Food processor with good noise reduction effect

Abstract

The utility model discloses a food processor with a good noise reduction effect, which relates to the field of life electric appliances and comprises a cup body and a cup cover component, the cup cover component comprises a cup cover and a feeding cover, the feeding cover comprises an upper cover and a lower cover, the lower cover is provided with an outer cylinder, the upper cover is provided with an inner cylinder, and a noise reduction cavity is formed in the inner cylinder. The upper cover and the lower cover are matched to form an exhaust hole with a lateral opening, and an exhaust gap communicated with the noise reduction cavity and the exhaust hole is formed between the inner cylinder and the inner wall of the outer cylinder, so that gas moves upwards through the exhaust gap, is transversely bent and then is exhausted outwards through the exhaust hole, and primary noise reduction of noise in the noise reduction cavity is achieved; and then the noise after noise reduction moves upwards through the exhaust gap, is transversely bent after colliding with the top wall of the upper cover to realize secondary noise reduction, and is discharged outwards through the exhaust hole, so that the noise and gas are effectively reduced after being bent in different directions twice, and the outward transmission of the noise is reduced.

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 noise reduction effect. Background Art

[0002] Existing food processors usually include a cup body with a built-in stirring device and a cup cover assembly that is covered on the cup body. When using the food processor, the user removes the cup cover assembly from the cup body, and then places the ingredients into the cup body. The stirring device is driven by the motor to rotate at high speed to process the ingredients. However, when using the above machine, the user needs to separate the cup cover from the cup body to add ingredients, which is inconvenient to use. For this reason, some manufacturers will set a feeding port on the cup cover and cover the feeding port with a feeding cover. When using, especially when adding ingredients in the middle, the user can remove the feeding cover and add materials directly into the cup body, which is more convenient to use.

[0003] Although the above structure is convenient for adding materials, the noise during the operation of the machine is relatively large and will be discharged outward through the exhaust holes, etc. In order to solve the above problem, for example, Chinese utility model patent CN209733695U discloses a cup cover component, a cup body component and a food processor, wherein the cup cover component includes at least two circles of sound insulation walls fixedly arranged on the cup cover assembly and / or the exhaust cover, at least two circles of sound insulation walls surround the exhaust holes, and a noise reduction channel is formed between two adjacent circles of sound insulation walls, each sound insulation wall is provided with at least one vent connected to the noise reduction channel, and the cup cover assembly and / or the exhaust cover are provided with an air outlet connected to the noise reduction channel. Through the above arrangement, noise is reduced by changing the flow direction multiple times when the noise is discharged. Although the above structure can achieve noise reduction, due to the large number of bends in the internal channel of the cup cover, when the machine overflows due to user misoperation, the slurry will overflow into the noise reduction channel in the cup cover, and effective cleaning cannot be achieved. After a long time, the noise reduction channel will be blocked, which will cause the exhaust to be not smooth or even impossible, seriously affecting the consumer experience. Utility Model Content

[0004] The utility model aims to provide a food processing machine with good noise reduction effect, so as to solve the problem that the noise reduction structure in the feeding cover of the existing food processing machine is complicated and has many bends, which leads to easy blockage and failure of exhaust when the slurry overflows.

[0005] To achieve the above-mentioned purpose, the utility model provides a food processing machine with good noise reduction effect, including a cup body with a built-in stirring device and a cup cover assembly arranged on the top of the cup body, the cup cover assembly including a cup cover formed with a feeding port and a feeding cover covering the feeding port, the feeding cover including an upper cover and a lower cover, the lower cover is provided with an outer cylinder extending downward to the feeding port, the upper cover is provided with an inner cylinder extending downward into the outer cylinder, a noise reduction cavity is formed in the inner cylinder, the upper cover and the lower cover cooperate to form an exhaust hole with a lateral opening, the bottom wall of the outer cylinder is provided with an air inlet hole, and an exhaust gap connecting the noise reduction cavity and the exhaust hole is formed between the inner cylinder and the inner wall of the outer cylinder, so that the gas moves upward through the exhaust gap and is discharged outward through the exhaust hole after being bent laterally.

