CN107951402A - Brokenly bubble steam valve and electric cooker - Google Patents
Brokenly bubble steam valve and electric cooker Download PDFInfo
- Publication number
- CN107951402A CN107951402A CN201610909372.5A CN201610909372A CN107951402A CN 107951402 A CN107951402 A CN 107951402A CN 201610909372 A CN201610909372 A CN 201610909372A CN 107951402 A CN107951402 A CN 107951402A
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- Prior art keywords
- brokenly bubble
- steam valve
- rolling element
- wall
- chamber
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/38—Parts, details or accessories of cooking-vessels for withdrawing or condensing cooking vapors from cooking utensils
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/004—Cooking-vessels with integral electrical heating means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/56—Preventing boiling over, e.g. of milk
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
The invention discloses a kind of brokenly bubble steam valve and electric cooker, brokenly bubble structure is equipped with the steam valve chamber (B) of brokenly bubble steam valve, it includes the brokenly bubble chamber (B1) of rolling element (1) and both ends open, brokenly bubble chamber has air inlet and gas outlet, the bottom wall of brokenly bubble chamber is formed as the roll tilt wall (21) tilted upward, rolling element (1) can scroll up along roll tilt wall under bottom steam promotion or be scrolled down through under self gravitation effect, meet：G is the gravity of rolling element；Pressure differences of the P between the vapor pressure of bottom and the vapor pressure at top of brokenly bubble chamber, and P=50~300pa；S is vapor action in the active area on rolling element, and S=90~180mm2, a is the slanted angle of roll tilt wall with respect to the horizontal plane, and a=5 °~30 °.The brokenly bubble steam valve and electric cooker of the present invention can be effectively improved the control of internal pot minute-pressure, lift de-soak effect and simple in structure, practical, easy to maintain, cleaning.
Description
Technical field
The invention belongs to household appliance technical field, and in particular, to the steam assembled on a kind of electric cooker and the electric cooker
Valve.
Background technology
With the lifting of people's quality of the life, the requirement of higher, business men are proposed to the performance of the household electrical appliance such as electric cooker
Competition it is more fierce, this from the common people not long ago go to Japan it is quick-fried buy in the news such as electric cooker it is visible generally.This demand to electric cooker
Lifting and change be mainly reflected in and do not require nothing more than that quality is really up to the mark, and the rice mouthfeel made will be got well, to meet public demand.
In the production design process of electric cooker, usually internal pot, the design of coating and heating uniformity, computer heating control
Etc. mainly improved, but the design of steam valve is also a critically important ring.In common electric pot, its steam valve is only used
Exhaust and de-soak during cooking, or even many steam valve de-soak effects and unobvious, influencing user makes product
With good opinion, and the adjusting of the internal pot steam pressure of steam valve and control function are also mostly defective, this factor is also largely
On have impact on the final mouthfeel of rice.
In addition, the design structure for the steam valve also having is excessively complicated exquisite, of high cost, maintainable difference, stability is not yet
Height, the slip of bulb-breaking device is uncontrolled, is also not easy to clean.
The content of the invention
For above-mentioned deficiency of the prior art or defect, the present invention proposes a kind of brokenly bubble steam valve, and broken with this
The electric cooker of steam valve is steeped, to be effectively improved the control of internal pot minute-pressure, lifts de-soak effect and simple and compact for structure, realization steaming
Steam valve minimizes, and performance is reliable, practical, easy to maintain, cleaning.
To achieve the above object, the present invention provides a kind of brokenly bubble steam valve, the steam valve intracavitary of the brokenly bubble steam valve to set
There is brokenly bubble structure, the brokenly bubble structure includes rolling element and brokenly bubble chamber, and the brokenly bubble chamber has air inlet and gas outlet, described broken
The bottom wall of bubble chamber is formed as the roll tilt wall tilted upward, and being built in the rolling element in the brokenly bubble chamber can be from institute
Roll tilt wall described in stating the Steam Actuation lower edge of air intake entrance scrolls up or is scrolled down through under self gravitation effect, and
And meet：
Wherein, G is the gravity of the rolling element；P is the vapor pressure of bottom and the steam gas at top of the brokenly bubble chamber
Pressure difference between pressure, and P=50~300pa；S is the vapor action in the active area on the rolling element, and S=90
~180mm2, a is the slanted angle of the roll tilt wall with respect to the horizontal plane, and a=5 °~30 °.
Preferably, the roll tilt wall and the rolling element are respectively provided with smooth surface.
Preferably, the volume ratio of the steam valve chamber and the brokenly bubble chamber is not less than 5.
Preferably, the scope of the pressure difference P is 100pa~200pa.
Preferably, between the rolling element and the brokenly bubble chamber perisporium formed with circular gap, the circular gap it is transversal
Face area S1 is 50~100 square millimeters.
Preferably, the circular gap formed with 0.5~4mm between the rolling element and brokenly bubble chamber perisporium.
Preferably, the rolling element is cylindrical roller, and lateral arrangement of the roller along the roll tilt wall is described
A diameter of D of roller, axial length L, the vapor action is in the active area S=D*L on the rolling element；And
The brokenly bubble chamber has a rectangular cross section, and the width of the rectangular cross section is A1, length A2, the circumferential direction
The cross-sectional area S1=A1*A2-D*L in gap,
Preferably, on the periphery wall of the roller formed with annulus fin, on the roof and bottom wall of the brokenly bubble chamber respectively
Be correspondingly formed with roof guide groove and bottom wall guide groove, the roller along the roll tilt wall roll when, the annulus fin is embedding
Enter in the roof guide groove and bottom wall guide groove and slided with being oriented to；
Wherein, it is each formed with the transverse direction between the top wall surface and wall surface of the outer circumferential surface of the roller and the brokenly bubble chamber
Gap.
Preferably, the both sides of the bottom wall guide groove are respectively formed with projected side wall protruding upward, the periphery of the roller
Wall is supported on two projected side walls, and the height of projection of the annulus fin is less than the depth of the bottom wall guide groove.
