Stirring paddle and cooking appliance

Abstract

The present application provides a stirring paddle and a cooking appliance The stirring paddle comprises: a first stirring shaft (11); a second stirring shaft (12) arranged to be coaxial with and spaced apart from the first stirring shaft (11); a first stirring blade (20) connected between the first stirring shaft (11) and the second stirring shaft (12); a second stirring blade (30) arranged on the first stirring blade (20). When the stirring paddle is at a lowest position, a projection of the first stirring blade (20) on a horizontal plane is inclined relative to a rotary axis of the first stirring shaft (11), and inclined relative to a projection of the second stirring blade (30) on the horizontal plane.

Description

[0001] Stirring Paddle and Cooking Appliance

[0002] Field

[0003] The present application relates to the technical field of small home appliances, and in particular, to a stirring paddle and a cooking appliance.

[0004] Background

[0005] A cooking appliance can perform stirring when cooking an ingredient. Therefore, electric stirring devices, blenders, or cooking machines have been designed. Thus, a cooking appliance that performs a stirring function can ensure that an ingredient is stirred evenly and achieve an ideal cooking effect.

[0006] When a cooking appliance such as a blender, cooking machine or food processor is in use, a stirring paddle stirs ingredients, causing them to slide along stirring blades of the stirring paddle and flip over accordingly. However, some ingredients are sticky and can form one or more lumps. A lump of ingredients is flipped over as a whole, resulting in uneven heating between the inner and outer parts of the ingredients of the lump, which leads to a poor stirring effect.

[0007] Summary

[0008] A main objective of the present application is to provide a stirring paddle and a cooking appliance, so as to solve the problem in the relevant art that a stirring paddle has a poor stirring effect.

[0009] To achieve the above objective, according to an aspect of the present application, a stirring paddle is provided, comprising: a first stirring shaft; a second stirring shaft arranged to be coaxial with and spaced apart from the first stirring shaft; a first stirring blade connected between the first stirring shaft and the second stirring shaft; a second stirring blade arranged on the first stirring blade; when the stirring paddle is at a lowest position, a projection of the first stirring blade on a horizontal plane is inclined relative to a rotary axis of the first stirring shaft, and inclined relative to a projection of the second stirring blade on the horizontal plane.

[0010] With the technical solution of the present application, when the first stirring shaft or the second stirring shaft drives the first stirring blade and the second stirring blade to stir a sticky ingredient, the sticky ingredient is stirred up. Since the projection of the first stirring blade on the horizontal plane is inclined relative to the rotary axis of the first stirring shaft, the ingredient slides transversally along the first stirring blade. Since the projection of the first stirring blade on the horizontal plane is inclined relative to the projection of the second stirring blade on the horizontal plane, the second stirring blade can slow down and block part of the ingredient from sliding, such that the ingredient that slides transversally along the first stirring blade slides at a higher speed before passing through the second stirring blade, at a smaller speed when passing through the second stirring blade, and at a higher speed after passing through the second stirring blade. With this way of different speeds, the stirred-up ingredient can be stretched, and lumps of the ingredient that have already formed can be broken up so as to separate the lumped ingredient. Thus, the separated ingredient is no longer heated as one or more lumps, which can increase uniformity of heating of the separated ingredient and improve the stirring effect. Therefore, the technical solution of the present application effectively solves the problem in the relevant art that a stirring paddle has a poor stirring effect.

[0011] Further, there is a smooth transition between the second stirring blade and the first stirring blade. With the second stirring blade and the first stirring blade transitioning smoothly between each other as described, there will not be stress concentrating between the second stirring blade and the first stirring blade, which helps increase the strength of connection between the second stirring blade and the first stirring blade, and enables the ingredients passing between the second stirring blade and the first stirring blade to slide smoothly, preventing ingredients from getting stuck here, and facilitating cleaning.

[0012] Further, the second stirring blade is inclined relative to the rotary axis of the first stirring shaft. Such inclined arrangement allows the second stirring blade to create a spiral effect during stirring, which can not only slow down and block some of the ingredient from sliding downward but also facilitate the sliding of some ingredient after the deceleration and blocking. This is helpful for stretching and breaking up the ingredient, improving the stirring uniformity.

