CN109237065A - fuel gas plug valve - Google Patents
fuel gas plug valve Download PDFInfo
- Publication number
- CN109237065A CN109237065A CN201811353572.2A CN201811353572A CN109237065A CN 109237065 A CN109237065 A CN 109237065A CN 201811353572 A CN201811353572 A CN 201811353572A CN 109237065 A CN109237065 A CN 109237065A
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- China
- Prior art keywords
- microswitch
- valve
- fuel gas
- pressing plate
- valve rod
- 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.)
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Links
- 239000002737 fuel gas Substances 0.000 title claims abstract description 49
- 238000003825 pressing Methods 0.000 claims abstract description 64
- 210000004358 rod cell outer segment Anatomy 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 210000005078 rod cell inner segment Anatomy 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000007634 remodeling Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 17
- 239000007789 gas Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 6
- 239000000567 combustion gas Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 210000003128 head Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- ZSDSQXJSNMTJDA-UHFFFAOYSA-N trifluralin Chemical compound CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O ZSDSQXJSNMTJDA-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a kind of fuel gas plug valves, including valve body (1), valve rod (4) and microswitch (5), the microswitch (5) includes trigger button (51) and microswitch pressing plate (52), the periphery wall of the valve rod (4) is equipped with linkage slot (44), the end of the microswitch pressing plate (52) is protruded into the linkage slot (44), and the valve rod (4) pushes the end of the microswitch pressing plate (52) to press the trigger button (51) by the microswitch pressing plate (52).Microswitch pressing plate after remodeling can directly link microswitch with valve rod, i.e., by the linkage slot on the periphery wall for protruding into valve rod of microswitch pressing plate, so that the structure of the fuel gas plug valve is more simple, reliable.Meanwhile microswitch pressing plate press microswitch trigger button can to avoid between valve rod and trigger button firmly contacting, protect microswitch, improve the service life of microswitch.
Description
Technical field
The present invention relates to household kitchen electric appliance fields, and in particular, to a kind of fuel gas plug valve.
Background technique
In daily kitchen range, fuel gas plug valve is for manually adjusting and controlling combustion gas on-off and regulating gas size
Valve body generally includes other attachment devices such as valve body, spool, valve rod, microswitch and solenoid valve composition.Fuel gas plug valve
Main operational principle is: combustion gas enters by valve body air inlet, successively passes through solenoid valve, subsequently into spool, finally passes through valve
The side opening of core is connected with the lateral opening hole of escape pipe, and then realizes that gas-cooker, this is a complicated combustion for combustion gas
Gas control process.
In fuel gas plug valve common at present, the overall structure of plug valve is complex, functional component, the components for including
It is more, and the matching relationship between each functional component is also relatively complicated and close.Since amount of parts is in the majority, each other close
Envelope faying face is more, and gas leakage risk is also larger.
Wherein, it is provided with valve seat on the valve body of conventional fuel gas plug valve, is provided with below valve seat for giving cock valve point
The microswitch of fire, the microswitch fixed plate (or for microswitch connecting plate) for fixing the microswitch and for fixing
With the split washer and locating piece of connection microswitch pressing plate.The lower section of locating piece is arranged in microswitch pressing plate one end, another
The top of the trigger button of microswitch is arranged in end, when depressed stem, is located at microswitch pressing plate and positioning by compression
Seating spring below block simultaneously drives microswitch pressing plate to press the trigger button of microswitch to trigger unlatching microswitch, knot
Structure relationship is complex.
In addition, being provided with the needle for protruding into valve core inside below valve rod.Needle is able to drive during depressed stem
It moving down and contradicts to the driving lever that can touch solenoid valve unlatching, first plectrum of one end of driving lever is connected to the bottom end of needle,
Second plectrum of the other end abuts the sealing-plug of solenoid valve.Wherein, the second plectrum squeezes the same of the mobile opens solenoid valve of sealing-plug
When, additionally it is possible to open electromagnetic valve air inlet and combustion gas be able to enter in solenoid valve, so as to gas circuit can by solenoid valve this
Channel is simultaneously further connected.For this purpose, the structure of existing second plectrum is usually to have the hook-shaped plectrum in right angle, the end hook
Shape structure needs to protrude into solenoid valve, so that driving lever overall structure is complex, and the installation space needed is larger.This
Sample, in the existing structure, the bottom of valve body are equipped with the closure construction of rear cover, after driving lever is installed into valve chamber, then by rear cover
Capping also needs that fastener and sealing element is arranged on the valve chamber of body base, with ensure rear cover fixed function and
The leakproofness of valve chamber.
