Grinding device of garbage disposer and garbage disposer

Abstract

The invention relates to a grinding device of a garbage disposer and the garbage disposer. The grinding device comprises a grinding ring located in a grinding cavity of the garbage disposer and a cutter head assembly capable of being driven by a driving motor to rotate relative to the grinding ring; the cutter head assembly comprises a cutter head and a cutter head body which can be rotatably connected to the cutter head around a vertically extending axis, a cutting notch is formed in the end, close to the grinding ring, of the cutter head body, the cutting notch penetrates to the bottom face of the cutter head body, the grinding ring is provided with protruding teeth protruding inwards, and the cutter head body is connected with the cutter head body through the protruding teeth. And in the process that the cutter head body rotates along with the cutter head, the convex teeth of the grinding ring can penetrate through the cutting notches of the cutter head body to form cutting fit with the parts above the cutting notches of the cutter head body. The device has the advantage that garbage materials can be conveniently and rapidly discharged after being cut.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage processors, and in particular to a grinding device and a garbage processor of a garbage processor. Background Art

[0002] A food waste processor is used to crush food residues into small particles so that they can safely pass through a drainage pipe. Traditional food processors include a food delivery section, a motor section, and a grinding system disposed between the food delivery section and the motor section. The grinding system is the core part of the food waste processor. Generally, it includes a rotating cutter head and a fixed grinding ring. The cutter head (i.e., grinding hammer) for cutting food waste is provided on the cutter head, and the cutter head is mounted on the motor shaft and driven by the motor to rotate the cutter head relative to the grinding ring. Generally, grinding holes and cutting teeth are provided on the grinding ring, so as to grind and crush the food waste thrown from the cutter head to the grinding ring again. The Chinese utility model patent "Food Waste Processor" with the patent number ZL201320009262.5 (the authorized announcement number is CN203184086U) and the Chinese invention patent "Grinding Mechanism in Food Waste Processor" with the patent number ZL201210110326.0 (the authorized announcement number is CN102631971B) both disclose the above grinding system.

[0003] For the cutter head assembly of the existing garbage processor, the cutter head basically rotates around a fixed axis parallel to the normal direction of the cutter head in a plane parallel to the cutter head. In order to improve the use efficiency of the cutter head assembly and enhance the cutting and grinding ability of the cutter head assembly for materials, a multi-degree-of-freedom rotation method of the cutter head is also adopted. For example, in "A Cutter Head Assembly of a Food Waste Processor" with the application number CN201921807698.2, the cutter head assembly includes a base and a cutter head. The base is bolted to the cutter head and can rotate around a fixed bolt. The base is clamped with the cutter head, so that the cutter head can rotate 360° in its own plane along with the base and can also rotate within 0-90° around its clamping axis, realizing multi-degree-of-freedom rotation in each plane perpendicular to the surface of the cutter head.

[0004] However, the blade assembly in the above patent application CN201921807698.2 still has certain deficiencies: During the rotation of the cutter head, an important cutting and crushing method of the cutter head on the cutter head is to cooperate with the peripheral grinding ring (usually provided with cutting teeth). The cutter head of this patent application is provided with a notch at the top of the free end to form a stepped structure, and the stepped structure forms a cutting cooperation with the cutting teeth on the grinding ring. However, after the garbage material, especially fiber garbage material, is cut, it is easily driven by the cutter head and stays above the cutter head, that is, it cannot fall to the lower part of the cutter head through the gap between the cutter head and the grinding ring in time to achieve rapid blanking.

[0005] Therefore, the grinding device of the existing garbage processor still needs to be further improved. Summary of the Invention

[0006] The first technical problem to be solved by the present invention is to provide a grinding device for a garbage processor that facilitates the rapid feeding and discharging of garbage materials after being cut, in view of the current situation of the prior art.

[0007] The second technical problem to be solved by the present invention is to provide a garbage processor adopting the above-mentioned grinding device, in view of the current situation of the prior art.

[0008] The technical solution adopted by the present invention to solve the first technical problem is as follows: A grinding device for a garbage processor includes a grinding ring located in the grinding cavity of the garbage processor and a cutter head assembly that can rotate relative to the grinding ring driven by a driving motor. The cutter head assembly includes a cutter head and a cutter head body rotatably connected to the cutter head around an axis extending vertically. One end of the cutter head body adjacent to the grinding ring has a cutting notch that penetrates to the bottom surface of the cutter head body. The grinding ring has inwardly protruding teeth. During the rotation of the cutter head body with the cutter head, the teeth of the grinding ring can pass through the cutting notch of the cutter head body and form a cutting cooperation with the part above the cutting notch of the cutter head body.

[0009] As an improvement, the cutter head body includes a connecting member and a cutter head main body. The connecting member is rotatably connected to the cutter head through a first pin shaft extending vertically, and the cutter head main body is rotatably connected to the connecting member in a manner that can deflect up and down relative to the connecting member. During the rotation of the cutter head main body with the cutter head, when encountering hard objects or material accumulation, it can deflect upward, adaptively avoid, buffer the impact force, and protect the driving mechanism. On the other hand, the deflection structure absorbs the impact energy and reduces the abnormal vibration of the machine.

[0010] As an improvement, the cutter head main body has at least two arranged side by side, and each of the cutter head main bodies of the same cutter head body is rotatably connected to the same connecting piece, and can independently deflect up and down relative to the connecting piece. Multiple cutter head main bodies (at least two) share a connecting piece, and are uniformly rotatably installed on the cutter disc through the first pin shaft on the connecting piece. Compared with the traditional mode of "one cutter head with one independent connecting base" in the prior art, the number of independent installation bases (connecting pieces) required on the cutter disc is greatly reduced, and the precious cutter disc installation surface space is significantly saved. On the other hand, thanks to the optimization of the above-mentioned space occupancy, when the cutter disc area remains unchanged or is limited, more cutter head bodies can be deployed than the traditional single-cutter head single-base solution, and the entire cutter disc assembly has more intensive cutting, impact and grinding points. On this basis, the independent multi-degree-of-freedom movement ability of each cutter head main body is superimposed, so that the impact, cutting and grinding effects on the material per unit time are greatly improved in frequency, intensity and coverage, and the cutter disc assembly achieves the maximum crushing capacity in a limited space. Furthermore, although each cutter head body in the present invention is connected to the same connecting piece, it can independently deflect up and down relative to the connecting piece, so it also has stronger material adaptability and more efficient crushing ability (such as pulling fiber materials, avoiding and impacting hard objects).

[0011] In order to realize the rotational connection between the cutter disc, the connecting part and the cutter head body, the connecting part includes a horizontally extending connecting plate and a U-shaped plate connected to the end of the connecting plate, the U-shaped plate includes two vertical plates extending vertically and arranged side by side, and a horizontally extending second pin shaft is provided between the two opposite vertical plates of the U-shaped plate, and each of the cutter head bodies of the same cutter head body is rotatably connected to the second pin shaft.

[0012] In order to further improve the cutting and crushing effect, at least two adjacent cutter heads in each cutter head body of the same cutter head body have different top heights. The cutter head body with a height difference at the top allows the cutter head body to have more crushing positions contacting the garbage, achieving staggered cutting, and the stepped cutter head combination formed can also disrupt the fiber winding path and reduce the blockage problem.

[0013] As an improvement, the cutter head body has a connection end for connecting to the connecting member and a free end away from the connecting member. The connection ends of the cutter head bodies of the same cutter head body are all located in the U-shaped plate and connected to the second pin. Part of the cutter head body (connection end) is built into the U-shaped plate, which can limit the lateral shaking of the cutter head body and improve cutting stability. All cutter head bodies share the same pin, reducing the number of parts and assembly complexity.

[0014] The above "the top heights of two adjacent cutter head bodies are different" may mean that the heights of the top surfaces of the two cutter head bodies are different at any radial position, or only different in some regional positions. In a preferred solution, there is a height difference between the highest regional positions of the top surfaces of two adjacent cutter head bodies among the cutter head bodies of the same cutter head body. Considering that the structural design of "the heights of the top surfaces of two cutter head bodies are different at any radial position" may lead to an excessive instantaneous load on the drive motor and a sharp increase in motor power consumption, for this reason, a corresponding height difference can be formed only at the top position of the outer edge of the cutter head body, and the rest of the top surface is basically flush to form a continuous cutting surface.

