A garbage disposer

Abstract

The application relates to a garbage processor, which comprises a grinding cavity, at least two groups of grinding devices arranged in the grinding cavity, and a driving shaft connected with the grinding devices, each group of grinding devices is arranged in sequence along the axial direction of the driving shaft, and at least two groups of adjacent grinding devices are partially connected. The application gradually grinds food garbage by arranging multiple groups of grinding devices in the grinding cavity, so that the grinding is more sufficient, the ground garbage particles are smaller, and the sewer is prevented from being blocked.

Description

Technical Field

[0001] This invention relates to the field of food waste disposal technology in the kitchen, and in particular to a garbage disposer. Background Technology

[0002] When people wash pots and pans, food waste easily flows directly into the sewer with the water. Over time, this can clog the sewers, causing great inconvenience to household life. The emergence of food waste disposers has solved this problem. A food waste disposer is a kitchen appliance that uses a motor to drive a grinding disc to rotate, causing food waste to impact, cut, and rub against the grinding parts on the disc, thereby reducing the volume of the food waste and allowing it to be directly disposed of through the sewer.

[0003] Most garbage disposers on the market are single-layer grinding discs, which do not grind food waste sufficiently. The resulting garbage particles are relatively large and easily clog drains. Alternatively, they may have a single-layer grinding disc with a serrated blade underneath, but this blade can only cut some fibrous materials and has little impact on the size of food waste particles.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a garbage disposer that can perform layered grinding. By setting up multiple grinding devices, the efficiency of garbage disposal is improved, and the ground garbage particles are made finer, thus avoiding clogging of the sewer.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A garbage disposal unit includes a grinding chamber, at least two sets of grinding devices disposed in the grinding chamber, and a drive shaft connected to the grinding devices. The grinding devices are arranged sequentially along the axial direction of the drive shaft, and at least two adjacent grinding devices are partially connected.

[0008] In the above solution, multiple grinding devices are set in the grinding chamber to gradually grind food waste, making the grinding more thorough and the resulting waste particles finer, thus avoiding clogging the sewer.

[0009] Furthermore, the grinding device includes a grinding disc and a grinding ring, the grinding disc and the grinding ring being arranged to rotate relative to each other, and the grinding disc of one set of grinding devices being connected to the grinding ring of another adjacent set of grinding devices.

[0010] Furthermore, the grinding discs and grinding rings connected in the two sets of adjacent grinding devices are mounted on the drive shaft, and the grinding rings and grinding discs corresponding one-to-one with the connected grinding discs and grinding rings are mounted on the inner wall of the grinding chamber.

[0011] Furthermore, the channels through which waste particles flow from each set of grinding devices to the next set of grinding devices gradually narrow.

[0012] In the above scheme, by strictly limiting the size of the channel through which each layer of garbage particles flows to the next set of grinding devices, food waste is thoroughly ground, ultimately forming finer garbage particles and preventing blockage of the sewer.

[0013] Furthermore, it includes a first grinding device and a second grinding device, wherein the first grinding device is located above the second grinding device and is used for preliminary treatment of the waste; the second grinding device is directly or indirectly connected to the first grinding device and is used to further treat the pre-treated waste in conjunction with the first grinding device.

[0014] Furthermore, the first grinding device includes a first grinding disc and a first grinding ring, wherein the first grinding disc and the first grinding ring are rotatably arranged relative to each other;

[0015] The second grinding device includes a second grinding disc and a second grinding ring, the second grinding disc and the second grinding ring being rotatably arranged relative to each other; the first grinding disc and the second grinding ring are connected.

