Noise reduction valve

Abstract

The utility model discloses a noise reduction valve which comprises a valve seat and a valve cover. The valve seat is provided with a mounting end, the peripheral side of the mounting end can be matched with the feeding port, a noise reduction cavity is formed in the mounting end and comprises a first half cavity and a second half cavity which are communicated with each other, and the mounting end is provided with an air passing hole communicated with the second half cavity; the valve cover is connected with the valve seat so that the noise reduction cavity can be arranged in the installation end in a sealed mode, and the valve cover is provided with an exhaust hole communicated with the first half cavity and the outside. Through the arrangement, the noise is absorbed by utilizing the resonance phenomenon of the cavity, and the influence of the noise on the use feeling of a user is greatly eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a noise reduction valve. Background Art

[0002] Existing food processors usually have crushing and heating functions, and are generally composed of a machine base and a mixing cup, wherein the mixing cup includes a cup body and a cup lid. In order to facilitate the feeding of materials during the process, a feeding channel is provided in the center of the cup lid, and a feeding cover is provided at the feeding channel to close the feeding channel during use. On the one hand, it avoids the danger of excessive pressure inside the machine during stirring or heating, and on the other hand, it has a certain effect of blocking noise. In addition, an exhaust gap is provided at the joint between the feeding cover and the feeding channel to ensure the balance of internal and external pressure of the cup body.

[0003] In order to improve the food mixing performance, the motor speed of this type of food processor is set at more than 15,000 revolutions per minute, so the powder cutting blade in the mixing cup will rotate at high speed when working, which will generate very high noise. Although the feeding cover can block some of the noise, some noise will still be transmitted to the outside through the exhaust gap, increasing the noise of the food processor when working and affecting the user experience. Utility Model Content

[0004] In order to solve at least one technical problem existing in the above-mentioned prior art, the present invention provides a noise reduction valve. A noise reduction cavity is arranged in the valve seat. The noise reduction cavity has a first half cavity and a second half cavity that are connected. When noise passes through the noise reduction cavity, the cavity resonance can be used to absorb the noise, thereby achieving the effect of noise reduction and silencing.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] Noise reduction valve, including:

[0007] The valve seat is provided with a mounting end, the outer peripheral side of the mounting end can be matched with the feeding port, a noise reduction cavity is provided in the mounting end, the noise reduction cavity includes a first half cavity and a second half cavity that are interconnected, and the mounting end is provided with an air hole that is connected to the second half cavity;

[0008] The valve cover is connected to the valve seat so that the noise reduction cavity is sealed in the installation end. The valve cover is provided with an exhaust hole connecting the first half cavity with the outside.

[0009] Specifically, a partition is provided in the noise reduction cavity, which divides the interior of the noise reduction cavity into a first half cavity and a second half cavity, and an air passage connecting the first half cavity and the second half cavity is provided on the partition.

[0010] Specifically, the end of the air passage is located between the partition and the end of the noise reduction cavity.

[0011] Specifically, the cross section of the noise reduction cavity is set to be rectangular, and the partition is set corresponding to the median line of the cross section of the noise reduction cavity, so that the interior of the noise reduction cavity is equally divided into a first half cavity and a second half cavity.

[0012] Specifically, the length of the portion of the gas passage located in the first half cavity is equal to the length of the portion of the gas passage located in the second half cavity.

[0013] Specifically, the air passage is arranged corresponding to the center of the partition.

[0014] Specifically, the thickness of the partition gradually decreases from the edge to the center.

[0015] Specifically, the end of the mounting end extends axially to form an extension wall, and a sealing ring is provided on the outer peripheral side of the extension wall. When the outer peripheral side of the mounting end is matched with the feeding port, the outer peripheral side of the sealing ring forms a sealing fit with the feeding port.

[0016] Specifically, it also includes:

[0017] A slider, wherein one end of the slider is provided with a placement column and the other end is provided with a buckle connection platform;

[0018] One end of the valve seat is provided with a buckle groove, and the other end is provided with a mounting groove, a placement position is provided in the mounting groove corresponding to the placement column, and the valve cover is provided with a first buckle position corresponding to the buckle groove and a second buckle position corresponding to the buckle platform;

[0019] The slider is installed in the installation groove by placing the elastic member through the placement column and inserting it into the placement position, thereby being connected to the valve seat, and the snap-on platform is snapped on the second snap-on position under the action of the elastic member and connected to the valve cover, and the valve seat is then snapped with the snap-on groove through the first snap-on position and connected to the valve cover, thereby forming a detachable connection between the valve seat and the valve cover through the slider.

[0020] Specifically, the slider is provided with clamping columns on opposite sides, and the installation slot is provided with clamping grooves corresponding to the clamping columns. When installed in the installation slot, the clamping columns fit into the clamping grooves and can slide along the clamping grooves, so that the slider slides under the guidance of the clamping grooves.

[0021] In summary, compared with the prior art, the noise reduction valve provided by the present invention has the following technical effects:

[0022] By arranging a mounting end on the valve seat and arranging a noise reduction cavity in the mounting end, the noise reduction cavity has a first half cavity and a second half cavity which are interconnected, and an air hole which is connected to the second half cavity is arranged at the mounting end, so that the outer peripheral side of the valve seat mounting end can be matched with the feeding port, so that the noise enters the second half cavity from the air hole along with the air pressure and then enters the first half cavity, so that the first half cavity and the second half cavity generate vibrations of the same frequency under the action of noise and cancel each other out, thereby utilizing cavity resonance for noise reduction, and finally a valve cover connected to the valve seat is arranged to ensure that the noise reduction cavity is sealed in the mounting end, and the valve cover is provided with an exhaust hole which is connected to the first half cavity and the outside world, so as to balance the internal and external air pressures of the food processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of an embodiment of a noise reduction valve of the present utility model;

[0024] Figure 2 This is a disassembled diagram of an embodiment of a noise reduction valve of the utility model;

[0025] Figure 3 This is an exploded view of a cover plate and a slider in an embodiment of a noise reduction valve of the present utility model;

[0026] Figure 4 This is a three-dimensional diagram of a cover plate in an embodiment of a noise reduction valve of the present utility model;

[0027] Figure 5 This is a three-dimensional diagram of a top cover in an embodiment of a noise reduction valve of the present utility model;

[0028] Figure 6 This is a cross-sectional view of a first state of an embodiment of a noise reduction valve of the present utility model;

[0029] Figure 7 This is a cross-sectional view of a second state of an embodiment of a noise reduction valve of the present utility model;

[0030] Figure 8 This is a three-dimensional diagram of a noise reduction cavity in an embodiment of a noise reduction valve of the present utility model;

[0031] Figure 9 This is a three-dimensional diagram of an embodiment of a food processing machine of the present invention;

[0032] Figure 10 This is a schematic diagram of a noise reduction valve in a food processing machine embodiment of the present invention.

[0033] The meanings of the reference numerals are as follows:

[0034] 1. Valve seat; 10. Mounting end; 11. Mounting groove; 12. Snap-fit ​​groove; 13. Placement position; 14. Fixing buckle; 15. Air hole; 16. Extension wall; 17. Fixing groove; 18. Snap-fit ​​groove; 2. Slider; 21. Buckle groove; 22. Snap-fit ​​column; 23. Snap-fit ​​platform; 24. Placement column; 3. Valve cover; 31. First snap-fit ​​position; 32. Exhaust hole; 33. Second snap-fit ​​position; 34. Limiting rib; 4. Noise reduction cavity; 40. Partition; 41. First half cavity; 42. Second half cavity; 43. Air passage; 5. Elastic member; 6. Sealing ring; 61. Sealing rib. DETAILED DESCRIPTION

[0035] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0036] It should be understood that references throughout this specification to "one embodiment" or "an embodiment" mean that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present invention. Therefore, the appearances of "in one embodiment" or "in an embodiment" throughout this specification do not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0037] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention are only for describing specific embodiments and are not intended to limit the present invention.

