CN102817877A - Water switch control valve - Google Patents
Water switch control valve Download PDFInfo
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- CN102817877A CN102817877A CN2011101543340A CN201110154334A CN102817877A CN 102817877 A CN102817877 A CN 102817877A CN 2011101543340 A CN2011101543340 A CN 2011101543340A CN 201110154334 A CN201110154334 A CN 201110154334A CN 102817877 A CN102817877 A CN 102817877A
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Abstract
The invention provides a water switch control valve which mainly comprises a main valve core, a main valve body, a valve bonnet, a pilot valve core and a pilot valve body. The pilot valve body is mounted between the main valve core and the valve bonnet, the pilot valve core penetrates through the valve bonnet to press the pilot valve body, the main valve core, the pilot valve body and the main valve body form a pilot valve loop, and the pilot valve core controls on and off of the pilot valve loop. A damping hole is arranged in the pilot valve loop, positioned on the main valve core and communicated with an upper chamber and a lower chamber of the main valve core. The water switch control valve of a pilot structure can be opened and closed more stably, the main valve core is of a flat valve structure, the pilot valve body is of a cone valve structure, and thereby the water switch control valve is good in sealability. Moreover, differential pressure formed in front of and in back of the damping hole acts on the main valve core to enable a main valve port to be opened so as to be beneficial to reduction of opening control force, and the water switch control valve is particularly applicable to occasions with high system pressure and high flow.
Description
Technical field
The present invention relates to a kind of hydraulic pressure switch control valve of using in the water hydraulic transmission system, be specially adapted to the occasion of high-pressure high-flow, be used for controlling the break-make of flow.
Background technique
The water hydraulic drive technology have clean environment firendly, fire-retardant, with advantages such as the product compatibility is good, have broad application prospects.In the water hydraulic system, switch valve is a kind of basic controlling element, and the quality of its performance has very big influence to the functional reliability of water hydraulic system.What in the water hydraulic system, use mostly at present is straight ejector half electromagnetic switch valve; The unlatching of this valve is to act directly on the spool through the electromagnetic force that electromagnet produces to realize; Spool is closed then the Returnning spring power of leaning on spool and is driven, and therefore is not suitable for system pressure height, occasion that flow is bigger.
Summary of the invention
The present invention is primarily aimed at the above-mentioned deficiency of straight ejector half electromagnetic switch valve, the hand switch valve that provides a kind of occasion high to system pressure, that flow is bigger to use, and it is easy to operate, and reliable operation can realize the flow direction control to hydraulic pressure system preferably.
The invention provides a kind of hydraulic pressure switch control valve; Comprise main valve plug, main valve body and valve gap, it is characterized in that it also comprises pilot valve core and guide's valve body; Guide's valve body is installed between main valve plug and the valve gap; Pilot valve core passes valve gap and is pressed on guide's valve body, and main valve plug, guide's valve body and main valve body constitute the pilot valve loop, the break-make in this pilot valve loop of pilot valve core control.
Further, said pilot valve loop is a fluid channel loop, and a damping hole is arranged in this loop, and said damping hole is positioned on the main valve plug, is communicated with the epicoele and the cavity of resorption of main valve plug.
Further, between main valve plug and the main valve body, between guide's valve body and the main valve plug, between pilot valve core and the valve gap, between guide's valve body and the main valve body, adopt TX engineering plastics seal ring seal between valve gap and the main valve body.
Further, main valve plug adopts the fine reinforced polyether ether ketone of 30% carbon to process, and is pressed on by main spool spring on the valve seat orifice of main valve body.
Further, it also comprises handle, and handle is connected with guide's spool, and rotating handles can make guide's spool open or close.
Further, guide's valve body and valve gap all are tightened on the main valve body through screw thread.
The present invention compares existing straight ejector half hydraulic pressure switch valve and has following advantage:
1. this switch valve adopts manual control mode, rapid operation, and heating reaches problems such as the application area that causes owing to suction is limited is limited, poor reliability in the time of can overcoming solenoid valve work preferably.
