CN203098963U - One-way valve - Google Patents
One-way valve Download PDFInfo
- Publication number
- CN203098963U CN203098963U CN 201320055953 CN201320055953U CN203098963U CN 203098963 U CN203098963 U CN 203098963U CN 201320055953 CN201320055953 CN 201320055953 CN 201320055953 U CN201320055953 U CN 201320055953U CN 203098963 U CN203098963 U CN 203098963U
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- CN
- China
- Prior art keywords
- valve
- guide portion
- way valve
- conical
- valve body
- 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
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Abstract
The utility model discloses a one-way valve which comprises a valve body and a valve core, wherein a main through hole is formed in the middle of the valve body, a limiting device is fixedly arranged on the inner wall of the main through hole, the lower end surface of the limiting device is a cone-shaped surface, a detent part is fixedly arranged at the upper end of the valve body, the valve core comprises an upper guiding part, a cone-shaped part, a middle guiding part, an annular groove, a protruding part and a lower guiding part, the upper guiding part, the cone-shaped part, the middle guiding part, the annular groove, the protruding part and the lower guiding part are fixedly connected in sequence, an elastic sealing device is arranged on the annular groove, the valve core is sleeved in the main through hole in a sliding mode, and the elastic sealing device does not go beyond the lower cone-shaped surface of the limiting device. The one-way valve has the advantages of being high in stability, high in sensitivity, not prone to abrasion, good in sealing performance, and long in service life.
Description
Technical field
The utility model relates to valve field, particularly one-way valve.
Background technique
One-way valve claims safety check or check valve again, is used to prevent the reverse flow of fluid in pressure system or hydraulic system.As the liquid current control of high-pressure system the time, because liquid stream has the characteristics of pressure height (usually at 25MPa600MPa), frequency fast (reaching usually more than 120 times/minute), frequent opening and closing action between spool and the valve body, the as easy as rolling off a log inaccurate or Line of contact of contraposition that causes between valve body and the spool weares and teares, and makes the sealing instability between the runner aperture of spool and valve body; Show that by experiment the one-way valve of ordinary construction is a spheric structure as spool, only have an appointment 50,000 times following working life at the high pressure of 200MPa, and taper valve core is good slightly, is about 7.5 ten thousand times, all have short deficiency in working life.And in case spool or its working stability of valve body wearing and tearing considerable influence are difficult to maintenance again or change the component that damage, the one-way valve that can only more renew causes user cost high.
So be necessary that a kind of one-way valve of model utility solves this defective.
The model utility content
The utility model proposes one-way valve, solved one-way valve poor stability in the prior art, sensitivity is low, and is easy to wear, and sealing is poor, the defective that working life is short.
The technical solution of the utility model is achieved in that
One-way valve comprises:
Valve body is provided with main through hole in the middle of the described valve body, is set with limit stoper on the described main through-hole wall, and described limit stoper lower end surface is a conical surface, and described valve body upper end is set with screens portion;
Spool, comprise the last guide portion, tapered portion, middle guide portion, circular groove, convex shoulder and the following 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 cooperates with described screens portion, 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 the described bottom, described supporting portion overcoat has elastic component, described guide portion down is nested with in the described elastic element the other end, when described spool moved up and down, described guide portion lower end surface did not down exceed the upper-end surface of described supporting portion.
Further, described elastic sealing device is an O-ring seals.
Further, the described guide portion upper end of going up is conical, and described conical summit is circular, and correspondence is provided with conical bore on the described bottom under the described guide portion down.
Further, described guide portion lower end down is conical.
Further, described elastic element is the turriform spring.
The beneficial effects of the utility model are: form by valve body, spool and valve pipe, and simple in structure, assembling is simple and cost is low; The setting of last guide portion, middle guide portion, following guide portion and supporting portion makes spool remain high concentricity in the course of the work, high sensitivity, and do not produce skew, prevent the friction between valve body and the spool, guarantee one-way valve proper functioning and sealing, improve the life-span of one-way valve; The setting of supporting portion also avoids down guide portion and elastic element to produce interference in the course of the work, improves the stability of one-way valve.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the explosive view of the utility model one-way valve;
Fig. 2 is the worm's eye view of valve pipe among Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
With reference to Fig. 1-2, one-way valve comprises: valve body 1, and described valve body 1 is provided with main through hole 13, is set with 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 set with screens portion 11; Spool 2, comprise the last guide portion 21, tapered portion 22, middle guide portion 23, circular groove 24, convex shoulder 26 and the following 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 cooperates with described screens portion 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 the described bottom 43, described supporting portion 42 overcoats have elastic component 3, described guide portion 27 down is nested with in described elastic element 3 the other ends, when described spool 2 moved up and down, described guide portion 27 lower end surfaces did not down exceed the upper-end surface of described supporting portion 42.
