CN111616587A

CN111616587A - Integrated food steaming and baking oven

Info

Publication number: CN111616587A
Application number: CN202010449811.5A
Authority: CN
Inventors: 岳震; 李龙洋
Original assignee: 岳震
Current assignee: GUANGDONG SHUNDE CHENGHE ELECTRIC Co.,Ltd.
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-09-04
Anticipated expiration: 2040-05-25
Also published as: CN111616587B

Abstract

The invention belongs to the technical field of kitchen equipment, and particularly relates to an integrated food steaming and baking oven which comprises an oven body and an oven cover, wherein a working space for placing food is formed in the oven body; the box cover is connected to the box body through a hinge; a protective cover and a heating device are arranged in the working space in the box body; a circulating fan is arranged in the protective cover; an air outlet hole is formed in the working space; a steam nozzle is arranged in the working space; a first cavity is formed above the box body; a water tank is fixedly arranged in the first cavity; a second cavity is formed in the rear side of the box body; a steam generator is arranged in the cavity II; a circulating water pump is arranged in the cavity II; the circulating water pump, the steam generator and the water tank are connected through water pipes; the steam generator is connected with the steam nozzle through an air pipe; a steam discharge pipe is fixedly arranged in the cavity II; the invention has simple structure, can clean the water tank and the steam generator and avoid the existence of residual water.

Description

Integrated food steaming and baking oven

Technical Field

The invention belongs to the technical field of kitchen equipment, and particularly relates to an integrated food steaming and baking oven.

Background

After the use process of the common steaming oven is finished, part of water remained in the water path structure cannot be cleaned, if the water stays in the water path for a long time, the water is deteriorated, a user can cook food by using the machine again, and the deteriorated water can cause health problems; the water path structure of the traditional steaming and baking furnace mostly adopts the on-off of a valve body, utilizes the principle of a communicating vessel, controls the water flow of the water path by gravity, and can not actively clear the residual water in the water path.

In the prior art, some solutions exist, for example, in chinese patent with application number CN201810088311.6, before the steam oven executes the working program and/or after the steam oven stops executing the working program, the flushing program is executed, so that the waterway structure and the steam generator cooperate to flush the waterway of the steam oven; the flushing program comprises the following steps that a water inlet pump adds water into the steam generator, a water level meter of the steam generator monitors the water level in the steam generator in real time, and the water pump empties the water in the steam generator after the steam generator is filled with the water; only erode steam generator through the water pump in this scheme, erode impurity such as the incrustation scale that produces among the steam generator totally, but can not guarantee to clear up and do not have the residual water in the completion back steam generator, simultaneously, neglected the processing to the well residual water of water tank in this scheme, remaining water still can appear rotten in the long-time back water tank, arouses the health problem in the use afterwards.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problem that the water body is deteriorated due to the fact that residual water exists for a long time after the steaming and baking oven is used, the invention provides an integrated food steaming and baking oven.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention discloses an integrated food steaming and baking oven, which comprises an oven body and an oven cover, wherein a working space for placing food is formed in the oven body; the working space is communicated with the outside, and an opening of the working space is positioned on the side surface of the box body; the box cover is fixedly connected to the box body; the box covers are connected through hinges; when the box cover is attached to the box body, the opening of the closed working space is closed; a protective cover is arranged in the working space in the box body; the protective cover is over against the opening of the box body and is positioned in the middle of the side face where the protective cover is positioned; a circulating fan is arranged in the protective cover; a heating device is arranged in the working space in the box body; the heating device is positioned in the middle of the lower surface of the working space; an air outlet is formed in the right lower corner of the side wall, which is opposite to the opening, in the working space; steam spray heads are arranged at the upper right corner, the upper left corner and the lower left corner of the side wall, which is opposite to the opening, in the working space; a steam outlet is arranged above the box body; a first cavity is formed above the box body; the first cavity is positioned in the box body and is not communicated with the working space in the box body; a water tank is fixedly arranged in the first cavity; a second cavity is formed in the rear side of the box body; the cavity II is positioned in the box body, and the cavity I, the cavity II and the working space are not communicated with each other; a steam generator is arranged in the cavity II; a circulating water pump is arranged in the cavity II; the circulating water pump, the steam generator and the water tank are connected through water pipes; the steam generator is connected with the steam nozzle through an air pipe; a steam discharge pipe is fixedly arranged in the cavity II; one end of the steam discharge pipe is communicated with the air outlet hole, and the other end of the steam discharge pipe is communicated with the steam outlet; the steam discharge pipe is S-shaped and is vertically arranged in the cavity II; a baffle is arranged in the steam discharge pipe; the baffle is a thin sheet made of metal copper; the surface of the baffle plate and the inner surface of the steam discharge pipe are subjected to hydrophobic treatment; the baffle plate is parallel to the side wall of the cavity II close to the working space outlet; a mounting frame is fixedly arranged in the steam outlet; an inward annular bulge is arranged at one end, close to the steam discharge pipe, in the steam outlet; an elastic plate is arranged in the steam outlet; the elastic plate is positioned above the annular bulge; a second spring is arranged in the steam outlet; the second spring is a compression spring and is positioned between the elastic plate and the mounting frame;

when the machine works, a waste water outlet of the water tank is closed, then a proper amount of tap water is added into the water tank, then food raw materials to be processed are put into a working space in the box body, a box cover is closed, a heating device is started, a circulating water pump is controlled to inject water into a steam generator, meanwhile, a heating plate in the steam generator is started, the steam generator generates steam and is led into the working space through an air pipe, the food raw materials in the working space are heated and baked through heat generated by the heating device, meanwhile, the food raw materials are steamed through high-temperature steam generated by the steam generator, moisture of food is guaranteed not to be lost, processed food has better quality and better taste, meanwhile, in the processing process, a circulating fan arranged below a protective cover works to push heat in the working space to circulate, and temperature consistency in the working space is guaranteed, the situations that food is half-cooked or parts of the food are scorched due to temperature difference are avoided, meanwhile, high-temperature steam is continuously generated by a steam generator and enters a working space, the residual steam or the steam with reduced temperature enters a steam climbing pipe from an air outlet hole at the lower right corner of the working space and is finally discharged through a steam outlet, excessive steam is prevented from being accumulated in the working space, the pressure in the working space exceeds a safety threshold value, danger is generated, meanwhile, the temperature rise caused by high pressure in the working space is avoided, the food is prevented from being influenced by high temperature, the quality and the taste of the food are reduced, meanwhile, the steam enters a steam discharge pipe, and the steam passes through the steam discharge pipe due to the fact that the S-shaped shape of the steam discharge pipe increases the length of the steam, the steam temperature can be effectively reduced, moisture in the steam is condensed in the steam discharge pipe and flows back to the working space along the S-shaped pipe, the steam oven falls on the lower surface of a working space, avoids direct discharge of steam, causes diffusion of steam, prevents high temperature carried by diffused steam from scalding operators and preventing diffused steam from influencing sight, influences the use of operators, simultaneously avoids condensation on the surface of an object after the steam is directly discharged to cause dirtiness of the object, increases cleaning work, simultaneously improves the difficulty of steam discharge under the condition of increasing the length of the steam discharge by the S-shaped steam discharge pipe, increases the steam pressure in the working space within a certain limit, contributes to the temperature rise in the working space, improves the steaming and baking effect, improves the quality and taste of processed food, simultaneously avoids liquid residue after the steam condensation due to the S-shaped shape of the steam discharge pipe, prevents residual liquid from breeding bacteria, influences food sanitation, and simultaneously reduces the cleaning difficulty of operators, simultaneously, the separation blade of setting in the steam discharge pipe, increase steam exhaust's resistance that can be further, improve the steam pressure in the working space, and simultaneously, the separation blade of setting can also promote the surface area in the steam discharge pipe, accelerate the condensation rate of the steam in the steam, it causes the pollution to avoid containing too much steam in the steam through steam outlet exhaust, and simultaneously, the compression spring who sets up in steam outlet department can guarantee with the elastic plate that only steam pressure surpasses after the certain degree, steam just can discharge through the steam discharge pipe, prevent that too much steam from passing through steam discharge pipe and discharging, cause steam pressure not enough in the working space, influence the processing of food, make the quality and the taste of the food of processing completion descend.