2. this switch valve adopts the leading type structure, makes the opening and closing of valve more steady, and main valve plug adopts the flap type structure, and pilot valve adopts cone valve structure, good airproof performance.
3. adopt TX engineering plastics seal ring seal between this switch valve main valve plug and the valve body hole; Sealing effect is better; And problem when having avoided using sealing means such as combination seal helps improving the speed of response of valve the problem includes: the big problem of surface friction drag under the prerequisite that guarantees excellent sealing.
4. this switch valve on main valve plug, is opened primary valve through the differential pressure action of formation before and after the damping hole, helps reducing to open control force, is specially adapted to the bigger occasion of system pressure height and flow; Main valve plug adopts fine reinforced polyether ether ketone (PEEK) plastics of 30% carbon to process simultaneously, has good corrosion resistance and self lubricity, makes main valve plug have better service behaviour.
Description of drawings
Fig. 1 is the mechanical structure schematic representation of hydraulic pressure switch control valve of the present invention.
Embodiment
Specify technological scheme of the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, hydraulic pressure switch control valve of the present invention comprises: main valve plug 1, seal ring 2, main spool spring 3, guide's valve body 4, pilot valve core 9, valve gap 10, main valve body 13, locking nut 6, knurlied knob 7 and spherical plug 14.Wherein main valve is the flap type structure, and pilot valve is a cone valve structure, and main valve plug 1 is pressed on the valve seat orifice of main valve body 13 by main spool spring 3; The sealing of using TX engineering plastics seal ring 2 to realize between main valve plug 1 and the valve body hole; Guide's valve body 4 is installed on the main valve body 13 through screw thread, the static seal that adopts O RunddichtringO 12 to realize between them, and valve gap 10 also is tightened on the main valve body 13 through screw thread; Use O RunddichtringO 5 to realize sealing; Pilot valve core 9 is pressed on guide's valve body 4 after being threaded into valve gap 10, adopts 11 sealings of O RunddichtringO between pilot valve core 9 and the valve gap 10, and locking nut 6 is guide's spool 9 positions fixedly; Knurlied knob 7 connects with guide's spool 9 through pin 8, and spherical plug 14 is in order to the auxiliary hole j of blind hole n on the sealing main valve body 13.Main valve epicoele b is between main valve plug 1 and guide's valve body 4; Through hole a is the radial direction through hole on the main valve plug 1, and damping hole c is positioned on main valve plug 1 axis, is communicated with through hole a and main valve epicoele b; Guide's valve pocket f is between guide's valve body 4 and valve gap 10; Through hole d has been communicated with main valve epicoele b and guide's valve pocket f on guide's valve body 4, and blind hole e is positioned at pilot valve body axis place on guide's valve body 4, and blind hole m then is positioned at guide's valve body radially; Spill annular groove h on blind hole e and the main valve body 13 on the connection guide valve body 4; Spill annular groove h can guarantee that blind hole m and the blind hole n on the main valve body 13 on guide's valve body 4 communicates, and the blind hole n on the main valve body 13 is in order to the outlet A of connecting valve, and the blind hole g on guide's valve body 4 rotates the pilot valve body and function when also having a symmetrical blind hole to be used for assembling or dismounting.
