Liquid heating container

Abstract

The utility model relates to a liquid heating container which comprises a container body. The container cover is buckled on the container body and comprises an upper cover and a lower cover which are detachably connected, a containing cavity is defined by the upper cover and the lower cover, an exhaust hole communicated with the outside is formed in the upper cover, and a first air hole is formed in the lower cover; the waterproof breathable assembly is detachably installed in the containing cavity, the waterproof breathable assembly comprises a waterproof breathable film, and steam in the container body can flow to the exhaust hole through the first breathable hole and the waterproof breathable film; the outer bottom wall of the lower cover is provided with a pushing part, and the pushing part protrudes in the direction away from the upper cover in the axial direction of the lower cover. According to the container cover, a user can take out the waterproof breathable assembly to be cleaned by detaching the lower cover, the situation that the waterproof breathable film loses efficacy due to impurity blockage is avoided, the inner wall of the containing cavity can be cleaned, dirt attached to the inner wall of the containing cavity is removed, cleaning dead corners in the container cover are reduced, and the user can conveniently detach the lower cover by arranging the pushing part.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household appliances, in particular to a liquid heating container. BACKGROUND

[0002] The liquid heating container generally comprises a container body and a container cover buckled on the container body, the container cover is provided with an exhaust hole, and when the liquid heating container heats the liquid, the steam generated in the container body can be discharged outward from the exhaust hole to reduce the pressure in the container body.

[0003] A waterproof and breathable film is usually arranged in the container cover, the waterproof and breathable film has the characteristics of allowing steam to pass through and preventing water from passing through, and can prevent water leakage while discharging steam and reducing pressure. However, the existing container cover structure cannot be disassembled for cleaning the inside, and the waterproof and breathable film is prone to blockage and failure. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a liquid heating container, which can solve the problem of inconvenient cleaning of the inside of the container cover of the liquid heating container in the prior art.

[0005] The present application provides a liquid heating container, which comprises a container body, a container cover buckled on the container body, and a waterproof and breathable assembly.

[0006] In the above scheme, the waterproof and breathable film has air permeability and waterproofness, when the liquid heating container heats the liquid, the container cover is buckled on the container body, the steam generated by the liquid heating can flow to the exhaust hole through the first air permeable hole and the waterproof and breathable film, and then flow to the outside through the exhaust hole, so as to realize the effect of pressure relief and exhaust, avoid the failure of the connection between the container cover and the container body due to the excessive pressure in the container body, and prevent the liquid from splashing outwards when boiling, thereby avoiding scalding the user and avoiding water leakage of the liquid heating container. After heating, when the user needs to drink water, the container cover can be detached from the container body, and then the water is poured outwards. Since the lower cover and the upper cover are detachably connected, the user can take out the waterproof and breathable assembly in the containing cavity by detaching the lower cover, so as to clean the waterproof and breathable film and avoid the failure of the waterproof and breathable film due to blockage by impurities. In addition, the inner wall of the containing cavity can be cleaned to remove impurities or scale and other dirt attached to the inner wall of the containing cavity, which facilitates the user to clean the inside of the container cover, reduces the cleaning dead angle of the container cover, and is helpful to improve the user's experience. The pushing part can facilitate the user to detach and assemble the lower cover. The user can hold the pushing part with fingers to move the lower cover relative to the upper cover, thereby more labor-savingly detaching or assembling the lower cover. In addition, the user can also hold the pushing part to take or move the lower cover, which is convenient for the user to grasp.

[0007] In a possible design, the lower cover is provided with a plurality of pushing parts, and the plurality of pushing parts are distributed at intervals around the circumference of the first air permeable hole.

[0008] In the above scheme, the first air permeable hole is arranged at the middle part of the lower cover, and the plurality of pushing parts are distributed around the outer periphery of the first air permeable hole. Such a layout is more convenient for the user to use and more labor-saving.

[0009] In a possible design, the height of the pushing part gradually decreases in the direction of the center of the lower cover along the radial direction of the lower cover.

[0010] In the above scheme, the pushing part has a structure of high on the outside and low on the inside as a whole. The user mainly contacts the outside of the pushing part during use, which is more convenient to force, so that such a structure of high on the outside and low on the inside can reduce the material usage of the pushing part without affecting the user's use, thereby being helpful to reduce the overall weight and manufacturing cost of the lower cover.

[0011] In a possible design, the outer side wall of the lower cover is provided with a plurality of concave surfaces and a plurality of convex surfaces; and the plurality of concave surfaces and the plurality of convex surfaces are staggered distributed along the circumference of the lower cover.

[0012] In the above scheme, the plurality of concave surfaces and the plurality of convex surfaces are staggered distributed along the circumference of the lower cover, so that the outer side wall of the lower cover forms a rough structure with concave-convex. In this way, the friction of the outer surface of the lower cover can be increased, and the user can easily grasp the lower cover.

[0013] In a possible design, the upper cover comprises a fixedly connected inner cover and an outer cover, the inner cover is detachably connected with the container body, and the lower cover is detachably connected with the inner cover; and the exhaust hole is arranged on the outer cover.

[0014] In the above scheme, at least part of the side wall of the inner cover extends into the container body to be detachably connected with the container body, which is beneficial to improve the installation stability of the container cover, and the outer cover is buckled on the outer side of the container body, which can play a certain water leakage prevention role.

[0015] In a possible design, the inner cover is provided with an extension part extending along the axial direction of the container cover, the lower cover is detachably connected with the extension part, and the extension part, the outer cover and the lower cover enclose the accommodation cavity.

[0016] In the above scheme, the extension part is used for detachable connection with the lower cover to realize the disassembly and assembly of the upper cover and the lower cover, and is used for enclosing the accommodation cavity together with the outer cover and the lower cover and serving as a side wall of the accommodation cavity to limit the movement of the internal waterproof and breathable assembly in the radial direction of the container cover.

[0017] In a possible design, the waterproof and breathable assembly further comprises a pressing plate movably mounted in the accommodation cavity and having an exhaust passage between the extension part in the radial direction of the container cover, the exhaust passage is in communication with the exhaust hole, the pressing plate is provided with a second breathable hole in communication with the exhaust hole, the waterproof and breathable film is fixed to the pressing plate and covers the second breathable hole, the lower cover is further provided with a first sealing ring, the pressing plate is used for moving away from the first sealing ring when the gas pressure in the container body is greater than a preset value to make the first breathable hole in communication with the exhaust passage, and the pressing plate is further used for pressing the waterproof and breathable film against the first sealing ring when the gas pressure in the container body is less than or equal to the preset value to cut off the communication between the first breathable hole and the exhaust passage.

[0018] In the above scheme, when the gas pressure in the container body is greater than the preset value, the pressing plate can move upward under the action of the gas pressure, at this time, there is a gap between the pressing plate and the sealing ring, the first air hole can be connected with the exhaust passage, the steam in the container body can flow to the exhaust hole through the first air hole and the exhaust passage, and then flow to the outside through the exhaust hole. That is, the pressing plate can connect the first air hole and the exhaust passage when the waterproof and breathable film is blocked and fails to cause the gas pressure in the container body to be too large, so as to play a role in exhaust pressure relief, thereby reducing the internal pressure of the container body and improving the use safety of the liquid heating container. Of course, when the waterproof and breathable film is not failed but the gas pressure in the container body is too large, the pressing plate can also connect the first air hole and the exhaust passage to assist the waterproof and breathable film to play a role in exhaust pressure relief, thereby improving the safety of the container cover. When the gas pressure in the container body is less than or equal to the preset value, the gas pressure in the container body is not enough to drive the pressing plate to move upward, and the pressing plate is used to press the waterproof and breathable film against the first sealing ring, at this time, the connection between the first air hole and the exhaust passage is cut off to prevent the liquid in the container body from flowing to the exhaust hole through the exhaust passage, that is, the pressing plate can cooperate with the first sealing ring to ensure that the container cover exhausts through only the first air hole, the waterproof and breathable film and the exhaust hole, so as to ensure the sealing performance and the water leakage prevention performance of the container cover.

[0019] In a possible design, at least one of the inner side wall, the outer side wall, the upper end face and the lower end face of the first sealing ring is provided with a sealing rib.