[0015] Considering that it is difficult to simultaneously process garbage with significantly different sizes (such as small fruit cores and large vegetable leaves) by setting a single-height cutting tooth at the free ends of two adjacent cutter head bodies, for this reason, the free ends of the cutter head bodies have cutting protrusions extending radially outward along the cutter disc, and the area of the free ends of the cutter head bodies located below the cutting protrusions is the cutting notch of the cutter head body. At least two adjacent cutter head bodies among the cutter head bodies of the same cutter head body have the cutting protrusions arranged in a staggered manner in the vertical direction.

[0016] As an improvement, there is a height difference between the tops of the cutting protrusions of two adjacent cutter head bodies among the cutter head bodies of the same cutter head body. The cutting protrusions with different heights can respectively target garbage of different sizes and realize simultaneous coarse crushing and fine crushing.

[0017] As an improvement, the rotational connection structure between the cutter head body and the connecting member is configured such that: during the process of the cutter head body deflecting upward relative to the connecting member from the initial state, the cutter head body moves toward the center of the cutter disc relative to the connecting member; and during the process of the cutter head body deflecting downward relative to the connecting member and returning to the initial state, the cutter head body moves away from the center of the cutter disc relative to the connecting member. When the cutter head body deflects downward (into the grinding area), its rotation axis will actively move away from the center of the cutter disc, which enables the cutter head body to extend more fully into the area near the grinding ring. Even if its installation position is relatively inward (to avoid upward deflection interference), it can still form a tight and effective crushing fit gap with the cutting teeth on the grinding ring. The path of the cutter head body being thrown toward the grinding ring under the action of rotational centrifugal force is more direct, and the impact force is greater, significantly enhancing the cutting, grinding, and crushing effects on waste materials (especially fibrous ones). When impacted by large or hard waste, the cutter head body can deflect upward for buffering and avoidance. At this time, its rotation axis will move toward the center of the cutter disc. This self-adaptive dynamic inward retraction structure design ensures that within the maximum deflection angle range of the cutter head body upward, its outer edge trajectory is always within the safe area, and it will not have a hard collision with the cutting teeth of the fixed peripheral grinding ring or be jammed due to material blockage, greatly reducing the possibility of machine jamming and improving the operating reliability. The dynamic axis offset design between the cutter head body and the connecting member realizes the intelligent optimization of the working position (downward) and the avoidance position (upward) of the cutter head body. When the cutter disc rotates, the cutter head body can automatically adjust its effective working radius and posture according to the force condition. While maximizing the utilization of the space in the crushing area of the grinding ring, it also perfectly avoids the interference risk, making the overall grinding efficiency of the cutter disc assembly high and the operation smooth.

[0018] In order to simplify the rotational connection structure between the cutter head body and the connecting piece, the second pin shaft is fixed relative to the connecting piece. An installation shaft hole for the second pin shaft to pass through is formed in the connecting end of the cutter head body. The installation shaft hole is an oval hole extending from the connecting end of the cutter head body towards the side where its free end is located. On the inner side wall of the installation shaft hole, on the side adjacent to the connecting end of the cutter head body, there is an arc-shaped rib protruding towards the free end of the cutter head body. On the outer peripheral wall of the second pin shaft, on the side facing the center position of the cutter head, there is an arc-shaped groove for the arc-shaped rib to be embedded therein. During the process of the cutter head body deflecting upwards relative to the connecting piece, the arc-shaped rib gradually disengages from the arc-shaped groove, thereby driving the cutter head body to move towards the center of the cutter head relative to the connecting piece as a whole. The arc-shaped groove of the second pin shaft and the arc-shaped rib of the cutter head body together constitute the rotational connection structure between the cutter head body and the connecting piece. The cooperation between the oval hole and the second pin shaft (arc-shaped rib / arc-shaped groove) forms a cam effect. When the cutter head body deflects upwards, the arc-shaped rib disengages from the arc-shaped groove, pushing the rotation center of the cutter head body to slide towards the center. When the cutter head body deflects downwards, the arc-shaped rib can be embedded in the arc-shaped groove again, and the cutter head resets and moves outwards, approaching the grinding ring as low as possible to improve the cutting efficiency. Using the geometric cooperation design between the oval hole and the second pin shaft to replace the complex transmission mechanism greatly reduces the failure rate.

[0019] If the second pin shaft rotates by itself, it will cause the arc-shaped rib and the arc-shaped groove to be misaligned, losing the motion control function. In order to fix the second pin shaft relative to the connecting piece, connection holes are formed on both vertical plates of the U-shaped plate. On the inner peripheral wall of the connection hole, there are positioning ribs, and the positioning ribs can be stuck into the arc-shaped groove of the second pin shaft, thereby restricting the second pin shaft from rotating around its own axis. After the positioning ribs on the U-shaped plate are stuck into the arc-shaped groove of the second pin shaft, the circumferential rotation of the second pin shaft can be restricted, ensuring the reliability of the fixation between the second pin shaft and the connecting plate.

[0020] In order to further achieve the cooperation between the cutter head body and the cutter head to improve the cutting effect, the lower part of the grinding ring has comb-shaped teeth extending vertically and arranged circumferentially in sequence.

[0021] As an improvement, a cutting groove is formed between two adjacent comb-shaped teeth on the grinding ring. One of the two side edges of the cutting groove extends vertically, and the other side edge extends obliquely downwards against the rotation direction of the cutter head from top to bottom. This design of the cutting groove can accelerate the discharge speed of the garbage material when dealing with garbage, and can reduce the probability of garbage getting stuck in the cutting groove of the grinding ring when dealing with hard garbage.

[0022] As an improvement, it further includes:

[0023] A cutting disc is located below the cutter disc and can rotate together with the cutter disc. The outer peripheral edge of the cutting disc is provided with first cutting teeth;

[0024] A cutting ring assembly is located in the grinding cavity and is fixed relative to the grinding cavity. The cutting ring assembly includes a cutting ring located outside the cutting disc. The inner peripheral wall of the cutting ring is provided with second cutting teeth extending radially inward. During the rotation of the cutting disc with the cutter disc, the first cutting teeth and the second cutting teeth form a cutting cooperation. By adding a fixed cutting ring with second cutting teeth outside the cutting disc, when the cutting disc rotates at a high speed, the first cutting teeth on its outer periphery and the second cutting teeth on the inner wall of the cutting ring can form an effective cutting cooperation, generating multi-directional shear forces, which can effectively cut off the fibrous waste materials passing downward through the gap between the two, ensuring the cutting effect. On the other hand, the three-dimensional cutting structure formed by the double cutting teeth (the first cutting teeth on the cutting disc and the second cutting teeth on the cutting ring) can significantly extend the residence time of the materials, enabling the materials to be fully cut and crushed, effectively reducing the risk of sewer blockage.

[0025] To ensure the cutting effect, the first cutting teeth and the second cutting teeth partially overlap in the vertical direction and have a gap in the vertical direction. The design of partial overlap and retention of a gap in the vertical direction can not only enhance the cutting synergy but also enable the cut waste materials to fall smoothly. As an improvement, to further optimize the cutting performance, the distance between the first cutting teeth and the adjacent second cutting teeth in the vertical direction is denoted as the first distance, and the value range of the first distance is: 1 mm ≤ first distance ≤ 10 mm.

[0026] As an improvement, the second cutting teeth are triangular teeth extending vertically. The top of the triangular teeth has a cutting inclined surface sloping downward from outside to inside, and the first cutting teeth are located above the cutting inclined surface of the second cutting teeth. The triangular teeth extend vertically, and an inclined cutting inclined surface is provided at the top, which can effectively cut the falling waste materials and guide the materials to move downward. Each first cutting tooth of the cutting disc is located above the inclined surface, which can form a continuous cutting trajectory and ensure the cutting efficiency.

[0027] In some solutions, there can be one (or group) of the second cutting teeth on both the cutting disc and the cutting ring. However, considering that the processing capacity of the single-layer cutting structure is limited and cannot meet the high-load requirements, in the preferred solution, there are multiple second cutting teeth arranged in sequence along the circumferential direction on the cutting ring. Each of the second cutting teeth arranged in sequence along the circumferential direction of the cutting ring is denoted as a second cutting tooth group. There are at least two cutting discs arranged one above the other, and there are at least two second cutting tooth groups arranged one above the other on the cutting ring. Each second cutting tooth group and each cutting disc are arranged alternately in the vertical direction.

[0028] As an improvement, each of the second cutting teeth and the main body of the cutting ring is an integral part. The integral structure enhances the overall strength, reduces the maintenance cost, and ensures long-term stable operation. For the convenience of machining and improving the cutting effect, the inner peripheral wall of the cutting ring has a convex edge that protrudes radially inward and extends vertically. There are a plurality of the convex edges, and the convex edges are arranged at intervals in sequence along the circumferential direction of the cutting ring. The second cutting teeth are formed on the inner side edges of the convex edges.

