Invention content
The purpose of the present invention is to provide pressure control fuel pressure cookers, to solve fuel pressure cooker existing in the prior art notThe technical issues of capable of realizing automatic pressure control.
Pressure control fuel pressure cooker, including pot cover, interior pot and pedestal, interior pot are connected in a manner of it opposite can slide with pedestalIt connects, interior pot can be tightly connected with pot cover, and pressurize assembly safety device, the freedom of pressurize assembly safety device are equipped on pedestalEnd is abutted with the bottom of interior pot, and the first gas circuit is provided in pressurize assembly safety device, and the first gas circuit is connected to infrared stove head,When interior pot and pot cover, which are formed by the pressure in space, to be increased, interior pot can compress pressurize assembly safety device to change firstThe break-make of gas circuit.
Pressure control fuel pressure cooker of the present invention has the beneficial effect that：
By the way that the interior pot being tightly connected with pot cover is arranged, as interior pot is constantly heated, interior pot is formed by sky with pot coverBetween pressure increase, be used to support the required pressure of interior pot bottom and also constantly increase, pot fills safely to pressurize assembly within instituteThe pressure for setting application gradually increases, and the action of pressurize assembly safety device is made with cutting off the first gas circuit being connected to infrared stove headIt obtains infrared stove head no longer to burn, in by the reduction of the temperature in the space between interior pot and pot cover, pressure reduction, avoidingPressure in pot is excessive and generates danger, so as to realize the function of automatic pressure control.
Preferred technical solution, added improvement be, pressurize assembly safety device includes regulating valve block, in regulating valve blockEquipped with the first connected space, the first connected space is connected to the first air inlet/outlet and the first gas outlet, sliding in the first connected spaceDynamic to be provided with compression bar, one end of compression bar can stretch out regulating valve block, and the other end of compression bar is abutted with Flexible Reset component, reset bulletProperty component is connected to the bottom of the first connected space, and compression bar is connect with spool, spool can change when spool moves first intoThe connected state of gas outlet and the first gas outlet.
By the way that regulating valve block is arranged, the first gas outlet and the first disengaging are realized using regulating valve the first connected space in the blockThe connection of gas port, when pressure of the compression bar by the bottom of interior pot, compression bar compression Flexible Reset component simultaneously moves down, to bandThe dynamic spool being connect with compression bar moves down, to close the first connected space, thus by the first gas outlet and the first air inlet/outletPartition.Above structure by the way that displacement of the interior pot in resilient support to be converted to the break-make of the first gas circuit, may be implemented byAir pressure in interior pot is associated with the start and stop of infrared stove head, to avoid infrared stove head constantly burns and causes the gas in interior potIt presses through big and generates dangerous.
Further preferred technical solution, added improvement are that compression bar presses elastomeric element by first to be supported with spoolIt connects.
Since the control of heat has hysteresis quality, closing infrared stove head that can not make the pressure reduction in interior pot at once,So pressing elastomeric element by setting first connects compression bar and spool, it can be after infrared stove head closing, even if in interior potAir pressure continue to rise, push compression bar to move on for bottom by interior pot, still have buffering empty between compression bar and spoolBetween, so as to compression bar top bad spool, or can also avoid withstanding compression bar because spool is withstood and making the sky in interior potBetween can not continue to increase, cause the pressure in interior pot excessive.
Further preferred technical solution, added improvement are that valve core upper sleeve is equipped with valve core seal ring, valve core seal ringFirst connected space can be closed.
By that in valve core upper sleeve cartridge spool sealing ring, the first connected space can be separated, connect when sealing ring is detached from firstWhen the sealing surfaces in logical space, then the connection of the first connected space may be implemented, the first air inlet is between the first air inlet/outletGas flowing so that infrared stove head being capable of normal combustion.
Technical solution still further preferably, added improvement are that spool is equipped with spool locating flange, seal spoolSnare is mounted in the root of spool locating flange.