[0020] In the above scheme, when the inner side wall of the first sealing ring is provided with a sealing rib, the steam or liquid can be prevented from flowing outward through the gap between the second limiting portion and the first sealing ring; when the outer side wall of the first sealing ring is provided with a sealing rib, the steam or liquid can be prevented from flowing outward through the gap between the first sealing ring and the side wall of the lower cover; when the upper end face of the first sealing ring is provided with a sealing rib, the steam or liquid can be prevented from flowing to the exhaust passage through the gap between the waterproof and breathable film and the first sealing ring when the gas pressure in the container body is less than or equal to the preset value; and when the lower end face of the first sealing ring is provided with a sealing rib, the steam or liquid can be prevented from flowing outward through the gap between the first sealing ring and the bottom wall of the lower cover, so as to improve the sealing performance of the container cover.

[0021] In a possible design, the waterproof and breathable assembly further includes a return spring, and the two ends of the return spring are respectively in abutment with the outer cover and the pressing plate.

[0022] In the above scheme, when the pressing plate moves upward under the action of the gas pressure, the return spring can be compressed, and when the gas pressure decreases, the pressing plate can move downward under the action of the restoring force of the return spring. Moreover, when the gas pressure in the container body is less than or equal to the preset value, the return spring can exert a certain pressure on the pressing plate, so as to ensure that the pressing plate can press the waterproof and breathable film against the first sealing ring.

[0023] In a possible design, an inner side wall of the extension is provided with a first limiting part which is protruded in the radial direction of the extension to limit the movement of the return spring in the radial direction of the extension.

[0024] In the above solution, the first limiting part is used to limit the movement of the return spring in the radial direction of the extension, thereby facilitating to improve the stability of the return spring during movement and preventing the return spring from deviating.

[0025] It should be understood that the foregoing general description and the following detailed description are only exemplary and are not limiting to the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A cross-sectional structure schematic diagram of the liquid heating container provided in the present application;

[0027] Figure 2 A cross-sectional structure schematic diagram of the container cover in Figure 1 ;

[0028] Figure 3 An exploded view of the container cover in Figure 2 ;

[0029] Figure 4 A structure schematic diagram of the lower cover in Figure 3 ;

[0030] Figure 5 A structure schematic diagram of the lower cover in Figure 4 from another perspective;

[0031] Figure 6 An enlarged view of part A in Figure 2 ;

[0032] Reference signs;

[0033] 10 - container body;

[0034] 101 - outer shell;

[0035] 102 - base;

[0036] 103 - inner container;

[0037] 104 - heating disc assembly;

[0038] 105 - circuit board assembly;

[0039] 20 - container cover;

[0040] 1 - upper cover;

[0041] 11 - exhaust hole;

[0042] 12 - inner cover;

[0043] 121 - extension;

[0044] 121a - limiting portion;

[0045] 122 - connecting portion;

[0046] 13 - outer cover;

[0047] 2 - lower cover;

[0048] 21 - first air vent hole;

[0049] 22 - pushing portion;

[0050] 23 - concave surface;

[0051] 24 - convex surface;

[0052] 3 - accommodating cavity;

[0053] 4 - waterproof and air-permeable assembly;

[0054] 41 - waterproof and air-permeable film;

[0055] 42 - pressing plate;

[0056] 421 - second air vent hole;

[0057] 422 - second limiting portion;

[0058] 423 - limiting groove;

[0059] 424 - air exhaust passage;

[0060] 43 - return spring;

[0061] 5 - first sealing ring;

[0062] 51 - sealing rib;

[0063] 6 - second sealing ring;

[0064] 7 - third sealing ring;

[0065] 8 - fourth sealing ring.

[0066] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application. DETAILED DESCRIPTION

[0067] In order to better understand the technical solutions of the present application, the embodiments of the present application will be described in detail below in conjunction with the drawings.

[0068] It should be noted that the described embodiments are merely some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0069] The terms used in the embodiments of the present application are merely for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0070] It should be understood that the term "and / or" used herein is merely to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0071] It should be noted that the "up", "down", "left", "right" and other directional words described in the embodiments of the present application are described from the angle shown in the drawings, and should not be understood as a limitation on the embodiments of the present application. In addition, in the context, it should also be understood that when referring to an element connected to another element "on" or "under", it can not only be directly connected to another element "on" or "under", but also indirectly connected to another element "on" or "under" through an intermediate element.

[0072] The embodiments of the present application provide a liquid heating container, as shown in the drawings, which comprises a detachably connected container body 10 and a container cover 20. The container body 10 comprises a fixedly connected shell 101 and a base 102, the shell 101 is provided with an inner container 103 for containing liquid and a heating disc assembly 104 mounted on the outer bottom wall of the inner container 103 for heating the liquid. The base 102 is provided with a circuit board assembly 105, which is electrically connected with the heating disc assembly 104, for controlling the heating temperature or heating time of the liquid heating container. As shown in the drawings, Figure 1 Figure 2 and Figure 3 ​As shown, the container lid 20 includes a detachably connected upper lid 1 and lower lid 2, which together form a receiving cavity 3. The top of the upper lid 1 is provided with an exhaust port 11 communicating with the outside, and the bottom wall of the lower lid 2 is provided with a first vent 21. One end of the first vent 21 communicates with the inner liner 103 of the container body 10, and the other end communicates with the receiving cavity 3. A waterproof and breathable component 4 is detachably installed in the receiving cavity 3. The waterproof and breathable component 4 includes a waterproof and breathable membrane 41, which has both breathability and waterproof properties. When the liquid heating container heats the liquid, the container lid 20 is fastened to the container body 10. The steam generated by the liquid heating can flow through the first vent 21 and the waterproof and breathable membrane 41 to the vent 11, and then flow to the outside through the vent 11, thus achieving the effect of pressure relief and venting. This prevents excessive pressure inside the container body 10 from causing the connection between the container lid 20 and the container body 10 to fail. It also prevents the liquid from splashing out when boiling, thus avoiding scalding the user and preventing the liquid heating container from leaking. After heating is complete, when the user needs to drink water, the container lid 20 can be removed from the container body 10, and then the water can be poured out.

[0073] Since the lower cover 2 and the upper cover 1 are detachably connected, the user can remove the waterproof and breathable component 4 inside the receiving cavity 3 for cleaning by removing the lower cover 2. This prevents the waterproof and breathable membrane 41 from failing due to blockage by impurities. The user can also clean the inner wall of the receiving cavity 3 to remove impurities or scale and other dirt, making it easier for the user to clean the inside of the container cover 20, reducing cleaning dead corners of the container cover 20, and improving the user experience.

[0074] In this embodiment, the upper cover 1 and the lower cover 2 can be detachably connected by threaded engagement or snap-fit ​​engagement, or by other engagement methods. This embodiment does not limit this.

[0075] like Figure 4 As shown, a pushing part 22 is provided on the outer bottom wall of the lower cover 2. The pushing part 22 protrudes along the axial direction Z of the lower cover 2 in a direction away from the upper cover 1, making it convenient for users to install and remove the lower cover 2. When the lower cover 2 and the upper cover 1 are connected by a threaded engagement, the user can pinch the pushing part 22 with their fingers to rotate the lower cover 2 relative to the upper cover 1, thus making it easier to remove or install the lower cover 2. This is especially convenient when the diameter of the lower cover 2 is large and it is difficult for the user to hold it with one hand to rotate it. Similarly, when the lower cover 2 and the upper cover 1 are connected by a snap-fit ​​engagement, the user can also pinch the pushing part 22 with their fingers to move the lower cover 2 up and down relative to the upper cover 1, which also makes it easier to remove or install the lower cover 2. In addition, the user can also pick up or move the lower cover 2 by pinching the pushing part 22, making it easier for the user to grip.

[0076] Specifically, as shown in Figure 4 The lower cover 2 can be provided with a plurality of push portions 22 spaced apart around the circumference of the first air hole 21, i.e. the first air hole 21 is arranged at the middle of the lower cover 2, and the plurality of push portions 22 are arranged around the outer periphery of the first air hole 21. Such a layout is more convenient for users to use and more labor-saving.

[0077] The first air hole 21 can be a single hole with a large diameter or a plurality of holes with small diameters combined, and the present embodiment does not limit this.

