Food processor with good sealing effect

Abstract

The utility model discloses a food processor with good sealing effect, relates to the field of life electric appliances, and comprises a cup body with a built-in stirring component and a motor for driving the stirring component to rotate, the stirring component comprises a stirring knife, a driven magnetic disk component and a shell, the shell comprises an upper shell and a bottom cover, the upper shell and the bottom cover are enclosed to form a closed mounting cavity, and the motor is arranged in the cup body. The driven magnetic disc assembly is arranged in the mounting cavity, so that the mounting cavity is isolated from the outside, and the situation that in the food material processing process, slurry and the like enter the mounting cavity through a gap between the upper shell and the bottom cover, so that friction resistance of a bearing and other parts in the mounting cavity is increased, and a stirring piece rotates unstably and even is blocked and cannot rotate is avoided; the sealing performance of the mounting cavity is guaranteed, the rotating stability of the stirring cutter is guaranteed, the service life of the stirring assembly is prolonged, meanwhile, the cleanliness in the shell is guaranteed, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a food processing machine with good sealing effect. Background Art

[0002] Existing food processors usually include a main unit and a detachable cup body located above the main unit. The main unit is equipped with a motor, and the cup body is equipped with a stirring piece connected to the motor. When using the food processor, the user places the food in the cup body, and the motor drives the stirring piece to rotate at high speed to process the food. The existing method of realizing the transmission between the motor and the stirring piece is mainly to set a lower connector on the motor shaft of the motor, and at the same time set an upper connector at the bottom end of the blade shaft of the stirring piece. After the cup body is installed in place, the upper and lower connectors cooperate to connect to realize the transmission of torque. However, this transmission method requires a through hole to be opened in the bottom wall of the cup body for the upper connector to pass through, and bearings and seals to be set in the through hole to ensure the smoothness of rotation and the sealing of the cup body, resulting in a more complicated structure, and there will be a cleaning dead corner at the bottom of the cup body, which is difficult for users to clean it thoroughly.

[0003] To address the aforementioned issues, some manufacturers design a blender that includes a blending blade, a driven magnetic disk, a mounting bracket for securing the driven magnetic disk, and a housing that houses the driven magnetic disk and mounting bracket. The mounting bracket includes a blade shaft that extends out of the housing and connects to the blending blade. A driving magnetic disk is also mounted on the motor shaft. Once the cup is installed, the driving magnetic disk and the driven magnetic disk magnetically engage to achieve torque transmission, eliminating the need for drilling holes in the bottom wall of the cup, eliminating blind spots, and ensuring a thorough cleaning of the cup. To reduce friction between the bottom of the mounting bracket and the driven magnetic disk and the bottom wall of the housing, an upper bearing is typically installed on the blade shaft to secure the entire mounting bracket and driven magnetic disk within the housing. However, in actual use, when processing food, slurry and other substances can enter the housing, increasing frictional resistance in components such as the bearings. Furthermore, friction occurs between the mounting bracket and the inner wall of the housing, causing the blender to rotate unsteadily or even become stuck. Furthermore, odors and even mold can develop within the housing, seriously impacting the consumer experience. Utility Model Content

[0004] The purpose of the utility model is to provide a food processor with good sealing effect, so as to solve the problem in the existing food processor that the shell of the stirring assembly for accommodating the driven magnetic disk and bearings and other components is easily penetrated by slurry, resulting in increased friction resistance of the bearings and other components, causing the stirring element to rotate unstably or even get stuck and unable to rotate.

[0005] To achieve the above-mentioned purpose, the utility model provides a food processor with good sealing effect, including a cup body with a built-in stirring assembly and a motor arranged under the cup body and driving the stirring assembly to rotate, the stirring assembly includes a stirring blade, a driven magnetic disk assembly and a shell, the shell includes an upper shell and a bottom cover, the upper shell and the bottom cover are enclosed to form a closed installation cavity, the driven magnetic disk assembly is arranged in the installation cavity, and the driven magnetic disk assembly is provided with a blade shaft extending out of the shell and connected to the stirring blade.

[0006] The present application is configured to include a stirring blade and a driven magnetic disk assembly through a stirring assembly. At the same time, an active magnetic disk that magnetically cooperates with the driven magnetic disk assembly is also provided at the top end of the motor shaft of the motor. After the user places the cup body on the host, the active magnetic disk and the driven magnetic disk assembly are magnetically cooperated, so that when the motor drives the active magnetic disk to rotate, the active magnetic disk drives the driven magnetic disk assembly to rotate through the magnetic attraction force with the driven magnetic disk assembly, thereby causing the stirring blade to rotate. Compared with the existing method of requiring upper and lower connecting heads to realize torque transmission, the hole at the bottom of the cup body is eliminated, and thus the seals, bearings and other structures are eliminated, which helps to simplify the cup body structure, while reducing cleaning dead corners, making it convenient for users to clean the cup body.

[0007] At the same time, the shell includes an upper shell and a bottom cover, so that when assembling the stirring assembly, the assembler can fix the driven magnetic disk assembly in the upper shell and then close the bottom cover with the upper shell to realize the assembly of the stirring assembly. The assembly is convenient and quick, which helps to improve the assembly efficiency. At the same time, the upper shell and the bottom cover enclose a closed installation cavity to isolate the installation cavity from the outside world, and prevent slurry and the like from entering the installation cavity through the gap between the upper shell and the bottom cover during the food processing process, resulting in increased friction resistance of components such as bearings in the installation cavity, or causing friction between the driven magnetic disk assembly and the inner wall of the shell, causing the stirring element to rotate unstably or even get stuck and unable to rotate, as well as generating odor or even mold in the shell. The airtightness of the installation cavity is ensured, and the protection of various components in the installation cavity is realized, thereby ensuring the stability of the stirring blade rotation, extending the service life of the stirring assembly, and ensuring the cleanliness of the shell, improving the user experience.

[0008] In a preferred implementation of a food processor with good sealing effect, the installation cavity includes a first cavity for accommodating the driven magnetic disk assembly, and a second cavity provided outside the first cavity.

[0009] By configuring the mounting cavity to include a first cavity for accommodating the driven disk assembly and a second cavity disposed outside the first cavity, on the one hand, the gap between the upper shell and the bottom cover after assembly is located within the second cavity. If some liquid enters the second cavity through the gap between the upper shell and the bottom cover, it can be retained within the second cavity, preventing the liquid from directly entering the first cavity, further preventing slurry and the like from entering the first cavity and contaminating the various components. On the other hand, the noise generated during the high-speed rotation of the various components in the first cavity can be muffled and reduced by the first cavity, while further reduced by the second cavity, thereby improving the overall noise reduction effect. At the same time, the radial size of the entire shell can be increased, while the driven disk assembly located in the first cavity is relatively small, thereby improving the rotational stability of the entire stirring assembly.

[0010] In a preferred implementation of a food processor with good sealing effect, the bottom cover is provided with an upwardly protruding step portion, the inner circle of the step portion cooperates with the upper shell to form a first cavity, and the outer circle of the step portion cooperates with the upper shell to form a second cavity.

[0011] By providing the bottom cover with an upwardly projecting step, the active magnetic disk can be positioned within a groove formed below the step, further reducing the distance between the active magnetic disk and the driven magnetic disk assembly. This helps to improve the magnetic attraction between the active and driven magnetic disk assemblies, thereby reducing the thickness of the active and driven magnetic disk assemblies and improving the overall compactness of the structure. Furthermore, the inner ring of the step cooperates with the upper shell to form a first cavity, while the outer ring of the step cooperates with the upper shell to form a second cavity. This eliminates the need for separate structural components to isolate the first and second cavities, simplifies the internal components, and helps reduce the weight of the stirring assembly, making its rotation more stable.

[0012] In a preferred implementation of a food processor with good sealing effect, a welding portion for welding is provided between the bottom cover and the upper shell.

[0013] By providing a welding portion for welding between the bottom cover and the upper shell, the assembler can achieve a fixed connection between the bottom cover and the upper shell by welding at the welding portion after assembling the bottom cover and the upper shell in place, and at the same time achieve a sealed connection between the bottom cover and the upper shell, thereby ensuring the sealing effect of the installation cavity and effectively avoiding the situation where there is a gap at the connection position between the bottom cover and the upper shell, which allows slurry and the like to enter the installation cavity through the gap, thereby further improving the protection of various components in the installation cavity.

