Blending cutter and food processor

Abstract

The present application discloses a blending cutter and a food processor. The blending cutter comprises a shaft and a blade. The blade comprises a head end and a tail end, the blade is twisted and both the head end and the tail end are connected to the shaft, forming a ring shape. Since the blade is twisted to form the ring shape and the shaft drives the blade to rotate, after the blade comes into contact with food ingredients, the food ingredients move upwards on a part of the surface of the blade, in a state of being raised, and move downwards with the other part of the surface of the blade, that is, the food ingredients move up and down in an axial direction of the shaft, such that the food ingredients are mixed more evenly and efficiently. When the blade is provided with a cutting edge, chopping efficiency is enhanced, the chopping becomes more uniform, and the mixing is more even. Furthermore, because the blade is ring-shaped, the blade has a higher strength, can stir food ingredients more easily and is less likely to break, and has a long service life.

Description

[0001]Blender and Food Processor Technical Field: This application relates to the field of small household appliances, particularly to blending blades and food processors. Background: A food processor, such as a meat grinder, includes a blending blade and a motor. The blending blade includes a blade shaft and blades assembled to the blade shaft. The motor and blade shaft are typically connected via a clutch. The motor drives the blade shaft to rotate, which in turn drives the blades to process food. In such food processors, the blades are typically bent into an arc in the horizontal plane, for example, forming an S-shaped blade. Technicians have discovered that curved blades (such as S-shaped blades) can result in uneven chopping and low chopping efficiency. Summary of the Invention: The present application aims to provide a blending blade and food processor that can chop food evenly and efficiently. This application provides a blending blade. The blending blade includes a blade shaft and a blade. The blade includes a head end and a tail end. The blade is twisted, and both the head end and the tail end are connected to the blade shaft to form a ring. As described above, because the blade is twisted to form a ring, the blade shaft drives the blade to rotate. Upon contact with food, the blade cuts into the food at a gradually changing angle. The food moves upward on one portion of the blade surface, appearing lifted, and then moves downward on another portion. Ultimately, as the blade is rotated by the shaft, the food is stirred circumferentially and continuously flipped up and down, resulting in more uniform and efficient mixing. If the blade is equipped with a cutting edge, chopping efficiency and uniform mixing are increased. Furthermore, because the blade is twisted, the turbulence effect during rotation is enhanced, further improving mixing effectiveness and efficiency. Finally, the ring-shaped blade provides increased strength, better stirring ability, and resistance to breakage, resulting in a longer service life. In some embodiments, the base of the blade is downwardly inclined and curved. As set up above, since the bottom of the blade is tilted downward and is arc-shaped, the food is in more complete contact with the blade. Ultimately, the mixing efficiency is high and the mixing is more uniform. When the blade is provided with a blade edge, the mixing blade can also chop more uniformly and the chopping efficiency is higher. In some embodiments, the connection position between the head end and the blade shaft and the connection position between the tail end and the blade shaft are both located in the same radial plane of the blade shaft.With the above settings, since the connection positions of the head end and the tail end to the cutter shaft are both located in the same radial plane of the cutter shaft, it is more convenient for the cutter blade to cut into the food material at a gradually changing inclination angle when contacting the food material, causing the food material to rise or press down the food material. In some embodiments, the cutter blade is horizontally arranged as a whole. With the above settings, since the cutter blade is horizontally arranged as a whole, in this way, it is more beneficial for the food material to move upward or downward along the surface of the cutter blade. As a result, the food material contacts the cutter blade more fully. Eventually, the mixing efficiency is high and the mixing is more uniform. When the cutter blade is provided with a cutting edge, the mixing cutter can also cut more evenly and has a higher cutting efficiency. In some embodiments, the cutter blade includes an end portion. In the top view direction of the mixing cutter, the distance from the end portion to the rotation center of the cutter shaft is A, and the maximum width of the area enclosed by the cutter blade is a, where a < A. With the above settings, since a < A, in this way, while