Preferably, the steam generator is rectangular and is vertically arranged in the second cavity; an accommodating cavity is arranged in the steam generator; a heating plate is arranged in the accommodating cavity; the heating plate is obliquely arranged, and the part on the left side is lower; the heating plate is fixedly provided with a heat conducting rod; the heat conducting rods are uniformly distributed; the upper ends of the heat conducting rods are positioned at the same height and are not in contact with the inner wall of the accommodating cavity of the steam generator; the lower surface of the heating plate is fixedly provided with a heat-conducting plate; the heat conducting plates are uniformly distributed; the lower ends of the heat conducting plates are positioned at the same height and do not contact the inner wall of the accommodating cavity; the heat conducting plate is parallel to the side face of the cavity II in which the steam generator is arranged; the circulating water pump is communicated with the steam generator through a water pipe II; the circulating water pump is communicated with the water tank through a first water pipe; the steam generator is communicated with the water tank through a third water pipe; the third water pipe is provided with an electromagnetic valve; when in work, water in the water tank flows between the steam generator and the water tank under the action of the circulating water pump in a one-way mode through the first water pipe, the second water pipe and the third water pipe; the joint of the water pipe II and the steam generator is positioned above the heating plate; the joint of the water pipe III and the steam generator is positioned above the heating plate; the joint of the water pipe II and the steam generator is positioned below the joint of the water pipe III and the steam generator; the upper part and the lower part of the heating plate in the steam generator are communicated through a first air pipe; the connection part of the first air pipe and the space above the heating plate is positioned right above the steam generator; the joint of the first air pipe and the space below the heating plate is positioned on the right side surface of the steam generator, and the joint is close to the higher end of the heating plate; a steam splitter is fixedly arranged in the cavity II; the steam splitter is positioned at the lower right part of the steam generator; the steam splitter is communicated with the steam generator through a second air pipe; the joint of the second air pipe and the steam generator is positioned on the right side surface of the steam generator and is close to the lower surface of the accommodating cavity of the steam generator; the lower surface of the accommodating cavity is inclined, and the position close to the connection part of the second air pipe and the steam generator is lowest; the steam flow divider is communicated with a steam nozzle at the upper right corner in the working space through a third air pipe; the steam generator is communicated with a steam nozzle at the lower left corner in the working space through a fifth air pipe; the steam generator is communicated with a steam nozzle at the upper left corner in the working space through a sixth air pipe; the third air pipe, the fifth air pipe and the sixth air pipe are respectively provided with an electromagnetic valve;

when the steam generator works, after the circulating water pump is started and the electromagnetic valve on the third water pipe is closed, water in the water tank enters the steam generator, steam is generated in the steam generator under the action of the heating plate in the steam generator, meanwhile, because the electromagnetic valve on the third water pipe is closed, the steam in the steam generator enters the space below the heating plate of the steam generator through the first air pipe and finally enters the steam splitter through the second air pipe, through the action of the steam splitter, the steam is split and then reaches the steam spray head in the working space through the third air pipe, the fifth air pipe and the sixth air pipe and is sprayed into the working space through the steam spray head, meanwhile, because of the heat conducting rod arranged above the heating plate, heat generated by the heating plate can be further transferred to the water entering the steam generator, thereby accelerating the generation speed of the steam and improving the temperature lifting speed in the working space, the processing speed of food is accelerated, the waiting time of an operator is reduced, the use satisfaction of the operator is improved, meanwhile, when steam enters the space below the heating plate, the steam can be heated again when passing through due to the heat conducting plate arranged on the lower surface of the heating plate, the temperature of the steam is further increased, the temperature increasing speed in a working space is accelerated when the steam is used, and the waiting time of the operator is reduced; after the processing is finished, the electromagnetic valve on the third water pipe is opened, the circulating water pump is controlled to continuously work, water in the water tank is continuously flushed in the steam generation process, scale impurities generated in the working process of the steam generator are flushed completely, meanwhile, after the circulating flushing process is finished, the circulating water pump is reversed, water in the steam generator is pumped back into the water tank through the second water pipe and the first water pipe, water in the steam generator is prevented from remaining in the steam generator, bacteria breeding in the residual water in the steam generator is avoided, meanwhile, the residual water in the steam generator is prevented from being steamed again when the steaming and baking furnace is used next time, harmful substances are generated, the health is influenced, meanwhile, as the heating plate in the steam generator is obliquely arranged, the position of the heating plate close to the joint of the second water pipe and the steam generator is lower, when the residual water in the steam generator is reversely pumped out by the circulating water pump, the water in the steam generator automatically gathers together under the action of gravity, so that the water is conveniently drained, the residue in the steam generator is effectively avoided, meanwhile, after the water is drained, partial water drops in the steam generator are evaporated due to the residual heat of the heating plate, the water in the steam generator is ensured not to remain, the germ breeding and the health influence of the residual water are avoided, meanwhile, due to the inclined lower surface of the accommodating cavity, the water drops generated in the space below the heating plate in the working process of the steam generator enter the air pipe II and finally enter the working space along with the steam, after the steam generator is stopped, the residual water drops in the space below the heating plate are gradually evaporated under the influence of the residual heat of the heating plate, the water drops residue in the space below the heating plate of the steam generator is ensured not to exist, meanwhile, the water residue in the steam generator is avoided, and the drying after the steam generator is stopped is ensured, bacteria are prevented from breeding in the steam generator, so that the sanitation of an internal system of the steaming and baking oven is guaranteed, and the safety and sanitation of food made by using the steaming and baking oven are guaranteed.

