Bubble breaking structure and rice cooker having the same

Abstract

The invention provides a bubble breaking structure and an electric rice cooker having the same. The bubble breaking structure comprises a base and an air outlet pipe, wherein the base is used for being mounted on a cover plate of a pot cover; the air outlet pipe is detachably connected to the base so as to be mounted on the cover plate through the base; wherein the air outlet pipe comprises an air outlet portion, the air outlet portion comprises a containing cavity for bubbles to pass through and an air outlet, the containing cavity is communicated with the air outlet; the containing cavity and the air outlet are arranged along an air outlet direction of the air outlet pipe, and a minimum cross section of the containing cavity perpendicular to the air outlet direction is greater than a maximum cross section of the air outlet perpendicular to the air outlet direction; and the problem that the electric rice cooker in the prior art is prone to overflowing is solved by arranging the air outlet pipe on the cover plate of the pot cover of the electric rice cooker.

Description

Technical Field

[0001] The invention relates to the field of household appliances, and in particular to a bubble breaking structure and an electric rice cooker having the same. Background Art

[0002] When using an electric rice cooker, you will often encounter the problem of overflowing the pot, which greatly affects the user experience, pollutes the kitchen environment, and causes food waste.

[0003] In order to prevent the rice soup from overflowing, most of the current rice cookers reduce the heat output to suppress boiling, such as the following methods:

[0004] Electronic cookers are mostly controlled by duty cycle and other methods;

[0005] Mechanical cookers are mostly heated by using low-power heating wires. Although this method can prevent rice soup from overflowing from the pot, it can reduce heat output, which will lead to longer cooking time. Summary of the invention

[0006] The main purpose of the present invention is to provide a bubble breaking structure and an electric rice cooker having the same, so as to solve the problem that the electric rice cooker in the prior art is prone to overflowing.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a bubble breaking structure, which comprises: a base, which is used to be mounted on the cover plate of a pot lid; an air outlet pipe, which is detachably connected to the base so as to be mounted on the cover plate through the base; wherein the air outlet pipe comprises an air outlet portion, the air outlet portion comprises a accommodating cavity for bubbles to pass through and an air outlet, and the accommodating cavity is connected to the air outlet; the accommodating cavity and the air outlet are arranged along the air outlet direction of the air outlet pipe, and the minimum cross-section of the accommodating cavity perpendicular to the air outlet direction is larger than the maximum cross-section of the air outlet perpendicular to the air outlet direction.

[0008] Furthermore, the air outlet portion also includes a bubble breaking rib, which is arranged on the inner wall of the air outlet so as to break the bubbles passing through the air outlet.

[0009] Furthermore, there are multiple bubble-breaking ribs, which are spaced apart along the circumference of the air outlet, and each bubble-breaking rib extends along the air outlet direction of the air outlet.

[0010] Furthermore, there are multiple bubble-breaking ribs, which are divided into multiple groups. Each group of bubble-breaking ribs includes multiple bubble-breaking ribs. The multiple groups of bubble-breaking ribs are distributed along the air outlet direction of the air outlet. The multiple bubble-breaking ribs of each group of bubble-breaking ribs are distributed at intervals along the circumference of the air outlet; and each bubble-breaking rib extends along the air outlet direction of the air outlet.

[0011] Furthermore, the air outlet pipe includes at least two pipe wall components, and the at least two pipe wall components are spliced ​​along the circumference of the air outlet pipe to enclose the accommodating cavity and the air outlet.

[0012] Furthermore, the bubble breaking structure also includes a sealing strip, and a sealing strip is sandwiched between two adjacent tube wall components so as to seal the gap between the two adjacent tube wall components through the sealing strip.

[0013] Furthermore, at least one of the two adjacent tube wall components is provided with a sealing groove for installing the sealing strip, so that at least a portion of the corresponding sealing strip is embedded in the corresponding sealing groove.

[0014] Furthermore, a first positioning protrusion is provided on one of the two adjacent tube wall components, a first positioning groove matching with the first positioning protrusion is provided on the other of the two adjacent tube wall components, and the first positioning protrusion is inserted in the first positioning groove to position the two adjacent tube wall components.

[0015] Furthermore, the bubble breaking structure also includes a collar component, which is sleeved on the outside of at least two tube wall components to fix the at least two tube wall components.

[0016] Furthermore, at least two tube wall components are provided with external threads on their outer sides, and the inner wall of the collar component is provided with internal threads, so that the collar component is threadedly connected to the at least two tube wall components.

[0017] Furthermore, there are multiple air outlet parts, and the multiple air outlet parts are arranged in sequence along the air outlet direction of the air outlet pipe.

