Kettle lid assembly and liquid heating device

Abstract

The embodiment of the utility model provides a kettle cover assembly and a liquid heating device. The kettle cover assembly comprises a bottom cover, wherein a first air inlet and a second air inlet are formed in the bottom wall of the bottom cover; the upper cover is arranged at the top of the bottom cover, a buffer cavity is defined by the upper cover and the bottom cover, the first air inlet and the second air inlet are communicated with the buffer cavity, an exhaust channel is formed in the buffer cavity, an inlet of the exhaust channel is communicated with the buffer cavity, a steam outlet used for being communicated with the outside is formed in the first side of the kettle cover assembly, and an outlet of the exhaust channel is communicated with the steam outlet; wherein the exhaust channel extends from a first side of the kettle cover assembly to a second side opposite to the first side, an inlet of the exhaust channel is arranged close to the second side of the kettle cover assembly, and the first air inlet and the second air inlet are distributed in the two opposite sides of the exhaust channel. When the kettle body is in a toppling state, at least one of the first air inlet and the second air inlet can be located above the liquid level and communicated with the exhaust channel, and the toppling anti-overflow effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and particularly relates to a kettle lid assembly and a liquid heating device. Background Art

[0002] At present, in order to prevent water from overflowing when an existing electric kettle is tilted, an anti-tilting structure is designed. Most of the existing anti-tilting structures achieve tilting sealing by arranging steel balls inside the kettle lid. However, during use, since the steel balls can move and generate abnormal noises, the use experience is poor. Summary of the Utility Model

[0003] Therefore, the purpose of the present utility model is to provide a kettle lid assembly and a liquid heating device to at least solve one of the problems existing in the above-mentioned prior art or related technologies.

[0004] The first aspect embodiment of the present utility model provides a kettle lid assembly, which includes: a bottom lid, on the bottom wall of the bottom lid, a first air inlet and a second air inlet are provided; an upper lid, arranged on the top of the bottom lid and enclosing a buffer cavity with the bottom lid, the first air inlet and the second air inlet are communicated with the buffer cavity, an exhaust passage is provided in the buffer cavity, the inlet of the exhaust passage is communicated with the buffer cavity, a steam outlet for communicating with the outside is provided on the first side of the kettle lid assembly, and the outlet of the exhaust passage is communicated with the steam outlet; wherein, the exhaust passage extends from the first side of the kettle lid assembly to the second side opposite to the first side, the inlet of the exhaust passage is arranged close to the second side of the kettle lid assembly, and the first air inlet and the second air inlet are distributed on opposite sides of the exhaust passage.

[0005] The kettle lid assembly proposed in this aspect embodiment, compared with the anti-tilting kettle lid that blocks the air inlet with steel balls in the related art, cancels the steel balls, making the kettle lid assembly safer, without abnormal noises, and having a better use experience.

[0006] In addition, the steam in the kettle body can pass through the first air inlet, the second air inlet, the buffer cavity, and the exhaust passage for buffering in sequence, and then be discharged from the steam outlet of the kettle lid assembly, realizing the pressure balance inside and outside the kettle, avoiding the liquid in the kettle body from flowing out through the steam outlet, and realizing anti-overflow during tilting. Through the buffer structure, the buffering time of water and gas outlet is longer, water and gas are not easily mixed together, and since the flow rate of gas under high pressure is greater than that of liquid, it is more conducive to the gas discharging outwards, realizing the pressure balance inside and outside the kettle body, thereby preventing liquid from overflowing.

[0007] In some embodiments, the first air inlet and the second air inlet are symmetrically distributed about a line connecting the first side of the pot cover assembly and the second side of the pot cover assembly. In this way, when the pot cover assembly is closed on the kettle body assembly, no matter which side the pot cover assembly is tilted with the kettle body assembly, it can be ensured that one of the first air inlet and the second air inlet is at the same higher position, so as to quickly discharge steam and quickly achieve internal and external pressure balance of the kettle body, which is conducive to ensuring the anti-overflow effect of the liquid heating device after being tilted in different directions.

[0008] In some embodiments, the first air inlet and the second air inlet are arranged near the side wall of the bottom cover. In this way, after the kettle cover assembly tilts to one side along with the kettle body assembly, one of the first air inlet and the second air inlet will be at a higher position, which can prevent the liquid in the kettle body from entering the buffer cavity from the high air inlet, and is conducive to the steam in the kettle body quickly entering the buffer cavity through the high air inlet, and then being discharged through the exhaust channel and the steam outlet, which can quickly achieve the internal and external pressure balance of the kettle body and prevent the liquid from overflowing.

[0009] In some embodiments, the first air inlet and the second air inlet are arranged near the second side of the lid assembly relative to the center of the bottom cover. In this way, after the lid assembly tilts to one side along with the body assembly, the lower air inlet of the first air inlet and the second air inlet will not be too low, but a certain distance higher than the lower edge of the lid assembly in the tilted state, so that the liquid in the body can be prevented from flowing into the buffer cavity through the lower air inlet, thereby preventing the liquid from overflowing from the lid assembly.

[0010] In some embodiments, the inlet of the exhaust passage is located on the line connecting the first side of the kettle cover assembly and the second side of the kettle cover assembly. In this way, when the kettle cover assembly is closed on the kettle body assembly, no matter which side the kettle cover assembly is tilted with the kettle body assembly, the inlet of the exhaust passage is at the same high position, which can prevent liquid from easily entering the exhaust passage, thereby facilitating the anti-overflow effect of the liquid heating device after being tilted in different directions.

[0011] In some embodiments, a first shielding rib is further provided on the upper surface of the bottom wall of the bottom cover, the first shielding rib is arranged around the periphery of the first air inlet, and the first shielding rib has a first notch in the circumferential direction, the first notch is located on the side of the first shielding rib away from the entrance of the exhaust channel, and the top of the first shielding rib is in contact with the bottom wall of the upper cover; a second shielding rib is further provided on the upper surface of the bottom wall of the bottom cover, the second shielding rib is arranged around the periphery of the second air inlet, and the second shielding rib has a second notch in the circumferential direction, the second notch is located on the side of the second shielding rib away from the entrance of the exhaust channel, and the top of the second shielding rib is in contact with the bottom wall of the upper cover.

[0012] In these embodiments, after the gas and liquid enter the first air inlet and the second air inlet, they do not directly flow towards the exhaust passage, but are blocked by the blocking ribs. They need to flow out through the notch and then turn reversely to enter the inlet of the exhaust passage. The blocking ribs can play a buffering role. Due to the large difference in the flow rates of the gas and the liquid, it is beneficial to separate the steam and the liquid, enabling the steam to be discharged outwards through the steam outlet prior to the liquid and preventing the liquid from moving out of the kettle lid assembly.

[0013] In some embodiments, the exhaust passage includes at least two exhaust cavities, which are arranged in sequence from the first side to the second side of the kettle lid assembly and communicate with each other. Among them, the outlet of the exhaust passage is provided on the cavity wall of the exhaust cavity close to the first side of the kettle lid assembly, and the inlet of the exhaust passage is provided on the cavity wall of the exhaust cavity close to the second side of the kettle lid assembly.

[0014] In these embodiments, after the kettle lid assembly is tilted to one side along with the kettle body assembly, the buffer cavity and the at least two exhaust cavities can provide multiple buffers for the liquid, which is more conducive to separating the steam and the liquid, enabling the steam to pass through the at least two exhaust cavities prior to the liquid and be discharged outwards through the steam outlet, and preventing the liquid from moving out of the kettle lid assembly.

