Stirring blade, stirring blade assembly and food processor

Abstract

The application provides a stirring blade, a stirring blade assembly and a food processor. The stirring blade comprises a mounting portion and a blade extending outwardly from the mounting portion, the blade comprising a body and a cutting edge for cutting food materials, the cutting edge comprising a plurality of sharp edge portions and a plurality of blunt edge portions arranged alternately with the plurality of sharp edge portions, the blunt edge portions protruding from the sharp edge portions in a direction in which the blade cuts food materials, and the width of the sharp edge portions ranges between 3 mm and 10 mm. In this way, the user's hand is prevented from contacting the sharp edge portions, thereby preventing the blade from cutting the user's hand, and the use is safer.

Description

Technical Field

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

[0002] As people's living standards continue to improve, 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, such as meat grinders, include a food container and a mixing blade inside the container; however, the mixing blade can easily cause injury to the hand. Utility Model Content

[0003] This application provides a mixing blade, a mixing blade assembly, and a food processor, which reduces the risk of hand injury and makes them safer to use.

[0004] This application provides a mixing blade. The mixing blade includes a mounting portion and a blade extending outward from the mounting portion. The blade includes a body and a cutting edge for cutting food. The cutting edge includes a plurality of sharp blade portions and a plurality of blunt blade portions arranged alternately with the sharp blade portions. The blunt blade portions protrude beyond the sharp blade portions in the direction the blade cuts the food, and the width of the sharp blade portions ranges from 3 mm to 10 mm. Because the blunt blade portions protrude beyond the sharp blade portions in the direction the blade cuts the food, the user will come into contact with the blunt blade portions before contacting the sharp blade portions. In other words, by setting the blunt blade portions protruding beyond the sharp blade portions, the user's hand is prevented from coming into contact with the sharp blade portions, thereby preventing the sharp blade portions from cutting the user's hand and making it safer to use. During the process of the mixing blade pulverizing food, the blunt blade portions perform primary pulverization, and the sharp blade portions perform secondary pulverization, achieving a good pulverization effect. In addition, because the width of the sharp blade portions ranges from 3 mm to 10 mm, it is less likely to injure the hand and also provides a better pulverization effect on the food.

[0005] Furthermore, the blunt edge protrudes from the sharp edge by a length ranging from 0.2 mm to 2.1 mm in the direction the blade cuts the food. This reduces the risk of hand injury and provides better pulverization of the food.

[0006] Furthermore, the thickness of the blunt blade tip ranges from 0.05 mm to 1 mm. This makes it less likely to injure hands and also provides better pulverization of food.

[0007] Furthermore, the width of the blunt blade ranges from 0.5 mm to 2.4 mm. This makes it less likely to injure hands and also provides a better pulverizing effect on food.

[0008] Furthermore, the body includes a body surface, and the blunt cutting edge includes a blunt cutting edge surface connected to the body surface, with the included angle between the blunt cutting edge surface and the body surface ranging from 13.3 degrees to 19.8 degrees. This design reduces the likelihood of the blunt cutting edge becoming chipped, and also allows for a motor power consumption of less than 300 watts, resulting in lower costs.

[0009] Furthermore, the body includes a body surface, and the blade portion includes a blade surface connected to the body surface. The included angle between the blade surface and the body surface ranges from 16.9 degrees to 26.6 degrees. This design reduces the likelihood of the blade becoming dull, and allows for a motor power consumption of less than 300 watts, resulting in lower costs.

[0010] Furthermore, the body includes a body surface, the blunt blade portion includes a blunt blade surface connected to the body surface, the sharp blade portion includes a sharp blade surface connected to the body surface, and the connection line between the blunt blade surface and the body surface is on the same arc line as the connection line between the sharp blade surface and the body surface. This facilitates cleaning of the stirring blade by the user.

[0011] Furthermore, the sharp blade portion includes a sharp edge, and the side surface of the blunt blade portion transitions to the sharp edge through a rounded corner. This facilitates cleaning of the mixing blade by the user.

[0012] Furthermore, the edges of the blunt cutting edge are rounded. This prevents the blunt cutting edge from scratching the user, making it safer to use.

[0013] Furthermore, the end of the cutting blade furthest from the mounting portion is designed as a sharp edge. This results in a higher pulverization effect on food and reduces motor power. The end of the cutting blade closest to the mounting portion is designed as a blunt edge. This simplifies the manufacturing process and makes the production of the mixing blade more convenient.

[0014] Furthermore, the cutting edge includes a cutting line connecting a plurality of the sharp blade portions, and a plurality of blunt blade portions are formed on the cutting line; or, the sharp blade portion includes a sharp blade surface, the cutting edge includes a cutting line connecting a plurality of the sharp blade portions, and a plurality of blunt blade portions are formed on the sharp blade surface and protrude from the cutting line.