[0029] To achieve stable and reliable installation of the cutting ring, the cutting ring assembly further includes an upper washer and a lower washer stacked one above the other. The inner peripheral wall of the grinding cavity has a first annular installation groove for placing the upper washer and the lower washer therein. A second annular installation groove for placing the cutting ring is provided on the inner peripheral wall of the upper washer or the inner peripheral wall of the lower washer or the inner peripheral walls of both the upper washer and the lower washer. The upper edge and / or the lower edge of the cutting ring has a first positioning notch, and the inner wall of the second annular installation groove has a first positioning block. The first positioning block can be inserted into the first positioning notch to limit the circumferential rotation of the cutting ring relative to the upper washer or the lower washer. Through the cooperation of the upper and lower washers, the corresponding positioning notches and positioning blocks, precise installation and fixation of the cutting ring assembly are achieved, circumferential rotation is prevented, and the safety of the equipment is improved.

[0030] The technical solution adopted by the present invention to solve the second technical problem is as follows: A garbage processor includes a housing and a grinding device provided in the housing, and the grinding device of the garbage processor described above is adopted.

[0031] Corresponding to the housing of the garbage disposer, some high-end products adopt a two-color design process, such as two-color injection molding or color separation spraying, to enhance brand recognition. Such processes require multiple molding or spraying operations, resulting in a complex production process and a significant increase in costs. In addition, color separation spraying is prone to problems such as insufficient coating adhesion and difficulty in color difference control. Fading or wear is likely to occur during long-term use, affecting the aesthetics. Two-color injection molding has high requirements for mold accuracy and a long processing cycle, which is not conducive to large-scale production. Therefore, to solve the above technical problems, the housing includes an inner shell and an outer shell sleeved outside the inner shell. The outer shell includes an upper half shell and a lower half shell that are sequentially spaced apart up and down. A clearance gap is reserved between the upper half shell and the lower half shell in the up and down directions. The part of the inner shell that faces the clearance gap inside and outside is visible from the outside through the clearance gap. Since the housing of the garbage disposer adopts a nested structure of the inner and outer shells and a clearance gap is provided between the upper and lower half shells of the outer shell, when a housing with a two-color or multi-color structure is required, only the clearance gap needs to be utilized to make the visible part of the inner shell naturally form a second color band different from the color of the outer shell, that is, without the traditional two-color injection molding or color separation spraying process, directly eliminating multiple molding processes and the investment in supporting molds, and greatly reducing the production cost. Especially when applied to the garbage disposer, since the color difference between the inner and outer shells of the housing is achieved by the color of the material itself rather than the coating, it effectively solves the problems of color difference control and fading hidden dangers in the existing two-color injection molding or color separation spraying methods, thus significantly extending the service life of the product and enhancing the market competitiveness of the product.

[0032] To further facilitate the installation of the upper half shell and the lower half shell, the outer diameter of the peripheral wall of the inner shell gradually increases from the lower part to the upper part. The upper half shell and the lower half shell both move upward relative to the inner shell and are sleeved and installed outside the inner shell. The above structural design enables the upper half shell and the lower half shell to be installed by moving upward from the bottom of the inner shell. During disassembly, they also move downward and are removed from the bottom of the inner shell. The design of the gradually expanding peripheral wall of the inner shell in cooperation with the upward sleeved installation of the housing simplifies the alignment process and improves the assembly efficiency.

[0033] To further simplify the detachable installation structure between the upper half shell, the lower half shell and the inner shell, the inner wall of the upper half shell has a convex buckle protruding inward. The outer wall of the inner shell has an inverted L-shaped limiting chute. The upper half shell and the inner shell are rotationally installed and limited by the above convex buckle sliding in the limiting chute. The part of the inner shell that is connected to the bottom wall is denoted as the lower peripheral wall of the inner shell. The outer diameter dimension of the lower peripheral wall of the inner shell is smaller than the outer diameter dimension of the main body of the inner shell, thus forming a limiting step portion. The peripheral edge of the lower port of the lower half shell has an inwardly extending annular flange. The annular flange abuts below the limiting step portion and is connected by a fastener.

[0034] Advantages of the present invention compared with the prior art: The cutting notch of the cutter head body of the present invention penetrates through to its bottom surface, and the convex teeth of the grinding ring can pass through the notch to form a cutting cooperation with the cutter head body. Since the cutting notch penetrates through the bottom surface to form an open channel, when the convex teeth pass through the notch to cut the material, the crushed garbage particles (including fibrous materials) can directly fall downward through the notch to the lower part of the cutter head, avoiding the material being driven by the cutter head body and staying in the upper part of the cutter head, thus effectively solving the bottleneck problem of poor material feeding in the prior art and significantly reducing the risk of blockage. On the other hand, the cooperation between the convex teeth of the grinding ring and the cutting notch of the cutter head body not only enhances the cutting efficiency, but also promotes the material to be discharged immediately after being broken, shortening the residence time of the material in the grinding cavity, thus effectively improving the overall processing efficiency. Especially for easily entangled fibrous garbage, this design can effectively prevent accumulation, ensure fast and continuous material feeding, and reduce the jamming problem of the grinding device of the garbage processor caused by material blockage. Brief Description of the Drawings

[0035] Figure 1 It is a vertical sectional perspective view of the garbage processor according to an embodiment of the present invention, omitting the housing outside the grinding cavity of the garbage processor;

[0036] Figure 2 It is a three-dimensional structural schematic diagram of the cutter head assembly according to an embodiment of the present invention, with the cutter head body in the initial state;

[0037] Figure 3 It is an exploded view of the cutter head assembly according to an embodiment of the present invention;

[0038] Figure 4 It is a front view of the cutter head assembly according to an embodiment of the present invention;

[0039] Figure 5 It is a three-dimensional structural schematic diagram of the cutter head assembly according to an embodiment of the present invention, with the cutter head body in a state of being deflected upward by a certain angle;

[0040] Figure 6 It is an axial sectional view of the cutter head assembly according to an embodiment of the present invention, with the cutter head body in the initial state;

[0041] Figure 7 It is an axial sectional view of the cutter head assembly according to an embodiment of the present invention, with the cutter head body in a state of being deflected upward by a certain angle;

[0042] Figure 8 It is a three-dimensional structural schematic diagram of the cutter head assembly according to another embodiment of the present invention, with some of the first cutting teeth of the cutting disc at the top inclined downward;

[0043] Figure 9 It is Figure 1 The enlarged view at A in

[0044] Figure 10A partial cross-sectional view of the grinding device of the garbage processor according to an embodiment of the present invention, with the cutting plane passing through the axis of the driving motor;

[0045] Figure 11 A schematic three-dimensional structure diagram of the grinding device of the garbage processor according to an embodiment of the present invention after removing the upper cavity;

[0046] Figure 12 Is Figure 11 A schematic three-dimensional structure diagram after removing the cutter head assembly;

[0047] Figure 13 Is Figure 12 An exploded view of the part shown in;

[0048] Figure 14 A schematic three-dimensional structure diagram of the cutting ring according to an embodiment of the present invention;

[0049] Figure 15 A schematic three-dimensional structure diagram of the upper gasket according to an embodiment of the present invention.

[0050] Figure 16 A schematic three-dimensional structure diagram of the housing of the garbage processor according to an embodiment of the present invention;

[0051] Figure 17 A schematic three-dimensional structure diagram of the housing of the garbage processor according to an embodiment of the present invention from another angle;

[0052] Figure 18 An exploded view of the housing of the garbage processor according to an embodiment of the present invention;

[0053] Figure 19 An exploded view of the inner housing according to an embodiment of the present invention;

[0054] Figure 20 A schematic three-dimensional structure diagram of the upper half shell according to an embodiment of the present invention;

[0055] Figure 21 A schematic three-dimensional structure diagram of the lower half shell according to an embodiment of the present invention;

[0056] Figure 22 A schematic three-dimensional structure diagram of the mounting plug according to an embodiment of the present invention. Detailed implementation manners

[0057] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0058] In the description and claims of the present invention, terms indicating directions such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc. are used to describe various exemplary structural parts and elements of the present invention. However, these terms are used only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions should be regarded as illustrative rather than restrictive. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity.

