Sealing structure of kitchen waste fermentation device

By designing a combined sealing structure of rotating ring, rack, gear, fan plate and polygonal plate, the problem of insufficient sealing of fermentation device was solved, realizing safe gas discharge and sealing, and improving the stability and safety of fermentation device.

CN224077346UActive Publication Date: 2026-04-03ZHEJIANG BAOKUN MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Conventional fermentation equipment lacks a sealing structure, which leads to increased pressure when the gas inside the fermenter expands, causing instability in the sealing structure and gas leakage.

Method used

A combined sealing structure comprising a rotating ring, rack, gear, rotating rod, fan plate, and polygonal plate is designed. The flexible opening and closing of the sealing structure is achieved through the meshing of the gear and rack. An air inlet pipe and an exhaust pipe are provided to control the gas flow, and a gas detection element and an exhaust fan are provided to monitor and control the gas flow.

Benefits of technology

It achieves stability and reliability of the sealing structure, prevents external air or impurities from entering, ensures safe gas discharge and sealing, reduces leakage risk, and improves the safety and efficiency of the fermentation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fermentation devices, in particular to a kitchen waste fermentation device sealing structure which comprises a mounting cylinder, the mounting cylinder is connected to the air outlet end of a fermentation box, a sealing structure is rotatably arranged at the top end of the mounting cylinder, and a sealing dome is connected to the top end of the sealing structure. The sealing structure comprises a rotating ring and a fixed ring, the rotating ring is rotatably arranged at the top end of the mounting cylinder, the fixed ring is connected to the inner wall of the mounting cylinder, and an annular side plate is connected to the outer ring of the bottom end of the rotating ring. When air needs to be exhausted, the rotating ring is rotated to allow air to flow out of the fermentation box, when air does not need to be exhausted, the sealing structure can be tightly closed to prevent external air or impurities from entering the fermentation box, and the sector plates form a closed circular plane between the fixing ring and the polygonal plate, so that the stability and the reliability of the sealing structure are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of fermentation device technology, specifically a sealing structure for a kitchen waste fermentation device. Background Technology

[0002] According to research by Mingli Environmental Protection, kitchen waste is not entirely useless. It has the dual characteristics of being both waste and resource. Through Mingli's kitchen waste fermentation tank, the organic matter in the kitchen waste can be decomposed and utilized. After about 15 days of continuous aerobic fermentation in the fermentation tank, the organic solid waste is processed into high-quality organic fertilizer that can be used for crops after being fermented, deodorized, and matured by microorganisms.

[0003] Conventional fermentation devices lack corresponding sealing structures during use. During fermentation, the gas inside the fermentation tank expands, increasing the pressure inside the tank. This can cause instability in the tank and sealing structure, leading to gas leakage. Therefore, a sealing structure for a kitchen waste fermentation device is proposed. Utility Model Content

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

[0005] To achieve the above objectives, the present invention provides the following technical solution: it includes an installation cylinder, which is connected to the gas outlet end of the fermentation chamber, and a sealing structure is rotatably provided at the top of the installation cylinder, and a sealing dome is connected to the top of the sealing structure;

[0006] The sealing structure includes a rotating ring rotatably mounted at the top of the mounting cylinder and a fixed ring connected to the inner wall of the mounting cylinder. An annular side plate is connected to the outer ring at the bottom of the rotating ring, and multiple racks are connected to the inner ring at the bottom of the rotating ring. Multiple rotating rods are rotatably mounted on the inner ring of the fixed ring. One end of each rotating rod passes through the fixed ring and is connected to a gear, which meshes with the rack. A fan-shaped plate is connected to the surface of each rotating rod, and a polygonal plate is rotatably mounted on the other end of each rotating rod. A support ring is connected to the inner wall of the mounting cylinder below the fixed ring. A cross-shaped support plate is connected to the inner ring of the support ring, and a support rod is connected to the top of the intersection of the cross-shaped support plates, with the top of the support rod connected to the bottom of the polygonal plate.

[0007] Preferably, the plurality of said fan plates form a closed circular plane between the fixing ring and the polygonal plate.

[0008] Preferably, an air inlet pipe and an exhaust pipe are respectively connected to both sides of the sealing dome, and a valve is connected to one end of each of the air inlet pipe and the exhaust pipe.

[0009] Preferably, the ends of the intake pipe and exhaust pipe inside the sealing dome are bent downwards, toward the top of the sealing structure.

[0010] Preferably, an exhaust fan is connected inside the air intake pipe.

[0011] Preferably, a gas detection element is connected to the surface of the exhaust pipe, and the detection end of the gas detection element extends into the interior of the exhaust pipe.

