CN105496185B - Pressure release valve, pot cover with same and electric pressure cooker - Google Patents
Pressure release valve, pot cover with same and electric pressure cooker Download PDFInfo
- Publication number
- CN105496185B CN105496185B CN201610094028.5A CN201610094028A CN105496185B CN 105496185 B CN105496185 B CN 105496185B CN 201610094028 A CN201610094028 A CN 201610094028A CN 105496185 B CN105496185 B CN 105496185B
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- Prior art keywords
- spool
- valve
- relief valve
- section
- pot cover
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- 238000010411 cooking Methods 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000006837 decompression Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000008439 repair process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- 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
- A47J27/092—Devices for automatically releasing pressure before opening
-
- 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
- A47J27/086—Pressure-cookers; Lids or locking devices specially adapted therefor with built-in heating means
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a pressure relief valve, which comprises a valve body and a valve core, wherein the valve core is assembled in the valve body in a sliding manner, and slides between a first position and a second position, wherein the pressure relief valve is closed when the valve core is positioned at the first position, and the pressure relief valve is opened when the valve core is positioned at the second position; the valve body is provided with an elastic limiting structure, the outer surface of the valve core is provided with a groove, and when the valve core is located at the second position, the elastic limiting structure is embedded into the groove. The pressure release valve can not automatically reset after pressure release, and can remind a user of overhauling a cooking appliance while ensuring the safety of the cooking appliance adopting the pressure release valve in the using process, so that the use safety of the user is ensured. The invention also discloses a cooker cover with the pressure release valve and an electric pressure cooker.
Description
Technical field
The present invention relates to cooking apparatus fields, and in particular to a kind of relief valve.The invention further relates to have the relief valve
Pot cover and electric pressure cooking saucepan.
Background technique
Currently, being generally provided on the pot cover of electric pressure cooking saucepan to guarantee the safety of electric pressure cooking saucepan during the cooking process
Safe pressure relief device, its role is to if the normal decompression protection device in pot has all failed, the pressure in pot cannot be normal
It overflows and lets out, pot inner pressure is caused to increase, then the safe pressure relief device will when the pressure increase in pot is to when being more than specified voltage limiting value
Take on last safeguard measure, the pressure in pot is discharged, prevents that pot internal cause pressure is excessive causes danger.
The safe pressure relief device of electric pressure cooking saucepan in the prior art is usually automatic reset pressure relief device.When pot inner pressure is super
When crossing specified voltage limiting value, which will be opened, high steam in pot is discharged, when pot inner pressure value is reduced to safe pressure
When within the scope of power, which will restore closed state automatically, if next time occur again pot inner pressure it is excessive when, still may be used
To play the role of pressure release.
But since this automatic reset pressure relief device is just acted as in the case where normal decompression protection device all fails
, and normal decompression protection device all fails, and shows the existing failure of electric pressure cooking saucepan or security risk, it is such as logical due to being vented
It cannot normally pressure release etc. in pot caused by the reasons such as road blocking.Obviously, this automatic reset pressure relief device and unresolved Voltage force
Failure or security risk existing for pot inside, and often make user ignore the failure or security risk after automatically reseting, with for
Electric pressure cooking saucepan still can normal use.If not excluding existing failure or security risk (such as corresponding maintenace point is sent to repair)
It continues to use, electric pressure cooking saucepan may be caused badly damaged, or even dangerous injury can be caused to user in use.
Summary of the invention
In view of the above-mentioned status of the prior art, the main purpose of the present invention is to provide a kind of relief valves, after pressure release
It can not automatically reset, and need hand-reset.The replaceable safe pressure relief device in the prior art of the relief valve, to prevent from having
The utensil of the relief valve continued there are failure or security risk using.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of relief valve comprising valve body and spool, the spool fit slidably in the valve body, and the spool exists
It is slided between first position and the second position, wherein the spool is in relief valve when first position and closes, the spool
The relief valve is opened when in the second position；Wherein, the valve body is equipped with elastic spacing structure, the outer surface of the spool
It is equipped with groove, when the spool is in the second position, the elastic spacing structure is embedded in the groove.
