Stirring pulverizing knife, stirring knife assembly and food processor

Abstract

The utility model discloses a kind of stirring pulverizing knives, stirring knife assemblies and food processors, stirring pulverizing knife includes installation part and blade, blade is connected with installation part, blade has first side and second side, the blade width between first side and second side increases first and then decreases along the direction away from installation part, blade is provided with the vent hole that penetrates along the thickness direction of the blade.The stirring pulverizing knife of the utility model is high in the pulverizing efficiency of food material, and little foam and low noise are generated.

Description

Technical Field

[0001] This utility model relates to the field of food processor technology, specifically to a blending and pulverizing blade, a blending blade assembly, and a food processor. Background Technology

[0002] Food processors, such as blenders, juicers, and soy milk makers, typically include a blending cup and a blending blade inside the cup. The blade blends and grinds the ingredients in the blending chamber to process them. However, these food processors suffer from low grinding efficiency, excessive bubbles and foam, and high noise levels. Utility Model Content

[0003] This application is based on the inventor's discoveries and understanding of the following facts and problems:

[0004] In related technologies, the blade width of a blending and pulverizing blade typically decreases gradually from the center of the blending and pulverizing blade towards the tip of the blade. When the blending and pulverizing blade is working, the rotation speed of the food in the blending cup generally decreases in the outward direction. The narrower the part of the blending and pulverizing blade corresponds to the lower rotation speed of the food, resulting in less blending and pulverizing effect of the blade on the food, leading to low blending and pulverizing efficiency, poor effect, more bubbles, and more noise.

[0005] Based on the inventor's above-mentioned findings and understanding, the inventor discovered through research that by first increasing and then decreasing the width of the blending blade in a direction from the inside out, the correlation between the width of the blending blade and the unidirectional trend of the rotational speed of the ingredients in the blending cup is altered. The change in blade width creates a turbulent flow effect on the ingredients, disrupting the unidirectional trend of the ingredients' rotational speed, and the pushing effect of the blade on the ingredients (i.e., preventing the correlation between the width of the blending blade and the linear velocity of the fluid in the blending cup from becoming a single trend), thus improving the blending effect. In particular, increasing and then decreasing the width of the blending blade significantly improves the blending effect.

[0006] This utility model aims to at least partially solve one of the technical problems in the related art.

[0007] Therefore, embodiments of this utility model propose a mixing and pulverizing blade with improved pulverizing effect, less foam, and lower noise.

[0008] An embodiment of this utility model also proposes a food processor.

[0009] The mixing and pulverizing blade of this utility model embodiment includes a mounting part and a blade. The blade is connected to the mounting part. The blade has a first side and a second side. The blade width between the first side and the second side first increases and then decreases in the direction away from the mounting part. The blade is provided with a pressure relief hole that extends through the thickness direction of the blade.

[0010] The mixing and pulverizing blade of this utility model is designed so that the blade width first increases and then decreases along the direction away from the mounting part. This ensures that the change in blade width does not exhibit a single-trend correlation with the change in the rotational speed of the food in the cooking chamber, effectively interfering with the movement of the food. This allows the blade to exert greater force on the food, resulting in high pulverization efficiency and good pulverization effect. Moreover, during the rotation of the blade, water can flow through the pressure relief hole to balance the pressure on the upper and lower sides of the blade, effectively reducing the probability of cavitation. The pressure relief hole can also cut and break down cavitation, preventing cavitation from accumulating. Therefore, less foam is generated when pulverizing food, and the noise is low.

[0011] In some embodiments, each of the first side and the second side has a proximal end and a distal end, the proximal end of the first side is connected to the mounting portion, the proximal end of the second side is connected to the mounting portion, the distal end of the first side is connected to the distal end of the second side, and one of the first side and the second side is a straight side.

[0012] The mixing and pulverizing blade of this embodiment, by setting one of the first and second sides to be a straight side, makes the outer contour of the blade roughly the shape of a cleaver, resulting in high overall strength. Furthermore, the non-straight side of the first and second sides can be set as the blade edge to provide a longer cutting length, increasing the contact area and contact time between the blade and the food, thereby improving pulverizing efficiency and effect, and reducing bubbles and noise.

