CN108720563B

CN108720563B - Steam valve structure and cooking appliance comprising same

Info

Publication number: CN108720563B
Application number: CN201810903795.5A
Authority: CN
Inventors: 陈冬冬; 李锦彬; 高塬贵; 潘泽勇; 李易峰; 程建建; 尹志雄; 黎文彬; 李佳宏; 陈亮
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2018-08-09
Filing date: 2018-08-09
Publication date: 2023-08-15
Anticipated expiration: 2038-08-09
Also published as: CN108720563A

Abstract

The application discloses a steam valve structure and a cooking appliance comprising the same. The steam valve structure is arranged on a cover body of the cooking appliance and is installed on the cover body in a sliding mode, the steam valve structure comprises a shell, a cavity for steam circulation is formed in the shell, a second protruding structure is arranged on the shell at the front end of the steam valve structure in the installation direction and extends downwards, and in the steam valve dismounting process, the second protruding structure plays a supporting role on the steam valve structure, so that the shell is prevented from being contacted with a sealing structure on the cover body. According to the steam valve structure, the second protruding structure is arranged, so that the steam valve cannot be contacted with the sealing structure on the cover body in the installation process, and the installation is smoother. Can sink after the installation and then compress tightly on the seal structure on the lid, improve the reliability of seal contact.

Description

Steam valve structure and cooking appliance comprising same

Technical Field

The application relates to the technical field related to cooking appliances, in particular to a steam valve structure and a cooking appliance comprising the steam valve structure.

Background

The disassembly direction of the external steam valve of the electric cooker on the market at present is generally divided into an up-down direction or a front-back direction, and the steam valve disassembled in the up-down direction is completely exposed outside the machine body, so that the appearance is not concise and exquisite enough, and the high-end steam valve adopts a side-pumping steam valve with the disassembly direction being the front-back direction.

The motion direction of the existing side-pumping type steam valve is generally the same as the sealing direction of the steam port, namely the steam valve air inlet is positioned on the side surface of the steam valve, and the design is unfavorable for the backflow of distilled water in the steam valve; meanwhile, the steam valve and the periphery are matched to be in an inelastic design, so that when the forming size of the part fluctuates, the sealing stability is poor, and the disassembly and assembly are free of handfeel or poor in handfeel.

Disclosure of Invention

In view of the above, an object of the present application is to provide a steam valve structure capable of improving sealing reliability and a steaming and boiling appliance including the same.

In a first aspect, there is provided a steam valve structure provided on a lid of a cooking vessel, the steam valve structure being slidably mounted to the lid, the steam valve structure comprising a housing defining a cavity therein for the flow of steam,

the housing at the front end in the steam valve structure mounting direction is provided with a second projection structure extending downward,

in the steam valve disassembly and assembly process, the second protruding structure plays a supporting role on the steam valve structure, and the contact between the shell and the sealing structure on the cover body is avoided.

Preferably, a first projection structure is provided on the housing near the rear end in the steam valve structure mounting direction, the first projection structure extending upward,

after the steam valve structure is installed, the first protrusion contacts with the cover body to enable the shell to be pressed on the sealing structure.

Preferably, the housing includes an upper cover and a lower cover, the cavity being formed between the upper cover and the lower cover,

the upper cover is configured to include an upper cover bottom plate and an upper cover side plate configured to be formed in a structure along a circumferential direction of the upper cover bottom plate at a first side of the upper cover bottom plate; and/or the number of the groups of groups,

the lower cover is configured to include a lower cover bottom plate and a lower cover side plate configured to be formed in a circumferential direction of the lower cover bottom plate at a first side of the lower cover bottom plate.

Preferably, the first projection arrangement is provided on the second side of the upper cover bottom plate and extends from the upper cover bottom plate in a direction away from the upper cover bottom plate, and/or,

the second protruding structure is arranged on one side of the upper cover side plate far away from the upper cover bottom plate and extends from the upper cover side plate towards the direction far away from the upper cover bottom plate,

the first protruding structure and the second protruding structure are staggered in the installation direction of the steam valve structure.

