CN107477215A - Gas valve - Google Patents
Gas valve Download PDFInfo
- Publication number
- CN107477215A CN107477215A CN201710894307.4A CN201710894307A CN107477215A CN 107477215 A CN107477215 A CN 107477215A CN 201710894307 A CN201710894307 A CN 201710894307A CN 107477215 A CN107477215 A CN 107477215A
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- Prior art keywords
- valve
- air inlet
- gas
- valve element
- valve pocket
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/083—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with tapered plug
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/062—Construction of housing; Use of materials therefor of taps or cocks with conical plugs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a kind of gas valve, including valve body (1) and hollow valve core (2), valve element is pivotally disposed in the valve pocket (12) of valve body, valve pocket includes the valve pocket bottom wall (13) provided with valve pocket air inlet (131), valve element includes the valve element bottom wall (21) provided with valve element air inlet (211), valve element bottom wall is laminated in the top of valve pocket bottom wall and can rotated relative to valve pocket bottom wall, and valve pocket air inlet is adjusted with change by valve pocket air inlet and the overlapping openings area (3) of valve element air inlet.In the gas valve of the present invention, by forming the air inlet opening adjusting structure of rotatable engagement, the valve pocket air inlet of adjustable fuel gas valve between rotary spool valve element air inlet and valve pocket air inlet.In addition, gas valve, which also has, can adjust each ring fire gesture with the small function in Datong District, the angular range of synchronous adjustment is sufficiently wide, and design is humanized.
Description
Technical field
The present invention relates to household kitchen electric appliance field, in particular it relates to a kind of gas valve.
Background technology
In household gas utensils, generally use gas valve controls stopping, open and adjusting in pipeline for combustion gas
Tolerance, and gas valve has good control characteristic and closes sealing property, it is ensured that the safe handling of gas kitchen ranges.
Conventional gas valve mainly has 3 gears, is followed successively by 0 °, 90 ° counterclockwise (along sparking direction of rotation) respectively
With 180 ° of positions, by adjusting corresponding gear to control the size of flame.Wherein, 0 ° of position is the closed position of the gas valve,
That is original position；90 ° of positions are most big fire position；180 ° of positions are the state of most small fire.In addition, turn gas valve is from 90 ° of positions
Put when rotating successively to 0 ° or 180 ° of positions, be gradually reduced for the intensity of a fire, and at 180 °, outer ring fire is closed and interior middle ring fire is in most
Small state.Gas valve of the prior art, in the rotation process of valve element, because the gas flow of air inlet can not obtain very well
Control, and then the change of each ring fire gesture is uneven, and gear is less, user be difficult regulation to the intensity of a fire oneself wanted, it is necessary to
Bend over to check, cause user experience not good enough.
Especially, for the gas valve of multiple nozzles, to control the combustion gas tolerance for flowing into each nozzle, need to set in valve body
Put combustion gas distribution runner and intermediate cavity so that valve body structure is more complicated, bigger, and the cooperation between valve element and valve pocket inwall
Structure is complex so that gas valve processing, manufacturing cost are higher.
The content of the invention
For the drawbacks described above of prior art, the invention provides a kind of gas valve, and its structure is simpler, compact, can
Effectively regulation is small with Datong District into the air inflow and each ring fire gesture of regulation of valve pocket.
To achieve these goals, the present invention provides a kind of gas valve, including valve body and hollow valve core, the valve element can pivots
It is arranged in the valve pocket of the valve body with turning, the valve pocket includes the valve pocket bottom wall provided with valve pocket air inlet, and the valve element includes
Valve element bottom wall provided with valve element air inlet, the valve element bottom wall are laminated in the top of the valve pocket bottom wall and being capable of relatively described valves
Bottom of chamber wall rotation, is entered with the change by the valve pocket air inlet and the overlapping openings area of valve element air inlet to adjust valve pocket
Gas.
Preferably, the valve element along sparking direction of rotation integral cycle rotating during, the valve element air inlet with it is described
The overlapping openings area between valve pocket air inlet is started from scratch gradual increase, is then gradually decrease to zero.
Preferably, the valve pocket air inlet is the rectangular aperture radially extended, and the valve element air inlet is to include radially
The inner circle camber line at interval and the fan circular opening of Section of Outer Ring Line, the inner circle camber line are the concentric circles segmental arc concentric with the valve element,
The Section of Outer Ring Line includes starting gradual change line segment and draws close gradual change line segment, the starting week of the gradual change line segment from the valve element air inlet
Extended radially outwardly to initiating terminal, the gradual change line segment of drawing close is from the end of the starting gradual change line segment towards the valve element air inlet
The circumferential ends of mouth extend radially inwardly and radially move closer to the inner circle camber line.
Preferably, the starting gradual change line segment is straightway, and the gradual change line segment of drawing close is segmental arc.