[0013] In some embodiments, the width of the pressure relief hole first increases and then decreases in the direction away from the mounting portion, and / or the ratio of the area of ​​the pressure relief hole to the area of ​​the blade is L, wherein 0.12≤L≤0.65.

[0014] In this embodiment, the width of the pressure relief hole in the mixing and pulverizing blade is matched to the width of the blade. This allows the pressure relief hole to adaptively balance the pressure difference across any region along the blade's length, effectively reducing noise during food mixing and pulverization. By setting L to be less than or equal to 0.65, the solid portion of the blade has sufficient width and strength, improving its service life. By setting L to be greater than or equal to 0.12, the pressure relief hole has a sufficiently large area, enabling the blade to achieve better noise reduction and improving the smoothness of food flow through the pressure relief hole.

[0015] In some embodiments, the outline of the pressure relief hole includes a first outline segment adjacent to and parallel to the first side and a second outline segment adjacent to and parallel to the second side, wherein the distance between the first outline segment and the first side is a, and the distance between the second outline segment and the second side is b, wherein 2.4mm≤a≤8.8mm, 1.8mm≤b≤8.8mm.

[0016] In this embodiment, the mixing and pulverizing blade, by setting a to be greater than or equal to 2.4 mm and b to be greater than or equal to 1.8 mm, ensures that the solid part of the blade has sufficient width at any position along its length, thereby possessing sufficient strength and reducing the possibility of deformation and damage during high-speed rotation. By setting a to be less than or equal to 8.8 mm and b to be less than or equal to 8.8 mm, it ensures that the pressure relief hole has a sufficiently large area, resulting in better noise reduction.

[0017] In some embodiments, the first side is the blade side and the second side is the back side, wherein a > b.

[0018] In this embodiment of the mixing and pulverizing blade, the side of the blade edge experiences greater impact strength than the side of the blade back when the blade rotates at high speed. By setting 'a' to be greater than 'b', the structural strength of the blade is ensured, and the area of ​​the pressure relief hole is effectively increased to achieve a better noise reduction effect.

[0019] In some embodiments, the blade is twisted relative to the mounting portion about the length of the blade, and the twist angle of the blade is c, wherein 0.5°≤c≤25°.

[0020] In this embodiment, the mixing and pulverizing blade, by setting c to be greater than or equal to 0.5°, allows the upper or lower side of the blade to assist in stirring and guiding the food during rotation. This makes the food flow more freely and is more efficiently pulverized by the side of the blade. By setting c to be less than or equal to 25°, the blade is effectively prevented from deforming or being damaged due to excessive impact from the food during high-speed rotation.

[0021] In some embodiments, the mounting part and the blade are integrally formed from a metal sheet, the first side is the blade edge side, the second side is the blade back side, the second side is a straight side, and the first side includes a straight segment and an arc segment, the arc segment being connected to the second side.

[0022] The integrated design of the mounting part and the blade in this embodiment of the mixing and pulverizing blade results in higher connection strength and greater design precision of the blade relative to the mounting part. By including a straight segment and an arc segment on the first side, the length of the first side can be longer compared to the side of the blade which is entirely straight, further improving the pulverizing efficiency and effect on food. Moreover, by setting the arc segment on the side of the straight segment away from the mounting part, it is more conducive to throwing the food outward when pulverizing it, forming turbulence through the rebound of the inner wall of the cooking cavity, further improving the disturbance effect, thereby improving the mixing and pulverizing effect and reducing bubbles and noise. The mixing blade assembly according to this utility model embodiment includes a mixing and pulverizing blade and a blade shaft. The mixing and pulverizing blade can be the mixing and pulverizing blade of the above embodiment, and the mounting part is mounted on the blade shaft.

[0023] In this embodiment, the mixing blade assembly has a high efficiency and good pulverizing effect by setting the width of the blade in the mixing and pulverizing blade to first increase and then decrease along the direction away from the mounting part.