satisfying the conditions that the food material is mixed more evenly and has a high mixing efficiency, the strength of the cutter blade is higher, it can stir the food material more and is not easily broken, and has a long service life. In addition, because a < A, the cutter blade is flat. Compared with a > A, more parts of the cutter blade can contact the food material during rotation, the food material is mixed more evenly, and the mixing efficiency is also high. Of course, when the cutter blade is provided with a cutting edge, it also cuts more evenly and has a higher cutting efficiency. In some embodiments, a > A / 2. With the above settings, since A / 2 < a < A, in this way, the strength of the cutter blade is higher, it can stir the food material more and is not easily broken, has a long service life, more parts can contact the food material, the mixing efficiency is higher, and the mixing is more uniform. When the cutter blade is provided with a cutting edge, it also cuts more evenly and has a higher cutting efficiency. In some embodiments, the cutter blade is formed by twisting a strip-shaped member with a constant width. The width of the strip-shaped member is w, where 15 mm < w < 20 mm. With the above settings, since 15 mm < w < 20 mm, the cutter blade has a sufficient contact area with the food material, ensuring a high food material mixing efficiency and uniform mixing. When the cutter blade is provided with a cutting edge, it cuts more evenly and has a higher cutting efficiency. In some embodiments, the cutter blade is twisted once and twisted 180 degrees to form a Möbius ring.In the above arrangement, since the blades are Möbius strips, a single blade can better enable the food to move up and down along the surface of the strip, resulting in more uniform and efficient mixing. Furthermore, when at least two blades are connected to a blade shaft, the blade on one side cuts into the food at a gradual angle upon contact, causing the food to rise along the blade surface. Simultaneously, the blade on the other side engages the food with a downward pressure, ultimately resulting in more uniform mixing and higher efficiency. Furthermore, if the blades are equipped with cutting edges, this can further enhance uniform chopping and improve efficiency. In some embodiments, the blades are twisted n times, 1MnM5. In this arrangement, the blades have fewer twisting points, resulting in less load on the food processor's motor and easier processing. Because twisted areas create resistance during blade rotation, a large number of twisted areas results in greater resistance, placing a greater load on the food processor's motor and shortening its lifespan. Furthermore, too many twisted areas complicate the structure and make machining difficult. In some embodiments, when n=1, the blade is twisted at the midpoint of its circumference and folds back toward the blade shaft. The folded-back area forms the blade's end. The width of the blade's projection on a vertical plane gradually widens from the leading end and / or the trailing end toward the blade's end. In the above configuration, since n=1 and the width of the projection formed by the blade on the vertical plane gradually widens from the leading end and / or the trailing end toward the leading end, after the blade cuts into the food, the contact area between the blade and the food gradually increases as the mixing blade rotates, thereby achieving more uniform and efficient mixing and chopping. In the case of at least two blades, more food is lifted or pressed down, resulting in more uniform and efficient mixing. In the case of blades equipped with cutting edges, chopping is more uniform and more efficient. In some embodiments, there are at least two blades, staggered relative to each other in the circumferential direction of the blade shaft.As described above, since there are at least two blades staggered circumferentially around the blade shaft, this arrangement, combined with the blade structure, allows the blades to rotate with the shaft. Upon contact with food, some blade surfaces cause the food to move upward, lifting it up, while others contact and press it downward. This causes the food to move up and down axially along the shaft, resulting in more uniform and efficient mixing. If all blades are equipped with cutting edges, chopping efficiency, uniform chopping, and mixing are enhanced. In some embodiments, there are at least two blades, with at least one blade having a cutting edge at its base; alternatively, none of the blades are equipped with cutting edges. In the above configuration, if some blades are equipped with blades and others are not, the blades equipped with blades perform the chopping function, while the blades without blades perform the stirring function. This combined chopping and stirring not only expands application scenarios but also improves chopping and mixing efficiency, and also achieves more uniform chopping and mixing. If all blades are not equipped with blades, all blades perform the stirring function, resulting in a good mixing