Novel double-layer sunlight shed

Abstract

The utility model relates to the technical field of facility agricultural engineering, in particular to a novel double-layer sunshine shed which comprises a sunshine shed framework, a ventilation device connected with the sunshine shed framework and a shed film dust and snow removing device, a pressure sensor is arranged between an outer-layer framework and a shed film, and when the pressure sensor detects that the pressure on the shed film exceeds a certain value, the ventilation device and the shed film dust and snow removing device are started. Dust and accumulated snow attached to the greenhouse film on the outer-layer framework are washed away through the greenhouse film dust and snow removing device, so that the influence on lighting of the sunlight greenhouse is avoided, and the labor intensity of personnel is reduced; the ventilation device is arranged on the top of the sunshine shed framework, the side ventilation openings are formed in the two sides of the ventilation device, the side ventilation openings are formed in the vertical direction, the sunshine shed can achieve normal ventilation in light rain weather, and rainwater cannot enter the sunshine shed in the light rain weather; a wind speed and wind direction sensor is arranged at the side ventilation opening and electrically connected with the PLC, and the wind shielding film at the side ventilation opening can be automatically closed in strong wind days and heavy rain days.

Description

Technical Field

[0001] The utility model relates to the technical field of facility agricultural engineering, in particular to a novel double-layer sun shed. Background Art

[0002] Greenhouses are the main facilities for facility agriculture production in my country. They have good insulation effects and can provide suitable light and temperature for crops to grow in winter. They play an extremely important role in the production and supply of off-season crops in winter and spring in my country. The production of greenhouse crops is mainly through the "greenhouse effect". During the day, solar radiation energy is intercepted to increase the indoor temperature and soil temperature. At night, the soil releases heat to the room and is covered with plastic film for insulation. During the long-term use of greenhouses in the prior art, a large amount of dust will adhere to the roof, or a large amount of rain and snow will accumulate in winter. This will greatly reduce the lighting effect of the greenhouse, and it is time-consuming and laborious to clean it manually. In addition, the existing greenhouses are usually provided with vents on the top of the greenhouse film, and the opening of the vents faces upward, which has the disadvantage of leaking rain in the greenhouse on rainy days; in addition, in the vast areas of the north, there are many windy days. During the day, due to the open vents at the greenhouse film, the strong wind can easily lift and tear the greenhouse film, causing great economic losses. Utility Model Content

[0003] The utility model aims to provide a novel double-layer sun shed to overcome the problems existing in the existing equipment.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a novel double-layer sun shed, comprising a sun shed frame, a ventilation device connected to the sun shed frame and a dust and snow removal device for the sun shed film, the sun shed frame comprising an outer frame and an inner frame, both of which are covered with sun shed film; the ventilation device comprises an arch frame arranged on the top of the outer frame, the arch frame is covered with sun shed film, the sun shed film covering both sides of the arch frame are respectively provided with side vents along the length direction of the sun shed frame, a windshield film is fixedly installed at the side vents, the windshield film is connected to an electric film roll, and the side vents are arranged along the vertical The side vents are provided with wind speed and direction sensors; the greenhouse film dust and snow removal device comprises a water tank arranged on the side of the sun shed frame close to the ridge and a first water pump arranged on the inner side of the water tank, the lower end of the water outlet pipe passes through the water tank and is connected to the first water pump, the upper end of the water outlet pipe extends upward along the side of the sun shed frame close to the ridge and passes through the arch of the ventilation device, and is connected to multiple nozzles through multiple branch pipes, and multiple pressure sensors are arranged between the outer frame and the greenhouse film, and the wind speed and direction sensor, electric film roller, pressure sensor and the first water pump are electrically connected to the PLC controller.

[0005] On the basis of the above technical solution, the present invention can also be improved as follows:

[0006] As a further improvement of the above technical solution, the outer frame and the inner frame are connected to the support rod through a connecting piece, and a retractable thermal quilt is fixed on the top of the inner frame and below the outer frame. The retraction and extension of the thermal quilt is controlled by adding an electric roller shutter machine.

[0007] As a further improvement of the above technical solution, a temperature sensor is provided in the sun shed frame, and the temperature sensor and the electric roller shutter machine are electrically connected to the PLC controller.

[0008] As a further improvement of the above technical solution, the arch frame protrudes upward relative to the outer frame, the top of the arch frame is arranged in an arc shape, and the two sides of the arch frame are connected and fixed near the ridge of the outer frame through connecting parts.

[0009] As a further improvement of the above technical solution, the outer frame, inner frame, support rods and arch frame are made of hot-dip galvanized steel material, and galvanized connectors and galvanized screws are used at the joints between the outer frame and the inner frame and at the joints between the outer frame and the arch frame.