By the way that spool locating flange is arranged, the axially downward maximum distance of spool can be limited, can also be utilizedSpool locating flange undertakes first and presses the active force that elastomeric element is applied on spool so that compression bar push spool toSpool can be smoothly pushed when lower movement, avoided when spool flange moves to the bottom of the first connected space, spool and firstPress and relative motion occurs between elastomeric element, finally improves accuracy of action.
Further preferred technical solution, added improvement are, external thread part, regulating valve block are provided on regulating valve blockIt is connect with whorl of base.
By the way that external thread part is arranged on regulating valve block, the height on compression bar top, Jin Erke when can adjust original statePressure when enabling to interior pot to be contacted with compression bar to change in interior pot, to adjust the fluctuation range of the pressure in interior pot, withThe fluctuation range of pressure is adjusted in suitable section.
Preferred technical solution, added improvement are, further include thermocouple, the installation of TC is in the outer of infrared stove headSide, thermocouple are connect with solenoid valve, the gas supply of solenoid valve control infrared stove head.
By being arranged thermocouple in the outside of infrared stove head, when infrared stove head is lighted a fire, thermocouple is heated to be generatedThe electromotive force band moving electromagnetic valve of electromotive force, generation acts, and can supply combustion gas so that infrared burner burns.When anticipatingWhen outer flame-out, the voltage at thermocouple lead end reduces rapidly quickly so that the coil losing electricity in solenoid valve, solenoid valve are made in springIt is rapid to cut off gas valve body access under, prevent combustion gas excessive.
Preferred technical solution, added improvement are that interior pot is supported on by elastic displacement device on pedestal.
Interior pot is supported by the way that elastic displacement device is arranged, the gas in interior pot can be fought using elastic displacement devicePressure so that the displacement distance of interior pot can be linear with the pressure in pot, and the pressure of interior pot is avoided all to be applied to guarantorOn the compression bar for pressing assembly safety device.Meanwhile multiple elastic displacement devices are set it is also possible that the movement of interior pot is more stableIt is even, avoid the run-off the straight on the move of interior pot.
Preferred technical solution, added improvement are, further include elastic temperature-limiting device, and elastic temperature-limiting device includes temperature-sensitiveBlock, temperature-sensitive block are embedded in bimetallic temperature controller, and temperature-sensitive block is also connect with clamping sleeve, and bimetallic temperature controller is pressed on sense by clamping sleeveIn warm block, it is set with collet outside clamping sleeve, is also connect with the second compression elastomeric element outside clamping sleeve, second compresses elastomeric elementIt is also connected in heat-insulated blob of viscose, heat-insulated blob of viscose is mounted on temperature-sensitive pressing plate, and temperature-sensitive pressing plate is connect with the bottom of burner shell.
By the way that elastic temperature-limiting device is arranged, clamping sleeve is held out against using the second compression elastomeric element, and using clamping sleeve comeBimetallic temperature controller is in close contact by the bottom surface of temperature-sensitive block and interior pot, can reliably measure the temperature of pot body.Second elastomeric element is compressed simultaneously, in confrontation when can also avoid only undertaking interior pot movement by elastic temperature-limiting device in potAir pressure support force, can be to avoid the damage of elastic temperature-limiting device.
Further preferred technical solution, added improvement are, further include igniter, and igniter includes ignitingPipe, ignition tube are oppositely arranged with ignition electrode, and ignition tube is connected to the second air inlet/outlet, and the setting of the second air inlet/outlet is in the first connectionIn space, the second air inlet/outlet can keep the connection with the first air inlet/outlet.
It is connected to the second air inlet/outlet by the way that ignition tube is arranged, and using ignition tube, it can be empty by the first connection in spoolBetween in when being interrupted between the first gas outlet and the first air inlet/outlet, still maintain between the second air inlet/outlet and the first air inlet/outletConnection, to continue to light a small amount of combustion gas using ignition tube so that in interior pot in heat preservation or slow cooling state, with profitIt is ripe in the domestic food of control.
Embodiment one
As shown in Fig. 1-Figure 12, pressure control fuel pressure cooker, including pot cover 7, interior pot 9 and pedestal 6, interior pot 9 are arranged in outer potIn 10, cover opening safety device 2, pressure limiting safe venting device 16 and pressure-limiting safety device 19 are installed on pot cover 7, are vented in pressure limitingThe lower end of safety device 16 also sets up anti-blocking safety device 17, and the upper surface of pot cover 7 is provided with folding handle 1, pot cover 7 and outer pot10 non-pivot end is provided with condensating cover safety device 3, is also equipped with timer 20 on pedestal 6 in addition.Wherein, it uncaps safe dressSet 2, pressure limiting safe venting device 16, pressure-limiting safety device 19, anti-blocking safety device 17, folding handle 1, condensating cover safety device 3The prior art is belonged to, also the not essential technical characteristic of this programme relevant art of being solved problem, this field skillArt personnel can understand naturally pot cover 7 is covered after, how so that pot cover 7 reliably connect without at will beating with outer pot 10It opens, can also be clear how from discharge gas on pot cover 7 so that pressure cooker is not caused danger, so for above-mentioned technology handSection, repeats no more in this application.
Interior pot 9 is connect in a manner of it opposite can slide with pedestal 6, and interior pot 9 can be tightly connected with pot cover 7, specifically,Anti-overflow fluid sealant safety device 8 is provided between interior pot 9 and pot cover 7.It is sealed using the anti-overflow fluid sealant safety device 8,Enough sealing effects can be still kept when can be relatively moved between pot 9 and pot cover 7 inside.Guarantor is installed on pedestal 6Assembly safety device 15 is pressed, the free end of pressurize assembly safety device 15 is abutted with the bottom of interior pot 9, pressurize assembly safety deviceThe first gas circuit is provided in 15, the first gas circuit is connected to infrared stove head 5, when interior pot 9 and pot cover 7 are formed by the pressure in spaceWhen power increases, interior pot 9 can compress pressurize assembly safety device 15 to change the break-make of the first gas circuit.
By the way that the interior pot 9 being tightly connected with pot cover 7 is arranged, as interior pot 9 is constantly heated, interior pot 9 is formed with pot cover 7The pressure in space increase, be used to support the required pressure in 9 bottom of interior pot and also constantly increase, pot 9 is to pressurize assembly within instituteThe pressure that safety device 15 applies gradually increases, and pressurize assembly safety device 15 acts, and is connected to infrared stove head 5 with cut-outFirst gas circuit so that infrared stove head 5 no longer burns, so as to reduce the temperature in the space between interior pot 9 and pot cover 7,Pressure reduction avoids the pressure in interior pot 9 excessive and generates danger, so as to realize the function of automatic pressure control.
Particularly, pressurize assembly safety device 15 includes regulating valve block, and the first connected space is equipped in regulating valve block, theOne connected space is connected to the first air inlet/outlet 1503 and the first gas outlet 1511, is slided in the first connected space and is provided with compression bar1508, one end of compression bar 1508 can stretch out regulating valve block, and the other end of compression bar 1508 is abutted with Flexible Reset component 1509.PressureThe upper end of bar 1508 can be lockked by the lock screw 1507 being threadedly coupled with regulating valve block, and Flexible Reset component 1509 is connected toThe bottom of first connected space, compression bar 1508 are connect with spool 1505, and spool 1505 can change when spool 1505 movesThe connected state of one air inlet/outlet 1503 and the first gas outlet 1511.Wherein, regulating valve block is mounted in air guide outer shroud 1502, is ledGas outer shroud 1502 by air guide mounting plate 1501 be mounted on pedestal 6 on, be arranged on air guide outer shroud 1,502 first air inlet/outlet 1503,First gas outlet 1511 and the second air inlet/outlet 1512, between regulating valve block and air guide outer shroud 1502 also by sealing ring 1504 intoRow sealing, so that the first air inlet/outlet 1503, the second air inlet/outlet 1512, the first gas outlet 1511 can only be connected to firstThe problem of ventilating between space, gas leakage will not occur.
