CN113498989A

CN113498989A - Multifunctional food processor

Info

Publication number: CN113498989A
Application number: CN202110908489.2A
Authority: CN
Inventors: 林祥生; 乐佳磊; 陆铁洪
Original assignee: Ningbo Zhike Electric Appliance Technology Co ltd
Current assignee: Ningbo Zhike Electric Appliance Technology Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2021-10-15
Also published as: WO2023015612A1

Abstract

The invention discloses a multifunctional food processor which comprises a main machine seat, a stirring cup and a stirring cutter assembly, wherein the stirring cup is arranged at the upper end of the main machine seat, the stirring cutter assembly is arranged in the stirring cup, the stirring cutter assembly is connected with a motor assembly in the main machine seat, a circular hole is formed in the stirring cup, a plurality of positioning structures are uniformly distributed at the edge of the circular hole, the circular hole is used for the stirring cutter assembly to penetrate through, and a fixing structure which is matched with the positioning structures and is used for connecting the positioning structures is arranged on the stirring cutter assembly. The stirring cutter assembly is simple in structure and convenient to maintain and assemble, and the stirring cutter assembly can be designed to be detachable, is convenient to clean and install; the stirring cup and the stirring knife component can be conveniently and stably connected together, and the stirring knife component does not lose the function of processing food; the functions of processing food at low speed and high torque such as leavening, dough kneading, cooking, meat mincing, slicing, shredding and the like can be realized, and the functions of identifying different cutters can be indirectly realized; whether the stirring blade assembly is neglected or not installed in place by a user can be identified.

Description

Multifunctional food processor

Technical Field

The invention relates to the technical field of household appliances, in particular to a multifunctional food processor.

Background

Along with the higher living standard of people, the kitchen electrical appliance has the advantages of various performances, safety and reliability, product cost performance, user experience and the like. More and more users hope that the kitchen electric machine can realize blade output speed of thirty thousand revolutions to realize high-speed beating, break the wall to make own fruit juice or drink taste fine and smooth, and hope that the low-speed operation of low-speed large torque can be realized to realize functions of kneading dough, breaking meat, breaking egg white, slicing vegetables, turning dishes, frying and roasting meat, and the like.

The multi-functional food processor that exists commonly in the existing market, for example, heating broken wall machine, ordinary mixer, the function singleness that they realized, even in order to can shred functions such as section, minced meat, dough kneading, need dispose different containers and install different accessories and realize high-speed conversion into the big moment of torsion of low-speed, lead to the use installation loaded down with trivial details like this and lead to difficult washing because the knife tackle can not dismantle, and because the accessory leads to occupying too much kitchen space too much, difficult guarantor pipe, easily lose, also there is not the advantage in the cost. For example, in a multifunctional food processor or a cooking robot in the existing market, such as a soup cooker, even if a stirring knife is provided, although the requirements of users who grind at high speed and knead at ultra-low speed and high torque are well met, the cost of the whole machine is very high because the selected motor is a high-power switch reluctance motor or a brushless direct current motor and a related special matched control PCB, and if the rotating speed of the motor is increased from ten thousand to thirty thousand, the size and the cost are huge and expensive. Even so, in order to satisfy the food processing function such as cutting vegetables and shredding, an additional knife assembly needs to be configured, and still the manual removal and replacement are needed. For example, in the current multifunctional food processor or cooking robot of other manufacturers at home or abroad, a large number of or multiple sets of conversion transmission mechanism systems such as belt pulleys, gears and electronic circuits are arranged in the machine in order to convert the high speed of the motor into low speed and high torque force, so that the assembly and manufacturing cost of the product is high, the volume of the whole machine is large, and the appearance shape of the machine is limited. And is cumbersome once the machine has failed or the entire host needs to be removed after sale. Even if this kind of machine design has automatic switching mechanism of high low rotational speed, still need the manual work to change different cutters because the demand of different food processing, can't realize all food processing functions with a stirring sword, for example the machine only is furnished with the sharp stirring sword of a cross, though can realize automatic switch-over in order to realize the function of the big torsion of low rotational speed, though the motor has reverse blunt blade to knead face, the dough of kneading out is irregular not tough and chewy, the user is troublesome at such cutter of washing, and the very easy scraper hand. The cooked dishes or the fried and roasted steak can not ensure the integrity of the food and the best effect of frying and roasting. The above machines still have a serious safety problem, for example, the above multifunctional food processor cannot identify accessories, and users are easy to operate by mistake, that is, the accessories used at low speed, such as the machine and the dough kneading knife, are used at high speed to run at 20000RMP, so that the machine shakes greatly, the whole machine is damaged, and the knife flies out to cause personal accidents. Similarly, similar products available on the market are equipped with removable blade structures for cost saving, i.e. one blade holder is equipped with different blades, when the user uses the removable sharp cross stirring blade to operate at 20000RMP, even 30000RMP, it is very dangerous once the blade is detached.

