CN112470786A

CN112470786A - Double-layer heat-preservation sunlight greenhouse

Info

Publication number: CN112470786A
Application number: CN202011365517.2A
Authority: CN
Inventors: 张建金; 赵树春; 朱正明; 孙述俊; 张斌祥; 李永堂; 齐小梅; 王广文
Original assignee: Jingyuan Agricultural Technology Popularization Center
Current assignee: Jingyuan Agricultural Technology Popularization Center
Priority date: 2020-11-28
Filing date: 2020-11-28
Publication date: 2021-03-12
Anticipated expiration: 2040-11-28
Also published as: CN112470786B

Abstract

The invention discloses a double-layer heat-preservation sunlight greenhouse, which comprises a heat-preservation and heat-preservation wall body and a greenhouse framework, wherein the heat-preservation and heat-preservation wall body is in an east-west direction in structure, the east-west length is 90m, the north-south span is 8.5 m, a west-side wall and an east-side wall are heat-preservation and heat-preservation wall bodies, an outer layer shed and an inner layer shed are arranged between the west-side wall and the east-side wall, the outer layer shed comprises an outer arch frame, the outer side of the outer arch frame is covered with an outer covering film, the inner side of the outer arch frame is provided with a plurality of outer arch pull rods, the inner layer shed comprises an inner arch frame, the outer side of the inner arch frame is covered with an inner covering film, the inner side of the inner arch frame is provided with a plurality of inner arch pull rods, the inner side of the inner arch frame is also provided with a plurality of spraying systems, the spraying systems are connected with, one end of the scroll is movably connected to the left wall, the other end of the scroll is connected with a roller shutter motor fixed on the right wall, and the inner layer heat preservation is lifted and lowered by the roller shutter motor and the pull rope in a rotating mode.

Description

Double-layer heat-preservation sunlight greenhouse

Technical Field

The invention belongs to the field of agricultural equipment, and particularly relates to a double-layer heat-preservation sunlight greenhouse.

Background

The sunlight greenhouse is a greenhouse structure independently developed in China, has the characteristics of low construction cost, good energy-saving effect and the like, and as for 2013, the agricultural area of facilities in China reaches 350 ten thousand hectares, wherein the sunlight greenhouse reaches 88 ten thousand hectares, and occupies the total area of the facilities

25%, under the background that petrochemical energy prices are rising and environmental protection is becoming stricter day by day, the sunlight greenhouse has become an important means for breaking through resource bottleneck restriction and maintaining long-term effective supply of agricultural products in winter in the facility horticulture industry of China, and along with the vigorous popularization and the popularization of vegetable basket projects in various regions, the construction of the sunlight greenhouse can reach unprecedented scale.

However, the main problem of the solar greenhouse in China at present is that the heat storage and preservation performance in winter needs to be improved. The covering material of the sunlight greenhouse is mainly a single-layer agricultural film, and the heat preservation quilt or the straw curtain becomes a main means for heat preservation at night. The heat preservation quilt or the straw curtain is directly covered on the shed film through the rolling and paving mechanism, and the condition of untight lap joint is easy to occur because the lap joint of the heat preservation quilt is mostly tied and buckled by a tether; in addition, most of the heat preservation quilt is made of felt or light foaming materials, the heat preservation quilt covering the greenhouse film is easily blown up by strong wind at night, more indoor heat is lost, and the heat preservation effect of the heat preservation quilt is reduced. Secondly, the existing sunlight greenhouse is mainly used for winter production, because of no facility for shading and cooling, the problem that crops which cannot resist high temperature are difficult to cultivate over summer becomes a trouble for farmers, only the greenhouse can be shut down in the high-temperature season of 7 to 8 months, and the problem that the sunlight greenhouse is effectively utilized to carry out annual or long-season production becomes a problem to be solved urgently. Thirdly, the existing ventilation opening at the top of the sunlight greenhouse is mostly used for manually raking the seam, and cannot be used in windy and rainy days; the heat preservation quilt or the straw curtain covers the winter, so that the use is inconvenient when moisture is exhausted and air is exchanged, and improvement is needed.

Disclosure of Invention

Aiming at the technical problems, the invention provides the zinc element-doped porous bioactive glass ceramic and the preparation method thereof.