effect and high mixing efficiency. In some embodiments, there are two blades, spaced apart axially along the blade shaft, with the projections of the two blades on a horizontal plane mirroring the blade shaft. As described above, since there are two blades, the projections of the two blades on the horizontal plane are mirror images relative to the blade shaft. During the rotation of the mixing blade, when the blade rotates (for example, clockwise), the blade on one side will cut into the food at a gradual inclination angle when it comes into contact with the food, causing the food to be in a state of being lifted along the surface of the blade. At the same time, the blade on the other side will come into contact with the food in a downward pressure form, pressing the food downward. As a result, the two blades cooperate with each other to cause the food to be in an unstable state (i.e., in an up and down motion) in the axial direction of the blade shaft, resulting in high mixing efficiency and uniform mixing. When the blade is provided with a blade edge, the chopping efficiency is higher and the chopping effect is better. In some embodiments, the height difference between the two blades in the axial direction of the blade shaft is h, 5mm. <h<20mm。 oWith the above settings, since 5mm < h < 20mm, and in combination with the structure of the cutter blade (for example, the cutter blade is a Möbius ring), it is beneficial to mix or chop larger food ingredients, such as vegetables, etc. On the other hand, an embodiment of the present application discloses a food processor. The food processor includes any one of the foregoing stirring knives, a stirring bowl, a bowl lid, and a main body. The bowl lid covers the bowl mouth of the stirring bowl, and the motor of the main body drives the stirring knife to rotate in the stirring bowl. With the above settings, the food processor at least has the beneficial effects brought by the stirring knife. Brief Description of the Drawings FIG. 1 is an exploded view of a food processor in the related art; FIG. 2 is a sectional view of a food processor shown according to an embodiment of the present application, and the food processor includes a first stirring knife; FIG. 3 is a perspective view of the first stirring knife in FIG. 2; FIG. 4 is a front view of a second stirring knife shown according to an embodiment of the present application; FIG. 5 is a top view of the stirring knife shown in FIG. 4; FIG. 6 is a front view of a third stirring knife shown according to an embodiment of the present application. Specific Embodiments Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are only examples of devices consistent with some aspects of the present application detailed in the appended claims. The terms used in the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the present application should be the ordinary meanings understood by those of ordinary skill in the field to which the present application belongs. The terms "first", "second" and similar terms used in the specification and claims of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not indicate a quantity limitation, but indicate that there is at least one. "Multiple" or "several" means two or more. Unless otherwise indicated, terms such as "front part", "rear part", "lower part" and / or "upper part" are only for convenience of description, and are not limited to a position or a spatial orientation.Words such as “including” or “comprising” and the like mean that the elements or objects preceding “including” or “comprising” include the elements or objects listed after “including” or “comprising” and their equivalents, and do not exclude other elements or objects. Words such as “connected” or “connected” are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in the specification of this application and the appended claims, the singular forms “a”, “an”, “said” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the terms "and / or" as used herein refer to and encompass any or all possible combinations of one or more associated listed items. Referring to FIG. 1 , in the related art, a food processor is a meat grinder, comprising a mixing blade 10 (here, a meat grinder assembly), a mixing bowl 20, a bowl cover 30, and a main unit 40. The bowl cover 30 covers the mixing bowl 20. The mixing blade 10 comprises a blade shaft 1 and blades 2 arranged circumferentially around the blade shaft 1. Each blade 2 is arc-shaped relative to the blade shaft 1. There are four blades 2, forming two staggered S-shaped blades. The mixing blade 10 is located within the mixing bowl 20. The main unit 40 is placed on the bowl cover 30. The motor of the main unit 40 is connected to the blade shaft 1. By driving the blade shaft 1, the mixing blade 10 rotates within the mixing bowl 20, thereby chopping ingredients, for example, mincing meat into minced meat or blending vegetables into vegetable puree. This food processor suffers from uneven chopping and low chopping efficiency. To address at least one of the aforementioned issues, embodiments of the