Food processor reliable in installation

Abstract

The utility model belongs to the technical field of food processing devices, and discloses a reliably-installed food processor which comprises a stirring cup, the stirring cup comprises a cup body, a cutter head fixed to the bottom of the cup body and a cutter assembly installed on the cutter head, a positioning shaft protruding upwards is fixedly arranged on the cutter head, and the cutter assembly is detachably installed on the positioning shaft. The cutter assembly comprises a connecting shaft and a rotating base arranged outside the connecting shaft in a sleeving mode, a blade is installed on the rotating base, the rotating base is connected with the connecting shaft through a bearing so as to rotate relative to the connecting shaft, a protruding pin and a screwing groove are arranged between the connecting shaft and the positioning shaft, and the protruding pin is clamped in the screwing groove in a rotating mode so that the connecting shaft and the positioning shaft can be limited in the axial direction. The cutter assembly of the food processor is convenient to disassemble, assemble and clean, reliable in installation and capable of achieving multiple functions.

Description

Technical Field

[0001] The utility model belongs to the technical field of food processing devices, and in particular relates to a food processing machine with reliable installation. Background Art

[0002] A food processor generally includes a cup body and a mixing blade. A heating plate is provided at the bottom of the cup body, and the mixing blade is inseparably mounted on the heating plate. This makes it difficult for users to clean the mixing blade. After long-term use, there are dead corners where dirt may hide, making cleaning inconvenient and affecting hygiene.

[0003] Some food processors in the prior art have a mixing knife configured as a detachable structure. For example, in a food processor, a knife disc assembly includes a knife disc and a magnetically driven knife assembly. The knife disc includes a disc body and a positioning member located at the center of the disc body. The magnetically driven knife assembly includes a connecting shaft, a driven magnetic assembly, and a blade; the driven magnetic assembly is fixedly connected to the blade and is also rotatably connected to the connecting shaft; the connecting shaft and the positioning member are inserted and relatively fixed, and are also connected by magnetic adsorption, and the active magnetic drive device drives the driven magnetic assembly and the blade as a whole to rotate relative to the disc body by magnetic force.

[0004] This solution realizes the detachable cleaning of the magnetic drive knife assembly, which is more convenient to use and easy to clean. However, since the connecting shaft and the positioning piece are inserted and relatively fixed, and connected by magnetic adsorption, during the assembly and use of the whole machine, the magnetic attraction effect between the connecting shaft and the positioning piece may be interfered by the magnetic force of the active magnetic drive device, resulting in unreliable connection between the connecting shaft and the positioning piece, and there is a risk of the knife assembly flying out, and the knife assembly connection reliability is poor. Moreover, since the connecting shaft and the positioning piece are inserted, if the matching gap between the two is large, it will cause the problem of poor connection reliability. If the matching gap between the two is small, it will cause the user to have difficulty in installing the knife assembly, which is not conducive to user operation. Utility Model Content

[0005] The utility model provides a food processing machine with reliable installation. By arranging the knife assembly and the knife disc detachably and optimizing the connection method between the knife assembly and the knife disc, the technical problem that the knife assembly is unreliably connected to the knife disc after installation, causing the knife assembly to be easily separated from the knife disc, is solved while the knife assembly can be disassembled and cleaned. At the same time, the problem that the user has to work hard to install the knife assembly is solved.

[0006] The technical solution adopted by the utility model is:

[0007] The utility model provides a food processing machine with reliable installation, comprising a stirring cup, the stirring cup comprising a cup body, a knife disc fixed at the bottom of the cup body, and a knife assembly installed on the knife disc, the knife disc is fixedly provided with a positioning shaft protruding upward, the knife assembly is detachably installed on the positioning shaft, the knife assembly comprises a connecting shaft and a rotating seat sleeved outside the connecting shaft, a blade is installed on the rotating seat, the rotating seat is connected to the connecting shaft through a bearing so as to rotate relative to the connecting shaft, a convex pin and a screw-on groove are provided between the connecting shaft and the positioning shaft, the convex pin is rotatably engaged in the screw-on groove so that the connecting shaft and the positioning shaft are limited in axial direction.

