CN218889548U - Insulating electric kettle - Google Patents

Abstract

The utility model relates to a heat-insulating electric kettle, which comprises a kettle body, a kettle cover, a kettle nozzle, a water heating component, a valve bracket, a first elastomer and a drainage channel connected with the kettle nozzle; the valve bracket is used for opening or closing the water discharge path; the device also comprises an exhaust passage, a briquetting component and a second elastomer; the first pipe orifice of the exhaust channel is communicated with the kettle mouth, and the second pipe orifice is communicated with the kettle; the side wall of the pressing block component is provided with a flange, a pressing block is arranged in the pressing block component, the pressing block component moves to enable the flange to seal the second pipe orifice under the elastic action of the second elastic body when the electric kettle is dumped to be more than or equal to 90 degrees, and the pressing block is pressed down by the gravity under the upright state of the electric kettle, so that the pressing block component drives the flange to be far away from the second pipe orifice. The utility model is used for solving the contradiction problem between the expansion air release generated during water boiling and the water leakage amount during 90-degree pouring under the premise of ensuring that the water pouring injection is avoided.

Description

Insulating electric kettle

Technical Field

The utility model relates to a water boiling device, in particular to a heat preservation electric kettle which can give consideration to pressure relief and water leakage control.

Background

When the insulating electric kettle works, the pressure can be relieved only by the exhaust structure because the inside of the kettle body adopts a closed design. However, the pressure release structure can cause excessive water leakage amount when the kettle is poured at 90 degrees, and danger is easy to generate, so that safety parts 2-15 of related standard Japanese families and similar electric appliances are provided with the following parts: individual requirements for liquid heating appliances (number J60335-2-15 (2021)) set forth that the kettle requires a drain of less than 50mL when poured at 90 degrees.

For the exhaust structure of the insulating electric kettle, it is common at present to use that the pressure in the kettle is continuously increased when water is heated, so as to set a certain switch device to open the pressure release channel when the pressure is increased to a certain degree. For example, chinese patent CN202121797490 proposes to seal the pressure relief opening with balls. The problem with this type of solution is that if a user is about to pour water just after boiling, the pressure in the kettle is not released or is not completely released, and the water coming out of the kettle does not flow normally and naturally, but is poured out in the form of a spray.

Chinese patent CN201520061219 proposes to use elastic silica gel suspended at one side to match with gravity ball above, keep the pressure release channel open in the upright state of the kettle, and remove by gravity ball when the kettle is 90 ° and the elastic silica gel rebounds to close the pressure release channel. Because the pressure release channel is always open in the upright state of the kettle, the CN201520061219 can keep the internal and external air pressure consistent in each stage of water boiling so as to avoid the injection problem when water is poured just after the water is boiled. However, CN201520061219 uses silica gel as an elastomer to block the channel, and has three main drawbacks, namely, poor consistency of elastic force of the elastomer due to vulcanization of the silica gel; secondly, the surface of the silica gel is a plane, even if the suspended part is slightly tilted downwards, the whole is basically horizontal, scale is easy to be formed on the suspended part when water exists, and the suspended part can not be blocked due to rebound; thirdly, the technology mainly relies on the self elasticity of the elastomer to realize the shutoff, and the silica gel as the elastomer is always in the gas circuit, and high temperature steam will accelerate ageing and lead to resilience inefficacy, influences the reliability.

Japanese patent JP2018240703 proposes to avoid risks by means of the extraction holes, ribs, gaps C and the mutual cooperation with other components, which puts high demands on the assembly, as well as reliability problems.

Disclosure of Invention

The utility model aims to solve the contradiction problem between the expansion air release generated during water boiling and the water leakage amount during 90-degree pouring under the premise of ensuring that water pouring injection is avoided.

Therefore, the heat-insulating electric kettle comprises a kettle body, a kettle cover, a kettle nozzle, a water heating component, a valve bracket, a first elastomer and a drainage channel connected with the kettle nozzle;

the first elastic body is used for maintaining the valve bracket at a first position in a normal state, blocking a drainage path between the interior of the kettle and the drainage channel when the valve bracket is at the first position, and moving away from the first position under the action of external force so as to open the drainage path;

the device also comprises an exhaust passage, a briquetting component and a second elastomer;

the first pipe orifice of the exhaust channel is communicated with the kettle mouth, and the second pipe orifice of the exhaust channel is communicated with the kettle; the side wall of the pressing block component is provided with a flange which protrudes outwards and is used for blocking the second pipe orifice, a pressing block is arranged in the pressing block component, the pressing block component moves to enable the flange to block the second pipe orifice under the elastic action of the second elastic body when the electric kettle is poured to be more than or equal to 90 degrees, and the pressing block is pressed down by the gravity under the upright state of the electric kettle so as to drive the flange to be far away from the second pipe orifice.

