Blender assembly and food processor
By designing a smooth motion track and fasteners in the blending blade assembly, the gap between the main blade and the handle is solved, improving the safety and stability of the food processor, reducing foreign object entrapment and wear, and enhancing cleaning convenience.
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
- 2025-05-23
- Publication Date
- 2026-05-26
AI Technical Summary
In existing food processors, the accuracy of the movement track between the main blade and the blade arm is affected by dimensional errors and deformation, resulting in radial gaps that allow foreign objects to easily get stuck, affecting performance and making cleaning difficult.
A stirring blade assembly was designed. By setting a first step and a second step on the main blade to form a track surface, and then fitting it with the second track surface and the contact surface of the blade holder, a smooth motion track is formed. Fasteners are used to fix it, which enhances coaxial positioning, reduces radial gaps, and prevents foreign objects from entering.
It improves the operational safety and stability of the agitator assembly, reduces wear, and enhances cleaning convenience and structural reliability.
Smart Images
Figure CN224269108U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of small household appliance technology, and in particular to a blending blade assembly and a food processor. Background Technology
[0002] Food processors have gained popularity and recognition, becoming an indispensable appliance in people's lives.
[0003] In existing food processor blade assemblies, a motion track is formed between the main blade and the blade holder. The accuracy of this motion track is affected by dimensional errors and deformations of the main blade and blade holder. In actual use, inaccurate motion track can lead to significant wear on the blade holder, and radial gaps can easily appear between the blade holder and the main blade. This allows foreign objects to easily get stuck in the gaps, affecting the performance of the food processor assembly and making it difficult to clean.
[0004] Therefore, it is necessary to provide an improved blending blade assembly and food processor to solve the above problems. Utility Model Content
[0005] This application provides a mixing blade assembly and a food processor to prevent foreign objects from entering, thereby improving safety and reliability.
[0006] This application discloses a stirring blade assembly, including a main blade and a blade rod assembled above the main blade. The main blade includes a base and a first step portion and a second step portion that protrude sequentially upward from the base. The top of the first step portion forms a first track surface, and the top of the second step portion forms a contact surface. The blade rod includes a rod body and an installation space disposed within the rod body. The bottom of the rod body forms a second track surface opposite to the first track surface, and the contact surface is in contact with the second track surface.
[0007] Thus, the top of the first step forms a first track surface, which is axially opposite to the second track surface, together forming a motion track. Simultaneously, the second step protrudes upwards from the first step, its top forming a contact surface. This contact surface fits against the second track surface, effectively blocking the radial gap between the rod and the main blade, preventing foreign objects from entering the mixing blade assembly along the gap, and improving the safety and stability of the mixing blade assembly's operation.
[0008] Furthermore, the main blade also includes a first fixing part extending upward from the second step portion, the first fixing part extending into the installation space, and the shaft sleeved on the outside of the first fixing part.
[0009] In this way, the coaxial positioning of the main blade and the blade rod is strengthened by the sleeve fit between the rod body and the first fixing part, making the structural design of the stirring blade assembly more reasonable.
[0010] Furthermore, the stirring blade assembly also includes a fastener, and the blade bar also includes a second fixing part located within the mounting space, wherein the first fixing part and the second fixing part are assembled together by the fastener.
[0011] In this way, the blade holder and the main blade are assembled, making the overall structure of the mixing blade assembly more stable and reliable.
[0012] Furthermore, the gap between the top surface of the first fixing part and the bottom surface of the second fixing part is less than 0.5 mm.
[0013] Thus, when assembling the tool holder and the main tool, on the one hand, it provides a certain installation space in the axial direction for the contact between the second track surface and the contact surface, and for the connection between the first fixing part and the second fixing part. On the other hand, it limits the gap between the first fixing part and the second fixing part, thereby enhancing the connection strength between the tool holder and the main tool.
[0014] Furthermore, the first track surface, the second track surface, and the contact surface all undulate circumferentially, and the undulation directions of the first track surface, the second track surface, and the contact surface are consistent.
[0015] In this way, the distance between the first and second track surfaces in the axial direction remains consistent, and the contact surface can be made to fit the second track surface in the entire circumferential direction, so that the radial gap between the main cutter and the cutter shank can be sealed more effectively.