[0016] Preferably, the first grinding disc is mounted on the drive shaft, the second grinding ring is connected to the first grinding disc, and the drive shaft drives the first grinding disc and the second grinding ring to rotate together;

[0017] Preferably, the second grinding disc is disposed below the second grinding ring and installed on the inner wall of the grinding chamber, with the upper end face of the second grinding disc forming a gap with the lower end face of the second grinding ring;

[0018] Preferably, the outer peripheral edge of the second grinding disc forms a gap with the inner wall of the grinding cavity;

[0019] Preferably, the first grinding ring is mounted on the inner wall of the grinding chamber, and the inner wall of the first grinding ring forms a gap with the outer peripheral edge of the first grinding disc;

[0020] Preferably, the gap formed between the upper end face of the second grinding disc and the lower end face of the second grinding ring is wider than the gap formed between the outer peripheral edge of the second grinding disc and the inner wall of the grinding cavity;

[0021] Preferably, the gap formed between the inner wall of the first grinding ring and the outer peripheral edge of the first grinding disk is wider than the gap formed between the outer peripheral edge of the second grinding disk and the inner wall of the grinding cavity;

[0022] Preferably, the outer diameter of the second grinding ring is less than or equal to the diameter of the first grinding disc, and the diameter of the second grinding disc is greater than the diameter of the first grinding disc.

[0023] In the above scheme, the first grinding disc and the second grinding ring are connected, which reduces the connection between the second grinding ring and the motor, saves space, and reduces the burden on the motor, making the rotation of the second grinding ring and the first grinding disc more stable; the first grinding ring and the second grinding disc are directly or indirectly installed in the grinding chamber and cannot rotate, which reduces the burden on the motor, makes the motor and the grinding device operate more stably, and reduces noise.

[0024] Furthermore, the first grinding disc is provided with a plurality of first through holes for the passage of garbage particles; the second grinding disc is provided with a plurality of second through holes for the passage of garbage particles; the diameter of the second through holes is smaller than the diameter of the first through holes.

[0025] Furthermore, both the first and second grinding discs are provided with grinding elements for grinding waste;

[0026] Preferably, at least the grinding element of the first grinding disc includes two grinding hammers and two protrusions, wherein the grinding hammers and the protrusions are alternately arranged at intervals in the circumferential direction;

[0027] Preferably, the two grinding hammers are arranged symmetrically at the center and / or the two convex bulges are arranged symmetrically at the center;

[0028] Preferably, the total area occupied by the adjacent grinding hammers and protrusions on the upper surface of the first grinding disk is less than one-quarter of the area of ​​the upper surface of the first grinding disk.

[0029] Preferably, the convex bulge includes a central convexity and three peripheral convexities arranged around the central convexity. The three peripheral convexities are respectively connected to the central convexity. The bottom surfaces of the central convexity and the three peripheral convexities are all connected to the upper surface of the first grinding disc. The highest point of each of the three peripheral convexities is lower than the highest point of the central convexity.

[0030] Furthermore, two sets of drainage holes are provided on the first grinding disc, each set of drainage holes corresponds to each grinding hammer, and each set of drainage holes and each convex bulge are respectively arranged on both sides of the grinding hammer along the circumferential direction.

[0031] Furthermore, the first grinding disc has an opening on its outer peripheral edge, and the second grinding ring has a protrusion at its upper end. The first grinding disc and the second grinding ring are connected by the protrusion and the opening.

[0032] Preferably, the opening and the protrusion engage;

[0033] Preferably, there are four openings and four protrusions, arranged in a one-to-one correspondence.

[0034] The following beneficial effects are achieved by adopting the technical solution described in this invention:

[0035] The garbage disposer provided by this invention grinds food waste step by step by setting multiple grinding devices from top to bottom in the grinding chamber, thereby improving the efficiency of garbage disposal and avoiding the ineffective grinding of garbage of different sizes when they are piled together. This makes the grinding more thorough, and the ground garbage particles are finer, thus avoiding clogging the sewer.

[0036] The garbage disposal unit provided by this invention strictly limits the size of the channel through which garbage particles from each layer flow to the next set of grinding devices, so that food waste is fully ground and ultimately forms finer garbage particles, preventing blockage of sewers.

[0037] The garbage disposal unit provided by this invention connects a first grinding disc and a second grinding ring, reducing the connection between the second grinding ring and the motor, saving space, and reducing the burden on the motor, making the rotation of the second grinding ring and the first grinding disc more stable; the first grinding ring and the second grinding disc are directly or indirectly installed in the grinding chamber and cannot rotate, reducing the burden on the motor, making the motor and grinding device operate more stably, and reducing noise. Attached Figure Description

[0038] Figure 1 This invention provides a schematic diagram of a garbage disposal unit structure.

