CN106923660B - A kind of limiting valve of pressure cooker and pressure cooker - Google Patents
A kind of limiting valve of pressure cooker and pressure cooker Download PDFInfo
- Publication number
- CN106923660B CN106923660B CN201710323008.5A CN201710323008A CN106923660B CN 106923660 B CN106923660 B CN 106923660B CN 201710323008 A CN201710323008 A CN 201710323008A CN 106923660 B CN106923660 B CN 106923660B
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- bonnet
- channel
- pressure cooker
- spool
- guide surface
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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
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/09—Safety devices
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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
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0802—Control mechanisms for pressure-cookers
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
A kind of limiting valve of pressure cooker of present invention offer and pressure cooker, belong to cooker field.It solves the problems, such as that existing limiting valve of pressure cooker causes control accuracy low in such a way that rotation is adjusted.It includes valve seat, exhaust pipe and can be relative to the spool and bonnet that valve seat moves up and down, pressure spring is equipped between spool and bonnet, and spool sealing exhaust pipe under the action of pressure spring, bonnet, which is equipped with, adjusts channel, it includes the different first positions and the second position of height to adjust channel, and bonnet is equipped with stopper section between the first position and the second position for adjusting channel, the limiting valve of pressure cooker further includes positive stop strip, the lower end of positive stop strip is positioned on valve seat, the upper end of positive stop strip, which is stuck in, to be adjusted in channel and can move to first position or the second position adjusting in channel, and bonnet can be driven to move to compression or release pressure spring when the upper end of positive stop strip moves between the first position and the second position.It has the advantages that the pressure value of setting can be accurately controlled.
Description
Technical field
The present invention relates to cooker fields, are related to a kind of pressure limiting valve more particularly to a kind of limiting valve of pressure cooker and pressure cooker.
Background technology
In order to the air pressure for making pressure cooker interior energy reach certain, and in pot air pressure be more than safe range when can arrange outward
A pressure limiting valve usually can be all arranged in gas on pot cover.Existing pressure limiting valve is to be pressed on pressure cooker cover by the weight of its own
Exhaust pipe on realize pressure-limiting function.However using pressure cooker when, boil a variety of different foods can make it is required in pot
Pressure will be different, the usual method is that being superimposed a weight on pressure limiting valve, increase weight by weight, and making in pot can be with
Reach higher pressure.But pressure limiting valve one side structure in this way is more complicated, another aspect weight is and limit
Pressure valve body separation, weight is easily lost and influences the normal use of pressure cooker in the long-term use.
To solve the above-mentioned problems, occurs the limiting valve of pressure cooker of another structure in the market, this is also current pressure
The most widely used limiting valve of pressure cooker on pot, it is generally arranged at the exhaust pipe of pressure cooker lid, is connected on pot cover
One valve seat, exhaust pipe are in the center of valve seat, and there are one valve handle and spools, valve handle to be connected with valve seat in valve seat, spool
Between valve handle and pot cover, and the lower end of spool is pressed on exhaust pipe, and a spring, valve seat are equipped between spool and valve handle
In be equipped with several gas vents, spool is pressed on exhaust pipe by the elastic force of spring and keeps sealing, the medial surface of valve seat is equipped with extremely
A few step is equipped with stopper in the outside of valve handle, and stopper is blocked on step under the action of the spring.Rotating valve handle being capable of valve handle
The stopper of lower part is blocked in the position of step, that is, changes the upper and lower position of valve handle, and since the position of spool is fixed, then just
The distance between valve handle and spool can be changed, while again since spring is arranged between valve handle and spool, spring is pressed
Contracting amount will be changed so that spring acts on the change of the elastic force on spool, the pressure set points of pressure cooker also therewith by
Change.
Although above-mentioned limiting valve of pressure cooker realizes pressure adjusting function, there is also some shortcomingss for it：Pressure
The adjusting of power setting value realized by rotating valve handle, and on the pressure limiting valve also and be not provided with can be to the rotation of valve handle
The control mechanism limited is measured, this results in the amount of spin of valve handle to be determined completely by the subjective will of user in use
It is determined, then the adjusting that just will appear pressure set points is difficult to be accurately controlled.
Invention content
The purpose of the present invention is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of limiting valve of pressure cooker and pressure
Pot, the technical problem to be solved is that how to improve pressure controlled control accuracy.
Object of the invention can be realized by the following technical scheme：
A kind of limiting valve of pressure cooker, including valve seat, exhaust pipe and can relative to spool that valve seat moves up and down with
Bonnet is equipped with pressure spring between spool and bonnet, and spool sealing exhaust pipe, feature under the action of pressure spring exist
In the bonnet, which is equipped with, adjusts channel, and it includes the different first positions and the second position of height to adjust channel, and bonnet exists
It is equipped with stopper section between the first position and the second position in adjusting channel, which further includes positive stop strip, positive stop strip
Lower end be positioned on valve seat, the upper end of positive stop strip be stuck in adjust in channel and can be moved in adjusting channel first position or
The second position, and can drive when the upper end of positive stop strip moves between the first position and the second position bonnet move to compression or
Discharge pressure spring.
