CN1545832A - Liquamatic piston type fertilization pump - Google Patents
Liquamatic piston type fertilization pump Download PDFInfo
- Publication number
- CN1545832A CN1545832A CNA2003101168961A CN200310116896A CN1545832A CN 1545832 A CN1545832 A CN 1545832A CN A2003101168961 A CNA2003101168961 A CN A2003101168961A CN 200310116896 A CN200310116896 A CN 200310116896A CN 1545832 A CN1545832 A CN 1545832A
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- chamber
- driven plunger
- reversing piston
- piston
- reversing
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Abstract
A waterpower actuated piston type fertilizer application pump, wherein a piston is arranged in the outer casing, the inner chamber of the activation piston is provided with a reversing piston jacket for accommodating a reversing piston, the reversing piston rod is provided with a movable sealing ring. By using load water as the driving power, the activation piston and the reversing piston are pushed to reciprocate, thus opening the fertilizer suction pipe and injection pipe alternatively, and realizing fertilizer suction and fertilizer injection.
Description
Technical field
The present invention relates to a kind of field irrigation equipment, be specifically related to a kind of hydro powered piston type fertilizing pump of when giving crop irrigation, giving crop fertilization.
Background technology
Along with the extensive use of micro irrigation technology in irrigation, great revolution has taken place in fertilizer practice, dissolved fertilizer is admitted to water transfer pipe network (and being diluted by irrigation water) with the form of solution by special utensil in pipe network, give crop fertilization when giving crop irrigation.Therefore, fertilizing equipment has become the indispensable building block of irrigation system.
Existing in irrigation system employed fertilizing equipment comprise a fertilizer spreading tank, this fertilizer spreading tank and irrigation conduit are connected in parallel by arm, and the fertilizer of solution state is housed in the fertilizer spreading tank.When the irrigation water that comes from the upstream flows irrigation conduit, wherein have sub-fraction to flow into fertilizer spreading tank by arm, the irrigation water of inflow flows out from another arm with solution fertilizer again, enters the slight irrigation pipe network system and flows into the farmland.The shortcoming of existing fertilizing equipment is: 1. energy consumption is big, can enter pipe network for making water and fertilizer in the fertilizer spreading tank, needs the valve of irrigation conduit is turned down, and to form the pressure differential of valve front and back water, this has just caused the loss of flood peak, has increased energy consumption; 2. fertilizer loss is arranged,, make a jar interior fertilizer concentration reduce (but can not reduce to zero) gradually because along with water constantly enters fertilizer spreading tank and fertilizer constantly flows into irrigation conduit; 3. owing in the fertilizer spreading tank pressure is arranged, need with cover and fastener it to be covered completely, this just makes troubles to adding fertile operation, uses inconvenience; 4. volume is big, heaviness.
Summary of the invention
Big in order to overcome existing fertilizing equipment energy consumption, fertilizer loss is arranged, awkward deficiency the invention provides a kind of hydro powered piston type fertilizing pump, and this fertilizing pump is simple in structure, and is easy to use, reliable, and pipe network system can not produce the loss of flood peak.
The technical solution adopted for the present invention to solve the technical problems is as follows:
A kind of hydro powered piston type fertilizing pump, it comprises shell, bonnet, driven plunger, reversing piston cover, reversing piston, movable sealing circle and reversing piston alignment pin, described driven plunger is installed in the enclosure, one end of this driven plunger is the radial orders ladder type to the other end and successively decreases, form big end, middle-end and small end, a fixedly connected reversing piston cover in the cavity of the big end of driven plunger does not produce relative motion between this driven plunger and the reversing piston cover; In the cavity of this reversing piston cover, a reversing piston is housed, on the piston rod of the reversing piston of the big end place of driven plunger correspondence, a movable sealing circle H is housed, one reversing piston alignment pin is housed at the other end of reversing piston; Shell one end in the big end of driven plunger place correspondence is equipped with bonnet; All have a radial direction through hole at the big end of driven plunger and the same position and the corresponding case surface of reversing piston cover, this through hole is the working water import, is entered in the cavity between shell and driven plunger and shell and the bonnet by this hole from the working water in the irrigation pipeline; On driven plunger, reversing piston cover and reversing piston, be provided with the mechanism that driven plunger and reversing piston are moved back and forth; On the shell of driven plunger small end place correspondence, be respectively equipped with and in fertilizer tank, inhale fertile fertilzer sucking pipe road and annotate the fertile injection tube road that enters the irrigation pipeline system; On the surface of reversing piston outer end, have and abandon water outlet P.
