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CN105422938A - Flow regulating valve - Google Patents

Flow regulating valve Download PDF

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Publication number
CN105422938A
CN105422938A CN201510867826.2A CN201510867826A CN105422938A CN 105422938 A CN105422938 A CN 105422938A CN 201510867826 A CN201510867826 A CN 201510867826A CN 105422938 A CN105422938 A CN 105422938A
Authority
CN
China
Prior art keywords
spool
valve
valve body
closure bar
cover plate
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.)
Granted
Application number
CN201510867826.2A
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Chinese (zh)
Other versions
CN105422938B (en
Inventor
杨小理
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.)
Heitek Power Co., Ltd.
Original Assignee
HIGH-TECH FLUID POWER Co Ltd
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 HIGH-TECH FLUID POWER Co Ltd filed Critical HIGH-TECH FLUID POWER Co Ltd
Priority to CN201510867826.2A priority Critical patent/CN105422938B/en
Publication of CN105422938A publication Critical patent/CN105422938A/en
Application granted granted Critical
Publication of CN105422938B publication Critical patent/CN105422938B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20Excess-flow valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Sliding Valves (AREA)

Abstract

The invention relates to a flow regulating valve which comprises a valve body, a valve element inserted into the valve body and a valve seat. A valve element hole where the valve element is placed is formed in the valve body. The valve body is provided with a flow inlet and a flow outlet. An inlet channel between the flow inlet and the valve element is provided with two or more annular openings for dividing the inlet channel. An outlet channel between the flow outlet and the valve element is provided with two or more annular openings for dividing the outlet channel. The annular openings are sequentially distributed in a crossed and spaced manner in the direction of the valve element. The annular openings are set as circulating segments and the interval portions are set as sealed segments. Due to the fact that the two or more annular openings for being communicated with divided channel bodies are formed in the valve element, and after the annular openings are formed, a medium can flow through the annular openings; and through the divided channel bodies, the technical effect that the medium is divided after entering the channels is achieved, and too large fluid power and instant impact force are relieved.