Original state, pressure spring one end, which acts on spool, makes spool block exhaust pipe, the other end of pressure spring
It acts on bonnet, while the upper end of positive stop strip is stuck in and adjusts in channel, bonnet is relatively fixed with valve seat in this state, but is used
Hand can make bonnet overcome pressure spring elastic force when pressing bonnet is acted on and is moved down.It needs to adjust the setting pressure in pot
When value, pressing down on bonnet makes bonnet overcome the elastic force of pressure spring and move down, and makes the upper end of positive stop strip along adjusting
Channel and adjust channel first position and the second position between move.Not due to the height of first position and the second position
Together, bonnet will be made to compress or discharge pressure regulation bullet when therefore the upper end of positive stop strip moves between the first location and the second location
It is moved between the state of spring.Bonnet is equipped with stopper section between the first position and the second position for adjusting channel, in stopper section
Effect is lower so that the upper end of positive stop strip is maintained at first position or the second position when user unclamps hand, to fix bonnet
Setting height.
This limiting valve of pressure cooker compresses or discharges pressure spring, the setting of bonnet by changing the setting height of bonnet
Height be again by positive stop strip upper end in adjusting channel first position or the second position match and determine, and the on bonnet
One position or the second position are divided into a decrement for not corresponded to pressure spring, therefore only need to be according to required setting pressure
Value designs the height of first position and the second position, you can realizes accurately controlling for the pressure value set needed for pressure cooker.
In above-mentioned limiting valve of pressure cooker, the bonnet side has recessed adjusting cavity, and bonnet is in adjusting cavity
It is interior to be equipped with limited block, form above-mentioned adjusting channel between the limited block and the inner wall of adjusting cavity, and the lower end of limited block with
The first position for adjusting channel is formed between the inner wall of adjusting cavity, is formed and is adjusted between the upper end of limited block and the inner wall of adjusting cavity
The second position in channel, the upper end of the positive stop strip are to bend into the first bending part adjusted in channel.
The first position for adjusting channel is formed between the lower end of limited block and the inner wall of adjusting cavity, it means that first position
In compared with low spot, the second position for adjusting channel is formed between the upper end of limited block and the inner wall of adjusting cavity, it means that second
Position is in higher point.So when the upper end of limited block moves to the second position from first position, bonnet is in compression pressure regulation
The state of spring；When the upper end of limited block moves to first position from the second position, bonnet is in the state of release pressure spring.
In above-mentioned limiting valve of pressure cooker, the limited block include guide surface one, guide surface two and positioned at limit
The limit notch of block upper end side wall, the limit notch is between guide surface one and guide surface two, and guide surface one and guiding
The distance between face two from guide surface one from limit notch to far from being gradually reduced at limit notch, guide surface one be oriented to
The distance between face two gradually increases from the bottom to top along the short transverse of bonnet, and the limit notch is located at guide surface one and is oriented to
Between face two, and the second position for adjusting channel is formed between limit notch and the inner wall of opposite adjusting cavity, described first
In the face projected to underface setting in guide surface one, and the intersection point of the side wall of the peak of guide surface one and limited block upper end with
And the peak of guide surface two and the intersection point of the side wall of limited block upper end constitute stopper section.
Guide surface one and guide surface two are set on limited block, due to the distance between guide surface one and guide surface two from down toward
It is upper gradually to increase, then can make when pressing bonnet the first bending part of positive stop strip upper end along it is one of be oriented to towards
Upper movement, and at the upper peak for moving on to the guide surface after move to second between guide surface one and guide surface two again
In position.And when pressing bonnet again, the first bending part is deviate from out of the second position and is moved to another guide surface most
It is then moved downwardly at the first position for adjusting channel further along the guide surface at high point.
Pass through the setting of guide surface one and guide surface two so that the first bending part can be when bonnet be pressed smoothly along it
In a guide surface move upwards and accurately drop into the second position, or when bonnet is pressed again smoothly from the second position
Interior abjection simultaneously accurately falls back to along another guiding at the first position for adjusting channel downwards, simultaneously because the second position
Height can be designed according to the elastic force that pressure spring acts on spool under each state, therefore also can smoothly be ensured
Setup pressure value accurately controls.And the intersection point and guiding of the peak due to guide surface one and the side wall of limited block upper end
The peak in face two and the intersection point of the side wall of limited block upper end constitute stopper section, then the first bending part of positive stop strip is either
The second position is moved to from first position or moves go back to first position from the second position, can all be passed through only during movement
Stopper and patter sound occurs, user can unclamp hand in time as signal, with ensure positive stop strip first bending
Portion can be accurately maintained in first position or the second position.
