CN102294307A - Plug-in water dropper used for subsurface drip irrigation and manufacturing process thereof - Google Patents
Plug-in water dropper used for subsurface drip irrigation and manufacturing process thereof Download PDFInfo
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- CN102294307A CN102294307A CN2011101733519A CN201110173351A CN102294307A CN 102294307 A CN102294307 A CN 102294307A CN 2011101733519 A CN2011101733519 A CN 2011101733519A CN 201110173351 A CN201110173351 A CN 201110173351A CN 102294307 A CN102294307 A CN 102294307A
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Abstract
The invention relates to a device used for subsurface drip irrigation and a manufacturing process thereof. The plug-in water dropper used for the underground drip irrigation comprises a tube case and an inflow connecting pipe, wherein the tube case is internally provided with a solid rod, and a spiral water pipeline is arranged between the solid rod and the tube case. The manufacturing process mainly comprises the following steps: determining a concrete structure of the plug-in water dropper; carrying out extrusion moulding to form a hollow or solid spiral line and a cylinder type solid rod, directly winding the spiral line on the solid rod, and integrating the spiral line with the solid rod by hot seal; winding a casting film producing belt on the outer layer of the spiral line and carrying out the heat seal, and carrying out mutual side pressing and the heat seal while the film belt is wound so as to manufacture a drip irrigation tube; producing an inflow cap finished product for standby application; cutting the drip irrigation tube into sections; and coating glues at one end of the sectioned drip irrigation tube, and inserting the inflow finished product. The plug-in water dropper has simple structure, and is simple and convenient to mount and dismount, easy to maintain and economic and practical, and the manufacturing process of the plug-in water dropper has simple manufacturing method, is convenient to operate, can greatly save cost and is economic and practical.
Description
Technical field
The present invention relates to a kind of device and manufacture craft that is used for underground drip irrigation, especially a kind of plug-in type water dropper and manufacture craft that is used for underground drip irrigation.
Background technology
At present, New Water-saving Irrigation is applied in the every field of agricultural production more and more as sprinkling irrigation, drip irrigation etc., a kind of novel fruit tree water-saving irrigation technique of normal employing in the forest plantation, it is underground drip irrigation technique, this underground drip irrigation technique utilization is delivered to crop root with plastic tube with water, then by the underground water dropper that is embedded in of a kind of special construction of connecting, very longly irrigate to the crop root infiltration, have significant water saving, energy-conservation, saving of labor's characteristics.Because the architectural difference of water dropper is very big, so operation effectiveness is also different, Chinese patent CN2845434 discloses a kind of plug-in type infiltrating irrigation pipe, comprising the bottom is cone-shaped hollow tube, the lower end of body is provided with several infiltration holes, the upper end of pipe is provided with the tube connector that can be connected with feed pipe, also is provided with the exhaust gear that comprises air bleeding valve.This plug-in type infiltrating irrigation pipe have infiltrating irrigation effective, use advantage simply and easily safely, but its complex structure, and complex manufacturing technology, production cost is higher, has influenced production and result of use.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, infiltrating irrigation is effective, install and use simple and convenient, the manufacture craft that is used for above-mentioned plug-in type water dropper that provides a kind of manufacture method simple, easy and simple to handle, practical is provided for the economical and practical plug-in type water dropper that is used for underground drip irrigation, another object of the present invention.
The invention discloses a kind of plug-in type water dropper that is used for underground drip irrigation, comprise body shell 4, water inlet tube connector 1, it is characterized in that being in the body shell 4 cavity, be provided with solid bar 3 in the body shell 4, between described solid bar 3 and body shell 4, be provided with spiral channel 7, described spiral channel 7 one ends are connected with water inlet tube connector 1, and other end opening forms water dropping openings 5.
Being connected by water inlet cap 6 between described water inlet tube connector 1 and the body shell 4, is cavity in the water inlet cap 6, and the tube connector 1 of intaking is connected with spiral channel 7 by above-mentioned cavity.
Described spiral channel 7 is to constitute like this: can be to be provided with spiral curve 2 between described solid bar 3 and the body shell 4, described spiral curve 2 is hollow lines or solid lines, and the gap between the cavity of described hollow lines or solid lines and the solid lines forms spiral channel 7.
