CN110036796B - Thermal insulation system in multi-span greenhouse side wall - Google Patents

Thermal insulation system in multi-span greenhouse side wall Download PDF

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Publication number
CN110036796B
CN110036796B CN201910374516.5A CN201910374516A CN110036796B CN 110036796 B CN110036796 B CN 110036796B CN 201910374516 A CN201910374516 A CN 201910374516A CN 110036796 B CN110036796 B CN 110036796B
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China
Prior art keywords
driving
heat preservation
side wall
curtain
greenhouse
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CN201910374516.5A
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Chinese (zh)
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CN110036796A (en
Inventor
宋明军
赵鹏
王晓巍
张旭林
张俊峰
蒯佳琳
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Vegetable Research Institute Gansu Academy Of Agricultural Sciences
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Vegetable Research Institute Gansu Academy Of Agricultural Sciences
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Priority to CN201910374516.5A priority Critical patent/CN110036796B/en
Publication of CN110036796A publication Critical patent/CN110036796A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14Greenhouses
    • A01G9/1407Greenhouses of flexible synthetic material
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/22Shades or blinds for greenhouses, or the like
    • A01G9/222Lamellar or like blinds
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/22Shades or blinds for greenhouses, or the like
    • A01G9/227Shades or blinds for greenhouses, or the like rolled up during non-use
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25Greenhouse technology, e.g. cooling systems therefor

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Greenhouses (AREA)

Abstract

The embodiment of the invention discloses a multi-span greenhouse side wall internal heat preservation system which comprises a frame body, a heat preservation part and a driving part, wherein the frame body comprises at least two side stand columns and an opening stand column arranged between the side stand columns, a hanging steel wire is arranged between the side stand columns and the opening stand column, the driving part comprises a driving shaft arranged on the side stand column and/or the opening stand column, a gear motor for driving the driving shaft to rotate, a reversing wheel arranged on the side stand column and a driving steel cable wound on the driving shaft and the reversing wheel, the heat preservation part comprises at least one heat preservation curtain hung on the hanging steel wire, one end of the heat preservation curtain is provided with a driving rod, and the driving rod is connected with the driving steel cable. The system can effectively improve the heat preservation capacity of the multi-span greenhouse, reduce heat loss and reduce the heating consumption of the multi-span greenhouse. The heat-insulating curtain is pulled open for lighting in daytime, so that the influence on the lighting capacity of the greenhouse in daytime is small, the environment regulation capacity of the multi-span greenhouse is improved, and the method is very beneficial to the improvement of the yield of greenhouse crops.

Description

Thermal insulation system in multi-span greenhouse side wall
Technical Field
The invention belongs to the technical field of agriculture, and particularly relates to an internal heat preservation system of a multi-span greenhouse side wall.
Background
The development level of facility agriculture is an important sign of the modern development level of national agriculture, and the multi-span greenhouse is high in operation space, high in land utilization rate and easy to realize large-area environment regulation, the yield per unit area is several times or more than ten times higher than that of the traditional sunlight greenhouse, the intensive and modern production mode is favored by producers, the development of China is quick in recent years, and the area of the newly-built multi-span greenhouse is rapidly increased in each place. However, the multi-span greenhouse also has the problems of limited heat preservation capability and faster heat dissipation, and particularly in the northern winter production, a large amount of energy sources are required to be consumed to maintain the growth temperature required by the night crops, so that the production cost is increased, the winter heating cost is high, and the heavy economic burden of the multi-span greenhouse producer is caused. Therefore, the heat preservation capability of the multi-span greenhouse is improved, the heating expenditure is reduced, and the method is an important means for improving the economic benefit of the multi-span greenhouse.
