CN101091448A - Irrigation and drainage pipes - Google Patents
Irrigation and drainage pipes Download PDFInfo
- Publication number
- CN101091448A CN101091448A CNA2006100623012A CN200610062301A CN101091448A CN 101091448 A CN101091448 A CN 101091448A CN A2006100623012 A CNA2006100623012 A CN A2006100623012A CN 200610062301 A CN200610062301 A CN 200610062301A CN 101091448 A CN101091448 A CN 101091448A
- Authority
- CN
- China
- Prior art keywords
- irrigation
- drainage
- outer tube
- wall
- inwall
- 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.)
- Granted
Links
- 230000002262 irrigation Effects 0.000 title claims abstract description 90
- 238000003973 irrigation Methods 0.000 title claims abstract description 90
- 210000000003 hoof Anatomy 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000004576 sand Substances 0.000 description 13
- 239000002689 soil Substances 0.000 description 12
- 230000000903 blocking effect Effects 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012279 drainage procedure Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 208000021267 infertility disease Diseases 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- 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
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/06—Watering arrangements making use of perforated pipe-lines located in the soil
Abstract
The present invention discloses a drainage and irrigation pipe. It includes external pipe and several external wall drainage and irrigation holes which are cut on the external pipe wall; in the pipe interior of said external pipe also a main water channel is set; on the wall of said main water channel, in the position higher than external wall drainage and irrigation holes several internal wall drainage and irrigation holes are set. Compared with existent technique, in the process of use of said drainage and irrigation pipe lots of sand-mud granules can not be fed into the drainage and irrigation interior.
Description
Technical field
The present invention relates to a kind of irrigation and drainage pipes device that is used for drip irrigation system, relate in particular to a kind of irrigation and drainage pipes that all is provided with the irrigation and drainage hole in the varying level position.
Background technology
The drainage pattern of existing irrigation and drainage pipes all is to pass the hydrophobic aperture that is distributed in tube wall by moisture content, or the hole of filter cloth, enters in the pipeline that anhydrates, and discharges in the pipeline outside through the main passage that anhydrates again.Stop up the drainage hole easily, and when draining, the draining effect of the main passage that anhydrates is extreme difference also; And when moisture content passes hydrophobic aperture or filter cloth, can drive mostly and with sand mud composition, accumulate over a long period down, just can stop up passing the hydrophobic aperture of tube wall or the hole of filter cloth, can not produce drainage again, but as will be in the hydrophobic aperture of tube wall enlarged-diameter, the body compression strength that will cause outlet pipe reduces, cause body to break, and as the long-pending sand mud of big plastochondria, via the hydrophobic aperture after enlarging, when entering in the pipeline, just can gather in the bottom of pipeline, reduce the drainage area of pipeline, cause blocking pipe even.And when this irrigation and drainage pipes was used in the slope, the water outlet position of existing drain water piping had plant to take root, and after plant grows up, just can stop up the delivery port of drain water piping.This kind takes root because of plant, cause the generation of clogging, main also is because of the water outlet position at drain water piping, a large amount of sand mud are arranged, tied the bottom of gathering in the pipeline by water alluviation, if alluviation to the water outlet position near pipeline, just can become the hotbed of plant germination growth, when plant branch is leafiness grow up after, delivery port that just can blocking pipe; Also may be because the drain pipe in using now, be on the tube wall of circumference, offer weep hole fifty-fifty, so make the seed of plant, even if in the water outlet position that sand mud seldom gathers, also can be with the young root of growth, extend in the space that is opened in drain pipe bottom weep hole, and in the weep hole near the bottom, take root, after the luxuriant growth of branches and leaves, delivery port that just can blocking pipe.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and provide a kind of irrigation and drainage pipes to be provided with inside and outside wall irrigation and drainage hole, can not cause and allow silt blocking pipe delivery port irrigation and drainage pipes thereby reach drip irrigation by the pressure differential between the fluid in the varying level position.
Technical scheme
For achieving the above object, the present invention has adopted following technical proposals:
This irrigation and drainage pipes comprises outer tube and the some outer wall irrigation and drainage hole that is opened on the outer tube wall, also is provided with a main channel outside in the pipeline, and the position that is higher than outer wall irrigation and drainage hole on the wall of main channel is provided with some inwall irrigation and drainage hole.
Described main channel is a tank, and this tank is by bottom and top auricle and outer tube wall Joint, and inwall irrigation and drainage hole is arranged on the auricle.
Described outer tube section is circle, and perhaps its outer tube section to the corresponding section, tank cross section that forms main channel is similar.
Described tank cross section is the shape of a hoof or U-shaped or V-arrangement; Described tank height is about 1/2 body height.
