Kitchen waste treatment equipment
By designing a kitchen waste treatment device with a scissor-type cutting blade and a filter plate scraper system, the problem of kitchen waste clogging the drain of the vegetable washing sink is solved, and the effects of automated treatment, energy saving and space saving are achieved.
Patent Information
- Application Number
- CN202510876542.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2025-09-23
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, kitchen waste easily clogs the stainless steel filter screen at the sink drain, requiring frequent manual cleaning, which causes inconvenience in use.
A food waste treatment device is designed, which uses a scissor-like first and second cutting blades to cut and crush the food waste, and discharges the unshredded large-volume waste through a filter plate and scraper system to avoid clogging of the sewer pipe.
It realizes the automatic processing of food waste without the need for stainless steel filters, avoids the blockage of sewer pipes, simplifies user maintenance, and saves energy and space.
Smart Images

Figure CN120683919A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of garbage disposal, and in particular to a kitchen garbage disposal device. Background Art
[0002] Kitchen waste primarily refers to organic waste generated in daily life that is easily decomposed and spoils. It originates from places like food processing, catering services, farmers' markets, and home kitchens. In home kitchens, before cooking, ingredients need to be washed and processed to remove dirt, pesticide residue, and rotten leaves. After cooking, dishes need to be washed and any leftovers removed. These processes generate a large amount of organic waste.
[0003] The most commonly used tool in a home kitchen is the sink. By installing a drain at the bottom of the sink and connecting it directly to the house's sewer pipe, wastewater can be discharged. However, to prevent solid waste such as food scraps from entering the sewer and causing pipe blockage, people install a stainless steel filter at the sink drain. Its fine mesh structure intercepts larger food waste particles, preventing them from entering and clogging the sewer pipe.
[0004] Although the original intention of the stainless steel filter was to protect the sewer pipes from clogging, in actual household use, small but numerous kitchen waste with different textures, such as rice grains, noodle scraps, small leftover leaves, and fish bones, can easily accumulate, entangle, or get stuck in the mesh of the stainless steel filter, causing the sink to not drain properly and causing water accumulation. Therefore, users have to manually remove the clogged filter frequently and clean out the accumulated waste to restore its function. This cleaning process, which requires frequent manual intervention, undoubtedly brings significant inconvenience to daily kitchen use and has certain limitations. Summary of the Invention
[0005] The purpose of the present invention is to provide a food waste treatment device to solve the technical problem in the prior art that when a stainless steel filter is used to block food waste, the food waste easily blocks the drain of the sink, requiring the user to frequently clean the garbage remaining on the stainless steel filter, causing inconvenience.
[0006] The purpose of the present invention can be achieved through the following technical solutions: A food waste treatment device comprises an upper shell and a lower shell; an inner shell is arranged in an internal space jointly formed by the upper shell and the lower shell, the upper part of the inner shell is a conical structure, and a cavity is opened inside the inner shell; a fixed frame is fixedly arranged inside the cavity; a first shaft is rotatably connected to the lower part of the fixed frame; a second shaft is rotatably connected to the upper part of the fixed frame; the upper part of the first shaft extends to the upper end of the second shaft; a plurality of first cutting blades in a circumferential array are fixedly connected to the upper end of the second shaft, and a plurality of second cutting blades in a circumferential array are fixedly connected to the upper end of the second shaft, and the first cutting blades and the second cutting blades are staggered in a scissor-like manner.
[0007] Preferably, the first shaft is connected to a lower bevel gear; the second shaft is connected to an upper bevel gear; and both left and right sides of the fixed frame are rotatably connected to bridge bevel gears.
[0008] Preferably, a motor is fixedly provided in the cavity at a position corresponding to the position directly below the fixed frame, and the output end of the motor is connected to the lower end of the first shaft.
[0009] Preferably, a filter plate is fixedly installed inside the space formed by the lower shell and the inner shell; a scraper is abutted against the filter plate, and the scraper slides continuously on the annular filter plate; a cutout is opened on the filter plate; and an arc-shaped discharge pipe is fixedly connected to the position of the lower shell corresponding to the lower surface of the filter plate.
[0010] Preferably, the center of the bridge bevel gear is fixed with a third shaft rod; the inner shell is provided with a groove body corresponding to the position of the end of the third shaft rod; the third shaft rod is connected with a transmission bevel gear at a position corresponding to the inside of the groove body; the inner shell is provided with an annular groove corresponding to the position of the upper part of the groove body; a bevel gear is rotatably connected in the annular groove, and the scraper is symmetrically fixed to the outer edge of the bevel gear.
