CN212234169U

CN212234169U - Cup cover assembly of electric heating cup

Info

Publication number: CN212234169U
Application number: CN202020529543.3U
Authority: CN
Inventors: 陈照; 肖建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-12-29
Anticipated expiration: 2030-04-10

Abstract

A cup cover assembly of an electric heating cup comprises an upper cover and an outer cover, wherein an air flow channel for exhausting or feeding air is arranged in the cup cover assembly and is communicated with an inner container of the electric heating cup; the electric heating water cup heats water, and water vapor in the inner container is discharged out of the electric heating water cup through the waterproof breathable film and the air hole of the air flow channel in sequence; in addition, the electric heating water cup finishes water boiling, the water in the inner container is gradually cooled, and the outside air sequentially enters the inner container through the air hole and the waterproof breathable film of the airflow channel. The utility model discloses can realize heating under the condition that need not to open the bowl cover, can also ensure the internal and external pressure balance of cup in real time, improve the practicality and the functionality of insulating water drinking cup.

Description

Cup cover assembly of electric heating cup

Technical Field

The utility model relates to a drink electrical apparatus, concretely relates to bowl cover subassembly of electric heat drinking cup.

Background

The shell oral area of electric heat drinking cup adopts local screw thread, when turning round the unclamping bowl cover, the hand is when firmly grasping the bowl cover and rotating, and the bowl cover just once can be taken off to the hand rotation bowl cover, if the cup goes wrong, causes the boiling time overlength, and when the steam volume of inside production was greater than the discharge amount, the inner bag of electric heat drinking cup can produce certain pressure inside, when grasping the bowl cover and rotating once in hand, inside steam can explode the bowl cover and fly away, and a large amount of steam can lead to the fact the scald to the people, if: when a consumer uses the electric heating cup of a certain brand for many times, the electric heating cup twists off the shun of the cup cover, and the cup cover is flushed away by steam, so that the accident of scalding the consumer is caused, and the compensation is caused.

Chinese patent document No. CN209995995U at 2020.01.31 discloses an electric heating cup, which comprises a cup body and a cup cover covering the cup body, and further comprises: the waterproof breathable assembly is communicated with the external environment; the pressure release subassembly is provided with the valve body, and waterproof ventilative subassembly and pressure release subassembly all connect on the cup lid, and the valve body sets to: the pressure relief assembly is characterized in that the pressure relief assembly is closed when the air pressure in the cup body is not larger than a preset value, and opened when the air pressure in the cup body is larger than the preset value, wherein partial air in the cup body can be discharged to the external environment along the opened pressure relief assembly. The utility model discloses a cooperation pressure release subassembly and waterproof ventilative subassembly use, lead to the increase of product cost. There is a need for improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reduce the production cost, the operation is safe convenient, effectively solves the bowl cover subassembly of the electric heat drinking cup of balanced electric heat drinking cup inner bag atmospheric pressure to overcome the weak point among the prior art.

The cup cover component of the electric heating cup comprises an upper cover and an outer cover, wherein an air flow channel for exhausting or feeding air is arranged in the cup cover component, the air flow channel is communicated with an inner container of the electric heating cup, an air hole for communicating external air with the air flow channel is arranged in the upper cover, the cup cover component further comprises a waterproof breathable film for preventing liquid from flowing out, and the waterproof breathable film is arranged in the air flow channel; the electric heating water cup heats water, and water vapor in the inner container is discharged out of the electric heating water cup through the waterproof breathable film and the air hole of the air flow channel in sequence; in addition, the electric heating water cup finishes water boiling, the water in the inner container is gradually cooled, and the outside air sequentially enters the inner container through the air hole and the waterproof breathable film of the airflow channel.

The waterproof breathable film divides airflow channel into upper air inlet channel and lower air inlet channel, the cup cover assembly further comprises an upper cover support, the upper cover support and the outer cover are assembled, an assembly gap is formed between the outer cover and the upper cover, an air channel is formed between the outer cover and the upper cover, a sealing groove is arranged at the bottom of the outer cover and provided with a sealing ring, an air inlet hole is formed in the upper surface of the outer cover, and the air channel, the air inlet hole and the air hole are communicated and form the upper air inlet channel.

