A polytetrafluoroethylene seal test device
By designing a PTFE-sealed testing device with a bracket and collection box made of PTFE material, the problem of contamination from corrosive liquid spills was solved, enabling safe and efficient testing operations and extending the device's lifespan.
Patent Information
- Application Number
- CN202521557354.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-12
- Estimated Expiration
- 2035-07-24
AI Technical Summary
During the performance testing of PTFE seals, corrosive liquids are prone to spillage and contamination of laboratory equipment, and existing devices lack an effective collection and treatment mechanism.
A testing device for polytetrafluoroethylene (PTFE) seals was designed, which uses a bracket, a collection box, and a sealing gasket made of PTFE material. The bracket is equipped with a through groove and a top screw for fixing the glass container, and the collection box is used to collect dripping liquid. Combined with a constant temperature water bath and an analytical balance, a safe and efficient testing operation can be achieved.
It effectively collects and treats corrosive liquids, avoids contaminating laboratory equipment, makes operation safer, saves time and effort, and extends the service life of the device.
Smart Images
Figure CN224354287U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polytetrafluoroethylene (PTFE) seals, and in particular to a PTFE seal testing device. Background Technology
[0002] Polytetrafluoroethylene (PTFE) seals are sealing elements made primarily of PTFE. Due to their excellent resistance to high and low temperatures, strong corrosion (resistant to strong acids, strong alkalis, aqua regia, etc.), low coefficient of friction, and good aging resistance, they are widely used in chemical, petroleum, pharmaceutical, and food industries. They can be manufactured in various forms such as O-rings, V-rings, and piston rings. They can prevent media leakage under harsh working conditions and do not react with most chemical substances, meeting the requirements for sealing reliability and durability.
[0003] Currently, when performing performance tests on polytetrafluoroethylene (PTFE) gaskets, corrosion resistance tests are usually conducted. In some tests, the testers will weigh a number of gaskets using an analytical balance, and then suspend them separately inside glass containers containing strong acid and strong alkali solutions. Several parallel samples are required for each sample. After that, they are placed in a constant temperature water bath and kept at a constant temperature for a specified time. Then, they are taken out and dried. Their diameter, thickness, etc. are then measured, and their weight is measured again using an analytical balance to obtain their corrosion weight loss rate.
[0004] However, during the process, when the testers were injecting liquid into each glass container, the large quantity of liquid made it easy for liquid to spill. Furthermore, when the glass containers were removed from the constant temperature water bath and the caps were unscrewed to remove the gaskets, the liquid on the surface of the glass containers, as well as the highly corrosive liquid on the gaskets and hooks, could easily drip onto the workbench, causing adverse effects on the surrounding equipment.
[0005] Therefore, it is necessary to provide a new testing device for polytetrafluoroethylene (PTFE) seals to solve the above-mentioned technical problems. Utility Model Content
[0006] The technical problem solved by this utility model is to provide a polytetrafluoroethylene (PTFE) seal testing device that can avoid collecting corrosive liquids and other liquids during the testing process, thereby preventing them from contaminating the laboratory workbench and other equipment.
[0007] To solve the above-mentioned technical problems, the present invention provides a polytetrafluoroethylene sealing component testing device, comprising: a base, a support structure above the base, the support structure including a fixing frame, the fixing frame being disposed on the upper side of the base, and support legs being fixedly connected to the bottom left and right edges of the fixing frame, the support legs being placed on the base, and a plurality of brackets distributed left and right being slidably connected to the surface of the fixing frame.
[0008] Several support members are fixedly connected to one side wall surface of the bracket and are distributed at equal intervals. Limiting grooves are formed on the surface of the support members. Blocks are fixedly connected to the top surface of the support members located on both sides of the limiting groove. Several container structures are provided on the bracket.
[0009] The container structure includes a glass container placed on the top surface of the bracket. A glass threaded tube is fixedly connected to the top end face of the glass container. A container lid is threadedly connected to the surface of the glass threaded tube. A hook is fixedly connected to the bottom surface of the container lid. The hook is located inside the glass container. A collection box is provided between the two legs. The collection box is located on the lower side of the fixed frame and placed on the top surface of the base.
[0010] As a further embodiment of this utility model, a sealing gasket is fixedly connected to the bottom surface of the container cap located outside the hook, and the top end face of the glass threaded tube abuts against the surface of the sealing gasket.