present application disclose a blending blade 10 and a food processor. The following describes the relevant structure of the blending blade 10 in conjunction with the relevant drawings. First, it should be noted that the first blending blade 10 shown in Figures 2 and 3 is different from the second blending blade 10 shown in Figures 4 and 5 in that both blades of the first blending blade 10 are equipped with blade edges, while only one blade of the second blending blade 10 is equipped with a blade edge. The third blending blade 10 shown in Figure 6 is different from the first and second blending blades 10 in that the two blades 2 have a height difference h in the axial direction of the blade shaft 1. Of course, in the third blending blade 10, both blades 2 may be equipped with blade edges, or only one blade 2 may be equipped with a blade edge.Based on the aforementioned differences, unless otherwise specified, the described structure can be applied to all three types of mixing blades 10. Referring to Figures 3 and 5 in conjunction with Figures 2, 4, and 6, the mixing blade 10 includes a blade shaft 1 and blades 2 staggered relative to each other along the circumference of the blade shaft 1. The number of blades 2 is not limited to two as shown. The blades 2 are twisted once, 180 degrees, with the leading end 21 and trailing end 22 connected to the blade shaft 1 to form a ring. Based on the beneficial effects achieved by twisting the blades 2 as described below, those skilled in the art will appreciate that the blades 2 are twisted n times, 180 degrees each time, for example, n = 1 (180-degree twist), 2 (360-degree twist), 3 (540-degree twist), etc. The blades 2 are twisted 180 degrees, such that the trailing end 22 is twisted 180 degrees relative to the leading end 21. However, those skilled in the art will appreciate that in some embodiments, the blade 2 may not be twisted 180 degrees so that the tail end 22 is not twisted 180 degrees relative to the head end 21, but rather twisted 90 degrees, as long as the blade can cut into the food at a gradually changing angle when it contacts the food. As described above, since the blade 2 is twisted to form a ring, for a single blade 2, the blade shaft 1 drives the blade 2 to rotate. Upon contact with the food, the blade 2 cuts into the food at a gradually changing angle. The food moves upward on a portion of the blade 2 surface, appearing to be lifted, and then moves downward on another portion of the blade 2 surface. Ultimately, as the blade 2 is rotated by the blade shaft 1, the food is agitated circumferentially by the blade 2 and continuously flipped up and down by the blade 2, resulting in more uniform and efficient mixing. When the blade is equipped with a cutting edge, the chopping efficiency is improved, the chopping is more uniform, and the mixing is more uniform. In addition, since the blade is twisted, the turbulence effect is increased during the rotation of the blade, further improving the mixing effect and the mixing efficiency. Finally, since the blade is annular, the blade is stronger, can stir the food more easily without being broken, and has a long service life.If there are at least two blades 2, staggered about the circumference of the blade shaft 1, the surfaces of some blades 2 cause the food to move upward, lifting it up, while the surfaces of other blades 2 contact and press the food downward, causing the food to move up and down in the axial direction of the blade shaft 1. This results in more uniform and efficient mixing. If the blades 2 are equipped with cutting edges, chopping efficiency, chopping, and mixing are increased. Furthermore, the annular shape of the blades 2 provides increased strength, better agitation, and resistance to breakage, resulting in a longer service life. While the above description uses two blades 2 as an example, skilled artisans will appreciate that the number of blades 2 can also be one, three, or four. If the mixing blade 10 includes a single blade, the beneficial effects of the mixing blade 10 are similar to those described above for a single blade 2. Referring to Figures 2, 4, and 6, the base 23 of the blade 2 gradually slopes downward and is curved. As described above, because the base 23 of the blade 2 gradually slopes downward and forms an arc, the ingredients come into more complete contact with the blade 2, ultimately achieving efficient and even mixing. When the blade 2 is equipped with a blade edge, the mixing blade also achieves more uniform and efficient chopping. Referring to Figures 5 and 2, 4, and 6, the connection point 211 between the leading end 21 and the blade shaft 1 and the connection point 211 between the trailing end 22 and the blade shaft 1 are both located on the same radial plane of the blade shaft 1. As described above, since the connection points 211 between the leading end 21 and the blade shaft 1 and the connection points 211 between the trailing end 22 and the blade shaft 1 are both located on the same radial horizontal plane of the blade shaft 1, the blade 2 facilitates contact with the