CN114680682A - Choked flow mechanism and cooking machine thereof - Google Patents

Abstract

The application discloses choked flow mechanism, arrange subassembly and cooking machine thereof, this choked flow mechanism includes first mount, blade, and first mount is connected to the blade, and has at least first choked flow face for block around the rotatory fluid of agitator axle center. The vanes are impacted by the fluid, prevent the rotation of the fluid, reduce the flow speed of the fluid, and simultaneously follow the rotation of the fluid due to the impact of the fluid. This food processer's choked flow mechanism cooperates with the blade of grinding jointly, and when the blade was rotatory, the fluid was driven rotatoryly, and the velocity of flow reduces after the fluid met choked flow mechanism, has increased the relative velocity of motion of fluid with the blade and then has improved contact frequency, can effectively promote the grinding effect under lower grinding speed.

Description

Choked flow mechanism and cooking machine thereof

Technical Field

The application relates to the technical field of household appliances, in particular to a flow blocking mechanism, a cooking assembly and a cooking machine thereof.

Background

At present, the mainstream food processor (such as a wall breaking machine) generally adopts the grinding mode of blade, and this kind of mode can reach better grinding performance under high rotational speed generally. When the grinder runs, due to the fact that the blades rotate at a high speed, beating noise caused by cavitation, beating, vortex systems and the like is generated, generally more than 75dB, great influence is generated on living comfort and health of people, and the problem of low machining efficiency exists in the grinder adopting other grinding modes to reduce noise.

Disclosure of Invention

The technical problem that this application mainly solved provides a choked flow mechanism, arranges subassembly and cooking machine thereof, has higher machining efficiency and lower noise.

In order to solve the technical problem, the application adopts a technical scheme that: a flow blocking mechanism of a food processor comprises a first fixing frame; the blade is connected with the first fixing frame and at least provided with a first flow blocking surface for blocking the fluid rotating around the shaft center of the stirrer and simultaneously driven to rotate along with the fluid by the impact of the fluid.

The first fixing frame comprises a ring piece, the ring piece is provided with a through hole and sleeved on a rotating shaft of the stirrer through the through hole, and the ring piece can rotate corresponding to the rotating shaft; the number of the blades is a plurality, the blades take the ring piece as the center, one end of each blade is connected with the ring piece, and the other end of each blade extends and is distributed in a radial shape far away from the center.

The blade comprises a first blade part and a second blade part, one end of the second blade part is connected with the first fixing frame, and the other end of the second blade part is connected with one end of the first blade part; the first flow blocking surface is arranged on the first blade part, and the second blade part is provided with a second flow blocking surface.

The first flow blocking surface is perpendicular to or inclined at a first angle to the axial section of the rotating shaft, the second flow blocking surface is parallel to or inclined at a second angle to the axial section, and the second angle is smaller than the first angle.

Wherein, the second choke surface is in smooth transition connection with the first choke surface.

The flow blocking mechanism may further include a second fixing frame connected to the respective first blade portions of the at least two blades.

The blades extend radially outwards from the first fixing frame and then bend to axially extend.

The second fixing frame and the first fixing frame are both circular rings and are coaxially arranged, the diameter of the second fixing frame is larger than that of the first fixing frame, and the blades are located in the space between the second fixing frame and the first fixing frame.

Wherein, first mount is connected to second blade portion one end to first angle outwards extends the first distance, and the second blade portion other end is connected with third blade portion, and third blade portion outwards extends the second distance with the angle that is on a parallel with the rotation axis cross-section basically.

Wherein, the other end of third blade portion is connected with first blade portion, and the contained angle of third blade portion and first blade portion is between 20 degrees to 160 degrees.

The blade comprises a first blade part, a second blade part and a third blade part, one end of the second blade part is connected with the first fixing frame, the other end of the second blade part is connected with one end of the third blade part, and the other end of the third blade part is connected with one end of the first blade part; the first flow blocking surface is arranged on the first blade portion, the second blade portion is provided with a second flow blocking surface, and the third blade portion is provided with a third flow blocking surface.

The first flow blocking surface extends in the axial direction, is inclined to the axial direction or is inclined to the axial section of the rotating shaft; the third flow resistance surface is positioned at the rear section of the third blade part in the rotating direction facing to one surface of the stirrer blade and is gradually bent towards the blade along the rotating direction.

The first flow blocking surface is gradually close to the rotating shaft in the rotating direction until one part of the first flow blocking surface is connected with the third flow blocking surface, and a flow guide groove which is gradually close to the rotating shaft and the blade in the rotating direction is formed at the connection position.

