Stirring knife, stirring knife assembly and food processor
Patent Information
- Application Number
- CN202521311858.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-23
- Estimated Expiration
- 2035-06-24
AI Technical Summary
The blades of existing food processors can easily injure hands, posing a safety hazard.
Design a mixing blade with a gap between the projection of the blade edge onto the plane of the blade body and the blunt edge. The blade is made of metal and is welded together. Parameters such as the gap between the blade edge and the blunt edge, the included angle, the spacing between adjacent blades, and the spacing between the blades are optimized to ensure safety and pulverizing effect.
It effectively avoids hand cuts while maintaining high-efficiency food pulverization performance, improving safety and ease of use.
Smart Images

Figure CN224387317U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of food processing machine technology, 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] According to a first aspect of the embodiments of this specification, a stirring blade is provided, comprising: a blade body and a plurality of patch blades spaced apart along the length of the blade body; the blade body has a blunt edge; each patch blade has a cutting edge, the projection of the patch blade onto the plane of the blade body is located within the blade body, and there is a gap between the projection of the cutting edge onto the plane of the blade body and the blunt edge. Thus, because there is a gap between the projection of the cutting edge onto the plane of the blade body and the blunt edge, the user will first come into contact with the blunt edge before touching the cutting edge. In other words, by creating a gap between the projection of the cutting edge onto the plane of the blade body and the blunt edge, the user's hand is prevented from coming into contact with the cutting edge, thereby preventing the blade body from cutting the user's hand and making it safer to use.
[0005] Furthermore, the distance between the projection of the blade onto the plane of the blade body and the blunt edge is between 0.2 mm and 2.1 mm. This ensures both effective pulverization of food and prevents the blade from cutting the hand.
[0006] Furthermore, the plurality of blades are made of metal and are welded to the blade body. This design not only prevents hand cuts but also provides excellent food pulverization and is simple to manufacture.
[0007] Furthermore, the blade includes a main cutting edge and a secondary cutting edge; the main cutting edge faces the direction of rotation of the mixing blade, and the secondary cutting edge faces the direction of extension of the blade body, with an obtuse angle between the main cutting edge and the secondary cutting edge. In this way, the food is first cut by the main cutting edge and then by the secondary cutting edge, resulting in a better pulverizing effect.
[0008] Furthermore, the distance between the projections of two adjacent blades onto the plane of the blade body is between 9 mm and 18 mm. This ensures both effective pulverization of food and prevents cuts to the hands.
[0009] Furthermore, the angle between the blade and the blade body is between 30° and 80°. This ensures both the effective pulverization of food and prevents the blade from cutting the hand.
[0010] Furthermore, the patching blade is also provided with a patch body connected to the blade, and the patch body is fixed to the blade body; the spacing between two adjacent patching blades is between 0.2 mm and 2.1 mm. This allows food to pass smoothly between the two patching blades, while also ensuring that the blade body can accommodate a large number of patching blades to guarantee efficient food pulverization.
[0011] Furthermore, the blade body includes a first end and a second end opposite to the first end. The width of the blade body gradually decreases from the first end to the second end, and the first end has a notch that penetrates the blunt edge. Thus, the wider thickness of the first end increases the contact area between the blade body and the blade shaft, resulting in structural stability. The narrower width of the second end reduces the contact area with the food, lowering frictional resistance and the possibility of material adhering to the blade body, making cutting smoother and chip removal more efficient. Additionally, the notch provides a support point for clamping the blade body, facilitating injection molding of the blade body onto the blade shaft.
[0012] According to a second aspect of the embodiments of this specification, a stirring blade assembly is provided, which includes a blade shaft and a stirring blade as described in the first aspect, the stirring blade being disposed on the blade shaft.
[0013] According to a third aspect of the embodiments of this specification, a food processor is provided, which includes a food container, including a container body and a container lid covering the container body.
[0014] Host; and
[0015] The stirring blade assembly as described in the second aspect is disposed inside the food container, and the stirring blade assembly is driven by the host computer.
[0016] This application has the following beneficial effects: Because there is a gap between the projection of the blade on the plane of the blade body and the blunt edge, the user will contact the blunt edge before touching the blade. In other words, by creating a gap between the projection of the blade on the plane of the blade body and the blunt edge, the user's hand is prevented from contacting the blade, thereby preventing the patch knife from cutting the user's hand and making it safer to use.
[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description
[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.
[0019] Figure 1 This is a schematic diagram of the food processor in the embodiments of this application;
[0020] Figure 2 This is a schematic diagram of the structure of the stirring blade and the blade shaft in the embodiments of this application;
[0021] Figure 3 yes Figure 2 Top view;
[0022] Figure 4 This is a schematic diagram of the patch blade in an embodiment of this application. Detailed Implementation
[0023] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0024] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.