[0039] Example 1

[0040] according to Figures 1 to 8 As shown, the utility model provides an embodiment of a noise reduction valve, comprising: a valve seat 1 and a valve cover 3.

[0041] Specifically, the valve seat 1 is provided with a mounting end 10, the outer peripheral side of the mounting end 10 can be matched with the feeding port, and a noise reduction cavity 4 is provided in the mounting end 10. The noise reduction cavity 4 includes a first half cavity 41 and a second half cavity 42 which are interconnected. The mounting end 10 is provided with an air hole 15 connected to the second half cavity 42. The diameter of the air hole 15 is less than 3 mm. The air holes 15 are preferably provided in two and are evenly arranged on the end face of the mounting end 10; the valve cover 3 is connected to the valve seat 1 so that the noise reduction cavity 4 is sealed in the mounting end 10, and the valve cover 3 is provided with an exhaust hole 32 connecting the first half cavity 41 with the outside world.

[0042] Through the above-mentioned setting, the cavity resonance phenomenon is utilized to absorb noise, thereby greatly eliminating the impact of noise on the user's experience.

[0043] like Figure 8 As shown, specifically, a partition 40 is provided in the noise reduction cavity 4, and the partition 40 divides the interior of the noise reduction cavity 4 into a first half cavity 41 and a second half cavity 42. The partition 40 is provided with an air passage 43 respectively connecting the first half cavity 41 and the second half cavity 42; further, the cross section of the noise reduction cavity 4 is set to be rectangular, and the partition 40 is set corresponding to the median line of the cross section of the noise reduction cavity 4, so that the interior of the noise reduction cavity 4 is equally divided into the first half cavity 41 and the second half cavity 42; preferably, the thickness of the partition 40 gradually decreases from the edge to the center.

[0044] More specifically, the end of the air passage 43 is located between the partition 40 and the end of the noise reduction cavity 4. Figure 10 As shown, the longitudinal distance between one end of the air passage 43 and the other end of the noise reduction cavity 4 is H1, and the longitudinal distance between the other end of the air passage 43 and the other end of the noise reduction cavity 4 is H2. The specific values ​​of H1 and H2 are set as: 2mm≦H1≦4mm, 2mm≦H2≦4mm; further, the length of the portion of the air passage 43 located in the first half cavity 41 is equal to the length of the portion of the air passage 43 located in the second half cavity 42; more preferably, the air passage 43 is arranged corresponding to the center of the partition 40; and the projection surface of the noise reduction cavity 4 can be arranged in a circular shape, and the overall outer contour of the noise reduction cavity 4 can be arranged in a cylindrical or cylindrical shape. Furthermore, the projection surface of the air passage 43 can also be arranged in a circular shape, and even the center of the partition 40 extends along the axial direction of the noise reduction cavity 4 to form an extension portion, and the air passage 43 is arranged in the extension portion.

[0045] In practice, an extension wall 16 is formed at the end of the mounting end 10 extending axially, and a sealing ring 6 is provided on the outer peripheral side of the extension wall 16. When the outer peripheral side of the mounting end 10 is fitted with the feed port, the outer peripheral side of the sealing ring 6 forms a sealing fit with the feed port; optionally, a fixing groove 17 is formed on the outer periphery of the extension wall 16, and the fixing groove 17 is formed by the inner concave portion of the outer peripheral side of the extension wall 16, and the sealing ring 6 is sleeved in the fixing groove 17 and provided on the outer peripheral side of the extension wall 16; in order to enhance the sealing performance of the sealing ring 6, a sealing rib 61 may be formed on the outer peripheral side of the sealing ring 6, and the sealing ring 6 forms a sealing fit with the feed port through the fitting of the sealing rib 61 with the inner side of the feed port.

