Device for improving uniformity of polytetrafluoroethylene storage tank lining
By installing an extension tube and a smoothing component inside the storage tank, the problems of wrinkles and poor adhesion during the laying of PTFE storage tank linings were solved, achieving full fit between the lining and the tank wall and improving the tank's sealing performance and corrosion resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 南通旭之初新材料科技有限公司
- Filing Date
- 2025-04-24
- Publication Date
- 2026-05-15
AI Technical Summary
Existing PTFE storage tank liners are prone to wrinkles, curling, and poor adhesion during installation, resulting in poor corrosion protection and shortened service life.
Design a device that includes an extension cylinder and smoothing components. Multiple smoothing components on the extension cylinder are extended radially. By utilizing the rotation and movement of smoothing rollers and synchronous arms, multi-angle and multi-directional rolling smoothing of the lining is achieved. Combined with a mechanical pressing mechanism and a return spring, the lining is ensured to fully adhere to the tank wall.
It significantly improves the smoothness and density of the lining, enhances the sealing performance and corrosion resistance of the storage tank, reduces human error, and improves the adhesion quality and service life of the lining.
Smart Images

Figure CN224240372U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of storage tank lining technology, and in particular to a device for improving the uniformity of polytetrafluoroethylene (PTFE) storage tank linings. Background Technology
[0002] Polytetrafluoroethylene (PTFE) is widely used for lining various storage tanks due to its excellent chemical stability, corrosion resistance, and high-temperature resistance. It is particularly suitable for small storage tanks storing corrosive liquids such as acids, alkalis, and organic solvents. To improve the durability and sealing of storage tanks, a PTFE lining is often attached to the inner wall of the tank to achieve corrosion protection.
[0003] In existing technologies, PTFE tank linings are mainly processed through manual application or mold pressing. However, most current PTFE lining processes rely on manual operation or semi-automatic film application devices for film laying and pressing. Due to the rigidity and resilience of the film material, wrinkles, curling edges, and incomplete adhesion are prone to occur during application, especially in smaller, relatively enclosed tanks, where effective lining pressing is even more difficult. Furthermore, manual methods struggle to ensure uniformity in the compaction process, easily leaving air bubbles or voids between the lining and the tank wall, leading to defects such as localized leakage and peeling during later use, affecting the overall anti-corrosion effect and service life of the lining. Therefore, this invention proposes a device to improve the uniformity of PTFE tank linings to enhance lining adhesion quality, optimize lining effects, and improve the overall performance of the tank. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose a device to improve the uniformity of polytetrafluoroethylene (PTFE) tank lining, so as to solve the problems of wrinkles, curling edges, and poor adhesion that easily occur during membrane material laying.
[0005] To achieve the above objectives, this utility model provides a device for improving the uniformity of polytetrafluoroethylene (PTFE) storage tank linings, comprising a storage tank body, a lining body disposed on the inner wall of the storage tank body, an extension cylinder disposed at the center of the storage tank body, and multiple sets of smoothing components disposed on the extension cylinder; the smoothing components are used to smooth the lining body inside the storage tank body.
[0006] Preferably, the smoothing assembly includes multiple sets of fixed seats disposed on the extension cylinder, a deflection arm rotatably disposed on the fixed seat, a synchronizing arm disposed on the deflection arm, each deflection arm being rotatably connected to the synchronizing arm, a mounting plate disposed at both ends of the synchronizing arm, a rotating rod disposed on the mounting plate, a smoothing roller disposed at both ends of the rotating rod, an extension plate disposed on the smoothing roller, and the extension plate being in contact with the lining body.
[0007] Preferably, the mounting plate is set at a 30-degree angle to the synchronous arm, and the surface of the extension plate is made of rubber.
[0008] Preferably, the extension cylinder is provided with a fixing collar, the fixing collar is also provided with multiple sets of fixing seats, and the fixing seats are provided with another set of deflection arms.
[0009] Preferably, a push rod is provided through the extension cylinder, one end of the push rod passes through the fixing collar, a return spring is sleeved on the fixing collar, one end of the return spring is provided with a limiting ring, the other end of the return spring is provided on one side of the fixing collar, and the push rod passes through the limiting ring.