The distance between the side edge of the third flow resisting surface at one side of the rotating direction and the blade is changed from increasing to decreasing in the direction away from the rotating shaft.

Wherein, the third blade portion is parallel to the axial cross section towards the direction of rotation anterior segment of agitator blade one side, forms the steady flow face of connecting the third choked flow face.

Wherein, the third choke surface and the first choke surface form an included angle of 20 degrees to 160 degrees.

Wherein, the third choke surface and the first choke surface form an included angle of 80 degrees to 100 degrees.

The distance between the second flow resistance surface and the blade is gradually increased in the direction away from the rotating shaft and gradually decreased in the direction along the rotating direction; the third flow resistance surface is positioned at the rear section of the third blade part in the rotating direction facing to one surface of the stirrer blade and is gradually bent towards the blade along the rotating direction.

Wherein, the third flow resistance surface and the second flow resistance surface form an included angle of 40-140 degrees.

Another technical scheme adopted by the application is as follows: providing a conditioning assembly comprising an agitator; the first fixing frame can rotate around the shaft center of the stirrer; the blade is connected with the first fixing frame and at least provided with a first flow blocking surface for blocking the fluid rotating around the shaft center of the stirrer and simultaneously driven to rotate along with the fluid by the impact of the fluid.

Wherein the stirrer comprises a blade which is at least partially inclined to the axial cross section of the rotating shaft of the stirrer, and the first flow blocking surface is configured to block at least part of the fluid from entering the rotating path of the blade.

The blade comprises a first blade part and a second blade part, one end of the second blade part is connected with the first fixing frame, and the other end of the second blade part is connected with one end of the first blade part; the first flow blocking surface is arranged on the first blade part, and the second blade part is provided with a second flow blocking surface; wherein the second flow resisting surface is inclined to the axial section of the rotating shaft of the stirrer, the inclination angle of the second blade part and the rotating shaft is less than 90 degrees, and the width range of the blade is between 3mm and 20 mm.

Wherein the axial distance between the second blade part and the blade is 1-15 mm.

Wherein, the blade is located the second blade portion upside, and is located the first blade portion inboard. Another technical scheme adopted by the application is as follows: a food processor is provided, which comprises a food processing component; a cup for containing a fluid; the cooking assembly is positioned in the cup body; and the motor is used for driving the stirrer to rotate.

Wherein the blade is positioned between the stirrer and the bottom of the cup body, the distance between the blade and the bottom of the cup body is 0.5-3mm, and the distance between the blade and the side wall of the cup body is 0.5-2 mm.

The beneficial effect of this application is: different from the situation of the prior art, the embodiment of the application enables the flow speed of the fluid to be relatively reduced by the flow resisting mechanism on one hand when the blade is ground to manufacture the fluid through the matching of the blade and the flow resisting mechanism, namely the relative rotating speed between the blade and the fluid is increased under the condition that the rotating speed of the blade is kept unchanged, so that the contact frequency between the fluid and the blade is increased, and the grinding efficiency is increased; on the other hand, the flow blocking mechanism guides the fluid part to the blade so as to enable the blade to repeatedly grind the fluid, and further, the high processing efficiency and the low noise are not needed, and finally, the drink making taste is improved and the user experience is improved.

Drawings

FIG. 1 is a schematic illustration of a first embodiment of a flow blocking mechanism according to the present application;

FIG. 2 is a schematic illustration of a second embodiment of a flow blocking mechanism according to the present application;

FIG. 3 is a schematic structural diagram of a stirrer of a conventional wall breaking machine;

FIG. 4 is a schematic view of the configuration of the present invention in which the agitator cooperates with a flow blocking mechanism;

FIG. 5 is a schematic view of another embodiment of an agitator of the present application in conjunction with a flow-impeding mechanism;

FIG. 6 is a schematic illustration of a third embodiment of a flow blocking mechanism according to the present application;

FIG. 7 is a schematic illustration of a fourth embodiment of a flow blocking mechanism according to the present application;

FIG. 8 is a side view schematic illustration of a fourth embodiment of a flow blocking mechanism of the present application;

FIG. 9 is an exploded view of a fifth embodiment of a flow blocking mechanism of the present application in cooperation with a blender and cup body;

FIG. 10 is a view of a fifth embodiment of a flow blocking mechanism of the present application taken along a first cross-section;

FIG. 11 is a view of a fifth embodiment of a flow blocking mechanism of the present application taken along a second cross-section;

FIG. 12 is a view of a fifth embodiment of a flow blocking mechanism of the present application taken along a third cross-section;

FIG. 13 is a schematic view of the configuration of the flow blocking mechanism, agitator and cup combination of the present application;

fig. 14 is a schematic view of the installation position of the choke mechanism in the food processor of the present application.