[0024] In some embodiments, the stirring blade assembly further includes a rotating shaft to which the blade shaft is detachably assembled.

[0025] The stirring blade assembly of this embodiment is designed to be detachably connected to the blade shaft and the rotating shaft, which facilitates disassembly and assembly, thus making it easy to clean. It also makes it easy to replace the blade shaft or the stirring and pulverizing blade when it is damaged.

[0026] The food processor according to the present invention includes the mixing and pulverizing blade or mixing blade assembly described in the above embodiments. Attached Figure Description

[0027] Figure 1 This is a perspective view of the mixing and pulverizing blade according to an embodiment of the present utility model.

[0028] Figure 2 This is a top view of the mixing and pulverizing blade according to an embodiment of the present invention.

[0029] Figure 3 This is a partially enlarged schematic diagram of the mixing and pulverizing blade according to an embodiment of the present invention.

[0030] Figure 4 This is a three-dimensional schematic diagram of a stirring and pulverizing blade installed on a blade shaft to form a stirring blade assembly according to an embodiment of the present invention.

[0031] Figure label:

[0032] 100. Mixing and pulverizing blade; 200. Mixing blade assembly; 1. Mounting part; 2. Blade; 21. First side; 211. Straight segment; 212. Curved segment; 22. Second side; 23. Pressure relief hole; 3. Blade shaft. Detailed Implementation

[0033] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] The mixing and pulverizing blade of this utility model is described below with reference to the accompanying drawings.

[0035] It is understood that the mixing and pulverizing blade of this utility model embodiment is generally also referred to as a mixing blade or a pulverizing blade. In the description of this utility model embodiment, "ingredients" should be interpreted broadly, for example, it is generally also referred to as an ingredient mixture, a mixture of ingredients and water, a mixture, a fluid, a liquid, etc. The mixing and pulverizing blade of this utility model embodiment can be used in a food processor, such as a high-speed blender, juicer, soy milk maker, etc., and can be used to prepare soy milk, rice paste, corn juice, nut milk, mung bean soup, etc., but is not limited thereto.

[0036] like Figures 1-4 As shown, the stirring and pulverizing blade 100 of this utility model embodiment includes a mounting part 1 and a blade 2. The blade 2 is connected to the mounting part 1. The blade 2 has a first side 21 and a second side 22. The width of the blade 2 between the first side 21 and the second side 22 first increases and then decreases in the direction away from the mounting part 1. The blade 2 is provided with a pressure relief hole 23 that penetrates along the thickness direction of the blade 2.

[0037] It should be noted that, in the embodiments of the present invention, as... Figure 2 As shown, the width of the blade 2, that is, the width of the blade 2 between the first side 21 and the second side 22, refers to the arc length W between the first intersection point of the first side 21 and the first intersection point of the circle with the center of the mounting part 1 and the second intersection point of the circle with the second side 22.

[0038] The mixing and pulverizing blade 100 of this embodiment of the invention features a blade 2 whose width initially increases and then decreases along the direction away from the mounting part 1. This ensures that the change in blade 2's width does not exhibit a singular correlation with the rotational speed of the food within the cooking chamber, effectively interfering with the movement of the food. This allows the blade 2 to exert greater force on the food, resulting in high pulverization efficiency and excellent pulverization effect. Furthermore, during the rotation of the blade 2, water can flow through the pressure relief hole 23 to balance the pressure on both sides of the blade 2, effectively reducing the probability of cavitation. The pressure relief hole 23 can also cut and break down cavitation, preventing its accumulation. Consequently, less foam is generated and noise is reduced when pulverizing food.

[0039] In some embodiments, each of the first side 21 and the second side 22 has a proximal end and a distal end, the proximal end of the first side 21 is connected to the mounting portion 1, the proximal end of the second side 22 is connected to the mounting portion 1, the distal end of the first side 21 is connected to the distal end of the second side 22, and one of the first side 21 and the second side 22 is a straight side.

