Knife assembly, cup body assembly and food processor

Abstract

The utility model discloses a knife assembly, a cup body assembly and a food processor. The cutter assembly comprises a cutter shaft and cutters, at least three sets of cutters are arranged on the cutter shaft in the axial direction of the cutter shaft, and the roots of every two adjacent sets of cutters are arranged at intervals. Wherein the cutter located in the middle and the cutter shaft define a middle-layer crushing space in the rotating state, and at least part of at least one of the blades of the cutter located on the lower portion is bent upwards and located in the middle-layer crushing space. According to the technical scheme, the smashing effect can be improved, and good cost control is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a knife assembly, a cup assembly and a food processor. Background Art

[0002] A food processor is a machine that can process fruits, vegetables and other foods into paste-like ingredients. The food processor has a knife assembly, which separates, cuts or grinds the food under the action of a driving force.

[0003] In the related art, in order to improve the crushing and cutting effects, the driving power is usually increased, which makes the motor used to drive the knife assembly more demanding, thereby increasing the cost. Utility Model Content

[0004] The embodiments of the present application provide a knife assembly, a cup assembly and a food processor, which can improve the crushing effect and reduce the cost.

[0005] In the first aspect, the knife assembly proposed in the embodiment of the present application includes:

[0006] Axis; and

[0007] At least three groups of cutting tools are arranged on the cutting shaft along the axial direction of the cutting shaft, and the roots of two adjacent groups of cutting tools are arranged at intervals;

[0008] The tool located in the middle and the tool shaft define a middle-layer crushing space when rotating, and at least one of the blades of the tool located below is at least partially bent upward and located in the middle-layer crushing space.

[0009] In one embodiment, among the blades of the tool located at the bottom, the middle portion of at least one of the blades is bent upward and is located in the middle-layer crushing space.

[0010] In one embodiment, at least one of the blades of the tool located at the bottom comprises:

[0011] A first knife portion connected to the root of the knife and extending obliquely upward away from the knife axis; and

[0012] A second blade portion is connected to an end of the first blade portion away from the blade shaft and extends obliquely downward in a direction away from the first blade portion;

[0013] The connecting end of the first blade part and the second blade part is located above the root of the blade and in the middle-layer crushing space.

[0014] In one embodiment, the distance between one end of the first blade portion close to the blade shaft and the central axis of the blade shaft is d1, and the distance between one end of the second blade portion away from the blade shaft and the central axis of the blade shaft is d2;

[0015] Among them, 0.5≤d1 / d2≤0.7.

[0016] In one embodiment, the first blade portion is disposed at an angle θ with a horizontal plane, wherein 10°≤θ≤20°; and / or,

[0017] The second blade portion is disposed at an angle δ with a horizontal plane, wherein 30°≤δ≤50°.

[0018] In one embodiment, the tool located at the bottom includes at least two blades, and the at least two blades are centrally symmetrical about the central axis of the tool shaft.

[0019] In one embodiment, the cutter located in the middle includes at least two blades to define the middle-layer crushing space with the cutter shaft;

[0020] The blade of the tool located in the middle at least partially overlaps with the blade of the tool located below along the axial direction of the tool shaft.

[0021] In one embodiment, among the blades of the tool located in the middle, at least one blade includes a third blade portion and a fourth blade portion, wherein the third blade portion is connected to the root portion of the tool and extends radially along the tool axis, and the fourth blade portion is connected to the farthest end of the third blade portion away from the tool axis and extends downward;

[0022] The fourth knife portion at least partially overlaps with the blade of the tool located below along the axial direction of the knife shaft.

[0023] In one embodiment, among the blades of the tool located in the middle, at least one blade extends obliquely downward in a direction away from the tool axis, and at least partially overlaps with the blade of the tool located below along the axial direction of the tool axis.

[0024] In one embodiment, the tool located in the middle includes:

[0025] At least two first blades, each of the first blades is bent upward or downward and extended away from the farthest end of the blade shaft; and

[0026] At least two second blades, each of the second blades extending outwardly in a direction opposite to the bending direction of the first blade;

[0027] Wherein, along the circumference of the knife shaft, at least two of the first blades and at least two of the second blades are alternately arranged.

[0028] In one embodiment, the blade of the tool located at the top is bent upward and forms an angle of 45° to 80° with the horizontal plane.