The heat preservation mode of the multi-span greenhouse mainly adopts a top inner sunshade heat preservation curtain for closed heat preservation at night, and in recent years, a layer of inner heat preservation quilt is additionally arranged under the inner sunshade heat preservation curtain of the multi-span greenhouse in China, and the side wall adopts double-layer hollow glass or a greenhouse film, so that the heat preservation capability of the multi-span greenhouse is improved. However, in the northern cold areas of China, the heat preservation capacity of the mode is limited, and under the condition of heat preservation in the top of the greenhouse, the heat dissipation of the double-layer hollow glass or the greenhouse film on four sides of the multi-span greenhouse is faster, so that the quantity of heating air and the heating water temperature are required to be increased to ensure the normal growth of crops in the greenhouse, and the heating cost is high. Because the wet curtain fan cooling system of the side wall of the multi-span greenhouse and the hanging vine material fixed on the upright post block, the internal heat preservation of the side wall of the multi-span greenhouse is difficult to realize mechanical integral pulling and releasing, and the manual pulling and releasing are more laborious and time-consuming, so that the heat preservation of the side wall of the multi-span greenhouse is always a technical difficulty.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a multi-span greenhouse side wall internal heat preservation system, which comprises a frame body, a heat preservation part and a driving part, wherein the heat preservation part and the driving part are arranged on the frame body,
the frame body comprises at least two side stand columns and an open stand column arranged between the side stand columns, a hanging steel wire is arranged between the side stand columns and the open stand column or between the two side stand columns,
the driving part comprises a driving shaft arranged on the side upright post and/or the open upright post, a gear motor for driving the driving shaft to rotate, a reversing wheel arranged on the side upright post, a first driving steel cable wound on the driving shaft and the reversing wheel,
the heat preservation part comprises at least one heat preservation curtain hung on the hanging steel wire, one end of the heat preservation curtain is provided with a driving rod, and the driving rod is connected with the driving steel cable.
Optionally, the control part is including setting up limit switch on the stand in the room, limit switch with the actuating lever corresponds the setting, the actuating lever can touch corresponding limit switch, limit switch pass through the host computer with gear motor communication connection, control part still includes with host computer communication connection's microcomputer longitude and latitude time controller and temperature illumination induction system.
Optionally, four corners of the multi-span greenhouse are respectively provided with the side stand columns, and the driving shaft is rotatably arranged on one of the side stand columns.
Optionally, the reversing wheel includes reversing wheel and lower reversing wheel, it is in to go up the reversing wheel setting the upper portion lateral wall of limit stand, lower reversing wheel sets up the lower part lateral wall of limit stand, first drive steel cable winds in proper order and establishes in each on last reversing wheel, drive portion still includes the second drive steel cable, the second drive steel cable winds in proper order and establishes in each on the lower reversing wheel, first drive steel cable with second drive steel cable parallel arrangement, the bottom detachable of heat preservation curtain is connected on the second drive steel cable, be provided with reel and reel down in the drive shaft, first drive steel cable winds and establishes the reel, the second drive steel cable winds and establishes down the reel.
Optionally, the top and the bottom of heat preservation curtain all are provided with the button hole, pass the button hole is provided with the spring catch, the top of heat preservation curtain is passed through the detachable string of spring catch is established on the hanging wire, the bottom of heat preservation curtain is passed through the detachable connection of spring catch is in on the second drive steel cable.
Optionally, the top and the bottom of actuating lever are provided with the drive card respectively, the both ends of actuating lever are passed through respectively the drive card is connected first drive steel cable with on the second drive steel cable, be provided with the clamp on the lateral wall of actuating lever, the actuating lever passes through the clamp with the heat preservation curtain can dismantle and be connected.
Optionally, an upper extension piece is correspondingly arranged on the upper side wall of each side stand column, a lower extension piece is correspondingly arranged on the lower side wall of each side stand column, the upper reversing wheel is arranged on the side stand column through the upper extension piece, the lower reversing wheel is arranged on the side stand column through the lower extension piece, and the upper extension piece and the lower extension piece are perpendicular to the side wall of the Yu Liandong greenhouse and extend indoors.
Optionally, the upper portion lateral wall of the open-room upright is provided with the upper avoidance piece, and the lower part lateral wall is provided with down the avoidance piece, the rotatable hanging wheel that is connected with in bottom of upper avoidance piece, the rotatable hanging wheel that is connected with in bottom of lower avoidance piece, first drive steel cable is located on the upper hanging wheel, the second drive steel cable is located on the lower hanging wheel, upper avoidance piece with the side wall setting of the perpendicular Yu Liandong greenhouse of lower avoidance piece extends indoor.
Optionally, one end of the heat insulation curtain is detachably connected to the side stand column and/or the open stand column, and the other end of the heat insulation curtain is detachably connected to the driving rod.
Optionally, the heat-insulating curtain is made of a plastic film, a sunshade heat-insulating curtain or a waterproof heat-insulating quilt.
The beneficial effects are that:
the multi-span greenhouse side wall internal heat preservation system provided by the embodiment of the invention solves the problem of poor heat preservation capability of multi-span greenhouse side wall covering materials (glass or greenhouse film), and also solves the problem that internal heat preservation mechanical winding and unwinding are difficult to realize on the side wall due to the blocking of the side wall wet curtain fans and the vine pulling steel wires. The invention adopts an integral driving and heat-insulating curtain block drawing type drawing and releasing mode to solve the problem of heat insulation of the side wall of the multi-span greenhouse. The heat preservation curtain is closed at night, so that the heat preservation capacity of the multi-span greenhouse can be effectively improved, the heat loss is reduced, and the heating consumption of the multi-span greenhouse is reduced. The heat-insulating curtain is pulled open for lighting in daytime, so that the influence on the lighting capacity of the greenhouse in daytime is small, the environment regulation capacity of the multi-span greenhouse is improved, and the method is very beneficial to the improvement of the yield of greenhouse crops.
Drawings
Fig. 1 is a schematic structural view of a first side wall in a multi-span greenhouse according to an embodiment of the present invention;
FIG. 2 is a schematic view of a second side wall opposite the first side wall of FIG. 1;
FIG. 3 is a schematic view of the drive shaft and drive motor of an embodiment of the present invention;
FIG. 4 is an enlarged partial upper view of FIG. 1;
FIG. 5 is a partial enlarged view of the lower portion of FIG. 1;
fig. 6 is a schematic view of the construction of the open-cell upright, upper extension and lower extension.
Wherein:
1. a thermal insulation curtain; 2. hanging a steel wire; 3. a first drive cable; 4. a second drive cable; 5. a speed reducing motor; 6. a drive shaft; 7. side posts; 8. a driving rod; 9. a hanging wire wheel is arranged; 10. a lower hanging wire wheel; 11. a bay column; 12. an upper reversing wheel; 13. a lower reversing wheel; 14. a spring buckle; 15. a limit switch; 16. a clamping groove; 17. a wet curtain; 18. a blower; 19. a bearing seat; 20. an upper bobbin; 21. a lower bobbin; 22. a clamp; 23. a drive card; 24. an eye-hole; 25. a tightener; 26. an upper extension; 27. a lower extension; 28. hanging change wheels; 29. an upper bypass member; 30. a lower bypass member.
Detailed Description
The technical scheme of the invention is described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-6, the multi-span greenhouse side wall internal heat insulation system comprises a frame body, a heat insulation part and a driving part, wherein the heat insulation part and the driving part are arranged on the frame body, the frame body comprises at least two side stand columns 7 and an open stand column 11 arranged between the side stand columns 7, hanging steel wires 2 are arranged between the side stand columns 7 and the open stand column 11 or between the two side stand columns 7, and the driving part comprises a driving shaft 6 arranged on the side stand columns 7 and/or the open stand column 11, a speed reducing motor 5 used for driving the driving shaft 6 to rotate, a reversing wheel arranged on the side stand columns 7 and a first driving steel cable 3 wound on the driving shaft 6 and the reversing wheel. The heat preservation portion comprises at least one heat preservation curtain 1 hung on the hanging steel wires 2, a driving rod 8 is arranged at one end of the heat preservation curtain 1, and the driving rod 8 is connected with the driving steel cable. The driving shaft 6 rotates to drive the first driving steel cable 3 to move on the reversing wheel, so that the heat insulation curtain 1 is driven to be unfolded or closed, and the temperature regulation and control of the multi-span greenhouse are realized.
Further, the frame body can be a skeleton structure of the multi-span greenhouse, and can also be a frame body which is independently arranged in the multi-span greenhouse.
Four corners of the multi-span greenhouse are respectively provided with the side upright posts 7, and the driving shaft 6 is rotatably arranged on one of the side upright posts 7.
Further, the four-span greenhouse comprises 4 side upright posts 7,4 side upright posts 7 are respectively and vertically arranged at four corners of the multi-span greenhouse, and the 4 side upright posts 7 are sequentially connected to form a rectangle. As shown in fig. 1, the drive shaft 6 is arranged on a left-hand side column 7 in fig. 1.
Further, in this embodiment, as shown in fig. 1 and 2, the thermal insulation curtain 1 moves leftwards when the multi-span greenhouse needs to keep warm at night, and the thermal insulation curtain 1 moves rightwards when the multi-span greenhouse needs to keep warm in daytime. The movement direction of the thermal insulation curtains 1 is not limited in this embodiment during lighting and the movement directions of the thermal insulation curtains 1 are synchronous.
In particular, the drive shaft 6 is rotatably connected to the side post 7 via a bearing block 19.
Further, the hanging steel wire 2 is connected to the side stand 7 through a hanging wheel 28.
Specifically, a tightener 25 is disposed between the hanging wheel 28 and the side stand 7, and is used for adjusting the tightness degree of the hanging steel wire 2.
The intelligent control device is characterized by further comprising a control part, wherein the control part comprises a limit switch 15 arranged on the open upright post 11, the limit switch 15 is correspondingly arranged with the driving rod 8, the driving rod 8 can touch the corresponding limit switch 15, the limit switch 15 is in communication connection with the gear motor 5 through a host, and the control part further comprises a microcomputer longitude and latitude time controller and a temperature illumination induction system which are in communication connection with the host. The control part is used for controlling the heat preservation system, so that the heat preservation system has an automatic function.
Further, as shown in fig. 1 and 2, the limit switch 15 is disposed on a right side wall and a left side wall of the top of the open upright 11, and the heat insulation curtain 1 can touch the limit switch 15 when moving leftwards or rightwards to a limit position, and the limit switch 15 controls the gear motor 5 to stop running through the host.
Furthermore, the timing operation of the gear motor 5 can be realized through a microcomputer longitude and latitude time controller, the intelligent microcomputer timing control controlled according to the latitude is a mathematical model established according to the law of sunrise and sunset under different latitudes and the actual distribution condition of solar radiation, the sunrise time of different latitudes is automatically corrected by software, then the operation time of the gear motor 5 is controlled, and further the timing heat preservation and timing lighting of a heat preservation system to the multi-span greenhouse are realized.
Further, the temperature and illumination sensing system comprises a temperature-sensitive control unit and a photosensitive control unit, the temperature-sensitive control unit senses indoor temperature, the photosensitive control unit senses the intensity of light of the environment, a corresponding threshold value is set, the host controls the speed reduction motor 5 to operate when the temperature is lower than the threshold value, the closed heat preservation system realizes automatic heat preservation of the multi-span greenhouse, the host controls the speed reduction motor 5 to operate when the temperature is higher than the threshold value, and the heat preservation system is opened to realize automatic lighting of the multi-span greenhouse.
The reversing wheels comprise upper reversing wheels 12 and lower reversing wheels 13, the upper reversing wheels 12 are arranged on the upper side walls of the side stand columns 7, the lower reversing wheels 13 are arranged on the lower side walls of the side stand columns 7, the first driving steel cables 3 are sequentially wound on the upper reversing wheels 12, the driving part further comprises second driving steel cables 4, the second driving steel cables are sequentially wound on the lower reversing wheels 13, the first driving steel cables 3 are parallel to the second driving steel cables 4, the bottom of the heat insulation curtain 1 is detachably connected to the second driving steel cables 4, an upper winding reel 20 and a lower winding reel 21 are arranged on the driving shaft 6, the first driving steel cables 3 are wound on the upper winding reel 20, and the second driving steel cables 4 are wound on the lower winding reel 21.
