Food processor with low working noise

Abstract

The utility model discloses a food processor with low working noise, which relates to the field of life electric appliances, and comprises a main machine, a cutter head and a guide cylinder arranged below the main machine, the top of the guide cylinder is provided with a step part with an upward step surface and a connecting part extending upwards from the step surface to be matched with the main machine, and the cutter head is propped against the upper part of the step surface. The periphery of the cutter head is provided with a first side part and a second side part, and the first side part is closer to the central axis of the cutter head than the second side part, so that an avoiding space is formed between the outer side wall of the first side part and the inner side wall of the connecting part, and when the cutter head rotates, only the second side part can be in contact friction with the inner wall of the connecting part; and the first side part is separated from the inner wall of the connecting part by virtue of the avoiding space, so that the contact area between the periphery of the whole cutter head and the inner wall of the connecting part is reduced, the friction force between the cutter head and the connecting part is reduced, the energy loss is reduced, the resource utilization efficiency is improved, the noise generated by friction between the cutter head and the connecting part can be reduced, and the noise reduction effect is realized.

Description

Technical Field

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

[0002] Existing food processing machines usually include a main unit with a built-in motor, a cutter disc connected to the motor, and a guide cylinder arranged below the main unit. In order to achieve axial limitation of the cutter disc, a step portion with a step surface facing upward is usually provided on the top of the guide cylinder, and the cutter disc abuts against the top of the step surface. At the same time, the guide cylinder also extends upward from the step surface to form a connection portion that cooperates with the main unit. The outer periphery of the cutter disc abuts against the inner side wall of the connection portion to achieve radial limitation. However, when this type of food processing machine is in use, the outer periphery of the cutter disc will have a large friction with the step surface, which will cause a large friction noise between the cutter disc and the step surface. In order to reduce the noise generation, as described in Chinese utility model CN202 220682867.X discloses a cutting assembly for a vegetable cutter and a handheld electric vegetable cutter, wherein a convex rib in contact with the contact surface of a limit step is arranged on the outer slip ring of the blade disc, thereby reducing the contact surface between the outer slip ring and the limit step and the sliding friction between the two, thereby making the rotation of the blade disc more stable and efficient and reducing the rotation noise of the blade disc. However, the outer wall of the outer slip ring is a circular ring and cooperates with the inner wall of the connecting part inside and outside. During operation, the rotation of the blade disc causes the side wall of the outer slip ring to continuously rub against the inner wall of the connecting part, resulting in a large friction noise. In addition, a large kinetic energy will be lost due to friction, resulting in a waste of electric energy, which seriously affects the consumer experience. Utility Model Content

[0003] The utility model aims to provide a food processor with low working noise, so as to solve the problem that the friction between the side wall of the cutter disc and the inner wall of the connecting part in the existing food processor is serious, resulting in large friction noise during the working process.

[0004] To achieve the above-mentioned purpose, the utility model provides a food processing machine with low working noise, including a main machine with a built-in motor, a knife disc connected to the motor, and a guide cylinder arranged below the main machine, the top of the guide cylinder has a step portion with a step surface facing upward and a connecting portion extending upward from the step surface to cooperate with the main machine, the knife disc abuts against the top of the step surface, the outer periphery of the knife disc has a first side portion and a second side portion, the first side portion is closer to the central axis of the knife disc than the second side portion, so as to form an avoidance space between the outer side wall of the first side portion and the inner side wall of the connecting portion.

[0005] The present application forms an avoidance space between the outer wall of the first side portion and the inner wall of the connecting portion by providing the outer periphery of the cutter disc with a first side portion and a second side portion, and the first side portion is closer to the central axis of the cutter disc than the second side portion, so that after the motor is connected to the cutter disc for transmission, when the motor drives the cutter disc to rotate, only the second side portion can contact and rub against the inner wall of the connecting portion, while the first side portion is separated from the inner wall of the connecting portion by means of the avoidance space, thereby reducing the contact area between the entire outer periphery of the cutter disc and the inner wall of the connecting portion. On the one hand, it can reduce the friction between the cutter disc and the connecting portion, thereby enabling the motor to better drive the cutter disc to rotate, reduce energy loss, and improve resource utilization efficiency. At the same time, it can avoid severe wear caused by the large contact area between the two, which helps to extend the service life of the cutter disc and the guide cylinder. On the other hand, as the contact area between the outer periphery of the cutter disc and the inner wall of the connecting portion decreases, the noise generated by the friction between the two can be reduced, achieving a noise reduction effect, which helps to improve the user experience.