[0018] Furthermore, the inner wall surface of the accommodating cavity is a cylindrical surface, the inner wall surface of the air outlet is a conical surface, and along the air outlet direction, the cross section of the air outlet perpendicular to the air outlet direction gradually increases.

[0019] Furthermore, the base includes a flange portion and a tube body portion, the flange portion is provided with a mounting hole for a fastener to pass through, and the tube body portion is inserted into the air outlet pipe.

[0020] Furthermore, a second positioning protrusion is arranged on the outer wall of the tube body, a second positioning groove is arranged on the inner wall of the air outlet pipe, and the second positioning protrusion is clamped in the second positioning groove.

[0021] Further, the second positioning protrusion is an annular protrusion extending along the circumference of the tube body, and the second positioning groove is an annular groove extending along the circumference of the air outlet pipe.

[0022] Further, a third positioning groove is provided on the accommodating cavity, and the end of the tube body abuts against the third positioning groove; and / or a buffer groove is provided on the accommodating cavity, and the buffer groove is provided around the air outlet.

[0023] According to another aspect of the present invention, there is provided an electric rice cooker, which comprises a pot cover and the above-mentioned bubble breaking structure, wherein the pot cover comprises a cover plate, the bubble breaking structure is mounted on the cover plate, a plurality of exhaust holes are arranged on the cover plate, and the plurality of exhaust holes are connected to the accommodating cavity of the bubble breaking structure.

[0024] According to the technical solution of the present invention, the bubble breaking structure comprises a base for being mounted on a cover plate of a pot cover and an air outlet pipe detachably connected to the base, so that the air outlet pipe is mounted on the cover plate of the pot cover through the base; the air outlet pipe comprises an air outlet portion, the air outlet portion comprises a receiving cavity for bubbles to pass through and an air outlet connected to the receiving cavity, and the receiving cavity and the air outlet are arranged along the air outlet direction of the air outlet pipe; when food in the pot boils, food and bubbles overflowing from the pot will enter the receiving cavity of the air outlet pipe, wherein at least part of the food entering the receiving cavity will return to the pot under the guidance of the wall surface of the receiving cavity, and since the inner wall cross-section of the receiving cavity is smaller than the inner wall cross-section of the pot, the food entering the receiving cavity The bubbles in the pot will be destroyed by the pressure of the inner wall of the accommodating cavity and the mutual pressure between the bubbles, or will break to form small bubbles, or will fuse to form large bubbles; because the minimum cross section of the accommodating cavity perpendicular to the gas outlet direction is larger than the maximum cross section of the gas outlet perpendicular to the gas outlet direction, the small bubbles that are not destroyed but broken or the large bubbles that are fused in the accommodating cavity will be destroyed again by the pressure of the inner wall of the gas outlet and the mutual pressure between the bubbles after entering the gas outlet, thereby achieving the effect of preventing the food in the pot from overflowing; and the chamber temperatures of the accommodating cavity and the gas outlet are both lower than the bubble temperature, which can promote the bubble breaking to a certain extent. It can be seen that by using the present bubble breaking structure, the overflow phenomenon can be avoided, thereby solving the problem of the electric rice cooker in the prior art being prone to overflow.

[0025] In addition, the use of a bubble breaking structure can avoid reducing the cooking power to prevent overflow, thereby avoiding the problem of excessive cooking time; that is, the use of a bubble breaking structure can effectively prevent overflow while ensuring cooking efficiency and avoiding excessive cooking time.

[0026] The electric rice cooker of the present invention comprises a pot cover and the above-mentioned bubble breaking structure, wherein the pot cover comprises a cover plate, the bubble breaking structure is mounted on the cover plate, a plurality of exhaust holes are arranged on the cover plate, and the plurality of exhaust holes are communicated with the accommodating cavity of the bubble breaking structure. In addition to having the same technical effect as the bubble breaking structure, the electric rice cooker also facilitates bubble breaking and overflow prevention by arranging a plurality of exhaust holes on the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 An internal schematic diagram showing an optional foam breaking structure and a cover plate of a pot lid according to the present invention;

[0029] Figure 2 Shows Figure 1Schematic diagram of the explosion structure after the base of the bubble-breaking structure is removed;

[0030] Figure 3 Shows Figure 1 A schematic structural diagram of the first tube wall component of the bubble breaking structure;

[0031] Figure 4 Shows Figure 1 A schematic structural diagram of a second tube wall component of a bubble breaking structure;

[0032] Figure 5 Shows Figure 1 A schematic structural diagram of a base of a bubble breaking structure;

[0033] Figure 6 A schematic diagram of an explosion structure of an optional electric rice cooker according to the present invention is shown;

[0034] Figure 7 Shows Figure 6 A schematic diagram of the structure of the cover plate of the rice cooker lid.

