CN214712034U - Steam cooking device - Google Patents

Abstract

The utility model provides a steam cooking device, include: the drain valve assembly is provided with a water inlet, the water inlet is arranged at the bottom wall of the inner container, and condensed water flowing through the bottom wall of the inner container is suitable for entering the interior of the drain valve assembly through the water inlet; one end of the connecting pipe is connected with one end of the drain valve component, which is far away from the water inlet; the waste water pump is acted on the connecting pipe, and the other end of the connecting pipe extends to the outer side of the inner container. Through foretell structure setting mode, can be with the comdenstion water that forms in the inner bag quick and fully guide to the outside for remaining comdenstion water is less on the diapire of final inner bag, consequently can avoid adopting electric heating's mode to dry the comdenstion water among the prior art in order to realize getting rid of the operation, leading to forming the seal of a government organization in old china on steam cooking device's inner wall, influences user experience's defect.

Description

Steam cooking device

Technical Field

The utility model relates to a cooking device 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 cooking food is to utilize high temperature steam to heat food, must accompany the change of the temperature of steam in the process of cooking, also must accompany the condensation process of vapor, in the cooking process, steam will contact with the lateral wall of steam cooking device, because the temperature of the lateral wall of steam cooking device is lower, after high temperature steam contacted with the lateral wall of steam cooking device, can take place to condense and produce the comdenstion water. After food cooking, a large amount of condensed water can be accumulated at the bottom of the cavity of the steam cooking device, and the steam cooking device needs to be cleaned by a user in addition, thereby wasting time and energy.

The presence of condensed water can cause corrosion at the bottom of the steam cooking device and can cause bacterial growth and the generation of odors in the steam cooking device. Among the prior art, can adopt the mode of electrical heating to dry the comdenstion water usually in order to realize the operation of getting rid of to the comdenstion water, nevertheless foretell mode of getting rid of can lead to forming the seal of a government organization in old china on steam cooking device's inner wall, the colour and the inner chamber inconsistent of these seal of a government organization in old china, influence steam cooking device inner wall pleasing to the eye, and then influence user experience.

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 causing the influence to the pleasing to the eye degree of steam cooking device's inner wall when the mode of drying is got rid of the comdenstion water, and then influences user experience's defect.

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; the drain valve assembly is provided with a water inlet, the water inlet is arranged at the bottom wall of the inner container, and condensed water flowing through the bottom wall of the inner container is suitable for entering the interior of the drain valve assembly through the water inlet; one end of the connecting pipe is connected with one end of the drain valve component, which is far away from the water inlet; the waste water pump is acted on the connecting pipe, and the other end of the connecting pipe extends to the outer side of the inner container.

The utility model provides a steam cooking device, the connecting pipe includes: one end of the first connecting pipe is connected with the drain valve component; one end of the second connecting pipe is connected with the waste water pump; and the flow meter is simultaneously connected with the other ends of the first connecting pipe and the second connecting pipe and is in communication connection with the waste water pump.

The utility model provides a steam cooking device still includes: and one end of the waste water pipe is connected to the steam generator, and the other end of the waste water pipe is connected to the waste water pump.

The utility model provides a steam cooking device still includes: and one end of the waste water pipe and one end of the second connecting pipe are respectively connected to the two-position three-way valve, and a solenoid valve leading-out pipe is connected between the two-position three-way valve and the waste water pump.

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, 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: 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; the drain valve assembly is provided with a water inlet, the water inlet is arranged at the bottom wall of the inner container, and condensed water flowing through the bottom wall of the inner container is suitable for entering the interior of the drain valve assembly through the water inlet; one end of the connecting pipe is connected with one end of the drain valve component, which is far away from the water inlet; the waste water pump is acted on the connecting pipe, and the other end of the connecting pipe extends to the outer side of the inner container.

The utility model discloses in, through setting up drainage valve subassembly and waste water pump, high temperature steam in the inner bag takes place to condense and flows to the diapire of inner bag after, the comdenstion water that is liquid form will further flow to take in to drainage valve subassembly's water inlet position. Meanwhile, by arranging the waste water pump, negative pressure can be formed after the waste water pump is started, and condensed water in the drainage valve assembly can be guided into the connecting pipe through the negative pressure and further guided to the outer side of the inner container through the connecting pipe.

The utility model discloses in, through foretell structure setting mode, can be with the comdenstion water that forms in the inner bag fast and fully guide to the outside for remaining comdenstion water is less on the diapire of final inner bag, consequently can avoid adopting electric heating's among the prior art mode to dry the comdenstion water in order to realize the operation of getting rid of the comdenstion water, lead to forming the seal of a government organization in old china on steam cooking device's inner wall, influence user experience's defect.

