Water tank device and steam cooking utensil

Abstract

The utility model provides a water tank device and a steam cooking utensil, and the water tank device comprises an installation housing which comprises an installation cavity, and one end of the installation cavity is provided with an installation port; the water tank assembly comprises a water tank shell and a cover body, the water tank shell comprises a water containing cavity and a first water inlet and outlet communicated with the water containing cavity, the first water inlet and outlet is formed in one end of the water tank shell, the cover body can be detachably installed on the water tank shell, and a second water inlet and outlet is formed in the water tank shell; the water tank assembly is detachably installed on the installation shell and can move between a first position and a second position in the first direction, when the water tank assembly is located at the first position, the water tank assembly is located in the installation cavity, and when the water tank assembly is located at the second position, the second water inlet and outlet is located outside the installation cavity. According to the structure, the water tank assembly can be detached, water adding can be achieved by opening the cover body, water adding can be achieved through the second water inlet and outlet without detaching the water tank assembly, and therefore the water adding mode of the water tank assembly is more flexible.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a water tank device and a steam cooking appliance. BACKGROUND

[0002] In related schemes, a steam cooking appliance (steam oven) supplies water into a cooking cavity through a water tank, so that the water can be heated into steam in the cooking cavity. The water tank of this kind of steam cooking appliance has a relatively single water filling mode, and the water filling operation is not flexible enough.

[0003] Therefore, how to design a water tank and a steam cooking appliance with more flexible water filling operation has become a problem to be solved at present. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to at least solve the problem of the water tank of the steam cooking appliance in the prior art or related art that the water filling operation is not flexible enough.

[0005] Therefore, the first purpose of the present application is to provide a water tank device.

[0006] The second purpose of the present application is to provide a steam cooking appliance.

[0007] To achieve the above purpose, the first aspect of the present application provides a water tank device for a steam cooking appliance, which comprises: a mounting shell, the mounting shell comprising a mounting cavity, one end of the mounting cavity being provided with a mounting opening; a water tank assembly comprising a water tank shell and a cover, the water tank shell comprising a water containing cavity and a first water inlet and outlet communicated with the water containing cavity, the first water inlet and outlet being arranged at one end of the water tank shell, the cover being detachably mounted on the water tank shell to open or close the first water inlet and outlet, and the water tank shell further being provided with a second water inlet and outlet; wherein the water tank assembly is detachably mounted on the mounting shell, and when the water tank assembly is mounted on the mounting shell, it can move between a first position and a second position along a first direction, when the water tank assembly is at the first position, it is located in the mounting cavity, and when the water tank assembly is at the second position, the second water inlet and outlet are located outside the mounting cavity.

[0008] The water tank device can be used in a steam cooking appliance such as a steam oven. The water tank device can supply water to the cooking cavity of the steam cooking appliance, so that the water in the steam cooking appliance can be heated into steam to humidify the food in the cooking cavity. The water tank device specifically comprises a water tank assembly and a mounting shell. The mounting shell is used to support the water tank assembly. During installation, the mounting shell can be fixed to the box body of the steam cooking appliance, and then the water tank assembly can be detachably installed in the mounting shell. In this way, the water tank assembly can be individually detached, so that the water tank assembly can be easily detached from the product for cleaning and water filling. At the same time, due to the mounting shell, the water tank assembly does not need to be connected to a water receiving box, so that the water tank assembly does not need any pipe connection during installation and removal, which makes the installation and removal of the water tank assembly very convenient, thereby facilitating the removal of the water tank assembly for cleaning or water filling.

[0009] The water tank assembly specifically comprises a water tank shell and a cover. The water tank shell is provided with a first water inlet and outlet, and the cover is detachably installed on the first water inlet and outlet of the water tank shell. Due to the detachable cover, the cover can be opened to clean the inside of the water tank shell when the water tank assembly needs to be cleaned, which improves the cleaning convenience of the water tank assembly and ensures the cleanliness of the water tank assembly. At the same time, since the user can open the cover to view the inside of the water tank shell, the user can easily check the dirt inside the water tank assembly in time, so that the user can find the dirt in the water tank assembly quickly, thereby facilitating the user to clean the water tank assembly in time, so that the user can use the water tank assembly more confidently.

[0010] At the same time, in the present application, the water tank assembly can be extended and retracted relative to the mounting shell. That is, the water tank assembly can be installed at a first position in the mounting shell, or can extend part of the structure from the mounting port to the outside of the mounting cavity. At this time, the water tank assembly is located at a second position. When the water tank assembly is located at the second position, the second water inlet and outlet are located outside the mounting cavity. When water needs to be added to the water tank assembly, the water tank assembly can be moved from the first position to the second position to expose the second water inlet and outlet, and then water can be added to the water tank assembly through the second water inlet and outlet. The provision of the second water inlet and outlet allows the user to add water without detaching the water tank assembly, which facilitates the user to add water to the water tank assembly during cooking.

[0011] As can be seen, in the present application, when water is added to the water tank assembly, the entire water tank assembly can be detached and the cover can be opened to add water, or the water tank assembly can be partially extracted relative to the mounting shell to add water to the water tank assembly through the second water inlet and outlet. In this way, the water tank assembly has more flexible and diverse water filling modes, thereby improving the user experience.

[0012] The first direction is an axial direction of the mounting port.

[0013] In any of the above embodiments, optionally, the first water inlet / outlet is arranged at one end of the water tank shell along the first direction, and the cover is arranged at the end of the one end of the water tank shell along the first direction.

[0014] In this embodiment, the first direction can be a horizontal direction, so that after the water tank assembly is installed, the cover and the water tank shell are connected along the horizontal direction. In this structure, the cover is arranged at the top of the water tank shell, and is not arranged at the bottom of the water tank assembly. In this way, the second water inlet / outlet can be arranged on the side wall of the water tank shell in the height direction, thereby facilitating the user to add water through the second water inlet / outlet.

[0015] In any of the above embodiments, optionally, when the water tank device is installed, the entire water tank device can be installed along the front-rear direction of the cooking box body, so that the water tank assembly can move along the front-rear direction relative to the cooking box body. For example, the water tank assembly can be disassembled from the front side of the cooking box body. The cover and the water tank shell of the water tank assembly are also assembled along the front-rear direction, which is equivalent to that the water tank assembly is installed horizontally on the cooking box body, rather than vertically on the cooking box body. In this way, it is more convenient for the user to add water through the second water inlet / outlet.

[0016] In any of the above embodiments, optionally, when the water tank assembly is in the first position, the cover is arranged close to the mounting port; the second water inlet / outlet is arranged on the side wall of the mounting shell close to the cover, and when the water tank assembly is in the second position, the cover is located outside the mounting cavity.

[0017] In this embodiment, when the water tank assembly is inserted into the mounting cavity from the mounting port, the bottom of the water tank shell can be inserted into the mounting cavity first. In this way, after the water tank assembly is installed, the cover is located on the outside. The second water inlet / outlet is also arranged close to the cover, which makes the two water inlets / outlets of the water tank assembly arranged on the same side. Therefore, after the water tank assembly is disassembled, the user can set the end of the water tank assembly with the cover upward to add water. That is, this arrangement can make the second water inlet / outlet arranged higher, so that the water in the water tank shell is less likely to leak from the second water inlet / outlet.

[0018] In any of the above embodiments, optionally, the water tank assembly further comprises a sealing ring arranged between the water tank shell and the cover to seal the gap between the water tank shell and the cover. By arranging the sealing ring, the sealing between the water tank shell and the cover can be ensured, and water leakage of the water tank assembly can be avoided.

[0019] In any of the above embodiments, optionally, the sealing ring comprises: an inner ring and an outer ring, one end of the inner ring and the outer ring are connected to each other, the other end of the outer ring is arranged outside the inner ring along the circumference direction of the inner ring, and a gap is arranged between the other end of the outer ring and the inner ring along the radial direction of the sealing ring.

[0020] In this embodiment, the deformation ability of the sealing ring can be improved through the gap, so that the sealing ring can better adapt to the different sizes between the cover body and the water tank shell, that is, the sealing ring can adjust the overall size according to the different sizes between the cover body and the water tank shell.

[0021] In any of the above embodiments, optionally, the water tank shell comprises a first arc-shaped surface arranged along the circumference direction of the water tank shell, two ends of the first arc-shaped surface arranged along the circumference direction of the water tank shell are connected by a first outer side wall surface, the first outer side wall surface comprises a first plane and a second arc-shaped surface, the second water inlet and outlet are arranged on the first plane, and the second arc-shaped surface is located on the side of the first plane close to the first water inlet and outlet along the first direction.

[0022] In this embodiment, the first plane and the second arc-shaped surface are connected to each other along the first direction. The water tank shell is generally in a cylindrical structure, and most of the outer wall surfaces thereof are arc-shaped surfaces, such as circular arc-shaped surfaces. However, at least part of the outer wall surfaces of the water tank shell are first planes, so as to facilitate the installation of the second water inlet and outlet, the locking structure of the water tank assembly, and the like. For example, during processing, a cylindrical water tank can be first processed, and then part of the outer wall surfaces of the cylindrical water tank are flattened to form the first plane.

[0023] Meanwhile, the length of the first plane along the first direction is less than the length of the water tank shell along the first direction, the side of the first plane close to the first water inlet and outlet is a certain distance away from the end surface where the first water inlet and outlet are located, and the first plane and the end surface where the first water inlet and outlet are located are connected by the second arc-shaped surface. That is, for the entire water tank shell, the entire circumference of the end close to the first water inlet and outlet is an arc-shaped surface (such as a circular arc-shaped surface), but part of the circumferential side wall surface of the end of the water tank shell away from the first water inlet and outlet along the first direction is a plane (which forms the first plane), and the other part is a circular arc-shaped surface.