[0035] The above drawings include the following reference numerals:

[0036] 100. Bubble breaking structure;

[0037] 10. base; 12. flange; 121. mounting hole; 13. tube body; 131. second positioning protrusion;

[0038] 20. Exhaust pipe;

[0039] 21. air outlet; 211. accommodating cavity; 212. air outlet; 213. bubble breaking rib; 214. third positioning groove; 215. buffer groove;

[0040] 23. Tube wall component; 231. Sealing groove; 232. First positioning protrusion; 233. First positioning groove; 234. Second positioning groove;

[0041] 30. sealing strip; 40. collar component; 50. sealing ring; 60. sealing gasket;

[0042] 200, electric rice cooker; 210, cover plate; 220, exhaust hole; 230, fastening hole; 240, inner pot; 250, heating component. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] The present invention provides a bubble breaking structure 100, please refer to Figures 1 to 6The bubble breaking structure 100 includes a base 10 and an air outlet pipe 20, the base 10 is used to be installed on the cover plate 210 of the pot cover; the air outlet pipe 20 is detachably connected to the base 10 so as to be installed on the cover plate 210 through the base 10; wherein the air outlet pipe 20 includes an air outlet portion 21, the air outlet portion 21 includes a accommodating cavity 211 for bubbles to pass through and an air outlet 212, the accommodating cavity 211 is connected to the air outlet 212; the accommodating cavity 211 and the air outlet 212 are arranged along the air outlet direction of the air outlet pipe 20, and the minimum cross-section of the accommodating cavity 211 perpendicular to the air outlet direction is greater than the maximum cross-section of the air outlet 212 perpendicular to the air outlet direction.

[0045] In the bubble breaking structure 100 of the present invention, the bubble breaking structure 100 includes a base 10 for being mounted on a cover plate 210 of a pot cover and an air outlet pipe 20 detachably connected to the base 10, so that the air outlet pipe 20 can be mounted on the cover plate 210 of the pot cover through the base 10; the air outlet pipe 20 includes an air outlet portion 21, the air outlet portion 21 includes a accommodating cavity 211 for bubbles to pass through and an air outlet 212 connected to the accommodating cavity 211, and the accommodating cavity 211 and the air outlet 212 are arranged along the air outlet direction of the air outlet pipe 20; when the food in the pot boils, the food and bubbles overflowing from the pot will enter the accommodating cavity 211 of the air outlet pipe 20, wherein at least part of the food entering the accommodating cavity 211 will return to the pot under the guidance of the wall surface of the accommodating cavity 211, because the inner wall of the accommodating cavity 211 The cross section is smaller than the cross section of the inner wall of the pot, and the bubbles entering the accommodating cavity 211 will be destroyed, or ruptured to form small bubbles, or merged to form large bubbles under the pressure of the inner wall of the accommodating cavity 211 and the mutual pressure between the bubbles; because the minimum cross section of the accommodating cavity 211 perpendicular to the gas outlet direction is larger than the maximum cross section of the gas outlet 212 perpendicular to the gas outlet direction, in this way, the small bubbles that are not destroyed and ruptured in the accommodating cavity 211 or the large bubbles that are merged will be destroyed again under the pressure of the inner wall of the gas outlet 212 and the mutual pressure between the bubbles after entering the gas outlet 212, thereby achieving the effect of preventing the food in the pot from overflowing; and the chamber temperatures of the accommodating cavity 211 and the gas outlet 212 are both lower than the bubble temperature, which can promote bubble breaking to a certain extent. It can be seen that by using the present bubble breaking structure 100, the overflow phenomenon can be avoided, thereby solving the problem that the electric rice cooker in the prior art is prone to overflow.

[0046] In addition, the use of the bubble breaking structure 100 can avoid reducing the cooking power to prevent overflow, thereby avoiding the problem of excessive cooking time; that is, the use of the bubble breaking structure 100 can effectively prevent overflow while ensuring cooking efficiency and avoiding excessive cooking time.

[0047] It should be noted that the gas outlet direction mentioned above is the direction in which the gas moves away from the pot.

[0048] Specifically, the air outlet portion 21 further includes a bubble breaking rib 213 , which is disposed on the inner wall of the air outlet 212 , so as to break the bubbles passing through the air outlet 212 through the bubble breaking rib 213 , thereby ensuring the bubble breaking effect of the bubble breaking structure 100 .

[0049] Optionally, there are multiple bubble-breaking ribs 213 , and each bubble-breaking rib 213 extends along the gas outlet direction of the gas outlet 212 to further ensure the bubble-breaking effect of the bubble-breaking structure 100 .

[0050] In this embodiment, one arrangement manner of the plurality of bubble-breaking ribs 213 is as follows: the plurality of bubble-breaking ribs 213 are distributed at intervals along the circumference of the air outlet 212 .

