CN218588821U

CN218588821U - Electric kettle

Info

Publication number: CN218588821U
Application number: CN202221972202.9U
Authority: CN
Inventors: 朱泽春; 明进武; 郭红伟
Original assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Current assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2023-03-10
Anticipated expiration: 2032-07-28

Abstract

The application discloses insulating pot, including the tea leak subassembly and be used for extracting the interior gaseous air exhaust device of tea leak subassembly, be provided with the liquid level control subassembly between tea leak subassembly and air exhaust device, through the ascending reciprocating motion of liquid level control subassembly along insulating pot axis direction, the liquid level control subassembly is connected with the pot lid of insulating pot, and wherein, the liquid level control subassembly includes: the shell is fixedly connected with the kettle cover, and liquid in the electric kettle enters the shell; and the floater is arranged in the shell and is in sliding connection with the shell, and the liquid level control assembly is communicated or closed with the external atmosphere through ascending or descending of the floater. According to the electric kettle, when the liquid level in the tea strainer component rises, the liquid level control component rises to prevent the liquid level from rising; when the liquid level drops, the liquid level control assembly drops. The liquid level control assembly rises or falls according to the change of the liquid level height, so that liquid can be prevented from entering the air exhaust device, and the service life of the air exhaust device is prolonged.

Description

Electric kettle

Technical Field

The application relates to the field of small household appliances, in particular to an electric kettle.

Background

When people use the electric kettle to soak the to-be-brewed object, in order to enable the brewed tea to reach the required concentration, the to-be-brewed object is brewed by a method of absorbing gas in the tea leakage component and controlling the pressure difference between the tea leakage component and the external atmosphere.

When absorbing the inside gas of tea building subassembly, inside liquid can enter into the air exhaust device who is used for absorbing gas at this in-process, influence air exhaust device's life. In the prior art, like the chinese utility model patent CN215914158U, the filter assembly is arranged at the vent of the tea strainer assembly to prevent the foreign matter from entering the inside of the air extractor. The filter assembly can only block the fixed substance with larger diameter of the object to be brewed, and if the liquid level in the tea strainer assembly is too high, the liquid can not be blocked to enter the air extractor, and the tea strainer assembly can still be damaged.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application discloses an electric kettle, through set up the liquid level control subassembly between tea strainer subassembly and air exhaust device, prevent that liquid from entering into air exhaust device in, guarantee air exhaust device normal operating, the liquid level control subassembly prevents through mechanical mode that liquid from entering into air exhaust device simultaneously, improves the accuracy to liquid height control.

The utility model provides an electric kettle, including the tea leak subassembly and be used for extracting the interior gaseous air exhaust device of tea leak subassembly the tea leak subassembly with be provided with the liquid level control subassembly between the air exhaust device, the liquid level control subassembly is located electric kettle's kettle is covered, wherein, the liquid level control subassembly includes:

the shell is fixedly connected with the kettle cover;

and the floater is arranged in the shell and is in sliding connection with the shell, and the liquid level control assembly is communicated or closed with the external atmosphere by the ascending or descending of the floater.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the pot lid includes mutual fixed connection's upper cover and lower cover, the upper cover with form between the lower cover and put the thing chamber, at least part setting of liquid level control subassembly is in put the thing intracavity.

Optionally, a sliding assembly for allowing the float to perform reciprocating movement is arranged on the shell, the float comprises a sliding rod and a buoyancy portion in contact with liquid, at least one sliding block is arranged on the sliding rod, and a sliding way matched with the sliding block is arranged at the sliding assembly.

Optionally, a limiting table is arranged on the sliding assembly, a resistance increasing strip corresponding to the limiting table is arranged on the sliding rod, and the sliding rod is limited to move towards the lower cover through the mutual matching between the limiting table and the resistance increasing strip.

Optionally, the resistance increasing strips are arranged in a long strip shape, and the resistance increasing strips are symmetrically arranged.

Optionally, the buoyancy portion extends in a radial direction of the electric kettle.

Optionally, the buoyancy part is provided as a hollow structure.

Optionally, a blocking plate is arranged in the liquid level control assembly, and the float is limited inside the blocking plate.

Optionally, the blocking plate and the housing are arranged at an interval, a second vent hole is arranged between the blocking plate and the housing, and the second vent hole is used for communicating the tea strainer assembly with the inside of the housing.

According to the electric kettle, when the liquid level in the tea strainer component rises, the liquid level control component rises to prevent the liquid level from rising; when the liquid level drops, the liquid level control assembly drops. The liquid level control assembly rises or falls according to the change of the liquid level height, so that liquid can be prevented from entering the air exhaust device, and the service life of the air exhaust device is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of an electric kettle in an embodiment of the present application;

FIG. 2 is an enlarged view of the portion A in FIG. 1;

FIG. 3 is a schematic structural diagram of a housing according to an embodiment of the present application;

FIG. 4 is a schematic view of an electric kettle according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of a third sealing device according to an embodiment of the present disclosure;

fig. 6 is an exploded view of the tea caddy assembly and the lid according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of an exemplary gas circuit coupling device according to the present disclosure;

FIG. 8 is a schematic view of an alternative embodiment of the gas circuit coupling device;

FIG. 9 is a schematic view of an electric kettle according to an embodiment of the present application;

FIG. 10 is a schematic view of a handle according to an embodiment of the present application;

FIG. 11 is a schematic view of the structure of the float according to an embodiment of the present application;

FIG. 12 is a schematic structural diagram of an upper cover according to an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a lower cover according to an embodiment of the present application;

FIG. 14 is a schematic view of a tea caddy assembly according to an embodiment of the present application;

FIG. 15 is a schematic view of a lid according to an embodiment of the present application;

FIG. 16 is a schematic view of the construction of the tea caddy assembly and the lid according to an embodiment of the present application;

fig. 17 is another schematic view of the float according to an embodiment of the present application.

The reference numerals in the figures are illustrated as follows:

100. an electric kettle;

200. a tea strainer assembly; 201. a filtration vessel; 202. a conveying member;

300. a liquid level control assembly; 301. a second sealing device; 302. a limiting groove; 303. a float; 304. a moving part; 305. A housing; 306. a ventilation channel; 308. supporting a tube; 309. a slide bar; 310. a buoyancy section; 311. a slider; 312. a sliding groove; 313. a slideway; 314. a limiting table; 315. a barrier plate; 316. a second vent hole; 317. a first space; 318. a second space; 319. a first sealing device; 320. a first vent hole;

400. a pot lid; 401. an upper cover; 402. a lower cover; 403. a storage cavity; 405. an accommodating chamber; 406. a bar-shaped protrusion; 407. A block-shaped bulge; 408. filtering with a screen;

500. a handle; 501. a first three-way valve; 502. a second three-way valve; 503. a vertical portion; 504. a horizontal portion; 505. a U-shaped piece; 506. a rib position component; 507. a cross card support; 508. a chuck; 509. an air extraction device; 510. a pipeline on-off device; 511. A bump; 512. a groove; 513. a cross bar; 514. a vertical rod; 515. a notch;

600. a first gas passage; 601. a second gas passage; 602. a first gas line; 603. a second gas line; 604. A third gas line; 605. a fourth gas line;

700. a gas circuit coupling device; 701. pressing a plate; 702. connecting columns; 703. connecting a pipeline; 704. a fixing hole;

800. a third sealing device; 801. an annular body; 802. a first annular member; 803. a second ring-shaped member; 804. a third ring-shaped member; 805. a first seal strip; 806. a second seal strip; 807. a third seal strip; 808. a water baffle; 809. a water outlet;

900. and (5) preparing the product to be brewed.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, in daily life, a person fills the electric kettle 100 with the tea caddy assembly 200 and obtains a tea drink required by the person by soaking the to-be-brewed object 900 in the tea caddy assembly 200 with liquid. However, if the liquid soaks the object 900 to be brewed for a long time, the concentration of the brewed tea is high, and the taste is affected. Therefore, in the prior art, through the air extractor 509 arranged in the electric kettle 100, when the object 900 to be brewed needs to be soaked in liquid, the air extractor 509 extracts air from the interior of the tea strainer assembly 200, so that the interior of the tea strainer assembly 200 is at a negative pressure, and at the moment, the liquid in the inner container of the electric kettle 100 enters the interior of the tea strainer assembly 200 to soak the object 900 to be brewed; when the soaking is finished, the air pumping device 509 inflates air into the tea leakage component 200, so that the pressure inside the tea leakage component 200 is normal atmospheric pressure, and liquid can flow back into the inner container of the electric kettle 100 from the inside of the tea leakage component 200, namely the tea drinking concentration required by people is obtained. In order to prevent liquid from entering the inside of the suction device 509 and damaging the suction device 509 in the process, an anti-overflow electrode is usually disposed at the kettle lid 400, and when the liquid level reaches the anti-overflow electrode, the operation of the suction device 509 is stopped. However, the long-term operation of the anti-overflow electrode in a humid environment will affect the service life of the electrode, and when a large amount of water vapor is present near the anti-overflow electrode, the anti-overflow electrode may be touched by mistake, so that the air extractor 509 stops operating. Therefore, this application prevents liquid from entering into the air exhaust device 509 through setting up mechanical liquid level control assembly 300, can enough accurate control liquid water level, also can improve life.

An electric kettle 100, including the tea that is used for splendid attire to wait to brew 900 leaks the subassembly 200, and be used for extracting the gaseous suction device 509 in the tea leaks the subassembly 200, be provided with the liquid level control subassembly 300 between suction device 509 and the tea leaks the subassembly 200, the liquid level control subassembly 300 includes: the air-permeable passage 306 and the accommodation chamber 405 communicating with each other; the air extracting device 509 extracts air in the tea leakage component 200 so as to drive liquid in the inner container of the electric kettle 100 to enter the tea leakage component 200 and the accommodating cavity 405 in sequence; the floater 303 is arranged in the accommodating cavity 405, the floater 303 blocks the air-permeable channel 306, and when liquid enters the accommodating cavity 405, the floater 303 is pushed to open the air-permeable channel 306.