[0024] Optionally, the second water inlet and outlet comprises one of an elongated hole, a circular hole, and a polygonal hole.

[0025] Further, the first outer side wall surface further comprises a second arc-shaped surface, the second arc-shaped surface is located at a side of the first plane close to the first water inlet and outlet of the water tank shell, that is, the part of the first outer wall surface close to the first water inlet and outlet is arc-shaped instead of planar, so that the outer wall surface around the entire first water inlet and outlet is circular, thereby facilitating the cover body to be also provided in a circular shape, so that the appearance of the entire water tank assembly can be more beautiful, especially when the water tank assembly is used in an oven or the like, the water tank assembly can be consistent with the shape of a rotary knob or the like on the oven, so that the overall aesthetic degree of the oven can be improved.

[0026] Optionally, the water tank shell comprises a mounting section for mounting the cover body, the mounting section surrounds the first water inlet and outlet. The mounting section is cylindrical. The cover body is a circular cover body adapted to the cylindrical mounting section.

[0027] Optionally, the water tank shell comprises two second outer side wall surfaces arranged oppositely, one of a guide rib and a guide groove is arranged on each of the second outer side wall surfaces, the guide rib or the guide groove is arranged along the first direction, the other one of the guide rib and the guide groove is arranged on the inner wall surface of the mounting cavity, and the water tank assembly is movably mounted on the mounting shell through the guide of the guide rib and the guide groove.

[0028] In the above embodiment, optionally, the water tank shell comprises two second outer side wall surfaces arranged oppositely, one of a guide rib and a guide groove is arranged on each of the second outer side wall surfaces, the guide rib or the guide groove is arranged along the first direction, the other one of the guide rib and the guide groove is arranged on the mounting shell, and the water tank assembly is movably mounted on the mounting shell through the guide of the guide rib and the guide groove.

[0029] In this embodiment, the cooperation of the two guide structures can make the water tank assembly more smoothly mounted on the mounting shell, so that the disassembly and assembly of the water tank assembly on the mounting shell are facilitated. At the same time, the guide rib or the guide groove is arranged along the first direction, so that the water tank assembly can be slidably mounted on the mounting shell along the first direction.

[0030] In the above embodiment, optionally, the mounting shell is provided with a water outlet channel at an end away from the cover body; the mounting shell comprises a water storage groove and a water outlet port which are in communication with each other, the water storage groove is arranged corresponding to the water outlet channel and is used for receiving water from the water outlet channel; and the steam cooking appliance comprises a water receiving box which is in communication with the water outlet port, and the water in the water storage groove can be discharged from the water outlet port into the water receiving box.

[0031] In this embodiment, the installation shell is provided with a water storage groove, and the water outlet channel of the water tank assembly corresponds to the water storage groove after the water tank assembly is installed. The water discharged from the water outlet channel can first enter the water storage groove and then be discharged to the water receiving box under the action of gravity. According to this scheme, the water tank assembly is provided with a water storage groove, so that a larger buffer area can be formed at the water outlet of the water tank assembly. When the water flow in the water tank assembly is large or rapid, the water can be first stored in the storage cavity to buffer the impact force of the water, so that the water flow can enter the cooking cavity at a relatively stable flow rate. In this way, the water flow can be prevented from splashing when the water enters the water receiving box. In addition, the water flow can also be prevented from overflowing to other positions of the product or even overflowing from the front end of the water tank assembly when the water discharged from the water tank assembly cannot be discharged in time due to the unsmooth water flow.

[0032] In the above embodiment, optionally, the inner bottom wall of the water storage groove gradually moves away from the center of the installation shell from a position away from the drain port to a position close to the drain port.

[0033] In this embodiment, after water is added to the water tank assembly, the water in the water tank assembly can enter the water storage groove through the water outlet channel. The inner bottom wall surface of the water storage groove gradually decreases from other positions to the position of the drain port. In this way, when the water in the water storage groove is less, the water can be gathered at the water outlet end of the water storage groove, so that the water in the water storage groove can be more easily drained, thereby avoiding water residue in the water storage groove and reducing the residual water in the water storage groove.

[0034] Optionally, in the height direction of the steam cooking utensil, the position of the water outlet channel is above the position of the water storage groove, and the position of the water storage groove is above the position of the water receiving box.

[0035] In any of the above embodiments, optionally, the water tank assembly further comprises a valve assembly installed at the water outlet channel and capable of moving between a first position and a second position to open or close the water outlet channel; and the installation shell comprises a push rod for inserting into the water outlet channel and pushing the valve assembly to move from the first position to the second position to open the water outlet channel when the water tank assembly is installed in the installation cavity.

[0036] In this embodiment, after the water tank assembly is correctly installed on the installation shell, the valve assembly can be lifted by the push rod to open the water outlet channel. After the water tank assembly is removed, the valve assembly can automatically return to the second position to close the water outlet channel. In this way, the opening and closing of the water tank assembly is very convenient. According to this structure, the opening and closing of the water tank assembly can be realized by pure mechanical means without the need for electrical control, so that the opening and closing structure of the water tank assembly is more durable.

[0037] In any of the above technical solutions, optionally, the water tank device further comprises: a first limiting member installed on the mounting shell; a second limiting member arranged on the water tank assembly; when the water tank assembly is located in the mounting cavity, the first limiting member and the second limiting member limit each other to lock the water tank assembly; when the water tank assembly is located in the mounting cavity, pressing the water tank assembly into the mounting cavity can release the limiting between the first limiting member and the second limiting member to unlock the water tank assembly; and an elastic member installed in the water outlet channel, used to push a part of the water tank assembly out of the mounting shell when the water tank assembly is in the unlocked state, and move the valve assembly from the second position to the first position to close the water outlet channel.

[0038] In the embodiments, the water tank assembly and the mounting shell can be locked and unlocked through the first limiting member and the second limiting member. After the water tank assembly is unlocked, the water tank assembly can be taken out of the mounting shell for water filling, cleaning, or maintenance and replacement. Meanwhile, the water tank assembly comprises a water outlet channel, and water in the water tank assembly can be discharged through the water outlet channel. A valve assembly is arranged in the water outlet channel, and a push rod is arranged on the mounting shell. The valve assembly, the push rod, and the elastic member can be used to open and close the water outlet channel. Specifically, when the water tank assembly is installed on the cooking box body and steam needs to be generated, the water tank assembly can be locked through the first limiting member and the second limiting member. At this time, the push rod can be inserted into the water outlet channel to push the valve assembly to move along the water outlet channel from the first position to the second position, so as to open the water outlet channel.

[0039] When the water tank assembly needs to be detached from the cooking box body for water filling, the water tank assembly can be pressed to be unlocked. After the water tank assembly is unlocked, the external force of the push rod acting on the valve assembly disappears, and the valve assembly is reset to the first position under the action of the elastic member, so as to close the water outlet channel of the water tank assembly, and the water outlet channel of the water tank assembly cannot discharge water. Meanwhile, the water tank assembly is pushed out under the action of the elastic member.

[0040] The elastic member can push the water tank assembly out and also make the valve assembly close the water outlet channel. That is, the elastic member for telescopic installation of the water tank assembly and the elastic member required by the valve assembly are the same part. That is, the pushing-out structure of the water tank assembly and the opening and closing structure of the water outlet of the water tank assembly share one elastic member, so as to simplify the structure of the product.

[0041] Of course, in other solutions, the elastic member for telescopic installation of the water tank assembly and the elastic member required by the valve assembly can also be two independent parts.

[0042] The second aspect of the embodiments of the utility model provides a kind of steam cooking utensil, comprising the water tank device of any one of the first aspect.

[0043] Since the steam cooking appliance has the water tank device provided in any one of the embodiments of the first aspect, the steam cooking appliance has all the beneficial effects of the water tank device provided in any one of the embodiments of the first aspect, which will not be repeated here.

[0044] In any of the above technical solutions, optionally, the steam cooking appliance further comprises: a box body, the box body comprising a cooking cavity and a cooking entrance, the cooking entrance being in communication with the cooking cavity; the mounting shell being mounted on the box body, and the water tank assembly being detachably mounted on the box body; a door body, the door body being mounted on the box body to open or close the cooking entrance; a heating device, the heating device being mounted on the box body to heat food materials in the cooking cavity; and a water receiving groove, the water receiving groove being mounted in the box body and being in communication with the water tank assembly, and water in the water receiving groove being capable of being heated into steam by the heating device.

[0045] In this embodiment, the steam cooking appliance comprises a box body and a door body, the box body being provided with a cooking cavity, and the cooking cavity being in communication with a cooking entrance. The door body is mounted on the box body to open and close the cooking entrance. The water receiving box can be a water receiving groove, which is used to store water, and the water in the water receiving groove can be heated into water vapor by the heating device to humidify and water the food materials in the cooking cavity. With this arrangement, the water receiving groove can be directly heated by the existing heating device of the product, and it is not necessary to separately provide a heating structure, so as to simplify the structure of the product. Of course, considering the actual heating requirements, a separate heating structure can also be provided for the water receiving groove.

[0046] The box body and the door body constitute the shell structure of the entire product, and form a cooking box body.

[0047] In any of the above technical solutions, optionally, the mounting shell is mounted on the box body, the mounting port is located at a first end of the box body along a first direction, the first end of the box body is provided with the cooking entrance and an avoiding port avoiding the mounting port, the door body is mounted at the first end of the box body, and the water tank assembly is capable of being inserted into the mounting shell along the first direction from the mounting port.

