Blade assembly of garbage disposer and garbage disposer

Abstract

This utility model relates to a blade assembly and a garbage disposal unit. The blade assembly includes a blade that can be rotated by a drive motor and a blade head assembly disposed on the top of the blade. The blade head assembly includes a connector and a blade head body. The connector is rotatably connected to the blade via a vertically extending first pin. The blade head body is rotatably connected to the connector in a manner that allows it to deflect up and down relative to the connector. There are at least two blade head bodies arranged side by side. Each blade head body of the same blade head assembly is rotatably connected to the same connector and can independently deflect up and down relative to the connector.

Description

Technical Field

[0001] This utility model relates to the field of garbage disposers, and in particular to a blade assembly and a garbage disposer. Background Technology

[0002] Food waste disposers are used to break down food scraps into small particles that are safe to pass through drain pipes. A traditional food waste disposer consists of a food conveyor section, a motor section, and a grinding system located between the two sections. The grinding system is the core of the food waste disposer and typically includes a rotating blade and a fixed grinding ring. The blade has blades (grinding hammers) for cutting food waste, and it is mounted on a motor shaft. The motor drives the blade to rotate relative to the grinding ring, which usually has grinding holes and cutting teeth to further grind and pulverize the food waste thrown from the blade to the grinding ring. In existing garbage disposal unit blade assemblies, the blade head basically rotates around a fixed axis parallel to the normal direction of the blade disc in a plane parallel to the blade disc. In order to increase the utilization efficiency of the blade head assembly and improve the cutting and grinding capabilities of the blade disc assembly, a multi-degree-of-freedom rotation method for the blade head is also adopted. For example, the blade head assembly of the food waste disposer with application number CN201921807698.2 includes a base and a blade head. The base is bolted to the blade disc and can rotate around the fixed bolt. The base is also snapped to the blade head, so that the blade head can rotate 360° with the base in its plane and can also rotate within 0-90° around its snapping axis, realizing multi-degree-of-freedom rotation in planes perpendicular to the surface of the blade disc.

[0003] However, the blade assembly in the aforementioned patent application CN201921807698.2 still has some shortcomings: although the blade head adopts an up-and-down deflection connection structure, it improves the crushing capacity of waste materials to a certain extent, the installation structure of the blade head assembly occupies a considerable amount of space on the cutter disc, so the number of blade head assemblies installed is relatively limited. Therefore, how to increase the number of blade heads as much as possible without occupying too much space on the cutter disc to improve the crushing effect of waste materials has become a technical problem that urgently needs to be solved by those skilled in the art.

[0004] Therefore, the blade assembly of existing garbage disposals still needs further improvement. Utility Model Content

[0005] The first technical problem this invention aims to solve is to provide a cutter head assembly for a waste processor that, in light of the current state of the technology, can maximize the number of cutter heads without excessively occupying the installation space of the cutter head, thereby improving the crushing effect on waste materials.

[0006] The second technical problem to be solved by this utility model is to provide a garbage disposal unit that uses the above-mentioned blade assembly, in view of the current state of the prior art.

[0007] The technical solution adopted by this utility model to solve the first technical problem is as follows: a blade assembly for a garbage disposer, including a blade that can be rotated by a drive motor and a blade head assembly disposed on the top of the blade. The blade head assembly includes a connector and a blade head body. The connector is rotatably connected to the blade through a vertically extending first pin. The blade head body is rotatably connected to the connector in a manner that allows it to deflect up and down relative to the connector. There are at least two blade head bodies arranged side by side. Each blade head body of the same blade head assembly is rotatably connected to the same connector and can independently deflect up and down relative to the connector.

[0008] To achieve a rotatable connection between the cutter head, the connecting component, and the cutter head body, the connecting component 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 vertically extending and side-by-side vertical plates. The connecting plate is rotatably connected to the cutter head via a first pin. A horizontally extending second pin is provided between the two opposite vertical plates of the U-shaped plate. Each cutter head body of the same cutter head assembly is rotatably connected to the second pin.

[0009] As an improvement, the cutter head body has a connecting end for connecting to the connector and a free end away from the connector. The connecting ends of each cutter head body in the same cutter head assembly are located within the U-shaped plate and connected to the second pin. The portion (connecting end) of the cutter head body is built into the U-shaped plate, which limits the lateral sway of the cutter head body and improves cutting stability. All cutter head bodies share the same pin, reducing the number of parts and assembly complexity.

