CN101871542A - Full-compensation tubular embedded type piston needle valve - Google Patents
Full-compensation tubular embedded type piston needle valve Download PDFInfo
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- CN101871542A CN101871542A CN200910043217A CN200910043217A CN101871542A CN 101871542 A CN101871542 A CN 101871542A CN 200910043217 A CN200910043217 A CN 200910043217A CN 200910043217 A CN200910043217 A CN 200910043217A CN 101871542 A CN101871542 A CN 101871542A
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- water
- cylindrical shell
- hole
- groove
- compressing tablet
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Abstract
The invention discloses a full-compensation tubular embedded type piston needle valve comprising a set of first barrels arranged in a water pipe, the outer wall of the first barrel is provided with a plurality of labyrinth-like grooves which are arranged in parallel along the first barrel, and the effluent tail end of the previous groove is communicated with the water inlet of the latter groove; the water inlet end of each groove is provided with a water inlet communicated with the inner side of the first barrel, and the water outlet end of each groove is communicated with a pool; the water pipe is provided with a water outlet communicated with the pool; the inner chamber of the first barrel is provided with a second barrel provided with a communication hole communicated with the water inlet; one end of the second barrel is provided with a normally open water inlet hole; the other end from the normally open water inlet hole to the second barrel is successively provided with a gasket set, a spring, a piston needle valve and an integrated locking ring. When water pressure increases, the invention extends a water flow path; when water pressure decreases, the invention shortens the water flow path so as to realize water pressure regulation and ensure stable and even effluent pressure. Meanwhile, the invention is arranged by leaning on to the water pipe, so that the invention is suitable to be used in large-scale agriculture production.
Description
Technical field
The present invention relates to a kind of piston type needle-valve, particularly a kind of full-compensation tubular embedded type piston needle valve.
Background technique
In rural area cultivation, non-irrigated native plantation, afforestation and the operation of defending and controlling sand, all adopt sub-irrigation valve (or underground drip irrigation valve) to give the transfusion of watering of soil and crop automatically in a large number.But existing two problems of infiltration irrigation technology long-term existence: the first, when irrigating needs or when cutting off the water suddenly in order to satisfy, certainly lead to negative pressure in the water delivery transfusion system, and because the suction-operated of negative pressure, cement mortar in the external environment condition and other foreign material can be drawn in the infiltrating irrigation valve, make the terminal infiltrating irrigation mouth of system stop up easily, simultaneously, owing to osculum can not in time be closed and is easy to generate root system and twines, even take root to stretch in the osculum and result in blockage; The second,, make that the pressure of infiltrating irrigation water supply feed flow of water delivery transfusion system is inhomogeneous stable, thereby influence the optimum efficiency of automatic filtration irrigation owing to have difference and landform just to come and go during pressure of supply water.
Summary of the invention
Technical problem to be solved by this invention is, at the prior art deficiency, provides a kind of multi-form agriculture that is suitable for to irrigate, and water supply feed flow stabilized uniform full-compensation tubular embedded type piston needle valve.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of full-compensation tubular embedded type piston needle valve, comprise that one is set in first cylindrical shell in the water pipe, the outer wall of this first cylindrical shell is provided with the labyrinth-like groove that multiple tracks is arranged along the first cylindrical shell radial parallel, the terminal feed-water end that is communicated with one groove in back of preceding one groove water outlet along the water inlet direction, each road groove is together in series mutually, each groove feed-water end also is provided with and the inboard water intake that is communicated with of first cylindrical shell, the terminal pond that is communicated with of the water outlet of each groove, described water pipe is provided with the osculum that communicates with the pond; Second cylindrical shell is set in the inner chamber of described first cylindrical shell, offer the intercommunicating pore that is communicated with water intake on this second cylindrical shell, and an end of second cylindrical shell is provided with and often drives the water hole into, is provided with shim pack, spring, piston needle successively and integrates lock ring from the other end that often drives past second cylindrical shell in water hole into; This shim pack is provided with and often drives the main water port that the water hole communicates into, and this main water port is communicated with the intercommunicating pore of second cylindrical shell, and then is communicated with the water intake of first each groove of cylindrical shell; Replace the integration lock ring behind the sheathed piston packing of this piston needle one end, the spicule of shim pack master water port is stretched in one end setting, when spicule stretches into shim pack master water port, form an airtight chamber between piston needle and the shim pack, second cylindrical shell that is positioned at this airtight chamber is provided with the regulator hole that runs through first cylindrical shell and communicate with the pond; This spring housing is located on the spicule, and an end is replaced piston, and an end is replaced shim pack; Provide the priming hole that communicates with described water pipe inner chamber on this integration lock ring, the one side of this integration lock ring and piston needle contact is provided with some grooves.