[0006] In a preferred implementation of a food processor with low operating noise, the first side portion includes a recessed portion formed by the inward depression of the side wall of the blade disc, and an escape space is formed between the outer side wall of the recessed portion and the inner side wall of the connecting portion.

[0007] By configuring the first side portion to be a recessed portion formed by the inward depression of the side wall of the cutter disc, and forming an avoidance space between the outer wall of the recessed portion and the inner wall of the connecting portion, the forming of the first side portion is simplified, which helps to reduce the modification cost of the original cutter disc and improve production efficiency. At the same time, it can save the amount of cutter disc demoulding, thereby reducing the production cost of the entire cutter disc.

[0008] In a preferred implementation of a food processor with low operating noise, a side surface of the first side portion is provided with an undulating wave surface.

[0009] By providing an undulating and extending wave surface on the side of the first side portion, the user can take and put the blade disc by holding the wave surface. The existence of the wave surface makes the outer periphery of the blade disc fit the user's fingers more closely, making the user feel better and more convenient to take and put the blade disc, which helps to improve the user experience.

[0010] In a preferred implementation of a food processor with low operating noise, the second side portion is further provided with a protrusion extending outward, and an outer side wall of the protrusion is gap-matched with an inner side wall of the connecting portion.

[0011] By providing a protrusion extending outward on the second side portion, and the outer wall of the protrusion and the inner wall of the connecting portion are in a clearance fit, specifically, when the cutter disc is in a non-working state and stationary, the outer wall of the protrusion and the inner wall of the connecting portion are in a clearance fit state, and when the cutter disc rotates under the drive of the motor, the protrusion will achieve line contact with the inner wall of the connecting portion to ensure radial limitation of the cutter disc, and can enable the second side portion to achieve line contact with the inner wall of the connecting portion through the protrusion from the original contact with the inner wall surface of the connecting portion, thereby further reducing the contact area between the entire cutter disc and the inner wall of the connecting portion, thereby further reducing the kinetic energy loss and wear caused by friction between the two, and at the same time further reducing the noise generated by the friction between the two, further improving the noise reduction effect.

[0012] In a preferred implementation of a food processor with low operating noise, the outer side wall of the projection is further provided with a wavy surface extending in an undulating manner.

[0013] By providing the raised outer wall with an undulating wave surface, the cutter disc can achieve linear contact with the inner wall of the connecting part through the wave surface. While reducing the friction between the cutter disc and the inner wall of the connecting part, the wave surface can also improve the structural strength of the cutter disc, thereby preventing the cutter disc from being deformed or even damaged when subjected to a large force, which helps to further extend the service life of the cutter disc.

[0014] In a preferred implementation of a food processor with low working noise, a rotary groove is provided on the outer side wall of the main unit, a rotary buckle matching the rotary groove is provided on the inner side wall of the connecting part, and the circumferential width of the avoidance space is not less than the circumferential width of the rotary buckle.

[0015] By providing a rotation groove on the outer wall of the main machine and a turn button that cooperates with the rotation groove on the inner wall of the connection part, when the user installs the main machine, the main machine can be installed by screwing the turn button and the rotation groove together, ensuring the stability of the connection and cooperation between the main machine and the guide cylinder. At the same time, the main machine and the guide cylinder can be assembled by the cooperation of the turn button and the rotation groove, making the assembly process simpler and more convenient, which helps to improve the assembly efficiency of the main machine. In addition, the circumferential width of the avoidance space is not less than the circumferential width of the turn button, so that when the cutter disc is installed into the guide cylinder, the cutter disc can use the avoidance space to avoid the turn button downward and move downward to be assembled in place, ensuring the smooth installation of the cutter disc, avoiding the situation where the avoidance space width is less than the turn button width, resulting in the cutter disc being blocked by the turn button during assembly and unable to be installed downward, and at the same time eliminating the need to provide an avoidance part on the cutter disc to avoid the turn button to achieve the structure of the cutter disc installation, which helps to simplify the structure of the cutter disc and reduce production costs.

[0016] In a preferred implementation of a food processor with low working noise, a plurality of first side portions and a plurality of second side portions are provided and are spaced apart along the circumference of the blade disc.

[0017] By providing a plurality of first side portions and second side portions, a plurality of avoidance spaces are formed between the cutter disc and the inner side wall of the connection portion in the circumferential direction, thereby further reducing the contact area between the cutter disc and the inner side wall of the connection portion, thereby further reducing the kinetic energy loss and wear caused by friction between the two, and at the same time further reducing the noise generated by the friction between the two, further improving the noise reduction effect. At the same time, the first side portion and the second side portion are arranged at intervals along the circumference of the cutter disc, so that the second side portion is in uniform contact with the inner side wall of the connection portion in the circumferential direction, thereby ensuring that the second side wall provides an effective radial force to the cutter disc when in contact with the inner side wall of the connection portion, avoiding the situation where the first side portions are arranged adjacently, resulting in a large circumferential width of the avoidance space, causing uneven radial force on the cutter disc, and ultimately causing the cutter disc to be unable to rotate normally.

[0018] In a preferred implementation of a food processor with low operating noise, the outer periphery of the cutter disc is further covered with an outer sliding ring, and the first side portion and the second side portion are formed on the outer sliding ring.

[0019] By covering the outer periphery of the cutter disc with an outer slip ring, and the first side portion and the second side portion being formed on the outer slip ring, the cutter disc can be protected in the circumferential direction through the outer slip ring. After the first side portion rubs against the inner wall of the connecting portion for a long time, if the first side portion is severely worn, the user can ensure the function of the first side portion by replacing the outer slip ring, avoiding the need to replace the entire cutter disc, which helps to reduce the maintenance cost of the cutter disc.

[0020] In a preferred implementation of a food processor with low operating noise, the guide cylinder also includes a guide portion arranged below the step portion, the guide portion includes an inclined section extending obliquely inward from the step portion and a vertical section connected to the end of the inclined section and extending vertically downward.

[0021] By making the guide cylinder further include a guide portion disposed below the step portion, and the guide portion includes an inclined section extending obliquely inward from the step portion and a vertical section connected to the end of the inclined section and extending vertically downward, the food cut by the knife disc can be quickly moved downward through the inclined section, ensuring smooth feeding, avoiding the accumulation of the cut food in the guide portion, and improving the user experience. At the same time, the vertical section can ensure that the bottom outlet meets the safety requirements while ensuring that the food falls quickly.

[0022] In a preferred implementation of a food processor with low operating noise, a circular arc transition section is provided between the vertical section and the inclined section.

[0023] By providing an arc transition section between the vertical section and the inclined section, the food can move downward more smoothly with the guidance of the arc transition section when passing between the inclined section and the vertical section, effectively avoiding the food from getting stuck when passing through this area and causing the food to accumulate in the guide part. 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 on the present invention. In the drawings:

[0025] Figure 1 A cross-sectional view of a food processor in one embodiment of the utility model;

[0026] Figure 2 An exploded view of a food processing machine in one embodiment of the utility model;

[0027] Figure 3 This is a schematic structural diagram of a guide cylinder and a cutter disc in one embodiment of the utility model;

[0028] Figure 4 It is a schematic structural diagram of a cutter disc in one embodiment of the utility model.

[0029] List of parts and reference numerals:

[0030] 1-main machine, 11-rotary groove; 2-motor; 3-cutter disc, 31-first side portion, 32-second side portion; 4-guide cylinder, 41-connecting portion, 411-spindle, 42-guide portion, 421-inclined section, 422-arc transition section, 423-vertical section; 5-avoidance space; 6-external slip ring. DETAILED DESCRIPTION

[0031] 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.

[0032] It should be noted that many specific details are elaborated 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 protection scope of the present invention is not limited to the specific implementation methods disclosed below.

[0033] like Figures 1 to 4As shown, the utility model provides a food processing machine with low working noise, including a main machine 1 with a built-in motor 2, a knife disc 3 transmission-connected to the motor 2, and a guide cylinder 4 arranged below the main machine 1, a feeding port for feeding materials is provided on one side of the main machine 1, the main machine 1 is connected above the guide cylinder 4, the guide cylinder 4 and the main machine 1 are connected by a snap-fitting and screwing manner, and a pushing rod is provided in the feeding port. When in use, the pushing rod pushes the material downward so that the material can fall more quickly and be sliced ​​or shredded by the knife disc 3. The top of the guide cylinder 4 has a step portion with a step surface facing upward and a connecting portion 41 extending upward from the step surface to cooperate with the main machine 1. Specifically, as shown in the figure, the connecting portion 41 is an annular rib extending upward, the knife disc 3 abuts above the step surface, and the outer periphery of the knife disc 3 has a first side portion 31 and a second side portion 32. The first side portion 31 is closer to the central axis of the knife disc 3 than the second side portion 32, so as to form an avoidance space 5 between the outer side wall of the first side portion 31 and the inner side wall of the connecting portion 41.