Described main channel is a pipe in, and this inwall irrigation and drainage hole is arranged on the inwall of inner tubal wall both sides; Described inwall irrigation and drainage hole is arranged at inner tube wall if pipe is highly located in 1/2; Described tube-surface is concavo-convex alternate interior tube-surface and outer tube-surface.
Perhaps described outer tube comprises discontinuous plurality of sections, and every section diminishes at two ends places and to be connected with interior pipe.
Place, described outer tube top is provided with some tiny little holes of oozing.
Described inwall irrigation and drainage hole can be circle, ellipse or square.
Can also between interior pipe and outer tube, also be provided with one or the secondary water channel of one or more.
The inwall of the secondary water channel of described formation is corresponding some parting beads between interior pipe and outer tube.
Beneficial effect
By technique scheme, thereby this invention has following beneficial effect:
1. because the gateway, external irrigation and drainage hole of irrigation and drainage pipeline, be design near in the bottom, after the earth that surrounds pipeline is full of moisture content, just can find that outside the pipeline horizontal level of moisture content is higher than in pipeline interior in the irrigation and drainage hole near the central horizontal position, therefore just produce head pressure by two uneven positions of difference, and this head pressure, just can be the outer moisture content of pipeline, be advanced in the external irrigation and drainage hole of duct bottom by head pressure and penetration, irrigation and drainage hole through inherent is pushed in the main channel, more again via main channel, and current drainage goes out outside the pipeline, thus the existing picture that the utmost point is not easy to stop up.
2 because in drainage procedure, just utilizes the self-filtration of sand mud, and head pressure and penetration infilter moisture content in the irrigation and drainage hole of duct bottom, so during the draining running, also do not have the generation of bath pressure.Therefore can not drive a large amount of sand mud particles naturally, enter in the pipe of irrigation and drainage duct, cause and stop up situation.
3 and this filling pipeline be regularly to do the maintenance cleaning with special water under high pressure burnisher, the function of continuity draining or irrigation and work term.
Description of drawings
Fig. 1 is the irrigation and drainage pipes first embodiment cutaway view of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the second embodiment of the invention cutaway view.
Fig. 4 is the A-A cutaway view of Fig. 3.
Fig. 5 is the cutaway view of third embodiment of the invention.
Fig. 6 is the A-A cutaway view of Fig. 5.
Fig. 7 is the B-B cutaway view of Fig. 5.
Fig. 8 is the cutaway view of fourth embodiment of the invention.
Fig. 9 is the A-A cutaway view of Fig. 8.
Figure 10 is the B-B cutaway view of Fig. 8.
Figure 11 is the cutaway view of fourth embodiment of the invention.
Figure 12 is the A-A cutaway view of Figure 11.
Figure 13 is the sixth embodiment of the invention cutaway view.
Figure 14 is the seventh embodiment of the invention cutaway view.
Embodiment
Below in conjunction with accompanying drawing the utility model is made and to further specify.
As shown in Figure 1 and Figure 2, this irrigation and drainage pipes first embodiment, comprise circular outer tube 1 and the some outer wall irrigation and drainage hole 2 that is opened on the outer tube bottom, also be provided with a main channel outside in the pipeline, this main channel is a tank 4, be higher than place, irrigation and drainage hole site, bottom and be provided with some inwall irrigation and drainage hole 3 on the wall of tank, this tank is by the auricle 5 and outer tube wall Joint at bottom and top, and inwall irrigation and drainage hole 3 is arranged on the auricle.Described outer tube section is circle, and described tank height is about 1/2 body height, and the tank cross section is the shape of a hoof.
Compared with prior art, in the time of use,, after mixing infertile field material system, become the irrigation moisture content that has mixed the material that fertilizes the soil, just, be inducted into the irrigation pipe that is placed in the farmland according to required deal of crops and the irrigation order of every day at first with the water source.When irrigation moisture content is introduced into horseshoe-shaped main channel, the horizontal level of irrigating moisture content also can be increased in pipeline, inherent irrigation and drainage hole near the central horizontal position, when the horizontal level of moisture content in the pipeline is higher than outside the pipeline, just produce head pressure by two uneven positions of difference, and this head pressure, just can be with the irrigation moisture content in the pipeline, be advanced in pipeline interior in the irrigation and drainage hole near central authorities, irrigate moisture content and utilize osmotic pressure again, by horseshoe-shaped main channel, through inherent irrigation and drainage hole, drain in the earth in the external irrigation and drainage hole of offering near duct bottom, directly allow earth absorb needed moisture content and nutrient, needn't be irrigated moisture content by solar evaporation and weathering, reach water saving and regularly irrigate target with quantitative environmental protection.And this irrigating filling that is placed in the farmland is managed, and also has another kind of purposes, is when heavy rainfall, will make the farmland do not had by water logging, at this time, just the irrigation pipe change can be drainage system, helps a large amount of ponding in the discharge farmland, a thing dual-purpose.