FIG. 15 shows a portion of experimental data for the preferred embodiment of the present application and the prior art.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are referred to in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

For a better understanding of the present application, a flow blocking mechanism, a food processing assembly and a food processing machine thereof provided by the present application will be described in more detail below with reference to the accompanying drawings and specific embodiments.

Please refer to fig. 1-5. Fig. 1 is a schematic structural view of a first embodiment of a flow blocking mechanism of the present application. In the first embodiment, the flow blocking mechanism includes the first fixing frame 10 and the blade 20. The blade 20 is connected to the first fixing frame 10, and has at least a first flow blocking surface 210, and blocks the fluid rotating around the axis of the agitator 40 by the first flow blocking surface 210. At the same time, the blades 20 are driven to rotate with the fluid under the impact of the fluid. The specific use scene of choked flow mechanism can be the cooking machine in the household electrical appliances field, for example broken wall machine, coffee machine, juice extractor, mixer etc.. Taking the wall breaking machine as an example, when people use the wall breaking machine in life, a certain proportion of water and food materials are generally put into the cup body 50 of the wall breaking machine (see fig. 10), and then the stirrer is rotated, and the blade 41 of the stirrer rotates to grind the food materials. After the food material is ground, part of the food material is dissolved in water, and the other part of the food material is fine particles which are difficult to dissolve in water, and at the moment, a mixture of liquid and the fine particles exists in the wall breaking machine. Such a mixture is referred to as a fluid in the present application for further explanation. The first holder 10 of the flow blocking mechanism serves on the one hand to rotationally fit the flow blocking mechanism in the rotational shaft 42 and on the other hand can be connected to the stationary blade 20 in order to allow the blade 20 to be arranged about the rotational shaft 42 via the first holder 10. The specific configuration of the blade 20 may vary, but it is desirable to have at least one flow-blocking surface, referred to herein as the first flow-blocking surface 210. The first blocking surface 210 is used to block the fluid rotating around the axis of the agitator 40 to reduce the flow velocity of the fluid. Of course, the flow blocking mechanism reduces the rotation speed of the fluid, and because the flow blocking mechanism is set to be capable of being impacted by the fluid to drive the blades 20 to rotate along with the fluid, the flow blocking mechanism can absorb the momentum of the fluid to rotate.

The blades 20 rotate at a slower rate than the blades because they rotate with the fluid. However, in some embodiments, the blades 20 may be driven to rotate by a drive mechanism, thereby changing the natural rotational speed at which the blades 20 are driven while the blades 20 are blocking the fluid. In further embodiments, the friction coefficient between the first fixing frame 10 and the rotating shaft 42 can also be designed to adjust the natural rotation speed of the blade 20. The blade 20 and the first fixing frame 10 can be fixedly connected, slidably connected or detachably connected, or the blade and the first fixing frame are integrally formed in the actual production process, so that the cost is reduced. The first fixing frame 10 may not be rotatably engaged with the rotating shaft 42, but fixed to the end of the blade 20 to fix the blade 20.

The first fixing frame 10 includes a ring plate 11, the ring plate 11 is provided with a through hole 12, and the rotating shaft 42 of the agitator 40 is sleeved through the through hole 12, so that the first fixing frame 10 can rotate relative to the rotating shaft 42. The specific sleeving manner may be various, for example, the aperture of the through hole 12 is set to be larger than that of the rotating shaft 42, so that the two are in clearance fit; or a bearing is arranged in the through hole 12 of the ring plate 11, after the outer ring of the bearing is fixedly connected with the ring plate 11, the bearing is sleeved on the rotating shaft 42, so that the ring plate 11 can rotate around the rotating shaft 42 smoothly. There are, of course, various other methods as long as the first fixing frame 10 can be relatively rotated with respect to the rotation shaft 42.

In addition, the number of the blades 20 on the flow resisting mechanism is preferably several. For example, there may be 2 blades 20 designed to be symmetrical, or 3 blades 20, 4 blades 20, etc. The plurality of blades 20 may be disposed with the ring plate 11 as a center, one end of the blade 20 is connected to the ring plate 11, and the other end extends radially away from the center. The plurality of blades 20 may have the same structure or different structures and sizes. When the plurality of blades 20 are distributed at equal angles or unequal angles by taking the ring piece 11 as a center, the phenomenon that the stress in all directions is uneven when the blades 20 are hit by fluid can be reduced, and further the blades 20 or the first fixing frame 10 can be prevented from deforming.