Description

A kind of flow control valve
Technical field
The present invention relates to a kind of valve, especially one is applied to single channel valve, and flow can the flow control valve of proportion adjustment.
Background technique
Plunger valve is made up of parts such as valve body, valve gap, valve rod, plunger, aperture frame, seal ring, handwheels.When handwheel rotates, drive plunger in the open and close function of the middle valve that pumped of aperture frame by valve rod.Interference fit is adopted between plunger and seal ring in valve, by regulating flange bolt in gland, the lateral force and valve body mesopore face that seal ring are compressed produce and plunger cylindrical seal, thus ensure that the sealing of valve, stop internal and outernal leakage, simultaneously valve opening moment little, valve can have been realized and open and close rapidly.Its size of the peak rate of flow that can bear is certain, and when flow is excessive, when exceeding the tolerance range of valve, usually can cause following problem, 1, liquid breaks through valve instantaneously, causes impact force too high, damage threshold door part.2, hydraulic power is excessive, spool can be caused to close, cannot use valve normally.
Summary of the invention
For solving the problems of the technologies described above, the present invention includes valve body, be inserted in the spool in valve body, and valve seat, the spool bore of laying for spool is provided with in described valve body, described valve body is provided with fluid inlet and flowexit, inlet channel between described fluid inlet and spool is provided with two or more annular openings inlet channel shunted, described flowexit and and spool between outlet passage be provided with two or more annular openings shunted by registered permanent residence runner, described annular opening distributes along spool direction successively transpostion interval, and annular opening place is set to circulation section, interval is set to seal section.
After have employed said structure, because spool is provided with two or more for being communicated with the annular opening of split channel, after being provided with annular opening, medium can flow through from annular opening, by the setting of multiple split channel, the technique effect shunted after realizing medium inlet passage, to slow down excessive hydraulic power and instantaneous impact.
As a further improvement on the present invention, described circulation section is for being arranged at the circular groove on spool, described valve body is interior is that axle both sides are provided with two closure bar relatively with spool, be respectively left closure bar and right closure bar, described closure bar is identical towards arranging with spool, and be fixedly arranged between fluid inlet and flowexit, liquid medium can be split into multiple split channel by described closure bar, under valve shut state, the seal section of described closure bar and spool mutually against, and the length of closure bar is greater than the length of circulation section on spool.
After have employed said structure, closure bar not only plays the technique effect closed with circulation, also serve the technique effect forming split channel, and the length setting of closure bar is greater than the length setting of circulation section on spool, then the sequencing can closed for realizing split channel and open provide precondition.
As a further improvement on the present invention, the outside upper/lower terminal near spool of described valve body is respectively equipped with upper cover plate and lower cover plate, described lower cover plate is fixed on valve body lower end, and spool bore is closed, and described spool one end is stretched out outside valve body through the upper cover plate of spool.
After have employed said structure, upper cover plate and arranging of lower cover plate can make spool spacing, make it can not deviate from from spool bore.
As a further improvement on the present invention, described spool face is provided with an inlet opening, and described inlet opening is communicated with valve core inside, and described body base is provided with the liquid outlet channel flowed out by the medium in valve core inside.
After have employed said structure, arranging of inlet opening can prevent leakage of oil.
Described seal spool section is provided with a current limliting groove as a further improvement on the present invention, and described current limliting groove is semi-circular or triangular opening, and described opening is communicated with spool circular groove.
After have employed said structure, current limliting groove the instantaneous pressure that can reduce medium to a certain extent and flow through is set.
Accompanying drawing explanation
figure 1 shows that sectional drawing under this flow control valve valve-closed state;
figure 2 shows that sectional drawing under this flow control valve valve opening state.
Embodiment
As shown in Figure 1, the invention provides a kind of flow control valve and comprise valve body 1, be inserted in the spool 2 in valve body 1, and valve seat, the spool bore of laying for spool is provided with in described valve body 1, described valve body is provided with fluid inlet 31 and flowexit 32, inlet channel between described fluid inlet 31 and spool 2 is provided with two or more annular openings inlet channel shunted, described flowexit and and spool between outlet passage be provided with two or more annular openings shunted by registered permanent residence runner, described annular opening distributes along spool direction successively transpostion interval, and annular opening place is set to circulation section, interval is set to seal section.Each split channel described is all installed with near spool 2 place and coordinates jointly for controlling the closure bar 4 that each split channel opens and closes with spool 2, described valve is in opening process, spool 2 can depart from each closure bar 4 respectively gradually, described valve is in closing process, spool 2 can seal with each closure bar 4 respectively gradually, described in have the contacting travel between one or more closure bar 4 and spool 2 to be greater than the contacting travel of other closure bar and valve core chamber.Owing to being provided with split channel and being located at the closure bar 4 that split channel coordinates jointly with spool, so, this flow control valve can rely on spool 2 and closure bar 4 with the use of, rely on spool 2 and the closed gradually of closure bar 4 and disengaging, play Slow Close and the slow technique effect opened, and have the contacting travel between one or more closure bar 4 and spool 2 to be greater than the contacting travel of other closure bar and valve core chamber.Just can realize the distance according to contacting travel after arranging like this, decide the sequencing that each split channel is closed and opened, just can reach the technique effect of proportion adjustment.Described spool comprises seal section 5 and circulation section 6, described circulation section 6 is located at valve core outer surface for circumference, diameter is less than the groove of seal section 5, described seal section 5 is the flange that circumference is located at valve core outer surface, described medium circulates by this circulation section 6, described closure bar is fixedly arranged on the flow area of circulation section, and forms the sealing surface that cut-off MEDIA FLOW enters the section of circulation.Characteristic due to plunger valve can arrange several seal sections and circulation section, by moving up and down of spool 2, medium can be switched in seal section and circulation section, and the setting of closure bar, then serve the technique effect circulated with spool co-controlling medium.
As shown in Fig. 1 Fig. 2, described closure bar 4 is identical towards arranging with spool 2, and be fixedly arranged between fluid inlet and flowexit, liquid medium can be split into multiple split channel 7 by described closure bar, under valve shut state, the seal section of described closure bar and spool mutually against, and the length of closure bar arranges and is greater than the length of circulation section on spool and arranges.Closure bar not only plays the technique effect closed with circulation, also serve the technique effect forming split channel, and the length setting of closure bar is greater than the length setting of circulation section on spool, then the sequencing can closed for realizing split channel and open provide precondition.Described valve is interior is that axle is provided with two closure bar relatively with spool, be respectively left closure bar 41 and right closure bar 42, inlet passage and outlet passage are split into import split channel and outlet manifold passage by described two closure bar respectively, the length distance of each circulation section described on spool is equal, described closure bar is the flat boards of two ends with projection 43, two ends projection 43 on described flat board is when valve closing, respectively on corresponding spool with this flat board against circulation section upper, lower two ends, projection in described left closure bar 41 and the contacting travel of valve core chamber are greater than the contacting travel of projection in right closure bar 42 43 and valve core chamber.Above embodiment is for being provided with two closure bar, bring the effect of two feed pathway and two liquid outlet channels, and projection and closure bar mutually against, serve the technique effect of good sealing effect, and after the contacting travel being greater than projection in right closure bar and valve core chamber when the contacting travel of the projection be provided with in left closure bar and valve core chamber, just can realize flow first from the circulation section of the split channel right closure bar through spool, flow out again, afterwards along with the movement of spool, projection in left closure bar no longer stops the circulation of circulation section, now, medium just can from two of a spool circulation section circulation.
As shown in Figure 2, described spool face is provided with an inlet opening 7, and described inlet opening 7 is communicated with spool 2 inside, and described body base is provided with the liquid outlet channel 8 flowed out by the medium in valve core inside.Arranging of inlet opening can prevent leakage of oil.Described seal section is provided with a current limliting groove 9, and described current limliting groove 9 is semi-circular opening, and the opening of described semi-circular opening is vertically towards body base.Current limliting groove the instantaneous pressure that can reduce medium to a certain extent and flow through is set, the outside upper/lower terminal near spool of described valve body is respectively equipped with upper cover plate 10 and lower cover plate 11, described lower cover plate 11 is fixed on valve body lower end, and spool bore is closed, described spool one end is stretched out outside valve body through the upper cover plate 10 of spool.