Preferably, a movable plate is installed in the water tank and can freely move; a first spring is arranged in the water tank; the first spring is an extension spring and is positioned on the right side of the moving plate; an electric control valve is arranged on the water tank; the water tank is communicated with the steam splitter through a fourth air pipe; the connection part of the air pipe IV and the water tank is positioned on the right side of the moving plate and below the electric control valve; the fourth air pipe is provided with an electromagnetic valve; a water injection port is arranged in the first cavity; the water injection port is communicated with the water tank, and the joint of the water injection port and the water tank is positioned on the water tank and is opposite to the side surface of the movable plate; a sealing cover is arranged on the water filling port; the sealing cover extends out of the upper part of the box body;

when the steam oven is in operation, after the steam oven is used and cleaned, when the steam generator is washed for a plurality of times by the circulating water pump, the continuous operation of the circulating water pump is stopped, the electromagnetic valves on the third air pipe, the fifth air pipe and the sixth air pipe are closed, the electric control valve on the water tank is closed, the waste water outlet on the water tank is opened, the steam generator is kept to continue to work, the steam generated by the steam generator enters the water tank through the fourth air pipe, so that the pressure in the space between the right side of the moving plate and the water tank is increased, the moving plate gradually moves to the left side, the residual water used in the water tank is squeezed, the residual water in the water tank is discharged from the opened waste water outlet, when the moving plate moves to the left side, the circulating water pump is controlled to pump reversely to pump the water in the steam generator out of the water tank and discharge the waste water outlet of the water tank, after the water in the water tank and the steam generator is completely drained, the circulating water pump is closed, the heating plate in the steam generator is closed, the electric control valve on the water tank is opened, the pressure in the space between the right side of the moving plate and the water tank is drained, after the pressure is reduced, the moving plate starts to move towards the right side under the action of the extension spring until the moving plate returns to the original position, the electromagnetic valves on the third air pipe, the fifth air pipe and the sixth air pipe are opened after the moving plate returns to the original position, the moving plate is pushed to move by the steam generated by the steam generator, the residual water in the water tank is completely drained, the residual water in the water tank after the use of the steam oven is finished is avoided, the generation of residual scale and the breeding of bacteria in the residual water in the water tank for a long time are prevented, peculiar smell is generated, the cleanness and the sanitation of the steam oven are influenced, the body health of a, can reduce the oven that evaporates and use the back clear degree of difficulty, simultaneously, guarantee the degree of driving the residual water, the residue that exists when avoiding artifical clearance leads to clean not thoroughly, influences the oven that evaporates and uses next time.

Preferably, the steam spray head comprises a fixed pipe and a rotating head; the fixed pipe is fixedly connected in the working space and is communicated with the air pipe; the rotating head is rotatably arranged on the fixed pipe; the rotating head and the fixed pipe are sealed, and the rotating head can rotate freely; a gas cavity is arranged in the rotating head; the gas cavity is cylindrical; a plurality of rotating air passages are uniformly formed in the rotating head and are communicated with the gas cavity; the rotating air channel is tangent to the air cavity; the rotary air passages are all positioned on the same plane; one end of the rotary air passage is communicated with the air cavity, and the other end of the rotary air passage is communicated with the external environment; an air passage is formed in the fixed pipe and is communicated with the air cavity in the rotating head;

when the steam oven is in use, due to the structure of the steam nozzle, when a large amount of steam is generated during high-power work of the steam generator, the steam nozzle can slowly rotate under the action of the steam to change the direction of steam injection and increase the speed of steam diffusion, so that the temperature rise in a working space is accelerated, meanwhile, the steam injected by rotation continuously changes the contact position of the steam and the working space, the contact range of the steam is increased, the inner wall of the working space is heated by high-temperature steam, oil stains attached to the inner wall of the working space are softened, the inner wall of the working space is washed by using the steam, stains on the inner wall of the working space are loosened and fall off, the cleaning is convenient, meanwhile, the area impacted by the steam can be effectively increased by rotating the injected steam, the cleaning effect is improved, the cleaning effect without dead corners is achieved, the sanitation degree in the working space is ensured, and the cleaning difficulty of the working space, the cleaning speed of an operator after use is improved, meanwhile, the stain attached to the inner wall of the working space can be impacted and fallen off through steam scouring, follow-up cleaning work is reduced, the stain on the inner wall of the working space can be gathered on the lower surface of the working space, and the follow-up cleaning work is facilitated.

Preferably, the heating device protrudes from the lower surface of the working space; the heating device is not in contact with the side wall of the working space, and the contact part of the heating device and the working space is chamfered; a heating pipe is arranged in the heating device; the upper surface of the heating device is a microcrystalline panel;

when the food steaming and baking oven works, food to be processed is placed in the working space and the oven cover is closed, the heating device is started, heat generated by the heating device rises from bottom to top to heat and bake the food, meanwhile, because the heating device protrudes out of the lower surface of the working space, when the food in the working space is heated by the steaming and baking oven, oil stain on the food falls down onto the heating device, the food slips off from the heating device and is gathered in a gap between the heating device and the side wall of the working space, the cleaning in the working space of the baking oven after the processing is finished is convenient, meanwhile, because the upper surface of the heating device is a microcrystal panel, the heat penetration performance of the heating device is excellent, besides normal steaming and baking operation, the microcrystal panel on the upper surface of the heating device can be directly used for operation, and a container for containing the food to be processed is directly placed on the microcrystal panel, only start heating device and fry in shallow oil roast processing to food, expand the application range of evaporating the oven, improve the rate of utilization of evaporating the oven, reduce use cost.

Preferably, the vertical side wall of the working space is provided with guide grooves which are uniformly distributed; the inner side surfaces of the working spaces are subjected to hydrophobic and oleophobic treatment;

when the food steaming and baking machine works on food, steam in a working space is also contacted with the food and heats the food, in the process of heating the food, grease components in the food drift along with the steam, when the steam is contacted with the inner wall of the working space, the steam is gradually attached to the inner wall of the working space and forms water drops with oil, because the guide grooves which are uniformly distributed are arranged on the vertical side wall of the working space, the water drops with oil attached to the inner wall of the working space are gradually gathered and slide down to the lower surface of the working space under the action of the guide grooves, because the heating device is arranged at the middle position of the lower surface of the working space, water drops sliding down on the inner wall of the working space are gathered in a gap between the heating device and the side wall of the working space, the collection of the water drops brought by the steam is finished, the difficulty of subsequent cleaning is reduced, and meanwhile, the water drops attached to the inner wall of the working space are prevented from being impacted by the steam, splashed out and dropped on the surface of the food, affecting the quality and mouthfeel of the food.

The invention has the following beneficial effects:

1. according to the integrated food steaming and baking oven, the water tank, the moving plate and the first spring are arranged, so that residual water in the water tank after use can be fully drained, and the phenomenon that the residual water in the water tank is deteriorated after long-time placement after use and the health of a user is influenced in later use is avoided.