ingredients, cutting into them at a gradually changing angle, causing them to lift or press down. Referring to Figures 2, 4, and 6, each blade 2 is generally arranged horizontally. As described above, since the blade 2 is arranged horizontally as a whole, it is more conducive for the food to move upward or downward along the surface of the blade 2, so that the food comes into more complete contact with the blade. Ultimately, the mixing efficiency is high and the mixing is more uniform. In the case where the blade 2 is provided with a blade edge, the mixing blade can also chop more uniformly and efficiently.Please refer to FIGS. 2, 4, and 6 and in combination with FIGS. 3 and 5. The blade 2 includes an end portion 24. In the top view direction of the stirring blade 10, the distance from the end portion 24 to the rotation center of the knife shaft 1 is A, and the maximum width of the area enclosed by the blade 2 is a, where a < A. With reference to FIGS. 5 and 3, by referring to the horizontal axis L1 and the vertical axis L2 in the figures and in combination with an ellipse or a circle, the a and A of the blade 2 can be understood. With the above settings, since a < A, in the case of ensuring more uniform food ingredient mixing and high mixing efficiency, the blade 2 has higher strength, is more capable of stirring the food ingredients and is not easily broken, and has a long lifespan. In addition, because a < A, the blade 2 is flat. Compared with a > A, more parts of the blade 2 can contact the food ingredients during rotation, the food ingredients are mixed more evenly, and the mixing efficiency is also high. Of course, when the blade 2 is provided with a blade edge, the chopping is more uniform and the chopping efficiency is higher. In some embodiments, a > A / 2. With the above settings, since A / 2 < a < A, the blade 2 has higher strength, is more capable of stirring the food ingredients and is not easily broken, has a long lifespan, can have more parts contacting the food ingredients, has a higher mixing efficiency, and is mixed more evenly. When the blade 2 is provided with a blade edge, the chopping is more uniform and the chopping efficiency is higher. Please refer to FIG. 5 and in combination with FIG. 3. The blade 2 is formed by twisting a strip-shaped member of equal width. The width of the strip-shaped member is w, where 15 mm < w < 20 mm. For example, 15 mm, ...... It should be noted that the original text seems to be incomplete at the end of the description about the width range example. I have translated it as accurately as possible based on the available content.As described above, since the blade 2 is a Möbius strip, for a single blade 2, it can better enable the food ingredients to move up and down on the surface of the Möbius strip. Furthermore, the food ingredients are more evenly mixed and the mixing efficiency is higher. For the knife shaft connecting at least two blades, it is more conducive to one side of the blade cutting into the food ingredients at a gradually changing inclination angle when contacting the food, making the food ingredients in a lifted state along the surface of the blade. At the same time, the other side of the blade will contact the food in a downward pressing form, pressing the food ingredients downward, and finally the mixing is more uniform and the mixing efficiency is higher. Of course, when the blade is provided with a blade edge, it can make the chopping more uniform and the chopping efficiency higher. Please refer to Fig. 5 and Fig. 3 and combine with Fig. 2, Fig. 4 and Fig. 6. In the figure, the blade 2 is twisted once. However, those skilled in the art can understand that the number of twists n can be 1 < n < 5. That is to say, it can be twisted once to form the Möbius strip, or it can be twisted multiple times to form the Möbius strip. Of course, when 1 ≤ n ≤ 5, the blade 2 may not be a Möbius strip. As described above, since 1 < n < 5, the number of twisted parts of the blade 2 is less, the load on the motor of the cooking machine is small, and the blade 2 is easy to process. Because the twisted parts will cause the blade 2 to bear resistance during the rotation of the blade 2, more twisted parts will cause the blade 2 to bear greater resistance, and further, the load on the motor of the cooking machine is greater, affecting the life of the motor. In addition, too many twisted parts not only make the structure complex but also are not easy to process. Please refer to Fig. 5 and combine with Fig. 3. When the blade 2 is twisted once, the blade 2 is twisted at the midpoint of the circumference of the blade and then folded back towards the knife shaft 1, and the folded-back part forms the end 24 of the blade 2. Please refer to Fig. 4, Fig. 6 and Fig. 2. The width of the projection of the blade 2 formed in the vertical plane gradually becomes wider from the head end 21 and / or the tail end 22 towards the end 24.As described above, since the blade 2 is twisted once and the width of the projection of the blade 2 on the vertical plane gradually widens from the leading