[0039] Figure 2 This invention provides a schematic diagram of a garbage disposal unit structure.

[0040] Figure 3 : A schematic diagram of the first grinding disc structure of a garbage disposal unit provided in an embodiment of the present invention.

[0041] Figure 4 This invention provides a schematic diagram of the structure of a first grinding disc and a second grinding ring for a waste disposer.

[0042] Figure 5 : A schematic diagram of the first grinding ring structure of a garbage disposal unit provided in an embodiment of the present invention.

[0043] Figure 6 : A schematic diagram of the second grinding disc structure of a garbage disposal unit provided in an embodiment of the present invention.

[0044] Figure 7 : A schematic diagram of the second grinding ring structure of a garbage disposal unit provided in an embodiment of the present invention.

[0045] Figure 8 : A schematic diagram of the second grinding ring structure of a garbage disposal unit provided in an embodiment of the present invention.

[0046] Reference numerals: 1. Water tank; 2. Grinding chamber; 3. First grinding device; 31. First grinding disc; 311. First grinding hammer; 312. Second grinding hammer; 313. First convex bulge; 314. Second convex bulge; 315. First group of drainage holes; 316. Second group of drainage holes; 317. Opening; 32. First grinding ring; 321. Upper grinding hole; 4. Second grinding device; 41. Second grinding disc; 411. Third grinding hammer; 412. Fourth grinding hammer; 413. Central through hole; 414. Through hole; 42. Second grinding ring; 421. Lower grinding hole; 422. Protrusion; 5. Motor; 51. Drive shaft; 6. Support.

[0047] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0049] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] like Figure 1 and Figure 2 As shown, a garbage disposal unit includes a grinding chamber 2, at least two sets of grinding devices disposed in the grinding chamber 2, and a drive shaft 51 connected to the grinding devices. Each set of grinding devices is arranged sequentially along the axial direction of the drive shaft 51, and at least two adjacent sets of grinding devices are partially connected.

[0052] Specifically, the garbage disposer is fixed to the lower part of the water storage tank 1. The upper part of the garbage disposer includes a grinding chamber 2, and the lower part includes a motor 5. The drive shaft 51 of the motor 5 extends in the axial direction of the grinding chamber 2 and is located at the center of the grinding chamber 2. The central axis of the drive shaft 51 coincides with the central axis of the grinding chamber 2. Multiple grinding devices are arranged in the grinding chamber 2. Each set of grinding devices is arranged sequentially along the axial direction of the drive shaft 51 and is connected to the drive shaft 51.

[0053] Each grinding device includes a grinding disc and a grinding ring. The grinding disc and the grinding ring are arranged to rotate relative to each other. The grinding disc of one grinding device is connected to the grinding ring of another adjacent grinding device. That is, the grinding disc rotates around the central axis of the grinding cavity 2, or the grinding ring rotates around the central axis of the grinding cavity 2, or both the grinding disc and the grinding ring rotate around the central axis of the grinding cavity 2. The preferred solution is the former two.

[0054] To enable the grinding disc or grinding ring to rotate around the central axis of the grinding cavity 2, the grinding disc or grinding ring is mounted on the drive shaft 51. The drive shaft 51 drives the grinding disc or grinding ring to rotate around the central axis of the grinding cavity 2. The installation method for two partially connected adjacent grinding devices (i.e., the grinding disc of one grinding device is connected to the grinding ring of an adjacent grinding device) is as follows: the connected grinding discs and grinding rings of the two adjacent grinding devices are mounted on the drive shaft 51, and the corresponding grinding rings and grinding discs are directly or indirectly mounted on the inner wall of the grinding cavity 2. Here, "the grinding rings and grinding discs are directly or indirectly mounted on the inner wall of the grinding cavity 2" means that the grinding rings or grinding discs are directly connected to the inner wall of the grinding cavity 2, or that the grinding rings or grinding discs are connected to a bracket fixed to the inner wall of the grinding cavity 2.

