Lightweight stainless steel skeleton composite cellar cover

By using a lightweight stainless steel frame composite cellar cover, combined with a sealing ring and a layer of chemical fiber cloth, the problems of heavy weight, inconvenient operation, and poor sealing of traditional cellar covers have been solved. This has achieved lightweight and stable sealing of the cellar cover, improving fermentation efficiency and alcohol yield.

CN224678018UActive Publication Date: 2026-08-25ANHUI GOLDEN SEED WINERY CO LTD
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Patent Information

Application Number
CN202521837121.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2026-08-25
Estimated Expiration
2035-08-28

AI Technical Summary

Technical Problem

Traditional cellar covers are heavy, costly to manufacture, inconvenient to operate, and have poor sealing properties, which affect fermentation results and alcohol yield. They are also difficult to cope with changes in air pressure inside the cellar.

Method used

The lightweight stainless steel frame composite pit cover uses a sealing ring installed at the connection between the bottom frame and the pit, combined with the chemical fiber cloth layer and stainless steel frame to form a frame structure, which increases the sealing and stability. It is also equipped with an exhaust valve and a thermometer to monitor the conditions inside the pit.

Benefits of technology

It reduces the weight and manufacturing cost of the fermentation pit cover, improves ease of operation, ensures airtightness and stable fermentation environment, reduces labor intensity and water consumption, and improves fermentation efficiency and alcohol yield.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a kind of lightweight stainless steel framework composite cellar pool cover.The lightweight stainless steel framework composite cellar pool cover includes: cellar pool;The butt joint is opened in the top of cellar pool, the inside of butt joint is equipped with sealing ring, the top of cellar pool is equipped with bottom frame, the top of bottom frame is equipped with stainless steel framework, the top of bottom frame is equipped with four chemical fiber cloth layers, the outer surface of bottom frame is fixedly connected with butt block at four corners position.The utility model provides a kind of lightweight stainless steel framework composite cellar pool cover, equipped with exhaust valve, when the air pressure in cellar pool is too high, it is automatically exhausted, avoid air pressure too high to damage seal or damage cellar pool, ensure that the sealing state is stable, guarantee fermentation safety, the temperature meter's insertion hole is set, can real-time monitoring temperature in cellar pool, it is convenient to adjust fermentation condition in time, it is favorable to stabilize fermentation effect and liquor yield, finally improve labor efficiency, reduce labor intensity.
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Description

Technical Field

[0001] This utility model relates to the field of composite cellar cover technology, and in particular to a lightweight stainless steel frame composite cellar cover. Background Technology

[0002] Large cellars, also known as cellars or cellars, are underground fermentation equipment used in the brewing of baijiu (Chinese liquor). They have constant temperature characteristics and are mainly used in the production process of Dongjiu. Specifically, they refer to alkaline fermentation tanks with a volume of 17 to 23 cubic meters used to make fragrant mash. The industry usually refers to fermentation tanks with a volume of more than 10 cubic meters as large cellars.

[0003] In the process of brewing baijiu, the sealing of the fermentation pit plays a crucial role in the fermentation effect. The main function of the pit cover is to cover the pit opening to prevent external impurities and rainwater from entering, while also keeping it warm and moist to ensure a stable fermentation environment.

[0004] Traditional methods of sealing fermentation pits have many problems. For example, the pit covers made of all-stainless steel welded structures are expensive to manufacture due to the large amount of stainless steel used, and the overall weight is heavy. Opening and closing them requires multiple people to work together, which greatly increases the labor intensity and difficulty of operation. At the same time, the traditional sealed fermentation process of baijiu pits requires a large amount of pit mud for manual sealing, and the pits need to be maintained and repaired every day. This not only consumes a lot of manpower and resources, but problems such as cracking of the pit mud can also affect the sealing of the pit, thus affecting the fermentation effect and the yield of alcohol. In addition, some existing pit covers are difficult to maintain a good seal when faced with changes in the air pressure inside the pit, resulting in an unstable fermentation environment.

[0005] Therefore, it is necessary to provide a lightweight stainless steel frame composite cellar cover to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a lightweight stainless steel frame composite cellar cover, which solves the problems of traditional cellar covers being costly and heavy, inconvenient to operate manually, and having poor sealing at the connection between the cellar cover and the cellar, which can lead to an unstable fermentation environment.

