Traction device for lining polytetrafluoroethylene pipe in pipe
By designing a traction device for PTFE-lined pipes, and utilizing structures such as traction brackets and winding motors, the problem of damage to the PTFE-lined pipes caused by uneven pressure during manual connection was solved, achieving stable traction and fixation.
Patent Information
- Application Number
- CN202422617925.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-29
AI Technical Summary
During the process of lining the inside of the pipe with PTFE tubing, manual connection is troublesome and the pressure is uneven, which can easily damage the PTFE lining.
A traction device including a traction bracket, an extension frame, a fixing screw, a locking screw groove, a guide wheel, and a winding motor is designed. Through structures such as a sliding groove, a fixing block, a traction steel cable, and a limit sleeve, the device realizes the functions of adjusting the operating frame, traction connection, and extending material guidance.
This method achieves stable traction and fixation of the PTFE tube, avoids uneven pressure caused by manual connection, and ensures the integrity of the PTFE inner liner and the protection of the weld.
Smart Images
Figure CN223545790U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traction device technology, specifically a traction device for PTFE-lined pipes. Background Technology
[0002] PTFE is a polymer of tetrafluoroethylene. PTFE has excellent heat and cold resistance and can be used for extended periods between -180 and 260ºC. This material is resistant to acids, alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has high temperature resistance and an extremely low coefficient of friction, so it can be used for lubrication and is also an ideal coating for easy-to-clean water pipe inner layers. PTFE is widely used in various applications requiring resistance to acids, alkalis, and organic solvents, and it is itself non-toxic to humans.
[0003] The process of lining steel pipes with PTFE tubing involves fitting the PTFE tubing inside the steel pipe, ensuring a tight seal between the tubing and the tubing. The strong bond between the PTFE liner and the steel pipe effectively limits the asynchronous expansion and contraction caused by temperature changes. This prevents the PTFE liner from bulging under varying temperatures, ensuring its integrity and protecting the weld seam from compression and tension, thus preventing weld breakage and lining damage. However, manually inserting the PTFE liner into the steel pipe during construction is cumbersome, and uneven pressure can easily damage the PTFE liner. Therefore, we propose a traction device for PTFE-lined steel pipes to address these issues. Summary of the Invention
[0004] The purpose of this invention is to provide a traction device for PTFE-lined pipes to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a traction device for PTFE-lined pipes, comprising a traction bracket, sliding grooves at the front and rear ends of the traction bracket, an extension frame inserted on the right side of the traction bracket, a fixing screw inserted on the inner side of the extension frame, a locking screw groove sleeved on the outer side of the fixing screw, a fixing block provided inside the traction bracket, and a fixing pipe body installed inside the traction bracket.
[0006] Preferably, the fixing screw is inserted into the sliding groove inside the extension frame and the traction bracket, the extension frame slides on the right side of the traction bracket, and the fixing screw is driven by the extension frame to slide in the sliding groove inside the traction bracket.
[0007] Preferably, the locking screw groove is sleeved on the outside of the fixing screw and contacts the sliding groove inside the traction bracket, and the fixing tube is placed at the top between the fixing block and the extension frame inside the traction bracket.
[0008] Preferably, a guide wheel is installed on the top left side of the traction bracket, a guide rod is installed on the top left side of the traction bracket, a mechanical mounting frame is installed on the left side of the traction bracket, a winding motor is installed on the top of the mechanical mounting frame, a linkage seat is installed at the rear end of the winding motor, and a support crossbar is connected to the front end of the mechanical mounting frame.
[0009] Preferably, a traction winding frame is inserted at the rear end of the linkage seat, a traction steel cable is sleeved on the outside of the traction winding frame, a connecting seat is installed on one side of the traction steel cable, a movable fixing buckle is installed on one side of the connecting seat, a connecting hook is sleeved inside the movable fixing buckle, a limit seat is connected to one side of the connecting hook, and a limit sleeve is sleeved on the outside of the limit seat.
[0010] Preferably, the movable fixing buckle is connected to the traction steel cable via a connecting seat, the winding motor drives the traction winding frame and the traction steel cable outside the traction winding frame to wind up via a linkage seat, the limiting seat is connected to the movable fixing buckle via a connecting hook, and the limiting sleeve is sleeved on the outside of the limiting seat via a connecting hook.
[0011] Preferably, a support rod is installed on the right side of the extension frame, a guide wheel is sleeved on the outside of the support rod, extension rods are inserted into the front and rear ends of the support rod, and snap-fit buckles are provided at the front and rear ends of the right side of the extension frame.