[0048] In this embodiment, the first direction can be the front-to-back direction of the box body, for example, the water tank assembly can be disassembled from the front side of the box body. The cover body and the water tank shell of the water tank assembly are also assembled along the front-to-back direction, which is equivalent to that the water tank assembly is horizontally mounted on the box body, rather than vertically mounted on the box body. With this structure, the water tank assembly can be horizontally mounted, so as to make the water tank assembly installed relatively high, thereby providing conditions for the water tank assembly to drain water by gravity alone.

[0049] Further, the water tank assembly is mounted at the top of the inner container, or the water tank assembly is mounted at the top of the cooking cavity. With this arrangement, the water tank assembly is arranged relatively high, so as to be more convenient for gravity drainage.

[0050] In any of the above embodiments, optionally, the joint is a pipe mounted on the box, the pipe is detachably connected with the box or integrally connected with the box, the box comprises an inner container, the inner container surrounds a cooking cavity, and an outlet end of the pipe is located inside the cooking cavity and protrudes from an inner wall of the inner container.

[0051] In this embodiment, the joint is an additionally mounted pipe, so that a water guide protrusion does not need to be processed on the inner container, thereby simplifying the structure of the inner container and reducing the processing cost of the inner container. Meanwhile, in order to ensure that the water discharged by the pipe does not flow along the inner wall of the cooking cavity, the outlet end of the pipe is arranged on the inner wall of the cooking cavity and protrudes from the inner wall of the cooking cavity by a length, so that the water can be accurately guided into the water receiving box by the water guide of the pipe, and the water is prevented from flowing to other positions along the cooking cavity.

[0052] In any of the above embodiments, optionally, the pipe is a metal piece.

[0053] In this embodiment, the pipe is arranged as a metal piece, so that the high temperature resistance of the pipe can be improved. Since the pipe needs to be partially inserted into the cooking cavity, the temperature in the cooking cavity is relatively high. Therefore, the pipe is arranged as a metal piece, so that the pipe can withstand the high temperature in the cooking cavity for a long time without deformation, thereby improving the service life of the pipe and preventing the pipe from releasing toxic substances due to melting deformation.

[0054] Optionally, the joint is in a straight line type structure, or the joint is in a curved type structure.

[0055] In this embodiment, the shape of the joint can be reasonably arranged according to the position of the joint and the position of the water receiving box. For example, the joint can be arranged in a straight line type, so that the water flow can flow more smoothly, and the consumption of the joint can be minimized. Of course, when the joint and the water receiving box are far away from each other, a bending structure can be arranged on the joint according to the actual situation, so as to form a curved joint.

[0056] Further, the water tank assembly is mounted on the top of the box, so that the water tank assembly is arranged higher, thereby being more convenient for gravity water.

[0057] In any of the above embodiments, optionally, the steam cooking appliance comprises an oven and / or a steamer. Of course, the steam cooking appliance can also be other devices that need a water tank.

[0058] The additional aspects and advantages of the present application will become apparent from the following description with reference to the accompanying drawings, or can be understood through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0059] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0060] Figure 1 is a structure schematic view of the steam cooking utensil in the embodiment of the utility model;

[0061] Figure 2 is a structure schematic view of the steam cooking utensil in the embodiment of the utility model;

[0062] Figure 3 is an assembly structure schematic view of the water tank assembly and the installation shell in the embodiment of the utility model;

[0063] Figure 4 is an exploded structure schematic view of the water tank device in the embodiment of the utility model;

[0064] Figure 5 is a structure schematic view of the water receiving box in the embodiment of the utility model;

[0065] Figure 6 is an assembly structure schematic view of the water receiving box, the first support and the second support in the embodiment of the utility model;

[0066] Figure 7 is an installation state schematic view of the two second supports and the first support in the embodiment of the utility model;

[0067] Figure 8 is a structure schematic view of the steam cooking utensil in the embodiment of the utility model;

[0068] Figure 9 is a structure schematic view of the water tank assembly in the embodiment of the utility model;

[0069] Figure 10 is a partial structure schematic view of the steam cooking utensil in the embodiment of the utility model;

[0070] Figure 11 is a partial structure schematic view of the water tank assembly in the embodiment of the utility model;

[0071] Figure 12 is a structure schematic view of the water tank assembly in the embodiment of the utility model.

[0072] Corresponding relationship between the reference signs and the component names in the drawings is as follows: Figures 1 to 12

[0073] ​1 cooking box, 10 food material bearing member, 102 baking tray, 12 box body, 122 cooking inlet, 124 avoiding port, 126 inner bag, 1262 bag side wall, 1264 bag top, 1266 installation plane, 14 door body, 16 cooking cavity, 2 heating device, 22 heating tube, 3 water receiving box, 32 turnup, 34 water receiving groove, 4 water tank assembly, 40 water tank shell, 401 first water inlet and outlet, 402 second limiting piece, 403 first arc surface, 4032 second outer side wall surface, 404 first outer side wall surface, 4042 first plane, 4044 second arc surface, 405 guide rib, 406 water level scale structure, 408 second water inlet and outlet, 42 water containing cavity, 44 water outlet channel, 46 cover body, 48 valve assembly, 49 sealing ring, 492 inner ring, 494 outer ring, 496 gap, 5 first support, 52 support strip, 6 second support, 62 support part, 7 joint, 72 water guide protrusion, 74 connecting channel, 76 pipe, 8 connecting pipe, 82 hose, 9 installation shell, 90 water outlet, 92 installation cavity, 922 first part inner wall surface, 924 second part inner wall surface, 93 installation port, 94 water storage groove, 96 push rod, 982 bottom shell, 984 upper cover, 99 first limiting piece, 11 elastic member. DETAILED DESCRIPTION

[0074] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be described in further detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0075] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced without other different ways from those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0076] The embodiments of the present application will be described below with reference to Figures 1 to 12 to describe the water tank device and the steam cooking appliance provided by the embodiments of the present application.

[0077] As Figures 1 to 12The utility model discloses a water tank device, for steam cooking utensil, water tank device includes installation shell 9, water tank subassembly 4. Installation shell 9 includes installation cavity 92, and installation cavity 92 one end is provided with installation mouth 93. Water tank subassembly 4 includes water tank shell 40 and cover 46. Water tank shell 40 includes water containing cavity 42 and with water containing cavity 42 communication's first inlet and outlet water port 401. First inlet and outlet water port 401 set up in water tank shell 40 one end (such as set up on water tank shell's top end face), and cover 46 can detachably install at water tank shell 40 first inlet and outlet water port 401, to open or close first inlet and outlet water port 401. Water tank shell 40 still is provided with second inlet and outlet water port 408. Among them, water tank subassembly 4 can detachably install on installation shell 9, and when water tank subassembly 4 installs on installation shell 9, can move between first position and second position along first direction (first direction can be installation mouth 93's axial direction), when water tank subassembly 4 is located first position, water tank subassembly 4 is located in installation cavity 92, when water tank subassembly 4 is located second position, second inlet and outlet water port 408 are located outside installation cavity 92.

[0078] According to the water tank device provided by the utility model, can be used in steam cooking utensil such as steam oven. Through the water tank device, water can be supplied to the cooking cavity 16 of the steam cooking utensil, so that the water in the steam cooking utensil can be heated into steam to realize humidification of the food materials in the cooking cavity 16. The water tank device specifically includes a water tank assembly 4 and a mounting shell 9. The mounting shell 9 is used to support the installation of the water tank assembly 4. When mounting, the mounting shell 9 can be fixed to the box body 12 of the steam cooking utensil or the like, and then the water tank assembly 4 is detachably mounted in the mounting shell 9. In this way, the water tank assembly 4 can be individually detached, so that the water tank assembly 4 can be conveniently detached from the product for cleaning and water filling. At the same time, due to the mounting shell 9, the water tank assembly 4 does not need to be connected to the water receiving box 3 or the like. Therefore, the water tank assembly 4 does not need any pipe connection operation during mounting and dismounting, which makes the dismounting of the water tank assembly 4 very convenient, thereby facilitating the removal of the water tank assembly 4 for cleaning or water filling.

[0079] The water tank assembly 4 specifically comprises a water tank shell 40 and a cover 46, the water tank shell 40 is provided with a first water inlet / outlet 401, and the cover 46 is detachably mounted on the first water inlet / outlet 401 of the water tank shell 40. With this structure, since the detachable cover 46 is specially provided, when the water tank assembly 4 needs to be cleaned, the cover 46 can be opened to clean the inside of the water tank shell 40, thereby improving the cleaning convenience of the water tank assembly 4 and ensuring the cleanliness of the water tank assembly 4. At the same time, since the user can open the cover 46 to view the inside of the water tank shell 40, it is convenient for the user to check the dirt inside the water tank assembly 4 in time, so that the user can discover the dirt in the water tank assembly 4 more quickly, thereby facilitating the user to clean the water tank assembly 4 in time, so that the user can use the water tank assembly 4 more confidently.

[0080] At the same time, in the present application, the water tank assembly 4 can be extended and retracted relative to the mounting shell 9. That is, the water tank assembly 4 can be mounted in the first position in the mounting shell 9, or can be extended from the mounting opening 93 to the outside of the mounting cavity 92, at this time, the water tank assembly 4 is located in the second position. When the water tank assembly 4 is located in the second position, the second water inlet / outlet 408 is located outside the mounting cavity 92. With this structure, when water needs to be added to the water tank assembly 4, the water tank assembly 4 can be moved from the first position to the second position to expose the second water inlet / outlet 408, and then water can be added to the water tank assembly 4 through the second water inlet / outlet 408. The provision of the second water inlet / outlet 408 enables the user to add water without having to disassemble the water tank assembly 4, thereby facilitating the user to add water to the water tank assembly 4 during cooking.