[0007] To solve the above-mentioned technical problems, the lightweight stainless steel frame composite cellar cover provided by this utility model includes: a cellar;

[0008] The interface is located at the top of the pit. A sealing ring is installed inside the interface. A bottom frame is installed at the top of the pit. A stainless steel frame is installed at the top of the bottom frame. Four layers of chemical fiber cloth are installed at the top of the bottom frame. A docking block is fixedly connected to the four corners of the outer surface of the bottom frame. A stainless steel chain is installed at the top of each docking block through a connecting component. A hanging ring is installed at the top of each stainless steel chain.

[0009] A top cover is installed on the top of a stainless steel frame. The top of the top cover has an insertion hole, and a temperature rack is installed inside the insertion hole. An exhaust valve is installed on the top of the top cover.

[0010] The fermentation pit cover consists of a base frame, a stainless steel skeleton, a layer of synthetic fiber fabric, and a top cover. The bottom of the base frame is joined to the interface, and a sealing ring is used to increase the seal. The synthetic fiber fabric seals all four sides of the stainless steel skeleton. The stainless steel skeleton is made of stainless steel and welded into a frame structure to provide sufficient strength and support, ensuring overall stability while reducing the amount of stainless steel used, thus achieving lightweighting. The synthetic fiber fabric is made of polyester woven fabric, which has advantages such as high strength, wear resistance, and chemical corrosion resistance, and will not adversely affect the fermentation of baijiu. The synthetic fiber fabric is tightly bonded to the surface of the stainless steel skeleton through a high-temperature heat sealing process to form a whole, which further enhances the strength of the fermentation pit cover. It also provides excellent sealing. The pit edge sealing structure has an interface at the edge of the pit. The shape and size of the interface are adapted to the bottom frame of the stainless steel skeleton of the pit cover, so that the pit cover can be accurately embedded. A silicone sealing ring is fixed in the interface. The silicone sealing ring has good elasticity and sealing performance. When the pit cover is embedded in the interface, it can fit tightly with the edge of the pit cover, effectively preventing air and other impurities from entering the pit and preventing gas leakage, thus ensuring the pit's airtightness. In order to better monitor the fermentation in the pit, a thermometer insertion hole is provided on the pit cover, which is convenient for inserting a thermometer to monitor the temperature changes in the pit in real time, so as to adjust the fermentation conditions in a timely manner.

[0011] Preferably, a monitoring component is installed on the top of the top cover. The monitoring component includes a fixed base and a monitoring element, which is used to monitor pressure changes inside the pit.

[0012] Preferably, the connecting assembly includes a fixing plate, a docking ring, and a hook, wherein the fixing plate is used to mount the docking ring on top of the docking block;

[0013] The hook is attached to the outer surface of the mating ring and can be removed.

[0014] Preferably, the depth of the interface is 5-8cm, and the cross-section of the sealing ring is semi-circular with a diameter of 3-5mm.

[0015] Preferably, a first bracket is installed on each of the four sides of the pit near the top, and an electromagnet is installed on the top of each first bracket;

[0016] When an electromagnet is energized, it generates an electromagnetic attraction.

[0017] Preferably, a second bracket is installed on each of the four sides of the bottom frame near the bottom, and a magnetic strip is installed on the bottom of each second bracket;

[0018] The magnetic strip itself is magnetic.

[0019] Compared with related technologies, the lightweight stainless steel frame composite cellar cover provided by this utility model has the following beneficial effects:

[0020] This utility model provides a lightweight stainless steel frame composite pit cover. To reduce the weight of the pit cover and facilitate worker operation, a sealing ring is first installed at the interface between the bottom frame and the pit to increase the seal between them. A stainless steel frame is then installed on the top of the bottom frame, and multiple layers of synthetic fiber cloth are installed on the four sides of the stainless steel frame. This reduces the overall weight while ensuring a tight seal. The top of the stainless steel frame is sealed by a top cover. A hole in the top of the top cover allows for the installation of a thermometer, and an exhaust valve on the top of the top cover allows for venting. This design, using a frame-like stainless steel frame, reduces the amount of stainless steel used, lowers manufacturing costs, and reduces the overall weight. It also allows for opening and closing operations without the need for multiple people, reducing labor intensity and improving ease of operation. Furthermore, it eliminates the need for large amounts of pit mud and manual sealing, saving resources. The daily maintenance process for fermentation pits is eliminated, saving manpower and resources. It prevents the pit mud from drying and cracking, ensuring a stable fermentation environment. The sealing rings at the pit edges, combined with the tight integration of the synthetic fiber cloth layer and stainless steel frame, form a robust sealing system that effectively prevents air and impurities from entering and internal gas leakage. It eliminates the reliance on continuous water supply found in traditional water seals, reducing the need for frequent water replenishment and maintenance, thus minimizing water consumption. It also eliminates manual operations such as water replenishment and cleaning of the water seal trough, reducing labor input. An exhaust valve automatically releases air when the pressure inside the pit is too high, preventing damage to the seal or the pit itself and ensuring a stable seal for safe fermentation. A thermometer socket allows for real-time monitoring of the pit temperature, facilitating timely adjustments to fermentation conditions, stabilizing fermentation results and alcohol yield, ultimately improving labor efficiency and reducing labor intensity. Attached Figure Description

[0021] Figure 1 A schematic diagram of the first embodiment of the lightweight stainless steel frame composite cellar cover provided by this utility model;

[0022] Figure 2 A schematic diagram of the sealing ring is provided for this utility model;

[0023] Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown;

[0024] Figure 4 A schematic diagram of the second embodiment of the lightweight stainless steel frame composite cellar cover provided by this utility model;

[0025] Figure 5 Provided for this utility model Figure 5 An enlarged view of point B shown.

[0026] The diagram is labeled as follows: 1. Pit, 2. Bottom frame, 3. Chemical fiber cloth layer, 4. Connecting block, 5. Connecting component, 501. Fixing plate, 502. Connecting ring, 503. Hook, 6. Stainless steel chain, 7. Hanging ring, 8. Exhaust valve, 9. Monitoring component, 901. Fixing base, 902. Monitoring component, 10. Thermometer, 11. Top cover, 12. Stainless steel frame, 13. Insertion hole, 14. Sealing ring, 15. First bracket, 16. Electromagnet, 17. Magnetic strip, 18. Connecting interface, 19. Second bracket. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] First Embodiment

[0029] Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,in, Figure 1 A schematic diagram of the first embodiment of the lightweight stainless steel frame composite cellar cover provided by this utility model; Figure 2 A schematic diagram of the sealing ring is provided for this utility model; Figure 3 Provided for this utility model Figure 2 The enlarged view at point A is shown. The lightweight stainless steel frame composite pit cover includes: pit 1;

[0030] Interface 18 is located at the top of the pit 1. A sealing ring 14 is installed inside the interface 18. A bottom frame 2 is installed at the top of the pit 1. A stainless steel frame 12 is installed at the top of the bottom frame 2. Four layers of chemical fiber cloth 3 are installed at the top of the bottom frame 2. A docking block 4 is fixedly connected to the four corners of the outer surface of the bottom frame 2. A stainless steel chain 6 is installed at the top of each docking block 4 through a connecting component 5. A hanging ring 7 is installed at the top of each stainless steel chain 6.

[0031] Top cover 11, which is installed on the top of stainless steel frame 12. The top of the top cover 11 has an insertion hole 13, and a temperature rack 10 is installed inside the insertion hole 13. An exhaust valve 8 is installed on the top of the top cover 11.

[0032] The cellar cover consists of a bottom frame 2, a stainless steel skeleton 12, a chemical fiber cloth layer 3, and a top cover 11. The bottom of the bottom frame 2 is joined to the interface 18, and a sealing ring 14 is used to increase the seal. The chemical fiber cloth layer 3 seals all four sides of the stainless steel skeleton 12. The stainless steel skeleton 12 is made of stainless steel and welded into a frame structure to provide sufficient strength and support, ensuring overall stability while reducing the amount of stainless steel used, thus achieving lightweighting. The chemical fiber cloth layer 3 is made of polyester fiber woven fabric, which has advantages such as high strength, wear resistance, and chemical corrosion resistance, and will not have an adverse effect on the fermentation of baijiu. The cover is bonded tightly to the stainless steel frame surface through a high-temperature heat-sealing process, forming a unified whole. This not only further enhances the strength of the pit cover but also provides excellent sealing. The pit 1 edge sealing structure features an interface 18 at its edge. The shape and size of the interface 18 are adapted to the bottom frame 2 of the stainless steel frame 12 of the pit cover, allowing for accurate insertion. A silicone sealing ring 14 is fixed within the interface 18. The silicone sealing ring 14 possesses excellent elasticity and sealing properties, ensuring a tight fit with the edge of the pit cover when inserted into the interface 18, effectively preventing air and other impurities from entering the pit. To prevent gas leakage from the fermentation pit and ensure its airtightness, a thermometer insertion hole 13 is installed on the pit cover for better monitoring of fermentation. This allows for real-time monitoring of temperature changes within the pit, enabling timely adjustments to fermentation conditions. An exhaust valve 8 is also installed on the pit cover. When the gas pressure inside the pit is too high, the exhaust valve 8 automatically opens to release excess gas, preventing damage to the sealing effect or the pit due to excessive pressure and improving the safety of the pit cover. The chemical fiber cloth layer 3 is made of 2-3mm thick polyester fiber woven fabric. This polyester fiber woven fabric is then applied in a high-temperature heat-sealing device. The cover is placed on the surface of the stainless steel frame, and the heat sealing temperature is set to 180-200℃, with a heat sealing time of 30-40 seconds, so that the chemical fiber cloth layer is tightly bonded to the surface of the stainless steel frame to form a solid whole. Thermometer 10 and insertion hole 13 are set on the top of the cover. One end of thermometer 10 is connected to the inside of the pit 1, and the other end protrudes 5-8cm from the surface of the top cover 11 for easy insertion of thermometer 10. The opening pressure of exhaust valve 8 is set to 0.02-0.03MPa. When the air pressure in pit 1 reaches the set value, exhaust valve 8 automatically opens to exhaust air, and automatically closes after the air pressure drops, ensuring that the air pressure in pit 1 is stable within a suitable range.

