CN116548827A - Stirring device and cooking utensil with same - Google Patents

Abstract

The invention provides a stirring device and a cooking utensil with the same, wherein the stirring device comprises: a first stirring member having a first rotation axis, the first stirring member including a lower return hook portion, an end of the lower return hook portion extending toward the first rotation axis; the second stirring piece is located the inboard of lower extension back hook portion, and the second stirring piece has the second axis of rotation, and the second stirring piece orientation is kept away from the direction of second axis of rotation and is extended, and wherein, second axis of rotation and first axis of rotation are parallel or coincide, and can rotate relatively between second stirring piece and the first stirring piece. According to the technical scheme, the problem that food taste difference is large due to uneven stirring in the related technology can be effectively solved.

Description

Stirring device and cooking utensil with same

Technical Field

The invention relates to the technical field of small household appliances, in particular to a stirring device and a cooking appliance with the same.

Background

In the related art, various menus are arranged in the cooking appliance with the frying function, and a user can automatically cook the cooking appliance only by putting food materials into the cooking appliance and selecting the corresponding menu, so that the use of the user is facilitated.

Specifically, such cooking appliances generally have stirring blades disposed in a cooking cavity and are driven to rotate by a motor to stir food so as to simulate a person to stir-fry food. However, the cooking appliance in the related art generally can only slightly stir food, and cannot realize the three-dimensional stir-frying function, and particularly, the cooking appliance is not uniform for long-strip-shaped (such as leaf vegetables) and granular food, so that the food taste difference of the same pot is large, and the use experience of a user is affected.

Disclosure of Invention

The invention mainly aims to provide a stirring device and a cooking utensil with the same, so as to solve the problem that the food taste difference is large due to uneven stirring in the related art.

In order to achieve the above object, according to a first aspect of the present invention, there is provided a stirring device comprising: a first stirring member having a first rotation axis, the first stirring member including a lower return hook portion, an end of the lower return hook portion extending toward the first rotation axis; the second stirring piece is located the inboard of lower extension back hook portion, and the second stirring piece has the second axis of rotation, and the second stirring piece orientation is kept away from the direction of second axis of rotation and is extended, and wherein, second axis of rotation and first axis of rotation are parallel or coincide, and can rotate relatively between second stirring piece and the first stirring piece.

By applying the technical scheme of the invention, the stirring device comprises a first stirring piece and a second stirring piece, wherein the second stirring piece extends towards a direction far away from the second rotation axis and can stir food in a containing cavity of the cooking utensil; the end of the lower return hook portion of the first stirring member extends toward the first rotation axis, which is capable of stirring food located outside the receiving cavity of the cooking appliance. Can relative rotation between first stirring piece and the second stirring piece, can meet or stagger between first stirring piece and the second stirring piece promptly, first stirring piece or second stirring piece can change the state of food when meeting between first stirring piece and the second stirring piece for food is holding the intracavity and is overturned, and then can evenly stir food, guarantees the uniformity of same pot food taste. Therefore, the technical scheme of the application can effectively solve the problem that the food taste difference is large due to uneven stirring in the related technology.

Further, the rotation direction of the first stirring member is opposite to the rotation direction of the second stirring member. The first stirring piece and the second stirring piece respectively apply acting forces in opposite directions to food, so that the food can be sufficiently stirred, and the taste of the food is further ensured.

Further, the rotation direction of the first stirring piece is the same as the rotation direction of the second stirring piece, and the rotation speed of the first stirring piece is different from the rotation speed of the second stirring piece. The first stirring piece and the second stirring piece rotate in the same direction at different speeds, and have speed difference, so that food can be overturned in the cooking cavity, and the cooking effect is further ensured.

Further, the distance between the end of the first stirring member and the end of the second stirring member in the radial direction of the coverage of the first stirring member is between 0 and 10mm. The distance can avoid the interference of the end parts of the first stirring piece and the second stirring piece when the first stirring piece and the second stirring piece meet or the food is clamped between the end parts of the first stirring piece and the second stirring piece to form a clamp, and meanwhile, the food in the accommodating cavity can be stirred. Meanwhile, the distance enables the end part of the first stirring piece and the end part of the second stirring piece to squeeze food between the end part and the end part of the second stirring piece, so that small-particle food can be scattered, and good stirring effect on various foods is guaranteed.

Further, the stirring device further comprises a rotating shaft portion, and the first stirring piece further comprises a connecting arm connected between the rotating shaft portion and the lower return hook portion. The lower extension hook part is connected to the rotating shaft part through the connecting arm and is driven by the rotating shaft part to rotate, and the lower extension hook has the advantage of simple structure.

