CN105240559B - A kind of fuel gas plug valve with cam limit mechanism - Google Patents
A kind of fuel gas plug valve with cam limit mechanism Download PDFInfo
- Publication number
- CN105240559B CN105240559B CN201510622263.0A CN201510622263A CN105240559B CN 105240559 B CN105240559 B CN 105240559B CN 201510622263 A CN201510622263 A CN 201510622263A CN 105240559 B CN105240559 B CN 105240559B
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- China
- Prior art keywords
- valve
- cam
- bonnet
- fuel gas
- gas plug
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- 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.)
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Classifications
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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
- F16K5/02—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
-
- 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 kind of fuel gas plug valve with cam limit mechanism, including the valve body with inner chamber, the valve element being placed in inner chamber, the bonnet positioned at inner chamber top and the valve rod for driving valve element is movably arranged in bonnet and be used for, switch valve is provided with the valve element；Circumferential spacing cam is movably installed with the bonnet, cam inwall is provided with support level and pushes step；The set bar with valve rod synchronous axial system is movably installed with support level, the support level, which has, is used for the inclined-plane that driving cam pushes；Pushing step and compressing has the pressing down section for acting on switch valve in valve element with valve rod synchronous axial system with the pressing plate synchronous with movable valve plug and with cam axial direction, the pressing plate.Stability Analysis of Structures of the present invention, while rotation valve rod adjusts inlet channel size, the switch valve of valve element bottom is opened, shortens depressed stem stroke, reduces the pressure of application needed for valve rod.
Description
Technical field
The present invention relates to a kind of fuel gas plug valve, more particularly to a kind of fuel gas plug valve with cam limit mechanism.
Background technology
Fuel gas plug valve in various gas utensils, it is the manual manipulation valve for controlling source of the gas supply.Common fuel gas plug valve
Generally comprising in the valve body for offering inlet channel and outlet passageway, valve body has the valve element with big fire hole and small fire hole and one
Rotary knob rod.In use, the outlet passageway end of cock valve body is connected use with nozzle, user can be by being arranged on operating surface
Knob on plate and the rotary knob rod under operation knob, typically first press knob and rotate counterclockwise, you can band movable valve plug is counterclockwise
Rotate, the big fire hole on valve element is connected with the inlet channel in valve body, now, source of the gas can pass through inlet channel, outlet
Passage and from nozzle spray, for gas utensil use.When turning the intensity of a fire down, user continues to rotate counterclockwise knob, makes on valve element
Small fire hole be connected with the inlet channel in valve body, reduce the circulation passage of source of the gas and reach reduce the intensity of a fire purpose.
For example, existing Publication No. CN101832411A Chinese patent literature discloses a kind of fuel gas plug valve, including
Valve body, valve element, bonnet, rotary knob rod, locating wheel and fixed aunular sheet with rotary knob rod synchronous axial system；Wherein, valve element has centre bore,
And periphery is provided with big fire hole, small fire hole；Rotary knob rod can move with respect to the displacement of bonnet bound and can be with movable valve plug synchronous axial system；
The inside top of bonnet has the first block to center protrusion, can stopping the first projection, also, has in the inner chamber of bonnet
First retaining wall, the second retaining wall.
In above-mentioned fuel gas plug valve, when plug valve returns back to big fire position from small fire position, valve element is from small fire hole and valve
When the inlet channel communicating state of body returns back to its big fire hole and communicated with the inlet channel of valve body, the position of valve element can be also accurately positioned
Put, ensure that the big fire hole on valve element communicates completely with the inlet channel of valve body, facilitate plug valve to pull back to the big intensity of a fire.
Existing fuel gas plug valve is in opening procedure, it usually needs knob is fully depressed by by force, is opened in valve body
The switch valve of chamber, then rotating counterclockwise to adjust the intensity of a fire, that is, needs with larger pressing force pressure switches valve, operation inconvenience.
The content of the invention
The problem of to overcome prior art to exist, the invention provides a kind of Gas cock with cam limit mechanism
Valve, while rotation valve rod adjusts channel sized, the switch valve of valve element bottom is opened, shorten the amplitude of depressed stem, and change
The existing mode of operation that switch valve is opened by pressing valve rod, Stability Analysis of Structures.
The concrete technical scheme of the present invention is as follows：
A kind of fuel gas plug valve with cam limit mechanism, including the valve body with inner chamber, be placed in inner chamber valve element,
Positioned at inner chamber top bonnet and be movably arranged in bonnet and for driving the valve rod of valve element, be provided with and open in the valve element
Close valve；
Circumferential spacing cam is movably installed with the bonnet, cam inwall is provided with support level and pushes step；
The set bar with valve rod synchronous axial system is movably installed with support level, the support level has convex for driving
Take turns the inclined-plane pushed；
Step is pushed to compress with valve rod synchronous axial system with the pressing plate synchronous with movable valve plug and with cam axial direction, the pressure
Plate has the pressing down section for acting on switch valve in valve element.