[0029] In one embodiment, the number of blades of the tool located in the middle is greater than the number of blades of the tools located on both sides thereof; and / or,

[0030] Along the same rotation direction, the blades of two adjacent groups of the cutting tools are staggered; and / or,

[0031] At least part of the cutting edge of the blade of the tool located at the bottom faces upward, and at least part of the cutting edge of the blade of the tool located in the middle and the cutting edge of the blade of the tool located at the top all face downward.

[0032] In a second aspect, an embodiment of the present application proposes a cup body assembly, comprising a cup body, a cup seat, and a knife assembly as described in any one of the above items, wherein the cup body is connected to the cup seat, and the knife assembly is installed on the cup seat and extends into the cup body.

[0033] In a third aspect, an embodiment of the present application further provides a food processor, comprising a base assembly and a knife assembly as described in any one of the above items or a cup assembly as described in the above items;

[0034] The cup body assembly is arranged on the base assembly.

[0035] Based on the above embodiment, the knife assembly includes a knife shaft and at least three groups of knives arranged at axial intervals along the knife shaft. The at least three groups of knives can cut and crush food when the knife shaft rotates, so that the knife assembly has a larger crushing space and good food compatibility.

[0036] In the embodiment of the present application, by making at least one blade of the lower tool be located in the middle-layer crushing space in a rotating state, the food in the middle-layer crushing space can be cut and crushed, thereby increasing the overall crushing space of the knife assembly, making the knife assembly act on the food more fully and comprehensively, and at the same time avoiding the food from getting stuck in the middle-layer crushing space, thereby improving the crushing effect and further improving the compatibility of the knife assembly with the food.

[0037] The present application improves the crushing effect of the knife assembly by designing the knife shape of the knife, rather than adopting the method of increasing the output power of the driving part in the related technology. It can ensure good cost control while improving the crushing effect, and can avoid problems such as noise and vibration caused by increasing the output power, thereby ensuring the operating quality and user experience of the food processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0039] Figure 1 This is a schematic diagram of the structure of a knife assembly according to an embodiment of the present application;

[0040] Figure 2 This is a schematic structural diagram of a knife assembly according to another embodiment of the present application.

[0041] Description of Figure Numbers:

[0042] 1. Knife assembly; 10. Knife shaft; 11. First end; 12. Second end; 13. Knife seat; 14. Fastener; 15. Bushing; 20. Knife; 21. First knife; 22. Second knife; 221. First blade; 2211. Third knife section; 2213. Fourth knife section; 223. Second blade; 23. Third knife; 231. First knife section; 232. Connecting end; 233. Second knife section.

[0043] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

[0045] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0046] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0048] An embodiment of the present application proposes a food processor, which is a machine that can process fruits, vegetables and other foods into paste-like ingredients. For example, the food processor can be a juicer, a wall breaking machine, a juicer, a soy milk machine, or any other device used for processing food materials.

[0049] In some embodiments, the food processor includes a base assembly and a cup assembly, the cup assembly is mounted on the base assembly, and defines a food processing chamber for holding food. Specifically, the present application also proposes a cup assembly, which includes a cup body, a cup seat and a knife assembly 1. The cup seat is used to provide a connection basis between the cup assembly and the base assembly, and the cup body is mounted on the cup seat to define the above-mentioned food processing chamber with the cup seat. Commonly, the cup body is roughly cylindrically arranged to accommodate more food and facilitate the cutting operation of the knife assembly 1. Of course, the shape of the cup body can be adaptively adjusted according to actual needs, and the embodiments of the present application are not limited here. The knife assembly 1 is connected to the cup seat and extends into the cup body, and is located in the food processing chamber. It can be understood that a drive member for driving the knife assembly 1 to operate is provided in the base assembly, and optionally, the drive member is a motor, and the knife assembly 1 is connected to the output end of the drive member to cut and crush the food in the food processing chamber under the drive of the drive member.

[0050] It should be noted that, in some other embodiments, the food processor may include a base assembly and a knife assembly 1, wherein the base assembly itself forms a food processing chamber, and the knife assembly 1 is connected above the base assembly and extends into the food processing chamber from top to bottom.

[0051] In order to improve the crushing effect and make the crushed food more delicate, the food processor in the related art adopts the method of increasing the output power of the driving part. However, the above method undoubtedly puts higher requirements on the specifications of the driving part, thereby increasing the product cost and having poor economic benefits. In addition, the high-power output driving part may also bring greater noise and vibration, reduce the operating quality of the food processor, and poor user experience.

