Noise reduction valve and food processor

Abstract

The invention discloses a noise reduction valve and a food processor. The noise reduction valve is arranged at an outlet of the mashing cup and comprises a valve body, a water guide column is arranged on the valve body, a containing cavity is formed in the valve body, and the water guide column is communicated between an inner cavity of the mashing cup and the containing cavity; the valve cover covers the opening of the valve body, an exhaust port is formed in the valve cover, and the exhaust port is communicated with the containing cavity. According to the noise reduction valve, noise generated in the operation process of the driving mechanism can be reflected, the noise reduction effect is achieved, and the use experience feeling of a user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking machines, and particularly relates to a silencing valve and a cooking machine. Background Art

[0002] The main functions of the existing cooking machines on the market include making soy milk, grinding dry powder, squeezing juice, making minced meat, making shaved ice, making coffee, and female users preparing beauty masks, etc. Since the cooking machine is provided with a motor for rotation to achieve the crushing function, the cooking machine will generate relatively large noise during operation, affecting the user experience. Summary of the Invention

[0003] To solve at least one of the problems existing in the above-mentioned prior art, according to one aspect of the present invention, a silencing valve is provided, which is arranged at the outlet of the crushing cup and includes:

[0004] A valve body, on which a water guiding column is provided, and a receiving cavity is arranged inside the valve body, and the water guiding column communicates between the inner cavity of the crushing cup and the receiving cavity;

[0005] A valve cover, which covers the opening of the valve body, and an exhaust port is provided on the valve cover, and the exhaust port communicates with the receiving cavity.

[0006] In some embodiments, the water guiding column is located in the receiving cavity and extends towards the inner cavity of the crushing cup.

[0007] In some embodiments, the height of the water column formed in the water guiding column is h 1 , the radius of the inner cavity of the water guiding column is r 1 , and the cross-sectional area s of the inner cavity of the water guiding column = πr 1 2 , where 0.3 < h 1 / s < 10, h 1 ≥ 1 mm, and 1 mm ≤ r 1 ≤ 5 mm.

[0008] In some embodiments, a surrounding column is provided on the valve cover, the surrounding column extends into the receiving cavity and has a gap with the bottom wall of the receiving cavity. Along the axial direction of the water guiding column, at least part of the projection of the cross-section of the inner cavity of the surrounding column on the reference plane coincides with the projection of the cross-section of the inner cavity of the water guiding column on the reference plane.

[0009] In some embodiments, the water guiding column extends into the receiving cavity, a surrounding column is provided on the valve cover, the surrounding column surrounds the periphery of part of the water guiding column, and has gaps with the outer wall of the water guiding column, the inner wall of the receiving cavity, and the bottom wall of the receiving cavity respectively.

[0010] In some embodiments, the height h of the water guiding column2 ≥3 mm.

[0011] In some embodiments, the volume of the solution inside the water guide column is V1, and the volume of the solution between the water guide column and the surrounding column is V2, where V1 ≥ V2.

[0012] In some embodiments, the valve cover and the valve body are detachably connected.

[0013] In some embodiments, a water-containing cavity is provided on the valve cover, and the water-containing cavity is communicated with the accommodating cavity.

[0014] In some embodiments, a surrounding rib is provided on the valve cover. The surrounding rib extends into the water-containing cavity, and the surrounding rib surrounds part of the surrounding column. A water-containing cavity is formed between the surrounding rib and the valve cover, and the exhaust port is located outside the surrounding rib along the radial direction of the water guide column.

[0015] In some embodiments, when the valve cover covers the opening of the accommodating cavity, an enclosing cavity is formed between the surrounding rib and the valve body, and notches communicating with the exhaust port and the water-containing cavity respectively are provided on the surrounding rib.

[0016] In some embodiments, the silencing valve further includes a sealing ring. The sealing ring is sleeved outside the valve body and is used to seal the outlet.