Preferably, the radical length of the valve pocket air inlet is more than the maximum radial length of the valve element air inlet；It is described
When overlapping openings area is more than zero, the radial inside edge of the valve pocket air inlet and the inner circle tangential or the radial direction
The radially inner side for being at least partially disposed at the inner circle camber line of inner side edge, at least portion of the radial outside edge of the valve pocket air inlet
Divide the radial outside positioned at the Section of Outer Ring Line.
Preferably, the center of circle angular region of the starting gradual change line segment is 30 °~60 °, the center of circle for drawing close gradual change line segment
Angular region is 120 °~180 °.
Preferably, the gas valve includes installed in the body top and drives the valve rod of the Spool rotating, described
Elastic pre-press is provided between the bottom of valve rod and the top of the valve element, the elastic pre-press is arranged to keep the valve element bottom
Wall elasticity is pressed against on the valve pocket bottom wall.
Preferably, circumferential seal circle is provided between the bottom internal perisporium of the valve pocket and the bottom periphery wall of the valve element.
Preferably, the valve body is provided with total air inlet and the inlet chamber below the valve pocket bottom wall, total air inlet
Mouth, the inlet chamber and the valve pocket air inlet are sequentially communicated.
Preferably, the gas valve includes multiple nozzles, and the valve body is each described provided with being respectively communicated with from the valve pocket
The runner of nozzle, the periphery wall of the valve element, which is provided with, is respectively communicated with cavity and axially spaced multiple grooves in valve element,
Multiple grooves are corresponded in corresponding gas port of multiple runners on the internal perisporium of the valve pocket to supply to each
The nozzle.
Preferably, the nozzle includes inner ring nozzle, middle ring nozzle and outer shroud nozzle, the groove include inner ring groove,
Middle ring groove and peripheral groove, the runner include inner ring runner, middle ring runner and outer shroud runner, the inner ring runner, middle ring
Runner and outer shroud runner are respectively formed with inner ring gas port, middle ring gas port and outer shroud gas port in the internal perisporium of the valve pocket.
Preferably, the inner ring groove, middle ring groove and peripheral groove are incomplete annular groove, enabling by described
The rotation of valve element and control each groove of on or off and the corresponding gas port.
Preferably, rotated successively from closed position to ignition location, most big fire position along sparking direction of rotation, the valve element
Most small fire position；
Wherein, when rotating from the ignition location to the most big fire position, the overlapping openings area gradually increases from zero
Greatly to largest face product value, the inner ring groove, middle ring groove and peripheral groove be respectively communicated with the inner ring gas port, middle ring gas port and
Outer shroud gas port；And
When rotating from the most big fire position to the most small fire position, the overlapping openings area is from the maximum area
Value is gradually decrease to the first setting area value, and the inner ring groove, middle ring groove and peripheral groove keep being respectively communicated with described
Ring gas port, middle ring gas port and outer shroud gas port.
Preferably, the outer shroud after also including being arranged at intervals at the most small fire position along the sparking direction of rotation closes fire
Position, when rotating from the most small fire position to the fiery position in outer shroud pass, the overlapping openings area is set from described first
Area value is gradually decrease to the second setting area value, and the inner ring groove and middle ring groove keep being respectively communicated with the inner ring gas port
With middle ring gas port, the peripheral groove staggers with the outer shroud gas port position.
Preferably, also include being arranged at intervals at the pole of rotation after the outer shroud closes fiery position along the sparking direction of rotation
Extreme position, when closing fiery position from the outer shroud and rotating to the rotation extreme position, the overlapping openings area is from described second
Setting area value is gradually decrease to minimal face product value, and the inner ring groove keeps connecting the inner ring gas port, the peripheral groove
Holding is staggered with the outer shroud gas port position, and the middle ring groove staggers with the middle ring gas port position.
In the gas valve of the present invention, formed between the valve element air inlet and valve pocket air inlet of valve element and the bottom of valve pocket
The air inlet opening adjusting structure of rotatable engagement, so as to total air inflow size of adjustable fuel gas valve, simplify valve element and valve body
Complicated water runner design, and then can also simplify the matching structure design of valve element and valve body, combustion gas can be direct by cavity in valve element
Distribution is into the runner for connecting each nozzle so that the overall structure of gas valve is more simple, compact, and manufacturing cost is lower.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is for providing a further understanding of the present invention, and a part for constitution instruction, 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 the stereogram according to the valve element of the preferred embodiment of the present invention；
Fig. 2 is according to a kind of upward view of the valve element of preferred embodiment of the present invention, illustrates valve element air inlet in figure
Shape；
Fig. 3 is according to the upward view of the valve element of another preferred embodiment of the present invention, illustrates valve element air inlet in figure
The shape of mouth；
Fig. 4 is according to the top view of the valve body of the gas valve of the preferred embodiment of the present invention, is illustrated in figure in valve pocket
The structure in portion；
Fig. 5 is according to the structural representation of the valve body of the gas valve of the preferred embodiment of the present invention, and valve is illustrated in figure
The position of bar and total air inlet；
Fig. 6 is to include 3 nozzles according to the structural representation of the gas valve of the preferred embodiment of the present invention, gas valve；
Fig. 7 is the stereogram of valve element；
Fig. 8 is the front view of valve element；
Fig. 9 is the front view of valve element；
Figure 10 is according to the sectional view of the gas valve of the preferred embodiment of the present invention；
Figure 11 is according to the sectional view of the gas valve of the preferred embodiment of the present invention；
Figure 12 a~Figure 12 e are according to the sectional view (along valve element bottom wall) of the gas valve of the preferred embodiment of the present invention, figure
In illustrate when valve element successively in the counterclockwise direction rotate 0 °, 90 °, 200 °, 220 ° and 235 ° when corresponding each overlapping openings
Area；
Figure 13 a~Figure 13 e are respectively the partial enlarged drawing of Figure 12 a~Figure 12 e part A~E each state；
Figure 14 is the floor map deployed along axle center of valve element；
Figure 15 is the floor map deployed along axle center of valve pocket, and the position of each gas port is closed in main presentation valve pocket in figure
System.