[0013] Further, the first stirring blade comprises a first inclined section that forms a first angle with the rotary axis of the first stirring shaft, and the second stirring blade comprises a second inclined section that forms a second angle with the rotary axis of the first stirring shaft, the ratio between the first angle and the second angle being in the range of 3 to 15. As described, an ingredient that slides downward along the first inclined section slides at a greater speed before passing through the second stirring blade, at a smaller speed when passing through the second inclined section, and at a greater speed after passing through the second inclined section. This way of producing a large speed difference allows to effectively stretch the stirred-up ingredient, and more quickly break up lumps of the ingredient, thus accelerating the separation of the lumped ingredient.

[0014] Further, the second stirring blade is arranged at the first stirring blade in a manner of protruding towards the rotary axis of the first stirring shaft. The protruding second stirring blade as described above can cut an ingredient, especially when handling a sticky ingredient. For example, it can stretch lumps of the ingredient such that the stretched ingredient can be separated, which reduces formation of lumps due to sticking of the ingredient during stirring and improves the stirring effect.

[0015] Further, the second stirring blade comprises, from left to right, at least three blade sections connected sequentially, each blade section being inclined at a different angle relative to the first stirring blade. As each blade section of the second stirring blade has a different inclination angle, it means that during the stirring of the second stirring blade, different ingredients will be subject to forces of different directions. This multi-dimensional stirring force can effectively break a lumped ingredient, and even sticky ingredients can be fully dispersed, thereby improving the uniformity and effect of stirring. In addition, as different blade sections come into contact with the ingredient, the ingredient will experience alternating resistance levels: from higher resistance to lower resistance and then back to higher resistance. This change facilitates tumbling and separation of the ingredient while reducing the load on a motor and extending the service life of the stirring paddle.

[0016] Further, the second stirring blade is of an arc-shaped structure. The second stirring blade of an arc-shaped structure can form a smoother flow of ingredients during stirring, and ingredients can smoothly move along the arc-shaped surface of the blade, which prevents ingredients from accumulating on the second stirring blade, reduces stirring dead corners, and improves the stirring efficiency.

[0017] Further, a straight line perpendicular to the rotary axis of the first stirring shaft and passing through the central point of the stirring paddle is set as a reference line, and outer edges of the second stirring blade are arranged centrosymmetrically relative to the reference line. The second stirring blade centrosymmetrically arranged as described above allows to ensure the balance of the stirring paddle during rotation, reduce vibration during stirring, and improve stirring stability and efficiency.

[0018] Further, in the extension direction of the first stirring blade, the second stirring blade has a first side and a second side, which are opposite to each other, a first concave arc shape being arranged at a junction between an inner edge of the first stirring blade and the first side, a second concave arc shape being arranged at a junction between the inner edge of the first stirring blade and the second side. The provision of the above described first concave arc shape and second concave arc shape allows to increase the surface of contact between the first stirring blade and an ingredient, while reducing stirring resistance and improving the stirring efficiency. Further, the first stirring blade comprises a first inclined section that forms a first angle with the rotary axis of the first stirring shaft, and further comprises a third inclined section and a fourth inclined section, the third inclined section being connected between a first end of the first inclined section and the first stirring shaft, the fourth inclined section being connected between a second end of the first inclined section and the second stirring shaft, wherein the third inclined section forms a third angle with the rotary axis of the first stirring shaft, and the fourth inclined section forms a fourth angle with the rotary axis of the first stirring shaft. By means of the above-described angles at different positions and different inclined sections, the stirring path of the stirring paddle can be adjusted, so as to optimize the stirring effect of the stirring paddle on different ingredients and improve stirring flexibility and adaptability.

[0019] According to another aspect of the present application, a cooking appliance is provided, comprising an appliance body and a stirring paddle rotatably arranged on the appliance body, the stirring paddle being the stirring paddle described above.

[0020] Further, a bottom part of the appliance body comprises a spherical structure or a planar structure, and a bottom part of the first stirring blade has an arc-shaped surface adapted to the spherical structure or a plane adapted to the planar structure.

