CN111166203A

CN111166203A - Stirring structure and food material processor

Info

Publication number: CN111166203A
Application number: CN201811331551.0A
Authority: CN
Inventors: 罗国华; 刘云祥
Original assignee: Guangdong Midea Life Electric Manufacturing Co Ltd
Current assignee: Guangdong Midea Life Electric Manufacturing Co Ltd
Priority date: 2018-11-09
Filing date: 2018-11-09
Publication date: 2020-05-19

Abstract

The invention relates to the technical field of food material processing machines, and discloses a stirring structure and a food material processing machine. The stirring structure comprises a stirring cavity, an outer stirring cutter barrel and an inner stirring cutter shaft which is rotatably arranged in the outer stirring cutter barrel, an outer stirring cutter head installation part of the outer stirring cutter barrel and an inner stirring cutter head installation part of the inner stirring cutter shaft extend into the stirring cavity, and the outer stirring cutter barrel and the inner stirring cutter shaft can respectively rotate. In actual use, outer stirring knife section of thick bamboo and interior stirring arbor rotate respectively under the drive of external input power to the outer stirring tool bit that the drive is located the stirring intracavity and interior stirring tool bit rotate respectively, and this kind of rotation respectively can change the fluid in the stirring intracavity into the turbulent flow from the laminar flow, increases outer stirring tool bit and interior stirring tool bit and the collision probability of eating the material, shortens and eats material process time, promotes and eats material crushing effect.

Description

Stirring structure and food material processor

Technical Field

The invention belongs to the technical field of food material processing machines, and particularly relates to a stirring structure and a food material processing machine.

Background

Along with the promotion of people's quality of life, the degree of popularity of various convenient food material cooking machine for example broken wall cooking machine is more and more high.

For example, at present in some food material cooking machines, be provided with host computer and reducing gear box in food material cooking machine's the frame, be provided with tool bit assembly in food material cooking machine's the cup, the host computer passes through reducing gear box and clutch and is connected with tool bit assembly to it can be high-speed rotatory in the cup to drive tool bit assembly, thereby reaches the crushing purpose of edible material.

However, such a food processor has some defects, for example, a gear arranged in the reduction gearbox is usually made of metal, so that the temperature rises during the operation of the food processor, the noise is large, the weight of the food processor is increased, and the manufacturing cost of the food processor is increased. In addition, among present edible material cooking machine, the tool bit subassembly all is including a main shaft and a plurality of tool bits of setting on main shaft, no matter how the shape and the quantity of tool bit, the turning to of whole tool bits is the same under the drive of same main shaft to the rotational speed of every tool bit is also the same, though edible material in the cup can reach certain broken wall crushing effect, nevertheless, crushing time is longer and crushing effect is not very good, thereby has influenced the drink taste to a certain extent.

Disclosure of Invention

Aiming at the defects or shortcomings in the prior art, the invention provides a stirring structure which can shorten the food material processing time and improve the food material crushing effect.

In order to achieve the above object, the present invention provides a stirring structure, which can be used for crushing and stirring food materials, for example, can be applied to food material processing machines such as a broken-wall food processing machine and a soybean milk machine, and which comprises a stirring cavity, an outer stirring cutter cylinder and an inner stirring cutter shaft, wherein one end of the outer stirring cutter cylinder is provided with an outer stirring cutter head installation part, and the other end is provided with an outer power receiving part which is coaxially connected with an outer power output end of a power transmission device to transmit power; one end of the inner stirring cutter shaft is provided with an inner stirring cutter head mounting part, and the other end of the inner stirring cutter shaft is provided with an inner power receiving part; wherein the inner stirring cutter shaft is rotatably disposed in the outer stirring cutter cylinder, and the outer stirring cutter cylinder and the inner stirring cutter shaft are respectively rotatable; wherein, interior stirring tool bit installation department is followed outer stirring tool bit installation department axial stretch out and with outer stirring tool bit installation department keeps the axial interval, interior stirring tool bit installation department with outer stirring tool bit installation department stretches into the stirring intracavity.

Through the technical scheme, because outer stirring knife section of thick bamboo can be connected with power transmission device's outer power take off end coaxial line, make outer stirring knife section of thick bamboo and interior stirring arbor rotate respectively, in-service use, outer stirring knife section of thick bamboo and interior stirring arbor rotate respectively under the drive of external input power, thereby further drive the outer stirring tool bit that is located the stirring intracavity and rotate respectively with interior stirring tool bit, and this kind is rotatory respectively can change the fluid of stirring intracavity into the turbulent flow from the laminar flow, increase outer stirring tool bit and interior stirring tool bit and the collision probability of eating the material, shorten and eat material process time, material crushing effect is eaten in the promotion.

Further, the rotation directions of the outer stirring knife and the inner stirring knife are opposite, and/or the rotating speeds of the outer stirring knife and the inner stirring knife are different.

Furthermore, the rotating speed of the outer stirring knife cylinder is less than that of the inner stirring knife shaft.

Furthermore, the rotating speed ratio i of the outer stirring knife cylinder to the inner stirring knife shaft is more than or equal to 1/5 and less than or equal to i and less than or equal to 2/3.

Further, the rotational speed ratio i is 1: 3.

Further, the inner stirring cutter shaft is arranged in the outer stirring cutter barrel in a sealing and rotating mode through an inner rotating sealing assembly.

In addition, be provided with interior stirring tool bit on the interior stirring tool bit installation department, be provided with outer stirring tool bit on the outer stirring tool bit installation department, outer stirring tool bit with keep the axial interval between the interior stirring tool bit.

Further, the axial distance between the outer stirring cutter head and the inner stirring cutter head can be adjusted.

Still further, at least one of the outer and inner stirring bits is axially adjustable in position.

Alternatively, the inner stirring shaft is axially adjustable in position relative to the outer stirring cylinder.

In addition, the axial distance L between the axially outermost contour boundary of the side of the outer stirring tip facing the inner stirring tip and the axially outermost contour boundary of the side of the inner stirring tip facing the outer stirring tip is 1 to 20 mm.

Further, the axial distance L is 2-15 mm.

Further, the axial distance L is 3-10 mm.

In addition, the outer power receiving part is a groove axially extending from the end face of the other end of the outer stirring cutter cylinder.

Further, the groove is plural and arranged at intervals in the circumferential direction.

