Stirring knife assembly and food processor

By designing a mixing blade assembly with a blunt blade, the problems of low pulverization efficiency and hand injury associated with existing mixing blade assemblies are solved, achieving more efficient and safer food pulverization.

CN224671365UActive Publication Date: 2026-08-25ZHEJIANG SHAOXING SUPOR DOMESTIC ELECTRICAL APPLIANCE CO LTD
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Patent Information

Application Number
CN202521952805.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-10
Publication Date
2026-08-25
Estimated Expiration
2035-09-10

AI Technical Summary

Technical Problem

Existing mixing blade components have the problems of low efficiency in crushing food and easy injury to hands.

Method used

Design a mixing blade assembly, including a rotating shaft and a moving blade assembly. The moving blade assembly is provided with a wave-shaped annular guide groove and a matching protrusion. The moving blade assembly rotates around the rotating shaft and reciprocates up and down. The moving blade is provided with first and second blunt blades protruding from the sharp blade to avoid direct contact with the sharp blade and reduce the risk of hand injury. At the same time, the combination of blunt and sharp blades improves the crushing efficiency.

Benefits of technology

It improves the efficiency of food grinding, reduces the risk of injury to the user's hands, and achieves a safer food grinding effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a stirring knife assembly and a food processor. The stirring knife assembly comprises a rotating shaft and a movable knife assembly. The movable knife assembly comprises a mounting sleeve sleeved on the rotating shaft and a movable knife arranged on the mounting sleeve. One of the rotating shaft and the mounting sleeve is provided with a wavy annular guide groove in the circumferential direction, and the other is provided with a convex portion matched with the guide groove. When the rotating shaft rotates, the convex portion slides in the guide groove, so as to drive the movable knife assembly to rotate around the center line of the rotating shaft, and at the same time, the movable knife assembly reciprocates up and down along the rotating shaft. The movable knife comprises a first mounting portion and a first blade connected with the first mounting portion. The first blade comprises a first blade body, a first sharp blade and a plurality of first blunt blades arranged at intervals along the first sharp blade. The plurality of first blunt blades protrude from the first sharp blade in the cutting direction. Thus, good crushing effect can be achieved, and hands are not easy to be hurt.
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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 can 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 assembly set inside the food container. Existing mixing blade assemblies have the problems of low efficiency in crushing food and easy injury to hands. Utility Model Content

[0003] This application provides a blending blade assembly and a food processor that improves the efficiency of pulverizing food while reducing the risk of hand injury and making it safer to use.

[0004] This application provides a stirring blade assembly. The stirring blade assembly includes: a rotating shaft; and a moving blade assembly, including a mounting sleeve fitted onto the rotating shaft and a moving blade disposed on the mounting sleeve. One of the rotating shaft and the mounting sleeve has a wavy annular guide groove along its circumference, and the other has a protrusion that mates with the guide groove. When the rotating shaft rotates, the protrusion slides within the guide groove, causing the moving blade assembly to rotate around the rotation center line of the rotating shaft, while simultaneously reciprocating up and down along the rotating shaft. The moving blade includes a first mounting portion and a first blade blade connected to the first mounting portion. The first blade blade includes a first blade body, a first sharp edge, and a plurality of first blunt edges spaced apart along the first sharp edge. The plurality of first blunt edges protrude from the first sharp edge in the cutting direction. As the moving blade assembly reciprocates up and down along the rotating shaft, it can chop ingredients of different heights, improving the efficiency of pulverizing ingredients. Because the first blunt blade protrudes from the first sharp blade in the cutting direction, the user will come into contact with the first blunt blade before touching the first sharp blade. In other words, by setting the first blunt blade to protrude from the first sharp blade, the user's hand can be prevented from coming into contact with the first sharp blade, thus avoiding the first sharp blade from cutting the user's hand and making it safer to use. During the process of the moving blade pulverizing ingredients, the first blunt blade performs primary pulverization of the ingredients, and the first sharp blade performs secondary pulverization of the ingredients, which can achieve a good pulverization effect.