[0015] In some embodiments, at least two lower enclosures are provided on the upper surface of the bottom cover, and / or at least two upper enclosures are provided on the lower surface of the upper cover. Based on the situation that at least two lower enclosures are provided on the upper surface of the bottom cover, the top of each lower enclosure abuts against the lower surface of the upper cover, and each lower enclosure and the upper surface of the bottom cover and the lower surface of the upper cover together enclose an exhaust cavity. Based on the situation that at least two upper enclosures are provided on the lower surface of the upper cover, the bottom of each upper enclosure abuts against the upper surface of the bottom cover, and each upper enclosure and the upper surface of the bottom cover and the lower surface of the upper cover together enclose an exhaust cavity. Based on the situation that at least two lower enclosures are provided on the upper surface of the bottom cover and at least two upper enclosures are provided on the lower surface of the upper cover, the upper enclosures and the lower enclosures are distributed in one-to-one correspondence, the bottom of each upper enclosure abuts against the top of the corresponding lower enclosure, and each upper enclosure and the corresponding lower enclosure and the upper surface of the bottom cover and the lower surface of the upper cover together enclose an exhaust cavity.

[0016] In these embodiments, using the upper enclosures and / or the lower enclosures, together with the bottom cover and the upper cover, to enclose the exhaust cavity has a simple structure and is convenient for processing.

[0017] In some embodiments, at least two lower enclosures are provided on the upper surface of the bottom cover. The at least two lower enclosures are integrally formed with the bottom cover. At least two upper enclosures are provided on the lower surface of the upper cover. The at least two upper enclosures are integrally formed with the upper cover. The upper enclosures and the lower enclosures are distributed in a one-to-one correspondence. The bottom of each upper enclosure abuts against the top of the corresponding lower enclosure. Each upper enclosure, the corresponding lower enclosure, the upper surface of the bottom cover, and the lower surface of the upper cover together enclose an exhaust cavity. This is convenient for processing. Moreover, compared with separately providing an exhaust pipe installed in the buffer cavity and enclosing an exhaust passage through the exhaust pipe, it is possible to reduce components, save costs, and eliminate the installation process, thereby improving production efficiency.

[0018] In some embodiments, both the lower enclosures and the upper enclosures are annular enclosures. The annular upper enclosures and lower enclosures can be better docked together, facilitating interference fit between the two, and thus facilitating their sealed connection.

[0019] In some embodiments, a first inclined surface is provided at the bottom end of the upper enclosure, and a second inclined surface is provided at the top end of the lower enclosure. The first inclined surface and the second inclined surface abut against each other and are in interference fit.

[0020] In these embodiments, the contact surfaces where the upper enclosure and the lower enclosure abut against each other are both inclined surfaces. When the upper cover and the bottom cover are firmly connected together, the first inclined surface and the second inclined surface are in interference fit, resulting in slight plastic deformation, achieving tight fit and sealing of the exhaust cavity, and enhancing the sealing performance of the exhaust cavity.

[0021] In some embodiments, the outlet of the exhaust passage is provided on the bottom wall of the upper cover, the steam outlet is provided on the side wall of the upper cover. A surrounding plate is provided on the outer periphery of the outlet of the exhaust passage. The surrounding plate encloses a connecting passage. The top end of the surrounding plate is bent towards the direction where the steam outlet is located and connected to the side wall of the upper cover, so that the connecting passage is communicated with the steam outlet.

[0022] In these embodiments, by setting the outlet of the exhaust passage on the bottom wall of the upper cover, after the gas flows out of the exhaust passage, it will also flow upward into the connecting passage enclosed by the surrounding plate, and then flow out from the steam outlet, increasing the gas flow path and the buffering effect, and further preventing liquid from flowing out of the steam outlet. Moreover, such a design can make the steam outlet far away from the lower edge of the side wall of the upper cover, reducing the length of the side wall extending downward from the bottom wall of the upper cover, thereby reducing the thickness of the upper cover and the thickness of the kettle lid assembly.

[0023] In some embodiments, the outlet of the exhaust passage is provided on the wall surface of the upper enclosure near the first side of the kettle lid assembly, the steam outlet is provided on the side wall of the upper cover. The upper enclosure near the first side of the kettle lid assembly is integrally connected to the side wall of the upper cover, so that the steam outlet and the outlet of the exhaust passage are communicated.

[0024] In these embodiments, the steam outlet and the outlet of the exhaust passage are at the same height, and they are butt-connected and communicated. Moreover, the upper enclosure near the first side of the kettle lid assembly is directly integrally connected to the side wall of the upper lid, which can effectively avoid the occurrence of gaps between the steam outlet and the outlet of the exhaust passage, and has a good sealing effect. In addition, the structure of the upper lid is simple and convenient for processing.

[0025] In some embodiments, the upper surface of the bottom wall of the bottom lid includes two inclined surfaces, which are symmetrically distributed on both sides of the exhaust passage, and the ends of the two inclined surfaces close to the exhaust passage are higher than the ends away from the exhaust passage. The first air inlet is arranged at the edge of one inclined surface away from the exhaust passage, and the second air inlet is arranged at the edge of the other inclined surface away from the exhaust passage. In this way, the liquid in the buffer cavity can flow along the two inclined surfaces to the first air inlet and the second air inlet respectively, and flow back into the kettle body through the first air inlet and the second air inlet, avoiding the long-term accumulation of liquid in the buffer cavity.

[0026] In some embodiments, the upper surface of the bottom wall of the bottom lid includes inclined surfaces circumferentially distributed around the center of the bottom lid, and the inclined surfaces extend downward from the middle of the bottom lid to the edge of the bottom lid. The first air inlet and the second air inlet are arranged on the inclined surfaces and close to the side edge of the bottom lid. In this way, the liquid in the buffer cavity can flow along the inclined surfaces to the first air inlet and the second air inlet, and flow back into the kettle body through the first air inlet and the second air inlet, avoiding the long-term accumulation of liquid in the buffer cavity.

[0027] In some embodiments, a circumferentially distributed connection gap is formed between the upper lid and the bottom lid; the kettle lid assembly further includes a bottom lid sealing ring, which is sleeved on the outer peripheries of the upper lid and the bottom lid and covers the connection gap, and the bottom lid sealing ring is used for tightly fitting with the inner wall of the kettle body.

[0028] In these embodiments, a bottom lid sealing ring capable of sealing the connection gap between the upper lid and the bottom lid is provided at the connection between the upper lid and the bottom lid, improving the sealing performance of the buffer cavity.

[0029] In some embodiments, a circle of card slots is formed between the upper lid and the bottom lid, the connection gap is located at the bottom wall of the card slot, and the inner side of the bottom lid sealing ring has ribs adapted to the card slots, and the ribs are buckled in the card slots.

[0030] In these embodiments, the ribs of the bottom lid sealing ring are clamped in the card slots formed between the upper lid and the bottom lid, which is convenient for the fixed installation of the bottom lid sealing ring. The bottom lid sealing ring can cover the joint between the upper lid and the bottom lid to achieve sealing. Moreover, when the kettle lid assembly is covered on the kettle body assembly, the bottom lid sealing ring can also simultaneously achieve the sealing between the bottom lid and the top opening of the kettle body. One part realizes the sealing of two parts, improving the utilization rate of the part.

[0031] In some embodiments, mounting holes are provided on the upper cover, and fixing posts are provided on the bottom wall of the bottom cover. A fastener passes through the mounting hole and is inserted into the fixing post to clamp the upper cover and the bottom cover together. This is conducive to firmly connecting the two together.

