CN218304520U

CN218304520U - Cover assembly and liquid heating container

Info

Publication number: CN218304520U
Application number: CN202222825939.4U
Authority: CN
Inventors: 周枫; 舒再善; 刘华清
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-01-17
Anticipated expiration: 2032-10-25
Also published as: WO2024089572A1

Abstract

The application provides a lid assembly and a liquid heating vessel. The cover body assembly includes: an upper cover; the lower cover is connected below the upper cover, an accommodating cavity is formed by enclosing the upper cover and the lower cover, a steam inlet is formed in the bottom wall of the accommodating cavity, and a steam outlet is formed in the side wall of the accommodating cavity; the pressure relief and exhaust assembly is arranged in the accommodating cavity and comprises an air duct, the first end of the air duct is communicated with the steam inlet, and the second end of the air duct is communicated with the steam outlet; wherein, the second end of air duct is higher than the first end of air duct along the direction of height of lid subassembly. According to the cover body assembly provided by the embodiment of the aspect, when the liquid heating container is normally placed, the steam inlet, the air guide pipe and the steam outlet can play a steam conducting role; the liquid heating container can be inclined and guided along any direction, a part of the spiral air duct is always higher than the liquid level inside the liquid heating container, and water only flows into the spiral air duct and cannot overflow the cover body assembly.

Description

Cover assembly and liquid heating container

Technical Field

The application relates to the technical field of household appliances, in particular to a cover body assembly and a liquid heating container.

Background

At present, current insulating pot overflow when preventing that the kettle from empting has designed in order to prevent to topple over the pot lid, and current preventing topples over the pot lid and generally includes two at least exhaust pipe and two at least steel balls, and the assembly spare part is many, and the structure is complicated, and the cost is higher to, the comdenstion water in the pot lid can not direct reflux, if want to realize the comdenstion water backward flow in the pot lid, still need design backflow channel, the structure is complicated.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving at least one of the above-mentioned problems in the prior art or related art.

To this end, a first aspect of the present application is to provide a cover assembly.

A second aspect of the present application is to provide a liquid heating vessel.

According to the utility model discloses a first aspect provides a cover body assembly, and cover body assembly includes: an upper cover; the lower cover is connected below the upper cover, an accommodating cavity is formed by enclosing the upper cover and the lower cover, a steam inlet is formed in the bottom wall of the accommodating cavity, and a steam outlet is formed in the side wall of the accommodating cavity; the pressure relief and exhaust assembly is arranged in the accommodating cavity and comprises an air duct, the first end of the air duct is communicated with the steam inlet, and the second end of the air duct is communicated with the steam outlet; wherein, the second end of air duct is higher than the first end of air duct along the direction of height of lid subassembly.

The lid subassembly that this aspect embodiment provided includes upper cover, lower cover and pressure release exhaust subassembly, and pressure release exhaust subassembly includes the air duct, and the first end and the steam inlet of air duct are linked together, and the second end and the steam outlet of air duct are linked together, and also, the both ends of air duct communicate steam inlet and steam outlet respectively, and when liquid heating container normally placed, the ohmic heating work, steam inlet, air duct and steam outlet can play and switch on the steam effect, satisfy the normal exhaust demand of boiling water. Further, the air duct coils and is the heliciform, when liquid heating container emptys, a small amount of water can flow into in the air duct from steam inlet, under airtight spiral air duct intercommunication principle condition, water in the liquid heating container and the water intercommunication that flows into in the heliciform air duct, and the height that flows into the water in the air duct is the same with this internal liquid level of container height all the time, it leads just also to follow arbitrary direction slope in the liquid heating container, helical air duct has partly the inside liquid level of liquid heating container all the time, thereby when liquid heating container takes place to empty, water only can flow into helical air duct, can not spill over the lid subassembly and scald the user, can empty wantonly, and then reach the mesh that the lid subassembly was prevented empting. In addition, the pipeline of heliciform air duct is tortuous, and length is longer and level and smooth compared with other shapes, has the fast advantage of heat dissipation, and steam has certain refrigeration effect because the pipeline is longer when the heliciform air duct flows, and steam can cool off fast, can effectively restrain the steam discharge amount.

