CN103669305B - Farmland low-pressure delivery pipe spiral cover antiflushing type quota intake - Google Patents
Farmland low-pressure delivery pipe spiral cover antiflushing type quota intake Download PDFInfo
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- CN103669305B CN103669305B CN201310665837.3A CN201310665837A CN103669305B CN 103669305 B CN103669305 B CN 103669305B CN 201310665837 A CN201310665837 A CN 201310665837A CN 103669305 B CN103669305 B CN 103669305B
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- connecting seat
- delivery pipe
- screw rod
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Abstract
Farmland low-pressure delivery pipe spiral cover antiflushing type quota intake, belongs to farmland piping transportation water irrigation field of engineering technology.Including low-pressure delivery pipe, it is characterized in that, provided with inhalant region, exhalant region and checking motion, checking motion is arranged in exhalant region, inhalant region is connected with low-pressure delivery pipe and checking motion respectively, the inhalant region is by standpipe, reducer tee is connected and composed, reducer tee is arranged on low-pressure delivery pipe bifurcation, the checking motion is by spiral cover, cylindrical shape connecting seat is constituted, screw rod is provided with the middle part of caping on the inside of spiral cover, the connecting seat, which is nested with, to be connected on standpipe, connecting seat center is provided with the screw mount matched with screw rod, spiral cover passes through screw rod, screw mount is threadedly coupled with connecting seat, the screw rod bottom, which is provided with, prevents that screw rod from skidding off the alignment pin of screw mount.The present invention spiral cover, screw design compared with other presser type intakes, water-stagnating effect more preferably, rational in infrastructure, water flow stationary, repercussion effect is notable.
Description
Technical field
The present invention relates to a kind of accessory of farmland low pressure pipe irrigation system, and in particular to a kind of farmland low-pressure delivery pipe spiral cover antiflushing type quota intake, belongs to farmland piping transportation water irrigation field of engineering technology.
Background technology
The intake of low pressure pipe irrigation system is that flow shape directly influences the stability and the degradation degree to agricultural land soil of water intake facilities at the critical facility from pipeline to farmland water distribution, intake, or even influences whether the popularization and application of advanced irrigation technique.As farmland irrigation water management condition will gradually reach unanimity, water intake facilities erosion control technology will increasingly have research and extension application value, progressively be valued by people.
Intake is an important component of low-pressure water delivery irrigation conduit.Due to adaptability of the water delivery in pipeline system to landform, the pressure distribution of system is larger to open channel systematical difference, and the regulation of water, control require higher, are more paid close attention to so intake therein causes people.
For existing flush-prevention function again can research China of quota water intake facilities of stable water distribution be in the starting stage, still without ripe theory and product appearance.Regulation and control ability of the water intake facilities used at present for pipe-line system water yield are all poor, cause current to wash away that problem is more notable to agricultural land soil, the water operation of system and management of the use of water are also cumbersome.Therefore, the requirement in order to adapt to the management of current farmland irrigation water, real-time and accurately provides the water for needing to distribute to farmland, the quota intake matched with pipe-line system is developed then very necessary and very urgent.This is the key for reducing water outlet erosion control, improving field water effective rate of utilization, improving uniformity of irrigation water appilcation and reach design irrigating water quota etc..
The content of the invention
The purpose of the present invention be for above-mentioned the deficiencies in the prior art there is provided it is a kind of can erosion control again can quota water distribution farmland low-pressure delivery pipe spiral cover antiflushing type quota intake.
The purpose of the present invention is achieved through the following technical solutions：Farmland low-pressure delivery pipe spiral cover antiflushing type quota intake, including low-pressure delivery pipe, it is characterized in that, provided with inhalant region, exhalant region and checking motion, checking motion is arranged in exhalant region, inhalant region is connected with low-pressure delivery pipe and checking motion respectively, the inhalant region is by standpipe, reducer tee is connected and composed, reducer tee is arranged on low-pressure delivery pipe bifurcation, the checking motion is by spiral cover, cylindrical shape connecting seat is constituted, screw rod is provided with the middle part of caping on the inside of spiral cover, the connecting seat, which is nested with, to be connected on standpipe, connecting seat center is provided with the screw mount matched with screw rod, spiral cover passes through screw rod, screw mount is threadedly coupled with connecting seat, the screw rod bottom, which is provided with, prevents that screw rod from skidding off the alignment pin of screw mount.
Cementing connection between the connecting seat inwall and standing tube outer wall.
The spiral cover is external diameter of the internal diameter at the top of circle, spiral cover more than connecting seat.
The spiral cover, screw rod, alignment pin, connecting seat are made up of metal material.
The spiral cover inside top is provided with sealing gasket, and sealing gasket is made up of elastomeric material.
Top of the present invention is that a screw rod is fixed with the middle of a circular spiral cover, spiral cover inner side, and bottom is a cylindrical shape connecting seat for being used to connect standpipe and spiral cover.Because the internal diameter at the top of spiral cover is more than the external diameter of connecting seat（So as to form delivery port）, oppositely extending spiral cover lateral wall makes water outlet current and water (flow) direction of intaking is on the contrary, by the overcoat spiral cover on standpipe, intake base can eliminate current excess energy.Simultaneously by rotating the size of the spiral cover adjustable water outlet cross-section of river so as to corresponding with fixed distributed water flow.
