CN204403517U - A kind of solenoid valve - Google Patents
A kind of solenoid valve Download PDFInfo
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- CN204403517U CN204403517U CN201420798763.0U CN201420798763U CN204403517U CN 204403517 U CN204403517 U CN 204403517U CN 201420798763 U CN201420798763 U CN 201420798763U CN 204403517 U CN204403517 U CN 204403517U
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Abstract
The utility model discloses a kind of solenoid valve, wherein a kind of technological scheme is provided with for carrying out spacing limit stoper to main valve stem, described limit stoper comprises secondary solenoid valve, described secondary solenoid valve is horizontally installed in the lower end of main electromagnetic valve, this secondary solenoid valve comprises secondary coil, secondary movable core, auxiliary spring, auxiliary valve rod, secondary movable core is arranged in secondary coil, and secondary movable core right-hand member is connected with auxiliary spring, and secondary movable core left end is connected with auxiliary valve rod; Described auxiliary valve rod and main valve stem are kept out mutually and are coordinated, after main valve stem rises, described auxiliary valve rod is extended withstands main valve stem lower end, prevents main valve stem from resetting after main coil power-off downwards, and auxiliary valve rod is subject to the pressure of main valve stem, after secondary coil power-off, still the state of stretching out can be kept.The utility model structure is simple, cost is lower, be convenient to automatic control, reliability is high, excellent in stability, safeguards open or close working state after opening and closing without the need to electric current.
Description
Technical field
The utility model relates to technical field of industrial equipment, particularly a kind of solenoid valve.
Background technique
Solenoid valve (Electromagnetic valve) is the industry equipment by Electromagnetic Control, is used to the automation foundation element controlling fluid, belongs to final controlling element, is not limited to hydraulic pressure, pneumatic.Be used in industrial control system adjust medium direction, flow, speed and other parameter.Solenoid valve can coordinate different circuit to realize the control of expection, and the precision controlled and flexibility can both ensure.Solenoid valve has a variety of, and different solenoid valves plays a role at the diverse location of control system, and the most frequently used is one-way valve, safety valve, position control valve, speed-regulating valve etc.
At present, solenoid valve together retrain by traditional working principle, after being activated, control circuit must to the continual power supply of the actuating coil of solenoid valve, not only consume a large amount of electric energy, also produce Hum and Noise, coil heating, easily burn, affect working life, and produce serious electromagnetic pollution, when voltage changes, there is corresponding change in electromagnetic field, causes that spool is shaken, action accuracy rate is low, poor stability; And due to coil operationally, by a large amount of electric currents, coil temperature is high, can not seal, and causes moistureproof and waterproof poor, very easily causes again short circuit to burn, therefore has exacting terms requirement to working environment.
Chinese patent 00263752.9 discloses a kind of energy saving environmental protection solenoid valve, one end of spool is provided with permanent magnet, makes spool polarization, and produce homopolar-repulsion with permanent magnet when applying impulsive current to coil, forward and reverse motion that heteropole is attracting is also locked, realizes carrying out maintenance work without electric current.But this project organization is complicated, raw materials consumption is large, and manufacture cost is higher, and is not easy to automatic control, and reliability is poor.
Chinese patent 91220744.2 discloses a kind of long life energy saving electromanetic valve, this solenoid valve designs serrated slot in a row in the middle part of the valve rod of main electromagnetic valve, sawtooth end is designed at the valve stem end of secondary solenoid valve, by the cooperation of the valve rod serrated slot of main electromagnetic valve and the valve rod sawtooth end of secondary solenoid valve, realize without electric current to safeguard electromagnetic valve work.But above-mentioned solenoid valve has following disappearance: after one, main valve stem side serrated slot, the edge of acute angle of serrated slot easily forms surface friction drag with sidewall, affects the flexibility of main valve stem rising and decline; Easily accumulate impurity in the serrated slot of two, main valve stem, affect coordinating of main valve stem and auxiliary valve rod; Three, the serrated slot of main valve stem only can be arranged at the side of main valve stem, and cause the center of gravity of main valve stem seriously to the side skew not arranging serrated slot, after permanent use, its solenoid valve reliability and stability will worse and worse.
