Food processor

Abstract

The utility model provides a food processor. The food processor comprises a main machine, the main machine comprises a motor and a gearbox, the gearbox comprises a driving gear and a driven gear, the driving gear comprises an inner gear and an outer gear ring, the inner gear comprises a first toothless section and an inner tooth section with a plurality of teeth, and the outer gear ring comprises a second toothless section and an outer tooth section with a plurality of teeth; the driven gear is located between the inner gear and the outer gear ring, the driven gear is alternately meshed with the inner tooth section and the outer tooth section, the driving gear is fixedly arranged on a main driving shaft, the driven gear is fixedly arranged on a driven shaft, and the motor drives the main driving shaft to rotate; the stirring cup assembly is assembled on the main machine, the stirring cup assembly comprises a stirring cup and a base plate arranged at the bottom of the stirring cup, the main driving shaft and the driven shaft penetrate through the base plate, the main driving shaft is provided with a driving cutter, and the driven shaft is provided with a driven cutter. In this way, the food material smashing efficiency is higher.

Description

Technical Field

[0001] The present application relates to the field of food processing, and particularly to a cooking machine. Background Art

[0002] With the increasing improvement of people's living standards, many different types of cooking machines have emerged on the market. The functions of the cooking machine mainly can include, but are not limited to, making soy milk, squeezing fruit juice, mincing meat, making shaved ice, making coffee, and / or preparing facial masks, etc. The cooking machine can include machines for crushing food materials such as a soy milk machine, a blender, or a wall-breaking cooking machine. Existing cooking machines have the problem of low crushing efficiency. Summary of the Utility Model

[0003] The purpose of the present application is to provide a cooking machine with high crushing efficiency for food materials.

[0004] The present application provides a cooking machine. The cooking machine includes: a main body, including a motor and a gearbox, the gearbox includes a driving gear and a driven gear, and the driving gear includes an inner gear and an outer gear ring, the inner gear includes a first toothless section and an inner tooth section with a plurality of teeth, the outer gear ring includes a second toothless section and an outer tooth section with a plurality of teeth, the driven gear is located between the inner gear and the outer gear ring, and the driven gear alternately meshes with the inner tooth section and the outer tooth section, the driving gear is fixedly arranged on a main driving shaft, the driven gear is fixedly arranged on a driven shaft, and the motor drives the main driving shaft to rotate; and a stirring cup assembly, assembled on the main body, the stirring cup assembly includes a stirring cup and a chassis arranged at the bottom of the stirring cup, the main driving shaft and the driven shaft respectively pass through the chassis, and a driving knife is arranged on the main driving shaft, and a driven knife is arranged on the driven shaft. When the main body is started, the motor drives the main driving shaft to rotate, and the main driving shaft drives the driving knife to rotate together to stir and crush the food materials. During the rotation of the main driving shaft, the driven gear alternately meshes with the inner tooth section of the inner gear and the outer tooth section of the outer gear ring. When the driven gear meshes with the outer tooth section, the driven shaft rotates forward, and when the driven gear meshes with the inner tooth section, the driven shaft rotates reversely. That is to say, the driven shaft drives the driven knife to continuously switch between forward rotation and reverse rotation. In this way, when the driven knife cooperates with the driving knife to stir and crush the food materials, it can also play a role in disturbing the flow. Thus, the crushing efficiency of the food materials is higher.

[0005] Further, the driving knife is detachably arranged at the top of the main driving shaft, and the driven knife is detachably arranged at the top of the driven shaft. After the cooking machine finishes working, the driving knife and the driven knife can be detached for cleaning, making it more convenient and thorough for the user to clean the cooking machine.

[0006] Furthermore, the main drive shaft includes a main drive section, the main drive section includes a plurality of main drive edges extending in the up-and-down direction, the plurality of main drive edges are gradually deflected circumferentially along the main drive section, and the deflection direction of the plurality of main drive edges from bottom to top is opposite to the rotation direction of the active knife. The active knife is provided with a main drive hole matching the main drive section, and the main drive hole includes a convex corner extending vertically in the up-and-down direction. In this way, the main drive edge has a downward limiting effect on the active knife, so that the active knife cannot axially disengage from the main drive shaft upward during high-speed rotation.