In addition, the cover assembly provided by the above embodiment of the present application may further have the following additional technical features:

in some embodiments, the pressure relief vent assembly further comprises: the first joint is connected with the first end of the air guide pipe and the steam inlet, and the second joint is connected with the second end of the air guide pipe and the steam outlet. So set up, connect air duct and steam inlet through first joint, second articulate air duct and steam outlet for the air duct is simple and convenient with steam inlet, steam outlet's being connected, convenient equipment operation, and can ensure that the air duct is inseparable with being connected between steam inlet, the steam outlet.

In some embodiments, the first joint and the second joint are a unitary structure. So set up, connect integrated the setting with first joint and second, can reduce a part, improve packaging efficiency and cost.

In some embodiments, the first joint and the second joint are a split structure. So set up, design into an solitary part respectively with first joint and second joint, can simplify the structure of each joint, simplify the mould, make things convenient for the processing production of part.

In some embodiments, the first connector comprises a first straight pipe section and a first connecting section which is convexly arranged on the side wall of the first straight pipe section, the first connecting section is communicated with the first straight pipe section, the first connecting section is connected with the first end of the gas guide pipe, and the first end of the first straight pipe section is connected with the steam inlet; the second connector comprises a second straight pipe section and a second connecting section which is arranged on the side wall of the second straight pipe section in a protruding mode, the second connecting section is communicated with the second straight pipe section, the second connecting section is connected with the second end of the air guide pipe, and the first end of the second straight pipe section is connected with the steam outlet.

In the embodiments, the structure of the first joint and the second joint is defined, and specifically, the first joint comprises a first straight pipe section and a first connecting section which is convexly arranged on the side wall of the first straight pipe section, wherein the first connecting section is communicated with the first straight pipe section, the first straight pipe section is connected with the steam inlet, the first connecting section is connected with the gas-guide pipe, and steam can enter the first straight pipe section from the steam inlet and then enter the gas-guide pipe through the first connecting section; further, the second connector comprises a second straight pipe section and a second connecting section which is convexly arranged on the side wall of the second straight pipe section, the second straight pipe section is connected with the steam outlet, and steam in the air guide pipe further moves towards the second connector, enters the second straight pipe section through the second connecting section and is discharged through the steam outlet.

In some embodiments, the second end of the first straight pipe section is provided with a first pressure relief valve, the first pressure relief valve being openable in the event that the pressure exceeds a pressure threshold; and/or the second end of the second straight tube section is provided with a second pressure relief valve which can open in the event that the pressure exceeds a pressure threshold.

In these embodiments, the first pressure relief valve and/or the second pressure relief valve are in a closed state in a normal state, and prevent that steam from being discharged from the second end of the first straight pipe section and/or the second straight pipe section, and under the condition that the pressure inside the liquid heating container exceeds a pressure threshold value, the inside steam can flush the first pressure relief valve and/or the second pressure relief valve, so that the steam is rapidly discharged from the first pressure relief valve and/or the second pressure relief valve, and the situation that the steam inside the container body cannot be discharged, and the pressure is too high, so that danger is caused is avoided.

In some embodiments, the second end of the airway tube is higher than the first end of the airway tube along the height of the cover assembly. So set up, because the second end that the air duct is connected with steam outlet is high, and the first end that is connected with steam inlet is low, the steam condensation back, the comdenstion water in the air duct can flow to steam inlet under the action of gravity to it is internal to flow back to the container through steam inlet, reduces water loss, the energy can be saved. And, because the air duct is the heliciform, the pipeline of heliciform air duct is also more smooth, and the resistance is little to be favorable to the backward flow of comdenstion water.

In some embodiments, a plurality of first supporting ribs are arranged on the upper surface of the cavity bottom wall, and first matching grooves matched with the air guide pipes are arranged on the first supporting ribs; the bottom wall of the upper cover is provided with a second supporting rib extending downwards, a second matching groove is formed in the second supporting rib, and the air guide pipe is enclosed by the second matching groove and the first matching groove.

In these embodiments, the mounting of the airway tube is further defined by a first mating groove and a second mating groove, such that the mounting of the airway tube is stable. Specifically, be provided with a plurality of first brace rods on the upper surface of chamber bottom wall, be provided with downwardly extending's second brace rod on the diapire of upper cover, be provided with first cooperation groove on the first brace rod, be provided with second cooperation groove on the second brace rod, the air duct is installed in the space that first cooperation groove and second cooperation groove enclose.

In some embodiments, the first joint and/or the second joint is a plastic member, a silicone member, or a metal member.