[0052] like Figure 1 As shown, in some embodiments, the knife assembly 1 includes a knife shaft 10 and a knife 20 . The knife shaft 10 is used to connect with a cup base or a machine base assembly, and the knife 20 is disposed on the knife shaft 10 .

[0053] The knife shaft 10 is arranged in a rod-like shape and extends roughly along the height direction of the food processor. Depending on the actual situation, the extension direction of the knife shaft 10 can be parallel to the height direction or arranged at an angle, which is not limited here. Along the height direction, the knife shaft 10 has a first end 11 and a second end 12 arranged opposite to each other, wherein the first end 11 is used to connect to the output end of the driving member, and the second end 12 is a free end. Exemplarily, the first end 11 is the lower end of the knife shaft 10, and the second end 12 is the upper end of the knife shaft 10. The knife shaft 10 can rotate around its own extension direction under the drive of the driving member, so that the tool 20 arranged on the knife shaft 10 rotates accordingly, that is, the extension direction of the knife shaft 10 is the axial direction of the knife shaft 10.

[0054] At least three groups of knives 20 may be arranged on the knife shaft 10 along the axial direction of the knife shaft 10, namely, a first knife 21, a second knife 22 and a third knife 23, and the first knife 21, the second knife 22 and the third knife 23 are arranged in sequence from top to bottom along the height direction. It can be understood that the roots of two adjacent groups of knives 20 are arranged at intervals, on the one hand, to expand the crushing space of the knife assembly 1, and to cut and crush the food in multiple places in the food processing chamber during operation, and on the other hand, the compatibility of the food processor can be improved by designing the knives 20, and it can be suitable for food of various forms, volumes and shapes.

[0055] Optionally, the first tool 21, the second tool 22 and the third tool 23 are respectively installed on the tool shaft 10 at preset intervals through the shaft sleeve 15, the third tool 23 is located at the bottom of the tool shaft 10 and is closest to the first end 11 of the tool shaft 10. After the third tool 23 is installed on the tool shaft 10, the first shaft sleeve 15 is sleeved on the tool shaft 10, and then the second tool 22 is installed on the tool shaft 10 and is located above the shaft sleeve 15, so that the second tool 22 and the third tool 23 are connected through the shaft sleeve 15. They are spaced apart at a preset distance; then a second sleeve 15 is sleeved on the knife shaft 10, and a first tool 21 is installed on the sleeve 15, and the first tool 21 and the second tool 22 are spaced apart at a preset distance through the sleeve 15; finally, the first tool 21 is locked at the top end of the knife shaft 10, that is, the second end 12 of the knife shaft 10, by a fastener 14 to complete the installation of the entire knife assembly 1, wherein the fastener 14 can be optionally a nut, and a gasket can be installed between the fastener 14 and the first tool 21 to prevent loosening.

[0056] Furthermore, the first end 11 can be directly connected to the driving member, or the first end 11 can also be installed with a tool holder 13, and a gasket can also be installed between the third tool 23 and the tool holder 13 to prevent loosening. Of course, a shaft sealing ring can also be installed between the third tool 23 and the tool holder 13 to increase sealing.

[0057] Exemplarily, the preset spacing between two adjacent sets of knives 20 is 5 mm to 20 mm. For example, the preset spacing between two adjacent sets of knives 20 can be 5 mm, 8 mm, 13 mm, 15 mm, 18 mm, 20 mm, etc. In this way, while ensuring that the knife assembly 1 has a sufficient whipping volume, it is possible to avoid the preset spacing between two adjacent sets of knives 20 being too large to affect the whipping and crushing effect of the food.

[0058] like Figure 1 As shown, the cutter 20 located in the middle, i.e., the second cutter 22, and the cutter shaft 10 define a middle-layer crushing space when in a rotating state. In a rotating state, the blade of the second cutter 22 continuously rotates to form a cutting area with the cutter shaft 10 as the central axis, and the middle-layer crushing space is defined between the periphery of the second cutter 22 and the cutter shaft 10. In some cutter assemblies 1, there is a larger space in the middle-layer crushing space, for example, there is a larger gap on one side of the middle-layer crushing space close to the lower cutter 20 (third cutter 23), and when the cutter 20 rotates with the cutter shaft 10, there is a larger space where the cutter 20 fails to contact the food, and the food is easily stuck, which affects the crushing effect.

