Anti-spill kettle
The kettle's weighted handle and steam valve mechanism minimize spilling by maintaining the spout's upward tilt and closing the steam passage upon tipping, effectively reducing hot water overflow and enhancing safety.
Patent Information
- Application Number
- JP2025001586U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2025-04-03
- Filing Date
- 2025-05-20
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2035-05-20
AI Technical Summary
Existing kettles with long spouts are prone to spilling hot water when tipped over, posing a safety risk due to overflow from both the spout and steam holes in the lid.
The kettle design includes a weighted handle to maintain an upwardly inclined spout position and a steam valve in the lid that closes upon tipping, preventing overflow by maintaining pressure balance and limiting communication through the spout.
Reduces the amount of hot water overflow and enhances user safety by ensuring water only exits through the inclined spout, even when the kettle tips over.
Smart Images

Figure 0003252084000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of kettles, and particularly to an anti-spill kettle.
Background Art
[0002] With the development of society and the progress of science and technology, people's requirements for the quality of life are increasing. People who used to prefer traditional espresso coffee are gradually turning to hand-drip coffee, and moreover, their requirements for hand-drip coffee are also rising. As a result, many cafes have come to offer hand-drip coffee in addition to traditional espresso coffee, and the main tool used for hand-drip coffee is a hand-drip kettle, which can be used to make coffee or tea.
[0003] Currently, the kettles on the market have long spouts, and their design enables the control of the water outlet direction and the amount of water discharged, making it easy to make coffee. However, during use, repeated operations are required, and there is a risk of tipping over. There is hot water in the kettle, and generally, there are holes for steam to circulate in the lid. At that time, since the spout is also in an open state, when it tips over, a large amount of hot water is likely to overflow from both the holes in the lid and the spout, which may cause burns to the user's skin.
Summary of the Invention
Problems to be Solved by the Invention
[0004] An object of the present invention is to solve the problems existing in the above-mentioned prior art and provide an anti-spill kettle that reduces the amount of hot water overflowing when it tips over and improves the safety of the user.
Means for Solving the Problems
[0005] To achieve the above object, the present invention provides the following technical means. The present invention provides an anti-spill kettle, which includes a kettle body and a lid. The kettle body has a storage cavity and an upper opening communicating with the storage cavity. The lid is sealable and fixedly installed at the upper opening of the storage cavity. When placed on a horizontal plane, the cross-sectional shape of the kettle body in the horizontal plane is circular. A long tube spout and a handle are arranged on the outer wall of the kettle body. The long tube spout is positioned to face the handle. By increasing the weight of the handle so that the center of gravity of the kettle body approaches the handle, when the kettle body falls on the placement plane, the position of the kettle body with the handle partially contacts the placement plane. The long tube spout is in an upwardly inclined posture, and the end opening of the long tube spout is located at the highest point of the long tube spout. The lid is installed so that the center of gravity is offset, and due to the offset of the center of gravity of the lid, the center of gravity of the kettle body can approach the handle. A steam passage is installed in the lid, and a steam valve is installed in the steam passage. The storage cavity of the kettle body in a state of being placed on a horizontal plane can communicate with the outside through the steam passage. When the kettle body falls over, the steam valve can close the steam passage to prevent the liquid in the storage cavity from flowing out of the steam passage.
[0006] Preferably, an elastically deformable sealing ring is fixedly installed in the upper opening of the storage cavity. The inner diameter of the sealing ring is smaller than the inner diameter of the lower end of the lid, and the outer diameter of the sealing ring is larger than the inner diameter of the lower end of the lid. When the lid is sealed and fixed to the upper opening of the storage cavity, the lower end of the lid abuts against the upper end of the sealing ring.
[0007] Preferably, when the kettle body is placed on a horizontal plane, the outer diameter of the upper end of the kettle body is smaller than the outer diameter of the lower end of the kettle body, and the outer side wall of the upper end of the kettle body and the outer side wall of the lower end of the kettle body are connected in a curved surface shape, and the weight of the handle is increased and installed so that the center of gravity of the kettle body approaches the side with the handle at the upper end of the kettle body.
