stirring blade, stirring blade assembly, food cup assembly and food processor

Abstract

The utility model discloses a kind of stirring and crushing knives, stirring knife assemblies, cooking cup assemblies and cooking machines, stirring and crushing knife includes installation part and multiple blades, blade is connected with installation part, multiple blades are arranged along the circumferential direction interval of installation part, the width of blade first increases then decreases along the direction away from installation part, multiple blades include first blade and second blade, first blade is inclined to the upside of installation part relative to installation part, second blade is inclined to the downside of installation part relative to installation part, at least one of first blade and second blade has downward facing blade edge inclined surface.The utility model's stirring and crushing knife is high to the crushing efficiency of food material, crushing effect is good, and noise is low.

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, a food processor cup 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 utility model is based on the inventor's discovery and understanding of the following facts and problems:

[0004] In related technologies, the blades of a mixing and pulverizing blade are usually tilted upwards or downwards to achieve three-dimensional mixing of ingredients in a larger area in the vertical direction. In order to ensure that the distal end of the blade is still close to the inner wall of the cooking cavity, and not to increase the length of the blade too much and affect its strength, the height difference between the proximal and distal ends of the blade is limited, thus limiting the three-dimensional mixing effect on the ingredients.

[0005] Based on the inventor's above-mentioned findings and understanding, the inventor discovered through research that the blades of the mixing and pulverizing blade include an upwardly inclined blade and a downwardly inclined blade. Without excessively extending the length of the blades, a large height difference can be formed between the distal ends of the upwardly inclined blade and the distal ends of the downwardly inclined blade, resulting in a better three-dimensional mixing effect on the food and higher pulverization efficiency.

[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 stirring pulverizer with improved pulverizing effect.

[0008] The mixing and pulverizing blade of this utility model embodiment includes a mounting part and a plurality of blades. The blades are connected to the mounting part and the plurality of blades are arranged at intervals along the circumference of the mounting part. The width of the blades first increases and then decreases in the direction away from the mounting part. The plurality of blades includes a first blade and a second blade. The first blade is inclined towards the upper side of the mounting part relative to the mounting part, and the second blade is inclined towards the lower side of the mounting part relative to the mounting part. At least one of the first blade and the second blade has a downward-facing cutting edge.

[0009] The mixing and pulverizing blade of this utility model, by setting the blade width to first increase and then decrease along the direction away from the mounting part, ensures that the change in blade width does not exhibit a single-trend correlation with the change in the rotational speed of the ingredients in the cooking chamber. This effectively interferes with the movement of the ingredients, allowing the blade to exert greater force on them, resulting in high pulverization efficiency, good pulverization effect, less foam, and low noise. By tilting the first and second blades upward and downward relative to the mounting part, respectively, a sufficient height difference is created between the distal ends of the first and second blades. When the first and second blades rotate with the height of the mounting part, they can achieve three-dimensional pulverization of the ingredients in the vertical direction and over a larger area, resulting in even higher pulverization efficiency, better effect, lower noise, and higher pulp quality. Furthermore, by setting at least one of the first and second blades to have a downward-facing blade bevel, the ingredients can be thrown downwards, effectively interfering with their movement while preventing the ingredients at the bottom of the cooking cup from being unable to be lifted and thus avoiding burning at the bottom.

[0010] In some embodiments, the second blade is divided into a root portion and a tip portion in a direction away from the mounting portion, the root portion is in contact with the mounting portion, the tip portion is bent upward relative to the root portion, and the included angle between the tip portion and the root portion is an obtuse angle.

[0011] In this embodiment, the mixing and pulverizing blade features a second blade with its tip bent upwards relative to its base. This design ensures a smaller angle between the tip's extension direction and the bottom wall of the cooking chamber, resulting in higher pulverization efficiency for ingredients below it. Furthermore, while maintaining a constant distance between the distal end of the tip and the rotation axis, the bending design of the tip relative to the base further increases the length of the side edge of the second blade, further enhancing the pulverization efficiency.

[0012] In some embodiments, the first blade has a downward-facing first cutting edge bevel, and the second blade has a downward-facing or upward-facing second cutting edge bevel.

[0013] In this embodiment, the mixing and pulverizing blade has a first blade that can throw food downwards via the first blade's inclined surface, and a second blade that can throw food downwards or upwards via the second blade's inclined surface. This effectively increases the disturbance to the flow of food, resulting in better pulverization efficiency and effect, fewer bubbles, and lower noise.

[0014] In some embodiments, the angle of inclination of the blade root relative to the mounting portion toward the lower side of the mounting portion is 'a', and the angle of inclination of the blade tip relative to the mounting portion toward the lower side of the mounting portion is 'b', wherein 18°≤a≤55.5° and 4.5°≤b≤31°.

