CN201297397Y - Water pressure driving valve - Google Patents

Water pressure driving valve Download PDF

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Publication number
CN201297397Y
CN201297397Y CNU2008201659694U CN200820165969U CN201297397Y CN 201297397 Y CN201297397 Y CN 201297397Y CN U2008201659694 U CNU2008201659694 U CN U2008201659694U CN 200820165969 U CN200820165969 U CN 200820165969U CN 201297397 Y CN201297397 Y CN 201297397Y
Authority
CN
China
Prior art keywords
valve
spool
water
seal ring
valve core
Prior art date
Application number
CNU2008201659694U
Other languages
Chinese (zh)
Inventor
张希建
张建中
谭斌
樊雄
谭永文
Original Assignee
杭州水处理技术研究开发中心有限公司
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 杭州水处理技术研究开发中心有限公司 filed Critical 杭州水处理技术研究开发中心有限公司
Priority to CNU2008201659694U priority Critical patent/CN201297397Y/en
Application granted granted Critical
Publication of CN201297397Y publication Critical patent/CN201297397Y/en

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Abstract

The utility model provides a water pressure driving valve comprising a valve body. The upper end of the valve body is connected with a valve cap; the valve cap is sealed with the valve body; water out/in passages are arranged in the valve cap; a valve core is arranged in the valve body; a spring is arranged between the valve core and the valve cap; the lower end of the valve core is of a tapered structure; a valve core seat matched with the tapered structure is arranged on the valve body; water out/in passages are arranged on the valve body below and above the valve core seat respectively; and the valve body is sealed with the valve core above the water out/in passages above the valve core seat. The utility model has the advantages of simple and compact structure, reliable operation, energy conservation, environmental protection and long service life, can use natural seawater or fresh water as an actuating medium directly, and can be widely used in the design and the manufacture of high pressure and great flow hydraulic pressure systems.