The technical scheme adopted by the invention is as follows:

a double-layer heat-preservation sunlight greenhouse,

the heat-storage heat-preservation wall body is structurally in an east-west trend, the east-west length is 75-85, the north-south span is 8.5-9.5 m, the west-side wall and the east-side wall are heat-storage heat-preservation wall bodies, an outer shed and an inner shed are arranged between the west-side wall and the east-side wall, the outer shed comprises an outer arch frame formed by a plurality of outer arch beams which are distributed side by side, an outer covering film covers the outer side of the outer arch frame, a plurality of outer arch pull rods are arranged on the inner side of the outer arch frame, the inner shed comprises an inner arch frame formed by a plurality of inner arch beams which are distributed side by side, an inner infusion tube covers the outer side of the inner arch frame, a plurality of inner arch pull rods are arranged on the inner side of the inner arch frame, a plurality of spraying systems are further arranged on the inner side of the inner arch frame and connected with the spraying systems, and an inner heat-preservation quilt is arranged at a high, the inner layer heat preservation quilt is wound on the reel, one end of the reel is movably connected to the left wall body, the other end of the reel is connected with the roller shutter motor fixed on the right wall body, and the inner layer heat preservation quilt is lifted by the roller shutter motor and the pull rope in a rotating mode.

Preferably, the bottom of the rear wall surface of the outer arch is connected with an embedded part or a ground ring beam embedded in the ground by 40-50 cm.

Preferably, the upper end of the inner arch is fixed on the rear wall surface, and the lower end of the inner arch is connected with an embedded part or a ground ring beam embedded 40-50 cm below the ground and is flush with the bottom of the rear wall surface of the outer arch.

Preferably, a ventilation opening of 60-80 cm is reserved at the high point of the front roof of the outer shed, and a tuyere shed film covers the ventilation opening.

Preferably, the spraying system comprises a central shaft, a ball winch and a rotary table, wherein the central shaft is a hollow cylindrical rod, the upper end of the central shaft is movably connected with the ball winch, a sleeve cup is arranged at the lower end of the central shaft, the upper surface of the sleeve cup is in contact with the rotary table, the rotary table is of a circular ring structure, the inner ring surface of the rotary table is meshed with teeth on the outer wall of a rotary shaft, the rotary shaft is movably connected with the central shaft through a bearing, a motor is arranged on the bottom of the inner side of the sleeve cup, an output shaft key of the motor is connected with a driving wheel, and the driving wheel is meshed with a driven wheel arranged;

the carousel upper surface is provided with an annular watering section of thick bamboo, be provided with a plurality of watering holes on an annular watering section of thick bamboo's the lateral wall, the top of an annular watering section of thick bamboo sets up annular backup pad and annular apron, the interior anchor ring and the center pin fixed connection of annular backup pad and annular apron, be provided with the stock solution storehouse between annular backup pad and the annular apron, the bottom in stock solution storehouse is provided with the liquid outlet, the upper surface of an annular watering section of thick bamboo is provided with the inlet that link up with the stock solution storehouse, the inside notes liquid pipe that is provided with of center pin, annotate the liquid pipe and include two mouths of pipe, one of them mouth of pipe runs through the center pin lateral wall and extends to the stock solution storehouse in, another.

Preferably, the liquid storage bin is an annular cylinder structure formed by an inner ring, an outer ring, an annular supporting plate and an annular cover plate in a sealing connection mode, the liquid outlet is formed in the annular supporting plate, a first annular sliding groove is formed in the lower surface of the annular supporting plate, first mounting grooves which are equidistant are formed in the upper surface of the annular irrigation cylinder, a first ball is mounted in each first mounting groove, and the exposed portion of each first ball is located in the first annular sliding groove.

Preferably, the liquid inlet is along the annular mouth that the annular watering section of thick bamboo upper ring face ring-wise distributed, the liquid outlet is provided with a plurality ofly and along the ring of annular backup pad equidistant distribution.

Preferably, the upper surface of the retainer cup is provided with second mounting grooves at equal intervals, second balls are arranged in the second mounting grooves, a second annular sliding groove is formed in the lower surface of the rotary table, and the exposed part of the second balls is located in the second annular sliding groove.

Preferably, the bearings are provided with two ends which are respectively located at the rotating shaft, wherein cushion blocks are respectively arranged above the bearings located at the upper end of the rotating shaft and below the bearings located at the lower end of the rotating shaft, and the cushion blocks are fixedly connected with the central shaft.