[0055] This invention improves the efficiency of waste disposal by setting multiple grinding devices in the grinding chamber 2 to grind food waste step by step, avoiding the ineffective grinding of waste of different sizes when they are piled together, making the grinding more thorough and the resulting waste particles finer, thus preventing the blockage of sewers.

[0056] Different sets of grinding devices grind food waste into different volumes, allowing for more thorough grinding. For example, food waste must be ground to a specific size in each set of grinding devices before flowing into the next set for further grinding. To ensure more thorough grinding of food waste, in this embodiment of the invention, the channels through which waste particles flow from each set of grinding devices to the next set gradually narrow. The specific structure of the grinding device will be described below using an example of two sets of grinding devices in grinding chamber 2.

[0057] In an embodiment of the present invention, the garbage disposer includes a first grinding device 3 and a second grinding device 4, wherein the first grinding device 3 is located above the second grinding device 4 and is used for preliminary treatment of garbage, and the second grinding device 4 is directly or indirectly connected to the first grinding device 3 and is used to further treat the pre-treated garbage in conjunction with the first grinding device 3.

[0058] Specifically, such as Figures 3 to 6 As shown, the first grinding device 3 includes a first grinding disc 31 and a first grinding ring 32, which are rotatably arranged relative to each other. The second grinding device 4 includes a second grinding disc 41 and a second grinding ring 42, which are rotatably arranged relative to each other. The first grinding disc 31 and the second grinding ring 42 are connected. The drive shaft 51 of the motor 5 passes through the first grinding disc 31 and the second grinding disc 41. The first grinding disc 31 is mounted on the drive shaft 51, and the second grinding ring 42 is connected to the first grinding disc 31. The drive shaft 51 drives the first grinding disc 31 and the second grinding ring 42 to rotate together. An opening 317 is provided on the outer periphery of the first grinding disc 31, and a protrusion 422 is provided on the upper end of the second grinding ring 42. The first grinding disc 31 and the second grinding ring 42 are connected by the protrusion 422 engaging with the opening 317, that is, the protrusion 422 passes through the opening 317 to connect the first grinding disc 31 and the second grinding ring 42. In a preferred embodiment, the opening 317 and the protrusion 422 are snap-fitted together. There are four openings 317 and four protrusions 422, and the four openings 317 are symmetrically arranged on the first grinding disc 31 (see reference). Figure 7 and Figure 8 The four protrusions 422 on the second grinding ring 42 correspond one-to-one with the four openings 317. The second grinding ring 42 is connected to the first grinding disc 31, which reduces the connection between the second grinding ring 42 and the motor 5, saves space, and reduces the burden on the motor 5, making the rotation of the second grinding ring 42 and the first grinding disc 31 more stable.

[0059] As an alternative, the second grinding ring 42 can be directly mounted on the drive shaft 51, and the second grinding ring 42 is connected to the first grinding disc 31 through the drive shaft 51.

[0060] A support 6 is provided below the second grinding disc 41 (see reference). Figure 2 The bracket 6 is fixed to the grinding chamber 2, and the second grinding disc 41 is provided with a central through hole 413 (see reference). Figure 6The axis of the central through hole 413 coincides with the central axis of the second grinding disc 41. Two through holes 414 are provided on both sides of the central through hole 413. The drive shaft 51 passes through the central through hole 413, and screws pass through the two through holes 414 to fix the second grinding disc 41 to the bracket 6. Thus, the second grinding disc 41 is positioned below the second grinding ring 42 and indirectly mounted on the inner wall of the grinding chamber 2. A gap is formed between the upper end face of the second grinding disc 41 and the lower end face of the second grinding ring 42. The second grinding disc 41 can also be fixed to the bracket 6 by other means, such as bolts. The outer peripheral edge of the second grinding disc 41 is in contact with or forms a gap with the inner wall of the grinding chamber 2. The preferred option is to form a gap, which not only reduces the friction between the second grinding disc 41 and the grinding chamber 2, thereby reducing noise, but also allows qualified waste particles to pass through, increasing the channel for waste particles to be discharged outward, which helps to discharge waste particles and avoids blockage.