Summary of the invention
A kind of the object of the present invention is to provide structures simple, the higher fuel gas plug valve of reliability.
To achieve the goals above, the present invention provides a kind of fuel gas plug valve, including valve body, valve rod and microswitch, institute
Stating microswitch includes trigger button and microswitch pressing plate, and the periphery wall of the valve rod is equipped with linkage slot, and the fine motion is opened
The end for closing pressing plate is protruded into the linkage slot, and the end of microswitch pressing plate described in the depressed stem is to pass through the fine motion
Switch press plate presses the trigger button.
Preferably, the valve body includes the valve seat being sealed on above the valve body, and the microswitch is mounted on the valve
On seat, the valve rod includes the valve rod inner segment for protruding into valve chamber and the valve rod outer segment above the valve seat, and the linkage slot is set
It is placed in the valve rod outer segment.
Preferably, the valve seat is equipped with valve rod via hole and guide sleeve, and the guide sleeve is arranged around the valve rod via hole and from institute
The top surface for stating valve seat upwardly extends, and the linkage slot position is in the top of the guide sleeve.
Preferably, the axial height of the guide sleeve is not more than 10mm.
Preferably, the valve seat is equipped with valve rod via hole and guide sleeve, and the guide sleeve is arranged around the valve rod via hole and from institute
The top surface for stating valve seat upwardly extends, and the periphery wall of the guide sleeve is equipped with the lateral openings towards the microswitch side, described
Microswitch pressing plate passes through the lateral openings of the guide sleeve and protrudes into the linkage slot.
Preferably, the axial height of the guide sleeve is not less than 8mm.
Preferably, the microswitch pressing plate includes for pressing the oblique press section of the trigger button, horizontally extending into
The linkage section of cantilever dip section and the connection oblique press section and the cantilever dip section in the linkage slot is described oblique
It is fixed on the microswitch to one end of press section.
Preferably, the microswitch pressing plate is the elastic metallic pressing plate for bending strip.
Preferably, the linkage slot is the groove that groove depth is not less than 1mm.
Preferably, the fuel gas plug valve further includes the microswitch connecting with the valve body, is set on the microswitch
It is equipped with ground terminal, the ground terminal is connected with the metal earthing sheet for picking out from the ground terminal and connecting with the valve body.
Through the above technical solutions, the microswitch pressing plate after remodeling can directly link microswitch with valve rod, i.e.,
By in the linkage slot on the periphery wall for protruding into valve rod of microswitch pressing plate, so that the structure of the fuel gas plug valve is more simple
It is single, reliable.Also, among these, mainly change to the shape of the microswitch pressing plate of itself of microswitch, it is such
Optimization can make the ontology of microswitch still use standard component, without in addition die sinking, it is only necessary to change microswitch pressing plate
, versatility is stronger.Meanwhile microswitch pressing plate press the trigger button of microswitch can be to avoid valve rod and trigger button
Between hard contact, protect microswitch, improve the service life of microswitch.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a kind of existing perspective view of the fuel gas plug valve with rear cover, wherein for clarity, part-structure is not
It shows；
Fig. 2 is the assembly explosive view of Fig. 1；
Fig. 3 is the perspective view of the fuel gas plug valve of the first preferred embodiment according to the present invention；
Fig. 4 is the explosive view of Fig. 3；
Fig. 5 is the perspective view of intermediate transmission bar；
Fig. 6 is the top view of Fig. 3；
Fig. 7 is the top view of Fig. 3；
Fig. 8 is the cross-sectional view of the Section A-A in Fig. 7；
Fig. 9 is the partial enlarged view of the part I in Fig. 8；
Figure 10 and Figure 11 is the perspective view of the valve seat of the first preferred embodiment according to the present invention；
Figure 12 and Figure 13 is the perspective view of the valve seat of second of preferred embodiment according to the present invention；
Figure 14 is the perspective view of the valve seat of the third preferred embodiment according to the present invention；
Figure 15 and Figure 16 is the perspective view of the fuel gas plug valve of the second preferred embodiment according to the present invention；
Figure 17 is the perspective view of the microswitch with inching switch pressing plate in Figure 14 and Figure 15；With
Figure 18 is a kind of explosive view for the microswitch that ground terminal connects metal earthing sheet.