Preferably, the annular cover plate, the outer ring, the annular supporting plate, the annular pouring cylinder, the rotary disc and the outer side wall of the sleeve cup are flush.

The invention has the beneficial effects that: compared with the traditional single-layer sunlight greenhouse with the same structure, the double-layer heat-preservation sunlight greenhouse has remarkable heat-preservation effect at night in cold seasons. The double-layer greenhouse film and the stable air layer between the double-layer greenhouse film and the double-layer greenhouse film improve the sealing performance of the greenhouse, reduce the heat transfer coefficient, reduce the heat conduction capability and reduce the indoor heat loss. The double-layer film covers the sunlight greenhouse, the temperature at night is higher than that of the traditional sunlight greenhouse, and the structure is more stable.

Compared with the traditional single-layer sunlight greenhouse with the same structure, the double-layer heat-preservation sunlight greenhouse can be uncovered or covered with the inner-layer heat-preservation quilt after a delay. The stable air layer between the double-layer heat-insulation greenhouses can play a role in buffering the cooling, the inner layer heat-insulation quilt can be opened for 0.5-1.0 hour after being delayed compared with the traditional single-layer sunlight greenhouse with the same structure, and the inner layer heat-insulation quilt can be covered for 0.5-1.0 hour after being delayed, so that the heat storage capacity of the greenhouse is enhanced, the heat energy loss in the greenhouse is reduced, the photosynthesis time of indoor crops is prolonged, and the growth of the crops is promoted. In the daytime with sufficient illumination, the inner layer greenhouse film is rolled up and is close to the outer layer greenhouse film for lighting, and the energy of sunlight is obtained to the maximum extent for heat storage.

The inner side of the inner arch frame of the double-layer heat-preservation sunlight greenhouse is provided with a plurality of spraying systems, the spraying systems can be connected with the reservoir or the pesticide tank through the liquid conveying pipe and comprise a central shaft, a ball winch and a turntable, the turntable is connected with the central shaft through a rotating shaft, a driven wheel is arranged on the rotating shaft, the driven wheel drives a driving wheel which is in key connection with the driven wheel through a motor to provide power, an annular irrigation cylinder on the turntable is driven to rotate along with the turntable, water or pesticide in the annular irrigation cylinder is sprayed, the degree of automation is high, manpower and material resources are greatly saved, and the irrigation or pesticide application efficiency and effect are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the frame structure of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a side sectional view of an inner insulation quilt;

FIG. 4 is a schematic view of a sprinkler system;

FIG. 5 is a top view of the bowl;

FIG. 6 is a bottom view of the turntable;

FIG. 7 is a top view of the annular pouring cylinder;

FIG. 8 is a bottom view of the annular support plate.

1-west wall; 2-east sidewall; 3-an outer arched girder; 4-inner arched girder; 5-outer arch pull rod; 6- -the reel; 7-inner arch pull rod; 8-ground; 9-a spraying system; 901-ball capstan; 902-a central axis; 903-sleeve cup; 904-shaft; 905-a driving wheel; 906-driving wheel; 907-motor; 908-a turntable; 909-annular watering cylinder; 910-a liquid inlet; 911-annular support plate; 912-annular cover plate; 913-a liquid storage bin; 914-outer loop; 915-inner ring; 916-a liquid outlet; 917-liquid injection pipe; 918-pouring a hole; 919-teeth; 920-a bearing; 921-cushion block; 922-a first ball; 923-a second ball bearing; 924-a first mounting groove; 925-first annular chute; 926-a second mounting groove; 927-second annular chute; 10-a transfusion tube; 11-inner layer heat preservation quilt; 12-aluminizing; 13-a movable door.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention specifically provides a double-layer heat-preservation sunlight greenhouse, which comprises two parts, namely a heat-preservation wall body and a greenhouse framework, as shown in figures 1-2, the heat-preservation wall body is in an east-west direction in structure, the east-west length is 80m, the north-south span is 9 m, a west-side wall 1 and an east-side wall 2 are heat-preservation wall bodies, an outer layer shed and an inner layer shed are arranged between the west-side wall 1 and the east-side wall 2, a movable door 13 is arranged on the east-side wall 2, the outer layer shed comprises an outer arch truss formed by a plurality of outer arch beams 3 which are distributed side by side, an outer covering film covers the outer side of the outer arch truss, a plurality of outer arch pull rods 5 are arranged on the inner side of the outer arch truss 3, an inner layer shed comprises an inner arch truss formed by a plurality of inner arch beams 4 which are side by side, an inner covering film covers the outer side of the inner arch truss, a plurality of inner arch pull rods 7 are arranged, sprinkling system 9 is connected with transfer line 10, the high point department between outer bow member and the interior bow member is provided with inlayer heat preservation quilt 11, inlayer heat preservation quilt 11 is convoluteed to the spool on, the one end swing joint of spool is on left wall body, and its other end is connected with the book curtain motor that is fixed in on the right wall body, inlayer heat preservation quilt is by rolling up curtain motor and stay cord rotation take-off and land.

