CN103090062A - One-way valve - Google Patents

One-way valve Download PDF

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Publication number
CN103090062A
CN103090062A CN2013100385724A CN201310038572A CN103090062A CN 103090062 A CN103090062 A CN 103090062A CN 2013100385724 A CN2013100385724 A CN 2013100385724A CN 201310038572 A CN201310038572 A CN 201310038572A CN 103090062 A CN103090062 A CN 103090062A
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CN
China
Prior art keywords
valve
guide portion
conical
way valve
valve body
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Granted
Application number
CN2013100385724A
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Chinese (zh)
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CN103090062B (en
Inventor
马友朝
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Minhou Fuyi Plastic Products Co Ltd
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Individual
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Priority to CN201310038572.4A priority Critical patent/CN103090062B/en
Publication of CN103090062A publication Critical patent/CN103090062A/en
Application granted granted Critical
Publication of CN103090062B publication Critical patent/CN103090062B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention provides a one-way valve which comprises a valve body. A main through hole is formed in the middle of the valve body and a valve element. A limiting device is fixedly arranged on the inner wall of the main through hole. The lower end face of the limiting device is a cone-shaped face. A position clamping part is fixedly arranged at the upper end of the valve body. The valve element comprises an upper guiding part, a cone-shaped part, a middle guiding part, an annular groove, a protruding shoulder and a lower guiding part, wherein the upper guiding part, the cone-shaped part, the middle guiding part, the annular groove, the protruding shoulder and the lower guiding part are fixedly connected in sequence. An elastic sealing device is arranged on the annular groove. The valve element is arranged in the main through hole in a sliding and sleeved mode. The elastic sealing device is not lower than the lower end cone-shaped face of the limiting device. The one-way valve is high in stability, high in sensitivity, not worn easily, good in sealing performance and long in service life.