Referring to fig. 1, in the present embodiment, the blade 20 may be further divided into a first blade portion 21 and a second blade portion 22. Wherein, one end of the second blade portion 22 is connected to the first fixing frame 10, and the other end extends radially away from the rotating shaft 42 and is connected to one end of the first blade portion 21. The first blade portion 21 extends further after attachment of the second blade portion 22, although the direction of extension may be the same or different from the second blade portion 22, as will be described in further detail below. The first vane portion 21 has a first choke surface 210 formed thereon, and the second vane portion 22 has a second choke surface 220 formed thereon. Both the first flow blocking surface 210 and the second flow blocking surface 220 may functionally block the rotation of the fluid. Alternatively, the first blocking surface 210 may be configured as a main blocking surface to mainly block the rotation of the fluid, and the second blocking surface 220 has a function of guiding the fluid more, so as to guide the fluid to the first blocking surface 210 or the blade to achieve a function of reducing the rotation speed of the fluid faster.

Alternatively, the first blocking surface 210 may be disposed perpendicular to or inclined at a first angle to the axial section of the rotation shaft 42, and the second blocking surface 220 may be disposed parallel to or inclined at a second angle to the axial section, the second angle being smaller than the first angle. For example, the second blade portion 22 may first extend radially outward from the first fixture 10 and then extend upward at an angle perpendicular to the second blade portion 22 at the end of the second blade portion 22 to form the first blade portion 21, and the first blade portion 21 may be used to block water flow. Still alternatively, the second blade portion 22 is connected to the first fixing frame 10 and then twisted and extended outward in a spiral shape to form a second angle with the cross section of the rotating shaft 42, which may be, for example, 10 degrees, 15 degrees, 35 degrees, and so on, and the specific parameters thereof may be designed according to the specific application scenario. At the end of the second blade portion 22, the first blade portion 21 continues to extend, so that a first angle is formed between the first blade portion 21 and the axial section, the first angle may be 90 degrees, 80 degrees, etc., and a specific angle may be designed in connection with the product.

Please refer to fig. 1 and fig. 2 in a continued combination. Wherein figure 2 is yet another embodiment provided herein. In the embodiment, the second flow blocking surface 220 of the flow blocking mechanism is connected to the first flow blocking surface 210 in a smooth transition manner, that is, the second blade portion 22 where the second flow blocking surface 220 is located and the first blade portion 21 where the first flow blocking surface 210 is located are in an arc shape in a smooth transition manner when connected, so as to be integrally formed, and meanwhile, the fluid can be prevented from flowing on the blade 20 more uniformly and smoothly, and additional noise caused by an abrupt change of angle in the design of the blade 20 can be avoided.

In order to further improve the structural stability of the spoiler under impact of water currents, the present application provides a spoiler with a second mount 30. Wherein the second fixing frame 30 is connected with the respective first blade portions 21 of the at least two blades 20, so that the stability between the first blades 20 is enhanced by the connection. Alternatively, the first blade portions 21 of the blades 20 may be sequentially connected by means of a ring plate 11 to form a fixed ring centered on the rotation shaft 42. The second fixing frame 30 can also have a certain function of gathering water flow in addition to the function of reinforcing the blades 20. When the blades 41 rotate at a high speed to drive the fluid to rotate, the fluid is extruded by the blades 41 to flow downward and outward, and at this time, if the ring piece 11 of the second fixing frame 30 is designed to be the ring piece 11 with a larger width, the fluid can be blocked from flowing outward to a certain extent, and a certain gathering effect is achieved.

In another embodiment, the blades 20 of the flow blocking mechanism extend radially outward from the first fixing frame 10 and then are bent to extend axially, which will not be described in detail herein.

Alternatively, the second holder 30 and the first holder 10 of the choke mechanism may be both annular, and both may be coaxially disposed centering on the rotation shaft 42. Specifically, the diameter of the second fixing frame 30 may be larger than that of the first fixing frame 10, and one end of the blade 20 is connected to the first fixing frame 10, and the other end is connected to the second fixing frame 30. The blades 20 are disposed at least partially in the space between the second holder 30 and the first holder 10 so that the slurry is choked by the blades 20 in the space and finally flows in the space at a low flow rate.

Please refer to fig. 3, fig. 4 and fig. 5. Fig. 3 is a schematic structural diagram of a stirrer 40 of a conventional wall breaking machine, fig. 4 is a schematic structural diagram of the stirrer 40 of the present application in cooperation with a flow blocking mechanism, and fig. 4 and 5 are schematic structural diagrams of the flow blocking mechanism of fig. 1 and 2 of the present application in cooperation with the stirrer 40. As shown in fig. 3, in the conventional wall breaking machine, there is only a blade 41 for grinding food material. In the prior art, in order to improve the cutting and grinding effect of the blade 41, there are two common methods. First, the blade 41 is provided in a multi-layer structure, for example, a 3-layer blade 41 in fig. 3, which includes an upper blade 410, a middle blade 411, and a lower blade 412, thereby increasing a contact area between the blade and a fluid, and the like. Secondly, the grinding effect is improved by increasing the rotating speed of the blade 41 continuously when the food material is processed. Neither of the above two methods is the best choice in terms of blade cost or noise.

