High-efficient and convenient method for preventing wind in northern greenhouse

Abstract

The application discloses a kind of northern greenhouse warm keeping quilt high efficiency convenient windproof method, it is provided with flexible curtain in the position close to side wall, the inside of flexible curtain is compacted on transparent plastic cloth, and it is located inside side wall, the outside of warm keeping quilt is pressed to the inside of flexible curtain, the extension direction of flexible curtain is parallel to warm keeping quilt, length is greater than or equal to warm keeping quilt, the outside of flexible curtain is hung in outside side wall;When wind, flexible curtain is rolled up under the action of wind pressure and wind flow disturbance, and is pressed to warm keeping quilt, under the action of wind pressure, it is continuously compacted on warm keeping quilt, and the outside gap of warm keeping quilt is completely blocked, so that warm keeping quilt is compacted on transparent plastic cloth.The application can efficiently and conveniently prevent wind for the warm keeping quilt of northern greenhouse, so as to improve the reliability of greenhouse warm keeping while reducing manual intervention and greatly reducing cost.

Description

Technical Field

[0001] This invention belongs to the field of agricultural greenhouse technology, and in particular relates to a method for efficiently and conveniently protecting the insulation blankets of greenhouses in northern regions from the wind. Background Technology

[0002] Northern greenhouses are facilities used for agricultural production in northern regions, creating suitable growing environments for crops. Among them, solar greenhouses utilize sunlight as their primary energy source, employing special roof designs such as semi-arched or arched shapes to enhance light utilization and effectively increase indoor temperatures, making them widely used in the north. In solar greenhouses, daytime indoor temperatures are controlled between 22-32℃, with nighttime minimum temperatures maintained above 12℃. For fruits and vegetables in plastic greenhouses, daytime temperatures are controlled between 25-32℃, with nighttime minimum temperatures above 10℃. Light management involves measures such as uncovering and covering the insulation blankets early in the morning and late in the evening, regularly cleaning the greenhouse film, and using supplemental lighting to enhance light intensity and promote photosynthesis.

[0003] As one of the insulation measures for greenhouses, the windproof performance of greenhouse insulation blankets directly affects the temperature stability inside the greenhouse. Traditional greenhouse insulation blankets are mostly made of materials such as straw mats and paper blankets, which have problems such as being heavy, having poor insulation performance, being easily damaged, and having poor windproof effect. When encountering strong winds, they are prone to fluttering and breaking, resulting in poor insulation effect and even affecting the structural safety of the greenhouse.

[0004] Currently, commonly used techniques include: 1. using tension ropes to tighten the insulation blanket; 2. installing windbreak structures on the outer sides of the insulation blanket's ends. In the first method, because the insulation blanket needs to be rolled up during the day and lowered at night to ensure sunlight and temperature inside the greenhouse, this method is very cumbersome. Even with tension ropes, the flexible insulation blanket is easily blown away by the wind and detaches from the ropes, preventing it from adhering to the greenhouse film and causing insulation failure, resulting in significant damage to the plants inside. In the second method, because the greenhouse film needs to be tensioned at both ends, the windbreak structure cannot be directly installed on the side walls at both ends. Instead, a separate windbreak structure needs to be installed, using steel frames and baffles erected from the ground. This structure is very expensive, placing a heavy burden on farmers who rely on greenhouse income. Furthermore, this windbreak structure also blocks sunlight, affecting plant growth and reducing yield. Third, this structure poses a significant potential risk, as it is prone to collapsing in strong winds, breaking the greenhouse film and damaging not only the greenhouse itself but also the plants inside, causing them to freeze and die, resulting in unbearable economic losses for farmers. Finally, due to the unpredictability of wind direction, this windbreak structure cannot completely block the wind from affecting the insulation blankets, causing insulation failure. Therefore, real-time manual monitoring of the wind's movement is still necessary, increasing manpower and mitigating the resulting uncertainties.

[0005] Therefore, how to efficiently and conveniently protect the insulation blankets of greenhouses in northern regions from the wind, improve the reliability of greenhouse insulation while reducing manual intervention and significantly lowering costs, is a technical problem that urgently needs to be solved. Summary of the Invention

[0006] A primary objective of this invention is to provide a highly efficient and convenient method for windproofing greenhouse insulation blankets in northern regions, thereby improving the reliability of greenhouse insulation while reducing manual intervention and significantly lowering costs.