Described spiral curve 2 can be an one with body shell 4, and promptly described body shell 4 inwalls are provided with spiral curve 2; Also can be to state body shell 4 not to be one with spiral curve 2, described spiral curve 2 be wound on the described solid bar 3, is that spiral curve 2, solid bar 3,4 three parts that separate of body shell are combined.
Described spiral curve 2 sections are rectangle, circle or triangle.
A kind of manufacture craft that is used for the plug-in type water dropper of underground drip irrigation is characterized in that mainly comprising following processing step:
(1), determine the concrete structure of plug-in type water dropper: comprise body shell 4, water inlet tube connector 1, in the body shell 4 is cavity, be provided with solid bar 3 in the body shell 4, between described solid bar 3 and body shell 4, be provided with spiral channel 7, described spiral channel 7 one ends are connected with water inlet tube connector 1, other end opening forms water dropping openings 5, described spiral channel 7 is to constitute like this: be provided with spiral curve 2 between described solid bar 3 and the body shell 4, described spiral curve 2 is wound on the described solid bar 3, described spiral curve 2 is hollow lines or solid lines, gap between the cavity of described hollow lines or solid lines and the solid lines forms spiral channel 7, be connected by water inlet cap 6 between described water inlet tube connector 1 and the body shell 4, in the water inlet cap 6 is cavity, and water inlet tube connector 1 is connected with spiral channel 7 by above-mentioned cavity;
(2), go out hollow or solid spiral curve 2, go out column type solid bar 3 with the plastic material extrusion molding, the spiral curve 2 that extrusion molding is gone out directly is wound on the column type solid bar 3 that extrusion molding goes out with the plastic material extrusion molding, and with both heat seals together;
(3), with plastic material casting membrane band 10, described film band 10 is the flat material band; The film band 10 that injects directly is wrapped on the skin of the spiral curve 2 that has formed spiral channel 7, and with both heat seals together, mutual flanging when film band 10 twines, and will make the drip irrigation body after the adjacent limit heat seal together;
(4), production water inlet cap 6 finished products are standby;
(5), according to the length of producing needs, with the above-mentioned drip irrigation body section of finishing of being cut into;
(6), on an end housing of the drip irrigation body of the section of being divided into, apply glue, insert in water inlet cap 6 finished products of having produced then, promptly get plug-in type water dropper finished product.
In the actual production process, all be the heat seal all-in-one-piece between body shell 4 and spiral curve 2 and helical form lines 2 and the solid bar 3, the body manufacture craft is continuous, middle uninterrupted, film band 10 is twined again at spiral curve 2 skins in one side extrusion of solid rod 3, one side winding screw lines 2, one side thereon, can produce the body of endless, and then the section of being cut into.
Another kind is used for the manufacture craft of the plug-in type water dropper of underground drip irrigation, it is characterized in that mainly comprising following processing step:
(1), determine the concrete structure of plug-in type water dropper: comprise body shell 4, water inlet tube connector 1, in the body shell 4 is cavity, be provided with solid bar 3 in the body shell 4, between described solid bar 3 and body shell 4, be provided with spiral channel 7, described spiral channel 7 one ends are connected with water inlet tube connector 1, other end opening forms water dropping openings 5, described spiral channel 7 is to constitute like this: be provided with spiral curve 2 between described solid bar 3 and the body shell 4, described spiral curve 2 is an one with body shell 4, be that described body shell 4 inwalls are provided with spiral curve 2, described spiral curve 2 is hollow lines or solid lines, gap between the cavity of described hollow lines or solid lines and the solid lines forms spiral channel 7, be connected by water inlet cap 6 between described water inlet tube connector 1 and the body shell 4, in the water inlet cap 6 is cavity, and water inlet tube connector 1 is connected with spiral channel 7 by above-mentioned cavity;
(2), go out column type solid bar 3 with the plastic material extrusion molding, go out the streakline band 8 of certain width with the plastic material extrusion molding, described streakline band 8 is for being provided with the material bands of linear pattern raised line 9, the streakline band 8 that extrusion molding is gone out is that inwall directly is wrapped on the column type solid bar 3 that extrusion molding goes out with the one side that has raised line, simultaneously together with both heat seals, the mutual flanging when twining of described streakline band 8, the drip irrigation body is promptly made in adjacent two limit heat seals together;
(4), production water inlet cap 6 finished products are standby;
(5), according to the length of needs in producing, with the above-mentioned drip irrigation body section of finishing of being cut into;
(6), on an end housing of the drip irrigation body of the section of being divided into, apply glue, insert in water inlet cap 6 finished products of having produced then, promptly get plug-in type water dropper finished product.