[0011] Preferably, a plurality of insertion rods in a circumferential array are fixedly connected to the bottom of the inner shell; a plurality of sleeves corresponding one-to-one to the insertion rods are fixedly connected to the lower shell, and the sleeves are arranged through the bottom of the lower shell.
[0012] Preferably, a conical limit block is fixed to the lower end of the insertion rod; a cross slot is opened at the lower end of the insertion rod, which allows the limit block to retract inward, so that the limit block slides inside the sleeve, and reopens under the action of elastic recovery after reaching the lower end of the sleeve, so that the limit block is stuck at the lower end of the sleeve.
[0013] Preferably, the steps of the kitchen waste treatment equipment for waste treatment are: S1: Use the rod and sleeve to fix the inner shell to the lower shell, then use the countersunk screws to connect the upper shell to the lower shell. Finally, connect the upper end of the upper shell to the drain of the vegetable sink and the lower end of the lower shell to the sewer pipe. S2: The kitchen waste follows the water flow from the drain outlet of the pool to the space formed by the upper shell and the lower shell; S3: The food waste encounters the first cutting blade and the second cutting blade arranged in a scissor-like manner, and the first cutting blade and the second cutting blade cut and crush the food waste; S4: Sewage and fully shredded food waste continue to flow downward until they are discharged into the sewer pipe.
[0014] Preferably, after the food waste is cut and crushed in step S3, the large volume of food waste that is not completely chopped follows the water flow to the filter plate and is blocked by the filter plate. The scraper continuously rotates on the upper surface of the filter plate, so that the large volume of food waste retained on the filter plate is pushed to the incision and falls from the incision into the inside of the arc-shaped discharge pipe, and is discharged to the outside of the lower shell.
[0015] Preferably, the specific operation of cutting and crushing the kitchen waste in step S3 is: The motor drives the first shaft to rotate, and the first shaft drives the third shaft to rotate in cooperation with the lower bevel gear and the bridge bevel gear, so that the third shaft drives the scraper to continuously rotate on the filter plate through the cooperation of the transmission bevel gear and the bevel gear; when the bridge bevel gear rotates, it drives the second shaft to rotate by cooperating with the upper bevel gear, and synchronously drives the first cutting edge and the second cutting edge to rotate in the opposite direction.
[0016] Beneficial effects of the present invention: 1. When a user washes food or dishes in the sink, the kitchen waste follows the water flow and flows from the drain outlet of the sink into the space formed by the upper shell and the lower shell. The kitchen waste first encounters the first and second cutting blades arranged in a scissor-like manner. The first and second cutting blades rotate in opposite directions and at high speed to cut and crush the kitchen waste, greatly reducing the volume of the kitchen waste. Without the need for a stainless steel filter, the blockage of the sewer pipe can be avoided. The use is easy and simple, providing great convenience for users.
[0017] 2. In the present invention, an annular filter plate is provided in the flow channel formed by the lower shell and the inner shell. The food waste that is not chopped by the first cutting blade and the second cutting blade will follow the water flow to the filter plate and be blocked by the filter plate. The sewage and partially chopped food waste will continue to flow downward until they are discharged into the sewer pipe. The large-volume food waste blocked by the filter plate is driven by the bevel gear to rotate continuously. When the bevel gear rotates, it drives the scraper to rotate continuously on the upper surface of the filter plate, so that the large-volume food waste retained on the filter plate can be pushed to the incision and fall from the incision into the inside of the arc-shaped discharge pipe, and then discharged to the outside of the lower shell for collection in a trash can or trash bag, thereby preventing the large-volume food waste that is not chopped by the first cutting blade and the second cutting blade from being blocked in the sewer pipe, thereby providing a second line of defense against blockage of the sewer pipe.
[0018] The transmission gear of the present invention is connected with the transmission gear of the upper and lower parts, and the transmission gear of the lower and lower parts is connected with the transmission gear of the lower part, so that the transmission gear of the upper and lower parts is connected with the transmission gear of the lower part.
[0019] 4. The present invention sets the top of the inner shell into a conical structure, so that the kitchen waste can be chopped and flow into the flow channel formed by the lower shell and the inner shell with the water flow, and will not accumulate on the top of the lower shell, making it cleaner and tidier after use. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention will be further described below with reference to the accompanying drawings.
[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 is a cross-sectional view of the present invention; Figure 4 Schematic diagram of the cooperation between the first cutting edge and the second cutting edge in the present invention; Figure 5 It is a schematic diagram of the filter plate structure of the present invention; Figure 6 It is a schematic diagram of the scraper structure of the present invention; Figure 7 It is a schematic diagram of the ring groove structure in the present invention.