Preferably, the valve body includes valve seat and valve deck, and the valve deck is fixedly attached to the valve seat.
Preferably, the upper surface of the valve seat is equipped with location hole, and the valve deck is equipped with positioning column, and the positioning column is for filling
It is assigned in the location hole.
Preferably, the elastic spacing structure includes torsionspring, and the torsionspring has first overhanging section and second
Overhanging section, wherein described first overhanging section is fixed, and is resisted against to second overhanging section of compression the outer surface of the spool
On.
Preferably, the valve body is equipped with spring retention posts and the first spring detent, the torsionspring are covered in the bullet
On spring positioning column, described first overhanging section is stuck in the first spring detent.
Preferably, second spring detent is additionally provided on the valve body, second overhanging section of the outboard end is stuck in described
In two spring detents.
Preferably, the spool includes the first spool section and the second spool section, the first spool section and second valve
Core section is fixed together, and the groove is located in the first spool section.
Preferably, it is attached between the first spool section and the second spool section by screw thread.
Preferably, reset spring is arranged in the second spool section, one end of the reset spring is against described second
The lug boss being arranged in spool section, the stop configurations that the other end is arranged against the valve inner.
Preferably, the first spool section includes stage portion, and the first sealing ring is arranged in the first spool section, described
The valve chamber of valve body includes conical surface portion, and when the spool is in the first position, first sealing ring is pressed in the step
Between portion and the conical surface portion.
Another object of the present invention is to provide a kind of pot covers comprising mentioned-above relief valve.
Preferably, the relief valve is mounted on the inside of the pot cover.
Preferably, the pot cover successively includes cover, inner cover, steel lid and heat-preserving cover plate from outside to inside, wherein the pressure release
Valve is mounted in the steel lid.
Another object again of the invention is to provide a kind of electric pressure cooking saucepan comprising mentioned-above pot cover.
Relief valve of the invention cannot automatically reset after pressure release, use its cooking apparatus in use in guarantee
Safety while, can also user be reminded to overhaul cooking apparatus, to guarantee user using safe.Particularly, originally
Aforementioned relief valve is installed, user can not be turned off after relief valve is opened, and can only be existed by professional inside the pot cover of invention
The reason of overhauling the failure of normal decompression protection device, and resetted after eliminating the hidden trouble, to greatly improve culinary art
The safety of utensil.
Detailed description of the invention
Hereinafter reference will be made to the drawings is described the preferred embodiment of relief valve according to the present invention.In figure:
Fig. 1 is the decomposition diagram of the relief valve of the preferred embodiment of the present invention；
Fig. 2 is the whole assembling schematic diagram of the relief valve of Fig. 1；
Fig. 3 is the schematic cross-sectional view of the relief valve of Fig. 1 after mounting；
Fig. 4 is the schematic diagram when relief valve of Fig. 1 is in close state, wherein (a) is main view, it (b) is left view,
It (c) is top view；
Fig. 5 is the schematic diagram of the relief valve of Fig. 1 in the open state, wherein (a) is main view, it (b) is left view,
It (c) is top view；
Fig. 6 is the schematic three dimensional views of the valve deck in Fig. 1；
Fig. 7 is the schematic three dimensional views of the valve seat in Fig. 1；
Fig. 8 is the schematic three dimensional views of the first spool section in Fig. 1；
Fig. 9 is the schematic cross-sectional view of the pot cover with relief valve of the invention；
Figure 10 schematically illustrates the mounting means of relief valve of the invention in the pot cover of Fig. 9.
Specific embodiment
The present invention is directed to the aforementioned status of the prior art, provides a kind of relief valve, such as can be used for replacing the prior art
In safe pressure relief device, preferred structure is as shown in Figs. 1-5.
