CN115736647A

CN115736647A - Cover assembly and liquid heating container

Info

Publication number: CN115736647A
Application number: CN202211370367.3A
Authority: CN
Inventors: ***; 舒再善
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-03-07

Abstract

The application provides a lid subassembly and liquid heating container, the lid subassembly includes: the lower cover is provided with at least two upward protruding anti-overflow columns, hollow parts are arranged in the anti-overflow columns, a steam inlet penetrating through the lower cover is arranged in each anti-overflow column, and the steam inlet is communicated with the hollow parts; and the anti-dumping valve is arranged in the hollow part, one of the outer side wall of the anti-dumping valve and the inner side wall of the hollow part is provided with a threaded part, the other one is a smooth surface column, and a spiral channel is formed between the threaded part and the smooth surface column. The lid body assembly that this aspect embodiment provided, the effect of exhaust steam can be played to the heliciform passageway to, also can block the impact of rivers in the twinkling of an eye that the liquid heating container topples over, thereby can prevent effectively that this internal water of container from spilling by anti-overturning valve department, satisfy the demand of liquid heating container under anti-overturning state.

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, in order to guarantee the efficiency and the thermal insulation performance of boiling water, the pot lid of liquid heating container adopts seal structure mostly on the market, and in order to avoid a large amount of vapor that produce when boiling water to cause the internal pressure of kettle too big and take place danger, has designed and has prevented empting the pot lid and smoothly discharge with the confession steam, prevents empting the pot lid and can also prevent water blowout when liquid heating container emptys. The existing anti-toppling kettle cover generally comprises at least two exhaust pipelines and at least two steel balls, and has the defects of more parts, complex structure, high part processing cost, complex assembly process and long consumed time.

Disclosure of Invention

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 a first aspect of the present invention, there is provided a lid assembly for covering a top opening of a container body of a liquid heating container, the lid assembly comprising: the lower cover is provided with at least two upward-protruding anti-overflow columns, hollow parts are arranged in the anti-overflow columns, a steam inlet penetrating through the lower cover is arranged in each anti-overflow column, and the steam inlets are communicated with the hollow parts; and the anti-dumping valve is arranged in the hollow part, one of the outer side wall of the anti-dumping valve and the inner side wall of the hollow part is provided with a threaded part, the other one of the outer side wall of the anti-dumping valve and the inner side wall of the hollow part is a smooth surface column, and a spiral channel is formed between the threaded part and the smooth surface column.

The lid subassembly that this aspect embodiment provided, the lower cover is provided with anti-overflow post, and anti-tipping valve installs in the cavity of anti-overflow post, and, one of the lateral wall of anti-tipping valve and the inside wall of cavity is provided with screw thread portion, and another is the plain noodles post, forms the heliciform passageway between screw thread portion and the plain noodles post, and the heliciform passageway can play the effect of discharge steam, and, also can block the impact of the instantaneous rivers of empting at the liquid heating container, thereby can prevent effectively that this internal water of container from being spilt by anti-tipping valve department. In particular, in the case of a liquid heating vessel in normal condition, the helical channel is able to evacuate the steam inside the vessel body; under the condition that liquid heating container is in the state of empting, the valve of preventing empting of one can get into the aquatic, liquid can only slowly pass through heliciform passageway, even can not pass through heliciform passageway completely, prevent liquid outflow lid subassembly, and another valve of preventing empting exceeds the liquid level, steam can be followed the heliciform passageway discharge that exceeds the liquid level, carry out the pressure release, avoid the inside steam of container body can't discharge, pressure is too big and take place dangerously, and then satisfy the demand of liquid heating container under the state of preventing empting.

Further, compare in the correlation technique prevent empting the pot lid and generally include the structure of two at least exhaust pipe and two at least steel balls, the technical scheme of this application, only prevent empting the cooperation of valve and anti-overflow post and can cover body assembly prevent empting the function to and normally exhaust the function, the part is few, greatly reduced manufacturing cost, and, also simplified cover body assembly's assembly process, improved production efficiency.