[0032] In a second aspect embodiment of the present utility model, a liquid heating device is provided. The liquid heating device includes: a kettle body assembly, the kettle body assembly includes a kettle body with an opening at the top and a handle provided on the first side of the kettle body, and a water outlet is provided on the second side of the kettle body; a kettle lid assembly as in any one of the above embodiments, the kettle lid assembly covers the top opening of the kettle body, the steam outlet is located at one end of the kettle lid assembly close to the handle, and the inlet of the exhaust passage is located at one end of the exhaust passage close to the water outlet; a gas guiding passage, one end of the gas guiding passage is communicated with the steam outlet, and the other end of the gas guiding passage extends towards the bottom of the kettle body and is communicated with the outside.

[0033] For the liquid heating device provided in the embodiments of this aspect, due to having the kettle lid assembly of any one of the above embodiments, it thus has the beneficial effects of any one of the above embodiments, which will not be elaborated here.

[0034] Moreover, when installing the kettle lid assembly, the steam outlet is arranged opposite to the handle, and the inlet of the exhaust passage is located at one end of the exhaust passage close to the water outlet. Since the liquid heating device generally uses the handle as a fulcrum when tilted, no matter which side the liquid heating container is tilted towards, the positions of the first air inlet, the second air inlet, and the inlet of the exhaust passage are all conducive to the steam discharging outwards through the buffer cavity, the steam outlet, and the gas guiding passage prior to the liquid, quickly realizing the internal and external pressure balance of the kettle body, avoiding the danger of the steam inside the kettle body being unable to be discharged and the pressure being too high, and thus meeting the requirements of the liquid heating container in the anti-tilting state.

[0035] In some embodiments, the gas guiding passage is arranged in the handle or in the kettle body. It will not be exposed, and the appearance effect is good. Especially when the gas guiding passage is arranged in the handle, it will not occupy the internal space of the kettle body, facilitating the cleaning of the kettle body.

[0036] Other aspects and / or advantages of the general concept of the present utility model will be partially elaborated in the following description, and some will be clear from the description, or can be learned through the implementation of the general concept of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Through the description of the embodiments in conjunction with the following drawings, the above and other objects and features of the present utility model will become clearer. In the drawings:

[0038] Figure 1 A top view schematic diagram of a liquid heating device according to an embodiment of the present application is shown;

[0039] Figure 2 ShownFigure 1 Cross-sectional schematic view in the A-A direction;

[0040] Figure 3 Schematic structural view of a liquid heating device according to an embodiment of the present application in a tilted posture;

[0041] Figure 4 Schematic structural view inside the kettle lid assembly of a liquid heating device according to an embodiment of the present application in a tilted posture;

[0042] Figure 5 Schematic side view of a kettle lid assembly according to an embodiment of the present application;

[0043] Figure 6 is Figure 5 Cross-sectional schematic view in the B-B direction;

[0044] Figure 7 Schematic side view of a kettle lid assembly according to an embodiment of the present application;

[0045] Figure 8 is Figure 7 Cross-sectional schematic view in the C-C direction;

[0046] Figure 9 Schematic top view of a kettle lid assembly according to an embodiment of the present application;

[0047] Figure 10 Show Figure 9 A cross-sectional schematic view in the D-D direction;

[0048] Figure 11 Show Figure 9 Another cross-sectional schematic view in the D-D direction;

[0049] Figure 12 Schematic exploded view of a kettle lid assembly according to an embodiment of the present application;

[0050] Figure 13 Schematic exploded view of another kettle lid assembly according to an embodiment of the present application;

[0051] Figure 14 Schematic contour view of a buffer cavity according to an embodiment of the present application from a top view perspective;

[0052] Figure 15 Schematic contour view of an exhaust passage according to an embodiment of the present application from a top view perspective;

[0053] Figure 16 Schematic bottom view of a kettle lid assembly according to an embodiment of the present application;

[0054] Figure 17Shown Figure 16 Schematic cross-sectional view in the E-E direction;

[0055] Figure 18 Schematic structural view of the bottom cover showing an embodiment of the present application.

[0056] Figures 1 to 18 Explanation of the reference numerals in the drawings:

[0057] 10 Kettle lid assembly;

[0058] 110 Bottom cover; 111 First air inlet; 112 Second air inlet; 113 Lower enclosure; 1131 Second inclined surface; 114 First lower enclosure; 115 Second lower enclosure; 116 Inclined surface; 117 Transition plane, 118 Fixed column; 1191 First blocking rib; 1192 Second blocking rib;

[0059] 120 Upper cover; 121 Steam outlet; 122 Upper enclosure; 1221 First inclined surface; 123 First upper enclosure; 124 Second upper enclosure; 125 Enclosure panel; 126 Blocking rib, 127 Mounting hole, 128 Fastener;

[0060] 130 Buffer chamber;

[0061] 140 Exhaust passage; 141 Inlet; 142 Outlet; 143 First exhaust chamber; 144 Second exhaust chamber; 145 Vent pipe;

[0062] 150 Connection gap;

[0063] 160 Bottom cover sealing ring; 161 Rib;

[0064] 170 Card slot;

[0065] 180 Silicone steam pipe;

[0066] 190 Top cover;

[0067] 20 Kettle body assembly; 210 Kettle body; 211 Water outlet; 220 Handle; 230 Air guide channel. Detailed implementation manners

[0068] The following detailed implementation manners are provided to assist the reader in obtaining a comprehensive understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent after understanding the disclosure of the present application. For example, the order of operations described herein is merely exemplary and is not limited to those set forth herein, but may be changed as will be apparent after understanding the disclosure of the present application, except for operations that must occur in a specific order. Additionally, descriptions of features known in the art may be omitted for greater clarity and conciseness.

[0069] The features described herein can be implemented in various forms and should not be construed as limited to the examples described herein. Instead, the examples described herein are provided only to illustrate some of the many viable ways of implementing the methods, devices, and / or systems described herein, which will be apparent after understanding the disclosure of the present application.

[0070] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more of them.

[0071] Although terms such as "first", "second", and "third" may be used herein to describe various components, components, regions, layers, or parts, these components, components, regions, layers, or parts should not be limited by these terms. Instead, these terms are only used to distinguish one component, component, region, layer, or part from another component, component, region, layer, or part. Thus, a first component, first component, first region, first layer, or first part as referred to in the examples described herein may also be referred to as a second component, second component, second region, second layer, or second part without departing from the teachings of the examples.

[0072] In the specification, when an element such as a layer, region, or substrate is described as "on", "connected to", or "coupled to" another element, the element can be directly "on", directly "connected to", or "coupled to" the other element, or there may be one or more other elements therebetween. In contrast, when an element is described as "directly on", "directly connected to", or "directly coupled to" another element, there may be no other elements therebetween.

[0073] The terms used herein are only for describing various examples and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. The terms "comprising", "including", and "having" specify the presence of the recited features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. The term "plurality" represents any quantity of two or more.

[0074] The definitions of the orientation terms such as "upper", "lower", "top", and "bottom" in this application are based on the orientation of the product when it is placed upright in the normal use state, unless otherwise specified as being based on the orientation in the drawings.

[0075] Unless otherwise defined, all terms used herein, including technical and scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs after understanding this utility model. Unless explicitly defined as such herein, terms such as those defined in a general dictionary shall be interpreted as having a meaning consistent with their meaning in the context of the relevant field and this utility model, and shall not be interpreted idealistically or overly formally.

