Splash guard for a garbage disposer and garbage disposer

Abstract

The utility model relates to a splash-proof cover for kitchen garbage disposer and kitchen garbage disposer, and the back of the splash-proof cover is downward for facing the inside smashing cavity of kitchen garbage disposer, and the front is upward for facing the outside, the back of the splash-proof cover is the concave-convex surface of upper concave part and lower convex part arranged alternately in the circumference, and the surface of upper concave part is distributed with a plurality of small holes for absorbing noise. The kitchen garbage disposer comprises: garbage disposer main body, which is hollow inside and forms a smashing cavity, the upper part of the smashing cavity has a feeding port, and the lower part has a discharge port; smashing part, which is arranged in the smashing cavity and can work under the drive of the drive mechanism to smash the kitchen garbage entering from the feeding port; and splash-proof cover, which is arranged at the feeding port to open or close the feeding port. The utility model can block garbage splashing and reduce noise.

Description

Technical Field

[0001] This utility model belongs to the field of waste treatment technology, specifically relating to a splash guard for a kitchen waste disposer and a kitchen waste disposer. Background Technology

[0002] Existing food waste disposers generally include a housing with an inlet and an outlet, a shredder inside the housing, and a drive mechanism for driving the shredder. The shredder, driven by the drive mechanism, can shred the food waste that enters from the inlet.

[0003] Specifically, the Chinese utility model patent "A Kitchen Waste Processor" with patent number 202221965311.8 and authorization announcement number CN218292145U includes a housing and a grinding hood. A grinding disc is installed inside the grinding hood. The grinding hood includes an upper grinding hood and a lower grinding hood. A feeding port is opened at the top of the upper grinding hood, and a discharge port is opened on the lower grinding hood. An annular wall is installed on the inner peripheral wall of the lower side of the upper grinding hood. The annular wall is located above the grinding disc, and an annular cavity is formed between the annular wall and the upper grinding hood. A water inlet connected to the annular cavity is opened on the outer peripheral wall of the upper grinding hood. A water outlet is opened on the inner wall of the annular cavity. An annular cutter that can rotate under water pressure is installed in the annular cavity.

[0004] For example, the Chinese utility model patent "A Kitchen Waste Treatment System" with patent number 202321652436.X and authorization announcement number CN220538788U includes a sink and a garbage disposal unit located below the sink. The garbage disposal unit includes a grinding chamber and a grinding disc located inside the grinding chamber. The grinding chamber has a discharge port located below the grinding disc. The bottom of the sink has a stepped structure, and the top of the stepped structure has a main feeding port. A splash guard is installed on the main feeding port. The top of the grinding chamber is installed on the main feeding port.

[0005] Existing food waste disposers are designed not only to ensure efficient grinding but also to provide a superior user experience and ensure safety. To prevent waste from splashing out of the inlet during processing, a splash guard is typically installed. However, food waste disposers generate considerable noise during operation, which can be disruptive to the environment and users. Traditional splash guards primarily focus on preventing waste from splashing, offering limited noise reduction capabilities. Furthermore, the diverse materials used in these guards can lead to issues such as poor corrosion resistance and aging, making them unsuitable for the long-term stable operation of food waste disposers. Therefore, a splash guard is needed that effectively prevents waste from splashing, significantly reduces internal noise within the disposer's cavity, and possesses both good corrosion resistance and flexibility. Utility Model Content

[0006] The first technical problem to be solved by this utility model is to provide a splash guard for a food waste disposer, which can prevent garbage from splashing while reducing noise, in light of the existing technology.

[0007] The second technical problem to be solved by this utility model is to provide a food waste disposer with the above-mentioned splash-proof cover.

[0008] The technical solution adopted by this utility model to solve the first technical problem mentioned above is: a splash guard for a food waste disposer, wherein the side of the splash guard facing the internal crushing chamber of the food waste disposer is the downward-facing back side, and the side facing the outside is the upward-facing front side. The back side of the splash guard is a concave-convex surface with an upper concave part and a lower convex part arranged alternately in the circumferential direction.

[0009] Its features are:

[0010] The surface of the upper recess has multiple small holes spaced apart for absorbing noise.