[0015] Furthermore, the sharp blade portion includes a sharp blade surface, the cutting edge includes a cutting line connecting the plurality of sharp blade portions, the plurality of blunt blade portions includes a plurality of first blunt blade portions and a plurality of second blunt blade portions, the plurality of first blunt blade portions are formed on the cutting line, the plurality of second blunt blade portions are formed on the sharp blade surface and protrude from the cutting line, and the plurality of first blunt blade portions and the plurality of second blunt blade portions are alternately arranged along the extension direction of the sharp blade portion.

[0016] This application provides a stirring blade assembly, which includes a blade shaft and a stirring blade as described above, wherein the stirring blade is disposed on the blade shaft.

[0017] This application provides a food processor, which includes: a food container, including a container body and a container lid covering the container body; a main unit; and a mixing blade assembly as described above, disposed inside the food container, wherein the mixing blade assembly is driven by the main unit. Attached Figure Description

[0018] Figure 1 The image shown is a cross-sectional view of one embodiment of the food processor of this application;

[0019] Figure 2 As shown Figure 1 A three-dimensional schematic diagram of the stirring blade assembly shown;

[0020] Figure 3 As shown Figure 2 The front view of the stirring blade is shown;

[0021] Figure 4 As shown Figure 3 The AA cross-sectional view shown;

[0022] Figure 5 As shown Figure 3 The BB cross-section shown;

[0023] Figures 6 to 9 The image shown is a perspective view of another embodiment of the stirring blade of this application. 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] The food processor 100 can be a blender, juicer, high-speed blender, stir-fry machine, soy milk maker, meat grinder, etc.

[0027] Please see Figures 1 to 9 The food processor 100 includes a food container 40, a main unit 50, and a blending blade assembly 60. The food container 40 is used to hold food such as meat and vegetables, and includes a container body 41 and a container lid 42 covering the container body 41.

[0028] In the illustrated embodiment, the main unit 50 is disposed on the container lid 42, and the stirring blade assembly 60 is disposed inside the food container 40. The stirring blade assembly 60 is driven by the main unit 50. The stirring blade assembly 60 includes a blade shaft 30 and a stirring blade 35, with the stirring blade 35 disposed on the blade shaft 30. The main unit 50 includes a housing and a motor (not shown) disposed within the housing. The motor shaft is connected to the blade shaft 30 of the stirring blade assembly 60. The stirring blade assembly 60 is used to agitate and pulverize the food in the food container 40.

[0029] Please see Figure 3The mixing blade 35 includes a mounting portion 10 and a blade 20 extending outward from the mounting portion 10. The blade 20 includes a body 25 and a cutting edge 21 for cutting food. The cutting edge 21 includes a plurality of sharp blade portions 216 and a plurality of blunt blade portions 212 arranged alternately with the sharp blade portions 216. The blunt blade portions 212 protrude from the sharp blade portions 216 in the direction in which the blade 20 cuts the food, and the width W1 of the sharp blade portions 216 ranges from 3 mm to 10 mm. The mixing blade 35 is mounted to the blade shaft 30 via the mounting portion 10. The number of blunt blade portions 212 is two or more. The shape and size of the blunt blade portions 212 can be the same or different.

[0030] Because the blunt blade 212 protrudes from the sharp blade 216 in the direction the blade 20 cuts the food, the user will come into contact with the blunt blade 212 before contacting the sharp blade 216. In other words, by setting the blunt blade 212 to protrude from the sharp blade 216, the user's hand is prevented from coming into contact with the sharp blade 216, thereby preventing the sharp blade 216 from cutting the user's hand and making it safer to use. During the process of the mixing blade 35 crushing the food, the blunt blade 212 performs primary crushing of the food, and the sharp blade 216 performs secondary crushing of the food, which can achieve a good crushing effect. In addition, since the width W1 of the sharp blade 216 is between 3 mm and 10 mm, it is not easy to hurt the hand and has a better crushing effect on the food.

[0031] In some embodiments, the width W1 of the blade portion 216 can be 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, or any value between any two of the above.

[0032] Preferably, the length H of the blunt blade portion 212 protruding from the sharp blade portion 216 in the direction of the blade 20 cutting the food ranges from 0.2 mm to 2.1 mm. This reduces the risk of hand injury and provides better pulverization of the food.

