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 disc that can be rotated by a drive motor and a cutter head assembly disposed on top of the blade disc. The cutter head assembly includes a connector and a cutter head body. The connector is rotatably connected to the blade disc via a vertically extending first pin. The cutter head body is rotatably connected to the connector in a manner that allows it to deflect vertically relative to the connector. The rotational connection structure between the cutter head body and the connector is configured such that: during the upward deflection of the cutter head body relative to the connector from its initial state, the axis of rotation of the cutter head body relative to the connector moves towards the center of the blade disc; during the downward deflection of the cutter head body relative to the connector back to its initial state, the axis of rotation of the cutter head body relative to the connector moves away from the center of the blade disc. The advantages are: good crushing and cutting effect, and less prone to jamming.

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. Traditional food waste disposers include a food conveying section, a motor section, and a grinding system located between the two sections. The grinding system is the core component of a food waste disposer and typically includes a rotating blade and a fixed grinding ring. The blade is equipped with blades (grinding hammers) for cutting food waste, and is mounted on a motor shaft. The motor drives the blade to rotate relative to the grinding ring, which generally has grinding holes and cutting teeth to further grind and pulverize the food waste thrown from the blade to the grinding ring. Chinese utility model patents ZL201320009262.5 (authorization announcement number CN203184086U) entitled "Food Waste Disposer" and ZL201210110326.0 (authorization announcement number CN102631971B) entitled "Grinding Mechanism in a Food Waste Disposer" both disclose such grinding systems.

[0003] 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.

[0004] However, the blade assembly in the aforementioned patent application CN201921807698.2 still has some shortcomings: 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 outer grinding ring (usually equipped with cutting teeth) to achieve further crushing of the waste material. However, after the cutter head adopts a vertically deflectable method, in order to avoid the interference between the cutter head and the cutting teeth on the grinding ring, the rotation connection position of the cutter head relative to the blade needs to be set slightly inward (that is, closer to the center of the cutter head). This inevitably leads to the inability to form an effective crushing cooperation between the cutter head and the grinding ring, which in turn greatly affects the overall grinding effect of the cutter head assembly.

[0005] Therefore, the blade assembly of existing garbage disposals still needs further improvement. Utility Model Content

[0006] The first technical problem to be solved by this utility model is to provide a blade assembly for a garbage disposal unit that has a good crushing and cutting effect and is not prone to jamming, in light of the current state of the technology.

[0007] 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.

[0008] 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. The rotational connection structure between the blade head body and the connector is configured such that: during the process of the blade head body deflecting upward relative to the connector from its initial state, the axis of rotation of the blade head body relative to the connector moves toward the center of the blade. During the process of the blade head body deflecting downward relative to the connector back to its initial state, the axis of rotation of the blade head body relative to the connector moves away from the center of the blade.

[0009] To simplify the rotational connection structure between the cutter head body and the connector, the cutter head body is rotatably connected to the connector via a second pin. The second pin is fixed relative to the connector. The cutter head body has a connecting end for connecting to the connector and a free end away from the connector. A mounting shaft hole is provided on the connecting end of the cutter head body for the second pin to pass through. The mounting shaft hole is an oblong hole extending from the connecting end of the cutter head body to the side where its free end is located. An arc-shaped rib protruding towards the free end of the cutter head body is provided on the inner side wall of the mounting shaft hole near the connecting end of the cutter head body. An arc-shaped groove is provided on the outer peripheral wall of the second pin facing the center of the cutter disc for the arc-shaped rib to be embedded in. During the upward deflection of the cutter head body relative to the connector, 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 disc relative to the connector. The arc-shaped groove of the second pin and the arc-shaped rib of the cutter head body together constitute the rotational connection structure between the cutter head body and the connector. The design employs a cam effect created by the interlocking (arc-shaped rib / arc-shaped groove) between the oblong hole and the second pin. 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 towards the center. When the cutter head body deflects downwards, the arc-shaped rib re-enters the arc-shaped groove, causing the cutter head to return to its original position and move outwards, approaching the grinding ring as closely as possible, thus improving cutting efficiency. This geometric fit between the oblong hole and the second pin replaces a complex transmission mechanism, significantly reducing the failure rate.

