CN106923660A - 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
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- CN106923660A CN106923660A CN201710323008.5A CN201710323008A CN106923660A CN 106923660 A CN106923660 A CN 106923660A CN 201710323008 A CN201710323008 A CN 201710323008A CN 106923660 A CN106923660 A CN 106923660A
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- bonnet
- pressure cooker
- valve
- pressure
- regulation
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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
The present invention provides a kind of limiting valve of pressure cooker and pressure cooker, belongs to cooker field.It solves the problems, such as that existing limiting valve of pressure cooker causes control accuracy low by the way of regulation is rotated.It includes valve seat, blast pipe and the valve element and bonnet that can be moved up and down relative to valve seat, pressure spring is provided between valve element and bonnet, and valve element sealing exhaust pipe in the presence of pressure spring, bonnet is provided with regulation passage, regulation passage includes the different first position of height and the second place, and bonnet is provided with stopper section between the first position of regulation passage and the second place, the limiting valve of pressure cooker also includes positive stop strip, the lower end of positive stop strip is positioned on valve seat, the upper end of positive stop strip is stuck in regulation passage and can move to first position or the second place in regulation passage, and bonnet can be driven compression or release pressure spring is moved to when the upper end of positive stop strip is moved between the first position and the second position.It has the advantages that precise control can be carried out to the pressure value for setting.
Description
Technical field
The present invention relates to cooker field, it is 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 be able to make pressure cooker interior energy reach certain air pressure, and can outwards be arranged when air pressure exceedes safe range in pot
Gas, generally can all set a pressure limiting valve on pot cover.Existing pressure limiting valve is to be pressed on pressure cooker cover by the weight of its own
Blast pipe on realize pressure-limiting function.But using pressure cooker when, boil a variety of foods can make it is required in pot
Pressure can be different, and common method is one weight of superposition on pressure limiting valve, and weight is increased by weight, and making in pot can be with
Reach pressure higher.But the pressure limiting valve one side structure adopted in this way is more complicated, and another aspect weight is and limit
What pressure valve body was separate, weight is easily lost and influences the normal of pressure cooker to use during long-term use.
In order to solve the above problems, in the market occurs in that the limiting valve of pressure cooker of another structure, and this is also current pressure
The most widely used limiting valve of pressure cooker on pot, it is generally arranged at the blast pipe of pressure cooker lid, is connected on pot cover
One valve seat, blast pipe is in the center of valve seat, there is a valve handle and valve element in valve seat, and valve handle is connected with valve seat, valve element
Between valve handle and pot cover, and the lower end of valve element is pressed on blast pipe, and a spring, valve seat are provided between valve element and valve handle
In be provided with some steam vents, valve element is pressed in by the elastic force of spring sealing is kept on blast pipe, the medial surface of valve seat be provided with to
A few step, is provided with stopper on 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 bottom is blocked in the position of step, that is, change the upper-lower position of valve handle, and because the position of valve element maintains static, then just
The distance between valve handle and valve element can be changed, while again because spring is arranged between valve handle and valve element, therefore spring is pressed
Contracting amount will be changed so that elastic force of the spring effect on valve element changes, the pressure set points of pressure cooker also therewith by
Change.
Although above-mentioned limiting valve of pressure cooker realizes pressure adjusting function, it there is also some shortcomings part：Pressure
The regulation of power setting value is realized by rotating valve handle, and the rotation to valve handle is not provided with the pressure limiting valve yet
The controlling organization that amount is limited, this results in subjective will of the amount of spin of valve handle completely by user in use and determines
Determined, then just occur that the regulation of pressure set points is difficult to be accurately controlled.
The content of the invention
The purpose of the present invention is directed to the above mentioned problem of prior art presence, it is proposed that a kind of limiting valve of pressure cooker and pressure
Pot, technical problem to be solved is how to improve pressure controlled control accuracy.
The purpose of the present invention can be realized by following technical proposal：
A kind of limiting valve of pressure cooker, including valve seat, blast pipe and the valve element that can be moved up and down relative to valve seat with
Bonnet, is provided with pressure spring, and valve element sealing exhaust pipe in the presence of pressure spring between valve element and bonnet, its feature exists
In described bonnet is provided with regulation passage, and regulation passage includes the different first position of height and the second place, and bonnet exists
Adjust and be provided with stopper section between the first position of passage and the second place, the limiting valve of pressure cooker also includes positive stop strip, positive stop strip
Lower end be positioned on valve seat, the upper end of positive stop strip be stuck in regulation passage and first position can be moved in regulation passage or
The second place, and can be driven when the upper end of positive stop strip is moved between the first position and the second position bonnet move to compression or
Release pressure spring.