Compared with the prior art, the heat-preservation electric kettle has the following advantages:

(1) Not only solves the contradiction problem between the expansion air release generated during water boiling and the water leakage amount during 90-degree pouring, but also solves the injection problem during water pouring just after boiling;

(2) The sealing component (valve body) is controlled to be separated from the rebound component (second elastomer) to improve reliability.

Drawings

Fig. 1 is a sectional view showing the whole of a simplified-structure insulating electric kettle in example 1.

Fig. 2 shows a schematic view of the outer edge abutting the drain channel nozzle to block the drain path in example 1.

Fig. 3 shows an enlarged cross-sectional view of the pot lid of example 1.

Fig. 4 shows the internal structure of the accommodating chamber in embodiment 1.

Fig. 5 shows the exhaust path of the insulating electric kettle of example 1 in normal water boiling.

Fig. 6 shows a schematic diagram of the insulating electric kettle of example 1 in which the pressing block cuts off the air passage when pouring.

Fig. 7 is a cross-sectional view showing the whole of the insulating electric kettle in example 2.

Fig. 8 shows an enlarged cross-sectional view of the pot lid of example 2.

Fig. 9 shows the exhaust path of the insulating electric kettle of example 2 in normal water boiling.

Fig. 10 shows a schematic view of the insulating electric kettle of example 2 with the valve body intercepting the air passage when pouring.

Fig. 11 is a cross-sectional view showing the whole of the insulating electric kettle in example 3.

Fig. 12 shows an enlarged cross-sectional view of the pot lid of example 3.

Fig. 13 shows the exhaust path of the insulating electric kettle of example 3 in normal water boiling.

Fig. 14 shows a schematic view of the insulating electric kettle of example 3 with the valve body intercepting the air passage when pouring.

Fig. 15 shows a schematic structure in which the inclined surface of embodiment 3 is configured to be integrally formed with the housing of the briquette assembly.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

The utility model relates to a heat-insulating electric kettle, which aims to solve the contradiction problem that the expansion air generated during water boiling is discharged and the water leakage quantity is controlled at 90 DEG, and the basic idea is summarized that a channel can be exhausted during water boiling and the channel is closed to control the water leakage quantity when the water is poured at 90 DEG or more (a water outlet switch is not pressed) (Japanese safety requirements).

Example 1

Fig. 1 to 6 illustrate a first embodiment of the present utility model, which has the advantage of being structurally simplified compared with other embodiments of the present utility model, in addition to solving the contradictory problems described above. Specifically, fig. 1 shows an overall sectional view of the simplified-structure insulating electric kettle of the present utility model, including a base 1, a kettle body 2, a spout 21, a kettle lid 3, a valve holder 31, an elastic body 32, a water heating member, and a water discharge passage 22 connected to the spout 21.

The base 1 is used for supplying power to a water heating component (such as a heating wire or other electric heating devices) in the kettle body 2 through a coupler at the bottom of the kettle body 2, and it should be noted that, in this embodiment, the water heating component is not limited to an electric heating mode, but may be other modes such as flame heating. The kettle body 2 adopts a double-layer kettle body, and achieves internal and external heat isolation in an internal vacuumizing mode. 4 is the water body stored in the kettle body 2 and is poured out through the kettle nozzle 21.

In the present embodiment, the valve holder 31 may be provided on the kettle body 2 or on the kettle lid 3 as a member for opening and closing the drain passage 22. The elastic body 32 is a stainless steel spring, and mainly uses its own elasticity to provide an upward pulling force to the valve bracket 31, so as to normally maintain the valve bracket 31 in the first position. As shown in fig. 1, the side wall of the valve holder 31 has an outer edge 311 protruding outwards, and when the valve holder 31 is pulled to the first position, the outer edge 311 abuts the spout of the drain channel 22 to block the drain path between the interior of the jug and the drain channel 22, as shown in fig. 2. When an external force presses down, for example, presses the valve holder 31 downward, the valve holder 31 moves away from the first position, the outer edge 311 no longer blocks the orifice of the drain passage 22, and the drain path is opened.

