CN203838497U - Plastic greenhouse film winding and unwinding automatic control device - Google Patents
Plastic greenhouse film winding and unwinding automatic control device Download PDFInfo
- Publication number
- CN203838497U CN203838497U CN201420163735.1U CN201420163735U CN203838497U CN 203838497 U CN203838497 U CN 203838497U CN 201420163735 U CN201420163735 U CN 201420163735U CN 203838497 U CN203838497 U CN 203838497U
- Authority
- CN
- China
- Prior art keywords
- motor
- switch
- joint
- pipe
- automaton
- Prior art date
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The utility model discloses a greenhouse film winding and unwinding automatic control device which comprises two portions including a motor transmission mechanism and a control circuit. The motor transmission mechanism comprises a film winding and unwinding rod, a commutator joint, a retractable sleeve rod, a cardan joint and a three-phase alternating-current motor. The film winding and unwinding rod is connected with one end of the retractable sleeve rod through the commutator joint. The three-phase alternating-current motor is connected with the other end of the retractable sleeve rod through the cardan joint. The control circuit comprises a forward logic circuit, a reverse logic circuit and a stop switch. According to the utility model, the electric greenhouse film winding and unwinding operation and the automatic operation which is controlled by the air temperature set value in the greenhouse can be realized; the whole device has advantages of simple mechanical structure design and low manufacture cost; and the motor is fixed on the ground, so safety problems caused by top arrangement and movement do not exist, the advantage of convenient maintenance can be realized, and the device is suitable for being popularized and used.
Description
Technical field
The utility model relates to industrialized agriculture field, relates in particular to a kind of plastic greenhouse film volume and puts automaton.
Background technology
Industrialized agriculture is the important development direction of current China's agricultural modernization.For strengthening the controllability of agricultural planting environment, warmhouse booth is generally adopted, and wherein arch plastic film shed is favored by peasant deeply because it is cheap, construction is convenient.Along with agriculture large-scale development, the contradiction increasing between film booth area and manpower shortage progressively highlights, and especially in summer high temperature rainy season, normal because of artificial volume, to put film speed slow, and the interior quick heating of booth, brings adverse effect to plant growth.Objectively, need to adjust by technical progress and industry policy, increase greenhouse film rolling up and down machine tool and automation mechanized operation device, help peasant to tackle calmly climate change.At present, have method for designing and the apparatus structure that some patent documentations have been introduced greenhouse film rolling up and down machine both at home and abroad.For example, patent " Novel rolling blind machine " (application number 201020101146.2) proposes a kind of Design of Mechanical Structure method that integrates roller shutter and snow removing function.Patent " a kind of curtain rolling-up machine for vegetable green house " (application number 201210213924.0) proposes a kind of straw screen or mat volume that motor is positioned over to roof and puts method.Patent " a kind of greenhouse roller " (application number 201210254603.5) propose a kind of with sway brace and rocker arm composition by motor mobile building method together with curtain rolling pole.Patent " winter warm type big shack film rolling up and down machine " (application number 201320264738.X) proposes a kind of chassis design method with road wheel.Although these Patent designs have certain novelty, part all comes with some shortcomings.Main problem is: the one, motor is contained in to booth top, and because motor weight is larger, need to there is reliable and secure brace foundation, this not only increases cost, and system debug is safeguarded also inconvenient; The 2nd, the automaticity that greenhouse film volume is put is not high.Although electric rolling is more convenient, but still need manually carry out start stop operation, labour costs does not reduce.At present, for south China summer high temperature weather, morning, temperature rise was fast, and greenhouse film volume is put the features such as frequent, and greenhouse film volume puts autocontrol method and related device yet there are no bibliographical information.
Summary of the invention
In order to overcome existing greenhouse film volume, put the safety that operation brings motor top set and safeguard the shortcomings such as inconvenience, the needs of simultaneously automatically controlling in conjunction with temperature, the utility model provides a kind of greenhouse film volume to put automaton.
