CN102962149B - Jetting type shower nozzle commutation controlling mechanism - Google Patents
Jetting type shower nozzle commutation controlling mechanism Download PDFInfo
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- CN102962149B CN102962149B CN201210471944.8A CN201210471944A CN102962149B CN 102962149 B CN102962149 B CN 102962149B CN 201210471944 A CN201210471944 A CN 201210471944A CN 102962149 B CN102962149 B CN 102962149B
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- commutation
- mouth
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- shower nozzle
- commutator
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Abstract
The invention belongs to a kind of fluid control devices, refer in particular to jetting type shower nozzle commutation controlling mechanism.Key component of the present invention is commutation controlling mechanism, this commutation controlling mechanism primarily of commutator, stopping means, connect mouth, conduit four part form.Commutator, stopping means, connect mouth and conduit and cooperatively interacted the forward of shower nozzle and backstepping and switching, the position of reversing valve core in commutator is controlled to realize the switching of signal current direction by stopping means, and carry out tonifying Qi and gas-water separation by the two-way gap on the cover plate of two-way gap and forward and reverse supravasal forward and reverse tonifying Qi hole, realize the running of fluid jet nozzle and two-way stepping.Jetting type shower nozzle commutation controlling mechanism reliability is better, and switch steadily, little to impulsive force of turning, service life is longer; Forward and backstepping can be realized, make fluid jet nozzle water distribution more even; Make gas-liquid separation more abundant; In reversal valve, insert permanent magnet, make switching more reliable and more stable.
Description
Technical field
The invention belongs to a kind of fluid control devices, refer in particular to jetting type shower nozzle commutation controlling mechanism, divide the fluid circuit Element Technology field belonging to and control by International Patent Classification (IPC) (IPC).
Background technology
Sprinkler irrigation technique is current one of water-saving technology efficiently, and shower nozzle is one of key equipment of spray irrigation system, and the quality of its performance directly has influence on the quality of sprinkling irrigation sprinkling.No. CN200710134562nd, Chinese patent discloses one " wall-attachment fluidics sprinkler ", and it, compared with traditional jetting type shower nozzle, has the advantages such as structure is simple, atomization good, cost is low.No. CN200410066136th, Chinese patent discloses a kind of self-priming jetting nozzle reverser, rotating and reverse of control jet shower nozzle is carried out by the opening and closing connecing mouth, in shower nozzle operation process, centering block and driving lever do not bear impact load repeatedly, reversing-gear does not need driving spring and reversion hook, and structure is simple.But this reversing device is still perfect not in actual use.First, this reversing device can only realize forward stepping, can not realize backstepping, oppositely can only operate continuously.Due to the oppositely running continuously of shower nozzle, when making shower nozzle reverse, range shortens, and water distribution uniformity is not as forward stepping; Secondly, gas-water separation requirement in fluid jet nozzle signal water pipe can not be met completely, make the attached wall of jetting type shower nozzle insufficient, job insecurity in stepping process, and there will be in the process that forward and reverse stepping switches " intermediateness " that cannot switch, shower nozzle normally cannot be worked, affect fluid jet nozzle performance; Finally, this reversing device is arranged on shower nozzle flow field end, need connect the fluidic signal being positioned at shower nozzle front end connect mouth and the reverse tonifying Qi hole being positioned at shower nozzle end by the plastics signal pipe of certain length.When being applied to large-scale shower nozzle, the length of signal pipe need be increased.Prove through test, signal length of pipe is long, can not realize gas-liquid separation in time, is unfavorable for that fluid jet nozzle operates.
Summary of the invention
The object of the invention is, overcome the deficiencies in the prior art, a kind of stable and reliable operation, jetting type shower nozzle commutation controlling mechanism rational in infrastructure are provided, improve the performance of existing fluid jet nozzle further, forward and reverse two-way stepping can be realized, and can runs steadily and switching more.