Description of reference numerals
The valve element of 1 valve body 2
The valve rod of 3 overlapping openings area 4
The 5 elastic circumferential seal circles of pre-press 6
The valve pocket of 7 nozzle 12
13 valve pocket bottom wall, 14 total air inlet
The groove of 21 valve element bottom wall 22
Cavity in 23 valve elements
The inner ring nozzle of 25 insert body 71
The outer shroud nozzle of 72 middle ring nozzle 73
The valve element air inlet of 131 valve pocket air inlet 211
The Section of Outer Ring Line of 212 inner circle camber line 213
214 starting gradual change line segments 215 draw close gradual change line segment
The middle ring gas port of 161 inner ring gas port 162
163 outer shroud gas ports
The middle ring groove of 221 inner ring groove 222
223 peripheral grooves
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In the present invention, in the case where not making opposite explanation, the noun of locality such as " upper and lower, top, bottom " used is typically pin
For direction shown in the drawings either for each part mutual alignment relation on vertical, vertical or gravity direction
Word is described.
For gas valve charge flow rate adjustment structure it is complex the problems such as, the invention provides a kind of valve element, such as Fig. 1
Shown, the valve element 2 includes insert body 25, and the insert body 25 has cavity 23 in valve element, and valve element 2 also includes being arranged on valve element
The valve element air inlet adjustment piece of the bottom of body 25, valve element air inlet adjustment piece are used for the charge flow rate of cavity 23 in adjusting spool, with
Realize total air inflow regulation of gas valve.
By setting up valve element air inlet adjustment piece, the combustion gas tolerance for entering cavity 23 in valve element is can control, so as in this valve element
During applied to gas valve, total air inflow of adjustable fuel gas valve, and then the existing distribution flow passage structure of conventional valve body can be simplified
Deng.
Wherein, the structure of valve element air inlet adjustment piece, form can have various.For example, valve element air inlet adjustment piece can be used for
Capping or the gate for opening the bottom opening of cavity 23 in valve element, or valve element air inlet adjustment piece are provided with the He of valve element air inlet 211
For covering or opening the gate of valve element air inlet 211, so as to by the aperture of gate adjusting spool air inlet 211, to adjust
Section enters the charge flow rate of cavity 23 in valve element.
However, to cause compact-sized, miniaturization, in a kind of valve element 2 of specific preferred embodiment of the present invention, as Fig. 1,
Shown in Fig. 2, insert body 25 includes the valve element bottom wall 21 as valve element air inlet adjustment piece, and valve element bottom wall 21 is provided with valve element air inlet
211.Valve element air inlet 211 follows valve element 2 to rotate as rotation opening, correspondingly, can separately set permanent opening (such as to scheme
4 valve pocket air inlet 131), by rotating intersection (i.e. overlapping open Figure 13 b~Figure 13 e shown in of the opening with permanent opening
Open area 3) size carry out total air inflow of regulating gas valve, will also be specifically described below.
Preferably, this valve element bottom wall 21 is integrally formed with insert body 25, is easy to fabricate.
Wherein, the structure of valve element air inlet 211 and shape can have diversified forms, in a kind of valve element of preferred constructive form
In air inlet 211, as shown in Fig. 2 valve element air inlet 211 is in substantially fan ring-type and including the radially spaced He of inner circle camber line 212
Section of Outer Ring Line 213, inner circle camber line 212 are the concentric circles segmental arc concentric with valve element 2, and Section of Outer Ring Line 213 includes the He of starting gradual change line segment 214
Gradual change line segment 215 is drawn close, starting gradual change line segment 214 extends radially outwardly from the circumferential initiating terminal of valve element air inlet 211, drawn close gradually
Become line segment 215 to extend radially inwardly towards the circumferential ends of valve element air inlet 211 and along footpath from the end of starting gradual change line segment 214
To moving closer to inner circle camber line 212.
