Stirring blade, stirring blade assembly and food processor
By alternating blunt and sharp blades on the mixing blade, the problem of easy hand injury from mixing blades is solved, achieving safer and more efficient food grinding and optimized motor power.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHAOXING SUPOR DOMESTIC ELECTRICAL APPLIANCE CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-23
AI Technical Summary
The blades of existing food processors can easily injure your hands, making them unsafe to use.
Design a mixing blade with alternating blunt and sharp blades. The blunt blades protrude beyond the cutting line and are designed to contact the hand first to avoid direct contact with the sharp blades. The blunt blades perform primary crushing, while the sharp blades perform secondary crushing. The blade width and length are designed to improve the crushing effect and reduce motor power.
It effectively reduces the risk of hand injury from the mixing blade, improves the efficiency of food grinding, reduces the power requirement of the motor, and has a simple manufacturing process.
Smart Images
Figure CN224387311U_ABST
Abstract
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 back and a cutting edge for cutting food. The cutting edge includes a sharp edge and blunt edges alternately arranged with the sharp edge. The sharp edge includes a plurality of first sharp edges and a plurality of second sharp edges. The plurality of first sharp edges include a first cutting line extending along an arc or a straight line, and the plurality of second sharp edges include a second cutting line extending along another arc or another straight line. The blunt edges protrude beyond the first and second cutting lines in the direction in which the blade cuts the food. Because the blunt blade protrudes beyond the first and second cutting lines in the direction the blade cuts the food, the user will come into contact with the blunt blade before touching the first and second sharp blades. In other words, by designing a blunt blade protruding beyond the first and second sharp blades, the user's hand is prevented from coming into contact with the first and second sharp blades, thus avoiding cuts to the user's hand and making it safer to use. During the process of the mixing blade pulverizing the food, the blunt blade performs primary pulverization, while the first and second sharp blades perform secondary pulverization, achieving a good pulverization effect.
[0005] Furthermore, each of the first blade portion and each of the second blade portions are arranged alternately.
[0006] Furthermore, every two of the first blades are arranged alternately with every two of the second blades.
[0007] Furthermore, the end of the blade furthest from the mounting portion is designed as a sharp edge, which improves the pulverization effect on food and reduces motor power. The end of the blade closest to the mounting portion is designed as a blunt edge. This simplifies the manufacturing process and makes it easier to manufacture the mixing blade.
[0008] Furthermore, the width of the first blade portion ranges from 3 mm to 10 mm, and the width of the second blade portion also ranges from 3 mm to 10 mm. This design reduces the risk of hand injury while simultaneously providing a better pulverizing effect on food.
[0009] Furthermore, the blunt edge protrudes from the first and second cutting lines 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.
[0010] 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.
[0011] 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.
[0012] 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.
[0013] 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
[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 A three-dimensional schematic diagram of the stirring blade assembly shown;
[0016] Figure 3 As shown Figure 2 The front view of the stirring blade is shown.
[0017] Figure 4 As shown Figure 3 The AA cross-sectional view shown;
[0018] Figure 5 As shown Figure 3 The BB cross-section shown;
[0019] Figure 6 The image shown is a front view of another embodiment of the stirring blade of this application. Detailed Implementation
[0020] 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.
[0021] 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.
[0022] The food processor 100 can be a blender, juicer, high-speed blender, stir-fry machine, soy milk maker, meat grinder, etc.
[0023] Please see Figures 1 to 2 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.
[0024] 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.
[0025] The mixing blade 35 includes a mounting portion 10 and a blade 20 extending outward from the mounting portion 10. The blade 20 includes a back 25 and a cutting edge 21 for cutting food. The cutting edge 21 includes a sharp edge 211 and blunt edges 212 alternating with the sharp edge 211. The sharp edge 211 includes a plurality of first sharp edges 216 and a plurality of second sharp edges 219. The plurality of first sharp edges 216 include a first cutting line 213 extending along an arc or a straight line, and the plurality of second sharp edges 219 include a second cutting line 218 extending along another arc or another straight line. The blunt edges 212 protrude beyond the first cutting lines 213 and the second cutting lines 218 in the direction in which the blade 20 cuts food. The mixing blade 35 is mounted to the blade shaft 30 via the mounting portion 10. The number of blunt blades 212 is two or more, the number of first sharp blades 216 is two or more, and the number of second sharp blades 219 is two or more. The shapes and sizes of the blunt blades 212 may be the same or different. The "first cutting line" and "second cutting line" mentioned here refer to the cutting edges used for cutting food.
[0026] Because the blunt blade 212 protrudes beyond the first cutting line 213 and the second cutting line 218 in the direction that the blade 20 cuts the food, the user will come into contact with the blunt blade 212 before contacting the first sharp blade 216 and the second sharp blade 219. In other words, by setting the blunt blade 212 to protrude beyond the first sharp blade 216 and the second sharp blade 219, the user's hand is prevented from coming into contact with the first sharp blade 216 and the second sharp blade 219, thereby preventing the first sharp blade 216 and the second sharp blade 219 from cutting the user's hand, making it safer to use. During the process of the mixing blade 35 pulverizing the food, the blunt blade 212 performs primary pulverization of the food, while the first sharp blade 216 and the second sharp blade 219 perform secondary pulverization, which can achieve a good pulverization effect.
[0027] Please see Figure 3 Each of the first blade portion 216 and each of the second blade portions 219 are arranged alternately. Please refer to... Figure 6 In one embodiment, two first blade portions 216 are alternately arranged with two second blade portions 219. In another embodiment, three first blade portions 216 are alternately arranged with three second blade portions 219. These are just some examples and are not limited to the examples described above.
