CN102537484B - Electromagnetic valve with differential pressure resistance valve core - Google Patents
Electromagnetic valve with differential pressure resistance valve core Download PDFInfo
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- CN102537484B CN102537484B CN2012100260419A CN201210026041A CN102537484B CN 102537484 B CN102537484 B CN 102537484B CN 2012100260419 A CN2012100260419 A CN 2012100260419A CN 201210026041 A CN201210026041 A CN 201210026041A CN 102537484 B CN102537484 B CN 102537484B
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Abstract
An electromagnetic valve with a differential pressure resistance valve core is composed of a valve rod, a press cap, a V-shaped sealing ring, a gasket, a sealing pad, a nut, a valve core, a large O-shaped ring, a stifle, a sealing gasket, a valve body, a valve core seat, a small sealing ring, a spring, a small O-shaped ring, a middle O-shaped ring and an electromagnet. The valve core is in a thin-wall cylindrical shape, one end of the valve core is open, the other end is provided with an end face plate, a step connected with the valve rod is positioned in the center of the end face plate, and through holes are arranged on the periphery of the step. A blocking shoulder is arranged at the periphery of the valve core to limit journey of the valve core to improve sealing performance. Under the action of the electromagnet, an upward-moving valve on the valve core is in a close state, pressure water is filled with the valve core and a cavity communicated with the valve core, the sum of axial force stressed on the valve core is nearly zero, pressure difference inside and outside the cylinder wall of the valve core is large, axial force stressed on in the cylinder wall is enough to enable the thin wall of the valve core to expand and deform, and sealing between the valve core and the valve is reliable. When the valve core moves downwards, the valve is open, and water pressure has no side effects on the valve core.
Description
Technical field
The present invention relates to a kind of solenoid valve with differential pressure resistance valve core.
Background technique
Solenoid valve is a kind of mortor operated valve, is that the magnetic field that utilizes electromagnetic coil to produce pulls spool, thereby changes the break-make of valve body, and during coil blackout, spool is return with regard to the pressure that relies on spring.Spool in common valve body is to adopt the piston type structure, and circular spool is fixed on the head of valve rod, and in the end face of spool and valve body, the separate layer through hole coincide, and by valve rod band movable valve plug, moves up and down, and gets final product the break-make of control valve.But, owing between two chambeies of separate layer in valve body, existing larger pressure difference, if set that water (flow) direction is consistent with the spool opening direction locking condition valve is very poor, easily cause the leakage of separate layer through hole and spool Surface of action; If set spool flow path direction unlatching against the current, although the sealability of valve can improve, the load of Open valve can increase.People will make every effort to solve this to the unity of contradictions body.
Summary of the invention
The invention provides a kind of solenoid valve with differential pressure resistance valve core.It by valve rod, pressure cap, v-ring, packing ring, sealing gasket, nut, spool, large O shape circle, stifle, seal washer, valve body, valve core case, small sealing ring, spring, little O shape circle, in O shape circle, electromagnet form.Valve body totally passes through with arm the T-shaped shape three-port structure formed for straight-through tube mutually, three ports are equipped with flange, valve body straight-through tube two ends bore is identical, straight-through tube is provided with interlayer, the ，Gai plane, plane that the interlayer intermediate portion was axis is vertical with the arm axis, and plane is provided with a circular hole centered by the arm axis, the below of circular hole forms and can hold the interval that spool moves up and down with a tube opening, after a tube opening lining seal washer, uses the stifle shutoff.Connecting part at tube cavity and straight-through tube arranges the valve core case that a guide spool moves, and can correctly locate when guaranteeing that spool moves up and down.The inboard groove of valve core case place establishes large O shape circle, makes spool and valve core case good seal; Above circular hole, along a tube opening axis, extend upwardly to straight-through tube tube wall place, be provided with a boss that valve rod is installed, boss is established ladder hole, and screw thread is established in aperture; Spool is the thin-wall circular tubular, an end opening, and the other end is provided with end plates, and the step that connects valve rod is established at the end plates center, and the step surrounding is provided with through hole.The excircle of spool is provided with shoulder block, with stroke and the raising sealability of restriction spool.Valve rod one end is established groove, and for connecting electromagnet, the other end is established screw thread and is connected with spool, with nut, is locked.Be provided with the short screw of through hole centered by pressure cap, through hole coordinates with valve lever clearance, and Kong Zhongshe installs the seal groove of little O shape circle, and cylindrical is established the screw thread with valve body boss aperture coupling, and thread root is established the seal groove of O shape circle in installation.The valve rod mangetic core assembly is packed into from a tube opening of valve body, the groove ends of valve rod is propped up tube opening from valve body and is penetrated, ladder hole through interlayer plane circular hole and straight-through tube tube wall place boss passes, pack in turn sealing gasket, small sealing ring, spring, packing ring, v-ring, little O shape circle, pressure cap, pressure cap is connected with valve body screw thread after being inserted in middle O shape circle again.Under the effect of electromagnet, move valve on spool in closed condition, the cavity that press water has been full of spool and has been communicated with it, now pressure water action is almost nil in the axial force sum of spool, and the pressure difference inside and outside the spool barrel is very large, acting on radial force in barrel is enough to allow spool thin-walled trace dilatancy, causes the sealing of spool and valve body more reliable.Valve opening when spool moves down, hydraulic pressure still has no adverse effects to spool.
