CN202118020U - Water pressure switch control valve - Google Patents

Water pressure switch control valve Download PDF

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Publication number
CN202118020U
CN202118020U CN2011201929642U CN201120192964U CN202118020U CN 202118020 U CN202118020 U CN 202118020U CN 2011201929642 U CN2011201929642 U CN 2011201929642U CN 201120192964 U CN201120192964 U CN 201120192964U CN 202118020 U CN202118020 U CN 202118020U
Authority
CN
China
Prior art keywords
valve
main
main valve
valve body
pilot
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN2011201929642U
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Chinese (zh)
Inventor
唐群国
孙旭东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huazhong University of Science and Technology
Original Assignee
Huazhong University of Science and Technology
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 Huazhong University of Science and Technology filed Critical Huazhong University of Science and Technology
Priority to CN2011201929642U priority Critical patent/CN202118020U/en
Application granted granted Critical
Publication of CN202118020U publication Critical patent/CN202118020U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a water pressure switch control valve, which comprises a main valve element, a main valve body, a valve cover, a valve element of a pilot valve and a pilot valve body. The pilot valve body is arranged between the main valve element and the valve cover. The valve element of the pilot valve penetrates through the valve cover to be pressed on the pilot valve body. The main valve element, the pilot valve body and the main valve body form a pilot valve loop, and the valve element of the pilot valve controls opening and closing of the pilot valve loop. A damping hole is arranged in the pilot valve loop and located on the main valve element to be communicated with an upper cavity and a lower cavity of the main valve element. The switch valve adopts the pilot structure to enable the opening and the closing of the valve to be stable. The main valve element adopts a flat valve structure, and the pilot valve adopts a cone valve structure, thereby being good in sealing performance. The pressure difference formed by the fact that before water passes though the damping hole and after the water passes through the damping hole is acted on the main valve element, and a main valve opening is opened, thereby being favorable for reducing opening control force. The water pressure switch control valve is especially suitable for places with high system pressure and large flow quantity.

Description

A kind of hydraulic pressure switch control valve
Technical field
The utility model relates to a kind of hydraulic pressure switch control valve that uses in the water hydraulic transmission system, is specially adapted to the occasion of high-pressure high-flow, is 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.
The model utility content
The utility model 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 utility model 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 utility model is compared existing straight ejector half hydraulic pressure switch valve and is had 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 the described hydraulic pressure switch control valve of the utility model.
Embodiment
Specify the technological scheme of the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, the described hydraulic pressure switch control valve of the utility model 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 the described hydraulic pressure switch control valve of the utility model, 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 utility model not only is confined to above-mentioned embodiment; Persons skilled in the art are according to the disclosed content of the utility model; Can adopt other multiple embodiment to implement the utility model, therefore, project organization of every employing the utility model and thinking; Do some simple designs that change or change, all fall into the scope of the utility model 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).
CN2011201929642U 2011-06-09 2011-06-09 Water pressure switch control valve Expired - Fee Related CN202118020U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201929642U CN202118020U (en) 2011-06-09 2011-06-09 Water pressure switch control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201929642U CN202118020U (en) 2011-06-09 2011-06-09 Water pressure switch control valve

Publications (1)

Publication Number Publication Date
CN202118020U true CN202118020U (en) 2012-01-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201929642U Expired - Fee Related CN202118020U (en) 2011-06-09 2011-06-09 Water pressure switch control valve

Country Status (1)

Country Link
CN (1) CN202118020U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102817877A (en) * 2011-06-09 2012-12-12 华中科技大学 Water switch control 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
CN108916457A (en) * 2018-07-14 2018-11-30 东莞海特帕沃液压科技有限公司 A kind of two-way shut-off valve of electromagnetism-hand-operated double controlled

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102817877A (en) * 2011-06-09 2012-12-12 华中科技大学 Water switch control 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
CN108916457A (en) * 2018-07-14 2018-11-30 东莞海特帕沃液压科技有限公司 A kind of two-way shut-off valve of electromagnetism-hand-operated double controlled

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120118

Termination date: 20150609

EXPY Termination of patent right or utility model