Above-mentioned plastic material is a pvc material.
Compared with prior art, the invention has the advantages that: the plug-in type water dropper that is used for underground drip irrigation that is provided is not only simple in structure, installing/dismounting is simple and convenient, be easy to safeguard and maintenance, and can directly insert in the soil and can irrigate, infiltrating irrigation is effective, is a kind of economical and practical plug-in type water dropper that is used for underground drip irrigation, the manufacture craft of plug-in type water dropper provided by the present invention, manufacture method is simple, easy and simple to handle, can save cost greatly, and is economical and practical.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of the embodiment of the invention 1.
Fig. 2 is the structural representation of the embodiment of the invention 1.
The structural representation that Fig. 3 analyses and observe for the embodiment of the invention 2.
Fig. 4 is embodiment 1 a plug-in type water dropper schematic diagram of fabrication technology.
Fig. 5 is embodiment 3 streakline band structure schematic diagrames.
Fig. 6 is embodiment 3 plug-in type water dropper schematic diagram of fabrication technology.
Shown in the figure: 1 is the water inlet tube connector, and 2 is spiral curve, and 3 is solid bar, and 4 is the body shell, and 5 is water dropping openings, and 6 are the water inlet cap, and 7 is spiral channel, and 8 is the streakline band, and 9 is raised line, and 10 is the film band.
The specific embodiment
Embodiment 1:
With reference to Fig. 1, Fig. 2, Fig. 4, structural representation for the invention process 1, comprise and the invention discloses a kind of plug-in type water dropper that is used for underground drip irrigation, comprise body shell 4, water inlet tube connector 1, in the body shell 4 is cavity, is provided with solid bar 3 in the body shell 4, is provided with spiral channel 7 between described solid bar 3 and body shell 4, described spiral channel 7 one ends are connected with water inlet tube connector 1, and other end opening forms water dropping openings 5.
Being connected by water inlet cap 6 between described water inlet tube connector 1 and the body shell 4, is cavity in the water inlet cap 6, and the tube connector 1 of intaking is connected with spiral channel 7 by above-mentioned cavity.
Described spiral channel 7 is to constitute like this: be provided with spiral curve 2 between described solid bar 3 and the body shell 4, described spiral curve 2 is solid lines, and the gap between described solid lines and the solid lines forms spiral channel 7.
Described spiral curve 2 is the lines that are wound in separately on the described solid bar 3, not with body shell 4 integral productions.
Described spiral curve 2 sections are rectangle.
Present embodiment is used for the manufacture craft of the plug-in type water dropper of underground drip irrigation, it is characterized in that mainly comprising following processing step:
(1), determine the concrete structure of plug-in type water dropper: comprise body shell 4, water inlet tube connector 1, in the body shell 4 is cavity, be provided with solid bar 3 in the body shell 4, between described solid bar 3 and body shell 4, be provided with spiral channel 7, described spiral channel 7 one ends are connected with water inlet tube connector 1, other end opening forms water dropping openings 5, described spiral channel 7 is to constitute like this: be provided with spiral curve 2 between described solid bar 3 and the body shell 4, described spiral curve 2 is wound on the described solid bar 3, described spiral curve 2 solid lines, gap between described solid lines and the solid lines forms spiral channel 7, be connected by water inlet cap 6 between described water inlet tube connector 1 and the body shell 4, in the water inlet cap 6 is cavity, and water inlet tube connector 1 is connected with spiral channel 7 by above-mentioned cavity;
(2), go out hollow or solid spiral curve 2, go out column type solid bar 3 with the plastic material extrusion molding, the spiral curve 2 that extrusion molding is gone out directly is wound on the column type solid bar 3 that extrusion molding goes out with the plastic material extrusion molding, and with both heat seals together;
(3), with plastic material casting membrane band 10, described film band 10 is the flat material band, described film band 10 can be thick 1mm ~ 2mm, wide 2cm ~ 5cm; The film band 10 that injects directly is wrapped on the skin of the spiral curve 2 that has formed spiral channel 7, and with both heat seals together, mutual flanging when film band 10 twines, and will make the drip irrigation body after the adjacent limit heat seal together;
(4), production water inlet cap 6 finished products are standby;
(5), according to the length of producing needs, with the above-mentioned drip irrigation body section of finishing of being cut into;
(6), on an end housing of the drip irrigation body of the section of being divided into, apply glue, insert in water inlet cap 6 finished products of having produced then, promptly get plug-in type water dropper finished product.
