CN217090440U

CN217090440U - High strength digital display glass thermo jug

Info

Publication number: CN217090440U
Application number: CN202220658911.3U
Authority: CN
Inventors: 孙银华; 孙剑超
Original assignee: Zhejiang Taiquan Household Products Co ltd
Current assignee: Zhejiang Taiquan Household Products Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-08-02
Anticipated expiration: 2032-03-24

Abstract

The utility model discloses a high strength digital display glass thermo jug relates to household articles, aims at solving the shell and warp the glass inner bag that collides with, leads to the easy damaged hidden danger of glass inner bag, and its technical scheme main points are: the utility model provides a high strength digital display glass thermo jug, includes the kettle body, pot lid, at the bottom of the kettle and glass inner bag, the kettle body is including the lower kettle body that is both ends open structure to and the last kettle body on kettle body top under fixed mounting, the kettle body is cyclic annular stereoplasm metal down, fixed mounting is in the bottom of kettle body under at the bottom of the kettle, at the bottom of the kettle and last kettle body are provided with both ends limit structure, both ends limit structure limits the upper and lower both ends of glass inner bag, forces the glass inner bag to keep apart and is fixed in down inside the kettle body. The utility model discloses a high strength digital display glass thermo jug, through the hardness that improves kettle body main part to it is fixed to restrict the glass inner bag and be the isolation, effectively reduces the glass inner bag and takes place damaged hidden danger.

Description

High strength digital display glass thermo jug

Technical Field

The utility model relates to a household articles, more specifically say, it relates to a high strength digital display glass thermo jug.

Background

The thermo jug is a container specially used for containing liquid, and has the capacity of reducing heat transfer of inner and outer spaces, so that heat preservation of the liquid contained inside is realized.

The glass material is easy to be made into a double-layer hollow structure due to excellent plasticity, so the thermos bottle is generally used as an inner container, but the glass has the problems of high brittleness and easy cracking after collision; the existing thermos flask shells in the market are generally made of plastic materials with lower hardness, so that the hidden danger that the glass liner is easily damaged because the glass liner is collided with the shell in a deformed way exists; therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a high strength digital display glass thermo jug is through the hardness that improves kettle body main part to it is fixed to restrict the glass inner bag and be the isolation, effectively reduces the glass inner bag and takes place damaged hidden danger.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a high strength digital display glass thermo jug, includes the kettle body, pot lid, at the bottom of the kettle and glass inner bag, the kettle body is including the lower kettle body that is both ends open structure to and the last kettle body on kettle body top under fixed mounting, the kettle body is cyclic annular stereoplasm metal down, fixed mounting is in the bottom of kettle body under at the bottom of the kettle, at the bottom of the kettle and last kettle body are provided with both ends limit structure, both ends limit structure limits the upper and lower both ends of glass inner bag, forces the glass inner bag to keep apart and is fixed in down inside the kettle body.

By adopting the technical scheme, the lower kettle body adopts the annular hard metal, so that the hardness of the main body of the kettle body is ensured, the deformation resistance of the kettle body is effectively improved, and the hidden danger of damage to the glass liner caused by deformation of the kettle body is reduced; the upper end and the lower end of the glass inner container are limited by the two-end limiting structures, so that the glass inner container is mounted inside the lower kettle body at intervals, namely a certain interval space is reserved between the lower kettle body and the glass inner container, and further, when the lower kettle body collides or slightly deforms, the glass inner container cannot be influenced, and the hidden danger of breakage of the glass inner container is further reduced; to sum up, this application is through improving the hardness of kettle body main part to it is fixed to restrict the glass inner bag and be the isolation, effectively reduces the glass inner bag and takes place damaged hidden danger.

The utility model discloses further set up to: the top end of the lower kettle body is provided with a turned edge steel ring, the bottom end of the upper kettle body is embedded into the lower kettle body, the outer circumferential surface of the upper kettle body is provided with a clamping ring groove, and the turned edge steel ring is embedded into the clamping ring groove in an interference manner; the kettle is characterized in that a turned edge support ring is arranged at the bottom end of the lower kettle body, an internal thread sleeve is fixedly supported on the turned edge support ring, and external thread teeth are arranged on the outer circumferential surface of the kettle bottom and are in threaded fit with the internal thread sleeve.