[0014] In a preferred implementation of a food processor with good sealing effect, the upper shell is provided with a downwardly extending annular rib, the bottom cover is arranged in the annular rib, and the bottom end of the bottom cover is higher than the bottom end of the annular rib to form a welding portion between the two.

[0015] By setting the bottom end of the bottom cover higher than the bottom end of the ring rib to form a welding portion between the two, it is ensured that the assembler can smoothly weld the bottom cover and the upper shell. At the same time, the bottom cover is located within the ring rib, so that the ring rib can achieve a radial limiting effect on the bottom cover, which can improve the stability of the connection between the bottom cover and the upper shell. At the same time, the assembler does not need to always limit the bottom cover radially, which helps to improve assembly efficiency.

[0016] In a preferred implementation of a food processor with good sealing effect, the upper shell is provided with a downwardly extending ring rib, the bottom cover is arranged inside the ring rib, the ring rib is provided with a flange extending inward and abutting against the bottom of the bottom cover, and the bottom cover is clamped between the flange and the upper shell.

[0017] By providing the annular rib with a flange extending inward and abutting against the bottom of the bottom cover, the bottom cover is clamped between the flange and the upper shell, so that the bottom cover and the upper shell can be fastened and sealed through a simple riveting process, which helps to simplify the assembly steps and reduce production costs.

[0018] In a preferred implementation of a food processor with good sealing effect, the upper shell and / or the bottom cover is provided with a vent hole communicating with the mounting cavity, and an outer cover of the vent hole is provided with a waterproof breathable membrane.

[0019] By providing a waterproof and breathable membrane on the outer side of the air vent, the installation cavity can be ventilated with the outside world while preventing slurry and the like from entering the installation cavity, thereby effectively avoiding the situation where the components in the installation cavity generate high heat when rotating at high speed, resulting in high internal air pressure and damage to the shaft seal and loss of sealing effect. It can effectively balance the pressure between the installation cavity and the outside world, help to extend the service life of the shaft seal, and ensure the sealing effect of the installation cavity.

[0020] In a preferred implementation of the food processor with good sealing effect, a sealing member is further clamped between the upper shell and the bottom cover.

[0021] By clamping a seal between the upper shell and the bottom cover, the sealing of the connection between the upper shell and the bottom cover is further improved. At the same time, with the help of the compressibility of the seal, the production errors and assembly errors of the upper shell and the bottom cover can be offset, making the connection between the two tighter.

[0022] In a preferred implementation of a food processor with good sealing effect, the upper shell is provided with an escape opening for the knife shaft to pass through, and a shaft seal cooperating with the knife shaft is provided at the escape opening.

[0023] By providing a shaft seal that cooperates with the knife shaft at the avoidance port, the avoidance port is sealed to prevent slurry and the like from entering the shell through the gap between the avoidance port and the knife shaft during food processing, thereby preventing the friction resistance of components such as the upper bearing from increasing, and generating odor or even mold in the installation cavity, thereby ensuring the cleanliness of the installation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 of the present invention. In the drawings:

[0025] Figure 1 This is a cross-sectional view of a food processing machine in one embodiment of the present invention;

[0026] Figure 2 This is a cross-sectional view of a stirring assembly in one embodiment of the present invention;

[0027] Figure 3 This is a cross-sectional view of a stirring assembly in another embodiment of the present invention;

[0028] Figure 4 This is a cross-sectional view of a stirring assembly in another embodiment of the present invention;

[0029] Figure 5 for Figure 4 Enlarged view of part A in the middle.

[0030] List of parts and reference numerals:

[0031] 1-cup body; 2-motor, 21-active magnetic disk; 3-stirring blade; 4-driven magnetic disk assembly, 41-mounting bracket, 411-blade shaft, 42-permanent magnet; 5-isolating ring; 6-shell, 61-upper shell, 611-air vent, 612-ring rib, 6121-flanged edge, 62-bottom cover, 621-step portion, 63-installation cavity, 631-first cavity, 632-second cavity; 7-waterproof breathable membrane; 8-bearing; 9-shaft seal. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0033] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can 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 implementation methods disclosed below.

[0034] like Figures 1 to 5As shown, the utility model provides a food processor with good sealing effect, including a cup body 1 with a built-in stirring assembly and a motor 2 arranged below the cup body 1 and driving the stirring assembly to rotate, the stirring assembly includes a stirring blade 3, a driven magnetic disk assembly 4 and a shell 6, the shell 6 includes an upper shell 61 and a bottom cover 62, the upper shell 61 and the bottom cover 62 enclose a closed installation cavity 63, the driven magnetic disk assembly 4 is arranged in the installation cavity 63, and the driven magnetic disk assembly 4 is provided with a blade shaft 411 extending out of the shell 6 and connected to the stirring blade 3. Specifically, as shown in FIG. Figure 2 As shown, the driven magnetic disk assembly 4 includes a permanent magnet 42 and a mounting bracket 41 for fixing the permanent magnet 42 .

[0035] The present application is configured to include a stirring blade 3 and a driven magnetic disk assembly 4 through a stirring assembly. At the same time, the top end of the motor 2 shaft of the motor 2 is also provided with an active magnetic disk 21 that magnetically cooperates with the driven magnetic disk assembly 4. After the user places the cup body 1 on the host, the active magnetic disk 21 and the driven magnetic disk assembly 4 are magnetically matched, so that when the motor 2 drives the active magnetic disk 21 to rotate, the active magnetic disk 21 drives the driven magnetic disk assembly 4 to rotate through the magnetic attraction force with the driven magnetic disk assembly 4, thereby causing the stirring blade 3 to rotate. Compared with the existing method of requiring torque transmission by setting upper and lower connecting heads, the hole at the bottom of the cup body 1 is eliminated, and thus the seal and bearing 8 and other structures are eliminated, which helps to simplify the structure of the cup body 1, while reducing cleaning dead corners and making it convenient for users to clean the cup body 1.

[0036] The housing 6 includes an upper housing 61 and a bottom cover 62. When assembling the stirring assembly, the assembler can secure the driven disk assembly 4 within the upper housing 61 before closing the bottom cover 62 with the upper housing 61. This allows for quick and easy assembly, improving assembly efficiency. The upper housing 61 and the bottom cover 62 enclose a closed mounting cavity 63, isolating the mounting cavity 63 from the outside world. This prevents slurry, etc., from entering the mounting cavity 63 through the gap between the upper housing 61 and the bottom cover 62 during food processing, potentially increasing frictional resistance of components such as the bearing 8 within the mounting cavity 63 or causing friction between the driven disk assembly 4 and the inner wall of the housing 6, resulting in unstable or even stuck rotation of the stirring element, as well as odor and even mold within the housing 6. This ensures the airtightness of the mounting cavity 63 and protects the components within it, thereby ensuring the stable rotation of the stirring blade 3 and extending the service life of the stirring assembly. It also ensures a clean and tidy interior of the housing 6, enhancing the user experience.

[0037] As a preferred embodiment of the present application, Figure 2 As shown, the installation cavity 63 includes a first cavity 631 for accommodating the driven disk assembly 4 , and a second cavity 632 disposed outside the first cavity 631 .

[0038] By configuring the mounting cavity 63 to include a first cavity 631 for accommodating the driven disk assembly 4 and a second cavity 632 disposed outside the first cavity 631, the gap between the upper shell 61 and the bottom cover 62 after assembly is located within the second cavity 632. If some liquid enters the second cavity 632 through the gap between the upper shell 61 and the bottom cover 62, it can be retained in the second cavity 632, preventing the liquid from entering the first cavity 631. This achieves a double seal and further prevents slurry and other liquids from entering the first cavity 631 and contaminating the various components. Furthermore, noise generated during the high-speed rotation of the various components within the first cavity 631 can be muffled and reduced by the first cavity 631, while further reduced by the second cavity 632, thereby enhancing the overall noise reduction effect. This also allows the radial dimensions of the entire shell 6 to be larger, while the driven disk assembly 4 within the first cavity 631 is relatively smaller, thereby improving the rotational stability of the entire stirring assembly.

[0039] It should be noted that the present application does not specifically limit the forming of the first cavity 631 and the second cavity 632, which may be any one of the following embodiments:

[0040] Example 1: Figure 2 As shown, in this embodiment, the bottom cover 62 is provided with an upwardly protruding step portion 621 , the inner circle of the step portion 621 cooperates with the upper shell 61 to form a first cavity 631 , and the outer circle of the step portion 621 cooperates with the upper shell 61 to form a second cavity 632 .