Limit notch is set by the upper end side wall in limited block, then the first bending part when positive stop strip moves to limit
When at the limit notch on block, user unclamps hand, the first bending part of positive stop strip just can be stuck in naturally limit notch with it is opposite
Adjusting cavity inner wall between, using this position as the second position, the first bending part of positive stop strip can be made steadily to be stuck in
Nonvoluntary play in two positions.Set being located at the relationship of the lowest point and first position that adjust channel to guide surface one to just
In the face of lower section projection, primarily to can be in the upper end for just making positive stop strip when just starting to press bonnet and one phase of guide surface
Contact is pressed with ensuring that the upper end of positive stop strip can move upwards along guide surface one and smoothly be maintained at the second position to reach setting
Force value accurately controls.
In above-mentioned limiting valve of pressure cooker, on the inner wall of the valve seat have protrusion positioning region, positioning region it is upper
Surface offers downwards link slot and offers the location hole being connected with link slot on positioning region, under the positive stop strip
End is fixed on after the link slot in the location hole.
When the lower end of positive stop strip to be connected on valve seat, the lower end of positive stop strip is first passed vertically through into downwards link slot, so
It bends and is inserted into location hole again afterwards, thus the lower end of positive stop strip forms fixation with valve seat.
In above-mentioned limiting valve of pressure cooker, the lower end of the positive stop strip include third bending part, vertical interconnecting piece with
And second bending part, and positioning recess, third bending part are formed between third bending part, vertical interconnecting piece and the second bending part
It is inserted into location hole, vertical connecting portion is caught in in link slot and positioning region in positioning recess.
When positive stop strip lower end is connected with valve seat, the vertical connecting portion of positive stop strip in link slot, positive stop strip
Third bending part is bent into location hole, so that positioning region snaps onto third bending part, vertical interconnecting piece and the second bending
In the positioning recess formed between portion.
So that the lower end height of positive stop strip is positioned by the way that third bending part to be inserted into location hole, but is bent simultaneously in third
Portion can make the upper end of positive stop strip swing by the center of circle of location hole after being inserted into location hole, and such structure setting makes
Obtaining the upper end of positive stop strip can either move up and down along the side wall of limited block, and can be limited when moving upward to peak
The positioning of position lower end limits and does transverse movement along limited block upper end side wall, ensures that positive stop strip upper end smoothly can move ground
It is moved to compress or discharge pressure spring, to realize setup pressure value between the first position and the second position for adjusting channel
Accurately control.
In above-mentioned limiting valve of pressure cooker, the spool is located in bonnet, and the spool lower end outside has ring
Shape convex shoulder, spool have several arc interconnecting pieces to raise up at the outer rim of annular convex shoulder, and it is fixed to have been provided in bonnet side wall
There is the locating piece of protrusion, locating piece to be located in locating slot for position slot, the upper end outside of the arc interconnecting piece opposite with the locating slot
And locating piece can move up and down in locating slot.
Locating piece is located in locating slot, and while bonnet can be moved up and down relative to spool, locating slot again can be right
The circumferential deflection of locating piece forms limit, to be rotated when preventing bonnet from moving up and down relative to valve seat, to ensure setting pressure
Force value accurately controls.
In above-mentioned limiting valve of pressure cooker, the spool is cylindrical in shape and is sleeved on exhaust pipe, the pressure spring
It is sleeved on outside spool, and one end of pressure spring acts on annular convex shoulder, the other end of pressure spring acts on bonnet bottom.
Since bonnet is fixed under without outer force effect relative to valve seat, then the elastic force of pressure spring will be pressed in spool
Make spool that will be vented the seal of tube on annular convex shoulder, when needing exhaust, spool can be overcome pressure spring by the gas in pot
It acts on and moves up, exhaust is realized to make exhaust pipe open；After exhaust, spool is again in the effect of pressure spring
Under be sealed on exhaust pipe.
In above-mentioned limiting valve of pressure cooker, the inner wall of bonnet has a gib block, shape between two adjacent arc interconnecting pieces
At guide channel, gib block is located in guide channel.
The axial movement of bonnet is oriented to by the cooperation of gib block and guide channel, with ensure bonnet steadily into
Row is axially moved.
In above-mentioned limiting valve of pressure cooker, the valve seat side has perforative connection window, and the outside of bonnet has
The crotch of protrusion, crotch is located in connection window and crotch can move up and down in connection window.