[0010] To achieve a rotatable connection between the connector and the cutter head body, the connector 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, side-by-side vertical plates. The connecting plate is rotatably connected to the cutter head via a first pin. The two ends of the second pin are connected to the two opposite vertical plates of the U-shaped plate. The connecting end of the cutter head body is located inside the U-shaped plate and rotatably fitted onto the second pin. The portion of the cutter head body (the connecting end) is built into the U-shaped plate, which restricts the lateral sway of the cutter head body and improves cutting stability.

[0011] If the second pin rotates, the arc-shaped rib and the arc-shaped groove will misalign, resulting in a loss of motion control function. To fix the second pin relative to the connecting piece, connecting holes are provided on both vertical plates of the U-shaped plate. The inner circumferential wall of each connecting hole has a positioning rib. This positioning rib can be engaged in the arc-shaped groove of the second pin, thereby restricting the second pin from rotating around its own axis. After the positioning rib on the U-shaped plate is engaged in the arc-shaped groove of the second pin, the circumferential rotation of the second pin is restricted, ensuring the reliability of the fixation between the second pin and the connecting plate.

[0012] As an improvement, the bottom wall of the cutter head body is flat. The initial state is when the bottom wall of the cutter head body is in contact with the top surface of the cutter disc. In this initial state, the arc-shaped rib of the cutter head body can be engaged in the arc-shaped groove of the second pin. When the flat bottom wall of the cutter head is in contact with the cutter disc, the rib is fully embedded in the groove, forming a rigid connection, ensuring the ability of the cutter head body to crush waste materials during rotation along the first pin. Slippage is triggered under deflection force, which can take into account both the stability of conventional cutting and the adaptability to special working conditions (such as material blockage at the outer periphery of the cutter disc).

[0013] 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.

[0014] As an improvement, the cutter head is located below the grinding ring of the waste processor. The grinding ring also has inwardly protruding teeth that form a cutting engagement with the cutter head body. The cutter head body and the protruding teeth of the grinding ring form a staggered shearing structure, achieving secondary crushing, which is particularly effective at cutting tough waste such as fibers and fruit peels, reducing waste residue.

[0015] As an improvement, the outer periphery of the cutter head is further formed with upwardly inclined flanged teeth and radially inwardly recessed cutting notches. The flanged teeth guide edge waste upwards to the cutting area while providing good cutting ability. The cutting notches increase the edge cutting edge density, improving the pre-crushing ability of large pieces of waste and the tearing effect of fibrous waste.

[0016] As an improvement, the cutter head is also provided with a vertically penetrating discharge hole and a pressure relief hole. The discharge hole can accelerate the discharge of residue, reduce material congestion, and prevent excessive re-grinding of materials. The pressure relief hole can release the internal air pressure in the grinding chamber, reducing noise and vibration.

[0017] The technical solution adopted by this utility model to solve the second technical problem is: a garbage disposal unit, including a blade assembly, wherein the blade assembly adopts the above-mentioned blade assembly.

[0018] Compared with existing technologies, the advantages of this invention are as follows: When the cutter head body of this invention deflects downward (deepening into the grinding area), its rotation axis actively moves away from the center of the cutter disc. This allows the cutter head body to extend more fully into the vicinity of the grinding ring. Even if its installation position is relatively inward (to avoid interference from upward deflection), it can still form a tight and effective crushing fit with the protruding teeth or other teeth on the grinding ring. Under the action of centrifugal force, the path of the cutter head body towards the grinding ring is more direct, resulting in 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 can deflect upward to buffer and avoid them. At this time, its rotation axis moves towards the center of the cutter disc. This adaptive dynamic inward-retracting structural design ensures that within the maximum upward deflection angle range of the cutter head body, its outer edge trajectory is always within the safe zone, preventing hard collisions with the protruding teeth of the fixed grinding ring or jamming due to material blockage. This greatly reduces the possibility of machine jamming and improves operational reliability. The dynamic axis offset design between the cutter head body and the connecting parts of this utility model realizes intelligent optimization of the working position (downward) and avoidance position (upward) of the cutter head body. When the cutter head rotates, the cutter head body 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, it also perfectly avoids the risk of interference, making the overall grinding efficiency of the cutter head assembly high and the operation smooth. Attached Figure Description

[0019] 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;

[0020] 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;

[0021] Figure 3 This is an exploded view of the cutter head assembly according to an embodiment of the present utility model;

[0022] Figure 4 This is a front view of the cutter head assembly according to an embodiment of the present utility model;

[0023] 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;

[0024] 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;

[0025] 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;

[0026] 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

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] 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.