[0041] By providing the bottom cover 62 with an upwardly protruding step 621, the active magnetic disk 21 can be positioned within the groove formed below the step 621, further reducing the distance between the active magnetic disk 21 and the driven magnetic disk assembly 4. This helps to improve the magnetic attraction between the active magnetic disk 21 and the driven magnetic disk assembly 4, thereby reducing the thickness of the active magnetic disk 21 and the driven magnetic disk assembly 4, and improving the compactness of the overall structure. At the same time, the inner ring of the step 621 cooperates with the upper shell 61 to form a first cavity 631, and the outer ring of the step 621 cooperates with the upper shell 61 to form a second cavity 632. This eliminates the need for separate structural components to isolate the first cavity 631 and the second cavity 632, simplifies the internal structural components, and helps reduce the weight of the stirring assembly, making its rotation more stable.

[0042] Example 2: Figure 2 As shown, in this embodiment, the stirring assembly also includes an isolation ring 5, the top end of the isolation ring 5 abuts against the upper shell 61, and the bottom end is isolated between the second cavity 632 and the driven magnetic disk 8 and abuts against the bottom cover 62 to separate the installation cavity 63 into a first cavity 631 and a second cavity 632.

[0043] It should be noted that the present application does not specifically limit the connection method between the bottom cover 62 and the upper shell 61, which can be any one of the following embodiments:

[0044] Example 1: Figure 2 As shown, in this embodiment, a welding portion for welding is provided between the bottom cover 62 and the upper shell 61 .

[0045] By providing a welding portion for welding between the bottom cover 62 and the upper shell 61, the assembler can achieve a fixed connection between the bottom cover 62 and the upper shell 61 by welding at the welding portion after assembling the bottom cover 62 and the upper shell 61 in place, and at the same time achieve a sealed connection between the bottom cover 62 and the upper shell 61, ensuring the sealing effect of the installation cavity 63, and effectively avoiding the situation where there is a gap at the connection position between the bottom cover 62 and the upper shell 61, which allows slurry and the like to enter the installation cavity 63 through the gap, further improving the protection of the various components in the installation cavity 63.

[0046] Furthermore, if Figure 2 As shown, the upper shell 61 is provided with a downwardly extending annular rib 612 , the bottom cover 62 is covered in the annular rib 612 , and the bottom end of the bottom cover 62 is higher than the bottom end of the annular rib 612 to form a welding portion therebetween.

[0047] By setting the bottom end of the bottom cover 62 to be higher than the bottom end of the ring rib 612 to form a welding portion between the two, it is ensured that the assembler can smoothly weld the bottom cover 62 and the upper shell 61. At the same time, the bottom cover 62 is located in the ring rib 612, so that the ring rib 612 can achieve a radial limiting effect on the bottom cover 62, which can improve the stability of the connection between the bottom cover 62 and the upper shell 61. At the same time, the assembler does not need to always limit the bottom cover 62 radially, which helps to improve assembly efficiency.

[0048] Example 2: Figure 4 、 Figure 5 As shown, in this embodiment, the upper shell 61 is provided with a ring rib 612 extending downward, the bottom cover 62 is covered in the ring rib 612, the ring rib 612 is provided with a flange 6121 extending inward and abutting against the bottom of the bottom cover 62, and the bottom cover 62 is clamped between the flange 6121 and the upper shell 61.

[0049] By providing the annular rib 612 with a flange 6121 extending inward and abutting against the bottom of the bottom cover 62, the bottom cover 62 is clamped between the flange 6121 and the upper shell 61, so that the bottom cover 62 and the upper shell 61 can be fastened and sealed by a simple riveting process, which helps to simplify the assembly steps and reduce production costs.

[0050] As a preferred embodiment of the present application, Figure 3As shown, the upper shell 61 and / or the bottom cover 62 are provided with a vent hole 611 communicating with the mounting cavity 63 , and the outer side of the vent hole 611 is covered with a waterproof breathable membrane 7 .

[0051] By providing a waterproof and breathable membrane 7 on the outer side of the air hole 611, the installation cavity 63 can be ventilated with the outside world while preventing slurry and the like from entering the installation cavity 63, thereby effectively avoiding the situation where the components in the installation cavity 63 generate high heat when rotating at high speed, resulting in high internal air pressure and causing damage to the shaft seal 9 and loss of sealing effect. It can effectively balance the pressure between the installation cavity 63 and the outside world, help to extend the service life of the shaft seal 9, and ensure the sealing effect of the installation cavity 63.