[0012] Preferably, the support rod drives the guide wheel to rotate on the right side of the extension frame, the extension rod rotates at the front and rear ends of the support rod and engages with the snap fasteners at the front and rear ends of the extension frame, and the guide wheel is fixed to one side of the extension frame by the support rod.
[0013] Compared with the prior art, the beneficial effects of this utility model are: this traction device for PTFE-lined pipes not only realizes the operation frame adjustment function and the traction connection function, but also realizes the extension and material guiding function.
[0014] By setting an operating frame adjustment structure, the advantages of this utility model are as follows: In use, by contacting the left flange of the fixed tube body with the fixed block inside the traction bracket, the extension frame slides on the right side of the traction bracket, allowing the fixing screw inserted inside the extension frame to slide inside the sliding groove inside the extension frame, allowing the right flange of the fixed tube body to contact the right side of the extension frame, and allowing the fixing screw with the locking screw groove sleeved on the front sliding groove of the traction bracket to fix the extension frame inside the traction bracket, thereby realizing the operating frame adjustment function and fixing the fixed tube body to the top of the traction bracket;
[0015] By setting up a traction connection structure, the advantages of this utility model are as follows: In use, the traction steel cable drives the right-side connecting seat and the movable fixing buckle to be inserted into the fixed tube body placed at the top of the traction bracket. The winding motor drives the traction winding frame through the linkage seat to send the traction steel cable into the tube body and through the fixed tube body. After the inner PTFE-lined tube is sleeved on the outside of the limiting seat, the limiting sleeve is sleeved on the outside of the limiting seat and the PTFE tube to fix them. The movable fixing buckle on the left side of the limiting seat is connected to the connecting hook. The winding motor drives the traction winding frame through the linkage seat to wind the traction steel cable and pull the PTFE tube into the inside of the fixed tube body, thereby realizing the traction connection function.
[0016] By setting an extended material guiding structure, the present invention is beneficial in that: when in use, the support rod drives the guide wheel to rotate on the right side of the extension frame, and then the extension rod at the front end of the support rod rotates and engages with the snap-fit buckles at the front and rear ends of the extension frame, fixing the guide wheel at the top of the support rod to the right side of the extension frame. When pulling the PTFE tube, the guide wheel supports and guides it, thereby realizing the extended material guiding function. Attached Figure Description
[0017] Figure 1 This is a front view structural diagram of the present utility model;
[0018] Figure 2 This is a schematic cross-sectional view of the traction bracket and extension frame of this utility model;
[0019] Figure 3 This is an enlarged structural schematic diagram of the traction cable and limiting seat of this utility model;
[0020] Figure 4 This is a front view structural diagram of the extension frame and guide wheel of this utility model.
[0021] In the diagram: 1. Rewinding motor; 2. Linkage seat; 3. Traction winding frame; 4. Mechanical mounting frame; 5. Guide rod; 6. Guide wheel; 7. Traction cable; 8. Connecting hook; 9. Traction bracket; 10. Fixed tube; 11. Locking screw groove; 12. Sliding groove; 13. Support crossbar; 14. Extension frame; 15. Guide wheel; 16. Connecting seat; 17. Movable fixing buckle; 18. Limiting sleeve; 19. Limiting seat; 20. Fixing block; 21. Fixing screw; 22. Support rod; 23. Snap-fit buckle; 24. Extension rod. Detailed Implementation
[0022] 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.
[0023] Example 1: Please refer to Figure 1-4 A traction device for PTFE-lined pipes includes a traction bracket 9, with sliding grooves 12 at the front and rear ends of the traction bracket 9, an extension frame 14 inserted on the right side of the traction bracket 9, a fixing screw 21 inserted on the inner side of the extension frame 14, a locking screw groove 11 sleeved on the outer side of the fixing screw 21, a fixing block 20 inside the traction bracket 9, and a fixing pipe body 10 installed inside the traction bracket 9.
[0024] The fixing screw 21 is inserted into the sliding groove 12 inside the extension frame 14 and the traction bracket 9. The extension frame 14 slides on the right side of the traction bracket 9. The fixing screw 21 is driven by the extension frame 14 to slide in the sliding groove 12 inside the traction bracket 9. The locking screw groove 11 is sleeved on the outside of the fixing screw 21 and contacts the sliding groove 12 inside the traction bracket 9. The fixing tube 10 is placed at the top between the fixing block 20 and the extension frame 14 inside the traction bracket 9.
