CN103148282B - Non-rising stem gate valve switch indicator - Google Patents
Non-rising stem gate valve switch indicator Download PDFInfo
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- CN103148282B CN103148282B CN201310098723.5A CN201310098723A CN103148282B CN 103148282 B CN103148282 B CN 103148282B CN 201310098723 A CN201310098723 A CN 201310098723A CN 103148282 B CN103148282 B CN 103148282B
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- hollow base
- valve switch
- internal gear
- turning wheel
- switch indicator
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- Indication Of The Valve Opening Or Closing Status (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention provides a non-rising stem gate valve switch indicator, which comprises a hollow base, an inner gear, a planet gear, a fixing pin, a poking wheel and a cover plate, wherein the inner gear is rotatablely is arranged in the hollow base, the planet gear is fixedly arranged on the hollow base through the fixing pin and can rotate in the self axial direction, the inner gear is engaged with the planet gear, the poking wheel is rotatablely arranged in the hollow base, the poking wheel is engaged with the planet gear, the cover plate covers the hollow base, and the upper end surface of the cover plate, corresponding to the inner gear, is provided with an observation window. Compared with the prior art, the non-rising stem gate valve switch indicator has the advantages that the structure is simple, the use is stable, the manufacture cost is lower, and the mounting, the dismounting and the maintenance are more convenient.
Description
Technical field
The present invention relates to a kind of parts of valve, especially relate to a kind of hidden rod sluice valve switch indicator.
Background technique
The Stem Mut of inside screw non-rising stem type gate valve is located on flashboard, and hand wheel rotating band ovable valve stem rotates, and is elevated flashboard, thus opens and closes valve.Because the lift-bolt of inside screw non-rising stem type gate valve is in gate valve cavity, so the on off state of valve directly cannot be observed outside cavity.When operating, usually by calculating the rotation number of turns of handwheel, judge the opening state of valve.When the aperture value of ram seal is K, when valve rod pitch is P, the number of total coils of valve opening is N=K/P circle, and normally the number of turns is 10 ~ 26 circles.In practical operation, usually because people is misoperation, cause valve opening deficiency or do not close completely, have impact on normal use.Therefore, need on inside screw non-rising stem type gate valve, arrange the indicator that accurately can show valve switch state.
Chinese patent CN10344186B discloses a kind of hidden rod sluice valve switch indicator, it comprises outside and has the step-like hollow chassis of level Four, graduated ring, driving pin, eccentric driver plate, cycloid wheel and pinwheel, drive eccentric driver plate to rotate by hand wheel rotating, eccentric driver plate band plane gear is round cycloid crop rotation revolution and rotation.Driving pin rotates with pinwheel, and the rotation of pinwheel is passed to graduated ring, obtains the groove on dial and handwheel rotating in same direction, thus display valve switch state.Although a kind of hidden rod sluice valve switch indicator can show the on off state of inside screw non-rising stem type gate valve disclosed in this patent, the drive mechanism of multi-stage stairs shape that its adopts is too complicated, and easily damage, fabricating cost is higher, and handling and maintenance all very inconvenient.
Summary of the invention
In order to overcome the defect of prior art, the object of this invention is to provide a kind of structure simple, use more reliable, fabricating cost is lower, load and unload and keep in repair convenient hidden rod sluice valve switch indicator.
In order to achieve the above object, the invention provides a kind of hidden rod sluice valve switch indicator, it is characterized in that: it comprises hollow base, internal gear, planetary pinion, fixing pin, turning wheel and cover plate, wherein said internal gear is located in described hollow base rotationally, described planetary pinion to be fixed on described hollow base by described fixing pin and can along self axial rotation, described internal gear engages with described planetary pinion, described turning wheel is located in described hollow base rotationally, described turning wheel engages with described planetary pinion, described cover plate covers on described hollow base, on described cover plate, the upper-end surface of corresponding described internal gear is provided with viewing window.
Preferably, described viewing window is provided with graduation line.
Preferably, be also provided with spring and steel ball in described planetary pinion, described steel ball is pushed against on described hollow base under the pressure effect of spring.Adopt such structure, make planetary pinion work more stable, avoid planetary pinion to produce rotation easily when the cingulum not being subject to turning wheel moves.
Preferably, the axle center of the axle center of described internal gear, described planetary axle center and described turning wheel is located along the same line.More preferably, described internal gear and described turning wheel are arranged with one heart.
Preferably, the described planetary number of teeth is 7 teeth, and the number of teeth of described turning wheel is 1 ~ 3 tooth.
Working principle of the present invention is: drive described turning wheel to rotate when hand wheel rotating, turning wheel drives described planetary pinion to rotate, planetary pinion drives again internal gear to rotate, achieve larger velocity ratio, the stroke that internal gear rotates can show the on off state of inside screw non-rising stem type gate valve, and operator just can check on off state easily from the viewing window of cover plate.
Compared to prior art, hidden rod sluice valve switch indicator provided by the invention, structure is more simple, and reliability is higher, and fabricating cost is lower, loads and unloads and keeps in repair all convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of hidden rod sluice valve switch indicator of the present invention.
Fig. 2 is the structural representation of the inside screw non-rising stem type gate valve being provided with hidden rod sluice valve switch indicator of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is described in detail.
Refer to Fig. 1 and Fig. 2, the invention provides a kind of hidden rod sluice valve switch indicator, it is characterized in that: it comprises hollow base 1, internal gear 2, planetary pinion 3, fixing pin 4, turning wheel 7 and cover plate 8, wherein said internal gear 2 is located in described hollow base 1 rotationally, described planetary pinion 3 to be fixed on described hollow base 1 by described fixing pin 4 and can along self axial rotation, described internal gear 2 engages with described planetary pinion 3, described turning wheel 7 is located in described hollow base 1 rotationally, described turning wheel 7 engages with described planetary pinion 3, described cover plate 8 covers on described hollow base 1, on described cover plate 8, the upper-end surface of corresponding described internal gear 2 is provided with viewing window 81, described viewing window 81 is provided with graduation line.