[0052] As a preferred embodiment of the present application, a seal is further sandwiched between the upper shell 61 and the bottom cover 62 .

[0053] By clamping a seal between the upper shell 61 and the bottom cover 62, the sealing of the connection between the upper shell 61 and the bottom cover 62 is further improved. At the same time, with the help of the compressibility of the seal, the production errors and assembly errors of the upper shell 61 and the bottom cover 62 can be offset, making the connection between the two tighter.

[0054] As a preferred embodiment of the present application, Figure 2 As shown, the upper shell 61 is provided with an escape opening for the knife shaft 411 to pass through, and a shaft seal 9 that cooperates with the knife shaft 411 is provided at the escape opening.

[0055] By providing a shaft seal 9 that cooperates with the knife shaft 411 at the avoidance port, the avoidance port is sealed to prevent slurry and the like from entering the shell 6 through the gap between the avoidance port and the knife shaft 411 during food processing, thereby preventing the friction resistance of components such as the upper bearing 8 from increasing, and generating odor or even mold in the installation cavity 63, thereby ensuring the cleanliness of the installation cavity 63.

[0056] The technical solutions protected by this utility model are not limited to the above-described embodiments. It should be noted that the combination of the technical solutions of any one embodiment with the technical solutions of one or more other embodiments falls within the scope of protection of this utility model. Although the above description of this utility model has been provided in detail using general instructions and specific embodiments, it is obvious to those skilled in the art that modifications or improvements can be made based on this utility model. Therefore, 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 food processor with good sealing effect, comprising a cup body with a built-in stirring component and a motor disposed below the cup body and driving the stirring component to rotate, characterized in that: The stirring assembly includes a stirring blade, a driven magnetic disk assembly and a shell. The shell includes an upper shell and a bottom cover. The upper shell and the bottom cover are combined to form a closed installation cavity. The driven magnetic disk assembly is arranged in the installation cavity. The driven magnetic disk assembly is provided with a blade shaft extending out of the shell and connected to the stirring blade.

2. A food processing machine with good sealing effect according to claim 1, characterized in that: The installation cavity includes a first cavity for accommodating the driven disk assembly and a second cavity arranged outside the first cavity.

3. A food processing machine with good sealing effect according to claim 2, characterized in that: The bottom cover is provided with an upwardly protruding step portion, the inner circle of the step portion cooperates with the upper shell to form the first cavity, and the outer circle of the step portion cooperates with the upper shell to form the second cavity.

4. A food processing machine with good sealing effect according to claim 2, characterized in that: The stirring assembly further includes an isolation ring, the top end of which abuts against the upper shell, and the bottom end of which is isolated between the second cavity and the driven disk and abuts against the bottom cover, so as to separate the mounting cavity into the first cavity and the second cavity.

5. A food processing machine with good sealing effect according to claim 1, characterized in that: A welding portion for welding is provided between the bottom cover and the upper shell.

6. A food processing machine with good sealing effect according to claim 5, characterized in that: The upper shell is provided with a ring rib extending downward, the bottom cover is arranged in the ring rib, and the bottom end of the bottom cover is higher than the bottom end of the ring rib to form the welding portion therebetween.

7. A food processing machine with good sealing effect according to claim 1, characterized in that: The upper shell is provided with a ring rib extending downward, the bottom cover is arranged in the ring rib, the ring rib is provided with a flange extending inward and abutting against the bottom of the bottom cover, and the bottom cover is clamped between the flange and the upper shell.

8. A food processing machine with good sealing effect according to claim 1, characterized in that: The upper shell and / or the bottom cover are provided with a ventilation hole communicating with the installation cavity, and an outer cover of the ventilation hole is provided with a waterproof breathable membrane.

9. A food processing machine with good sealing effect according to claim 1, characterized in that: A sealing member is also sandwiched between the upper shell and the bottom cover.

10. A food processor with good sealing effect according to claim 1, characterized in that: The upper shell is provided with an escape opening for the knife shaft to pass through, and a shaft seal cooperating with the knife shaft is provided at the escape opening.

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