[0051] In this embodiment, another arrangement manner of the multiple bubble-breaking ribs 213 is: the multiple bubble-breaking ribs 213 are divided into multiple groups, each group of bubble-breaking ribs 213 includes multiple bubble-breaking ribs 213, the multiple groups of bubble-breaking ribs 213 are distributed along the air outlet direction of the air outlet 212, and the multiple bubble-breaking ribs 213 of each group of bubble-breaking ribs 213 are distributed at circumferential intervals along the air outlet 212.

[0052] Specifically, each bubble-breaking rib 213 is a plate structure, and the cross-sectional area of ​​each bubble-breaking rib 213 gradually decreases along the direction from the inner wall of the air outlet 212 to the center line of the air outlet 212 to ensure that the bubble-breaking rib 213 can cut through the bubbles; wherein the cross-sectional area of ​​each bubble-breaking rib 213 is the area of ​​the cross section of each bubble-breaking rib 213 perpendicular to the direction from the inner wall of the air outlet 212 to the center line of the air outlet 212.

[0053] Specifically, the air outlet pipe 20 includes at least two tube wall components 23, and the at least two tube wall components 23 are spliced ​​along the circumference of the air outlet pipe 20 to enclose a accommodating cavity 211 and an air outlet 212; this makes it easier to disassemble and assemble the air outlet pipe 20, and further facilitates the cleaning of the accommodating cavity 211 and the air outlet 212.

[0054] In this embodiment, if Figures 2 to 4 As shown, the air outlet pipe 20 includes two pipe wall components 23 , which are a first pipe wall component 23 and a second pipe wall component 23 . The first pipe wall component 23 and the second pipe wall component 23 are butted against each other to form a containing cavity 211 and an air outlet 212 .

[0055] In order to ensure the sealing effect of the air outlet pipe 20, the bubble breaking structure 100 further includes a sealing strip 30, and a sealing strip 30 is sandwiched between two adjacent tube wall parts 23, so as to seal the gap between the two adjacent tube wall parts 23 through the sealing strip 30. Specifically, at least one of the two adjacent tube wall parts 23 is provided with a sealing groove 231 for installing the sealing strip 30, so that the corresponding sealing strip 30 is sandwiched between the two adjacent tube wall parts 23 by embedding at least a part of the corresponding sealing strip 30 in the corresponding sealing groove 231.

[0056] In this embodiment, a sealing strip 30 is sandwiched between the first tube wall component 23 and the second tube wall component 23. Specifically, a sealing groove 231 is provided on the first tube wall component 23, and at least a portion of the sealing strip 30 is embedded in the sealing groove 231 to sandwich the sealing strip 30 between the first tube wall component 23 and the second tube wall component 23. Alternatively, a sealing groove may be provided on the second tube wall component 23, and at least a portion of the sealing strip 30 may be embedded in the sealing groove of the second tube wall component 23; or alternatively, a sealing groove may be provided on both the first tube wall component 23 and the second tube wall component 23, and the sealing groove of the first tube wall component 23 and the sealing groove of the second tube wall component 23 are butted to form a filling groove, and the sealing strip 30 is filled in the filling groove.

[0057] Optionally, two sealing strips 30 are sandwiched between the first tube wall component 23 and the second tube wall component 23; two sealing grooves 231 are provided on the first tube wall component 23, and the two sealing strips 30 are arranged in the two sealing grooves 231 in a one-to-one correspondence. Preferably, the two sealing grooves 231 are arranged on both sides of the first tube wall component 23 in a mirror-symmetrical manner with the tube center line of the first tube wall component 23 as the center.

[0058] In order to achieve the coordination between two adjacent tube wall parts 23, a first positioning protrusion 232 is provided on one of the two adjacent tube wall parts 23, and a first positioning groove 233 cooperating with the first positioning protrusion 232 is provided on the other of the two adjacent tube wall parts 23. The first positioning protrusion 232 is inserted in the first positioning groove 233 to position the two adjacent tube wall parts 23, thereby achieving a detachable connection between the two adjacent tube wall parts 23, so as to facilitate the disassembly and assembly of the air outlet pipe 20.

[0059] Optionally, the first positioning protrusion 232 is a cylindrical protrusion, and the first positioning groove 233 is a cylindrical groove.

[0060] In this embodiment, if Figures 2 to 4As shown, the first positioning protrusion 232 is arranged on the first tube wall component 23, and the first positioning groove 233 matching with the first positioning protrusion 232 is arranged on the second tube wall component 23, so as to realize the connection between the first tube wall component 23 and the second tube wall component 23 through the cooperation between the first positioning protrusion 232 and the first positioning groove 233.

