Polytetrafluoroethylene liner sealing structure

Abstract

The utility model discloses a polytetrafluoroethylene liner sealing structure which comprises a polytetrafluoroethylene body, a first heat dissipation hole, a second heat dissipation hole and a metal installation piece, the first heat dissipation hole is formed in the center of the polytetrafluoroethylene body, the second heat dissipation hole is formed in one end of the polytetrafluoroethylene body, and the metal installation piece is installed on the polytetrafluoroethylene body. The second heat dissipation holes are evenly distributed in one end of the polytetrafluoroethylene body, a metal installation piece is arranged on the surface of the polytetrafluoroethylene body, and an installation groove is formed in the metal installation piece. The polytetrafluoroethylene body is connected with the metal mounting piece, so that the polytetrafluoroethylene body can be connected with the metal mounting piece through the mounting block, the limiting block can be pushed during insertion, meanwhile, the limiting block can lock the mounting block after complete insertion, and then an air closing ring can be formed; the higher the temperature is, the better the sealing effect is, and the polytetrafluoroethylene inner container sealing structure can have the good sealing effect when used.

Description

Technical Field

[0001] This utility model relates to the technical field of polytetrafluoroethylene (PTFE) inner liner sealing structure, specifically a polytetrafluoroethylene (PTFE) inner liner sealing structure. Background Technology

[0002] The main function of a sealing structure is to prevent liquids, gases, or other media from leaking out of the joints, connections, or inside containers of mechanical devices. A good sealing structure can reduce media loss and improve equipment operating efficiency. This is especially true in equipment that requires precise control of media flow or pressure, such as pumps, valves, and reactors, where the effectiveness of the sealing structure directly affects the performance and stability of the equipment.

[0003] However, most sealing structures use sealing rings, which are mostly made of rubber. Since the equipment to be sealed is often exposed to high temperatures or corrosion, the sealing rings are prone to aging after prolonged use. This leads to a decrease in the sealing effect of the sealing rings after long-term use, making the sealing structure that relies on sealing rings inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to provide a polytetrafluoroethylene (PTFE) inner liner sealing structure to solve the problem of poor sealing effect when the sealing structure mentioned in the background art is sealed by a sealing gasket.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a polytetrafluoroethylene (PTFE) inner liner sealing structure, comprising an inner liner body, a first recess, a second recess, and a metal mounting component. The first recess is provided at the center of the inner liner body, and the second recess is provided at one end of the inner liner body. The second recesses are evenly distributed at one end of the inner liner body. The surface of the inner liner body is provided with a metal mounting component, and the interior of the metal mounting component is provided with a mounting groove.

[0006] Preferably, the mounting groove is provided with mounting blocks that are connected to the metal mounting parts. The mounting blocks are symmetrically distributed inside the mounting groove and are L-shaped.

[0007] Preferably, the bottom end of the inner liner body is provided with a plug-in groove, the plug-in grooves are symmetrically distributed at the bottom end of the inner liner body, and a locking groove is provided on one side of the plug-in groove, the locking grooves are symmetrically distributed on one side of the plug-in groove.

[0008] Preferably, a reserved groove is provided on both sides of the locking groove, and a fixing rod is provided inside the reserved groove. The fixing rod is symmetrically distributed inside the reserved groove.

[0009] Preferably, a displacement block is slidably connected to the surface of the fixing rod, the displacement blocks are symmetrically distributed on the surface of the fixing rod, and a limit block is provided on one side of the fixing rod, the limit block being trapezoidal in shape.

[0010] Preferably, a limiting groove is formed inside the mounting block on one side near the limiting block, and the limiting grooves are symmetrically distributed on both sides of the mounting block. The limiting block and the displacement block are rotatably connected by a connecting rod through a rotating shaft.