Further, each upper reversing wheel 12 is located at the same height, each lower reversing wheel 13 is located at the same height, each upper reversing wheel 12 is sequentially bypassed by the first driving steel cable 3 to form a closed rectangular structure, each lower reversing wheel 13 is sequentially bypassed by the second driving steel cable 4 to form a closed rectangular structure, the driving shaft 6 is connected with the first driving steel cable 3 through the upper winding reel 20 and is connected with the second driving steel cable 4 through the lower winding reel 21, and when the driving shaft 6 rotates, the upper winding reel 20 drives the first driving steel cable 3 to be connected with the upper reversing wheels 12 for movement, and the second driving steel cable 4 is driven by the lower winding reel 21 to be connected with the lower reversing wheels 13 for movement.
Specifically, in this embodiment, the hanging steel wire 2 is disposed between two of the side posts 7.
Specifically, in this embodiment, the driving shaft 6 is disposed on the side stand 7.
The top and the bottom of the heat preservation curtain 1 are both provided with buttonholes 24, a spring fastener 14 is arranged through the buttonholes 24, the top of the heat preservation curtain 1 is detachably hung on the hanging steel wire 2 through the spring fastener 14, and the bottom of the heat preservation curtain 1 is detachably connected to the second driving steel cable 4 through the spring fastener 14.
The top and the bottom of the driving rod 8 are respectively provided with a driving card 23, two ends of the driving rod 8 are respectively connected to the first driving steel cable 3 and the second driving steel cable 4 through the driving cards 23, and the driving rod 8 is detachably connected with the heat insulation curtain 1 through the clamping hoop 22.
One end of the heat preservation curtain 1 is fixedly connected to the side stand column 7 and/or the open stand column 11, and the other end of the heat preservation curtain is detachably connected to the driving rod 8.
Further, the thermal insulation curtain 1 includes a moving edge and a fixed edge, as shown in fig. 1 and 2, the moving edge is connected with the driving rod 8, the fixed edge is fixed on the open upright 11 or the right side upright 7, and a clamping groove 16 is provided on the open upright 11 and the right side upright 7. The upper side wall of each side column 7 is correspondingly provided with an upper extension piece 26, the lower side wall is correspondingly provided with a lower extension piece 27, the upper reversing wheel 12 is arranged on the side column 7 through the upper extension piece 26, the lower reversing wheel 13 is arranged on the side column 7 through the lower extension piece 27, and the upper extension piece 26 and the lower extension piece 27 are perpendicular to the side walls of the multi-span greenhouse and extend indoors.
Further, when the fan 18 system of the wet curtain 17 is installed in the multi-span greenhouse, the upper extension member 26 and the lower extension member 27 are provided in order to prevent the wet curtain 17 and the fan 18 of the multi-span greenhouse from obstructing the driving of the internal insulation system, and the multi-span greenhouse without the fan 18 of the wet curtain 17 may not be provided with the upper extension member 26 and the lower extension member 27.
Further, the upper extension 26 is located at the same height, and the lower extension 27 is located at the same height.
Further, as shown in fig. 1-4, the upper extending members 26 on the two side posts 7 adjacent to the first side wall are disposed opposite to each other and extend toward each other, and the lower extending members 27 are disposed opposite to each other and extend toward each other. The upper extending members 26 on the two side uprights 7 near the second side wall are oppositely arranged and extend towards each other, and the lower extending members 27 are oppositely arranged and extend towards each other.
Further, the reversing wheel and the bearing seat 19 are fixed on the side upright post 7 of the multi-span greenhouse through an upper extension piece 26 and a lower extension piece 27, and form a certain distance with the side upright post 7, so that a blocking of the fan 18 of the wet curtain 17 on the opening and closing of the heat preservation curtain 1 is avoided.
The upper side wall of the open upright 11 is provided with an upper avoiding member 29, the lower side wall is provided with a lower avoiding member 30, the bottom of the upper avoiding member 29 is rotatably connected with an upper hanging wheel, the bottom of the lower avoiding member 30 is rotatably connected with a lower hanging wheel, the first driving steel cable 3 is positioned on the upper hanging wheel, the second driving steel cable 4 is positioned on the lower hanging wheel, and the upper avoiding member 29 and the lower avoiding member 30 are perpendicular to the side wall of the multi-span greenhouse and extend indoors.