Preferably, the circumferential both ends of the roller are extended with guide post, the both sides brokenly bubble chamber side wall point of the brokenly bubble chamber respectively
Not formed with the side wall guide groove parallel with the roll tilt wall, the guide post is stretched into the side wall guide groove with guiding movement institute
State rolling element；
Wherein, the circular gap further includes vertical gap, and the depth of the side wall guide groove is less than the stretching of the guide post
Length so that formed with the vertical gap between the end face of the roller and the brokenly bubble chamber side wall of the brokenly bubble chamber.
Preferably, the brokenly bubble steam valve includes steam valve cap and steam valve seat, the steam valve cap and the steam valve
Seat is interconnected so as to form the steam valve chamber, and the brokenly bubble chamber includes brokenly bubble rail cover and is arranged on the steam valve seat
Brokenly bubble chamber side wall, the brokenly bubble rail cover are removably attachable on the brokenly bubble chamber side wall.
On the basis of the above, present invention also offers a kind of electric cooker, it is provided with the pot lid of the electric cooker above-mentioned broken
Steep steam valve.
In the brokenly bubble steam valve of the present invention, the brokenly bubble structure with brokenly bubble chamber is especially additionally arranged in its cap relief valve intracavitary,
Brokenly bubble is carried out by the way of rolling element is rolled along inclined-plane, and the present invention, can be effective by each state modulator in brokenly bubble structure
Pot minute-pressure changes in adjusting.Known pot inner pressure, roller size, angle of inclination can be calculated when the decision design scope of parameter
Go out required roller weight, easy to selection, and in the range of pot inner pressure, roller size, these three parameters of angle of inclination,
In the case of selecting common roller material, the less rolling element of volume/area can be obtained, the brokenly bubble chamber designed according to rolling element
Volume is also smaller, the steam valve that can be minimized.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
The attached drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its explanation is used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the exploded perspective figure according to the brokenly bubble steam valve of the preferred embodiment of the present invention；
Fig. 2 is the A-A sectional views of brokenly bubble steam valve after assembling shown in Fig. 1；
Fig. 3 is the C-C sectional views of Fig. 2；
Fig. 4 is the force analysis schematic diagram of the brokenly bubble steam valve of the present invention；
Fig. 5 be Fig. 1 shown in brokenly bubble steam valve steam valve seat stereogram, wherein for clearly show that side wall guide groove and to
Upper limit muscle etc. and eliminate rolling element etc.；
Fig. 6 is steam valve base and rolling element and the explosive view of brokenly bubble rail cover in one embodiment；
Fig. 7 is the A-A sectional views of brokenly bubble steam valve after assembling in one embodiment；It is additionally arranged compared to Fig. 2
Spacing gusset；
Fig. 8 is the C '-C ' sectional views of Fig. 7；
Fig. 9 is the A-A sectional views of brokenly bubble steam valve after assembling in one embodiment, aobvious compared to Fig. 2 increases
The diameter D of the minimum spacing H and rolling element between catch and brokenly bubble chamber roof (i.e. brokenly bubble rail cover) are shown；
Figure 10 is the E-E sectional views of brokenly bubble steam valve after assembling shown in Fig. 1；
Figure 11 is sectional view of the brokenly bubble steam valve along the line A-A of Fig. 1, similar with Fig. 9, unlike, catch is from brokenly bubble chamber
The top of roof extends downwardly；
Figure 12 be Figure 11 shown in brokenly bubble steam valve after assembling along Fig. 1 E-E lines sectional view；
Figure 13 is sectional view of the brokenly bubble steam valve along the line A-A of Fig. 1, similar with Fig. 9, unlike, catch is from brokenly bubble chamber
The top of side wall crosses out；
Figure 14 be Figure 13 shown in brokenly bubble steam valve after assembling along Fig. 1 E-E lines sectional view；
Figure 15 is the stereogram of the rolling element in the brokenly bubble steam valve shown in Fig. 1, which has guide post；
Figure 16 is the front view of the rolling element of another preferred constructive form, which has circular fin but no guide post；
Figure 17 is the shaft section schematic diagram of the rolling element shown in Figure 16；
Figure 18 is an end view of the rolling element shown in Figure 16；And
Figure 19 is another end view of the rolling element shown in Figure 16.
Description of reference numerals：
100 steam valve seat, 200 steam valve cap
300 sealing ring, 101 steam inlet
103 madial wall of bottom wall of 102 steam valve seats
201 steam (vapor) outlets
221 side wall guide groove, 222 upward limit rib
223 spacing gussets 224 install inclined-plane
1 rolling element, 2 brokenly bubble chamber perisporium
3 roll 4 catch of gear structure
11 inner nuclear layer, 12 surrounding layer
13 guide post, 14 annulus fin
15 circumferential 21 roll tilt walls of clamping notch
22 brokenly bubble chamber side wall, 23 brokenly bubble rail cover
A1 width A2 length
B steam valve chamber B1 brokenly bubble chambers
D diameter H minimum spacings
Component is pushed away under F1 steam lifting force F2 gravity
G gravity L axial lengths
J1 lateral clearance J2 vertical gaps
A slanted angle f frictional force
Embodiment
The embodiment of the present invention is described in detail below in conjunction with attached 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.
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Below with reference to the accompanying drawings and the present invention will be described in detail in conjunction with the embodiments.
In the present invention, in the case where not making conversely 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 component mutual alignment relation on vertical, vertical or gravity direction
Word is described.The noun of locality such as " inside and outside " is referred to inside and outside chamber." laterally, longitudinal direction " is commonly referred to as the transverse direction of roll tilt wall
And longitudinal direction, the longitudinal direction of roll tilt wall is i.e. diagonally downward or upward incline direction.
