Kitchen waste disposer capable of solving problem of jamming of movable and static discs

Abstract

The kitchen waste processor adopts a layered shell design and comprises an upper shell and a lower shell, the upper shell and the lower shell are respectively fixed with a movable disc and a static disc of a machine, the upper shell and the lower shell can be detached, and the upper shell can be taken down, so that the movable disc and the static disc of the machine are exposed and separated, and foreign matters clamped between the movable disc and the static disc can be conveniently taken down by a tool; a waterproof sealing mechanism is designed at the joint of the upper and lower shells, and a gap between the movable and static discs of the machine is adjustable and can be separated, thereby facilitating the removal of machine clamping foreign matters. The kitchen waste processor can conveniently and quickly solve the problem that foreign matters enter the kitchen waste processor to cause jamming of the movable disc and the static disc, is convenient for a user to use the kitchen waste processor, and greatly reduces the after-sale cost of the kitchen waste processor.

Description

Technical Field

[0001] The invention belongs to the technical field of household appliances and mechanical manufacturing, and particularly relates to a kitchen garbage disposer capable of solving the problem of dynamic and static garbage jams. Background Art

[0002] With the acceleration of global urbanization and the improvement of people's living standards, the amount of food waste generated is growing exponentially. Efficiently and environmentally friendly disposal of this organic waste has become a key issue in urban management. As a key device for on-site food waste reduction in both homes and businesses, kitchen waste disposers combine mechanical grinding with water flushing to crush food scraps into fine particles that meet sewer discharge standards. This reduces waste transportation pressure, mitigates the risk of odor, and promotes resource utilization. The design, development, and optimization of kitchen waste disposers are directly linked to the implementation of environmental policies and the improvement of user experience.

[0003] The current state of the industry shows that the kitchen waste disposer market is in a period of rapid expansion. In Europe and the United States, the penetration rate of such devices has exceeded 50%, while the Chinese market has seen an annual compound growth rate of over 30% in recent years due to policy promotion and consumption upgrades. Mainstream products mostly adopt the core architecture of "motor drive + grinding chamber", where the grinding chamber is composed of a dynamic disc (rotating grinding disc) and a static disc (fixed grinding ring) as the core working unit. The dynamic disc generates centrifugal force through high-speed rotation, throwing the garbage onto the surface of the static disc, and the mechanical action of the cutter head, grinding hammer and impact head achieves crushing; the static disc uses fixed raised patterns to form shear force, further refining the particle diameter to a range of 2~5mm. This type of design is very efficient in processing organic matter such as fruit peels, vegetable leaves, and bones, but there are still technical bottlenecks when facing complex usage scenarios.

[0004] From a technical structural analysis, the operational stability of existing kitchen waste disposers is highly dependent on the precise coordination of the grinding system. The gap control between the moving and static discs, the wear resistance of the materials, and the power transmission efficiency directly affect the life of the equipment and the treatment effect. However, in actual use, due to differences in user operating habits, non-target objects are often accidentally thrown in. Among them, the entry of metal foreign objects (such as cutlery fragments, keys, bottle caps, etc.) has become a core cause of equipment failure. Such foreign objects can easily get stuck in the gap between the moving and static discs during the grinding process, leading to the following technical problems: First, the hardness of metal is much higher than that of organic waste. When the moving disc rotates, it produces severe friction with foreign objects, causing the disc to wear or the blade to crack; second, the obstruction of foreign objects will instantly increase the motor load, triggering the overload protection mechanism and even burning the motor; third, repeated jamming leads to frequent reset operations, affecting the user experience and increasing after-sales costs.

