CN111820728B

CN111820728B - Steam box

Info

Publication number: CN111820728B
Application number: CN202010620846.0A
Authority: CN
Inventors: 张权; 杨均; 曹骥; 姚青; 茅忠群; 诸永定
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-05-18
Anticipated expiration: 2040-06-30
Also published as: CN111820728A

Abstract

The invention relates to a steam box, which comprises an inner container, wherein the bottom wall of the inner container is provided with a mounting hole, a heating plate is embedded in the mounting hole, the heating plate can move up and down relative to the bottom wall of the inner container under the driving of a driving device, and at least has two states: in the first state, the top surface of the heating plate is flush with the inner bottom surface of the inner container, and a flat plane is formed at the inner bottom surface of the inner container; in the second state, the top surface of the heating plate is lower than the inner bottom surface of the inner container, and a water storage groove is formed on the top surface of the heating plate. Compared with the prior art, the steam-water-storage heating plate has the advantages that a user can conveniently clean condensed water on the inner bottom surface of the inner container, and water is concentrated in the water storage groove, so that the heating efficiency of the heating plate on the water is improved, and the steam generation efficiency is further improved.

Description

Steam box

Technical Field

The invention relates to the field of cooking devices, in particular to a steam box.

Background

The waterway system of a steaming cooking device such as a steam box generally includes a water tank, a water pump, a pipeline, and an inlet and outlet water nozzle, etc., and is generally disposed above the inner container, for example: chinese invention patent application No. CN201611207705.6 (publication No. CN108236380A), chinese utility model patent application No. CN201621431334.5 (publication No. CN206586829A), and chinese utility model patent application No. CN201620072126.4(CN205390988U) all disclose structures in which a water path system such as a water tank is provided above an inner container.

The existing waterway system has the following problems: (1) the space above the inner container is small, so that the volume of the existing water tank is generally small (about 1L). (2) The interior bottom surface of current steam ager inner bag is sunken down, can accumulate the comdenstion water on the interior bottom surface of inner bag after the culinary art finishes, needs the user to clean, if not clean, not only can influence the user and use the steam ager next time to influence user's use and experience, can bury down the potential safety hazard to user's health moreover. (3) Because the waterway system is hidden in the whole machine, if the waterway system leaks, the waterway system can not be found in time, and meanwhile, the whole machine needs to be detached during maintenance, so that the maintenance is troublesome. (4) in the culinary art in-process, can't effectively learn how much water yield still remains in the water tank to in the culinary art process, when adding water, the culinary art is suspended and takes out the water tank when needing, influences user's culinary art experience. (5) The existing waterway system is communicated with the inner container, so that oil stains can enter a water inlet pipeline of the waterway system in the cooking process.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a steam box which is convenient to use and high in steam generation efficiency aiming at the prior art.

The second technical problem to be solved by the invention is to provide a steam box with an inner container convenient to clean, aiming at the prior art.

The third technical problem to be solved by the invention is to provide a steam box convenient for waterway maintenance aiming at the prior art.

The fourth technical problem to be solved by the invention is to provide a steam box with a large water tank volume aiming at the prior art.

The fifth technical problem to be solved by the invention is to provide the steam box which is convenient for the water tank to feed water aiming at the prior art.

The sixth technical problem to be solved by the invention is to provide a steam box which is convenient for monitoring the water quantity in the water tank aiming at the prior art.

The seventh technical problem to be solved by the invention is to provide a steam box which is convenient for water to enter the inner container aiming at the prior art.

The eighth technical problem to be solved by the invention is to provide the steam box which is convenient for opening and closing the water inlet state of the inner container and can prevent water in the water path from being polluted aiming at the prior art.

The technical scheme adopted by the invention for solving at least one technical problem is as follows: the utility model provides a steam box, includes the inner bag, its characterized in that, the mounting hole has been seted up on the diapire of inner bag, inlays in this mounting hole and is equipped with heating plate, and this heating plate can reciprocate for the diapire of inner bag under the drive arrangement drive to at least, two kinds of states have: in the first state, the top surface of the heating plate is flush with the inner bottom surface of the inner container, and a flat plane is formed at the inner bottom surface of the inner container; in the second state, the top surface of the heating plate is lower than the inner bottom surface of the inner container, and a water storage groove is formed on the top surface of the heating plate.

For can be better along with the moving down of heating plate and form above-mentioned retaining recess, avoid the retaining recess to take place the phenomenon of leaking simultaneously, be connected with the sealing washer that can stretch out and draw back from top to bottom along circumference between the hole edge of mounting hole and the periphery of heating plate.

In order to enable the driving device to better drive the heating plate to move up and down, the driving device is a wax motor arranged below the inner container, and a power output shaft of the wax motor extends up and down and is fixed with the bottom of the heating plate.

Furthermore, in order to more conveniently clean condensed water accumulated on the inner bottom surface of the inner container, a water scraping assembly and a water tank are arranged in the inner container, the water scraping assembly comprises a water scraping strip, a driving mechanism for driving the water scraping strip to move along the inner bottom surface of the inner container and a water drainage groove, the water drainage groove is arranged on the inner bottom surface of the inner container, a water guide opening is formed in the groove wall of the water drainage groove, a water return opening is formed in the water tank, and the water guide opening is in fluid communication with the water return opening. The water scraping strip moves along the inner bottom surface of the inner container to scrape the condensed water into the drainage groove, and the condensed water accumulated in the drainage groove flows back to the water tank through the water guide port and the water return port, so that the condensed water is cleaned and recycled.

