CN102954275A - Centre-type steam solenoid valve - Google Patents
Centre-type steam solenoid valve Download PDFInfo
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- CN102954275A CN102954275A CN 201210433323 CN201210433323A CN102954275A CN 102954275 A CN102954275 A CN 102954275A CN 201210433323 CN201210433323 CN 201210433323 CN 201210433323 A CN201210433323 A CN 201210433323A CN 102954275 A CN102954275 A CN 102954275A
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Abstract
The invention relates to the technical field of the solenoid valve, in particular to a centre-type steam solenoid valve. The centre-type steam solenoid valve comprises a valve body, a solenoid coil arranged on the upper part of the valve body, a movable iron core, a spring and a piston, wherein the movable iron core, the spring and the piston are successively arranged in the middle of the valve body from top to bottom; one end of the spring is connected into the inside of the valve body; the other end of the spring is connected with the upper part of the piston; the lower part of the movable iron core is provided with a taper-shaped valve needle; the middle of the piston is provided with a pressure relief hole; the inside of the body wall of the piston is provided with a pilot hole; and the pilot hole is positioned on one side of an air inlet of the valve body. The centre-type steam solenoid valve disclosed by the invention has the advantages of small abrasion, good tightness, stable performance, long service life and high sensitivity.
Description
Technical field
The present invention relates to the Solenoid Valve Technology field, particularly a kind of top formula steam electromagnetic valve.
Background technique
Steam electromagnetic valve is widely used in the robot control system(RCS)s such as weaving, printing, chemical industry, plastics, rubber, pharmacy, food, building materials, machinery, electrical equipment, surface treatment and scientific research department and bathroom, dining room, air-conditioning, is the indispensable product of modern industry high temperature fluid control field.Existing general steam electromagnetic valve adopts the guided piston type structure, to drive valve by the leading type secondary that secondary valve and main valve two large parts consist of, Sealing is the heat-resisting soft sealing material, because valve port and Sealing all are flat, although be resistant to elevated temperatures Sealing, under working long hours, Sealing still can be subjected to the impact of each side, produce wearing and tearing and/or distortion, so that solenoid valve is scrapped.Therefore, a kind of little, stable performance of wearing and tearing of exploitation, the top formula steam electromagnetic valve in raising life-span just are one of study hotspot.
Summary of the invention
Deficiency for above-mentioned prior art exists the purpose of this invention is to provide a kind of top formula steam electromagnetic valve, the advantages such as it has, and wearing and tearing are little, good airproof performance, stable performance, long service life and sensitivity height.
For achieving the above object, the present invention is by the following technical solutions:
A kind of top formula steam electromagnetic valve, comprise valve body, be located at the electromagnetic coil on described valve body top, be located at successively from top to bottom described valve inner middle moving iron core, spring and piston, described spring one end connects described valve inner, the other end connects described piston top, described moving mandrel lower is provided with tapered needle valve, described piston central authorities are provided with pressure relief vent, body wall inside is provided with pilot hole, and described pilot hole is positioned at described valve body suction port one side.
Further, inside, described piston upper end is provided with groove, is arranged with little sealing gasket in the described groove, the tapered needle valve fitted seal of described little sealing gasket and described moving iron core.
Further, described piston bottom is arranged with large sealing gasket.
Further, described piston outer side surface top is arranged with piston ring.
Further, described piston ring is two.
Piston ring of the present invention bottom is provided with little sealing gasket, moving iron core lower end is provided with tapered needle valve, when piston and moving iron core are moving up and down when a small amount of non-coaxial situation occurring in the process, the tip of tapered needle valve can be revised in inserting little sealing gasket center hole process automatically, sealability of the present invention be can effectively guarantee, thereby sensitivity and the stability of electromagnetic valve work guaranteed.Even long-time the use causes Sealing to wear and tear to some extent, the tip of tapered needle valve also has the automatic-sealed compensate function, can greatly prolong its working life.Therefore, the present invention has the advantages such as little, the good airproof performance of wearing and tearing, stable performance, long service life and sensitivity height.
Summary of the invention
Fig. 1 is sectional structure schematic diagram of the present invention.
Among the figure:
1, valve body; 2, large sealing gasket; 3, piston ring; 4, piston;
5, little sealing gasket; 6, moving iron core; 7, electromagnetic coil; 8, spring;
A, suction port; B, air outlet; C, valve port; D, pressure relief vent;
E, pilot hole; F, upper chamber.
Embodiment
The following stated only is preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
Embodiment, as shown in Figure 1:
A kind of top formula steam electromagnetic valve, comprise valve body 1, be located at the electromagnetic coil 7 on described valve body 1 top, be located at successively from top to bottom the moving iron core 6 of described valve body 1 bosom, spring 8 and piston 4, described spring 4 one ends connect described valve body 1 inside, the other end connects described piston 1 top, described moving iron core 6 bottoms are provided with tapered needle valve, described piston 4 central authorities are provided with pressure relief vent d, body wall inside is provided with pilot hole e, described pilot hole e is positioned at described valve body 1 suction port one side, inside, described piston 1 upper end is provided with groove, be arranged with little sealing gasket 5 in the described groove, described piston 1 bottom is arranged with large sealing gasket 2, outer side surface top is arranged with two piston rings 3.