[0034] The present application provides a first side portion 31 and a second side portion 32 on the periphery of the cutter disc 3, and the first side portion 31 is closer to the central axis of the cutter disc 3 than the second side portion 32, so as to form an escape space 5 between the outer wall of the first side portion 31 and the inner wall of the connecting portion 41, so that after the motor 2 is connected to the cutter disc 3, when the motor 2 drives the cutter disc 3 to rotate, only the second side portion 32 can contact and rub with the inner wall of the connecting portion 41, and the first side portion 31 is separated from the inner wall of the connecting portion 41 by means of the escape space 5, thereby reducing the outer periphery of the entire cutter disc 3. The contact area with the inner wall of the connecting part 41 can, on the one hand, reduce the friction between the cutter disc 3 and the connecting part 41, so that the motor 2 can better drive the cutter disc 3 to rotate, reduce energy loss, and improve resource utilization efficiency. At the same time, it can avoid severe wear caused by the large contact area between the two, which helps to extend the service life of the cutter disc 3 and the guide cylinder 4; on the other hand, as the contact area between the outer periphery of the cutter disc 3 and the inner wall of the connecting part 41 decreases, the noise generated by the friction between the two can be reduced, achieving the effect of noise reduction, which helps to improve the user experience.

[0035] It should be noted that the present application does not specifically limit the forming of the first side portion 31. As a preferred embodiment of the present application, Figure 3 , Figure 4 As shown, the first side portion 31 includes a recessed portion formed by the side wall of the cutter disc 3 being recessed inwardly, and an escape space 5 is formed between the outer side wall of the recessed portion and the inner side wall of the connecting portion 41 .

[0036] By setting the first side portion 31 as a concave portion formed by the side wall of the cutter disc 3 being recessed inwardly, and forming an escape space 5 between the outer wall of the concave portion and the inner wall of the connecting portion 41, the molding of the first side portion 31 is simplified, which helps to reduce the modification cost of the original cutter disc 3, improve production efficiency, and save the amount of the cutter disc 3 to be demolded, thereby reducing the production cost of the entire cutter disc 3. Of course, the first side portion 31 can also be a convex portion protruding outwardly provided on the cutter disc 3, and the first side portion 31 is formed between the two convex portions, which will not be described in detail here.

[0037] As a preferred embodiment of the present application, the side surface of the first side portion 31 is undulated to have a wavy surface.

[0038] By providing a wavy surface on the side surface of the first side portion 31, the user can take and put the blade disc 3 by holding the wavy surface. The existence of the wavy surface makes the outer periphery of the blade disc 3 fit the user's fingers more closely, making the user feel better and more convenient to take and put the blade disc 3, which helps to improve the user experience.

[0039] As a preferred embodiment of the present application, the second side portion 32 is further provided with a protrusion extending outward, and the outer side wall of the protrusion is gap-matched with the inner side wall of the connecting portion 41 .

[0040] By providing a protrusion extending outward on the second side portion 32, and the outer wall of the protrusion and the inner wall of the connecting portion 41 are clearance-matched, preferably, the gap is smaller than the radial gap of the avoidance space. Specifically, when the cutter disc 3 is in a non-working state and is stationary, the outer wall of the protrusion and the inner wall of the connecting portion 41 are in a clearance-matched state. When the cutter disc 3 rotates driven by the motor, the protrusion will achieve line contact with the inner wall of the connecting portion 41 to ensure radial limitation of the cutter disc 3, and can enable the second side portion 32 to achieve line contact with the inner wall of the connecting portion 41 through the protrusion from the original contact with the inner wall surface of the connecting portion 41, thereby further reducing the contact area between the entire cutter disc 3 and the inner wall of the connecting portion 41, thereby further reducing the kinetic energy loss and wear caused by friction between the two, and at the same time further reducing the noise generated by the friction between the two, further improving the noise reduction effect.

[0041] Furthermore, the outer side wall of the protrusion is also provided with an undulating and extending wave surface.

