Stirring knife assembly and food processor

Abstract

The application provides a stirring knife assembly and a food processor. The stirring knife assembly comprises a rotating shaft, a driving section of the rotating shaft, a plurality of edges extending in the up-down direction, a plurality of edges deflecting in the circumferential direction of the driving section, and a plurality of edges deflecting in the opposite direction of the rotating direction of the rotating shaft from top to bottom; and a knife assembly detachably mounted on the rotating shaft, the knife assembly comprising a knife holder sleeved on the rotating shaft and a blade fixed on the knife holder, the knife holder and / or the blade being provided with a driving hole matched with the driving section, the driving hole comprising a plurality of edges; the driving hole has a plurality of hole cross sections in the axial direction, the driving section has a plurality of same shaft cross sections in the axial direction, and at least part of the hole cross sections and the shaft cross sections have different shapes. Thus, the stirring cup assembly no longer has a dead angle that cannot be cleaned, and the growth of bacteria and the generation of odor are effectively avoided.

Description

Technical Field

[0001] This application relates to the field of food processing, and more particularly to a mixing blade assembly and a food processor. Background Technology

[0002] With the continuous improvement of people's living standards, many different types of food processors have appeared on the market. The functions of food processors mainly include, but are not limited to, making soy milk, juicing, rice paste, mincing meat, shaved ice, making coffee, and / or preparing face masks. Food processors can include soy milk makers, blenders, or high-speed blenders—machines that pulverize and mix food. To facilitate cleaning, some existing food processors have a detachable blade assembly assembled at the bottom of the blending cup. After use, the blade assembly can be removed for cleaning. However, disassembly is inconvenient, and water can easily enter the blade assembly during cleaning, coming into contact with electronic components and causing malfunctions. Utility Model Content

[0003] This application provides a mixing blade assembly and a food processor, which allows the blade assembly to be easily disassembled for cleaning.

[0004] This application provides a stirring blade assembly. The stirring blade assembly includes: a rotating shaft, including a drive section, the drive section including a plurality of edges extending in a vertical direction, the plurality of edges deflecting circumferentially along the drive section, and the deflection direction of the plurality of edges from top to bottom being opposite to the rotation direction of the rotating shaft; and a blade assembly detachably mounted on the rotating shaft, the blade assembly including a blade holder sleeved on the rotating shaft and a blade fixed to the blade holder, the blade holder and / or the blade having a drive hole cooperating with the drive section, the drive hole including a plurality of angles; the drive hole having a plurality of bore cross-sections along the axial direction, the drive section having a plurality of identical axial cross-sections along the axial direction, at least a portion of the bore cross-sections having different shapes from the axial cross-sections. Because the blade assembly is detachably mounted on the shaft, when the mixing cup assembly needs cleaning after use, the user can rotate the blade assembly along the deflection direction of the edges to remove it for thorough cleaning. This eliminates any hard-to-clean corners in the mixing cup assembly, effectively preventing bacterial growth and odor. Simultaneously, since the drive section includes several edges deflecting circumferentially, and the drive hole includes several corners, with the deflection direction of these edges from top to bottom opposite to the rotation direction of the shaft, and at least some of the hole cross-sections having different shapes from the shaft cross-section, it can be seen that the edges abut against the top of the corners downwards, and the pressure exerted by the edges on the corner tops has a downward component. In other words, the circumferentially deflecting edges have a downward limiting effect on the blade assembly, preventing it from detaching from the shaft axially during high-speed rotation.

[0005] Furthermore, several of the edges have the same deflection angle, while at least some of the corners have a different deflection angle than the edges; or, there is an axial side surface between two adjacent edges and a hole side surface between two adjacent corners, the axial side surfaces all having the same shape, and at least some of the hole side surfaces having a different shape from the axial side surfaces. In this way, the edges can only press downwards against the tip of the corner, resulting in a smaller engagement force between the edges and corners, making it easier to detach the tool assembly from the shaft.

[0006] Furthermore, the tool holder includes a shaft hole through which the rotating shaft passes, and the drive hole is located at the bottom, top, or middle of the shaft hole.

[0007] Furthermore, the blade holder includes a first frame and a second frame assembled with the first frame, the first frame and the second frame clamping and fixing the blade. The blade can be conveniently and reliably fixed by the cooperation of the first frame and the second frame.