When valve element 2, rotary work, combustion gas are entered from the valve element air inlet 211 positioned at starting gradual change line segment 214 in gas valve
It is fashionable, because starting gradual change line segment 214 gradually extends radially outwardly so that the distance between inner circle camber line 212 and Section of Outer Ring Line 213
It is more and more wider, become larger so as to the coinciding openings area 3 of valve element air inlet 211 and valve pocket air inlet 131 so that combustion gas enters
Amount is relatively increasing.When gradual change line segment 215 is drawn close on edge continues rotation, due to drawing close gradual change line segment 215 gradually radially-inwardly
Close to Section of Outer Ring Line 213 so that the coinciding openings area 3 of valve pocket air inlet 131 and valve element air inlet 21 tapers into, and combustion gas enters
Amount is relatively less and less, so as to control the gas inlet amount for entering cavity 23 in valve element.
Simultaneously as starting gradual change line segment 214 and draw close gradual change line segment 215 relative to 212 gradual extension of inner circle camber line or
Close linear change, hence in so that the linear increasing or decreasing of air inflow energy of the combustion gas, to cause gas valve from igniting shape
Then state linear change tapers into, finally the fray-out of flame without combustion gas entrance from most big fire state again to most big fire.
Preferably, it is straightway to originate gradual change line segment 214, and it is segmental arc to draw close gradual change line segment 215, to realize preferably fire
The linear gradient regulation of gesture.
Further, the central angle for originating gradual change line segment 214 ranges preferably from 30 °~60 °, the angle be gas valve most
Preferred air inlet angle scope before big fire position；The central angle for drawing close gradual change line segment 215 ranges preferably from 120 °~180 °, the angle
Spend to be rotated from most big fire position to the adjustable extent of minimum fire screen position.
The valve element air inlet 211 of another preferred form, as shown in figure 3, valve element air inlet 211 can be to radially extend
Rectangular aperture.That is the shape of valve pocket air inlet 131 and valve element air inlet 21 is exchanged.
On this basis, in the valve element 2 of the present invention, as shown in figure 1, the periphery wall of valve element 2 is provided with multiple grooves 22,
Multiple grooves 22 are respectively communicated with valve element cavity 23 and axially spaced apart from each other, with corresponding different multiple combustion gas runners.Work as combustion gas
From the valve element 2 with adjustable air inflow function enter into valve element in after cavity 23, directly can be flowed from each groove 22
To each nozzle 7, so as to meet the function of the intensity of a fire synchronization gradual change of each runner regulation so that valve element, valve body structure are more
For simplification.
Preferably, groove 22 is incomplete annular groove, and groove 22 is interior formed with the through hole for connecting the hollow chamber 23 of valve element, so that
Obtaining to rotate by valve element 2 controls the on or off of runner corresponding to each groove 22 to control, and will also be specifically described below.
Likewise, present invention also offers a kind of valve body of gas valve, as shown in Figure 4 and Figure 5, the gas valve includes having
The valve body 1 of valve pocket 12, valve body 1 are provided with total air inlet 14 and valve pocket air inlet adjustment structure, and valve pocket air inlet adjustment structure is used to adjust
Enter the gas flow of valve pocket 12 from total air inlet 14.
By setting up valve pocket air inlet adjustment structure, the gas flow of valve pocket 12 is passed through with regulation, it is multiple without redesigning
Miscellaneous combustion gas distributes runner etc. to adjust the assignment of traffic and size of each combustion gas runner, simplifies the structure of gas valve.
Usually, valve body 1 is provided with the inlet chamber positioned at the lower section of valve pocket 12, and total air inlet 14 connects inlet chamber, so as to valve pocket
Air inlet adjustment structure may be provided between valve pocket 12 and inlet chamber.
Total air inlet 14 of gas valve is generally arranged at the side wall close to the bottom of valve body 2, as shown in figure 4, the present invention's
In gas valve, valve body 1 includes the valve pocket bottom wall 13 as valve pocket air inlet adjustment structure, and valve pocket bottom wall 13 is provided with valve pocket air inlet
131, so that proper combustion gas after the entrance of total air inlet 14, is entered relatively by the valve pocket air inlet 131 adjusted from valve pocket bottom wall 13
Gas, carry out the combustion gas that timely adjustment enters valve pocket 12.
Preferably, valve pocket bottom wall 13 is integrally formed with valve body 1, is easy to fabricate.
Wherein, the structure of valve chamber air inlet 131 and shape can have diversified forms.As it was previously stated, a kind of preferred real
Apply in mode, the valve chamber air inlet 131 as permanent opening is preferably the rectangular aperture radially extended, to coordinate valve element
Rotation opening, so as to adjust the charge flow rate into valve pocket 12 by the change of the two coinciding openings area.
Wherein, valve chamber air inlet 131 can be the valve chamber air inlet mouth region on through hole or valve pocket bottom wall 13
The densely covered pore in domain.
In another preferred embodiment, valve pocket bottom wall 13, which can be provided with, to be used to covering or opening valve pocket air inlet 131
Gate.Or valve pocket air inlet adjustment structure is for the gate valve mechanism for the bottom opening for covering or opening valve pocket 12.Pass through gate
The aperture of valve chamber air inlet 131 is adjusted, to adjust the charge flow rate into valve pocket 12.