The cup cover assembly also comprises an outer cover fixing part and an inner cover which are arranged in the outer cover, and the inner cover is arranged at the bottom of the outer cover fixing part; the inner cover is provided with a steam hole communicated with the inner container of the electric heating water cup, the inner part of the outer cover fixing part is of a hollow structure, and the outer cover fixing part is provided with a vent hole communicated with the steam hole; the sealing ring and the outer cover fixing part in the outer cover clamp the waterproof breathable film, the bottom of the sealing ring is horn-shaped, the upper surface of the waterproof breathable film is abutted against the horn-shaped part of the sealing ring, and the lower surface of the waterproof breathable film is abutted against the outer cover fixing part and covers the vent hole; the steam hole and the vent hole are communicated and form a lower air inlet channel, so that water in the inner container of the electric heating water cup boils for a long time to generate steam, the internal pressure of the inner container is larger than the maximum pressure borne by the sealing ring, the steam enters the lower air inlet channel and jacks up the horn part of the sealing ring, the periphery of the waterproof breathable film is jacked up by the steam, and the steam is discharged out from the joint between the waterproof breathable film and the outer cover fixing part.

The top of the outer cover fixing part is provided with a supporting surrounding baffle corresponding to the periphery of the vent hole, the inner end face of the outer cover is in contact with the supporting surrounding baffle, the inner end face of the outer cover and the supporting surrounding baffle form an intermediate channel, the intermediate channel is communicated with the air inlet hole of the outer cover, and the vent hole is communicated with the intermediate channel through a waterproof breathable film so that the lower air inlet channel is communicated with the upper air inlet channel.

The upper cover support is provided with a positioning step and a flanging, the bottom of the upper cover is provided with a positioning column, the outer cover is provided with a positioning hole and a recess, the bottom of the positioning step is in surface contact with the recess, the flanging is in edge contact with the top of the outer cover, the positioning column at the bottom of the upper cover is inserted into the positioning hole, and the bottom of the upper cover is in surface contact with the positioning step, so that the upper cover, the upper cover support and the outer cover are assembled.

Install enclosing cover mounting and inner cup in the enclosing cover, the enclosing cover mounting is equipped with the connecting hole, and the inner cup is equipped with the fixed orifices, is equipped with the mounting hole in the reference column, and mounting hole, locating hole, connecting hole, fixed orifices all align.

The bottom of the outer cover fixing part is also provided with a sealing ring, the sealing ring is provided with a groove used for being assembled with the outer cover fixing part, the outer side of the sealing ring and the inner side of the outer cover are abutted to contact, and the bottom of the sealing ring is abutted to the opening of the inner container of the electric heating water cup.

The electric heating water cup also comprises a shell assembled with the outer cover, the inner container is arranged in the shell, the shell and the outer cover are in threaded connection, and the shell is provided with full threads, so that when the outer cover is unscrewed, the rotating angle of the outer cover is more than 120 degrees, and the outer cover can be taken down only by rotating twice.

A heating body is arranged in the shell corresponding to the bottom of the inner container, and the heating body is provided with a temperature sensor; the bottom of the heating body is provided with an anti-dry heating temperature controller.

A fixing frame is also arranged in the shell and is positioned below the heating body; the bottom of the shell is provided with a bottom shell, the bottom shell is assembled with the fixing frame, a control panel is arranged between the bottom shell and the fixing frame, a power socket for connecting a power supply is arranged on the control panel, and a protective cover is arranged on the outer side of the power socket; the fixing frame is provided with a touch key assembly on one side, the heating body and the touch key assembly are electrically connected with the control panel respectively, and the bottom of the bottom shell is provided with an anti-skidding foot pad.

The utility model has the advantages as follows:

a. the cup cover assembly also comprises a waterproof breathable film for preventing liquid from flowing out, and the waterproof breathable film is arranged in the airflow channel; the electric heating water cup heats water, and the water vapor in the inner container is discharged out of the electric heating water cup through the waterproof and breathable film and the air hole of the air flow channel in sequence without opening the cup cover to discharge the water vapor,

in addition, the electric heating water cup finishes boiling water, the water in the inner container is gradually cooled, and outside air sequentially passes through the air holes and the waterproof and breathable film of the airflow channel to enter the inner container; the balance of the internal pressure and the external pressure of the cup body can be guaranteed in real time;

b. the waterproof breathable film is arranged in the air flow channel, the air flow channel is divided into an upper air inlet channel and a lower air inlet channel by the waterproof breathable film 5, and after the electric heating water cup is operated, the electric heating water cup is placed in the bag, so that even if the electric heating water cup is inclined and horizontally placed, water can be prevented from flowing out;