[0021] Description of the Drawings

[0022] The accompanying drawings, which constitute part of the specification of the present application, are used to provide a further understanding of the present application. Exemplary embodiments of the present application and their description are used to explain the present application and do not constitute an improper limitation of the present application. In the accompanying drawings:

[0023] Fig. 1 shows a schematic structural view in perspective of Embodiment 1 of an stirring paddle according to the present application;

[0024] Fig. 2 shows a schematic top view of the stirring paddle of Fig. 1 ;

[0025] Fig. 3 shows a schematic side view of the stirring paddle of Fig. 1 ;

[0026] Fig. 4 shows a schematic view in perspective of the stirring paddle of Fig. 1 when it’s inside an appliance body;

[0027] Fig. 5 shows a schematic view in perspective of a stirring paddle of an embodiment of a cooking appliance according to the present application when stirring an ingredient of class I; Fig. 6 shows a schematic view in perspective of a stirring paddle of an embodiment of a cooking appliance according to the present application when stirring an ingredient of class II;

[0028] Fig. 7 shows a schematic view in perspective of a stirring paddle of an embodiment of a cooking appliance according to the present application when stirring an ingredient of class II before stretching it;

[0029] Fig. 8 shows a schematic view in perspective of the stirring paddle of Fig. 7 when stirring an ingredient of class II after stretching it;

[0030] Fig. 9 shows a schematic structural view in perspective of Embodiment 2 of an stirring paddle according to the present application.

[0031] The above described drawings contain the following reference numerals:

[0032] 11 : first stirring shaft;

[0033] 12: second stirring shaft;

[0034] 20: first stirring blade; 21 : first inclined section; 22: third inclined section; 23: fourth inclined section; 24: first concave arc shape; 25: second concave arc shape; 26: through hole;

[0035] 30: second stirring blade; 31 : second inclined section; 311 : first side; 312: second side; 32: blade section;

[0036] 33: first rib section; 331 : first arc-shaped section; 332: second arc-shaped section; 34: second rib section;

[0037] L1 : rotary axis of the first stirring shaft; L2: reference line; A1 : first angle; A2: second angle; A3: third angle; A4: fourth angle;

[0038] 40: appliance body; 41 : ingredient of class I; 42: ingredient of class II.

[0039] Detailed Description of the Embodiments

[0040] Below, in connection with the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some, not all, of the embodiments of the present application. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0041] 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 the present specification, they indicate the presence of a feature, step, operation, part, component and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those skilled in the art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed herein, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in a drawing, it does not need to be further discussed in subsequent drawings.

[0043] As shown in Figs. 1 to 6, the present application provides a stirring paddle. Embodiment 1 of the stirring paddle comprises a first stirring shaft 11 , a second stirring shaft 12, a first stirring blade 20, and a second stirring blade 30. The second stirring shaft 12 is arranged to be coaxial with and spaced apart from the first stirring shaft 11 . The first stirring blade 20 is connected between the first stirring shaft 11 and the second stirring shaft 12. The second stirring blade 30 is arranged on the first stirring blade 20. When the stirring paddle is at a lowest position, the projection of the first stirring blade 20 on a horizontal plane is inclined relative to the rotary axis of the first stirring shaft 11 , and inclined relative to the projection of the second stirring blade 30 on the horizontal plane.

[0044] With the technical solution of Embodiment 1 , when the first stirring shaft 11 or the second stirring shaft 12 drives the first stirring blade 20 and the second stirring blade 30 to stir a sticky ingredient, the sticky ingredient is stirred up. Since the projection of the first stirring blade 20 on the horizontal plane is inclined relative to the rotary axis L1 of the first stirring shaft, the ingredient slides transversally along the first stirring blade 20. Since the projection of the first stirring blade 20 on the horizontal plane is inclined relative to the projection of the second stirring blade 30 on the horizontal plane, the second stirring blade 30 can slow down and block part of the ingredient from sliding downward, such that the ingredient that slides transversally along the first stirring blade 20 in the direction of the arrow pointing inclinedly downward in Figs. 5 and 6 slides at a greater speed before passing the second stirring blade 30, at a smaller speed when passing through the second stirring blade 30, and at a greater speed after passing through the second stirring blade 30. With this way of different speeds, the stirred-up ingredient can be stretched, and lumps of the ingredient that have already formed can be broken up so as to separate the lumped ingredient. The separated ingredient falls in the direction of the arrow pointing vertically downward in Fig. 6. Thus, the separated ingredient is no longer heated as one or more lumps, which can increase uniformity of heating of the separated ingredient and improve the stirring effect. Therefore, the technical solution of Embodiment 1 effectively solves the problem in the relevant art that the stirring paddle has a poor stirring effect.

