Stirring blade, stirring blade assembly and food processor
By alternating sharp and blunt blades on the mixing blade, the problem of easy hand injury from the mixing blade is solved, achieving a safer and better pulverizing effect.
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 sharp and blunt blades. The blunt blades protrude beyond the cutting line. The sharp blades are used for secondary grinding, and the blunt blades are used for primary grinding. Direct contact with the sharp blades is avoided to reduce the risk of hand injury.
It effectively reduces the risk of hand injury when using the mixing blade, while improving the food grinding effect.
Smart Images
Figure CN224387304U_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 plurality of sharp edges and a plurality of blunt edges, arranged alternately. Each of the sharp edges includes a cutting line, and the blunt edges protrude beyond the cutting line in the direction the blade cuts the food. The extensions of any two adjacent cutting lines intersect. Because the blunt edges protrude beyond the cutting line in the direction the blade cuts the food, the user will come into contact with the blunt edges before contacting the sharp edges. In other words, by providing blunt edges protruding beyond the cutting line, the user's hand is prevented from contacting the sharp edges, thus avoiding cuts and making it safer to use. During the food pulverization process, the blunt edges perform primary pulverization, and the sharp edges perform secondary pulverization, achieving a good pulverization effect.
[0005] Furthermore, all cutting lines are convex arcs. This allows the blade to cut the food more thoroughly and effectively, resulting in better pulverization. All cutting lines are concave arcs. This allows the blade to cut the food more thoroughly and effectively, resulting in better pulverization. All cutting lines are straight lines. This simplifies manufacturing.
[0006] Furthermore, the cutting line includes at least two of a convex arc, a concave arc, and a straight line.
[0007] Furthermore, the two adjacent cutting lines are respectively convex arc lines and concave arc lines.
[0008] Furthermore, two adjacent cutting lines are respectively a convex arc and a straight line.
[0009] Furthermore, two adjacent cutting lines are respectively a concave arc and a straight line.
[0010] Furthermore, the width of the blade portion ranges from 3 mm to 10 mm.
[0011] Furthermore, the length of the blunt blade protruding beyond the cutting line in the direction the blade cuts 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. The thickness of the blunt blade tip ranges from 0.05 mm to 1 mm. This again reduces the risk of hand injury and provides better pulverization of the food. The width of the blunt blade ranges from 0.5 mm to 2.4 mm. This again reduces the risk of hand injury and provides better pulverization of the 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] Figures 6 to 9 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 plurality of sharp blades 211 and a plurality of blunt blades 212, which are arranged alternately. Each of the sharp blades 211 includes a cutting line 219. The blunt blades 212 protrude from the cutting line 219 in the direction that the blade 20 cuts the food. The extension lines of any two adjacent cutting lines 219 intersect. Here, the "cutting line" refers to the cutting edge of the sharp blade 211 used to cut the 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, and the number of sharp blades 211 is two or more. The shape and size of the blunt blades 212 can be the same or different.
[0026] Since the blunt blade 212 protrudes beyond the cutting line 219 in the direction that the blade 20 cuts the food, the user will come into contact with the blunt blade 212 before contacting the sharp blade 211. In other words, by setting the blunt blade 212 to protrude beyond the cutting line 219, the user's hand is prevented from coming into contact with the sharp blade 211, thereby preventing the sharp blade 211 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 211 performs secondary crushing of the food, which can achieve a good crushing effect.
[0027] In one embodiment, the cutting lines 219 are all convex arcs. A "convex arc" refers to an arc that bulges out in the direction the blade 20 cuts the food. This allows the blade portion 211 to cut the food more thoroughly and effectively, resulting in better pulverization. In another embodiment, the cutting lines 219 are all concave arcs (see...). Figure 9 "Concave arc" refers to an arc that curves inward toward the back of the blade 25. This allows the blade portion 211 to cut the food more thoroughly and effectively, resulting in better pulverization. In another embodiment, the cutting lines 219 are all straight lines (see...). Figure 7 Thus, manufacturing is simple.