As shown in fig. 6, gas valve includes multiple nozzles 7, valve body 1 is provided with from valve pocket 12 and is respectively communicated to each nozzle 7
Runner, multiple runners are on the internal perisporium of valve pocket 12 formed with corresponding gas port to supply to each nozzle 7.Due to the present invention's
Gas valve is additionally arranged valve pocket air inlet adjustment structure, therefore, can simplify the structure of valve body 1 and valve element 2, no distributed amongst chamber and its
Transition runner etc., combustion gas can be directly assigned to each nozzle of each runner.
It is complicated for gas valve of the prior art on the basis of more than, the narrow bandwidth of the regulation intensity of a fire be present, do not have
Realize in, in, outer ring fire three enclose the intensity of a fire be adjusted in synchronism, so as to be difficult grasp intensity of a fire size, it is necessary to bend over viewing it is desired to adjust
Firepower etc. the problems such as, the invention provides a kind of Novel gas valve.Referring to Fig. 4 to Fig. 7, the gas valve includes valve body 1 with
Empty valve element 2, valve element 2 are pivotally disposed in the valve pocket 12 of valve body 1, and valve pocket 12 includes the valve pocket provided with valve pocket air inlet 131
Bottom wall 13, valve element 2 include the valve element bottom wall 21 provided with valve element air inlet 211, and valve element bottom wall 21 is laminated in the upper of valve pocket bottom wall 13
Side can simultaneously rotate relative to valve pocket bottom wall 13, to pass through the overlapping openings area 3 of valve pocket air inlet 131 and valve element air inlet 211
The change of (referring to Figure 12 a to 12e) and adjust the air inlet of valve pocket 12.
Therefore, in the gas valve of the present invention, rotary spool 2 is passed through so that valve element air inlet 211 and valve pocket air inlet
Air inlet aperture (overlapping openings area 3) adjustment structure of rotatable engagement is formed between 131, to adjust the valve pocket to the gas valve
12 air inlets.
By conventional design, gas valve needs to realize lights a fire to most big fire from charge combustion, is then converted into most small fire again.Cause
This, the requirement adjusted according to air inflow, it is preferable that during integral cycle rotating of the valve element 2 along sparking direction of rotation, valve element air inlet
Overlapping openings area 3 between 211 and valve pocket air inlet 131 is started from scratch gradual increase, is then gradually decrease to zero.Meanwhile
Preferably linearly gradually changed due to overlapping openings area 3 so that user is easier to control the intensity of a fire size of the gas valve.
In order that can be into line along the above-mentioned overlapping openings area 3 during the integral cycle rotating of sparking direction of rotation in valve element 2
Property change (become larger and tapered into again to zero from zero), the structure of corresponding valve element air inlet 211 and valve pocket air inlet 131 and
There should be certain design to coordinate between shape to require, and there can be diversified forms.For example, the valve pocket air inlet 131 to cooperate
A kind of preferred embodiment with valve element air inlet 211 is：Valve pocket air inlet 131 (referring to Fig. 4) is the rectangle radially extended
Opening, valve element air inlet 211 are to include radially spaced inner circle camber line 212 and the fan ring-type of Section of Outer Ring Line 213 is opened (referring to Fig. 2)
Mouthful.
Further, for the rotatable engagement relation between valve pocket air inlet 131 and valve element air inlet 211, valve pocket
The radical length of air inlet 131 is more than the maximum radial length of valve element air inlet 211, when overlapping openings area 3 is more than zero, valve pocket
The radial inside edge of air inlet 131 and inner circle camber line 212 are tangent or radial inside edge are at least partially disposed at inner circle camber line 212
Radially inner side, the radial outside for being at least partially disposed at Section of Outer Ring Line 213 of the radial outside edge of valve pocket air inlet 131.So may be used
It is constant in the holding of the inner circle camber line 212 and valve pocket air inlet 131 of valve element air inlet 211 to cause in the rotary course of valve element 2
In the case of, its overlapping openings area 3 can change according to the change of the radial width of Section of Outer Ring Line 213, to meet the present invention's
The charge flow rate of gas valve realizes linear change.
Certainly, it is corresponding to meet the linearly change (become larger and tapered into again to zero from zero) of overlapping openings area 3
The structure type of valve pocket air inlet 131 and valve element air inlet 211 is not limited to above-mentioned shape, can also be valve pocket air inlet 131 and valve
Core air inlet 211 is the structure of densely covered pore.During Spool rotating, according to the alignment area of the densely covered pore coordinated each other come
Control overlapping openings area 3 linearly changes.In addition, the planform of valve pocket air inlet 131 and valve element air inlet 211 can be with
Exchange, such as, valve element air inlet 211 is the rectangular aperture radially extended, and valve pocket air inlet 131 is opened for fan ring-type substantially
Mouthful.