The present invention provides a kind of brokenly bubble steam valve, and as shown in Fig. 1 to Figure 14, the steam valve chamber B of the brokenly bubble steam valve is set
There are steam (vapor) outlet 201 and steam inlet 101, especially have additional brokenly bubble structure in the steam valve chamber B of brokenly bubble steam valve, the brokenly bubble knot
Structure includes the brokenly bubble chamber B1 of rolling element 1 and both ends open, bottom end opening (i.e. air inlet) the connection steam inlet of brokenly bubble chamber B1
101, top end opening (i.e. gas outlet) connection steam valve chamber B, the bottom wall of brokenly bubble chamber B1 is formed as the roll tilt wall tilted upward
21, being built in the rolling element 1 in brokenly bubble chamber B1 can be under the Steam Actuation entered from steam inlet 101 along roll tilt wall 21
Scroll up or scrolled down through under self gravitation effect, i.e., rolling element 1 can be slided up and down along roll tilt wall 21 is reciprocal.
, can be inside steam valve since moisture largely evaporates in the cooking process of the culinary art household electrical appliances such as electric cooker, electric pressure cooking saucepan
Substantial amounts of bubble is formed, so as to influence the mouthfeel of food.Enter steam valve when the steam in interior pot (or liner) carries soup
When, internal brokenly bubble structure, so as to promote the separation of steam and soup, can be kept away by the mode such as rotating, vibrating by bubble breaking
Exempt from the culinary art household electrical appliances such as soup spill electric cooker in interior pot.
As shown in Figure 1 and Figure 2, when electric cooker works, the steam of interior pot and big another typical material enter from steam inlet 101
When brokenly bubble steam valve, interior pot steam pressure are larger, rolling element 1 can be pushed to the top of brokenly bubble chamber B1.At this time, steam and bulla
Foam is entered by the circular gap (the lateral clearance J1 and vertical gap J2 for including Fig. 3) between rolling element 1 and brokenly bubble chamber perisporium 2
In steam valve chamber B, finally outwards escaped via the steam (vapor) outlet 201 on steam valve cap 200.In the process through circular gap
In, there are a constant pressure drop for vapor pressure so that interior pan gas pressure is slightly higher compared to external pressure, i.e., there are minute-pressure, is conducive to boiling
Rice.Meanwhile macrofoam at least splits into numerous another typical materials through circular gap, another typical material is larger in volume and pressure reduces
Steam valve chamber B in rupture, formed ponding flow back from the bottom wall 102 of steam valve seat, formed between rolling element and brokenly bubble chamber perisporium
Circular gap contribute to brokenly bubble, the steam pressure that more can effectively control interior pot is designed in gap so that interior pot is maintained at minute-pressure shape
State, the mouthfeel for the rice made is more preferably.And in digestion process, as firepower control and moisture gradually decrease, interior pot steam
Pressure is simultaneously unstable, and rolling element 1 also will be along 21 slide downward of roll tilt wall, during rolling element 1 up and down reciprocatingly rolls
Macrofoam is constantly extruded, the ponding formed directly flows back along roll tilt wall 21.Wherein, steam path is shown in each sectional view
From steam inlet 101 to the curve of steam (vapor) outlet 201.
Referring to the force analysis of Fig. 4, the gravity of rolling element 1 is G, and gravity G straight down, press from both sides by the inclination of roll tilt wall 21
Angle is a, it is known that：Component F2=G*Sin (a) is pushed away under gravity, according to the stress balance along inclined plane, derives steam lifting force
F1=F2+f, wherein f are the frictional force of inclined plane.When vapor action in the active area on rolling element 1 is S, roll tilt wall
21 and rolling element 1 be respectively provided with smooth surface so that when frictional force f is negligible, can derive the steam of the bottom of brokenly bubble chamber B1
Pressure difference P between air pressure and the vapor pressure at top should meet：
In other words, when the pressure difference P of only rolling element chamber pressure of both sides about 1 is sufficiently large, i.e. the interior pot of electric cooker
Vapor pressure, there are under certain minute-pressure state, can push up rolling element 1 relative to extraneous standard pressure, to keep preferable
Effect of breaking bubble.
In the embodiment shown in Fig. 3, rolling element 1 is the roller of cylinder, and the roller is along roll tilt wall 21
Lateral arrangement, a diameter of D of roller, axial length L, then vapor action is in the active area S=D*L on rolling element 1；And
And
Brokenly bubble chamber B1 has a rectangular cross section, and the width of the rectangular cross section is A1, length A2, then circular gap
Cross-sectional area S1=A1*A2-D*L.
Certainly it is only for example herein, i.e., brokenly bubble chamber is not limited to rectangle chamber, and rolling element 1 is also not necessarily limited to roller, other
Under shape, the calculation formula of active area S also can be equally obtained.
By above force analysis and calculate, the size of P depends on the gravity of rolling element 1, forced area, tilts folder
The multiple parameters such as angle a.Meanwhile the size of P is also limited by brokenly bubble chamber size size.In other words, by selecting to control above-mentioned parameter,
Interior pot steam pressure is then adjustably controlled, to obtain the steam pressure of optimum boiling meal.
Similarly, to realize the miniaturization of brokenly bubble steam valve, the gravity G of the rolling element 1 meets：
Wherein, pressure differences of the P between the vapor pressure of bottom and the vapor pressure at top of brokenly bubble chamber B1, and value model
Enclose preferably 50~300pa；S is the vapor action in the active area on the rolling element 1, and value range is preferably 90
~180mm2, a is the slanted angle of the roll tilt wall 21 with respect to the horizontal plane, and value range is preferably 5 °~30 °.
In this way, providing the decision design scope of the parameters such as pressure difference P (i.e. pot inner pressure), roller size, angle of inclination a
When, required roller weight can be calculated, in order to selection, realizes compact-sized, miniaturization and applicable brokenly bubble steam valve.
Drawn according to continuous experimental summary, when pressure difference P is preferably 50pa~300pa, can realize in pot and exist
Micro-pressure, rolling element 1 can move up and realize effect of breaking bubble at this pressure again, while thin rice gruel easily reflux again.