[0029] 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.

[0030] See Figure 1 and Figure 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.

[0031] 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.

[0032] 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 3. 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. Multiple 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.

[0033] See Figures 2-5The 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.

[0034] 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.

[0035] 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.

[0036] 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.

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 rotating connection structure between the cutter head body (24) and the connector (23) is configured such that: during the process of the cutter head body (24) deflecting upward relative to the connector (23) from the initial state, the axis of rotation of the cutter head body (24) relative to the connector (23) moves toward the center of the cutter disc (20); during the process of the cutter head body (24) deflecting downward relative to the connector (23) and returning to the initial state, the axis of rotation of the cutter head body (24) relative to the connector (23) moves away from the center of the cutter disc (20).

2. The blade assembly of the garbage disposer according to claim 1, characterized in that: The cutter head body (24) is rotatably connected to the connector (23) via a second pin (252), the second pin (252) being fixed relative to the connector (23). 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). A mounting shaft hole (243) for the second pin (252) to pass through is provided on the connecting end (241) of the cutter head body (24). The mounting shaft hole (243) is an oblong hole extending from the connecting end (241) of the cutter head body (24) toward the side where its free end (242) is located. The inner wall of the mounting shaft hole (243) has a side facing the cutter head body (24) adjacent to the connecting end (241) of the cutter head body (24). The free end (242) of the second pin (252) has an arc-shaped rib (2430) protruding from it. The outer peripheral wall of the second pin (252) has an arc-shaped groove (2520) on the side facing the center of the cutter head (20) for the arc-shaped rib (2430) to be embedded in. During the upward deflection of the cutter head body (24) relative to the connector (23), the arc-shaped rib (2430) gradually comes out of the arc-shaped groove (2520), thereby driving the cutter head body (24) to move towards the center of the cutter head (20) relative to the connector (23). The arc-shaped groove (2520) of the second pin (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 connector (23).

3. The blade assembly of the garbage disposer according to claim 2, 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). The two ends of the second pin (252) are connected to the two opposite vertical plates of the U-shaped plate (232). The connecting end (241) of the cutter head body (24) is located inside the U-shaped plate (232) and is rotatably sleeved on the second pin (252).

4. The blade assembly of the garbage disposer according to claim 3, characterized in that: The two vertical plates of the U-shaped plate (232) are provided with connecting holes (2320). The inner peripheral wall of the connecting hole (2320) has a positioning rib (2321). The positioning rib (2321) can be inserted into the arc-shaped groove (2520) of the second pin (252), thereby restricting the second pin (252) from rotating around its own axis.

5. The blade assembly of the garbage disposer according to claim 2, characterized in that: The bottom wall of the cutter head body (24) is a plane. The state in which the bottom wall of the cutter head body (24) is in contact with the top surface of the cutter disc (20) is the initial state. In this initial state, the arc-shaped protrusion (2430) of the cutter head body (24) can be inserted into the arc-shaped groove (2520) of the second pin (252).

6. The blade assembly of the garbage disposer according to any one of claims 1 to 5, 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).

7. The blade assembly of the garbage disposer according to any one of claims 1 to 5, characterized in that: The blade disc (20) is located below the grinding ring (26) of the garbage disposer. The grinding ring (26) also has inwardly protruding teeth (260), which form a cutting engagement with the blade body (24).

8. The blade assembly of the garbage disposer according to any one of claims 1 to 5, characterized in that: The outer periphery of the cutter head (20) is also provided with upwardly inclined flanging teeth (201) and radially inwardly recessed cutting notches (202).

9. The blade assembly of the garbage disposer according to any one of claims 1 to 5, characterized in that: The cutter head (20) is also provided with a discharge hole (203) that runs vertically through the cutter head and a pressure discharge hole (204).

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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