In order to improve the stability of the sunlight greenhouse frame, in the embodiment, the bottom of the rear wall surface of the outer arch is connected with an embedded part or a ground ring beam which is embedded in the ground 8-50 cm. The upper end of the inner arch is fixed on the rear wall surface, the joint of the inner arch is reinforced, and the lower end of the inner arch is connected with an embedded part or a ground ring beam which is embedded 40-50 cm below the ground 8 and is flush with the bottom of the rear wall surface of the outer arch.

In this embodiment, the outer arched girder and the inner arched girder are arranged in parallel, and the vertical distance between the outer arched girder and the inner arched girder is 30 cm. The distance between two adjacent outer arched beams is 90cm, 5-6 outer arched pull rods on the inclined plane at the inner sides of the outer arched beams are arranged, and the outer arched pull rods on the rear side face are arranged more densely so as to improve the stability of the rear side face of the outer arch center. The distance between two adjacent inner arched girders is 1.8m, 4 inner arched pull rods are arranged on the inner side surfaces of the inner arched girders, and the outer arched pull rods and the inner arched pull rods are in an inscribed connection mode. The outer arched girder and the inner arched girder both adopt an elliptical hot-dip galvanized all-steel framework structure with the thickness of 70mm multiplied by 30 mm.

As shown in FIG. 3, in this embodiment, the thickness of the inner layer insulation quilt 11 is 0.5-1 cm. The cotton quilt in the inner layer heat preservation quilt 11 is required to be made of non-hygroscopic and waterproof materials. The aluminizer 12 arranged on the inner surface needs to be punched, the hole density is 30cm multiplied by 30 cm-40 cm multiplied by 40cm, and the hole diameter is 5 mm.

In this embodiment, the sprinkling system 9 sets up on the arched girder 4 in, and be provided with two at least on every arched girder 4 in, stagger each other between the sprinkling system 9 that sets up on two adjacent arched girders 4, avoid being located the same axis, guarantee that the spraying face covers more extensively.

In the embodiment, the roller shutter motor is a single-side rocker arm type roller shutter motor, the power of the roller shutter motor is 1500-2000W, and the roller shutter needs 7-8 min for rolling the inner layer heat preservation quilt.

As shown in fig. 2, in this embodiment, a vent of 60-80 cm is reserved at the high point of the front roof of the outer shed, a tuyere shed film covers the vent, the width of the tuyere shed film is 2.5m, two ends of the tuyere shed film are fixed on the wall bodies on two sides of the greenhouse, and the rear end of the tuyere shed film is fixed on the rear wall surface.

As shown in fig. 4-8, in this embodiment, the spraying system 9 includes a central shaft 902, a ball capstan 901, and a rotating disc 908, where the central shaft 902 is a hollow cylindrical rod, the upper end of the central shaft 902 is movably connected to the ball capstan 901, the ball capstan 901 is connected to the upper inner arched beam 4 through a fixing seat, the lower end of the ball capstan is provided with a cup 903, the upper surface of the cup 903 is in contact with the rotating disc 908, the rotating disc 908 is in a circular ring structure, the inner annular surface of the rotating disc 908 is engaged with teeth 919 on the outer wall of the rotating shaft 904, the rotating shaft 904 is movably connected to the central shaft 902 through a bearing 920, the bottom inside the cup 903 is provided with a motor 907, an output shaft of the motor 907 is keyed to be connected to a driving wheel 906, and the driving wheel 906 is engaged with a driven wheel.