Because irrigation and drainage pipes is embedded in the soil, when the moisture content in sand mud, through after the high low head effect by hydraulic pressure, moisture content is just by the outer high-level position of deferent, via the external irrigation and drainage hole that is positioned at the bottom, infiltrate through during horseshoe-shaped master anhydrates, and in the process of infiltration, moisture content is through being enclosed in pipeline outer soil and sand mud, can infiltrate through in the external irrigation and drainage hole, situation is just as through the self-filtration of sand mud, can be with than larger volume or granular soil sand mud, and the oneself is outside the external irrigation and drainage hole of filter in the bottom.And above osmosis also makes being enclosed in the outer soil sand mud of pipeline, can directly not driven by moisture content, and rushes in the external irrigation and drainage hole, causes line clogging.And in experiment, find, when moisture content infiltrates through the duct in irrigation and drainage hole, can find that moisture content has more obviously separating of two-part, promptly be that moisture content is as being mingled with the comparatively many parts of soil composition, be can rest in the duct in irrigation and drainage hole the downstream partly, and be mingled with the comparatively a spot of moisture content of soil composition, because being subjected to the quality of volume influences, just can at first enter in the main penstock, that is all are through inherent irrigation and drainage holes, and the moisture content during the master who flows into horseshoe-shape again anhydrates only can be mingled with extremely immature soil one's share of expenses for a joint undertaking, do not have subsidiary large-scale soil or sand mud and come blocking pipe, and can make draining smooth and easy.When soil outside pipeline and sandstone, after the self-filtration through sand mud, just have only imperceptible soil composition, just can be mingled in the moisture content, anhydrate and bring into together to become owner of thereupon.And the master of irrigation and drainage pipeline anhydrates, be that design class is like being horseshoe-shape, this is known band water area maximum and the best amount of anhydrating, with and one of the high shape of structural strength, so when these are mixing the moisture content of trickle soil, driven and entered shape of a hoof master when anhydrating, also as easy as rolling off a log by horseshoe-shaped design shape, powerful current that driven and wash away outside the pipeline, so the irrigation and drainage pipeline also has the self-cleaning function.
In addition, this irrigation and drainage pipeline is regularly to do the maintenance cleaning with special water under high pressure burnisher, strengthens the task performance and the continuity work term of pipeline.
Fig. 3, Fig. 4 are second embodiment of the invention, and its difference to first embodiment is: described tank 4a cross section is similar to the outer tube 1a cross section of corresponding section, also is the shape of a hoof.
Fig. 5, Fig. 6, Fig. 7 are third embodiment of the invention, and described main channel is pipe 4b in, and these inwall irrigation and drainage hole 3b is arranged on the inwall of inner tubal wall both sides; Described inwall irrigation and drainage hole is arranged at inner tube wall if pipe is highly located in 1/2; Described tube-surface is concavo-convex alternate interior tube-surface and outer tube-surface, has outer wall irrigation and drainage hole 2b to be arranged at the bottom equally.
Fig. 8, Fig. 9, Figure 10 are fourth embodiment of the invention, described outer tube 1c comprises discontinuous plurality of sections, and every section diminishes at two ends places and to be connected with the interior pipe 4c that forms main channel, equally, outer tube is provided with outer wall irrigation and drainage hole 2c, is provided with inwall irrigation and drainage hole 3c on inner pipe.
Figure 11, Figure 12 are fifth embodiment of the invention, are outside they are different with first embodiment, and described inwall irrigation and drainage hole 3d is square.
Figure 13 is a sixth embodiment of the invention, and the difference of itself and first embodiment is that described outer tube 1e goes up the top relative with outer wall irrigation and drainage hole and is provided with tiny little hole 7 of oozing.
Figure 14 is a seventh embodiment of the invention, also is provided with two secondary water channels between interior pipe and outer tube, and the inwall of the secondary water channel of described formation is corresponding some parting beads 8 between interior pipe and outer tube.Be respectively the structure of two-layer vacuum when inside after, be divided into main channel partly and the irrigation and drainage hole partly, during the material that is cooled when the needs inside configuration circulation of one deck vacuum therein, just can with at the moving material of another laminar flow, in the scope of irrigation and drainage hole, carry out heat exchange simultaneously.For example moisture content, machine oil and gas or the like.