In the prior art, the water tank is generally arranged on an upper mounting plate, the mounting space on the upper mounting plate is small (components such as an exhaust channel and the like need to be mounted), therefore, the volume of the water tank is smaller, and furthermore, the invention also comprises a door body which can cover the opening at the front side of the inner container, the water tank is arranged in the door body, the installation space in the door body is relatively large, so that the volume of the water tank is larger (can be as large as nearly 3L) than the volume of the water tank in the prior art, and in addition, the water scraping strip is arranged along the front and back direction of the inner container and can move back and forth along the left and right direction of the inner container under the driving of the driving mechanism, the two drainage grooves are respectively arranged at the left end and the right end of the inner container, each drainage groove respectively extends along the front-back direction of the inner container, the bottom wall of each drainage groove is respectively provided with the water guide port, and each water guide port is respectively communicated with the water return port of the water tank through the water return pipe. Thereby enable the water strip of scraping and clear up the water on the bottom surface in the inner bag better, set up the water tank in the door body simultaneously, also conveniently look over the condition of leaking of water tank and maintain.

Further, the driving mechanism comprises a screw and a water scraping motor for driving the screw to rotate, the screw is arranged on the rear side of the inner cavity of the inner container along the left-right direction of the inner container, a nut sleeve is fixed at the rear end of the water scraping strip, and the nut sleeve is in threaded connection with the screw to enable the screw and the screw to form a screw transmission pair. Therefore, the water scraping strip can move along the inner bottom surface of the inner container more stably under the driving of the driving mechanism.

And a guide sleeve is fixed on the nut sleeve, a guide rod is arranged on the rear side of the inner cavity of the inner container along the left-right direction of the inner cavity, and the guide sleeve is sleeved on the guide rod and can move back and forth along the guide rod. The water scraping strip can move along the screw more stably by arranging the guide rod and the guide sleeve.

Furthermore, the nut sleeve is provided with a magnetic block and also comprises a position sensor which can form magnetic attraction with the magnetic block and is connected with the wiper motor through an electric signal, and the back of the inner container is provided with a guide rail for the position sensor to move back and forth along the left and right directions of the inner container. The position of the water scraping strip on the bottom surface in the water tank can be monitored through the cooperation of the magnetic block and the position sensor, and then condensed water on the bottom surface in the water tank can be better cleaned.

Still further, the door body rotates relative to the opening of the inner container through a rotating shaft on the door body, a door angle sensor is installed on the rotating shaft, the door angle sensor and the position sensor are respectively connected with the driving device through electric signals, and the door angle sensor is connected with the wiper motor through electric signals. When the culinary art finishes, the user opens a body, the wiping strip is in initial position, door angle sensor and position inductor are respectively with the position information transmission of the body state information of a body and wiping strip for drive arrangement, drive arrangement work and drive heating plate move up, the bottom surface flushes in heating plate top surface and the inner bag, it removes and clears up the comdenstion water on the bottom surface in the inner bag to wipe the water motor drive, scrape the distance that the wiping strip removed through position inductor real time monitoring, when the body is opened completely, the wiping strip just in time is removed to the opposite side by one side of inner bag, and the comdenstion water on the bottom surface also finishes in the inner bag, promote user's use and experience.

Further, the door body is including the first door plant that is located the outside and the second door plant that is located behind the first door plant, and this is first, form the installation clearance between the second door plant, above-mentioned water tank sets up in this installation clearance, can dispel the heat to the door body surface through the water tank like this, avoids a body surface high temperature scald user, and the part of above-mentioned first door plant constitutes one of them side lateral wall of water tank and this side lateral wall of water tank is visual form, and the water yield in the water tank can be observed to the user to can add water in the water tank in real time when the water tank lacks water.

For the water level in can observing the water tank better, be provided with water level float subassembly in the water tank, this water level float subassembly includes vertical first float rod and the cover of setting in the water tank and establish on this first float rod and can follow the water level in the water tank along the water level buoy of first float rod unsteady from top to bottom.

Further, the water inlet assembly comprises a first water inlet pipe, a water inlet pump, a second water inlet pipe and a water absorption long pipe, a hollow handle is arranged on the outer surface of the door body, the water absorption long pipe is contained in the inner cavity of the handle, a window which can be used for exposing the water absorption long pipe is formed in the front of the handle, a flip cover which can cover the window is hinged to the window, one end of the water absorption long pipe is communicated with one end of a water outlet joint arranged on the back side of the handle, the other end of the water absorption long pipe can be communicated with an external water source, one end of the first water inlet pipe is communicated with a water inlet of the water tank, the other end of the first water inlet pipe is communicated with a water outlet of the water inlet pump, one end of the second water inlet pipe is communicated with a water inlet. The water inlet assembly is convenient for water to enter the water tank, and the water inlet long pipe is arranged to facilitate the connection of an external water source, so that the cooking time of the steam box can be theoretically infinitely long.

In order to further facilitate water inflow into the water tank by judging the amount of water in the water tank, a full-water and short-water floater assembly is arranged in the water tank and comprises a second floating rod vertically arranged in the water tank, a full-water section and a short-water section are respectively arranged at the upper end and the lower end of the second floating rod, a full-water floater and a short-water floater with magnetism are respectively sleeved on the full-water section and the short-water section, the full-water section and the short-water section are respectively provided with a full-water point and a short-water point, a full-water magnetic reed switch and a short-water magnetic reed switch are respectively arranged on the full-water point and the short-water point, the full-water floater and the short-water floater can respectively trigger the full-water magnetic reed switch and the short-water magnetic reed switch through magnetic attraction, and the full-water magnetic reed switch and the short-water magnetic reed switch are respectively connected with the water inlet pump through electric signals. When the magnetic reed switch is opened, the water inlet pump is opened to feed water into the water tank, and when the magnetic reed switch is opened, the water inlet pump is closed to stop feeding water into the water tank.