In addition, even though the knife assembly is detachable, the multifunctional food processor in the market at present needs to extend a hand into the container to hold the knife and hold the cup assembly with the other hand to be detached or installed, so that the problems that the knife falls off to hurt articles or people and the like easily occur.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention aims to: a multi-functional food processor is provided.

The technical solution of the invention is as follows: the utility model provides a multifunctional food processor, includes host computer seat, stirring cup and stirring knife tackle spare, and the stirring cup is installed in the host computer seat upper end, and the stirring knife tackle spare is installed in the stirring cup, and the motor subassembly of stirring knife tackle spare in with the host computer seat is connected, the round hole that link up about having in the stirring cup, round hole border equipartition have a plurality of location structure, and the round hole supplies the stirring knife tackle spare to pass, is equipped with on the stirring knife tackle spare to match and is used for connecting location structure's fixed knot structure with location structure.

Furthermore, the positioning structures are a plurality of positioning blocks located at the edges of the circular holes, and the positioning blocks are connected with the fixing structures on the stirring knife assembly.

Furthermore, a center table is arranged at the center of the lower end of the stirring cup, the circular hole is positioned at the center of the center table, a plurality of grooves are uniformly distributed on the inner wall of the circular hole, and the positioning blocks are circumferentially distributed at the top of the center table; a positioning plate is arranged in the stirring cup, and the center boss is convexly arranged at the top of the positioning plate.

Further, an induction device or a trigger mechanism is installed on the stirring knife assembly.

Furthermore, a raised line used for blocking the stirring knife assembly is arranged in the upper end of the main machine base.

Further, the stirring cutter assembly comprises a cutter assembly and a fixing frame, the cutter assembly comprises a cutter holder, the fixing structure is a plurality of bosses uniformly distributed on the outer wall of the cutter holder, the grooves are used for the bosses to penetrate, the fixing frame is sleeved outside the cutter holder, the fixing frame is provided with through holes for the cutter holder to penetrate, the inner side of each through hole is provided with a plurality of baffle tables uniformly distributed on the circumference, gaps are formed between adjacent baffle tables, and the bosses penetrate through the gaps and are clamped at the bottoms of the baffle tables.

Furthermore, a convex ring is arranged at the top of the cutter holder, a plurality of positioning grooves with downward openings are uniformly distributed on the convex ring, the convex ring is pressed at the top of the central table, and the positioning blocks are clamped in the positioning grooves; after the cutter assembly penetrates through the circular hole of the stirring cup, the fixing frame is fixed on the outer wall of the cutter holder, and the fixing frame abuts against the bottom of the positioning plate.

Furthermore, the fixed knot constructs for a plurality of locating claws of equipartition on stirring sword subassembly upper end outer wall, and the recess supplies the locating claw to pass, and the locating claw joint is at the locating piece top, and the lug of locating piece blocks the locating claw.

Further, the stirring cutter assembly comprises an upper seat and a lower cover fixed at the lower end of the upper seat, the upper seat and the lower cover form a shell, a planetary speed change mechanism is installed in the shell, the upper end of the planetary speed change mechanism extends out of the upper seat and is connected with a transmission shaft sleeve, different cutters can be installed on the transmission shaft sleeve, and the lower end of the planetary speed change mechanism extends out of the lower cover and is connected with an upper clutch.