[0006] The present application provides a feeding port on the cup lid and a feeding cover at the feeding port, so that when a user uses a food processor and adds materials therein, especially when adding materials in the middle of the process, the user can remove the feeding cover to open the feeding port to add materials therein, making adding more convenient and quick, eliminating the step of removing the entire cup lid assembly from the cup body, and helping to improve the user experience. At the same time, the upper cover is provided with an inner cylinder extending downward into the outer cylinder, and an exhaust gap connecting the noise reduction chamber and the exhaust hole is formed between the inner cylinder and the inner wall of the outer cylinder, so that when the food processor is working, after the noise and gas enter the feeding cover through the air inlet hole, part of the noise and gas will move upward into the noise reduction chamber, and the noise and gas will first move upward and touch the top wall of the noise reduction chamber, and then bend and move downward, so as to achieve primary noise reduction in the noise reduction chamber, and then the noise after noise reduction will move upward through the exhaust gap, and then bend horizontally after colliding with the top wall of the upper cover to achieve secondary noise reduction, and then be discharged outward through the exhaust hole, that is: the noise and gas are vertically bent in the noise reduction chamber, and then bend horizontally and discharge outward after colliding with the inner wall of the upper cover, so that the noise and gas can achieve effective noise reduction after bending in two different directions, thereby reducing the propagation of noise outward. Compared with the existing method of setting multiple circles of sound insulation walls between the upper cover and the lower cover to form a noise reduction channel, it effectively avoids the situation where the slurry accumulates in the noise reduction channel during overflow, resulting in difficulty or even inability to discharge gas and causing interruption of food processing, thereby ensuring the smooth processing of food.

[0007] In a preferred implementation of a food processor with good noise reduction effect, the exhaust hole includes a first exhaust hole formed on the side wall of the upper cover and a second exhaust hole formed on the side wall of the lower cover and connected to the first exhaust hole, the first exhaust hole and the second exhaust hole are both located on the outside of the inner cylinder, and the first exhaust hole and the second exhaust hole are staggered in the horizontal direction.

[0008] The exhaust holes are arranged as the first exhaust hole and the second exhaust hole, and the first exhaust hole and the second exhaust hole are staggered in the horizontal direction, so that after the noise passes through the horizontal bending of the top wall of the upper cover, the noise first enters between the side wall of the upper cover and the side wall of the lower cover through the second exhaust hole, and then can be discharged outwardly through the first exhaust hole after being bent again. The noise can be further reduced in the loss of noise amount during the bending process again, thereby further reducing the propagation of noise outward and improving the noise reduction effect.

[0009] In a preferred implementation of a food processor with good noise reduction effect, the side wall of the upper cover is a first rib extending downward, the side wall of the lower cover is a second rib extending upward, the first exhaust hole and the second exhaust hole are respectively formed on the first rib and the second rib, the first rib and the second rib are both located on the outside of the inner cylinder, and the gap between the first rib and the second rib cooperates to form an exhaust channel connecting the first exhaust hole and the second exhaust hole.

[0010] By providing the first and second reinforcing bars, and the first exhaust holes and the second exhaust holes being formed on the first and second reinforcing bars respectively, when the noise propagates from the second exhaust hole to the first exhaust hole, its energy can be effectively reduced in the process of colliding with the first and second reinforcing bars, thereby further improving the noise reduction effect. At the same time, the gap between the first and second reinforcing bars cooperates to form an exhaust channel connecting the first and second exhaust holes, thereby ensuring that the gas can be discharged from the second exhaust hole to the first exhaust hole through the exhaust channel, thereby ensuring smooth gas discharge.

[0011] In a preferred implementation of a food processing machine with good noise reduction effect, the first rib is arranged outside the second rib, and the top of the first exhaust hole is not higher than half of the height of the first rib.

[0012] By setting the top of the first exhaust hole to be no higher than one-half of the height of the first rib, the gas discharged outward through the first exhaust hole can be kept away from the top surface of the upper cover, thereby reducing the transfer of gas heat to the top surface of the upper cover, and reducing the temperature rise of the top surface of the upper cover, thereby avoiding the user touching the top surface of the upper cover when taking the cup lid assembly, resulting in a bad contact experience for the user, thereby improving the user experience.

