CN204498942U - A high temperature wind proof energy mix connection greenhouse - Google Patents
A high temperature wind proof energy mix connection greenhouse Download PDFInfo
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- CN204498942U CN204498942U CN201520177135.5U CN201520177135U CN204498942U CN 204498942 U CN204498942 U CN 204498942U CN 201520177135 U CN201520177135 U CN 201520177135U CN 204498942 U CN204498942 U CN 204498942U
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- support body
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- high temperature
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- 238000009413 insulation Methods 0.000 claims abstract description 23
- 238000005057 refrigeration Methods 0.000 claims abstract description 22
- 239000010410 layer Substances 0.000 claims abstract description 17
- 239000011241 protective layer Substances 0.000 claims abstract description 16
- 238000005273 aeration Methods 0.000 claims abstract description 13
- 230000008635 plant growth Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000010485 coping Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- 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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- 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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping
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- Photovoltaic Devices (AREA)
Abstract
The utility model relates to a high temperature wind proof energy mix connection greenhouse, and comprise vertical support body, horizontal support body, the upside of horizontal support body is provided with top cover, and the day side of top cover is provided with solar cell, and the outside in the space that vertical support body surrounds is provided with windproof protective layer; Also comprise aeration insulating system, and the refrigeration unit connected successively, cool-storing box, cool-heat-exchanger, blower fan, and described refrigeration unit, cool-storing box, cool-heat-exchanger, blower fan are all connected with controller.Superior effect of the present utility model is: at a connection greenhouse arranged outside windproof protective layer, greenhouse is in a stable external environment, arranges solar cell, make full use of clean energy resource in the day side of top cover; And adopt thermal insulation quilt to form the stable air heat insulating layer of one deck in the inside in a connection greenhouse, reduce greenhouse thermal runaway; Adopt refrigeration unit, cool-storing box, cool-heat-exchanger, blower fan to form a humidity control system, the temperature in greenhouse is regulated, meets the demand of plant growth.
Description
Technical field
The utility model relates to greenhouse heat-insulating technical field, is specifically related to a kind of high temperature wind proof energy mix connection greenhouse.
Background technology
China is a large agricultural country, and in recent years, the plantation of greenhouse vegetable develops rapidly, and various agricultural greenhouse scale constantly expands, and the area Yi Zhan world of agricultural greenhouse is the first.But the application of traditional greenhouse by solar heat and plastic tunnel also exists great deficiency, such as, most area in the winter time, the temperature in daytime greenhouse by solar heat is very high, and often exceed plant growth temperature required, the heat had more often is wasted; And the low temperature at night is often freezing or affect plant growth, in order to meet the requirement of plant growth at night, traditional energy such as hot-blast stove etc. must be adopted to be greenhouse heating, because vegetable melon and fruit booth mostly props up in the wild, when there being need for electricity, need the pull the wire of long distance to transmit electricity, this method not only adds production cost, also make troubles to use, propose new requirement to industry.
While greatly developing industrialized agriculture, there is many contradiction and problems.Because industrialized agriculture is started late, professional and technical personnel is relatively deficient, and geographical position, weather conditions are comparatively special; In the area that the long-term four seasons blow, winter weather cold, but the structure of existing energy saving sunlight greenhouse is just indiscriminately imitated in the construction of the energy saving sunlight greenhouse of this area, wind resistance is poor, insulating power is inadequate, and economic benefit is not high, significantly reduces the enthusiasm of local farmers development industrialized agriculture.