[0008] The food processing machine provided by the utility model has a positioning shaft protruding upward fixedly provided on the knife disc, and the knife assembly is detachably mounted on the positioning shaft, so that the knife assembly can be disassembled and cleaned, and dead corners can be avoided for cleaning, and the cleaning is thorough and hygienic. Moreover, after the knife assembly is disassembled, other processing parts can be selected to be replaced, or the boiling function can be simply performed, so as to realize the functional expansion of the food processing machine and meet the user's demand for using one machine for multiple purposes. The knife assembly comprises a connecting shaft and a rotating seat sleeved outside the connecting shaft, wherein the rotating seat is connected to the connecting shaft through a bearing so as to rotate relative to the connecting shaft, the connecting shaft is the part of the knife assembly that serves as a connection and installation, and the rotating seat is the part that drives the blade to rotate and cut, the connecting shaft and the rotating seat are connected through a bearing to independently complete their respective functions, and the structure is reliable, by arranging a convex pin and a screw-in groove between the connecting shaft and the positioning shaft, the convex pin is rotated and engaged in the screw-in groove so that the connecting shaft and the positioning shaft are axially limited, when the user installs the knife assembly, it only needs to rotate in alignment with the positioning shaft on the cutter disc so that the convex pin and the screw-in groove are axially limited to complete the installation, compared with the traditional plug-in method, while realizing a reliable connection between the knife assembly and the cutter disc, it can also make the installation process of the knife assembly labor-saving, convenient for users to disassemble and use, and improve the user experience; moreover, the axial limit of the convex pin and the screw-in groove effectively prevents the connection shaft and the positioning shaft from being separated under the centrifugal action during the processing process, and for the handheld food processor, when the user shakes or inverts the food processor, the knife assembly is prevented from being separated from the cutter disc, and the safety of use is improved. Therefore, the food processing machine provided by the utility model is easy to clean, the knife assembly is easy to disassemble and assemble, the knife assembly is reliable to install, and multiple functions can be realized.

[0009] In a preferred embodiment, the food processor comprises a motor for driving the rotating base to rotate unidirectionally, so that the rotation direction of the rotating base is consistent with the installation and screwing direction of the rotating base.

[0010] By making the rotation direction of the rotating seat consistent with the installation screwing direction of the rotating seat, when the motor drives the rotating seat to rotate so that the blade performs cutting operations, the engagement between the convex pin and the screwing groove can be made tighter, thereby effectively preventing the knife assembly from being separated from the knife disc and causing danger. Moreover, without the need for additional structures, the risk of the knife assembly being separated from the knife disc is reduced by simply controlling the rotation direction of the motor, thereby reducing processing and production costs and simplifying the structure of the mixing cup.

[0011] In a preferred embodiment, a stop rib is provided in the screw-on groove to prevent the protruding pin from falling out of the screw-on groove.

[0012] By arranging the stop rib in the screw-on groove, the probability of the convex pin falling out of the screw-on groove during the working process is reduced, the installation and connection of the knife assembly are reliable, and the structure is simple.

[0013] In a preferred embodiment, the convex pin is convexly arranged on the outer side of the positioning shaft, the connecting shaft is sleeved outside the positioning shaft, and the screw-on groove is provided on the side wall of the connecting shaft.

[0014] By sleeve-connecting the connecting shaft outside the positioning shaft, it is convenient to set the connecting shaft as a solid structure, prevent the formation of a dead corner of slag inside the connecting shaft, and facilitate cleaning. When the user installs the knife assembly, the connection shaft is installed according to the position of the connection shaft, which is convenient to operate and reliable in positioning. The convex pin is convexly arranged on the outside of the positioning shaft, and the screwing groove is opened on the side wall of the connecting shaft. The screwing groove can be disassembled and cleaned with the connecting shaft to avoid the situation of slag hiding and difficulty in cleaning when it is located on the positioning shaft. Therefore, it is convenient for users to use and clean.

[0015] In a preferred embodiment, the screw-on groove comprises a guide groove extending vertically and a snap-on groove bent transversely from the upper end of the guide groove, and the lower end of the guide groove is opened for the protruding pin to enter.

[0016] By setting the screw-on groove as a guide groove extending vertically and a locking groove that is laterally bent from the upper end of the guide groove, and the lower end of the guide groove is opened for the convex pin to enter, the convex pin and the screw-on groove can be smoothly engaged, which can adapt to the user's operating habit of installing the knife assembly from top to bottom. When the user places the knife assembly downward, the convex pin slides smoothly along the guide groove, and then the user slightly rotates the knife assembly to make the convex pin enter the laterally bent locking groove. The laterally bent locking groove can reliably limit the axial position of the convex pin to prevent the knife assembly from loosening, and the installation operation of the knife assembly is more flexible and smooth.

