CN2546695Y - Electric guide valve - Google Patents
Electric guide valve Download PDFInfo
- Publication number
- CN2546695Y CN2546695Y CN 02224010 CN02224010U CN2546695Y CN 2546695 Y CN2546695 Y CN 2546695Y CN 02224010 CN02224010 CN 02224010 CN 02224010 U CN02224010 U CN 02224010U CN 2546695 Y CN2546695 Y CN 2546695Y
- Authority
- CN
- China
- Prior art keywords
- valve
- rod
- driver
- valve body
- valve rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
Disclosed is an electric pilot valve composed of a valve body, a valve core, valve rod, a valve top cover, a valve bottom cover, and a valve driver. The valve driver is arranged on the valve top cover and comprises a micro motor, a decelerating mechanism, a connecting shaft, a magnetic steel, a limiting cam, and a limiting switch that are connected successively. An inner magnetic steel of the valve body is arranged on top of the valve rod which corresponds to the valve driver. The magnetic steel is driven to rotate 180 degrees by the micro motor to produce an attracting and repulsing with the inner magnetic steel on top of the valve rod. The valve rod is thereby driven to make upward and downward displacements to realize the opening and closing of a valve. The utility model has ingenious conception, reasonable design, low power consumption, good sealing, reliable operation and good technical performance.
Description
Technical field
The utility model relates to a kind of electric valve, particularly relates to the electronic pilot valve of a kind of low power consumption of using in prepay water meter, prepayment diaphragm gas meter.
Background technique
More or less there are some following defectives in present electrodynamic type valve: the drive motor consumed power is big, difficult sealing, easily leak, need the positive and negative both direction of motor to rotate the opening and closing that could realize valve, the external drive circuit complexity can not be known the state of valve, and jitter phenomenon is arranged during motor rotation, normal Open valve when no hydrodynamic pressure or hydrodynamic pressure are too small, the differential pressure aperture of valve is blocked easily or the like.
Summary of the invention
Technical problem to be solved in the utility model is: solve that existing electrodynamic type valve driving electrical consumption power is big, difficult sealing, easily leakages, external drive circuit complexity, can not know the valve opening and closing state and motor is trembled commentaries on classics, normally Open valve, the susceptible to plugging problem of valve differential pressure aperture when hydrodynamic pressure is too small, be not subjected to that hydrodynamic pressure influences, the not susceptible to plugging electronic pilot valve of differential pressure aperture and provide a kind of simple in structure, easy for installation, reliable operation, low in energy consumption, good seal, motor not to have the commentaries on classics of trembling, external drive circuit simplification, valve opening.
The technical solution adopted in the utility model is: this electronic pilot valve by valve body, spool, valve rod, valve loam cake, valve bottom, valve driver form, spool, valve rod all be installed in the valve body, valve driver is installed on the outer valve of valve body and covers, valve driver comprises micro motor, reducing gear, coupling shaft, magnet steel, limit cam, the limit switch that connects successively, and corresponding with it valve stem tip is equipped with magnet steel in the valve body.
Above-mentioned valve rod parts also include connecting rod and are installed in the valve rod tip on the connecting rod.
Above-mentioned valve hole part is installed in the lower end of valve body, include flap, epithelium, epithelium lining cup, epithelium chamber base, guide's overcurrent mechanism and cylinder type filter screen thereof, and guide's overcurrent mechanism comprises two differential pressure aperture and differential pressure aperture rubber sealing ring.
The utility model is by the magnet steel Rotate 180 degree on the micro motor for driving coupling shaft on the valve driver, produces non-contacting suction with magnet steel in the valve body of valve stem tip and scolds active force, drives the upper and lower moving displacement of valve rod, realizes the opening and closing of valve.Therefore, the utlity model has following advantage and good effect:
1, simple in structure, reliable operation is acted on simultaneously by the pressure reduction and the mutual active force of internal-external magnetic steel of fluid in valve, realizes the opening and closing of valve.
2, good airproof performance does not have and leaks, and valve driver and valve body inner fluid are isolated fully.
3, easy for installation, whole valve hole part is by disposable being installed in the valve body in valve body bottom.