[0045] In Embodiment 1 , the second stirring blade 30 is arranged in a twisted manner relative to the first stirring blade 20. Thus, lumps of ingredients can be better broken up, which prevents ingredients from sticking together, helps distribute ingredients evenly, and improves the cooking efficiency and the taste of food. In addition, by means of the twisted arrangement, the second stirring blade 30 can reduce the surface of direct contact with ingredients during stirring, thus reducing stirring resistance, reducing the load on the motor, and prolonging the service life of the stirring paddle.

[0046] In Embodiment 1 , the second stirring blade 30 is arranged at a middle position of the first stirring blade 20. The second stirring blade 30 is capable of slowing down and blocking part of an ingredient from sliding downward.

[0047] As shown in Figs.1 to 6, there is a smooth transition between the second stirring blade 30 and the first stirring blade 20. In this way, the connection between the second stirring blade 30 and the first stirring blade 20 is smooth, and no stress concentration occurs between them. This is beneficial for improving the connection strength between the second stirring blade 30 and the first stirring blade 20. Moreover, it enables the ingredients passing between the second stirring blade 30 and the first stirring blade 20 to slide smoothly, preventing ingredients from getting stuck here. It is also convenient for cleaning, greatly reducing the cleaning workload.

[0048] It should be noted that the above-described “smooth transition” means that the structure between the second stirring blade 30 and the first stirring blade 20 is of even thickness and the parts between the second stirring blade 30 and the first stirring blade 20 are coplanar. As shown in Figs. 1 to 6, the second stirring blade 30 is inclined relative to the rotary axis L1 of the first stirring shaft. Such inclined arrangement allows the second stirring blade 30 to create a spiral effect during stirring, which can not only slow down and block some of the ingredient from sliding downward but also facilitate the sliding of some ingredient after the deceleration and blocking. This is helpful for stretching and breaking up the ingredient, improving the stirring uniformity. It can break up not only lumps of ingredients of class I 41 , such as balls, pieces, strips, and sticks, but also lumps of ingredients of class II 42 such as lumps, dices, and thick sticky ingredients, meeting the requirements for stirring different types of ingredients.

[0049] As shown in Figs. 1 to 6, the first stirring blade 20 comprises a first inclined section 21 that forms a first angle A1 with the rotary axis L1 of the first stirring shaft, and the second stirring blade 30 comprises a second inclined section 31 that forms a second angle A2 with the rotary axis L1 of the first stirring shaft. The ratio between the first angle A1 and the second angle A2 is in the range of 3 to 15. In this way, an ingredient that slides downward along the first inclined section 21 slides at a greater speed before passing through the second stirring blade 30, at a smaller speed when passing through the second inclined section 31 , and at a greater speed after passing through the second inclined section 31. This way of producing a large speed difference allows to effectively stretch the stirred-up ingredient, and more quickly break up lumps of the ingredient, thus accelerating the separation of the lumped ingredient. In addition, the adaptability of the stirring paddle to ingredients with different viscosities is optimized, which improves the stirring effect. The above-described first angle A1 is in the range of 15° to 45°, preferably 15°, or 30°, or 45°.

[0050] The above-described ratio between the first angle A1 and the second angle A2 is preferably 3, or 5, or 6, or 8, or 10, or 12, or 15.

[0051] As shown in Figs. 1 to 6, the second stirring blade 30 is arranged at the first stirring blade 20 in a manner of protruding towards the rotary axis L1 of the first stirring shaft. In this way, the second stirring blade 30 increases the stirring surface of the first stirring blade 20, so that the stirring paddle can stir more ingredients by means of the second stirring blade 30 and the first stirring blade 20, which helps improve the stirring efficiency. In addition, as shown in Figs. 7 and 8, the protruding second stirring blade 30 can cut an ingredient, especially when handling a sticky ingredient, for example, can stretch lumps of ingredients of class II. The stretched ingredients of class II can be separated, which reduces formation of lumps due to sticking of the ingredients during stirring and improves the stirring effect.

[0052] As shown in Figs. 1 to 6, the second stirring blade 30 comprises, from left to right, at least three blade sections 32 connected sequentially. Each blade section 32 is inclined relative to the first stirring blade 20, and the inclination angle of each blade segment 32 relative to the first stirring blade 20 is different. Since each blade section 32 of the second stirring blade 30 has a different inclination angle, it means that during the stirring of the second stirring blade 30, different ingredients will be subject to forces of different directions. This multi-dimensional stirring force can effectively break a lumped ingredient, and even sticky ingredients can be fully dispersed, thereby improving the uniformity and effect of stirring. In addition, as different blade sections 32 come into contact with the ingredient, the ingredient will experience alternating resistance levels: from higher resistance to lower resistance and then back to higher resistance. This change facilitates tumbling and separation of the ingredient while reducing the load on a motor and extending the service life of the stirring paddle.