[0010] As a further improvement of the above technical solution, the greenhouse film dust and snow removal device also includes a water collecting tank arranged on the other side of the sun shed frame away from the ridge and a second water pump arranged at the bottom of the outer side of the water tank. The second water pump is connected to the inside of the water tank, and a return pipe is connected between the input end of the second water pump and the water collecting tank.

[0011] As a further improvement of the above technical solution, a photovoltaic panel is arranged on the outside of the sun shed frame, the photovoltaic panel is electrically connected to a battery control group, the battery control group includes a battery, a heating tube is arranged inside the water tank, and the battery control group is electrically connected to the heating tube.

[0012] The beneficial effects of the utility model are as follows: the above-mentioned new double-layer sun shed provided by the utility model can wash away the dust and snow attached to the shed film on the outer frame by arranging a shed film dust and snow removal device, so as to avoid affecting the lighting of the sun shed and reduce the labor intensity of personnel; in addition, a plurality of pressure sensors are arranged between the outer frame and the shed film, and the pressure sensors are electrically connected to the PLC controller. When the pressure sensors detect that the pressure on the shed film exceeds a certain value, the dust and snow attached to the shed film on the outer frame can be automatically cleaned; in addition, by arranging a ventilation device on the top of the sun shed frame and arranging side vents on both sides of the ventilation device, the side vents are arranged vertically, so that the sun shed can be ventilated normally in light rain weather, and rainwater will not enter the sun shed in light rain weather; in addition, a wind speed and direction sensor is arranged at the side vent, and the wind speed and direction sensor is electrically connected to the PLC controller, so that the wind-shielding film at the side vent can be automatically closed in windy and rainy days. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural schematic diagram of a new double-layer sun shed provided by a preferred embodiment of the utility model;

[0015] Figure 2 yes Figure 1 The control structure diagram of the sun shed;

[0016] In the figure: 11, support rod; 12, outer frame; 14, inner frame; 2, ventilation device; 21, arch frame; 22, side vent; 23, electric film roller; 141, thermal blanket; 142, electric roller shutter; 41, wind speed and direction sensor; 42, PLC controller; 43, temperature sensor; 44, pressure sensor; 51, water storage tank; 52, water collecting tank; 53, first water pump; 54, second water pump; 55, water outlet pipe; 551, solenoid valve; 552, nozzle; 56, photovoltaic panel; 57, battery control group; 58, heating pipe; 59, return pipe. DETAILED DESCRIPTION

[0017] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0018] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0020] like Figure 1 , Figure 2 As shown, a novel double-layer sun shed provided by a preferred embodiment of the utility model includes a sun shed frame and a ventilation device 2 connected to the sun shed frame and a shed film dust and snow removal device. Two side vents 22 are provided on both sides of the ventilation device 2. The side vents 22 on both sides of the ventilation device 2 are beneficial to ventilation and cooling under high temperature conditions in summer. The side vents 22 can be opened for ventilation and cooling in the high temperature season in summer.

[0021] The sun shed frame includes an arc-shaped outer frame 12 and an arc-shaped inner frame 14. The outer frame 12 and the inner frame 14 are connected to the support rod 11 through a connecting piece, which can be a clamp and a screw. The outer frame 12 and the inner frame 14 are covered with a shed film, which is a PO film. A retractable insulation blanket 141 is fixed on the top of the inner frame 14 and below the outer frame 12. The outer frame 12 is arranged above the insulation blanket 141, and the outer frame 12 is covered with a shed film, which can prevent rain and snow from wetting the insulation blanket 141 and avoid the insulation blanket 141 from collapsing the sun shed due to water absorption. The insulation blanket 141 is controlled by installing an electric roller shutter 142. When the outside temperature drops to a level that is not suitable for crop growth and development, the insulation blanket 141 can be rolled up during the day for normal lighting, and the insulation blanket 141 can be unfolded in the evening to cover the inner frame 14 for nighttime insulation.

[0022] The ventilation device 2 includes an arch frame 21 arranged on the top of the outer frame 12, the arch frame 21 protrudes upward relative to the outer frame 12, the top of the arch frame 21 is arranged in an arc shape, and the arch frame 21 is covered with a shed film, which is a PO film. The two sides of the arch frame 21 are connected and fixed to the ridge near the outer frame 12 through connectors, and the shed film covering the two sides of the arch frame 21 is respectively provided with the side vents 22 along the length direction of the sun shed frame, and the insect-proof net and the wind-proof film are fixedly installed in sequence at the side vents 22 through the galvanized film pressing groove, and the insect-proof net is a 60-mesh insect-proof net, and the wind-proof film is connected to an electric film roll 23, and the side vents 22 are arranged vertically. The shed film covering both sides of the arch frame 21 is provided with side vents 22, so that the hot air in the sun shed rises to the top and is directly discharged along the side vents 22 on both sides of the arch frame 21. The air outlet area is large and the air release is convenient. In addition, the side vents 22 are arranged vertically, so the sun shed can be ventilated normally in light rain weather, and rainwater will not enter the sun shed in light rain weather.