[0011] Preferably, a limiting spring is connected between one end of the displacement block and the inner liner body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The polytetrafluoroethylene (PTFE) inner liner sealing structure typically uses a sealing ring, which is prone to aging after prolonged use, leading to poor sealing performance. This new design addresses this issue by first connecting the inner liner body to the metal mounting piece, allowing it to engage within the mounting groove. Simultaneously, the mounting block connects to the insertion groove during connection. Then, rotating the inner liner body causes the locking groove at the bottom to rotate, thus... The locking groove can engage with the mounting block. Because the combined shape of the insertion groove and the locking groove is "L", it can engage with the mounting block after rotation, so that the inner liner body can be stably connected to the metal mounting parts, thus forming a closed air ring. Because PTFE has extremely high chemical stability and corrosion resistance, it can resist the erosion of most chemicals, including strong acids and strong alkalis, and has good anti-aging effect. At the same time, the higher the temperature, the better the sealing effect. Therefore, the PTFE inner liner sealing structure can have a good sealing effect during use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the air-sealing ring of this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the inner liner body of this utility model;

[0015] Figure 3 This is a three-dimensional explosion diagram of the air-sealing ring of this utility model;

[0016] Figure 4 This is a three-dimensional cross-sectional structural diagram of the inner liner body of this utility model;

[0017] Figure 5 This is a three-dimensional cross-sectional view of the limiting block of this utility model;

[0018] Figure 6 This is a three-dimensional sectional view of the fixing rod of this utility model.

[0019] In the diagram: 1. Inner liner body; 2. First recess; 3. Second recess; 4. Metal mounting part; 5. Mounting groove; 6. Mounting block; 7. Insertion groove; 8. Locking groove; 9. Fixing rod; 10. Displacement block; 11. Limiting block; 12. Limiting groove; 13. Connecting rod; 14. Restricting spring. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-6 This utility model provides a technical solution: a polytetrafluoroethylene (PTFE) inner liner sealing structure, including an inner liner body 1, a first recess 2, a second recess 3, and a metal mounting component 4. The first recess 2 is located at the center of the inner liner body 1. The inner liner body 1 is coated with a PTFE material, which is one of polytetrafluoroethylene, perfluoroethylene propylene, or polyvinylidene fluoride. The second recess 3 is located at one end of the inner liner body 1 and is evenly distributed at one end. The surface of the inner liner body 1 is provided with a metal mounting component 4. An mounting groove 5 is formed inside the metal mounting component 4. Mounting blocks 6, which connect to the metal mounting component 4, are symmetrically distributed inside the mounting groove 5 and are L-shaped. An insertion groove 7 is located at the bottom end of the inner liner body 1. The insertion slots 7 are symmetrically distributed at the bottom of the inner liner body 1. A locking slot 8 is provided on one side of the insertion slot 7. The locking slots 8 are symmetrically distributed on one side of the insertion slot 7. Reserved slots are provided on both sides of the locking slot 8. A fixing rod 9 is provided inside the reserved slot. The fixing rod 9 is symmetrically distributed inside the reserved slot. A displacement block 10 is slidably connected to the surface of the fixing rod 9. The displacement block 10 is symmetrically distributed on the surface of the fixing rod 9. A limit block 11 is provided on one side of the fixing rod 9. The limit block 11 is trapezoidal in shape. A limit groove 12 is provided inside the mounting block 6 near the limit block 11. The limit groove 12 is symmetrically distributed on both sides of the mounting block 6. A connecting rod 13 is rotatably connected between the limit block 11 and the displacement block 10 through a rotating shaft. A limiting spring 14 is connected between one end of the displacement block 10 and the inner liner body 1.