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 difference between the diameter of the threaded portion and the diameter of the polished face post ranges from-0.5 mm to 0.5mm. Within the range, the airtightness of the spiral channel formed by enclosing the threaded part and the smooth surface column can be ensured, and the situation that the anti-dumping valve is difficult to install in the anti-overflow column or the anti-dumping valve is easy to loosen and fall off when the anti-dumping valve is installed in the anti-overflow column due to the fact that the difference value between the diameter of the threaded part and the diameter of the smooth surface column is too small or too large can be avoided. Specifically, 3 matching conditions of the threaded portion and the plain post are included in the range, one of the conditions is that a gap is formed between the threaded portion and the plain post, the unilateral size of the gap is less than or equal to 0.25mm, the size of the gap is small, little steam or water flows out of the gap and can be ignored, most of the steam and the water still need to flow out through the spiral channel, and therefore the water in the container body can be effectively prevented from spilling from the anti-tipping valve, and the anti-tipping valve cannot be easily loosened and fall off in the anti-tipping column due to the small gap; and if the gap value between the thread part and the plain surface column is larger than 0.25mm, high-temperature water can be sprayed out from the spiral channel positioned below the liquid heating container when the liquid heating container is toppled. And secondly, the difference value of the diameters of the threaded part and the plain surface column is 0mm, and the threaded part and the plain surface column are just attached under the condition, so that the spiral channel can be ensured to have good effects of discharging steam and effectively preventing water in the container body from spilling from the anti-dumping valve. And thirdly, the screw thread part and the smooth surface column are in interference fit, the unilateral interference magnitude is less than or equal to 0.25mm, the anti-overflow valve cannot be installed in the anti-overflow column difficultly, and if the unilateral interference magnitude is greater than 0.25mm, the spiral channel is too narrow, high-temperature gas in the liquid heating container cannot be discharged in time, and safety risk can be generated.

In some embodiments, the anti-dumping valve is provided with a threaded portion on the outer side wall, and the inner side wall of the hollow portion is a smooth surface column. So set up, with screw thread portion setting on the lateral wall of preventing empting the valve to make the inside wall of well kenozooecium be smooth surface post, can simplify the structure of mould, make things convenient for the injection moulding of lower cover.

In some embodiments, the threaded portion includes a thread that wraps around a plurality of turns in a height direction of the anti-tipping valve. So set up for the length of screw thread portion is longer, is difficult to spill liquid, and specifically, under the condition that liquid heating container topples over, this internal liquid of container will slowly pass through helical channel to prevent liquid spill as far as possible.

In some embodiments, the threaded portion includes a plurality of threads that are arranged in parallel and that are wound a plurality of times in a height direction of the anti-tipping valve. So set up, the area of ventilating of the heliciform passageway that forms between the inside wall of many threads and well kenozooecium is bigger, and the speed of exhaust steam is faster, avoids inside the gathering too much steam of container body can't discharge, the pressure is too big and take place danger.

In some embodiments, the cover assembly further comprises: the anti-overflow valve plate is provided with a safety air inlet, a safety air outlet and a safety channel communicated with the safety air inlet and the safety air outlet, the safety air inlet is communicated with the steam inlet, and the anti-overflow valve plate blocks the safety air outlet; wherein, under the condition that the pressure in the container body is greater than the set threshold value, the pressure can break the anti-overflow valve plate.

In the embodiments, in a state that the internal pressure of the liquid heating container is normal, the anti-overflow gasket can inhibit steam or liquid from directly passing through a passage of the safety air inlet, the safety channel and the safety air outlet, so that the safety air outlet can be blocked when the liquid heating container is in a toppling state, and the liquid is prevented from spilling; the safety air inlet, the safety channel, the safety air outlet and the anti-overflow valve plate are arranged to prevent hot water from being sprayed out to hurt people due to overlarge air pressure in the container body under the condition that all spiral channels are blocked. Specifically, under the condition that the pressure in the liquid heating container exceeds a set threshold value, steam in the container body can enter the safety air inlet, the safety channel and the safety air outlet and flush the anti-overflow valve plate, so that the steam is quickly discharged from the safety outlet, and dangers caused by incapability of discharging the steam in the container body and overlarge pressure are avoided.

In some embodiments, the top end of the anti-dumping valve is provided with a fixing part, the anti-overflow valve plate is provided with a matching part, and the fixing part and the matching part are matched with each other so that the anti-overflow valve plate is connected to the top end of the anti-dumping valve. So set up, the top of anti-overflow valve block and anti-dump valve is passed through fixed part and cooperation portion and is realized connecting, has realized the installation of anti-overflow valve block.