[0076] The following will be combined with Figures 1 to 18 to introduce the lid assembly 10 and the liquid heating device provided by the embodiments of this utility model. Among them Figure 4 , Figure 6 , Figure 8 and Figure 10 the extension direction of the line with an arrow in represents the general flow path of the gas.

[0077] As Figures 5 to 10 shown, an embodiment of the first aspect of this utility model provides a lid assembly 10, and the lid assembly 10 includes: a bottom cover 110, on the bottom wall of the bottom cover 110, a first air inlet 111 and a second air inlet 112 are provided; an upper cover 120, arranged on the top of the bottom cover 110, and enclosing a buffer cavity 130 with the bottom cover 110, the first air inlet 111 and the second air inlet 112 communicate with the buffer cavity 130, an exhaust passage 140 is provided in the buffer cavity 130, an inlet 141 of the exhaust passage 140 communicates with the buffer cavity 130, a steam outlet 121 for communicating with the outside is provided on the first side of the lid assembly 10, and an outlet 142 of the exhaust passage 140 communicates with the steam outlet 121; wherein, the exhaust passage 140 extends from the first side of the lid assembly 10 to the second side opposite to the first side, the inlet 141 of the exhaust passage 140 is arranged close to the second side of the lid assembly 10, and the first air inlet 111 and the second air inlet 112 are distributed on opposite sides of the exhaust passage 140.

[0078] For the lid assembly 10 proposed in the embodiments of this aspect, compared with the anti-tipping lid in the related art that plugs the air inlet with a steel ball, the steel ball is cancelled, making the lid assembly 10 safer, without abnormal noise, and having a better user experience.

[0079] In addition, the steam in the kettle body 210 can pass through the first air inlet 111, the second air inlet 112, the buffer cavity 130, and the exhaust passage 140 in sequence for buffering, and then be discharged from the lid assembly 10 through the steam outlet 121, realizing the pressure balance inside and outside the kettle, preventing the liquid in the kettle body 210 from flowing out through the steam outlet 121, and realizing anti-overflow during pouring. Through the buffer structure, the buffering time of water and gas is longer, water and gas are not easily mixed together, and since the flow rate of gas under high pressure is greater than that of liquid, it is more conducive to the gas discharging outward, realizing the pressure balance inside and outside the kettle body 210, thereby preventing liquid spillage.

[0080] In a specific application, such as Figure 3 , Figure 4 , Figure 6 , Figure 8 and Figure 10 shown, when the kettle lid assembly 10 is closed on the kettle body assembly 20, the first side of the upper lid 120 can be aligned with the handle 220 on one side of the kettle body 210, the second side of the upper lid 120 can be aligned with the water outlet 211 of the kettle body 210, the steam outlet 121 is arranged close to the handle 220, and the inlet 141 of the exhaust passage 140 is arranged close to the water outlet 211. In this way, after the liquid heating device is tilted, due to the relatively heavy handle 220, usually the handle 220 will contact the tabletop, causing the water outlet 211 to tilt upwards, such as Figure 3 and Figure 4 show the tilted postures of the liquid heating device. Since the exhaust passage 140 extends from the handle 220 to the water outlet 211, and the first air inlet 111 and the second air inlet 112 are distributed on opposite sides of the exhaust passage 140, in the case of the kettle body being tilted, one of the air inlets will necessarily be above the exhaust passage 140, and the other air inlet will be below the exhaust passage 140. Taking Figure 4 shown as an example, after the liquid heating device is tilted in this posture, the height of the second air inlet 112 is higher than the height of the first air inlet 111. The second air inlet 112 is at a relatively high position, above the liquid level in the kettle, and the inlet 141 of the exhaust passage 140 is also above the liquid level. Thus, the gas in the kettle body 210 can enter the buffer chamber 130 through the second air inlet 112, and then be discharged through the exhaust passage 140 and the steam outlet 121 under the action of air pressure, which is beneficial to quickly achieving pressure balance inside and outside the kettle body 210, thereby preventing a large amount of liquid from overflowing. The gas flow path can refer to the extended path of the arrowed line in Figure 4 . And the first air inlet 111 is at a relatively low position. After the liquid heating device is tilted, the liquid in the kettle body 210 may enter the buffer chamber 130 through the first air inlet 111. However, since the first air inlet 111 is lower than the exhaust passage 140 at this time, and the inlet 141 of the exhaust passage 140 is close to the water outlet 211 and at a relatively high position, above the liquid level, the liquid is not easily introduced into the exhaust passage 140, which can prevent a large amount of liquid from flowing out during tilting. Moreover, in addition to exhausting gas, the exhaust passage 140 can also increase the movement path of the liquid flowing out of the kettle lid assembly 10, extend the liquid outflow time, thereby preventing the liquid from easily flowing out of the kettle lid assembly 10 and increasing the anti-overflow effect. Through the multiple buffering of the buffer chamber 130 and the exhaust passage 140, it is beneficial to separate the steam from the liquid, enabling the steam to enter the buffer chamber 130 first and be discharged outward through the steam outlet 121, quickly achieving pressure balance inside and outside the kettle body 210 and preventing the liquid from flowing outwards.

[0081] Of course, when the liquid heating device is tilted to the other side, the anti-overflow effect can also be achieved. The principle is the same as that when the second air inlet 112 is located above. The main difference is that at this time, the first air inlet 111 is higher than the second air inlet 112.

[0082] To improve the anti-overflow effect, the installation positions of the first air inlet 111 and the second air inlet 112 can be optimized. Further, in some embodiments, such as Figure 4 、 Figure 6 、 Figure 8 and Figure 18 shown, the first air inlet 111 and the second air inlet 112 are symmetrically distributed with respect to the connection line between the first side and the second side of the lid assembly 10. In this way, when the lid assembly 10 is closed on the pot body assembly 20, no matter which side the lid assembly 10 tilts along with the pot body assembly 20, one of the first air inlet 111 and the second air inlet 112 can be ensured to be at a higher position, ensuring that the gas in the pot is communicated with the exhaust passage 140, so as to quickly discharge the steam and quickly achieve the internal and external pressure balance of the pot body 210, which is beneficial to ensuring the anti-overflow effect after the liquid heating device is tilted in different directions.

[0083] Further, as Figure 4 、 Figure 6 、 Figure 8 and Figure 18 shown, the first air inlet 111 and the second air inlet 112 are arranged close to the side wall of the bottom cover 110. In this way, after the lid assembly 10 tilts to one side along with the pot body assembly 20, one of the first air inlet 111 and the second air inlet 112 will be at a higher position, ensuring that it is above the liquid level, thus avoiding the steam discharge path being blocked by the liquid, and it is also beneficial for the steam in the pot body 210 to quickly enter the buffer chamber 130 through the higher air inlet, and then be discharged through the exhaust passage 140 and the steam outlet 121, so as to quickly achieve the internal and external pressure balance of the pot body 210 and prevent the liquid from overflowing.

[0084] Further, as Figure 4 、 Figure 6 、 Figure 8 and Figure 18 shown, the first air inlet 111 and the second air inlet 112 are arranged closer to the second side of the lid assembly 10 relative to the center of the bottom cover 110. In this way, after the lid assembly 10 tilts to one side along with the pot body assembly 20, referring to Figure 4 , the air inlet located above among the first air inlet 111 and the second air inlet 112 is as high as possible, ensuring that the steam discharge path is unblocked.