[0008] Preferably, an exhaust cavity is installed in the lid portion, the lower opening of the exhaust cavity can communicate with the storage cavity, and the upper opening of the exhaust cavity can communicate with the outside. The exhaust cavity forms the steam passage. The steam valve includes a steel ball cavity and a steel ball. The steel ball cavity is fixedly installed in the exhaust cavity. The lower opening of the steel ball cavity communicates with the lower opening of the exhaust cavity. The steel ball is located in the steel ball cavity, and the steel ball is movable in the axial direction of the steel ball cavity. A flow passage is installed in the circumferential direction of the steel ball in the steel ball cavity. The upper opening of the steel ball cavity communicates with the exhaust cavity. The storage cavity of the kettle body in a state of being placed on a horizontal plane can communicate with the exhaust cavity through the lower opening of the steel ball cavity, the flow passage and the upper opening of the steel ball cavity. When the kettle body falls down, the steel ball can roll to the upper opening of the steel ball cavity to close the upper opening of the steel ball cavity.
[0009] Preferably, a steam flow passage is fixedly installed on the outer side wall of the kettle body. The upper end opening of the steam flow passage communicates with the exhaust cavity, and the temperature detection system is connected to the lower end of the steam flow passage.
[0010] Preferably, the installation of increasing the weight of the handle includes increasing the weight of the handle by increasing the density of the material of the handle, or increasing the weight of the handle by increasing the volume of the handle, or increasing the weight of the handle by adding a weight member into the handle.
[0011] Preferably, a flow rate limiting unit for reducing the end opening of the long tube spout is installed at the end opening of the long tube spout.
[0012] Preferably, the flow rate limiting unit is a baffle plate, the baffle plate is fixedly installed at the end opening of the long tube spout, and the baffle plate is arranged to cover a part of the end opening of the long tube spout.
[0013] Preferably, two opposing telescopic sliding grooves are opened on the side wall of the lid, one telescopic locking lever is slidably provided in each telescopic sliding groove, two opposing locking grooves are opened on the inner side wall of the upper opening of the storage cavity, each locking groove corresponds to one telescopic locking lever, and the telescopic locking lever fixedly connects the lid and the kettle body by being inserted into the locking groove.
[0014] Preferably, a receiving boss is installed in the upper opening of the storage cavity, a receiving annular surface is provided on the lid, and when the lid closes the upper opening of the storage cavity, the receiving annular surface is located on the receiving boss.
Advantages of the Invention
[0015] Compared with the prior art, the present invention has the following beneficial effects: The spill - proof kettle of the present invention has a weighted design of the handle, which makes the center of gravity of the kettle body approach the handle. When the kettle body is placed upside - down on a flat surface, a part of the position of the handle contacts the flat surface, so that the long - tube spout is in an inclined upward posture, that is, the end opening is upward. With such a design, the amount of hot water overflowing from the long - tube spout when the kettle falls can be reduced. Furthermore, since the lid is provided with a steam valve that closes the steam passage when the kettle body falls, the kettle body can maintain the pressure balance with the outside through the steam passage on the lid before falling. When the kettle body falls, since the steam passage is closed, the storage cavity of the kettle body communicates with the outside only through the long - tube spout, and the hot water in the kettle body cannot overflow from the long - tube spout due to the obstruction of the external atmospheric pressure. Through the mutual cooperation of closing the steam passage on the lid and the weighted installation of the handle when falling, the amount of hot water overflowing when the kettle body falls can be reduced, and the safety for users can be improved.
Brief Description of the Drawings
[0016] To more clearly explain the technical means in the embodiments of the present invention or the prior art, the drawings required for use in the following embodiments will be briefly described below. However, the following drawings are only some embodiments of the present invention. On the premise that those skilled in the art do not engage in creative activities, other drawings can be obtained based on these drawings.
[0017]
Figure 1
Figure 2
Figure 3
Figure 4
Best Mode for Carrying Out the Invention
[0018] In the following, the technical means in the embodiments of the present invention will be described in more detail by combining the drawings and the embodiments. Clearly, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments that can be obtained by those skilled in the art without creative effort are included in the protection scope of the present invention.
[0019] An object of the present invention is to solve the problems existing in the prior art, reduce the amount of hot water overflowing during a fall, and provide an anti-spill kettle that improves the safety of the user.
[0020] To make the above objects, features, and advantages of the present invention clearer and easier to understand, the following will provide a more detailed description by combining the drawings and specific embodiments.