[0007] Furthermore, the driven shaft includes a secondary drive section and a locking block rotatably arranged above the secondary drive section. The driven knife is detachably mounted on the secondary drive section. The locking block includes a plurality of convex edges extending in the up-and-down direction. When the locking block is in the initial state, the projection of the locking block in the horizontal direction falls within the projection of the secondary drive section in the horizontal direction. When the locking block rotates to the working state, at least part of the convex edges protrude from the outer surface of the secondary drive section. Before using the food processor, by rotating the locking block, the locking block is in the initial state, and at this time the driven knife can be assembled on the secondary drive section. Before the food processor starts working, the user rotates the locking block by hand by a certain angle to switch the locking block from the initial state to the working state, so that the locking block limits the driven knife. Or, during the working process of the food processor, the locking block rotates relative to the driven shaft under the resistance of the food or water, and switches from the initial state to the working state, so that the locking block limits the driven knife. After the food processor finishes working and needs to be cleaned, by rotating the locking block, the locking block is switched from the working state to the initial state, and at this time the driven knife can be disassembled for cleaning.

[0008] Furthermore, the sum of the arc angles of the inner tooth section and the outer tooth section is between 210 degrees and 330 degrees. During the process of the driven gear meshing with the inner tooth section and switching to meshing with the outer tooth section, or during the process of the driven gear meshing with the outer tooth section and switching to meshing with the inner tooth section, the driven gear will cooperate with the first toothless section and the second toothless section, and at this time the driven gear will not rotate, so that the driven shaft can transition more smoothly when switching between forward rotation and reverse rotation.

[0009] Furthermore, the active knife includes a main knife holder and main knife blades arranged on the main knife holder, the driven knife includes a secondary knife holder and secondary knife blades arranged on the secondary knife holder, and the distance between the main knife blades and the secondary knife blades in the vertical direction is between 2 millimeters and 50 millimeters. In this way, the main knife blades and the secondary knife blades can crush the food materials at different heights in the mixing cup, and can further improve the crushing efficiency.

[0010] Further, the sub - blade includes a first cutting edge and a second cutting edge opposite to the first cutting edge. In this way, whether the sub - blade rotates forward or backward, the first cutting edge or the second cutting edge can cut the food ingredients.

[0011] Further, the ratio of the center distance between the main drive shaft and the driven shaft to the inner diameter of the mixing cup is between 0.25 and 0.75. In this way, the active knife and the driven knife can beat and crush the food ingredients in the mixing cup within a relatively large radial range, and the crushing effect is better.

[0012] Further, when the driven gear meshes with the inner tooth section, the ratio of the rotational speed of the active knife to the rotational speed of the driven knife is between 0.25 and 1; when the driven gear meshes with the outer tooth section, the ratio of the rotational speed of the active knife to the rotational speed of the driven knife is between 0.125 and 0.5. In this way, the transmission is a speed - increasing mechanism and the motor speed is relatively low. Thus, the noise can be reduced better.

[0013] Further, the chassis is provided with a perforation for the main drive shaft and the driven shaft to pass through and a convex platform surrounding the perforation. By setting the convex platform, on the one hand, it is convenient to limit the main drive shaft and the driven shaft, and on the other hand, it increases the heat dissipation area and improves the phenomenon of bottom sticking. Description of the Drawings

[0014] Figure 1 Shown is an exploded perspective view of an embodiment of the food processor of the present application;

[0015] Figure 2 Shown as Figure 1 A sectional view of the food processor shown, with the cup cover assembly hidden;

[0016] Figure 3 Shown as Figure 2 A sectional view of the main body shown;

[0017] Figure 4 Shown as Figure 3 An exploded perspective view of the main body shown;

[0018] Figures 5 to 7 Shown as Figure 3 A perspective schematic diagram of the main body shown in different working states. Detailed Description of the Embodiment

[0019] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0020] The terms used in the present application are for the purpose of describing particular embodiments only and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the ordinary meanings understood by those of ordinary skill in the art to which the present invention pertains. The use of the words "a" or "an" and the like in the specification and claims of the present application do not denote a limitation of quantity, but rather denote the presence of at least one. The words "comprising" or "including" and the like mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. The words "connected" or "coupled" and the like are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms "a", "the", and "said" used in the specification and appended claims of the present application are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0021] Please refer to Figures 1 to 7 , the cooking machine 100 includes a mixing cup assembly 10, a main body 20, and a cup lid assembly 30. The mixing cup assembly 10 is assembled to the main body 20, and the cup lid assembly 30 is covered on the mixing cup assembly 10.