4, micro motor only needs to rotate towards a direction, can realize the opening and closing of valve, has simplified the external drive circuit of valve.
5, the valve limit switch is installed, does not exist micro motor to tremble the commentaries on classics phenomenon, can know the open and-shut mode of valve simultaneously.
6, cross when low at no hydrodynamic pressure or hydrodynamic pressure, can be by the active force that repels each other of internal-external magnetic steel, by the valve rod tip with force transmission to spool with valve open.
7, guide's overcurrent mechanism filter screen is installed, can cross differential pressure aperture in the mechanism, make malfunctioning switch because of the impurity in the fluid stops up the guide.
8, the driving power consumption to micro motor is low, and driving time is short.
Description of drawings
Fig. 1 is the utility model structure sectional view.
Embodiment
Referring to Fig. 1, this electronic pilot valve is made up of valve body 10, spool, valve rod, valve loam cake 21, valve bottom 15, six parts of valve driver.Wherein the valve driver parts comprise micro motor 5, magnet steel 4, coupling shaft 3, limit cam 1, drive valve limit switch 2, close valve limit switch 22; Valve hole part comprises flap 11, epithelium 12, epithelium village cup 13, epithelium chamber base 14, with the cylinder type filter screen 19 of guide's overcurrent mechanism and guide's overcurrent mechanism of two differential pressure aperture 18,16, differential pressure aperture rubber sealing ring 17; The valve rod parts comprise the interior magnet steel 8 of the valve body of valve stem tip, connecting rod 9, the valve rod tip 20.
The whole driving mechanism of valve driver is installed in the casing, casing is installed on the valve loam cake 21, valve loam cake 21 has O-ring seal, be installed on the valve body 10 with thread connecting mode, fluid and valve driver in the valve body 10 are isolated fully, can not have influence on the micro motor 5 of valve driver and the work of other parts.The magnetic force of the magnet steel 4 in the valve driver is to see through valve loam cake 21 to start interior magnet steel 8 on the valve rod.Magnet steel 4 is driven by reduction gear 6,7 and coupling shaft 3 by micro motor and rotates.Coupling shaft 3 one ends are equipped with limit cam 1, and when magnet steel 4 rotated, limit cam 1 rotated together, valve limit switch 2 is installed out, closes valve limit switch 22 in two positions that with limit cam 1 are center symmetry 180 degree.When limit cam 1 rotation touches out valve limit switch 2, under the S utmost point of magnet steel 4 is in, produce the active force that repels each other with magnet steel in the valve body 8, promoting valve rod down is shifted, the lower end of valve rod connecting rod 9 is a cone structure, after moving down, will open valve rod the differential pressure aperture 16 in guide's overcurrent mechanism, when fluid and pressure are arranged, fluid is by A district process guide overcurrent mechanism filter screen, differential pressure aperture 18 flow to the B district, flow to C district through differential pressure aperture 16 along valve rod from the B district again, because the area of passage that flows out from differential pressure aperture 16 is greater than the area of passage that flows to from differential pressure aperture 18, so that the pressure in A district greater than the pressure in B district, under the effect of pressure, epithelium 12 is to lower recess, the drive flap moves down, and makes A district and C district straight-through, valve open.Simultaneously promote stroke that valve rod moves down greater than the stroke of the valve rod tip 20 to the flap conial vertex by the active force that repels each other of magnet steel 4 and interior magnet steel 8, when the valve rod tip 20 is displaced downwardly to the flap conial vertex, give flap 11 by valve lever pin 20 with force transmission, promoting flap 11 moves down, epithelium is recessed, make A district and C district straight-through, valve open.So effect that can be by the valve rod tip 20 at no fluid and when not having hydrodynamic pressure is with valve open.When limit cam 1 rotation touches pass valve limit switch 22, the N utmost point of magnet steel 4 is in the below, produce interattraction power with interior magnet steel 8, drive valve rod toward top offset, the conical surface of valve rod connecting rod lower end stops up differential pressure aperture 16, move on the conical surface drive flap 11 by valve rod connecting rod 9 simultaneously, the pressure in A district and B district is equated.Make between A, B district and the C district and produce pressure difference, utilize the pressure difference between A, B district and the C district.The pulling force throttle down that adds upper valve rod, and pressure big more close tight more.
