CN214712033U - Steam cooking device - Google Patents

Abstract

The utility model provides a steam cooking device, steam cooking device includes: a steam generator adapted to generate steam, said steam generator having a steam conduit connected thereto, one end of said steam conduit acting in said cooking chamber; one end of the air-entraining pipe acts in the inner container; an exhaust pump acting on the bleed air duct and adapted to create a negative pressure inside the bleed air duct. The utility model discloses in, through setting up air pump and bleed pipe, can in time discharge the high temperature steam in the inner bag to help reducing the temperature in the inner bag, and can avoid opening back steam when the inner bag and pounce out, cause the thermal burn to user's hand or face.

Description

Steam cooking device

Technical Field

The utility model relates to a cooking equipment technical field, concretely relates to steam cooking device.

Background

Steam has been widely used in steam cooking devices such as steam boxes and steam ovens as a conventional food cooking medium.

Because the principle of steam culinary art food utilizes high temperature steam to heat food, but after the culinary art is accomplished, can keep high temperature for a period in the furnace chamber continuously, high temperature steam is difficult to be eliminated fast this moment, to some users of urgency, just can open the cabinet door at the very first time after the steam cooking device accomplishes. At the moment, the high-temperature steam remained in the furnace chamber can directly gush out and possibly act on the hand, face and other areas of the user, and the danger of scalding the user is caused.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the steam cooking device among the prior art and can't in time eliminate the inside high temperature steam of furnace chamber, probably cause the defect of scald to the user after accomplishing the culinary art.

Therefore, the utility model provides a steam cooking device, include: the inner container is internally provided with a cooking cavity suitable for placing food; a steam generator adapted to generate steam, said steam generator having a steam conduit connected thereto, one end of said steam conduit acting in said cooking chamber; one end of the air-entraining pipe acts in the inner container; an exhaust pump acting on the bleed air duct and adapted to create a negative pressure inside the bleed air duct.

The utility model provides a steam cooking device, the bleed pipe includes: one end of the first air guide pipe is connected with the inner container, and the other end of the first air guide pipe is connected with the exhaust pump; and one end of the waste gas discharge pipe is connected with the exhaust pump, and the other end of the waste gas discharge pipe is led out of the outer side of the inner container.

The utility model provides a steam cooking device still includes: one end of the waste water pipe is connected to the steam generator; the waste water pump is connected with the other end of the waste water pipe; and the wastewater leading-out pipe is arranged on the wastewater pump and used for leading the wastewater out to the outside.

The utility model provides a steam cooking device, the waste pipe includes first waste pipe and second waste pipe, the one end of second waste pipe is connected with the waste water pump, first bleed pipe includes second bleed pipe and third bleed pipe, the one end of third bleed pipe is connected with the air pump; the steam cooking device further includes: and two inlet ends of the two-position four-way valve are connected with the first waste water pipe and the second air entraining pipe, and two outlet ends of the two-position four-way valve are respectively connected with the second waste water pipe and the third air entraining pipe.

The utility model provides a steam cooking device still includes: and the drain valve component is provided with a water inlet, the water inlet is arranged at the bottom wall of the inner container, condensed water flowing through the bottom wall of the inner container is suitable for entering the interior of the drain valve component through the water inlet, and the air entraining pipe is communicated with the drain valve component.

The utility model provides a steam cooking device, drain valve assembly includes: the base is internally provided with an accommodating cavity; one end of the elastic piece is abutted against the accommodating cavity; the sliding cover is arranged at the other end of the elastic piece and can move in the accommodating cavity under the driving of the elastic piece; and the top cover is pressed on the sliding cover and is connected with the base.

The utility model provides a steam cooking device still includes: the spring holder sets up in holding the chamber, be provided with the portion of permeating water on the spring holder, the elastic component is installed on the spring holder.

The utility model provides a steam cooking device, the middle part of top cap is provided with fretwork portion, fretwork portion is provided with the filter screen lid, the filter screen is covered and is provided with the filter screen.