Plug a water outlet cap in the described osculum, this water outlet cap comprises the cap core of a hollow, this cap core inserts in the osculum by its cone-shaped plug, the middle part of this cap core is provided with boss, card is established the taper cushion on this boss, and the end that this cap core protrudes water pipe is arranged with crown, and the edge of crown is against the taper cushion, and the crown inner tip is provided with a circular open, and some the water outlet grooves that extend to the crown edge communicate with circular open.
Described shim pack comprises multi-disc overcurrent compressing tablet, stacked sealed bolster on each overcurrent compressing tablet, stacked lock compressing tablet on last a slice sealed bolster; Offer the first current master through hole of up/down perforation on this overcurrent compressing tablet, and offer the flow channels of indent on the outer wall of this overcurrent compressing tablet, offer a plurality of flowing holes that communicate with the first current master through hole on this flow channels, this flow channels communicates with the intercommunicating pore of described second cylindrical shell; The periphery of sealing cushion is close to the inwall of second cylindrical shell, also offers the second current master through hole of funnel form on the sealing cushion; Also offer the 3rd current master through hole on this lock compressing tablet; After overcurrent compressing tablet, sealed bolster and the combination of lock compressing tablet, the first current master through hole, the second current master through hole and the 3rd current master through hole are communicated with, and form the main water port of described shim pack.
The outer wall of described lock compressing tablet is provided with the positioning part with second cylindrical shell location, and this positioning part is protruded object or groove, and described second cylindrical shell is provided with the latch part corresponding with the positioning part, and this latch part is groove or protruded object.
The surface of contact of described overcurrent compressing tablet and lock compressing tablet and described sealed bolster is provided with convex parts.
The middle part piston portion of described piston needle is slightly less than the internal diameter of second cylindrical shell, the slightly larger in diameter of the spicule front end of described piston needle is in the end diameter of the funnel form second current master through hole of sealed bolster, when described spicule front end stretches in the described main water port, main water port part is closed, distribute the flow direction of water inlet; The diameter of described spicule rear end is greater than the 3rd current master through-hole diameter of described lock compressing tablet.
The outer wall of described integration lock ring is provided with the holding division that fixes the location with second cylindrical shell, and this holding division is protruded object or groove; Described second cylindrical shell is provided with the solid lock section corresponding with holding division, and this solid lock section is groove or protruded object.
When the present invention uses, band of the present invention is integrated an end face of lock ring to the water pipe feed-water end, because first cylindrical shell is close on the pipe inner wall, the groove of each labyrinth-like just becomes separate airtight groove, piston needle valve when standard hydraulic pressure owing to see through to integrate the hydraulic pressure that the priming hole of lock ring imposes on the piston needle and equate with the elastic force that spring applies, piston needle valve rests on position (arrow is represented flow direction among this figure) as shown in Figure 1, enter water outlet pool from often driving the water that the water hole enters into through the groove of main water port and adjacent water outlet pool, and from osculum, flow out; When hydraulic pressure improves, the hydraulic pressure that imposes on the piston needle through the priming hole of integrating lock ring also increases, the spicule of piston needle further gos deep in the main water port of shim pack, thereby the water intake of enclosure portion groove, make from often drive into water that the water hole enters must be through main water port and the labyrinth-like that is closed groove enter water outlet pool, like this along with the increase of hydraulic pressure, long more from the trench length that often drives the current warp that the water hole enters into, decay to hydraulic pressure is big more, thereby can guarantee that when intake pressure changes the pressure that flows out water from osculum is even.Spring among the present invention and overcurrent compressing tablet, groove all can dispose according to the size reasonable of local hydraulic pressure, thereby the present invention can compensate entirely to the hydraulic pressure under the various situations.Because the present invention can be provided with in the water pipe that can extensively lay, thereby the present invention is suitable for utilization in the multi-form agriculture production.