[0025] The embodiments described in this specification will now be described in detail.
[0026] Reference Figures 1-3 As shown, this application discloses a food processor, which includes a main unit 300, a food container 200, and a blending blade assembly 100. The food processor can be a blender, juicer, high-speed blender, stir-fry machine, soy milk maker, meat grinder, etc.
[0027] The main unit 300 includes a housing and a motor housed within the housing. The motor shaft is connected to the mixing blade assembly 100. The motor drives the mixing blade assembly 100 to rotate, thereby agitating and pulverizing the ingredients in the food container 200.
[0028] The food container 200 includes a container body 201 and a container lid 202 covering the container body 201, with the main unit 300 disposed on the container lid 202. In some embodiments, the container body 201 and the container lid 202 are connected by threads or snaps. A stirring blade assembly 100 is disposed inside the food container 200.
[0029] The stirring blade assembly 100 includes a plurality of stirring blades 101 and a blade shaft 102. The plurality of stirring blades 101 are disposed on the blade shaft 102, and the blade shaft 102 is connected to the motor shaft of the motor.
[0030] Multiple stirring blades 101 are arranged vertically along the length of the blade shaft 102, with stirring blades 101 at the same height spaced apart and upper and lower stirring blades 101 staggered. In this way, the stirring blades 101 can act on different height layers and different positions of the material simultaneously, reducing the occurrence of stirring dead zones and effectively breaking up the horizontal stratification that may form when the liquid is on top and the solid is at the bottom.
[0031] The mixing blade 101 includes a blade body 10 and a plurality of granulating blades 20 spaced apart along the length of the blade body 10. In some embodiments, the plurality of granulating blades 20 and the blade body 10 are made of metal. Preferably, the metal material is food-grade stainless steel, but it is not limited thereto. The plurality of granulating blades 20 are welded to the blade body 10. In this way, it can prevent hand cuts while providing good pulverization of food and is simple to manufacture. In other embodiments, the blade body 10 and the plurality of granulating blades 20 are both made of plastic, and the blade body 10 and the plurality of granulating blades 20 are injection molded.
[0032] The blade body 10 includes a first end and a second end opposite to the first end. The width of the blade body 10 gradually decreases from the first end to the second end, and the first end is fixed to the blade shaft 102. Thus, the wider thickness of the first end increases the contact area between the blade body 10 and the blade shaft 102, making the connection structure between them more stable. The smaller width of the second end reduces the contact area between the blade body 10 and the food, reducing frictional resistance and the possibility of material adhering to the blade body 10, resulting in smoother cutting and more efficient chip removal.
[0033] The blade body 10 is provided with a blunt edge 11. The blunt edge 11 is the two long sides between the first end and the second end. The blunt edge 11 extends in an arc shape, or it can extend in a straight line or a curve.
[0034] The first end has a notch 12 that penetrates the blunt edge 11. When the cutter body 10 is injection molded onto the cutter shaft 102, the notch 12 serves as a support point for clamping the cutter body 10, thereby ensuring the stability of the connection between the two.
[0035] The placement blade 20 is located on the top of the blade body 10. Here, "top" refers to the side closest to the host unit 300. In some cases, the placement blade 20 may also be located on the bottom of the blade body 10. Alternatively, some of the placement blades 20 may be located on the top of the blade body 10, while others may be located on the bottom. The shape and size of the placement blades 20 may be the same or different.
[0036] Please refer to the reference again. Figure 4 As shown, the patch applicator 20 has a blade 21 and a patch body 22 connected to the blade 21. The projection of the patch applicator 20 onto the plane of the patch body 10 is located within the patch body 10, and there is a gap between the projection of the blade 21 onto the plane of the patch body 10 and the blunt edge 11. In some embodiments, such as Figure 3 As shown, the distance between the projection of the blade 21 onto the plane of the blade body 10 and the blunt edge 11 is 'a', and the length of 'a' is between 0.2 mm and 2.1 mm. In some embodiments, the distance between the projection of the blade 21 onto the plane of the blade body 10 and the blunt edge 11 can be 0.2 mm, 0.8 mm, 1.2 mm, 2.1 mm, or any value between any two adjacent values mentioned above.
[0037] Because there is a gap between the projection of the blade 21 onto the plane of the blade body 10 and the blunt edge 11, the user will come into contact with the blunt edge 11 before touching the blade 21. In other words, by creating a gap between the projection of the blade 21 onto the plane of the blade body 10 and the blunt edge 11, the user's hand is prevented from coming into contact with the blade 21, thereby preventing the patch knife 20 from cutting the user's hand and making it safer to use.