The utility model provides a steam cooking device, the filter screen lid includes the carriage, be provided with on the carriage the filter screen, be provided with the handle on the top surface of carriage.

The utility model provides a steam cooking device, on the top cap inner wall with the corresponding position of sliding closure is provided with the sealing washer, the sliding closure is suitable for reaching at the waste water pump the elastic component effect is relative down the sealing washer removes.

The utility model provides a steam cooking device, be provided with water level probe on the sliding closure, water level probe with the waste water pump communication is connected.

The utility model provides a steam cooking device, be provided with a body on the inner bag, be provided with the lock on the door body, still include: and the temperature sensor is suitable for detecting the temperature inside the inner container, and is in communication connection with the exhaust pump and the door lock.

The utility model provides a steam cooking device, steam cooking device is the steaming and baking oven.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a steam cooking device, include: a steam generator adapted to generate steam, said steam generator having a steam conduit connected thereto, one end of said steam conduit acting in said cooking chamber; one end of the air-entraining pipe acts in the inner container; an exhaust pump acting on the bleed air duct and adapted to create a negative pressure inside the bleed air duct.

The utility model discloses in, through setting up air pump and bleed pipe, can in time discharge the high temperature steam in the inner bag to help reducing the temperature in the inner bag, and can avoid opening back steam when the inner bag and pounce out, cause the thermal burn to user's hand or face.

2. The utility model provides a steam cooking device, the waste pipe includes first waste pipe and second waste pipe, the one end of second waste pipe is connected with the waste water pump, first bleed pipe includes second bleed pipe and third bleed pipe, the one end of third bleed pipe is connected with the air pump; two inlet ends of the two-position four-way valve are connected with the first waste water pipe and the second air entraining pipe, and two outlet ends of the two-position four-way valve are respectively connected with the second waste water pipe and the third air entraining pipe.

In the prior art, high-temperature steam can exchange heat with an inner cavity, food, a cabinet door and the like with lower temperature, so that condensed water is generated and can be collected to the bottom of the inner cavity. The fine water droplets also fall slowly under the influence of gravity to form water droplets. Over time, the bottom of the chamber becomes increasingly waste. And food can have partial residue, greasy dirt and can flow to the inner chamber bottom along with the condensate water, forms oil water mixed liquid, and condensate water, oil water mixed liquid gathering can take place food corruption inside steam cooking device, and then influence user's health.

The utility model discloses in, through setting up two-position cross valve, the second bleed pipe, second waste pipe and wastewater pump, can derive the comdenstion water in the inner bag, after the wastewater pump starts, the comdenstion water in the inner bag will get into the second bleed pipe in proper order, two-position cross valve and second waste pipe, and enter into the waste water outlet pipe under the drive of wastewater pump, engage in the discharge operation of the comdenstion water of realization in to the inner bag, in order to avoid the comdenstion water to remain the food corruption that causes in the inner bag, peculiar smell scheduling problem.

Through foretell setting mode for can realize the discharge operation of waste water in the steam generator and the comdenstion water in the inner bag through a waste water pump, can save the shared space of steam cooking device effectively, thereby improve whole steam cooking device's compact structure nature.

Meanwhile, after the third air guide pipe, the fourth air guide pipe and the two-position four-way valve are communicated, the high-temperature steam in the inner container can be discharged.

Through the arrangement mode, the discharge of condensed water in the inner container, high-temperature steam in the inner container and wastewater in the steam generator are independent from each other, and mutual interference is avoided.

Mutually independent different branches can reduce the interference to the culinary art process effectively, for example when discharging the waste water to among the steam generator, the disconnection of two branches of control condensate water and high temperature steam to can avoid the high temperature steam in the inner bag to be sucked out to the external world under the negative pressure, cause the temperature reduction in the inner bag, finally cause harmful effects to food culinary art effect.

3. The utility model provides a steam cooking device, the middle part of top cap is provided with fretwork portion, fretwork portion is provided with the filter screen lid, the filter screen is covered and is provided with the filter screen.