The leading type structure has been adopted in the switch control of hydraulic pressure switch control valve of the present invention, and main valve plug 1, guide's valve body 4 and main valve body 13 have constituted the pilot valve loop, the break-make in guide's spool 9 these pilot valve loops of control.Its working principle is: when inserting switch valve in the hydraulic pressure system; Water gets into inlet P and gets into main valve epicoele b through through hole a on the main valve plug 1 and damping hole c; Get into guide's valve pocket f through the through hole d on guide's valve body 4 then, pilot valve is in closed condition during beginning, and water does not flow; The knurlied knob 7 of rotary switc valve; Pilot valve is promoted open, at this moment water has so just formed a pilot valve loop through the outlet A place that spill annular groove h and blind hole n on blind hole e, m and the main valve body 13 on guide's valve body 4 flow to valve; Because water has formed pressure difference at the mobile main valve upper and lower cavity that makes of damping hole c; When the suffered liquid force of main valve plug cavity of resorption during greater than epicoele liquid force, spring force and surface friction drag sum, main valve open, switch valve is connected.When wanting the off switch valve, rotation knurlied knob 7 is closed pilot valve, the flow disruption of pilot valve water at this moment, and the main valve upper and lower cavity does not have pressure reduction, and main valve is closed under the effect of spring force, and at this moment switch valve cuts out.
The present invention not only is confined to above-mentioned embodiment; Persons skilled in the art are according to content disclosed by the invention; Can adopt other multiple embodiment embodiment of the present invention, therefore, every employing project organization of the present invention and thinking; Do some simple designs that change or change, all fall into the scope of the present invention's protection.
Claims (6)
1. hydraulic pressure switch control valve; Comprise main valve plug (1), main valve body (13) and valve gap (10), it is characterized in that it also comprises pilot valve core (9) and guide's valve body (4); Guide's valve body (4) is installed between main valve plug (1) and the valve gap (10); Pilot valve core (9) passes valve gap (10) and is pressed on guide's valve body (4), and main valve plug (1), guide's valve body (4) and main valve body (13) constitute the pilot valve loop, and pilot valve core (9) is controlled the break-make in this pilot valve loop.
2. hydraulic pressure switch control valve according to claim 1 is characterized in that, said pilot valve loop is a fluid channel loop, has a damping hole, said damping hole to be positioned on the main valve plug (1) in this loop, is communicated with the epicoele and the cavity of resorption of main valve plug (1).
3. hydraulic pressure switch control valve according to claim 1 and 2; It is characterized in that; All sealings, employing TX engineering plastics seal ring seal between main valve plug (1) and main valve body (13) especially between main valve plug (1) and the main valve body (13), between guide's valve body (4) and the main valve plug (1), between pilot valve core (9) and the valve gap (10), between guide's valve body (4) and the main valve body (13), between valve gap (10) and the main valve body (13).
4. hydraulic pressure switch control valve according to claim 1 and 2 is characterized in that, main valve plug (1) adopts the fine reinforced polyether ether ketone of 30% carbon to process, and is pressed on the valve seat orifice of main valve body (13) by main spool spring (3).
5. hydraulic pressure switch control valve according to claim 1 and 2 is characterized in that, it also comprises handle (7), and handle (7) is connected with guide's spool (9), and rotating handles (7) can make guide's spool (9) open or close.