Further, the lower extension hook part comprises a turning section and a stirring section, the turning section is located between the connecting arm and the stirring section, the stirring section comprises a bottom surface, a first side surface and a second side surface, the first side surface and the second side surface are arranged on two sides of the bottom surface, the first side surface is obliquely arranged relative to the bottom surface and forms an acute angle with the bottom surface, and the first side surface is a first food material contact surface. The first side is obliquely arranged relative to the bottom surface, so that food can rise along the first side for a certain distance and then fall back into the accommodating cavity, and stirring of the food is realized.

Further, the first stirring piece can rotate forwards and backwards, the second side face is a second food material contact face, the upper edge of the second side face is connected with the upper edge of the first side face, and the included angle between the second side face and the bottom face is larger than the included angle between the first side face and the bottom face. The two sides of the bottom surface are respectively provided with a first food material contact surface and a second food material contact surface, so that the first stirring piece can be contacted with the food material and push or stir the food material no matter forward or backward. Specifically, the first side surface can realize stirring of food materials; the second side can promote the food material antedisplacement, sets up the culinary art demand that two kinds of food material contact surfaces can satisfy different food materials.

Further, the cross-sectional height of the stirring section is in the range of 5mm to 15mm. The cross section height of the stirring section is in the range, so that the stirring effect can be ensured.

Further, the connecting arms are gradually arranged in an upward inclined manner from inside to outside, the included angle between the connecting arms and the horizontal direction is between 10 degrees and 60 degrees, and/or the cross section of each connecting arm is of a trapezoid structure with a small upper part and a large lower part. The connecting arm is arranged in such a shape that, after the food material or the seasoning is added by a user during cooking, the food material or the seasoning can slide into the accommodating cavity along the upper surface of the connecting arm and the two side walls of the trapezoid structure without being hung or retained on the connecting arm.

Further, the end of the lower return hook portion is provided with a thinned portion, the height of the cross section of which gradually decreases in a direction approaching the first rotation axis. Thus, food is effectively prevented from being blocked between the end part of the lower return hook part and the end part of the second stirring piece.

According to a second aspect of the present invention, there is provided a cooking appliance comprising a container having a receiving cavity and a stirring device disposed within the receiving cavity, the stirring device being the stirring device described above. The stirring device can effectively solve the problem that the food has large taste difference due to uneven stirring in the related art, and the cooking utensil with the stirring device also has the advantages.

Further, a ratio between a distance between an end of the second stirring member and a longitudinal center line of the accommodating chamber and a dimension of the lower return hook portion in a radial direction of the container is between 2/3 and 7/3. The ratio is in the range, so that the second stirring piece and the lower return hook part are ensured to have enough stirring length, and respective stirring functions are realized.

Further, the ratio between the distance between the end of the second stirring element and the longitudinal centre line of the receiving cavity and the radius of the mouth of the container is between 0.4 and 0.7. When the ratio is between 0.4 and 0.7, the stirring effect can be ensured under the condition that the food is less, and the lower return hook part and the second stirring piece can be ensured to be in good contact with the food, so that the stirring effect is improved.

Further, the container comprises a side wall extending in a vertical direction and a bottom wall comprising an arc-shaped section, the ratio between the dimension of the arc-shaped section in the radial direction of the container and the radius of the side wall being between 0.55 and 0.7. In the cooking process, the food positioned on the arc-shaped section is easy to roll to the middle position of the container along the arc-shaped section, namely, the food is gathered.

According to a third aspect of the present invention, there is provided a cooking appliance comprising a container having a receiving cavity and a stirring device provided in the receiving cavity, the stirring device being the stirring device described above, wherein the first side has an inclination angle in the range of 20 ° to 45 ° with respect to the inner wall of the container; and/or the inclination angle of the bottom surface with respect to the inner wall of the container is in the range of 3 ° to 10 °. The inclination angle of the first side surface relative to the inner wall of the container is within the above range, and the stirring effect can be ensured. The inclination angle of the bottom surface relative to the inner wall of the container is in the range, so that the stirring section can form effective line contact with the inner wall of the container, and friction between the stirring section and the inner wall of the container can be reduced to the minimum while the stirring effect on food is ensured.

According to a fourth aspect of the present invention, there is provided a cooking appliance comprising a container and a stirring device, the container having a receiving cavity, the stirring device being provided in the receiving cavity, the stirring device being as described above, wherein one side of the turn section corresponding to the first side is provided with a convex shape, the ratio between the distance between the intersection of the turn section and the stirring section and the bottom wall of the container and the depth of the container is between 0.4 and 0.6, and the ratio between the maximum dimension of the turn section protruding from the first side and the maximum lateral dimension of the turn section is between 0.6 and 0.8. During cooking, when part of food moving upwards along the first side moves to the inner wall of the outer convex part of the turning section, the food can move forwards and fall into the bottom of the container again under the action of the inner wall of the outer convex part, so that the food stirring function is realized. In the cooking process, the top surface of food is near the intersection of turning section and stirring section for lower extension back hook portion can play better stirring effect to food material.