c. the upper surface of the waterproof breathable film is abutted against the bottom of the sealing ring (the horn part of the sealing ring), and the lower surface of the waterproof breathable film is abutted against the outer cover fixing part and covers the vent hole; if the electric control is out of control, the boiling time is too long, when the steam quantity generated by the boiling water of the inner container exceeds the steam quantity which can be passed by the waterproof breathable film and the pressure in the inner container is greater than the maximum pressure which can be borne by the sealing ring, the periphery of the waterproof breathable film below the sealing ring can be jacked up by the steam, the steam is discharged from the joint of the periphery of the waterproof breathable film and the outer cover fixing part and then is discharged through the air hole, and the problem of explosion danger caused by overlarge internal pressure is avoided;

d. the opening of shell adopts full thread, uncaps stably, if the cup goes wrong, cause the boiling time overlength, when the steam volume of inside production is greater than the discharge amount, inside can produce certain pressure, when grasping the bowl cover and rotating once, the enclosing cover is not hard up, nevertheless can not take off, inside few part steam can let out through enclosing cover lower part periphery, let inner bag internal pressure and external pressure equal, when rotating the enclosing cover once more, enclosing cover turned angle is greater than 120 degrees and just can uncap. The cup cover can not be flushed away by steam, and a large amount of steam can not scald human bodies, so that the personal safety is protected.

Drawings

Fig. 1 is a schematic cross-sectional view of an electric heating cup according to an embodiment of the present invention.

Fig. 2 is a schematic view of a cross-sectional structure of the cup lid assembly according to an embodiment of the present invention.

Fig. 3 and 4 are partially enlarged views of fig. 2.

Fig. 5 is an exploded view of the lid assembly according to an embodiment of the present invention.

Fig. 6 is a schematic view of an exploded structure of the electric heating cup after the cup cover assembly is detached.

Fig. 7 is a front view of an electric heating cup according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of an outer shell of an electric heating water cup in the prior art.

In the figure, 1 is an upper cover, 1.1 is an air hole, 1.2 is a through hole, 1.3 is a positioning column, 1.4 is a mounting hole, 2 is an upper cover bracket, 2.1 is a positioning step, 2.2 is a flanging, 3 is an outer cover, 3.1 is an air inlet hole, 3.2 is a sealing groove, 3.3 is a positioning hole, 3.4 is a recess, 3.5 is a boss, 4 is a sealing ring, 5 is a waterproof breathable film, 6 is an outer cover fixing piece, 6.1 is an air vent, 6.2 is a supporting enclosure, 6.3 is an intermediate channel, 6.4 is a connecting hole, 7 is a full thread, 8 is an air duct, 9 is a sealing ring, 9.1 is a groove, 10 is an inner cover, 10.1 is a steam hole, 10.2 is a fixing hole, 11 is an inner container, 12 is a heating body, 12.1 is a temperature sensor, 13 is a dry burning prevention, 14 is a shell, 15 is a protective cover, 16 is a fixing frame, 16.1 is a plug-in-pin post, 17 is a power socket, 18.1 is a touch key assembly, 18.1 is a, 19.1 is a fixed block, 19.2 is an installation boss, 20 is an anti-skidding foot pad, and 21 is a control panel.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 and 2, a cup cover assembly of an electric heating cup comprises an upper cover 1 and an outer cover 3, wherein an air flow channel for air exhaust or air intake is arranged in the cup cover assembly and is communicated with an inner container 11 of the electric heating cup, the upper cover 1 is provided with an air hole 1.1 for communicating external air and the air flow channel, the cup cover assembly further comprises a waterproof breathable film 5 for preventing liquid from flowing out, and the waterproof breathable film 5 is arranged in the air flow channel; the electric heating water cup heats water, and water vapor in the inner container 11 is discharged out of the electric heating water cup through the waterproof breathable film 5 and the air hole 1.1 of the air flow channel in sequence; in addition, the electric heating water cup finishes water boiling, the water in the inner container 11 is gradually cooled, and the outside air sequentially enters the inner container 11 through the air hole 1.1 and the waterproof breathable film 5 of the airflow channel.

In this embodiment, the waterproof breathable membrane 5 is an EPTFE waterproof breathable membrane, and the material is Polytetrafluoroethylene (PTFE).