In the embodiments, the material of the first joint and/or the second joint can be widely selected, so that the production efficiency can be improved, and the production cost can be reduced. Specifically, the first joint and/or the second joint are/is a plastic part, the cost of the plastic part is low, mass production can be realized through an injection molding process, and the processing is convenient; the first joint and/or the second joint are/is a silica gel piece, and the silica gel has the advantages of no toxicity, no harm, good safety, good elasticity, long service life and the like, and is suitable for manufacturing accessories of food containers. The first joint and/or the second joint are metal pieces, and the metal pieces have the advantages of high structural strength, safe material, difficult deformation, long service life and the like, and preferably adopt stainless steel materials.

In some embodiments, the airway tube is a plastic or silicone or metal piece. So set up for the material selectivity of air duct is extensive, can improve production efficiency, reduction in production cost. Specifically, the air guide pipe is a plastic part, the cost of the plastic part is low, mass production can be realized through an injection molding process, and the processing is convenient; the air duct is a silica gel part, and the silica gel has the advantages of no toxicity, no harm, good safety, good elasticity, long service life and the like, and is suitable for manufacturing accessories of food containers. The air duct is the metalwork, and the metalwork has structural strength height, and the material is safe, non-deformable, advantage such as longe-lived, and the preferred stainless steel material of selecting for use.

In some embodiments, the cover assembly further comprises: the cover plate is connected below the lower cover and is provided with a plurality of air holes; and the sealing ring is sleeved on the periphery of the cover plate.

In these embodiments, the cover plate and the sealing ring are installed below the lower cover, and when the cover body assembly is closed with the container body, the cover plate and the sealing ring are located inside the container body and tightly seal the container opening, so as to seal the container opening. The air holes can be communicated with the steam inlet, so that the cover plate is prevented from shielding the steam inlet, and the steam inlet is ensured to be smoothly communicated with steam.

According to a second aspect of the present invention, there is provided a liquid heating container, comprising: the container comprises a container body, a container opening is formed in the top of the container body; and the cover body assembly in any one of the above technical schemes, wherein the cover body assembly is covered on the container opening.

The liquid heating container provided by the embodiment of the present aspect has the beneficial effects of any one of the above technical solutions due to the cover assembly of any one of the above technical solutions, which is not repeated herein.

Additional aspects and/or advantages of the present general inventive concept will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the general inventive concept.

Drawings

The above and other objects and features of the present invention will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural view of a part of a cover assembly according to an embodiment of the present invention;

fig. 2 is another partial structural schematic diagram of a cover assembly provided according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a lower cover according to an embodiment of the present invention;

fig. 4 is a schematic longitudinal sectional view of a cover assembly provided in accordance with an embodiment of the present invention;

fig. 5 is an exploded view of a cover assembly provided in accordance with an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of a liquid heating vessel provided in accordance with an embodiment of the present invention in a tipped-off condition;

fig. 7 is another schematic cross-sectional view of a liquid heating vessel provided in accordance with an embodiment of the present invention in a tipped-off state.

Fig. 1 to 7 are numbered as follows:

10, an upper cover, 110 second supporting ribs, 111 second matching grooves,

20, a receiving chamber 210, a steam inlet 220, a steam outlet 230,

30 pressure relief and air exhaust assembly, 310 air duct, 320 first joint, 321 first straight pipe section, 322 first connecting section, 323 first pressure relief valve, 330 second joint, 331 second straight pipe section, 332 second connecting section, 333 second pressure relief valve,

40 first support ribs, 410 first mating grooves,

50 of the cover plate, 510 of the air holes,

60 o-ring, 70 container body.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, devices, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent to those skilled in the art after reviewing the disclosure of the present application. For example, the order of operations described herein is merely an example, and is not limited to those set forth herein, but may be changed as will become apparent after understanding the disclosure of the present application, except to the extent that operations must occur in a particular order. Moreover, descriptions of features known in the art may be omitted for clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided to illustrate only some of the many possible ways to implement the methods, devices, and/or systems described herein, which will be apparent after understanding the disclosure of the present application.

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

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

In the specification, when an element such as a layer, region or substrate is referred to as being "on," "connected to" or "coupled to" another element, it can be directly on, connected to or coupled to the other element or one or more other elements may be present therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there may be no intervening elements present.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular is also intended to include the plural unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, 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" means any number of two or more.

