Leakage-proof vacuum buffer tank

Abstract

The utility model relates to the field of leakage-proof replacement of vacuum buffer tanks, and discloses a leakage-proof vacuum buffer tank which comprises a vacuum buffer tank, two groups of supporting blocks are fixedly connected to the bottom of the vacuum buffer tank, a cover is rotatably connected to one end of the vacuum buffer tank, a cylindrical pipe is fixedly connected to one side of the cover, and a leakage-proof ring is arranged at one end of the vacuum buffer tank. The dismounting structure enables an operator to easily pull the first movable block to drive the rotating base, the spherical groove, the connecting shaft and the teasing needle which are connected with the first movable block to carry out accurate positioning by means of the elastic characteristic of the spring wire when facing an aged leakage-proof ring, and the teasing needle can be effectively inserted into the leakage-proof ring and a vacuum buffer tank or a fitting gap due to the conical design of the teasing needle. The leakage-proof ring is gradually pried by utilizing the lever principle to be separated from the original sealing position, the whole dismounting process is simple and convenient to operate, complex external tools are not needed, the dismounting efficiency is greatly improved, the shutdown maintenance time of equipment is shortened, and the production interruption loss caused by replacing the leakage-proof ring is reduced.

Description

Technical Field

[0001] This utility model relates to the field of leak-proof replacement of vacuum buffer tanks, specifically a leak-proof vacuum buffer tank. Background Technology

[0002] Leak-proof vacuum buffer tanks are widely used in many fields such as chemical, pharmaceutical, food, biotechnology, power, and water supply systems. In these fields, leak-proof vacuum buffer tanks play an important role in meeting various production needs. Leak-proof vacuum buffer tanks are a technological improvement on traditional vacuum buffer tanks, designed to address the leakage problems that may occur during use.

[0003] According to Chinese Patent CN202420473176.8, in this application, because the packing is set in two sets, the amount of each set of packing is smaller, the thickness of the packing is thinner, and the effect of the packing in contact with high-temperature steam is better, which makes the liquefaction of impurities better.

[0004] Although the two sets of packing materials in the application can effectively address the problem of poor liquefaction, during use, the leak-proof rings will wear out over time, and even minor damage or aging can lead to leakage, affecting the normal operation of the equipment. Furthermore, replacing the leak-proof rings requires tools, which often need to be found separately, wasting a lot of time. Therefore, we propose a leak-proof vacuum buffer tank. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a leak-proof vacuum buffer tank, which solves the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a leak-proof vacuum buffer tank, comprising a vacuum buffer tank, a lid, a cylindrical tube, a leak-proof ring, and support blocks. Two sets of support blocks are fixedly connected to the bottom of the vacuum buffer tank, and the two sets of support blocks are rectangular. A lid is rotatably connected to one end of the vacuum buffer tank, and a cylindrical tube is fixedly connected to one side of the lid. A leak-proof ring is provided at one end of the vacuum buffer tank. The device also includes:

[0009] A disassembly structure is located on one side of the vacuum buffer tank, which is used to disassemble the aging leak-proof ring;

[0010] A replacement structure is located on one side of the vacuum buffer tank for replacing the leak-proof ring.

[0011] Preferably, one end of the vacuum buffer tank is provided with a placement groove, the inner wall of the placement groove is fitted together with the outer side of the leak-proof ring, and one end of the leak-proof ring is attached to one end of the cylindrical tube.

[0012] Preferably, a placement box is fixedly connected to one side of the vacuum buffer tank, and the placement box is hollow, with a spring wire fixedly connected to the inner wall of the placement box.

[0013] Preferably, the other end of the spring wire is fixedly connected to a first movable block, one side of the first movable block is rotatably connected to a connecting block via a connecting shaft, and the other end of the connecting block is rotatably connected to a second movable block via a connecting shaft. The sides of the second movable block and the first movable block that are close to each other are in contact, and the second movable block and the first movable block are staggered.

[0014] Preferably, the easy-to-replace structure includes a first fixed shaft, a second fixed shaft, and a third fixed shaft. The second fixed shaft is fixedly connected to one side of the first movable block away from the connecting block. The first fixed shaft is fixedly connected to one side of the second movable block away from the connecting block, and the first fixed shaft and the second fixed shaft are parallel. The third fixed shaft is fixedly connected to one side of the connecting block, and the first fixed shaft, the second fixed shaft, and the third fixed shaft form a triangle.