Preferably, the upper cover side plate is provided with a first connecting structure and a second connecting structure connected with the lower cover, and/or,

and a third connecting structure and a fourth connecting structure connected with the upper cover are arranged on the lower cover side plate.

Preferably, the first connecting structure and the second connecting structure are formed on two opposite parts of the upper cover side plate,

the first connecting structure comprises a connecting seat formed on the inner side of the upper cover side plate, and a mounting groove is formed on the connecting seat; and/or the number of the groups of groups,

the second connection structure includes a through hole formed on the upper cover side plate.

Preferably, the third connecting structure and the fourth connecting structure are formed on two opposite parts on the lower cover side plate,

the third connecting structure comprises a connecting shaft formed on the lower cover side plate, and the connecting shaft can be rotatably connected into the mounting groove; and/or the number of the groups of groups,

the fourth connection structure comprises a clamping block structure, and the clamping block structure can be clamped into the through hole of the second connection structure.

Preferably, a sealing groove for installing a sealing element is arranged on the first side surface of the upper cover bottom plate of the upper cover, a steam exhaust area is surrounded on the upper cover bottom plate by the sealing groove, and steam exhaust holes are formed in the steam exhaust area.

Preferably, the steam inlet is formed on the lower cover bottom plate, and a sealing rib is formed on the second side surface of the lower cover bottom plate around the steam inlet, and the sealing rib comprises a protrusion formed on the lower cover bottom plate.

Preferably, the steam valve structure further includes a mounting structure for making connection with the cover, the mounting structure being formed on the housing.

Preferably, the mounting structure comprises a slider, a limiting seat and a second elastic member, a through hole for a part of the slider to pass through is formed in the upper cover side plate, the limiting seat is connected to the upper cover bottom plate, the slider is slidably arranged between the limiting seat and the upper cover side plate, the second elastic member is limited between the limiting seat and the slider, and a part of the slider can extend out of the upper cover side plate under the action of the second elastic member.

In a second aspect, a cooking vessel is provided, comprising a pot body and a cover body, wherein the cover body is provided with the steam valve structure.

Preferably, the cover body includes a cover body, a steam valve mounting part is formed on the cover body, and the steam valve mounting part includes:

the receiving groove is used for receiving the steam valve structure,

and the crossbeam is arranged opposite to the accommodating groove, and when the steam valve structure is installed in place, the first protruding structure is contacted with the crossbeam.

Preferably, a sinking groove is arranged on the bottom wall of the accommodating groove, and the second protruding structure is positioned in the sinking groove when the steam valve structure is installed in place.

Preferably, the cover body further comprises a cover plate, the cover plate is connected to the cover body, a pressing structure is arranged on the cover body, and the pressing structure can provide pressing force for the steam valve structure, so that the second protruding structure can slide into the sinking groove.

Preferably, the pressing structure comprises a pressing block, a pressing elastic piece and a fixing structure, wherein a mounting hole is formed in the cover plate, the pressing block at least partially penetrates through the mounting hole, the fixing structure is connected to the mounting hole and limits the pressing elastic piece between the pressing block and the fixing structure, and the pressing block is in contact with the steam valve structure to provide pressing force.

In a third aspect, a cooking vessel is provided, comprising a pot and a cover, wherein the cover is provided with the steam valve structure.

the steam valve structure comprises a containing groove, wherein the containing groove is used for containing the steam valve structure, a guide rail is arranged on the side wall of the containing groove, the guide rail comprises a step surface, the step surface comprises a first guide surface and a second guide surface which are sequentially arranged in the installation direction of the steam valve structure, the first guide surface can be abutted to the sliding block in the installation process of the steam valve structure, and a gap is reserved between the second guide surface and the free end of the sliding block.

According to the steam valve structure, the second protruding structure is arranged, so that the steam valve cannot be contacted with the sealing structure on the cover body in the installation process, and the installation is smoother. Can sink after the installation and then compress tightly on the seal structure on the lid, improve the reliability of seal contact.