The definitions of the terms "upper", "lower", "top" and "bottom" in this application are all based on the orientation of the air fryer when it is in normal use and is standing upright.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs after understanding the present invention. Unless explicitly defined as such herein, terms such as those defined in general dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and should not be interpreted in an idealized or overly formal sense.

Further, in the description of the examples, when it is considered that detailed description of well-known related structures or functions will cause a vague explanation of the present invention, such detailed description will be omitted.

The cover assembly and liquid heating vessel of some embodiments of the present application will be described below with reference to fig. 1 to 7.

As shown in fig. 1, 2, 3 and 5, an embodiment of the first aspect of the present invention provides a cover assembly, including: an upper cover 10; the lower cover 20 is connected below the upper cover 10, an accommodating cavity 210 is formed by enclosing the upper cover 10 and the lower cover 20, a steam inlet 220 is arranged on the bottom wall of the accommodating cavity 210, and a steam outlet 230 is arranged on the side wall of the accommodating cavity 210; the pressure relief exhaust assembly 30 is arranged in the accommodating cavity 210, the pressure relief exhaust assembly 30 comprises an air duct 310, a first end of the air duct 310 is communicated with the steam inlet 220, and a second end of the air duct 310 is communicated with the steam outlet 230; wherein, the second end of the air duct 310 is higher than the first end of the air duct 310 along the height direction of the cover assembly.

The cover body assembly provided by the embodiment of the present invention includes an upper cover 10, a lower cover 20 and a pressure relief exhaust assembly 30, the pressure relief exhaust assembly 30 includes a gas guiding tube 310, a first end of the gas guiding tube 310 is communicated with the steam inlet 220, a second end of the gas guiding tube 310 is communicated with the steam outlet 230, that is, two ends of the gas guiding tube 310 are respectively communicated with the steam inlet 220 and the steam outlet 230, when the liquid heating container is normally placed, power is supplied to heat the liquid heating container, as shown in fig. 1, an arrow in fig. 1 represents a flow direction of steam, the steam enters through the steam inlet 220, flows to the steam outlet 230 through the gas guiding tube 310, and finally flows out through the steam outlet 230; the steam inlet 220, the air duct 310 and the steam outlet 230 can play a role in conducting steam, and normal exhaust requirements of boiling water are met. Further, the air duct 310 is coiled in a spiral shape, when the liquid heating container is toppled over, a small amount of water can flow into the air duct 310 from the steam inlet 220, under the condition of the principle that the closed spiral air duct 310 is communicated, the water in the liquid heating container is communicated with the water flowing into the spiral air duct 310, the height of the water flowing into the air duct 310 is always the same as the height of the liquid level in the container body 70, namely, the liquid heating container can be toppled in any direction, and a part of the spiral air duct 310 is always higher than the liquid level in the liquid heating container, so that when the liquid heating container is toppled over, the water only can flow into the spiral air duct 310, the cover body assembly cannot overflow and a user can be scalded, the cover body assembly can be toppled over at will, and the purpose of toppling over the cover body assembly is achieved. In addition, the spiral air duct 310 has a winding path and a longer and smooth length compared with other shapes, and has the advantage of fast heat dissipation, and when the steam flows in the spiral air duct 310, the steam has a certain refrigeration effect because the duct is long, and the steam can be rapidly cooled, so that the steam discharge amount can be effectively suppressed.

Further to the specific structure of the vent assembly, in some embodiments, as shown in fig. 1, 2 and 5, the pressure relief vent assembly 30 further comprises: a first connector 320 and a second connector 330, the first connector 320 connecting the first end of the airway tube 310 and the steam inlet 220, the second connector 330 connecting the second end of the airway tube 310 and the steam outlet 230. So set up, connect air duct 310 and steam inlet 220 through first joint 320, second joint 330 connects air duct 310 and steam outlet 230 for the connection of air duct 310 with steam inlet 220, steam outlet 230 is simple and convenient, and convenient equipment operation can ensure that the connection between air duct 310 and steam inlet 220, the steam outlet 230 is inseparable.

In some embodiments, the first joint 320 and the second joint 330 are a unitary structure. With such an arrangement, the first connector 320 and the second connector 330 are integrally arranged, so that one part can be reduced, and the assembly efficiency and cost can be improved.