In this embodiment, the tea strainer assembly 200 includes a filtering container 201 for containing the object 900 to be brewed, and a conveying member 202 for communicating the filtering container 201 with the inner container of the electric kettle 100. The filtering container 201 is connected with the kettle cover 400, when the object 900 to be brewed is not soaked, a proper amount of liquid is added into the inner container, the liquid height is not higher than the height of the object 900 to be brewed, and cold extraction of the object 900 to be brewed by low-temperature liquid is avoided. Be provided with heating device in insulating pot 100, heat liquid to the set temperature (for example with water heating to boiling temperature) through heating device, or heating device heats liquid to the set time, when liquid heating to suitable temperature or reach the set time, heating device stops to heat liquid, control system gives instructions to air exhaust 509 simultaneously, air exhaust 509 begins work, take out the gas in the tea leaks subassembly 200 outside the tea leaks subassembly 200, thereby make the atmospheric pressure in the tea leaks subassembly 200 be less than the inner bag atmospheric pressure, under the effect of pressure differential, liquid in the inner bag is extruded in the tea leaks subassembly 200, do not cross gradually and wait to dash preparation 900. When the air extracting device 509 extracts the air in the tea leakage assembly 200 for a certain time, the air extracting device 509 stops working, and at the moment, the liquid soaks the object 900 to be brewed, so that the tea needed by people is made. When the tea reaches a certain concentration or is soaked for a certain time, the air-extracting device 509 inflates air into the tea-leaking component 200, and the pressure in the tea-leaking component 200, which is originally negative pressure, gradually rises until the pressure is the same as or greater than the pressure in the inner container. At this time, the liquid gradually flows from the tea strainer assembly 200 to the inner container. The process can reach the tea concentration required by people once or repeatedly.

In order to prevent the liquid from entering the air extracting device 509 and affecting the normal working state of the air extracting device 509 during the process of extracting the air in the tea leakage assembly 200 by the air extracting device 509, the liquid level control assembly 300 is arranged between the air extracting device 509 and the tea leakage assembly 200. When liquid begins to rise in the tea strainer assembly 200, the liquid level control assembly 300 is only communicated with the tea strainer assembly 200, as the liquid gradually rises in the filtering container 201, part of the liquid enters the liquid level control assembly 300, the liquid generates buoyancy on the floater 303, when the liquid in the liquid level control assembly 300 is enough, the floater 303 moves when the buoyancy is enough, at the moment, the liquid level control assembly 300 is also communicated with the external atmosphere, the circulation speed of gas entering the liquid level control assembly 300 is higher than the speed of pumping out the liquid level control assembly 300, the pressure in the tea strainer assembly 200 gradually rises, the rising height of the liquid in the liquid level control assembly 300 is gradually reduced until the liquid stops, and therefore the phenomenon that the liquid rises too high and enters the air pumping device 509 is avoided. When the air entering the liquid level control assembly 300 is gradually increased, the pressure in the tea strainer assembly 200 and the liquid level control assembly 300 is gradually increased, so that the pressure difference between the tea strainer assembly 200 and the inner container is reduced, the height of the liquid in the liquid level control assembly 300 is gradually reduced, the buoyancy of the liquid to the floater 303 is gradually reduced, and the liquid level control assembly 300 moves to block the communication between the liquid level control assembly and the external atmosphere. The reciprocation of the float 303 may occur one or more times during the extraction of gas from the tea leak assembly 200 by the extraction means 509. Or the air extractor 509 is in a normally communicated state with the external atmosphere in the process of extracting the air in the tea strainer assembly 200, at the moment, the speed of extracting the air by the air extractor 509 is the same as the entering speed of the external atmosphere into the liquid level control assembly 300, the liquid is located at a height and does not change, when the air extractor 509 stops extracting the air, the atmospheric pressure in the liquid level control assembly 300 is increased, the liquid level height is reduced, the buoyancy of the liquid to the floater 303 is reduced, the floater 303 moves to block the communication between the liquid and the external atmosphere, at the moment, the liquid level is not changed after being reduced to a height, and the object to be brewed 900 is soaked.

Communication and sealing between the level control assembly 300 and the outside atmosphere is achieved by movement of the float 303. The liquid level control assembly 300 is disposed on the kettle lid 400 of the electric kettle 100, wherein the liquid level control assembly 300 comprises: the outer shell 305 is fixedly connected with the kettle cover 400, and liquid in the electric kettle 100 enters the inner part of the outer shell 305; and a float 303 disposed inside the housing 305 and slidably connected to the housing 305, wherein the float 303 is raised or lowered to communicate or close the fluid level control assembly 300 with the outside atmosphere. The liquid level control assembly 300 is arranged on the pot cover 400, so that the liquid level height of liquid in the tea strainer assembly 200 can be improved, more liquid can soak the object 900 to be brewed, and the soaking efficiency is improved. In order to reduce the gas exchange between the external gas and the inside of the liquid level control assembly 300 through the outer shell 305, the outer shell 305 and the kettle lid 400 are hermetically connected, and the outer shell 305 is made of a material which is not easy to be ventilated. When liquid flows over the filtering container 201 into the liquid level control assembly 300, the rising height of the liquid needs to be rapidly stopped, that is, the float 303 can rapidly rise to communicate the liquid level control assembly 300 with the outside air, so that the pressure in the liquid level control assembly 300 stops dropping. Therefore, the volume of the accommodating cavity 405 defined by the housing 305 is much smaller than the overall volume of the kettle lid 400, and the volume of the float 303 disposed in the housing 305 is smaller, so that when the float 303 is subjected to smaller buoyancy, it will rise upwards to allow outside air to enter the liquid level control assembly 300. Because the volume of the accommodating cavity 405 is small, a pressure difference can be formed between the tea strainer assembly 200 and the inner container in a short time, so that liquid can rise in the tea strainer assembly 200; meanwhile, the pressure difference between the two can be reduced in a short time, so that the liquid stops rising in the tea strainer assembly 200 or the liquid level control assembly 300 and is prevented from entering the air extractor 509. In the arrangement of the float 303, to ensure that the liquid can move the float 303, the density of the float 303 is less than the density of the liquid (e.g., when the liquid is water, the density of the float 303 is less than the density of the water). Because of the sliding fit between the float 303 and the housing 305, the mating portions thereof are in smooth contact to reduce friction therebetween, facilitating movement of the float 303. Before the air extracting device 509 extracts the air in the tea leakage component 200, the gravity of the floater 303 is greater than the friction force, the floater 303 is in sealing connection with the liquid level control component 300, and the liquid level control component 300 is not communicated with the external atmosphere; when the air extractor 509 extracts the air in the tea leakage component 200, the liquid enters the liquid level control component 300 and generates buoyancy on the floater 303, when the buoyancy is larger than the sum of the gravity and the friction of the floater 303, the floater 303 rises, the liquid level control component 300 is communicated with the external atmosphere, the pressure in the tea leakage component 200 stops falling, and the liquid level does not rise any more; when the air extractor 509 inflates air into the tea leakage component 200, the pressure difference between the tea leakage component 200 and the inner container is gradually reduced, the liquid height is also gradually reduced, the buoyancy of the liquid to the liquid level control component 300 is also gradually reduced at the moment, the floater 303 has a tendency of moving downwards, when the sum of the buoyancy and the friction is larger than the gravity of the floater 303, the floater 303 is always in an open state, when the sum of the buoyancy and the friction is smaller than the gravity of the floater 303, the floater 303 begins to descend until the space between the floater 303 and the liquid level control component 300 is sealed, and the air extractor 509 continuously inflates air into the tea leakage component 200 until the pressure between the tea leakage component 200 and the inner container is the same.

In order to allow the float 303 to smoothly reciprocate on the housing 305, the housing 305 is provided with a sliding unit for reciprocating the float 303. The sliding assembly is formed by the housing 305 and the float 303 cooperating with each other, and in one embodiment, the sliding assembly is disposed along the axial direction of the electric kettle 100 or is disposed obliquely with a certain angle with the axial direction of the electric kettle 100. When the sliding assembly is arranged along the axial direction of the electric kettle 100, the gravity of the liquid level control assembly 300, the buoyancy of the liquid to the liquid level control assembly 300 and the friction between the float 303 and the shell 305 are on the same horizontal line; when the sliding component is obliquely arranged at a certain angle along the axial direction of the electric kettle 100, the direction of the friction force between the floater 303 and the shell 305 extends along the oblique direction, when the floater 303 descends to close the communication between the liquid level control component 300 and the external atmosphere, the floater 303 can not be closed with the shell 305 due to the friction force along the oblique direction, so that the pressure difference between the tea leakage component 200 and the inner container is continuously reduced, the liquid level height of the liquid in the tea leakage component 200 also descends, and the effect of soaking the to-be-brewed object 900 cannot be achieved. Therefore, as a preferred scheme, the sliding component is arranged along the axial direction of the electric kettle 100.

In order to reduce the friction force inside the sliding component, the sliding component comprises: a support pipe 308 provided on the housing 305; a moving portion 304 provided on the float 303 to interact with the support tube 308; the moving part 304 slides in an air-permeable passage 306 surrounded by a support tube 308. Because the volume of the accommodating cavity 405 is small, less liquid enters the accommodating cavity 405, and in order that the float 303 can rise under the effect of small buoyancy, the contact between the supporting tube 308 and the moving part 304 is smooth contact, and the friction force between the two is reduced. Or a gap exists between the support tube 308 and the moving part 304, so that the friction force between the two is reduced. No matter the support pipe 308 and the moving part 304 are in smooth contact or arranged at intervals, when the floater 303 ascends, external air can enter the liquid level control assembly 300 through the opening of the air-permeable channel 306, the pressure difference between the tea leakage assembly 200 and the inner container is reduced, and the ascending height of liquid is reduced. The middle section of the floater 303 slides in the ventilation channel 306, the two ends of the floater 303 are alternatively abutted with the support tube 308, and when the floater 303 rises to a certain height, the lower end of the floater 303 is abutted with the support tube 308 to limit the floater 303 to continuously rise; when the float 303 descends to a certain height, the upper end of the float 303 abuts against the support pipe 308, limiting the float 303 from further descending.

