Stirring knife assembly and food processor

Abstract

The utility model provides a stirring knife assembly and a food processor. The stirring blade assembly comprises a rotating shaft; the knife assembly is detachably installed on the rotating shaft, the knife assembly comprises a knife rest and a first blade, and the knife rest comprises a through hole allowing the rotating shaft to penetrate through; wherein the first blade comprises a fixed part fixed on the knife rest and a first blade extending outwards from the fixed part, the first blade comprises a first cutting edge used for cutting food materials and a second cutting edge arranged opposite to the first cutting edge, and the second cutting edge is arranged on the bottom surface of the first blade; and the second cutting edge obliquely extends downwards from the edge to the direction of the first cutting edge. The cutter assembly can be conveniently detached to be cleaned, and the cutter assembly is not prone to being separated from the rotating shaft in the working process.

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 to the rotating shaft. After use, the blade components can be removed for cleaning. However, during operation, the blade components can easily detach from the rotating shaft. 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 the blade assembly is not easily detached from the rotating shaft during operation.

[0004] This application provides a stirring blade assembly. The stirring blade assembly includes: a rotating shaft; and a blade assembly detachably mounted on the rotating shaft. The blade assembly includes a blade holder and a first blade. The blade holder includes a through hole for the rotating shaft to pass through. The first blade includes a fixing portion fixed to the blade holder and a first blade extending outward from the fixing portion. The first blade includes a first cutting edge for cutting food and a second cutting edge disposed opposite to the first cutting edge. The second cutting edge is disposed on the bottom surface of the first blade and extends obliquely downward from its edge toward the first cutting edge. Because the blade assembly is detachably mounted on the shaft, users can easily remove it for thorough cleaning after use. This eliminates hard-to-clean areas, effectively preventing bacterial growth and odors. Furthermore, since the second blade is located on the bottom surface of the first blade and extends downwards from its edge towards the first blade, during rotation, the second blade experiences less upward force from the food slurry, while the first blade experiences greater downward force. This creates a pressure difference in the vertical direction of the first blade, resulting in a downward force on the entire first blade. Consequently, during operation, the blade assembly is more stably fixed to the shaft and will not detach.

[0005] Optionally, the thickness between the edge of the second cutting edge and the top surface of the first blade is between 0.5 mm and 1 mm. This ensures that the first blade maintains good strength. The width of the second cutting edge is between 3 mm and 3.4 mm. This creates a sufficient pressure difference in the vertical direction of the first blade, allowing the blade assembly to be more stably fixed on the pivot without detaching from it.

[0006] Optionally, the first blade includes a third blade at its end, the third blade being connected to the first blade, and the angle between the third blade and the first blade being an obtuse angle. The food being cut or impacted by the third blade rotates in a different direction than the food being cut or impacted by the first blade, thus facilitating the formation of a vortex and improving the efficiency of pulverizing the food.

[0007] Optionally, the length of the third blade is between 2.5 mm and 3.2 mm. This allows for better vortex formation, further improving the food pulverization effect.

[0008] Optionally, the first cutting edge is disposed on the bottom surface of the first blade, and the first cutting edge extends downward at an angle from the edge toward the second cutting edge; or, the first cutting edge is disposed on the top surface of the first blade, and the first cutting edge extends upward at an angle from the edge toward the second cutting edge. This design facilitates manufacturing and produces a good pulverizing effect.

[0009] Optionally, the width of the first blade is between 2.7 mm and 3.4 mm; and / or, the angle between the first blade and the bottom or top surface of the first blade is between 10 degrees and 45 degrees. This results in a better pulverizing effect.

[0010] Optionally, the first blade is tilted downwards. This allows for more reliable containment of the blade assembly on the shaft.

[0011] Optionally, the blade assembly includes a second blade fixed to the blade holder, the second blade being positioned above or below the first blade. This results in a more efficient pulverization of food by the blade assembly.

[0012] 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 bearing sleeve and a bearing are provided between the rotating shaft and the base; and a cup lid assembly covering the blending cup assembly.

[0013] Optionally, the mixing cup includes baffles disposed on its inner wall, the distance between the baffles and the first blade in the radial direction being between 5 mm and 21 mm. Thus, when high-speed rotating food collides with the baffles, it can be bounced back onto the first or second blade, and this cycle can improve the food pulverization efficiency. Attached Figure Description

[0014] Figure 1 The image shown is a cross-sectional view of one embodiment of the food processor of this application;

[0015] Figure 2 As shown Figure 1 Side view of the agitator assembly shown;

[0016] Figure 3 As shown Figure 2 An exploded view of the blade assembly shown;

[0017] Figure 4 As shown Figure 3 A three-dimensional schematic diagram of the blade assembly shown;

[0018] Figure 5 As shown Figure 4 A three-dimensional view of the knife assembly from another perspective;

[0019] Figure 6 The figure shown is a three-dimensional schematic diagram of the blade assembly of this application;

[0020] Figure 7 and Figure 8 The diagram shown is a schematic diagram of another embodiment of the blade assembly of this application. 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 8 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, 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 51 and a motor 52 disposed within the housing 51.