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

[0008] As in one aspect of the present invention, a highly efficient and convenient windproof method for a greenhouse insulation blanket in northern regions is provided. 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 sheet is stretched and wrapped between the two side walls. An insulation blanket extends from the outer surface of the transparent plastic sheet. The upper end of the insulation blanket is connected to the top of the back wall. The insulation blanket can be rolled up and lowered. A flexible curtain is provided near the side wall, and the inner side of the flexible curtain is pressed tightly against the back wall. The outer side of the thermal blanket is pressed against the inner side of the flexible curtain on the transparent plastic sheet, which extends parallel to the thermal blanket and has a length greater than or equal to that of the thermal blanket. The outer side of the flexible curtain is suspended on the outer side of the side wall. When the wind blows, the flexible curtain rolls up under the action of vertical wind pressure and airflow disturbance and presses against the thermal blanket. Under the pressure of the wind, it continues to press against the thermal blanket and completely covers the outer gap of the thermal blanket, so that the thermal blanket is pressed firmly onto the transparent plastic sheet.

[0009] As in one embodiment of the present invention, the thickness of the flexible curtain is 1-2 mm.

[0010] As in one embodiment of the present invention, the flexible curtain is made of woven plastic fabric.

[0011] As in one embodiment of the present invention, the inner side of the flexible curtain is bound and secured by two steel wire ropes.

[0012] As in one embodiment of the present invention, the inner side of the flexible curtain has a folded portion that is wrapped around the two steel wire ropes.

[0013] As in one embodiment of the present invention, the width of the outer side of the thermal blanket pressing against the inner side of the flexible curtain is 10-30 cm.

[0014] As in one embodiment of the present invention, the outer width of the flexible curtain is 50-100 cm.

[0015] As in one embodiment of the present invention, the inner side of the flexible curtain includes pleats, such that the length of the outer side of the flexible curtain is greater than that of the inner side of the flexible curtain.

[0016] In one embodiment of the present invention, the weight of the thermal blanket causes it to press down onto the transparent plastic sheet from top to bottom. The lower part is connected to a roller shutter shaft, which is driven by a motor and is fixed when the blanket is lowered to prevent wind.

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

[0018] As can be seen from the above technical solution, the advantages and positive effects of the efficient and convenient windproof method for greenhouse insulation blankets in northern regions of the present invention are as follows:

[0019] In this invention, the flexible curtain rolls up under the influence of wind pressure and airflow disturbance, pressing it against the insulation blanket. Under the pressure of the wind, it continues to press firmly onto the insulation blanket, completely blocking the outer gaps of the insulation blanket. This presses the insulation blanket tightly onto the transparent plastic sheet, which can efficiently and conveniently protect the insulation blanket of greenhouses in northern regions from the wind, thereby improving the reliability of greenhouse insulation while reducing manual intervention and significantly reducing costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the efficient and convenient windproof method for greenhouse insulation blankets in northern China according to the present invention.

[0022] Figure 2 This is an enlarged schematic diagram of the flexible curtain and insulation blanket arrangement in one embodiment of the efficient and convenient windproof method for greenhouse insulation blankets in northern regions according to the present invention.

[0023] Figure 3 This is a schematic diagram of the state of the flexible curtain being rolled up when the wind blows, in one embodiment of the efficient and convenient windproof method for greenhouse insulation blankets in northern regions according to the present invention.

[0024] Figure 4 This is a schematic diagram of the state of the flexible hanging curtain pressing down on the top when the wind blows, in one embodiment of the efficient and convenient windproof method for greenhouse insulation in northern regions according to the present invention.

[0025] Drawing number explanation:

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

[0027] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0028] In the following description of various examples of the invention, reference is made to the accompanying drawings, which form part of the invention, and in which different exemplary structures, systems, and steps that can implement various aspects of the invention are shown by way of example. It should be understood that other specific embodiments of the 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 invention. Furthermore, while the terms “top,” “bottom,” “front,” “rear,” “side,” etc., may be used in this specification to describe various exemplary features and elements of the invention, these terms are used herein only for convenience, such as the orientation of the examples shown 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 invention.

[0029] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the efficient and convenient windproof method for greenhouse insulation blankets in northern China according to the present invention.

[0030] Figure 2 This is an enlarged schematic diagram of the flexible curtain and insulation blanket arrangement in one embodiment of the efficient and convenient windproof method for greenhouse insulation blankets in northern regions according to the present invention.