[0046] In actual use, a fixing buckle 14 is provided on the outer peripheral side of the mounting end 10, and the outer peripheral side of the mounting end 10 is engaged with the feeding port through the fixing buckle 14 and is matched with the feeding port; in addition, at least two fixing buckles 14 can be provided and evenly arranged on the outer peripheral side of the mounting end 10 along the circumference of the mounting end 10.

[0047] like Figure 3 、 Figure 4 As shown, in practice, this noise reduction valve embodiment also includes: a slider 2, a placement column 24 is provided at one opposite end of the slider 2, and a snap-on platform 23 is provided at the other opposite end; accordingly, a snap-on groove 18 is provided at one end of the valve seat 1, and a mounting groove 11 is provided at the other end, and a placement position 13 is provided in the mounting groove 11 corresponding to the placement column 24, and a first snap-on position 31 is provided corresponding to the snap-on groove 18 of the valve cover 3, and a second snap-on position 33 is provided corresponding to the snap-on platform 23; when used, the slider 2 is installed in the mounting groove 11 by sleeve-fitting the elastic member 5 through the placement column 24 and inserting it into the placement position 13, thereby being connected to the valve seat 1, and the snap-on platform 23 is snap-on to the second snap-on position 33 under the action of the elastic member 5 and being connected to the valve cover 3, and the valve seat 1 is then snap-on to the snap-on groove 18 through the first snap-on position 31 and connected to the valve cover 3, thereby forming a detachable connection between the valve seat 1 and the valve cover 3 through the slider 2.

[0048] The slider 2 is further provided with a buckle groove 21, so that the user can apply a force to compress the elastic member 5 through the buckle groove 21 to pull the slider 2, so that the buckle platform 23 is separated from the second buckle position 33. The elastic member 5 can be a spring, such as Figure 6 As shown, when the valve seat 1 and the valve cover 3 are connected, the overlapping width L1 of the fastening platform 23 and the second fastening position 33 is greater than 1.5 mm. Figure 7 As shown, when the elastic member 5 is compressed to separate the fastening platform 23 from the second fastening position 33 , the distance L2 between the fastening platform 23 and the second fastening position 33 is greater than 1 mm.

[0049] In addition, the slider 2 is provided with a clamping column 22 on opposite sides, and the mounting groove 11 is provided with a clamping groove 12 corresponding to the clamping column 22. When installed in the mounting groove 11, the clamping column 22 is matched with the clamping groove 12 and can slide along the clamping groove 12, so that the slider 2 slides under the guidance of the clamping groove 12; and Figure 5 As shown, a limiting rib 34 is further provided in the valve cover 3 to limit excessive deviation of the mounting end 10 and ensure normal use.

[0050] Example 2

[0051] according to Figure 9 As shown, based on the same concept, the utility model also discloses a food processing machine, which is applied with the noise reduction valve as described above.

[0052] like Figure 10 As shown in the figure, the arrows indicate the emission paths of noise and air pressure. The specific noise reduction principles are as follows:

[0053] When the noise in the food processor enters the second half chamber 42 through the air hole 15 due to air pressure, the inner wall of the second half chamber 42 absorbs the noise and generates vibrations with the same frequency as the noise. The noise further enters the first half chamber 41 through the air passage 43 due to air pressure. The inner wall of the second half chamber 42 also absorbs the noise and generates vibrations with the same frequency as the noise. As a result, the vibrations of the first half chamber 41 and the second half chamber 42 can cancel each other out when the vibration frequencies are the same, completely eliminating the noise.

[0054] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from the other embodiments. Reference can be made to the common and similar parts between the various embodiments. Although alternative embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they understand the basic inventive concepts. Therefore, the appended claims are intended to be interpreted as including the alternative embodiments and all changes and modifications that fall within the scope of the present invention.

[0055] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity from another, and do not necessarily require or imply any actual relationship or order between these entities. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that an article or terminal device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the article or terminal device comprising the element.