By the foregoing description, this invention removes and can also be applied in retaining wall and meadow face batter drainage in the irrigation field; The perhaps road surface drainage of airfield runway, highway and flyover; Can be the draining of place, meadow also, as the football field, the tennis court; Also can work aspect the seepage supervision at the interior of building; Grouting capstan as level; Also can be placed on landfill and fill out extra large landfill; And as the draining of earth and rockfill dam main body; Be installed in the concrete dam bottom; The high-effect water-saving seeping irrigation of farmland system; Or with the usefulness of active carbon as filtration, active carbon can place body also can place in the body outward; Aspects such as box irrigation system.
Claims (10)
1. an irrigation and drainage pipes comprises outer tube and the some outer wall irrigation and drainage hole that is opened on the outer tube wall, and it is characterized in that: also be provided with a main channel outside in the pipeline, the position that is higher than outer wall irrigation and drainage hole on the wall of main channel is provided with some inwall irrigation and drainage hole.
2. irrigation and drainage pipes as claimed in claim 1 is characterized in that: described main channel is a tank, and this tank is by bottom and top auricle and outer tube wall Joint, and inwall irrigation and drainage hole is arranged on the auricle.
3. irrigation and drainage pipes as claimed in claim 2 is characterized in that: described tank cross section is the shape of a hoof or U-shaped or V-arrangement; Described outer tube section is circle, and perhaps its outer tube section to the corresponding section, tank cross section that forms main channel is similar, and described tank height is about 1/2 body height.
4. irrigation and drainage pipes as claimed in claim 1 is characterized in that: described main channel is a pipe in, and this inwall irrigation and drainage hole is arranged on the inwall of inner tubal wall both sides.
5. irrigation and drainage pipes as claimed in claim 4 is characterized in that: described inwall irrigation and drainage hole is arranged at inner tube wall if pipe is highly located in 1/2; Described tube-surface is concavo-convex alternate interior tube-surface and outer tube-surface.
6. as claim 4 or 5 described irrigation and drainage pipes, it is characterized in that: described outer tube comprises discontinuous plurality of sections, and every section diminishes at two ends places and to be connected with interior pipe.
7. as claim 2 or 4 described irrigation and drainage pipes, it is characterized in that: place, described outer tube top is provided with some tiny little holes of oozing.
8. as claim 1 or 2 or 4 described irrigation and drainage pipes, it is characterized in that: described inwall irrigation and drainage hole can be circle, ellipse or square.
9. as claim 1 or 2 or 4 described irrigation and drainage pipes, it is characterized in that: between interior pipe and outer tube, also be provided with one or the secondary water channel of one or more.
10. irrigation and drainage pipes as claimed in claim 9 is characterized in that: the inwall of the secondary water channel of described formation is at corresponding some parting beads between interior pipe and the outer tube.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610062301A CN101091448B (en) | 2006-08-24 | 2006-08-24 | Irrigation and drainage pipes |
| JP2009524868A JP2010501166A (en) | 2006-08-24 | 2007-03-16 | New drainage irrigation piping system |
| PCT/CN2007/000854 WO2008025195A1 (en) | 2006-08-24 | 2007-03-16 | A novel tube device for irrigation and drainage |
| HK08107069.3A HK1111857A1 (en) | 2006-08-24 | 2008-06-25 | Drain pipe |
| JP2010000813U JP3163199U (en) | 2006-08-24 | 2010-02-10 | New drainage irrigation piping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610062301A CN101091448B (en) | 2006-08-24 | 2006-08-24 | Irrigation and drainage pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101091448A true CN101091448A (en) | 2007-12-26 |
| CN101091448B CN101091448B (en) | 2010-05-12 |
Family
ID=38990033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610062301A Expired - Fee Related CN101091448B (en) | 2006-08-24 | 2006-08-24 | Irrigation and drainage pipes |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JP2010501166A (en) |