[0017] Another aspect of the present invention provides a food processor, including:

[0018] A crushing cup having an outlet;

[0019] A driving mechanism provided at the bottom of the crushing cup;

[0020] A crushing knife provided inside the crushing cup and electrically connected to the driving mechanism, for crushing the food inside the crushing cup under the drive of the driving mechanism;

[0021] The above-mentioned silencing valve, which is detachably provided at the opening.

[0022] In summary, the silencing valve and the food processor provided by the present invention have the following technical effects:

[0023] When the slurry in the crushing cup is agitated by the driving mechanism, the slurry moves into the water guide column located above. Since the water guide column is connected to the accommodating cavity in the valve body, the slurry can be conveyed into the accommodating cavity. When there is liquid in the water guide column and / or the accommodating cavity, the noise transmitted by the driving mechanism to the opening of the crushing cup during operation, due to the difference in acoustic characteristic impedance between air and liquid, when the sound wave is transmitted from the air in the crushing cup to the liquid on the valve body, the noise sound wave is basically completely reflected, resulting in the sound wave being unable to be transmitted to the outside, thus achieving the effect of noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. is a schematic structural diagram of a food processor according to an embodiment of the present invention;

[0025] Figure 2 FIG. is a schematic structural diagram of a sound-damping valve according to a first embodiment;

[0026] Figure 3 is Figure 2 an enlarged schematic view of part I in;

[0027] Figure 4 FIG. is a schematic structural diagram of a sound-damping valve according to a second embodiment;

[0028] Figure 5 FIG. is a three-dimensional schematic view of a sound-damping valve according to a third embodiment;

[0029] Figure 6 is Figure 5 an exploded schematic view of the sound-damping valve of;

[0030] Figure 7 is Figure 5 a cross-sectional schematic view of the sound-damping valve of;

[0031] Figure 8 is Figure 7 an enlarged schematic view of part II in;

[0032] Figure 9 is Figure 5 a schematic structural diagram of the valve cover in.

[0033] DRAWINGS: 100 - sound-damping valve, 10 - valve body, 11 - water guide column, 12 - accommodating cavity, 13 - guide rib, 14 - enclosing cavity, 20 - valve cover, 21 - exhaust port, 22 - surrounding column, 23 - water-containing cavity, 24 - surrounding rib, 25 - notch, 30 - sealing ring, 200 - food processor, 210 - crushing cup, 220 - cup cover, 230 - driving mechanism, 240 - crushing knife. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

[0035] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0037] The present invention will be further described in detail below with reference to the drawings.

[0038] Embodiment 1

[0039] Please refer to Figures 1 to 3 , which is a silencing valve 100 provided for the first embodiment of the present invention, including a valve body 10 and a valve cover 20.

[0040] Among them, a water guide column 11 is provided on the valve body 10, and a receiving cavity 12 is provided inside the valve body 10. The water guide column 11 communicates between the inner cavity of the crushing cup 210 and the receiving cavity 12; the valve cover 20 covers the opening of the receiving cavity 12, and an exhaust port 21 is provided on the valve cover 20, and the exhaust port 21 communicates with the receiving cavity 12.

[0041] When the above-mentioned silencing valve 100 is applied to the crushing cup 210, when the slurry in the crushing cup 210 is agitated by the driving mechanism, the slurry moves into the water guide column 11 located above. Since the water guide column 11 communicates with the receiving cavity 12 inside the valve body 10, the slurry can be conveyed into the receiving cavity 12. When the water guide column 11 and / or the receiving cavity 12 contain liquid, the noise transmitted by the driving mechanism 230 to the opening of the crushing cup 210 during operation, due to the acoustic characteristic impedance of air and liquid differing by 4000 times, when the sound wave is transmitted from the air in the crushing cup 210 to the liquid on the valve body 10, the noise sound wave is basically completely reflected, resulting in the sound wave being unable to be transmitted to the outside, thereby achieving the effect of noise reduction.