[0010] To further improve cutting and crushing effects, at least two adjacent cutter heads in the same cutter head assembly have different top heights. This height difference allows for more contact points between the cutter heads and the waste, achieving staggered cutting. The resulting stepped cutter head assembly also disrupts fiber entanglement paths, reducing clogging issues.

[0011] Considering the higher linear velocity at the outer edge of the cutter head, and the uneven pulverizing effect caused by the uniform height of traditional cutter heads, the top surface of each cutter head body in the same cutter head assembly gradually rises from the inside to the outside along the radial direction of the cutter head. This structural design of the cutter head body results in a higher outer edge cutter head, enhancing the cutting force in the high-speed zone and improving overall pulverizing uniformity.

[0012] The aforementioned "different top heights of two adjacent cutter heads" can refer to the top surfaces of the two cutter heads having different heights at any radial position, or it can refer to different heights only in certain areas. In a preferred embodiment, the highest areas of the top surfaces of two adjacent cutter heads within the same cutter head assembly have a height difference. Considering that a structural design where "the top surfaces of two cutter heads have different heights at any radial position" might lead to excessive instantaneous load on the drive motor and a surge in motor power consumption, it is preferable to form a corresponding height difference only at the top position of the outer edge of the cutter head body, with the remaining top surfaces remaining essentially flush, forming a continuous cutting surface.

[0013] Considering that it is difficult to simultaneously process waste of significantly different sizes (such as small fruit pits and large vegetable leaves) by setting a single-height cutting tooth at the free end of two adjacent cutter heads, the cutter head body has a connecting end for connecting to the connecting member and a free end away from the connecting member. The free end of the cutter head body has a cutting protrusion extending radially outward along the cutter disc. At least two adjacent cutter heads in the same cutter head assembly have cutting protrusions of different heights. Cutting protrusions of different heights can target waste of different sizes, achieving simultaneous coarse and fine crushing.

[0014] To further improve the cutting effect, the blade disc is located below the grinding ring of the waste disposer. The grinding ring also has inwardly protruding teeth, which form a cutting engagement with the cutting protrusions of the blade head body. The rotating cutting protrusions and the teeth of the grinding ring create a staggered shearing action, "cutting" the waste rather than "crushing" it, resulting in finer and more uniform particles.

[0015] To further improve crushing capacity, the cutter head assembly has at least two sets, arranged sequentially and at intervals along the circumference of the cutter disc. Multiple sets of cutters evenly distributed circumferentially expand the crushing area and improve processing efficiency. Furthermore, the multiple sets arranged at intervals along the circumference also better balance the load, improve the stability of the cutter disc assembly's rotation, and reduce overall machine vibration and noise.

[0016] The technical solution adopted by this utility model to solve the second technical problem is: a garbage disposer, including a blade assembly, wherein the blade assembly adopts the aforementioned blade assembly.

[0017] Compared with existing technologies, the advantages of this invention are as follows: Multiple cutter heads (at least two) share a single connector and are uniformly mounted on the cutter disc via a first pin on this connector. Compared to the traditional "one cutter head with one independent connecting base" model in existing technologies, this significantly reduces the number of independent mounting bases (connectors) required on the cutter disc, thus saving valuable cutter disc mounting surface space. Furthermore, thanks to the optimized space utilization, more cutter head assemblies can be deployed than in the traditional single-cutter-head, single-base scheme, while maintaining or limiting the cutter disc area. The entire cutter disc assembly has a denser density of cutting, impact, and grinding points. Based on this, the independent multi-degree-of-freedom motion capability of each cutter head is superimposed, resulting in a significant improvement in the frequency, intensity, and coverage of the impact, cutting, and grinding effects on the material per unit time, maximizing the crushing capacity of the cutter disc assembly within a limited space. Furthermore, although each cutter head body in this invention is connected to the same connector, it can independently deflect up and down relative to the connector, thus having stronger material adaptability and more efficient crushing ability (such as pulling fibrous materials and avoiding and impacting hard objects). Attached Figure Description

[0018] Figure 1 This is a vertical sectional perspective view of the garbage disposal unit according to an embodiment of the present utility model, omitting the outer shell of the grinding chamber of the garbage disposal unit;