[0061] The first grinding ring 32 is installed on the inner wall of the grinding chamber 2, and a gap is formed between the inner wall of the first grinding ring 32 and the outer peripheral edge of the first grinding disk 31. The lower end face of the first grinding ring 32 may be higher or lower than the upper end face of the first grinding disk 31. The preferred option is that it is lower than the upper end face of the first grinding disk 31. This can prevent excessively large waste particles from flowing out through the gap formed by the first grinding ring 32, the outer periphery of the first grinding disk 31, and the upper end face of the first grinding disk 31.

[0062] The first grinding ring 32 and the second grinding disc 41 are directly or indirectly installed in the grinding chamber 2 and are non-rotatable, which reduces the burden on the motor 5, makes the motor 5 and the grinding device operate more stably, and reduces noise.

[0063] A further implementation scheme involves the outer diameter of the second grinding ring 42 being less than or equal to the diameter of the first grinding disc 31, while the diameter of the second grinding disc 41 is greater than that of the first grinding disc 31. This creates an annular cavity formed by the second grinding ring 42, the second grinding disc 41, and the grinding chamber 2. Waste particles flowing into the second grinding device 4 through the gap between the inner wall of the first grinding ring 32 and the outer edge of the first grinding disc 31 enter this annular cavity. Under the combined action of the second grinding ring 42 and the grinding chamber 2, the waste particles are ground into smaller particles and finally flow out through the gap between the grinding chamber 2 and the outer edge of the second grinding disc 41 into the sewer. With this configuration, the outer diameter of the first grinding ring 32 is greater than the diameter of the second grinding disc 41, allowing for the flow of waste particles through the gap between the grinding chamber 2 and the outer edge of the second grinding disc 41. This configuration increases the grinding space, reduces the grinding pressure between the inner wall of the second grinding ring 42 and the second grinding disc 41, and accelerates the grinding speed of the second grinding device 4.

[0064] The gap between the upper end face of the second grinding disc 41 and the lower end face of the second grinding ring 42 is wider than the width of the channel in the second grinding device 4 through which garbage particles flow to the next set of grinding devices or the sewer. Through this gap, the garbage particles in the second grinding ring 42 can flow into or be thrown into the annular cavity for grinding, further reducing the grinding pressure between the inner wall of the second grinding ring 42 and the second grinding disc 41, and accelerating the grinding speed of the second grinding device 4.

[0065] The first grinding device 3 performs preliminary grinding of food waste, forming relatively large waste particles that can flow out of the working area of ​​the first grinding device 3. These waste particles flow into the second grinding device 4, where they are further ground to form finer waste particles that can also flow out of the working area of ​​the second grinding device 4. The finer waste particles flow out of the working area of ​​the second grinding device 4 and are discharged into the sewer. Both the first grinding device 3 and the second grinding device 4 have channels for waste particles to flow to the next set of grinding devices. The first grinding disc 31 has several first through holes for waste particles to pass through, and the second grinding disc 41 has several second through holes for waste particles to pass through. The diameter of the second through holes is smaller than that of the first through holes. The several first through holes on the first grinding disc 31 are drainage holes, and the several second through holes on the second grinding disc 41 are drainage holes. The drainage holes on the first grinding disc 31 are wider than those on the second grinding disc 41.

