Knife assembly and food processor with same

Abstract

The invention discloses a knife assembly and a food processor with the knife assembly, the knife assembly comprises a knife shaft and a plurality of blades, at least one of the plurality of blades is a first blade, the first blade comprises a body part and a bending part, one end of the body part is connected with the knife shaft, and the other end of the body part extends outwards along the radial direction of the knife shaft; one end of the bent part is connected with the other end of the body part, the other end of the bent part extends outwards in the radial direction of the cutter shaft and extends towards the other blades in the axial direction of the cutter shaft, and the blades are arranged on the cutter shaft in an injection molding mode. According to the knife assembly, the first blade is arranged, the first blade is provided with the body part and the bent part, the bent part can drive food materials to roll upwards, the food materials are prevented from being attached to the side wall of the stirring cavity, and therefore the food materials can be fully flapped and stirred.

Description

Technical Field

[0001] The present invention relates to the field of food processing, and in particular to a knife assembly and a food processor having the same. Background Art

[0002] When a meat grinder in the related art performs a stirring operation, after the food ingredients are initially cut, the food ingredients are likely to adhere to the bottom and side walls of the stirring cavity, so that large particles or large pieces of food ingredients at the bottom of the stirring cavity cannot be fully beaten or stirred, thereby affecting the stirring and crushing effect of the food ingredients. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present invention is to provide a knife assembly, which can prevent food ingredients from adhering to the side wall of the stirring cavity and can achieve full beating and stirring of the food ingredients.

[0004] The knife assembly according to an embodiment of the present invention includes: a knife shaft; a plurality of blades, the plurality of blades are connected to the knife shaft, at least one of the plurality of blades is a first blade, the first blade includes a body portion and a bent portion, one end of the body portion is connected to the knife shaft and the other end extends radially outward along the knife shaft, one end of the bent portion is connected to the other end of the body portion, and the other end of the bent portion extends radially outward along the knife shaft and axially along the knife shaft toward the remaining blades, and the plurality of blades are injection-molded on the knife shaft.

[0005] In the knife assembly according to an embodiment of the present invention, by making at least one of the plurality of blades a first blade, and making the first blade have a body portion and a bent portion, and the other end of the bent portion extends radially outward along the knife shaft and axially along the knife shaft toward the remaining blades, the bent portion can drive the food ingredients to roll upward, preventing the food ingredients from adhering to the side wall of the stirring cavity, thereby being able to achieve full beating and stirring of the food ingredients.

[0006] In addition, the knife assembly according to the present invention may further have the following additional technical features:

[0007] For the knife assembly according to an embodiment of the present invention, a plane passing through the free end of the bent portion and perpendicular to the axis of the knife shaft is a first plane. In the first plane, the minimum distance from the free end of the bent portion to the side wall of the stirring chamber is d1, and the inner diameter of the stirring chamber is r1, satisfying: 0.03 ≤ d1 / r1 ≤ 0.28, and / or, the bent portion is connected to the other end of the body portion and extends obliquely towards the peripheral wall and the top wall of the stirring chamber. A plane passing through the free end of the bent portion and perpendicular to the axis of the knife shaft is a first plane. In the first plane, the minimum distance from the free end of the bent portion to the side wall of the stirring chamber is d1, and the inner diameter of the stirring chamber is r1, satisfying: 0.03 ≤ d1 / r1 ≤ 0.28.

[0008] In some embodiments of the present invention, the connection position between the bent portion and the body portion is a bending position. A plane passing through the bending position and perpendicular to the axis of the knife shaft is a second plane. In the second plane, the minimum distance from the bending position to the side wall of the stirring chamber is d2, and the inner diameter of the stirring chamber is r2, and it satisfies: 0.03 ≤ d2 / r2 ≤ 0.5.

[0009] In some embodiments of the present invention, the minimum distance from the first plane to the bottom wall of the stirring chamber is h, and the minimum distance from the bottom wall of the stirring chamber to the top wall of the stirring chamber is H, satisfying: 0.03 ≤ h / H ≤ 0.4.

[0010] In some embodiments of the present invention, the included angle α between the plane where the side wall of the stirring chamber is located and the plane where the side surface of the bent portion facing the side wall is located satisfies: 1° ≤ α ≤ 60°.

