Dustproof kettle

Abstract

The embodiment of the utility model provides a dustproof kettle which comprises a kettle body, a kettle cover and a cover plate. The dustproof cover is rotatably connected with the kettle body through a rotating shaft, and the dustproof cover can cover the spout and can open the spout when the kettle body inclines so as to pour water conveniently; the dustproof cover comprises a cover body and a balance weight part, the cover body can cover the spout, and the balance weight part is detachably connected with the cover body. According to the dustproof kettle, the balance weight part is arranged on the dustproof cover, the gravity center of the dustproof cover can be adjusted by adjusting the balance weight part, the balance weight part is detachably connected with the cover body, the assembling procedure between the balance weight part and the cover body can be simplified, machining and production are facilitated, the balance weight part can be detached for cleaning, and the service life of the dustproof kettle is prolonged. And product cleaning is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of cooking utensils, and in particular to a dustproof kettle. Background Art

[0002] The spouts of electric kettles on the market are mostly open, which makes it easy for dust, insects, etc. to enter through the spout, affecting the user experience. In order to prevent dust and insects from entering the kettle body, some products have dust covers on the spouts. However, the dust covers in the related art use the impact of the water flow to open a gap, and the water flows out from the gap between the dust cover and the spout. During the water discharge process, the dust cover affects the water flow, which will cause the water flow to be unconcentrated, resulting in a poor user experience. In addition, there are also some products that require manual opening of the dust cover before pouring water. This method of pouring water is inconvenient, and directly touching the dust cover with your hands can easily contaminate the spout. Utility Model Content

[0003] This application aims to solve at least one of the technical problems existing in the above-mentioned prior art or related technology.

[0004] To this end, the first aspect of the present invention provides a dustproof kettle, comprising: a kettle body, the kettle body including a spout; a dustproof cover, rotatably connected to the kettle body via a rotating shaft, the dustproof cover can cover the spout, and can open the spout when the kettle body is tilted to facilitate pouring water; the dustproof cover includes a cover body and a counterweight part, the cover body can cover the spout, and the counterweight part is detachably connected to the cover body.

[0005] The dustproof kettle proposed in the embodiment of this aspect has a dustproof cover rotatably connected to the kettle body through a rotating shaft. The dustproof cover can open the spout when the kettle body is tilted to facilitate pouring water; when the dustproof kettle is in an upright state, the dustproof cover can cover the spout to prevent dust from entering the spout. The dustproof cover can also reduce the dissipation of heat in the kettle body, which can increase the heating speed when boiling water and heat it to a specified temperature more quickly. After the boiling is completed, the cooling speed of the kettle body can also be reduced, and the heat preservation performance is better; further, a counterweight portion is provided on the dustproof cover, and the counterweight portion can be adjusted by adjusting the counterweight portion. The center of gravity of the entire dust cover, it can be understood that in order to achieve a better balancing effect, the counterweight part and the cover body are generally made of different materials, and the specific gravity of the counterweight part is greater than the specific gravity of the cover body. If the counterweight part and the cover body are designed to be an integrated structure or a welded structure, the process is relatively complicated and there are many steps in the processing and production. The embodiment of this aspect provides a counterweight part that is detachably connected to the cover body, which can simplify the assembly process between the counterweight part and the cover body, is beneficial to processing and production, and the counterweight part can also be disassembled for cleaning, which is beneficial to the cleaning of the product.

[0006] In some embodiments, the cover body includes a cover plate and a connecting base connected to the cover plate. The connecting base is provided with a receiving slot having an opening, and the counterweight portion can be installed into or removed from the receiving slot through the opening. In these embodiments, the connection base is provided to provide installation space for the counterweight portion. The connecting base is provided with a receiving slot having an opening. During assembly, the counterweight portion can be pushed into the receiving slot through the opening, which facilitates operation and simplifies assembly.

[0007] In some embodiments, the connecting seat is arranged adjacent to the kettle body, and a notch is provided on a side of the accommodating groove facing the kettle body, and the counterweight part can be adjacent to the kettle body via the notch.

[0008] In these embodiments, the connecting seat is arranged adjacent to the kettle body, and a notch is provided on the side of the accommodating groove facing the kettle body, and the counterweight part can be adjacent to the kettle body through the notch. That is, the connecting seat can install the counterweight part without affecting the counterweight part's proximity to the kettle body, and there is no need to set a connecting structure between the counterweight part and the kettle body due to the need to install the counterweight part, so that the counterweight part is closer to the kettle body, and the center of gravity of the counterweight part is also offset to one side of the kettle body, thereby achieving the purpose of making the center of gravity of the dust cover closer to the vertical line passing through the center of the rotating shaft through the counterweight part of the same weight and size, which is beneficial for the dust cover to automatically open as soon as possible during the process of tilting the kettle body to pour water.

[0009] In some embodiments, when the dust cover covers the spout, the gap between the counterweight and the kettle body is greater than or equal to 0 mm and less than or equal to 2 mm. Within this range, the counterweight is as close to the kettle body as possible, thereby making the center of gravity of the dust cover as close to the kettle body as possible, thereby facilitating the dust cover to automatically open as soon as possible.

[0010] In some embodiments, the connecting seat includes a support plate and a claw. The claw is arranged at the end of the support plate extending along the circumferential direction of the kettle body. The claw can cover the edge of the counterweight part. The claw and the support plate are combined to form a receiving groove.

[0011] In these embodiments, the connecting seat includes a support plate and claws located at both ends of the support plate. The cross-sectional shape of the connecting seat is generally C-shaped. The claws are arranged at the end of the support plate extending along the circumferential direction of the kettle body, so that the claws can be arranged in the gap space between the circular kettle body and the counterweight part, making full use of the gap space, thereby ensuring that the counterweight part can be located as close to the kettle body as possible. At the same time, the two ends of the counterweight part can be covered by the C-shaped structure, so that the counterweight part and the dust cover can be reliably and effectively connected, ensuring the excellent performance of the dust cover in automatically opening, and ensuring the reliability of the structure.

[0012] In some embodiments, the connector further includes a base bracket, disposed below and connected to the support plate. The base bracket supports the counterweight and includes a hollowed-out area. This configuration ensures that the counterweight, which is subject to gravity and tends to fall downward during use, provides reliable upward support, ensuring stable operation in hot and cold conditions, or at various angles. Furthermore, the hollowed-out area allows condensed water in the connector to drain quickly through the hollowed-out area, preventing water from accumulating in the connector.

[0013] In some embodiments, one of the connecting base and the counterweight is provided with a protruding buckle, while the other is provided with a button hole that matches the buckle. The buckle engages with the button hole to connect the connecting base and the counterweight. With this arrangement, when the counterweight is pushed into the connecting base, the buckle and the button hole automatically engage, making assembly between the counterweight and the connecting base simple. Once installed, the connection is complete, eliminating the need for additional connection steps and significantly reducing assembly time.

[0014] In some embodiments, the buckle is a protrusion, and the edge of the protrusion and the connection between the protrusion and the surface on which it is located are arc-shaped.