6. hydraulic pressure switch control valve according to claim 1 and 2 is characterized in that, guide's valve body (4) and valve gap (10) all are tightened on the main valve body (13) through screw thread, and guide's spool (9) is also through being threaded in the valve gap (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101543340A CN102817877A (en) | 2011-06-09 | 2011-06-09 | Water switch control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101543340A CN102817877A (en) | 2011-06-09 | 2011-06-09 | Water switch control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102817877A true CN102817877A (en) | 2012-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101543340A Pending CN102817877A (en) | 2011-06-09 | 2011-06-09 | Water switch control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102817877A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453188A (en) * | 2013-09-12 | 2013-12-18 | 无锡海德曼医疗设备有限公司 | Water pressure switch |
| CN105570473A (en) * | 2016-02-24 | 2016-05-11 | 湖北仁创科技有限公司 | High-pressure water-mist pilot-operated type non-hydraulic damping electromagnetic distribution valve |
| CN105587705A (en) * | 2016-01-29 | 2016-05-18 | 太仓市微贯机电有限公司 | Scraping resisting and corrosion resisting pressure stabilizing valve |
| CN106151145A (en) * | 2016-08-27 | 2016-11-23 | 中国煤炭科工集团太原研究院有限公司 | The pressure pilot operated directional control valve in a kind of water route |
| CN106838433A (en) * | 2017-03-23 | 2017-06-13 | 湖南普林斯流体设备制造有限公司 | A kind of big oral pore footpath zero leakage magnetic valve |
| CN111120698A (en) * | 2019-12-18 | 2020-05-08 | 中国航空工业集团公司西安飞行自动控制研究所 | Pilot valve and main valve integrated valve combination |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3318246A1 (en) * | 1983-05-19 | 1984-11-22 | Mannesmann Rexroth GmbH, 8770 Lohr | Pressure limiting valve |
| CN2232520Y (en) * | 1995-06-12 | 1996-08-07 | 浙江瑞安永久机电厂 | Hand normal open electromagnetism valve |
| CN2625629Y (en) * | 2003-05-30 | 2004-07-14 | 华中科技大学 | Seawater hydraulic pressure flow control valve |
| CN2729386Y (en) * | 2004-08-04 | 2005-09-28 | 浙江大学 | Guide water hydraulic relief valve |
| CN101893010A (en) * | 2009-05-21 | 2010-11-24 | 上海立新液压有限公司 | Hydraulic balanced valve |
| CN202118020U (en) * | 2011-06-09 | 2012-01-18 | 华中科技大学 | Water pressure switch control valve |
-
2011
- 2011-06-09 CN CN2011101543340A patent/CN102817877A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3318246A1 (en) * | 1983-05-19 | 1984-11-22 | Mannesmann Rexroth GmbH, 8770 Lohr | Pressure limiting valve |
| CN2232520Y (en) * | 1995-06-12 | 1996-08-07 | 浙江瑞安永久机电厂 | Hand normal open electromagnetism valve |
| CN2625629Y (en) * | 2003-05-30 | 2004-07-14 | 华中科技大学 | Seawater hydraulic pressure flow control valve |
| CN2729386Y (en) * | 2004-08-04 | 2005-09-28 | 浙江大学 | Guide water hydraulic relief valve |
| CN101893010A (en) * | 2009-05-21 | 2010-11-24 | 上海立新液压有限公司 | Hydraulic balanced valve |
| CN202118020U (en) * | 2011-06-09 | 2012-01-18 | 华中科技大学 | Water pressure switch control valve |
Non-Patent Citations (1)
| Title |
|---|
| 唐群国 等: "一种先导式纯水液压电磁开关阀的研制", 《液压与气动》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453188A (en) * | 2013-09-12 | 2013-12-18 | 无锡海德曼医疗设备有限公司 | Water pressure switch |
| CN103453188B (en) * | 2013-09-12 | 2015-07-29 | 无锡海德曼医疗设备有限公司 | Hydraulic pressure switch |
| CN105587705A (en) * | 2016-01-29 | 2016-05-18 | 太仓市微贯机电有限公司 | Scraping resisting and corrosion resisting pressure stabilizing valve |
| CN105570473A (en) * | 2016-02-24 | 2016-05-11 | 湖北仁创科技有限公司 | High-pressure water-mist pilot-operated type non-hydraulic damping electromagnetic distribution valve |
| CN106151145A (en) * | 2016-08-27 | 2016-11-23 | 中国煤炭科工集团太原研究院有限公司 | The pressure pilot operated directional control valve in a kind of water route |
| CN106151145B (en) * | 2016-08-27 | 2018-06-22 | 中国煤炭科工集团太原研究院有限公司 | A kind of water route pressure resistance pilot operated directional control valve |
| CN106838433A (en) * | 2017-03-23 | 2017-06-13 | 湖南普林斯流体设备制造有限公司 | A kind of big oral pore footpath zero leakage magnetic valve |
| CN111120698A (en) * | 2019-12-18 | 2020-05-08 | 中国航空工业集团公司西安飞行自动控制研究所 | Pilot valve and main valve integrated valve combination |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121212 |