Describedly make mechanism that driven plunger and reversing piston move back and forth for to hold to being provided with A, B, three chambers of C between the small end the big of shell and driven plunger, put at reversing piston two groups of corresponding runners are set, one group for to introduce the water inlet flow channel in A chamber with working water, and another group will be for abandoning the outlet passage that water is discharged from the A chamber; Be positioned at the big end of driven plunger at water inlet flow channel and outlet passage and have inlet opening I and apopore O near an end of middle-end, inlet opening I and apopore O shift to install, not on same sagittal plane; Be provided with two circles and protrude from the water shutoff platform of piston rod on described reversing piston, when the water shutoff platform of reversing piston is in I position, inlet opening in the reversing piston cover, when inlet opening I was closed, apopore O opened, and vice versa.
In described injection tube road, check valve Z is housed, in described fertilzer sucking pipe road, check valve X is housed.
The present invention is a power with the working water that enters from pipe network system, the mechanism urges piston motion of passing through to be provided with that driven plunger and reversing piston are moved back and forth, when reversing piston moves to when making the water shutoff platform seal the inlet opening I that reversing piston puts, inlet opening I is closed, apopore O opens, working water can not enter the A chamber, the A cavity pressure of big end is reduced to and approaches zero, and driven plunger moves to big end, and annotate fertile check valve Z and close this moment, the C chamber produces negative pressure, inhale fertile check valve X and open, fertilizer is sucked the C chamber, reversing piston and movable sealing circle H push simultaneously, promoting reversing piston moves round about, its water shutoff platform is sealed the apopore O that reversing piston puts, and inlet opening I is opened, and working flow is to the A chamber, the pressure in A chamber increases, driven plunger is moved to middle-end, annotate fertile check valve Z and be opened, inhale fertile check valve X and close, fertilizer is injected irrigation conduit, apply in the farmland together in company with the irrigation water in the pipe network system.
The invention has the beneficial effects as follows:
1, no head loss does not increase energy consumption
The present invention is to be power with the working water, utilize the pressure in A chamber and C chamber to change, it is reciprocating to promote driven plunger and reversing piston, suction fertilizer and injection tube road are alternately opened, realize to inhale fertile and annotate fertilely, thereby produce pressure differential in needn't tube net system and annotate fertilizer, make that the pressure of water remains unanimity in the irrigation conduit, no head loss, thus can not increase energy consumption.
2, no fertilizer loss
Fertilizer injects pipe network system separately among the present invention, and discord enters the working water of the pump housing mixes, thereby does not have fertilizer loss.
3, simple in structure, easy to use
The present invention is simple in structure, and volume is small and light.Owing to the fertilizer in the fertilizer tank is to inject by the pressure variation in C chamber, itself does not have pressure, thereby fertilizer tank can be uncovered, makes to add fertilizer easily, and is easy to use.