[0015] In these embodiments, the counterweight is positioned by the engagement of the buckle and the buckle hole, and the connection between the buckle and the surface on which it is located is designed to be arc-shaped. This is to ensure that when the buckle and the buckle hole engage, the buckle hole can abut against the arc, so that the force at the contact position passes through the center of the arc and can be decomposed into horizontal and vertical forces. That is, the force can both support the counterweight in the vertical direction and clamp the counterweight in the horizontal direction, thereby forming a multi-dimensional fixation, ensuring that the counterweight will not shake left and right after assembly, thereby achieving consistency in the center of gravity of the cover body and the counterweight, ensuring the reliability of the dust cover's automatic opening for pouring water, and preventing the dust cover from being unstable and affecting the pouring quality. Furthermore, designing the edge of the protrusion into an arc shape can make assembly smoother.

[0016] In some embodiments, the radius of the arc is greater than or equal to 0.5 mm, so that the range of the arc is large enough to ensure that the contact point between the buckle and the buckle position falls within the range of the arc after assembly.

[0017] In some embodiments, the side of the connection base facing the kettle body is a concave surface that matches the outer surface of the kettle body. This configuration, in which the side of the connection base facing the kettle body is concave, allows the edge of the connection base to fit more closely toward the kettle body, thereby allowing it to be located in the gap between the circular kettle body and the counterweight, fully utilizing the gap. This ensures that the counterweight is positioned as close to the kettle body as possible, while also allowing the counterweight to be reliably and effectively connected to the dust cover, thereby ensuring the excellent automatic opening performance of the dust cover and the reliability of the structure.

[0018] In some embodiments, the upper portion of the kettle body is inclined toward the interior of the kettle body, and when the lid body is closed on the spout, the counterweight portion is inclined from the upper end to the lower end in a direction away from the kettle body. With this arrangement, due to the inclined structure of the upper portion of the kettle body, the upper portion of the counterweight portion is also inclined relative to the central axis of the kettle body toward the kettle body, making it more closely fitted to the kettle body, and increasing the lever arm from the center of gravity of the counterweight portion to the rotating shaft. Since torque is equal to the product of force and lever arm, increasing the lever arm while maintaining the same torque can reduce the weight of the counterweight portion. In this way, the same dust cover opening effect can be achieved with a smaller counterweight portion, ensuring that the dust cover can be automatically opened when pouring water, effectively preventing water from contacting the dust cover, and ensuring high-quality water flow.

[0019] In some embodiments, the rotating shaft is disposed in the spout, and the counterweight is located on the side of the rotating shaft facing the kettle body. Placing the rotating shaft in the accommodating cavity makes it less susceptible to external influences, and even when the lid or kettle body is opened, the rotating shaft will not come into contact with the rotating shaft, making it less susceptible to damage. This ensures the reliability of the automatic opening and closing function of the dust cover.

[0020] In some embodiments, a crossbeam is provided on the top of the spout, and two downwardly protruding mounting plates are provided on the bottom surface of the crossbeam, and the rotating shaft is provided on the mounting plates. In this arrangement, the two mounting plates spaced apart on the bottom surface of the crossbeam are used to connect to the connecting seat, which has a simple structure and is easy to process and produce. The mounting plates are equivalent to a cantilever structure. The rotating shaft or the support shaft hole that cooperates with the rotating shaft is provided on the mounting plates, which is also conducive to assembly with the connecting seat. In actual assembly, the connecting seat can be forcibly inserted between the two mounting plates, so that the two mounting plates form a small amount of deformation outward, thereby allowing the rotating shaft to enter the support shaft hole, facilitating the assembly of the rotating shaft and the support shaft hole. Furthermore, the mounting plates are provided on the bottom surface of the crossbeam, the rotating shaft or the support shaft hole is provided on the mounting plates, and the rotating shaft is installed in the support shaft hole. That is, the connecting seat, the rotating shaft and the support shaft hole are all located in the accommodating cavity formed by the kettle body, the spout and the lid body, and are not easily affected by the outside world. Even if the lid body and the kettle lid are opened, they will not contact the connecting seat, the rotating shaft and the rotating shaft position and other structures, thereby ensuring the reliability of the automatic opening and closing function of the dust cover.

[0021] Additional aspects and / or advantages of the present general inventive concept will be set forth in part in the following description, and some will be clear from the description or may be learned through practice of the present general inventive concept. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects and features of the present invention will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0023] Figure 1This is a schematic cross-sectional structure diagram of a dust-proof kettle along the longitudinal direction according to an embodiment of the present utility model;

[0024] Figure 2 is another schematic cross-sectional structure diagram of a dust-proof kettle along the longitudinal direction according to an embodiment of the present utility model;

[0025] Figure 3 This is a schematic cross-sectional structure diagram of a dust-proof kettle along a horizontal direction according to an embodiment of the present utility model;

[0026] Figure 4 This is an exploded view of a dustproof kettle according to one embodiment of the present invention;

[0027] Figure 5 This is a front view of a dustproof kettle according to an embodiment of the present utility model;

[0028] Figure 6 This is a schematic structural diagram of a dust cover according to an embodiment of the present utility model;

[0029] Figure 7 is another structural schematic diagram of a dust cover according to an embodiment of the present utility model;

[0030] Figure 8 1 is another structural schematic diagram of a dust cover according to an embodiment of the present utility model;

[0031] Figure 9 1 is another structural schematic diagram of a dust cover according to an embodiment of the present utility model;

[0032] Figure 10 1 is another structural schematic diagram of a dust cover according to an embodiment of the present utility model;

[0033] Figure 11 This is a structural schematic diagram of a dust cover in which the counterweight portion is separated from the connecting seat according to an embodiment of the present utility model;

[0034] Figure 12 This is a schematic cross-sectional view of the assembled counterweight portion and the connecting seat according to an embodiment of the present invention;

[0035] Figure 13 This is a schematic cross-sectional view of a connecting base according to an embodiment of the present invention;

[0036] Figure 14 This is a structural diagram of a cover body according to an embodiment of the present utility model;

[0037] Figure 15 is an exploded view of a dust cover according to an embodiment of the present invention;

[0038] Figure 16 This is a structural schematic diagram of a counterweight portion according to an embodiment of the present utility model;

[0039] Figure 17 is another structural schematic diagram of a counterweight portion according to an embodiment of the present utility model;

[0040] Figure 18 This is a schematic diagram of the forces after the cover body and the counterweight are assembled according to one embodiment of the present invention;

[0041] Figure 19 1 is a schematic cross-sectional structural diagram of a dust-proof kettle along a vertical direction according to another embodiment of the present invention;

[0042] Figure 20 is a partial enlarged schematic diagram of the spout of a dustproof kettle according to another embodiment of the present invention;

[0043] Figure 21 is a schematic structural diagram of a dust cover according to another embodiment of the present invention;

[0044] Figure 22 It is a schematic cross-sectional structural diagram of a dust cover according to another embodiment of the present invention.