[0015] Preferably, the disassembly structure includes a rotating base, a spherical groove, a connecting shaft, and a picking needle. The rotating base is fixedly connected to the other side of the first movable block. A spherical groove is provided on the top of the rotating base. The connecting shaft is rotatably connected to the inner wall of the spherical groove. A picking needle is fixedly connected to the other end of the connecting shaft, and the picking needle is conical.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a leak-proof vacuum buffer tank, which has the following beneficial effects:

[0018] 1. This leak-proof vacuum buffer tank features a detachable design that allows operators to easily pull the first movable block when dealing with an aging leak-proof ring, utilizing the elasticity of the spring wire. This enables the connected rotating base, spherical groove, connecting shaft, and pick pin to achieve precise positioning. The conical design of the pick pin effectively inserts into the gap between the leak-proof ring and the vacuum buffer tank or the sealing seam, using leverage to gradually pry the leak-proof ring away from its original sealing position. The entire disassembly process is simple and requires no complex external tools, greatly improving disassembly efficiency, reducing equipment downtime for maintenance, and minimizing production interruption losses caused by replacing leak-proof rings.

[0019] 2. This leak-proof vacuum buffer tank facilitates the interaction between the first, second, and third fixed shafts in the replacement structure and the first, second, and connecting blocks. This allows for the rapid positioning and pre-deformation of the new leak-proof ring. Operators simply need to rotate the first and second movable blocks to shape the new leak-proof ring into a suitable position for placement in the slot. The ring is then smoothly embedded into the slot, completing the installation. This replacement method not only involves fewer steps but also offers high installation precision, ensuring a good seal between the new leak-proof ring, the vacuum buffer tank, and the cylindrical tube. This effectively prevents gas leakage and ensures the normal operation of the equipment.

[0020] 3. This leak-proof vacuum buffer tank has all the tools and structures for disassembly and replacement concentrated near the tank. Operators do not need to search for or move tools over a large area. When replacing the leak-proof ring, it is easier to operate and adjust each component. Whether it is controlling the prying angle and force of the needle when removing the old leak-proof ring, or rotating the moving block and positioning the fixed shaft when installing the new leak-proof ring, it can all be easily completed within a short distance. This reduces the labor intensity of operators, improves the accuracy and reliability of operation, and also facilitates daily inspection and maintenance of related components, timely detection and handling of potential problems, and extends the service life of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of the overall structure of this utility model;

[0023] Figure 3 This is a partially enlarged schematic diagram of the present invention.

[0024] In the diagram: 1. Vacuum buffer tank; 2. Lid; 3. Cylindrical tube; 4. Placement groove; 5. Leak-proof ring; 6. Support block; 7. Placement box; 8. Spring wire; 9. First movable block; 10. Second movable block; 11. Connecting block; 12. First fixed shaft; 13. Second fixed shaft; 14. Third fixed shaft; 15. Rotating base; 16. Spherical groove; 17. Connecting shaft; 18. Picking needle. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-3 A leak-proof vacuum buffer tank includes a vacuum buffer tank 1, a lid 2, a cylindrical tube 3, a leak-proof ring 5, and support blocks 6. Two sets of support blocks 6 are fixedly connected to the bottom of the vacuum buffer tank 1, and the two sets of support blocks 6 are rectangular. The lid 2 is rotatably connected to one end of the vacuum buffer tank 1, and the cylindrical tube 3 is fixedly connected to one side of the lid 2. A leak-proof ring 5 is provided at one end of the vacuum buffer tank 1. The tank also includes:

[0027] A disassembly structure is provided on one side of the vacuum buffer tank 1, which is used to disassemble the aging leak-proof ring 5.

[0028] A replacement structure is provided on one side of the vacuum buffer tank 1 for replacing the new leak-proof ring 5.