Claims (6)

1. a flow control valve, comprise valve body, be inserted in the spool in valve body, and valve seat, the spool bore of laying for spool is provided with in described valve body, described valve body is provided with fluid inlet and flowexit, it is characterized in that: the inlet channel between described fluid inlet and spool is provided with two or more annular openings inlet channel shunted, described flowexit and and spool between outlet passage be provided with two or more annular openings shunted by registered permanent residence runner, described annular opening distributes along spool direction successively transpostion interval, and annular opening place is set to circulation section, interval is set to seal section.
2. flow control valve according to claim 1, it is characterized in that: described circulation section is for being arranged at the circular groove on spool, described valve body is interior is that axle both sides are provided with two closure bar relatively with spool, be respectively left closure bar and right closure bar, described closure bar is identical towards arranging with spool, and be fixedly arranged between fluid inlet and flowexit, liquid medium can be split into multiple split channel by described closure bar, under valve shut state, the seal section of described closure bar and spool mutually against, and the length of closure bar is greater than the length of circulation section on spool.
3. flow control valve according to claim 1, it is characterized in that: the outside upper/lower terminal near spool of described valve body is respectively equipped with upper cover plate and lower cover plate, described lower cover plate is fixed on valve body lower end, and spool bore is closed, described spool one end is stretched out outside valve body through the upper cover plate of spool.
4. flow control valve according to claim 1, is characterized in that: described lower cover plate upper end is provided with Returnning spring, and described Returnning spring one end is resisted against lower cover plate upper end, and the other end is resisted against spool lower end.
5. the flow control valve according to claim 1 and 2, is characterized in that: described spool face is provided with an inlet opening, and described inlet opening is communicated with valve core inside, and described body base is provided with the liquid outlet channel flowed out by the medium in valve core inside.
6. the flow control valve according to claim 1 and 2, is characterized in that: described seal spool section is provided with a current limliting groove, and described current limliting groove is semi-circular or triangular opening, and described opening is communicated with spool circular groove.
CN201510867826.2A 2015-12-01 2015-12-01 A kind of flow control valve Active CN105422938B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510867826.2A CN105422938B (en) 2015-12-01 2015-12-01 A kind of flow control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510867826.2A CN105422938B (en) 2015-12-01 2015-12-01 A kind of flow control valve