[0081] As can be seen, in the present application, when water is added to the water tank assembly 4, the entire water tank assembly 4 can be disassembled and the cover 46 can be opened to add water, or the water tank assembly 4 can be partially extracted relative to the mounting shell 9 to add water to the water tank assembly 4 through the second water inlet / outlet 408, thereby making the water adding mode of the water tank assembly 4 more flexible and diverse, thereby improving the user experience.

[0082] In any of the above embodiments, as shown in Figure 1 , Figure 2 and Figure 9 , the first water inlet / outlet 401 is arranged at one end of the water tank shell 40 along a first direction, and the cover 46 is mounted at the end of the water tank shell 40 along the first direction. The first direction can be a horizontal direction, and after the water tank assembly 4 is installed, the cover 46 and the water tank shell 40 are connected along the horizontal direction.

[0083] In this embodiment, the cover 46 is mounted on the end of the water tank shell 40, and the water tank shell 40 is horizontally (in the first direction) mounted in the mounting shell 9 instead of being vertically mounted in the mounting shell 9. With this arrangement, after the water tank assembly 4 is mounted, the cover 46 is arranged on the top of the water tank shell 40 instead of being arranged on the bottom of the water tank assembly 4, so that the second water inlet / outlet 408 can be arranged on the side wall of the water tank shell 40 in the height direction, thereby facilitating the user to add water through the second water inlet / outlet 408.

[0084] In this embodiment, when the water tank assembly is mounted, the entire water tank assembly can be mounted in the front-rear direction of the cooking cabinet 1, so that the water tank assembly 4 can be moved in the front-rear direction relative to the cooking cabinet 1. For example, the water tank assembly 4 can be disassembled from the front side of the cooking cabinet 1. The cover 46 and the water tank shell 40 of the water tank assembly 4 are also assembled in the front-rear direction, which is equivalent to that the water tank assembly 4 is horizontally mounted on the cooking cabinet 1 instead of being vertically mounted on the cooking cabinet 1, thereby facilitating the user to add water through the second water inlet / outlet 408.

[0085] In any of the above embodiments, optionally, as shown in Figure 1 , Figure 2 , Figure 9 and Figure 11 , when the water tank assembly 4 is in the first position, the cover 46 is arranged close to the mounting port 93; and the second water inlet / outlet 408 is arranged on the side wall of the mounting shell 9 close to the end of the cover 46; and when the water tank assembly 4 is in the second position, the cover 46 is outside the mounting cavity 92.

[0086] In this embodiment, when the water tank assembly 4 is inserted into the mounting cavity 92 from the mounting port 93, the bottom of the water tank shell 40 can be inserted into the mounting cavity 92 first, so that after the water tank assembly 4 is mounted, the cover 46 is located on the outside. And the second water inlet / outlet 408 is also arranged close to the cover 46, which makes the two water inlet / outlets of the water tank assembly 4 arranged on the same side, so that after the water tank assembly 4 is disassembled, the user can arrange the end of the water tank assembly 4 with the cover 46 upward to add water. That is, with this arrangement, the second water inlet / outlet 408 can be arranged higher, so that the water in the water tank shell 40 is less likely to leak from the second water inlet / outlet 408.

[0087] In any of the above embodiments, optionally, as shown in Figure 9 and Figure 11 , the water tank assembly 4 further comprises a sealing ring 49 arranged between the water tank shell 40 and the cover 46 to seal the gap 496 between the water tank shell 40 and the cover 46. By arranging the sealing ring 49, the sealing between the water tank shell 40 and the cover 46 can be ensured, thereby avoiding water leakage of the water tank assembly 4.

[0088] In any of the above embodiments, optionally, as shown in Figure 11 The sealing ring 49 comprises an inner ring 492 and an outer ring 494, one end of the inner ring 492 and the outer ring 494 are connected to each other, the other end of the outer ring 494 is arranged outside the inner ring 492 along the circumferential direction of the inner ring 492, and a gap 496 is arranged between the other end of the outer ring 494 and the inner ring 492 along the radial direction of the sealing ring 49.

[0089] In this embodiment, the sealing ring 49 comprises the inner ring 492 and the outer ring 494, i.e. the sealing ring 49 has a double-layer structure. The gap 496 is formed between the inner ring 492 and the outer ring 494, and the deformation ability of the sealing ring 49 can be improved through the gap 496, so as to improve the sealing effect of the sealing ring 49. In addition, through the gap 496 of the sealing ring 49, the sealing ring 49 can better adapt to the different sizes between the cover body 46 and the water tank shell 40, i.e. the sealing ring 49 can adjust the overall size of the sealing ring 49 according to the different sizes between the cover body 46 and the water tank shell 40, so as to reduce the processing precision requirement of the cover body 46 and the water tank shell 40.

[0090] In any of the above embodiments, optionally, as shown in Figure 9 、 Figure 11 and Figure 12 The water tank shell 40 comprises a first arc surface 403 arranged along the circumferential direction of the water tank shell 40, two ends of the first arc surface 403 arranged along the circumferential direction of the water tank shell 40 are connected through a first outer side wall surface 404, the first outer side wall surface 404 comprises a first plane 4042 and a second arc surface 4044, the second water inlet / outlet 408 is arranged on the first plane 4042, and the second arc surface 4044 is located on the side of the first plane 4042 close to the first water inlet / outlet 401 of the water tank shell 40 along the first direction.

[0091] In this embodiment, the first plane and the second arc surface are connected to each other along the first direction. The water tank shell 40 is generally in a cylindrical structure, and most of the outer wall surfaces thereof are arc surfaces, such as circular arc surfaces. However, at least part of the outer wall surfaces of the water tank shell 40 are the first plane 4042, and the first plane 4042 is arranged to facilitate the installation of the second water inlet / outlet 408, the locking structure of the water tank assembly 4, etc. For example, during processing, the cylindrical water tank can be first processed, and then part of the outer wall surfaces of the cylindrical water tank are flattened to form the first plane 4042.

[0092] In addition, through the arrangement of the first plane 4042, the user can also distinguish the front and back of the water tank shell 40, so as to avoid the installation error of the water tank assembly 4.

[0093] Meanwhile, the first plane 4042 has a length along the first direction which is less than that of the water tank shell 40 along the first direction, the first plane 4042 is located at a distance from the side of the water tank shell 40 which is close to the first water inlet / outlet 401 and the end face where the first water inlet / outlet 401 is located, and the first plane 4042 and the end face where the first water inlet / outlet 401 is located are connected by a second arc plane 4044. That is, for the entire water tank shell 40, the entire circumference of the end close to the first water inlet / outlet 401 is an arc plane (such as a circular arc plane), but a part of the circumferential side wall plane of the water tank shell 40 away from the first water inlet / outlet 401 along the first direction is a plane (which forms the first plane 4042), and the other part is a circular arc plane.

[0094] In any of the above embodiments, optionally, the second water inlet / outlet 408 comprises one of an elongated hole, a circular hole and a polygonal hole.

[0095] In this embodiment, the shape of the second water inlet / outlet 408 can be reasonably set according to actual needs, for example, it can be set as an oval hole or a waist-shaped hole, etc.

[0096] Further, as shown in Figure 9 the first outer side wall plane 404 further comprises a second arc plane 4044, the second arc plane 4044 is located at the side of the first plane 4042 close to the first water inlet / outlet 401 of the water tank shell 40, that is, the part of the first outer wall plane close to the first water inlet / outlet 401 is arc-shaped, not a plane, so that the entire outer wall plane around the first water inlet / outlet 401 is circular, thereby facilitating the setting of the cover body 46 as a circular shape, so that the appearance of the entire water tank assembly 4 can be more beautiful, especially when the water tank assembly 4 is used in an oven, etc., the shape of the water tank assembly 4 can be consistent with that of the knob, etc. on the oven, so that the overall beauty of the oven can be improved.

[0097] Optionally, the water tank shell 40 comprises a mounting section for mounting the cover body 46, the mounting section surrounds the first water inlet / outlet 401. The mounting section is cylindrical. The cover body 46 is a circular cover which is adapted to the cylindrical mounting section.

[0098] In any of the above embodiments, optionally, as shown in Figure 12 the water tank shell 40 comprises two oppositely arranged second outer side wall planes 4032, one of the guide ribs 405 and the guide grooves is arranged on each of the second outer side wall planes 4032, the guide ribs 405 or the guide grooves are arranged along the first direction, and the water tank assembly 4 can be movably mounted on the mounting shell 9 through the guidance of the guide ribs 405 and the guide grooves.

[0099] In the above embodiment, optionally, as shown in Figure 12As shown, the water tank shell 40 includes two second outer side wall surfaces 4032 oppositely arranged, and each of the second outer side wall surfaces 4032 is provided with one of the guide ribs 405 and the guide grooves, and the guide ribs 405 or the guide grooves are arranged along the first direction. The mounting shell 9 is provided with the other one of the guide ribs 405 and the guide grooves, and the water tank assembly 4 is movably mounted on the mounting shell 9 through the guide of the guide ribs 405 and the guide grooves.

[0100] In this embodiment, the water tank shell 40 is provided with the guide structure, such as the guide rib 405 or the guide groove, on the outer wall surface of each of the two oppositely arranged sides. Meanwhile, the other guide structure is arranged in the mounting shell 9. Thus, the water tank assembly 4 can be more smoothly mounted on the mounting shell 9 through the cooperation of the two guide structures, so as to facilitate the dismounting and mounting of the water tank assembly 4 on the mounting shell 9. Meanwhile, the guide rib 405 or the guide groove is arranged along the first direction, so that the water tank assembly 4 can be slidably mounted on the mounting shell 9 along the first direction.