Relief valve of the invention includes valve body 1 and spool 2, and the spool 2 fits slidably in the valve body 1.For example,
Valve chamber is equipped with inside valve body 1, at least part of spool 2 fits slidably in the valve chamber.Since spool 2 can be relative to valve
Body 1 slides, thus the spool 2 can have first position and the second position, i.e., the described spool 2 can be in first position and second
It is slided between position.Wherein, the spool 2 is in relief valve when first position and closes (referring to fig. 4), at the spool 2
The relief valve opens (referring to Fig. 5) when the second position.Particularly, the valve body 1 is equipped with elastic spacing structure 3, described
The outer surface of spool 2 is equipped with groove 51.As shown in figure 5, when the spool 2 is in the second position, the elastic spacing knot
Structure 3 is embedded in the groove 51.
The cooperation for passing through elastic spacing structure and groove as a result, keeps relief valve of the invention after opening
It is in the open state and be unable to self-resetting.Therefore, when relief valve of the invention is used in the cooking apparatus such as electric pressure cooking saucepan
On as last safeguard measure when, once its act (often showing the existing failure of electric pressure cooking saucepan or security risk), just not
It automatically resets again, causes electric pressure cooking saucepan that can not continue normal use, user's on-call maintenance can be supervised whereby or sent and repair Voltage force
Pot, and it is resetted manually after debugging or security risk, to ensure that electric pressure cooking saucepan will not be with failure or safety
Hidden danger continue using.
In general, spool 2 slides axially, for this purpose, elastic spacing structure 3 be so arranged that spool 2 reach the second position it
Before, it is resisted against under the action of elastic force on the outer surface of spool 2 always, and be kept fixed (i.e. in the sliding process of spool 2
There is opposite sliding between spool 2), until groove 51 thereon reaches elastic spacing structure when spool 2 reaches the second position
3 position, elastic spacing structure 3 are just sprung into groove 51 under the action of elastic force, so that spool 2 can not self-resetting.
Other than elastic spacing structure 2 and the groove 51 matched, the other structures of relief valve of the invention can be used
Any suitable structure in the prior art, those skilled in the art, which can according to need, to be selected.
Preferably, as shown in Figure 1, the valve body 1 may include valve seat 7 and valve deck 4, the valve deck 4 is fixedly attached to institute
State valve seat 7.By means of valve deck 4, spool 2 can be maintained in valve body 1.
Preferably, as shown in fig. 7, the upper surface of the valve seat 7 is equipped with location hole 71, and it is preferably also provided with threaded hole
72, such as preferably two threaded holes.Accordingly, it as shown in fig. 6, the valve deck 4 is equipped with positioning column 41, and is preferably also provided with logical
Hole 42, such as preferably two through-holes, the positioning column 41 can be assemblied in the location hole 71 in order between valve deck and valve seat
Positioning.In preferred embodiment at the same time with threaded hole 72 and through-hole 42, when the positioning column 41 is assembled to the location hole
When in 71, the through-hole 42 and the threaded hole 72 to just, thus, can be by means of screw 11 (being shown in Fig. 1 and Fig. 3) by valve deck
4 are attached with valve seat 7, that is, screw 11 is threaded into hole 72 after passing through through-hole 42.
Preferably, as shown in fig. 6, the lower surface of valve deck 4 is equipped with the boss protruded towards valve seat side, positioning column 41 is located at it
In a boss on, through-hole 42 then pass through remaining boss, the lower end surface of these boss is concordant, in order to abut the upper of valve seat
End face.After completing assembly, the High definition of these boss goes out the space between valve seat upper surface and bonnet lower surface, the space
Such as a part for accommodating spool 2, and a part of spool 2 is allowed to move wherein.
Furthermore it is preferred that the upper surface of valve deck 4 is provided with sinking portion at the position for corresponding to through-hole 42, for holding
It receives the head of screw 11, prevents it from protruding from valve deck upper surface.