[0012] Preferably, a corrugated pipe is connected to the middle end of the mounting cylinder, and the bottom end of the surface of the mounting cylinder can be configured as a thread.

[0013] Compared with the prior art, the beneficial effects of this utility model are: through the combined design of rotating ring, rack, gear, rotating rod, fan plate and polygonal plate, the sealing structure can be flexibly opened and closed. When exhaust is required, rotating the rotating ring allows gas to flow out from the fermentation box, while when exhaust is not required, the sealing structure can be tightly closed to prevent external air or impurities from entering the fermentation box. The fan plate forms a closed circular plane between the fixed ring and the polygonal plate, ensuring the stability and reliability of the sealing structure. Attached Figure Description

[0014] Figure 1 A front view schematic diagram of the sealing structure of a kitchen waste fermentation device;

[0015] Figure 2 A side sectional view of a sealing structure for a kitchen waste fermentation device;

[0016] Figure 3 An exploded structural diagram of a sealing structure for a kitchen waste fermentation device;

[0017] Figure 4 This is a side sectional schematic diagram of the sealing mechanism of a kitchen waste fermentation device.

[0018] In the diagram: 1. Mounting cylinder; 2. Sealing structure; 21. Rotating ring; 22. Annular side plate; 23. Rack; 24. Fixing ring; 25. Rotating rod; 26. Gear; 27. Fan plate; 28. Polygonal plate; 29. ​​Support ring; 30. Cross support plate; 31. Support rod; 3. Sealing dome; 4. Inlet pipe; 5. Exhaust pipe; 6. Exhaust fan; 7. Valve; 8. Bellows; 9. Gas detection element. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 The present invention provides a technical solution, including an installation cylinder 1, which is connected to the gas outlet of the fermentation box. A sealing structure 2 is rotatably provided at the top of the installation cylinder 1, and a sealing dome 3 is connected to the top of the sealing structure 2.

[0021] The sealing structure 2 includes a rotating ring 21 rotatably mounted at the top of the mounting cylinder 1 and a fixed ring 24 connected to the inner wall of the mounting cylinder 1. An annular side plate 22 is connected to the outer ring at the bottom of the rotating ring 21, and multiple racks 23 are connected to the inner ring at the bottom of the rotating ring 21. Multiple rotating rods 25 are rotatably mounted on the inner ring of the fixed ring 24. One end of each rotating rod 25 passes through the fixed ring 24 and is connected to a gear 26, which meshes with the rack 23. A fan-shaped plate 27 is connected to the surface of each rotating rod 25, and a polygonal plate 28 is rotatably mounted on the other end of each rotating rod 25. The inner wall of the mounting cylinder 1... A support ring 29 is connected below the fixed ring 24. A cross support plate 30 is connected to the inner ring of the support ring 29. A support rod 31 is connected to the top of the intersection of the cross support plates 30, and the top of the support rod 31 is connected to the bottom of the polygonal plate 28. Its function is to enable the sealing structure to open and close quickly and accurately through the relative rotation between the rotating ring 21 and the fixed ring 24, and the meshing of the gear 26 and the rack 23. This ensures that the sealing structure can be tightly closed when needed to prevent gas leakage, and can be quickly opened when exhaust is required.

[0022] Multiple sector plates 27 form a closed circular plane between the fixing ring 24 and the polygonal plate 28. The function of this closed circular plane design is to help reduce gas or liquid leakage.

[0023] An air inlet pipe 4 and an exhaust pipe 5 are respectively connected to both sides of the sealed dome 3. A valve 7 is connected to one end of both the air inlet pipe 4 and the exhaust pipe 5. The function of the valve 7 on the air inlet pipe 4 and the exhaust pipe 5 is to precisely control the inflow and outflow of gas. The valve 7 can also be used as an emergency shut-off device to quickly cut off the flow of gas in the event of gas leakage, overpressure, or other similar situations.

[0024] The intake pipe 4 and exhaust pipe 5 are bent downwards at one end inside the sealing dome 3, toward the top of the sealing structure 2. The purpose of bending downwards is to allow the incoming and outgoing gases to be more evenly distributed in the top area of ​​the sealing structure 2. This helps to reduce dead zones and eddies in the gas within the sealing structure, and improve the mixing efficiency and utilization rate of the gas.

[0025] An exhaust fan 6 is installed inside the intake pipe 4. The function of the exhaust fan 6 is to significantly improve the gas intake capacity of the intake pipe 4 and increase the air circulation inside the sealed dome 3.

