CN219547931U - Grinding assembly structure, grinding mechanism and kitchen waste processor - Google Patents

Abstract

The utility model discloses a grinding assembly structure, a grinding mechanism and a kitchen waste processor, wherein the grinding assembly structure comprises a first grinding assembly and a second grinding assembly, the second grinding assembly comprises a rotary grinding piece and a fixed grinding piece, the rotary grinding piece is positioned above the fixed grinding piece, the rotary grinding piece is fixedly arranged at the bottom of a rotary cutter head, one end or two ends of the rotary grinding piece are provided with grinding shearing parts protruding downwards, and the grinding shearing parts are used for being matched with the fixed grinding piece to grind and shear kitchen waste. According to the utility model, the first grinding component and the second grinding component are arranged in the grinding cavity, so that the grinding efficiency and the grinding precision can be effectively improved, and the second grinding component has the advantages of convenience in discharging to the discharging bin, simple structure, low cost and the like.

Description

Grinding assembly structure, grinding mechanism and kitchen waste processor

Technical Field

The utility model relates to the technical field of food waste disposers, in particular to a grinding assembly structure, a grinding mechanism and a kitchen waste disposer.

Background

At present, the existing kitchen waste processor (food waste processor) has the defect of poor grinding effect of a grinding mechanism, so that the situation that the grinding efficiency is low, kitchen waste is easy to block in the grinding mechanism and the like occurs in the grinding work of the kitchen waste processor, and the discharged kitchen waste is easy to block in a sewage pipeline after a long time due to low grinding precision; in addition, the grinding effect of the grinding mechanism of some kitchen garbage disposers is good, but the structure is complex and the cost is high.

In view of the foregoing, it is desirable to provide a polishing assembly structure, a polishing mechanism and a kitchen waste disposer that can solve the above problems.

Disclosure of Invention

The utility model aims to provide a grinding assembly structure, a grinding mechanism and a kitchen waste processor, which overcome the technical problems or at least partially solve the problems.

To achieve the purpose, the utility model adopts the following technical scheme:

the grinding component structure comprises a first grinding component and a second grinding component, wherein the first grinding component comprises a rotary cutter head and a grinding hammer rotatably arranged on the rotary cutter head, a first mounting hole for fixedly mounting the rotary cutter head on a motor shaft is arranged in the middle of the rotary cutter head,

the second grinding component comprises a rotary grinding piece and a fixed grinding piece, the rotary grinding piece is positioned above the fixed grinding piece, the rotary grinding piece is fixedly arranged at the bottom of the rotary cutter head, one end or two ends of the rotary grinding piece are provided with grinding shearing parts protruding downwards, and the grinding shearing parts are used for being matched with the fixed grinding piece to realize grinding shearing of kitchen waste;

the middle position of the rotary grinding piece is provided with a second mounting hole for fixedly mounting the rotary grinding piece on a motor shaft, or the middle position of the rotary grinding piece is provided with a through hole through which the motor shaft can pass.

Preferably, the grinding shearing part is a first protruding part extending downwards from two ends of the rotary grinding piece body, or the grinding shearing part is a second protruding part arranged at the bottoms of two ends of the rotary grinding piece body.

Preferably, the first protrusion is disposed perpendicular to the rotary grinding member body or is disposed obliquely.

Preferably, the rotary grinding member is fixedly mounted to the bottom of the rotary cutterhead by rivets.

Preferably, the rotary grinding member and the rotary cutter head are integrally formed, or the rotary grinding member is an independent component which can be separately arranged from the rotary cutter head.

Preferably, one or more grinding shearing parts are arranged at two ends of the rotary grinding piece, and the grinding shearing parts at two ends of the rotary grinding piece are symmetrically arranged or are arranged in a mirror symmetry manner.

Preferably, a plurality of shearing teeth are arranged on the periphery of the fixed grinding piece, the opening direction of the shearing teeth faces to the direction of the motor shaft, or the opening direction of the shearing teeth faces away from the direction of the motor shaft; or the shearing teeth are formed by adjacent rectangular grooves and/or trapezoid grooves;

preferably, the gap between the shearing teeth is gradually increased towards the direction of the motor shaft, and the shearing teeth are preferably oblique shearing teeth.