The water outlet assembly comprises a water outlet pipe and a water outlet pump arranged on the water outlet pipe, the water outlet pipe is arranged on a water outlet of the water tank, a jet orifice is formed in the inner side face of the door body, a water outlet nozzle is arranged at the water outlet end of the water outlet pipe, and water outlet of the water outlet nozzle can be sprayed to the heating plate in the inner cavity of the inner container. Therefore, water in the driving lower water tank of the water outlet pump can be sprayed on the heating plate through the water outlet spray head and the spray opening, so that steam is generated through heating.

Further, the water outlet pipe comprises a first water outlet pipe and a second water outlet pipe, wherein the first water outlet pipe and the second water outlet pipe are vertically arranged in the water tank, the lower end of the first water outlet pipe is located at the lower part of the inner cavity of the water tank, the upper end of the first water outlet pipe is exposed above the water tank and communicated with a water inlet of a water outlet pump arranged outside the water tank, the upper end of the second water outlet pipe is exposed above the water tank and communicated with a water outlet of the water outlet pump, and the lower end of the second water outlet pipe penetrates through a water outlet located at the lower part of the water tank and is provided. Through the design, the water outlet pipe and the water outlet pump can better output water in the water tank through the water outlet spray head.

Further, the injection port is circular in shape and is arranged on the second door plate, the inner side surface of the lower part of the water tank is recessed outwards to form an installation groove, the installation groove and the corresponding part of the second door plate enclose an installation space, the injection port and the water outlet nozzle are both positioned in the installation space, an opening and closing mechanism for controlling the opening and closing of the injection port is also arranged in the installation space, the opening and closing mechanism comprises an opening and closing motor, a transmission gear set, an opening and closing gear, a rotating bracket, an installation bracket and a circular opening and closing plate, the transmission gear set is used for transmitting the output power of the opening and closing motor to the opening and closing gear, the rotating bracket is circular in shape and is embedded in the injection port and can rotate along the opening edge of the injection port by taking the central shaft of the injection port as the center, the opening and closing gear is fixed on the inner disc surface of the rotating bracket in a concentric arrangement mode, the mounting bracket is cylindrical in shape, the mounting bracket is transversely arranged in the mounting space and is concentrically arranged with the opening and closing gear, the water outlet nozzle is axially arranged in the mounting bracket, the opening of the water outlet nozzle faces the jet opening, the opening plate is concentrically arranged and clamped between the rear end of the mounting bracket and the opening and closing gear, the size of the opening plate is matched with that of the opening of the jet opening, the opening plate is formed by splicing at least two fan-shaped support plates with the same circle center, and the support plates can be separated from each other or spliced with each other under the rotation of the opening and closing gear. When water needs to be sprayed into the inner container, the support plates move towards the mutually separating direction, the jet orifice is opened, and the water outlet of the water outlet spray head can be sprayed into the inner container through the jet orifice; when water does not need to be sprayed to the inner container, the support plates move towards the mutual splicing direction, and the jet openings are closed, so that water in the water channel can be effectively prevented from being polluted, for example, oil smoke, food residues and the like in the cooking process can enter the water channel system through the jet openings.

Furthermore, the wheel surface of the opening and closing gear is circumferentially fixed with rotating shafts which are in one-to-one correspondence with the support plates by taking the center hole as the center, one end of each support plate along the same direction is respectively pivoted on the corresponding rotating shaft, guide shafts corresponding to the support plates one by one are fixed on the opening edge of the rear end of the mounting bracket along the circumferential direction, arc-shaped guide grooves are respectively arranged on each support plate, the free end of each guide shaft is respectively inserted into the corresponding guide groove, when each support plate rotates by taking the rotating shaft as the center, the corresponding guide shaft can slide back and forth along the corresponding guide groove, and when the free end of the guide shaft is positioned at one end of the guide groove, the support plates are mutually spliced to form an open-close plate, the jet opening is shielded by the open-close plate, when the free end of the guide shaft is located at the other end of the guide groove, the support plates are completely separated and the ejection port is completely opened. Therefore, the opening and closing movement (namely the mutual separation and the splicing movement) of the support plates of the opening and closing plate can be better realized.

In order to better transmit the driving force of the opening and closing motor to the opening and closing gear and further drive the support plates to move through the rotation of the opening and closing gear, the transmission gear set comprises a driving bevel gear, a driven bevel gear and a transmission gear, wherein the driving bevel gear, the driven bevel gear and the transmission gear are fixed on an output shaft of the opening and closing motor, the driven bevel gear is meshed with the driving bevel gear, the transmission gear is meshed with the opening and closing gear, and the driven bevel gear and the transmission gear are duplicate gears.

Compared with the prior art, the invention has the advantages that: the heating plate reciprocates for the inner bag diapire under the drive arrangement drive to under the first state, the top surface of heating plate flushes with the interior bottom surface of inner bag, thereby convenience of customers clears up the interior bottom surface of inner bag, and under the second state, the top surface of heating plate is less than the interior bottom surface of inner bag and forms the retaining recess on the top surface of heating plate, hydroenergy concentrates on this retaining recess like this, thereby improve the heating plate to the heating efficiency of water, and then improve the emergence efficiency of steam.