2. The utility model provides a steam cooking device still includes: and one end of the waste water pipe is connected to the steam generator, and the other end of the waste water pipe is connected to the waste water pump.

The utility model discloses in, through setting up the waste pipe on the waste water pump for the waste water pump both can realize the extraction operation to the inside waste water of steam generator, can also realize the extraction operation to the comdenstion water in the inner bag at the culinary art in-process. Through foretell setting mode, can save the shared space of steam cooking device effectively to improve whole steam cooking device's compact structure nature.

3. The utility model provides a steam cooking device still includes: and one end of the waste water pipe and one end of the second connecting pipe are respectively connected to the two-position three-way valve, and a solenoid valve leading-out pipe is connected between the two-position three-way valve and the waste water pump.

Through setting up two-position three way solenoid valve, under initial condition, steam generator and waste water pump switch-on can take out the remaining ponding in the steam generator when steaming work begins at any time, can keep drainage valve subassembly airtight simultaneously, prevent that electrical apparatus during operation inner chamber high pressure from pushing off drainage valve subassembly. Leading to heat and accumulated water loss and affecting the cooking effect.

4. 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.

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 connecting pipe; 6. a second connecting pipe; 7. a waste water pump; 8. a flow meter; 9. a waste pipe; 10. a two-position three-way electromagnetic valve; 11. a water purifying pump; 12. a water purifying pipe 13 and an electromagnetic valve 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

The present embodiment provides a steam cooking device, and in the present embodiment, the steam cooking device may be a steam box, a steam oven, or a steam pan, and the steam cooking device in the present embodiment is the steam cooking device as long as the cooking device capable of performing cooking operation through steam is implemented.

Steam cooking device can produce high temperature steam through steam generator 2, and high temperature steam can carry out the heat exchange with the lower inner chamber of temperature, food, cabinet door etc to produce the comdenstion water, this comdenstion water can collect the inner chamber bottom. 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 are inside steam cooking device, can take place putrefaciently, and then influence user's health.

In this embodiment, as shown in fig. 1 to 5, the steam cooking apparatus includes:

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

in this embodiment, the inner container 1 is made of metal material, 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.

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.

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 shown in fig. 2, one end of the connecting pipe is connected to one end of the drain valve assembly 4 away from the water inlet;

the material of the connecting pipe is not limited, the connecting pipe can be of a flexible structure such as rubber, and can also be of a hard material such as a quartz pipe and a stainless steel pipe, so long as the diversion of condensed water can be realized.

And the waste water pump 7 is used for acting on the connecting pipe, and the other end of the connecting pipe extends to the outer side of the inner container 1.

Through setting up waste water pump 7, after waste water pump 7 starts, can form the negative pressure on connecting pipe and drain valve subassembly 4, the negative pressure further drives drain valve subassembly 4 and takes place to switch on to in leading-in the connecting pipe with the comdenstion water in the inner bag 1, then further derive to the 1 outside of inner bag, thereby realize the derivation of comdenstion water.

As shown in fig. 2, by providing the drain valve assembly 4 and the waste water pump 7, the high-temperature steam in the inner container 1 is condensed and flows to the bottom wall of the inner container 1, and then the condensed water in a liquid state further flows to the water inlet of the drain valve assembly 4 to be stored. Meanwhile, by providing the waste water pump 7, a negative pressure can be formed when it is started, and the condensed water in the drain valve assembly 4 can be guided to the connecting pipe by the negative pressure and further guided to the outside of the inner container 1 through the connecting pipe. Through foretell structure setting mode, can be with the comdenstion water that forms in inner bag 1 quick and fully guide to the outside for remaining comdenstion water is less on final inner bag 1's the diapire, consequently can avoid adopting electric heating's mode to dry the comdenstion water among the prior art in order to realize getting rid of the operation, leading to forming the seal of a government organization in old china on steam cooking device's inner wall, influences user experience's defect.

In this embodiment, as shown in fig. 2, the connection pipe includes: one end of the first connecting pipe 5 is connected with the drain valve component 4; one end of the second connecting pipe 6 is connected with the waste water pump 7; and the flow meter 8 is simultaneously connected with the other ends of the first connecting pipe 5 and the second connecting pipe 6, and the flow meter 8 is in communication connection with the waste water pump 7.

Specifically, by directly setting the flow meter 8 between the first connecting pipe 5 and the second connecting pipe 6, the sealing effect of the flow meter 8 on the first connecting pipe 5 and the second connecting pipe 6 can be effectively improved, so that the condensed water inside the drain valve assembly 4 is stably and rapidly led out to the outside.

In this embodiment, can carry out signal transmission through the wire between flowmeter 8 self and the waste water pump 7, also can carry out signal transmission through wifi module etc..