[0033] In some embodiments, the length by which the blunt blade portion 212 protrudes from the sharp blade portion 216 in the direction that the blade 20 cuts the food can be 0.2 mm, 0.5 mm, 0.8 mm, 1.1 mm, 1.4 mm, 1.7 mm, 2.1 mm, or any value between any two of the above.

[0034] Preferably, the thickness D of the blunt blade 212 is between 0.05 mm and 1 mm. This reduces the risk of injury to the hand and provides better pulverization of food.

[0035] In some embodiments, the thickness D of the end of the blunt cutting edge 212 can be 0.05 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, or any value between any two of the above.

[0036] Preferably, the width W2 of the blunt blade 212 ranges from 0.5 mm to 2.4 mm. This reduces the risk of hand injury and provides better pulverization of food.

[0037] In some embodiments, the width W2 of the blunt cutting edge 212 can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.4 mm, or any value between any two adjacent values ​​mentioned above.

[0038] See Figure 4 The body 25 includes a body surface 215, and the blunt cutting edge 212 includes a blunt cutting edge surface 217 connected to the body surface 215. The included angle α between the blunt cutting edge surface 217 and the body surface 215 ranges from 13.3 degrees to 19.8 degrees. Thus, on the one hand, the blunt cutting edge 212 is less prone to chipping, and on the other hand, the motor power can be less than 300 watts, resulting in low cost.

[0039] In some embodiments, the included angle α between the blunt edge surface 217 and the body surface 215 can be 13.3 degrees, 14 degrees, 15 degrees, 16 degrees, 17 degrees, 18 degrees, 19 degrees, 19.8 degrees, or any value between any two adjacent surfaces mentioned above.

[0040] See Figure 5 The body 25 includes a body surface 215, and the blade portion 216 includes a blade surface 214 connected to the body surface 215. The included angle β between the blade surface 214 and the body surface 215 ranges from 16.9 degrees to 26.6 degrees. Thus, on the one hand, the blade portion 216 is less prone to chipping, and on the other hand, the motor power can be less than 300 watts, resulting in low cost.

[0041] The included angle β between the blade surface 214 and the body surface 215 can be 16.9 degrees, 18 degrees, 19 degrees, 20 degrees, 21 degrees, 21.8 degrees, 22 degrees, 23 degrees, 24 degrees, 25 degrees, 26.6 degrees, or any value between any two adjacent surfaces mentioned above.

[0042] Please see Figure 3The body 25 includes a body surface 215, the blunt blade portion 212 includes a blunt blade surface 217 connected to the body surface 215, and the sharp blade portion 216 includes a sharp blade surface 214 connected to the body surface 215. The line connecting the blunt blade surface 217 and the body surface 215 is on the same arc as the line connecting the sharp blade surface 214 and the body surface 215. This facilitates cleaning of the mixing blade by the user.

[0043] Please see Figure 6 The line connecting the blunt blade surface 217 and the body surface 215 can also be on a different arc line than the line connecting the sharp blade surface 214 and the body surface 215.

[0044] Please see Figure 3 The sharp blade portion 216 includes a sharp edge surface 214, and the side of the blunt blade portion 212 transitions to the sharp edge surface 214 through a rounded corner. This facilitates cleaning of the mixing blade by the user.

[0045] The edges of the blunt cutting edge 212 are rounded to prevent them from scratching the user, making it safer to use.

[0046] In one embodiment, the end of the cutting blade 21 furthest from the mounting portion 10 is configured as a sharp blade. This results in a higher pulverization effect on food and reduces motor power consumption.

[0047] In one embodiment, the end of the cutting blade 21 near the mounting portion 10 is configured as a blunt blade. This simplifies the manufacturing process and makes the manufacture of the stirring blade more convenient.

[0048] In one embodiment, see Figure 7 The cutting blade 21 includes a cutting line 213 connecting a plurality of sharp blade portions 216, and a plurality of blunt blade portions 212 are formed on the cutting line 213.

[0049] In another embodiment, the sharp blade portion 216 includes a sharp blade surface 214, the cutting blade 21 includes a cutting line 213 connecting a plurality of the sharp blade portions 216, and the plurality of blunt blade portions 212 are formed on the sharp blade surface 214 and protrude from the cutting line 213.

[0050] In yet another embodiment, see [reference] Figure 8 and Figure 9The sharp blade portion 216 includes a sharp blade surface 214, the cutting blade 21 includes a cutting line 213 connecting the plurality of sharp blade portions 216, and the plurality of blunt blade portions 212 includes a plurality of first blunt blade portions 2121 and a plurality of second blunt blade portions 2122. The plurality of first blunt blade portions 2121 are formed on the cutting line 213, and the plurality of second blunt blade portions 2122 are formed on the sharp blade surface 214 and protrude from the cutting line 213. The plurality of first blunt blade portions 2121 and the plurality of second blunt blade portions 2122 are arranged alternately along the extension direction of the sharp blade portion 216.