Original state, pressure spring one end acts on and make on valve element valve element and block blast pipe, the other end of pressure spring
Act on bonnet, while the upper end of positive stop strip is stuck in regulation passage, bonnet is relatively fixed with valve seat in this condition, but uses
Hand can make bonnet overcome the elastic force of pressure spring to act on and move down when pressing bonnet.Need to adjust the setting pressure in pot
During 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 regulation
Passage and regulation passage first position and the second place between move.Due to first position and the second place height not
Together, therefore when the upper end of positive stop strip is moved between the first location and the second location bonnet will be made to compress or discharge pressure regulation bullet
Moved between the state of spring.Bonnet is provided with stopper section between the first position of regulation passage and the second place, in stopper section
Effect is lower can to make the upper end of positive stop strip be maintained at first position or the second place when user unclamps hand, to fix bonnet
Setting height.
This limiting valve of pressure cooker is compressed by changing the setting height of bonnet or discharges pressure spring, the setting of bonnet
Height is again to be engaged what is determined with the first position or the second place that adjust in passage by positive stop strip upper end, and on bonnet the
One position or the second place have corresponded to a decrement of pressure spring respectively again, therefore only need the setting pressure according to required for
Value designs the height of first position and the second place, you can realize the precise control of the pressure value of setting needed for pressure cooker.
In above-mentioned limiting valve of pressure cooker, described bonnet sidepiece has recessed regulation chamber, and bonnet in regulation chamber
Inside be provided with limited block, form above-mentioned regulation passage between described limited block and the inwall in regulation chamber, and the lower end of limited block with
The first position of regulation passage is formed between the inwall in regulation chamber, is formed between the upper end of limited block and the inwall in regulation chamber and adjusted
The second place of passage, the upper end of described positive stop strip is the first kink bending into regulation passage.
The first position of regulation passage is formed between the lower end of limited block and the inwall in regulation chamber, it means that first position
In compared with low spot, the second place of regulation passage is formed between the upper end of limited block and the inwall in regulation chamber, it means that second
Position is in higher point.So when the upper end of limited block moves to the second place from first position, bonnet is in compression pressure regulation
The state of spring；The upper end of limited block from the second place move to first position when, bonnet be in release pressure spring state.
In above-mentioned limiting valve of pressure cooker, described limited block includes spigot surface one, spigot surface two and positioned at spacing
The limit notch of block upper end side wall, the limit notch is located between spigot surface one and spigot surface two, and spigot surface one and guiding
The distance between face two is gradually reduced at the limit notch from spigot surface one at away from limit notch, spigot 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 spigot surface one and is oriented to
The second place of regulation passage, described first are formed between face two, and between limit notch and the inwall in relative regulation chamber
In the face projected to underface setting in spigot surface one, and the peak of spigot surface one and the intersection point of the side wall of limited block upper end with
And the peak of spigot surface two constitutes stopper section with the intersection point of the side wall of limited block upper end.
Spigot surface one and spigot surface two are set on limited block, due to the distance between spigot surface one and spigot surface two from it is lower to
On gradually increase, then can just make when bonnet is pressed the first kink of positive stop strip upper end along it is one of be oriented to towards
Upper motion, and at the upper peak for moving on to the spigot surface after move to again between spigot surface one and spigot surface two second
In position.And when bonnet is pressed again, the first kink is deviate from from the second place and is moved to another spigot surface most
The first position of regulation passage is moved downwardly at high point and then further along the spigot surface.
By the setting of spigot surface one and spigot surface two so that the first kink can be when bonnet be pressed smoothly along it
In one be oriented to motion upwardly and accurately drop into the second place, or when bonnet is pressed again it is smooth from the second place
Interior abjection simultaneously accurately falls back to the first position for adjusting passage along another guiding downwards, simultaneously because the second place
Height can act on the elastic force on valve element to be designed according to pressure spring under each state, therefore also just can smoothly ensure
The precise control of setup pressure value.And the intersection point and guiding of the side wall of the peak due to spigot surface one and limited block upper end
The peak in face two constitutes stopper section with the intersection point of the side wall of limited block upper end, then the first kink of positive stop strip is either
The second place is moved to from first position or move go back to first position from the second place, all can be by only during motion
Stopper and there is patter sound, user can in time unclamp hand as signal, with ensure positive stop strip first bending
Portion can be accurately maintained in first position or the second place.
