Dustproof pot

Abstract

The embodiment of the present application provides a dustproof kettle, comprising: a kettle body, the kettle body including a spout; a dustproof cover, which is arranged at the spout and used to cover the spout, and the dustproof cover is rotatably connected to the kettle body through a rotating shaft, and can open the spout when the kettle body is tilted to facilitate pouring water; wherein, when the dustproof cover covers the spout, the center of gravity of the dustproof cover is located on the side of the rotating shaft facing the spout, and the line between the center of gravity of the dustproof cover and the center of the rotating shaft forms an angle A with the vertical line passing through the center of the rotating shaft, and when the kettle body is at the rated capacity, the minimum tilt angle of the kettle body when pouring water is P, 1<P / A≤1.6. The dustproof kettle proposed in the embodiment of this aspect can automatically open the dustproof cover as long as the kettle body is tilted to pour water, thereby realizing automatic opening of the dustproof cover, and the dustproof cover can be firmly covered on the spout to avoid being washed away by boiling liquid in the kettle body and causing overflow.

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] At present, the spouts of electric kettles, coffee pots, health pots, tea makers and other pots on the market are mostly open, which makes it easy for dust and small insects to enter through the spouts, affecting the user experience. In order to prevent dust and small insects from entering the pot body, some products are equipped with dust covers at the spouts. The dust cover is opened by the impact of the water flow, 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 the dust cover to be opened manually before pouring water. This method of pouring water is inconvenient, and directly touching the dust cover with your hands can easily contaminate the spout. Summary of the invention

[0003] The present application aims to at least solve the problem in the above-mentioned prior art or related art that the dust cover cannot be opened automatically when pouring water and the dust cover contacts the water flow during the pouring process, resulting in unfocused water flow.

[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, arranged at the spout, used to cover the spout, the dustproof cover is rotatably connected to the kettle body through a rotating shaft, and can open the spout when the kettle body is tilted to facilitate pouring water; wherein, when the dustproof cover covers the spout, the center of gravity of the dustproof cover is located on the side of the rotating shaft facing the spout, the line between the center of gravity of the dustproof cover and the center of the rotating shaft forms an angle A with the vertical line passing through the center of the rotating shaft, and when the kettle body is at rated capacity, the minimum tilt angle of the kettle body when pouring water is P, 1<P / A≤1.6.

[0005] The dustproof kettle proposed in the embodiment of this aspect includes a kettle body, a spout and a dustproof cover. The dustproof cover is rotatably connected to the kettle body through a rotating shaft, so that the dustproof cover can be freely opened and closed at the kettle spout; further, the center of gravity of the dustproof cover is located on the side of the rotating shaft facing the kettle spout, so that the dustproof cover has a tendency to rotate in the opposite direction under the action of gravity, so that after the water is poured, as the kettle body returns to an upright state, the dustproof cover can automatically rotate under the action of gravity, and then cover the kettle spout to prevent dust or foreign matter from entering the kettle spout. It is convenient and hygienic to use, and there is no need to manually cover the dustproof cover, which is convenient to use. In addition, setting the center of gravity of the dustproof cover on the side of the rotating shaft facing the kettle spout can also make the dustproof cover in a closed state even if the kettle body is placed on a slightly inclined table, and the kettle spout can effectively support the dustproof cover while ensuring the fit between the dustproof cover and the kettle spout. In addition, setting a dustproof cover at the kettle spout can also play a technical effect of preventing liquid from overflowing from the kettle spout when boiling water, thereby improving the user experience. In addition, the dust cover can also reduce the heat dissipation in the kettle body, which can increase the heating speed when boiling water and heat it to the specified temperature more quickly. After the boiling water is finished, it can also reduce the cooling speed in the kettle body, and the heat preservation performance is better. In addition, the splashing problem of the kettle when boiling water generally occurs between the time when the liquid is close to boiling and the time when it trips. Since the dust cover can block the splashing at the spout on the one hand and shorten the tripping time on the other hand, it can greatly reduce the water droplets splashing onto the table around the kettle body during the boiling process, and the splash-proof effect is good.

[0006] Furthermore, the angle A formed by the line connecting the center of gravity of the dust cover and the center of the rotating shaft and the vertical line passing through the center of the rotating shaft is smaller than the minimum tilt angle P of the kettle body when pouring water when the kettle body is at the rated capacity, so that the dust cover can be automatically opened when it is tilted to the angle at which water starts to be poured, and automatic opening of the cover is achieved. Specifically, when the user starts to pour water, as the kettle body tilts, when the tilt angle of the kettle body is greater than A, the dust cover is also automatically opened under the action of gravity, and when the kettle body tilts to the minimum tilt angle of the kettle body when pouring water at the rated capacity, the water flows out from the spout. Since P / A>1, that is, A<P, the dust cover is opened first and the water flows out later during the pouring process, so the dust cover will not contact the poured water flow, making the water flow more concentrated, and is conducive to ensuring good hygiene and a smooth pouring experience. Furthermore, the relationship between angle A and angle P also includes P / A≤1.6, so that the dust cover can be firmly covered on the spout to avoid being washed open by the boiling liquid in the kettle body and causing overflow problems. Specifically, on the one hand, due to the setting of the dust cover, liquid can be prevented from splashing from the spout. Therefore, for kettles with the same inner liner diameter, the same inner liner height, and the same spout size, the rated maximum water level line of the kettle body can be set at a higher position, thereby increasing the rated maximum capacity of the kettle body; and for kettle bodies with the same rated capacity, the volume of the kettle body can be reduced as much as possible to reduce costs. On the other hand, the dust cover may be washed away when the liquid in the kettle body boils. In order to prevent splashing, the center of gravity of the dust cover needs to be located on the side of the rotating shaft facing the spout and as far away from the central axis of the rotating shaft as possible to better cover the spout. Therefore, the A value needs to be increased. The increase in the rated maximum water level line of the kettle body will cause a decrease in P. Therefore, it is shown that there is a certain proportional relationship between the angle value of P and the angle value of A, specifically P / A≤1.6. If P / A>1.6, A is too small. When the kettle body is stationary, the center of gravity of the dust cover is too close to the central axis of the rotating shaft. Therefore, the force of covering the spout is small. When the liquid in the kettle boils, the splashing liquid will wash away the dust cover and cause overflow.

[0007] In some embodiments, the dust pot further comprises: a counterweight portion, which is welded or detachably connected or integrally arranged with the dust cover. In this way, the counterweight portion can be used to adjust the center of gravity without changing the shape of the dust cover.

[0008] In some embodiments, the dust cover includes a cover body, and when the cover body covers the spout, the length of the cover body in the horizontal direction between the end close to the kettle body and the end away from the kettle body is S1, and the distance between the two ends of the cover body along the side wall direction of the kettle body is S2, wherein 0.35≤S1 / S2≤1. Within this range, on the one hand, it is possible to avoid the water outlet angle of the spout being too large, the water flow width being too wide, and the water flow being unconcentrated. On the other hand, it is also possible to avoid the problem that the distance h value between the bottom of the counterweight part used to balance the center of gravity of the dust cover and the bottom wall of the spout is too small, which reduces the spatial height of the water outflow and causes the pouring speed to decrease. Specifically, the larger S1 / S2 is, the smaller the water outlet width of the spout is and the more concentrated the water flow is. However, if S1 is too large, in order to ensure that the center of gravity of the dust cover is in a suitable position, the size of the counterweight part needs to be increased, which results in the distance h value between the bottom of the counterweight part of the dust cover balance area and the bottom wall of the spout becoming smaller, which reduces the spatial height of the water outflow and causes the pouring speed to decrease. If S1 / S2 is less than 0.35, on the one hand, the water outlet angle will be too large, the water flow width will be too wide, and the water flow will not be concentrated. If S1 / S2 is greater than 1, although the water flow is more concentrated, because S1 is too large, the size of the counterweight part is too large, and the height of the counterweight part needs to be increased, which will make the distance h from the bottom of the counterweight part to the spout too small, reducing the water outlet area and causing the water flow speed to be too slow.