[0042] By providing the raised outer wall with an undulating wave surface, the cutter disc 3 can achieve linear contact with the inner wall of the connecting portion 41 through the wave surface. While reducing the friction between the cutter disc 3 and the inner wall of the connecting portion 41, the structural strength of the cutter disc 3 can be improved through the wave surface, thereby preventing the cutter disc 3 from being deformed or even damaged when subjected to a large force, which helps to further extend the service life of the cutter disc 3.

[0043] It should be noted that the present application does not specifically limit the matching mode between the main machine 1 and the guide cylinder 4. As a preferred embodiment of the present application, Figure 2 As shown, the outer wall of the main body 1 is provided with a rotation groove 11, the inner wall of the connecting part 41 is provided with a turn button 411 matched with the rotation groove 11, and the circumferential width of the avoidance space 5 is not less than the circumferential width of the turn button 411.

[0044] By providing a rotation groove 11 on the outer wall of the main unit 1 and providing a rotary buckle 411 cooperating with the rotary groove 11 on the inner wall of the connecting portion 41, when the user installs the main unit 1, the main unit 1 can be installed by screwing the rotary buckle 411 with the rotary groove 11, thereby ensuring the stability of the connection and cooperation between the main unit 1 and the guide cylinder 4. At the same time, the main unit 1 and the guide cylinder 4 can be assembled by cooperating with the rotary buckle 411 and the rotary groove 11, which makes the assembly process simpler and more convenient, thereby helping to improve the assembly efficiency of the main unit 1. And the circumferential width of the avoidance space 5 is not less than the circumferential width of the knob 411, so that when the cutter disc 3 is installed in the guide cylinder 4, the cutter disc 3 can use the avoidance space 5 to avoid the knob 411 downward and move downward to be assembled in place, ensuring the smooth installation of the cutter disc 3, avoiding the situation where the width of the avoidance space 5 is less than the width of the knob 411, causing the cutter disc 3 to be blocked by the knob 411 during assembly and unable to be installed downward, and at the same time eliminating the need to set a separate avoidance portion on the cutter disc 3 to avoid the knob 411 to achieve the structure of the cutter disc 3 installation, which helps to simplify the structure of the cutter disc 3 and reduce production costs. Of course, the knob 411 can also be set on the main machine 1, and the rotary groove 11 is set on the connecting part 41, and the knob 411 can be set on the outer wall of the connecting part 41, and the main machine 1 is sleeved on the outer side of the connecting part 41.

[0045] As a preferred embodiment of the present application, Figure 3 , Figure 4 As shown, there are multiple first side portions 31 and second side portions 32 , which are arranged at intervals along the circumference of the cutter disc 3 .

[0046] By providing a plurality of first side portions 31 and second side portions 32, a plurality of avoidance spaces 5 are formed between the cutter disc 3 and the inner wall of the connecting portion 41 in the circumferential direction, thereby further reducing the contact area between the cutter disc 3 and the inner wall of the connecting portion 41, thereby further reducing the kinetic energy loss and wear caused by friction between the two, and at the same time further reducing the noise generated by the friction between the two, further improving the noise reduction effect. At the same time, the first side portion 31 and the second side portion 32 are arranged at intervals along the circumference of the cutter disc 3, so that the second side portion 32 is in uniform contact with the inner wall of the connecting portion 41 in the circumferential direction, thereby ensuring that the second side wall provides effective radial force to the cutter disc 3 when in contact with the inner wall of the connecting portion 41, avoiding the situation where the first side portions 31 are arranged adjacently, resulting in a larger circumferential width of the avoidance space 5, causing uneven radial force on the cutter disc 3, and ultimately causing the cutter disc 3 to be unable to rotate normally.

[0047] It should be noted that the present application does not specifically limit the molding method of the first side portion 31 and the second side portion 32. As a preferred embodiment of the present application, Figure 4 As shown, the outer periphery of the cutter disc 3 is also covered with an outer sliding ring 6 , and the first side portion 31 and the second side portion 32 are formed on the outer sliding ring 6 .

[0048] By covering the outer periphery of the cutter disc 3 with an outer slip ring 6, and the first side portion 31 and the second side portion 32 are formed on the outer slip ring 6, the cutter disc 3 can be protected in the circumferential direction of the cutter disc 3 by the outer slip ring 6. After the first side portion 31 rubs against the inner wall of the connecting portion 41 for a long time, if the first side portion 31 is greatly worn, the user can replace the outer slip ring 6 to ensure the function of the first side portion 31, avoiding the need to replace the entire cutter disc 3, which helps to reduce the maintenance cost of the cutter disc 3. Preferably, the outer slip ring 6 is made of plastic material, which helps to further reduce the friction between the first side portion 31 and the inner wall of the connecting portion 41.