In other embodiments, as shown in fig. 1, 2, and 5, the first connector 320 and the second connector 330 are a split structure. With the arrangement, the first joint 320 and the second joint 330 are respectively designed into a single part, so that the structure of each joint can be simplified, the die is simplified, and the processing and production of parts are facilitated.

In some embodiments, the first connector 320 and the second connector 330 are identical in structure. By the arrangement, the first joint 320 and the second joint 330 can be universal, so that one joint part can be machined and produced less, part molds are reduced, and machining cost is reduced; on the other hand, the first joint 320 and the second joint 330 do not need to be distinguished in the assembly process of the cover body assembly, so that the assembly is convenient, and the assembly efficiency is improved.

Of course, it is understood that the structures of the first connector 320 and the second connector 330 may not be completely the same, and the adjustment may be made according to the positions and shapes of the steam inlet 220, the steam outlet 230 and the air duct 310 without departing from the design concept of the present invention.

Further, with respect to the specific joints of the first joint 320 and the second joint 330, in some embodiments, as shown in fig. 2 and 5, the first joint 320 includes a first straight pipe section 321 and a first connecting section 322 convexly disposed on a side wall of the first straight pipe section 321, the first connecting section 322 is in communication with the first straight pipe section 321, the first connecting section 322 is connected with the first end of the airway tube 310, and the first end of the first straight pipe section 321 is connected with the steam inlet 220; the second connector 330 comprises a second straight pipe section 331 and a second connecting section 332 convexly arranged on the side wall of the second straight pipe section 331, the second connecting section 332 is communicated with the second straight pipe section 331, the second connecting section 332 is connected with the second end of the air duct 310, and the first end of the second straight pipe section 331 is connected with the steam outlet 230.

In these embodiments, the first connector 320 and the second connector 330 are defined in terms of structure, and specifically, the first connector 320 includes a first straight pipe section 321 and a first connecting section 322 convexly disposed on a side wall of the first straight pipe section 321, wherein the first connecting section 322 is communicated with the first straight pipe section 321, the first straight pipe section 321 is connected with the steam inlet 220, the first connecting section 322 is connected with the air duct 310, and steam can enter the first straight pipe section 321 from the steam inlet 220 and then enter the air duct 310 through the first connecting section 322; further, the second connector 330 comprises a second straight pipe section 331 and a second connecting section 332 protruding from the sidewall of the second straight pipe section 331, the second straight pipe section 331 is connected to the steam outlet 230, and the steam in the air duct 310 further moves toward the second connector 330, enters the second straight pipe section 331 through the second connecting section 332, and is discharged through the steam outlet 230.

Further, for the specific joints of the first joint 320 and the second joint 330, in some embodiments, as shown in fig. 2 and 5, the second end of the first straight pipe section 321 is provided with a first pressure relief valve 323, and the first pressure relief valve 323 can be opened if the pressure exceeds a pressure threshold; and/or the second end of the second straight tube section 331 is provided with a second pressure relief valve 333, the second pressure relief valve 333 being openable in case the pressure exceeds a pressure threshold.

In these embodiments, the first pressure relief valve 323 and/or the second pressure relief valve 333 are in a closed state in a normal state, and prevent steam from being discharged from the second end of the first straight pipe section 321 and/or the second straight pipe section 331, and when the pressure inside the liquid heating container exceeds a pressure threshold, the steam inside can flush the first pressure relief valve 323 and/or the second pressure relief valve 333, so that the steam is quickly discharged by the first pressure relief valve 323 and/or the second pressure relief valve 333, and a danger due to the fact that the steam inside the container body 70 cannot be discharged and the pressure is too high is avoided.

In practical application, the first pressure release valve 323 and the second pressure release valve 333 mainly play a role in two situations, firstly, when the air duct 310 is blocked and the like, the air duct loses the function, and after normal ventilation is not realized, the air pressure in the liquid heating container is high, and the steam pushes the first pressure release valve 323 and/or the second pressure release valve 333 open to avoid scalding hands due to splashing of boiling water; secondly, when the liquid in the liquid heating container is boiled for a long time and the steam is too much, the air pressure in the container body 70 is low and is in a vacuum state, at this time, the first pressure release valve 323 and/or the second pressure release valve 333 are/is automatically opened, the internal and external pressures of the container body 70 are balanced, and the kettle lid is prevented from being incapable of being opened.