According to a fifth aspect of the present invention, there is provided a cooking appliance comprising a container and a stirring device, the container having a receiving cavity, the stirring device being provided in the receiving cavity, the stirring device being as described above, wherein the first stirring member comprises a supporting body and a flexible coating member coated on the periphery of the supporting body, and a gap between the stirring section and an inner wall of the container is between-0.5 mm and 1.5mm. The clearance can avoid the frictional force between stirring section and the inner wall of container too big in the aforesaid within range, influences the normal rotation of first stirring piece, can guarantee simultaneously that the food that is close to or adheres to the inner wall of container can both be stirred, guarantees the culinary art effect.

According to a sixth aspect of the present invention, there is provided a cooking appliance comprising a container and a stirring device, the container having a receiving cavity, the stirring device being disposed in the receiving cavity, the stirring device being the stirring device described above, wherein the material of the first stirring member is metal or plastic, and the gap between the stirring section and the inner wall of the container is between 0.5mm and 2mm. The gap is in the range, so that interference between the stirring section and the inner wall of the container can be avoided, normal rotation of the first stirring piece is influenced, and food which is close to or adhered to the inner wall of the container can be stirred, so that the cooking effect is guaranteed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 shows a schematic perspective view of a first embodiment of a cooking appliance according to the present invention;

fig. 2 shows a schematic side sectional view of the cooking appliance of fig. 1;

fig. 3 shows an enlarged view at a of the cooking appliance of fig. 2;

fig. 4 shows an enlarged view at B of the cooking appliance of fig. 2;

FIG. 5 shows another angled side cross-sectional schematic view of the cooking appliance of FIG. 1;

fig. 6 shows a schematic cross-sectional view of the cooking appliance of fig. 1;

fig. 7 shows an enlarged view at C of the cooking appliance of fig. 6;

fig. 8 illustrates a schematic perspective view of a first stirring member of the cooking appliance of fig. 1;

FIG. 9 shows a schematic perspective view of the first stirring element of FIG. 8 at another angle;

fig. 10 is a schematic perspective view showing a first stirring member of a second embodiment of a cooking appliance according to the present invention;

fig. 11 shows a schematic side view of the first stirring element of fig. 10.

Wherein the above figures include the following reference numerals:

10. a container; 11. a receiving chamber; 12. a sidewall; 13. a bottom wall; 131. an arc section; 20. a first stirring member; 21. a lower extension hook part; 211. a turning section; 212. a stirring section; 2121. a bottom surface; 2122. a first side; 2123. a second side; 213. a thinning portion; 22. a connecting arm; 30. a second stirring member; 40. a rotating shaft portion;

l1, the distance between the end of the first stirring member and the end of the second stirring member in the radial direction of the coverage area of the first stirring member;

l2, the distance between the end of the second stirring element and the longitudinal centre line of the receiving cavity;

l3, the dimension of the lower return hook in the radial direction of the container;

l4, a gap between the stirring section and the inner wall of the container;

l5, the distance between the intersection of the turning section and the stirring section and the bottom wall of the container;

l6, depth of the container;

l7, the maximum size of the turning section protruding out of the first side surface;

l8, the maximum transverse dimension of the turning section;

l9, the dimension of the arc-shaped section along the radial direction of the container;

r1, radius of the mouth of the container;

r2, radius of the sidewall;

h1, the cross section height of the stirring section;

a1, an included angle between the second side surface and the bottom surface;

a2, an included angle between the first side surface and the bottom surface;

a3, the inclination angle of the first side surface relative to the inner wall of the container;

a4, the inclination angle of the bottom surface relative to the inner wall of the container;

a5, forming an included angle between the connecting arm and the horizontal direction.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Fig. 1 to 9 show a schematic structural view of a first embodiment of a cooking appliance according to the present invention. Wherein, cooking utensil includes agitating unit.

As shown in fig. 1, 2, 5, 8 and 9, a stirring device of a cooking appliance according to a first embodiment of the present application includes: a first stirring member 20 and a second stirring member 30. Wherein the first stirring member 20 has a first rotation axis, the first stirring member 20 includes a lower return hook portion 21, and an end portion of the lower return hook portion 21 extends toward the first rotation axis; the second stirring member 30 is located at the inner side of the lower return hook portion 21, the second stirring member 30 has a second rotation axis, the second stirring member 30 extends in a direction away from the second rotation axis, wherein the second rotation axis is parallel or coincident with the first rotation axis, and the second stirring member 30 and the first stirring member 20 can relatively rotate.