[0005] Furthermore, the spacing between two adjacent first blunt blades is between 1 mm and 18 mm. This ensures that the first sharp blade effectively pulverizes the food while preventing the blade from cutting the hand.

[0006] Furthermore, the first blunt blade protrudes from the first sharp blade in the cutting direction by a distance between 0.2 mm and 2.1 mm. This design reduces the risk of hand injury and provides better pulverization of food.

[0007] Furthermore, the width of the first 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 thickness of the first blunt blade tip ranges from 0.05 mm to 1 mm. This makes it less likely to injure hands and also provides a better pulverizing effect on food.

[0009] Furthermore, the rotating shaft is fixedly equipped with a main blade, which includes a second mounting part and a second blade connected to the second mounting part. The second blade includes a second blade body, a second sharp blade, and a plurality of second blunt blades spaced apart along the second sharp blade. The plurality of second blunt blades protrude from the second sharp blade in the cutting direction. In this way, the main blade and the moving blade work together to make the food processor pulverize the ingredients more evenly; in addition, by setting the second blunt blades protruding from the second sharp blade, the user's hands can be prevented from being cut by the second sharp blade, making it safer to use.

[0010] Furthermore, the spacing between two adjacent second blunt blades is between 1 mm and 18 mm; and / or, the amount by which the second blunt blade protrudes from the second sharp blade in the cutting direction is between 0.2 mm and 2.1 mm; and / or, the width of the second blunt blade is between 0.5 mm and 2.4 mm; and / or, the thickness of the tip of the second blunt blade is between 0.05 mm and 1 mm. This design reduces the risk of hand injury and provides better pulverization of food.

[0011] Furthermore, the guide groove extends in the form of a sine or cosine curve. This makes the movement of the protrusion within the guide groove smoother and reduces noise.

[0012] Furthermore, the rotating shaft includes a first shaft and a second shaft assembled with the first shaft. The first shaft includes a lower wall surface extending in a wavy shape, and the second shaft includes an upper wall surface extending in a wavy shape and disposed opposite to the lower wall surface. The guide groove is formed between the lower wall surface and the upper wall surface, and the protrusion is disposed inside the mounting sleeve. This makes the assembly of the stirring blade assembly easier. Attached Figure Description

[0013] Figure 1 The image shown is a perspective view of one embodiment of the food processor of this application;

[0014] Figure 2 As shown Figure 1A three-dimensional schematic diagram of the stirring blade assembly shown;

[0015] Figure 3 As shown Figure 2 An exploded perspective view of the moving blade assembly shown.

[0016] Figure 4 As shown Figure 3 Top view of the mounting sleeve shown;

[0017] Figure 5 As shown Figure 3 The front view of the moving tool is shown;

[0018] Figure 6 As shown Figure 2 The exploded 3D view of the rotating shaft and main blade is shown. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] The food processor 100 can be a blender, juicer, high-speed blender, stir-fry machine, soy milk maker, meat grinder, etc.

[0022] Please see Figures 1 to 6The 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.

[0023] 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 rotating shaft 10 and a moving blade assembly 20.

[0024] The moving blade assembly 20 includes a mounting sleeve 21 sleeved on the rotating shaft 10 and a moving blade 22 disposed on the mounting sleeve 21. One of the rotating shaft 10 and the mounting sleeve 21 is provided with a wavy annular guide groove 111 in the circumferential direction, and the other is provided with a protrusion 211 that cooperates with the guide groove 111. When the rotating shaft 10 rotates, the protrusion 211 slides in the guide groove 111, causing the moving blade assembly 20 to rotate around the rotation center line of the rotating shaft 10. At the same time, the moving blade assembly 20 reciprocates up and down along the rotating shaft 10.