[0042] Among them, when the water guide column 11 is arranged on the valve body 10, the water guide column 11 can be arranged inside the accommodating cavity 12 or outside the accommodating cavity 12, and both can achieve the effect of being connected to the inner cavity of the crushing cup 210 and the accommodating cavity 12. When the water guide column 11 is arranged, the axis of the water guide column 11 can coincide with the axis of the accommodating cavity 12, or the axis of the water guide column 11 can be set to deviate from the axis of the accommodating cavity 12, and it can also achieve the effect of being connected to the inner cavity of the crushing cup 210 and the accommodating cavity 12.

[0043] When setting the valve cover 20, the valve cover 20 covers the opening of the accommodating cavity 12 and can be fixedly connected to the valve body 10 or detachably connected to the valve body 10. Thus, in the detachable connection mode, it is convenient to clean the inside of the valve body 10 after detaching the valve cover 20 later. By arranging the exhaust port 21 on the valve cover 20, the steam generated in the crushing cup 210 can be discharged through the exhaust port 21, avoiding the situation of explosion due to excessive air pressure.

[0044] Please refer to Figure 2 and Figure 3 , which is a schematic diagram of the setting mode of the water guide column 11 in the first embodiment of the present invention. The water guide column 11 extends into the inner cavity of the crushing cup 210 and is located outside the accommodating cavity 12. In this way, during the process of the driving mechanism 230 driving the slurry to stir at a high speed, the slurry can quickly enter the water guide column 11. Due to the certain speed of the slurry, it can enter the accommodating cavity 12. In this way, the slurry can be at least temporarily stored in the water guide column 11 and the accommodating cavity 12. Due to the intermittent existence of the water columns in the water guide column 11 and the accommodating cavity 12, when the sound wave is transmitted from the air in the crushing cup 210 to the liquid on the valve body 10, the noise sound wave is basically completely reflected, resulting in the sound wave being unable to be transmitted to the outside, thus achieving the noise reduction effect.

[0045] The existence mode of the liquid level in this embodiment is that when there is liquid flowing into the water guide column 11, there will be a liquid level with a certain height in the accommodating cavity 12. When there is no liquid column in the water guide column 11, the slurry in the accommodating cavity 12 will also flow into the crushing cup 210 from the water guide column 11. That is, in this way, when the slurry level in the crushing cup 210 is rotating at a high speed, the water columns in the accommodating cavity 12 and the water guide column 11 exist intermittently. When the driving mechanism stops stirring, the slurry will flow back into the crushing cup.

[0046] Specifically, please refer to Figure 3 , when the water guide column 11 is arranged outside the accommodating cavity 12, the height of the water column accommodated in the water guide column 11 is h1, the radius of the inner cavity of the water guide column 11 is r1, and the cross-sectional area s of the inner cavity of the water guide column 11 = πr 1 2 , among which, 0.3 < h 1 / s < 10, h1 > 1 mm, and 1 mm ≤ r1 ≤5 mm, so that with 1 mm ≤ r 1 ≤5 mm, the injection molding of the water guiding column 11 can be facilitated, and a liquid level of a certain height can be obtained to achieve a noise reduction effect; when r 1 < 1 mm, since the size of the water guiding column 11 is too small at this time, it is not convenient for molding; when r 1 > 5 mm, at this time, the water guiding column 11 cannot achieve the noise reduction effect due to the too large inner diameter; set h 1 ≥1 mm, so that the water guiding column 11 can have a certain extension height, ensure the height of the water column formed inside it, ensure the noise reduction effect, and avoid the situation that when the height of the water guiding column 11 is set too small, it is not convenient for the injection molding of the water guiding column 11 and the noise reduction effect cannot be achieved.

[0047] The following are some embodiments of the height h of the water column and the radius r of the inner cavity of the water guiding column 11 in the embodiments of the present invention: 1 and the radius of the inner cavity of the water guiding column 11 is r 1 of the embodiments:

[0048] <![CDATA[Height h 1 / mm]]> <![CDATA[radius r 1 / mm]]> <![CDATA[Area s / mm 2 > <![CDATA[Ratio (h 1 / s)]]> 1 1 3.14 0.318 30 1 3.14 9.554 30 3 28.26 1.062 50 3 28.26 0.548

[0049] When h 1 = 1 mm and r 1 = 1, h 1 / s ≈ 0.318; when h 1 = 30 mm and r 1 = 1, h 1 / s ≈ 9.554. Therefore, the range of the ratio of h 1 / s in this embodiment is set to 0.3 < h1 / s < 10.