The greenhouse film volume that the utility model adopts is put automaton, it is characterized in that: comprise motor transmission mechanism and operation circuit two parts, described motor transmission mechanism comprises that film roll is put bar, joint, telescopic sleeving rod, universal joint and three phase alternating current motor commutate, described film roll is put bar and is connected with described telescopic sleeving rod one end by described commutation joint, described three phase alternating current motor is connected with the described telescopic sleeving rod other end by described universal joint, and described operation circuit comprises forward logic, reverse logic circuit and shutdown switch.
Further, described telescopic sleeving rod is comprised of the pipe of two different bores, wherein on the tube wall of heavy caliber pipe, have notch, on the tube wall of small-bore pipe with connecting pin, small-bore pipe is inserted in the notch of heavy caliber pipe by connecting pin, when small-bore pipe rotates, by connecting pin, drive heavy caliber pipe to rotate, heavy caliber pipe also can be done longitudinal sliding motion along the relatively small-bore pipe of connecting pin.
Further, described commutation joint is formed by the first cone pulley and the engagement of the second cone pulley, and the first described cone pulley is fixed on described film roll and puts on bar one end, and the second described cone pulley is fixed on described telescopic sleeving rod heavy caliber pipe.
Further, described universal joint comprises the first runner assembly, the second turning discreteness and coupling assembling, the first described runner assembly is connected with described the second turning discreteness by described coupling assembling, the first described runner assembly is fixed on described three phase alternating current motor main shaft, and described the second turning discreteness is fixed on the described small-bore pipe of telescopic sleeving rod.
Further, described three phase alternating current motor configuration speed reduction unit, rotating speed is that per minute 60 ~ 100 turns, and adopts two A.C. contactors to control respectively motor and rotates and reverse.
Further, described forward logic is put bar upper limit position switch, upper temperature limit switch, manual forward knob, motor forward contactor coil and reversion contacts of contactor switch by film roll and is formed, by upper temperature limit switch with manually forward knob is first in parallel, then put bar upper limit position switch, reversion contacts of contactor switch and motor forward contactor coil with film roll and connect.
Further, described reverse logic circuit is put bar lower position switch by film roll, lowest temperature switch, knob manually reverses, motor reversal contactor coil and forward contacts of contactor switch form, by lowest temperature switch and manually first parallel connection of reversion knob, put bar lower position switch with film roll again, forward contacts of contactor switch and the series connection of motor reversal contactor coil, described forward logic and described reverse logic link tester cross forward contacts of contactor switch and reversion contacts of contactor switch is realized interlocking, prevent because of just, reversion contactor coil powers on and the three-phase inlet wire short trouble that causes simultaneously.
Further, described stop button is connected on described forward and backward logic live wire end of incoming cables.
The utility model principle of work is as follows:
(1) manually volume operation on film: manual forward knob is pushed to on-position, and forward contactor coil powers on, positive contactor main contacts adhesive, the motor forward that powers on; Electric machine main shaft drives the first runner assembly of universal joint to rotate; The first runner assembly drives the second turning discreteness to rotate by coupling assembling; The second turning discreteness drives small-bore pipe to rotate; Small-bore pipe drives heavy caliber pipe to rotate by connecting pin; Large-diameter pipe subband is moved the second cone pulley rotation to joint; The second cone pulley is meshed and is driven the first cone pulley to rotate by gear; The first cone pulley drives film roll to put bar and rotates.When film roll, put while moving on to upper limit position switch position on bar, make upper limit position switch change to open mode from normally off, thereby cut off forward contactor coil power supply, positive contactor main contacts discharges, and motor stops, thereby completes volume operation on film.In motor forward process, because positive contactor auxiliary contact switch is opened, reversion contactor coil can not power on, thereby realizes interlocking, prevents the maloperation of reversing.When on film, volume has operated, due to forward contactor coil dead electricity, positive contactor auxiliary contact switch is recovered closure state, and motor possesses reversion service condition.
