Kettle

Abstract

The kettle comprises a kettle body defining a kettle cavity and a heating disc assembly installed at the bottom of the kettle body, the heating disc assembly comprises a heating disc provided with a through hole, a water inlet valve is arranged in the through hole in a penetrating mode, and the water inlet valve comprises a valve cover located in the kettle cavity and a valve body abutting against the bottom of the heating disc. And the upper end of the valve body penetrates through the through hole, extends into the kettle cavity and is in threaded connection with the valve cover, so that the valve body and the valve cover jointly clamp the heating disc. The valve body penetrates through the heating disc to be in threaded connection with the valve cover in the kettle cavity, so that the valve body and the valve cover jointly clamp the heating disc while being locked, connection between the heating disc and the water inlet valve is tighter and more reliable, the sealing performance between the heating disc and the water inlet valve is improved, and the service life of the kettle is prolonged. And the valve body and the valve cover which are in threaded connection are more convenient to disassemble and assemble the water inlet valve, and when the water passing hole of the valve cover is blocked or other conditions needing to be cleaned occur, a user can easily disassemble the water inlet valve by rotating the valve cover, so that the user can clean the water inlet valve by himself / herself, and the use experience of the user is improved.

Description

Technical Field

[0001] The utility model belongs to the field of drinking water equipment, and in particular relates to a kettle. Background Art

[0002] At present, before boiling water, the existing electric kettle needs to be removed from the base and filled with water. In order to solve the problem of inconvenience in filling water, an electric kettle with bottom water filling has appeared on the market. The kettle is usually provided with a water inlet valve on the bottom heating plate to control whether water is taken into the kettle. However, because the valve body of the water inlet valve is passed through the heating plate, the valve cover of the water inlet valve is installed and fixed to the top of the valve body in a crimping manner, and the sealing between the valve cover and the heating plate is poor, so water leakage is easy to occur when the user uses the kettle. At the same time, when the through hole on the valve cover is blocked or needs to be cleaned, the crimping installation form makes it impossible to disassemble the valve cover and the valve body, and the user experience is poor. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a kettle to solve at least one of the above problems.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a kettle, comprising a kettle body forming a kettle cavity and a heating plate assembly installed at the bottom of the kettle body, the heating plate assembly comprising a heating plate provided with a through hole, a water inlet valve for opening and closing the through hole is passed through the through hole, the water inlet valve comprises a valve cover located in the kettle cavity and a valve body abutting against the bottom of the heating plate, the upper end of the valve body passes through the through hole and extends into the kettle cavity, and is threadedly connected to the valve cover so that the valve body and the valve cover jointly clamp the heating plate.

[0005] In the above-mentioned kettle, a lower sealing ring surrounding the valve body is clamped between the valve cover and the heating plate, and the inner side wall of the lower sealing ring abuts against the outer side wall of the valve body.

[0006] In the above-mentioned kettle, the lower sealing ring includes a ring body passed through the through hole and an upper sealing lip connected to the top of the ring body, the ring body respectively abuts against the outer wall of the valve body and the inner wall of the through hole, and the upper sealing lip is clamped between the valve cover and the heating plate.

[0007] In the above kettle, the valve cover includes a cover body covering the upper part of the valve body and a surrounding edge surrounding the cover body, wherein the surrounding edge is arranged at the bottom of the outer side wall of the cover body and abuts against the top surface of the upper sealing lip.

[0008] In the above-mentioned kettle, the lower sealing ring also includes a lower sealing lip connected to the bottom of the ring body, and the lower sealing lip abuts against the bottom surface of the heating plate so that the lower sealing ring is wrapped around the heating plate on the side of the through hole.

[0009] In the above-mentioned kettle, the heating plate assembly also includes an upper coupler connected to the bottom of the heating plate, the upper coupler is arranged around the water inlet valve, and the top of the upper coupler is against the valve body to press the valve body against the bottom of the heating plate.

[0010] In the above-mentioned kettle, a plurality of positioning plates are provided on the outer peripheral side of the upper coupler, and positioning columns corresponding to the positioning plates are provided at the bottom of the heating plate. Screws pass through the positioning plates and are locked with the positioning columns to fix the upper coupler to the bottom of the heating plate.