According to the operating habit of user, generally, 0 ° when valve element 2 rotates is closed position, and 90 ° are most big fire position,
Realize that never combustion gas enters and gradually has combustion gas to enter, arrive the process of maximum combustion gas entrance again between 0 °~90 °, 90 °~
Realized between 180 ° from most big fire to the process of most small fire.Thus, in the gas valve of the present invention, starting gradual change line segment 214
Central angle ranges preferably from 30 °~60 °, to meet the usual operation of user；And the center of circle angular region for drawing close gradual change line segment 215 is excellent
Elect 120 °~180 ° as so that the process from most big fire to most small fire is longer, to increase the bandwidth of intensity of a fire regulation, it is sufficient to meets to use
Family precisely adjusts the requirement of the intensity of a fire so that design is humanized, convenient operation.Required for therefore user can be easily found
Intensity of a fire size, and the intensity of a fire is watched without bending over again, user experience is more preferable.
As shown in Figure 10 and Figure 11, gas valve includes the valve rod 4 for being arranged on the top of valve body 1 and driving valve element 2 to rotate, valve rod
Bottom and valve element 2 top between be provided with elastic pre-press 5, the elastic pre-press is arranged to keep the elasticity pressure of valve element bottom wall 21
Lean against on valve pocket bottom wall 13, so as to avoid forming gap between two bottom walls, cause combustion gas by gap (rather than through lap over
Aperture area 3) entered in the form of gas leakage in valve pocket.
Further, to prevent the obstructed lap over aperture area 3 of the gas leakage of valve pocket air inlet 131 to be directly entered valve pocket,
Circumferential seal circle 6 is provided between the bottom internal perisporium of valve pocket 12 and the bottom periphery wall of valve element 2.
Referring to Fig. 5, valve body 1 is provided with total air inlet 14 and the inlet chamber (not shown) positioned at the lower section of valve pocket bottom wall 13,
Total air inlet 14, inlet chamber and valve pocket air inlet 131 are sequentially communicated.
Similarly, gas valve includes multiple nozzles 7, and valve body 1 is provided with the runner that each nozzle 7 is respectively communicated with from valve pocket 12,
The periphery wall of valve element 2, which is provided with, is respectively communicated with cavity 23 and axially spaced multiple grooves 22, multiple grooves 22 in valve element
Correspond in corresponding gas port of multiple runners on the internal perisporium of valve pocket 12 to supply to each nozzle 7.
Gas valve can be that twin-jet nozzle or three form of nozzle shown in Fig. 6 to Fig. 9, i.e. nozzle 7 include interior ring spray
Mouth 71, middle ring nozzle 72 and outer shroud nozzle 73, groove 22 include inner ring groove 221, middle ring groove 222 and peripheral groove 223, stream
Road includes inner ring runner, middle ring runner and outer shroud runner, the internal perisporium of inner ring runner, middle ring runner and outer shroud runner in valve pocket 12
It is respectively formed with inner ring gas port 161, middle ring gas port 162 and outer shroud gas port 163.When combustion gas is by can be with regulating gas inlet
Rotatable engagement valve pocket air inlet 131 and valve element air inlet 211 enter in valve element after cavity 23, then successively from each groove of valve element 2
22, which flow through each runner, flows to each nozzle 7, to realize that interior, neutralizing outer three ring fire gesture, synchronously change is adjusted so that the knot of the gas valve
Structure is more simple.
Wherein, as shown in figure 14, inner ring groove 221, middle ring groove 222 and peripheral groove 223 are incomplete annular groove, are made
The each groove 22 of on or off and corresponding gas port can be controlled by the rotation of valve element 2 by obtaining, to be reached by the rotation of valve element 2
Cause each runner of on or off.
As shown in figure 15, inner ring gas port, middle ring gas port and outer shroud gas port can be spaced 90 ° successively on the internal perisporium of valve pocket.
Such as Figure 12 a to Figure 12 c and as shown in Figure 13 a to Figure 13 c of its enlarged drawing, usually, along sparking direction of rotation,
Valve element 2 rotates to ignition location (see Figure 12 a and Figure 13 a), most big fire position successively from closed position (see Figure 12 b and Figure 13 b)
Most small fire position (see Figure 12 c and Figure 13 c).Wherein, when rotating from ignition location to most big fire position, overlapping openings area 3
Largest face product value gradually is increased to from zero, inner ring groove 221, middle ring groove 222 and peripheral groove 223 are respectively communicated with inner ring gas port
161st, middle ring gas port 162 and outer shroud gas port 163；When rotating from most big fire position to most small fire position, overlapping openings area 3 is from most
Large area value is gradually decrease to the first setting area value, and inner ring groove 221, middle ring groove 222 and peripheral groove 223 keep difference
Connect inner ring gas port 161, middle ring gas port 162 and outer shroud gas port 163.