[0066] The channel for the first grinding device 3 to allow waste particles to flow to the next set of grinding devices also includes an upper grinding hole 321 provided on the first grinding ring 32 and a gap formed between the inner wall of the first grinding ring 32 and the outer peripheral edge of the first grinding disk 31. The channel for the second grinding device 4 to allow waste particles to flow to the next set of grinding devices or the sewer also includes a lower grinding hole 421 provided on the second grinding ring 42 and a gap formed between the outer peripheral edge of the second grinding disk 41 and the inner wall of the grinding chamber 2. The upper grinding hole 321 of the first grinding ring 32 is wider than the lower grinding hole 421 of the second grinding ring 42. The gap formed between the inner wall of the first grinding ring 32 and the outer peripheral edge of the first grinding disk 31 is wider than the gap formed between the outer peripheral edge of the second grinding disk 41 and the inner wall of the grinding chamber 2. In an embodiment of the present invention, the width of the channel for the first grinding device 3 to allow waste particles to flow to the next set of grinding devices is 4-5 mm, and the width of the channel for the second grinding device 4 to allow waste particles to flow to the next set of grinding devices or the sewer is 2-3 mm. Preferably, the channel for the first grinding device 3 to allow waste particles to flow to the next set of grinding devices is 5 mm, and the channel for the second grinding device 4 to allow waste particles to flow to the next set of grinding devices or the sewer is 2 mm. That is, the gaps formed by the drainage hole of the first grinding disc 31, the upper grinding hole 321 on the first grinding ring 32, the inner wall of the first grinding ring 32, and the outer peripheral edge of the first grinding disc 31 are all 5 mm; the gaps formed by the drainage hole of the second grinding disc 41, the lower grinding hole 421 on the second grinding ring 42, the outer peripheral edge of the second grinding disc 41, and the inner wall of the grinding chamber 2 are all 2 mm. By strictly limiting the size of the channel for each layer of waste particles to flow to the next set of grinding devices, food waste is thoroughly ground, ultimately forming finer waste particles, preventing sewer blockage.

[0067] Both the first grinding disc 31 and the second grinding disc 41 are provided with a number of grinding elements for grinding waste; at least the grinding elements of the first grinding disc 31 include two grinding hammers and two protrusions, and the grinding hammers and protrusions are arranged alternately in the circumferential direction; the two grinding hammers are arranged in a centrally symmetrical manner and / or the two protrusions are arranged in a centrally symmetrical manner.

[0068] Specifically, a first grinding hammer 311, a second grinding hammer 312, a first protrusion 313, and a second protrusion 314 are provided on the first grinding disc 31, and a third grinding hammer 411 and a fourth grinding hammer 412 are symmetrically provided on the second grinding disc 41. The first grinding hammer 311 and the second grinding hammer 312 are rotatably mounted on the first grinding disc 31, and the first protrusion 313 and the second protrusion 314 are fixed to the first grinding disc 31. The first grinding hammer 311 and the second grinding hammer 312 are symmetrically arranged along the center of the first grinding disk 31. The first convex 313 and the second convex 314 are also symmetrically arranged along the center of the first grinding disk 31. The first grinding hammer 311 is adjacent to the first convex 313, and the first grinding hammer 311 is relatively close to the first convex 313 and relatively far from the second convex 314. The first grinding hammer 311, the second grinding hammer 312, the first convex 313 and the second convex 314 are not located at four positions that can divide the first grinding disk 31 into four equal parts. That is, the total area occupied by the adjacent first grinding hammer 311 and the first convex 313 on the upper surface of the first grinding disk 31 is less than one-quarter of the area of ​​the upper surface of the first grinding disk 31. The same is true for the second grinding hammer 312 and the second convex 314. The first grinding hammer 311 and the first convex 313 are relatively close to each other, and the two work together to repeatedly hammer the food waste. At the same time, since the first grinding hammer 311 and the second grinding hammer 312 can rotate freely, they will avoid hard objects when they encounter them. At this time, the first convex 313 and the second convex 314, which are close to the first grinding hammer 311 and the second grinding hammer 312 respectively, can hammer the hard objects, thereby improving the grinding efficiency of the first grinding device 3 on food waste.

[0069] The first convex bulge 313 consists of a central bulge and three peripheral bulges surrounding the central bulge. The three peripheral bulges are connected to the central bulge, and the bottom surfaces of both the central bulge and the three peripheral bulges are connected to the upper surface of the first grinding disc 31. The highest point of each of the three peripheral bulges is lower than the highest point of the central bulge, and the highest points of the three peripheral bulges are located at their points of contact with the central bulge. The surfaces of both the central bulge and the three peripheral bulges are curved; visually, they appear to be part of a sphere. Compared to a single convex bulge, this design of the first convex bulge 313 increases the impact area with food waste, enabling more effective impact. The second convex bulge 314 has the same design as the first convex bulge 313.