[0011] In the above-mentioned kettle, the water inlet valve also includes an upper sealing ring arranged between the valve cover and the valve body, the bottom surface of the upper sealing ring abuts against the top of the valve body, and the outer side wall of the upper sealing ring abuts against the valve cover.

[0012] In the above kettle, a slot is provided on the valve cover, and a plug-in column is provided on the upper sealing ring. The plug-in column protrudes upward and is plugged into the slot.

[0013] In the above-mentioned kettle, an annular convex rib is provided at the bottom of the upper sealing ring, and the annular convex rib extends into the water inlet channel of the valve body and abuts against the inner side wall of the water inlet channel.

[0014] The beneficial effects of the utility model are:

[0015] A kettle comprises a kettle body forming a kettle cavity and a heating plate assembly installed at the bottom of the kettle body, the heating plate assembly comprises a heating plate provided with a through hole, a water inlet valve for opening and closing the through hole is penetrated in the through hole, the water inlet valve comprises a valve cover located in the kettle cavity and a valve body abutting against the bottom of the heating plate, the upper end of the valve body passes through the through hole and extends into the kettle cavity, and is threadedly connected with the valve cover, so that the valve body and the valve cover clamp the heating plate together. The technical solution has the following technical effects:

[0016] The utility model passes the valve body through the heating plate to be threadedly connected to the valve cover in the kettle cavity, so that the valve body and the valve cover are locked and the heating plate is clamped together, thereby making the connection between the heating plate and the water inlet valve tighter and more reliable, improving the sealing between the heating plate and the water inlet valve, and avoiding water leakage due to a large gap at the connection between the two. The valve cover and the valve body can adjust the relative positions by rotation, so that the valve cover and the valve body clamp heating plates of various thicknesses, thereby having a wider range of applications. The threaded valve body and valve cover are more convenient for disassembly and assembly of the water inlet valve. When the water hole of the valve cover is blocked or other situations require cleaning, the user can easily remove the valve cover and the valve body from the heating plate by rotating the valve cover, so that the user can clean them by himself, thereby improving the user experience.

[0017] A lower sealing ring surrounding the valve body is clamped between the valve cover and the heating plate, and the inner side wall of the lower sealing ring abuts against the outer side wall of the valve body. The part of the lower sealing ring clamped between the valve cover and the heating plate can ensure the sealing between the bottom surface of the valve cover and the top surface of the heating plate, and the part of the lower sealing ring attached to the outer side wall of the valve body can seal the bottom of the connection between the valve cover and the valve body, preventing water from leaking between the valve cover and the heating plate or between the valve cover and the valve body, and the sealing effect is good.

[0018] The lower sealing ring includes a ring body passing through the through hole and an upper sealing lip connected to the top of the ring body. The ring body abuts against the outer wall of the valve body and the inner wall of the through hole respectively, and the upper sealing lip is clamped between the valve cover and the heating plate. The upper sealing lip is clamped between the bottom of the valve cover and the heating plate to seal between the bottom surface of the valve cover and the top surface of the heating plate. The ring body passes through the through hole, and the inner wall of the ring body abuts against the outer wall of the valve body. The outer wall of the ring body abuts against the inner wall of the through hole to seal between the valve body and the inner wall of the through hole. Through the combination of the upper sealing lip and the ring body, the lower sealing ring can better seal between the water inlet valve and the heating plate.

[0019] The valve cover includes a cover body covering the upper part of the valve body and a surrounding edge surrounding the cover body, the surrounding edge is arranged at the bottom of the outer side wall of the cover body and abuts against the top surface of the upper sealing lip. The valve cover increases the contact area between the bottom surface of the cover body and the upper sealing lip through the surrounding edge, so that the upper sealing lip is tightly fitted on the top surface of the heating plate under the pressure of the surrounding edge, and the sealing effect is better.

[0020] The lower sealing ring also includes a lower sealing lip connected to the bottom of the ring body, and the lower sealing lip abuts against the bottom surface of the heating plate, so that the lower sealing ring wraps around the heating plate on the side of the through hole. The lower sealing lip cooperates with the upper sealing lip and the ring body, so that the lower sealing ring can seal all the connection surfaces between the heating plate and the water inlet valve, and the sealing effect is good.