[0029] Furthermore, a placement groove 4 is provided at one end of the vacuum buffer tank 1. The inner wall of the placement groove 4 is fitted together with the outer side of the leak-proof ring 5. One end of the leak-proof ring 5 is attached to one end of the cylindrical tube 3. The leak-proof ring 5 is placed into the placement groove 4. After the new leak-proof ring 5 is in place, the replacement structure can be removed from the new leak-proof ring 5. At this time, the new leak-proof ring 5 rebounds due to its own elasticity, and its other half is also embedded into the placement groove 4, so that the inner wall of the new leak-proof ring 5 is tightly fitted together with the inner wall of the placement groove 4, and finally the installation and replacement of the new leak-proof ring 5 is completed.

[0030] Furthermore, a placement box 7 is fixedly connected to one side of the vacuum buffer tank 1, and the placement box 7 is hollow. A spring wire 8 is fixedly connected to the inner wall of the placement box 7. When the anti-leakage ring 5 is found to be aged and needs to be replaced, the operation is carried out using the disassembly structure set on one side of the vacuum buffer tank 1. The hollow placement box 7 is fixedly connected to one side of the vacuum buffer tank 1, and a spring wire 8 is fixedly connected to the inner wall of the placement box 7. The other end of the spring wire 8 is fixedly connected to the first movable block 9. Since the spring wire 8 is elastic, the first movable block 9 can move relative to the placement box 7 within a certain range of elastic deformation of the spring wire 8.

[0031] Furthermore, the other end of the spring wire 8 is fixedly connected to a first movable block 9. One side of the first movable block 9 is rotatably connected to a connecting block 11 via a connecting shaft. The other end of the connecting block 11 is rotatably connected to a second movable block 10 via a connecting shaft. The sides of the second movable block 10 and the first movable block 9 that are close to each other are in contact with each other, and the second movable block 10 and the first movable block 9 are staggered.

[0032] Furthermore, the easy-replacement structure includes a first fixed shaft 12, a second fixed shaft 13, and a third fixed shaft 14. The second fixed shaft 13 is fixedly connected to one side of the first movable block 9, away from the connecting block 11. The first fixed shaft 12 is fixedly connected to one side of the second movable block 10, away from the connecting block 11, and the first fixed shaft 12 and the second fixed shaft 13 are parallel. The third fixed shaft 14 is fixedly connected to one side of the connecting block 11, and the first fixed shaft 12, the second fixed shaft 13, and the third fixed shaft 14 form a triangle. After successfully removing the old leak-proof ring 5, the easy-replacement structure is then used to install the new leak-proof ring 5. The first fixed shaft 12, the second fixed shaft 13, and the third fixed shaft 14 in the easy-replacement structure... The first fixed shaft 12 and the second fixed shaft 13 and the third fixed shaft 14 play a key role. The operator first places the new leak-proof ring 5 in an easy-to-operate position, and then accurately locks the first fixed shaft 12, the second fixed shaft 13 and the third fixed shaft 14 into the appropriate positions on the outside and inside of the new leak-proof ring 5, respectively. The operator manually rotates the first movable block 9 and the second movable block 10 (the rotation is achieved by means of the connecting shaft). During the rotation, through the interaction between the first fixed shaft 12, the second fixed shaft 13 and the third fixed shaft 14 and the new leak-proof ring 5, the new leak-proof ring 5 gradually deforms and presents a state similar to "3". The side of the new leak-proof ring 5 presenting the state of "3" is aligned with the opening on one side of the placement groove 4.