Drawings

FIG. 1 is a schematic structural diagram of a steam box in an embodiment of the invention;

FIG. 2 is a partial structural view of the steam box in the embodiment of the present invention;

FIG. 3 is another partial structural view of the steam box in the embodiment of the present invention;

FIG. 4 is a cross-sectional view of a steam box in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a door body according to an embodiment of the present invention;

FIG. 6 is a partial exploded view of the door body according to an embodiment of the present invention;

FIG. 7 is a schematic view of a partial structure of a door body according to an embodiment of the present invention;

FIG. 8 is a schematic view of another partial structure of the door body according to the embodiment of the present invention;

fig. 9 is another schematic structural diagram of the door body in the embodiment of the present invention (in the state where the flip cover is opened);

FIG. 10 is a cross-sectional view of a door body according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of an opening and closing mechanism according to an embodiment of the present invention;

FIG. 12 is a partial exploded view of the opening and closing mechanism in an embodiment of the present invention;

FIG. 13 is a partial cross-sectional view of the opening and closing mechanism of an embodiment of the present invention (with the plates fully assembled);

fig. 14 is another partial cross-sectional view of the opening and closing mechanism in an embodiment of the present invention (with the plates completely separated).

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 14, a steam box comprises an inner container 1 and a water channel system, wherein a mounting hole 11 is formed on the bottom wall of the inner container 1, a heating plate 21 is embedded in the mounting hole 11, the heating plate 21 can move up and down relative to the bottom wall of the inner container 1 under the driving of a driving device 23, and the steam box has at least two states: in the first state, the top surface of the heating plate 21 is flush with the inner bottom surface of the inner container 1 to form a flat surface at the inner bottom surface of the inner container 1; in the second state, the top surface of the heating plate 21 is lower than the inner bottom surface of the inner container 1 to form a water storage groove 210 above the top surface of the heating plate 21. Like this under first state, the top surface of heating plate 21 flushes with the interior bottom surface of inner bag 1 to convenience of customers clears up the interior bottom surface of inner bag 1, and under first state, the top surface of heating plate 21 is less than the interior bottom surface of inner bag 1 and forms retaining recess 210 on the top surface of heating plate 21, and hydroenergy concentrates on this retaining recess 210 like this, thereby improves the heating efficiency of heating plate 21 to water, and then improves the emergence efficiency of steam. Further, a sealing ring 22 capable of extending up and down is connected between the edge of the mounting hole 11 and the periphery of the heating plate 21 along the circumferential direction, and the sealing ring 22 is made of a high temperature resistant material, so that the water storage groove 210 can be formed better along with the downward movement of the heating plate 21, and the water leakage phenomenon of the water storage groove 210 can be avoided. In addition, the driving device 23 is a wax motor disposed below the inner container 1, and a power output shaft of the wax motor extends up and down and is fixed to the bottom of the heating plate 21, so that the water storage groove 210 can be formed better along with the downward movement of the heating plate 21, and the heating plate 21 can also move up better to form a straight surface with the inner bottom surface of the inner container 1, thereby facilitating the cleaning of the condensed water on the inner bottom surface of the inner container 1.

Further, a water wiping component 3 is arranged in the inner container 1, the waterway system includes a water tank 4, the water wiping component 3 includes a water wiping strip 31, a driving mechanism 32 for driving the water wiping strip 31 to move along the inner bottom surface of the inner container 1, and a water drainage groove 33, the water drainage groove 33 is formed on the inner bottom surface of the inner container 1, a water guiding opening (not shown) is formed on a groove wall of the water drainage groove 33, a water return opening 41 is formed on the water tank 4, and the water guiding opening is in fluid communication with the water return opening 41. The water scraping strip 31 moves along the inner bottom surface of the inner container 1 to scrape the condensed water into the water drainage groove 33, so that the condensed water accumulated on the inner bottom surface of the inner container 1 can be cleaned conveniently, the condensed water accumulated in the water drainage groove 33 flows back to the water tank 4 through the water guide port and the water return port 41, and the condensed water is cleaned and recycled. In this embodiment, the wiper strip 31 is disposed along the front-back direction of the inner container 1 and can move back and forth along the left-right direction of the inner container 1 under the driving of the driving mechanism 32, the two drainage grooves 33 are respectively disposed at the left and right ends of the inner container 1, each drainage groove 33 extends along the front-back direction of the inner container 1, the water guiding ports are respectively disposed on the bottom wall of each drainage groove 33, and each water guiding port is respectively communicated with the water return port 41 of the water tank 4 through the water return pipe 91, so that the wiper strip 31 can better clean water on the inner bottom surface of the inner container 1. In order to further improve the water return efficiency, a water return pump 92 is provided on the water return pipe 91. The driving mechanism 32 includes a screw 321 and a wiper motor 322 for driving the screw 321 to rotate, the screw 321 is disposed at the rear side of the inner container 1 cavity along the left and right direction of the inner container 1, a nut case 323 is fixed at the rear end of the wiper strip 31, and the nut case 323 is screwed to the screw 321 to form a screw transmission pair. Therefore, the wiper strip 31 can move along the inner bottom surface of the liner 1 more stably under the driving of the driving mechanism 32. Preferably, the nut case 323 is fixed with a guide case 324, and the rear side of the inner chamber of the inner container 1 is provided with a guide rod 325 along the left-right direction, and the guide case 324 is fitted over the guide rod 325 and can move back and forth along the guide rod 325, so that the wiper strip 31 can move along the screw 321 more smoothly by the guide rod 325 and the guide case 324.