Description

One-way valve
Technical field
The present invention relates to the valve field, particularly one-way valve.
Background technique
One-way valve claims again safety check or check valve, is used for preventing the reverse flow of fluid in pressure system or hydraulic system.As the liquid current control of high-pressure system the time, the characteristics that have pressure high (usually at 25MPa600MPa), frequency fast (usually reaching more than 120 beats/mins) due to liquid stream, frequent opening and closing action between spool and valve body, the as easy as rolling off a log inaccurate or Line of contact of contraposition that causes between valve body and spool weares and teares, and makes the sealing between the runner aperture of spool and valve body unstable; Show by experiment, the one-way valve of ordinary construction is spheric structure as spool, and only have an appointment 50,000 working life under the high pressure of 200MPa, and taper valve core is slightly good, is about 7.5 ten thousand times, all has short deficiency in working life.And in case spool or its working stability of valve body wearing and tearing considerable influence are difficult to again maintenance or change the component that damage, the one-way valve that can only more renew causes user cost high.
Solve this defective therefore be necessary to invent a kind of one-way valve.
Summary of the invention
The present invention proposes one-way valve, has solved one-way valve poor stability in prior art, and sensitivity is low, and is easy to wear, and sealing is poor, the defective that working life is short.
Technological scheme of the present invention is achieved in that
One-way valve comprises:
Is provided with main through hole in the middle of valve body, described valve body, is fixedly installed limit stoper on described main through-hole wall, described limit stoper lower end surface is conical surface, and described valve body upper end is fixedly installed screens section;
Spool, comprise the upper guide portion, tapered portion, middle guide portion, circular groove, convex shoulder and the lower guide portion that are fixedly connected sequentially, described circular groove is provided with elastic sealing device, described spool slidably is nested with in described main through hole, and described elastic sealing device is no more than described limit stoper lower end conical surface;
The valve pipe, described valve pipe hollow, described valve inner tube wall is provided with the draw-in groove that coordinates with described screens section, described valve body is nested with in described valve pipe, described valve outer wall and described valve inner tube wall fit tightly, described valve pipe lower end is fixed with the bottom with secondary through hole, be fixed with the supporting portion of hollow on described bottom, described supporting portion overcoat has elastic component, described lower guide portion is nested with in the described elastic element the other end, when described spool moved up and down, described lower guide portion lower end surface did not exceed the upper-end surface of described supporting portion.
Further, described elastic sealing device is O-ring seals.
Further, described upper guide portion upper end is conical, and described conical summit be circle, and on the described bottom under described lower guide portion, correspondence is provided with conical bore.
Further, described lower guide portion lower end is conical.
Further, described elastic element is the turriform spring.
Beneficial effect of the present invention is: formed by valve body, spool and valve pipe, and simple in structure, assembling is simple and cost is low; The setting of upper guide portion, middle guide portion, lower guide portion and supporting portion makes spool remain in the course of the work high concentricity, high sensitivity, and do not produce skew, prevent the friction between valve body and spool, guarantee one-way valve normal operation and sealing, the life-span of improving one-way valve; The setting of supporting portion also avoids lower guide portion and elastic element to produce in the course of the work interference, improves unidirectional Operating stability of valve.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the explosive view of one-way valve of the present invention;
Fig. 2 is the worm's eye view of valve pipe in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who obtains under the creative work prerequisite.
With reference to Fig. 1-2 one-way valve, comprising: valve body 1, described valve body 1 is provided with main through hole 13, is fixedly installed limit stoper 12 on described main through hole 13 inwalls, and described limit stoper 12 lower end surfaces are conical surface, and described valve body 1 upper end is fixedly installed screens section 11; Spool 2, comprise the upper guide portion 21, tapered portion 22, middle guide portion 23, circular groove 24, convex shoulder 26 and the lower guide portion 27 that are fixedly connected sequentially, described circular groove 24 is provided with elastic sealing device 25, described spool 2 slidably is nested with in described main through hole 13, and described elastic sealing device 25 is no more than described limit stoper 12 lower end conical surfaces; Valve pipe 4, described valve pipe 4 hollows, described valve inner tube wall is provided with the draw-in groove 41 that coordinates with described screens section 11, described valve body 1 is nested with in described valve pipe 4, described valve body 1 outer wall and described valve pipe 4 inwalls are fitted, described valve pipe 4 lower ends are fixed with the bottom 43 with secondary through hole 44, be fixed with the supporting portion 42 of hollow on described bottom 43, described supporting portion 42 overcoats have elastic component 3, described lower guide portion 27 is nested with in described elastic element 3 the other ends, when described spool 2 moved up and down, described lower guide portion 27 lower end surfaces did not exceed the upper-end surface of described supporting portion 42.
Limit stoper 12 of the present invention is for the position of limiting described spool 2, make described elastic sealing device 25 be no more than the lower end conical surface of described limit stoper 12, when described elastic element 3 with described spool 2 jack-up, when described elastic sealing device 25 contacts with described limit stoper 12 lower end conical surfaces, described limit stoper 12 seals, and the described elastic sealing device 25 that is arranged so that of conical surface still can keep sealability, good airproof performance when certain wearing and tearing occur.
When the present invention works, described spool 2 moves up and down, described upper guide portion 21 and described middle guide portion 23 are along described limit stoper 12 center line movements, described lower guide portion 27 is along described supporting portion 42 center line movements, the described spool that makes does not produce large skew in two ends Shang Xia 2, concentricity is high, produce friction when having reduced described valve body 1 with described spool 2 skew, avoid the sensitivity because of the frictional influence one-way valve, therefore increase unidirectional Operating stability of valve, sensitivity and life-span; Described elastic element 3 mainly plays the effect that described spool 2 is resetted; The described spool 2 in 42 pairs of described supporting portions plays positioning action, and the described elastic element 3 of the 42 pairs of overcoats in described supporting portion plays a supportive role; When one-way valve is closed, described elastic element 3 is with described spool 2 jack-up, described elastic sealing device 25 is contacted with described limit stoper 12 lower end conical surfaces, at this moment 25 pairs of described convex shoulders 26 of described elastic sealing device have the effect of a power, described convex shoulder 26 plays the effect of supporting and fixing described elastic sealing device 25, and described elastic element 3 one ends withstand on described convex shoulder 26, so described convex shoulder 26 also plays the effect of supporting described elastic element 3; Described tapered portion 22 can reduce fluid to the impact of described spool 2, and connect described upper guide portion 21 and described middle guide portion 23, play over effect, even in the situation that produce skew, when resetting, described tapered portion 22 is slided along described limit stoper 12 lower end conical surfaces and described limit stoper 12 inwalls, can make the very fast concentricity that restPoses of described spool 2, and reduce friction.
Arranging mainly to 25 location of described elastic sealing device and fixation of circular groove 24 of the present invention; Arranging of described screens section 11 and described draw-in groove 41 is mainly the position on described valve pipe 4 of fixing described valve body 1, also simple during assembling, in conjunction with fitting tightly of described valve body 1 outer wall and described valve pipe 4 inwalls, seal, prevent that fluid from flowing out through the gap of described valve body 1 and described valve pipe 4.
Further, described elastic sealing device 25 is O-ring seals.The O-ring seals low price, good seal performance, the user can select other elastic sealing device as required, as long as reach good airproof performance.
Further, described upper guide portion 21 upper ends are conical, and described conical summit be circle.Conical design can reduce fluid to the impact of spool, increases unidirectional Operating stability of valve.
Further, described lower guide portion 27 lower ends are conical, and on the described bottom 43 under described lower guide portion 27, correspondence is provided with conical bore (not shown).The orientation assemble when setting conical and conical bore of described lower guide portion 27 lower ends is convenient to produce.
In a nearly step, described elastic element 3 is the turriform spring.The spring low price, easy to assembly, turriform according to described supporting portion than the large design of described lower guide portion.
The present invention is comprised of valve body, spool and valve pipe, and is simple in structure, assembling is simple and cost is low; The setting of upper guide portion, middle guide portion, lower guide portion and supporting portion makes spool remain in the course of the work high concentricity, high sensitivity, and do not produce skew, prevent the friction between valve body and spool, guarantee one-way valve normal operation and sealing, the life-span of improving one-way valve; The setting of supporting portion also avoids lower guide portion and elastic element to produce in the course of the work interference, improves unidirectional Operating stability of valve.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (5)

