An extraction tank with a rotating arched lid quick-opening structure

By employing a cover plate assembly, an arched cover assembly, and a transmission assembly in the extraction tank, and utilizing rubber ring expansion sealing, the problem of decreased sealing performance caused by high friction of the sealing ring was solved, thereby improving sealing performance and increasing production efficiency.

CN224506326UActive Publication Date: 2026-07-17ZHEJIANG ZHANGDA LIGHT IND MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZHANGDA LIGHT IND MACHINERY
Filing Date
2025-09-30
Publication Date
2026-07-17

Smart Images

  • Figure CN224506326U_ABST
    Figure CN224506326U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of extraction tank technology, and in particular to an extraction tank with a rotating arched cover quick-opening structure. It includes an extraction tank, a cover plate assembly fixedly connected to the top of the extraction tank, an arched cover assembly spirally mounted on the upper end of the cover plate assembly, and a transmission assembly installed inside the cover plate assembly. The cover plate assembly includes a cover shell, an extension cylinder fixedly connected to the top of the cover shell by bolts, and feeding ports opened inside both the cover shell and the extension cylinder. A first spiral strip and a second spiral strip are fixedly connected to the outer side of the extension cylinder. An annular groove and a guide groove are opened inside the extension cylinder. An annular rubber sheet is fixedly connected to the upper end of the annular groove in the extension cylinder. The transmission assembly includes a rubber ring, and a first fixing ring is fixedly connected to the bottom end of the rubber ring. In this utility model, the device adopts a method of fixing first and then expanding for sealing, reducing the friction of the sealing ring, reducing wear and cracking, extending service life, ensuring sealing and safety performance, and improving production efficiency and product quality.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of extraction tank technology, specifically an extraction tank with a quick-opening rotating arched lid structure. Background Technology

[0002] Extraction tanks are a key piece of equipment in the winemaking industry. They are mainly used to extract the effective components from the raw materials through processes such as heating and soaking to prepare wine. They typically have good sealing, heating systems, and stirring devices to ensure that the extraction process is efficient and uniform, while also ensuring the quality and flavor of the wine. The extraction tank with a rotating arched lid and quick-opening structure is a piece of equipment used in the winemaking industry. Its main feature is that the lid adopts a rotating arched design and is equipped with a quick-opening structure, which facilitates rapid opening and closing. This design not only makes operation convenient but also improves production efficiency. In extraction tanks with a rotating dome quick-opening structure, sealing rings are usually installed at the contact point between the dome and the tank body to ensure the tank's sealing performance. However, since the dome needs to be rotated and opened frequently, this rotational movement will cause relatively large friction between the sealing ring and the tank body. Over time, this continuous friction will cause cracks in the sealing ring, thereby reducing its sealing performance and increasing the risk of leakage. Therefore, an extraction tank with a rotating dome quick-opening structure is proposed to address the above problems. Utility Model Content

[0003] The purpose of this invention is to provide an extraction tank with a quick-opening rotating dome structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An extraction tank with a rotating arched cover quick-opening structure includes an extraction tank, a cover plate assembly fixedly connected to the top of the extraction tank, an arched cover assembly spirally installed on the upper end of the cover plate assembly, a transmission assembly installed inside the cover plate assembly, the cover plate assembly including a cover shell, an extension cylinder fixedly connected to the top of the cover shell by bolts, a feeding port opened inside both the cover shell and the extension cylinder, a first spiral strip and a second spiral strip fixedly connected to the outer side of the extension cylinder, an annular groove and a guide groove opened inside the extension cylinder, an annular rubber sheet fixedly connected to the upper end of the annular groove opened in the extension cylinder, the transmission assembly including a rubber ring, a first fixing ring fixedly connected to the bottom end of the rubber ring, a connecting post and a second fixing ring sequentially fixedly connected to the bottom end of the first fixing ring, an extension block fixedly connected to the outer side of the second fixing ring, the extension block being rotatably connected to the inside of a rotating groove opened in the annular handle, a threaded groove opened inside the annular handle.