By applying the technical scheme of the embodiment, the stirring device comprises a first stirring piece 20 and a second stirring piece 30, wherein the second stirring piece 30 extends towards a direction far away from the second rotation axis and can stir food in the accommodating cavity 11 of the cooking utensil; the end of the lower return hook 21 of the first stirring member 20 extends toward the first rotation axis, which is capable of stirring food located outside the accommodating chamber 11 of the cooking appliance. Can rotate relatively between first stirring piece 20 and the second stirring piece 30, can meet or stagger between first stirring piece 20 and the second stirring piece 30 promptly, first stirring piece 20 or second stirring piece 30 can change the state of food when meeting between first stirring piece 20 and the second stirring piece 30, and then make food (especially be located the food of the tip of falling back hook portion 21 and the tip of second stirring piece 30) can overturn in holding chamber 11, and then can evenly stir the food, guarantees the uniformity of same pot food taste. Therefore, the technical scheme of the embodiment can effectively solve the problem that the food has large taste difference due to uneven stirring in the related technology.

The lower return hook 21 has a free end and a connection end connected to other components of the first stirring member 20, and the "end of the lower return hook 21" mentioned above is specifically the free end of the lower return hook 21. Correspondingly, the second stirring element 30 also has a connecting end and a free end, and the above-mentioned "the second stirring element 30 extends in a direction away from the second rotation axis" means that the free end of the second stirring element 30 is away from the second rotation axis with respect to the connecting end. The above-mentioned "inside and outside of the accommodation chamber 11" are both located in the space formed by the chamber walls of the accommodation chamber 11, wherein "inside" refers to a position near the center of the accommodation chamber 11 and "outside" refers to a position away from the center of the accommodation chamber 11.

Specifically, in the present embodiment, the rotation direction of the first stirring member 20 is opposite to the rotation direction of the second stirring member 30. The first stirring member 20 and the second stirring member 30 respectively apply forces in opposite directions to the food so that the food can be sufficiently stirred, thereby ensuring the taste of the food.

As shown in fig. 2 and 4, a distance L1 between the end of the first stirring member 20 and the end of the second stirring member 30 in the radial direction of the coverage of the first stirring member 20 is between 0 and 10mm (here, the distance refers to a distance along the radial direction of the coverage of the first stirring member 20 when the two meet). Specifically, since the first stirring member 20 is a rotating member, the stirring range thereof is annular or circular, and the above-mentioned "radial direction of the coverage of the first stirring member 20" refers to the radial direction of the annular or circular shape.

For the range of the distance L1 between the end of the first stirring member 20 and the end of the second stirring member 30 in the radial direction of the coverage of the first stirring member 20, the inventors conducted a cooking experiment, and specific experiments were recorded in the following table:

from the above experimental record, the distance L1 can avoid the interference between the ends of the first stirring member 20 and the second stirring member 30 or the jamming of the food between the ends of the first stirring member 20 and the second stirring member 30 when they meet, and the stirring range of the first stirring member 20 and the second stirring member 30 can cover most of the area of the bottom wall of the accommodating cavity 11, so as to ensure that the food in the accommodating cavity 11 can be stirred. Meanwhile, the distance L1 is away from the end of the first stirring member 20 and the end of the second stirring member 30, so that the food between the two ends can be extruded, and the small-particle food (such as shredded meat, eggs, etc.) can be scattered, thereby ensuring good stirring effect on various foods. Preferably, the distance L1 may be 5mm, 7mm or 10mm.

When the first stirring member 20 and the second stirring member 30 are both made of rubber, the distance L1 may be set to 0, and at this time, the end portion of the first stirring member 20 and the end portion of the second stirring member 30 are in transition fit when they meet.

As shown in fig. 1, 2, 6, 8 and 9, the stirring device further includes a rotation shaft portion 40, and the first stirring member 20 further includes a connection arm 22, the connection arm 22 being connected between the rotation shaft portion 40 and the lower return hook portion 21. The lower extension hook 21 is connected to the rotating shaft 40 through the connecting arm 22 and is driven to rotate by the rotating shaft 40, and has the advantage of simple structure.

Specifically, in the present embodiment, the first stirring member 20 and the second stirring member 30 may be driven to rotate in opposite directions by one motor in combination with the gear set. Of course, in the embodiment not shown in the drawings, the first stirring member and the second stirring member may be driven to rotate by two motors, respectively.