[0015] In this embodiment, the mixing and pulverizing blade, by setting a greater than or equal to 18° and a greater than or equal to 4.5°, ensures a sufficiently large height difference between the proximal end of the blade side at the base and the distal end of the blade tip, thereby achieving pulverization of more food areas in the height direction. By setting a less than or equal to 55.5° and a less than or equal to 31°, while maintaining a fixed length of the second blade, it avoids an excessively large distance between the distal end of the blade side and the inner wall of the cooking cavity, which would reduce the pulverization efficiency of food near the inner wall of the adjacent cooking cavity.

[0016] In some embodiments, the ratio of the length of the blade root to the length of the blade tip is L4, wherein L4 ≥ 1.45.

[0017] In this embodiment, the mixing and pulverizing blade, by setting L4≥1.45, effectively avoids the average distance between the second blade and the bottom wall of the cooking cavity being too small, resulting in less noise generated by the movement of food between the second blade and the bottom wall of the cooking cavity under the impact of the second blade.

[0018] In some embodiments, the tilt angle of the first blade relative to the mounting portion is c, wherein 15°≤c≤36°.

[0019] In this embodiment, by setting c to be greater than or equal to 15°, the height difference between the proximal and distal ends of the blade side on the first blade is sufficiently large to achieve pulverization of food in a wider area along the height direction. By setting c to be less than or equal to 36°, while maintaining a fixed length of the first blade, the distance between the distal end of the blade side and the inner wall of the cooking cavity is prevented from becoming too large, thus avoiding reduced pulverization efficiency of food near the inner wall of the adjacent cooking cavity.

[0020] In some embodiments, the blade has a first side and a second side, 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, and the distal end of the first side is connected to the distal end of the second side. The first side is a cutting edge side, and the second side is a back side. The first side includes a straight segment and an arc segment, the proximal end of the straight segment is connected to the mounting portion, the distal end of the straight segment is connected to the proximal end of the arc segment, and the distal end of the arc segment is connected to the second side.

[0021] The mixing and pulverizing blade in this embodiment has an arc segment design, which makes the side of the blade longer, the contact area between the side of the blade and the food larger, and the contact time longer, thus making the pulverizing efficiency higher and the pulverizing effect better.

[0022] In some embodiments, the distal end of the straight line segment connects to the proximal end of the arc segment and transitions smoothly.

[0023] In this embodiment, the mixing and pulverizing blade smoothly connects the far end of the straight segment to the near end of the curved segment, meaning there are no bends on the side of the blade. A bend here refers to a sharp angle formed at the junction of the straight and curved segments. This results in a smoother blade side, allowing for smoother cutting and tossing of ingredients, fewer air bubbles generated during mixing, and lower noise.

[0024] In some embodiments, the length of the straight segment is L1, the length of the arc segment is L2, wherein 9.6mm≤L1≤16.6mm, 17.1mm≤L2≤28.6mm, the ratio of the length of the straight segment to the length of the arc segment is S, wherein 0.31≤S≤0.56; and / or, the angle between the second side (22) and the straight segment (211) is M, wherein 4.5°≤M≤33°.

[0025] In this embodiment, the mixing and shredding blade, by limiting the length of the straight segment to between 9.6mm and 16.6mm, is particularly advantageous when used in non-circular cooking cavities, such as square ones. The distal end of the straight segment can be closer to the center of the side wall of the cooking cavity, resulting in better shredding of ingredients near the center. By setting the length of the curved segment to between 17.1mm and 28.6mm, when the curved segment moves to the corner of the cooking cavity, it has a greater shredding length for ingredients at the corner, thus improving the shredding efficiency and effect for that portion of the ingredients. By setting 4.5°≤M≤33°, on the one hand, it ensures that the proximal end of the blade has sufficient width, making the connection between the blade and the mounting part less prone to bending and deformation; on the other hand, it avoids excessive maximum blade width due to an excessively large angle between the two, which could cause excessive noise.

[0026] In some embodiments, the arc segment includes a first arc segment and a second arc segment, the first arc segment connecting the second arc segment and the straight line segment, the second arc segment connecting to the second side, the radius of curvature of the first arc segment being R1, and the radius of curvature of the second arc segment being R2, wherein R1≥24.8mm, 8.5mm≤R2≤16.7mm, and R2≥24.8mm.

[0027] The mixing and pulverizing blade of this embodiment is designed with an arc segment including a first arc segment and a second arc segment whose radius of curvature decreases in the direction away from the mounting part. This allows the blade width to increase and then decrease again. The second arc segment can be used as a transition segment between the first side and the second side, so that the first side and the second side transition smoothly. The blade can extend to a longer length, thereby improving the pulverizing and tossing effect on food and making the blade less prone to deformation.

[0028] In some embodiments, the ratio of the length of the first arc segment to the length of the first side is L3, wherein 0.49≤L3≤0.84.

[0029] By setting L3 to 0.49 ≤ L3 ≤ 0.84, we can ensure that the first arc segment has sufficient length to extend the blade length. On the other hand, we can also ensure that the blade has sufficient strength.

[0030] In some embodiments, the blade is provided with a pressure relief hole, the width of which first increases and then decreases along the direction away from the mounting portion.

