Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a pressure steam oven. This pressure steam oven adopts water supply installation to add water to the inner bag, lets the water liquefaction vapor in the inner bag through heating device make the oven still have pressure and cook, cook the function, and the function is diversified, satisfies consumer's demand.
The technical scheme of the invention is as follows:
A pressure steam oven comprising:
a box defining a liner of an oven cooking space and having a door providing access to the liner and sealing the liner when the door is in a closed position;
the door lock device is used for opening the inlet of the inner container or sealing the inlet of the inner container, and is arranged on the box door;
Wherein the door lock device comprises a handle, a cam, a hinge, a buckle and a lock catch; the handle passes through the top end surface of the box door and is movably connected with the cam, the cam is fixedly connected with the hinge, the buckle is arranged on the hinge through a buckle fixing nail, the buckle is arranged on the upper end wall surface of the liner, and the buckle are arranged in one-to-one correspondence; the handle is rotated to drive the hinge to move along the horizontal direction through the cam, so that the buckle is driven to do circular motion, and locking or tripping between the buckle and the lock catch is achieved.
Preferably, a first staple is inserted through the hinge into the cam to fixedly connect the hinge to the cam.
Preferably, the hinge is provided with a plurality of sliding grooves, a second fixing nail is inserted into the shell of the box door through the sliding grooves to fix the hinge on the box door, and the hinge moves along the sliding grooves.
Preferably, the hinge is further provided with a stop block, the stop block is abutted with a first elastic element, and a groove body for accommodating the first elastic element is arranged on the box door correspondingly; the first elastic element is used for resetting the handle.
Preferably, the buckle is further connected to the door through a connecting piece, and the buckle rotates around the connecting piece with the connecting piece as a pivot of rotation.
Preferably, the door lock device further comprises a pressure safety locking mechanism, wherein the pressure safety locking mechanism is arranged at one end of the hinge and fixedly arranged on the door, and is used for locking the hinge to prevent the hinge from moving; the pressure safety locking mechanism comprises a sealing cavity arranged on the box door, an elbow arranged on an air inlet of the sealing cavity and a valve rod arranged on the sealing cavity, wherein an air hole is formed in the elbow, and the air hole is used for connecting the inner cavity of the sealing cavity with the cavity of the liner in a penetrating way; the pressure of the inner container is larger than that in the sealing cavity, the valve rod is jacked upwards to be abutted with one end of the hinge, and the hinge is clamped and cannot move.
In one embodiment of the invention, the pressure steam oven further comprises a pressure relief device in communication with the cavity of the inner container to vent the gas in the inner container to the air.
The pressure relief device comprises a rocker, an air pipe channel and a pressure relief valve, wherein the rocker is fixedly arranged on a shell of the box door through a first pivot, a key is arranged above one end of the rocker, the top end face of the other end of the rocker is connected with the pressure relief valve, the pressure relief valve is fixedly arranged on the upper part of the box door and is partially exposed out of the shell of the box door, a valve of the pressure relief valve is connected with one end of the air pipe channel, the air pipe channel at the other end is arranged on a panel of the box door, and an air inlet of the air pipe channel is in through connection with a cavity of the liner; pressing the key drives one end of the rocker, and the rocker at the other end rotates around the first pivot to tilt upwards to jack up the pressure release valve, so that medium gas in the inner container cavity flows out through the air pipe channel and the pressure release valve.
The pressure relief device also comprises a push plate, wherein one end of the push plate is connected with the pressure relief valve, a driving source is arranged above one end of the push plate at the other end, and the push plate is fixedly arranged on the shell of the box door through a second fulcrum; the driving source is electrified to drive the output shaft of the driving source to output and press one end of the push plate, the push plate at the other end rotates around the second pivot to tilt upwards to jack up the pressure release valve, so that medium gas in the liner cavity flows out through the gas pipe channel and the pressure release valve.
Preferably, a limiting column is protruded on the shell of the box door below the rocker, and the limiting column is used for limiting the radian of the rocker.
In one embodiment of the invention, the pressure steam oven further comprises a water supply device which is communicated with the cavity of the inner container and supplies water to the cavity of the inner container; the water supply device comprises a water tank and a water supply mechanism connected with the water tank; the water supply mechanism comprises a water storage box with an inner cavity and a water outlet pipeline, a water inlet of the water storage box is communicated with a water outlet of the water tank through a water supply pipeline, one end of the water outlet pipeline is connected with the water outlet pipeline of the water storage box, and the water outlet pipeline at the other end is arranged in the inner container and is communicated with a cavity of the inner container to supply water for the inner container.