The components for realizing the pouring and sealing channel of 90 degrees and above for the water-boiling exhaust in the present embodiment mainly depend on the accommodating cavity 312 and the pressing block 313 arranged in the accommodating cavity as shown in fig. 3. The accommodating cavity 312 is in a column shape or a strip shape which is vertically arranged, the top of the accommodating cavity is provided with a first air guide port 3121 communicated with the kettle mouth, the bottom of the accommodating cavity is provided with a second air guide port 3122 communicated with the kettle, and the first air guide port 3121 and the second air guide port 3122 are aligned up and down. As shown in fig. 4, a plurality of protruding ribs 3123 are disposed on the inner side wall of the accommodating cavity 312 along the vertical direction, each protruding rib 3123 extends from the second air guide port 3121 to the first air guide port 3122 and is distributed around the pressing block 313, each protruding rib 3123 jointly surrounds a channel for guiding the pressing block to move to the first air guide port 3121, and the gaps between every two protruding ribs 3123 and between the accommodating cavity 312 and the pressing block 313 form channels.

Referring to fig. 5, when the electric kettle is upright, the pressing block 313 is far away from the first air guide port 3121 due to gravity and is positioned at the second air guide port 3122 of the valve support 31, the air guide path between the first air guide port 3121 and the second air guide port 3122 is communicated, the interior of the kettle body is communicated with the kettle mouth 21, and the expansion air is discharged through the air guide channel, so that the pressure in the interior of the kettle body is relieved.

Referring to fig. 6, when the water kettle is tilted by 90 ° or more, the pressing block moves to the first air guide port 3121 under the action of gravity to block the channel, so that the water leakage amount in the kettle body is controlled, and water can be poured out only after the water outlet switch 5 is opened.

Compared with the prior art, the insulating electric kettle of the embodiment has the following advantages:

(1) The air channel is always kept on when water is boiled, so that the consistency of the internal and external air pressures is realized, the water can naturally flow without being sprayed even when the water is in an extreme scene that the user needs to pour when just boiling, meanwhile, the channel is blocked by moving the pressing block to the first air guide port in a state of pouring more than or equal to 90 degrees, the water leakage quantity control in 90-degree pouring is realized, and the contradiction problem between the expansion air release and the water leakage quantity in 90-degree pouring generated in the water boiling is solved;

(2) The device can be realized by using the cavity and the pressing block, has the advantage of simplified structure, and is beneficial to cost control.

In this embodiment, the accommodating cavity 312 may be disposed in the kettle body 2, at this time, the first air guide port 3121 may be communicated to the spout 21 through an independent air channel, but as a further improvement of simplified structure, the accommodating cavity 312 may be disposed in the valve support 31 and surrounded by the outer edge 311, and an air channel bypass hole communicating with the drain channel is formed in the valve support portion above the outer edge 311, and the first air guide port 3121 is communicated 22 to the spout 21 through the air channel bypass hole and the drain channel. The improvement scheme makes full use of the valve bracket 31 to realize both water path control and air path control, and meanwhile, the water path and the air path are multiplexed, so that the design complexity can be greatly improved, and the aim of simplifying the cost control by further improving the structure is fulfilled.

Further, a sealing ring 3111 may be disposed on the outer periphery of the outer edge 311, where the sealing ring 3111 is used to seal a gap between the outer edge 311 and the drain passage 22 when the valve holder 31 is in the first position, so as to avoid water leakage due to poor sealing caused by hard contact. The seal ring 3111 is preferably made of silica gel, and the water ditch phenomenon of the seal ring is improved by utilizing the characteristic that the silica gel is not easy to be stained with water.

As another improvement, the valve bracket 31, the elastic body 32, the water drain channel 22 and the water outlet switch 5 can be arranged on the kettle cover 3, the kettle cover 3 and the kettle body 2 can be detached, and the water outlet switch 5 is pressed to move the valve bracket 33 away from the first position. According to the improved scheme, the movable parts which are easy to wear are integrated on the kettle cover 3, the kettle cover 3 and the kettle body 2 are detachable, and when a user wears the movable parts for a long time and the performance is reduced, the kettle cover 3 can be directly replaced to achieve the maintenance purpose, so that convenience is provided for later maintenance, and the after-sale maintenance cost is saved.