[0025] The moving blade 22 includes a first mounting part 221 and a first blade 222 connected to the first mounting part 221. The first blade 222 includes a first blade body 223, a first sharp blade 224 and a plurality of first blunt blades 225 spaced apart along the first sharp blade 224. The plurality of first blunt blades 225 protrude from the first sharp blade 224 in the cutting direction.

[0026] As the moving blade assembly 20 reciprocates up and down along the rotating shaft 10, the moving blade 22 can chop ingredients of different heights, improving the efficiency of pulverizing the ingredients. Since the first blunt blade 225 protrudes from the first sharp blade 224 in the cutting direction, the user will come into contact with the first blunt blade 225 before touching the first sharp blade 224. In other words, by setting the first blunt blade 225 to protrude from the first sharp blade 224, the user's hand can be prevented from coming into contact with the first sharp blade 224, thereby preventing the first sharp blade 224 from cutting the user's hand and making it safer to use. During the process of the moving blade 22 pulverizing the ingredients, the first blunt blade 225 performs primary pulverization of the ingredients, and the first sharp blade 224 performs secondary pulverization of the ingredients, which can achieve a good pulverization effect.

[0027] The spacing W between two adjacent first blunt blades 225 is between 1 mm and 18 mm. This ensures that the first sharp blade 224 can effectively pulverize the food while preventing the first sharp blade 224 from cutting the hand.

[0028] In some embodiments, the distance W between two adjacent first blunt blades 225 can be 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, or any value between any two of the above adjacent ones.

[0029] The first blunt blade 225 protrudes from the first sharp blade 224 in the cutting direction by a dimension L between 0.2 mm and 2.1 mm. This design reduces the risk of hand injury and provides better pulverization of food.

[0030] In some embodiments, the dimension L of the first blunt blade 225 protruding from the first sharp blade 224 in the direction of 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 of the above.

[0031] The width of the first blunt blade 225 ranges from 0.5 mm to 2.4 mm. This makes it less likely to injure hands and provides a better pulverizing effect on food.

[0032] In some embodiments, the width W of the first blunt edge 225 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.

[0033] The thickness of the tip of the first blunt blade 225 ranges from 0.05 mm to 1 mm. This makes it less likely to injure hands and provides better pulverization of food.

[0034] In some embodiments, the thickness D of the end of the first blunt blade 225 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 adjacent values ​​mentioned above.

[0035] The rotating shaft 10 is fixedly equipped with a main blade 12. The main blade 12 includes a second mounting part 121 and a second blade 122 connected to the second mounting part 121. The second blade 122 includes a second blade body 123, a second sharp blade 124, and a plurality of second blunt blades 125 spaced apart along the second sharp blade 124. The plurality of second blunt blades 125 protrude from the second sharp blade 124 in the cutting direction. In this way, by cooperating with the moving blade 22, the food pulverized by the food processor 100 can be made to be more uniform in size; in addition, by setting the second blunt blades 125 protruding from the second sharp blade 124, the second sharp blade 124 can be prevented from cutting the user's hand, making it safer to use.

[0036] The spacing between two adjacent second blunt blades 125 is between 1 mm and 18 mm. This ensures that the second sharp blade 124 can effectively pulverize food while preventing the second sharp blade 124 from cutting the hand.

[0037] The second blunt blade 125 protrudes from the second sharp blade 124 in the cutting direction by an amount between 0.2 mm and 2.1 mm. This design reduces the risk of hand injury and provides better pulverization of food.

[0038] The width of the second blunt blade 125 ranges from 0.5 mm to 2.4 mm. This makes it less likely to injure hands and provides a better pulverizing effect on food.

[0039] The thickness of the tip of the second blunt blade 125 ranges from 0.05 mm to 1 mm. This makes it less likely to injure hands and provides a better pulverizing effect on food.

[0040] The guide groove 111 extends in the shape of a sine or cosine curve. In this way, the movement of the protrusion 211 within the guide groove 111 is smoother and the noise is lower.