In some embodiments, the fixing portion is a hook, and the mating portion is a hook hole, and the hook passes through the hook hole and can hook the upper surface of the anti-overflow valve plate, so that the anti-overflow valve plate is attached to the upper surface of the anti-tipping valve. So set up, trip and card hole both make things convenient for the assembly, have better ground cohesion again, difficult pine takes off, the trip uses with the card hole cooperation, under normal use condition, the upper surface that the trip caught on the anti-overflow valve block makes the anti-overflow valve block laminating plug the insurance gas outlet on the surface of preventing empting the valve, under abnormal conditions, under the inside atmospheric pressure effect of container body, the anti-overflow gasket is forced to warp, the insurance gas outlet is opened, gaseous can be by insurance gas outlet discharge pressure release, in addition, after the pressure of container body inside resumes normal pressure, the shape of anti-overflow valve block resumes, continue shutoff insurance gas outlet, thereby can repetitious usage.

In some embodiments, a protrusion protruding downwards is arranged on the bottom surface of the anti-dumping valve, and the side part of the protrusion is provided with a gas guide port which is communicated with the steam inlet and the safety gas inlet. Due to the arrangement, the protruding part is positioned between the lower cover and the bottom surface of the anti-dumping valve, so that the anti-dumping valve can be supported, and the condition that the bottom surface of the anti-dumping valve is directly contacted with the lower cover to cause that a safety air inlet on the bottom surface of the anti-dumping valve is blocked is avoided; and, set up the lateral part intercommunication steam inlet and the insurance air inlet at the bulge with leading the gas port, simplified the structure, the convenient setting.

In some embodiments, the steam inlet is horizontally offset from the safety inlet. So set up, when liquid heating container emptys, the impact force of the inside water of container body can not directly be used insurance air inlet via steam inlet, can avoid in the twinkling of an eye that liquid heating container emptys like this, because the impact force that the water rocked the production is used on the anti-overflow valve piece and lead to the anti-overflow valve piece to be washed away to ensure that the anti-overflow valve piece can be in shutoff insurance gas outlet under the state of empting at liquid heating container, avoid liquid to spill.

In some embodiments, the steam inlet is located at one side edge of the bottom wall of the hollow portion away from the center of the lower cover. So set up for steam inlet is located the peripheral edge that is close to the lower cover on the diapire of well kenozooecium as far as possible, and under liquid heating container was in the state of empting like this, the anti-overturning valve that is located the upside can be in higher position to reduce the risk of being crossed by water as far as possible, and then can keep the route, ensure that steam can flow by the heliciform passageway, avoid the inside steam of container body can't discharge, pressure is too big and take place danger, further satisfy the demand of liquid heating container under preventing empting the state.

In some embodiments, the cover assembly further comprises: the middle cover is connected above the lower cover, an air guide channel is formed by enclosing the lower surface of the middle cover and the lower cover, a steam outlet communicated with the outside is formed in the side wall of the lower cover and/or the middle cover, and the air guide channel is communicated with the spiral channel and the steam outlet.

In the embodiments, the anti-dumping valve, the lower cover and the middle cover form an air guide channel, and the steam outlet is arranged on the middle cover and/or the lower cover, so that steam discharged from the spiral channel of the anti-dumping valve can directly flow to the steam outlet through the air guide channel, the steam can quickly reach the steam outlet, and then the steam outlet discharges the cover body assembly, the time from boiling to tripping of a power switch is reduced, meanwhile, the contact surface of steam condensation is also reduced, and the generation of condensed water in the cover body assembly is reduced.

According to a second aspect of the present invention, there is provided a liquid heating vessel comprising: a container body having an opening at a top thereof; and the cover body assembly in any one of the technical schemes is covered at the 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.

In some embodiments, the liquid heating container further comprises a water pouring port and a handle which are arranged oppositely, and a steam switch is arranged in the handle; the quantity of the anti-dumping valves is two, and the two anti-dumping valves are symmetrically arranged along a connecting line between the water pouring port and the handle.

In the embodiments, the handle is used as a fulcrum when the liquid heating container is poured, and the two anti-dumping valves are symmetrically arranged on the connecting line between the water pouring port and the handle, so that no matter which side the liquid heating container is poured, one anti-dumping valve can not be submerged by the water surface, the anti-dumping valve positioned on the upper side keeps a passage, steam can be ensured to flow out from the spiral channel, the phenomenon that steam in the container body cannot be discharged and danger is caused by overlarge pressure is avoided, and the requirement of the liquid heating container in an anti-dumping state is further met. Further, a steam switch is arranged in the handle, specifically, a container steam outlet is arranged on the container body, the container steam outlet is communicated with the steam outlet and further communicated with the inside of the handle, so that steam in the cover body assembly can flow into the handle through the steam outlet and the container steam outlet and is condensed in the handle or discharged to the outside; further, steam can trigger the steam switch under certain conditions, avoids liquid heating container abnormal operation, prevents to dry combustion method and takes place danger, promotes the security of product.