[0016] Furthermore, the first track surface, the second track surface, and the contact surface all extend in a sine or cosine curve in the circumferential direction.
[0017] This makes the motion track formed by the first track surface and the second track surface smoother and more fluid.
[0018] Furthermore, along the radial direction from the outside to the inside, both the second track surface and the contact surface gradually tilt downwards, while the first track surface gradually tilts upwards.
[0019] This makes the structure of the motion track more reasonable, which is conducive to the discharge of foreign objects that enter the motion track along the second track surface and the first track surface during the motion process.
[0020] Furthermore, the stirring blade assembly also includes a shaft cover, and a receiving cavity is formed in the base. The shaft cover is located in the receiving cavity and is interference-fitted with the inner wall of the base.
[0021] In this way, the shaft cover and the base are fixed together.
[0022] Furthermore, the main blade also includes a pair of blades, which are centrally symmetrically arranged on the outer side of the base.
[0023] In this way, the mixing blade assembly can pulverize the ingredients.
[0024] This application also discloses a food processor, including the mixing blade assembly described above.
[0025] This application has the following beneficial effects: The top of the first step forms a first track surface, and the first track surface and the second track surface are arranged opposite each other along the axial direction to form a motion track. At the same time, the second step protrudes upward from the first step, and the top forms a contact surface. The contact surface fits against the second track surface, effectively blocking the radial gap between the rod body and the main blade, preventing foreign objects from entering the interior of the mixing blade assembly along the gap, and improving the safety and stability of the mixing blade assembly operation.
[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0028] Figure 1 This is an exploded view of the stirring blade assembly in an embodiment of this application.
[0029] Figure 2 This is a perspective view of the main blade in the embodiment of this application.
[0030] Figure 3 yes Figure 2 A sectional view.
[0031] Figure 4 This is a cross-sectional view of the tool holder in an embodiment of this application.
[0032] Figure 5 yes Figure 1 Cross-sectional view of the stirring blade assembly.
[0033] Figure 6 yes Figure 5 Enlarged view of point A in the middle. Detailed Implementation
[0034] 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.
[0035] 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.
[0036] The mixing blade assembly and food processor of this application will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can complement or combine with each other.
[0037] like Figure 1 As shown, this application provides a stirring blade assembly, including a main blade 10, a blade holder 20, a fastener 30, and a shaft cover 40. The blade holder 20 is assembled above the main blade 10 by the fastener 30, and the shaft cover 40 is disposed at the bottom of the main blade 10.
[0038] Please refer to the following at the same time Figure 2 and Figure 3 The main blade 10 includes a base 11, a first stepped portion 12, a second stepped portion 13, and a first fixing portion 14. The first stepped portion 12, the second stepped portion 13, and the first fixing portion 14 protrude upwards sequentially from the base 11, and the diameters of the base 11, the first stepped portion 12, the second stepped portion 13, and the first fixing portion 14 decrease sequentially. The top of the first stepped portion 12 forms a first track surface 121, and the top of the second stepped portion 13 forms a contact surface 131.
[0039] Please refer to the following at the same time Figures 4 to 6 The blade 20 includes a shaft 21 and a second fixing part 22. An installation space 201 is provided within the shaft 21, and the second fixing part 22 is located within the installation space 201. A first fixing part 14 extends into the installation space 201 and is fixed together with the second fixing part 22 to achieve the assembly of the main blade 10 and the blade 20. The shaft 21 is sleeved on the outside of the first fixing part 14, and the inner wall of the shaft 21 is in contact with the outer wall of the first fixing part 14. Through the sleeved cooperation of the shaft 21 and the first fixing part 14, the coaxial positioning of the main blade 10 and the blade 20 is strengthened, making the structural design of the stirring blade assembly more reasonable.
[0040] The outer diameter of the shaft 21 is approximately equal to the outer diameter of the first stepped portion 12. A second track surface 211 is formed at the bottom of the shaft 21, which is positioned opposite to the first track surface 121, and the second track surface 211 and the first track surface 121 are axially separated. The contact surface 131 is in contact with the second track surface 211. The outer diameter of the second stepped portion 13 is smaller than the outer diameter of the shaft 21, and the radial width of the contact surface 131 is smaller than the radial width of the second track surface 211.