[0061] Optionally, a plurality of first positioning protrusions 232 are provided on the first tube wall component 23, and a plurality of first positioning grooves 233 are provided on the second tube wall component 23. The plurality of first positioning protrusions 232 and the plurality of first positioning grooves 233 are provided in one-to-one correspondence, so that the first tube wall component 23 and the second tube wall component 23 are stably connected through the cooperation between each first positioning protrusion 232 and the corresponding first positioning groove 233.

[0062] Specifically, the bubble breaking structure 100 further includes a collar component 40 , which is sleeved on the outside of at least two tube wall components 23 to fix the at least two tube wall components 23 .

[0063] Specifically, at least two tube wall components 23 are provided with external threads on their outer sides, and the inner wall of the collar component 40 is provided with internal threads matching the external threads of at least two tube wall components 23 , so that the collar component 40 is threadedly connected to the at least two tube wall components 23 .

[0064] In order to ensure the anti-overflow effect of the bubble breaking structure 100, there are multiple air outlets 21, and the multiple air outlets 21 are arranged in sequence along the air outlet direction of the air outlet pipe 20. By setting multiple air outlets 21, since the minimum cross-section of the accommodating cavity 211 of each air outlet 21 perpendicular to the air outlet direction is larger than the maximum cross-section of its air outlet 212 perpendicular to the air outlet direction, and the maximum cross-section of the air outlet 212 of each air outlet 21 perpendicular to the air outlet direction is smaller than the minimum cross-section of the accommodating cavity 211 of the adjacent air outlet 21 perpendicular to the air outlet direction, in this way, the bubbles will be squeezed and broken continuously in the process of repeatedly passing through the accommodating cavity 211 with a larger cross-section and the air outlet 212 with a smaller cross-section. The food will be damaged, burst into small bubbles, or merge into large bubbles. Every time it passes through a accommodating cavity 211 or an air outlet 212, at least some of the bubbles will be destroyed, and at least some of the overflowed food will return to the pot under the guidance of the wall of the accommodating cavity 211 and / or the air outlet 212, thereby enhancing the bubble breaking effect to achieve a better anti-overflow effect; and, along the air outlet direction, the chamber temperature of the accommodating cavity 211 and the air outlet 212 of each air outlet portion 21 gradually decreases, which can further promote the bubble breaking.

[0065] Specifically, the air outlet pipe 20 includes a plurality of pipe sections, each of which has an air outlet portion 21. Preferably, a collar component 40 is sleeved on the outer side of each pipe section, so that the corresponding collar components 40 ensure that the plurality of pipe wall components 23 at each pipe section are fixed to each other.

[0066] In this embodiment, the inner wall surface of the accommodating cavity 211 is a cylindrical surface, and the inner wall surface of the air outlet 212 is a conical surface. Along the air outlet direction, the cross-section of the air outlet 212 perpendicular to the air outlet direction gradually increases, so that the bubbles can be squeezed to a greater extent and destroyed when they just enter the air outlet 212.

[0067] like Figure 5 As shown, the base 10 includes a flange portion 12 and a tube portion 13, and the flange portion 12 is provided with a mounting hole 121 for a fastener to pass through, so that the base 10 is mounted on the cover plate 210 of the pot cover by the fastener penetrating through the mounting hole 121. Optionally, there are multiple mounting holes 121, and the multiple mounting holes 121 are arranged at intervals around the circumference of the flange portion 12, and the multiple fasteners are correspondingly penetrated in the corresponding mounting holes 121.

[0068] The tube body 13 is inserted into the air outlet pipe 20 , and the tube cavity of the tube body 13 is connected with the accommodating cavity 211 and the air outlet 212 of the air outlet pipe 20 to achieve assembly between the base 10 and the air outlet pipe 20 .

[0069] Specifically, the tube body 13 is inserted into the tube section of the air outlet pipe 20 closest to the cover plate 210, so that the outer wall surface of the tube body 13 fits with the inner wall surface of the tube section closest to the cover plate 210. Optionally, the tube body 13 is inserted into the accommodating cavity 211 of the air outlet portion 21 of the air outlet pipe 20 closest to the cover plate 210, and the outer wall surface of the tube body 13 fits with the inner wall surface of the accommodating cavity 211 of the air outlet portion 21 closest to the cover plate 210.

[0070] In order to further ensure the connection effect between the base 10 and the air outlet pipe 20, a second positioning protrusion 131 is provided on the outer wall of the tube body 13, and a second positioning groove 234 is provided on the inner wall of the air outlet pipe 20. The second positioning protrusion 131 is clamped in the second positioning groove 234 to ensure a stable connection between the base 10 and the air outlet pipe 20.