[0078] In a specific embodiment, as shown in Figure 4 The height of the push portion 22 gradually decreases in the direction of the center of the lower cover 2 along the radial direction X of the lower cover 2, i.e. the push portion 22 has a structure of being high on the outside and low on the inside. When in use, the user mainly contacts the outside of the push portion 22, which is more convenient for exerting force, so such a structure of being high on the outside and low on the inside can reduce the amount of material of the push portion 22 without affecting the use of the user, thereby facilitating the reduction of the overall weight and manufacturing cost of the lower cover 2.

[0079] In a specific embodiment, as shown in Figure 4 and Figure 5 The outer side wall of the lower cover 2 is provided with a plurality of concave surfaces 23 and a plurality of convex surfaces 24, and the plurality of concave surfaces 23 and the plurality of convex surfaces 24 are staggered along the circumference of the lower cover 2, so that the outer side wall of the lower cover 2 forms a rough structure with concave and convex surfaces, which can increase the friction of the outer surface of the lower cover 2 and facilitate the user to hold the lower cover 2.

[0080] In a specific embodiment, as shown in Figure 2 The upper cover 1 includes a fixedly connected inner cover 12 and an outer cover 13, and at least part of the side wall of the inner cover 12 extends into the container body 10 to be detachably connected with the container body 10, which facilitates the installation stability of the container cover 20. Specifically, the inner cover 12 can be snap-fitted or threaded with the inner side wall of the container body 10. The inner cover 12 and the outer cover 13 can be fixedly connected by bolts or welded. The outer cover 13 is buckled to the outer side of the container body 10 and can play a certain water leakage prevention role, and the air vent 11 is arranged at the top of the outer cover 13.

[0081] In addition, a second sealing ring 6 is arranged between the outer cover 13 and the container body 10 to prevent the liquid or vapor in the container body 10 from flowing to the outside from between the outer cover 13 and the container body 10, thereby improving the sealing performance of the liquid heating container.

[0082] The inner cover 12 is further provided with an extension portion 121 and a connecting portion 122, as shown in Figure 2As shown, the extension 121 is located in the middle portion of the inner cover 12 and extends along the axial direction Z of the container cover 20, for detachable connection with the lower cover 2 to achieve detachable connection of the upper cover 1 and the lower cover 2. The extension 121 is also used to jointly form the accommodation cavity 3 with the outer cover 13 and the lower cover 2, and serves as a side wall of the accommodation cavity 3 to limit the movement of the internal waterproof and breathable assembly 4 in the radial direction X of the container cover 20. The connecting portion 122 is arranged around the extension 121 in the circumferential direction, and the connecting portion 122 is in a flat plate structure, and the two ends of the connecting portion 122 in the radial direction X of the container cover 20 are fixedly connected with the extension 121 and the side wall of the inner cover 12, respectively, to improve the structural strength and stability of the extension 121.

[0083] In addition, as shown, Figure 2 The extension 121 and the outer cover 13 are further provided with a third sealing ring 7, and the side wall of the inner cover 12 and the outer cover 13 are further provided with a fourth sealing ring 8, to improve the sealing effect between the outer cover 13 and the inner cover 12.

[0084] In a specific embodiment, the waterproof and breathable assembly 4 further includes a pressing plate 42 which is movable up and down in the accommodation cavity 3. The pressing plate 42 is provided with a second breathable hole 421 which is in communication with the exhaust hole 11, and the waterproof and breathable film 41 is fixedly attached to the pressing plate 42 and covers the second breathable hole 421, so that the vapor in the container body 10 can flow to the exhaust hole 11 through the first breathable hole 21, the waterproof and breathable film 41 and the second breathable hole 421. In combination with Figure 6 As shown, between the pressing plate 42 and the extension 121 in the radial direction X of the container cover 20, there is a gap which can form an exhaust passage 424 which is in communication with the exhaust hole 11. The lower cover 2 is further provided with a first sealing ring 5, and when the gas pressure in the container body 10 is greater than a preset value, the pressing plate 42 can move upward under the action of the gas pressure, at which time there is a gap between the pressing plate 42 and the sealing ring 5, the first breathable hole 21 can be in communication with the exhaust passage 424, and the vapor in the container body 10 can flow to the exhaust hole 11 through the first breathable hole 21 and the exhaust passage 424, and then to the outside through the exhaust hole 11. That is, the pressing plate 42 can connect the first breathable hole 21 and the exhaust passage 424 when the waterproof and breathable film 41 fails due to blockage, so as to play a role in exhausting and relieving pressure, thereby reducing the internal pressure of the container body 10 and improving the safety of the liquid heating container. Of course, when the waterproof and breathable film 41 is not failed but the gas pressure in the container body 10 is too large, the pressing plate 42 can also connect the first breathable hole 21 and the exhaust passage 424 to assist the waterproof and breathable film 41 in exhausting and relieving pressure, thereby improving the safety of the container cover 20.