Drawings

The above and other objects, features and advantages of the present application will become more apparent from the following description of embodiments of the present application with reference to the accompanying drawings, in which:

FIGS. 1 and 2 show schematic diagrams of exploded structures of steam valve structures provided by the application;

FIG. 3 is a schematic view showing a state in the process of assembling the lower cover and the upper cover;

FIG. 4 shows a schematic cross-sectional view of a steam valve structure;

FIGS. 5 and 6 are schematic longitudinal cross-sectional views showing the mounting of the steam valve structure to the cover;

FIG. 7 shows a schematic cross-sectional view of a steam valve structure mounted to a cover in a lateral direction;

fig. 8 shows a schematic structural view of the cover body;

fig. 9 and 10 show schematic structural views of the sealing structure;

fig. 11 shows an exploded structural schematic view of the cover plate assembly.

Detailed Description

The present application is described below based on examples, but the present application is not limited to only these examples. It will be appreciated by those of ordinary skill in the art that the drawings provided herein are for illustrative purposes and that the drawings are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

Note that: the upper, lower and other orientations mentioned in the present application are all orientations of the steam valve structure when the steam valve structure is mounted on the steaming appliance, and the orientations are irrelevant to the relative positional relationship shown in the drawings when the steaming appliance is in a use state.

The steam valve structure provided by the application is suitable for cooking appliances with pressure greater than atmospheric pressure in cooking such as micro-pressure electric rice cooker and electric pressure cooker, and is arranged on a cover body of the cooking appliance for discharging steam in the cooker to avoid overhigh pressure in the cooker.

As shown in fig. 1, 2, 3 and 4, the steam valve structure 10 provided by the present application comprises a housing, wherein a cavity through which steam flows is formed in the housing, the housing comprises an upper cover 100 and a lower cover 200, the lower cover 200 is detachably mounted on the upper cover 100, and a cavity is formed between the upper cover 100 and the lower cover 200, a steam inlet 211 is formed on the housing, steam can enter the cavity through the steam inlet 211 and can be discharged from the cavity, preferably the steam inlet 211 is formed at the bottom of the housing, so that steam enters the cavity from the lower side of the steam valve structure 10, and in this embodiment, the steam inlet 211 is formed on the lower cover 200 (described in detail below). A sealing ring 300 is disposed between the upper cover 100 and the lower cover 200, and the sealing ring 300 makes the upper cover 100 and the lower cover 200 form sealing contact, so as to avoid the phenomenon of air leakage at the contact position of the upper cover 100 and the lower cover 200. The steam valve structure 10 is mounted to the cover in a sliding manner.

The upper cover 100 is configured to include an upper cover bottom plate 110 and an upper cover side plate 120, and the upper cover side plate 120 is formed in a structure along a circumferential direction of the upper cover bottom plate 110 at a first side of the upper cover bottom plate 110, specifically, the upper cover side plate 120 may be configured in a ring-shaped structure closed along the circumferential direction of the upper cover bottom plate 110, or the upper cover side plate 120 may also be configured in a structure with a notch formed in the ring-shaped structure. Preferably, the outer edge of the upper cover bottom plate 110 has a square structure, and the upper cover side plate 120 is provided with a structure that is mounted in cooperation with the lower cover 200. Preferably, the structure to be cooperatively mounted with the lower cover 200 includes a first connection structure 111 and a second connection structure 112 formed on the upper cover side plate 120, the first connection structure 121 and the second connection structure 122 are formed on two opposite parts of the upper cover side plate 120, in this embodiment, since the upper cover bottom plate 110 is a square structure, the first connection structure 121 and the first connection structure 121 are disposed on two parts of the upper cover side plate 120 parallel to each other, preferably, the upper cover side plate 120 where the first connection structure 121 is disposed is located at the outer side of the cover body after the steam valve structure 10 is mounted, the second connection structure 122 is located at the inner side of the cover body after the steam valve structure 10 is mounted, and the steam valve structure 10 is slidably mounted along a direction perpendicular to a plane where the first connection structure 121 and the second connection structure 122 are disposed.