By limited block upper end side wall set limit notch, then when the first kink of positive stop strip move to it is spacing
When at the limit notch on block, user unclamps hand, the first kink of positive stop strip just can be stuck in naturally limit notch with it is relative
Regulation chamber inwall between, using this position as the second place, the first kink of positive stop strip can be made stably to be stuck in the
Nonvoluntary play in two positions.The relation of the lowest part and first position that adjust passage is set to be located at spigot surface one to just
In the face of lower section projection, primarily to the upper end of positive stop strip and the phase of spigot surface one can just be made when just starting to press bonnet
Contact, can upwards be moved along spigot surface one and smoothly be maintained at the second place and pressed to reach to set with the upper end for ensuring positive stop strip
The precise control of force value.
In above-mentioned limiting valve of pressure cooker, there is the location division of protrusion on the inwall of described valve seat, location division it is upper
Surface offers downwards link slot and the location hole being connected with link slot is offered on location division, under described positive stop strip
Hold and be fixed in the location hole through after the link slot.
When the lower end of positive stop strip is connected on valve seat, the lower end of positive stop strip is first passed vertically through into downwards link slot, so
Bend again afterwards in insertion location hole, 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 described positive stop strip include the 3rd kink, vertical connecting portion with
And second kink, and the 3rd kink, positioning recess is formed between vertical connecting portion and the second kink, the 3rd kink
In insertion location hole, vertical connecting portion is snapped in positioning recess in link slot and location division.
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
3rd kink is bent into location hole, so that location division snaps onto the 3rd kink, vertical connecting portion and the second bending
In the positioning recess formed between portion.
The lower end of positive stop strip is set highly to be positioned by the way that the 3rd kink is inserted in location hole, but simultaneously in the 3rd bending
Portion can make the upper end of positive stop strip be swung by the center of circle of location hole after being inserted into location hole, and such structure setting makes
The upper end for obtaining positive stop strip can either move up and down along the side wall of limited block, can be limited when peak is moved upward to again
The positioning of position bar lower end is limited and does transverse movement along limited block upper end side wall, it is ensured that positive stop strip upper end smoothly can move ground
Move to compress or discharge pressure spring between the first position of regulation passage and the second place, to realize setup pressure value
Precise control.
In above-mentioned limiting valve of pressure cooker, described valve element is located in bonnet, and described valve element lower end outside has ring
Shape convex shoulder, valve element has some arc connecting portions for raising up at the outer rim of annular convex shoulder, and it is fixed to have been provided in bonnet side wall
Position groove, the upper end outside of the arc connecting portion relative with the locating slot has the locating piece of protrusion, and locating piece is located in 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 valve element, locating slot again can be right
The circumferential deflection of locating piece forms spacing, occurs rotating during preventing bonnet from being moved up and down relative to valve seat, to ensure setting pressure
The accurate control of force value.
In above-mentioned limiting valve of pressure cooker, described valve element is cylindrical in shape and is enclosed within blast pipe, described pressure spring
It is enclosed within outside valve element, and one end of pressure spring is acted on annular convex shoulder, the other end of pressure spring acts on bonnet bottom.
Because bonnet is fixed in the case where being acted on without external force relative to valve seat, then the elastic force of pressure spring will be pressed in valve element
Making valve element on annular convex shoulder will be vented the seal of tube, and when exhaust is needed, valve element can be overcome pressure spring by the gas in pot
Act on and move up, so that blast pipe is opened and realizes exhaust；After exhaust terminates, valve element is again in the effect of pressure spring
Under be sealed on blast pipe.
In above-mentioned limiting valve of pressure cooker, the inwall of bonnet has gib block, shape between two adjacent arc connecting portions
Into guide channel, gib block is located in guide channel.
Axial movement by the cooperation of gib block and guide channel to bonnet is oriented to, to ensure that bonnet stably enters
Row is axially moved.
In above-mentioned limiting valve of pressure cooker, described valve seat sidepiece has the connection window for running through, 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 spacing, occurs rotating during preventing bonnet from being moved up and down relative to valve seat, makes the of positive stop strip upper end
One kink can be dropped into smoothly in the limit notch of limited block upper end, to ensure the accurate control of setup pressure value.
