CN103216631A - Valve - Google Patents
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- Publication number
- CN103216631A CN103216631A CN2013101123254A CN201310112325A CN103216631A CN 103216631 A CN103216631 A CN 103216631A CN 2013101123254 A CN2013101123254 A CN 2013101123254A CN 201310112325 A CN201310112325 A CN 201310112325A CN 103216631 A CN103216631 A CN 103216631A
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- China
- Prior art keywords
- valve
- dovetail groove
- flap
- valve body
- valve seat
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Abstract
The invention provides a valve, which comprises a valve body, a valve cover, a valve seat and a valve clack, wherein the valve cover is arranged above the valve body; the valve seat is arranged in the valve body; and the valve clack is matched with the valve seat; a flow inlet and a flow outlet are respectively formed in two ends of the valve body; a dovetail slot is formed in the plane of the valve clack; sealing material is injected in the dovetail slot; and the valve seat and the contact part of the dovetail slot in the valve clack jointly form a sealing surface. According to the valve provided by the invention, as the dovetail slot is formed in the valve clack of a stop valve and a check valve, and as polytetrafluoroethylene is injected in the dovetail slot, the sealing function can be reached; and the sealing surface is small in distortion, the structure is simple; and even if the sealing material polytetrafluoroethylene drops, the valve clack is still in contact with the bottom of the dovetail slot so as to block medium to pass through.
Description
Technical field
The present invention relates to a kind of valve, relate in particular to the seal arrangement of a kind of stop valve and safety check.
Background technique
In order to cut off the fluid in the pipeline effectively, on pipeline, all can be provided with valve, be generally stop valve or safety check.Stop valve is applicable to the occasions such as cut-out, adjusting and throttling of convection cell, is widely used in domestic and international supply and drain water system.Stop valve generally comprises valve body, valve gap, valve rod, handwheel and flap, its valve rod one end links to each other with handwheel, flap in the other end passes valve gap and is arranged on valve body links to each other, be provided with the connecting port that matches with flap in its valve body, be respectively equipped with the inflow port of connecting port perforation therewith and go out head piece in two ends of valve body, have the valve gap connection mouth that is connected with valve gap in the valve body upper end.
Safety check also is one-way valve, and it can stop the upstream medium to flow backwards extensive use in pipe-line system.Existing universal Swing check valve, be provided with discoid flap in valve seat, the rotating shaft that this flap can be provided with in valve seat rotates, when flowing medium in the pipeline flows backwards, flap is under the effect of refluence medium, and the sealing surface of its sealing surface and valve seat closely cooperates.
Existing stop valve and safety check soft seal open-shut device are to be fixed on the flap of stop valve and safety check with the mode that is threaded.Because the soft sealing material teflon has the cold flow effect easily to cause seal leakage, and easily leak behind method that is threaded such as the thread looseness, open-shut device drops the back just can't throttle down, moreover because the conference of exerting oneself when closing makes the teflon distortion seriously, influences working life.
Therefore, be necessary further improvement is done in the soft seal of stop valve and safety check.
Summary of the invention
The object of the present invention is to provide a kind of good sealing effect, the stop valve simple in structure and the seal arrangement of safety check.
For reaching aforementioned purpose, valve of the present invention, it comprises that valve body, valve body are provided with valve gap, the flap that in valve body, is provided with valve seat and matches with described valve seat, described two ends of valve body is respectively equipped with inflow port and goes out head piece, it is characterized in that: offer dovetail groove on the plane of described flap, annotate in the described dovetail groove and be pressed with sealing material, the contact segment of the dovetail groove on described valve seat and the described flap forms sealing surface jointly.
According to one embodiment of present invention, the minimum width of described dovetail groove is greater than the width of sealing surface.
According to one embodiment of present invention, the interior sealing material of annotating pressure of described dovetail groove is a teflon.
Beneficial effect of the present invention: the present invention offers dovetail groove on the flap of stop valve, safety check, and in dovetail groove, annotate and press teflon, thereby reach seal action, and the sealing surface distortion is little, simple in structure, even the sealing material teflon comes off, flap and dovetail groove bottom connection touch still can be blocked medium and pass through.