[0022] The main body 20 includes a motor 29 and a transmission 28. The transmission 28 includes a driving gear 281 and a driven gear 282. The driving gear 281 includes an inner gear 284 and an outer gear ring 285. The inner gear 284 includes a first toothless section 2842 and an inner tooth section 2841 with a number of teeth. The outer gear ring 285 includes a second toothless section 2852 and an outer tooth section 2851 with a number of teeth. The driven gear 282 is located between the inner gear 284 and the outer gear ring 285, and the driven gear 282 alternately meshes with the inner tooth section 2841 and the outer tooth section 2851. The driving gear 281 is fixedly arranged on the main driving shaft 21, the driven gear 282 is fixedly arranged on the driven shaft 22, and the motor 29 drives the main driving shaft 21 to rotate. The first toothless section 2842 and the second toothless section 2852 are not provided with teeth. In one embodiment, the main driving shaft 21 and the output shaft of the motor 29 are integrally formed. In another embodiment, the main driving shaft 21 is fixed to the output shaft of the motor 29. In yet another embodiment, the main driving shaft 21 is connected to the output shaft of the motor 29 through a coupling.

[0023] In one embodiment, the transmission 28 includes a box body 286 and a cover body 287 covering the box body 286. The main driving shaft 21 and the driven shaft 22 respectively pass through the cover body 287, and bearings 2881 and snap rings 2882 are provided between the main driving shaft 21 and the driven shaft 22 and the cover body 287.

[0024] In one embodiment, the mixing cup assembly 10 is detachably assembled to the main body 20. In another embodiment, the mixing cup assembly 10 is fixed to the main body 20. The mixing cup assembly 10 includes a mixing cup 11 and a chassis 12 provided at the bottom of the mixing cup 11. The main driving shaft 21 and the driven shaft 22 respectively pass through the chassis 12. The main driving shaft 21 is provided with a driving knife 211, and the driven shaft 22 is provided with a driven knife 221. The mixing cup 11 is used to hold food ingredients. In the illustrated embodiment, the chassis 12 is provided with a heating tube to heat the food ingredients in the mixing cup 11. In other embodiments, the chassis 12 is not provided with a heating tube and cannot heat the food ingredients.

[0025] When the host 20 starts, the motor 29 drives the main drive shaft 21 to rotate. The main drive shaft 21 drives the active knife 211 to rotate together to beat and crush the food ingredients. During the rotation of the main drive shaft 21, the driven gear 282 alternately meshes with the inner tooth section 2841 of the internal gear 284 and the outer tooth section 2851 of the outer gear ring 285. When the driven gear 282 meshes with the outer tooth section 2851, the driven shaft 22 rotates forward. When the driven gear 282 meshes with the inner tooth section 2841, the driven shaft 22 rotates in the reverse direction. That is to say, the driven shaft 22 drives the driven knife 221 to continuously switch between forward rotation and reverse rotation. In this way, when the driven knife 221 cooperates with the active knife 211 to beat and crush the food ingredients, it can also play a role in disturbing the flow. Thus, the crushing efficiency of the food ingredients is higher.

[0026] In the illustrated embodiment, the active knife 211 is detachably disposed at the top end of the main drive shaft 21, and the driven knife 221 is detachably disposed at the top end of the driven shaft 22. After the food processor 100 finishes working, the active knife 211 and the driven knife 221 can be detached for cleaning, making it more convenient and thorough for the user to clean the food processor 100.

[0027] The main drive shaft 21 includes a main drive section 212. The main drive section 212 includes a plurality of main drive edges 2121 extending in the vertical direction. The plurality of main drive edges 2121 are gradually deflected along the circumferential direction of the main drive section 212. The deflection direction of the plurality of main drive edges 2121 from bottom to top is opposite to the rotation direction of the active knife 211. The active knife 211 is provided with a main drive hole 2111 matching the main drive section 212. The main drive hole 2111 includes a convex angle extending vertically in the vertical direction. In this way, the main drive edge 2121 has a downward limiting effect on the active knife 211, so that the active knife 211 cannot axially disengage from the main drive shaft 21 upward during high-speed rotation.