[0031] In this embodiment, the mixing and pulverizing blade allows water to flow through a pressure relief hole during blade rotation, balancing the pressure on both sides of the blade and effectively reducing the likelihood of cavitation. The pressure relief hole also cuts and breaks down cavitation, preventing its accumulation and resulting noise. Furthermore, the width of the pressure relief hole matches the width of the blade, allowing it to adaptively balance pressure differences along the blade's length in any region, effectively reducing noise during food mixing and pulverization.

[0032] In some embodiments, the blade has a first side and a second side, 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, and the distal end of the first side is connected to the distal end of the second side. The first side is the cutting edge side. 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. The distance between the first outline segment and the first side is d, and the distance between the second outline segment and the second side is e, where d > e; and or 2.4 mm ≤ d ≤ 8.8 mm, 1.8 mm ≤ e ≤ 8.8 mm.

[0033] 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 d to be greater than e, 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.

[0034] By setting d to be greater than or equal to 2.4mm and e to be greater than or equal to 1.8mm, the solid part of the blade 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 d to be less than or equal to 8.8mm and e to be less than or equal to 8.8mm, the pressure relief hole can be ensured to have a sufficiently large area, resulting in better noise reduction.

[0035] In some embodiments, the ratio of the area of ​​the pressure relief hole to the area of ​​the blade is L5, wherein 0.12 ≤ L5 ≤ 0.65.

[0036] In this embodiment, the mixing and pulverizing blade is designed with L5 less than or equal to 0.65 to ensure that the solid part of the blade has sufficient width and strength, thereby improving its service life. By setting L5 greater than or equal to 0.12, the pressure relief hole is designed to have a sufficiently large area, so that the blade has a better noise reduction effect and improves the smoothness of food flow through the pressure relief hole.

[0037] 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 f, wherein 0.5°≤f≤25°.

[0038] In this embodiment, the mixing and pulverizing blade, by setting f to be greater than or equal to 0.5°, allows the upper or lower side of the blade to assist in agitating and guiding the food during rotation. This makes the food flow more freely and allows it to be more efficiently pulverized by the side of the blade. By setting f 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.

[0039] In some embodiments, the first blade and the second blade are alternately arranged circumferentially along the mounting portion, the first blades are arranged in pairs and the two first blades in each pair are arranged symmetrically with respect to the center of the mounting portion, and the second blades are arranged in pairs and the two second blades in each pair are arranged symmetrically with respect to the center of the mounting portion.

[0040] In this embodiment, the mixing and pulverizing blade has two first blades and two second blades working together to pulverize the food. At the same rotation speed, the food is pulverized by the first blades and the second blades in sequence, thus achieving higher pulverization efficiency.

[0041] The stirring blade assembly according to an embodiment of the present invention includes a stirring and pulverizing blade and a blade shaft. The stirring and pulverizing blade can be the stirring and pulverizing blade of the above embodiment, and the mounting part is mounted on the blade shaft.

[0042] 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.

[0043] In some embodiments, the stirring blade assembly further includes a rotating shaft to which the blade shaft is detachably assembled.

[0044] The stirring blade assembly in this embodiment is designed with the blade shaft and the rotating shaft detachably connected, which facilitates disassembly and assembly, 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.

[0045] The food processor assembly of this embodiment includes the blending / grinding blade or the blending blade assembly of the above embodiments.

[0046] The food processor in this embodiment includes the blending blade or blending blade assembly or food processor cup assembly of the above embodiments. Attached Figure Description

[0047] Figure 1 This is a perspective view of the mixing and pulverizing blade according to an embodiment of the present utility model.

[0048] Figure 2 This is a top view of the mixing and pulverizing blade according to an embodiment of the present invention.

[0049] Figure 3 This is a partially enlarged schematic diagram of the mixing and pulverizing blade according to an embodiment of the present invention.

[0050] Figure 4 This is a side view of the mixing and pulverizing blade according to an embodiment of the present invention.

[0051] Figure 5 This is a side view schematic diagram of the mixing and pulverizing blade according to another perspective of an embodiment of the present utility model.

[0052] Figure 6 This is a bottom view of the mixing and pulverizing blade according to an embodiment of the present utility model.

[0053] Figure 7 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.

[0054] Figure 8 This is a bottom view of a mixing and pulverizing blade according to another embodiment of the present invention.

[0055] Figure 9 This is a top view of a mixing and pulverizing blade according to another embodiment of the present invention.

[0056] Figure label:

[0057] 100. Mixing and pulverizing blade; 200. Mixing blade assembly; 1. Mounting part; 101. Blade; 2. First blade; 21. First side; 211. Straight segment; 212. Arc segment; 2121. First arc segment; 2122. Second arc segment; 22. Second side; 23. Pressure relief hole; 24. First blade bevel; 3. Second blade; 31. Blade root; 32. Blade tip; 33. Second blade bevel; 4. Blade shaft. Detailed Implementation

[0058] 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.

[0059] The mixing and pulverizing blade of this utility model is described below with reference to the accompanying drawings.