In addition, outer stirring sword section of thick bamboo includes big internal diameter section of thick bamboo section and little internal diameter section of thick bamboo section, wherein, form the step portion between big internal diameter section of thick bamboo section with little internal diameter section of thick bamboo section, the outer step face of step portion is as outer stirring tool bit installation department, interior rotary seal subassembly sets up in big internal diameter section of thick bamboo section, and interior shaft seal butt of interior rotary seal subassembly is in on the interior step face of step portion.

Further, an external thread is formed on the outer peripheral surface of the small inner diameter cylinder section; and/or a clamping groove extending in the circumferential direction is formed on the outer surface of the outer stirring cutter barrel.

In addition, in the direction from one end of the inner stirring cutter shaft to the other end of the inner stirring cutter shaft, the inner rotating sealing assembly comprises an inner shaft seal, an inner gasket, a first inner bearing, an inner shaft sleeve and a second inner bearing, wherein the inner shaft seal, the inner gasket, the first inner bearing, the inner shaft sleeve and the second inner bearing are sleeved on the inner stirring cutter shaft.

In addition, the stirring structure still includes power transmission device, power transmission device includes power input end, outer power take off and interior power take off, wherein, outer power receiving part with outer power take off coaxial line connects, interior power receiving part with interior power take off connects.

Further, the power transmission device includes a planetary gear mechanism having a sun gear, a plurality of planetary gears, and a ring gear, wherein the ring gear serves as the outer power output end, the sun gear is provided on a drive shaft, one end of the drive shaft serves as the power input end, and the other end of the drive shaft serves as the inner power output end.

Still further, the ring gear includes a power output sleeve connected to the ring gear body provided with the toothed portion, the power output sleeve serving as the outer power output.

Still further, the power output sleeve is formed integrally with the ring gear body.

In addition, power take-off cover includes radial plate portion and axial cover portion, wherein, radial plate portion connect in the ring gear body, be formed with the bearing installation cavity in the axial cover portion, a location bearing setting on the drive shaft is in the bearing installation cavity.

Further, the axial sleeve part comprises a large-aperture sleeve section and a small-aperture sleeve section which are coaxially arranged, wherein a step surface between the large-aperture sleeve section and the small-aperture sleeve section and an inner cavity of the large-aperture sleeve section form the bearing installation cavity; and a plurality of driving bulges which are arranged at intervals in the circumferential direction and are in transmission fit with the outer stirring knife are formed on the outer circumferential surface of the small-aperture sleeve section.

In addition, the power transmission device includes a housing, wherein the sun gear, the plurality of planetary gears, and the ring gear are provided in the housing, the power output sleeve protrudes from the housing, and the drive shaft is rotatably provided on the housing and the power output sleeve through a positioning bearing.

In addition, the tooth part of the gear ring is a metal tooth part, and the gear ring body of the gear ring is a non-metal body.

Further, the tooth portion and the ring gear body are integrally injection-molded together.

Alternatively, the power transmission device includes: a box body; the central shaft can be rotatably arranged on the box body, one end of the central shaft is the internal power output end, and the other end of the central shaft is the power input end; the cylinder shaft is sleeved on the central shaft, the cylinder shaft can be rotatably arranged on the box body or can be relatively rotatably arranged on the central shaft, and one end of the cylinder shaft is the external power output end; wherein, the central shaft is connected with the cylinder shaft in a power transmission way through a power transmission structure.

Further, the power transmission structure comprises a transmission gear, a transmission belt and a transmission wheel, wherein the transmission wheel and the transmission gear are arranged on a transmission shaft, the transmission gear is meshed with the gear on the central shaft, and the transmission belt is connected between the transmission wheel and the drum shaft.

In addition, a mounting through hole is formed on a stirring cavity base plate of the stirring cavity; outer stirring knife section of thick bamboo can set up through outer rotary seal subassembly with sealed rotating in the mounting hole, outer stirring tool bit installation department is followed the mounting hole stretches out, interior stirring tool bit installation department with outer stirring tool bit installation department is located the stirring intracavity.

Furthermore, the stirring cavity chassis comprises a concave cavity and an installation convex column extending upwards from the middle bottom of the concave cavity, and the installation through hole is formed in the installation convex column.

Further, in the direction from one end of the outer stirring cutter barrel to the other end of the outer stirring cutter barrel, the outer rotary sealing assembly comprises an outer shaft seal, an outer gasket, an outer bearing and a clamp spring, wherein the outer shaft seal, the outer gasket, the outer bearing and the clamp spring are sleeved on the outer stirring cutter barrel.

Further, the installation through-hole includes big aperture section and small aperture section, big aperture section with form between the small aperture section and block the step, outer rotary seal subassembly sets up in the big aperture section, and outer shaft seal butt of outer rotary seal subassembly is in block on the step.

In addition, the invention provides a food material processor, which comprises a power device, a power transmission device and the stirring structure, wherein the power device is in power transmission connection with a power input end of the power transmission device, an outer power output end of the power transmission device is coaxially connected with the outer stirring cutter barrel, and an inner power output end of the power transmission device is in power transmission connection with the inner stirring cutter shaft.

Thus, as mentioned above, the overall quality of the food processor is significantly improved.

Further, the food material processor comprises a base assembly and a cup body assembly which is arranged on the base assembly in a picking and placing way, wherein,

the base assembly comprises the power device, and a power output end of the power device is provided with a first clutch;

the cup body assembly comprises the power transmission device and the stirring structure, and a power input end of the power transmission device is provided with a second clutch which is releasably engaged with the first clutch;

wherein the first clutch and the second clutch are engaged when the cup assembly is placed on the base assembly.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a perspective view of one perspective of a ring gear in a power transmission device in a stirring structure according to a preferred embodiment of the present invention;

FIG. 2 is a perspective view of another perspective of the ring gear of FIG. 1;

fig. 3 is a schematic sectional view of a power transmission device according to a preferred embodiment of the present invention;

fig. 4 is an exploded state view of the power transmission device of fig. 3;

fig. 5 is a cross-sectional structural schematic view of a stirring structure in a food processor according to a preferred embodiment of the present invention;

fig. 6 is a cross-sectional structural schematic view of another power transmission device according to a preferred embodiment of the invention;

FIG. 7 is another schematic cross-sectional structural view of the stirring structure shown in FIG. 6;

FIG. 8 is a perspective view of an outer blender blade cartridge in a blending configuration in accordance with a preferred embodiment of the present invention;

FIG. 9 is a perspective view of another perspective of the outer blender blade cartridge of FIG. 8;

FIG. 10 is a perspective view of the outer blender blade cartridge of FIG. 8 from a perspective providing an outer blender blade;

FIG. 11 is a perspective view of the alternate view of FIG. 10;

FIG. 12 is a schematic perspective view of a stirring structure according to a preferred embodiment of the present invention;

FIG. 13 is an exploded view of FIG. 12, wherein the corresponding rotary seal assembly is not shown;

FIG. 14 is a schematic illustration of the stir structure of FIG. 12 without showing the stir chamber base;

fig. 15 is a schematic view of a food processor according to a preferred embodiment of the present invention.