Publications (2)

Publication Number Publication Date
CN105422938A true CN105422938A (en) 2016-03-23
CN105422938B CN105422938B (en) 2017-10-20

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107387837A (en) * 2017-09-18 2017-11-24 宝鸡泰华磁机电技术研究所有限公司 With the medium runner structure for preventing valve cavity precipitation dregs
CN107939998A (en) * 2017-11-07 2018-04-20 甘肃腾越电子科技有限公司 A kind of shutoff type valve

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN88210090U (en) * 1988-01-27 1988-09-21 沈阳市玛钢厂 Bidirectional explosion-proof electromagnetic stop valve
US6286550B1 (en) * 1996-10-31 2001-09-11 Yamatake Corporation Valve apparatus
CN201739525U (en) * 2010-07-26 2011-02-09 杭州浙临阀门有限公司 Elastic dual-sealing steam pressure-reducing valve
CN202152857U (en) * 2011-05-19 2012-02-29 浙江科海仪表有限公司 Double valve seat adjustable valve
CN202937823U (en) * 2012-11-22 2013-05-15 江苏宇达电站辅机阀门制造有限公司 Zero leakage regulating valve with double valve seats
CN205190863U (en) * 2015-12-01 2016-04-27 海特克液压有限公司 Flow control valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN88210090U (en) * 1988-01-27 1988-09-21 沈阳市玛钢厂 Bidirectional explosion-proof electromagnetic stop valve
US6286550B1 (en) * 1996-10-31 2001-09-11 Yamatake Corporation Valve apparatus
CN201739525U (en) * 2010-07-26 2011-02-09 杭州浙临阀门有限公司 Elastic dual-sealing steam pressure-reducing valve
CN202152857U (en) * 2011-05-19 2012-02-29 浙江科海仪表有限公司 Double valve seat adjustable valve
CN202937823U (en) * 2012-11-22 2013-05-15 江苏宇达电站辅机阀门制造有限公司 Zero leakage regulating valve with double valve seats
CN205190863U (en) * 2015-12-01 2016-04-27 海特克液压有限公司 Flow control valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107387837A (en) * 2017-09-18 2017-11-24 宝鸡泰华磁机电技术研究所有限公司 With the medium runner structure for preventing valve cavity precipitation dregs
CN107939998A (en) * 2017-11-07 2018-04-20 甘肃腾越电子科技有限公司 A kind of shutoff type valve
CN107939998B (en) * 2017-11-07 2024-03-29 甘肃腾越电子科技有限公司 Cut-off valve

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Effective date of registration: 20180205

Address after: Ju Guang Yuan Yue Le Xi Jie Lucheng District of Wenzhou City, Zhejiang Province, No. 156 325000

Patentee after: Wenzhou haiteke power Limited by Share Ltd

Address before: Ju Guang Yuan Yue Le Xi Jie Lucheng District of Wenzhou City, Zhejiang Province, No. 156 325000

Patentee before: High-tech Fluid Power Co., Ltd.

TR01 Transfer of patent right
CP01 Change in the name or title of a patent holder

Address after: No. 156 Yuelaixi Street, Lucheng District, Wenzhou City, Zhejiang Province, 325000

Patentee after: Heitek Power Co., Ltd.

Address before: No. 156 Yuelaixi Street, Lucheng District, Wenzhou City, Zhejiang Province, 325000

Patentee before: Wenzhou haiteke power Limited by Share Ltd

CP01 Change in the name or title of a patent holder