[0051] During the development of the food processor 100, the R&D team conducted extensive testing on various parameters of the mixing blade 35. Here is a brief introduction to the testing standards and results.

[0052] Testing standards:

[0053] Sample preparation: Cut 200 grams of standard-sized carrots (about 15-20 cm long) into 2-3 cm pieces.

[0054] Food processor preparation: Use a clean meat grinder and assemble and operate it according to the manufacturer's instructions.

[0055] Instructions: Put the prepared carrot pieces into a meat grinder and grind them.

[0056] Assessment: Pour the crushed carrots into a sieve with 5mm apertures and shake gently. Observe the size and proportion of the remaining carrot particles in the sieve and grade them according to the following criteria.

[0057] grade Carrot residue percentage on sieve Carrot Particle Description Level 1 Less than or equal to 5% It is fine and uniform, with almost no large particles remaining. Level 2 Greater than 5% and less than or equal to 15% Most of the particles are relatively fine, with a small number of larger particles remaining. Level 3 Greater than 15% and ≤ 30% The particle size is uneven, with more and larger particles remaining. Level 4 Greater than 30% The particle size is extremely uneven, with many large particles remaining.

[0058] 1. The width of the blade 216 was tested. The table below shows the time required for different blade widths to grind carrot granules to level 1.

[0059] Sharp edge width time grade 2 mm 52 seconds Level 1 3 mm 30 seconds Level 1 5 mm 20 seconds Level 1 6 mm 15 seconds Level 1 8 mm 13 seconds Level 1 10 mm 8 seconds Level 1 11 mm 6 seconds Level 1

[0060] When the width of the blade 216 is less than 3 mm, it is impossible to crush carrots to level 1 within 30 seconds; when the width of the blade 216 is greater than 10 mm, it is easy to cut the user's hand during use. Therefore, this application limits the width of the blade 216 to between 3 mm and 10 mm, which can ensure crushing efficiency and avoid injuring the user's hand, making it safer to use.

[0061] 2. The length of the blunt blade 212 protruding beyond the cutting line 213 in the direction of the blade 20 cutting the food (hereinafter referred to as "the protrusion length of the blunt blade") is tested. The table below shows the time required for stirring blades with different blunt blade protrusion lengths to reach level 1 when stirring carrot particles.

[0062]

[0063]

[0064] When the protruding length of the blunt blade is greater than 2.1 mm, it is impossible to crush carrots to level 1 within 30 seconds; when the protruding length of the blunt blade is less than 0.2 mm, the user's hand is likely to come into contact with the sharp blade 216 and be injured. Therefore, this application limits the protruding length of the blunt blade to between 0.2 mm and 2.1 mm, which can ensure crushing efficiency and avoid injury to the user's hand, making it safer to use.

[0065] 3. The thickness of the blunt blade 212 end was tested. The table below shows the time required for stirring carrot particles to reach level 1 with stirring blades of different blunt blade end thicknesses.

[0066] Thickness of the blunt end time grade 0.01 mm 4 seconds Level 1 0.05 mm 8 seconds Level 1 0.1 mm 15 seconds Level 1 0.4 mm 19 seconds Level 1 0.6 mm 24 seconds Level 1 0.9 mm 28 seconds Level 1 1.0 mm 30 seconds Level 1 1.1 mm 36 seconds Level 1

[0067] When the thickness of the blunt blade 212 tip is greater than 1 mm, it is impossible to pulverize carrots to Grade 1 within 30 seconds; when the thickness of the blunt blade 212 tip is less than 0.05 mm, the blunt blade 212 is likely to cut the user's hand. Therefore, this application limits the thickness of the blunt blade 212 tip to between 0.05 mm and 1 mm, which ensures pulverization efficiency while avoiding injury to the user's hand, making it safer to use.

[0068] 4. The width of the blunt blade 212 was tested. The table below shows the time required for mixing carrot particles to reach level 1 with different blunt blade widths.

[0069]

[0070]

[0071] When the width of the blunt blade 212 is greater than 2.4 mm, it is impossible to crush carrots to level 1 within 30 seconds; when the width of the blunt blade 212 is less than 0.5 mm, the user's hand is easily cut by the sharp blade 216. Therefore, this application limits the width of the blunt blade 212 to between 0.5 mm and 2.4 mm, which can ensure crushing efficiency and avoid injury to the user's hand, making it safer to use.

[0072] 5. Test the included angle between the blade surface 214 and the body surface 215 (hereinafter referred to as "blade angle"). The table below shows the motor power required for stirring blades with different blade angles.

[0073] Angle of the blade Average power of motor 33.7 degrees 305 watts 26.6 degrees 298 watts 21.8 degrees 288 watts 18.4 degrees 283 watts 16.9 degrees 276 watts 16 degrees 273 watts

[0074] When the angle of the blade is less than 16.9 degrees, it is easy for the blade to roll during the crushing process; when the angle of the blade is greater than 26.6 degrees, the motor power needs to be greater than 300 watts, which is costly. Therefore, this application limits the angle of the blade to between 16.9 degrees and 26.6 degrees, which can both avoid blade rolling and reduce motor power, thus helping to reduce costs.

[0075] 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, characterized by: It includes a mounting part (10) and a blade (20) extending outward from the mounting part (10). The blade (20) includes a body (25) and a cutting edge (21) for cutting food. The cutting edge (21) includes a plurality of sharp blades (216) and a plurality of blunt blades (212) arranged alternately with the plurality of sharp blades (216). The blunt blades (212) protrude from the sharp blades (216) in the direction in which the blade (20) cuts food, and the width of the sharp blades (216) is between 3 mm and 10 mm.

2. The mixing blade of claim 1, wherein: The blunt cutting edge (212) protrudes from the sharp cutting edge (216) in the direction that the blade (20) cuts the food by a length ranging from 0.2 mm to 2.1 mm; and / or, The thickness of the blunt cutting edge (212) at its end ranges from 0.05 mm to 1 mm; and / or, The width of the blunt cutting edge (212) ranges from 0.5 mm to 2.4 mm.

3. The mixing blade of claim 1, wherein: The body (25) includes a body surface (215), and the blunt cutting edge (212) includes a blunt cutting edge surface (217) connected to the body surface (215). The included angle between the blunt cutting edge surface (217) and the body surface (215) is between 13.3 degrees and 19.8 degrees.

4. The mixing blade of claim 1, wherein: The body (25) includes a body surface (215), and the blade portion (216) includes a blade surface (214) connected to the body surface (215). The included angle between the blade surface (214) and the body surface (215) is between 16.9 degrees and 26.6 degrees.

5. The mixing blade of claim 1, wherein: The body (25) includes a body surface (215), the blunt cutting edge (212) includes a blunt cutting edge surface (217) connected to the body surface (215), the sharp cutting edge (216) includes a sharp cutting edge surface (214) connected to the body surface (215), the line connecting the blunt cutting edge surface (217) and the body surface (215) and the line connecting the sharp cutting edge surface (214) and the body surface (215) are on the same arc line; and / or, The sharp-edged portion (216) includes a sharp-edged surface (214), and the side of the blunt-edged portion (212) transitions to the sharp-edged surface (214) through a rounded corner; and / or, The edges of the blunt cutting edge (212) are rounded.

6. The mixing blade of claim 1, wherein: The end of the cutting edge (21) away from the mounting portion (10) is configured as a sharp edge; and / or, the end of the cutting edge (21) near the mounting portion (10) is configured as a blunt edge.

7. The mixing blade of claim 1, wherein: The cutting edge (21) includes a cutting line (213) connecting a plurality of the sharp blade portions (216), and the plurality of blunt blade portions (212) are formed on the cutting line (213); or, The blade portion (216) includes a blade surface (214), the cutting edge (21) includes a cutting line (213) connecting the plurality of blade portions (216), and the plurality of blunt blade portions (212) are formed on the blade surface (214) and protrude from the cutting line (213).

8. The mixing blade of claim 1, wherein: The sharp blade portion (216) includes a sharp blade surface (214), the cutting blade (21) includes a cutting line (213) connecting the plurality of sharp blade portions (216), the plurality of blunt blade portions (212) includes a plurality of first blunt blade portions (2121) and a plurality of second blunt blade portions (2122), the plurality of first blunt blade portions (2121) are formed on the cutting line (213), the plurality of second blunt blade portions (2122) are formed on the sharp blade surface (214) and protrude from the cutting line (213), and the plurality of first blunt blade portions (2121) and the plurality of second blunt blade portions (2122) are alternately arranged along the extension direction of the sharp blade portion (216).

9. A stirring blade assembly characterized by: It includes a cutter shaft (30) and a stirring blade as described in any one of claims 1 to 8, the stirring blade being disposed on the cutter shaft (30).

10. A food processor, characterized in that: It includes: The food container (40) includes a container body (41) and a container lid (42) covering the container body (41); Host (50); and The stirring blade assembly as described in claim 9 is disposed within the food container (40), and the stirring blade assembly is driven by the host (50).

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