A kind of pressure cooker, the pressure cooker includes above-mentioned limiting valve of pressure cooker.
Compared with prior art, this limiting valve of pressure cooker is compressed by changing the setting height of bonnet or discharges pressure regulation
Spring, the setting height of bonnet is engaged and determined with the first position in regulation passage or the second place by positive stop strip upper end
, and the first position or the second place on bonnet have corresponded to a decrement of pressure spring respectively, therefore only need basis
Required setup pressure value designs the height of first position and the second place, you can realize the pressure of setting needed for pressure cooker
The precise control of value.
Brief 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 representation.
Fig. 6 is the partial enlarged drawing in Fig. 2.
Fig. 7 is the partial enlarged drawing 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 representation of valve element 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 in regulation passage 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, location division；1b1, link slot；1b2, location hole；2nd, blast pipe；2a, row
Stomata；3rd, valve element；3a, connecting pin；3b, seal head；3c, annular convex shoulder；3d, arc connecting portion；3d1, locating piece；3e, guiding
Passage；4th, bonnet；4a, cavity；4b, through hole；4c, ring-type protrusion one；4d, ring-type protrusion two；4d1, gib block；4d2, positioning
Groove；4e, crotch；4f, regulation chamber；4g, limited block；4g1, spigot surface one；4g2, spigot surface two；4g3, limit notch；4g4, only
Stopper；4h, regulation passage；4h1, first position；4h2, the second place；5th, pressure spring；6th, positive stop strip；6a, the first kink；
6b, the second kink；6c, the 3rd kink；6d, vertical connecting portion；6e, positioning recess.
Specific embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Embodiment one
As Figure 1-Figure 4, a kind of limiting valve of pressure cooker, including tubular valve seat 1, the upper end open of valve seat 1, valve seat
Blast pipe 2 is provided with 1, there is spacing shoulder block on blast pipe 2, spacing shoulder block leans with the bottom wall of inner cavity of valve seat 1, blast pipe 2
Lower end pass the bottom of valve seat 1, and external screw thread is provided with the blast pipe 2 for passing the bottom of valve seat 1, when in use, by exhaust
External screw thread on pipe 2 is fixed on the pot cover of pressure cooker.
As shown in Fig. 2, Fig. 3 and Fig. 9, it is provided with the valve element 3 of hollow sleeve tubular in valve seat 1, valve element 3 is enclosed within valve seat 1, valve
The top of core 3 is provided with seal head 3b, and the outside of seal head 3b is circumferentially connected with some connecting pin 3a, and seal head 3b and valve element
3 upper end is connected by each connecting pin 3a, and the lower end of seal head 3b is tapered, and steam vent 2a has been provided on blast pipe 2, sealing
The lower end of head 3b is resisted against in the upper port of steam vent 2a and seals steam vent 2a.The top of valve element 3 is provided 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 valve element 3
One end withstand on bonnet 4, the other end that the lower end outside of valve element 3 has annular convex shoulder 3c, pressure spring 5 is pressed in annular convex shoulder
On 3c, the elastic force of pressure spring 5 pushes valve element 3 makes the seal head 3b on valve element 3 to be vented all the time in the presence of without external force
The upper port sealing of pipe 2.
As shown in Fig. 2, Fig. 3 and Figure 10, the center that the bottom of bonnet 4 has cavity 4a, bonnet 4 has through hole 4b, valve
There is cap 4 downward ring-type to protrude a 4c at the roof of cavity 4a, and the through hole 4b on bonnet 4 protrudes the center of a 4c with ring-type
Just to connection, the upper end of valve element 3 is located at ring-type and protrudes in a 4c in hole, and the upper end of pressure spring 5 withstands on the lower end that ring-type protrudes a 4c
On face.Also there is bonnet 4 downward ring-type to protrude two 4d at the roof of cavity 4a, and ring-type protrudes a 4c and is located at ring-type protrusion two
In 4d, and the lower end of two 4d of ring-type protrusion is stretched out outside the lower end of one 4c of ring-type protrusion.