Model utility content
The technical problems to be solved in the utility model is for above-mentioned deficiency of the prior art, there is provided that a kind of structure is simple, cost is lower, be convenient to automatic control, reliability is high, excellent in stability, after opening and closing, safeguard the solenoid valve opened or close working state without the need to electric current.
For solving the problems of the technologies described above, first technological scheme of the present utility model is: a kind of solenoid valve, and comprise main coil, main movable core, main spring, main valve stem, main movable core is arranged in main coil, main movable core upper end is connected with main spring, and main movable core lower end is connected with main valve stem; Described main valve stem lower end is provided with for carrying out spacing limit stoper to main valve stem, described limit stoper comprises secondary solenoid valve, described secondary solenoid valve is horizontally installed in the lower end of main electromagnetic valve, this secondary solenoid valve comprises secondary coil, secondary movable core, auxiliary spring, auxiliary valve rod, secondary movable core is arranged in secondary coil, secondary movable core right-hand member is connected with auxiliary spring, and secondary movable core left end is connected with auxiliary valve rod; Described auxiliary valve rod and main valve stem are kept out mutually and are coordinated, after main valve stem rises, described auxiliary valve rod is extended withstands main valve stem lower end, prevents main valve stem from resetting after main coil power-off downwards, and auxiliary valve rod is subject to the pressure of main valve stem, after secondary coil power-off, still the state of stretching out can be kept.
Described main valve stem is provided with plug, and this plug is positioned at main valve stem lower end, after main valve stem rises, and the extended plug lower end withstanding main valve stem of described auxiliary valve rod.
For solving the problems of the technologies described above, second technological scheme of the present utility model is: a kind of solenoid valve, and comprise main coil, main movable core, main spring, main valve stem, main movable core is arranged in main coil, main movable core upper end is connected with main spring, and main movable core lower end is connected with main valve stem; Described main valve stem lower end is provided with for carrying out spacing limit stoper to main valve stem, and described limit stoper comprises the groove of the side being positioned at main valve stem and the elastic mechanism corresponding with groove, and this elastic mechanism elasticity presses on main valve stem side; After main valve stem rises, the front end of this elastic mechanism can fall in groove, prevents main valve stem from resetting after main coil power-off downwards; When main valve stem is for declining, the front end of elastic mechanism can indentation to the back-end, so that the front end of elastic mechanism is shifted out from groove, main valve stem is declined.
Described groove is circular groove, and described elastic mechanism is provided with at least two, and evenly distributed around the circular groove of main valve stem, and the front end of this elastic mechanism is steel ball, and rear end is electromagnet, is connected between steel ball with electromagnet by spring; During electromagnet no electric circuit, steel ball is under spring force effect, and form elasticity to main valve stem side and compress power, during electromagnet energising, steel ball, under attractive force of electro-magnet, overcomes spring tension backward indent.
The beneficial effects of the utility model are: one, the utility model are by arranging limit stoper in main valve stem lower end, realize solenoid valve function without the need to electric current maintenance after opening and closing, structure is simple, cost is lower, be convenient to automatic control, solenoid valve is not easy heating, receive the order longer, produce electromagnetic interference few; Two, in the middle part of the utility model main valve stem without the need to designing serrated slot, what avoid main valve stem and auxiliary valve rod in prior art coordinates smooth problem; Three, the utility model is after arranging limit stoper, can keep the gravity balance of main valve stem, makes solenoid valve after long-time use, still can keep good reliability and stability.
Accompanying drawing explanation
Fig. 1 is the overall structure longitudinal section of the utility model solenoid valve one preferred embodiment.
Fig. 2 is solenoid valve opening process phase diagram in Fig. 1.
Fig. 3 is closed electromagnetic valve process status figure in Fig. 1.
Fig. 4 is the overall structure longitudinal section of another preferred embodiment of the utility model solenoid valve.
Fig. 5 is the partial enlarged drawing of part A in Fig. 4.
Fig. 6 is solenoid valve opening state figure in Fig. 4.
Fig. 7 is the partial enlarged drawing of part B in Fig. 6.
In figure: main coil 1, main movable core 2, main spring 3, main valve stem 4; Secondary coil 5, secondary movable core 6, auxiliary spring 7, auxiliary valve rod 8; Plug 41 groove 10; Elastic mechanism 11; Steel ball 111; Electromagnet 112; Spring 113.
