CN206252358U - Brokenly bubble steam valve and electric cooker - Google Patents

Abstract

The utility model discloses a kind of brokenly bubble steam valve and electric cooker, brokenly bubble structure is provided with the steam valve pocket (B) of brokenly bubble steam valve, brokenly bubble structure includes the brokenly bubble chamber (B1) of rolling element (1) and both ends open, the bottom end opening connection steam inlet in brokenly bubble chamber, top end opening connects steam valve pocket, the bottom wall in brokenly bubble chamber is formed as the roll tilt wall (21) for tilting upward, and rolling element is built in brokenly bubble chamber and can be along roll tilt wall reciprocating rolling；Wherein, catch (4) is additionally provided with steam valve pocket, top end opening of the catch near brokenly bubble chamber sets to stop that rolling element skids off brokenly bubble chamber upwards.Bottom wall of the catch preferably from steam valve pocket is protruded upward.The simple structure of this brokenly bubble steam valve, practicality, it is easy to safeguard, clean, lifting de-soak effect are bright, and reliability is high, can all the time control rolling element to be worked in brokenly bubble chamber.

Description

Brokenly bubble steam valve and electric cooker

Technical field

The utility model belongs to household appliance technical field, in particular it relates to assembled on a kind of electric cooker and the electric cooker Steam valve.

Background technology

With the lifting of people's quality of the life, the performance to household electrical appliance such as electric cookers proposes requirement higher, business men Competition it is more fierce, this from the common people not long ago go to Japan it is quick-fried buy the news such as electric cooker in it is visible typically.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 get well, to meet public demand.

In the production design process of electric cooker, generally internal pot, the design of coating and heating uniformity, computer heating control Etc. aspect 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 are not obvious, and influence user makes to product With good opinion, and the regulation of the internal pot steam pressure of steam valve is also mostly defective with control function, and this factor is also largely On have impact on the final mouthfeel of rice.

High cost, maintainable poor in addition, the design structure of the steam valve also having is excessively complicated exquisite, stability is not yet Height, the slip of bulb-breaking device is uncontrolled, is also not easy to cleaning.

Utility model content

For above-mentioned not enough or defect of the prior art, the utility model proposes a kind of brokenly bubble steam valve, and have The electric cooker of the brokenly bubble steam valve, to be effectively improved the control of internal pot minute-pressure, lifted de-soak effect and simple structure, reliability, It is practical, it is easy to safeguard, clean.

To achieve the above object, the utility model provides a kind of brokenly bubble steam valve, and the brokenly bubble steam valve has steam Valve pocket, is provided with brokenly bubble structure in the steam valve pocket, the brokenly bubble structure includes rolling element and brokenly bubble chamber, and the brokenly bubble chamber has Air inlet and gas outlet, the rolling element are built in the brokenly bubble chamber and can back and forth be rolled along the bottom wall in the brokenly bubble chamber It is dynamic；Wherein, catch is additionally provided with the steam valve pocket, the catch sets to stop the rolling near the gas outlet in the brokenly bubble chamber Kinetoplast skids off the brokenly bubble chamber.

Preferably, the catch is protruded upward from the bottom wall of the steam valve pocket.

Preferably, the catch be elongated rib or along the brokenly bubble chamber bottom wall width arrange flat board.

Preferably, the rolling element is the roller of cylinder or the ball of spheroidal, and the top of the catch is broken with described Steep diameter of the minimum spacing between the roof in chamber less than the rolling element.

Preferably, the roof in the brokenly bubble chamber is brokenly bubble rail cover, and the brokenly bubble rail cover is removably attachable to described The madial wall of brokenly bubble steam valve is removably attachable on the wall of brokenly bubble chamber side, the top of the catch and the brokenly bubble rail cover Between minimum spacing be not less than 8mm.

Preferably, the madial wall of the brokenly bubble steam valve includes rolling gear structure, and the rolling gear structure stretches into described The air inlet in brokenly bubble chamber sentences the stop rolling element and skids off the brokenly bubble chamber downwards.