[0009] In some embodiments, the dust cover includes a cover body and a connecting seat connected to the cover body, a support shaft hole is provided on one of the side walls of the kettle body and the connecting seat, and a rotating shaft is provided on the other side wall, the rotating shaft and the connecting seat or the kettle body on which it is located are an integrated structure, and the rotating shaft is rotatably arranged in the support shaft hole, so that the dust cover is rotatably connected to the kettle body. In this way, one of the connecting seat or the kettle body and the rotating shaft are an integrated structure, and the integrated structure has good mechanical properties, which can improve the connection strength between the rotating shaft and the connecting seat or the kettle body. In addition, one of the connecting seat or the kettle body and the rotating shaft can be made into one piece and mass-produced, which improves the integrity of the dust cover, reduces the number of parts, and reduces the installation process. The cooperation between the rotating shaft and the support shaft hole can ensure the free rotation of the rotating shaft, and the structure is simple and easy to install.

[0010] In some embodiments, the dust cover includes a cover body and a connection seat connected to the cover body, the connection seat is provided with a shaft receiving hole, the kettle body is provided with a support shaft hole, the shaft is inserted into the shaft receiving hole and the support shaft hole, so that the dust cover is rotatably connected to the kettle body. In this way, the shaft is independently provided, and the cooperation between the shaft, the shaft receiving hole and the support shaft hole can ensure the free rotation of the shaft, and the structure is simple and easy to install.

[0011] In some embodiments, a cross beam is provided on the top of the spout, and two downwardly protruding mounting plates are provided on the bottom surface of the cross beam. When the kettle body is provided with a support shaft hole, the number of the support shaft holes is two, and the two support shaft holes are respectively provided on the two mounting plates, and the two support shaft holes are arranged opposite to each other; when the kettle body is provided with a rotating shaft, the number of the rotating shafts is two, and the two rotating shafts are respectively provided on the sides of the two mounting plates facing each other, and the two rotating shafts are arranged opposite to each other.

[0012] In these embodiments, two mounting plates spaced apart on the bottom surface of the cross beam and a rotating shaft or a supporting shaft hole disposed thereon are used to connect with the connecting seat. The structure is simple and easy to process and produce. Furthermore, disposing the rotating shaft or the supporting shaft hole on the protruding mounting plate is also beneficial to the assembly with the connecting seat. In actual assembly, the connecting seat can be forcefully inserted between the two mounting plates so that the two mounting plates are slightly deformed outward, thereby allowing the rotating shaft to enter the supporting shaft hole, facilitating the assembly of the rotating shaft and the supporting shaft hole.

[0013] In some embodiments, the counterweight portion is detachably connected to the dust cover, and a receiving groove with an opening is provided in the connecting seat, and the counterweight portion can be installed into or removed from the receiving groove through the opening.

[0014] In these embodiments, in order to achieve a better counterweight 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 that of the cover body. If the counterweight part and the cover body are designed as an integrated structure or a structure connected by welding, the process is relatively complicated and there are many steps in the processing and production. In the embodiment of this aspect, the counterweight part is detachably connected to the cover body, which can simplify the assembly process between the counterweight part and the cover body, which is beneficial to the processing and production. In addition, the counterweight part can also be disassembled for cleaning, which is beneficial to the cleaning of the product. Furthermore, the setting of the connecting seat provides an installation space for the counterweight part, and a receiving groove with an opening is provided in the connecting seat. During the assembly process, the counterweight part can be pushed into the receiving groove from the opening, which is convenient for operation and simple to assemble.

[0015] In some embodiments, the counterweight is block-shaped, and one side of the counterweight facing the kettle body is a concave arc surface that matches the outer surface of the kettle body. In this way, the side of the counterweight facing the kettle body is set as a concave arc surface, so that the edge of the counterweight extends further toward the inner liner of the kettle body, and the center of gravity of the counterweight is also more offset to one side of the inner liner of the kettle body compared to a rectangular counterweight. Therefore, the center of gravity of the dust cover can be closer to the vertical line passing through the center of the rotating shaft through a smaller counterweight.

[0016] In some embodiments, the side of the connection seat facing the kettle body is a concave surface that matches the outer surface of the kettle body. In this way, the side of the connection seat facing the kettle body is set as a concave surface, so that the edge of the connection seat can be more closely attached to the kettle body, so that it is located in the gap between the circular kettle body and the counterweight part, and the gap is fully utilized, thereby ensuring that the counterweight part can be located as close to the kettle body as possible, and at the same time, the counterweight part and the dust cover can be reliably and effectively connected, ensuring the excellent performance of the dust cover automatically opening, and ensuring the reliability of the structure.

[0017] In some embodiments, the connecting seat is arranged adjacent to the kettle body, a notch is arranged 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.

[0018] 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 via the notch. That is, the connecting seat can install the counterweight part without affecting the counterweight part being close 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 shifted 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 by means of a counterweight part of the same weight and size, which is beneficial for the dust cover to be automatically opened as soon as possible during the process of tilting the kettle body to pour water.

[0019] 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, and the claw and the support plate enclose to form a receiving groove.

[0020] 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, and the gap space is fully utilized, 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, thereby ensuring the excellent performance of the dust cover in automatically opening and the reliability of the structure.

[0021] In some embodiments, the connection seat further includes a bottom bracket, which is arranged below the support plate and connected to the support plate, and can support the counterweight, and a hollow area is arranged on the bottom bracket. With such arrangement, since the counterweight is always subject to gravity and tends to fall downward during use, the bottom bracket can reliably support the counterweight upward, thereby ensuring stable reliability in hot and cold states or at various angles. Furthermore, a hollow area is arranged on the bottom bracket, which can allow condensed water in the connection seat to flow out quickly through the hollow area, thereby avoiding water accumulation in the connection seat.

[0022] In some embodiments, the counterweight is detachably connected to the dust cover, one of the connection seat and the counterweight is provided with a buckle, and the other is provided with a buckle hole adapted to the buckle, and the buckle is buckled with the buckle hole to connect the connection seat and the counterweight. In this way, when the counterweight is pushed into the connection seat, the buckle and the buckle hole can be automatically buckled, making the assembly between the counterweight and the connection seat simple, and the connection between the two can be completed after being installed in place, without the need for additional connection procedures, which greatly saves assembly time.

[0023] In some embodiments, the buckle is a protrusion, and the edge of the protrusion and the connection between the protrusion and the surface where the protrusion is located are in an arc shape.

[0024] In these embodiments, the counterweight is positioned by the cooperation of the buckle and the buckle hole, and the connection between the buckle and the surface where it is located is designed to be arc-shaped, so as to ensure that when the buckle cooperates with the buckle hole, the buckle hole 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 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 the consistency of the center of gravity of the cover body and the counterweight, ensuring the reliability of the automatic opening of the dust cover when pouring water, and avoiding the unstable action of the dust cover, which affects the pouring quality. Furthermore, designing the edge of the protrusion to be arc-shaped can make the assembly smoother.

[0025] In some embodiments, the rotating shaft is arranged in the spout, and the counterweight is located on the side of the rotating shaft facing the kettle body. The rotating shaft is arranged in the accommodating cavity, which is not easily affected by the outside world, and the rotating shaft will not be contacted even if the cover body and the kettle lid are opened, and the rotating shaft is not easily damaged, thereby ensuring the reliability of the automatic opening and closing function of the dust cover.

[0026] In some embodiments, the dust cover further comprises: a leg connected to the cover body, and when the dust cover is opened to a preset angle relative to the spout, the leg can abut against the crossbeam to limit the opening angle of the dust cover. In this way, when the dust cover is opened to a maximum angle relative to the spout, the leg abuts against the crossbeam, thereby limiting the maximum opening angle of the dust cover and preventing the dust cover from being opened too much.

[0027] In some embodiments, the kettle body has an upper opening, and the dustproof kettle also includes a kettle lid, which covers the upper opening of the kettle body. When the legs are abutted against the cross beam, there is a gap between the cover body and the cross beam, so that liquid overflowing through the gap between the kettle lid and the upper opening can enter the spout through the gap.