Preferably, the elastic spacing structure 3 includes torsionspring, as shown in Fig. 4 (c) and Fig. 5 (c), the torsion bullet
Spring has first overhanging section 31 and second overhanging section 32, wherein described first overhanging section 31 is fixed, second overhanging section 32 compression
Ground is resisted against on the outer surface of the spool 2 (preferably the first spool section 5), unless spool 2 is located at the second position (such as Fig. 5 (c) institute
Show, at this time in second overhanging section 32 insertion groove 51).Since torsionspring is in pressured state, and first overhanging section is fixed,
Thus there is the trend flicked outward always second overhanging section.When spool 2 is in first position, as shown in Fig. 4 (a), pressure release
Valve is in off state at this time, and second overhanging section 32 is resisted against on the outer surface of spool 2 (in the arrangement of diagram, against position
Setting in the top of groove 51), and equal to the first position of spool 2 and the second position with a distance from the groove 51 on spool 2
Spacing.Then, when spool slides into the second position from first position, second overhanging section 32 is narrowly focused towards groove 51, Bian Ke
It is sprung under the action of elastic force in groove 51 and is stuck in wherein and cannot voluntarily disengage.To make second overhanging section from groove 51
It disengages, it is necessary to second overhanging section is stirred to opposite direction by means of external force, such as manually, is allowed to completely disengaged from groove 51,
2 side of spool can reset.
Preferably, referring to Fig. 6, spring retention posts 43 and the first Spring Card are equipped on the valve body 1 (preferably on valve deck 4)
Position 44.Referring to fig. 4 (c), on the spring retention posts 43, described first overhanging section 31 is stuck in the center of the torsionspring
In the first spring detent 44.Preferably, the section of the first spring detent 44 is in " inverted L " shape, and is fixedly provided in (excellent
Choosing is integrally formed) on the upper surface of valve deck 4, so as to lateral and top, lower section totally three directions to first overhanging section 31
It is limited.First spring detent 44 may include two parts spaced apart, i.e., has biggish width, generally so as to larger
In the range of first overhanging section is limited, reach the reliable effect of limit.
Preferably, it is additionally provided with second spring detent 45 on the valve body 1 (preferably on valve deck 4), described second overhanging section
32 outboard end is stuck in the second spring detent 45.Second spring detent 45 is preferably also with the section of " inverted L " shape.Second
Spring detent 45 can effectively limit second overhanging section of outboard end, prevent the movement and other structures of the outboard end
(such as screw 11) interferes.Preferably, second spring detent 45 have lesser width, such as with the first spring detent
44 part is suitable, does not need in the larger context to limit second overhanging section.Second spring detent 45 is preferred
The outer edge of 4 upper surface of valve deck is set.
As shown, torsionspring and each spring detent are entirely located in the side of valve body middle line, two screws 5 are then located at should
On middle line.
Preferably, the spool 2 includes the first spool section 5 and the second spool section 8, the first spool section 5 and described the
Two spool sections 8 are fixed together, and the groove 51 is located in the first spool section 5, such as positioned at the position close to upper end
Set place.Spool is divided into two sections, can be assembled respectively at the both ends of valve seat, the size that spool both ends are easily implemented is equal
Greater than the size of valve body inner bore (i.e. valve chamber), and then it can prevent spool from deviating from from valve body.
Preferably, as shown in figure 3, being connected between the first spool section 5 and the second spool section 8 by screw thread
It connects.For example, the lower end of the first spool section 5 is provided with threaded hole 52 (referring to Fig. 8), the upper end of the second spool section 8 is provided with outer spiral shell
Line, so as to be screwed into the threaded hole of 5 lower end of the first spool section.Thus, it is preferable that the lower end surface of the second spool section 8 is provided with
Transmit the structure, such as flat recess, cross recess etc. of torque.It is envisioned that external screw thread and threaded hole can be in the first spools
It is exchanged between section and the second spool section, is equally able to achieve required function.
Preferably, it is arranged with reset spring 10 in the second spool section 8, one end of the reset spring 10 is against described
(lug boss is, for example, the flange for being located at lower part to the lug boss being arranged in second spool section 8, has a diameter larger than reset spring 10
Diameter, it is ensured that reset spring is mounted on spool and will not fall down), the backstop knot that the other end is arranged inside the valve body 1
Structure (such as step surface in valve chamber).Reset spring 10 is mounted between spool and valve body with being pressurized, and elastic force makes at spool 2
In the trend that first position or imparting spool 2 are moved towards first position, relief valve is remained off closed state or assigned and is let out
The trend that pressure valve is closed.