Especially, in the gas valve of the present invention, as shown in Figure 12 d and Figure 13 d, between may also include along sparking direction of rotation
Outer shroud after most small fire position is arranged at closes fiery position, overlapping to open when rotating from most small fire position to the fiery position in outer shroud pass
Open area 3 is gradually decrease to the second setting area value from the first setting area value, and inner ring groove 221 and middle ring groove 222 are kept
Inner ring gas port 161 and middle ring gas port 162 are respectively communicated with, peripheral groove 223 staggers with the position of outer shroud gas port 163.
Meanwhile as shown in Figure 12 e and Figure 13 e, especially, it may also include along sparking direction of rotation and be arranged at intervals at outer shroud pass
Rotation extreme position after fiery position, when closing fiery position from outer shroud and rotating to rotation extreme position, overlapping openings area 3 is from the
Two setting area values are gradually decrease to minimal face product value, and inner ring groove 221 keeps connection inner ring gas port 161, and peripheral groove 223 is protected
Hold and stagger with the position of outer shroud gas port 163, middle ring groove 222 staggers with the position of middle ring gas port 162.Now, valve element 2 is rotated to 235 °
Position, outer, the middle equal OFF state of ring fire, when valve element 2 is in rotation extreme position, only interior ring fire is burnt with minimum state.
It is the present invention to be rotated above from most small fire position to the intensity of a fire regulation band that outer shroud closes fiery position and rotates extreme position
The preferred frequency range of gas valve, because the gas valve of the present invention can adjust each ring fire gesture with the small function in Datong District to be a kind of, herein
On the basis of, further make it that the angular range that it is adjusted in synchronism is sufficiently wide, gear is more, design is humanized.
The gas valve of the preferred embodiment of the present invention, it is that one kind has realization from 90 ° to 200 ° with reference to such scheme
It is interior, in, the gas valve of outer three ring fires stepless time adjustment, wherein, 0 ° of position is starting closed position；90 ° for it is interior, in, outer three ring fire
Most big fire position；200 ° for it is interior, in, the most small fire position of outer three ring fire；220 ° are outer ring fire closed position, it is interior, in three rings
Fire is minimum state；235 ° are rotation extreme position, and only interior ring fire is minimum state, and other each ring fires are closed.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
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 equally be considered as content disclosed in this invention.
Claims (15)
1. a kind of gas valve, including valve body (1) and hollow valve core (2), the valve element (2) are pivotally disposed at the valve body
(1) in valve pocket (12), it is characterised in that the valve pocket (12) includes the valve pocket bottom wall (13) provided with valve pocket air inlet (131),
The valve element (2) includes the valve element bottom wall (21) provided with valve element air inlet (211), and the valve element bottom wall (21) is laminated in the valve
The top of bottom of chamber wall (13) can simultaneously rotate relative to the valve pocket bottom wall (13), to pass through the valve pocket air inlet (131) and valve
The change of the overlapping openings area (3) of core air inlet (211) and adjust valve pocket (12) air inlet.
2. gas valve according to claim 1, it is characterised in that in complete cycle of the valve element (2) along sparking direction of rotation
In rotary course, the overlapping openings area (3) between the valve element air inlet (211) and the valve pocket air inlet (131)
Start from scratch gradual increase, be then gradually decrease to zero.
3. gas valve according to claim 1, it is characterised in that the valve pocket air inlet (131) radially extends
Rectangular aperture, the valve element air inlet (211) are the fan ring for including radially spaced inner circle camber line (212) and Section of Outer Ring Line (213)
Shape opening, the inner circle camber line (212) are the concentric circles segmental arc concentric with the valve element (2), and the Section of Outer Ring Line (213) includes
Beginning gradual change line segment (214) and gradual change line segment (215) is drawn close, the starting gradual change line segment (214) is from the valve element air inlet (211)
Circumferential initiating terminal extend radially outwardly, it is described draw close gradual change line segment (215) from it is described starting gradual change line segment (214) end court
Extended radially inwardly to the circumferential ends of the valve element air inlet (211) and radially move closer to the inner circle camber line (212).
4. gas valve according to claim 3, it is characterised in that the starting gradual change line segment (214) is straightway, described
It is segmental arc to draw close gradual change line segment (215).
5. gas valve according to claim 3, it is characterised in that the radical length of the valve pocket air inlet (131) is more than
The maximum radial length of the valve element air inlet (211)；When the overlapping openings area (3) is more than zero, the valve pocket air inlet
(131) radial inside edge and the inner circle camber line (212) be tangent or the radial inside edge be at least partially disposed at it is described
The radially inner side of inner circle camber line (212), the radial outside edge of the valve pocket air inlet (131) are at least partially disposed at the outer shroud
The radial outside of line (213).
6. gas valve according to claim 3, it is characterised in that the center of circle angular region of the starting gradual change line segment (214)
For 30 °~60 °, the center of circle angular region for drawing close gradual change line segment (215) is 120 °~180 °.
7. gas valve according to claim 1, it is characterised in that the gas valve includes being arranged on the valve body (1) top
Portion and the valve rod (4) for driving the valve element (2) to rotate, bullet is provided between the bottom of the valve rod and the top of the valve element (2)
Property pre-press (5), the elastic pre-press are arranged to keep valve element bottom wall (21) elasticity to be pressed against the valve pocket bottom wall (13)
On.