[0085] To improve the anti-overflow effect, the position of the inlet 141 of the exhaust passage 140 can also be optimized. Further, in some embodiments, such as Figure 4 、Figure 6 and Figure 8 As shown, the inlet 141 of the exhaust channel 140 is located on the line from the first side of the pot cover assembly 10 to the second side of the pot cover assembly 10. In this way, when the pot cover assembly 10 is covered on the kettle body assembly 20, no matter which side the pot cover assembly 10 is tilted with the kettle body assembly 20, the inlet 141 of the exhaust channel 140 is at the same high position, which can prevent liquid from easily entering the exhaust channel 140, thereby facilitating the anti-overflow effect of the liquid heating device after being tilted in different directions.

[0086] To improve the anti-overflow effect, further, in some embodiments, as Figure 4 , Figure 6 and Figure 8 As shown, the upper surface of the bottom wall of the bottom cover 110 is also provided with a first shielding rib 1191, the first shielding rib 1191 is arranged around the periphery of the first air inlet 111, and the first shielding rib 1191 has a first notch in the circumferential direction, the first notch is located on the side of the first shielding rib 1191 away from the entrance 141 of the exhaust channel 140, and the top of the first shielding rib 1191 is in contact with the lower surface of the bottom wall of the upper cover 120; the upper surface of the bottom wall of the bottom cover 110 is also provided with a second shielding rib 1192, the second shielding rib 1192 is arranged around the periphery of the second air inlet 112, and the second shielding rib 1192 has a second notch in the circumferential direction, the second notch is located on the side of the second shielding rib 1192 away from the entrance 141 of the exhaust channel 140, and the top of the second shielding rib 1192 is in contact with the lower surface of the bottom wall of the upper cover 120.

[0087] In these embodiments, after the gas and liquid enter the first air inlet 111 and the second air inlet 112, they will not flow directly to the exhaust channel 140, but will be blocked by the shielding ribs. They need to flow out through the notch and then turn in the opposite direction to enter the inlet 141 of the exhaust channel 140. The shielding ribs can play a buffering role. Due to the large difference in gas flow rate and liquid flow rate, it is beneficial to separate steam and liquid, so that steam can be discharged outward through the steam outlet 121 before liquid, preventing liquid from moving out of the pot lid assembly 10.

[0088] To improve the anti-overflow effect, further, in some embodiments, the exhaust channel 140 includes at least two exhaust cavities, and the at least two exhaust cavities are arranged in sequence from the first side of the pot lid assembly 10 to the second side of the pot lid assembly 10, and are connected to each other; wherein, the outlet 142 of the exhaust channel 140 is arranged on the cavity wall of the exhaust cavity close to the first side of the pot lid assembly 10, and the inlet 141 of the exhaust channel 140 is arranged on the cavity wall of the exhaust cavity close to the second side of the pot lid assembly 10.

[0089] In these embodiments, after the kettle lid assembly 10 is tilted to one side along with the kettle body assembly 20, the buffer cavity 130 and at least two exhaust cavities can achieve multiple buffering for the liquid, which is more conducive to the separation of steam and liquid, enabling the steam to pass through at least two exhaust cavities prior to the liquid and be discharged outwards through the steam outlet 121, preventing the liquid from moving out of the kettle lid assembly 10.

[0090] In a specific application, as Figure 4 shown, after the kettle lid assembly 10 is tilted to one side along with the kettle body assembly 20, the steam in the kettle body 210 can enter the buffer cavity 130 through the higher-positioned intake port among the first intake port 111 and the second intake port 112, and then flow through each exhaust cavity in sequence from the inlet 141 of the exhaust passage 140, and finally be discharged from the steam outlet 121. Since the steam flow rate is very fast, the steam can be quickly discharged from the kettle lid assembly 10, achieving pressure balance inside and outside the kettle body 210 and preventing the liquid from flowing out. At the same time, the liquid will enter the buffer cavity 130 through the lower-positioned intake port before the pressure balance inside and outside the kettle body 210, but the liquid needs to spread to the height where the inlet 141 of the exhaust passage 140 is located to enter the exhaust passage 140. Even if a small amount of liquid enters the exhaust passage 140, it needs to flow through each exhaust cavity in sequence to be removed from the steam outlet 121, and the liquid flow rate is slow. Therefore, configuring at least two exhaust cavities for multiple buffering can improve the anti-overflow effect during tilting.

[0091] As an example, as Figure 12 and Figure 13 shown, at least two lower enclosures 113 are provided on the upper surface of the bottom cover 110, and the at least two lower enclosures 113 are integrally formed with the bottom cover 110. At least two upper enclosures 122 are provided on the lower surface of the upper cover 120, and the at least two upper enclosures 122 are integrally formed with the upper cover 120. The upper enclosures 122 and the lower enclosures 113 are distributed in a one-to-one correspondence. The bottom of each upper enclosure 122 abuts against the top of the corresponding lower enclosure 113. Each upper enclosure 122, the corresponding lower enclosure 113, the upper surface of the bottom cover 110, and the lower surface of the upper cover 120 jointly enclose an exhaust cavity. It is convenient for processing. Moreover, compared with separately providing an exhaust pipe and installing it in the buffer cavity 130 to form the exhaust passage 140 through the exhaust pipe, it can reduce components, save costs, and eliminate the installation process, improving production efficiency.

[0092] As an example, at least two lower enclosures 113 are provided on the upper surface of the bottom cover 110, and the at least two lower enclosures 113 are integrally formed with the bottom cover 110. The top of each lower enclosure 113 abuts against the lower surface of the upper cover 120. Each lower enclosure 113, the upper surface of the bottom cover 110, and the lower surface of the upper cover 120 jointly enclose an exhaust cavity. Here, only the lower enclosures 113 are provided on the bottom cover 110 to cooperate with the upper cover 120 and the bottom cover 110 to enclose the exhaust cavity, which is beneficial to simplifying the structure of the upper cover 120 and facilitating the processing and forming of the upper cover 120.

[0093] As an example, at least two upper enclosures 122 are provided on the lower surface of the upper lid 120. The at least two upper enclosures 122 are integrally formed with the upper lid 120. The bottom of each upper enclosure 122 abuts against the upper surface of the bottom lid 110. Each upper enclosure 122 and the upper surface of the bottom lid 110 and the lower surface of the upper lid 120 jointly enclose an exhaust cavity. Only by providing the upper enclosures 122 on the upper lid 120 to cooperate with the upper lid 120 and the bottom lid 110 to enclose the exhaust cavity, it is beneficial to simplify the structure of the bottom lid 110 and facilitate the processing and forming of the bottom lid 110.

[0094] Figure 14 The contour diagram of the buffer cavity 130 inside the kettle lid assembly 10 is shown. Figure 15 The contour diagram of the exhaust passage 140 inside the kettle lid assembly 10 is shown. The buffer cavity 130 and the exhaust passage 140 are only connected through the inlet 141 of the exhaust passage 140, and the two are separated, so that the buffer cavity 130 is only connected to the kettle body 210 and the exhaust passage 140, and the exhaust passage 140 is connected to the outside.