[0021] Embodiment 1 In this embodiment, it is to provide a kettle that prevents spillage. As shown in FIGS. 1 to 4, the kettle for prevention includes a kettle body 10 and a lid 20. The kettle body 10 has a storage cavity and an upper opening communicating with the storage cavity. The lid 20 is sealable and fixedly installed in the upper opening. When placed on a horizontal plane, the cross-sectional shape of the kettle body 10 in the horizontal plane is circular. A long tube spout 11 and a handle 12 are arranged on the outer wall of the kettle body 10. The long tube spout 11 is positioned to face the handle 12. By increasing the weight of the handle 12 so that the center of gravity of the kettle body 10 approaches the handle 12, thus, when the kettle body 10 falls on the placement plane, the position of the kettle body 10 with the handle 12 partially contacts the placement plane, the long tube spout 11 assumes an upwardly inclined posture, and the end opening of the long tube spout 11 is positioned at the highest point of the long tube spout 11. A steam passage is installed in the lid 20, and a steam valve is installed in the steam passage. The storage cavity of the kettle body 10 in the state of being placed on a horizontal plane can communicate with the outside through the steam passage, and when the kettle body 10 falls over, the steam valve can close the steam passage to prevent the liquid in the storage cavity from flowing out from within the steam passage.
[0022] Due to the weighted design of the handle 12, the center of gravity of the kettle body 10 approaches the handle 12. When the kettle body 10 is laid down on a flat surface, a part of the handle 12 comes into contact with the flat surface, causing the long-tube spout 11 to tilt upward, that is, the end opening faces upward. With such a design, the amount of hot water overflowing from the long-tube spout 11 when the kettle body 10 is overturned can be reduced. The lid part 20 is provided with a steam valve that closes the steam passage when the kettle body 10 is overturned. Therefore, the kettle body 10 can maintain the pressure balance with the outside through the steam passage on the lid part 20 before overturning. When the kettle body 10 is overturned, since the steam passage is closed, the storage cavity of the kettle body 10 communicates with the outside only through the long-tube spout 11, and the hot water in the kettle body 10 cannot overflow from the long-tube spout 11 due to the obstruction of the external atmospheric pressure. Through the mutual cooperation of the closure of the steam passage on the lid part 20 and the weighted installation of the handle 12 when overturned, the amount of hot water overflowing when the kettle body 10 is overturned can be reduced, and the safety for the user can be improved.
[0023] Among them, the related installation of the lid part 20 will be described below.
[0024] In a selectable aspect according to an embodiment of the present invention, more preferably, as shown in FIGS. 1 and 3, an exhaust cavity 21 is provided in the lid portion 20. The lower opening of the exhaust cavity 21 can communicate with the storage cavity, and the upper opening of the exhaust cavity 21 can communicate with the outside. The exhaust cavity 21 forms a steam passage. The steam valve includes a steel ball cavity 22 and a steel ball 23. The steel ball cavity 22 is fixedly installed in the exhaust cavity 21. The lower opening of the steel ball cavity 22 communicates with the lower opening of the exhaust cavity 21. The steel ball 23 is located in the steel ball cavity 22 and the steel ball 23 is movable in the axial direction of the steel ball cavity 22. A flow passage is installed in the circumferential direction of the steel ball 23 in the steel ball cavity 22. The upper opening of the steel ball cavity 22 communicates with the exhaust cavity 21. The storage cavity of the kettle body 10 in a state of being placed on a horizontal plane can communicate with the exhaust cavity 21 through the lower opening of the steel ball cavity 22, the flow passage and the upper opening of the steel ball cavity 22. When the kettle body 10 is overturned, the steel ball 23 can roll to the upper opening of the steel ball cavity 22 to close the upper opening of the steel ball cavity 22.
[0025] Specifically, a plurality of support plates 221 are fixed to the inner circumferential side wall of the steel ball cavity 22. There is a gap between every two adjacent support plates 221, and this gap is a part of the flow passage. Also, when the steel ball 23 of the lid portion 20 is in the lowest position with the kettle body 10 placed on a horizontal plane, the lower opening of the steel ball cavity 22 is still in a state of communicating with the communication passage.
[0026] Regarding the related installation of the kettle body 10, it will be described below.