[0033] A monitoring component 9 is installed on the top of the top cover 11. The monitoring component 9 includes a fixed base 901 and a monitoring component 902. The monitoring component 902 is used to monitor the pressure changes inside the pit 1.

[0034] The monitoring end of the monitoring component 902 penetrates the top cover 11.

[0035] The connecting assembly 5 includes a fixing plate 501, a docking ring 502, and a hook 503. The fixing plate 501 is used to install the docking ring 502 on the top of the docking block 4.

[0036] Hook 503 is attached to the outer surface of the docking ring 502 and can be removed.

[0037] The depth of the interface 18 is 5-8cm, and the cross-section of the sealing ring 14 is semi-circular with a diameter of 3-5mm;

[0038] The sealing ring 14 is squeezed by the bottom frame 2 to ensure a tight seal.

[0039] The working principle of the lightweight stainless steel frame composite cellar cover provided by this utility model is as follows:

[0040] First, a sealing ring 14 is installed in the interface 18 at the connection between the bottom frame 2 and the pit 1 to increase the sealing between the bottom frame 2 and the pit 1. A stainless steel frame 12 is installed on the top of the bottom frame 2. Then, multiple layers of chemical fiber cloth 3 are installed on the four sides of the stainless steel frame 12 to reduce the overall weight while ensuring sealing. The top of the stainless steel frame 12 is sealed by the top cover 11. The insertion hole 13 on the top of the top cover 11 can be used to install a thermometer 10. At the same time, the exhaust valve 8 on the top of the top cover 11 can be opened to exhaust air. In actual use, workers or hoisting structures only need to use stainless steel chains to lift the pit cover composed of the top structure of the bottom frame 2 and connect it with the pit 1.

[0041] Compared with related technologies, the lightweight stainless steel frame composite cellar cover provided by this utility model has the following beneficial effects:

[0042] To reduce the weight of the pit cover and facilitate worker operation, a sealing ring 14 is first installed in the interface 18 at the connection between the bottom frame 2 and the pit 1, which increases the sealing between the bottom frame 2 and the pit 1. A stainless steel frame 12 is then installed on the top of the bottom frame 2, and multiple layers of chemical fiber cloth 3 are installed on the four sides of the stainless steel frame 12. This reduces the overall weight while ensuring sealing. The top of the stainless steel frame 12 is sealed by a top cover 11. The insertion hole 13 on the top of the top cover 11 can be used to install a thermometer 10. At the same time, the exhaust valve 8 on the top of the top cover 11 can be opened to allow exhaust. This design, using a frame-like stainless steel frame 12, reduces the amount of stainless steel used, lowers manufacturing costs, and reduces the overall weight. It also allows for opening and closing operations without the need for multiple people, reducing labor intensity, improving operational convenience, eliminating the need for large amounts of pit mud and manual sealing, and saving time and effort. The daily fermentation pit maintenance process saves manpower and resources, avoids affecting the sealing performance due to cracking of the pit mud, and ensures a stable fermentation environment. The sealing ring 14 in the interface 18 of the pit edge fits in, and the combination of the chemical fiber cloth layer 3 and the stainless steel frame 12 forms a good sealing system, effectively preventing air and impurities from entering and internal gas leakage. It eliminates the dependence on continuous water supply of traditional water seals, eliminating the need for frequent water replenishment and maintenance, reducing water consumption, and saving manual operations such as water replenishment and cleaning of water seal tanks, reducing labor input. It is equipped with an exhaust valve to automatically release air when the air pressure in the pit is too high, preventing the air pressure from damaging the seal or the pit, ensuring a stable sealing state, and ensuring fermentation safety. The thermometer 10 socket 13 is set to monitor the temperature in the pit in real time, which facilitates timely adjustment of fermentation conditions, helps stabilize the fermentation effect and alcohol yield, and ultimately improves labor efficiency and reduces labor intensity.