Description of symbols
1 valve body, 2 valve seat
3 valve chamber, 4 valve rod
5 microswitch, 6 solenoid valve
7 needle, 8 driving lever
9 intermediate transmission bar, 10 block head
11 driving lever mounting hole, 12 rear cover
13 sealing ring, 14 fastener
21 valve rod via hole, 22 guide sleeve
23 lateral openings, 24 microswitch mounting frame
241 locating slots 41 linkage card slot
42 valve rod outer segment, 43 valve rod inner segment
44 linkage slots
The outer peripheral surface of 412 valve rod of top surface of 411 linkage card slots
413 knuckle, 51 trigger button
52 microswitch pressing plate, 53 ground terminal
54 metal earthing sheets
521 cantilever dip section, 522 linkage section
523 oblique press sections
81 first plectrum, 82 second plectrum
91 outer 92 overcurrent air gaps of fin
The length of L intermediate transmission bar
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually needle
For direction shown in the drawings either for it is vertical, on vertical or gravity direction for each component mutual alignment relation
Word is described.
For the problems such as in existing fuel gas plug valve, the interaction relation of microswitch is complex and components are more,
The present invention provides a kind of novel fuel gas plug valve, which can effectively simplify part category, improve cock
The use reliability of valve.
Referring to shown in Fig. 3, Fig. 7, Fig. 8 and Fig. 9, in the fuel gas plug valve of the first preferred embodiment of the invention, it is somebody's turn to do
Fuel gas plug valve includes valve body 1, valve seat 2, protrudes into valve rod 4 and microswitch 5 in the valve chamber 3 of the lower section of valve seat 2, microswitch
5 are mounted on valve seat 2, and the periphery wall of valve rod 4 is equipped with the linkage card slot 41 being located at outside valve seat 2, and the triggering of microswitch 5 is pressed
Button 51 protrudes into linkage card slot 41 and is pressed triggering during the pushing of valve rod 4.
In fuel gas plug valve of the invention, due to will be moved on valve seat 2 on microswitch 5, and microswitch 5 is direct
It links and is arranged with valve rod 2, and the structure of the fuel gas plug valve is effectively optimized and simplified, to eliminate existing
At least five such as split washer, location hole, fine motion card pipe pressing plate, valve rod spring and microswitch fixed plate in fuel gas plug valve
Components greatly reduce the usage quantity of components, reduce production cost, and the assembling capacity and use for improving product can
By property etc..
At the same time, the linkage card slot 41 on valve rod 4 is set to the outside of valve seat 2 by fuel gas plug valve of the invention, can
The trigger button 51 that microswitch 5 is especially protruded into linkage card slot 41 is directly exposed, so as to reduce
It is caused micro- due to being collected at the near contacts between trigger button 51 and valve rod 4 after the sundries such as the soup that valve rod 4 is fallen into
Dynamic switch 5, which gets rusty, even there is the problems such as misfire with timeliness, further improves the reliability and service performance of product.
