Sealing mechanism for methane tank cover

Abstract

The utility model relates to a sealing mechanism for a methane tank cover. According to the sealing mechanism for the biogas digester cover, by arranging the sealing cover and the base, the effect of sealing a biogas digester can be effectively achieved in the using process of the sealing mechanism, when a worker controls the sealing cover and the base to lock the sealing cover and the base, the sealing unit can be driven, the sealing performance between the sealing cover and the base is improved, and the sealing effect of the biogas digester is improved. The condition of methane leakage is further avoided; by arranging the sealing groove and the expansion air bag, in the using process, when a worker controls the sealing cover and the base to be attached to each other, the expansion air bag can be just located in the sealing groove, and meanwhile when the worker locks the sealing cover and the base, the inflation piece can achieve the effect of inflating the expansion air bag; therefore, the expansion air bag can be attached to the sealing groove in all directions.

Description

A sealing mechanism for biogas digester covers Technical Field

[0001] This utility model relates to the field of biogas digester technology, specifically a sealing mechanism for biogas digester covers. Background Technology

[0002] Biogas digesters, as an important energy production facility, play a crucial role in agriculture, rural energy utilization, and environmental protection. They are devices that utilize anaerobic fermentation to decompose organic waste (such as human and animal excrement, crop straw, and kitchen waste) in a specific anaerobic environment, thereby producing biogas.

[0003] Installing a sealed cover is crucial for the operation of a biogas digester. Biogas production relies on a strictly anaerobic fermentation environment; only under conditions of complete air isolation can specific anaerobic microorganisms effectively decompose organic matter into biogas. The main function of the sealed cover is to ensure the formation and maintenance of this anaerobic environment inside the biogas digester. On one hand, it effectively prevents outside air from entering the digester, avoiding contact between oxygen and the fermentation materials and microorganisms.

[0004] However, in existing technologies, biogas digester cover sealing mechanisms generally suffer from inadequate sealing. Many traditional sealing covers have simple designs, and the sealing materials are of poor quality or age quickly, making it difficult to maintain good sealing performance over a long period. For example, some sealing covers use only simple rubber gaskets for sealing, resulting in poor fit with the biogas digester body and gaps that allow biogas to escape. Therefore, a sealing mechanism for biogas digester covers is proposed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a sealing mechanism for biogas digester covers, which has advantages such as good sealing performance and solves the problem of poor sealing of biogas digester covers in existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sealing mechanism for a biogas digester cover, comprising a biogas digester, wherein a connection port is provided on the top of the biogas digester, and a sealing component for sealing is provided on the connection port, wherein the sealing component includes a base installed on the connection port, and a sealing cover is hinged on the base.

[0007] The sealing cover includes a cover plate for installation and sealing, the cover plate is provided with a plurality of locking elements for locking, and a handle for easy lifting;

[0008] The locking component includes a locking handle rotatably connected to the cover plate. The top of the locking handle is provided with a connecting rod that facilitates rotation by the operator, and the bottom of the locking handle is provided with a limiting post for limiting the position.

[0009] The base has a placement groove for easy insertion of the locking handle, and a limiting groove for easy insertion of the limiting post is provided on one side of the placement groove. The base is also provided with a sealing unit to enhance the sealing effect.

[0010] Furthermore, the sealing unit includes an inflatable airbag mounted on the base, and the inflatable airbag is provided with a plurality of air-filling components for inflating it.

[0011] Furthermore, the bottom of the cover plate is provided with a sealing groove that works in conjunction with the inflatable airbag to create a sealing effect.

[0012] Furthermore, the gas filling component includes a cylinder installed in the base, and a baffle is provided inside the cylinder, with a rod slidably connected to the baffle.

[0013] The bottom of the rod is located in the inner cavity of the cylinder, and a transmission platform is provided at the bottom of the rod. The transmission platform and the inner cavity of the cylinder form an air filling chamber. A piston that is easy to press is provided at the top of the rod. A connecting air pipe is inserted into the air filling chamber, and the other end of the connecting air pipe is connected to the expansion air bladder.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] I. The sealing mechanism for biogas digester covers, by setting a sealing cover and a base, can effectively seal the biogas digester during use. When the operator controls the sealing cover and base to lock them, it can drive the sealing unit to increase the sealing between the sealing cover and the base, further preventing biogas leakage.