[0025] Specifically, such as Figure 1 and Figure 2 As shown, by setting up an operating frame adjustment structure, during use, the left flange of the fixed tube 10 is brought into contact with the fixed block 20 inside the traction bracket 9, and the extension frame 14 is slid on the right side of the traction bracket 9. The fixing screw 21 inserted inside the extension frame 14 slides inside the sliding groove 12 inside the extension frame 14, so that the right flange of the fixed tube 10 contacts the right side of the extension frame 14. The fixing screw 21, which is fitted with the locking screw groove 11 on the front sliding groove 12 of the traction bracket 9, fixes the extension frame 14 inside the traction bracket 9, thereby realizing the operating frame adjustment function.
[0026] Example 2: A guide wheel 6 is installed on the top left side of the traction bracket 9, a guide rod 5 is installed on the top left side of the traction bracket 9, a mechanical mounting frame 4 is installed on the left side of the traction bracket 9, a winding motor 1 is installed on the top of the mechanical mounting frame 4, a linkage seat 2 is installed at the rear end of the winding motor 1, a traction winding frame 3 is inserted at the rear end of the linkage seat 2, a traction steel cable 7 is sleeved on the outside of the traction winding frame 3, a connecting seat 16 is installed on one side of the traction steel cable 7, a movable fixing buckle 17 is installed on one side of the connecting seat 16, a connecting hook 8 is sleeved inside the movable fixing buckle 17, a limit seat 19 is connected to one side of the connecting hook 8, and a limit sleeve 18 is sleeved on the outside of the limit seat 19.
[0027] The movable fixing buckle 17 is connected to the traction steel cable 7 through the connecting seat 16. The winding motor 1 drives the traction winding frame 3 and the traction steel cable 7 outside the traction winding frame 3 to wind up through the linkage seat 2. The limiting seat 19 is connected to the movable fixing buckle 17 through the connecting hook 8. The limiting sleeve 18 is sleeved on the outside of the limiting seat 19 through the connecting hook 8.
[0028] Specifically, such as Figure 1 and Figure 3 As shown, by setting up a traction connection structure, during use, the traction steel cable 7 drives the right connecting seat 16 and the movable fixing buckle 17 to be inserted into the fixed tube 10 placed at the top of the traction bracket 9. The winding motor 1 drives the traction winding frame 3 through the linkage seat 2 to send the traction steel cable 7 into the tube and through the fixed tube 10. After the inner PTFE-lined tube is sleeved on the outside of the limiting seat 19, the limiting sleeve 18 is sleeved on the limiting seat 19 and the outside of the PTFE tube to fix them. The movable fixing buckle 17 on the left side of the limiting seat 19 is connected to the connecting hook 8. The winding motor 1 drives the traction winding frame 3 through the linkage seat 2 to wind the traction steel cable 7, pulling the PTFE tube into the inside of the fixed tube 10, thereby realizing the traction connection function.
[0029] Example 3: A support rod 22 is installed on the right side of the extension frame 14. A guide wheel 15 is sleeved on the outside of the support rod 22. An extension rod 24 is inserted into the front and rear ends of the support rod 22. A snap fastener 23 is provided at the front and rear ends of the right side of the extension frame 14.
[0030] The support rod 22 drives the guide wheel 15 to rotate on the right side of the extension frame 14. The extension rod 24 rotates at the front and rear ends of the support rod 22 and engages with the snap-fit buckles 23 at the front and rear ends of the extension frame 14. The guide wheel 15 is fixed to one side of the extension frame 14 through the support rod 22.
[0031] Specifically, such as Figure 1 and Figure 4 As shown, by setting up an extended material guiding structure, during use, the support rod 22 drives the guide wheel 15 to rotate on the right side of the extension frame 14, and then the extension rod 24 at the front end of the support rod 22 is rotated to engage with the snap-fit buckles 23 at the front and rear ends of the extension frame 14, fixing the guide wheel 15 at the top of the support rod 22 to the right side of the extension frame 14. When pulling the PTFE tube, the guide wheel 15 supports and guides it, thereby realizing the extended material guiding function.