In a particular embodiment, it is highly preferred that the scope of P is 100pa~200pa.If pressure difference P=100Pa, track incline
Oblique a=18 ° of angle, S=120mm2, then can calculate gravity G ≈ 3.96g, the round numbers 4g of roller, by density formula ρ=
M/V=9.8N/kg, can calculate the density of roller, and then consider selection.
In addition, brokenly bubble chamber is relatively small so that when circular gap is sufficiently small, can lift internal pressure, steam valve chamber B should be compared to
Brokenly bubble chamber B1 is sufficiently large, is conducive to maintain the pressure drop of circular gap, and another typical material of being more convenient for all ruptures wherein.As an example,
In the illustrated embodiment, the volume ratio of steam valve chamber B and brokenly bubble chamber B1 is preferably not less than 5, is also not necessarily limited to this certainly.
When vapor action is when the active area S on rolling element 1 is preferably 90~180 square millimeters, the gravity of rolling element 1
G is preferably 2~8 grams.Further, the cross-sectional area S1 of circular gap is preferably 50~100 square millimeters.For example,
If the diameter D=12mm of roller, axial length L=10mm, gravity G=4g, during a=18 ° of slanted angle, then P=F1/S ≈
100.9455pa.At this time, according to above-mentioned rational parameter area, it can meet differential pressure requirements and realize brokenly bubble steam valve
Miniaturization, effectively destroys macrofoam and contributes to thin rice gruel to flow back.
To realize above-mentioned circular gap, referring to Fig. 3, can also be formed on the periphery wall of roller (its stereogram is referring to Fig. 6)
There is annulus fin 14, respectively led on the roof and bottom wall of brokenly bubble chamber B1 formed with the roof guide groove shown in Fig. 3 and bottom wall
Groove, roller along roll tilt wall 21 roll when, annulus fin 14 is embedded in roof guide groove and bottom wall guide groove to be oriented to slip；Its
In, lateral clearance J1 is each formed between the outer circumferential surface of roller and the top wall surface and wall surface of brokenly bubble chamber B1, so that relative to rolling
The whole periphery wall of column reduces frictional force with that for the wall surface Full connected of brokenly bubble chamber B1, can reduce friction area.
For formed lateral clearance J1, naturally be contemplated that by the height of projection of annulus fin 14 be set greater than roof guide groove or
The depth of bottom wall guide groove, so as to form lateral clearance J1.But only pass through annulus fin 14 between roller and brokenly bubble bottom of chamber wall at this time
During contact, easily operation is unstable.In order to further increase stationarity during roller operation, as shown in figure 3, the both sides of bottom wall guide groove
Projected side wall protruding upward is respectively formed with, the periphery wall of roller is supported in two side walls protrusion, so as to lift roller
Stationarity during operation.After two side walls protrusion is set, the height of projection of annulus fin 14 further can be also made to be less than bottom
The depth of wall guide groove, that is, avoid annulus fin 14 from contacting the bottom surface of bottom wall guide groove, further reduce contact area.
Referring also to Fig. 8 and Figure 15, the circumferential both ends of roller can also be extended with guide post 13 respectively, and the both sides of brokenly bubble chamber B1 are broken
Bubble chamber side wall 22 is respectively formed with the side wall guide groove 221 parallel with roll tilt wall 21, and referring to Fig. 5, Fig. 6, guide post 13 stretches into side
With guiding movement rolling element 1 in wall guide groove 221；Wherein, circular gap further includes vertical gap J2, the depth of side wall guide groove 221
Less than the extension elongation of guide post 13 so that formed with vertical gap between the end face of roller and the brokenly bubble chamber side wall 22 of brokenly bubble chamber B1
J2.Above-mentioned annulus fin 14 and guide post 13 and its corresponding guide groove design not only contribute to the up and down reciprocatingly slip of rolling element 1,
Reduce power-assisted and be oriented to accurately, moreover it is possible to rolling element 1 is followed same track all the time mobile and not skewed so that the size of circular gap
Remain stable, the pressure difference P's of above-mentioned derivation is with a high credibility.
Since rolling element 1 is extended with guide post 13, while brokenly bubble chamber side wall 22 is formed with the side parallel with roll tilt wall 21
Wall guide groove 221, so can guiding movement rolling element 1, the cooperation for passing through guide post and guide groove improves the operation stability of rolling element 1.
Specifically, the width of side wall guide groove 221 should be greater than the diameter of guide post 13 so that guide post 13 and side wall guide groove 221 it
Between form clearance fit.Preferably, the depth of side wall guide groove 221 also should be less than the extension elongation of guide post 13 so that rolling element 1 with
Formed with gap between brokenly bubble chamber side wall 22.In this way, pass through the clearance fit between guide post, guide groove, and rolling element and side wall
Between clearance fit, do not influence the reciprocating movement of rolling element.
In Fig. 5, Fig. 6, side wall guide groove 221 is recessed inwardly to be formed from 22 surface of brokenly bubble chamber side wall.But selectively, also may be used
Make that brokenly bubble chamber side wall 22 is protruding with parallel interval and the guide groove top plate dip-parallel with roll tilt wall 21 and guide groove bottom plate (are not shown
Show), side wall guide groove 221 is formed between guide groove top plate and guide groove bottom plate.In Fig. 5, Fig. 6, side wall guide groove 221 preferably not to
Under extend to the bottom end opening of brokenly bubble chamber B1, i.e., with base end wall, which is formed to guide post 13 to lower limit, with Fig. 2,
The function of rolling gear structure 3 of being extended downwardly and inwardly and formed by steam valve madial wall 103 of the displays such as Fig. 7, Fig. 9 is similar,
By the body to rolling element 1 or guide post 13 to lower limit, it can stop that rolling element 1 skids off the bottom end opening of brokenly bubble chamber B1.
Guide post 13 to upper limit similarly, will also address below.But side wall is formed with guide groove bottom plate by the guide groove top plate of protrusion and is led
During groove 221, then need especially to add the position limiting structure of guide post 13 at guide groove both ends.