Description of drawings
Fig. 1 (a) is the structural representation of stop valve of the present invention;
Fig. 1 (b) is the enlarged diagram of A among the figure (a);
Fig. 2 (a) is the structural representation of safety check of the present invention.
Fig. 2 (b) is the enlarged diagram of B among the figure (a);
Embodiment
Below in conjunction with accompanying drawing further detailed description is done in invention.
See also Fig. 1 (a) and (b), it is respectively A portion enlarged diagram among the structural representation of stop valve of the present invention and Fig. 1 (a).As shown in Figure 1, it comprises valve body 101, is arranged on valve gap 102, valve rod 109 and handwheel 108 that links to each other with the valve rod two ends and flap 105 on the valve body 101, the flap 105 that is provided with valve seat 103, valve seat opening 104 and matches with described valve seat 103, valve seat opening 104 in valve body 101, the two ends of described valve body 101 have the inflow port 106 that is connected with described valve seat opening 104 respectively and go out head piece 107.Wherein, offer dovetail groove 110 on the plane of flap 105, annotate in the described dovetail groove 110 and be pressed with sealing material, the contact segment of the dovetail groove 110 on described valve seat 103 and the described flap 105 forms sealing surface 111 jointly, and the minimum width of dovetail groove 110 is greater than the width of sealing surface 111.
Please continue to consult Fig. 1 (a) and (b), when need flowing medium by the time, rotation hand wheel 108, flap 105 ascending motions, the sealing surface 111 of flap 105 and valve seat 103 separates, flowing medium flows into out head piece 107 by inflow port 106 by valve seat opening 104; And then opposite spin handwheel 108, flap 105 moves downward by valve rod 109, contact with valve seat 103, the sealing material teflon that this moment, dovetail groove 110 interior notes were pressed and the contact segment of valve seat 103 form sealing surface 111 jointly, and the flowing mediums in the valve body 101 are played buffer action.
See also Fig. 2 (a) and (b), it is respectively B portion enlarged diagram among the structural representation of stop valve of the present invention and Fig. 2 (a).As Fig. 2 (a) with (b), it comprises valve body 201, be arranged on the valve gap 202 of valve body 201 tops, the flap 204 that in valve body 201, is provided with valve seat 203 and matches with described valve seat 203, flap 204 is provided with the connecting rod 205 that is connected with rotating shaft, the two ends of described valve body 201 are respectively equipped with inflow port 206 and go out head piece 207, offer dovetail groove 208 on the plane of wherein said flap 204, annotate in the described dovetail groove 208 and be pressed with sealing material, the contact segment of the dovetail groove 208 on described valve seat 203 and the described flap 204 forms sealing surface 209 jointly, and the minimum width of dovetail groove 208 is greater than the width of sealing surface 209.
Please continue to consult shown in Figure 2.During work, flowing medium enters valve body by inflow port 206, because the effect of the power of flowing medium makes flap 204 rotate by the rotating shaft of connecting rod 205, thereby makes flowing medium flow through; When end-of-job, to its closed position motion, this moment, valve seat 203 contacted with the sealing material of notes pressure in the dovetail groove 208 flap 204, played seal action under the promotion of refluence medium.
Among this embodiment, annotating the sealing material of pressing in the dovetail groove 110 is teflon.
The present invention offers dovetail groove on the flap of stop valve, safety check, and in dovetail groove, annotate and press teflon, thereby reach seal action, and the sealing surface distortion is little, simple in structure, even the sealing material teflon comes off, flap and dovetail groove bottom connection touch still can be blocked medium and pass through.
Above-mentioned explanation has fully disclosed the specific embodiment of the present invention.It is pointed out that and be familiar with the scope that any change that the person skilled in art does the specific embodiment of the present invention does not all break away from claims of the present invention.Correspondingly, the scope of claim of the present invention also is not limited only to previous embodiment.
Claims (3)
1. valve, it comprises valve body, is provided with valve gap above valve body, the flap that in valve body, is provided with valve seat and matches with described valve seat, described two ends of valve body is respectively equipped with inflow port and goes out head piece, it is characterized in that: offer dovetail groove on the plane of described flap, annotate in the described dovetail groove and be pressed with sealing material, the contact segment of the dovetail groove on described valve seat and the described flap forms sealing surface jointly.