The utility model discloses further set up to: one side of the upper kettle body is provided with a kettle mouth, the other side of the upper kettle body is provided with a kettle handle, and the bottom end of the kettle handle is attached to the lower kettle body and is reinforced by bolts.

The utility model discloses further set up to: the two-end limiting structure comprises a pressing limiting ring arranged on the upper kettle body, a liner sealing ring embedded and fixed on the pressing limiting ring, and a regulating valve arranged in the circle center of the kettle bottom, the section of the liner sealing ring is in an inverted L shape, the vertical section of the liner sealing ring is sleeved on the glass liner, the horizontal end of the liner sealing ring is tightly pressed on the opening edge at the top end of the glass liner, the regulating valve is coaxially connected with the kettle bottom in a threaded manner, the top end of the regulating valve is provided with a supporting edge, and the supporting edge is wrapped and supported at the bottom end of the glass liner.

The utility model discloses further set up to: the pot lid bottom is provided with the pot lid sealing washer, the pot lid sealing washer cooperates with the last along butt of pushing down the restriction circle.

The utility model discloses further set up to: the kettle cover is characterized in that a liquid flowing cavity is formed in the center of the lower end face of the kettle cover, a liquid flowing channel is arranged between the liquid flowing cavity and the kettle nozzle, and a valve core assembly used for isolating the liquid flowing cavity and the glass inner container is arranged on the kettle cover along the central axis.

The utility model discloses further set up to: the valve core assembly comprises a valve core shaft, an isolation disc and a compression spring, wherein the valve core shaft slides along the central axis of the kettle cover, the isolation disc is arranged at the bottom end of the valve core shaft, the compression spring is used for releasing upward elastic potential energy to the valve core shaft, a valve core sealing ring is arranged at the edge of the isolation disc, and the valve core sealing ring is in butt fit with the edge of an opening at the bottom end of the liquid flowing cavity.

The utility model discloses further set up to: the kettle cover is vertically and movably connected with a downward pushing piece, the downward pushing piece is abutted to the top end of the valve core shaft, the downward pushing piece is provided with a key, and the key extends out of the outer wall of the kettle cover and is located at the same side as the kettle handle in displacement.

The utility model discloses further set up to: the kettle cover is characterized in that an electrical appliance installation cavity is formed in the top end of the kettle cover, a digital display module is arranged in the electrical appliance installation cavity, a temperature sensing probe is coaxially fixed on the valve mandrel, the bottom end of the temperature sensing probe penetrates through the valve mandrel, the temperature sensing probe is in electrical signal connection with the digital display module, a perspective cover covers the top surface of the kettle cover, and the perspective cover seals an opening in the top end of the electrical appliance installation cavity.

The utility model discloses further set up to: the electric appliance mounting cavity is internally provided with a rechargeable lithium battery which is used for supplying power for the digital display module and the temperature sensing probe, the rechargeable lithium battery is connected with a charging port in a circuit mode, the charging port is exposed out of the outer wall of the pot cover, and the pot cover is provided with a silica gel cover which is used for sealing the charging port.

To sum up, the utility model discloses following beneficial effect has: the hidden danger of breakage of the glass inner container is effectively reduced by improving the hardness of the main body part of the kettle body and limiting the glass inner container to be isolated and fixed; the technical requirement of assembling the upper kettle body at the top end of the lower kettle body is met by matching the curling steel ring and the clamping ring groove, and the kettle is simple in structure and convenient and fast to assemble; the lower kettle body made of thin-wall metal materials is provided with a threaded connection condition by additionally arranging the internal thread sleeve, so that the detachable installation of the kettle bottom is realized, the assembly convenience is effectively improved, and the condition that a user can replace the glass liner is met; the support height of the support edge can be adjusted by screwing the adjusting valve, and the longitudinal clamping force of the limiting structures at the two ends can be adjusted, so that the technical effect of adapting to small dimensional accuracy and small amplitude error of the glass liner is achieved; the liquid channel can be communicated and closed only by loosening or applying force to the valve core shaft, and the technical effect of simple operation is achieved; when a user lifts and pulls the kettle handle with one hand, the user can press the key with the thumb, so that the application can be operated with one hand, and the operation convenience of the user is further improved; by temperature sensing probe real-time supervision liquid temperature and to the digital display module emergence real-time temperature signal to show this application inside temperature condition by the digital display module in real time, reach the visual real-time temperature's of digital technological effect promptly.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is an exploded view of the present application;

FIG. 3 is a half sectional view of the present application;

FIG. 4 is a cross-sectional view of the lid of the present application;

fig. 5 is a cross-sectional view of the lid of the present application from another perspective.