[0011] The above technical solution allows the device to hold strong acid and strong alkali solutions in a glass container, with a polytetrafluoroethylene (PTFE) container lid and a sealing gasket at the top for sealing.
[0012] As a further embodiment of this utility model, the bracket surface is provided with several through grooves evenly distributed at equal intervals, and the front wall surface of the bracket is threaded with a set screw, the end of the set screw facing the glass container abutting against the front wall surface of the fixing frame.
[0013] Through the above technical solution, the device is equipped with several sets of brackets at the top of the fixed frame. The spacing between the brackets is adjustable. After adjustment, the set screws can be tightened to fix them. Several glass containers are placed above the brackets, and a collection box is below the brackets. When the user wears full protective gear and prepares the laboratory ventilation, the liquid that is accidentally spilled when injecting liquid into the glass container can easily flow into the container and be collected. During subsequent experiments, when the glass container is removed, it can be placed back on the bracket. The water adhering to the surface of the glass container will drip down the channel into the collection box below. When the user needs to unscrew the container cap and drain the highly corrosive liquid on the hook and gasket, it can be hung on the support, so that the hook and gasket hang inside the collection box. In this way, there is no need for manual handling, making the operation safer, more time-saving and labor-saving, and the structural design is user-friendly.
[0014] As a further embodiment of this utility model, a constant temperature water bath and an analytical balance are fixedly connected to the top surface of the base on the left and right sides of the fixed frame, respectively. A support leg is fixedly connected to the top surface of the base on the rear side of the fixed frame. There are two support legs, which are distributed on the left and right sides. A placement platform is fixedly connected between the tops of the two support legs.
[0015] Through the above technical solution, the constant temperature water bath equipment is used to keep each glass container at a constant temperature, and the analytical balance can weigh the pads before and after the test, after they have been drained, rinsed and dried.
[0016] As a further embodiment of this utility model, a label groove is provided on the top surface of the bracket near the top screw, a handle is fixedly connected to the front wall surface of the collection box, and the top of the collection box is set as an opening.
[0017] With the above technical solution, each tray is used to set up parallel samples, so the glass containers on each tray contain the same liquid. Users can affix the corresponding solution name to the label slot, which makes it convenient for users to operate.
[0018] As a further embodiment of this utility model, the base, placement platform, bracket, support, handle, stop block, fixing frame, support leg, collection box, sealing gasket, hook and container lid are all made of polytetrafluoroethylene material.
[0019] By using the above technical solution, the main structures in the device are made of corrosion-resistant polytetrafluoroethylene material, which can give it a longer service life and reduce the frequency of structural replacement.
[0020] Compared with related technologies, the PTFE sealing component testing device provided by this utility model has the following advantages:
[0021] The device features several sets of brackets at the top of the fixed frame. The spacing between the brackets is adjustable, and after adjustment, tightening the set screws secures them. Several glass containers are placed above the brackets, and a collection box is located below. When the user wears full protective gear and prepares the laboratory with proper ventilation, any spilled liquid when injecting liquid into the glass containers will easily flow into the containers and be collected. During subsequent experiments, when removing the glass containers, they can be placed back on the brackets. Water adhering to the surface of the glass containers will drip down the channel into the collection box below. If the user needs to unscrew the container cap and drain the highly corrosive liquid from the hooks and gaskets, they can hang them on the support, allowing the hooks and gaskets to suspend inside the collection box. This eliminates the need for manual handling, making the operation safer, more time-saving, and labor-saving, demonstrating a user-friendly structural design. Attached Figure Description
[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0023] Figure 1 This is a schematic diagram of the overall structure of a polytetrafluoroethylene sealing component testing device according to the present invention;
[0024] Figure 2 This is a partial structural schematic diagram of a polytetrafluoroethylene sealing component testing device according to the present invention;
[0025] Figure 3 This is a partial structural disassembly diagram of a polytetrafluoroethylene sealing component testing device according to the present invention;
[0026] Figure 4 This is a partial structural cross-sectional view of a polytetrafluoroethylene sealing component testing device according to the present invention.