[0033] Furthermore, the disassembly structure includes a rotating base 15, a spherical groove 16, a connecting shaft 17, and a picking needle 18. The rotating base 15 is fixedly connected to the other side of the first movable block 9. A spherical groove 16 is formed on the top of the rotating base 15. The connecting shaft 17 is rotatably connected to the inner wall of the spherical groove 16. The other end of the connecting shaft 17 is fixedly connected to a picking needle 18, which is conical. The rotating base 15 provides a foundation for the movement and function of subsequent related components. A spherical groove 16 is formed on the rotating base 15, and a connecting shaft 17 is rotatably connected to the outer side of the spherical groove 16. One end of the connecting shaft 17 is a spherical block adapted to the spherical groove 16, allowing one end of the connecting shaft 17 to move inside the spherical groove 16. A groove is formed on one side of the spherical groove 16 to facilitate the retraction of the connecting shaft 17. At the beginning, the other end of the connecting shaft 17 is fixedly connected to a conical picking needle 18. The operator pulls the first movable block 9, and with the help of the tension elasticity of the spring wire 8, the fixed block 15 moves the connected spherical groove 16, connecting shaft 17 and picking needle 18 to the appropriate operating position, ensuring that the picking needle 18 can be aligned with the part where the old leak-proof ring 5 is in contact with the vacuum buffer tank 1 or cylindrical tube 3, preparing for the next step of prying and separating. With the conical structure of the picking needle 18, it is carefully inserted into the gap between the old leak-proof ring 5 and the inner wall of the placement groove 4. Then, by using the interaction between the picking needle 18 and the gap, the old leak-proof ring 5 is gradually pried, so that it slowly gets out of the tight contact with the inner wall of the placement groove 4 and one end of the cylindrical tube 3. The operation continues until the old leak-proof ring 5 is completely separated from the vacuum buffer tank 1, thus completing the disassembly of the old leak-proof ring 5.

[0034] Structural Description:

[0035] 1. Vacuum Buffer Tank: The vacuum buffer tank is the core structure of the entire device, used to store or buffer related substances. Two sets of rectangular support blocks are fixedly connected to its bottom to provide stable support. One end has a placement groove for placing a leak-proof ring, and a cover is rotatably connected to this end. A cylindrical tube is fixedly connected to one side of the cover, working together with the vacuum buffer tank to play a key role in specific processes or equipment operation.

[0036] 2. Cover: The cover is connected to one end of the vacuum buffer tank by a rotating connection. The cylindrical tube fixed on one side of the cover is connected to the internal space of the vacuum buffer tank. The cover can be opened and closed during equipment operation or maintenance.

[0037] 3. Cylindrical tube: The cylindrical tube is fixedly connected to one side of the cover and fits against one side of the vacuum buffer tank, working together with the vacuum buffer tank and other components to complete the predetermined working task of the equipment.

[0038] 4. Placement slot: The placement slot is located at one end of the vacuum buffer tank. Its inner wall shape is adapted to the outer side of the leak-proof ring. It is used to fit the leak-proof ring, so that the leak-proof ring can fit tightly with the vacuum buffer tank after installation to prevent leakage of internal substances or gases. It plays a basic role in positioning and fixing during the installation of the leak-proof ring and is a key structural part to ensure the sealing of the equipment.

[0039] 5. Leak-proof ring: The leak-proof ring is installed at one end of the vacuum buffer tank. Its outer side fits into the inner wall of the placement groove, and its other end fits into one end of the cylindrical tube. Its main function is to form a seal at the connection between the vacuum buffer tank and the lid, cylindrical tube and other components to prevent gas or liquid leakage and ensure that the vacuum environment or storage conditions of specific substances inside the equipment are maintained. When the leak-proof ring ages or is damaged, it can be replaced by a special disassembly and replacement structure.

[0040] 6. Support Blocks: There are two sets of rectangular support blocks, which are fixedly connected to the bottom of the vacuum buffer tank. Their main function is to provide a stable support foundation for the vacuum buffer tank, so that the vacuum buffer tank can be placed stably during installation or operation, avoiding shaking or tilting caused by external factors, thereby ensuring the safety and stability of the equipment operation. At the same time, it is also conducive to the coordinated work between other components and the vacuum buffer tank.

[0041] 7. Placement Box: The placement box is hollow and fixedly connected to one side of the vacuum buffer tank. Its internal space is used to accommodate and place components and structures related to the disassembly and replacement of the leak-proof ring, such as spring wires. Its layout makes it convenient for operators to quickly obtain relevant tools and components when performing leak-proof ring maintenance operations, improving operational efficiency. At the same time, it also makes the structure of the entire equipment more compact and reasonable, reducing space occupation.

[0042] 8. Spring Wire: One end of the spring wire is fixedly connected to the inner wall of the placement box, and the other end is fixedly connected to the first movable block. It has elastic properties and can stretch and deform within a certain range, allowing the first movable block to move relative to the placement box. In the disassembly structure of the leak-proof ring, it plays the role of transmitting tension and providing elastic restoring force. When the operator pulls the first movable block, the spring wire is stretched, and when released, it can make the first movable block return to a certain position, providing convenient power assistance for the precise positioning and operation of the needle pick.