When there is deviation or is easy to appear shaking using rear valve rod 4 for a long time in the accuracy of manufacture of valve rod 4,
It is easy to cause the lower pressure surface of linkage card slot 41 to be difficult to touch the trigger button 51 of microswitch 5 during pushing valve rod 4, or
Person, after pushing valve rod 4, the lower pressure surface of valve rod 4 compresses always trigger button 51, beats so as to cause the appearance of microswitch 5 missing of ignition
Or the defective mode often lighted a fire.Can be by the pressure surface of change trigger button 51 to solve the problems, such as this to this, still, fine motion is opened
5 are closed usually as standard component, needs to be opened redesign once changing its shape, to spend certain cost, and cause
Cost waste.For this purpose, particularly, in fuel gas plug valve of the invention, referring to Fig. 8 and Fig. 9, the card slot 41 that links is preferably annular
The top surface 411 of groove, linkage card slot 41 is formed with for planar annular and between the outer peripheral surface of valve rod 4 412 knuckle 413,
Transition circle edged surface is formed as the pressure surface of pressing triggering trigger button 51.By the optimization of the shape of linkage fluting 41, with cooperation
The shape that can be used as the trigger button 51 of standard component has saved product to effectively improve the product reliability of microswitch 5
Production cost.
Further, it is pressed referring to the transition circle edged surface and the triggering with tapered plane for the card slot 41 that shown in Fig. 9 and Figure 18, links
Line contact is formed as between button 51.In this way, there is tapered plane or other planes and trigger button compared to linkage card slot 41
Face contact is formed between 51, this programme contacts pressing specific surface during pressing valve rod 4 to trigger microswitch 5, using line
Contact pressing is more laborsaving, presses more rapidly effective.
As it can be seen that microswitch 5 and trigger button 51 can be standard component, to make in fuel gas plug valve of the invention
The parts such as microswitch 5 and trigger button 51 versatility is higher, cost is lower.
Further, in the linkage card slot 41 of valve rod 4, the radius of corner of knuckle 413 is not less than 0.5mm, with
Can better contact with and interacting with trigger button 51 convenient for valve rod 4.
Wherein, to make the linkage card slot 41 on valve rod 4 be located at the outside of valve seat 2, referring to the present invention of Figure 10 and Figure 11
The first preferred embodiment valve seat 2 and combine Fig. 3 and Fig. 4 fuel gas plug valve shown in, valve seat 2 be equipped with 21 He of valve rod via hole
Guide sleeve 22, guide sleeve 22 are arranged around valve rod via hole 21 and upwardly extend from the top surface of valve seat 2, and the periphery wall of guide sleeve 22 is equipped with direction
The lateral openings 23 of 5 side of microswitch, the lateral openings 23 that trigger button 51 passes through guide sleeve 22 protrude into linkage card slot 41.Cause
This, in fuel gas plug valve of the invention, the top of valve seat 2 is arranged in microswitch 5, and the valve seat 2 has lateral openings
23 guide sleeve 22, which can stretch out upwards to shield and sustain on valve rod 4, so that the contact surface between valve rod 4 and guide sleeve 22
Product is bigger, the phenomenon that so as to further prevent valve rod 4 from shaking.In addition, being adopted compared to usual processing method
With the valve seat 2 of the guide sleeve 22 for being mounted laterally hole of drilling, the lateral openings 23 of the valve seat 2 in the present invention can be with 2 one of valve seat
Casting and forming processes process that is more convenient, and reducing one of drilling, plays the role of save the cost.
To ensure effectively shielding and sustain highly for guide sleeve 22, the axial height range of guide sleeve 22 is not less than 8mm.
Also, the width gaps between the outer wall of trigger button 51 and the side wall of lateral openings 23 are not less than 2mm.In this way,
By by the setting of lateral openings 23 enough to big, with ensure trigger button 51 after protruding into linkage card slot 41, lateral openings 23
It is sufficiently large that gap is installed, the phenomenon that because without sheltering evil people and countenance evil practices, and then antifouling antirust is played to trigger button 51, it is effectively true
The service performance of microswitch 5 is protected.
Preferably, lateral openings 23 are the U-shaped opening extended downwardly from the top edge of guide sleeve 22, so that lateral openings 23
It can become and be open with the draft of 2 integrally casting shaping of valve seat.
