fixedly installed at the end of the winding shaft that rotates through the three-phase motor, and a drive gear two is fixedly installed at the end of the output shaft of the three-phase motor that rotates through the transmission box. A rack is fixedly installed inside the guiding device, and both drive gear one and drive gear two mesh with the rack.

[0014] Compared with existing technologies, the significant advantages of this invention are:

[0015] Firstly, this utility model provides a sufficiently stable power output through a three-phase motor, ensuring a stable curtain retraction and unfolding effect. Utilizing a guide device and rack, when the rewind shaft moves to the bottom, the transmission box and three-phase motor rotate to a certain extent under the action of the guide device and rack, ensuring that the rewind shaft can fully unfold the curtain and preventing the transmission box and three-phase motor from obstructing the normal movement of the rewind shaft, thereby increasing the covering area.

[0016] Secondly, the external motor of this utility model can be a three-phase motor, which can improve the output power of the motor, thereby facilitating the achievement of a high-strength curtain rolling effect, such as the rolling effect of thick curtains. In addition, the low light shading rate, compact design and end lateral offset reduce shadow projection, and have strong spatial adaptability: suitable for narrow areas such as greenhouse side walls.

[0017] This invention solves the problems of existing greenhouse curtain rolling devices, which use built-in tubular motors, resulting in low power and poor durability, making it difficult to meet the needs of high-strength curtains; while external fixed motors, which connect to the curtain tube via swing arms, occupy a lot of space, block light, and cannot be adapted to narrow spaces. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the winding assembly structure provided by this utility model;

[0021] Figure 3 This is a schematic diagram of the front structure of the winding assembly provided by this utility model;

[0022] Figure 4This is a partial cross-sectional structural diagram of the winding assembly provided by this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Column; 2. Truss; 3. Glass exterior wall; 4. Top fixing frame; 5. Curtain; 6. Rewind shaft; 7. Protective shell; 8. Support plate; 9. Guide device; 10. Transmission box; 11. Three-phase motor; 12. Rack; 13. Drive gear one; 14. Drive gear two; 15. Limiting groove. Detailed Implementation

[0025] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0026] This utility model provides an improved roller shutter device for agricultural greenhouses. The technical solution of this utility model is as follows:

[0027] like Figures 1-4 As shown, a roller shutter device for agricultural greenhouses includes multiple sets of columns 1, with a truss 2 fixedly installed at the ends of every two adjacent columns 1, and a glass outer wall 3 fixedly installed between every two adjacent columns 1 and truss 2. It also includes a winding assembly. The truss 2 provides stable support for the installation of the winding assembly, thereby ensuring that the winding assembly can work normally.

[0028] The winding assembly is mounted on truss 2 and column 1.

[0029] The winding assembly includes a top fixing frame 4 fixedly installed at the bottom of the truss 2, a support plate 8 fixedly installed on one side of the column 1, and a guide device 9 fixedly installed on the support plate 8. The support plate 8 ensures that the transmission part of the winding assembly will not affect the shading, thus ensuring that sufficient shading effect can be achieved. In addition, the guide device 9 ensures that the winding assembly can move smoothly.

[0030] Furthermore, a retractable shaft 6 is movably installed between a pair of columns 1. A curtain 5 is fixedly connected between the retractable shaft 6 and the top fixed frame 4. The retractable shaft 6 can be used to retract and extend the curtain 5, thereby facilitating the blocking effect and allowing adjustment according to the required blocking area.

[0031] Furthermore, a limiting groove 15 is provided on the guide device 9, and the winding shaft 6 is slidably connected to the limiting groove 15. A transmission box 10 is fixedly installed near the end of the winding shaft 6, and a three-phase motor 11 is fixedly installed at the bottom of the transmission box 10. A protective shell 7 is fixedly installed between one side of the transmission box 10 and the winding shaft 6. The protective shell 7 can effectively prevent damage to the connection between the winding shaft 6 and the curtain 5, and avoid external interference that could affect the normal winding effect.

[0032] Furthermore, a drive gear 13 is fixedly installed at the end of the take-up shaft 6 that rotates through the three-phase motor 11, and a drive gear 2 14 is fixedly installed at the end of the transmission box 10 that rotates through the output shaft of the three-phase motor 11. A rack 12 is fixedly installed inside the guide device 9. Both the drive gear 13 and the drive gear 2 14 mesh with the rack 12. The rack 12 has a certain curvature at its bottom, which enables the transmission box 10 and the three-phase motor 11 to rotate to a certain extent through the gears, thus avoiding affecting the normal unfolding of the take-up shaft 6 and the curtain 5.

[0033] The specific working method is as follows: When it is necessary to shade the inside of the greenhouse, the three-phase motor 11 is started, which drives the winding shaft 6 to rotate through the transmission box 10. This, in turn, drives the drive gear 13 and drive gear 2 14 to move downward, thereby unfolding the curtain 5. The curtain can be adjusted according to the required shading area. When complete shading is required, the winding shaft 6 continues to move downward. When the drive gear moves to the arc of the rack 12, it can drive the transmission box 10 and the three-phase motor 11 to rotate, thus avoiding the two from obstructing the normal downward movement of the winding shaft 6, thereby increasing the shading area and improving the shading effect.

[0034] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A curtain rolling device for agricultural greenhouse, comprising a plurality of groups of stand columns (1), a truss (2) is fixedly installed at the end of each two adjacent stand columns (1), characterized in that: Glass outer wall (3) is fixedly installed between every two adjacent columns (1) and trusses (2), further comprising; A winding assembly is arranged on the truss (2) and the column (1); The winding assembly comprises a top fixed frame (4) fixedly installed at the bottom of the truss (2), and a support plate (8) fixedly installed on one side of the column (1), and a guide device (9) fixedly installed on the support plate (8).

2. The curtain rolling device for agricultural greenhouse according to claim 1, characterized in that: A winding shaft (6) is movably installed between a pair of columns (1), and a curtain (5) is fixedly connected between the winding shaft (6) and the top fixed frame (4).

3. The curtain rolling device for agricultural greenhouse according to claim 2, characterized in that: A limiting groove (15) is formed in the guide device (9), the winding shaft (6) is slidably connected with the limiting groove (15), a transmission box (10) is fixedly installed on the winding shaft (6) close to the end portion, a three-phase motor (11) is fixedly installed at the bottom of the transmission box (10), and a protective shell (7) is fixedly installed between one side of the transmission box (10) and the winding shaft (6).

4. The curtain rolling device for agricultural greenhouse according to claim 3, characterized in that: A driving gear one (13) is fixedly installed on the end portion of the three-phase motor (11) penetrating through the rotating winding shaft (6), a driving gear two (14) is fixedly installed on the end portion of the output shaft of the three-phase motor (11) penetrating through the transmission box (10), a rack (12) is fixedly installed in the guide device (9), and the driving gear one (13) and the driving gear two (14) are engaged with the rack (12).

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