[0031] Figure 3 This is a schematic diagram of the state of the flexible curtain being rolled up when the wind blows, in one embodiment of the efficient and convenient windproof method for greenhouse insulation blankets in northern regions according to the present invention.

[0032] Figure 4 This is a schematic diagram of the state of the flexible hanging curtain pressing down on the top when the wind blows, in one embodiment of the efficient and convenient windproof method for greenhouse insulation in northern regions according to the present invention.

[0033] like Figure 1As shown, the present invention provides an efficient and convenient windproof method for greenhouse insulation in northern regions. 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 connected to the top of the back wall 1 and the lowest point reaching the ground. A transparent plastic sheet 3 is stretched and wrapped between the two side walls 2. The back wall 1 is usually placed on the shady side, and the transparent plastic sheet 3 is placed on the sunny side, forming a greenhouse inside.

[0034] A thermal blanket 4 extends from the outer surface of the transparent plastic sheet 3. The thermal blanket 4 can be a single piece or multiple pieces, depending on actual needs. The upper end of the thermal blanket 4 is connected to the top of the back wall 1, and the lower part is connected to a roller shutter shaft. The roller shutter shaft is connected to a motor, so that the thermal blanket 4 can be rolled up and down to achieve both covering and opening of the transparent plastic sheet 3.

[0035] Also refer to Figure 2 As shown, a flexible curtain 5 is installed near the side wall 1. The inner side of the flexible curtain 5 is pressed against the transparent plastic sheet 3 and is located inside the side wall 2. The outer side of the thermal blanket 4 is pressed against the inner side of the flexible curtain 5. The flexible curtain 5 extends parallel to the thermal blanket 4 and has a length greater than or equal to that of the thermal blanket 4. The outer side of the flexible curtain 5 is suspended outside the side wall 2.

[0036] like Figure 3 As shown, when the wind blows, the flexible curtain 5 is in a windless zone in the first area A under the action of wind F. The outer side of the flexible curtain is affected by the wind force, while the inner side is powerless, so it rolls up under the action of the upper and lower wind pressure and the disturbance of the airflow.

[0037] Then as Figure 4 As shown, the flexible curtain 5 is pressed against the thermal blanket 4 by the wind F. The wind F presses down on the top of the flexible curtain 5. There is no wind in the second area B between the flexible curtain 5 and the thermal blanket 4. Thus, under the pressure of the wind, the flexible curtain 5 is continuously pressed against the thermal blanket 4 and completely blocks the outer gap of the thermal blanket 4, so that the thermal blanket 4 is pressed against the transparent plastic sheet 3.

[0038] As in one embodiment of the present invention, the thickness of the flexible curtain 5 is 1-2 mm.

[0039] As in one embodiment of the present invention, the flexible curtain 5 is made of woven plastic fabric. The flexible curtain 5 needs to have a certain degree of toughness, but is lightweight, easily moved by the wind, yet not easily torn.

[0040] In one embodiment of the present invention, the inner side of the flexible curtain 5 is bound and secured by two steel wire ropes 6 and 7. The two ends of the two steel wire ropes 6 and 7 are respectively fixed to the back wall 1 and the ground and pulled taut.

[0041] As in one embodiment of the present invention, the inner side of the flexible curtain 5 has a folded portion that wraps around the two steel wire ropes 6 and 7. This structure ensures that the flexible curtain 5 is reliably fixed and will not be pulled out by the wind.

[0042] In one embodiment of the present invention, the width of the outer side of the thermal blanket 4 pressing against the inner side of the flexible curtain 5 is 10-30 cm.

[0043] In one embodiment of the present invention, the outer width of the flexible curtain 5 is 50-100 cm. This size ensures that the flexible curtain 5 completely seals the outer gap of the insulation blanket 4 and has a certain width for wind pressure. The wind force introduced by the flexible curtain 5 is used as the pressure to press the insulation blanket 4 against the transparent plastic sheet 3, further compacting the insulation blanket 4, making the insulation inside the greenhouse safer and more reliable.

[0044] As in one embodiment of the present invention, the inner side of the flexible curtain 5 includes pleats, such that the length of the outer side of the flexible curtain 5 is greater than that of the inner side. This structure increases the radial dimension of the flexible curtain 5, ensuring no gaps occur during pressing. Furthermore, this structure is highly effective in mitigating the tearing effect of wind on the flexible curtain 5, as the pleats reduce tension, thereby reducing the tearing effect of wind on the flexible curtain 5.