2. According to the integrated food steam oven, the steam generator, the heating plate, the heat conducting rod, the heat conducting plate and the circulating water pump are arranged, so that the steam oven can be washed for a plurality of times under the action of the circulating water pump after being used, impurities such as scale and the like generated in the use process of the steam generator can be completely removed, meanwhile, after the steam generator is washed, the circulating water pump can be operated reversely, the residual water in the steam generator can be completely drained, and the situation that the residual water in the steam generator exists and the health of a user is influenced is avoided.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is a partial cross-sectional view of the steam generator of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 2 at A;

FIG. 5 is a partial cross-sectional view of a vapor nozzle of the present invention;

FIG. 6 is a partial cross-sectional view of vapor nozzle of the present invention;

in the figure: the steam generator comprises a box body 1, a box cover 11, a heating device 12, a protective cover 13, a diversion trench 14, an air outlet 15, a steam outlet 16, a first cavity 17, a second cavity 18, a water tank 2, a sealing cover 21, a moving plate 22, a first spring 23, an electric control valve 24, a water filling port 25, a waste water outlet 26, a circulating water pump 3, a first water pipe 31, a second water pipe 32, a third water pipe 33, a steam generator 4, a steam splitter 41, a first air pipe 42, a second air pipe 43, a third air pipe 44, a fourth air pipe 45, a fifth air pipe 46, a sixth air pipe 47, a heating plate 48, a heat conducting rod 481, a heat conducting plate 482, a steam discharge pipe 5, a baffle 51, an elastic plate 52, a second spring 53, a mounting frame 54, a steam nozzle 6.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, the integrated food steaming and baking oven of the present invention comprises a box body 1 and a box cover 11, wherein a working space for placing food is arranged in the box body 1; the working space is communicated with the outside, and an opening of the working space is positioned on the side surface of the box body 1; the box cover 11 is fixedly connected to the box body 1; the box cover 11 is connected through a hinge; when the box cover 11 is attached to the box body 1, the opening of the closed working space is closed; a protective cover 13 is arranged in the working space in the box body 1; the protective cover 13 is over against the opening of the box body 1 and is positioned in the middle of the side surface where the protective cover is positioned; a circulating fan is arranged in the protective cover 13; a heating device 12 is arranged in a working space in the box body 1; the heating device 12 is positioned in the middle of the lower surface of the working space; an air outlet hole 15 is formed in the right lower corner of the side wall, which is opposite to the opening, in the working space; steam nozzles 6 are arranged at the upper right corner, the upper left corner and the lower left corner of the side wall, which are opposite to the opening, in the working space; a steam outlet 16 is arranged above the box body; a first cavity 17 is formed above the box body 1; the first cavity 17 is positioned in the box body 1, and the first cavity 17 is not communicated with the working space in the box body 1; the water tank 2 is fixedly arranged in the first cavity 17; a second cavity 18 is formed in the rear side of the box body 1; the second cavity 18 is positioned in the box body 1, and the first cavity 17, the second cavity 18 and the working space are not communicated with each other; the second cavity 18 is internally provided with a steam generator 4; a circulating water pump 3 is arranged in the second cavity 18; the circulating water pump 3, the steam generator 4 and the water tank 2 are connected through water pipes; the steam generator 4 is connected with the steam nozzle 6 through an air pipe; a steam discharge pipe 5 is fixedly arranged in the second cavity 18; one end of the steam discharge pipe 5 is communicated with the air outlet 15, and the other end of the steam discharge pipe is communicated with the steam outlet 16; the steam discharge pipe 5 is S-shaped and is vertically arranged in the second cavity 18; a baffle plate 51 is arranged in the steam discharge pipe 5; the baffle 51 is a thin sheet made of metal copper; the surface of the baffle plate 51 and the inner surface of the steam discharge pipe 5 are subjected to hydrophobic treatment; the baffle plate 51 is parallel to the side wall of the second cavity 18 close to the outlet of the working space; a mounting frame 54 is fixedly arranged in the steam outlet 16; an inward annular bulge is arranged at one end of the steam outlet 16 close to the steam discharge pipe 5; an elastic plate 52 is arranged in the steam outlet 16; the elastic plate 52 is positioned above the annular bulge; a second spring 53 is arranged in the steam outlet 16; the second spring 53 is a compression spring and is positioned between the elastic plate 52 and the mounting frame 54;

when the food steaming machine works, the waste water outlet 26 of the water tank 2 is closed firstly, then a proper amount of tap water is added into the water tank 2, then food raw materials to be processed are put into a working space in the box body 1, the box cover 11 is closed, the heating device 12 is started, the circulating water pump 3 is controlled to inject water into the steam generator 4, meanwhile, the heating plate 48 in the steam generator 4 is started, the steam generator 4 generates steam and is led into the working space through an air pipe, the food raw materials in the working space are heated and baked through the heat generated by the heating device 12, meanwhile, the food raw materials are steamed through the high-temperature steam generated by the steam generator 4, the moisture of food is ensured not to be lost, the processed food has better quality and better taste, meanwhile, in the processing process, the circulating fan arranged below the protective cover 13 works to push the heat in the working space to circulate, the temperature of each part in the working space is ensured to be consistent, the condition that food is half-cooked or parts of the positions are scorched due to temperature difference is avoided, meanwhile, high-temperature steam generated by the steam generator 4 continuously enters the working space, the residual steam or the steam with reduced temperature enters the steam climbing pipe from the air outlet hole 15 at the lower right corner of the working space and is finally discharged through the steam outlet 16, the excessive steam is prevented from being accumulated in the working space, the pressure in the working space exceeds a safety threshold value to cause danger, meanwhile, the temperature rise caused by the high pressure in the working space is avoided, the food is prevented from being influenced by high temperature, the quality and the taste of the food are reduced, meanwhile, the steam enters the steam discharge pipe 5, the steam passes through the steam discharge pipe 5 due to the S-shaped structure of the steam discharge pipe 5, the steam temperature can be effectively reduced, and the moisture in the steam is condensed in the steam discharge pipe 5, and flows back to the working space along the S-shaped pipe body of the steam discharge pipe 5 and falls on the lower surface of the working space, thereby avoiding direct discharge of steam, causing diffusion of steam, preventing the operator from being scalded by high temperature carried by diffused steam and preventing the diffused steam from influencing the sight line and influencing the use of the operator, simultaneously avoiding condensation of the directly discharged steam on the surface of an object to cause dirtiness of the object and increasing the cleaning work, meanwhile, the S-shaped steam discharge pipe 5 can improve the difficulty of steam discharge under the condition of increasing the length of the steam discharge, thereby increasing the steam pressure in the working space within a certain limit, being beneficial to the temperature rise in the working space, further improving the steaming and baking effect, improving the quality and the taste of processed food, simultaneously, the S-shaped shape of the steam discharge pipe 5 can avoid liquid residue after steam condensation and preventing the residual liquid from breeding bacteria, influence food sanitation, and simultaneously, reduce the operator clearance degree of difficulty, and simultaneously, the separation blade 51 of setting in steam discharge pipe 5, increase steam exhaust's resistance that can be further, improve the steam pressure in the working space, and simultaneously, the separation blade 51 of setting can also promote the surface area in steam discharge pipe 5, accelerate the condensation rate of the steam in the steam, it causes the pollution to contain too much steam in the steam of avoiding through steam outlet 16 exhaust, and simultaneously, the compression spring and the elastic plate 52 of setting in steam outlet 16 department can guarantee that only steam pressure surpasses after the certain degree, steam just can discharge through steam discharge pipe 5, prevent that too much steam from passing through steam discharge pipe 5 and discharging, cause steam pressure not enough in the working space, influence the processing of food, make the quality and the taste of the food of processing completion descend.