end and / or the trailing end toward the end 24, it is ensured that after the blade 2 cuts into the food, the contact area between the blade 2 and the food gradually increases as the mixing blade 10 rotates, thereby achieving more uniform mixing and higher efficiency. When there are at least two blades 2, more food is lifted or pressed down, resulting in more uniform mixing and higher mixing efficiency. When the blade 2 is provided with a blade edge, the chopping is more uniform and more efficient. In some embodiments, there are at least two blades 2, staggered relative to each other in the circumferential direction of the blade shaft 1. Specifically, if there are two blades 2, they are staggered 180 degrees; if there are three blades 2, they are staggered 120 degrees; and if there are four blades 2, they are staggered 90 degrees. In this case, each blade 2 may be at an axial height of the blade shaft 1, or one pair of blades 2 may be at the same height, but the other pairs may be at unequal heights. As described above, since there are at least two blades 2, staggered relative to each other in the circumferential direction of the blade shaft 1, this arrangement, combined with the structure of the blades 2, allows the blades 2 to rotate with the blade shaft 1. Upon contact with food, some surfaces of the blades 2 cause the food to move upward, lifting it, while other surfaces of the blades 2 contact and press down on the food. Consequently, the food moves up and down in the axial direction of the blade shaft, resulting in more uniform and efficient mixing. In some embodiments, there are at least two blades, with at least one blade having a blade edge at its base; alternatively, none of the blades have blade edges. As shown in FIG3 , all blades 2 are equipped with blade edges 231, while as shown in FIG4 , only the right blade 2 is equipped with blade edge 231. Those skilled in the art will appreciate that none of the blades may be equipped with blade edges. In this configuration, when some blades 2 are equipped with blade edges 231 and others are not, the blades 2 equipped with blade edges 231 perform the chopping function, while the blades 2 without blade edges 231 perform the mixing function. This combination of chopping and mixing not only expands application scenarios but also improves chopping and mixing efficiency, resulting in more uniform chopping and mixing.In the case where none of the cutter blades 2 are provided with cutting edges 231, all the cutter blades 2 function as stirrers, resulting in good mixing effect and high mixing efficiency. Please refer to FIGS. 5 and 3. There are two cutter blades 2, and the projections of the two cutter blades 2 on the horizontal plane are mirror-symmetric with respect to the cutter shaft 1. In the case of mirror-symmetric distribution, the structures of the two cutter blades 2 can be exactly the same (both the bottoms 23 of the cutter blades 2 are provided with cutting edges or neither is provided with cutting edges), or the structures can be different (the bottom 23 of one cutter blade 2 is provided with a cutting edge, and the bottom 23 of the other cutter blade 2 is not provided with a cutting edge, for example, by setting it to a rounded corner). In addition, because the projections on the horizontal plane are mirror-symmetric, the cutter blades 2 can be arranged at the same height in the axial direction of the cutter shaft 1 as shown in FIGS. 4 and 2, or can be arranged at intervals in the axial direction of the cutter shaft 1 as shown in FIG. 6. With the above settings, since there are two cutter blades 2 and the projections of the two cutter blades 2 on the horizontal plane are mirror-symmetric with respect to the cutter shaft 1, during the rotation of the stirring cutter 10, when the cutter blade 2 rotates (such as clockwise), the cutter blade 2 on one side will cut into the food ingredients at a gradually changing inclination angle when contacting the food, causing the food ingredients to be in a lifted state along the surface of the cutter blade 2, while the cutter blade 2 on the other side will contact the food in a downward pressing state and press the food ingredients downward; the cooperation of these two cutter blades 2 will make the food ingredients unstable in the axial direction of the cutter shaft 1 (that is, in an up-and-down movement state), with high mixing efficiency and uniform mixing. In the case where the cutter blades 2 are provided with cutting edges, the cutting efficiency is higher and the cutting effect is better. As described above, the two cutter blades 2 can be arranged at intervals in the axial direction of the cutter shaft 1. In the embodiment of the present application, referring to FIG. 6, the two cutter blades 2 are spaced apart in the axial direction of the cutter shaft 1, and the height difference between the two cutter blades 2 spaced apart in the axial direction of the cutter shaft 1 is h, where 5 mm < h < 2 mm, for example, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm or 20 mm. With the above settings, since 5 mm.

