Kitchen waste crushing treatment device capable of preventing cutter from being stuck

Abstract

The kitchen waste crushing treatment device is characterized in that upper cutting blades are arranged on the two circumferential sides of a barrel connecting piece respectively, each upper cutting blade is sequentially provided with a point position a, a point position b, a point position c and a point position d from outside to inside, and the point position d to the point position c extend in the direction away from the center of a rotating shaft body to form a section cd; the point c to the point b extend towards the center of the rotating shaft body to form a bc section, the point b to the point a extend towards the center of the rotating shaft body to form an ab section, and the cd section is provided with at least one arc-shaped cutting surface. When the movable cutter assembly rotates, centripetal force is applied to clustered or caked kitchen garbage through the arc-shaped cutting face of the upper cutting blade, and when the kitchen garbage far away from the rotating shaft body cannot be crushed, the kitchen garbage moves towards the rotating shaft body under the action of the centripetal force, so that the force arm is reduced, the cutting force is improved, and the crushing effect is improved; and the phenomenon that the cutter is stuck is avoided.

Description

Technical Field

[0001] This utility model relates to the field of kitchen waste processor technology, and in particular to a kitchen waste crushing and processing device that prevents the blades from jamming. Background Technology

[0002] Food waste disposers typically use rotating moving blades and fixed blades on the bin wall to cut and pulverize food waste. During operation, the food waste is heated and dried, losing moisture. Some food waste tends to clump or clump together. These clumps or lumps have a certain hardness and strength. During the rotation and mixing process, the centripetal force is weaker at the end furthest from the rotating axis, causing these clumps or lumps to easily get stuck between the moving and fixed blades. Current solutions involve reversing the drive motor to free them. However, for food waste with high starch and fiber content, the clumps or lumps have significant hardness and strength. When stuck, even reversing the motor is insufficient to free them. In such cases, the food waste disposer can only report an error and stop, requiring manual intervention, which is complex and inconvenient.

[0003] Traditional fixed blades include straight blades and serrated blades. With straight blades, the force on food waste is concentrated in one direction during cutting. Because the force direction and the line connecting the cutting point to the axis are nearly perpendicular, the centripetal force is small, and the food waste doesn't move towards the axis of rotation. This dispersed force results in poor crushing of hard and tough clumps or blocks. Furthermore, the dispersed force on the blade leads to a large resultant force, increasing the load on the motor. Serrated blades, on the other hand, have a longer blade length and different force directions at different points. While this improves crushing efficiency, clumps or blocks are prone to getting stuck or caught between the teeth. If the stuck or caught object is strong, the motor current will suddenly increase, potentially causing insufficient torque and jamming of the motor and moving blades, resulting in a shutdown. Therefore, improvements are necessary. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a kitchen waste crushing and processing device that prevents blade jamming, thereby improving the crushing effect and reducing the motor load.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a kitchen waste crushing and processing device to prevent blade jamming, comprising a barrel body, a moving blade assembly, a rotating shaft, and at least one fixed blade. The middle part of the rotating shaft is rotatably mounted on the bottom of the barrel body, the moving blade assembly is fixedly mounted on the upper part of the rotating shaft, and the fixed blade is fixedly mounted on the inner wall of the barrel body. The fixed blade includes a barrel connecting piece and an upper cutting blade. The barrel connecting piece is fixedly mounted on the inner wall of the barrel body, the outer end of the upper cutting blade is formed in the barrel connecting piece, and the inner end of the upper cutting blade extends toward the rotating shaft. The circumferential width D1 of the outer end of the upper cutting blade is greater than the circumferential width D2 of the inner end of the barrel connecting piece. The upper cutting blade is provided on both sides of the circumferential direction. The upper cutting blade is provided with points a, b, c and d from the outside to the inside. Point d to point c extends away from the center of the rotating shaft to form segment cd. Point c to point b extends towards the center of the rotating shaft to form segment bc. Point b to point a extends towards the center of the rotating shaft to form segment ab. Segment cd is provided with at least one arc-shaped cutting surface.

[0006] In a further technical solution, the clamping angle between the line of action L1 of the force direction of the upper cutting blade during crushing and cutting and the line L2 connecting the force point to the rotating shaft is α; when the force point is at point c, α is the minimum value, and when the force point is at point d, α is the maximum value and α is 90°.

[0007] In a further technical solution, an e-point is provided at the inner end of the upper cutting blade. The e-point is located between the rotating shaft and the d-point, and the e-point and the d-point form a de segment. The de segment is a straight line segment, and the cd segment is tangent to the de segment.

[0008] In a further technical solution, the lengths of segments ab and bc are both less than the length of segment cd.

[0009] In a further technical solution, the lengths of segments ab and bc are 2–5 mm, respectively.