[0021] The heating plate assembly also includes an upper coupler connected to the bottom of the heating plate. The upper coupler is arranged around the water inlet valve, and the top of the upper coupler abuts against the valve body to press the valve body against the bottom of the heating plate. The cooperation between the upper coupler and the valve body enables the upper coupler installed at the bottom of the heating plate to push the valve body upward, so that the abutment effect between the valve body and the heating plate is better, and the sealing between the valve body and the heating plate is enhanced.

[0022] A plurality of positioning plates are provided on the outer peripheral side of the upper coupler, and positioning columns corresponding to the positioning plates are provided at the bottom of the heating plate. Screws pass through the positioning plates and are locked with the positioning columns to fix the upper coupler to the bottom of the heating plate, thereby enhancing the stability of the connection between the upper coupler and the heating plate. At the same time, it is easy to install and disassemble, and reduces the cost of maintenance and replacement.

[0023] The water inlet valve also includes an upper sealing ring disposed between the valve cover and the valve body, the bottom surface of the upper sealing ring abuts against the top of the valve body, and the outer wall of the upper sealing ring abuts against the valve cover. That is, the upper sealing ring can block the top of the gap between the inner wall of the valve cover and the outer wall of the valve body, preventing the water flow in the water inlet channel from leaking through the gap between the valve cover and the valve body, and enhancing the sealing performance of the connection between the valve cover and the valve body.

[0024] A slot is provided on the valve cover, and a plug-in column is provided on the upper sealing ring. The plug-in column protrudes upward and is plugged into the slot. Through the cooperation of the slot and the plug-in column, the upper sealing ring can be quickly installed and positioned during installation, reducing the difficulty of assembly.

[0025] An annular convex rib is provided at the bottom of the upper sealing ring, which extends into the water inlet channel of the valve body and abuts against the inner wall of the water inlet channel. The outer wall of the annular convex rib abuts against the inner wall of the water inlet channel to increase the abutment area between the upper sealing ring and the valve body, further enhance the sealing between the upper sealing ring and the valve body, and prevent liquid from passing through the gap between the bottom surface of the upper sealing ring and the top surface of the valve body.

[0026] The features and advantages of the present invention will be disclosed in detail in the following specific implementations and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0028] Figure 1 is a cross-sectional view of a kettle;

[0029] Figure 2 for Figure 1 A magnified view of part A;

[0030] Figure 3 This is an exploded view of the heating plate assembly and the water valve;

[0031] Figure 4 It is a partial cross-sectional view of the water valve.

[0032] Reference numerals:

[0033] 100, teapot body; 110, teapot cavity;

[0034] 200, heating plate assembly; 210, heating plate; 211, through hole; 220, upper coupler; 221, positioning piece; 230, screw;

[0035] 300, water inlet valve; 310, valve cover; 311, cover body; 3111, water hole; 312, surrounding edge; 313, slot; 320, valve body; 321, cylinder; 3211, water inlet channel; 322, annular limiting rib; 330, valve core;

[0036] 400, lower sealing ring; 410, ring body; 420, upper sealing lip; 430, lower sealing lip;

[0037] 500, upper sealing ring; 510, plug-in column; 520, annular convex rib. DETAILED DESCRIPTION

[0038] The utility model provides a kettle, comprising a kettle body forming a kettle cavity and a heating plate assembly installed at the bottom of the kettle body, the heating plate assembly comprising a heating plate provided with a through hole, a water inlet valve for opening and closing the through hole passing through the through hole, the water inlet valve comprising a valve cover located in the kettle cavity and a valve body abutting against the bottom of the heating plate, the upper end of the valve body passes through the through hole and extends into the kettle cavity, and is threadedly connected to the valve cover, so that the valve body and the valve cover clamp the heating plate together. The utility model passes the valve body through the heating plate to be threadedly connected to the valve cover in the kettle cavity, so that the valve body and the valve cover are locked and the heating plate is clamped together, thereby making the connection between the heating plate and the water inlet valve tighter and more reliable, improving the sealing between the heating plate and the water inlet valve, and avoiding water leakage due to a large gap at the connection between the two. The valve cover and the valve body can adjust the relative positions by rotation, so that the valve cover and the valve body clamp heating plates of various thicknesses, thereby having a wider range of applications. The threaded valve body and valve cover are more convenient for disassembly and assembly of the water inlet valve. When the water hole of the valve cover is blocked or other situations require cleaning, the user can easily remove the valve cover and the valve body from the heating plate by rotating the valve cover, so that the user can clean them by himself, thereby improving the user experience.

