CN103174852A - Electromagnetic controlled check valve - Google Patents

Electromagnetic controlled check valve Download PDF

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Publication number
CN103174852A
CN103174852A CN2011104401661A CN201110440166A CN103174852A CN 103174852 A CN103174852 A CN 103174852A CN 2011104401661 A CN2011104401661 A CN 2011104401661A CN 201110440166 A CN201110440166 A CN 201110440166A CN 103174852 A CN103174852 A CN 103174852A
Authority
CN
China
Prior art keywords
main valve
valve
electromagnet
main
controlled check
Prior art date
Application number
CN2011104401661A
Other languages
Chinese (zh)
Inventor
袁才富
瞿东
朱剑根
沈至伟
陆霞琴
Original Assignee
上海立新液压有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 上海立新液压有限公司 filed Critical 上海立新液压有限公司
Priority to CN2011104401661A priority Critical patent/CN103174852A/en
Publication of CN103174852A publication Critical patent/CN103174852A/en

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Abstract

The invention provides an electromagnetic controlled check valve which comprises an electromagnet. The electromagnet is connected with a main valve seat through a main valve connector. The electromagnetic controlled check valve is characterized in that the electromagnet is provided with an armature, the armature is connected with a cone valve core, and the front end cone portion of the cone valve core is sealed with a pilot hole in the main valve connector. A main valve core is arranged on the main valve seat. A spring is arranged at one end of the main valve core. The other end of the spring is arranged on the inside of the main valve connector. According to the electromagnetic controlled check valve, design of an oil-way becomes easy, and remote control operation can be achieved through an electrical control way and is very important for some systems needing an emergency function. Meanwhile, the close time of the electromagnetic controlled check valve can be adjusted through change of damping according to specific needs.

Description

A kind of Electromagnetic Control one-way valve

Technical field

The present invention relates to the hydraulic system technical field, specifically relate to the Electromagnetic Control one-way valve that uses in a kind of hydraulic control system.

Background technique

Commonly use the one-way valve that arrives in hydraulic system, be used for controlling the break-make of some pipeline fluid in hydraulic system.Existing one-way valve is generally direct-drive one-way valve and Pilot operated check valve, direct-drive one-way valve only can oil circuit control one way flow, oppositely end, although Pilot operated check valve can be controlled the two-way flow of fluid, control but must provide in addition the pressure oil whether one-way valve is oppositely opened, just must correspondingly set up the normal operation that other hydraulic element are guaranteed Pilot operated check valve in system, simultaneously the pressure of controlling oil also there is certain requirement, not free controlled when one-way valve is closed after direction is opened simultaneously.

Summary of the invention

Technical problem to be solved by this invention is, overcomes problems of the prior art, and a kind of Electromagnetic Control one-way valve is provided.

Such in order to address the above problem technological scheme of the present invention:

A kind of Electromagnetic Control one-way valve, comprise electromagnet, electromagnet connects main valve seat by the main valve connecting body, it is characterized in that, electromagnet has an armature, and armature connects a poppet valve core, the front end tapering of poppet valve core and the sealing of the pilot hole on the main valve connecting body, main valve seat is provided with main valve plug, and main valve plug one end is provided with spring, and spring the other end ground is in the inside of main valve connecting body.

Be the cone sealing between main valve plug and main valve seat.

Have the guide oil oil inlet hole on the main valve connecting body, guide's filler opening is provided with damping hole.

Have some compensating grooves on the excircle of main valve plug.

Adopt between main valve seat and main valve connecting body and be threaded.

The present invention can adopt the form of electrical control to realize to remote-control operation so that the oil circuit design becomes simple, needs the system of emergency function particularly important at some, and simultaneously, the shut-in time of this valve can be changed according to specific needs damping and be regulated.

Description of drawings

Describe the present invention in detail below in conjunction with the drawings and specific embodiments;

Fig. 1 is the structural representation of a kind of Electromagnetic Control one-way valve of the present invention.

Fig. 2 is main valve plug structural representation of the present invention.

Fig. 3 is poppet valve core structural representation of the present invention.

Wherein 1---armature; 2---screw; 3---poppet valve core; 4---O shape circle; 5---drain tap; 6---O shape circle; 7---damping hole; 8---O shape circle; 9---main valve seat; 10---O shape circle; 11---the main valve seat surface; 12---electromagnet; 13---the main valve connecting body; 14---spring; 15---screw thread is installed; 16---the main valve seat connecting thread; 17---main valve plug; 18---hydraulic fluid port A; 19---hydraulic fluid port B; 20---main valve oil sealing mouth.

Embodiment

For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.

referring to Fig. 1, Fig. 2 and Fig. 3, electromagnet 12 its armature 1 are connected with pilot poppet valve core 3 use 2 screws, control the state of the Push And Release of poppet port, main valve cover for seat 9 is threaded with main valve connecting body 13 use, seal ring 8 is housed on main valve seat prevents directly ganging up of oil circuit B and guide oil, also have two O shape ring recess on the main valve connecting body, be used for installing seal ring 4, 6 isolate guide oil and oil return, guarantee simultaneously not leak when valve is on being arranged on operation block, have damping hole 7 on the main valve connecting body, main valve plug relies on thrust and the main valve seat 9 of spring 14 closely to combine, what the main valve oil sealing mouth 20 between main valve plug 17 and main valve seat adopted is the cone sealing, to guarantee the reliability of sealing, what this valve adopted is screw thread inserting type, hydraulic fluid port 18, sealing between 19 guarantees with seal ring 10.