[0041] The rotating shaft 10 includes a first shaft 113 and a second shaft 114 assembled with the first shaft 113. The first shaft 113 includes a lower wall surface 1131 extending in a wave-like shape, and the second shaft 114 includes an upper wall surface 1141 extending in a wave-like shape and disposed opposite to the lower wall surface 1131. A guide groove 111 is formed between the lower wall surface 1131 and the upper wall surface 1141, and a protrusion 211 is disposed inside the mounting sleeve 21. This makes the assembly of the stirring blade assembly 60 easier.

[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A stirring blade assembly, characterized in that: It includes: Rotating shaft (10); and The moving blade assembly (20) includes a mounting sleeve (21) sleeved on the rotating shaft (10) and a moving blade (22) disposed on the mounting sleeve (21). One of the rotating shaft (10) and the mounting sleeve (21) is provided with a wavy annular guide groove (111) in the circumferential direction, and the other is provided with a protrusion (211) that cooperates with the guide groove (111). When the rotating shaft (10) rotates, the protrusion (211) slides in the guide groove (111), causing the moving blade assembly (20) to rotate around the rotation center line of the rotating shaft (10), and at the same time, the moving blade assembly (20) reciprocates up and down along the rotating shaft (10). The moving blade (22) includes a first mounting part (221) and a first blade (222) connected to the first mounting part (221). The first blade (222) includes a first blade body (223), a first sharp blade (224), and a plurality of first blunt blades (225) spaced apart along the first sharp blade (224). The plurality of first blunt blades (225) protrude from the first sharp blade (224) in the cutting direction.

2. The stirring blade assembly as described in claim 1, characterized in that: The spacing between two adjacent first blunt edges (225) is between 1 mm and 18 mm.

3. The stirring blade assembly as described in claim 1, characterized in that: The first blunt edge (225) protrudes from the first sharp edge (224) in the cutting direction by a size between 0.2 mm and 2.1 mm.

4. The stirring blade assembly as described in claim 1, characterized in that: The width of the first blunt edge (225) ranges from 0.5 mm to 2.4 mm.

5. The stirring blade assembly as described in claim 1, characterized in that: The thickness of the end of the first blunt cutting edge (225) ranges from 0.05 mm to 1 mm.

6. The stirring blade assembly as described in claim 1, characterized in that: The rotating shaft (10) is fixedly equipped with a main blade (12). The main blade (12) includes a second mounting part (121) and a second blade (122) connected to the second mounting part (121). The second blade (122) includes a second blade body (123), a second sharp blade (124), and a plurality of second blunt blades (125) spaced apart along the second sharp blade (124). The plurality of second blunt blades (125) protrude from the second sharp blade (124) in the cutting direction.

7. The stirring blade assembly as described in claim 6, characterized in that: The spacing between two adjacent second blunt cutting edges (125) is between 1 mm and 18 mm; and / or, The second blunt edge (125) protrudes from the second sharp edge (124) in the cutting direction by an amount between 0.2 mm and 2.1 mm; and / or, The width of the second blunt cutting edge (125) ranges from 0.5 mm to 2.4 mm; and / or, The thickness of the end of the second blunt blade (125) ranges from 0.05 mm to 1 mm.

8. The stirring blade assembly as described in claim 1, characterized in that: The guide groove (111) extends in the form of a sine curve or a cosine curve.

9. The stirring blade assembly as described in claim 1, characterized in that: The rotating shaft (10) includes a first shaft (113) and a second shaft (114) assembled with the first shaft (113). The first shaft (113) includes a lower wall surface (1131) extending in a wave shape. The second shaft (114) includes an upper wall surface (1141) extending in a wave shape and disposed opposite to the lower wall surface (1131). The guide groove (111) is formed between the lower wall surface (1131) and the upper wall surface (1141). The protrusion (211) is disposed inside the mounting sleeve (21).

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 any one of claims 1 to 9 is disposed within the food container (40), and the stirring blade assembly is driven by the host (50).