CN217365536U - Multifunctional food processor - Google Patents

Abstract

The utility model discloses a multifunctional food processor belongs to food processor technical field, the computer comprises a host computer, smash cup and motor, it includes cup and bowl cover to smash the cup, be equipped with the crushing piece by motor drive in the cup, be equipped with speed change gear between the pivot of motor and the crushing piece, speed change gear includes the gearbox, the input shaft, output shaft and transmission structure, the transmission structure includes the first output piece and the second output piece that the rotational speed is different, the output shaft has primary importance and second place, speed change gear is still including the lower magnet of location setting and locate the last magnet on the output shaft, lower magnet repels with last magnet and sets up and makes the output shaft receive the pre-compaction effort. The repulsive force between the upper magnet and the lower magnet is utilized to enable the output shaft to be stabilized at the first position or the second position when in work, the working stability of the output shaft is improved, and the prepressing acting force can also enable the output shaft to be reset in time. The upper magnet is not contacted with the lower magnet, so that the friction of the output shaft during rotation can be reduced, and the friction noise is favorably reduced.

Description

Multifunctional food processor

Technical Field

The utility model relates to a food preparation machine technical field especially relates to a multifunctional food preparation machine.

Background

Nowadays, food processing machines such as food processors, juicers, and soymilk makers are increasingly popular among consumers as new and upgraded consumer products in kitchen appliances. The existing food processor generally comprises a main machine and a processing cup, wherein a motor is arranged in the main machine, a crushing cutter is arranged in the processing cup, and the motor drives the crushing cutter to rotate so as to achieve the processing purposes of cutting and crushing materials.

In order to expand the functional uses of food processors, some food processors employ a base configured with a plurality of processing cups for performing different functions, such as a thick glass cup for performing wall breaking and heating, a dry grinding cup with inner steel and outer plastic for performing dry grinding, a food processing cup for performing meat grinding, vegetable shredding, slicing, and the like. The mode of disposing a plurality of processing cups need consume more material, and the user need select corresponding processing cup for use according to concrete user demand when using, if the processing cup chooses the mistake then makes the machine impaired easily, in addition, the structure of many processing cups is difficult for accomodating to the user, is unfavorable for improving user's use and experiences. Some food preparation machines in addition then satisfy the rotational speed requirement of different processing purposes through the mode that configuration speed change mechanism widened the motor output rotational speed scope, and this kind of mode generally need set up the structure of shifting and make output piece can with the rotation piece cooperation of difference and export different rotational speeds, but, because the concrete structure of the structure of shifting is comparatively complicated, is unfavorable for rationally simplifying speed change gear's inner structure, and then is unfavorable for rationally reducing manufacturing cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the prior art, the utility model provides a multifunctional food processor, which makes the output shaft receive the prepressing acting force capable of automatically resetting through the lower magnet and the upper magnet which are not in contact.

In order to realize the technical purpose, the utility model provides a multifunctional food processor, which comprises a main machine, a grinding cup and a motor, wherein the grinding cup comprises a cup body and a cup cover, a grinding piece driven by the motor is arranged in the cup body, a speed change device is arranged between a rotating shaft of the motor and the grinding piece, the speed change device comprises a gear box, an input shaft which can be in transmission fit with the rotating shaft, an output shaft which can be in transmission fit with the grinding piece and a transmission structure arranged between the input shaft and the output shaft, the transmission structure comprises a first output piece and a second output piece which are different in rotating speed and distributed up and down, the output shaft is provided with a first position in transmission fit with the first output piece and a second position in transmission fit with the second output piece, the speed change device further comprises a lower magnet arranged in a positioning mode and an upper magnet arranged on the output shaft, and the lower magnet and the upper magnet are arranged in a repelling mode to enable the output shaft to be subjected to pre-pressing acting force.

Preferably, the speed changing device includes a lower spring disposed between the lower magnet and the upper magnet, the lower spring being in a compressed state.

Preferably, the transmission structure comprises a sun gear, a planet gear externally engaged with the sun gear, an inner gear ring internally engaged with the planet gear, a planet carrier driven by the planet gear and a transmission sleeve arranged on the planet carrier, the first output member is the sun gear, the second output member is the transmission sleeve, and the lower magnet is positioned in the sun gear.