As shown in fig. 1, 2, 6, 8 and 9, the lower return hook 21 includes a turning section 211 and a stirring section 212, the turning section 211 is located between the connecting arm 22 and the stirring section 212, the stirring section 212 includes a bottom surface 2121, and a first side 2122 and a second side 2123 disposed on two sides of the bottom surface 2121, the first side 2122 is disposed obliquely relative to the bottom surface 2121 and forms an acute angle with the bottom surface 2121, and the first side 2122 is a first food contact surface. The first side 2122 is inclined relative to the bottom 2121, so that the food can rise a certain distance along the first side 2122 and then fall back into the accommodating cavity 11, and the food is stirred.

As shown in fig. 6 to 9, the first stirring member 20 can rotate forward and backward, the second side 2123 is a second food material contacting surface, the upper edge of the second side 2123 is connected to the upper edge of the first side 2122, and an included angle A1 between the second side 2123 and the bottom 2121 is larger than an included angle A2 between the first side 2122 and the bottom 2121. The first food material contact surface and the second food material contact surface are disposed on two sides of the bottom surface 2121, so that the first stirring member 20 can contact the food material and push or stir the food material no matter forward or backward. Specifically, the included angle A2 between the first side 2122 and the bottom 2121 is smaller, so that the food material can move up along the first side 2122 for a distance to roll down from the front side of the first side 2122 or roll down from the rear side of the first side 2122 beyond the stirring section 212 to realize stirring of the food material; the included angle A1 between the second side 2123 and the bottom 2121 is larger, so that the food material can be pushed to move forward. In a specific cooking process, food can be pushed by the first side 2122, food can be pushed by the second side 2123, or food can be pushed by the first side 2122 and the second side 2123 alternately according to characteristics (such as particle size and particle shape) of the food, so that cooking requirements of different food can be met.

As shown in fig. 6 to 9, the cross-sectional height H1 of the stirring section 212 is in the range of 5mm to 15mm. The cross-sectional height H1 is within the above range so that the food can be overturned over the stirring section 212 and tumbling can occur after the overturned over the stirring section 212 to secure the stirring effect. Preferably, the cross-sectional height H1 may be 5mm, 10mm or 15mm.

As shown in fig. 2 and 5, the connecting arm 22 is gradually inclined upward from inside to outside, and the included angle A5 between the connecting arm 22 and the horizontal direction is between 10 ° and 60 °. During cooking, after the user adds the food material or seasoning, the food material or seasoning can slide into the accommodating chamber 11 along the upper surface of the connecting arm 22 without being caught or retained on the connecting arm 22. Preferably, the included angle A5 may be 10 °, 35 °, or 60 °.

As shown in fig. 2 and 5, the cross section of the connecting arm 22 is a trapezoid structure with a smaller upper part and a larger lower part. During cooking, after the user has added the food or seasoning, the food or seasoning can slide into the receiving chamber 11 along the two side walls of the trapezoid without hanging or being retained on the connecting arms 22. Specifically, the height of the trapezoid structure is less than or equal to 5mm, and the inclination angle between the two side walls and the bottom wall of the trapezoid structure is less than or equal to 70 degrees.

In the present embodiment, the end of the lower return hook portion 21 is provided with a thinned portion whose cross-sectional height gradually decreases in a direction approaching the first rotation axis. That is, the dimension in the height direction of the thinned portion gradually decreases in the direction approaching the second stirring member 30, so that food can be effectively prevented from being caught between the end of the lower return hook portion 21 and the end of the second stirring member 30.

The present application also provides a cooking appliance, and fig. 1 to 9 show a schematic structural view of a first embodiment of the cooking appliance according to the present invention.

Specifically, the cooking appliance of the present embodiment includes a container 10 and a stirring device, the container 10 having a housing chamber 11, the stirring device being provided in the housing chamber 11, the stirring device being the stirring device described above. The stirring device can effectively solve the problem that the food has large taste difference due to uneven stirring in the related art, and the cooking utensil with the stirring device also has the advantages.

Specifically, when the stirring device is located in the accommodating chamber 11, the end of the lower return hook portion 21 extends toward the middle of the accommodating chamber 11; the free end of the second stirring member 30 extends in a direction away from the middle of the accommodating chamber 11.

As shown in fig. 2, in the present embodiment, the container 10 includes the side wall 12 and the bottom wall 13, the side wall 12 extends in the vertical direction, the bottom wall 13 includes the arc-shaped section 131, and the ratio between the dimension L9 of the arc-shaped section 131 in the radial direction of the container 10 and the radius R2 of the side wall 12 is between 0.55 and 0.7. I.e., the radial dimension L9 of the arcuate segment 131 is greater, when less food is present, the food in the arcuate segment 131 tends to roll along the arcuate segment 131 to a central location in the container 10, i.e., has a gathering effect on the food. Preferably, L9/R2 may be 0.55, 0.6, 0.65 or 0.7.