Publication number is that the Chinese patent of CN201758619U discloses a kind of wind-resistant energy-saving heliogreenhouse, comprise the rear roofing be arranged on rear roof boarding, pillar, support frame, bow member, thermal insulation quilt, skylight, film is rolled up in the skylight coordinated with skylight, film rolling rob and the Cover roller be arranged on bow member, support frame by shore supports on buttress, ventilation unit is arranged on the top of bow member, the rear wall in greenhouse is by interior wall, intermediate layer and exterior wall are formed, interior wall is made up of the plain brick wall through pointing with cement mortar, intermediate layer is made up of insulation material, exterior wall is made up of plain brick wall of plastering, the rear roofing be arranged on rear roof boarding is made up of straw and reed plate, and its inside and outside surface arranges inside and outside waterproof reinforced layer, outside waterproof reinforced layer outer surface adheres to cob layer, cob layer is covered with stratiform asphalt felt waterproof, greenhouse surrounding lays the terrace be made up of concrete, the skylight arranged is arranged volume film for bow member, volume film be fixed on the connecting plate of greenhouse ridge by jump ring, its another side is fixed on film rolling rob by clip.The temperature of this greenhouse by solar heat is wayward, and energy consumption is large, poor practicability.
Publication number is that the Chinese patent of CN203985250U discloses a kind of wind resisting type greenhouse, comprise top cover, left side wall and right-side wall, the two ends, left and right of described top cover are oppositely arranged with left side wall, right side coping respectively, and the bottom of left side wall, right-side wall is connected with ground, the left end of described top cover is fixedly connected with left side coping, movable port is provided with between the right-hand member of top cover and right-side wall top, removable cover is provided with in this movable port, this removable cover coordinates with the top cover slide offered in top cover, the right-hand member of removable cover coordinates with the limit base that right-side wall inwall is arranged is spacing, the bottom of removable cover is connected with the electromotor that left side wall is arranged by the driving rod of a L-type, and this electromotor is connected with power circuit by controller, the manufactured materials of described top cover, removable cover, left side wall, right-side wall is clear glass, and the height of the axis of top cover, removable cover, movable port is consistent, described controller comprises metal shell, input power cord, out-put supply line, guide plate and plate windward, and plate is positioned at the outside of left side wall windward, the two ends of described guide plate are connected with the left and right sidewall of metal shell, the middle chute that guide plate is offered parallels with the top chute that the roof of metal shell is offered, one end of input power cord is connected with motor circuit, the other end passes top chute successively, be connected with enter conductive film after middle chute, input power cord is positioned at top chute, position between middle chute is fixedly connected with plate windward by guide post, the front of enter conductive film is relative with about the front exporting conducting strip, export the back side of conducting strip to be connected with a terminal circuit of out-put supply line, the other end of out-put supply line is connected with power circuit through the Zuo Bihou of metal shell.This wind resisting type greenhouse structure is complicated, the manufacturing cycle is long, and energy consumption is large, is unfavorable for that lean is planted.
Utility model content
In order to overcome problems of the prior art, the purpose of this utility model is to provide a kind of high temperature wind proof energy mix connection greenhouse.
The utility model is achieved through the following technical solutions:
A high temperature wind proof energy mix connection greenhouse, comprise vertical support body, described vertical support body is set to four, described vertical support body head and the tail connect and are provided with horizontal support body above the space surrounded, the upside of horizontal support body is provided with top cover, the day side of top cover is provided with solar cell, and the outside in the space that vertical support body surrounds is provided with windproof protective layer; The two ends of horizontal support body are provided with turning cylinder, and the top of vertical support body is provided with turning cylinder; Also comprise aeration insulating system, described aeration insulating system comprises compressor, deduster, dehydrater, drier, constant voltage and deflation control device, thermal insulation quilt, and described compressor, deduster, dehydrater, drier, constant voltage and deflation control device, thermal insulation quilt are connected successively by pipeline; Described thermal insulation quilt is arranged in horizontal support body and vertical support body; Also comprise the refrigeration unit, cool-storing box, cool-heat-exchanger, the blower fan that connect successively, and described refrigeration unit, cool-storing box, cool-heat-exchanger, blower fan are all connected with controller, described refrigeration unit is connected with solar cell.
Described technical scheme is preferably, and described windproof protective layer one end is connected with top cover, and the other end is arranged at ground and extends on the downside of ground.
Described technical scheme is preferably, and described solar cell adopts solar panel.The area of described solar panel is determined according to the actual requirements, is advisable with the result of use not affecting greenhouse.