[0059] Figures 1 - 22 FIG. shows a grinding device of a garbage processor and a preferred embodiment of the garbage processor of the present invention. The garbage processor includes a housing, a grinding cavity 10, and a grinding device. The grinding cavity 10 is located inside the housing. The grinding device includes a drive motor 3, a grinding ring 26, a cutter head assembly 2, a cutting disc assembly, and a cutting ring assembly. The grinding cavity 10 includes an upper cavity 11 and a lower cavity 12 that are buckled up and down. The bottom of the upper cavity 11 is open, and the top of the lower cavity 12 is open. The drive motor 3 is disposed below the lower cavity 12. The output shaft of the drive motor 3 passes through the bottom wall of the lower cavity 12 and extends into the interior of the grinding cavity 10, and is connected to the above-mentioned cutter head assembly 2 to drive the cutter head assembly 2 to rotate. The cutter head assembly 2 includes a cutter head 20 and a cutter head body disposed on the top of the cutter head 20, and is used for crushing garbage materials. A cutting disc assembly is coaxially fixed below the cutter head 20, and the cutting disc assembly can rotate together with the cutter head 20. The cutting disc assembly may be provided with one cutting disc 21, or at least two cutting discs 21 spaced apart in the up and down directions. A plurality of first cutting teeth 211 are evenly distributed on the outer periphery of the cutting disc 21. The first cutting teeth 211 may be triangular saw teeth, which are substantially in the same plane as the main body of the cutting disc 21. Of course, they may also be inclined upward or downward relative to the main body of the cutting disc 21. The cutting disc assembly of this embodiment shows three cutting discs 21 spaced apart up and down. As Figure 8 shown, some of the first cutting teeth 211 on the uppermost cutting disc 21 are inclined downward. The first cutting teeth 211 of the above-mentioned cutting disc 21 can effectively cut off the fibrous garbage materials passing downward through the periphery of the cutter head 20, ensuring the cutting effect.

[0060] See Figure 1 and Figure 7 , the grinding ring 26 covers the outside of the cutter head assembly 2. Specifically, the bottom edge of the grinding ring 26 is substantially at the same height position as the cutter head 20, that is, the grinding ring 26 extends upward a relatively long distance relative to the top surface of the cutter head 20 as a whole, so as to be able to return the garbage materials hit and driven by the cutter head assembly 2 back to the top of the cutter head 20. The outer peripheral wall of the cutter head 20 is substantially in contact with the inner peripheral wall of the grinding cavity 10, thus ensuring the firm fixation of the grinding ring 26.

[0061] The lower part of the grinding ring 26 has comb-shaped teeth 261 that extend vertically and are arranged circumferentially in sequence. A cutting groove 262 is formed between two adjacent comb-shaped teeth 261 on the grinding ring 26. Among them, one side edge of the two side edges of the cutting groove 262 extends vertically, and the other side edge extends obliquely downward along a direction opposite to the rotation direction of the cutter head 20. In a preferred embodiment, along the rotation direction of the cutter head 20, the front side edge of the cutting groove 262 extends vertically, and the rear side edge extends obliquely downward against the rotation direction of the cutter head 20, forming an angle of about 94° with the horizontal direction. This design of the cutting groove 262 can accelerate the discharging speed of the garbage material when dealing with garbage. When dealing with hard garbage, the probability of garbage getting stuck in the cutting groove 262 of the grinding ring 26 can be reduced. The lower part of the grinding ring 26 also has inwardly protruding convex teeth 260. There are multiple convex teeth 260 arranged at intervals along the circumference of the grinding ring 26. Five convex teeth 260 are shown in this embodiment.

[0062] See Figures 2 - 5 , the cutter head body includes a disc-shaped cutter head 20 and at least two groups of cutter head bodies (in this embodiment, two groups of symmetrically arranged cutter head bodies are taken as an example) provided on its top. The cutter head 20 is driven by a driving motor 3 to rotate. The outer peripheral edge thereof is provided with flanging teeth 201 that extend obliquely upward and cutting notches 202 that are recessed radially inward. The flanging teeth 201 and the cutting notches 202 can achieve cutting cooperation with the comb-shaped teeth 261 and the convex teeth 260 on the peripheral grinding ring 26. A plurality of discharging holes 203 and discharging pressure holes 204 are formed on the surface of the cutter head 20. Among them, the number and opening size of the discharging holes 203 and the discharging pressure holes 204 can be reasonably selected according to the actual volume and processing capacity of the grinding cavity 10.

[0063] The cutter head body includes a connecting member 23 and a cutter head main body 24. The connecting member 23 includes a horizontally arranged connecting plate 231 and a U-shaped plate 232 that is inverted sideways. The U-shaped plate 232 includes two vertical plates that are spaced a certain distance in the horizontal direction. The first pin shaft 251 penetrates the connecting plate 231 vertically and is connected to the cutter head 20. Thus, the cutter head body can rotate with the first pin shaft 251 as the rotation center line. A second pin shaft 252 is provided between the two vertical plates of the U-shaped plate 232. The two end portions of the second pin shaft 252 are fixed relative to the vertical plates, that is, it cannot rotate around its own axis. Specifically, the vertical plates are provided with connecting holes 2320 for the two end portions of the second pin shaft 252 to pass through. The inner wall of the connecting hole 2320 is provided with radially inwardly protruding positioning ribs 2321. An arc-shaped groove 2520 is provided at the corresponding position on the outer peripheral wall of the second pin shaft 252. The shape of the arc-shaped groove 2520 is adapted to the positioning ribs 2321. When the second pin shaft 252 is axially inserted into the connecting hole 2320 of the U-shaped plate 232, the positioning ribs 2321 are engaged with the arc-shaped groove 2520, and the second pin shaft 252 can be locked from rotating by itself.

[0064] The cutter head body 24 has a connection end 241 for connecting with the connecting member 23 and a free end 242 far away from the connecting member 23. It can also be understood that the free end 242 of the cutter head body 24 is closer to the grinding ring 26 relative to the connection end 241. The connection ends 241 of the cutter head body 24 are all located within the U-shaped plate 232 and are connected to the second pin shaft 252. In some embodiments, an installation shaft hole 243 for the second pin shaft 252 to pass through is formed on the connection end 241 of the cutter head body 24. The installation shaft hole 243 is an oblong hole extending from the connection end 241 of the cutter head body 24 towards the side where its free end 242 is located. On the inner side wall of the installation shaft hole 243, on the side adjacent to the connection end 241 of the cutter head body 24, there is an arc-shaped rib 2430 protruding towards the free end 242 of the cutter head body 24. The arc-shaped rib 2430 can be embedded into the arc-shaped groove 2520 of the second pin shaft 252. During the process of the cutter head body 24 deflecting upwards relative to the connecting member 23 from the initial state, the arc-shaped rib 2430 of the cutter head body 24 gradually disengages from the arc-shaped groove 2520, thereby driving the cutter head body 24 to move towards the center of the cutter disc 20 as a whole relative to the connecting member 23 (see the M direction shown in Figure 7 Figure). The arc-shaped groove 2520 of the second pin shaft 252 and the arc-shaped rib 2430 of the cutter head body 24 together constitute the rotational connection structure between the cutter head body 24 and the connecting member 23 in this embodiment. By adopting the cooperation between the oblong hole and the second pin shaft 252 (arc-shaped rib 2430 / arc-shaped groove 2520) to form a cam effect, when the cutter head body 24 deflects upwards from the initial state, the arc-shaped rib 2430 disengages from the arc-shaped groove 2520, pushing the rotation center of the cutter head body 24 to slide towards the center. During the process of the cutter head body 24 deflecting downwards to the initial state, the arc-shaped rib 2430 can be embedded into the arc-shaped groove 2520 again, and the cutter head body 24 resets and moves outwards, approaching the grinding ring 26 as low as possible to improve the cutting efficiency. Using the geometric cooperation design between the oblong hole and the second pin shaft 252 to replace the complex transmission mechanism greatly reduces the failure rate.

[0065] The bottom wall of the cutter head body 24 in this embodiment is a plane. Among them, under the action of its own gravity, the bottom wall of the cutter head body 24 is in close contact with the top surface of the cutter disc 20, and this state is the above-mentioned "initial state".