[0008] Furthermore, the drive hole is disposed on the first frame or the second frame. Distributing the drive hole on the first frame or the second frame ensures that the drive hole has sufficient thickness to mate with the drive section, thereby making the blade assembly more stable during rotation.

[0009] Furthermore, the first frame and the second frame are assembled together by threads, riveting, or screw fastening. This results in a simple tool assembly structure and convenient assembly.

[0010] Furthermore, the rotating shaft is provided with a retaining groove, and the cutter assembly also includes an elastic limiting ring assembled to the cutter holder. The elastic limiting ring includes a limiting rib extending into the retaining groove. The limiting rib cooperates with the retaining groove to prevent the cutter assembly from falling off the rotating shaft during pouring.

[0011] Furthermore, the limiting rib extends radially upwards from the outside to the inside. Thus, when assembling the cutter assembly onto the rotating shaft, the force required to the cutter assembly is relatively small. Even if the cutter assembly is not fully installed, the downward force exerted on the cutter assembly by the rotation of the shaft is sufficient to move the cutter assembly downwards until the limiting rib enters the slot, thereby ensuring that the cutter assembly will not fall off the rotating shaft during pouring.

[0012] Furthermore, the blade assembly also includes a limiting cap assembled to the blade holder, with the elastic limiting ring clamped between the blade holder and the limiting cap. This allows for convenient and reliable assembly of the elastic limiting ring to the blade holder.

[0013] This application provides a food processor. The food processor includes: a main unit; a blending cup assembly installed on the main unit, the blending cup assembly including a blending cup and a base fixed to the bottom of the blending cup; a blending blade assembly as described above, disposed at the bottom of the blending cup, wherein the rotating shaft passes through the base; and a lid assembly covering the blending cup assembly. Attached Figure Description

[0014] Figure 1 The image shown is an exploded perspective view of one embodiment of the food processor of this application;

[0015] Figure 2 As shown Figure 1 A cross-sectional view of the mixing cup assembly shown;

[0016] Figure 3 As shown Figure 2 A cross-sectional view of the stirring blade assembly shown;

[0017] Figure 4 As shown Figure 3 An exploded perspective view of the stirring blade assembly shown.

[0018] Figure 5 As shown Figure 4 A three-dimensional schematic diagram of the blade assembly shown;

[0019] Figure 6 As shown Figure 4 A cross-sectional view of the blade assembly shown;

[0020] Figure 7 As shown Figure 3 The diagram shows the shaft mounted on the chassis. Detailed Implementation

[0021] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0022] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this invention pertains. The use of terms such as “a” or “one” in this specification and claims does not indicate a limitation of quantity, but rather indicates the presence of at least one. The terms “comprising” or “including” and similar expressions mean that the element or object preceding “comprising” or “including” encompasses the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The terms “connected” or “linked” and similar expressions are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0023] Please see Figures 1 to 7 The food processor 100 can be used to make soy milk, rice paste, juice, etc. The food processor 100 includes a main unit 50, a blending cup assembly 60, a blending blade assembly, and a lid assembly 70. The blending cup assembly 60 is mounted on the main unit 50, and the lid assembly 70 covers the blending cup assembly 60. The main unit 50 includes a housing and a motor housed within the housing.

[0024] The blending cup assembly 60 includes a blending cup 10 and a base 21 fixed to the bottom of the blending cup 10. A blade assembly is disposed at the bottom of the blending cup 10, and a rotating shaft 22 passes through the base 21. A bearing sleeve 23 and a bearing 24 are provided between the rotating shaft 22 and the base 21. In one embodiment, the blending cup 10 includes a cup body 11 and a cup holder 12 assembled to the bottom of the cup body 11, with the base 21 fixed between the cup body 11 and the cup holder 12. The cup body 11 and the cup holder 12 are assembled together by threads or screws, etc., and are not limited to these methods. In one embodiment, the base 21 is provided with electronic components such as a heating element, a thermostat (not shown), and a temperature sensor (not shown), thus enabling the blender 100 to have a heating function.

[0025] The mixing blade assembly includes a rotating shaft 22 and a blade assembly 30. The blade assembly 30 is detachably mounted on the rotating shaft 22. The blade assembly 30 includes a blade holder 31 sleeved on the rotating shaft 22 and blades 32 fixed to the blade holder 31. The motor shaft of the motor is connected to the rotating shaft 22, and the rotating shaft 22 drives the blade assembly 30 to rotate, thereby mixing and pulverizing the food in the mixing cup 10. In the illustrated embodiment, the rotating shaft 22 is connected to the motor shaft of the motor via a clutch structure. In another embodiment, the motor shaft of the motor and the rotating shaft 22 are integrally formed.