Further, among the prior art, the water tank 4 is generally arranged on the upper mounting plate, and the mounting space on the upper mounting plate is small (components such as an exhaust passage need to be mounted), so the volume of the water tank 4 is small, the steam box in the embodiment further comprises a door body 12 which can cover the opening on the front side of the inner container 1, the water tank 4 is arranged in the door body 12, the mounting space inside the door body 12 is relatively large, and the volume of the water tank 4 is large (can be as large as nearly 3L) compared with the prior art. Preferably, in this embodiment, the outer shape of the water tank 4 is a flat plate and the size of the flat plate matches the size of the longitudinal section of the door 12, so that the volume of the water tank 4 can be made as large as possible. Still further, the door body 12 includes a first door panel 12a located at the outer side and a second door panel 12b located behind the first door panel 12a, an installation gap (not shown) is formed between the first door panel 12a and the second door panel 12b, and the water tank 4 is disposed in the installation gap, so that the outer surface of the door body 12 can be cooled through the water tank 4, and a user is prevented from being scalded due to high temperature of the outer surface of the door body 12 in the cooking process.

In addition, in this embodiment, the nut case 323 is provided with a magnetic block 326, and further includes a position sensor 327 capable of forming a magnetic attraction with the magnetic block 326 and electrically connecting with the wiper motor 322, and the back surface of the inner container 1 is provided with a guide rail 328 for the position sensor 327 to move back and forth along the left and right directions of the inner container 1. The position of the wiper strip 31 on the bottom surface in the water tank 4 can be monitored by the cooperation of the magnet 326 and the position sensor 327, so that the condensed water on the bottom surface in the water tank 4 can be cleaned better. The door body 12 is rotated with respect to the opening of the inner container 1 by a rotating shaft 121, and a door angle sensor 122 is mounted on the rotating shaft 121, the door angle sensor 122 and the position sensor 327 are electrically connected to the driving device 23, respectively, and the door angle sensor 122 is electrically connected to the wiper motor 322. When the cooking is finished, the user opens the door body 12, the wiper strip 31 is in the initial position (located the right side of inner bag 1 in this embodiment), door angle sensor 122 and position inductor 327 respectively send door body 12 state information and wiper strip 31's position information for drive arrangement 23, drive arrangement 23 works and drives heating plate 21 to move up, heating plate 21 top surface flushes with inner bag 1 inner bottom surface, it removes and clears up the comdenstion water on the inner bag 1 inner bottom surface to scrape water motor 322 drive wiper strip 31, the distance that wiper strip 31 removed is monitored in real time through position inductor 327, when door body 12 is opened completely, wiper strip 31 just in time removes to the left side by inner bag 1's right side (next time scrape water and remove to the right side by inner bag 1 left side), and the comdenstion water on the inner bag 1 inner bottom surface also finishes the clearance, promote user's use and experience.

Further, in this embodiment, the part of the first door panel 12a forms the front side wall of the water tank 4, and the front side wall of the water tank 4 is transparent and visible, so that a user can observe the water amount in the water tank 4 through the transparent part of the first door panel 12a, and water can be added into the water tank 4 in time when the water tank 4 is lack of water. Still further, in order to better observe the water level in the water tank 4, a water level float assembly 51 is arranged in the water tank 4, and the water level float assembly 51 comprises a first float rod 511 vertically arranged in the water tank 4 and a water level float 512 sleeved on the first float rod 511 and capable of floating up and down along the first float rod 511 along with the water level in the water tank 4. Preferably, in this embodiment, the water level float 512 is colored red, so that it is more convenient for a user to observe the water level in the water tank 4 through the water level float 512.

Further, the waterway system also comprises a water inlet assembly 6 and a water outlet assembly 7, wherein the water inlet assembly 6 comprises a first water inlet pipe 61, a water inlet pump 62, a second water inlet pipe 63 and a water absorption long pipe 64, the outer surface of the door body 12 is provided with a hollow handle 13, the long water absorption tube 64 is accommodated in the inner cavity of the handle 13, the front surface of the handle 13 is provided with a window 131 for exposing the long water absorption tube 64, the window 131 is hinged with a flip 132 capable of covering the window 131, one end of the long water-absorbing pipe 64 is communicated with one end of a water outlet joint 65 arranged at the back side of the handle 13, the other end of the long water-absorbing pipe can be communicated with an external water source, one end of the first water inlet pipe 61 is communicated with the water inlet 62 of the water tank 4, the other end of the first water inlet pipe is communicated with the water outlet of the water inlet pump 62, one end of the second water inlet pipe 63 is communicated with the water inlet of the water inlet pump 62, and the other end of the second water inlet pipe is. The water is conveniently fed into the water tank 4 through the water inlet assembly 6, and an external water source can be conveniently connected through the water suction long pipe 64, so that the cooking time of the steam box can be theoretically infinitely long. In this embodiment, in order to further facilitate the reading of the amount of water in the water tank 4 and the introduction of water into the water tank 4, a float assembly 52 for full water and short water is provided in the water tank 4, the full-water and water-deficient float assembly 52 comprises a second float rod 521 vertically arranged in the water tank 4, a full-water section 5211 and a water-deficient section 5212 are respectively arranged at the upper end and the lower end of the second float rod 521, the full water section 5211 and the water shortage section 5212 are respectively sleeved with a full water float 522 and a water shortage float 523 with magnetism, the full water section 5211 and the water shortage section 5212 have a full water level point (not shown) and a water shortage level point (not shown) respectively, and the water full position and the water shortage position are respectively provided with a water full magnetic reed switch (not shown) and a water shortage magnetic reed switch (not shown), the full-water floater 522 and the water-deficient floater 523 can respectively trigger the full-water reed switch and the water-deficient reed switch through the magnetic attraction effect, and the full water reed switch and the water-short reed switch are respectively connected with the water inlet pump 62 through electric signals. Thus, when the magnetic reed switch is opened for water shortage, the water inlet pump 62 is turned on to feed water into the water tank 4, and when the magnetic reed switch is opened for water full, the water inlet pump 62 is turned off to stop feeding water into the water tank 4.

The water outlet assembly 7 comprises a water outlet pipe 71 and a water outlet pump 72 arranged on the water outlet pipe 71, the water outlet pipe 71 is arranged on a water outlet of the water tank 4, the inner side surface of the door body 12 is provided with a jet orifice 12d, the water outlet end of the water outlet pipe 71 is provided with a water outlet nozzle 713, and the water outlet of the water outlet nozzle 713 can be sprayed to the heating plate 21 in the inner cavity of the inner container 1. The water in the water tank 4 can be sprayed on the heating plate 21 through the water outlet nozzle 713 and the spray port 12d by the driving of the water outlet pump 72, and the steam is generated by heating. Specifically, the water outlet pipe 71 includes a first water outlet pipe 711 and a second water outlet pipe 712, wherein the first water outlet pipe 711 and the second water outlet pipe 712 are both vertically disposed in the water tank 4, the lower end of the first water outlet pipe 711 is located at the lower portion of the inner cavity of the water tank 4, the upper end of the first water outlet pipe 711 is exposed above the water tank 4 and is communicated with the water inlet of the water outlet pump 72 disposed outside the water tank 4, the upper end of the second water outlet pipe 712 is exposed above the water tank 4 and is communicated with the water outlet of the water outlet pump 72, and the lower end of the second water outlet pipe 712 passes through the water outlet located at the lower portion of the. By the design, the water outlet pipe 71 and the water outlet pump 72 can better output the water in the water tank 4 through the water outlet nozzle 713. In this embodiment, the bottom of the water tank 4 is further provided with a water outlet 43, so that the water in the water tank 4 can be discharged through the water outlet 43 when necessary.

In this embodiment, the injection port 12d is formed on the second door 12b in a circular shape, the inner side surface of the lower portion of the water tank 4 is recessed outward to form a mounting recess 40, the mounting recess 40 and the corresponding portion of the second door 12b define a mounting space, the injection port 12d and the water outlet nozzle 713 are both located in the mounting space, an opening and closing mechanism 8 for controlling the opening and closing of the injection port 12d is further provided in the mounting space, the opening and closing mechanism includes an opening and closing motor 81, a transmission gear group 82, an opening and closing gear 83, a rotating bracket 84, a mounting bracket 85 and a circular opening and closing plate 86, the transmission gear group 82 is used for transmitting the output power of the opening and closing motor 81 to the opening and closing gear 83, the rotating bracket 84 is formed in a circular shape and is fitted in the injection port 12d, and the rotating bracket 84 can rotate around the central axis of the injection port 12d along the opening edge of the injection port 12d, the opening and closing gear 83 is fixed to the inner disk surface of the rotating bracket 84 so as to be concentrically arranged, the mounting bracket 85 has a cylindrical shape, the mounting bracket 85 is horizontally arranged in the mounting space and concentrically arranged with the opening and closing gear 83, the outlet nozzle 713 is axially arranged in the mounting bracket 85 with its opening facing the ejection port 12d, the opening plate 86 is concentrically arranged between the rear end of the mounting bracket 85 and the opening and closing gear 83, the opening plate 86 has a size matching the size of the opening plate 86 with the size of the opening of the ejection port 12d, the opening plate 86 is formed by joining at least two fan-shaped support plates 861 having the same center, and the support plates 861 can be separated from each other or joined to each other by rotation of the opening and closing gear 83. When water needs to be sprayed into the inner container 1, the support plates 861 move in the direction of separation, the spray opening 12d is opened, and the water discharged from the water outlet nozzle 711 can be sprayed into the inner container 1 through the spray opening 12 d; when water is not needed to be sprayed to the inner container 1, the support plates 861 move towards the mutual splicing direction, the jet ports 12d are closed by the opening plate 86, and therefore water in the waterway can be effectively prevented from being polluted, for example, oil smoke, food residues and the like in the cooking process can enter the waterway system through the jet ports 12 d.

Further, in this embodiment, in order to achieve the opening and closing movement (i.e., the separation and the combining movement) of the brackets 861 of the opening and closing plate 86, the wheel surface of the opening and closing gear 83 is fixed with the rotating shafts 831 corresponding to the brackets 861 in the circumferential direction around the center hole thereof, one end of each bracket 861 in the same direction is pivotally connected to the corresponding rotating shaft 831 through the shaft hole 8612, the opening of the rear end of the mounting bracket 85 is fixed with the guide shafts 851 corresponding to the brackets 861 in the circumferential direction, each bracket 861 is provided with the arc-shaped guide grooves 8611, the free ends of the guide shafts 851 are inserted into the corresponding guide grooves 8611, when each bracket 861 rotates around the rotating shaft 831, the corresponding guide shafts 851 can slide back and forth along the corresponding guide grooves 8611, and when the free ends 861 of the guide shafts 851 are located at one end of the guide grooves 1, the brackets 861 are combined with each other to form the opening and closing plate 86, the injection port 12d is shielded by the opening plate 86, and when the free end of the guide shaft 851 is positioned at the other end of the guide groove 8611, the brackets 861 are completely separated and the injection port 12d is completely opened. In order to transmit the driving force of the opening and closing motor 81 to the opening and closing gear 83 and to drive the movement of each carrier 861 by the rotation of the opening and closing gear 83, the transmission gear set 82 includes a drive bevel gear 821 fixed to the output shaft of the opening and closing motor 81, a driven bevel gear 822, and a transmission gear 823, the driven bevel gear 822 is engaged with the drive bevel gear 821, the transmission gear 823 is engaged with the opening and closing gear 83, and the driven bevel gear 822 and the transmission gear 823 are dual gears.