[0045] Figures 1 to 22 Description of Figure Numbers:

[0046] 10 kettle body, 110 kettle spout, 111 beam, 112 mounting plate, 113 support shaft hole, 120 kettle body inner liner,

[0047] 20 dust cover, 201 center of gravity of dust cover, 210 cover body, 220 rotating shaft, 221 center of rotating shaft, 230 connecting seat, 231 notch, 232 supporting plate, 233 claw, 234 buckle hole, 235 opening, 236 bottom support, 240 counterweight, 242 buckle,

[0048] I: Dust cover balancing area, J: Dust cover covering the spout area. DETAILED DESCRIPTION

[0049] The following detailed description is provided to help the reader gain a comprehensive understanding of the methods, devices and / or systems described herein. However, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be clear after understanding the disclosure of the present application. For example, the order of operations described herein is merely an example and is not limited to those orders set forth herein, but can be changed as will be clear after understanding the disclosure of the present application, except for operations that must occur in a specific order. In addition, for greater clarity and conciseness, descriptions of features known in the art may be omitted.

[0050] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided to illustrate only some of the many possible ways to implement the methods, devices, and / or systems described herein, which will become clear after understanding the disclosure of this application.

[0051] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more.

[0052] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions should not be limited by these terms. Instead, these terms are used solely to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Thus, what is referred to as a first member, first component, first region, first layer, or first portion in the examples described herein may also be referred to as a second member, second component, second region, second layer, or second portion without departing from the teachings of the examples.

[0053] In the specification, when an element such as a layer, a region, or a substrate is described as being “on,” “connected to,” or “coupled to” another element, the element may be directly “on,” “connected to,” or “coupled to” the other element, or one or more other elements may be present therebetween. Conversely, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, no other elements may be present therebetween.

[0054] The terms used herein are only used to describe various examples and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprising," "including," and "having" indicate the presence of the described features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. The term "plurality" represents any number of two and more than two.

[0055] The definitions of directional terms such as "upper", "lower", "top" and "bottom" in this application are based on the directional definitions when the product is in normal use and placed upright.

[0056] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as those generally understood by those skilled in the art after understanding the present invention. Unless expressly defined otherwise herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present invention, and should not be interpreted in an idealized or overly formal manner.

[0057] Furthermore, in the description of examples, when it is deemed that a detailed description of well-known related structures or functions will cause an obscure interpretation of the present invention, such detailed description will be omitted.

[0058] The following will be combined Figures 1 to 22 The dustproof water bottle of some embodiments of the present application is described.

[0059] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the first aspect of the present invention provides a dustproof kettle, comprising: a kettle body 10, the kettle body 10 including a spout 110; a dustproof cover 20, which is rotatably connected to the kettle body 10 via a rotating shaft 220, the dustproof cover 20 can cover the spout 110, and can open the spout 110 when the kettle body 10 is tilted to facilitate pouring water; the dustproof cover 20 includes a cover body 210 and a counterweight 240, the cover body 210 can cover the spout 110, the counterweight 240 can be detachably connected to the cover body 210, and the counterweight 240 can adjust the position of the center of gravity 201 of the dustproof cover.

[0060] The dustproof kettle proposed in the embodiment of this aspect has a dustproof cover 20 rotatably connected to the kettle body 10 through a rotating shaft 220. The dustproof cover 20 can open the spout 110 when the kettle body 10 is tilted to facilitate pouring water; when the dustproof kettle is in an upright state, the dustproof cover 20 can cover the spout 110 to prevent dust from entering the spout 110. The dustproof cover 20 can also reduce the dissipation of heat in the kettle body 10, and can increase the heating speed when boiling water, and heat it to the specified temperature more quickly. After the boiling of water is completed, it can also reduce the cooling speed in the kettle body 10, and the thermal insulation performance is better.

[0061] Furthermore, a counterweight portion 240 is provided on the dust cover 20, and the center of gravity 201 of the dust cover can be adjusted by adjusting the counterweight portion 240. It can be understood that in order to achieve a better counterweight effect, the counterweight portion 240 and the cover body 210 are generally made of different materials, and the specific gravity of the counterweight portion 240 is greater than the specific gravity of the cover body 210. If the counterweight portion 240 and the cover body 210 are designed as an integrated structure or a welded structure, the process is relatively complicated and the processing and production steps are many. In this embodiment, the counterweight portion 240 is detachably connected to the cover body 210, which can simplify the assembly process between the counterweight portion 240 and the cover body 210, which is beneficial to processing and production. In addition, the counterweight portion 240 can also be disassembled for cleaning, which is beneficial to the cleaning of the product.

[0062] In some embodiments, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, the cover body 210 includes a cover plate and a connecting base 230 connected to the cover plate. The connecting base 230 is provided with a receiving groove having an opening 235. The counterweight 240 can be installed into or removed from the receiving groove through the opening 235. In these embodiments, the configuration of the connecting base 230 provides installation space for the counterweight 240. The connecting base 230 is provided with a receiving groove having an opening 235. During the assembly process, the counterweight 240 can be pushed into the receiving groove through the opening 235, which facilitates operation and simplifies assembly.

[0063] In some embodiments, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, the connecting seat 230 is arranged adjacent to the kettle body 10 , and a notch 231 is provided on the side of the accommodating groove facing the kettle body 10 , and the counterweight portion 240 can be adjacent to the kettle body 10 via the notch 231 .

[0064] In these embodiments, the connecting seat 230 is arranged adjacent to the kettle body 10, and a notch 231 is provided on the side of the accommodating groove facing the kettle body 10, and the counterweight part 240 can be adjacent to the kettle body 10 through the notch 231. That is, the connecting seat 230 does not affect the counterweight part 240 from being close to the kettle body 10 while installing the counterweight part 240, and there is no need to set a connecting structure between the counterweight part 240 and the kettle body 10 due to the need to install the counterweight part 240, so that the counterweight part 240 is closer to the kettle body 10, and the center of gravity of the counterweight part 240 is also offset to one side of the kettle body 10, thereby achieving the purpose of making the center of gravity 201 of the dust cover closer to the vertical line passing through the center 221 of the rotating shaft through the counterweight part 240 of the same weight and size, which is beneficial for the dust cover 20 to automatically open as soon as possible during the process of tilting the kettle body 10 to pour water.

[0065] The dustproof kettle proposed in this embodiment can solve the problems in the related art where the center of gravity 201 of the dustproof cover is set at an unreasonable position, requiring a large tilt angle to open the dustproof cover 20 during pouring, which is laborious and difficult to operate. Furthermore, the dustproof kettle needs to use a large and heavy counterweight 240 to adjust the center of gravity 201 of the dustproof cover to achieve a reasonable tilt angle for pouring water.