[0071] Specifically, the second positioning groove 234 is arranged on the inner wall of the pipe section of the outlet pipe 20 closest to the cover plate 210 ; or, the second positioning groove 234 is arranged on the inner wall of the accommodating cavity 211 of the outlet portion 21 of the outlet pipe 20 closest to the cover plate 210 .

[0072] Optionally, the second positioning protrusion 131 is an annular protrusion extending along the circumference of the tube body 13 , and the second positioning groove 234 is an annular groove extending along the circumference of the air outlet pipe 20 .

[0073] Specifically, the second positioning groove 234 is formed by splicing at least two arcuate groove segments, and the at least two arcuate groove segments are arranged one-to-one on at least two tube wall components 23. In this embodiment, the second positioning groove 234 is formed by splicing two arcuate groove segments, and the two arcuate groove segments are respectively arranged on the first tube wall component 23 and the second tube wall component 23.

[0074] In this embodiment, a third positioning groove 214 is provided on the accommodating cavity 211, and the end of the tube body 13 abuts against the third positioning groove 214 to fix the end of the tube body 13. Specifically, the third positioning groove 214 is provided in the accommodating cavity 211 of the outlet portion 21 of the outlet pipe 20 closest to the cover plate 210.

[0075] In this embodiment, the bubble breaking structure 100 further includes a sealing ring 50, which is filled in the third positioning groove 214 so that the sealing ring 50 is sandwiched between the groove wall of the third positioning groove 214 and the end of the tube body 13. Specifically, the end of the tube body 13 abuts against the sealing ring 50.

[0076] Optionally, the third positioning groove 214 is an annular groove, and the third positioning groove 214 includes at least two positioning groove sections, which are arranged one-to-one on at least two tube wall components 23, and each positioning groove section is an arc groove. In this embodiment, the third positioning groove 214 is formed by splicing two positioning groove sections, and the two positioning groove sections are respectively arranged on the first tube wall component 23 and the second tube wall component 23.

[0077] In this embodiment, a buffer groove 215 is provided on the accommodating cavity 211, and the buffer groove 215 is provided around the air outlet 212; by providing the buffer groove 215, it is possible to effectively reduce the food and bubbles entering the air outlet 212 from the accommodating cavity 211. Specifically, the buffer groove 215 is provided in the accommodating cavity 211 of the air outlet portion 21 of the air outlet pipe 20 closest to the cover plate 210, and is located at one end of the accommodating cavity 211 close to the air outlet 212.

[0078] Optionally, the buffer groove 215 is an annular groove, and the buffer groove 215 is spaced apart from the third positioning groove 214, and the third positioning groove 214 is located outside the buffer groove 215. The buffer groove 215 includes at least two buffer groove sections, and the at least two buffer groove sections are arranged on at least two tube wall components 23 in a one-to-one correspondence, and each buffer groove section is an arc groove. In this embodiment, the buffer groove 215 is formed by splicing two buffer groove sections, and the two buffer groove sections are respectively arranged on the first tube wall component 23 and the second tube wall component 23.

[0079] In this embodiment, the bubble breaking structure 100 further includes a sealing gasket 60, which is sandwiched between the flange portion 12 of the base 10 and the cover plate 210, so as to seal the gap between the flange portion 12 and the cover plate 210 through the sealing gasket 60. Specifically, the sealing gasket 60 is an annular gasket, and the annular hole of the sealing gasket 60 is connected to the tube cavity of the tube body portion 13 of the base 10.

[0080] The present invention also provides an electric rice cooker 200, such as Figure 6 and Figure 7 As shown, the electric rice cooker 200 includes a pot cover and the above-mentioned bubble breaking structure 100, the pot cover includes a cover plate 210, the bubble breaking structure 100 is installed on the cover plate 210, and a plurality of exhaust holes 220 are provided on the cover plate 210, and the plurality of exhaust holes 220 are connected with the accommodating cavity 211 of the bubble breaking structure 100. The overflowing bubbles and food will first pass through the plurality of exhaust holes 220, and when passing through the exhaust holes 220, at least part of the food will return to the pot under the guidance of the hole wall of the exhaust hole 220, and at least part of the bubbles passing through the exhaust holes 220 will be destroyed or broken to form small bubbles or merged to form large bubbles due to the squeezing of the hole wall of the exhaust hole 220 and the squeezing between the bubbles, and the small bubbles formed by the breaking or the large bubbles formed by the fusion enter the accommodating cavity 211 connected with the plurality of exhaust holes 220; it can be seen that by providing the exhaust holes 220 on the cover plate 210, a certain bubble breaking effect and overflow prevention effect can also be achieved.