Described technical scheme is preferably, and described solar cell adopts wrap-up solar cell.
Described technical scheme is preferably, and the outside of described vertical support body is provided with heat-insulating bridge-cut-off layer.
Described technical scheme is preferably, and the junction of described horizontal support body and vertical support body is provided with heat-insulation layer.Described heat-insulation layer adopts high thermo-sensitive material to make, to prevent inside greenhouse heat loss.
Described technical scheme is preferably, and described greenhouse is also provided with wind generator system, and described wind generator system is connected with refrigeration unit, controller respectively.
Described technical scheme is preferably, and described constant voltage and deflation control device are provided with gas bleeder valve.Described gas bleeder valve can control constant voltage and deflation control device to the constant gas of air chamber input pressure.
Described technical scheme is preferably, and described turning cylinder is provided with pull rope.
Described technical scheme is preferably, and described thermal insulation quilt is aeration insulating quilt.
Described technical scheme is preferably, and described top cover is triangular shape.
Described technical scheme is preferably, and described controller adopts ATmega64 processor.
Compared with prior art, superior effect of the present utility model is: at a connection greenhouse arranged outside windproof protective layer, greenhouse is in a stable external environment, arranges solar cell, make full use of clean energy resource in the day side of top cover; And adopt thermal insulation quilt to form the stable air heat insulating layer of one deck in the inside in a connection greenhouse, reduce greenhouse thermal runaway; Solar cell is adopted to be that greenhouse powers, energy-saving and environmental protecting; Adopt refrigeration unit, cool-storing box, cool-heat-exchanger, blower fan to form a humidity control system, at any time the temperature in greenhouse is regulated, meet the demand of plant growth.
Accompanying drawing explanation
Fig. 1 is described in the utility model greenhouse structure schematic diagram;
Fig. 2 is the system architecture of aeration insulating described in Fig. 1 schematic diagram.
Description of reference numerals is as follows:
The vertical support body of 11-, 111-turning cylinder, 12-horizontal support body, 13-top cover, 14-aeration insulating system, 141-compressor, 142-deduster, 143-dehydrater, 144-drier, 145-constant voltage and deflation control device, 146-thermal insulation quilt, 15-solar cell, 16-refrigeration unit, 17-cool-storing box, 18-cool-heat-exchanger, 19-blower fan, 20-controller, 21-wind generator system, the windproof protective layer of 22-, 23-ground.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in accompanying drawing 1,2, a high temperature wind proof energy mix connection greenhouse described in the utility model, comprise vertical support body 11, described vertical support body 11 is set to four, described vertical support body 11 head and the tail connect and are provided with horizontal support body 12 above the space surrounded, the upside of horizontal support body 12 is provided with top cover 13, and the day side of top cover 13 is provided with solar cell 15, and the outside in the space that vertical support body 11 surrounds is provided with windproof protective layer 22; The two ends of horizontal support body 12 are provided with turning cylinder 111, and the top of vertical support body 11 is provided with turning cylinder 111; Also comprise aeration insulating system 14, described aeration insulating system 14 comprises compressor 141, deduster 142, dehydrater 143, drier 144, constant voltage and deflation control device 145, thermal insulation quilt 146, and described compressor 141, deduster 142, dehydrater 143, drier 144, constant voltage and deflation control device 145, thermal insulation quilt 146 are connected successively by pipeline; Described thermal insulation quilt 146 is arranged in horizontal support body 12 and vertical support body 11; Also comprise the refrigeration unit 16, cool-storing box 17, cool-heat-exchanger 18, the blower fan 19 that connect successively, and described refrigeration unit 16, cool-storing box 17, cool-heat-exchanger 18, blower fan 19 are all connected with controller 20, described refrigeration unit 16 is connected with solar cell 15.