Further, the lines of extension of the upper bypass member 29 and the lower bypass member 30 are perpendicular to the first side wall and the second side wall and extend inwardly.
Further, the upper bypass member 29 and the lower bypass member 30 maintain the thermal curtain 1 at a distance from the first wall and the second wall, thereby avoiding an obstacle.
Further, the upper and lower hanging wheels are used for pulling the first and second driving steel cables 3 and 4 to prevent downward bending.
The heat-insulating curtain 1 is made of a plastic film, a sunshade heat-insulating curtain or a waterproof heat-insulating quilt.
When the thermal insulation curtain is used, a power supply is started during the evening when thermal insulation is needed, the gear motor 5 drives the driving shaft 6 to rotate, the upper winding reel 20 and the lower winding reel 21 on the driving shaft 6 rotate to start and drive the first driving steel cable 3 and the second driving steel cable 4, the driving rod 8 is pulled to move, when the limit switch 15 is encountered, the gear motor 5 stops moving, and the thermal insulation curtain 1 is closed for thermal insulation. The gear motor 5 is started in the opposite direction in daytime, the upper winding reel 20 and the lower winding reel 21 on the driving shaft 6 are rotated to start and drive the first driving steel cable 3 and the second driving steel cable 4, the driving rod 8 is pulled to move, the stop motion is met, the heat-insulating curtain 1 is pulled to open lighting, the heat-insulating curtain 1 is recovered to the inner side of the opening upright post 11, and shading is reduced as much as possible, so that heat insulation at night and lighting in daytime of the multi-span greenhouse are realized.
Example 2
Unlike example 1 in which the upper extension member 26, the lower extension member 27, the upper bypass member 29 and the lower bypass member 30 are not provided when the fan 18 system of the wet curtain 17 is not installed in the multi-span greenhouse, the upper and lower return wheels 12 and 13 are directly rotatably coupled to the side uprights 7, and the upper and lower hanging wheels are rotatably coupled to the open-cell uprights 11.
The multi-span greenhouse side wall internal heat preservation system provided by the embodiment of the invention solves the problem of poor heat preservation capability of multi-span greenhouse side wall covering materials (glass or greenhouse film), and also solves the problem that internal heat preservation mechanical winding and unwinding are difficult to realize on the side wall due to the blocking of the side wall wet curtain 17 fan 18 and the vine pulling steel wire. The invention adopts an integral driving and heat preservation curtain 1 block drawing type drawing and releasing mode to solve the problem of heat preservation of the side wall of the multi-span greenhouse. The heat preservation curtain 1 is closed at night, so that the heat preservation capacity of the multi-span greenhouse can be effectively improved, the heat loss is reduced, and the heating consumption of the multi-span greenhouse is reduced. The heat-insulating curtain 1 is pulled open for lighting in daytime, so that the influence on the lighting capacity of the greenhouse in daytime is small, the environment regulation capacity of the multi-span greenhouse is improved, and the improvement of the yield of greenhouse crops is very beneficial.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A multi-span greenhouse side wall internal heat preservation system is characterized by comprising a frame body, a heat preservation part and a driving part which are arranged on the frame body,
the frame body comprises at least two side stand columns (7) and an open stand column (11) arranged between the side stand columns (7), a hanging steel wire (2) is arranged between the side stand columns (7) and the open stand column (11) or between the two side stand columns (7),
the driving part comprises a driving shaft (6) arranged on the side stand column (7) and/or the opening stand column (11), a gear motor (5) for driving the driving shaft (6) to rotate, a reversing wheel arranged on the side stand column (7), a first driving steel cable (3) wound on the driving shaft (6) and the reversing wheel,
the heat preservation part comprises at least one heat preservation curtain (1) hung on the hanging steel wire (2), one end of the heat preservation curtain (1) is provided with a driving rod (8), and the driving rod (8) is connected with the driving steel cable;
