Grinding device and food waste disposer

Abstract

The present application relates to food waste disposer technical field, especially to a kind of grinding device and food waste disposer, grinding device includes motor, grinding ring, the cutterhead assembly being arranged in the inside of grinding ring, and there is gap between the outer circumferential surface of cutterhead assembly and the inner circumferential surface of grinding ring;Cutterhead assembly includes upper cutterhead and lower cutterhead respectively connected with motor output shaft, and upper cutterhead can be rotated under the drive of motor;Lower cutterhead is located in the lower part of upper cutterhead, and can be rotated and along the radial direction of rotation axis of the drive of motor.This application can improve the fineness of food waste grinding by setting double-layer cutterhead, and by setting lower cutterhead to be able to rotate and along the radial direction of rotation axis of the drive, a loosening force can be applied to food waste stuck between cutterhead assembly and grinding ring, so that the food waste stuck in gap falls, thereby reducing the probability of the occurrence of jamming.

Description

Technical Field

[0001] This invention relates to the field of food waste disposers, and more particularly to a grinding device and a food waste disposer. Background Technology

[0002] The grinding mechanism is the core component of a food waste disposer. It typically includes a fixed grinding ring and a rotating blade disc. Grinding hammers are located at the top of the blade disc. Food waste is ground by these hammers, then further ground and cut through the gap between the edge of the blade disc and the grinding ring before entering the drainage trough and being discharged into the sewer. Existing technologies often use a single-layer blade disc, resulting in insufficient grinding of food waste. The resulting particles are relatively large and easily get stuck between the edge of the blade disc and the grinding ring, causing the disposer to jam. Summary of the Invention

[0003] The purpose of this invention is to provide a grinding device and a food waste disposer to solve the technical problem in the prior art where food waste is not ground sufficiently and easily gets stuck between the edge of the blade and the grinding ring, causing the machine to jam.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A grinding apparatus includes a motor, a grinding ring, and a cutter disc assembly disposed inside the grinding ring. A gap exists between the outer peripheral surface of the cutter disc assembly and the inner peripheral surface of the grinding ring. The cutter disc assembly includes an upper cutter disc and a lower cutter disc, which are respectively connected to the output shaft of the motor. The upper cutter disc is rotatable under the drive of the motor. The lower cutter disc is located below the upper cutter disc and is rotatable and can move radially along the rotation axis under the drive of the motor.

[0006] As a preferred technical solution for the grinding device, the lower cutting disc has a mounting hole and a drive hole communicating with the mounting hole. The mounting hole is coaxially arranged with the lower cutting disc, and the diameter of the mounting hole is larger than the diameter of the output shaft of the motor. The width of the connection between the drive hole and the mounting hole is smaller than the diameter of the output shaft of the motor. The output shaft of the motor is located inside the mounting hole. A drive block is provided on the output shaft of the motor. The drive block is located inside the drive hole, and the width of the drive hole in the circumferential direction is larger than the width of the drive block in the circumferential direction. There is a gap between the outer end face of the drive block in the radial direction and the inner wall face of the drive hole in the radial direction. A support member for supporting the lower cutting disc is provided at the lower end of the lower cutting disc.

[0007] As a preferred technical solution for the grinding device, the gap between the outer end face of the drive block in the radial direction and the inner wall surface of the drive hole in the radial direction is equal to the gap between the outer peripheral surface of the lower blade disc and the inner peripheral surface of the grinding ring.

[0008] As a preferred technical solution for the grinding device, the cross-sectional shape of the driving hole is fan-shaped.

[0009] As a preferred technical solution for the grinding device, there are two driving holes, and the two driving holes are symmetrically arranged with respect to the mounting holes. Two driving blocks are provided on the output shaft of the motor, and the two driving blocks correspond one-to-one with the two driving holes.

[0010] As a preferred technical solution for the grinding device, the support member is a spring, a limiting member is provided on the output shaft of the motor, and the spring is disposed between the lower end face of the lower blade disc and the limiting member.

[0011] As a preferred technical solution for the grinding device, a ring of grinding protrusions is provided at intervals on the outer peripheral surface of the lower blade disc.

[0012] As a preferred technical solution for the grinding device, the lower blade disc is provided with weight reduction holes.

[0013] As a preferred technical solution for the grinding device, the outer peripheral surface of the upper blade disc is a smooth surface.

[0014] A food waste disposer includes a grinding device as described in any of the above embodiments.

[0015] The beneficial effects of this invention are:

[0016] This invention provides a grinding device, including a motor, a grinding ring, and a blade assembly disposed inside the grinding ring. A gap exists between the outer circumferential surface of the blade assembly and the inner circumferential surface of the grinding ring. The blade assembly includes an upper blade and a lower blade, each connected to the output shaft of the motor. The upper blade is capable of rotating under the drive of the motor. The lower blade is located below the upper blade and is capable of rotating and undulating radially along the shaft under the drive of the motor. By using a double-layer blade assembly, the fineness of food waste grinding can be improved. Furthermore, by enabling the lower blade to rotate and undulate radially along the shaft, a loosening force can be applied to food waste stuck between the blade assembly and the grinding ring, causing the stuck food waste to fall out of the gap, thereby reducing the probability of jamming. Attached Figure Description

[0017] Figure 1 This is a first-view structural schematic diagram of the grinding apparatus provided in an embodiment of the present invention;

[0018] Figure 2 This is a structural schematic diagram of the grinding device provided in an embodiment of the present invention from a second perspective;

[0019] Figure 3 This is a schematic diagram of the structure of the lower cutter head involved in the embodiments of the present invention;

[0020] Figure 4 This is a first-view structural schematic diagram of the cooperation between the lower cutter head and the output shaft of the motor in an embodiment of the present invention.

[0021] Figure 5 This is a second-view structural schematic diagram of the lower cutter head cooperating with the output shaft of the motor in an embodiment of the present invention.

[0022] In the picture:

[0023] 10. Grinding ring; 11. Grinding groove; 12. Grinding teeth; 20. Upper cutter head; 30. Lower cutter head; 31. Mounting hole; 32. Drive hole; 33. Grinding protrusion; 34. Weight reduction hole; 40. Output shaft; 41. Drive block; 42. Limiting component; 50. Spring; 60. Cutting tool; 70. Rotary shaft. Detailed Implementation

[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings, not all of them.

[0025] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0028] like Figures 1 to 5 As shown, this invention provides a grinding device, including a motor, a grinding ring 10, a blade assembly, and a grinding disc assembly. The blade assembly is disposed inside the grinding ring 10, and there is a gap between the outer circumferential surface of the blade assembly and the inner circumferential surface of the grinding ring 10. The blade assembly includes an upper blade 20 and a lower blade 30 located below the upper blade 20. Both the upper blade 20 and the lower blade 30 are connected to the output shaft 40 of the motor. The motor can drive the upper blade 20 and the lower blade 30 to rotate, and the lower blade 30 can move radially while rotating. By setting a double-layer blade, the fineness of food waste grinding can be improved. Furthermore, by setting the lower blade 30 to be able to rotate and move radially along the axis of rotation, a loosening force can be applied to the food waste stuck between the blade assembly and the grinding ring 10, thereby causing the stuck food waste to fall out of the gap and reducing the probability of jamming.

[0029] Specifically, see Figure 1 The upper blade disc 20 is coaxially and fixedly connected to the output shaft 40 of the motor, and the motor can drive the upper blade disc 20 to rotate. A blade 60 is provided on the upper blade disc 20. One end of the blade 60 is pivotally connected to the upper blade disc 20 via a rotating shaft 70, and the other end is provided with a cutting head. The blade 60 can rotate on the upper blade disc 20 via the rotating shaft 70. The cutting head can push food waste to rotate along the upper blade disc 20, thereby causing relative rotation with the grinding ring 10. This allows the grinding grooves 11 and grinding teeth 12 on the grinding ring 10 to grind the food waste. The ground small pieces of waste can fall through the gap between the upper blade disc 20 and the grinding ring 10 or get stuck in the gap. Preferably, the outer peripheral surface of the upper blade disc 20 is a smooth surface to reduce the probability of waste getting stuck between the upper blade disc 20 and the grinding ring 10.

[0030] See Figure 3 and Figure 4The lower cutter head 30 has a mounting hole 31 and a drive hole 32 communicating with the mounting hole 31. The mounting hole 31 is coaxially arranged with the lower cutter head 30, and the diameter of the mounting hole 31 is larger than the diameter of the motor output shaft 40. The width of the connection between the drive hole 32 and the mounting hole 31 is smaller than the diameter of the motor output shaft 40. The motor output shaft 40 is located inside the mounting hole 31. A drive block 41 is provided on the motor output shaft 40. The drive block 41 is located inside the drive hole 32, and the width of the drive hole 32 in the circumferential direction is larger than the width of the drive block 41 in the circumferential direction. There is a gap between the outer end face of the drive block 41 in the radial direction and the inner wall face of the drive hole 32 in the radial direction. A support member for supporting the lower cutter head 30 is provided at the lower end of the lower cutter head 30. When the motor's output shaft 40 rotates, the drive block 41 acts on the inner wall of the drive hole 32, thereby causing the lower blade disc 30 to rotate. Simultaneously, because the diameter of the mounting hole 31 is larger than the diameter of the motor's output shaft 40, and there is a gap between the outer end face of the drive block 41 in the radial direction and the inner wall face of the drive hole 32 in the radial direction, the lower blade disc 30 can also generate radial movement while rotating. This allows the lower blade disc 30 to further grind and loosen food waste stuck between the blade disc assembly and the grinding ring 10, causing the stuck food waste to fall out of the gap. Furthermore, when the motor is turned off, the lower blade disc 30 continues to rotate in the first direction due to inertia. When it rotates to the point where the rear wall face of the drive hole 32 in the first direction collides with the drive block 41, the lower blade disc 30 will reverse in the second direction due to the impact force, further grinding and loosening the food waste stuck in the gap, causing any remaining small amount of waste to fall out of the gap, further reducing the probability of jamming. Preferably, the gap between the outer end face of the drive block 41 in the radial direction and the inner wall face of the drive hole 32 in the radial direction is equal to the gap between the outer peripheral surface of the lower cutter head 30 and the inner peripheral surface of the grinding ring 10. This avoids excessive collision force with the grinding ring 10 when the lower cutter head 30 moves. In this embodiment, the cross-sectional shape of the drive hole 32 is fan-shaped, which can ensure the working area between the drive block 41 and the drive hole 32. Preferably, there are two drive holes 32, and the two drive holes 32 are symmetrically arranged with respect to the mounting hole 31. Correspondingly, two drive blocks 41 are provided on the output shaft 40 of the motor, and the two drive blocks 41 correspond one-to-one with the two drive holes 32. By providing two drive holes 32 and two drive blocks 41, the driving force on the lower cutter head 30 can be increased.

[0031] In this embodiment, see Figure 5The lower blade disc 30 is supported by a spring 50 at its lower end. A limit member 42 is provided on the output shaft 40 of the motor, and the spring 50 is positioned between the lower end face of the lower blade disc 30 and the limit member 42. By using a spring 50 as the support, the lower blade disc 30 can rotate and move radially while also moving axially, thereby generating an axial pulling force. This makes it easier for food waste stuck between the blade disc assembly and the grinding ring 10 to fall out of the gap.

[0032] Preferably, the outer peripheral surface of the lower blade disc 30 is provided with a ring of grinding protrusions 33, which can finely grind food waste stuck between the blade disc assembly and the grinding ring 10, and make it easier to clean the food waste stuck in the gaps.

[0033] Preferably, the lower cutter head 30 is provided with a weight reduction hole 34, which can reduce the weight of the lower cutter head 30, making it easier for the motor to drive the upper cutter head 20 and for the spring 50 to support the upper cutter head 20.

[0034] The present invention also provides a food waste disposer, including the grinding device described above.

[0035] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A grinding apparatus, comprising a motor, a grinding ring (10), and a cutter disc assembly disposed inside the grinding ring (10), characterized in that, There is a gap between the outer peripheral surface of the cutter head assembly and the inner peripheral surface of the grinding ring (10); the cutter head assembly includes an upper cutter head (20) and a lower cutter head (30) respectively connected to the motor output shaft (40), the upper cutter head (20) can rotate under the drive of the motor; the lower cutter head (30) is located below the upper cutter head (20) and can rotate and move radially along the shaft under the drive of the motor; The lower cutter head (30) has a mounting hole (31) and a drive hole (32) communicating with the mounting hole (31). The mounting hole (31) is coaxially arranged with the lower cutter head (30), and the diameter of the mounting hole (31) is larger than the diameter of the motor output shaft (40). The width of the connection between the drive hole (32) and the mounting hole (31) is smaller than the diameter of the motor output shaft (40). The motor output shaft (40) is located in the mounting hole (31). Inside, a drive block (41) is provided on the motor output shaft (40). The drive block (41) is located inside the drive hole (32), and the width of the drive hole (32) in the circumferential direction is greater than the width of the drive block (41) in the circumferential direction. There is a gap between the outer end face of the drive block (41) in the radial direction and the inner wall face of the drive hole (32) in the radial direction. The lower end of the lower cutter head (30) is provided with a support member for supporting the lower cutter head (30).

2. The grinding apparatus according to claim 1, characterized in that, The gap between the outer end face of the drive block (41) in the radial direction and the inner wall face of the drive hole (32) in the radial direction is equal to the gap between the outer peripheral surface of the lower blade disc (30) and the inner peripheral surface of the grinding ring (10).

3. The grinding apparatus according to claim 2, characterized in that, The cross-sectional shape of the driving hole (32) is fan-shaped.

4. The grinding apparatus according to any one of claims 1-3, characterized in that, There are two drive holes (32), and the two drive holes (32) are symmetrically arranged with respect to the mounting hole (31). Two drive blocks (41) are provided on the motor output shaft (40), and the two drive blocks (41) correspond one-to-one with the two drive holes (32).

5. The grinding apparatus according to any one of claims 1-3, characterized in that, The support is a spring (50), and a limiting member (42) is provided on the motor output shaft (40). The spring (50) is located between the lower end face of the lower cutter head (30) and the limiting member (42).

6. The grinding apparatus according to any one of claims 1-3, characterized in that, The outer circumferential surface of the lower blade disc (30) is provided with a ring of grinding protrusions (33) at intervals.

7. The grinding apparatus according to any one of claims 1-3, characterized in that, The lower cutter head (30) is provided with weight reduction holes (34).

8. The grinding apparatus according to any one of claims 1-3, characterized in that, The outer peripheral surface of the upper cutter head (20) is a smooth surface.

9. A food waste disposer, characterized in that, Includes the grinding apparatus as described in any one of claims 1-8.

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