Claims

1. The utility model provides a steam box, includes inner bag (1), its characterized in that, mounting hole (11) have been seted up on the diapire of inner bag (1), inlay in this mounting hole (11) and be equipped with heating plate (21), and this heating plate (21) can reciprocate for the diapire of inner bag (1) under drive arrangement (23) drive to at least, have two kinds of states: in the first state, the top surface of the heating plate (21) is flush with the inner bottom surface of the inner container (1) to form a flat plane at the inner bottom surface of the inner container (1); in the second state, the top surface of the heating plate (21) is lower than the inner bottom surface of the inner container (1) to form a water storage groove (210) above the top surface of the heating plate (21).

2. The steam box as claimed in claim 1, characterized in that a sealing ring (22) which can be extended and contracted up and down is connected between the hole edge of the mounting hole (11) and the periphery of the heating plate (21) along the circumferential direction.

3. The steam box as claimed in claim 1, characterized in that the drive means (23) is a wax motor arranged below the inner container (1), the power output shaft of which extends up and down and is fixed to the bottom of the heating plate (21).

4. A steam box according to any one of claims 1 to 3, wherein a wiper assembly (3) and a water tank (4) are disposed in the inner container (1), the wiper assembly (3) comprises a wiper strip (31), a driving mechanism (32) for driving the wiper strip (31) to move along the inner bottom surface of the inner container (1), and a drainage groove (33), the drainage groove (33) is opened on the inner bottom surface of the inner container (1) and a water guiding opening is opened on a wall of the drainage groove (33), and the water tank (4) is opened with a water return opening (41) which is in fluid communication with the water return opening (41).

5. The steam box according to claim 4, further comprising a door body (12) capable of covering the front opening of the inner container (1), wherein the water tank (4) is disposed in the door body (12), the wiper strips (31) are disposed along the front and rear direction of the inner container (1) and can move back and forth along the left and right direction of the inner container (1) under the driving of the driving mechanism (32), the two drainage grooves (33) are respectively disposed at the left and right ends of the inner container (1), the drainage grooves (33) respectively extend along the front and rear direction of the inner container (1), the water guide openings are respectively opened on the bottom wall of the drainage grooves (33), and the water guide openings are respectively communicated with the water return opening (41) of the water tank (4) through a water return pipe (91).

6. The steam box as claimed in claim 5, characterized in that the driving mechanism (32) comprises a screw (321) and a wiper motor (322) for driving the screw (321) to rotate, the screw (321) is arranged at the rear side of the inner cavity of the inner container (1) along the left and right direction of the inner container (1), the rear end of the wiper strip (31) is fixed with a nut sleeve (323), and the nut sleeve (323) is screwed on the screw (321) to form a screw transmission pair.

7. The steam box as claimed in claim 6, characterized in that a guide sleeve (324) is fixed on the nut sleeve (323), a guide rod (325) is arranged at the rear side of the inner cavity of the inner container (1) along the left and right direction, and the guide sleeve (324) is sleeved on the guide rod (325) and can move back and forth along the guide rod (325).

8. The steam box as claimed in claim 6, characterized in that the nut case (323) is provided with a magnetic block (326), and further comprises a position sensor (327) which can form magnetic attraction with the magnetic block (326) and is electrically connected with the wiper motor (322), and the back of the inner container (1) is provided with a guide rail (328) for the position sensor (327) to move back and forth along the left and right directions of the inner container (1).

9. The steam box as claimed in claim 8, characterized in that the door body (12) can rotate relative to the opening of the inner container (1) through a rotating shaft (121) thereon, and the rotating shaft (121) is provided with a door angle sensor (122) which is connected with the position sensor (327) through an electric signal.

10. The steam box as claimed in claim 5, wherein the door body (12) comprises a first door panel (12a) located at the outer side and a second door panel (12b) located behind the first door panel (12a), the first and second door panels (12a, 12b) forming a mounting gap therebetween, the water tank (4) being disposed in the mounting gap, the first door panel (12a) being one side wall of the water tank (4) and the first door panel (12a) being visible.

11. The steam box as claimed in claim 10, wherein a water level float assembly (51) is provided in the water tank (4), and the water level float assembly (51) comprises a first float rod (511) vertically provided in the water tank (4) and a water level float (512) sleeved on the first float rod (511) and capable of floating up and down along the first float rod (511) with the water level in the water tank (4).

12. The steam box as claimed in claim 5, further comprising a water inlet assembly (6), wherein the water inlet assembly (6) comprises a first water inlet pipe (61), a water inlet pump (62), a second water inlet pipe (63) and a long water absorption pipe (64), a hollow handle (13) is arranged on the outer surface of the door body (12), the long water absorption pipe (64) is accommodated in the inner cavity of the handle (13), a window (131) for exposing the long water absorption pipe (64) is arranged on the front surface of the handle (13), a flip cover (132) capable of covering the window (131) is hinged on the window (131), one end of the long water absorption pipe (64) is communicated with one end of a water outlet joint (65) arranged on the back side of the handle (13), the other end of the long water absorption pipe is communicated with an external water source, one end of the first water inlet pipe (61) is communicated with the water inlet (42) of the water tank (4), and the other end of the first water inlet pipe is communicated with the water outlet of the water inlet pump, one end of the second water inlet pipe (63) is communicated with the water inlet of the water inlet pump (62), and the other end of the second water inlet pipe is communicated with the other end of the water outlet joint (65).