The accompanying drawing explanation
Fig. 1 is structure sectional view of the present invention.
Fig. 2 is the enlarged portion of Fig. 1 of the present invention at the E place.
In figure 1, valve rod; 2, pressure cap; 3, v-ring; 4, packing ring; 5, sealing gasket; 6, nut; 7, spool; 8, large O shape circle; 9, stifle; 10, seal washer; 11, valve body; 12, valve core case; 13, small sealing ring; 14, spring; 15, little O shape circle; 16, middle O shape circle; 17, electromagnet; E, enlarged portion.
Embodiment
Valve body (11) totally passes through with arm the T-shaped shape three-port structure formed for straight-through tube mutually, three ports are equipped with flange, valve body straight-through tube two ends bore is identical, straight-through tube is provided with interlayer, the plane that the interlayer intermediate portion was axis, this plane is vertical with the arm axis, plane is provided with a circular hole centered by the arm axis, the below of circular hole and a tube opening form and can hold the interval that spool (7) moves up and down, and a tube opening lining seal washer (10) is rear with stifle (9) shutoff.The mobile valve core case (12) of a guide spool (7) is set in the connecting part of a tube cavity and straight-through tube, can correctly locates while moving up and down to guarantee spool (7).The inboard groove of valve core case (12) place establishes large O shape circle (8), makes spool (7) and valve core case (12) good seal; Above circular hole, along a tube opening axis, extend upwardly to straight-through tube tube wall place, be provided with a boss that valve rod (1) is installed, boss is established ladder hole, and screw thread is established in aperture.Spool (7) is the thin-wall circular tubular, an end opening, and the other end is provided with end plates, and the step that connects valve rod (1) is established at the end plates center, and the step surrounding is provided with through hole.The excircle of spool (7) is provided with shoulder block, with stroke and the raising sealability of restriction spool (7).Valve rod (1) one end is established groove, and for connecting electromagnet (17), the other end is established screw thread and is connected with spool (7), with nut (6), is locked.Be provided with the short screw of through hole centered by pressure cap (2), through hole and valve rod (1) Spielpassung, Kong Zhongshe installs the seal groove of little O shape circle (15), and cylindrical is established the screw thread with valve body (11) boss aperture coupling, and thread root is established the seal groove of O shape circle (16) in installation.Valve rod (1) spool (7) assembly is packed into from a tube opening of valve body (11), the groove ends of valve rod (1) penetrates from valve body (a 11) tube opening, ladder hole through interlayer plane circular hole and straight-through tube tube wall place boss passes, pack in turn sealing gasket (5), small sealing ring (13), spring (14), packing ring (4), v-ring (3), little O shape circle (15), pressure cap (2), pressure cap (2) is threaded with valve body (11) after being inserted in middle O shape circle (16) again.
Claims (1)
1. the solenoid valve with differential pressure resistance valve core, by valve rod, pressure cap, v-ring, packing ring, sealing gasket, nut, spool, large O shape is stored up, stifle, seal washer, valve body, valve core case, small sealing ring, spring, little O shape circle, middle O shape circle, electromagnet forms, it is characterized in that valve body totally passes through with arm the T-shaped shape three-port structure formed for straight-through tube mutually, three ports are equipped with flange, valve body straight-through tube two ends bore is identical, straight-through tube is provided with interlayer, the plane that the interlayer intermediate portion was axis, this plane is vertical with the arm axis, plane is provided with a circular hole centered by the arm axis, the below of circular hole forms and can hold the interval that spool moves up and down with a tube opening, use the stifle shutoff after propping up tube opening lining seal washer, connecting part at a tube cavity and straight-through tube arranges the valve core case that a guide spool moves, can correctly locate when guaranteeing that spool moves up and down, establish large O shape circle in the valve core case groove, make spool and valve core case good seal, above circular hole, extend upwardly to straight-through tube tube wall place along a tube opening axis, be provided with a boss that valve rod is installed, boss is established ladder hole, described spool is the thin-wall circular tubular, an end opening, and the other end is provided with end plates, and the step that connects valve rod is established at the end plates center, and the step surrounding is provided with through hole, and the excircle of spool is provided with shoulder block, with stroke and the raising sealability of restriction spool, described valve rod one end is established groove, with electromagnet, is connected, and the other end is established screw thread and is connected with spool, with nut, is locked, be provided with the short screw of