[0070] Two sets of drainage holes are provided on the first grinding disc 31. Each set of drainage holes corresponds to each grinding hammer. Each set of drainage holes and each convex bulge are respectively set on both sides of the grinding hammer along the circumferential direction.

[0071] Specifically, the first grinding disc 31 is provided with a first set of drainage holes 315 and a second set of drainage holes 316. The first set of drainage holes 315 is located near the side of the first grinding hammer 311 away from the first protrusion 313, and the second set of drainage holes 316 is located near the side of the second grinding hammer 312 away from the second protrusion 314. Each set of drainage holes contains 6-8 holes. This arrangement allows qualified waste particles, after being crushed by the grinding hammer and the protrusion, to quickly flow from the drainage holes onto the second grinding device 4.

[0072] like Figure 6 As shown, multiple rows of drainage holes are evenly arranged on the second grinding disc 41, with each row of drainage holes arranged radially around the central through hole 413.

[0073] Food waste enters the first grinding device 3 through the water storage tank 1. After the combined action of the grinding hammer, convex bulge, first grinding ring 32 and first grinding disc 31 on the first grinding device 3, the food waste is turned into 4-5mm waste particles. These particles enter the grinding operation area of ​​the second grinding device 4 through the water leakage hole on the first grinding disc 31, the upper grinding hole 321 on the first grinding ring 32 and the gap between the first grinding disc 31 and the first grinding ring 32. After the combined action of the grinding hammer, second grinding ring 42 and second grinding disc 41 on the second grinding device 4, the waste particles are ground into smaller 2-3mm particles. Finally, they flow out through the water leakage hole on the second grinding disc 41 and the gap between the second grinding disc 41 and the grinding chamber 2 and are discharged into the sewer. If food waste particles are larger than 5mm, they will continue to be ground in the grinding operation area of ​​the first grinding device 3 until they are ground into waste particles smaller than or equal to 5mm before entering the grinding operation area of ​​the second grinding device 4. Similarly, the waste particles flowing into the second grinding device 4 must be ground into waste particles smaller than or equal to 2mm before they can flow out of the second grinding device 4 and be discharged into the sewer.

[0074] In an embodiment of the present invention, a third grinding device may be provided below the second grinding device 4. The third grinding device includes a third grinding disc and a third grinding ring that cooperate to grind the waste. The third grinding disc is fixed on the drive shaft 51, and the third grinding ring is fixed on the inner wall of the grinding chamber 2. The third grinding disc is provided with a grinding hammer and a water leakage hole. Preferably, this structure can connect the second grinding disc 41 and the third grinding ring of the second grinding device 4 together and fix them on the inner wall of the grinding chamber 2.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A garbage disposal unit, comprising a grinding chamber, at least two sets of grinding devices disposed within the grinding chamber, and a drive shaft connected to the grinding devices, characterized in that: Each group of grinding devices is arranged sequentially along the axial direction of the drive shaft, and at least two adjacent groups of grinding devices are partially connected. It includes a first grinding device and a second grinding device, wherein, The first grinding device is located above the second grinding device and is used for preliminary treatment of waste. The second grinding device is directly or indirectly connected to the first grinding device and is used to further process the pre-treated waste in conjunction with the first grinding device. The first grinding device includes a first grinding disc and a first grinding ring, wherein the first grinding disc and the first grinding ring are rotatably arranged relative to each other; The second grinding device includes a second grinding disc and a second grinding ring, with the second grinding disc and the second grinding ring rotatably arranged relative to each other; the first grinding disc and the second grinding ring are connected.

2. A garbage disposal unit according to claim 1, characterized in that: The grinding discs and grinding rings connected in the two sets of adjacent grinding devices are mounted on the drive shaft, and the grinding rings and grinding discs corresponding one-to-one with the connected grinding discs and grinding rings are mounted on the inner wall of the grinding chamber.