In the present application, a conditioning assembly is provided comprising a stirrer 40, a first fixture 10 and a blade 20. Wherein, the first fixing frame 10 can rotate around the axis of the stirrer 40, and at the same time, the first fixing frame 10 is connected with the blade 20. The blade 20 has at least a first flow blocking surface 210, and the first flow blocking surface 210 blocks the fluid rotating around the axis of the agitator 40. According to the newton's third law, the vane 20 receives the impact force of the fluid while blocking the rotation of the fluid by the first fluid blocking surface 210, and is thus driven to rotate around the rotation axis 42. In an embodiment, the stirrer 40 of the food processing assembly comprises a blade 41, wherein the blade 41 of the present application can only comprise the middle blade 411 and the flow blocking mechanism to cooperate with grinding, so as to achieve a better grinding effect, and the economic benefit is obviously improved. Specifically, at least a part of the middle blade 411 is inclined to the axial cross section of the rotating shaft 42 of the stirrer 40, and the first flow blocking surface 210 is configured to block at least a part of fluid to enter the rotating path of the middle blade 411, so that the fluid can be blocked and decelerated to contact the middle blade 411 at a higher relative rotating speed, the contact frequency with the middle blade 411 is increased, the grinding effect is improved, and the noise is effectively reduced. Further, the blade 20 includes a first blade portion 21 and a second blade portion 22. One end of the second blade 22 is connected to the first holder 10, and the other end is connected to one end of the first blade 21. The first vane portion 21 is provided with a first flow blocking surface 210 for blocking the flow of the fluid. The second vane portion 22 is provided with a second flow blocking surface 220 for blocking the rotation of the fluid. The specific configuration of the first flow blocking surface 210 and the second flow blocking surface 220 is determined by the configuration of the first blade portion 21 and the second blade portion 22, for example, when the first blade portion 21 is in a twisted spiral form, the first flow blocking surface 210 on the outer surface thereof may be understood as a twisted spiral curved surface, and similarly, if the second blade portion 22 is a rectangular parallelepiped sheet, the second flow blocking surface 220 is a common plane. The blade 41 has a certain inclination when engaged with the rotary shaft 42 to enable a stronger pushing force to press the fluid downward, for example, referring to fig. 5, the blade 41 has an inclined angle with respect to a cross section of the rotary shaft 42. In order to ensure that the second flow-blocking surface 220 has a certain flow-guiding function, the second flow-blocking surface 220 is optionally arranged obliquely to the axial cross section of the rotational shaft 42 of the agitator 40.

Further, in order to effectively ensure low noise while improving the polishing efficiency, the present application provides the following embodiments. Wherein the inclination angle of the second blade portion 22 to the axis of the rotation shaft 42 may be set to an angle smaller than 90 degrees, and at the same time, the width of the blade 20 may be set to a range between 3mm and 20 mm. A certain axial distance should be kept between the blade 20 and the blade 41 to prevent the food material with larger particles from being stuck between the two and affecting the normal operation of the machine, for example, the distance may be in the range of 1mm-15 mm. The number of the blades 20 can be selected from 2 to 10, preferably 3. In order to ensure better flow blocking effect, the distance between the edge of the blade 41 and the edge of the blade 20 is 1mm-10mm, and the gap between the bottommost edge of the blade 41 and the edge of the top side of the second fixing frame 30 is 15mm-60 mm. The width of the second holder 30 may be a ring of less than 50 mm. Meanwhile, in order to consider the structural stability of the blade 20 and the second fixing frame 30, both should have a certain thickness, for example, between 0.4mm and 3 mm. The size of the specific design may be defined according to a specific product application scenario, and is not particularly limited herein.

Please refer to fig. 6, which is a schematic structural diagram of another embodiment of the present application. In the present embodiment, the second vane portion 22 may be arranged to extend in a direction parallel or substantially parallel to the cross section of the rotation shaft 42 to form the radial second vane portion 22, and the second vane portion 22 in the present embodiment is in 3 fitting. Correspondingly, at the end of the second blade portion 22, the first blade portion 21 is formed to extend upward in a direction perpendicular or approximately perpendicular to the second blade portion 22. At the tip end of the first blade 21, a second fixing frame 30 is connected between adjacent first blade 21. The second fixing frame 30 in the present embodiment may have a ring shape, but may have another fixing frame shape.