[0017] In a preferred embodiment, the food processor further comprises a main machine with a built-in motor, the main machine is arranged below the knife disc, the rotating seat is provided with a first magnetic member, and the motor is provided with a second magnetic member for driving the first magnetic member.

[0018] By setting the main machine below the knife disc, functions such as preparing soy milk are realized. The rotating seat is provided with a first magnetic part, and the motor is provided with a second magnetic part that drives the first magnetic part, so as to realize the transmission between the rotating seat and the motor. The structure is simple, and the knife assembly can be detached while being able to transmit reliably after the knife assembly is installed. Moreover, it is not necessary to set a perforation on the knife disc, thereby reducing the risk of liquid leakage, thereby reducing the risk of water entering the motor and extending the service life of the motor. In addition, the cooperation of the first magnetic part and the second magnetic part reduces the transmission error between the knife assembly and the motor, and reduces the noise during the cooperation process.

[0019] In a preferred embodiment, the motor includes a stator and a rotor rotating around the outer circumference of the stator, and the second magnetic member is arranged on the end surface of the rotor.

[0020] The motor includes a stator and a rotor rotating around the outer circumference of the stator. The second magnetic component is arranged on the end surface of the rotor. In a limited space, the second magnetic component can be arranged in a reasonable position so as to match the position of the first magnetic component and realize reliable driving.

[0021] In a preferred embodiment, the blade and the rotating seat are detachably connected;

[0022] Alternatively, the blade and the rotating seat are fixedly connected;

[0023] Alternatively, the upper end of the connecting shaft passes through the rotating seat to form a lifting portion.

[0024] By detachably connecting the blade and the rotating seat, the user can replace the blade alone to replace other stirring structures to achieve functional expansion; or, by fixedly connecting the blade and the rotating seat, the user can disassemble the rotating seat and the blade as a whole to replace other stirring parts to achieve multiple functions, while avoiding the danger of touching the blade and the formation of a dead corner for slag hiding in the matching gap between the blade and the rotating seat, which is convenient for cleaning. The upper end of the connecting shaft passes through the rotating seat to form a lifting part. When the user needs to take out the knife assembly, he only needs to lift the lifting part formed by the connecting shaft, avoiding the danger of fingers touching the blade and causing cuts, etc., which is convenient and safe to use.

[0025] In a preferred embodiment, the food processor further comprises a stirring member, and the stirring member and the knife assembly are replaceably mounted on the positioning shaft.

[0026] By providing a stirring member in the food processor, the stirring member and the knife assembly can be replaceably installed on the positioning shaft. Not only can the knife assembly be used to achieve the functions of cutting and crushing, such as preparing soy milk or minced meat, but the stirring member, such as a whipping stick or a dough kneading member, can also be used to achieve other functions such as kneading and whipping. This makes the food processor more functional and meets the user's needs for multiple uses of one machine.

[0027] In a preferred embodiment, the food processor further comprises a main machine with a built-in motor, the main machine is arranged above the cup body, and the motor is drivingly connected to the rotating seat.

[0028] By arranging the main machine above the cup body, the transmission structure between the motor and the rotating seat can be simplified, and the user can use it flexibly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0030] Figure 1 It is a structural schematic diagram of a food processing machine in a working state in the implementation example 1 of the utility model;

[0031] Figure 2 This is a schematic diagram of the exploded structure of the knife assembly and the knife disc in Example 1 of the present utility model;

[0032] Figure 3 This is a schematic diagram of the installation structure of the connecting shaft and the cutter disc in Example 1 of the present utility model;

[0033] Figure 4 This is a schematic diagram of the exploded structure of the connecting shaft and the cutter disc in Example 1 of the present utility model;

[0034] Figure 5 This is a schematic diagram of the coordination of the knife assembly, the knife disc and the motor in Example 1 of the present utility model;

[0035] Figure 6 This is a schematic diagram of the structure of the knife assembly in Example 1 of the present utility model;

[0036] Figure 7 It is a structural schematic diagram of another working state of the food processing machine in the implementation example 1 of the utility model;

[0037] Figure 8 This is a schematic diagram of the structure of the food processor in Example 2 of the present invention.