Claims

Claims 1. A stirring knife, It is characterized in that The stirring blade comprises a blade shaft (1) and a blade (2), wherein the blade (2) comprises a head end (21) and a tail end (22), the blade (2) is twisted, and the head end (21) and the tail end (22) are both connected to the blade shaft (1) to form a ring shape.

2. The stirring blade according to claim 1, It is characterized in that The blade (2) comprises at least one of the following features: 1) The bottom (23) of the blade (2) is inclined downward and is arc-shaped; 2) The connection position between the head end (21) and the knife shaft and the connection position between the tail end (22) and the knife shaft are located on the same radial plane of the knife shaft (1); 3) The blade (2) is arranged horizontally as a whole.

3. The stirring blade according to claim 1, It is characterized in that The blade (2) comprises an end (24), in the top view direction of the stirring blade (10), the distance between the end (24) and the rotation center of the blade shaft (1) is A, and the maximum width of the area enclosed by the blade (2) is a, a <Ao 4. The stirring blade according to claim 3, It is characterized in that a>A / 2o 5. The stirring blade according to claim 1, It is characterized in that The blade (2) is twisted from a strip of equal width, the width of the strip being w, 15 mm <w<20mm o 6. The stirring blade according to claim 1, It is characterized in that The blades are twisted once and twisted 180 degrees to form a Möbius strip.

7. The stirring blade according to claim 1, It is characterized in that The blade (2) is twisted n times, 1MnM5.

8. The stirring blade according to claim 1, 6 or 7, It is characterized in that When the blade is twisted once, the blade (2) is twisted at the midpoint of the length of the blade (2) and then folded back toward the blade shaft (1), and the folded-back portion of the blade (2) constitutes an end (24) of the blade (2); the width of the projection formed by the blade (2) on the vertical plane gradually widens from the head end (21) and / or the tail end (22) toward the end (24).

9. The stirring blade according to claim 1, It is characterized in that There are at least two blades (2), which are staggered with respect to each other in the circumferential direction of the blade shaft (1).

10. The stirring blade according to claim 1, It is characterized in that There are at least two blades (2), and a bottom (23) of at least one blade (2) is provided with a blade edge (231); or, none of the blades (2) are provided with a blade edge.

11. The stirring blade according to claim 9 or 10, It is characterized in that There are two blades (2), and the projections of the two blades (2) on a horizontal plane are distributed in a mirror image.

12. The stirring blade according to claim 9 or 10, It is characterized in that There are two blades (2), and the two blades (2) are spaced apart in the axial direction of the blade shaft (1). The height difference between the two blades (2) in the axial direction of the blade shaft (1) is h, 5 mm. <h<20mm o 13. A food processor, characterized in that the food processor comprises the stirring blade (10) according to any one of claims 1 to 12, a stirring bowl (20), a bowl cover (30) and a main unit (40), wherein the bowl cover (30) covers the mouth of the stirring bowl, and a motor (401) of the main unit (40) drives the stirring blade (10) to rotate in the stirring bowl (20).

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