[0022] In the figure: 1. lower shell; 2. upper shell; 3. inner shell; 4. cavity; 5. fixing frame; 6. bridge bevel gear; 7. lower bevel gear; 8. upper bevel gear; 9. first shaft; 10. second shaft; 11. first cutting edge; 12. second cutting edge; 13. motor; 14. third shaft; 15. transmission bevel gear; 16. filter plate; 17. arc discharge pipe; 18. bevel gear; 19. scraper; 20. sleeve; 21. insert rod; 22. limit block; 23. cross seam; 24. trough body; 25. ring groove; 26. incision. DETAILED DESCRIPTION
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0024] See also Figure 1-Figure 3 As shown, a food waste treatment device includes an upper shell 2 and a lower shell 1 connected to each other, the upper shell 2 is a flange-shaped structure, the lower shell 1 is a funnel-shaped structure, and the upper shell 2 is connected to the drain of the vegetable washing sink, and the lower shell 1 is connected to the sewer pipe; an inner shell 3 is provided in the internal space jointly formed by the upper shell 2 and the lower shell 1.
[0025] Please refer again Figure 1-Figure 3 As shown, a plurality of circular arrayed insertion rods 21 are fixed to the bottom of the inner shell 3; a plurality of sleeves 20 corresponding to the insertion rods 21 are fixed to the lower shell 1, and the sleeves 20 are arranged through the bottom of the lower shell 1; a conical limit block 22 is fixed to the lower end of the insertion rod 21; a cross slot 23 is provided at the lower end of the insertion rod 21, which allows the limit block 22 to retract inwardly, so that the limit block 22 slides inside the sleeve 20, and reopens under the action of elastic recovery after reaching the lower end of the sleeve 20, so that the limit block 22 is stuck at the lower end of the sleeve 20.
[0026] Please refer again Figure 2-Figure 6 As shown, the upper part of the inner shell 3 is a conical structure with a cavity 4 opened inside; a fixed frame 5 is fixed inside the cavity 4; the lower part of the fixed frame 5 is rotatably connected to the first shaft 9; the upper part of the fixed frame 5 is rotatably connected to the second shaft 10; the upper part of the first shaft 9 passes through the upper end of the second shaft 10; the upper end of the first shaft 9 is fixedly connected to a plurality of first cutting blades 11 in a circular array; the upper end of the second shaft 10 is fixedly connected to a plurality of second cutting blades 12 in a circular array, and the first cutting blades 11 and the second cutting blades 12 are staggered in a scissor-like arrangement.
[0027] Please refer again Figure 2-Figure 6 As shown, the first shaft 9 is connected to the lower bevel gear 7; the second shaft 10 is connected to the upper bevel gear 8; a motor 13 is fixedly provided in the cavity 4 at a position corresponding to the position directly below the fixed frame 5, and the output end of the motor 13 is connected to the lower end of the first shaft 9; the left and right sides of the fixed frame 5 are rotatably connected to the bridge bevel gear 6, and the upper bevel gear 8 and the lower bevel gear 7 are meshed with each other through the two bridge bevel gears 6 for transmission.
[0028] Please refer again Figure 2 and Figure 7As shown, the center of the bridge bevel gear 6 is fixedly connected to the third shaft rod 14; the inner shell 3 is provided with a groove body 24 at a position corresponding to the end of the third shaft rod 14; the third shaft rod 14 is connected to the position of the inside of the groove body 24 with the transmission bevel gear 15; the inner shell 3 is provided with an annular groove 25 at a position corresponding to the upper part of the groove body 24; the annular groove 25 is rotatably connected with the bevel gear 18, and the bevel gear 18 and the transmission bevel gear 15 are meshed with each other; the outer edge of the bevel gear 18 is fixedly connected to the symmetrically arranged scraper 19; the filter plate 16 is fixedly provided inside the space formed by the lower shell 1 and the inner shell 3, and the upper surface of the filter plate 16 abuts against the lower part of the scraper 19; the filter plate 16 is provided with a cutout 26; the lower shell 1 is fixedly provided with an arc-shaped discharge pipe 17 at a position corresponding to the lower surface of the filter plate 16, the upper inlet of the arc-shaped discharge pipe 17 is connected to the cutout 26, and the lower end passes through the outside of the lower shell 1.
[0029] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in actual process is described in detail below: When in use, first use the insertion rod 21 and the sleeve 20 to fix the inner shell 3 inside the lower shell 1, then use the countersunk screws to connect the upper shell 2 and the lower shell 1, and finally connect the upper end of the upper shell 2 to the drain of the vegetable washing sink, and connect the lower end of the lower shell 1 to the sewer pipe.