[0027] In a selectable aspect according to an embodiment of the present invention, more preferably, the installation for increasing the weight of the handle 12 includes increasing the density of the material of the handle 12, or increasing the volume of the handle 12, or adding a weight member 121 into the handle 12 to increase the weight of the handle 12.
[0028] Specifically, the installation of the weight increase of the handle 12 includes, but is not limited to, the above-mentioned weight increase methods.
[0029] In an alternative aspect according to an embodiment of the present invention, more preferably, as shown in FIGS. 1 and 2, when the kettle body 10 is placed on a horizontal plane, the outer diameter of the upper end of the kettle body 10 is smaller than the outer diameter of the lower end of the kettle body 10, and the outer side wall of the upper end of the kettle body 10 and the outer side wall of the lower end of the kettle body 10 are connected in a curved surface shape, and the weight of the handle 12 is increased and installed so that the center of gravity of the kettle body 10 approaches the side with the handle 12 at the upper end of the kettle body 10.
[0030] In an alternative aspect according to an embodiment of the present invention, more preferably, as shown in FIG. 1, the steam flow path 15 is fixedly installed on the outer side wall of the kettle body 10, the upper end opening of the steam flow path 15 communicates with the exhaust cavity 21, and the temperature detection system is connected to the lower end of the steam flow path 15.
[0031] Specifically, a protective cover 16 is provided outside the position of the outer side wall of the kettle body 10 on the steam flow path 15, and the handle 12 is fixed to the protective cover 16.
[0032] Specifically, the temperature detection system is used to be interlocked with the heating control switch, and after reaching the desired temperature, operations such as automatic turn-off of the heating control switch can be realized. In the case of a steam switch, after reaching the set temperature, the heating function is turned off. Also, the temperature detection system can include a display and a temperature sensor in addition to the steam switch. The temperature sensor is used to measure the steam temperature, and the display is used to display the measured steam temperature. When the steam temperature measured by the temperature sensor reaches the set temperature, the steam switch can be activated to turn off the heating function.
[0033] Specifically, the anti-spill kettle according to the embodiment of the present invention has a version with a small spout and a version with a large spout. In the case of the version with a small spout, since the diameter of the long-tube spout 11 is small, the cross-sectional area of the hole of the long-tube spout 11 is 38 mm 2 as follows. In this case, it is not necessary to install a flow restriction unit at the end opening of the long-tube spout 11. In the case of the version with a large spout, since the diameter of the long-tube spout 11 also becomes large accordingly, a flow restriction unit is installed at the end opening of the long-tube spout 11.
[0034] In an alternative aspect according to the embodiment of the present invention, more preferably, as shown in FIG. 2, a flow restriction unit is provided at the end opening of the long-tube spout 11, and the flow restriction unit is used to reduce the end opening of the long-tube spout 11.
[0035] In an alternative aspect according to the embodiment of the present invention, more preferably, as shown in FIG. 2, the flow restriction unit is a baffle plate 111. The baffle plate 111 is fixedly installed at the end opening of the long-tube spout 11, and the baffle plate 111 is arranged to cover a part of the end opening of the long-tube spout 11.
[0036] Specifically, the flow restriction unit may be, in addition to the baffle plate 111 fixed to the end opening of the long-tube spout 11, a half stopper provided at the end opening of the long-tube spout 11. The half stopper is rotatably provided at the end opening of the long-tube spout 11, and the half stopper can close a part of the opening of the long-tube spout 11 by magnetic adsorption. Also, during normal use, the adsorption can be released by the impact of the water flow in the long-tube spout 11. Further, in order to improve the ability of the half stopper to be magnetically adsorbed correctly at the opening of the long-tube spout 11 without being adsorbed in the reverse direction on the outer wall of the long-tube spout 11, a regulating structure such as a regulating lever for regulating the rotation position of the half stopper to prevent the half stopper from rotating in the reverse direction around its rotation axis and being adsorbed on the outer wall of the long-tube spout 11 may be provided.
[0037] Among them, the installation regarding the connection structure between the kettle body 10 and the lid 20 will be described.
[0038] In a selectable aspect according to an embodiment of the present invention, more preferably, as shown in FIGS. 1 and 3, a receiving boss 13 is installed inside the upper opening of the kettle body 10, and a receiving annular surface is provided on the lid 20. When the lid 20 closes the upper opening of the kettle body 10, the receiving annular surface is located above the receiving boss 13.
