Cutting mechanism for kitchen waste disposal

Abstract

The utility model discloses a kind of cutting mechanisms for kitchen garbage treatment, the cutting mechanism for kitchen garbage treatment includes: cavity, stirring assembly and fixed tool bit, stirring assembly is movably connected to the geometric center of cavity bottom wall;Fixed tool bit is installed in the inner surface of cavity lateral wall, and, fixed tool bit can be avoided with stirring assembly cooperation;Stirring assembly includes shaft and stirring piece;Stirring piece is arranged in the side surface of shaft;Fixed tool bit is provided with connecting portion, first cutting part and second cutting part, connecting portion is fixedly installed in the inner surface of cavity lateral wall;First cutting part and second cutting part are mutually parallel and arranged in the top and bottom of connecting portion two ends;And, first cutting part and second cutting part are respectively avoided with stirring piece cooperation.This cutting mechanism for kitchen garbage treatment of the utility model cooperates through stirring assembly and fixed tool bit, when stirring piece throws garbage, first, second cutting part of fixed tool bit intercepts cutting from top and bottom two ends.

Description

Technical Field

[0001] This utility model relates to the field of kitchen waste processor technology, and in particular to a cutting mechanism for kitchen waste processing. Background Technology

[0002] A food waste disposer (also known as a kitchen waste processor or food waste grinder) is an electric device installed under the kitchen sink or used independently. It grinds food waste (such as food scraps, fruit peels, and vegetable leaves) into small particles, which are then flushed down the drain, allowing for immediate waste disposal and reducing the burden of household waste storage and sorting. The core functions of existing food waste disposers include, but are not limited to, physically grinding food waste (such as leftovers, bones, fruit pits, and eggshells) into particles typically less than 5mm in diameter, which are then flushed down the drain, preventing waste accumulation and odors. Its functional structure and working principle include: a cutting system: using a high-speed rotating blade or blunt object (such as hammers or grinding rings) to impact and shear the waste; water flushing: water flow assists in flushing the ground particles to prevent pipe blockage; and a motor drive: typically equipped with a high-torque permanent magnet motor or AC motor.

[0003] The cutting mechanism of a food waste disposer is its core functional component, directly affecting processing efficiency, energy consumption, noise, and applicability. In recent years, with the advancement of waste sorting policies and increasing consumer demand, cutting mechanism technology has undergone significant iterations, but several technical bottlenecks still exist. Current mainstream products mostly adopt a combination structure of a grinding disc and a grinding ring, using a high-speed rotating blunt object (such as hammers or grinding teeth) to squeeze and rub the waste, suitable for soft food waste (such as vegetable leaves and fruit peels). However, existing single-blade cutting mechanisms suffer from technical problems such as missed cutting, inefficiency, and easy wear in food waste processing. Utility Model Content

[0004] Therefore, it is necessary to provide a cutting mechanism for food waste processing to address the technical problems of existing cutting mechanisms for food waste processing, such as easy missed cuts, easy wear and tear, and low efficiency.

[0005] A cutting mechanism for food waste treatment includes a cavity for accommodating food waste to be treated, a stirring assembly for stirring and cutting, and a fixed cutter head for assisting cutting. The stirring assembly is movably connected to the geometric center of the bottom wall of the cavity; the fixed cutter head is installed on the inner surface of the side wall of the cavity, and the fixed cutter head can avoid contact with the stirring assembly.

[0006] The stirring assembly includes a rotating shaft and a stirring element. The rotating shaft is rotatably mounted at the geometric center of the bottom wall of the cavity. The stirring element is disposed on the side surface of the rotating shaft, so that the stirring element can rotate relative to the cavity via the rotating shaft.

[0007] The fixed cutter head is provided with a connecting part, a first cutting part and a second cutting part. The connecting part is fixedly installed on the inner surface of the side wall of the cavity. The first cutting part and the second cutting part are arranged parallel to each other at the top and bottom ends of the connecting part. Furthermore, the first cutting part and the second cutting part respectively cooperate with and avoid the stirring component.

[0008] Furthermore, the connecting part is configured as a thin plate structure that fits tightly against the cavity wall. Correspondingly, the cavity wall is provided with a groove. When the fixed cutter head is installed in place, the connecting part is inserted into the groove, thereby forming a smooth transition flat wall surface with the connecting part and the inner wall of the cavity.

[0009] In one embodiment, the stirring component includes a first stirring part and a second stirring part, both of which are disposed on the side surface of the rotating shaft. In particular, the first stirring part and the second stirring part are disposed on the top and bottom sides of the rotating shaft, respectively.

[0010] In one embodiment, the first cutting part and the first stirring part are in a collapsible arrangement, so that the first stirring part can avoid each other during the rotation of the first cutting part.

[0011] In one embodiment, the second cutting part is disposed between the first stirring part and the second stirring part, thereby achieving a clearance fit between the second cutting part and the stirring element.

[0012] In one embodiment, the first stirring part is provided with a relief groove, which is disposed through the side edge of the first cutting part corresponding to the first cutting part; correspondingly, the first cutting part and the relief groove are engaged.

[0013] In one embodiment, the first cutting part is configured as a plate-like structure, and the first cutting part is laid flat along the plane perpendicular to the axis of rotation.

[0014] In one embodiment, the first cutting part is provided with a first blade and a first hooking part; the first blade is provided on the opposite two sides of the first cutting part; the first hooking part is provided on the end face of the first cutting part facing the first stirring part.

[0015] In one embodiment, the middle part of the first cutting edge is provided with a concave structure.

[0016] In one embodiment, the first hook portion described above is provided with a pointed tip structure.

[0017] In one embodiment, the second cutting portion is configured as a plate-like structure, and the second cutting portion is laid flat parallel to the first cutting portion, with the second cutting portion arranged in parallel with the first cutting portion.

[0018] In one embodiment, the second cutting portion is provided with a second blade and a second hook portion; the second blade is provided on the opposite two sides of the second cutting portion; the second hook portion is provided on the end face of the second blade facing the rotating shaft.

[0019] In one embodiment, the second cutting edge described above is configured as a serrated structure.

[0020] In one embodiment, the two ends of the second hook portion are configured as pointed structures.

[0021] In one embodiment, the first stirring part is configured as a plate-like structure, with one edge of the first stirring part connected to the rotating shaft, and the other edge of the first stirring part extending a predetermined distance away from the rotating shaft.

[0022] In one embodiment, the first stirring section described above deflects at a predetermined angle along the side wall of the rotating shaft relative to the central axis of the rotating shaft, and forms a curved stirring structure;

[0023] In one embodiment, the second stirring part is configured as a curved arm structure, with one end of the second stirring part connected to the rotating shaft, and the other end of the second stirring part facing away from the rotating shaft and deflected at a preset angle relative to the diameter direction of the rotating shaft and extending a preset distance, thereby forming a stirring curved arm.

[0024] The aforementioned cutting mechanism for food waste processing:

[0025] Through the coordinated action of the mixing component (moving blade) and the fixed blade (stationary blade), when the mixing component throws up the waste, the first and second cutting parts of the fixed blade intercept and cut from the top and bottom ends, forming a three-dimensional cutting network of "moving blade throwing + stationary blade interception", which greatly improves the contact probability.

[0026] The fixed blade and the mixing component are precisely aligned to avoid wear or jamming caused by collision between moving and stationary blades in traditional designs, thus extending service life.

[0027] The fixed blade has two cutting sections (parallel distribution at the top and bottom) that can process waste of different particle sizes in layers: large pieces of waste are first intercepted and crushed by the upper first cutting section, and small particles are then cut a second time by the lower second cutting section, avoiding overload or missed cutting of traditional single-layer blades. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the cutting mechanism for food waste treatment in one embodiment;

[0029] Figure 2 This is a partial structural schematic diagram of a cutting mechanism for food waste treatment in one embodiment;

[0030] Figure 3This is a partial structural schematic diagram of a cutting mechanism for food waste treatment in one embodiment. Detailed Implementation

[0031] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0037] Please see Figures 1 to 3This utility model discloses a cutting mechanism 1 for processing kitchen waste. The cutting mechanism 1 for processing kitchen waste includes a cavity 10 for accommodating kitchen waste to be processed, a stirring assembly 20 for stirring and cutting, and a fixed cutter head 30 for assisting cutting. The stirring assembly 20 is movably connected to the geometric center of the bottom wall of the cavity 10, so that the stirring assembly 20 can rotate relative to the cavity 10 to realize the stirring and cutting functions. The fixed cutter head 30 is installed on the inner surface of the side wall of the cavity 10, and the fixed cutter head 30 can avoid and cooperate with the stirring assembly 20, so that the fixed cutter head 30 can intercept the waste stirred by the stirring assembly 20 and passively cut and crush it. The mixing assembly 20 includes a rotating shaft 21 and a mixing element. The rotating shaft 21 is rotatably mounted at the geometric center of the bottom wall of the cavity 10. The mixing element is disposed on the side surface of the rotating shaft 21, so that the mixing element can rotate relative to the cavity 10 via the rotating shaft 21 to stir and agitate the waste inside the cavity 10. Based on this, the fixed cutter head 30 is provided with a connecting part 31, a first cutting part 32, and a second cutting part 33. The connecting part 31 is fixedly mounted on the inner surface of the side wall of the cavity 10. The first cutting part 32 and the second cutting part 33 are arranged parallel to each other at the top and bottom ends of the connecting part 31. Furthermore, the first cutting part 32 and the second cutting part 33 cooperate with the mixing element to avoid interference or collision between the mixing element and the first cutting part 32 and the second cutting part 33 during the mixing process. At the same time, the first cutting part 32, together with the second cutting part 33, can assist in cutting and crushing the kitchen waste agitated and thrown up by the mixing element, thereby greatly improving the processing efficiency of kitchen waste and reducing the output particle size of the processed material. Traditional food waste disposers typically rely solely on rotating blades for unidirectional cutting, leaving waste unbroken as it rotates with the water flow. In contrast, the cutting mechanism 1 of this invention utilizes a mixing assembly 20 (moving blade) and a fixed blade 30 (stationary blade) working in tandem. When the mixing assembly throws the waste, the first and second cutting sections 33 of the fixed blade 30 intercept and cut it from both ends, forming a three-dimensional cutting network of "moving blade throwing + stationary blade interception," significantly increasing the contact probability. Simultaneously, the fixed blade 30 and the mixing assembly precisely avoid collisions, preventing wear or jamming caused by collisions between moving and stationary blades in traditional designs, thus extending service life. Furthermore, the dual cutting sections (parallel distribution at the top and bottom) of the fixed blade 30 allow for layered processing of waste of different particle sizes: large pieces are first intercepted and broken by the upper first cutting section 32, while smaller particles are then cut a second time by the lower second cutting section 33, avoiding overload or missed cuts common with traditional single-layer blades.

[0038] Furthermore, the connecting part 31 is configured as a thin plate structure that fits tightly against the wall of the cavity 10. Correspondingly, the wall of the cavity 10 is provided with a groove. When the fixed blade 30 is installed in place, the connecting part 31 is fitted into the groove, thereby forming a smooth transition flat wall surface with the inner wall of the cavity 10. In existing similar products, there is a height difference between the connection part of the fixed blade and the cavity wall, which easily forms a groove. In actual use, it is easy to accumulate garbage and debris, causing residue and making it difficult to clean. Compared with the existing solution, the above-mentioned setting of this utility model can specifically improve the smoothness of the inner surface of the cavity and solve the problems of garbage residue and difficult cleaning of the cavity wall.

[0039] Furthermore, the stirring component includes a first stirring part 22 and a second stirring part 23, both of which are disposed on the side surface of the rotating shaft 21. Specifically, the first stirring part 22 and the second stirring part 23 are respectively disposed on the top and bottom sides of the rotating shaft 21, thereby forming a stirring area of ​​a predetermined range in the height direction of the rotating shaft 21. Based on this, in one embodiment, the first cutting part 32 and the first stirring part 22 are in a collapsible fit, so that the first stirring part 22 can avoid each other with the first cutting part 32 during rotation; the second cutting part 33 is disposed between the first stirring part 22 and the second stirring part 23, thereby achieving a collapsible fit between the second cutting part 33 and the stirring component.

[0040] Furthermore, in one embodiment, the first stirring part 22 is provided with a relief groove a, which is disposed through the side edge of the first cutting part 32 corresponding to the first stirring part 22; accordingly, the first cutting part 32 is correspondingly engaged with the relief groove a, so that when the first stirring part 22 rotates, the first cutting part 32 can avoid the first stirring part 22 through the relief groove a.

[0041] Furthermore, the first cutting part 32 is configured as a plate-like structure, and the first cutting part 32 is laid flat along the plane perpendicular to the rotation axis 21, thereby enhancing the cutting and crushing effect of the first cutting part 32. In one embodiment, specifically, the first cutting part 32 is provided with a first blade 321 and a first hook part 322; the first blade 321 is provided on the opposite two side edges of the first cutting part 32, and the two side first blades 321 form a bidirectional cutting edge, which can efficiently cut regardless of whether the stirring part rotates forward or backward; the first hook part 322 is provided on the end face of the first cutting part 32 facing the first stirring part 22.

[0042] Furthermore, in one embodiment, the first cutting edge 321 has a concave structure in the middle, thereby forming a local stress concentration point, which can further enhance the cutting ability and make it easier to cut hard objects such as bones and fruit pits; in another embodiment, the first hooking part 322 is provided with a pointed structure, which can penetrate fibrous waste, hook the fibrous material and pull it toward the cutting edge, avoiding the "blade wrapping" problem of traditional knives.

[0043] Furthermore, the second cutting section 33 is configured as a plate-like structure and is laid flat parallel to the first cutting section 32. The second cutting section 33 and the first cutting section 32 are arranged in parallel to form an upper and lower double-layer cutting mesh. After the upper first cutting section 32 coarsely crushes the material, the lower serrated blade performs a "tearing" fine cut on soft waste (such as peel), resulting in a more uniform output particle size. In one embodiment, specifically, the second cutting section 33 is provided with a second blade 331 and a second hooking section 332; the second blade 331 is provided on the opposite two sides of the second cutting section 33; the second hooking section 332 is provided on the end face of the second blade 331 facing the rotating shaft 21.

[0044] Furthermore, in one embodiment, the second blade 331 is configured as a serrated structure, which provides high-frequency shearing action and increases friction to prevent wet waste from slipping; in another embodiment, the two ends of the second hook 332 are configured as pointed structures, and when the waste is thrown towards the edge of the cavity 10 during rotation, the pointed hook will "anchor" the material and guide it to the serrated blade to avoid rebound.

[0045] Furthermore, the first stirring part 22 is configured as a plate-shaped structure, with one edge of the first stirring part 22 connected to the rotating shaft 21, and the other edge of the first stirring part 22 extending a predetermined distance away from the rotating shaft 21.

[0046] Furthermore, the first stirring section 22 deflects at a preset angle along the side wall of the rotating shaft 21 relative to the central axis of the rotating shaft 21, forming a curved stirring structure;

[0047] Furthermore, the second stirring part 23 is configured as a curved arm structure. One end of the second stirring part 23 is connected to the rotating shaft 21, and the other end of the second stirring part 23 faces away from the rotating shaft 21 and extends a preset distance at a preset angle relative to the diameter direction of the rotating shaft 21, thereby forming a stirring curved arm.