The flow meter 8 itself plays a role of monitoring the condensed water in real time, and when the condensed water passes through the flow meter 8, the flow meter 8 can control the wastewater pump 7 to work continuously. When the flow meter 8 does not detect the water flow in a specific time period, a signal is sent to the waste water pump 7 to control the waste water pump 7 to stop working, so that the waste water pump 7 is prevented from idling. Specifically, the specific time can be adjusted according to the actual working condition, in this embodiment, the specific time is set to 5 seconds, and after the undetected water flow passes through the specific time within 5 seconds, the flow meter 8 controls the waste water pump 7 to stop running.

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.

The steam cooking device provided by the embodiment further comprises: and one end of the waste water pipe 9 is connected to the steam generator 2, and the other end of the waste water pipe is connected to the waste water pump 7. As shown in fig. 2, by disposing the waste water pipe 9 on the waste water pump 7, the waste water pump 7 can perform both the pumping operation of the waste water inside the steam generator 2 and the pumping operation of the condensed water in the inner container 1 during the cooking. Through foretell setting mode, can save the shared space of steam cooking device effectively to improve whole steam cooking device's compact structure nature.

Specifically, the waste water pipe 9 itself is used to perform a suction operation of the water remaining inside the steam generator 2 after the cooking is completed, thereby preventing the residual water in the steam generator 2 from causing corrosion inside the steam generator 2.

The steam cooking device provided in this embodiment, as shown in fig. 2, further includes: and one end of the waste water pipe 9 and one end of the second connecting pipe 6 are respectively connected to the two-position three-way valve 10, and a solenoid valve leading-out pipe 13 is connected between the two-position three-way valve and the waste water pump 7.

The structure of the two-position three-way electromagnetic valve 10 is not limited as long as the basic function thereof can be achieved. In this embodiment, through setting up two-position three way solenoid valve 10, under initial condition, steam generator 2 and waste water pump 7 switch-on can begin and evaporate the remaining ponding of work in the end with steam generator 2 and take out, can keep drain valve subassembly 4 airtight simultaneously, prevent that 2 during operations inner chamber high pressures of steam generator from pushing off drain valve subassembly 4, lead to heat and ponding to run off, influence the culinary art effect.

In this embodiment, the structure of the drain valve assembly 4 itself is not limited, and as an embodiment, the drain valve assembly 4 itself is provided as a check 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. The 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, as shown in fig. 4, and flows into the upper part of the sliding cover 43 through the water inlet of the 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 sequentially passes through the first connecting pipe 5 and the second connecting pipe 6 under the action of the wastewater pump 7 and is discharged to the outside.

The flowmeter 8 can monitor the water flow passing through the flowmeter in real time, when the flowmeter 8 does not detect the water flow passing within a period of time, the flowmeter indicates that condensed water in the drain valve assembly 4 is drained, the flowmeter sends a signal to the wastewater pump 7, and the wastewater pump 7 stops rotating after receiving the signal. At this time, the sliding cover 43 will be reset by the spring 42 and will continue to abut against the inner wall of the top cover 44, and a new cycle of water storage operation is performed until the cooking is completed.

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 (11)

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;

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;

one end of the connecting pipe is connected to one end, far away from the water inlet, of the drainage valve assembly (4);

the waste water pump (7), waste water pump (7) is used on the connecting pipe, and the other end of the connecting pipe extends to the outer side of the inner container (1).

2. The steam cooking device of claim 1, wherein the connection pipe comprises:

one end of the first connecting pipe (5) is connected with the drain valve component (4);

one end of the second connecting pipe (6) is connected with the waste water pump (7);

and the flowmeter (8) is simultaneously connected with the other ends of the first connecting pipe (5) and the second connecting pipe (6), and the flowmeter (8) is in communication connection with the wastewater pump (7).

3. The steam cooking device of claim 2, further comprising: and one end of the waste water pipe (9) is connected to the steam generator (2), and the other end of the waste water pipe is connected to the waste water pump (7).

4. The steam cooking device of claim 3, further comprising: and one end of the waste water pipe (9) and one end of the second connecting pipe (6) are respectively connected to the two-position three-way electromagnetic valve (10), and an electromagnetic valve leading-out pipe (13) is connected between the two-position three-way electromagnetic valve and the waste water pump (7).

5. Steam cooking device according to any of claims 1 to 4, characterised 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).

6. The steam cooking device of claim 5, 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).

7. Steam cooking device according to claim 5, 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.

8. Steam cooking device according to claim 7, 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.

9. Steam cooking device according to claim 8, 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 the elastic element.

10. Steam cooking device according to claim 5, 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).

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

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