CN108934629A - Greenhouse and cotton-wadded quilt fixing means - Google Patents
Greenhouse and cotton-wadded quilt fixing means Download PDFInfo
- Publication number
- CN108934629A CN108934629A CN201811060264.0A CN201811060264A CN108934629A CN 108934629 A CN108934629 A CN 108934629A CN 201811060264 A CN201811060264 A CN 201811060264A CN 108934629 A CN108934629 A CN 108934629A
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- China
- Prior art keywords
- heat
- big
- cotton
- preservation cotton
- canopy framework
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/22—Shades or blinds for greenhouses, or the like
- A01G9/227—Shades or blinds for greenhouses, or the like rolled up during non-use
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Greenhouses (AREA)
Abstract
This application involves greenhouses to build technical field, more particularly to a kind of greenhouse and cotton-wadded quilt fixing means, it include big-canopy framework and heat-preservation cotton quilt, the heat-preservation cotton is laid on the outer surface of the big-canopy framework, is fixed with big-canopy framework by the steel nail that nail gun projects using nail gun, by heat-preservation cotton.So set, install heat-preservation cotton by when, heat-preservation cotton is fixed on big-canopy framework using nail gun, operate it is convenient, it is time saving and energy saving, not only save manpower, but also improve the working efficiency that greenhouse is built.
Description
Technical field
This application involves greenhouses to build technical field, fixes more specifically to a kind of greenhouse and cotton-wadded quilt
Method.
Background technique
The popularization and application of day-light greenhouse are the important symbols of modern agriculture, it gets rid of traditional agriculture by natural gas
The restriction of time condition, makes yield per unit area increase substantially, while also ensuring the annual stable market supply of vegetable melon and fruit.But
It is the winter and autumn and winter of most area and at the end of winter and the beginning of spring in China, very cold and day and night temperature is big.In order to meet crop
The requirement of growth, in addition to daytime is by other than solar radiation, night must also manually be heated heliogreenhouse, as flue heating,
Hot-blast stove heating etc..These traditional heating methods consume a large amount of traditional energy, increase greenhouse cost, and to environment
It pollutes.
In the prior art, greenhouse is made of wall and arc bracket, heat-preservation cotton quilt is equipped on arc bracket, in the winter
Ji Baitian heat-preservation cotton, which is required, rolls daylighting, and evening heat-preservation cotton is released out, and is booth thermal insulation.But the wall of greenhouse
Body is built time-consuming and laborious, and consumptive material is more, not only increases workload, but also causes the waste of resource；Moreover, installing fixed cotton
By when, fixes, or is tied up using iron wire, it is complete that such mode is required to auxiliary instrument usually using drilling tail nail and screw
It is big and time-consuming and laborious at, manual operation difficulty, to cause slow installation speed, longevity of service and ineffective ask
Topic.
Therefore, how to solve existing greenhouse and its cotton-wadded quilt installation is time-consuming and laborious and longevity of service, work
The problem of low efficiency is those skilled in the art's key technical problem to be solved.
Summary of the invention
To be overcome the problems, such as present in the relevant technologies at least to a certain extent, the application's is designed to provide a kind of temperature
Room greenhouse and cotton-wadded quilt fixing means, solve existing greenhouse and its cotton-wadded quilt installation is time-consuming and laborious and longevity of service,
Ineffective problem.
This application provides a kind of cotton-wadded quilt fixing means of greenhouse, include:
It is fixed with big-canopy framework by the steel nail that the nail gun projects using nail gun, by heat-preservation cotton.
Preferably, further include having:
The big-canopy framework is built by default specification；
The heat-preservation cotton is laid on to the outer surface of the big-canopy framework；
The heat-preservation cotton is fixed by the junction with the big-canopy framework by the steel nail.
Preferably, the building method of the big-canopy framework includes:
Build support frame；
Arc bracket is built, the arc bracket and support frame as described above support；
Wherein, support frame as described above is built with the arc bracket by steel pipe.
Preferably, the application method of the nail gun includes:
The nailing mouth of the nail gun is offseted with the heat-preservation cotton and is directed at the big-canopy framework；
Nail gun switch is triggered, projects the steel nail by the nailing mouth and penetrate the heat-preservation cotton to be fixed in
On the big-canopy framework.