As an embodiment of the present invention, the steam generator 4 is rectangular and vertically installed in the second cavity 18; an accommodating cavity is arranged in the steam generator 4; a heating plate 48 is arranged in the accommodating cavity; the heating plate 48 is obliquely arranged, and the part on the left side is lower; the heating plate 48 is fixedly provided with a heat conducting rod 481; the heat conducting rods 481 are uniformly distributed; the upper ends of the heat conducting rods 481 are positioned at the same height and do not contact the inner wall of the accommodating cavity of the steam generator 4; a heat conducting plate 482 is fixedly mounted on the lower surface of the heating plate 48; the heat conducting plates 482 are uniformly distributed; the lower ends of the heat conducting plates 482 are positioned at the same height and do not contact the inner wall of the accommodating cavity; the heat conducting plate 482 is parallel to the side surface of the cavity II 18 in which the steam generator 4 is arranged; the circulating water pump 3 is communicated with the steam generator 4 through a second water pipe 32; the circulating water pump 3 is communicated with the water tank 2 through a first water pipe 31; the steam generator 4 is communicated with the water tank 2 through a third water pipe 33; the third water pipe 33 is provided with an electromagnetic valve; when in work, water in the water tank 2 flows between the steam generator 4 and the water tank 2 through the first water pipe 31, the second water pipe 32 and the third water pipe 33 in a one-way mode under the action of the circulating water pump 3; the joint of the second water pipe 32 and the steam generator 4 is positioned above the heating plate 48; the joint of the third water pipe 33 and the steam generator 4 is positioned above the heating plate 48; the joint of the second water pipe 32 and the steam generator 4 is positioned below the joint of the third water pipe 33 and the steam generator 4; the upper part and the lower part of the heating plate 48 in the steam generator 4 are communicated through a first air pipe 42; the connection position of the first air pipe 42 and the space above the heating plate 48 is positioned right above the steam generator 4; the joint of the first air pipe 42 and the space below the heating plate 48 is positioned on the right side surface of the steam generator 4, and the joint is close to the higher end of the heating plate 48; a steam splitter 41 is fixedly arranged in the second cavity 18; the steam splitter 41 is located at the lower right of the steam generator 4; the steam splitter 41 is communicated with the steam generator 4 through a second air pipe 43; the joint of the second air pipe 43 and the steam generator 4 is positioned on the right side surface of the steam generator 4 and is close to the lower surface of the accommodating cavity of the steam generator 4; the lower surface of the accommodating cavity is inclined, and the position close to the joint of the second air pipe 43 and the steam generator 4 is the lowest; the steam splitter 41 is communicated with a steam nozzle 6 at the upper right corner in the working space through a third air pipe 44; the steam generator 4 is communicated with a steam nozzle 6 at the lower left corner in the working space through a fifth air pipe 46; the steam generator 4 is communicated with a steam nozzle 6 at the upper left corner in the working space through a sixth air pipe 47; the third air pipe 44, the fifth air pipe 46 and the sixth air pipe 47 are all provided with electromagnetic valves;

when the water circulation heating device works, after the water circulation pump 3 is started and the electromagnetic valve on the water pipe three 33 is closed, water in the water tank 2 enters the steam generator 4, steam is generated in the steam generator 4 under the action of the heating plate 48 in the steam generator 4, meanwhile, because the electromagnetic valve on the water pipe three 33 is closed, the steam in the steam generator 4 enters the space below the heating plate 48 of the steam generator 4 through the air pipe one 42, finally enters the steam splitter 41 through the air pipe two 43, through the action of the steam splitter 41, the steam is split and then reaches the steam nozzle 6 in the working space through the air pipe three 44, the air pipe five 46 and the air pipe six 47, and is sprayed into the working space through the steam nozzle 6, meanwhile, because of the heat conducting rod 481 arranged above the heating plate 48, the heat generated by the heating plate 48 can be more greatly transferred to the water entering the steam generator 4, meanwhile, when the steam enters the space below the heating plate 48, the heat conducting plate 482 arranged on the lower surface of the heating plate 48 enables the steam to be heated again when passing through, so that the temperature of the steam is further increased, the temperature increasing speed in the working space is increased when the steam is used, and the waiting time of the operator is reduced; after the processing is finished, the electromagnetic valve on the water pipe III 33 is opened, the circulating water pump 3 is controlled to work continuously, water in the water tank 2 is flushed continuously in the steam generation process, scale impurities generated in the steam generator 4 in the working process are flushed completely, meanwhile, after the circulating flushing process is finished, the circulating water pump 3 is reversed, water in the steam generator 4 is pumped back into the water tank 2 through the water pipe II 32 and the water pipe I31, water residues in the steam generator 4 are prevented, bacteria breeding caused by the water residues in the steam generator 4 is avoided, meanwhile, the water residues in the steam generator 4 are prevented from being steamed again when the steam oven is used next time, harmful substances are generated, the health is influenced, meanwhile, because the heating plate 48 in the steam generator 4 is obliquely arranged, the position of the heating plate 48 close to the joint of the water pipe II 32 and the steam generator 4 is lower, when the circulating water pump 3 evacuates the water residues in the steam generator 4 in the reverse direction, the water in the steam generator 4 is automatically gathered together under the action of gravity, so that the water is conveniently drained, the residue in the steam generator 4 is effectively avoided, meanwhile, after the water is drained, part of water drops in the steam generator 4 are evaporated due to the residual heat of the heating plate 48, so that the water in the steam generator 4 is ensured not to be remained, the germ breeding of the residual water is avoided, the health is influenced, meanwhile, due to the inclined lower surface of the accommodating cavity, the water drops generated in the space below the heating plate 48 in the working process of the steam generator 4 enter the air pipe II 43 and finally enter the working space along with the steam, after the steam generator 4 is stopped, the water drops remained in the space below the heating plate 48 are gradually evaporated under the influence of the residual heat of the heating plate 48, and the water drops residue is ensured not to exist in the space below the heating plate 48 of the steam generator 4, simultaneously, steam generator 4 does not have water to remain and can guarantee the drying after steam generator 4 stops to use, avoids the bacterium to breed in steam generator 4 to guarantee the health of steaming and baking stove internal system, guarantee to use the food safety and sanitation of steaming and baking stove preparation.