[0005] Although existing technologies have attempted to provide protection through pre-filters and magnetic devices, the practical effects are limited. Traditional filters have difficulty balancing protection and processing efficiency due to the contradiction in aperture design (too small affects the passage of large organic matter, and too large cannot intercept metal debris); magnetic devices mostly use permanent magnets, but the installation location (such as the water inlet or drain pipe) and the magnetic strength are insufficient, resulting in small metal particles still entering the grinding chamber. In addition, some high-end models have introduced an automatic reversal function to alleviate machine jams, but this solution can only deal with soft foreign matter and has little effect on hard metal foreign matter, and frequent reversals will accelerate motor wear. For example, the Chinese utility model patent with publication number CN214219862U provides a kitchen garbage disposer, the core of which is to achieve an anti-jamming function through a radially telescopic grinding frame. The grinding frame can automatically adjust its radius according to the grinding resistance. When encountering hard objects (such as bones), the grinding frame contracts to reduce resistance and avoid jamming. However, the radial telescopic mechanism of this patented technology relies on precise mechanical design (such as hinge structure and reset spring), which increases the manufacturing difficulty and cost. The telescopic adjustment takes time, and it may not be able to respond in time to sudden hard object jams (such as metal fragments), resulting in temporary jamming. The telescopic parts are prone to accumulate food residues, and long-term use may affect flexibility and require frequent cleaning. For example, the Chinese invention patent application with publication number CN109746096A provides a bidirectional anti-stuck garbage disposer, which realizes forward and reverse switching through a reversing device. When it is stuck in the forward direction, the magnetic part triggers the positioning device to unlock, and the reversing sleeve drives the bevel gear to switch direction, so that the grinding disc reverses and releases the jam. However, the magnetic part needs to accurately control the reversing timing. If the magnetic field strength is insufficient or the positioning device has low sensitivity, it may cause reversing failure. Frequent forward and reverse rotation accelerates the wear of the gears and sleeves, shortening the life of the equipment. The reversing process generates mechanical friction, increases operating noise, and affects the user experience.

[0006] In summary, although kitchen garbage disposers have shown significant advantages in the field of organic waste treatment, the problem of dynamic and static disk jamming caused by metal foreign matter has become a key technical obstacle restricting the improvement of their reliability. This problem not only increases equipment maintenance costs, but may also cause safety hazards. It urgently needs to be solved through structural innovation and optimization of protection mechanisms. Summary of the Invention

[0007] In view of the above, the present invention provides a kitchen garbage disposer that can solve the problem of static and dynamic disk jams in the kitchen garbage disposer, which can solve the problem of on-site maintenance of the static and dynamic disk jams caused by the entry of foreign objects such as metal objects.

[0008] A kitchen garbage disposer that solves the problem of static and dynamic disks getting stuck adopts a layered design and includes an upper shell and a lower shell. The upper and lower shells are separated and assembled by a detachable connection. The static disk is fixedly installed on the bottom of the upper shell, and the dynamic disk is installed on the top of the lower shell. The joint between the upper and lower shells adopts a waterproof sealing design.

[0009] Furthermore, the upper shell covers the top of the grinding chamber and is directly connected to the static disk. A feed port is provided on the top of the upper shell to introduce kitchen waste; the lower shell carries the dynamic disk and is internally provided with a motor to drive the dynamic disk to rotate.

[0010] Furthermore, the upper shell and the lower shell are fixed by threaded tightening, snap locking or bolts.

[0011] Preferably, the upper and lower housings are secured together with bolts. Multiple (3, 4, 5, or 6) stainless steel bolts are evenly distributed across the connecting surfaces of the upper and lower housings. The bolt heads are recessed into countersunk holes in the upper housing surface to prevent them from protruding and affecting the appearance. The bolts also have built-in anti-loosening measures. To remove a jammed object, the user simply loosens the bolts with a screwdriver, then lifts the upper housing vertically upward to completely separate it from the lower housing. The static plate then moves synchronously with the upper housing, while the dynamic plate remains fixed to the surface of the lower housing. The gap between the dynamic and static plates is fully exposed, allowing for direct observation and removal of stuck objects.

