CN105240559A - Fuel gas plug valve provided with cam limiting mechanism - Google Patents
Fuel gas plug valve provided with cam limiting mechanism Download PDFInfo
- Publication number
- CN105240559A CN105240559A CN201510622263.0A CN201510622263A CN105240559A CN 105240559 A CN105240559 A CN 105240559A CN 201510622263 A CN201510622263 A CN 201510622263A CN 105240559 A CN105240559 A CN 105240559A
- Authority
- CN
- China
- Prior art keywords
- valve
- cam
- fuel gas
- gas plug
- spool
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/10—Means for additional adjustment of the rate of flow
- F16K5/103—Means for additional adjustment of the rate of flow specially adapted for gas valves
- F16K5/106—Means for additional adjustment of the rate of flow specially adapted for gas valves with pilot flame
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The invention discloses a fuel gas plug valve provided with a cam limiting mechanism. The fuel gas plug valve comprises a valve body provided with an inner cavity, a valve element arranged in the inner cavity, a valve deck located on the upper portion of the inner cavity and a valve rod which is rotatably installed in the valve deck and used for driving the valve element. A switch valve is arranged inside the valve element. A cam used for limitation in the circumferential direction is movably installed in the valve deck. The inner wall of the cam is provided with a supporting step and a pressing step. A linkage pin which rotates along with the valve rod synchronously is movably installed on the supporting step. The supporting step is provided with an oblique face used for driving the cam to press downwards. A pressing plate which rotates along with the valve rod synchronously to drive the valve element and is axially synchronous with the cam abuts against the pressing step. The pressing plate is provided with a pressing part which acts on the switch valve in the valve element. The fuel gas plug valve is stable in structure, the switch valve on the lower portion of the valve element is opened while the size of a gas inlet channel is adjusted by rotating the valve rod, the pressing stroke of the valve rod is shortened, and the pressure needing to be applied to the valve rod is reduced.
Description
Technical field
The present invention relates to a kind of fuel gas plug valve, particularly relate to a kind of fuel gas plug valve with cam limit mechanism.
Background technique
Fuel gas plug valve in various gas utensil is the manual manipulation valve controlling source of the gas supply.Common fuel gas plug valve generally comprises the valve body offering gas-entered passageway and outlet passageway, the spool in valve body with the large fire hole of band and small fire hole and a rotary knob rod.During use, the outlet passageway end of stopcock valve body is connected with nozzle and uses, user is by being arranged on the knob on operation panel and the rotary knob rod under operation knob, general first pressing knob also rotates counterclockwise, movable valve plug can be with rotate counterclockwise, the large fire hole on spool be connected with the gas-entered passageway in valve body, now, source of the gas can through gas-entered passageway, outlet passageway and from nozzle ejection, for gas utensil.When turning the intensity of a fire down, user continues to rotate counterclockwise knob, and the small fire hole on spool is connected with the gas-entered passageway in valve body, reduces the circulation passage of source of the gas and reaches the object reducing the intensity of a fire.
Such as, existing publication number is that the Chinese patent literature of CN101832411A discloses a kind of fuel gas plug valve, comprise valve body, spool, valve gap, rotary knob rod, with the positioning wheel of rotary knob rod synchronous axial system and fixed aunular sheet; Wherein, spool has center hole, and circumferential surface is provided with large fire hole, small fire hole; Rotary knob rod can relatively the displacement of valve gap upper and lower move and can be with movable valve plug synchronous axial system; The inside top of valve gap has the first block that protrude to central authorities, that can stop the first projection, and, there is in the inner chamber of valve gap the first retaining wall, the second retaining wall.
In above-mentioned fuel gas plug valve, when stopcock returns back to big fire position from little fiery position, spool from small fire hole and the gas-entered passageway communicating state of valve body return back to its large fire hole communicate with the gas-entered passageway of valve body time, also the position of spool can accurately be located, ensure that the large fire hole on spool communicates completely with the gas-entered passageway of valve body, facilitate stopcock to pull back to the large intensity of a fire.
Existing fuel gas plug valve, in opening procedure, usually needs force to be subdued completely by knob, opens the switch valve of body cavity, then rotate counterclockwise to regulate the intensity of a fire, namely needs with larger pressing force pressure switches valve, operation inconvenience.
Summary of the invention
For overcoming prior art Problems existing, the invention provides a kind of fuel gas plug valve with cam limit mechanism, while rotation valve rod regulates channel sized, open the switch valve of spool bottom, shorten the amplitude of depressed stem, and change the existing mode of operation being opened switch valve by pressing valve rod, structural stability.