As a third modification, in order to ensure that the pressing block 313 is stopped when it moves or rolls halfway, in this embodiment, a second elastic body 3124 is further provided in the accommodating chamber 312 for applying an elastic force to the pressing block 313 toward the first air guide port 3121. In particular, the second elastomer 3124 may be a stainless steel spring to avoid water contamination.

Example 2

The first solution of the utility model has structural advantages but brings about a downslip of reliability, while the second embodiment of the utility model is focused on meeting reliability performance aimed at serving medium-to-high markets.

Fig. 7 to 10 illustrate a second embodiment of the present utility model, which is most reliable in addition to solving the above contradictory problems. Specifically, fig. 7 shows the overall sectional structure of the insulating electric kettle with excellent reliability. In comparison with example 1, the kettle has a base, a kettle body 2, a spout 21, a kettle lid 3, a valve holder 31, a first elastic body 32, a water heating part and a water discharge passage 22 connected to the spout 21. And the valve bracket 31 also serves as a member for opening and closing the drain passage 22. The first elastic body 32 is a stainless steel spring, and provides an upward pulling force to the valve bracket 31 by its own elasticity to normally maintain the valve bracket 31 in the first position. As shown in fig. 7, the side wall of the valve holder 31 has an outer edge 311 protruding outwards, and when the valve holder 31 is pulled to the first position, the outer edge 311 abuts the spout of the drain channel 22 to block the drain path between the inside of the jug and the drain channel 22. When an external force presses down, for example, presses the valve holder 31 downward, the valve holder 31 moves away from the first position, the outer edge 311 no longer blocks the orifice of the drain passage 22, and the drain path is opened.

The components for realizing the water discharge and 90 ° and above pouring closed channel in embodiment 2 mainly depend on the discharge channel 33, the accommodating chamber 312, the pressing block 313, the valve core 314, the second elastic body 316 and the valve body 315 shown in fig. 8. Wherein the first orifice 331 of the exhaust channel 33 is communicated with the spout, and the second orifice 332 of the exhaust channel is communicated with the interior of the kettle. The valve core 314 passes through the cavity from the inside of the accommodating cavity 312 downwards, and the part passing through the cavity is connected with the valve body 315, for example, clamped, and the valve body 315 and the valve core 314 form an inverted T structure for blocking the second pipe orifice 332. The pressing block 313 and the second elastic body 316 are disposed in the accommodating cavity 312, the pressing block 313 is disposed on top of the valve core 314, and the second elastic body 316 is used for providing an upward force to the valve core 314.

Referring to fig. 9, when the electric kettle is in a water boiling state or in a standing state, the pressing block 313 is positioned at the top of the valve core 314 due to gravity, the valve core 314 and the valve body 315 are simultaneously pressed downwards, the weight of the pressing block 313 is larger than the elastic force of the second elastic body 316, the valve body 315 is driven to be far away from the second pipe orifice, a gap (the second pipe orifice 332) between the valve body 315 and the valve bracket 31 is opened, and expansion air is discharged from a channel formed by the second pipe orifice 332 during water boiling, so that the pressure in the kettle body is released.

Referring to fig. 10, when the kettle is toppled over by 90 ° or more, the pressing block 313 is moved to the upper portion of the accommodating cavity 312 under the action of gravity and the acting force of the second elastic body 316 is added, the pressing block 313 leaves the valve core 314, the valve core 314 and the valve body 315 are pushed by the action of spring force all the time, so that the valve body 315 is restored to block the second pipe orifice 332, the valve body 315 and the valve bracket 31 keep in contact and airtight, at this time, the air exhaust channel is blocked, the water leakage amount in the kettle body is controlled, and water can be poured out only after the water outlet switch is opened.

Compared with the prior art, the insulating electric kettle of the embodiment has the following advantages:

(1) Not only solves the contradiction problem between the expansion air release generated during water boiling and the water leakage amount during 90-degree pouring, but also solves the injection problem during water pouring just after boiling;

(2) The control plugging part (valve body) and the rebound control part (second elastomer) are separately arranged to improve the reliability;

(3) The second elastomer is arranged in the cavity to be isolated from the air channel, so that the aging speed of the elastomer is greatly slowed down, and the rebound reliability is ensured;

(4) Energy saving and environment protection, and can keep the temperature above 60 ℃ for six hours after water boiling.

