Food processor

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a food processor which comprises a stirring cup, a driving device and a cutter assembly, the cutter assembly comprises an upper shell, a lower shell, a blade, a shaft sleeve and a driven magnetic disc, the upper shell and the lower shell define a mounting cavity, the blade is located above the upper shell, and the shaft sleeve and the driven magnetic disc are located in the mounting cavity. The upper end of the transmission shaft extends out of the upper shell to be connected with the blade, the lower end of the transmission shaft is connected with a driven magnetic disc, the driven magnetic disc is driven by a driving device, the shaft sleeve comprises a main body part which extends outwards to surround the periphery of the driven magnetic disc, and an attraction magnet is installed at the bottom end of the main body part; the lower end face of the attraction magnet is lower than the lower end face of the driven magnetic disc, and the attraction magnet and the attraction piece attract each other. The magnetic field interference between the attraction magnet and the driven magnetic disk is reduced, reliable limiting between the cutter assembly and the stirring cup is achieved, and meanwhile effective and sensitive transmission of the driven magnetic disk can be guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to a food processing machine. Background Technology

[0002] A food processing machine utilizes magnetic force to drive a blade assembly to rotate, allowing the blade assembly to be removed from the mixing cup for thorough cleaning and a good seal. The blade assembly, housed within the mixing cup, includes a blade holder housing a driven disk and blades positioned above the holder. A drive shaft passes through the top wall of the blade holder, connecting the driven disk to the blades. The food processing machine also includes a main unit with a built-in motor. Within the main unit is a drive disk driven by the motor; the driven disk rotates in response to changes in the magnetic field of the drive disk.

[0003] However, existing cutter assemblies lack axial restraint between the cutter holder and the mixing cup. During the machining process, the cutter assembly will float axially, causing unstable rotation and generating noise. Furthermore, after machining, when the user pours out the slurry from the mixing cup, the lack of restraint between the cutter assembly and the mixing cup may cause the cutter assembly to be poured out with the slurry, resulting in damage or breakage and a poor user experience.

[0004] Based on this, the applicant wants to design a structure that can reliably limit the movement of the blade assembly and the mixing cup, while ensuring the effective and sensitive rotation of the blade assembly. Utility Model Content

[0005] This invention provides a food processing machine that solves the problems in the prior art where the lack of reliable limiting between the blade assembly and the mixing cup leads to the blade assembly floating and the pouring of the mixture, while the use of a magnetic attraction magnet can affect the driven disk with a magnetic field, causing the driven disk to become insensitive or fail and the blade assembly to be unreliable in engagement.

[0006] The technical solution adopted in this utility model is as follows:

[0007] This utility model provides a food processing machine, including a mixing cup, a driving device, and a blade assembly detachably installed inside the mixing cup. The blade assembly includes an upper housing and a lower housing that enclose a mounting cavity, a blade located above the upper housing, a bushing located in the mounting cavity, and a driven disk. A bearing is installed inside the bushing, and a drive shaft passes through the bearing. The upper end of the drive shaft extends out of the upper housing and connects to the blade, and the lower end of the drive shaft connects to the driven disk. The driven disk is driven by the driving device. The bushing includes a main body extending outward to surround the outer periphery of the driven disk. An attractive magnet is installed at the bottom end of the main body. An attractive member is provided on the outer side of the bottom wall of the mixing cup. The lower end face of the attractive magnet is lower than the lower end face of the driven disk, and the attractive magnet and the attractive member attract each other.

