Corrosion protection lining replacement lifting device for municipal water supply pipes

By using a threaded rod and a fixing ring structure, the installation difficulties of the anti-corrosion lining replacement device for municipal water supply pipelines have been solved, enabling rapid, stable, and sealed lining replacement, thus improving replacement efficiency and the overall performance of the device.

CN224533868UActive Publication Date: 2026-07-21DEZHOU ZHANQUAN WATER SUPPLY ENGINEERING DESIGN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEZHOU ZHANQUAN WATER SUPPLY ENGINEERING DESIGN CO LTD
Filing Date
2025-08-06
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing municipal water supply pipeline anti-corrosion lining replacement device lacks a positioning device during installation, which makes installation difficult and affects work efficiency. In addition, the traditional replacement method has a serious impact on urban traffic and residents' lives, and the replacement efficiency is low.

Method used

The use of threaded rods and retaining rings ensures a precise fit between the corrosion-resistant lining and the inner wall of the pipe. The stability and sealing of the device are enhanced by snap-fit ​​and threaded connections, enabling rapid installation and replacement of the lining.

Benefits of technology

It enables rapid installation and replacement of the lining, improves the stability and sealing of the device, reduces water flow impact and media infiltration, and reduces the impact on urban traffic and residents' lives.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to pipeline lining technical field, and disclose municipal water supply pipeline's anticorrosive lining replacement promotion device, including anticorrosive lining, the right end surface of anticorrosive lining is equipped with the connecting ring fixedly, the right end surface of connecting ring is equipped with the connecting frame fixedly, the left end surface of connecting frame is equipped with fixed ring no. Two fixedly, the inside of fixed ring no. Two is equipped with threaded rod and runs through, the utility model discloses a threaded rod, makes the lining and the pipeline connect, when installing, can according to the actual inner diameter of pipeline flexible adjustment lining's position, avoid the problem of water flow impact, medium infiltration because of the clearance between lining and pipeline too big, fundamentally promote the protection sealing property of anticorrosive lining, through connecting ring, connecting frame, fixed ring no. Two, the dismounting and replacement of lining are convenient and more convenient.
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Description

Technical Field

[0001] This utility model belongs to the field of pipeline lining technology, specifically a replacement and upgrading device for the anti-corrosion lining of municipal water supply pipelines. Background Technology

[0002] Municipal water supply pipelines are a crucial component of urban infrastructure, responsible for delivering clean water to urban residents and industrial production. However, with increasing usage time, the pipeline interior is susceptible to corrosion due to factors such as water quality and soil conditions. This not only reduces the pipeline's lifespan but can also lead to water pollution, impacting residents' health and hindering normal industrial operations. Currently, there are numerous problems in the replacement of corrosion-resistant linings for municipal water supply pipelines. Traditional replacement methods often require large-scale excavation, severely impacting urban traffic and residents' lives, and consuming significant manpower, resources, and time. Furthermore, existing lining replacement devices lack precision and efficiency, failing to meet the demands of modern urban pipeline maintenance. Therefore, developing an efficient, precise, and convenient device for replacing corrosion-resistant linings in municipal water supply pipelines is of significant practical importance.

[0003] Meanwhile, a pressure forming device for anti-corrosion pipe lining, with announcement number CN115742121B, is disclosed. It mainly relates to the field of pipe lining technology and includes a frame. The two ends of the frame are fixedly installed with platen frames. Two sets of telescopic frames are symmetrically slidably installed on the top platen frame. Each set of telescopic frames is equipped with a telescopic forming column. Feed pipes are provided on both sides of the two sets of forming columns. Two sets of clamping components are symmetrically arranged on the bottom platen frame. A cross is rotatably installed on the frame. Each of the four ends of the cross is equipped with a forming shell of different diameter.

[0004] The aforementioned anti-corrosion pipe lining pressure molding device, during use and installation, makes the lining installation very difficult due to the lack of positioning devices, thus affecting work efficiency.

[0005] Therefore, a replacement and upgrading device for the anti-corrosion lining of municipal water supply pipelines is proposed to address the above-mentioned problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a replacement and lifting device for the anti-corrosion lining of municipal water supply pipelines, which has the advantage of rapid installation and replacement of the lining.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a replacement and lifting device for the anti-corrosion lining of municipal water supply pipelines, including an anti-corrosion lining, a connecting ring fixedly provided on the right end face of the anti-corrosion lining, a connecting frame fixedly provided on the right end face of the connecting ring, a fixing ring two fixedly provided on the left end face of the connecting frame, and a threaded rod penetrating through the interior of the fixing ring two. Through the threaded rod, the degree of fit between the anti-corrosion lining and the inner wall of the pipeline can be precisely controlled.