Preferably, the first spool section 5 includes stage portion 53 (referring to Fig. 8), and the is arranged in the first spool section 5
One sealing ring 6, first sealing ring 6 for example with the step face contact of stage portion 53.The valve chamber of the valve body includes conical surface portion 73,
The conical surface portion 73 is for example positioned at the upper end of valve seat 7.When the spool 2 is in first position, first sealing ring 6 is compacted
Between the stage portion 53 and the conical surface portion 73, the sealing to valve chamber is realized, thus relief valve is closed (referring to Fig. 3).
As shown in fig. 7, being provided with gas vent 74 on the side wall of valve seat 7, gas vent 74 is communicated with valve chamber.7 shape example of valve seat
As T-shaped, the flange part including being located at upper end, aforementioned location hole 71, threaded hole 72 etc. are located on flange part.The flange of valve seat 7
Portion can be positioned below the second sealing ring 9, and in specific installation, the second sealing ring 9 is pressed on corresponding mounting structure by flange part
In (such as steel lid of electric pressure cooking saucepan), to realize sealing installation.After being installed, the side that flange part is located at mounting structure is (logical
Often it is outside), for gas vent 74 then positioned at the other side of mounting structure (usually inside), the second sealing ring 9 can guarantee installation knot
The sealing of the two sides of structure prevents that gas leakage occurs along the external of relief valve.When relief valve is closed, then relief valve is inside and outside
It realizes sealing, prevents gas leakage.
When spool 2 is in first position, the valve chamber of relief valve is sealed by the first sealing ring 6, and relief valve is closed.In spool
2 when being in the second position, and the first sealing ring 6 is not contacted with the conical surface portion 73 of valve chamber, and valve chamber is connected to external, and passes through gas vent
74 are connected to inside, thus, the inner and outer connection of aforementioned mounting structure, relief valve is opened.
The second aspect of the present invention provides a kind of pot cover comprising mentioned-above relief valve.Such as Fig. 9 and Figure 10 institute
Show, relief valve 100 therein is heretofore described relief valve.
Since relief valve 100 of the invention is unable to self-resetting, user is reminded to send in time and repair or repair in order to play it
Effect, it is preferable that the relief valve is mounted on the inside of the pot cover.Once then showing phase in this way, the relief valve works
The existing failure of cooking apparatus (such as electric pressure cooking saucepan) or security risk answered, normal decompression protection device therein have failed, because
This, before sending and repairing (maintenance), it is undesirable to which user has an opportunity to reset the relief valve, just can guarantee that there are failure or safety in this way
The cooking apparatus of hidden danger will not continue using.
Preferably, as shown in figure 9, pot cover of the invention successively includes cover 104, inner cover 103, steel lid 101 from outside to inside
With heat-preserving cover plate 102, wherein the relief valve 100 is mounted in the steel lid 101.In this way, relief valve 100 is just by completely hidden
It is mounted on inside pot cover to hiding, torsionspring especially therein is hidden between inner cover 103 and cylinder cap 101, and user can not
It voluntarily touches, it cannot also be resetted.It, which resets work, to be completed during maintenance by professional.
Relief valve 100 of the invention when being installed on cylinder cap, the second sealing ring 9 between relief valve 100 and cylinder cap 101 into
Row sealing, prevents gas leakage in pot.
The third aspect of the present invention additionally provides a kind of electric pressure cooking saucepan comprising mentioned-above pot cover.It is of the invention as a result,
Electric pressure cooking saucepan have improve safety, when its normal decompression protection device failure when, can still realize safety relief, i.e. this hair
Bright relief valve is opened.But once this thing happens, and relief valve of the invention then stays open, without self-resetting, because
This, user wants to continue just resetting relief valve with the help of professional using if the electric pressure cooking saucepan, and
The failure of normal decompression protection device is eliminated, so that it is guaranteed that use process safety hereafter.
To sum up, relief valve of the invention can ensure, for example, that the safety in use such as electric pressure cooking saucepan.The present invention
Relief valve can not automatically reset, relief valve open after user can not be turned off, so as to remind user to be sent maintenace point
Maintenance, while the reason of causing its normal decompression protection device to fail is overhauled, and repair, to eliminate the hidden trouble.