Please refer to fig. 7 and 8, which are schematic structural diagrams of another embodiment of the present disclosure. In the choke mechanism, the first holder 10 is connected to one end of the second blade portion 22 and extends outward at a first angle by a first distance. In the process of extending the first distance, the extension may be curved in an arc shape or may be linear. The first distance may be specifically designed according to the size of the cup 50, and may extend for 5mm, 15mm, etc., for example, and is not limited herein. The first angle may be upward or downward, and may form an angle with the cross section of the rotation axis 42, for example, 8 degrees to 35 degrees. Of course, the design can be designed according to actual situations. At the other end of the second blade portion 22, a third blade portion 23 is connected, the third blade portion 23 extending outwardly a second distance at an angle substantially parallel to a cross-section of the rotation axis 42. Optionally, the second blade portion 22 extends downwardly a first distance and continues at a distal end to form a third blade portion 23 extending parallel to the rotation axis 42 cross-section.

In order to better achieve the choke effect, the choke mechanism further includes the first blade portions 21. The other end of the third blade portion 23 is connected to the first blade portion 21, and an included angle between the third blade portion 23 and the first blade portion 21 is 20 degrees to 160 degrees. Alternatively, the second blade portion 22 extends at a downward angle and the first blade portion 21 extends at an upward angle to enable the blade 41 to be used in cooperation therewith at an upper side of the plurality of second blade portions 22 and an inner side of the plurality of first blade portions 21. This design is more favorable for the cooperation among the first blade portion 21, the second blade portion 22, and the third blade portion 23, and reduces the rotational speed of the fluid driven by the blade 41 to flow. In the case where the rotation speed of the blade 41 is kept constant following the rotation shaft 42, the relative rotation speed of the fluid and the blade 41 is relatively increased to finally improve the grinding effect.

Referring to fig. 9 to 12, a flow blocking mechanism provided in the present embodiment is included. The choke mechanism blade 20 of the present embodiment includes a first blade portion 21, a second blade portion 22 and a third blade portion 23, wherein one end of the second blade portion 22 is connected to the first fixing frame 10, the other end of the second blade portion 22 is connected to one end of the third blade portion 23, and the other end of the third blade portion 23 is connected to one end of the first blade portion 21. The first flow blocking surface 210 is provided on the first vane portion 21, the second vane portion 22 has a first flow blocking surface 220, and the third vane portion 23 also has a third flow blocking surface 230. In an embodiment, the first blocking surface 210 may extend axially, i.e. may extend in a direction parallel to the rotation axis. The first flow blocking surface 210 may also extend obliquely to the axial direction or obliquely to the axial cross section of the rotating shaft, so as to be able to block the rotation of the fluid through the oblique flow blocking surface on one hand, and on the other hand, to play a certain role in guiding the fluid to the blade 41 above the flow blocking mechanism (fig. 9, 10, 11, and 12 do not show the position of the blade 41, and the positional relationship between the blade 41 and the flow blocking mechanism in this embodiment can refer to fig. 5). The third choke surface 230 is located at a rotationally rear section of the third blade part 23 facing the agitator blade 41, and is gradually curved toward the agitator blade 41 along the rotational direction. In an embodiment, the first blocking surface 210 gradually approaches the rotation axis in the rotation direction until a portion of the first blocking surface is connected to the third blocking surface 230, and a guiding groove gradually approaching the rotation axis and the blade 41 in the rotation direction is formed at the connection. The guide grooves have a certain torsional arc, so that the flow can be guided to the blade 41 above the flow blocking mechanism in a targeted manner while the flow is blocked, so as to increase the contact frequency of the blade 41 and the fluid.

In an embodiment, the distance between the side edge of the third choke surface 230 on one side of the rotation direction and the blade 41 gradually increases in the direction away from the rotation axis, which can be referred to in detail in fig. 10, 11 and 12. In fig. 10, the cut surface of the flow blocking mechanism is located at a position shifted backward by 5mm from the middle cross-sectional surface of the blade 20, the cut surface of fig. 11 is located at a position shifted backward by 5mm from the middle cross-sectional surface of the blade 20, and the cut surface of fig. 12 is located at a position shifted backward by 5mm from the middle cross-sectional surface of the blade 20, and since the distance between the side edge of the third flow blocking surface 230 located on the side of the rotation direction and the blade 41 is gradually increased in the direction away from the rotation axis, the distance B between the bottom of the third flow blocking surface 230 and the bottom of the cup 50 in fig. 10 is larger, smaller in fig. 11, and the distance in fig. 12 is the smallest in the three views. In another embodiment, the third choke surface 230 may gradually increase and then decrease in a direction away from the rotation axis.