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present utility model and working principle are described in further detail.
Embodiment one:
As shown in Figure 1, a kind of solenoid valve, comprises main coil 1, main movable core 2, main spring 3, main valve stem 4, and main movable core 2 is arranged in main coil 1, and main movable core 2 upper end is connected with main spring 3, and main movable core 2 lower end is connected with main valve stem 4; Described main valve stem 4 lower end is provided with for carrying out spacing limit stoper to main valve stem 4, described limit stoper comprises secondary solenoid valve, described secondary solenoid valve is horizontally installed in the lower end of main electromagnetic valve, this secondary solenoid valve comprises secondary coil 5, secondary movable core 6, auxiliary spring 7, auxiliary valve rod 8, secondary movable core 6 is arranged in secondary coil 5, secondary movable core 6 right-hand member is connected with auxiliary spring 7, and secondary movable core 6 left end is connected with auxiliary valve rod 8; Described auxiliary valve rod 8 is kept out mutually with main valve stem 4 and is coordinated, after main valve stem 4 rises, described auxiliary valve rod 8 is extended withstands main valve stem 4 lower end, prevent main valve stem from resetting after main coil 1 power-off downwards, and auxiliary valve rod 8 is subject to the pressure of main valve stem 4, after secondary coil 5 power-off, still the state of stretching out can be kept.As the optimal way to main valve stem 4, described main valve stem 4 is provided with plug 41, and this plug 41 is positioned at main valve stem 4 lower end, after main valve stem 4 rises, and extended plug 41 lower end withstanding main valve stem of described auxiliary valve rod 8.
As shown in Figure 2, be the phase diagram of above-mentioned solenoid valve opening process, this opening process is by following program step: first, please refer to Fig. 2 (a), solenoid valve is in closed condition, and main coil 1 and secondary coil 5 are not all energized; Then, please refer to Fig. 2 (b), main coil 1 is energized, and main movable core 2 overcomes main spring 3 elastic force, drives main valve stem 4 to rise and opens; Then, please refer to Fig. 2 (c), secondary coil 5 is energized, and secondary movable core 6 overcomes auxiliary spring 7 elastic force, drives auxiliary valve rod 8 to stretch to the below of main valve stem 4; Finally, main coil 1 power-off, main movable core 2 is under main spring 3 elastic force, driving main valve stem 4 toward pressing down, being withstood by auxiliary valve rod 8, now, secondary coil 5 also power-off, and after auxiliary valve rod 8 is subject to the pressure of main valve stem 4, between main valve stem 4 and auxiliary valve rod 8, produce frictional force, auxiliary valve rod 8 can be made to overcome auxiliary spring 7 elastic force and to keep stretching out state.
As shown in Figure 3, for above-mentioned closed electromagnetic valve process status figure, this closing process is by following program step: first, please refer to Fig. 3 (a), main coil 1 is energized, and main movable core 2 overcomes main spring 3 elastic force, drives main valve stem 4 to rise, make main valve stem 4 unclamp pressure to auxiliary valve rod 8, auxiliary valve rod 8 resets immediately; Then, please refer to Fig. 3 (b), main line Fig. 1 power-off, main valve stem 4 resets immediately, toward pressing down, makes closed electromagnetic valve.
Embodiment two:
As shown in Figures 4 to 7, a kind of solenoid valve, comprises main coil 1, main movable core 2, main spring 3, main valve stem 4, and main movable core 2 is arranged in main coil 1, and main movable core 2 upper end is connected with main spring 3, and main movable core 2 lower end is connected with main valve stem 4; Described main valve stem 4 lower end is provided with for carrying out spacing limit stoper to main valve stem 4, and described limit stoper comprises the groove 10 of the side being positioned at main valve stem 4 and the elastic mechanism 11 corresponding with groove 10, and this elastic mechanism 11 elasticity presses on main valve stem 4 side; After main valve stem 4 rises, the front end of this elastic mechanism 11 can fall in groove 10, prevents main valve stem 4 from resetting after main coil 1 power-off downwards; When main valve stem 4 is for declining, the front end of elastic mechanism 11 can indentation to the back-end, so that the front end of elastic mechanism 11 is shifted out from groove 10, main valve stem 4 is declined.