[0041] Thus, the first track surface 121, the second track surface 211 and the outer wall of the second step portion 13 together form a groove-shaped motion track 50, and the attached blade of the stirring blade assembly (not shown in the figure) can move along the motion track 50.
[0042] Due to factors such as dimensional errors and component wear, a radial gap can easily appear between the rod body 21 and the first fixing part 14. During the operation of the stirring blade assembly, foreign objects can easily enter the radial gap between the rod body 21 and the first fixing part 14 along the motion track 50, affecting the performance of the stirring blade assembly and making it difficult to clean.
[0043] The stirring blade assembly of this application forms a first track surface 121 on the top of the first step portion 12. The first track surface 121 and the second track surface 211 are arranged axially opposite to each other, forming a motion track 50. Simultaneously, the second step portion 13 protrudes upward from the first step portion 12, forming a contact surface 131 at its top. The contact surface 131 fits against the second track surface 211, effectively blocking the radial gap between the rod body 21 and the main blade 10, preventing foreign objects from entering the interior of the stirring blade assembly along the gap, and improving the safety and stability of the stirring blade assembly's operation. Furthermore, the fit between the contact surface 131 and the second track surface 211 limits the distance between the first track surface 121 and the second track surface 211, improving the precision retention of the stirring blade assembly and reducing wear between parts.
[0044] Along the radial direction from the outside to the inside, both the second track surface 211 and the contact surface 131 gradually slope downwards, while the first track surface 121 gradually slopes upwards. Thus, the motion track 50 has an overall shape that is lower on the outside and higher on the inside, making its structural design more rational. Even if foreign objects enter the motion track 50, they can be discharged along the inclined second track surface 211 and first track surface 121 using the centrifugal force generated during the stirring process. It is understandable that the tilt direction and angle of the second track surface 211, the contact surface 131, and the first track surface 121 can be flexibly set according to the actual needs and design requirements of the product.
[0045] Furthermore, the first track surface 121, the second track surface 211, and the contact surface 131 all undulate circumferentially, and the undulation directions of the first track surface 121, the second track surface 211, and the contact surface 131 are consistent. This ensures that the axial distance between the first track surface 121 and the second track surface 211 remains consistent, making the shape of the motion track 50 more stable and smooth. Moreover, the contact surface 131 can achieve full circumferential contact with the second track surface 211, allowing for more effective sealing of the radial gap between the main cutter 10 and the cutter shank 20.
[0046] Specifically, in this embodiment, the first track surface 121, the second track surface 211, and the contact surface 131 all extend in the circumferential direction in the form of a sine or cosine curve, and the shape of the motion track 50 in the circumferential direction also correspondingly forms a sine or cosine curve. This makes the motion track 50 smoother and more fluid, thereby making the operation of the stirring blade assembly more stable and reliable.
[0047] The first fixing part 14 and the second fixing part 22 are assembled together by fasteners 30, realizing the assembly of the blade holder 20 and the main blade 10, making the overall structure of the stirring blade assembly more stable and reliable.
[0048] Specifically, the first fixing part 14 has a first fixing hole 141 at its top, and the second fixing part 22 has a corresponding second fixing hole 221. The fastener 30 passes through the first fixing hole 141 and the second fixing hole 221 sequentially from bottom to top, thereby fixing the first fixing part 14 and the second fixing part 22. In this embodiment, the fastener 30 is a bolt.
[0049] The gap between the top surface of the first fixing part 14 and the bottom surface of the second fixing part 22 is less than 0.5 mm. When assembling the main blade 10 and the blade shank 20, firstly, an axial installation gap of 0.2 mm to 0.5 mm is reserved between the first fixing part 14 and the second fixing part 22, and the fastener 30 is passed through the first fixing hole 141 and the second fixing hole 221. Then, by tightening the fastener 30, the axial distance between the first fixing part 14 and the second fixing part 22 is continuously reduced until the second track surface 211 and the contact surface 131 are completely pressed together, thus blocking the radial gap between the main blade 10 and the blade shank 20.