[0095] Such as Figure 12 、 Figure 13 and Figure 18 As shown, the exhaust passage 140 has two exhaust cavities, namely a first exhaust cavity 143 and a second exhaust cavity 144. A first lower enclosure 114 and a second lower enclosure 115 are provided on the upper surface of the bottom lid 110. A first upper enclosure 123 and a second upper enclosure 124 are provided on the lower surface of the upper lid 120. After the upper lid 120 and the bottom lid 110 are connected together, the first upper enclosure 123 and the first lower enclosure 114 are butted together and enclose the first exhaust cavity 143 with the upper lid 120 and the bottom lid 110. The second upper enclosure 124 and the second lower enclosure 115 are butted together and enclose the second exhaust cavity 144 with the upper lid 120 and the bottom lid 110. The first exhaust cavity 143 is close to the second side of the kettle lid assembly 10, and the second exhaust cavity 144 is close to the first side of the kettle lid assembly 10. A ventilation pipe 145 is provided on the first lower enclosure 114. The two ends of the ventilation pipe 145 are respectively connected to the first exhaust cavity 143 and the second exhaust cavity 144 to realize the circulation of steam between the two. The pipe wall of the ventilation pipe 145 can be integrally formed with the first lower enclosure 114 and the second lower enclosure 115, or can be integrally formed with the bottom wall of the bottom lid 110, so as to avoid the occurrence of assembly gaps and eliminate the sealing structure.

[0096] As an example, the exhaust passage 140 has three or more exhaust cavities.

[0097] Furthermore, such as Figure 12 、 Figure 13 and Figure 18As shown, the lower enclosure 113 and the upper enclosure 122 are both annular enclosures. The annular upper enclosure 122 and the lower enclosure 113 can be better docked together, facilitating their interference fit and thus facilitating their sealed connection.

[0098] Further, as Figure 12 and Figure 13 shown, a first inclined surface 1221 is provided at the bottom end of the upper enclosure 122, and a second inclined surface 1131 is provided at the top end of the lower enclosure 113. The first inclined surface 1221 and the second inclined surface 1131 are in mutual abutment and interference fit. When the upper cover 120 and the bottom cover 110 are firmly connected together, the first inclined surface 1221 and the second inclined surface 1131 are in interference fit, generating slight plastic deformation, which can improve the sealing performance of the exhaust cavity.

[0099] Further, in some embodiments, as Figure 6 、 Figure 10 、 Figure 12 and Figure 13 shown, the outlet 142 of the exhaust passage 140 is provided on the bottom wall of the upper cover 120, the steam outlet 121 is provided on the side wall of the upper cover 120, a shroud 125 is provided on the outer periphery of the outlet 142 of the exhaust passage 140, the shroud 125 encloses a connection passage, and the top end of the shroud 125 is bent towards the direction where the steam outlet 121 is located and connected to the side wall of the upper cover 120 so that the connection passage communicates with the steam outlet 121.

[0100] In these embodiments, by providing the outlet 142 of the exhaust passage 140 on the bottom wall of the upper cover 120, after the gas flows out of the exhaust passage 140, it will also flow upward into the connection passage enclosed by the shroud 125, and then flow out from the steam outlet 121, increasing the gas flow path and the buffering effect, and further preventing the liquid from flowing out from the steam outlet 121. Moreover, such a design can make the steam outlet 121 away from the lower edge of the side wall of the upper cover 120, reducing the length of the side wall extending downward from the bottom wall of the upper cover 120, thereby reducing the thickness of the upper cover 120 and the thickness of the kettle lid assembly 10.

[0101] In this case, a rib 126 can also be provided on the lower surface of the bottom wall of the upper cover 120, so that the rib 126 surrounds the outlet 142 of the exhaust passage 140. In this way, after the kettle lid assembly 10 is tilted with the kettle body assembly 20, the rib 126 can prevent the liquid from flowing smoothly into the outlet 142 of the exhaust passage 140, and can also play a role in preventing the liquid from flowing out.

[0102] Both the rib 126 and the shroud 125 are integrally formed with the upper cover 120, which is convenient for processing, firmly connected, and there will be no assembly gaps.

[0103] Alternatively, further, in some embodiments, the outlet 142 of the exhaust passage 140 is disposed on the wall surface of the upper enclosure 122 near the first side of the kettle lid assembly 10, the steam outlet 121 is disposed on the side wall of the upper lid 120, and the upper enclosure 122 near the first side of the kettle lid assembly 10 is integrally connected to the side wall of the upper lid 120 so that the steam outlet 121 and the outlet 142 of the exhaust passage 140 are in communication.

[0104] In these embodiments, the steam outlet 121 and the outlet 142 of the exhaust passage 140 are at the same height, and the two are butt-connected and in communication. Moreover, the upper enclosure 122 near the first side of the kettle lid assembly 10 is directly integrally connected to the side wall of the upper lid 120, which can effectively avoid the occurrence of a gap between the steam outlet 121 and the outlet 142 of the exhaust passage 140, and has a good sealing effect. In addition, the structure of the upper lid 120 is simple and convenient for processing.

[0105] Further, in some embodiments, as Figure 2 and Figure 10 shown, the kettle lid assembly 10 further includes a silica gel steam pipe 180. The silica gel steam pipe 180 is disposed at the steam outlet 121 so that steam flows out of the kettle lid assembly through the silica gel steam pipe 180. The silica gel steam pipe 180 is also used to connect to the air guide passage 230 to realize the communication between the steam in the kettle lid assembly 10 and the outside through the silica gel steam pipe 180 and the air guide passage 230.

[0106] To avoid water accumulation in the buffer chamber 130, further, in some embodiments, as Figures 16 to 18 shown, the upper surface of the bottom wall of the bottom cover 110 includes two inclined surfaces 116. The two inclined surfaces 116 are symmetrically distributed on both sides of the exhaust passage 140, and the ends of the two inclined surfaces 116 close to the exhaust passage 140 are higher than the ends away from the exhaust passage 140. The first air inlet 111 is disposed at the edge of one inclined surface 116 away from the exhaust passage 140, and the second air inlet 112 is disposed at the edge of the other inclined surface 116 away from the exhaust passage 140. In this way, the liquid in the buffer chamber 130 can flow along the two inclined surfaces 116 to the first air inlet 111 and the second air inlet 112 respectively, and flow back into the kettle body 210 through the first air inlet 111 and the second air inlet 112, avoiding long-term liquid accumulation in the buffer chamber 130.

[0107] Further, as Figure 17 and Figure 18 shown, the upper surface of the bottom wall of the bottom cover 110 further includes a transition plane 117. The transition plane 117 extends from the first side of the kettle lid assembly 10 to the second side of the kettle lid assembly 10. The two inclined surfaces 116 are symmetrically distributed on both sides of the transition plane 117. The fixing column 118 is disposed on the transition plane 117, and the fixing column 118 is firmly installed.

[0108] Further, asFigure 16 and Figure 17 As shown in Figure 17 , the included angle α between the two inclined surfaces 116 is less than 179° and greater than 150°.

[0109] Furthermore, in some other embodiments, the upper surface of the bottom wall of the bottom cover 110 includes inclined surfaces 116 circumferentially distributed around the center of the bottom cover 110. The inclined surfaces 116 extend downwardly and obliquely from the middle of the bottom cover 110 towards the edge of the bottom cover 110. The first air inlet 111 and the second air inlet 112 are arranged on the inclined surfaces 116 and are close to the side edge of the bottom cover 110. In this way, the liquid in the buffer chamber 130 can flow along the inclined surfaces 116 towards the first air inlet 111 and the second air inlet 112, and flow back into the kettle body 210 through the first air inlet 111 and the second air inlet 112, avoiding the long-term accumulation of liquid in the buffer chamber 130.

[0110] Furthermore, in some embodiments, as Figure 11 shown in Figure 11 , a circumferentially distributed connection gap 150 is formed between the upper cover 120 and the bottom cover 110; the kettle lid assembly 10 further includes a bottom cover sealing ring 160. The bottom cover sealing ring 160 is sleeved on the outer perimeters of the upper cover 120 and the bottom cover 110 and covers the connection gap 150. The bottom cover sealing ring 160 is used to closely fit with the inner wall of the kettle body 210.