Referring to fig. 2, waterproof ventilated membrane 5 divides airflow channel into last inlet channel and lower inlet channel, the bowl cover subassembly still includes upper cover support 2, upper cover 1, upper cover support 2 and enclosing cover 3 assemble mutually, have assembly gap and form ventiduct 8 between enclosing cover 3 and the

upper cover

1, 3 bottoms of enclosing cover are equipped with sealed slot 3.2, sealed slot 3.2 is equipped with sealing washer 4, the upper surface of enclosing cover 3 is equipped with inlet port 3.1, ventiduct 8, inlet port 3.1 and gas pocket 1.1 intercommunication and constitute last inlet channel.

In this embodiment, the upper cover 1 functions as a decoration cover, and the upper cover holder 2 is a plating decoration ring.

Referring to fig. 2, the cup lid assembly further comprises an outer lid fixing part 6 and an inner lid 10 which are installed in the outer lid 3, wherein the inner lid 10 is arranged at the bottom of the outer lid fixing part 6; the inner cover 10 is provided with a steam hole 10.1 communicated with the inner container 11 of the electric heating water cup, the inner part of the outer cover fixing piece 6 is of a hollow structure, and the outer cover fixing piece 6 is provided with a vent hole 6.1 communicated with the steam hole 10.1; the steam hole 10.1 is communicated with the vent hole 6.1 and forms a lower air inlet channel.

In the present embodiment, the material of the inner lid 10 is stainless steel. The inner cover 10 is provided with three steam holes 10.1, and the three steam holes 10.1 are arranged in a triangular distribution.

When water is boiled, steam generated when water in the inner container 11 of the electric heating water cup is boiled is upwards discharged through the steam holes 10.1 on the stainless steel inner cover 10, the vent holes 6.1 in the middle of the outer cover fixing part 6, the waterproof breathable film 5 and the air holes 1.1; after the water is boiled, the electric heating water cup can be filled into a gift bag, and water cannot flow out due to the function of the waterproof and breathable film 5, so that the electric heating water cup is suitable for being used by people who go out to travel or a child to drink milk powder at any time when a mother is out; if the water back of boiling, do not turn round 3 water of outer cover always, the hot water of electric heat drinking cup's inner bag 11 can slowly cool down, because waterproof ventilated membrane 5 can see through vapor, during waterproof ventilated membrane 5 gets into inner bag 11 can be seen through to outside air, can not produce that the pressure in the cup reduces, cup external pressure is big, and the dynamics is big when causing uncapping problem, and is difficult to uncap.

Referring to fig. 4, the sealing ring 4 and the outer cover fixing part 6 in the outer cover 3 clamp the waterproof breathable film 5, the upper surface of the waterproof breathable film 5 is abutted against the bottom of the sealing ring 4, and the lower surface of the waterproof breathable film 5 is abutted against the outer cover fixing part 6 and covers the vent hole 6.1.

In the embodiment, the bottom of the sealing ring 4 is horn-shaped, so that the contact area of the bottom of the sealing ring 4 is reduced, the pressure of the sealing ring 4 on the waterproof breathable film 5 is reduced, the waterproof breathable film 5 has a bulged space, the upper surface of the waterproof breathable film 5 abuts against the horn part of the sealing ring 4, and the lower surface of the waterproof breathable film 5 abuts against the outer cover fixing part 6 and covers the vent hole 6.1; the steam hole (10.1) and the vent hole (6.1) are communicated and form a lower air inlet channel, so that water in the inner container 11 of the electric heating water cup boils for a long time to generate steam, the internal pressure of the inner container 11 is larger than the maximum pressure borne by the sealing ring 4, the steam enters the lower air inlet channel and jacks up the horn part of the sealing ring 4, the periphery of the waterproof breathable film 5 is jacked up by the steam, and the steam is discharged to the joint between the waterproof breathable film 5 and the outer cover fixing part 6.

In this embodiment, the material of the sealing ring 4 is silica gel.

If automatically controlled is out of control, the boiling time overlength, when the steam volume that the boiling water of inner bag 11 produced exceeded the steam volume that waterproof ventilated membrane 5 can pass through, when the inside pressure of inner bag 11 was greater than the maximum pressure that silica gel (sealing washer 4 promptly) can bear, waterproof ventilated membrane 5 below the sealing washer 4 is peripheral can be by steam jack-up, the periphery of the waterproof ventilated membrane of EPTFE has steam to let out with 6 laminating departments of enclosing cover mounting, rethread gas pocket 1.1 discharges, guarantee can not appear because of internal pressure is too big, cause the dangerous problem of explosion.