[0005] As a further optimization of this utility model, the bottom end of the cover shell is fixedly connected to the top end of the extraction tank, threaded holes are provided on the inner side of the cover shell and the inner side of the extension cylinder, and the cover shell and the extension cylinder are sealed by a rubber gasket.

[0006] As a further optimization of this utility model, the arch assembly includes an arch body, and an internally threaded cylinder is fixedly connected to the bottom end of the arch body. The internally threaded cylinder has a threaded hole on its inner side.

[0007] As a further optimization of this utility model, the internally threaded cylinder is installed on the outside of the second spiral strip through a threaded hole, the bottom end of the arched cover body is in contact with the top end of the extension cylinder, and the bottom end of the arched cover body is in contact with the upper end of the annular rubber sheet.

[0008] As a further optimization of this utility model, the first spiral strip is threadedly connected to the threaded groove formed in the rotating groove on its outer side, and the first spiral strip is positioned near the guide groove.

[0009] As a further optimization of this utility model, the annular groove and the guide groove are connected, the annular groove fits the inner and outer sides of the rubber ring, and a gap is provided between the lower end of the annular rubber sheet and the upper end of the rubber ring.

[0010] As a further optimization of this utility model, the first fixing ring, the connecting post, and the second fixing ring are all embedded in the interior of the annular groove, the extension block slides inside the guide groove, and the extension block extends out of the outer side of the guide groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the device changes the traditional method of squeezing the sealing ring by screwing on the cap by setting up a cover plate assembly, an arch cover assembly, and a transmission assembly. It adopts a method of fixing first and then expanding to seal, which significantly reduces the friction of the sealing ring, reduces wear and cracking caused by friction, effectively extends the service life of the sealing ring, ensures the sealing performance and safety performance of the extraction tank during use, and improves production efficiency and product quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cover plate assembly structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the cover plate assembly of this utility model; Figure 4 This is a cross-sectional structural diagram of the arched cap assembly of this utility model; Figure 5 This is a schematic diagram of the annular rubber sheet structure of this utility model; Figure 6 This is a cross-sectional structural diagram of the transmission component of this utility model.

[0013] In the diagram: 1. Extraction tank; 2. Cover plate assembly; 21. Cover shell; 22. Extension cylinder; 23. Feed port; 24. First spiral strip; 25. Second spiral strip; 26. Annular groove; 27. Guide groove; 28. Annular rubber sheet; 3. Dome assembly; 31. Dome body; 32. Internally threaded cylinder; 4. Transmission assembly; 41. Rubber ring; 42. First retaining ring; 43. Connecting post; 44. Second retaining ring; 45. Extension block; 46. Rotary groove; 47. Annular handle; 48. Threaded groove. Detailed Implementation

[0014] 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.

[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0016] Please see Figures 1-6 This utility model provides a technical solution: An extraction tank with a rotating arched lid quick-opening structure includes an extraction tank 1. A cover assembly 2 is fixedly connected to the top of the extraction tank 1. An arched lid assembly 3 is spirally installed on the upper end of the cover assembly 2. A transmission assembly 4 is installed inside the cover assembly 2. The cover assembly 2 includes a cover shell 21. An extension cylinder 22 is fixedly connected to the top of the cover shell 21 by bolts. Both the cover shell 21 and the extension cylinder 22 have feeding ports 23 on their inner sides. A first spiral strip 24 and a second spiral strip 25 are fixedly connected to the outer side of the extension cylinder 22. A feeding port 23 is opened inside the extension cylinder 22. The annular groove 26 and guide groove 27 are provided. An annular rubber sheet 28 is fixedly connected to the upper end of the annular groove 26 of the extension cylinder 22. The transmission component 4 includes a rubber ring 41. A first fixing ring 42 is fixedly connected to the bottom end of the rubber ring 41. A connecting post 43 and a second fixing ring 44 are fixedly connected to the bottom end of the first fixing ring 42 in sequence. An extension block 45 is fixedly connected to the outside of the second fixing ring 44. The outside of the extension block 45 is rotatably connected to the inside of the rotating groove 46 of the annular handle 47. A threaded groove 48 is provided on the inside of the annular handle 47.