Preferably, the inner wall of the sun gear is provided with a step surface higher than the output shaft, and the lower magnet is arranged between the step surface and the top surface of the output shaft.

Preferably, the sun gear is provided with an inner tooth hole, the inner wall of the transmission sleeve is provided with transmission teeth, the output shaft is provided with a first tooth-shaped portion matched with the inner tooth hole and a second tooth-shaped portion matched with the transmission teeth, and the first tooth-shaped portion is located below the second tooth-shaped portion.

Preferably, the upper magnet is sleeved on the output shaft and located below the first tooth-shaped portion.

Preferably, the output shaft is provided with a protruding part located between the first tooth-shaped part and the second tooth-shaped part, and the outer diameter of the protruding part is larger than the outer diameters of the first tooth-shaped part and the second tooth-shaped part.

Preferably, the crushing piece comprises a hollow cutter shaft, a top block which is movably arranged in the cutter shaft up and down, an upper spring which is abutted against the top block, a linkage sleeve which is arranged below the top block, a shaft sleeve which is detachably sleeved outside the cutter shaft and a blade which is arranged on the shaft sleeve, the shaft sleeve is provided with at least two lugs which can extend into the cutter shaft and abut against the top block to vertically position the top block, and the height positions of the lugs on the inner wall of each shaft sleeve are different; or the crushing pieces comprise cutter shafts and blades arranged outside the cutter shafts, the cutter shafts are provided with transmission holes matched with the output shafts, and the crushing pieces are provided with at least two crushing pieces, and the height positions of the transmission holes in the cutter shafts in the crushing pieces are different.

Preferably, the bottom surface of the cup cover is provided with a positioning bearing, and the top end of the cutter shaft is provided with a positioning column capable of being inserted into the positioning bearing.

Preferably, the crushing cup comprises a cup shell, the cup body and the speed change device are arranged in the cup shell, and the speed change device is positioned at the bottom of the cup body.

After the technical scheme is adopted, the utility model has the advantages of as follows:

1. the utility model provides a multi-functional food preparation machine, speed change gear's transmission structure has set up two output pieces that the rotational speed is different and distribute from top to bottom, and the output shaft has different output rotational speeds at the primary importance when coordinating with first output piece transmission and at the secondary importance when coordinating with second output piece transmission, can rationally enlarge speed change gear's rotational speed output scope, makes its rotational speed requirement that can satisfy different processing methods. The lower magnet that the location set up with locate the last magnet on the output shaft and repel each other the setting, utilize the repulsion force between last magnet and the lower magnet to make the output shaft receive the pre-compaction effort to make the output shaft can stably keep in a certain position at the during operation, be favorable to improving the job stabilization nature of output shaft, this pre-compaction effort also can make the output shaft in time move up automatically under free state and reset, so that the better meeting job requirement of output shaft. Because last magnet and magnet adopt the non-contact mode setting down can make the output shaft receive the pre-compaction effort, can alleviate the friction that the output shaft received when rotating, be favorable to reducing the friction noise, be favorable to improving user's use and experience.

2. Go up and set up the lower spring that is in compression state between magnet and the lower magnet, can increase the pre-compaction effort that the output shaft received through lower spring, be favorable to further improving the structural stability of output shaft when a certain position, also be favorable to making the output shaft can shift up fast under free state and reset.

3. First output spare is the sun gear, and the second output spare is the driving sleeve, and first output spare and second output spare in the rational setting transmission structure make the output shaft have higher rotational speed when being in the primary importance, have lower rotational speed when being in the second place, guarantee that the rotational speed scope of output shaft can be better satisfy different processing requirements.

4. Lower magnet is located between the step face of sun gear inner wall and the top surface of output shaft, makes down magnet receive vertical location through step face and output shaft top surface to make down magnet can keep the position stable, be favorable to guaranteeing down the stability of the effort of repelling between magnet and the last magnet.