Preferably, the fixed grinding part is in a ring shape, and a plurality of discharging holes are formed in the periphery of the fixed grinding part.

The utility model provides a grinding mechanism, includes grinds the chamber, grind the chamber and grind the chamber down including interconnect's grinding, grind down the intracavity and be provided with row's bin, grind down the lateral wall in chamber be provided with row's bin intercommunication bin outlet, grind the intracavity and be provided with the grinding subassembly structure as described above, wherein, first grinding subassembly is located grind the chamber, the top of row's bin is provided with and is used for holding the second grinding subassembly grind and hold the cavity, fixed grinding piece fixed mounting is in the second grinds the bottom that holds the cavity.

Preferably, a plurality of limiting parts are arranged on the periphery of the fixed grinding part, and a limiting opening matched with the limiting parts is arranged at the bottom of the second grinding accommodating cavity.

Preferably, the first grinding assembly further comprises a fixed knife wall, fixed knife teeth are arranged at the bottom of the fixed knife wall, and the fixed knife wall is arranged on the inner wall of the grinding upper cavity.

The utility model also provides a kitchen waste processor, which comprises the grinding mechanism.

The beneficial effects of the utility model at least comprise one of the following:

(1) The first grinding component and the second grinding component are arranged in the grinding cavity, so that the grinding efficiency and the grinding precision can be effectively improved;

(1) The second grinding component has the advantages of being convenient for discharge to the discharge bin, preventing kitchen waste from being blocked on the second grinding component and the like, and has the advantages of being simple in structure, low in cost and the like.

Drawings

FIG. 1 is a schematic perspective view of a polishing assembly according to an embodiment of the present utility model;

FIG. 2 is an exploded view of the abrasive assembly structure of an embodiment of the present disclosure;

FIG. 3 is a schematic view of a first grinding assembly and a rotary grinding member according to an embodiment of the present utility model;

FIG. 4 is a schematic perspective view of one embodiment of a rotary abrasive article according to an embodiment of the present utility model;

FIG. 5 is a schematic perspective view of another perspective of one embodiment of the rotary abrasive article according to the present disclosure;

FIG. 6 is a schematic perspective view of one embodiment of a rotary abrasive article according to an embodiment of the present utility model;

FIG. 7 is a schematic perspective view of one embodiment of a rotary abrasive article according to an embodiment of the present utility model;

FIG. 8 is a schematic perspective view of one embodiment of a rotary abrasive article according to an embodiment of the present utility model;

FIG. 9 is a schematic perspective view of one embodiment of a rotary abrasive article according to an embodiment of the present utility model;

FIG. 10 is a schematic bottom view of one embodiment of a rotary abrasive article according to an embodiment of the present utility model;

FIG. 11 is a schematic perspective view of one embodiment of a rotary abrasive article according to an embodiment of the present utility model;

FIG. 12 is a schematic view of one of the fixed abrasive articles of the present embodiment;

FIG. 13 is a schematic view of one of the fixed abrasive articles of the present embodiment;

FIG. 14 is a schematic perspective view of one embodiment of a fixed abrasive article according to an embodiment of the present utility model;

FIG. 15 is a schematic view of one of the fixed abrasive articles of the present embodiment;

FIG. 16 is a schematic perspective view of one embodiment of a fixed abrasive article according to an embodiment of the present utility model;

FIG. 17 is a schematic perspective view of one embodiment of a fixed abrasive article according to an embodiment of the present utility model;

FIG. 18 is a schematic view showing an exploded view of the grinding mechanism according to the embodiment of the present utility model;

FIG. 19 is a schematic cross-sectional view of a polishing mechanism according to an embodiment of the present utility model;

FIG. 20 is a schematic perspective view of a polishing lower chamber according to an embodiment of the present utility model;

FIG. 21 is a schematic view of the structure of the lower grinding chamber and the fixed grinding member according to the embodiment of the utility model;

FIG. 22 is a schematic perspective view of a kitchen waste disposer in accordance with an embodiment of the present utility model;

fig. 23 is a schematic view showing an exploded structure of the kitchen waste disposer in the embodiment of the utility model.