[0050] Preferably, the range of h 1 in this embodiment is: 1 mm ≤ h 1 ≤ 30 mm. Since the water guiding column 11 extends into the crushing cup 210, when h 1 > 30 mm, it will occupy the space in the crushing cup 210, and due to the capillary effect of the liquid, when the extension height of the water guiding column 11 is relatively high, it is not convenient for the slurry being stirred at high speed to flow into the accommodating cavity 12, resulting in a poor noise reduction effect. For example, in a specific embodiment, some values of h 1 and r 1 are respectively: h 1 = 1 mm and r 1 = 1; h 1 = 30 mm and r 1 = 3.

[0051] Further, please refer to Figure 2 and Figure 3, In order to further achieve the effect of noise reduction, a surrounding column 22 is provided on the valve cover 20. The surrounding column 22 extends into the accommodating cavity 12 and has a gap with the bottom wall of the accommodating cavity 12. Along the axial direction of the water guiding column 11, at least part of the projection of the cross-section of the inner cavity of the surrounding column 22 on the reference plane coincides with the projection of the cross-section of the inner cavity of the water guiding column 11 on the reference plane. Thus, when the sound wave propagates from the water guiding column 11 into the accommodating cavity 12, the upward propagating sound wave enters the surrounding column 22 and is reflected by the top wall of the surrounding column 22. The sound wave will turn around 180° and move downward, opposite to the moving direction of the upward moving sound wave, and interfere with each other, thereby achieving the effect of noise elimination.

[0052] It can be understood that along the axial direction of the water guiding column 11, at least the projection of the cross-section of the inner cavity of the surrounding column 22 on the reference plane coincides with at least part of the projection of the cross-section of the inner cavity of the water guiding column 11 on the reference plane, which means that at least a part of the cross-section of the inner cavity of the surrounding column 22 can coincide with the cross-section of the inner cavity of the water guiding column 11, or the two can completely coincide; or the area of the cross-section of the inner cavity of the surrounding column 22 is larger than the area of the cross-section of the inner cavity of the water guiding column 11, or the area of the cross-section of the inner cavity of the water guiding column 11 is larger than the area of the cross-section of the inner cavity of the surrounding column 22, and all can achieve the effect of noise elimination.

[0053] Preferably, the area of the cross-section of the inner cavity of the surrounding column 22 is larger than the area of the cross-section of the inner cavity of the water guiding column 11, and the cross-sections of the two completely coincide. Thus, all the sound waves penetrating into the water guiding column 11 can propagate into the surrounding column 22 and be reflected by the surrounding column 22, achieving a better noise elimination effect.

[0054] Furthermore, when setting the surrounding column 22 in this embodiment, the central axis of the surrounding column 22 coincides with the central axis of the water guiding column 11, thereby ensuring the overall unity of the entire valve body 10.

[0055] Embodiment Two

[0056] Please refer to Figure 4 , In another embodiment of the invention, the water guiding column 11 can be set to extend into the accommodating cavity 12. Thus, after the high-speed rotating slurry enters the water guiding column 11, part of the slurry crosses the water guiding column 11 and enters the accommodating cavity 12, and is temporarily stored in the accommodating cavity 12. Thus, after the slurry is stirred at a high speed, the accommodating cavity 12 can always store at least a certain height of slurry in the accommodating cavity 12, thereby achieving a better noise elimination effect.

[0057] Among them, when the water guiding column 11 of this embodiment extends into the accommodating cavity 12, the surrounding column 22 can be provided or not. It can be understood that when the surrounding column 22 is provided, the surrounding column 22 can surround at least part of the outer periphery of the guiding column, or be located above the water guiding column 11, and both can achieve the sound absorption effect; in addition, when the surrounding column 22 surrounds at least part of the outer periphery of the water guiding column 11, there needs to be a certain gap between the inner wall of the surrounding column 22 and the outer wall of the water guiding column 11, so as to ensure that the slurry flowing into the water guiding column 11 can flow into the accommodating cavity 12 through the gap.