[0028] In these embodiments, when the kettle body is tilted at too large an angle to pour water or there is too much liquid in the kettle body, the water level will not reach the top of the water outlet on the kettle body and may touch the kettle lid, and a small stream of water will flow out from the gap between the kettle lid and the kettle body. The small stream of water is named as the overflowing water from the gap of the kettle lid. The overflowing water from the gap of the kettle lid can flow into the spout of the kettle through the gap between the lid body and the cross beam and flow out together with the water in the spout, thereby preventing the overflowing water from the gap of the kettle lid from flowing directly onto the lid body and causing water splashing.

[0029] In some embodiments, when the dust cover covers the spout, the angle formed by the line between the center of gravity of the dust cover and the center of the rotating shaft and the vertical line passing through the center 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 can fit the spout well and avoid the dust cover from tilting when placed horizontally, the center of gravity of the dust cover should be located on the side of the rotating shaft facing the spout. It is further defined that the angle formed by the line between the center of gravity of the dust cover and the center of the rotating shaft and the vertical line passing through the center of the rotating shaft is greater than or equal to 1°, so that the dust cover can be in a closed state even when the kettle body is placed on a slightly tilted table. In order to ensure that the dust cover can automatically open under the action of gravity when pouring water, the angle formed by the line between the center of gravity of the dust cover and the center of the rotating shaft and the vertical line passing through the center of the rotating shaft needs to be less than the minimum tilt angle of the kettle body when pouring water. It is further defined that the angle is less than or equal to 25°. Within this range, it can be ensured that the dust cover can automatically open under the action of gravity as the kettle body tilts, and it can also avoid the kettle body tilting too much when pouring water. The angle is difficult to operate.

[0030] In some embodiments, the inner wall diameter of the kettle body is 80 mm to 200 mm. The smaller the diameter of the kettle body, the greater the tilt angle of the kettle body when pouring water; the larger the diameter of the kettle body, the smaller the tilt angle of the kettle body when pouring water.

[0031] In some embodiments, the range of the height of the highest water level line of the kettle body below the spout 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 from splashing out of the kettle body when the water boils, the rated highest water level line of the kettle body is designed to be greater than or equal to 35 mm from the mouth and spout of the kettle, so as to ensure sufficient boiling space. Furthermore, the rated highest water level line of the kettle body needs to be less than or equal to 70 mm from the mouth and spout of the kettle. The height between the highest water level line of the kettle body and the spout is the splash-proof height. The greater the splash-proof height, the greater the tilt angle of the kettle body when pouring water. Within this range, on the one hand, it can avoid the kettle body from tilting slightly due to the small splash-proof height, and the water flows into the spout before the dust cover is opened to start pouring water; on the other hand, it can avoid the problem of the kettle body angle being too large when starting to pour water due to the excessively large splash-proof height, which makes the operation laborious.

[0032] Additional aspects and / or advantages of the present general inventive concept will be set forth in part in the following description and in part will be obvious from the description, or may be learned through practice of the present general inventive concept. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 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:

[0034] Figure 1 is a schematic cross-sectional structure diagram of a dust-proof pot along a longitudinal direction according to an embodiment of the present invention;

[0035] Figure 2 is a schematic diagram of the tilted position of a dustproof kettle when pouring water when the water volume is the rated maximum water volume according to an embodiment of the present invention;

[0036] Figure 3 is a schematic diagram of the inclined position of a dust-proof kettle when pouring water with less water according to an embodiment of the present invention;

[0037] Figure 4 is a front view of a dust cover according to an embodiment of the present invention;

[0038] Figure 5 is a schematic structural diagram of a dust cover according to an embodiment of the present invention;

[0039] Figure 6 is a front view of a dust cover according to another embodiment of the present invention;

[0040] Figure 7 is a front view of a dust cover at a pouring angle according to another embodiment of the present invention;

[0041] Figure 8 is a top view of a dustproof pot according to an embodiment of the present invention;

[0042] Fig. 9 is a schematic structural diagram of a dust cover according to another embodiment of the present invention;

[0043] Fig.10 is another structural schematic diagram of a dust cover according to another embodiment of the present invention;

[0044] Fig.11 is a structural schematic diagram of a dust cover in which a counterweight portion is separated from a connecting seat according to another embodiment of the present invention;

[0045] Fig.12 is a schematic cross-sectional structural diagram of a counterweight portion and a connecting seat after being assembled according to an embodiment of the present invention;

[0046] Fig.13 is a schematic cross-sectional structural diagram of a connecting socket according to an embodiment of the present invention;

[0047] Fig.14 is a schematic structural diagram of a dust cover according to another embodiment of the present invention;

[0048] Fig.15 is an exploded view of a dust cover according to yet another embodiment of the present invention;

[0049] Fig.16 is a schematic structural diagram of a counterweight portion according to yet another embodiment of the present invention;

[0050] Fig.17 is a force diagram of a cover body and a counterweight after being assembled according to another embodiment of the present invention;

[0051] Fig.18 is a schematic cross-sectional structure diagram of a dust-proof pot along a horizontal direction according to another embodiment of the present invention;

[0052] Fig.19 is an exploded view of a dustproof pot according to an embodiment of the present invention;

[0053] Fig. 20 is a schematic structural diagram of a pot spout according to an embodiment of the present invention;

[0054] Fig.21 is a schematic cross-sectional structure diagram of a dust-proof pot along a horizontal direction according to another embodiment of the present invention;

[0055] Fig. 22 is a schematic diagram of a dustproof kettle according to an embodiment of the present invention, in which the kettle body has a relatively large diameter and the kettle body is in an inclined position when pouring water;

[0056] Fig.23is a schematic diagram of a dustproof kettle according to an embodiment of the present invention, in which the kettle body has a relatively small diameter and the kettle body is in a tilted position when pouring water;

[0057] Fig.24 is a schematic cross-sectional structure diagram of a dust-proof kettle along a longitudinal direction in a pouring state according to an embodiment of the present invention;

[0058] Fig.25 is a schematic diagram of a cross-sectional structure of a dust-proof kettle along a longitudinal direction in a state of pouring water at a large angle according to an embodiment of the present invention;

[0059] Fig.26 Shows Fig.25 A partial enlarged view of the K in the middle;

[0060] Fig. 27 is a schematic cross-sectional structure diagram of a dust-proof pot along the longitudinal direction according to another embodiment of the present invention;

[0061] Fig.28 It is a schematic diagram of the cross-sectional structure of a dust-proof pot along the longitudinal direction according to another embodiment of the present invention.

[0062] Figures 1 to 28 Description of Figure Numbers:

[0063] 10 kettle body, 110 kettle spout, 111 beam, 112 mounting plate, 113 support shaft hole, 120 kettle body inner liner, 130 gap,

[0064] 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 bracket, 240 counterweight part, 241 arc surface, 242 buckle, 250 supporting leg,

[0065] 30 sprinkler assembly, 310 tea basket, 320 water pipe, 330 water collection cover,

[0066] 40 filters,

[0067] I: Dust cover balance area, J: Dust cover covers the spout area, N: Water overflows from the gap in the lid, W1: Water surface in the kettle at rest, W2: Water surface in the kettle at the start of pouring. DETAILED DESCRIPTION

[0068] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be clear. For example, the order of operations described herein is only 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 simplicity, the description of features known in the art may be omitted.

[0069] The features described herein can be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided to illustrate only some of the many possible ways to implement the methods, devices, and / or systems described herein, which will be clear after understanding the disclosure of the present application.

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

[0071] 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 only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, first component, first region, first layer, or first portion referred to in the examples may also be referred to as the second member, second component, second region, second layer, or second portion.

[0072] 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” another 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, other elements may not be present therebetween.

[0073] 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 "comprise", "include" and "have" indicate the presence of the described features, quantities, operations, components, elements and / or combinations thereof, but do not exclude 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.

[0074] The limitations of directional terms such as "upper", "lower", "top" and "bottom" in this application are all based on the directional limitations when the product is in normal use and placed upright.