Preferably, the nailing mouth is offseted with the heat-preservation cotton by gasket so that the steel nail across the gasket,
And the heat-preservation cotton is fixed on the big-canopy framework.
Preferably, it is laid on the heat-preservation cotton quilt of the upper surface of the arc bracket, in the top of the arc bracket
It is fixed.
Preferably, it is laid on the heat-preservation cotton quilt of the two side ends of the arc bracket, in the arc of the arc bracket
Edge is fixed.
Present invention also provides a kind of greenhouses based on cotton-wadded quilt fixing means described in any one as above includes
The big-canopy framework and the heat-preservation cotton quilt, the heat-preservation cotton are laid on the outer surface of the big-canopy framework and by described
Steel nail is fixed.
Preferably, the big-canopy framework includes support frame and arc bracket, and support frame as described above and the arc bracket are equal
It is built by steel pipe, the arc bracket is supported by support frame as described above and fixed；
Be preferably located at the heat-preservation cotton quilt of the greenhouse lighting surface, in the arc bracket top fixation,
And it can roll from the bottom to top.
Technical solution provided by the present application can include the following benefits:
Install heat-preservation cotton by when, heat-preservation cotton is fixed on big-canopy framework using nail gun, operate convenient, time saving province
Power not only saves manpower, but also improves the working efficiency that greenhouse is built.
Further, big-canopy framework is built using steel pipe, it is not only convenient and efficient, but also can guarantee the stability of structure, Jin Eryou
Efficiency, time saving and energy saving, save the cost are built conducive to promotion greenhouse；Moreover, steel pipe can have with the good fixation of steel nail
Conducive to the promotion fixed stability of heat-preservation cotton, and then extend the service life of greenhouse.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The application can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structure chart of greenhouse shown according to some exemplary embodiments；
In figure: 1- heat-preservation cotton quilt, 2- arc bracket, 3- support frame.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they are only and the application
The consistent device or method of some aspects example.
Present embodiment provides a kind of greenhouse and cotton-wadded quilt fixing means uses nail gun when installing cotton-wadded quilt
Cotton-wadded quilt is fixed on greenhouse, the method more fixed than traditional drilling tail nail and screw improves two to three times effect, saves
Human resources, save installation cost, have increased exponentially the installation speed of agricultural greenhouse, solve existing greenhouse
And its cotton-wadded quilt installation is time-consuming and laborious and longevity of service, ineffective problem.
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Hereinafter, being illustrated referring to attached drawing to embodiment.In addition, embodiments illustrated below is not to recorded in claim
Summary of the invention rise any restriction effect.In addition, the full content of composition represented by following example is not limited to as right
Necessary to the solution invented documented by it is required that.
With reference to Fig. 1, present embodiment provides a kind of cotton-wadded quilt fixing means of greenhouse, includes:
It is fixed by 1 and big-canopy framework by the steel nail that nail gun projects using nail gun, by heat-preservation cotton.
Wherein, nail gun can be gunpowder nailing gun, be also possible to pneumatic stapler, can also be electric nail gun, some
In embodiment, nail gun includes steel nail and emitter, and under the action of emitter, steel nail is gone out by the internal emission of nail gun,
Since the steel nail launched has biggish kinetic energy, so that steel nail is passed through heat-preservation cotton and be fixed on big-canopy framework by 1.The operation of nail gun
It is convenient and efficient, time saving and energy saving, manpower can either be saved, and working efficiency can be promoted.
It should be noted that it can also be equipped with plastic film between big-canopy framework and heat-preservation cotton are by 1, in this way, so that
It obtains and forms greenhouse inside greenhouse, and then be conducive to the crop growth in greenhouse, be conducive to promote yield.
In some embodiments, the cotton-wadded quilt fixing means of greenhouse can also include:
Big-canopy framework is built by default specification；
Wherein, default specification can be determined according to the specification of actual greenhouse and the structure of greenhouse, can
To be the structure of wall and bracket, it is also possible to the structure of bracket, depending on actually building situation.