[0012] In order to solve the problem of water leakage caused by disassembly and assembly of the shell, a double sealing mechanism is set at the joint of the upper shell and the lower shell. The first seal adopts a double-layer oil-resistant fluororubber O-ring, which is embedded in the annular sealing groove on the surface of the lower shell. When the upper shell and the lower shell are tightened, the O-ring is compressed and radially deformed, filling the tiny gap between the contact surfaces to form a primary waterproof barrier; the second seal is a liquid silicone sealing layer, which is coated with silicone with a thickness of 0.8~1.2mm on the outside of the sealing groove of the lower shell through automated dispensing equipment. After curing at room temperature, a flexible sealing gasket is formed, which works synergistically with the O-ring to block moisture penetration.

[0013] Furthermore, the moving disc is connected to the motor output shaft through a spline shaft. The spline structure allows the moving disc to float in the axial range of 5 to 8 mm. When the upper shell is lifted, the static disc moves synchronously with the upper shell and is completely separated from the moving disc. At this time, the gap can reach the maximum value, which is convenient for directly removing large foreign objects.

[0014] To prevent vibration during operation due to excessive clearance, a limit block is set at the bottom of the moving disc. When the moving disc moves down to the limit position, the limit block contacts the inner side of the lower shell to prevent further movement, ensuring that the clearance between the moving and static discs is stable at 1~2mm under normal working conditions.

[0015] A kitchen garbage disposer that solves the problem of static and dynamic disks getting stuck adopts a layered design and includes an upper shell, a middle shell, and a lower shell. Each layer of the shell can be separated and assembled by a detachable connection. The static disk is fixedly installed on the bottom of the upper shell, and the dynamic disk is installed on the top of the middle shell. The upper and middle shells are fixed with bolts, and the joint between the two adopts a waterproof sealing design.

[0016] Furthermore, a plurality of stainless steel bolts are evenly distributed on the connecting surface of the upper shell and the middle shell, and the bolt heads are embedded in the countersunk holes on the surface of the upper shell to avoid protrusion affecting the appearance, and the bolts have built-in anti-loosening measures; when it is necessary to clean foreign objects stuck in the machine, the user only needs to use a screwdriver to loosen the bolts, and then lift the upper shell vertically upward to completely separate it from the middle shell. At this time, the static disk moves synchronously with the upper shell, and the dynamic disk is fixed to the surface of the middle shell. The gap between the dynamic and static disks is completely exposed, which is convenient for direct observation and removal of stuck foreign objects.

[0017] Furthermore, a double sealing mechanism is provided at the junction of the upper shell and the middle shell. The first sealing adopts a double-layer O-ring, which is embedded in the annular sealing groove on the surface of the middle shell. When the upper shell and the middle shell are tightened, the O-ring is compressed and radially deformed, filling the tiny gap between the contact surfaces to form a primary waterproof barrier. The second sealing is achieved by coating the outer side of the sealing groove of the middle shell with silicone with a thickness of 0.8~1.2mm through automated dispensing equipment. After curing at room temperature, a flexible sealing gasket is formed, which works synergistically with the O-ring to block moisture penetration.

[0018] The present invention can conveniently and quickly solve the problem of a kitchen garbage disposer being stuck due to foreign matter entering the disposer, facilitate users to use the kitchen garbage disposer, and significantly reduce the after-sales cost of the kitchen garbage disposer. Specific beneficial technical effects include the following aspects: 1. Changes in maintenance methods and improved maintenance efficiency: With the original product structure, if the machine's dynamic or static disc jammed, the machine had to be disassembled and sent back to the manufacturer for repair. Now, maintenance personnel can directly solve the problem at the user's home. Even users with a basic knowledge of mechanical and electrical engineering can solve the problem themselves at home, greatly improving maintenance efficiency.

[0019] 2. Enhanced sealing reliability: After 5,000 disassembly and assembly tests, the double-sealed structure has a leakage rate of less than 0.1%, far better than the industry average (about 5%).