[0010] In a further technical solution, the fixed blade is also provided with a blade connecting piece and a lower cutting blade. The upper end of the blade connecting piece is formed on the inner end of the upper cutting blade, the outer end of the lower cutting blade is formed on the lower end of the blade connecting piece, and the inner end of the lower cutting blade extends toward the rotating shaft.

[0011] In a further technical solution, the blade connecting piece is inclined towards the rotating shaft from top to bottom, and the clamping angle between the blade connecting piece and the upper and lower cutting blades is 60-80°.

[0012] In a further technical solution, the circumferential width D3 of the outer end of the lower cutting blade is less than or equal to the circumferential width D2, and the circumferential width D4 of the inner end of the lower cutting blade is less than or equal to the circumferential width D3.

[0013] In a further technical solution, arc-shaped lower cutting edges are respectively provided on both sides of the lower cutting blade in the circumferential direction.

[0014] In a further technical solution, an arc-shaped clearance groove is provided on the side of the lower cutting blade facing the rotating shaft, and anti-jamming rounded corners are provided between the clearance groove and the two lower cutting blades respectively.

[0015] The advantages of this invention compared to existing technologies are as follows: When the moving blade assembly rotates, the arc-shaped cutting surface of the upper cutting blade provides centripetal force to the clumps or lumps of kitchen waste. When kitchen waste far from the rotating axis cannot be broken, it moves towards the rotating axis under the action of centripetal force, thereby reducing the lever arm, increasing the cutting force, improving the breaking effect, and preventing the blade from jamming. The cd segment extends away from the center of the rotating axis, so that the centripetal force gradually increases from point d to point c. The farther the kitchen waste is from the rotating axis, the greater the centripetal force it can obtain, thereby increasing the potential energy of the outer kitchen waste to further prevent the blade from jamming. It also makes the force on the kitchen waste not in the same direction, reducing the resultant force, making cutting more effortless, reducing the load on the motor, and allowing the use of a relatively small power motor to reduce costs and space occupation. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the fixing blade of this utility model;

[0019] Figure 3 This is a top view of the fixed blade of this utility model;

[0020] Figure 4 This is a schematic diagram showing the state of the upper cutting blade of this utility model at point d;

[0021] Figure 5 This is the utility model Figure 4 An enlarged view of the X-section;

[0022] Figure 6 This is a schematic diagram showing the state of the upper cutting blade of this utility model at point c, where the force point is located.

[0023] Figure 7 This is the utility model Figure 6 A magnified view of the Y-section;

[0024] Figure 8 This is a schematic diagram of the centripetal force of this utility model.

[0025] In the picture:

[0026] 1 barrel body;

[0027] 2. Fixed blade, 21. Barrel connecting piece, 22. Upper cutting blade, 221. Arc-shaped cutting surface, 23. Blade connecting piece, 24. Lower cutting blade, 241. Lower cutting edge, 242. Clearance groove, 243. Anti-jamming rounded corner;

[0028] 3. Moving blade assembly;

[0029] 4. Rotating shaft. Detailed Implementation

[0030] The following are merely preferred embodiments of the present invention and do not limit the scope of protection of the present invention.

[0031] A food waste crushing and processing device to prevent the blades from jamming, such as Figures 1 to 8As shown, the device includes a barrel body 1, a moving blade assembly 3, a rotating shaft 4, and at least one fixed blade 2. The middle part of the rotating shaft 4 is rotatably mounted to the bottom of the barrel body 1. The moving blade assembly 3 is fixedly mounted to the upper part of the rotating shaft 4. The fixed blade 2 is fixedly mounted to the inner wall of the barrel body 1. The fixed blade 2 includes a barrel connecting piece 21 and an upper cutting blade 22. The barrel connecting piece 21 is fixedly mounted to the inner wall of the barrel body 1. The outer end of the upper cutting blade 22 is formed in the barrel connecting piece 21. The inner end of the upper cutting blade 22 extends toward the rotating shaft 4. The outer end of the upper cutting blade 22... The circumferential width D1 is greater than the circumferential width D2 of the inner end of the barrel connecting piece 21. Upper cutting blades are respectively provided on both sides of the circumferential direction of the barrel connecting piece 21. The upper cutting blades are arranged from the outside to the inside as points a, b, c and d. Points d to c extend away from the center of the rotating shaft 4 to form segment cd. Points c to b extend towards the center of the rotating shaft 4 to form segment bc. Points b to a extend towards the center of the rotating shaft 4 to form segment ab. Segment cd is provided with at least one arc-shaped cutting surface 221. Traditional fixed blades 2 have blades that are either straight or wavy. When clumps or lumps of kitchen waste are trapped between the fixed blade 2 and the moving blade assembly 3, they can only cut at the contact point, which can easily cause the blades to jam. In contrast, the cd segment of this invention consists of one or more arc-shaped cutting surfaces 221 connected end-to-end. When the moving blade assembly 3 rotates, the arc-shaped cutting surface 221 of the upper cutting blade provides centripetal force to the clumps or lumps of kitchen waste. When kitchen waste far from the rotating axis 4 cannot be broken up, the food waste is subjected to centripetal force... Under the action of the rotating shaft 4, the force arm is reduced, the cutting force is increased, the crushing effect is improved, and the blade jamming phenomenon is avoided. The cd segment extends away from the center of the rotating shaft 4 so that the centripetal force gradually increases from point d to point c. The farther away the kitchen waste is from the rotating shaft 4, the greater the centripetal force it can obtain, thereby increasing the potential energy of the outer kitchen waste, further preventing the blade jamming phenomenon, and making the force on the kitchen waste not in the same direction, reducing the resultant force, making cutting more effortless, reducing the load on the motor, and allowing the selection of a relatively small power motor to reduce costs and space occupation.