Preferably, diameter of the minimum spacing between the catch and brokenly bubble chamber side wall less than the rolling element.

Preferably, the steam valve pocket is provided with steam (vapor) outlet and steam inlet, the both ends open and circumference in the brokenly bubble chamber Closing, the bottom end opening in the brokenly bubble chamber connects the steam inlet, and top end opening connects the steam valve pocket, is built in described Circular gap is formed between the rolling element and brokenly bubble chamber perisporium in brokenly bubble chamber.

Preferably, the bottom wall in the brokenly bubble chamber is formed as the roll tilt wall for tilting upward, and the roll tilt wall is institute The downward-sloping part of the bottom wall of steam valve pocket is stated, the roll tilt wall extends to the steam inlet, the steam valve pocket The hydrops of bottom wall can be flowed downward out from the steam inlet via the roll tilt wall.

Preferably, the brokenly bubble steam valve includes steam valve cap and steam valve seat, the steam valve cap and steam for mutually fastening The steam valve pocket is formed between valve seat, the steam (vapor) outlet is formed on the steam valve cap, and the steam inlet is formed in On the bottom wall of the steam valve seat, the catch is integrally formed with the bottom wall of the steam valve seat.

On the basis of the above, the utility model additionally provides a kind of electric cooker, is provided with the pot lid of the electric cooker above-mentioned Brokenly bubble steam valve.

In brokenly bubble steam valve of the present utility model, especially the brokenly bubble knot with brokenly bubble chamber is additionally arranged in its steam valve pocket Structure, brokenly bubble is carried out by the way of rolling element is rolled along inclined-plane, slide rail design has been carried out between rolling element and brokenly bubble cavity wall, also It is additionally arranged catch etc. and skids off brokenly bubble chamber to stop rolling element, can effectively strengthen the operation stability and reliability of rolling element, is lifted The quality and reliability of steam valve.

Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.

Brief description of the drawings

The accompanying drawing for constituting a part of the present utility model is used for providing being further understood to of the present utility model, and this practicality is new The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model. In accompanying drawing：

Fig. 1 is the exploded perspective figure of the brokenly bubble steam valve according to preferred embodiment of the present utility model；

A-A sectional views of the Fig. 2 for the brokenly bubble steam valve shown in Fig. 1 after assembling；

Fig. 3 is the C-C sectional views of Fig. 2；

Fig. 4 is the force analysis schematic diagram of brokenly bubble steam valve of the present utility model；

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 of embodiment；

Fig. 7 is brokenly bubble steam valve in one of embodiment A-A sectional views after assembling；It is additionally arranged compared to Fig. 2 Spacing gusset；

Fig. 8 is the C '-C ' sectional views of Fig. 7；

Fig. 9 is brokenly bubble steam valve in one of embodiment A-A sectional views after assembling, increases aobvious compared to Fig. 2 The diameter D of the minimum spacing H and rolling element between catch and brokenly bubble chamber roof (i.e. brokenly bubble rail cover) is shown；

E-E sectional views of the Figure 10 for the brokenly bubble steam valve shown in Fig. 1 after assembling；

Figure 11 is sectional view of the brokenly bubble steam valve along the line A-A of Fig. 1, similar with Fig. 9, the difference is that, catch is from brokenly bubble chamber The top of roof extends downwardly from；

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, the difference is that, 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, and the rolling element has guide pillar；

Figure 16 is the front view of the rolling element of another preferred constructive form, and the rolling element has circular fin but do not lead 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：

The steam valve cap of 100 steam valve seat 200

The steam inlet of 300 sealing ring 101

The madial wall of bottom wall 103 of 102 steam valve seats

201 steam (vapor) outlets

The upward limit rib of 221 side wall guide groove 222

223 spacing gusset 224 installs inclined-plane

The brokenly bubble chamber perisporium of 1 rolling element 2

3 roll the catch of gear structure 4

The surrounding layer of 11 inner nuclear layer 12

The annulus fin of 13 guide pillar 14

The 15 circumferential roll tilt walls of clamping breach 21

The brokenly bubble rail cover of 22 brokenly bubble chamber side wall 23

A1 width A2 length

B steam valve pocket B1 brokenly bubbles chamber

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

Specific embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein Described specific embodiment is merely to illustrate and explains the utility model, is not limited to the utility model.