[0040] By setting one of the first side 21 and the second side 22 to be a straight side, the outer contour of the blade 2 is roughly the shape of a bone cleaver, resulting in high overall strength. Furthermore, this setting allows for a longer length on one side. The non-straight side of the first side 21 and the second side 22 can be selected as the cutting edge, providing a longer cutting length. This increases the contact area and contact time between the blade and the food, thereby improving pulverization efficiency and effectiveness, and reducing bubbles and noise.

[0041] In the description of the embodiments of the present invention, "far" and "near" are relative terms. For example, "near" means relatively close to the center of the mounting part 1, and "far" means relatively far from the center of the mounting part 1. The near end is closer to the mounting part 1 than the far end.

[0042] Optionally, one of the first side 21 and the second side 22 is a smoothly extending and non-straight blade side, meaning the blade side has no bends. A bend here refers to, for example, the blade side dividing into two straight segments 211 with an included angle less than a predetermined angle, such as 90 degrees, or the connection point between two adjacent segments of the blade side, or the formation of a distinct angle on the blade side. Therefore, in this embodiment, the blade side is longer and smoother, resulting in smoother cutting and outward throwing of food, increasing the contact area and contact time between the blade and the food, thereby improving the pulverizing efficiency and effect, and reducing bubbles and noise.

[0043] In some embodiments, the width of the pressure relief hole 23 first increases and then decreases in the direction away from the mounting part 1. The change in the width of the pressure relief hole 23 matches the change in the width of the blade 2, thereby enabling the pressure relief hole 23 to adaptively balance the pressure difference in any region along the length of the blade 2, effectively reducing the noise generated when crushing and grinding food.

[0044] For example, such as Figures 1-4 As shown, on a plane orthogonal to the rotation axis of blade 2, the projected outer contour of pressure relief hole 23 has the same shape as the projected outer contour of blade 2.

[0045] In some embodiments, the outline of the pressure relief hole 23 includes a first outline segment adjacent to and parallel to the first side 21 and a second outline segment adjacent to and parallel to the second side 22. The distance between the first outline segment and the first side 21 is a, and the distance between the second outline segment and the second side 22 is b, wherein 2.4mm≤a≤8.8mm and 1.8mm≤b≤8.8mm.

[0046] By setting a to be greater than or equal to 2.4 mm and b to be greater than or equal to 1.8 mm, the solid part of the blade 2 can be ensured to have sufficient width at any position along its length, thus possessing sufficient strength and reducing the possibility of deformation and damage during high-speed rotation. By setting a to be less than or equal to 8.8 mm and b to be less than or equal to 8.8 mm, the pressure relief hole 23 can be ensured to have a sufficiently large area, resulting in better noise reduction.

[0047] For example, the distance a between the first contour line segment and the first side 21 can be 2.4mm, 4mm, 6mm or 8.8mm, and the distance b between the second contour line segment and the second side 22 can be 1.8mm, 3.8mm or 8.8mm.

[0048] For example, the first side 21 is the cutting edge side, and the second side 22 is the back side side, where a > b. When the blade 2 rotates at high speed, the cutting edge side experiences greater impact strength than the back side side. By setting a to be greater than b, the structural strength of the blade 2 is ensured, and the area of ​​the pressure relief hole 23 is effectively increased to achieve better noise reduction.

[0049] For example, both the first side 21 and the second side 22 can be blade sides, in which case a = b.

[0050] In some embodiments, the ratio of the area of ​​the pressure relief hole 23 to the area of ​​the blade 2 is L, where 0.12 ≤ L ≤ 0.65. By setting L less than or equal to 0.65, the solid portion of the blade 2 is ensured to have sufficient width and strength, thereby improving its service life. By setting L greater than or equal to 0.12, the pressure relief hole 23 is ensured to have a sufficiently large area, so that the blade 2 has a better noise reduction effect and improves the smoothness of food flow through the pressure relief hole 23.