As a modification, to further improve the reliability, the sealing surface of the valve body 315 for sealing the second nozzle is configured as an inclined surface, where the inclined surface may be designed as an inclined surface capable of guiding the water droplets to slide back into the kettle, for example, gradually gathering from bottom to top. In this improvement, the water droplets (if any) condensed by the expansion gas are guided to fall back into the kettle through the inclined surface of the blocking surface without accumulating on the blocking surface, so that the scale phenomenon of the blocking surface can be improved, and the reliability can be enhanced. On this basis, can also design the valve body as the silica gel material, utilize the difficult water property of soaking of silica gel to further avoid water to remain.

More preferably, the top of the accommodating cavity 312 is further provided with a pit 318 for the pressing block 313 to be partially sunk in when the electric kettle is poured to be more than or equal to 90 degrees, so that the pressing block can be stably positioned at the upper part in the cavity when the electric kettle is poured to be more than or equal to 90 degrees, and the reliability is further enhanced.

As another solution for improving reliability, the second elastic body 316 may be a stainless steel spring, so that on one hand, water pollution is avoided by using the stainless steel characteristic, on the other hand, the consistency of the spring is good, consistency defects caused by vulcanization or other chemical processes can be avoided, and performance gap and fluctuation of production batches are reduced. When the second elastic body 316 is a stainless steel spring, the spring can be disposed above the valve core 314 in a pulling manner, or can be disposed below the valve core 314 in a pushing manner, and in consideration of the influence of the long-time pulling state on the elastic life of the spring, the pushing manner can be preferably adopted, at this time, the top edge of the valve core 314 is disposed to protrude outwards to form an outer eave 317, and the spring is sleeved on the valve core 314 and two ends of the spring are respectively abutted against the outer eave 317 and the bottom of the accommodating cavity 312.

On the premise of ensuring reliability, for the sake of structural simplification, the exhaust channel 33, the accommodating cavity 312, the pressing block 313, the valve core 314, the valve body 315 and the second elastic body 316 may be disposed in the valve support 31 and surrounded by the outer edge 311, and the first pipe orifice 331 is disposed at a valve support portion above the outer edge and is communicated with the drain channel 22, and the first pipe orifice is communicated to the spout 21 through the drain channel 22. Both waterway control and air path control are performed by the valve holder 31, and waterway and air path are multiplexed. On this basis, a sealing ring can be arranged on the periphery of the outer edge 311 for flexible sealing. In this embodiment, the valve support 31, the first elastic body 32, the drainage channel 22 and the pressing switch are all arranged on the kettle cover 3, the kettle cover and the kettle body are detachably arranged, and the pressing switch is pressed to move the valve support away from the first position, so that the purposes of convenient later maintenance and maintenance cost control are achieved.

Example 3

The third solution of the present utility model also solves the reliability problem, with only slightly lower performance than the second solution. Fig. 11 to 15 depict a third embodiment of the present utility model.

Fig. 11 shows an overall sectional structure of the insulating electric kettle of the present utility model. Compared with the embodiments 1 and 2, the kettle comprises a base 1, a kettle body 2, a kettle nozzle 21, a kettle cover 3, a valve bracket 31, a first elastic body 32, a water heating component and a water draining channel 22 connected with the kettle nozzle 21, and the details are not repeated here.

The components for realizing the water boiling exhaust, 90 ° and above pouring closing passage in embodiment 3 mainly depend on the exhaust passage 33, the briquette assembly 34, and the second elastic body 316 shown in fig. 12. Wherein the first nozzle 331 of the exhaust channel 33 is communicated with the spout 21, and the second nozzle 332 of the exhaust channel 33 is communicated with the interior of the kettle. The side wall of the press block assembly has an outwardly protruding flange 341 for plugging the second nozzle 332, inside which the press block 35 is arranged.