In the embodiment that all attached drawings are shown, rolling element 1 is both preferably the roller of cylinder, but rolling element 1 also may be used
Be others such as the ball of spheroidal.During as ball, guide post 13 can extending radially out along ball.During as roller,
Two cylindrical guide posts 13 can stretch out respectively along the axle center both ends of roller, and be respectively protruding into the brokenly bubble chamber side of brokenly bubble chamber B1 both sides
In the side wall guide groove 221 of wall 22.
In addition, the corresponding axial end face stretching towards roller is respectively formed with the brokenly bubble chamber side wall 22 of brokenly bubble chamber B1 both sides
Spacing gusset 223, as shown in Figure 7, Figure 8.When the width of side wall guide groove 221 is larger and the diameter of roller 13 is relatively small,
Rolling element 1 easily produces deflection, and spacing gusset 223 carries out the both ends axial end face of rolling element body spacing respectively at this time, can
Effectively limit inclination and offset degree of the rolling element 1 relative to its center axis.Specific in present embodiment, rolling element 1 and brokenly bubble
The gap of 1mm~4mm is formed between chamber side wall 22, at this time the spacing of spacing gusset 223 and rolling element 1 be preferably 0.5mm~
1mm.When the gap between rolling element 1 and brokenly bubble chamber side wall 22 is larger, setting can with the spacing gusset 223 of roller spacing smaller
Effectively to prevent roller in rolling process since unbalance stress deviates from groove there is a phenomenon where sideslip.In addition such as Fig. 7, Fig. 8
Shown, spacing gusset 223 is preferably located on the brokenly bubble chamber side wall 22 substantially fair with the highest face of roller height, so as to protect
Card roller in the case of sideslip, less can not rub, with blocking-proof rolling element in 1 motion process of rolling element with rolling element
1 movement.
Similar with to lower limit to realize to guide post 13 to upper limit, the top of side wall guide groove 221 is formed with to the upper limit
Position muscle 222, as shown in Figure 5.Side wall guide groove 221 can as shown in Figure 6, Figure 7, and the top for not extending upwardly to brokenly bubble chamber B1 is opened
Mouthful, i.e., it is used for top end wall, the top end wall to upper limit, the top end wall is as upward limit rib 222.
But different in Figure 5, side wall guide groove 221 extends upwardly to the top end opening through brokenly bubble chamber B1, with
It is embedded in easy to rolling element 1 from top end opening in brokenly bubble chamber B1 downwards, with ease of assembly.Therefore in Figure 5, upward limit rib 222
It is protrusively formed in the top groove of side wall guide groove 221.At this time, usual brokenly bubble chamber side wall has plastic material to be made, in external force
It can be deformed upon under effect, guide post 13 can cross upward limit rib 222 to slip into side wall guide groove 221 by extruding when mounted.
Referring to Fig. 5, the front end face towards steam valve chamber B of upward limit rib 222 is also preferably formed with installation inclined-plane
224, which tilts from the top end opening of brokenly bubble chamber B1 towards bottom end opening so that rolling element 1 is from brokenly bubble chamber B1's
When top end opening insertion is installed on brokenly bubble chamber B1, guide post 13 can be slided along installation inclined-plane 224 downward across upward limit rib 222
Enter in side wall guide groove 221.The setting on installation inclined-plane 224 has further facilitated guide post 13 and has been embedded in side wall guide groove 221.
In addition, the roof of brokenly bubble chamber B1 can be fixed covering plate, but brokenly bubble rail cover 23 is may also preferably be, the brokenly bubble rail
Drive cap 23 is removably attachable to the madial wall 103 of brokenly bubble steam valve, such as can pivot by respective known pivot structure progress
Turn installation, it is not described in detail herein.Brokenly bubble rail cover 23 it is pivotally-mounted, facilitate clear after the assembling and use of rolling element 1
It is clean.Specifically, can also be set on the brokenly bubble chamber side wall 22 of brokenly bubble chamber B1 downward from side wall guide groove 221 towards brokenly bubble rail cover 23
The guide post mounting groove (not shown) of extension.When rolling element 1 assembles, brokenly bubble rail cover 23, the guide post at 1 both ends of rolling element are pivotally opened
13 alignment guide post mounting grooves, then press down on, guide post 13 can slip into side wall guide groove 221 along guide post mounting groove.Similarly,
Rolling element 1 can reversely be taken out after use, brokenly bubble chamber B1 is cleaned.
Above describe to the upper and lower spacing of guide post 13.Similarly, rolling element body should also be carried out it is rational spacing up and down,
Especially when without guide post 13 or guide post 13 produce damage when, by rolling element body it is rational up and down it is spacing,
Double shield can be provided, the use reliability of steam valve is improved, avoid rolling element from skidding off.
During to rolling element body to lower limit, shown in each embodiment shown in Fig. 2, Fig. 7, Fig. 9, Figure 11, Figure 13
The bottom end opening of brokenly bubble chamber B1 is stretched into by steam valve madial wall 103 and is formed rolling gear structure 3, passes through the rolling gear
Structure 3, can effectively stop that rolling element 1 skids off the bottom end opening of brokenly bubble chamber B1, while does not influence steam and enter brokenly bubble chamber B1.
Fig. 9 to Figure 14 illustrates the catch 4 and its mounting structure of three kinds of forms, to realize to rolling element body to the upper limit
Position.Catch 4 therein is arranged in steam valve chamber B, and the top end opening close to brokenly bubble chamber B1 is set, to stop that rolling element 1 is upward
Skid off brokenly bubble chamber B1.
In the first of Fig. 9 and Figure 10 embodiment, catch 4 is preferably directly from bottom wall (the i.e. steam of steam valve chamber B
The bottom wall 102 of valve seat) to stretch out upwards, this structure makes steam from the gap between the roof of the top of catch 4 and brokenly bubble chamber B1
Flow up, flowed easy to the steam (vapor) outlet 201 of steam upward.