As shown in Figure 9 and Figure 10, valve element 3 has some arc connecting portions for raising up at the outer rim of annular convex shoulder 3c
3d, forms guide channel 3e between two adjacent arc connecting portion 3d, the ring-type protruded positioned at ring-type outside a 4c protrudes two 4d's
Circumferentially arranged with some gib block 4d1 on madial wall, gib block 4d1 is located in guide channel 3e.And positioned at ring-type protrusion one
The sidepiece that ring-type outside 4c protrudes two 4d is provided with locating slot 4d2, outside the upper end of the arc connecting portion 3d relative 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, the lower end of bonnet 4 is located in valve seat 1, and the upper end of bonnet 4 is stretched out outside valve seat 1, the sidepiece of valve seat 1 tool
There is the connection window 1a for running through, the outside of bonnet 4 has the crotch 4e of protrusion, crotch 4e is made 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 be connected at window 1a
Side wall leans, and thus bonnet 4 forms circumferentially fixed with valve seat 1, and connects the setting that height is more than crotch 4e that opens up of window 1a
Highly, lower madial wall of the lower end of crotch 4e higher than valve seat 1 at connection window 1a, bonnet 4 is thus, it is possible to relative to valve seat about 1
Motion.
There is regulation passage 4h as shown in Fig. 2, Fig. 4, Fig. 5, Fig. 7, Figure 11 and Figure 12, on bonnet 4, have on regulation passage 4h
There are highly different first position 4h1 and second place 4h1, and bonnet 4 in the first position 4h1 and second of regulation passage 4h
Putting has stopper section 4g4 between 4h1.Positive stop strip 6 is provided between bonnet 4 and valve seat 1, the sidepiece of bonnet 4 has recessed regulation chamber
4f, bonnet 4 forms regulation passage 4h between having the inwall of limited block 4g, limited block 4g and regulation chamber 4f in regulation chamber 4f.
Have the 4g1 of spigot surface one mutually overlap with the minimum point of the 4g2 of spigot surface two with spigot surface two 4g2, the 4g1 of spigot surface one on limited block 4g
Close, and the distance between the 4g1 of the spigot surface one and 4g2 of spigot surface two gradually increases from bottom to up.Adjust the lowest part and limit of chamber 4f
It is the first position 4h1 of regulation passage 4h between the lower end of position block 4g, and the first position 4h1 of regulation passage 4h is located at spigot 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 relative
Regulation chamber 4f inwall between form the second place 4h2, peak and the limited block 4g of the 4g1 of spigot surface one of regulation passage 4h
The intersection point of the side wall of upper end and the peak of the 4g2 of spigot surface two constitute stopper section with the intersection point of the side wall of limited block 4g upper ends
4g4.The lower end of positive stop strip 6 is positioned on valve seat 1, and the upper end of positive stop strip 6 is the first kink 6a bending into regulation passage 4h.
As shown in Fig. 6, Fig. 8 and Figure 12, in the present embodiment, there is the location division 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 at of location division 1b on position portion 1b, and also have on the 1b of location division
There are the location hole 1b2 being opened on the madial wall of location division 1b, location hole 1b2 to be connected with link slot 1b1.Positive stop strip 6 cut
Face is rounded, and the lower end of positive stop strip 6 is the 3rd kink 6c bending into location hole 1b2, and also has second on positive stop strip 6
It is the kink 6b and vertical connecting portion 6d that the 3rd kink 6c is connected with the second kink 6b, the 3rd kink 6c, perpendicular
Positioning recess 6e, vertical connecting portion 6d are formed between direct-connected socket part 6d and the second kink 6b and is located in link slot 1b1 and fixed
Position portion 1b is snapped in positioning recess 6e.By above-mentioned setting, can be fixed the lower end height of positive stop strip 6, but in energy
The state for enough swinging.
Original state, bonnet 4 is remained stationary as, and the first kink 6a of the upper end of positive stop strip 6 is located at the first of regulation passage 4h
At the 4h1 of position, now bonnet 4 is relative to the height highest of valve element 3, and the decrement of pressure spring 5 is minimum, and pressure spring 5 is instead made
Also just minimum with the elastic force on valve element 3, that is, the pressure value for setting is minimum.