[0032] Specifically, during the crushing and cutting process, the clamping angle between the line of action L1 of the force direction of the upper cutting blade and the line L2 connecting the point of force application to the rotating shaft 4 is α; as shown... Figure 6 and Figure 7 As shown, when the force is applied at point c, α is at its minimum value, and the line of action L1 is the normal line of the tangent L3 between the force application point and segment cd, as shown. Figure 4 and Figure 5As shown, when the force point is at point d, α is at its maximum value and α is 90°. At this time, the cutting angle L3 coincides with the connecting line L2. As the kitchen waste moves from point c towards point d, the centripetal force it experiences gradually decreases, thus preventing the blade from jamming. When the kitchen waste reaches point d, the centripetal force it receives is close to 0. At this point, the kitchen waste can obtain a more concentrated cutting force at point d, thereby concentrating and increasing the cutting force and improving the cutting effect.

[0033] Specifically, the inner end of the upper cutting blade is also provided with point e, which is located between the rotating shaft 4 and point d. Point e and point d form segment de, which is a straight segment, and segment cd is tangent to segment de. By extending the force-bearing area of ​​point d through segment de, the contact area with kitchen waste is increased, further preventing the blade from jamming and increasing the cutting force.

[0034] Specifically, the lengths of segments ab and bc are both shorter than the length of segment cd, with lengths of 2–5 mm for segments ab and bc respectively. The shorter lengths of segments ab and bc are to ensure the structural strength of the fixed blade 2 at this position, while also reducing processing difficulty. When food waste touches segment ab, the shorter length of segment ab results in more concentrated force, further improving the crushing effect. Segment bc is the rounded transition segment between segments ab and cd. The centripetal force in segment bc increases from 0 to its maximum value from point b to point c. Due to the shorter length of segment bc, when food waste touches segment bc, it is either crushed or squeezed into segment cd, thus preventing blade jamming.

[0035] Specifically, the fixed blade 2 is further provided with a blade connecting piece 23 and a lower cutting blade 24. The upper end of the blade connecting piece 23 is formed on the inner end of the upper cutting blade 22, and the outer end of the lower cutting blade 24 is formed on the lower end of the blade connecting piece 23. The inner end of the lower cutting blade 24 extends toward the rotating shaft 4. The lower cutting blade 24 is connected to the upper cutting blade 22 through the blade connecting piece 23. The lower cutting blade 24 increases the radial length of the fixed blade 2 to increase the cutting area. Furthermore, the lower cutting blade 24 and the upper cutting blade 22 are staggered in the vertical direction, which can cover a deeper vertical cutting range.

[0036] Specifically, the blade connecting piece 23 is inclined towards the rotating shaft 4 from top to bottom, and the clamping angle between the blade connecting piece 23 and the upper cutting blade 22 and the lower cutting blade 24 is 60-80°. The inclined blade connecting piece 23 enables the moving blade assembly 3 that it cooperates with to cut to be in an inclined state, which not only improves the cutting surface, but also gives the kitchen waste the potential energy to move downward, further preventing the blade from jamming.

[0037] Specifically, the circumferential width D3 at the outer end of the lower cutting blade 24 is less than or equal to the circumferential width D2, and the circumferential width D4 at the inner end of the lower cutting blade 24 is less than or equal to the circumferential width D3. Preferably, the circumferential width D3 is equal to the circumferential width D2, and the circumferential width D4 is less than the circumferential width D3, so that the circumferential width of the fixed blade 2 gradually decreases from the outside to the inside, further expanding the cutting surface and improving the crushing effect while ensuring the structural strength of the fixed blade 2.

