Anti-overflow electric kettle

Abstract

The utility model relates to an anti-overflow electric kettle, which comprises a kettle body and a kettle cover, a water containing inner cavity is arranged in the kettle body, the kettle cover comprises an upper cover and a lower cover, and a cover cavity is formed between the upper cover and the lower cover, the anti-overflow electric kettle is characterized in that a C-shaped steam pipe is arranged in the cover cavity and is arranged along the side wall of the cover cavity in a surrounding manner; the opening of the first end of the steam pipe faces downwards and is communicated with the water containing inner cavity, and the opening of the second end of the steam pipe faces upwards and is communicated with the external environment. The steam pipe arranged in the cover cavity is used for exhausting steam and relieving pressure, due to the fact that the steam pipe surrounds the side wall of the cover cavity, after the kettle body topples over, water in the water containing inner cavity cannot overflow from the steam pipe rapidly, and the steam pipe is low in design cost and safe and light in the using process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric kettle, in particular to a kind of anti-overflow electric kettle. BACKGROUND

[0002] The existing electric kettle's pour anti-overflow function, usually adopts gravity piece sealing, such as using weight sealing mode, when kettle body is poured, weight seals steam hole under the action of gravity, avoids liquid in kettle to overflow along steam hole. And weight is relatively heavy, when pouring water or kettle cover is taken and placed, weight will produce knocking abnormal sound, user is inconvenient to use;And weight cost is higher, and due to durable wear and tear, it can cause poor function. SUMMARY

[0003] The utility model provides a simple structure and can effectively prevent the anti-overflow electric kettle of hot water overflow, and the anti-overflow electric kettle is low in cost, safe and light.

[0004] The utility model provides a simple structure and can effectively prevent the anti-overflow electric kettle of hot water overflow, and the anti-overflow electric kettle is low in cost, safe and light.

[0005] In order to improve the anti-overflow effect, the water in the water cavity is filled to the highest water level line, and the kettle body is in the state of pouring, the height of the highest pouring liquid surface formed in the water cavity does not exceed the highest height of the inner edge of the steam pipe. When the kettle body is poured, the steam pipe is in the state of close to vertical, and the water in the kettle body flows into the steam pipe from the first end of the steam pipe. As long as the liquid level height in the kettle after pouring does not exceed the highest height of the inner edge of the steam pipe, the water in the kettle body cannot flow out from the second end of the steam pipe.

[0006] In order to facilitate the reflux of water in the steam pipe to the inside of the kettle, the height of the first end of the steam pipe is lower than the height of the second end of the steam pipe in the vertical state of the kettle body. After the kettle body is poured, a certain amount of water will be stored in the steam pipe or liquid water will be formed in the steam pipe during the boiling process of water. Since the first end of the steam pipe is lower than the second end of the steam pipe, the water in the steam pipe will flow into the inside of the kettle through the first end of the steam pipe, ensuring the hygiene of the steam pipe.

[0007] In order to make the highest height of the inner edge of the steam pipe higher than the liquid level in the kettle after the kettle is poured, the steam pipe corresponds to an angle of a circle not less than 350 degrees. The steam pipe is arranged around the inside of the cover cavity. When the kettle is poured, the water in the kettle flows into the steam pipe from the first end of the steam pipe. As long as the highest height of the inner edge of the steam pipe is higher than the liquid level in the kettle, the water in the kettle will not flow out of the steam pipe. In other embodiments, the steam pipe corresponds to an angle of a circle greater than 360 degrees. The steam pipe is arranged around the whole cover cavity so that the highest height of the inner edge of the steam pipe can reach a preset maximum value. The first end and the second end of the steam pipe can be arranged at any position of the side wall of the cover cavity.