In the arrangement of the support tube 308, the support tube 308 and the housing 305 may be vertically arranged or have a certain inclination angle, but during the reciprocating movement of the float 303, liquid may generate adhesion force in the gap between the support tube 308 and the moving portion 304, and the adhesion force may generate a blocking effect on the movement direction of the float 303, so that the float 303 cannot normally descend, and the liquid level control assembly 300 is always communicated with the external atmosphere. Therefore, the support pipe 308 is disposed along the axial direction of the electric kettle 100, extending in a direction close to the lower cover 402 or extending in a direction close to the upper cover 401. When the supporting tube 308 is arranged along the axial direction of the electric kettle 100, the gravity direction of the float 303 matched with the supporting tube 308 is parallel to the axial direction of the electric kettle 100, so that the whole gravity of the float 303 can be used for offsetting the effects of adhesion force and other forces on the float 303, and the float 303 can descend to a certain height to close the communication with the external atmosphere. The accommodating cavity 405 is formed by buckling the upper cover 401 and the lower cover 402, if the accommodating cavity 405 is too large in volume, the accommodating cavity can occupy the volume of the filtering container 201, so that the volume of liquid for soaking the to-be-brewed object 900 is reduced, and the soaking time is prolonged; or the volume of the pot lid 400 is increased, which makes the pot lid 400 heavy and inconvenient for the user to lift and clean. Therefore, as a preferred option, the support tube 308 is extended close to the lower cover 402, and the float 303 is located in the accommodation chamber 405. Making the arrangement between the float 303 and the housing 305 more compact and reducing the path of movement of the float 303.

As shown in FIGS. 1 and 17, the fluid level control assembly 300 is provided in a more compact and less bulky configuration for protecting the fluid level control assembly 300 and for better protection against fluid entering the gas evacuation device 509, as previously described. The volume of liquid entering the liquid level control assembly 300 is small, so in order to increase the buoyancy of the liquid to the float 303, the float 303 comprises a sliding rod 309 and a buoyancy portion 310 in contact with the liquid, the buoyancy of the liquid is transferred to the sliding rod 309 through the buoyancy portion 310, thereby moving the sliding rod 309 within the air-permeable channel 306. The sectional area of the buoyancy portion 310 is larger than that of the slide bar 309, and the buoyancy of the liquid with respect to the float 303 can be increased by increasing the contact area between the liquid and the float 303 by the buoyancy portion 310, so that the float 303 can rise faster, and the liquid is prevented from entering the air-extracting device 509. The sliding rod 309 and the buoyancy part 310 are of a split structure or an integral structure, when the sliding rod 309 and the buoyancy part 310 are arranged in a split mode, the sliding rod 309 and the buoyancy part 310 are fixed on the shell 305 through screws matched in a spiral mode, the sliding rod 309 and the buoyancy part 310 can be detached by rotating the screws, and therefore the interior of the liquid level control assembly 300 is cleaned, and sanitation and safety are guaranteed; when the slide bar 309 and the buoyancy 310 are integrally provided, as shown in fig. 17, and the second sealing means 301 is connected to the housing 305, the buoyancy can be more quickly transmitted to the slide bar 309, and the loss of energy during the transmission process can be reduced. The second sealing device 301 is arranged at the joint of the sliding rod 309 and the outer shell 305, the second sealing device 301 changes along with the movement of the sliding rod 309, and when the floater 303 and the outer shell 305 interact to close the connection between the outside atmosphere and the inside of the liquid level control assembly 300, the second sealing device 301 can seal the air-permeable channel 306, so that the air exchange between the outside atmosphere and the inside of the liquid level control assembly 300 is better limited. The second sealing means 301 may be a gasket, elastomeric sheet or other flexible material.

In order to improve the connection strength between the liquid level control assembly 300 and the pot lid 400 and provide a reasonable installation space for the liquid level control assembly 300, the pot lid 400 comprises an upper lid 401 and a lower lid 402 which are fixedly connected with each other, and a storage cavity 403 is formed between the upper lid 401 and the lower lid 402. The tea strainer component 200 is buckled with the lower cover 402, when the pot cover 400 is lifted, a user can lift the upper cover 401, the lower cover 402 and the tea strainer component 200 simultaneously, water can be conveniently added into the liner, and the pot cover 400 and the tea strainer component 200 can be cleaned. Float 303 among the liquid level control subassembly 300 is small, light in weight, when receiving the exogenic action, take place the damage easily, when float 303 takes place to damage, liquid level control subassembly 300 can not normally work, liquid can enter into air exhaust 509 in to cause the damage to air exhaust 509, consequently, in order to reduce the fault rate of float 303, enclose between upper cover 401 and lower cover 402 and synthesize into and put thing chamber 403, both can play the effect of placing or connecting liquid level control subassembly 300, make liquid level control subassembly 300 stable be connected with pot lid 400, play the guard action to liquid level control subassembly 300 through putting thing chamber 403 simultaneously, reduce the damage to liquid level control subassembly 300 when pot lid 400 accident collides.

To improve the stability of the connection of fluid level control assembly 300, at least a portion of fluid level control assembly 300 is disposed within storage compartment 403. The liquid level control assembly 300 extends into the storage cavity 403 through the lower cover 402, so that part of the liquid level control assembly is positioned in the storage cavity 403 and part of the liquid level control assembly is positioned in the tea strainer assembly 200; the liquid level control assembly 300 extends into the object placing cavity 403 through the upper cover 401, so that part of the liquid level control assembly is positioned in the object placing cavity 403 and part of the liquid level control assembly is positioned in the external atmosphere; the liquid level control assembly 300 penetrates through the upper cover 401 and the lower cover 402, the middle part of the liquid level control assembly is positioned in the storage cavity 403, and the two ends of the liquid level control assembly are positioned in the tea strainer assembly 200 and the external atmosphere; the liquid level control assembly 300 is connected with the lower cover 402 through a connecting channel, and the connecting channel extends towards the direction extending into the tea strainer assembly 200, so that the liquid level control assembly 300 is completely arranged in the tea strainer assembly 200; the liquid level control assembly 300 is connected with the lower cover 402 through a connecting channel, and the connecting channel extends towards the direction close to the upper cover 401, so that the liquid level control assembly 300 is completely arranged inside the object placing cavity 403; the liquid level control assembly 300 is connected to the lower cover 402 through a connecting channel extending in a direction close to the upper cover 401, and the liquid level control assembly 300 is partially or entirely located in the external atmosphere. Preferably, the fluid level control assembly 300 is disposed entirely within the storage compartment 403. The liquid level control assembly 300 is completely arranged in the storage cavity 403, so that the liquid level control assembly 300 can be better protected by the shell 305, and the corrosion of water vapor to the liquid level control assembly 300 or the pollution of external impurities to the liquid level control assembly 300 can be reduced.

In order to increase the contact area between the buoyancy 310 and the liquid, the buoyancy 310 extends in the radial direction of the electric kettle 100, and the radially extending buoyancy 310 forms a connection surface with the float 303, which is perpendicular to the sliding rod 309, or gradually closes toward the lower cover 402 as it gradually moves away from the sliding rod 309, so that the connection surface is spaced apart from the support pipe 308. The connecting surface is vertically arranged with the sliding rod 309, so that the processing of the buoyancy part 310 is facilitated, and the connecting strength between the buoyancy part 310 and the sliding rod 309 is improved. The mode that sets up perpendicularly also can lead to when float 303 rises, and external atmosphere gets into the inside hindrance of liquid level control subassembly 300, reduces gas exchange frequency, consequently will connect the face and set up to the angle that has the slope, when float 303 rises, connect the face and support tube 308 between not laminating totally, inside external atmosphere can be quick entering into liquid level control subassembly 300, improvement gas exchange efficiency.

In the present embodiment, the buoyancy 310 is provided in a square, rectangular parallelepiped, or cylindrical shape. The buoyancy portion 310 is provided in order to increase the buoyancy of the liquid to the float 303, so that the buoyancy portion 310 occupies the inner space of the liquid level control assembly 300 as much as possible, and as a preferable scheme, the buoyancy portion 310 is provided in a cylindrical shape.

When the float 303 is configured as a solid structure, the weight of the float 303 is large, and the slide bar 309 can be easily driven to descend by overcoming adhesion force and friction force, but when the weight of the float 303 is too large, the buoyancy of the liquid is difficult to overcome the gravity of the float 303 to push the float 303 to ascend, and as a preferable scheme, the buoyancy part 310 is configured as a hollow structure. The hollow float 303 not only reduces the weight of the float 303 itself and increases the volume of the liquid entering the accommodating chamber 405, but also increases the contact area between the buoyancy portion 310 and the liquid, thereby enabling the float 303 to be smoothly moved up by buoyancy.

As shown in fig. 11, in order to further reduce the friction between the slide bar 309 and the support tube 308, at least one slide block 311 is disposed on the slide bar 309, and a slide rail 313 cooperating with the slide block 311 is disposed at the slide assembly. The sliding rod 309 is moved by the cooperation between the sliding block 311 and the sliding track 313. The slide block 311 is provided to reduce a contact area between the slide bar 309 and the support tube 308, so that a frictional force therebetween can be reduced. Meanwhile, the arrangement of the slider 311 and the slide 313 can reduce the friction coefficient, thereby reducing the friction force between the two.