[0075] Unless otherwise defined, all terms used herein, including technical terms and scientific terms, have the same meaning as those generally understood by ordinary technicians in the field to which the present invention belongs after understanding the present invention. Unless explicitly defined as such herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant field and the present invention, and should not be interpreted in an idealized or overly formal way.

[0076] Furthermore, in the description of the examples, when it is considered that a detailed description of a well-known related construction or function will cause vague interpretation of the present invention, such a detailed description will be omitted.

[0077] The following will be combined Figures 1 to 28 The dust pot of some embodiments of the present application is described.

[0078] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, the first aspect of the present invention provides a dustproof kettle, comprising a kettle body 10 and a dustproof cover 20, the kettle body 10 comprising a spout 110; the dustproof cover 20 is arranged at the spout 110, for covering the spout 110, the dustproof cover 20 is rotatably connected to the kettle body 10 via a rotating shaft 220, and can open the spout 110 when the kettle body 10 is tilted, so as to facilitate pouring water; wherein, when the dustproof cover 20 covers the spout 110, the center of gravity 201 of the dustproof cover is located on the side of the rotating shaft 220 facing the spout 110, the line between the center of gravity 201 of the dustproof cover and the center 221 of the rotating shaft forms an angle A with the vertical line passing through the center 221 of the rotating shaft, and when the kettle body 10 is at the rated capacity, the minimum tilt angle of the kettle body 10 when pouring water is P, 1<P / A≤1.6.

[0079] The dustproof kettle proposed in the embodiment of this aspect includes a kettle body 10 and a dustproof cover 20, and the dustproof cover 20 is rotatably connected to the kettle body 10 via a rotating shaft 220, so that the dustproof cover 20 can be freely opened and closed and rotated at the spout 110; the angle A formed by the line between the center of gravity 201 of the dustproof cover and the center 221 of the rotating shaft and the vertical line passing through the center 221 of the rotating shaft is smaller than the minimum tilt angle P of the kettle body 10 when pouring water when the kettle body 10 is at rated capacity, thereby ensuring that the dustproof cover 20 automatically opens when it tilts to the angle where water starts to be poured, thereby realizing automatic opening of the cover. Specifically, when the user starts to pour water, as the kettle body 10 tilts, when the tilt angle of the kettle body 10 is greater than A, the dust cover 20 also opens automatically under the action of gravity. When the kettle body 10 tilts to the minimum tilt angle of the kettle body 10 when pouring water at the rated capacity, the water flows out from the spout 110. Since P / A>1, that is, A<P, the dust cover 20 is opened first and the water flows out later during the pouring process. Therefore, the dust cover 20 will not contact the poured water, making the water flow more concentrated, and is conducive to ensuring good hygiene and a smooth pouring experience. Furthermore, the relationship between the angle A and the angle P also includes P / A≤1.6, so that the dust cover 20 can be firmly covered on the spout 110 to avoid being washed open by the boiling liquid in the kettle body 10 and causing overflow. Specifically, on the one hand, due to the setting of the dust cover 20, liquid can be prevented from splashing from the spout 110. Therefore, for kettles with the same inner pot diameter, the same inner pot height, and the same spout 110 size, the rated maximum water level line of the kettle body 10 can be set at a higher position, thereby increasing the rated maximum capacity of the kettle body 10; and for kettle bodies 10 with the same rated capacity, the volume of the kettle body 10 can be reduced as much as possible, thereby reducing costs. On the other hand, since the liquid in the kettle body 10 may wash away the dust cover 20 when it boils, in order to prevent splashing, the center of gravity 201 of the dust cover needs to be located on the side of the rotating shaft 220 facing the spout 110, and as far away from the central axis of the rotating shaft 220 as possible, so that it can better cover the spout 110. Therefore, the A value needs to be increased. The increase in the rated maximum water level line of the kettle body 10 will cause a decrease in P. Therefore, it is explained that there is a certain proportional relationship between the angle value of P and the angle value of A, specifically P / A≤1.6. If P / A>1.6, A is too small. When the kettle body 10 is stationary, the center of gravity 201 of the dust cover is too close to the central axis of the rotating shaft 220. Therefore, the force of covering the spout 110 is small. When the liquid in the kettle boils, the splashing liquid will wash away the dust cover 20, causing overflow.

[0080] It is worth noting that the center 221 of the rotating shaft may not necessarily be the actual center 221 of the rotating shaft. The center 221 of the rotating shaft here refers to the center of the projection of the rotating shaft 220 on the cross section of the dust pot passing through the center of gravity 201 of the dust cover and along the longitudinal direction. Since the rotating shaft 220 of the dust pot may be arranged in a variety of ways, for example, it may include an integral rotating shaft 220, or two segmented rotating shafts 220, the center 221 of the rotating shaft may not necessarily fall on the cross section of the dust pot passing through the center of gravity 201 of the dust cover and along the longitudinal direction.

[0081] As shown in Table 1 below, under different values ​​of P / A, the amount of water on the dust cover 20 of the kettle body 10, the gap between the dust cover 20 away from the inner liner 120 of the kettle body and the spout 110, the rated capacity of 1.5L, the heating power of 1500W, the heating time from 96°C to tripping, and the 1.5L / 1500W kettle: adding 1.55L of water, heating power of 1725W, the diameter of splashing water droplets and other performances are shown. According to Table 1, firstly, when P / A is greater than or equal to 1, the dust cover 20 has no water on it and performs well, while when P / A is less than 1, there is slight water on the dust cover 20, which means that the water flow contacts the dust cover 20 first, and the dust cover 20 opens later under the impact of the water flow, which may cause the water flow to be unfocused and polluted, affecting the quality of pouring. Second, when the value of P / A is between 0.6 and 1.9, the gap between the dust cover 20 and the inner liner 120 of the kettle body and the spout 110 is 0. Third, when P / A is greater than or equal to 1.6, the rated capacity is 1.5L, the heating power is 1500W, and the heating time from 96°C to tripping is greater than 20 seconds, indicating that the boiling water may have washed away the dust cover 20, resulting in a longer heating time and affecting the heating efficiency; Fourth, when P / A is greater than or equal to 1.6, 1.5L / 1500W kettle: add 1.55L of water, heating power is 1725W, and the diameter of the splashed water droplets is greater than or equal to 1.5mm, indicating that the boiling water droplets have washed away the dust cover 20, causing overflow problems, affecting the user experience.

[0082] Table 1

[0083]

[0084] Furthermore, when the dust cover 20 covers the spout 110 and the kettle body 10 is placed horizontally, the center of gravity 201 of the dust cover is located on the side of the rotating shaft 220 facing the spout 110, that is, Figure 4 , Figure 6As shown, the center of gravity 201 of the dust cover is biased toward the water outlet side of the spout 110 relative to the vertical line passing through the center 221 of the rotating shaft, so that the dust cover 20 has a rotation tendency in the opposite direction (that is, the rotating shaft 220 is away from the water outlet side of the spout 110) under the action of gravity, so that after the water is poured, as the kettle body 10 returns to the 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, which 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 pouring side of the rotating shaft 220 facing the spout 110 can also make the dust cover 20 in a closed state under the action of gravity even if the kettle body 10 is placed on a slightly inclined table, and the spout 110 can effectively support the dust cover 20 while ensuring the fit between the dust cover 20 and the spout 110. In addition, the dust cover 20 provided at the spout 110 can also prevent the liquid from overflowing from the spout 110 when boiling water, thereby improving the user experience. Moreover, the dust cover 20 can also reduce the heat dissipation in the kettle body 10, increase the heating speed when boiling water, and heat to the specified temperature more quickly. After boiling water, it can also reduce the cooling speed in the kettle body 10, and the heat preservation performance is better. The experimental data on the effect of the presence or absence of the dust cover 20 on the heating speed are shown in Table 2 below. It can be seen from the data in Table 2 that under the same capacity and heating power, the kettle with the dust cover 20 heats up faster, the dust cover 20 can increase the heating rate, and the kettle with the dust cover 20 can be heated to the tripping temperature in a shorter time.