Description of the drawings: 2. a pot lid; 3. a kettle bottom; 4. a glass liner; 5. a lower kettle body; 6. an upper kettle body; 7. curling steel rings; 8. clamping the ring groove; 9. a spout; 10. a kettle handle; 11. pressing down the limit ring; 12. a liner sealing ring; 13. adjusting a valve; 14. supporting edges; 15. a sealing ring of the kettle cover; 16. a fluid flow chamber; 17. a fluid passage; 18. a spool shaft; 19. isolating the disc; 20. a compression spring; 21. a valve core sealing ring; 22. pushing down the piece; 23. pressing a key; 24. an electrical appliance mounting cavity; 25. a digital display module; 26. a temperature sensing probe; 27. a see-through cover; 28. rechargeable lithium batteries; 29. a charging port; 30. a silica gel cover; 31. crimping the support ring; 32. an internal thread sleeve; 33. external thread.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a high strength digital display glass thermo jug, as shown in figure 1, figure 2, figure 3 shows, including the kettle body,

pot lid

2, 3 and glass inner bag 4 at the bottom of the kettle, the kettle body is including being both ends open structure's lower kettle body 5, and fixed mounting is in the last kettle body 6 on 5 tops of kettle body down, lower kettle body 5 is cyclic annular stereoplasm metal, for example annular stainless steel, annular aluminum alloy etc. 3 screw thread fixed mounting is in the bottom of kettle body 5 down at the bottom of the kettle, 3 and last kettle body 6 are provided with both ends limit structure at the bottom of the kettle, both ends limit structure limits the upper and lower both ends of glass inner bag 4, force glass inner bag 4 to keep apart and be fixed in down inside kettle body 5.

The lower kettle body 5 is made of annular hard metal, so that the hardness of the main body of the kettle body is ensured, the deformation resistance of the kettle body is effectively improved, and the hidden danger that the glass liner 4 is damaged due to the deformation of the kettle body is reduced; the upper end and the lower end of the glass inner container 4 are limited by adopting a two-end limiting structure, so that the glass inner container 4 is installed inside the lower kettle body 5 at intervals, namely a certain interval space is reserved between the lower kettle body 5 and the glass inner container 4, and further the glass inner container 4 cannot be influenced when the lower kettle body 5 is collided or slightly deformed, and the hidden danger of breakage of the glass inner container 4 is further reduced; to sum up, this application is through improving the hardness of kettle body main part to it is fixed to restrict glass inner bag 4 to be kept apart, effectively reduces glass inner bag 4 and takes place damaged hidden danger.

The lower kettle body 5 is assembled with the upper kettle body 6 into a whole in the following mode, as shown in fig. 3, a curled edge steel ring 7 is formed at the top end of the lower kettle body 5 in a machining mode, the bottom end of the upper kettle body 6 is embedded into the lower kettle body 5, a clamping ring groove 8 is formed in the outer circumferential surface in an integrated mode, the curled edge steel ring 7 is embedded into the clamping ring groove 8 in an interference mode, and therefore the technical requirement that the upper kettle body 6 is assembled at the top end of the lower kettle body 5 is achieved through the cooperation between the curled edge steel ring 7 and the clamping ring groove 8.

The kettle bottom 3 is assembled on the kettle body in the following way, as shown in figures 2 and 3, a turned edge support ring 31 is formed at the bottom end of the lower kettle body 5 in a processing way, an internal thread sleeve 32 is supported and fixed on the turned edge support ring 31, external thread teeth 33 are integrally formed on the outer circumferential surface of the kettle bottom 3, and the external thread teeth 33 are in thread fit with the internal thread sleeve 32; the thin-wall metal material lower kettle body 5 is endowed with the threaded connection condition by additionally arranging the internal thread sleeve 32, so that the detachable installation of the kettle bottom 3 is realized, the assembly convenience is effectively improved, and the condition that a user can replace the glass liner 4 by himself is provided.