When valve rod in the present invention rotates, inclined-plane upward sliding of the set bar along support level is driven, is driven in bonnet
Cam pushes, and is moved downward by pushing step driving pressing plate, pushes the switch valve opened in valve element, valve rod is in rotation in addition
Meanwhile also by pressing plate band movable valve plug synchronous axial system, open the inlet channel in valve body.
The switch valve of the present invention is opened in valve rod rotation process, rather than is opened by pressing valve rod, and is only needed down
Press the valve rod of 1 millimeter to be lighted a fire to touch microswitch, reduce the pressing stroke of valve rod, and reduce fuel gas plug valve unlatching
Pressing force, it is easy to operation.
Preferably, described valve rod includes the barrel through the bar portion of bonnet and in bonnet, and the bar portion is arranged
Limited location jump ring, the spacing jump ring and barrel coordinate for valve rod on bonnet slide axially it is spacing.
Barrel is right together with spacing jump ring is set in bar portion after bar portion passes through bonnet with respect to the expanding arrangement of bar portion
Valve rod carries out axial limiting, controls the pressing stroke of valve rod.
Preferably, the barrel is had and the set bar and pressing plate by being passed through inside cam on the barrel of barrel
The linkage groove of cooperation, i.e., the pressing down section in set bar and pressing plate enter in linkage groove so that set bar and pressing plate are kept with valve rod
Synchronous axial system.
Preferably, there is the half the circumference of the sleeve where it joins the shoulder of screens set bar in the linkage groove, and have in barrel and push set bar fitting
First stage clip of support level.
The present invention blocks set bar by half the circumference of the sleeve where it joins the shoulder, prevents set bar from producing axle in linkage groove while being rotated on inclined-plane
To movement, the first stage clip is used for top pressure set bar, it is located on half the circumference of the sleeve where it joins the shoulder.
Preferably, the outer wall of the cam, which is provided with, is used for circumferential spacing lug, and bonnet inwall is provided with and they fit
Axial groove.
Lug and axial groove cooperation (axial arranged parallel to valve rod), for stopping the rotation of cam so that set bar edge
When inclined-plane is climbed, axial thrust is formed to cam, groove slides lug vertically, that is, promotes cam to push.
Preferably, there is the second stage clip of cam described in top pressure in the inner chamber.
Second stage clip be used for balance the first stage clip, control set bar rotate when screens linkage groove half the circumference of the sleeve where it joins the shoulder (higher than linkage
The bottom of groove) on, and set bar is slid when static to the bottom of linkage groove；In addition, the second stage clip is additionally operable to withstand pressing plate,
Pressing plate is kept to be close to the pushing on step of cam so that cam and pressing plate keep synchronous interaction in the axial direction.
Preferably, described pressing plate includes being pressed on the ring body pushed on step, and described pressing down section is straight positioned at ring body
Plate portion on footpath, the valve element top, which is provided with, stores the plate portion to drive the stopper slot of valve element, i.e. pressing plate is when pushing, along limit
In-migration pushes opening switch valve under the groove of position.
Preferably, provided with the support spring that maintained switch valve is normally closed in the valve element, maintained switch valve is all the time in closure
State.
Stability Analysis of Structures of the present invention, while rotation valve rod adjusts inlet channel size, open the switch valve of valve element bottom, contracting
Short depressed stem stroke, reduce the pressure applied needed for valve rod.
Brief description of the drawings
Fig. 1 is the structural representation of fuel gas plug valve in the present invention；
Fig. 2 is the top view of fuel gas plug valve in the present invention.
Embodiment
As depicted in figs. 1 and 2, a kind of fuel gas plug valve with cam limit mechanism, valve rod 1, E type rings 2, push pedal 3, pressure
Spring 4, thumb wheel 5, spacing jump ring 6, bonnet 7, stage clip 8, valve element 9, set bar 10, cam 11, pressing plate 12, stage clip 13, switch valve 14,
Microswitch 15, pad 16, inclined-plane 17, barrel 18, pressing down section 19 and valve body 20.
Valve body 20 is provided with inner chamber, and bonnet 7 is covered in the top of inner chamber, valve element 9, cam 12, pressing plate 12, set bar 10 and opens
The interior intracavitary that valve 14 is respectively positioned on valve body 20 is closed, valve rod 1 enters in valve body 20 through bonnet 7.
E type rings 2, push pedal 3, stage clip 4, thumb wheel 5 and spacing jump ring 6 are set on the valve rod 1 on the top of bonnet 7, press valve rod
1, drive E type rings 2, push pedal 3 and stage clip 4 to open microswitch 15.Thumb wheel 5 push simultaneously after departs from the banking pin on bonnet,
The valve rod barrel 18 of spacing jump ring 6 and bonnet 7 bottom is used for stem depression stroke limit, and control valve rod 1 pushes the milli of amplitude about 1
Rice, you can open microswitch 15 and light a fire.