[0049] As a preference of the present application, as shown in the figure, the guide cylinder 4 also includes a guide portion 42 arranged below the step portion, and the guide portion 42 includes an inclined section 421 extending obliquely inward from the step portion and a vertical section 423 connected to the end of the inclined section 421 and extending vertically downward.

[0050] By making the guide cylinder 4 further include a guide portion 42 disposed below the step portion, and the guide portion 42 includes an inclined section 421 extending obliquely inward from the step portion and a vertical section 423 connected to the end of the inclined section 421 and extending vertically downward, the food cut by the knife disc 3 can be quickly moved downward through the inclined section 421, ensuring the smoothness of the material discharge, avoiding the situation where the cut food is piled up in the guide portion 42, and improving the user experience. At the same time, the vertical section 423 can ensure that the bottom outlet meets the safety requirements while ensuring the rapid drop of the food.

[0051] Furthermore, as shown in the figure, an arc transition section 422 is provided between the vertical section 423 and the inclined section 421 .

[0052] By providing an arc transition section 422 between the vertical section 423 and the inclined section 421, the food can move downward more smoothly with the help of the arc transition section 422 when passing between the inclined section 421 and the vertical section 423, effectively avoiding the food from getting stuck when passing through this area and causing the food to accumulate in the guide portion 42.

[0053] It should be noted that the transmission cooperation with the motor 2 in the present application is not limited to the above-mentioned guide cylinder 4, which can also be replaced by a condiment bowl, a minced meat bowl or a supplementary food bowl, etc., and different crushing devices are provided in different bowls to be connected to the motor 2 transmission.

[0054] The technical solution protected by the present utility model is not limited to the above-mentioned embodiments. It should be pointed out that the combination of the technical solution of any embodiment with the technical solution of one or more other embodiments is within the protection scope of the present utility model. Although the present utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to it based on the present utility model. Therefore, these modifications or improvements made without departing from the spirit of the present utility model are within the scope of protection claimed by the present utility model.

Claims

1. A food processing machine with low working noise, comprising a main machine with a built-in motor, a cutter disc drivingly connected to the motor, and a guide cylinder arranged below the main machine, characterized in that: The top of the guide cylinder has a step portion with the step surface facing upward and a connecting portion extending upward from the step surface to cooperate with the main machine, the cutter disc abuts against the step surface, and the outer periphery of the cutter disc has a first side portion and a second side portion, the first side portion is closer to the central axis of the cutter disc relative to the second side portion, so as to form an escape space between the outer side wall of the first side portion and the inner side wall of the connecting portion.

2. A food processor with low working noise according to claim 1, characterized in that: The first side portion includes a recessed portion formed by the side wall of the cutter disc being recessed inwardly, and the escape space is formed between the outer side wall of the recessed portion and the inner side wall of the connecting portion.

3. A food processor with low working noise according to claim 1, characterized in that: The side surface of the first side portion is provided with an undulating wave surface.

4. A food processor with low working noise according to claim 1, characterized in that: The second side portion is further provided with a protrusion extending outward, and the outer side wall of the protrusion is loosely matched with the inner side wall of the connecting portion.

5. A food processor with low working noise according to claim 4, characterized in that: The outer side wall of the protrusion is also provided with an undulating and extending wave surface.

6. A food processor with low working noise according to claim 1, characterized in that: The outer side wall of the main unit is provided with a rotation groove, the inner side wall of the connecting portion is provided with a rotation buckle matched with the rotation groove, and the circumferential width of the avoidance space is not less than the circumferential width of the rotation buckle.

7. A food processor with low working noise according to claim 1, characterized in that: A plurality of the first side portions and the second side portions are provided and are spaced apart along the circumference of the cutter disc.

8. A food processor with low working noise according to claim 1, characterized in that: The outer periphery of the cutter disc is also covered with an outer sliding ring, and the first side portion and the second side portion are formed on the outer sliding ring.

9. A food processor with low working noise according to claim 1, characterized in that: The guide cylinder further comprises a guide portion arranged below the step portion, wherein the guide portion comprises an inclined section extending obliquely inwardly from the step portion and a vertical section connected to the end of the inclined section and extending vertically downward.

10. A food processor with low working noise according to claim 9, characterized in that: An arc transition section is also provided between the vertical section and the inclined section.

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