Through setting up the filter screen for inside cubic debris in the condensate water, like food waste can not enter into drain valve assembly, thereby further lead to the connecting pipe to take place the condition of jam and take place.

Through setting up the filter screen, help ensureing that the pipeline of connecting pipe is unobstructed to further ensure unobstructed nature and stability when drawing water the operation to drain valve subassembly.

4. The utility model provides a steam cooking device, be provided with water level probe on the sliding closure, water level probe with the waste water pump communication is connected.

Through setting up the water level probe, after the water level that the water level probe monitoring obtained surpassed preset water level, it will signal to waste water pump department, and the waste water pump starts and drives the drainage valve subassembly and opens, and the inside comdenstion water that is located the drainage valve subassembly this moment will discharge through the drainage valve subassembly to improve the discharge efficiency to the comdenstion water effectively.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the steam cooking device provided by the present invention;

FIG. 2 is an assembled view showing a structure of a steam generator and the like in the steam cooking apparatus shown in FIG. 1;

FIG. 3 is a schematic structural view of the drain valve assembly provided in FIG. 1;

fig. 4 is a schematic structural view of the drain valve assembly provided by the present invention in a non-draining state;

fig. 5 is a schematic structural diagram of the drain valve assembly provided by the present invention in a drainage state.

Description of reference numerals:

1. an inner container; 2. a steam generator; 3. a steam line; 4. a drain valve assembly; 41. a base; 411. a thread; 42. a spring; 43. a sliding cover; 44. a top cover; 45. a spring seat; 451. buckling; 46. a filter screen cover; 47. filtering with a screen; 48. a handle; 49. a seal ring;

5. a first bleed air duct; 51-a second bleed air duct; 52-third bleed air duct; 6. an exhaust gas discharge pipe; 7. a waste water pump; 8. an exhaust pump; 9. a waste pipe; 91. a first waste pipe; 92. a second waste pipe; 10. a two-position four-way solenoid valve; 11. a water purifying pump; 12. a purified water pipe 13 and a wastewater outlet pipe; 14. and a gasket.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Examples

As shown in fig. 1 to 5, in this embodiment, the steam cooking device may be a steam box, a steam oven, or a steam pan, and all cooking devices that can perform cooking operations through steam are the steam cooking devices in this embodiment.

Steam cooking device can produce high temperature steam through steam generator 2, and high temperature steam can carry out the heat exchange with lower inner chamber of temperature, food, cabinet door etc..

In this embodiment, the steam cooking apparatus includes:

the inner container 1 is made of metal materials such as stainless steel. The food materials to be cooked are placed in the inner container 1, specifically, a steaming rack can be arranged in the inner container 1, and the inner container 1 is divided from the height direction through the steaming rack, so that different cooking spaces are formed.

The inner container 1 is provided with a door body, the door body is provided with a door lock, the temperature sensor is arranged on the door body or the inner container and is suitable for detecting the temperature inside the inner container, and the temperature sensor is in communication connection with the exhaust pump and the door lock.

Specifically, the door lock itself employs an electromagnetic lock, which can be controlled by a temperature sensor and performs a locking or unlocking operation on the door body.

A steam generator 2 adapted to generate steam, a steam pipe 3 connected to the steam generator 2, one end of the steam pipe 3 acting in the cooking cavity;

in the present embodiment, the structure of the steam generator 2 is not limited as long as steam can be generated. The steam generator 2 can be arranged outside the inner container 1, and also can be arranged inside the inner container 1. Preferably, steam generator 2 sets up on the outer wall of inner bag 1, and the steam that steam generator 2 produced lets in inner bag 1 through steam conduit 3 to the realization is to eating the steaming of material in the inner bag 1.

In this embodiment, in order to perform the water supply operation to the steam generator 2, a clean water pump 11 is provided to the steam generator 2, a clean water pipe 12 is connected to the clean water pump 11, the clean water pipe 12 itself is connected to the external clean water, and the external water is introduced into the steam generator 2 through the clean water pump 11 and then is vaporized in the steam generator 2.