[0038] like Figure 3 As shown, the distance between the projections of two adjacent blades 21 onto the plane of the blade body 10 is b, and the length of b is between 9 mm and 18 mm. This ensures that the blades 21 effectively pulverize food while preventing them from cutting the user's hand. In some embodiments, the distance between the projections of two adjacent blades 21 onto the plane of the blade body 10 can be 9 mm, 10 mm, 15 mm, 18 mm, or any value between any two of these adjacent values.
[0039] The blade 21 includes a main blade edge 211 and a secondary blade edge 212. The main blade edge 211 faces the direction of rotation of the mixing blade 101, and the secondary blade edge 212 faces the direction of extension of the blade body 10. The included angle between the main blade edge 211 and the secondary blade edge 212 is an obtuse angle, and the transition between the main blade edge 211 and the secondary blade edge 212 is smooth. In this way, the food is first cut by the main blade edge 211, and then by the secondary blade edge 212. This two consecutive cuts of the food improve the pulverizing effect of the food processor.
[0040] like Figure 2 As shown, the angle between the blade 21 and the blade body 10 is θ, and the degree of θ is between 30° and 80°. In some embodiments, the angle between the blade 21 and the blade body 10 can be 30°, 40°, 55°, 70°, 80° or any value between any two adjacent values mentioned above.
[0041] like Figure 4 As shown, the distance d between the end of the blade 21 furthest from the blade body 10 and the blade body 10 is between 0.2 mm and 5 mm. In some embodiments, the distance between the end of the blade 21 furthest from the blade body 10 and the blade body 10 can be 0.2 mm, 1.5 mm, 3 mm, 5 mm, or any value between any two adjacent values mentioned above. This ensures that the blade 21 effectively pulverizes the food while preventing the blade 21 from cutting the hand.
[0042] To increase the stability of the connection between the patch cutter 20 and the blade body 10, and to ensure the cutting length of the blade 21 in the patch cutter 20, in this embodiment, the patch body 22 is connected to the blade 21 and fixed to the blade body 10.
[0043] like Figure 3 As shown, the distance between two adjacent patch blades 20 is c. In this embodiment, c is the distance between one blade 21 and the patch body 22 on the adjacent patch blade 20, and the length of c is between 0.2 mm and 2.1 mm. This allows food to pass smoothly between the two patch blades 20 while ensuring that a large number of patch blades 20 can be installed on the blade body 10 to guarantee efficient food pulverization.
[0044] In some embodiments, the spacing between two adjacent patch blades 20 can be 0.2 mm, 0.7 mm, 1.4 mm, 2.1 mm, or any value between any two of the above adjacent values.
[0045] It should be noted that the technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all 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: The blade body (10) and a plurality of patch blades (20) spaced apart along the length of the blade body (10); the blade body (10) is provided with a blunt edge (11); the patch blades (20) are provided with a cutting edge (21), the projection of the patch blades (20) in the plane of the blade body (10) is located within the blade body (10), and there is a gap between the projection of the cutting edge (21) in the plane of the blade body (10) and the blunt edge (11).
2. The stirring blade according to claim 1, characterized in that, The distance between the projection of the blade (21) onto the plane of the blade body (10) and the blunt edge (11) is between 0.2 mm and 2.1 mm.
3. The stirring blade according to claim 1, characterized in that, The plurality of patch cutters (20) are made of metal and are welded to the cutter body (10).
4. The stirring blade according to claim 1, characterized in that, The blade (21) includes a main blade edge (211) and a secondary blade edge (212); the main blade edge (211) faces the direction of rotation of the stirring blade, and the secondary blade edge (212) faces the direction of extension of the blade body (10); the included angle between the main blade edge (211) and the secondary blade edge (212) is an obtuse angle.
5. The stirring blade according to claim 1, characterized in that, The distance between the projections of two adjacent blades (21) onto the plane of the blade body (10) is between 9 mm and 18 mm.
6. The stirring blade according to claim 1, characterized in that, The angle between the blade (21) and the blade body (10) is between 30° and 80°.
7. The stirring blade according to claim 1, characterized in that, The patch knife (20) is also provided with a patch body (22) connected to the blade (21), and the patch body (22) is fixed to the knife body (10); the distance between two adjacent patch knives (20) is between 0.2 mm and 2.1 mm.
8. The stirring blade according to claim 1, characterized in that, The blade body (10) includes a first end and a second end opposite to the first end. The width of the blade body (10) gradually decreases from the first end to the second end, and the first end is provided with a notch (12) that penetrates the blunt edge (11).
9. A stirring blade assembly, characterized in that, It includes a blade shaft (102) and a stirring blade (101) as described in any one of claims 1 to 8, the stirring blade (101) being disposed on the blade shaft (102).
10. A food processor, characterized in that, It includes: A food container (200) includes a container body (201) and a container lid (202) covering the container body (201); Main unit (300); and The stirring blade assembly (100) as described in claim 9 is disposed within the food container (200), and the stirring blade assembly (100) is driven by the host (300).