[0053] As shown in Figs. 1 to 6, the second stirring blade 30 is of an arc-shaped structure. The second stirring blade 30 of an arc-shaped structure can form a smoother flow of ingredients during stirring, and ingredients can smoothly move along the arc-shaped surface of the blade, which prevents ingredients from accumulating on the second stirring blade 30, reduces stirring dead corners, and improves the stirring efficiency.

[0054] In Embodiment 1 , the first stirring blade 20 has an outer edge arranged opposite to the second stirring blade 30. The outer edge is arc-shaped.

[0055] As shown in Figs. 1 to 6, when the stirring paddle is at the lowest position, the first stirring bade 20 has a lowest region. The straight line perpendicular to the rotary axis L1 of the first stirring shaft and passing through the center of the lowest region is set as a reference line L2. Outer edges of the second stirring blade 30 are arranged centrosymmetrically relative to the reference line L2. The second stirring blade 30 centrosymmetrically arranged can ensure the balance of the stirring paddle during rotation, reduce vibration during stirring, and improve stirring stability and efficiency, and is suitable for ingredients that need to be stirred for a long time.

[0056] It should be noted that the above-described lowest region is a point region, or a line region, or a surface area, and the outer edge of the second stirring blade 30 refers to an edge of the second stirring blade 30 oriented towards the rotary axis L1 of the first stirring shaft.

[0057] As shown in Figs. 1 to 6, in the extension direction of the first stirring blade 20, the second stirring blade 30 has a first side 311 and a second side 312, which are opposite to each other. A first concave arc shape 24 is arranged at the junction between an inner edge of the first stirring blade 20 and the first side 311. A second concave arc shape 25 is arranged at the junction between the inner edge of the first stirring blade 20 and the second side 312. The provision of the first concave arc shape 24 and second concave arc shape 25 allows to increase the surface of contact between the first stirring blade 20 and an ingredient while reducing stirring resistance and improving the stirring efficiency. Meanwhile, the provision of the first concave arc shape 24 and second concave arc shape 25 allows to ensure that an ingredient maintain close contact with and slide along the first stirring blade 20 and the second stirring blade 30 during stirring, which increases stirring stability.

[0058] As shown in Figs. 1 to 6, the first stirring blade 20 comprises a first inclined section 21 that forms a first angle A1 with the rotary axis L1 of the first stirring shaft, and further comprises a third inclined section 22 and a fourth inclined section 23. The third inclined section 22 is connected between a first end of the first inclined section 21 and the first stirring shaft 11 . The fourth inclined section 23 is connected between a second end of the first inclined section 21 and the second stirring shaft 12. In this embodiment, the third inclined section 22 forms a third angle A3 with the rotary axis L1 of the first stirring shaft, and the fourth inclined section 23 forms a fourth angle A4 with the rotary axis L1 of the first stirring shaft. Thus, by means of the above-described angles at different positions and different inclined sections, the stirring path of the stirring paddle can be adjusted, so as to optimize the stirring effect of the stirring paddle on different ingredients and improve stirring flexibility and adaptability. It’s suitable for stirring various liquid and solid ingredients.

[0059] In Embodiment 1 , the first stirring shaft 11 is provided with a D-shaped transmission hole. A D-shaped shaft of an electric motor is inserted into the D-shaped transmission hole so as to drive the first stirring shaft 11 to rotate. The second stirring shaft 12 is provided with a circular connection hole. The appliance body 40 is provided with a connection shaft. The circular connection hole is sleeved to the connection shaft, so that when the first stirring shaft 11 rotates, it drives the second stirring shaft 12 to rotate synchronously, so that the stirring paddle stirs an ingredient in the appliance body 40.