[0027] Explanation of key symbols:
[0028] 1. Base; 2. Support structure; 3. Container structure; 4. Constant temperature water bath equipment; 5. Placement platform; 6. Analytical balance; 7. Support legs; 8. Fixing frame; 9. Collection box; 10. Bracket; 11. Support component; 12. Limiting groove; 13. Stop block; 14. Through groove; 15. Label groove; 16. Top screw; 17. Container lid; 18. Hook; 19. Glass container; 20. Glass threaded tube; 21. Sealing gasket. Detailed Implementation
[0029] Please combine Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of a polytetrafluoroethylene sealing component testing device according to the present invention; Figure 2 This is a partial structural schematic diagram of a polytetrafluoroethylene sealing component testing device according to the present invention; Figure 3 This is a partial structural disassembly diagram of a polytetrafluoroethylene sealing component testing device according to the present invention; Figure 4 This is a partial structural cross-sectional view of a polytetrafluoroethylene (PTFE) seal testing device according to the present invention. The PTFE seal testing device includes:
[0030] A base 1 is provided on the top of the base 1. The support structure 2 includes a fixed frame 8. The fixed frame 8 is located on the upper side of the base 1. Support legs 7 are fixedly connected to the bottom left and right edges of the fixed frame 8. The support legs 7 are placed on the base 1. Several brackets 10 distributed on the left and right are slidably connected to the surface of the fixed frame 8.
[0031] A number of support members 11 are fixedly connected to one side wall surface of the bracket 10 and are distributed at equal intervals. Limiting grooves 12 are opened on the surface of the support members 11. Blocks 13 are fixedly connected to the top surface of the support members 11 located on both sides of the limiting groove 12. A number of container structures 3 are provided on the bracket 10.
[0032] The container structure 3 includes a glass container 19, which is placed on the top surface of the bracket 10. A glass threaded tube 20 is fixedly connected to the top end face of the glass container 19. A container cap 17 is threadedly connected to the surface of the glass threaded tube 20. A hook 18 is fixedly connected to the bottom surface of the container cap 17. The hook 18 is located inside the glass container 19. A collection box 9 is provided between the two support legs 7. The collection box 9 is located on the lower side of the fixed frame 8 and is placed on the top surface of the base 1.
[0033] like Figure 1-4 As shown, a sealing gasket 21 is fixedly connected to the bottom surface of the container cap 17 located outside the hook 18, and the top end face of the glass threaded tube 20 abuts against the surface of the sealing gasket 21.
[0034] The device uses a glass container 19 to hold strong acid and strong alkali solutions, and the top is fitted with a container lid 17 made of polytetrafluoroethylene and a sealing gasket 21 to achieve a seal.
[0035] like Figure 1-4 As shown, the bracket 10 has several through slots 14 evenly distributed at equal intervals in the front and back. The front wall surface of the bracket 10 is threaded with a set screw 16, and the end of the set screw 16 facing the glass container 19 abuts against the front wall surface of the fixing frame 8.
[0036] The device has several sets of brackets 10 on the top of the fixed frame 8. The spacing between the brackets 10 is adjustable. After adjustment, tightening the set screw 16 will fix them. Several glass containers 19 are placed above the brackets 10, and a collection box 9 is below the brackets 10. When the user wears full protective gear and prepares the laboratory ventilation, and then injects liquid into the glass container 19, any spilled liquid will easily flow into the container and be collected. During subsequent experiments, when the glass container 19 is removed, it can be placed back on the bracket 10. The water adhering to the surface of the glass container 19 will drip down the channel 14 into the collection box 9 below. When the user needs to unscrew the container cap 17 and drain the highly corrosive liquid from the hook 18 and the gasket, it can be hung on the support 11 so that the hook 18 and the gasket hang inside the collection box 9. This eliminates the need for manual handling, making the operation safer, more time-saving, and labor-saving. The structural design is user-friendly.
[0037] like Figure 1-4 As shown, a constant temperature water bath device 4 and an analytical balance 6 are fixedly connected to the top surface of the base 1 located on the left and right sides of the fixed frame 8, respectively. A support leg is fixedly connected to the top surface of the base 1 located on the rear side of the fixed frame 8. There are two support legs, which are distributed on the left and right sides. A placement platform 5 is fixedly connected between the tops of the two support legs.
[0038] The constant temperature water bath equipment 4 is used to keep each glass container 19 at a constant temperature, while the analytical balance 6 can weigh the gaskets after they have been drained, rinsed and dried before and after the test.
[0039] like Figure 1-4 As shown, a label slot 15 is provided on the top surface of the bracket 10 near the top screw 16, a handle is fixedly connected to the front wall surface of the collection box 9, and the top of the collection box 9 is set as an opening.
[0040] Each tray 10 is used to set up parallel samples, so the glass containers 19 on each tray 10 contain the same liquid. Users can affix the corresponding solution name to the label slot 15 to facilitate user operation.