[0011] When the food waste disposer is working, the noise generated in the grinding chamber propagates as sound waves to the back of the splash cover. The concave and convex surfaces on the back of the splash cover help reduce noise. Furthermore, when sound waves entering the upper concave section are incident on the small holes, some are reflected back into the upper concave section, while others enter the small holes. During this process, the reflected waves interfere with the incident waves, weakening the sound wave intensity and achieving a noise reduction effect. The sound waves entering the small holes cause the air column inside to vibrate. However, due to the small diameter of the holes, the air column experiences significant viscous forces during vibration. Frequent collisions between air molecules generate frictional heat, converting sound energy into heat energy and dissipating it, thus absorbing and reducing noise. Simultaneously, the splash cover prevents food waste from splashing during the grinding process, improving the user experience and safety.

[0012] To improve the noise reduction effect, preferably, the diameter of the small hole is 0.5 to 1.0 mm, the spacing between adjacent small holes is greater than the diameter of the small hole, and the depth of the small hole is 0.1 to 1 mm.

[0013] By rationally designing parameters such as the diameter, spacing, and depth of the holes, the anti-fouling cover can effectively absorb the noise generated by the garbage disposal unit over a wide frequency range. It can reduce high-frequency noise, such as the sharp sound generated during garbage grinding, and also suppress mid- and low-frequency noise to a certain extent.

[0014] Preferably, the splash guard has a through hole in the center, allowing kitchen waste from the outside to pass through; the upper concave portion and the lower convex portion are arranged around the through hole. Thus, the user can feed food through the through hole without opening the splash guard.

[0015] To prevent noise from propagating through the through-hole, preferably, the through-hole is equipped with a sound-absorbing component that allows kitchen waste from the outside to pass through. The sound-absorbing component can reduce noise.

[0016] Preferably, the silencing element includes at least two silencing strips arranged circumferentially around the inner perimeter of the through hole. The outer end of each silencing strip is connected to the inner wall of the through hole, and the inner end of each silencing strip is a free end extending towards the center of the through hole. Furthermore, each silencing strip can undergo elastic deformation under the action of passing kitchen waste, thereby increasing the gap between adjacent silencing strips. The silencing strips can reduce noise while also preventing kitchen waste from splashing upwards during crushing.

[0017] Preferably, each sound-absorbing strip slopes downwards from the outside to the inside, so that the entire sound-absorbing strip forms an inverted cone shape. The inverted cone structure facilitates the downward passage of kitchen waste.

[0018] Furthermore, at least two silencing strips arranged circumferentially form a group, and there are at least two groups, which are arranged at intervals along the vertical direction within the inner circumference of the through hole.

[0019] The noise generated by the garbage disposal unit propagates upwards through the gaps between adjacent circumferential silencing strips into the through-hole. This causes interference between the incident and reflected sound waves between adjacent sets of silencing strips, weakening the sound wave intensity and achieving noise reduction. Simultaneously, as the sound waves propagate within the through-hole, airflow vibration causes friction and viscosity of air molecules, converting sound energy into heat energy for dissipation, further reducing noise. The through-hole also follows the Helmholtz resonance principle; when the sound wave frequency matches the through-hole's resonant frequency, the air column within the hole resonates, accelerating energy dissipation and effectively reducing noise at specific frequencies.

[0020] In the above embodiments, preferably, the inner wall of the through hole is provided with slits that extend vertically and penetrate the wall thickness, the number of slits is matched with the number of upper recesses, and each slit is located on the side of its corresponding upper recess.

[0021] The slits and / or through-holes are arranged to elastically deform and open under the action of passing food waste, thus facilitating the user's disposal of food waste. After the food waste is disposed of, the slits and / or through-holes return to their original position under their own elasticity, blocking food waste from splashing upwards.

[0022] Furthermore, the small hole is positioned to avoid the side where the slit of the upper recess is located.

[0023] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a kitchen waste disposer with a splash-proof cover as described above, characterized in that it includes:

[0024] The main body of the garbage disposer has a hollow interior forming a pulverizing chamber, with a feeding port at the top and a discharge port at the bottom.

[0025] A shredder is disposed inside the shredding chamber and can work under the drive of the drive mechanism to shred kitchen waste entering from the feed inlet;

[0026] The splash guard is located at the feeding port to open or close the feeding port.