[0024] 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, and includes a rotating shaft 22 and a blade assembly 30. The rotating shaft 22 passes through the base 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 and a cup holder assembled to the bottom of the cup body, and the base 21 is fixed between the cup body and the cup holder. The cup body and the cup holder are assembled together by threads or screw fasteners, etc., and are not limited to these methods. The base 21 is provided with electronic components such as a heating element (not shown), a temperature controller (not shown), and a temperature sensor (not shown). The heating element is used to heat the food inside the mixing cup 10.

[0025] The blade assembly 30 is detachably mounted on the rotating shaft 22. The blade assembly 30 includes a blade holder 31 and a first blade 32. The blade holder 31 includes a through hole 317 for the rotating shaft 22 to pass through. 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 stirring and pulverizing the ingredients in the mixing cup 10.

[0026] The rotating shaft 22 includes a driving section 220, which includes a plurality of protruding edges 221 extending in the vertical direction. The plurality of protruding edges 221 gradually deflect in the circumferential direction of the driving section 220, and the deflection direction of the plurality of protruding edges 221 is opposite to the rotation direction of the blade assembly 30. The blade holder 31 or the first blade 32 is provided with a driving hole 328 that matches the driving section 220. The driving hole 328 includes a plurality of protruding angles 327 extending vertically in the vertical direction.

[0027] The first blade 32 includes a fixing part 320 fixed to the blade holder 31 and a first blade 329 extending outward from the fixing part 320. The first blade 329 includes a first cutting edge 321 for cutting food and a second cutting edge 322 disposed opposite to the first cutting edge 321. The second cutting edge 322 is disposed on the bottom surface of the first blade 329 and extends obliquely downward from the edge toward the first cutting edge 321. The first blade 32 may include one or more first blades 329. In the illustrated embodiment, the first blade 32 includes three first blades 329.

[0028] Since the blade assembly 30 is detachably mounted on the rotating shaft 22, the user can disassemble the blade assembly 30 for thorough cleaning after use when the blending cup assembly 60 needs to be cleaned. This eliminates any hard-to-clean areas in the blending cup assembly 60, effectively preventing bacterial growth and odors. Simultaneously, because the second blade 322 is located on the bottom surface of the first blade 329, and extends downwards at an angle from the edge towards the first blade 321, during the rotation of the blade assembly 30, the second blade 322 experiences less upward force from the food slurry, while the first blade 329 experiences greater downward force. This creates a pressure difference in the vertical direction of the first blade 32, causing the entire first blade 32 to experience a downward force. Therefore, during the operation of the food processor 100, the blade assembly 30 is subjected to a downward force, thus more stably confining it to the rotating shaft 22 and preventing it from detaching from it.

[0029] In the illustrated embodiment, the blade holder 31 includes a main body 311 and a blade sleeve 312 assembled with the main body 311. The main body 311 and the blade sleeve 312 are assembled together by means of threads or snaps. The first blade 32 is clamped and fixed by the main body 311 and the blade sleeve 312. The blade assembly 30 also includes a steel cap 314 fixed to the upper end of the main body 311 and a shaft seal ring 315 fixed between the steel cap 314 and the main body 311. The shaft seal ring 315 presses inward against the rotating shaft 22. When the slurry in the mixing cup assembly 60 is poured out, the force between the shaft seal ring 315 and the rotating shaft 22 can limit the blade assembly 30 to the rotating shaft 22, preventing the blade assembly 30 from falling off during slurry pouring.

[0030] Preferably, the thickness W between the edge of the second cutting edge 322 and the top surface of the first blade 329 is between 0.5 mm and 1 mm. That is, the second cutting edge 322 is set to a blunt edge. This allows the first blade 32 to maintain good strength. In some embodiments, the thickness W between the edge of the second cutting edge 322 and the top surface of the first blade 329 can be 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, or any value between any two adjacent values ​​mentioned above.

[0031] Preferably, the width of the second cutting edge 322 is between 3 mm and 3.4 mm. A sufficient pressure difference is created in the vertical direction of the first blade 32, allowing the blade assembly 30 to be more stably secured on the rotating shaft 22 without detaching from it. In some embodiments, the width of the second cutting edge 322 can be 3 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, or any value between any two adjacent values ​​mentioned above.

[0032] The first blade 329 includes a third blade 323 disposed at its end, which is connected to the first blade 321, and the angle between the third blade 323 and the first blade 321 is an obtuse angle. By providing the third blade 323, the rotation direction of the food being cut or impacted by the third blade 323 is different from the rotation direction of the food being cut or impacted by the first blade 321, thereby facilitating the formation of a vortex and improving the efficiency of pulverizing the food.

[0033] Preferably, the length of the third blade 323 is between 2.5 mm and 3.2 mm. This allows for better vortex formation, further improving the food pulverization effect. In some embodiments, the length of the third blade 323 can be 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3 mm, 3.1 mm, 3.2 mm, or any value between any two adjacent values ​​mentioned above.

[0034] Please see Figures 1 to 5 The first blade 321 is disposed on the bottom surface of the first blade 329, and the first blade 321 extends downward at an angle from the edge toward the second blade 322. This design makes manufacturing easy and provides good crushing effect.

[0035] Please see Figure 6 The first blade 321 is disposed on the top surface of the first blade 329, and the first blade 321 extends obliquely upward from the edge toward the second blade 322. This design facilitates manufacturing and provides good pulverizing effect.

[0036] Preferably, the width of the first blade 321 is between 2.7 mm and 3.4 mm. This results in a better pulverizing effect. In some embodiments, the width of the first blade 321 can be 2.7 mm, 2.8 mm, 2.9 mm, 3 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, or any value between any two adjacent values ​​mentioned above.

[0037] The included angle A between the first blade 321 and the bottom or top surface of the first blade 329 is between 10 and 45 degrees. This results in a better pulverizing effect. In some embodiments, the included angle A between the first blade 321 and the bottom or top surface of the first blade 329 can be 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, or any value between any two adjacent values ​​mentioned above.

[0038] Please see Figure 7 and Figure 8 The first blade 329 is inclined downwards. This allows the blade assembly 30 to be more reliably fixed on the rotating shaft 22. Preferably, the downward inclination angle of the first blade 329 is between 2 and 15 degrees.

[0039] The blade assembly 30 includes a second blade 33 fixed to the blade holder 31, the second blade 33 being positioned above or below the first blade 32. This allows the blade assembly 30 to pulverize food more efficiently. The second blade 33 includes one or more blades, each blade being either single-edged or double-edged.

[0040] The mixing cup 10 includes baffles 19 disposed on its inner wall, and the radial distance between the baffles 19 and the first blade 32 is between 5 mm and 21 mm. Thus, high-speed rotating food collides with the baffles 19 and is then bounced back onto the first blade 321 or the second blade 322, and this cycle repeats, improving the food pulverization efficiency. In some embodiments, the radial distance between the baffles 19 and the first blade 32 can be 5 mm, 10 mm, 15 mm, 21 mm, or any value between any two adjacent values.

[0041] 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 by It comprises: a rotating shaft (22); and a blade assembly (30) detachably mounted on the rotating shaft (22), the blade assembly (30) comprising a blade holder (31) and a first blade (32), the blade holder (31) comprising a through hole (317) for the rotating shaft (22) to pass through; wherein the first blade (32) comprises a fixed part (320) fixed to the blade holder (31) and a first blade leaf (329) extending outwardly from the fixed part (320), the first blade leaf (329) comprising a first blade edge (321) for cutting food materials and a second blade edge (322) disposed opposite to the first blade edge (321), the second blade edge (322) being disposed on the bottom surface of the first blade leaf (329), and the second blade edge (322) extending downwardly from the edge to the direction of the first blade edge (321) at an angle.

2. The mixing blade assembly of claim 1, wherein: The thickness between the edge of the second blade edge (322) and the top surface of the first blade leaf (329) is between 0.5mm and 1mm; and / or, the width of the second blade edge (322) is between 3mm and 3.4mm.

3. The mixing blade assembly of claim 1, wherein: The first blade leaf (329) comprises a third blade edge (323) disposed at the end, the third blade edge (323) being connected with the first blade edge (321), and the included angle between the third blade edge (323) and the first blade edge (321) is obtuse.

4. The paddle assembly of claim 3, wherein: The length of the third blade edge (323) is between 2.5mm and 3.2mm.

5. The mixing blade assembly of claim 1, wherein: The first blade edge (321) is disposed on the bottom surface of the first blade leaf (329), and the first blade edge (321) extends downwardly from the edge to the direction of the second blade edge (322) at an angle; or, the first blade edge (321) is disposed on the top surface of the first blade leaf (329), and the first blade edge (321) extends upwardly from the edge to the direction of the second blade edge (322) at an angle.

6. The paddle assembly of claim 5, wherein: The width of the first blade edge (321) is between 2.7mm and 3.4mm; and / or, the included angle between the first blade edge (321) and the bottom surface or the top surface of the first blade leaf (329) is between 10 degrees and 45 degrees.

7. The mixing blade assembly of claim 1, wherein: The first blade leaf (329) is disposed downwardly at an angle.

8. The mixing blade assembly of claim 1, wherein: The blade assembly (30) comprises a second blade (33) fixed to the blade holder (31), the second blade (33) being disposed above or below the first blade (32).

9. A food processor, characterized in that, It comprises: a main machine (50); a stirring cup assembly (60) mounted on the main machine (50), the stirring cup assembly (60) comprising a stirring cup (10) and a bottom disc (21) fixed to the bottom of the stirring cup (10); The stirring blade assembly according to any one of claims 1 to 8 is disposed at the bottom of the stirring cup (10), wherein the rotating shaft (22) passes through the bottom disc (21), and a bearing sleeve (23) and a bearing (24) are arranged between the rotating shaft (22) and the bottom disc (21); and a cup cover assembly (70) covering the stirring cup assembly.

10. The food processor of claim 9, wherein: The stirring cup (10) comprises a turbulence rib (19) arranged on the inner wall, and the distance between the turbulence rib (19) and the first blade (32) in the radial direction is between 5 mm and 21 mm.

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