In the actual production process, all be the heat seal all-in-one-piece between body shell 4 and spiral curve 2 and helical form lines 2 and the solid bar 3, the body manufacture craft is continuous, middle uninterrupted, film band 10 is twined again at spiral curve 2 skins in one side extrusion of solid rod 3, one side winding screw lines 2, one side thereon, can produce the body of endless, and then the section of being cut into.
Above-mentioned plastic material is a pvc material.
Embodiment 2:
With reference to Fig. 3, to compare with embodiment 1, the difference of present embodiment is that described spiral curve 2 is the hollow lines, the cavity of described hollow lines forms spiral channel 7, described spiral curve 2 section circles.
Embodiment 3:
Compare with embodiment 1, the difference of present embodiment is not establish between described water inlet tube connector 1 and the body shell 4 water inlet cap 6, and water inlet tube connector 1 directly is connected with spiral channel 7.In its manufacturing process steps, will shut at an end of the pipe racks of the section of being divided into, burrowing on the shell is connected with spiral channel 7, coats polyvinyl chloride glue, inserts water inlet tube connector 1 then, promptly gets plug-in type water dropper finished product.Described spiral curve 2 sections are triangle.
Embodiment 4:
Compare with embodiment 1, the difference of present embodiment is that described spiral curve 2 is to be one with body shell 4, and promptly described body shell 4 inwalls are provided with spiral curve 2, and described spiral curve 2 sections are triangle.
Embodiment 5:
With reference to Fig. 5, Fig. 6, a kind of manufacture craft that is used for the plug-in type water dropper of underground drip irrigation is characterized in that mainly comprising following processing step:
(1), determine the concrete structure of plug-in type water dropper: comprise body shell 4, water inlet tube connector 1, in the body shell 4 is cavity, be provided with solid bar 3 in the body shell 4, between described solid bar 3 and body shell 4, be provided with spiral channel 7, described spiral channel 7 one ends are connected with water inlet tube connector 1, other end opening forms water dropping openings 5, described spiral channel 7 is to constitute like this: be provided with spiral curve 2 between described solid bar 3 and the body shell 4, described spiral curve 2 is an one with body shell 4, be that described body shell 4 inwalls are provided with spiral curve 2, described spiral curve 2 is hollow lines or solid lines, gap between the cavity of described hollow lines or solid lines and the solid lines forms spiral channel 7, be connected by water inlet cap 6 between described water inlet tube connector 1 and the body shell 4, in the water inlet cap 6 is cavity, and water inlet tube connector 1 is connected with spiral channel 7 by above-mentioned cavity;
(2), go out column type solid bar 3 with the plastic material extrusion molding, go out the streakline band 8 of certain width with the plastic material extrusion molding, described streakline band 8 is for being provided with the material bands of linear pattern raised line 9, the streakline band 8 that extrusion molding is gone out is that inwall directly is wrapped on the column type solid bar 3 that extrusion molding goes out with the one side that has raised line, simultaneously together with both heat seals, the mutual flanging when twining of described streakline band 8, the drip irrigation body is promptly made in adjacent two limit heat seals together;
(4), production water inlet cap 6 finished products are standby;
(5), according to the length of needs in producing, with the above-mentioned drip irrigation body section of finishing of being cut into;
(6), on an end housing of the drip irrigation body of the section of being divided into, apply glue, insert in water inlet cap 6 finished products of having produced then, promptly get plug-in type water dropper finished product.
Above-mentioned plastic material is a pvc material.Described spiral curve 2 sections are rectangle.
Embodiment 6:
Compare with embodiment 5, the difference of present embodiment is that described spiral curve 2 sections are triangle.
Embodiment 7:
Compare with embodiment 5, the difference of present embodiment is described spiral curve 2 section circles.