As shown in fig. 6, the ratio between the distance L2 between the end of the second stirring member 30 and the longitudinal center line of the accommodating chamber 11 and the dimension L3 of the lower return hook portion 21 in the radial direction of the container 10 is between 2/3 and 7/3. The ratio of L2 to L3 is in the above range, ensuring that both the second stirring member 30 and the lower return hook portion 21 have sufficient stirring lengths to achieve respective stirring functions. The effects of scattering and stir-frying can be better achieved for the scene with less food (such as shredded pork or an egg within 100 g). Preferably, the above ratio may be 2/3, 1/1 or 7/3.

As shown in fig. 2 and 6, the ratio between the distance L2 between the end of the second stirring member 30 and the longitudinal center line of the accommodation chamber 11 and the radius R1 of the mouth of the container 10 is between 0.4 and 0.7.

For the range of values of the ratio between the distance L2 between the end of the second stirring element 30 and the longitudinal centre line of the containing chamber 11 and the radius R1 of the mouth of the container 10, the inventors carried out cooking experiments, specific experimental records of which are given in the following table:

specifically, the above-mentioned "disturbance action" refers to pushing the food forward by the second stirring member 30, and the above-mentioned "scattering" refers to scattering and dispersing the block structure formed by the small-particle food materials into a plurality of small-particle food materials or scattering the food materials which can be solidified after being heated at normal temperature such as eggs and the like into a plurality of small-particle solid structures.

From the above experimental records, it is found that L2/R1 can exert a good scattering and stir-frying effect even in a scene with less food (for example, shredded meat or one egg within 100 g). While ensuring that the lower return hook 21 has a sufficient stirring length, and a corresponding stirring function can be achieved. Preferably, the above ratio may be 0.4, 0.55 or 0.7.

Specifically, in the present embodiment, the distance between the connection position of the rotating shaft portion 40 and the connecting arm 22 and the bottom wall of the container 10 is between 60mm and 100mm, so that stability in the process of driving the first stirring member 20 to rotate by the rotating shaft portion 40 can be ensured, large swing can not be generated due to too high distance, and meanwhile, the height of the stir-frying space can be ensured to the maximum extent, so that the amount of the cookable food can be increased.

As shown in fig. 6 to 9, the inclination angle A3 of the first side 2122 with respect to the inner wall of the container 10 is in the range of 20 ° to 45 °. The inclination angle A3 is in the above range, so that the food can move up along the first side 2122 and be turned over, and the phenomenon that the food cannot be turned over due to insufficient rising height or cannot rise along the first side 2122 is avoided, so that the food can be pushed forward, and the stirring effect of the food is guaranteed. Preferably, the inclination angle A3 may be 20 °, 30 °, 40 °, or 45 °.

As shown in fig. 6 to 9, the inclination angle A4 of the bottom surface 2121 with respect to the inner wall of the container 10 is in the range of 3 ° to 10 °. The inclination angle A4 is in the above range, so that the stirring section 212 can form effective line contact with the inner wall of the container 10, and friction between the stirring section 212 and the inner wall of the container can be reduced to the minimum while the stirring effect on food is ensured.

As shown in fig. 5, the turning section 211 is provided protruding at a side corresponding to the first side 2122, and a ratio between a distance L5 between an intersection of the turning section 211 and the stirring section 212 and the bottom wall of the vessel 10 and a depth L6 of the vessel 10 is between 0.4 and 0.6, and a ratio between a maximum dimension L7 of the turning section 211 protruding from the first side 2122 and a maximum lateral dimension L8 of the turning section 211 is between 0.6 and 0.8. During cooking, when a portion of the food moving up along the first side 2122 moves to the inner wall of the outer protrusion of the turning section 211, the food can move forward and fall back into the bottom of the container 10 under the action of the inner wall of the outer protrusion, so that the food stirring function is realized. Specifically, considering a recipe and a food amount of one meal which are common in a household cooking process, a ratio between a distance L5 between an intersection of the turning section 211 and the stirring section 212 and a bottom wall of the container 10 and a depth L6 of the container 10 is made to be between 0.4 and 0.6, and a top surface of the food is near the intersection of the turning section 211 and the stirring section 212, so that the lower return hook 21 can have a good stirring effect on the food. Preferably, L5/L6 may be 0.4, 0.45, 0.5 or 0.6, and L7/L8 may be 0.6, 0.7, 0.75 or 0.8.

Specifically, as shown in fig. 2 and 3, in the present embodiment, the material of the first stirring member 20 is metal or plastic, and the gap L4 between the stirring section 212 and the inner wall of the container 10 is between 0.5mm and 2mm. The gap L4 is within the above range, so that interference between the stirring section 212 and the inner wall of the container 10 can be avoided, normal rotation of the first stirring member 20 can be influenced, and food approaching or adhering to the inner wall of the container 10 can be stirred, thereby ensuring cooking effect. Preferably, the gap L4 may be 0.5mm, 1mm, 1.5mm or 2mm.