the reversing wheel comprises an upper reversing wheel (12) and a lower reversing wheel (13), the upper reversing wheel (12) is arranged on the upper side wall of the side upright post (7), the lower reversing wheel (13) is arranged on the lower side wall of the side upright post (7), the first driving steel cables (3) are sequentially wound on the upper reversing wheels (12), the driving part further comprises second driving steel cables (4), the second driving steel is sequentially wound on the lower reversing wheels (13), the first driving steel cables (3) are arranged in parallel with the second driving steel cables (4), the bottom of the heat insulation curtain (1) is detachably connected to the second driving steel cables (4), the driving shaft (6) is provided with an upper winding drum (20) and a lower winding drum (21), the first driving steel cables (3) are wound on the upper winding drum (20), and the second driving steel cables (4) are wound on the lower winding drum (21);
the top and the bottom of the heat-insulating curtain (1) are respectively provided with a button eye hole (24), a spring button (14) is arranged through the button eye holes (24), the top of the heat-insulating curtain (1) is detachably hung on the hanging steel wire (2) through the spring button (14), and the bottom of the heat-insulating curtain (1) is detachably connected to the second driving steel cable (4) through the spring button (14);
the top and the bottom of actuating lever (8) are provided with drive card (23) respectively, the both ends of actuating lever (8) are passed through respectively drive card (23) are connected first drive steel cable (3) with on second drive steel cable (4), actuating lever (8) pass through clamp (22) with heat preservation curtain (1) can dismantle and be connected.
2. The multi-span greenhouse side wall internal heat preservation system according to claim 1, further comprising a control part, wherein the control part comprises a limit switch (15) arranged on the open upright post (11), the limit switch (15) is arranged corresponding to the driving rod (8), the driving rod (8) can touch the corresponding limit switch (15), the limit switch (15) is in communication connection with the speed reduction motor (5) through a host, and the control part further comprises a microcomputer longitude and latitude time controller and a temperature illumination induction system which are in communication connection with the host.
3. The multi-span greenhouse side wall internal heat preservation system according to claim 1, wherein four corners of the multi-span greenhouse are respectively provided with the side stand columns (7), and the driving shaft (6) is rotatably arranged on one of the side stand columns (7).
4. The multi-span greenhouse side wall internal heat preservation system according to claim 1, wherein an upper extension piece (26) is correspondingly arranged on the upper side wall of each side upright (7), a lower extension piece (27) is correspondingly arranged on the lower side wall of each side upright (7), the upper reversing wheel (12) is arranged on the side upright (7) through the upper extension piece (26), the lower reversing wheel (13) is arranged on the side upright (7) through the lower extension piece (27), and the upper extension piece (26) and the lower extension piece (27) are perpendicular to the side wall of the Yu Liandong greenhouse and extend indoors.
5. The multi-span greenhouse side wall internal heat preservation system according to claim 1, wherein an upper avoidance member (29) is arranged on the upper side wall of the open-span upright post (11), a lower avoidance member (30) is arranged on the lower side wall, an upper hanging wheel is rotatably connected to the bottom of the upper avoidance member (29), a lower hanging wheel is rotatably connected to the bottom of the lower avoidance member (30), a first driving steel cable (3) is arranged on the upper hanging wheel, a second driving steel cable (4) is arranged on the lower hanging wheel, and the upper avoidance member (29) and the lower avoidance member (30) are arranged on the side wall of the vertical Yu Liandong greenhouse and extend indoors.
6. The multi-span greenhouse side wall internal heat preservation system according to claim 1, wherein one end of the heat preservation curtain (1) is detachably connected to the side stand column (7) and/or the open stand column (11), and the other end of the heat preservation curtain is detachably connected to the driving rod (8).
7. The multi-span greenhouse side wall internal heat preservation system according to claim 1, wherein the heat preservation curtain (1) is made of plastic film, sunshade heat preservation curtain or waterproof heat preservation.
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CN111108984B (en) * 2020-02-14 2021-11-30 中农金旺(北京)农业工程技术有限公司 Side heat-insulating system applied to glass greenhouse
CN112119811A (en) * 2020-09-22 2020-12-25 潍坊科技学院 External wind pressure resistant heat insulation structure of multi-span greenhouse

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