The upper surface of the rotary disc 908 is provided with an annular irrigation cylinder 909, the outer side wall of the annular irrigation cylinder 909 is provided with a plurality of irrigation holes 918, an annular supporting plate 911 and an annular cover plate 912 are arranged above the annular irrigation cylinder 909, the inner annular surfaces of the annular supporting plate 911 and the annular cover plate 912 are fixedly connected with the central shaft 902, a liquid storage bin 913 is arranged between the annular supporting plate 911 and the annular cover plate 912, the bottom of the liquid storage bin 913 is provided with a liquid outlet 916, the upper surface of the annular irrigation cylinder 909 is provided with a liquid inlet 910 communicated with the liquid storage bin 913, a liquid injection pipe 917 is arranged inside the central shaft 902, the liquid injection pipe 917 comprises two pipe orifices, one pipe orifice penetrates through the side wall of the central shaft 902 and extends into the liquid storage bin 913, and the other pipe orifice penetrates through the side wall of the central shaft 902.

The motor 907 powers the rotation of the rotating disc 908 and the annular pouring cylinder 909, and the driven wheel 905 is used for transmitting the rotation of the motor 907 to the rotating disc 908 and the annular pouring cylinder 909. The liquid injection pipe 917 is used for delivering water or pesticide in the liquid injection pipe 10 to the liquid storage tank 913, the liquid storage tank 913 is used for temporarily storing the water or pesticide for spraying, and the annular irrigation cylinder 909 is used for irrigating the crops by the water or pesticide through the irrigation hole 918.

The liquid storage bin 913 is an annular cylinder structure formed by hermetically connecting an inner ring 914, an outer ring 915, an annular support plate 911 and an annular cover plate 912, the liquid outlet 916 is disposed on the annular support plate 911, a first annular sliding groove 925 is disposed on the lower surface of the annular support plate 911, first mounting grooves 924 at equal intervals are disposed on the upper surface of the annular pouring cylinder 909, a first ball 922 is mounted in each first mounting groove 924, and the exposed part of the first ball 922 is located in the first annular sliding groove 925. In this embodiment, the diameter of the liquid storage 913 is larger than the diameter of the annular irrigation cylinder 909.

In this embodiment, the outer sidewalls of the annular cover plate 912, the outer ring 914, the annular support plate 911, the annular irrigation cylinder 909, the turntable 908 and the sleeve 903 are flush, so as to improve the aesthetic appearance of the overall structure of the sprinkler system and improve the irrigation range of the annular irrigation cylinder.

The inlet 910 is an annular opening circumferentially distributed along the upper surface of the annular pouring cylinder 909, and the outlet 916 is provided with a plurality of openings and is equally spaced along the circumference of the annular supporting plate 911. And the inner hole of the liquid outlet 916 on the annular supporting plate 911 is smaller than the annular diameter of the liquid inlet 910.

In order to reduce the resistance when the carousel 908 rotates, be provided with equidistant second mounting groove 926 at the upper surface of retainer cup 903, be provided with second ball 923 in the second mounting groove 926, be provided with second annular spout 927 on the lower surface of carousel 908, the exposed part of second ball 923 is located second annular spout 927. Thereby achieving sliding contact of the dial 908 with the sleeve 903.

The bearings 920 are provided with two ends which are respectively located at the rotating shaft 904, wherein cushion blocks 921 are respectively arranged above the bearings 920 located at the upper end of the rotating shaft 904 and below the bearings 920 located at the lower end of the rotating shaft 904, and the cushion blocks 921 are fixedly connected with the central shaft 902.

When irrigation is carried out, the infusion tube is communicated with the reservoir, and the reservoir is arranged in the sunlight greenhouse and is at least 1m away from the east side wall or the west side wall. The transfer line carries the water in the cistern to annotating the liquid pipe, carries water to the stock solution storehouse earlier by annotating the liquid pipe, and the liquid outlet of stock solution storehouse below is delivered water to annular watering section of thick bamboo in through the inlet of intercommunication. The synchronous starter motor, the drive rotates from the rotatory pivot that drives of driving wheel and rotates together, and annular watering section of thick bamboo on the carousel rotates thereupon, and the water in it irrigates the crop through watering hole, and the degree of mobilization is high, has saved manpower and material resources greatly, has improved the efficiency and the effect of irrigating. The application process can refer to the irrigation process.