[0059] In view of this, please refer to Figure 1 In the embodiment of the present application, at least one of the blades of the lower cutter 20, that is, the third cutter 23, is at least partially bent upward and located in the middle crushing space. The root of the third cutter 23 is at a preset distance from the root of the second cutter 22, and the blade of the third cutter 23 is connected to the root and extends substantially along the radial direction of the cutter shaft 10.

[0060] In some possible structural forms, at least one blade of the third cutter 23 is bent upward relative to the root of the third cutter 23, so that the blade as a whole extends close to the second cutter 22 and can be located in the middle-layer crushing space in the rotating state. Alternatively, one or more parts of at least one blade of the third cutter 23 are arched toward the direction of the second cutter 22, so that part of it can be located in the middle-layer crushing space in the rotating state.

[0061] It can be understood that by making at least one blade of the lower tool 20 located in the middle-layer crushing space in a rotating state, the food in the middle-layer crushing space can be cut and crushed, thereby increasing the overall crushing space of the knife assembly 1, making the knife assembly 1 more effective and comprehensive in crushing the food, and preventing the food from getting stuck in the middle-layer crushing space, thereby improving the crushing effect and further improving the compatibility of the knife assembly 1 with the food.

[0062] The present application improves the crushing effect of the knife assembly 1 by designing the knife shape of the knife 20, rather than adopting the method of increasing the output power of the driving part in the related technology. It can ensure good cost control while improving the crushing effect, and can avoid problems such as noise and vibration caused by increasing the output power, thereby ensuring the operating quality and user experience of the food processor.

[0063] Please refer to Figure 1 In some embodiments, among the blades of the cutter 20 (third cutter 23) located below, the middle portion of at least one blade is bent upward and extends into the middle-layer crushing space. Optionally, in the third cutter 23, the middle portion of this blade can be arched in an arc shape, or the middle portion protrudes to form a step shape, etc., so that it can fully contact the food below the third cutter 23 to improve the crushing effect. In this way, on the one hand, the middle portion of the blade can effectively crush the food that cannot be cut by the second cutter 22, and on the other hand, the rest of the blade can take into account the processing of the food in the lower area, effectively increasing the overall crushing space of the knife assembly 1 and improving the crushing efficiency.

[0064] Exemplarily, in the third cutter 23, at least one blade includes a first cutter portion 231 and a second cutter portion 233. The first cutter portion 231 is connected to the root of the third cutter 23 and extends obliquely upward away from the cutter shaft 10; the second cutter portion 233 is connected to an end of the first cutter portion 231 away from the cutter shaft 10 and extends obliquely downward in a direction away from the first cutter portion 231. In this embodiment, the connecting end 232 of the first cutter portion 231 and the second cutter portion 233 is located above the root of the cutter 20 and in the middle-layer crushing space. In this way, the first cutter portion 231 extending obliquely upward can guide the nearby food to be thrown obliquely upward, while the connecting end 232 of the first cutter portion 231 and the second cutter portion 233 can cut and crush the passing food, effectively avoiding the food from getting stuck, while increasing the crushing space of the third cutter 23, and the cutter assembly 1 can crush the food more comprehensively. At the same time, the second cutter portion 233 extends obliquely downward, which can crush the food below the connecting end 232, taking into account the crushing effect of the food in the lower layer of the cup body. '

[0065] The first blade portion 231 and the second blade portion 233 may be an integral structure. For example, the first blade portion 231 and the second blade portion 233 may be integrally cast, or after the blade is formed, the blade may be bent by stamping and bending to form the first blade portion 231 and the second blade portion 233. The integrally arranged first blade portion 231 and the second blade portion 233 have good structural integrity, and are relatively simple and convenient to process and form, with high production efficiency. The connecting end 232 of the first blade portion 231 and the second blade portion 233 is arranged in an arc shape to improve the strength and service life of the blade.

[0066] Of course, the first blade portion 231 and the second blade portion 233 may also be welded after being formed separately to form the blade of the third tool 23, and the embodiment of the present application does not limit this.