The present invention plugs the water outlet cap in osculum, and adopt the taper cushion in the water outlet cap against crown, thereby water outlet can not enter in the water outlet cap by the taper cushion but the outside has the fluid and the root system of plant of silt, thereby stop up exhalant canal through the outflow of water outlet cap.
The experiment proved that on the PE of 250 meters long distances pipe, 300 the present invention that peg graft can evenly feed water by specified water-outlet quantity of unit time, the ratio of minimum water-outlet quantity and max water yield, the uniformity is 90%.
In specified compensatory pressure scope, can compensate 12 meters head discrepancy in elevation.Such as: for the initial water-outlet quantity standard of the complete stacked piston needle valve for infiltration irrigation of compensation of the present invention head, when head rises to 16 meters, can guarantee that also its water-outlet quantity and the ratio uniformity of standard water-outlet quantity are no more than 90% during specified 4 meters heads.In the time of 4 meters to 16 meters, when having 12 meters head discrepancy in elevation to change, can evenly feed water, the uniformity is in 90% scope.
Description of drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is the unfolded drawing of the present invention's first cylindrical shell.
Fig. 3 is the sectional view of sealed bolster of the present invention.
Fig. 4 is the sectional view of overcurrent compressing tablet of the present invention.
Fig. 5 locks the sectional view of compressing tablet for the present invention.
Fig. 6 integrates the sectional view of lock ring for the present invention.
Fig. 7 is the sectional view of the present invention's first cylindrical shell in conjunction with second cylindrical shell.
Fig. 8 is the sectional view of piston needle valve of the present invention.
Fig. 9 is the sectional view of water outlet cap of the present invention.
Figure 10 is the worm's eye view of water outlet cap of the present invention.
Embodiment
As Fig. 1-shown in Figure 7, the present invention includes first cylindrical shell 1 that is set in the water pipe 7, the outer wall of this first cylindrical shell 1 is provided with the groove 2 of multiple tracks labyrinth-like, and this multiple tracks groove 2 is arranged along the radial parallel of first cylindrical shell 1.Per pass groove 2 comprises a feed-water end 8 and water outlet end 9, this feed-water end 8 is provided with and the inboard water intake 3 that is communicated with of first cylindrical shell, and as shown in Figure 2, along the water outlet terminal 9 of preceding one groove of water inlet direction with after feed-water end 8 connections of groove, each road groove 2 just is together in series mutually like this, the water outlet of each groove terminal 9 is communicated with pond 4, and this water pipe 7 is provided with the osculum 26 that communicates with the pond.Second cylindrical shell 5 is set in the inner chamber of this first cylindrical shell 1, offer the intercommunicating pore 21 that is communicated with water intake 3 on this second cylindrical shell 5, and an end of second cylindrical shell 5 is provided with and often drives water hole 6 into, is provided with shim pack 10, spring 14, piston needle 15 successively and integrates lock ring 16 from the other end that often drives water hole 6 past second cylindrical shells 5 into.This shim pack 10 comprises multi-disc overcurrent compressing tablet 11, stacked sealed bolster 12 on each overcurrent compressing tablet 11, stacked lock compressing tablet 13 on last a slice sealed bolster 12.The central authorities of this overcurrent compressing tablet 11 offer the first current master through hole 17 of up/down perforation, and offer the flow channels 18 of indent on the outer wall of this overcurrent compressing tablet 11, offer some flowing holes 19 that communicate with the first current master through hole 17 on this flow channels 18.The periphery of sealing cushion 12 is close to the inwall of second cylindrical shell 5, so just can make from often driving the water that water hole 6 enters into, can be from peripheral seepage; The central authorities of sealing cushion 12 also offer the second current master through hole 20 of funnel form.The central authorities of this lock compressing