The outer surface that heat-preservation cotton is laid on big-canopy framework by 1；
Wherein, be laid with heat-preservation cotton by 1 in the outer surface of big-canopy framework, be in order to by heat-preservation cotton by 1 and the phase of big-canopy framework
It is corresponding to position, in order to which heat-preservation cotton is by 1 installation, certainly, plastic film can also be equipped in the outer surface of big-canopy framework.
Here, described " outer surface " may include having lighting surface, shady face and side end face in some embodiments, as shown in Figure 1, adopting
Smooth surface is one side of the greenhouse towards sunlight, and shady face is one side of the greenhouse backwards to sunlight, in this way, it is big to be conducive to greenhouse
Canopy obtains sufficient illumination.
Heat-preservation cotton is fixed with the junction of big-canopy framework by steel nail by 1.
Nail gun is operated, and heat-preservation cotton is fixed by 1 with big-canopy framework, wherein big-canopy framework can be made of multiple groups bracket,
Bracket can be built by multiple support rods, and " junction " mentioned here can be the edge that crosses of two adjacent groups bracket
Place, is also possible to junction or the intersection location of adjacent supports bar, specifically depending on actual conditions.
Specifically, the building method of big-canopy framework may include having:
Build support frame 3；
The support frame 3 is fixed on ground and above ground level, can be to support the top structure of greenhouse, top knot
Structure can be the top-support of greenhouse, and the heat-preservation cotton for being also possible to be laid with is by 1 and plastic film.
Arc bracket 2 is built, arc bracket 2 is supported by support frame 3；
Wherein, under the action of support frame 3, there are spaces, the inside temperature to form greenhouse for the lower part of arc bracket 2
Room, in some embodiments, the lighting surface of arc bracket 2 is greater than shady face, in this way to guarantee sufficient illumination, moreover, arc knot
The protrusion direction of the bracket of structure can outwardly, can make the inside of greenhouse have biggish space in this way.
Wherein, support frame is built with arc bracket 2 by steel pipe.
It is not only convenient and efficient when being built using steel pipe since steel pipe has more firm characteristic, but also can guarantee the steady of structure
Solidity, and then be conducive to promote greenhouse and build efficiency, time saving and energy saving, save the cost；Moreover, steel pipe can be good with steel nail
Good fixation is conducive to be promoted heat-preservation cotton by 1 fixed stability, and then extends the service life of greenhouse.
In some embodiments, the application method of nail gun can specifically include:
The nailing mouth of nail gun is offseted with heat-preservation cotton by 1 and is directed at big-canopy framework；
Nail gun switch is triggered, projects steel nail by nailing mouth and penetrate heat-preservation cotton to be fixed on big-canopy framework by 1.
Wherein, the direction that the steel nail of nail gun projects should be towards heat-preservation cotton by 1 and big-canopy framework, in this way to guarantee steel nail energy
Enough to be fixed on big-canopy framework across heat-preservation cotton by 1, here, the stem of steel nail has ailhead, and tail portion has the head of a nail, after installation,
Ailhead for being fixed with big-canopy framework, the head of a nail to constrain heat-preservation cotton by 1, so that heat-preservation cotton is linked together by 1 with big-canopy framework.
Further, the nailing mouth is offseted with the heat-preservation cotton by 1 by gasket, so that the steel nail passes through the pad
The heat-preservation cotton is simultaneously fixed on the big-canopy framework by piece by 1.
Since the size of the head of a nail is smaller, restriction ability is poor, and when being separated with gasket, for the head of a nail for constraining gasket, gasket is right again
Heat-preservation cotton is constrained by 1, to play to heat-preservation cotton by 1 fixed function, in this way, keeping heat-preservation cotton more firm by 1 fixation.
In some embodiments, the heat-preservation cotton of the upper surface of arc bracket 2 is laid on by 1, is consolidated in the top of arc bracket 2
It is fixed.
Wherein, the upper surface of arc bracket 2 may include having lighting surface, can also include shady face, according to greenhouse bone
Depending on the specific configuration of frame；And the top of arc bracket 2 is located at the spike zone of big-canopy framework, the spike zone arcuately bracket
Extending direction extend, in this way, being conducive to that heat-preservation cotton is rolled and accumulate and the top of arc bracket 2 by 1.
In some embodiments, the heat-preservation cotton of the two side ends of arc bracket 2 is laid on by 1, in the arc-shaped side edge of arc bracket 2
It is fixed.
Wherein, the two side ends of arc bracket 2 are the side end face of big-canopy framework, are for convenience hung up heat-preservation cotton by 1, simultaneously
It is connect with big-canopy framework, the arc-shaped side edge that heat-preservation cotton is fastened on arc bracket 2 by 1, " arc-shaped side edge " here can be with
For the position that lighting surface and shady face and side end face have a common boundary, the i.e. actuated position of 2 side end of arc bracket, in this way, facilitating will protect
Warm cotton-wadded quilt 1, which is hung up, to be fixed, and is conducive to open up inlet and outlet.
Specifically, in some embodiments, big-canopy framework includes support frame 3 and arc bracket 2, and overall structure, which has, adopts
Smooth surface, shady face and side end face, arc bracket 2 are located at the lighting surface and shady face of big-canopy framework, and support frame 3 is located at greenhouse
Inside and side end face, be used to support arc bracket 2, above-mentioned " top " is located at the spike zone of big-canopy framework, in this way, in order to
Heat-preservation cotton is rolled to by 1, is placed in the top of big-canopy framework；And support frame 3 is built with arc bracket 2 by steel pipe, steel
It is connected with each other between pipe and steel pipe, above-mentioned " arc-shaped side edge " can be located at the edge placement of arc bracket 2, can also be located at adjacent
The link position of steel pipe may be located on the load-bearing position of single steel pipe.
Present embodiment additionally provides a kind of greenhouse, the cotton-wadded quilt fixation side stated based on the above embodiment
Method includes big-canopy framework and heat-preservation cotton by 1, and the outer surface which is laid on big-canopy framework by 1 simultaneously passes through above-mentioned steel nail
It is fixed.So set, being fixed on heat-preservation cotton on big-canopy framework by 1 using nail gun when installing heat-preservation cotton by 1, it is convenient to operate,
It is time saving and energy saving, manpower is not only saved, but also improve the working efficiency that greenhouse is built.
In some embodiments, big-canopy framework includes support frame 3 and arc bracket 2, wherein support frame 3 and arc bracket 2
It is built by steel pipe, it is not only convenient and efficient when being built using steel pipe since steel pipe has more firm characteristic, but also can protect
The stability of structure is demonstrate,proved, and then is conducive to promote greenhouse and builds efficiency, time saving and energy saving, save the cost；Moreover, steel pipe energy
It is enough to be conducive to be promoted heat-preservation cotton by 1 fixed stability with the good fixation of steel nail, and then extend greenhouse uses the longevity
Life；Arc bracket 2 is supported by support frame 3 and is fixed, and makes the side of arc bracket 2 being predominantly located in towards sunlight, in this way,
It can guarantee that sufficient illumination can be obtained inside greenhouse, facilitate the growth of internal plant.
Further, it is fixed on the top of arc bracket 2 by 1 positioned at the heat-preservation cotton of greenhouse lighting surface, so that should
The top of greenhouse can be rolled from the bottom to top and be overlayed to part heat-preservation cotton by 1, in this way, facilitating adjustment heat-preservation cotton by 1
Covering state, i.e. daytime reduce heat-preservation cotton by 1 area coverage, to increase illumination, increase heat-preservation cotton at night by 1 covering surface
It accumulates, to improve heat insulation effect, and then may advantageously facilitate the growth of plant inside greenhouse.
It should be noted that above-mentioned refer to that heat-preservation cotton is moved to and is leaned on by the position close to ground by 1 " from the bottom to top "
The position at the top of nearly big-canopy framework.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of cotton-wadded quilt fixing means of greenhouse, which is characterized in that include:
It is fixed with big-canopy framework by the steel nail that the nail gun projects using nail gun, by heat-preservation cotton by (1).
2. cotton-wadded quilt fixing means as described in claim 1, which is characterized in that further include having:
The big-canopy framework is built by default specification；
The heat-preservation cotton is laid on to the outer surface of the big-canopy framework by (1)；
The heat-preservation cotton is fixed by (1) and the junction of the big-canopy framework by the steel nail.
