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 up-down direction opposite to the rotating direction of the rotating shaft; and a knife assembly detachably mounted on the rotating shaft, the knife assembly comprising a knife holder sleeved on the rotating shaft and a knife blade fixed on the knife holder, the knife holder and / or the knife blade being provided with a driving hole matched with the driving section, the driving hole comprising a plurality of edges extending vertically in the up-down direction; the rotating shaft comprises a first section and a second section, the first section being provided with a clamping groove, the knife assembly further comprising an elastic limiting ring assembled on the knife holder, the elastic limiting ring comprising a limiting rib extending upwardly and radially from the outside to the inside; and the limiting rib extends into the clamping groove when the knife assembly is mounted on the rotating shaft. Thus, the stirring cup assembly no longer has a dead angle that cannot be cleaned, and the knife assembly can be effectively prevented from being separated from the rotating shaft when the liquid is poured.

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 detachable blade components assembled at the bottom of the blending cup, making it easy to remove and clean the blade components. However, assembling the blade components onto the rotating shaft requires considerable force and cannot guarantee proper assembly, thus posing a risk of the blade components detaching from the rotating shaft when pouring. 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, and effectively prevents the blade assembly from detaching from the rotating shaft when pouring the mixture after it is assembled onto the rotating shaft.

[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 matching the drive section, the drive hole including a plurality of angles extending vertically in a vertical direction; wherein, the rotating shaft includes a first section and a second section located above the first section, the first section having a groove, the blade assembly further including an elastic limiting ring assembled on the blade holder, the elastic limiting ring including limiting ribs extending radially from the outside to the inside and upwardly inclined; when the blade assembly is mounted on the rotating shaft, the limiting ribs extend into the groove. Because the blade assembly is detachably mounted on the shaft, when the mixing cup assembly needs cleaning after use, the user can simply rotate the blade assembly along the deflection direction of the edge to remove it for thorough cleaning. This eliminates hard-to-clean corners in the mixing cup assembly, effectively preventing bacterial growth and odors. Furthermore, the elastic retaining ring includes a retaining rib that extends into the slot. During pouring, the retaining rib and slot work together to limit the blade assembly, preventing it from falling off the shaft and providing a better user experience. In addition, because the retaining rib extends upwards from the outside to the inside, even if the blade assembly is not fully installed when assembled on the shaft, the downward force exerted by the shaft rotation is sufficient to move the blade assembly downwards, causing the retaining rib to enter the slot and ensuring that the blade assembly does not fall off the shaft during pouring.

[0005] Furthermore, the angle of inclination of the limiting rib is between 5 degrees and 85 degrees. This ensures, on the one hand, that less force is applied to the blade assembly when assembling it onto the rotating shaft, and on the other hand, that more force is required when removing the blade assembly from the rotating shaft, resulting in a better user experience.

[0006] Furthermore, the inner diameter of the limiting rib is larger than the radial dimension of the first segment. This creates a clearance fit between the limiting rib and the first segment, preventing the limiting rib from being subjected to prolonged compression, thus avoiding accelerated aging of the elastic limiting ring and extending its service life.

[0007] Furthermore, the elastic limiting ring includes a mating part corresponding to the second segment. By mating the second segment with the mating part, wobbling of the central blade assembly relative to the rotating shaft is prevented, thereby reducing noise generated by their collision.

[0008] Furthermore, the second segment includes a guide segment connected to the first segment and an extension segment connected to the guide segment. The diameter of the guide segment gradually increases from top to bottom, while the diameter of the extension segment remains constant from top to bottom. In this way, the guide segment and the extension segment cooperate with the mating part, better preventing the cutter assembly from wobbling relative to the rotating shaft. Simultaneously, when assembling the cutter assembly onto the rotating shaft, the limiting rib experiences less force, making it easier to install the cutter assembly into place.

[0009] Furthermore, the inner diameter of the limiting rib is larger than the diameter of the extension section, and the inner diameter of the limiting rib is smaller than the diameter of the bottom end of the guide section. Thus, on the one hand, when the tool assembly is installed on the rotating shaft, the limiting rib will not be resisted by the extension section, making it easier to install the tool assembly into place; on the other hand, the guide section can confine the limiting rib within the slot.

[0010] Furthermore, the mating part is clearance-fitted with the extension section, and the mating part is abutting-fitted with the guide section. In this way, the mating part and the guide section fit together to prevent the cutter assembly from wobbling relative to the rotating shaft, and the mating part is not subjected to compression from the extension section, making it less prone to deformation and extending its service life.

[0011] 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.

[0012] Furthermore, the blade holder includes a first frame and a second frame fixedly 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.

[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 An exploded perspective view of the stirring blade assembly shown.

[0017] Figure 4 As shown Figure 3 A cross-sectional view of the blade assembly shown;

[0018] Figure 5 As shown Figure 4 A cross-sectional view of the elastic limiting ring shown;

[0019] Figure 6 As shown Figure 4 The cross-sectional view of the shaft shown;

[0020] Figure 7 As shown Figure 3 The cross-sectional view shown is of the tool assembly being installed onto the rotating shaft.

[0021] Figure 8 As shown Figure 7 Enlarged view of point A;

[0022] Figure 9 As shown Figure 3 The cross-sectional view shown is of the tool assembly being installed onto the rotating shaft.

[0023] Figure 10 As shown Figure 9 Enlarged view of point B. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] Please see Figures 1 to 10 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.

[0027] The mixing cup assembly 60 includes a mixing cup 10 and a base 21 fixed to the bottom of the mixing cup 10. A blade assembly is disposed at the bottom of the mixing cup 10. A rotating shaft 22 passes through the heating plate 21, and a bearing sleeve 23 and a bearing 24 are provided between the rotating shaft 22 and the base 21. A bearing 24 and an oil seal 26 are provided between the rotating shaft 22 and the bearing sleeve 23. In one embodiment, the mixing 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 food processor 100 to have a heating function.

[0028] 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 motor shaft and the rotating shaft 22 are integrally formed. In other embodiments, the rotating shaft 22 is connected to the motor shaft of the motor through a clutch structure.

[0029] 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 extending vertically in a vertical direction. In the illustrated 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 the examples described above.

[0030] The rotating shaft 22 includes a first segment 229 and a second segment 227 located above the first segment 229. The first segment 229 is provided with a slot 228. The blade assembly 30 also includes an elastic limiting ring 33 assembled to the blade holder 31. The elastic limiting ring 33 includes a limiting rib 331 extending radially upward from the outside to the inside. When the blade assembly 30 is installed on the rotating shaft 22, the limiting rib 331 extends into the slot 228. In some embodiments, the elastic limiting ring 33 is made of a flexible material, such as silicone, but is not limited thereto. In the illustrated embodiment, the limiting rib 331 is disposed on the inner side of the elastic limiting ring 33 and extends radially upward from the outside to the inside starting from the bottom end of the elastic limiting ring 33. In other embodiments, the limiting rib 331 can also be set at other positions of the elastic limiting ring 33, as long as the limiting rib can extend into the slot when the blade assembly 30 is installed on the rotating shaft 22. For example, the limiting rib 33 can extend radially from the top of the elastic limiting ring 33 and then tilt upwards from the outside to the inside. It is not limited to this.

[0031] Since the blade assembly 30 is detachably mounted on the rotating shaft 22, when the mixing cup assembly 60 needs cleaning after use, the user can rotate the blade assembly 30 along the deflection direction of the edge 221 to remove it and clean it thoroughly. This eliminates any hard-to-clean corners in the mixing cup assembly 60, effectively preventing bacterial growth and odor. Simultaneously, since the drive section 220 includes several edges 221 deflected circumferentially, and the drive hole 310 includes several angles 315 extending vertically in the up-down direction, and the deflection direction of the edges 221 from top to bottom is opposite to the rotation direction of the rotating shaft 22, it can be seen that the edges 221 abut against at least a portion of the angles 315, and the pressure exerted by the edges 221 on the angles 315 has a downward component. In other words, the edges 221 deflected circumferentially... The blade assembly 30 has a downward limiting function, preventing it from axially disengaging from the rotating shaft 22 during high-speed rotation. Furthermore, since the elastic limiting ring 33 includes a limiting rib 331 extending into the slot 228, the limiting rib 331, in conjunction with the slot 228, can limit the blade assembly 30 during pouring, preventing it from falling off the rotating shaft 22 and improving the user experience. Additionally, because the limiting rib 331 extends upwards from the outside to the inside, even if the blade assembly 30 is not fully installed when assembled onto the rotating shaft 22, the downward force exerted by the rotating shaft 22 is sufficient to cause the blade assembly 30 to move downwards, prompting the limiting rib 331 to enter the slot 228, thus ensuring that the blade assembly 30 does not fall off the rotating shaft 22 during pouring.

[0032] In addition, since the limiting rib 331 extends upward from the outside to the inside, the force required to be applied to the blade assembly 30 when assembling the blade assembly 30 onto the rotating shaft 22 is relatively small.

[0033] Preferably, the angle α of the limiting rib 331 is between 5 degrees and 85 degrees. This ensures that, on the one hand, less force is applied to the blade assembly 30 when assembling it onto the rotating shaft 22, and on the other hand, more force is required to remove the blade assembly 30 from the rotating shaft 22, resulting in a better user experience.

[0034] In some embodiments, the angle α of the limiting rib 331 can be 5 degrees, 15 degrees, 25 degrees, 35 degrees, 45 degrees, 55 degrees, 65 degrees, 75 degrees, 85 degrees, or any value between any two adjacent values ​​mentioned above.