[0008] In order to facilitate the processing of the steam pipe, the steam pipe corresponds to an angle of a circle of 350-359 degrees. The outer peripheral wall of the kettle is provided with handles arranged oppositely. The second end of the steam pipe is arranged at the side wall of the cover cavity farthest from the handles. When the angle of the circle corresponding to the steam pipe is less than 360 degrees, the two ends of the steam pipe can be respectively provided with upward steam outlets and downward steam inlets. When the angle of the circle corresponding to the steam pipe is less than 360 degrees, the kettle is poured so that the second end of the steam pipe is at the highest point of the whole steam pipe. At this time, the highest height of the inner edge of the steam pipe is at the lowest. Under this premise, the second end of the steam pipe is arranged at the side wall of the cover cavity farthest from the handles. Due to the limiting of the handles, the second end of the steam pipe will not be at the highest point. Therefore, the angle of the circle corresponding to the steam pipe is slightly less than 360 degrees, which does not affect the highest height of the inner edge of the steam pipe.

[0009] Preferably, the lower cover includes a lower cover bottom plate and a lower cover side plate extending upward from the periphery of the lower cover bottom plate. The upper cover and the lower cover enclose the cover cavity. The lower cover side plate constitutes the side wall of the cover cavity.

[0010] In order to facilitate steam outlet, the first end of the steam pipe is provided with a first steam inlet opening downward. The lower cover bottom plate is provided with a second steam inlet corresponding to the first steam inlet. The second end of the steam pipe is provided with a first steam outlet opening upward. The upper cover is provided with a second steam outlet corresponding to the first steam outlet.

[0011] In order to reduce the steam outlet of the second steam outlet, a condensing mechanism is arranged below the lower cover. The condensing mechanism and the lower cover bottom plate of the lower cover jointly enclose a condensing cavity. The condensing mechanism is provided with a through hole communicating the condensing cavity and the water-containing inner cavity.

[0012] Preferably, the condensing mechanism includes a condensing bottom plate and a condensing side plate extending upward from the periphery of the condensing bottom plate. The upper end of the condensing side plate is in contact with the bottom plate.

[0013] In order to facilitate the backflow of water in the condensing cavity, the condensing bottom plate is concave downward to form a lower concave part. The through hole is located at the lowest part of the lower concave part.

[0014] In order to fix the steam pipe, the upper surface of the lower cover extends upwardly with a support frame for supporting the steam pipe, and the support frame is provided with an upwardly opening support groove. The steam pipe is arranged in the support groove and is not easy to shake.

[0015] Compared with the prior art, the steam pipe arranged in the cover cavity is used for steam exhaust and pressure relief generated by normal water boiling. Since the C-shaped steam pipe is arranged around the side wall of the cover cavity, when the kettle body is tilted, no matter how the kettle cover is tilted, the opening of the first end of the C-shaped steam pipe is either lower than the highest point of the C-shaped steam pipe or located at the highest point of the C-shaped steam pipe. If part of the water in the water containing cavity enters the steam pipe from the opening of the first end of the C-shaped steam pipe, the water will not finally flow out from the opening of the second end of the C-shaped steam pipe (from the principle, the pressure in the water containing cavity needs to be higher than one atmosphere in order to press the water over the highest point of the C-shaped steam pipe and finally flow out from the opening of the second end). Therefore, when the kettle body is tilted, no matter how the kettle cover is tilted, the hot water in the water containing cavity will not quickly overflow from the steam pipe C-shaped to scald the user.

[0016] The anti-overflow structure of the kettle is simple and effective, has low implementation cost, can effectively prevent hot water from overflowing, and is safe and light in structure, and is particularly suitable for an electric kettle with a spout connected to the lower part of the kettle body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic view of an anti-overflow electric kettle in the embodiment of the present application;

[0018] Figure 2 FIG. 2 is a structural schematic view of a kettle cover in the embodiment of the present application; Figure 1

[0019] Figure 3 FIG. 3 is an exploded schematic view of the kettle cover in the embodiment of the present application; Figure 2

[0020] Figure 4 FIG. 4 is a sectional view of the kettle cover in the embodiment of the present application; Figure 2

[0021] Figure 5 FIG. 5 is a structural schematic view of a lower cover in the embodiment of the present application; Figure 3

[0022] Figure 6 FIG. 6 is a structural schematic view of the lower cover and the steam pipe in cooperation in the embodiment of the present application; Figure 3

[0023] Figure 7 FIG. 7 is a schematic view of the water level in the kettle after the kettle is tilted in the embodiment of the present application. DETAILED DESCRIPTION

[0024] ​​​​​The utility model is further described in detail below with reference to the drawings.