[0101] In the above embodiment, optionally, Figure 12 As shown, the second outer side wall surface 4032 is provided with the guide rib 405, and the cross-sectional area of the guide rib 405 gradually decreases from the second outer side wall surface 4032 to the end of the guide rib 405 away from the second outer side wall surface 4032.

[0102] In this embodiment, the inclined surfaces are arranged on the upper and lower sides of the guide rib 405, so as to reduce the width of the top of the guide rib 405, and thus the guide area of the guide rib 405 in contact with the cooking tank body 1 can be reduced, so that the water tank assembly 4 can be more smoothly pulled and slid. For example, the cross-section of the guide rib 405 can be arranged in a trapezoidal structure or a triangular structure or an arc-shaped structure.

[0103] As shown in Figure 3 and Figure 4 The water tank shell 40 is provided with the water outlet channel 44 at the end away from the cover body 46. The mounting shell 9 includes the water storage groove 94 and the water outlet 90 in communication with each other, and the water storage groove 94 is arranged corresponding to the water outlet channel 44 and used for receiving the water from the water outlet channel 44. The water receiving box 3 is in communication with the water outlet 90, and the water in the water storage groove 94 can be discharged from the water outlet 90 to the water receiving box 3.

[0104] In this embodiment, the water tank assembly 4 is provided with a water storage groove 94. After the water tank assembly 4 is installed, the water outlet channel 44 of the water tank assembly 4 corresponds to the water storage groove 94. The water discharged from the water outlet channel 44 can first enter the water storage groove 94, and then be discharged from the water storage groove 94 to the water receiving box 3 under the action of gravity. In this way, the water outlet of the water tank assembly 4 can form a larger buffer area. When the water flow in the water tank assembly 4 is large or rapid, the water can be first stored in the storage cavity to buffer the impact force of the water, so that the water flow can enter the cooking cavity 16 at a relatively stable flow rate. In this way, the water flow can be prevented from splashing after entering the water receiving box 3 when the water flow is large. In addition, through the buffering of the water flow by the water storage groove 94, the water discharged from the water tank assembly 4 can also be prevented from overflowing to other positions of the product or even overflowing from the front end of the water tank assembly 4 when the waterway is not smooth.

[0105] For example, for the case of directly adding water to the water tank assembly 4 without removing the water tank assembly 4, the water flow is large when water is added to the water tank assembly 4. At this time, the water flow has a large impact force, which can easily cause the water flow output by the water tank assembly 4 to be unstable and can easily cause the water to overflow from the water tank assembly 4. The application can well solve the problems of unstable water flow output by the water tank assembly 4 and easy overflow of the water tank assembly 4 by additionally providing a water storage groove 94 at the water outlet channel 44.

[0106] In any of the above embodiments, optionally, as shown in Figure 3 The inner bottom wall of the water storage groove 94 gradually decreases from a position away from the drain port 90 to a position close to the drain port 90.

[0107] In this embodiment, when the water in the water storage groove 94 is less, the water can be gathered at the water outlet end of the water storage groove 94, so that the water in the water storage groove 94 can be more easily drained, thereby avoiding water residue in the water storage groove 94, and reducing the residual water in the water storage groove 94.

[0108] In any of the above embodiments, optionally, as shown in Figure 3 The mounting shell 9 includes a mounting cavity 92. One end of the mounting cavity 92 is provided with a mounting port 93. The water tank assembly 4 can be mounted into the mounting cavity 92 through the mounting port 93 and can be detachably fixed in the mounting cavity 92.

[0109] In the embodiments, the mounting shell 9 is used to support the water tank assembly 4. During installation, the mounting shell 9 can be fixed to the box body 12 of the steam cooking appliance, and then the water tank assembly 4 can be detachably installed in the mounting shell 9, so that the water tank assembly 4 can be individually detached, thereby facilitating the detachment of the water tank assembly 4 from the product for cleaning and water filling. Meanwhile, due to the provision of the mounting shell 9, the water tank assembly 4 does not need to be connected to the water receiving box 3, so that the water tank assembly 4 does not need any pipe connection operation during installation and detachment, thereby making the detachment of the water tank assembly 4 very convenient, and thus facilitating the detachment of the water tank assembly 4 for cleaning or water filling.

[0110] In any of the above embodiments, optionally, as shown in Figure 3 the mounting cavity 92 comprises a first portion inner wall surface 922 and a second portion inner wall surface 924, the first portion inner wall surface 922 is matched with the shape of the water tank assembly 4, and the second portion inner wall surface 924 is recessed towards the outside of the mounting cavity 92 to form the water storage groove 94.

[0111] In the embodiments, the water tank assembly 4 is installed in the mounting shell 9, and the shape and size of a portion of the inner wall of the mounting cavity 92 are consistent with those of the outer shell of the water tank assembly 4, so that the water tank assembly 4 can be installed in the mounting shell 9, and the fitting degree of the water tank assembly 4 and the mounting shell 9 is ensured, thereby enabling the water tank assembly 4 to be better positioned and installed by the mounting shell 9.

[0112] Meanwhile, the inner wall surface of the lower part of the rear part of the mounting cavity 92 can be recessed downward to form the required water storage groove 94, thereby facilitating the buffering of the water output by the water tank assembly 4. In this structure, the mounting area of the water tank assembly 4 and the water storage groove 94 are arranged together, so that the outlet of the water tank assembly 4 and the water storage groove 94 are directly connected, thereby ensuring the fitting precision between the water tank assembly 4 and the water storage groove 94, making the water path more unobstructed, and avoiding the misalignment of the water tank assembly 4 and the water storage groove 94 due to the improper installation of the water tank assembly 4.

[0113] In any of the above embodiments, optionally, as shown in Figure 3 and Figure 4 when the water tank assembly 4 is installed in the mounting cavity 92, the outlet of the water outlet channel 44 is located above the water storage groove 94 in the height direction of the box body 12, so that the water in the water tank assembly 4 can flow into the water storage groove 94 under the action of gravity.

[0114] In the embodiments, the outlet of the water tank assembly 4 is directly arranged above the water storage groove 94, so that there is no any obstruction at the outlet of the water tank assembly 4, thereby ensuring that the water in the water tank assembly 4 can enter the water storage groove 94 as soon as possible under the action of gravity. In the embodiments, the outlet of the water tank assembly 4 is directly arranged above the water storage groove 94, so that there is no any obstruction at the outlet of the water tank assembly 4, thereby ensuring that the water in the water tank assembly 4 can enter the water storage groove 94 as soon as possible under the action of gravity.

[0115] In any of the above embodiments, optionally, as shown in Figure 3 and Figure 4 The mounting shell 9 comprises a bottom shell 982 and an upper cover 984, which enclose the mounting cavity 92, and a part of the structure of the bottom shell 982 is bent away from the upper cover 984 to form the water storage groove 94. This way of forming the water storage groove 94 is relatively simple, which makes the mounting shell 9 easier to process, and thus the processing cost of the mounting shell 9 can be reduced.

[0116] Of course, in other solutions, a protruding rib can be formed inside the mounting shell 9 to enclose the water storage groove 94, or the mounting shell 9 can be made thicker as a whole, and then the water storage groove 94 is formed by removing part of the wall thickness.

[0117] In any of the above embodiments, optionally, as shown in Figure 3 and Figure 4 In the height direction of the steam cooking appliance, the water outlet channel 44 is located above the water storage groove 94, and the water storage groove 94 is located above the water receiving box 3.

[0118] In this embodiment, the height positions of the water outlet channel 44, the water outlet 90 and the water receiving box 3 gradually decrease, so that the water flow can enter the water storage groove 94 from the water outlet channel 44 under the action of gravity, and then enter the water receiving box 3 from the water outlet 90 of the water storage groove 94. This way, the water in the water tank assembly 4 can flow into the water receiving box 3 purely by gravity. With this structure, the water in the water tank assembly 4 can flow into the water receiving box 3 under the action of gravity. That is, there is no power equipment between the water tank assembly 4 and the water receiving box 3, and the water in the water tank assembly 4 flows into the water receiving box 3 purely by gravity. This way, the water adding operation can be achieved purely by mechanical structure, without the need to set a water pump or rely on any electric control elements. This way, the dependence of the water tank device on the water pump and the electric control can be reduced, so that the structure of the product can be simplified and the cost of the product can be reduced.

[0119] In any of the above embodiments, optionally, as shown in Figure 3 and Figure 9 The water tank assembly 4 further comprises a valve assembly 48 installed at the water outlet channel 44 and movable between a first position and a second position to open or close the water outlet channel 44; and the mounting shell 9 comprises a push rod 96 for inserting into the water outlet channel 44 and pushing the valve assembly 48 to move from the first position to the second position to open the water outlet channel 44 when the water tank assembly 4 is installed in the mounting cavity 92.

[0120] In this embodiment, after the water tank assembly 4 is correctly installed on the mounting shell 9, the valve assembly 48 can be pushed up by the push rod 96 to open the water outlet passage 44. After the water tank assembly 4 is removed, the valve assembly 48 can automatically return to the second position to close the water outlet passage 44. This makes the opening and closing of the water tank assembly 4 very convenient. The opening and closing of the water tank assembly 4 can be achieved purely mechanically without using electric control, which makes the opening and closing structure of the water tank assembly 4 more durable.

[0121] In any of the above embodiments, as shown in Figure 4 and Figure 9 optionally, the water tank device further comprises: a first limiting member 99 installed on the mounting shell 9; a second limiting member 402 provided on the water tank assembly 4; when the water tank assembly 4 is located in the mounting cavity 92, the first limiting member 99 and the second limiting member 402 limit each other to lock the water tank assembly 4; when the water tank assembly 4 is located in the mounting cavity 92 and the water tank assembly 4 is pressed into the mounting cavity 92, the limiting between the first limiting member 99 and the second limiting member 402 can be released to unlock the water tank assembly 4; and an elastic member 11 installed in the water outlet passage 44, used to push a part of the water tank assembly 4 out of the mounting shell 9 when the water tank assembly 4 is in the unlocked state, and move the valve assembly 48 from the second position to the first position to close the water outlet passage 44.