The technical solution adopted for the present invention to solve the technical problems is: the fluid jet nozzle applying jetting type shower nozzle commutation controlling mechanism of the present invention is made up of four parts such as rotary sealing mechanism, runner, fluidic, commutation controlling mechanisms.This fluid jet nozzle utilizes its fluidic to coordinate with the switching of commutation controlling mechanism the flow direction changing signal water, regulate the pressure in chamber, left and right in fluidic, realize power stream attached wall to the left or to the right in fluidic, thus the stepping that shower nozzle is realized to the left or to the right under the driving of attached wall power is rotated.Key component of the present invention is commutation controlling mechanism.Commutation controlling mechanism primarily of commutator, stopping means, connect mouth, conduit four part form.Control the position of the reversing valve core on commutator to realize the switching of signal current direction by stopping means, and carry out tonifying Qi and gas-water separation by forward and reverse supravasal forward and reverse tonifying Qi hole, control jet shower nozzle stablize two-way stepping.
The beneficial effect of patent of the present invention is: the changement comparing impact driven sprinkler, and jetting type shower nozzle commutation controlling mechanism reliability of the present invention is better, and switch steadily, little to impulsive force of turning, service life is longer; Compare self-priming jetting nozzle reverser, jetting type shower nozzle commutation controlling mechanism of the present invention gas-liquid separation is more abundant, forward and backstepping can be controlled simultaneously, make fluid jet nozzle water distribution more even, in reversal valve, insert permanent magnet simultaneously, eliminate " intermediateness " that occur when only controlling to switch by stopping means, make switching more reliable and more stable.
Accompanying drawing illustrates:
Fig. 1 is the broken section three-dimensional combination figure of the fluid jet nozzle applying jetting type shower nozzle commutation controlling mechanism of the present invention; In figure, 1. two-way gap cover plate 2. signal water pipe 3. reverse duct 4. positive conductive pipe 5. fluidic 6. commutator 7. connecting bolt 8. position block 9. jet pipe 10. bolt 11. hex nut 12. sprinkler body 13. commutates shift fork 14. lever 15. hollow shaft 16.O type circle 17. block 18. connecting bolt 19. spacing ring.
Fig. 2 is the assembly figure of jetting type shower nozzle commutation controlling mechanism of the present invention in jetting type shower nozzle.
The cross-sectional schematic of the fluidic 5 that Fig. 3 is the fluid jet nozzle shown in Fig. 1; In figure, 20. oppositely meet mouth I, and 21. signals meet mouth I, and 22. left clearance C 2,23. right end clearance C1,24. forwards meet mouth I.
Fig. 4 be the commutator 6 of jetting type shower nozzle commutation controlling mechanism of the present invention analyse and observe installation diagram; In figure, 25. commutation iron plates, 26. permanent magnets, 27. reversing valve cores, 28. commutation valve casings, 29. oppositely meet mouth II, 30. reverse tonifying Qi hole M2, and 31. signals meet mouth II, and 32. forward tonifying Qi hole M1,33. forwards meet mouth II, 34. screws, 35. bolts, 36. locating holes.
Fig. 5 is the enlarged diagram of the commutation valve casing 28 of jetting type shower nozzle commutation controlling mechanism of the present invention; In figure, 37. spool bore, 38. magnet openings.
Fig. 6 is the sectional view along A-A line direction in Fig. 5; In figure, 39. oppositely connect nozzle aperture, and 40. signals connect nozzle aperture, and 41. forwards connect nozzle aperture, 42. positioning bolt holes.
Fig. 7 is the enlarged section schematic diagram of the change-over valve core 27 shown in Fig. 4; In figure, 43. bolts hole, 44. left spool grooves, 45. right spool grooves.
Fig. 8 is the schematic diagram of the commutation shift fork 13 of jetting type shower nozzle commutation controlling mechanism of the present invention.