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can To be mutually combined.

Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

In the utility model, in the case where opposite explanation is not made, the noun of locality for using such as " upper and lower, top, bottom " is generally It is directed to each part mutual alignment for direction shown in the drawings or on vertical, vertical or gravity direction Relationship description word.The noun of locality such as " inside and outside " is referred to inside and outside chamber." laterally, longitudinal direction " is commonly referred to as roll tilt wall Horizontal and vertical, the longitudinal direction of roll tilt wall is diagonally downward or upward incline direction.

The utility model provides a kind of brokenly bubble steam valve, as shown in Fig. 1 to Figure 14, the steam valve pocket of the brokenly bubble steam valve B is provided with steam (vapor) outlet 201 and steam inlet 101, and especially brokenly bubble structure is had additional in the steam valve pocket B of brokenly bubble steam valve, and this breaks Bubble structure includes the brokenly bubble chamber B1 of rolling element 1 and both ends open, and bottom end opening (i.e. air inlet) the connection steam of brokenly bubble chamber B1 enters The air inlet of mouthful 101 or brokenly bubble chamber B1 directly as the steam inlet of steam valve pocket B, steam by 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 21 for tilting upward, and is built in the rolling element 1 in the B1 of brokenly bubble chamber Can be scrolled up along roll tilt wall 21 under the Steam Actuation entered from steam inlet 101 or under self gravitation effect, to Lower rolling, i.e. rolling element 1 can be slided up and down along roll tilt wall 21 is reciprocal.

In the cooking process of the culinary art household electrical appliances such as electric cooker, electric pressure cooking saucepan, because moisture largely evaporates, can be inside steam valve Substantial amounts of bubble is formed, so as to influence the mouthfeel of food.Enter steam valve when the steam in interior pot (or inner bag) carries soup When, internal brokenly bubble structure, so as to promote steam to be separated with soup, can be kept away by modes such as rotation, vibrations by bubble breaking Exempt from soup spill electric cooker in interior pot etc. and cook household electrical appliances.

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 Brokenly bubble steam valve, when interior pot steam pressure is larger, rolling element 1 can be pushed to the top of brokenly bubble chamber B1.Now, steam and bulla Foam is entered by the circular gap (including lateral clearance J1 and vertical gap J2 of Fig. 3) between rolling element 1 and brokenly bubble chamber perisporium 2 In steam valve pocket B, finally outwards escaped via the steam (vapor) outlet 201 on steam valve cap 200.In the process through circular gap In, there is a constant pressure drop in vapor pressure so that interior pan gas pressure is slightly higher compared to external pressure, that is, there is minute-pressure, is conducive to boiling Rice.Meanwhile, macrofoam at least splits into numerous another typical materials through circular gap, and another typical material is larger in volume and pressure reduces Steam valve pocket B in rupture, formed ponding flowed back from the bottom wall 102 of steam valve seat.And in digestion process, with firepower control System and moisture are gradually decreased, and interior pot steam pressure is simultaneously unstable, and rolling element 1 also will be along the slide downward of roll tilt wall 21, in rolling Kinetoplast 1 constantly extrudes macrofoam during up and down reciprocatingly rolling, and the ponding for being 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, steam lifting force is derived F1=F2+f, wherein f are the frictional force of inclined plane.When vapor action is S, roll tilt wall in the active area on rolling element 1 21 and rolling element 1 be respectively provided with smooth surface, with cause frictional force f it is negligible when, the steam of the bottom of brokenly bubble chamber B1 can be derived 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 exists under certain minute-pressure state relative to extraneous standard pressure, can push up rolling element 1, to keep preferable Effect of breaking bubble.