[0085] When the gas pressure in the container body 10 is less than or equal to the preset value, the gas pressure in the container body 10 is insufficient to drive the pressing plate 42 to move upward, and the pressing plate 42 is used to press the waterproof and breathable film 41 against the first sealing ring 5. At this time, the communication between the first breathable hole 21 and the exhaust passage 424 is cut off to prevent the liquid in the container body 10 from flowing to the exhaust hole 11 through the exhaust passage 424, that is, the pressing plate 42 can cooperate with the first sealing ring 5 to ensure that the container cover 20 is only exhausted through the first breathable hole 21, the waterproof and breathable film 41 and the exhaust hole 11, so as to ensure the sealing performance and the water leakage prevention performance of the container cover 20.

[0086] It should be noted that the preset value of the gas pressure refers to the safe pressure value of the liquid heating container during use, and the preset value can be adjusted as needed, and the specific size of the preset value is not limited in the embodiment.

[0087] As shown in Figure 2 , the inside of the pressing plate 42 can be provided with a second limiting portion 422, which can cooperate with the side wall of the lower cover 2 to limit the movement of the first sealing ring 5 in the radial direction X of the container cover 20, thereby improving the installation stability of the first sealing ring 5.

[0088] In a specific embodiment, as shown in Figure 2 , at least one of the inner side wall, the outer side wall, the upper end face and the lower end face of the first sealing ring 5 is provided with a sealing rib 51 to improve the sealing performance of the container cover 20. Specifically, when the inner side wall of the first sealing ring 5 is provided with the sealing rib 51, the sealing rib 51 can abut against the second limiting portion 422 to prevent the steam or liquid from flowing outward through the gap between the second limiting portion 422 and the first sealing ring 5. When the outer side wall of the first sealing ring 5 is provided with the sealing rib 51, the sealing rib 51 can abut against the side wall of the lower cover 2 to prevent the steam or liquid from flowing outward through the gap between the first sealing ring 5 and the side wall of the lower cover 2. When the upper end face of the first sealing ring 5 is provided with the sealing rib 51, the sealing rib 51 can abut against the waterproof and breathable film 41 when the gas pressure in the container body 10 is less than or equal to the preset value to prevent the steam or liquid from flowing to the exhaust passage 424 through the gap between the waterproof and breathable film 41 and the first sealing ring 5. When the lower end face of the first sealing ring 5 is provided with the sealing rib 51, the sealing rib 51 can abut against the bottom wall of the lower cover 2 to prevent the steam or liquid from flowing outward through the gap between the first sealing ring 5 and the bottom wall of the lower cover 2.

[0089] In one specific embodiment, the waterproof and breathable component 4 further includes a return spring 43. The two ends of the return spring 43 abut against the outer cover 13 and the pressure plate 42, respectively. When the pressure plate 42 moves upward under gas pressure, it compresses the return spring 43. When the gas pressure decreases, the pressure plate 42 can move downward and reset under the restoring force of the return spring 43. Furthermore, when the gas pressure inside the container 10 is less than or equal to a preset value, the return spring 43 can apply a certain pressure to the pressure plate 42, thereby ensuring that the pressure plate 42 can press the waterproof and breathable membrane 41 tightly against the first sealing ring 5.

[0090] In this embodiment, the preset value of gas pressure can be adjusted by replacing the reset spring 43 of different specifications or the pressure plate 42 of different shapes.

[0091] The pressure plate 42 can be provided with a limiting groove 423, and the return spring 43 can be installed in the limiting groove 423 to limit the movement of the return spring 423 in the radial X direction of the container cover 20, thereby improving the installation stability of the return spring 43.