Wherein, catch 4 can be variously-shaped elongated rib strip shaped or along the width of roll tilt wall 21
The tablet of arrangement.When certainly, using elongated rib strip shaped, the reflux of the hydrops such as thin rice gruel being more advantageous on the bottom wall 102 of steam valve seat.
And use writing board shape, then it can more reliably stop that rolling element body skids off.
No matter rolling element 1 is the roller of cylinder or the ball of spheroidal, between the top of catch 4 and brokenly bubble rail cover 23
Minimum spacing H should be less than the diameter D of rolling element 1.In other words, catch 4 should have certain altitude and with brokenly bubble rail cover 23
Spacing cannot be excessive so that rolling element 1 cannot skid off above catch 4, ensure that the sliding rail of rolling element 1 is normal, will not take off
Leave the right or normal track, as shown in Figure 9.
As it was previously stated, but the bottom of brokenly bubble rail cover 23 be removably connected pivotally to the madial wall of brokenly bubble steam valve
103 or the side wall of brokenly bubble chamber is removably attachable to, when cleaning after assembling or use, is both needed to pull upwards and open brokenly bubble rail
Drive cap 23.It is inserted into for this reason, the size of the minimum spacing H between the top of catch 4 and brokenly bubble rail cover 23 should be suitable for finger, i.e., most
Small spacing H should be greater than finger thickness.In the present embodiment, minimum spacing H is not less than 8mm, that is, is more than the finger of the overwhelming majority
Finger tip thickness so that finger fingertip can be embedded in the gap of minimum spacing H, to move upwards and open brokenly bubble chamber perisporium 2
Roof (i.e. brokenly bubble rail cover 23).If the bottom pivotable connection of brokenly bubble rail cover 23 is in the madial wall 103 of brokenly bubble steam valve.
Certainly, the minimum spacing H between catch 4 and the brokenly bubble chamber side wall 22 of brokenly bubble chamber B1 also should be less than the straight of rolling element 1
Footpath D, so that rolling element can not be skidded off from the both lateral sides of catch 4.In other words, if catch 4 is the tablet extended laterally
When, need to limit catch 4 has one fixed width., being arranged laterally at a spacing along roll tilt wall 21 if catch 4 is elongated rib
It is multiple.
In addition, Fig. 9, the brokenly bubble steam valve shown in 10 include steam valve cap 200 and steam valve seat 100, the steaming mutually fastened
Steam valve chamber B is formed between steam valve lid 200 and steam valve seat 100, steam (vapor) outlet 201 is formed on steam valve cap 200, and steam enters
Mouth 101 is formed on the bottom wall 102 of steam valve seat.Fastening between increase steam valve cap 200 and steam valve seat 100 is close
Degree, prevents steam from being escaped from the jointing edge of the two, sealing ring 300 is additionally provided between steam valve cap 200 and steam valve seat 100.
At this time, when catch 4 directly stretches out upwards from the bottom wall 102 of steam valve seat, the preferably bottom wall 102 with steam valve seat of catch 4
It is integrally formed, makes manufacture more convenient.Certainly, the connection structure of catch 4 is also not necessarily limited to the integrated formed structures such as casting, can also
It is the other manners such as ultrasonic wave fusion weld.
When brokenly bubble steam valve is fastened by steam valve cap 200 and steam valve seat 100 to be formed, the bottom of brokenly bubble rail cover 23 is excellent
Elect pivotable connection as, and roll tilt wall 21 is preferably that the bottom wall of steam valve chamber B tilts down part, roll tilt wall
21 extend to steam inlet 101, the hydrops of the bottom wall of steam valve chamber B (including condensed water and foam burst thin rice gruel to be formed etc.)
Can swimmingly it be flowed out in time downwards from steam inlet 101 via roll tilt wall 21.
In addition, at the top end opening of brokenly bubble chamber B1, catch 4 can be also stretched out from brokenly bubble chamber perisporium 2 to stop that rolling element 1 is slided
Go out brokenly bubble chamber B1.In this way, 4 form of catch that the bottom wall 102 of the slave steam valve seat compared to Fig. 9 stretches out upwards, is more advantageous to steaming
The hydrops reflux on 102 surface of bottom wall of steam valve seat.
Likewise, catch 4 can be elongated rib as described above or be arranged along the width of roll tilt wall 21
Tablet.
In second of embodiment of Figure 11 and Figure 12, catch 4 inclines from the top of the roof of brokenly bubble chamber B1 towards rolling
Skew wall 21 extends downwardly.So catch 4 has spacing, such catch will not hamper in suspension shape between catch and brokenly bubble bottom of chamber wall
Thin rice gruel is hindered to flow back from the bottom wall of brokenly bubble chamber.
Likewise, effectively to stop that rolling element body skids off brokenly bubble chamber B1 upwards, no matter rolling element 1 is cylindrical roller
Or the ball of spheroidal, the minimum spacing H between the bottom of catch 4 and roll tilt wall 21 should be less than the diameter of rolling element 1
D, such rolling element 1 cannot will be skidded off substantially from the lower section of catch 4.
It is identical with the embodiment shown in Fig. 9, Figure 10, the brokenly bubble chamber side wall of the catch 4 and brokenly bubble chamber B1 in Figure 11, Figure 12
Minimum spacing H between 22 also should be less than the diameter D of rolling element 1.The width of catch 4 is limited, so that rolling element body
It cannot be skidded off from the side of catch 4.
In the third of Figure 13 and Figure 14 embodiment, catch 4 is crossed out from the brokenly bubble chamber side wall 22 of brokenly bubble chamber B1.
In Figure 13, Tu14Zhong, the catch 4 crossed out from brokenly bubble chamber side wall 22 is preferably also in suspension shape, this catch
Equally thin rice gruel will not be hindered to flow back from the bottom wall of brokenly bubble chamber.