As shown in fig. 12, during the process of descending the sliding rod 309, because the gravity of the float 303 is greater than the sum of the friction force and the buoyancy force, and the buoyancy force of the liquid is gradually reduced, the sliding rod 309 always has a tendency to move toward the lower cover 402, if the sliding rod 309 passes through the air-permeable passage 306, the float 303 falls into the accommodating chamber 405, and the float 303 cannot ascend again. In order to limit the sliding rod 309 to slide downwards, a limiting table 314 is arranged on the sliding assembly, a resistance increasing strip corresponding to the limiting table 314 is arranged on the sliding rod 309, and the sliding rod 309 is limited to move towards the lower cover 402 by the mutual matching between the limiting table 314 and the resistance increasing strip. In one embodiment, the limiting table 314 is disposed at a position where the supporting tube 308 is close to the upper cover 401, and the limiting table 314 extends along the outer shell 305 to the inner side of the air-permeable channel 306, and a portion protruding from the supporting tube 308 is used for limiting the movement of the sliding rod 309. In one embodiment, the limiting table 314 is disposed on the supporting tube 308, a sliding groove 312 is formed in an axial direction of the limiting table 314, and the sliding rod 309 extends into the sliding groove 312 and finally abuts against the limiting table 314, so as to limit the movement of the sliding rod 309.

When the number of the sliding blocks 311 is small, the sliding blocks 311 have a certain thickness, so that the contact between the sliding rods 309 and the supporting pipes 308 is unbalanced, the sliding rods 309 swing in the air-permeable channels 306, and the air tightness of the float 303 to the liquid level control assembly 300 is affected, so that the number of the sliding blocks 311 is 2-6. The number of the sliders 311 is preferably set to be a double number, and as a preferable scheme, the number of the sliders 311 is 4. The 4 sliding blocks 311 are arranged to enclose the sliding rod 309 at the middle position through the sliding blocks 311, so that the stable operation of the sliding rod 309 is guaranteed.

The resistance-increasing strips are used for matching the sliding block 311 to be in contact with the supporting tube 308, and have a guiding function through matching with the sliding groove 312. The resistance increasing strip of rectangular shape can be better with slide groove 312 between mutually supporting, more steady slide in slide groove 312 to rectangular shape can be more relaxed will increase and dock each other between resistance increasing strip and the slide groove 312, facilitate the use installation.

In order to ensure that the resistance-increasing strips are matched with the sliding block 311, the sliding rod 309 can stably move in the moving process under the combined action, and the number of the resistance-increasing strips is 2-4. Each resistance increasing strip evenly divides the sliding block 311, the radial thickness of the resistance increasing strip is larger than that of the sliding block 311, the contact area between the resistance increasing strip and the limiting table 314 is increased, and the stability of the sliding rod 309 can be improved by the sliding rod 309.

As shown in fig. 9, although the liquid level control module 300 is communicated with the filtering container 201, as described above, in order to protect the internal structure of the liquid level control module 300, the liquid level control module 300 is arranged to be very compact, and the volume of the liquid level control module 300 is small, so that the efficiency of gas exchange between the liquid level control module 300 and the filtering container 201 is low. Therefore, after the gas in the filtering container 201 is pumped out to form negative pressure, the air pumping device 509 is closed, the outside gas enters the liquid level control assembly 300, the pressure difference between the liquid level control assembly 300 and the filtering container 201 is reduced, the liquid enters the filtering container 201 from the liquid level control assembly 300, and the float 303 descends to close the communication between the outside atmosphere and the accommodating cavity 405. However, because the gas exchange efficiency between the liquid level control assembly 300 and the filtering container 201 is low, when the float 303 descends to close the communication between the external atmosphere and the accommodating cavity 405, the pressure of the filtering container 201 is still lower than the pressure of the inner container, the liquid still soaks the object 900 to be brewed, only when the air pumping device 509 inflates air into the liquid level control assembly 300, the pressure in the filtering container 201 gradually balances with the pressure of the inner container, the liquid enters the inner container from the filtering container 201, and the soaking of the object 900 to be brewed is finished. This process not only results in an uncontrolled soaking time of the object 900 to be brewed, but also increases the usage time of the air-extracting device 509, which results in energy loss. Therefore, in this embodiment, the communication time between the outside air and the accommodating chamber 405 is prolonged by the float 303, so that the amount of the outside air entering the inside of the filter container 201 is increased, and the pressure difference between the filter container 201 and the inner container is reduced. A baffle 315 is provided within the level control assembly and the float 303 is confined within the baffle 315. The partition plate 315 partitions the accommodating chamber 405 into two spaces, a first space 317 for accommodating the float 303, and a second space 318 for rapidly descending the liquid, and the first space 317 and the second space 318 are communicated with each other for gas-liquid exchange between the spaces. In this embodiment, when the liquid rises to a certain height in the first space 317, the float 303 rises, and the height of the liquid is lower than the height of the blocking plate 315.

In order to ensure the efficiency of gas-liquid exchange between the spaces, one end of the baffle 315 is fixedly connected to the lower cover 402, and the other end of the baffle 315 is spaced from the outer casing 305 or connected to the outer casing 305. When the baffle plate 315 is spaced apart from the housing 305, gas and liquid exchange and flow through the gap between the baffle plate 315 and the housing 305. For example, when the liquid in the second space 318 rises too fast, the liquid in the second space 318 is higher than the height of the blocking plate 315, and thus enters the first space 317 from the second space 318 until the liquid level in the first space 317 reaches a preset level, so that the float 303 can rise. When the baffle plate 315 is coupled to the housing 305, a plurality of through holes are provided in the baffle plate 315 for allowing the exchange of gas and liquid in the respective spaces.

Because the pot lid 400 is provided with the liquid level control assembly 300 inside, the upper lid 401 and the lower lid 402 are hermetically connected in order to prevent external impurities from entering the liquid level control assembly 300 to damage the liquid level control assembly or cause sanitary safety problems, and to enhance the protection of the liquid level control assembly 300. The upper cover 401 and the lower cover 402 which are connected in a sealing manner can still exchange gas with the outside atmosphere, and the gas in the storage cavity 403 can exchange gas with the outside atmosphere. Because in one embodiment, the liquid level control assembly 300 is disposed in the storage cavity 403, when the liquid level control assembly 300 exchanges gas with the external atmosphere, that is, exchanges gas with the gas in the storage cavity 403, because the storage cavity 403 has a small volume, if the storage cavity 403 is not communicated with the external atmosphere, the storage cavity 403 cannot hold the object to convey gas into the storage cavity 405, so that the liquid stops rising for a period of time and continues rising, and then enters the air extractor 509, which damages the equipment of the electric kettle 100. Therefore, the connection strength between the upper cover 401 and the lower cover 402 is guaranteed, and meanwhile the storage cavity 403 is communicated with the outside atmosphere, so that gas can be continuously conveyed into the accommodating cavity 405, and the liquid height is guaranteed not to rise any more.

In one embodiment, the sealing connection comprises: the fasteners are fixedly connected; or buckled and connected; or a screw connection. The strength of the connection between the upper cover 401 and the lower cover 402 is enhanced by various sealing connection means.

As shown in fig. 13, the filtering container 201 is communicated with the liquid level control assembly 300, and liquid and gas can be exchanged between the filtering container 201 and the liquid level control assembly 300, so as to control the liquid level in the filtering container 201. Therefore, a first vent hole 320 is formed in the lower cover 402, and the tea leakage assembly 200 is communicated with the liquid level control assembly 300 through the first vent hole 320. The first venting hole 320 is opened at a position corresponding to the accommodating cavity 405, and when the air extractor 509 extracts air in the liquid level control assembly 300, the air in the filter container 201 cannot enter the accommodating cavity 403 through the lower cover 402 because the upper cover 401 is hermetically connected with the lower cover 402, but can only enter the liquid level control assembly 300 through the first venting hole 320 which is opened on the lower cover 402 and corresponds to the accommodating cavity 405, so that the pressure in the filter container 201 is reduced. When the liquid level rises to the position of the lower cover 402, the liquid enters the liquid level control assembly 300 through the first vent hole 320, thereby applying buoyancy to the float 303. During the process of stopping the air suction by the air suction device 509 or inflating the accommodating cavity 405, the liquid or the gas flows into the filter container 201 from the first vent hole 320, the liquid level drops, and the pressure difference between the filter container 201 and the inner container gradually decreases.

In order to make the liquid rapidly enter the containing cavity 405 during the suction process of the suction device 509, the liquid slowly enters the filtering container 201 during the air charging process of the suction device 509, the blocking plate 315 is spaced from the housing 305, a second vent hole 316 is arranged between the blocking plate 315 and the housing 305, and the second vent hole 316 is used for communicating the tea-making leakage assembly 200 with the inside of the housing 305. The second vent hole 316 is arranged at a position corresponding to the accommodating cavity 405, when the liquid level rises to the position of the lower cover 402 in the process of air suction, liquid enters the accommodating cavity 405 through the first vent hole 320 and the second vent hole 316, if the liquid rising height of the second space 318 is higher than that of the first space 317, when the liquid in the second space 318 is higher than that of the barrier plate 315, the liquid flows into the first space 317 from the second space 318, so that the liquid rising speed in the first space 317 is increased, and the floater 303 can rise quickly. During the aeration process, if the liquid in the second space 318 falls into the filtering container 201 more quickly, the speed of the liquid in the first space 317 falling into the filtering container 201 is not affected, at this time, because the liquid in the first space 317 still makes the float 303 in the open state due to the buoyancy of the float 303, the outside air still enters into the filtering container 201, the liquid level in the filtering container 201 decreases due to the pressure difference, and because the speed of the liquid in the first space 317 entering into the filtering container 201 from the first vent hole 320 is slower, the float 303 can slowly fall to close the connection between the outside atmosphere and the accommodating cavity 405 after the liquid level in the filtering container 201 decreases for a period of time.

In order to prevent the gas and liquid in the filtering container 201 from entering the storage cavity 403, the liquid level control assembly 300 is covered on the periphery of the first vent hole 320. The first vent hole 320 is mainly used for communicating the liquid level control assembly 300 with the tea leakage assembly 200, so as to change the gas pressure inside the tea leakage assembly 200. If the first ventilation hole 320 is communicated with the storage cavity 403, the filtering container 201 is always communicated with the outside atmosphere, and the pressure inside the filtering container 201 cannot be controlled more quickly and accurately.