Directly rotation spiral cover can automatically adjust the size of the delivery port cross-section of river, and the intake of different size model is corresponding with the position on the pipeline of place and distributed water flow.Pipeline pressure head more than needed is eliminated using the waterpower backsurging principle of overcoat spiral cover, it is to avoid during water intaking, current, which directly wash away agricultural land soil, causes the destruction to water intake facilities.Alignment pin can prevent that spiral cover from being come off using process, alignment pin position determines spiro rod length and spiral cover maximum opening simultaneously, ensure that the intake distributed water flow on diverse location is certain, the problem of antitheft intake in management of the use of water and quota water distribution is solved well, it is ensured that the uniformity of water distribution on irrigated area.The present invention spiral cover, screw design compared with other presser type intakes, water-stagnating effect more preferably, rational in infrastructure, water flow stationary, repercussion effect is notable.
Brief description of the drawings
Fig. 1 is the structural representation of delivery port opening of the present invention；
Fig. 2 is the structural representation of delivery port closed mode of the present invention；
Fig. 3 is the cross section structure diagram of connecting seat in the present invention；
Fig. 4 is the overlooking the structure diagram of connecting seat in the present invention；
In figure：1 screw rod, 2 sealing gaskets, 3 alignment pins, 4 connecting seats, 5 spiral covers, 6 exhalant regions, 7 reducer tees, 8 standpipes, 9 screw mounts.
Embodiment
Farmland low-pressure delivery pipe spiral cover antiflushing type quota intake, including low-pressure delivery pipe, inhalant region, exhalant region 6 and checking motion, checking motion are arranged in exhalant region, and inhalant region is connected with low-pressure delivery pipe and checking motion respectively.
Inhalant region is connected and composed by standpipe 8, reducer tee 7, and reducer tee is arranged on low-pressure delivery pipe bifurcation.Checking motion is made up of spiral cover 5, cylindrical shape connecting seat 4, screw rod 1 is provided with the middle part of the caping on the inside of spiral cover, connecting seat, which is nested with, to be connected on standpipe, cementing connection between connecting seat inwall and standing tube outer wall.
The center of connecting seat 4 is provided with the screw mount 9 matched with screw rod, and spiral cover is threadedly coupled by screw rod, screw mount with connecting seat, and screw rod bottom, which is provided with, prevents that screw rod from skidding off the alignment pin 3 of screw mount.
Spiral cover is external diameter of the internal diameter at the top of circle, spiral cover more than connecting seat, so as to form delivery port.Spiral cover inside top is provided with sealing gasket 2.Spiral cover, screw rod, alignment pin, connecting seat are made up of metal material, and sealing gasket is made up of elastomeric material.
Current flow through standpipe, flowed out from the space of screw mount, because the internal diameter at the top of spiral cover is more than the external diameter of connecting seat, oppositely extending spiral cover lateral wall makes water outlet current with water inlet water (flow) direction on the contrary, driving screw rod to be moved up and down in screw mount so as to adjust aperture by rotating spiral cover.
Claims (3)
1. a kind of farmland low-pressure delivery pipe spiral cover antiflushing type quota intake, including low-pressure delivery pipe, inhalant region, exhalant region and checking motion, checking motion is arranged in exhalant region, inhalant region is connected with low-pressure delivery pipe and checking motion respectively, the checking motion includes spiral cover, screw rod, the screw mount matched with screw rod, screw rod bottom is provided with alignment pin, the inhalant region is by standpipe, reducer tee is connected and composed, reducer tee is arranged on low-pressure delivery pipe bifurcation, the screw rod is arranged in the middle part of the caping on the inside of spiral cover, it is characterized in that, the checking motion also includes cylindrical shape connecting seat, connecting seat, which is nested with, to be connected on standpipe, and cementing connection between connecting seat inwall and standing tube outer wall, screw mount is placed in connecting seat center, spiral cover passes through screw rod, screw mount is threadedly coupled with connecting seat；The spiral cover is circle, and the internal diameter that spiral cover is circumferentially with the top of lateral wall, spiral cover is more than the external diameter of connecting seat.
2. farmland low-pressure delivery pipe spiral cover antiflushing type quota intake according to claim 1, it is characterized in that, the spiral cover, screw rod, alignment pin, connecting seat are made up of metal material.
3. farmland low-pressure delivery pipe spiral cover antiflushing type quota intake according to claim 1, it is characterized in that, the spiral cover inside top is provided with sealing gasket, and sealing gasket is made up of elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310665837.3A CN103669305B (en) | 2013-12-11 | 2013-12-11 | Farmland low-pressure delivery pipe spiral cover antiflushing type quota intake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310665837.3A CN103669305B (en) | 2013-12-11 | 2013-12-11 | Farmland low-pressure delivery pipe spiral cover antiflushing type quota intake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103669305A CN103669305A (en) | 2014-03-26 |
| CN103669305B true CN103669305B (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310665837.3A Active CN103669305B (en) | 2013-12-11 | 2013-12-11 | Farmland low-pressure delivery pipe spiral cover antiflushing type quota intake |
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| Country | Link |
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| CN (1) | CN103669305B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2403610A1 (en) * | 2002-09-17 | 2004-03-17 | Premier Tech 2000 Ltee | Buoyancy flushing apparatus and method thereof |
| CN201149098Y (en) * | 2007-11-30 | 2008-11-12 | 新疆水利水电科学研究院 | Improved low-pressure pipeline hydrant |
| CN201386799Y (en) * | 2009-04-15 | 2010-01-20 | 西北农林科技大学 | Energy dissipation and scouring control water supply device for farmland low-pressure pipeline water delivery irrigation |
| CN203603131U (en) * | 2013-12-11 | 2014-05-21 | 扬州大学 | Screw-cap scour-prevention rated water discharging opening of farmland low-pressure water conveying pipeline |
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2013
- 2013-12-11 CN CN201310665837.3A patent/CN103669305B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103669305A (en) | 2014-03-26 |
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