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

FIG. 2 is a schematic cross-sectional view of a cover assembly provided in accordance with an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a cover assembly according to an embodiment of the present invention showing an anti-dump valve with an anti-spill valve panel in a closed position;

FIG. 4 is a schematic cross-sectional view of a cover assembly according to an embodiment of the present invention showing an anti-dump valve with an anti-spill valve panel in an open position;

FIG. 5 is another cross-sectional schematic view of the cover assembly capable of illustrating the anti-tip valve, with the spill valve plate in a closed position, provided in accordance with an embodiment of the present invention;

FIG. 6 is another cross-sectional schematic view of the cover assembly showing the anti-dump valve provided in accordance with an embodiment of the present invention, with the anti-spill valve panel in an open position;

FIG. 7 is a schematic top view of a portion of the structure of a cover assembly provided in accordance with an embodiment of the present invention;

FIG. 8 is a schematic structural view of a cover assembly provided in accordance with an embodiment of the present invention in an inverted state;

FIG. 9 is another schematic top view of a portion of the structure of a cover assembly provided in accordance with an embodiment of the present invention;

FIG. 10 is a schematic structural view of an anti-dump valve of a cover assembly provided in accordance with an embodiment of the present invention;

FIG. 11 is a schematic structural view of an anti-dump valve of a cover assembly provided in accordance with an embodiment of the present invention in an inverted state.

Fig. 1 to 11 are numbered as follows:

10 lower cover, 110 anti-overflow column, 111 hollow part, 120 steam inlet,

20 anti-dumping valve, 210 thread part, 220 safety air inlet, 230 safety channel, 240 safety air outlet, 250 bulge part, 260 air guide port, 270 clamping hook,

30, the anti-overflow valve plate, 310,

40, a cover, 410 a steam outlet,

50, covering the upper part of the cover,

60 container body, 610 opening, 620 water pouring opening and 630 container steam outlet.

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 present disclosure, in addition to operations that 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, apparatus 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.

In addition, in the description of the examples, when it is considered that detailed description of 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 11.

As shown in fig. 1 to 8, an embodiment of the first aspect of the present invention provides a cover assembly for covering a top opening 610 of a container body 60 of a liquid heating container, the cover assembly comprising: the anti-overflow device comprises a lower cover 10, wherein at least two anti-overflow columns 110 protruding upwards are arranged on the lower cover 10, hollow parts 111 are arranged inside the anti-overflow columns 110, a steam inlet 120 penetrating through the lower cover 10 is arranged in each anti-overflow column 110, and the steam inlet 120 is communicated with the hollow parts 111; and the anti-dumping valve 20 is arranged in the hollow part 111, one of the outer side wall of the anti-dumping valve 20 and the inner side wall of the hollow part 111 is provided with a threaded part 210, the other one is a smooth column, and a spiral channel is formed between the threaded part 210 and the smooth column.

In the cover assembly according to the embodiment of the present invention, the anti-overflow column 110 is disposed on the lower cover 10, the anti-toppling valve 20 is installed in the hollow portion 111 of the anti-overflow column 110, one of the outer side wall of the anti-toppling valve 20 and the inner side wall of the hollow portion 111 is provided with the threaded portion 210, and the other one is a smooth surface column, a spiral channel is formed between the threaded portion 210 and the smooth surface column, the spiral channel can play a role in discharging steam, and can also block the impact of the instantaneous water flow when the liquid heating container is toppled, so that the water in the container body 60 can be effectively prevented from being spilled out from the anti-toppling valve 20. Specifically, with the liquid heating vessel in a normal state, the helical channel is able to vent the vapor within the vessel body 60; under the condition that liquid heating container is in the state of empting, valve 20 can get into the aquatic of preventing empting of one, liquid can only slowly pass through heliciform passageway, even can not pass through heliciform passageway completely, prevent liquid outflow lid subassembly, and another prevents that valve 20 is higher than the liquid level of empting, steam can be followed the heliciform passageway discharge of higher liquid level, carry out the pressure release, avoid the inside steam of container body 60 can't discharge, pressure is too big and take place dangerously, and then satisfy the demand of liquid heating container under the state of preventing empting.