[0013] In a preferred implementation of a food processor with good noise reduction effect, an angle A between a line connecting two adjacent first exhaust holes to the center axis of the cup body and a line connecting the second exhaust hole to the center axis of the cup body satisfies: 20°≤A≤90°.

[0014] By setting the angle A between the line connecting the first exhaust hole and the center axis of the cup body and the line connecting the second exhaust hole and the center axis of the cup body to satisfy: 20°≤A≤90°, it is avoided that the first exhaust hole and the second exhaust hole are too close to each other, resulting in a short bending distance for the noise to be discharged outward and no further noise reduction, thereby ensuring the noise reduction effect between the second exhaust hole and the first exhaust hole; at the same time, it is avoided that the first exhaust hole and the second exhaust hole are too far apart, resulting in the slurry overflowing when the machine is working and the slurry cannot be discharged directly through the first exhaust hole and accumulates inside to cause gas, thereby ensuring the smoothness of exhaust.

[0015] In a preferred implementation of a food processor with good noise reduction effect, the projection of the air inlet in the horizontal direction partially falls on the outside of the projection of the inner cylinder in the horizontal direction, and partially falls on the inside of the projection of the inner cylinder in the horizontal direction.

[0016] By setting the horizontal projection of the air inlet to fall partially on the outside of the horizontal projection of the inner tube and partially on the inside of the horizontal projection of the inner tube, when the passing noise moves upward through the air inlet, part of it moves upward directly through the exhaust gap, and part of it enters the noise reduction chamber, which makes the noise that enters the noise reduction chamber and bends back to collide with the noise that is directly transmitted upward, and the energy of the two noises is greatly consumed during the collision, thereby further reducing the propagation of noise outward and further improving the noise reduction effect. At the same time, the gas can also move directly upward and be discharged outward, which helps to improve the efficiency of gas discharge outward.

[0017] In a preferred implementation of a food processor with good noise reduction effect, the side wall of the inner cylinder is further provided with a noise reduction hole connected to the exhaust gap.

[0018] By providing a noise reduction device connected to the exhaust gap on the side wall of the inner cylinder, after the noise enters the noise reduction cavity, it can not only achieve noise reduction in the noise reduction cavity, but also when it propagates outward through the noise reduction hole to the exhaust gap, the small hole noise reduction of the noise reduction hole can be used to further reduce the propagation of noise, which helps to further improve the noise reduction effect.

[0019] In a preferred implementation of a food processor with good noise reduction effect, the cup cover assembly also includes a decorative cover arranged above the upper cover.

[0020] By setting a decorative cover above the upper cover, on the one hand, when the heat of the gas discharged outward through the exhaust hole is transferred to the upper cover, it needs to be transmitted upward to the decorative cover before it can reach the top surface of the entire cup cover assembly, thereby effectively reducing the temperature rise of the top surface of the cup cover assembly, avoiding the user from touching the top surface of the upper cover when taking the cup cover assembly, resulting in a bad contact experience for the user, thereby improving the user experience; on the other hand, it improves the aesthetics of the cup cover assembly and pleasing the user experience.

[0021] In a preferred implementation of a food processor with good noise reduction effect, a sunken installation groove is provided on the top wall of the upper cover, the decorative cover is fixed in the installation groove, and the top surface of the decorative cover is flush with the top wall of the upper cover.

[0022] By providing a sunken installation groove on the top wall of the upper cover, the decorative cover is fixed in the installation groove, so that the decorative cover is fixedly connected to the upper cover through the positioning of the installation groove, ensuring the stability of the connection and cooperation between the upper cover and the decorative cover. At the same time, the top surface of the decorative cover is flush with the top wall of the upper cover, ensuring the consistency of the appearance of the entire feeding cover, avoiding the situation where there is a cleaning dead corner between the decorative cover and the upper cover, resulting in dirt accumulation between the two, and at the same time, it is convenient for users to clean it and improve the cleaning effect.