In some embodiments, the first relief valve 323 and/or the second relief valve 333 are elastic relief valves, and the first relief valve 323 and/or the second relief valve 333 include a pressure relief valve plate and a pressure relief valve port, and the pressure relief valve plate has a cross-shaped groove, so that when the pressure exceeds a pressure threshold, the internal steam can flush the pressure relief valve plate to open the pressure relief valve port, and when the pressure is lower than the pressure threshold, the pressure relief valve plate can return to a closed state under the action of the elastic force to close the pressure relief valve port. So set up, increased the passageway of pressure release for the lid subassembly through first relief valve 323, second relief valve 333 for the lid can be through many passageway exhaust steam of steam outlet 230, first relief valve 323, second relief valve 333, has set up reserve exhaust scheme for the lid subassembly abnormal conditions appears, promotes the security of product. The working principle of the pressure release valve is as follows: under a normal state, the cross groove of the first pressure release valve 323 and/or the second pressure release valve 333 is closed, so that a pressure release valve port can be blocked, steam is normally discharged through the steam outlet 230, and under the condition that the pressure inside the liquid heating container exceeds a pressure threshold value, the steam inside rushes open the cross groove, so that the steam is rapidly discharged from the first pressure release valve 323 and/or the second pressure release valve 333, the pressure inside the liquid heating container is effectively released, and the explosion risk caused by the overlarge pressure inside the container body 70 is avoided; further, after the pressure in the liquid heating container is restored to be balanced, the cross groove is restored to be closed, and the tightness of the pressure relief valve port is guaranteed.

In some embodiments, as shown in fig. 1 and 2, the second end of the airway tube 310 is higher than the first end of the airway tube 310 along the height of the cover assembly. Due to the arrangement, since the second end of the air duct 310 connected with the steam outlet 230 is high, and the first end connected with the steam inlet 220 is low, as shown in fig. 2, an arrow in fig. 2 represents the flowing direction of the condensed water, after the steam is condensed, the condensed water in the air duct 310 can flow to the steam inlet 220 under the action of gravity and flow back to the container body 70 through the steam inlet 220, so that the water loss is reduced, and the energy is saved. In addition, because the air duct 310 is spiral, the pipeline of the spiral air duct 310 is smoother, and the resistance is small, thereby being beneficial to the backflow of condensed water.

In order to reinforce the installation of the airway tube 310, in some embodiments, as shown in fig. 1, 2, 3 and 5, a plurality of first support ribs 40 are disposed on the upper surface of the bottom wall of the chamber, and first engagement grooves 410 adapted to the airway tube 310 are disposed on the first support ribs 40; the bottom wall of the upper cover 10 is provided with a second supporting rib 110 extending downwards, the second supporting rib 110 is provided with a second matching groove 111, and the air duct 310 is enclosed by the second matching groove 111 and the first matching groove 410.

In these embodiments, the installation of the airway tube 310 is further defined by the first and

second mating grooves

410, 111, such that the installation of the airway tube 310 is stable. Specifically, a plurality of first supporting ribs 40 are arranged on the upper surface of the bottom wall of the cavity, a second supporting rib 110 extending downwards is arranged on the bottom wall of the upper cover 10, a first matching groove 410 is arranged on the first supporting rib 40, a second matching groove 111 is arranged on the second supporting rib 110, and the air duct 310 is installed in a space enclosed by the first matching groove 410 and the second matching groove 111.

In one embodiment, the method of installing the pressure relief vent assembly 30 is described in detail below: optionally, the cover assembly further includes a straight pipe connector (not shown) connected to the steam inlet 220 and extending upward, and the straight pipe connector may be an integral connector with the lower cover 20 or a separate component. Under the condition that the straight pipe joint is an independent part, the straight pipe joint is firstly installed in the steam inlet 220 of the lower cover 20, then the air guide pipe 310 is clamped into the first matching groove 410 arranged on the lower cover 20, the two ends of the air guide pipe 310 are correspondingly connected with the first joint 320 and the second joint 330, the first joint 320 and the straight pipe joint are connected, and then the upper cover 10 is installed to complete the assembly.

In some embodiments, the first joint 320 and/or the second joint 330 are plastic or silicone or metal pieces.