[0039] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] Example:

[0045] A kettle, such as Figures 1 to 4As shown, it includes a kettle body 100 and a heating plate assembly 200, the kettle body 100 forms a kettle cavity 110 for containing liquid, the heating plate assembly 200 is installed at the bottom of the kettle body 100 to cover the bottom of the kettle cavity 110, the heating plate assembly 200 includes a heating plate 210 for heating the liquid in the kettle cavity 110, a through hole 211 is provided at the center of the heating plate 210, a water inlet valve 300 is penetrated in the through hole 211, the water inlet valve 300 is used to control the opening and closing of the through hole 211, the water inlet valve 300 includes a valve body 320, a valve core 330 and a valve cover 310, the valve body 320 includes a cylinder 321 and an annular limiting rib 322 arranged around the cylinder 321, the annular limiting rib 322 is against the heating plate 210 on the outer peripheral side of the bottom of the through hole 211, and the cylinder located above the annular limiting rib 322 The body 321 extends into the pot cavity 110 through the through hole 211, and a water inlet channel 3211 vertically penetrating the cylinder body 321 is provided on the cylinder body 321, and the water inlet channel 3211 is used to connect the outside and the pot cavity 110, and the valve core 330 is penetrated in the water inlet channel 3211 to control the opening and closing of the water inlet channel 3211, and the valve cover 310 is entirely located in the pot cavity 110, and the valve cover 310 is installed on the top of the valve body 320, and a water hole 3111 for connecting the water inlet channel 3211 and the pot cavity 110 is provided on the valve cover 310, and the valve cover 310 is threadedly connected to the valve body 320, and the bottom surface of the valve cover 310 is against the heating plate 210 on the outer peripheral side of the top of the through hole 211, so as to clamp the heating plate 210 together with the annular limiting rib 322, so as to realize the installation and fixation of the water inlet valve 300 on the heating plate 210.

[0046] The utility model passes the valve body 320 through the heating disk 210 to be threadedly connected to the valve cover 310 in the kettle cavity 110, so that the valve body 320 and the valve cover 310 are locked and clamp the heating disk 210 together, thereby making the connection between the heating disk 210 and the water inlet valve 300 tighter and more reliable, improving the sealing between the heating disk 210 and the water inlet valve 300, and avoiding water leakage due to a large gap at the connection between the two. The valve cover 310 and the valve body 320 can adjust the relative position by rotation, so that the valve cover 310 and the valve body 320 can clamp heating disks of various thicknesses, and have a wider range of applications. The threaded valve body 320 and the valve cover 310 are more convenient for disassembly and assembly of the water inlet valve 300. When the water hole 3111 of the valve cover 310 is blocked or other situations require cleaning, the user can easily remove the valve cover 310 and the valve body 320 from the heating disk 210 by rotating the valve cover 310, so that the user can clean them by himself, thereby improving the user experience.

[0047] like Figure 2As shown, in this embodiment, the kettle further comprises a lower sealing ring 400, which surrounds the outer peripheral side of the valve body 320, and the inner side wall of the lower sealing ring 400 abuts against the outer side wall of the valve body 320, and the valve cover 310 and the heating plate 210 clamp the lower sealing ring 400 together to limit the lower sealing ring 400. The portion of the lower sealing ring 400 clamped between the valve cover 310 and the heating plate 210 can ensure the sealing between the bottom surface of the valve cover 310 and the top surface of the heating plate 210 by the lower sealing ring 400, and the portion of the lower sealing ring 400 affixed to the outer side wall of the valve body 320 can seal the bottom of the gap at the connection between the valve cover 310 and the valve body 320, so as to prevent water from leaking through the valve cover 310 and the heating plate 210 or between the valve cover 310 and the valve body 320, and the sealing effect is good.