The upper kettle body 6 has the following specific structure, as shown in fig. 2 and 3, a spout 9 is integrally formed on one side of the upper kettle body 6, a handle 10 is integrally formed on the other side of the upper kettle body, and the spout 9 and the handle 10 are distributed on two sides, so that the water pouring experience of a user is ensured; the kettle is 10 bottoms and laminating in kettle body 5 and bolt reinforcement down, realizes on the one hand that it takes place to bend the reinforcement of 10 to the kettle, prevents effectively that it from warping, and on the other hand realizes the reinforcement to last kettle body 6, further improves the assembly strength of going up kettle body 6 and kettle body 5 down.

The specific structure of both ends limit structure is as follows, as shown in fig. 2, fig. 3, both ends limit structure includes integrated into one piece in the lower pressure limit circle 11 of last kettle body 6, the gomphosis is fixed in the inner bag sealing washer 12 of lower pressure limit circle 11, and the adapter sleeve sets up the governing valve 13 in the 3 centre of a circle at the bottom of the kettle, inner bag sealing washer 12 cross-section is the shape of invering L, its vertical section cup joints in glass inner bag 4, its horizontal end compresses tightly in the opening edge in 4 tops of glass inner bag, governing valve 13 coaxial thread connects at the bottom of the kettle 3, its top is provided with holds in the palm along 14, hold in the palm along 14 parcel support in the spherical face in the bottom of glass inner bag 4.

The upper kettle body 6 is provided with the pressing limiting ring 11 and the inner container sealing ring 12, so that the limitation on the top end of the glass inner container 4 is completed, the sealing connection of the upper kettle body 6 and the opening end of the glass inner container 4 is realized, and liquid or water vapor in the glass inner container 4 is effectively prevented from entering between the glass inner container 4 and the lower kettle body 5; the bottom of the kettle 3 utilizes and holds in the palm along 14 and the spherical surface contact in bottom of glass inner bag 4 to the realization holds in the palm along 14 annular cambered surface restrictions to glass inner bag 4, effectively improves the restriction effect to glass inner bag 4 bottom, simultaneously, twists the governing valve 13 and can adjust the support height who holds in the palm along 14, gives the vertical clamp force controllability of both ends limit structure, and then reaches the technological effect who adapts to the small range error of 4 size precision of glass inner bag.

For improving the pot lid 2 lid and closing the leakproofness, as shown in figure 2, 3, 2 bottom fixed mounting of pot lid have pot lid sealing washer 15, pot lid sealing washer 15 and the cooperation of pressing down the last butt of restricting ring 11, thereby utilize pot lid sealing washer 15 to ensure pot lid 2 and the leakproofness of pressing down restricting ring 11, combine to press down restricting ring 11 and pass through the sealing connection of inner bag sealing washer 12 with 4 open ends of glass inner bag, realize that pot lid 2 closes the leakproofness to 4 open ends of glass inner bag, effectively ensure the lid of pot lid 2 and close the leakproofness.

In the present application, the liquid in the glass inner container 4 is poured out in the following manner, as shown in fig. 3 and 4, a liquid flowing cavity 16 is arranged at the center of the lower end face of the kettle cover 2, a liquid flowing channel 17 is arranged between the liquid flowing cavity 16 and the kettle nozzle 9, and the kettle cover 2 is provided with a valve core assembly along the central axis for isolating the liquid flowing cavity 16 from the glass inner container 4; when liquid in the glass inner container 4 needs to be poured out, the connectivity between the glass inner container 4 and the liquid flowing cavity 16 is opened through the valve core assembly, and when the liquid pouring spout is inclined, the liquid in the glass inner container 4 is poured out through the spout 9 after being guided by the liquid flowing cavity 16 and the liquid flowing channel 17.