Of course, the first stirring member 20 comprises a flexible coating member which can also support the main body and cover the periphery of the main body, and the gap L4 between the stirring section 212 and the inner wall of the container 10 is between-0.5 mm and 1.5mm. Since the flexible covering has a certain deformability, it can be a slight interference fit with the inner wall of the container 10. The gap L4 is in the above range, so that the friction between the stirring section 212 and the inner wall of the container 10 is small, ensuring that the first stirring member 20 can normally rotate, and ensuring that the food near or adhered to the inner wall of the container 10 can be stirred, thereby ensuring the cooking effect. Preferably, the flexible covering may be rubber and the gap L4 may be-0.5 mm, 0mm, 0.5mm, 1mm or 1.5mm.

In this embodiment, the distance between the highest point of the first stirring member 20 and the mouth of the container 10 is between-15 mm and 15mm, so that the user can press the top position of the first stirring member 20 by hand to prevent falling off when lifting the container 10 to pour dishes.

Fig. 10 and 11 are schematic views showing the structure of a first stirring member of a second embodiment of the cooking appliance according to the present invention.

The cooking appliance of the second embodiment is different from the cooking appliance of the first embodiment only in the structure of the first stirring member. Specifically, as shown in fig. 10 and 11, the first side 2122 and the second side 2123 of the first stirring member 20 are symmetrically disposed with respect to the central plane of the first stirring member 20, wherein the first side 2122 and the second side 2123 can both enable food to roll down after moving up a distance therealong, and the effect of stirring the food can be achieved no matter whether the first stirring member 20 rotates forward or backward, so that the cooking effect is good.

As shown in fig. 10 and 11, the end of the lower return hook portion 21 is provided with a thinned portion 213, and the height of the cross section of the thinned portion 213 gradually decreases in the direction from outside to inside of the container 10. That is, the dimension of the thinned portion 213 in the height direction gradually decreases in the direction approaching the second stirring member 30, so that food can be effectively prevented from being caught between the end of the lower return hook portion 21 and the end of the second stirring member 30.

The present application also provides another cooking appliance (embodiment three), wherein the cooking appliance of embodiment three is different from the cooking appliance of embodiment one and embodiment two in that the stirring direction of the stirring member is different, and in embodiment three, the rotation direction of the first stirring member 20 is the same as the rotation direction of the second stirring member 30, and the rotation speed of the first stirring member 20 is different from the rotation speed of the second stirring member 30. The first stirring member 20 and the second stirring member 30 rotate in the same direction and at different speeds, and have a speed difference therebetween, so that food can be overturned in the cooking cavity, thereby ensuring the cooking effect.

In this embodiment, the cooking appliance is a multifunctional cooking appliance with a stir-frying function. Of course, in the embodiment not shown in the drawings, the cooking appliance may also be a product such as an electric cooker, a pressure cooker, a low-pressure rice cooker, a soymilk machine, a cooking machine, a dish frying machine, an electric stewpot, a multifunctional pot, etc.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (18)

1. A stirring device, characterized by comprising:

a first stirring element (20) having a first axis of rotation, the first stirring element (20) comprising a lower return hook (21), an end of the lower return hook (21) extending towards the first axis of rotation;

the second stirring piece (30) is positioned on the inner side of the lower return hook part (21), the second stirring piece (30) is provided with a second rotation axis, the second stirring piece (30) extends towards a direction away from the second rotation axis, the second rotation axis is parallel or coincident with the first rotation axis, and the second stirring piece (30) and the first stirring piece (20) can rotate relatively.

2. Stirring device according to claim 1, characterized in that the direction of rotation of the first stirring element (20) is opposite to the direction of rotation of the second stirring element (30).

3. Stirring device according to claim 1, characterized in that the direction of rotation of the first stirring element (20) is the same as the direction of rotation of the second stirring element (30), the rotation speed of the first stirring element (20) being different from the rotation speed of the second stirring element (30).

4. Stirring device according to claim 1, characterized in that the distance (L1) between the end of the first stirring element (20) and the end of the second stirring element (30) in the radial direction of the coverage of the first stirring element (20) is between 0 and 10mm.

5. A stirring device according to any one of claims 1 to 4, characterized in that the stirring device further comprises a rotating shaft portion (40), the first stirring member (20) further comprises a connecting arm (22), the connecting arm (22) being connected between the rotating shaft portion (40) and the lower return hook portion (21).