[0051] For example, the area of ​​the pressure relief hole 23 is the area of ​​the outer contour of the projection of the pressure relief hole 23 onto a projection plane orthogonal to the rotation axis of the blade 2, and the area of ​​the blade 2 is the area of ​​the outer contour of the projection of the blade 2 onto a projection plane orthogonal to the rotation axis of the blade 2. The ratio L of the area of ​​the pressure relief hole 23 to the area of ​​the blade 2 can be 0.12, 0.3, or 0.65.

[0052] In some embodiments, the blade 2 is twisted relative to the mounting portion 1 about its length, and the twist angle of the blade 2 is c, where 0.5° ≤ c ≤ 25°. By setting c to be greater than or equal to 0.5°, the blade 2 can assist in agitating and guiding the food through its upper or lower side during rotation, making the food flow more freely and thus more efficiently crushed by the side edge of the blade 2. By setting c to be less than or equal to 25°, the blade 2 is effectively prevented from being deformed or damaged due to excessive impact from the food during high-speed rotation.

[0053] For example, the torsion angle c of the blade 2 can be 0.5°, 5°, 15°, and 25°. There are multiple blades 2, all of which are torsion in the same direction.

[0054] In some embodiments, such as Figures 1-3 As shown, the mounting part 1 and the blade 2 are integrally formed from a metal sheet. The first side 21 is the blade edge side, and the second side 22 is the blade back side. The second side 22 is a straight side. The first side 21 includes a straight segment 211 and an arc segment 212, and the arc segment 212 is connected to the second side 22.

[0055] The integrated design of the mounting part 1 and the blade 2 enhances their connection strength, and the blade 2 exhibits higher design precision relative to the mounting part 1. By incorporating a straight segment 211 and an arc segment 212 into the first side 21, its length can be longer than that of a purely straight blade side, further improving the efficiency and effectiveness of food pulverization. Moreover, by positioning the arc segment 212 on the side of the straight segment 211 furthest from the mounting part 1, it facilitates the outward throwing of food during pulverization, creating turbulence through the rebound on the inner wall of the cooking chamber, further enhancing the agitation effect, thereby improving mixing and pulverization while reducing bubbles and noise.

[0056] In one embodiment, the straight segment 211 and the curved segment 212 can transition smoothly, meaning there is no bend in the blade side. A bend here refers to, for example, the blade side being divided into two segments with an angle less than 120 degrees, or the connection between the two segments forming a sharp angle. Therefore, in this embodiment, the blade side is longer and smoother, resulting in smoother cutting and tossing of food, increasing the contact area and contact time between the blade and the food, thereby improving pulverization efficiency and effect, and reducing bubbles and noise.

[0057] For example, a single metal sheet can be integrally formed into the mounting part 1 and the blade 2 using processes such as stamping. Figures 1-4 As shown, the outline of the first side 21 is roughly the same as the outline of the blade of the cleaver. While ensuring that the blade 2 has a longer blade side, the far end of the blade 2 has a greater width.

[0058] like Figure 4 As shown, the stirring blade assembly 200 of this utility model embodiment includes a stirring and pulverizing blade 100 and a blade shaft 3. The stirring and pulverizing blade 100 can be the stirring and pulverizing blade 100 of the above embodiment, and the mounting part 1 is mounted on the blade shaft 3.

[0059] The mixing blade assembly 200 of this embodiment has a high grinding efficiency and good grinding effect because the width of the blade 2 in the mixing and grinding blade 100 first increases and then decreases in the direction away from the mounting part 1.

[0060] In some embodiments, the stirring blade assembly 200 further includes a rotating shaft, to which the blade shaft 3 is detachably assembled.

[0061] The mixing and pulverizing blade 100 is connected to the rotating shaft via the blade shaft 3. The rotating shaft drives the mixing and pulverizing blade 100 to rotate, thereby pulverizing the food. By setting the blade shaft 3 and the rotating shaft to be detachably connected, it is easy to disassemble and clean. Furthermore, when the blade shaft 3 or the mixing and pulverizing blade 100 is damaged, it is easy to replace and the replacement cost is low.