Main valve housing 9 is connected with main valve connecting body 13 use screw threads 16, the centre seals with seal ring 8, prevent that first guide cavity fluid and B chamber fluid from ganging up, guarantee the reliability of guide's some work, adopting simultaneously the other function of this kind structure is when primary sealing area sustains damage, can change easily main valve seat, and need not to change whole one-way valve, main valve seat has four through holes 18 on conical surface circumference, the angle that this through-bore axis and main valve plug movement direction are certain, make as far as possible the resistance that flows of fluid reduce, pressure reduction is very little.The front end of main valve seat is made stage, is used for by putting seal ring 10, makes manifold block oil-feed A and B chamber partition in system.

Main valve plug 17 makes its anterior conical surface and main valve seat 9 closely combine due to the effect of the pretightening force of spring 14, and what the sealing between between them was adopted is the conical surface one right angle sealing, effectively Leakage prevention.The main valve plug front end is made stepped, makes the spool cross section in the B chamber, an annulus area be arranged, and the spool rear end is processed with a blind hole, in order to locate preloading spring.Have simultaneously the compensating groove of some on the circumference of main valve plug, the radial force during with elimination work.

The main valve connecting body inserts with being connected to of system oil-way piece and is threaded, and is threaded with being connected to of electromagnet 12.be processed with seal groove on the main valve connecting body, seal ring 4 is installed, be used for preventing the external leakage of main valve, simultaneously, have guide oil oil inlet hole (C) 7 and spill port 5 (D) on the main valve connecting body, oilhole (C) is with damping hole 7, decide as required the size of damping, also be processed with O shape ring recess on the main valve connecting body, O shape circle 5 is installed, its Main Function is the sealing that prevents between the turnover of guide oil, guarantee the reliability of guide's some work, the front aperture of main valve connecting body is processed into stepped, be used for respectively retaining spring 14 and limit the opening degree of main valve plug 17, the spring chamber place is identical with oil-feed damping hole 7, guide oil is entered smoothly.The rear end aperture of main valve connecting body and 1 sealing of pilot poppet valve core make oil-feed and the oil return isolation of guide's part, and oil back chamber communicates with spill port 5.

The push rod of guide's spool and electromagnet links together with screw 2, the pilot hole sealing of the tapering of its front end and main valve connecting body 13, and the push rod 1 of electromagnet 12 is realized by its contained spring thrust.

Above demonstration and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (5)

1. Electromagnetic Control one-way valve, comprise electromagnet, electromagnet connects main valve seat by the main valve connecting body, it is characterized in that, electromagnet has an armature, and armature connects a poppet valve core, the front end tapering of poppet valve core and the sealing of the pilot hole on the main valve connecting body, main valve seat is provided with main valve plug, and main valve plug one end is provided with spring, and spring the other end ground is in the inside of main valve connecting body.
2. a kind of Electromagnetic Control one-way valve according to claim 1, is characterized in that, is the cone sealing between main valve plug and main valve seat.
3. a kind of Electromagnetic Control one-way valve according to claim 1, is characterized in that, have the guide oil oil inlet hole on the main valve connecting body, guide's filler opening is provided with damping hole.
4. a kind of Electromagnetic Control one-way valve according to claim 1, is characterized in that, has some compensating grooves on the excircle of main valve plug.
5. a kind of Electromagnetic Control one-way valve according to claim 1, is characterized in that, adopts between main valve seat and main valve connecting body to be threaded.
CN2011104401661A 2011-12-23 2011-12-23 Electromagnetic controlled check valve CN103174852A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011104401661A CN103174852A (en) 2011-12-23 2011-12-23 Electromagnetic controlled check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011104401661A CN103174852A (en) 2011-12-23 2011-12-23 Electromagnetic controlled check valve

Publications (1)

Publication Number Publication Date
CN103174852A true CN103174852A (en) 2013-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011104401661A CN103174852A (en) 2011-12-23 2011-12-23 Electromagnetic controlled check valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106641351A (en) * 2016-11-25 2017-05-10 汉玉森科技(武汉)有限公司 Pilot control hydraulic one-way valve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07332525A (en) * 1994-06-13 1995-12-22 Uchida Yuatsu Kiki Kogyo Kk Cartridge type electromagnetic proportional pressure control valve
JPH1194116A (en) * 1997-09-18 1999-04-09 Unisia Jecs Corp Solenoid valve
US20090050222A1 (en) * 2007-08-20 2009-02-26 Hydraforce, Inc. Three-way poppet valve with intermediate pilot port
CN201288862Y (en) * 2008-10-17 2009-08-12 上海立新液压有限公司 Pilot-operated check valve
CN201288869Y (en) * 2008-10-28 2009-08-12 上海立新液压有限公司 Balance control valve
CN101678822A (en) * 2007-06-13 2010-03-24 罗伯特·博世有限公司 solenoid valve
CN202501051U (en) * 2011-12-23 2012-10-24 上海立新液压有限公司 Electromagnetic control non-return valve

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07332525A (en) * 1994-06-13 1995-12-22 Uchida Yuatsu Kiki Kogyo Kk Cartridge type electromagnetic proportional pressure control valve
JPH1194116A (en) * 1997-09-18 1999-04-09 Unisia Jecs Corp Solenoid valve
CN101678822A (en) * 2007-06-13 2010-03-24 罗伯特·博世有限公司 solenoid valve
US20090050222A1 (en) * 2007-08-20 2009-02-26 Hydraforce, Inc. Three-way poppet valve with intermediate pilot port
CN201288862Y (en) * 2008-10-17 2009-08-12 上海立新液压有限公司 Pilot-operated check valve
CN201288869Y (en) * 2008-10-28 2009-08-12 上海立新液压有限公司 Balance control valve
CN202501051U (en) * 2011-12-23 2012-10-24 上海立新液压有限公司 Electromagnetic control non-return valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106641351A (en) * 2016-11-25 2017-05-10 汉玉森科技(武汉)有限公司 Pilot control hydraulic one-way valve

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Application publication date: 20130626