[0066] The principle of the setting position of the counterweight part 240 is analyzed as follows: Figure 2 As shown, to facilitate the following analysis, the perpendicular midline of the dust cover 20 about the rotation axis 220, when the kettle body 10 is normally placed vertically, is divided into two left and right regions. The portion closer to the kettle body 10 is called the dust cover balancing region I, and the portion farther from the kettle body 10 is called the dust cover obstructing spout region J. When pouring water, the kettle body 10 tilts toward the spout 110 relative to the vertical. The height h of the space inside the spout 110 that allows for smooth water flow is the distance from the lowest point of the dust cover balancing region I to the inner wall of the spout 110. The value of h is affected by the dimension X, which is the distance from the farthest end of the dust cover balancing region I to the center 221 of the rotation axis. For the same spout 110 structure, a larger value of X corresponds to a smaller value of h. To ensure water flow speed and convenient pouring, a larger h value is preferred. This requires limiting the value of X as much as possible to ensure a sufficient h value for fast pouring.

[0067] like Figure 6 As shown, when the kettle body 10 is placed normally, the center of gravity 201 of the dust cover is on the right side of the vertical line passing through the center 221 of the rotating shaft, forming an angle A°. Figure 7 As shown, when the kettle body 10 is tilted for pouring, the dust cover 20's center of gravity 201 has already shifted to the left of a vertical line passing through the center 221 of the rotating shaft before it begins to rotate automatically, forming an angle a°. Therefore, the clockwise rotation angle of the kettle body 10 from the time the kettle body 10 is normally placed to the time the dust cover 20 begins to rotate automatically is: P = A + a.

[0068] In order to enable the dust cover 20 to automatically open as soon as possible, the smaller the P value, the better. That is, if the a value remains unchanged, the smaller the angle A, the better. In other words, the closer the center of gravity 201 of the dust cover is to the vertical line passing through the center 221 of the rotating shaft, the better. At the same time, when the size of the spout 110 is fixed, the X value should be limited as much as possible to ensure a sufficient h value to meet the requirement of fast pouring. Since there is no extra space in the spout 110 to extend the counterweight 240 to reduce the angle A in order to ensure the h value, the present application tries to move the counterweight 240 in the balance area I of the dust cover as far to the left as possible. In other words, the closer the counterweight 240 is to the kettle body 10, the more conducive it is for the dust cover 20 to automatically open as soon as possible.

[0069] In some embodiments, when the dust cover 20 covers the spout 110, the gap between the counterweight 240 and the kettle body 10 is greater than or equal to 0 mm and less than or equal to 2 mm. Within this range, the counterweight 240 is as close to the kettle body 10 as possible, thereby making the center of gravity 201 of the dust cover as close to the kettle body 10 as possible, thereby facilitating the dust cover 20 to automatically open as soon as possible.

[0070] In some embodiments, as Figure 1 、 Figure 2 and Figure 3 As shown, the rotating shaft 220 is arranged in the spout 110, and the counterweight 240 is located on the side of the rotating shaft 220 facing the kettle body 10. The rotating shaft 220 is arranged in the accommodating cavity, which is not easily affected by the outside world. Even if the cover body 210 and the kettle lid are opened, the rotating shaft 220 will not be touched, and the rotating shaft 220 is not easily damaged, thereby ensuring the reliability of the automatic opening and closing function of the dust cover 20.

[0071] In some embodiments, the counterweight 240 and the cover body 210 are made of different materials, and the specific gravity of the counterweight 240 is greater than that of the cover body 210. This makes it easier to adjust the center of gravity of the dust cover 20 by adjusting the position of the counterweight 240.

[0072] In some embodiments, for example, the counterweight 240 can be a metal block, and the cover body 210 can be a plastic part. The specific gravity of the metal block is much greater than that of the plastic part, which makes it easier to adjust the center of gravity of the dust cover 20 by adjusting the position of the counterweight 240. Of course, the cover body 210 can also be made of metal sheets or other materials, which are not listed here.

[0073] In some embodiments, as Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13As shown, the connecting seat 230 includes a support plate 232 and a claw 233. The claw 233 is arranged at the end of the support plate 232 extending along the circumferential direction of the kettle body 10. The claw 233 and the support plate 232 are combined to form a receiving groove. The claw 233 can cover the edge of the counterweight part 240 and clamp the counterweight part 240 in the receiving groove.

[0074] In these embodiments, the connecting seat 230 includes a support plate 232 and claws 233 located at both ends of the support plate 232. The cross-sectional shape of the connecting seat 230 is generally C-shaped. The claws 233 are arranged at the end of the support plate 232 extending along the circumferential direction of the kettle body 10, so that the claws 233 can be arranged in the gap space between the circular kettle body 10 and the counterweight part 240, making full use of the gap space, thereby ensuring that the counterweight part 240 can be located as close to the kettle body 10 as possible. At the same time, the two ends of the counterweight part 240 can be covered by the C-shaped structure, so that the counterweight part 240 and the dust cover 20 can be reliably and effectively connected, ensuring the excellent performance of the dust cover 20 in automatically opening the lid, and ensuring the reliability of the structure.

[0075] In some embodiments, as Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, claws 233 are provided at both ends of the support plate 232 extending along the circumferential direction of the kettle body 10 , a gap 231 is formed between the two claws 233 , and the counterweight 240 is adjacent to the kettle body 10 via the gap 231 .

[0076] In some embodiments, the side of the connecting seat 230 facing the kettle body 10 is a concave surface that matches the outer surface of the kettle body 10. In this way, the side of the connecting seat 230 facing the kettle body 10 is set as a concave surface, so that the edge of the connecting seat 230 can be more closely fitted in the direction of the kettle body 10, and the claw 233 is set in the gap between the circular kettle body 10 and the counterweight part 240, making full use of the gap space, thereby ensuring that the counterweight part 240 can be located as close to the kettle body 10 as possible, while allowing the counterweight part 240 to be reliably and effectively connected to the dust cover 20, ensuring the excellent performance of the dust cover 20 in automatically opening, and ensuring the reliability of the structure. In some embodiments, such as Figure 14 、 Figure 15 and Figure 18As shown, the connection base 230 also includes a base 236, which is arranged below the support plate 232 and connected to the support plate 232. The base 236 can support the counterweight portion 240. With this arrangement, since the counterweight portion 240 is always subject to the force of gravity during use and has a tendency to fall downward, the base 236 can provide reliable upward support for the counterweight portion 240, ensuring stable and reliable use in hot and cold states, or at various angles. Furthermore, the base 236 is provided with a hollow area, which can allow condensed water in the connection base 230 to quickly flow out through the hollow area, preventing water from accumulating in the connection base 230.

[0077] In some embodiments, as an example, optionally, as Figure 14 、 Figure 15 and Figure 18 As shown, the bottom brackets 236 are distributed on both sides of the support plate 232 along the length direction, and the counterweight portion 240 is supported by both ends, so that the counterweight portion 240 is more stably stressed. Figure 18 F6 and F7 represent the supporting force of the bottom bracket 236 on the counterweight 240. The disconnected structure in the middle of the bottom bracket 236 forms a hollow area, through which condensed water can quickly flow out, thus making the structure of the bottom bracket 236 simple and conducive to processing and production.