In fig. 1 to 23:

10. rotating a cutter head; 11. a grinding hammer; 12. a first mounting hole; 20. Rotating the grinding member; 21. grinding the shearing part; 22. a second mounting hole; 23. rivet hole; 24. A through hole; 30. A fixed abrasive article; 31. cutting teeth; 32. a limit part; 33. a discharge hole; 40. grinding the upper cavity; 41. a fixed knife wall; 42. fixing the cutter teeth; 50. grinding the lower cavity; 51. a discharge port; 52. discharging bin; 53. a second grinding accommodation cavity; 54. a limit opening; 60. a motor shaft; 61. a bolt; 70. and a motor part.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

It should be noted that, in the description of the present utility model, the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model; the terms "mounted," "sleeved/connected," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance in order to see the description for distinguishing between different components.

Embodiment one:

1-3, a grinding assembly structure is applied to a kitchen waste processor, and comprises a first grinding assembly and a second grinding assembly, wherein the first grinding assembly comprises a rotary cutter head 10 and a grinding hammer 11 rotatably arranged on the rotary cutter head 10, a first mounting hole 12 for fixedly mounting the rotary cutter head 10 on a motor shaft 60 is formed in the middle position of the rotary cutter head 10, and in actual application, the rotary cutter head 10 and the motor shaft 60 can be fixedly mounted through bolts 61;

the second grinding assembly comprises a rotary grinding piece 20 and a fixed grinding piece 30, the rotary grinding piece 20 is positioned above the fixed grinding piece 30, the rotary grinding piece 20 is fixedly arranged at the bottom of the rotary cutter head 10, one end or two ends of the rotary grinding piece 20 are provided with grinding shearing parts 21 protruding downwards, and the grinding shearing parts 21 are used for being matched with the fixed grinding piece 30 to realize grinding shearing of kitchen wastes;

the rotary grinding member 20 is provided at a central position thereof with a second mounting hole 22 for fixedly mounting the rotary grinding member 20 on the motor shaft 60, or the rotary grinding member 20 is provided at a central position thereof with a through hole 24 for passing the motor shaft 60 therethrough, as shown in fig. 6.

As shown in fig. 1, when the rotary grinding member 20 and the fixed grinding member 30 rotate relatively, the grinding shearing portion 21 and the fixed grinding member 30 can realize grinding shearing of kitchen waste; the rotary grinding member 20 may be fixedly mounted on the motor shaft 60, and/or the rotary grinding member 20 may be fixedly connected to the first grinding assembly, that is, the rotation of the rotary grinding member 20 may be directly driven by the motor shaft 60, may be driven by the first grinding assembly, or may be simultaneously driven by the motor shaft 60 and the first grinding assembly.

In one preferred embodiment, the rotary grinding member 20 is a separate component that is configured to be separated from the rotary cutterhead 10, and the rotary grinding member 20 is fixedly mounted to the bottom of the rotary cutterhead 10 by rivets. In a specific embodiment, the grinding hammers 11 on the rotary cutterhead 10 are rotatably disposed on the rotary cutterhead 10 through rivets, two rivet holes 23 are disposed on the rotary grinding member 20, the positions of the two rivet holes 23 of the rotary grinding member 20 correspond to the positions of the two grinding hammers 11 on the rotary cutterhead 10, and the rotary grinding member 20 and the two grinding hammers 11 can be fixed on the upper side and the lower side of the rotary cutterhead 10 through two rivets, as shown in fig. 1 and fig. 3. In other embodiments, the rotary abrasive member 20 and the rotary cutterhead 10 are also integrally formed.

In some embodiments, the first grinding assembly may also use other structures of the rotary cutterhead 10 in the prior art, such as the periphery of the rotary cutterhead 10 provided with grinding teeth, the rotary cutterhead 10 provided with protrusions for increasing grinding efficiency, etc. besides the structures shown in fig. 1-2, the first grinding assembly is not illustrated here.

The specific structure of the rotary grinding member 20 and the fixed grinding member 30 in the second grinding assembly is described in detail below:

as shown in fig. 4 to 8, the grinding shearing portion 21 is a first protrusion extending downward from both ends of the body of the rotary grinding member 20, and the first protrusion is disposed perpendicular to or inclined with respect to the body of the rotary grinding member 20.

One or more grinding shearing parts 21 are arranged at two ends of the rotary grinding member 20, and the grinding shearing parts 21 at two ends of the rotary grinding member 20 are symmetrically arranged or mirror symmetrically arranged.

In one preferred embodiment, as shown in fig. 4-5, the first protruding portions extend downward from two ends of the body of the rotary grinding member 20 to form the grinding shearing portion 21, four first protruding portions are disposed at two ends of the body of the rotary grinding member 20 and distributed on two ends of the body of the rotary grinding member 20, the first protruding portions are perpendicular to the body of the rotary grinding member 20, and the first protruding portions at two ends are preferably symmetrically disposed. Alternatively, the number of the first protrusions may be two, and the first protrusions may be disposed in mirror symmetry at two ends of the body of the rotary grinding member 20, as shown in fig. 6. It should be noted that, the first protrusion in this embodiment may also be disposed obliquely to the body of the rotary grinding member 20, and the inclination angle may be set according to actual needs, for example, the inclination angle may be set to 60 ° -80 °.

In one preferred embodiment, as shown in fig. 7-8, the first protruding portions extend downward from two ends of the body of the rotary grinding member 20 to form the grinding shearing portion 21, two first protruding portions are disposed at two ends of the body of the rotary grinding member 20 and distributed on two ends of the body of the rotary grinding member 20, the first protruding portions and the body of the rotary grinding member 20 are disposed obliquely, and the first protruding portions at two ends are preferably disposed in a mirror symmetry manner.

In other embodiments, the grinding shearing portion 21 may be a second protruding portion disposed at the bottom of two ends of the body of the rotary grinding member 20, as shown in fig. 9-10, where the second protruding portion is fixedly disposed at the bottom of two ends of the body of the rotary grinding member 20 to form the grinding shearing portion 21, and the second protruding portion is disposed perpendicular to the body of the rotary grinding member 20. Specifically, four second protrusions are disposed at two ends of the body of the rotary grinding member 20, as shown in fig. 9. In addition, the number of the second protrusions may be two, and one second protrusion may be provided at each end of the rotary grinding member 20 body.

As shown in fig. 11-15, the periphery of the fixed grinding part 30 is provided with a plurality of shearing teeth 31, the opening direction of the shearing teeth 31 is the direction toward the motor shaft 60 (in this embodiment, the motor shaft 60 is located at the center of the fixed grinding part 30), as shown in fig. 11-13, or the opening direction of the shearing teeth 31 may be the direction away from the motor shaft 60, as shown in fig. 14, and the opening direction of the shearing teeth 31 may be specifically set according to practical needs.

In some specific embodiments, the shearing teeth 31 may also be formed by adjacent rectangular grooves and/or trapezoidal grooves, and the shearing teeth 31 in this embodiment are closed, as shown in fig. 15.

As a preferred embodiment, the gap between the shearing teeth 31 is gradually increased toward the direction of the motor shaft 60, as shown in fig. 12, and the arrangement structure can facilitate the discharge of kitchen waste more easily.

In some preferred embodiments, the shearing teeth 31 are preferably oblique shearing teeth 31, and the oblique shearing teeth 31 in this embodiment refer to the shearing teeth 31 being disposed obliquely leftwards and/or rightwards in the plane thereof, as shown in fig. 13; through such slant setting structure, can grind shearing to kitchen garbage from different angles to can effectively improve the efficiency of grinding shearing, can also effectively prevent in the space between shearing tooth 31 of kitchen garbage card moreover.

In other embodiments, the gap between the shearing teeth 31420 can be a U-shaped groove structure, and preferably the width of the U-shaped groove gradually increases toward the direction of the motor shaft 60; the arrangement structure of the U-shaped groove can enable the friction force between the clearance between the shearing teeth 31 and kitchen waste to be smaller, so that the clearance between the shearing teeth 31 can be discharged faster.