Description of reference numerals:

1-a gear ring body, 2-a toothed part, 3-a power output sleeve, 4-a radial plate part, 5-an axial sleeve part, 6-a large-aperture sleeve part, 7-a small-aperture sleeve part, 8-a driving lug, 9-a sun wheel, 10-a planet wheel, 11-a shell, 12-a driving shaft, 13-an outer stirring blade, 14-an inner stirring blade, 15-a box body, 16-a central shaft, 17-an inner power output end, 18-a power input end, 19-a barrel shaft, 20-an outer power output end, 21-a driving belt, 22-a driving wheel, 23-a driving shaft, 24-a positioning bearing, 25-an outer stirring blade barrel, 26-an outer stirring blade mounting part, 27-an outer power receiving part, 28-an inner stirring blade shaft, 29-an inner stirring blade mounting part, 30-an inner power receiving part, 31-an inner stirring tool bit, 32-an outer stirring tool bit, 33-a groove, 34-a large-inner-diameter cylinder section, 35-a small-inner-diameter cylinder section, 36-an outer step surface, 37-an inner shaft seal, 38-an inner step surface, 39-a clamping groove, 40-an inner gasket, 41-a first inner bearing, 42-a second inner bearing, 43-an inner shaft sleeve, 44-a stirring cavity chassis, 45-a mounting through hole, 46-a concave cavity, 47-a mounting convex column, 48-an outer shaft seal, 49-an outer gasket, 50-an outer bearing, 51-a clamping spring, 52-a large-diameter section, 53-a small-diameter section, 54-a blocking step, 55-a base assembly, 56-a cup body assembly, 57-a first clutch and 58-a second clutch.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to a stirring structure shown in fig. 5, 7 and 13, the stirring structure provided by the present invention comprises a stirring cavity, an outer stirring cutter cylinder 25 and an inner stirring cutter shaft 28, wherein one end of the outer stirring cutter cylinder 25 is provided with an outer stirring cutter head mounting part 26, and the other end is provided with an outer power receiving part 27 for coaxially connecting with an outer power output end of a power transmission device to transmit power; one end of the inner stirring cutter shaft 28 is provided with an inner stirring cutter head mounting part 29, and the other end is provided with an inner power receiving part 30; wherein the inner stirring cutter shaft 28 is rotatably provided in the outer stirring cutter cylinder 25, and the outer stirring cutter cylinder 25 and the inner stirring cutter shaft 28 are respectively rotatable; wherein, interior stirring tool bit installation department 29 stretches out and keeps axial interval with outer stirring tool bit installation department from outer stirring tool bit installation department axial, and interior stirring tool bit installation department 29 and outer stirring tool bit installation department stretch into the stirring intracavity.

In the technical scheme, because the outer stirring cutter cylinder can be coaxially connected with the outer power output end of the power transmission device, the outer stirring cutter cylinder and the inner stirring cutter shaft can respectively rotate, in actual use, the outer stirring cutter cylinder and the inner stirring cutter shaft respectively rotate under the driving of external input power, so as to drive the outer stirring cutter head 32 and the inner stirring cutter head 31 positioned in the stirring cavity to respectively rotate, and the respective rotation can change fluid in the stirring cavity from laminar flow to turbulent flow, increase the collision probability of the outer stirring cutter head and the inner stirring cutter head with food materials, shorten the processing time of the food materials, improve the crushing effect of the food materials, enable the stirring structure to be more compact, fully utilize the internal channel of the outer stirring cutter cylinder 25 to set the inner stirring cutter shaft 28, and further enable the axial distance between the outer stirring cutter head and the inner stirring cutter head to be more appropriate, so as to intensively crush the food materials in the stirring cavity.

Of course, in this stirring structure, the outer stirring blade cylinder may have any suitable structure, for example, in one structure, the outer stirring blade cylinder may be a circular cylinder, or in another structure, the outer stirring blade cylinder may be a square cylinder, which may be rotatably disposed on the head cover of the food cooking machine, or, when the square cylinder is rotatably disposed on the bottom wall of the stirring chamber, the square cylinder may include a cylinder section for facilitating the installation of the bearing and the sealing assembly.

Of course, in the stirring structure, the outer stirring cutter cylinder and the inner stirring cutter shaft can rotate in the same direction and at the same speed under the driving of external power, but because the outer stirring cutter cylinder and the inner stirring cutter shaft rotate respectively, fluid in the stirring cavity can be changed into turbulent flow from laminar flow, the collision probability of the outer stirring cutter head and the inner stirring cutter head with food materials is increased, the food material processing time is shortened, and the food material crushing effect is improved. Like this, can also reduce the quantity of the vortex muscle on the lateral wall in the stirring chamber of eating the material cooking machine and remove even, improve the abluent convenience in stirring chamber, promote the user from this and use good feeling.

However, in order to further improve the above beneficial effects, it is preferable that the outer stirring blade cylinder and the inner stirring blade shaft are opposite in rotation direction, and/or the outer stirring blade cylinder and the inner stirring blade shaft are different in rotation speed, and it is preferable that the outer stirring blade cylinder and the inner stirring blade shaft are opposite in rotation direction and the outer stirring blade cylinder and the inner stirring blade shaft are different in rotation speed, so that it is easier to change the fluid in the stirring cavity from laminar flow to turbulent flow, increase the collision probability of the outer stirring blade head and the inner stirring blade head with the food material, shorten the processing time of the food material, and improve the crushing effect of the food material.

Further, the rotational speed of outer stirring knife section of thick bamboo 25 can be less than the rotational speed of interior stirring arbor 28, like this, during the breakage, interior stirring arbor 28 at first rotates at a high speed and will eat material quick breakage, afterwards, eat the material because the effect of rotatory centrifugal force, most edible material can be got rid of to the peripheral region in stirring chamber, consequently, outer stirring knife section of thick bamboo 25 will be further broken to the edible material after the breakage, thereby can increase the collision probability of outer stirring tool bit and interior stirring tool bit and edible material, shorten edible material process time, promote edible material crushing effect.

Of course, the inner stirring knife shaft 28 and the outer stirring knife cylinder 25 can have appropriate rotating speeds, preferably, the rotating speed ratio i of the outer stirring knife cylinder 25 to the inner stirring knife shaft 28 is 1/5 ≤ i ≤ 2/3, and the rotating speed ratio can improve the crushing effect, so that the wall breaking rate of the food material can reach 80%. Preferably, the rotational speed ratio i is 1: 3.

Of course, when the inner stirring cutter shaft and the outer stirring cutter cylinder are arranged on the upper head of the food material processing machine, the inner stirring cutter shaft only needs to rotate in the outer stirring cutter cylinder, and sealing is not needed. However, when the outer stirring blade cylinder is disposed on the wall of the stirring chamber, the inner stirring blade shaft 28 is preferably disposed in the outer stirring blade cylinder 25 in a manner capable of rotating in a sealing manner through the inner rotating seal assembly, so that it is ensured that the food material does not leak from between the outer stirring blade cylinder and the inner stirring blade shaft.

Further, as shown in fig. 10, 11 and 13, the inner stirring bit mounting part 29 is provided with an inner stirring bit 31 to form the inner stirring blade 14, and the outer stirring bit mounting part is provided with an outer stirring bit 32 to form the outer stirring blade 13, as shown in fig. 7 and 5, the outer stirring bit 32 and the inner stirring bit 31 are axially spaced to avoid interference of the two bits when rotating, and a flow breaking region is formed between the two bits, especially in the case that the two bits are different in turning direction and rotation speed.

Of course, the axial distance between the outer stirrer bit 32 and the inner stirrer bit 31 can be configured to be non-adjustable, i.e. to always remain at a certain fixed axial distance.

Alternatively, in order to be suitable for the crushing of different food materials so that different food materials can have a good crushing effect, it is preferred that the axial distance between the outer and

inner stirring bits

32, 31 is adjustable. In this way, the axial distance between the two cutter heads can be adjusted correspondingly according to the type of the food material, so as to adaptively adjust the size of the flow breaking area between the two cutter heads. Of course, the rotary sealing of the two cutting heads needs to be ensured during adjustment.

Further, the adjustment of the axial distance between the two cutter heads can be achieved in various ways, for example, in one way, at least one of the outer stirring cutter head 32 and the inner stirring cutter head 31 can be adjusted in position in the axial direction, for example, in the height direction of the food cooking machine shown in fig. 15, the height position of at least one of the two cutter heads can be adjusted accordingly, of course, the adjustment of the height position can be achieved by proper structure, for example, by adjusting the number of the axial spacers between the outer stirring cutter head 32 and the outer stirring cutter cylinder 25.

Or, alternatively, the inner stirring shaft 28 can be axially adjusted with respect to the outer stirring blade cylinder 25, for example, the inner stirring shaft 28 includes shaft segments that are sleeved with each other, and an axial positioning structure is provided between the shaft segments, for example, an elastic pin is matched with a plurality of pin holes at different axial positions, the axial position of the inner stirring blade 31 on the inner stirring shaft 28 with respect to the outer stirring blade head 32 can be adjusted by axial push-pull, and meanwhile, the sealing performance can be ensured when the position is axially adjusted.

Further, as shown in fig. 5 and 7, in order to improve the food crushing effect, the axial distance L between the axially outermost profile boundary of the side of the outer cutter head 32 facing the inner cutter head 31 and the axially outermost profile boundary of the side of the inner cutter head 31 facing the outer cutter head may have a suitable value, for example, it is preferable that the axial distance L between the axially outermost profile boundary of the outer cutter head 32 facing the inner cutter head 31 and the axially outermost profile boundary of the inner cutter head 31 facing the outer cutter head is 1-20mm, so that the crushing effect of the food is the best in the range of the axial distance, and the wall breaking rate may reach 80%, because such an axial distance between the two cutter heads is more likely to flow in front of the two cutter heads, changing the laminar flow in the stirring cavity into the turbulent flow, increasing the collision probability of the cutter heads with the food, thereby shortening the processing time of food materials, improving the crushing effect of the food materials and being more convenient to clean. Preferably, the axial distance L is 2-15 mm. More preferably, the axial distance L is 3-10 mm. More preferably, the axial distance L is 5 mm.

In addition, in the stirring structure of the present invention, the outer power receiving part may have any suitable structure as long as the coaxial connection of the outer stirring blade cylinder 25 and the outer power output end of the power transmission device described below can be achieved to transmit power.

For example, in one form of construction, the outer power receiving portion may be a plurality of circumferentially spaced drive blocks formed on the outer peripheral surface of the outer blending cutter drum, the drive blocks being adapted to engage a plurality of circumferentially spaced recesses in the outer power take-off of the power transmission device;

for another example, as shown in fig. 8 to 11, the outer power receiving portion is a groove 33 axially extending from the end surface of the cylinder wall at the other end of the outer mixer cylinder 25, so that the groove 33 can be fitted into the driving protrusion 8 at the outer power output end of the power transmission device described below, as shown in fig. 14, to thereby achieve power transmission.

Further, as shown in the drawings, the grooves 33 are plural and arranged at intervals in the circumferential direction, so that, as shown in fig. 14, the plural grooves 33 and the plural driving projections 8 are fitted at intervals in the circumferential direction, thereby achieving more balanced and stable power transmission.

Of course, the outer beater drum 25 can also have any suitable construction, and the invention is not limited to the construction shown in the drawings. For example, in a preferred structure, as shown in fig. 5, 7, 8-11, the outer stirring blade cylinder 25 includes a large inner diameter cylinder section 34 and a small inner diameter cylinder section 35, wherein a stepped portion is formed between the large inner diameter cylinder section 34 and the small inner diameter cylinder section 35, an outer stepped surface 36 of the stepped portion serves as an outer stirring blade mounting portion, the inner rotary seal assembly is disposed in the large inner diameter cylinder section 34, and an inner rotary seal 37 of the inner rotary seal assembly abuts against an inner stepped surface 38 of the stepped portion. Thus, the inner rotary seal assembly can be mounted by the structure of the outer beater tube 25 itself, and the positioning of the inner shaft seal 37 of the inner rotary seal assembly is achieved by the inner step surface 38 of the step.

Further, in order to facilitate the installation of the outer stirring blade, as shown in fig. 8 and 9, an external thread is formed on the outer circumferential surface of the small inner diameter cylinder section 35, so that, as shown in fig. 10 and 11, the outer stirring blade head 32 can be fixedly arranged on the outer step surface 36 by a nut, but of course, the outer stirring blade head 32 can be connected to the outer stirring blade cylinder 25 by any other suitable means such as clamping, screwing or welding; and/or, a circumferentially extending clamping groove 39 is formed on the outer surface of the outer stirring cutter cylinder 25, as shown in fig. 5, so that a clamping spring 51 is conveniently installed to axially limit the outer bearing 50 and the outer stirring cutter cylinder 25 and prevent axial movement.

Of course, the inner rotary sealing component can also have various structural forms as long as the function of the rotary seal can be realized. As shown in fig. 5, in one form of construction, the inner rotary seal assembly includes an inner shaft seal 37, an inner spacer 40, a first inner bearing 41, an inner bushing 43 and a second inner bearing 42 that are nested around the inner agitator shaft 28 in a direction from one end of the inner agitator shaft 28 toward the other end of the inner agitator shaft 28. By the support of the double bearings, it is easier for the inner stirring cutter shaft 28 to stably and reliably transmit power, and at the same time, to stably and reliably support the outer stirring cutter drum 25.

In addition, as shown in fig. 5, 7, 12, 13 and 14, the stirring structure of the present invention further includes a power transmission device, which includes a power input end 18, an external power output end 20 and an internal power output end 17, wherein the external power receiving portion 27 and the external power output end 20 are coaxially connected, and the internal power receiving portion 30 and the internal power output end 17 are connected, so that after the power is transmitted to the power input end 18, the power is respectively transmitted to the external stirring blade and the internal stirring blade through the external power output end 20 and the internal power output end 17.

Of course, the power transmission device may have various forms, for example, in one configuration, as shown in fig. 3, 4 and 5, the power transmission device includes a planetary gear mechanism having a sun gear 9, a plurality of planetary gears 10 and a ring gear, wherein the ring gear serves as an external power output end, the sun gear 9 is provided on a drive shaft 12, one end of the drive shaft 12 serves as a power input end, and the other end of the drive shaft 12 serves as an internal power output end. In this way, the power received by the power input end of the driving shaft 12 is output through the gear ring and the other end of the driving shaft, the power output by the gear ring is used for transmitting to the external stirring blade, and the power output by the other end of the driving shaft is used for transmitting to the external internal stirring blade, so that the external stirring blade and the internal stirring blade respectively rotate, for example, as shown in a connection structure shown in fig. 5, because the external stirring blade and the internal stirring blade respectively rotate, the fluid in the stirring cavity can be changed into turbulent flow from laminar flow, the collision probability between the external stirring blade and the internal stirring blade and the food material is increased, the food material processing time is shortened, and the food material crushing effect is improved.

In addition, the ring gear serves as the outer power output of the planetary gear mechanism. Therefore, the ring gear may have any suitable structure according to the connection relationship with the outer power receiving portion of the outer stirring blade, for example, the ring gear may be directly a cylinder with a uniform inner diameter, and the cylinder may be connected with the outer power receiving portion of the outer stirring blade, or a ring gear holder may be connected with the outer power receiving portion of the outer stirring blade.

Alternatively, as shown in fig. 1, 2 and 3, in order to facilitate the connection of the ring gear with the external power receiving part of the external stirring blade, protect the planet wheels of the planetary gear mechanism, and mount the bearing of the driving shaft of the sun gear of the planetary gear mechanism, it is preferable that the ring gear includes a power output sleeve 3 connected with the ring gear body 1 provided with the tooth part 2, and the power output sleeve 3 serves as an external power output end, that is, one end of the ring gear body 1 is coaxially connected with the power output sleeve 3, so that the power output sleeve 3 can serve as the external power output end of the planetary gear mechanism.

Of course, it should be understood that the power take-off sleeve 3 may be connected to the ring gear body 1 by any suitable connection means, such as welding, screwing or bolting, clamping, etc.

Preferably, the power output sleeve 3 is formed integrally with the ring gear body 1, for example, when the teeth 2 and the ring gear body 1 are integrally injection-molded, the power output sleeve 3 is simultaneously injection-molded.

Of course, the power take-off sleeve 3 may have any suitable construction, mainly as an outer power take-off for a planetary gear mechanism. For example, as shown in fig. 1, fig. 2 and fig. 3, the power output sleeve 3 includes a radial plate portion 4 and an axial sleeve portion 5, wherein the radial plate portion 4 is connected to the ring gear body 1, a bearing installation cavity is formed in the axial sleeve portion 5, and a positioning bearing 24 on the driving shaft 12 is disposed in the bearing installation cavity, at this time, the radial plate portion 4 and the axial sleeve portion 5 can shield the planetary gear of the planetary gear mechanism, and the front end of the axial sleeve portion 5 can serve as an external power output end of the planetary gear mechanism.

Of course, the axial sleeve portion 5 may be a cylinder with a constant diameter, or, in order to facilitate mounting of the positioning bearing on the sun shaft, preferably, as shown in fig. 2 and 3, the axial sleeve portion 5 includes a large-diameter sleeve section 6 and a small-diameter sleeve section 7 which are coaxially arranged, wherein a step surface between the large-diameter sleeve section 6 and the small-diameter sleeve section 7 and an inner cavity of the large-diameter sleeve section 6 form a bearing mounting cavity, so that, as shown in fig. 3, one positioning bearing 24 on the driving shaft may be disposed in the bearing mounting cavity, so that an outer ring end surface of the positioning bearing 24 may abut against the step surface; the outer peripheral surface of the small-bore casing section 7 is formed with a plurality of circumferentially spaced-apart driving protrusions 8, as shown in fig. 2 and 3, so that, as shown in fig. 5, the outer power receiving portion of the outer stirring blade 13 may be a plurality of recesses adapted in shape, and the plurality of recesses and the plurality of driving protrusions 8 may cooperate to allow the ring gear of the planetary gear mechanism to transmit a part of the power of the driving shaft to the outer stirring blade, and of course, another part of the power of the driving shaft of the planetary gear mechanism will be directly transmitted to the inner stirring blade 14 through the driving shaft, as shown in a connecting structure shown in fig. 5.

Further, for the convenience of mounting, so that the power transmission device can be a separate assembly, preferably, as shown in fig. 3 and 4, the power transmission device includes a housing 11, wherein the sun gear 9, the plurality of planetary gears 10 and the ring gear are disposed in the housing 11, a power output sleeve 3 coaxially connected to one end of the ring gear body 1 protrudes from the housing 11, a drive shaft 12 is rotatably disposed on the housing 11 and the power output sleeve 3 through a positioning bearing 24, that is, one positioning bearing 24 on the drive shaft 12 is disposed in the power output sleeve 3, and the other positioning bearing 24 is disposed on the housing 11. Thus, the housing 11 may be removably attached to the stir chamber base plate 44 as described below and shown in FIGS. 7, 12 and 13. For example, in the structure of the embodiment shown in fig. 5, the housing 11 may also be clamped to the bottom of the heating plate provided with the outer stirring blade and the inner stirring blade, or connected by bolts or screws, so as to ensure the stability of the power transmission connection between the gear ring and the outer stirring blade and between the driving shaft and the inner stirring blade.

In the configuration shown in fig. 1, the ring gear teeth 2 are metal teeth, and the ring gear body 1 is a non-metal body. Because tooth portion 2 of ring gear is metal tooth portion, ring gear body 1 of ring gear is the non-metallic body, like this, metal tooth portion can ensure the ring gear as planetary gear mechanism's outer power take off end with the power transmission meshing intensity of planet wheel, and the non-metallic body then can reduce the temperature rise, simultaneously, the ring gear body of non-metallic body can reduce the combination noise that ring gear body and outside outer power receiving part junction produced when the operation, thereby after using in eating the material cooking machine, can show the whole quality that promotes eating the material cooking machine.

Of course, it should be understood that in this ring gear, the teeth 2 and the ring gear body 1 may be separate members, and each tooth on the teeth 2 may be riveted, welded, or screwed or bolted to the ring gear body 1.

Or, in order to simplify the manufacturing process difficulty, improve the processing precision and reduce the cost, preferably, the tooth part 2 and the ring gear body 1 may be integrally molded together by an insert molding process, at this time, the metal tooth will be used as the insert, and of course, the integrally molded ring gear can ensure the reliability and stability of the connection between the tooth part 2 and the ring gear body 1.

Of course, the metal teeth may be made of a metal material excellent in wear resistance and fatigue resistance, and the non-metal body may be made of a heat insulating material.

Alternatively, in another structural form of the power transmission device, as shown in fig. 6, the power transmission device includes a case 15, a center shaft 16, and a drum shaft 19, wherein the center shaft 16 is rotatably provided on the case 15, one end of the center shaft 16 is an internal power output end 17, and the other end of the center shaft 16 is a power input end 18; the cylinder shaft 19 is sleeved on the central shaft 16, the cylinder shaft 19 is rotatably arranged on the box body 15, the central shaft 16 penetrates through the cylinder shaft 19 or the cylinder shaft 19 is relatively rotatably arranged on the central shaft 16, for example, the cylinder shaft 19 is arranged on the central shaft 16 through a bearing, and one end of the cylinder shaft 19 is an external power output end 20; the central shaft 16 is connected to the drum shaft 19 in a power transmission manner through a power transmission structure.

Like this, the power that the power input end of the other end of center pin 16 received will be exported through the one end of section of thick bamboo axle 19 and center pin 16, and the power of section of thick bamboo axle 19 output is used for transmitting outside outer stirring sword, the power of the one end output of center pin 16 is used for transmitting outside interior stirring sword, thereby make outer stirring sword and interior stirring sword rotatory respectively, because this kind of rotation of outer stirring tool bit and interior stirring tool bit respectively, can change the fluid in the stirring chamber into the turbulent flow from the laminar flow, increase outer stirring tool bit and interior stirring tool bit and the collision probability of eating the material, shorten edible material process time, promote edible material crushing effect, thereby after using in eating the material cooking machine, can show the whole quality that promotes edible material cooking machine.

The external power output end 20 may be formed with a plurality of circumferentially spaced drive protrusions 8 on the outer peripheral surface of the cylindrical shaft 19. The outer power receiving portion of the outer stirring blade 13 may be a plurality of grooves of a shape fitting, and the plurality of grooves and the plurality of driving projections 8 may be engaged.

It will be appreciated, of course, that the power transmission structure may have any suitable form, for example, in one form the power transmission structure includes a drive gear (not shown) disposed within the housing 15, a belt 21 and a drive pulley 22, wherein the drive pulley 22 and drive gear are disposed on a drive shaft 23, the drive gear is in mesh with a gear on the central shaft 16, and the belt 21 is connected between the drive pulley 22 and the drum shaft 19. Thus, a part of the power received by the other end of the center shaft 16 is output through the one end of the center shaft, and the other part of the power is transmitted to the drum shaft 19 through the transmission gear, the transmission shaft 23, the transmission wheel 22 and the transmission belt 21.

Of course, in the stirring structure of the invention, the inner stirring knife and the outer stirring knife can be arranged on the cover head of the food material processing machine, and when the cover head is placed on the cup body, the inner stirring knife and the outer stirring knife extend into the stirring cavity.

Alternatively, as shown in fig. 5, 7 and 13, the agitation chamber base plate 44 of the agitation chamber is formed with a mounting through-hole 45; the outer stirring cutter cylinder 25 is rotatably and hermetically arranged in the mounting through hole 45 through an outer rotary sealing component, the outer stirring cutter head mounting part extends out of the mounting through hole 45, and the inner stirring cutter head mounting part 29 and the outer stirring cutter head mounting part are positioned in the stirring cavity. Like this, outer stirring head and interior stirring head set up on eating material cooking machine's base, change in the stability that keeps eating material cooking machine, the user operation of being more convenient for.

Further, in order to improve the stirring effect, so that the food materials around the stirring cavity can more easily flow to the stirring blades at the middle part, preferably, the stirring cavity chassis 44 comprises a concave cavity 46 and a mounting convex column 47 extending upwards from the middle bottom of the concave cavity 46, and a mounting through hole 45 is formed in the mounting convex column 47, so that the concave cavity 46 can more easily gather the food materials, and the food materials can be more conveniently crushed by the two stirring blades.

Of course, the outer rotary seal assembly may have various forms as long as it can achieve the rotary seal of the outer stirring blade cylinder 25, for example, as shown in fig. 5, the outer rotary seal assembly includes an outer shaft seal 48, an outer washer 49, an outer bearing 50 and a snap spring 51 which are sleeved on the outer stirring blade cylinder in a direction from one end of the outer stirring blade cylinder 25 to the other end of the outer stirring blade cylinder 25. The snap spring 51 can be snapped into the snap groove 39 of the outer stirring blade cylinder 25 and rotate together with the inner ring of the outer bearing 50 and the outer stirring blade cylinder.

In addition, as shown in fig. 7, in one form of construction of the mounting stud 47, the mounting through bore 45 includes a large bore section 52 and a small bore section 53, a blocking step 54 is formed between the large bore section 52 and the small bore section 53, the outer rotary seal assembly is disposed within the large bore section 52, and the outer seal 48 of the outer rotary seal assembly abuts against the blocking step 54. Therefore, the outer shaft seal 48 can be axially limited by the blocking step 54 on the mounting convex column 47, the structure is simplified, and meanwhile, the blocking step can also play a role in protecting the outer shaft seal 48.

Referring to fig. 15, the present invention further provides a food processor, such as a soymilk maker, a juice extractor, a blender or a wall breaking processor, including a power device, a power transmission device and any of the above stirring structures, wherein the power device is in power transmission connection with a power input end of the power transmission device, an outer power output end of the power transmission device is in coaxial connection with an outer stirring knife cylinder, and an inner power output end of the power transmission device is in power transmission connection with an inner stirring knife shaft. Thus, as mentioned above, the overall quality of the food processor is significantly improved.

Further, as shown in fig. 15, the food processor includes a base assembly 55 and a cup assembly 56 disposed on the base assembly 55 in a removable manner, wherein the base assembly 55 includes a power device, and a power output end of the power device is provided with a first clutch 57; the cup assembly 56 includes a power transmission device, a power input end of which is provided with a second clutch 58 releasably engaged with the first clutch 57; wherein the first clutch 57 and the second clutch 58 are engaged when the cup assembly 56 is placed on the base assembly 55. Thus, after the two clutches are engaged, the power of a power device such as a driving motor is transmitted to the outer stirring cutter barrel and the inner stirring cutter shaft through the power transmission device respectively to drive the outer stirring cutter barrel and the inner stirring cutter shaft to rotate respectively. After the food material is processed, a user can take down the cup body assembly and pour out the food material, at the moment, the two clutches are released and separated, and after the cup body assembly is placed on the base assembly again, the two clutches can be connected.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. A stirring structure is characterized by comprising a stirring cavity, an outer stirring cutter cylinder (25) and an inner stirring cutter shaft (28), wherein,

one end of the outer stirring cutter barrel (25) is provided with an outer stirring cutter head mounting part (26), and the other end is provided with an outer power receiving part (27) which is coaxially connected with an outer power output end of the power transmission device to transmit power;

one end of the inner stirring cutter shaft (28) is provided with an inner stirring cutter head mounting part (29), and the other end is provided with an inner power receiving part (30);

wherein the inner stirring shaft (28) is rotatably disposed in the outer stirring blade cylinder (25), and the outer stirring blade cylinder (25) and the inner stirring shaft (28) are rotatable, respectively;

wherein, interior stirring tool bit installation department (29) are followed outer stirring tool bit installation department axial stretch out and with outer stirring tool bit installation department keeps the axial interval, interior stirring tool bit installation department (29) with outer stirring tool bit installation department stretches into in the stirring chamber.

2. The stirring structure of claim 1, wherein the stirring structure comprises at least one of:

the structure I is as follows: the directions of rotation of the outer stirring knife cylinder (25) and the inner stirring knife shaft (28) are opposite;

the structure II is as follows: the rotating speeds of the outer stirring knife cylinder (25) and the inner stirring knife shaft (28) are different; further, the rotating speed of the outer stirring cutter barrel (25) is less than that of the inner stirring cutter shaft (28); preferably, the rotating speed ratio i of the outer stirring knife cylinder (25) to the inner stirring knife shaft (28) is more than or equal to 1/5 and less than or equal to i and less than or equal to 2/3; more preferably, the rotational speed ratio i is 1: 3.

3. The stirring structure according to claim 1, characterized in that the inner stirring shaft (28) is sealingly rotatably arranged in the outer stirring cylinder (25) by means of an inner rotary seal assembly.

4. The stirring structure of claim 3, characterized in that it comprises at least one of the following forms:

the first form: an inner stirring tool bit (31) is arranged on the inner stirring tool bit mounting part (29), an outer stirring tool bit (32) is arranged on the outer stirring tool bit mounting part, and an axial distance is kept between the outer stirring tool bit (32) and the inner stirring tool bit (31); preferably, the axial distance between the outer stirring bit (32) and the inner stirring bit (31) is adjustable; preferably, at least one of the outer (32) and inner (31) agitator bits is axially positionable or the inner agitator shaft (28) is axially positionable relative to the outer agitator drum (25); and/or the presence of a gas in the gas,

the axial distance L between the axially outermost contour boundary of one side of the outer stirring cutter head (32) facing the inner stirring cutter head (31) and the axially outermost contour boundary of one side of the inner stirring cutter head (31) facing the outer stirring cutter head is 1-20 mm; preferably, the axial distance L is 2-15 mm; preferably, the axial distance L is 3-10 mm;

the second form: the outer power receiving part is a groove (33) axially extending from the end face of the cylinder wall at the other end of the outer stirring cutter cylinder (25); preferably, the grooves (33) are plural and arranged at intervals in the circumferential direction;

the third form: the outer stirring cutter barrel (25) comprises a large inner diameter barrel section (34) and a small inner diameter barrel section (35), wherein a step part is formed between the large inner diameter barrel section (34) and the small inner diameter barrel section (35), an outer step surface (36) of the step part serves as the outer stirring cutter head mounting part, the inner rotating sealing component is arranged in the large inner diameter barrel section (34), and an inner shaft seal (37) of the inner rotating sealing component abuts against an inner step surface (38) of the step part; preferably, the first and second electrodes are formed of a metal,

an external thread is formed on the peripheral surface of the small inner diameter cylinder section (35); and/or the presence of a gas in the gas,

a clamping groove (39) extending in the circumferential direction is formed on the outer surface of the outer stirring knife cylinder (25);

form four: in the direction from one end of the inner stirring cutter shaft (28) to the other end of the inner stirring cutter shaft (28), the inner rotating sealing assembly comprises an inner shaft seal (37), an inner gasket (40), a first inner bearing (41), an inner shaft sleeve (43) and a second inner bearing (42) which are sleeved on the inner stirring cutter shaft (28).