[0078] Further, with regard to the specific structure of the connecting seat 230, in some embodiments, as an example, optionally, each claw 233 includes a first connecting plate and a second connecting plate connected to each other, the first connecting plate being connected to the end of the support plate 232 in the length direction and extending toward the kettle body 10, leaving space for the thickness of the counterweight portion 240, and the second connecting plate extending toward the center direction of the counterweight portion 240, as shown in FIG. Figure 12 and Figure 13 As shown, the cross-sectional shape of the connecting seat 230 is generally C-shaped, a gap 231 is formed between the two second connecting plates, and the second connecting plates of the two claws 233 are both located in the gap space between the circular kettle body 10 and the counterweight part 240, so that the gap 231 is as close to the kettle body 10 as possible, thereby ensuring that the counterweight part 240 can be located as close to the kettle body 10 as possible.

[0079] Of course, the present solution is not limited to this. It is understandable that those skilled in the art can design the claws 233 to be other structures that are arranged on the edge of the first connecting plate and can cover the edge of the counterweight part 240. The number of claws 233 can be one or more, and multiple claws 233 can be distributed at intervals along the length direction of the edge of the support plate 232. The specific circumstances in this regard will not be listed one by one here, but they all fall within the scope of protection of this solution without departing from the present design concept.

[0080] Furthermore, the first connecting plate and the second connecting plate are in the shape of long strips. The long strips of the first connecting plate and the second connecting plate have a large area and a large contact area with the counterweight part 240, so that the two ends of the counterweight part 240 can be reliably wrapped and connected by the C-shaped structure, which can further ensure that the counterweight part 240 and the dust cover 20 can be reliably and effectively connected, ensuring the excellent performance of the dust cover 20 in automatically opening, and ensuring the reliability of the structure.

[0081] In some embodiments, as Figure 6 、 Figure 7 、 Figure 8 and Figure 11 As shown, one of the connecting base 230 and the counterweight 240 is provided with a protruding buckle 242, and the other is provided with a buckle hole 234 that matches the buckle 242. The buckle 242 and the buckle hole 234 engage with each other to connect the connecting base 230 and the counterweight 240. With this arrangement, when the counterweight 240 is pushed into the connecting base 230, the buckle 242 and the buckle hole 234 engage with each other, making the assembly between the counterweight 240 and the connecting base 230 simple. Once they are in place, the connection between the two is completed without adding additional connection steps, which greatly saves assembly time.

[0082] Furthermore, in some embodiments, as an example, optionally, an opening 235 is provided on the top surface or bottom surface of the connecting seat 230 for the counterweight part 240 to be installed into the connecting seat 230. When the counterweight part 240 is pushed into the connecting seat 230 through the opening 235, the buckle 242 and the buckle hole 234 can be automatically buckled together, and assembly is simple.

[0083] Further, as an example, optionally, one of the buckle 242 and the buckle hole 234 is provided on the first connecting plate, and the other is provided on the side wall of the counterweight portion 240 .

[0084] In some embodiments, as Figure 15 、 Figure 16 、 Figure 17 and Figure 18 As shown, the buckle 242 is a protrusion, and the edge of the protrusion and the connection between the protrusion and the surface on which it is located are in an arc shape.

[0085] In these embodiments, the counterweight portion 240 is positioned by the cooperation of the buckle 242 and the buckle hole 234, and the connection between the buckle 242 and the surface on which it is located is designed to be in an arc shape, in order to ensure that when the buckle 242 cooperates with the buckle hole 234, the buckle hole 234 can abut against the arc, so that the force at the contact position passes through the center of the arc, and the force can be decomposed into horizontal force and vertical force, that is, the force can support the counterweight portion 240 in the vertical direction, and can also clamp the counterweight portion 240 in the horizontal direction, thereby forming a multi-dimensional fixation, ensuring that the counterweight portion 240 will not rock left and right after assembly, thereby achieving a stable position of the center of gravity 201 of the dust cover, ensuring the reliability of the dust cover 20 automatically opening when pouring water, and avoiding the dust cover 20 from being unstable and affecting the quality of pouring water. Furthermore, designing the edge of the protrusion in an arc shape can make the assembly smoother. Figure 17 As shown, Figure 17 RA is the arc radius of the connection between the bump and the surface on which it is located, and RB is the arc radius of the edge of the bump. The values ​​of RA and RB can be the same or different.

[0086] In some embodiments, the radius of the arc is greater than or equal to 0.5 mm, so that the range of the arc is large enough to ensure that the contact point between the buckle 242 and the buckle position falls within the range of the arc after assembly.

[0087] It is worth noting that the conventional buckle and buckle position are in plane contact, the force direction is vertically upward, and can only support the counterweight portion 240 upward, while the buckle hole and buckle position of this embodiment are in arc surface contact, such as Figure 17 As shown, the buckle 242 is composed of a curved surface with a fillet radius greater than 0.5 mm, and the buckle hole 234 can abut against the arc so that the force at the contact position passes through the center of the arc. Figure 18 As shown, the forces F4 and F5 of the contact surface between the buckle 242 and the buckle position are analyzed in the mating state. The force F4 can be decomposed into a horizontal force F41 and a vertical force F42. The force F5 can be decomposed into a horizontal force F51 and a vertical force F52. Compared with the planar contact between conventional buckles and buckles, the direction of the forces is more multidimensional, less susceptible to external forces, and more stable.

[0088] In order to further reduce the size of the counterweight portion 240, in some embodiments, as shown in FIG. Figure 19 、 Figure 20 、 Figure 21 and Figure 22As shown, the upper portion of the kettle body 10 is tilted toward the interior of the kettle body 10, resulting in an inclined structure with a smaller upper end and a larger lower end. When the lid body 210 is closed onto the spout 110, the counterweight 240 is tilted from the upper end to the lower end. This arrangement allows the upper portion of the counterweight 240 to be tilted relative to the central axis of the kettle body 10, conforming to the outer shape of the kettle body 10 and providing a closer fit. This allows the center of gravity of the counterweight 240 to be positioned as far away from the rotating shaft 220 as possible, increasing the lever arm from the center of gravity of the counterweight 240 to the rotating shaft 220. Since torque equals the product of force and lever arm, increasing the lever arm while maintaining the same torque can reduce the weight of the counterweight 240. This allows the dust cover 20 to be opened with a smaller counterweight 240, ensuring that the dust cover 20 automatically opens when pouring water, effectively preventing water from contacting the dust cover 20 and ensuring high-quality water flow.

[0089] In some embodiments, as Figure 20 and Figure 22 As shown, when the cover body 210 is closed on the spout 110, the angle B between the counterweight part 240 and the vertical direction is 0° to 45°, so as to be as far away from the rotating shaft 220 as possible to ensure the opening effect of the dust cover 20.

[0090] In some embodiments, as Figure 4 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 As shown, a support shaft hole 113 is provided on one of the side walls of the kettle body 10 and the connecting base 230, and a rotating shaft 220 is provided on the other side wall. The rotating shaft 220 can be an integral structure or a separate structure with the connecting base 230 or the kettle body 10 in which it is located. The rotating shaft 220 is rotatably disposed in the supporting shaft hole 113, so that the dust cover 20 is rotatably connected to the kettle body 10. In this arrangement, the rotating shaft 220 and the connecting base 230 or the kettle body 10 are an integral structure. The integral structure has good mechanical properties and can improve the connection strength between the rotating shaft 220 and the connecting base 230 or the kettle body 10. In addition, the rotating shaft 220 and the connecting base 230 or the kettle body 10 can be made into an integral body for mass production. In addition, the integrity of the dust cover 20 is improved, the number of parts is reduced, and the installation process is shortened. Furthermore, the cooperation between the rotating shaft 220 and the supporting shaft hole 113 can ensure the free rotation of the rotating shaft 220, and the structure is simple and easy to install.