[0039] In a selectable aspect according to an embodiment of the present invention, more preferably, as shown in FIGS. 1, 3 and 4, an elastically deformable sealing ring 14 (when the material is rubber) is fixedly installed inside the upper opening of the kettle body 10. The inner diameter of the sealing ring 14 is smaller than the inner diameter of the lower end of the lid 20, and the outer diameter of the sealing ring 14 is larger than the inner diameter of the lower end of the lid 20. When the lid 20 is sealed and fixed to the upper opening, the lower end of the lid 20 abuts against the upper end of the sealing ring 14 (the portion of the sealing ring 14 that fits with the lid 20 is provided obliquely, and the lower end of the lid 20 is crimped on the upper surface of the sealing ring 14).
[0040] In a selectable aspect according to an embodiment of the present invention, more preferably, as shown in FIGS. 1, 3 and 4, two opposing telescopic sliding grooves are formed on the side wall of the lid 20, and one telescopic locking lever 24 is slidably provided in each telescopic sliding groove. Two opposing locking grooves are formed on the inner side wall of the upper opening of the kettle body 10. Each locking groove corresponds to one telescopic locking lever 24, and the telescopic locking lever 24 is inserted into the locking groove, thereby fixedly connecting the lid 20 and the kettle body 10.
[0041] Specifically, one end of two telescopic lock levers 24 close to the axis of the lid part 20 serves as an operation end 241, a spring 25 is provided between the two operation ends 241, and in the natural state, the two telescopic lock levers 24 are in a protruding state. A placement groove 26 and an operation port communicating with the placement groove 26 are provided at the upper end of the lid part 20. The operation end 241 of the telescopic lock lever 24 can enter deeply into the placement groove 26 through this operation port. When the operator's finger is positioned in the placement groove 26 and the operation end 241 is pushed in the reverse direction, the telescopic lock lever 24 can be retracted, and the connection between the lid part 20 and the kettle body 10 can be released.
[0042] Among them, regarding other related aspects, they will be described below.
[0043] Specifically, in the anti-spill kettle provided in this embodiment, it can meet the technical standard requirements of the Japanese Electrical Appliance Safety Law, that is, under the required test conditions, the amount of hot water outflow is a result that meets the requirements of its test standard. (For example, the amount of water overflowing within 10 seconds after tipping over does not exceed 50 grams, etc.)
[0044] Specifically, a heating base 30 used in combination with the kettle body 10 is further provided. The heating base 30 is used to heat the water in the kettle body 10, but since this is a known technology, detailed description is avoided here.
[0045] Specifically, the heating base 30 is circular. Even when the whole of the heating base 30, the kettle body 10, the lid part 20, etc. are tipped over, the purpose of reducing the overflow amount can be achieved as well.
[0046] Specifically, in the anti-spill kettle provided in this embodiment, other related structures not mentioned, such as heating members provided at the bottom of the kettle body 10 used in combination with the heating base 30, etc., since this is a known technology, detailed description is avoided here.
[0047] This invention has been described with specific examples regarding its principles and embodiments. The examples related to the above embodiments are only for assisting in understanding the method of this invention and its core idea. At the same time, for those of ordinary skill in the art, based on the idea of this invention, the specific implementation manners and application scopes can be changed. As described above, the content of this specification should not be construed as limiting this invention.
Explanation of Reference Numerals
[0048] 10 Kettle body 11 Long pipe spout 111 Baffle plate 12 Handle 121 Weight member 13 Receiving boss 14 Seal ring 15 Steam flow path 16 Protection cover 20 Lid part 21 Exhaust cavity 22 Steel ball cavity 221 Support plate 23 Steel ball 24 Telescopic lock lever 241 Operation end 25 Spring 26 Placing groove 30 Heating base
Claims
1. An anti-spill kettle including a kettle body and a lid, wherein the kettle body has a storage cavity, the lid is sealable and fixedly installed at the upper opening of the storage cavity, and when placed on a horizontal plane, the cross-sectional shape of the kettle body in the horizontal plane is circular, a long-tube spout and a handle are arranged on the outer wall of the kettle body, and the long-tube spout is positioned to face the handle, by increasing the weight of the handle so that the center of gravity of the kettle body approaches the handle, when the kettle body falls on the placement plane, the position of the kettle body with the handle partially contacts the placement plane, the long-tube spout is in an upwardly inclined posture, and the end opening of the long-tube spout is located at the highest point of the long-tube spout, a steam passage is installed in the lid, a steam valve is installed in the steam passage, the storage cavity of the kettle body in a state of being placed on a horizontal plane can communicate with the outside through the steam passage, and when the kettle body falls over, the steam valve can close the steam passage to prevent the liquid in the storage cavity from flowing out of the steam passage. An anti-spill kettle is characterized by this.