[0043] 9. First Movable Block: The first movable block is connected to the placement box via a spring wire and rotatably connected to the connecting block via a connecting shaft. A rotating base, a second fixed shaft, and other components are fixedly connected to one side of the first movable block. It plays a crucial role in transmission and connection during the disassembly and replacement of the leak-proof ring. By pulling or rotating the first movable block, the operator can drive other connected components to perform corresponding actions, thereby realizing the disassembly, positioning, and deformation of the leak-proof ring. It is an important moving component in the entire disassembly and replacement structure.

[0044] 10. Second movable block: The second movable block is rotatably connected to the connecting block via a connecting shaft, and is placed in staggered position with the side of the first movable block that is close to it. One side of the second movable block is fixedly connected to the first fixed shaft. During the replacement of the leak-proof ring, the second movable block works in conjunction with the first movable block. When the first and second movable blocks are manually rotated, the leak-proof ring can be deformed by the interaction between the fixed shaft and the leak-proof ring to facilitate its placement in the placement slot. It is an important component of the replacement structure and plays a key auxiliary role in the installation of the new leak-proof ring.

[0045] 11. Connecting Block: The connecting block is rotatably connected to the first movable block and the second movable block via connecting shafts. A third fixed shaft is fixedly connected to one side of the connecting block. In the replacement structure of the leak-proof ring, the connecting block connects and supports the first movable block and the second movable block. At the same time, the third fixed shaft and other fixed shafts work together to support the leak-proof ring. When the first movable block and the second movable block are rotated, the connecting block can stably transmit force, so that the leak-proof ring deforms and moves in a predetermined manner, ensuring the smooth progress of the replacement operation.

[0046] 12. First Fixed Shaft: The first fixed shaft is fixedly connected to one side of the second movable block and is parallel to the second fixed shaft. During the replacement of the leak-proof ring, it, together with the second and third fixed shafts, forms the positioning and deformation control structure for the new leak-proof ring. After the operator accurately clamps it in the corresponding position on the outside or inside of the new leak-proof ring, by rotating the relevant movable block, the first fixed shaft interacts with the leak-proof ring, causing the leak-proof ring to deform to adapt to the installation requirements of the placement groove. It is one of the important components to ensure that the new leak-proof ring can be installed smoothly and form a good seal.

[0047] 13. Second fixed shaft: The second fixed shaft is fixedly connected to one side of the first movable block and is parallel to the first fixed shaft. In the replacement operation of the leak-proof ring, it works in coordination with the first fixed shaft and the third fixed shaft to play a key role in positioning and pre-deforming the new leak-proof ring. By clamping the leak-proof ring together with other fixed shafts and applying force to the leak-proof ring during the rotation of the movable block, it deforms the ring and finally embeds it accurately into the placement groove, ensuring the installation accuracy and sealing performance of the leak-proof ring.

[0048] 14. Third Fixed Shaft: The third fixed shaft is fixedly connected to one side of the connecting block, forming a triangle with the first and second fixed shafts. It plays a unique positioning and supporting role in the replacement structure of the leak-proof ring. During the installation of the new leak-proof ring, it works together with the first and second fixed shafts to form a stable triangular support structure. This helps to control the deformation direction and degree of the leak-proof ring when rotating the movable block, allowing the leak-proof ring to be smoothly placed into the placement slot and spring back to the appropriate position, ensuring a good sealing fit with the vacuum buffer tank.

[0049] 15. Rotating base: The rotating base is fixedly connected to the other side of the first movable block. A spherical groove is opened on its top to provide a rotating support base for the connecting shaft. In the disassembly structure of the leak-proof ring, the connecting shaft is rotatably connected in the spherical groove, so that the pick fixed at the other end of the connecting shaft can flexibly adjust its angle and position. This allows the pick to be accurately inserted into the gap between the leak-proof ring and the vacuum buffer tank or cylindrical tube when disassembling the old leak-proof ring, and to use the lever principle to pry it open. It is an important support component for achieving precise positioning and effective disassembly of the pick.