In the specific 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 is L, then vapor action is in the active area S=D*L on rolling element 1；And And

Brokenly bubble chamber B1 has rectangular cross section, and the width of the rectangular cross section is A1, and length is 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, at other Under shape, the computing formula of active area S also can be equally obtained.

By above force analysis and calculating, the size of P depends on the gravity of rolling element 1, lifting surface area, inclines 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 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 rolling element 1 needs to meet：

Wherein, P is the pressure difference 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 be the vapor action in the active area on the rolling element 1, and span is preferably 90 ~180mm², a is the roll tilt wall 21 slanted angle with respect to the horizontal plane, and span is preferably 5 °~30 °.

So, pressure difference P (i.e. pot inner pressure), roller size, the isoparametric decision design scopes of angle of inclination a are being provided When, required roller weight can be calculated, in order to selection, realize compact conformation, miniaturization and applicable brokenly bubble steam valve.

Drawn according to continuous experimental summary, when pressure difference P is preferably 50pa~300pa, can realize existing in pot Micro-pressure, rolling element 1 can be moved up and realize effect of breaking bubble at this pressure again, while thin rice gruel easily backflow again.

In a particular embodiment, it is highly preferred that the scope of P is 100pa~200pa.If pressure difference P=100Pa, track inclines 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.

Additionally, brokenly bubble chamber is relatively small so that when circular gap is sufficiently small, internal pressure can be lifted, steam valve pocket B should be compared to B1 is sufficiently large in brokenly bubble chamber, is conducive to maintaining 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 pocket B and brokenly bubble chamber B1 is preferably not less than 5, and this is also not necessarily limited to certainly.

When vapor action is preferably 90~180 square millimeters in the active area S on rolling element 1, 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.Now, according to above-mentioned rational parameter area, differential pressure requirements can be met, brokenly bubble steam valve can again realizes 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, roof guide groove and bottom wall shown in Fig. 3 are respectively formed with the roof and bottom wall of brokenly bubble chamber B1 and are led Groove, when roller is rolled along roll tilt wall 21, annulus fin 14 is embedded in roof guide groove and bottom wall guide groove to be oriented to slip；Its In, circular gap includes lateral clearance J1, is each formed between the outer peripheral face of roller and the top wall surface and wall surface of brokenly bubble chamber B1 Lateral clearance J1, so as to for the whole periphery wall of roller and the wall surface Full connected of brokenly bubble chamber B1, friction can be reduced Area, reduces frictional force.

Be 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 now only pass through annulus fin 14 between roller and brokenly bubble bottom of chamber wall During contact, easily operation is unstable.In order to further increase stationarity when roller runs, 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 on two projected side walls, so as to lift roller Stationarity during operation.After two projected side walls are 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 reduces contact area.

Referring also to Fig. 8 and Figure 15, the circumferential two ends of roller also can respectively be extended with guide pillar 13, and the both sides of brokenly bubble chamber B1 are broken Bubble chamber side wall 22 is respectively formed with parallel with roll tilt wall 21 side wall guide groove 221, and referring to Fig. 5, Fig. 6, guide pillar 13 stretches into side With guiding movement rolling element 1 in wall guide groove 221；Wherein, circular gap also includes vertical gap J2, the depth of side wall guide groove 221 Less than the extension elongation of guide pillar 13 so that be 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 pillar 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 Stabilization is remained, the pressure difference P's of above-mentioned derivation is with a high credibility.

Because rolling element 1 is extended with guide pillar 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 operation stability of rolling element 1 is improved by the cooperation of guide pillar and guide groove.

Specifically, the width of side wall guide groove 221 should be greater than the diameter of guide pillar 13 so that guide pillar 13 and side wall guide groove 221 it Between formed gap coordinate.Preferably, the depth of side wall guide groove 221 also should be less than the extension elongation of guide pillar 13 so that rolling element 1 with Gap is formed between brokenly bubble chamber side wall 22.So, coordinated by the gap between guide pillar, guide groove, and rolling element and side wall Between gap coordinate, do not influence moving back and forth for rolling element.