[0048] In summary, the cutting mechanism for kitchen waste treatment disclosed in this utility model works in concert with the stirring component (moving blade) and the fixed blade (stationary blade). When the stirring component throws the waste up, the first and second cutting parts of the fixed blade intercept and cut it from both the top and bottom, forming a three-dimensional cutting network of "moving blade throwing + stationary blade interception", which greatly improves the contact probability. At the same time, the fixed blade and the stirring component precisely avoid each other, avoiding the wear or jamming problems caused by the collision between the moving and stationary blades in traditional designs, thus extending the service life. In addition, the double cutting parts (parallel distribution at the top and bottom) of the fixed blade can process waste of different particle sizes in layers: large pieces of waste are first intercepted and broken by the upper first cutting part, and small particles are then cut a second time by the lower second cutting part, avoiding the overload or missed cutting of traditional single-layer blades.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cutting mechanism for processing kitchen waste, characterized in that, include: A cavity for containing kitchen waste to be processed, a stirring assembly for stirring and cutting, and a fixed cutting head for assisting cutting. The stirring assembly is movably connected to the geometric center of the bottom wall of the cavity. The fixed blade is installed on the inner surface of the cavity side wall, and the fixed blade can avoid contact with the stirring assembly; The stirring assembly includes a rotating shaft and a stirring element. The rotating shaft is rotatably mounted at the geometric center of the bottom wall of the cavity. The stirring element is disposed on the side surface of the rotating shaft, so that the stirring element can rotate relative to the cavity via the rotating shaft. The fixed cutter head is provided with a connecting part, a first cutting part and a second cutting part. The connecting part is fixedly installed on the inner surface of the side wall of the cavity. The first cutting part and the second cutting part are arranged parallel to each other at the top and bottom ends of the connecting part. Furthermore, the first cutting part and the second cutting part respectively cooperate with and avoid the stirring component.

2. The cutting mechanism for kitchen waste treatment according to claim 1, characterized in that, The connecting part is designed as a thin plate structure that fits tightly against the cavity wall. Correspondingly, the cavity wall has a groove. When the fixed cutter head is installed in place, the connecting part is inserted into the groove, so that the connecting part and the inner wall of the cavity form a smooth transition flat wall surface.

3. The cutting mechanism for kitchen waste treatment according to claim 1, characterized in that, The mixing component includes a first mixing part and a second mixing part, both of which are disposed on the side surface of the rotating shaft. In particular, the first mixing part and the second mixing part are disposed on the top and bottom sides of the rotating shaft, respectively.

4. The cutting mechanism for kitchen waste treatment according to claim 3, characterized in that, The first cutting part and the first stirring part are fitted together in a way that avoids each other, so that the first stirring part can avoid each other during the rotation of the first cutting part.

5. The cutting mechanism for kitchen waste treatment according to claim 4, characterized in that, The second cutting part is disposed between the first stirring part and the second stirring part, thereby achieving a clearance fit between the second cutting part and the stirring component.

6. The cutting mechanism for kitchen waste treatment according to claim 5, characterized in that, The first stirring part is provided with a clearance groove, which is disposed through the first cutting part at the side edge of the first stirring part; correspondingly, the first cutting part and the clearance groove are matched.

7. The cutting mechanism for kitchen waste treatment according to claim 6, characterized in that, The first cutting part is configured as a plate-like structure, and the first cutting part is laid flat along the plane perpendicular to the axis of rotation.

8. The cutting mechanism for kitchen waste treatment according to claim 7, characterized in that, The first cutting part is provided with a first blade and a first hooking part; the first blade is provided on the opposite two sides of the first cutting part; the first hooking part is provided on the end face of the first cutting part facing the first stirring part.

9. The cutting mechanism for kitchen waste treatment according to claim 8, characterized in that, The second cutting part is configured as a plate-like structure, and the second cutting part is laid flat parallel to the first cutting part. The second cutting part and the first cutting part are arranged in parallel.

10. The cutting mechanism for kitchen waste treatment according to claim 9, characterized in that, The second cutting part is provided with a second cutting edge and a second hooking part; the second cutting edge is provided on the opposite two sides of the second cutting part; the second hooking part is provided on the end face of the second cutting edge facing the rotating shaft.

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