Crotch is located in connection window, and while bonnet can be moved up and down relative to valve seat, connection window again can be to curved
The circumferential deflection of hook forms limit, to be rotated when preventing bonnet from moving up and down relative to valve seat, makes the of positive stop strip upper end
One bending part can smoothly drop into the limit notch of limited block upper end, to ensure accurately controlling for setup pressure value.
A kind of pressure cooker, the pressure cooker include above-mentioned limiting valve of pressure cooker.
Compared with prior art, this limiting valve of pressure cooker compresses or discharges pressure regulation by changing the setting height of bonnet
Spring, the setting height of bonnet are matched and are determined with the first position or the second position adjusted in channel by positive stop strip upper end again
, and the first position or the second position on bonnet are divided into a decrement for not corresponded to pressure spring, therefore only need basis
Required setup pressure value designs the height of first position and the second position, you can realizes the pressure set needed for pressure cooker
Value accurately controls.
Description of the drawings
Fig. 1 is the schematic diagram of this limiting valve of pressure cooker embodiment one.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the sectional view of Fig. 1 other directions.
Fig. 4 is the partial exploded view of Fig. 1.
Fig. 5 be in this limiting valve of pressure cooker embodiment one without valve seat when structural schematic diagram.
Fig. 6 is the partial enlarged view in Fig. 2.
Fig. 7 is the partial enlarged view in Fig. 4.
Fig. 8 is the sectional view of valve seat in this limiting valve of pressure cooker embodiment one.
Fig. 9 is the structural schematic diagram of spool in this limiting valve of pressure cooker embodiment one.
Figure 10 is the sectional view of bonnet in this limiting valve of pressure cooker.
Figure 11 is that another angle that positive stop strip upper end is located at when adjusting in channel in this limiting valve of pressure cooker embodiment one is put
Big figure.
Figure 12 is the sectional view of positive stop strip in this limiting valve of pressure cooker embodiment one.
In figure, 1, valve seat；1a, connection window；1b, positioning region；1b1, link slot；1b2, location hole；2, exhaust pipe；2a, row
Stomata；3, spool；3a, connecting pin；3b, seal head；3c, annular convex shoulder；3d, arc interconnecting piece；3d1, locating piece；3e, guiding
Channel；4, bonnet；4a, cavity；4b, through-hole；4c, cyclic annular protrusion one；4d, cyclic annular protrusion two；4d1, gib block；4d2, positioning
Slot；4e, crotch；4f, adjusting cavity；4g, limited block；4g1, guide surface one；4g2, guide surface two；4g3, limit notch；4g4, stop
Stopper；4h, channel is adjusted；4h1, first position；4h2, the second position；5, pressure spring；6, positive stop strip；6a, the first bending part；
6b, the second bending part；6c, third bending part；6d, vertical interconnecting piece；6e, positioning recess.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Embodiment one
As Figure 1-Figure 4, a kind of limiting valve of pressure cooker, including tubular valve seat 1, the upper end opening of valve seat 1, valve seat
It is equipped with exhaust pipe 2 in 1, there is limit shoulder block, the bottom wall of inner cavity of limit shoulder block and valve seat 1 to lean, exhaust pipe 2 on exhaust pipe 2
Lower end be pierced by 1 bottom of valve seat, and pass through exhaust when in use equipped with external screw thread on the exhaust pipe 2 for being pierced by 1 bottom of valve seat
External screw thread on pipe 2 is fixed on the pot cover of pressure cooker.
The spool 3 in hollow sleeve tubular is equipped with as shown in Fig. 2, Fig. 3 and Fig. 9, in valve seat 1, spool 3 is sleeved on valve seat 1, valve
The top of core 3 is equipped with seal head 3b, and the outside of seal head 3b is circumferentially connected with several connecting pin 3a, and seal head 3b and spool
3 upper end is connected by each connecting pin 3a, and the lower end of seal head 3b is tapered, and gas vent 2a has been provided on exhaust pipe 2, sealing
The lower end of head 3b is resisted against in the upper port of gas vent 2a and seals gas vent 2a.The top of spool 3 is equipped with bonnet 4, bonnet 4 with
Valve seat 1 is circumferentially fixed and bonnet 4 can be moved up and down relative to valve seat 1, and pressure spring 5, pressure spring 5 are arranged with outside spool 3
One end withstand on bonnet 4, there is annular convex shoulder 3c, the other end of pressure spring 5 to be pressed in annular convex shoulder for the lower end outside of spool 3
On 3c, the pushing of spool 3 is made the seal head 3b on spool 3 always will exhaust under the action of no external force by the elastic force of pressure spring 5
The upper port of pipe 2 seals.