[0026] The rotating shaft 22 includes a drive section 220, which includes a plurality of edges 221 extending in a vertical direction. These edges 221 deflect circumferentially along the drive section 220, and the deflection direction of the edges 221 from top to bottom is opposite to the rotation direction of the rotating shaft 22. The tool holder 31 and / or the blade 32 are provided with drive holes 310 that match the drive section 220. The drive holes 310 include a plurality of angles 315. In one embodiment, the cross-section of the drive section 220 is square, and the edges 221 are formed by the four corners of the square cross-section. In another embodiment, the cross-section of the drive section 220 may also be triangular or polygonal. These are just some examples and are not limited to.

[0027] The driving hole 310 has a plurality of hole cross sections along the axial direction, and the driving segment 220 has a plurality of identical axial cross sections along the axial direction. At least a portion of the hole cross sections and the axial cross sections have different shapes. In some embodiments, all hole cross sections and axial cross sections have different shapes. In other embodiments, only a portion of the hole cross sections and axial cross sections have different shapes.

[0028] Since the blade assembly 30 is detachably mounted on the rotating shaft 22, when the mixing cup assembly 60 needs to be cleaned after use, the user can rotate the blade assembly 30 along the deflection direction of the edge 221 to remove the blade assembly 30 and clean it thoroughly. In this way, there are no dead corners in the mixing cup assembly 60 that cannot be cleaned, effectively preventing the growth of bacteria and the generation of odors. At the same time, since the drive section 220 includes several edges 221 that deflect circumferentially, and the drive hole 310 includes several corners 315, and the deflection direction of the edges 221 from top to bottom is opposite to the rotation direction of the rotating shaft 22, and at least some of the hole cross-sections have different shapes from the shaft cross-sections, it can be seen that the edges 221 abut against the top part of the corners 315 downwards, and the pressure exerted by the edges 221 on the top of the corners 315 has a downward component. That is to say, the edges 221 that deflect circumferentially have a downward limiting effect on the blade assembly 30, so that the blade assembly 30 cannot detach from the rotating shaft 22 axially upwards during high-speed rotation.

[0029] Several of the edges 221 have the same deflection angle, while at least some of the corners 315 have a different deflection angle than the edges 221. Thus, the edges 221 can only press downwards against the tip of the corners 315, resulting in a smaller engagement force between the edges 221 and the corners 315, making it easier to detach the blade assembly 30 from the shaft 22.

[0030] A axial side surface 229 is provided between two adjacent edges 221, and a hole side surface 319 is provided between two adjacent corners 315. The axial side surfaces 229 are all the same shape, and at least some of the hole side surfaces 319 have different shapes from the axial side surfaces 229. In this way, the edges 221 can only press downward against the top part of the corners 315, resulting in a smaller engagement force between the edges 221 and the corners 315, making it easier to disassemble the cutter assembly 30 from the rotating shaft 22.

[0031] The tool holder 31 includes a shaft hole 317 through which the rotating shaft 22 passes, and the drive hole 310 is located at the bottom, top, or middle of the shaft hole 317. In the illustrated embodiment, the drive hole 310 is located at the bottom of the shaft hole 317, but it is not limited thereto.

[0032] The blade holder 31 includes a first frame 311 and a second frame 312 assembled with the first frame 311. The first frame 311 and the second frame 312 clamp and fix the blade 32. Through the cooperation of the first frame 311 and the second frame 312, the blade 32 can be conveniently and reliably fixed.

[0033] The drive hole 310 is disposed on the first frame 311 or the second frame 312. Distributing the drive hole 310 on the first frame 311 or the second frame 312 ensures that the drive hole 310 has sufficient thickness to cooperate with the drive section 220, thereby making the blade assembly 30 more stable during rotation. In the illustrated embodiment, the drive hole 310 is disposed at the bottom end of the second frame 312.

[0034] The first frame 311 and the second frame 312 are assembled together by threads, riveting, or screw fastening. This results in a simple structure and easy assembly of the blade assembly 30. In other embodiments, the first frame 311 and the second frame 312 can also be assembled together by welding or other methods.