| CN (1) | CN101091448B (en) |
| HK (1) | HK1111857A1 (en) |
| WO (1) | WO2008025195A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008138218A1 (en) * | 2007-05-10 | 2008-11-20 | Yiutak Leung | Water draining method and the draining pipe therefore |
| WO2009033354A1 (en) * | 2007-09-05 | 2009-03-19 | Chung Yau Cheung | Penetration and convection pipe device for drainage and irrigation |
| CN102493411A (en) * | 2011-12-19 | 2012-06-13 | 梁忠成 | Drainage and irrigation pipe |
| CN103329734A (en) * | 2013-06-25 | 2013-10-02 | 南京师范大学 | Device for inoculating wound roots of plants and application method thereof |
| CN101660311B (en) * | 2008-08-26 | 2013-12-04 | 晖耀光电科技(厦门)有限公司 | Novel water drainage and collection pipe |
| WO2014198240A1 (en) * | 2013-06-13 | 2014-12-18 | Leung Yan Kiu | Multi-filtration drainage and irrigation water pipe, omni-directional planting pot and filtration drainage and irrigation pipe bundle |
| CN104663409A (en) * | 2015-02-02 | 2015-06-03 | 和县秀山美地农业科技有限公司 | Greenhouse vegetable cultivation device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010257913B2 (en) * | 2009-06-11 | 2014-05-22 | CHAN, Tsz Lut | Environment-friendly automatic percolation irrigation planting device with hermetic liquid |
| CN103041938B (en) * | 2013-01-14 | 2015-12-02 | 西北农林科技大学 | A kind ofly prevent the layering of potted plant soil compaction to water water dropper |
| JP6260306B2 (en) * | 2014-01-30 | 2018-01-17 | フクビ化学工業株式会社 | Rainwater infiltration pipe and rainwater infiltration system using the same |
| CN106192972B (en) * | 2016-06-24 | 2018-02-02 | 白可 | Equipment and its manufacture method are locally afforested in desert |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2270356Y (en) * | 1996-07-31 | 1997-12-17 | 中国科学院上海植物生理研究所 | Anti-blocking drip irrigation belt |
| CN2254921Y (en) * | 1996-09-23 | 1997-05-28 | 戚志强 | Flexiable mould for square buildings |
| CN2281068Y (en) * | 1997-03-05 | 1998-05-13 | 河南鹏源塑料制品有限公司 | Microporous pipes for permeating and dropping irrigation |
| IL122777A (en) * | 1997-12-28 | 2003-12-10 | Amir Cohen | Valve controlled drip irrigation lines |
| CN2357491Y (en) * | 1999-03-25 | 2000-01-12 | 武树贵 | Direct-burying double-layer infiltrating irrigation pipe for farmland |
| CN2438324Y (en) * | 2000-08-19 | 2001-07-11 | 中国农业科学院农田灌溉研究所 | Double-wall pipe drip irrigation hose |
| CN201011797Y (en) * | 2006-09-08 | 2008-01-30 | 梁耀德 | Hollow irrigation and drainage pipe |
| CN200987308Y (en) * | 2006-09-08 | 2007-12-12 | 梁耀德 | Draining and irrigating hose with horseshoe main water path |
-
2006
- 2006-08-24 CN CN200610062301A patent/CN101091448B/en not_active Expired - Fee Related
-
2007
- 2007-03-16 WO PCT/CN2007/000854 patent/WO2008025195A1/en active Application Filing
- 2007-03-16 JP JP2009524868A patent/JP2010501166A/en active Pending
-
2008
- 2008-06-25 HK HK08107069.3A patent/HK1111857A1/en not_active IP Right Cessation
-
2010
- 2010-02-10 JP JP2010000813U patent/JP3163199U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008138218A1 (en) * | 2007-05-10 | 2008-11-20 | Yiutak Leung | Water draining method and the draining pipe therefore |
| WO2009033354A1 (en) * | 2007-09-05 | 2009-03-19 | Chung Yau Cheung | Penetration and convection pipe device for drainage and irrigation |
| CN101588711B (en) * | 2007-09-05 | 2011-06-29 | 张宗友 | Penetration and convection pipe device for drainage and irrigation |
| CN101660311B (en) * | 2008-08-26 | 2013-12-04 | 晖耀光电科技(厦门)有限公司 | Novel water drainage and collection pipe |
| CN102493411A (en) * | 2011-12-19 | 2012-06-13 | 梁忠成 | Drainage and irrigation pipe |
| WO2014198240A1 (en) * | 2013-06-13 | 2014-12-18 | Leung Yan Kiu | Multi-filtration drainage and irrigation water pipe, omni-directional planting pot and filtration drainage and irrigation pipe bundle |
| CN103329734A (en) * | 2013-06-25 | 2013-10-02 | 南京师范大学 | Device for inoculating wound roots of plants and application method thereof |
| CN104663409A (en) * | 2015-02-02 | 2015-06-03 | 和县秀山美地农业科技有限公司 | Greenhouse vegetable cultivation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101091448B (en) | 2010-05-12 |
| WO2008025195A8 (en) | 2008-05-08 |
| JP2010501166A (en) | 2010-01-21 |
| HK1111857A1 (en) | 2008-08-22 |
| JP3163199U (en) | 2010-10-07 |
| WO2008025195A1 (en) | 2008-03-06 |
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