[0026] A gas detection element 9 is connected to the surface of the exhaust pipe 5, and the detection end of the gas detection element 9 extends into the interior of the exhaust pipe 5. Its function is to immediately issue an early warning signal once the gas detection element 9 detects that the gas composition inside the exhaust pipe 5 exceeds the standard or that there are harmful substances, which helps relevant personnel to take measures quickly.

[0027] The mounting cylinder 1 is connected to a corrugated pipe 8 at the middle end, and the bottom end of the surface of the mounting cylinder 1 can be set as threaded. The function is that the corrugated pipe 8 has excellent flexibility and extensibility due to its unique corrugated structure, which allows the mounting cylinder 1 to adapt to different installation environments and space constraints, especially in situations where bending or moving connections are required. The addition of the corrugated pipe 8 improves the flexibility and adaptability of the entire system.

[0028] Working principle: First, the operator installs the mounting cylinder 1 onto the fermentation tank via the thread at the bottom. When the gas inside the fermentation tank expands and needs to be vented, the rotating ring 21 is rotated. The rotation of the rotating ring 21 drives the rotating rod 25 to rotate through the meshing of the rack 23 and the gear 26. The rotation of the rotating rod 25 causes the fan plate 27 to unfold between the polygonal plate 28 and the fixed ring 24, forming an opening that allows gas to pass through. This opens the valve 7 inside the exhaust pipe 5, allowing the gas to exit the sealed structure. To accelerate the gas flow, the valve 7 inside the air inlet pipe 4 and the exhaust fan 6 can be opened. When it is necessary to close the sealed structure 2, the rotating ring 21 is rotated in the opposite direction. The reverse rotation of the rotating ring 21 drives the rotating rod 25 to rotate in the opposite direction through the meshing of the rack 23 and the gear 26. The reverse rotation of the rotating rod 25 causes the fan plate 27 to close between the polygonal plate 28 and the fixed ring 24, forming a closed circular plane that prevents gas from passing through. The gas detection element 9 connected to the surface of the exhaust pipe 5 can monitor in real time whether there is a gas leak in the sealed structure.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] 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 kitchen waste fermentation device sealing structure comprising a mounting cylinder (1), characterized in that: The installation cylinder (1) is connected to the gas outlet of the fermentation tank, and a sealing structure (2) is rotatably arranged at the top end of the installation cylinder (1). The sealing structure (2) comprises a rotating ring (21) rotatably arranged at the top end of the installation cylinder (1) and a fixed ring (24) connected to the inner wall of the installation cylinder (1), the outer circle of the bottom end of the rotating ring (21) is connected with an annular side plate (22), the inner circle of the bottom end of the rotating ring (21) is connected with a plurality of racks (23), the inner circle of the fixed ring (24) is rotatably provided with a plurality of rotating rods (25), one end of the rotating rod (25) penetrates the fixed ring (24) and is connected with a gear (26), and the gear (26) is engaged with the rack (23), the surface of the rotating rod (25) is connected with a fan plate (27), the other end of the rotating rod (25) is rotatably provided with a multi-edge plate (28), the inner wall of the installation cylinder (1) below the fixed ring (24) is connected with a support ring (29), the inner circle of the support ring (29) is connected with a cross support plate (30), the top end of the intersection of the cross support plate (30) is connected with a support rod (31), and the top end of the support rod (31) is connected with the bottom end of the multi-edge plate (28).

2. The kitchen waste fermentation device sealing structure according to claim 1, characterized in that: A plurality of the fan plates (27) form a closed circular plane between the fixed ring (24) and the multi-edge plate (28).

3. The kitchen waste fermentation device sealing structure according to claim 1, characterized in that: The sealing dome (3) is connected with an air inlet pipe (4) and an air outlet pipe (5) on both sides, respectively, and the inside of the air inlet pipe (4) and the air outlet pipe (5) is connected with a valve (7) at one end.

4. The kitchen waste fermentation device sealing structure according to claim 3, characterized in that: The inside of the air inlet pipe (4) and the air outlet pipe (5) at one end inside the sealing dome (3) is bent downward, towards the top end of the sealing structure (2).

5. The kitchen waste fermentation device sealing structure according to claim 3, characterized in that: The inside of the air inlet pipe (4) is connected with an air suction fan (6).

6. The kitchen waste fermentation device sealing structure according to claim 3, characterized in that: The surface of the air outlet pipe (5) is connected with a gas detection member (9), and the detection end of the gas detection member (9) extends into the air outlet pipe (5).

7. The kitchen waste fermentation device sealing structure according to claim 1, characterized in that: The middle end of the installation cylinder (1) is connected with a corrugated pipe (8), and the surface of the bottom end of the installation cylinder (1) can be threaded.