(2) manually film is transferred operation: the knob that will manually reverse pushes on-position, and reversion contactor coil powers on, the adhesive of reversion contactor main contacts, the motor reversion that powers on; Electric machine main shaft drives the first runner assembly of universal joint to rotate backward; The first runner assembly drives the second turning discreteness to rotate backward by coupling assembling; The second turning discreteness drives small-bore pipe to rotate backward; Small-bore pipe drives heavy caliber pipe to rotate backward by connecting pin; Large-diameter pipe subband move to joint the second cone pulley rotate backward; The second cone pulley is meshed and is driven the first cone pulley to rotate backward by gear; The first cone pulley drives film roll to put bar and rotates backward.When film roll is put bar and is moved down into lower position switch position, make lower position switch change to open mode from normally off, thereby cut off reversion contactor coil power supply, reversion contactor main contacts discharges, and motor stops, thereby complete film, transfers operation.In motor reversal process, due to reversion contacts of contactor switch opens, forward contactor coil can not power on, thereby realizes interlocking, prevents forward maloperation.When film is transferred while having operated, due to reversion contactor coil dead electricity, reversion contactor auxiliary contact switch is recovered closure state, and motor possesses forward service condition.
(3) greenhouse temperature is elevated to the film automatic coiling operation after the upper limit: upper temperature limit switch is first closed, and forward contactor coil is powered on, volume operation on starting film, and subsequent process is with (1).
(4) film that greenhouse temperature is reduced to after lower limit is transferred operation automatically: lowest temperature switch is first closed, and the contactor coil that makes to reverse powers on, and starting film is transferred operation, and subsequent process is with (2).
(5) shut-down operation: when needs motor operation suspension midway, or when running into fault and need to shut down, press stop button, all power-off of forward and backward contactor coil, motor stops.
The beneficial effects of the utility model are embodied in: can realize greenhouse film and roll up the electric operating of putting and the automation mechanized operation of being controlled by air themperature setting value in booth, significantly reduce manual work intensity; Whole device for mechanical structural design is simple, low cost of manufacture; Motor is fixed on to ground, there is no top set and the mobile safety problem of bringing, easy to maintenance, be applicable to applying.
Accompanying drawing explanation
Fig. 1 is the utility model single unit system structural representation.
Fig. 2 is the commutation joint structural representation in the motor transmission mechanism that relates to of the utility model.
Fig. 3 is the telescopic sleeving rod structural representation in the motor transmission mechanism that relates to of the utility model.
Fig. 4 is the gimbal structure front view in the motor transmission mechanism that relates to of the utility model.
Fig. 5 is the gimbal structure vertical view in the motor transmission mechanism that relates to of the utility model.
Fig. 6 is the gimbal structure A-A sectional view in the motor transmission mechanism that relates to of the utility model.
Fig. 7 is the three phase electric machine major loop wiring diagram that the utility model relates to.
Fig. 8 is the operation circuit figure that the utility model relates to.
In figure, 1-film roll is put bar; The 2-joint that commutates; 3-telescopic sleeving rod; 4-universal joint; 5-three phase alternating current motor; 6-forward logic; 7-reverse logic circuit; 8-shutdown switch; 21-the first cone pulley; 22-the second cone pulley; 31-heavy caliber pipe; 32-notch; The small-bore pipe of 33-; 34-connecting pin; 41-the first runner assembly; 42-the second turning discreteness; 43-coupling assembling; 44-set bolt; 45-set bolt; 46-connecting pin; 51-forward contactor coil; The positive contactor main contacts of 52-; The positive contactor auxiliary contact switch of 53-; The 54-contactor coil that reverses; 55-reversion contactor main contacts; 56-reversion contactor auxiliary contact switch; 61-film roll is put bar upper limit position switch; 62-upper temperature limit switch; The manual forward knob of 63-; 71-film roll is put bar lower position switch; 72-lowest temperature switch; The 73-knob that manually reverses; 8-stop button.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
With reference to accompanying drawing 1 ~ Fig. 8, a kind of greenhouse film volume in the present embodiment is put automaton, comprise motor transmission mechanism and operation circuit two parts, described motor transmission mechanism comprises that film roll puts bar 1, commutation joint 2, telescopic sleeving rod 3, universal joint 4 and three phase alternating current motor 5, described film roll is put bar 1 and is connected with described telescopic sleeving rod 3 one end by described commutation joint 2, described three phase alternating current motor 5 is connected with described telescopic sleeving rod 3 other ends by described universal joint 4, described operation circuit comprises forward logic 6, reverse logic circuit 7 and shutdown switch 8.