By the way that regulating valve block is arranged, the first gas outlet 1511 and first is realized using regulating valve the first connected space in the blockThe connection of air inlet/outlet 1503, when pressure of the compression bar 1508 by the bottom of interior pot 9, compression bar 1508 compresses Flexible Reset componentIt 1509 and moves down, to drive the spool 1505 being connect with compression bar 1508 to move down, to close the first connected space, fromAnd the first gas outlet 1511 and the first air inlet/outlet 1503 are separated.Above structure may be implemented by interior pot 9 air pressure with it is redThe association of the start and stop of outside line burner 5 causes that the air pressure in interior pot 9 is excessive and generates to avoid the constantly burning of infrared stove head 5It is dangerous.
Further particularly, compression bar 1508 presses elastomeric element by first and is abutted with spool 1505.
Since the control of heat has hysteresis quality, closing infrared stove head 5 that can not make the pressure drop in interior pot 9 at onceIt is low, so pressing elastomeric element by setting first connects compression bar 1508 and spool 1505, can be closed in infrared stove head 5Afterwards, even if the air pressure in interior pot 9 continues to rise, push compression bar 1508 to move on for bottom by interior pot 9, compression bar 1508 withStill there is cushion space between spool 1505, so that compression bar 1508 pushes up bad spool 1505, or can also avoid because of spool1505 withstood and by compression bar 1508 withstand and so that in space in pot 9 can not continue to increase, lead to pressure mistake in interior pot 9Greatly.
1505 sealing ring 1504 of spool, 1505 sealing ring of spool, 1504 energy are further particularly set on spool 1505It is enough to close the first connected space.
By 1505 sealing ring 1504 of set spool on spool 1505, the first connected space can be separated, work as sealingWhen circle 1504 is detached from the sealing surfaces of the first connected space, then the connection of the first connected space may be implemented, the first air inlet arrivesGas flowing between first air inlet/outlet 1503, so that infrared stove head 5 being capable of normal combustion.
Further particularly, spool 1505 is equipped with spool locating flange, and 1505 sealing ring 1504 of spool is sleeved onThe root of spool locating flange.Specifically, spool 1505 further includes 1505 locating shaft of spool, the setting of 1505 locating shaft of spool is being schemedThe lower section of spool locating flange shown in 6.1505 locating shaft of spool is inserted into the counterbore of the first connected space bottom.
By setting spool locating flange, the axially downward maximum distance of spool 1505 can be limited, it can alsoFirst is undertaken using spool locating flange and presses the active force that elastomeric element is applied on spool 1505, so that compression bar 1508Spool 1505 can be smoothly pushed when pushing spool 1505 to move downward, avoids moving to the first connection in 1505 flange of spoolWhen the bottom in space, spool 1505 and first presses relative motion occurs between elastomeric element, finally improves the accurate of actionProperty.
Further particularly, further include igniter, igniter includes ignition tube 12, ignition tube 12 and ignition electrode 13It being oppositely arranged, ignition tube 12 is connected to the second air inlet/outlet 1512, and the second air inlet/outlet 1512 is arranged in the first connected space,Second air inlet/outlet 1512 can keep the connection with the first air inlet/outlet 1503.Specifically, the first air inlet/outlet 1503 andTwo air inlet/outlets 1512, are arranged in above-mentioned counterbore, so, even if the sealing ring 1504 on spool 1505 is passed in and out firstBetween gas port 1503 and the first gas outlet 1511 connection cut-out, then will not interfere the first air inlet/outlet 1503 and second intoConnection between gas outlet 1512.
It is connected to the second air inlet/outlet 1512 by the way that ignition tube 12 is arranged, and using ignition tube 12, it can be in spool 1505When by being interrupted between the first gas outlet 1511 and the first air inlet/outlet 1503 in the first connected space, second is still maintained into outletConnection between mouth 1512 and the first air inlet/outlet 1503, to continue to light a small amount of combustion gas using ignition tube 12 so that interior pot 9In the state in heat preservation or slow cooling, so that the domestic food of control is ripe.
Further particularly, external thread part is provided on regulating valve block, regulating valve block is threadedly coupled with pedestal 6.
By the way that external thread part is arranged on regulating valve block, the height on 1508 top of compression bar when can adjust original state, intoAnd pressure when interior pot 9 being enabled to be contacted with compression bar 1508 in interior pot 9 can be changed, to adjust the pressure in interior pot 9The fluctuation range of pressure is adjusted in suitable section by fluctuation range.
Particularly, further include thermocouple 14, thermocouple 14 is mounted on the outside of infrared stove head 5, thermocouple 14 and electricityMagnet valve 22 connects, and solenoid valve 22 controls the gas supply of infrared stove head 5.
By being arranged thermocouple 14 in the outside of infrared stove head 5, when infrared stove head 5 is lighted a fire, thermocouple 14 byHeat generates electromotive force, and the electromotive force band moving electromagnetic valve 22 of generation acts, and can supply combustion gas so that infrared burner burns.When accident extinguishing occurs, the voltage of 14 lead end of thermocouple reduces rapidly quickly so that the coil losing electricity in solenoid valve 22, electricityMagnet valve 22 is under the action of the spring, rapid to cut off gas valve body access, prevents combustion gas excessive.
Particularly, interior pot 9 is supported on by elastic displacement device on pedestal 6.
Interior pot 9 is supported by the way that elastic displacement device is arranged, the gas in interior pot 9 can be fought using elastic displacement deviceBody pressure so that the displacement distance of interior pot 9 can be linear with the pressure in pot, and the pressure of interior pot 9 is avoided all to applyOnto the compression bar 1508 of pressurize assembly safety device 15.Meanwhile multiple elastic displacement devices are set it is also possible that interior pot 9 shiftingIt is dynamic more stable uniform, avoid 9 run-off the straight on the move of interior pot.
Particularly, further include elastic temperature-limiting device, elastic temperature-limiting device includes temperature-sensitive block 411, and temperature-sensitive block 411 is embedded inBimetallic temperature controller 412, bimetallic temperature controller 412 can be drawn by conductor wire 401, be connected in series to the control circuit of solenoid valve 22In.Temperature-sensitive block 411 is also connect with clamping sleeve 410, and bimetallic temperature controller 412 is pressed in temperature-sensitive block 411 by clamping sleeve 410, pressureIt is set with collet 408 outside fixed 410, resilient coil 409 is set with outside collet 408, is also compressed with second outside clamping sleeve 410Elastomeric element 405 connects, and the second compression elastomeric element 405 is also connected in heat-insulated blob of viscose 404, and heat-insulated blob of viscose 404 is mounted on senseOn temperature and pressure plate 402, temperature-sensitive pressing plate 402 is connect with the bottom of burner shell 506.The top of burner shell 506 is equipped with infrared rayCeramic cutting edge of a knife or a sword net 507, infrared ceramic cutting edge of a knife or a sword net 507 are compacted the compression of decorative cover 513.Wherein, second elastomeric element 405 is compressed, it can be withFor spiral compression spring.Temperature-sensitive pressing plate 402 can be fixed on the bottom plate of infrared stove head 5 by temperature-sensitive press plate connection board 403.
By the way that elastic temperature-limiting device is arranged, clamping sleeve 410 is held out against using the second compression elastomeric element 405, and utilize pressureFixed 410 enable the bimetallic temperature controller 412 to be in close contact by the bottom surface of temperature-sensitive block 411 and interior pot 9, can be reliableMeasure the temperature of pot body.Second elastomeric element 405 is compressed simultaneously, can also avoid only undertaking interior pot by elastic temperature-limiting deviceThe support force of air pressure in confrontation when 9 movement in pot 9, can be to avoid the damage of elastic temperature-limiting device.
As shown in figure 11, the operating principle of the present embodiment is as follows：
When using the pressure cooker, first it will be put into corresponding food materials in interior pot 9, cover pot cover 7, pot cover 7 is filled safely by closing lidSet 3 lockings.