Description of drawings
Fig. 1 is vertical cross-sectional schematic of hydro powered piston type fertilizing pump of the present invention
Fig. 2 is the longitudinal sectional view of shell among Fig. 1
Fig. 3 is the longitudinal sectional view of driven plunger among Fig. 1
Fig. 4 is the longitudinal sectional view of reversing piston cover among Fig. 1
Fig. 5 is the longitudinal sectional view of reversing piston among Fig. 1
Fig. 6 is among the operation principle schematic diagram figure of fertilizing pump of the present invention, and 1. shell 2. driven plunger 3. bonnets 4. movable sealing circle H 5. reversing pistons overlap 6. reversing pistons, 7. reversing piston alignment pins, 8. working water imports, 9. inlet opening I, 10. apopore O 11. and abandon water outlet P 12. portings 13. and inhale fertile mouthful of 14. fertilizer injeciton openings, 15. large end 16. middle-ends 17. small ends 18. large end seal groove 19. middle-end seal grooves 20. small end seal grooves 21. water inlet flow channels 22. outlet passages 23. and abandon water inlet 24. water shutoff platforms 25. and abandon water flow passage 26. and inhale 32.C chamber, 31.B chamber, 30.A chamber, 29. injection tube road, the fertile check valve Z 28. fertilzer sucking pipe roads of fertile check valve X 27. notes
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Figure 1 shows that an embodiment of hydro powered piston type fertilizing pump of the present invention, in the shell 1 of this fertilizing pump driven plunger 2 is housed, the diameter of driven plunger 2 is staged from left end to right-hand member and successively decreases among Fig. 1, forms big end 15, middle-end 16 and small end 17.At the big end 15 of shell 1 and driven plunger 2 to being provided with A chamber 30,32 3 chambers in B chamber 31 and C chamber between the small end 17.In the cavity of driven plunger 2 big ends 15, connect reversing piston cover 5, do not produce relative motion between this driven plunger 2 and the reversing piston cover 5 by being tightly fixed.In the cavity of reversing piston cover 5, a reversing piston 6 is housed.On the piston rod of the reversing piston 6 of the big end 15 place correspondences of driven plunger, a movable sealing circle H4 is housed, a reversing piston alignment pin 7 is housed, when mobile, deviate to prevent reversing piston at the other end of reversing piston 6.Shell 1 one ends in the big end 15 place correspondences of driven plunger are equipped with bonnet 3.All have a radial direction through hole at the big end 15 of driven plunger and the same position and corresponding shell 1 surface of reversing piston cover 5, this through hole is working water import 8, is entered in the A chamber 30 between shell 1 and driven plunger 2 and shell 1 and the bonnet 3 by this hole from the working water in the irrigation pipeline.On driven plunger 3, reversing piston cover 5 and reversing piston 6, be provided with the mechanism that driven plunger 2 and reversing piston 6 are moved back and forth.This mechanism such as Fig. 1, Fig. 3, Fig. 4, shown in Figure 5, on reversing piston cover 5 two groups of corresponding runners being set, one group for to introduce the water inlet flow channel 21 in A chamber 30 with working water, and another group will be for abandoning the outlet passage 22 of water discharge from A chamber 30; Be positioned at driven plunger 2 big ends at water inlet flow channel 21 and outlet passage 22 and have inlet opening I9 and apopore O10 near ends of middle-end, inlet opening I9 and apopore O10 shift to install, not on same sagittal plane; Be provided with two circles and protrude from the water shutoff platform 24 of piston rod on described reversing piston 6, when the water shutoff platform 24 of reversing piston 6 is in I9 position, inlet opening in reversing piston cover 5, when inlet opening I9 was closed, apopore O10 opened, and vice versa.
On the shell 1 of driven plunger 2 small end place correspondences, be respectively equipped with and in fertilizer tank, inhale fertile fertilzer sucking pipe road 28 and annotate the fertile injection tube road 29 that enters the irrigation pipeline system.In injection tube road 29, be equipped with and annotate fertile check valve Z27, in the fertilzer sucking pipe road, be equipped with and inhale fertile check valve X26.
Be provided with at the inner chamber of reversing piston 6 and abandon water flow passage 25, this inner of abandoning water flow passage 25 has abandons water inlet 23, and the outer end face that is positioned at the other end has abandons water outlet P11.