Referring to fig. 5, a supporting enclosure 6.2 is arranged at the top of the outer cover fixing part 6 corresponding to the periphery of the vent hole 6.1, the inner end surface of the outer cover 3 is in contact with the supporting enclosure 6.2 and encloses a middle channel 6.3, the middle channel 6.3 is communicated with an air inlet hole 3.1 of the outer cover 3, and the vent hole 6.1 is communicated with the middle channel 6.3 through a waterproof breathable film 5 so as to communicate the lower air inlet channel with the upper air inlet channel.

Referring to fig. 5, the upper cover bracket 2 is provided with a positioning step 2.1 and a flanging 2.2, the bottom of the upper cover 1 is provided with a positioning column 1.3, the outer cover 3 is provided with a positioning hole 3.3 and a recess 3.4, the bottom of the positioning step 2.1 is in surface contact with the recess 3.4, the flanging 2.2 is in top edge contact with the outer cover 3, the positioning column 1.3 at the bottom of the upper cover 1 is inserted into the positioning hole 3.3, and the bottom of the upper cover 1 is in surface contact with the positioning step 2.1, so that the upper cover 1, the upper cover bracket 2 and the outer cover 3 are assembled.

In this embodiment, the outer cover 3 is provided with a boss 3.5 near the air inlet hole 3.1, the upper cover 1 is provided with a through hole 1.2 corresponding to the boss 3.5, and a round hole aligning with the through hole 1.2 is arranged in the boss 3.5.

Referring to fig. 2 and 5, an outer cover fixing piece 6 and an inner cover 10 are installed in the outer cover 3, the outer cover fixing piece 6 is provided with a connecting hole 6.4, the inner cover 10 is provided with a fixing hole 10.2, an installation hole 1.4 is formed in the positioning column 1.3, and the installation hole 1.4, the positioning hole 3.3, the connecting hole 6.4 and the fixing hole 10.2 are aligned. Screws are mounted in the fastening holes 10.2, inserted into the mounting holes 1.4 and screwed together.

Referring to fig. 3 and 5, the bottom of the outer cover fixing member 6 is further provided with a sealing ring 9, and the sealing ring 9 is provided with a groove 9.1 for assembling with the outer cover fixing member 6. The enclosing cover mounting 6 is provided with two insertion ribs arranged at intervals, a clamping groove is formed between the two insertion ribs, the sealing ring 9 is partially embedded into the clamping groove, and one insertion rib in the enclosing cover mounting 6 is embedded into the groove 9.1.

Referring to fig. 1, the outer side of the sealing ring 9 is in abutting contact with the inner side of the outer cover 3, and the bottom of the sealing ring 9 abuts against the opening of the inner container 11 of the electric heating water cup.

Referring to fig. 1 and 6, the electric heating cup further comprises a shell 14 assembled with the outer cover 3, the inner container 11 is installed in the shell 14, the shell 14 and the outer cover 3 are in threaded connection, and the shell 14 is provided with full threads 7, so that when the outer cover 3 is unscrewed, the outer cover 3 can be removed after rotating at least twice, and the rotating angle of the outer cover 3 is more than 120 °.

In the present embodiment, the opening of the housing 14 is a full thread 7, not a half thread or a partial thread. When the outer cover 3 is loosened by twisting, the hand is when grasping the outer cover 3 to rotate, the angle of rotating the outer cover 3 can be greater than 120 degrees, the outer cover 3 needs to be rotated again, just the outer cover 3 can be taken down (the cup cover can be taken down by rotating the cup cover twice at least), if the cup has a problem, the boiling time is too long, the steam amount generated inside is greater than the discharge amount, the inside can generate certain pressure, when grasping the cup cover by hand and rotating once, the outer cover 3 is not flexible, but can not be taken away, small part of steam inside can be discharged through the periphery of the lower part of the outer cover 3, the internal pressure of the inner container 11 is equal to the external pressure, when rotating the outer cover 3 again, the rotating angle of the outer cover 3. The cup cover can not be flushed away by steam, and a large amount of steam can not scald human bodies, so that the personal safety is protected.