[0060] 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 slurry, 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., for example, to prepare soy milk, rice paste, corn juice, nut milk, mung bean soup, etc., but is not limited thereto.

[0061] like Figures 1-9 As shown, the mixing and pulverizing blade 100 of this utility model embodiment includes a mounting part 1 and a plurality of blades 101. The blades 101 are connected to the mounting part 1. The plurality of blades 101 are arranged at intervals along the circumference of the mounting part 1. The width of the blades 101 first increases and then decreases in the direction away from the mounting part 1. The plurality of blades 101 includes a first blade 2 and a second blade 3. The first blade 2 is inclined towards the upper side of the mounting part 1 relative to the mounting part 1, and the second blade 3 is inclined towards the lower side of the mounting part 1 relative to the mounting part 1. At least one of the first blade 2 and the second blade 3 has a downward-facing blade bevel.

[0062] The mixing and pulverizing blade 100 of this embodiment features a blade 101 whose width increases and then decreases along the direction away from the mounting part 1. This ensures that the width change of the blade 101 does not exhibit a single-trend correlation with the rotational speed of the ingredients within the cooking chamber, effectively interfering with the movement of the ingredients. This allows the blade 101 to exert greater force on the ingredients, resulting in high pulverization efficiency, good pulverization effect, less foam, and low noise. By tilting the first blade 2 and the second blade 3 upwards and downwards relative to the mounting part 1, respectively, a sufficient height difference is created between the distal ends of the first blade 2 and the second blade 3. As the first blade 2 and the second blade 3 rotate with the mounting part 1, they can achieve three-dimensional pulverization of the ingredients in a larger area along the height direction. This further enhances the pulverization efficiency, improves the effect, reduces noise, and improves the quality of the pulp. Furthermore, by having at least one of the first blade 2 and the second blade 3 with a downward-facing blade bevel, the ingredients can be thrown downwards, effectively interfering with their movement while preventing the ingredients at the bottom of the cooking cup from being unable to be lifted and thus avoiding scorching at the bottom.

[0063] It should be noted that the proximal ends of the first blade 2 and the second blade 3 are connected to the mounting portion 1, so that their heights are approximately the same, and the first blade 2 and the second blade 3 are arranged at intervals along the circumference of the mounting portion 1.

[0064] In some embodiments, the first blade 2 has a downward-facing first cutting edge bevel 24, and the second blade 3 has a downward-facing or upward-facing second cutting edge bevel 33.

[0065] The first blade 2 can throw the food downwards through the first blade slope 24, and the second blade 3 can throw the food downwards or upwards through the second blade slope 33, which effectively improves the disturbance of the food flow, resulting in better crushing efficiency and effect, fewer bubbles, and lower noise.

[0066] For example, such as Figure 6 As shown, the first blade 2 has a downward-facing first cutting edge bevel 24, and the second blade 3 has a downward-facing second cutting edge bevel 33, as... Figure 8 and Figure 9 As shown, the first blade 2 has a downward-facing first cutting edge bevel 24, and the second blade 3 has an upward-facing second cutting edge bevel 33.

[0067] In some embodiments, the second blade 3 is divided into a root portion 31 and a tip portion 32 in the direction away from the mounting portion 1. The root portion 31 is connected to the mounting portion 1, and the tip portion 32 is bent upward relative to the root portion 31, with the included angle between the tip portion 32 and the root portion 31 being an obtuse angle.

[0068] By bending the tip 32 of the second blade 3 upwards relative to the base 31, the angle between the extension direction of the tip 32 and the bottom wall of the cooking cavity is minimized, resulting in higher pulverization efficiency of the tip 32 on the food below it. Furthermore, while maintaining a constant distance between the distal end of the tip 32 and the axis of rotation, the bending design of the tip 32 relative to the base 31 further increases the length of the side edge of the second blade 3, further enhancing the pulverization efficiency.

[0069] For example, such as Figure 4 As shown, the angle between the extension direction of the blade tip 32 and the horizontal plane is smaller than the angle between the extension direction of the blade root 31 and the horizontal plane, and the distal end of the blade tip 32 is lower than the distal end of the blade root 31.

[0070] In some embodiments, the angle of inclination of the root portion 31 relative to the mounting portion 1 towards the lower side of the mounting portion 1 is a, and the angle of inclination of the tip portion 32 relative to the mounting portion 1 towards the lower side of the mounting portion 1 is b, wherein 18°≤a≤55.5° and 4.5°≤b≤31°.

[0071] By setting a to be greater than or equal to 18° and b to be greater than or equal to 4.5°, a sufficiently large height difference between the proximal end of the blade side on the blade root 31 and the distal end of the blade tip 32 can be ensured to achieve pulverization of more food areas in the height direction. By setting a to be less than or equal to 55.5° and b to be less than or equal to 31°, while keeping the length of the second blade 3 constant, the distance between the distal end of the blade side and the inner wall of the cooking cavity is avoided from being too large, which would reduce the pulverization efficiency of food on the adjacent inner wall of the cooking cavity.