Reversing piston 6 and reversing piston cover 5 are core components of fertilizing pump of the present invention, and the motion of driven plunger 2 (comprising the direction of motion and stroke etc.) is fully by reversing piston 6 controls.The present invention has following characteristics about the design of reversing piston 6 and reversing piston cover 5:
1. it is inboard that reversing piston cover 5 is installed in driven plunger 2 big ends, combines closely mutually, do not produce relative motion.On the reversing piston cover 5 two groups of runners are set, respectively working flow is introduced the A chamber 30 that is surrounded by shell 1 and driven plunger 2, or will abandon water (water of end-of-job) from A chamber 30 and discharge, the current that promptly pass in and out A chamber 30 are one-way flow in runner separately, and inlet opening I9 and apopore O10 also shift to install respectively;
2. reversing piston 6 cooperates with reversing piston cover 5, guarantees inlet opening I9 and apopore O10 when fertilizing pump driven plunger 2 is not moved or in certain one stroke of driven plunger 2, and when one of them was in normally off, another was in the state of often opening; When driven plunger 2 when the trip closes to an end, reversing piston 6 produces relative motions with reversing piston cover 5, makes the unlatching of closing originally among inlet opening I9 and the apopore O10, original closing of unlatching, driven plunger 2 also enters another stroke thereupon.During design, the distance L in the inlet opening I9 outside to the apopore O10 outside among Fig. 4
1Width L greater than water shutoff platform 24 among Fig. 5
2Thereby, guarantee working water or flow into A chamber 30, maybe will abandon water 30 discharges from the A chamber, guarantee that fertilizing pump can not start or the Halfway Stopping operation.
Inlet opening I9 and apopore O10 to close or open be passive, its action is taken place by the motion and the movable sealing circle H4 acting in conjunction of driven plunger 2 fully, and inlet opening I9 and apopore O10 close or open the direction of motion and the stroke of then controlling driven plunger 2 conversely.
Driven plunger 2 is to inhale fertile, as to annotate fertilizer workpiece.As shown in Figure 3, the sealing ring that big end seal groove 18 neutralization that is contained in the big end of driven plunger among the present invention is contained in the middle-end seal groove 19 of middle-end is " [" font, and these two sealing rings are put relatively, the sealing ring that is contained in the small end seal groove 20 of small end then is designed to " worker " font, guarantee that it all can keep good sealing at fertile stroke of suction and the fertile stroke of notes, prevent that air enters C chamber 32 by B chamber 31 when inhaling fertile stroke, improve the efficient of fertilizing pump.
Shell 1 cooperates with driven plunger 2, surrounds three chambers, and wherein C chamber 32 and A chamber 30 are working chamber.Among the present invention, shell 1 design has following characteristics:
1. as shown in Figure 1 and Figure 2, set up port 12 by B chamber 31 1 sides, keep B chamber 31 inner air pressures consistent with external atmospheric pressure at the intersection in B chamber 31 and C chamber 32.B chamber 31 is the chambers that do not have fluid exchange, inhale fertile stroke and annotating fertile stroke, the volume-variation in B chamber 31 is bigger, and not as the intake-outlet in C chamber 32, A chamber 30, if do not establish port, inhale fertile stroke and annotate fertile stroke all can produce one with the opposite power of driven plunger 2 traffic directions, cause the fertilizing pump decrease in efficiency.
2. as shown in Figure 2, the terminal short tube that connects with C chamber 32 that connects in the C chamber 32 of shell, when the internal diameter of this short tube during less than C chamber internal diameter, short tube and C chamber are set for the eccentric, be the center line decentraction in short tube center line and C chamber, the upside of short tube and C chamber upside are on the same horizontal line; When the internal diameter of short tube was identical with C chamber internal diameter, this short tube was the extension in C chamber.The purpose of doing like this is in order to drain the air in the C chamber 32, to improve the efficient of fertilizing pump.