[0010] Preferably, one end of the push rod is provided with a pressing head, which is circular in shape.
[0011] Preferably, a set of guide grooves are provided on the inner wall of the extension cylinder, and the guide grooves have a reciprocating double thread structure.
[0012] Preferably, a contact head is provided at one bottom end of the push rod, and the contact head is slidably disposed in the guide groove.
[0013] Preferably, a limiting head is provided at the bottom of the extension tube.
[0014] The beneficial effects of this utility model are:
[0015] 1. By setting an extension cylinder at the center of the storage tank body and installing multiple sets of smoothing components on the extension cylinder, the smoothing components are radially extended to fit close to the inner wall of the storage tank body. Driven by manual operation and mechanical movement, the lining body is rolled and smoothed from multiple angles and directions. Through rolling or sliding action, the lining body is uniformly compacted by the multiple sets of smoothing components on the extension cylinder, so that the lining material is fully attached to the tank wall, significantly improving the flatness and density of the lining, avoiding lining failure caused by problems such as air bubbles and wrinkles, and helping to improve the sealing performance and corrosion resistance of the storage tank.
[0016] 2. During rotation and movement, the smoothing roller rolls on the surface of the lining body, and the extension plate follows suit and slides into contact, achieving dynamic smoothing of the lining material. The mounting plate is set at a 30-degree angle with the synchronous arm, so that the roller has a certain pressing angle during operation, enhancing the bonding effect. Multi-level connection enables multi-point synchronous smoothing operation, improving work efficiency. The smoothing roller rotates flexibly through the rotating rod, and the extension plate is made of rubber material, which can effectively conform to the curved shape of the inner wall of the storage tank. During the bonding process, it flexibly contacts the lining body, playing the roles of buffering, anti-scratching film and uniform compaction. This structure helps to reduce human operation error and improve the adhesion quality and smoothness of the lining of small PTFE storage tanks.
[0017] 3. A fixed collar is installed on the extension cylinder, and another set of deflection arms are provided on the fixed collar to further enhance the control of the smoothing range and angle. A push rod is installed through the extension cylinder, with one end of the push rod extending through the fixed collar and connected to an arc-shaped pressing head. A return spring is fitted on the outside of the push rod, with one end of the return spring abutting against a limiting ring and the other end abutting against one side of the fixed collar, forming an axial elastic structure. A contact head is provided at the bottom of the push rod, and the contact head slides in a guide groove on the inner wall of the extension cylinder. The guide groove has a reciprocating double thread structure, which guides the contact head to move along a spiral path during the pushing process. When the pressing head is pressed, the push rod... The device moves downwards, and under the action of the guide groove, the contact head moves along the double-threaded trajectory, realizing the rotation and lifting linkage of the extension cylinder. Through the mechanical pressing mechanism and the double-threaded guide groove, the combined action of rotation and lifting of the rolling component without electric drive is realized, which effectively improves the uniformity and integrity of the smoothing path. The return spring design ensures that the push rod automatically returns to its original position after pressing and releasing, which is convenient for continuous operation. The arc-shaped pressing head fits the hand shape, making it comfortable to operate and easy to control manually. The device has a compact structure and good linkage, and is suitable for the lining treatment of small PTFE storage tanks. It can improve the uniformity and efficiency of lining pressing, and the movement limit is finally controlled by the bottom limiting head. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the present invention;
[0020] Figure 2 This is a partial cross-sectional view of the storage tank body of this utility model;
[0021] Figure 3 This is a schematic diagram of the smoothing component of this utility model;
[0022] Figure 4 This is a schematic diagram of the smoothing roller of this utility model;
[0023] Figure 5 This is a schematic diagram of the push rod of this utility model;
[0024] Figure 6 This is a partial cross-sectional view of the extension tube of this utility model.
[0025] The following are labeled in the diagram: 1. Tank body; 2. Lining body; 3. Extension cylinder; 4. Fixing base; 5. Deflection arm; 6. Synchronizing arm; 7. Mounting plate; 8. Rotating rod; 9. Smoothing roller; 10. Extension plate; 11. Fixing collar; 12. Push rod; 13. Pressing head; 14. Restricting ring; 15. Return spring; 16. Contact head; 17. Restricting head; 18. Guide groove. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0027] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0028] like Figures 1-6 As shown, an apparatus for improving the uniformity of polytetrafluoroethylene (PTFE) storage tank lining includes a storage tank body 1, a lining body 2 disposed on the inner wall of the storage tank body 1, an extension cylinder 3 disposed at the center inside the storage tank body 1, and multiple sets of smoothing components disposed on the extension cylinder 3; the smoothing components are used to smooth the lining body 2 inside the storage tank body 1.