Description

A kind of hydraulic drives valve
Technical field
The utility model relates to a kind of hydraulic valve.
Background technique
After the eighties in 20th century, because the appearance of environmental protection requirement and oil crisis, the hydraulic drives technology has caused people's attention.The hydraulic drives valve is the important directions control valve of hydraulic pressure system; with compare as the hydrovalve of working medium with oil; directly with natural sea-water or fresh water as the water hydraulic drive technology of hydraulic medium have safety, with characteristics such as environmentally compatible, energy-conservation, economy, health; can satisfy people to greatest extent for the craving for of aspects such as safety, energy economy ﹠ environment protection, meet the needs of human kind sustainable development.
The water hydraulic components of China mainly concentrates on mesolow, middle small flow, the water hydraulic components of high-pressure high-flow exploitation less, and the water hydraulics of high-pressure high-flow one of the developing direction of pure water hydraulics transmission from now on exactly.But because water and the difference of mineral oil aspect physical and chemical performance, low as viscosity, pressure for vaporization is high and corrosivity is strong etc., problem such as make hydraulic valve be faced with cavitation erosion and wire drawing is corroded seriously, material corrosion, leakage are big.China's hydraulic drives valve is still continued to use the hydraulic cartridge valve structure basically, and complex structure is easy to wear, easily leaks, and influences system works efficient.
Summary of the invention
Technical problem to be solved in the utility model provide a kind of can be directly with natural sea-water or fresh water hydraulic drives valve as working medium.Therefore, the utility model is by the following technical solutions: it comprises valve body, described valve body upper end connects valve gap, seal between valve body and the valve gap, be provided with the discrepancy water channel in the valve gap, be provided with spool in the described valve body, be provided with spring between spool and the valve gap, the spool lower end is a cone structure, and valve body is provided with the valve core case that matches with this cone structure, valve body below the valve core case and above be respectively equipped with the discrepancy water channel; Above the discrepancy water channel above the valve core case, described valve body also and between the spool seals.
By above technological scheme, the utility model is simple and compact for structure, reliable operation, energy-conserving and environment-protective, long service life, can be directly with natural sea-water or fresh water as working medium, can be widely used in the design of high pressure, big flow hydraulic pressure system with in making.
Description of drawings
Fig. 1 is a longitudinal sectional view of the present utility model.
Fig. 2 is an I of the present utility model place enlarged view.
Fig. 3 is when adopting cross section to be the rubber seal of circle, I of the present utility model place enlarged view.
Embodiment
With reference to accompanying drawing, the utility model comprises valve body 3, connects valve gap 1 on the valve body 3, and is airtight between valve body 3 and the valve gap 1.In the present embodiment, for being threaded, be provided with seal ring 2 between them between valve body 3 and the valve gap 1.
Valve gap 1 is provided with the discrepancy water channel 8, be provided with spool 6 in the valve body 3, be provided with spring 4 between spool 6 and the valve gap 1, spool 6 lower ends are cone structure 12, valve body 3 is provided with the valve core case 9 that matches with this cone structure, valve body 3 is provided with the water channel 10 of coming in and going out below valve core case, valve body 3 is provided with the water channel 11 of coming in and going out above valve core case.Above the discrepancy water channel above the valve core case, one or multi-channel combined seal ring 5 described valve body of sealing and spools are installed on the valve body 3, valve body 3 is divided into two different pressure chambers, be respectively guide's control chamber and active chamber, can be by control mouthful C, the keying of adopting hydraulic drives spool 6 to come control valve.
Combined seal ring 5 is made up of wear-resisting engineering plastics circle 13 and rubber seal 14, and described wear-resisting engineering plastics seal ring is in the inboard of rubber seal, and the cross section of rubber seal 14 is a grooved, and its opening makes progress, and it can adopt nitrile rubber.The material of spool 6 is rigid non-metallic material, it adopts the lightweight engineered plastics to make in the present embodiment, be specially the polyoxymethylene material, adopt the spool 6 and the combined seal ring 5 of lightweight engineered plastics to constitute friction pair, like this, make the utility model good sealing effect also very wear-resisting, the life-span can prolong greatly.The utility model quality is little, inertia is little, and stroke is short, and noise is little, so it is active in one's movements, responds soon, can be applicable to better with the working environment of water as hydraulic transmission medium.In addition, spool 6 also can be only with combined seal ring 5 cooperation places be the lightweight engineered plastics, such spool 6 also can constitute good sealing effects and very wear-resisting friction pairs with combined seal ring 5.
Referring to Fig. 3, in the combined seal ring 5, it is circular rubber seal that described rubber seal 14 also adopts cross section.
Also be provided with the seal ring 7 that spool and valve core case are sealed on the cone structure 12 that spool cooperates with valve core case, seal ring 2,7 adopts nitrile rubbers.Valve body, valve gap can adopt the 316L stainless steel.
In the utility model, spool 6 adopts the cone structure of band soft seal in the utility model, because sealing surface is taper, it has certain leading role, the targeting part of spool 6 can guarantee the accuracy that spool 6 moves up and down, certain self-align compensate function is arranged simultaneously, reduce processing request and cost greatly, soft seal can guarantee airtight performance well.Cone valve mouth flow passage resistance is little, through-current capability is big, is 60 ° with the cone angle design of spool 6, in briny environment, can prevent because of cause stuck of impurity in the water and microorganism well and stops up, and is applicable to high pressure, big flow hydraulic pressure system.
When the utility model uses, can be by controlling the keying that mouthful C comes control valve.If: the pressure of A, B, C port and active area thereof are respectively P A, P B, PC and A 1, A 2, A3, and A 1+A2=A3, Ps are acting force of the spring.As the momentum of the weight of not considering spool 6 and liquid stream, then valve port is opened when P A A 1+PB A 2〉PC A3+Ps, A, B connection.
As the logical press water of A mouth of valve, when the B mouth is delivery outlet, just then change the output of the pressure may command B mouth of control mouthful C.When the draining of control mouth C water receiving case, then A, B connect; As the logical pilot pressure PC of control mouthful C, and PC A3+Ps〉during P A A 1+P B A 2, spool is closed, and then A, B are obstructed.
To sum up, the utility model adopts hydraulic drives, simple in structure, reliable operation, through-current capability be big, leak less, corrosion resistant, be active in one's movements, antipollution power is strong, energy-conserving and environment-protective, long service life, Maintenance and Repair are convenient, is applicable to high pressure, big flow hydraulic pressure system.
At last, it is also to be noted that, more than only be embodiment of the present utility model.Obviously, mode of execution of the present utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.

