Agricultural sunshade structure

Abstract

The utility model discloses an agricultural sun-shading structure which comprises a sun-shading plate arranged on a roof, the roof is of a continuous up-and-down structure, a first supporting seat is arranged at the valley bottom of the roof, and the lower portion of the sun-shading plate is connected with the first supporting seat through a rotating shaft; a second supporting seat is arranged on the peak top of the roof, a winch assembly is arranged on the second supporting seat, the upper portion of the sun shield is connected with the winch assembly on the peak top on one side through a traction rope, and the upper portion of the sun shield is connected with the winch assembly on the peak top on the other side or a balancing weight through a traction rope. According to the agricultural sunshade system, the luminous flux in a room can be adjusted through the arrangement of the sunshade plate capable of being adjusted in a deflection mode, when the sunshade plate is located outside a greenhouse, under the condition that the illumination intensity requirement of plants is met, the sunshade plate can be controlled to shield sunlight so that the plants can be protected against excessive illumination damage, and the service life of the plants is prolonged. And meanwhile, the greenhouse can be cooled by shielding sunlight.

Description

Technical Field

[0001] The utility model relates to the technical field of greenhouse sunshading, in particular to an agricultural sunshade structure. Background Art

[0002] A glass greenhouse is a type of greenhouse that uses glass as a light-transmitting material. Among cultivation facilities, glass greenhouses offer the longest lifespan and are suitable for use in a wide range of regions and climates. The size and usage of these greenhouses can be customized by the greenhouse owner, ranging from the smallest courtyard-style leisure space to the largest glass structures, reaching heights exceeding 10 meters and spans of more than ten meters.

[0003] Glass greenhouses are typically equipped with a sunshade system above. When sunlight intensity is too high, the sunshade system is often adjusted to reduce the intensity of light reaching the plant leaves, ensuring normal plant growth. Traditional greenhouse sunshade systems use sunshade nets that scale the shade area. This method not only requires a complex support structure on the greenhouse roof, but also cannot achieve zero sunshade. Summary of the Invention

[0004] The purpose of the utility model is to provide an agricultural sunshade structure in view of the problems existing in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An agricultural sunshade structure includes a sunshade plate arranged on a roof, wherein the roof is a continuously undulating structure, a first support seat is provided at the bottom of the roof, the bottom of the sunshade plate is connected to the first support seat via a rotating shaft, and the sunshade plate is swung by a driving mechanism arranged on the roof; the driving mechanism includes a second support seat arranged on the peak of the roof, the second support seat is provided with a winch assembly, the top of the sunshade plate is connected to the winch assembly on the peak of one side via a traction rope, and the top of the sunshade plate is connected to the winch assembly on the peak of the other side via a traction rope, or is connected to a counterweight block or a fixed pulley; or, the driving mechanism includes a driving motor arranged on the roof, and a traction rod connected to the sunshade plate, and the driving motor is connected to and drives the traction rod via a transmission assembly.

[0007] This agricultural shading system can adjust the light flux in the house by setting up a deflectable and adjustable sunshade. When the sunshade is located outside the greenhouse, while ensuring the light intensity requirements of the plants, the sunshade can be controlled to block sunlight to protect the plants from being damaged by excessive light. At the same time, the greenhouse can also be cooled by blocking sunlight.

[0008] By using the sunshade, shading is performed by deflecting the angle of the sunshade and the sunlight, which can achieve zero shading or full shading. Compared with the traditional sunshade net system, it has more shading advantages and adjustability; and the overall structure is simple, and the installation is relatively simple and convenient, without the need to set up a complex support system on the roof.

[0009] Furthermore, a sunshade is provided in each valley bottom unit of the roof, and the rotation axis of the sunshade is located on the angle bisector of the valley bottom.

[0010] In some embodiments, a pair of parallel sunshades are provided in each valley unit of the roof, and the two sunshades are respectively connected to the first support seat through a rotating shaft, and the two sunshades are respectively deflected toward the peak direction of their side.

[0011] Furthermore, the hoist assembly includes a hoist shaft and a servo motor connected to and driving the hoist shaft. The hoist shaft is supported on the second support base via a bearing seat, and the servo motor is mounted on the second support base via a machine foot. The servo motor drives the hoist shaft to rotate forward and reverse, reeling in or releasing the traction rope, thereby deflecting the sun visor and allowing it to hover at any angle.