Define the combustion gas of air pressure by the counterbore in the first connected space by combustion gas overvoltage constant pressure valve 21, by first intoGas outlet 1503 is flowed into the second air inlet/outlet 1512, and is sprayed from ignition tube 12 by ignition tube 12, from ignition tube 12The combustion gas of ejection is ignited the spark ignition that needle 13 is discharged.Simultaneously as the air pressure in interior pot 9 and the space in pot cover 7 is notGreatly, compression bar 1508 can not be compressed, so combustion gas can also pass through the first air inlet/outlet 1503 and the first gas outlet 1511, is flowed intoBurn in infrared stove head 5, thus combustion gas can the bottom of internal pot 9 heated so that the food materials heating in interior pot 9.When infrared stove head 5 is lighted a fire, thermocouple 14 is heated to generate electromotive force, and the electromotive force band moving electromagnetic valve 22 of generation acts, can be withSupply combustion gas so that infrared burner burns.When accident extinguishing occurs, the voltage of 14 lead end of thermocouple drops rapidly quicklyIt is low so that the coil losing electricity in solenoid valve 22, solenoid valve 22 is under the action of the spring, rapid to cut off gas valve body access, prevents from firingGas is excessive.
When the air pressure in interior pot 9 is larger, compression bar 1508 by the bottom of interior pot 9 pressure (while elastic displacement safetyDevice 18 and the warm safety device of limit 4 also can forced compressions), compression bar 1508 compresses Flexible Reset component 1509 and simultaneously moves down, fromAnd the spool 1505 being connect with compression bar 1508 is driven to move down, the sealing ring 1504 of the root of the locating flange of spool 1505 willThe counterbore of first connected space bottom seals, to close the connection of the first connected space or more, thus by the first gas outlet 1511Separate with the first air inlet/outlet 1503.Since the movement of spool 1505 can't change the disengaging of the first air inlet/outlet 1503 and secondThe connection of gas port 1512 burns away so ignition tube 12 will not die, since ignition tube 12 is relatively small flame, noCentre heating heat conducting disk 11 can be heated, within air pressure in pot 9 can decline, after dropping to setting value, pressurize assemblyCompression bar 1508 in safety device 15 is jacked up under the action of Flexible Reset component 1509, and band movable valve plug 1505 moves upwards,So that the first air inlet/outlet 1503 is connected to the first gas outlet 1511, infrared stove head 5 continues to heat, and the air pressure in interior pot 9 is againSecondary rising.Above-mentioned pass gas is repeated, is depressured, opens gas, igniting, boosting, such cycle operation plays pressure maintaining effect, until timer20 times arrived, and disconnected solenoid valve 22 and acted on, and closed gas circuit gas supply, and pressure cooker is just stopped completely.
It floats between 5kPa in 1kPa specifically, pressurize assembly safety device 15 can control the air pressure in interior pot 9,1KPa opening gas circuits, 5KPa close gas circuit, and cycle plays pressurize in a certain range back and forth.
If kettle temperature reaches 150 DEG C or dry combustion method, the bimetal leaf in warm safety device 4 is limited because of high temperature, and leads to itThe contact contact of control disconnects, and connection solenoid valve 22 powers off, and cut-out gas valve body is logical to play protected by temperature limitation.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely toConvenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply phaseTo importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phaseEven ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It canCan also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke YishiConnection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete conditionConcrete meaning in invention.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extentPresent invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according toSo can with technical scheme described in the above embodiments is modified, either to which part or all technical features intoRow equivalent replacement, such as：
(1) it is to be mounted with a sealing ring in the root of spool locating flange, in fact, can also be in valve in embodiment oneAnnular groove is set on the outer circumference surface of the axle portion of core, to install the sealing ring, or is arranged on the lower face of locating flangeSealing ring is mounted in the annular groove of end face by one annular groove.
(2) it is to continue to heat using ignition tube, in fact, closing when closing infrared stove head in embodiment oneIt when infrared stove head, can not also be heated using ignition tube, when pressure drops to certain value, directly initiate ignition tube and addedHeat.
(3) further, it is also possible to which the distributed thermal energy of cooling utilizes weight come generating-charging when using infrared stove head is closedThe electric energy newly to charge carries out electric pulse igniting.
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solutionRange.