In some preferred embodiments, the fixed abrasive element 30 is annular, and a plurality of discharge holes 33 are provided on the periphery of the fixed abrasive element 30, as shown in fig. 16. Wherein, the aperture size of the discharge hole 33 can be set according to actual needs; the fineness of the discharge hole 33 can be adjusted by setting the aperture size of the discharge hole 33. In this embodiment, the middle position of the fixed grinding member 30 is an opening or a notch (preferably a circular opening or a circular notch), so that kitchen waste after grinding and shearing can be conveniently discharged, the discharging speed of the kitchen waste can be effectively increased, and the kitchen waste is prevented from being accumulated on the fixed grinding member 30.

According to the grinding component structure, the first grinding component and the second grinding component are arranged in the grinding cavity, so that the grinding efficiency and the grinding precision can be effectively improved; in addition, the second grinding component has the advantages of being convenient for discharge to the discharge bin 52, preventing kitchen waste from being blocked on the second grinding component and the like, and the second grinding component also has the advantages of simple structure, low cost and the like.

Embodiment two:

17-20, the grinding mechanism comprises a grinding cavity, wherein the grinding cavity comprises an upper grinding cavity 40 and a lower grinding cavity 50 which are connected with each other, a discharging bin 52 is arranged in the lower grinding cavity 50, a discharging port 51 communicated with the discharging bin 52 is arranged on the side wall of the lower grinding cavity 50, and the grinding component structure in the first embodiment is arranged in the grinding cavity; wherein, the first grinding component is located in the grinding upper cavity 40, a second grinding accommodating cavity 53 for accommodating the second grinding component is arranged at the top of the discharging bin 52, and the fixed grinding member 30 is fixedly installed at the bottom of the second grinding accommodating cavity 53. The second grinding accommodating cavity 53 may be used for accommodating and installing the second grinding assembly, and may also be used as a working space for grinding and shearing of the second grinding assembly, after the kitchen garbage is ground by the first grinding assembly, the kitchen garbage may enter the second grinding accommodating cavity 53 from a gap between the fixed cutter teeth 42 in the fixed cutter wall 41, and enter the discharge bin 52 after being ground and sheared by the second grinding assembly, and finally be discharged from the discharge outlet 51.

In one preferred embodiment, the first grinding assembly further comprises a fixed blade wall 41, a fixed blade 42 is disposed at a bottom of the fixed blade wall 41, and the fixed blade wall 41 is disposed on an inner wall of the grinding upper cavity 40. The rotary cutter head 10 is matched with the fixed cutter teeth 42, so that kitchen waste can be ground, and the kitchen waste subjected to grinding treatment by the rotary cutter head 10 and the grinding hammer 11 can enter a working area of the second grinding assembly through a gap between the fixed cutter teeth 42.

As shown in fig. 19-20, the periphery of the fixed grinding element 30 is provided with a plurality of limiting parts 32, and the bottom of the second grinding accommodating cavity 53 is provided with limiting ports 54 matched with the limiting parts 32. Specifically, in this embodiment, the number of the limiting parts 32 is 3, and the limiting parts are uniformly distributed on the outer side wall of the fixed grinding element 30, and specifically, the number of the limiting parts 32 and the setting positions thereof may be actually set. In practical application, the fixed grinding member 30 is fixedly mounted on the bottom of the second grinding accommodating cavity 53 through the limiting part 32, so that the fixed grinding member can be matched with the rotary grinding member 20, and grinding of kitchen waste is achieved.

Embodiment III:

in a third embodiment, a food waste disposer is provided, which includes a grinding mechanism as described in embodiment two, as shown in fig. 20-21, a motor portion 70 of the food waste disposer is disposed at the bottom of the grinding lower chamber 50, the motor portion 70 includes a driving motor (the driving motor includes the motor shaft 60) and a circuit board for controlling the driving motor to work, and the motor portion 70 may employ a driving motor (a dc motor or an ac motor) and a circuit board in the prior art, and detailed description of specific components and specific structures thereof will not be provided herein.

It should be noted that the above embodiments are merely preferred embodiments of the present utility model and the applied technical principles, and any changes or substitutions easily conceivable to those skilled in the art within the scope of the present utility model are included in the scope of the present utility model.