[0027] Compared with existing technologies, the advantages of this invention are as follows: By distributing multiple small holes at intervals on the surface of the upper concave portion on the back of the splash cover for noise absorption, the noise generated in the pulverizing chamber during operation of the food waste disposer propagates to the back of the splash cover in the form of sound waves. The concave and convex surfaces on the back of the splash cover can reduce noise. Furthermore, when the noise sound waves entering the upper concave portion are incident on the small holes, some sound waves are reflected back into the upper concave portion, while others enter the small holes. During this process, the reflected waves interfere with the incident waves, weakening the sound wave intensity and achieving a noise reduction effect. Additionally, the sound waves entering the small holes cause the air column inside the holes to vibrate. However, due to the small aperture of the holes, the air column experiences significant viscous forces during vibration, and frequent collisions between air molecules generate frictional heat, converting sound energy into heat energy and dissipating it. This achieves noise absorption and reduction. Simultaneously, the splash cover prevents food waste from splashing during the pulverizing process, improving the user experience and safety. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the kitchen waste disposer according to an embodiment of the present utility model (with the splash guard open and the feeding port open);

[0029] Figure 2 This is a cross-sectional view of the kitchen waste disposer according to an embodiment of the present utility model (with the splash guard closed and the feeding port closed);

[0030] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0031] Figure 4 This is a schematic diagram of the structure of the splash guard in an embodiment of the present utility model;

[0032] Figure 5 This is a cross-sectional view of the splash guard of an embodiment of the present utility model. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] like Figures 1-5 As shown, this utility model provides a splash guard for a food waste disposer and a preferred embodiment of the food waste disposer. The food waste disposer includes a splash guard 1, a disposer body 2, a pulverizing component 2, and a drive mechanism 4.

[0035] The design of the garbage disposal unit body 2, the pulverizing component 2, and the drive mechanism 4 is the same as in the prior art: the garbage disposal unit body 2 has a hollow interior forming a pulverizing chamber 20, with a feeding port 20a at the top and a discharge port 20b on the lower side wall. The pulverizing component 3 is a conventional grinding disc, which is located inside the pulverizing chamber 20 and can rotate circumferentially around a centrally extending vertical axis under the drive of the drive mechanism 4 (which is a motor) to pulverize the kitchen waste entering from the feeding port 20a.

[0036] The splash guard is made entirely of rubber and is located at the feeding port 20a to open or close the feeding port 20a. The side of the splash guard facing the internal grinding chamber of the food waste disposer is the downward-facing back side 11, and the side facing the outside is the upward-facing front side 12. The back side 11 of the splash guard has an alternating circumferential arrangement of an upper concave portion 110 and a lower convex portion 111. The surface of the upper concave portion 110 has multiple small holes 112 spaced apart to absorb noise. The diameter of the small holes 112 is 0.5–1.0 mm (any value between 0.5–1.0 mm, such as 0.5 mm, 0.6 mm, 0.8 mm, 1 mm, etc.), the distance between adjacent small holes 112 is greater than the diameter of the small holes 112 (in this embodiment, the perforation rate is 1–3%), and the depth of the small holes 112 is 0.1–1 mm (any value between 0.1–1 mm, such as 0.1 mm, 0.5 mm, 0.8 mm, 1 mm, etc.). The front of the splash cover is also a concave-convex surface, with the concave portion corresponding to the lower convex portion 111 of the back surface 11, and the convex portion corresponding to the upper concave portion 110 of the back surface 11. Furthermore, the splash cover has a through hole 13 running vertically through its center to allow external food waste to pass through; the upper concave portion 110 and the lower convex portion 111 are arranged around the periphery of the through hole 13. A sound-absorbing component is provided inside the through hole 13 to allow external food waste to pass through. Specifically, the sound-absorbing component includes multiple sound-absorbing strips 14 arranged circumferentially around the inner periphery of the through hole 13. The outer end of each sound-absorbing strip 14 is connected to the inner wall of the through hole 13, and the inner end of each sound-absorbing strip 14 is a free end extending towards the center of the through hole 13. Each sound-absorbing strip 14 slopes downwards from the outside to the inside, thus forming an inverted cone shape. Each sound-absorbing strip 14 can undergo elastic deformation under the action of passing food waste, increasing the gap between adjacent sound-absorbing strips 14. Meanwhile, five groups of sound-absorbing strips 14 are arranged circumferentially and spaced apart along the vertical direction within the through-hole 13. Please refer to [link / reference] for details. Figure 3 , 5 .

[0037] In this embodiment, the inner wall of the through hole 13 is provided with slits 131 extending vertically and penetrating the wall thickness. The number of slits 131 matches the number of upper recesses 110, and each slit 131 is located on the side of its corresponding upper recess 110. Figure 4As shown, the small hole 112 is positioned away from the side where the slit 131 of the upper recess 110 is located. Because the splash guard is made of elastic rubber, the slit 131 and the through hole 13 can elastically deform and open under the action of passing kitchen waste. After the kitchen waste passes through, the slit 131 and the through hole 13 elastically return to their original position.

[0038] In this embodiment, the design of the upper concave and lower convex parts on the back of the splash cover, the design of the small hole in the upper concave part, the central through hole, and the design of the sound-absorbing strip located in the inner perimeter of the through hole are conducive to reducing the noise of the food waste processor during operation and can effectively prevent food waste from splashing in the crushing chamber.

[0039] In the specification and claims of this utility model, terms indicating direction, such as "upper," "lower," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A splash guard for a food waste disposer, wherein the side of the splash guard facing the internal grinding chamber of the food waste disposer is the downward-facing back side (11), and the side facing the outside is the upward-facing front side (12), wherein the back side (11) of the splash guard is a concave-convex surface with an upper concave part (110) and a lower convex part (111) arranged alternately in the circumferential direction. Its features are: The surface of the upper recess (110) is provided with a plurality of small holes (112) for absorbing noise.

2. The splash guard according to claim 1, characterized in that: The diameter of the small hole (112) is 0.5 to 1.0 mm, the spacing between adjacent small holes (112) is greater than the diameter of the small hole (112), and the depth of the small hole (112) is 0.1 to 1 mm.

3. The splash guard according to claim 1, characterized in that: The splash guard has a through hole (13) in the center to allow kitchen waste from the outside to pass through; the upper concave part (110) and the lower convex part (111) are arranged around the through hole (13).

4. The splash guard according to claim 3, characterized in that: The through hole (13) is equipped with a sound-absorbing component that allows kitchen waste from the outside to pass through.

5. The splash guard according to claim 4, characterized in that: The silencing component includes at least two silencing strips (14) arranged circumferentially around the inner periphery of the through hole (13). The outer end of each silencing strip (14) is connected to the inner wall of the through hole (13), and the inner end of each silencing strip (14) is a free end extending toward the center of the through hole (13). Furthermore, each silencing strip (14) can undergo elastic deformation under the action of passing kitchen waste, thereby increasing the gap between adjacent silencing strips (14).

6. The splash guard according to claim 5, characterized in that: Each silencing strip (14) is inclined downward from the outside to the inside, so that each silencing strip (14) as a whole forms an inverted cone shape.

7. The splash guard according to claim 5, characterized in that: At least two silencing strips (14) arranged circumferentially constitute a group, and there are at least two groups, which are arranged at intervals in the vertical direction within the through hole (13).

8. The splash guard according to any one of claims 3 to 7, characterized in that: The inner wall of the through hole (13) is provided with slits (131) that extend vertically and penetrate the wall thickness. The number of slits (131) matches the number of upper recesses (110), and each slit (131) is located on the side of its corresponding upper recess (110). The slit (131) and / or the through hole (13) are arranged to open elastically under the action of passing kitchen waste.

9. The splash guard according to claim 8, characterized in that: The small hole (112) is provided on the side that avoids the slit (131) of the upper recess (110).

10. A food waste disposer having a splash-proof cover as described in any one of claims 1 to 9, characterized in that... Including: The main body (2) of the garbage disposal unit has a hollow interior forming a crushing chamber (20), the upper part of which has a feeding port (20a) and the lower part has a discharge port (20b); The crushing component (3) is located in the crushing chamber (20) and can work under the drive of the drive mechanism (4) to crush kitchen waste entering from the feeding port (20a); The splash guard is located at the feeding port (20a) to open or close the feeding port (20a).

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