[0050] 16. Spherical Groove: The spherical groove is located on the top of the rotating base. Its inner wall is rotatably connected to the connecting shaft. The unique spherical structure design allows the connecting shaft to rotate in multiple directions inside, thus giving the pick a more flexible operating angle range in space. During the disassembly of the leak-proof ring, in conjunction with the connecting shaft and the pick, the angle of action of the pick can be adjusted at any time according to the actual gap between the leak-proof ring and the vacuum buffer tank and the prying requirements, improving the convenience and effectiveness of the disassembly operation.

[0051] 17. Connecting Shaft: One end of the connecting shaft is rotatably connected to the rotating base in the spherical groove, and the other end is fixedly connected to the picking needle. In the disassembly structure of the leak-proof ring, it plays a connecting and transmission role. On the one hand, it connects the rotating base and the picking needle into a whole, so that the picking needle can rotate under the support and constraint of the rotating base. On the other hand, when the operator pulls the first movable block, the connecting shaft can transmit the force to the picking needle, so that it moves to the appropriate position. And when prying the leak-proof ring, it can effectively convert the rotation of the picking needle into a prying force on the leak-proof ring, so as to separate the leak-proof ring from the vacuum buffer tank or cylindrical tube.

[0052] 18. Picking Needle: The picking needle is conical and fixedly connected to the other end of the connecting shaft. It is a key component that directly acts on the leak-proof ring during the disassembly process. Its conical structure facilitates insertion into the gap between the leak-proof ring and the vacuum buffer tank or cylindrical tube. Utilizing the lever principle, the operator can generate a prying force at the gap by rotating the picking needle, gradually dislodging the leak-proof ring from its original sealing position, thus completing the disassembly of the old leak-proof ring. Its shape and material design are matched to the requirements of the leak-proof ring disassembly operation, ensuring the efficiency and safety of the disassembly process.

[0053] Working principle:

[0054] When the leak-proof ring 5 is found to be aged and needs to be replaced, the operation is carried out using the disassembly structure located on one side of the vacuum buffer tank 1. A hollow placement box 7 is fixedly connected to one side of the vacuum buffer tank 1. A spring wire 8 is fixedly connected to the inner wall of the placement box 7. The other end of the spring wire 8 is fixedly connected to the first movable block 9. Since the spring wire 8 is elastic, the first movable block 9 can move relative to the placement box 7 within a certain range of elastic deformation of the spring wire 8. Furthermore, a rotating base 15 is fixedly connected to the other side of the first movable block 9. This rotating base 15 provides basic support for the movement and function of subsequent related components. A spherical groove 16 is formed in the rotating base 15. A connecting shaft 17 is rotatably connected to the outside of the spherical groove 16. One end of the connecting shaft 17 is a spherical block that adapts to the spherical groove 16, allowing one end of the connecting shaft 17 to move inside the spherical groove 16. One side of the spherical groove 16... A slot is provided to facilitate the retraction of the connecting shaft 17. The other end of the connecting shaft 17 is fixedly connected to a conical pick 18. The operator pulls the first movable block 9, and with the help of the tension elasticity of the spring wire 8, the fixed block 15 moves the connected spherical groove 16, connecting shaft 17 and pick 18 to the appropriate operating position, ensuring that the pick 18 can be aligned with the part where the old leak-proof ring 5 is in contact with the vacuum buffer tank 1 or the cylindrical tube 3, in preparation for the next step of prying and separating. With the conical structure of the pick 18, it is carefully inserted into the gap between the old leak-proof ring 5 and the inner wall of the placement groove 4. Then, by using the interaction between the pick 18 and the gap, the old leak-proof ring 5 is gradually pried, so that it slowly gets out of the tight contact with the inner wall of the placement groove 4 and one end of the cylindrical tube 3. The operation continues until the old leak-proof ring 5 is completely separated from the vacuum buffer tank 1, thus completing the disassembly of the old leak-proof ring 5.After successfully removing the old leak-proof ring 5, the new leak-proof ring 5 is installed using an easy-replacement structure. The first fixing shaft 12, the second fixing shaft 13, and the third fixing shaft 14 in this structure play a crucial role. The operator first places the new leak-proof ring 5 in an easily accessible position, then accurately positions the first fixing shaft 12, the second fixing shaft 13, and the third fixing shaft 14 on the appropriate outer and inner sides of the new leak-proof ring 5. The operator manually rotates the first movable block 9 and the second movable block 10 (using the connecting shaft to achieve the rotation). During rotation, through the interaction between the first fixing shaft 12, the second fixing shaft 13, and the third fixing shaft 14 and the new leak-proof ring 5, the new leak-proof ring 5 gradually deforms, presenting a shape similar to the number "3". With one side of the new leak-proof ring 5 in position "3" aligned with the opening of the placement groove 4, the inner length of the placement groove 4 is shorter than the outer length. Then, slowly insert the leak-proof ring 5 into the placement groove 4. Once the new leak-proof ring 5 is in place, remove the replacement structure from it. At this point, the new leak-proof ring 5, relying on its own elastic rebound, will also have its other half embedded into the placement groove 4, ensuring a tight fit between the inner wall of the new leak-proof ring 5 and the inner wall of the placement groove 4. This completes the installation and replacement of the new leak-proof ring 5. Throughout the process, both the structural components for disassembly and those for replacement are located near the vacuum buffer tank 1. This layout greatly facilitates the replacement of the leak-proof ring 5, effectively improving the efficiency and convenience of the replacement work.