[0008] Preferably, a buckle is fixedly provided on the left end face of the second fixing ring, a rotating shaft is fixedly provided on the outer side of the connecting ring, and a threaded tube is fixedly provided on the outer side of the rotating shaft.

[0009] By adopting the above technical solution, the connection between the fixing ring and other components can be further strengthened through the snap-fit, preventing loosening or displacement during device operation and improving the overall stability and reliability of the device.

[0010] Preferably, a limiting plate is fixedly provided inside the anti-corrosion liner, and a fixing ring is spirally provided on the outer side of the threaded rod, with the fixing ring one and the fixing ring two fitting together.

[0011] By adopting the above technical solution, the limiting plate can limit the fluid or other components inside the anti-corrosion lining, preventing excessive displacement or shaking in the pipeline, and ensuring the normal operation and safety of the device.

[0012] Preferably, the first fixing ring has a threaded hole inside and a slot inside.

[0013] By adopting the above technical solution, the threaded hole makes it possible to connect the fixing ring to other components via threads, increasing the flexibility and versatility of the device connection.

[0014] Preferably, the pipe body is fixedly provided on the inner side of the fixing ring, and the pipe body is slidably disposed with the anti-corrosion lining, and a limiting groove is provided inside the pipe body.

[0015] By adopting the above technical solution, the replacement of the anti-corrosion lining is made more convenient and quick through the pipe body and the anti-corrosion lining.

[0016] Preferably, the pipe body is provided with a second threaded hole inside, and the second threaded hole is spirally arranged with the threaded pipe.

[0017] By adopting the above technical solution, through the threaded hole and threaded pipe, it is possible to effectively prevent loosening or leakage during the operation of the device, thereby improving the sealing performance and reliability of the device.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a threaded rod to connect the liner and the pipe. During installation, the position of the liner can be flexibly adjusted according to the actual inner diameter of the pipe, avoiding water flow impact and media seepage caused by excessive gap between the liner and the pipe. This fundamentally improves the protective sealing performance of the anti-corrosion liner. The connecting ring, connecting bracket and fixing ring make it easier to disassemble and replace the liner. 2. This utility model uses a threaded tube to facilitate fine-tuning during the installation and replacement of the anti-corrosion liner, so as to adapt to different working environments and requirements. Through the first fixing ring, the second fixing ring, and the threaded rod, the two fixing rings can be tightly connected, which further enhances the structural strength of the device, and also facilitates disassembly and replacement when needed. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the threaded rod of this utility model; Figure 3 This is a schematic diagram of the installation structure of the anti-corrosion lining of this utility model; Figure 4 This is a schematic diagram of the installation structure of the fixing ring of this utility model.

[0020] In the diagram: 1. Pipe body; 2. Fixing ring one; 3. Fixing ring two; 4. Threaded rod; 5. Connecting bracket; 6. Slot; 7. Threaded hole one; 8. Limiting groove; 9. Threaded hole two; 10. Corrosion-resistant lining; 11. Limiting plate; 12. Buckle; 13. Threaded pipe; 14. Rotating shaft; 15. Connecting ring. Detailed Implementation

[0021] 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.

[0022] The following describes an embodiment of this utility model based on its overall structure.

[0023] like Figures 1 to 4As shown, this utility model provides a replacement and lifting device for the anti-corrosion lining of municipal water supply pipelines, including an anti-corrosion lining 10. A connecting ring 15 is fixedly provided on the right end face of the anti-corrosion lining 10, and a connecting frame 5 is fixedly provided on the right end face of the connecting ring 15. A fixing ring 2 3 is fixedly provided on the left end face of the connecting frame 5. A threaded rod 4 is passed through the inside of the fixing ring 2 3. The lining and the pipeline are connected through the threaded rod 4. During installation, the position of the lining can be flexibly adjusted according to the actual inner diameter of the pipeline, avoiding water flow impact and media seepage problems caused by excessive gap between the lining and the pipeline. This fundamentally improves the protective sealing performance of the anti-corrosion lining. The connecting ring 15, connecting frame 5, and fixing ring 2 3 make the disassembly and replacement of the lining more convenient.

[0024] In this embodiment, a buckle 12 is fixedly provided on the left end face of the second fixing ring 3, and a rotating shaft 14 is fixedly provided on the outside of the connecting ring 15. A threaded tube 13 is fixedly provided on the outside of the rotating shaft 14. The buckle 12 can further strengthen the connection between the second fixing ring 3 and other components, prevent loosening or displacement during the operation of the device, and improve the overall stability and reliability of the device.

[0025] The anti-corrosion lining 10 is fixedly provided with a limiting plate 11, and the threaded rod 4 is provided with a fixing ring 2 on the outside. The fixing ring 2 and the fixing ring 3 are fitted together. The limiting plate 11 can limit the fluid or other components in the anti-corrosion lining 10, prevent them from being excessively displaced or shaking in the pipeline, and ensure the normal operation and safety of the device.