[0011] In some embodiments of the present invention, the knife assembly further includes a protective sleeve, and the protective sleeve is sleeved on at least a part of the bent portion from the free end of the bent portion.

[0012] In some embodiments of the present invention, the side wall of the stirring chamber is provided with flow disturbing ribs, and the flow disturbing ribs are in interference fit with the protective sleeve.

[0013] In some embodiments of the present invention, the body portion further includes a horizontal section and a bent section. One end of the bent section is connected to the knife shaft, and the other end extends obliquely towards the peripheral wall and the bottom wall of the stirring chamber. One end of the horizontal section is connected to the other end of the bent section, and the other end of the horizontal section is connected to the bent portion along the radial direction of the knife shaft outwards.

[0014] In some embodiments of the present invention, the other end of the bent portion extends obliquely towards the top wall and the side wall of the stirring chamber.

[0015] In some embodiments of the present invention, the plurality of blades are arranged staggeredly in the axial direction of the cutter shaft, and the first blade is located on one side of the remaining blades facing the bottom wall of the stirring cavity.

[0016] In some embodiments of the present invention, one of the plurality of blades is a second blade, the first blade is located on one side of the second blade facing the bottom wall of the stirring cavity, and in the axial direction of the cutter shaft, the minimum distance between the first plane and the second blade is C, and the distance between the free end of the bending portion and the bending position of the first blade is c, satisfying: 0.5 ≤ c / C ≤ 0.99.

[0017] In some embodiments of the present invention, at least one of the blades located on the side of the first blade away from the bottom wall of the stirring cavity is an arc-shaped blade. In the projection plane perpendicular to the axis of the cutter shaft, the body portion extends along a straight line, and the arc-shaped blade extends along an arc.

[0018] In some embodiments of the present invention, two first blades are provided.

[0019] The present invention also provides a food processor having the cutter assembly of the above embodiments.

[0020] The food processor according to the embodiments of the present invention includes a cup assembly and a cutter assembly. The cup assembly has a stirring cavity, and the cutter assembly is disposed in the stirring cavity.

[0021] In the food processor according to the embodiments of the present invention, by providing the food processor of the above embodiments in the stirring cavity, when the cutter shaft rotates, the plurality of blades can beat or stir the ingredients in the stirring cavity, which is beneficial to processing the larger-particle ingredients in the stirring cavity into smaller-particle ingredients, thereby facilitating further processing of the ingredients.

[0022] Optionally, the food processor may be a soybean milk machine, a meat grinder, etc., which is not limited here.

[0023] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 is a cross-sectional view of a food processor according to an embodiment of the present invention;

[0026] Figure 2 is a cross-sectional view of a food processor according to an embodiment of the present invention, in which the cup cover is not placed;

[0027] Figure 3 is Figure 2 A cross-sectional view along line A-A in

[0028] Figure 4 is Figure 2 A cross-sectional view along line B-B in

[0029] Figure 5 is Figure 2 A schematic diagram of the knife assembly in

[0030] Figure 6 is Figure 5 A top view of the knife assembly in

[0031] Figure 7 is a cross-sectional view of a food processor (the main body part has a horizontal section and a bent section) according to an embodiment of the present invention.

[0032] Reference numerals:

[0033] 100, food processor;

[0034] 10, knife assembly; 1, knife shaft; 2, blade; 21, first blade; 211, main body part; 212, bent part; 213, free end; 214, bending position; 22, second blade; 23, arc-shaped blade; 215, horizontal section; 216, bent section;

[0035] 31, first plane; 32, second plane;

[0036] 40, cup assembly; 41, stirring cavity; 411, side wall; 412, bottom wall; 42, cup body; 43, cup cover;

[0037] 51, turbulence rib; 52, protective sleeve. Detailed implementation manners

[0038] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0040] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Next, refer to Figures 1 - 7 to describe the knife assembly 10 according to an embodiment of the present invention.