Furthermore, the planetary speed change mechanism comprises a primary sun wheel, a primary planet wheel connected to the upper end of the primary sun wheel, a primary speed change planet wheel support connected with the primary planet wheel, a primary planet wheel connected to the upper end of the primary speed change planet wheel support and a secondary speed change planet wheel support connected with the primary planet wheel, the upper end of the secondary speed change planet wheel support penetrates out of the upper seat, the transmission shaft is sleeved outside the upper end of the secondary speed change planet wheel support, the lower end of the primary sun wheel penetrates out of the lower cover, and the upper clutch is fixed outside the lower end of the primary sun wheel; an inner gear ring is arranged on the inner wall of the upper seat and is matched with the primary planet wheel and the primary planet wheel.

The multifunctional food processor provided by the invention has the beneficial effects that: the stirring cutter component can be designed to be detachable, so that the stirring cutter component is convenient to clean and install and use; the stirring cup and the stirring knife component can be conveniently and stably connected together; because the one-to-one cutter and the stirring cutter component are correspondingly assembled and the planetary speed change mechanism is arranged on the stirring cutter component, the condition that a user mistakenly installs the cutter can be avoided, and different cutter identification functions can be indirectly realized.

Drawings

FIG. 1 is a schematic cross-sectional view of a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a stirring cup according to a first embodiment of the present invention;

FIG. 3 is an enlarged view of area A of FIG. 2;

FIG. 4 is a schematic structural diagram of a stirring blade assembly according to a first embodiment of the present invention;

FIG. 5 is a schematic view of a tool holder according to a first embodiment of the present invention;

fig. 6 is a schematic structural view of a fixing frame according to a first embodiment of the invention;

FIG. 7 is a schematic view of the assembly of the stirring blade assembly and the stirring cup according to the first embodiment of the present invention;

FIG. 8 is an enlarged view of area B of FIG. 7;

FIG. 9 is a schematic view of the mixer blade assembly and the main housing according to the first embodiment of the present invention;

FIG. 10 is an enlarged view of area C of FIG. 9;

FIG. 11 is a schematic structural view of a stirring blade assembly according to a second embodiment of the present invention;

FIG. 12 is an exploded view of a stirring blade assembly according to a second embodiment of the present invention;

FIG. 13 is a schematic cross-sectional view of a stirring blade assembly according to a second embodiment of the present invention;

fig. 14 is a schematic structural view of a primary transmission planet carrier according to a second embodiment of the invention;

FIG. 15 is a schematic structural view of an upper base according to a second embodiment of the present invention;

fig. 16 is another structural schematic view of an upper seat according to a second embodiment of the present invention;

FIG. 17 is a schematic structural diagram of a lower cover according to a second embodiment of the present invention;

FIG. 18 is a schematic view of the assembly of the stirring blade assembly and the stirring cup according to the second embodiment of the present invention;

FIG. 19 is an enlarged view of area D of FIG. 18;

FIG. 20 is a schematic view of the assembly of the stirring blade and different cutting tools according to the second embodiment of the present invention;

FIG. 21 is an overall cross-sectional view of a second embodiment of the present invention;

FIG. 22 is a schematic view of the mixing blade assembly and the main frame of the second embodiment of the present invention;

fig. 23 is an enlarged schematic view of region E in fig. 22.

Shown in the figure: 1-main chassis, 1.1-convex strip, 2-stirring cup, 21-central platform, 211-round hole, 2111-groove, 212-locating block, 2121-inclined plane, 2122-convex block, 22-locating plate, 3-stirring knife component, 31-knife component, 311-knife seat, 3111-convex platform, 3112-convex ring, 31121-locating slot, 32-fixing frame, 321-through hole, 322-baffle platform, 3221-slope, 3222-baffle plate, 323-notch, 324-magnet fixing hole, 325-first convex rib, 33-knife seat sealing ring, 34-locating claw, 35-upper seat, 351-internal gear ring, 36-lower cover, 361-magnet hole, 362-second convex rib, 37-transmission shaft sleeve, 38-primary sun gear, 381-planet gear, 39-primary planet gear, 3A-primary variable speed gear support, 3A 1-first clamping slot, 3A 2-second clamping slot, 3B-primary variable speed gear support, 3C-secondary variable speed planet gear support, 3C 1-transmission shaft, 3D-first bearing, 3E-first skeleton oil blanket, 3F-second bearing, 3G-second skeleton oil blanket, 3H-third bearing, 3I-fourth bearing, 3J-upper seat sealing washer, 4-motor, 5-lower clutch, 6-upper clutch, 7-induction magnet, 8-butterfly rod, 9-fried dish sword, 10-stir a sword, 11-blade disc.

Detailed Description

For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting features are described in conjunction with the accompanying drawings of the present invention:

the first embodiment is as follows: as shown in fig. 1-10, a multi-functional food processor, including host computer seat 1, stirring cup 2 and stirring knife tackle spare 3, stirring cup 2 is installed in host computer seat 1 upper end, stirring knife tackle spare 3 is installed in stirring cup 2, and stirring knife tackle spare 3 is connected with the motor subassembly in the host computer seat 1, the round hole 211 that link up about having one in the stirring cup 2, round hole 211 border equipartition has a plurality of location structure, round hole 211 supplies stirring knife tackle spare 3 to pass, be equipped with on the stirring knife tackle spare 3 and match with location structure and be used for connecting location structure's fixed knot structure.

As shown in fig. 1, the motor assembly includes a motor 4 and a lower clutch 5, an output shaft at an upper end of the motor 4 is connected to the lower clutch 5, and the lower clutch 5 is connected to an upper clutch 6 fixed to a lower end of the agitating blade assembly 3.

The positioning structures are three positioning blocks 212 positioned at the edge of the circular hole 211, and the positioning blocks 212 are connected with the fixing structure on the stirring knife component 3. The center of the lower end of the stirring cup 2 is provided with a center platform 21, the round hole 211 is positioned at the center of the center platform 21, three grooves 2111 are uniformly distributed on the inner wall of the round hole 211, and the positioning blocks 212 are circumferentially distributed at the top of the center platform 21; the lower end of the stirring cup 2 is internally provided with a positioning plate 22, and the central platform 21 is convexly arranged at the top of the positioning plate 22. The positioning block 212 has a projection 2122 protruding upward at one end and a slant 2121 at the other end. The stirring cutter component 3 comprises a cutter component 31 and a fixed frame 32, the cutter component 31 comprises a cutter holder 311, the fixed structure is three bosses 3111 uniformly distributed on the outer wall of the cutter holder 311, a groove 2111 is used for the boss 3111 to pass through, the fixed frame 32 is sleeved outside the cutter holder 311, the fixed frame 32 is provided with a through hole 321 used for the cutter holder 311 to pass through, the inner side of the through hole 321 is uniformly provided with three blocking platforms 322 in a circumferential manner, a gap 323 is formed between the adjacent blocking platforms 322, and the boss 3111 is clamped at the bottom of the blocking platform 322 after passing through the gap 323.

As shown in fig. 4, a tool post seal ring 33 is fixed to the upper end of the tool post 311, and the tool post seal ring 33 performs a sealing function after the stirring blade assembly 3 is connected to the stirring cup 2.

As shown in FIG. 6, each stop 322 has a ramp 3221 at one end. The bottom of each retaining platform 322 has a retaining plate 3222 for retaining the boss 3111.

As shown in fig. 5, the top of the tool holder 311 has a protruding ring 3112, a plurality of positioning grooves 31121 with downward openings are uniformly distributed on the protruding ring 3112, the protruding ring 3112 presses on the top of the center table 21, and the positioning block 212 is inserted into the positioning groove 31121. After the knife assembly 31 passes through the circular hole 211 of the blending cup 2, the fixing frame 32 is fixed on the outer wall of the knife holder 311, and the fixing frame 32 abuts against the bottom of the positioning plate 22, as shown in fig. 7.

