Stirring structure of food processor
By incorporating a cylindrical and inverted conical portion of the cup shell into the stirring structure, and setting a discharge port and vortex guide vanes on it, the problem of insufficient flow rate of solid-liquid mixture in the stirring structure is solved, thereby improving the stirring and cell breaking efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-24
AI Technical Summary
The existing food processing appliances have limited mixing structures due to the design limitations of the baffle, resulting in insufficient flow of solid-liquid mixtures and low circulation speed, which affects the mixing and cell wall breaking efficiency.
The stirring structure includes a cylindrical part of the cup shell, with the upper end forming the cup mouth and the lower end forming the discharge port. The discharge port is circumferentially distributed, and the lower end of the inverted cone corresponds to the stirring blade. Vortex guide vanes are circumferentially distributed in the window to enhance the circulation flow of the solid-liquid mixture.
It improves the efficiency of stirring and cell wall breaking, increases the flow rate and circulation speed of solid-liquid mixtures, promotes the rapid convergence of solid-liquid mixtures to the stirring blades, and enhances the cutting and impact effects.
Smart Images

Figure CN224155551U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing appliances, specifically to a food processor stirring structure. Background Technology
[0002] Currently, some food processing appliances are equipped with stirring structures, such as soy milk makers or blenders. These stirring structures include stirring blades mounted on the upper side of the base of the container. To improve stirring and blending efficiency, some food processing appliances have a baffle on the base of the container, with the stirring blades positioned inside the baffle. For example, the Chinese utility model patent publication number CN221013008U, "A Baffle Device for a Stirring and Blending Mechanism," describes such a device. This baffle device creates complex turbulence within the cylinder of the baffle, intensifying the cutting and collision of the stirring blades with the solid material. However, in practical applications, because the inner diameter of the upper end of the baffle is smaller than the inner diameter of the lower end, it is not conducive to increasing the size of the feed opening at the upper end of the baffle. This makes it difficult for the solid-liquid mixture to be replenished into the baffle, resulting in insufficient flow of the solid-liquid mixture into the baffle. In other words, the circulation speed of the solid-liquid mixture within the container is low, so improvements are necessary. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a food processor stirring structure that is more conducive to improving the stirring and cell wall breaking efficiency.
[0004] The objective of this utility model is achieved through the following technical solution.
[0005] The food processor mixing structure disclosed in this utility model includes a base and a mixing blade. The mixing blade is disposed on the upper side of the base. The base has a cup shell, which includes a cylindrical portion. The mixing blade is disposed inside the cylindrical portion. The upper end of the cylindrical portion forms a cup opening, and the lower end of the cylindrical portion forms a discharge port. The discharge ports are distributed circumferentially. The cylindrical portion includes an inverted conical portion, the lower end of which corresponds to the mixing blade. The upper part of the inverted conical portion forms a window, and one circumferential edge of the window extends inward to form a vortex guide vane. The windows are distributed circumferentially.
[0006] Preferably, the discharge port and the window are arranged in a circumferentially offset manner.
[0007] Preferably, the vortex guide vane is integrally formed with the cylindrical portion.
[0008] Preferably, the cylindrical portion includes an upper extension portion located at the mouth of the cup, and the lower end of the upper extension portion is integrally connected to the upper end of the inverted conical portion.
[0009] Preferably, the upper extension forms an angle of 165° to 170° with the inverted conical portion.
[0010] Preferably, the cylindrical portion includes an inner eave, which is annular and located at the mouth of the cup. The outer end of the inner eave is integrally connected to the upper end of the inverted conical portion.
[0011] Preferably, the inner eaves form an angle of 90° to 100° with the inverted conical portion.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a cup shell on the base, the cup shell includes a cylindrical part, the stirring blade is set inside the cylindrical part, the upper end of the cylindrical part forms a cup mouth, the lower end of the cylindrical part forms a discharge port, the discharge ports are distributed circumferentially, the cylindrical part includes an inverted conical part, the lower end of the inverted conical part corresponds to the stirring blade, the upper part of the inverted conical part forms a window, one circumferential edge of the window extends inward to form a vortex guide plate, the windows are distributed circumferentially, making the stirring structure of the food processor of this utility model more conducive to improving the stirring and breaking efficiency. Attached Figure Description
[0013] Figure 1 This is a top-view perspective view of the stirring structure of the food processor according to the first embodiment of this utility model.