[0092] like Figure 2 As shown, a first limiting portion 121a may also be provided on the inner sidewall of the extension 121. The first limiting portion 121a protrudes along the radial direction X of the extension 121 to restrict the movement of the return spring 43 in the radial direction X of the extension 121, thereby improving the stability of the return spring 43 during movement and preventing the return spring 43 from deviating. Specifically, multiple first limiting portions 121a may be provided at intervals in the circumferential direction of the extension 121.

[0093] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A liquid heating vessel characterised in that, The container cover (20) is buckled on the container body (10) and comprises detachably connected upper cover (1) and lower cover (2), the upper cover (1) and the lower cover (2) form a containing cavity (3), the upper cover (1) is provided with an exhaust hole (11) communicated with the outside, and the lower cover (2) is provided with a first air hole (21). A waterproof and breathable assembly (4) is detachably installed in the containing cavity (3), the waterproof and breathable assembly (4) comprises a waterproof and breathable film (41), and the steam in the container body (10) can flow to the exhaust hole (11) through the first air hole (21) and the waterproof and breathable film (41). The outer bottom wall of the lower cover (2) is provided with a pushing part (22), and the pushing part (22) is protruded in the direction away from the upper cover (1) along the axial direction of the lower cover (2). The lower cover (2) is provided with a plurality of pushing parts (22), and the plurality of pushing parts (22) are distributed along the circumferential direction of the first air hole (21). The height of the pushing part (22) gradually decreases in the direction towards the center of the lower cover (2) along the radial direction of the lower cover (2).

2. The liquid heating vessel of claim 1, wherein, The outer side wall of the lower cover (2) is provided with a plurality of concave surfaces (23) and a plurality of convex surfaces (24).

3. The liquid heating vessel of claim 1, wherein, The plurality of concave surfaces (23) and the plurality of convex surfaces (24) are staggered distributed along the circumferential direction of the lower cover (2).

4. The liquid heating vessel of claim 1, wherein, The upper cover (1) comprises a fixedly connected inner cover (12) and an outer cover (13), the inner cover (12) is detachably connected with the container body (10), and the lower cover (2) is detachably connected with the inner cover (12). The exhaust hole (11) is arranged on the outer cover (13).

5. The liquid heating vessel of claim 1, wherein, The inner cover (12) is provided with an extension part (121) extending along the axial direction of the container cover (20), and the lower cover (2) is detachably connected with the extension part (121). The extension part (121), the outer cover (13) and the lower cover (2) form the containing cavity (3).

6. The liquid heating vessel of claim 5, wherein, The waterproof and breathable assembly (4) further comprises a pressing plate (42) movably installed in the containing cavity (3), and the pressing plate (42) and the extension part (121) are provided with an exhaust passage (424) in the radial direction of the container cover (20), the exhaust passage (424) is communicated with the exhaust hole (11). The pressing plate (42) is provided with a second air hole (421) communicated with the exhaust hole (11), the waterproof and breathable film (41) is fixed on the pressing plate (42) and covers the second air hole (421).

7. The liquid heating vessel of claim 6, wherein, The lower cover (2) is further provided with a first sealing ring (5), and the pressing plate (42) is used for moving away from the first sealing ring (5) when the gas pressure in the container body (10) is greater than a preset value, so that the first air hole (21) is communicated with the exhaust passage (424). ​ ​ The pressing plate (42) is also used for pressing the waterproof and breathable membrane (41) against the first sealing ring (5) to cut off the communication between the first breathable hole (21) and the exhaust passage (424) when the gas pressure in the container body (10) is less than or equal to a preset value.

8. The liquid heating vessel of claim 7, wherein, At least one of the inner side wall, the outer side wall, the upper end face and the lower end face of the first sealing ring (5) is provided with a sealing rib (51).

9. The liquid heating vessel of claim 7, wherein, The waterproof and breathable assembly (4) further comprises a reset spring (43), and two ends of the reset spring (43) are respectively in abutment with the outer cover (13) and the pressing plate (42).

10. The liquid heating vessel of claim 9, wherein, The inner side wall of the extension (121) is provided with a first limiting portion (121a) which protrudes in the radial direction of the extension (121) to limit the movement of the reset spring (43) in the radial direction of the extension (121).

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