Claims (14)

1. The utility model provides a grinding component structure, is applied to kitchen garbage treater, its characterized in that: comprises a first grinding component and a second grinding component, wherein the first grinding component comprises a rotary cutter head (10) and a grinding hammer (11) rotatably arranged on the rotary cutter head (10), a first mounting hole (12) for fixedly mounting the rotary cutter head (10) on a motor shaft (60) is arranged in the middle of the rotary cutter head (10),

the second grinding assembly comprises a rotary grinding piece (20) and a fixed grinding piece (30), the rotary grinding piece (20) is positioned above the fixed grinding piece (30), the rotary grinding piece (20) is fixedly arranged at the bottom of the rotary cutter head (10), one end or two ends of the rotary grinding piece (20) are provided with grinding shearing parts (21) protruding downwards, and the grinding shearing parts (21) are used for being matched with the fixed grinding piece (30) to realize grinding shearing of kitchen waste;

the middle position of the rotary grinding piece (20) is provided with a second mounting hole (22) for fixedly mounting the rotary grinding piece (20) on a motor shaft (60), or the middle position of the rotary grinding piece (20) is provided with a through hole (24) which can enable the motor shaft (60) to pass through.

2. The polishing assembly structure according to claim 1, wherein the polishing shear part (21) is a first protrusion extending downward from two ends of the body of the rotary polishing member (20), or the polishing shear part (21) is a second protrusion disposed at two bottoms of the body of the rotary polishing member (20).

3. A grinding assembly structure according to claim 1, wherein the rotary grinding member (20) is fixedly mounted to the bottom of the rotary cutterhead (10) by rivets.

4. A grinding assembly structure according to claim 1, characterized in that the rotary grinding member (20) is of integral construction with the rotary cutterhead (10) or the rotary grinding member (20) is a separate component which is separable from the rotary cutterhead (10).

5. A grinding assembly structure according to claim 2, wherein the first projection is arranged perpendicularly or obliquely to the body of the rotating grinding member (20).

6. A grinding assembly structure according to any one of claims 1-5, characterized in that one or more grinding shears (21) are provided at both ends of the rotating grinding member (20), and that the grinding shears (21) at both ends of the rotating grinding member (20) are symmetrically arranged or mirror symmetrically arranged.

7. The grinding assembly structure according to any one of claims 1-5, wherein a plurality of shearing teeth (31) are arranged on the periphery of the fixed grinding member (30), and the opening direction of the shearing teeth (31) is the direction facing the motor shaft (60), or the opening direction of the shearing teeth (31) is the direction facing away from the motor shaft (60); or the shearing teeth (31) are formed by adjacent rectangular grooves and/or trapezoid grooves.

8. A grinding assembly structure according to claim 7, characterized in that the gap between the cutting teeth (31) is gradually increased towards the direction of the motor shaft (60).

9. An abrasive component structure according to claim 8, wherein the shearing teeth (31) are oblique shearing teeth (31).

10. A grinding assembly structure according to any one of claims 1-5, wherein the fixed grinding element (30) is annular and a plurality of discharge holes (33) are provided in the periphery of the fixed grinding element (30).

11. Grinding mechanism, including grinding the chamber, grind chamber including interconnect grind upper chamber (40) and grind lower chamber (50), grind and be provided with row's bin (52) in lower chamber (50), grind the lateral wall of lower chamber (50) be provided with row's bin (51) of bin (52) intercommunication, a serial communication port, grind the intracavity and be provided with the grinding subassembly structure of any one of claims 1-10, wherein, first grinding subassembly is located grind upper chamber (40), the top of row's bin (52) is provided with and is used for holding second grinding subassembly's second grinds holds cavity (53), fixed grinding member (30) fixed mounting is in the bottom of second grinds holds cavity (53).

12. A grinding mechanism according to claim 11, characterized in that the periphery of the fixed grinding element (30) is provided with a plurality of limit parts (32), and the bottom of the second grinding accommodation cavity (53) is provided with limit ports (54) matching with the limit parts (32).

13. The grinding mechanism according to claim 11 or 12, wherein the first grinding assembly further comprises a stationary knife wall (41), a bottom of the stationary knife wall (41) is provided with stationary knife teeth (42), and the stationary knife wall (41) is arranged on an inner wall of the grinding upper cavity (40).

14. A kitchen waste disposer, characterized in that it comprises a grinding mechanism according to any of claims 11-13.