[0016] II. The sealing mechanism for the biogas digester cover is equipped with a sealing groove and an expansion air bladder. During use, when the operator controls the sealing cover and the base to fit together, the expansion air bladder can be located inside the sealing groove. At the same time, when the operator locks the sealing cover and the base, the air filling device can inflate the expansion air bladder, so that the expansion air bladder can fit fully with the sealing groove. Attached Figure Description

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

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

[0019] Figure 3 is a schematic diagram of the cover plate structure of this utility model;

[0020] Figure 4 is a schematic diagram of the bottom structure of the cover plate of this utility model;

[0021] Figure 5 is a schematic diagram of the sealing unit structure of this utility model;

[0022] Figure 6 is a schematic diagram of the structure of the gas filling component of this utility model;

[0023] Figure 7 is an enlarged view of the structure at point A in Figure 2A of this utility model;

[0024] Figure 8 is an enlarged view of the structure at point 3A of this utility model.

[0025] In the diagram: 1. Biogas digester; 11. Connection port; 2. Sealing assembly; 21. Sealing cover; 211. Cover plate; 212. Locking element; 2121. Connecting rod; 2122. Locking handle; 2123. Limiting post; 213. Lifting handle; 214. Sealing groove; 22. Base; 221. Placement groove; 222. Limiting groove; 3. Sealing unit; 31. Inflatable air bladder; 32. Gas filling component; 321. Cylinder; 322. Partition plate; 323. Rod; 324. Piston; 325. Transmission platform; 326. Gas filling chamber; 327. Connecting gas pipe. Detailed Implementation

[0026] 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.

[0027] Example 1:

[0028] Please refer to Figures 1-8. In this embodiment, a sealing mechanism for a biogas digester cover includes a biogas digester 1. The top of the biogas digester 1 is provided with a connection port 11. A sealing component 2 for sealing is provided on the connection port 11. The sealing component 2 includes a base 22 installed on the connection port 11. A sealing cover 21 is hinged to the base 22. The sealing cover 21 includes a cover plate 211 for installation and sealing. The cover plate 211 is provided with a plurality of locking elements 212 for locking and a handle 213 for easy lifting. The locking component 212 includes a locking handle 2122 rotatably connected to the cover plate 211. The top of the locking handle 2122 is provided with a connecting rod 2121 for easy rotation by the operator, and the bottom of the locking handle 2122 is provided with a limiting post 2123 for limiting the position. The base 22 is provided with a placement groove 221 for easy insertion of the locking handle 2122. One side of the placement groove 221 is provided with a limiting groove 222 for easy insertion of the limiting post 2123. The base 22 is also provided with a sealing unit 3 for increasing the sealing effect. In actual use, when it is necessary to seal the biogas digester 1, the lifting handle 213 can be pulled to cover the connection port 11, so that the sealing cover 21 and the base 22 are in contact. During this process, the cover 211 will squeeze the sealing unit 3, thereby increasing the sealing effect of the sealing unit 3. At the same time, when the cover 211 and the base 22 are in contact, the operator can rotate the connecting rod 2121 to drive the locking handle 2122 to rotate. During the rotation of the locking handle 2122, the limiting post 2123 can be driven into the limiting groove 222 and slide. During the sliding of the limiting post 2123, the degree of contact between the cover 211 and the base 22 can be further increased, and the sealing unit 3 can be further squeezed, thereby ensuring its sealing performance after closing.

[0029] It is worth noting that the bottom of the limiting groove 222 is provided with a limiting groove for limiting the limiting post 2123, thereby ensuring that the limiting post 2123 can avoid sliding after rotating to the bottom of the limiting groove 222.

[0030] The technical effects of the above embodiments are as follows: by setting the sealing cover 21 and the base 22, the biogas digester 1 can be effectively sealed during use. When the operator controls the sealing cover 21 and the base 22 to lock them, the sealing unit 3 can be driven to increase the sealing between the sealing cover 21 and the base 22, further preventing biogas leakage.