Detailed description of the invention
Refer to Fig. 1, the fluid jet nozzle applying jetting type shower nozzle commutation controlling mechanism of the present invention is made up of four parts such as rotary sealing mechanism, runner, fluidic, commutation controlling mechanisms.Key component of the present invention is commutation controlling mechanism, the main commutator 6 as shown in Figure 4 of this commutation controlling mechanism, stopping means (comprising the position block 8 in Fig. 1, bolt 10, hex nut 11, commutation shift fork 13, lever 14, block 17, connecting bolt 18, spacing ring 19), connect mouth (comprise in Fig. 4 oppositely meet mouth II29, signal meets mouth II31, forward meets mouth II33) conduit (comprising the signal water pipe 2 in Fig. 1 and Fig. 2, reverse duct 3, positive conductive pipe 4) four parts form.Fluid jet nozzle utilizes the attached wall principle of jet, sprinkler rotation is made under the driving of attached wall power, coordinated with the switching of commutation controlling mechanism by fluidic, change the flow direction of signal water, regulate the pressure of the jet left and right sides in fluidic, realize jet attached wall to the left or to the right, thus make shower nozzle stepping rotation to the left or to the right.
Refer to Fig. 2, two-way gap cover plate 1 is installed on fluidic 5 exit, commutator 6 is installed on fluid jet nozzle jet pipe by connecting bolt 7, signal water pipe 2, reverse duct 3, positive conductive pipe 4 connect respectively fluidic 5 and commutator 6 connect mouth, oppositely meet mouth I20 to meet mouth I24 with forward and be connected reverse duct 3 and positive conductive pipe 4 respectively, transmission of signal stream; Spacing ring 31 liang is superimposed to be enclosed within hollow shaft 15, and lever 14 is vertically fixed on by connecting bolt 18 on the block 17 on spacing ring 19, regulates the relative position between two spacing rings 31 can set distance between two levers 14; Commutation shift fork 13 is fixed on jet pipe 9 by bolt 10 and hex nut 11, and commutation shift fork 13 swings back and forth for the center of circle with bolt 10 in certain amplitude, and its end is placed between two levers 14.
Refer to Fig. 3, tonifying Qi is carried out with right end clearance 23 respectively when backstepping and forward stepping in the left gap 22 of described two-way gap cover plate 1, makes fluid jet nozzle be able to normal two-way stepping.Signal meets mouth I21 and from power stream, obtains signal water and import in the signal water pipe 2 be attached thereto, transmit to commutator 6 again, switch through commutator 6, the signal of tonifying Qi flows through reverse duct 3 or positive conductive pipe 4 meets mouth I24 transmit retroeflection fluid element 5 via oppositely connecing mouth I20 or forward, make the reverse or attached wall of forward of power stream, and then realize oppositely or forward stepping.
Refer to Fig. 4 to Fig. 7, commutator 6 adopts piston structure, and reversing valve core 27 is coaxially installed in the spool bore 37 in Fig. 5, reversing valve core 27 has left spool groove 44 and right spool groove 45.Commutation iron plate 25 is installed by screw 34 in reversing valve core 27 two ends, and commutation iron plate 25 is a circular tagger, plays sealing and positioning action.As shown in Figure 4, when right side commutation iron plate 25 is affixed on the right-hand member of commutation valve casing 28, reversing valve core 27 is positioned at limit on the left position, right spool groove 45 two ends lay respectively at signal and meet mouth II31 and forward connects center, mouth II33 hole, signal meets mouth II31 and meets mouth II33 with forward and be communicated with, oppositely connect the connection that mouth II29 and signal connect between mouth II31 to be cut off, now signal water flows into forward and connects mouth, makes the stepping of shower nozzle forward; Otherwise, when left side commutation iron plate 25 is affixed on the left end of commutation valve casing 28, reversing valve core is positioned at limit on the right-right-hand limit position, left spool groove 44 two ends lay respectively at signal and meet mouth II31 and oppositely connect center, mouth II29 hole, signal meets mouth II31 and oppositely meets mouth II29 and be communicated with, forward connects the connection that mouth II33 and signal connect between mouth II31 and is cut off, and now signal water flows into and oppositely connects mouth, makes shower nozzle backstepping.Namely in the fluid jet nozzle course of work, by control reversing valve core 27 in commutator 6 bilateral reciprocation, realize forward and the backstepping of fluid jet nozzle.In Fig. 4, permanent magnet 26 is installed in Fig. 5 the magnet opening 38 being positioned at reversal valve shell two ends, and uses bolt 35 to fix by bolt hole 42.Permanent magnet 26 can make commutation iron plate under the promotion and magneticaction of commutation shift fork 13, be able to the left or right end face being affixed on more rapidly commutation valve casing 28, make reversing valve core 27 reach left or right extreme position rapidly and accurately, thus more stably complete handoff procedure.
Connect mouth and comprise that signal meets mouth I21 and II31, forward meets mouth I24 and II33, oppositely meet mouth I20 and II29, all mouths that connects are the screwed copper pipe in two ends, play connection signal hole and conduit.
Conduit comprises signal water pipe 2, reverse duct 3, positive conductive pipe 4, and signal water pipe 2 and positive conductive pipe 4 have reverse tonifying Qi hole 30 and forward tonifying Qi hole 32.
Apply on the fluid jet nozzle of jetting type shower nozzle commutation controlling mechanism of the present invention, reverse duct 3 connects and oppositely meets mouth I20 and oppositely meet mouth II29, signal water pipe 2 connection signal meets mouth I21 and signal meets mouth II31, and positive conductive pipe 11 connects forward and meets mouth I24 and forward meets mouth II33.Commutator 6 uses connecting bolt 7 to be fixed on jet pipe 9 by locating hole 36, commutation shift fork 13 is arranged on jet head 9 by position block 8, bolt 10, hex nut 11, and commutation shift fork 13 can swing for the center of circle within the specific limits with bolt 10.Commutator 6 is placed in the middle of the bifurcated of commutation shift fork 13 front end, can promote iron plate 25 of commutating, then promote reversing valve core 27 side-to-side movement when commutation shift fork 13 swings.Spacing ring 19 center of circle superposition between two, be arranged in hollow shaft 15, lever 14 is fixed on block 17, distance between two pins 14 adjusts by the position adjusting spacing ring 19, and the tail end of commutation shift fork 13 is between two levers 14, and sprinkler rotation drives commutation shift fork 13 to rotate, when commutation shift fork 13 turns to the position of lever 14, shower nozzle is rotated further and the shift fork 13 that commutates is subject to the resistance shelves of lever 14, and opposition promotes commutation shift fork 13, and the commutation iron plate 25 promoted on commutator 6 is moved.
Sometimes because the active force of commutation shift fork 13 to commutation iron plate 25 is less, there will be in handoff procedure " intermediateness ", namely reversing valve core 27 is not in the limit on the left of high order end or the limit on the right-right-hand limit position of low order end, shower nozzle cannot normally work, therefore permanent magnet 26 is added at the two ends, left and right of commutator 6, when making reversing valve core 27 be about to reach left or right extreme position, by the interaction of permanent magnet 26 with commutation iron plate 25, make the left or right end face of the more thorough valve casing 28 of pressing close to commutate rapidly of commutation iron plate 25, thus realize left and right spool groove 44 on reversing valve core 27 more smoothly, 45 connect mouth 29 with forward and reverse signal on commutation valve casing, switching between 33.
The course of work is:
When fluid jet nozzle starts to rotate, fluidic about 5 cavity pressure is in a basic balance, and fluid jet nozzle is in direct projection state.
During forward stepping, right side commutation iron plate 25 is affixed on the right-hand member of commutation valve casing 28, reversing valve core 27 is positioned at limit on the left position, right spool groove 45 two ends lay respectively at signal and meet mouth II31 and forward connects center, mouth II33 hole, signal meets mouth II31 and meets mouth II33 with forward and be communicated with, oppositely connect the connection that mouth II29 and signal connect between mouth II31 to be cut off, connect from the signal of fluidic 5 the signal water that mouth I21 gets and meet mouth II31 by signal water pipe 2 signal flowed into commutator 6, enter forward by spool groove 45 again and meet mouth II33, signal stream meets mouth II33 from forward and flows into positive conductive pipe 4, first carry out gas-water separation by the forward tonifying Qi hole 32 in positive conductive pipe 4, mouth I24 is met again by positive conductive pipe 4 forward sent on fluidic 5, enter in the right chamber of fluidic 5.Now, a signal water part adds power stream, and a part stays vortex region, and when the current of vortex region run up to critical size, power stream is pushed to the attached wall in right side by the pressure differential in chamber, left and right, and gap, right side 23 blocks, the stepping of fluid jet nozzle forward.Now, power stream bends, and signal meets mouth I21 and comes to nothing, and no longer gets signal water, get air, chamber, left and right forms maximum pressure, and the signal water in signal water pipe 2 is found time rapidly, and air enters right chamber, recover direct projection state, gap 23, right side is opened simultaneously, so repeatedly realizes forward stepping.
Forward steps to a certain angle, lever 14 acts on commutation shift fork 13, under the effect of commutate shift fork 13 and permanent magnet 26, make commutation iron plate 25 in left side be affixed on the left end of commutation valve casing 28, reversing valve core is made to be positioned at limit on the right-right-hand limit position, left spool groove 44 two ends lay respectively at signal and meet mouth II31 and oppositely connect center, mouth II29 hole, signal meets mouth II31 and oppositely meets mouth II29 and be communicated with, and forward connects the connection that mouth II33 and signal connect between mouth II31 and is cut off.Signal water directly enters reverse signal by left spool groove 44 and meets mouth II29 and arrive fluidic 5 oppositely meets mouth I20, and the left and right cavity pressure of this fluidic 5 is in a flash suitable, and fluid jet nozzle recovers direct projection state.Through the accumulation of current, the gap 22 in left side is blocked, the pressure in right chamber is greater than left chamber, and power stream is attached wall left, promotes fluid jet nozzle backstepping, now signal meets mouth I21 and comes to nothing, no longer get signal water, and oppositely tonifying Qi hole 30 fills into air, left and right cavity pressure reduces, shower nozzle recovers direct projection state, so repeatedly realizes backstepping.Backstepping, to a certain angle, acts on commutation fork 13 by lever 14, again replys forward step state.And so forth, thus realize the positive and negative stepping of fluid jet nozzle.
Claims (3)
1. a jetting type shower nozzle commutation controlling mechanism, be applied on jetting type shower nozzle, by commutator, stopping means, connect mouth and conduit four part formation, it is characterized in that: commutator comprises commutation iron plate (25), permanent magnet (26), reversing valve core (27), commutation valve casing (28), stopping means comprises commutation shift fork (13), spacing ring (19), lever (14), connect mouth to comprise signal and meet mouth I (21) and signal meets mouth II (31), forward meets mouth I (24) and forward meets mouth II (33), oppositely meet mouth I (20) and oppositely meet mouth II (29), conduit comprises signal water pipe (2), reverse duct (3), positive conductive pipe (4), reverse duct (3) and positive conductive pipe (4) have reverse tonifying Qi hole (30) and forward tonifying Qi hole (32), commutator is placed in the middle of the bifurcated of commutation shift fork (13) front end, can promote commutation iron plate (25), then promote reversing valve core (27) side-to-side movement when commutation shift fork (13) swings, commutator, stopping means, connect mouth and conduit and cooperatively interacted the forward of shower nozzle and backstepping and switching, the position of reversing valve core (27) in commutator is controlled to realize the switching of signal current direction by stopping means, and carry out tonifying Qi and gas-water separation by the two-way gap on the cover plate of two-way gap and forward and reverse supravasal forward and reverse tonifying Qi hole, realize the running of fluid jet nozzle and two-way stepping.