[0025] As Figures 1 to 7 shown in the preferred embodiment of the utility model anti-overflow electric kettle, the anti-overflow electric kettle includes kettle body 1, upper cover 2, lower cover 3 and steam pipe 4, kettle body 1 has water containing inner cavity 1a inside; upper cover 2 and lower cover 3 form cover cavity 2a between them, cover cavity 2a is equipped with C-shaped steam pipe 4, and the water vapor generated in water containing inner cavity 1a is discharged to the external environment through steam pipe 4. The spout in the electric kettle of the embodiment is connected to the lower position of the kettle body, and the sealing element that can seal the spout is arranged between the spout and kettle body 1, and the detailed structure can be referred to the prior application of the applicant.

[0026] As Figure 3 , 4 shown, lower cover 3 is connected below upper cover 2, and the lower surface of upper cover 2 is provided with a plurality of clamping holes 23 protruding downward; lower cover 3 includes lower cover bottom plate 31 and lower cover side plate 32 extending upward from the periphery of lower cover bottom plate 31, and the inner peripheral wall of lower cover side plate 32 is provided with a plurality of buckles 322 matched with the above-mentioned clamping holes 23, and the plurality of buckles 322 are arranged along the circumference of lower cover side plate 32; the buckles 322 of lower cover 3 are clamped into the clamping holes 23 of upper cover 2 to realize the connection of upper cover 2 and lower cover 3, at this time, the upper end of lower cover side plate 32 is in contact with the lower surface of upper cover 2, and upper cover 2, lower cover bottom plate 31 and lower cover side plate 32 enclose the above-mentioned cover cavity 2a. The outer periphery of lower cover side plate 32 is further provided with sealing ring 7.

[0027] As Figure 3 , 6 shown, the first end of steam pipe 4 is bent downward to form first steam inlet 41 with the opening downward, the lower cover bottom plate 31 is provided with second steam inlet 311 corresponding to the communication of first steam inlet 41, and the first end of steam pipe 4 is inserted into second steam inlet 311; the second end of steam pipe 4 is bent upward to form first steam outlet 42 with the opening upward, and upper cover 2 is provided with second steam outlet 21 corresponding to the communication of first steam outlet 42. When the water in kettle body 1 generates steam, the steam enters first steam inlet 41 of steam pipe 4 through second steam inlet 311 on lower cover bottom plate 31, and then enters the external environment through second steam outlet 21 on upper cover 2 from first steam outlet 42 of steam pipe 4.

[0028] As Figure 5 , 6As shown, the upper surface of the lower cover bottom plate 31 extends upwardly with a support frame 312 for supporting the steam pipe 4, and the support frame 312 is provided with a plurality of support grooves 3121 opening upwardly, the steam pipe 4 is placed in the support grooves 3121 so that the position of the steam pipe 4 in the cover cavity 2a is fixed; in particular, along the steam direction of the steam pipe 4, the height of the lowest point of the support grooves 3121 gradually increases, so that the steam pipe 4 is arranged in a spiral upward. That is, in the upright state of the kettle body 1, the height of the lowest point of the first end of the steam pipe 4 is less than the height of the lowest point of the second end of the steam pipe 4. After the kettle body 1 is poured, a certain amount of water will be stored in the steam pipe 4 or liquid water will be formed in the steam pipe 4 during the boiling of water, and because the first end of the steam pipe 4 is lower than the second end of the steam pipe 4, after the kettle body 1 is upright, the water in the steam pipe 4 will flow into the interior of the kettle body through the first end of the steam pipe 4.