[0028] In one embodiment, the end of the blade 21 furthest from the mounting portion 10 is configured as a sharp edge. This results in a higher pulverization effect on food and reduces motor power consumption.
[0029] In one embodiment, the end of the blade 21 near the mounting portion 10 is configured as a blunt edge. This simplifies the manufacturing process and makes the production of the stirring blade more convenient.
[0030] The width of the first blade portion 216 ranges from 3 mm to 10 mm, and the width of the second blade portion 219 also ranges from 3 mm to 10 mm. This design reduces the risk of hand injury while also providing better pulverization of food.
[0031] In some embodiments, the width W1 of the first 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 adjacent values mentioned above. In some embodiments, the width W1 of the second blade portion 219 can be 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, or any value between any two adjacent values mentioned above.
[0032] The blunt blade 212 protrudes from the first cutting line 213 and the second cutting line 218 in the direction that the blade 20 cuts the food, with a length H ranging from 0.2 mm to 2.1 mm. This design reduces the risk of hand injury and provides better pulverization of the food.
[0033] In some embodiments, the length H of the blunt blade portion 212 protruding from the first cutting line 213 and the second cutting line 218 in the direction of the blade 20 cutting 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 adjacent 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] In some embodiments, please refer to Figure 4 The blade back 25 includes a blade back surface 251, and the blunt edge portion 212 includes a blunt edge surface 217 connected to the blade back surface 251. The included angle α between the blunt edge surface 217 and the blade back surface 251 ranges from 13.3 degrees to 19.8 degrees. Thus, on the one hand, the blunt edge portion 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] The included angle α between the blunt cutting edge 217 and the back surface 251 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 ones mentioned above.
[0040] In other embodiments, please refer to Figure 5 The blade back 25 includes a blade back 251, and the first blade portion 216 and the second blade portion 219 include a blade surface 214 connected to the blade back 251. The included angle β between the blade surface 214 and the blade back 251 ranges from 16.9 degrees to 26.6 degrees. Thus, on the one hand, the first blade portion 216 and the second blade portion 219 are 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 back surface 251 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 blade surfaces.
[0042] 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.
[0043] Testing standards:
[0044] Sample preparation: Cut 200 grams of standard-sized carrots (about 15-20 cm long) into 2-3 cm pieces.
[0045] Food processor preparation: Use a clean meat grinder and assemble and operate it according to the manufacturer's instructions.
[0046] Instructions: Put the prepared carrot pieces into a meat grinder and grind them.
[0047] 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.
[0048]
[0049]
[0050] 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.
[0051] 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
[0052] When the width of the blade 211 is less than 3 mm, it is impossible to crush carrots to level 1 within 30 seconds; when the width of the blade 211 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 211 to between 3 mm and 10 mm, which can ensure crushing efficiency and avoid injuring the user's hand, making it safer to use.
[0053] 2. The length of the blunt blade 212 protruding beyond the first cutting line 213 and the second cutting line 218 in the direction of the blade 20 cutting the food (hereinafter referred to as "the protrusion length of the blunt blade") was tested. The table below shows the time required for mixing carrot particles to reach level 1 with different blunt blade protrusion lengths.
[0054]
[0055]
[0056] 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 211 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.
[0057] 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.
[0058] 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
[0059] 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.
[0060] 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.
[0061]
[0062]
[0063] 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 211. 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.
[0064] 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 in that: It includes a mounting part (10) and a blade (20) extending outward from the mounting part (10). The blade (20) includes a back (25) and a cutting edge (21) for cutting food. The cutting edge (21) includes a sharp edge (211) and a blunt edge (212) arranged alternately with the sharp edge (211). The sharp edge (211) includes a plurality of first sharp edges (216) and a plurality of second sharp edges (219). The plurality of first sharp edges (216) includes a first cutting line (213) extending along an arc or a straight line. The plurality of second sharp edges (219) includes a second cutting line (218) extending along another arc or another straight line. The blunt edge (212) protrudes beyond the first cutting line (213) and the second cutting line (218) in the direction in which the blade (20) cuts food.
2. The stirring blade as described in claim 1, characterized in that: Each of the first blade portion (216) and each of the second blade portions (219) are arranged alternately.
3. The stirring blade as described in claim 1, characterized in that: Two of the first blades (216) and two of the second blades (219) are arranged alternately.
4. The stirring blade as described in claim 1, characterized in that: The end of the blade (21) away from the mounting portion (10) is configured as a sharp edge; and / or, the end of the blade (21) near the mounting portion (10) is configured as a blunt edge.
5. The stirring blade as described in claim 1, characterized in that: The width of the first blade portion (216) is between 3 mm and 10 mm, and the width of the second blade portion (219) is between 3 mm and 10 mm.
6. The stirring blade as described in claim 1, characterized in that: The blunt blade (212) protrudes from the first cutting line (213) and the second cutting line (218) in the direction that the blade (20) cuts the food, and its length ranges from 0.2 mm to 2.1 mm.
7. The stirring blade as described in claim 1, characterized in that: The thickness of the end of the blunt cutting edge (212) ranges from 0.05 mm to 1 mm.
8. The stirring blade as described in claim 1, characterized in that: The width of the blunt cutting edge (212) ranges from 0.5 mm to 2.4 mm.
9. A stirring blade assembly, characterized in that: 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).