3. cotton-wadded quilt fixing means as claimed in claim 2, which is characterized in that the building method of the big-canopy framework includes:
Build support frame (3)；
It builds arc bracket (2), the arc bracket (2) is supported by support frame as described above (3)；
Wherein, support frame as described above (3) is built with the arc bracket (2) by steel pipe.
4. cotton-wadded quilt fixing means as described in claim 1, which is characterized in that the application method of the nail gun includes:
The nailing mouth of the nail gun is offseted with the heat-preservation cotton by (1) and is directed at the big-canopy framework；
Nail gun switch is triggered, projects the steel nail by the nailing mouth and penetrate the heat-preservation cotton quilt (1) to be fixed on institute
It states on big-canopy framework.
5. cotton-wadded quilt fixing means as claimed in claim 4, which is characterized in that the nailing mouth passes through gasket and the heat-preservation cotton
It is offseted by (1), so that the steel nail passes through the gasket and is fixed on the heat-preservation cotton on the big-canopy framework by (1).
6. cotton-wadded quilt fixing means as claimed in claim 3, which is characterized in that be laid on the upper surface of the arc bracket (2)
The heat-preservation cotton by (1), fixed in the top of the arc bracket (2).
7. cotton-wadded quilt fixing means as claimed in claim 3, which is characterized in that be laid on the two side ends of the arc bracket (2)
The heat-preservation cotton by (1), in the arc bracket (2) arc-shaped side along fixed.
8. a kind of greenhouse, based on the cotton-wadded quilt fixing means as described in claim 1-7 any one, which is characterized in that packet
The big-canopy framework and the heat-preservation cotton have been included by (1), the heat-preservation cotton be laid on by (1) big-canopy framework outer surface,
And it is fixed by the steel nail.
9. greenhouse as claimed in claim 8, which is characterized in that the big-canopy framework includes support frame (3) and arc
Bracket (2), support frame as described above (3) and the arc bracket (2) are built by steel pipe, and the arc bracket (2) is by described
Support frame (3) support is fixed.
10. greenhouse as claimed in claim 9, which is characterized in that positioned at the heat preservation of the greenhouse lighting surface
Cotton-wadded quilt (1), in the arc bracket (2) top fixation and can roll from the bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060264.0A CN108934629A (en) | 2018-09-12 | 2018-09-12 | Greenhouse and cotton-wadded quilt fixing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060264.0A CN108934629A (en) | 2018-09-12 | 2018-09-12 | Greenhouse and cotton-wadded quilt fixing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108934629A true CN108934629A (en) | 2018-12-07 |
Family
ID=64476492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811060264.0A Pending CN108934629A (en) | 2018-09-12 | 2018-09-12 | Greenhouse and cotton-wadded quilt fixing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108934629A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040010432A (en) * | 2003-12-03 | 2004-01-31 | 이기도 | A vinyl house heat insulation bedding linking zipper fix method |
| CN104541973A (en) * | 2014-12-31 | 2015-04-29 | 平泉县瀑河源食品有限公司 | Greenhouse capable of annually producing edible mushrooms |
| CN206776253U (en) * | 2017-06-13 | 2017-12-22 | 河南农业大学 | Large span heat-insulation plastic greenhouse |
| CN107920477A (en) * | 2015-08-27 | 2018-04-17 | 国立大学法人东京大学 | Plant culture greenhouse |
-
2018
- 2018-09-12 CN CN201811060264.0A patent/CN108934629A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040010432A (en) * | 2003-12-03 | 2004-01-31 | 이기도 | A vinyl house heat insulation bedding linking zipper fix method |
| CN104541973A (en) * | 2014-12-31 | 2015-04-29 | 平泉县瀑河源食品有限公司 | Greenhouse capable of annually producing edible mushrooms |
| CN107920477A (en) * | 2015-08-27 | 2018-04-17 | 国立大学法人东京大学 | Plant culture greenhouse |
| CN206776253U (en) * | 2017-06-13 | 2017-12-22 | 河南农业大学 | Large span heat-insulation plastic greenhouse |
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Application publication date: 20181207 |
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