[0035] The inner diameter D4 of the limiting rib 331 is larger than the radial dimension D3 of the first segment 229. Thus, the limiting rib 331 and the first segment 229 are in a clearance fit, preventing the limiting rib 331 from being subjected to prolonged compression, avoiding accelerated aging of the elastic limiting ring 33, and extending its service life.

[0036] The elastic limiting ring 33 includes a mating part 333 corresponding to the second segment 227. By mating the mating part 333 with the second segment 227, the wobbling of the middle blade assembly 30 relative to the rotating shaft 22 is prevented, thereby reducing the noise generated by their collision.

[0037] In the illustrated embodiment, the second segment 227 includes a guide segment 2271 connected to the first segment 229 and an extension segment 2272 connected to the guide segment 2271. The diameter of the guide segment 2271 gradually increases from top to bottom, while the diameter of the extension segment 2272 remains constant from top to bottom. Thus, the guide segment 2271 and the extension segment 2272 together cooperate with the mating part 333, better preventing the blade assembly 30 from wobbling relative to the rotating shaft 22. Simultaneously, when assembling the blade assembly 30 onto the rotating shaft 22, the limiting rib 331 experiences less force, making it easier to install the blade assembly 30 into position. The diameter of the extension segment 2272 is the same as the diameter of the top end of the guide segment 2271.

[0038] In other embodiments, the second segment 227 may also be configured as a cylinder, or the second segment 227 may be configured as a frustum-shaped structure whose diameter gradually increases from top to bottom.

[0039] In one embodiment, the inner diameter D4 of the limiting rib 331 is greater than the diameter D1 of the extension section 2272, and the inner diameter D4 of the limiting rib 331 is smaller than the diameter D2 of the bottom end of the guide section 2271. On the one hand, when the blade assembly 30 is installed on the rotating shaft 22, the limiting rib 331 will not be resisted by the extension section 2272, making it easier to install the blade assembly 30 into place; on the other hand, the guide section 2271 can confine the limiting rib 331 within the slot 228. In another embodiment, the inner diameter of the limiting rib 331 is less than or equal to the diameter of the extension section 2272.

[0040] The mating part 333 is clearance-fitted with the extension section 2272, and the mating part 333 abuts against the guide section 2271. Thus, the mating part 333 and the guide section 2271 prevent the cutter assembly 30 from wobbling relative to the rotating shaft 22, and the mating part 333 is not subjected to pressure from the extension section 2272, making it less prone to deformation and extending its service life. In other words, the inner diameter D5 of the mating part 333 is larger than the diameter D1 of the extension section 2272, and the inner diameter D5 of the mating part 333 is smaller than the diameter D2 of the bottom end of the guide section 2271.

[0041] 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.

[0042] The tool 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. The blade 32 can be conveniently and reliably fixed by the cooperation of the first frame 311 and the second frame 312. The first frame 311 and the second frame 312 can be assembled together by means of threaded structure, riveting, welding, snap-fit, etc.

[0043] 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 A 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 matches the drive section (220). The drive hole (310) includes a plurality of angles (315) extending vertically in the up-down direction. The rotating shaft (22) further includes a first section (229) and a second section (227) located above the first section (229). The first section (229) is provided with a slot (228). 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 radially from the outside to the inside and upward. When the tool assembly (30) is installed on the rotating shaft (22), the limiting rib (331) extends into the slot (228).

2. The stirring blade assembly as described in claim 1, characterized in that: The angle of inclination of the limiting rib (331) is between 5 degrees and 85 degrees.

3. The stirring blade assembly as described in claim 1, characterized in that: The inner diameter of the limiting rib (331) is greater than the radial dimension of the first segment (229).

4. The stirring blade assembly as described in claim 1, characterized in that: The elastic limiting ring (33) includes a mating part (333) corresponding to the second segment (227).

5. The stirring blade assembly as described in claim 4, characterized in that: The second segment (227) includes a guide segment (2271) connected to the first segment (229) and an extension segment (2272) connected to the guide segment (2271). The diameter of the guide segment (2271) gradually increases from top to bottom, while the diameter of the extension segment (2272) remains constant from top to bottom.

6. The stirring blade assembly as described in claim 5, characterized in that: The inner diameter of the limiting rib (331) is greater than the diameter of the extension section (2272), and the inner diameter of the limiting rib (331) is smaller than the diameter of the bottom end of the guide section (2271).

7. The stirring blade assembly as described in claim 5, characterized in that: The mating part (333) is clearance-fitted with the extension section (2272), and the mating part (333) is abutting-fitted with the guide section (2271).

8. The stirring blade assembly as described in claim 1, 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).

9. 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) fixedly assembled with the first frame (311), wherein the first frame (311) and the second frame (312) clamp and fix the blade (32).

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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