Welding repair device for municipal water supply pipeline
By designing an arc-shaped scraper and stirring rod structure that adapts to different pipe diameters, combined with a welding repair device that uses a water pump to deliver repair fluid, the problem of existing devices being unable to flexibly repair pipes of different locations and diameters has been solved, achieving efficient and convenient pipe repair results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-04-03
AI Technical Summary
Existing municipal water supply pipeline welding and repair equipment cannot flexibly repair different locations and pipe diameters, and the repair range is small, resulting in low repair efficiency.
A welding repair device was designed, comprising a movable frame, a rotating column, an arc-shaped scraper, a stirring rod, and a water pump. The arc-shaped scraper cleans and repairs the inner wall of the pipe, the connecting rod is adjustable to accommodate different pipe diameters, the stirring rod prevents the repair fluid from settling, and the water pump delivers the repair fluid for sealing.
It improved the quality of repairs, expanded the applicability of the device, prevented detachment after repair, simplified the operation process, and improved repair efficiency.
Smart Images

Figure CN224073731U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding repair technology, specifically a welding repair device for municipal water supply pipelines. Background Technology
[0002] Municipal water supply pipeline welding repair equipment is a specialized device used to repair and restore the function of damaged or aging water supply pipelines. Due to the high levels of corrosive gases in drainage pipes, coupled with improper operation and maintenance, concrete pipes and channels often suffer from severe corrosion and leakage. This not only affects the normal drainage function of the pipes and channels but also easily leads to accidents such as ground subsidence. The main methods for solving defects such as corrosion and leakage in pipes and channels include excavation and pipe replacement or pipe spraying repair.
[0003] Current pipeline welding repair devices are inconvenient to repair different parts of the pipeline in actual operation, resulting in low pipeline repair efficiency. They can only repair fixed pipe diameters at the same time, and the repair range is small. Therefore, we propose a welding repair device for municipal water supply pipelines. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0005] This utility model discloses a welding repair device for municipal water supply pipelines, comprising a movable frame, a rotating column rotatably connected to one side of the movable frame, a fixed block fixedly connected to one side of the rotating column, a ball screw rotatably connected to one side of the fixed block, a fixed column at one end of the ball screw, a connecting pipe fixedly connected to one side of the fixed column, a movable frame rotatably connected to one side of the connecting pipe, and a storage box movably connected to one side of the movable frame via a rotating rod.
[0006] As a preferred technical solution of this utility model, a drive motor is fixedly installed inside the rotating column. The output end of the drive motor passes through the fixed block and is connected to the ball screw drive. Several connecting rods are rotatably connected to the outer periphery of the fixed block. One end of each connecting rod is rotatably connected to an arc-shaped scraper. A discharge pipe is fixedly connected to the outer periphery of each arc-shaped scraper.
[0007] As a preferred embodiment of this utility model, the outer circumference of the ball screw is threaded with a threaded column, and the outer circumference of the threaded column is rotatably connected with a plurality of connecting rods two, and one end of the connecting rod two is rotatably connected to the interior of the arc-shaped scraper. The outer circumference of the fixed column is rotatably connected with a plurality of connecting rods three, and one end of the connecting rod three is rotatably connected to the interior of the arc-shaped scraper.
[0008] As a preferred technical solution of this utility model, a power motor is fixedly installed on one side of the mobile frame, and a small gear is driven and connected to the output end of the power motor. A large gear is fixedly welded to the outer periphery of one end of the rotating column, and one side of the outer periphery of the large gear meshes with the outer periphery of the small gear.
[0009] As a preferred embodiment of this utility model, a micro motor is fixedly installed on one side of the storage box, and the output end of the micro motor is connected to a rotating shaft through the micro motor drive. Several stirring rods are fixedly welded to the outer circumference of the rotating shaft.
[0010] As a preferred embodiment of this utility model, a water pump is fixedly installed on the top of the storage box, and the output end of the water pump is connected to a telescopic hose. One end of the telescopic hose passes through the movable frame and is connected to a connecting pipe.
[0011] As a preferred embodiment of this utility model, a plurality of conveying pipes are fixedly connected to the outer periphery of the connecting pipe, and one end of the conveying pipe is connected to the discharge pipe.
[0012] The beneficial effects of this utility model are:
[0013] 1. This welding repair device for municipal water supply pipelines, by setting up an arc-shaped scraper, can scrape and clean the inner wall of the pipeline by rotating the arc-shaped scraper, thereby improving the repair quality and preventing the repair from falling off again.