In these embodiments, the material of the first connector 320 and/or the second connector 330 can be widely selected, which can improve the production efficiency and reduce the production cost. Specifically, the first joint 320 and/or the second joint 330 are plastic parts, which have low cost, and can be mass-produced by an injection molding process, thereby facilitating processing; the first connector 320 and/or the second connector 330 are/is a silica gel member, which has the advantages of no toxicity, no harm, good safety, good elasticity, long service life and the like, and is suitable for manufacturing accessories of food containers. The first joint 320 and/or the second joint 330 are metal pieces, which have the advantages of high structural strength, safe material, uneasy deformation, long service life, etc., and preferably made of stainless steel.

In some embodiments, the airway tube 310 is a plastic or silicone piece or a metal piece. So set up for the material selectivity of air duct 310 is extensive, can improve production efficiency, reduction in production cost. Specifically, the air duct 310 is a plastic part, which has low cost, and can be mass-produced by an injection molding process, thereby being convenient for processing; the air duct 310 is a silica gel member, and silica gel has the advantages of no toxicity, no harm, good safety, good elasticity, long service life and the like, and is suitable for manufacturing accessories of food containers. The air duct 310 is a metal member, and the metal member has the advantages of high structural strength, safe material, difficult deformation, long service life and the like, and preferably adopts stainless steel material.

Optionally, the first pressure release valve 323 and/or the second pressure release valve 333 are made of a silica gel material or a rubber material, preferably a silica gel material, and the silica gel has the advantages of being non-toxic, harmless, good in safety, good in elasticity, long in service life and the like, and is suitable for manufacturing accessories of food containers.

It can be understood that, under the condition that the first joint 320 and the second joint 330 are made of plastic materials and metal materials, through holes can be made at both ends of the first straight pipe section 321 and the second straight pipe section 331, and the first pressure release valve 323 and the second pressure release valve 333 are separately processed and produced, the first pressure release valve 323 and the second pressure release valve 333 are made into structures similar to a silicone cap, the first pressure release valve 323 is sleeved at the second end of the first straight pipe section 321, and the second pressure release valve 333 is sleeved at the second end of the second straight pipe section 331.

In some embodiments, as shown in fig. 5, the cover assembly further comprises: a cover plate 50 connected to the lower side of the lower cover 20, the cover plate 50 having a plurality of ventilation holes 510; and the sealing ring 60 is sleeved on the periphery of the cover plate 50.

In these embodiments, the cover plate 50 and the sealing ring 60 are mounted below the lower cap 20, and when the cap assembly is closed with the container body 70, the cover plate 50 and the sealing ring 60 are located inside the container body 70 and tightly close the container opening, so as to seal the container opening. The vent holes 510 can communicate with the steam inlet 220, prevent the cover plate 50 from blocking the steam inlet 220, and ensure that the steam inlet 220 smoothly conducts steam.

In some embodiments, specifically, the cover plate 50 is provided with a plurality of screw holes, and the connection between the lower cover 20 and the cover plate 50 is achieved by passing screws through the screw holes and locking the screws on the lower cover 20. Further, the lower cover 20 includes a cover bottom wall and a cover side wall surrounding the cover bottom wall, a flange is disposed at the top end of the cover side wall, a groove adapted to the flange is disposed on the inner periphery of the sealing ring 60, and the flange is clamped in the groove to realize the tight fit between the sealing ring 60 and the cover plate 50. Further, a cavity is enclosed between the cover plate 50 and the lower cover 20, a plurality of ventilation holes 510 are formed in the cover plate 50, and steam in the container body 70 enters the cavity through the ventilation holes 510 and then enters the steam inlet 220 formed in the lower cover 20, and is then discharged through the pressure relief exhaust assembly 30.

As shown in fig. 6 and 7, according to a second aspect of the present invention, there is provided a liquid heating vessel comprising: a container body 70, a container mouth being provided at the top of the container body 70; and the cover body assembly in any one of the above technical schemes, wherein the cover body assembly is covered on the container opening.

In practical application, the cover body assembly is covered on the container opening, and in this state, the sealing ring 60 is compressed and sealed at the container opening, so that the container opening is sealed.

In some embodiments, the liquid heating vessel further comprises a water pouring port and a handle arranged oppositely, optionally, a condensation channel is arranged in the handle, and the steam outlet 230 is communicated with the condensation channel, so that the steam in the cover body assembly can flow into the condensation channel of the handle, and be condensed into water drops in the condensation channel, and then be discharged.

Of course, it is understood that the condensation passage may be provided in the outer casing at the outer periphery of the container body 70 and communicate with the steam outlet 230, and also function to collect the condensed water. The arrangement position of the condensation channel is not limited, and specific situations in the aspect are not listed, but the invention belongs to the protection scope of the scheme without departing from the design concept.