As shown in Fig. 2, Fig. 3 and Figure 10, the bottom of bonnet 4 has cavity 4a, has through-hole 4b, valve at the center of bonnet 4
Cap 4 has downward one 4c of cyclic annular protrusion, the center of through-hole 4b and one 4c of cyclic annular protrusion on bonnet 4 at the roof of cavity 4a
Hole face connection, 3 upper end of spool are located in one 4c of cyclic annular protrusion, and the upper end of pressure spring 5 withstands on the lower end of one 4c of cyclic annular protrusion
On face.Also there is bonnet 4 downward two 4d of cyclic annular protrusion, one 4c of ring-type protrusion to be located at cyclic annular protrusion two at the roof of cavity 4a
In 4d, and the lower end of two 4d of cyclic annular protrusion is stretched out outside the lower end of one 4c of cyclic annular protrusion.
As shown in Figure 9 and Figure 10, spool 3 has several arc interconnecting pieces to raise up at the outer rim of annular convex shoulder 3c
Guide channel 3e is formed between 3d, two adjacent arc interconnecting piece 3d, is located at two 4d's of cyclic annular protrusion outside one 4c of cyclic annular protrusion
It is located in guide channel 3e circumferentially arranged with several gib block 4d1, gib block 4d1 on madial wall.And positioned at ring-type protrusion one
The side of two 4d of cyclic annular protrusion outside 4c is equipped with locating slot 4d2, outside the upper end of the arc interconnecting piece 3d opposite with locating slot 4d2
There is the locating piece 3d1 of protrusion, locating piece 3d1 to be located in locating slot 4d2 for side, left and right sidewall and the locating slot 4d2 of locating piece 3d1
Left and right madial wall lean and locating piece 3d1 can move up and down relative to locating slot 4d2.
As shown in figures 1 and 3,4 lower end of bonnet is located in valve seat 1, and 4 upper end of bonnet is stretched out outside valve seat 1,1 side of valve seat tool
There are perforative connection window 1a, the outside of bonnet 4 that there is the crotch 4e of protrusion, makes crotch 4e under the elastic force effect of pressure spring 5
Upper end be hooked in valve seat 1 on the upper madial wall of connection window 1a, the two side of crotch 4e is with valve seat 1 in two connect at window 1a
Side wall leans, thus bonnet 4 forms the setting for opening up height and being more than crotch 4e that is circumferentially fixed, and connecting window 1a with valve seat 1
Highly, lower madial wall of the lower end of crotch 4e higher than valve seat 1 at connection window 1a, thus, it is possible to relative to about 1 valve seat for bonnet 4
Movement.
Have as shown in Fig. 2, Fig. 4, Fig. 5, Fig. 7, Figure 11 and Figure 12, on bonnet 4 and adjust channel 4h, adjusts and have on the 4h of channel
The first position 4h1 and second position 4h1 for having height different, and bonnet 4 is in the first position 4h1 and second for adjusting channel 4h
Setting has stopper section 4g4 between 4h1.Positive stop strip 6 is equipped between bonnet 4 and valve seat 1,4 side of bonnet has recessed adjusting cavity
4f, bonnet 4 have limited block 4g in adjusting cavity 4f, are formed between limited block 4g and the inner wall of adjusting cavity 4f and adjust channel 4h.
Have one 4g1 of guide surface and two 4g2 of guide surface, one 4g1 of guide surface mutually be overlapped with the minimum point of two 4g2 of guide surface on limited block 4g
It closes, and the distance between one 4g1 of guide surface and two 4g2 of guide surface gradually increase from bottom to up.The lowest point of adjusting cavity 4f and limit
To adjust the first position 4h1 of channel 4h between the lower end of position block 4g, and the first position 4h1 for adjusting channel 4h is located at guide surface
In the face that one 4g1 is projected to underface.The upper end side wall of limited block 4g has a limit notch 4g3, and limit notch 4g3 with it is opposite
Adjusting cavity 4f inner wall between form the second position 4h2 for adjusting channel 4h, the peak of one 4g1 of guide surface and limited block 4g
The peak of two 4g2 of intersection point and guide surface of the side wall of upper end and the intersection point of the side wall of the upper ends limited block 4g constitute stopper section
4g4.The lower end of positive stop strip 6 is located on valve seat 1, and the upper end of positive stop strip 6 is to bend into the first bending part 6a adjusted in the 4h of channel.
As shown in Fig. 6, Fig. 8 and Figure 12, in the present embodiment, there is the positioning region 1b of protrusion on the madial wall of valve seat 1, it is fixed
There is the link slot 1b1 opened up downwards from the interior upper end from of positioning region 1b on position portion 1b, and also have on the 1b of positioning region
There are the location hole 1b2 being opened on the madial wall of positioning region 1b, location hole 1b2 to be connected with link slot 1b1.Positive stop strip 6 is cut
Face is rounded, and the lower end of positive stop strip 6 is the third bending part 6c bending into location hole 1b2, and also has second on positive stop strip 6
The bending part 6b and vertical interconnecting piece 6d that third bending part 6c is connected with the second bending part 6b, third bending part 6c, it erects
Positioning recess 6e, vertical interconnecting piece 6d are formed between direct-connected socket part 6d and the second bending part 6b to be located in link slot 1b1 and fixed
Position portion 1b is caught in positioning recess 6e.By above-mentioned setting, the lower end height of positive stop strip 6 can be made to be fixed, but be in energy
The state enough to swing.