[0056] The above is a detailed introduction to the technical solution provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. At the same time, for those skilled in the art, according to the principles and implementation methods of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. Noise reduction valve, characterized in that, include: A valve seat (1), wherein the valve seat (1) is provided with a mounting end (10), the outer peripheral side of the mounting end (10) can be matched with a feeding port, a noise reduction cavity (4) is provided in the mounting end (10), the noise reduction cavity (4) includes a first half cavity (41) and a second half cavity (42) that are interconnected, and the mounting end (10) is provided with an air hole (15) that is connected to the second half cavity (42); A valve cover (3) is connected to the valve seat (1) so that the noise reduction cavity (4) is sealed in the mounting end (10), and the valve cover (3) is provided with an exhaust hole (32) connecting the first half cavity (41) with the outside.

2. The noise reduction valve according to claim 1, characterized in that: A partition (40) is provided in the noise reduction cavity (4), and the partition (40) divides the interior of the noise reduction cavity (4) into the first half cavity (41) and the second half cavity (42). The partition (40) is provided with an air passage (43) respectively communicating with the first half cavity (41) and the second half cavity (42).

3. The noise reduction valve according to claim 2, characterized in that: The end of the air passage (43) is located between the partition (40) and the end of the noise reduction cavity (4).

4. The noise reduction valve according to claim 2, characterized in that: The cross section of the noise reduction cavity (4) is arranged to be rectangular, and the partition (40) is arranged corresponding to the midline of the cross section of the noise reduction cavity (4), so that the interior of the noise reduction cavity (4) is equally divided into the first half cavity (41) and the second half cavity (42).

5. The noise reduction valve according to claim 2, characterized in that: The length of the portion of the gas passage (43) located in the first half chamber (41) is equal to the length of the portion of the gas passage (43) located in the second half chamber (42).

6. The noise reduction valve according to claim 2, characterized in that: The air passage (43) is arranged corresponding to the center of the partition (40).

7. The noise reduction valve according to claim 2, characterized in that: The thickness of the partition (40) gradually decreases from the edge to the center.

8. The noise reduction valve according to any one of claims 1 to 7, characterized in that: The end of the mounting end (10) is extended in the axial direction to form an extension wall (16), and a sealing ring (6) is provided on the outer peripheral side of the extension wall (16). When the outer peripheral side of the mounting end (10) is matched with the feeding port, the outer peripheral side of the sealing ring (6) forms a sealing match with the feeding port.

9. The noise reduction valve according to any one of claims 1 to 7, characterized in that: Also includes: A slider (2), wherein one opposite end of the slider (2) is provided with a placement column (24) and the other opposite end is provided with a buckle platform (23); One end of the valve seat (1) is provided with a buckling groove (18), and the other end is provided with a mounting groove (11); a placement position (13) is provided in the mounting groove (11) corresponding to the placement column (24); the valve cover (3) is provided with a first buckling position (31) corresponding to the buckling groove (18), and a second buckling position (33) corresponding to the buckling platform (23); The slider (2) is connected to the elastic member (5) through the placement column (24) and inserted into the placement position (13) and installed in the installation groove (11), thereby being connected to the valve seat (1), and the buckling platform (23) is buckled on the second buckling position (33) under the action of the elastic member (5) and connected to the valve cover (3), and the valve seat (1) is then buckled with the buckling groove (18) through the first buckling position (31) and connected to the valve cover (3), thereby forming a detachable connection between the valve seat (1) and the valve cover (3) through the slider (2).

10. The noise reduction valve according to claim 9, characterized in that: The slider (2) is provided with clamping columns (22) on opposite sides, and the mounting groove (11) is provided with a clamping groove (12) corresponding to the clamping columns (22). When the slider (2) is mounted in the mounting groove (11), the clamping columns (22) fit in the clamping groove (12) and can slide along the clamping groove (12), so that the slider (2) slides under the guidance of the clamping groove (12).

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