Cam 11 is circumferential to be installed in bonnet 7, and the inwall of cam 11 is provided with support level and pushes step.Support level
On be movably installed with set bar 10 with the synchronous axial system of valve rod 1.Have on support level and be used for the inclined-plane that driving cam 11 pushes
17, i.e. valve rod 1 drives inclined-plane 17 of the set bar 10 along support level to slide, and drives the cam 11 in bonnet 7 to push.Push step
Compress with the synchronous axial system of valve rod 1 with movable valve plug 9 and with the axial synchronous pressing plate 12 of cam 11, there is work on the pressing plate 12
Pressing down section 19 for switch valve 14 in valve element 9.
Barrel 18 is passed through by the inside of cam 11, has what is coordinated with set bar 10 and pressing plate 12 on the wall of barrel 18
Link groove, i.e., the pressing down section 19 in set bar 10 and pressing plate 12 enters in linkage groove so that set bar 10 and pressing plate 12 and valve rod 1
Keep synchronous axial system.Cam 11 moves downward with dynamic pressure plate 12, pushes the switch valve 14 opened in valve element 9, and valve rod 1 is turning in addition
While dynamic, rotated also by pressing plate 12 with movable valve plug 9, open the inlet channel in valve body 20.
In the present embodiment, there is the half the circumference of the sleeve where it joins the shoulder of screens set bar 10 in linkage groove, and have in barrel 18 and push set bar
10 are bonded the stage clip 8 of support levels, the stage clip 13 in inner chamber with top pressure cam 11.Stage clip 8 is kept with stage clip 13, control linkage
Screens is on the half the circumference of the sleeve where it joins the shoulder of linkage groove when pin 10 rotates, and set bar 10 is slid when static to the bottom of linkage groove.
The outer wall of cam 11, which is provided with, is used for circumferential spacing lug, and the inwall of bonnet 7 is provided with the axial groove with they fit.Lug
With axial groove it is (axial arranged parallel to valve rod) coordinate, for stopping circumferentially rotating for cam 11 so that set bar 10 is on inclined-plane
During climbing, axial thrust is formed to cam 11, groove slides lug vertically, that is, promotes cam 11 to push, and with dynamic pressure plate 12
Push and open switch valve 14.
Pressing plate 12 includes being pressed on the ring body that pushes on step, and pressing down section 19 is the plate portion positioned at ring body diametrically, valve element 9
Top is provided with storage plate portion to drive the stopper slot of valve element 9, i.e. pressing plate 12 when pushing, along stopper slot under in-migration push opening and open
Close valve 14.
Closure state is in all the time, is opened provided with the support spring that maintained switch valve 14 is normally closed, maintained switch valve 14 in valve element 9
Close valve 14 lower end pad 16 is installed, will not in open procedure is pushed up dieback.
The foregoing is only the preferable implementation example of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (8)
1. a kind of fuel gas plug valve with cam limit mechanism, including the valve body with inner chamber, the valve element being placed in inner chamber, position
In inner chamber top bonnet and be movably arranged in bonnet and for driving the valve rod of valve element, switch be provided with the valve element
Valve, it is characterised in that circumferential spacing cam is movably installed with the bonnet, cam inwall is provided with support level and bottom platen
Rank,
The set bar with valve rod synchronous axial system is movably installed with support level, the support level, which has, to be used under driving cam
The inclined-plane of pressure；
Step is pushed to compress with valve rod synchronous axial system with the pressing plate synchronous with movable valve plug and with cam axial direction, the pressing plate tool
There is the pressing down section for acting on switch valve in valve element；
Described valve rod includes the barrel through the bar portion of bonnet and in bonnet, and the bar portion is arranged with spacing jump ring,
The spacing jump ring and barrel coordinate for valve rod on bonnet slide axially it is spacing.
2. fuel gas plug valve as claimed in claim 1, it is characterised in that the barrel inside cam by passing through, barrel
Barrel on there is the linkage groove coordinated with the set bar and pressing plate.
3. fuel gas plug valve as claimed in claim 2, it is characterised in that the lift of screens set bar is provided with the linkage groove
Shoulder, and the first stage clip for pushing set bar fitting support level is provided with barrel.
4. fuel gas plug valve as claimed in claim 3, it is characterised in that the outer wall of the cam is provided with for circumferential spacing
Lug, bonnet inwall are provided with the axial groove with they fit.
5. fuel gas plug valve as claimed in claim 1, it is characterised in that have second of cam described in top pressure in the inner chamber
Stage clip.
6. fuel gas plug valve as claimed in claim 1, it is characterised in that described pressing plate includes being pressed on pushing on step
Ring body, described pressing down section are the plate portion positioned at ring body diametrically.
7. fuel gas plug valve as claimed in claim 6, it is characterised in that be provided with the top of the valve element and store the plate portion to drive
The stopper slot of movable valve plug.
8. fuel gas plug valve as claimed in claim 1, it is characterised in that provided with the branch that maintained switch valve is normally closed in the valve element
Support spring.
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 CN105240559A (en) | 2016-01-13 |
| CN105240559B true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105240559A (en) | 2016-01-13 |
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| 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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