Concrete technological scheme of the present invention is as follows:
There is a fuel gas plug valve for cam limit mechanism, comprise the valve body with inner chamber, the spool being placed in inner chamber, be positioned at inner chamber top valve gap and be movably arranged on valve gap and for driving the valve rod of spool, in described spool, be provided with switch valve;
Be movably installed with the cam that circumference is spacing in described valve gap, cam inwall is provided with support level and presses down step;
Support level is movably installed with the set bar with valve rod synchronous axial system, described support level has the inclined-plane pressed down for driving cam;
Press down step to compress with valve rod synchronous axial system to be with movable valve plug and with camshaft to synchronous pressing plate, described pressing plate has the pressing down section acting on switch valve in spool.
When valve rod in the present invention rotates, drive set bar along the inclined-plane upward sliding of support level, the cam in valve gap is driven to press down, and drive pressing plate to move downward by pressing down step, press down the switch valve opened in spool, valve rod is while rotation in addition, also by pressing plate band movable valve plug synchronous axial system, opens the gas-entered passageway in valve body.
Switch valve of the present invention opens in valve rod rotation process, instead of opened by pressing valve rod, and only need the valve rod pressing down 1 millimeter to touch sensitive switch igniting, the pressing stroke of reduction valve rod, and reduce the pressing force of fuel gas plug valve unlatching, convenient operation.
Preferably, described valve rod comprise through valve gap bar portion and be positioned at the cylinder section of valve gap, described bar portion is arranged with spacing jump ring, and described spacing jump ring and cylinder section coordinate for valve rod sliding axially on valve gap spacing.
Cylinder section, relative to the expanding layout in bar portion, in bar portion through after valve gap, and bar portion is set in together with spacing jump ring, carries out axial limiting, control the pressing stroke of valve rod to valve rod.
Preferably, described cylinder section is passed by cam inside, the barrel of cylinder section has the interlock groove coordinated with described set bar and pressing plate, and the pressing down section namely in set bar and pressing plate enters in interlock groove, makes set bar and pressing plate and valve rod keep synchronous axial system.
Preferably, there is in described interlock groove the half the circumference of the sleeve where it joins the shoulder of screens set bar, and there is in cylinder section the first stage clip pressing down set bar laminating support level.
The present invention blocks set bar by half the circumference of the sleeve where it joins the shoulder, and produce in interlock groove while preventing set bar from rotating on inclined-plane and move axially, the first stage clip, for pushing up pressure set bar, makes it be located on half the circumference of the sleeve where it joins the shoulder.
Preferably, the outer wall of described cam is provided with for the spacing lug of circumference, and valve gap inwall is provided with the axial groove with they fit.
Lug coordinates with axial groove (being parallel to valve rod axial arranged), for stopping the rotation of cam, when set bar is climbed along inclined-plane, forms axial thrust to cam, and lug vertically groove slides, and namely actuating cam presses down.
Preferably, there is in described inner chamber the second stage clip of the described cam of top pressure.
Second stage clip for balancing the first stage clip, control set bar rotate time screens interlock groove half the circumference of the sleeve where it joins the shoulder (higher than interlock groove bottom) on, and make set bar when static landing to interlock groove bottom; In addition, the second stage clip is also for withstanding pressing plate, and what keep pressing plate to be close to cam presses down on step, makes cam and pressing plate keep synchronous interaction in the axial direction.
Preferably, described pressing plate comprises the ring body being pressed on and pressing down on step, and described pressing down section is be positioned at ring body plate portion diametrically, and described spool top is provided with the described plate portion of storage to drive the restraining groove of spool, namely pressing plate is when pressing down, and under restraining groove, in-migration presses down and opens switch valve.
Preferably, be provided with the supported spring that maintained switch valve is normally closed in described spool, maintained switch valve is in closed state all the time.
Structural stability of the present invention, rotation valve rod opens the switch valve of spool bottom while regulating gas-entered passageway size, shortens depressed stem stroke, reduces applied pressure needed for valve rod.
Accompanying drawing explanation
Fig. 1 is the structural representation of fuel gas plug valve in the present invention;
Fig. 2 is the plan view of fuel gas plug valve in the present invention.
Embodiment
As depicted in figs. 1 and 2, there is a fuel gas plug valve for cam limit mechanism, valve rod 1, E type ring 2, push pedal 3, stage clip 4, thumb wheel 5, spacing jump ring 6, valve gap 7, stage clip 8, spool 9, set bar 10, cam 11, pressing plate 12, stage clip 13, switch valve 14, sensitive switch 15, liner 16, inclined-plane 17, cylinder section 18, pressing down section 19 and valve body 20.