[0043] Second Embodiment

[0044] Please refer to the following: Figures 4-5 , Figure 4 A schematic diagram of the second embodiment of the lightweight stainless steel frame composite cellar cover provided by this utility model; Figure 5 Provided for this utility model Figure 5 The enlarged view at point B shows a lightweight stainless steel frame composite cellar cover based on the first embodiment of this application. The second embodiment of this application proposes another lightweight stainless steel frame composite cellar cover. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the independent implementation of the first embodiment.

[0045] Specifically, the difference in the lightweight stainless steel frame composite cellar cover provided in the second embodiment of this application is that a first bracket 15 is installed on each of the four sides of the cellar 1 near the top, and an electromagnet 16 is installed on the top of each first bracket 15.

[0046] When the electromagnet 16 is energized, it generates electromagnetic attraction; when the power is off, the electromagnet 16 loses its magnetism.

[0047] The bottom frame 2 has a second bracket 19 installed on each of its four sides near the bottom, and a magnetic strip 17 is installed on the bottom of each second bracket 19.

[0048] The magnetic strip 17 is magnetic, and the two attract each other after the electromagnet 16 is energized, which can increase the stability of the connection of the bottom frame 2.

[0049] Compared with related technologies, the lightweight stainless steel frame composite cellar cover provided by this utility model has the following beneficial effects:

[0050] To improve the stability of the connection between the pit 1 and the pit cover, an electromagnet 16 is installed on each of the four sides of the pit 1 via a first bracket 15. On the four sides of the bottom frame 2 of the pit cover, a magnetic strip 17 that can attract the energized electromagnet 16 is installed via a second bracket 19. After the pit cover and the pit 1 are connected, the electromagnet 16 is energized and attracts the magnetic strip 17, which can ensure the stability of the connection between the pit 1 and the pit cover. When it is necessary to remove the pit cover, it is only necessary to de-energize the electromagnet 16. This design helps to increase the stability of the connection between the pit cover and the pit 1.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lightweight stainless steel skeleton composite pit cover, characterized by, Include: Cellar; The docking interface is opened at the top of the cellar, the inside of the docking interface is installed with a sealing ring, the top of the cellar is installed with a bottom frame, the top of the bottom frame is installed with a stainless steel framework, the top of the bottom frame is installed with four chemical fiber cloth layers, the outer surface of the bottom frame is fixedly connected with a docking block at four corners, the top of each docking block is installed with a stainless steel chain through a connecting assembly, and the top of each stainless steel chain is installed with a hanging ring; The top cover is installed at the top end of the stainless steel framework, the top of the top cover is provided with a jack, the inside of the jack is installed with a temperature frame, and the top of the top cover is installed with an exhaust valve.

2. The lightweight stainless steel skeleton composite pit cover according to claim 1, characterized in that, The top of the top cover is installed with a monitoring assembly, the monitoring assembly comprises a fixed base and a monitoring component, and the monitoring component is used for monitoring the pressure change in the cellar.

3. The lightweight stainless steel skeleton composite pit cover according to claim 1, characterized in that, The connecting assembly comprises a fixed disc, a docking ring and a hook, and the fixed disc is used for installing the docking ring on the top of the docking block.

4. The lightweight stainless steel skeleton composite pit cover according to claim 1, wherein The depth of the docking interface is 5-8 cm, and the cross section of the sealing ring is semicircular with a diameter of 3-5 mm.

5. The lightweight stainless steel skeleton composite pit cover according to claim 1, wherein The four sides of the cellar are installed with a first support near the top, and the top of each first support is installed with an electromagnet.

6. The lightweight stainless steel skeleton composite pit cover according to claim 1, wherein The four sides of the bottom frame are installed with a second support near the bottom, and the bottom of each second support is installed with a magnetic stripe.