Original state, bonnet 4 remain stationary as, and the first bending part 6a of 6 upper end of positive stop strip, which is located at, adjusts the first of channel 4h
At the 4h1 of position, height highest of the bonnet 4 relative to spool 3, the decrement minimum of pressure spring 5, pressure spring 5 are instead made at this time
Also just minimum with the elastic force on spool 3, that is, the pressure value set is minimum.
When needing to adjust setup pressure value, press the elastic force that bonnet 4 makes bonnet 4 overcome pressure spring 5 act on and to moving down
It is dynamic, due to it is initial when 6 upper end of positive stop strip the first bending part 6a be located at and adjust the places first position 4h1 of channel 4h, and adjust and lead to
The first position 4h1 of road 4h is located in the face that one 4g1 of guide surface is projected to underface, one 4g1 of guide surface and two 4g2 of guide surface it
Between distance gradually increase from bottom to up, therefore when bonnet 4 moves down, can be such that the first bending part 6a of 6 upper end of positive stop strip is adjusting
It is moved upwards along one 4g1 of guide surface in section channel 4h.After above moving to the peak of one 4g1 of guide surface, due to positive stop strip 6
Lower end is positioned by valve seat 1, therefore the first bending part 6a can be become along the upper ends limited block 4g from moving up in guide surface one
The transverse movement of inner wall between two 4g2 of 4g1 and guide surface.And just lateral fortune is become from moving upwards in the first bending part 6a
When dynamic, the generation of patter a sound is had, this is by the intersection point institute of the side wall of the peak and upper ends limited block 4g of one 4g1 of guide surface
The phenomenon that stopper section 4g4 of formation is caused.Hand is unclamped at this time, bonnet 4 can pressure spring 5 elastic force effect under again on
Lift, and the first bending part 6a then can continue transverse movement along the upper end side wall of limited block 4g and be eventually held in limit notch
The inner wall of 4g3 and opposite adjusting cavity 4f is formed by the 4h2 of the second position.The propradation of bonnet 4 is thus by the first bending
Portion 6a is prevented and is stopped rising, and in this state, the height of bonnet 4 will be less than the original state of bonnet 4, this also means that tune
Pressing spring 5 compared to it is initial when be further compressed, elastic force of 5 reaction of pressure spring on spool 3 also just increase, to
It is achieved that the adjusting to the pressure value of setting.
When pressing bonnet 4 again, the first bending part 6a is detached from out of limit notch 4g3, and from adjust channel 4h second
Position 4h2 continues on the side wall transverse movement of the upper ends limited block 4g.When the first bending part 6a transverse shiftings pass through guide surface two
When the stopper section 4g4 constituted with the intersection point of the side wall of the upper ends limited block 4g at the peak of 4g2, the first bending part 6a and limit
Patter a sound can be sent out between block 4g again, at this time again by hand unclamp make bonnet 4 pressure spring 5 elastic force effect under on
It moves, the first bending part 6a can be moved down along two 4g2 of guide surface and finally be fallen back to the first position 4h1 for adjusting channel 4h
Place.
For rotating regulation type, although being all to realize setting by way of changing pressure spring 5 by decrement
Pressure value adjusting, but this limiting valve of pressure cooker is to realize the quilt of pressure spring 5 using the setting height for changing bonnet 4
The adjusting of decrement, and the setting height of bonnet 4 is the first bending part 6a and limited block 4g and tune by 6 upper end of positive stop strip
What the cooperation of section channel 4h was determined, while a height of bonnet 4 has corresponded to a decrement of pressure spring 5, therefore only
The position of the limit notch 4g3 on limited block 4g need to be designed according to the elastic force that pressure spring 5 acts on spool 3 under each state
To determine the second position 4h2 adjusted on the 4h of channel, you can realize accurately controlling for the pressure value set needed for pressure cooker.
Embodiment two
The present embodiment is essentially identical with the structure and principle of embodiment one, the difference is that：In the present embodiment, it limits
The upper ends block 4g have at least two limits opposite with the inner wall of adjusting cavity 4f between one 4g1 of guide surface and two 4g2 of guide surface
Recess 4g3, the height of each limit notch 4g3 are all different, between each limit notch 4g3 and the inner wall of opposite adjusting cavity 4f
Form the position adjusted on the 4h of channel.It is set as at least two, and each limit notch 4g3 in the quantity of limit notch 4g3
Height be all different, primarily to increase setting pressure value flexible adjustment, realize the multi gear position of setup pressure value
It adjusts.
Embodiment three
A kind of limiting valve of pressure cooker in pressure cooker, including embodiment one or embodiment two.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of limiting valve of pressure cooker, including valve seat (1), exhaust pipe (2) and can be moved up and down relative to valve seat (1)
Spool (3) and bonnet (4), are equipped with pressure spring (5), and spool (3) is in pressure spring (5) between spool (3) and bonnet (4)
The lower sealing exhaust pipe (2) of effect, which is characterized in that the bonnet (4), which is equipped with, adjusts channel (4h), adjusts on channel (4h)
With the different first position of height (4h1) and the second position (4h2), and bonnet (4) is in the first position for adjusting channel (4h)
It is equipped with stopper section (4g4) between (4h1) and the second position (4h2), which further includes positive stop strip (6), positive stop strip
(6) lower end is positioned on valve seat (1), and the upper end of positive stop strip (6), which is stuck in, to be adjusted in channel (4h) and can adjust channel (4h)
First position (4h1) or the second position (4h2) are inside moved to, and when the upper end of positive stop strip (6) is at first position (4h1) and second
Position (4h2) can drive bonnet (4) to move to compression or release pressure spring (5) when moving.
2. limiting valve of pressure cooker according to claim 1, which is characterized in that described bonnet (4) side has recessed
Adjusting cavity (4f), and bonnet (4) is equipped with limited block (4g), the limited block (4g) and adjusting cavity (4f) in adjusting cavity (4f)
Inner wall between form above-mentioned adjusting channel (4h), and formed and adjusted between the lower end of limited block (4g) and the inner wall of adjusting cavity (4f)
The first position (4h1) for saving channel (4h) forms between the upper end and the inner wall of adjusting cavity (4f) of limited block (4g) and adjusts channel
The second position (4h2) of (4h), the upper end of the positive stop strip (6) are to bend into the first bending part adjusted in channel (4h)
(6a)。
3. limiting valve of pressure cooker according to claim 2, which is characterized in that the limited block (4g) includes guide surface one
(4g1), guide surface two (4g2) and the limit notch (4g3) for being located at the upper end limited block (4g) side wall, the limit notch
(4g3) is located between guide surface one (4g1) and guide surface two (4g2), and between guide surface one (4g1) and guide surface two (4g2)
Distance from guide surface one (4g1) at the limit notch (4g3) to far from being gradually reduced at limit notch (4g3), and limit
The second position (4h2) of formation adjusting channel (4h) between recess (4g3) and the inner wall of opposite adjusting cavity (4f), described first
Position (4h1) is located in the face that guide surface one (4g1) is projected to underface, and the peak and limited block of guide surface one (4g1)
The equal structure of intersection point of the intersection point of the side wall of the upper end (4g) and the peak of guide surface two (4g2) and the side wall of the upper end limited block (4g)
At stopper section (4g4).
4. limiting valve of pressure cooker according to claim 1, which is characterized in that have on the inner wall of the valve seat (1) convex
The upper table of the positioning region (1b) gone out, positioning region (1b) offers link slot (1b1) and is offered on positioning region (1b) downwards
The lower end of the location hole (1b2) being connected with link slot (1b1), the positive stop strip (6) passes through the link slot (1b1) solid afterwards
Due in the location hole (1b2).
5. limiting valve of pressure cooker according to claim 1, which is characterized in that the lower end of the positive stop strip (6) includes the
Three bending parts (6c), vertical interconnecting piece (6d) and the second bending part (6b), and third bending part (6c), vertical interconnecting piece (6d)
And second form positioning recess (6e) between bending part (6b), third bending part (6c) is inserted into location hole (1b2), connects vertically
Socket part (6d) is located in link slot (1b1) and positioning region (1b) is caught in positioning recess (6e).
6. limiting valve of pressure cooker according to claim 1, which is characterized in that the spool (3) is located in bonnet (4),
Described spool (3) lower end outside have annular convex shoulder (3c), spool (3) at the outer rim of annular convex shoulder (3c) have it is several to
The arc interconnecting piece (3d) of upper protrusion has provided locating slot (4d2) on bonnet (4) side wall, the opposite arc with the locating slot (4d2)
There is the locating piece (3d1) of protrusion, locating piece (3d1) to be located in locating slot (4d2) and fixed on the outside of the upper end of shape interconnecting piece (3d)
Position block (3d1) can move up and down in locating slot (4d2).
7. according to any limiting valve of pressure cooker in claim 1 to 6, which is characterized in that the spool (3) is cylindrical in shape
And be sleeved on exhaust pipe (2), the pressure spring (5) is sleeved on spool (3), and one end of pressure spring (5) acts on ring
On shape convex shoulder (3c), the other end of pressure spring (5) acts on bonnet (4) bottom.