[0041] like Figure 1-4 As shown, the base 1, placement platform 5, bracket 10, support 11, handle, stop block 13, fixing frame 8, support leg 7, collection box 9, sealing gasket 21, hook 18 and container lid 17 are all made of polytetrafluoroethylene material.
[0042] By making the main structures in the device with corrosion-resistant polytetrafluoroethylene (PTFE), its service life can be extended and the frequency of structural replacement can be reduced.
[0043] The working principle of the polytetrafluoroethylene (PTFE) sealing component testing device provided by this utility model is as follows:
[0044] The device has several sets of brackets 10 on the top of the fixed frame 8. The spacing between the brackets 10 is adjustable. After adjustment, tightening the set screw 16 will fix them. Several glass containers 19 are placed above the brackets 10, and a collection box 9 is below the brackets 10. When the user wears full protective gear and prepares the laboratory ventilation, and then injects liquid into the glass container 19, any spilled liquid will easily flow into the container and be collected. During subsequent experiments, when the glass container 19 is removed, it can be placed back on the bracket 10. The water adhering to the surface of the glass container 19 will drip down the channel 14 into the collection box 9 below. When the user needs to unscrew the container cap 17 and drain the highly corrosive liquid from the hook 18 and the gasket, it can be hung on the support 11 so that the hook 18 and the gasket hang inside the collection box 9. This eliminates the need for manual handling, making the operation safer, more time-saving, and labor-saving. The structural design is user-friendly.
[0045] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0046] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0047] 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, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.
Claims
1. A testing device for polytetrafluoroethylene (PTFE) seals, characterized in that, Includes a base (1), and a support structure (2) is provided above the base (1). The support structure (2) includes a fixed frame (8), which is located on the upper side of the base (1). Support legs (7) are fixedly connected to the bottom left and right edges of the fixed frame (8). The support legs (7) are placed on the base (1). Several brackets (10) distributed on the left and right sides are slidably connected to the surface of the fixed frame (8). A number of support members (11) are fixedly connected to one side wall surface of the bracket (10) and are distributed at equal intervals in front and behind. A limiting groove (12) is opened on the surface of the support member (11). A stop block (13) is fixedly connected to the top surface of the support member (11) located on both sides of the limiting groove (12). A number of container structures (3) are provided on the bracket (10). The container structure (3) includes a glass container (19), which is placed on the top surface of the bracket (10). A glass threaded tube (20) is fixedly connected to the top end face of the glass container (19). A container lid (17) is threadedly connected to the surface of the glass threaded tube (20). A hook (18) is fixedly connected to the bottom surface of the container lid (17). The hook (18) is located inside the glass container (19). A collection box (9) is provided between the two legs (7). The collection box (9) is located on the lower side of the fixed frame (8) and is placed on the top surface of the base (1).
2. The PTFE seal testing device as described in claim 1, characterized in that, A sealing gasket (21) is fixedly connected to the bottom surface of the container cap (17) located outside the hook (18), and the top end face of the glass threaded tube (20) abuts against the surface of the sealing gasket (21).
3. The PTFE seal testing device as described in claim 2, characterized in that, The bracket (10) has several through slots (14) evenly distributed at equal intervals on its surface. The front wall surface of the bracket (10) is threaded with a set screw (16). The end of the set screw (16) facing the glass container (19) abuts against the front wall surface of the fixing frame (8).
4. The polytetrafluoroethylene sealing component testing device as described in claim 3, characterized in that, The top surfaces of the bases (1) located on the left and right sides of the fixed frame (8) are respectively fixedly connected to a constant temperature water bath (4) and an analytical balance (6). The top surface of the base (1) located on the rear side of the fixed frame (8) is fixedly connected to a support leg. There are two support legs, which are distributed on the left and right. A placement platform (5) is fixedly connected between the tops of the two support legs.
5. The polytetrafluoroethylene seal testing device as described in claim 4, characterized in that, A label groove (15) is provided on the top surface of the bracket (10) near the top screw (16), a handle is fixedly connected to the front wall surface of the collection box (9), and the top of the collection box (9) is set as an opening.
6. The polytetrafluoroethylene seal testing device as described in claim 5, characterized in that, The base (1), placement platform (5), bracket (10), support (11), handle, stop (13), fixing frame (8), support leg (7), collection box (9), sealing gasket (21), hook (18) and container lid (17) are all made of polytetrafluoroethylene.