The first vent hole 320 may be configured as a porous mesh structure that is detachable from the through hole of the lower cover 402, so that the user can clean the porous mesh structure, and the porous mesh structure may prevent the object 900 to be brewed from entering the interior of the liquid level control assembly 300 through the first vent hole 320. Or the first ventilation hole 320 is formed in the lower cover 402, as a preferable scheme, the first ventilation hole 320 is formed as at least one slit-shaped strip hole, the diameter of the strip hole is smaller than that of the object 900 to be brewed, and the object 900 to be brewed is prevented from entering the liquid level control assembly 300 through the strip hole. The plurality of holes not only can improve the gas-liquid exchange efficiency between the two components, but also can effectively block the object 900 to be brewed due to the smaller aperture. When lower pot lid 400 was provided with first through-hole and second through-hole, the speed that the strip hole can effectual reduction liquid drip, and the extension holds the time of gas exchange between chamber 405 and the external atmosphere.

The number of the strip holes is 3-6. As a preferred solution, the number of bar holes is 3.

In this embodiment, the liquid flow rate into and out of the second vent hole 316 is greater than the liquid flow rate into and out of the first vent hole 320. This arrangement makes it possible to accelerate the rise of the liquid level in the first space 317 by replenishing the liquid in the second space 318 to the first space 317 during the suction. During the aeration process, the liquid in the second space 318 can be rapidly discharged from the second vent hole 316, while the liquid in the first space 317 slowly drops from the accommodating cavity 405 to the filter container 201 due to the smaller opening of the first vent hole 320.

Since the blocking plate 315 divides the accommodating chamber 405 into a first space 317 and a second space 318, each of which corresponds to each of the spaces, and the first vent hole 320 is disposed at the center of the lower cover 402, the second vent hole 316 is a continuous or intermittent through hole disposed around the first vent hole 320 in order to increase the flow rate of the liquid in the second vent hole 316 into and out of the accommodating chamber 405. The first vent hole 320 is disposed at the center of the lower lid 402, and the center of the corresponding liquid level control assembly 300 corresponds to the first vent hole 320, so that the center of gravity of the entire pot lid 400 is located at the center line, and the center of gravity is more stable when the user pulls the pot lid 400, and the tilting phenomenon is not generated. Meanwhile, the second vent holes 316 arranged in an annular shape can improve the gas-liquid exchange efficiency.

As shown in fig. 6, the tea strainer assembly 200 is provided with a to-be-brewed object 900, the to-be-brewed object 900 soaked in the tea strainer assembly 200 for a long time can cause tea stain or other stains to be stained in the tea strainer assembly 200, so that the tea strainer assembly 200 needs to be frequently washed, and the lower cover 402 and the tea strainer assembly 200 can be detachably connected through the clamping assembly in order to wash the tea strainer assembly 200. When the user lifts the pot lid 400, the pot lid 400 and the tea strainer assembly 200 are simultaneously pulled out, at the moment, the acting force is applied to the clamping assembly, so that the tea strainer assembly 200 is separated from the pot lid 400, and the tea strainer assembly 200 can be cleaned. Because the object 900 to be brewed is adhered to the inside of the filtering container 201 after encountering liquid and is not easy to pour out, in order to clean the object 900 to be brewed, the filtering net 408 is arranged between the filtering container 201 and the conveying element 202 for containing the object 900 to be brewed, and the periphery of the filtering net 408 is provided with a handle for installing or detaching the filtering net 408. Because the environment of the filter screen 408 is a high temperature and high humidity environment, the handle is made of a silicon material in order to prevent the handle from being corroded and dissolved due to being heated and wetted.

As shown in fig. 14 and 15, in order to further improve the connection strength between the tea basket assembly and the pot lid 400, and simultaneously facilitate the user to assemble and disassemble the tea basket assembly, and reduce the rotation degree of the tea basket assembly, the clamping assemblies are distributed on the lower lid 402 and the tea strainer assembly 200 at intervals. Since the snap-fit assembly is generally not visible to the user when the tea basket assembly is installed, the user is required to butt the tea funnel assembly 200 against the lid 400 and rotate the tea funnel assembly by a certain angle to contact the bar-shaped protrusion 406 and the block-shaped protrusion 407. If only one group of clamping components is arranged, the strip-shaped protrusion piece 406 and the block-shaped protrusion 407 can be mutually matched in an extrusion manner only by rotating the clamping components by nearly 360 degrees at most; when a plurality of groups of clamping assemblies are arranged at intervals, a user can reduce the rotation degree, and clamping between the clamping assemblies is facilitated.

In order to increase the contact area between the bar-shaped protrusion 406 and the block-shaped protrusion 407 and enhance the stability of the connection between the tea strainer assembly 200 and the lid 400, the height of the bar-shaped protrusion 406 is gradually increased or decreased in the radial direction of the electric kettle 100. In one embodiment, the lower cover 402 is provided with a strip-shaped protrusion 406, and the tea strainer assembly 200 is provided with a block-shaped protrusion 407. Because the height of the strip-shaped bulge 406 is gradually changed, when the block-shaped bulge 407 is just contacted with the strip-shaped bulge, the contact between the block-shaped bulge 407 and the strip-shaped bulge is not tight, and the block-shaped bulge 407 can be easily guided to a position matched with the strip-shaped bulge 406; when the rotation is continued, the contact between the two parts is gradually tight, and the gradually-raised strip-shaped protrusion 406 can well press the block-shaped protrusion 407, so that the two parts can be tightly buckled.

As shown in fig. 5, since the tea set 200 needs to be mounted and dismounted from the pot lid 400 during the use of the tea set 200, the cleaning or filling work of the tea set 200 with the beverage 900 is completed; with respect to the lid 400, the user needs to lift or close the lid 400 from the body of the electric kettle 100. Therefore, if the third sealing device 800 is fixed only by clamping and squeezing between the tea strainer assembly 200 and the lid 400, when the tea strainer assembly 200 is disassembled, the third sealing device 800 also falls off, in order to better fix the third sealing device 800 and prevent the lid 400 from falling off, the electric kettle 100 comprises a kettle body, a sealing groove is arranged on the kettle body and/or the lid 400, and a sealing strip matched with the sealing groove is arranged on the third sealing device 800; alternatively, the third sealing means 800 is an interference fit with the can body and/or the can lid 400. In one embodiment, when the first sealing groove is formed on the kettle body, and the kettle lid 400 is fastened to the kettle body, the third sealing device 800 extends into the first sealing groove; when the kettle lid 400 is pulled out from the kettle body, the third sealing device 800 is pulled out from the first sealing groove, so that the connection between the third sealing device 800 and the kettle body is realized. The second sealing groove is formed in the lid 400, the third sealing device 800 extends into the second sealing groove all the time, and the second sealing groove provides a main supporting force for the third sealing device 800, so that the third sealing device 800 is prevented from falling off from the lid 400. The third sealing device 800 extends into the gap between the tea strainer assembly 200 and the lid 400, and the tea strainer assembly 200 and the lower lid 402 can abut against each other to enhance the fixing strength of the third sealing device 800 when being pressed and fitted with each other. In one embodiment, the third sealing device 800 is fixed by interference fit with the kettle body and/or the kettle lid 400, so that the third sealing device 800 is convenient to mount and dismount.

Because the third sealing means 800 is engaged with the pot lid 400, the third sealing means 800 is configured as an annular body matched with the pot lid 400 in shape. In order to enhance the connection strength between the annular body 801 and the kettle lid 400 and the kettle body, the third sealing device 800 comprises a first annular member 802 and a second annular member 803, and the first annular member 802 and the second annular member 803 are integrally or separately arranged. The annular body 801 is arranged to prevent gas-liquid exchange between the tea strainer assembly 200 and the inner container, the first annular piece 802 and the second annular piece 803 can extend into the kettle cover 400 or the kettle body, and the connection strength between the third sealing device 800 and the kettle cover 400 or the kettle body is enhanced. The first annular piece 802 and the second annular piece 803 are integrally arranged, so that the third sealing device 800 can be conveniently installed, and the third sealing device 800 is not easy to fall off from the kettle cover 400; the first annular piece 802 and the second annular piece 803 are arranged separately, so that when one of the first annular piece 802 and the second annular piece 803 falls off from the kettle cover 400, the other one can still play a role in blocking gas-liquid exchange between the tea strainer assembly 200 and the inner container, and normal operation of the electric kettle 100 is guaranteed.

In one embodiment, the first ring 802 connects the lid 400 and the body to reinforce the connection strength between the lid 400 and the body; the second ring 803 connects the lid 400 and the tea-caddy assembly 200 to prevent the gas in the tea-caddy assembly 200 or the storage chamber 403 from communicating with the outside atmosphere. Annular body 801 sets up to inside cavity, cover and establishes the pot lid 400 periphery, and annular body 801 extends along the direction that deviates from pot lid 400, forms first annular piece 802, mutually supports between first annular piece 802 and the kettle body, and the phenomenon of gushing water takes place for the liquid in the inner bag when preventing to pour water, restriction liquid's removal route and water yield. The annular body 801 extends in a direction close to the pot lid 400 to form a second annular member 803, and the second annular member 803 can block a gap between the tea-making leakage assembly 200 and the pot lid 400 and/or a gap at the joint of the lower lid 402 and the upper lid 401 in the pot lid 400, so that gas in the tea-making leakage assembly 200 can be prevented from entering the inner container.

In order to reduce the cost of the third sealing device 800 and make the installation of the third sealing device 800 more convenient and simpler, a first sealing strip 805 is arranged at one end of the first ring element 802 away from the kettle lid 400, and the first sealing strip 805 is matched with a first sealing groove on the kettle body. The first sealing strip 805 is arranged on the first third sealing device 800 to be matched with the kettle body, and at this time, the first third sealing device 800 is arranged on the outer side of the annular third sealing device 800 and faces the convex rib which is convex towards the direction close to the kettle body. The convex rib is set as soft silica gel, and is convenient to insert or draw out from the first sealing groove. In order to improve the connection strength between the third sealing device 800 and the kettle body, the first sealing strip 805 is arranged between the middle part of the third sealing device 800 and the bottom part of the third sealing device 800, so that the bonding strength between the first sealing strip 805 and the first sealing groove can be improved. Preferably, the first sealing strip 805 is disposed at the bottom of the third sealing device 800. In order to keep the center of gravity of the third sealing device 800 stable and prevent the third sealing device 800 from turning on one's side, the first sealing strip 805 is symmetrically arranged at the outer side of the annular third sealing device 800 and two layers of convex ribs are arranged, and the multilayer convex ribs are matched with the kettle body, so that the connection strength between the third sealing device 800 and the kettle body can be improved. Preferably, two layers of ribs are symmetrically arranged at the end and the bottom of the third sealing device 800.