[0020] 3. Extended equipment life: The adjustable gap between the dynamic and static discs reduces the wear of hard foreign objects on the disc body, and the service life of the dynamic disc is increased from 3 years in traditional solutions to more than 5 years.

[0021] 4. Optimized safety performance: The sealed structure prevents moisture from penetrating into the motor cavity, reducing the risk of short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the kitchen garbage disposer of the present invention.

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the kitchen garbage disposer of the present invention.

[0024] Figure 3 A schematic diagram of the partial details of the multiple waterproof sealing design in the kitchen garbage disposer of the present invention.

[0025] Figure 4 This is a schematic diagram of the structure of the kitchen garbage disposer of the present invention after the shell is removed.

[0026] Figure 5 It is a cross-sectional view of the kitchen garbage disposer of the present invention. DETAILED DESCRIPTION

[0027] In order to describe the present invention more specifically, the technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1 and Figure 2 As shown, the kitchen garbage disposer housing in this embodiment adopts a layered design, consisting of an upper shell, a lower shell and a middle shell, and each layer of the shell can be quickly separated and assembled through a detachable connection.

[0029] like Figure 4 and Figure 5 As shown, the upper housing covers the top of the grinding chamber and is directly connected to the static plate. A feed port is located on the top to introduce food waste. The middle housing serves as a transition section, fixed above the lower housing. It supports the static plate and is sealed to the upper housing. The motor is housed in the lower housing. Four stainless steel screws are evenly distributed on the connecting surface of the upper and middle housings, with the screw heads recessed into countersunk holes on the surface of the upper housing to avoid protrusion and affecting the appearance. To remove foreign objects that are stuck in the machine, the user simply loosens the screws with a standard screwdriver, then lifts the upper housing vertically upward to completely separate it from the middle housing. The static plate now moves synchronously with the upper housing, while the dynamic plate is fixed to the surface of the middle housing. The gap between the static and dynamic plates is completely exposed, allowing for direct observation and removal of stuck foreign objects.

[0030] In order to solve the problem of water leakage caused by the disassembly of the shell, a double sealing mechanism is set at the junction of the upper shell and the middle shell, such as Figure 3 As shown, this can be expanded to a triple seal if necessary. The first seal utilizes an oil-resistant fluororubber O-ring embedded in an annular sealing groove on the surface of the middle housing. When the upper and middle housings are tightened, the O-ring is compressed and deforms radially, filling the tiny gap between the contact surfaces and forming a primary waterproof barrier. The second seal is a liquid silicone sealant. Using automated dispensing equipment, a 0.8-1.2mm thick layer of silicone is applied to the outer surface of the sealing groove in the middle housing. After curing at room temperature, it forms a flexible seal that works in conjunction with the O-ring to block moisture penetration. For higher levels of waterproofing, a labyrinth-style sealing structure can be added to the edge of the contact surface: a zigzag annular groove is machined into the surface of the middle housing, and raised ribs are provided in corresponding positions on the upper housing. When the two housings are assembled, the ribs embed themselves in the grooves, forming a labyrinthine path, extending the liquid leakage path and reducing the risk of leakage. All sealing materials are food-grade to ensure safety in contact with food waste.

[0031] The moving plate is connected to the motor output shaft via a splined shaft. The spline structure allows the moving plate to float axially within a range of 5 to 8 mm. When the upper housing is lifted, the static plate moves synchronously with the upper housing, completely separating from the moving plate. At this point, the clearance is maximized, facilitating the direct removal of large foreign objects. To prevent vibration caused by excessive clearance during operation, a limit block is installed at the bottom of the moving plate. When the moving plate moves to the limit position, the limit block contacts the inner side of the middle housing, preventing further movement. This ensures that the clearance between the moving and static plates remains stable at 1 to 2 mm under normal operating conditions.