[0022] In practice,

[0023] See Figures 1-6It is known that when a sealing structure is used, a sealing ring is usually used, which is prone to aging after long-term use, resulting in poor sealing performance. Firstly, the inner liner body 1 is connected to the metal mounting part 4, allowing it to engage inside the mounting groove 5. Simultaneously, during connection, the mounting block 6 connects to the insertion groove 7. Then, the inner liner body 1 is rotated, causing the locking groove 8 at the bottom to rotate as well, allowing it to engage with the mounting block 6. Since the combined shape of the insertion groove 7 and the locking groove 8 is "L", it engages with the mounting block 6 after rotation. Furthermore, after the mounting block 6 is inserted into the locking groove 8, it presses against the limiting block 11. When the limiting block 11 moves, it moves the connected connecting rod 13, which in turn moves the connected displacement block 10. The displacement block 10, in turn, moves the connected limiting spring 14. After the mounting block 6 is fully engaged, the internal limiting groove 12 can contact the limiting block 11, causing the limiting block 11 to lose its restraint and the limiting spring 14 to lose its restraint. Subsequently, the connected displacement block 10 can be moved, so that the connected connecting rod 13 can be moved when the displacement block 10 moves, and the connected rod 13 can move the connected limiting block 11 when it moves, so that the limiting block 11 can be inserted into the limiting groove 12 inside the mounting block 6. Because polytetrafluoroethylene has extremely high chemical stability and corrosion resistance, it can resist the erosion of most chemicals, including strong acids and strong alkalis, and has good anti-aging effect. Moreover, the inner liner body 1 and the metal mounting part 4 can form a closed air ring through the first recess 2 and the second recess 3, which can effectively prevent high temperature and high pressure gas or liquid from escaping from the sealing gap. At the same time, the higher the temperature, the better the sealing effect, so that the polytetrafluoroethylene inner liner sealing structure can have a good sealing effect when in use.

[0024] In summary, the main function of the sealing structure is to prevent liquids, gases, or other media from leaking out of the joints, connections, or inside the container of the mechanical device. A good sealing effect of the sealing structure can reduce the loss of media. By connecting the inner liner body 1 with the metal mounting part 4, the inner liner body 1 and the metal mounting part 4 can be connected through the mounting block 6, thereby forming a closed air ring. The higher the temperature, the better the sealing effect. This allows the PTFE inner liner sealing structure to have a good sealing effect when in use. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A polytetrafluoroethylene liner sealing structure, comprising a liner body (1), a first recess (2), a second recess (3) and a metal mounting (4), characterized in that: a first recess (2) is formed at the center of the liner body (1), a second recess (3) is formed at one end of the liner body (1), the second recess (3) is uniformly distributed at one end of the liner body (1), a metal mounting (4) is arranged on the surface of the liner body (1), and an installation groove (5) is formed in the interior of the metal mounting (4).

2. The polytetrafluoroethylene liner sealing structure according to claim 1, characterized by: An installation block (6) connected with the metal mounting (4) is arranged in the installation groove (5), the installation block (6) is symmetrically distributed in the installation groove (5), and the shape of the installation block (6) is arranged as an "L" shape.

3. The polytetrafluoroethylene liner sealing structure according to claim 1, characterized by: A plug-in groove (7) is formed at the bottom end of the liner body (1), the plug-in groove (7) is symmetrically distributed at the bottom end of the liner body (1), a locking groove (8) is formed on one side of the plug-in groove (7), and the locking groove (8) is symmetrically distributed on one side of the plug-in groove (7).

4. The polytetrafluoroethylene liner sealing structure according to claim 3, characterized by: Reserve grooves are formed on both sides of the locking groove (8), a fixed rod (9) is arranged in the reserve grooves, and the fixed rod (9) is symmetrically distributed in the reserve grooves.

5. The polytetrafluoroethylene liner sealing structure according to claim 4, characterized by: A displacement block (10) is slidably connected to the surface of the fixed rod (9), the displacement block (10) is symmetrically distributed on the surface of the fixed rod (9), a limiting block (11) is arranged on one side of the fixed rod (9), and the shape of the limiting block (11) is arranged as a trapezoidal shape.

6. The polytetrafluoroethylene liner sealing structure according to claim 2, characterized by: A limiting groove (12) is formed in the interior of the installation block (6) on one side close to the limiting block (11), the limiting groove (12) is symmetrically distributed on both sides of the installation block (6), and a connecting rod (13) is rotatably connected between the limiting block (11) and the displacement block (10) through a rotating shaft.

7. The polytetrafluoroethylene liner sealing structure according to claim 6, characterized by: A limiting spring (14) is connected between one end of the displacement block (10) and the liner body (1).

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