Sleeve type kitchen garbage fermentation device

By introducing a motor-driven mixing and cleaning mechanism into the waste fermentation device, and utilizing the cooperation of a scraper and a ball spring plug, the problem of cleaning the inner wall of the food waste fermentation device was solved, extending the equipment life and improving fermentation efficiency.

CN224001381UActive Publication Date: 2026-03-17INSTITUTE OF ENVIRONMENT AND SUSTAINABLE DEVELOPMENT IN AGRICULTURE CAAS
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520586489.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-17
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

Existing waste fermentation devices are unable to effectively pulverize mixed kitchen waste during aerobic fermentation, and the sticky organic matter produced during fermentation easily adheres to the inner wall of the tank, which is difficult to remove using traditional rinsing methods, leading to wear and the risk of biological contamination, and affecting the lifespan of the equipment.

Method used

The hybrid cleaning mechanism, driven by an electric motor, includes a cleaning component and a scraper. Water is injected through the inlet, and the cooperation of the ball spring plug and the scraper enables thorough cleaning of the inner wall of the device, reducing wear and tear and waste of human resources.

Benefits of technology

This achieves efficient cleaning of the inner wall of the device, extends the service life of the equipment, reduces the waste of manpower and time resources, and improves fermentation efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224001381U_ABST
    Figure CN224001381U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of garbage treatment, in particular to a sleeve type kitchen garbage fermentation device which comprises a fermentation tank main body, and a mixing and cleaning mechanism is arranged in the middle of the fermentation tank main body; the mixed cleaning mechanism comprises a motor and a cleaning assembly, the bottom of the motor is fixedly connected with the top of the fermentation tank main body, the output end of the motor is fixedly connected with a bevel gear I, and the cleaning assembly is vertically and rotatably inserted into the center of the upper end of the fermentation tank main body. The device has the beneficial effects that the motor, the hollow rotating shaft, the ball rod spring plug and the scraping rod are matched, water is evenly sprayed to the inner wall of the device through external water injection and motor driving, the interior of the device is comprehensively cleaned, in the non-cleaning state, abrasion of the scraping rod is reduced, waste of manpower and time resources is reduced, and the service life of the device is prolonged.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of waste treatment, specifically a sleeve-type kitchen waste fermentation device. Background Technology

[0002] Food waste contains extremely high levels of moisture and organic matter, making it highly perishable and producing a foul odor. Currently, the main methods for treating food waste are landfill, incineration, and resource recovery. Resource recovery is the inevitable choice for the future of the food waste disposal industry. The sleeve-type fermentation chamber employs a multi-layered nested structure: the main fermentation chamber uses an inner and outer sleeve design, with the outer sleeve serving as an insulation layer and the inner sleeve as the fermentation reaction zone. A heat-conducting medium (such as deionized water or heat-conducting oil) is filled between the outer and inner sleeves, and constant temperature control is achieved through heating wires or hot air circulation, preventing external temperature fluctuations from affecting fermentation efficiency.

[0003] Existing fermentation equipment cannot effectively crush and mix kitchen waste during aerobic fermentation. Furthermore, the sticky organic matter (such as protein gel and polysaccharide matrix) produced during fermentation easily adheres to the inner wall of the tank. The salt and acidic metabolic products in the kitchen waste severely corrode the metal parts, which are difficult to remove using traditional rinsing methods. Internal scrapers are required for cleaning, but wear and tear still occurs when the equipment is not clean. Existing equipment needs to be shut down periodically for disassembly and replacement, which is labor-intensive and poses a risk of biological contamination, thus shortening the equipment's lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a sleeve-type kitchen waste fermentation device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sleeve-type kitchen waste fermentation device, comprising a fermentation tank body, wherein a mixing and cleaning mechanism is provided in the middle of the fermentation tank body;

[0006] The mixing cleaning mechanism includes a motor and a cleaning component. The bottom of the motor is fixedly connected to the top of the fermentation tank body. A bevel gear is fixedly connected to the output end of the motor. The cleaning component is vertically rotatably inserted into the upper center of the fermentation tank body. A bevel gear is sleeved on the outside of the cleaning component of the fermentation tank body. The bevel gear and the bevel gear mesh with each other. A water inlet is provided through the outside of the cleaning component of the fermentation tank body. The cleaning component includes two scrapers.

[0007] Preferably, the cleaning component includes a hollow rotating shaft and two scrapers. The top of the hollow rotating shaft is fixedly connected to the water inlet, and a stirring blade is fixedly connected to the middle of the outer wall of the hollow rotating shaft. Fixing members are fixedly connected to the top and bottom of the outer wall of the hollow rotating shaft.