[0072] For example, the angle a of inclination of the root portion 31 towards the lower side of the mounting portion 1 relative to the mounting portion 1 can be 18°, 30° or 55.5°, and the angle b of inclination of the tip portion 32 towards the lower side of the mounting portion 1 relative to the mounting portion 1 can be 4.5°, 15° or 31°.

[0073] In some embodiments, the ratio of the length of the blade root 31 to the length of the blade tip 32 is L4, where L4 ≥ 1.45. This effectively avoids the average distance between the second blade 3 and the bottom wall of the cooking cavity being too small, resulting in less noise generated by the movement of food between the second blade 3 and the bottom wall of the cooking cavity under the impact of the second blade 3.

[0074] For example, in the projection plane orthogonal to the rotation axis of the blade 101, along the direction away from the rotation axis, the size of the root portion 31 is the length of the root portion 31, and the size of the tip portion 32 is the length of the tip portion 32. The ratio L4 of the two lengths can be 1.45, 1.6, or 2.

[0075] In some embodiments, the tilt angle of the first blade 2 relative to the mounting portion 1 is c, where 15° ≤ c ≤ 36°. By setting c to be greater than or equal to 15°, the height difference between the proximal and distal ends of the blade side on the first blade 2 can be ensured to be sufficiently large, thereby achieving pulverization of food in a larger area in the height direction. By setting c to be less than or equal to 36°, while maintaining a fixed length of the first blade 2, it is possible to avoid an excessively large distance between the distal end of the blade side and the inner wall of the cooking cavity, which would reduce the pulverization efficiency of food near the inner wall of the adjacent cooking cavity.

[0076] For example, the upward tilt angle c of the first blade 2 can be 15°, 22° or 36°.

[0077] In some embodiments, such as Figures 1-3As shown, the blade 101 has a first side 21 and a second side 22. 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. The first side 21 is the blade edge side, and the second side 22 is the blade back side. The first side 21 includes a straight segment 211 and an arc segment 212. The proximal end of the straight segment 211 is connected to the mounting part 1, the distal end of the straight segment 211 is connected to the proximal end of the arc segment 212, and the distal end of the arc segment 212 is connected to the second side 22. The arc segment 212 makes the blade edge side longer, the contact area between the blade edge side and the food larger, and the contact time longer, thus resulting in higher pulverization efficiency and better pulverization effect.

[0078] In the description of this utility model embodiment, "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.

[0079] By setting the arc segment 212, the blade width between the first side 21 and the second side 22 first increases and then decreases in the direction away from the mounting part 1. For example... Figure 2 As shown, the width of the blade 101, that is, the blade width 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.

[0080] Optionally, the distal end of the straight segment 211 connects smoothly to the proximal end of the curved segment 212, meaning there is no bend in the blade side. Here, "bend" refers to, for example, the connection between the straight segment 211 and the curved segment 212 forming a distinct angle. As a result, the blade side is smoother, making the cutting and tossing of ingredients smoother, producing fewer air bubbles and lower noise during ingredient mixing.

[0081] In some embodiments, such as Figure 3 As shown, the length of the straight line segment 211 is L1, and the length of the arc segment 212 is L2, where 9.6mm≤L1≤16.6mm, 17.1mm≤L2≤28.6mm, the ratio of the length of the straight line segment 211 to the length of the arc segment 212 is S, where 0.31≤S≤0.56; and / or, the angle between the second side 22 and the straight line segment 211 is M, where 4.5°≤M≤33°.

[0082] By limiting the length of the straight segment 211 to between 9.6 mm and 16.6 mm, especially when the mixing blade 100 is used in a non-circular cooking cavity, such as a square cooking cavity, the distal end of the straight segment 211 can be closer to the center of the side wall of the cooking cavity, resulting in better pulverization of ingredients near the center of the side wall. By setting the length of the curved segment 212 to between 17.1 mm and 28.6 mm, when the curved segment 212 moves to the corner of the cooking cavity, it has a greater pulverization length for ingredients at the corner, thus improving the pulverization efficiency and effect for that part of the ingredients. By setting 4.5°≤M≤33°, on the one hand, it can be ensured that the proximal end of the blade 101 has sufficient width, making the connection between the blade 101 and the mounting part 1 less prone to bending and deformation. On the other hand, it can also avoid the maximum width of the blade 101 being too large due to an excessively large angle between the two, which would cause excessive noise.

[0083] For example, the length L1 of the straight segment 211 can be 9.6 mm, 13 mm, or 16.6 mm, and the length L2 of the arc segment 212 can be 17.1 mm, 22 mm, or 28.6 mm. The ratio of the length of the straight segment 211 to the length of the arc segment 212 can be 0.31, 0.4, or 0.56. The angle M between the second side 22 and the straight segment 211 can be 4.5°, 13°, 21°, or 33°.