The specific structure of the valve core assembly is as follows, as shown in fig. 4, the valve core assembly comprises a valve core shaft 18 sliding along the central axis of the kettle cover 2, an isolation disc 19 integrally formed at the bottom end of the valve core shaft 18, and a compression spring 20 releasing upward elastic potential energy to the valve core shaft 18, wherein a valve core sealing ring 21 is fixedly sleeved on the edge of the isolation disc 19, and the valve core sealing ring 21 is in butt fit with the edge of the opening at the bottom end of the liquid flowing cavity 16.

Under the condition that the valve core assembly is not interfered by external force, the compression spring 20 releases elastic potential energy to push the valve core shaft 18 and the isolation disc 19 to integrally move upwards until the valve core sealing ring 21 is tightly propped against the edge of the opening at the bottom end of the flowing liquid cavity 16, so that the isolation of the flowing liquid cavity 16 and the inner cavity of the glass liner 4 is realized; when water needs to be poured, a user applies downward thrust to the valve core shaft 18 to force the valve core shaft and the isolation disc 19 to integrally move downwards, so that the valve core sealing ring 21 can be driven to be separated from the edge of the opening at the bottom end of the liquid flow cavity 16, the communication between the liquid flow cavity 16 and the inner cavity of the glass inner container 4 is completed, and a liquid channel from the glass inner container 4 to the kettle nozzle 9 is communicated; in summary, the liquid channel can be conducted and closed only by loosening or applying force to the valve plug shaft 18, and the technical effect of simple operation is achieved.

In order to facilitate a user to apply downward pushing force to the valve core shaft 18, as shown in fig. 4, the kettle cover 2 is vertically and movably connected with a downward pushing member 22, the downward pushing member 22 abuts against the top end of the valve core shaft 18, a key 23 is integrally formed on the downward pushing member 22, and the key 23 extends out of the outer wall of the kettle cover 2, so that an external force application point is provided by the key 23, and the convenience of applying force to the valve core shaft 18 by the user is effectively improved; it should be noted that the button 23 is displaced on the same side as the kettle handle 10, so that when the user lifts the kettle handle 10 with one hand, the user can press the button 23 with the thumb, that is, the application can be operated with one hand, and the operation convenience of the user is further improved.

In order to realize digital visualization of the internal liquid temperature, as shown in fig. 4, an electrical appliance installation cavity 24 is integrally formed at the top end of the kettle cover 2, a digital display module 25 is installed in the electrical appliance installation cavity 24, a temperature sensing probe 26 is coaxially fixed on the valve core shaft 18, the bottom end of the temperature sensing probe 26 penetrates through the valve core shaft 18, the temperature sensing probe 26 is in electrical signal connection with the digital display module 25, a perspective cover 27 covers the top surface of the kettle cover 2, and the perspective cover 27 closes an opening at the top end of the electrical appliance installation cavity 24; the temperature sensing probe 26 monitors the liquid temperature in real time and generates a real-time temperature signal to the digital display module 25, so that the digital display module 25 displays the internal temperature condition of the application in real time, and the technical effect of digital visual real-time temperature is achieved.

As shown in fig. 4 and 5, a rechargeable lithium battery 28 is disposed in the electric appliance mounting cavity 24 for supplying power to the digital display module 25 and the temperature sensing probe 26, the rechargeable lithium battery 28 is electrically connected to a charging port 29, the charging port 29 is exposed out of the outer wall of the pot lid 2, and the pot lid 2 is provided with a silicone cover 30 for closing the charging port 29.

The specific embodiments are only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a high strength digital display glass thermo jug, includes the kettle body, pot lid (2), at the bottom of the kettle (3) and glass inner bag (4), its characterized in that: the kettle body comprises a lower kettle body (5) with two-end opening structures and an upper kettle body (6) fixedly mounted on the top end of the lower kettle body (5), the lower kettle body (5) is made of annular hard metal, the kettle bottom (3) is fixedly mounted at the bottom end of the lower kettle body (5), the kettle bottom (3) and the upper kettle body (6) are provided with two-end limiting structures, the two-end limiting structures limit the upper and lower ends of the glass inner container (4), and the glass inner container (4) is forced to be isolated and fixed inside the lower kettle body (5).