[0019] Figure 2 This is a three-dimensional structural diagram of the cutter head assembly according to an embodiment of the present utility model, with the cutter head body in its initial state;

[0020] Figure 3 This is an exploded view of the cutter head assembly according to an embodiment of the present utility model;

[0021] Figure 4 This is a front view of the cutter head assembly according to an embodiment of the present utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the cutter head assembly according to an embodiment of the present utility model, with the cutter head body in a state of being deflected upward at a certain angle;

[0023] Figure 6 This is an axial sectional view of the cutter head assembly according to an embodiment of the present utility model, with the cutter head body in its initial state;

[0024] Figure 7 This is an axial cross-sectional view of the cutter head assembly according to an embodiment of the present utility model, with the cutter head body in a state of being deflected upward at a certain angle;

[0025] Figure 8 This is a three-dimensional structural diagram of a cutter disc assembly according to another embodiment of the present invention. The first cutting tooth of the uppermost cutting disc is inclined downward. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0028] Figures 1-8 This invention illustrates the blade assembly 2 of a garbage disposal unit and a preferred embodiment of the garbage disposal unit. The garbage disposal unit includes a housing, a grinding chamber 10, and a grinding device. The grinding device includes a drive motor 3, a grinding ring 26, a blade assembly 2, and a cutting disc assembly. The grinding chamber 10 includes an upper chamber 11 and a lower chamber that are interlocked vertically. The bottom of the upper chamber 11 is open, and the top of the lower chamber is open. The drive motor 3 is located below the lower chamber. The output shaft of the drive motor 3 passes through the bottom wall of the lower chamber and extends into the interior of the grinding chamber 10, connecting with the aforementioned blade assembly 2 and driving the blade assembly 2 to rotate. The blade assembly 2 includes a blade 20 and a cutter head assembly located on top of the blade 20 for crushing garbage materials. A cutting disc assembly is coaxially fixed below the blade 20 and can rotate with the blade 20. The cutting disc assembly can consist of one cutting disc 21 or at least two cutting discs 21 arranged at intervals in the vertical direction. Multiple first cutting teeth 211 are evenly distributed along the outer periphery of the cutting disc 21. The first cutting teeth 211 can be triangular serrations, and are substantially on the same plane as the main body of the cutting disc 21. Alternatively, they can be inclined upwards or downwards relative to the main body of the cutting disc 21. This embodiment of the cutting disc assembly shows three cutting discs 21 arranged vertically at intervals. Figure 8 As shown, some of the first cutting teeth 211 on the uppermost cutting disc 21 are inclined downwards. The first cutting teeth 211 of the cutting disc 21 can effectively cut fibrous waste materials passing downwards through the periphery of the cutting disc 20, ensuring the cutting effect.

[0029] See Figures 1-7The grinding ring 26 is positioned on the outside of the cutter head assembly 2. Specifically, the bottom edge of the grinding ring 26 is at approximately the same height as the cutter head 20. That is, the grinding ring 26 extends upwards by a relatively long distance relative to the top surface of the cutter head 20, thereby allowing the waste material struck and driven by the cutter head assembly 2 to return to the top of the cutter head 20. The outer peripheral wall of the cutter head 20 is basically in contact with the inner peripheral wall of the grinding chamber 10, thus ensuring the secure fixing of the grinding ring 26.

[0030] The lower part of the grinding ring 26 has vertically extending comb-like teeth 261 arranged sequentially along the circumference. A cutting groove 262 is formed between two adjacent comb-like teeth 261 on the grinding ring 26. One side edge of the cutting groove 262 extends vertically, while the other side edge extends obliquely from top to bottom in the opposite direction 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, while the rear side edge extends obliquely from top to bottom against the rotation direction of the cutter head 20, forming an angle of approximately 94° with the horizontal direction. This design of the cutting groove 262 can accelerate the discharge speed of waste materials during waste processing and reduce the probability of waste getting stuck in the cutting groove 262 of the grinding ring 26 when processing hard waste. The lower part of the grinding ring 26 also has inwardly protruding teeth 260, and there are multiple teeth 260 arranged at intervals along the circumference of the grinding ring 26. This embodiment shows five teeth 260.

[0031] See Figures 2-5 The cutter head assembly includes a disc-shaped cutter head 20 and at least two sets of cutter head assemblies disposed on its top (in this embodiment, two sets of symmetrically arranged cutter head assemblies are used as an example). The cutter head 20 is driven to rotate by a drive motor. Its outer periphery is provided with upwardly inclined flanged teeth 201 and radially inwardly recessed cutting notches 202. The flanged teeth 201 and the cutting notches 202 can achieve cutting engagement with the comb-shaped teeth 261 and convex teeth 260 on the outer grinding ring 26. A plurality of discharge holes 203 and pressure discharge holes 204 are opened on the surface of the cutter head 20. The number and opening size of the discharge holes 203 and pressure discharge holes 204 can be reasonably selected according to the actual volume and processing capacity of the grinding chamber 10.

[0032] The cutter head assembly includes a connector 23 and a cutter head body 24. The connector 23 includes a horizontally arranged connecting plate 231 and a sideways U-shaped plate 232. The U-shaped plate 232 includes two vertical plates spaced a certain distance apart in the horizontal direction. A first pin 251 vertically passes through the connecting plate 231 and is connected to the cutter head 20, thereby allowing the cutter head assembly to rotate with the first pin 251 as the rotation center line. A second pin 252 is provided between the two vertical plates of the U-shaped plate 232. The two ends of the second pin 252 are fixed relative to the vertical plates, that is, they cannot rotate around their own axis. Specifically, the vertical plates have connecting holes 2320 for the two ends of the second pin 252 to pass through, and the inner wall of the connecting holes 2320 is provided with radially inwardly protruding positioning ribs 2321. The outer peripheral wall of the second pin 252 is provided with an arc-shaped groove 2520 at the corresponding position. The shape of the arc-shaped groove 2520 is adapted to the positioning rib 2321. When the second pin 252 is inserted into the connecting hole 2320 of the U-shaped plate 232 along the axial direction, the positioning rib 2321 is engaged in the arc-shaped groove 2520, which can lock the second pin 252 from rotating.

[0033] The cutter head body 24 has a connecting end 241 for connecting to the connector 23 and a free end 242 that is away from the connector 23. This can also be understood as the free end 242 of the cutter head body 24 being closer to the grinding ring 26 than the connecting end 241. The connecting ends 241 of the cutter head body 24 are all located within the U-shaped plate 232 and connected to the second pin 252. In some embodiments, the connecting ends 241 of the cutter head body 24 have mounting holes 243 through which the second pin 252 passes. The mounting holes 243 are waist-shaped holes extending from the connecting ends 241 of the cutter head body 24 towards the side where its free end 242 is located. The inner wall of the mounting holes 243 has an arc-shaped rib 2430 protruding towards the free end 242 of the cutter head body 24 on the side adjacent to the connecting ends 241. This arc-shaped rib 2430 can be embedded in the arc-shaped groove 2520 of the second pin 252. As the cutter head body 24 deflects upward relative to the connecting member 23 from its initial state, the arc-shaped protrusion 2430 of the cutter head body 24 gradually disengages from the arc-shaped groove 2520, thereby driving the cutter head body 24 as a whole to move relative to the connecting member 23 toward the center of the cutter disc 20 (see details). Figure 7(M direction shown). The arc-shaped groove 2520 of the second pin 252 and the arc-shaped rib 2430 of the cutter body 24 together constitute the rotational connection structure between the cutter body 24 and the connector 23 in this embodiment. A cam effect is created by the (arc-shaped rib 2430 / arc-shaped groove 2520) fit between the waist-shaped hole and the second pin 252. When the cutter body 24 deflects upward from its initial state, the arc-shaped rib 2430 disengages from the arc-shaped groove 2520, pushing the rotation center of the cutter body 24 towards the center. During the downward deflection of the cutter body 24 back to its initial state, the arc-shaped rib 2430 re-enters the arc-shaped groove 2520, and the cutter body 24 resets and moves outward, approaching the grinding ring 26 as close as possible to improve cutting efficiency. The geometric fit between the waist-shaped hole and the second pin 252 replaces a complex transmission mechanism, significantly reducing the failure rate.

[0034] In this embodiment, the bottom wall of the cutter head body 24 is a plane. Under its own weight, the bottom wall of the cutter head body 24 is in contact with the top surface of the cutter disc 20. This state is the "initial state" mentioned above.