In one embodiment, the front section of the third blade part 23 facing the agitator blade 41 in the rotation direction is parallel to the axial section, and forms a flow stabilizing surface connected to the third flow blocking surface 230. The angle between the third choke surface 230 and the first choke surface 210 may be set to be between 20 degrees and 160 degrees. The angle between the third choke surface 230 and the first choke surface 210 may be set to be between 80 degrees and 100 degrees. Of course, the specific setting angle may be specifically designed in combination with actual situations in different models, and is not limited herein.

In an embodiment, the distance between the first flow blocking surface 220 and the blade 41 changes in a gradually increasing manner in a direction away from the rotation axis and changes in a gradually decreasing manner in a direction along the rotation direction, and the third flow blocking surface 230 is located at a rear section of the third blade part 23 in the rotation direction facing the agitator blade 41 and is gradually curved toward the blade 41 in the rotation direction. The third choke surface 230 may form an angle of 40 to 140 degrees with the first choke surface 220.

Please refer to fig. 13 and 14. This embodiment provides a food processor comprising a cup 50 for containing a slurry. The slurry can be a mixed fluid obtained by combining fruits, vegetables, water and other food materials according to a certain proportion, chopping and grinding the mixture, and the mixed fluid has certain fluidity. In the cooking machine of this embodiment, can install all kinds of choked flow mechanism or arrange the subassembly as required mentioned above to the installation is used for driving agitator 40 pivoted motor to it is rotatory to drive blade 41 through the rotation axis 42 of agitator 40, finally drives the fluid flow, finally is ground by blade 41 repeatedly.

Please refer to fig. 15. In a preferred embodiment, the data obtained from the experimental tests performed by the inventors are shown in FIG. 15. In fig. 15, by comparing the solution without choke mechanism with the solution with choke mechanism in the present application, the rotation speed of the two blades is kept at 11000rpm, and under the same noise 81.49dB, the residue rate of the preferred embodiment of the present application can reach 2.7%, which improves the effect close to 50%. Compared with the noise level of the prior art, the noise level of the application is correspondingly improved. In terms of cost, the number of the blades 41 can be reduced by at least one, for example, the upper blade 410, the middle blade 411 and the lower blade 412 are reduced, and even only the middle blade can be reserved, so that the production cost is effectively reduced.

Be different from prior art, this application embodiment sets up choked flow mechanism, cooking subassembly and cooking machine. By providing the flow blocking mechanism, including the first fixing frame 10 and the blade 20, the first flow blocking surface 210 on the blade 20 can be used for blocking the fluid rotating around the axis of the agitator 40, and at the same time, the fluid impacts the blade 20 to drive the blade 20 to rotate along with the fluid. Through setting up cooking subassembly for blade 41 on the agitator 40 in the cooking subassembly can fully cooperate with the choked flow mechanism, carries out the choked flow and grinds the ground paste. Through setting up the cooking machine, make this cooking machine's cup 50, choked flow mechanism cooperates with blade 41 jointly, when blade 41 is rotatory, the fluid is driven rotatoryly in cup 50, the velocity of flow reduces after the fluid meets choked flow mechanism, under the unchangeable condition is kept to 41 rotational speeds of blade, the relative velocity of motion of fluid and blade 41 has been increased in other words, and then the frequency of contact of fluid with blade 41 has been improved, finally can effectively promote the grinding effect under lower grinding speed, and can effectively reduce the noise again, promote user's use and experience.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (23)

1. A flow blocking mechanism, comprising:

a first fixing frame;

the blade is connected with the first fixing frame and at least provided with a first flow blocking surface and is used for blocking the fluid rotating around the shaft center of the stirrer and simultaneously driven to rotate along with the fluid by the impact of the fluid.

2. The flow-blocking mechanism of claim 1,

the first fixing frame comprises a ring piece, the ring piece is provided with a through hole and sleeved on a rotating shaft of the stirrer through the through hole so as to be capable of rotating relative to the rotating shaft;

the number of the blades is a plurality, the ring piece is used as a center, one end of the blade is connected with the ring piece, and the other end of the blade is radially distributed away from the center in an extending mode.

3. The flow-blocking mechanism of claim 2,

the blade comprises a first blade part and a second blade part, one end of the second blade part is connected with the first fixing frame, and the other end of the second blade part is connected with one end of the first blade part;

the first flow blocking surface is disposed on the first blade portion, and the second blade portion has a second flow blocking surface.

