CN101555951A - Valve core of overall molded rubber-coated plug valve - Google Patents
Valve core of overall molded rubber-coated plug valve Download PDFInfo
- Publication number
- CN101555951A CN101555951A CNA2009100274439A CN200910027443A CN101555951A CN 101555951 A CN101555951 A CN 101555951A CN A2009100274439 A CNA2009100274439 A CN A2009100274439A CN 200910027443 A CN200910027443 A CN 200910027443A CN 101555951 A CN101555951 A CN 101555951A
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- valve
- valve core
- rubber
- coated
- core
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Abstract
The invention relates to a valve core of an overall molded rubber-coated plug valve, in particular to a moving part for controlling the opening and the closing of the plug valve or regulating the flow rate, thereby ensuring the valve to have the function of opening and closing or regulating reliably. The valve core belongs to the technical field of mechanical structures. The valve core comprises the valve core, a metal core is arranged on the valve core, and the valve core is characterized in that rubber is overally coated on the metal core. The valve core has simple, compact and reasonable structure, does not need to use pasting glue and has no pollution risk; the rubber is overally coated, thereby effectively avoiding the phenomena of edge warp and sloughing at splices; furthermore, the dimension precision can be controlled by a mold and process parameters, and the overally coated valve core does not need grinding, thereby having low cost and good quality and prolonging the service life.
Description
Technical field
The present invention relates to a kind of valve core of overall molded rubber-coated plug valve, specifically be used for the movement parts that the control cock valve opened and closed or regulated flow, guarantee that valve has the function that opens and closes or regulate reliably.Belong to the mechanical structure technical field.
Background technique
At present, exporting the valve that developed country is used for tap water and water treatment pipeline, adopt eccentric rubber seal stopcock mostly, valve body sealing surface is formed by the nickel alloy built-up welding, and spool (stopper) then is rubber-coated forming on metal core.In the rubber-coated technology of existing spool, all adopt corresponding glue that some rubber plate splicings are sticked on the metal core, make its size conforms regulation requirement by grinding then.In use, because the rubbing action between the opening-closing process sealing pair, the rubber on the spool is easy to the alice that pitches in splicing place, makes the valve seal disabler.Simultaneously, the glue requirement of pasting usefulness is very high, often can only use the external original product of specifying brand, otherwise be difficult to reach the corresponding environmental protection standard of developed country.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, thereby provide a kind of its not only need not use stickup glue, more can not cause the alice phenomenon in the using process, steady quality, and the valve core of overall molded rubber-coated plug valve that can increase the service life.
According to technological scheme provided by the invention, valve core of overall molded rubber-coated plug valve comprises metal core and rubber, and feature is: integral coating rubber on the described metal core.Described rubber is embossed on the metal core by hot-die.
Compared with the prior art the present invention has the following advantages:
The present invention is simple, compact and reasonable for structure; It need not use stickup glue, does not have pollution risk; Rubber is integral coating, can effectively avoid the alice obscission of splicing place; And dimensional accuracy can be controlled by mould and process parameter, and the spool of integral coating does not need grinding, and cost is low, and quality is good, and can increase the service life.
Description of drawings
Fig. 1 is structural principle user mode figure of the present invention.
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
As shown in Figure 1: comprise valve body 1 (valve body sealing surface 1-1), spool 2 (integral coating rubber 2-1, metal core 2-2), medium inlet passage 3 and media outlet passage 4.Described spool 2 is made up of the rubber 2-1 that metal core 2-2 and metal core 2-2 go up integral coating.
Position shown in Figure 1 is to be in closed condition, and import 3 and outlet 4 passages are cut off.When spool 2 when the direction of arrow is rotated, rubber 2-1 on the spool breaks away from valve body sealing surface 1-1 gradually, import 3 and outlet 4 are connected, medium flows into outlet 4 from import 3, the spool angle of swing can be regulated in 0～90 °, thereby the adjusting rate-of flow, when spool rotates to 90 °, rate-of flow maximum (full open position).When the diagram closed condition, rate-of flow is zero (not allowing to leak), and it mainly is that the sealing pair that leans on rubber 2-1 and valve body sealing surface 1-1 to form guarantees.In prior art,,, sealing pair produces leakage thereby being lost efficacy because the effect of sealing pair frictional force in opening-closing process is easy to make rubber the alice obscission to occur in splicing place.Rubber 2-1 among the present invention is embossed on the metal core 2-2 by hot-die, owing to be global formation, so the generation of alice obscission can not arranged, does not make its more compliance with environmental protection requirements because not using stickup glue simultaneously in opening-closing process.
Facts have proved that the present invention not only outward appearance is bright and clean, steady quality is reliable, and the life-span is extremely long, is subjected to client's consistent favorable comment.
Claims (2)
1, a kind of valve core of overall molded rubber-coated plug valve, spool (2) comprise metal core (2-2) and rubber (2-1), it is characterized in that: described metal core (2-2) is gone up integral coating rubber (2-1).
2, valve core of overall molded rubber-coated plug valve according to claim 1 is characterized in that described rubber (2-1) is embossed on the metal core (2-2) by hot-die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100274439A CN101555951A (en) | 2009-05-06 | 2009-05-06 | Valve core of overall molded rubber-coated plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100274439A CN101555951A (en) | 2009-05-06 | 2009-05-06 | Valve core of overall molded rubber-coated plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101555951A true CN101555951A (en) | 2009-10-14 |
Family
ID=41174179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100274439A Pending CN101555951A (en) | 2009-05-06 | 2009-05-06 | Valve core of overall molded rubber-coated plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101555951A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116378A (en) * | 2011-03-29 | 2011-07-06 | 无锡杰尔压缩机有限公司 | Low-resistance energy-saving plug valve for water treatment |
| CN102777626A (en) * | 2012-08-16 | 2012-11-14 | 无锡杰尔压缩机有限公司 | Valve element structure of plug valve |
| CN102808963A (en) * | 2012-08-16 | 2012-12-05 | 无锡杰尔压缩机有限公司 | Mold pressed semi-covered rubber plug valve element |
-
2009
- 2009-05-06 CN CNA2009100274439A patent/CN101555951A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116378A (en) * | 2011-03-29 | 2011-07-06 | 无锡杰尔压缩机有限公司 | Low-resistance energy-saving plug valve for water treatment |
| CN102777626A (en) * | 2012-08-16 | 2012-11-14 | 无锡杰尔压缩机有限公司 | Valve element structure of plug valve |
| CN102808963A (en) * | 2012-08-16 | 2012-12-05 | 无锡杰尔压缩机有限公司 | Mold pressed semi-covered rubber plug valve element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091014 |