[0085] Table 2

[0086]

[0087] Table 3 shows experimental data on the effect of the dust cover 20 on the degree of splashing around the kettle body during the boiling process. The qualified criterion for the splash test is generally that the diameter of the water droplets splashed onto the table around the kettle body after the boiling is completed is less than or equal to 2 mm. The splashing problem of the kettle during boiling generally occurs between the time when the liquid is close to the boiling state and the tripping time. Since the dust cover 20 can block the splashing at the spout 110 on the one hand and shorten the tripping time on the other hand, it can greatly reduce the water droplets splashed onto the table around the kettle body during the boiling process. Combined with the test results in Table 3, it can be seen that under the same capacity and heating power, the kettle without the dust cover 20 has water droplets splashing on the table around the kettle body during the boiling process. The maximum diameter of the water droplets falling on the table is about 8 mm, which has a large energy and is easy to scald the user. The kettle with the dust cover 20 has almost no water droplets splashing on the table around the kettle body during the boiling process, and the anti-splashing effect is good.

[0088] Table 3

[0089]

[0090] It is understandable that if Fig. 22 and Fig.23 As shown, the minimum tilt angle of the kettle body 10 when pouring water refers to the angle at which the kettle body 10 needs to be tilted when the liquid in the kettle reaches the rated maximum water level so that the water can be poured out. The smaller the diameter of the inner liner 120 of the kettle body, the larger the minimum tilt angle of the kettle body 10 when pouring water. The height difference between the rated maximum liquid level and the spout 110 represents the splash-proof height. The larger the splash-proof height, the larger the minimum tilt angle of the kettle body 10 when pouring water.

[0091] Table 4 below shows experimental data on 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 use water flow impact to open the dust cover 20 during pouring, and the ratio of water flow width to water flow thickness of the dustproof kettle at the spout 110 during pouring using the embodiment of the present application. 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 4 that, in the dustproof kettle in the related art, the ratio of water flow width to water flow thickness is larger during pouring, the water flow is more dispersed, and the water flow generally flows out in sheets, which is easier to spill out during the process of pouring the water in the kettle into the thermos kettle; while in the dustproof kettle in the embodiment of the present application, the water flow is more concentrated during pouring, basically flows out in a columnar shape, and is not easy to spill out.

[0092] Table 4

[0093]

[0094] Principle description, such as Figure 2 , Figure 3 , Figure 4 , Figure 6 , Fig. 22 , Fig.23As shown in the figure, the angle formed by the line connecting the center of gravity 201 of the dust-proof cover and the center 221 of the rotating shaft and the vertical line (perpendicular bisector) passing through the center 221 of the rotating shaft is A, and the minimum tilting angle of the kettle body 10 when pouring water with the rated capacity is P. As long as A < P is ensured, 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, 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, so 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 perpendicular bisector of the rotating shaft 220, that is, when the kettle body rotates by an angle A from the horizontal position, the dust-proof cover 20 reaches equilibrium and stops rotating. When the kettle body 10 continues to be tilted to pour water, the spout 110 is separated from the dust-proof cover 20, and the spout 110 is opened.

[0095] As Figures 1 to 4 , Figure 6 , Figure 7 , Figure 24 to Figure 26 As shown in the figure, 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 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 kettle body 10 rotates by an angle P, the rotation 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.

[0096] 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 kettle body 10 is tilted by an angle 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 will not be concentrated, and the pouring experience is very poor.

[0097] As Figure 2 , Figure 3 , Fig.24 , Fig.25 and Fig.26As 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, thereby ensuring smooth water flow.

[0098] In some embodiments, the dust pot further includes: a counterweight 240, which is welded or detachably connected or integrally arranged with the dust cover 20. In this way, the counterweight 240 can be used to adjust the center of gravity without changing the shape of the dust cover 20.

[0099] In some embodiments, the dust cover 20 includes a cover body 210. When the cover body 210 covers the spout 110, Figure 8 As shown, the length in the horizontal direction between the end of the cover body 210 close to the kettle body 10 and the end away from the kettle body 10 is S1, and the distance between the two ends of the cover body 210 along the side wall direction of the kettle body 10 is S2, wherein 0.35≤S1 / S2≤1. Within this range, on the one hand, it is possible to avoid the water outlet angle of the spout 110 being too large, the water flow width being too wide, and the water flow being unconcentrated. On the other hand, it is also possible to avoid the problem that the distance h value between the bottom of the counterweight part 240 for balancing the center of gravity 201 of the dust cover and the bottom wall of the spout 110 is too small, thereby reducing the spatial height of the water outflow and causing a decrease in the pouring speed. Specifically, the larger the S1 / S2 is, the smaller the water outlet width of the spout 110 is, and the more concentrated the water flow is. However, if S1 is too large, in order to ensure that the center of gravity of the dust cover 20 is in a suitable position, the size of the counterweight part 240 needs to be increased, which results in a smaller distance h value between the bottom of the counterweight part 240 in the balance area of ​​the dust cover 20 and the bottom wall of the spout 110, which reduces the height of the space for water to flow out and causes a decrease in the pouring speed. If S1 / S2 is less than 0.35, on the one hand, it will cause the water outlet angle to be too large, the water flow width to be too wide, and the water flow to be unconcentrated. If S1 / S2 is greater than 1, although the water flow is more concentrated, because S1 is too large, the size of the counterweight part 240 required is too large, and the height of the counterweight part 240 needs to be increased, which will make the distance h value from the bottom of the counterweight part 240 to the spout 110 too small, and the water outlet area will be reduced, resulting in a too slow water flow speed.

[0100] Table 5 shows the distance h (mm) from the bottom of the balance area of ​​the dust cover 20 to the spout 110, the water flow width (mm), the water flow speed s / L (the time required to pour out 1L of water) and other performances under different values ​​of S1 / S2. According to Table 5, first, when the value of S1 / S2 is greater than or equal to 1 or less than or equal to 0.35, the distance h from the bottom of the balance area of ​​the dust cover 20 to the spout 110 is small, which affects the water outlet speed, resulting in a slow pouring speed at the spout 110. Second, when the value of S1 / S2 is less than or equal to 0.35, the water flow width is greater than 35mm, the water flow is wide, and it is easy to cause splashing when pouring water. Third, according to the user's experience, 0.35≤S1 / S2≤1, pouring out 1L of water takes less than 10 seconds, which can meet the comfortable pouring requirements; while when S1 / S2 is greater than or equal to 1 or less than or equal to 0.35, it takes more than 10 seconds to pour out 1L of water, which is slow.

[0101] Table 5

[0102]

[0103] In some embodiments, Figures 4 to 7 , Figures 9 to 11 , Fig.14 and Fig.15 As shown, the dust cover 20 includes a cover body 210 and a connecting seat 230, the connecting seat 230 is connected to the cover body 210, and the rotating shaft 220 and the connecting seat 230 are integrally arranged on the side wall of the connecting seat 230; a support shaft hole 113 is provided on the kettle body 10, and the rotating shaft 220 can be rotatably arranged in the support shaft hole 113, so that the dust cover 20 is rotatably connected to the kettle body 10.

[0104] In these embodiments, the connection seat 230 and the rotating shaft 220 are an integrated structure, and the integrated structure has good mechanical properties, which can improve the connection strength between the connection seat 230 and the rotating shaft 220. In addition, the connection seat 230 and the rotating shaft 220 can be made into one piece, mass-produced, and the integrity of the dust cover 20 is improved, the number of parts is reduced, and the installation process is reduced. Further, the cooperation between the rotating shaft 220 and the support shaft hole 113 can ensure the free rotation of the rotating shaft 220, and the structure is simple and easy to install.

[0105] Although the above description is made by taking the example that the rotating shaft 220 is arranged on the connecting seat 230 and the supporting shaft hole 113 is arranged on the kettle body 10, 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 supporting shaft hole 113 can be interchanged.