[0029] In order to further ensure the anti-overflow effect, the steam pipe 4 is arranged as close as possible to the side wall of the cover cavity 2a, when the water storage cavity 1a is filled with water to the highest water level and the kettle body 1 is in a pouring state, the height H1 of the highest pouring liquid surface formed in the water storage cavity 1a does not exceed the highest height H2 of the inner edge of the steam pipe 4, as shown. Figure 7 As shown, after the kettle body 1 is poured, the steam pipe 4 is in a state close to vertical, and the water in the interior of the kettle body flows into the steam pipe from the first end of the steam pipe 4. As long as the liquid surface height in the kettle after pouring does not exceed the highest height of the inner edge of the steam pipe 4, the water in the interior of the kettle body cannot flow out from the second end of the steam pipe 4. It is worth noting that the closer the steam pipe 4 is to the side wall of the cover cavity 2a, the higher the highest height of the inner edge of the steam pipe 4 after the kettle body 1 is poured; similarly, the diameter of the kettle mouth is greater than the diameter of the kettle body, so the highest height of the inner edge of the steam pipe 4 after the kettle body 1 is poured is more likely to be greater than the liquid surface height in the kettle after pouring. Therefore, in order to achieve good anti-overflow effect, the steam pipe 4 needs to be close to the side wall of the cover cavity 2a, and at the same time, the diameter of the kettle mouth is slightly smaller than or equal to the diameter of the kettle body.

[0030] In this embodiment, the steam pipe 4 corresponds to a central angle of 350-359 degrees. Due to the limitation of processing conditions, only when the steam pipe 4 corresponds to a central angle less than 360 degrees, the two ends of the steam pipe 4 can be bent upward to form a steam outlet and downward to form a steam inlet, respectively. The central angle corresponding to the steam pipe 4 is less than 360 degrees, which will reduce the highest height of the inner edge of the steam pipe 4 corresponding to the steam pipe 4 at a certain pouring angle of the kettle body 1 to some extent; but as long as it is greater than the height of the highest pouring liquid surface formed in the water storage cavity 1a at that pouring angle. In other embodiments, the central angle corresponding to the steam pipe 4 can also be greater than 360 degrees. In this design, the steam inlet of the steam pipe 4 can penetrate through the lower cover side plate 32 and communicate with the interior of the kettle body 1, or the steam outlet of the steam pipe 4 can penetrate through the lower cover side plate 32 and communicate with the external environment.

[0031] To reduce the steam output from the second steam outlet 21, a condensing mechanism 5 is provided below the lower cover 3. The condensing mechanism 5 includes a condensing base plate 51 and a condensing side plate 50 extending upward from the periphery of the condensing base plate 51. The condensing base plate 51 is recessed downward to form a recessed portion 52, and a through hole 521 is provided at the lowest point of the recessed portion 52. A stud 34 is provided on the lower cover base plate 31 of the lower cover 3, and a connecting hole 511 corresponding to the stud 34 is provided on the condensing base plate 51. A screw passes through the connecting hole 511 and connects to the stud 34. The upper end of the condensing side plate 50 contacts the lower surface of the lower cover base plate 31. The condensing mechanism 5 and the lower cover base plate 31 of the lower cover 3 together form a condensing cavity 5a. The water vapor generated inside the kettle body 1 first passes through the through hole 521 and is condensed in the condensing cavity 5a. The condensed water flows back into the kettle body 1 through the through hole 521.

[0032] like Figure 3 , 4 As shown in Figure 5, a central shaft 33 extends upward from the center of the upper surface of the bottom plate 31 of the lower cover. A lid switch 6, which cooperates with the kettle body 1, is provided around the central shaft 33. The lid switch 6 includes two symmetrically arranged switch units 60. Each switch unit 60 includes an operating part 60 extending upward from the upper cover 2 into the lid cavity 2a, and a snap-fit ​​part 61 extending out of the lid cavity 2a from the lower cover side plate 32 of the lower cover 3. An elastic element (not shown in the figure) is provided between the outer wall of the central shaft 33 and the switch unit 60 to keep them moving away from each other. That is, in its natural state, the switch unit... The two switch units 60 tend to move radially outward along the central axis 33, and tend to move away from each other, so that the latching parts 61 on the switch units 60 remain extended out of the cover cavity 2a. Each switch unit 60 is provided with a pair of latching parts 61, which are spaced a certain distance apart from each other. The upper cover 2 is provided with an upwardly protruding dust cap 22 corresponding to the central axis 33. The side of the dust cap 22 is provided with a first clearance hole 221 for the operating part 60 to extend out. The lower cover 3 has a second clearance hole 321 on the lower cover side plate 32 for each latching part 61 to pass through. When the lid is closed, the user squeezes the two operating parts 60 relative to each other, and the operating parts 60 can retract radially inward along the central axis 33. At this time, each latching part 61 also retracts into the cover cavity 2a. After the lid is placed on the mouth of the pot, the pressure on the operating parts 60 is released, and each latching part 61 passes through the clearance hole 321 and latches with the internal structure of the pot body 1.