[0081] Specifically, the plurality of exhaust holes 220 are communicated with the annular hole of the sealing gasket 60 , so that the plurality of exhaust holes 220 are communicated with the accommodating cavity 211 of the bubble breaking structure 100 .

[0082] Optionally, the cover plate 210 is made of a heat-insulating material so that the cover plate 210 has a heat-insulating function.

[0083] Specifically, the cover plate 210 is also provided with fastening holes 230 for fasteners to pass through; there are multiple fastening holes 230, and the multiple fastening holes 230 are arranged one-to-one correspondingly to the multiple mounting holes 121, and the multiple fasteners are passed one-to-one in the corresponding mounting holes 121 and the corresponding fastening holes 230 to stably install the base 10 on the cover plate 210.

[0084] Specifically, the rice cooker 200 further includes an inner pot 240 for carrying food and a heating assembly 250 . The pot cover is disposed on the inner pot 240 , and the heating assembly 250 is disposed below the inner pot 240 to heat the food in the inner pot 240 .

[0085] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0086] In the bubble breaking structure 100 of the present invention, the bubble breaking structure 100 includes a base 10 for being mounted on a cover plate 210 of a pot cover and an air outlet pipe 20 detachably connected to the base 10, so that the air outlet pipe 20 can be mounted on the cover plate 210 of the pot cover through the base 10; the air outlet pipe 20 includes an air outlet portion 21, the air outlet portion 21 includes a accommodating cavity 211 for bubbles to pass through and an air outlet 212 connected to the accommodating cavity 211, and the accommodating cavity 211 and the air outlet 212 are arranged along the air outlet direction of the air outlet pipe 20; when the food in the pot boils, the food and bubbles overflowing from the pot will enter the accommodating cavity 211 of the air outlet pipe 20, wherein at least part of the food entering the accommodating cavity 211 will return to the pot under the guidance of the wall surface of the accommodating cavity 211, because the inner wall of the accommodating cavity 211 The cross section is smaller than the cross section of the inner wall of the pot, and the bubbles entering the accommodating cavity 211 will be destroyed, or ruptured to form small bubbles, or merged to form large bubbles under the pressure of the inner wall of the accommodating cavity 211 and the mutual pressure between the bubbles; because the minimum cross section of the accommodating cavity 211 perpendicular to the gas outlet direction is larger than the maximum cross section of the gas outlet 212 perpendicular to the gas outlet direction, in this way, the small bubbles that are not destroyed and ruptured in the accommodating cavity 211 or the large bubbles that are merged will be destroyed again under the pressure of the inner wall of the gas outlet 212 and the mutual pressure between the bubbles after entering the gas outlet 212, thereby achieving the effect of preventing the food in the pot from overflowing; and the chamber temperatures of the accommodating cavity 211 and the gas outlet 212 are both lower than the bubble temperature, which can promote bubble breaking to a certain extent. It can be seen that by using the present bubble breaking structure 100, the overflow phenomenon can be avoided, thereby solving the problem that the electric rice cooker in the prior art is prone to overflow.

[0087] In addition, the use of the bubble breaking structure 100 can avoid reducing the cooking power to prevent overflow, thereby avoiding the problem of excessive cooking time; that is, the use of the bubble breaking structure 100 can effectively prevent overflow while ensuring cooking efficiency and avoiding excessive cooking time.

[0088] The electric rice cooker 200 of the present invention comprises a pot cover and the above-mentioned bubble breaking structure 100, wherein the pot cover comprises a cover plate 210, the bubble breaking structure 100 is mounted on the cover plate 210, a plurality of exhaust holes 220 are arranged on the cover plate 210, and the plurality of exhaust holes 220 are communicated with the accommodating cavity 211 of the bubble breaking structure 100. In addition to having the same technical effects as the bubble breaking structure 100, the electric rice cooker 200 also facilitates bubble breaking and overflow prevention by arranging a plurality of exhaust holes 220 on the cover plate 210.

[0089] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0090] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0091] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bubble breaking structure, characterized in that: include: A base (10), the base (10) being used for being mounted on a cover plate (210) of a pot lid; an air outlet pipe (20), the air outlet pipe (20) being detachably connected to the base (10) so as to be mounted on the cover plate (210) through the base (10); The air outlet pipe (20) comprises an air outlet portion (21), the air outlet portion (21) comprises a containing cavity (211) for bubbles to pass through, an air outlet (212) and a bubble breaking rib (213), the containing cavity (211) being in communication with the air outlet (212); the containing cavity (211) and the air outlet (212) being arranged along the air outlet direction of the air outlet pipe (20), the minimum cross section of the containing cavity (211) perpendicular to the air outlet direction being larger than the maximum cross section of the air outlet (212) perpendicular to the air outlet direction; the bubble breaking rib (213) is arranged on the inner wall of the air outlet (212) so as to break the bubbles passing through the air outlet (212) by means of the bubble breaking rib (213); The air outlet pipe (20) comprises at least two pipe wall components (23), and the at least two pipe wall components (23) are spliced ​​along the circumference of the air outlet pipe (20) to enclose the accommodating cavity (211) and the air outlet (212).