Referring to the valve seat 2 of second of preferred embodiment of the invention of Figure 12 and Figure 13 and the gas rotary of combination Fig. 3 and Fig. 4
Shown in plug valve, valve seat 2 is equipped with valve rod via hole 21 and guide sleeve 22, and guide sleeve 22 is arranged around valve rod via hole 21 and from the top surface of valve seat 2
It upwardly extends, linkage card slot 41 is located at the top of guide sleeve 22.Wherein, the top of valve seat 2 is arranged in microswitch 5, also, links
Card slot 41 and trigger button 51 are respectively positioned on the top of guide sleeve 22.This scheme is especially suitable for that dimensional accuracy is high, valve rod 4 is not easy to shake
Fuel gas plug valve facilitates the use for reducing material, plays the role of reducing cost in this way, shortening the size of guide sleeve 22.And
And when the size of guide sleeve 22 enough in short-term, guide sleeve 22 also can be omitted, referring to the third preferred embodiment of the invention of Figure 14
Valve seat 2, and belong to the scope of protection of the present invention.
As shown in FIG. 10 to 14, the top end face of valve seat 2 may be provided with microswitch mounting frame 24, microswitch installation
The locating slot 241 for installing microswitch 5 is provided on bracket 24, so that the installation effect of microswitch 4 is more steady
Gu.
As shown in Figure 16 and Figure 17, in the fuel gas plug valve of the second preferred embodiment of the invention, the Gas cock
Valve includes valve body 1, valve rod 4 and microswitch 5, and microswitch 5 includes trigger button 51 and microswitch pressing plate 52, valve rod 4
Periphery wall is equipped with linkage slot 44, and the end of microswitch pressing plate 52 is protruded into linkage slot 44, and valve rod 4 pushes microswitch pressing plate
52 end is to press trigger button 51 by microswitch pressing plate 52.
Therefore, in the present solution, can be direct by microswitch 5 and valve rod 2 by the microswitch pressing plate 52 after remodeling
Linkage, i.e., by the linkage slot 44 on the periphery wall for protruding into valve rod 4 of microswitch pressing plate 52, so that the fuel gas plug valve
Structure it is more simple, reliable.Also, among these, mainly to the shape of the microswitch pressing plate 52 of itself of microswitch 5
It changes, such optimization can make the ontology of microswitch 5 still use standard component, without in addition die sinking, it is only necessary to
Change microswitch pressing plate 52, versatility is stronger.Meanwhile microswitch pressing plate 52 presses the trigger button of microswitch 5
51 can protect microswitch 5 to avoid contacting between valve rod 2 and trigger button 51 firmly, and that improves microswitch 5 uses the longevity
Life.
Wherein, valve body 1 includes the valve seat 2 for being sealed on 1 top of valve body, and microswitch 5 is mounted on valve seat 2, and valve rod 4 includes
The valve rod inner segment 43 of valve chamber 3 and the valve rod outer segment 42 above valve seat 2 are protruded into, linkage slot 44 is set in valve rod outer segment 42.
In this way, the split washer in existing fuel gas plug valve, location hole, fine motion card pipe pressing plate, valve rod can also be cancelled in this programme
At least five components of spring and microswitch fixed plate, reduce the usage quantity of components, reduce production cost,
Also, valve seat 2 is equipped with valve rod via hole 21 and guide sleeve 22 (referring to Figure 12, Figure 13 and Figure 14 and Figure 15 and Figure 16 institute
Show), guide sleeve 22 is arranged around valve rod via hole 21 and upwardly extends from the top surface of valve seat 2, and linkage slot 44 is located at the top of guide sleeve 22.
Therefore, it is particluarly suitable in the good situation of plug valve precision, is i.e. in the case that the shaking volume of valve rod 4 is sufficiently small, fine motion is opened
It closes 5 and moves up installation to valve seat 2, can effectively shorten the length of guide sleeve 22, play the beneficial effect for saving material, cost declining.
Similarly, the axial height of guide sleeve 22 is not more than 10mm.Also, in the case that plug valve precision is good enough, valve
Guide sleeve 22 on seat 2 also can be omitted, shown in Figure 14.
In addition, valve seat 2 is equipped with valve rod via hole 21 and guide sleeve 22 referring to shown in Figure 10 and Figure 11 and Figure 15 and Figure 16, lead
Set 22 is arranged around valve rod via hole 21 and upwardly extends from the top surface of valve seat 2, and the periphery wall of guide sleeve 22 is equipped with towards microswitch 5
The lateral openings 23 of side, microswitch pressing plate 52 pass through the lateral openings 23 of guide sleeve 22 and protrude into linkage slot 44.By adding
The phenomenon that extension elongation of long guide sleeve 22 can effectively shield and sustain valve rod 4, reduce and prevent valve rod 4 from shaking.
In this regard, similarly, the axial height of guide sleeve 22 is not less than 8mm.
As shown in figure 17, microswitch pressing plate 52 may include for pressing the oblique press section 523 of trigger button 51, level
The linkage section 522 of the cantilever dip section 521 and connection oblique press section 523 and cantilever dip section 521 in linkage slot 44 is protruded into,
One end of oblique press section 523 is fixed on microswitch 5.In this way, one end of the microswitch pressing plate 52 be pressed against triggering by
51 top of button, the other end protrudes into linkage slot 44, so that being able to drive under microswitch pressing plate 52 when pressing valve rod 4
Microswitch 5 is opened in pressure triggering.
Preferably, microswitch pressing plate 52 is the elastic metallic pressing plate for bending strip, to press microswitch pressing plate
After 52 deformations, microswitch pressing plate 52 can restore in time, especially after pressing the deformation of microswitch pressing plate 52, oblique press section
523 one end can recoil to the top of trigger button 51 in time, the state often lighted a fire is in avoid trigger button 51, so as under
Primary pressing igniting.
Wherein, for ensure microswitch pressing plate 52 can extend into linkage slot 44 in, and can with linkage slot 44 up and down
Mobile and act, linkage slot 44 is the groove that groove depth is not less than 1mm, sufficient between microswitch pressing plate 52 and linkage slot 44 to ensure
Enough contact surfaces.
It is shown in Figure 18, in fuel gas plug valve of the invention, ground terminal 53, ground terminal are provided on microswitch 5
53 are connected with the metal earthing sheet 54 for picking out from ground terminal 53 and connecting with valve body 1, to eliminate the ground terminal of microswitch 5
The ground line drawn on 53 has saved cost, while being also convenient for the assembly of microswitch 5.
In addition, the problems such as being directed to the valve chamber leakproofness of existing fuel gas plug valve, as depicted in figs. 1 and 2, in valve body 1
The structure of driving lever 8 is complex, occupied space is big, so that the construction opening of driving lever 8 is larger, accordingly, the bottom of valve body 1
It is provided with the rear cover 12 for closure base portion valve chamber 3, by multiple fasteners 14 that rear cover 12 is fixed on valve body 1 and is used for close
The sealing ring 13 of envelope, in this regard, the present invention also provides a kind of novel fuel gas plug valves.Referring to shown in Fig. 3, Fig. 4 and Fig. 6, it is somebody's turn to do
Fuel gas plug valve includes that valve body 1, needle 7, driving lever 8 and the solenoid valve 6 being arranged in valve body air inlet gas circuit, needle 7 are vertically arranged
In valve chamber 3, one end of driving lever 8 is equipped with the first plectrum 81 that transmission is abutted with the bottom end of needle 7, and the other end of driving lever 8 is equipped with
For triggering the second plectrum 82 of solenoid valve 6, solenoid valve 6 includes the sealing-plug 61 for blocking electromagnetic valve air inlet, sealing-plug 61
Front end is equipped with the intermediate transmission bar 9 coaxially stretched out, and when needle 7 pushes the first plectrum 81, the second plectrum 82 stirs intermediate transmission bar 9
Sealing-plug 61 is opened to push.
As it can be seen that in fuel gas plug valve of the invention, due to adding intermediate transmission bar 9 at electromagnetic valve air inlet, thus
The structure of driving lever 8 can be accordingly optimized, especially to the sealing-plug 61 for connecting electromagnetic valve air inlet one end of driving lever 8
The structure optimization of second plectrum 82 is cancelled the hook-shaped plectrum for protruding into electromagnetic valve air inlet one end on the second plectrum 82, and then is obtained
To the driving lever 8 as shown in Figure 4 of this programme.In this way, the opening area of installation driving lever 8 can be reduced, facilitate the peace of driving lever 8
Dress, improves the leakproofness of the valve chamber 3 of entire valve body 1.
Wherein, intermediate transmission bar 9 is preferably plastic part or silica gel part.In this way, being closed in the transmission of driving lever 8 and solenoid valve 6
Increase in system and is provided with one with elasticity or wear-resisting drive mechanism.Therefore, dialling using metal material can on the one hand be prevented
Metal fillings is fallen after long-term friction between bar 8 (the second plectrum 82) and solenoid valve 6 (sealing-plug 61), leads to solenoid valve 6
The phenomenon that air inlet one end leaks air, still further aspect avoid driving lever 8 and contact with the hard of solenoid valve 6, protect solenoid valve 6,
Extend the service life of solenoid valve 6.
Shown in Figure 5, intermediate transmission bar 9 includes the multiple outer of diverging and circumferentially spaced arrangement outward radially from a center
Fin 91, the number of outer fin 91 are not less than 3, form overcurrent air gap 92 between adjacent outer fin 91.The purpose for the arrangement is that
In order to enable there are gaps for the air inlet of solenoid valve 6, so that the second plectrum 82 when driving lever 8 stirs intermediate transmission bar 9 and pushes
When opening sealing-plug 61, the combustion gas gas circuit between valve chamber 3 and solenoid valve 6 is connected.
Certainly, the shape of intermediate transmission bar 9 can there are many, it is preferable that the cross section of intermediate transmission bar 9 be tri-star
(as shown in Figure 5), quadrangle star or five-pointed star.
Wherein, intermediate transmission bar 9 and the interval of sealing-plug 61 are arranged, i.e., intermediate transmission bar 9 is independently positioned in valve chamber 3,
Its mounting means can be simply held in the valve chamber 3 of valve body 1, alternatively, the end of intermediate transmission bar 9 be bonded and fixed to it is close
On blocking 61, facilitate the installation steps for reducing part, to improve production efficiency.
And according to the size of the installation space of actual valve chamber 3 and valve body 1, the size model of the length L of intermediate transmission bar 9
It encloses preferably for 4mm~8mm.
Wherein, in optimized driving lever 8, the length of the second plectrum 82 can be not more than the length of the first plectrum 81.
Particularly, valve body 1 is preferably integrally formed part, and the bottom periphery wall of valve body 1 is equipped with lateral direction penetrating to needle 7
Lower section and the driving lever mounting hole 11 for being connected to valve chamber 3, the insertion of driving lever 8 are installed in driving lever mounting hole 11.Wherein, driving lever mounting hole 11
Extend from the bottom periphery wall of valve body 1 into valve chamber 3, that is, in fuel gas plug valve of the invention, by the lower part of valve body 1
Rear cover 12 is integrated with valve body 1, that is, eliminates rear cover 12 and matched sealing, 13 and two for fixing rear cover 12 it is tight
Firmware 14, referring to Fig. 1 and Fig. 2.Such improvement can reduce a sealing surface, so that the risk of plug valve gas leakage is reduced,
Structure is simpler, improves the stability of valve body, and sealing performance is more preferable.
Meanwhile pass-through entry of the driving lever mounting hole 11 on the bottom periphery wall of valve body 1 is equipped with block head 10.
Also, block head 10 and driving lever mounting hole 11 are equipped with the fastening thread being mutually matched.Block head 10 is adopted with valve body 1
With the mode that is removably installed, plug is used with the connection type of valve body and is threadedly coupled, when there is loading error in the inside, example
As driving lever 8 installation direction mistake when, plug can be dismantled, be reinstalled, feasibility is higher, and it is more simple, reasonable to design.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of fuel gas plug valve, including valve body (1), valve rod (4) and microswitch (5), the microswitch (5) includes triggering
Button (51) and microswitch pressing plate (52), which is characterized in that the periphery wall of the valve rod (4) is equipped with linkage slot (44), institute
The end for stating microswitch pressing plate (52) is protruded into the linkage slot (44), and the valve rod (4) pushes the microswitch pressing plate
(52) end is to press the trigger button (51) by the microswitch pressing plate (52).