Fig. 6 shows a cross-sectional view of the liquid heating container with the pouring nozzle facing downward, and it can be seen in fig. 6 that a part of the air duct 310 is higher than the liquid level in the container body 70, so that the liquid cannot flow out through the air duct 310; fig. 7 shows a cross-sectional view of the liquid heating vessel in another angled pouring state, and it can be seen in fig. 7 that a portion of the air duct 310 is also above the liquid level in the vessel body 70, so that liquid cannot flow out through the air duct 310.

Although the embodiments of the present invention have been described in detail above, those skilled in the art may 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 such modifications and variations would still fall within the spirit and scope of the embodiments of the present invention, as defined by the appended claims, as seen by those skilled in the art.

Claims

1. A cover assembly, comprising:

an upper cover (10);

the lower cover (20) is connected below the upper cover (10), an accommodating cavity (210) is formed by enclosing the upper cover (10) and the lower cover (20), a steam inlet (220) is formed in the bottom wall of the accommodating cavity (210), and a steam outlet (230) is formed in the side wall of the accommodating cavity (210);

pressure release exhaust subassembly (30) sets up hold in chamber (210), pressure release exhaust subassembly (30) include air duct (310), the first end of air duct (310) with steam inlet (220) are linked together, the second end of air duct (310) with steam outlet (230) are linked together, air duct (310) coil and are the heliciform.

2. The cover assembly of claim 1, wherein the pressure relief vent assembly (30) further comprises:

a first connector (320) and a second connector (330), the first connector (320) connecting the first end of the airway tube (310) and the steam inlet (220), the second connector (330) connecting the second end of the airway tube (310) and the steam outlet (230).

3. The cover assembly of claim 2,

the first joint (320) and the second joint (330) are of a one-piece construction; or

The first joint (320) and the second joint (330) are of a split structure.

4. The cover assembly of claim 2,

the first connector (320) comprises a first straight pipe section (321) and a first connecting section (322) which is convexly arranged on the side wall of the first straight pipe section (321), the first connecting section (322) is communicated with the first straight pipe section (321), the first connecting section (322) is connected with the first end of the air guide pipe (310), and the first end of the first straight pipe section (321) is connected with the steam inlet (220);

the second connector (330) comprises a second straight pipe section (331) and a second connecting section (332) which is convexly arranged on the side wall of the second straight pipe section (331), the second connecting section (332) is communicated with the second straight pipe section (331), the second connecting section (332) is connected with the second end of the air guide pipe (310), and the first end of the second straight pipe section (331) is connected with the steam outlet (230).

5. The cover assembly of claim 4,

a second end of the first straight pipe section (321) is provided with a first pressure relief valve (323), and the first pressure relief valve (323) can be opened when the pressure exceeds a pressure threshold value; and/or

The second end of the second straight pipe section (331) is provided with a second pressure relief valve (333), the second pressure relief valve (333) being openable in case the pressure exceeds a pressure threshold.

6. The cover assembly according to any one of claims 1 to 5,

the second end of the air duct (310) is higher than the first end of the air duct (310) along the height direction of the cover body assembly.

7. The cover assembly according to any one of claims 1 to 5,

a plurality of first supporting ribs (40) are arranged on the upper surface of the cavity bottom wall, and first matching grooves (410) matched with the air guide pipes (310) are formed in the first supporting ribs (40);

the bottom wall of the upper cover (10) is provided with a second supporting rib (110) extending downwards, a second matching groove (111) is formed in the second supporting rib (110), and the air guide pipe (310) is enclosed by the second matching groove (111) and the first matching groove (410).

8. The cover assembly of any one of claims 2 to 5,

the first joint (320) and/or the second joint (330) are plastic parts, silicon parts or metal parts;

the air duct (310) is a plastic part, a silicon part or a metal part.

9. The cover assembly of any one of claims 1-5, further comprising:

the cover plate (50) is connected below the lower cover (20), and a plurality of air holes (510) are formed in the cover plate (50);

and the sealing ring (60) is sleeved on the periphery of the cover plate (50).

10. A liquid heating vessel, comprising:

a container body (70), the top of the container body (70) having a container mouth; and

the cover assembly of any one of claims 1 to 9, which covers the container mouth.