2. The bubble breaking structure according to claim 1, characterized in that: There are a plurality of bubble-breaking ribs (213), and the plurality of bubble-breaking ribs (213) are distributed at intervals along the circumference of the air outlet (212), and each bubble-breaking rib (213) extends along the air outlet direction of the air outlet (212).

3. The bubble breaking structure according to claim 1, characterized in that: There are a plurality of bubble-breaking ribs (213), and the plurality of bubble-breaking ribs (213) are divided into a plurality of groups. Each group of bubble-breaking ribs (213) includes a plurality of bubble-breaking ribs (213). The plurality of bubble-breaking ribs (213) are distributed along the gas outlet direction of the gas outlet (212). The plurality of bubble-breaking ribs (213) in each group of bubble-breaking ribs (213) are distributed at intervals along the circumference of the gas outlet (212); and each bubble-breaking rib (213) extends along the gas outlet direction of the gas outlet (212).

4. The bubble breaking structure according to claim 1, characterized in that: The bubble breaking structure further comprises: A sealing strip (30) is sandwiched between two adjacent tube wall components (23) so as to seal the gap between the two adjacent tube wall components (23) through the sealing strip (30).

5. The bubble breaking structure according to claim 4, characterized in that: At least one of the two adjacent tube wall components (23) is provided with a sealing groove (231) for installing the sealing strip (30), so that at least a portion of the corresponding sealing strip (30) is embedded in the corresponding sealing groove (231).

6. The bubble breaking structure according to claim 1, characterized in that: One of the two adjacent tube wall components (23) is provided with a first positioning protrusion (232), and the other of the two adjacent tube wall components (23) is provided with a first positioning groove (233) that matches the first positioning protrusion (232), and the first positioning protrusion (232) is inserted into the first positioning groove (233) to position the two adjacent tube wall components (23).

7. The bubble breaking structure according to claim 1, characterized in that: The bubble breaking structure further comprises: A collar component (40) is sleeved on the outside of the at least two tube wall components (23) to fix the at least two tube wall components (23).

8. The bubble breaking structure according to claim 7, characterized in that: The outer sides of the at least two tube wall components (23) are provided with external threads, and the inner wall of the collar component (40) is provided with internal threads, so that the collar component (40) is threadedly connected to the at least two tube wall components (23).

9. The bubble breaking structure according to claim 1, characterized in that: There are a plurality of air outlet portions (21), and the plurality of air outlet portions (21) are arranged in sequence along the air outlet direction of the air outlet pipe (20).

10. The bubble breaking structure according to claim 1, characterized in that: The inner wall surface of the accommodating cavity (211) is a cylindrical surface, the inner wall surface of the air outlet (212) is a conical surface, and along the air outlet direction, the cross section of the air outlet (212) perpendicular to the air outlet direction gradually increases.

11. The bubble breaking structure according to claim 1, characterized in that: The base (10) comprises a flange portion (12) and a tube body portion (13); the flange portion (12) is provided with a mounting hole (121) for a fastener to pass through; and the tube body portion (13) is inserted into the air outlet pipe (20).

12. The bubble breaking structure according to claim 11, characterized in that: A second positioning protrusion (131) is provided on the outer wall of the tube body (13), a second positioning groove (234) is provided on the inner wall of the air outlet pipe (20), and the second positioning protrusion (131) is clamped in the second positioning groove (234).

13. The bubble breaking structure according to claim 12, characterized in that: The second positioning protrusion (131) is an annular protrusion extending along the circumference of the tube body (13), and the second positioning groove (234) is an annular groove extending along the circumference of the air outlet pipe (20).

14. The bubble breaking structure according to claim 11, characterized in that: The accommodating cavity (211) is provided with a third positioning groove (214), and the end of the tube body (13) abuts against the third positioning groove (214); and / or the accommodating cavity (211) is provided with a buffer groove (215), and the buffer groove (215) is arranged around the air outlet (212).

15. An electric rice cooker, comprising a pot cover, wherein the pot cover comprises a cover plate (210), characterized in that: The electric rice cooker further comprises a bubble breaking structure, wherein the bubble breaking structure is mounted on the cover plate (210), a plurality of exhaust holes (220) are provided on the cover plate (210), and the plurality of exhaust holes (220) are communicated with the accommodating cavity (211) of the bubble breaking structure, and the bubble breaking structure is the bubble breaking structure according to any one of claims 1 to 14.

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