[0031] As a preferred technical solution in this embodiment: the sealing unit 3 includes an inflatable airbag 31 mounted on the base 22, and the inflatable airbag 31 is provided with a plurality of air-filling components 32 for inflating it. The bottom of the cover plate 211 is provided with a sealing groove 214 that cooperates with the inflatable airbag 31 to form a sealing effect. With this arrangement, during use, when the operator controls the sealing cover 21 and the base 22 to fit together, the inflatable airbag 31 can be located exactly inside the sealing groove 214. At the same time, when the operator locks the sealing cover 21 and the base 22, the air-filling components 32 can inflate the inflatable airbag 31, so that the inflatable airbag 31 can fit with the sealing groove 214 in all directions.

[0032] As a preferred technical solution in this embodiment: the gas filling component 32 includes a cylinder 321 installed in the base 22, a partition 322 is provided inside the cylinder 321, and a rod 323 is slidably connected to the partition 322; the bottom of the rod 323 is located in the inner cavity of the cylinder 321, and a transmission platform 325 is provided at its bottom. The transmission platform 325 and the inner cavity of the cylinder 321 form a gas filling chamber 326. A piston 324 is provided at the top of the rod 323 for easy pressing. A connecting air pipe 327 is inserted into the gas filling chamber 326, and the other end of the connecting air pipe 327 is kept in communication with the expansion air bag 31. In actual use, the operator can control the locking element 212 to achieve the pressing effect between the cover plate 211 and the base 22. During this process, the cover plate 211 will press the piston 324, so that the piston 324 can drive the rod 323 and the transmission table 325 to produce a downward displacement effect. During the downward displacement of the transmission table 325, the gas in the gas filling chamber 326 can be injected into the expansion bladder 31 through the connecting gas pipe 327, so that the expansion bladder 31 will produce an expansion effect. During the expansion of the expansion bladder 31, the fit between it and the sealing groove 214 can be more tight, thus ensuring the sealing effect of the biogas digester 1 during use.

[0033] 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 sealing mechanism for a biogas digester cover, comprising a biogas digester (1), wherein the top of the biogas digester (1) is provided with a connection port (11), characterized in that: The connection port (11) is provided with a sealing assembly (2) for sealing. The sealing assembly (2) includes a base (22) mounted on the connection port (11), and a sealing cover (21) is hinged on the base (22). The sealing cover (21) includes a cover plate (211) for installation and sealing. The cover plate (211) is provided with a plurality of locking elements (212) for locking, and a handle (213) for easy lifting. The locking elements (212) include a locking handle rotatably connected to the cover plate (211). The top of the locking handle (2122) is provided with a connecting rod (2121) for easy rotation by the operator, and the bottom of the locking handle (2122) is provided with a limiting post (2123) for limiting the position; the base (22) is provided with a placement groove (221) for easy insertion of the locking handle (2122), and a limiting groove (222) for easy insertion of the limiting post (2123) is provided on one side of the placement groove (221); the base (22) is also provided with a sealing unit (3) for increasing the sealing effect.

2. The sealing mechanism for a biogas digester cover according to claim 1, characterized in that: The sealing unit (3) includes an inflatable airbag (31) mounted on a base (22), and the inflatable airbag (31) is provided with a plurality of air-filling components (32) for inflating it.

3. A sealing mechanism for a biogas digester cover according to claim 2, characterized in that: The bottom of the cover plate (211) is provided with a sealing groove (214) that works with the inflatable airbag (31) to form a sealing effect.

4. A sealing mechanism for a biogas digester cover according to claim 3, characterized in that: The gas filling component (32) includes a cylinder (321) installed in the base (22). A partition (322) is provided inside the cylinder (321), and a rod (323) is slidably connected to the partition (322). The bottom of the rod (323) is located in the inner cavity of the cylinder (321), and a transmission platform (325) is provided at its bottom. The transmission platform (325) and the inner cavity of the cylinder (321) form a gas filling chamber (326). A piston (324) is provided at the top of the rod (323) for easy pressing. A connecting air pipe (327) is inserted into the gas filling chamber (326), and the other end of the connecting air pipe (327) is connected to the expansion air bag (31).

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