Working principle of the present invention: externally under the Power supply, described electromagnetic coil 7 is moment to produce magnetic field, under the effect of electromagnetic force, described moving iron core 6 overcomes deadweight and the hydrodynamic pressure adhesive moves up, thereby open described pressure relief vent d port, at this moment, the suction port a of described valve body 1 inside and valve port c pressure balance, the pressure that the pressure of fluid overcomes described spring 8 moves up described piston 4, this moment, valve port c was communicated with air outlet b, at this moment, the present invention is in opening state, and fluid can flow out through air outlet b from suction port a, valve port c again.After described electromagnetic coil 7 outages, electromagnetic force disappears, described moving iron core 6 is moved down by action of gravitation, by the described pressure relief vent d of described little sealing gasket 5 sealings, described spring 8 applies downward thrust to described piston 4 simultaneously, it is moved down, by described large sealing gasket 2 sealing valve port c ports, this moment, the fluid of suction port a flowed to the f of upper chamber by described pilot hole e, the pressure of the f of upper chamber is greater than air outlet b, it is tighter that the pressure reduction that produces gets valve closing, and at this moment, the present invention is in closed condition.
The above only is better embodiment of the present invention, therefore all equivalences of doing according to the described structure of patent claim of the present invention, feature and principle change or modify, is included in the patent claim of the present invention.
Claims (5)
1. top formula steam electromagnetic valve, it is characterized in that: comprise valve body (1), be located at the electromagnetic coil (7) on described valve body (1) top, be located at successively from top to bottom the moving iron core (6) of described valve body (1) bosom, spring (8) and piston (4), described spring (4) one ends connect described valve body (1) inside, the other end connects described piston (1) top, described moving iron core (6) bottom is provided with tapered needle valve, described piston (4) central authorities are provided with pressure relief vent (d), body wall inside is provided with pilot hole (e), and described pilot hole (e) is positioned at described valve body (1) suction port one side.
2. top formula steam electromagnetic valve according to claim 1 is characterized in that: inside, described piston (1) upper end is provided with groove, is arranged with little sealing gasket (5) in the described groove.
3. top formula steam electromagnetic valve according to claim 1, it is characterized in that: described piston (1) bottom is arranged with large sealing gasket (2).
4. top formula steam electromagnetic valve according to claim 1, it is characterized in that: described piston (1) outer side surface top is arranged with piston ring (3).
5. top formula steam electromagnetic valve according to claim 4, it is characterized in that: described piston ring (3) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210433323 CN102954275A (en) | 2012-11-02 | 2012-11-02 | Centre-type steam solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210433323 CN102954275A (en) | 2012-11-02 | 2012-11-02 | Centre-type steam solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102954275A true CN102954275A (en) | 2013-03-06 |
Family
ID=47763470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210433323 Pending CN102954275A (en) | 2012-11-02 | 2012-11-02 | Centre-type steam solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102954275A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559478A (en) * | 2017-10-12 | 2018-01-09 | 刘文华 | A kind of electromagnetic start formula fluid dynamic difference opening and closing device |
| JP2018141486A (en) * | 2017-02-27 | 2018-09-13 | いすゞ自動車株式会社 | Relief valve control device and relief valve control method |
| CN110906042A (en) * | 2018-09-17 | 2020-03-24 | 浙江三花制冷集团有限公司 | Electromagnetic valve |
| CN113074275A (en) * | 2020-01-03 | 2021-07-06 | 盾安环境技术有限公司 | Electromagnetic valve |
| CN114087417A (en) * | 2020-08-24 | 2022-02-25 | 蒙冬强 | Electromagnetic valve with manual emergency switch |
-
2012
- 2012-11-02 CN CN 201210433323 patent/CN102954275A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018141486A (en) * | 2017-02-27 | 2018-09-13 | いすゞ自動車株式会社 | Relief valve control device and relief valve control method |
| CN107559478A (en) * | 2017-10-12 | 2018-01-09 | 刘文华 | A kind of electromagnetic start formula fluid dynamic difference opening and closing device |
| CN107559478B (en) * | 2017-10-12 | 2024-06-14 | 刘文华 | Electromagnetic start type fluid power difference switching device |
| CN110906042A (en) * | 2018-09-17 | 2020-03-24 | 浙江三花制冷集团有限公司 | Electromagnetic valve |
| CN113074275A (en) * | 2020-01-03 | 2021-07-06 | 盾安环境技术有限公司 | Electromagnetic valve |
| CN113074275B (en) * | 2020-01-03 | 2022-06-17 | 盾安环境技术有限公司 | Electromagnetic valve |
| CN114087417A (en) * | 2020-08-24 | 2022-02-25 | 蒙冬强 | Electromagnetic valve with manual emergency switch |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130306 |