Sunlight greenhouse sunshade net winding device

Abstract

The application belongs to the technical field of auxiliary device of greenhouse, and discloses a sunshade net winding device for sunlight greenhouse, which comprises a winding assembly and a guide assembly. The winding assembly comprises a driving part, an auxiliary rod and a sunshade cloth. The driving part is arranged at one end of the auxiliary rod and is used for driving the auxiliary rod to rotate. One end of the sunshade cloth is fixed to the top of the back wall of the greenhouse, and the other end is fixed and wound on the auxiliary rod. The guide assembly comprises an auxiliary plate and a friction part. The auxiliary plate is arranged at the bottom of the driving part, and the friction part is arranged on the auxiliary plate and is used for determining the moving direction of the driving part and limiting the horizontal displacement of the driving part. By arranging the friction part, the friction part moves on the cotton cloth. When the auxiliary rod deviates to one side, the side wall of the friction part is rubbed and clamped in the wrinkle of the cotton cloth after being pulled, so as to limit the horizontal displacement of the motor and the auxiliary rod. At the same time, the friction part can move along the arc surface of the gable, so as to play a good guiding role.

Description

Technical Field

[0001] This utility model belongs to the technical field of greenhouse auxiliary devices, specifically relating to a greenhouse shading net winding device. Background Technology

[0002] To promote agricultural development, most vegetable seedlings are currently cultivated in greenhouses. However, greenhouses lack a good light control structure. Relying solely on manual addition of shading cloth to the outside of the greenhouse is time-consuming, labor-intensive, and inefficient. It is impossible to achieve efficient automatic control, resulting in less than ideal light control effects.

[0003] In the prior art, for example, Chinese utility model patent CN209002461U discloses a greenhouse device with temperature control function. Specifically, it discloses a support assembly, a transmission assembly, and a shading assembly. The support assembly includes a frame, walls, a greenhouse film, and a roller frame. Walls are fixed to both sides of the frame, and the greenhouse film is detachably mounted on the top of the walls. The roller frame is fixed to the upper surface of the walls and located outside the greenhouse film. The transmission assembly includes a winding motor, a transmission chain box, and a winding drum. The shading layer is composed of three materials with different shading strengths, forming a double-layer structure around the rollers. The winding motor drives the winding drum to wind the shading layer. A small winding distance allows the upper and lower shading layers to achieve different shading effects through their varying shading strengths, thereby adjusting the temperature inside the greenhouse. Furthermore, the short adjustment distance increases its service life and reduces energy consumption.

[0004] However, due to the large span of the greenhouse, one side is often higher than the other when rolling up or unrolling, making it difficult to unroll the shading cloth after rolling it up, or causing the shading cloth to tilt, resulting in incomplete shading in some parts of the greenhouse. Summary of the Invention

[0005] Based on this, this application provides a greenhouse shading net rolling device to solve the problem that when the greenhouse span is large, one side is high and the other side is low when rolling or unfolding, which makes it difficult to unfold the shading cloth after rolling it up, or the shading cloth tilts, resulting in incomplete shading in part of the greenhouse.

[0006] The technical solution to the above-mentioned technical problems in this application is as follows: A greenhouse shading net retraction device includes earthen walls installed on both sides of the greenhouse, and the earthen walls are covered with cotton cloth, comprising: A winding assembly and a guiding assembly are provided. The winding assembly includes a drive component, an auxiliary rod, and a light-blocking cloth. The drive component is disposed at one end of the auxiliary rod and is used to drive the auxiliary rod to rotate. One end of the light-blocking cloth is fixed to the top of the back wall of the greenhouse, and the other end is fixed and wound around the auxiliary rod. The guiding assembly includes an auxiliary plate and a friction element. The auxiliary plate is disposed at the bottom of the drive component, and the friction element is disposed on the auxiliary plate and is used to determine the moving direction of the drive component and limit the horizontal displacement of the drive component.

[0007] Preferably, the friction element is a small friction wheel, which is rotatably mounted on the side of the auxiliary plate near the greenhouse via a bracket; a counterweight is provided on the side of the auxiliary plate away from the small friction wheel, and the counterweight is used to keep the small friction wheel within the range of the earthen wall.

[0008] Preferably, the friction element is a large friction wheel, which is rotatably disposed on both sides of the auxiliary plate, and the horizontal projection of the auxiliary plate is located in the middle of the large friction wheel.

[0009] Preferably, the light-blocking fabric is a knitted sunshade fabric with a stitch count of not less than 10.

[0010] Preferably, a winding wheel is provided at one end of the auxiliary rod near the driving member, and the winding wheel is used to wind up the power supply line of the driving member.

[0011] Preferably, sleeves are provided on both sides of the winding reel, the sleeves are mounted on the auxiliary rod by bearings, and wires are provided on the sleeves, through which the power supply line passes and is wound around the winding reel.

[0012] Preferably, a flexible pad is provided inside the conductor, and the flexible pad is in contact with the power supply line.

[0013] Preferably, a reinforcing rod is provided at one end of the driving component, the reinforcing rod is fixedly connected to the auxiliary plate, and the end of the reinforcing rod away from the driving component is fixedly connected to the end of the counterweight.

[0014] The technical solution adopted in this application can achieve the following beneficial effects: 1. By setting up friction components, the friction components can move on the cotton cloth. When the auxiliary rod shifts to one side, the side wall of the friction component rubs against and gets stuck in the folds that appear after the cotton cloth is pulled, thereby limiting the horizontal displacement of the motor and the auxiliary rod. At the same time, by setting up friction components, it can move along the arc surface of the gable wall, which plays a good guiding role.

[0015] 2. By installing a greenhouse shade net rolling device on each of the two opposite gable walls, the problem of insufficient rigidity of the auxiliary rod due to the large span is solved. At the same time, the insulation cloth laying support set in the middle of the greenhouse span is avoided, making the operation simpler and more convenient.

[0016] 3. By setting up a motor, auxiliary rod, and guide assembly, the rotation of the motor is controlled so that the auxiliary rod can stay in a preset position, which makes it easy to control and start and stop, while meeting the different sunlight requirements of different crops. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an embodiment of the greenhouse shading net winding device of this application. Figure 1 .

[0018] Figure 2 This is a schematic diagram of an embodiment of the greenhouse shading net winding device of this application. Figure 2 .

[0019] Figure 3 This is a schematic diagram of another embodiment of the greenhouse shading net winding device of this application. Figure 1 .

[0020] Figure 4 This is a schematic diagram of another embodiment of the greenhouse shading net winding device of this application. Figure 1 .

[0021] Figure 5 This is a partial schematic diagram of the greenhouse shading net winding device of this application.

[0022] In the figure: winding assembly 100, drive component 110, auxiliary rod 120, winding wheel 121, sleeve 122, guide wire component 123, flexible pad 124, light-blocking cloth 130, guide assembly 200, auxiliary plate 210, friction component 220, reinforcing rod 230, counterweight component 240. Detailed Implementation

[0023] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0024] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please see Figures 1 to 5 This application provides a greenhouse shading cloth 130 winding device, including earthen walls on both sides of the greenhouse, and cotton cloth wrapped around the earthen walls. The device includes a winding assembly 100 and a guide assembly 200. The winding assembly 100 includes a driving member 110, an auxiliary rod 120, and the shading cloth 130. The driving member 110 is disposed at one end of the auxiliary rod 120 and is used to drive the auxiliary rod 120 to rotate. One end of the shading cloth 130 is fixed to the top of the back wall of the greenhouse, and the other end is fixed and wrapped around the auxiliary rod 120. The guide assembly 200 includes an auxiliary plate 210 and a friction member 220. The auxiliary plate 210 is disposed at the bottom of the driving member 110, and the friction member 220 is disposed on the auxiliary plate 210, used to determine the moving direction of the driving member 110 and limit the horizontal displacement of the driving member 110.

[0027] Specifically, the greenhouse includes a back wall and two gable walls on either side of the back wall. The gable walls are covered with cotton cloth, etc. The auxiliary rod 120 is made of, but is not limited to, steel pipes, iron pipes, etc., and has high strength. The length of the auxiliary rod 120 is selected according to the span of the greenhouse, preferably slightly larger than half of the span of the greenhouse. The shading cloth 130 is made of, but is not limited to, solid-color, cross-colored high-shading pure woven fabric, knitted shading cloth, etc. One end of the shading cloth 130 is fixed to the top of the back wall by bolts, clips, etc., and the other end is fixed to the auxiliary rod 120 and wrapped around the auxiliary rod 120. The driving component 110 is made of, but is not limited to, a motor. The shaft extension of the motor is connected to one end of the auxiliary rod 120 to drive the auxiliary rod 120 to rotate. The length of the power supply line of the motor is not less than the length of the shading cloth 130. A signal receiver is installed on the motor, and a signal generator is placed inside the greenhouse. The auxiliary plate 210 in the guide assembly 200 is made of, but is not limited to, wooden board or iron plate, and the friction component 220 is made of, but is not limited to, rubber wheel or wheel, preferably a rubber wheel.

[0028] Furthermore, in the initial state, the shading cloth 130 is completely rolled up on the auxiliary rod 120, and the drive unit 110 is located at the top of the gable wall. When shading is required, the signal generator controls the motor to rotate, and the motor rotation drives the auxiliary rod 120 to rotate (the rotation direction is opposite to the rolling direction), so that the shading cloth 130 rolled up on the auxiliary rod 120 is unfolded. Under the action of its own weight, the motor and the auxiliary rod 120 move downward along the arc surface of the greenhouse. At the same time, the friction element 220 on the lower section of the auxiliary plate 210 is in close contact with the cotton cloth on the arc surface of the gable wall and moves along the arc surface of the gable wall until one end of the auxiliary plate 210 contacts the ground or reaches the preset position, at which point the operator can manually stop it. The preset position is determined by the operator according to the different crops and crop positions in the greenhouse. Conversely, when the blackout cloth 130 needs to be retracted, the motor rotates (in the same direction as the rewinding direction), and the motor rotation drives the auxiliary rod 120 to rotate. The auxiliary rod 120 rotates by pulling and wraps the blackout cloth 130 around the auxiliary rod 120. As the auxiliary rod 120 rotates and rises, the auxiliary plate 210 and the friction element 220 slide upwards until the auxiliary rod 120 reaches the top of the back wall or the preset position and stops.

[0029] The technical solution of this application, which employs a greenhouse shading cloth 130 winding device, can achieve the following beneficial effects: 1. By setting friction element 220, friction element 220 can move on cotton cloth. When auxiliary rod 120 is offset to one side, the side wall of friction element 220 rubs and gets stuck in the folds that appear after the cotton cloth is pulled, thereby limiting the horizontal displacement of motor and auxiliary rod 120. At the same time, by setting friction element 220, it can move along the arc surface of the gable wall, which plays a good guiding role.

[0030] 2. By installing a greenhouse shading cloth 130 rolling device on each of the two opposite gable walls, the problem of insufficient rigidity of the auxiliary rod 120 due to the large span is solved. At the same time, the insulation cloth laying support set in the middle of the greenhouse span is avoided, making the operation simpler and more convenient.

[0031] 3. By setting up a motor, an auxiliary rod 120, and a guide assembly 200, the rotation of the motor is controlled so that the auxiliary rod 120 can stay in a preset position, which makes it easy to control and start and stop, while meeting the different sunlight requirements of different crops.

[0032] Please see Figure 1 and Figure 2 In one embodiment of this application, in order to solve the problem of the auxiliary plate 210 flipping or tilting at the end away from the motor, the friction element 220 is a small friction wheel, and is rotatably mounted on the side of the auxiliary plate 210 near the greenhouse by means of a bracket; a counterweight is provided on the side of the auxiliary plate 210 away from the small friction wheel, and the counterweight is used to keep the small friction wheel within the range of the earthen wall.