Specifically, the first connection structure 121 includes a connection seat 1211 formed at an inner side of the upper cover side plate 120, and preferably, a connection rib is provided between the connection seat 1211 and the upper cover side plate 120, and the connection rib is connected to both the connection seat 1211 and the upper cover side plate 120 to improve the reliability of the installation of the connection seat 1211. The connecting seat 1211 has a mounting slot 1212 formed therein, and the mounting slot 1212 is adapted to mate with a corresponding structure on the lower cover 200 to form a rotational connection, preferably a hinge. For convenience and reliability of connection with the lower cover 200, a gap exists between the connection seat 1211 and the upper cover bottom plate 110, the gap is used for the connection structure on the lower cover 200 to pass through, and the opening direction of the installation groove 1212 faces the upper cover bottom plate 110. Preferably, the first connecting structure 121 is provided with a plurality of first connecting structures 121, the distance between the plurality of first connecting structures 121 and the upper cover bottom plate 110 is the same, and a plurality of first connecting structures 121 are arranged at a certain distance, in this embodiment, the first connecting structure 121 is provided with two, preferably, in order to facilitate the assembly and disassembly of the steam valve structure 10, a holding part 124 for being held by an operator during the assembly and disassembly is provided on the upper cover side plate 120, and the holding part 124 is preferably configured as a notch formed on the upper cover side plate 120, and further, the holding part 124 is located between the two first connecting structures 121. The second connection structure 122 includes a through hole formed on the upper cover side plate 120, and the through hole forms a clamping connection with the related structure on the lower cover 200. The first connection structure 121 and the second connection structure 122 cooperate with related structures on the lower cover 200, so that the lower cover 200 is detachably connected to the upper cover 100 by means of a clamping connection or the like.

A seal groove 111 is provided in the upper cover bottom plate 110 of the upper cover 100, the seal groove 111 encloses a steam exhaust area on the upper cover bottom plate 110, and steam exhaust holes 112 are formed in the steam exhaust area. The seal ring 300 is installed in the seal groove 111, the lower cover 200 can press the seal ring 300 in the seal groove 111, the lower cover 200 and the steam exhaust area form a cavity for steam circulation, and steam is exhausted through the steam exhaust hole 112.

The lower cover 200 is configured to include a lower cover bottom plate 210 and a lower cover side plate 220, the lower cover side plate 220 being formed in a structure along a circumferential direction of the lower cover bottom plate 210 at a first side of the lower cover bottom plate 210, in particular, the lower cover side plate 220 may be configured to be a ring-shaped structure closed along the circumferential direction of the lower cover bottom plate 210, or the lower cover side plate 220 may be also configured to be a structure having a notch formed on the ring-shaped structure. Preferably, the outer edge of the lower cover bottom plate 210 has a square structure, the lower cover side plate 220 corresponds to the sealing groove 111 on the upper cover 100, and when the lower cover side plate 220 contacts the sealing ring 300 and applies pressure to the sealing ring 300.

The lower cover side plate 220 is provided with a third connecting structure 221 and a fourth connecting structure 222, the three connecting parts 221 are cooperatively connected with the first connecting structure 121 on the upper cover 100, preferably, the third connecting structure 221 includes a connecting shaft 2211 and connecting parts 2212 connecting the connecting shaft to the lower cover side plate 220, two connecting parts 2212 are arranged at a certain distance, and the two connecting parts can enable the connecting shaft 2211 to be connected to the first connecting structure 121, namely, the distance between the two connecting parts 2212 is larger than the width of the connecting seat 1211. The connection shaft 2211 is disposed between the two connection parts 2212, and preferably, the connection shaft 2211 is disposed parallel to the lower cover side plate 220, and both ends of the connection shaft 2211 are connected to one connection part 2212, respectively. The number and positions of the third connecting structures 221 correspond to those of the first connecting structures 121, the first connecting structures 121 are connected with the third connecting structures 221, and the connecting shaft 2211 is rotatably disposed in the mounting groove 1212.