13. The steam box as claimed in claim 10, characterized in that a water full and water short float assembly (52) is arranged in the water tank (4), the full-water and water-lack floater component (52) comprises a second floating rod (521) vertically arranged in the water tank (4), the upper end and the lower end of the second floating rod (521) are respectively provided with a full water section (5211) and a water-deficient section (5212), the full water section (5211) and the water shortage section (5212) are respectively sleeved with a full water float (522) and a water shortage float (523) with magnetism, the water full section (5211) and the water short section (5212) are respectively provided with a water full site and a water short site, and the water-full magnetic reed switch and the water-short magnetic reed switch are respectively arranged on the water-full position point and the water-short position point, the full water floater (522) and the water-deficient floater (523) can respectively trigger the full water magnetic reed switch and the water-deficient magnetic reed switch through the magnetic attraction effect, and the water-full magnetic reed switch and the water-short magnetic reed switch are respectively connected with an electric signal of the water inlet pump (62).

14. The steam box according to claim 10, further comprising a water outlet assembly (7), wherein the water outlet assembly (7) comprises a water outlet pipe (71) and a water outlet pump (72) arranged on the water outlet pipe (71), the water outlet pipe (71) is arranged on the water outlet (43) of the water tank (4), a jet orifice (12d) is arranged on the inner side surface of the door body (12), a water outlet nozzle (711) is arranged at the water outlet end of the water outlet pipe (71), and the outlet water of the water outlet nozzle (711) can be jetted to the heating plate (21) in the inner cavity of the inner container (1) through the jet orifice (12 d).

15. The steam box according to claim 14, wherein the water outlet pipe (71) comprises a first water outlet pipe (711) and a second water outlet pipe (712), wherein the first water outlet pipe (711) and the second water outlet pipe (712) are both vertically arranged in the water tank (4), the lower end of the first water outlet pipe (711) is positioned at the lower part of the inner cavity of the water tank (4), the upper end of the first water outlet pipe is exposed above the water tank (4) and is communicated with the water inlet of the water outlet pump (72) arranged outside the water tank (4), the upper end of the second water outlet pipe (712) is exposed above the water tank (4) and is communicated with the water outlet of the water outlet pump (72), and the lower end of the second water outlet pipe (712) passes through the water outlet (43) positioned at the lower part of the water tank (4) and is provided with the water.

16. The steam box as claimed in claim 14, wherein the injection port (12d) is circular and is opened on the second door panel (12b), the inner side of the lower part of the water tank (4) is recessed outwards to form a mounting groove (40), the mounting groove (40) and the corresponding part of the second door panel (12) enclose a mounting space, the injection port (12d) and the water outlet nozzle (713) are both located in the mounting space, and the mounting space is further provided with an opening and closing mechanism (8) for controlling the opening and closing of the injection port (12d),

the opening and closing mechanism (8) comprises an opening and closing motor (81), a transmission gear set (82), an opening and closing gear (83), a rotating bracket (84), a mounting bracket (85) and a circular opening and closing plate (86), wherein the transmission gear set (82) is used for transmitting the output power of the opening and closing motor (81) to the opening and closing gear (83), the rotating bracket (84) is disc-shaped and is embedded in the jet opening (12d), the rotating bracket (84) can rotate along the edge of the jet opening (12d) by taking the central shaft of the jet opening (12d) as the center, the opening and closing gear (83) is fixed on the inner disc surface of the rotating bracket (84) in a concentric arrangement mode, the mounting bracket (85) is cylindrical in shape, the mounting bracket (85) is transversely arranged in the mounting space and is arranged concentrically with the opening and closing gear (83), the water outlet nozzle (713) is axially arranged in the mounting bracket (85) and the opening of the water outlet nozzle faces the jet opening (12d), the opening plate (86) is concentrically arranged and clamped between the rear end of the mounting bracket (85) and the opening and closing gear (83), the size of the opening plate (86) is matched with the size of the opening of the jet opening (12d), the opening plate (86) is formed by splicing at least two fan-shaped support plates (861) with the same circle center, and the support plates (861) can be separated from each other or spliced with each other under the rotation of the opening and closing gear (83).

17. The steam box as claimed in claim 16, characterized in that the wheel surface of the open-close gear (83) is fixed with a rotating shaft (831) corresponding to the brackets (861) in the circumferential direction with the center hole as the center, one end of each bracket (861) in the same direction is pivoted on the corresponding rotating shaft (831) through a shaft hole (8612), a guide shaft (851) corresponding to the brackets (861) in the one-to-one direction is fixed on the port of the rear end of the mounting bracket (85) in the circumferential direction, each bracket (861) is provided with a circular arc guide groove (8611), the free end of each guide shaft (851) is inserted into the corresponding guide groove (8611), when each bracket (861) rotates with the rotating shaft (831) as the center, the corresponding guide shaft (851) can slide back and forth along the corresponding guide groove (8611), and when the free end of the guide shaft (851) is positioned at one end of the guide groove (8611), the brackets (861) are mutually combined to form an open plate (86), the jet port (12d) is shielded by the open plate (86), and when the free end of the guide shaft (851) is positioned at the other end of the guide groove (8611), the brackets (861) are completely separated and the jet port (12d) is completely opened.

18. The steam box of claim 16, wherein the transmission gear set (82) comprises a driving bevel gear (821) fixed on the output shaft of the opening and closing motor (81), a driven bevel gear (822) and a transmission gear (823), the driven bevel gear (822) is engaged with the driving bevel gear (821), the transmission gear (823) is engaged with the opening and closing gear (83), and the driven bevel gear (822) and the transmission gear (823) are duplicate gears.