[0048] The lower sealing ring 400 includes a ring body 410 and an upper sealing lip 420 connected to the top of the ring body 410. The upper sealing lip 420 is clamped between the bottom of the valve cover 310 and the heating plate 210 to seal the bottom surface of the valve cover 310 and the top surface of the heating plate 210. The ring body 410 is penetrated into the through hole 211. The inner wall of the ring body 410 abuts against the outer wall of the valve body 320. The outer wall of the ring body 410 abuts against the inner wall of the through hole 211 to seal the valve body 320 and the inner wall of the through hole 211. Through the combination of the upper sealing lip 420 and the ring body 410, the lower sealing ring 400 can better seal the water inlet valve 300 and the heating plate 210. In order to enhance the sealing of the lower sealing ring 400 between the water inlet valve 300 and the heating plate 210, the lower sealing ring 400 in this embodiment also includes a lower sealing lip 430 connected to the bottom of the ring body 410, and the top surface of the lower sealing lip 430 is abutted against the bottom surface of the heating plate 210, so that the lower sealing ring 400 is wrapped around the heating plate 210 on the side of the through hole 211, and the bottom surface of the lower sealing lip 430 is abutted against the top surface of the annular limiting rib 322, so as to clamp the lower sealing lip 430 together with the heating plate 210 through the annular limiting rib 322. This structure enables the through hole 211 of the heating plate 210 to abut against the valve cover 310, the cylinder body 321 and the annular limiting rib 322 through the lower sealing ring 400, so that the lower sealing ring 400 can seal all connecting surfaces between the heating plate 210 and the water inlet valve 300, and the sealing effect is good.

[0049] like Figure 3As shown, the valve cover 310 in this embodiment includes a cover body 311 and a surrounding edge 312. The cover body 311 is covered on the cylinder 321 above the annular limiting rib 322. The water hole 3111 is provided on the cover body 311. The surrounding edge 312 is provided around the outer peripheral side of the bottom of the cover body 311 and protrudes from the outer side wall of the cover body 311. The valve cover 310 presses the upper sealing lip 420 onto the heating plate 210 through the bottom surface of the surrounding edge 312. The valve cover 310 increases the contact area between the bottom surface of the cover body 311 and the upper sealing lip 420 through the surrounding edge 312, so that the upper sealing lip 420 is tightly fitted on the top surface of the heating plate 210 as a whole under the extrusion of the surrounding edge 312, and the sealing effect is better.

[0050] The heating plate assembly 200 also includes an upper coupler 220, which is connected to the bottom of the heating plate 210. When the kettle is placed on a structure such as a base provided with a lower coupler, the upper coupler 220 is used to electrically connect with the lower coupler to enable the kettle to be powered on. In the present embodiment, the upper coupler 220 is arranged around the water inlet valve 300, and the top of the upper coupler 220 abuts against the bottom of the annular limiting rib 322 to press the lower sealing lip 430 through the annular limiting rib 322. The cooperation between the upper coupler 220 and the annular limiting rib 322 enables the upper coupler 220 installed at the bottom of the heating plate 210 to push the valve body 320 upward, so that the abutment effect between the valve body 320 and the heating plate 210 is better, thereby enhancing the sealing between the valve body 320 and the heating plate 210. Preferably, in this embodiment, a plurality of positioning plates 221 are provided on the outer peripheral side of the upper coupler 220, and a plurality of positioning columns are provided on the bottom of the heating plate 210. The positioning columns and the positioning plates 221 are arranged in a one-to-one correspondence. The screws 230 pass through the positioning plates 221 and are locked with the positioning columns to fix the upper coupler 220 to the bottom of the heating plate 210, thereby enhancing the stability of the connection between the upper coupler 220 and the heating plate 210 and facilitating installation and disassembly, thereby reducing the cost of maintenance and replacement.