Concrete operating principle of the preferred embodiment of relief valve of the invention in electric pressure cooking saucepan are as follows: be in relief valve 100
When closed state, reset spring 10 is in compressive state, and the second spool section 8 is by downward elastic force, due to the first spool section 5
It is connect with the second spool section 8, so that the first spool section 5 also by downward pulling force, is compressed the first sealing ring 6, keep sealing state,
And when the second spool section 8 be subject to when upwarding pressure less than downward elastic force, spool cannot be jacked up, close by second
Seal 9, the first sealing ring 6 sealing function, entire relief valve is in the state of sealing, it is therefore prevented that internal gas leakage, at this time first
The height of groove in spool section 5 is lower than valve deck upper surface, and overhanging section of the second of torsionspring cannot be stuck in the first spool section 5
Groove in；If the normal decompression protection device in pot fails, the pressure in pot is caused to increase, then when the second spool section 8
Be subject to upward pressure the elastic force downward greater than reset spring 10 when, the second spool section 8 is jacked up, while the first spool section
5 and first sealing ring 6 also jacked up, the high steam in pot can be discharged by the gas vent of valve seat to outside pot, thus rise
To the effect of pressure release, the pressure in pot is reduced, simultaneously because the first spool section 5 is jacked up upwards, the groove in the first spool section 5
Higher than valve deck upper surface, overhanging section of the second of torsionspring is sticked into the groove of the first spool section 5 due to outside tension, is prevented
Only after the pressure reduction in pot, the second spool section 8 due to the gravity of the elastic force and spool itself of reset spring and it is automatic
It resets, relief valve is restored to closed state；If necessary to which relief valve is closed, it is necessary to hand-reset is carried out, due to relief valve
It is mounted on inside pot cover, user can not touch, and the maintenance personal for needing profession overhauls, and exclusion causes cannot be just in pot
The failure of normal pressure release, is then resetted manually, guarantees the safety in user's use.
It should be noted that the term in orientation is indicated in context of the invention using "upper", "lower" etc., merely to retouching
State it is clear, indicate be in the accompanying drawings shown in relative positional relationship in arrangement.It is envisioned that if related
Relief valve or the arrangement of pot cover change, corresponding positional relationship can also change therewith.
Those skilled in the art will readily recognize that above-mentioned measures can be freely under the premise of not conflicting
Combination, superposition.
It should be appreciated that above-mentioned embodiment is merely exemplary, and not restrictive, without departing from of the invention basic
In the case where principle, those skilled in the art can be directed to the various apparent or equivalent modification or replace that above-mentioned details is made
It changes, is all included in scope of the presently claimed invention.
Claims (14)
1. a kind of relief valve comprising valve body and spool, the spool fit slidably in the valve body, and the spool is
It is slided between one position and the second position, wherein the spool is in relief valve when first position and closes, at the spool
The relief valve is opened when the second position, which is characterized in that the valve body is equipped with elastic spacing structure, and the spool is axial
Outer surface be equipped with groove, when the spool is in the second position, the elastic spacing structure is embedded in the groove.
2. relief valve according to claim 1, which is characterized in that the valve body includes valve seat and valve deck, and the valve deck is solid
Surely it is connected to the valve seat.
3. relief valve according to claim 2, which is characterized in that the upper surface of the valve seat is equipped with location hole, the valve
It is covered with positioning column, the positioning column is for being assembled in the location hole.
4. relief valve described in one of -3 according to claim 1, which is characterized in that the elastic spacing structure includes torsion bullet
Spring, the torsionspring have first overhanging section and second overhanging section, wherein and described first overhanging section is fixed, and described second
Overhanging section is resisted against on the outer surface of the spool axial direction with being pressurized.
5. relief valve according to claim 4, which is characterized in that the valve body is equipped with spring retention posts and the first spring
Detent, the torsionspring cover on the spring retention posts, and described first overhanging section is stuck in the first spring detent.
6. relief valve according to claim 5, which is characterized in that second spring detent is additionally provided on the valve body, it is described
Second overhanging section of outboard end is stuck in the second spring detent.