[0045] In one embodiment of the present invention, the weight of the thermal blanket 4 causes it to press down onto the transparent plastic sheet 3 from top to bottom. A roller shutter shaft (not shown in the figure) is connected to the lower part of the roller shutter shaft, which is driven by a motor and is fixed when in the windproof lowering state. The fixed roller shutter shaft ensures that the thermal blanket 4 will not be blown away by the wind F from below, further improving the reliability of the thermal blanket 4 adhering to the transparent plastic sheet 3.

[0046] In one 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. Because the wind force is very strong and the transparent plastic sheet needs to be tensioned, the tensioning structure requires a steel frame with its bottom deeply inserted into the ground. The transparent plastic sheet 3 is tightened symmetrically from front to back, and the safety of the transparent plastic sheet 3 must be guaranteed, therefore no damage should occur, ensuring the integrity of the structure.

[0047] As can be seen from the above technical solution, the advantages and positive effects of the efficient and convenient windproof method for greenhouse insulation blankets in northern regions of the present invention are as follows:

[0048] In this invention, the flexible curtain 5 rolls up under the influence of vertical wind pressure and airflow disturbance, pressing against the insulation blanket 4. Under the pressure of the wind, it remains firmly pressed against the insulation blanket 4, completely blocking the outer gaps of the insulation blanket 4, thus pressing the insulation blanket 4 tightly onto the transparent plastic sheet 3. The structure of this invention is very simple, and no manual intervention is required during wind protection; it relies entirely on natural forces. This allows for efficient and convenient wind protection of the insulation blanket 4 in northern greenhouses, thereby improving the reliability of greenhouse insulation while reducing manual intervention and significantly lowering costs.

[0049] Those skilled in the art should understand that the specific structures and processes shown in the above detailed embodiments are merely exemplary and not restrictive. Furthermore, those skilled in the art can combine the various technical features described above in various possible ways to form new technical solutions or make other modifications, all of which fall within the scope of this invention.

Claims

1. A highly efficient and convenient windproof method for a greenhouse insulation blanket in northern China, wherein 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 sheet is stretched and wrapped between the two side walls, an insulation blanket is extended from the outer surface of the transparent plastic sheet, the upper end of the insulation blanket is connected to the top of the back wall, and the insulation blanket can be rolled up and unrolled, characterized in that... A flexible curtain is installed near the side wall. The inner side of the flexible curtain is pressed against the transparent plastic sheet and is located inside the side wall. The outer side of the thermal blanket is pressed against the inner side of the flexible curtain. The flexible curtain extends parallel to the thermal blanket and has a length greater than or equal to that of the thermal blanket. The outer side of the flexible curtain is suspended outside the side wall. When the wind blows, the flexible curtain rolls up under the action of vertical wind pressure and airflow disturbance and presses against the thermal blanket. Under the pressure of the wind, it continues to press against the thermal blanket and completely covers the outer gap of the thermal blanket, so that the thermal blanket is pressed firmly against the transparent plastic sheet.

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

3. The efficient and convenient windproof method for greenhouse insulation blankets in northern regions according to claim 2, characterized in that: The flexible curtain is made of woven plastic fabric.

4. The efficient and convenient windproof method for greenhouse insulation blankets in northern regions according to claim 1, characterized in that: The inner side of the flexible curtain is secured by two steel wire ropes.

5. The efficient and convenient windproof method for greenhouse insulation blankets in northern regions according to claim 4, characterized in that: The inner side of the flexible curtain has a folded portion that is wrapped around the two steel wire ropes.

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

7. The efficient and convenient windproof method for greenhouse insulation blankets in northern regions according to claim 6, characterized in that: The outer width of the flexible curtain is 50-100 cm.

8. The efficient and convenient windproof method for greenhouse insulation blankets in northern regions according to claim 7, characterized in that: The inner side of the flexible curtain includes pleats, such that the outer side of the flexible curtain is longer than the inner side.

9. The efficient and convenient windproof method for greenhouse insulation blankets in northern regions according to claim 1, characterized in that: The weight of the thermal blanket causes it to press down onto the transparent plastic sheet from top to bottom. The lower part is connected to a roller shutter shaft, which is driven by a motor and is fixed when the blanket is lowered to prevent wind.

10. The efficient and convenient windproof method for greenhouse insulation blankets in northern regions according to claim 1, characterized in that: The transparent plastic sheet is wrapped around the outside of the side wall and tensioned by a tensioning structure.

Images