Described spool 2 moves up and down during the utility model work, described upward guide portion 21 and described middle guide portion 23 are along described limit stoper 12 center line movements, described guide portion 27 down is along described supporting portion 42 center line movements, the described spool that makes does not produce big skew in two ends about in the of 2, the concentricity height, reduced when described valve body 1 is offset with described spool 2 producing friction, avoided sensitivity, therefore increased stability, sensitivity and the life-span of one-way valve because of the frictional influence one-way valve; Described elastic element 3 mainly plays the effect that described spool 2 is resetted; The 42 pairs of described spools 2 in described supporting portion play 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 the 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 the impact of fluid to described spool 2, and connect described guide portion 21 and the described middle guide portion 23 gone up, play over effect, even under the situation that produces skew, described tapered portion 22 is slided along described limit stoper 12 lower end conical surfaces and described limit stoper 12 inwalls when resetting, can make the very fast concentricity that restPoses of described spool 2, and reduce friction.
Being provided with of circular groove 24 described in the utility model mainly to 25 location of described elastic sealing device and fixation; Being provided with of described screens portion 11 and described draw-in groove 41 mainly is 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 an O-ring seals.The O-ring seals low price, good seal performance, the user can select other elastic sealing device as required for use, as long as reach good airproof performance.
Further, described guide portion 21 upper ends of going up are conical, and described conical summit is circular.Conical design can reduce the impact of fluid to spool, increases the stability of one-way valve.
Further, described guide portion 27 lower ends down are conical, and correspondence is provided with conical bore (not shown) on the described bottom 43 under the described guide portion 27 down.Location assembling when the setting conical and conical bore of described guide portion 27 lower ends down 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 described down big design of guide portion.
The utility model is made up of valve body, spool and valve pipe, and is simple in structure, assembling is simple and cost is low; The setting of last guide portion, middle guide portion, following guide portion and supporting portion makes spool remain high concentricity in the course of the work, high sensitivity, and do not produce skew, prevent the friction between valve body and the spool, guarantee one-way valve proper functioning and sealing, improve the life-span of one-way valve; The setting of supporting portion also avoids down guide portion and elastic element to produce interference in the course of the work, improves the stability of one-way valve.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. one-way valve is characterized in that, comprising:
Valve body is provided with main through hole in the middle of the described valve body, is set with limit stoper on the described main through-hole wall, and described limit stoper lower end surface is a conical surface, and described valve body upper end is set with screens portion;
Spool, comprise the last guide portion, tapered portion, middle guide portion, circular groove, convex shoulder and the following 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 cooperates with described screens portion, 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 the described bottom, described supporting portion overcoat has elastic component, described guide portion down is nested with in the described elastic element the other end, when described spool moved up and down, described guide portion lower end surface did not down 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 an O-ring seals.
3. one-way valve as claimed in claim 1 is characterized in that, the described guide portion upper end of going up is conical, and described conical summit is circular.
4. one-way valve as claimed in claim 1 is characterized in that, described guide portion lower end down is conical, and correspondence is provided with conical bore on the described bottom under the described guide portion down.
5. one-way valve as claimed in claim 1 is characterized in that, described elastic element is the turriform spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055953 CN203098963U (en) | 2013-01-31 | 2013-01-31 | One-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055953 CN203098963U (en) | 2013-01-31 | 2013-01-31 | One-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098963U true CN203098963U (en) | 2013-07-31 |
Family
ID=48850368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320055953 Expired - Fee Related CN203098963U (en) | 2013-01-31 | 2013-01-31 | One-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098963U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090062A (en) * | 2013-01-31 | 2013-05-08 | 马友朝 | One-way valve |
| CN108138977A (en) * | 2015-10-12 | 2018-06-08 | 伯克哈特压缩机股份公司 | Poppet |
| US10859078B2 (en) | 2015-10-12 | 2020-12-08 | Burckhardt Compression Ag | Poppet valve |
-
2013
- 2013-01-31 CN CN 201320055953 patent/CN203098963U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090062A (en) * | 2013-01-31 | 2013-05-08 | 马友朝 | One-way valve |
| CN103090062B (en) * | 2013-01-31 | 2015-04-01 | 马友朝 | One-way valve |
| CN108138977A (en) * | 2015-10-12 | 2018-06-08 | 伯克哈特压缩机股份公司 | Poppet |
| CN108138977B (en) * | 2015-10-12 | 2020-02-11 | 伯克哈特压缩机股份公司 | Poppet valve |
| US10859078B2 (en) | 2015-10-12 | 2020-12-08 | Burckhardt Compression Ag | Poppet valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20140131 |