[0030] Afterwards, when the user washes food or dishes in the sink, the kitchen waste follows the water flow from the drain of the sink to the space formed by the upper shell 2 and the lower shell 1. The kitchen waste first encounters the first cutting blade 11 and the second cutting blade 12 arranged in a scissor-like manner. The first cutting blade 11 and the second cutting blade 12 are rotated in opposite directions and at high speed to cut and crush the kitchen waste, greatly reducing the volume of the kitchen waste. Without the need for a stainless steel filter, the blockage of the sewer pipe can be avoided. It is easy and simple to use, providing great convenience for users.
[0031] Among them, by setting the top of the inner shell 3 to a conical structure, the kitchen waste can be chopped and flow into the circulation channel formed by the lower shell 1 and the inner shell 3 with the water flow, and will not accumulate on the top of the lower shell 1, making it cleaner and tidier after use.
[0032] Among them, since an annular filter plate 16 is provided in the flow channel formed by the lower shell 1 and the inner shell 3, the food waste that is not completely chopped by the first cutting blade 11 and the second cutting blade 12 will follow the water flow to the filter plate 16 and be blocked by the filter plate 16. The sewage and the completely chopped food waste will continue to flow downward until they are discharged into the sewer pipe. The food waste with a large volume blocked by the filter plate 16 will be pushed to the incision 26 by the transmission bevel gear 15, and the bevel gear 18 will drive the scraper 19 to rotate continuously on the upper surface of the filter plate 16 when it rotates, so that the large volume of food waste retained on the filter plate 16 is pushed to the incision 26 and falls from the incision 26 into the inside of the arc discharge pipe 17, and then discharged to the outside of the lower shell 1 for collection in a trash can or trash bag, thereby preventing the large volume of food waste that is not completely chopped by the first cutting blade 11 and the second cutting blade 12 from being blocked in the sewer pipe, providing a second line of protection against blockage of the sewer pipe.
[0033] It is worth noting here that: since some food waste, such as fish bones and chicken bones, has a certain hardness, the first rotary blade 11 and the second rotary blade 12 may not be able to chop all of it during operation. The volume of the uncut food waste is 10mm-25mm, and it is retained on the filter plate 16. The completely chopped food waste is less than 10mm and flows directly to the bottom of the filter plate 16 with the water flow.
[0034] Among them, the first shaft 9 is driven to rotate by the motor 13, and the first shaft 9 can drive the third shaft 14 to rotate under the cooperation of the lower bevel gear 7 and the bridge bevel gear 6, so that the third shaft 14 drives the scraper 19 to continuously rotate on the filter plate 16 through the cooperation of the transmission bevel gear 15 and the bevel gear 18; in addition, when the bridge bevel gear 6 rotates, it can also drive the second shaft 10 to rotate by cooperating with the upper bevel gear 8. Since the first cutting edge 11 is connected to the upper part of the first shaft 9 and the second cutting edge 12 is connected to the upper part of the second shaft 10, the first cutting edge 11 and the second cutting edge 12 can be driven to rotate synchronously. In addition, since the upper bevel gear 8 and the lower bevel gear 7 are driven by the bridge bevel gear 6, the rotation directions of the upper bevel gear 8 and the lower bevel gear 7 are opposite, so that the first cutting blade 11 and the second cutting blade 12 can rotate synchronously in opposite directions, thereby utilizing the scissor-type arrangement of the first cutting blade 11 and the second cutting blade 12 to shred the food waste and avoid clogging of the sewer pipe. By adopting a power source to simultaneously drive the scraper 19, the first cutting blade 11 and the second cutting blade 12, not only the integration of the equipment is greatly improved, but also the effects of saving energy, saving costs, and saving equipment space are achieved.
[0035] It should be noted that, in this document, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.
[0036] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.
Claims
1. A kitchen waste treatment device, comprising an upper shell (2) and a lower shell (1); characterized in that: An inner shell (3) is provided in the internal space formed by the upper shell (2) and the lower shell (1); the upper portion of the inner shell (3) is a conical structure, and a cavity (4) is provided therein; A fixed frame (5) is fixedly provided inside the cavity (4); the lower portion of the fixed frame (5) is rotatably connected to a first shaft (9); the upper portion of the fixed frame (5) is rotatably connected to a second shaft (10); the upper portion of the first shaft (9) passes through the upper end of the second shaft (10); A plurality of first cutting blades (11) in a circumferential array are fixedly connected to the upper end of the first shaft (9); a plurality of second cutting blades (12) in a circumferential array are fixedly connected to the upper end of the second shaft (10), and the first cutting blades (11) and the second cutting blades (12) are arranged in a scissor-like staggered manner.