Further, compare in the structure that prevents empting pot lid in the correlation technique and generally include two at least exhaust pipe and two at least steel balls, the technical scheme of this application, only can the realization of lid subassembly prevent empting the function through preventing the cooperation of dump valve 20 and anti-overflow post 110 to and normally exhaust the function, the part is few, greatly reduced manufacturing cost, and, also simplified the assembly process of lid subassembly, improved production efficiency.

In some embodiments, the difference between the diameter of threaded portion 210 and the diameter of the polished face post ranges from-0.5 mm to 0.5mm. Within this range, the airtightness of the spiral passage formed by the surrounding between the threaded portion 210 and the plain surface pillar can be ensured, and the difficulty in mounting the anti-dump valve 20 into the anti-dump column 110 or the easiness in loosening and dropping of the anti-dump valve 20 into the anti-dump column 110 due to the excessively small or large difference between the diameter of the threaded portion 210 and the diameter of the plain surface pillar can be prevented. Specifically, 3 kinds of matching conditions of the threaded portion 210 and the plain post are included in the range, one of the conditions is that a gap is formed between the threaded portion 210 and the plain post, the single side size of the gap is less than or equal to 0.25mm, the gap size is small, the amount of steam or water flowing out of the gap is small and can be ignored, most of the steam and water still need to flow out through the spiral channel, so that the water in the container body 60 can be effectively prevented from spilling out of the anti-tipping valve 20, and the anti-tipping valve 20 cannot easily loosen and fall off in the anti-tipping column 110 due to the small gap; and if the gap between the screw part 210 and the plain pillar is greater than 0.25mm, high-temperature water is sprayed from the spiral passage located below when the liquid heating container is poured. Secondly, the difference between the diameters of the threaded portion 210 and the plain pillar is 0mm, in this case, the threaded portion 210 and the plain pillar are just attached to each other, so that the spiral channel can be ensured to have good steam discharging effect and the effect of effectively preventing the water in the container body 60 from spilling from the anti-tipping valve 20. Thirdly, interference fit between the thread part 210 and the smooth column, and the unilateral interference magnitude less than or equal to 0.25mm does not cause the anti-dumping valve 20 to be difficult to install in the anti-overflow column 110, and if the unilateral interference magnitude is greater than 0.25mm, the spiral channel is too narrow, high-temperature gas in the liquid heating container can not be removed in time, and safety risk can be generated.

In some embodiments, as shown in fig. 1 to 7, 10 and 11, the anti-tipping valve 20 is provided with a threaded portion 210 on the outer side wall, and the inner side wall of the hollow portion 111 is a smooth surface column. With such an arrangement, the thread portion 210 is disposed on the outer side wall of the anti-tipping valve 20, and the inner side wall of the hollow portion 111 is a smooth surface column, so that the structure of the mold can be simplified, and the injection molding of the lower cover 10 is facilitated.

With respect to the specific structure of the threaded portion 210, in some embodiments, as shown in fig. 1, 10, and 11, the threaded portion 210 includes one thread that is wound a plurality of times in the height direction of the anti-tipping valve 20. So set up, make the length of screw thread portion 210 longer, be difficult to spill liquid, specifically, in the case that liquid heating vessel topples over, the liquid in container body 60 will slowly pass through the heliciform passageway, thereby stops liquid as far as possible to spill.

Regarding the specific structure of the threaded portion 210, in some embodiments, the threaded portion 210 includes a plurality of threads (not shown), and the plurality of threads are distributed in parallel and wound around a plurality of turns in the height direction of the anti-tipping valve 20. With such an arrangement, the spiral channel formed between the plurality of threads and the inner side wall of the hollow portion 111 has a larger ventilation area, so that the steam discharging speed is higher, and the danger caused by the excessive steam accumulated in the container body 60 being unable to be discharged and the excessive pressure is avoided.

In some embodiments, as shown in fig. 1, 3, 4, 5, 6, and 9, the cover assembly further comprises: the anti-overflow valve plate 30 is provided with an insurance air inlet 220, an insurance air outlet 240 and an insurance channel 230 for communicating the insurance air inlet 220 and the insurance air outlet 240, the insurance air inlet 220 is communicated with the steam inlet 120, and the anti-overflow valve plate 30 blocks the insurance air outlet 240; wherein, under the condition that the pressure inside the container body 60 is greater than the set threshold value, the pressure can burst the anti-overflow valve sheet 30.