One end of the air-entraining pipe acts in the inner container;

an exhaust pump 8, acting on the bleed air duct, is adapted to create a negative pressure inside the bleed air duct.

Through setting up air pump and bleed pipe, can in time discharge the high temperature steam in the inner bag to help reducing the temperature in the inner bag, and can avoid opening back steam when the inner bag and pounce out, cause the thermal burn to user's hand or face.

Specifically, the bleed pipe is made of a flexible pipe, the arrangement position of the exhaust pump is not limited, and the bleed pipe can be arranged on the inner side of the inner container or on the outer side of the inner container. Preferably, the exhaust pump is arranged on the outer side wall of the inner container, and the exhaust pump can be fixed by adopting a screw mode and the like.

In this embodiment, in order to realize the sealing connection between the exhaust pump and the bleed air pipe, the bleed air pipe includes: one end of the first air guide pipe 5 is connected with the inner container, and the other end of the first air guide pipe is connected with the exhaust pump; and one end of the waste gas discharge pipe 6 is connected with the exhaust pump, and the other end of the waste gas discharge pipe is led out of the outer side of the inner container.

Specifically, as shown in fig. 2, the lower end of the first bleed air pipe extends into the inner container, and the outer side of the inner container, which extends from the upper end of the exhaust gas discharge pipe, can be directly communicated with the outside atmosphere and can also be introduced into the storage box, so that the high-temperature steam is cooled in the storage box, and the high-temperature steam is recovered.

Further, in this embodiment, the method further includes:

a waste water pipe 9, one end of which is connected with the steam generator;

before or after the steam generator is used, waste water is usually remained in the steam generator, and the waste water stays in the steam generator and causes the inner wall of the steam generator to be rusted, so that the waste water needs to be led out;

the waste water pump is connected with the other end of the waste water pipe;

in particular, the waste water pump itself is arranged on the outer wall of the inner container to provide suction to the waste water.

And a waste water outlet pipe 13 provided on the waste water pump 9 to outlet the waste water to the outside.

In this embodiment, the waste water pipes include a first waste water pipe 91 and a second waste water pipe 92, one end of the second waste water pipe is connected to the waste water pump, the first bleed air pipe includes a second bleed air pipe and a third bleed air pipe, and one end of the third bleed air pipe is connected to the exhaust pump; two inlet ends of the two-position four-way valve 10 are connected with the first waste water pipe and the second air entraining pipe, and two outlet ends of the two-position four-way valve 10 are respectively connected with the second waste water pipe and the third air entraining pipe.

The high-temperature steam can exchange heat with the inner cavity, food, the cabinet door and the like with lower temperature, so that condensed water is generated and can be collected to the bottom of the inner cavity. The fine water droplets also fall slowly under the influence of gravity to form water droplets. Over time, the bottom of the chamber becomes increasingly waste. And food can have partial residue, greasy dirt and can flow to the inner chamber bottom along with the condensate water, forms oil water mixed liquid, and condensate water, oil water mixed liquid gathering can take place food corruption inside steam cooking device, and then influence user's health.

In this embodiment, through setting up two-position cross valve, second bleed pipe, second waste water pipe and waste water pump, can derive the comdenstion water in the inner bag, after the waste water pump starts, the comdenstion water in the inner bag will get into second bleed pipe, two-position cross valve and second waste water pipe in proper order to enter into the waste water stand-off pipe under the drive of waste water pump, engage in the discharge operation of the comdenstion water that realizes in the inner bag, in order to avoid the comdenstion water to remain the food corruption that causes in the inner bag, peculiar smell scheduling problem.