1. one-way valve, is characterized in that, comprising:
Is provided with main through hole in the middle of valve body, described valve body, is fixedly installed limit stoper on described main through-hole wall, described limit stoper lower end surface is conical surface, and described valve body upper end is fixedly installed screens section;
Spool, comprise the upper guide portion, tapered portion, middle guide portion, circular groove, convex shoulder and the lower guide portion that are fixedly connected sequentially, described circular groove is provided with elastic sealing device, described spool slidably is nested with in described main through hole, and described elastic sealing device is no more than described limit stoper lower end conical surface;
The valve pipe, described valve pipe hollow, described valve inner tube wall is provided with the draw-in groove that coordinates with described screens section, described valve body is nested with in described valve pipe, described valve outer wall and described valve inner tube wall fit tightly, described valve pipe lower end is fixed with the bottom with secondary through hole, be fixed with the supporting portion of hollow on described bottom, described supporting portion overcoat has elastic component, described lower guide portion is nested with in the described elastic element the other end, when described spool moved up and down, described lower guide portion lower end surface did not exceed the upper-end surface of described supporting portion.
2. one-way valve as claimed in claim 1, is characterized in that, described elastic sealing device is O-ring seals.
3. one-way valve as claimed in claim 1, is characterized in that, described upper guide portion upper end is conical, and described conical summit be circle.
4. one-way valve as claimed in claim 1, is characterized in that, described lower guide portion lower end is conical, and on the described bottom under described lower guide portion, correspondence is provided with conical bore.
5. one-way valve as claimed in claim 1, is characterized in that, described elastic element is the turriform spring.
CN201310038572.4A 2013-01-31 2013-01-31 One-way valve Expired - Fee Related CN103090062B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310038572.4A CN103090062B (en) 2013-01-31 2013-01-31 One-way valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310038572.4A CN103090062B (en) 2013-01-31 2013-01-31 One-way valve