[0067] Optionally, the first knife portion 231 is set at an angle θ with the horizontal plane, wherein 10°≤θ≤20°. It is understandable that if the angle θ is greater than 20 degrees, in the structural form in which the blade of the third knife 23 is an integrated structure, the bending angle of the first knife portion 231 relative to the root of the third knife 23 is too large, which may affect the connection strength between the blade and the knife 20, reduce the service life, and the excessive bending is easy to deposit food residues, which is not convenient for cleaning the third knife 23; if the angle θ is less than 10 degrees, the connection end 232 of the first knife portion 231 and the second knife portion 233 cannot fully further process the food in the middle-layer crushing space, affecting the crushing effect. The embodiment of the present application is limited to 10°≤θ≤20°, which is convenient for processing while improving the crushing effect, ensuring the structural strength and the convenience of cleaning the knife 20. θ can be selected as 12°, 16°, °18°, etc., and is not limited here.

[0068] Furthermore, the second blade portion 233 is set at an angle δ with the horizontal plane, wherein 30°≤δ≤50°. If the angle δ is greater than 50 degrees, in the structural form in which the blade of the third tool 23 is an integrated structure, there may be a large stress concentration at the connection end 232 of the first blade portion 231 and the second blade portion 233, which affects the structural strength and service life, and the excessively large angle not only increases the material cost of the blade, but also increases the resistance of the blade rotation process, and increases power consumption; if the angle δ is less than 30 degrees, the second blade portion 233 may not be able to fully crush the food in the lower layer of the cup body, affecting the crushing effect. The embodiment of the present application is limited to 30°≤δ≤50°, which ensures the structural strength while improving the crushing effect, and controls the product cost and power consumption. Among them, δ can be selected as 30°, 38, °45°, etc., without limitation here.

[0069] Please refer again Figure 1In some embodiments, the distance between the end of the first blade portion 231 close to the blade shaft 10 and the central axis of the blade shaft 10 is d1, and the distance between the end of the second blade portion 233 away from the blade shaft 10 and the central axis of the blade shaft 10 is d2, and 0.5≤d1 / d2≤0.7. In other words, d1 / d2 reflects the relationship between the distance between the first bending point of the blade of the third tool 23 and the blade shaft 10 and the overall length of the blade. Among them, if d1 / d2 is greater than 0.7, that is, d1 is too large or d2 is too small, d1 is too large, indicating that the distance between the starting position of the first blade portion 231 and the blade shaft 10 is large, and the effective cutting range of the first blade portion 231 is reduced. d2 is too small, indicating that the blade is shorter as a whole and the overall cutting area is smaller. In either case, the crushing space of the third tool 23 is affected, thereby reducing the crushing effect. If d1 / d2 is less than 0.5, that is, d1 is too small or d2 is too large, it means that the distance between the starting position of the first blade portion 231 and the blade shaft 10 is small, and the connection strength between the first blade portion 231 and the root of the third blade 23 cannot be guaranteed. Therefore, the embodiment of the present application specifies 0.5≤d1 / d2≤0.7 to ensure the connection strength between the first blade portion 231 and the root of the third blade 23 and improve the crushing effect. Among them, d1 / d2 can be selected as 0.5, 0.55, 0.6, etc., which are not limited here.

[0070] In some embodiments, the third knife 23 includes at least two blades, and the at least two blades are centrally symmetrical about the central axis of the knife shaft 10. In this way, not only can the contact area between the third knife 23 and the food be increased, but also the weight of the knife assembly 1 can be evenly distributed, thereby improving the operating stability of the knife assembly 1.

[0071] Please refer to Figure 1 and Figure 2 In some embodiments of the present application, the second tool 22 includes at least two first blades 221 and at least two second blades 223. The root of the second tool 22 is sleeved on the tool shaft 10, the first blade 221 includes a third blade portion 2211 and a fourth blade portion 2213, the third blade portion 2211 is connected to the root of the second tool 22 and extends in the radial direction of the tool shaft 10, the fourth blade portion 2213 is connected to the farthest end of the third blade portion 2211 away from the tool shaft 10, and is extended upward or downward, and each second blade 223 extends outwardly in a direction opposite to the extension direction of the fourth blade portion 2213.

[0072] The third blade portion 2211 can be set parallel to or at an angle with the horizontal plane, and can cut and crush the food in the middle layer when rotating. When the blade shaft 10 rotates, due to the centrifugal force, the food gathers around, so the blade portion farther from the blade shaft 10 has more contact with the food. The fourth blade portion 2213 of the embodiment of the present application is set at the farthest end of the third blade portion 2211 away from the blade shaft 10, so that it can fully contact the food, and because the fourth blade portion 2213 extends upward or downward, the scope of action of the fourth blade portion 2213 is expanded, so that the fourth blade portion 2213 can fully cut and crush the food near it. Each second blade 223 extends outwardly along the direction opposite to the extension direction of the fourth blade portion 2213, increasing the contact area between the blade assembly 1 and the food, and increasing the crushing space of the blade assembly 1.