Through foretell setting mode for can realize the discharge operation of waste water in the steam generator and the comdenstion water in the inner bag through a waste water pump, can save the shared space of steam cooking device effectively, thereby improve whole steam cooking device's compact structure nature. Meanwhile, after the third air guide pipe, the fourth air guide pipe and the two-position four-way valve are communicated, the high-temperature steam in the inner container can be discharged. Through the arrangement mode, the discharge of condensed water in the inner container, high-temperature steam in the inner container and wastewater in the steam generator are independent from each other, and mutual interference is avoided. Mutually independent different branches can reduce the interference to the culinary art process effectively, for example when discharging the waste water to among the steam generator, the disconnection of two branches of control condensate water and high temperature steam to can avoid the high temperature steam in the inner bag to be sucked out to the external world under the negative pressure, cause the temperature reduction in the inner bag, finally cause harmful effects to food culinary art effect.

Specifically, the two-position four-way valve is an electromagnetic valve, mainly comprises a valve body and a driving mechanism, and is a self-holding valve. After receiving a valve opening (closing) signal, the driving mechanism is electrified to drive the valve core of the ball valve to rotate, the interior of the electric actuating mechanism is automatically powered off after the valve core is rotated in place, the valve position mechanical indication points to the corresponding valve position, and the valve position switch outputs a passive valve position signal. The valve functions are switched once every time the valve core rotates 90 degrees.

Further, in this embodiment, the method further includes:

the drain valve assembly 4 is provided with a water inlet, the water inlet is arranged at the bottom wall of the inner container 1, and condensed water flowing through the bottom wall of the inner container 1 is suitable for entering the drain valve assembly 4 through the water inlet;

as shown in fig. 1 and 2, the water inlet of the drain valve assembly 4 is arranged at the upper side of the drain valve assembly 4, the water inlet is communicated with the bottom wall of the inner container 1, specifically, the bottom wall of the inner container 1 has a certain gradient, and the water inlet is arranged at the lowest position of the bottom wall of the inner container 1, so that the condensed water on the bottom wall of the inner container 1 can be ensured to flow into the water inlet completely.

In this embodiment, the structure of the drain valve assembly 4 itself is not limited, and it is only necessary to form conduction when pumping negative pressure, and to allow condensed water to pass through. As an embodiment, the drain valve assembly 4 itself is provided as a one-way valve. Preferably, as shown in fig. 4, the drain valve assembly 4 includes:

the base 41 is internally provided with an accommodating cavity, and the upper part of the top cover 44 is arranged in a hexagonal joint shape, so that the disassembly work is convenient;

an elastic member having one end disposed in the base 41;

the sliding cover 43 is arranged at the other end of the elastic piece and can move in the accommodating cavity under the driving of the elastic piece;

the elastic member is not limited as long as it can increase one elastic supporting force of the slide cover 43, and is preferably provided as the spring 42.

In this embodiment, in order to improve the connection stability between the elastic member and the base 41, the elastic member further includes a spring seat 45 disposed in the accommodating cavity, and the spring seat 45 is provided with a water permeable portion;

through setting up the portion of permeating water for the comdenstion water that enters into drain valve assembly 4 inside can pass through spring holder 45 smoothly, then further flows out base 41.

In particular, the spring seat 45 itself may be fixed inside the seat 41, or may be removably provided in said seat 41. Further, a plurality of buckles 451 are arranged on the spring seat 45, and the buckles 451 can be used for assembling with the spring 42, so that the assembling stability of the bottom of the spring 42 is improved.

And the top cover 44 is pressed on the sliding cover 43 and is connected with the base 41.

Specifically, the top end of the spring 42 abuts against the inner wall of the sliding cover 43, the top surface of the sliding cover 43 is of a closed structure, and only when a certain gap occurs between the inner walls of the sliding cover 43 and the top cover 44, the condensed water can enter the base 41 through the gap.

By providing the spring 42, as shown in fig. 4, an upward pressure can be applied to the sliding cover 43, which can further press against the sliding cover 43, so that the sliding cover 43 and the top cover 44 are in sealing contact. In this embodiment, a rounded corner is provided on the top surface of the sliding cover 43, which is helpful to improve the sealing performance between the sliding cover 43 and the inner wall of the top cover 44.