[0084] In some embodiments, such as Figure 3 As shown, the arc segment 212 includes a first arc segment 2121 and a second arc segment 2122. The first arc segment 2121 connects the second arc segment 2122 and the straight line segment 211. The second arc segment 2122 connects to the second side 22. The radius of curvature of the first arc segment 2121 is R1, and the radius of curvature of the second arc segment 2122 is R2, where R1≥24.8mm and 8.5mm≤R2≤16.7mm.

[0085] By setting the arc segment 212 to include a first arc segment 2121 and a second arc segment 2122 whose radius of curvature decreases in the direction away from the mounting part 1, the width of the blade 101 increases and then decreases again. The second arc can be used as a transition segment between the first side 21 and the second side 22, so that the first side 21 and the second side 22 transition smoothly, and the blade extension length can be longer, thereby improving the crushing and tossing effect on food and making the blade 101 less prone to deformation.

[0086] In some embodiments, the ratio of the length of the first arc segment 2121 to the length of the first side 21 is L3, wherein 0.49≤L3≤0.84.

[0087] By setting 0.49≤L3≤0.84, we can ensure that the first arc segment 2121 has sufficient length to extend the blade length. On the other hand, we can also ensure that the blade 101 has sufficient strength.

[0088] For example, the radius of curvature R1 of the first arc segment 2121 can be 24.8 mm, 26 mm, or 28.2 mm, and the radius of curvature R2 of the second arc segment 2122 can be 8.5 mm, 12 mm, or 16.7 mm. The ratio L3 of the length of the first arc segment 2121 to the length of the first side 21 can be 0.49, 0.65, or 0.84.

[0089] In some embodiments, the blade 101 is provided with a pressure relief hole 23, the width of which first increases and then decreases along the direction away from the mounting portion 1. During the rotation of the blade 101, water can flow through the pressure relief hole 23 to balance the pressure on the upper and lower sides of the blade 101, effectively reducing the probability of cavitation. The pressure relief hole 23 can also cut and break down cavitation, preventing cavitation from accumulating and generating excessive noise. Furthermore, the change in the width of the pressure relief hole 23 matches the change in the width of the blade 101, thereby enabling the pressure relief hole 23 to adaptively balance the pressure difference in any region along the length of the blade 101, effectively reducing the noise generated when grinding and pulverizing food.

[0090] For example, such as Figures 1-3 As shown, each blade 101 is provided with a pressure relief hole 23. On a plane orthogonal to the rotation axis of the blade 101, the projected outer contour of the pressure relief hole 23 is the same as the projected outer contour of the blade 101.

[0091] In some embodiments, such as Figure 3 As shown, the first side 21 is the blade side. 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 d, and the distance between the second outline segment and the second side 22 is e, where d > e. When the blade rotates at high speed, the blade side experiences greater impact strength than the blade back side. By setting d to be greater than e, the structural strength of the blade is ensured, and the area of ​​the pressure relief hole is effectively increased to better achieve noise reduction.

[0092] In some embodiments, such as Figure 3 As shown, the first side 21 is the blade side, and 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 d, and the distance between the second outline segment and the second side 22 is e, where d > e, and 2.4mm ≤ d ≤ 8.8mm, 1.8mm ≤ e ≤ 8.8mm.

[0093] By setting d to be greater than or equal to 2.4 mm and e to be greater than or equal to 1.8 mm, the solid part of the blade 101 can be ensured to have 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 d to be less than or equal to 8.8 mm and e 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.

[0094] For example, the distance d between the first contour line segment and the first side 21 can be 2.4mm, 4mm, 6mm or 8.8mm, and the distance e between the second contour line segment and the second side 22 can be 1.8mm, 3.8mm or 8.8mm.

[0095] In some embodiments, the ratio of the area of ​​the pressure relief hole 23 to the area of ​​the blade 101 is L5, where 0.12 ≤ L5 ≤ 0.65. This ensures, on the one hand, that the solid portion of the blade 101 has sufficient width and strength, thus improving its service life; and on the other hand, it ensures that the pressure relief hole 23 has a sufficiently large area, so that the blade 101 has a better noise reduction effect and improves the smoothness of food flow through the pressure relief hole 23.

[0096] 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 101, and the area of ​​the blade 101 is the area of ​​the outer contour of the projection of the blade 101 onto a projection plane orthogonal to the rotation axis of the blade 101. The ratio L5 of the area of ​​the pressure relief hole 23 to the area of ​​the blade 101 can be 0.12, 0.3, or 0.65.

[0097] In some embodiments, the blade 101 is twisted relative to the mounting portion 1 about its length, and the twist angle of the blade 101 is f, where 0.5° ≤ f ≤ 25°. By setting f to be greater than or equal to 0.5°, the blade 101 can use its upper or lower side to assist in agitating and guiding the food during rotation, making the food flow more freely and thus more efficiently crushed by the side edge of the blade 101. By setting f to be less than or equal to 25°, the blade 101 is effectively prevented from being deformed or damaged due to excessive impact from the food during high-speed rotation.