[0073] Optionally, refer to Figure 1 In one structural form, the fourth blade portion 2213 of the first blade 221 extends downward, and the second blade 223 extends upward obliquely. In the rotating state, the third blade portion 2211 and the fourth blade portion 2213 form a hollow cylindrical area, which is at least part of the middle-layer crushing space. It can be seen that the area between the fourth blade portion 2213 and the blade shaft 10 cannot be cut by the blade of the second knife 22. In the embodiment of the present application, the blade of the third knife 23, specifically the connecting end 232 of the first blade portion 231 and the second blade portion 233, is located in the above-mentioned middle-layer crushing space, and along the axial direction of the blade shaft 10, the fourth blade portion 2213 at least partially overlaps with the connecting end 232, so that the connecting end 232 can crush the food between the fourth blade portion 2213 and the blade shaft 10, thereby improving the crushing effect.

[0074] Or, refer to Figure 2 In another structural form, the fourth blade portion 2213 extends upward and the second blade 223 extends obliquely downward, so that in the rotating state, the area between the second blade 223 and the blade shaft 10 forms at least part of the middle-layer crushing space, and the connecting end 232 and the second blade 223 at least partially overlap in the axial direction of the blade shaft 10, thereby disturbing the food in this part of the middle-layer crushing space and crushing it, thereby improving the crushing effect.

[0075] Furthermore, along the circumference of the knife shaft 10, at least two first blades 221 and at least two second blades 223 are alternately arranged, and the blade arrangement is more evenly mixed, so that the crushed food is more delicate. For example, the second knife 22 includes two first blades 221 and two second blades 223, the two first blades 221 are symmetrically arranged about the knife shaft 10, and the two second blades 223 are symmetrically arranged about the knife shaft 10, so that the weight of the knife assembly 1 can be evenly balanced, and the operation stability of the knife assembly 1 is improved.

[0076] In some embodiments, in the blade of the tool 20 (first tool 21) located above, the blade is bent upward and forms an angle of 45° to 80° with the horizontal plane. For example, in the blade of the first tool 21, the blade is bent upward and can form an angle of 45°, 50°, 65°, 70°, 77°, 80°, etc. with the horizontal plane. In this way, the blade of the first tool 21 forms a larger whipping volume during the rotation process to fully whip different parts of the food, so that the crushed food is more delicate, so as to achieve a better crushing effect. Specifically, the first tool 21 may include two blades, and the two blades may be arranged symmetrically along the central axis of the knife shaft 10 to achieve better whipping and crushing effects.

[0077] Combination Figure 1 and Figure 2 In some embodiments, the number of blades of the cutter 20 located in the middle is greater than the number of blades of the cutters 20 located on both sides thereof. That is, the number of blades of the second cutter 22 is greater than the number of blades of the third cutter 23 and the number of blades of the first cutter 21. For example, the second cutter 22 has four blades, and the first cutter 21 and the third cutter 23 each have two blades. In this way, the number of blades of each set of cutters 20 can be set differently, so that the crushed food is more delicate, especially for food without liquid, a good crushing effect can also be achieved, so as to further solve the problem of poor food crushing effect.

[0078] In one embodiment, along the same rotation direction, the blades of two adjacent groups of cutters 20 are staggered so that different angles are formed between the blades of the two adjacent groups of cutters 20, thereby achieving a larger whipping volume, so that the contact position of each layer of cutters 20 with the food is different, making the crushed food more delicate, thereby achieving a better crushing effect.

[0079] Optionally, at least part of the cutting edge of the blade of the third knife 23 faces upward, at least part of the cutting edge of the blade of the second knife 22, and the cutting edge of the blade of the first knife 21 all face downward, which not only makes the knife assembly 1 whipping a larger volume of food, but also improves the disturbance effect of the knife assembly 1 on the food, making the whipped food more uniform and delicate.

[0080] Of course, on the basis of the above technical solution, the contact area between the cutter 20 and the food material can be increased by setting at least part of the blade of the cutter 20 to be serrated, thereby further improving the crushing effect, which will not be elaborated here.

[0081] The above is an explanation of the knife assembly 1 proposed in the embodiment of the present application. Since the cup body assembly and food processor proposed in the embodiment of the present application adopt all the technical solutions of all the above embodiments, they at least have all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0082] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0083] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A knife assembly, characterized in that: include: Knife shaft; and At least three groups of cutting tools are arranged on the cutting shaft along the axial direction of the cutting shaft, and the roots of two adjacent groups of cutting tools are arranged at intervals; The tool located in the middle and the tool shaft define a middle-layer crushing space when rotating, and at least one of the blades of the tool located below is at least partially bent upward and located in the middle-layer crushing space.

2. The knife assembly according to claim 1, characterized in that Among the blades of the tool located below, at least one of the blades has a middle portion that bends upward and is located in the middle-layer crushing space.

3. The knife assembly according to claim 1, characterized in that Among the blades of the tool located below, at least one of the blades comprises: A first knife portion connected to the root of the knife and extending obliquely upward away from the knife axis; and A second blade portion is connected to an end of the first blade portion away from the blade shaft and extends obliquely downward in a direction away from the first blade portion; The connecting end of the first blade part and the second blade part is located above the root of the blade and in the middle-layer crushing space.

4. The knife assembly according to claim 3, characterized in that The distance between one end of the first blade portion close to the blade shaft and the central axis of the blade shaft is d1, and the distance between one end of the second blade portion away from the blade shaft and the central axis of the blade shaft is d2; Among them, 0.5≤d1 / d2≤0.

7.

5. The knife assembly according to claim 3, characterized in that The first blade portion is arranged at an angle θ with the horizontal plane, wherein 10°≤θ≤20°; and / or, The second blade portion is disposed at an angle δ with a horizontal plane, wherein 30°≤δ≤50°.

6. The knife assembly according to claim 1, characterized in that The tool located at the bottom includes at least two blades, and the at least two blades are centrally symmetrical about the central axis of the tool shaft.

7. The knife assembly according to any one of claims 1 to 6, characterized in that The cutter in the middle includes at least two blades to define the middle-layer crushing space with the cutter shaft; The blade of the tool located in the middle at least partially overlaps with the blade of the tool located below along the axial direction of the tool shaft.

8. The knife assembly according to claim 7, characterized in that Among the blades of the tool located in the middle, at least one blade includes a third blade portion and a fourth blade portion, wherein the third blade portion is connected to the root of the tool and extends radially along the tool shaft, and the fourth blade portion is connected to the farthest end of the third blade portion away from the tool shaft and extends downward; The fourth knife portion at least partially overlaps with the blade of the tool located below along the axial direction of the knife shaft.

9. The knife assembly according to claim 7, characterized in that Among the blades of the tool located in the middle, at least one blade extends obliquely downward in a direction away from the tool axis, and at least partially overlaps with the blade of the tool located below along the axial direction of the tool axis.

10. The knife assembly according to claim 7, characterized in that The tool located in the middle includes: At least two first blades, each of the first blades is bent upward or downward and extended away from the farthest end of the blade shaft; and At least two second blades, each of the second blades extending outwardly in a direction opposite to the bending direction of the first blade; Wherein, along the circumference of the knife shaft, at least two of the first blades and at least two of the second blades are alternately arranged.

11. The knife assembly according to any one of claims 1 to 6, characterized in that In the blade of the tool located at the top, the blade is bent upward and forms an angle of 45° to 80° with the horizontal plane.

12. The knife assembly according to any one of claims 1 to 6, characterized in that The number of blades of the tool located in the middle is greater than the number of blades of the tools located on both sides thereof; and / or, Along the same rotation direction, the blades of two adjacent groups of the cutting tools are staggered; and / or, At least part of the cutting edge of the blade of the tool located at the bottom faces upward, and at least part of the cutting edge of the blade of the tool located in the middle and the cutting edge of the blade of the tool located at the top all face downward.

13. A cup body assembly, characterized in that: It comprises a cup body, a cup seat and a knife assembly as claimed in any one of claims 1 to 12, wherein the cup body is connected to the cup seat, and the knife assembly is installed on the cup seat and extends into the cup body.

14. A food processor, characterized in that: It comprises a base assembly and a knife assembly as claimed in any one of claims 1 to 12 or a cup assembly as claimed in claim 13; The cup body assembly is arranged on the base assembly.

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