2. The high strength digital display glass thermos bottle according to claim 1, wherein: a turned edge steel ring (7) is arranged at the top end of the lower kettle body (5), the bottom end of the upper kettle body (6) is embedded into the lower kettle body (5), a clamping ring groove (8) is arranged on the outer circumferential surface, and the turned edge steel ring (7) is embedded into the clamping ring groove (8) in an interference fit manner;

the kettle is characterized in that a turned edge support ring (31) is arranged at the bottom end of the lower kettle body (5), an internal thread sleeve (32) is fixedly supported on the turned edge support ring (31), external thread teeth (33) are arranged on the outer circumferential surface of the kettle bottom (3), and the external thread teeth (33) are in threaded fit with the internal thread sleeve (32).

3. The high strength digital display glass thermos bottle according to claim 1, wherein: one side of the upper kettle body (6) is provided with a kettle mouth (9), the other side of the upper kettle body is provided with a kettle handle (10), and the bottom end of the kettle handle (10) is attached to the lower kettle body (5) and is reinforced by bolts.

4. The high strength digital display glass thermos bottle according to claim 3, wherein: both ends limit structure is fixed in inner bag sealing washer (12) of pushing down limit ring (11) including setting up in pushing down limit ring (11), the gomphosis of last kettle body (6) to and set up in governing valve (13) at the bottom of the kettle (3) centre of a circle, inner bag sealing washer (12) cross-section is inversion L shape, and its vertical section cup joints in glass inner bag (4), and its horizontal end compresses tightly in glass inner bag (4) top opening edge, governing valve (13) coaxial thread connects at the bottom of the kettle (3), and its top is provided with holds in the palm along (14), hold in the palm along (14) parcel support in the bottom of glass inner bag (4).

5. The high strength digital display glass thermos bottle according to claim 4, wherein: pot lid sealing washer (15) are provided with pot lid (2) bottom, pot lid sealing washer (15) cooperate with the last along butt of pushing down restriction circle (11).

6. The high strength digital display glass thermos bottle according to claim 5, wherein: the kettle cover is characterized in that a liquid flowing cavity (16) is arranged in the center of the lower end face of the kettle cover (2), a liquid flowing channel (17) is arranged between the liquid flowing cavity (16) and the kettle nozzle (9), and the kettle cover (2) is provided with a valve core assembly used for isolating the liquid flowing cavity (16) and the glass inner container (4) along the central axis.

7. The high strength digital display glass thermos bottle according to claim 6, wherein: the valve core assembly comprises a valve core shaft (18) sliding along the central axis of the kettle cover (2), an isolation disc (19) arranged at the bottom end of the valve core shaft (18), and a compression spring (20) releasing upward elastic potential energy to the valve core shaft (18), wherein a valve core sealing ring (21) is arranged at the edge of the isolation disc (19), and the valve core sealing ring (21) is in butt fit with the edge of an opening at the bottom end of the liquid flowing cavity (16).

8. The high strength digital display glass thermos bottle according to claim 7, wherein: the kettle cover (2) is vertically and movably connected with a downward pushing piece (22), the downward pushing piece (22) is abutted to the top end of the valve core shaft (18), the downward pushing piece (22) is provided with a key (23), and the key (23) extends out of the outer wall of the kettle cover (2) and is at the same side as the kettle handle (10) in displacement.

9. The high strength digital display glass thermos bottle according to claim 8, wherein: kettle cover (2) top is provided with electrical apparatus installation cavity (24), be provided with digital display module (25) in electrical apparatus installation cavity (24), case axle (18) coaxial fixation has temperature sensing probe (26), case axle (18) is run through to temperature sensing probe (26) bottom, temperature sensing probe (26) and digital display module (25) signal of telecommunication are connected, kettle cover (2) top surface cover is equipped with perspective lid (27), perspective lid (27) seal electrical apparatus installation cavity (24) top opening.

10. The high strength digital display glass thermos bottle according to claim 9, wherein: the electric appliance mounting cavity (24) is internally provided with a rechargeable lithium battery (28) for supplying power to the digital display module (25) and the temperature sensing probe (26), the rechargeable lithium battery (28) is connected with a charging port (29) in a circuit mode, the charging port (29) is exposed out of the outer wall of the kettle cover (2), and the kettle cover (2) is provided with a silica gel cover (30) for sealing the charging port (29).