As shown in Figures 4 to 7, described groove 10 is circular groove 10, and described elastic mechanism 11 is provided with at least two, and it is evenly distributed around the circular groove 10 of main valve stem 4, the front end of this elastic mechanism 11 is steel ball 111, and rear end is electromagnet 112, is connected between steel ball with electromagnet by spring 113; During electromagnet 112 no electric circuit, steel ball 111 is under the effect of spring 113 elastic force, and form elasticity to main valve stem 4 side and compress power, when electromagnet 112 is energized, steel ball 111, under electromagnet 112 attraction force, overcomes spring 113 tension force backward indent.
The above is only the utility model better embodiment, every above mode of execution is done according to the technical solution of the utility model any trickle amendment, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (4)
1. a solenoid valve, comprise main coil, main movable core, main spring, main valve stem, main movable core is arranged in main coil, and main movable core upper end is connected with main spring, and main movable core lower end is connected with main valve stem; It is characterized in that: described main valve stem lower end is provided with for carrying out spacing limit stoper to main valve stem, described limit stoper comprises secondary solenoid valve, described secondary solenoid valve is horizontally installed in the lower end of main electromagnetic valve, this secondary solenoid valve comprises secondary coil, secondary movable core, auxiliary spring, auxiliary valve rod, secondary movable core is arranged in secondary coil, secondary movable core right-hand member is connected with auxiliary spring, and secondary movable core left end is connected with auxiliary valve rod; Described auxiliary valve rod and main valve stem are kept out mutually and are coordinated, after main valve stem rises, described auxiliary valve rod is extended withstands main valve stem lower end, prevents main valve stem from resetting after main coil power-off downwards, and auxiliary valve rod is subject to the pressure of main valve stem, after secondary coil power-off, still the state of stretching out can be kept.
2. solenoid valve according to claim 1, is characterized in that: described main valve stem is provided with plug, and this plug is positioned at main valve stem lower end, after main valve stem rises, and the extended plug lower end withstanding main valve stem of described auxiliary valve rod.
3. a solenoid valve, comprise main coil, main movable core, main spring, main valve stem, main movable core is arranged in main coil, and main movable core upper end is connected with main spring, and main movable core lower end is connected with main valve stem; It is characterized in that: described main valve stem lower end is provided with for carrying out spacing limit stoper to main valve stem, and described limit stoper comprises the groove of the side being positioned at main valve stem and the elastic mechanism corresponding with groove, and this elastic mechanism elasticity presses on main valve stem side; After main valve stem rises, the front end of this elastic mechanism can fall in groove, prevents main valve stem from resetting after main coil power-off downwards; When main valve stem is for declining, the front end of elastic mechanism can indentation to the back-end, so that the front end of elastic mechanism is shifted out from groove, main valve stem is declined.
4. solenoid valve according to claim 3, is characterized in that: described groove is circular groove, and described elastic mechanism is provided with at least two, and it is evenly distributed around the circular groove of main valve stem, the front end of this elastic mechanism is steel ball, and rear end is electromagnet, is connected between steel ball with electromagnet by spring; During electromagnet no electric circuit, steel ball is under spring force effect, and form elasticity to main valve stem side and compress power, during electromagnet energising, steel ball, under attractive force of electro-magnet, overcomes spring tension backward indent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420798763.0U CN204403517U (en) | 2014-12-17 | 2014-12-17 | A kind of solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420798763.0U CN204403517U (en) | 2014-12-17 | 2014-12-17 | A kind of solenoid valve |
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| Publication Number | Publication Date |
|---|---|
| CN204403517U true CN204403517U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420798763.0U Active CN204403517U (en) | 2014-12-17 | 2014-12-17 | A kind of solenoid valve |
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| CN (1) | CN204403517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606249A (en) * | 2017-09-19 | 2018-01-19 | 南京润泽流体控制设备有限公司 | Check valve |
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2014
- 2014-12-17 CN CN201420798763.0U patent/CN204403517U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606249A (en) * | 2017-09-19 | 2018-01-19 | 南京润泽流体控制设备有限公司 | Check valve |
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Effective date of registration: 20210918 Granted publication date: 20150617 |