Further, a sealing ring 49 is arranged on the inner wall of the top cover 44 corresponding to the sliding cover 43, and the sliding cover 43 is suitable for moving relative to the sealing ring 49 under the action of the waste water pump 7 and the elastic member. Specifically, the sealing ring 49 itself is disposed annularly, a groove is disposed on the inner wall of the top cover 44, the sealing ring 49 itself is disposed in the groove, and by disposing the sealing ring 49, the sealing effect between the sliding cover 43 and the top cover 44 can be improved.

The middle part of top cap 44 is provided with the fretwork portion, the fretwork portion is provided with filter screen cover 46, be provided with filter screen 47 on the filter screen cover 46. Through setting up the filter screen for inside cubic debris in the condensate water, like food waste can not enter into drain valve assembly 4, thereby further lead to the connecting pipe to take place the condition of jam and take place. Meanwhile, the filter screen helps to ensure that the pipeline of the connecting pipe is smooth, so that smoothness and stability in the water pumping operation of the water discharge valve assembly 4 are further ensured.

Further, filter screen cover 46 includes the carriage, be provided with on the carriage the filter screen, be provided with handle 48 on the top surface of carriage, through setting up handle 48, can conveniently get rid of filter screen cover 46 to the realization is to the quick clearance of food waste etc..

In this embodiment, after the waste water pump 7 is started, a negative pressure is generated in the connection pipe, the negative pressure is gradually increased, so that the spring 42 is compressed, the sliding cover 43 moves downwards to form a gap with the sealing ring 49, and waste water or condensed water flows out through the gap, further flows into the connection pipe, and flows out to the waste water tank through the connection pipe or directly enters into a sewer.

In this embodiment, the top cover 44 is provided with external threads, the inner wall of the base 41 is correspondingly provided with threads 411, threads are correspondingly arranged between the inner walls of the filter screen cover 46 and the top cover 44, and stable connection is realized through the threads. Meanwhile, a flange is provided on the top cover 44, and a gasket 14 is provided at the bottom of the flange, and the gasket 14 itself is in contact with the top of the base 41, thereby improving the sealing effect between the top cover 44 and the base 41.

Further, a water level probe is arranged on the sliding cover 43 and is in communication connection with the wastewater pump 7. In the cooking process, the formed condensed water or oil-water mixture is gradually collected to the top position of the sliding cover 43 and stored, when the water level exceeds a certain degree, the water level probe sends a signal to the wastewater pump 7, the wastewater pump 7 is started and carries out vacuum pumping operation on the drain valve assembly 4, and therefore automatic water drainage is achieved.

The operation process of the steam cooking device provided by the embodiment is roughly as follows:

the steam generator 2 is started to inject the generated steam into the inner container 1 through the steam pipe 3. After the steam cooking device finishes cooking operation, the door lock on the door body can be preferentially locked, so that the situation that a user opens the door suddenly to cause high-temperature steam to cause thermal burn to the user is prevented, and the door lock is automatically opened until the inner container is naturally cooled to a preset temperature.

When the temperature of the inner container detects that the door body has a door opening action under the condition of being higher than the preset temperature, the exhaust pump is controlled to be started, and high-temperature steam is discharged to the outside through the exhaust valve assembly and the air guide pipe in sequence, so that the aim of quickly cooling the inner container is fulfilled.

Meanwhile, in the cooking process, high-temperature steam forms condensed water after exchanging heat with the inner container 1, and the condensed water is continuously collected on the bottom wall of the inner container 1, flows into the upper part of the sliding cover 43 through the water inlet of the water drain valve assembly 4 and is continuously collected on the sliding cover 43.