[0014] 2. This welding repair device for municipal water supply pipelines, by setting up connecting rod three, and through the cooperation of connecting rod three, connecting rod two and connecting rod one, allows the arc-shaped scraper to be adjusted, enabling internal repair of pipes of different diameters and expanding the applicability of the device;
[0015] 3. This welding repair device for municipal water supply pipelines, by setting a stirring rod, can agitate the repair fluid inside the storage tank to prevent the repair fluid from settling and separating, thus preventing a decline in repair quality. This utility model has a simple and reasonable structure, novel design, and is easy and convenient to operate, and has high practical value. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a perspective view of a welding repair device for municipal water supply pipelines according to this utility model;
[0018] Figure 2 This is a schematic diagram of the discharge pipe structure of a welding repair device for municipal water supply pipelines according to this utility model;
[0019] Figure 3 This is a schematic diagram of the large gear structure of a welding repair device for municipal water supply pipelines according to this utility model;
[0020] Figure 4 This is a schematic diagram of the stirring rod structure of a welding repair device for municipal water supply pipelines according to this utility model;
[0021] Figure 5 This is a schematic diagram of the conveying pipe structure of a welding repair device for municipal water supply pipelines according to this utility model.
[0022] In the diagram: 1. Moving frame; 101. Power motor; 102. Small gear; 2. Rotating column; 201. Drive motor; 202. Large gear; 3. Fixed block; 301. Connecting rod one; 302. Arc-shaped scraper; 303. Discharge pipe; 4. Ball screw; 401. Threaded column; 402. Connecting rod two; 5. Fixed column; 501. Connecting rod three; 6. Connecting pipe; 601. Conveying pipe; 7. Movable frame; 8. Rotating rod; 9. Storage box; 901. Micro motor; 902. Rotating shaft; 903. Stirring rod; 904. Water pump; 905. Telescopic hose. Detailed Implementation
[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0024] Example: Figures 1-5 As shown, this utility model discloses a welding repair device for municipal water supply pipelines, including a movable frame 1. A rotating column 2 is rotatably connected to one side of the movable frame 1. A fixing block 3 is fixedly connected to one side of the rotating column 2. A ball screw 4 is rotatably connected to one side of the fixing block 3. A fixing column 5 is provided at one end of the ball screw 4. A connecting pipe 6 is fixedly connected to one side of the fixing column 5. A movable frame 7 is rotatably connected to one side of the connecting pipe 6. A storage box 9 is movably connected to one side of the movable frame 7 via a rotating rod 8.
[0025] The rotating column 2 is equipped with a drive motor 201. The output end of the drive motor 201 passes through the fixed block 3 and is connected to the ball screw 4. Several connecting rods 301 are rotatably connected to the outer periphery of the fixed block 3. One end of the connecting rod 301 is rotatably connected to an arc-shaped scraper 302. The outer periphery of the arc-shaped scraper 302 is fixedly connected to a discharge pipe 30. By setting the arc-shaped scraper 302, the inner wall of the pipe can be scraped and cleaned by the rotation of the arc-shaped scraper 302, thereby improving the repair quality and preventing the repair from falling off again.
[0026] Among them, the outer circumference of the ball screw 4 is threadedly connected to a threaded column 401, and the outer circumference of the threaded column 401 is rotatably connected to several connecting rods 402. One end of the connecting rods 402 is rotatably connected to the inside of the arc-shaped scraper 302. The outer circumference of the fixed column 5 is rotatably connected to several connecting rods 501. One end of the connecting rods 501 is rotatably connected to the inside of the arc-shaped scraper 302. By setting the connecting rods 501, the arc-shaped scraper 302 can be adjusted through the cooperation of the connecting rods 501, the connecting rods 402 and the connecting rods 301, thus enabling the repair of the inside of pipes with different diameters and improving the applicability of the device.
[0027] The mobile frame 1 is fixedly mounted on one side with a power motor 101. The output end of the power motor 101 is connected to a small gear 102. A large gear 202 is fixedly welded to the outer periphery of one end of the rotating column 2. One side of the outer periphery of the large gear 202 meshes with the outer periphery of the small gear 102. By setting the large gear 202, the cooperation between the large gear 202 and the small gear 102 drives the fixed block 3 and the connecting pipe 6 to rotate, so that the arc scraper 302 between the fixed block 3 and the connecting pipe 6 can rotate, which can scrape the inside of the pipe and repair it at the same time.
[0028] A micro motor 901 is fixedly installed on one side of the storage tank 9. The output end of the micro motor 901 is connected to a rotating shaft 902 through the micro motor 901. Several stirring rods 903 are fixedly welded to the outer periphery of the rotating shaft 902. By setting the stirring rods 903, the repair liquid inside the storage tank 9 can be stirred to prevent the repair liquid from settling and separating, which would result in a decrease in repair quality.
[0029] The top of the storage tank 9 is fixedly equipped with a water pump 904. The output end of the water pump 904 is connected to a telescopic hose 905. One end of the telescopic hose 905 passes through the movable frame 7 and is connected to the connecting pipe 6. By setting the water pump 904, the repair fluid inside the storage tank 9 can be actively transported.