5. The output shaft sets up the first profile of tooth portion of inner tooth hole complex with the sun gear and with the driving gear complex second profile of tooth portion of driving sleeve, and the output shaft is in the primary importance when first profile of tooth portion and inner tooth hole complex, and the output shaft is in the second place when second profile of tooth portion and driving gear complex, rationally sets up the concrete structure of output shaft, ensures that the output shaft can effectually cooperate and possess corresponding rotational speed with sun gear or driving sleeve.

6. Go up the magnet cover and locate on the output shaft and be located the below of first profile of tooth portion, the concrete position that sets up of magnet in the reasonable setting makes magnet holding position stable, also can rationally reduce magnet and down the distance between the magnet to magnet and the lower magnet repel each other effort between can rationally increase, and then the pre-compaction effort that the reasonable increase output shaft received.

7. The output shaft sets up the great bulge of external diameter between two profile of tooth portions, realizes preventing the mesh of cluster tooth through the bulge, avoids the meshing of second profile of tooth portion and the internal tooth hole of sun gear or the meshing of the driving tooth of first profile of tooth portion and driving sleeve, is favorable to improving the stability of output shaft at the during operation.

8. The high position of lug is different on each axle sleeve inner wall in the crushing piece, and lug and kicking block conflict on the different axle sleeves make the vertical position that the kicking block kept also different, and the kicking block conflicts with the output shaft and makes the vertical position that the output shaft located also different to make the output shaft can keep at primary importance or second place according to the vertical position of kicking block, make the rotational speed of output shaft correspond mutually with the structure of axle sleeve, guarantee that speed change gear's output rotational speed can satisfy corresponding processing requirement.

The crushing pieces can be arranged in a plurality of numbers, the height positions of the transmission holes in the cutter shafts in the crushing pieces are different, so that the output shaft can be kept at a first position or a second position according to the difference of the transmission holes, the rotating speed of the output shaft corresponds to the structure of the crushing pieces, and the output rotating speed of the speed changing device can meet the corresponding processing requirements.

9. The bottom surface of bowl cover sets up location bearing, and the top of arbor sets up the reference column, and organism during operation, the reference column inserts and makes the top of arbor receive radial positioning in the location bearing, effectively improves the dynamic balance nature of rubbing crusher at the during operation, can improve the job stabilization nature of rubbing crusher, is favorable to reducing noise.

10. The grinding cup adopts a structure of combining the cup body with the cup shell, the speed change device is arranged in the cup shell and positioned at the bottom of the cup body, the structure of the grinding cup is reasonably arranged, the speed change device can be completely positioned in the grinding cup and hidden, and the appearance attractiveness of the grinding cup is improved.

Drawings

FIG. 1 is a diagram of a food processor according to an embodiment;

FIG. 2 is an exploded view of a transmission in a food processor according to an embodiment;

FIG. 3 is a block diagram of the transmission in a food processor according to one embodiment with the output shaft in a first position;

FIG. 4 is a block diagram of the transmission in a food processor according to an embodiment with the output shaft in a second position;

FIG. 5 is an enlarged view at B in FIG. 4;

FIG. 6 is a schematic diagram of an output shaft of a transmission in a food processor according to an embodiment;

FIG. 7 is a schematic diagram of the transmission mechanism of the food processor of the third embodiment when the output shaft is in the second position.

In the figure, 100-a main machine, 200-a crushing cup, 210-a cup body, 220-a cup cover, 230-a cup shell, 240-a positioning bearing, 300-a motor, 310-a rotating shaft, 320-a lower transmission joint, 400-a crushing piece, 410-a cutter shaft, 420-a top block, 430-an upper spring, 440-a linkage sleeve, 450-a shaft sleeve, 460-a blade, 470-a positioning column, 500-a speed changing device, 510-a gearbox, 511-an upper box, 512-a lower box, 513-a boss, 520-an input shaft, 530-an output shaft, 531-a first tooth-shaped part, 532-a second tooth-shaped part, 533-a convex part, 540-a lower magnet, 550-an upper magnet, 560-an upper transmission joint, 571-a sun gear, 5711-an inner tooth hole, 5712-step surface, 572-lower carrier, 573-planet, 5731-lower gear, 5732-upper gear, 574-upper carrier, 575-fulcrum shaft, 576-internal gear, 577-driving sleeve, 580-driving head, 590-lower spring.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments. It is to be understood that the following terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like are used in an orientation or positional relationship relative to one another only as illustrated in the accompanying drawings and are used merely for convenience in describing and simplifying the invention, and do not indicate or imply that the device/component so referred to must have a particular orientation or be constructed and operated in a particular orientation and therefore should not be considered as limiting the invention.

Example one

As shown in fig. 1 to 6, a multifunctional food processor provided by the embodiment of the present invention comprises a main machine 100, a grinding cup 200 and a motor 300, wherein the grinding cup 200 comprises a cup body 210 and a cup cover 220, the cup body 210 is provided with a grinding member 400 driven by the motor 300, a speed changing device 500 is provided between the rotating shaft 310 of the motor 300 and the grinding member 400, the speed changing device 500 comprises a gearbox 510, an input shaft 520 in transmission fit with the rotating shaft 310, an output shaft 530 in transmission fit with the grinding member 400, and a transmission structure provided between the input shaft 520 and the output shaft 530. The transmission structure includes a first output member and a second output member which are distributed vertically and have different rotation speeds, the output shaft 530 has a first position which is in transmission fit with the first output member and a second position which is in transmission fit with the second output member, the speed change device 500 further includes a lower magnet 540 which is positioned and arranged and an upper magnet 550 which is arranged on the output shaft 530, and the lower magnet 540 and the upper magnet 550 are arranged in a repulsion manner to enable the output shaft 530 to receive pre-pressing acting force.

The transmission structure of the speed change device is provided with two output members which have different rotating speeds and are distributed up and down, so that the first position of the output shaft in transmission fit with the first output member and the second position of the output shaft in transmission fit with the second output member have different output rotating speeds, the rotating speed output range of the speed change device can be reasonably expanded, and the rotating speed requirements of different processing modes can be met. The lower magnet that the location set up with locate the last magnet on the output shaft and repel each other the setting, utilize the repulsion force between last magnet and the lower magnet to make the output shaft receive the pre-compaction effort to make the output shaft can stably keep in a certain position at the during operation, be favorable to improving the job stabilization nature of output shaft, this pre-compaction effort also can make the output shaft in time move up automatically under free state and reset, so that the better meeting job requirement of output shaft. Because last magnet and magnet adopt the non-contact mode setting down can make the output shaft receive the pre-compaction effort, can alleviate the friction that the output shaft received when rotating, be favorable to reducing the friction noise, be favorable to improving user's use and experience.

In this embodiment, the motor 300 is disposed inside the main body 100, the rotating shaft 310 is vertically disposed, and the top end thereof is sleeved with the lower transmission joint 320. Referring to fig. 2, 3 and 4, the transmission case 510 includes an upper case 511 and a lower case 512 fixed together to form an accommodating cavity, the input shaft 520 is rotatably mounted on the lower case 512 through a bearing, and a lower end of the input shaft 520 extends out of the transmission case 510 and is sleeved with an upper transmission joint 560 capable of being in transmission fit with the lower transmission joint 320. The gearing structure of the transmission 500 is provided in a receiving cavity of the gearbox 510.

The transmission structure comprises a sun gear 571, a planet gear 573, a planet carrier, an annular gear 576 and a transmission sleeve 577, wherein the sun gear 571 is sleeved at the top end of the input shaft 520, the planet carrier comprises an upper planet carrier 574 and a lower planet carrier 572 which are vertically distributed, the planet gear 573 is erected between the upper planet carrier 574 and the lower planet carrier 572 through a supporting shaft 575, the top end of the supporting shaft 575 is inserted on the upper planet carrier 574, and the bottom end of the supporting shaft 575 is inserted on the lower planet carrier 572. The planetary gear 573 includes a lower gear portion 5731 and an upper gear portion 5732 disposed up and down, the lower gear portion 5731 having an outer diameter larger than that of the upper gear portion 5732, the lower gear portion 5731 externally meshing with the sun gear 571, and the upper gear portion 5732 internally meshing with the ring gear 576. Ring gear 576 is provided on the inner wall of upper case 511, and ring gear 576 is preferably formed integrally with upper case 511. The transmission sleeve 577 is fixed on the upper planet carrier 574 and positioned outside the output shaft 530, the transmission sleeve 577 and the sun gear 571 are distributed up and down, and the axial leads of the transmission sleeve 577 and the sun gear 571 are overlapped. The upper case 511 is provided with a hollow boss 513 protruding upwards, the output shaft 530 is rotatably erected at the boss 513 via a bearing, the output shaft 530 can move up and down relative to the boss 513, the top end of the output shaft 530 extends upwards out of the boss 513 and is sleeved with a transmission head 580, and the upper part of the transmission sleeve 577 is located in the boss 513. When the machine body works, the rotating shaft 310 of the motor 300 drives the input shaft 520 to rotate through the lower transmission joint 320 and the upper transmission joint 560, the input shaft 520 drives the sun gear 571 to rotate, the sun gear 571 drives the planet carrier to rotate through the planet gear 573, the planet carrier drives the transmission sleeve 577 to rotate, and through the speed reduction effect of the planet gear 573 and the planet carrier, the rotating speed of the transmission sleeve 577 is lower than that of the sun gear 571.

In this embodiment, the sun gear 571 is set as a first output member of the transmission structure, and the transmission sleeve 577 is set as a second output member of the transmission structure. When the output shaft 530 is at the first position, the output shaft 530 is driven by the sun gear 571, and because the rotating speed of the sun gear 571 is higher, the output shaft 530 can drive the crushing piece 400 to rotate at a high speed, so that the food processing requirements of wall breaking, dry grinding and the like are met. When the output shaft 530 is at the second position, the output shaft 530 is driven by the transmission sleeve 577, and because the rotating speed of the transmission sleeve 577 is low, the output shaft 530 can drive the crushing piece 400 to rotate at a low speed, so that the requirements of food processing such as meat mincing, shredding, slicing and the like are met.

In this embodiment, the speed changing device 500 is provided in the grinding cup 200. To install the speed change device 500, the pulverizing cup 200 further includes a cup housing 230, the cup body 210 and the speed change device 500 are disposed in the cup housing 230, and the speed change device 500 is located at the bottom of the cup body 210. Specifically, the cup body 210 and the cup shell 230 preferably adopt a structure with an inner steel and an outer plastic, the bottom of the cup body 210 is provided with a thick film heating plate, and an electric coupling structure is arranged between the grinding cup 200 and the main machine 100, so that the main machine 100 can supply power to the grinding cup 200. The upper portion of the transmission 500 extends into the cup 210, and sealing structures for waterproofing are provided between the cup 210 and the cup shell 230, between the cup 210 and the transmission 500, and inside the transmission 500.

Referring to fig. 6, in order to achieve the purpose that the output shaft 530 can be in transmission fit with the sun gear 571 to achieve high-speed output and in transmission fit with the transmission housing 577 to achieve low-speed output, the output shaft 530 is provided with a first tooth-shaped portion 531 in transmission fit with the sun gear 571 and a second tooth-shaped portion 532 in transmission fit with the transmission housing 577, and since the sun gear 571 is located below the transmission housing 577, the first tooth-shaped portion 531 is located below the second tooth-shaped portion 532. Specifically, the sun gear 571 is arranged in a hollow manner, the inner tooth holes 5711 are formed in the upper portion of the sun gear 571, the first tooth-shaped portion 531 is in transmission fit with the inner tooth holes 5711, and the first tooth-shaped portion 531 comprises a plurality of convex teeth which are distributed at intervals along the circumferential direction of the output shaft 530. The inner wall of the transmission sleeve 577 is provided with transmission teeth distributed at intervals along the circumferential direction, the second tooth-shaped part 532 is matched with the transmission teeth, and the second tooth-shaped part 532 comprises a plurality of convex teeth distributed at intervals along the circumferential direction of the output shaft 530. To prevent tooth cross, the output shaft 530 is provided with a projecting portion 533 between the first and second tooth profiles 531, 532, the outer diameter of the projecting portion 533 being larger than the outer diameters of the first and second tooth profiles 531, 532.

In this embodiment, the lower magnet 540 is positioned in the sun gear 571, and the upper magnet 550 is sleeved on the output shaft 530 and located below the first tooth 531. Referring to fig. 5, a stepped surface 5712 higher than the output shaft 530 and lower than the internal tooth holes 5711 is provided on an inner wall of the sun gear 571, and the lower magnet 540 is provided between the stepped surface 5712 and the top surface of the output shaft 530, so that the lower magnet 540 is vertically positioned and kept stable. In order to make the upper and lower magnets repel each other, the upper magnet 550 in this embodiment is disposed with its S-pole facing upward and its N-pole facing downward, and the lower magnet 540 is disposed with its N-pole facing upward and its S-pole facing downward.

Referring to fig. 1, the crushing member 400 includes a hollow cutter shaft 410, a top block 420 movably disposed in the cutter shaft 410 up and down, an upper spring 430 abutting against the top block 420, a linkage sleeve 440 disposed below the top block 420, a sleeve 450 detachably sleeved outside the cutter shaft 410, and a blade 460 disposed on the sleeve 450, wherein the top block 420, the upper spring 430, and the linkage sleeve 440 are disposed inside the cutter shaft 410, the upper spring 430 is disposed above the top block 420, an upper end of the upper spring 430 abuts against a step on an inner wall of the cutter shaft 410, and a lower end thereof is sleeved on the top block 420 and abuts against the top block 420. The linkage sleeve 440 and the transmission head 580 realize detachable transmission matching through a non-circular shaft hole matching structure, and a through hole for the ejector block 420 to pass through is formed in the linkage sleeve 440, so that the ejector block 420 can extend downwards to abut against the transmission head 580.

In order to make the crushing member 400 cooperate with the speed changing device 500 to achieve the purpose of different output rotation speeds, the shaft sleeves 450 are provided with at least two protrusions, the inner walls of the shaft sleeves 450 are provided with protrusions which can extend into the cutter shaft 410 and abut against the top block 420 to vertically position the top block 420, and the height positions of the protrusions on the inner walls of the shaft sleeves 450 are different. The top block 420 is vertically positioned by the collision of the protrusion block and the top block 420, and the output shaft 530 is vertically positioned by the collision between the top block 420 and the transmission head 580, so that the output shaft 530 is stably located at a first position in transmission fit with the sun gear 571 or a second position in transmission fit with the transmission sleeve 577.

In order to improve the stability of the crushing element 400 during operation, the bottom surface of the cap 220 is provided with a positioning bearing 240, and the top end of the knife shaft 410 is provided with a positioning column 470 which can be inserted into the positioning bearing 240. Specifically, a concave hole for installing the positioning bearing 240 is formed in the bottom surface of the cup cover 220, the positioning bearing 240 is arranged in the concave hole, the outer ring of the positioning bearing 240 is fixedly arranged, and the inner ring of the positioning bearing 240 is rotatably arranged. When the machine body works, the positioning column 470 is inserted into the positioning bearing 240 to radially position the top end of the cutter shaft 410, so that the dynamic balance of the crushing piece 400 during working is effectively improved, and the working stability of the crushing piece 400 can be improved.

When the machine body works, a proper shaft sleeve 450 is selected and sleeved outside the cutter shaft 410, a convex block on the inner wall of the shaft sleeve 450 extends into the cutter shaft 410 to be abutted against the top block 420, then the crushing piece 400 is installed in the cup body 210, the cup cover 220 is covered, and the positioning column 470 is inserted into the positioning bearing 240. The mixing cup with the material is placed on the main body 100, and the driving head 580 is inserted into the linkage sleeve 440 and collides with the top block 420 to move the output shaft 530 downwards to the first position shown in fig. 3 or the second position shown in fig. 4 against the repulsive force between the upper magnet 550 and the lower magnet 540.

As shown in fig. 3, when the output shaft 530 is in the first position, the first tooth 531 is in driving engagement with the inner tooth hole 5711 of the sun gear 571, and the second tooth 532 is disengaged from the driving teeth of the driving sleeve 577. After the machine body is started, the rotating shaft 310 of the motor 300 drives the input shaft 520 to rotate, the input shaft 520 drives the transmission structure to rotate, the sun gear 571 of the transmission structure drives the output shaft 530 to rotate at a high speed through the matching of the inner tooth holes 5711 and the first tooth-shaped portions 531, and the output shaft 530 drives the crushing piece 400 to rotate at a high speed through the matching of the transmission head 580 and the linkage sleeve 440, so that the requirements of wall breaking, dry grinding and other food processing are met. After the machine body finishes working and opens the cup cover 220, the repulsive force between the upper magnet 550 and the lower magnet 540 can drive the output shaft 530 to move upwards automatically for resetting.

As shown in fig. 4, when the output shaft 530 is in the second position, the second tooth portion 532 is in driving engagement with the driving teeth of the driving sleeve 577, and the first tooth portion 531 is disengaged from the internal tooth hole 5711. After the machine body is started, the rotating shaft 310 of the motor 300 drives the input shaft 520 to rotate, the input shaft 520 drives the transmission structure to rotate, the transmission sleeve 577 of the transmission structure drives the output shaft 530 to rotate at a low speed through the matching of the transmission teeth and the second tooth-shaped part 532, and the output shaft 530 drives the crushing piece 400 to rotate at a low speed through the matching of the transmission head 580 and the linkage sleeve 440, so that the requirements of food processing such as meat grinding, shredding, slicing and the like are met. During the machining process, the output shaft 530 is stabilized at the second position by the repulsive force between the upper magnet 550 and the lower magnet 540.

It is understood that ring gear 576 may also be separately molded and secured within transmission case 510.

It will be appreciated that the provision of the first and second toothed portions 531, 532 and the projecting portion 533 on the output shaft 530 may be eliminated, and that the output shaft 530 may be provided with only one toothed portion which drivingly engages the sun gear 571 when the output shaft 530 is in the first position and the drive sleeve 577 when the output shaft 530 is in the second position.

It is understood that the upper magnet 550 may be disposed with its N-pole facing upward and S-pole facing downward, and in this case, the lower magnet 540 may be disposed with its S-pole facing upward and N-pole facing downward.

It is understood that the number of bosses 450 may be set to a reasonable number of two, three, etc.

It will be appreciated that the configuration of the blades 460 on each hub 450 may vary to meet different machining requirements.

Example two

In this embodiment, in order to enable the output shaft 530 to be located at the first position or the second position when the machine body works, at least two crushing pieces 400 are provided, each crushing piece 400 includes a cutter shaft and a blade arranged outside the cutter shaft, the cutter shaft of each crushing piece is provided with a transmission hole matched with the transmission head 580, and the height positions of the transmission holes on the cutter shafts are different. Specifically, the transmission hole of the cutter shaft of the crushing member 400 for performing wall breaking, dry grinding and other processing is located at a lower position, so that the output shaft 530 can move downwards to be located at a first position in transmission fit with the sun gear 571. The drive hole of the cutter shaft of the shredder 400 for mincing, shredding, slicing, etc. is located at a higher position so that the output shaft 530 can be located at a second position in driving engagement with the drive housing 577.

The other structures of the second embodiment are the same as those of the first embodiment, and are not described in detail here.

It will be appreciated that the specific number of size reduction members 400 may be provided in other reasonable numbers, such as two, three, etc.

It will be appreciated that the configuration of the blades on each shredder 400 may vary to meet different processing requirements.

EXAMPLE III

Referring to fig. 7, in this embodiment, in order to enable the output shaft 530 to be located at the second position more stably during operation and to be able to move upwards to return to the original position after the operation at the first position is completed, the speed changing device 500 further includes a lower spring 590 disposed between the lower magnet 540 and the upper magnet 550, and the lower spring 590 is in a compressed state. The pre-pressing acting force on the output shaft 530 is increased through the lower spring 590, the structural stability of the output shaft 530 in the second position is further improved, and the stability of the output shaft 530 driving the crushing piece 400 is improved. In addition, after the output shaft 530 is in the first position state, the output shaft 530 can be better driven to move upwards and return through the action of the lower spring 590 for restoring the deformation and the repulsive force between the two magnets.