[0028] In some embodiments, the cutting line 219 includes at least two of a convex arc, a concave arc, and a straight line. The cutting line 219 may include two of a convex arc, a concave arc, and a straight line, or it may include all three: a convex arc, a concave arc, and a straight line.
[0029] Please see Figure 3 The two adjacent cutting lines 219 are respectively convex arc lines and concave arc lines.
[0030] Please see Figure 6 The two adjacent cutting lines 219 are a convex arc and a straight line, respectively.
[0031] Please see Figure 8 The two adjacent cutting lines 219 are respectively a concave arc and a straight line.
[0032] 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.
[0033] 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.
[0034] The width of the blade 211 ranges from 3 mm to 10 mm. This makes it less likely to injure hands and provides a better pulverizing effect on food.
[0035] In some embodiments, the width W1 of the blade portion 211 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.
[0036] The blunt blade 212 protrudes from the cutting line 219 in the direction of the blade 20 cutting the food by 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.
[0037] In some embodiments, the length H of the blunt blade portion 212 protruding from the sharp blade portion 211 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.
[0038] 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.
[0039] 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.
[0040] 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.
[0041] 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.
[0042] 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.
[0043] 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.
[0044] In other embodiments, please refer to Figure 5 The blade back 25 includes a blade back surface 251, and the cutting edge 211 includes a cutting edge surface 214 connected to the blade back surface 251. The included angle β between the cutting edge surface 214 and the blade back surface 251 ranges from 16.9 degrees to 26.6 degrees. Thus, on the one hand, the cutting edge 211 is less prone to chipping, and on the other hand, the motor power can be less than 300 watts, resulting in low cost.
[0045] 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.
[0046] 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.
[0047] Testing standards:
[0048] Sample preparation: Cut 200 grams of standard-sized carrots (about 15-20 cm long) into 2-3 cm pieces.
[0049] Food processor preparation: Use a clean meat grinder and assemble and operate it according to the manufacturer's instructions.
[0050] Instructions: Put the prepared carrot pieces into a meat grinder and grind them.
[0051] 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.
[0052]
[0053]
[0054] 1. The width of the blade 211 was tested. The table below shows the time required for different blade widths to grind carrot granules to level 1.
[0055] 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
[0056] 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.
[0057] 2. The length of the blunt blade 212 protruding from the cutting line 219 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.
[0058]
[0059]
[0060] 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.
[0061] 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.
[0062] 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
[0063] 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.
[0064] 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.
[0065]
[0066]
[0067] 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.
[0068] 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 plurality of sharp blades (211) and a plurality of blunt blades (212). The plurality of sharp blades (211) and the plurality of blunt blades (212) are arranged alternately. The plurality of sharp blades (211) each includes a cutting line (219). The blunt blades (212) protrude from the cutting line (219) in the direction in which the blade (20) cuts food. The extension lines of any two adjacent cutting lines (219) intersect.
2. The stirring blade as described in claim 1, characterized in that: The cutting lines (219) are all convex arcs; or, the cutting lines (219) are all concave arcs; or, the cutting lines (219) are all straight lines.
3. The stirring blade as described in claim 1, characterized in that: The cutting line (219) includes at least two of the following: a convex arc, a concave arc, and a straight line.
4. The stirring blade as described in claim 1, characterized in that: The two adjacent cutting lines (219) are respectively convex arc lines and concave arc lines.
5. The stirring blade as described in claim 1, characterized in that: The two adjacent cutting lines (219) are a convex arc and a straight line, respectively.
6. The stirring blade as described in claim 1, characterized in that: The two adjacent cutting lines (219) are a concave arc and a straight line, respectively.
7. The stirring blade as described in claim 1, characterized in that: The width of the blade (211) ranges from 3 mm to 10 mm.
8. The stirring blade as described in claim 1, characterized in that: The length of the blunt blade (212) protruding from the cutting line (219) in the direction of the blade (20) cutting the food ranges from 0.2 mm to 2.1 mm; and / or, the thickness of the end of the blunt blade (212) ranges from 0.05 mm to 1 mm; and / or, the width of the blunt blade (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).