8. gas valve according to claim 1, it is characterised in that the bottom internal perisporium of the valve pocket (12) and the valve element
(2) circumferential seal circle (6) is provided between bottom periphery wall.
9. gas valve according to claim 1, it is characterised in that the valve body (1) is provided with total air inlet (14) and is located at
Inlet chamber below the valve pocket bottom wall (13), total air inlet (14), the inlet chamber and the valve pocket air inlet (131)
It is sequentially communicated.
10. the gas valve according to any one in claim 1~9, it is characterised in that the gas valve includes multiple sprays
Mouth (7), the valve body (1) are provided with the runner that each nozzle (7) is respectively communicated with from the valve pocket (12), the valve element (2)
Periphery wall be provided with and be respectively communicated with cavity in valve element (23) and axially spaced multiple grooves (22), multiple grooves
(22) correspond in corresponding gas port of multiple runners on the internal perisporium of the valve pocket (12) to supply to each described
Nozzle (7).
11. gas valve according to claim 10, it is characterised in that the nozzle (7) includes inner ring nozzle (71), middle ring
Nozzle (72) and outer shroud nozzle (73), the groove (22) include inner ring groove (221), middle ring groove (222) and peripheral groove
(223), the runner includes inner ring runner, middle ring runner and outer shroud runner, the inner ring runner, middle ring runner and outer shroud runner
Inner ring gas port (161), middle ring gas port (162) and outer shroud gas port (163) are respectively formed with the internal perisporium of the valve pocket (12).
12. gas valve according to claim 11, it is characterised in that the inner ring groove (221), middle ring groove (222)
It is incomplete annular groove with peripheral groove (223), enabling control on or off each by the rotation of the valve element (2)
The individual groove (22) and the corresponding gas port.
13. gas valve according to claim 11, it is characterised in that along sparking direction of rotation, the valve element (2) is from closing
Position rotates to ignition location, most big fire position and most small fire position successively；
Wherein, when rotating from the ignition location to the most big fire position, the overlapping openings area (3) gradually increases from zero
To largest face product value, the inner ring groove (221), middle ring groove (222) and peripheral groove (223) are respectively communicated with the inner ring gas
Mouth (161), middle ring gas port (162) and outer shroud gas port (163)；And
When rotating from the most big fire position to the most small fire position, the overlapping openings area (3) is from the maximum area
Value is gradually decrease to the first setting area value, and the inner ring groove (221), middle ring groove (222) and peripheral groove (223) are kept
It is respectively communicated with the inner ring gas port (161), middle ring gas port (162) and outer shroud gas port (163).
14. gas valve according to claim 13, it is characterised in that also include being arranged at intervals along the sparking direction of rotation
Outer shroud after the most small fire position closes fiery position, when rotating from the most small fire position to the fiery position in outer shroud pass,
The overlapping openings area (3) is gradually decrease to the second setting area value, the inner ring groove from the described first setting area value
(221) and middle ring groove (222) keeps being respectively communicated with the inner ring gas port (161) and middle ring gas port (162), the peripheral groove
(223) stagger with outer shroud gas port (163) position.
15. gas valve according to claim 14, it is characterised in that also include being arranged at intervals along the sparking direction of rotation
Rotation extreme position after the outer shroud closes fiery position, close fiery position from the outer shroud and rotate to the rotation extreme position
When, the overlapping openings area (3) is gradually decrease to minimal face product value, the inner ring groove from the described second setting area value
(221) keep connecting the inner ring gas port (161), the peripheral groove (223) keeps wrong with outer shroud gas port (163) position
Open, the middle ring groove (222) is staggered with middle ring gas port (162) position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710894307.4A CN107477215B (en) | 2017-09-28 | 2017-09-28 | Gas valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710894307.4A CN107477215B (en) | 2017-09-28 | 2017-09-28 | Gas valve |
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| Publication Number | Publication Date |
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| CN107477215A true CN107477215A (en) | 2017-12-15 |
| CN107477215B CN107477215B (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710894307.4A Active CN107477215B (en) | 2017-09-28 | 2017-09-28 | Gas valve |
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| Country | Link |
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| CN (1) | CN107477215B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206915A (en) * | 2018-06-20 | 2019-09-06 | 华帝股份有限公司 | Gas valve capable of linearly adjusting firepower and gas stove |
| CN114135688A (en) * | 2021-12-31 | 2022-03-04 | 佛山市顺德区美的洗涤电器制造有限公司 | Plug valve and gas stove |
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| CN207316137U (en) * | 2017-09-28 | 2018-05-04 | 广东美的厨房电器制造有限公司 | Gas valve |
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| CN114135688A (en) * | 2021-12-31 | 2022-03-04 | 佛山市顺德区美的洗涤电器制造有限公司 | Plug valve and gas stove |
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| Publication number | Publication date |
|---|---|
| CN107477215B (en) | 2023-07-28 |
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