[0106] It can be understood that the rotating shaft 220 can be an integrated structure with the connecting seat 230 or the kettle body 10 on which it is located, 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.

[0107] In some embodiments, a shaft receiving hole is provided on the connection seat 230, a support shaft hole 113 is provided on the kettle body 10, and 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. The shaft 220 is independently provided, and the cooperation between the shaft 220, the shaft receiving hole and the support shaft hole 113 can ensure the free rotation of the shaft 220, and the structure is simple and easy to install.

[0108] In some embodiments, Fig.19 , Fig. 20 As shown, a crossbeam 111 is provided on the top of the spout 110, and two downwardly protruding mounting plates 112 are provided on the bottom surface of the crossbeam 111. When the kettle body 10 is provided with a support shaft hole 113, the number of the support shaft holes 113 is two, and the two support shaft holes 113 are respectively provided on the two mounting plates 112, and the two support shaft holes 113 are arranged opposite to each other; when the kettle body 10 is provided with a rotating shaft 220, the number of the rotating shafts 220 is two, and the two rotating shafts 220 are respectively provided on the sides of the two mounting plates 112 facing each other, and the two rotating shafts 220 are arranged opposite to each other. In this arrangement, two installation plates 112 spaced apart on the bottom surface of the cross beam 111 and the support shaft hole 113 arranged thereon are used to install the rotating shaft 220. The structure is simple and easy to process and produce. In addition, arranging the support shaft hole 113 on the protruding installation plate 112 is also beneficial to the assembly between the support shaft hole 113 and the rotating shaft 220. In actual assembly, the rotating shaft 220 can be forcefully inserted between the two installation plates 112 so that the two installation plates 112 are slightly deformed outward, thereby allowing the rotating shaft 220 to enter the support shaft hole 113, thereby facilitating the assembly of the rotating shaft 220 and the support shaft hole 113.

[0109] Although the above description is made 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, 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.

[0110] In some embodiments, Figure 6 to Figure 7 , Figures 9 to 11 , Fig.14 , Fig.15 and Fig.18As shown, the dustproof pot also includes: a counterweight part 240, and the counterweight part 240 is detachably connected to the dustproof cover 20. It can be understood that in order to achieve a better counterweight effect, the counterweight part 240 and the cover body 210 are generally made of different materials, and the specific gravity of the counterweight part 240 is greater than the specific gravity of the cover body 210. If the counterweight part 240 and the cover body 210 are designed as an integrated structure or a structure connected by welding, the process is relatively complicated and the steps of processing and production are many. In this embodiment, the counterweight part 240 is detachably connected to the cover body 210, which can simplify the assembly process between the counterweight part 240 and the cover body 210, which is beneficial to processing and production. In addition, the counterweight part 240 can also be disassembled for cleaning, which is beneficial to the cleaning of the product.

[0111] Of course, the embodiment of this solution may not additionally provide the counterweight portion 240. Figure 3 , Figure 4 shown.

[0112] In some embodiments, Fig.11 and Fig.15 As shown, the connection base 230 is provided with a receiving groove having an opening 235, and the counterweight part 240 can be installed into or removed from the receiving groove through the opening 235. In these embodiments, the connection base 230 is provided with an installation space for the counterweight part 240, and the connection base 230 is provided with a receiving groove having an opening 235. During the assembly process, the counterweight part 240 can be pushed into the receiving groove through the opening 235, which is convenient for operation and simple for assembly.

[0113] In some embodiments, Fig.21 As shown, the counterweight 240 is block-shaped, and the side of the counterweight 240 facing the kettle body 10 is a concave arc surface 241 matching the outer surface of the kettle body 10. In this way, the side of the counterweight 240 facing the kettle body 10 is set as the concave arc surface 241, so that the edge of the counterweight 240 extends further toward the inner liner 120 of the kettle body, and compared with the rectangular counterweight 240, the center of gravity of the counterweight 240 is also more offset to one side of the inner liner 120 of the kettle body. Therefore, the center of gravity 201 of the dust cover can be closer to the vertical line passing through the center 221 of the rotating shaft through the counterweight 240 with a smaller mass.

[0114] In some embodiments, Fig.21As shown, the side of the connection 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 connection seat 230 facing the kettle body 10 is set as a concave surface, so that the edge of the connection seat 230 can be more closely fitted in the direction of the kettle body 10, so that it is located in the gap space between the circular kettle body 10 and the counterweight part 240, and the gap space is fully utilized, thereby ensuring that the counterweight part 240 can be located as close to the kettle body 10 as possible, and at the same time, the counterweight part 240 can 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.

[0115] In some embodiments, Figures 9 to 15 As shown, the connecting seat 230 is arranged adjacent to the kettle body 10 , and a notch 231 is arranged on a side of the accommodating groove facing the kettle body 10 , and the counterweight part 240 can be adjacent to the kettle body 10 via the notch 231 .

[0116] 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 via the notch 231. That is, the connecting seat 230 can install the counterweight part 240 without affecting the counterweight part 240 being close to the kettle body 10, 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 shifted 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. The dustproof kettle proposed in the embodiment of this aspect can solve the problems in the related art that the center of gravity 201 of the dustproof cover is set at an unreasonable position, and the dustproof cover 20 needs to be tilted at a large angle to open during the pouring process, which is laborious and difficult to operate. In addition, a large-volume and heavy counterweight 240 needs to be used to adjust the center of gravity 201 of the dustproof cover to make the tilt angle of pouring water reasonable.

[0117] The principle of the setting position of the counterweight part 240 is analyzed as follows: Figure 2 and Figure 6As shown, for the convenience of the following analysis, the midline of the dust cover 20 about the rotating shaft 220 when the kettle body 10 is placed normally vertically is divided into two left and right areas. The part close to the kettle body 10 is called the dust cover balance area I, and the part away from the kettle body 10 is called the dust cover blocking the spout area J. When pouring water, the kettle body 10 is tilted toward the spout 110 relative to the vertical direction. The height h of the space inside the spout 110 for water to flow out smoothly is the distance from the lowest point of the dust cover balance area I to the inner wall of the spout 110. The h value is affected by the dimension X of the farthest end of the dust cover balance area I from the center 221 of the rotating shaft. In the same spout 110 structure, the larger the X value, the smaller the h value. In order to ensure the water flow speed and facilitate the user to pour water, the larger the h value, the better. This requires us to limit the X value as much as possible to ensure a sufficient h value to meet the requirement of fast pouring.

[0118] 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 to pour water, the center of gravity 201 of the dust cover 20 has deflected to the left of the vertical line passing through the center 221 of the rotating shaft before the dust cover 20 starts to rotate automatically, forming an angle a°. It can be seen that from the time when the kettle body 10 is normally placed to the time when the dust cover 20 starts to rotate automatically, the clockwise rotation angle of the kettle body 10 is: P=A+a.

[0119] In order to make the dust cover 20 open automatically as soon as possible, the smaller the P value is, the better. That is, if the a value remains unchanged, the smaller the angle A is, 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 constant, the X value should be limited as much as possible to ensure a sufficient h value to meet the requirement of quick pouring. In order to ensure the h value, there is no extra space in the spout 110 to lengthen the counterweight 240 to reduce the angle A. Therefore, the present application tries to move the counterweight 240 of the dust cover balance area I as far to the left as possible, that is, the closer the counterweight 240 is to the kettle body 10, the more conducive it is for the dust cover 20 to open automatically as soon as possible.

[0120] In some embodiments, the weight portion 240 and the cover body 210 are made of different materials, and the weight portion 240 has a greater specific gravity than the cover body 210. In this way, it is more convenient to adjust the center of gravity of the dust cover 20 as a whole by adjusting the position of the weight portion 240.

[0121] In some embodiments, as an example, optionally, 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 is more conducive to adjusting the center of gravity of the dust cover 20 as a whole 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 one by one.

[0122] In some embodiments, Figures 9 to 15 As 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 can cover the edge of the counterweight part 240. The claw 233 and the support plate 232 enclose a receiving groove.

[0123] 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, and the gap space is fully utilized, 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.