[0066] When the cutter head body 24 of this embodiment deflects downward (into the grinding area), its rotation axis will actively move away from the center of the cutter disc 20, that is, the cutter head body 24 can extend more fully into the area near the grinding ring 26. Even if its installation position is relatively inward (to avoid interference during upward deflection), it can still form a tight and effective crushing fit gap with the convex teeth 260 on the grinding ring 26. The path of the cutter head body 24 being thrown towards the grinding ring 26 under the action of rotational centrifugal force is more direct, with a greater impact force, significantly enhancing the cutting, grinding, and crushing effects on waste materials (especially fibrous materials). When encountering impacts from large or hard wastes, the cutter head body 24 can deflect upward for buffering and avoidance. At this time, its rotation axis will move towards the center of the cutter disc 20. This adaptive dynamic inward retraction structure design ensures that within the maximum upward deflection angle range of the cutter head body 24, its outer edge trajectory is always within the safe area, without hard collisions with the convex teeth 260 of the peripheral fixed grinding ring 26 or being stuck due to material blockage, greatly reducing the possibility of machine jamming and improving the reliability of operation. The dynamic axis offset design between the cutter head body 24 and the connecting member 23 of the present invention realizes the intelligent optimization of the working position (downward) and avoidance position (upward) of the cutter head body 24. When the cutter disc 20 rotates, the cutter head body 24 can automatically adjust its effective working radius and posture according to the force conditions, maximizing the use of the crushing area space of the grinding ring 26 while perfectly avoiding the interference risk, making the overall grinding efficiency of the cutter disc assembly 2 high and the operation smooth.

[0067] Each set of cutter head bodies can have one cutter head body 24 or at least two cutter head bodies 24. Among them, each cutter head body 24 is connected to the same connecting member 23. As shown in this embodiment, two cutter head bodies 24 are arranged side by side left and right. The connecting ends 241 of the two cutter head bodies 24 are located in the accommodation space of the U-shaped plate 232 of the connecting member 23 and are connected to the same second pin shaft 252. The structure of the mounting shaft holes 243 at the connecting ends 241 of the two cutter head bodies 24 is basically the same, and both can achieve radial offset during the up and down deflection process. Each cutter head body 24 can independently deflect up and down in a plane perpendicular to the surface of the cutter disc 20 around the second pin shaft 252 (for example, the deflection angle range is 0 - 90 degrees).

[0068] The movement process of the cutter head body of this embodiment is as follows: The drive motor 3 drives the cutter disc 20 to rotate at high speed. When food waste falls onto the surface of the cutter disc 20, the connecting member 23 swings in the horizontal plane around the first pin shaft 251 under the action of centrifugal force and waste impact; each cutter head body 24 can independently deflect up and down around the second pin shaft 252 under the impact of waste. When encountering hard objects (such as bones), it deflects upward to reduce the impact, and when encountering flexible objects (such as fibers), it deflects downward to enhance the pulling force. Among them, the two side-by-side cutter head bodies 24 move independently, forming dense impact points and cutting lines, significantly improving the initial crushing efficiency of the waste.

[0069] The free ends 242 of the two cutter head bodies 24 of the same cutter head assembly 2 have certain differences. Specifically, the height distribution of the free ends 242 of the cutter head bodies 24 is designed with a dislocation to enhance the crushing gradient and reduce blockage. As Figure 4 shown, for the two side-by-side cutter head bodies 24 in the same set of cutter heads, their overall height (from the top surface of the connection end 241 to the top surface of the free end 242) gradually increases from the inside to the outside along the radial direction of the cutter disc 20. On this basis, there is a certain height difference between the highest points of the top surfaces of the two cutter head bodies 24. Thus, even in the initial state, a stepped crushing structure is formed at the top surfaces of the two cutter head bodies 24.

[0070] One end of the cutter head body in this embodiment adjacent to the grinding ring 26 has a cutting notch 245 that penetrates to the bottom surface of the cutter head body. During the rotation of the cutter head body with the cutter disc 20, the convex teeth 260 of the grinding ring 26 can pass through the cutting notch 245 of the cutter head body and form a cutting fit with the part above the cutting notch 245 of the cutter head body.

[0071] Cutting convex portions 244 (such as trapezoidal or triangular carbide tips) protruding radially outward along the cutter disc 20 are also provided on the free ends 242 of the two cutter head bodies 24. In the same set of cutter heads, the cutting convex portions 244 of the two cutter head bodies 24 are arranged with a dislocation in the up-down direction. Specifically, the heights of the tops of the cutting convex portions 244 of the two cutter head bodies 24 are different, that is, the cutting convex portions 244 of the cutter head bodies 24 also form a corresponding stepped crushing structure at the top positions. When the cutter disc 20 rotates, the cutting convex portions 244 of the cutter head bodies 24 revolve with the cutter disc 20, and the cutting convex portions 244 of the cutter head bodies 24 and the convex teeth 260 and comb-shaped teeth 261 on the grinding ring 26 form an interleaved shearing motion to cut the garbage.

[0072] The area of the free end 242 of the above-mentioned cutter head body 24 located below the cutting convex portion 244 is the cutting notch 245 of the cutter head body in this embodiment.

[0073] In this embodiment, multiple cutter head bodies 24 (at least two) share one connecting member 23 and are uniformly rotatably mounted on the cutter disc 20 through the first pin shaft 251 on the connecting member 23. Compared with the traditional mode of "one cutter head with one independent connecting base" in the prior art, the number of independent mounting bases (connecting members 23) required on the cutter disc 20 is significantly reduced, and the valuable mounting surface space of the cutter disc 20 is remarkably saved. On the other hand, due to the optimization of the above space occupation, more cutter head bodies can be deployed than the traditional single cutter head and single base solution when the area of the cutter disc 20 remains unchanged or is limited, and the entire cutter disc assembly 2 has denser cutting, impact, and grinding points. On this basis, by superimposing the independent multi-degree-of-freedom movement ability of each cutter head body 24, the impact, cutting, and grinding effects on the material per unit time are greatly improved in terms of frequency, intensity, and coverage range, realizing the maximization of the crushing ability of the cutter disc assembly 2 in a limited space. Moreover, although each cutter head body 24 in this embodiment is connected to the same connecting member 23, it can independently deflect up and down relative to the connecting member 23, so it also has stronger material adaptability and more efficient crushing ability (such as pulling on fibrous materials and avoiding and impacting hard objects).

[0074] The grinding device of this embodiment adopts a dynamic axis-offset cutter head (the cutter head body 24 can deflect radially while deflecting up and down), multiple cutter head bodies 24 are independently deflected on a common base (at least two cutter head bodies 24 are arranged side by side), and the through-cut notch 245 and the convex teeth 260 are shearingly matched. The three constitute an overall technical solution with deep coupling and mutual cooperation. Specifically, the structural design of the dynamic axis-offset cutter head and the multiple cutter head bodies 24 on a common base together provide powerful crushing capabilities (the cutter heads are more dense, the effective working radius is wider, and the independent deflection adapts to different properties of materials), and can generate a large amount of crushed materials. On this basis, the design of the through-cut notch 245 provides an efficient discharge channel, enabling the crushed materials (especially fibers) to directly pass downward through the peripheral gap of the cutter disc 20 and avoiding accumulation above the cutter disc 20. Considering the improvement of the crushing ability, more and faster material output will inevitably be generated. If the discharge is blocked, it will instead exacerbate the blockage and cause serious jamming problems. The design of the through-cut notch 245 provides a smooth "nearby and vertically downward" outlet for these rapidly generated crushed materials. The above three points form an efficient closed loop, and the materials can be immediately discharged after being efficiently cut / ground, significantly shortening the residence time of the materials in the upper part of the grinding chamber and completely breaking the vicious cycle of "the higher the crushing efficiency, the easier it is to block materials". Especially for easily entangled fiber materials, the combined effect of the pulling and cutting of multiple cutter heads, the strong impact of the up and down deflection of the cutter heads deep into the grinding area, and the immediate discharge of the through-cut notch 245 produces the ultimate effect of "breaking fibers, preventing entanglement, and preventing blockage". The combined action of the above three points also comprehensively improves and balances the processing ability of the entire grinding device for complex mixed garbage (including hard bones, fruit cores, fibers, soft kitchen waste, etc.). Whether it is hard objects that require strong crushing, fibers that require pulling and cutting, or slurries that require rapid discharge, the system can efficiently process them through the adaptive movement of the cutter heads, dense crushing and cutting points, and smooth discharge channels, greatly reducing the risk of efficiency decline or failure shutdown caused by complex material types.

[0075] See Figure 1 and Figures 9 - 15 , the cutting ring assembly is arranged on the periphery of the cutting disc assembly, specifically fixed relative to the side wall of the grinding cavity 10. The cutting ring assembly includes a cutting ring 4, an upper washer 41, and a lower washer 42. The cutting ring 4 is a ring body with equal diameters up and down. The inner peripheral wall of the cutting ring 4 is provided with second cutting teeth 401 extending radially inward. The second cutting teeth 401 are triangular teeth extending vertically, the top of which forms a cutting inclined surface 4010 that slopes downward from outside to inside, and the bottom of which is a cutting surface extending horizontally.