Catch 4 in figure is preferably in T shape, it may include longitudinal extension part and lateral extensions, longitudinal extension part is from broken
The top of bubble chamber side wall 22 extends forward, and lateral extensions laterally inwardly extend from the end of longitudinal extension part.
It is further to note that catch 4 is mainly used for upper limit rolling element 1, under repeated stock, to avoid damaging
The contact portion of wound, catch 4 and rolling element 1 preferably has buffering, preferably elastic buffer, such as the periphery of rolling element 1
Portion is formed with flexible material layer, and to mitigate the impact power to catch 4, or the shock surface of catch 4 has elastic layer etc..
No matter rolling element 1 is the roller of cylinder or the ball of spheroidal, or other any suitable rolling member shapes
When, rolling element 1 is preferably including the relatively small surrounding layer 12 of the relatively large inner nuclear layer 11 of quality and quality, surrounding layer 12
Flexible material layer, referring to Figure 15 to Figure 19.In this way, 11 mass of inner nuclear layer is big, easy to roll brokenly bubble, surrounding layer 12 is flexible material
Material, can reduce noise caused by rolling, mitigate impact power when rolling element 1 rolls, and equally also slow down itself abrasion.
Inner nuclear layer 11 is preferably the hard materials such as metal.Not only quality is big for metallic hard material, more wins, volume big in density
It is small, needed suitable for the miniaturization of brokenly bubble steam valve.Such as in the embodiments of the present invention, inner nuclear layer 11 is not preferably by
Stainless steel, stainless iron or aluminum of the food-grade easily got rusty etc..
Surrounding layer 12 is preferably for easily attachment and molding glue-line, such as layer of silica gel, rubber layer or other elastic materials
Layer, the attachment degree of ectonexine is high, is not easy mutually to peel off.
During using layer of silica gel or rubber layer, surrounding layer 12 can be formed at kernel by modes such as injection molding or compression moldings
On the outer surface of layer 11.Rolling element 1 in Figure 15 to Figure 19 is the roller of cylinder, by taking roller as an example, to complete to be molded into
Type or compression molding then make surrounding layer 12, it is necessary to carry out effective clamping to inner nuclear layer 11.
It is common to have such as scroll chuck for the clamping of cylinder.At this time, as shown in Figure 15, Figure 19, the end shape of roller
Into there is the circumferential clamping notch 15 of circumferentially spaced three, it is simultaneously outwards sudden and violent that three circumferential clamping notches 15 penetrate through surrounding layer 12
Reveal inner nuclear layer 11.The side face of clamping face from the rolling element 1 of wherein each claw extends to end face.
In addition, routinely can also use centering mode clamping roller, so then the axle center both ends of roller be respectively formed with to
A few axial clamping notch, axial clamping notch penetrate through surrounding layer 12 and outwards expose inner nuclear layer 11.
The axle center both ends of roller shown in Figure 15 are extended with guide post 13 respectively, and the roller shown in Figure 16 to Figure 19 is not led
Column 13, but there is annulus fin 14.
But when being extended with guide post 13, the brokenly bubble chamber side wall 22 of brokenly bubble chamber B1 is formed with the side wall parallel with roll tilt wall 21
Guide groove 221, to reduce the abrasion of guide post and guide groove, guide post 13 is preferably integrally formed with surrounding layer 12, i.e., guide post 13 is also complete
Using flexible material.
Annulus can be covered by surrounding layer 12 formed with annulus fin 14 as on the outer circumferential surface of the inner nuclear layer 11 of cylinder
Fin 14, the same friction for reducing annulus fin 14.Certainly, annulus fin 14 also can be similar to guide post 13, with the one of surrounding layer 12
Shaping, referring to Figure 17.
In addition, when the bottom end opening of brokenly bubble chamber B1 is equipped with rolling gear structure 3 as described above, rolling element 1 inclines along rolling
During 21 reciprocating rolling of skew wall, rolling element 1 rolls gear structure 3 by 12 contact-impact of surrounding layer.The setting of surrounding layer 12 can phase
When slow down in degree rolling member 1 to roll gear structure 3 repeated stock.Certainly, 3 surface of rolling gear structure may also set up slow
Rush layer.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
For god with principle, any modification, equivalent replacement, improvement and so on, such as guide post 13 also can be from the only one ends of rolling element 1
Face is stretched out, and guide post 13 is also not necessarily limited to use flexible material completely, can have an inner prop of metal inner core and extexine coats
Flexible material outer layer, the bottom end opening of steam inlet 101 and brokenly bubble chamber B1 can be combined into one etc., and such change should all wrap
It is contained within 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, 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 (12)
1. a kind of brokenly bubble steam valve, the steam valve chamber (B) of the brokenly bubble steam valve is interior to be equipped with brokenly bubble structure, and the brokenly bubble structure includes
Rolling element (1) and brokenly bubble chamber (B1), the brokenly bubble chamber have air inlet and gas outlet, and the bottom wall of the brokenly bubble chamber (B1) is formed as
The roll tilt wall (21) tilted upward, be built in the rolling element (1) in the brokenly bubble chamber (B1) can from it is described into
Roll tilt wall (21) described in the Steam Actuation lower edge that steam ports enters scrolls up or is scrolled down through under self gravitation effect, and
And meet：
<mrow>
<mi>G</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mi>P</mi>
<mo>*</mo>
<mi>S</mi>
</mrow>
<mrow>
<mi>S</mi>
<mi>i</mi>
<mi>n</mi>
<mrow>
<mo>(</mo>
<mi>a</mi>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
</mrow>
Wherein, G is the gravity of the rolling element (1)；P is the vapor pressure of bottom and the steam at top of the brokenly bubble chamber (B1)
Pressure difference between air pressure, and P=50~300pa；S for the vapor action in the active area on the rolling element (1), and
S=90~180mm2, a is the slanted angle of the roll tilt wall (21) with respect to the horizontal plane, and a=5 °~30 °.
2. brokenly bubble steam valve according to claim 1, wherein, the scope of the pressure difference P is 100pa~200pa.