[0098] For example, the torsion angle f of the blade 101 can be 0.5°, 5°, 15°, or 25°. The first blade 2 and the second blade 3 can both torsion simultaneously in the same direction. Optionally, the first blade 2 can torsion while the second blade 3 does not, or the first blade 2 can not torsion while the second blade 3 torsion.

[0099] In some embodiments, the first blade 2 and the second blade 3 are alternately arranged along the circumference of the mounting portion 1. The first blade 2 are arranged in pairs and the two first blades 2 in each pair are arranged symmetrically with respect to the center of the mounting portion 1. The second blade 3 are arranged in pairs and the two second blades 3 in each pair are arranged symmetrically with respect to the center of the mounting portion 1.

[0100] The two first blades 2 and the two second blades 3 work together to pulverize the food. At the same rotation speed, the food is pulverized by the first blades 2 and the second blades 3 in sequence, thus achieving higher pulverization efficiency.

[0101] For example, such as Figure 2 , Figure 6 , Figure 8 and Figure 9 As shown, there is a pair of first blades 2 and second blades 3, with two first blades 2 and two second blades 3 arranged alternately along the circumference of the mounting portion 1. The embodiments of this utility model are not limited to this, and the number of first blades 2 and second blades 3 is not limited to this. An appropriate number of first blades 2 and second blades 3 can be provided as needed. Preferably, the number of first blades 2 and second blades 3 is the same and they are arranged alternately along the circumference of the mounting portion 1. Figure 2 As shown, there is a second blade 3 between two adjacent first blades 2, and a first blade 2 between two connected second blades 3. Optionally, two first blades 2 can be grouped together, and two second blades 3 can be grouped together, with one group of first blades 2 and one group of second blades 3 arranged alternately.

[0102] like Figure 7 As shown, the mixing blade assembly 200 of this embodiment includes a mixing and pulverizing blade 100 and a blade shaft 4. The mixing and pulverizing blade 100 can be the same as the mixing and pulverizing blade 100 described in the previous embodiment. The mounting part 1 is mounted on the blade shaft 4. In this embodiment, the mixing blade assembly achieves high pulverizing efficiency and good pulverizing effect by first increasing and then decreasing the width of the blade 101 in the mixing and pulverizing blade 100 in the direction away from the mounting part 1.

[0103] In some embodiments, the mixing blade assembly 200 further includes a rotating shaft, to which the blade shaft 4 is detachably assembled. By detachably connecting the blade shaft 4 to the rotating shaft, disassembly and assembly are facilitated, thereby facilitating cleaning, and replacement is convenient when the blade shaft 4 or the mixing and pulverizing blade 100 is damaged.

[0104] For example, the rotating shaft is rotatably mounted at the bottom of the blending cup, and the blade shaft 4 can be plugged into the rotating shaft, or the blade shaft 4 can be screwed into the rotating shaft, etc. In a specific embodiment, the rotating shaft may be provided with a drive section, which includes a plurality of edges extending in the vertical direction and deflecting circumferentially, and the deflection direction of the plurality of edges from top to bottom is opposite to the rotation direction of the blending blade assembly 200. The blade shaft 4 is provided with a drive hole that matches the drive section, and the drive hole includes a plurality of edges extending vertically in the vertical direction. The blade shaft 4 and the rotating shaft are detachably connected through the cooperation of the drive hole and the drive section.

[0105] In some embodiments, the shaft may be directly connected to the motor; in other embodiments, the shaft may be connected to the motor via a coupling.

[0106] The food processor of this utility model embodiment includes the mixing and pulverizing blade 100 or the mixing blade assembly 200 of the above embodiment.

[0107] The food processor assembly of this embodiment includes a food processor cup and a mixing blade or a mixing blade assembly as described above. The mixing blade 100 is suitable for placement or installation in the food processor cup's food processing chamber, especially a non-circular food processing chamber, which can further improve the mixing and pulverizing effect and reduce noise.

[0108] The food processor of this embodiment includes a main unit and a blending blade or a blending blade assembly or a food processor cup assembly as described in the above embodiments. The main unit contains a motor for driving the blending blade to rotate and blend the ingredients in the food processor cup.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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); A plurality of blades (101) are connected to the mounting portion (1). The plurality of blades (101) are arranged circumferentially at intervals along the mounting portion (1). The width of the blades (101) first increases and then decreases in the direction away from the mounting portion (1). The plurality of blades (101) include a first blade (2) and a second blade (3). The first blade (2) is inclined toward the upper side of the mounting portion (1) relative to the mounting portion (1), and the second blade (3) is inclined toward the lower side of the mounting portion (1) relative to the mounting portion (1). At least one of the first blade (2) and the second blade (3) has a downward-facing cutting edge.

2. The mixing and pulverizing blade (100) according to claim 1, characterized in that, The second blade (3) is divided into a root portion (31) and a tip portion (32) in a direction away from the mounting portion (1). The root portion (31) is connected to the mounting portion (1). The tip portion (32) is bent upward relative to the root portion (31) and the included angle between the tip portion (32) and the root portion (31) is an obtuse angle. And / or, the first blade (2) has a downward-facing first cutting edge bevel (24), and the second blade (3) has a downward-facing or upward-facing second cutting edge bevel (33).