[0023] In this embodiment, the outer frame 12, the inner frame 14, the support rods 11 and the arch frame 21 are all made of hot-dip galvanized steel materials. The joints between the outer frame 12 and the inner frame 14 and the joints between the outer frame 12 and the arch frame 21 are made of galvanized connectors and galvanized screws. There are no welds on the entire sun shed to avoid rust and extend its service life.

[0024] The greenhouse film dust and snow removal device includes a water tank 51 arranged on the side of the sun shed frame close to the ridge, a water collecting tank 52 arranged on the other side of the sun shed frame away from the ridge, a first water pump 53 arranged on the inner side of the water tank 51 and a second water pump 54 arranged on the outer bottom of the water tank 51, and the second water pump 54 is connected to the inside of the water tank 51.

[0025] A return pipe 59 is connected between the input end of the second water pump 54 and the water collecting tank 52. The return pipe 59 is buried underground to avoid rupture and affect the rainwater collection effect. The lower end of the outlet pipe 55 passes through the water storage tank 51 and is connected to the output end of the first water pump 53. A solenoid valve 551 is provided at the lower end of the outlet pipe 55. The upper end of the outlet pipe 55 extends upward along the side of the sun shed frame close to the ridge and passes through the arch 21 of the ventilation device 2, and is connected to multiple nozzles 552 through multiple branch pipes. The outlet pipe 55 and the multiple nozzles 552 are close to the shed film on the outer frame 12. The water collecting tank 52 can collect rainwater and pump the water in the water collecting tank 52 into the water storage tank 51 for storage through the second water pump 54, while the first water pump 53 can pump the water in the water storage tank 51 into the outlet pipe 55 and spray it out from the nozzle 552 at the upper end. The sprayed water will wash away the impurities and dust attached to the greenhouse film on the outer frame 12, and can also clean up the accumulated snow to avoid affecting the lighting of the sun shed, reducing the labor intensity of the personnel, and the rainwater will flow along the arc-shaped outer frame 12 into the water collecting tank 52, and the rainwater will be collected and reused.

[0026] Preferably, a wind speed and direction sensor 41 is provided at the side vent 22. The wind speed and direction sensor 41 and the electric film roller 23 are electrically connected to the PLC controller 42. The wind speed and direction sensor 41 is used to detect wind speed and wind direction. The PLC controller 42 controls the electric film roller 23 to open and close the side vent 22, thereby automatically opening and closing the windshield at the side vent 22 according to the wind speed and wind direction. In particular, when encountering strong winds, the windshield at the side vent 22 is automatically closed.

[0027] Furthermore, a temperature sensor 43 is provided in the sun shed frame, and the temperature sensor 43 and the electric roller shutter 142 are electrically connected to the PLC controller 42. The temperature sensor 43 is used to detect the temperature in the sun shed, and the PLC controller 42 controls the electric roller shutter 142 to retract and extend the thermal blanket 141 according to the temperature in the sun shed.

[0028] Furthermore, a plurality of pressure sensors 44 are provided between the outer frame 12 and the greenhouse film, and the output ends of the plurality of pressure sensors 44 are aligned with the greenhouse film. The pressure sensor 44, the first water pump 53 and the solenoid valve 551 are electrically connected to the PLC controller 42. The pressure sensor 44 is used to detect the pressure on the greenhouse film and send the detected pressure signal to the PLC controller 42. When the pressure sensor 44 detects that the pressure on the greenhouse film exceeds a certain value, and a certain amount of snow or dust is attached to the greenhouse film, the PLC controller 42 starts the first water pump 53 of the greenhouse film dust and snow removal device, and water is sprayed from the nozzle 552 to wash away the dust and snow attached to the greenhouse film on the outer frame 12.

[0029] Preferably, a photovoltaic panel 56 is arranged on the outside of the sun shed frame, and the photovoltaic panel 56 is electrically connected to a battery control group 57, which includes a battery. A heating tube 58 is arranged inside the water tank 51, and the battery control group 57 is electrically connected to the heating tube 58. Photovoltaic power generation is performed through the photovoltaic panel 56, and the electric energy is stored in the battery of the battery control group 57. The battery can provide electric energy for the heating tube 58, so that the heating tube 58 heats the water in the water tank 51, and the heated water can be sucked into the water outlet pipe 55 by the first water pump 53, and sprayed out from the nozzle 552 at the upper end. The sprayed water will melt the snow attached to the shed film on the outer frame 12, thereby achieving a better snow removal effect. Using light energy to heat water is more environmentally friendly. Photovoltaic power generation technology is a prior art and will not be repeated here. The battery control group 57 , the heating pipe 58 and the second water pump 54 are electrically connected to the PLC controller 42 , and the PLC controller 42 controls the working states of the battery control group 57 , the heating pipe 58 and the second water pump 54 .