[0029] By setting an extension cylinder 3 at the center of the tank body 1 and installing multiple sets of smoothing components on the extension cylinder 3, the smoothing components are radially extended and close to the inner wall of the tank body 1. Under the action of manual labor and mechanical movement, the lining body 2 is rolled and smoothed from multiple angles and directions. Through the rolling or sliding action, the multiple sets of smoothing components on the extension cylinder 3 uniformly compact the lining body 2, so that the lining material is fully attached to the tank wall, which significantly improves the flatness and density of the lining, avoids lining failure caused by problems such as air bubbles and wrinkles, and helps to improve the sealing performance and corrosion resistance of the tank.
[0030] like Figures 1-4As shown, the smoothing assembly includes multiple sets of fixed seats 4 mounted on the extension cylinder 3. A deflection arm 5 is rotatably mounted on the fixed seat 4, and a synchronizing arm 6 is mounted on the deflection arm 5. Each deflection arm 5 is rotatably connected to the synchronizing arm 6. Mounting plates 7 are respectively mounted on both ends of the synchronizing arm 6. A rotating rod 8 is mounted on the mounting plate 7. Smoothing rollers 9 are mounted on both ends of the rotating rod 8. An extension plate 10 is mounted on the smoothing roller 9. The extension plate 10 is in contact with the lining body 2. The mounting plate 7 is set at a 30-degree angle to the synchronizing arm 6, and the surface of the extension plate 10 is made of rubber.
[0031] During rotation and movement, the smoothing roller 9 rolls on the surface of the lining body 2, and the extension plate 10 follows suit and slides into contact, realizing dynamic smoothing of the lining material. The mounting plate 7 is set at a 30-degree angle with the synchronous arm 6, so that the roller has a certain pressing angle during operation, enhancing the bonding effect. Multi-point synchronous smoothing operation is achieved through multi-level connection, improving work efficiency. The smoothing roller 9 rotates flexibly through the rotating rod 8, and the extension plate 10 is made of rubber material, which can effectively conform to the curved shape of the inner wall of the storage tank. During the bonding process, it flexibly contacts the lining body 2, playing the roles of buffering, anti-scratching film and uniform compaction. This structure helps to reduce human operation error and improve the adhesion quality and flatness of the lining of small polytetrafluoroethylene storage tanks.
[0032] like Figures 1-6 As shown, a fixing collar 11 is provided on the extension cylinder 3, and multiple sets of fixing seats 4 are also provided on the fixing collar 11. Another set of deflection arms 5 is provided on the fixing seats 4. A push rod 12 is installed through the extension cylinder 3. One end of the push rod 12 passes through the fixing collar 11. A return spring 15 is sleeved on the fixing collar 11. A limiting ring 14 is provided at one end of the return spring 15. The other end of the return spring 15 is located on one side of the fixing collar 11. The push rod 12 passes through the limiting ring 14. A pressing head 13 is provided at one end of the push rod 12. The pressing head 13 is circular. A set of guide grooves 18 is opened on the inner wall of the extension cylinder 3. The guide grooves 18 have a reciprocating double thread structure. A contact head 16 is provided at the bottom end of the push rod 12. The contact head 16 is slidably disposed in the guide groove 18. A limiting head 17 is provided at the bottom of the extension cylinder 3.