[0035] In this embodiment, when the cutter head body 24 deflects downward (deepening into the grinding area), its rotation axis actively moves away from the center of the cutter disc 20. This allows the cutter head body 24 to extend more fully into the vicinity of the grinding ring 26. Even though its installation position is relatively inward (to avoid interference from upward deflection), it can still form a tight and effective crushing fit with the protrusions 260 on the grinding ring 26. Under the action of centrifugal force, the path of the cutter head body 24 towards the grinding ring 26 is more direct, resulting in a greater impact force and significantly enhanced cutting, grinding, and crushing effects on waste materials (especially fibrous materials). When encountering large or hard waste impacts, the cutter head body 24 can deflect upward to buffer and avoid it. At this time, its rotation axis will move towards the center of the cutter disc 20. This adaptive dynamic inward-retracting structural 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, preventing hard collisions with the protrusions 260 of the externally fixed grinding ring 26 or jamming due to material blockage. This greatly reduces the possibility of jamming and improves operational reliability. The dynamic axis offset design between the cutter head body 24 and the connecting member 23 of this utility model realizes intelligent optimization of the working position (downward) and avoidance position (upward) of the cutter head body 24. When the cutter head 20 rotates, the cutter head body 24 can automatically adjust its effective working radius and posture according to the force. While maximizing the use of the crushing area space of the grinding ring 26, it also perfectly avoids the risk of interference, making the overall grinding efficiency of the cutter head assembly 2 high and the operation smooth.

[0036] Each cutter head assembly may have one cutter head body 24 or at least two cutter head bodies 24, wherein each cutter head body 24 is connected to the same connector 23, as shown in this embodiment, where two cutter head bodies 24 are arranged side by side. The connection end 241 of the two cutter head bodies 24 is located within the receiving space of the U-shaped plate 232 of the connector 23 and is connected to the same second pin 252. The mounting shaft holes 243 of the connection ends 241 of the two cutter head bodies 24 have basically the same structure and can both achieve radial offset during vertical deflection. Each cutter head body 24 can independently deflect vertically about the second pin 252 in a plane perpendicular to the surface of the cutter disc 20 (e.g., the deflection angle range is, for example, 0-90 degrees).

[0037] The operation of the cutter head assembly in this embodiment is as follows: The drive motor 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 is subjected to centrifugal force and the impact of the waste, and swings around the first pin 251 in the horizontal plane; each cutter head body 24 can independently deflect up and down around the second pin 252 under the impact of the waste. When encountering hard objects (such as bones), it avoids upward to reduce impact, and when encountering flexible objects (such as fibers), it presses downward to enhance pulling. Among them, the two parallel cutter head bodies 24 move independently, forming dense impact points and cutting lines, which significantly improves the initial crushing efficiency of the waste.

[0038] The free ends 242 of the two cutter heads 24 of the same cutter head assembly 2 are somewhat different. Specifically, the height distribution of the free ends 242 of the cutter head 24 is staggered to enhance the crushing gradient and reduce clogging. Figure 4 As shown, the overall height of the two side-by-side cutter heads 24 in the same cutter head assembly (from the top surface of the connecting end 241 to the top surface of the free end 242) gradually increases radially from the inside to the outside along the cutter head 20. Based on this, there is a certain height difference between the highest points of the top surfaces of the two cutter head bodies 24, thus forming a stepped crushing structure at the top surfaces of the two cutter head bodies 24 even in the initial state.

[0039] Both cutter head bodies 24 have a cutting protrusion 244 (e.g., a trapezoidal or triangular carbide tip) protruding radially outward along the cutter disc 20 on their free ends 242. In the same cutter head assembly, the cutting protrusions 244 of the two cutter head bodies 24 are staggered in the vertical direction. Specifically, the top heights of the cutting protrusions 244 of the two cutter head bodies 24 are different, that is, the cutting protrusions 244 of the cutter head bodies 24 also form a corresponding stepped crushing structure at the top position. When the cutter disc 20 rotates, the cutting protrusions 244 of the cutter head bodies 24 revolve with the cutter disc 20, and the cutting protrusions 244 of the cutter head bodies 24 form an interlaced shearing motion with the protruding teeth 260 and comb-like teeth 261 on the grinding ring 26, cutting the waste.