[0122] In these embodiments, the water tank assembly 4 and the mounting shell 9 can be locked and unlocked by the first limiting member 99 and the second limiting member 402. After the water tank assembly 4 is unlocked, the water tank assembly 4 can be taken out of the mounting shell 9 for water filling, cleaning or maintenance and replacement. At the same time, the water tank assembly 4 comprises a water outlet passage 44, and the water in the water tank assembly 4 can be discharged through the water outlet passage 44. A valve assembly 48 is provided in the water outlet passage 44, and a push rod 96 is provided on the mounting shell 9, and the water outlet passage 44 can be opened and closed by the valve assembly 48, the push rod 96 and the elastic member 11. Specifically, when the water tank assembly 4 is installed on the cooking box body 1 and steam needs to be generated, the water tank assembly 4 can be locked by the first limiting member 99 and the second limiting member 402, at this time, the push rod 96 can be inserted into the water outlet passage 44 to push the valve assembly 48 along the water outlet passage 44 from the first position to the second position, thereby opening the water outlet passage 44.

[0123] When the water tank assembly 4 needs to be detached from the cooking box 1 for water refilling, the water tank assembly 4 can be pressed first to unlock the water tank assembly 4, and after the water tank assembly 4 is unlocked, the external force of the push rod 96 acting on the valve assembly 48 disappears, and the valve assembly 48 is reset to the first position under the action of the elastic member 11, so as to close the water outlet channel 44 of the water tank assembly 4, so that the water outlet channel 44 of the water tank assembly 4 cannot outlet water. At the same time, the water tank assembly 4 is pushed out under the action of the elastic member 11.

[0124] The elastic member 11 can push out the water tank assembly 4 and also make the valve assembly 48 close the water outlet channel 44, that is, the elastic member 11 required for the telescopic installation of the water tank assembly 4 and the elastic member 11 required for the valve assembly 48 are the same part, that is, the elastic member 11 is shared by the pushing-out structure of the water tank assembly 4 and the opening and closing structure of the water outlet of the water tank assembly 4, so that the structure of the product is simplified.

[0125] Of course, in other schemes, the elastic member 11 required for the telescopic installation of the water tank assembly 4 and the elastic member 11 required for the valve assembly 48 can also be two independent parts.

[0126] In any of the above embodiments, optionally, when the water tank assembly 4 is in the locked state, the elastic member 11 is in the compressed state, and after the water tank assembly 4 is unlocked, the elastic member 11 can be elongated to push a part of the water tank assembly 4 out of the mounting shell 9 and make the valve assembly 48 move from the second position to the first position to close the water outlet channel 44.

[0127] In the embodiments, when the water tank assembly 4 is in the locked state, the elastic member 11 is in the compressed state. When the water tank assembly 4 is in the unlocked state, the elastic member 11 can be elongated to push the water tank assembly 4 out of the mounting shell 9, and after the water tank assembly 4 is pushed out of the mounting shell 9, the push rod 96 is separated from the water outlet channel 44, and the valve assembly 48 returns to the second position under the action of the elastic member 11, thereby closing the water outlet channel 44.

[0128] Of course, in other schemes, when the water tank assembly 4 is in the locked state, the elastic member 11 can also be set to the elongated state.

[0129] As shown in FIG. 1, Figures 1 to 10 The second aspect of the embodiments of the utility model provides a steam cooking utensil which comprises the water tank device provided by any one of the first aspect.

[0130] Since the steam cooking utensil has the water tank device provided by any one of the first aspect, the steam cooking utensil has all the beneficial effects of the water tank device provided by any one of the first aspect, which will not be repeated here.

[0131] In any of the above embodiments, optionally, as shown in Figure 1 , Figure 2 and Figure 8 , the steam cooking appliance further comprises: a cabinet 12, the cabinet 12 comprising a cooking cavity 16 and a cooking inlet 122, the cooking inlet 122 being in communication with the cooking cavity 16, the mounting shell 9 being mounted on the cabinet 12, the water tank assembly 4 being detachably mounted on the cabinet 12; a door body 14 mounted on the cabinet 12 to open or close the cooking inlet 122; a heating device 2 mounted on the cabinet 12 for heating food materials in the cooking cavity 16, the water receiving box 3 comprising a water receiving groove 34 mounted in the cabinet 12, water in the water receiving groove 34 being capable of being heated into steam by the heating device 2.

[0132] In this embodiment, the steam cooking appliance comprises a cabinet 12 and a door body 14, the cabinet 12 being provided with a cooking cavity 16 therein, the cooking cavity 16 being in communication with a cooking inlet 122. The door body 14 is mounted on the cabinet 12 for opening and closing the cooking inlet 122. The water receiving box 3 can be a water receiving groove 34, which is used to store water, and the water in the water receiving groove 34 can be heated into steam by the heating device 2 to humidify and supplement water for food materials in the cooking cavity 16. With this arrangement, the water receiving groove 34 can be directly heated by the existing heating device 2 of the product, and a separate heating structure does not need to be provided, thereby simplifying the structure of the product. Of course, considering the actual heating requirements, a separate heating structure can also be provided for the water receiving groove 34.

[0133] The cabinet 12 and the door body 14 constitute the shell structure of the entire product, which forms a cooking cabinet 1.

[0134] In any of the above embodiments, optionally, as shown in Figure 1 , Figure 8 and Figure 9 , the mounting shell 9 is mounted on the cabinet 12, the mounting port 93 is located at a first end of the cabinet 12 along a first direction, the mounting port 93 and the first end of the cabinet 12 along the first direction are provided with the cooking inlet 122 and the avoiding port 124 avoiding the mounting port 93, the door body 14 is mounted at the first end of the cabinet 12, and the water tank assembly 4 is capable of being inserted into the mounting shell 9 from the mounting port 93 along the first direction. The water tank assembly 4 comprises: a water tank shell 40 comprising a water containing cavity 42 and a first water inlet and outlet port 401 in communication with the water containing cavity 42, the first water inlet and outlet port 401 being provided at one end of the water tank shell 40 along the first direction; a cover body 46 detachably mounted on the water tank shell 40 to open or close the first water inlet and outlet port 401; and a sealing ring 49 provided between the water tank shell 40 and the cover body 46 to seal the gap between the water tank shell 40 and the cover body 46.

[0135] In this embodiment, the water tank assembly 4 specifically comprises a water tank shell 40 and a cover 46, the water tank shell 40 is provided with a first water inlet and outlet 401, and the cover 46 is detachably covered on the first water inlet and outlet 401 of the water tank shell 40. At the same time, in order to ensure the sealing between the water tank shell 40 and the cover 46, a sealing ring 49 is arranged between the two, which can realize the sealing connection between the two, so as to avoid water leakage of the water tank assembly 4.

[0136] In the related scheme, the water tank assembly arranged on the oven is directly provided with a water inlet on the side wall of the water tank shell, without a detachable cover, so that the interior of the water tank cannot be opened, and it is very inconvenient to clean the interior of the water tank. In the present application, a detachable cover 46 is specially arranged, so that when the water tank assembly 4 needs to be cleaned, the cover 46 can be opened to clean the interior of the water tank shell 40, which improves the cleaning convenience of the water tank assembly 4 and ensures the cleanliness of the water tank assembly 4. At the same time, since the user can open the cover 46 to view the interior of the water tank shell 40, it is convenient for the user to check the dirt condition in the interior of the water tank assembly 4 in time, so that when there is dirt in the interior of the water tank assembly 4, it can be found by the user more quickly, thereby facilitating the user to clean the water tank assembly 4 in time, so that the user can use the water tank assembly 4 more confidently.

[0137] When installing, the water tank assembly 4 can be inserted into the installation shell 9 from the installation opening 93, and further, one end of the installation shell 9 provided with the installation opening 93 is located in the avoiding opening 124, so that the installation opening 93 can be exposed relative to the box body 12, thereby facilitating the disassembly and assembly of the water tank assembly 4. Further, the avoiding opening 124 and the installation shell 9 are sealingly connected.

[0138] The first direction can be specifically the front-to-back direction of the box body 12, for example, the water tank assembly 4 can be disassembled and assembled from the front side of the box body 12. The cover 46 and the water tank shell 40 of the water tank assembly 4 are also assembled along the front-to-back direction, which is equivalent to that the water tank assembly 4 is installed horizontally on the box body 12, rather than vertically on the box body 12. This structure can horizontally install the water tank assembly 4, so that the water tank assembly 4 can be installed relatively high, thereby providing conditions for the water tank assembly 4 to drain water by gravity.

[0139] Further, the water tank assembly 4 is installed on the top of the inner container 126, or the water tank assembly 4 is installed on the top of the cooking cavity 16. This arrangement makes the water tank assembly 4 arranged higher, thereby facilitating the use of gravity to drain water.

[0140] In any of the above embodiments, optionally, as Figure 4 and Figure 8As shown, the water tank device further comprises a connector 7 arranged on the tank body 12, an outlet end of the connector 7 corresponding to the water receiving box 3; a connecting pipe 8 for connecting the water outlet 90 and the connector 7, so that the water in the water storage groove 94 can be transported to the water receiving box 3 through the water outlet 90, the connecting pipe 8 and the connector 7; wherein the outlet end of the connector 7 is located inside the cooking cavity 16 and protrudes from the inner wall of the cooking cavity 16, and along the height direction of the tank body 12, the outlet end of the connector 7 is located above the water receiving box 3.