[0050] Thus, when assembling the tool holder 20 and the main blade 10, on the one hand, a certain amount of installation space is provided for the contact between the second track surface 211 and the contact surface 131 and the connection between the first fixing part 14 and the second fixing part 22 in the axial direction; on the other hand, the gap between the first fixing part 14 and the second fixing part 22 is limited, thereby enhancing the connection strength between the tool holder 20 and the main blade 10.
[0051] The main blade 10 also includes blades 15. There is a pair of blades 15, which are centrally symmetrically arranged on the outside of the base 11, enabling the mixing blade assembly to pulverize the food.
[0052] like Figure 1 and Figure 5 As shown, a receiving cavity 111 is formed inside the base 11, and the shaft cover 40 is located inside the receiving cavity 111 and is interference-fitted with the inner wall of the base 11, thereby fixing the shaft cover 40 to the base 11.
[0053] This application also provides a food processor, including the mixing blade assembly described above.
[0054] The stirring blade assembly of this application forms a first track surface 121 on the top of the first step portion 12. The first track surface 121 and the second track surface 211 are arranged axially opposite to each other, forming a motion track 50. Simultaneously, the second step portion 13 protrudes upward from the first step portion 12, forming a contact surface 131 at its top. The contact surface 131 fits against the second track surface 211, effectively blocking the radial gap between the rod body 21 and the main blade 10, preventing foreign objects from entering the interior of the stirring blade assembly along the gap, and improving the safety and stability of the stirring blade assembly's operation. Furthermore, the fit between the contact surface 131 and the second track surface 211 limits the distance between the first track surface 121 and the second track surface 211, improving the precision retention of the stirring blade assembly and reducing wear between parts.
[0055] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with 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 assembly, characterized in that, The device includes a main blade (10) and a blade shank (20) assembled above the main blade (10). The main blade (10) includes a base (11) and a first step portion (12) and a second step portion (13) that protrude sequentially upward from the base (11). The top of the first step portion (12) forms a first track surface (121), and the top of the second step portion (13) forms a contact surface (131). The blade shank (20) includes a shaft (21) and an installation space (201) disposed in the shaft (21). The bottom of the shaft (21) forms a second track surface (211) opposite to the first track surface (121), and the contact surface (131) fits against the second track surface (211).
2. The stirring blade assembly according to claim 1, characterized in that, The main blade (10) also includes a first fixing part (14) extending upward from the second step part (13), the first fixing part (14) extending into the mounting space (201), and the shaft (21) sleeved on the outside of the first fixing part (14).
3. The stirring blade assembly according to claim 2, characterized in that, The stirring blade assembly also includes a fastener (30), and the blade (20) also includes a second fixing part (22) located in the mounting space (201), wherein the first fixing part (14) and the second fixing part (22) are assembled together by the fastener (30).
4. The stirring blade assembly according to claim 3, characterized in that, The gap between the top surface of the first fixing part (14) and the bottom surface of the second fixing part (22) is less than 0.5 mm.
5. The stirring blade assembly according to claim 1, characterized in that, The first track surface (121), the second track surface (211), and the contact surface (131) all undulate up and down along the circumference, and the undulation direction of the first track surface (121), the second track surface (211), and the contact surface (131) is consistent.
6. The stirring blade assembly according to claim 2, characterized in that, The first track surface (121), the second track surface (211), and the contact surface (131) all extend in a sine or cosine curve in the circumferential direction.
7. The stirring blade assembly according to claim 1, characterized in that, Along the radial direction from the outside to the inside, the second track surface (211) and the contact surface (131) both gradually tilt downwards, while the first track surface (121) gradually tilts upwards.
8. The stirring blade assembly according to claim 1, characterized in that, The stirring blade assembly also includes a shaft cover (40), and a receiving cavity (111) is formed in the base (11). The shaft cover (40) is located in the receiving cavity (111) and is interference-fitted with the inner wall of the base (11).
9. The stirring blade assembly according to claim 1, characterized in that, The main blade (10) also includes blades (15), and the number of blades (15) is a pair, with the pair of blades (15) arranged symmetrically on the outside of the base (11).
10. A food processor, characterized in that, Includes the stirring blade assembly as described in any one of claims 1-9.