As an embodiment of the present invention, a moving plate 22 is installed in the water tank 2, and the moving plate 22 can move freely; a first spring 23 is arranged in the water tank 2; the first spring 23 is an extension spring and is positioned on the right side of the moving plate 22; an electric control valve 24 is arranged on the water tank 2; the water tank 2 is communicated with the steam splitter 41 through a fourth air pipe 45; the connection position of the air pipe IV 45 and the water tank 2 is positioned on the right side of the moving plate 22 and below the electric control valve 24; the fourth air pipe 45 is provided with an electromagnetic valve; a water injection port 25 is arranged in the first cavity 17; the water injection port 25 is communicated with the water tank 2, and the joint of the water injection port 25 and the water tank 2 is positioned on the side surface of the water tank 2, which is opposite to the moving plate 22; a sealing cover 21 is arranged on the water filling port 25; the sealing cover 21 extends out of the upper part of the box body 1;

when the steam oven is in operation, after the steam oven is used and cleaned, when the circulating water pump 3 washes the steam generator 4 for multiple times, the continuous operation of the circulating water pump 3 is stopped, the electromagnetic valves on the third air pipe 44, the fifth air pipe 46 and the sixth air pipe 47 are closed, the electronic control valve 24 on the water tank 2 is closed, the waste water outlet 26 on the water tank 2 is opened, the steam generator 4 is kept working continuously, the steam generated by the steam generator 4 enters the water tank 2 through the fourth air pipe 45, so that the pressure in the space between the right side of the moving plate 22 and the water tank 2 is increased, the moving plate 22 gradually moves towards the left side, the residual water in the water tank 2 after use is squeezed, the residual water in the water tank 2 is discharged from the opened waste water outlet 26, when the moving plate 22 moves to the left side, the residual water in the water tank 2 is discharged completely, the circulating water pump 3 is controlled to pump reversely, pumping water in the steam generator 4 into the water tank 2 and discharging the water from a waste water outlet 26 of the water tank 2, after the water in the water tank 2 and the water in the steam generator 4 are completely drained, closing the circulating water pump 3, closing a heating plate 48 in the steam generator 4, opening an electric control valve 24 on the water tank 2 to discharge the pressure in the space between the right side of the moving plate 22 and the water tank 2, after the pressure is reduced, under the action of a tension spring, starting the moving plate 22 to move to the right side until the moving plate returns to the original position, opening electromagnetic valves on a third air pipe 44, a fifth air pipe 46 and a sixth air pipe 47 after the moving plate 22 returns to the original position, pushing the moving plate 22 to move by steam generated by the steam generator 4 to drain all the water in the water tank 2, avoiding residual water in the water tank 2 after the use of the steam oven, preventing residual scale from being generated in the water tank 2 for a long time and preventing bacteria from being bred, produce the peculiar smell, influence the clean health of steaming and baking stove, influence the healthy of user, simultaneously, the action through movable plate 22 is with the whole evacuation of remaining water in the water tank 2, can reduce the clear degree of difficulty of steaming and baking stove use back, simultaneously, guarantees the degree of cleaing away residual water, the residue that exists when avoiding artifical clearance, leads to clean not thorough, influences the steaming and baking stove and uses next time.

As an embodiment of the present invention, the steam spray head 6 includes a fixed pipe 61 and a rotating head 62; the fixed pipe 61 is fixedly connected in the working space and is communicated with the air pipe; the rotating head 62 is rotatably mounted on the fixed pipe 61; the rotating head 62 and the fixed tube 61 are sealed, and the rotating head 62 can rotate freely; a gas cavity is arranged in the rotating head 62; the gas cavity is cylindrical; a plurality of rotating air passages 63 are uniformly formed in the rotating head 62, and the rotating air passages 63 are communicated with the air cavity; the rotating air channel 63 is tangent to the air cavity; the rotary air passages 63 are all positioned on the same plane; one end of the rotary air channel 63 is communicated with the air cavity, and the other end of the rotary air channel is communicated with the external environment; an air passage is formed in the fixed pipe 61 and is communicated with an air cavity in the rotating head 62;

when the steam oven is in use, due to the structure of the steam nozzle 6, when the steam generator 4 works at high power to generate a large amount of steam, the steam nozzle 6 can slowly rotate under the action of the steam to change the direction of steam injection and increase the speed of steam diffusion, so that the temperature rise in a working space is accelerated, meanwhile, the position of the steam in contact with the working space is continuously changed by rotating the injected steam, the contact range of the steam is increased, the inner wall of the working space is heated by high-temperature steam to soften oil stains attached to the inner wall of the working space, the inner wall of the working space is washed by the steam, so that stains on the inner wall of the working space are loosened and fall off, the cleaning is convenient, meanwhile, the area impacted by the steam can be effectively increased by rotating the injected steam, the cleaning effect is improved, the cleaning effect without dead corners is achieved, and the sanitation degree in, the cleaning difficulty of the working space after the steaming and baking furnace is used is reduced, the cleaning speed of an operator after the use is finished is improved, meanwhile, the attached stains on the inner wall of the working space can be impacted and fall off through steam washing, the follow-up cleaning work is reduced, the stains on the inner wall of the working space can be gathered on the lower surface of the working space, and the follow-up cleaning work is facilitated.

As an embodiment of the present invention, the heating device 12 protrudes from the lower surface of the working space; the heating device 12 is not in contact with the side wall of the working space, and the contact part of the heating device 12 and the working space is chamfered; a heating pipe is arranged in the heating device 12; the upper surface of the heating device 12 is a microcrystalline panel;

when the food steaming and baking oven works, after food to be processed is placed in a working space and the oven cover 11 is closed, the heating device 12 is started, heat generated by the heating device 12 rises from bottom to top to heat and bake the food, meanwhile, because the heating device 12 protrudes out of the lower surface of the working space, when oil stains on the food fall on the heating device 12 when the food in the working space is heated by the steaming and baking oven, the oil stains slide off the heating device 12 and are gathered in a gap between the heating device 12 and the side wall of the working space, so that the cleaning in the working space of the baking oven after the processing is finished is convenient, meanwhile, because the upper surface of the heating device 12 is a microcrystal panel, the heating device 12 has excellent heat penetration performance, and can be directly operated by using the microcrystal panel on the upper surface of the heating device 12 besides normal steaming and baking operation, a container for containing the food to be processed is directly placed on the microcrystal panel, only the heating device 12 is started to fry and bake food, the application range of the steaming and baking oven is expanded, the utilization rate of the steaming and baking oven is improved, and the use cost is reduced.

As an embodiment of the present invention, the vertical side wall of the working space is provided with uniformly distributed diversion trenches 14; the inner side surfaces of the working spaces are subjected to hydrophobic and oleophobic treatment;

when the food steaming and baking oven works, steam in a working space is also contacted with food and heats the food, in the process of heating the food, grease components in the food drift along with the steam, when the steam is contacted with the inner wall of the working space, the steam is gradually attached to the inner wall of the working space and forms water drops with oil, as the guide grooves 14 which are uniformly distributed are arranged on the vertical side wall of the working space, the water drops with oil attached to the inner wall of the working space are gradually gathered and slide down to the lower surface of the working space under the action of the guide grooves 14, as the heating device 12 is arranged at the middle position of the lower surface of the working space, water drops sliding down on the inner wall of the working space are gathered in a gap between the heating device 12 and the side wall of the working space, the collection of the water drops brought by the steam is completed, the difficulty of subsequent cleaning is reduced, and meanwhile, the water drops attached to the inner wall of the working space are prevented from being impacted by the steam sprayed by the steam, splashed out and dropped on the surface of the food, affecting the quality and mouthfeel of the food.

The specific working process is as follows:

when the machine works, the waste water outlet 26 of the water tank 2 is closed, then a proper amount of tap water is added into the water tank 2, then food raw materials to be processed are put into a working space in the box body 1, the box cover 11 is closed, the heating device 12 is started, the circulating water pump 3 is controlled to inject water into the steam generator 4, meanwhile, the heating plate 48 in the steam generator 4 is started, the steam generator 4 generates steam and is led into the working space through an air pipe, the food raw materials in the working space are heated and baked through heat generated by the heating device 12, meanwhile, the food raw materials are steamed through high-temperature steam generated by the steam generator 4, meanwhile, in the processing process, a circulating fan arranged below the protective cover 13 works, meanwhile, the steam generator 4 continuously generates high-temperature steam and enters the working space, and the rest steam or steam with reduced temperature, the steam enters the steam climbing pipe from the air outlet hole 15 at the lower right corner of the working space and is finally discharged through the steam outlet 16, meanwhile, the steam enters the steam discharge pipe 5, moisture in the steam is condensed in the steam discharge pipe 5 and flows back to the working space along the S-shaped pipe body of the steam discharge pipe 5 to fall on the lower surface of the working space, meanwhile, the S-shaped steam discharge pipe 5 can improve the difficulty of steam discharge under the condition of increasing the steam discharge length, so that the steam pressure in the working space is increased within a certain limit, meanwhile, the baffle 51 arranged in the steam discharge pipe 5 can further increase the resistance of steam discharge and improve the steam pressure in the working space, meanwhile, the baffle 51 can also improve the surface area in the steam discharge pipe 5 and accelerate the condensation speed of the steam in the steam, meanwhile, after the compression spring and the elastic plate 52 arranged at the steam outlet 16 can ensure that only the steam pressure exceeds a certain degree, the steam can be discharged through the steam discharge pipe 5, preventing the excessive steam from being discharged through the steam discharge pipe 5; after the circulating water pump 3 is started and the electromagnetic valve on the water pipe three 33 is closed, the water in the water tank 2 enters the steam generator 4, steam is generated in the steam generator 4 under the action of the heating plate 48 in the steam generator 4, meanwhile, because the electromagnetic valve on the water pipe three 33 is closed, the steam in the steam generator 4 enters the space below the heating plate 48 of the steam generator 4 through the air pipe one 42, finally enters the steam splitter 41 through the air pipe two 43, through the action of the steam splitter 41, the steam is split and then reaches the steam nozzle 6 in the working space through the air pipe three 44, the air pipe five 46 and the air pipe six 47, and is sprayed into the working space through the steam nozzle 6, meanwhile, because of the heat conducting rod 481 arranged above the heating plate 48, the heat generated by the heating plate 48 can be more greatly transferred to the water entering the steam generator 4, and at the same time, when steam enters the space below the heating plate 48, the steam can be heated again when passing through the heat conducting plate 482 mounted on the lower surface of the heating plate 48, so that the temperature of the steam is further raised; after the processing is finished, opening an electromagnetic valve on a water pipe III 33, simultaneously controlling a circulating water pump 3 to continuously work, continuously flushing water in a water tank 2 in the steam generation process, flushing scale impurities generated in the steam generator 4 in the working process completely, meanwhile, after the circulating flushing process is finished, reversing the circulating water pump 3, and pumping the water in the steam generator 4 back to the water tank 2 through a water pipe II 32 and a water pipe I31; when the steam oven is used and cleaned, after the steam generator 4 is washed for a plurality of times by the circulating water pump 3, the continuous operation of the circulating water pump 3 is stopped, the electromagnetic valves on the air pipe three 44, the air pipe five 46 and the air pipe six 47 are closed, the electric control valve 24 on the water tank 2 is closed, the waste water outlet 26 on the water tank 2 is opened, the steam generator 4 is kept to continue to work, the steam generated by the steam generator 4 enters the water tank 2 through the air pipe four 45, so that the pressure in the space between the right side of the moving plate 22 and the water tank 2 is increased, the moving plate 22 gradually moves towards the left side, the residual water after being used in the water tank 2 is squeezed, the residual water in the water tank 2 is discharged from the opened waste water outlet 26, when the moving plate 22 moves to the left side, after all the residual water in the water tank 2 is discharged, the circulating water pump 3 is controlled to reversely pump the water in the steam generator 4 into the water, and is discharged from the waste water outlet 26 of the water tank 2, after the water in the water tank 2 and the steam generator 4 are completely emptied, the circulating water pump 3 is closed, the heating plate 48 in the steam generator 4 is closed, the electric control valve 24 on the water tank 2 is opened, so that the pressure in the space between the right side of the moving plate 22 and the water tank 2 is discharged, after the pressure is reduced, the moving plate 22 starts to move to the right side under the action of the extension spring until the original position is recovered, and after the moving plate 22 returns to the original position, the electromagnetic valves on the air pipe three 44, the air pipe five 46 and the air pipe six 47 are opened; when the steam oven is used, due to the structure of the steam nozzle 6, the steam nozzle 6 can slowly rotate under the action of steam when the steam generator 4 works at high power to generate a large amount of steam; after the food to be processed is put into the working space and the box cover 11 is closed, the heating device 12 is started, heat generated by the heating device 12 rises from bottom to top to heat and bake the food, and meanwhile, as the heating device 12 protrudes out of the lower surface of the working space, when oil stains on the food fall on the heating device 12, the oil stains slide off the heating device 12 and are gathered in a gap between the heating device 12 and the side wall of the working space; when the food is processed by the steaming oven, because the guide grooves 14 which are uniformly distributed are arranged on the vertical side wall of the working space, water drops with oil attached to the inner wall of the working space are gradually gathered and slide down to the lower surface of the working space under the action of the guide grooves 14, the heating device 12 is arranged at the middle position of the lower surface of the working space, and the water drops which slide down on the inner wall of the working space are gathered in a gap between the heating device 12 and the side wall of the working space.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an integration food steaming and baking stove, includes box (1), case lid (11), its characterized in that: a working space for placing food is arranged in the box body (1); the working space is communicated with the outside, and an opening of the working space is positioned on the side surface of the box body (1); the box cover (11) is fixedly connected to the box body (1); the box covers (11) are connected through hinges; when the box cover (11) is attached to the box body (1), the opening of the closed working space is closed; a protective cover (13) is arranged in a working space in the box body (1); the protective cover (13) is over against the opening of the box body (1) and is positioned in the middle of the side face where the protective cover is positioned; a circulating fan is arranged in the protective cover (13); a heating device (12) is arranged in a working space in the box body (1); the heating device (12) is positioned in the middle of the lower surface of the working space; an air outlet hole (15) is formed in the right lower corner of the side wall, which is opposite to the opening, in the working space; steam spray heads (6) are arranged at the upper right corner, the upper left corner and the lower left corner of the side wall, which are opposite to the opening, in the working space; a steam outlet (16) is arranged above the box body; a first cavity (17) is formed above the box body (1); the first cavity (17) is positioned in the box body (1), and the first cavity (17) is not communicated with a working space in the box body (1); a water tank (2) is fixedly arranged in the first cavity (17); a second cavity (18) is formed in the rear side of the box body (1); the second cavity (18) is positioned in the box body (1), and the first cavity (17), the second cavity (18) and the working space are not communicated with each other; a steam generator (4) is arranged in the second cavity (18); a circulating water pump (3) is arranged in the second cavity (18); the circulating water pump (3), the steam generator (4) and the water tank (2) are connected through water pipes; the steam generator (4) is connected with the steam nozzle (6) through an air pipe; a steam discharge pipe (5) is fixedly arranged in the second cavity (18); one end of the steam discharge pipe (5) is communicated with the air outlet hole (15), and the other end is communicated with the steam outlet (16); the steam discharge pipe (5) is S-shaped and is vertically arranged in the second cavity (18); a baffle plate (51) is arranged in the steam discharge pipe (5); the baffle sheet (51) is a thin sheet made of metal copper; the surface of the baffle plate (51) and the inner surface of the steam discharge pipe (5) are subjected to hydrophobic treatment; the baffle plate (51) is parallel to the side wall of the second cavity (18) close to the outlet of the working space; a mounting frame (54) is fixedly arranged in the steam outlet (16); an inward annular bulge is arranged at one end, close to the steam discharge pipe (5), in the steam outlet (16); an elastic plate (52) is arranged in the steam outlet (16); the elastic plate (52) is positioned above the annular bulge; a second spring (53) is arranged in the steam outlet (16); the second spring (53) is a compression spring and is positioned between the elastic plate (52) and the mounting frame (54).