[0030] The above-mentioned new double-layer sun shed provided by the utility model can wash away the dust and snow attached to the shed film on the outer frame 12 by arranging a shed film dust and snow removal device, so as to avoid affecting the lighting of the sun shed and reduce the labor intensity of personnel; in addition, a plurality of pressure sensors 44 are arranged between the outer frame 12 and the shed film, and the pressure sensors 44 are electrically connected to the PLC controller 42. When the pressure sensors 44 detect that the pressure on the shed film exceeds a certain value, the dust and snow attached to the shed film on the outer frame 12 can be automatically cleaned; in addition, through the ventilation device 2 arranged on the top of the sun shed frame and the side vents 22 arranged on both sides of the ventilation device 2, the side vents 22 are arranged vertically, so that the sun shed can be ventilated normally in light rain weather, and rainwater will not enter the sun shed in light rain weather; in addition, a wind speed and direction sensor 41 is arranged at the side vent 22, and the wind speed and direction sensor 41 is electrically connected to the PLC controller 42, so that the wind shielding film at the side vent 22 can be automatically closed in windy and rainy days.

[0031] Any details not mentioned in the above specific embodiments of the present invention belong to the known technologies in the art and can be implemented with reference to the known technologies.

[0032] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A novel double-layer sun shed, including a sun shed frame, characterized in that: The utility model also includes a ventilation device and a greenhouse film dust and snow removal device connected to the sun shed frame. The sun shed frame includes an outer frame and an inner frame, and the outer frame and the inner frame are both covered with greenhouse film; the ventilation device includes an arch frame arranged on the top of the outer frame, and the arch frame is covered with greenhouse film. The greenhouse film covering the two sides of the arch frame is respectively provided with side vents along the length direction of the sun shed frame, and a windshield film is fixedly installed at the side vents, and the windshield film is connected to an electric film roller. The side vents are arranged vertically, and wind speed and direction sensors are arranged at the side vents; the greenhouse film dust and snow removal device includes a water storage tank arranged on the side of the sun shed frame close to the ridge and a first water pump arranged inside the water storage tank, the lower end of the water outlet pipe passes through the water storage tank and is connected to the first water pump, the upper end of the water outlet pipe extends upward along the side of the sun shed frame close to the ridge and passes through the arch frame of the ventilation device, and is connected to multiple nozzles through multiple branch pipes, and multiple pressure sensors are arranged between the outer frame and the greenhouse film, and the wind speed and direction sensor, the electric film roller, the pressure sensor and the first water pump are electrically connected to the PLC controller.

2. The novel double-layer sun shed according to claim 1 is characterized in that: The outer frame and the inner frame are connected to the support rods through connecting pieces, and a retractable thermal insulation quilt is fixed on the top of the inner frame and below the outer frame. The retraction and extension of the thermal insulation quilt is controlled by installing an electric roller shutter machine.

3. The novel double-layer sun shed according to claim 2 is characterized in that: A temperature sensor is arranged in the sun shed frame, and the temperature sensor and the electric roller shutter machine are electrically connected with the PLC controller.

4. The novel double-layer sun shed according to claim 2 is characterized in that: The arch frame protrudes upward relative to the outer frame, the top of the arch frame is arranged in an arc shape, and the two sides of the arch frame are connected and fixed near the ridge of the outer frame through connecting pieces.

5. The novel double-layer sun shed according to claim 4 is characterized in that: The outer frame, inner frame, support rods and arch frame are made of hot-dip galvanized steel materials, and galvanized connectors and galvanized screws are used at the joints between the outer frame and the inner frame and between the outer frame and the arch frame.

6. The novel double-layer sun shed according to claim 1 is characterized in that: The greenhouse film dust and snow removal device also includes a water collecting tank arranged on the other side of the sun shed frame away from the roof ridge and a second water pump arranged at the bottom outside the water tank. The second water pump is connected to the inside of the water tank, and a return pipe is connected between the input end of the second water pump and the water collecting tank.

7. The novel double-layer sun shed according to claim 6 is characterized in that: The sun shed frame is provided with a photovoltaic panel on the outside, the photovoltaic panel is electrically connected to a battery control group, the battery control group includes a storage battery, a heating tube is provided inside the water tank, and the battery control group is electrically connected to the heating tube.

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