5. Stirring structure according to claim 1, further comprising a power transmission device comprising a power input (18), an outer power output (20) and an inner power output (17), wherein the outer power receiving part (27) and the outer power output (20) are connected coaxially and the inner power receiving part (30) and the inner power output are connected.

6. Stirring structure according to claim 5, characterised in that the power transmission means comprises a planetary gear mechanism with a sun wheel (9), a number of planet wheels (10) and an annulus, wherein the annulus is the outer power take-off, the sun wheel (9) is arranged on a drive shaft (12), one end of the drive shaft (12) is the power take-off and the other end of the drive shaft (12) is the inner power take-off.

7. Stirring structure according to claim 6, characterised in that said ring gear comprises a power take-off sleeve (3) connected to a ring gear body (1) provided with teeth (2), said power take-off sleeve (3) acting as said outer power take-off.

8. Stirring structure according to claim 7, characterised in that the power take-off sleeve (3) is formed integrally with the ring gear body (1).

9. The stirring structure according to claim 7, wherein the power output sleeve (3) includes a radial plate portion (4) and an axial sleeve portion (5), wherein the radial plate portion (4) is connected to the ring gear body (1), a bearing mounting cavity is formed in the axial sleeve portion (5), and a positioning bearing (24) on the drive shaft (12) is provided in the bearing mounting cavity.

10. The stirring structure according to claim 9, wherein the axial sleeve portion (5) comprises a large-aperture sleeve section (6) and a small-aperture sleeve section (7) which are coaxially arranged, wherein a step surface between the large-aperture sleeve section (6) and the small-aperture sleeve section (7) and an inner cavity of the large-aperture sleeve section (6) form the bearing mounting cavity; and a plurality of driving bulges (8) which are arranged at intervals in the circumferential direction and are in transmission fit with the outer stirring knife are formed on the outer circumferential surface of the small-aperture sleeve section (7).

11. Stirring structure according to any of claims 7-10, wherein the power transmission means comprises a housing (11), wherein the sun wheel (9), the plurality of planet wheels (10) and the ring gear are arranged in the housing (11), the power take-off sleeve (3) protrudes from the housing (11), and the drive shaft (12) is rotatably arranged on the housing (11) and the power take-off sleeve (3) by means of a positioning bearing (24).

12. Stirring structure according to claim 6, characterised in that the toothing (2) of the ring gear is a metallic toothing, the ring gear body (1) of the ring gear being a non-metallic body; and/or the presence of a gas in the gas,

the tooth part (2) of the gear ring and the gear ring body (1) are integrally molded together in an injection mode.

13. The stirring structure according to claim 5, wherein the power transmission means includes: a case (15); the central shaft (16) is rotatably arranged on the box body (15), one end of the central shaft (16) is the internal power output end (17), and the other end of the central shaft (16) is the power input end (18); the cylinder shaft (19) is sleeved on the central shaft (16), the cylinder shaft (19) can be rotatably arranged on the box body (15) or can be relatively rotatably arranged on the central shaft (16), and one end of the cylinder shaft (19) is the outer power output end (20); wherein the central shaft (16) is in power transmission connection with the cylinder shaft (19) through a power transmission structure; preferably, the power transmission structure comprises a transmission gear, a transmission belt (21) and a transmission wheel (22), wherein the transmission wheel (22) and the transmission gear are arranged on a transmission shaft (23), the transmission gear is meshed with a gear on the central shaft (16), and the transmission belt (21) is connected between the transmission wheel (22) and the barrel shaft (19).

14. Stirring structure according to claim 1, characterized in that the stirring chamber base plate (44) of the stirring chamber is formed with mounting through holes (45);

outer stirring knife section of thick bamboo (25) can set up through outer rotary seal subassembly sealed rotation in installation through-hole (45), outer stirring tool bit installation department is followed installation through-hole (45) stretch out, interior stirring tool bit installation department (29) with outer stirring tool bit installation department is located the stirring intracavity.

15. The stirring structure of claim 13, wherein the stirring chamber base plate (44) comprises a cavity (46) and a mounting boss (47) upwardly protruding from the bottom of the cavity (46), the mounting boss (47) having the mounting through hole (45) formed therein.

16. The mixing structure according to claim 14 or 15, wherein the outer rotary seal assembly comprises an outer shaft seal (48), an outer gasket (49), an outer bearing (50) and a snap spring (51) which are sleeved on the outer mixing blade cylinder in a direction from one end of the outer mixing blade cylinder (25) to the other end of the outer mixing blade cylinder (25).

17. The stirring structure of claim 14, wherein the mounting through-hole (45) comprises a large-bore section (52) and a small-bore section (53), a blocking step (54) being formed between the large-bore section (52) and the small-bore section (53), the outer rotary seal assembly being arranged within the large-bore section (52), and an outer shaft seal (48) of the outer rotary seal assembly abutting against the blocking step (54).

18. The utility model provides a eat material cooking machine, its characterized in that, include power device, power transmission device and according to any one in claims 1-17 stirring structure, wherein, power device with power transmission device's power input end power transmission is connected, power transmission device's outer power take off end with outer stirring knife section of thick bamboo (25) coaxial line is connected, power transmission device's interior power take off end with interior stirring arbor (28) power transmission is connected.

19. The food processor of claim 18, comprising a base assembly (55) and a cup assembly (56) that is removably arranged on the base assembly (55), wherein,

the base assembly (55) comprises the power device, and a power output end of the power device is provided with a first clutch (57);

the cup body assembly (56) includes the power transmission device and the stirring structure, and a power input end of the power transmission device is provided with a second clutch (58) releasably engaged with the first clutch (57);

wherein the first clutch (57) and the second clutch (58) are engaged when the cup assembly (56) is placed on the base assembly (55).