[0023] In a preferred implementation of a food processor with good noise reduction effect, an annular positioning groove is provided on the top wall of the upper cover, and an annular rib extending downward and cooperating with the annular positioning groove is provided on the decorative cover.

[0024] By providing an annular positioning groove on the top wall of the upper cover and providing the decorative cover with an annular rib extending downward and cooperating with the annular positioning groove, a more precise connection can be achieved when the decorative cover is installed with the upper cover by virtue of the alignment and cooperation between the annular positioning groove and the annular rib. At the same time, the stability of the connection between the two can be ensured by virtue of the limiting of the annular positioning groove and the annular rib. In addition, the annular rib can also improve the strength of the decorative cover and ensure its structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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:

[0026] Figure 1 This is a schematic diagram of the structure of a feeding cover in one embodiment of the utility model;

[0027] Figure 2 A partial cross-sectional view of a cup cover assembly in one embodiment of the utility model;

[0028] Figure 3 This is a cross-sectional view of a feeding cover in one embodiment of the utility model;

[0029] Figure 4 This is an exploded view of a feeding cover in one embodiment of the utility model;

[0030] Figure 5 It is a structural schematic diagram of the lower cover in one embodiment of the utility model.

[0031] List of parts and reference numerals:

[0032] 1-upper cover, 11-inner tube, 111-noise reduction chamber, 12-first exhaust hole, 13-first surrounding rib, 14-annular positioning groove; 2-lower cover, 21-outer tube, 22-air inlet, 23-second exhaust hole, 24-second surrounding rib; 3-decorative cover; 4-exhaust gap; 5-cup cover, 51-feeding port. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] like Figures 1 to 5 As shown, the utility model provides a food processing machine with good noise reduction effect, including a cup body with a built-in stirring device and a cup cover assembly arranged above the cup body, the cup cover assembly includes a cup cover 5 formed with a feeding port 51 and a feeding cover covering the feeding port 51, the feeding cover includes an upper cover 1 and a lower cover 2, the lower cover 2 is provided with an outer cylinder 21 extending downward to the feeding port 51, the upper cover 1 is provided with an inner cylinder 11 extending downward into the outer cylinder 21, a noise reduction cavity 111 is formed in the inner cylinder 11, the upper cover 1 and the lower cover 2 cooperate to form an exhaust hole with a lateral opening, the bottom wall of the outer cylinder 21 is provided with an air inlet 22, and an exhaust gap 4 connecting the noise reduction cavity 111 and the exhaust hole is formed between the inner wall of the inner cylinder 11 and the outer cylinder 21, so that the gas moves upward through the exhaust gap 4 and is discharged outward through the exhaust hole after being bent horizontally.

[0036] The present application sets a feeding port 51 on the cup lid 5 and sets a feeding cover at the feeding port 51, so that when the user uses the food processor and adds materials into it, especially when adding materials in the middle of the process, the feeding cover can be removed to open the feeding port 51 to add materials into it. Adding is more convenient and quick, and the step of removing the entire cup lid assembly from the cup body is omitted, which helps to improve the user experience. At the same time, the upper cover 1 is provided with an inner cylinder 11 extending downward into the outer cylinder 21, and an exhaust gap 4 connecting the noise reduction chamber 111 and the exhaust hole is formed between the inner cylinder 11 and the inner wall of the outer cylinder 21, so that when the food processor is working, after the noise and gas enter the feeding cover through the air inlet hole 22, part of the noise and gas will move upward into the noise reduction chamber 111, and the noise and gas will first move upward and touch the top wall of the noise reduction chamber 111, and then bend and move downward, so as to achieve primary noise reduction in the noise reduction chamber 111, and then the noise after noise reduction will move upward through the exhaust gap 4, and then bend horizontally after colliding with the top wall of the upper cover 1 to achieve secondary noise reduction, and then be discharged outwardly through the exhaust hole, that is: the noise and gas are vertically bent in the noise reduction chamber 111, and then bend horizontally after colliding with the inner wall of the upper cover 1 and be discharged outwardly, so that the noise and gas are effectively reduced after being bent in two different directions, thereby reducing the propagation of noise outward. Compared with the existing method of setting multiple circles of sound insulation walls between the upper cover 1 and the lower cover 2 to form a noise reduction channel, it effectively avoids the situation where the slurry accumulates in the noise reduction channel during overflow, resulting in difficulty or even inability to discharge gas and causing interruption of food processing, thereby ensuring the smooth processing of food.