[0091] Although Figure 4 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11The description is given in which the rotating shaft 220 is set on the connecting seat 230 and the support shaft hole 113 is set on the spout 110, but the present application is not limited to this. According to another aspect of the embodiment of the present application, the positions of the rotating shaft 220 and the support shaft hole 113 can be interchanged.

[0092] It can be understood that the rotating shaft 220 and the connecting seat 230 or the kettle body 10 on which it is located are an integrated structure, that is, when the rotating shaft 220 is set on the connecting seat 230, the rotating shaft 220 and the connecting seat 230 are an integrated structure; when the rotating shaft 220 is set on the kettle body 10, the rotating shaft 220 and the kettle body 10 are an integrated structure.

[0093] In some embodiments, a shaft receiving hole is provided on the connecting base 230, and a support shaft hole 113 is provided on the kettle body 10. The shaft 220 is inserted into the shaft receiving hole and the support shaft hole 113, so that the dust cover 20 is rotatably connected to the kettle body 10. In this arrangement, the shaft 220 is independently provided, the support shaft hole 113 is provided on the kettle body 10, and the shaft receiving hole is provided on the connecting base 230. The shaft 220 is sequentially inserted into the shaft receiving hole and the support shaft hole 113, which can ensure the free rotation of the shaft 220, and has a simple structure and is easy to install.

[0094] In some embodiments, as Figure 4 As shown, a crossbeam 111 is provided on the top of the spout 110, and two downwardly protruding mounting pieces 112 are provided on the bottom surface of the crossbeam 111. The rotating shaft 220 or the support shaft hole 113 is provided on the mounting pieces 112. In this arrangement, the two mounting pieces 112 spaced apart on the bottom surface of the crossbeam 111 and the rotating shaft 220 or the support shaft hole 113 provided thereon are used to connect with the connecting base 230. The structure is simple and easy to process and produce. The mounting pieces 112 are equivalent to a cantilever structure. The arrangement of the rotating shaft 220 or the support shaft hole 113 on the mounting pieces 112 also facilitates assembly with the connecting base 230. In actual assembly, the connecting base 230 can be forcibly inserted between the two mounting pieces 112, causing the two mounting pieces 112 to form a small amount of outward deformation, thereby allowing the rotating shaft 220 to enter the support shaft hole 113, facilitating assembly of the rotating shaft 220 with the support shaft hole 113. Furthermore, the mounting plate 112 is arranged on the bottom surface of the beam 111, the rotating shaft 220 or the support shaft hole 113 is arranged on the mounting plate 112, and the rotating shaft 220 is installed in the support shaft hole 113, that is, the connecting seat 230, the rotating shaft 220 and the support shaft hole 113 are all located in the accommodating cavity formed by the kettle body 10, the spout 110 and the cover body 210, and are not easily affected by the outside world. Even if the cover body 210 and the kettle lid are opened, they will not contact the connecting seat 230, the rotating shaft 220 and the rotating shaft 220 position and other structures, thereby ensuring the reliability of the automatic opening and closing function of the dust cover 20.

[0095] Although Figure 4 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 The description is given by taking the example that the support shaft hole 113 is set on the mounting plate 112 and the rotating shaft 220 is set on the connecting seat 230, but the present application is not limited to this. According to another aspect of the embodiment of the present application, the positions of the rotating shaft 220 and the support shaft hole 113 can be interchanged.

[0096] In some embodiments, as Figure 7 As shown, the radius R of the rotating shaft 220 is less than or equal to 3 mm. When the friction force of the support shaft hole 113 on the rotating shaft 220 is the same, the smaller the radius R of the rotating shaft 220, the more conducive it is to the automatic rotation of the dust cover 20. Therefore, the size range of the radius R of the rotating shaft 220 is set to R ≤ 3 mm.

[0097] The setting principle of the radius R of the rotating shaft 220 is analyzed as follows: Figure 6 and Figure 7 As shown, when pouring water from the kettle body 10, before the dust cover 20 begins to rotate automatically, it is affected by the following forces: 1) The support force F1 of the spout 110 on the lid body 210. As the kettle body 10 rotates clockwise, F1 approaches zero, and the lever arm is L1. 2) The friction force F2 of the support shaft hole 113 on the rotating shaft 220, with a lever arm of R. 3) The weight F3 of the dust cover 20 itself, with a lever arm of L3, the distance between the center of gravity 201 of the dust cover and the perpendicular bisector of the rotating shaft 220.

[0098] Torque (M): The product of force (F) and lever arm (L). That is, M = F x L. L is the distance from the rotating shaft 220 to the force, and F is the vector force. Therefore, the friction torque is the product of the friction force and the friction lever arm, where R is the friction lever arm.

[0099] The dust cover 20 maintains torque balance before it starts to rotate automatically. As the kettle body 10 rotates, F1 can rotate to a position infinitely close to 0. At this time, the dust cover 20 is at the critical point of the open state. In this state, we can obtain the torque M of the automatic rotation of the dust cover 20 as: M=F3ⅹL3-F2ⅹR.

[0100] Therefore, we can conclude that, when the friction force of the support shaft hole 113 on the rotating shaft 220 is the same, the smaller the radius R of the rotating shaft 220, the more conducive it is to the automatic rotation of the dust cover 20. Therefore, the radius R of the rotating shaft 220 is set in the range of R≤3mm in this embodiment.

[0101] In some embodiments, as Figure 6As shown, when the dust cover 20 covers the spout 110, the dust cover's center of gravity 201 is located on the side of the rotating shaft 220 facing the pouring opening of the spout 110. Furthermore, the angle formed by the line connecting the dust cover's center of gravity 201 and the center 221 of the rotating shaft with a vertical line passing through the center 221 of the rotating shaft is less than or equal to the minimum tilt angle of the kettle body 10 during pouring. This arrangement allows the dust cover 20 to automatically open whenever the kettle body 10 is tilted to pour water, thereby achieving automatic opening of the dust cover 20. Specifically, when the user begins pouring water, the dust cover 20 automatically opens under the force of gravity as the kettle body 10 tilts. When the kettle body 10 reaches its minimum tilt angle for pouring, water flows out of the spout 110. Therefore, during pouring, the dust cover 20 opens first, followed by the water. This prevents the dust cover 20 from contacting the pouring water, ensuring a more concentrated water flow and ensuring a hygienic and smooth pouring experience.