Described telescopic sleeving rod 3 is comprised of the pipe of two different bores, wherein on the tube wall of heavy caliber pipe 31, have notch 32, on the tube wall of small-bore pipe 33 with connecting pin 34, small-bore pipe 33 is inserted in the notch 32 of heavy caliber pipe 31 by connecting pin 34, when small-bore pipe 33 rotates, by connecting pin 34, drive heavy caliber pipe 31 to rotate, heavy caliber pipe 31 also can be done longitudinal sliding motion along the connecting pin 34 of small-bore pipe 33.
Described commutation joint 2 is formed by the first cone pulley 21 and the second cone pulley 22 engagements, and the first described cone pulley 21 is fixed on described film roll and puts on bar 1 one end, and the second described cone pulley 22 is fixed on described telescopic sleeving rod 3 heavy caliber pipes 31.
Described universal joint 4 comprises the first runner assembly 41, the second turning discreteness 42 and coupling assembling 43, the first described runner assembly 41 is connected with described the second turning discreteness 42 by described coupling assembling 43, the first described runner assembly 41 is fixed on described three phase alternating current motor 5 main shafts, and described the second turning discreteness 42 is fixed on the described small-bore pipe 33 of telescopic sleeving rod 3.。
Described three phase alternating current motor 5 configuration speed reduction units, rotating speed is that per minute 60 ~ 100 turns, and adopts two A.C. contactors 52,55 to control respectively motor and rotates and reverse.
Described forward logic 6 is put bar upper limit position switch 61, upper temperature limit switch 62, manual forward knob 63, forward contactor coil 51 and reversion contactor auxiliary contact switch 56 by film roll and is formed.By upper temperature limit switch 62 with manually forward knob 63 is first in parallel, then put bar upper limit position switch 61, reversion contactor auxiliary contact switch 56 and forward contactor coil 51 with film roll and connect.
Described reverse logic circuit 7 by film roll put bar lower position switch 71, lowest temperature switch 72, manually reverse knob 73, reversion contactor coil 54 and positive contactor auxiliary contact switch 53 forms.By lowest temperature switch 72 with manually reversion knob 73 is first in parallel, then put bar lower position switch 71, positive contactor auxiliary contact switch 53 and reversion contactor coil 54 with film roll and connect.
Described stop button 8 is connected on described forward and backward logic 6,7 live wire ends of incoming cables.
The operation steps of the present embodiment is as follows:
(1) manually volume operation on film: manual forward knob 63 is pushed to on-position, and forward contactor coil 51 powers on, positive contactor main contacts 52 adhesives, motor 5 forward that powers on; Electric machine main shaft drives the first runner assembly 41 of universal joint 4 to rotate; The first runner assembly 41 drives the second turning discreteness 42 to rotate by coupling assembling 43; The second turning discreteness 42 drives small-bore pipe 33 to rotate; Small-bore pipe 33 drives heavy caliber pipe 31 to rotate by connecting pin 34; Heavy caliber pipe 31 drives the second cone pulley 22 of commutation joint 2 to rotate; The second cone pulley 22 is meshed and is driven the first cone pulley 21 to rotate by gear; The first cone pulley 21 drives film roll to put bar 1 and rotates.When film roll, put while moving on to upper limit position switch 61 position on bar 1, make upper limit position switch 61 change to open mode from normally off, thereby cut off forward contactor coil 51 power supplys, positive contactor main contacts 52 discharges, and motor 5 stops, thereby completes volume operation on film.In motor 5 forward processes, because positive contactor auxiliary contact switch 53 is opened, reversion contactor coil 54 can not power on, thereby realizes interlocking, prevents the maloperation of reversing.When on film, volume has operated, due to forward contactor coil 51 dead electricity, positive contactor auxiliary contact switch 53 is recovered closure state, and motor 5 possesses reversion service condition.