When the stirring device is installed, the knife assembly 31 passes through the circular hole 211 of the stirring cup 2, and the positioning groove 31121 on the knife holder 311 moves to the positioning block 212 on the stirring cup 2; then, the fixing frame 32 is sleeved on the tool holder 311, and the boss 3111 on the tool holder 311 passes through the notch 323 of the fixing frame 32; after holding the fixing frame 32 and rotating the fixing frame 32, the boss 3111 is moved to the bottom of the blocking platform 322, and the stirring blade assembly 31 is completely installed, as shown in fig. 7 and 8. Because the mutual restriction of the fixed frame 32 and the tool apron 311, the whole stirring tool assembly 3 can not move up and down, and the whole fixed frame 32 can not fall off from the tool assembly 31 by combining the principle of the reverse acting force for stirring food, so that the whole stirring tool assembly 3 can be stably installed on the stirring cup 2.

The stirring blade assembly 3 is provided with a sensing device or a triggering mechanism, for example, the stirring blade assembly 3 is provided with a sensing magnet 7, as shown in fig. 6, the bottom of the fixing frame 32 is provided with a plurality of magnet fixing holes 324, and the sensing magnet 7 is fixed in the magnet fixing holes 324. Install tongue tube (not shown in the figure) on the main frame seat 1, as long as in effectual effect within range, the reed tube can be triggered to response magnet 7 to with signal transmission electronic control board in order to carry out relevant instruction, can discern whether the user neglected loading or not install stirring sword subassembly 3 and target in place and the unable operation of machine is in order to avoid the food in the stirring cup 2 to reveal, perhaps whole stirring sword subassembly 3 flies away when high-speed operation, perhaps the machine damages in order to guarantee the safety of user and machine.

As shown in fig. 6, 9 and 10, the outer side of the fixing frame 32 has a plurality of first ribs 325, and the upper end of the main housing 1 has a protruding strip 1.1 for blocking the first ribs 325. After the convex strip 1.1 blocks the first convex strip 325 of the fixing frame 32, the stirring blade assembly 3 is further fixed, and the structure is more stable and reliable.

Example two: as shown in fig. 11-23. The second embodiment is the same as the first embodiment in that the main base 1 and the mixing cup 2 have the same structure, except that:

as shown in fig. 11, 18 and 19, the fixing structure is three positioning claws 34 uniformly distributed on the outer wall of the upper end of the stirring blade assembly 3, the groove 2111 is used for the positioning claw 34 to pass through, the positioning claw 34 is clamped on the top of the positioning block 212, the protrusion 2122 of the positioning block 212 blocks the positioning claw 34, and the side surface of the positioning claw 34 is attached to the protrusion 2122, so as to prevent the motor 4 from rotating and being incapable of processing the processed food. When the stirring tool assembly 3 is installed, the stirring tool assembly passes through the circular hole 211 of the stirring cup 2 from outside to inside, and the positioning claw 34 passes through the groove 2111; then, when the knife assembly 31 is rotated, the positioning pawl 34 moves along the inclined surface 2121 of the positioning block 212 to the top of the positioning block 212, and the lug 2122 blocks the positioning block 212, and the installation is completed.

As shown in fig. 11-13, the stirring blade assembly 3 includes an upper seat 35 and a lower cover 36 fixed at the lower end of the upper seat 35, the upper seat 35 and the lower cover 36 form a housing, the positioning pawl 34 is disposed on the outer wall of the upper seat 35, a planetary speed change mechanism is installed in the housing, the upper end of the planetary speed change mechanism extends out of the upper seat 35 and is connected with a transmission shaft sleeve 37, and the lower end of the planetary speed change mechanism extends out of the lower cover 36 and is connected with the upper clutch 6. The planetary speed change mechanism comprises a primary sun gear 38, a primary planet gear 39 connected to the upper end of the primary sun gear 38, a primary speed change planet gear support 3A connected with the primary planet gear 39, a primary planet gear 3B connected to the upper end of the primary speed change planet gear support 3A, and a secondary speed change planet gear support 3C connected with the primary planet gear 3B, wherein the upper end of the secondary speed change planet gear support 3C penetrates out of the upper seat 35, a transmission shaft sleeve 37 is sleeved outside the upper end of the secondary speed change planet gear support 3C, the lower end of the primary sun gear 38 penetrates out of the lower cover 36, and the upper clutch 6 is fixed outside the lower end of the primary sun gear 38. The inner wall of the upper seat 35 is provided with an inner gear ring 351, and the inner gear ring 351 is matched with the primary planet wheels 3B and the primary planet wheels 39.

The primary sun gear 38 is provided with a transmission rod 381, the lower end of the transmission rod 381 penetrates through the lower cover 36, the upper clutch 6 is fixed at the lower end of the transmission rod 381, and the upper end of the transmission rod 381 is sleeved with a first bearing 3D and a first framework oil seal 3E; the secondary variable-speed planet wheel bracket 3C is provided with a transmission shaft 3C1, the upper end of the transmission shaft 3C1 penetrates out of the upper seat 35, a transmission shaft sleeve 37 is sleeved outside the transmission shaft 3C1, and the lower end of the transmission shaft 3C1 is sleeved with a second bearing 3F and a second framework oil seal 3G; the upper end of the primary sun gear 38 is sleeved with a third bearing 3H, and the lower end of the secondary variable-speed planet gear support 3C is sleeved with a fourth bearing 3I. The lower end and the upper end of the primary speed-changing planet wheel carrier 3A are respectively provided with a first clamping groove 3A1 and a second clamping groove 3A2 for the third bearing 3H and the fourth bearing 3I to be clamped in.

When the transmission device works, the output shaft of the motor 4 drives the lower clutch 5 to transmit power to the upper clutch 6, the upper clutch 6 is fixedly riveted on the primary sun gear 38, namely the rotating speed of the primary sun gear 38 is consistent with the rotating speed output by the motor 4, and the output rotating speed of the motor 4 is output after primary speed reduction and secondary speed reduction by utilizing the principle of planet gear transmission, so that the purpose of speed change is achieved.

The stirring blade assembly 3 is provided with a sensing device or a triggering mechanism, for example, an induction magnet 7 is arranged on the stirring blade assembly 3. As shown in fig. 17, the lower end of the lower cover 36 has a plurality of magnet holes 361, and the induction magnet 7 is fixed in the magnet holes 361.

As shown in fig. 11, an upper seat seal ring 3J is sleeved outside the upper end of the upper seat 35, the upper seat seal ring 3J contacts with the convex inner wall of the center table 21, and the upper seat seal ring 3J plays a role in sealing.

As shown in fig. 22 and 23, the outer side of the lower cover 36 has a plurality of second ribs 362, and when the knife assembly 31 is connected to the main housing 1, the upper end of the main housing 1 has a protruding strip 1.1 for blocking the second ribs 362. Due to the reaction principle during food processing, the whole stirring knife assembly 3 cannot be loosened from the stirring cup 2, and in addition, due to the limiting effect of the convex ribs 1.1 of the main machine base 1 on the convex ribs of the lower cover 36, the whole stirring knife assembly 3 can be stably fixed on the stirring cup 2.

Different detachable cutters can be mounted on the transmission shaft sleeve 37, the cutters can be butterfly rods 8, cooking cutters 9, dough stirring cutters 10, cutter heads 11 and the like shown in fig. 20, the cutters are detachably fixed on the transmission shaft sleeve 37, due to the existence of a planetary speed change mechanism in the stirring cutter assembly 3, the output speed of the motor 4 can be greatly reduced, high-torque low-speed operation is realized, and various functions of processing food at low speed and high torque, such as hair-breaking, dough kneading, cooking, meat mincing, slicing, shredding and the like, can be realized.

Of course, the above is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, for example, the positioning slot and the positioning block of the first embodiment are exchanged, the positioning slot is disposed on the top of the center table, the positioning block is disposed on the upper end of the tool holder, for example, the positioning block is disposed on the bottom of the positioning plate of the blending cup, and make corresponding modifications to other structures, for example, two-stage deceleration of the planetary transmission mechanism of the second embodiment is adjusted to one stage, three stages or more stages, for example, the deceleration function of the planetary transmission mechanism is changed to acceleration, for example, the detachable connection of the knife assembly and the stirring cup is changed to non-detachable connection, for example, the lower clutch 5 and the upper clutch connected with the motor are replaced by a pulley, a gear, etc., and all the simple modifications and equivalent structural changes using the contents of the description and the drawings of the present invention are included in the scope of the present invention.