[0037] As a preferred embodiment of the present application, Figure 2 , Figure 3 As shown, the exhaust holes include a first exhaust hole 12 formed on the side wall of the upper cover 1 and a second exhaust hole 23 formed on the side wall of the lower cover 2 and connected to the first exhaust hole 12. The first exhaust hole 12 and the second exhaust hole 23 are both located outside the inner tube 11, and the first exhaust hole 12 and the second exhaust hole 23 are staggered in the horizontal direction.

[0038] The exhaust holes are arranged as the first exhaust hole 12 and the second exhaust hole 23, and the first exhaust hole 12 and the second exhaust hole 23 are staggered in the transverse direction, so that after the noise passes through the transverse bending of the top wall of the upper cover 1, the noise first enters between the side wall of the upper cover 1 and the side wall of the lower cover 2 through the second exhaust hole 23, and then can be discharged outwardly through the first exhaust hole 12 after bending. The noise can be further reduced in the loss of noise amount during the bending process again, thereby further reducing the propagation of noise outward and improving the noise reduction effect.

[0039] Furthermore, if Figure 4As shown, the side wall of the upper cover 1 is a first rib 13 extending downward, the side wall of the lower cover 2 is a second rib 24 extending upward, the first exhaust hole 12 and the second exhaust hole 23 are respectively formed on the first rib 13 and the second rib 24, the first rib 13 and the second rib 24 are both located on the outside of the inner tube 11, and the first rib 13 and the second rib 24 are gap-matched to form an exhaust channel connecting the first exhaust hole 12 and the second exhaust hole 23.

[0040] By providing the first surrounding rib 13 and the second surrounding rib 24, and the first exhaust hole 12 and the second exhaust hole 23 are respectively formed on the first surrounding rib 13 and the second surrounding rib 24, when the noise propagates from the second exhaust hole 23 to the first exhaust hole 12, its energy can be effectively reduced in the process of colliding with the first surrounding rib 13 and the second surrounding rib 24, thereby further improving the noise reduction effect. At the same time, the first surrounding rib 13 and the second surrounding rib 24 are gap-matched to form an exhaust channel connecting the first exhaust hole 12 and the second exhaust hole 23, thereby ensuring that the gas can be discharged from the second exhaust hole 23 to the first exhaust hole 12 through the exhaust channel, thereby ensuring the smoothness of gas discharge.

[0041] It should be noted that the present application does not specifically limit the relative relationship between the first exhaust hole 12 and the first rib 13. As a preferred embodiment of the present application, Figure 4 As shown, the first rib 13 is disposed outside the second rib 24 , and the top of the first exhaust hole 12 is not higher than half of the height of the first rib 13 .

[0042] By setting the top of the first exhaust hole 12 to be no higher than half of the height of the first rib 13, the gas discharged outward through the first exhaust hole 12 can be kept away from the top surface of the upper cover 1, thereby reducing the transfer of gas heat to the top surface of the upper cover 1 and reducing the temperature rise of the top surface of the upper cover 1, thereby avoiding the situation where the user touches the top surface of the upper cover 1 when taking the cup lid assembly, resulting in a bad contact experience for the user, thereby improving the user experience.

[0043] It should be noted that the present application does not specifically limit the positional relationship between the first exhaust hole 12 and the second exhaust hole 23. As a preferred embodiment of the present application, Figure 3 As shown, the angle A between the line connecting two adjacent first exhaust holes 12 to the center axis of the cup body and the line connecting the second exhaust hole 23 to the center axis of the cup body satisfies: 20°≤A≤90°. More preferably, the angle between the line connecting two adjacent first exhaust holes 12 to the center axis of the cup body and the line connecting the second exhaust hole 23 to the center axis of the cup body is 30°.