Publications (2)

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CN103090062A true CN103090062A (en) 2013-05-08
CN103090062B CN103090062B (en) 2015-04-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105587949A (en) * 2016-03-21 2016-05-18 温州天悦流体设备科技有限公司 Non-return valve capable of preventing leakage
CN106620961A (en) * 2015-10-30 2017-05-10 无锡沃骐医疗科技有限公司 Syringe
CN116007522A (en) * 2023-01-10 2023-04-25 安徽省亳州煤业有限公司 Mine channel deformation monitoring equipment and monitoring method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2921465A1 (en) * 1979-05-26 1981-01-29 Seppelfricke Geb Gmbh Water meter outlet and stop valve screw connection - has collar on stop ledge, and valve cone shaft near disc seal
CN2233015Y (en) * 1995-07-19 1996-08-14 杨进山 Check valve
JP2001099340A (en) * 1999-09-30 2001-04-10 Fujikura Rubber Ltd Check valve
US20040079418A1 (en) * 2001-03-22 2004-04-29 Christoph Weis Cartridge insert for a fluid line
CN201420884Y (en) * 2009-04-20 2010-03-10 厦门建霖工业有限公司 Flow regulating check valve
CN102207215A (en) * 2010-12-23 2011-10-05 厦门松霖科技有限公司 Water-saving non-return valve
CN202360819U (en) * 2011-12-16 2012-08-01 杭州春江阀门有限公司 Low-resistance check valve
CN203098963U (en) * 2013-01-31 2013-07-31 马友朝 One-way valve

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2921465A1 (en) * 1979-05-26 1981-01-29 Seppelfricke Geb Gmbh Water meter outlet and stop valve screw connection - has collar on stop ledge, and valve cone shaft near disc seal
CN2233015Y (en) * 1995-07-19 1996-08-14 杨进山 Check valve
JP2001099340A (en) * 1999-09-30 2001-04-10 Fujikura Rubber Ltd Check valve
US20040079418A1 (en) * 2001-03-22 2004-04-29 Christoph Weis Cartridge insert for a fluid line
CN201420884Y (en) * 2009-04-20 2010-03-10 厦门建霖工业有限公司 Flow regulating check valve
CN102207215A (en) * 2010-12-23 2011-10-05 厦门松霖科技有限公司 Water-saving non-return valve
CN202360819U (en) * 2011-12-16 2012-08-01 杭州春江阀门有限公司 Low-resistance check valve
CN203098963U (en) * 2013-01-31 2013-07-31 马友朝 One-way valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106620961A (en) * 2015-10-30 2017-05-10 无锡沃骐医疗科技有限公司 Syringe
CN105587949A (en) * 2016-03-21 2016-05-18 温州天悦流体设备科技有限公司 Non-return valve capable of preventing leakage
CN116007522A (en) * 2023-01-10 2023-04-25 安徽省亳州煤业有限公司 Mine channel deformation monitoring equipment and monitoring method
CN116007522B (en) * 2023-01-10 2023-09-26 安徽省亳州煤业有限公司 Mine channel deformation monitoring equipment and monitoring method

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SE01 Entry into force of request for substantive examination
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Effective date of registration: 20180529

Address after: 350101 the factory floor of Tong Kou Village (Fuzhou Tong Tai Electronics Co., Ltd.), Jingxi Town, Minhou, Fuzhou, Fujian.

Patentee after: Minhou Fuyi plastic products Co., Ltd.

Address before: 343404 No. 64, Da Jia house group, Ma Jia Cun, Yongxin, Jiangxi.

Patentee before: Ma Youchao

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

Granted publication date: 20150401

Termination date: 20210131