[0032] When a user accidentally drops a metal key into the inlet of a kitchen garbage disposer, causing the device to become stuck and shut down, and after turning off the power, the user performs the following operations: Use a Phillips screwdriver to loosen the four stainless steel screws on the upper housing. Once the screws are completely removed, lift the upper housing vertically upward. The static plate will move synchronously with the upper housing and completely separate from the dynamic plate fixed to the middle housing. The key will now be stuck between the dynamic and static plates, visible within the visible range. Observe the scale markings on the side of the stator disk. The current gap is 1.5mm (normal working state). The user rotates the stator disk and adjusts it in the "+" direction by 3 steps (0.5mm per step). The stator disk moves away from the moving disk, and the gap increases to 3mm. Use pointed tweezers to grasp the edge of the key and gently remove it from the enlarged gap. Check that there are no other foreign objects remaining on the surface of the dynamic and static plates. Rotate the stator disc in the opposite direction and adjust it 3 grids in the “-” direction to restore it to its original position (1.5mm clearance). Make sure the scale marks are aligned. Put the upper shell back on the surface of the middle shell, tighten the four stainless steel screws, and insert the screw heads into the countersunk holes. At this time, the fluororubber O-ring is compressed to form a primary seal, and the liquid silicone sealing layer contacts the bottom of the upper shell to form a secondary seal. Turn on the power, inject clean water into the feed port, observe whether there is any leakage at the junction of the middle shell and the upper shell, and the equipment resumes normal operation.

[0033] To verify the reliability of the multiple sealing structure of the present invention, the following operations were simulated: Disassemble and assemble the housing three times a day (loosen the bolts → lift the upper housing → adjust the static disk gap → remove the assumed foreign object → reassemble). The test lasts for 500 consecutive days, with a total of 1,500 disassembly and assembly times. After every 100 disassembly and assembly, inject clean water at a pressure of 0.3 MPa into the grinding chamber for 30 minutes and observe the leakage at the junction of the upper shell and the middle shell; Test results: During the first 1,200 disassembly and assembly cycles, only a small amount of water seepage (approximately 0.1 ml / min) occurred during the 300th cycle due to uneven coating of the silicone sealant layer. This water seepage was restored after re-coating with silicone. During the next 300 disassembly and assembly cycles, there was no leakage, and the fluororubber O-ring showed no signs of aging or cracking. The labyrinth seal structure consistently effectively blocked liquids. After the test, the shell was disassembled to inspect the seals: the O-ring remained elastic and had no permanent deformation; the silicone sealing layer was firmly bonded to the upper and middle shells without any falling off; there was no garbage residue in the labyrinth sealing groove, and the structural integrity was good.

[0034] The above description of the embodiments is intended to facilitate understanding and application of the present invention by those skilled in the art. It is apparent that those skilled in the art can readily make various modifications to the above embodiments and apply the general principles described herein to other embodiments without requiring creative effort. Therefore, the present invention is not limited to the above embodiments. Any improvements or modifications made by those skilled in the art based on the disclosure of the present invention should fall within the scope of protection of the present invention.

Claims

1. A kitchen garbage disposer that solves the problem of static and dynamic garbage jams, characterized by: It adopts a layered design, including an upper shell and a lower shell. The upper and lower shells are separated and assembled through a detachable connection. The bottom of the upper shell is fixedly installed with a static disk, and the top of the lower shell is installed with a dynamic disk. The joint of the upper and lower shells adopts a waterproof sealing design.

2. The kitchen garbage disposer for solving the problem of static and dynamic garbage jamming according to claim 1, characterized in that: The upper shell covers the top of the grinding chamber and is directly connected to the static disk. A feed port is provided on the top of the upper shell to introduce kitchen waste. The lower shell carries the dynamic disk and is internally provided with a motor to drive the dynamic disk to rotate.