[0030] Among them, several conveying pipes 601 are fixedly connected to the outer periphery of the connecting pipe 6, and one end of the conveying pipe 601 is connected to the discharge pipe 303. By setting the conveying pipe 601, the repair liquid can enter the interior of the discharge pipe 303 through the conveying pipe 601, and the arc-shaped scraper 302 is used to smooth the repair liquid and seal the gap, thereby improving the repair quality and preventing it from falling off again.
[0031] Working Principle: In use, the device is placed inside the pipe. The movable frame 1 and the movable frame 7 move the device within the pipe. Starting the drive motor 201 causes its output end to pass through the fixed block 3, driving the ball screw 4 to rotate. This, in turn, drives the threaded column 401 through a threaded connection, causing it to move. Through the cooperation of connecting rod 1 301, connecting rod 2 402, and connecting rod 3 501, the arc-shaped scraper 302 is moved closer to the inner wall of the pipe. The arc-shaped scraper 302 is adjustable, allowing for repairs on pipes of different diameters, thus expanding the device's applicability. Then, starting the power motor 101 causes its output end to drive the small gear 102 to rotate. This gear meshes with the large gear 202, causing the rotating column 2 to move further... The rotating mechanism drives the fixed block 3 and the connecting pipe 6 to rotate, causing the arc-shaped scraper 302 between the fixed block 3 and the connecting pipe 6 to rotate. This scrapes the inside of the pipe and performs repairs. Simultaneously, the micro motor 901 is activated. The output end of the micro motor 901 drives the rotating shaft 902 inside the storage tank 9 to rotate, causing the stirring rod 903 to stir the repair liquid inside the storage tank 9. This prevents the repair liquid from settling and separating, which would reduce the repair quality. The repair liquid inside the storage tank 9 is then transported to the inside of the connecting pipe 6 through the telescopic hose 905 via the water pump 904, and then to the inside of each discharge pipe 303 via the delivery pipe 601. The arc-shaped scraper 302 is used to smooth the repair liquid and seal the gaps, thereby improving the repair quality and preventing re-detachment.
[0032] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A device for welded repair of municipal water supply pipes, comprising a mobile frame (1), characterized in that, One side of the moving frame (1) is rotatably connected with a rotating column (2), one side of the rotating column (2) is fixedly connected with a fixed block (3), one side of the fixed block (3) is rotatably connected with a ball screw (4), one end of the ball screw (4) is provided with a fixed column (5), one side of the fixed column (5) is fixedly connected with a connecting pipe (6), one side of the connecting pipe (6) is rotatably connected with a movable frame (7), one side of the movable frame (7) is movably connected with a storage tank (9) through a rotating rod (8).
2. A device for welding repair of a municipal water pipe according to claim 1, characterized in that The inside of the rotating column (2) is fixedly installed with a driving motor (201), the output end of the driving motor (201) is in transmission connection with the ball screw (4) through the fixed block (3), the outer periphery of the fixed block (3) is rotatably connected with a plurality of connecting rods (301), one end of the connecting rod (301) is rotatably connected with an arc-shaped scraper (302), the outer periphery of the arc-shaped scraper (302) is fixedly connected with a discharge pipe (303).
3. A device for welding repair of a municipal water pipe according to claim 1, characterized in that The outer periphery of the ball screw (4) is threadedly connected with a threaded column (401), the outer periphery of the threaded column (401) is rotatably connected with a plurality of connecting rods (402), and one end of the connecting rod (402) is rotatably connected with the inside of the arc-shaped scraper (302), the outer periphery of the fixed column (5) is rotatably connected with a plurality of connecting rods (501), and one end of the connecting rod (501) is rotatably connected with the inside of the arc-shaped scraper (302).
4. A device for welding repair of a municipal water pipe according to claim 1, characterized in that One side of the moving frame (1) is fixedly installed with a power motor (101), the output end of the power motor (101) is in transmission connection with a pinion (102), one end of the rotating column (2) is fixedly welded with a large gear (202) on the outer periphery, and the outer periphery of the large gear (202) is meshingly connected with the outer periphery of the pinion (102).
5. A device for welding repair of a municipal water pipe according to claim 1, characterized in that One side of the storage tank (9) is fixedly installed with a micro motor (901), the output end of the micro motor (901) is in transmission connection with a rotating shaft (902) through the micro motor (901), the outer periphery of the rotating shaft (902) is fixedly welded with a plurality of stirring rods (903).
6. A device for welding repair of a municipal water pipe according to claim 1, characterized in that The top of the storage tank (9) is fixedly installed with a water pump (904), the output end of the water pump (904) is in communication connection with a flexible hose (905), one end of the flexible hose (905) is in communication with the connecting pipe (6) through the movable frame (7).
7. A device for welding repair of a municipal water pipe according to claim 2, characterized in that The outer periphery of the connecting pipe (6) is fixedly connected with a plurality of conveying pipes (601), and the conveying pipe (601) is in communication with one end of the discharge pipe (303).