In these embodiments, in a normal internal pressure state of the liquid heating container, the anti-spill gasket can inhibit steam or liquid from directly passing through the path of the safety air inlet 220, the safety channel 230 and the safety air outlet 240, so that the safety air outlet 240 can be blocked in a toppling state of the liquid heating container, and the liquid is prevented from spilling; the safety air inlet 220, the safety passage 230, the safety air outlet 240 and the anti-overflow valve plate 30 are disposed to prevent the hot water from being sprayed out to hurt people due to the excessive pressure of the air in the container body 60 when all the spiral passages are blocked. Specifically, when the pressure inside the liquid heating container exceeds the set threshold, the steam inside the container body 60 can enter the safety air inlet 220, the safety channel 230 and the safety air outlet 240 and flush the anti-overflow valve plate 30, so that the steam is quickly discharged from the safety outlet, and the danger caused by the incapability of discharging the steam inside the container body 60 and the excessive pressure is avoided.

In some embodiments, as an example, optionally, as shown in fig. 10 and 11, the safety gas inlet 220 is located at the bottom end of the anti-tipping valve 20, the safety gas outlet 240 is located at the top end of the anti-tipping valve 20, and the safety gas inlet 220 and the safety gas outlet 240 are arranged at two ends of the anti-tipping valve 20 one after the other, which is convenient to arrange, and the safety channel 230 is made to be linear, so as to facilitate smooth gas outlet of the safety channel 230.

In some embodiments, as shown in fig. 5, 10 and 11, the top end of the anti-tip valve 20 is provided with a fixing portion, and the spill prevention valve sheet 30 is provided with a fitting portion, and the fixing portion and the fitting portion are fitted to each other so that the spill prevention valve sheet 30 is attached to the top end of the anti-tip valve 20. So set up, the top of anti-overflow valve block 30 and anti-overturning valve 20 is passed through fixed part and cooperation portion and is realized connecting, has realized the installation of anti-overflow valve block 30. Alternatively, the fixing portion and the mating portion may be a combination of a threaded hole and a screw, or a combination of a buckle and a buckling position, or a combination of the hook 270 and the hook hole 310, which may function as a connection.

In some embodiments, as shown in fig. 5, 10 and 11, the fixing portion is a hook 270, the matching portion is a hook hole 310, and the hook 270 passes through the hook hole 310 and can hook the upper surface of the spill prevention valve plate 30, so that the spill prevention valve plate 30 fits on the upper surface of the anti-tipping valve 20. So set up, trip 270 and card hole 310 both make things convenient for the assembly, have better ground cohesion again, difficult pine takes off, trip 270 uses with the cooperation of card hole 310, under the normal use condition, trip 270 catches on the upper surface of anti-overflow valve block 30 and makes the laminating of anti-overflow valve block 30 prevent empting the surface of valve 20 and plug up insurance gas outlet 240, under abnormal conditions, under the inside atmospheric pressure of container body 60 acts on, the anti-overflow gasket is forced to be out of shape, insurance gas outlet 240 is opened, gas can be by the pressure release of insurance gas outlet 240 discharge, furthermore, after normal pressure is recovered to at the inside pressure of container body 60, the shape of anti-overflow valve block 30 resumes, continue shutoff insurance gas outlet 240, thereby can repetitious usage.

In practical application, optionally, the pressure release valve block is thin plastic sheet, has with low costs, the advantage of convenient processing production to, because thinner plastic sheet has good elasticity, can be in the resilient after the bending, consequently, can also be timely resilient after being broken away by steam, continue shutoff insurance gas outlet 240, the reliability is high, long service life.

In some embodiments, as shown in fig. 3, 4, 10 and 11, a protrusion 250 protruding downward is provided on the bottom surface of the anti-toppling valve 20, and a side portion of the protrusion 250 has a gas guide opening 260, and the gas guide opening 260 communicates the steam inlet 120 and the safety inlet 220. With such an arrangement, the protrusion 250 is located between the lower cap 10 and the bottom surface of the anti-tipping valve 20, and can play a role of supporting the anti-tipping valve 20, so as to prevent the safety air inlet 220 located on the bottom surface of the anti-tipping valve 20 from being blocked due to the direct contact between the bottom surface of the anti-tipping valve 20 and the lower cap 10; and, the air guide opening 260 is arranged at the side of the protruding part 250 to communicate the steam inlet 120 and the safety air inlet 220, so that the structure is simplified and the arrangement is convenient.