(2) manually film is transferred operation: the knob 73 that will manually reverse pushes on-position, and reversion contactor coil 54 powers on, 55 adhesives of reversion contactor main contacts, motor 5 reversion that powers on; Electric machine main shaft drives the first runner assembly 41 of universal joint 4 to rotate backward; The first runner assembly 41 drives the second turning discreteness 42 to rotate backward by coupling assembling 43; The second turning discreteness 42 drives small-bore pipe 33 to rotate backward; Small-bore pipe 33 drives heavy caliber pipe 31 to rotate backward by connecting pin 34; Heavy caliber pipe 31 drives the second cone pulley 22 of commutation joint 2 to rotate backward; The second cone pulley 22 is meshed and is driven the first cone pulley 21 to rotate backward by gear; The first cone pulley 21 drives film roll to put bar 1 and rotates backward.When film roll is put bar 1 and is moved down into lower position switch 71 position, make lower position switch 71 change to open mode from normally off, thereby cut off reversion contactor coil 54 power supplys, reversion contactor main contacts 55 discharges, and motor 5 stops, thereby complete film, transfers operation.At motor anti-5, turn in journey, because reversion contactor auxiliary contact switch 56 is opened, forward contactor coil 51 can not power on, thereby realizes interlocking, prevents forward maloperation.When film is transferred while having operated, due to reversion contactor coil 54 dead electricity, reversion contactor auxiliary contact switch 56 is recovered closure states, and motor 5 possesses forward service condition.
(3) greenhouse temperature is elevated to the film automatic coiling operation after the upper limit: upper temperature limit switch 62 is first closed, and forward contactor coil 51 is powered on, volume operation on starting film, and subsequent process is with (1).
(4) film that greenhouse temperature is reduced to after lower limit is transferred operation automatically: lowest temperature switch 72 is first closed, and the contactor coil 54 that makes to reverse powers on, and starting film is transferred operation, and subsequent process is with (2).
(5) shut-down operation: when needs motor 5 operation suspension midway, or when running into fault and need to shut down, press stop button 8,51, the 54 all power-off of forward and backward contactor coil, motor 5 stops.
Content described in this instructions embodiment is only enumerating the way of realization of inventive concept; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also and the equivalent technologies means that can expect according to the utility model design in those skilled in the art.
Claims (6)
1. a plastic greenhouse film volume is put automaton, it is characterized in that: comprise motor transmission mechanism and operation circuit two parts, described motor transmission mechanism comprises that film roll is put bar, joint, telescopic sleeving rod, universal joint and three phase alternating current motor commutate, described film roll is put bar and is connected with described telescopic sleeving rod one end by described commutation joint, described three phase alternating current motor is connected with the described telescopic sleeving rod other end by described universal joint, and described operation circuit comprises forward logic, reverse logic circuit and shutdown switch.
2. adopt greenhouse film volume as claimed in claim 1 to put automaton, it is characterized in that: telescopic sleeving rod is comprised of the pipe of two different bores, wherein on the tube wall of heavy caliber pipe, have notch, on the tube wall of small-bore pipe, with connecting pin, small-bore pipe is inserted in the notch of heavy caliber pipe by connecting pin.
3. adopt greenhouse film volume as claimed in claim 1 to put automaton, it is characterized in that: commutation joint is formed by the first cone pulley and the engagement of the second cone pulley, the first described cone pulley is fixed on described film roll and puts on bar one end, and the second described cone pulley is fixed on described telescopic sleeving rod heavy caliber pipe.
4. adopt greenhouse film volume as claimed in claim 1 to put automaton, it is characterized in that: universal joint is comprised of the first runner assembly, the second turning discreteness and coupling assembling, the first described runner assembly is connected with described the second turning discreteness by described coupling assembling, the first described runner assembly is fixed on described three phase alternating current motor main shaft, and described the second turning discreteness is fixed on the described small-bore pipe of telescopic sleeving rod.