[0102] Table 3 below shows experimental data comparing the ratio of water flow width to water flow thickness of the dustproof kettle 1 and the dustproof kettle 2 in the related art that uses water flow impact to open the dust cover 20 at the spout 110 during pouring, and the ratio of water flow width to water flow thickness of the dustproof kettle using the embodiment of the present application during pouring. The experimental data are carried out under the conditions of the same capacity and pot mouth diameter. It can be seen from the data in Table 3 that the dustproof kettle in the related art has a larger ratio of water flow width to water flow thickness during pouring, and the water flow is more dispersed. The water flow generally flows out in sheets, which is easier to spill when pouring the water in the kettle into the thermos; while the dustproof kettle in the embodiment of the present application has a more concentrated water flow during pouring, basically flows out in a columnar shape, and is not easy to spill.

[0103] Table 1

[0104] Test items Dust-proof kettle in related art 1 Dust-proof kettle in related art 2 Dust-proof kettle of this application Stream width to thickness ratio 2.2-2.8 3-3.5 1.0-1.5

[0105] Furthermore, the center of gravity 201 of the dust cover is located on the side of the rotating shaft 220 facing the pouring port of the spout 110, so that the dust cover 20 has a tendency to rotate in the opposite direction under the action of gravity. Therefore, after pouring, as the kettle body 10 returns to an upright state, the dust cover 20 can automatically rotate under the action of gravity and then cover the spout 110, preventing dust or foreign matter from entering the spout 110. It is convenient and hygienic to use, and there is no need to manually cover the dust cover 20, which is convenient to use. In addition, setting the center of gravity 201 of the dust cover on the side of the rotating shaft 220 facing the pouring port of the spout 110 can also ensure that the dust cover 20 is in a closed state even if the kettle body 10 is placed on a slightly tilted table. The spout 110 can effectively support the dust cover 20 while ensuring that the dust cover 20 fits the spout 110.

[0106] It is understandable that if Figure 8And Figure 9 As shown, the minimum tilting angle of the kettle body 10 when pouring water refers to the angle that the kettle body 10 needs to tilt when the liquid in the kettle reaches the rated highest water level state and can just pour out the water. The smaller the inner diameter of the inner liner, the larger the minimum tilting angle of the kettle body 10 when pouring water. The height difference between the rated highest liquid level and the spout 110 represents the anti-splash height. The larger the anti-splash height, the larger the minimum tilting angle of the kettle body 10 when pouring water.

[0107] Principle description, such as Figure 6 As shown, the included angle formed by the connection line between the center of gravity 201 of the dust-proof cover and the center 221 of the rotating shaft and the vertical line (mid-perpendicular line) passing through the center 221 of the rotating shaft is A, and the minimum tilting angle of the kettle body 10 when pouring water is P. As long as it is ensured that A < P, the dust-proof cover 20 can be guaranteed to automatically open at the starting angle of pouring water. The specific description is as follows: The center of gravity 201 of the dust-proof cover is close to the water outlet side of the spout 110. Therefore, in the normal state, as Figure 1 、 Figure 8 、 Figure 9 As shown, the spout 110 is located on the right side of the kettle body 10. Under the action of gravity, the dust-proof cover 20 has a tendency to rotate downward. Therefore, the dust-proof cover 20 can cover the spout 110 and is supported by the spout 110; when the kettle body 10 is tilted to pour water, the spout 110 moves downward, and the right side of the dust-proof cover 20 loses support. Under the action of gravity, it rotates clockwise around the rotating shaft 220 until the center of gravity 201 of the dust-proof cover is below the mid-perpendicular line of the rotating shaft 220, and the dust-proof cover 20 reaches equilibrium and no longer rotates. When the kettle body 10 continues to tilt to pour water, the spout 110 is separated from the dust-proof cover 20, and the spout 110 is opened.

[0108] As shown in 6, in the case where the kettle body 10 is tilted to pour water, the dust-proof cover 20 rotates clockwise together with the kettle body 10. The included angle formed by the center of gravity of the dust-proof cover 20 and the vertical line passing through the center 221 of the rotating shaft is A. Therefore, when the rotating angle of the kettle body 10 is P, the rotating angle of the dust-proof cover 20 relative to the rotating shaft 220 is P - A. The larger the value of P - A, the larger the opening angle of the dust-proof cover 20 relative to the spout 110. Therefore, the closer the center of gravity 201 of the dust-proof cover is to the vertical line passing through the center 221 of the rotating shaft, the smaller the angle A, the larger the value of P - A, and the larger the automatically opened angle of the dust-proof cover 20. This can ensure that the water poured out from the spout 110 does not touch the dust-proof cover 20, and the water flow will be smoother.

[0109] If it is contrary to this solution: If the center of gravity of the dust-proof cover 20 is far from the vertical line passing through the center 221 of the rotating shaft and the value of A is too large, when A > P, under the action of gravity, when the tilting angle of the kettle body 10 is P, the dust-proof cover 20 will always follow the spout 110, and the dust-proof cover 20 needs to be pushed by the flowing water to be opened. At this time, the dust-proof cover 20 has an obstructive effect on the water flow, the water flow is not concentrated, and the pouring experience is very poor.

[0110] like Figure 9 As shown, when the water level in the kettle body 10 is low and water needs to be poured at a large angle, the dust cover 20 can automatically deflect and open to a larger angle under the action of gravity, ensuring that the cover body 210 still does not contact the water flow, ensuring smooth water flow.

[0111] In some embodiments, the angle formed by the line connecting the center of gravity 201 of the dust cover and the center 221 of the rotating shaft and the vertical line passing through the center 221 of the rotating shaft is greater than or equal to 1° and less than or equal to 25°. In order to ensure that the dust cover 20 can fit well with the spout 110 and prevent the dust cover 20 from tilting when placed horizontally, the center of gravity 201 of the dust cover should be located on the side of the rotating shaft 220 facing the pouring port of the spout 110. It is further defined that the angle formed by the line connecting the center of gravity 201 of the dust cover and the center 221 of the rotating shaft and the vertical line passing through the center 221 of the rotating shaft is greater than or equal to 1°. In this way, it can be ensured that the dust cover 20 can be in a closed state even when the kettle body 10 is placed on a slightly tilted table. To ensure that the dust cover 20 can automatically open under the action of gravity when pouring water, the angle formed by the line between the center of gravity 201 of the dust cover and the center 221 of the rotating shaft and the vertical line passing through the center 221 of the rotating shaft needs to be smaller than the minimum tilt angle of the kettle body 10 when pouring water. The angle is further limited to be less than or equal to 25°. Within this range, it can ensure that the dust cover 20 can automatically open under the action of gravity as the kettle body 10 tilts, and it can also avoid the kettle body 10 tilting at too large an angle to be difficult to operate when pouring water.

[0112] In some embodiments, the kettle body 10 includes an inner liner 120 having a diameter ranging from 80 mm to 200 mm. Furthermore, the inner liner 120 is typically cylindrical with a diameter ranging from 80 mm to 160 mm and a capacity ranging from 0.4 L to 2 L. The smaller the diameter of the inner liner 120, the greater the tilt angle of the kettle body 10 when pouring water; the larger the diameter of the inner liner 120, the smaller the tilt angle of the kettle body 10 when pouring water.