[0033] A fixing collar 11 is provided on the extension cylinder 3, and another set of deflection arms 5 are provided on the fixing collar 11 to further enhance the control of the smoothing range and angle. A push rod 12 is installed inside the extension cylinder 3. One end of the push rod 12 extends through the fixing collar 11 and is connected to the arc-shaped pressing head 13. A return spring 15 is sleeved on the outside of the push rod 12. One end of the return spring 15 abuts against the limiting ring 14, and the other end abuts against one side of the fixing collar 11 to form an axial elastic structure. A contact head 16 is provided at the bottom of the push rod 12. The contact head 16 slides in the guide groove 18 on the inner wall of the extension cylinder 3. The guide groove 18 has a reciprocating double thread structure, which can guide the contact head 16 to move along the spiral path during the pushing process. When the pressing head 1... When pressed, the push rod 12 moves downward, and under the action of the guide groove 18, it drives the contact head 16 to move along the double thread track, realizing the rotation and lifting linkage of the extension cylinder 3. Through the mechanical pressing mechanism and the double thread guide groove 18, the combined action of rotation and lifting of the rolling component without electric drive is realized, which effectively improves the uniformity and integrity of the smoothing path. The reset spring 15 design ensures that the push rod 12 automatically resets after the press is released, which is convenient for continuous operation. The arc-shaped pressing head 13 fits the hand shape, making it comfortable to operate and easy to control manually. The device has a compact structure and good linkage, which is suitable for the lining treatment of small polytetrafluoroethylene storage tanks. It can improve the uniformity and efficiency of lining pressing. Finally, the movement limit is controlled by the bottom limiting head 17.
[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0035] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An apparatus for improving the uniformity of a polytetrafluoroethylene (PTFE) storage tank lining, comprising a tank body (1), wherein a lining body (2) is disposed on the inner wall of the tank body (1), characterized in that, An extension cylinder (3) is provided at the center of the tank body (1), and multiple smoothing components are provided on the extension cylinder (3). The smoothing component is used to smooth the lining body (2) inside the tank body (1).
2. The device for improving the uniformity of polytetrafluoroethylene (PTFE) storage tank lining according to claim 1, characterized in that, The smoothing assembly includes multiple sets of fixed seats (4) disposed on the extension cylinder (3). A deflection arm (5) is rotatably disposed on the fixed seat (4). A synchronizing arm (6) is rotatably disposed on the deflection arm (5). Each deflection arm (5) is rotatably connected to the synchronizing arm (6). Mounting plates (7) are respectively disposed at both ends of the synchronizing arm (6). A rotating rod (8) is disposed on the mounting plate (7). Smoothing rollers (9) are disposed at both ends of the rotating rod (8). An extension plate (10) is disposed on the smoothing roller (9). The extension plate (10) is in contact with the lining body (2).
3. The device for improving the uniformity of polytetrafluoroethylene (PTFE) storage tank lining according to claim 2, characterized in that, The mounting plate (7) is set at a 30-degree angle to the synchronous arm (6), and the surface of the extension plate (10) is made of rubber.
4. The device for improving the uniformity of polytetrafluoroethylene (PTFE) storage tank lining according to claim 3, characterized in that, The extension cylinder (3) is provided with a fixing collar (11), and the fixing collar (11) is also provided with multiple sets of fixing seats (4), and the fixing seats (4) are provided with another set of deflection arms (5).
5. The device for improving the uniformity of polytetrafluoroethylene (PTFE) storage tank lining according to claim 4, characterized in that, A push rod (12) is provided inside the extension tube (3). One end of the push rod (12) passes through the fixed collar (11). A return spring (15) is sleeved on the fixed collar (11). A limiting ring (14) is provided at one end of the return spring (15). The other end of the return spring (15) is located on one side of the fixed collar (11). The push rod (12) passes through the limiting ring (14).
6. The device for improving the uniformity of polytetrafluoroethylene (PTFE) storage tank lining according to claim 5, characterized in that, One end of the push rod (12) is provided with a pressing head (13), which is circular in shape.
7. The device for improving the uniformity of polytetrafluoroethylene (PTFE) storage tank lining according to claim 6, characterized in that, A set of guide grooves (18) are provided on the inner wall of the extension cylinder (3), and the guide grooves (18) are reciprocating double thread structures.
8. The apparatus for improving the uniformity of polytetrafluoroethylene (PTFE) storage tank lining according to claim 7, characterized in that, The bottom end of the push rod (12) is provided with a contact head (16), which is slidably disposed in the guide groove (18).
9. The apparatus for improving the uniformity of polytetrafluoroethylene (PTFE) storage tank lining according to claim 8, characterized in that, The bottom of the extension tube (3) is provided with a limiting head (17).