[0111] In these embodiments, a bottom cover sealing ring 160 capable of sealing the connection gap 150 between the upper cover 120 and the bottom cover 110 is provided at the connection between the upper cover 120 and the bottom cover 110, improving the sealing performance of the buffer chamber 130.

[0112] Furthermore, as Figure 11 shown in Figure 11 , a circular groove 170 is formed between the upper cover 120 and the bottom cover 110. The connection gap 150 is located at the bottom wall of the groove of the circular groove 170. The inner side of the bottom cover sealing ring 160 has ribs 161 adapted to the circular groove 170, and the ribs 161 are snapped into the circular groove 170.

[0113] The ribs 161 of the bottom cover sealing ring 160 are snapped into the circular groove 170 formed between the upper cover 120 and the bottom cover 110, facilitating the fixed installation of the bottom cover sealing ring 160. The bottom cover sealing ring 160 can cover the joint between the upper cover 120 and the bottom cover 110 to achieve sealing. Moreover, when the kettle lid assembly 10 is closed on the kettle body assembly 20, the bottom cover sealing ring 160 can also simultaneously achieve the sealing between the bottom cover 110 and the top opening of the kettle body 210. One part realizes the sealing of two parts, improving the utilization rate of the part.

[0114] As an example, the side wall of the upper cover 120 may have a first annular rib, and the side wall of the bottom cover 110 may have a second annular rib. After the upper cover 120 and the bottom cover 110 are connected together, the first annular rib and the second annular rib enclose the circular groove 170.

[0115] Further, in some embodiments, as Figure 12 shown, mounting holes 127 are provided on the upper cover 120, and fixing posts 118 are provided on the bottom wall of the bottom cover 110. A fastener 128, such as a screw, passes through the mounting hole 127 and is inserted into the fixing post 118 to clamp the upper cover 120 and the bottom cover 110 together. This is beneficial for firmly connecting the two together. In addition, when there is an upper enclosure 122 on the upper cover 120 and a lower enclosure 113 on the bottom cover 110, the upper enclosure 122 and the lower enclosure 113 can be forced to be in interference connection with each other, resulting in a good sealing effect.

[0116] Further, as Figure 10 、 Figure 12 and Figure 13 shown, in some embodiments, the kettle lid assembly 10 further includes a top lid 190, and the top lid 190 is disposed above the upper cover 120.

[0117] As Figures 1 to 4 、 Figure 9 and Figure 10 shown, the second aspect embodiment of the present utility model provides a liquid heating device. The liquid heating device includes: a kettle body assembly 20, the kettle body assembly 20 includes a kettle body 210 having an opening at the top and a handle 220 disposed on the first side of the kettle body 210, and a water outlet 211 is disposed on the second side of the kettle body 210; the kettle lid assembly 10 according to any one of the above embodiments, the kettle lid assembly 10 covers the top opening of the kettle body 210, the steam outlet 121 is located at one end of the kettle lid assembly 10 close to the handle 220, and the inlet 141 of the exhaust passage 140 is located at one end of the exhaust passage 140 close to the water outlet 211; a gas guiding passage 230, one end of the gas guiding passage 230 is communicated with the steam outlet 121, and the other end of the gas guiding passage 230 extends towards the bottom of the kettle body 210 and is communicated with the outside.

[0118] The liquid heating device provided by the embodiment of this aspect has the beneficial effects of any one of the above embodiments due to having the kettle lid assembly 10 of any one of the above embodiments, and will not be elaborated herein.

[0119] Moreover, when installing the kettle lid assembly 10, the steam outlet 121 is arranged opposite to the handle 220, and the inlet 141 of the exhaust passage 140 is located at one end of the exhaust passage 140 close to the water outlet 211. Since the liquid heating device generally takes the handle 220 as a fulcrum when it is tilted, no matter which side the liquid heating container is tilted towards, the positions of the first air inlet 111, the second air inlet 112 and the inlet 141 of the exhaust passage 140 are all beneficial to the steam being discharged outward through the buffer chamber 130, the steam outlet 121 and the air guide passage 230 prior to the liquid, quickly realizing the internal and external pressure balance of the kettle body 210, avoiding the danger caused by the inability of the steam inside the kettle body 210 to be discharged and the excessive pressure, and thus meeting the requirements of the liquid heating container in the anti-tilting state.

[0120] In some embodiments, the air guide passage 230 is arranged in the handle 220 or in the kettle body 210, and will not be exposed, resulting in a good appearance effect. Especially when the air guide passage 230 is arranged in the handle 220, as Figure 2 shown, it will not occupy the internal space of the kettle body 210, facilitating the cleaning of the kettle body 210.

[0121] As an example, the air guide passage 230 is formed by an air guide pipe. One end of the air guide pipe is communicated with the outlet 142 of the exhaust passage 140 through a silica gel steam pipe 180, and the other end of the air guide pipe extends towards the bottom of the kettle body 210 and is communicated with the outside.

[0122] Furthermore, the outer diameter of the kettle body 210 gradually increases from the top to the bottom. Then, when the kettle body 210 is in a tilted state, the second end of the air guide passage 230 is higher than the first end of the air guide passage 230, which can further prevent the liquid from overflowing.

[0123] In some embodiments, the liquid heating device is an electric kettle, a health kettle, a teapot, or the like.

[0124] Although the embodiments of the present invention have been described in detail above, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the present invention. It should be understood that, in the view of those skilled in the art, these modifications and variations will still fall within the spirit and scope of the embodiments of the present invention defined by the claims.

Claims

1. A pot cover assembly, characterized in that: The pot cover assembly comprises: A bottom cover (110), wherein a first air inlet (111) and a second air inlet (112) are provided on a bottom wall of the bottom cover (110); An upper cover (120) is arranged on the top of the bottom cover (110) and encloses a buffer chamber (130) with the bottom cover (110); the first air inlet (111) and the second air inlet (112) are in communication with the buffer chamber (130); an exhaust channel (140) is provided in the buffer chamber (130); an inlet (141) of the exhaust channel (140) is in communication with the buffer chamber (130); a steam outlet (121) for communicating with the outside is provided on a first side of the pot cover assembly; an outlet (142) of the exhaust channel (140) is in communication with the steam outlet (121); The exhaust channel (140) extends from a first side of the pot cover assembly to a second side opposite to the first side, an inlet (141) of the exhaust channel (140) is arranged close to the second side of the pot cover assembly, and the first air inlet (111) and the second air inlet (112) are distributed on opposite sides of the exhaust channel (140).

2. The pot cover assembly according to claim 1, characterized in that: The first air inlet (111) and the second air inlet (112) are symmetrically distributed about a line connecting a first side of the pot cover assembly and a second side of the pot cover assembly; and / or The first air inlet (111) and the second air inlet (112) are arranged close to the side wall of the bottom cover (110); and / or The first air inlet (111) and the second air inlet (112) are arranged near the second side of the pot cover assembly relative to the center of the bottom cover (110).

3. The pot cover assembly according to claim 1, characterized in that: The inlet (141) of the exhaust passage (140) is located on a line connecting the first side of the pot cover assembly to the second side of the pot cover assembly.