Referring to fig. 1 and 6, a heating body 12 is arranged in the shell 14 corresponding to the bottom of the liner 11, and a temperature sensor 12.1 is installed on the heating body 12; the bottom of the heating body 12 is provided with an anti-dry heating temperature controller 13.

Referring to fig. 1 and 6, a fixing frame 16 is further disposed in the housing 14, and the fixing frame 16 is located below the heating body 12; a bottom shell 19 is arranged at the bottom of the shell 14, the bottom shell 19 is assembled with the fixed frame 16, a control panel 21 is arranged between the bottom shell 19 and the fixed frame 16, a power socket 17 for connecting a power supply is arranged on the control panel 21, and a protective cover 15 is arranged on the outer side of the power socket 17; a touch key assembly 18 is arranged on one side of the fixing frame 16, the heating body 12 and the touch key assembly 18 are respectively and electrically connected with a control panel 21, and an anti-skid foot pad 20 is arranged at the bottom of the bottom shell 19.

In the present embodiment, the housing 14 is provided with a protective cover opening corresponding to the protective cover 15 to mount the protective cover 15.

Referring to fig. 7, the housing 14 is provided with an activation key corresponding to the outside of the touch key assembly 18. The touch key assembly 18 comprises a touch key circuit board 18.1, the touch key circuit board 18.1 being provided with a spring 18.2.

Referring to fig. 7, in the present embodiment, the bottom case 19 is provided with a fixing block 19.1, the fixing block 19.1 is provided with a card slot, and the touch key circuit board 18.1 is mounted on the card slot of the fixing block 19.1.

In this embodiment, the bottom case 19 is provided with a mounting boss 19.2, a mounting hole is provided in the mounting boss 19.2, the fixing frame 16 is provided with a plug-in post 16.1, the plug-in post 16.1 is inserted into the mounting hole in the mounting boss 19.2, and the anti-slip foot pad 20 is embedded into the bottom of the mounting boss 19.2.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a bowl cover subassembly of electric heat drinking cup, includes upper cover (1) and enclosing cover (3), is equipped with in the bowl cover subassembly and is used for the air flow channel that exhausts or admit air, and inner bag (11) the intercommunication of air flow channel and electric heat drinking cup, its characterized in that: the upper cover (1) is provided with an air hole (1.1) for communicating the outside air and the air flow channel, the cup cover assembly also comprises a waterproof breathable film (5) for preventing liquid from flowing out, and the waterproof breathable film (5) is arranged in the air flow channel; the electric heating water cup heats water, and water vapor in the inner container (11) is discharged out of the electric heating water cup through the waterproof breathable film (5) and the air hole (1.1) of the air flow channel in sequence; in addition, the electric heating water cup finishes water boiling, the water in the inner container (11) is gradually cooled, and the outside air sequentially enters the inner container (11) through the air hole (1.1) and the waterproof and breathable film (5) of the air flow channel.

2. The cup cover assembly of the electric heating cup as claimed in claim 1, wherein: waterproof ventilated membrane (5) divide air current channel into last inlet channel and lower inlet channel, the bowl cover subassembly still includes upper cover support (2), upper cover (1), upper cover support (2) and enclosing cover (3) assemble mutually, have assembly gap and form ventiduct (8) between enclosing cover (3) and upper cover (1), enclosing cover (3) bottom is equipped with sealed slot (3.2), sealed slot (3.2) are equipped with sealing washer (4), the upper surface of enclosing cover (3) is equipped with inlet port (3.1), ventiduct (8), inlet port (3.1) and gas pocket (1.1) intercommunication and constitute last inlet channel.

3. The cup cover assembly of the electric heating cup as claimed in claim 2, characterized in that: the cup cover assembly also comprises an outer cover fixing part (6) and an inner cover (10) which are arranged in the outer cover (3), and the inner cover (10) is arranged at the bottom of the outer cover fixing part (6); the inner cover (10) is provided with a steam hole (10.1) communicated with the inner container (11) of the electric heating water cup, the inner part of the outer cover fixing piece (6) is of a hollow structure, and the outer cover fixing piece (6) is provided with a vent hole (6.1) communicated with the steam hole (10.1); the sealing ring (4) and the outer cover fixing part (6) in the outer cover (3) clamp the waterproof breathable film (5), the bottom of the sealing ring (4) is horn-shaped, the upper surface of the waterproof breathable film (5) abuts against the horn part of the sealing ring (4), and the lower surface of the waterproof breathable film (5) abuts against the outer cover fixing part (6) and covers the vent hole (6.1); the steam hole (10.1) is communicated with the air vent (6.1) to form a lower air inlet channel, so that water in the inner container (11) of the electric heating water cup is boiled for a long time to generate steam, the internal pressure of the inner container (11) is higher than the maximum pressure borne by the sealing ring (4), the steam enters the lower air inlet channel and jacks up the horn part of the sealing ring (4), the periphery of the waterproof breathable film (5) is jacked up by the steam, and the steam is discharged out from the joint between the waterproof breathable film (5) and the outer cover fixing part (6).