Preferably, the water tank is used for containing water, the water tank is fixedly arranged on the tank body and is positioned above the tank body through a water tank support, a first water outlet valve is arranged in a water outlet of the water tank, a jacking column for jacking up the first water outlet valve is arranged on the water tank support correspondingly, and a water outlet channel corresponding to the water outlet of the water tank is also arranged on the water tank support.
Preferably, the water supply mechanism is arranged on the tank body below the water tank, and the water supply mechanism further comprises a push rod, a water inlet valve, a third elastic element and a second water outlet valve which are arranged in the water storage box; the second contact end of the push rod is abutted with the water inlet valve, and the water inlet valve is arranged in the water inlet of the water storage box; the third contact end of the push rod is connected with the second water outlet valve through a fourth elastic element, and the second water outlet valve is arranged in the water outlet of the water storage box; the third elastic element is arranged between the water storage box and the push rod and is abutted against the wall surface of the push rod. The first contact end of the push rod is abutted with a water adding key, the first contact end of the push rod is exposed out of the box body, and the water adding key is fixedly installed on the box door.
Preferably, the water adding button is pressed to drive the push rod to do linear motion, the fourth elastic element is compressed at first, so that the second water outlet valve is closed to block the water outlet of the water storage box, and the push rod is used for opening the water inlet valve again, so that water in the water tank enters the water storage box through the water supply pipeline; the push rod is driven by no external force, the push rod is enabled to return to an initial state by the third elastic element, the water inlet valve is closed, the second water outlet valve is opened, and water in the water storage box flows into the inner container from the water outlet pipeline.
Further, a slot hole is formed in the water outlet of the water storage box, and the slot hole is used for outflow of water.
Preferably, a heating device is installed at the bottom of the inner container, the heating device provides heat for the inner container, the heating device comprises a heating element, and the heating element is a PTC heating body.
The beneficial effects of the invention are as follows: compared with the prior art, the pressure steam oven has the mode selection of pressure cooking, steaming and baking, and has rich functions; the water supply device supplies water into the inner container, and the heating device heats the water to be liquefied into steam, so that the steam cooking effect is achieved in the oven; the door lock mechanism is protected by the pressure safety locking mechanism, so that a user is ensured to open the door by mistake to hurt people or the oven in the process of using the oven; the oven has reasonable structural design.
Detailed Description
In order to make the technical scheme and technical effects of the invention more clear, the invention is further described below with reference to specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, the pressure steam oven of the present invention includes a cabinet 100, a door 200, a liner 300, a door lock device 400, a pressure relief device 500, and a water supply device 600, wherein the bottom end of the door 200 is rotatably connected with the cabinet 100 through a rotation hinge 101. Specifically, one end of the rotating hinge 101 is fixedly disposed on the door 200, and the rotating hinge 101 at the other end is movably disposed in the case 100. In this embodiment, the inner container 300 is disposed in the case 100, and corresponds to the case door 200 provided with a case door sealing ring 201 for covering and sealing the inner container 300, and the case door 200 is a case having an inner cavity; the door lock device 400 and the pressure relief device 500 are provided in the case of the door 200, and the water supply device 600 is provided in the case 100 at the right side of the liner 300.
Referring to fig. 4 to 8, the door lock device 400 includes a door lock mechanism including a handle 410, a cam 420, a hinge 430, a buckle 440, and a latch 450, and a pressure safety locking mechanism 460; the handle 410 is movably connected with the cam 420, the cam 420 is fixedly connected with the hinge 430, the buckle 440 is arranged on the hinge 430, the lock catch 450 is arranged on the wall surface of the liner 300, and the buckle 440 and the lock catch 450 are arranged in one-to-one correspondence.
Referring to fig. 6, in detail, the cam 420 is fixed to the door 200 by a cam bracket 421, the handle 410 is disposed at the upper right corner of the door 200, the handle 410 is connected to the cam 420 through the top surface of the door 200, and a first fixing pin 422 connects the hinge 430 and the cam 420.
Referring to fig. 4 and 6, the hinge 430 is provided with a plurality of sliding grooves 431, and a second fixing nail 432 is inserted into the casing of the door 200 through the sliding grooves 431 to fix the hinge 430 on the door 200. The hinge 430 is further provided with a stop 433, the stop 433 abuts against a first elastic element 434, and a groove 202 for accommodating the first elastic element 434 is provided corresponding to the door 200. In this embodiment, the first elastic element 434 is preferably a spring, and the first elastic element 434 is mainly used for resetting the handle 410.