In this embodiment, a storage battery may be further disposed on the turntable to provide electric power to the motor.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A double-layer heat-preservation sunlight greenhouse is characterized by comprising a heat-preservation wall body and a greenhouse framework, wherein the heat-preservation wall body is structurally in the east-west trend, the east-west length is 75-85, the north-south span is 8.5-9.5 m, the west-side wall and the east-side wall are heat-preservation wall bodies, an outer layer shed and an inner layer shed are arranged between the west-side wall and the east-side wall, the outer layer shed comprises an outer arch frame formed by a plurality of outer arch beams in parallel distribution, an outer covering film covers the outer side of the outer arch frame, a plurality of outer arch pull rods are arranged on the inner side of the outer arch frame, the inner layer shed comprises an inner arch frame formed by a plurality of inner arch beams in parallel distribution, an inner covering film covers the outer side of the inner arch frame, a plurality of inner arch pull rods are arranged on the inner side of the inner arch frame, the inner layer heat preservation quilt is wound on the reel, one end of the reel is movably connected to the left wall body, the other end of the reel is connected with the roller shutter motor fixed on the right wall body, and the inner layer heat preservation quilt is lifted by the roller shutter motor and the pull rope in a rotating mode.

2. The double-layer heat-preservation sunlight greenhouse is characterized in that the bottom of the rear wall surface of the outer arch is connected with an embedded part or a ground ring beam embedded in the ground by 40-50 cm.

3. The double-layer heat-preservation sunlight greenhouse of claim 1 is characterized in that the upper end of the inner arch is fixed on the rear wall surface, and the lower end of the inner arch is connected with an embedded part or a ground ring beam embedded 40-50 cm below the ground and is flush with the bottom of the rear wall surface of the outer arch.

4. The double-layer heat-insulation sunlight greenhouse is characterized in that a ventilation opening of 60-80 cm is reserved at a high point of a front roof of the outer layer greenhouse, and a tuyere greenhouse film covers the ventilation opening.

5. The double-layer heat-preservation sunlight greenhouse is characterized in that the spraying system comprises a central shaft, a ball winch and a rotary table, the central shaft is a hollow cylindrical rod, the upper end of the central shaft is movably connected with the ball winch, the ball winch is connected with an upper inner arched beam through a fixing seat, a sleeve cup is arranged at the lower end of the ball winch, the upper surface of the sleeve cup is in contact with the rotary table, the rotary table is of a circular ring structure, the inner ring surface of the rotary table is meshed with teeth on the outer wall of a rotary shaft, the rotary shaft is movably connected with the central shaft through a bearing, a motor is arranged at the bottom of the inner side of the sleeve cup, an output shaft of the motor is in key connection with a driving wheel, and the driving wheel is meshed with a driven;

6. The double-layer heat-preservation sunlight greenhouse according to claim 5 is characterized in that the liquid storage bin is of an annular cylinder structure formed by sealing and connecting an inner ring, an outer ring, an annular supporting plate and an annular cover plate, the liquid outlet is formed in the annular supporting plate, a first annular sliding groove is formed in the lower surface of the annular supporting plate, first mounting grooves with equal intervals are formed in the upper surface of the annular irrigation cylinder, a first ball is mounted in each first mounting groove, and the exposed part of each first ball is located in the first annular sliding groove.

7. The double-layer heat-preservation sunlight greenhouse of claim 6 is characterized in that the liquid inlet is an annular opening which is annularly distributed along the annular surface of the annular pouring cylinder, and the liquid outlet is provided with a plurality of annular openings which are annularly and equidistantly distributed along the annular support plate.

8. The double-layer heat-preservation sunlight greenhouse according to claim 5 is characterized in that second mounting grooves with equal intervals are formed in the upper surface of the sleeve cup, second balls are arranged in the second mounting grooves, a second annular sliding groove is formed in the lower surface of the rotary table, and the exposed part of the second balls is located in the second annular sliding groove.

9. The double-layer heat-preservation sunlight greenhouse according to claim 5 is characterized in that two bearings are arranged and are respectively positioned at two ends of the rotating shaft, wherein cushion blocks are respectively arranged above the bearings positioned at the upper end of the rotating shaft and below the bearings positioned at the lower end of the rotating shaft, and the cushion blocks are fixedly connected with the central shaft.

10. The double-layer heat-preservation sunlight greenhouse of claim 5 is characterized in that the outer side walls of the annular cover plate, the outer ring, the annular supporting plate, the annular pouring cylinder, the rotary disc and the sleeve cup are flush.