6. The stirring device according to claim 5, characterized in that the lower return hook (21) comprises a turning section (211) and a stirring section (212), the turning section (211) is located between the connecting arm (22) and the stirring section (212), the stirring section (212) comprises a bottom surface (2121) and a first side surface (2122) and a second side surface (2123) which are arranged on two sides of the bottom surface (2121), the first side surface (2122) is obliquely arranged relative to the bottom surface (2121) and forms an acute angle with the bottom surface (2121), and the first side surface (2122) is a first food contact surface.

7. The stirring device of claim 6, wherein the first stirring member (20) is capable of forward rotation and reverse rotation, the second side (2123) is a second food material contact surface, an upper edge of the second side (2123) is connected to an upper edge of the first side (2122), and an included angle (A1) between the second side (2123) and the bottom (2121) is larger than an included angle (A2) between the first side (2122) and the bottom (2121).

8. Stirring device according to claim 6, characterized in that the cross-sectional height (H1) of the stirring section (212) is in the range of 5mm to 15mm.

9. Stirring device according to claim 5, characterized in that the connecting arms (22) are arranged gradually upwards from inside to outside, the angle (A5) between the connecting arms (22) and the horizontal direction is between 10 ° and 60 °, and/or the cross section of the connecting arms (22) is of a trapezoid structure with a smaller top and a larger bottom.

10. Stirring device according to any one of claims 1 to 4, characterized in that the end of the lower return hook (21) is provided with a thinning (213), the height of the cross section of the thinning (213) gradually decreasing in a direction approaching the first axis of rotation.

11. Cooking appliance comprising a container (10) and a stirring device, characterized in that the container (10) has a receiving cavity (11), the stirring device being arranged in the receiving cavity (11), the stirring device being a stirring device according to any one of claims 1 to 10.

12. Cooking appliance according to claim 11, characterized in that the ratio between the distance (L2) between the end of the second stirring element (30) and the longitudinal centre line of the containing cavity (11) and the dimension (L3) of the lower return hook (21) in the radial direction of the container (10) is between 2/3 and 7/3.

13. Cooking appliance according to claim 11, characterized in that the ratio between the distance (L2) between the end of the second stirring element (30) and the longitudinal centre line of the containing cavity (11) and the radius (R1) of the mouth of the container (10) is between 0.4 and 0.7.

14. Cooking appliance according to claim 11, wherein the container (10) comprises a side wall (12) and a bottom wall (13), the side wall (12) extending in a vertical direction, the bottom wall (13) comprising an arc-shaped section (131), the ratio between the dimension (L9) of the arc-shaped section (131) in the radial direction of the container (10) and the radius (R2) of the side wall (12) being between 0.55 and 0.7.

15. Cooking appliance comprising a container (10) and a stirring device, characterized in that the container (10) has a receiving cavity (11), the stirring device being arranged in the receiving cavity (11), the stirring device being a stirring device according to any one of claims 6 to 8,

-the first side (2122) has an inclination angle (A3) with respect to the inner wall of the container (10) in the range of 20 ° to 45 °; and/or the number of the groups of groups,

the inclination angle (A4) of the bottom surface (2121) with respect to the inner wall of the container (10) is in the range of 3 DEG to 10 deg.

16. Cooking appliance comprising a container (10) and a stirring device, characterized in that the container (10) has a receiving cavity (11), the stirring device is arranged in the receiving cavity (11), the stirring device is a stirring device according to any one of claims 6 to 8, wherein the turning section (211) is arranged convexly corresponding to one side of the first side (2122), the ratio between the distance (L5) between the intersection of the turning section (211) and the stirring section (212) and the bottom wall of the container (10) and the depth (L6) of the container (10) is between 0.4 and 0.6, and the ratio between the maximum dimension (L7) of the turning section (211) protruding from the first side (2122) and the maximum lateral dimension (L8) of the turning section (211) is between 0.6 and 0.8.

17. Cooking appliance comprising a container (10) and a stirring device, characterized in that the container (10) has a receiving cavity (11), the stirring device is arranged in the receiving cavity (11), the stirring device is any one of the stirring devices according to claims 6 to 8, wherein the first stirring member (20) comprises a supporting body and a flexible cladding member cladding the periphery of the supporting body, and a gap (L4) between the stirring section (212) and the inner wall of the container (10) is between-0.5 mm and 1.5mm.

18. Cooking appliance comprising a container (10) and a stirring device, characterized in that the container (10) has a receiving cavity (11), the stirring device is arranged in the receiving cavity (11), the stirring device is a stirring device according to any one of claims 6 to 8, wherein the material of the first stirring piece (20) is metal or plastic, and a gap (L4) between the stirring section (212) and the inner wall of the container (10) is between 0.5mm and 2mm.