through hole centered by pressure cap, through hole coordinates with valve lever clearance, and Kong Zhongshe installs the seal groove of little O shape circle, and cylindrical is established the screw thread with valve body boss aperture coupling, and thread root is established the seal groove of O shape circle in installation, the valve rod mangetic core assembly is packed into from a tube opening of valve body, the groove ends of valve rod is propped up tube opening from valve body and is penetrated, ladder hole through interlayer plane circular hole and straight-through tube tube wall place boss passes, pack in turn again sealing gasket, small sealing ring, spring, packing ring, v-ring, little O shape circle, pressure cap, pressure cap is connected with valve body screw thread after being inserted in middle O shape circle, under the effect of electromagnet, move valve on spool in closed condition, the cavity that press water has been full of spool and has been communicated with it, now pressure water action is almost nil in the axial force sum of spool, and the inside and outside pressure difference of spool barrel is very large, acting on radial force in barrel is enough to allow spool thin-walled trace dilatancy, causes the sealing of spool and valve body more reliable, valve opening when spool moves down, hydraulic pressure still has no adverse effects to spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100260419A CN102537484B (en) | 2012-01-20 | 2012-01-20 | Electromagnetic valve with differential pressure resistance valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100260419A CN102537484B (en) | 2012-01-20 | 2012-01-20 | Electromagnetic valve with differential pressure resistance valve core |
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| Publication Number | Publication Date |
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| CN102537484A CN102537484A (en) | 2012-07-04 |
| CN102537484B true CN102537484B (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100260419A Active CN102537484B (en) | 2012-01-20 | 2012-01-20 | Electromagnetic valve with differential pressure resistance valve core |
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| CN (1) | CN102537484B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102565973B1 (en) | 2019-04-02 | 2023-08-10 | 저장 산후아 클라이메이트 앤드 어플라이언스 컨트롤스 그룹 컴퍼니 리미티드 | electric valve |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712826B (en) * | 2015-03-22 | 2017-07-25 | 衢州迪升工业设计有限公司 | A kind of magnetic valve |
| WO2019005730A1 (en) * | 2017-06-26 | 2019-01-03 | Borgwarner Inc. | Throttle for electrically-driven charging devices |
| JP7124229B2 (en) * | 2019-04-02 | 2022-08-23 | 浙江三花制冷集団有限公司 | electric valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201902621U (en) * | 2010-12-23 | 2011-07-20 | 浙江恒森实业集团有限公司 | Dynamic balance electric regulating valve |
| CN101354080B (en) * | 2007-07-27 | 2011-07-20 | 张跃 | Cut-off type power-off reset electric valve |
| CN201982704U (en) * | 2011-01-26 | 2011-09-21 | 凯泰阀门(集团)有限公司 | Low-noise stepwise pressure-reducing flow-control valve |
| CN202545831U (en) * | 2012-01-20 | 2012-11-21 | 浙江恒森实业集团有限公司 | Electromagnetic valve with pressure difference interference-resistant valve core |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4049909B2 (en) * | 1998-11-06 | 2008-02-20 | 株式会社テージーケー | Pilot operated flow adjustment valve |
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- 2012-01-20 CN CN2012100260419A patent/CN102537484B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354080B (en) * | 2007-07-27 | 2011-07-20 | 张跃 | Cut-off type power-off reset electric valve |
| CN201902621U (en) * | 2010-12-23 | 2011-07-20 | 浙江恒森实业集团有限公司 | Dynamic balance electric regulating valve |
| CN201982704U (en) * | 2011-01-26 | 2011-09-21 | 凯泰阀门(集团)有限公司 | Low-noise stepwise pressure-reducing flow-control valve |
| CN202545831U (en) * | 2012-01-20 | 2012-11-21 | 浙江恒森实业集团有限公司 | Electromagnetic valve with pressure difference interference-resistant valve core |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2000-146012A 2000.05.26 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102565973B1 (en) | 2019-04-02 | 2023-08-10 | 저장 산후아 클라이메이트 앤드 어플라이언스 컨트롤스 그룹 컴퍼니 리미티드 | electric valve |
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| CN102537484A (en) | 2012-07-04 |
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| C14 | Grant of patent or utility model | ||
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| CB03 | Change of inventor or designer information |
Inventor after: Zhou Meirong Inventor after: He Yongshui Inventor after: Huang Youhua Inventor before: He Yongshui Inventor before: Huang Youhua |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HE YONGSHUI HUANG YOUHUA TO: ZHOU MEIRONG HE YONGSHUI HUANG YOUHUA |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Electromagnetic valve with pressure difference interference valve core Effective date of registration: 20211224 Granted publication date: 20131204 Pledgee: Agricultural Bank of China Limited Zhuji sub branch Pledgor: ZHEJIANG HENGSEN INDUSTRY GROUP Co.,Ltd. Registration number: Y2021980016355 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |