Food processor convenient to use

Abstract

The utility model discloses a food processor convenient to use, and relates to the field of life electric appliances, the food processor comprises a main machine and a cup body assembly, a motor and a reduction gearbox are arranged in the main machine, the reduction gearbox comprises a rotatable inner gear ring, a sun gear, a planet gear and a connector, a motor shaft is in transmission connection with the connector, a one-way bearing is arranged between the connector and the motor shaft, and the cup body assembly is arranged in the cup body assembly. The motor shaft has a first rotating direction and a second rotating direction, the motor shaft is in the first rotating direction, the limiting structure is separated from the inner gear ring, and the motor shaft drives the connector to rotate synchronously through the one-way bearing; when the motor shaft is in the second transmission direction, the limiting structure limits rotation of the inner gear ring, the motor shaft drives the connector to rotate through the planet wheel, the steering and torque change of the connector can be achieved only through one limiting structure and the one-way bearing, the size of the whole machine in the axial direction can be reduced, and cost is reduced. The condition that food materials are easy to shake and topple during processing due to overhigh gravity center caused by overhigh axial height of the whole machine is avoided, and the stability of food material processing is improved.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a user-friendly food processing machine. Background Technology

[0002] Existing food processors typically include a main unit with a built-in motor and a detachable cup assembly located on top of the main unit. When using the food processor, the user places the ingredients into the cup, and the motor drives the mixing components inside the cup to rotate to process the ingredients. However, users may process different types of ingredients. For example, when making soy milk, a higher speed and lower torque are required for the mixing components. Similarly, when kneading dough or grinding flour, a higher torque and lower speed are required. However, most existing food processors can only process one type of ingredient. Users need to purchase additional models to process different types of ingredients. To solve this problem, Chinese utility model patent CN201220563868.9 discloses a cooking mixer that uses a gearbox and multiple one-way bearings between the motor shaft and the connector to output different speeds and torques when the motor rotates forward and backward. However, because this model uses multiple one-way bearings, the requirements for the one-way bearings are particularly high when the machine needs to output higher torque, which can easily cause damage to the one-way bearings. This also makes the overall structure of the machine more complex, especially increasing the axial dimension of the machine, resulting in a higher center of gravity. During the food processing process, the machine will generate significant vibration and noise, and may even tip over, seriously affecting the user experience. Utility Model Content

[0003] The purpose of this utility model is to provide a convenient food processing machine to solve the problem that existing food processing machines with multiple one-way bearings in the main unit cannot increase the output of greater torque when they are used to achieve forward and reverse rotation output of different speeds, and the center of gravity of the whole machine is too high, which makes it easy to generate vibration and noise during food processing.

[0004] To achieve the above objectives, this utility model provides a user-friendly food processing machine, including a main unit and a detachable cup assembly located above the main unit. The main unit contains a motor and a gearbox connected to the motor for transmission. The gearbox includes a rotatable internal gear ring, a sun gear located on the internal gear ring and fixed to the motor shaft, planetary gears meshing between the sun gear and the internal gear ring, and a connector connected to the planetary gears. The motor shaft is connected to the connector for transmission, and a one-way bearing is provided between the connector and the motor shaft. The main unit also has a limiting structure that prevents and limits the rotation of the internal gear ring. The motor shaft has a first rotation direction and a second rotation direction. When the motor shaft is in the first rotation direction, the limiting structure disengages from the internal gear ring, and the motor shaft drives the connector to rotate synchronously via the one-way bearing. When the motor shaft is in the second transmission direction, the limiting structure prevents and limits the rotation of the internal gear ring, and the motor shaft drives the connector to rotate via the planetary gears.

[0005] This application incorporates a reduction gearbox connected to the motor drive within the main unit. This allows the motor's high output speed to be reduced in speed before being output to the mixing component, significantly increasing the torque output of the mixing component. This enables it to process difficult-to-mix ingredients, such as dough and grinding, meeting user needs. Simultaneously, the motor shaft has both a first and a second rotation direction, driving the connector to rotate in both directions, and consequently, the mixing component itself. This improves the uniformity of mixing and processing efficiency, enhancing the user experience.

[0006] Furthermore, with the motor shaft in the first rotation direction, the limiting structure disengages from the internal gear ring. The motor shaft drives the connector to rotate synchronously via a one-way bearing. That is, when the motor shaft drives the sun gear to rotate in the first rotation direction, because the limiting structure does not limit the internal gear ring, the sun gear drives the planetary gears and the internal gear ring to rotate at the same speed and in the same direction. All components rotate at the same speed as the motor shaft. At this time, the one-way bearing is locked to the motor shaft, so the motor shaft also drives the connector to rotate synchronously at the same speed and in the same direction via the one-way bearing, achieving low torque and high speed output to meet the user's requirements for food pulverization. The proposed solution involves a limiting structure that prevents the internal gear ring from rotating when the motor shaft is in the second rotation direction. The motor shaft drives the sun gear to rotate in the second direction. Due to the stopping effect of the internal gear ring, the rotational speed of the sun gear is reduced by the planetary gears and then output to the connector. Simultaneously, the motor shaft can rotate relative to the connector using a one-way bearing, thus achieving a high-torque, low-speed output from the connector. This meets the user's requirements for food processing, such as kneading and grinding, and achieves multi-functionality, eliminating the need to purchase two different models to suit different food processing needs, thereby improving the user experience. Furthermore, compared to existing methods that use multiple one-way bearings to achieve torque variation in the connector, this application utilizes planetary gears to achieve a larger reduction ratio and greater torque output, and uses a limiting structure for more stable and reliable operation. This reduces the use of one-way bearings and improves the reliability of torque transmission. Furthermore, the change of the connecting head direction and torque can be achieved through only a limiting structure and a one-way bearing, making the structure simpler and more reliable. This helps to improve the compactness of the overall structure, especially by reducing the axial dimension of the machine. This avoids the problem of the machine's center of gravity being too high due to excessive axial height, which could cause vibration or even tipping during food processing, thus improving the stability of food processing and making it easier for users to store the machine.

[0007] In a preferred embodiment of a user-friendly food processing machine, the motor includes a housing, the top of which has a mounting cavity for accommodating a gearbox, and an internal gear ring is rotatably disposed within the mounting cavity.

[0008] By providing a mounting cavity at the top of the housing to accommodate the gearbox, and with the internal gear ring rotatably positioned within this cavity, the internal gear ring is effectively limited in its installation. This ensures that the internal gear ring can only rotate within the mounting cavity, improving its rotational stability and preventing radial displacement that could lead to overall transmission failure. Simultaneously, the housing not only secures the motor but also limits the movement of the internal gear ring, offering greater versatility. This eliminates the need for additional structural components to fix the internal gear ring, further simplifying the overall machine structure, reducing its axial dimensions, and enhancing operational stability.

[0009] In a preferred embodiment of a user-friendly food processing machine, the sidewall of the mounting cavity is provided with inwardly extending vertical ribs, and multiple vertical ribs are provided and spaced apart circumferentially along the sidewall of the mounting cavity, with an oil storage groove formed between two adjacent vertical ribs.

[0010] By inwardly extending vertical ribs on the sidewall of the mounting cavity, with multiple ribs spaced circumferentially along the sidewall, the internal gear ring can be radially limited after installation. Compared to directly limiting the internal gear ring through the cavity wall, the vertical ribs significantly reduce the contact area between the internal gear ring and the mounting cavity, thereby reducing friction and resulting in smoother rotation and reduced energy loss. Furthermore, an oil reservoir is formed between adjacent vertical ribs, allowing lubricating oil to be added for lubrication, further enhancing the smoothness of rotation.

[0011] In a preferred embodiment of a user-friendly food processing machine, the internal gear ring includes a mating portion disposed within the mounting cavity and a limiting portion disposed above the mating portion and protruding from the mounting cavity, wherein the limiting portion engages with a limiting structure to prevent rotation.

[0012] By configuring the internal gear ring to include a mating part located within the mounting cavity and a limiting part located above the mating part and protruding from the mounting cavity, the internal gear ring can connect and engage with the mounting cavity through the mating part, allowing it to rotate stably within the mounting cavity. At the same time, the limiting part can engage with the limiting structure to prevent rotation, thereby limiting the rotation of the internal gear ring and ensuring that the rotation and anti-rotation of the internal gear ring do not interfere with each other, thus improving the overall stability of the machine operation.

[0013] In a preferred embodiment of a user-friendly food processing machine, the outer wall of the internal gear ring is provided with an outwardly extending anti-rotation rib, and the limiting structure includes a pin and a limiting motor, which can drive the pin to lock or disengage from the anti-rotation rib.

[0014] By setting the limiting structure to include a pin and a limiting motor, the limiting motor can drive the pin to lock or disengage from the anti-rotation rib. When the user is using the food processor, if the motor shaft is in the first rotation direction, the limiting motor drives the pin to disengage from the anti-rotation rib, allowing the motor shaft to drive the connector to rotate synchronously. At the same time, if the motor shaft is in the second rotation direction, the limiting motor drives the pin to lock with the anti-rotation rib, thereby preventing the internal gear ring from rotating and allowing the motor shaft to rotate relative to the connector. The operation of the whole machine is more intelligent, and the locking or disengagement of the limiting structure and the internal gear ring can be achieved without manual adjustment, improving the user experience.

[0015] In a preferred embodiment of a user-friendly food processing machine, the outer wall of the internal gear ring is provided with a concave anti-rotation groove, and an anti-rotation rib is provided within the anti-rotation groove.

[0016] By providing a concave anti-rotation groove on the outer wall of the internal gear ring, and placing the anti-rotation rib within the groove, the following advantages are achieved: First, the pin can be inserted into the anti-rotation groove during reciprocating motion. The anti-rotation rib then engages with the pin as the internal gear ring rotates, thus preventing and limiting the rotation of the internal gear ring. Simultaneously, the pin engages with the anti-rotation groove in the axial direction, further limiting the axial position of the internal gear ring and ensuring its stability, thereby improving its reliability. Second, the anti-rotation rib is concealed, preventing it from protruding from the outer surface of the internal gear ring, which would result in a larger overall radial dimension and greater space requirements, thus contributing to a more compact overall structure.

[0017] In a preferred embodiment of a user-friendly food processing machine, the outer wall of the inner gear ring is provided with a plurality of toothed grooves arranged circumferentially thereon, and the limiting structure includes a ratchet pawl that engages with the toothed grooves.

[0018] By providing multiple circumferentially arranged tooth grooves on the outer wall of the internal gear ring, and including a ratchet pawl that engages with the tooth grooves in the limiting structure, when the motor shaft is in the first rotation direction, the ratchet pawl only abuts against the outer surface of the external gear ring, allowing the internal gear ring to rotate smoothly. At the same time, when the motor shaft is in the second rotation direction, the ratchet pawl engages with the tooth grooves, thereby achieving circumferential anti-rotation of the internal gear ring. The limiting structure is simple and reliable, which helps to reduce production costs.

[0019] In a preferred embodiment of a user-friendly food processing machine, the top of the motor shaft is further provided with a transmission head, and the connector is provided with an active part surrounding the outside of the transmission head.

[0020] By adding a transmission head at the top of the motor shaft and an active part surrounding the transmission head, users can replace different cup components with either the transmission head or the connecting head to engage with different ingredients. This further expands the applicability of the food processor, meets different user needs, and enhances the user experience. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0022] Figure 1 This is a cross-sectional view of a food processing machine according to one embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the motor and gearbox, etc., in one embodiment of the present invention;

[0024] Figure 3This is a cross-sectional view of the motor and other components such as the gearbox when the motor shaft is in the first rotation direction in one embodiment of the present invention.

[0025] Figure 4 for Figure 3 Enlarged view of section A;

[0026] Figure 5 for Figure 3 Enlarged view of section B;

[0027] Figure 6 This is a cross-sectional view of the motor and other components such as the gearbox when the motor shaft is in the second rotation direction in one embodiment of the present invention.

[0028] Figure 7 for Figure 6 Enlarged view of section C;

[0029] Figure 8 This is a schematic diagram of the internal gear ring in one embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the structure of the motor and gearbox, etc., in another embodiment of the present invention;

[0031] Figure 10 for Figure 9 Enlarged view of section D in the middle.

[0032] List of components and reference numerals:

[0033] 1-Cup body assembly; 2-Main unit; 3-Motor; 31-Housing shell; 311-Mounting cavity; 312-Ring rib; 3121-First ring rib; 3122-Second ring rib; 32-Motor shaft; 4-Reduction gearbox; 41-Planetary gear; 42-Sun gear; 43-Internal gear ring; 431-Anti-rotation groove; 432-Anti-rotation rib; 433-Limiting part; 434-Matching part; 435-Gear groove; 44-One-way bearing; 5-Limiting structure; 51-Limiting motor; 52-Pin; 53-Ratchet pawl; 54-Spring; 55-Limiting plate; 6-Connector; 61-Driven part; 62-Driven part; 7-Transmission head. Detailed Implementation

[0034] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0035] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0036] like Figures 1 to 10 As shown, this utility model provides a convenient food processing machine, including a main unit 2 and a detachable cup assembly 1 located above the main unit 2. The main unit 2 contains a motor 3 and a reduction gearbox 4 that is driven by the motor 3. The reduction gearbox 4 includes a rotatable internal gear ring 43, a sun gear 42 located on the internal gear ring 43 and fixed to the motor shaft 32 of the motor 3, planet gears 41 meshing between the sun gear 42 and the internal gear ring 43, and a connector 6 connected to the planet gears 41. The motor shaft 32 is driven by the connector 6. A one-way bearing 44 is provided between the connector 6 and the motor shaft 32. The main unit 2 is also provided with a limiting structure 5 that can stop the rotation of the internal gear ring 43. The motor shaft 32 has a first rotation direction and a second rotation direction. When the motor shaft 32 is in the first rotation direction, the limiting structure 5 is disengaged from the internal gear ring 43, and the motor shaft 32 drives the connector 6 to rotate synchronously through the one-way bearing 44. When the motor shaft 32 is in the second transmission direction, the limiting structure 5 stops the rotation of the internal gear ring 43, and the motor shaft 32 drives the connector 6 to rotate through the planetary gear 41.

[0037] This application incorporates a reduction gearbox 4 within the main unit 2, which is connected to the motor 3 for transmission. This allows the motor 3 to output a relatively high rotational speed, which is then reduced in speed by the reduction gearbox 4 before being output to the mixing component. This significantly increases the torque output of the mixing component, enabling it to process difficult-to-mix ingredients such as dough and grinding, thus meeting user needs. Simultaneously, the motor shaft 32 has both a first and a second rotation direction, driving the connector 6 to rotate in both directions, thereby achieving two-directional rotation of the mixing component. This improves the uniformity of mixing ingredients and processing efficiency, enhancing the user experience.

[0038] Furthermore, with the motor shaft 32 in the first rotation direction, the limiting structure 5 disengages from the internal gear ring 43. The motor shaft 32 drives the connector 6 to rotate synchronously via the one-way bearing 44. That is, when the motor shaft 32 drives the sun gear 42 to rotate in the first rotation direction, since the limiting structure 5 does not limit the internal gear ring 43, the sun gear 42 drives the planet gear 41 and the internal gear ring 43 to rotate at the same speed and in the same direction along the first rotation direction. The rotation speed of each component is the same as that of the motor shaft 32. At this time, the one-way bearing 44 is locked to the motor shaft 32. Therefore, the motor shaft 32 also drives the connector 6 to rotate synchronously at the same speed and in the same direction via the one-way bearing 44, achieving low torque and high speed output to meet the user's requirements for ingredients. The processing requirements for crushing are met. Simultaneously, when the motor shaft 32 is in the second rotation direction, the limiting structure 5 stops the rotation of the internal gear ring 43. The motor shaft 32 drives the sun gear 42 to rotate in the second direction. Due to the stopping of the internal gear ring 43, the rotational speed of the sun gear 42 is reduced by the planetary gear 41 and then output to the connector 6. At this time, the motor shaft 32 can rotate relative to the connector 6 with the help of the one-way bearing 44, thereby achieving a high torque and low speed output from the connector 6. This meets the user's requirements for ingredients such as kneading and grinding, thus realizing a multi-functional machine. It eliminates the need to purchase two different models to adapt to different ingredient processing needs, improving the user experience. Furthermore, compared to the existing method of using multiple one-way bearings 44 to achieve torque variation in the connector 6, this application relies on the planetary gear 41 to achieve a larger reduction ratio and a larger torque output, and uses the limiting structure 5 for limiting, resulting in a more stable and reliable operation. This reduces the use of one-way bearings and improves the reliability of torque transmission. Furthermore, the rotation and torque of the connector 6 can be changed using only a limiting structure 5 and a one-way bearing 44. The structure is simpler and more reliable, which helps to improve the compactness of the whole machine structure. In particular, it can reduce the axial dimension of the whole machine, avoid the whole machine's axial height being too high, which would cause the center of gravity of the whole machine to be too high, making it easy to vibrate or even tip over during food processing, thus improving the stability of food processing and making it easier for users to store the machine.

[0039] As a preferred embodiment of this application, such as Figure 2 , Figure 3 , Figure 4 As shown, the motor 3 includes a housing 31, and the top of the housing 31 is provided with a mounting cavity 311 for accommodating the gearbox 4. The internal gear ring 43 is rotatably disposed in the mounting cavity 311.

[0040] By providing a mounting cavity 311 at the top of the outer casing 31 to accommodate the gearbox 4, and rotatably mounting the internal gear ring 43 within the mounting cavity 311, the mounting and limiting of the internal gear ring 43 is achieved. This ensures that the internal gear ring 43 can only rotate within the mounting cavity 311, improving the stability of the internal gear ring 43's rotation and preventing radial displacement during rotation that could lead to overall transmission failure. Simultaneously, the outer casing 31 not only secures the motor 3 but also limits the internal gear ring 43, offering more versatile functionality. This eliminates the need for additional structural components to secure the internal gear ring 43, further simplifying the overall machine structure, reducing the axial dimensions of the machine, and further improving the overall operational stability.

[0041] Furthermore, such as Figure 3 As shown, the side wall of the mounting cavity 311 is provided with inwardly extending vertical ribs. Multiple vertical ribs are provided and are spaced apart circumferentially along the side wall of the mounting cavity 311. An oil storage groove is formed between two adjacent vertical ribs.

[0042] By providing inwardly extending vertical ribs on the sidewall of the mounting cavity 311, with multiple ribs spaced circumferentially along the sidewall, the vertical ribs can radially limit the internal gear ring 43 after it is installed in the mounting cavity 311. Compared to directly limiting the internal gear ring 43 through the cavity wall of the mounting cavity 311, the vertical ribs significantly reduce the contact area between the internal gear ring 43 and the mounting cavity 311, thereby reducing the friction between them and making the internal gear ring 43 rotate more smoothly, reducing kinetic energy loss. Furthermore, an oil reservoir is formed between adjacent vertical ribs, allowing lubricating oil to be added to the reservoir, achieving lubrication between the internal gear ring 43 and the mounting cavity 311, further improving the smoothness of the internal gear ring 43's rotation.

[0043] It should be noted that this application does not specifically limit the structure of the internal gear ring 43. As a preferred embodiment of this application, such as Figure 4 As shown, the internal gear ring 43 includes a mating part 434 disposed in the mounting cavity 311 and a limiting part 433 disposed above the mating part 434 and protruding from the mounting cavity 311. The limiting part 433 is engaged with the limiting structure 5 to prevent rotation.

[0044] By configuring the internal gear ring 43 to include a mating part 434 located within the mounting cavity 311 and a limiting part 433 located above the mating part 434 and protruding from the mounting cavity 311, the internal gear ring 43 can be connected and engaged with the mounting cavity 311 through the mating part 434, allowing it to rotate stably within the mounting cavity 311. At the same time, the limiting part 433 can engage with the limiting structure 5 to prevent rotation, thereby limiting the rotation of the internal gear ring 43 and ensuring that the rotation and anti-rotation of the internal gear ring 43 do not interfere with each other, thus improving the overall stability of the machine operation.

[0045] As a preferred embodiment of this application, such as Figure 4 As shown, the bottom wall of the mounting cavity 311 is provided with a ring rib 312 extending circumferentially along the mounting cavity 311, and the ring rib 312 is supported below the gearbox 4.

[0046] By setting a ring rib 312 extending circumferentially along the mounting cavity 311 and supporting the gearbox 4 below, the gearbox 4 and the bottom wall of the mounting cavity 311 are isolated by the ring rib 312. Compared with direct contact between the two, the contact area between the two is greatly reduced, thereby greatly reducing the friction between the two and helping to further improve the smoothness of the rotation of the internal gear ring 43.

[0047] Furthermore, such as Figure 4 As shown, the gearbox 4 also includes a lower planetary support located below the planetary gear 41, and the ring rib 312 includes a first ring rib 3121 supported below the internal gear ring 43 and a second ring rib 3122 located inside the first ring rib 3121 and supported below the lower planetary support.

[0048] It should be noted that this application does not specifically limit the molding of the mounting cavity 311. As one preferred embodiment of this application, such as... Figure 4 As shown, the outer casing 31 includes a housing and an annular fixing frame disposed on the upper part of the housing. The annular fixing frame and the housing enclose a mounting cavity 311. Of course, the mounting cavity 311 is not limited to the above-described forming method; it can also be formed by the top wall of the outer casing 31 being recessed downwards, which will not be elaborated here.

[0049] It should be noted that this application does not specifically limit the limiting structure 5, which can be any one of the following embodiments:

[0050] Example 1: As Figure 5 , Figure 6 , Figure 7 As shown, in this embodiment, the outer wall of the inner gear ring 43 is provided with an outwardly extending anti-rotation rib 432, and the limiting structure 5 includes a pin 52 and a limiting motor 51. The limiting motor 51 can drive the pin 52 to lock or disengage from the anti-rotation rib 432.

[0051] By setting the limiting structure 5 to include a pin 52 and a limiting motor 51, the limiting motor 51 can drive the pin 52 to lock or disengage from the anti-rotation rib 432. When the user is using the food processor, the motor shaft 32 is in the first rotation direction, and the limiting motor 51 drives the pin 52 to disengage from the anti-rotation rib 432, so that the motor shaft 32 can drive the connector 6 to rotate synchronously. At the same time, the motor shaft 32 is in the second rotation direction, and the limiting motor 51 drives the pin 52 to lock with the anti-rotation rib 432, thereby preventing the rotation of the internal gear ring 43, so that the motor shaft 32 can rotate relative to the connector 6. The operation of the whole machine is more intelligent, and the locking or disengagement of the limiting structure 5 and the internal gear ring 43 can be achieved without manual adjustment, improving the user experience.

[0052] Furthermore, such as Figure 7 , Figure 8 As shown, the outer wall of the internal gear ring 43 is provided with a concave anti-rotation groove 431, and the anti-rotation rib 432 is provided in the anti-rotation groove 431.

[0053] By providing a recessed anti-rotation groove 431 on the outer wall of the internal gear ring 43, and placing the anti-rotation rib 432 within the anti-rotation groove 431, on the one hand, the pin 52 can be inserted into the anti-rotation groove 431 during reciprocating motion. The anti-rotation rib 432 abuts against the pin 52 during the rotation of the internal gear ring 43, thereby achieving anti-rotation and limiting of the internal gear ring 43. While achieving anti-rotation, the pin 52 can also achieve axial limiting with the anti-rotation groove 431, thereby achieving axial limiting of the internal gear ring 43, ensuring the stability of the axial position of the internal gear ring 43, and further improving the reliability of the position of the internal gear ring 43. On the other hand, the anti-rotation rib 432 is hidden, avoiding the situation where the anti-rotation rib 432 protrudes from the outer surface of the internal gear ring 43, resulting in a large overall radial dimension of the internal gear ring 43 and occupying a large space, which helps to further improve the compactness of the overall structure.

[0054] Example 2: Figure 9 , Figure 10 As shown, in this embodiment, the outer wall of the inner gear ring 43 is provided with a plurality of tooth grooves 435 arranged along its circumference, and the limiting structure 5 includes a ratchet pawl 53 that cooperates with the tooth grooves 435.

[0055] By providing multiple circumferentially arranged toothed grooves 435 on the outer wall of the inner gear ring 43, and including a ratchet pawl 53 that engages with the toothed grooves 435, when the motor shaft 32 is in the first rotation direction, the ratchet pawl 53 only abuts against the outer surface of the outer gear ring, so that the inner gear ring 43 can rotate smoothly. At the same time, when the motor shaft 32 is in the second rotation direction, the ratchet pawl 53 engages with the toothed grooves 435, thereby achieving circumferential anti-rotation of the inner gear ring 43. The limiting structure 5 is simple and reliable, which helps to reduce production costs.

[0056] Furthermore, such as Figure 10As shown, the host 2 is provided with a fixing part, one end of the ratchet pawl 53 is hinged to the fixing part, and the other end is a free end. The fixing part is also provided with an upwardly extending limiting plate 55, and a spring 54 is provided between the limiting plate 55 and the ratchet pawl 53.

[0057] It should be noted that this application does not specifically limit the structure of connector 6. As one preferred embodiment of this application, such as Figure 4 As shown, the connector 6 includes a driven part 61 that is drivenly connected to the one-way bearing 44 and the planetary gear 41, and an active part 62 that extends upward from the driven part 61 and is drivenly connected to the cup body assembly 1.

[0058] As a preferred embodiment of this application, such as Figure 4 As shown, the top of the motor shaft 32 is also provided with a transmission head 7, and the connector 6 is provided with an active part 62 surrounding the outside of the transmission head 7.

[0059] By providing a transmission head 7 at the top of the motor shaft 32 and an active part 62 surrounding the transmission head 7 on the connector 6, users can replace different cup components 1 with either the transmission head 7 or the connector 6 according to different ingredients, further expanding the applicability of the food processor, meeting different user needs, and further improving the user experience.

[0060] The technical solutions protected by this utility model are not limited to the above embodiments. It should be noted that any combination of the technical solutions of any embodiment with one or more other embodiments is within the protection scope of this utility model. Although this utility model has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A user-friendly food processing machine, comprising a main unit and a detachable cup assembly disposed above the main unit, characterized in that, The main unit contains a motor and a reduction gearbox connected to the motor. The reduction gearbox includes a rotatable internal gear ring, a sun gear disposed on the internal gear ring and fixed to the motor shaft, planet gears meshing between the sun gear and the internal gear ring, and a connector connected to the planet gears. The motor shaft is connected to the connector, and a one-way bearing is provided between the connector and the motor shaft. The main unit also has a limiting structure for preventing and limiting the rotation of the internal gear ring. The motor shaft has a first rotation direction and a second rotation direction. When the motor shaft is in the first rotation direction, the limiting structure disengages from the internal gear ring, and the motor shaft drives the connector to rotate synchronously through the one-way bearing; when the motor shaft is in the second transmission direction, the limiting structure stops and limits the rotation of the internal gear ring, and the motor shaft drives the connector to rotate through the planetary gear.

2. The user-friendly food processing machine according to claim 1, characterized in that, The motor includes a housing, and the top of the housing has a mounting cavity for accommodating a gearbox. The internal gear ring is rotatably disposed within the mounting cavity.

3. The user-friendly food processing machine according to claim 2, characterized in that, The mounting cavity sidewall is provided with inwardly extending vertical ribs, and multiple vertical ribs are provided and spaced apart circumferentially along the mounting cavity sidewall, forming an oil storage groove between two adjacent vertical ribs.

4. The user-friendly food processing machine according to claim 2, characterized in that, The internal gear ring includes a mating part disposed in the mounting cavity and a limiting part disposed above the mating part and protruding out of the mounting cavity, wherein the limiting part is engaged with the limiting structure to prevent rotation.

5. The user-friendly food processing machine according to claim 1, characterized in that, The outer wall of the internal gear ring is provided with an outwardly extending anti-rotation rib. The limiting structure includes a pin and a limiting motor. The limiting motor can drive the pin to lock or disengage from the anti-rotation rib.

6. A user-friendly food processing machine according to claim 5, characterized in that, The outer wall of the internal gear ring is provided with a concave anti-rotation groove, and the anti-rotation rib is provided in the anti-rotation groove.

7. The user-friendly food processing machine according to claim 1, characterized in that, The outer wall of the internal gear ring is provided with a plurality of tooth grooves arranged circumferentially thereon, and the limiting structure includes a ratchet pawl that cooperates with the tooth grooves.

8. A user-friendly food processing machine according to claim 7, characterized in that, The main unit is provided with a fixing part, one end of the ratchet pawl is hinged to the fixing part, and the other end is a free end. The fixing part is also provided with an upwardly extending limiting plate, and a spring is provided between the limiting plate and the ratchet pawl.

9. A user-friendly food processing machine according to claim 1, characterized in that, The connector includes a driven part connected to the one-way bearing and the planetary gear drive, and an active part extending upward from the driven part and capable of being drivenly connected to the cup body assembly.

10. A user-friendly food processing machine according to claim 1, characterized in that, The top of the motor shaft is also provided with a transmission head, and the connector is provided with an active part surrounding the outside of the transmission head.

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