[0014] Figure 2 This is an exploded view of the mixing structure of the food processor according to the first embodiment of the present invention.
[0015] Figure 3 This is a top view schematic diagram of the stirring structure of the food processor according to the first embodiment of the present invention.
[0016] Figure 4 This is a cross-sectional view of the mixing structure of the food processor according to the first embodiment of the present invention.
[0017] Figure 5 This is a top-view perspective view of the stirring structure of the food processor according to the second embodiment of this utility model.
[0018] Figure 6 This is a cross-sectional view of the stirring structure of the food processor according to the second embodiment of the present invention.
[0019] Labeling: 1. Base plate; 2. Cup shell; 21. Cylinder; 210. Cup mouth; 2101. Discharge port; 2102. Window; 2014. Vortex guide vane; 211. Inverted cone; 212. Upper extension; 213. Inner eaves; 22. Flange; 221. Groove; 2211. Circumvention hole; 3. Stirring blade; 4. Pin; 42. Pin head; 43. Connecting rod; 9. Barrel body. Detailed Implementation
[0020] The present invention will now be further described with reference to the accompanying drawings.
[0021] The food processor stirring structure of this utility model, such as Figures 1 to 4 As shown, the device includes a base 1 and a stirring blade 3. The base 1 is the bottom of the container 9. The stirring blade 3 is located on the upper side of the base 1. A cup shell 2 is provided on the base 1. The cup shell 2 includes a cylindrical portion 21. The stirring blade 3 is located inside the cylindrical portion 21 and is coaxially arranged with the cylindrical portion 21. A cup opening 210 is formed at the upper end of the cylindrical portion 21, and a discharge port 2101 is formed at the lower end of the cylindrical portion 21. The discharge ports 2101 are circumferentially distributed, and the number of discharge ports 2101 can be four. The four discharge ports 2101 are evenly distributed circumferentially, and the discharge ports 2101 can be approximately rectangular. Figure 4 As shown, the cylindrical portion 21 includes an inverted conical portion 211. In other words, the inverted conical portion 211 has a conical cylindrical structure, and the inner diameter of the inverted conical portion 211 gradually increases from bottom to top. The lower end of the inverted conical portion 211 corresponds to the stirring blade 3, that is, the height position of the lower end of the inverted conical portion 211 relative to the base plate 1 is approximately the same as the height position of the stirring blade 3 relative to the base plate 1. Figures 1 to 4 As shown, a window 2102 is formed on the upper part of the inverted conical portion 211. A vortex guide vane 2014 extends inward from one circumferential edge of the window 2102. The windows 2102 are circumferentially distributed, and the number of windows 2102 can be set to four. In other words, the vortex guide vane 2014 is formed on one side of the window 2102 in the circumferential direction of the cup shell 2. Moreover, in order to form a vortex well in the cup shell 2, the position of the vortex guide vane 2014 relative to the window 2102 corresponds to the rotation direction of the stirring blade 3. For example, as Figure 3 As shown, the stirring blade 3 rotates counterclockwise, so the vortex guide vane 2014 is located on the tail side of the window 2102 in the counterclockwise direction. That is to say, when viewed radially from the outside of the cylinder 21 directly facing the window 2102, the vortex guide vane 2014 is located on the left side of the corresponding window 2102.
[0022] The following is a brief explanation of the working principle of the food processor's stirring structure of this utility model: Figure 1 and Figure 4As shown, when the stirring blade 3 rotates counterclockwise, it pushes the solid-liquid mixture (e.g., water and beans or fruit pulp) in the lower part of the cylinder 21 to rotate. Due to centrifugal force, the solid-liquid mixture is thrown outward from the stirring blade 3, and then discharged from the discharge port 2101. This reduces the pressure inside the cylinder 21, and the solid-liquid mixture inside the barrel 9 (outside the cylinder 21) is attracted to the cup opening 210 and window 2102. That is to say, the solid-liquid mixture flows back to the cylinder 21 through the cup opening 210 and window 2102. Inside, a solid-liquid mixture circulates. Because the stirring blade 3 rotates counter-clockwise, it drives the solid-liquid mixture to form a counter-clockwise vortex within the cylinder 21. The solid-liquid mixture entering the cylinder 21 through window 2102 is guided by the vortex guide vane 2014, making it less likely to flow to the left (observed radially from the outside of the cylinder 21 directly facing window 2102). That is, the solid-liquid mixture entering the cylinder 21 through window 2102 flows to the right (observed radially from the outside of the cylinder 21 directly facing window 2102), causing the solid-liquid mixture entering the cylinder 21 through window 2102 to follow the direction of the vortex's rotation, thus facilitating the formation of a stronger vortex. Furthermore, as... Figure 4 As shown, because the inner diameter of the inverted conical portion 211 gradually increases from bottom to top and the window 2102 is formed on the upper part of the inverted conical portion 211, the solid-liquid mixture that has just entered the cylinder 21 through the window 2102 immediately flows inward and downward along the inner wall of the inverted conical portion 211, so that the solid-liquid mixture effectively and quickly converges to the stirring blade 3. The solid-liquid mixture fluid rapidly impacts the outer end of the stirring blade 3, thereby enhancing the cutting and impacting effect on the solids in the solid-liquid mixture. Afterward, the solid-liquid mixture is discharged out of the cylinder 21 through the discharge port 2101. Since the solid-liquid mixture flows roughly from top to bottom inside the cylinder 21, as... Figure 4 As shown, the discharge port 2101 is positioned slightly lower than the stirring blade 3. Since the inner diameter of the inverted conical portion 211 gradually increases from bottom to top, compared to existing technologies, it is easier to set a larger inner diameter for the cup opening 210. This makes it easier for the solid-liquid mixture located on the upper side of the cup shell 2 to be drawn into the cylinder 21. The addition of a window 2102 allows the solid-liquid mixture to circulate and replenish into the cylinder 21 through the window 2102. Combined with the guiding effect of the inverted conical portion 211 and the vortex guide vane 2014 on the vortex, this increases the flow rate of the solid-liquid mixture entering the cylinder 21, accelerates the circulation of the solid-liquid mixture within the barrel 9, and thus further improves the stirring and wall-breaking efficiency.
[0023] Furthermore, such as Figure 1 and Figure 3As shown, the discharge port 2101 and the window 2102 are arranged in a circumferentially staggered manner. That is to say, in the circumferential direction of the cylinder 21, the discharge port 2101 and the window 2102 are arranged in a staggered manner to avoid the part of the cylinder 21 located between the upper end of the discharge port 2101 and the lower end of the window 2102 being too narrow due to the discharge port 2101 being aligned with the window 2102. Relatively speaking, the circumferentially staggered arrangement of the discharge port 2101 and the window 2102 is conducive to increasing the structural strength of the cylinder 21.
[0024] Furthermore, the vortex guide vane 2014 is integrally formed with the cylindrical portion 21, which helps to increase the connection strength between the vortex guide vane 2014 and the cylindrical portion 21, and avoids deformation of the cylindrical portion 21 caused by welding the vortex guide vane 2014 to the cylindrical portion 21. Specifically, three sides of a roughly rectangular window 2102 can be cut into the wall of the cylindrical portion 21, and then the wall within the area of the window 2102 is bent inward to form the vortex guide vane 2014.
[0025] In some embodiments, such as Figure 4 As shown, the cylindrical portion 21 includes an upper extension 212, which is located at the cup opening 210. The lower end of the upper extension 212 is integrally connected to the upper end of the inverted conical portion 211. Thus, the upper extension 212 is formed by extending upward from the upper end of the inverted conical portion 211. Since the inverted conical portion 211 is an inverted conical structure, the upper extension 212 is an inward-curving structure relative to the inverted conical portion 211. This makes it difficult for the solid-liquid mixture in the upper part of the cylindrical portion 21 to diffuse outward and flow back through the cup opening 210. Conversely, this makes it easier for the solid-liquid mixture in the upper part of the cylindrical portion 21 to be drawn by the vortex to the stirring blade 3 at the lower end of the cylindrical portion 21. The upper extension 212 forms an angle of 165° to 170° with the inverted conical portion 211 (that is to say...). Figure 4 The angle dimension “X” in the middle makes the inward amplitude of the upper extension 212 smaller, so the upper extension 212 has a smaller negative impact on the solid-liquid mixture entering the cylinder 21 through the cup mouth 210.
[0026] In some embodiments, such as Figure 5 and Figure 6 As shown, the cylindrical portion 21 includes an inner eave 213, which is annular and located at the cup opening 210. The outer end of the inner eave 213 is integrally connected to the upper end of the inverted conical portion 211, meaning that the inner eave 213 extends inward towards the inside of the cylindrical portion 21. Therefore, the inner eave 213 has an inward-curving structure relative to the inverted conical portion 211, making it difficult for the solid-liquid mixture in the upper part of the cylindrical portion 21 to flow out through the cup opening 210. The inner eave 213 forms an angle of 90° to 100° with the inverted conical portion 211 (i.e.,...). Figure 6The angle dimension “Y” in the middle is larger than that of the inverted cone 211, so the solid-liquid mixture in the upper part of the cylinder 21 is less likely to diffuse outward through the cup mouth 210.
[0027] like Figure 6 As shown, the upper inner diameter of the inner eaves 213 (that is, the inner diameter of the cup opening 210) is larger than the lower inner diameter of the inverted conical portion 211. Therefore, the solid-liquid mixture on the upper side of the cylinder 21 can more easily pass through the cup opening 210 into the cylinder 21. Furthermore, as... Figure 5 and Figure 6 As shown, the window 2102 can extend upward to the inner eaves 213, which is beneficial for obtaining sufficient solid-liquid mixture replenishment inside the cylinder 21.
[0028] like Figure 1 and Figure 2 As shown, the cup shell 2 includes a flange 22, which is integrally connected to the lower end of the cylindrical portion 21, as shown. Figure 4 As shown, the flange 22 rests against the base plate 1, thus the base plate 1 closes the lower end of the cylindrical portion 21. The base plate 1 acts as the bottom structure of the cup shell 2, as shown. Figure 1 and Figure 2 As shown, the chassis 1 is provided with a fastener 4, which has a connecting rod 43 and a head 42. A neck 41 is formed between the connecting rod 43 and the head 42. A groove 221 is formed on the flange 22. One end of the groove 221 has a clearance hole 2211 for avoiding the head 42. The clearance hole 2211 is connected to the groove 221. The neck is adapted to fit in the groove 221. The edge of the groove 221 is sandwiched between the head 42 and the chassis 1. The grooves 221 are evenly distributed around the axis of the flange 22. Thus, the cup shell 2 is easy to disassemble and easy for the user to clean. The connection structure between the groove 221 and the fastener 4 and the connection structure between the fastener 4 and the chassis 1 can be referred to "A Turbulence Device for a Stirring and Breaking Mechanism" in Chinese Utility Model Patent Publication No. CN221013008U.
Claims
1. A food processor mixing structure, characterized in that: The device includes a chassis (1) and a stirring blade (3), wherein the stirring blade (3) is disposed on the upper side of the chassis (1). The device is characterized in that: a cup shell (2) is provided on the chassis (1), the cup shell (2) includes a cylindrical part (21), the stirring blade (3) is disposed inside the cylindrical part (21), a cup mouth (210) is formed at the upper end of the cylindrical part (21), a discharge port (2101) is formed at the lower end of the cylindrical part (21), the discharge port (2101) is circumferentially distributed, the cylindrical part (21) includes an inverted conical part (211), the lower end of the inverted conical part (211) is positioned corresponding to the stirring blade (3), a window (2102) is formed at the upper part of the inverted conical part (211), a vortex guide vane (2014) is formed on one circumferential edge of the window (2102), and the window (2102) is circumferentially distributed.
2. The food processor mixing structure according to claim 1, characterized in that: The discharge port (2101) and the window (2102) are arranged in a circumferentially staggered manner.
3. The food processor mixing structure according to claim 2, characterized in that: The vortex guide vane (2014) is integrated with the cylindrical part (21).
4. The food processor mixing structure according to any one of claims 1 to 3, characterized in that: The cylindrical portion (21) includes an upper extension (212), which is located at the mouth of the cup (210). The lower end of the upper extension (212) is integrally connected to the upper end of the inverted conical portion (211).
5. The food processor mixing structure according to claim 4, characterized in that: The upper extension (212) forms an angle of 165° to 170° with the inverted conical portion (211).
6. The food processor mixing structure according to any one of claims 1 to 3, characterized in that: The cylindrical part (21) includes an inner eave (213), which is annular and located at the mouth of the cup (210). The outer end of the inner eave (213) is integrally connected to the upper end of the inverted conical part (211).
7. The food processor mixing structure according to claim 6, characterized in that: The inner eaves (213) forms an angle of 90° to 100° with the inverted conical portion (211).
Citation Information
Patent Citations
A flow-disturbing device for a stirring and wall-breaking mechanism
CN221013008U