[0141] In this embodiment, the outlet end of the connector 7 is located inside the cooking cavity 16 and protrudes from the inner wall of the cooking cavity 16, so that the water flowing out of the outlet end of the connector 7 can be guided away from the inner wall of the cooking cavity 16 and will not flow along the inner wall of the cooking cavity 16, so that the water flowing out of the outlet end of the connector 7 can flow into the water receiving box 3, so as to avoid the water flowing to other positions of the cooking cavity 16 when the water is supplied to the water receiving box 3, thereby affecting the cooking of the product, so that there is no obvious turbulence at the water outlet of the connector 7, so as to ensure the cleanliness of other positions in the cooking cavity 16 and avoid the other positions in the cooking cavity 16 being wetted by water.

[0142] Further, in order to ensure that the water in the water tank assembly 4 can flow to the connector 7, as shown in Figure 1 and Figure 4 , a connecting pipe 8 is arranged between the connector 7 and the water tank assembly 4. Through the connecting pipe 8, the water in the water tank assembly 4 can be transported to the water receiving box 3 in time. Through the arrangement of the connecting pipe 8, the installation position of the water tank assembly 4 is more flexible, which is more conducive to the overall layout of the product. Of course, in other schemes, the connecting pipe 8 can not be arranged, and the outlet of the water tank assembly 4 can be directly connected with the connector 7.

[0143] In addition, by directly transporting the water to the water receiving box 3 through the connecting pipe 8, the water can be guided to avoid flowing into other places, and at the same time, the water can also be prevented from falling directly from a height, so as to reduce the water flow noise.

[0144] The connecting pipe 8 can be a separate pipe structure or a channel structure surrounded by the shell structure of the tank body 12.

[0145] In any of the above embodiments, as shown in Figure 10 , the tank body 12 comprises a tank side wall 1262 and a tank top 1264 connected with each other, and the connector 7 is arranged at the connection between the tank side wall 1262 and the tank top 1264.

[0146] In this embodiment, the joint 7 is arranged at the joint of the gallbladder side wall 1262 and the gallbladder top 1264, so that the joint 7 is arranged relatively close to the corner of the box body 12, thereby reducing the area occupied by the joint 7 and improving the space utilization in the cooking cavity 16.

[0147] In any of the above embodiments, as shown in Figure 10 , a mounting plane 1266 is arranged at the joint of the gallbladder side wall 1262 and the gallbladder top 1264, and the mounting plane 1266 is arranged obliquely relative to the height direction of the box body 12, and the joint 7 is arranged on the mounting plane 1266.

[0148] In this embodiment, in order to ensure the stability of the installation of the joint 7, or to facilitate the processing of the joint 7, a mounting plane 1266 is arranged at the joint of the gallbladder side wall 1262 and the gallbladder top 1264, and then the required joint 7 is processed or mounted at the position of the mounting plane 1266, thereby improving the stability of the arrangement of the joint 7 and the stability of the connection of the joint 7 with the water tank assembly 4 or the connecting pipe 8.

[0149] In any of the above embodiments, as shown in Figure 10 , the box body 12 comprises an inner tank 126, and the inner tank 126 surrounds the cooking cavity 16, and the joint 7 comprises a water guide protrusion 72 arranged on the inner wall of the inner tank 126 and a connecting channel 74 penetrating through the inner tank 126 and the water guide protrusion 72, the inlet end of the connecting channel 74 is connected with the water tank assembly 4, and the outlet end of the connecting channel 74 is arranged corresponding to the water receiving box 3, and the water at the outlet end of the connecting channel 74 can flow into the water receiving box 3.

[0150] In this embodiment, the box body 12 comprises an inner tank 126, and the inner tank 126 is used to form the cooking cavity 16. At the same time, in order to form a water guide structure at the inner wall of the cooking cavity 16 to avoid water flowing along the inner wall of the cooking cavity 16, a water guide protrusion 72 is arranged on the inner side of the inner tank 126, and a connecting channel 74 penetrating through the inner tank 126 and the water guide protrusion 72 is processed on the inner tank 126, so that a joint 7 structure is formed through the water guide protrusion 72 and the connecting channel 74. Since the water guide protrusion 72 is directly formed on the inner tank 126, the connection between the water guide protrusion 72 and the inner tank 126 is more reliable, and the position is more stable, so that the outlet end can be prevented from shaking.

[0151] In any of the above embodiments, as shown in Figure 4 and Figure 8 , the joint 7 is a pipe 76 mounted on the box body 12, and the pipe 76 is detachably connected or integrally connected with the box body 12, and the box body 12 comprises an inner tank 126, and the inner tank 126 surrounds the cooking cavity 16, and the outlet end of the pipe 76 is located inside the cooking cavity 16 and protrudes from the inner wall of the inner tank 126.

[0152] In this embodiment, the joint 7 is an additional pipe 76, so that the water guide protrusion 72 does not need to be machined on the inner container 126, thus simplifying the structure of the inner container 126 and reducing the machining cost of the inner container 126. Meanwhile, in order to ensure that the water discharged by the pipe 76 does not flow along the inner wall of the cooking cavity 16, the outlet end of the pipe 76 can be arranged on the inner wall of the cooking cavity 16 and protrude from the inner wall of the cooking cavity 16 by a length, so that the water can be accurately guided into the water collecting box 3 by the water guide of the pipe 76, and the water is prevented from flowing to other positions along the cooking cavity 16.

[0153] In any of the above embodiments, optionally, the pipe 76 is a metal piece.

[0154] In this embodiment, the pipe 76 is arranged as a metal piece, so that the high-temperature resistance of the pipe 76 can be improved. Since the pipe 76 needs to be partially inserted into the cooking cavity 16, the temperature in the cooking cavity 16 is relatively high. Therefore, the pipe 76 arranged as a metal piece can withstand the high temperature in the cooking cavity 16 for a long time without deformation, so that the service life of the pipe 76 can be improved, and the pipe 76 can also be prevented from releasing toxic substances due to melting deformation.

[0155] Optionally, the joint 7 is in a straight line structure, or the joint 7 is in a curved structure.

[0156] In this embodiment, the shape of the joint 7 can be reasonably arranged according to the position of the joint 7 and the position of the water collecting box 3. For example, the joint 7 can be arranged in a straight line, so that the water flow can flow more smoothly, and the consumption of the joint 7 can be minimized. Of course, when the joint 7 and the water collecting box 3 are far away from each other, a bending structure can be arranged on the joint 7 according to the actual situation to form a curved joint 7.

[0157] In any of the above embodiments, optionally, the connecting pipe 8 includes a hose 82, at least a portion of the hose 82 being mounted on the box body 12; or the connecting pipe 8 includes a channel structure formed on the box body 12.

[0158] In this embodiment, the connecting pipe 8 is a hose 82, so that the installation of the connecting pipe 8 is more flexible. Of course, the connecting pipe 8 can also be a channel structure formed on the shell of the box body 12, so that an additional pipe does not need to be arranged separately, thereby reducing the number of parts of the product.

[0159] In any of the above embodiments, optionally, the water collecting box 3 is detachably mounted in the box body 12.

[0160] In this embodiment, when the food does not need to be watered, the water receiving box 3 and the water tank assembly 4 can be detached from the box body 12 to avoid dry burning of the water receiving box 3. The water receiving box 3 can also be designed to be non-detachable, and in this case, the water in the water tank assembly 4 can be poured out when the food does not need to be watered.

[0161] In this embodiment, a first support 5 is installed in the box body 12, which is installed on the inner wall of the box body 12, for example, the first support 5 can be installed on the box body 12 by screwing or buckle connection, etc. The water receiving box 3 is installed on the first support 5, and the first support 5 can make the installation and removal of the water receiving box 3 more convenient.

[0162] In any of the above embodiments, optionally, as shown in Figure 2 、 Figure 6 、 Figure 7 and Figure 8 , the steam cooking appliance further comprises: two second supports 6, respectively arranged on two inner side walls of the box body 12 arranged opposite along the width direction, for supporting the food carrying member 10; wherein the first support 5 is installed on the top of one of the second supports 6.

[0163] In this embodiment, the second support 6 can be used to support the food carrying member 10 such as the baking tray 102. Among them, the first support 5 is installed on the top of the second support 6, that is, this structure directly installs the water receiving box 3 and the first support 5 on the support support of the food carrying member 10 such as the baking tray 102, so that the existing support in the box body 12 can be used to install the water receiving box 3, so that the structure of the whole product can be simplified, and the cost of the whole product can be reduced.

[0164] Further, the second support 6 is provided with a plurality of support portions 62, and the plurality of support portions 62 are arranged at intervals along the height direction of the box body 12, and the first support 5 and the second support 6 can install the food carrying member 10 at a plurality of height positions through the plurality of support portions 62. This kind of setting makes the installation height of the food carrying member 10 adjustable, and at the same time, the two second supports 6 can support and install a plurality of food carrying members 10 at the same time.

[0165] In any of the above embodiments, optionally, as shown in Figure 5 and Figure 6 , the water receiving box 3 is provided with a flange 32 at the notch, and the flange 32 extends from the inner side of the notch to the outer side; the first support 5 comprises a support bar 52, and the water receiving box 3 is installed on the support bar 52 through the flange 32.

[0166] In this embodiment, the positioning and installation of the water receiving box 3 can be achieved by the flange 32. In order to ensure the installation of the water receiving box 3 by the first support 5, a support strip 52 is arranged on the first support 5, which can be supported on the bottom of the flange 32 to support the water receiving box 3. In order to ensure the installation stability of the water receiving box 3, the shape of the support strip 52 can be matched with the outer wall of the water receiving box 3, and the length of the support strip 52 can be arranged in reference to the outer circumference of the water receiving box 3.