2. fuel gas plug valve according to claim 1, which is characterized in that the valve body (1) includes being sealed on the valve body
(1) valve seat (2) above, the microswitch (5) are mounted on the valve seat (2), and the valve rod (4) includes protruding into valve chamber
(3) valve rod inner segment (43) and the valve rod outer segment (42) above the valve seat (2), the linkage slot (44) are set to described
In valve rod outer segment (42).
3. fuel gas plug valve according to claim 2, which is characterized in that the valve seat (2) be equipped with valve rod via hole (21) and
Guide sleeve (22), the guide sleeve (22) are arranged and upwardly extend from the top surface of the valve seat (2), institute around the valve rod via hole (21)
State the top that linkage slot (44) is located at the guide sleeve (22).
4. fuel gas plug valve according to claim 3, which is characterized in that the axial height of the guide sleeve (22) is not more than
10mm。
5. fuel gas plug valve according to claim 2, which is characterized in that the valve seat (2) be equipped with valve rod via hole (21) and
Guide sleeve (22), the guide sleeve (22) are arranged and upwardly extend from the top surface of the valve seat (2), institute around the valve rod via hole (21)
The periphery wall of guide sleeve (22) is stated equipped with the lateral openings (23) towards the microswitch (5) side, the microswitch pressing plate
(52) lateral openings (23) of the guide sleeve (22) are passed through and are protruded into the linkage slot (44).
6. fuel gas plug valve according to claim 5, which is characterized in that the axial height of the guide sleeve (22) is not less than
8mm。
7. fuel gas plug valve according to claim 1, which is characterized in that the microswitch pressing plate (52) includes for touching
It presses the oblique press section (523) of the trigger button (51), horizontally extend into the cantilever dip section (521) in linkage slot (44)
And the linkage section (522) of the connection oblique press section (523) and the cantilever dip section (521), the oblique press section
(523) one end is fixed on the microswitch (5).
8. fuel gas plug valve according to claim 7, which is characterized in that the microswitch pressing plate (52) is bending strip
The elastic metallic pressing plate of shape.
9. fuel gas plug valve according to claim 1, which is characterized in that the linkage slot (44) is that groove depth is not less than 1mm
Groove.
10. fuel gas plug valve according to claim 1, which is characterized in that the fuel gas plug valve further includes and the valve
The microswitch (5) of body (1) connection, is provided with ground terminal (53) on the microswitch (5), the ground terminal (53) is connected with
The metal earthing sheet (54) for picking out from the ground terminal (53) and being connect with the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811353572.2A CN109237065A (en) | 2018-11-14 | 2018-11-14 | fuel gas plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811353572.2A CN109237065A (en) | 2018-11-14 | 2018-11-14 | fuel gas plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109237065A true CN109237065A (en) | 2019-01-18 |
Family
ID=65074698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811353572.2A Pending CN109237065A (en) | 2018-11-14 | 2018-11-14 | fuel gas plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109237065A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396587A (en) * | 2020-04-10 | 2020-07-10 | 佛山市顺德区美的洗涤电器制造有限公司 | Plug valve and household appliance |
| WO2021253949A1 (en) * | 2020-06-19 | 2021-12-23 | 佛山市顺德区美的洗涤电器制造有限公司 | Damping switch, plug valve and gas appliance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111396587A (en) * | 2020-04-10 | 2020-07-10 | 佛山市顺德区美的洗涤电器制造有限公司 | Plug valve and household appliance |
| CN111396587B (en) * | 2020-04-10 | 2022-02-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Plug valve and household appliance |
| WO2021253949A1 (en) * | 2020-06-19 | 2021-12-23 | 佛山市顺德区美的洗涤电器制造有限公司 | Damping switch, plug valve and gas appliance |
| EP4043767A4 (en) * | 2020-06-19 | 2023-08-30 | Foshan Shunde Midea Washing Appliances Manufacturing Co., Ltd. | Damping switch, plug valve and gas appliance |
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