Referring to fig. 13, when the electric kettle is in a water boiling state or is in a standing state, the pressing block 35 presses down the pressing block assembly 34 due to gravity, the gravity of the pressing block 35 is larger than the elastic force of the second elastic body 316, the flange 341 is far away from the second pipe orifice 332, the gap between the pressing block assembly 34 and the valve bracket 31 is opened, and the expansion air passes through the exhaust channel 33 during water boiling, so that the internal pressure of the kettle body is relieved.

Referring to fig. 14, when the kettle is toppled over by 90 ° or more, the pressing block assembly 34 adds the action force of the second elastic body 316 under the action of gravity and moves to the upper part in the bracket hole, the pressing block assembly 34 is always forcefully pushed to the valve bracket 31 under the action of the elastic action force of the second elastic body 316 and the gravity of the pressing block assembly, the flange abuts against the valve bracket 31 to block the second pipe orifice 332, the exhaust channel 33 is blocked, the water leakage amount in the kettle body is controlled, and water can only be poured out after the water outlet switch is opened.

Compared with the prior art, the insulating electric kettle of the embodiment has the following advantages:

(1) Not only solves the contradiction problem between the expansion air release generated during water boiling and the water leakage amount during 90-degree pouring, but also solves the injection problem during water pouring just after boiling;

(2) The sealing component (valve body) is controlled to be separated from the rebound component (second elastomer) to improve reliability.

In this embodiment, the second elastic body 316 may also provide the elastic force in a pull-up form or a push-up form, and preferably, the elastic life is prolonged by pushing, specifically, a relatively fixed press block bracket 36 may be disposed below the second nozzle 332, and on the basis of the press block bracket 36, the press block assembly 34 is fixed on the press block bracket 36 through the second elastic body 316, and a through hole communicating with the second nozzle 332 is formed at the bottom of the press block bracket 36. At this time, since the second elastic body 316 is exposed to the gas path, a stainless steel spring is preferably used to avoid water pollution.

As a modification, the surface of the flange 341 for blocking the second nozzle 332 may be configured as a first inclined surface to guide the water droplets (if any) condensed by the expansion gas to fall back into the kettle without accumulating on the blocking surface, thereby improving the scale phenomenon of the blocking surface.

On the basis, further, as shown in fig. 12, the inclined surface may be formed by a first sealing ring 3411, wherein the first sealing ring 3411 is made of silica gel, and at this time, when the insulating electric kettle is toppled over at 90 degrees, the air exhaust channel is closed by the pressing block component and the valve bracket, so as to form a closed channel. The sealing method of the scheme is that the contact surface of the plastic part (valve bracket) and the sealing ring is adopted for control, the sealing reliability is high, and the effect is good. Meanwhile, because the sealing ring is made of silica gel, water cannot be accumulated on the surface to form scale accumulation. The silica gel material can resist high temperature and is not easy to produce aging phenomenon. Therefore, the scheme has higher reliability and long service life. Alternatively, the inclined surface may be configured to be integrally formed with the housing of the pressure block assembly 34, as shown in fig. 15, such that when the insulating electric kettle is tipped at 90 °, the pressure block assembly and the valve holder close the vent passage to form a closed passage. The sealing method is completed by adopting the contact surface of the plastic part (the valve bracket) and the plastic part (the outer wall of the pressing block assembly), and the sealing reliability is highly influenced by the flatness, the deformation and the like of the valve bracket and the pressing block assembly, so that the contact surface is possibly not tightly matched. In addition, when the valve is used for a long time, scale is likely to be accumulated on the surface of the plastic part, so that the surface is uneven, and the phenomenon of gap water leakage caused by insufficient tight contact surface between the valve bracket and the outer surface of the pressing block assembly occurs.

As another improvement, see fig. 12, the pressing block 35 may be designed to be disposed in a receiving cavity inside the pressing block assembly 34 and have a moving space, the inner sidewall of the receiving cavity is configured as a second inclined surface 342, the second inclined surface 342 is used for guiding the pressing block 35 to move toward the direction of the flange 341 approaching the second pipe orifice 332 when the electric kettle is tilted to be more than or equal to 90 °, and at this time, the pressing block 35 is configured as an inverted round table adapted to the second inclined surface 342. In this modification, the second inclined surface 342 can make the pressing block 35 stably located at the upper portion in the cavity when it is tilted by 90 °, enhancing reliability.