3. as shown in Figure 2, be provided with on described short tube and inhale fertile mouthful 13 and fertilizer injeciton opening 14, wherein inhale fertile mouthful 13 vertically downward, fertilizer injeciton opening 14 vertically upward; Inhale fertile mouthful 13 and link to each other with fertilzer sucking pipe road 28, fertilizer injeciton opening 14 links to each other with injection tube road 29, with the keying that helps check valve and the air in the eliminating C chamber.
The present invention has designed movable sealing circle H4.Fertilizing pump is high to the concentricity requirement between each parts, and the setting of movable sealing circle H4 has reduced concentricity requirement mutual between each parts, and guarantees that there is good sealing at the position that seal, can improve yield rate, reduces manufacturing cost.
The operation principle of fertilizing pump of the present invention and the course of work are as shown in Figure 6.When fertilizing pump moves, A chamber 30 is full of working water all the time, C chamber 32 is full of solution fertilizer (pressure of working water and solution fertilizer is in cyclically-varying) all the time, and 31 in B chamber and ambient atmosphere are connected, and keeps and the same pressure of ambient atmosphere by porting 12 all the time.
The operation of fertilizing pump of the present invention divides two strokes, finishes and inhales fertile and the fertile process of notes.
1. inhale fertile stroke
When pressure water in the pipe network system (or claim working water or drive water) input fertilizing pump, if just in time being in inlet opening I9 in reversing piston cover 5, reversing piston 6 closes, the position that apopore O10 opens, then working flow can not enter A chamber 30, effect of water pressure is in the right side of driven plunger 2 big ends and the left side of middle-end, water pressure left is greater than to the right water pressure, so driven plunger 2 is to left movement, water in the A chamber 30 is under the effect of extruding force simultaneously, outlet passage 22, apopore O10 on reversing piston cover 5 discharge through reversing piston 6 again; In the process that driven plunger 2 moves to left, to annotate fertile check valve Z27 and close, C chamber 32 produces negative pressure, inhales fertile check valve X26 and opens, and fertilizer is inhaled into C chamber 32.Before inhaling fertile stroke end of a period, reversing piston 6 pushes with movable sealing circle H4, produces relative motions with reversing piston cover 5, and inlet opening I9 is opened, and apopore O10 is closed.
2. annotate fertile stroke
After inlet opening I9 is opened, the water inlet flow channel 21 of working flow on reversing piston 6, inlet opening I9 and reversing piston cover 5 flows to A chamber 30, this moment, effect of water pressure was in the both sides of driven plunger 2 big ends, because its left side is subjected to the hydraulic pressure active area to be subjected to hydraulic pressure active area and driven plunger small end to be subjected to hydraulic pressure active area sum greater than the right side, so driven plunger 2 right laterals.Annotate fertile check valve Z27 and be opened this moment, inhales fertile check valve X26 and be closed, and the fertilizer in the C chamber 32 is injected into hydraulic pipeline.When the fertile stroke of notes closes to an end, the water outlet P11 that abandons of reversing piston 6 left ends progresses into movable sealing circle H4, water in the reversing piston 6 can not smooth and easyly be discharged, produce a thrust (and this moment driven plunger 2 still at right lateral) left, reversing piston 6 produces relative motion with reversing piston cover 5, inlet opening I9 is closed, and apopore O10 opens, and fertilizing pump enters again inhales fertile stroke.So circulation, fertilizing pump of the present invention injects pipe network system from fertilizer tank with the form of stepping continuously with fertilizer.