[0033] Both ends of the auxiliary plate 210 are equipped with brackets. The end of the bracket away from the auxiliary plate 210 is equipped with a rotating shaft. Both ends of the rotating shaft are equipped with small friction wheels, which are rubber wheels. The end of the auxiliary plate 210 away from the motor is equipped with a counterweight 240. The counterweight can be, but is not limited to, iron blocks, steel blocks, sandbags, etc., and is fixed by bolts, buckles, etc. The weight of the counterweight 240 is not less than the weight of the motor. When the motor drives the auxiliary rod 120 to rotate, the reaction force of the motor causes the auxiliary plate 210 to tilt or flip. At this time, the weight of the counterweight 240 is relatively large, which will drive the auxiliary plate 210 downward and make the small friction wheels adhere to the cotton cloth of the gable wall. When the auxiliary rod 120 rotates and moves upward, the small friction wheels rotate with the arc surface of the gable wall and are guided. At the same time, when the auxiliary rod 120 moves in the span direction of the greenhouse, the side of the small friction wheel is stuck in the fold of the cotton cloth, thereby restricting its horizontal displacement.

[0034] Please see Figure 3 and Figure 4In another embodiment of this application, the friction element 220 is a large friction wheel, which is rotatably disposed on both sides of the auxiliary plate 210, and the horizontal projection of the auxiliary plate 210 is located in the middle of the large friction wheel. For example, both ends of the auxiliary plate 210 are provided with through holes, and a rotating shaft is provided in the through holes. Large friction wheels are provided on both sides of the rotating shaft, and the horizontal projection of the motor is located within the range of the horizontal projection of the large friction wheel. When the motor drives the auxiliary rod 120 to rotate, the reaction force causes the auxiliary plate 210 to flip (when winding, the auxiliary plate 210 flips to the end of the motor closer to the back wall; when unfolding, the auxiliary plate 210 flips to the end of the motor away from the back wall). No matter how the large friction wheel flips, it is in contact with the cotton cloth, so that the purpose of not tilting when the motor drives the auxiliary rod 120 to rotate can be guaranteed without the need for the counterweight 240.

[0035] Based on the above scheme, the blackout fabric 130 is a knitted blackout fabric with a stitch count of not less than 10. The stitch count refers to the number of needle holes in the longitudinal or transverse direction on a 1-inch (approximately 2.54 cm) length of fabric. For example, 10 stitches equals 10 needle holes per inch. Blackout fabric with a stitch count of not less than 10 stitches belongs to medium-high density knitted fabric. By considering the height of the greenhouse and the overall weight, blackout fabric 130 with good density and tensile strength is selected to solve the problem of low blackout efficiency due to insufficient density, and also to solve the problem of deformation and damage of blackout fabric 130 due to excessive weight during winding.

[0036] In another embodiment of this application, in order to solve the problem of motor power supply line entanglement, a winding wheel 121 is provided at one end of the auxiliary rod 120 near the drive member 110, and the winding wheel 121 is used to wind up the power supply line of the drive member 110.

[0037] The take-up reel 121 is fitted onto the auxiliary rod 120, and the fitting is fixedly connected to ensure that the auxiliary rod 120 can drive the take-up reel 121 to rotate simultaneously. The power supply line of the motor is coiled on the take-up reel 121. When the motor is located at the top of the back wall, the power supply line is coiled on the take-up reel 121. When the motor drives the auxiliary rod 120 to rotate, causing the blackout cloth 130 to unfold, the power supply line unfolds from the take-up reel 121 onto the cotton cloth on the gable wall. Conversely, when the motor drives the auxiliary rod 120 to rotate, thereby winding up the blackout cloth 130, the power supply line is taken up by the take-up reel 121. This solves the problem of power supply line tangling and knotting.

[0038] Based on the above scheme, for easier winding, sleeves 122 are provided on both sides of the winding wheel 121. The sleeves 122 are mounted on the auxiliary rod 120 via bearings, and a conductor 123 is provided on the sleeve 122. The power supply line passes through the conductor 123 and is wound around the winding wheel 121. A flexible pad 124 is provided inside the conductor 123, and the flexible pad 124 is in contact with the power supply line.

[0039] Specifically, a sleeve 122 with a diameter larger than that of the auxiliary rod 120 is fitted onto the auxiliary rod 120. A bearing is installed inside the sleeve 122, with the outer shaft of the bearing connected to the inner wall of the sleeve 122. The inner shaft of the bearing is fixedly connected to the auxiliary rod 120. Two sleeves 122 are provided, respectively positioned on both sides of the winding reel 121. Each sleeve 122 is equipped with a support rod, and the ends of the two support rods are connected to a guide wire 123 (the guide wire 123 is a cylinder or an arc-shaped plate, preferably a cylinder, with a diameter larger than that of the feed rod). The power supply line has a diameter of [diameter missing], and a flexible pad 124 (made of, but not limited to, sponge, rubber, or rubber sheet) is placed inside the cylinder. The power supply line passes through the cylinder, contacts the flexible pad 124, and is wound onto the take-up reel 121. When the take-up reel 121 rotates and unfolds the power supply line, the power supply line first detaches from the take-up reel 121 and then is laid on the cotton cloth on the gable wall through the cylinder. Conversely, when winding, the power supply line is first aligned by the cylinder and then coiled onto the take-up reel 121. This solves the problem of the power supply line knotting during winding, which reduces the service life of the line. At the same time, the flexible pad 124 solves the problem of friction between the power supply line and the cylinder, which causes the insulation to break, thus improving the service life of the power supply line.

[0040] In another embodiment of this application, a reinforcing rod 230 is provided at one end of the driving member 110, the reinforcing rod 230 is fixedly connected to the auxiliary plate 210, and the end of the reinforcing rod 230 away from the driving member 110 is fixedly connected to the end of the counterweight 240.

[0041] The reinforcing rod 230 is made of, but is not limited to, stainless steel tubes, square tubes, etc. The length of the reinforcing rod 230 is not less than the length of the auxiliary plate 210. One end of the reinforcing rod 230 is connected to the motor and the other end is fixedly connected to the end of the auxiliary plate 210 away from the motor or connected to the counterweight 240, so as to solve the problem that the motor reaction force causes the connection between the motor and the auxiliary plate 210 to be unstable and thus detached.

[0042] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A shading net rewinding device for a solar greenhouse, installed on the earthen walls on both sides of the greenhouse, wherein the earthen walls are covered with cotton cloth, characterized in that, include: The winding assembly includes a drive unit, an auxiliary rod, and a light-blocking cloth. The drive unit is disposed at one end of the auxiliary rod and is used to drive the auxiliary rod to rotate. One end of the light-blocking cloth is fixed to the top of the back wall of the greenhouse, and the other end is fixed and wrapped around the auxiliary rod. A guide assembly, comprising an auxiliary plate and a friction element, wherein the auxiliary plate is disposed at the bottom of the drive component and the friction element is disposed on the auxiliary plate, for determining the moving direction of the drive component and limiting the horizontal displacement of the drive component.

2. The greenhouse shading net winding device as described in claim 1, characterized in that, The friction element is a small friction wheel, which is rotatably mounted on the side of the auxiliary plate near the greenhouse via a bracket; a counterweight is provided on the side of the auxiliary plate away from the small friction wheel, and the counterweight is used to keep the small friction wheel within the range of the earthen wall.

3. The greenhouse shading net winding device as described in claim 1, characterized in that, The friction element is a large friction wheel, which is rotatably mounted on both sides of the auxiliary plate, and the horizontal projection of the auxiliary plate is located in the middle of the large friction wheel.

4. The greenhouse shading net winding device as described in claim 1, characterized in that, The light-blocking fabric is a knitted sunshade fabric with a stitch count of not less than 10.

5. The greenhouse shading net winding device as described in claim 1, characterized in that, A winding wheel is provided at one end of the auxiliary rod near the driving component, and the winding wheel is used to wind up the power supply line of the driving component.

6. The greenhouse shading net winding device as described in claim 5, characterized in that, Sleeves are provided on both sides of the winding reel. The sleeves are mounted on the auxiliary rod via bearings, and wires are provided on the sleeves. The power supply line passes through the wires and is wound around the winding reel.

7. The greenhouse shading net winding device as described in claim 6, characterized in that, A flexible pad is provided inside the conductor, and the flexible pad is in contact with the power supply line.

8. The greenhouse shading net winding device as described in claim 2, characterized in that, A reinforcing rod is provided at one end of the driving component. The reinforcing rod is fixedly connected to the auxiliary plate, and the end of the reinforcing rod away from the driving component is fixedly connected to the end of the counterweight.

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