4. The cup cover assembly of the electric heating cup as claimed in claim 3, characterized in that: the top of the outer cover fixing part (6) is provided with a supporting surrounding baffle (6.2) corresponding to the periphery of the vent hole (6.1), the inner end face of the outer cover (3) is in contact with the supporting surrounding baffle (6.2) and surrounds a synthetic intermediate channel (6.3), the intermediate channel (6.3) is communicated with the air inlet hole (3.1) of the outer cover (3), and the vent hole (6.1) is communicated with the intermediate channel (6.3) through a waterproof breathable film (5) so that the lower air inlet channel is communicated with the upper air inlet channel.

5. The cup cover assembly of the electric heating cup as claimed in claim 3, characterized in that: upper cover support (2) are equipped with location step (2.1) and turn-ups (2.2), upper cover (1) bottom is equipped with reference column (1.3), enclosing cover (3) are equipped with locating hole (3.3) and sunken (3.4), location step (2.1) bottom and sunken (3.4) surface contact, turn-ups (2.2) and enclosing cover (3) top edge contact, locating hole (3.3) are inserted in reference column (1.3) of upper cover (1) bottom, and upper cover (1) bottom and location step (2.1) surface contact, so that upper cover (1), upper cover support (2) and enclosing cover (3) assemble mutually.

6. The cup cover assembly of the electric heating cup as claimed in claim 5, wherein: install enclosing cover mounting (6) and inner cup (10) in enclosing cover (3), enclosing cover mounting (6) are equipped with connecting hole (6.4), and inner cup (10) are equipped with fixed orifices (10.2), are equipped with mounting hole (1.4) in reference column (1.3), and mounting hole (1.4), locating hole (3.3), connecting hole (6.4), fixed orifices (10.2) all align.

7. The cup cover assembly of the electric heating cup as claimed in claim 6, wherein: the bottom of the outer cover fixing part (6) is also provided with a sealing ring (9), the sealing ring (9) is provided with a groove (9.1) used for being assembled with the outer cover fixing part (6), the outer side of the sealing ring (9) is abutted against the inner side of the outer cover (3) to be contacted, and the bottom of the sealing ring (9) is abutted against the opening of the inner container (11) of the electric heating water cup.

8. The cover assembly of the electric heating water cup according to any one of claims 1 to 7, characterized in that: the electric heating water cup further comprises a shell (14) assembled with the outer cover (3), the inner container (11) is installed in the shell (14), the shell (14) and the outer cover (3) are in threaded connection, and the shell (14) is provided with full threads (7), so that when the outer cover (3) is turned on, the rotation angle of the outer cover (3) is larger than 120 degrees, and the outer cover (3) can be taken down only by rotating twice at least.

9. The cup cover assembly of the electric heating cup as claimed in claim 8, wherein: a heating body (12) is arranged in the shell (14) corresponding to the bottom of the inner container (11), and a temperature sensor (12.1) is arranged on the heating body (12); the bottom of the heating body (12) is provided with an anti-dry heating temperature controller (13).

10. The cup cover assembly of the electric heating cup as claimed in claim 9, wherein: a fixing frame (16) is also arranged in the shell (14), and the fixing frame (16) is positioned below the heating body (12); a bottom shell (19) is arranged at the bottom of the shell (14), the bottom shell (19) is assembled with the fixed frame (16), a control panel (21) is arranged between the bottom shell and the fixed frame, a power socket (17) for connecting a power supply is arranged on the control panel (21), and a protective cover (15) is arranged on the outer side of the power socket (17); a touch key assembly (18) is arranged on one side of the fixing frame (16), the heating body (12) and the touch key assembly (18) are respectively and electrically connected with the control panel (21), and an anti-skidding foot pad (20) is arranged at the bottom of the bottom shell (19).