Valve body 20 is provided with inner chamber, and valve gap 7 covers the top of inner chamber, and spool 9, cam 12, pressing plate 12, set bar 10 and switch valve 14 are all positioned at the inner chamber of valve body 20, and valve rod 1 enters in valve body 20 through valve gap 7.
E type ring 2, push pedal 3, stage clip 4, thumb wheel 5 and spacing jump ring 6 are set on the valve rod 1 on valve gap 7 top, pressing valve rod 1, drive E type ring 2, push pedal 3 and stage clip 4 to open sensitive switch 15.Thumb wheel 5 after simultaneously pressing down departs from the position-limited nail on valve gap, and the valve stem cylinder body 18 of spacing jump ring 6 and valve gap 7 bottom, for stem depression stroke limit, controls valve rod 1 and presses down amplitude about 1 millimeter, can open sensitive switch 15 and light a fire.
Cam 11 circumference is installed in valve gap 7, and cam 11 inwall is provided with support level and presses down step.Support level is movably installed with the set bar 10 with valve rod 1 synchronous axial system.Support level has the inclined-plane 17 pressed down for driving cam 11, namely valve rod 1 drives set bar 10 to slide along the inclined-plane 17 of support level, drives the cam 11 in valve gap 7 to press down.Pressing down step to compress with valve rod 1 synchronous axial system to be with movable valve plug 9 and the pressing plate 12 axially synchronous with cam 11, this pressing plate 12 has the pressing down section 19 acting on switch valve 14 in spool 9.
Cylinder section 18 is passed by cam 11 inside, the wall of cylinder section 18 has the interlock groove coordinated with set bar 10 and pressing plate 12, namely the pressing down section 19 in set bar 10 and pressing plate 12 enters in interlock groove, makes set bar 10 and pressing plate 12 keep synchronous axial system with valve rod 1.Cam 11 is with dynamic pressure plate 12 to move downward, and presses down the switch valve 14 opened in spool 9, and valve rod 1 is while rotation in addition, is also with movable valve plug 9 to rotate by pressing plate 12, opens the gas-entered passageway in valve body 20.
In the present embodiment, in interlock groove, there is the half the circumference of the sleeve where it joins the shoulder of screens set bar 10, and have in cylinder section 18 and press down set bar 10 and to fit the stage clip 8 of support level, there is in inner chamber the stage clip 13 of top belling wheel 11.Stage clip 8 and stage clip 13 keep, and to control when set bar 10 rotates screens on the half the circumference of the sleeve where it joins the shoulder of interlock groove, and make set bar 10 when static landing to the bottom of interlock groove.
Cam 11 outer wall is provided with for the spacing lug of circumference, and valve gap 7 inwall is provided with the axial groove with they fit.Lug coordinates with axial groove (being parallel to valve rod axial arranged), for stopping that the circumference of cam 11 is rotated, when set bar 10 is climbed on inclined-plane, axial thrust is formed to cam 11, lug vertically groove slides, namely actuating cam 11 presses down, and is with dynamic pressure plate 12 to press down to open switch valve 14.
Pressing plate 12 comprises the ring body being pressed on and pressing down on step, and pressing down section 19 is for being positioned at ring body plate portion diametrically, and spool 9 top is provided with Ingathering board portion to drive the restraining groove of spool 9, and namely pressing plate 12 is when pressing down, and under restraining groove, in-migration presses down and opens switch valve 14.
Be provided with the supported spring that maintained switch valve 14 is normally closed in spool 9, maintained switch valve 14 is in closed state all the time, and the lower end of switch valve 14 is provided with liner 16, can not back down dieback in process.
The foregoing is only better implementation example of the present invention, be not limited to the present invention, all within the present invention's spirit and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. one kind has the fuel gas plug valve of cam limit mechanism, comprise the valve body with inner chamber, the spool being placed in inner chamber, be positioned at inner chamber top valve gap and be movably arranged on valve gap and for driving the valve rod of spool, switch valve is provided with in described spool, it is characterized in that, the cam that circumference is spacing is movably installed with in described valve gap, cam inwall is provided with support level and presses down step
Support level is movably installed with the set bar with valve rod synchronous axial system, described support level has the inclined-plane pressed down for driving cam;
Press down step to compress with valve rod synchronous axial system to be with movable valve plug and with camshaft to synchronous pressing plate, described pressing plate has the pressing down section acting on switch valve in spool.
2. fuel gas plug valve as claimed in claim 1, it is characterized in that, described valve rod comprise through valve gap bar portion and be positioned at the cylinder section of valve gap, described bar portion is arranged with spacing jump ring, and described spacing jump ring and cylinder section coordinate for valve rod sliding axially on valve gap spacing.
3. fuel gas plug valve as claimed in claim 2, it is characterized in that, described cylinder section is passed by cam inside, the barrel of cylinder section has the interlock groove coordinated with described set bar and pressing plate.