Claims (5)

1, a kind of hydraulic drives valve, comprise valve body, it is characterized in that described valve body upper end connects valve gap, seal between valve body and the valve gap, be provided with the discrepancy water channel in the valve gap, be provided with spool in the described valve body, be provided with spring between spool and the valve gap, the spool lower end is a cone structure, and valve body is provided with the valve core case that matches with this cone structure, valve body below the valve core case and above be respectively equipped with the discrepancy water channel; Above the discrepancy water channel above the valve core case, described valve body also and between the spool seals.
2, a kind of hydraulic drives valve as claimed in claim 1 is characterized in that spool adopts the lightweight engineered plastics, and valve body, valve gap adopt corrosion-resistant metal materials.
3, a kind of hydraulic drives valve as claimed in claim 1 is characterized in that also being provided with on the cone structure of described spool lower end the seal ring with the valve core case sealing.
4, a kind of hydraulic drives valve as claimed in claim 1, it is characterized in that also being provided with on the described valve body with seal spool, by the combined seal ring that engineering plastics seal ring and rubber seal are formed, described engineering plastics seal ring is in the inboard of rubber seal.
5, a kind of hydraulic drives valve as claimed in claim 4, the surface of contact material that it is characterized in that described spool and described combined seal ring are engineering plastics and and combined seal ring formation friction pair.
CNU2008201659694U 2008-10-23 2008-10-23 Water pressure driving valve CN201297397Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201659694U CN201297397Y (en) 2008-10-23 2008-10-23 Water pressure driving valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201659694U CN201297397Y (en) 2008-10-23 2008-10-23 Water pressure driving valve

Publications (1)

Publication Number Publication Date
CN201297397Y true CN201297397Y (en) 2009-08-26

Family

ID=41043377

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201659694U CN201297397Y (en) 2008-10-23 2008-10-23 Water pressure driving valve

Country Status (1)

Country Link
CN (1) CN201297397Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102384292A (en) * 2011-11-15 2012-03-21 南京航空航天大学 Pilot-operated temperature-regulating speed-regulating valve and spraying system device
CN102943898A (en) * 2012-11-18 2013-02-27 苏州蓝王机床工具科技有限公司 Structure of valve for quick air intake and exhaust
CN104373647A (en) * 2014-11-29 2015-02-25 中国船舶重工集团公司第七�三研究所 Lubricating oil low-pressure protecting device
CN106439131A (en) * 2016-11-29 2017-02-22 常州博赢模具有限公司 Pressure relief valve
CN107965498A (en) * 2016-10-20 2018-04-27 北京精密机电控制设备研究所 A kind of non-leakage multifunction safety valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102384292A (en) * 2011-11-15 2012-03-21 南京航空航天大学 Pilot-operated temperature-regulating speed-regulating valve and spraying system device
CN102384292B (en) * 2011-11-15 2013-01-23 南京航空航天大学 Pilot-operated temperature-regulating speed-regulating valve and spraying system device
CN102943898A (en) * 2012-11-18 2013-02-27 苏州蓝王机床工具科技有限公司 Structure of valve for quick air intake and exhaust
CN104373647A (en) * 2014-11-29 2015-02-25 中国船舶重工集团公司第七�三研究所 Lubricating oil low-pressure protecting device
CN107965498A (en) * 2016-10-20 2018-04-27 北京精密机电控制设备研究所 A kind of non-leakage multifunction safety valve
CN106439131A (en) * 2016-11-29 2017-02-22 常州博赢模具有限公司 Pressure relief valve

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

Granted publication date: 20090826

Termination date: 20171023

CF01 Termination of patent right due to non-payment of annual fee