[0044] By setting the angle A between the line connecting the first exhaust hole 12 and the center axis of the cup body and the line connecting the second exhaust hole 23 and the center axis of the cup body to satisfy: 20°≤A≤90°, it is avoided that the first exhaust hole 12 and the second exhaust hole 23 are too close to each other, resulting in a short bending distance for the noise to be discharged outward and no further noise reduction, thereby ensuring the noise reduction effect between the second exhaust hole 23 and the first exhaust hole 12; at the same time, it is avoided that the first exhaust hole 12 and the second exhaust hole 23 are too far apart, resulting in the slurry overflowing when the machine is working and the slurry cannot be discharged directly through the first exhaust hole 12 and accumulates inside to cause gas, thereby ensuring the smoothness of exhaust.

[0045] As a preferred embodiment of the present application, Figure 3 As shown, the projection of the air inlet hole 22 in the horizontal direction partially falls on the outside of the projection of the inner cylinder 11 in the horizontal direction, and partially falls on the inside of the projection of the inner cylinder 11 in the horizontal direction.

[0046] By setting the projection of the air inlet 22 in the horizontal direction to fall partially on the outside of the projection of the inner tube 11 in the horizontal direction and partially on the inside of the projection of the inner tube 11 in the horizontal direction, the passing noise moves upward through the air inlet 22, partially directly moves upward through the exhaust gap 4, and partially enters the noise reduction chamber 111, which makes the noise that enters the noise reduction chamber 111 and bends back to collide with the noise that is directly transmitted upward, and the energy of the two noises is greatly consumed during the collision, thereby further reducing the propagation of noise outward and further improving the noise reduction effect. At the same time, the gas can also move directly upward and be discharged outward, which helps to improve the efficiency of gas discharge outward.

[0047] As a preferred embodiment of the present application, the side wall of the inner cylinder 11 is further provided with a noise reduction hole connected to the exhaust gap 4.

[0048] By also providing a noise reduction device connected to the exhaust gap 4 on the side wall of the inner cylinder 11, after the noise enters the noise reduction chamber 111, it can not only achieve noise reduction in the noise reduction chamber 111, but also when the noise propagates outward through the noise reduction hole to the exhaust gap 4, the small hole noise reduction of the noise reduction hole is used to further reduce the propagation of the noise, which helps to further improve the noise reduction effect.

[0049] As a preferred embodiment of the present application, Figure 1 , Figure 2 , Figure 4 As shown, the cup cover assembly also includes a decorative cover 3 arranged above the upper cover 1.

[0050] By arranging the decorative cover 3 above the upper cover 1, on the one hand, when the heat of the gas discharged to the outside through the exhaust hole is transferred to the upper cover 1, it needs to be transmitted upward to the decorative cover 3 before reaching the top surface of the entire cup cover assembly, which effectively reduces the temperature rise of the top surface of the cup cover assembly, avoids the user touching the top surface of the upper cover 1 when taking the cup cover assembly, resulting in the user having a bad contact experience, and improves the user experience; on the other hand, it improves the aesthetics of the cup cover assembly and pleasing the user experience.

[0051] As a preferred embodiment of this embodiment, a sunken installation groove is provided on the top wall of the upper cover 1 , the decorative cover 3 is fixed in the installation groove, and the top surface of the decorative cover 3 is flush with the top wall of the upper cover 1 .

[0052] By providing a sunken installation groove on the top wall of the upper cover 1, the decorative cover 3 is fixed in the installation groove, so that the decorative cover 3 is fixedly connected to the upper cover 1 through the positioning of the installation groove, ensuring the stability of the connection and cooperation between the upper cover 1 and the decorative cover 3. At the same time, the top surface of the decorative cover 3 is flush with the top wall of the upper cover 1, ensuring the consistency of the appearance of the entire feeding cover, avoiding the situation where there is a cleaning dead corner between the decorative cover 3 and the upper cover 1, resulting in the accumulation of dirt between the two, and at the same time, it is convenient for users to clean it and improve the cleaning effect.