[0040] In this embodiment, multiple cutter heads 24 (at least two) share a single connector 23 and are uniformly rotatably mounted on the cutter disc 20 via a first pin 251 on the connector 23. Compared to the traditional mode of "one cutter head with one independent connecting base" in the prior art, this significantly reduces the number of independent mounting bases (connectors 23) required on the cutter disc 20, thus saving valuable mounting space on the cutter disc 20. On the other hand, thanks to the aforementioned optimization of space occupancy, more cutter head assemblies can be deployed than in the traditional single-cutter-head-single-base scheme, while the area of ​​the cutter disc 20 remains unchanged or is limited. The entire cutter disc assembly 2 has a denser density of cutting, impact, and grinding points. Based on this, the independent multi-degree-of-freedom motion capability of each cutter head 24 is superimposed, which greatly improves the frequency, intensity, and coverage of the impact, cutting, and grinding effects on the material per unit time, maximizing the crushing capacity of the cutter disc assembly 2 within a limited space. Furthermore, although each cutter head body 24 in this embodiment is connected to the same connector 23, it can independently deflect up and down relative to the connector 23, thus having stronger material adaptability and more efficient crushing ability (such as pulling on fibrous materials, avoiding and impacting hard objects).

Claims

1. A blade assembly for a garbage disposal unit, comprising a blade disc (20) rotatable by a drive motor (3) and a blade head assembly disposed on top of the blade disc (20), the blade head assembly comprising a connector (23) and a blade head body (24), the connector (23) being rotatably connected to the blade disc (20) via a vertically extending first pin (251), the blade head body (24) being rotatably connected to the connector (23) in a manner that allows it to deflect vertically relative to the connector (23), characterized in that: The cutter head body (24) has at least two arranged side by side, and each of the cutter head bodies (24) of the same cutter head assembly is rotatably connected to the same connector (23), and each can independently deflect up and down relative to the connector (23).

2. The blade assembly of the garbage disposer according to claim 1, characterized in that: The connector (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. The connecting plate (231) is rotatably connected to the cutter head (20) through the first pin (251). A horizontally extending second pin (252) is provided between the two opposite vertical plates of the U-shaped plate (232). Each cutter head body (24) of the same cutter head assembly is rotatably connected to the second pin (252).

3. The blade assembly of the garbage disposer according to claim 2, characterized in that: The cutter head body (24) has a connecting end (241) for connecting to the connector (23) and a free end (242) that is away from the connector (23). The connecting end (241) of each cutter head body (24) of the same cutter head assembly is located in the U-shaped plate (232) and connected to the second pin (252).

4. The blade assembly of the garbage disposer according to any one of claims 1 to 3, characterized in that: At least two adjacent cutter bodies (24) in the same cutter assembly have different top heights.

5. The blade assembly of the garbage disposer according to claim 4, characterized in that: The top surface of each cutter body (24) of the same cutter head assembly gradually rises from the inside to the outside along the radial direction of the cutter disc (20).

6. The blade assembly of the garbage disposer according to claim 5, characterized in that: The highest regions of the top surfaces of two adjacent cutter bodies (24) in the same cutter assembly have a height difference.

7. The blade assembly of the garbage disposer according to claim 1 or 2, characterized in that: The cutter head body (24) has a connecting end (241) for connecting to the connector (23) and a free end (242) away from the connector (23). The free end (242) of the cutter head body (24) has a cutting protrusion (244) extending radially outward along the cutter disc (20). The cutting protrusions (244) of at least two adjacent cutter head bodies (24) in the same cutter head assembly have different heights.

8. The blade assembly of the garbage disposer according to claim 7, characterized in that: The blade disc (20) is located below the grinding ring (26) of the garbage disposal unit. The grinding ring (26) also has inwardly protruding teeth (260), which form a cutting engagement with the cutting protrusion (244) of the blade body (24).

9. The blade assembly of the garbage disposer according to any one of claims 1 to 3, characterized in that: The cutter head assembly has at least two sets, which are arranged sequentially at intervals along the circumference of the cutter disc (20).

10. A garbage disposal unit, comprising a blade assembly, characterized in that: The blade assembly is the blade assembly of the garbage disposal unit according to any one of claims 1 to 9.

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