[0008] Preferably, the fixing member has water channels inside both sides of the hollow rotating shaft, the water channels are connected to the inside of the hollow rotating shaft, and one side of the water channels is connected to a movable groove, the width of the movable groove is greater than the diameter of the water channels.

[0009] Preferably, the fixing member has sliding grooves on both sides away from the hollow rotating shaft, and the sliding groove has a guide hole connected to the movable groove. The upper and lower ends of the scraper are respectively movably inserted into the sliding grooves on the same side of the two fixing members. The two sides of the scraper are conical, and water spray grooves are opened through both inner sides.

[0010] Preferably, a ball-and-stick spring plug is fixedly installed on the side of the scraper near the movable groove. The diameter of the spherical end of the ball-and-stick spring plug is larger than the diameter of the water passage groove. The spherical end of the ball-and-stick spring plug is connected to the movable groove through a fixed tension spring. The spherical end of the ball-and-stick spring plug is in contact with the end of the water passage groove away from the hollow rotating shaft. The rod part of the ball-and-stick spring plug is slidably connected to the guide hole. A water-permeable hole is opened on the side of the movable groove near the water spray groove.

[0011] Preferably, the fermentation tank body includes an outer cylinder, an inner cylinder is fixedly connected to the inner wall of the outer cylinder, there is a gap between the outer cylinder and the inner cylinder, a waste inlet pipe is fixedly connected to one side of the outer cylinder, and the waste inlet pipe is connected to the inner cylinder.

[0012] Preferably, the inner wall of the waste input pipe is provided with a crushing roller, a sealing plate is rotatably connected to the top side of the waste input pipe, a material injection pipe is fixedly connected to the top of the outer cylinder, and a discharge port is fixedly connected to the bottom of the outer cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model proposes a sleeve-type kitchen waste fermentation device, which optimizes the design of existing waste fermentation devices. It uses a motor, hollow rotating shaft, ball spring plug, and scraper in combination. Through external water injection and motor drive, water is evenly sprayed onto the inner wall of the device, and the inside of the device is thoroughly cleaned. In the non-cleaning state, it reduces the wear of the scraper, reduces the waste of manpower and time resources, and extends the service life of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the cleaning component structure of this utility model;

[0018] Figure 4This is an enlarged structural diagram of point A in this utility model;

[0019] Figure 5 This is a schematic diagram of the top structure of the cleaning component of this utility model.

[0020] In the diagram: 1. Main body of fermentation tank; 11. Outer cylinder; 12. Inner cylinder; 13. Waste input pipe; 14. Crushing roller; 15. Feeding pipe; 16. Discharge port; 2. Mixing and cleaning mechanism; 21. Motor; 22. Bevel gear one; 23. Bevel gear two; 24. Water inlet; 25. Cleaning components; 251. Hollow rotating shaft; 252. Stirring blade; 253. Water channel; 254. Fixing component; 255. Ball rod spring plug; 256. Sliding groove; 257. Movable groove; 258. Water spraying groove; 259. Scraper. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see the appendix Figure 1-5 This application provides the following technical solutions.

[0023] A sleeve-type kitchen waste fermentation device includes a fermentation tank body 1, with a mixing and cleaning mechanism 2 disposed in the middle of the fermentation tank body 1. The mixing and cleaning mechanism 2 includes a motor 21 and a cleaning component 25. The bottom of the motor 21 is fixedly connected to the top of the fermentation tank body 1, and a bevel gear 22 is fixedly connected to the output end of the motor 21. The cleaning component 25 is vertically rotatably inserted into the upper center of the fermentation tank body 1, and a bevel gear 23 is sleeved on the outside of the cleaning component 25. The bevel gear 22 meshes with the bevel gear 23. The cleaning component 25 is connected to the outside of the fermentation tank body 1 and has a water inlet 24. The cleaning component 25 includes two scrapers 259 and a hollow rotating shaft 251. The top of the hollow rotating shaft 251 is fixedly connected to the water inlet 24. A stirring blade 252 is fixedly connected to the middle of the outer wall of the hollow rotating shaft 251. Fixing members 254 are fixedly connected to the top and bottom of the outer wall of the hollow rotating shaft 251. Water channels 25 are provided inside the fixing members 254 on both sides of the hollow rotating shaft 251. 3. The water channel 253 is internally connected to the hollow rotating shaft 251. One side of the water channel 253 is provided with a movable groove 257, the width of which is greater than the diameter of the water channel 253. The fixing member 254 has sliding grooves 256 on both sides away from the hollow rotating shaft 251. The sliding grooves 256 are connected to the movable grooves 257 and have guide holes. The upper and lower ends of the scraper rod 259 are respectively movably inserted into the sliding grooves 256 on the same side of the two fixing members 254. The scraper rod 259 has tapered sides, and both sides of the 256 are connected to the sliding grooves 256. A water spray groove 258 is provided through the scraper 259. A ball spring plug 255 is fixedly installed on the side of the scraper 259 near the movable groove 257. The diameter of the spherical end of the ball spring plug 255 is larger than the diameter of the water channel 253. The spherical end of the ball spring plug 255 is connected to the movable groove 257 through a fixed tension spring. The spherical end of the ball spring plug 255 is in contact with the end of the water channel 253 away from the hollow rotating shaft 251. The rod part of the ball spring plug 255 is slidably connected to the guide hole. A water permeable hole is provided on the side of the movable groove 257 near the water spray groove 258.