[0017] As a further implementation of this solution, the bottom of the cover 21 is fixedly connected to the top of the extraction tank 1. Threaded holes are provided on the inner side of the cover 21 and the inner side of the extension cylinder 22. The cover 21 and the extension cylinder 22 are sealed by a rubber gasket. With the above settings, this design allows the extension cylinder 22 to be replaced. The connection method between the extraction tank 1 and the cover 21 is the same as the connection method between the cover 21 and the extension cylinder 22, which provides convenience for later maintenance. As a further implementation of this solution, the arch assembly 3 includes an arch body 31, with an internally threaded cylinder 32 fixedly connected to the bottom end of the arch body 31. The internally threaded cylinder 32 has a threaded hole on its inner side. Through the above arrangement, the feeding port 23 is sealed after the raw material is filled. At the same time, the installation method of the internally threaded cylinder 32 and the extension cylinder 22 improves the convenience and efficiency of disassembly and assembly of the arch assembly 3. As a further implementation of this solution, the internal threaded cylinder 32 is installed on the outside of the second spiral strip 25 through the threaded hole, the bottom end of the arch cover body 31 is attached to the top end of the extension cylinder 22, and the bottom end of the arch cover body 31 is attached to the upper end of the annular rubber sheet 28. Through the above settings, the effect of fixing first and then sealing is achieved, preventing friction on the annular rubber sheet 28 during the installation of the arch cover assembly 3, which would cause damage to the annular rubber sheet 28. As a further implementation of this solution, the outer side of the first spiral strip 24 is threadedly connected to the threaded groove 48 opened in the rotating groove 46. The first spiral strip 24 is positioned near the guide groove 27. The annular groove 26 and the guide groove 27 are connected. The annular groove 26 fits against the inner and outer sides of the rubber ring 41. A gap is provided between the lower end of the annular rubber sheet 28 and the upper end of the rubber ring 41. The first fixing ring 42, the connecting post 43, and the second fixing ring 44 are all embedded in the annular groove 26. The extension block 45 slides inside the guide groove 27 and extends out of the outer side of the guide groove 27. With the above configuration, by operating the annular handle 47, the transmission assembly 4 can be moved upward as a whole, thereby causing the gas inside the annular groove 26 at the upper end of the rubber ring 41 to flow upward. The pressure of the gas causes the annular rubber sheet 28 to expand, achieving a sealing effect.

[0018] Workflow: During use, raw materials are filled into the extraction tank 1 through the feed port 23. The lower end of the extraction tank 1 is used for discharge. The feed port 23 is sealed beforehand. Before this, the annular rubber sheet 28 is stored inside the annular groove 26. The internal threaded cylinder 32 is sleeved on the outside of the second spiral strip 25. By rotating the internal threaded cylinder 32, the internal threaded cylinder 32 and the arch cover body 31 move downward until the bottom end of the arch cover body 31 is in contact with the top end of the extension cylinder 22, thus sealing the arch cover body 31 and the extension cylinder 22. The annular handle 47 is rotated, and the annular handle 47 is threadedly connected to the first spiral strip 24 through the threaded groove 48. In this way, the annular handle 47 moves upward. During this process, the annular handle 47 rotates and engages with the extension block 45 through the rotating groove 46. The annular handle 47 drives the second fixing ring 44, the connecting column 43, and the first fixing ring 42 to move upward through the extension block 45. The first fixing ring 42 pushes the rubber ring 41 to move upward. The outer and inner sides of the rubber ring 41 are in contact with the extension cylinder 25. The annular groove 26 is fitted, which pushes the gas inside the annular groove 26 at the upper end of the rubber ring 41 upward. Although there is a certain friction between the rubber ring 41 and the extension cylinder 22, this friction is much smaller than the friction between the sealing ring and the traditional screw cap. This can improve the service life of the device. Due to the expansion of the gas inside the annular groove 26 at the upper end of the rubber ring 41, the annular rubber sheet 28 deforms upward, so that the annular rubber sheet 28 is tightly attached to the bottom end of the arch cover body 31, thus achieving the sealing effect between the extension cylinder 22 and the arch cover body 31. Based on the above principles, when sealing the arch cover and the tank, the device changes the traditional sealing method of squeezing the sealing ring by the arch cover and the tank during screw cap installation. Instead, it seals by the expansion of the annular rubber sheet 28 after the arch cover is installed. This sealing method reduces the wear and cracking of the sealing ring caused by large friction, ensuring the sealing performance and safety performance during use.