2. jetting type shower nozzle commutation controlling mechanism according to claim 1, it is characterized in that: described commutator adopts piston structure, reversing valve core (27) is coaxially installed in the spool bore (37) in commutation valve casing (28), and commutation iron plate (25) is installed by screw in reversing valve core (27) two ends; The upper symmetry of reversing valve core (27) has left spool groove (44) and right spool groove (45), and reversing valve core (27) can do bilateral reciprocation in spool bore (20); When right side commutation iron plate (25) is affixed on the right-hand member of commutation valve casing (28), reversing valve core (27) is positioned at limit on the left position, right spool groove (45) two ends lay respectively at signal and connect mouth II (31) and forward and connect mouth II (33) center, hole, forward connects nozzle aperture (41) and connects nozzle aperture (40) with signal and be communicated with, and oppositely connects the connection that nozzle aperture (39) and signal connect between nozzle aperture (40) and is cut off; When left side reversible deflector (25) is affixed on the left end of commutation valve casing (28), reversing valve core (27) is positioned at limit on the right-right-hand limit position, left spool groove (44) two ends lay respectively at signal and meet mouth II (31) and oppositely connect mouth II (29) center, hole, signal meets mouth II (31) and oppositely meets mouth II (29) and be communicated with, oppositely connect nozzle aperture (39) to connect nozzle aperture (40) with signal and be communicated with, forward connects the connection that nozzle aperture (41) and signal connect between nozzle aperture (40) and is cut off.
3. jetting type shower nozzle commutation controlling mechanism according to claim 1, it is characterized in that: described permanent magnet (26) is installed on the magnet opening (38) being positioned at commutation valve casing (28) two ends, left and right, and use bolt (35) to be fixed by bolt hole (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210471944.8A CN102962149B (en) | 2012-11-21 | 2012-11-21 | Jetting type shower nozzle commutation controlling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210471944.8A CN102962149B (en) | 2012-11-21 | 2012-11-21 | Jetting type shower nozzle commutation controlling mechanism |
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| Publication Number | Publication Date |
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| CN102962149A CN102962149A (en) | 2013-03-13 |
| CN102962149B true CN102962149B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210471944.8A Expired - Fee Related CN102962149B (en) | 2012-11-21 | 2012-11-21 | Jetting type shower nozzle commutation controlling mechanism |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399612B (en) * | 2014-11-19 | 2017-02-22 | 江苏大学 | Jet type spray head double-limiting reversing mechanism |
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|---|---|---|---|---|
| SU1260030A1 (en) * | 1985-02-19 | 1986-09-30 | Всесоюзное Научно-Производственное Объединение По Механизации Орошения "Радуга" | Sprinkler |
| CN101224444A (en) * | 2007-10-26 | 2008-07-23 | 江苏大学 | Wall-attachment fluidic sprinkler |
| CN101244408A (en) * | 2008-02-26 | 2008-08-20 | 江苏大学 | Bidirectional marching type full-fluid jet spray gun |
-
2012
- 2012-11-21 CN CN201210471944.8A patent/CN102962149B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1260030A1 (en) * | 1985-02-19 | 1986-09-30 | Всесоюзное Научно-Производственное Объединение По Механизации Орошения "Радуга" | Sprinkler |
| CN101224444A (en) * | 2007-10-26 | 2008-07-23 | 江苏大学 | Wall-attachment fluidic sprinkler |
| CN101244408A (en) * | 2008-02-26 | 2008-08-20 | 江苏大学 | Bidirectional marching type full-fluid jet spray gun |
Non-Patent Citations (2)
| Title |
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| PXSB型双向步进式全射流喷头的原理及结构设计;李红等;《排灌机械》;20080930;第26卷(第5期);第59-62页 * |
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