[0051] like Figure 4As shown, in the present embodiment, the water inlet valve 300 further includes an upper sealing ring 500, which is disposed between the valve cover 310 and the valve body 320, the bottom surface of the upper sealing ring 500 abuts against the top of the valve body 320, and the outer wall of the upper sealing ring 500 abuts against the inner wall of the valve cover 310, that is, the upper sealing ring 500 can block the top of the gap between the inner wall of the valve cover 310 and the outer wall of the valve body 320, thereby preventing the water flow in the water inlet channel 3211 from leaking through the gap between the valve cover 310 and the valve body 320, and enhancing the sealing performance of the connection between the valve cover 310 and the valve body 320. In this embodiment, an annular convex rib 520 is provided at the bottom of the upper sealing ring 500, and the annular convex rib 520 extends into the water inlet channel 3211 of the valve body 320. The outer wall of the annular convex rib 520 abuts against the inner wall of the water inlet channel 3211 to increase the abutment area between the upper sealing ring 500 and the valve body 320, further enhance the sealing between the upper sealing ring 500 and the valve body 320, and prevent liquid from passing through the gap between the bottom surface of the upper sealing ring 500 and the top surface of the valve body 320. In order to quickly install and position the upper sealing ring 500 during installation, in this embodiment, a slot 313 facing the water inlet channel 3211 is provided on the valve cover 310, and a plug-in column 510 is provided on the upper sealing ring 500. The plug-in column 510 is plugged into the slot 313 to limit the upper sealing ring 500 and reduce the difficulty of assembly.

[0052] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A kettle, comprising a kettle body forming a kettle cavity and a heating plate assembly installed at the bottom of the kettle body, wherein the heating plate assembly comprises a heating plate provided with a through hole, wherein a water inlet valve for opening and closing the through hole is provided in the through hole, wherein: The water inlet valve includes a valve cover located in the pot cavity and a valve body abutting against the bottom of the heating plate. The upper end of the valve body extends into the pot cavity through the through hole and is threadedly connected to the valve cover so that the valve body and the valve cover clamp the heating plate together.

2. A kettle according to claim 1, characterized in that: A lower sealing ring surrounding the valve body is clamped between the valve cover and the heating plate, and the inner side wall of the lower sealing ring abuts against the outer side wall of the valve body.

3. A kettle according to claim 2, characterized in that: The lower sealing ring includes a ring body passing through the through hole and an upper sealing lip connected to the top of the ring body. The ring body is respectively against the outer wall of the valve body and the inner wall of the through hole, and the upper sealing lip is clamped between the valve cover and the heating plate.

4. A kettle according to claim 3, characterized in that: The valve cover comprises a cover body which is covered on the upper part of the valve body and a surrounding edge which is arranged around the cover body. The surrounding edge is arranged at the bottom of the outer side wall of the cover body and abuts against the top surface of the upper sealing lip.

5. A kettle according to claim 3, characterized in that: The lower sealing ring also includes a lower sealing lip connected to the bottom of the ring body, and the lower sealing lip abuts against the bottom surface of the heating plate, so that the lower sealing ring wraps around the heating plate on the side of the through hole.

6. A kettle according to claim 2, characterized in that: The heating plate assembly also includes an upper coupler connected to the bottom of the heating plate. The upper coupler is arranged around the water inlet valve. The top of the upper coupler abuts against the valve body to press the valve body against the bottom of the heating plate.

7. A kettle according to claim 6, characterized in that: A plurality of positioning plates are provided on the outer peripheral side of the upper coupler, and positioning columns corresponding to the positioning plates are provided at the bottom of the heating plate. Screws pass through the positioning plates and are locked with the positioning columns to fix the upper coupler to the bottom of the heating plate.

8. A kettle according to claim 1, characterized in that: The water inlet valve also includes an upper sealing ring arranged between the valve cover and the valve body, the bottom surface of the upper sealing ring abuts against the top of the valve body, and the outer side wall of the upper sealing ring abuts against the valve cover.

9. A kettle according to claim 8, characterized in that: The valve cover is provided with a slot, the upper sealing ring is provided with a plug-in column, and the plug-in column protrudes upward and is plugged into the slot.

10. A kettle according to claim 8, characterized in that: An annular convex rib is provided at the bottom of the upper sealing ring. The annular convex rib extends into the water inlet channel of the valve body and abuts against the inner side wall of the water inlet channel.

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