[0076] On the inner peripheral wall of the lower cavity 12 of the grinding cavity 10, a first annular mounting groove 120 is formed. The first annular mounting groove 120 extends upward to the top surface of the lower cavity 12, thus forming an opening at the top. The upper washer 41 and the lower washer 42 of the cutting ring assembly are stacked vertically in the first annular mounting groove 120. After the upper cavity 11 is buckled on the lower cavity 12, the upper washer 41 and the lower washer 42 are pressed downward. To prevent the cutting ring assembly from rotating circumferentially, vertical second positioning notch openings 44 are provided on the outer peripheral walls of the upper and lower washers 42. On the inner wall of the first annular mounting groove 120, there are second positioning blocks 121 protruding radially outward. The second positioning blocks 121 are vertically extending convex blocks that are adapted to each other, and they can be inserted into the second positioning notch openings 44 to restrict the circumferential rotation of the upper washer 41 and the lower washer 42.

[0077] On the inner peripheral walls of the upper washer 41 and the lower washer 42 of this embodiment, there are also second annular mounting grooves 43 for placing the cutting ring 4. The second annular mounting groove 43 formed on the inner peripheral wall of the upper washer 41 is vertically opposite to the second annular mounting groove 43 formed on the inner peripheral wall of the lower washer 42. On the upper edge and / or the lower edge of the cutting ring 4, there are first positioning notch openings 402. At the positions corresponding to the first positioning notch openings 402 on the inner wall of the second annular mounting groove 43, there are first positioning blocks 411 protruding outward. The first positioning blocks 411 can be inserted into the first positioning notch openings 402 of the cutting ring 4 to restrict the circumferential rotation of the cutting ring 4 relative to the upper washer 41 or the lower washer 42.

[0078] In some embodiments, there may be one (or a group) of the cutting disc 21 and the second cutting teeth 401 on the cutting ring 4. However, considering the limited processing capacity of the single-layer cutting structure and its inability to meet high-load requirements, in the preferred embodiments, a multi-layer cutting design is adopted to improve the high-load processing capacity. Specifically: the cutting disc 21 is provided with upper, middle, and lower layers, all of which rotate synchronously with the cutter disc 20. The inner wall of the cutting ring 4 is provided with two groups of second cutting teeth 401 arranged up and down. Among them, each second cutting tooth 401 arranged in sequence in the circumferential direction of the cutting ring 4 is denoted as a group of second cutting teeth 401. The two groups of second cutting teeth 401 arranged up and down and the first cutting teeth 211 of the three-layer cutting disc 21 are arranged staggered in the up-and-down direction. Specifically, each first cutting tooth 211 of the upper cutting disc 21 is located above each second cutting tooth 401 of the upper group of second cutting teeth 401, and each first cutting tooth 211 of the middle cutting disc 21 is located between each second cutting tooth 401 of the upper group of second cutting teeth 401 and each second cutting tooth 401 of the lower group of second cutting teeth 401. Each second cutting tooth 401 of the cutting ring 4 and the main body of the cutting ring 4 are integrally designed to increase the structural strength. Specifically, a vertical convex edge 40 protruding radially inward is first machined on the inner wall of the cutting ring 4, and two second cutting teeth 401 spaced a certain distance apart up and down are directly machined on the inner edge of the convex edge 40, thereby ensuring the overall strength of the cutting ring 4, reducing the stamping part processing procedures, and lowering the cost. After the cutting ring assembly is installed in place in the grinding cavity 10, the corresponding first cutting teeth 211 of the cutting disc 21 are located above the cutting inclined surfaces 4010 of the corresponding second cutting teeth 401 of the cutting ring 4. To cooperate with the lowermost cutting disc 21, a circle of third cutting teeth 421 arranged in sequence in the circumferential direction is additionally provided on the lower part of the inner peripheral wall of the lower washer 42, and each third cutting tooth 421 is located below the first cutting teeth 211 of the lowermost cutting disc 21, and the two form three-stage cutting.

[0079] The size of the cutting ring 4 and the number of second cutting teeth 401 in each group of second cutting teeth 401 in this embodiment can be designed according to the size of the grinding cavity 10. For a garbage disposer of conventional size, the number of teeth in each group of second cutting teeth 401 of the cutting ring 4 can be designed to be about 72.

[0080] In this embodiment, the first cutting teeth 211 on the cutting disc 21 and the adjacent second cutting teeth 401 on the cutting ring 4 overlap partially in the up-and-down direction, and there is a certain axial gap between them in the up-and-down direction. This axial gap is denoted as the first distance, and the value range of the first distance is 1 mm ≤ the first distance ≤ 10 mm. The above-mentioned first distance may refer to the distance between the first cutting tooth 211 and the adjacent second cutting tooth 401 above, such as Figure 10 L1 shown in, and the preferred value of L1 is: 5 mm; it may also refer to the distance between the first cutting tooth 211 and the adjacent second cutting tooth 401 below, such asFigure 10 L2 shown in the figure, the preferred value range of L2 is: 1mm ≤ L2 ≤ 7mm, and the most preferred value is 2mm.

[0081] When the cutting disc 21 rotates with the cutter disc 20, the first cutting teeth 211 of the rotating cutting disc 21 and the second cutting teeth 401 on the fixed cutting ring 4 form a relative shearing motion, generating a multi-directional cutting force on fibrous waste. Due to the design that the upper and lower parts of the first cutting teeth 211 and the second cutting teeth 401 overlap and a gap is reserved, it can not only enhance the cutting synergy but also enable the cut waste materials to fall smoothly.

[0082] In this embodiment, a fixed cutting ring 4 with second cutting teeth 401 is added around the cutting disc 21. When the cutting disc 21 rotates at a high speed, the first cutting teeth 211 on its outer periphery and the second cutting teeth 401 on the inner wall of the fixed ring can form an effective cutting cooperation, generating a multi-directional shearing force, which can effectively cut the fibrous waste materials passing downward through the gap between the two, ensuring the cutting effect. On the other hand, the three-dimensional cutting structure formed by the double cutting teeth (the first cutting teeth 211 on the cutting disc 21 and the second cutting teeth 401 on the cutting ring 4) can significantly extend the residence time of the materials, enabling the materials to be fully cut and crushed, and effectively reducing the risk of sewer blockage.

[0083] Figures 16 - 22 The figure shows the housing structure of the garbage processor of this embodiment. The housing includes an inner housing 91 and an outer housing 92. The inner housing 91 can be made of corrosion-resistant plastic material or metal material. A connection port 9110 is provided at the top of the inner housing 91 for installing a connector 23 to connect with the sewer pipe of the sink. The internal space of the inner housing 91 forms a receiving chamber for accommodating components such as a grinding unit. The overall shape of the inner housing 91 is a cylindrical structure, and its outer surface can be red (the natural color of the material). The outer housing 92 is sleeved outside the inner housing 91 and can serve as a decorative shell. The outer housing 92 can also be made of plastic material. The outer housing 92 is divided into an upper half shell 921 and a lower half shell 922. The upper half shell 921 and the lower half shell 922 are spaced apart in the vertical direction, and a circular gap 94 is formed between them in the circumferential direction. The circular gap 94 is inclined relative to the longitudinal axis of the housing (of course, the circular gap 94 can also be arranged in a wavy shape along the circumferential direction of the housing), so that the part of the inner housing 91 corresponding to the outer gap 94 is exposed through the gap, forming a two-color visual effect around the housing. The width of the circular gap channel is basically the same in its length direction, and of course, it can also vary slightly.

[0084] See Figure 18, both the upper half shell 921 and the lower half shell 922 of the outer shell 92 are closed annular structures, and the inner diameter is slightly larger than the maximum outer diameter of the inner shell 91. The outer diameter of the peripheral wall of the main body of the inner shell 91 gradually increases from the bottom to the top, forming a conical flask-shaped structure. During installation, both the upper half shell 921 and the lower half shell 922 slide upward from the bottom of the inner shell 91 and are sleeved until they reach the preset position. There are two symmetric convex buttons 92110 on the inner wall of the upper half shell 921, and L-shaped limit sliding grooves 913 are opened at the corresponding positions on the outer wall of the inner shell 91. The L-shaped limit sliding groove 913 includes a vertically extending longitudinal groove section and a horizontally extending transverse groove section, and the transverse groove section is connected to the top of the longitudinal groove section, so that the limit sliding groove 913 is an inverted L-shaped structure. Passing through the bottom of the inner shell 91, the upper half shell 921 moves upward, and the convex button 92110 slides upward along the longitudinal groove section of the limit sliding groove 913 to the extreme position, and then rotates a certain distance and can be snapped into the transverse groove section to realize the limit fixation of the two in the up and down directions. The width dimension of the convex button 92110 is adapted to the limit sliding groove 913, so that the convex button 92110 will not easily come out of the limit sliding groove 913, ensuring the reliability of the packaging installation.