tablet 13 also offer the 3rd current master through hole 22.After overcurrent compressing tablet 11, sealed bolster 12 and 13 combinations of lock compressing tablet, the first current master through hole 17, the second current master through hole 20 and the 3rd current master through hole 22 are communicated with, and form the main water port 27 of shim pack 10.The outer wall of this lock compressing tablet 13 is provided with the positioning part 23 with second cylindrical shell, 5 location, this positioning part 23 can make whole shim pack 10 tightly be locked within the scope, the position that the intercommunicating pore 21 that makes the flow channels 18 of overcurrent compressing tablet 11 be accurately positioned in second cylindrical shell is connected with the outer wall trench water intake 3 of first cylindrical shell 1 just forms a flow channel along the first current master through hole 17, flowing hole 19, flow channels 18, intercommunicating pore 21, water intake 3, groove 2 and pond 4 like this.This positioning part 23 can be protruded object, the groove of lock compressing tablet 13 outer walls, or other common snap close thing.This second cylindrical shell 5 is provided with the latch part 24 corresponding with positioning part 23, and this latch part 24 can be groove, protruded object, or other common snap close thing.This overcurrent compressing tablet 11 and lock compressing tablet 13 are provided with convex parts 42 with the surface of contact of sealed bolster 12, and when this overcurrent compressing tablet 11 and lock compressing tablet 13 and sealed bolster 12 were stacked, this convex parts 42 can fall into in the sealed bolster 12, thereby plays seal action.
As Fig. 1, shown in Figure 8, the sheathed piston packing 28 that is attached to second cylindrical shell, 5 inwalls of these piston needle 15 1 ends, the centre is a piston portion 29, the diameter of this piston portion 29 is slightly less than the internal diameter of second cylindrical shell 5.The other end of this piston needle 15 is a spicule 25, this little rear end of spicule 25 front ends is big, the slightly larger in diameter of front end is in the end diameter of the funnel form second current master through hole 20 of sealed bolster 12, the front end of this spicule 25 can stretch in the main water port 27, and main water port 27 parts are closed, the flow direction of distributing water inlet, and when spicule 25 stretches into the main water port 27 of shim pack, form an airtight chamber 30 between piston needle 15 and the shim pack 10, second cylindrical shell 5 that is positioned at this airtight chamber 30 is provided with the regulator hole 31 that runs through first cylindrical shell 1 and communicate with pond 4; The diameter of this spicule rear end just can stop to move like this when the spicule rear end of piston needle 15 moves to lock compressing tablet 13, thereby play position-limiting action greater than the diameter of the 3rd current master through hole 22 of lock compressing tablet 13.Between the lock compressing tablet 13 of the piston portion of this piston needle 15 and shim pack 10 spring 14 is set.
As Fig. 6, shown in Figure 7, provide the priming hole 32 that communicates with the inner chamber of described water pipe 7 on this integration lock ring 16, this integration lock ring 16 is provided with some grooves 33 with the one side of piston needle 15 contacts, when making this integration lock ring 16 be pressed into second cylindrical shell 5, piston needle 15, spring 14 are locked together in second cylindrical shell 5, make the parts in second cylindrical shell 5 constitute an integral body, simultaneously when integrating lock ring 16 abuts against plunger needles 15, fluid is the end face of contact piston needle 15 entirely, guarantees 15 unrestricted motions in second cylindrical shell 5 of piston needle.The outer wall of this integration lock ring 16 is provided with the holding division 42 that fixes the location with second cylindrical shell 5.This holding division 42 can be protruded object, the groove of integrating lock ring 16 outer walls, or other common snap close thing.This second cylindrical shell 5 is provided with the solid lock section 43 corresponding with holding division 42, and this solid lock section 43 can be groove, protruded object, or other common snap close thing.