[0055] 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 leak-proof vacuum buffer tank, comprising a vacuum buffer tank (1), a lid (2), a cylindrical tube (3), a leak-proof ring (5), and support blocks (6), wherein two sets of support blocks (6) are fixedly connected to the bottom of the vacuum buffer tank (1), and the two sets of support blocks (6) are rectangular; a lid (2) is rotatably connected to one end of the vacuum buffer tank (1), and a cylindrical tube (3) is fixedly connected to one side of the lid (2); a leak-proof ring (5) is provided at one end of the vacuum buffer tank (1), characterized in that: Also includes: A disassembly structure is provided on one side of the vacuum buffer tank (1) for disassembling the aged leak-proof ring (5); A replacement structure is provided on one side of the vacuum buffer tank (1) for replacing the leak-proof ring (5).

2. The leak-proof vacuum buffer tank according to claim 1, characterized in that: The vacuum buffer tank (1) has a placement groove (4) at one end. The inner wall of the placement groove (4) is fitted together with the outer side of the leak-proof ring (5). One end of the leak-proof ring (5) is attached to one end of the cylindrical tube (3).

3. A leak-proof vacuum buffer tank according to claim 1, characterized in that: A placement box (7) is fixedly connected to one side of the vacuum buffer tank (1), and the placement box (7) is hollow. A spring wire (8) is fixedly connected to the inner wall of the placement box (7).

4. A leak-proof vacuum buffer tank according to claim 3, characterized in that: The other end of the spring wire (8) is fixedly connected to a first movable block (9). One side of the first movable block (9) is rotatably connected to a connecting block (11) via a connecting shaft. The other end of the connecting block (11) is rotatably connected to a second movable block (10) via a connecting shaft. The second movable block (10) and the first movable block (9) are close to each other on the same side and are staggered.

5. A leak-proof vacuum buffer tank according to claim 4, characterized in that: The easy-to-replace structure includes a first fixed shaft (12), a second fixed shaft (13), and a third fixed shaft (14). The second fixed shaft (13) is fixedly connected to one side of the first movable block (9) away from the connecting block (11). The first fixed shaft (12) is fixedly connected to one side of the second movable block (10) away from the connecting block (11), and the first fixed shaft (12) and the second fixed shaft (13) are parallel. The third fixed shaft (14) is fixedly connected to one side of the connecting block (11), and the first fixed shaft (12), the second fixed shaft (13), and the third fixed shaft (14) form a triangle.

6. A leak-proof vacuum buffer tank according to claim 5, characterized in that: The disassembly structure includes a rotating base (15), a spherical groove (16), a connecting shaft (17), and a picking needle (18). The rotating base (15) is fixedly connected to the other side of the first movable block (9). The rotating base (15) has a spherical groove (16) on its top. The connecting shaft (17) is rotatably connected to the inner wall of the spherical groove (16). The picking needle (18) is fixedly connected to the other end of the connecting shaft (17), and the picking needle (18) is conical.

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