[0085] Combined Figure 17 with Figure 21 , the part where the peripheral wall of the inner shell 91 is connected to the bottom wall is denoted as the lower peripheral wall 9101 of the inner shell 91. The outer diameter dimension of the lower peripheral wall 9101 of the inner shell 91 is smaller than the outer diameter dimension of the main body of the inner shell 91 (which can also be understood as the upper peripheral wall of the inner shell 91), thus forming an annular limit step portion 9102. The peripheral edge of the lower port of the lower half shell 922 of the outer shell 92 has an inwardly extending annular flange 9222. When the lower half shell 922 is sleeved and installed upward from the bottom of the inner shell 91, the annular flange 9222 of the lower half shell 922 abuts against the lower part of the limit step portion 9102, and then the annular flange 9222 and the limit step portion 9102 can be connected by fasteners (such as screws). The limit step portion 9102 and the annular flange 9222 are fixed by fasteners, effectively enhancing the connection strength between the lower half shell 922 and the inner shell 91 and preventing the shell from separating due to vibration or load. At the same time, the fasteners provided between the annular flange 9222 and the limit step portion 9102 also facilitate the user to use tools for installation and disassembly. After the lower half shell 922 is installed in place outside the inner shell 91, a part of the lower peripheral wall 9101 of the inner shell 91 is also exposed at the bottom and can be seen by the user from the side, further increasing the two-color visual effect.

[0086] To center and position the lower half shell 922 and the inner shell 91 for facilitating the installation of fasteners, a positioning plate 9223 that extends vertically and protrudes inward is provided on the inner peripheral wall of the lower half shell 922, and a vertically extending positioning groove 914 is correspondingly formed on the upper peripheral wall of the inner shell 91. The lower port of the positioning groove 914 is located on the above-mentioned limiting step portion 9102. When installing the lower half shell 922, the positioning plate 9223 on the lower half shell 922 is vertically aligned with the lower port of the positioning groove 914 on the inner shell 91, and the lower half shell 922 can be moved upward until the annular flanging 9222 abuts against the limiting step portion 9102 of the inner shell 91.

[0087] See Figure 19 , the inner shell 91 includes a shell body 910 and a detachable (or connected by screws) cover body 911 provided on the top of the shell body 910. A circular connection port 9110 is formed in the center of the cover body 911 for accessing the sewage pipe. The top edge of the upper half shell 921 of the outer shell 92 is also arranged in a wavy shape. From the side view, a part of the cover body 911 can be exposed from the top of the upper half shell 921, further enhancing the sense of hierarchy at the top.

[0088] Combined with Figure 18 and Figure 22 , in some embodiments, an installation plug 93 is added to the housing to achieve a sealed connection with an external pipe. The installation plug 93 can be made of silica gel, and an annular groove 930 is formed on its outer peripheral edge. A first installation hole 912 is formed on the peripheral wall of the inner shell 91, and the first installation hole 912 is a vertically extending waist-shaped hole. Second installation holes 9211 and third installation holes 9221 are respectively formed at corresponding positions on the upper half shell 921 and the lower half shell 922. During installation, the installation plug 93 is inserted into the first installation hole 912, so that the outer edge of the second installation hole 9211 is embedded in the upper part of the groove 930 (the upper edge of the first installation hole 912 is also embedded at the same time), and the outer edge of the third installation hole 9221 is embedded in the lower part of the groove 930 (the lower edge of the first installation hole 912 is also embedded at the same time). Through the nested cooperation of the groove 930 and multiple installation holes, a good seal is achieved to prevent liquid leakage.

[0089] The housing of the garbage processor in this embodiment adopts a nested structure of an inner housing 91 and an outer housing 92. A clearance space 94 is provided between the upper and lower half-shells 922 of the outer housing 92. Therefore, when a housing with a two-color or multi-color structure is required, only by utilizing the clearance space 94, the visible part of the inner housing 91 can naturally form a second color band different from the color of the outer housing 92, without the need for traditional two-color injection molding or color separation spraying processes, directly eliminating multiple molding processes and the investment in supporting molds, and greatly reducing the production cost. Especially when applied to a garbage processor, since the color difference between the inner housing 91 and the outer housing 92 of the housing is achieved by the color of the material itself rather than a coating, it effectively solves the problems of color difference control and fading hidden dangers in the prior art of two-color injection molding or color separation spraying, thus significantly extending the service life of the product and enhancing the market competitiveness of the product. On the basis of the above embodiments, other embodiments can be obtained by replacing and improving the relevant technical features of the housing. For example, the annular clearance of the clearance space 94 can be replaced by at least two strip-shaped clearances distributed at equal or unequal intervals. The colors between the inner housing 91 and the outer housing 92 can be changed according to actual needs. For example, the inner housing 91 is made of a blue material, and the outer housing 92 is made of a silver aluminum alloy material. The strip-shaped clearance makes the blue area of the inner housing 91 appear intermittently exposed, forming a unique two-color stripe effect. Another example is that the upper half-shell 921 and the lower half-shell 922 and the inner housing 91 may not adopt a detachable connection method, such as being replaced by an adhesive connection method for fixed connection. Another example is that both the upper half-shell 921 and the lower half-shell 922 can also adopt a split design. For example, the upper half-shell 921 is divided into left and right halves, and there are insertion slots and locking screws at the docking place; the lower half-shell 922 is divided into front and rear halves and is connected by elastic buckles. During installation, first assemble the left and right upper half-shells 921 and fix them to the inner housing 91 with screws, then snap the front and rear lower half-shells 922 together, and finally fasten them with bolts through the annular flanging 9222. This design is suitable for scenarios where there is insufficient vertical installation space and frequent disassembly and maintenance are required.

Claims

1. A grinding device for a garbage processor, comprising a grinding ring (26) located in a grinding cavity (10) of the garbage processor and a cutter head assembly (2) that can be driven by a driving motor (3) to rotate relative to the grinding ring (26). The cutter head assembly (2) includes a cutter head (20) and a cutter head body that is rotatably connected to the cutter head (20) about an axis extending vertically. It is characterized in that: One end of the cutter head body adjacent to the grinding ring (26) has a cutting notch (245) that penetrates to the bottom surface of the cutter head body. The grinding ring (26) has inwardly protruding convex teeth (260). During the rotation of the cutter head body with the cutter disc (20), the convex teeth (260) of the grinding ring (26) can pass through the cutting notch (245) of the cutter head body and form a cutting fit with the part above the cutting notch (245) of the cutter head body.

2. The grinding device of the garbage processor according to claim 1, characterized in that: The cutter head body includes a connecting member (23) and a cutter head main body (24). The connecting member (23) is rotatably connected to the cutter disc (20) through a first pin shaft (251) extending vertically, and the cutter head main body (24) is rotatably connected to the connecting member (23) in a manner that can deflect up and down relative to the connecting member (23).

3. The grinding device of the garbage processor according to claim 2, characterized in that: There are at least two cutter head main bodies (24) arranged side by side. Each of the cutter head main bodies (24) of the same cutter head body is rotatably connected to the same connecting member (23) and can independently deflect up and down relative to the connecting member (23).

4. The grinding device of the garbage processor according to claim 3, characterized in that: The connecting member (23) includes a horizontally extending connecting plate (231) and a U-shaped plate (232) connected to the end of the connecting plate (231). The U-shaped plate (232) includes two vertically extending and side-by-side vertical plates. A horizontally extending second pin shaft (252) is provided between the two opposite vertical plates of the U-shaped plate (232). Each of the cutter head main bodies (24) of the same cutter head body is rotatably connected to the second pin shaft (252).

5. The grinding device of the garbage processor according to claim 4, characterized in that: Among each of the cutter head main bodies (24) of the same cutter head body, at least two adjacent cutter head main bodies (24) have different top heights.

6. The grinding device of the garbage processor according to claim 4, characterized in that: The cutter head main body (24) has a connecting end (241) for connecting to the connecting member (23) and a free end (242) far from the connecting member (23). The connecting ends (241) of each of the cutter head main bodies (24) of the same cutter head body are located within the U-shaped plate (232) and are connected to the second pin shaft (252).