The other structures of the third embodiment are the same as those of the first embodiment, and are not described in detail here.

It is understood that the third embodiment can be combined with the second embodiment.

It is understood that the bottom end of the lower spring 590 may be disposed in contact with the lower magnet 540.

It is understood that the top end of the lower spring 590 may be disposed in contact with the upper magnet 550.

In addition to the above preferred embodiments, the present invention has other embodiments, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope defined by the appended claims.

Claims (10)

1. A multifunctional food processor comprises a host, a grinding cup and a motor, wherein the grinding cup comprises a cup body and a cup cover, a grinding piece driven by the motor is arranged in the cup body, a speed change device is arranged between a rotating shaft of the motor and the grinding piece, the speed change device comprises a gearbox, an input shaft matched with the rotating shaft in a transmission mode, an output shaft matched with the grinding piece in a transmission mode and a transmission structure arranged between the input shaft and the output shaft, the transmission structure is characterized in that the transmission structure comprises a first output piece and a second output piece which are different in rotating speed and distributed up and down, the output shaft is provided with a first position matched with the first output piece in a transmission mode and a second position matched with the second output piece in a transmission mode, the speed change device further comprises a lower magnet arranged in a positioning mode and an upper magnet arranged on the output shaft, and the lower magnet and the upper magnet are arranged in a repelling mode to enable the output shaft to receive prepressing acting force.

2. A multi-function food processor as defined in claim 1, wherein said speed changing means comprises a lower spring disposed between a lower magnet and an upper magnet, the lower spring being in a compressed state.

3. A multi-function food processor as defined in claim 1, wherein the drive structure comprises a sun gear, planetary gears externally engaged with the sun gear, an annular gear internally engaged with the planetary gears, a planetary carrier driven by the planetary gears, and a drive sleeve provided on the planetary carrier, the first output member being the sun gear, the second output member being the drive sleeve, and the lower magnet being positioned in the sun gear.

4. The multi-functional food processor of claim 3, wherein the inner wall of the sun gear has a stepped surface higher than the output shaft, and the lower magnet is disposed between the stepped surface and the top surface of the output shaft.

5. The multi-functional food processor as defined in claim 3, wherein the sun gear has an internal tooth hole, the driving sleeve has a driving tooth on an inner wall thereof, the output shaft has a first tooth-shaped portion engaged with the internal tooth hole and a second tooth-shaped portion engaged with the driving tooth, and the first tooth-shaped portion is located below the second tooth-shaped portion.

6. The multi-function food processor of claim 5, wherein the upper magnet is mounted on the output shaft below the first tooth.

7. A multi-function food processor as defined in claim 5, wherein the output shaft is provided with a protrusion between the first and second tooth forms, the protrusion having an outer diameter greater than the outer diameters of the first and second tooth forms.

8. The multifunctional food processor as claimed in claim 1, wherein the crushing member comprises a hollow cutter shaft, a top block movably disposed in the cutter shaft up and down, an upper spring abutting against the top block, a linkage sleeve disposed below the top block, a sleeve detachably fitted outside the cutter shaft, and a blade disposed on the sleeve, the sleeve is provided with at least two projections which are disposed on inner walls of the sleeve and can extend into the cutter shaft to abut against the top block to vertically position the top block, and the projections on the inner walls of the sleeve are different in height; or the crushing pieces comprise cutter shafts and blades arranged outside the cutter shafts, the cutter shafts are provided with transmission holes matched with the output shafts, and the crushing pieces are provided with at least two crushing pieces, and the height positions of the transmission holes in the cutter shafts in the crushing pieces are different.

9. The multifunctional food processor as claimed in claim 8, wherein the bottom surface of the cup cover is provided with a positioning bearing, and the top end of the knife shaft is provided with a positioning column which can be inserted into the positioning bearing.

10. A multi-function food processor as defined in claim 1, wherein the grinding cup includes a cup housing, the cup body and the speed change mechanism being disposed within the cup housing and the speed change mechanism being located at a bottom of the cup body.

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