[0008] This utility model provides a food processing machine. The bushing includes a main body, and an attractive magnet is installed at the bottom end of the main body. An attractive element is provided on the outer side of the bottom wall of the mixing cup. When the blade assembly is installed in the mixing cup, the attractive magnet and the attractive element attract each other, so that a reliable connection is formed between the blade assembly and the mixing cup, and the positioning is achieved. During the process of the driven disk rotating the blade driven by the driving device, the lower housing of the blade assembly can be stably connected to the bottom wall of the mixing cup, thereby preventing the blade assembly from floating, reducing working noise, and preventing the blade assembly from falling off the mixing cup during the pouring process. Since the main body surrounds the driven disk and the attracting magnet is located at the bottom of the main body, the attracting magnet is positioned on the outer periphery of the driven disk. In the radial direction, the main body provides radial isolation between the attracting magnet and the driven disk. Simultaneously, the lower end face of the attracting magnet is lower than the lower end face of the driven disk. In the axial direction, the attracting magnet and the driven disk are axially misaligned. This reduces magnetic field interference between the attracting magnet and the driven disk, preventing the formation of a closed loop of magnetic lines of force between them. This allows sufficient magnetic lines of force to form a closed loop between the driven disk and the drive device, achieving effective and sensitive transmission. Sufficient magnetic lines of force also form a closed loop between the attracting magnet and the attracting element, strengthening the magnetic force between them and ensuring reliable engagement. In summary, this invention not only achieves reliable positioning between the blade assembly and the stirring cup but also ensures effective and sensitive transmission of the driven disk, enabling reliable rotation of the blade assembly.

[0009] In a preferred embodiment, the attracting magnet is ring-shaped, and the main body is provided with a magnetic shielding ring that isolates the metal between the inner side of the attracting magnet and the driven disk.

[0010] By incorporating a metal magnetic shielding ring, the magnetic lines of force of the driven disk are blocked inside the ring, creating a closed loop between the magnetic lines of force of the driven disk and the drive device, thus achieving effective transmission. At the same time, the magnetic shielding ring isolates the magnetic lines of force of the attracting magnet from the outside, avoiding mutual interference between the attracting magnet and the driven disk, and ensuring reliable engagement between the attracting magnet and the attracting component. Therefore, along the radial direction, the efficiency and sensitivity of transmission are improved, while the engagement reliability of the tool assembly is also enhanced.

[0011] More preferably, the bottom end of the main body is provided with a downwardly extending first ring rib, the magnetic shielding ring is sleeved on the outside of the first ring rib, and the attracting magnet is located on the outer periphery of the first ring rib.

[0012] By setting a first ring rib at the bottom of the main body and fitting the magnetic shielding ring around the outer periphery of the first ring rib, a reliable connection between the magnetic shielding ring and the bushing is achieved. Especially when the bushing is made of non-metallic material, the structure is reliable, thereby effectively isolating the magnetic field between the attracting magnet and the driven disk.

[0013] In a preferred embodiment, the magnetic shielding ring is integrally formed at the bottom end of the main body.

[0014] In a preferred embodiment, the main body includes an extension wall extending radially outward, a surrounding wall extending downward from the extension wall, and a mounting portion connected to the bottom end of the surrounding wall, wherein the attracting magnet is mounted on the mounting portion.

[0015] By configuring the main body to include an extension wall extending radially outward, a surrounding wall extending downward from the extension wall, and a mounting part connected to the bottom end of the surrounding wall, the radial extension wall can increase the radial distance between the driven disk and the attracting magnet, and the surrounding wall extending downward from the extension wall can surround the outer periphery of the driven disk, separating the attracting magnet and the driven disk in different spaces to achieve isolation. This is beneficial for radial isolation of the driven disk and the attracting magnet and reduces magnetic field interference between them.

[0016] In a preferred embodiment, the top of the mounting portion is provided with an upwardly extending reinforcing wall, and a weight-reducing groove is formed between the reinforcing wall and the surrounding wall;

[0017] By providing an upwardly extending reinforcing wall at the top of the mounting part, the structural strength of the mounting part is enhanced. When the magnet is fixed to the mounting part by riveting, cracks in the mounting part are avoided, ensuring reliable installation of the magnet. At the same time, a weight-reducing groove is formed between the reinforcing wall and the surrounding wall, preventing the bushing from having a large mass, which could lead to inaccuracies in machining and installation accuracy. This improves the assembly accuracy between the bushing and the upper and lower housings, making assembly easier and faster.

[0018] In a preferred embodiment, the enclosure wall and the extension wall are circularly transitioned, and the enclosure wall is an outwardly arched arc wall.

[0019] By creating an arc transition between the enclosure wall and the extension wall, and arching the enclosure wall outwards, the bushing can be smoothly connected from top to bottom. This results in a high structural strength and effectively ensures that the bushing is highly pressure-resistant and structurally reliable during the assembly of bearings, magnets, and other components with the bushing using high-pressure processes such as riveting.

[0020] In a preferred embodiment, the main body has a downwardly extending mounting ring wall, and the attracting magnet is fixed to the outer side wall of the mounting ring wall.

[0021] In a preferred embodiment, the bottom end of the main body is provided with a first ring rib extending downward and a second ring rib surrounding the outer periphery of the first ring rib, and a mounting groove for mounting the attracting magnet is formed between the first ring rib and the second ring rib.

[0022] By setting a mounting ring wall in the main body, the installation height of the attracting magnet can be lowered, so that the attracting magnetic force can be axially misaligned with the driven disk, avoiding magnetic field interference. Moreover, the structure of the mounting ring wall is simple, which can simplify the bushing structure.

[0023] The magnet is installed through the mounting groove formed between the first and second ring ribs, which can achieve radial limiting and fixation, improve the connection reliability between the magnet and the main body, and ensure precise installation and easy alignment.

[0024] In a preferred embodiment, the attracting magnet is a ring magnet, or the attracting magnet includes a plurality of magnetic blocks arranged circumferentially along the mounting ring wall or mounting groove, with baffles provided between adjacent magnetic blocks.

[0025] The magnetic attraction uses a ring magnet, which can reliably attract the magnetic attraction and the attraction component even when the user installs the knife assembly at multiple angles. This allows for multiple installation positions of the knife assembly, making it convenient for users to operate and eliminating the need for laborious alignment to avoid incorrect installation of the knife assembly, thus improving the user experience.

[0026] More preferably, the bottom end of the first ring rib and / or the second ring rib abuts against the lower housing, and a clearance gap is formed between the lower end face of the driven disk and the lower housing. Furthermore, a magnetic shielding ring is fitted onto the outer wall of the first ring rib, and an attractive magnet is disposed on the outer side of the magnetic shielding ring. The attractive magnet and the magnetic shielding ring are confined within the mounting groove.

[0027] By abutting the bottom ends of the first and / or second ring ribs against the lower housing, the bushing is brought into contact with the lower housing. This allows for precise control of the clearance between the lower housing and the bottom surface of the driven disk, achieving both rotational clearance between the driven disk and the lower housing, ensuring smooth rotation of the driven disk, and reducing the distance between the driven disk and the drive device, such as the drive disk, thus improving the effectiveness and reliability of the transmission. By utilizing the first or second ring rib, which limits the engagement magnet, to abut against the lower housing, and achieving precise control of the clearance between the driven disk and the lower housing, the bushing eliminates the need for an additional abutment part, simplifying its structure and resulting in a compact and rational design.

[0028] In a preferred embodiment, the upper housing is fixed to the lower housing and clamps the bushing, and the attracting magnet is clamped and fixed by the main body of the lower housing and the bushing.

[0029] The bushing is clamped and fixed by the upper housing and the lower housing, which is a simple fixing method and simplifies the assembly steps of the tool assembly. The bushing can be used as the installation reference during the assembly of the tool assembly, reducing the axial dimension chain. The clearance between the driven disk and the lower housing can be precisely controlled. At the same time, the attracting magnet is clamped and fixed by the lower housing and the main body of the bushing, further simplifying the assembly steps.

[0030] In a preferred embodiment, the suction element is fixed to the outer bottom wall of the stirring cup;

[0031] Alternatively, the mixing cup may include a cup body and a cup base fixed to the bottom of the cup body, with the suction element fixed in the cup base.

[0032] Whether the suction component is fixed to the outer bottom wall of the mixing cup or in the cup base, it can be used to engage with the suction magnet to limit the position of the blade assembly and the mixing cup, solving the problems of blade assembly rotation and floating and pouring and falling, reducing working noise and improving the user experience.

[0033] In a preferred embodiment, the upper surface of the attracting magnet is lower than the upper surface of the driven disk, so that the attracting magnet and the driven disk are axially offset.

[0034] By placing the upper surface of the attracting magnet below the upper surface of the driven disk, the attracting magnet and the driven disk are completely offset along the axial direction, further preventing the magnetic lines of force on the side of the attracting magnet from forming a closed loop with the driven disk. This further reduces magnetic field interference between the attracting magnet and the driven disk, ensuring reliable positioning of the blade assembly and the mixing cup while ensuring effective transmission of the driven disk.

[0035] In a preferred embodiment, the driving device includes a motor and a drive disk driven by the shaft of the motor, the drive disk driving the driven disk to rotate remotely;

[0036] Alternatively, the driving device is an electromagnetic coil that generates a magnetic field when energized, including a stator and a coil winding wound on the stator, wherein the electromagnetic coil drives the driven disk to rotate in the air.

[0037] Whether the drive device uses a motor and drive disk or a stator and coil windings, it can drive the driven disk through changes in the magnetic field, thereby achieving effective rotation of the blades and realizing the crushing and processing of food ingredients. Attached Figure Description

[0038] 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:

[0039] Figure 1 This is a cross-sectional view of a food processing machine according to one embodiment of the present invention;

[0040] Figure 2 This is a structural diagram of the stirring cup in one embodiment of the present invention;

[0041] Figure 3 This is an exploded view of the blade assembly in one embodiment of the present invention;

[0042] Figure 4 This is a cross-sectional view of the bushing in one embodiment of the present invention.

[0043] List of components and reference numerals: 10. Stirring cup; 11. Drive unit; 111. Drive disk; 20. Blade assembly; 21. Upper housing; 22. Lower housing; 23. Blade; 24. Bushing; 241. Cylinder wall; 242. Extension wall; 243. Enclosure wall; 244. Mounting part; 245. Reinforcing wall; 246. Weight reduction groove; 247. First ring rib; 248. Second ring rib; 249. Magnetic isolation ring; 25. Driven disk; 26. Drive shaft; 27. Bearing; 28. Shaft seal; 30. Main unit; 40. Motor; 50. Attracting magnet; 60. Attracting component. Detailed Implementation

[0044] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0045] Many specific details are set forth in the following description 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. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0046] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] like Figure 1 , 2 As shown, in one embodiment, this utility model provides a food processing machine, including a mixing cup 10, a drive device 11, and a blade assembly 20 detachably installed inside the mixing cup 10. Figure 3 As shown, the blade assembly 20 includes an upper housing 21 and a lower housing 22 that enclose a mounting cavity, a blade 23 located above the upper housing 21, a bushing 24 located in the mounting cavity, and a driven disk 25. A bearing 27 is installed inside the bushing 24, and a drive shaft 26 passes through the bearing 27. The upper end of the drive shaft 26 extends out of the upper housing 21 and is connected to the blade 23. The lower end of the drive shaft 26 is connected to the driven disk 25. The driven disk 25 is driven by the drive device 11. The bushing 24 includes a main body that extends outward to surround the outer periphery of the driven disk 25. A magnet 50 is installed at the bottom end of the main body. A suction member 60 is provided on the outer side of the bottom wall of the stirring cup 10. The lower end face of the magnet 50 is lower than the lower end face of the driven disk 25. The magnet 50 and the suction member 60 attract each other.

[0050] The present invention provides a food processing machine, wherein the bushing 24 includes a main body, and a magnet 50 is installed at the bottom end of the main body. A suction member is provided on the outer side of the bottom wall of the mixing cup 10. When the blade assembly 20 is installed in the mixing cup 10, the magnet 50 and the suction member attract each other, so that the blade assembly 20 and the mixing cup 10 form a reliable connection and achieve positioning. During the process of the driven disk 25 being driven by the drive device 11 to rotate the blade 23, the lower housing 22 of the blade assembly 20 can be stably connected to the bottom wall of the mixing cup 10, thereby preventing the blade assembly 20 from floating, reducing working noise, and preventing the blade assembly 20 from falling off the mixing cup 10 during the pouring process. Since the main body surrounds the outer periphery of the driven disk 25 and the attracting magnet 50 is located at the bottom of the main body, the attracting magnet 50 is located on the outer periphery of the driven disk 25. In the radial direction, the attracting magnet 50 and the driven disk 25 are radially isolated by the main body. At the same time, the lower end face of the attracting magnet 50 is lower than the lower end face of the driven disk 25. In the axial direction, the attracting magnet 50 and the driven disk 25 are axially misaligned. Therefore, the magnetic field interference between the attracting magnet 50 and the driven disk 25 is reduced, and the magnetic lines of force between the driven disk 25 and the attracting magnet 50 are prevented from forming a closed loop. This allows the driven disk 25 to form a closed loop with the drive device 11 with sufficient magnetic lines of force, achieving effective and sensitive transmission. With sufficient magnetic lines of force between the attracting magnet 50 and the attracting element to form a closed loop, the magnetic force between the attracting magnet 50 and the attracting element is strengthened, and the attraction is reliable. In summary, this utility model not only achieves reliable positioning between the blade assembly 20 and the stirring cup 10, but also ensures effective and sensitive transmission of the driven disk 25, enabling reliable rotation of the blade assembly 20.

[0051] It should be noted that this utility model does not limit the specific structure of the driving device. In a preferred embodiment, such as... Figure 1 As shown, the food processor also includes a main unit 30 supporting the mixing cup 10. The mixing cup 10 can be detachably mounted on top of the main unit 30 or fixed on top of the main unit 30. The drive unit 11 is installed inside the main unit 30. The drive unit 11 includes a motor 40 and a drive disk 111 driven by the shaft of the motor 40. The drive disk 111 is located below the driven disk 25 and drives the driven disk 25 to rotate remotely.

[0052] Of course, in other preferred embodiments, the driving device 11 is an electromagnetic coil that generates a magnetic field after being energized, including a stator and a coil winding wound on the stator. The electromagnetic coil may be located below or on the outer periphery of the driven disk, driving the driven disk 25 to rotate in the air.

[0053] Whether the drive device 11 uses a motor 40 and a drive disk 111 or a stator and coil windings, it can drive the driven disk 25 by changing the magnetic field, thereby achieving effective rotation of the blade 23 and realizing the crushing and processing of food ingredients.

[0054] It should also be noted that this utility model does not limit the installation and structure of the attracting magnet and the attracting component. In a preferred embodiment, the attracting magnet 50 is not only used to attract the attracting component 60, but also to realize the position detection of the knife assembly. Specifically, the food processing machine also includes a detection device for detecting the position of the attracting magnet 50. Therefore, the attracting magnet 50 not only attracts the attracting component, but can also be used to cooperate with the detection device to detect the position of the knife assembly 20.

[0055] Optionally, the attracting element 60 is a magnetic block or an iron block.

[0056] The detection device is a reed switch or a Hall element.

[0057] Optionally, such as Figure 1 As shown, the suction member 60 is fixed to the outer bottom wall of the mixing cup 10; or, the mixing cup 10 includes a cup body and a cup seat fixed to the bottom of the cup body, and the suction member 60 is fixed in the cup seat.

[0058] Whether the suction component is fixed to the outer bottom wall of the mixing cup 10 or in the cup base, it can be used to attract the suction magnet 50 to limit the blade assembly 20 and the mixing cup 10, solve the problem of the blade assembly 20 rotating and floating and the problem of pouring and falling, reduce working noise and improve the user experience.

[0059] like Figure 3 As shown, in a preferred embodiment of the present invention, the attracting magnet 50 is ring-shaped, and the main body is provided with a metal magnetic shielding ring 249 that isolates the inner side of the attracting magnet 50 from the driven disk 25.

[0060] By setting a metal magnetic shielding ring 249, the magnetic lines of force of the driven disk 25 are blocked inside the magnetic shielding ring 249, so that the magnetic lines of force of the driven disk 25 and the drive device 11 form a closed loop, thereby realizing effective transmission. At the same time, the magnetic shielding ring 249 isolates the magnetic lines of force of the attracting magnet 50 from the outside, avoiding mutual interference between the attracting magnet 50 and the driven disk 25, and realizing reliable attraction between the attracting magnet 50 and the attracting component. Therefore, along the radial direction, the effectiveness and sensitivity of transmission are improved, and the attraction reliability of the tool assembly 20 is also improved.

[0061] More preferably, such as Figure 3 As shown, the bottom end of the main body is provided with a downwardly extending first ring rib 247, a magnetic shielding ring 249 is sleeved on the outside of the first ring rib 247, and the attracting magnet 50 is located on the outer periphery of the first ring rib 247.

[0062] By setting a first ring rib 247 at the bottom of the main body, the magnetic isolation ring 249 is sleeved on the outer periphery of the first ring rib 247, so as to achieve a reliable connection between the magnetic isolation ring 249 and the bushing 24. Especially when the bushing 24 is made of non-metallic material, the structure is reliable, thereby effectively isolating the magnetic field between the attracting magnet 50 and the driven disk 25.

[0063] Of course, in another preferred embodiment, when the bushing is made of metal, the magnetic shielding ring 249 can be integrally formed on the bottom end of the main body, eliminating the hassle of assembly.

[0064] Regarding the specific structure of the bushing, such as Figure 3 , 4 As shown, in a preferred embodiment, the bushing 24 includes a cylindrical wall 241 of the cylindrical body portion for mounting the bearing 27 and the shaft seal 28, and a main body portion connected to the bottom end of the cylindrical wall 241. The drive shaft 26 is rotatably mounted on the bushing 24 via the bearing 27. The main body portion includes an extension wall 242 extending radially outward from the bottom end of the cylindrical wall 241, a surrounding wall 243 extending downward from the extension wall 242, and a mounting portion 244 connected to the bottom end of the surrounding wall 243. The attracting magnet 50 is mounted on the mounting portion 244.

[0065] By configuring the main body to include an extension wall 242 extending radially outward, a surrounding wall 243 extending downward from the extension wall 242, and a mounting part 244 connected to the bottom end of the surrounding wall 243, the radial extension wall 242 can increase the radial distance between the driven disk 25 and the attracting magnet 50. The surrounding wall 243 extends downward from the extension wall 242 and can surround the outer periphery of the driven disk 25, separating the attracting magnet 50 and the driven disk 25 into different spaces, thus achieving isolation. This is beneficial for radial isolation of the driven disk 25 and the attracting magnet 50 and reduces magnetic field interference between them.

[0066] Preferably, the enclosure wall 243 and the extension wall 242 are connected by an arc, and the enclosure wall 243 is an outwardly arched arc wall.

[0067] By making the transition between the enclosure wall 243 and the extension wall 242 in an arc and arching the enclosure wall 243 outward, the bushing 24 can be smoothly connected from top to bottom, resulting in high structural strength. This effectively ensures that the bushing 24 has strong pressure resistance and a reliable structure during the assembly of the bearing 27, the magnet 50, and other components with the bushing 24 using high-pressure processes such as riveting.

[0068] In a more preferred embodiment, the top end of the mounting portion 244 is provided with an upwardly extending reinforcing wall 245, and a weight-reducing groove 246 is formed between the reinforcing wall 245 and the surrounding wall 243.

[0069] By providing an upwardly extending reinforcing wall 245 at the top of the mounting part 244, the structural strength of the mounting part 244 is enhanced. When the magnet 50 is fixed to the mounting part 244 by riveting, cracks in the mounting part 244 are avoided, thus ensuring reliable installation of the magnet 50. At the same time, a weight-reducing groove 246 is formed between the reinforcing wall 245 and the surrounding wall 243, which prevents the bushing 24 from having a large mass, thus avoiding inaccuracies in machining and installation accuracy. This improves the assembly accuracy between the bushing 24 and the upper housing 21 and the lower housing 22, making assembly easier and faster.

[0070] This invention does not limit the installation structure of the attracting magnets, such as... Figure 4 As shown, in a preferred embodiment, the bottom end of the main body is provided with a downwardly extending first annular rib 247 and a second annular rib 248 surrounding the outer periphery of the first annular rib 247, and a mounting groove for mounting the attracting magnet 50 is formed between the first annular rib 247 and the second annular rib 248. Based on this embodiment, a magnetic isolation ring is sleeved on the outer periphery of the first annular rib 247.

[0071] The magnet 50 is installed through the mounting groove formed between the first ring rib 247 and the second ring rib 248, which can achieve radial limiting and fixing, improve the connection reliability between the magnet 50 and the main body, and the installation position is precise and easy to align.

[0072] Of course, in another preferred embodiment, the main body is provided with a downwardly extending mounting ring wall, the attracting magnet 50 is fixed to the outer side wall of the mounting ring wall, and the magnetic isolation ring is optionally sleeved between the mounting ring wall and the attracting magnet 50.

[0073] By setting an mounting ring wall in the main body, the mounting height of the attracting magnet 50 can be lowered, so that the attracting magnetic force can be axially misaligned with the driven disk 25, avoiding magnetic field interference. Moreover, the structure of the mounting ring wall is simple, which can simplify the structure of the bushing 24.

[0074] The attracting magnet 50 may be a ring magnet, or the attracting magnet 50 may include a plurality of magnetic blocks arranged at intervals along the circumference of the mounting ring wall or mounting groove, with baffles provided between adjacent magnetic blocks.

[0075] The magnetic magnet 50 is a ring magnet, which can reliably attract the magnetic magnet 50 and the attracting part when the user installs the knife assembly 20 at multiple angles. This allows the knife assembly 20 to be installed in multiple orientations, making it convenient for the user to operate and eliminating the need for laborious alignment to avoid incorrect installation of the knife assembly 20, thus improving the user experience.

[0076] Combination Figure 3 , 4As shown, in a more preferred embodiment, the bottom ends of the first ring rib 247 and / or the second ring rib 248 abut against the lower housing 22, and a clearance gap is formed between the lower end face of the driven disk 25 and the lower housing 22.

[0077] By abutting the bottom ends of the first ring rib 247 and / or the second ring rib 248 against the lower housing 22, the bushing 24 abuts against the lower housing 22. This allows for precise control of the clearance between the lower housing 22 and the bottom surface of the driven disk 25, achieving both rotational clearance between the driven disk 25 and the lower housing 22, ensuring smooth rotation of the driven disk 25, and reducing the distance between the driven disk 25 and the drive device 11, such as the drive disk 111, thereby improving the effectiveness and reliability of the transmission. By utilizing the first ring rib 247 or the second ring rib 248, which limits the attraction magnet 50, to abut against the lower housing 22, and achieving precise control of the clearance between the driven disk 25 and the lower housing 22, it eliminates the need for additional abutment parts on the bushing 24, simplifying its structure and resulting in a compact and reasonable design.

[0078] In a preferred embodiment, the upper housing 21 is fixed to the lower housing 22 and clamps the bushing 24, and the attracting magnet 50 is clamped and fixed by the lower housing 22 and the main body of the bushing 24; or, the attracting magnet 50 is fixed to the main body by riveting, such as in the mounting groove, or, the attracting magnet 50 is pasted to the main body of the bushing.

[0079] The bushing 24 is clamped and fixed by the upper housing 21 and the lower housing 22. The fixing method is simple and simplifies the assembly steps of the tool assembly 20. The bushing 24 can be used as the installation reference when assembling the tool assembly 20, reducing the axial dimension chain. The clearance between the driven disk 25 and the lower housing 22 can be precisely controlled. At the same time, the attracting magnet 50 is clamped and fixed by the lower housing 22 and the main body of the bushing 24, further simplifying the assembly steps.

[0080] In a preferred embodiment, the upper surface of the attracting magnet 50 is lower than the upper surface of the driven disk 25, so that the attracting magnet 50 and the driven disk 25 are completely offset axially.

[0081] With this configuration, whether the drive disk drives the slave disk 25 from below, or the drive device 11 uses an electromagnetic coil surrounding the slave disk 25 to drive the slave disk, it can achieve a good transmission effect on the slave disk 25 and realize reliable transmission.

[0082] By making the upper surface of the attracting magnet 50 lower than the upper surface of the driven disk 25, the attracting magnet 50 and the driven disk 25 are completely offset along the axial direction, further preventing the magnetic lines of force on the side of the attracting magnet 50 from forming a closed loop with the driven disk 25, thereby further reducing the magnetic field interference between the attracting magnet 50 and the driven disk 25. On the basis of ensuring the effective transmission of the driven disk 25, reliable positioning of the blade assembly 20 and the stirring cup 10 is achieved.

[0083] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0084] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0085] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A food processing machine, comprising a mixing cup, a drive unit, and a blade assembly detachably installed within the mixing cup, characterized in that, The blade assembly includes an upper housing and a lower housing that enclose a mounting cavity, a blade located above the upper housing, a bushing located in the mounting cavity, and a driven disk. A bearing is installed inside the bushing, and a drive shaft passes through the bearing. The upper end of the drive shaft extends out of the upper housing and is connected to the blade. The lower end of the drive shaft is connected to the driven disk. The driven disk is driven by the drive device. The bushing includes a main body extending outward to surround the outer periphery of the driven disk. An attractive magnet is installed at the bottom end of the main body. An attractive member is provided on the outer side of the bottom wall of the stirring cup. The lower end face of the attractive magnet is lower than the lower end face of the driven disk. The attractive magnet and the attractive member attract each other.

2. The food processing machine according to claim 1, characterized in that, The attracting magnet is ring-shaped, and the main body is provided with a magnetic shielding ring that isolates the metal between the inner side of the attracting magnet and the driven disk.

3. A food processing machine according to claim 2, characterized in that, The bottom end of the main body is provided with a first ring rib extending downward, the magnetic shielding ring is sleeved on the outside of the first ring rib, and the attracting magnet is located on the outer periphery of the first ring rib.

4. A food processing machine according to claim 1, characterized in that, The main body includes an extension wall extending radially outward, a surrounding wall extending downward from the extension wall, and a mounting part connected to the bottom end of the surrounding wall, wherein the attracting magnet is mounted on the mounting part.

5. A food processing machine according to claim 4, characterized in that, The top of the mounting part is provided with an upwardly extending reinforcing wall, and a weight-reducing groove is formed between the reinforcing wall and the enclosure wall; Alternatively, the enclosure wall and the extension wall transition with an arc, and the enclosure wall is an outwardly arched arc wall.

6. A food processing machine according to claim 1, characterized in that, The main body is provided with a downwardly extending mounting ring wall, and the attracting magnet is fixed to the outer side wall of the mounting ring wall.

7. A food processing machine according to claim 1, characterized in that, The bottom end of the main body is provided with a first ring rib extending downward and a second ring rib surrounding the outer periphery of the first ring rib, and a mounting groove for mounting the attracting magnet is formed between the first ring rib and the second ring rib.

8. A food processing machine according to claim 7, characterized in that, The bottom end of the first ring rib and / or the second ring rib abuts against the lower housing, and a clearance gap is formed between the lower end face of the driven disk and the lower housing.

9. A food processing machine according to claim 1, characterized in that, The upper housing is fixed to the lower housing and clamps the bushing, and the attracting magnet is clamped and fixed by the main body of the lower housing and the bushing.

10. A food processing machine according to claim 1, characterized in that, The suction component is fixed to the outer bottom wall of the mixing cup; Alternatively, the stirring cup includes a cup body and a cup base fixed to the bottom of the cup body, and the suction member is fixed in the cup base; Alternatively, the upper surface of the attracting magnet is lower than the upper surface of the driven disk, so that the attracting magnet and the driven disk are axially offset.

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