[0058] Embodiment Three

[0059] Please refer to Figures 5 to 9 , for the silencing valve 100 provided by the third embodiment of the present invention. When this embodiment of the silencing valve 100 is set, the water guiding column 11 extends into the accommodating cavity 12, and a surrounding column 22 is provided on the valve cover 20. The surrounding column 22 surrounds the periphery of part of the water guiding column 11, and there are gaps between the outer wall of the water guiding column 11, the inner wall of the accommodating cavity 12, and the bottom wall of the accommodating cavity 12 respectively. In this way, as the slurry in the crushing cup 210 is gradually heated and under the high-speed agitation of the crushing mechanism, the slurry gradually enters the accommodating cavity 12 through the water guiding column 11 and the gap between the water guiding column 11 and the surrounding column 22. The accommodating cavity 12 achieves the storage effect, and there is always a certain liquid level height in the accommodating cavity 12. Thus, with the continuous agitation of the driving mechanism 230, there is also temporarily stored slurry in the water guiding column 11, and together with the liquid level in the accommodating cavity 12, it can reflect sound waves and achieve a better sound absorption effect.

[0060] Among them, when setting the water guiding column 11 in this embodiment, the height h of the water guiding column 11 2 ≥3mm, so that when the slurry enters the accommodating cavity 12 through the water guiding column 11, a certain height of water column liquid level can be accommodated in the accommodating cavity 12, thereby achieving the sound absorption effect and avoiding the situation that when the height of the water guiding column 11 is set to be relatively small, the liquid levels in the accommodating cavity 12 and the water guiding column 11 are relatively low and cannot reflect sound waves, which affects the sound absorption effect.

[0061] It should be noted that the height h of the water guiding column 11 in this embodiment 2 refers to the distance between the bottom wall of the accommodating cavity 12 and the top wall of the water guiding column 11. In some embodiments, the height of the water guiding column 11 can be set to values such as 3mm, 4mm, or 5mm, which is not limited here.

[0062] Furthermore, please refer to Figure 8 , in order to enable the slurry in the accommodating cavity 12 to flow back into the crushing cup 210 as much as possible in the later stage of stirring and avoid deposition in the valve body 10, when the water guiding column 11 and the surrounding column 22 are set, the inner diameter of the water guiding column 11 is r 2 , and the inner diameter of the surrounding column 22 is r 3, thus, the volume of the liquid in the water guiding column 11 is V 1 = h 2 * πr 2 2 , the volume of the liquid between the water guiding column 11 and the surrounding column 22 is V 2 = h 2 * πr 3 2 - h 2 * πr 2 2 , V 1 ≥ V 2 , that is, the volume of the slurry in the water guiding column 11 needs to be greater than the volume of the stored slurry between the water guiding column 11 and the surrounding column 22. Thus, when the slurry in the water guiding column 11 flows back into the crushing cup 210 due to gravity, due to the siphon effect, when the water in the water guiding column 11 flows back, the water in the accommodating cavity 12 can also flow back into the crushing cup 210. After the siphon effect ends, a small amount of slurry remains in the accommodating cavity 12, avoiding the deposition of slurry in the valve body 10, so as to facilitate the subsequent cleaning of the valve body 10.

[0063] It can be understood that there may be high-temperature gas in the crushing cup 210. As the slurry is heated, the high-temperature gas gradually dissolves in the slurry in the accommodating cavity 12 and emerges in the form of bubbles, avoiding the phenomenon that the pressure in the crushing cup 210 is too high when there are water droplets in both the water guiding column 11 and the accommodating cavity 12.

[0064] Among them, when it is necessary to realize the backflow of the slurry in the accommodating cavity 12 into the crushing cup 210, the water level line h in the accommodating cavity 12 3 ≥ h 2 . For example, when h 3 = h 2 , and the temperature in the crushing cup 210 is at least 40° higher than the outside temperature, due to the air pressure difference between the crushing cup 210 and the external environment, the external atmospheric pressure presses the slurry in the accommodating cavity 12 into the crushing cup 210; when h 3 > h 2 , under the action of gravity, the slurry is pressed into the crushing cup 210, and at the same time, a siphon effect is generated, gradually pressing the slurry in the accommodating cavity 12 into the crushing cup 210.

[0065] In addition, what is the same as in the first embodiment in this embodiment is that due to the setting of the surrounding column 22, the sound wave transmitted through the water guiding column 11 in the crushing cup 210 can be reflected, so as to achieve the effect of noise reduction.

[0066] Please refer to Figure 8, in an embodiment of the present invention, after the siphon effect ends, a small amount of slurry remains in the valve body 10. To prevent bacteria from breeding due to the remaining slurry in the valve body 10, the valve cover 20 and the valve body 10 are detachably connected. In this way, after the valve cover 20 is detached from the valve body 10, the valve body 10 can be rinsed, and the valve cover 20 can be cleaned to ensure the cleanliness of the valve body 10 and avoid bacteria breeding that may affect the user's physical health. Among them, the detachable connection method between the valve cover 20 and the valve body 10 can be snap connection or plug connection, which is not limited here.

[0067] Further, after the crushing operation ends, the common usage habit of the user for the food processor 200 is: detach the valve body 10 from the crushing cup 210 and place the valve body 10 on the tabletop in an inverted state, so as to prevent the inner surface of the valve body 10 from contaminating the tabletop due to contact with the slurry. Therefore, in order to adapt to the inverted placement method of the silencer valve 100, a water receiving cavity 23 is provided on the valve cover 20, and the water receiving cavity 23 is communicated with the accommodating cavity 12. Thus, when the entire silencer valve 100 is detached from the crushing cup 210 and in an inverted state after the crushing is completed, the remaining slurry in the accommodating cavity 12 will flow into the water receiving cavity 23 and be temporarily stored by the water receiving cavity 23. After the valve body 10 and the valve cover 20 are detached, the valve cover 20 and the valve body 10 can be cleaned separately, which is convenient for the user to use and clean the entire silencer valve 100.

[0068] Among them, when the water receiving cavity 23 is provided on the valve cover 20, the projections of the water receiving cavity 23 and the exhaust port 21 on the same plane along the axial direction of the guide water column 11 are in an independent state, so as to prevent the slurry in the water receiving cavity 23 from being discharged from the exhaust port 21 to the tabletop and causing secondary pollution to the tabletop when the silencer valve 100 is placed upside down. For example, at this time, the water receiving cavity 23 and the exhaust port 21 are respectively arranged on both sides of the surrounding column 22 along the radial direction of the surrounding column 22 to avoid the situation of intersection between the two.

[0069] In some embodiments, when the water receiving cavity 23 is provided on the valve cover 20, it can be that the main body of the valve cover 20 is recessed in the direction away from the valve body 10 to form the water receiving cavity 23, or ribs are provided on the valve cover 20 in the direction of the valve body 10 so that the ribs enclose to form the water receiving cavity 23.

[0070] Specifically, please refer to 7 and Figure 9, when setting the water-containing cavity 23 in this embodiment, a surrounding rib 24 is provided on the valve cover 20. The surrounding rib 24 extends into the water-containing cavity 23 and surrounds the periphery of part of the surrounding column 22. A water-containing cavity 23 is formed between the surrounding rib 24 and the valve cover 20. The extending height of the surrounding rib 24 is less than that of the surrounding column 22, and the exhaust port 21 is located outside the surrounding rib 24 along the radial direction of the guide water column 11. Thus, when the silencing valve 100 is placed upside down, the slurry in the accommodating cavity 12 just flows back into the water-containing cavity 23 to be able to wash the valve cover 20. By setting the surrounding rib 24 on the valve cover 20, the thickness of the valve cover 20 can be reduced, which is convenient for the injection molding of the valve cover 20.

[0071] Among them, a guide rib 13 is provided on the valve body 10, and the guide rib 13 is inserted and cooperated with the surrounding rib 24.

[0072] In addition, in order to achieve the noise reduction effect, when the valve cover 20 covers the opening of the accommodating cavity 12, an enclosed cavity 14 is formed between the surrounding rib 24 and the valve body 10, and the surrounding rib 24 is provided with notches 25 respectively communicating with the exhaust port 21 and the water-containing cavity 23. In this way, the sound propagates from the accommodating cavity 12 into the water-containing cavity 23, then passes through the notch 25 and is dissipated from the exhaust port 21. When the sound wave conducts on the inner wall of the valve body 10, it is reflected from the inner wall of the valve body 10 to the outer wall of the surrounding rib 24, and the sound wave undergoes multiple reflections and interferes with each other, thus achieving the sound absorption effect.

[0073] Please refer to Figures 5 to 8 , in an embodiment of the present invention, in order to ensure the sealing performance when the entire silencing valve 100 is installed on the crushing cup 210, the silencing valve 100 further includes a sealing ring 30. The sealing ring 30 is sleeved outside the valve body 10 and is used to seal the outlet. Through the setting of the sealing ring 30, it can be fitted on the inner wall of the opening to seal the opening and prevent the leakage of slurry and sound.

[0074] It can be understood that the sealing ring 30 can also be set in the above-mentioned Embodiment 1 and Embodiment 2 to ensure the sealing performance at the opening; and the valve cover 20 in the above-mentioned Embodiment 1 and Embodiment 2 can also be provided with the same surrounding rib 24 and water-containing cavity 23 structures.

[0075] Specifically, the cooking cup of this embodiment further includes a cup cover 220. The cup cover 220 is provided with an opening, and when the valve body 10 is arranged on the cooking cup, it is arranged on the cup cover 220.

[0076] The above muffling valve 100 has a water guiding column 11 provided on the valve body 10 and a receiving cavity 12 provided inside the valve body 10, so that water columns can be left in both the water guiding column 11 and the receiving cavity 12. By reflecting sound waves through the water columns, the effect of noise reduction is achieved. By arranging the water guiding column 11 outside the valve body 10, when the food processing is finished, the slurry can flow back into the crushing cup 210 through the water guiding column 11, avoiding the situation that the slurry remains in the valve body 10 and causes bacterial growth. Or by arranging the water guiding column 11 inside the valve body 10, a certain height of liquid level can always be maintained in the receiving cavity 12, achieving a good noise reduction effect. By setting the valve cover 20 and the valve body 10 in a detachable manner, it is convenient to disassemble and clean the valve cover 20 and the valve body 10 after the food processing is completed.

[0077] Embodiment 4

[0078] Please refer to Figure 1 , in the fourth embodiment of the present invention, a cooking machine 200 is further provided, which includes a crushing cup 210, a driving mechanism 230, a crushing knife 240, and the above muffling valve.

[0079] Among them, the crushing cup 210 has an outlet. Specifically, the crushing cup 210 includes a cup cover 220, and the cup cover 220 is provided with an outlet. The driving mechanism 230 is arranged at the bottom of the crushing cup 210 and at least includes a driving motor, or may also include a speed reducer. The crushing knife 240 is arranged inside the crushing cup 210 and is electrically connected to the driving mechanism 230 for crushing the food in the crushing cup 210 under the drive of the driving mechanism 230.

[0080] Among them, the driving mechanism 230 can be integrally arranged with the crushing cup 210, or can also be arranged on the base, and the crushing knife 240 is arranged inside the crushing cup 210.

[0081] In the above cooking machine 200, since a muffling valve 100 is provided at the opening of the crushing cup 210, a water guiding column 11 is provided on the valve body 10 and a receiving cavity 12 is provided inside the valve body 10, so that water columns can be left in the water guiding column 11 and the receiving cavity 12. By reflecting sound waves through the water columns, the effect of noise reduction is achieved, improving the user experience.

[0082] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches are also regarded as the protection scope of the present invention.