[0060] Embodiment 2 of the stirring paddle differs from Embodiment 1 of the stirring paddle in that the second stirring blade 30 and the first stirring blade 20 enclose a through hole 26. As shown in Fig. 9, in Embodiment 2, the second stirring blade 30 comprises a first rib section 33 and a second rib section 34 that are connected to each other. When the first stirring blade 20 and the second stirring blade 30 stir an ingredient, as the first rib section 33 and the second rib section 34 are both arranged to protrude relative to a lateral surface of the first stirring blade 20 and in opposite directions, when the first stirring blade 20 is subject to a force, the transmission path of the force can be changed, such that stress that may have concentrated at a certain point of the first stirring blade 20 can be more evenly distributed on the entire stirring paddle, which increases the rigidity of the whole and reduces stress concentration, thus reducing the risk that the first stirring blade 20 breaks due to fatigue and reducing the likelihood of damage. In the present embodiment, the provision of the through hole 26 helps the second stirring blade 30 and the first stirring blade 20 to turn over the ingredients during the stirring process, promoting the uniform heating and mixing of the ingredients. Meanwhile, it allows some ingredients to pass through the through hole 26, reducing the stirring resistance on the first stirring blade 20 and avoiding excessive stirring.

[0061] As shown in Fig. 9, in Embodiment 2, when the stirring paddle is at the lowest position, the first stirring blade 20 has a lowest region. The straight line perpendicular to the rotary axis L1 of the first stirring shaft and passing through the center of the lowest region is set as a reference line L2. The first rib section 33 and the second rib section 34 are arranged centrosymmetrically relative to the reference line L2. The above-described centrosymmetrical arrangement helps balance the distribution of force when the stirring paddle is rotating and reduce additional load of an unbalanced force on the first stirring blade 20 and the first stirring shaft 11 , thus improving the stirring paddle’s operating stability and stirring efficiency. It should be noted that the above-described “lowest region” is a point region, or a line region, or a surface region.

[0062] As shown in Fig. 9, in Embodiment 2, the first rib section 33 comprises a first arc-shaped section 331 and a second arc-shaped section 332. An end of the first arc-shaped section 331 is connected to the first stirring blade, and the other end of the first arc-shaped section

[0063] 331 is connected to an end of the second arc-shaped section 332, the other end of the second arc-shaped section 332 being connected to the second rib section 34. In the direction from one end of the first arc-shaped section 331 towards the other end of the second arc-shaped section 332, the first arc-shaped section 331 inclines towards a direction perpendicular to a lateral surface of the first stirring blade 20, and the second arc-shaped section 332 inclines towards a direction opposition to the direction of inclination of the first arc-shaped section 331. The above-described structure allows the stirring paddle to more effectively stir up an ingredient during stirring, reduces resistance during stirring, and improves the stirring efficiency, while reducing the power consumption of the stirring paddle. In addition, the inclined design of the first arc-shaped section 331 and the second arc-shaped section 332 changes the transmission path of a force, so that when the stirring paddle stirs an ingredient, the impact force from the ingredient on the second stirring blade 30 can be transmitted along the directions of inclination of the first arc-shaped section 331 and the second arc-shaped section 332 and more evenly distributed to the entire structure of the stirring paddle, which reduces stress concentration and thus improves the fatigue strength and durability of the stirring paddle. The arc-shaped design of the first arc-shaped section 331 and the second arc-shaped section

[0064] 332 helps reduce accumulation of ingredients in the appliance body so that ingredients can be more evenly distributed in the appliance body, improving cooking uniformity and efficiency. The present application further provides a cooking appliance. As shown in Figs. 5 to 8, an embodiment of the cooking appliance comprises an appliance body 40 and a stirring paddle rotatably arranged on the appliance body 40. The stirring paddle is a stirring paddle as described above. As the above-described stirring paddle can solve the problem in the relevant art that a stirring paddle has a poor stirring effect, the cooking appliance comprising the stirring paddle can solve the same technical problem.

[0065] As shown in Figs. 5 to 8, a bottom part of the appliance body 40 comprises a spherical structure, a bottom part of the first stirring blade 20 has an arc-shaped surface adapted to the spherical structure, and the above-described appliance body 40 comprises a cup body or a pot body. The appliance body 40 of a spherical structure helps gather ingredients, so that the first stirring blade 20 and the second stirring blade 30 can stir more ingredients, which can improve the stirring efficiency.

[0066] In other embodiments, a bottom part of the appliance body 40 comprises a planar structure, and a bottom part of the first stirring blade 20 has a plane adapted to the planar structure.

