Efficient and convenient windproof method for heat preservation quilt of northern greenhouse

Abstract

According to the efficient and convenient windproof method for the heat preservation quilt of the greenhouse in the north, a flexible curtain is arranged at the position close to a side wall, the inner side portion of the flexible curtain is pressed on transparent plastic cloth and located on the inner side of the side wall, the outer side portion of the heat preservation quilt is pressed against the inner side portion of the flexible curtain, and the extending direction of the flexible curtain is parallel to the heat preservation quilt; the outer side part of the flexible curtain is hung on the outer side of the side wall; when wind blows, the flexible curtain is rolled up under the action of upper and lower wind pressure and wind flow disturbance, is pressed towards the warm-keeping quilt, is continuously pressed on the warm-keeping quilt under the action of wind force pressing, and completely shields the outer side gap of the warm-keeping quilt, so that the warm-keeping quilt is pressed on the transparent plastic cloth. By means of the windproof device, windproof can be efficiently and conveniently conducted on the warm-keeping quilt of the northern greenhouse, and therefore manual intervention is reduced and cost is greatly reduced while the warm-keeping reliability of the greenhouse is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural greenhouses, and particularly relates to a method for efficiently and conveniently preventing the heat-preserving quilt of a northern greenhouse from being affected by wind. Background Technique

[0002] Northern greenhouses are facilities used for agricultural production in northern regions, which can create a suitable growth environment for crops. Among them, solar greenhouses use sunlight as the main energy source, and enhance the light utilization rate through special roof designs such as semi-arch or arch shapes, which can effectively increase the indoor temperature and are widely used in the north. The indoor temperature of solar greenhouses is controlled at 22 - 32°C during the day, and the lowest temperature at night is maintained above 12°C. For plastic greenhouses growing fruit and vegetable crops, the daytime temperature is controlled at 25 - 32°C, and the lowest nighttime temperature is above 10°C. Light management enhances the light intensity through measures such as uncovering and covering the heat-preserving quilt early and late, regularly cleaning the greenhouse film, and configuring supplementary lights to promote photosynthesis.

[0003] As one of the heat preservation measures of greenhouse greenhouses, the windproof performance of the heat-preserving quilt at the shed head directly affects the temperature stability inside the greenhouse. Traditional greenhouse heat-preserving quilts mostly use materials such as straw curtains and paper quilts, which have problems such as heavy weight, poor heat preservation performance, easy damage, and poor windproof effect. When encountering strong winds, problems such as fluttering and damage are likely to occur, resulting in poor heat preservation effect and even affecting the structural safety of the greenhouse.

[0004] Currently, the commonly used technical means in the prior art include: 1. Using a pressing rope to press the heat-preserving quilt; 2. Setting a wind-blocking structure outside the end of the heat-preserving quilt. In the first method, since the heat-preserving quilt needs to be rolled up during the day and put down at night to ensure sunlight and temperature inside the shed, the operation using this method is very cumbersome. Moreover, even if a pressing rope is used to press the heat-preserving quilt, due to the flexibility of the heat-preserving quilt, it is very easy to be blown by the wind and break away from the pressing rope, causing the heat-preserving quilt not to be close to the greenhouse film, resulting in heat preservation failure and great losses to the plants inside the shed. In the second method, since the greenhouse film needs to be tensioned at both ends, the wind-blocking structure cannot be directly set on the side walls at both ends, but a separate wind-blocking structure needs to be installed, and steel frames and baffles are erected from the ground for shielding. The cost of this structure is very high, which is a heavy burden for farmers who rely on greenhouse income. Moreover, this wind-blocking structure will also block sunlight, thus affecting the growth of plants inside the shed and reducing the yield. Third, this structure has great potential risks and is prone to falling down on windy days and breaking the greenhouse film, which not only damages the greenhouse but also causes the plants inside the shed to freeze to death, bringing unbearable economic losses to farmers. Finally, due to the uncertainty of the wind direction, this wind-blocking structure cannot completely block the influence of the incoming wind on the heat-preserving quilt, resulting in heat preservation failure. Therefore, it is also necessary to observe the movement in real time manually, increasing the labor force of personnel and the resulting uncertainty.

[0005] Therefore, how to efficiently and conveniently prevent the heat-preserving quilts of northern greenhouses from being affected by wind, improve the reliability of greenhouse heat preservation while reducing manual intervention and significantly lowering costs is a technical problem that urgently needs to be solved at present. Summary of the Invention

[0006] A main object of the present invention is to provide an efficient and convenient method for preventing the heat-preserving quilts of northern greenhouses from being affected by wind, which can improve the reliability of greenhouse heat preservation while reducing manual intervention and significantly lowering costs.

[0007] To achieve the above-mentioned invention object, the present invention adopts the following technical solutions:

[0008] As one aspect of the present invention, there is provided an efficient and convenient method for preventing the heat-preserving quilts of northern greenhouses from being affected by wind. The greenhouse includes a back wall and side walls at both ends of the back wall. The side walls are arc-shaped, with the highest point connected to the top of the back wall and the lowest point reaching the ground. A transparent plastic cloth is tightly wrapped and stretched between the two side walls. A heat-preserving quilt is extended and arranged on the outer side surface of the transparent plastic cloth. The upper end of the heat-preserving quilt is connected and arranged on the top of the back wall. The heat-preserving quilt can be wound and lowered. A flexible hanging curtain is arranged at a position close to the side wall. The inner part of the flexible hanging curtain is pressed against the transparent plastic cloth and is located inside the side wall. The outer part of the heat-preserving quilt presses against the inner part of the flexible hanging curtain. The extending direction of the flexible hanging curtain is parallel to that of the heat-preserving quilt, and its length is greater than or equal to that of the heat-preserving quilt. The outer part of the flexible hanging curtain is hung outside the side wall; when the wind blows, the flexible hanging curtain rolls up under the action of the upper and lower wind pressures and wind flow disturbances, and presses towards the heat-preserving quilt. Under the action of the wind pressure, it continuously presses against the heat-preserving quilt and completely blocks the outer gap of the heat-preserving quilt, so that the heat-preserving quilt is pressed against the transparent plastic cloth.

[0009] As an embodiment of the present invention, the thickness of the flexible hanging curtain is 1-2 millimeters.

[0010] As an embodiment of the present invention, the flexible hanging curtain is a plastic woven cloth.

[0011] As an embodiment of the present invention, the inner part of the flexible hanging curtain is tightly fixed by bundling with two steel wires.

[0012] As an embodiment of the present invention, the inner part of the flexible hanging curtain has a folded-back part that winds around the two steel wires.

[0013] As an embodiment of the present invention, the width of the outer part of the heat-preserving quilt pressing against the inner part of the flexible hanging curtain is 10-30 centimeters.

[0014] As an embodiment of the present invention, the width of the outer part of the flexible hanging curtain is 50-100 centimeters.

[0015] In one embodiment of the present invention, the inner part of the flexible hanging curtain includes pleats, such that the length of the outer part of the flexible hanging curtain is greater than that of the inner part of the flexible hanging curtain.

[0016] In one embodiment of the present invention, the self-weight of the heat-preserving quilt presses the heat-preserving quilt onto the transparent plastic sheet from top to bottom. The lower part is connected to a rolling curtain shaft, which is driven by a motor and fixed when the wind-proof state is lowered.

[0017] In one embodiment of the present invention, the transparent plastic sheet is wrapped around the outside of the side wall and tightened by a tensioning structure.

[0018] From the above technical solutions, the advantages and positive effects of the efficient and convenient wind-proof method for the northern greenhouse heat-preserving quilt of the present invention are as follows:

[0019] In the present invention, the flexible hanging curtain rolls up under the action of the upper and lower wind pressures and the wind flow disturbance, and presses against the heat-preserving quilt. Under the action of the wind pressure, it is continuously pressed against the heat-preserving quilt and completely blocks the outer gap of the heat-preserving quilt, so that the heat-preserving quilt is pressed against the transparent plastic sheet, which can efficiently and conveniently prevent wind for the heat-preserving quilt of the northern greenhouse, thereby improving the reliability of greenhouse heat preservation while reducing manual intervention and significantly reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the efficient and convenient wind-proof method for the northern greenhouse heat-preserving quilt of the present invention.

[0022] Figure 2 It is an enlarged structural schematic diagram of the layout of the flexible hanging curtain and the heat-preserving quilt in an embodiment of the efficient and convenient wind-proof method for the northern greenhouse heat-preserving quilt of the present invention.

[0023] Figure 3 It is a schematic diagram of the state of the flexible hanging curtain rolled up when the wind blows in an embodiment of the efficient and convenient wind-proof method for the northern greenhouse heat-preserving quilt of the present invention.

[0024] Figure 4 It is a schematic diagram of the state of the flexible hanging curtain pressing on the top when the wind blows in an embodiment of the efficient and convenient wind-proof method for the northern greenhouse heat-preserving quilt of the present invention.

[0025] Explanation of drawing numbers:

[0026] 1. Back wall; 2. Side wall; 3. Transparent plastic sheet; 4. Thermal insulation quilt; 5. Flexible hanging curtain; 6 / 7. Steel wire rope; A. First area; B. Second area; F. Wind. Detailed implementation manners

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their detailed descriptions will be omitted.

[0028] In the following description of different examples of the present invention, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustration different exemplary structures, systems, and steps in which aspects of the present invention may be implemented. It should be understood that other specific solutions of components, structures, exemplary devices, systems, and steps may be used and structural and functional modifications may be made without departing from the scope of the present invention. Also, although terms such as "top", "bottom", "front", "rear", "side", etc. may be used in this specification to describe different exemplary features and elements of the present invention, these terms are used herein for convenience only, e.g., the orientation of the examples described in the drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present invention.

[0029] Figure 1 It is a schematic three-dimensional structure diagram of an embodiment of the method for efficiently and conveniently preventing wind for the thermal insulation quilt of a greenhouse in the north of the present invention.

[0030] Figure 2 It is a schematic enlarged structure diagram of the layout of the flexible hanging curtain and the thermal insulation quilt in an embodiment of the method for efficiently and conveniently preventing wind for the thermal insulation quilt of a greenhouse in the north of the present invention.

[0031] Figure 3 It is a schematic diagram of the state of rolling up the flexible hanging curtain when the wind blows in an embodiment of the method for efficiently and conveniently preventing wind for the thermal insulation quilt of a greenhouse in the north of the present invention.

[0032] Figure 4 It is a schematic diagram of the state of pressing the top flexible hanging curtain when the wind blows in an embodiment of the method for efficiently and conveniently preventing wind for the thermal insulation quilt of a greenhouse in the north of the present invention.

[0033] As Figure 1As shown in the figure, the present invention provides an efficient and convenient method for preventing wind in a northern greenhouse. The greenhouse includes a back wall 1 and side walls 2 at both ends of the back wall. The side walls 2 are arc-shaped, with the highest point connecting the top of the back wall 1 and the lowest point reaching the ground. A transparent plastic sheet 3 is tightly wrapped between the two side walls 2. The back wall 1 is usually set on the shady side, and the transparent plastic sheet 3 is set on the sunny side, forming a greenhouse inside.

[0034] A heat preservation quilt 4 is extended and arranged on the outer side surface of the transparent plastic sheet 3. The heat preservation quilt 4 can be a whole piece or multiple pieces, which is set according to actual needs. The upper end of the heat preservation quilt 4 is connected and set on the top of the back wall 1, and the lower part is connected to a rolling curtain shaft, and the rolling curtain shaft is connected to a motor, so that the heat preservation quilt 4 can be wound and lowered to realize the shielding and opening of the transparent plastic sheet 3.

[0035] At the same time, referring to Figure 2 As shown in the figure, a flexible hanging curtain 5 is arranged at a position close to the side wall 1. The inner side part of the flexible hanging curtain 5 is pressed tightly on the transparent plastic sheet 3 and is located inside the side wall 2. The outer side part of the heat preservation quilt 4 presses against the inner side part of the flexible hanging curtain 5. The extending direction of the flexible hanging curtain 5 is parallel to that of the heat preservation quilt 4, and the length is greater than or equal to that of the heat preservation quilt 4. The outer side part of the flexible hanging curtain 5 is hung outside the side wall 2.

[0036] As Figure 3 As shown in the figure, when the wind blows, under the action of the wind F, the first area A of the flexible hanging curtain 5 is a windless area. The outer side surface of the flexible hanging curtain is affected by the wind force, while the inner side surface has no force acting on it, so it rolls up under the action of the upper and lower wind pressures and the wind flow disturbance.

[0037] Subsequently, as Figure 4 As shown in the figure, the flexible hanging curtain 5 is pressed against the heat preservation quilt 4 under the drive of the wind F. The wind F presses the upper surface of the flexible hanging curtain 5. There is no wind action in the second area B between the flexible hanging curtain 5 and the heat preservation quilt 4. Thus, under the action of the wind pressing force, the flexible hanging curtain 5 is continuously pressed tightly on the heat preservation quilt 4 and completely shields the outer gap of the heat preservation quilt 4, so that the heat preservation quilt 4 is pressed tightly on the transparent plastic sheet 3.

[0038] In an embodiment of the present invention, the thickness of the flexible hanging curtain 5 is 1-2 millimeters.

[0039] In an embodiment of the present invention, the flexible hanging curtain 5 is a plastic woven cloth. The flexible hanging curtain 5 needs a certain toughness, but it is light in weight, easy to be driven by the wind, and not easy to be torn.

[0040] In an embodiment of the present invention, the inner side part of the flexible hanging curtain 5 is fixed by being bundled and pressed tightly through two steel wires 6 and 7. The two ends of the two steel wires 6 and 7 are respectively fixed on the back wall 1 and the ground and tightened.

[0041] In an embodiment of the present invention, the inner part of the flexible hanging curtain 5 has a folded-back portion that is wound around the two steel wire ropes 6 and 7. This structure ensures that the flexible hanging curtain 5 is fixed very reliably and will not be torn out by the wind.

[0042] In an embodiment of the present invention, the width of the outer part of the heat-insulating quilt 4 pressing against the inner part of the flexible hanging curtain 5 is 10 - 30 cm.

[0043] In an embodiment of the present invention, the width of the outer part of the flexible hanging curtain 5 is 50 - 100 cm. This size can ensure that the flexible hanging curtain 5 completely closes the outer gap of the heat-insulating quilt 4 and has a certain width of wind pressure. By borrowing the wind force introduced by the flexible hanging curtain 5 as the pressure to press the heat-insulating quilt 4 against the transparent plastic sheet 3, the heat-insulating quilt 4 is further compacted, making the heat preservation inside the greenhouse safer and more reliable.

[0044] In an embodiment of the present invention, the inner part of the flexible hanging curtain 5 includes folds, such that the length of the outer part of the flexible hanging curtain is greater than that of the inner part of the flexible hanging curtain 5. This structure increases the radial dimension of the flexible hanging curtain 5, ensuring that there are no omissions when achieving the pressing effect. Moreover, this structure also has a great effect on reducing the tearing of the wind force on the flexible hanging curtain 5 because the folded structure can reduce the tension force, thereby reducing the tearing effect of the wind force F on the flexible hanging curtain 5.

[0045] In an embodiment of the present invention, the self-weight of the heat-insulating quilt 4 presses the heat-insulating quilt onto the transparent plastic sheet 3 from top to bottom. The lower part is connected to a rolling curtain shaft (not shown in the figure), and the rolling curtain shaft is driven by a motor and fixed when in the wind-proof state of being lowered. The fixation of the rolling curtain shaft ensures that the heat-insulating quilt 4 will not be blown by the wind force F from the lower part, further improving the reliability of the heat-insulating quilt 4 against the transparent plastic sheet 3.

[0046] In an embodiment of the present invention, the transparent plastic sheet 3 is wrapped around the outside of the side wall 2 and tensioned by a tensioning structure. Since the wind force is very large and the transparent plastic sheet needs to be tensioned, the tensioning structure needs to be provided with a steel frame. The bottom of the steel frame is deeply inserted into the ground, and through symmetric tensioning front and back, the transparent plastic sheet 3 is tightened. Moreover, the safety of the transparent plastic sheet 3 must be ensured, so there should be no damage to ensure the integrity of the structure.

[0047] From the above technical solutions, the advantages and positive effects of the high-efficiency, convenient and wind-proof method for the heat-insulating quilt of the northern greenhouse of the present invention are as follows:

[0048] In the present invention, the flexible hanging curtain 5 rolls up under the action of the upper and lower wind pressures and the disturbance of the air flow, and presses against the heat preservation quilt 4. Under the action of the wind pressure, it continuously presses on the heat preservation quilt 4 and completely blocks the outer gap of the heat preservation quilt 4, so that the heat preservation quilt 4 is pressed on the transparent plastic cloth 3. The structure of the present invention is very simple, and there is no need for manual intervention during the wind blocking process. It is completely driven by natural forces, can efficiently and conveniently prevent the heat preservation quilt 4 of the northern greenhouse from being affected by the wind, thereby improving the reliability of the greenhouse heat preservation while reducing manual intervention and significantly reducing costs.

[0049] Those of ordinary skill in the art to which the present invention pertains should understand that the specific structures and technological processes shown in the above specific implementation part are merely exemplary, rather than restrictive. Moreover, those of ordinary skill in the art to which the present invention pertains can combine the various technical features shown above in various possible ways to form new technical solutions, or make other modifications, and all fall within the scope of the present invention.

Claims

1. An efficient and convenient method for preventing wind in a northern greenhouse insulation quilt. The greenhouse includes a back wall and side walls at both ends of the back wall. The side walls are arc-shaped, with the highest point connected to the top of the back wall and the lowest point reaching the ground. A transparent plastic cloth is tightly wrapped between the two side walls. An insulation quilt is extended and arranged on the outer side surface of the transparent plastic cloth. The upper end of the insulation quilt is connected and arranged on the top of the back wall. The insulation quilt can be wound up and put down. It is characterized in that, A flexible hanging curtain is provided near the side wall. The inner part of the flexible hanging curtain is pressed against the transparent plastic cloth and is located inside the side wall. The outer part of the heat preservation quilt presses against the inner part of the flexible hanging curtain. The extending direction of the flexible hanging curtain is parallel to the heat preservation quilt, and its length is greater than or equal to that of the heat preservation quilt. The outer part of the flexible hanging curtain is hung outside the side wall; when the wind blows, the flexible hanging curtain rolls up under the action of the upper and lower wind pressure and wind flow disturbance, and presses against the heat preservation quilt, and continuously presses against the heat preservation quilt under the action of the wind pressure, and completely blocks the outer gap of the heat preservation quilt, so that the heat preservation quilt is pressed against the transparent plastic cloth.

2. The efficient and convenient windproof method for the thermal insulation quilt in the northern greenhouse according to claim 1, characterized in that: The thickness of the flexible hanging curtain is 1-2 mm.

3. The method for efficiently and conveniently preventing wind of the thermal insulation quilt for northern greenhouses according to claim 2, characterized in that: The flexible hanging curtain is a plastic woven cloth.

4. The efficient and convenient windproof method for the northern greenhouse heat preservation quilt according to claim 1, characterized in that: The inner part of the flexible hanging curtain is fixed by bundling and pressing with two steel wires.

5. The efficient and convenient windproof method for the thermal insulation quilt in the northern greenhouse according to claim 4, characterized in that: The inner part of the flexible hanging curtain has a folded-back part that wraps around the two steel wires.

6. The efficient and convenient windproof method for the thermal insulation quilt in the northern greenhouse according to claim 1, characterized in that: The width of the outer part of the heat preservation quilt pressing against the inner part of the flexible hanging curtain is 10-30 cm.

7. The efficient and convenient windproof method for the northern greenhouse heat preservation quilt according to claim 6, characterized in that: The width of the outer part of the flexible hanging curtain is 50-100 cm.

8. The efficient and convenient windproof method for the northern greenhouse heat preservation quilt according to claim 7, characterized in that: The inner part of the flexible hanging curtain includes wrinkles, so that the length of the outer part of the flexible hanging curtain is greater than that of the inner part of the flexible hanging curtain.

9. The efficient and convenient windproof method for the northern greenhouse heat preservation quilt according to claim 1, characterized in that: The self-weight of the heat preservation quilt presses the heat preservation quilt onto the transparent plastic cloth from top to bottom. The lower part is connected to a rolling curtain shaft, which is driven by a motor and fixed when the rolling curtain is in the lowered windproof state.

10. The efficient and convenient windproof method for the northern greenhouse heat preservation quilt according to claim 1, characterized in that: The transparent plastic cloth is wrapped outside the side wall and tightened by a tensioning structure.

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