Claims

1. A silencer valve (100) is provided at the outlet of the blending cup (210), characterized in that: include: A valve body (10), wherein a water guide column (11) is provided on the valve body (10), a receiving chamber (12) is provided inside the valve body (10), and the water guide column (11) is connected between the inner chamber of the blending cup (210) and the receiving chamber (12); A valve cover (20) covers the opening of the valve body (10), and an exhaust port is provided on the valve cover (20), and the exhaust port is communicated with the accommodating chamber (12).

2. The silencer valve (100) according to claim 1, characterized in that: The water guide column (11) is located in the accommodating cavity (12) and extends toward the inner cavity of the blending cup (210).

3. The silencer valve (100) according to claim 2, characterized in that: The height of the water column formed in the water guide column (11) is h1, the radius of the inner cavity of the water guide column (11) is r1, and the cross-sectional area s of the inner cavity of the water guide column (11) is s = πr1 2 , where 0.3 < h1 / s < 10, h1 ≥ 1 mm, and 1 mm ≤ r1 ≤ 5 mm.

4. The silencer valve (100) according to any one of claims 1 to 3, characterized in that: The valve cover (20) is provided with a surrounding column (22), the surrounding column (22) extends into the accommodating cavity (12), and has a gap with the bottom wall of the accommodating cavity (12), and along the axial direction of the water guide column (11), the projection of the cross section of the inner cavity of the surrounding column (22) on the reference plane at least partially overlaps with the projection of the cross section of the inner cavity of the water guide column (11) on the reference plane.

5. The silencer valve (100) according to claim 1, characterized in that: The water guide column (11) extends into the accommodating chamber (12), and a surrounding column (22) is provided on the valve cover (20). The surrounding column (22) surrounds part of the water guide column (11) and has gaps with the outer wall of the water guide column (11), the inner wall of the accommodating chamber (12), and the bottom wall of the accommodating chamber (12).

6. The silencer valve (100) according to claim 5, characterized in that: The height h2 of the water guide column (11) is ≥3 mm.

7. The silencer valve (100) according to claim 6, characterized in that: The volume of liquid contained in the water-conducting column (11) is V1, and the volume of liquid contained between the water-conducting column (11) and the surrounding column (22) is V2, wherein V1≥V2.

8. The silencer valve (100) according to any one of claims 1 to 3 or any one of claims 5 to 7, characterized in that: The valve cover (20) and the valve body (10) are detachably connected.

9. The silencer valve (100) according to claim 8, characterized in that: The valve cover (20) is provided with a water containing chamber (23), and the water containing chamber (23) is communicated with the containing chamber (12).

10. The silencer valve (100) according to claim 9, characterized in that: The valve cover (20) is provided with a rib (24), the rib (24) extending into the water containing cavity (23), and the rib (24) surrounding part of the surrounding column (22), the water containing cavity (23) being formed between the rib (24) and the valve cover (20), and the exhaust port is located on the outside of the rib (24) along the radial direction of the water guide column (11).

11. The silencer valve (100) according to claim 10, characterized in that: When the valve cover (20) is arranged to cover the opening of the accommodating chamber (12), an enclosed chamber (14) is formed between the rib (24) and the valve body (10), and the rib (24) is provided with a notch (25) which is respectively connected to the exhaust port and the water accommodating chamber (23).

12. The silencer valve (100) according to any one of claims 1 to 3 or any one of claims 5 to 7 or 9 or 10, characterized in that: The silencer valve (100) further comprises a sealing ring (30), wherein the sealing ring (30) is sleeved outside the valve body (10) and is used to seal the outlet.

13. A food processor (200), characterized in that: include: A blending cup (210), wherein the blending cup (210) has an outlet; A driving mechanism (230) is disposed at the bottom of the blending cup (210); a crushing knife (240), disposed in the crushing cup (210), electrically connected to the driving mechanism (230), and used for crushing the food in the crushing cup (210) under the drive of the driving mechanism (230); The silencer valve (100) according to any one of claims 1 to 12, wherein the silencer valve (100) is detachably arranged at the opening.

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