7. The grinding device of the garbage processor according to claim 6, wherein: There is a height difference in the positions of the highest regions of the top surfaces of two adjacent cutter head main bodies (24) among each of the cutter head main bodies (24) of the same cutter head body.

8. The grinding device of the garbage processor according to claim 6, characterized in that: At the free end (242) of the cutter head main body (24), there is a cutting convex portion (244) extending radially outward along the cutter disc (20). The area below the cutting convex portion (244) at the free end (242) of the cutter head main body (24) is the cutting notch (245) of the cutter head body. The cutting convex portions (244) of at least two adjacent cutter head main bodies (24) among each of the cutter head main bodies (24) of the same cutter head body are arranged in a staggered manner in the vertical direction.

9. The grinding device of the garbage processor according to claim 8, characterized in that: There is a height difference at the tops of the cutting convex portions (244) of two adjacent cutter head main bodies (24) among each of the cutter head main bodies (24) of the same cutter head body.

10. The grinding device of the garbage processor according to any one of claims 4 to 9, characterized in that: The rotational connection structure between the cutter head body (24) and the connecting member (23) is configured such that during the upward deflection of the cutter head body (24) relative to the connecting member (23), the cutter head body (24) moves towards the center of the cutter disc (20) relative to the connecting member (23) from its initial state, and during the downward deflection of the cutter head body (24) relative to the connecting member (23) back to the initial state, the cutter head body (24) moves away from the center of the cutter disc (20) relative to the connecting member (23).

11. The grinding device of the garbage processor according to claim 8, characterized in that: The second pin shaft (252) is fixed relative to the connecting member (23). An installation shaft hole (243) through which the second pin shaft (252) passes is formed in the connecting end (241) of the cutter head body (24). The installation shaft hole (243) is an oval hole extending from the connecting end (241) of the cutter head body (24) towards the side where its free end (242) is located. On the inner side wall of the installation shaft hole (243), there is an arc-shaped rib (2430) protruding towards the free end (242) of the cutter head body (24) on one side adjacent to the connecting end (241) of the cutter head body (24). On the outer peripheral wall of the second pin shaft (252), there is an arc-shaped groove (2520) for the arc-shaped rib (2430) to be embedded therein on the side towards the center position of the cutter disc (20). During the upward deflection of the cutter head body (24) relative to the connecting member (23), the arc-shaped rib (2430) gradually disengages from the arc-shaped groove (2520), thereby driving the cutter head body (24) as a whole to move towards the center of the cutter disc (20) relative to the connecting member (23). The arc-shaped groove (2520) of the second pin shaft (252) and the arc-shaped rib (2430) of the cutter head body (24) together constitute the rotational connection structure between the cutter head body (24) and the connecting member (23).

12. The grinding device of the garbage processor according to claim 8, characterized in that: Connection holes (2320) are formed on both vertical plates of the U-shaped plate (232). On the inner peripheral wall of the connection hole (2320), there is a positioning rib (2321). The positioning rib (2321) can be inserted into the arc-shaped groove (2520) of the second pin shaft (252) to limit the rotation of the second pin shaft (252) around its own axis.

13. The grinding device of the garbage processor according to claim 8, characterized in that: The lower part of the grinding ring (26) has comb-shaped teeth (261) extending vertically and arranged circumferentially in sequence.

14. The grinding device of the garbage processor according to claim 13, characterized in that: A cutting groove (262) is formed between two adjacent comb-shaped teeth (261) on the grinding ring (26). One of the two side edges of the cutting groove (262) extends vertically, and the other side edge extends obliquely downward against the rotation direction of the cutter disc (20).

15. The grinding device of the garbage processor according to any one of claims 1 to 9, characterized in that Also included is: A cutting disc (21) located below the cutter disc (20) and capable of rotating together with the cutter disc (20). The outer peripheral edge of the cutting disc (21) has first cutting teeth (211). A cutting ring assembly is located inside the grinding cavity (10) and is fixed relative to the grinding cavity (10). The cutting ring assembly includes a cutting ring (4) located outside the cutting disc (21). The inner peripheral wall of the cutting ring (4) has second cutting teeth (401) extending radially inward. During the rotation of the cutting disc (21) with the cutter disc (20), the first cutting teeth (211) and the second cutting teeth (401) form a cutting cooperation.

16. The grinding device of the garbage processor according to claim 15, characterized in that: The first cutting teeth (211) and the second cutting teeth (401) partially overlap in the vertical direction and have a gap in the vertical direction. The distance between the first cutting teeth (211) and the second cutting teeth (401) in the vertical direction is denoted as the first distance, and the value range of the first distance is: 1mm ≤ first distance ≤ 10mm.

17. The grinding device of the garbage processor according to claim 15, characterized in that: The second cutting teeth (401) are triangular teeth extending vertically. The top of the triangular teeth has a cutting inclined surface (4010) inclined downward from outside to inside. The first cutting teeth (211) are located above the cutting inclined surface (4010) of the second cutting teeth (401).

18. The grinding device of the garbage processor according to claim 15, characterized in that: There are multiple second cutting teeth (401) arranged in sequence along the circumferential direction on the cutting ring (4). Each of the second cutting teeth (401) arranged in sequence along the circumferential direction of the cutting ring (4) is denoted as a group of second cutting teeth (401). There are at least two cutting discs (21) arranged one above the other. There are at least two groups of second cutting teeth (401) arranged one above the other on the cutting ring (4). Each group of second cutting teeth (401) and each cutting disc (21) are arranged alternately one above the other in the vertical direction.

19. The grinding device of the garbage processor according to claim 18, wherein: The inner peripheral wall of the cutting ring (4) has a convex edge (40) protruding radially inward and extending vertically. There are multiple convex edges (40), and each convex edge (40) is arranged at intervals along the circumferential direction of the cutting ring (4). The second cutting teeth (401) are formed on the inner side edge of the convex edge (40).

20. The grinding device of the garbage processor according to claim 15, characterized in that: The cutting ring assembly further includes an upper washer (41) and a lower washer (42) stacked one above the other. The inner peripheral wall of the grinding cavity (10) has a first annular mounting groove (120) for placing the upper washer (41) and the lower washer (42). A second annular mounting groove (43) for arranging the cutting ring (4) is provided on the inner peripheral wall of the upper washer (41) or the inner peripheral wall of the lower washer (42) or the inner peripheral walls of both the upper washer (41) and the lower washer (42). The upper edge and / or the lower edge of the cutting ring (4) has a first positioning groove (914) opening (402). A first positioning block (411) is provided on the inner wall of the second annular mounting groove (43). The first positioning block (411) can be inserted into the first positioning groove (914) opening (402) to limit the circumferential rotation of the cutting ring (4) relative to the upper washer (41) or the lower washer (42).

21. A garbage processor, comprising a housing and a grinding device disposed within the housing, characterized in that: The grinding device adopts the grinding device of the garbage processor according to any one of claims 1 to 20.

22. The garbage processor according to claim 21, characterized in that: The housing includes an inner housing (91) and an outer housing (92) sleeved outside the inner housing (91). The outer housing (92) includes an upper half housing and a lower half housing which are sequentially arranged at intervals up and down. A clearance space (94) is reserved between the upper half housing and the lower half housing in the up-down direction. The part of the inner housing (91) that faces the clearance space (94) inside and outside is visible from the outside through the clearance space (94).

23. The garbage processor according to claim 22, characterized in that: The outer diameter of the peripheral wall of the inner housing (91) gradually increases from the lower part to the upper part. Both the upper half housing and the lower half housing move upward relative to the inner housing (91) and are sleeved and installed outside the inner housing (91).

24. The garbage processor according to claim 23, wherein: An inwardly protruding buckle (92110) is provided on the inner wall of the upper half housing. An inverted L-shaped limit sliding groove (913) is provided on the outer wall of the inner housing (91). The upper half housing and the inner housing (91) are rotationally installed and limited by sliding the buckle (92110) in the limit sliding groove (913). The part of the inner housing (91) that is in contact with the bottom wall is denoted as the lower peripheral wall (9101) of the inner housing (91). The outer diameter dimension of the lower peripheral wall (9101) of the inner housing (91) is smaller than the outer diameter dimension of the main body of the inner housing (91), thereby forming a limit step portion (9102). The peripheral edge of the lower port of the lower half housing has an inwardly extending annular flange (9222). The annular flange (9222) abuts against the lower part of the limit step portion (9102) and is connected by a fastener.

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