The fourth connection structure 222 is in clamping connection with the second connection structure 122. The fourth connecting structure 222 includes a clamping block structure, which can be elastically deformed or displaced under an external force, so that the clamping block structure can be clamped into the second connecting structure 122. Preferably, the fourth connection structure 222 includes a mounting seat 2221 formed on the lower cover side plate 220, a clamping block 2222 movably disposed in the mounting seat 2221, a connection structure 2223 for restricting the clamping block 2222 in the mounting seat 2221, and a first elastic member 2224 for providing an elastic force to the clamping block 2222. The first elastic member 2224 provides the cartridge 2222 with an elastic force to be away from the lower cover side plate 220, and preferably, the first elastic member 2224 is a spring, and at least a portion of the structure of the cartridge 222 can be inserted into the second connection structure 122. Preferably, a notch 123 is provided in a portion of the upper cover side plate 120 where the second connection structure 122 is provided, and a pressure can be applied to the clamping block 2222 through the notch 123, so that a portion of the clamping block 2222 located in the second connection structure 122 slides out.

Preferably, when the upper cover 100 is assembled with the lower cover 200, the sealing ring 300 is first placed in the sealing groove 111, and then the first connection structure 121 is hinged with the third connection structure 221. And then the lower cover 200 is rotated to press the clamping block 2222, so that the lower cover 200 is covered on the upper cover 100, the upper cover side plate 220 is pressed on the sealing ring 300, at this time, the clamping block 2222 is opposite to the second connecting structure 122, and the clamping block 2222 and the second connecting structure 122 can be clamped by loosening the clamping block 2222. In the disassembly, the locking block 2222 is pressed and the lower cover 200 is rotated, and then the connection shaft 2211 of the third connection structure 221 is separated from the installation groove 1212 of the first connection structure 121.

The lower cover bottom plate 210 of the lower cover 200 is provided with a steam inlet 211, and the steam inlet 211 enables steam to enter the cavity in front of the lower cover 200 and the upper cover 100. The surface of the lower cover bottom plate 210, which is positioned outside the cavity, is provided with a sealing rib 212, and the sealing rib 212 forms a closed annular structure around the steam inlet 211. The sealing rib 212 is in sealing contact with the matched surface on the cover body, so that air leakage is avoided.

The upper cover 100 is provided with a mounting structure 130, and the mounting structure 130 is used for being connected with a cover body of the cooking vessel. The mounting structure 130 includes a slider 131, a limiting seat 132, and a second elastic member 133, the upper cover side plate 120 is provided with a through hole 125 through which a part of the structure of the slider 131 passes, the limiting seat 132 is connected to the upper cover bottom plate 110, and limits the second elastic member 133 between the limiting seat 132 and the slider 131, and a part of the structure of the slider 131 can extend to the outer side of the upper cover side plate 120 under the action of the second elastic member 133. The limiting seat 132 is connected to the upper cover bottom plate 110 through a connecting piece, and encloses an accommodating space with the upper cover bottom plate 110 and the upper cover side plate 120, and the sliding block 131 and the second elastic piece 133 are limited in the accommodating space. Preferably, the mounting structure 130 is provided in two opposite portions on the upper cover side plate 120, and the upper cover side plate 120 provided with the mounting structure 130 is perpendicular to the portion where the first and second connection structures 121 and 122 are formed.

Preferably, the upper cover bottom plate 110 is provided with a first protruding structure 113, the first protruding structure 113 is formed towards the side far away from the lower cover 200, and the first protruding structure 113 is matched with a related structure on the cover body of the cooking vessel, so that the lower cover 200 can be pressed on a matched and installed surface of the cover body. Further, the upper cover side plate 120 is further provided with a second protruding structure 126, the second protruding structure 126 is formed on the plane where the upper cover side plate 120 is located in a direction away from the upper cover bottom plate 110, and the height of the second protruding structure 126 in the protruding direction of the second protruding structure 126 is higher than the height of the lower cover 200. Preferably, the second protrusion structure 126 and the first protrusion structure 113 are disposed to be offset from each other in the sliding direction of the steam valve structure 10, and in this embodiment, the second protrusion structure 126 is disposed at a position away from the first connection structure 121.