3. The stirring and pulverizing blade (100) according to claim 2, characterized in that, The angle of inclination of the root portion (31) relative to the mounting portion (1) towards the lower side of the mounting portion (1) is a, and the angle of inclination of the tip portion (32) relative to the mounting portion (1) towards the lower side of the mounting portion (1) is b, wherein 18°≤a≤55.5°, 4.5°≤b≤31°.

4. The stirring and pulverizing blade (100) according to claim 2, characterized in that, The ratio of the length of the root portion (31) to the length of the tip portion (32) is L4, where L4 ≥ 1.

45.

5. The mixing and pulverizing blade (100) according to claim 1, characterized in that, The first blade (2) is tilted at an angle c relative to the mounting part (1), where 15°≤c≤36°.

6. The stirring and pulverizing blade (100) according to claim 1, characterized in that, The blade (101) has a first side (21) and a second side (22). 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). The first side (21) is the cutting edge side, and the second side (22) is the back side. The first side (21) includes a straight segment (211) and an arc segment (212). The proximal end of the straight segment (211) is connected to the mounting part (1), the distal end of the straight segment (211) is connected to the proximal end of the arc segment (212), and the distal end of the arc segment (212) is connected to the second side (22).

7. The stirring and pulverizing blade (100) according to claim 6, characterized in that, The distal end of the straight segment (211) connects to the proximal end of the arc segment (212) and transitions smoothly.

8. The stirring and pulverizing blade (100) according to claim 6, characterized in that, The length of the straight segment (211) is L1, and the length of the arc segment (212) is L2, wherein 9.6mm≤L1≤16.6mm, 17.1mm≤L2≤28.6mm, the ratio of the length of the straight segment (211) to the length of the arc segment (212) is S, wherein 0.31≤S≤0.56; and / or, the angle between the second side (22) and the straight segment (211) is M, wherein 4.5°≤M≤33°.

9. The stirring and pulverizing blade (100) according to claim 6, characterized in that, The arc segment (212) includes a first arc segment (2121) and a second arc segment (2122). The first arc segment (2121) is connected between the second arc segment (2122) and the straight line segment (211). The second arc segment (2122) is connected to the second side (22). The radius of curvature of the first arc segment (2121) is R1, and the radius of curvature of the second arc segment (2122) is R2, wherein R1≥24.8mm, 8.5mm≤R2≤16.7mm, and / or; the ratio of the length of the first arc segment (2121) to the length of the first side (21) is L3, wherein 0.49≤L3≤0.

84.

10. The mixing and pulverizing blade (100) according to any one of claims 1-9, characterized in that, The blade (101) is provided with a pressure relief hole (23), the width of which first increases and then decreases in the direction away from the mounting part (1).

11. The stirring and pulverizing blade (100) according to claim 10, characterized in that, The blade (101) has a first side (21) and a second side (22). 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). The first side (21) is the cutting edge side. 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 d, and the distance between the second outline segment and the second side (22) is e, where d > e; and / or, 2.4 mm ≤ d ≤ 8.8 mm, 1.8 mm ≤ e ≤ 8.8 mm.

12. The stirring and pulverizing blade (100) according to claim 10, characterized in that, The ratio of the area of ​​the pressure relief hole (23) to the area of ​​the blade (101) is L5, where 0.12≤L5≤0.

65.

13. The stirring and pulverizing blade (100) according to any one of claims 1-9, characterized in that, The first blade (2) and the second blade (3) are alternately arranged along the circumference of the mounting part (1). The first blades (2) are arranged in pairs and the two first blades (2) in each pair are arranged symmetrically with respect to the center of the mounting part (1). The second blades (3) are arranged in pairs and the two second blades (3) in each pair are arranged symmetrically with respect to the center of the mounting part (1).

14. The stirring and pulverizing blade (100) according to any one of claims 1-9, characterized in that, The blade (101) is twisted relative to the mounting part (1) about the length direction of the blade (101), and the twist angle of the blade (101) is f, where 0.5°≤f≤25°.

15. A stirring blade assembly (200), characterized in that, It includes a stirring and pulverizing blade (100) and a blade shaft (4), wherein the stirring and pulverizing blade (100) is the stirring and pulverizing blade (100) according to any one of claims 1-14, and the mounting part (1) is mounted on the blade shaft (4).

16. The stirring blade assembly (200) according to claim 15, characterized in that, The stirring blade assembly (200) also includes a rotating shaft, to which the blade shaft (4) is detachably assembled.

17. A cooking cup assembly, characterized in that, Includes the mixing and pulverizing blade (100) according to any one of claims 1-14 or the mixing blade assembly (200) according to claim 15 or 16.

18. A food processor, characterized in that, Includes the mixing blade (100) according to any one of claims 1-14, or the mixing blade assembly (200) according to claim 15 or 16, or the cooking cup assembly according to claim 17.

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