[0124] In some embodiments, Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.18 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 notch 231 is formed between the two claws 233 , and the counterweight 240 is adjacent to the kettle body 10 via the notch 231 .

[0125] In some embodiments, the connection seat 230 also includes a bottom bracket 236, which is arranged below the support plate 232 and connected to the support plate 232. The bottom bracket 236 can support the counterweight 240, and a hollow area is provided on the bottom bracket 236. In this way, since the counterweight 240 is always subject to the force of gravity during use and has a tendency to fall downward, the bottom bracket 236 can reliably support the counterweight 240 upward, ensuring stable reliability in hot and cold states or at various angles. Furthermore, the bottom bracket 236 is provided with a hollow area, which can allow the condensed water in the connection seat 230 to flow out quickly through the hollow area to avoid water accumulation in the connection seat 230.

[0126] In some embodiments, as an example, optionally, Fig.14 , Fig.15 and Fig.17 As shown, the bottom bracket 236 is distributed on both sides of the support plate 232 along the length direction, and the counterweight part 240 is supported by both ends, so that the counterweight part 240 is subjected to force more stably. Fig.17 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 flow out quickly, so that the structure of the bottom bracket 236 is simple and is conducive to processing and production.

[0127] 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 is connected to the end of the support plate 232 in the length direction and extends toward the kettle body 10, leaving space for the thickness of the counterweight 240, and the second connecting plate extends toward the center direction of the counterweight 240, such as Fig.12 and Fig.13 As shown, the cross-sectional shape of the connecting seat 230 is generally C-shaped, a notch 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 notch 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.

[0128] 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 set on the edge of the first connecting plate and can cover the edge of the counterweight part 240. The number of the 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 belong to the protection scope of the present solution without departing from the design concept.

[0129] Furthermore, the first connecting plate and the second connecting plate are in the shape of long strips, and 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 portion 240, so that the two ends of the counterweight portion 240 can be reliably wrapped and connected by the C-shaped structure, which can further ensure that the counterweight portion 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.

[0130] In some embodiments, Figure 6 to Figure 7 , Figures 9 to 11 , Fig.14 , Fig.15 As shown, one of the connection seat 230 and the counterweight part 240 is provided with a buckle 242 protruding thereon, and the other is provided with a buckle hole 234 adapted to the buckle 242, and the buckle 242 is buckled with the buckle hole 234 to connect the connection seat 230 and the counterweight part 240. In this way, when the counterweight part 240 is pushed into the connection seat 230, the buckle 242 and the buckle hole 234 can be automatically buckled, making the assembly between the counterweight part 240 and the connection seat 230 simple, and the connection between the two can be completed by installing them in place, without adding additional connection procedures, which greatly saves assembly time.

[0131] Further, in some embodiments, as an example, optionally, an opening 235 for the counterweight part 240 to be installed into the connecting seat 230 is provided on the top surface or the bottom surface of the connecting seat 230, and the counterweight part 240 is pushed into the connecting seat 230 through the opening 235, and the buckle 242 and the buckle hole 234 can be automatically buckled together, which makes assembly simple.

[0132] 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 .

[0133] In some embodiments, Fig.16 and Fig.17 As shown, the buckle 242 is a protrusion, and the edge of the protrusion and the connection between the protrusion and the surface where it is located are in an arc shape.

[0134] In these embodiments, the counterweight 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 where it is located is designed to be arc-shaped, so as 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 240 in the vertical direction and clamp the counterweight 240 in the horizontal direction, thereby forming a multi-dimensional fixation, ensuring that the counterweight 240 will not shake left and right after assembly, thereby achieving the consistency of the center of gravity of the cover body 210 and the counterweight 240, ensuring the reliability of the automatic opening of the dust cover 20 when pouring water, and avoiding the unstable action of the dust cover 20, which affects the pouring quality. Further, the edge of the protrusion is designed to be arc-shaped, which can make the assembly smoother.

[0135] In some embodiments, the radius of the arc is greater than or equal to 0.5 mm. This makes the range of the arc 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. The radius of the arc includes: Fig.16 RA, RB, RC in.

[0136] It is worth noting that the conventional buckle 242 and the buckle position are in plane contact, the force direction is vertically upward, and it can only support the counterweight part 240 upward, while the buckle hole and the buckle position of this embodiment are in arc surface 241 contact, such as Fig.16 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. Fig.17 As shown, the forces F4 and F5 of the contact surface of the buckle 242 and the buckle position in the mating state are analyzed. 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 the conventional buckle 242 and the buckle position, the direction of the force is more multidimensional, less susceptible to external forces, and better in stability.

[0137] In some embodiments, the rotating shaft 220 is disposed 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 disposed in the accommodating cavity, so that it is not easily affected by the outside world, and even if the cover body 210 and the kettle cover are opened, the rotating shaft 220 will not be contacted, 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.

[0138] In some embodiments, Fig.24 and Fig.25As shown, the dust cover 20 further includes: a leg 250 connected to the cover body 210, and when the dust cover 20 is opened to a preset angle relative to the spout 110, the leg 250 can abut against the spout 110 to limit the opening angle of the dust cover 20. In this way, when the dust cover 20 is opened to a maximum angle relative to the spout 110, the leg 250 abuts against the spout 110, thereby limiting the maximum opening angle of the dust cover 20 and preventing the dust cover 20 from being opened too much.

[0139] Further, as an example, optionally, a crossbeam 111 is provided on the top of the spout 110 , and when the dust cover 20 is opened to a maximum angle relative to the spout 110 , the legs 250 abut against the crossbeam 111 .

[0140] In some embodiments, the kettle body 10 has an upper opening, and the dustproof kettle further comprises a kettle cover, which is covered on the upper opening of the kettle body 10, and when the legs 250 abut against the crossbeam 111, Fig.26 As shown, there is a gap 130 between the cover body 210 and the cross beam 111 , so that the liquid overflowing through the gap between the lid and the upper opening can enter the spout 110 through the gap 130 .

[0141] In these embodiments, when the kettle body 10 is tilted at too large an angle to pour water or there is too much liquid in the kettle body 10, the water level will not cover the top of the water outlet provided on the kettle body 10 and may contact the kettle lid, and a small water flow will flow out from the gap between the kettle lid and the kettle body 10. The small water flow is named as kettle lid gap overflow water flow N here. The kettle lid gap overflow water flow N can flow into the spout 110 through the gap 130 between the cover body 210 and the cross beam, and flow out together with the water flow in the spout 110, thereby preventing the kettle lid gap overflow water flow N from directly flowing onto the cover body 210 and causing water splashing.

[0142] In some embodiments, 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 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 the spout 110 well and avoid 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 spout 110. Even when the kettle body 10 is placed on a slightly tilted table, the dust cover 20 can be in a closed state. In order 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 be automatically opened by gravity as the kettle body 10 tilts, and it can also prevent the kettle body 10 from tilting too much and being difficult to operate when pouring water.

[0143] In some embodiments, the inner wall diameter of the kettle body 10 is 80 mm to 200 mm. The smaller the diameter of the kettle body 10, the greater the tilt angle of the kettle body 10 when pouring water; the larger the diameter of the kettle body 10, the smaller the tilt angle of the kettle body 10 when pouring water.

[0144] In some embodiments, the range of the highest water level of the kettle body 10 below 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 mouth of the kettle and the spout 110, so as to ensure sufficient boiling space. Further, the rated highest water level of the kettle body 10 needs to be less than or equal to 70 mm from the mouth of the kettle 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 kettle body 10 being slightly tilted due to the small splash-proof height, and the water flow 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 that the kettle body angle required to start pouring water is too large due to the excessive splash-proof height, which makes the operation laborious.

[0145] Combine the following Fig. 22 , Fig.23 The influence of different diameters of the inner liner 120 of the kettle body on the tilt angle of pouring water is described. Fig. 22 As shown, with the same spout 110 and splash-proof height, when the inner diameter of the inner pot is 160 mm, the tilt angle P of the kettle body 10 is about 16° when pouring water. Fig. 22In the middle, W1 is the water surface W1 in the kettle body in a static state, and W2 is the water surface W2 in the kettle body in a state of starting to pour water. It can be seen that the inclination angle of the water surface, as the amount of water decreases, the inclination angle of the kettle body 10 will become larger and larger when pouring water.