[0026] The fixed ring 2 has a threaded hole 7 inside and a slot 6 inside. The threaded hole 7 makes it possible for the fixed ring 2 to be connected to other components by threads, increasing the flexibility and versatility of the device connection.

[0027] The pipe body 1 is fixedly installed on the inner side of the fixing ring 2, and the pipe body 1 and the anti-corrosion liner 10 are slidably arranged. The pipe body 1 has a limiting groove 8 inside. Through the pipe body 1 and the anti-corrosion liner 10, it is more convenient and quick to replace the anti-corrosion liner.

[0028] The pipe body 1 is internally fixed with a threaded hole 2 9, and the threaded hole 2 9 is spirally connected to the threaded pipe 13. Through the threaded hole 2 9 and the threaded pipe 13, it is possible to effectively prevent loosening or leakage during the operation of the device, thereby improving the sealing and reliability of the device.

[0029] Working principle and process of the anti-corrosion lining replacement and lifting device for municipal water supply pipelines: Inspect all components of the device to ensure that the anti-corrosion liner 10, connecting ring 15, connecting bracket 5, fixing ring 2 3, threaded rod 4, etc., are undamaged. Rotate the threaded rod 4 counterclockwise. Because the fixing ring 2 has a threaded hole 7 inside, the threaded rod 4 engages with the threaded hole 7, causing the fixing ring 2 to move away from the fixing ring 2 3 along the threaded rod 4 until they separate. Since the anti-corrosion liner 10 has a limit plate 11 and the pipe body 1 has a limit groove 8, after the fixing ring 2 and fixing ring 2 3 separate, slowly pull out the old anti-corrosion liner 10 along the axial direction of the pipe body 1 to avoid scratching the pipe body 1. Align one end of the new anti-corrosion liner 10 with the port of the pipe body 1 and insert it to ensure smooth sliding with the pipe body 1. Move the limiting plate 11 to correspond with the limiting groove 8, put the fixing ring 12 on the threaded rod 4 so that it fits with the fixing ring 23, rotate the threaded rod 4 clockwise so that the fixing ring 12 gets closer to the fixing ring 23 until it fits tightly. The buckle 12 on the fixing ring 23 is inserted into the buckle groove 6 of the fixing ring 12 to enhance the connection stability. Rotate the threaded tube 13 on the outer shaft 14 of the connecting ring 15 so that it is spirally connected to the threaded hole 29 in the pipe body 1 to fix the connecting ring 15 and the pipe body 1. After installation, check whether the connection of each component is firm and whether the anti-corrosion lining 10 is installed in the correct position to ensure that the device works normally and plays the role of the anti-corrosion lining replacement and lifting device for municipal water supply pipelines.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] 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 replacement and lifting device for the anti-corrosion lining of municipal water supply pipelines, comprising an anti-corrosion lining (10), characterized in that: A connecting ring (15) is fixedly provided on the right end face of the anti-corrosion lining (10), a connecting frame (5) is fixedly provided on the right end face of the connecting ring (15), a fixing ring II (3) is fixedly provided on the left end face of the connecting frame (5), and a threaded rod (4) is provided through the interior of the fixing ring II (3).

2. The anti-corrosion lining replacement and lifting device for municipal water supply pipelines according to claim 1, characterized in that: The left end face of the fixed ring (3) is fixedly provided with a buckle (12), the outer side of the connecting ring (15) is fixedly provided with a rotating shaft (14), and the outer side of the rotating shaft (14) is fixedly provided with a threaded tube (13).

3. The anti-corrosion lining replacement and lifting device for municipal water supply pipelines according to claim 1, characterized in that: The anti-corrosion lining (10) is fixedly provided with a limiting plate (11), and the outer side of the threaded rod (4) is provided with a fixing ring one (2), and the fixing ring one (2) and the fixing ring two (3) are fitted together.

4. The anti-corrosion lining replacement and lifting device for municipal water supply pipelines according to claim 3, characterized in that: The fixed ring 1 (2) has a threaded hole 1 (7) inside and a slot 6 inside.

5. The anti-corrosion lining replacement and lifting device for municipal water supply pipelines according to claim 3, characterized in that: The pipe body (1) is fixedly provided on the inner side of the fixed ring (2), and the pipe body (1) is slidably disposed with the anti-corrosion lining (10). A limiting groove (8) is opened inside the pipe body (1).

6. The anti-corrosion lining replacement and lifting device for municipal water supply pipelines according to claim 5, characterized in that: The pipe body (1) is provided with a threaded hole 2 (9) inside, and the threaded hole 2 (9) is spirally arranged with the threaded pipe (13).