In one embodiment, in order to close the gap between the filtering container 201 and the lower cover 402, a second sealing strip 806 is disposed at an end of the second annular member 803 away from the pot lid 400, and a second sealing groove is disposed between the lower cover 402 and the tea strainer assembly 200, and the second sealing strip 806 is matched with the second sealing groove. In order to improve the connection strength between the third sealing device 800 and the kettle lid 400, the second sealing strip 806 is disposed between the middle of the third sealing device 800 and the bottom of the third sealing device 800, and the second sealing strip 806 is disposed on the inner side of the annular third sealing device 800 and faces a convex rib close to the kettle lid 400. Preferably, the second sealing strip 806 is arranged corresponding to the first sealing strip 805.

In one embodiment, in order to prevent gas from escaping through the upper cover 401, a third sealing strip 807 is provided at one end of the second ring member 803 close to the kettle lid 400, and a third sealing groove is provided between the upper cover 401 or the upper cover 401 and the lower cover 402, and the third sealing strip 807 is matched with the third sealing groove. The third sealing strip 807 is arranged inside the annular third sealing device 800 and faces a convex rib which is convex towards the direction close to the kettle lid 400. A third sealing strip 807 extends into the interior of the upper cover 401 and is engaged with the upper cover 401. In order to improve the connection strength between the third sealing means 800 and the upper cover 401, a third sealing strip 807 is provided between the middle of the third sealing means 800 to the end of the third sealing means 800,

the first sealing strip 805, the second sealing strip 806 and the third sealing strip 807 can be mutually matched and arranged according to needs, and no more limitation is made here. Preferably, the first sealing strips 805 are two layers of ribs symmetrically arranged at the end and the bottom of the third sealing device 800; a second sealing strip 806 is arranged at the bottom of the third sealing device 800 and inside the annular third sealing device 800; the third sealing means 800 is arranged at the end of the third sealing means 800 and inside the annular third sealing means 800.

If first annular member 802 is around annular body 801 integrative setting of circumference, then when empting liquid, first annular body 801 not only can prevent that liquid from pouring out from the hu zui other places, reduces the emergence of gushing the water condition, and also can cause the water yield less from hu zui, and the condition that the user can't obtain required quantity fast takes place, and third sealing device 800 is provided with the play basin in the position corresponding with the hu zui of insulating pot 100, makes third sealing device 800 discontinuous the setting. The first annular member 802 is not arranged at the water outlet area to block liquid, so that the liquid flows to the water outlet area under the flow guiding effect of the first annular member 802, and the liquid flows to the kettle nozzle after passing through the water outlet area. In the water outlet area, the first annular member 802 may be intermittently disposed, and the water outlet amount of the water outlet area is maximum at this time; or the water outlet area is arranged at the bottom of the annular body 801, and the first annular piece 802 is still arranged at the middle part and/or the end part of the annular body 801, so that the area of the water outlet area can be reduced, the connection strength between the third sealing device 800 and the kettle body and the liquid guide effect of the first annular piece 802 on the liquid can be enhanced, and when the liquid splashes to the bottom of the kettle cover 400 due to violent dumping, the first annular piece 802 acting above the water outlet area can guide the liquid to the water outlet 809 to prevent the liquid from splashing out of the water outlet 809.

In order to prevent liquid from entering the first ring-shaped member 802, and thus cause the liquid to be accumulated for a long time to cause a sanitary safety problem, a water baffle 808 is arranged on the first ring-shaped member 802 at intervals, and a water outlet area is formed by the water baffle 808. When the first ring member 802 is provided with the plurality of first sealing strips 805, liquid becomes introduced between adjacent two first sealing strips 805, causing a sanitary safety problem. For this purpose, water baffles 808 are provided on the first annular member 802 for connecting the first sealing strips 805, thereby sealing off the liquid path and preventing liquid from entering the interior of the first annular member 802. In order to facilitate the installation of the third sealing device 800, two opposite water outlets 809 are provided on the first annular member 802, when the third sealing device 800 is installed, one of the water outlets 809 is matched with the spout, and the other water outlet 809 can facilitate the connection between the pot lid 400 and the handle 500, so as to prevent the third sealing device 800 and the handle 500 from being abutted to each other and affecting the connection between the pot lid 400 and the handle 500.

Air exhaust device 509 is at inspiratory in-process, and the gas that need will absorb from the tea leak subassembly 200 discharges to air exhaust device 509 outside, because air exhaust device 509 absorbs gaseous temperature is higher, if direct discharge insulating pot 100 is outside, then can produce more steam, not only can scald the user, also can cause not good visual effect, influences the use experience of user to the product. Therefore, it is necessary to discharge the absorbed gas to the inside of the electric kettle 100 to reduce the probability of scalding to the user. The third sealing device 800 is provided with an air outlet, which is connected to the air extractor 509 through an air outlet pipe, and discharges the air in the storage cavity 403 to the outside. A pipeline communicated with an air outlet hole is arranged on the kettle cover 400, the air outlet hole is arranged at the water outlet 809, and the discharged gas enters the inner container through the water outlet 809. When two opposing water outlets 809 are provided, an air outlet is provided at one of the water outlets 809.

In the present embodiment, as shown in fig. 7 and 8, the suction or evacuation process of the interior of the liquid level control assembly 300 can be realized by forward rotation or reverse rotation of the evacuation device 509. The liquid level control assembly 300 is provided with a first gas channel 600, the first gas channel 600 is connected with the gas circuit coupling device 700 through a first gas pipeline 602, and the gas circuit coupling device 700 is connected with the gas extraction device 509 through a second gas pipeline 603. At this time, the liquid level control assembly 300 is connected with the air exhaust device 509 only through a complete gas pipeline, when the object 900 to be brewed needs to be soaked, the air exhaust device 509 rotates forwards, the air exhaust device 509 exhausts gas from the interior of the tea strainer assembly 200, negative pressure is formed in the interior of the tea strainer assembly 200, and liquid in the liner rises to enter the tea strainer assembly 200 to soak the object 900 to be brewed; when the tea reaches the required concentration, the air exhaust device 509 is reversed, the air is inflated into the tea strainer assembly 200 by the air exhaust device 509, so that the atmospheric pressure in the tea strainer assembly 200 is the same as the inner container, and the liquid in the tea strainer assembly 200 flows back into the inner container. This process may be repeated multiple times. The connection of the single gas pipeline can make the installation of the electric kettle 100 more convenient, and reduce the installation cost of the electric kettle 100.

Since the electric kettle 100 is used for soaking the to-be-brewed object 900 with the boiled liquid, the boiled liquid may generate a lot of water vapor with higher temperature, so that in the process of exhausting the air exhausting device 509, a part of the water vapor with higher temperature may be brought into the air exhausting device 509, and a certain corrosion damage may be caused to the air exhausting device 509. The air pumping device 509 is provided with a third gas pipeline 604, the electric kettle 100 is provided with a connecting pipe connected with the third gas pipeline 604, and the gas-liquid mixture is discharged to the outside of the air pumping device 509 through the connecting pipe. Therefore, in the process of air suction, after the air with air-liquid mixture enters the air suction device 509 from the tea strainer assembly 200 through the first air pipeline 602 and the second air pipeline 603, the air is quickly discharged to the outside of the air suction device 509 from the third air pipeline 604 through the transmission of the air suction device 509, so that the retention time of the air-liquid mixture in the air suction device 509 is reduced, and the service life of the air suction device 509 is prolonged. The third gas pipeline 604 may discharge the gas-liquid mixture to the outside of the electric kettle 100, or may discharge the gas-liquid mixture to the inner container, so as to realize the recycling of the gas-liquid mixture.

As shown in fig. 16, when the gas-liquid mixture is discharged to the outside of the electric kettle 100 through the third gas pipe 604, the user may be scalded if the user carelessly touches the gas-liquid mixture due to the high temperature of the gas-liquid mixture. Moreover, when the gas-liquid mixture is discharged outside the electric kettle 100, white smoke is generated, which affects the use experience. Therefore, the air extracting device 509 is provided with a third gas pipeline 604, the electric kettle 100 is provided with a fourth gas pipeline 605, one end of the fourth gas pipeline 605 is connected with the third gas pipeline 604 through the air path coupling device 700, the other end of the fourth gas pipeline 605 is communicated with the second gas channel 601, and the gas-liquid mixture is discharged to the outside or the inside of the electric kettle 100 through the second gas channel 601. The third gas line 604 and the fourth gas line 605 are connected by the gas-line coupling device 700, so that the connection sealing property between the third gas line 604 and the fourth gas line 605 can be improved, and the gas-liquid mixture can be prevented from escaping from the connection part between the third gas line 604 and the fourth gas line 605. The fourth gas pipeline 605 extends for a distance inside the electric kettle 100 and then discharges the gas-liquid mixture into the inside or outside of the electric kettle 100, so that the gas-liquid mixture can be recycled, and a user can be prevented from being scalded; the gas-liquid mixture is discharged to the outside, and the gas-liquid mixture is discharged to the outside of the electric kettle 100 after moving for a certain distance in the electric kettle 100, so that the temperature of the gas-liquid mixture is reduced, and scalding is not easily caused to a user. The first gas channel 600 and the second gas channel 601 are made of hard materials, so that the first gas channel 600 and the second gas channel 601 will not generate channel compression due to the rapid change of pressure during the process of air suction or air inflation of the air pumping device 509, and the flow of the gas-liquid mixture will not be affected.