7. relief valve according to claim 1, which is characterized in that the spool includes the first spool section and the second spool
Section, the first spool section and the second spool section are fixed together, and the groove is located in the first spool section.
8. relief valve according to claim 7, which is characterized in that between the first spool section and the second spool section
It is attached by screw thread.
9. relief valve according to claim 7, which is characterized in that be arranged with reset spring in the second spool section, institute
The lug boss that one end of reset spring is arranged in the second spool section is stated, the other end is arranged against the valve inner
Stop configurations.
10. relief valve according to claim 7, which is characterized in that the first spool section includes stage portion, and described first
The first sealing ring is arranged in spool section, the valve chamber of the valve body includes conical surface portion, when the spool is in the first position, institute
The first sealing ring is stated to be pressed between the stage portion and the conical surface portion.
11. a kind of pot cover, which is characterized in that including relief valve described according to claim 1 one of -10.
12. pot cover according to claim 11, which is characterized in that the relief valve is mounted on the inside of the pot cover.
13. pot cover according to claim 12, which is characterized in that the pot cover from outside to inside successively include cover, inner cover,
Steel lid and heat-preserving cover plate, wherein the relief valve is mounted in the steel lid.
14. a kind of electric pressure cooking saucepan, which is characterized in that including pot cover described in one of 1-13 according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610094028.5A CN105496185B (en) | 2016-02-19 | 2016-02-19 | Pressure release valve, pot cover with same and electric pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610094028.5A CN105496185B (en) | 2016-02-19 | 2016-02-19 | Pressure release valve, pot cover with same and electric pressure cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105496185A CN105496185A (en) | 2016-04-20 |
| CN105496185B true CN105496185B (en) | 2019-01-22 |
Family
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Family Applications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107080455B (en) * | 2017-06-13 | 2022-07-12 | 珠海格力电器股份有限公司 | Pot cover and have its electric pressure cooker |
| EP3865025A3 (en) | 2017-08-09 | 2021-11-10 | SharkNinja Operating LLC | Cooking device and components thereof |
| USD914436S1 (en) | 2018-06-19 | 2021-03-30 | Sharkninja Operating Llc | Air diffuser with food preparation pot |
| USD883014S1 (en) | 2018-08-09 | 2020-05-05 | Sharkninja Operating Llc | Food preparation device |
| USD903413S1 (en) | 2018-08-09 | 2020-12-01 | Sharkninja Operating Llc | Cooking basket |
| USD883015S1 (en) | 2018-08-09 | 2020-05-05 | Sharkninja Operating Llc | Food preparation device and parts thereof |
| USD934027S1 (en) | 2018-08-09 | 2021-10-26 | Sharkninja Operating Llc | Reversible cooking rack |
| CN212788226U (en) | 2019-02-25 | 2021-03-26 | 沙克忍者运营有限责任公司 | Cooking system |
| US20190254476A1 (en) | 2019-02-25 | 2019-08-22 | Sharkninja Operating Llc | Cooking device and components thereof |
| USD918654S1 (en) | 2019-06-06 | 2021-05-11 | Sharkninja Operating Llc | Grill plate |
| US11678765B2 (en) | 2020-03-30 | 2023-06-20 | Sharkninja Operating Llc | Cooking device and components thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201691676U (en) * | 2010-04-22 | 2011-01-05 | 广东新宝电器股份有限公司 | Automatic steam-exhausting and pressure-releasing structure of electric pressure cooker |
| CN201806510U (en) * | 2010-10-19 | 2011-04-27 | 九阳股份有限公司 | Safety relief electric pressure cooker |
| CN102342739B (en) * | 2011-09-26 | 2013-08-21 | 广东凌丰集团股份有限公司 | Rotating operation type pressure cooker with single handle |
| CN105310492B (en) * | 2014-07-22 | 2017-12-15 | 佛山市顺德区擎能家用电器制造有限公司 | A kind of control valve and the electric pressure cooking saucepan provided with the valve |
| CN205433324U (en) * | 2016-02-19 | 2016-08-10 | 珠海格力电器股份有限公司 | Pressure release valve, pot cover with same and electric pressure cooker |
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