[0038] Explanation of the reference numerals: 10, cup body; 20, blade disc; 21, positioning shaft; 30, blade assembly; 31, connecting shaft; 311, lifting part; 32, rotating seat; 33, blade; 34, bearing; 35, shaft seal; 41, convex pin; 42, screw-on groove; 421, guide groove; 422, engaging groove; 423, anti-retraction rib; 50, motor; 51, stator; 52, rotor; 60, main machine; 70, first magnetic part; 80, second magnetic part; 90, stirring part. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present invention and the features in each embodiment may be combined with each other without conflict.

[0041] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0044] like Figure 1-7 As shown, the utility model provides a food processor with reliable installation in implementation example 1, including a mixing cup, such as Figure 1 As shown, the blending cup includes a cup body 10, a blade disc 20 fixed to the bottom of the cup body 10, and a blade assembly 30 installed on the blade disc 20. A positioning shaft 21 protruding upward is fixedly provided on the blade disc 20. The blade assembly 30 is detachably installed on the positioning shaft 21. The blade assembly 30 includes a connecting shaft 31 and a rotating seat 32 sleeved outside the connecting shaft 31. A blade 33 is installed on the rotating seat 32. The rotating seat 32 is connected to the connecting shaft 31 through a bearing 34 so as to rotate relative to the connecting shaft 31. A convex pin 41 and a screw-on groove 42 are provided between the connecting shaft 31 and the positioning shaft 21. The convex pin 41 is rotatably engaged in the screw-on groove 42 so that the connecting shaft 31 and the positioning shaft 21 are limited in the axial direction.

[0045] The food processor provided in this embodiment has a positioning shaft 21 protruding upward fixedly provided on the blade disc 20, and the knife assembly 30 is detachably mounted on the positioning shaft 21, so that the knife assembly 30 can be disassembled and cleaned, and dead corners can be avoided for cleaning, and the cleaning is thorough and hygienic. After the knife assembly 30 is disassembled, other processing parts can be selected to be replaced, or the cooking function can be simply performed, so as to expand the functions of the food processor and meet the user's demand for multiple uses of one machine. The knife assembly 30 includes a connecting shaft 31 and a rotating seat 32 sleeved outside the connecting shaft 31, wherein the rotating seat 32 is connected to the connecting shaft 31 through a bearing 34 so as to rotate relative to the connecting shaft 31. The connecting shaft 31 is the part of the knife assembly 30 that serves as a connection and installation, and the rotating seat 32 is the part that drives the blade 33 to rotate and cut. The connecting shaft 31 and the rotating seat 32 are connected through the bearing 34 to independently perform their respective functions, and the structure is reliable. By arranging a convex pin 41 and a screw-in groove 42 between the connecting shaft 31 and the positioning shaft 21, the convex pin 41 is rotatably engaged in the screw-in groove 42 so that the connecting shaft 31 and the positioning shaft 21 are limited in the axial direction. When the user installs the knife assembly 3 0, it only needs to rotate in alignment with the positioning shaft 21 on the cutter disc 20 so that the convex pin 41 and the screw-in groove 42 are axially limited to complete the installation. Compared with the traditional plug-in method, while realizing the reliable connection between the knife assembly 30 and the cutter disc 20, it can also make the installation process of the knife assembly 30 labor-saving, convenient for users to disassemble and use, and improve the user experience; moreover, the axial limitation of the convex pin 41 and the screw-in groove 42 effectively prevents the connection shaft 31 and the positioning shaft 21 from being separated under the centrifugal action during the processing process, and for the handheld food processor, when the user shakes or inverts the food processor, it prevents the knife assembly 30 from being separated from the cutter disc 20, and the safety of use is improved. Therefore, the food processor provided by the utility model is easy to clean, the knife assembly 30 is easy to disassemble and assemble, the knife assembly 30 is reliable to install, and it can also realize multiple functions.

[0046] It is understandable that the cup body 10 and the blade disc 20 in the present invention can be optionally installed separately. In this way, the thickness of the blade disc 20 is not limited by the material of the cup body 10, which has good heat conduction and can achieve reliable transmission through air. In fact, the cup body 10 and the blade disc 20 can also be integrally formed to facilitate overall processing and manufacturing. Optionally, the food processor also includes a heating structure, for example, a heating tube fixed under the blade disc 20. Optionally, as Figure 2 As shown, a shaft seal 35 is sleeved on the outer periphery of the bearing.

[0047] The utility model does not limit the overall shape of the food processing machine, for example:

[0048] Implementation example 1, such as Figure 1-7 As shown, the food processor also includes a host 60 with a built-in motor 50, the host 60 is arranged below the knife disc 20, and the cup body 10 can be fixedly installed on the host or detachably installed on the host. Figure 1, Figure 2 As shown, the rotating seat 32 is provided with a first magnetic member 70 , and the motor 50 is provided with a second magnetic member 80 for driving the first magnetic member 70 .

[0049] In this implementation example, Figure 5 As shown, the motor 50 includes a stator 51 and a rotor 52 rotating around the outer circumference of the stator 51 , and the second magnetic member 80 is disposed on the end surface of the rotor 52 .

[0050] Of course, in this embodiment, not only the outer rotor motor 50 mentioned above can be used, but actually an inner rotor motor 50 can also be used, that is, the motor 50 includes a rotor 52 and a stator 51 arranged from the inside to the outside, and the second magnetic member 80 is arranged on the rotor 52.

[0051] Optionally, refer to Figure 5 , Figure 6 The first magnetic member 70 and the second magnetic member 80 are respectively two magnet groups of the Halbach magnetic array model distributed in an annular shape, which maximize the suction force between the rotating seat 32 and the motor 50 under the condition of limited magnetic flux of the magnets to achieve reliable transmission.

[0052] Of course, in addition to using the motor 50 to drive the second magnetic member 80, in fact, electromagnetic transmission in the air can also be achieved by setting a magnet on the rotating seat 32 and setting an energized coil in the main unit 60.

[0053] This embodiment can achieve functions such as preparing soybean milk and rice paste by setting the host 60 below the knife disc 20. The rotating seat 32 is provided with a first magnetic member 70, and the motor 50 is provided with a second magnetic member 80 for driving the first magnetic member 70, so as to achieve air transmission between the rotating seat 32 and the motor 50. The structure is simple, and the knife assembly 30 can be detached while being able to transmit reliably after the knife assembly 30 is installed. Moreover, it is not necessary to set a perforation in the knife disc 20, thereby reducing the risk of liquid leakage, reducing the risk of water entering the motor 50, and extending the service life of the motor 50. In addition, the cooperation of the first magnetic member 70 and the second magnetic member 80 reduces the transmission error between the knife assembly 30 and the motor 50, and reduces the noise during the cooperation process.

[0054] By adopting the motor 50, the motor 50 includes a stator 51 and a rotor 52 rotating around the outer circumference of the stator 51, and the second magnetic component 80 is arranged on the end surface of the rotor 52. In a limited space, the second magnetic component 80 can be arranged in a reasonable position so that it can match the position of the first magnetic component 70 to achieve reliable driving.

[0055] Implementation Example 2, such as Figure 8 As shown, the food processor further includes a host 60 with a motor 50 therein. The host 60 is disposed above the cup body 10 , and the motor 50 is drivingly connected to the rotating seat 32 .

[0056] By arranging the main unit 60 above the cup body 10, a cup cover can be arranged above the cup body 10 or the main unit 60 can be integrally formed with the cup cover, and the driving end of the motor 50 passes through the cup cover to drive the upper end of the rotating seat 32 to realize transmission. The transmission structure between the motor 50 and the rotating seat 32 is simplified, and the user can use it flexibly.

[0057] In a preferred embodiment of the present invention, referring to Example 1 or Example 2, the food processor includes a motor 50 that drives the rotating seat 32 to rotate in one direction, so that the rotation direction of the rotating seat 32 is consistent with the installation and screwing direction of the rotating seat. Figure 3 As shown, the user rotates clockwise from top to bottom so that the convex pin is engaged in the screw-on groove in a clockwise direction. Then, the motor is configured to drive the rotating seat to rotate clockwise to strengthen the connection between the convex pin and the screw-on groove.

[0058] Preferably, if Figure 4 As shown, two protruding pins are symmetrically arranged, and the screw-in groove cooperates with the protruding pins to improve the coordination stability and reliability of the positioning shaft and the connecting shaft.

[0059] By making the rotation direction of the rotating seat 32 consistent with the rotation and engagement direction of the convex pin 41, when the motor 50 drives the rotating seat 32 to rotate so that the blade 33 performs a cutting operation, the engagement between the convex pin 41 and the screwing groove 42 can be made tighter, thereby effectively preventing the knife assembly 30 from being separated from the knife disc 20 and causing danger. Moreover, without the need for additional structures, the risk of the knife assembly 30 being separated from the knife disc 20 is reduced only by controlling the rotation direction of the motor 50, so that the processing and production costs are reduced and the structure of the mixing cup is simplified.

[0060] Of course, in order to make the connection between the connecting shaft and the positioning shaft more reliable, Figure 4 As shown, in a preferred embodiment, a retaining rib 423 is provided in the screw-on groove 42 to prevent the protruding pin 41 from slipping out of the screw-on groove 42 .

[0061] By arranging the stop rib 423 in the screw-on groove 42, the probability of the protruding pin 41 slipping out of the screw-on groove 42 during operation is reduced, and the installation and connection of the knife assembly 30 are reliable and the structure is simple.

[0062] In a preferred embodiment, Figure 3 , Figure 4 As shown, the protruding pin 41 is protrudingly provided on the outer side of the positioning shaft 21 , the connecting shaft 31 is sleeved on the outer side of the positioning shaft 21 , and the screwing groove 42 is provided on the side wall of the connecting shaft 31 .

[0063] By sleeve-fitting the connecting shaft 31 outside the positioning shaft 21, it is convenient to set the connecting shaft 31 as a solid structure, prevent the formation of a dead corner of slag inside the connecting shaft 31, and facilitate cleaning. When the user installs the knife assembly 30, the connection shaft 31 is installed according to the position of the connection shaft 31, which is convenient to operate and reliable in positioning. The convex pin 41 is convexly arranged on the outside of the positioning shaft 21, and the screw-in groove 42 is opened on the side wall of the connecting shaft 31. The screw-in groove 42 can be disassembled and cleaned along with the connecting shaft 31, avoiding the situation of slag accumulation and difficulty in cleaning when it is located on the positioning shaft 21. Therefore, it is convenient for users to use and clean.

[0064] Of course, in practice, the positions of the above-mentioned convex pin 41 and the screw-on groove 42 can also be swapped, that is, the convex pin 41 and the screw-on groove 42 are respectively arranged on the connecting shaft 31 and the positioning shaft 21; or, a slot is arranged at the upper end of the positioning shaft 21 or the positioning shaft 21 is arranged as a hollow structure for the connecting shaft 31 to be inserted, etc.

[0065] More preferably, if Figure 4 As shown, the screwing groove 42 includes a vertically extending guide groove 421 and a snap-fit ​​groove 422 that is laterally bent from the upper end of the guide groove 421. The lower end of the guide groove 421 is opened for the protruding pin 41 to enter. Optionally, a stop rib 423 is provided at the bending position of the guide groove 421 and the snap-fit ​​groove 422.

[0066] By setting the screw-on groove 42 as a vertically extending guide groove 421 and a locking groove 422 that is laterally bent from the upper end of the guide groove 421, and the lower end of the guide groove 421 is opened for the convex pin 41 to enter, the convex pin 41 and the screw-on groove 42 are smoothly engaged, which can adapt to the user's operating habit of installing the knife assembly 30 from top to bottom. When the user places the knife assembly 30 downward, the convex pin 41 slides smoothly along the guide groove 421, and then the user slightly rotates the knife assembly 30 to make the convex pin 41 enter the laterally bent locking groove 422. The laterally bent locking groove 422 can reliably limit the convex pin 41 axially to prevent the knife assembly 30 from loosening, and the installation operation of the knife assembly 30 is more flexible and smooth.

[0067] It should be noted that the present invention does not limit the disassembly method of the blade assembly 30. For example, the blade 33 and the rotating seat 32 are detachably connected. By detachably connecting the blade 33 and the rotating seat 32, the user can replace the blade 33 alone to replace other stirring structures to achieve functional expansion.

[0068] Alternatively, the blade 33 and the rotating seat 32 are fixedly connected; the user can disassemble the rotating seat 32 and the blade 33 as a whole and replace other stirring parts 90 to achieve multiple functions. At the same time, it avoids the danger of touching the blade 33 and avoids the formation of a dead corner for slag hiding in the matching gap between the blade 33 and the rotating seat 32, which is convenient for cleaning.

[0069] In a preferred embodiment, Figure 1 As shown, the upper end of the connecting shaft 31 passes through the rotating seat 32 to form a lifting portion 311. The upper end of the connecting shaft 31 passes through the rotating seat 32 to form a lifting portion. When the user needs to take out the knife assembly 30, he only needs to lift the lifting portion formed by the connecting shaft 31, avoiding the danger of fingers touching the blade 33 and causing cuts, etc., which is convenient and safe to use.

[0070] In a preferred embodiment, Figure 7 As shown, the food processor further comprises a stirring member 90, and the stirring member 90 and the knife assembly 30 are replaceably mounted on the positioning shaft 21. The stirring member 90 is a whipping stick, or the stirring member 90 is a dough kneading member or other processing member without a blade.

[0071] Therefore, by further providing a stirring member 90 in the food processor, the stirring member 90 and the knife assembly 30 can be replaceably installed on the positioning shaft 21, and not only the knife assembly 30 can be used to achieve the cutting and crushing functions, such as preparing soy milk or minced meat, but the stirring member 90, such as a whipping stick or a dough kneading member, can also be used to achieve other functions such as kneading and whipping, and the cooking function can be performed separately after the knife assembly 30 and the stirring member 90 are disassembled, thereby diversifying the functions of the food processor and meeting the user's needs for multiple uses of one machine.

[0072] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0073] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0074] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A food processor with reliable installation, comprising a mixing cup, wherein the mixing cup comprises a cup body, a knife disc fixed at the bottom of the cup body, and a knife assembly mounted on the knife disc, characterized in that: The knife disc is fixed with a positioning shaft protruding upward, and the knife assembly is detachably mounted on the positioning shaft. The knife assembly includes a connecting shaft and a rotating seat sleeved outside the connecting shaft, and a blade is mounted on the rotating seat. The rotating seat is connected to the connecting shaft through a bearing so as to rotate relative to the connecting shaft. A convex pin and a screw-in groove are provided between the connecting shaft and the positioning shaft, and the convex pin is rotatably engaged in the screw-in groove so that the connecting shaft and the positioning shaft are limited in axial direction.

2. A food processing machine with reliable installation according to claim 1, characterized in that: The food processor comprises a motor for driving the rotating seat to rotate in one direction, so that the rotating direction of the rotating seat is consistent with the installation and screwing direction of the rotating seat.

3. A food processing machine with reliable installation according to claim 1, characterized in that: A stop rib is arranged in the screw-on groove to prevent the protruding pin from escaping from the screw-on groove.

4. A food processing machine with reliable installation according to claim 1, characterized in that: The convex pin is convexly arranged on the outer side of the positioning shaft, the connecting shaft is sleeved outside the positioning shaft, and the screw-on groove is arranged on the side wall of the connecting shaft.

5. A food processing machine with reliable installation according to claim 4, characterized in that: The screw-on groove comprises a guide groove extending vertically and a clamping groove bent transversely from the upper end of the guide groove, and the lower end of the guide groove is opened for the convex pin to enter.

6. A food processing machine with reliable installation according to claim 1, characterized in that: The food processor also includes a main machine with a motor installed therein, the main machine is arranged below the knife disc, the rotating seat is provided with a first magnetic component, and the motor is provided with a second magnetic component for driving the first magnetic component.

7. A food processing machine with reliable installation according to claim 6, characterized in that: The motor includes a stator and a rotor rotating around the outer circumference of the stator, and the second magnetic member is arranged on the end surface of the rotor.

8. A food processing machine with reliable installation according to claim 1, characterized in that: The blade and the rotating seat are detachably connected; Alternatively, the blade and the rotating seat are fixedly connected; Alternatively, the upper end of the connecting shaft passes through the rotating seat to form a lifting portion.

9. A food processing machine with reliable installation according to claim 1, characterized in that: The food processor further comprises a stirring member, wherein the stirring member and the knife assembly are replaceably mounted on the positioning shaft.

10. A food processing machine with reliable installation according to claim 1, characterized in that: The food processor also includes a main machine with a built-in motor, the main machine is arranged above the cup body, and the motor is transmission-connected to the rotating seat.

Images