2. The kitchen waste treatment equipment according to claim 1, characterized in that: The first shaft (9) is connected to a lower bevel gear (7); the second shaft (10) is connected to an upper bevel gear (8); and the left and right sides of the fixed frame (5) are both rotatably connected to bridge bevel gears (6).
3. The kitchen waste treatment equipment according to claim 2, characterized in that: A motor (13) is fixedly provided in the cavity (4) at a position corresponding to the position directly below the fixed frame (5), and the output end of the motor (13) is connected to the lower end of the first shaft (9).
4. The kitchen waste treatment equipment according to claim 2, characterized in that: A filter plate (16) is fixedly arranged inside the space formed by the lower shell (1) and the inner shell (3); a scraper (19) is arranged in contact with the filter plate (16), and the scraper (19) continuously slides on the annular filter plate (16); a cutout (26) is opened on the filter plate (16); and an arc-shaped discharge pipe (17) is fixedly connected to the position of the lower shell (1) corresponding to the lower surface of the filter plate (16).
5. The kitchen waste treatment equipment according to claim 2, characterized in that: The center of each bridge bevel gear (6) is fixedly connected to a third shaft (14); a slot body (24) is provided on the inner housing (3) at a position corresponding to the end of the third shaft (14); a transmission bevel gear (15) is connected to a position of the third shaft (14) corresponding to the interior of the slot body (24); an annular groove (25) is provided on the inner housing (3) at a position corresponding to the upper portion of the slot body (24); a bevel gear (18) is rotatably connected in the annular groove (25), and a scraper (19) is symmetrically fixed to the outer edge of the bevel gear (18).
6. The kitchen waste treatment equipment according to claim 1, characterized in that: A plurality of insertion rods (21) in a circumferential array are fixedly connected to the bottom of the inner shell (3); a plurality of sleeves (20) corresponding one-to-one to the insertion rods (21) are fixedly connected to the lower shell (1), and the sleeves (20) are arranged through the bottom of the lower shell (1).
7. The kitchen waste treatment device according to claim 6, characterized in that: A conical stopper (22) is fixedly connected to the lower end of the insertion rod (21); a cross slot (23) is provided at the lower end of the insertion rod (21), which allows the stopper (22) to retract inward, so that the stopper (22) slides inside the sleeve (20), and reopens under the action of elastic recovery after reaching the lower end of the sleeve (20), so that the stopper (22) is stuck at the lower end of the sleeve (20).
8. The kitchen waste treatment equipment according to claim 1, characterized in that: The steps of garbage disposal by the kitchen waste treatment equipment are as follows: S1: Use the insert rod (21) and the sleeve (20) to fix the inner shell (3) inside the lower shell (1), then use the countersunk screw to connect the upper shell (2) and the lower shell (1), and finally connect the upper end of the upper shell (2) to the drain of the vegetable washing sink, and connect the lower end of the lower shell (1) to the sewer pipe; S2: The kitchen waste follows the water flow and flows from the drain of the pool into the space formed by the upper shell (2) and the lower shell (1); S3: the food waste encounters the first cutting blade (11) and the second cutting blade (12) arranged in a scissor-like manner, and the first cutting blade (11) and the second cutting blade (12) cut and crush the food waste; S4: Sewage and fully shredded food waste continue to flow downward until they are discharged into the sewer pipe.
9. The kitchen waste treatment equipment according to claim 8, characterized in that: After the food waste is cut and crushed in step S3, the large-volume food waste that has not been completely chopped follows the water flow to the filter plate (16) and is blocked by the filter plate (16). The scraper (19) continuously rotates on the upper surface of the filter plate (16), so that the large-volume food waste retained on the filter plate (16) is pushed to the incision (26) and falls from the incision (26) into the inside of the arc-shaped discharge pipe (17), and is thus discharged to the outside of the lower shell (1).
10. The kitchen waste treatment equipment according to claim 8, characterized in that: The specific operations of cutting and crushing the kitchen waste in step S3 are as follows: The motor (13) drives the first shaft (9) to rotate, and the first shaft (9) drives the third shaft (14) to rotate in cooperation with the lower bevel gear (7) and the bridge bevel gear (6), so that the third shaft (14) drives the scraper (19) to continuously rotate on the filter plate (16) through the cooperation of the transmission bevel gear (15) and the bevel gear (18); When the bridge bevel gear (6) rotates, it drives the second shaft (10) to rotate by cooperating with the upper bevel gear (8), and synchronously drives the first cutting edge (11) and the second cutting edge (12) to rotate in opposite directions.