4. The flow-blocking mechanism of claim 3,

the first flow-impeding surface is perpendicular to or inclined at a first angle to an axial cross-section of the rotating shaft, the second flow-impeding surface is parallel to or inclined at a second angle to the axial cross-section, and the second angle is smaller than the first angle.

5. The flow-blocking mechanism of claim 3,

the second flow blocking surface is in smooth transition connection with the first flow blocking surface.

6. The mechanism of any of claims 3-5, further comprising a second mount coupled to each of the first blade portions of at least two of the blades.

7. The flow-blocking mechanism of claim 6, wherein the vanes extend radially outward from the first mount and then bend to extend axially.

8. The flow-blocking mechanism of claim 7, wherein the second fixture and the first fixture are both annular and coaxially disposed, and a diameter of the second fixture is greater than a diameter of the first fixture.

9. The flow-blocking mechanism of claim 2,

the blade comprises a first blade part, a second blade part and a third blade part, one end of the second blade part is connected with the first fixing frame, the other end of the second blade part is connected with one end of the third blade part, and the other end of the third blade part is connected with one end of the first blade part;

the first flow blocking surface is disposed on the first blade portion, the second blade portion has a second flow blocking surface, and the third blade portion has a third flow blocking surface.

10. The flow-blocking mechanism of claim 9,

the first flow blocking surface extends in an axial direction, is inclined to the axial direction, or is inclined to an axial section of the rotating shaft;

the third flow blocking surface is located at a rotation direction rear section of a face of the third blade portion facing the agitator blade, and is gradually curved toward the blade along the rotation direction.

11. The flow-blocking mechanism of claim 10,

the first choke surface gradually approaches the rotating shaft in the rotating direction until a part of the first choke surface is connected with the third choke surface, and a diversion trench gradually approaches the rotating shaft and the blade along the rotating direction is formed at the connection position.

12. The flow-blocking mechanism of claim 10,

the distance between the side edge of the third flow blocking surface on one side of the rotating direction and the blade is gradually increased in the direction away from the rotating shaft or is changed from gradually increasing to gradually decreasing.

13. The flow-blocking mechanism of claim 10,

the third blade part is parallel to the axial section towards the front section of the rotation direction of one surface of the stirrer blade, and a flow stabilizing surface connected with the third flow resistance surface is formed.

14. The flow-blocking mechanism of claim 9,

the third flow resistance surface and the first flow resistance surface form an included angle of 20-160 degrees.

15. The flow-blocking mechanism of claim 14,

the third flow resistance surface and the first flow resistance surface form an included angle of 80-100 degrees.

16. The flow-blocking mechanism of claim 9,

the distance between the second flow resistance surface and the blade is gradually increased along the direction away from the rotating shaft and gradually decreased along the rotating direction;

the third flow blocking surface is located at a rotation direction rear section of a face of the third blade portion facing the agitator blade, and is gradually curved toward the blade along the rotation direction.

17. The flow-blocking mechanism of claim 16,

the third flow resistance surface and the second flow resistance surface form an included angle of 40-140 degrees.

18. A material handling assembly, comprising:

a stirrer;

a first mount rotatable about the agitator axis;

the blade is connected with the first fixing frame and at least provided with a first flow blocking surface and is used for blocking the fluid rotating around the shaft center of the stirrer and simultaneously driven to rotate along with the fluid by the impact of the fluid.

19. The food processing assembly of claim 18,

the agitator includes a blade at least partially oblique to an axial cross-section of an axis of rotation of the agitator, the first flow-blocking surface being configured to block at least a portion of fluid into a path of rotation of the blade.

20. The cooking assembly of claim 19, wherein the handle is a single handle,

the blade comprises a first blade part and a second blade part, one end of the second blade part is connected with the first fixing frame, and the other end of the second blade part is connected with one end of the first blade part;

the first flow blocking surface is disposed on the first blade portion, and the second blade portion has a second flow blocking surface;

the inclination angle of the second blade part and the rotating shaft is smaller than 90 degrees, and the width range of the blade is between 3mm and 20 mm;

the axial distance between the second blade part and the blade ranges from 1mm to 15 mm.

21. The cuisine assembly of any one of claims 18 to 20, wherein the blade is located on an upper side of the second blade portion and inside the first blade portion.

22. A food processor, comprising:

a cup for containing a fluid;

the food processing assembly of any one of claims 18 to 21, located within the cup body;

the stirrer is positioned in the cup body;

and the motor is used for driving the stirrer to rotate.

23. The food processor of claim 22,

the blades are positioned between the stirrer and the bottom of the cup body, and the distance between the blades and the bottom of the cup body is 0.5-3mm, and the distance between the blades and the side wall of the cup body is 0.5-2 mm.

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