[0019] 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 quick-opening extraction tank with a rotary dome cover, comprising an extraction tank (1), characterized in that: The top of the extraction tank (1) is fixedly connected to a cover plate assembly (2), and an arch cover assembly (3) is spirally installed on the upper end of the cover plate assembly (2). A transmission assembly (4) is installed on the inner side of the cover plate assembly (2). The cover plate assembly (2) includes a cover shell (21), and an extension cylinder (22) is fixedly connected to the top of the cover shell (21) by bolts. Both the cover shell (21) and the extension cylinder (22) have feeding ports (23) on their inner sides. The extension cylinder (22) has a first spiral strip (24) and a second spiral strip (25) fixedly connected to its outer side. The extension cylinder (22) has an annular groove (26) and a guide groove (27) on its inner side. An annular rubber sheet (28) is fixedly connected to the upper end of the annular groove (26) of the extension cylinder (22). The transmission assembly (4) includes a rubber ring (41), a first fixing ring (42) is fixedly connected to the bottom end of the rubber ring (41), a connecting post (43) and a second fixing ring (44) are fixedly connected to the bottom end of the first fixing ring (42) in sequence, an extension block (45) is fixedly connected to the outside of the second fixing ring (44), and the outside of the extension block (45) is rotatably connected to the inside of the rotating groove (46) opened in the annular handle (47), and a threaded groove (48) is opened on the inside of the annular handle (47).

2. The extraction tank with a quick-opening structure of a rotary arch cover according to claim 1, characterized in that: The bottom of the cover (21) is fixedly connected to the top of the extraction tank (1). Threaded holes are provided on the inner side of the cover (21) and the inner side of the extension cylinder (22). The cover (21) and the extension cylinder (22) are sealed by a rubber gasket.

3. The extraction tank with quick opening structure of rotary dome cover according to claim 1, characterized in that: The arch assembly (3) includes an arch body (31), and an internal threaded cylinder (32) is fixedly connected to the bottom end of the arch body (31). The internal threaded cylinder (32) has a threaded hole on its inner side.

4. The extraction tank with quick opening structure of rotary arch cover according to claim 3, characterized in that: The internal threaded cylinder (32) is installed on the outside of the second spiral strip (25) through the threaded hole. The bottom end of the arch cover body (31) is attached to the top end of the extension cylinder (22), and the bottom end of the arch cover body (31) is attached to the upper end of the annular rubber sheet (28).

5. An extraction vessel with a quick-opening rotating arched lid structure according to claim 1, characterized in that: The outer side of the first spiral strip (24) is threadedly connected to the threaded groove (48) opened in the rotating groove (46), and the first spiral strip (24) is located near the guide groove (27).

6. The extraction vessel with quick opening structure of revolved dome cover according to claim 1, characterized in that: The annular groove (26) and the guide groove (27) are connected. The annular groove (26) fits against the inner and outer sides of the rubber ring (41). A gap is provided between the lower end of the annular rubber sheet (28) and the upper end of the rubber ring (41).

7. The extraction vessel with quick opening structure of swing dome cover according to claim 1, characterized in that: The first fixing ring (42), the connecting post (43), and the second fixing ring (44) are all embedded in the inside of the annular groove (26), and the extension block (45) slides inside the guide groove (27) and extends out of the outside of the guide groove (27).