[0167] For example, when the water receiving box 3 is in a long strip shape, the support strip 52 can cover three faces of the water receiving box 3 to ensure the support stability of the water receiving box 3 by the support strip 52. When the water receiving box 3 is in a circular structure or a quasi-circular structure, the support strip 52 can cover more than one fourth of the circumference of the water receiving box 3.

[0168] In any of the above embodiments, optionally, as shown in Figure 5 、 Figure 6 and Figure 8 , the water receiving box 3 is in a long strip shape and is arranged along the front-rear direction of the cabinet 12. The water receiving box 3 in a long strip shape can reduce the width occupied by the water receiving box 3, thereby improving the space utilization of the cooking cavity 16.

[0169] Optionally, the water receiving box 3 is in a long strip shape, and the support strip 52 supports three faces of the water receiving box 3. In this way, the installation stability of the water receiving box 3 can be ensured.

[0170] In any of the above embodiments, optionally, as shown in Figure 1 , the water tank assembly 4 is installed on the cabinet 12. By installing the water tank assembly 4 on the cabinet 12, the water tank assembly 4 and the cabinet 12 can form an integral whole, thereby facilitating the pipe connection operation between the water tank assembly 4 and the joint 7. At the same time, the whole machine is more compact. Of course, in other schemes, the water tank can also be arranged independently of the cabinet 12.

[0171] Further, as shown in Figure 1 , the water tank assembly 4 is installed on the top of the cabinet 12, so that the water tank assembly 4 is arranged higher, thereby being more convenient for gravity drainage.

[0172] In this structure, when the food material does not need to be supplemented with water, the water tank assembly 4 can not be filled with water.

[0173] Optionally, the heating device 2 comprises a heating pipe 22 installed on the top of the cabinet 12.

[0174] In this embodiment, the heating device 2 can be infrared heating, thermal radiation heating, electromagnetic heating or the like. For example, a heating tube 22 can be installed on the top of the cooking cavity 16 to heat the food. At this time, the water tank assembly 4 can be installed on the outer top of the cabinet 12, and the water receiving groove 34 is arranged close to the top of the cooking cavity 16, so that the water in the water receiving groove 34 can be heated into water vapor by the heating tube 22.

[0175] In any of the above embodiments, optionally, the steam cooking appliance includes an oven and / or a steamer. Of course, the steam cooking appliance can also be other devices that require a water tank.

[0176] In the above embodiments, optionally, as shown in Figure 12 The outer side wall of the water tank shell 40 is provided with a plurality of water level scale structures 406, which are arranged at intervals along the first direction.

[0177] In this embodiment, the water level scale structure 406 is used to indicate the water level scale, so that the user can know the amount of water in the water tank shell 40, and avoid the situation that the user adds too much water. Especially, in the case that the air hole is arranged close to the water inlet and outlet of the water tank shell 40, the situation that the water in the water tank exceeds the air hole and causes the water to leak from the air hole can be avoided.

[0178] In the following, the steam oven / steamer is taken as an example to further introduce the water tank turning steam cooking appliance in the present application.

[0179] In related schemes, the steam oven / steamer is generally equipped with a water tank for machine water; the conventional water tank is rectangular, single outlet structure, which can meet the needs of water transmission and cleaning. In related schemes, the cylindrical water tank is also single outlet structure, which can meet the water transmission, but due to the appearance and mold design, it is difficult to clean the inside, and there is a large cleaning dead angle.

[0180] The present embodiment mainly designs a cylindrical detachable water tank assembly, which is easy to disassemble, small in size, and convenient for water adding and cleaning. The water tank assembly is provided with a front part / upper part detachable opening, the upper part opening is used for quick water adding in the middle, and the front part opening can be disassembled to use tools to extend into the inside for omnidirectional cleaning. The cylindrical detachable water tank assembly can solve the problems of cleaning and water adding in the middle, and the large size of the water tank, which is not convenient for installation, and optimize the user experience.

[0181] In the description of the present application, the terms "connection", "installation", "fixation" and the like should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0182] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0183] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water tank arrangement, characterized in that The water tank device is used for a steam cooking appliance, and comprises: a mounting shell comprising a mounting cavity, one end of the mounting cavity being provided with a mounting opening; a water tank assembly comprising a water tank shell and a cover, the water tank shell comprising a water storage cavity and a first water inlet / outlet opening in communication with the water storage cavity, the first water inlet / outlet opening being provided at one end of the water tank shell, and the cover being detachably mounted on the water tank shell to open or close the first water inlet / outlet opening, the water tank shell further being provided with a second water inlet / outlet opening; wherein the water tank assembly is detachably mounted on the mounting shell, and is movable along a first direction between a first position and a second position when the water tank assembly is mounted on the mounting shell, the water tank assembly being located in the mounting cavity when the water tank assembly is in the first position, and the second water inlet / outlet opening being located outside the mounting cavity when the water tank assembly is in the second position.

2. The water tank arrangement of claim 1, characterized in that The first water inlet / outlet opening is provided at one end of the water tank shell along the first direction, and the cover is mounted at the end of one end of the water tank shell along the first direction.

3. The water tank device according to claim 1, wherein: when the water tank assembly is in the first position, the cover is arranged close to the mounting opening; the second water inlet / outlet opening is arranged on a side wall of one end of the mounting shell close to the cover, and when the water tank assembly is in the second position, the cover is located outside the mounting cavity.

4. The water tank apparatus according to claim 1, characterized by The water tank assembly further comprises: a sealing ring arranged between the water tank shell and the cover to seal a gap between the water tank shell and the cover.

5. The water tank arrangement of claim 4, wherein, The sealing ring comprises: an inner ring and an outer ring, one end of the inner ring and one end of the outer ring being connected to each other, the other end of the outer ring being arranged outside the inner ring along a circumferential direction of the inner ring, and the other end of the outer ring and the inner ring being arranged with a gap along a radial direction of the sealing ring.

6. The water tank apparatus according to claim 1, characterized by The water tank shell comprises a first arc-shaped surface arranged along a circumferential direction of the water tank shell, two ends of the first arc-shaped surface along the circumferential direction of the water tank shell being connected by a first outer side wall surface, the first outer side wall surface comprising a first flat surface and a second arc-shaped surface, the second water inlet / outlet opening being arranged on the first flat surface, and the second arc-shaped surface being located on a side of the first flat surface close to the first water inlet / outlet opening along the first direction.

7. The water tank apparatus according to claim 1, characterized by The second water inlet / outlet opening comprises one of an elongated hole, a circular hole and a polygonal hole.

8. The water tank apparatus according to claim 1, characterized by The water tank shell comprises two oppositely arranged second outer side wall surfaces, one of a guide rib and a guide groove being arranged on each of the second outer side wall surfaces along the first direction, the other of the guide rib and the guide groove being arranged on the mounting shell, and the water tank assembly being movably mounted on the mounting shell through the guide rib and the guide groove.

9. The water tank device according to any one of claims 1 to 8, wherein: one end of the mounting shell away from the cover is provided with a water outlet channel. The installation shell comprises a water storage groove and a water outlet, the water storage groove is arranged corresponding to the water outlet channel and used for receiving water from the water outlet channel; The steam cooking appliance comprises a water receiving box in communication with the water outlet, and water in the water storage groove can be discharged from the water outlet into the water receiving box.

10. The water tank arrangement of claim 9, wherein, The inner bottom wall of the water storage groove gradually moves away from the center of the installation shell from a position far away from the water outlet to a position close to the water outlet.

11. The water tank arrangement of claim 9, wherein, The water tank assembly further comprises: A valve assembly is installed at the water outlet channel and can move between a first position and a second position to open or close the water outlet channel; The installation shell comprises a push rod, which is used to be inserted into the water outlet channel when the water tank assembly is installed in the installation cavity and to push the valve assembly to move from the first position to the second position to open the water outlet channel.

12. The water tank arrangement of claim 11, characterized in that Further comprising: A first limiting piece is installed on the installation shell; A second limiting piece is arranged on the water tank assembly; When the water tank assembly is located in the installation cavity, the first limiting piece and the second limiting piece limit each other to lock the water tank assembly; When the water tank assembly is located in the installation cavity, pressing the water tank assembly into the installation cavity can release the limiting between the first limiting piece and the second limiting piece to unlock the water tank assembly; An elastic piece is installed in the water outlet channel and used to push a part of the water tank assembly out of the installation shell when the water tank assembly is in an unlocked state and to move the valve assembly from the second position to the first position to close the water outlet channel.

13. A steam cooking appliance, characterized in that, The water tank device as claimed in any one of claims 1 to 12.

14. The steam cooking appliance of claim 13, wherein, Further comprising: A box body comprising a cooking cavity and a cooking inlet, the cooking inlet being in communication with the cooking cavity, the installation shell being installed on the box body, and the water tank assembly being detachably installed on the box body; A door body installed on the box body to open or close the cooking inlet; A heating device installed on the box body and used to heat food materials in the cooking cavity; A water receiving groove installed in the box body and in communication with the water tank assembly, water in the water receiving groove being able to be heated into steam by the heating device.

15. The steam cooking appliance according to claim 14, wherein The installation shell is installed on the box body, the installation port is located at a first end of the box body along the first direction, the first end of the box body along the first direction is provided with the cooking inlet and an avoiding port avoiding the installation port, the door body is installed at the first end of the box body, and the water tank assembly can be inserted and installed on the installation shell from the installation port along the first direction.

16. The steam cooking appliance according to any one of claims 13 to 15, characterized in that, The steam cooking appliance comprises an oven and / or a steam oven.

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