Claims (10)
1. plug-in type water dropper that is used for underground drip irrigation, comprise body shell (4), water inlet tube connector (1), it is characterized in that being in the body shell (4) cavity, be provided with solid bar (3) in the body shell (4), between described solid bar (3) and body shell (4), be provided with spiral channel (7), described spiral channel (7) one ends are connected with water inlet tube connector (1), and other end opening forms water dropping openings (5).
2. the plug-in type water dropper that is used for underground drip irrigation as claimed in claim 1, it is characterized in that being connected by water inlet cap (6) between described water inlet tube connector (1) and the body shell (4), in the water inlet cap (6) is cavity, and water inlet tube connector (1) is connected with spiral channel (7) by above-mentioned cavity.
3. the plug-in type water dropper that is used for underground drip irrigation as claimed in claim 1 or 2, it is characterized in that described spiral channel (7) is to constitute like this: be provided with spiral curve (2) between described solid bar (3) and the body shell (4), described spiral curve (2) is hollow lines or solid lines, and the gap between the cavity of described hollow lines or solid lines and the solid lines forms spiral channel (7).
4. the plug-in type water dropper that is used for underground drip irrigation as claimed in claim 3 is characterized in that described spiral curve (2) and body shell (4) are one, and promptly described body shell (4) inwall is provided with spiral curve (2).
5. the plug-in type water dropper that is used for underground drip irrigation as claimed in claim 3 is characterized in that described spiral curve (2) is wound on the described solid bar (3).
6. the plug-in type water dropper that is used for underground drip irrigation as claimed in claim 3 is characterized in that described spiral curve (2) section is rectangle, circle or triangle.
7. the plug-in type water dropper that is used for underground drip irrigation as claimed in claim 4 is characterized in that described spiral curve (2) section is rectangle, circle or triangle.
8. manufacture craft that is used for the plug-in type water dropper of underground drip irrigation is characterized in that mainly comprising following processing step:
(1), determine the concrete structure of plug-in type water dropper: comprise body shell (4), water inlet tube connector (1), in the body shell (4) is cavity, be provided with solid bar (3) in the body shell (4), between described solid bar (3) and body shell (4), be provided with spiral channel (7), described spiral channel (7) one ends are connected with water inlet tube connector (1), other end opening forms water dropping openings (5), described spiral channel (7) is to constitute like this: be provided with spiral curve (2) between described solid bar (3) and the body shell (4), described spiral curve (2) is wound on the described solid bar (3), described spiral curve (2) is hollow lines or solid lines, gap between the cavity of described hollow lines or solid lines and the solid lines forms spiral channel (7), be connected by water inlet cap (6) between described water inlet tube connector (1) and the body shell (4), in the water inlet cap (6) is cavity, and water inlet tube connector (1) is connected with spiral channel (7) by above-mentioned cavity;
(2), go out hollow or solid spiral curve (2) with the plastic material extrusion molding, go out column type solid bar (3) with the plastic material extrusion molding, the spiral curve (2) that extrusion molding is gone out directly is wound on the column type solid bar (3) that extrusion molding goes out, and with both heat seals together;
(3), with plastic material casting membrane band (10), described film band (10) is the flat material band; The film band (10) that injects directly is wrapped on the skin of the spiral curve (2) that has formed spiral channel (7), and with both heat seals together, mutual flanging when film band (10) twines, and will make the drip irrigation body after the adjacent limit heat seal together;
(4), production water inlet cap (6) finished product is standby;
(5), according to the length of producing needs, with the above-mentioned drip irrigation body section of finishing of being cut into;
(6), on an end housing of the drip irrigation body of the section of being divided into, apply glue, insert in water inlet cap (6) finished product of having produced then, promptly get plug-in type water dropper finished product.