Claims

1. The utility model provides a multi-functional food processor, includes host computer seat, stirring cup and stirring knife tackle spare, and the stirring cup is installed in the host computer seat upper end, and the stirring knife tackle spare is installed in the stirring cup, and the motor element of stirring knife tackle spare in with the host computer seat is connected its characterized in that: the stirring cup is internally provided with a round hole which is communicated up and down, a plurality of positioning structures are uniformly distributed on the edge of the round hole, the round hole is used for the stirring cutter component to pass through, and the stirring cutter component is provided with a fixing structure which is matched with the positioning structures and is used for connecting the positioning structures.

2. The multi-functional food processor of claim 1, wherein: the positioning structures are a plurality of positioning blocks located at the edges of the circular holes, and the positioning blocks are connected with the fixing structures on the stirring knife assembly.

3. A multi-functional food processor according to claim 2, wherein: the center of the lower end of the stirring cup is provided with a center table, the circular hole is positioned in the center of the center table, a plurality of grooves are uniformly distributed on the inner wall of the circular hole, and the positioning blocks are circumferentially distributed on the top of the center table; a positioning plate is arranged in the stirring cup, and the center boss is convexly arranged at the top of the positioning plate.

4. The multi-functional food processor of claim 1, wherein: and the stirring knife assembly is provided with an induction device or a trigger mechanism.

5. The multi-functional food processor of claim 1, wherein: the upper end of the main machine base is internally provided with a raised line used for blocking the stirring knife assembly.

6. A multi-functional food processor according to claim 3, wherein: the stirring cutter assembly comprises a cutter assembly and a fixing frame, the cutter assembly comprises a cutter holder, the fixing structure is a plurality of bosses uniformly distributed on the outer wall of the cutter holder, the grooves are used for the bosses to pass through, the fixing frame is sleeved outside the cutter holder, the fixing frame is provided with through holes for the cutter holder to pass through, the inner side of each through hole is circumferentially and uniformly distributed with a plurality of baffle platforms, gaps are formed between the adjacent baffle platforms, and the bosses are clamped at the bottoms of the baffle platforms after passing through the gaps.

7. The multi-functional food processor of claim 6, wherein: the top of the cutter holder is provided with a convex ring, a plurality of positioning grooves with downward openings are uniformly distributed on the convex ring, the convex ring is pressed on the top of the central table, and the positioning blocks are clamped into the positioning grooves; after the cutter assembly penetrates through the circular hole of the stirring cup, the fixing frame is fixed on the outer wall of the cutter holder, and the fixing frame abuts against the bottom of the positioning plate.

8. A multi-functional food processor according to claim 3, wherein: the fixing structure is a plurality of positioning claws uniformly distributed on the outer wall of the upper end of the stirring cutter assembly, the grooves are used for the positioning claws to pass through, the positioning claws are clamped at the top of the positioning block, and the convex blocks of the positioning block the positioning claws.

9. A multi-functional food processor according to claim 8, wherein: the stirring cutter assembly comprises an upper seat and a lower cover fixed at the lower end of the upper seat, the upper seat and the lower cover form a shell, a planetary speed change mechanism is installed in the shell, the upper seat extends out of the upper end of the planetary speed change mechanism and is connected with a transmission shaft sleeve, and the lower end of the planetary speed change mechanism extends out of the lower cover and is connected with an upper clutch.

10. A multi-functional food processor according to claim 9, wherein: the planetary speed change mechanism comprises a primary sun wheel, a primary planet wheel connected to the upper end of the primary sun wheel, a primary speed change planet wheel support connected with the primary planet wheel, a primary planet wheel connected to the upper end of the primary speed change planet wheel support and a secondary speed change planet wheel support connected with the primary planet wheel, the upper end of the secondary speed change planet wheel support penetrates out of an upper seat, a transmission shaft sleeve is sleeved outside the upper end of the secondary speed change planet wheel support, the lower end of the primary sun wheel penetrates out of a lower cover, and an upper clutch is fixed outside the lower end of the primary sun wheel; an inner gear ring is arranged on the inner wall of the upper seat and is matched with the primary planet wheel and the primary planet wheel.