[0113] Furthermore, when the kettle body 10 includes the kettle body 120 , a water outlet is provided on the side wall of the kettle body 120 , and the spout 110 can be provided on the outside of the kettle body 120 and connected to the kettle body 120 .

[0114] In some embodiments, the range in which the highest water level of the kettle body 10 is lower than the height of the spout 110 is greater than or equal to 35 mm and less than or equal to 70 mm. In order to prevent the water in the kettle body 10 from splashing out of the kettle body 10 when the water boils, the rated highest water level of the kettle body 10 is designed to be greater than or equal to 35 mm from the kettle mouth and the spout 110, thereby ensuring sufficient boiling space. Furthermore, the rated highest water level of the kettle body 10 needs to be less than or equal to 70 mm from the kettle mouth and the spout 110. The height between the highest water level of the kettle body 10 and the spout 110 is the splash-proof height. The greater the splash-proof height, the greater the tilt angle of the kettle body 10 when pouring water. Within this range, on the one hand, it can avoid the situation in which the kettle body 10 is slightly tilted due to the splash-proof height being too small, and the water flows into the spout 110 before the dust cover 20 is opened to start pouring water; on the other hand, it can avoid the problem in which the kettle body angle required to start pouring water is too large due to the splash-proof height being too large, which makes the operation difficult.

[0115] Furthermore, the dust cover 20 reduces heat dissipation from the kettle body 10, accelerating the heating process and allowing it to reach the desired temperature more quickly. It also reduces the cooling rate within the kettle body 10 after the water has finished boiling, improving heat preservation. Table 2 below shows experimental data on the effect of the presence or absence of the dust cover 20 on heating speed. As shown in Table 2, given the same capacity and heating power, kettles with the dust cover 20 heat up faster. The dust cover 20 increases the heating rate, allowing kettles with the dust cover 20 to reach the trip temperature in a shorter time.

[0116] Table 2

[0117] Test items No dust cover With dust cover Dust cover advantages Capacity 1.5L, heating power 1500W, heating time from 20° to tripping 6 minutes and 20 seconds 6 minutes and 13 seconds 7 seconds faster Capacity 1.5L, heating power 1500W, heating time from 96° to tripping 23.3 seconds 18.1 seconds 5.2 seconds faster

[0118] Table 3 below shows experimental data on the effect of the presence or absence of a dust cover 20 on the degree of water splashing around the kettle during boiling. The pass criterion for the splash test is generally that the diameter of the water droplets splashing onto the table surface around the kettle after boiling is completed is 2mm or less. Water splashing during boiling typically occurs between the time the liquid nears boiling and the time the kettle trips. Because the dust cover 20 not only blocks splashing at the spout 110 but also shortens the tripping time, it significantly reduces the amount of water splashing onto the table surface around the kettle during boiling. Combined with the test results in Table 2, it can be seen that, given the same capacity and heating power, water droplets splashing onto the table surface around the kettle during boiling are present in kettles without a dust cover 20. The maximum diameter of the droplets that land on the table surface is approximately 8mm, which is high in energy and can easily burn the user. However, kettles with a dust cover 20 produce virtually no water droplets splashing onto the table surface around the kettle during boiling, demonstrating excellent water splash prevention.

[0119] Table 3

[0120]

[0121] In some embodiments, as an example, optionally, the dustproof kettle can be an electric kettle, an electric thermos, a health kettle, or a water storage kettle, an insulated kettle, etc.

[0122] 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, in the opinion of those skilled in the art, such modifications and variations will still fall within the spirit and scope of the embodiments of the present invention as defined in the claims.

Claims

1. A dustproof kettle, characterized in that: include: A kettle body (10), the kettle body (10) comprising a kettle spout (110); a dust cover (20) rotatably connected to the kettle body (10) via a rotating shaft (220), the dust cover (20) being capable of covering the kettle spout (110) and being capable of opening the kettle spout (110) when the kettle body (10) is tilted to facilitate pouring water; The dustproof cover (20) comprises a cover body (210) and a counterweight (240); the cover body (210) can be covered on the spout (110); and the counterweight (240) is detachably connected to the cover body (210).

2. The dustproof kettle according to claim 1, characterized in that: The cover body (210) comprises a cover plate and a connecting seat (230) connected to the cover plate. A receiving groove having an opening (235) is provided in the connecting seat (230), and the counterweight portion (240) can be installed in or removed from the receiving groove via the opening (235).

3. The dustproof kettle according to claim 2, characterized in that: The connecting seat (230) is arranged adjacent to the kettle body (10), and a notch (231) is provided on a side of the accommodating groove facing the kettle body (10), and the counterweight portion (240) can be adjacent to the kettle body (10) via the notch (231).

4. The dustproof kettle according to claim 3, characterized in that: When the dust cover (20) covers the spout (110), the gap between the counterweight (240) and the kettle body (10) is greater than or equal to 0 mm and less than or equal to 2 mm.

5. The dustproof kettle according to claim 3, characterized in that: The connecting seat (230) includes a support plate (232) and a claw (233), wherein the claw (233) is arranged at the end of the support plate (232) extending along the circumferential direction of the kettle body (10), and the claw (233) can cover the edge of the counterweight part (240), and the claw (233) and the support plate (232) enclose to form the accommodating groove.

6. The dustproof kettle according to claim 5, characterized in that: The connecting seat (230) further includes a bottom support (236), which is arranged below the support plate (232) and connected to the support plate (232). The bottom support (236) can support the counterweight portion (240), and a hollow area is provided on the bottom support (236).

7. The dustproof kettle according to any one of claims 2 to 6, characterized in that: A buckle (242) is protruding from one of the connecting seat (230) and the counterweight portion (240), and a buckle hole (234) adapted to the buckle (242) is provided on the other. The buckle (242) is buckled with the buckle hole (234) to connect the connecting seat (230) and the counterweight portion (240).

8. The dustproof kettle according to claim 7, characterized in that: The buckle (242) is a convex block, and the edge of the convex block and the connection between the convex block and the surface on which it is located are in an arc shape.

9. The dustproof kettle according to claim 8, characterized in that: The radius of the arc is greater than or equal to 0.5 mm.

10. The dustproof kettle according to any one of claims 2 to 6, characterized in that: The side of the connecting seat (230) facing the kettle body (10) is a concave surface matching the outer surface of the kettle body (10).

11. The dustproof kettle according to any one of claims 1 to 6, characterized in that: The upper portion of the kettle body (10) is inclined toward the interior of the kettle body (10), and when the cover body (210) is closed onto the spout (110), the counterweight (240) is inclined from the upper end to the lower end in a direction away from the kettle body (10).

12. The dustproof kettle according to any one of claims 1 to 6, characterized in that: The rotating shaft (220) is arranged in the spout (110), and the counterweight (240) is located on a side of the rotating shaft (220) facing the kettle body (10).

13. The dustproof kettle according to any one of claims 1 to 6, characterized in that: A crossbeam (111) is provided on the top of the spout (110), two downwardly protruding mounting plates (112) are provided on the bottom surface of the crossbeam (111), and the rotating shaft (220) is provided on the mounting plates (112).

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