Fig. 1, Fig. 9 and shown in Figure 10, also can insert a water outlet cap 34 in this osculum 26, this water outlet cap 34 comprises the cap core 35 of a hollow, this cap core 35 inserts in the osculum 26 by the cone-shaped plug 36 of one end, the middle part of this cap core 35 is provided with boss 37, sheathed taper cushion 38 on this boss 37, the end that this cap core 35 protrudes water pipe 7 is arranged with crown 39, the edge of crown 39 is against taper cushion 38, and crown 39 inner tip are provided with a circular open 40, and some the water outlet grooves 41 that extend to crown 39 edges communicate with circular open 40.
Claims (7)
1. full-compensation tubular embedded type piston needle valve, it is characterized in that comprising that one is set in first cylindrical shell in the water pipe, the outer wall of this first cylindrical shell is provided with the labyrinth-like groove that multiple tracks is arranged along the first cylindrical shell radial parallel, the terminal feed-water end that is communicated with one groove in back of preceding one groove water outlet along the water inlet direction, each road groove is together in series mutually, each groove feed-water end also is provided with and the inboard water intake that is communicated with of first cylindrical shell, the terminal pond that is communicated with of the water outlet of each groove, described water pipe is provided with the osculum that communicates with the pond; Second cylindrical shell is set in the inner chamber of described first cylindrical shell, offer the intercommunicating pore that is communicated with water intake on this second cylindrical shell, and an end of second cylindrical shell is provided with and often drives the water hole into, is provided with shim pack, spring, piston needle successively and integrates lock ring from the other end that often drives past second cylindrical shell in water hole into; This shim pack is provided with and often drives the main water port that the water hole communicates into, and this main water port is communicated with the intercommunicating pore of second cylindrical shell, and then is communicated with the water intake of first each groove of cylindrical shell; Replace the integration lock ring behind the sheathed piston packing of this piston needle one end, the spicule of shim pack master water port is stretched in one end setting, when spicule stretches into shim pack master water port, form an airtight chamber between piston needle and the shim pack, second cylindrical shell that is positioned at this airtight chamber is provided with the regulator hole that runs through first cylindrical shell and communicate with the pond; This spring housing is located on the spicule, and an end is replaced piston, and an end is replaced shim pack; Provide the priming hole that communicates with described water pipe inner chamber on this integration lock ring, the one side of this integration lock ring and piston needle contact is provided with some grooves.
2. full-compensation tubular embedded type piston needle valve according to claim 1, it is characterized in that, plug a water outlet cap in the described osculum, this water outlet cap comprises the cap core of a hollow, this cap core inserts in the osculum by its cone-shaped plug, the middle part of this cap core is provided with boss, card is established the taper cushion on this boss, the end that this cap core protrudes water pipe is arranged with crown, the edge of crown is against the taper cushion, and the crown inner tip is provided with a circular open, and some the water outlet grooves that extend to the crown edge communicate with circular open.
3. full-compensation tubular embedded type piston needle valve according to claim 1 is characterized in that, described shim pack comprises multi-disc overcurrent compressing tablet, stacked sealed bolster on each overcurrent compressing tablet, stacked lock compressing tablet on last a slice sealed bolster; Offer the first current master through hole of up/down perforation on this overcurrent compressing tablet, and offer the flow channels of indent on the outer wall of this overcurrent compressing tablet, offer a plurality of flowing holes that communicate with the first current master through hole on this flow channels, this flow channels communicates with the intercommunicating pore of described second cylindrical shell; The periphery of sealing cushion is close to the inwall of second cylindrical shell, also offers the second current master through hole of funnel form on the sealing cushion; Also offer the 3rd current master through hole on this lock compressing tablet; After overcurrent compressing tablet, sealed bolster and the combination of lock compressing tablet, the first current master through hole, the second current master through hole and the 3rd current master through hole are communicated with, and form the main water port of described shim pack.