[0024] It should be noted that the cleaning water is connected to the inner wall of the external water source cleaning device from the top of the water inlet 24. The cleaning water enters the hollow rotating shaft 251 through the water inlet 24, and then enters the water passage 253 from the hollow rotating shaft 251. The water pressure pushes the ball spring plug 255 to open, so that the ball spring plug 255 moves in the sliding groove 256. The rod of the ball spring plug 255 slides along the inner wall of the guide hole, pushing the scraper 259 to slide along the inner wall of the movable groove 257 until the scraper 259 is in contact with the inner wall of the inner cylinder 12. The cleaning water passes through the water permeable hole opened in the movable groove 257, and is then separated by the inclined surface of the scraper 259, and sprayed out from the spray groove 258 onto the inner wall of the inner cylinder 12 to rinse it. At the same time, the motor 21 is started to drive the cleaning component 25 to rotate, so that the scraper 259 scrapes along the inner wall of the inner cylinder 12 to remove the stains that are difficult to rinse. After cleaning is completed, the external water injection is stopped, and the ball spring plug 255 drives the scraper 259 to return to its original position.

[0025] The main body 1 of the fermentation tank includes an outer cylinder 11, an inner cylinder 12 is fixedly connected to the inner wall of the outer cylinder 11, there is a gap between the outer cylinder 11 and the inner cylinder 12, a garbage inlet pipe 13 is fixedly connected to one side of the outer cylinder 11, the garbage inlet pipe 13 is connected to the inner cylinder 12, a crushing roller 14 is provided on the inner wall of the garbage inlet pipe 13, a sealing plate is rotatably connected to one side of the top of the garbage inlet pipe 13, a material injection pipe 15 is fixedly connected to the top of the outer cylinder 11, and a discharge port 16 is fixedly connected to the bottom of the outer cylinder 11.

[0026] It should be noted that the operator starts the crushing roller 14 and puts kitchen waste into the top opening of the waste input pipe 13. The crushing roller 14 crushes the kitchen waste. After the crushing is completed, the kitchen waste enters the inner cylinder 12. After all the waste is put in, the sealing plate on the crushing roller 14 is rotated to close. Yeast liquid is then put into the injection pipe 15. The motor 21 is started, which drives the first bevel gear 22 to rotate. The first bevel gear 22 drives the second bevel gear 23 to rotate. The second bevel gear 23 drives the water inlet 24 to rotate. The water inlet 24 drives the cleaning component 25 to rotate. The stirring blades 252 on the cleaning component 25 break the kitchen waste into smaller solids. The stirring blades mix the yeast and kitchen waste, which can improve the fermentation efficiency of the waste. At the same time, in order to provide a suitable temperature environment for fermentation, the space between the outer cylinder 11 and the inner cylinder 12 is filled with a heat-conducting medium such as deionized water or heat-conducting oil. Constant temperature control is achieved through heating wire or hot air circulation to avoid external temperature fluctuations affecting fermentation efficiency.