[0038] Specifically, the lower cutting blade 24 has arc-shaped lower cutting edges 241 on both sides of its circumference. The arc-shaped lower cutting edges 241 can not only further expand the cutting surface, but also give the kitchen waste a certain centripetal force, further preventing the blade from jamming.

[0039] Specifically, the lower cutting blade 24 has an arc-shaped clearance groove 242 on the side facing the rotating shaft 4, and anti-jamming rounded corners 243 are respectively provided between the clearance groove 242 and the two lower cutting blades 241. The arc of the clearance groove 242 corresponds to the hub of the moving blade assembly 4, so that the gap between the lower cutting blade 24 and the moving blade assembly 4 is kept consistent, and in conjunction with the anti-jamming rounded corners 243, it prevents kitchen waste from getting stuck between the lower cutting blade 24 and the moving blade assembly 4.

[0040] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A kitchen waste crushing and processing device for preventing blade jamming, comprising a barrel (1), a moving blade assembly (3), a rotating shaft (4), and at least one fixed blade (2), wherein the middle part of the rotating shaft (4) is rotatably mounted on the bottom of the barrel (1), the moving blade assembly (3) is fixedly mounted on the upper part of the rotating shaft (4), and the fixed blade (2) is fixedly mounted on the inner wall of the barrel (1), characterized in that: The fixed blade (2) includes a barrel connecting piece (21) and an upper cutting blade (22). The barrel connecting piece (21) is fixedly installed on the inner wall of the barrel body (1). The outer end of the upper cutting blade (22) is formed on the barrel connecting piece (21). The inner end of the upper cutting blade (22) extends toward the rotating shaft (4). The circumferential width D1 of the outer end of the upper cutting blade (22) is greater than the circumferential width D2 of the inner end of the barrel connecting piece (21). The barrel connecting piece (21) is provided with upper cutting blades on both sides of the circumference. The upper cutting blades are provided with points a, b, c and d from the outside to the inside. Points d to c extend away from the center of the rotating shaft (4) to form segment cd. Points c to b extend toward the center of the rotating shaft (4) to form segment bc. Points b to a extend toward the center of the rotating shaft (4) to form segment ab. Segment cd is provided with at least one arc-shaped cutting surface (221).

2. The kitchen waste crushing and processing device for preventing blade jamming according to claim 1, characterized in that: During the crushing and cutting process, the clamping angle between the line L1 of the force direction of the upper cutting blade and the line L2 connecting the point of force to the rotating shaft (4) is α; when the point of force is at point c, α is the minimum value, and when the point of force is at point d, α is the maximum value and α is 90°.

3. The kitchen waste crushing and processing device for preventing blade jamming according to claim 1, characterized in that: The inner end of the upper cutting blade is also provided with point e, which is located between the rotating shaft (4) and point d. Point e and point d form segment de, which is a straight line segment. Segment cd is tangent to segment de.

4. The kitchen waste crushing and processing device for preventing blade jamming according to claim 1, characterized in that: The lengths of segments ab and bc are both less than the length of segment cd.

5. A kitchen waste crushing and processing device for preventing blade jamming according to claim 4, characterized in that: The lengths of segment ab and segment bc are 2~5mm respectively.

6. A kitchen waste crushing and processing device for preventing blade jamming according to any one of claims 1 to 5, characterized in that: The fixed blade (2) is also provided with a blade connecting piece (23) and a lower cutting blade (24). The upper end of the blade connecting piece (23) is formed at the inner end of the upper cutting blade (22), and the outer end of the lower cutting blade (24) is formed at the lower end of the blade connecting piece (23). The inner end of the lower cutting blade (24) extends toward the rotating shaft (4).

7. A kitchen waste crushing and processing device for preventing blade jamming according to claim 6, characterized in that: The blade connecting piece (23) is inclined towards the rotating shaft (4) from top to bottom, and the clamping angle between the blade connecting piece (23) and the upper cutting blade (22) and the lower cutting blade (24) is 60~80°.

8. A kitchen waste crushing and processing device for preventing blade jamming according to claim 6, characterized in that: The circumferential width D3 of the outer end of the lower cutting blade (24) is less than or equal to the circumferential width D2, and the circumferential width D4 of the inner end of the lower cutting blade (24) is less than or equal to the circumferential width D3.

9. A kitchen waste crushing and processing device for preventing blade jamming according to claim 6, characterized in that: The lower cutting blade (24) has arc-shaped lower cutting edges (241) on both sides of its circumference.

10. A kitchen waste crushing and processing device for preventing blade jamming according to claim 9, characterized in that: The lower cutting blade (24) is provided with an arc-shaped relief groove (242) on the side facing the rotating shaft (4), and anti-jamming rounded corners (243) are provided between the relief groove (242) and the two lower cutting blades (241).

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