In the present embodiment, be also provided with spring 5 and steel ball 6 in described planetary pinion 3, described steel ball 6 is pushed against on described hollow base 1 under the pressure effect of spring 5.
The axle center of the axle center of described internal gear 2, the axle center of described planetary pinion 3 and described turning wheel 7 is located along the same line, and described internal gear 2 and described turning wheel 7 are arrange with one heart.
In the present embodiment, the number of teeth of described planetary pinion 3 is 7 teeth, and the number of teeth of described turning wheel 7 is 1 tooth.
In another embodiment, the number of teeth of described turning wheel is 2 teeth.
In another embodiment, the number of teeth of described turning wheel is 3 teeth.
In fig. 2, inside screw non-rising stem type gate valve comprises valve body 11, valve rod 12, valve plate 13, valve seat 14, valve gap 15, bonnet 16, handwheel 17.Hidden rod sluice valve switch indicator of the present invention is sheathed on the bonnet 16 of inside screw non-rising stem type gate valve, the wheel bar of handwheel 17 is arranged on the turning wheel 7 of hidden rod sluice valve switch indicator of the present invention, turning wheel 7 is fixedly connected with the wheel bar of handwheel 17 by pin, when handwheel 17 rotates, drive turning wheel 7 synchronous axial system, cingulum on turning wheel 7 moves planetary pinion 3 and rotates, and planetary pinion 3 drives again internal gear 2 to rotate.Through the viewing window 81 of cover plate 8, the rotation checking on internal gear 2 is marked at the reading on graduation line, can learn the on off state of inside screw non-rising stem type gate valve.After cover plate 8 is opened, just can regulate internal gear 2, planetary pinion 3 and turning wheel 7 easily, keep in repair, the operation such as replacing, very convenient.
Hidden rod sluice valve switch indicator part of the present invention is less, and structure is simple, and use more stable, reliable, fabricating cost is lower, loads and unloads and keep in repair very convenient.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (5)
1. a hidden rod sluice valve switch indicator, it is characterized in that: it comprises hollow base, internal gear, planetary pinion, fixing pin, turning wheel and cover plate, wherein said internal gear is located in described hollow base rotationally, described planetary pinion to be fixed on described hollow base by described fixing pin and can along self axial rotation, described internal gear engages with described planetary pinion, described turning wheel is located in described hollow base rotationally, described turning wheel engages with described planetary pinion, described cover plate covers on described hollow base, on described cover plate, the upper-end surface of corresponding described internal gear is provided with viewing window,
Also be provided with spring and steel ball in described planetary pinion, described steel ball is pushed against on described hollow base under the pressure effect of spring.
2. a kind of hidden rod sluice valve switch indicator according to claim 1, is characterized in that: described viewing window is provided with graduation line.
3. a kind of hidden rod sluice valve switch indicator according to claim 1, is characterized in that: the axle center of the axle center of described internal gear, described planetary axle center and described turning wheel is located along the same line.
4. a kind of hidden rod sluice valve switch indicator according to claim 3, is characterized in that: described internal gear and described turning wheel are arranged with one heart.
5. a kind of hidden rod sluice valve switch indicator according to claim 1, is characterized in that: the described planetary number of teeth is 7 teeth, and the number of teeth of described turning wheel is 1 ~ 3 tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310098723.5A CN103148282B (en) | 2013-03-26 | 2013-03-26 | Non-rising stem gate valve switch indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310098723.5A CN103148282B (en) | 2013-03-26 | 2013-03-26 | Non-rising stem gate valve switch indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103148282A CN103148282A (en) | 2013-06-12 |
| CN103148282B true CN103148282B (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310098723.5A Active CN103148282B (en) | 2013-03-26 | 2013-03-26 | Non-rising stem gate valve switch indicator |
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| Country | Link |
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| CN (1) | CN103148282B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2121594U (en) * | 1992-03-11 | 1992-11-11 | 哈尔滨铁路局工业处哈尔滨氧气厂 | Valve opener by seight |
| CN1225613C (en) * | 2002-09-19 | 2005-11-02 | 永嘉县上一阀门制造有限公司 | Device for indicating angle of opening of concealed stem valve |
| JP2004232671A (en) * | 2003-01-28 | 2004-08-19 | Kurimoto Ltd | Valve opening indicating device |
| JP4652012B2 (en) * | 2004-10-14 | 2011-03-16 | 株式会社キッツ | Electric actuator |
| CN101344186B (en) * | 2008-08-25 | 2010-06-09 | 上海神开石油化工装备股份有限公司 | Hidden rod sluice valve switch indicator device |
| CN102674179B (en) * | 2012-05-21 | 2015-04-15 | 安徽省宿州市龙华机械制造有限公司 | Device of double-speed gear box on endless rope winch for preventing planetary gear rack from axially deviating |
| CN202674504U (en) * | 2012-06-28 | 2013-01-16 | 奉化市远东车辆部件有限公司 | Indicating device for valve opening degree |
| CN203131203U (en) * | 2013-03-26 | 2013-08-14 | 纽威石油设备（苏州）有限公司 | Switch indicator for nonrising-stem gate valve |
-
2013
- 2013-03-26 CN CN201310098723.5A patent/CN103148282B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103148282A (en) | 2013-06-12 |
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