[0012] In some embodiments, the rooftop is further provided with a plurality of pulley brackets, each equipped with a fixed pulley. The traction rope on one side is wound around the fixed pulley and connected to the counterweight. Alternatively, the rooftop is further provided with a plurality of pulley brackets at the peak and valley, each equipped with a fixed pulley. The traction rope is wound around the fixed pulleys at the peak and valley, and then returns to the winch assembly.

[0013] Furthermore, a plurality of connection holes or a plurality of connection rings are provided above the sun visor, and the connection holes or the connection rings are used to connect the traction rope.

[0014] Furthermore, the sunshade is a solar panel that generates electricity while providing shade and cooling.

[0015] Furthermore, the sun visor is also provided with a light intensity sensor, which can obtain the light intensity value in real time.

[0016] Furthermore, the roof is the glass room roof of a glass greenhouse, the continuous undulating structure is a connecting V-shaped groove structure arranged along the width direction of the glass greenhouse, and a plurality of the sunshades are arranged in sequence at each V-shaped groove structure along the length direction of the glass greenhouse.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The agricultural shading system can adjust the light flux in the house by setting a deflectable and adjustable sunshade. When the sunshade is located outside the greenhouse, while ensuring the light intensity requirements of the plants, the sunshade can be controlled to block the sunlight to protect the plants from being damaged by excessive light. At the same time, the greenhouse can also be cooled by blocking the sunlight; 2. When the sunshade is a solar panel, power output can be achieved without affecting the growth of plants, and power can be generated while shading and cooling; 3. Shading is performed by deflecting the sunshade and the angle of the sunlight, which can achieve zero shading or full shading. Compared with the traditional sunshade net system, it has more shading advantages and adjustability; and the overall structure is simple, and the installation is relatively simple and convenient, without the need to erect a complex support system on the roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall layout of an agricultural sunshade system of the utility model;

[0019] Figure 2 This is a partial structural diagram of an agricultural sunshade system according to the present utility model;

[0020] Figure 3 This is a structural schematic diagram of a sunshade for an agricultural sunshade system according to the present utility model;

[0021] Figure 4 This is a structural diagram of a winch assembly of an agricultural sunshade system according to the present utility model;

[0022] Figure 5 This is a schematic diagram of another arrangement structure of the sunshade of an agricultural sunshade system of the utility model;

[0023] Figure 6 This is a force diagram of a sunshade plate of an agricultural sunshade system according to the utility model;

[0024] Figure 7 This is a front structural diagram of a sun visor provided with a support plate according to the present invention;

[0025] Figure 8 This is a side structural diagram of a support plate provided on the sun visor of the utility model;

[0026] Figure 9 This is a schematic diagram of a light intensity sensor provided on the support plate of the utility model;

[0027] Figure 10 A schematic diagram of another drive mechanism connected to a sun visor according to the present invention;

[0028] Figure 11 for Figure 10Schematic diagram of the middle drive mechanism driving the sun visor to the left extreme position;

[0029] Figure 12 for Figure 10 Schematic diagram of the middle drive mechanism driving the sun visor to the right extreme position;

[0030] Figure 13 for Figure 10 A top view of the middle drive mechanism;

[0031] Figure 14 for Figure 10 Schematic diagram of the connection between the center sun visor, tow bar and push-pull rod;

[0032] In the figure: 1. Glass greenhouse; 2. Roof; 3. First support seat; 4. Sun visor; 5. Second support seat; 6. Traction rope; 7. Rotating shaft; 8. Connecting hole; 9. Winch shaft; 10. Servo motor; 11. Bearing seat; 12. Support plate 1; 13. Support plate 2; 14. Light intensity sensor; 15. Articulated seat; 16. Traction rod; 17. Fixed bracket; 18. Drive motor; 19. Long screw; 20. Slider; 21. Push-pull rod; 22. Guide rod; 23. Bearing support seat. DETAILED DESCRIPTION

[0033] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. 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.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example 1

[0035] like Figures 1 to 4As shown, an agricultural sunshade structure includes a sunshade 4 arranged on a roof 2, and the roof 2 is a continuous undulating structure. A first support seat 3 is provided at the bottom of the valley of the roof 2, and the bottom of the sunshade 4 is connected to the first support seat 3 through a rotating shaft 7; a second support seat 5 is provided at the peak of the roof 2, and a winch assembly is provided on the second support seat 5. The top of the sunshade 4 is connected to the winch assembly on the peak on one side through a traction rope 6, and the top of the sunshade 4 is connected to the winch assembly on the peak on the other side through the traction rope 6 or the counterweight block.

[0036] This agricultural shading system can adjust the light flux in the house by setting a deflectable and adjustable sunshade 4. When the sunshade 4 is located outside the greenhouse, while ensuring the light intensity requirements of the plants, the sunshade 4 can be controlled to block sunlight to protect the plants from being damaged by excessive light. At the same time, the greenhouse can also be cooled by blocking sunlight.

[0037] When the sun visor 4 is parallel to the sunlight, the sun visor has a minimum shading rate and can achieve no shading; the maximum shading rate is related to the solar incident angle. When the angle between the sunlight and the ground is less than 30 degrees, basically 100% shading can be achieved. When the angle between the sunlight and the ground is 90 degrees, the maximum shading coefficient is about 50%.

[0038] By using the sun visor 4, shading is performed by deflecting the angle of the sun visor and sunlight, which can achieve zero shading or full shading. Compared with the traditional sunshade net system, it has more shading advantages and adjustability; and the overall structure is simple, and the installation is relatively simple and convenient, without the need to set up a complex support system on the roof.

[0039] This agricultural shading system can also maintain the greenhouse light flux within a set range through intelligent algorithms combined with the automatic control of the sunshade, without the need for frequent manual adjustments.

[0040] The first support seat 3 and the rotating shaft 7 are configured to rotatably support the sun visor 4. By utilizing the traction control of the winch assembly and the traction rope 6, the sun visor 4 can be deflected within a certain range. For example, in this embodiment, the angle at the roof trough is within the range of 120°-170°, so the sun visor can also be deflected within this range.

[0041] The second support base 5 is mainly used to support the hoisting assembly so that it can be installed on the roof. The second support base 5 and the hoisting assembly can be set in multiple groups, respectively connecting sunshades at different positions and in different directions.

[0042] For the sun visor 4, it needs to be reciprocated within a certain range. Setting the traction rope on only one side of the sun visor cannot meet the adjustment requirements. Therefore, a traction rope is also set on the other side of the sun visor. Figure 6 As shown, the sun visor is subjected to traction forces (e.g., F1 and F2) at adjacent wave crests. By varying the forces F1 and F2, the sun visor is deflected. F1 and F2 can each be connected to a motor, with traction ropes controlling the visor's deflection. Alternatively, one (e.g., F2) can be connected to a fixed counterweight, while the other (e.g., F1) is controlled by a motor for retraction and extension.

[0043] In some embodiments, each valley unit of the roof 2 is provided with a sunshade 4, with its pivot axis located on the angle bisector of the valley. This arrangement allows for sunshade adjustment by allowing a single sunshade to deflect within the range between the left and right slopes. In this configuration, the first support is positioned in the middle of the valley angle, forming an inverted Y-shaped structure that can be supported on the slopes on either side.

[0044] In some embodiments, as Figure 5 As shown, a pair of parallel sunshades 4 are provided in each valley unit of the roof 2, and the two sunshades 4 are connected to the first support seat 3 through a rotating shaft, and the two sunshades 4 are deflected toward the peak direction of the side.

[0045] In this manner, the two sun visors 4 can be controlled to deflect to their respective sides, that is, the left sun visor deflects to the left, and the right sun visor deflects to the right, so that when both are vertical, they are parallel and close to each other. In this manner, the first support base 3 can be a pair of first support bases 3 provided on the inclined surfaces on both sides, each supporting the sun visor on its respective side.

[0046] Furthermore, the hoisting assembly includes a hoisting shaft 9 and a servo motor 10 connected to and driving the hoisting shaft 9. The hoisting shaft 9 is supported on the second support seat 5 through a bearing seat 11, and the servo motor 10 is installed on the second support seat 5 through a machine foot.

[0047] The servo motor 10 drives the hoist shaft 9 to rotate forward and reverse, reeling in or releasing the traction rope 6, thereby deflecting the sun visor 4 and allowing the sun visor 4 to hover at any angle. If a double-sided multi-group hoist assembly is used to control the sun visor, the hoist shaft on one side reels in the traction rope, while the hoist shaft on the other side releases the traction rope. The two traction ropes can be the same or connected separately.

[0048] In some embodiments, the rooftop peak is further provided with a plurality of pulley brackets, each equipped with a fixed pulley. The traction rope on one side is wound around the fixed pulley and connected to the counterweight. When the traction rope on one side of the sun visor is pulled, the counterweight on the other side can use its gravity to maintain the sun visor, allowing the sun visor to hover at any angle.

[0049] In some embodiments, the roof's peak and valley are each equipped with a plurality of pulley brackets. These pulley brackets can be staggered relative to the first or second support bases, or the peak pulley bracket can be mounted on the second support base, while the valley pulley bracket is mounted in a neutral position between a pair of first support bases. Each pulley bracket is equipped with a fixed pulley (or pulley assembly). The traction rope 6 is looped around the fixed pulleys at the peak and valley before returning to the hoist assembly. After looping around the peak fixed pulley, the traction rope 6 connects to the adjacent sun visors 4. After stringing together each row of sun visors 4, the traction rope then loops around the peak and valley fixed pulleys before returning to the hoist assembly. By arranging these traction ropes and the multiple, high- and low-positioned fixed pulleys, each row of sun visors can be connected in series, allowing for synchronized deflection and angle adjustment during retraction and lowering of the hoist assembly. This eliminates the need for multiple hoist assemblies, allowing for the installation of hoist assemblies on only two sides or only one side.

[0050] When the tops of the sun visors are integrally connected by traction ropes, they are not in contact with the peaks in the case of synchronous deflection.

[0051] Furthermore, a plurality of connection holes 8 or a plurality of connection rings are provided above the sun visor 4. The connection holes 8 or the connection rings are used to connect the traction rope 6. This connection method is simple and convenient.

[0052] Furthermore, the sun visor 4 can be a simple sun visor or a solar panel that can generate electricity while providing shade and cooling. When the sun visor is a solar panel, power output can be achieved without affecting plant growth. In this case, the primary purpose of the sun visor is still to provide shade and adjust the indoor light intensity, but during the shading process, it can absorb light energy and convert it into electrical energy. For large glass greenhouses, the electricity generated by the installation of these solar sun visors is fully capable of supplying electricity to the entire glass greenhouse. It should be noted that when adjusting the angle of the sun visor, the primary purpose is not to absorb sunlight to generate electricity.

[0053] In some embodiments, light intensity sensors are provided on both sides of the sun visor 4, which can obtain light intensity values in real time. The purpose is to control the direction and angle of deflection of the sun visor according to the size of the light intensity value.

[0054] For example, two support plates with an angle between them are set above the sun visor, and they can be staggered; a light intensity sensor is set on the front and back sides of the two support plates respectively, and the sum of the light intensity values on the front and back sides of the two support plates is compared, and the direction of deflection of the sun visor is determined according to the sum of the light intensity values.

[0055] Specifically, such as Figures 7 to 9 As shown, a control method for an agricultural sunshade system is described. Support plate 1 12 and support plate 2 13 are disposed above the sunshade 4, with an angle a formed between support plate 1 12 and support plate 2 13. Light intensity sensors 14, designated A1 and A2, are disposed on the front and back sides of support plate 1 12, respectively. Light intensity sensors 14, designated B1 and B2, are also disposed on the front and back sides of support plate 2 13. Together, A1, A2, B1, and B2 form a composite light intensity sensor unit. By comparing the sum of the light intensity values of A1 + A2 with the sum of the light intensity values of B1 + B2, it is determined which direction the sunshade should be deflected to achieve a greater or lesser shading effect (or degree of light blocking). Specifically, the direction of sunshade deflection is determined based on the sum of the light intensity values. If the value of A1 + A2 is greater, deflection in direction A (the direction of support plate 1) will achieve a greater shading effect, while deflection in direction A (the direction of support plate 1) will achieve a lesser shading effect.

[0056] Furthermore, the roof 2 is the glass room roof of the glass greenhouse 1, and the continuous undulating structure is a connecting V-shaped groove structure arranged along the width direction of the glass greenhouse. At each V-shaped groove structure, several sunshades are arranged in sequence along the length direction of the glass greenhouse. Example 2

[0057] This embodiment provides another technical solution for the synchronous swinging of the sunshade. The driving mechanism includes a driving motor arranged on the roof and a traction rod connected to the sunshade, wherein the driving motor is connected to and drives the traction rod through a transmission assembly.

[0058] Specifically, such as Figures 10 to 14 As shown, a fixed bracket 17 is provided on the side of the roof, and a rotatable long screw 19 and a drive motor 18 connected to and driving the long screw 19 are connected to the side of the fixed bracket 17; a movable (threaded) slider 20 is provided on the long screw 19, and one side of the slider 20 is connected to a push-pull rod 21 through a rotating shaft; a traction rod 16 is provided above the sun visor 4 on the roof, and the traction rod 16 is rotatably connected to the sun visor 4, and a hinge seat 15 is provided on the rightmost sun visor 4 (the sun visor close to the long screw), which can be one or more, and the end of the traction rod 16 and the end of the push-pull rod 21 are connected through the hinge seat 15.

[0059] When the drive motor 18 rotates the long screw 19, the slider 20 reciprocates on the long screw 19. Because each node is hinged or pivotally connected, the push-pull rod 21 allows the sun visor 4 to swing within a certain angle during its forward and backward movement. The drive motor can be a stepper motor with an output shaft or a through-type screw stepper motor that combines a long screw and a motor.

[0060] When the slider 20 moves to the left limit position, the push-pull rod 21 pushes the traction rod 16 and the sun visor 4, causing the sun visor 4 to swing to the left and parallel to the slope of one side of the roof. When the slider 20 moves to the right limit position, the push-pull rod 21 pulls the traction rod 16 and the sun visor 4, causing the sun visor 4 to swing to the right and parallel to the slope of the other side of the roof. This arrangement can synchronously drive the movement of the entire row of sun visors 4, allowing the roof to be adjusted synchronously.

[0061] Furthermore, a guide rod 22 parallel to the long screw is provided on the side of the fixed bracket 17, and bearing support seats 23 are provided at both ends of the guide rod 22. The long screw 19 is connected to the bearing support seat 23, and the guide rod 22 itself can also be supported on the roof through a support rod; through such a setting, the supporting stability of the long screw 19 can be improved. At the same time, a guide sleeve is provided on the guide rod 22, and the guide sleeve is connected to the slider 20, which can guide and limit the slider during the movement of the slider 20.

[0062] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An agricultural sunshade structure, comprising a sunshade panel arranged on a roof, characterized in that: The roof is a continuous undulating structure, and a first support seat is provided at the bottom of the roof. The bottom of the sun visor is connected to the first support seat through a rotating shaft, and the sun visor is swung by a driving mechanism arranged on the roof; the driving mechanism includes a second support seat arranged on the peak of the roof, and the second support seat is provided with a winch assembly. The top of the sun visor is connected to the winch assembly on the peak of one side through a traction rope, and the top of the sun visor is connected to the winch assembly on the peak of the other side through a traction rope or a counterweight block or a fixed pulley; or, the driving mechanism includes a driving motor arranged on the roof, and a traction rod connected to the sun visor, and the driving motor is connected to and drives the traction rod through a transmission assembly.

2. The agricultural sunshade structure according to claim 1, characterized in that: A sunshade is provided in each valley bottom unit of the roof, and the rotation axis of the sunshade is located on the angle bisector of the valley bottom.

3. The agricultural sunshade structure according to claim 1, characterized in that: A pair of parallel sunshades are provided in each valley unit of the roof. The two sunshades are connected to the first support seat via a rotating shaft, and the two sunshades are deflected toward the peak direction of the side where they are located.

4. The agricultural sunshade structure according to claim 1, characterized in that: The hoisting assembly includes a hoisting shaft and a servo motor connected to and driving the hoisting shaft. The hoisting shaft is supported on the second support seat through a bearing seat, and the servo motor is installed on the second support seat through a machine foot.

5. The agricultural sunshade structure according to claim 1, characterized in that: There are also several pulley brackets at the peak of the roof, and a fixed pulley is provided on the pulley bracket. The traction rope on one side is wrapped around the fixed pulley and connected to the counterweight block; or there are also several pulley brackets at the peak and valley bottom of the roof, and a fixed pulley is provided on the pulley bracket. The traction rope wraps around the fixed pulleys at the peak and valley bottom and then returns to the winch assembly.

6. The agricultural sunshade structure according to claim 1, characterized in that: A plurality of connection holes or connection rings are provided above the sun visor, and the connection holes or the connection rings are used to connect the traction rope.

7. The agricultural sunshade structure according to claim 1, characterized in that: The sunshade is a solar panel.

8. The agricultural sunshade structure according to claim 1, characterized in that: The sun visor is also provided with a light intensity sensor.

9. The agricultural sunshade structure according to claim 1, characterized in that: The roof is the glass room roof of the glass greenhouse, the continuous undulating structure is a connected V-shaped groove structure arranged along the width direction of the glass greenhouse, and a plurality of sunshades are arranged in sequence at each V-shaped groove structure along the length direction of the glass greenhouse.

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