Also, in embodiment 3, for the sake of simplicity of construction, the pressure block holder 36 is fixed below the valve holder 31, the exhaust passage 33, the pressure block assembly 34, and the second elastic body 316 are provided in the valve holder 31 and surrounded by the outer edge 311, and the first nozzle 331 is opened at a valve holder portion above the outer edge 311 and communicates with the drain passage 22, and the first nozzle 331 communicates with the spout 21 through the drain passage 22. Further, a second seal ring 3111 is also provided around the outer periphery 311 for flexible sealing. And the valve bracket 31, the first elastic body 32 and the water drain channel 22 are arranged in the kettle cover 3, the kettle cover 3 and the kettle body 2 are detachably arranged, the kettle cover is further provided with the press switch 5, and the press switch 5 is pressed to move the valve bracket 31 away from the first position so as to facilitate later maintenance and replacement.

In the embodiments of the present utility model, the pressing block may be a steel column, a steel ball, or other materials.

The above-described embodiments are only a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments, and are also within the scope of the claims of the present utility model.

Claims (10)

1. A heat-preservation electric kettle,

comprises a kettle body, a kettle cover, a kettle nozzle, a water heating component, a valve bracket, a first elastomer and a drainage channel connected with the kettle nozzle;

the first elastic body is used for maintaining the valve bracket at a first position in a normal state, blocking a drainage path between the interior of the kettle and the drainage channel when the valve bracket is at the first position, and moving away from the first position under the action of external force so as to open the drainage path;

the method is characterized in that:

the device also comprises an exhaust passage, a briquetting component and a second elastomer;

the first pipe orifice of the exhaust channel is communicated with the kettle mouth, and the second pipe orifice of the exhaust channel is communicated with the kettle; the side wall of the pressing block assembly is provided with a flange which protrudes outwards and is used for blocking the second pipe orifice, a pressing block is arranged in the pressing block assembly, the pressing block assembly moves to enable the flange to block the second pipe orifice under the elastic action of a second elastic body when the electric kettle is tilted to be more than or equal to 90 degrees, and the pressing block is pressed down by the gravity under the upright state of the electric kettle so as to drive the pressing block assembly to be away from the second pipe orifice.

2. A thermal insulating electric kettle according to claim 1, characterized in that:

the pressing block assembly is fixed on the pressing block support through a second elastic body, and the pressing block support is provided with a through hole communicated to the second pipe orifice.

3. A thermal insulating electric kettle according to claim 2, characterized in that: the second elastic body is a stainless steel spring.

4. A thermal insulating electric kettle according to claim 1, characterized in that: the face of the flange for plugging the second nozzle is configured as a first inclined face.

5. The insulating electric kettle according to claim 4, wherein:

the inclined surface is formed by a first sealing ring; or alternatively

The inclined surface is configured to be integrally formed with the housing of the briquetting assembly.

6. A thermal insulating electric kettle according to claim 1, characterized in that: the briquetting is located in the accommodation chamber of briquetting subassembly inside and has the space of removal, the inside wall configuration of accommodation chamber is the second inclined plane, the second inclined plane is used for guiding the briquetting to be close to the direction of second mouth of pipe towards the flange under the insulating pot is emptyd to not less than 90 degrees state.

7. The insulating electric kettle according to claim 6, wherein: the compacts are configured as cylindrical, spherical or inverted cones.

8. A thermal insulating electric kettle according to claim 2, characterized in that:

the side wall of the valve support is provided with an outer edge protruding outwards, and the valve support seals a drainage path between the inside of the kettle and the drainage channel through the abutting of the outer edge and the drainage channel;

the pressing block support is fixed below the valve support, the exhaust channel, the pressing block assembly and the second elastic body are arranged in the valve support and surrounded by the outer edge, the first pipe orifice is arranged at the position of the valve support above the outer edge and is communicated with the drainage channel, and the first pipe orifice is communicated to the kettle nozzle through the drainage channel.

9. The insulating electric kettle as claimed in claim 8, wherein: the outer periphery of the outer edge is provided with a second sealing ring for sealing a gap between the outer edge and the drain channel when the valve holder is in the first position.

10. The insulating electric kettle as claimed in claim 8, wherein:

the valve support, the first elastic body and the drainage channel are all arranged on the kettle cover, the kettle cover and the kettle body are detachably arranged, the kettle cover is further provided with a pressing switch, and the pressing switch is pressed to move the valve support away from the first position.

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