In this application, the opening and closing fit between the lid 400 and the body is a plug fit, and when the lid 400 is opened and closed, a user applies force to the lid 400 along the axial direction of the electric kettle 100. In order to ensure that the pot lid 400 and the gas channels are well matched, so that the gas-liquid mixture can smoothly pass through the gas channels, the first gas channel 600 is disposed on the side wall of the liquid level control assembly 300. The first gas channel 600 is arranged on the side wall of the liquid level control assembly 300 close to the gas circuit coupling device 700, and the height between the first gas channel 600 arranged on the side wall and the gas circuit coupling device 700 is approximately equal, so that the power of the gas-liquid mixture increased to the air extraction device 509 due to the gravitational potential energy can be reduced, and the gas-liquid mixture can be discharged to the outside of the tea leakage assembly 200 more quickly.

In order to increase the buoyancy of the liquid inside the liquid level control assembly 300 to the float 303, i.e., increase the height of the liquid inside the accommodating chamber 405, the first gas channel 600 is disposed at a region close to the upper pot lid 400. When the float 303 rises, the liquid in the accommodating cavity 405 is lower than the first gas passage 600, and the liquid cannot enter the air exhaust device 509 from the first gas passage 600, so that the operation safety of the air exhaust device 509 is guaranteed. Meanwhile, the gas-liquid mixture is sucked and discharged by the gas exhaust means 509 only when the gas-liquid mixture rises to the height of the first gas passage 600, so that the amount of absorption of the gas-liquid mixture by the gas exhaust means 509 is reduced.

In order to enhance the strength of the handle 500, prevent the imbalance of the center of gravity between the kettle body and the handle 500 and the substantial rollover of the electric kettle 100, or prevent the handle 500 from being broken when the electric kettle 100 is taken out through the handle 500 because the handle 500 has insufficient strength, the air exhaust device 509 is disposed at the handle 500, and the gas pipes are disposed at the upper kettle lid 400 or the handle 500 of the electric kettle 100. Because the pot lid 400 and the handle 500 are relatively close to each other, the gas pipelines are arranged at the pot lid 400 or the handle 500, so that the use length of the gas pipelines can be reduced, and the use cost is reduced. And the shorter gas pipeline does not need to be additionally provided with a fixing device for the gas pipeline or only needs to be added with a small number of fixing devices to meet the fixing requirement for the gas pipeline.

To lengthen the path of the fourth gas line 605, a second gas channel 601 is disposed within the storage chamber 403. The fourth gas line 605 is disposed in the kettle lid 400, and as a preferred option, the second gas channel 601 corresponds to the water outlet nozzle. The path of the fourth gas line 605 is thus the longest, and the temperature of the gas-liquid mixture can be effectively reduced. Meanwhile, when the liquid is boiled, high-temperature steam escapes to the outside atmosphere through the water outlet nozzle, the gas-liquid mixture is arranged at the water outlet nozzle, part of the gas-liquid mixture falls back to the inner container due to gravity, part of the gas-liquid mixture diffuses to the outside atmosphere, and at the moment, because the high-temperature steam escapes to the outside atmosphere through the water outlet nozzle, a user can notice the high-temperature steam escaping from the water outlet nozzle, and the risk that the user is scalded by the steam is reduced.

The storage compartment 403 in the lid 400 has a small volume, the handle 500 is generally elongated, and the first gas channel 600, the gas pipe and the second gas channel 601 are elongated for better utilization of the space above the lid 400 and the handle 500. The long strip shape enables the volume of the liquid mixture pumped out every time to be small, so that the gas-liquid mixture can be fully contacted with each gas pipeline, and the temperature of the gas-liquid mixture can be effectively reduced.

In order to reduce the power of the air extracting device 509 and reduce the frequency of the air extracting device 509, a pipeline on-off device 510 is arranged between the air path coupling device 700 and the air extracting device 509. Through the mutual cooperation between pipeline on-off device 510 and each gas line for aerify the in-process, need not to open air exhaust device 509, with intercommunication between pipeline on-off device 510 and the gas circuit coupling device 700, can leak the inside inflation of subassembly 200 to the tea, save air exhaust device 509 life, reduce the energy consumption.

In this embodiment, the pipeline on-off device 510 includes a first three-way valve 501 and a second three-way valve 502, where the first three-way valve 501 is used to connect one end of the on-off device, the second gas pipeline 603, and the gas exhaust device 509; the second three-way valve 502 is used to connect the other end of the on-off device, the third gas line 604 and the gas exhaust 509. During the suction process, the pipe on-off device 510 is disconnected, and at this time, the first gas pipe 602, the second gas pipe 603, the air extractor 509 and the third gas pipe 604 are communicated, so that the gas in the tea-strainer assembly 200 is discharged to the outside of the electric kettle 100 through the path, or the third gas pipe 604 is communicated with the fourth gas pipe 605, so that the gas in the tea-strainer assembly 200 is discharged to the inner container through the path. In the process of air inflation, the pipeline on-off device 510 is opened, the air exhaust device 509 stops working, at the moment, the first air pipeline 602, the second air pipeline 603, the pipeline on-off device 510 and the third air pipeline 604 are communicated, the external atmosphere enters the electric kettle 100 through the third air pipeline 604, and air is filled into the tea leakage assembly 200 to enable the pressure in the tea leakage assembly 200 to be balanced with the pressure of the external atmosphere, so that the air suction and inflation processes of the electric kettle 100 are realized.

In the process of breathing in or aerifing, the tea basket subassembly can receive gaseous impact to easily take place to break away from with pot lid 400, in order to improve the joint strength between tea basket subassembly and pot lid 400, the block subassembly includes a plurality of bar bellyings 406 and with the mutual extrusion fit's of each bar bellyings 406 a plurality of cubic archs 407. One of the lower cover 402 or the filter container 201 is provided with a strip-shaped bulge 406, the other one is provided with a block-shaped bulge 407, and the block-shaped bulge 407 and the strip-shaped bulge 406 are mutually pressed after rotating, thereby fixing the tea filter assembly 200. When the tea strainer assembly 200 needs to be disassembled, the block-shaped bulges 407 rotate in the opposite direction, and the strip-shaped bulges 407 are released from the extrusion fit, so that the tea strainer assembly 200 is separated from the pot cover 400. The use of the squeeze fit for fixation can improve the contact area between the bar-shaped protrusion and the block-shaped protrusion 407, so that the fit between the bar-shaped protrusion and the block-shaped protrusion is tighter, thereby improving the connection strength between the tea basket assembly and the pot lid 400.

In the electric kettle 100, the rising and falling of the liquid level in the tea leakage component 200 are realized by the difference between the pressure inside the tea leakage component 200 and the pressure inside the inner container, and in order to generate the pressure difference between the tea leakage component 200 and the inner container and to enable the generated pressure difference to be extinguished to achieve balance, an air extractor 509 is arranged in the electric kettle 100, and the air is sucked or inflated into the tea leakage component 200 through the air extractor 509 to achieve the effect of generating the pressure difference or balancing the pressure. In the process, in order to reduce the working time of the air extractor 509 and improve the working efficiency of soaking the object 900 to be brewed and make the tea drink reach the concentration required by the user, the air of the pot lid 400 or the tea strainer assembly 200 needs to be prevented from being the same as the external atmosphere, so that a plurality of sealing assemblies are arranged on the pot lid 400, and the object placing cavity 403 or the liquid level control assembly 300 is limited by each sealing assembly to be communicated with the external atmosphere. The sealing assembly can make each chamber become a relatively independent individual, so that the gas or liquid can only move in each chamber through a specific passage port. For example, a sealing assembly is arranged between the tea strainer assembly 200 and the pot lid 400, so that gas or liquid can be prevented from overflowing from the joint of the tea strainer assembly 200 and the pot lid 400, and can be communicated with the liquid level control assembly 300 only through the first vent hole 320 and/or the second vent hole 316 and communicated with the liner through the conveying piece 202. A sealing assembly is provided between the fluid level control assembly 300 and the lower cover 402 to prevent gas or liquid from escaping into the storage compartment 403 through the connection between the fluid level control assembly 300 and the lower cover 402.

The pot lid 400 and the tea strainer assembly 200 are detachably connected by the engaging assembly, so that a gap is left between the pot lid 400 and the tea strainer assembly 200, thereby enabling the filter container 201 to be always connected with the external atmosphere, and a third sealing device 800 is provided between the pot lid 400 and the tea strainer assembly 200. The third sealing device 800 is arranged to block the connection between the filtering container 201 and the external atmosphere, so that the gas in the filtering container 201 can be rapidly pumped out, and the liquid in the filtering container 201 can be prevented from entering the inner container through the gap between the pot lid 400 and the tea strainer assembly 200, thereby influencing the use experience of a user.

In order to improve the stability of the connection between the lid 400 and the tea strainer assembly 200, the third sealing means 800 is designed continuously or intermittently and is disposed around the lid 400. The third sealing device 800 that sets up around pot lid 400 can make between pot lid 400 and the tea strainer subassembly 200 more firm to third sealing device 800 meets can be better after the liquid with pot lid 400 and the bonding of tea strainer subassembly 200 together, makes the three fixed more firm, prevents when empting the liquid in insulating pot 100, and tea strainer subassembly 200 takes place to drop with pot lid 400. In order to better limit the tea strainer assembly 200, a part of the third sealing device 800 extends into a gap between the tea strainer assembly 200 and the pot lid 400, so as to enhance the connection strength between the two.