[0027] In use, the operator starts the crushing roller 14 and feeds kitchen waste into the top opening of the waste inlet pipe 13. The crushing roller 14 initially crushes the kitchen waste, which then enters the inner cylinder 12. After all the waste has been fed in, the sealing plate on the crushing roller 14 is rotated to close, and yeast solution is added through the feeding pipe 15. The motor 21 is started, driving the first bevel gear 22 to rotate, which in turn drives the second bevel gear 23 to rotate, which in turn drives the water inlet 24 to rotate, which in turn drives the cleaning component 25 to rotate. The stirring blades 252 on the cleaning component 25 break the kitchen waste into smaller solids, and the stirring blades mix the yeast and kitchen waste, which improves the fermentation efficiency of the waste. To provide a suitable temperature environment for fermentation, the space between the outer cylinder 11 and the inner cylinder 12 is filled with a heat-conducting medium such as deionized water or heat-conducting oil. Constant temperature control is achieved through heating wires or hot air circulation to avoid external temperature fluctuations. The movement affects the fermentation efficiency. After fermentation is complete, the discharge port 16 can be opened to remove the fermented waste. At the same time, the inner wall of the device can be cleaned by connecting an external water source from the top of the water inlet 24. Clean water enters the hollow rotating shaft 251 through the water inlet 24, and then enters the water passage 253 from the hollow rotating shaft 251. The water pressure pushes the ball spring plug 255 to open, causing the ball spring plug 255 to move in the sliding groove 256. The rod of the ball spring plug 255 slides along the inner wall of the guide hole, pushing the scraper 2. 59 slides along the inner wall of the movable groove 257 until the scraper 259 is in contact with the inner wall of the inner cylinder 12. The cleaning water passes through the water-permeable holes opened in the movable groove 257 and is then separated by the inclined surface of the scraper 259. It is sprayed out from the spray groove 258 to the inner wall of the inner cylinder 12 to rinse it. At the same time, the motor 21 is started to drive the cleaning component 25 to rotate, so that the scraper 259 scrapes along the inner wall of the inner cylinder 12 to remove the stains that are difficult to rinse. After cleaning is completed, the external water injection is stopped, and the ball spring plug 255 drives the scraper 259 to return to its original position.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sleeve type kitchen garbage fermentation device, comprising a fermentation tank body (1), a mixing and cleaning mechanism (2) is arranged in the middle of the fermentation tank body (1); characterized in that The mixing and cleaning mechanism (2) comprises a motor (21) and a cleaning assembly (25), the bottom of the motor (21) is fixedly connected with the top of the fermentation tank body (1), the output end of the motor (21) is fixedly connected with a bevel gear (22), the cleaning assembly (25) is vertically rotatably inserted in the center of the upper end of the fermentation tank body (1), the cleaning assembly (25) is sleeved with a bevel gear (23) on the outside of the fermentation tank body (1), the bevel gear (22) is meshingly connected with the bevel gear (23), the cleaning assembly (25) is provided with a water injection opening (24) penetrating through the outside of the fermentation tank body (1), and the cleaning assembly (25) comprises two scraper rods (259).

2. The sleeve type kitchen garbage fermentation device according to claim 1, characterized in that: The cleaning assembly (25) comprises a hollow rotating shaft (251) and two scraper rods (259), the top of the hollow rotating shaft (251) is fixedly connected with the water injection opening (24), the middle of the outer wall of the hollow rotating shaft (251) is fixedly connected with a stirring blade (252), and the top and bottom of the outer wall of the hollow rotating shaft (251) are fixedly connected with fixing members (254).

3. The sleeve type kitchen garbage fermentation device according to claim 2, characterized in that: The fixing members (254) are provided with water passing grooves (253) in the interiors of the two sides of the hollow rotating shaft (251), the water passing grooves (253) are in communication with the interior of the hollow rotating shaft (251), and movable grooves (257) are formed in communication in one side of the water passing grooves (253).

4. The sleeve type kitchen garbage fermentation device according to claim 2, characterized in that: The fixing members (254) are provided with sliding grooves (256) away from the two sides of the hollow rotating shaft (251), guide holes are formed in the sliding grooves (256) in communication with the movable grooves (257), the upper and lower ends of the scraper rods (259) are movably inserted into the sliding grooves (256) of the same sides of the two fixing members (254), the two sides of the scraper rods (259) are tapered, and water spraying grooves (258) are formed penetrating through the two sides of the sliding grooves (256).

5. The sleeve type kitchen garbage fermentation device according to claim 2, characterized in that: One side of the scraper rod (259) close to the movable groove (257) is fixedly provided with a ball rod spring plug (255), the diameter of the spherical end of the ball rod spring plug (255) is greater than that of the water passing groove (253), the spherical end of the ball rod spring plug (255) is connected with the movable groove (257) through a fixed tension spring, the spherical end of the ball rod spring plug (255) is attached to one end of the water passing groove (253) away from the hollow rotating shaft (251), the rod part of the ball rod spring plug (255) is slidably connected with the guide hole, and a water permeable hole is formed in one side of the movable groove (257) close to the water spraying groove (258).

6. The sleeve type kitchen garbage fermentation device according to claim 1, characterized in that: The fermentation tank body (1) comprises an outer cylinder (11), the inner wall of the outer cylinder (11) is fixedly connected with an inner cylinder (12), there is a gap between the outer cylinder (11) and the inner cylinder (12), one side of the outer cylinder (11) is fixedly connected with a garbage input pipe (13), and the garbage input pipe (13) is in communication with the inner cylinder (12).

7. The sleeve type kitchen garbage fermentation device according to claim 6, characterized in that: The inner wall of the garbage input pipe (13) is provided with a crushing roller (14), one side of the top of the garbage input pipe (13) is rotationally connected with a sealing plate, the top of the outer cylinder (11) is fixedly connected with a feeding pipe (15), and the bottom of the outer cylinder (11) is fixedly connected with a discharge port (16).