[0042] The knife assembly 10 according to an embodiment of the present invention includes a knife shaft 1 and a plurality of blades 2. The plurality of blades 2 are connected to the knife shaft 1. Taking the food processor 100 in which the knife assembly 10 is provided as an example, the food processor 100 includes a cup assembly 40. The cup assembly 40 has a stirring cavity 41. The knife assembly 10 is disposed in the stirring cavity 41. When the knife shaft 1 rotates, the plurality of blades 2 can beat or stir the ingredients in the stirring cavity 41, which is beneficial to processing the larger-particle ingredients in the stirring cavity 41 into smaller-particle ingredients, thereby facilitating further processing of the ingredients.

[0043] Further, at least one of the plurality of blades 2 is a first blade 21. The first blade 21 includes a body portion 211 and a bent portion 212. One end of the body portion 211 is connected to the knife shaft 1 and the other end extends radially outward along the knife shaft 1. One end of the bent portion 212 is connected to the other end of the body portion 211, and the other end of the bent portion 212 extends radially outward along the knife shaft 1 and axially along the knife shaft 1 toward the remaining blades 2, which helps the bent portion 212 to press out the large pieces of ingredients at the side wall 411 and can drive the ingredients to roll upward. And the plurality of blades 2 are injection-molded on the knife shaft 1, with a simple production process and low processing cost.

[0044] For example, the bent portion 212 is connected to the other end of the main body portion 211 and extends obliquely toward the peripheral wall and the top wall of the stirring cavity 41. That is to say, there may be only one first blade 21 among the plurality of blades 2, or there may be two first blades 21.

[0045] Refer to the Figures 1 - 6 In a specific example shown in the attached drawings, the knife assembly 10 of the food processor 100 has four blades 2. The blade 2 at the bottommost is the first blade 21. One end of the first blade 21 is connected to the knife shaft 1, and the other end extends linearly radially outward along the knife shaft 1. One end of the bent portion 212 is connected to the other end of the main body portion 211, and the other end of the bent portion 212 continues to extend radially outward and inclines upward. Thus, when the food ingredients fall into the stirring cavity 41, the main body portion 211 of the first blade 21 located at the bottom and extending radially outward can better beat and stir the bottom of the food ingredients. The main body portion 211 extending radially outward and the bent portion 212 extending axially toward the other blades 2 can better prevent the food ingredients from sticking to the bottom wall 412 and the side wall 411 of the stirring cavity 41, so that the food ingredients can be fully beaten and stirred in the stirring cavity 41.

[0046] It should be noted here that the above specific example is only for describing the first blade 21 having the main body portion 211 and the bent portion 212 by way of example, rather than a limitation to the present application. It can be understood that, axially along the knife shaft 1, the first blade 21 may not be located at the bottommost. It can be set according to actual needs here and is not limited here. And when the first blade 21 is at other positions axially along the knife shaft 1, since the first blade 21 has the main body portion 211 and the bent portion 212, the first blade 21 can better beat and stir the food ingredients in the stirring cavity 41 and at least can prevent the food ingredients from sticking to the side wall 411 of the stirring cavity 41.

[0047] According to the knife assembly 10 of the embodiment of the present invention, by making at least one of the plurality of blades 2 be the first blade 21 and making the first blade 21 have the main body portion 211 and the bent portion 212, the other end of the bent portion 212 extends radially outward along the knife shaft 1 and axially along the knife shaft 1 toward the other blades 2. The bent portion 212 can drive the food ingredients to roll upward, preventing the food ingredients from sticking to the side wall 411 of the stirring cavity 41, so as to be able to achieve full beating and stirring of the food ingredients.

[0048] In some embodiments, a plane passing through the free end 213 of the over-bending portion 212 and perpendicular to the axis of the cutter shaft 1 is the first plane 31. In the first plane 31, the minimum distance from the free end 213 of the bending portion 212 to the side wall 411 of the stirring cavity 41 is d1, and the inner diameter of the stirring cavity 41 is r1, satisfying: 0.03 ≤ d1 / r1 ≤ 0.28. It should be noted that the free end 213 of the bending portion 212 refers to the end of the bending portion 212 far from the body portion 211. It can be understood that since the end of the bending portion 212 also has a certain thickness, therefore, in order to facilitate the description of the beating and stirring of the food materials at the edge of the bending portion 212, the "minimum distance from the free end 213 of the bending portion 212 to the side wall 411 of the stirring cavity 41" is used to refer to the distance between the beating position at the edge of the bending portion 212 and the side wall 411 of the stirring cavity 41.