5. adopt greenhouse film volume as claimed in claim 1 to put automaton, it is characterized in that: forward logic is put bar upper limit position switch, upper temperature limit switch, manual forward knob, motor forward contactor coil and reversion contacts of contactor switch by film roll and formed.
6. adopt greenhouse film volume as claimed in claim 1 to put automaton, it is characterized in that: reverse logic circuit by film roll put bar lower position switch, lowest temperature switch, manually reverse knob, motor reversal contactor coil and forward contacts of contactor switch forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163735.1U CN203838497U (en) | 2014-04-07 | 2014-04-07 | Plastic greenhouse film winding and unwinding automatic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163735.1U CN203838497U (en) | 2014-04-07 | 2014-04-07 | Plastic greenhouse film winding and unwinding automatic control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203838497U true CN203838497U (en) | 2014-09-17 |
Family
ID=51516315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420163735.1U Expired - Fee Related CN203838497U (en) | 2014-04-07 | 2014-04-07 | Plastic greenhouse film winding and unwinding automatic control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203838497U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104663319A (en) * | 2015-02-13 | 2015-06-03 | 中国农业大学 | Upward pulling type sunlight greenhouse safety roller shutter system |
| CN104885818A (en) * | 2015-06-26 | 2015-09-09 | 常州市诚天电子有限公司 | Greenhouse film rolling device |
-
2014
- 2014-04-07 CN CN201420163735.1U patent/CN203838497U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104663319A (en) * | 2015-02-13 | 2015-06-03 | 中国农业大学 | Upward pulling type sunlight greenhouse safety roller shutter system |
| CN104885818A (en) * | 2015-06-26 | 2015-09-09 | 常州市诚天电子有限公司 | Greenhouse film rolling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202617823U (en) | Innovative multifunctional thermal insulation shed with automatic snow removal and rainproof functions | |
| CN203675762U (en) | Automatic curtain rolling control device | |
| CN204929833U (en) | A kind of automatic curtain rolling device for greenhouse | |
| CN102057846B (en) | Device and method for rapidly winding and unwinding outer sunshade screen of sunlight greenhouse | |
| CN202918828U (en) | Curtain rolling mechanism of breeding shed sun shading device | |
| CN204217575U (en) | Connect a special shutter of cultivation greenhouse sunshade net | |
| CN203838497U (en) | Plastic greenhouse film winding and unwinding automatic control device | |
| CN103397753B (en) | Shutter sunshading device capable of being packed up | |
| CN200946378Y (en) | Multiple system telescopic garage | |
| KR20140101525A (en) | The Device for opening and shutting double constant temperature cover in vinyl house | |
| CN201032776Y (en) | Light-sensitive automatic booth curtain rolling device | |
| CN207978525U (en) | A kind of greenhouse solar protection devices | |
| CN202455970U (en) | Automatically-controlled greenhouse sunshade device | |
| CN204860355U (en) | Automatic ventilation unit of big -arch shelter | |
| CN204887991U (en) | Self -propelled mowing -apparatus that hinders more | |
| CN204370893U (en) | On-vehicle tent | |
| CN207219618U (en) | A kind of edible mushroom photovoltaic green-house | |
| CN209676965U (en) | Screen for hothouse safety caging device | |
| CN208402683U (en) | Sun light green house Automaitc shade-rolling machine | |
| CN205196495U (en) | Automatic safety device against wind of sunlight greenhouse | |
| CN202979799U (en) | Full-automatic vegetable greenhouse sun-shading curtain rolling machine | |
| CN106617560A (en) | Full-automatic electronic-control umbrella | |
| CN205661303U (en) | Novel car is automatic to be sheltered from device | |
| CN206196511U (en) | A kind of greenhouse rolling blind device | |
| CN219431214U (en) | Balcony sunshade device of green building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20150407 |
|
| EXPY | Termination of patent right or utility model |