9. manufacture craft that is used for the plug-in type water dropper of underground drip irrigation is characterized in that mainly comprising following processing step:
(1), determine the concrete structure of plug-in type water dropper: comprise body shell (4), water inlet tube connector (1), in the body shell (4) is cavity, be provided with solid bar (3) in the body shell (4), between described solid bar (3) and body shell (4), be provided with spiral channel (7), described spiral channel (7) one ends are connected with water inlet tube connector (1), other end opening forms water dropping openings (5), described spiral channel (7) is to constitute like this: be provided with spiral curve (2) between described solid bar (3) and the body shell (4), described spiral curve (2) is an one with body shell (4), be that described body shell (4) inwall is provided with spiral curve (2), described spiral curve (2) is hollow lines or solid lines, gap between the cavity of described hollow lines or solid lines and the solid lines forms spiral channel (7), be connected by water inlet cap (6) between described water inlet tube connector (1) and the body shell (4), in the water inlet cap (6) is cavity, and water inlet tube connector (1) is connected with spiral channel (7) by above-mentioned cavity;
(2), go out column type solid bar (3) with the plastic material extrusion molding, go out the streakline band (8) of certain width with the plastic material extrusion molding, described streakline band (8) is for being provided with the material bands of linear pattern raised line (9), the streakline band (8) that extrusion molding is gone out is that inwall directly is wrapped on the column type solid bar (3) that extrusion molding goes out with the one side that has raised line, simultaneously together with both heat seals, described streakline band (8) mutual flanging when twining, the drip irrigation body is promptly made in adjacent two limit heat seals together;
(3), production water inlet cap (6) finished product is standby;
(4), according to the length of needs in producing, with the above-mentioned drip irrigation body section of finishing of being cut into;
(5), on an end housing of the drip irrigation body of the section of being divided into, apply glue, insert in water inlet cap (6) finished product of having produced then, promptly get plug-in type water dropper finished product.
10. the manufacture craft that is used for the plug-in type water dropper of underground drip irrigation as claimed in claim 9 is characterized in that described plastic material is a pvc material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110173351 CN102294307B (en) | 2011-06-26 | 2011-06-26 | Manufacturing process of plug-in water dropper used for subsurface drip irrigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110173351 CN102294307B (en) | 2011-06-26 | 2011-06-26 | Manufacturing process of plug-in water dropper used for subsurface drip irrigation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102294307A true CN102294307A (en) | 2011-12-28 |
| CN102294307B CN102294307B (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110173351 Expired - Fee Related CN102294307B (en) | 2011-06-26 | 2011-06-26 | Manufacturing process of plug-in water dropper used for subsurface drip irrigation |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3981452A (en) * | 1975-02-10 | 1976-09-21 | Gershon Eckstein | Irrigation pipes with dripper units and method of its manufacture |
| FR2335329A1 (en) * | 1975-12-19 | 1977-07-15 | Drostub Sa | Double-wall plastics pipes - with one smooth outer and one spirally corrugated wall, for drip irrigation in arid regions |
| CN2286547Y (en) * | 1995-10-05 | 1998-07-29 | 徐志昂 | Coiled mini-tube water-discharging device |
| CN2420843Y (en) * | 2000-05-30 | 2001-02-28 | 刘刚 | External inserted eddy blocking-up-resisting water dropper |
| CN2506355Y (en) * | 2001-11-10 | 2002-08-21 | 戴伯欣 | Pipe type drop head |
| CN201385000Y (en) * | 2009-04-03 | 2010-01-20 | 傅海涛 | Demountable dripper and drip irrigation pipe with same |
-
2011
- 2011-06-26 CN CN 201110173351 patent/CN102294307B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3981452A (en) * | 1975-02-10 | 1976-09-21 | Gershon Eckstein | Irrigation pipes with dripper units and method of its manufacture |
| FR2335329A1 (en) * | 1975-12-19 | 1977-07-15 | Drostub Sa | Double-wall plastics pipes - with one smooth outer and one spirally corrugated wall, for drip irrigation in arid regions |
| CN2286547Y (en) * | 1995-10-05 | 1998-07-29 | 徐志昂 | Coiled mini-tube water-discharging device |
| CN2420843Y (en) * | 2000-05-30 | 2001-02-28 | 刘刚 | External inserted eddy blocking-up-resisting water dropper |
| CN2506355Y (en) * | 2001-11-10 | 2002-08-21 | 戴伯欣 | Pipe type drop head |
| CN201385000Y (en) * | 2009-04-03 | 2010-01-20 | 傅海涛 | Demountable dripper and drip irrigation pipe with same |
Non-Patent Citations (1)
| Title |
|---|
| 姚立民等: "插入式渗灌的初步研究", 《西北农林科技大学学报（自然科学版）》 * |
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|---|---|
| CN102294307B (en) | 2013-05-15 |
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