Because the liquid level control assembly 300 is disposed inside the storage cavity 403 and fixedly connected to the lower cover 402, if there is a gap in the connection between the lower cover 402 and the liquid level control assembly 300, the storage cavity 405 will not only be always connected to the outside atmosphere, which affects the air suction efficiency of the air extractor 509, but also causes the problem that the liquid level is too fast lowered during air inflation, and the soaking time of the object 900 to be brewed is short; and liquid can enter into and hold chamber 405 through the clearance, and the liquid that enters into and holds the chamber 405 is difficult for discharging, and long-time accumulation can breed the bacterium, causes the safety and sanitation problem. Therefore, a first sealing device 319 is disposed between the lower cover 402 and the liquid level control assembly 300, and the first sealing device 319 prevents the gas communication between the liquid level control assembly 300 and the storage chamber 403. When the first sealing device 319 is to solve the problem of gas or liquid entering the storage compartment 403, the first sealing device 319 is disposed inside or outside the housing 305, and functions to block the connection between the accommodating compartment 405 and the storage compartment 403. When first sealing device 319 is connected unstablely, leads to liquid level control subassembly 300 to easily take place the problem of rocking in order to solve liquid level control subassembly 300 and lower cover 402, be provided with spacing groove 302 on the first sealing device 319, during shell 305 stretched into spacing groove 302, spacing groove 302 parcel shell 305 to play the effect of stably preventing rocking to liquid level control subassembly 300, all be provided with first sealing device 319 in the inside and outside both sides of shell 305 simultaneously, the effectual escape that prevents gas or liquid. As a preferable scheme, the first sealing device is a silica gel sealing ring or other soft materials.

Because the electric kettle 100 of the present application extracts the gas in the tea leakage component 200 through the gas extraction device 509, the gas in the tea leakage component 200 is reduced, and a pressure difference is formed between the tea leakage component 200 and the inner container, so that the liquid in the inner container enters into the tea leakage component 200, and the brewing of the to-be-brewed object 900 in the tea leakage component 200 is realized. When the soaking is finished, the air pumping device 509 inflates air into the tea leakage component 200, so that the pressure inside the tea leakage component 200 is normal atmospheric pressure, and liquid can flow back into the inner container of the electric kettle 100 from the inside of the tea leakage component 200, namely the tea drinking concentration required by people is obtained. The liquid level control module 300 is connected to the gas-extracting device 509 through gas passages, and the process of air suction or inflation inside the liquid level control module 300 is realized through the gas passages. In order to ensure the smooth proceeding of the air suction or inflation process, improve the sealing performance of the connection between each air channel and the liquid level control assembly 300 or the air extractor 509, and prevent the air leakage at the joint of each device, the electric kettle 100 is provided with an air path coupling device 700 for hermetically connecting the liquid level control assembly 300 and the air extractor 509. In the using process, the pot cover 400 is often required to be opened to add liquid into the inner container, or the liquid which is not required in the inner container is poured out of the inner container, the inner container is cleaned, and the pot cover 400 is opened and closed frequently. And because the pot lid 400 is small, the air exhaust device 509 is usually placed in the handle 500 or the power base and not placed inside the pot lid 400, then each air channel needs to span at least two devices to connect the liquid level control assembly 300 with the air exhaust device 509, and because the pot lid 400 is frequently opened and closed, the situation that the two corresponding air channels cannot be well sealed when each air channel is bent or closed occurs, therefore, the air path coupling device 700 is arranged, and the sealing performance and the portability of the connection between each air channel and the liquid level control assembly 300 or the air exhaust device 509 are enhanced.

In this embodiment, in the process of inhaling and inflating, a large amount of highly-moving gas passes through the gas path coupling device 700, and the position of the gas path coupling device 700 is moved to prevent the gas from impacting, so that the gas path coupling device 700 and the connecting pipe are not tightly sleeved. The gas circuit coupling device 700 includes: a pressure plate 701; at least one connecting column is arranged on the pressure plate 701, and the connecting column 702 is in inserted connection and communication with a corresponding connecting pipe; at least one connecting pipeline is arranged on the pressing plate 701, one end of the connecting pipeline 703 is communicated with the connecting column 702, and the other end of the connecting pipeline 703 is communicated with the tea leakage component 200; each connecting column is communicated with each connecting pipeline in a one-to-one correspondence manner. During inspiration, the gas exerts a radial pressure on the gas circuit coupling device 700; during inflation, the gas exerts an axial pressure on gas circuit coupling device 700. The arrangement of the pressing plate 701 can not only resist axial pressure for the gas circuit coupling device 700, but also effectively resist radial pressure because the pressing plate 701 increases the weight of the gas circuit coupling device 700. The first gas pipeline 602 is arranged in the extending direction of the pot lid 400, the second gas pipeline 603 is arranged along the extending direction of the handle 500, and the extending directions of the first gas pipeline 602 and the second gas pipeline 603 are changed, so that a corresponding height difference is generated. In order to enable gas to smoothly pass through among the gas pipelines and prevent the phenomenon that the gas cannot normally flow because the gas is accumulated at a sudden change position due to the sudden change of the extension direction among the gas pipelines, the connecting column 702 is arranged in parallel with the axis of the electric kettle 100, the connecting pipeline 703 is arranged perpendicular to the axis of the electric kettle 100, and when the gas flows between the connecting column 702 and the connecting pipeline 703, the flowing direction can be changed. The gas is transferred between different heights through the gas path coupling device 700, so that the gas can smoothly circulate among the gas pipelines, the impact of the gas on the plug interface is reduced, and the accumulation problem of the gas at the turning part can be prevented. The one-to-one correspondence of connecting columns 702 and connecting lines 703 can meet the requirements of multiple gas lines.

In the process of air suction, the air suction device 509 sucks air in the tea leakage component 200, the pressure difference between the tea leakage component 200 and the external atmosphere is increased, the height of liquid in the tea leakage component 200 rises until the liquid enters the liquid level control component 300, the liquid level control component 300 rises under the action of the liquid, so that the external air enters the tea leakage component 200 through the liquid level control component 300, the pressure difference between the tea leakage component 200 and the external atmosphere is reduced until the pressure difference between the tea leakage component 200 and the external atmosphere is balanced, the liquid stops rising, and the liquid in the tea leakage component 200 is prevented from entering the air suction device 509.

In the process of air inflation, the air exhaust device 509 stops working, the external air continuously enters the tea leakage assembly 200, the pressure difference between the tea leakage assembly 200 and the external atmosphere is reduced, the liquid height gradually decreases, the liquid level control assembly 300 descends under the action of the liquid until the pressure of the tea leakage assembly 200 is equal to the pressure of the external atmosphere, and the liquid height in the tea leakage assembly 200 is equal to the liquid height in the inner container of the electric kettle 100.

Specifically, in the air suction process, the pipeline on-off device 510 is closed, the air suction device 509 is opened, at the moment, air in the accommodating cavity 405 is sucked to the outside atmosphere by the air suction device 509, the pressure in the accommodating cavity 405 is reduced, the tea leakage component 200 is communicated with the accommodating cavity 405 through the first air channel 600, the air in the tea leakage component 200 is reduced along with the reduction of the pressure in the accommodating cavity 405, and a pressure difference is formed between the tea leakage component 200 and the inner container. The pressure of the inner container presses liquid into the filtering container 201 through the conveying part 202, along with the gradual increase of the pressure difference between the tea strainer assembly 200 and the inner container, the height of the liquid in the tea strainer assembly 200 gradually rises and enters the containing cavity 405 through the first gas channel 600, the liquid generates buoyancy on the floater 303 to enable the floater 303 to rise, the external atmosphere enters the containing cavity 405 to reduce the speed of pressure reduction in the tea strainer assembly 200 until the pressure difference between the tea strainer assembly 200 and the external atmosphere is balanced, the liquid does not rise any more, and the liquid soaks the to-be-brewed object 900.

In the process of inflation, the air exhaust device 509 stops working, at the moment, the pipeline on-off device 510 is opened, outside air enters the accommodating cavity 405 through the pipeline on-off device 510, the pressure of the air in the accommodating cavity 405 is gradually increased, the pressure difference between the tea strainer assembly 200 and the inner container is reduced, the buoyancy of liquid to the float 303 is gradually reduced, the float descends, and the liquid height of the tea strainer assembly 200 is gradually reduced to the position as high as the liquid height of the inner container.

The above processes of inhalation and aeration can be repeated for several times until the desired tea concentration is reached.

All possible combinations of the technical features of the embodiments described above may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features. Features of different embodiments are shown in the same drawing, which is to be understood as also disclosing combinations of the various embodiments concerned.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims

1. The utility model provides an electric kettle, includes the tea and leaks the subassembly and be used for extracting the interior gaseous air exhaust device of tea hourglass subassembly, its characterized in that the tea leak the subassembly with be provided with the liquid level control subassembly between the air exhaust device, the liquid level control subassembly is located on the kettle cover of electric kettle, wherein, the liquid level control subassembly includes:

the shell is fixedly connected with the kettle cover;

2. An electric kettle as claimed in claim 1, wherein the kettle lid comprises an upper lid and a lower lid fixedly connected to each other, a storage compartment being formed between the upper lid and the lower lid, at least a portion of the level control assembly being disposed within the storage compartment.

3. An electric kettle according to claim 1, characterized in that the housing is provided with a sliding assembly for reciprocating the float, the float comprises a slide bar and a buoyancy part contacting with the liquid, the slide bar is provided with at least one slide block, and a slide way cooperating with the slide block is arranged at the sliding assembly.

4. The electric kettle as claimed in claim 3, wherein the sliding assembly is provided with a limiting table, the sliding rod is provided with a resistance increasing strip corresponding to the limiting table, and the sliding rod is limited from moving towards the lower cover by the cooperation between the limiting table and the resistance increasing strip.

5. An electric kettle according to claim 4, wherein the resistance increasing strips are arranged in a strip shape, and are symmetrically arranged between each other.

6. An electric kettle according to claim 3, wherein the buoyancy portion extends in a radial direction of the electric kettle.

7. An electric kettle as claimed in claim 3, wherein the buoyancy section is provided as a hollow structure.

8. An electric kettle according to claim 1, wherein a baffle plate is provided within the level control assembly, the float being confined within the baffle plate.

9. The electric kettle as claimed in claim 8, wherein the baffle plate is spaced from the housing, and a second vent hole is provided between the baffle plate and the housing for communicating the tea-making assembly with the interior of the housing.