2. The integrated food steaming and baking oven of claim 1, wherein: the steam generator (4) is rectangular and is vertically arranged in the second cavity (18); an accommodating cavity is arranged in the steam generator (4); a heating plate (48) is arranged in the accommodating cavity; the heating plate (48) is obliquely arranged, and the part on the left side is lower; a heat conducting rod (481) is fixedly arranged on the heating plate (48); the heat conducting rods (481) are uniformly distributed; the upper ends of the heat conducting rods (481) are positioned at the same height and are not in contact with the inner wall of the accommodating cavity of the steam generator (4); a heat-conducting plate (482) is fixedly arranged on the lower surface of the heating plate (48); the heat conducting plates (482) are uniformly distributed; the lower ends of the heat conducting plates (482) are positioned at the same height and do not contact the inner wall of the accommodating cavity; the heat conducting plate (482) is parallel to the side surface of the cavity II (18) in which the steam generator (4) is arranged; the circulating water pump (3) is communicated with the steam generator (4) through a second water pipe (32); the circulating water pump (3) is communicated with the water tank (2) through a first water pipe (31); the steam generator (4) is communicated with the water tank (2) through a third water pipe (33); the third water pipe (33) is provided with an electromagnetic valve; when in work, water in the water tank (2) flows between the steam generator (4) and the water tank (2) through the water pipe I (31), the water pipe II (32) and the water pipe III (33) in a one-way mode under the action of the circulating water pump (3); the joint of the second water pipe (32) and the steam generator (4) is positioned above the heating plate (48); the joint of the third water pipe (33) and the steam generator (4) is positioned above the heating plate (48); the joint of the water pipe II (32) and the steam generator (4) is positioned below the joint of the water pipe III (33) and the steam generator (4); the upper part and the lower part of the heating plate (48) in the steam generator (4) are communicated through a first air pipe (42); the joint of the first air pipe (42) and the space above the heating plate (48) is positioned right above the steam generator (4); the joint of the first air pipe (42) and the space below the heating plate (48) is positioned on the right side surface of the steam generator (4), and the joint is close to the higher end of the heating plate (48); a steam splitter (41) is fixedly arranged in the second cavity (18); the steam splitter (41) is positioned at the lower right of the steam generator (4); the steam splitter (41) is communicated with the steam generator (4) through a second air pipe (43); the joint of the second air pipe (43) and the steam generator (4) is positioned on the right side surface of the steam generator (4) and is close to the lower surface of the accommodating cavity of the steam generator (4); the lower surface of the accommodating cavity is inclined, and the position close to the joint of the second air pipe (43) and the steam generator (4) is lowest; the steam flow divider (41) is communicated with a steam nozzle (6) at the upper right corner in the working space through a third air pipe (44); the steam generator (4) is communicated with a steam nozzle (6) at the lower left corner in the working space through a fifth air pipe (46); the steam generator (4) is communicated with a steam nozzle (6) at the upper left corner in the working space through a sixth air pipe (47); and the air pipe III (44), the air pipe V (46) and the air pipe VI (47) are all provided with electromagnetic valves.

3. The integrated food steaming and baking oven of claim 1, wherein: a moving plate (22) is installed in the water tank (2), and the moving plate (22) can move freely; a first spring (23) is arranged in the water tank (2); the first spring (23) is an extension spring and is positioned on the right side of the moving plate (22); an electric control valve (24) is arranged on the water tank (2); the water tank (2) is communicated with the steam splitter (41) through a fourth air pipe (45); the connection part of the air pipe four (45) and the water tank (2) is positioned on the right side of the moving plate (22) and below the electric control valve (24); the fourth air pipe (45) is provided with an electromagnetic valve; a water injection port (25) is arranged in the first cavity (17); the water injection port (25) is communicated with the water tank (2), and the joint of the water injection port (25) and the water tank (2) is positioned on the side surface of the water tank (2) opposite to the moving plate (22); a sealing cover (21) is arranged on the water injection port (25); the sealing cover (21) extends out of the upper part of the box body (1).

4. The integrated food steaming and baking oven of claim 1, wherein: the steam nozzle (6) comprises a fixed pipe (61) and a rotating head (62); the fixed pipe (61) is fixedly connected in the working space and is communicated with the air pipe; the rotating head (62) is rotatably arranged on the fixed pipe (61); the rotating head (62) and the fixed pipe (61) are sealed, and the rotating head (62) can rotate freely; a gas cavity is arranged in the rotating head (62); the gas cavity is cylindrical; a plurality of rotating air passages (63) are uniformly formed in the rotating head (62), and the rotating air passages (63) are communicated with the air cavity; the rotating air channel (63) is tangent to the air cavity; the rotary air passages (63) are all positioned on the same plane; one end of the rotary air channel (63) is communicated with the air cavity, and the other end of the rotary air channel is communicated with the external environment; an air passage is formed in the fixed pipe (61) and is communicated with an air cavity in the rotating head (62).

5. The integrated food steaming and baking oven of claim 1, wherein: the heating device (12) protrudes out of the lower surface of the working space; the heating device (12) is not in contact with the side wall of the working space, and the contact position of the heating device (12) and the working space is chamfered; a heating pipe is arranged in the heating device (12); the upper surface of the heating device (12) is a microcrystalline panel.

6. The integrated food steaming and baking oven of claim 1, wherein: the vertical side wall of the working space is provided with guide grooves (14) which are uniformly distributed; and the inner side surfaces of the working spaces are subjected to hydrophobic and oleophobic treatment.