3. The kitchen garbage disposer for solving the problem of static and dynamic garbage jamming according to claim 1, characterized in that: The upper shell and the lower shell are fixed with bolts, and multiple bolts are evenly distributed on the connecting surfaces of the upper and lower shells. The bolt heads are embedded in the countersunk holes on the surface of the upper shell to avoid protrusion affecting the appearance. The bolts have built-in anti-loosening measures. When it is necessary to clean foreign objects stuck in the machine, the user only needs to use a screwdriver to loosen the bolts, and then lift the upper shell vertically upward to completely separate it from the lower shell. At this time, the static plate moves synchronously with the upper shell, and the dynamic plate is fixed to the surface of the lower shell. The gap between the dynamic and static plates is completely exposed, which is convenient for direct observation and removal of stuck foreign objects.

4. The kitchen garbage disposer for solving the problem of static and dynamic garbage jamming according to claim 1, characterized in that: A double sealing mechanism is set at the junction of the upper shell and the lower shell. The first seal adopts a double-layer O-ring, which is embedded in the annular sealing groove on the surface of the lower shell. When the upper shell and the lower shell are tightened, the O-ring is compressed and radially deformed, filling the tiny gap between the contact surfaces to form a primary waterproof barrier; the second seal is achieved by coating the outer side of the sealing groove of the lower shell with silicone with a thickness of 0.8~1.2mm through automated dispensing equipment. After curing at room temperature, a flexible sealing gasket is formed, which works synergistically with the O-ring to block moisture penetration.

5. The kitchen garbage disposer for solving the problem of static and dynamic garbage jamming according to claim 2, characterized in that: The moving disc is connected to the motor output shaft through a spline shaft. The spline structure allows the moving disc to float in the axial range of 5 to 8 mm. When the upper shell is lifted, the static disc moves synchronously with the upper shell and is completely separated from the moving disc. At this time, the gap can reach the maximum value, which is convenient for directly removing large foreign objects.

6. The kitchen garbage disposer for solving the problem of static and dynamic garbage jamming according to claim 1, characterized in that: A limit block is provided at the bottom of the movable disc. When the movable disc moves downward to the limit position, the limit block contacts the inner side of the lower shell to prevent further movement, ensuring that the gap between the movable and static discs is stable at 1-2 mm under normal working conditions.

7. A kitchen garbage disposer that solves the problem of static and dynamic garbage jams, characterized by: It adopts a layered design, including an upper shell, a middle shell and a lower shell. Each shell layer can be separated and assembled through a detachable connection. The bottom of the upper shell is fixed with a static disk, and the top of the middle shell is installed with a dynamic disk. The upper shell and the middle shell are fixed with bolts, and the joint between the two adopts a waterproof sealing design.

8. The kitchen garbage disposer for solving the problem of static and dynamic garbage jamming according to claim 7, characterized in that: There are multiple bolts evenly distributed on the connecting surface of the upper shell and the middle shell, and the bolt heads are embedded in the countersunk holes on the surface of the upper shell to avoid protruding and affecting the appearance. The bolts have built-in anti-loosening measures. When it is necessary to clean foreign objects stuck in the machine, the user only needs to use a screwdriver to loosen the bolts, and then lift the upper shell vertically upward to completely separate it from the middle shell. At this time, the static disk moves synchronously with the upper shell, and the dynamic disk is fixed to the surface of the middle shell. The gap between the dynamic and static disks is completely exposed, which is convenient for direct observation and removal of stuck foreign objects.

9. The kitchen garbage disposer for solving the problem of static and dynamic garbage jamming according to claim 7, characterized in that: A double sealing mechanism is set at the junction of the upper shell and the middle shell. The first sealing adopts a double-layer O-ring embedded in the annular sealing groove on the surface of the middle shell. When the upper shell and the middle shell are tightened, the O-ring is compressed and radially deformed, filling the tiny gap between the contact surfaces to form a primary waterproof barrier; the second sealing is achieved by coating the outer side of the sealing groove of the middle shell with silicone with a thickness of 0.8~1.2mm through automated dispensing equipment. After curing at room temperature, a flexible sealing gasket is formed, which works synergistically with the O-ring to block moisture penetration.

Images