Claims (8)
1, a kind of hydro powered piston type fertilizing pump, it is characterized in that: it comprises shell, bonnet, driven plunger, reversing piston cover, reversing piston, movable sealing circle and reversing piston alignment pin, described driven plunger is installed in the enclosure, one end of this driven plunger is the radial orders ladder type to the other end and successively decreases, form big end, middle-end and small end, a fixedly connected reversing piston cover in the cavity of the big end of driven plunger does not produce relative motion between this driven plunger and the reversing piston cover; In the cavity of this reversing piston cover, a reversing piston is housed, on the piston rod of the reversing piston of the big end place of driven plunger correspondence, a movable sealing circle H is housed, one reversing piston alignment pin is housed at the other end of reversing piston; Shell one end in the big end of driven plunger place correspondence is equipped with bonnet; All have a radial direction through hole at the big end of driven plunger and the same position and the corresponding case surface of reversing piston cover, this through hole is the working water import, is entered in the cavity between shell and driven plunger and shell and the bonnet by this hole from the working water in the irrigation pipeline; On driven plunger, reversing piston cover and reversing piston, be provided with the mechanism that driven plunger and reversing piston are moved back and forth; On the shell of driven plunger small end place correspondence, be respectively equipped with and in fertilizer tank, inhale fertile fertilzer sucking pipe road and annotate the fertile injection tube road that enters the irrigation pipeline system; On the surface of reversing piston outer end, have and abandon water outlet P.
2, hydro powered piston type fertilizing pump according to claim 1, it is characterized in that: describedly make mechanism that driven plunger and reversing piston move back and forth for to hold to being provided with A, B, three chambers of C between the small end the big of shell and driven plunger, put at reversing piston two groups of corresponding runners are set, one group for to introduce the water inlet flow channel in A chamber with working water, and another group will be for abandoning the outlet passage that water is discharged from the A chamber; Be positioned at the big end of driven plunger at water inlet flow channel and outlet passage and have inlet opening I and apopore O near an end of middle-end, inlet opening I and apopore O shift to install, not on same sagittal plane; Be provided with two circles and protrude from the water shutoff platform of piston rod on described reversing piston, when the water shutoff platform of reversing piston is in I position, inlet opening in the reversing piston cover, when inlet opening I was closed, apopore O opened, and vice versa.
3, hydro powered piston type fertilizing pump according to claim 2 is characterized in that: the distance L in the described inlet opening I outside to the apopore O outside
1Width L greater than the water shutoff platform
2
4, hydro powered piston type fertilizing pump according to claim 1 is characterized in that: the sealing ring that big end of described driven plunger and middle-end are equipped with is " [" font, and these two sealing rings are relatively put; Be " worker " font at the sealing ring that small end was equipped with.
5, hydro powered piston type fertilizing pump according to claim 2 is characterized in that: the intersection in described B chamber and C chamber has port by on the shell of B chamber one side.
6, hydro powered piston type fertilizing pump according to claim 2, it is characterized in that: the short tube that connects in terminal connection one in the C chamber of shell and C chamber, when the internal diameter of this short tube during less than C chamber internal diameter, short tube and C chamber are set for the eccentric, be the center line decentraction in short tube center line and C chamber, the upside of short tube and C chamber upside are on the same horizontal line; When the internal diameter of short tube was identical with C chamber internal diameter, this short tube was the extension in C chamber.
7, hydro powered piston type fertilizing pump according to claim 6 is characterized in that: on described short tube, be provided with and inhale fertile mouthful and fertilizer injeciton opening, one of them vertically downward, another is vertically upward; Inhale fertile mouthful and link to each other with the fertilzer sucking pipe road, fertilizer injeciton opening links to each other with the injection tube road.
8, hydro powered piston type fertilizing pump according to claim 1 is characterized in that: in described injection tube road check valve Z is housed, in described fertilzer sucking pipe road check valve X is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310116896 CN1274196C (en) | 2003-12-03 | 2003-12-03 | Liquamatic piston type fertilization pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310116896 CN1274196C (en) | 2003-12-03 | 2003-12-03 | Liquamatic piston type fertilization pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1545832A true CN1545832A (en) | 2004-11-17 |
| CN1274196C CN1274196C (en) | 2006-09-13 |
Family
ID=34337657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310116896 Expired - Fee Related CN1274196C (en) | 2003-12-03 | 2003-12-03 | Liquamatic piston type fertilization pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1274196C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103210735A (en) * | 2013-05-16 | 2013-07-24 | 东北农业大学 | Rotor type liquid fertilizer applying channel shifting device |
| CN103210734A (en) * | 2013-05-16 | 2013-07-24 | 东北农业大学 | Sealing ring type liquid fertilizer applying channel shifting device |
| CN103352877A (en) * | 2013-04-09 | 2013-10-16 | 江苏大学 | Jet flow fertilizer pump of spring water draining device |
| CN104521406A (en) * | 2015-01-17 | 2015-04-22 | 东北农业大学 | Plunger roller type liquid fertilizer distributor |
| CN104982136A (en) * | 2015-06-16 | 2015-10-21 | 上海华维节水灌溉有限公司 | Piston type fertilizer sucking and chemical feeding device achieving accurate proportion adjustment function and fertilizer sucking and chemical feeding method |
| CN105265084A (en) * | 2015-11-13 | 2016-01-27 | 江苏大学 | Hydraulically-driven proportion-fixed fertilizer applying pump |
| CN107852929A (en) * | 2017-12-08 | 2018-03-30 | 中国水利水电科学研究院 | A kind of hydrodynamic(al) wrench of a force system notes fertile pump |
| CN108040572A (en) * | 2017-12-26 | 2018-05-18 | 华南农业大学 | Single lever-type hydro powered fertilizer apparatus |
| CN108184402A (en) * | 2017-12-26 | 2018-06-22 | 华南农业大学 | Double rod type hydro powered fertilizer apparatus |
-
2003
- 2003-12-03 CN CN 200310116896 patent/CN1274196C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352877A (en) * | 2013-04-09 | 2013-10-16 | 江苏大学 | Jet flow fertilizer pump of spring water draining device |
| CN103352877B (en) * | 2013-04-09 | 2015-12-09 | 江苏大学 | A kind of spring drainage means jet-flow fertilizing pump |
| CN103210735A (en) * | 2013-05-16 | 2013-07-24 | 东北农业大学 | Rotor type liquid fertilizer applying channel shifting device |
| CN103210734A (en) * | 2013-05-16 | 2013-07-24 | 东北农业大学 | Sealing ring type liquid fertilizer applying channel shifting device |
| CN104521406A (en) * | 2015-01-17 | 2015-04-22 | 东北农业大学 | Plunger roller type liquid fertilizer distributor |
| CN104982136A (en) * | 2015-06-16 | 2015-10-21 | 上海华维节水灌溉有限公司 | Piston type fertilizer sucking and chemical feeding device achieving accurate proportion adjustment function and fertilizer sucking and chemical feeding method |
| CN105265084A (en) * | 2015-11-13 | 2016-01-27 | 江苏大学 | Hydraulically-driven proportion-fixed fertilizer applying pump |
| CN107852929A (en) * | 2017-12-08 | 2018-03-30 | 中国水利水电科学研究院 | A kind of hydrodynamic(al) wrench of a force system notes fertile pump |
| CN108040572A (en) * | 2017-12-26 | 2018-05-18 | 华南农业大学 | Single lever-type hydro powered fertilizer apparatus |
| CN108184402A (en) * | 2017-12-26 | 2018-06-22 | 华南农业大学 | Double rod type hydro powered fertilizer apparatus |
| CN108040572B (en) * | 2017-12-26 | 2019-09-10 | 华南农业大学 | Single lever-type hydro powered fertilizer apparatus |
| CN108184402B (en) * | 2017-12-26 | 2019-09-10 | 华南农业大学 | Double rod type hydro powered fertilizer apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1274196C (en) | 2006-09-13 |
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Granted publication date: 20060913 Termination date: 20131203 |