Claims

1. An anti-overflow electric kettle, comprising a kettle body (1) and a kettle cover, the kettle body (1) having a water containing cavity (1a) inside, the kettle cover comprising an upper cover (2) and a lower cover (3), a cover cavity (2a) being formed between the upper cover (2) and the lower cover (3), characterized in that: The cover cavity (2a) is provided with a C-shaped steam pipe (4), which is arranged around the side wall of the cover cavity (2a), the first end of the steam pipe (4) is open downward and communicates with the water containing cavity (1a), and the second end of the steam pipe (4) is open upward and communicates with the external environment.

2. The spilling-resistant electric kettle of claim 1, wherein: When the water containing cavity (1a) is filled with water to the highest water level and the kettle body (1) is in a pouring state, the height (H1) of the highest pouring liquid surface formed in the water containing cavity (1a) is not higher than the highest height (H2) of the inner edge of the steam pipe (4).

3. The spilling-resistant electric kettle of claim 1, wherein: In the vertical state of the kettle body (1), the height of the first end of the steam pipe (4) is lower than the height of the second end of the steam pipe (4).

4. The spilling-resistant electric kettle of claim 1, wherein: The steam pipe (4) corresponds to a central angle of 350-359 degrees; a handle (11) is arranged on the outer peripheral wall of the kettle body (1), and the second end of the steam pipe (4) is arranged at the side wall of the cover cavity (2a) farthest from the handle (11).

5. The spilling-resistant electric kettle of claim 1, wherein: The lower cover (3) comprises a lower cover bottom plate (31) and a lower cover side plate (32) extending upward from the periphery of the lower cover bottom plate (31), and the upper cover (2) and the lower cover (3) enclose the cover cavity (2a), and the lower cover side plate (32) constitutes the side wall of the cover cavity (2a).

6. The spilling-resistant electric kettle of claim 5, wherein: The first end of the steam pipe (4) has a first steam inlet (41) open downward, the lower cover bottom plate (31) is provided with a second steam inlet (311) corresponding to the first steam inlet (41) and communicating therewith; the second end of the steam pipe (4) has a first steam outlet (42) open upward, and the upper cover (2) is provided with a second steam outlet (21) corresponding to the first steam outlet (42) and communicating therewith.

7. The spilling-resistant electric kettle of claim 6, wherein: A condensing mechanism (5) is arranged below the lower cover (3), the condensing mechanism (5) and the lower cover bottom plate (31) of the lower cover (3) jointly enclose a condensing cavity (5a), and the condensing mechanism (5) is provided with a through hole (521) communicating the condensing cavity (5a) and the water containing cavity (1a).

8. The spilling-resistant electric kettle of claim 7, wherein: The condensing mechanism (5) comprises a condensing bottom plate (51) and a condensing side plate (50) extending upward from the periphery of the condensing bottom plate (51), and the upper end of the condensing side plate (50) is in contact with the lower cover bottom plate (31).

9. The spilling-resistant electric kettle of claim 8, wherein: The condensing bottom plate (51) is recessed downward to form a lower recess (52), and the through hole (521) is located at the lowest part of the lower recess (52).

10. The spilling-resistant electric kettle according to any one of claims 1-7, wherein: The upper surface of the lower cover (3) extends upward to have a support frame (312) for supporting the steam pipe (4), and the support frame (312) is provided with a support groove (3121) open upward.

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