[0053] As a preferred embodiment of this embodiment, Figure 4 As shown, the top wall of the upper cover 1 is provided with an annular positioning groove 14 , and the decorative cover 3 is provided with an annular rib extending downward and cooperating with the annular positioning groove 14 .

[0054] By providing an annular positioning groove 14 on the top wall of the upper cover 1 and providing the decorative cover 3 with an annular rib extending downward and cooperating with the annular positioning groove 14, when the decorative cover 3 is installed with the upper cover 1, a more precise connection can be achieved by virtue of the alignment and cooperation between the annular positioning groove 14 and the annular rib. At the same time, the stability of the connection and cooperation between the two can be ensured by virtue of the limiting of the annular positioning groove 14 and the annular rib. In addition, the annular rib can also improve the strength of the decorative cover 3 and ensure its structural stability.

[0055] 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 processor with good noise reduction effect, comprising a cup body with a built-in stirring device and a cup cover assembly arranged on the top of the cup body, wherein the cup cover assembly comprises a cup cover with a feeding port and a feeding cover covering the feeding port, characterized in that: The feeding cover includes an upper cover and a lower cover, the lower cover is provided with an outer cylinder extending downward to the feeding port, the upper cover is provided with an inner cylinder extending downward into the outer cylinder, a noise reduction chamber is formed in the inner cylinder, the upper cover and the lower cover cooperate to form an exhaust hole with a side opening, the bottom wall of the outer cylinder is provided with an air inlet hole, and an exhaust gap connecting the noise reduction chamber and the exhaust hole is formed between the inner cylinder and the inner wall of the outer cylinder, so that the gas moves upward through the exhaust gap and is discharged outward through the exhaust hole after being bent horizontally.

2. A food processing machine with good noise reduction effect according to claim 1, characterized in that: The exhaust hole includes a first exhaust hole formed on the side wall of the upper cover and a second exhaust hole formed on the side wall of the lower cover and connected to the first exhaust hole. The first exhaust hole and the second exhaust hole are both located outside the inner tube, and the first exhaust hole and the second exhaust hole are staggered in the transverse direction.

3. A food processing machine with good noise reduction effect according to claim 2, characterized in that: The side wall of the upper cover is a first rib extending downward, and the side wall of the lower cover is a second rib extending upward. The first exhaust hole and the second exhaust hole are respectively formed on the first rib and the second rib. The first rib and the second rib are both located on the outside of the inner tube, and the first rib and the second rib are gap-matched to form an exhaust channel connecting the first exhaust hole and the second exhaust hole.

4. A food processing machine with good noise reduction effect according to claim 3, characterized in that: The first rib is disposed outside the second rib, and the top of the first exhaust hole is not higher than half of the height of the first rib.

5. A food processing machine with good noise reduction effect according to claim 2, characterized in that: An angle A between a line connecting two adjacent first exhaust holes to the central axis of the cup body and a line connecting the second exhaust hole to the central axis of the cup body satisfies: 20°≤A≤90°.

6. A food processing machine with good noise reduction effect according to claim 1, characterized in that: The projection of the air inlet in the horizontal direction partially falls on the outside of the projection of the inner cylinder in the horizontal direction, and partially falls on the inside of the projection of the inner cylinder in the horizontal direction.

7. A food processing machine with good noise reduction effect according to claim 1, characterized in that: The side wall of the inner cylinder is also provided with a noise reduction hole communicated with the exhaust gap.

8. A food processing machine with good noise reduction effect according to claim 1, characterized in that: The cup cover assembly also includes a decorative cover arranged above the upper cover.

9. A food processing machine with good noise reduction effect according to claim 8, characterized in that: The top wall of the upper cover is provided with a sunken installation groove, the decorative cover is fixed in the installation groove, and the top surface of the decorative cover is flush with the top wall of the upper cover.

10. A food processing machine with good noise reduction effect according to claim 8, characterized in that: The top wall of the upper cover is provided with an annular positioning groove, and the decorative cover is provided with an annular rib extending downward and cooperating with the annular positioning groove.

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