In practical applications, optionally, the number of the protrusions 250 is plural, the plural protrusions 250 can stably support the bottom surface of the anti-tipping valve 20, and further, a gap is provided between two adjacent protrusions 250, and the gap serves as a gas guide opening 260 to communicate the steam inlet 120 and the safety gas inlet 220.

In some embodiments, as shown in fig. 3 and 4, the steam inlet 120 is horizontally offset from the safety inlet 220. So set up, when liquid heating container emptys, the impact force of the inside water of container body 60 can not directly act on insurance air inlet 220 through steam inlet 120, can avoid in the twinkling of an eye that liquid heating container emptys like this, because the impact force that water rocked the production acts on anti-overflow valve piece 30 and leads to anti-overflow valve piece 30 to be washed open to ensure that anti-overflow valve piece 30 can be in shutoff insurance gas outlet 240 under the state of emptying at liquid heating container, avoid liquid to spill.

In some embodiments, as shown in fig. 7, the steam inlet 120 is located at one side edge of the bottom wall of the hollow portion 111 away from the center of the lower cover 10. With the arrangement, the steam inlet 120 is located on the bottom wall of the hollow portion 111 and close to the outer peripheral edge of the lower cover 10 as much as possible, so that the anti-toppling valve 20 located on the upper side can be located at a higher position when the liquid heating container is toppled, the risk of water submerging is reduced as much as possible, a passage can be kept, steam can be ensured to flow out from the spiral channel, dangers caused by incapability of discharging steam and excessive pressure inside the container body 60 are avoided, and the requirement of the liquid heating container in the anti-toppling state is further met.

In some embodiments, as shown in fig. 1, 2, 3, 4, 5, and 6, the cover assembly further comprises: the middle cover 40 is connected above the lower cover 10, an air guide channel is formed between the lower surface of the middle cover 40 and the lower cover 10 in a surrounding manner, a steam outlet 410 communicated with the outside is arranged on the side wall of the lower cover 10 and/or the middle cover 40, and the air guide channel is communicated with the spiral channel and the steam outlet 410.

In the embodiments, an air guide channel is formed by the anti-tipping valve 20, the lower cover 10 and the middle cover 40, and the steam outlet 410 is arranged on the middle cover 40 and/or the lower cover 10, so that steam discharged from the spiral channel of the anti-tipping valve 20 can directly flow to the steam outlet 410 through the air guide channel, the steam can quickly reach the steam outlet 410, and then the steam outlet 410 discharges the cover body assembly, the time from boiling to tripping of a power switch is reduced, meanwhile, the contact surface for steam condensation is reduced, and the generation of condensed water in the cover body assembly is reduced.

Further, in some embodiments, as shown in fig. 1 to 6, the cover assembly further includes an upper cover 50 installed above the middle cover 40, and the upper cover 50 can shield parts on the middle cover 40, which is beneficial to the cleanness and the aesthetic appearance of the cover assembly.

Further, in some embodiments, as shown in fig. 1 to 6, the cover assembly further includes a sealing ring, and the sealing ring is sleeved on the periphery of the lower cover 10, so as to prevent water from flowing out between the cover assembly and the container body 60, and thus, the cover assembly and the container body 60 are connected in a sealing manner.

According to a second aspect of the present invention, there is provided a liquid heating vessel comprising: a container body 60, the top of the container body 60 having an opening 610; and a cover assembly as in any of the previous claims, the cover assembly covering the opening 610.

In some embodiments, as shown in fig. 1, 2, 5 and 6, the liquid heating vessel further comprises a water pouring port 620 and a handle arranged oppositely, wherein a steam switch is arranged in the handle; the number of the anti-dump valves 20 is two, and the two anti-dump valves 20 are symmetrically arranged along a line connecting the water pouring port 620 and the handle.

In these embodiments, since the handle is used as a fulcrum when the liquid heating container is poured, two anti-dumping valves 20 are symmetrically arranged on a connecting line between the water pouring port 620 and the handle, so that no matter which side the liquid heating container is poured, one anti-dumping valve 20 can not be submerged by the water surface, the anti-dumping valve 20 located on the upper side keeps a passage, steam can be ensured to flow out from the spiral channel, danger caused by incapability of discharging steam and excessive pressure inside the container body 60 is avoided, and the requirement of the liquid heating container in an anti-dumping state is further met. Further, a steam switch is arranged in the handle, specifically, a container steam outlet 630 is arranged on the container body 60, the container steam outlet 630 is communicated with the steam outlet 410 and further communicated to the inside of the handle, so that the steam in the cover body assembly can flow into the handle through the steam outlet 410 and the container steam outlet 630, and is condensed in the handle or discharged to the outside; further, steam can trigger the steam switch under certain conditions, avoids liquid heating container abnormal operation, prevents to dry combustion method and takes place danger, promotes the security of product.