Windproof protective layer 22 one end described in the utility model is connected with top cover 13, and the other end is arranged at ground 23 and extends on the downside of ground 23.The medial surface of described windproof protective layer 22 arranges load-bearing skeleton according to actual conditions, and described windproof protective layer 22, for the purpose of wind resistance, makes a connection greenhouse be in a stable external environment.Described windproof protective layer 22 is according to the angle of the windproof protective layer 22 of the air rate adjustment of location with ground 23.Described windproof protective layer 22 forms wind resistance inclined-plane with the vertical support body 11 in greenhouse, strong wind is blown over from windproof protective layer 22, reduce the stressed of described greenhouse structure, according to hydrodynamics and aerodynamic principle, flow-disturbing need be carried out with the object that structure is geometry acute angle in the top in described greenhouse, reduce the atmosphere negative pressure that when strong wind is blown over, a distich greenhouse is formed, maintain described the stability of greenhouse under strong wind atmosphere; Described in the utility model greenhouse structure is particularly suitable for the strong wind atmosphere of more than ten secondarys.
Described solar cell 15 adopts solar panel.The area of described solar panel is determined according to the actual requirements, is advisable with the result of use not affecting greenhouse.Described solar cell 15 adopts wrap-up solar cell, is prior art.
The outside of described vertical support body 11 is provided with heat-insulating bridge-cut-off layer (not shown).Described horizontal support body 12 is provided with heat-insulation layer (not shown) with the junction of vertical support body 11.Described heat-insulation layer adopts high thermo-sensitive material to make, to prevent inside greenhouse heat loss.Described greenhouse is also provided with wind generator system 21, and described wind generator system 21 is connected with refrigeration unit 16, controller 20 respectively.Described constant voltage and deflation control device 145 are provided with gas bleeder valve (not shown).Described gas bleeder valve can control constant voltage and deflation control device 145 to the constant gas of air chamber input pressure.Described top cover 13 is in triangular shape.Described controller 20 adopts ATmega64 processor.Described turning cylinder 111 is provided with pull rope (not shown), and described pull rope rotates for driving turning cylinder; Described thermal insulation quilt 146 adopts aeration insulating quilt.Described solar cell 15 is powered for refrigeration unit 16, and described refrigeration unit 16 provides cold water for cool-storing box 17; Described controller 20 controls refrigeration unit 16 regulates inside greenhouse temperature by cool-storing box 17, cool-heat-exchanger 18 and blower fan 19.
When warm indoor temperature is that described controller 20 controls cool-storing box 17 and pumped in cool-heat-exchanger 18 by the cold water of its inside, and is blown in greenhouse by cold wind by blower fan 19 higher than the growth temperature of plant.By joining an inside greenhouse set temperature sensor (not shown), described greenhouse sensor is being connected with controller 20; When the temperature of inside greenhouse is identical with the growth temperature of plant, described refrigeration unit 16, cool-storing box 17, cool-heat-exchanger 18, blower fan 19 quit work.
When sunshine cannot meet plant illumination intensity, inflated for thermal insulation quilt 146 by the compressor 141 of aeration insulating system 14.In thermal insulation quilt 146 after insufflation gas, form the stable air heat insulating layer of one deck in the inside in a connection greenhouse, reduce greenhouse thermal runaway, be conducive to the growth of crops in greenhouse.
In addition, by the utility model connection Greenhouse Construction at island or neritic zone, utilize seawater to lower the temperature to greenhouse, it is inner that seawater to be pumped into cool-storing box 17 for being generated electricity by solar cell 15 by concrete mode, and then be greenhouse cooling by cool-heat-exchanger 18, blower fan 19, energy-saving and environmental protecting.Described compressor 141 is as publication number compressor disclosed in CN101629575A, deduster 142 is as publication number deduster disclosed in CN1651158A, dehydrater 143 is as publication number compressed gas condensation dehydrater disclosed in CN201069239Y, and drier 144 is as publication number drier disclosed in CN1778425A.Equally, described refrigeration unit 16, cool-storing box 17, cool-heat-exchanger 18 are prior art, and operating personnel select voluntarily according to actual conditions.