[0035] The rotating shaft 22 is provided with a slot 228, and the cutter assembly 30 also includes an elastic limiting ring 33 assembled to the cutter holder 31. The elastic limiting ring 33 includes a limiting rib 331 extending into the slot 228. The limiting rib 331 cooperates with the slot 228 to prevent the cutter assembly 30 from falling off the rotating shaft 22 during pouring.

[0036] The limiting rib 331 extends radially upward from the outside to the inside. Thus, when assembling the cutter assembly 30 onto the rotating shaft 22, the force required to be applied to the cutter assembly 30 is relatively small. Even if the cutter assembly 30 is not installed in place, the downward force exerted on the cutter assembly 30 by the rotation of the rotating shaft 22 is sufficient to make the cutter assembly 30 move downward until the limiting rib 331 enters the slot 228, thereby ensuring that the cutter assembly 30 will not fall off the rotating shaft 22 during pouring.

[0037] The cutting tool assembly 30 also includes a limiting cap 36 assembled to the cutting tool holder 31, with the elastic limiting ring 33 clamped between the cutting tool holder 31 and the limiting cap 36. This allows for convenient and reliable assembly of the elastic limiting ring 33 to the cutting tool holder 31. The limiting cap 36 can be assembled to the cutting tool holder 31 by welding, threaded structures, or other methods, and is not limited to these.

[0038] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A stirring blade assembly, characterized in that, It includes: A rotating shaft (22) includes a driving section (220), the driving section (220) including a plurality of edges (221) extending in a vertical direction, the plurality of edges (221) deflecting circumferentially along the driving section (220), and the deflection direction of the plurality of edges (221) from top to bottom being opposite to the rotation direction of the rotating shaft (22); and The blade assembly (30) is detachably mounted on the rotating shaft (22). The blade assembly (30) includes a blade holder (31) sleeved on the rotating shaft (22) and a blade (32) fixed to the blade holder (31). The blade holder (31) and / or the blade (32) are provided with a drive hole (310) that mates with the drive section (220). The drive hole (310) includes several edges (315). The driving hole (310) has several hole cross sections along the axial direction, and the driving segment (220) has several identical axial cross sections along the axial direction. At least some of the hole cross sections have different shapes from the axial cross sections.

2. The stirring blade assembly as described in claim 1, characterized in that: The deflection angles of some of the edges (221) are the same, and the deflection angles of at least some of the corners (315) are different from the deflection angles of the edges (221); or, There is an axial side surface (229) between two adjacent edges (221) and a hole side surface (319) between two adjacent corners (315). The axial side surfaces (229) are all the same shape, and at least some of the hole side surfaces (319) have different shapes from the axial side surfaces (229).

3. The stirring blade assembly as described in claim 1, characterized in that: The tool holder (31) includes a shaft hole (317) through which the rotating shaft (22) passes, and the drive hole (310) is located at the bottom, top or middle of the shaft hole (317).

4. The stirring blade assembly as described in claim 1, characterized in that: The blade holder (31) includes a first frame (311) and a second frame (312) assembled together with the first frame (311), wherein the first frame (311) and the second frame (312) clamp and fix the blade (32).

5. The stirring blade assembly as described in claim 4, characterized in that: The drive hole (310) is provided on the first frame (311) or the second frame (312).

6. The stirring blade assembly as described in claim 4, characterized in that: The first frame (311) and the second frame (312) are assembled together by threads, rivets or screw fasteners.

7. The stirring blade assembly as described in claim 1, characterized in that: The rotating shaft (22) is provided with a slot (228), and the tool assembly (30) further includes an elastic limiting ring (33) assembled on the tool holder (31). The elastic limiting ring (33) includes a limiting rib (331) extending into the slot (228).

8. The stirring blade assembly as described in claim 7, characterized in that: The limiting rib (331) extends radially upward from the outside to the inside.

9. The stirring blade assembly as described in claim 7, characterized in that: The blade assembly (30) also includes a limiting cap (36) assembled on the blade holder (31), and the elastic limiting ring (33) is clamped between the blade holder (31) and the limiting cap (36).

10. A food processor, characterized in that, It includes: Host (50); A mixing cup assembly is installed on the main unit (50). The mixing cup assembly (60) includes a mixing cup (10) and a base (21) fixed to the bottom of the mixing cup (10). The stirring blade assembly as described in any one of claims 1 to 9 is disposed at the bottom of the stirring cup (10), wherein, The pivot (22) passes through the chassis (21); and A cup lid assembly (70) is provided on the stirring cup assembly.

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