3. A garbage disposal unit according to claim 1, characterized in that: The channels through which waste particles flow from each grinding unit to the next grinding unit gradually narrow.

4. A garbage disposal unit according to any one of claims 1-3, characterized in that: The first grinding disc is mounted on the drive shaft, and the second grinding ring is connected to the first grinding disc. The drive shaft drives the first grinding disc and the second grinding ring to rotate together.

5. A garbage disposal unit according to claim 4, characterized in that: The second grinding disc is disposed below the second grinding ring and installed on the inner wall of the grinding chamber, with a gap formed between the upper end face of the second grinding disc and the lower end face of the second grinding ring.

6. A garbage disposal unit according to claim 5, characterized in that: The outer peripheral edge of the second grinding disc forms a gap with the inner wall of the grinding cavity.

7. A garbage disposal unit according to claim 4, characterized in that: The first grinding ring is mounted on the inner wall of the grinding chamber, and a gap is formed between the inner wall of the first grinding ring and the outer peripheral edge of the first grinding disc.

8. A garbage disposal unit according to claim 4, characterized in that: The gap formed between the upper end face of the second grinding disc and the lower end face of the second grinding ring is wider than the gap formed between the outer peripheral edge of the second grinding disc and the inner wall of the grinding cavity.

9. A garbage disposal unit according to claim 4, characterized in that: The gap formed between the inner wall of the first grinding ring and the outer peripheral edge of the first grinding disk is wider than the gap formed between the outer peripheral edge of the second grinding disk and the inner wall of the grinding cavity.

10. A garbage disposal unit according to claim 4, characterized in that: The outer diameter of the second grinding ring is less than or equal to the diameter of the first grinding disc, and the diameter of the second grinding disc is greater than the diameter of the first grinding disc.

11. A garbage disposal unit according to any one of claims 1-3, characterized in that: The first grinding disc is provided with several first through holes for the passage of garbage particles; The second grinding disc is provided with several second through holes for the passage of waste particles; The diameter of the second through hole is smaller than the diameter of the first through hole.

12. A garbage disposal unit according to any one of claims 1-3, characterized in that: Both the first and second grinding discs are equipped with grinding elements for grinding waste.

13. A garbage disposal unit according to claim 12, characterized in that: At least the first grinding disc has two grinding hammers and two protrusions, which are arranged alternately at intervals in the circumferential direction.

14. A garbage disposal unit according to claim 13, characterized in that: The two grinding hammers are arranged symmetrically with respect to the center and / or the two convex bulges are arranged symmetrically with respect to the center.

15. A garbage disposal unit according to claim 13, characterized in that: The total area occupied by the adjacent grinding hammers and protrusions on the upper surface of the first grinding disc is less than one-quarter of the area of ​​the upper surface of the first grinding disc.

16. A garbage disposal unit according to claim 13, characterized in that: The convex hull includes a central convex hull and three peripheral convex hulls surrounding the central convex hull. The three peripheral convex hulls are respectively connected to the central convex hull. The bottom surfaces of the central convex hull and the three peripheral convex hulls are all connected to the upper surface of the first grinding disc. The highest point of each of the three peripheral convex hulls is lower than the highest point of the central convex hull.

17. A garbage disposal unit according to claim 13, characterized in that: The first grinding disc is provided with two sets of drainage holes, each set of drainage holes corresponds to each grinding hammer, and each set of drainage holes and each convex bulge are respectively arranged on both sides of the grinding hammer along the circumferential direction.

18. A garbage disposal unit according to any one of claims 1-3, characterized in that: The first grinding disc has an opening on its outer peripheral edge, and the second grinding ring has a protrusion at its upper end. The first grinding disc and the second grinding ring are connected by the protrusion and the opening.

19. A garbage disposal unit according to claim 18, characterized in that: The opening and protrusion engage.

20. A garbage disposal unit according to claim 18, characterized in that: There are four openings and four protrusions, each corresponding to one other.

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