When needing regulation setup pressure value, press bonnet 4 make bonnet 4 overcome the elastic force of pressure spring 5 act on and to moving down
It is dynamic, due to it is initial when the upper end of positive stop strip 6 the first kink 6a be located at the first position 4h1 places of regulation passage 4h, and regulation is led to
The first position 4h1 of road 4h is located in the face that the 4g1 of spigot surface one project to underface, the 4g1 of the spigot surface one and 4g2 of spigot surface two it
Between distance gradually increase from bottom to up, therefore when moving down the first kink 6a of the upper end of positive stop strip 6 can adjust bonnet 4
Moved upwards along the 4g1 of spigot surface one in section passage 4h.After the peak of the 4g1 of spigot surface one is above moved to, due to positive stop strip 6
Lower end is positioned by valve seat 1, therefore the first kink 6a can be changed into along limited block 4g upper ends in spigot surface one from moving up
The transverse movement of the inwall between 4g1 and the 4g2 of spigot surface two.And just it is changed into horizontal fortune from motion upwards in the first kink 6a
When dynamic, the generation of patter a sound is had, this is the intersection point institute of the peak by the 4g1 of spigot surface one and the side wall of limited block 4g upper ends
The phenomenon that the stopper section 4g4 of formation is caused.Now hand is unclamped, bonnet 4 can again be gone up under the effect of the elastic force of pressure spring 5
Lift, and the first kink 6a then along the continuation transverse movement of the upper end side wall of limited block 4g and can be eventually held in limit notch
At the second place 4h2 that 4g3 is formed with the inwall of relative regulation chamber 4f.The propradation of bonnet 4 is thus by the first bending
Portion 6a is prevented and is stopped rising, and in this condition, the height of bonnet 4 will be less than the original state of bonnet 4, and this also means that tune
Pressing spring 5 compared to it is initial when be further compressed, elastic force of the reaction of pressure spring 5 on valve element 3 also just increase so that
It is achieved that the regulation to the pressure value for setting.
When pressing bonnet 4 again, the first kink 6a departs from from limit notch 4g3, and from the second of regulation passage 4h
Position 4h2 continues on the side wall transverse movement of limited block 4g upper ends.When the first kink 6a transverse shiftings are by spigot surface two
During the stopper section 4g4 constituted with the intersection point of the side wall of limited block 4g upper ends at the peak of 4g2, the first kink 6a with it is spacing
Patter a sound can be again sent between block 4g, now again by hand unclamp make bonnet 4 pressure spring 5 elastic force effect under on
Move, the first kink 6a can be moved down along the 4g2 of spigot surface two and finally be fallen back to the first position 4h1 of regulation passage 4h
Place.
For rotating regulation type, although be all that setting is realized by way of changing pressure spring 5 by decrement
Pressure value regulation, but this limiting valve of pressure cooker is the quilt that pressure spring 5 is realized using the setting height for changing bonnet 4
The regulation of decrement, and the setting height of bonnet 4 is by the first kink 6a and limited block 4g and tune of the upper end of positive stop strip 6
What the cooperation of section passage 4h was determined, while a height of bonnet 4 has corresponded to a decrement of pressure spring 5, therefore only
Need to act on the elastic force on valve element 3 according to pressure spring 5 under each state to design the position of the limit notch 4g3 on limited block 4g
To determine the second place 4h2 on regulation passage 4h, you can realize the precise control of the pressure value of setting needed for pressure cooker.
Embodiment two
The present embodiment is essentially identical with the structure and principle of embodiment one, and difference is：In the present embodiment, it is spacing
Block 4g upper ends have at least two with relative spacing of inwall for adjusting chamber 4f between the 4g1 of spigot surface one and the 4g2 of spigot surface two
Recess 4g3, the height of each limit notch 4g3 is differed, between each limit notch 4g3 and the inwall of relative regulation chamber 4f
Form a position on regulation passage 4h.At least two, and each limit notch 4g3 are set in the quantity of limit notch 4g3
Height differ, primarily to increase setting pressure value flexible adjustment, realize many gears of setup pressure value
Regulation.