[0028] The driven shaft 22 includes a driven section 222 and a locking block 229 rotatably disposed above the driven section 222. The driven blade 221 is detachably mounted on the driven section 222. The locking block 229 includes a plurality of convex edges 2291 extending in the up and down direction. Among them, when the locking block 229 is in the initial state, the projection of the locking block 229 in the horizontal direction falls within the projection of the driven section 222 in the horizontal direction. When the locking block 229 rotates to the working state, at least part of the convex edges 2291 protrude from the outer surface of the driven section 222. Before using the food processor 100, by rotating the locking block 229, the locking block 229 is in the initial state, and at this time, the driven blade 221 can be assembled on the driven section 222. Before the food processor 100 starts working, the user rotates the locking block 229 by hand by a certain angle, and switches the locking block 229 from the initial state to the working state, so that the locking block 229 limits the driven blade 221. Or, during the working process of the food processor 100, the locking block 229 rotates relative to the driven shaft 22 under the resistance of the food or water, and switches from the initial state to the working state, so that the locking block 229 limits the driven blade 221. When it is necessary to clean after the food processor 100 finishes working, by rotating the locking block 229, the locking block 229 is switched from the working state to the initial state, and at this time, the driven blade 221 can be disassembled for cleaning.

[0029] The sum of the arc angles of the inner tooth section 2841 and the arc angle of the outer tooth section 2851 is between 210 degrees and 330 degrees. During the process of the driven gear 282 meshing with the inner tooth section 2841 and switching to meshing with the outer tooth section 2851, or during the process of the driven gear 282 meshing with the outer tooth section 2851 and switching to meshing with the inner tooth section 2841, the driven gear 282 will cooperate with the first toothless section 2842 and the second toothless section 2852. At this time, the driven gear 282 will not rotate, so that the driven shaft 22 can transition more smoothly when switching between forward rotation and reverse rotation. In the illustrated embodiment, the arc angle of the outer tooth section 2851 is greater than the arc angle of the inner tooth section 2841. In another embodiment, the arc angle of the outer tooth section 2851 is less than the arc angle of the inner tooth section 2841.

[0030] The active cutter 211 includes a main cutter holder 2119 and a main cutting blade 2118 disposed on the main cutter holder 2119. The driven cutter 221 includes a secondary cutter holder 2219 and a secondary cutting blade 2218 disposed on the secondary cutter holder 2219. The distance between the main cutting blade 2118 and the secondary cutting blade 2218 in the vertical direction is between 2 mm and 50 mm. In this way, the main cutting blade 2118 and the secondary cutting blade 2218 can crush food materials at different heights in the mixing cup 11, which can further improve the crushing efficiency. In some embodiments, the distance between the main cutting blade 2118 and the secondary cutting blade 2218 in the vertical direction can be 2 mm, 10 mm, 20 mm, 30 mm, 40 mm, 50 mm or a value between any two adjacent ones above.

[0031] The secondary cutting blade 2218 includes a first cutting edge 22181 and a second cutting edge 22182 opposite to the first cutting edge 22181. In this way, no matter whether the secondary cutting blade 2218 rotates forward or backward, the first cutting edge 22181 or the second cutting edge 22182 can cut the food materials.

[0032] The ratio of the center distance between the main driving shaft 21 and the driven shaft 22 to the inner diameter of the mixing cup 11 is between 0.25 and 0.75. In this way, the active cutter 211 and the driven cutter 221 can beat and crush the food materials in the mixing cup 11 within a larger radial range, and the crushing effect is better.

[0033] When the driven gear 282 meshes with the inner tooth section 2841, the ratio of the rotational speed of the active cutter 211 to the rotational speed of the driven cutter 221 is between 0.25 and 1. When the driven gear 282 meshes with the outer tooth section 2851, the ratio of the rotational speed of the active cutter 211 to the rotational speed of the driven cutter 221 is between 0.125 and 0.5. In this way, the speed-increasing mechanism is provided in the transmission 28, and the rotational speed of the motor 29 is relatively low. Thus, the noise can be reduced preferably.

[0034] The chassis 12 is provided with a through hole 126 for the main driving shaft 21 and the driven shaft 22 to pass through and a convex platform 125 surrounding the through hole 126. By providing the convex platform 125, on the one hand, it is convenient to limit the main driving shaft 21 and the driven shaft 22, and on the other hand, the heat dissipation area is increased to improve the phenomenon of bottom sticking.

[0035] In the illustrated embodiment, elastic sealing rings 2884 are respectively provided on the chassis 12, the main driving shaft 21 and the driven shaft 22, which can effectively improve the assembly process tolerance, better play a sealing role, and at the same time reduce the noise.

[0036] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of protection of the present application.

Claims

1. A cooking machine, characterized in that: It includes: A main machine (20), including a motor (29) and a gearbox (28). The gearbox (28) includes a driving gear (281) and a driven gear (282). The driving gear (281) includes an internal gear (284) and an external gear ring (285). The internal gear (284) includes a first toothless section (2842) and an internal tooth section (2841) with a plurality of teeth. The external gear ring (285) includes a second toothless section (2852) and an external tooth section (2851) with a plurality of teeth. The driven gear (282) is located between the internal gear (284) and the external gear ring (285), and the driven gear (282) alternately meshes with the internal tooth section (2841) and the external tooth section (2851). The driving gear (281) is fixedly arranged on a main driving shaft (21), the driven gear (282) is fixedly arranged on a driven shaft (22), and the motor (29) drives the main driving shaft (21) to rotate; and A mixing cup assembly (10), assembled on the main machine (20). The mixing cup assembly (10) includes a mixing cup (11) and a chassis (12) arranged at the bottom of the mixing cup (11). The main driving shaft (21) and the driven shaft (22) respectively pass through the chassis (12), and a driving knife (211) is arranged on the main driving shaft (21), and a driven knife (221) is arranged on the driven shaft (22).

2. The cooking machine according to claim 1, characterized in that: The driving knife (211) is detachably arranged at the top end of the main driving shaft (21), and the driven knife (221) is detachably arranged at the top end of the driven shaft (22).

3. The cooking machine according to claim 2, characterized in that: The main driving shaft (21) includes a main driving section (212). The main driving section (212) includes a plurality of main driving edges (2121) extending in the up and down direction. The plurality of main driving edges (2121) are gradually deflected along the circumferential direction of the main driving section (212). The deflection direction of the plurality of main driving edges (2121) from bottom to top is opposite to the rotation direction of the driving knife (211). The driving knife (211) is provided with a main driving hole (2111) matching the main driving section (212). The main driving hole (2111) includes a convex angle extending vertically in the up and down direction.

4. The cooking machine according to claim 2, characterized in that: The driven shaft (22) includes a secondary driving section (222) and a locking block (229) rotatably arranged above the secondary driving section (222). The driven knife (221) is detachably installed on the secondary driving section (222). The locking block (229) includes a plurality of convex edges (2291) extending in the up and down direction; wherein, when the locking block (229) is in the initial state, the projection of the locking block (229) in the horizontal direction falls within the projection of the secondary driving section (222) in the horizontal direction. When the locking block (229) rotates to the working state, at least part of the convex edges (2291) protrude from the outer surface of the secondary driving section (222).

5. The cooking machine according to claim 1, characterized in that: The sum of the arc angles of the internal tooth section (2841) and the external tooth section (2851) is between 210 degrees and 330 degrees.

6. The cooking machine according to claim 1, wherein: The active cutter (211) includes a main cutter holder (2119) and a main cutting blade (2118) disposed on the main cutter holder (2119), the driven cutter (221) includes a sub-cutter holder (2219) and a sub-cutting blade (2218) disposed on the sub-cutter holder (2219), and the distance between the main cutting blade (2118) and the sub-cutting blade (2218) in the vertical direction is between 2 mm and 50 mm.

7. The cooking machine according to claim 6, wherein: The sub-cutting blade (2218) includes a first cutting edge (22181) and a second cutting edge (22182) opposite to the first cutting edge (22181).

8. The cooking machine according to claim 1, characterized in that: The ratio of the center distance between the main drive shaft (21) and the driven shaft (22) to the inner diameter of the mixing cup (11) is between 0.25 and 0.

75.

9. The cooking machine according to claim 1, characterized in that: When the driven gear (282) meshes with the internal tooth section (2841), the ratio of the rotational speed of the active cutter (211) to the rotational speed of the driven cutter (221) is between 0.25 and 1; and / or when the driven gear (282) meshes with the external tooth section (2851), the ratio of the rotational speed of the active cutter (211) to the rotational speed of the driven cutter (221) is between 0.125 and 0.

5.

10. The cooking machine according to claim 1, wherein: The chassis (12) is provided with a through hole (126) for the main drive shaft (21) and the driven shaft (22) to pass through and a boss (125) surrounding the through hole (126).

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