3. brokenly bubble steam valve according to claim 1, wherein, the roll tilt wall (21) and the rolling element (1) are equal
With smooth surface.
4. brokenly bubble steam valve according to claim 1, wherein, the body of the steam valve chamber (B) and the brokenly bubble chamber (B1)
Product is than being not less than 5.
5. the brokenly bubble steam valve according to any one in Claims 1 to 4, wherein, the rolling element (1) and brokenly bubble chamber week
Formed with circular gap between wall (2), the cross-sectional area S1 of the circular gap is 50~100 square millimeters.
6. the brokenly bubble steam valve according to any one in Claims 1 to 4, wherein, the rolling element (1) and brokenly bubble chamber week
Circular gap formed with 0.5~4mm between wall (2).
7. brokenly bubble steam valve according to claim 5, wherein, the rolling element (1) is the roller of cylinder, the roller edge
The lateral arrangement of the roll tilt wall (21), a diameter of D of the roller, axial length L, the vapor action is in described
Active area S=D*L on rolling element (1)；And
The brokenly bubble chamber (B1) has a rectangular cross section, and the width of the rectangular cross section is A1, length A2, the circumferential direction
The cross-sectional area S1=A1*A2-D*L in gap.
8. brokenly bubble steam valve according to claim 7, wherein, formed with annulus fin on the periphery wall of the roller
(14), respectively formed with roof guide groove and bottom wall guide groove, the roller on the roof and bottom wall of the brokenly bubble chamber (B1)
When being rolled along the roll tilt wall (21), with guiding in the embedded roof guide groove of the annulus fin (14) and bottom wall guide groove
Slide；
Wherein, it is each formed with lateral clearance between the top wall surface and wall surface of the outer circumferential surface of the roller and the brokenly bubble chamber (B1)
(J1)。
9. brokenly bubble steam valve according to claim 8, wherein, the both sides of the bottom wall guide groove are respectively formed with protruding upward
Projected side wall, the periphery wall of the roller is supported on two projected side walls, and the annulus fin (14) is convex
Play the depth that height is less than the bottom wall guide groove.
10. brokenly bubble steam valve according to claim 8, wherein, the circumferential both ends of the rolling element are extended with guide post respectively
(13), the both sides brokenly bubble chamber side wall (22) of the brokenly bubble chamber (B1) is respectively formed with the side parallel with the roll tilt wall (21)
Wall guide groove (221), the guide post (13) are stretched into the side wall guide groove (221) with rolling element described in guiding movement (1)；
Wherein, the circular gap further includes vertical gap (J2), and the depth of the side wall guide groove (221) is less than the guide post
(13) extension elongation so that formed between the end face of the roller and the brokenly bubble chamber side wall (22) of the brokenly bubble chamber (B1)
State vertical gap (J2).
11. brokenly bubble steam valve according to claim 1, wherein, the brokenly bubble steam valve includes steam valve cap (200) and steams
Steam valve seat (100), the steam valve cap (200) and the steam valve seat (100) are interconnected so as to form the steam valve chamber, institute
Stating brokenly bubble chamber (B1) includes brokenly bubble rail cover (23) and the brokenly bubble chamber side wall (22) being arranged on the steam valve seat (100), should
Brokenly bubble rail cover (23) is removably attachable on the brokenly bubble chamber side wall (22).
12. a kind of electric cooker, the pot lid of the electric cooker is equipped with the brokenly bubble according to any one in claim 1~11
Steam valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610909372.5A CN107951402B (en) | 2016-10-18 | 2016-10-18 | Bubble breaking steam valve and electric cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610909372.5A CN107951402B (en) | 2016-10-18 | 2016-10-18 | Bubble breaking steam valve and electric cooker |
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| Publication Number | Publication Date |
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| CN107951402A true CN107951402A (en) | 2018-04-24 |
| CN107951402B CN107951402B (en) | 2023-07-28 |
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ID=61954339
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| Application Number | Title | Priority Date | Filing Date |
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| JP2009101123A (en) * | 2007-10-02 | 2009-05-14 | Panasonic Corp | Rice cooker |
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| CN204318427U (en) * | 2014-11-18 | 2015-05-13 | 松下家电研究开发（杭州）有限公司 | Anti-overflow electric rice cooker |
| CN205018820U (en) * | 2015-09-25 | 2016-02-10 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooker |
| CN205267896U (en) * | 2015-11-27 | 2016-06-01 | 佛山市顺德区美的电热电器制造有限公司 | Steam valve and cooking utensil |
| CN205568754U (en) * | 2015-12-19 | 2016-09-14 | 九阳股份有限公司 | Electricity steam valve for rice cooker and electricity rice cooker thereof |
| CN206333772U (en) * | 2016-10-18 | 2017-07-18 | 佛山市顺德区美的电热电器制造有限公司 | Brokenly bubble steam valve and electric cooker |
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2016
- 2016-10-18 CN CN201610909372.5A patent/CN107951402B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009101123A (en) * | 2007-10-02 | 2009-05-14 | Panasonic Corp | Rice cooker |
| CN204318427U (en) * | 2014-11-18 | 2015-05-13 | 松下家电研究开发（杭州）有限公司 | Anti-overflow electric rice cooker |
| CN204232963U (en) * | 2014-11-28 | 2015-04-01 | 佛山市顺德区美的电热电器制造有限公司 | Unidirectional steam valve assembly and there is the grill pan tool of this unidirectional steam valve assembly |
| CN205018820U (en) * | 2015-09-25 | 2016-02-10 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooker |
| CN205267896U (en) * | 2015-11-27 | 2016-06-01 | 佛山市顺德区美的电热电器制造有限公司 | Steam valve and cooking utensil |
| CN205568754U (en) * | 2015-12-19 | 2016-09-14 | 九阳股份有限公司 | Electricity steam valve for rice cooker and electricity rice cooker thereof |
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| CN107951402B (en) | 2023-07-28 |
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