2. valve according to claim 1 is characterized in that: the minimum width of described dovetail groove is greater than the width of sealing surface.
3. valve according to claim 1 is characterized in that: annotating the sealing material of pressing in the described dovetail groove is teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101123254A CN103216631A (en) | 2013-04-01 | 2013-04-01 | Valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101123254A CN103216631A (en) | 2013-04-01 | 2013-04-01 | Valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103216631A true CN103216631A (en) | 2013-07-24 |
Family
ID=48814681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101123254A Pending CN103216631A (en) | 2013-04-01 | 2013-04-01 | Valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103216631A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612895A (en) * | 2018-07-16 | 2018-10-02 | 浙江贝尔控制阀门有限公司 | Dovetail groove type soft seal cut-out type regulating valve |
| CN110886858A (en) * | 2018-09-11 | 2020-03-17 | 株式会社日气 | Regulator |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2041615U (en) * | 1988-09-21 | 1989-07-26 | 严家顺 | No-leakaging mortar concrete centrifugal product steel model groove |
| EP0399625B1 (en) * | 1986-05-16 | 1993-12-08 | Nupro Company | Valve |
| CN2166284Y (en) * | 1993-06-25 | 1994-05-25 | 唐国富 | Self-tightening seal for valve |
| GB2343498A (en) * | 1998-11-03 | 2000-05-10 | Seetru Ltd | Safety valve with shape-recoverable sealing element |
| CN2733118Y (en) * | 2004-07-09 | 2005-10-12 | 许渊 | Cutoff valve with high sealing performance |
| CN201059368Y (en) * | 2007-07-12 | 2008-05-14 | 上海欧特莱阀门机械有限公司 | Dual-channel sealing eccentric hemisphere valve |
| CN201103698Y (en) * | 2007-09-17 | 2008-08-20 | 江西船用阀门厂 | Balancing type break valve |
| CN201103694Y (en) * | 2007-08-24 | 2008-08-20 | 淄博泰丰阀门制造有限公司 | Special valve for bellows dangerous medium |
| CN201588933U (en) * | 2009-12-10 | 2010-09-22 | 南京钢铁股份有限公司 | Flexible sealing device of valve |
| CN203223574U (en) * | 2013-04-01 | 2013-10-02 | 无锡富盛阀业有限公司 | Valve |
-
2013
- 2013-04-01 CN CN2013101123254A patent/CN103216631A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0399625B1 (en) * | 1986-05-16 | 1993-12-08 | Nupro Company | Valve |
| CN2041615U (en) * | 1988-09-21 | 1989-07-26 | 严家顺 | No-leakaging mortar concrete centrifugal product steel model groove |
| CN2166284Y (en) * | 1993-06-25 | 1994-05-25 | 唐国富 | Self-tightening seal for valve |
| GB2343498A (en) * | 1998-11-03 | 2000-05-10 | Seetru Ltd | Safety valve with shape-recoverable sealing element |
| CN2733118Y (en) * | 2004-07-09 | 2005-10-12 | 许渊 | Cutoff valve with high sealing performance |
| CN201059368Y (en) * | 2007-07-12 | 2008-05-14 | 上海欧特莱阀门机械有限公司 | Dual-channel sealing eccentric hemisphere valve |
| CN201103694Y (en) * | 2007-08-24 | 2008-08-20 | 淄博泰丰阀门制造有限公司 | Special valve for bellows dangerous medium |
| CN201103698Y (en) * | 2007-09-17 | 2008-08-20 | 江西船用阀门厂 | Balancing type break valve |
| CN201588933U (en) * | 2009-12-10 | 2010-09-22 | 南京钢铁股份有限公司 | Flexible sealing device of valve |
| CN203223574U (en) * | 2013-04-01 | 2013-10-02 | 无锡富盛阀业有限公司 | Valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612895A (en) * | 2018-07-16 | 2018-10-02 | 浙江贝尔控制阀门有限公司 | Dovetail groove type soft seal cut-out type regulating valve |
| CN110886858A (en) * | 2018-09-11 | 2020-03-17 | 株式会社日气 | Regulator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130724 |