[0032] Working Principle: This invention involves contacting the left flange of the fixed tube 10 with the fixing block 20 inside the traction bracket 9, sliding the extension frame 14 on the right side of the traction bracket 9, allowing the fixing screw 21 inserted inside the extension frame 14 to slide within the sliding groove 12 inside the extension frame 14, thus contacting the right flange of the fixed tube 10 with the right side of the extension frame 14. The fixing screw 21, with its locking screw groove 11 fitted onto the sliding groove 12 at the front end of the traction bracket 9, fixes the extension frame 14 inside the traction bracket 9, securing the fixed tube 10 to the top of the traction bracket 9. Then, the traction cable 7 drives the right connecting seat 16 and the movable fixing buckle 17 to insert into the fixed tube 10 placed at the top of the traction bracket 9. Finally, the winding motor 1, through the linkage seat 2, connects to the traction winding frame 3. After the traction steel cable 7 is fed into the pipe and passes through the fixed pipe body 10, one end of the inner PTFE-lined tube is sleeved onto the outside of the limiting seat 19. The limiting sleeve 18 is then sleeved onto the limiting seat 19 and the outside of the PTFE tube to fix them. The support rod 22 drives the guide wheel 15 to rotate on the right side of the extension frame 14. Then, the extension rod 24 at the front end of the support rod 22 is rotated and engaged with the snap-fit buckles 23 at the front and rear ends of the extension frame 14. The guide wheel 15 at the top of the support rod 22 is fixed on the right side of the extension frame 14. The movable fixing buckle 17 on the left side of the limiting seat 19 is connected to the connecting hook 8. The winding motor 1 drives the traction winding frame 3 to wind the traction steel cable 7 through the linkage seat 2. When traction is applied to the PTFE tube, the guide wheel 15 supports and guides it, pulling the PTFE tube into the interior of the fixed pipe body 10.
[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A traction device for PTFE-lined pipes, comprising a traction bracket (9), characterized in that: The front and rear ends of the traction bracket (9) are provided with sliding grooves (12), the right side of the traction bracket (9) is provided with an extension frame (14), the inner side of the extension frame (14) is provided with a fixing screw (21), the outer side of the fixing screw (21) is provided with a locking screw groove (11), the inside of the traction bracket (9) is provided with a fixing block (20), and the inside of the traction bracket (9) is provided with a fixing tube (10).
2. The traction device for PTFE-lined tubing according to claim 1, characterized in that: The fixing screw (21) is inserted into the sliding groove (12) inside the extension frame (14) and the traction bracket (9). The extension frame (14) slides on the right side of the traction bracket (9). The fixing screw (21) is driven by the extension frame (14) to slide in the sliding groove (12) inside the traction bracket (9).
3. A traction device for internal PTFE-lined tubing as described in claim 1, characterized in that: The locking screw groove (11) is sleeved on the outside of the fixing screw (21) and contacts the sliding groove (12) inside the traction bracket (9). The fixing tube (10) is placed at the top between the fixing block (20) and the extension frame (14) inside the traction bracket (9).
4. A traction device for internal PTFE-lined tubing as described in claim 1, characterized in that: A guide wheel (6) is installed on the top left side of the traction bracket (9), a guide rod (5) is installed on the top left side of the traction bracket (9), a mechanical mounting frame (4) is installed on the left side of the traction bracket (9), a winding motor (1) is installed on the top of the mechanical mounting frame (4), a linkage seat (2) is installed at the rear end of the winding motor (1), and a support crossbar (13) is connected to the front end of the mechanical mounting frame (4).
5. A traction device for PTFE-lined tubing according to claim 4, characterized in that: The rear end of the linkage seat (2) is provided with a traction winding frame (3), the traction winding frame (3) is provided with a traction steel cable (7), a connecting seat (16) is installed on one side of the traction steel cable (7), a movable fixing buckle (17) is installed on one side of the connecting seat (16), a connecting hook (8) is provided inside the movable fixing buckle (17), a limiting seat (19) is connected to one side of the connecting hook (8), and a limiting sleeve (18) is provided outside the limiting seat (19).
6. A traction device for internal PTFE-lined tubing according to claim 5, characterized in that: The movable fixing buckle (17) is connected to the traction steel cable (7) through the connecting seat (16). The winding motor (1) drives the traction winding frame (3) and the traction steel cable (7) outside the traction winding frame (3) to wind through the linkage seat body (2). The limiting seat (19) is connected to the movable fixing buckle (17) through the connecting hook (8). The limiting sleeve (18) is sleeved on the outside of the limiting seat (19) through the connecting hook (8).
7. A traction device for internal PTFE-lined tubing according to claim 1, characterized in that: A support rod (22) is installed on the right side of the extension frame (14). A guide wheel (15) is sleeved on the outside of the support rod (22). An extension rod (24) is inserted into the front and rear ends of the support rod (22). A snap fastener (23) is provided at the front and rear ends of the right side of the extension frame (14).
8. A traction device for internal PTFE-lined tubing according to claim 7, characterized in that: The support rod (22) drives the guide wheel (15) to rotate on the right side of the extension frame (14). The extension rod (24) rotates at the front and rear ends of the support rod (22) and engages with the snap fasteners (23) at the front and rear ends of the extension frame (14). The guide wheel (15) is fixed to one side of the extension frame (14) by the support rod (22).