4. full-compensation tubular embedded type piston needle valve according to claim 3, it is characterized in that, the outer wall of described lock compressing tablet is provided with the positioning part with second cylindrical shell location, this positioning part is protruded object or groove, described second cylindrical shell is provided with the latch part corresponding with the positioning part, and this latch part is groove or protruded object.
5. full-compensation tubular embedded type piston needle valve according to claim 3 is characterized in that, the surface of contact of described overcurrent compressing tablet and lock compressing tablet and described sealed bolster is provided with convex parts.
6. full-compensation tubular embedded type piston needle valve according to claim 1, it is characterized in that, the middle part piston portion of described piston needle is slightly less than the internal diameter of second cylindrical shell, the slightly larger in diameter of the spicule front end of described piston needle is in the end diameter of the funnel form second current master through hole of sealed bolster, when described spicule front end stretches in the described main water port, main water port part is closed, distribute the flow direction of water inlet; The diameter of described spicule rear end is greater than the 3rd current master through-hole diameter of described lock compressing tablet.
7. full-compensation tubular embedded type piston needle valve according to claim 1 is characterized in that, the outer wall of described integration lock ring is provided with the holding division that fixes the location with second cylindrical shell, and this holding division is protruded object or groove; Described second cylindrical shell is provided with the solid lock section corresponding with holding division, and this solid lock section is groove or protruded object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910043217XA CN101871542B (en) | 2009-04-27 | 2009-04-27 | Full-compensation tubular embedded type piston needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910043217XA CN101871542B (en) | 2009-04-27 | 2009-04-27 | Full-compensation tubular embedded type piston needle valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101871542A true CN101871542A (en) | 2010-10-27 |
| CN101871542B CN101871542B (en) | 2011-11-16 |
Family
ID=42996566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910043217XA Expired - Fee Related CN101871542B (en) | 2009-04-27 | 2009-04-27 | Full-compensation tubular embedded type piston needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101871542B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102511360A (en) * | 2011-11-18 | 2012-06-27 | 海峡（厦门）现代农业研究院有限公司 | Water supply device of water storage container of plant planter to plant planting container |
| CN107182620A (en) * | 2017-01-17 | 2017-09-22 | 青岛农业大学 | Drip irrigation type agricultural greenhouse system and greenhouse gardening method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3716349A1 (en) * | 1987-05-13 | 1988-11-24 | Haberecht Helga | Control system for irrigation systems |
| CN2351944Y (en) * | 1998-05-18 | 1999-12-08 | 温和 | Multiple purpose nozzle for fertitlizing and spreading pesticide into soil under mulch-film |
| CN2516759Y (en) * | 2001-12-12 | 2002-10-16 | 杨安 | Piston needle valve |
| CN1258967C (en) * | 2003-10-22 | 2006-06-14 | 华中科技大学 | Inserting pole type irrigation device |
| CN100526697C (en) * | 2005-08-08 | 2009-08-12 | 杨安 | Piston type needle valve for infiltration irrigation |
-
2009
- 2009-04-27 CN CN200910043217XA patent/CN101871542B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102511360A (en) * | 2011-11-18 | 2012-06-27 | 海峡（厦门）现代农业研究院有限公司 | Water supply device of water storage container of plant planter to plant planting container |
| CN107182620A (en) * | 2017-01-17 | 2017-09-22 | 青岛农业大学 | Drip irrigation type agricultural greenhouse system and greenhouse gardening method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101871542B (en) | 2011-11-16 |
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Granted publication date: 20111116 Termination date: 20180427 |