2. An elastically deformable sealing ring is fixedly installed in the upper opening of the storage cavity, the inner diameter of the sealing ring is smaller than the inner diameter of the lower end of the lid, and the outer diameter of the sealing ring is larger than the inner diameter of the lower end of the lid, The anti-spill kettle according to claim 1, characterized in that when the lid is sealed and fixed to the upper opening of the storage cavity, the lower end of the lid abuts against the upper end of the sealing ring.
3. When the kettle body is placed on a horizontal plane, the outer diameter of the upper end of the kettle body is smaller than the outer diameter of the lower end of the kettle body, and the outer side wall of the upper end of the kettle body and the outer side wall of the lower end of the kettle body are connected in a curved surface shape, The anti-spill kettle according to claim 1, characterized in that the weight of the handle is increased and installed so that the center of gravity of the kettle body approaches the side with the handle at the upper end of the kettle body.
4. An exhaust cavity is installed in the lid, the lower opening of the exhaust cavity can communicate with the storage cavity, and the upper opening of the exhaust cavity can communicate with the outside. The exhaust cavity forms the steam passage. The steam valve includes a steel ball cavity and a steel ball. The steel ball cavity is fixedly installed in the exhaust cavity. The lower opening of the steel ball cavity communicates with the lower opening of the exhaust cavity. The steel ball is located within the steel ball cavity and is movable in the axial direction of the steel ball cavity. A flow passage is installed in the circumferential direction of the steel ball within the steel ball cavity. The upper opening of the steel ball cavity communicates with the exhaust cavity. The storage cavity of the kettle body in a state of being placed on a horizontal plane can communicate with the exhaust cavity through the lower opening of the steel ball cavity, the flow passage, and the upper opening of the steel ball cavity. When the kettle body is overturned, the steel ball can roll to the upper opening of the steel ball cavity to close the upper opening of the steel ball cavity. The spill - proof kettle according to claim 1, characterized in that.
5. A steam flow passage is fixedly installed on the outer wall of the kettle body. The upper end opening of the steam flow passage communicates with the exhaust cavity, and the temperature detection system is connected to the lower end of the steam flow passage. The spill - proof kettle according to claim 4, characterized in that.
6. The installation of increasing the weight of the handle includes increasing the weight of the handle by increasing the density of the material of the handle, or increasing the weight of the handle by increasing the volume of the handle, or increasing the weight of the handle by adding a weight member into the handle. The spill - proof kettle according to claim 1, characterized in that.
7. A flow - limiting unit for reducing the end opening of the long - tube spout is installed at the end opening of the long - tube spout. The spill - proof kettle according to claim 1, characterized in that.
8. The flow - limiting unit is a baffle plate. The baffle plate is fixedly installed at the end opening of the long - tube spout and is arranged to cover a part of the end opening of the long - tube spout. The spill - proof kettle according to claim 7, characterized in that.
9. Two opposing telescopic sliding grooves are formed on the side wall of the lid portion, and one telescopic locking lever is slidably provided in each of the telescopic sliding grooves. On the inner wall of the upper opening of the storage cavity, two opposing locking grooves are formed. Each of the locking grooves corresponds to one telescopic locking lever, and the telescopic locking lever is inserted into the locking groove to fixedly connect the lid portion and the kettle body. The anti-spill kettle according to claim 1 is characterized in that.
10. In the upper opening of the storage cavity, a receiving boss is installed, and on the lid portion, a receiving annular surface is provided. When the lid portion closes the upper opening of the storage cavity, the receiving annular surface is located on the receiving boss. The anti-spill kettle according to claim 1 is characterized in that.