The water level of the condensed water on the sliding cover 43 is monitored in real time by the water level probe, when the preset time or the water level exceeds a certain height, the water level probe sends a signal to the wastewater pump 7, the wastewater pump 7 is started, as shown in fig. 5, the sliding cover 43 in the drain valve assembly 4 is driven to move downwards by the negative pressure generated by the wastewater pump 7, a gap is formed between the sliding cover 43 and the top cover 44 at the moment, the condensed water enters the base 41 through the gap, and the condensed water passes through the exhaust pipe and the wastewater pipe under the action of the wastewater pump 7 and is discharged to the outside.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (13)

1. A steam cooking device, comprising:

the inner container (1) is internally provided with a cooking cavity suitable for placing food;

a steam generator (2) suitable for generating steam, a steam pipe (3) is connected to the steam generator (2), and one end of the steam pipe (3) acts in the cooking cavity;

one end of the air-entraining pipe acts in the inner container;

an exhaust pump acting on the bleed air duct and adapted to create a negative pressure inside the bleed air duct.

2. Steam cooking device according to claim 1, characterized in that the air-entraining duct comprises:

one end of the first air guide pipe is connected with the inner container, and the other end of the first air guide pipe is connected with the exhaust pump;

and one end of the waste gas discharge pipe is connected with the exhaust pump, and the other end of the waste gas discharge pipe is led out of the outer side of the inner container.

3. The steam cooking device of claim 2, further comprising:

a waste water pipe (9) with one end connected to the steam generator (2);

the waste water pump (7) is connected with the other end of the waste water pipe (9);

and the wastewater leading-out pipe is arranged on the wastewater pump and used for leading the wastewater out to the outside.

4. The steam cooking device of claim 3, wherein the waste comprises a first waste and a second waste, one end of the second waste being connected to the waste pump, the first bleed air comprises a second bleed air and a third bleed air, one end of the third bleed air being connected to the exhaust pump;

the steam cooking device further includes:

the waste water treatment device comprises a two-position four-way electromagnetic valve (10), wherein two inlet ends of the two-position four-way electromagnetic valve (10) are connected with the first waste water pipe and the second air entraining pipe, and two outlet ends of the two-position four-way electromagnetic valve (10) are respectively connected with the second waste water pipe and the third air entraining pipe.

5. The steam cooking device as claimed in any one of claims 3 to 4, further comprising:

the drainage valve assembly (4) is provided with a water inlet, the water inlet is formed in the bottom wall of the inner container (1), condensed water flowing through the bottom wall of the inner container (1) is suitable for entering the drainage valve assembly (4) through the water inlet, and the air entraining pipe is communicated with the drainage valve assembly (4).

6. Steam cooking device according to claim 5, characterized in that said drain valve assembly (4) comprises:

a base (41) provided with an accommodating cavity therein;

one end of the elastic piece is abutted against the accommodating cavity;

the sliding cover (43) is arranged at the other end of the elastic piece and can move in the accommodating cavity under the driving of the elastic piece;

and the top cover (44) is pressed on the sliding cover (43) and is connected with the base (41).

7. The steam cooking device of claim 6, further comprising: the spring seat (45) is arranged in the accommodating cavity, a water permeable part is arranged on the spring seat (45), and the elastic part is installed on the spring seat (45).

8. Steam cooking device according to claim 6, characterised in that the top cover (44) is provided with a hollow in the middle, said hollow being provided with a filter screen cover (46), said filter screen cover (46) being provided with a filter screen.

9. Steam cooking device according to claim 8, characterised in that the filter screen cover (46) comprises a support frame on which the filter screen is arranged, and on the top surface of which a handle (48) is arranged.

10. Steam cooking device according to claim 6, characterised in that a sealing ring (49) is provided on the inner wall of the lid (44) in correspondence of the sliding cover (43), the sliding cover (43) being adapted to move with respect to the sealing ring (49) under the action of the waste water pump (7) and of the elastic element.

11. Steam cooking device according to claim 6, characterised in that a water level probe is provided on the sliding cover (43), said water level probe being connected in communication with the waste water pump (7).

12. The steam cooking device according to claim 1, wherein the inner container (1) is provided with a door body, the door body is provided with a door lock, and the steam cooking device further comprises:

and the temperature sensor is suitable for detecting the temperature inside the inner container, and is in communication connection with the exhaust pump and the door lock.

13. The steam cooking device of claim 1, wherein the steam cooking device is a steam oven.

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