4. fuel gas plug valve as claimed in claim 3, is characterized in that, be provided with the half the circumference of the sleeve where it joins the shoulder of screens set bar in described interlock groove, and is provided with the first stage clip pressing down set bar laminating support level in cylinder section.
5. fuel gas plug valve as claimed in claim 4, it is characterized in that, the outer wall of described cam is provided with for the spacing lug of circumference, and valve gap inwall is provided with the axial groove with they fit.
6. fuel gas plug valve as claimed in claim 1, is characterized in that, has the second stage clip of the described cam of top pressure in described inner chamber.
7. fuel gas plug valve as claimed in claim 1, it is characterized in that, described pressing plate comprises the ring body being pressed on and pressing down on step, and described pressing down section is be positioned at ring body plate portion diametrically.
8. fuel gas plug valve as claimed in claim 7, is characterized in that, described spool top is provided with the described plate portion of storage to drive the restraining groove of spool.
9. fuel gas plug valve as claimed in claim 1, is characterized in that, be provided with the supported spring that maintained switch valve is normally closed in described spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622263.0A CN105240559B (en) | 2015-09-25 | 2015-09-25 | A kind of fuel gas plug valve with cam limit mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622263.0A CN105240559B (en) | 2015-09-25 | 2015-09-25 | A kind of fuel gas plug valve with cam limit mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105240559A true CN105240559A (en) | 2016-01-13 |
| CN105240559B CN105240559B (en) | 2018-03-16 |
Family
ID=55038326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510622263.0A Active CN105240559B (en) | 2015-09-25 | 2015-09-25 | A kind of fuel gas plug valve with cam limit mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105240559B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518501A (en) * | 2018-06-15 | 2018-09-11 | 温岭华哲电器科技有限公司 | A kind of fuel gas plug valve |
| CN110617478A (en) * | 2019-09-09 | 2019-12-27 | 华帝股份有限公司 | Spacing gas phase valve and use its handheld gas torch in ground |
| CN110953365A (en) * | 2019-12-30 | 2020-04-03 | 浙江新涛智控科技股份有限公司 | Gas plug valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB402739A (en) * | 1932-03-04 | 1933-12-07 | Faure Pere & Fils Sarl | Improvements in or relating to gas cocks |
| CN1281120A (en) * | 1999-07-14 | 2001-01-24 | 林内株式会社 | Burnt gas switch |
| CN2554514Y (en) * | 2002-03-14 | 2003-06-04 | 豪山国际股份有限公司 | Gas switch with closd rod buffer protection |
| CN101832411A (en) * | 2010-04-30 | 2010-09-15 | 李雪亚 | Gas plug valve |
| CN205013734U (en) * | 2015-09-25 | 2016-02-03 | 浙江新涛电子机械股份有限公司 | Gas cock valve with cam stop gear |
-
2015
- 2015-09-25 CN CN201510622263.0A patent/CN105240559B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB402739A (en) * | 1932-03-04 | 1933-12-07 | Faure Pere & Fils Sarl | Improvements in or relating to gas cocks |
| CN1281120A (en) * | 1999-07-14 | 2001-01-24 | 林内株式会社 | Burnt gas switch |
| CN2554514Y (en) * | 2002-03-14 | 2003-06-04 | 豪山国际股份有限公司 | Gas switch with closd rod buffer protection |
| CN101832411A (en) * | 2010-04-30 | 2010-09-15 | 李雪亚 | Gas plug valve |
| CN205013734U (en) * | 2015-09-25 | 2016-02-03 | 浙江新涛电子机械股份有限公司 | Gas cock valve with cam stop gear |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518501A (en) * | 2018-06-15 | 2018-09-11 | 温岭华哲电器科技有限公司 | A kind of fuel gas plug valve |
| CN108518501B (en) * | 2018-06-15 | 2024-03-22 | 林科宇 | Gas plug valve |
| CN110617478A (en) * | 2019-09-09 | 2019-12-27 | 华帝股份有限公司 | Spacing gas phase valve and use its handheld gas torch in ground |
| CN110953365A (en) * | 2019-12-30 | 2020-04-03 | 浙江新涛智控科技股份有限公司 | Gas plug valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105240559B (en) | 2018-03-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 312500 Xinchang County, Zhejiang Province, Tao Road, No. 68, No. Applicant after: Zhejiang Xin Tao Zhi Polytron Technologies Inc Address before: The new Tao road 312500 County of Xinchang province Shaoxing City, Zhejiang province high tech Development Zone No. 68 Applicant before: Zhejiang Xintao Electronic Co., Ltd. |
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| GR01 | Patent grant |