In Fig. 5, Fig. 6, side wall guide groove 221 caves inward to be formed from brokenly bubble chamber Ce Bi22 surfaces.But selectively, also may be used Make that brokenly bubble chamber side wall 22 is protruding with parallel interval and the guide groove top board dip-parallel with roll tilt wall 21 and guide groove base plate (do not show Show), side wall guide groove 221 is formed between guide groove top board and guide groove base 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, the base end wall is constituted to guide pillar 13 to lower limit, with Fig. 2, The function of the rolling gear structure 3 for being extended downwardly and inwardly and being 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 pillar 13 to lower limit, can stop that rolling element 1 skids off the bottom end opening of brokenly bubble chamber B1. Guide pillar 13 to upper limit similarly, will also address below.But, side wall is formed by the guide groove top board and the guide groove base plate that protrude and is led During groove 221, then need especially to set up the position limiting structure of guide pillar 13 at guide groove two ends.

In the implementation method that all accompanying drawings show, rolling element 1 is both preferably the roller of cylinder, but rolling element 1 also may be used Being ball of other such as spheroidals etc..During as ball, guide pillar 13 can extending radially out along ball.During as roller, Two guide pillars of cylinder 13 can respectively stretch out along the axle center two 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, be respectively formed with towards the corresponding axial end of roller on the brokenly bubble chamber side wall 22 of brokenly bubble chamber B1 both sides stretching out Spacing gusset 223, as shown in Figure 7, Figure 8.When the width of side wall guide groove 221 is larger and diameter of roller 13 is relatively small, Rolling element 1 easily produce deflection, now spacing gusset 223 the two ends axial end of rolling element body is carried out respectively it is spacing, 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, now 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 smaller spacing gusset 223 of roller spacing Effectively to prevent roller from deviating from the phenomenon of groove because unbalance stress occurs sideslip in rolling process.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 height of roller, so as to protect Card roller in the case of sideslip, less can not rub, with blocking-proof rolling element in the motion process of rolling element 1 with rolling element 1 motion.

Similar with to lower limit to realize to guide pillar 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., with top end wall, the top end wall is used for upper limit, and the top end wall is used 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 easy to rolling element 1 to be embedded in the B1 of brokenly bubble chamber downwards from top end opening, 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.Now, usual brokenly bubble chamber side wall has plastic material to be made, in external force Effect is lower to be deformed upon, and guide pillar 13 can cross upward limit rib 222 and slip into side wall guide groove 221 by extruding when mounted.

Referring to Fig. 5, the front end face towards steam valve pocket B of upward limit rib 222 is also preferably formed with installation inclined-plane 224, the installation inclined-plane 224 is inclined 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 pillar 13 can be slided along inclined-plane 224 is installed downward across upward limit rib 222 Enter in side wall guide groove 221.The setting for installing inclined-plane 224 has further facilitated the insertion side wall of guide pillar 13 guide groove 221.

In addition, the roof of brokenly bubble chamber B1 can fix covering plate, but may also preferably be brokenly bubble rail cover 23, the brokenly bubble rail Drive cap 23 is removably attachable to the madial wall 103 of brokenly bubble steam valve, and brokenly bubble rail cover 23 is detachably easy to user to clean brokenly bubble Chamber, for example carried out by respective known pivot structure it is pivotally-mounted, it is not described in detail herein.Brokenly bubble rail cover 23 it is pivotable Install, facilitate the cleaning after the assembling and use of rolling element 1.Specifically, may be used also on the brokenly bubble chamber side wall 22 of brokenly bubble chamber B1 The guide pillar mounting groove (not shown) extended downwardly towards brokenly bubble rail cover 23 from side wall guide groove 221 is set.When rolling element 1 is assembled, Brokenly bubble rail cover 23 is pivotally opened, the alignment guide pillar mounting groove of guide pillar 13 at the two ends of rolling element 1 is then pressed down on, and guide pillar 13 can Slipped into side wall guide groove 221 along guide pillar mounting groove.Similarly, rolling element 1 can reversely be taken out after use, brokenly bubble chamber B1 is entered Row cleaning.

Above describe to the upper and lower spacing of guide pillar 13.Similarly, rolling element body should also be carried out it is rational spacing up and down, Especially when without guide pillar 13 or guide pillar 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, it is to avoid rolling element is skidded 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 By steam valve madial wall 103 stretch into brokenly bubble chamber B1 bottom end opening and the rolling gear structure 3 that is formed, by the rolling gear Structure 3, can effectively stop that rolling element 1 skids off the bottom end opening of brokenly bubble chamber B1, while not influenceing steam to enter brokenly bubble chamber B1.

Fig. 9 to Figure 14 illustrates three kinds of catch of form 4 and its mounting structure, to realize to rolling element body to the upper limit Position.Catch therein 4 is arranged in steam valve pocket B, and the top end opening near brokenly bubble chamber B1 is set, upward to stop rolling element 1 Skid off brokenly bubble chamber B1.

In the first implementation method of Fig. 9 and Figure 10, catch 4 is preferably directly from the bottom wall of steam valve pocket B (i.e. steam The bottom wall 102 of valve seat) protrude upward, this structure makes steam from the gap between the roof of the top of catch 4 and brokenly bubble chamber B1 Flow up, be easy to steam steam (vapor) outlet 201 upward to flow.

Wherein, catch 4 can be variously-shaped elongated rib strip shaped, or the width along roll tilt wall 21 The flat board of arrangement.When certainly, using elongated rib strip shaped, the backflow of the hydrops such as thin rice gruel being more beneficial on the bottom wall 102 of steam valve seat. And use writing board shape, then can more reliably stop that rolling element body is skidded 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 can not be excessive so that rolling element 1 can not be skidded off from the top of catch 4, it is ensured 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 is removably connected pivotally to the madial wall of brokenly bubble steam valve 103 are removably attachable to the side wall in brokenly bubble chamber, when being cleaned after assembling or use, are both needed to pull and open brokenly bubble rail upwards Drive cap 23.Therefore, the size of the minimum spacing H between the top of catch 4 and brokenly bubble rail cover 23 should be suitable to finger insertion, i.e., most Small spacing H should be greater than finger thickness.In the present embodiment, minimum spacing H is not less than 8mm, i.e., 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 and open brokenly bubble chamber perisporium 2 upwards 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 flat board for extending laterally When, catch 4 need to be limited with one fixed width.If catch 4 is elongated rib, being arranged laterally at a spacing along roll tilt wall 21 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 for mutually fastening Steam valve pocket 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.It is tight to increase the fastening between steam valve cap 200 and steam valve seat 100 Degree, prevents steam from being escaped from the jointing edge of the two, and sealing ring 300 is additionally provided between steam valve cap 200 and steam valve seat 100. Now, catch 4 directly from the bottom wall 102 of steam valve seat protrude upward when, catch 4 preferably with the bottom wall 102 of steam valve seat It is integrally formed, makes manufacture more convenient.Certainly, the attachment structure of catch 4 is also not necessarily limited to the integrated formed structures such as casting, it is also possible to 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 the downward-sloping part of the bottom wall of steam valve pocket B, roll tilt wall 21 extend to steam inlet 101, the hydrops of the bottom wall of steam valve pocket B (including condensed water and foam burst thin rice gruel to be formed etc.) Can swimmingly via roll tilt wall 21 from the outflow in time downwards of steam inlet 101.

Additionally, at the top end opening of brokenly bubble chamber B1, catch 4 also can stretch out to stop that rolling element 1 is slided from brokenly bubble chamber perisporium 2 Go out brokenly bubble chamber B1.So, the form of catch 4 protruded upward from the bottom wall 102 of steam valve seat compared to Fig. 9, is more beneficial for steaming The hydrops backflow on the surface of bottom wall 102 of steam valve seat.

Likewise, catch 4 elongated rib or the width along roll tilt wall 21 can be arranged as described above Flat board.

In second implementation method 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 is extended downwardly from.So catch 4 has spacing in suspension shape between catch and brokenly bubble bottom of chamber wall, and such catch will not be hampered Thin rice gruel is hindered to be flowed back from the bottom wall in brokenly bubble chamber.

Likewise, effectively to stop that rolling element body skids off brokenly bubble chamber B1 upwards, no matter rolling element 1 is the roller of cylinder 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 skids off lower section that can not be substantially from catch 4.

It is identical with the implementation method shown in Fig. 9, Figure 10, the brokenly bubble chamber side wall of 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, to cause rolling element body Can not be skidded off from the side of catch 4.

In the third implementation method of Figure 13 and Figure 14, 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 Thin rice gruel will not be equally hindered to be flowed back from the bottom wall in brokenly bubble chamber.

Catch 4 in figure is preferably in T shape, it may include longitudinal extension part and lateral extensions, and longitudinal extension part is from broken The top for steeping 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 in 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 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 preferably includes quality relatively large inner nuclear layer 11 and the relatively small surrounding layer 12 of quality, and surrounding layer 12 is Flexible material layer, referring to Figure 15 to Figure 19.So, the mass of inner nuclear layer 11 is big, is easy to roll brokenly bubble, and surrounding layer 12 is flexible material Material, it is possible to decrease the noise produced during rolling, mitigates impact power when rolling element 1 is rolled, and equally also slows 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 big in density, volume It is small, it is suitable to the miniaturization needs of brokenly bubble steam valve.For example in each implementation method of the present utility model, inner nuclear layer 11 is preferably adopted With the stainless steel of the food-grade for being difficult to get rusty, stainless iron or aluminum etc..

It is the glue-line of easily attachment and shaping, such as layer of silica gel, rubber layer or other elastomeric materials that surrounding layer 12 is preferably Layer, the attachment degree of ectonexine is high, is difficult mutually stripping.

During using layer of silica gel or rubber layer, surrounding layer 12 can be formed at kernel by modes such as injection moulding 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.Now, as shown in Figure 15, Figure 19, the end shape of roller Into there is the circumferential clamping breach 15 of circumferentially spaced three, three circumferential insertion surrounding layers 12 of clamping breach 15 are simultaneously outwards sudden and violent Dew inner nuclear layer 11.The clamping face of wherein each claw extends to end face from the side face of rolling element 1.

In addition, routinely can also use centering mode clamping roller, so then the axle center two ends of roller be respectively formed with to A few axial clamping breach, axial clamping breach insertion surrounding layer 12 simultaneously outwards exposes inner nuclear layer 11.

The axle center two ends of the roller shown in Figure 15 are extended with guide pillar 13 respectively, and the roller shown in Figure 16 to Figure 19 is not led Post 13, but with annulus fin 14.

But when being extended with guide pillar 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 pillar and guide groove, guide pillar 13 is preferably formed in one with surrounding layer 12, i.e., guide pillar 13 is also complete Using flexible material.

Annulus fin 14 can be formed with outer peripheral face as the inner nuclear layer 11 of cylinder, annulus is covered by surrounding layer 12 Fin 14, the same friction for reducing annulus fin 14.Certainly, annulus fin 14 can also be similar to guide pillar 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 provided 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 the contact-impact of surrounding layer 12.The setting of surrounding layer 12 can phase When the repeated stock for slowing down rolling member 1 pair in degree and rolling gear structure 3.Certainly, the surface of rolling gear structure 3 may also set up slow Rush layer.

Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., such as guide pillar 13 also can be from rollings The only one end face of body 1 is stretched out, and guide pillar 13 is also not necessarily limited to completely using flexible material, can have metal inner core inner prop and The flexible material outer layer of extexine cladding, the bottom end opening of steam inlet 101 and brokenly bubble chamber B1 can unite two into one etc., it is all so Class is changed and should be included within protection domain of the present utility model.

It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the utility model is to each Possible combination is planted no longer separately to illustrate.

Additionally, can also be combined between a variety of implementation methods of the present utility model, as long as it is not disobeyed Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.

Claims (11)

1. a kind of brokenly bubble steam valve, the brokenly bubble steam valve has steam valve pocket (B), it is characterised in that the steam valve pocket (B) Brokenly bubble structure is inside provided with, the brokenly bubble structure includes rolling element (1) and brokenly bubble chamber (B1), and the brokenly bubble chamber has air inlet and goes out Gas port, the rolling element (1) is built in the brokenly bubble chamber (B1) and can back and forth be rolled along the bottom wall of the brokenly bubble chamber (B1) It is dynamic；Wherein, catch (4) is additionally provided with the steam valve pocket (B), the catch (4) sets near the gas outlet of the brokenly bubble chamber (B1) Put to stop that the rolling element (1) skids off the brokenly bubble chamber (B1).

2. brokenly bubble steam valve according to claim 1, it is characterised in that the catch (4) is from the steam valve pocket (B) Bottom wall is protruded upward.

3. brokenly bubble steam valve according to claim 1, it is characterised in that the catch (4) is for elongated rib or along described The flat board of the width arrangement of the bottom wall in brokenly bubble chamber (B1).

4. brokenly bubble steam valve according to claim 2, it is characterised in that the rolling element (1) be cylinder roller or The ball of spheroidal, the minimum spacing (H) between the top of the catch (4) and the roof of the brokenly bubble chamber (B1) is less than described The diameter (D) of rolling element (1).

5. brokenly bubble steam valve according to claim 4, it is characterised in that the roof of the brokenly bubble chamber (B1) is brokenly bubble track Lid (23), the brokenly bubble rail cover (23) is removably attachable to the madial wall (103) or removably of the brokenly bubble steam valve It is connected on brokenly bubble chamber side wall (22), the minimum spacing (H) between the top of the catch (4) and the brokenly bubble rail cover (23) Not less than 8mm.

6. brokenly bubble steam valve according to claim 1, it is characterised in that madial wall (103) bag of the brokenly bubble steam valve Rolling gear structure (3) is included, the air inlet that rolling gear structure (3) stretches into the brokenly bubble chamber (B1) sentences the stop rolling Body (1) skids off downwards the brokenly bubble chamber (B1).

7. brokenly bubble steam valve according to claim 1, it is characterised in that the catch (4) and brokenly bubble chamber side wall (22) it Between minimum spacing (H) less than the rolling element (1) diameter (D).

8. the brokenly bubble steam valve according to any one in claim 1~7, it is characterised in that the steam valve pocket (B) sets There are steam (vapor) outlet (201) and steam inlet (101), the both ends open of the brokenly bubble chamber (B1) and circumferentially closed, the brokenly bubble chamber (B1) bottom end opening connects the steam inlet (101), and top end opening connects the steam valve pocket (B), is built in described broken Circular gap is formed between the rolling element (1) and brokenly bubble chamber perisporium (2) in bubble chamber (B1).

9. brokenly bubble steam valve according to claim 8, it is characterised in that the bottom wall of the brokenly bubble chamber (B1) is formed as inclining Upward roll tilt wall (21), the roll tilt wall (21) is the downward-sloping part of the bottom wall of the steam valve pocket (B), The roll tilt wall (21) extends to the steam inlet (101), and the hydrops of the bottom wall of the steam valve pocket (B) can be via The roll tilt wall (21) flows downward out from the steam inlet (101).

10. brokenly bubble steam valve according to claim 8, it is characterised in that the brokenly bubble steam valve includes steam valve cap (200) steam valve is formed between the steam valve cap (200) and steam valve seat (100) that and steam valve seat (100), mutually fasten Chamber (B), the steam (vapor) outlet (201) is formed on the steam valve cap (200), and the steam inlet (101) is formed in described On the bottom wall (102) of steam valve seat, the catch (4) is integrally formed with the bottom wall (102) of the steam valve seat.

11. a kind of electric cookers, it is characterised in that the pot lid of the electric cooker is provided with according to any one in claim 1~10 Brokenly bubble steam valve described in.