[0049] When the relationship between the distance d1 between the beating position at the edge of the bending portion 212 and the side wall 411 of the stirring cavity 41 and the inner diameter r1 of the stirring cavity 41 satisfies the above relational expression, on the one hand, an appropriate spacing is reserved between the bending portion 212 and the side wall 411, which can avoid interference between the bending portion 212 and the side wall 411 of the stirring cavity 41; on the other hand, an appropriate spacing is reserved between the bending portion 212 and the side wall 411, which helps the bending portion 212 to push the food materials downward and roll upward under the drive of the bending portion 212. It helps the bending portion 212 to press out the large pieces of food materials at the side wall 411 and can drive the food materials to roll upward. It can not only beat and stir the food materials well, but also avoid the food materials from sticking to the side wall 411 of the stirring cavity 41, so as to realize the full beating and stirring of the food materials.

[0050] If the distance between the bending portion 212 and the side wall 411 of the stirring cavity 41 is too large, the first blade 21 cannot provide an inward rolling force for the food on the side wall 411, and the food will deposit on the side wall 411, affecting the food processing effect.

[0051] If the distance between the bending portion 212 and the side wall 411 of the stirring cavity 41 is too small, the first blade 21 may touch the side wall 411, which is not conducive to the operation of the cutter assembly 10.

[0052] Optionally, d1 / r1 can be 0.03, 0.04, 0.05, 0.06, 0.1, 0.2, 0.25, 0.26, 0.28, and there is no limitation here.

[0053] In some embodiments, the connection between the bent portion 212 and the body portion 211 is the bending position 214. A plane passing through the bending position 214 and perpendicular to the axis of the cutter shaft 1 is the second plane 32. In the second plane 32, the minimum distance from the bending position 214 to the side wall 411 of the stirring chamber 41 is d2, and the inner diameter of the stirring chamber 41 is r2, and it satisfies: 0.03 ≤ d2 / r2 ≤ 0.5. Wherein, the bent portion 212 can stir the food materials near the side wall 411 of the stirring chamber 41, preventing the food materials from sticking to the side wall 411 of the stirring chamber 41. Even to a certain extent, it can make the food materials near the side wall 411 of the stirring chamber 41 be stirred towards the direction of the cutter shaft 1. Therefore, the "minimum distance from the bending position 214 of the bent portion 212 to the side wall 411 of the stirring chamber 41" here refers to the effective stirring position of the end of the bent portion 212 near the body portion 211. For the bending position 214, refer to the attached Figure 2 As shown, there is a bending angle between the body portion 211 and the bent portion 212, and the tip of the bending angle is the bending position 214. In order to avoid stress concentration at the tip of the bending angle, usually, the tip of the bending angle is processed with an arc transition to make the connection between the body portion 211 and the bent portion 212 more reliable.

[0054] When the present application satisfies the above relational expression, an appropriate spacing is reserved between the bending position 214 and the side wall 411, which helps the bent portion to push the food materials downward and lift and tumble upward under the drive of the bent portion 212. The bent portion 212 can better stir the food materials near the side wall 411 of the stirring chamber 41. Even it can make the food materials near the side wall 411 of the stirring chamber 41 be stirred towards the direction of the cutter shaft 1, so that the side wall 411 of the stirring chamber 41 is not easily adhered to the side wall 411 of the stirring chamber 41, and makes the food materials in the stirring chamber 41 always in a cyclic stirring process from the center of the cutter shaft 1 towards the side wall 411 of the stirring chamber 41 and then from the side wall 411 of the stirring chamber 41 towards the cutter shaft 1, so that the blade 2 can better beat, cut and stir the food materials.

[0055] Optionally, d2 / r2 can be 0.03, 0.04, 0.05, 0.06, 0.1, 0.2, 0.3, 0.4, 0.5, and there is no limitation here.