Referring to fig. 4, the hinge 430 further includes a latch slot 435, and a latch fixing pin 436 is inserted into the latch 440 through the latch slot 435 to fix the latch 440 on the hinge 430. In this embodiment, the buckle 440 is further connected to the door 200 through a connecting member 102, and the buckle 440 rotates around the connecting member 102 with the connecting member 102 as a pivot.
Referring to fig. 4 and 8, two buckles 440 are disposed on the hinge 430, and two buckles 440 are disposed at two ends of the hinge 430, corresponding to the buckles 450 on the liner 300. The box door 200 positioned in front of the buckle 440 is provided with a limiting plate 210, the limiting plate 210 is mainly used for preventing the buckle 440 from moving back and forth in the shell of the box door 200 so that the buckle 440 is in locking connection with the lock catch 450, the limiting plate 210 is provided with a slotted hole 211 matched with the lock catch 450, and the slotted hole 211 is convenient for placing the lock catch 450.
Referring to fig. 7, a pressure safety locking mechanism 460 is disposed and fixedly disposed on the door 200 at one end of the hinge 430, and a crash pad 437 is disposed on the hinge 430 at the one end. The pressure safety lock mechanism 460 includes a seal chamber 461 provided on the door 200, an elbow 462 provided at an air inlet of the seal chamber 461, and a valve stem 463 provided on the seal chamber 461. The elbow 462 is disposed on the door 200 and located on the door 200 housing on the side of the liner 300, and corresponds to the opening 220 of the door 200 for accommodating the elbow 462. The elbow 462 is provided with an air hole 464, and the inner cavity of the sealing cavity 461 is connected with the cavity of the liner 300 through the air hole 464. Wherein a sealing ring 465 is also provided between the sealing cavity 461 and the valve stem 463. In this embodiment, when the oven works, the pressure in the inner container 300 will rise to a certain value, the air in the inner container 300 enters the sealed cavity 461 through the air hole 464 of the elbow 462, the air pressure in the sealed cavity 461 increases, the valve rod 463 is pushed to jack up, so that the valve rod 463 is abutted with the anti-collision pad 437 to clamp the hinge 430 and cannot move, and the handle 410 cannot start to open the door, thereby playing a role of safely locking the door. When the pressure in the inner container 300 is reduced to be less than the pressure in the sealing cavity 461, the gas in the sealing cavity 461 is introduced into the inner container 300 through the gas hole 464, the gas pressure in the sealing cavity 461 is reduced, the valve stem 463 returns to the initial state, and the door lock device 400 is in the state to be opened. The bump pad 437 is adhered or welded to the hinge, and the bump pad 437 is made of a silicone material, so that the valve rod 463 is prevented from being damaged due to collision by the design of the bump pad 437.
The working principle of the door lock mechanism is as follows: referring to fig. 4 and 8, the door 200 rotates the handle 410, the handle 410 drives the cam 420 to rotate, the cam 420 rotates to drive the hinge 430 to move along the direction of the chute 431 to drive the buckle 440, and the buckle 440 performs a circular motion by using the connecting member 102 as a fulcrum, so as to realize the release between the buckle 440 and the buckle 450. When the door 200 is opened, the handle 410 is released, and the handle 410 is automatically restored to the original state by the first elastic member 434.
The door lock device 400 has simple and reasonable structural design in a door unlocking mode of a door lock mechanism, and the door lock structure is provided with an automatic resetting function, so that the door lock device is convenient to operate and use and more humanized; the door lock device 400 is also provided with a safety protection for locking the door lock mechanism by a pressure safety locking mechanism, and the locking is realized by the action of the pressure control valve rod, so that a user is ensured to be in the oven using process, and the damage to people or ovens caused by the fact that the user opens the oven door by mistake is avoided.
Referring to fig. 5 and 9, the pressure relief device 500 includes a rocker 510, a push plate 520, a tracheal passage 530, and a pressure relief valve 540.
Referring to fig. 5, specifically, a rocker 510 is fixedly disposed on a housing of a door 200 through a first pivot 501, a key 550 is disposed above one end of the rocker 510, and a top end surface of the other end of the rocker 510 abuts against a bottom end surface of a push plate 520; the rocker 510 pivots about the first pivot point 501. Wherein, the casing of the door 200 below the rocker 510 is protruded with a limiting post 230, and the limiting post 230 is mainly used for limiting the radian of the rocker 510. The first fulcrum 501 is sleeved with a second elastic element 503, one free end of the second elastic element 503 is arranged on a third fulcrum 504, and the free end of the second elastic element 503 at the other end is connected with a rocker 510 and is positioned below the rocker 510; the second elastic element 503 is mainly used for restoring the rocker 510. In this embodiment, the key 550 is fixedly provided at the upper portion of the door 200. The third fulcrum 504 is fixedly provided on the housing of the door 200. The second elastic element 503 is preferably a torsion spring, and the second elastic element 503 is mainly designed for automatic return of the rocker 510.
The push plate 520 is fixedly disposed on the housing of the cabinet door 200 through a second fulcrum 502, a driving source 560 is disposed above one end of the push plate 520, the push plate 520 at the other end is connected to the relief valve 540, and the push plate 520 rotates around the second fulcrum 502. In the present embodiment, the driving source 560 is preferably a solenoid valve.
The pressure release valve 540 is fixedly provided at an upper portion of the cabinet door 200 and is partially exposed outside the housing of the cabinet door 200. The valve of the pressure release valve 540 is connected with one end of the air pipe channel 530, the air pipe channel 530 of the other end is arranged on the panel of the box door 200, and the air inlet of the air pipe channel 530 is connected with the inner container 300 in a penetrating way.
Referring to fig. 5, the pressure relief device 500 operates according to the following principle: when the sealed oven needs to be depressurized, the pressure release modes are two: firstly, through manual button 550 of pressing, button 550 pushes down the one end of promotion wane 510, and wane 510 of the other end rotates upward perk round first fulcrum 501, and wane 510 of the other end jack-up relief valve 540, and the gas in the inner bag 300 flows out through tracheal passageway 530 and relief valve 540, plays the effect of pressure release.
And secondly, the driving source 560 is electrified to drive the output shaft of the driving source to output and press the tail end of one end of the push plate 520, the push plate 520 at the other end rotates around the second pivot 502 to tilt upwards, the push plate 520 at the end jacks up the pressure release valve 540, and the gas in the liner 300 flows out through the gas pipe channel 530 and the pressure release valve 540 to play a role in pressure release.
The design of the pressure relief device 500 is to ensure safer oven in use, and avoid explosion caused by overlarge pressure in the inner container 300 of the oven, and the pressure relief device 500 can adopt two modes of manual key pressure relief and automatic driving source pressure relief, and avoid safety accidents caused by failure of automatic pressure relief, and the double pressure relief mode is safe and reliable.
Referring to fig. 10, the water supply device 600 includes a water tank 610 and a water supply mechanism 620 connected to the water tank 610, wherein the water tank 610 is fixedly disposed on the tank 100 and above the tank 100 through a water tank bracket 601, the water supply mechanism 620 is disposed on the tank 100 below the water tank 610, and the water supply mechanism 620 is connected to a water outlet of the water tank 610 through a water supply pipe 602.
Referring to fig. 11 and 12, the water tank 610 is mainly used for containing water, a first water outlet valve 611 is installed in a water outlet of the water tank 610, a top post 603 for pushing up the first water outlet valve 611 is provided on the water tank support 601, and a water outlet channel 604 corresponding to the water outlet of the water tank 610 is also provided on the water tank support 601. Specifically, one end of the water supply pipeline 602 is connected with the water outlet channel 604 through an interference fit pipeline, and the water supply pipeline 602 at the other end is connected with a water inlet pipeline of a water storage box of the water supply mechanism 620. In the present embodiment, when the water tank 610 is placed in the water tank holder 601, the top post 603 abuts against the first water outlet valve 611 so that water in the water tank 610 flows into the water feed pipe 602.
Referring to fig. 11 and 12, the water supply mechanism 620 is mainly used for delivering water to the inner container 300, the water supply mechanism 620 includes a water storage box 621 having an inner cavity and a water outlet pipe 622, one end of the water outlet pipe 622 is connected to the water outlet pipe of the water storage box 621, and the water outlet pipe 622 at the other end is disposed in the inner container 300 and is communicated with the cavity of the inner container 300. Specifically, the water supply mechanism 620 further includes a push rod 623, a water inlet valve 624, a third elastic element 625 and a second water outlet valve 626, which are disposed in the water storage box 621, wherein a first contact end 1 of the push rod 623 is abutted against a water adding button 627, and the first contact end of the push rod 623 is exposed outside the box 100, and the water adding button 627 is fixedly mounted on the box door 200; the second contact end 2 of the push rod 623 is abutted with the water inlet valve 624, and the water inlet valve 624 is arranged in the water inlet of the water storage box 621; the third contact end 3 of the push rod 623 is connected to a second outlet valve 626 by a fourth elastic element 628, the second outlet valve 626 being arranged in the outlet of the water storage box 621; one end of the third elastic element 625 abuts against the housing of the water storage box 621, and the other end of the third elastic element 625 abuts against the push rod 623. The water outlet of the water storage box 621 is provided with a slot 629, and the slot 629 is designed to facilitate water outflow. In this embodiment, the third elastic element 625 and the fourth elastic element 628 are each preferably springs.
Referring to fig. 11 and 12, the water supply device 600 operates according to the following principle: pressing the water adding button 627 for a long time, wherein the water adding button 627 is abutted with the first contact end of the push rod 623 to push the push rod 623 to move forward in a straight line, the third contact end of the push rod 623 compresses the fourth elastic element 628 forward to enable the second water outlet valve 626 to block and close the water outlet of the water storage box 621, and the push rod 623 continues to move forward in a straight line until the second contact end of the push rod 623 is abutted with the water inlet valve 624 to open the water inlet valve 624, so that water in the water supply pipeline 602 enters the water storage box 621 from the water inlet of the water storage box 621; and since the water tank 610 is installed in the water tank holder 601, the first outlet valve 611, which is provided at the water outlet of the water tank 610, is already in an open state, and thus water in the water tank 610 automatically flows into the water storage box 21 through the water feed pipe 602 and then through the water feed valve 624.
After a certain time, the water adding button 627 is released, the third elastic element 625 resets the push rod 623 back to the initial state, the second contact end of the push rod 623 is far away from the water inlet valve 624, the water inlet valve 624 returns to the initial state so that the water inlet valve 624 in the water storage box 621 is in a closed state, meanwhile, the fourth elastic element 628 drives the second water outlet valve 626 to return to the initial state, the second water outlet valve 626 is in an open state, and water in the water storage box 621 flows out from the water outlet of the water storage box 621 to the water outlet pipeline 622 and then automatically flows into the bottom of the cavity of the liner 300.
The water supply device of the invention is respectively provided with two water storage devices, one water storage device is a water tank, the other water storage device is a water storage box, and the two water valves of the water inlet valve and the water outlet valve adopted in the water storage box are not synchronously operated, namely, one water valve is opened, the other water valve is closed, thus realizing the water adding operation of the oven in the working process, and being different from the work of stopping the work and opening the oven door to add water in the existing oven. The water supply device has reasonable structural design and convenient operation, and meets the requirements of consumers.
Referring to fig. 13, the pressure steam oven further includes a heating device 700, the heating device 700 includes a heating element 710, and the heating element 710 is disposed at the bottom of the inner container 300 and fixedly disposed at the bottom end surface of the inner container 300. Specifically, the heating element 710 is a PTC heater, which is composed of a PTC ceramic heating element and an aluminum tube. In this embodiment, when the oven needs pressure cooking or steaming, the water adding button 627 on the oven door 200 is manually pressed, water in the water tank 610 is added to the bottom of the cavity of the inner container 300, then the power is turned on, the heating element 710 starts to work, and heat heated by the heating element 710 is transferred to the inner container 300 in a heat conduction manner to heat the water of the inner container 300 to be liquefied into steam, so that the oven has the pressure cooking or steaming function.
The pressure steam oven has the following advantages:
Firstly, the oven has the mode selection of pressure cooking, steaming and baking, and has rich functions; the user can also select the baking mode after the pressure boiling is finished or the baking mode is adopted after the pressure boiling is finished; the water supply device supplies water into the inner container, and the heating device heats the water to be liquefied into water vapor, so that the oven has the effect of steam cooking.
Secondly, the oven can easily add water by one key through the water supply device, and the operation is simple.
Thirdly, the use is safe, a door lock mechanism and a pressure safety locking mechanism of the door lock device are adopted, and the door lock mechanism is protected by the pressure safety locking mechanism, so that a user is ensured to be prevented from damaging people or the oven when the user opens the door by mistake in the oven using process; the pressure relief device is used for relieving the pressure of the inner container of the oven, so that the pressure of the inner container is always in a safe range.
Fourth, the oven is reasonable in design and simple in structure.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. For those skilled in the art, the architecture of the invention can be flexible and changeable without departing from the concept of the invention, and serial products can be derived. But a few simple derivatives or substitutions should be construed as falling within the scope of the invention as defined by the appended claims.