The utility model is not limited to above-mentioned embodiment, and when not deviating from flesh and blood of the present utility model, any distortion that it may occur to persons skilled in the art that, improvement, replacement all fall into scope of the present utility model.
Claims (9)
1. a high temperature wind proof energy mix connection greenhouse, comprise vertical support body, described vertical support body is set to four, described vertical support body head and the tail connect and are provided with horizontal support body above the space surrounded, the upside of horizontal support body is provided with top cover, it is characterized in that, the day side of top cover is provided with solar cell, and the outside in the space that vertical support body surrounds is provided with windproof protective layer; The two ends of horizontal support body are provided with turning cylinder, and the top of vertical support body is provided with turning cylinder; Also comprise aeration insulating system, described aeration insulating system comprises compressor, deduster, dehydrater, drier, constant voltage and deflation control device, thermal insulation quilt, and described compressor, deduster, dehydrater, drier, constant voltage and deflation control device, thermal insulation quilt are connected successively by pipeline; Described thermal insulation quilt is arranged in horizontal support body and vertical support body; Also comprise the refrigeration unit, cool-storing box, cool-heat-exchanger, the blower fan that connect successively, and described refrigeration unit, cool-storing box, cool-heat-exchanger, blower fan are all connected with controller, described refrigeration unit is connected with solar cell.
2. a high temperature wind proof energy mix connection greenhouse according to claim 1, it is characterized in that, described windproof protective layer one end is connected with top cover, and the other end is arranged at ground and extends on the downside of ground.
3. a high temperature wind proof energy mix connection greenhouse according to claim 1, it is characterized in that, described solar cell adopts solar panel.
4. a high temperature wind proof energy mix connection greenhouse according to claim 1, it is characterized in that, the outside of described vertical support body is provided with heat-insulating bridge-cut-off layer.
5. a high temperature wind proof energy mix connection greenhouse according to claim 1, it is characterized in that, the junction of described horizontal support body and vertical support body is provided with heat-insulation layer.
6. a high temperature wind proof energy mix connection greenhouse according to claim 1, it is characterized in that, described greenhouse is also provided with wind generator system, and described wind generator system is connected with refrigeration unit, controller respectively.
7. a high temperature wind proof energy mix connection greenhouse according to claim 1, it is characterized in that, described constant voltage and deflation control device are provided with gas bleeder valve.
8. a high temperature wind proof energy mix connection greenhouse according to claim 1, it is characterized in that, described top cover is triangular shape.
9. a high temperature wind proof energy mix connection greenhouse according to claim 1, it is characterized in that, described thermal insulation quilt is aeration insulating quilt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520177135.5U CN204498942U (en) | 2015-03-26 | 2015-03-26 | A high temperature wind proof energy mix connection greenhouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520177135.5U CN204498942U (en) | 2015-03-26 | 2015-03-26 | A high temperature wind proof energy mix connection greenhouse |
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| Publication Number | Publication Date |
|---|---|
| CN204498942U true CN204498942U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520177135.5U Active CN204498942U (en) | 2015-03-26 | 2015-03-26 | A high temperature wind proof energy mix connection greenhouse |
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| Country | Link |
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| CN (1) | CN204498942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320948A (en) * | 2019-07-09 | 2019-10-11 | 安徽科杰粮保仓储设备有限公司 | A kind of greenhouse device and intelligent constant-temperaturecontrol control and method |
-
2015
- 2015-03-26 CN CN201520177135.5U patent/CN204498942U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320948A (en) * | 2019-07-09 | 2019-10-11 | 安徽科杰粮保仓储设备有限公司 | A kind of greenhouse device and intelligent constant-temperaturecontrol control and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180930 Address after: 100085 0112-164 1, room 26, information road, Haidian District, Beijing. Patentee after: Beijing sunshine technology research and Development Co., Ltd. Address before: 100102 room 106, 605 floor, E District, the Atlantic new town, Wangjing, Chaoyang District, Beijing. Patentee before: Lv Hao |