[0062] For example, the rotating shaft is rotatably mounted on the bottom of the blending cup. The blade shaft 3 can be plugged into the rotating shaft, or the blade shaft 3 can be spirally connected to the rotating shaft. In a specific embodiment, the rotating shaft can be provided with a drive section, which includes several edges extending in the vertical direction and deflecting circumferentially. The deflection direction of the edges from top to bottom is opposite to the rotation direction of the blending blade assembly 200. The blade shaft 3 is provided with a drive hole that matches the drive section. The drive hole includes several edges extending vertically in the vertical direction. The blade shaft 3 and the rotating shaft are detachably connected through the cooperation of the drive hole and the drive section.

[0063] In some embodiments, the rotating shaft can be directly connected to the motor; in other embodiments, the rotating shaft can be connected to the motor via a coupling. The food processor of this embodiment includes the blending / grinding blade 100 or blending blade assembly 200 described above.

[0064] The food processor of this utility model has a mixing and pulverizing blade 100 that is suitable for placement or installation in the food processing chamber of the food processing cup, especially in a non-circular food processing chamber, which can further improve the mixing and pulverizing effect and reduce noise.

[0065] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0068] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0069] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A mixing and pulverizing blade (100), characterized in that, include: Installation section (1); The blade (2) is connected to the mounting part (1). The blade (2) has a first side (21) and a second side (22). The width of the blade (2) between the first side (21) and the second side (22) increases first and then decreases in the direction away from the mounting part (1). The blade (2) is provided with a pressure relief hole (23) that extends through the thickness direction of the blade (2).

2. The mixing and pulverizing blade (100) according to claim 1, characterized in that, Each of the first side (21) and the second side (22) has a proximal end and a distal end. The proximal end of the first side (21) is connected to the mounting part (1), the proximal end of the second side (22) is connected to the mounting part (1), and the distal end of the first side (21) is connected to the distal end of the second side (22). One of the first side (21) and the second side (22) is a straight side.

3. The stirring and pulverizing blade (100) according to claim 1, characterized in that, The width of the pressure relief hole (23) increases first and then decreases along the direction away from the mounting part (1), and / or the ratio of the area of ​​the pressure relief hole (23) to the area of ​​the blade (2) is L, where 0.12≤L≤0.

65.

4. The stirring and pulverizing blade (100) according to any one of claims 1-3, characterized in that, The outline of the pressure relief hole (23) includes a first outline segment adjacent to and parallel to the first side (21) and a second outline segment adjacent to and parallel to the second side (22). The distance between the first outline segment and the first side (21) is a, and the distance between the second outline segment and the second side (22) is b, wherein 2.4mm≤a≤8.8mm and 1.8mm≤b≤8.8mm.

5. The stirring and pulverizing blade (100) according to claim 4, characterized in that, The first side (21) is the blade side, and the second side (22) is the back side, where a > b.

6. The mixing and pulverizing blade (100) according to any one of claims 1-3, characterized in that, The blade (2) is twisted relative to the mounting part (1) about the length direction of the blade (2), and the twist angle of the blade (2) is c, where 0.5°≤c≤25°.

7. The stirring and pulverizing blade (100) according to any one of claims 1-3, characterized in that, The mounting part (1) and the blade (2) are integrally formed from a metal sheet. The first side (21) is the blade edge side, and the second side (22) is the blade back side. The second side (22) is a straight side. The first side (21) includes a straight segment (211) and an arc segment (212). The arc segment (212) is connected to the second side (22).

8. A stirring blade assembly (200), characterized in that, It includes a stirring and pulverizing blade (100) and a blade shaft (3), wherein the stirring and pulverizing blade (100) is the stirring and pulverizing blade (100) according to any one of claims 1-7, and the mounting part (1) is mounted on the blade shaft (3).

9. The stirring blade assembly (200) according to claim 8, characterized in that, The stirring blade assembly (200) also includes a rotating shaft, to which the blade shaft (3) is detachably assembled.

10. A food processor, characterized in that, Includes the stirring and pulverizing blade (100) according to any one of claims 1-7 or the stirring blade assembly (200) according to claim 8 or 9.

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