[0056] In some embodiments of the present invention, the minimum distance from the first plane 31 to the bottom wall 412 of the stirring chamber 41 is h, and the minimum distance from the bottom wall 412 of the stirring chamber 41 to the top wall of the stirring chamber 41 is H, satisfying: 0.03 ≤ h / H ≤ 0.4. Satisfying the above relationship can enable the first blade 21 to better stir the ingredients near the bottom wall 412 of the stirring chamber 41. It can be understood that during the rotation of the first blade 21, the main body portion 211 can better beat and stir the ingredients near the bottom of the stirring chamber 41, so that the ingredients are not easily adhered to the bottom wall 412 of the stirring chamber 41. Further, as the first blade 21 continues to rotate, under the action of centrifugal force, the ingredients will be transported towards the outer periphery of the main body portion 211. When the ingredients are transported to the outer periphery of the main body portion 211, the bent portion can further beat and stir the ingredients near the edge of the main body portion 211, and the inclined upward bent portion 212 can also better transport the ingredients continuously transported towards the radial outer side under the action of centrifugal force towards the direction of the knife shaft 1, so that the ingredients can be fully beaten and stirred in the stirring chamber 41, and the ingredients are not easily adhered to the bottom wall 412 and the side wall 411 of the stirring chamber 41.

[0057] Optionally, h / H can be 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2, 0.3, and there is no limitation here.

[0058] In some embodiments of the present invention, the included angle α between the plane where the side wall 411 of the stirring chamber 41 is located and the plane where the side surface of the bent portion 212 facing the side wall 411 is located satisfies: 1° ≤ α ≤ 60°. Satisfying the above embodiments, the bent portion 212 can better beat and stir the ingredients near the side wall 411 of the stirring chamber 41, and to a certain extent, can transport the ingredients near the side wall 411 of the stirring chamber 41 towards the direction of the knife shaft 1.

[0059] Optionally, α can be 1°, 2°, 3°, 4°, 10°, 20°, 30°, 40°, 50°, 60°, and there is no limitation here.

[0060] Refer to an attached Figure 1 In a specific example shown, there is an included angle between the side wall 411 of the stirring chamber 41 and the axis of the knife shaft 1, and the included angle is an acute angle.

[0061] In some embodiments of the present invention, the knife assembly 10 further includes a protective sleeve 52, and the protective sleeve 52 is sleeved on at least a part of the bent portion 212 from the free end 213 of the bent portion 212. Thus, by sleeving the protective sleeve 52 on the bent portion 212, not only can the effective stirring range of the bent portion 212 be increased, but also the interference between the bent portion 212 and the side wall 411 of the stirring chamber 41 can be avoided, and the bent portion 212 can be better protected, so that the bent portion 212 is not easily damaged.

[0062] Optionally, the side wall 411 of the stirring cavity 41 is provided with turbulence ribs 51. By providing the turbulence ribs 51, the food ingredients can be continuously tumbled in the stirring cavity 41, which is beneficial to the food ingredients being fully beaten and stirred. Further, the turbulence ribs 51 are in interference fit with the protective sleeve 52. This can not only further stir the food ingredients near the side wall 411 of the stirring cavity 41, but also the protective sleeve 52 can better stir the food ingredients at the dead angle position between the turbulence ribs 51 and the side wall 411 of the stirring cavity 41, avoiding the food ingredients staying at the dead angle position.

[0063] In some embodiments of the present invention, the main body portion 211 further includes a horizontal section 215 and a bending section 216. One end of the bending section 216 is connected to the cutter shaft 1, and the other end extends obliquely towards the peripheral wall and the bottom wall 412 of the stirring cavity 41. One end of the horizontal section 215 is connected to the other end of the bending section 216, and the other end of the horizontal section 215 extends radially outwards along the cutter shaft 1 and is connected to the bending portion 212. Refer to the Figure 7 specific example shown. When the first blade 21 extends from the cutter shaft 1 towards the radially outer side, it first extends obliquely downwards for a certain distance (i.e., the bending section 216), then extends radially outwards in a straight line for a certain distance (i.e., the horizontal section 215), and then extends upwards for a certain distance (i.e., the bending portion 212). Such a design can better stir the food ingredients. Especially when the first blade 21 is arranged near the bottom wall 412 of the stirring cavity 41, it can better stir the food ingredients near the bottom wall 412 of the stirring cavity 41, avoiding the food ingredients sticking to the bottom wall 412 of the stirring cavity 41.

[0064] In some embodiments of the present invention, the multiple blades 2 are arranged staggeredly in the axial direction of the cutter shaft 1. The multiple blades 2 can better beat and stir the food ingredients in the stirring cavity 41. Further, the first blade 21 is located on the side facing the bottom wall 412 of the stirring cavity 41 of the remaining blades 2. Thus, the first blade 21 can better stir the food ingredients near the bottom wall 412 of the stirring cavity 41, avoiding the food ingredients sticking to the bottom wall 412 of the stirring cavity 41.

[0065] Optionally, one of the multiple blades 2 is the second blade 222. The first blade 21 is located on the side facing the bottom wall 412 of the stirring cavity 41 of the second blade 222. In the axial direction of the cutter shaft 1, the minimum distance between the first plane 31 and the second blade 222 is C, and the distance between the free end 213 of the bending portion 212 and the bending position 214 of the first blade 21 is c, satisfying: 0.5 ≤ c / C ≤ 0.99. When the bending portion 212 transports the food ingredients towards the direction of the cutter shaft 1, the second blade 222 can better beat, stir and transport this part of the food ingredients, so that the food ingredients can be fully beaten and stirred.

[0066] Optionally, c / C can be 0.5, 0.6, 0.7, 0.8, 0.9, 0.99, without limitation here.

[0067] Optionally, at least one of the blades 2 located on the side of the first blade 21 away from the bottom wall 412 of the stirring cavity 41 is an arc-shaped blade 232. In the projection plane perpendicular to the axis of the knife shaft 1, the body portion 211 extends along a straight line, and the arc-shaped blade 232 extends along an arc. Refer to the attached Figures 1 - 6 As shown in a specific example, four blades 2 are arranged at intervals in the axial direction of the knife shaft 1. The blade 2 at the lower end is the first blade 21, and the three blades 2 above the first blade 21 are all arc-shaped blades 232. Through the combination of the first blade 21 and the three arc-shaped blades 232, the ingredients in the stirring cavity 41 can be better slapped and stirred.

[0068] Optionally, there are two first blades 21. In a specific example, four blades 2 are arranged at intervals in the axial direction of the knife shaft 1. The two blades 2 at the lower end are both first blades 21, and the two blades 2 above the two first blades 21 are all arc-shaped blades 232. Through the combination of the two first blades 21 and the two arc-shaped blades 232, the ingredients in the stirring cavity 41 can be better slapped and stirred.

[0069] The present invention also provides a food processor 100 having the knife assembly of the above embodiments.

[0070] As Figure 1 shown, the food processor 100 according to an embodiment of the present invention includes a cup assembly 40 and a knife assembly 10. The cup assembly 40 has a stirring cavity 41, and the knife assembly 10 is disposed in the stirring cavity 41. As Figure 1 shown, the cup assembly 20 may further include a cup body 21 and a cup lid 22. The cup body 21 defines a stirring cavity 211 that is open on one side. The cup lid 22 is disposed on the open side of the cup body 21 to open or seal the stirring cavity 211. Among them, the cup lid 22 is disposed on the open side of the cup body 21. When it is necessary to put food into the stirring cavity 211 or take food out of the stirring cavity 211, the cup lid 22 can be moved away from the open side of the cup body 21 to open the stirring cavity 211; when it is necessary to cut and stir food, the cup lid 22 is sealed on the open side of the cup body 21 to make the stirring cavity 211 in a sealed state, which can prevent splashing when the food processor 100 processes food, and thus can improve the use safety of the food processor 100. Optionally, in some specific embodiments, the cup lid 22 and the cup body 21 are detachably connected; in other embodiments, the cup lid 22 and the cup body 21 are movably connected, and the cup lid 22 can move relative to the cup body 21 to open and seal the open side of the cup body 21.

[0071] According to the food processor 100 of an embodiment of the present invention, by arranging the food processor 100 of the above embodiment in the stirring chamber 41, when the cutter shaft 1 rotates, the plurality of blades 2 can beat or stir the food materials in the stirring chamber 41, which is beneficial to processing the larger particle food materials in the stirring chamber 41 into smaller particle food materials, so as to facilitate further processing of the food materials.

[0072] Optionally, the food processor 100 may be a soymilk machine, a meat grinder, etc., which is not limited here.

[0073] The other components and operations of the cutter assembly 10 and the food processor 100 according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0074] In the description of this specification, the descriptions with reference to terms such as "some embodiments", "optionally", "further" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0075] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A knife assembly, characterized in that, Comprising: Tool shaft; A plurality of blades, the plurality of blades being connected to the tool shaft, and at least one of the plurality of blades being a first blade, The first blade includes a body portion and a bent portion. One end of the body portion is connected to the tool shaft and the other end extends radially outward along the tool shaft. One end of the bent portion is connected to the other end of the body portion, and the other end of the bent portion extends radially outward along the tool shaft and axially toward the remaining blades. The plurality of blades are injection-molded on the tool shaft.

2. The tool assembly according to claim 1, wherein A plane passing through the free end of the bent portion and perpendicular to the axis of the tool shaft is a first plane. In the first plane, the minimum distance from the free end of the bent portion to the side wall of the stirring chamber is d1, and the inner diameter of the stirring chamber is r1, satisfying: 0.03 ≤ d1 / r1 ≤ 0.28, and / or, The connection portion between the bent portion and the body portion is a bending position. A plane passing through the bending position and perpendicular to the axis of the tool shaft is a second plane. In the second plane, the minimum distance from the bending position to the side wall of the stirring chamber is d2, and the inner diameter of the stirring chamber is r2, and satisfying: 0.03 ≤ d2 / r2 ≤ 0.

5.

3. The knife assembly according to claim 2, characterized in that, The minimum distance from the first plane to the bottom wall of the stirring chamber is h, and the minimum distance from the bottom wall of the stirring chamber to the top wall of the stirring chamber is H, satisfying: 0.03 ≤ h / H ≤ 0.

4.

4. The knife assembly according to claim 2, characterized in that, The included angle α between the plane where the side wall of the stirring chamber is located and the plane where the side surface of the bent portion facing the side wall is located satisfies: 1° ≤ α ≤ 60°.

5. The knife assembly according to claim 2, wherein Further comprising a protective sleeve, the protective sleeve being sleeved on at least a part of the bent portion from the free end of the bent portion.

6. The knife assembly according to claim 5, characterized in that, The side wall of the stirring chamber is provided with turbulence ribs, and the turbulence ribs are in interference fit with the protective sleeve.

7. The knife assembly according to claim 2, characterized in that, The body portion further includes a horizontal section and a bent section. One end of the bent section is connected to the tool shaft, and the other end extends obliquely toward the peripheral wall and the bottom wall of the stirring chamber. One end of the horizontal section is connected to the other end of the bent section, and the other end of the horizontal section extends radially outward along the tool shaft and is connected to the bent portion.

8. The knife assembly according to claim 1, wherein, The other end of the bent portion extends obliquely toward the top wall and the side wall of the stirring chamber.

9. The knife assembly according to claim 2, wherein, The plurality of blades are arranged staggeredly in the axial direction of the tool shaft, and the first blade is located on the side facing the bottom wall of the stirring chamber of the remaining blades.

10. The knife assembly according to claim 9, wherein, One of the plurality of blades is a second blade, the first blade is located on the side facing the bottom wall of the stirring chamber of the second blade. In the axial direction of the tool shaft, the minimum distance from the first plane to the second blade is C, and the distance from the free end of the bent portion to the bending position of the first blade is c, satisfying: 0.5 ≤ c / C ≤ 0.

99.

11. The knife assembly according to claim 9, characterized in that, At least one of the blades located on the side of the first blade away from the bottom wall of the stirring chamber is an arc-shaped blade. In the projection plane perpendicular to the axis of the tool shaft, the body portion extends along a straight line, and the arc-shaped blade extends along an arc.

12. The knife assembly according to any one of claims 10-11, characterized in that, Two first blades are provided.

13. A food processor, characterized in that, Comprising: a cup assembly and a knife assembly according to any one of claims 1-12, the cup assembly having a stirring cavity, and the knife assembly being disposed in the stirring cavity.

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