[0146] like Fig.23 As shown, with the same spout 110 and splash-proof height, when the inner diameter of the inner pot is 80 mm, the tilt angle P of the kettle body 10 is about 24° when pouring water. Fig.23 In the middle, W1 is the water surface W1 in the kettle body in a static state, and W2 is the water surface W2 in the kettle body in a state of starting to pour water. It can be seen that the inclination angle of the water surface, as the amount of water decreases, the inclination angle of the kettle body 10 will become larger and larger when pouring water.

[0147] In some embodiments, as an example, optionally, the dustproof kettle can be an electric kettle, an electric thermos, a health pot, a tea maker, a coffee pot, or a water storage kettle, a thermos kettle, etc.

[0148] Furthermore, in some embodiments, when the dustproof kettle is a tea maker or a coffee maker, the dustproof kettle further includes a filter 40 for holding or filtering tea leaves and coffee to improve the taste. Fig. 27 As shown, the dustproof kettle also includes a sprayer assembly 30, which is arranged in the kettle body 10. The sprayer assembly 30 includes a tea basket 310 located above the liquid surface, a water pipe 320 connected to the tea basket 310, and a water collecting cover 330. The tea basket 310 can hold tea leaves and other brewable materials. When brewing is needed, water is pumped upward through the water pipe 320 into the tea basket 310 to brew the brewable materials. After brewing is completed, the water is stopped from being pumped, thereby controlling the brewing time.

[0149] In the case where the dustproof pot is a teapot or coffee pot, Fig.28 As shown, the dustproof kettle also includes a filter 40, in which tea leaves, coffee and medicinal food can be placed and boiled in the kettle body 10, thereby achieving functions such as brewing tea, cooking medicinal food or brewing coffee.

[0150] 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, these modifications and variations will still fall within the spirit and scope of the embodiments of the present invention defined by the claims.

Claims

1. A dustproof pot, characterized in that: include: A kettle body (10), wherein the kettle body (10) comprises a kettle spout (110); a dust cover (20) disposed at the spout (110) and used to cover the spout (110); the dust cover (20) is rotatably connected to the kettle body (10) via a rotating shaft (220) and can open the spout (110) when the kettle body (10) is tilted to facilitate pouring water; wherein, when the dust cover (20) covers the spout (110), the center of gravity (201) of the dust cover is located on the side of the rotating shaft (220) facing the spout (110), 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 is A, and when the kettle body (10) is at rated capacity, the minimum tilt angle of the kettle body (10) when pouring water is P, 1<P / A≤1.6; A crossbeam (111) is provided on the top of the spout (110); the dust cover (20) comprises a cover body (210) and a support leg (250); the support leg is connected to the cover body (210); The kettle body (10) has an upper opening, and the dustproof kettle also includes a kettle cover, which covers the upper opening of the kettle body (10); when the dustproof cover (20) is opened at a preset angle relative to the kettle spout (110), the supporting legs (250) can abut against the cross beam (111), and a gap (130) is provided between the cover body (210) and the cross beam (111), so that liquid overflowing through the gap between the kettle cover and the upper opening can enter the kettle spout (110) through the gap (130).

2. The dustproof pot according to claim 1, characterized in that: The dustproof pot also includes: A counterweight portion (240), the counterweight portion (240) being connected to the dust cover (20) by welding or being detachably connected or being integrally arranged.

3. The dustproof pot according to claim 2, characterized in that: When the cover body (210) covers the spout (110), the length in the horizontal direction between one end of the cover body (210) close to the kettle body (10) and one end away from the kettle body (10) is S1, and the distance between the two ends of the cover body (210) along the side wall direction of the kettle body (10) is S2, wherein 0.35≤S1 / S2≤1.

4. The dustproof pot according to claim 2, characterized in that: The dust cover (20) comprises a cover body (210) and a connecting seat (230) connected to the cover body (210); a supporting shaft hole (113) is provided on one of the side walls of the kettle body (10) and the connecting seat (230); the rotating shaft (220) is provided on the other side wall; the rotating shaft (220) is an integrated structure with the connecting seat (230) or the kettle body (10) on which it is located; the rotating shaft (220) is rotatably arranged in the supporting shaft hole (113), so that the dust cover (20) is rotatably connected to the kettle body (10); or The connecting seat (230) is provided with a rotating shaft receiving hole, the kettle body (10) is provided with a supporting shaft hole (113), and the rotating shaft (220) is inserted into the rotating shaft receiving hole and the supporting shaft hole (113), so that the dust cover (20) is rotatably connected to the kettle body (10).

5. The dustproof pot according to claim 4, characterized in that: The bottom surface of the crossbeam (111) is provided with two downwardly protruding mounting plates (112). When the kettle body (10) is provided with the support shaft hole (113), the number of the support shaft holes (113) is two, the two support shaft holes (113) are respectively provided on the two mounting plates (112), and the two support shaft holes (113) are arranged opposite to each other; When the kettle body (10) is provided with the rotating shaft (220), the number of the rotating shafts (220) is two, the two rotating shafts (220) are respectively arranged on the sides of the two mounting plates (112) facing each other, and the two rotating shafts (220) are arranged opposite to each other.

6. The dustproof pot according to claim 4, characterized in that: The counterweight part (240) is detachably connected to the dust cover (20); a receiving groove having an opening (235) is provided in the connection seat (230); and the counterweight part (240) can be installed in the receiving groove or removed from the receiving groove via the opening (235).

7. The dustproof pot according to claim 6, characterized in that: The counterweight portion (240) is block-shaped, and a surface of the counterweight portion (240) facing the kettle body (10) is an inwardly concave arc surface (241) matching the outer surface of the kettle body (10); and / or A surface of the connecting seat (230) facing the kettle body (10) is a concave surface matching the outer surface of the kettle body (10).

8. The dustproof pot according to claim 6, characterized in that: The connecting seat (230) is arranged adjacent to the kettle body (10); a notch (231) is arranged 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).

9. The dustproof pot according to claim 8, characterized in that: The connecting seat (230) comprises a support plate (232) and a claw (233); the claw (233) is arranged at an end portion of the support plate (232) extending along the circumferential direction of the kettle body (10); the claw (233) can cover the edge of the counterweight portion (240); the claw (233) and the support plate (232) enclose the accommodating groove.

10. The dustproof pot according to claim 9, characterized in that: The connecting seat (230) further comprises a bottom bracket (236), wherein the bottom bracket (236) is arranged below the support plate (232) and connected to the support plate (232), the bottom bracket (236) is capable of supporting the counterweight portion (240), and a hollow area is arranged on the bottom bracket (236).

11. The dustproof pot according to claim 4, characterized in that: The counterweight portion (240) is detachably connected to the dust cover (20); a buckle (242) is protruding from one of the counterweight portion (240) and the connecting seat (230); a buckle hole (234) matching the buckle (242) is provided on the other; the buckle (242) is buckled with the buckle hole (234) to connect the counterweight portion (240) and the connecting seat (230).

12. The dustproof pot according to claim 11, 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.

13. The dustproof pot according to any one of claims 2 to 12, characterized in that: The rotating shaft (220) is arranged in the spout (110), and the counterweight portion (240) is located on a side of the rotating shaft (220) facing the kettle body (10).

14. The dustproof pot according to any one of claims 1 to 12, characterized in that: When the dust cover (20) covers the spout (110), an angle formed by a line connecting the center of gravity (201) of the dust cover and the center (221) of the rotating shaft and a 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°.

15. The dustproof pot according to any one of claims 1 to 12, characterized in that: The inner wall diameter of the kettle body (10) is 80 mm to 200 mm; and / or The range in which the highest water level of the kettle body (10) is lower than the height of the kettle spout (110) is greater than or equal to 35 mm and less than or equal to 70 mm.

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