[0067] The cooking appliance in the embodiments is a stir-fry machine. In other embodiments, the cooking appliance is a dough maker, a mixer, a soy milk maker, a high-speed blender, or a multi-functional pot.

[0068] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the means or elements referenced must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present application. The directional words “inside” and “outside” refer to the inside and outside relative to the edges of the parts themselves.

[0069] For ease of description, spatially relative terms such as "above", "on top of', "on the upper surface of", "the above", etc. may be used here to describe the spatial positional relationship between a part or feature and other parts or features as shown in a drawing. It should be understood that spatially relative terms are intended to include different orientations of the part in use or operation in addition to the orientation described in the drawing. For example, if a part in a drawing is inverted, the part described as "above other parts or structures" or "on top of other parts or structures" will be positioned "below other parts or structures" or "beneath other parts or structures". Thus, the exemplary term "above" can include both "above" and "below". The part can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein are interpreted accordingly. In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present application.

[0070] What has been described above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

Claims1 . A stirring paddle characterized in that it comprises: a first stirring shaft (11); a second stirring shaft (12) arranged to be coaxial with and spaced apart from the first stirring shaft (11); a first stirring blade (20) connected between the first stirring shaft (11) and the second stirring shaft (12); a second stirring blade (30) arranged on the first stirring blade (20); when the stirring paddle is at a lowest position, a projection of the first stirring blade (20) on a horizontal plane is inclined relative to a rotary axis (L1) of the first stirring shaft, and inclined relative to a projection of the second stirring blade (30) on the horizontal plane.

2. The stirring paddle according to claim 1 , wherein there is a smooth transition between the second stirring blade (30) and the first stirring blade (20).

3. The stirring paddle according to any one of preceding claims, wherein the second stirring blade (30) is inclined relative to the rotary axis (L1) of the first stirring shaft.

4. The stirring paddle according to any one of preceding claims, wherein the first stirring blade (20) comprises a first inclined section (21) that forms a first angle (A1) with the rotary axis (L1) of the first stirring shaft, and the second stirring blade (30) comprises a second inclined section (31) that forms a second angle (A2) with the rotary axis (L1) of the first stirring shaft, a ratio between the first angle (A1) and the second angle (A2) being in the range of 3 to 15.

5. The stirring paddle according to any one of preceding claims, wherein the second stirring blade (30) is arranged at the first stirring blade (20) in a manner of protruding towards the rotary axis (L1) of the first stirring shaft.

6. The stirring paddle according to any one of preceding claims, wherein the second stirring blade (30) comprises, from left to right, at least three blade sections (32) connected sequentially, each blade section (32) being inclined at a different angle relative to the first stirring blade (20).

7. The stirring paddle according to any one of claims 1 to 6, wherein the second stirring blade (30) of an arc-shaped structure.

8. The stirring paddle according to any one of preceding claims, wherein when the stirring paddle is at the lowest position, the first stirring blade (20) has a lowest region, and a straight line perpendicular to the rotary axis (L1) of the first stirring shaft and passing through a center of the lowest region is set as a reference line (L2), outer edges of the second stirring blade (30) being arranged centrosymmetrically relative to the reference line (L2).

9. The stirring paddle according to any one of preceding claims, wherein in an extension direction of the first stirring blade (20), the second stirring blade (30) has a first side (311) and a second side (312), which are opposite to each other, a first concave arc shape (24) being arranged at a junction between an inner edge of the first stirring blade (20) and the first side (311), a second concave arc shape (25) being arranged at a junction between the inner edge of the first stirring blade (20) and the second side (312).

10. The stirring paddle according to any one of preceding claims, wherein the first stirring blade (20) comprises a first inclined section (21) that forms a first angle (A1) with the rotary axis (L1) of the first stirring shaft, and further comprises a third inclined section (22) and a fourth inclined section (23), the third inclined section (22) being connected between a first end of the first inclined section (21) and the first stirring shaft (11), the fourth inclined section (23) being connected between a second end of the first inclined section (21) and the second stirring shaft (12), wherein the third inclined section (22) forms a third angle (A3) with the rotary axis (L1) of the first stirring shaft, and the fourth inclined section (23) forms a fourth angle (A4) with the rotary axis (L1) of the first stirring shaft.

11. A cooking appliance comprising an appliance body (40) and a stirring paddle rotatably arranged on the appliance body (40), characterized in that the stirring paddle is the stirring paddle according to any one of claims 1 to 10.

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