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 to the spiritual explanation for example of the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from spirit of the invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of limiting valve of pressure cooker, including valve seat (1), blast pipe (2) and can be moved up and down relative to valve seat (1)
Valve element (3) and bonnet (4), are provided with pressure spring (5), and valve element (3) in pressure spring (5) between valve element (3) and bonnet (4)
The lower sealing exhaust pipe (2) of effect, it is characterised in that described bonnet (4) is provided with regulation passage (4h), in regulation passage (4h)
With the different first position of height (4h1) and the second place (4h2), and bonnet (4) is in the first position of regulation passage (4h)
Stopper section (4g4) is provided between (4h1) and the second place (4h2), the limiting valve of pressure cooker also 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) is stuck in regulation passage (4h) and can be in regulation passage (4h)
First position (4h1) or the second place (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, it is characterised in that described bonnet (4) sidepiece has recessed
Regulation chamber (4f), and bonnet (4) is provided with limited block (4g), described limited block (4g) and regulation chamber (4f) in regulation chamber (4f)
Inwall between form above-mentioned regulation passage (4h), and formed between the lower end of limited block (4g) and the inwall of regulation chamber (4f) and adjust
The first position (4h1) of section passage (4h), forms regulation passage between the upper end of limited block (4g) and the inwall of regulation chamber (4f)
The second place (4h2) of (4h), the upper end of described positive stop strip (6) is the first kink bending into regulation passage (4h)
(6a)。
3. limiting valve of pressure cooker according to claim 2, it is characterised in that described limited block (4g) includes spigot surface one
(4g1), spigot surface two (4g2) and the limit notch (4g3) positioned at limited block (4g) upper end side wall, the limit notch
(4g3) is located between spigot surface one (4g1) and spigot surface two (4g2), and between spigot surface one (4g1) and spigot surface two (4g2)
Distance be gradually reduced to away from limit notch (4g3) place from the limit notch (4g3) from spigot surface one (4g1), it is and spacing
The second place (4h2) of regulation passage (4h), described first are formed between recess (4g3) and the inwall in relative regulation chamber (4f)
Position (4h1) is located in the face that spigot surface one (4g1) is projected to underface, and spigot surface one (4g1) peak and limited block
The equal structure of intersection point of the side wall of the intersection point of the side wall of (4g) upper end and the peak of spigot surface two (4g2) and limited block (4g) upper end
Into stopper section (4g4).
4. limiting valve of pressure cooker according to claim 1, it is characterised in that have on the inwall of described valve seat (1) convex
The location division (1b) for going out, the upper table of location division (1b) offers link slot (1b1) and is offered on location division (1b) downwards
The location hole (1b2) being connected with link slot (1b1), the lower end of described positive stop strip (6) is solid afterwards through the link slot (1b1)
Due in the location hole (1b2).
5. limiting valve of pressure cooker according to claim 1, it is characterised in that the lower end of described positive stop strip (6) includes the
Three kinks (6c), vertical connecting portion (6d) and the second kink (6b), and the 3rd kink (6c), vertical connecting portion (6d)
And second form positioning recess (6e) between kink (6b), the 3rd kink (6c) is inserted in location hole (1b2), connected vertically
Socket part (6d) is located in link slot (1b1) and location division (1b) is snapped in positioning recess (6e).
6. limiting valve of pressure cooker according to claim 1, it is characterised in that described valve element (3) in bonnet (4),
Described valve element (3) lower end outside has an annular convex shoulder (3c), valve element (3) have at the outer rim of annular convex shoulder (3c) it is some to
Upper raised arc connecting portion (3d), has provided locating slot (4d2), the arc relative with the locating slot (4d2) on the wall of bonnet (4) side
The upper end outside of shape connecting portion (3d) has the locating piece (3d1) of protrusion, and locating piece (3d1) is located in locating slot (4d2) and fixed
Position block (3d1) can move up and down in locating slot (4d2).
7. according to any described limiting valve of pressure cooker in claim 1 to 6, it is characterised in that described valve element (3) is cylindrical in shape
And be enclosed within blast pipe (2), described pressure spring (5) is enclosed within valve element (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. the limiting valve of pressure cooker according to claim 1 or 6, it is characterised in that the inwall of described bonnet (4) has leads
To bar (4d1), guide channel (3e) is formed between two adjacent arc connecting portions (3d), gib block (4d1) is located at guide channel
In (3e).
9. limiting valve of pressure cooker according to claim 1, it is characterised in that described valve seat (1) sidepiece has what is run through
Connection window (1a), the outside of bonnet (4) has the crotch (4e) of protrusion, and crotch (4e) is located in connection window (1a) and crotch (4e)
Can be moved up and down in connection window (1a).
10. a kind of pressure cooker, it is characterised in that the pressure cooker includes the pressure cooker as described in claim 1-9 any one
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 |
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| Publication Number | Publication Date |
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| CN106923660A true CN106923660A (en) | 2017-07-07 |
| CN106923660B 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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| CN (1) | CN106923660B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| US20240260777A1 (en) * | 2021-06-14 | 2024-08-08 | Cuchen Co., Ltd | Cooking device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106923660B (en) | 2018-09-25 |
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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. |