The application also provides a cooking appliance, which comprises a pot body and a cover body, wherein the steam valve structure 10 is arranged on the cover body. As shown in fig. 5, 6 and 8, the cover body 40 is wrapped around the cover body 40, and a steam valve mounting portion is formed on the cover body 40, and includes a receiving groove 410, and the steam valve structure 10 is slidably mounted in the receiving groove 410. The cover body 40 is provided with a cross beam 411, the cross beam 411 is parallel to the bottom wall of the accommodating groove 410, and after the steam valve structure 10 is installed, the first protruding structure 113 contacts with the cross beam 411. The bottom wall of the accommodating groove 410 is provided with a steam port 412, and the steam port 412 is opposite to and communicates with the air inlet 211 of the steam valve structure 10. The steam port 412 is provided with a sealing structure 60, as shown in fig. 9 and 10, a sealing surface 61 is formed on the sealing structure 60, the sealing surface 61 is an annular surface, the sealing surface 61 contacts with a sealing rib 212 on the steam valve structure 10 to realize sealing, a reinforcing rib 62 is arranged on the radial inner side of the sealing surface 61, the reinforcing rib 62 is formed along the whole circumferential direction of the sealing surface 61 and extends towards the inner side of the sealing surface 61, and preferably, the reinforcing rib 62 is obliquely arranged towards the side far away from the steam valve structure 10. The reinforcing ribs 62 are arranged to prevent the sealing surface 61 from being overturned after being pressed, and the tightness between the sealing surface and the sealing ribs 212 is affected.

Preferably, as shown in fig. 7 and 8, the side wall of the accommodating groove 410 is provided with a guide rail, the guide rail includes a stepped surface 414, the stepped surface 414 includes a first guide rail, 4141 and a second guide rail surface 4142 sequentially disposed in the installation direction of the steam valve structure 10, during the installation process of the steam valve structure 10, the first guide rail surface 4141 can abut against the slider 131, and a gap is provided between the second guide rail surface 4142 and the free end of the slider. When the steam valve structure 10 is mounted in the accommodating groove 410, the sliding block 131 contacts with the step surface 414, and the step surface 414 blocks the sliding block 131, so that the steam valve structure 10 cannot slide out of the accommodating groove 410. Further, the surface of the step surface 414 contacting with the slider 131 is an inclined surface, so that when the steam valve structure 10 is pulled by an external force, the inclined surface plays a guiding role on the slider 131, so that the slider 131 slides towards the inner side of the steam valve structure 10, and the steam valve structure 10 can slide out from the accommodating groove 410.

Further, a sinking groove 413 is further disposed in the accommodating groove 410, and the sinking groove 413 is disposed at a position near the inner side of the cover body 40. When the steam valve structure 10 is installed in the accommodating groove 410, the second protrusion structure 126 on the upper cover 100 slides into the sinking groove 413, so that the steam valve structure 10 is sunk and is pressed to be in sealing contact with the sealing structure 60 at the steam port 412.

As shown in fig. 11, preferably, the cover further includes a cover plate 50, and the cover plate 50 is disposed on the cover body 40. The cover plate 50 is provided with a pressing mechanism 520, and the pressing mechanism 520 can provide pressure for the steam valve structure 10, so that the steam valve structure can sink and press on the sealing structure 60 at the steam port 412 when being installed. The pressing structure comprises a pressing block 521, a pressing elastic member 522 and a fixing structure 523, wherein the cover plate 50 is provided with a mounting hole 510, the pressing block 521 can partially pass through the mounting hole 510, and the fixing structure 523 is connected to the mounting hole 510 and limits the pressing elastic member 522 between the pressing block 521 and the fixing structure 523. The pressing elastic member 522 provides an elastic force to make the pressing block 521 contact with the upper cover 100 of the steam valve structure 10 and provide a pressure thereto so that the second protrusion structure 126 can slide into the sinking groove 413 and sink the steam valve structure 10.

According to the steam valve structure, the first protruding structure and the second protruding structure are arranged, so that the steam valve can sink after being installed, and then the steam valve structure is tightly pressed on the steam structure on the cover body, and the reliability of sealing contact is improved. And through setting up mounting structure, make the steam valve structure more reliable with being connected of lid.