8. limiting valve of pressure cooker according to claim 1 or 6, which is characterized in that the inner wall of the bonnet (4), which has, leads
To item (4d1), guide channel (3e) is formed between two adjacent arc interconnecting pieces (3d), gib block (4d1) is located at guide channel
In (3e).
9. limiting valve of pressure cooker according to claim 1, which is characterized in that described valve seat (1) side has perforative
Window (1a) is connected, the outside of bonnet (4) has the crotch (4e) of protrusion, and crotch (4e) is located in connection window (1a) and crotch (4e)
It can move up and down in connection window (1a).
10. a kind of pressure cooker, which is characterized in that the pressure cooker includes pressure cooker as described in any one of claims 1-9
Pressure limiting valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710323008.5A CN106923660B (en) | 2017-05-09 | 2017-05-09 | A kind of limiting valve of pressure cooker and pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710323008.5A CN106923660B (en) | 2017-05-09 | 2017-05-09 | A kind of limiting valve of pressure cooker and pressure cooker |
Publications (2)
| Publication Number | Publication Date |
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| CN106923660A CN106923660A (en) | 2017-07-07 |
| CN106923660B true CN106923660B (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710323008.5A Active CN106923660B (en) | 2017-05-09 | 2017-05-09 | A kind of limiting valve of pressure cooker and pressure cooker |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143737A1 (en) * | 2020-01-17 | 2021-07-22 | 佛山市顺德区美的电热电器制造有限公司 | Cover, cover assembly, pressure limiting valve, and cooking device |
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| JP2006006583A (en) * | 2004-06-25 | 2006-01-12 | Nikkei Products Co Ltd | Pressure cooker |
| CN2807997Y (en) * | 2005-06-10 | 2006-08-23 | 浙江苏泊尔炊具股份有限公司 | Adjustable pressure cooker pressure-limiting valve |
| CN201052080Y (en) * | 2007-07-04 | 2008-04-30 | 应展 | Display pressure regulator valve for domestic pressure cooker |
| CN205923732U (en) * | 2016-04-08 | 2017-02-08 | 佛山市高明俊品金属制品有限公司 | Voltage limiting valve and pressure cooker with adjustable |
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| EP1942292A1 (en) * | 2004-11-09 | 2008-07-09 | Reutter GmbH | Security lock for containers for household devices under steam pressure |
| CN2766717Y (en) * | 2005-02-05 | 2006-03-29 | 浙江苏泊尔炊具股份有限公司 | Pressure-limiting valve of pressure cooker |
| KR101049907B1 (en) * | 2008-09-04 | 2011-07-15 | 유재형 | Pressure valve with improved pressure display and pressure relief |
| KR101061495B1 (en) * | 2009-08-19 | 2011-09-01 | 주식회사 피엔풍년 | Pressure regulating valve |
| CN102727076A (en) * | 2011-03-31 | 2012-10-17 | 杭州海善制药设备有限公司 | Adjustable pressure-limiting valve for pressure cooker |
| CN202567768U (en) * | 2011-10-26 | 2012-12-05 | 广东中宝炊具制品有限公司 | Multistage pressure adjustable spring type pressure limiting valve and pressure cooker |
| CN202436846U (en) * | 2012-02-29 | 2012-09-19 | 邓有成 | Adjustable pressure limiting valve |
| CN207532292U (en) * | 2017-05-09 | 2018-06-26 | 浙江苏泊尔股份有限公司 | A kind of limiting valve of pressure cooker and pressure cooker |
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2017
- 2017-05-09 CN CN201710323008.5A patent/CN106923660B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006006583A (en) * | 2004-06-25 | 2006-01-12 | Nikkei Products Co Ltd | Pressure cooker |
| CN2807997Y (en) * | 2005-06-10 | 2006-08-23 | 浙江苏泊尔炊具股份有限公司 | Adjustable pressure cooker pressure-limiting valve |
| CN201052080Y (en) * | 2007-07-04 | 2008-04-30 | 应展 | Display pressure regulator valve for domestic pressure cooker |
| CN205923732U (en) * | 2016-04-08 | 2017-02-08 | 佛山市高明俊品金属制品有限公司 | Voltage limiting valve and pressure cooker with adjustable |
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|---|---|
| CN106923660A (en) | 2017-07-07 |
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Effective date of registration: 20211214 Address after: 317604 No.99 Linpu Road, Wuyi village, Damaiyu street, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Zhejiang futengbao household products Co.,Ltd. Address before: 317604 Yuhuan County, Taizhou, Zhejiang Province Patentee before: Zhejiang Supor Co.,Ltd. |