4. The pot cover assembly according to any one of claims 1 to 3, characterized in that: A first shielding rib (1191) is further provided on the upper surface of the bottom wall of the bottom cover (110); the first shielding rib (1191) is arranged around the outer circumference of the first air inlet (111); and the first shielding rib (1191) has a first notch in the circumferential direction; the first notch is located on a side of the first shielding rib (1191) away from the inlet (141) of the exhaust passage (140); and the top of the first shielding rib (1191) is in contact with the bottom wall of the upper cover (120); A second shielding rib (1192) is also provided on the upper surface of the bottom wall of the bottom cover (110), the second shielding rib (1192) is arranged around the outer periphery of the second air inlet (112), and the second shielding rib (1192) has a second notch in the circumferential direction, the second notch is located on the side of the second shielding rib (1192) away from the entrance (141) of the exhaust passage (140), and the top of the second shielding rib (1192) is in contact with the bottom wall of the upper cover (120).

5. The pot cover assembly according to any one of claims 1 to 3, characterized in that: The exhaust channel (140) comprises at least two exhaust cavities, which are arranged in sequence from the first side of the pot cover assembly to the second side of the pot cover assembly and are interconnected; The outlet (142) of the exhaust channel (140) is arranged on the cavity wall of the exhaust cavity close to the first side of the pot cover assembly, and the inlet (141) of the exhaust channel (140) is arranged on the cavity wall of the exhaust cavity close to the second side of the pot cover assembly.

6. The pot cover assembly according to claim 5, characterized in that: The upper surface of the bottom cover (110) is provided with at least two lower enclosures (113), and / or the lower surface of the upper cover (120) is provided with at least two upper enclosures (122); Based on the fact that at least two lower enclosures (113) are provided on the upper surface of the bottom cover (110), the top of each lower enclosure (113) is in contact with the lower surface of the upper cover (120), and each lower enclosure (113) and the upper surface of the bottom cover (110) and the lower surface of the upper cover (120) together form an exhaust cavity; Based on the fact that at least two upper enclosures (122) are provided on the lower surface of the upper cover (120), the bottom of each upper enclosure (122) abuts against the upper surface of the bottom cover (110), and each upper enclosure (122) and the upper surface of the bottom cover (110) and the lower surface of the upper cover (120) together form an exhaust cavity; Based on the fact that at least two lower enclosures (113) are provided on the upper surface of the bottom cover (110), and at least two upper enclosures (122) are provided on the lower surface of the upper cover (120), the upper enclosures (122) and the lower enclosures (113) are distributed in a one-to-one correspondence, the bottom of each upper enclosure (122) is abutted against the top of the corresponding lower enclosure (113), and each upper enclosure (122) and the corresponding lower enclosure (113) as well as the upper surface of the bottom cover (110) and the lower surface of the upper cover (120) together form an exhaust cavity.

7. The pot cover assembly according to claim 5, characterized in that: The upper surface of the bottom cover (110) is provided with at least two lower enclosures (113), and at least two of the lower enclosures (113) are integrally formed with the bottom cover (110); the lower surface of the upper cover (120) is provided with at least two upper enclosures (122), and at least two of the upper enclosures (122) are integrally formed with the upper cover (120); the upper enclosures (122) and the lower enclosures (113) are distributed in a one-to-one correspondence; the bottom of each upper enclosure (122) abuts against the top of the corresponding lower enclosure (113); each upper enclosure (122) and the corresponding lower enclosure (113), as well as the upper surface of the bottom cover (110) and the lower surface of the upper cover (120), together form an exhaust cavity.

8. The pot cover assembly according to claim 7, characterized in that: The lower enclosure (113) and the upper enclosure (122) are both annular enclosures; and / or The bottom end of the upper enclosure (122) is provided with a first inclined surface (1221), and the top end of the lower enclosure (113) is provided with a second inclined surface (1131), and the first inclined surface (1221) and the second inclined surface (1131) abut against each other and are interference fit.

9. The pot cover assembly according to claim 7, characterized in that: The outlet (142) of the exhaust channel (140) is arranged on the bottom wall of the upper cover (120), the steam outlet (121) is arranged on the side wall of the upper cover (120), a surrounding plate (125) is arranged on the outer periphery of the outlet (142) of the exhaust channel (140), the surrounding plate (125) encloses a connecting channel, the top end of the surrounding plate (125) is bent in the direction of the steam outlet (121) and connected to the side wall of the upper cover (120), so that the connecting channel is connected to the steam outlet (121); or The outlet (142) of the exhaust channel (140) is arranged on the wall surface of the upper enclosure (122) close to the first side of the pot cover assembly, and the steam outlet (121) is arranged on the side wall of the upper cover (120). The upper enclosure (122) close to the first side of the pot cover assembly is integrally connected to the side wall of the upper cover (120) so that the steam outlet (121) and the outlet (142) of the exhaust channel (140) are connected.

10. The pot cover assembly according to any one of claims 1 to 3, characterized in that: The upper surface of the bottom wall of the bottom cover (110) comprises two inclined surfaces (116), the two inclined surfaces (116) are symmetrically distributed on both sides of the exhaust channel (140), and one end of the two inclined surfaces (116) close to the exhaust channel (140) is higher than the other end away from the exhaust channel (140), the first air inlet (111) is arranged at an edge of one of the inclined surfaces (116) away from the exhaust channel (140), and the second air inlet (112) is arranged at an edge of the other inclined surface (116) away from the exhaust channel (140); or The upper surface of the bottom wall of the bottom cover (110) comprises an inclined surface (116) distributed circumferentially around the center of the bottom cover (110), and the inclined surface (116) extends downwardly from the middle of the bottom cover (110) toward the edge of the bottom cover (110), and the first air inlet (111) and the second air inlet (112) are arranged on the inclined surface (116) and close to the side edge of the bottom cover (110).

11. The pot cover assembly according to any one of claims 1 to 3, characterized in that: A circumferentially distributed connection gap (150) is formed between the upper cover (120) and the bottom cover (110); The pot cover assembly (10) further comprises a bottom cover sealing ring (160), wherein the bottom cover sealing ring (160) is sleeved on the outer periphery of the upper cover (120) and the bottom cover (110) and covers the connecting gap (150), and the bottom cover sealing ring (160) is used to fit tightly with the inner wall of the pot body (210).

12. The pot cover assembly according to claim 11, characterized in that: A circle of slots (170) is formed between the upper cover (120) and the bottom cover (110); the connecting gap (150) is located at the bottom wall of the slot (170); the inner side of the bottom cover sealing ring (160) has ribs (161) adapted to the slot (170); and the ribs (161) are buckled in the slot (170).

13. The pot cover assembly according to any one of claims 1 to 3, characterized in that: The upper cover (120) is provided with a mounting hole (127), the bottom wall of the bottom cover (110) is provided with a fixing column (118), and a fastener (128) passes through the mounting hole (127) and is inserted into the fixing column (118) to clamp the upper cover (120) and the bottom cover (110) together.

14. A liquid heating device, characterized in that: The liquid heating device comprises: A kettle body assembly (20), the kettle body assembly (20) comprising a kettle body (210) having an opening at the top and a handle (220) arranged on a first side of the kettle body (210), and a water spout (211) is arranged on a second side of the kettle body (210); The kettle cover assembly (10) according to any one of claims 1 to 13, wherein the kettle cover assembly (10) covers the top opening of the kettle body (210), the steam outlet (121) is located at an end of the kettle cover assembly (10) close to the handle (220), and the inlet (141) of the exhaust channel (140) is located at an end of the exhaust channel (140) close to the water outlet (211); An air guiding channel (230), one end of which is in communication with the steam outlet (121), and the other end of which extends toward the bottom of the kettle body (210) and is in communication with the outside world, and the air guiding channel (230) is arranged in the handle (220) or in the kettle body (210).

Images