The working principle of valve driver is: when needs are driven valve, external control circuit making alive signal on two electrodes of micro motor 5 by driver, driving magnet steel 4 by micro motor 5 rotates with limit cam 1, external control circuit by driver detects the state of valve limit switch 2 contacts of opening simultaneously, when detecting out the make contact of valve limit switch 2,5 stalls of control micro motor.Close the valve process and open the valve similar process, when only detecting the make contact of closing valve limit switch 22,5 stalls of control motor.
Claims (3)
1, a kind of electronic pilot valve, it is characterized in that forming by valve body, spool, valve rod, valve loam cake, valve bottom, valve driver, spool, valve rod all are installed in the valve body, valve driver is installed on the outer valve of valve body and covers, valve driver comprises micro motor, reducing gear, coupling shaft, magnet steel, limit cam, the limit switch that connects successively, and corresponding with it valve stem tip is equipped with magnet steel in the valve body.
2, electronic pilot valve according to claim 1 is characterized in that the valve rod parts also include connecting rod and are installed in the valve rod tip on the connecting rod.
3, electronic pilot valve according to claim 1, it is characterized in that valve hole part is installed in the lower end of valve body, include flap, epithelium, epithelium lining cup, epithelium chamber base, guide's overcurrent mechanism and cylinder type filter screen thereof, and guide's overcurrent mechanism comprises two differential pressure aperture and differential pressure aperture rubber sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224010 CN2546695Y (en) | 2002-05-10 | 2002-05-10 | Electric guide valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224010 CN2546695Y (en) | 2002-05-10 | 2002-05-10 | Electric guide valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2546695Y true CN2546695Y (en) | 2003-04-23 |
Family
ID=33701547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02224010 Expired - Fee Related CN2546695Y (en) | 2002-05-10 | 2002-05-10 | Electric guide valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2546695Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335153A (en) * | 2013-07-29 | 2013-10-02 | 衢州昀睿工业设计有限公司 | Downstream closed type solenoid valve |
| CN103363126A (en) * | 2013-07-30 | 2013-10-23 | 衢州昀睿工业设计有限公司 | Self-retaining solenoid valve |
| CN103411016A (en) * | 2013-07-31 | 2013-11-27 | 衢州昀睿工业设计有限公司 | Permanent-magnet maintaining-type electromagnetic valve |
| CN106015632A (en) * | 2016-08-04 | 2016-10-12 | 苏州科迪流体控制设备有限公司 | Totally enclosed type magnetic double-adjustment diaphragm valve |
| CN106090399A (en) * | 2016-08-30 | 2016-11-09 | 苏州科迪流体控制设备有限公司 | Adjustable electromagnetic direct-acting valve |
| CN107035883A (en) * | 2017-06-09 | 2017-08-11 | 浙江万龙机械有限公司 | A kind of valve magnet steel on-off structure |
-
2002
- 2002-05-10 CN CN 02224010 patent/CN2546695Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335153A (en) * | 2013-07-29 | 2013-10-02 | 衢州昀睿工业设计有限公司 | Downstream closed type solenoid valve |
| CN103363126A (en) * | 2013-07-30 | 2013-10-23 | 衢州昀睿工业设计有限公司 | Self-retaining solenoid valve |
| CN103411016A (en) * | 2013-07-31 | 2013-11-27 | 衢州昀睿工业设计有限公司 | Permanent-magnet maintaining-type electromagnetic valve |
| CN106015632A (en) * | 2016-08-04 | 2016-10-12 | 苏州科迪流体控制设备有限公司 | Totally enclosed type magnetic double-adjustment diaphragm valve |
| CN106090399A (en) * | 2016-08-30 | 2016-11-09 | 苏州科迪流体控制设备有限公司 | Adjustable electromagnetic direct-acting valve |
| CN107035883A (en) * | 2017-06-09 | 2017-08-11 | 浙江万龙机械有限公司 | A kind of valve magnet steel on-off structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |