Stirring device and smoothie machine

Abstract

A stirring cup of the stirring device comprises a plurality of inner side walls which are sequentially connected in the circumferential direction of the stirring cup, the adjacent inner side walls are connected through arc surfaces, and the radian of the arc surfaces is gradually increased from the cup bottom end of the stirring cup to the cup opening end of the stirring cup; the cup opening end of the stirring cup is similar to a circle, and the cup bottom end of the stirring cup is similar to a polygon. When food materials are stirred, the food materials are stirred at a low speed in the initial time period, ice blocks and other food materials only impact in the polygonal inner side wall area at the bottom end of the cup to form a strong impact vortex, and large ice blocks can be effectively and rapidly smashed preferentially. And stirring at a high speed in a later period of time, so that the ice block particles form a rapid and uniform overturning vortex towards the quasi-circular inner wall surface of the cup opening end along the inner side wall, and the crushed ice blocks are rapidly separated from low-speed vortex dead angles possibly existing in the quasi-polygonal area and are uniformly stirred. Different targeted stirring vortexes are generated in a specific cup shape at different rotating speeds, so that the aim of efficiently, quickly and uniformly stirring is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring devices, in particular to a stirring device and an ice smoothie machine. Background Art

[0002] When the existing stirring device is stirring the food, the shape of the stirring cup of the stirring device is limited, which causes the food to easily accumulate and not be fully stirred. For example, when a smoothie machine makes smoothies, the accumulation of food causes the smoothies to contain large ice cubes, which affects the taste. The Chinese utility model patent with announcement number CN101952020B discloses a blender container, whose blending cup is composed of a large arc wall and two basic straight wall structures to form a triangular shape. The blending effect is relatively good, but the blending time is relatively long. Most other traditional blending cups are straight round or straight square, and the blending time of the straight round blending cup is relatively longer. The straight square blending cup has a fast mixing and crushing speed, but for the smoothie machine, the particle size of the crushed smoothie is still uneven, which greatly affects the taste. The method of extending the mixing time or manually adjusting the position of the ice cubes at the corners will affect the efficiency of smoothie production. Utility Model Content

[0003] The purpose of the embodiments of the utility model is to provide a stirring device and a smoothie machine, so as to solve the problem that the stirring device has a poor stirring effect on food.

[0004] The embodiment of the utility model adopts the following technical solution: the stirring device includes a stirring cup, a motor, a stirring blade and a controller;

[0005] The blending cup comprises a plurality of inner side walls sequentially arranged and connected along the circumference of the blending cup, adjacent inner side walls are connected by arc surfaces, and the curvature of the arc surface gradually increases from the bottom of the blending cup to the mouth of the blending cup;

[0006] The stirring blade is arranged in the stirring cup near the bottom of the cup, and the stirring blade is connected to the motor through a coupling device. The motor is electrically connected to the controller and driven by the controller to drive the stirring blade to rotate at different speeds in different time periods.

[0007] The adjacent inner side walls of the mixing cup are connected by arc surfaces, and the arc surface gradually increases from the bottom end of the mixing cup to the mouth end of the mixing cup, so that the mouth end of the mixing cup is quasi-circular, and the bottom end of the mixing cup is quasi-polygonal; when mixing ingredients such as ice cubes, the ice cubes can continuously collide with the inner side walls of the polygon near the bottom of the cup to form a strong collision vortex, which can quickly break up large ice cubes. The broken ice particles will impact along the inner side wall toward the mouth of the cup under the cutting and stirring action of the mixing knife, and quickly form a uniform vortex near the mouth of the cup in the quasi-circular shape, so that the initially broken ice cubes are evenly stirred again, avoiding the initially broken ice particles hiding in the corners of the bottom of the cup and not being effectively stirred. The smoothie particles produced by the above-mentioned mixing device are more uniform, taste better, and are more efficient.

[0008] In some embodiments, the blending cup includes four inner walls, and the four inner walls and / or the arc surface are respectively provided with spoiler ribs extending from the top of the inner wall to the bottom of the inner wall, and the spoiler ribs protrude from the wall surface of the inner wall toward the center of the blending cup.

[0009] The spoiler ribs play a guiding role. On the one hand, they can enable the smoothie on the upper part of the blender cup to flow downward along the spoiler ribs better without hanging on the inner wall; on the other hand, the flow-facing surface of the spoiler ribs can also guide the smoothie to the center of the blender cup to prevent the smoothie from sliding along the inner wall of the blender cup and not being evenly stirred.

[0010] In some embodiments, the spoiler ribs gradually disappear from the inner side wall and / or the top of the arc surface to the bottom of the inner side wall, and the bottom end of the spoiler ribs is located above the stirring blade, so that the smoothie on the upper part of the stirring cup can be better guided to the bottom of the cup and to the stirring blade, so that the smoothie can be further stirred and cut by the stirring blade to form a more delicate smoothie.

[0011] In some embodiments, the angle between the frontal surface of the spoiler rib and the wall surface of the inner wall where it is located is greater than or equal to 110°, so that the food stirred by the frontal surface can move along the frontal surface toward the center of the stirring cup, thereby preventing the smoothie from sliding only along the inner wall of the stirring cup and not being stirred evenly.

[0012] In some embodiments, the motor drives the blending blade to rotate at a first speed in a first time period so that the food in the blending cup can form a first shape of vortex in the lower half of the blending cup, and drives the blending blade to rotate at a second speed in a second time period later than the first time period so that the food in the blending cup can form a second shape of vortex in the upper half of the blending cup, wherein the first speed is lower than the second speed.

[0013] In the first time period after the motor is started, the large ice cubes are initially stirred and cut at a relatively low speed. Since the ice cube particles formed by the initial cutting are also relatively large, the larger ice cube particles will not be stuck at the corners of the bottom of the cup and will not be subsequently stirred and cut. In the second time period after the first time period, the stirring blade rotates at a second speed higher than the first speed, so that the smoothie can impact upward along the inner wall to form a uniform vortex, thereby quickly obtaining a uniformly stirred smoothie, the smoothie particles are more uniform, and the taste is better.

[0014] In some embodiments, the first rotation speed ranges from 2500 rpm to 7500 rpm, and the second rotation speed is greater than 8000 rpm. The second rotation speed is relatively high, which can improve the efficiency of making smoothies.

[0015] In some embodiments, the stirring blade comprises a blade body and a blade shaft, one end of the blade shaft is connected to the motor through a coupling device, the blade body comprises a horizontal portion, a first blade and a second blade, the horizontal portion is connected to the other end of the blade shaft, and the first blade and the second blade each have a first cutting portion and a second cutting portion;

[0016] One end of the two first cutting parts is respectively connected to the opposite two ends of the horizontal part, one end of the two second cutting parts is respectively connected to the other end of the two first cutting parts, the two first cutting parts are respectively bent upward by one end connected to the horizontal part, and the two second cutting parts are respectively bent upward by one end connected to the first cutting part.

[0017] The mixing knife is set in the form of a two-piece blade, and the blade is designed as a two-section upwardly bent structure, so that ice cubes and other ingredients can be cut at different angles, thereby improving the cutting effect.

[0018] In some embodiments, the angle between the lower cutting surface of the second cutting portion and the lower cutting surface of the horizontal portion is 45° to 90°, and the angle between the lower cutting surface of the first cutting portion and the lower cutting surface of the horizontal portion is 0° to 10°. The bending degree of the second cutting portion near the inner side wall is designed to be greater than the bending degree of the first cutting portion, so as to better cut and stir the large ice cubes near the inner side wall.

[0019] In some embodiments, the first blade and the second blade are arranged 180° rotationally symmetrically around the axis of the blade shaft. The rotationally symmetrical design of the first blade and the second blade can achieve more uniform cutting and mixing of ingredients such as ice cubes, and avoid shaking of the mixing cup and loud noise during mixing.

[0020] The utility model also provides an ice smoothie machine, comprising the stirring device as described in any one of the above embodiments.

[0021] The particle size of the smoothie produced by the smoothie machine using the stirring device is more uniform, the smoothie tastes better, and the smoothie production efficiency is also improved.

[0022] The beneficial effects of the embodiments of the utility model are:

[0023] By connecting the adjacent inner side walls of the mixing cup through an arc surface, and the curvature of the arc surface gradually increases from the bottom of the mixing cup to the mouth of the mixing cup, the mouth of the mixing cup is quasi-circular, and the bottom of the mixing cup is more polygonal, so that when mixing ingredients such as ice cubes, the ice cubes can continuously collide with the polygonal inner side wall near the bottom of the cup to form a strong collision vortex, which can quickly break up large ice cubes. The broken ice particles will impact along the inner side wall toward the mouth of the cup under the cutting and stirring action of the mixing knife, and quickly form a uniform vortex at the quasi-circular mouth of the cup, so that the initially broken ice cubes are evenly stirred again, avoiding the initially broken ice particles hiding in the corners of the bottom of the cup and not being effectively stirred. The smoothie particles produced by the above-mentioned mixing device are more uniform, taste better, and are more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 This is a schematic diagram of the structure of the stirring device of the utility model;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the stirring cup of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the stirring device of the utility model from another angle;

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of the stirring device of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the stirring knife of the utility model;

[0030] Figure 6 This is a schematic structural diagram of the stirring knife of the utility model from another angle;

[0031] Figure 7 It is a structural schematic diagram of the knife body of the utility model;

[0032] Figure 8This is a schematic diagram of the cross-sectional structure of the stirring cup and stirring blade of the utility model;

[0033] Fig. 9 This is a schematic structural diagram of the stirring cup of the utility model from another angle;

[0034] Fig.10 For this utility model Figure 2 Schematic diagram of the cross-sectional structure of H1-H1;

[0035] Fig.11 For this utility model Figure 2 Schematic diagram of the cross-sectional structure of H2-H2.

[0036] Figure numerals: 1, stirring cup; 101, inner wall; 102, arc surface; 103, spoiler rib; 104, handle; 2, motor; 3, stirring knife; 301, knife shaft; 302, horizontal part; 303, first blade; 304, second blade; 305, first cutting part; 306, second cutting part; 4, controller; 5, cup cover; 6, sealing ring; 7, upper coupler; 8, lower coupler. DETAILED DESCRIPTION

[0037] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0038] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of the embodiments. Other modifications within the scope and spirit of the present application will occur to those skilled in the art.

[0039] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0040] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0041] It should also be understood that although the present application has been described with reference to some specific examples, those skilled in the art will be able to readily implement many other equivalent forms of the present application.

[0042] The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

[0043] Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present application, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that obscure the present application. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any suitable detailed structure.

[0044] This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present application.

[0045] In order to solve the problems in the background technology, the utility model provides a stirring device, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the stirring device includes a stirring cup 1, a motor 2, a stirring blade 3 and a controller 4.

[0046] The mixing cup 1 has a mixing space, combined with Figure 3 , Fig.10 and Fig.11 , the inner wall of the stirring space includes an inner bottom wall and an inner side wall 101. Among them, the inner side wall 101 includes a plurality of inner side walls 101, and the plurality of inner side walls 101 are sequentially arranged and connected along the circumference of the stirring space. Two adjacent inner side walls 101 are connected by an arc surface 102, wherein the curvature of the arc surface 102 gradually increases from the bottom end of the stirring cup 1 to the mouth end of the stirring cup 1, that is, the inner diameter of the stirring cup 1 gradually increases from its bottom end to the mouth end, so that the mouth end of the stirring cup is quasi-circular, and the bottom end of the stirring cup is quasi-polygonal. That is, the cross-section of the cup body part of the stirring cup 1 close to the bottom of the cup is polygonal or close to a polygon, while the cross-section of the cup body part close to the mouth of the cup is close to a circle; for example, the quasi-circular shape can be a shape formed by continuous arc surfaces such as circles, ellipses, and runway shapes that are smoothly connected in sequence. Combined with Fig. 9, the stirring cup 1 is in the form of a structure with a small bottom and a large top opening. The adjacent inner side walls 101 of the stirring cup 1 are connected by arc surfaces 102, and the arc of the arc surface 102 gradually increases from the bottom of the stirring cup 1 to the mouth of the stirring cup 1, so that the mouth of the stirring cup 1 is quasi-circular, and the bottom of the stirring cup 1 is more polygonal, and then when stirring ingredients such as ice cubes, the ice cubes can continuously collide with the polygonal inner side wall 101 at a position close to the bottom of the cup to form a strong collision vortex, which can quickly break the large ice cubes. At this time, the initially broken ice particles are still relatively large and will not be stuck in the corners of the stirring cup 1. The initially broken ice particles will impact along the inner side wall 101 toward the cup mouth under the cutting and stirring action of the stirring blade 3, and quickly form a uniform vortex at the quasi-circular position close to the cup mouth, so that the initially broken ice cubes are evenly stirred again, and it is avoided that the initially broken ice particles are hidden in the corners of the bottom of the cup and cannot be effectively stirred.

[0047] like Figure 1 and Figure 2 As shown, a cup cover 5 for sealing the cup mouth can be provided at the cup mouth, and the cup cover 5 can be sealedly connected to the cup mouth through a sealing ring 6 to prevent the food from rushing out of the mixing cup 1 from the cup mouth during mixing.

[0048] In addition, continue to combine Figure 2 A handle 104 may also be provided on the outer wall surface of the blending cup 1 to facilitate gripping and taking and placing the blending cup 1 .

[0049] Combination Figure 2 and Figure 3 , the stirring blade 3 is arranged near the bottom of the stirring cup 1, the stirring blade 3 is connected to the motor 2 through a coupling device, the motor 2 is electrically connected to the controller 4, and driven by the controller 4, the stirring blade 3 is driven to rotate at different speeds in a time-sharing manner. Exemplarily, the stirring device is used to cut and stir ice cubes to make smoothies. When the ice cubes are first put into the stirring cup 1, the ice cubes are relatively large, and the motor 2 can drive the stirring blade 3 to rotate at a lower speed in the initial period of time to cut and stir the ice cubes, so that the ice cubes form a strong collision vortex in the area of ​​the bottom of the cup close to the polygon, and the large ice cubes can be quickly broken. When the large ice cubes are broken, in the next period of time, the stirring blade 3 can be driven to rotate at a higher speed, so that the ice cube particles impact the large arc part above the bottom of the cup near the cup mouth under the high-speed vortex, forming a fast and uniform stirring vortex, so that the initially broken ice cubes are evenly stirred again, so as to avoid the broken ice particles hiding in the corners of the bottom of the polygonal cup and not being effectively stirred to form ice particles of uneven size.

[0050] The embodiment of the utility model connects the adjacent inner side walls 101 of the mixing cup 1 through the arc surface 102, and the arc of the arc surface 102 gradually increases from the bottom of the mixing cup 1 to the mouth of the mixing cup 1, so that the mouth of the mixing cup 1 is quasi-circular, and the bottom of the mixing cup 1 is more polygonal, so that when mixing ingredients such as ice cubes, the ice cubes can continuously collide with the polygonal inner side wall 101 near the bottom of the cup to form a strong collision vortex, which can quickly break the large ice cubes. The broken ice particles will impact the cup mouth position along the inner side wall 101 under the cutting and stirring action of the mixing blade 3, and quickly form a uniform vortex at the quasi-circular cup mouth position, so that the initially broken ice cubes are evenly stirred again, and the initially broken ice particles are prevented from hiding in the corners of the bottom of the cup and cannot be effectively stirred. That is, the crushed ice cubes are stirred at a high speed in the quasi-circular cup mouth area, which is basically not affected by the bending angle between the two adjacent inner side walls 101, and the ice cubes will not stay at the corners. The frequency of the stirring blade 3 cutting each small ice cube is basically the same, so the crushed smoothie particles are relatively uniform. The smoothie particles produced by the stirring device are more uniform, the taste is better, and the efficiency is higher.

[0051] In some embodiments, in combination Figure 3 The mixing cup 1 includes four inner side walls 101, and spoiler ribs 103 extending from the top of the inner side wall 101 and / or the arc surface 102 to the bottom of the inner side wall 101 are respectively provided on the four inner side walls 101, and the spoiler ribs 103 are convex from the wall surface of the inner side wall 101 and / or the arc surface 102 to the center of the mixing cup 1. For example, one spoiler rib 103 can be provided on each of the four inner side walls 101, or more than two spoiler ribs 103 can be provided according to actual needs, and the specific number is not limited. The spoiler rib 103 can extend from the top of the inner side wall 101 along the inner side wall 101 in a straight line to the bottom of the inner side wall 101, or it can extend from the top of the inner side wall 101 along the inner side wall 101 in an oblique line to the bottom of the inner side wall 101. Of course, it can be understood that the spoiler rib 103 can also be provided in other arrangements, which is only used as an example and does not constitute a limitation on the scope of protection of the claims.

[0052] The spoiler ribs 103 play a guiding role. On the one hand, they can make the smoothie on the upper part of the blending cup 1 flow downward along the spoiler ribs 103 better without hanging on the inner wall 101; on the other hand, the frontal surface of the spoiler ribs 103 can also guide the smoothie to the center of the blending cup 1 to avoid the smoothie only sliding along the inner wall 101 of the blending cup 1 and not being evenly stirred.

[0053] In some embodiments, in combination Figure 8The spoiler rib 103 gradually disappears from the top of the inner wall 101 and / or the arc surface 102 to the bottom of the inner wall 101, that is, the upper part of the spoiler rib 103 is wider, and the bottom end of the spoiler rib 103 is narrower until a pointed bottom end is formed, so that the smoothie on the upper part of the blending cup 1 can be better guided to the bottom of the cup. The bottom end of the spoiler rib 103 is located above the blending blade 3, so that the smoothie can be further stirred and cut by the blending blade 3 to form a more delicate smoothie.

[0054] In addition, the surface of the spoiler rib 103 may be rounded to make the surface of the spoiler rib 103 a smooth curved surface, thereby preventing the surface of the spoiler rib 103 from being too sharp and causing scratches when the blender cup 1 is manually cleaned.

[0055] In some embodiments, the angle between the upstream surface of the spoiler rib 103 and the wall surface of the inner side wall 101 where it is located is the upstream angle a, and the upstream angle a is greater than or equal to 110°, so that the food stirred by the upstream surface can move along the upstream surface toward the center of the blending cup 1, and prevent the smoothie from sliding only along the inner side wall 101 of the blending cup 1 and not being stirred evenly. Of course, it is understandable that the angle between the upstream surface of the spoiler rib 103 and the wall surface of the inner side wall 101 where it is located can also be set to other angles, based on the fact that the upstream surface can guide the food to the center of the blending cup 1. The size of the upstream angle a can be set according to actual production needs.

[0056] In some embodiments, the motor 2 drives the stirring blade 3 to rotate at a first speed in a first time period so that the food in the stirring cup 1 can form a first-form vortex in the lower half of the stirring cup 1, and rotates at a second speed in a second time period later than the first time period so that the food in the stirring cup 1 can form a second-form vortex in the upper half of the stirring cup 1, wherein the first speed is lower than the second speed. That is, at the beginning of stirring, the ice cubes can form a first-form vortex along the polygonal shape at the bottom of the stirring cup 1. As mentioned above, when the ice cubes are first put into the stirring cup 1, the ice cubes are relatively large. The motor 2 can drive the stirring blade 3 to rotate at a lower speed in the first time period to cut and stir the ice cubes. Because the speed of the motor 2 is relatively low, the ice cubes form a strong collision vortex in the bottom area of ​​the cup close to the polygon under the action of a small centrifugal force, which can quickly break up large pieces of ice. The first speed can be a fixed speed or a variable speed, but the first speed is always lower than the second speed. After the large ice cubes are broken, within a period of time thereafter, that is, within a second period of time, the motor 2 can drive the stirring blade 3 to rotate at a second speed higher than the first speed, so that the ice cube particles form a high-speed vortex under the action of a larger centrifugal force, and impact the large arc portion above the bottom of the cup near the cup mouth, forming a fast and uniform stirring vortex along the circular inner wall of the cup, so that the initially broken ice cubes are evenly stirred again, so as to avoid the broken ice particles hiding in the corners of the polygonal cup bottom and cannot be effectively stirred to form ice particles of uneven sizes.

[0057] In the first time period after the motor 2 is started, the large ice cubes are initially stirred and cut at a relatively low speed. Since the ice cube particles formed by the initial cutting are also relatively large, the larger ice cube particles will not be stuck at the corners of the bottom of the cup and will not be subsequently stirred and cut. In the second time period after the first time period, the stirring blade 3 rotates at a second speed higher than the first speed, so that the smoothie can impact upward along the inner wall 101 to form a uniform vortex, thereby quickly obtaining a uniformly stirred smoothie with more uniform smoothie particles and better taste.

[0058] In some embodiments, the first speed ranges from 2500 rpm to 7500 rpm; the second speed is greater than 8000 rpm. The second speed is higher than the first speed, and the high-speed rotation of the mixing blade 3 in the second time period can improve the efficiency of smoothie making and better meet user needs.

[0059] In some embodiments, in combination Figure 5 , Figure 6 and Figure 7The mixing blade 3 includes a blade body and a blade shaft 301. One end of the blade shaft 301 is connected to the motor 2 through a coupling device. The blade body includes a horizontal portion 302, a first blade 303, and a second blade 304. The horizontal portion 302 is connected to the blade shaft 301. Specifically, the middle position of the horizontal portion 302 is connected to the other end of the blade shaft 301. For example, in combination Figure 4 The horizontal portion 302 can be connected to the upper end of the knife shaft 301 through the upper coupler 7, and the lower end of the knife shaft 301 can be connected to the motor 2 through the lower coupler 8.

[0060] The first blade 303 and the second blade 304 both have a first cutting portion 305 and a second cutting portion 306. The side walls of the first cutting portion 305 and the second cutting portion 306 may be provided with blades, and food materials such as ice cubes are cut by the blades.

[0061] One end of the two first cutting parts 305 is connected to the opposite ends of the horizontal part 302, and one end of the two second cutting parts 306 is connected to the other end of the two first cutting parts 305. Specifically, one end of the first cutting part 305 of the first blade 303 is connected to one end of the horizontal part 302, and one end of the first cutting part 305 of the second blade 304 is connected to the other end of the horizontal part 302. One end of the second cutting part 306 of the first blade 303 is connected to the other end of the first cutting part 305 of the first blade 303, and one end of the second cutting part 306 of the second blade 304 is connected to the other end of the first cutting part 305 of the second blade 304. The other end of the second cutting part 306 is a free end. The first cutting part 305 is bent upward from one end connected to the horizontal part 302, and a first bending line a1 is formed at the bending point, and the second cutting part 306 is bent upward from one end connected to the first cutting part 305, and a second bending line a2 is formed at the bending point. The closest distance from the point of the second bending line a2 away from the inner side wall 101 to the cup wall is L2, 5mm≤L2≤20mm. The second bending line a2 has an angle C2 with one side wall of the first cutting portion 305. The angle between the first bending line a1 and one side wall of the first cutting portion 305 is C4, 40°≤C4≤90°, and the closest distance from the point of the first bending line away from the inner side wall 101 to the inner side wall 101 is L2, L2>L1.

[0062] The stirring blade 3 is configured as a two-piece blade, and the blade is designed as a two-stage upwardly bent structure, so that food materials such as ice cubes can be cut at different angles, thereby improving the cutting effect.

[0063] In some embodiments, in combination Figure 6, the angle between the lower blade surface of the second cutting portion 306 and the lower blade surface of the horizontal portion 302 is C1, and C1 is 45° to 90°. The angle between the lower blade surface of the first cutting portion 305 and the lower blade surface of the horizontal portion 302 is C3, and C3 is 0° to 10°. The bending degree of the second cutting portion 306 near the inner side wall 101 is designed to be greater than the bending degree of the first cutting portion 305, so as to efficiently cut and flip and stir food such as ice cubes at a specific angle. In particular, large-particle ice cubes near the inner side wall 101 can be better cut and stirred.

[0064] In some embodiments, in combination Figure 5 and Figure 7 The first blade 303 and the second blade 304 are arranged 180° rotationally symmetrically around the axial direction of the blade shaft 301. The rotationally symmetrical design of the first blade 303 and the second blade 304 can achieve more uniform cutting and stirring of ingredients such as ice cubes, and avoid shaking of the stirring cup 1 and making loud noises during the stirring process.

[0065] The utility model also provides a smoothie machine, comprising a stirring device as described in any one of the above embodiments. The smoothie machine using the stirring device has more uniform particle size and better taste. Moreover, the efficiency of smoothie production is also improved.

[0066] The above describes in detail a number of embodiments of the present invention, but the present invention is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications to the embodiments based on the concept of the present invention, and these variations and modifications should all fall within the scope of protection claimed by the present invention.

Claims

1. A stirring device, comprising a stirring cup (1), a motor (2), a stirring blade (3) and a controller (4), characterized in that: The stirring cup (1) comprises a plurality of inner side walls (101) arranged and connected in sequence along the circumference of the stirring cup (1), adjacent inner side walls (101) are connected via arc surfaces (102), and the curvature of the arc surfaces (102) gradually increases from the bottom end of the stirring cup (1) to the mouth end of the stirring cup (1), so that the mouth end of the stirring cup (1) is quasi-circular, and the bottom end of the stirring cup (1) is quasi-polygonal; The stirring blade (3) is arranged in the stirring cup (1) near the bottom of the cup, and the stirring blade (3) is connected to the motor (2) via a coupling device. The motor (2) is electrically connected to the controller (4) and driven by the controller (4) to drive the stirring blade (3) to rotate at different speeds in a time-sharing manner.

2. The stirring device according to claim 1, characterized in that: The stirring cup (1) comprises four inner side walls (101), and spoiler ribs (103) extending from the top of the inner side wall (101) to the bottom of the inner side wall (101) are respectively arranged on the four inner side walls (101) and / or the arc surface (102), and the spoiler ribs (103) protrude from the wall surface of the inner side wall (101) toward the center of the stirring cup (1).

3. The stirring device according to claim 2, characterized in that: The spoiler rib (103) gradually disappears from the top of the inner wall (101) and / or the arc surface (102) to the bottom of the inner wall (101), and the bottom end of the spoiler rib (103) is located above the stirring blade (3).

4. The stirring device according to claim 2, characterized in that: The angle between the frontal surface of the spoiler rib (103) and the wall surface of the inner wall (101) on which it is located is greater than or equal to 110°, so that the food stirred by the frontal surface can move along the frontal surface toward the center of the stirring cup (1).

5. The stirring device according to claim 1, characterized in that: The motor (2) drives the stirring blade (3) to rotate at a first speed in a first time period so that the food in the stirring cup (1) can form a vortex of a first form in the lower half of the stirring cup (1), and drives the stirring blade (3) to rotate at a second speed in a second time period later than the first time period so that the food in the stirring cup (1) can form a vortex of a second form in the upper half of the stirring cup (1), wherein the first speed is lower than the second speed.

6. The stirring device according to claim 5, characterized in that: The first rotational speed ranges from 2500 rpm to 7500 rpm; the second rotational speed is greater than 8000 rpm.

7. The stirring device according to claim 1, characterized in that: The stirring blade (3) comprises a blade body and a blade shaft (301); one end of the blade shaft (301) is connected to the motor (2) via a coupling device; the blade body comprises a horizontal portion (302), a first blade (303) and a second blade (304); the horizontal portion (302) is connected to the other end of the blade shaft (301); the first blade (303) and the second blade (304) both have a first cutting portion (305) and a second cutting portion (306); One end of the two first cutting parts (305) is respectively connected to the opposite two ends of the horizontal part (302), and one end of the two second cutting parts (306) is respectively connected to the other end of the two first cutting parts (305). The two first cutting parts (305) are respectively bent upward from one end connected to the horizontal part (302), and the two second cutting parts (306) are respectively bent upward from one end connected to the first cutting part (305).

8. The stirring device according to claim 7, characterized in that: The included angle between the lower cutting surface of the second cutting portion (306) and the lower cutting surface of the horizontal portion (302) is 45° to 90°, and the included angle between the lower cutting surface of the first cutting portion and the lower cutting surface of the horizontal portion (302) is 0° to 10°.

9. The stirring device according to claim 7, characterized in that: The first blade (303) and the second blade (304) are arranged 180° rotationally symmetrically around the axial direction of the blade axis (301).

10. A smoothie machine, characterized in that: The stirring device comprises a stirring device as claimed in any one of claims 1 to 9.

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