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 invention. It will be understood that such modifications and variations will still fall within the spirit and scope of the embodiments of the invention as defined in the appended claims, as seen by those skilled in the art.

Claims

1. A cover assembly, the cover assembly comprising:

the anti-overflow device comprises a lower cover (10), wherein at least two anti-overflow columns (110) protruding upwards are arranged on the lower cover (10), hollow parts (111) are arranged inside the anti-overflow columns (110), a steam inlet (120) penetrating through the lower cover (10) is arranged in each anti-overflow column (110), and the steam inlets (120) are communicated with the hollow parts (111);

and the anti-dumping valve (20) is arranged in the hollow part (111), one of the outer side wall of the anti-dumping valve (20) and the inner side wall of the hollow part (111) is provided with a threaded part (210), the other one is a light surface column, and a spiral channel is formed between the threaded part (210) and the light surface column.

2. The cover assembly of claim 1,

the difference between the diameter of the threaded portion (210) and the diameter of the polished surface cylinder ranges from-0.5 mm to 0.5mm.

3. The cover assembly of claim 1,

the outer side wall of the anti-dumping valve (20) is provided with the thread part (210), and the inner side wall of the hollow part (111) is the smooth surface column.

4. The cover assembly of claim 1,

the thread part (210) comprises a thread, and one thread is wound for a plurality of times along the height direction of the anti-dumping valve (20); or

The thread part (210) comprises a plurality of threads which are distributed in parallel and wound for a plurality of times along the height direction of the anti-dumping valve (20).

5. The cover assembly of claim 1, further comprising:

the anti-overflow valve plate (30), the anti-dumping valve (20) is provided with an insurance air inlet (220), an insurance air outlet (240) and an insurance channel (230) communicated with the insurance air inlet (220) and the insurance air outlet (240), the insurance air inlet (220) is communicated with the steam inlet (120), and the anti-overflow valve plate (30) blocks the insurance air outlet (240);

wherein, under the condition that the pressure in the container body (60) is greater than a set threshold value, the pressure can open the anti-overflow valve plate (30).

6. The cover assembly of claim 5,

prevent the top of dump valve (20) and be provided with the fixed part, be provided with cooperation portion on anti-overflow valve piece (30), the fixed part with cooperation portion mutually supports so that anti-overflow valve piece (30) are connected prevent the top of dump valve (20).

7. The cover assembly of claim 6,

the fixed part is trip (270), cooperation portion is draw-in groove (310), trip (270) pass draw-in groove (310) and can catch the upper surface of anti-overflow valve block (30), so that anti-overflow valve block (30) laminating is in prevent the surface of dump valve (20).

8. The cover assembly of claim 5,

a protrusion part (250) protruding downwards is arranged on the bottom surface of the anti-dumping valve (20), a gas guide opening (260) is arranged on the side part of the protrusion part (250), and the gas guide opening (260) is communicated with the steam inlet (120) and the safety gas inlet (220).

9. The cover assembly of claim 5,

the steam inlet (120) and the safety air inlet (220) are arranged in a staggered mode in the horizontal direction.

10. The cover assembly of claim 9,

the steam inlet (120) is located at one side edge of the bottom wall of the hollow part (111) away from the center of the lower cover (10).

11. The cover assembly of claim 1, further comprising:

the middle cover (40) is connected above the lower cover (10), the lower surface of the middle cover (40) and the lower cover (10) are enclosed to form an air guide channel, a steam outlet (410) communicated with the outside is arranged on the side wall of the lower cover (10) and/or the middle cover (40), and the air guide channel is communicated with the spiral channel and the steam outlet (410).

12. A liquid heating vessel, comprising:

a container body (60), the top of the container body (60) having an opening (610); and

the cover assembly of any one of claims 1 to 11, said cover assembly being disposed over said opening (610).

13. A liquid heating vessel as claimed in claim 12,

the liquid heating container also comprises a water pouring port (620) and a handle which are oppositely arranged, and a steam switch is arranged in the handle;

the quantity of the anti-dumping valves (20) is two, and the two anti-dumping valves (20) are symmetrically arranged along a connecting line between the water pouring port (620) and the handle.