It is easy to understand by those skilled in the art that the above preferred embodiments can be freely combined and overlapped without conflict.

It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the application, are intended to be included within the scope of the appended claims.

Claims

1. A steam valve structure is arranged on a cover body of a cooking appliance, and is characterized in that the steam valve structure is arranged on the cover body in a sliding manner and comprises a shell, a cavity for steam circulation is formed in the shell,

2. The steam valve structure according to claim 1, wherein a first projection structure is provided on the housing near the rear end in the steam valve structure mounting direction, the first projection structure extending toward the upper side,

3. The steam valve structure as claimed in claim 2, wherein the housing includes an upper cover and a lower cover, the cavity being formed between the upper cover and the lower cover,

4. The steam valve structure as claimed in claim 3, wherein the first projection arrangement is provided on the second side of the upper cover bottom plate and extends from the upper cover bottom plate in a direction away from the upper cover bottom plate and/or,

5. A steam valve structure according to claim 3, wherein the upper cover side plate is provided with a first connecting structure and a second connecting structure which are connected with the lower cover, and/or,

6. The steam valve structure of claim 5, wherein the first connecting structure and the second connecting structure are formed on two opposite parts of the upper cover side plate,

7. The steam valve structure as set forth in claim 6, wherein the third connecting structure and the fourth connecting structure are formed on opposite portions of the lower cover side plate,

8. A steam valve structure according to claim 3, wherein a sealing groove for mounting a sealing member is provided on a first side surface of an upper cover bottom plate of the upper cover, the sealing groove encloses a steam discharge area on the upper cover bottom plate, and steam discharge holes are formed in the steam discharge area.

9. A steam valve structure as claimed in claim 3, characterized in that the lower cover bottom plate is provided with a steam inlet, and a sealing rib is formed on the second side surface of the lower cover bottom plate around the steam inlet, and the sealing rib comprises a protrusion formed on the lower cover bottom plate.

10. The steam valve structure of any one of claims 3-9, further comprising a mounting structure for effecting connection with the cover, the mounting structure being formed on the housing.

11. The steam valve structure according to claim 10, wherein the mounting structure includes a slider, a stopper seat and a second elastic member, the upper cover side plate is provided with a through hole through which a part of the structure of the slider passes, the stopper seat is connected to the upper cover bottom plate, the slider is slidably disposed between the stopper seat and the upper cover side plate, the second elastic member is restrained between the stopper seat and the slider, and a part of the structure of the slider can protrude to the outside of the upper cover side plate through the through hole under the action of the second elastic member.

12. A cooking vessel comprising a pot and a cover, characterized in that the cover is provided with a steam valve structure according to any one of claims 2-11.

13. The cooking appliance of claim 12, wherein the cover comprises a cover body having a steam valve mounting portion formed thereon, the steam valve mounting portion comprising:

the receiving groove is used for receiving the steam valve structure,

14. The cooking vessel according to claim 13, wherein a sink is provided in the bottom wall of the receiving tank, and the second projection is located in the sink when the steam valve structure is in place.

15. The cooking appliance of claim 14, wherein the cover further comprises a cover plate connected to the cover body, the cover being provided with a hold-down structure capable of providing a hold-down force to the steam valve structure to enable the second projection structure to slide into the sink.

16. The cooking appliance according to claim 15, wherein the pressing structure comprises a pressing block, a pressing elastic member and a fixing structure, wherein a mounting hole is provided on the cover plate, the pressing block can at least partially pass through the mounting hole, the fixing structure is connected to the mounting hole, the pressing elastic member is limited between the pressing block and the fixing structure, and the pressing block is contacted with the steam valve structure to provide a pressing force.

17. A cooking vessel comprising a pot and a cover, wherein the cover is provided with the steam valve structure of claim 11.

18. The cooking appliance of claim 17, wherein the cover comprises a cover body having a steam valve mounting portion formed thereon, the steam valve mounting portion comprising: