A device for locating the damage point of a drainage pipe

Abstract

This utility model discloses a drainage pipeline damage point location device, including a pipeline robot; a positioning medium connected to the pipeline robot; the pipeline robot and the positioning medium placed inside the pipeline; and a metal detector placed on the ground to detect the positioning medium. This damage point location device enables it to accurately locate the pipeline damage point on the ground directly above it by using electromagnetic induction technology, based on the location of the pipeline damage indicated by the endoscopic pipeline robot.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline inspection technology, specifically relating to a device for locating damage points in drainage pipelines. Background Technology

[0002] With the advancement of urban renewal projects, there are numerous urban pipeline renovation projects. The locations of leaks in storm and sewage pipelines detected by endoscopic pipework often differ between the drawings and the actual leak locations. Existing underground pipeline detectors are generally metal detectors, but since the vast majority of drainage pipelines are made of plastic or concrete, metal detectors cannot be used to accurately locate leaks on the ground. Utility Model Content

[0003] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A device for locating the damage point of a drainage pipe, comprising: Pipeline robots; The positioning medium is connected to the pipeline robot; The pipeline robot and positioning medium are placed inside the pipeline; A metal detector, placed on the ground, is used to detect the positioning medium.

[0004] Furthermore, the positioning medium is a copper disk.

[0005] Furthermore, the diameter of the copper disk is L, where 20cm ≤ L ≤ 35cm.

[0006] Furthermore, the positioning medium is a metal wire coil.

[0007] Furthermore, the metal coil is a steel wire coil.

[0008] Furthermore, the pipeline robot is equipped with a telephoto camera and a millimeter-wave radar to acquire environmental information within the pipeline.

[0009] Compared with the prior art, this utility model has the following advantages: This technical solution's damage point location device enables it to accurately locate the damaged point on the ground directly above it using electromagnetic induction technology, based on the location of the pipe damage indicated by the underground drainage pipeline inspection robot.

[0010] This invention combines a metal detector and a pipeline robot in the pipeline inspection process. By using signal transmission and reception technology, it enables the precise positioning of the pipeline robot, thereby improving the accuracy of pipeline damage detection and making it suitable for further promotion and application. Attached Figure Description

[0011] Figure 1This is a schematic diagram illustrating the overall structure of a specific embodiment of the present utility model; The reference numerals in the accompanying drawings include: Pipeline robot 1, positioning medium 2, metal detector 3, transmitter 4. Detailed Implementation

[0012] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0013] The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual physical objects. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals in the drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" appear, indicating the orientation or positional relationship based on the orientation or positional relationship shown in the 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, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0014] This utility model provides a drainage pipe damage point location device, which includes a pipe robot 1, a positioning medium 2, and a metal detector 3. The positioning medium 2 is connected to the pipeline robot 1; Pipeline robot 1 and positioning medium 2 are placed inside the pipeline; Metal detector 3 is placed on the ground to detect positioning medium 2.

[0015] This technical solution's damage point location device enables it to accurately locate the damaged point on the ground directly above it using electromagnetic induction technology, based on the location of the pipe damage indicated by the underground drainage pipeline inspection robot 1.

[0016] This invention combines the collaboration of a metal detector 3 and a pipeline robot 1 during pipeline inspection. By using signal transmission and reception technology, the pipeline robot 1 can be accurately positioned, improving the accuracy of pipeline damage detection and making it suitable for further promotion and application.

[0017] The aforementioned pipelines are underground drainage pipelines (non-metallic pipes) buried at a depth of less than 3 meters.

[0018] When in use, the downhole workers go down into the well and put the pipeline robot 1 into the inspection wellhead. The positioning medium 2, such as a copper disc, is connected to the pipeline robot 1, and the pipeline robot 1 carries the copper disc forward in the pipeline.

[0019] The pipeline robot 1 is controlled to probe the target pipeline. The pipeline robot 1 is equipped with a telephoto camera and millimeter-wave radar to obtain environmental information in the pipeline. The pipeline robot 1 transmits the environmental information in the pipeline to the control terminal on the ground through wireless communication technology and displays it on the screen. The pipeline robot 1 stops at the damaged location, which is the damaged point.

[0020] Using the detection signal from the metal detector 3, the location is marked on the ground. After positioning on the ground, the location of the pipeline damage point is checked against the robot's movement and displacement. If the error is small, it is the confirmed point.

[0021] It should be noted that since there are many D400 (40cm diameter) pipe diameters for sewage pipes, this method can solve the problem of locating the damage point of drainage pipes within a burial depth of 3 meters. However, if the burial depth exceeds 3 meters, the cross-section of the copper plate is too large to be inserted into the pipe, resulting in a significant error.

[0022] In this embodiment, the diameter of the copper disk is L, where 20cm ≤ L ≤ 35cm.

[0023] like Figure 1 As shown, the positioning medium 2 can also be a metal wire reel (such as the wire reel of an electric hoist). The material is chosen to be both conductive and corrosion-resistant. One end of the metal wire reel is fixed to the well site by an insulator, and the other end is pulled by the pipeline robot 1. The robot is controlled to probe the target pipeline / line and stop at the damaged location. It is important to note that the metal coil must be kept taut. The metal coil should be made of steel wire. Clamp one end of the steel wire with the current-emitting clamp of the metal detector 3. Open the transmitter 4 on the ground and use the receiver of the metal detector 3 to detect the electromagnetic signal on the ground until the signal disappears or weakens significantly. This is the location of the damage to the drainage pipe (plastic pipe or concrete pipe). After ground positioning, the location of the damaged point is checked against the robot's movement and displacement. If the error is small, it is considered the fixed point.

[0024] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A sewer pipe break location device, characterized by, The utility model relates to a pipeline robot, a positioning medium connected with the pipeline robot, the pipeline robot and the positioning medium are arranged in a pipeline, and a metal detector is arranged on the ground to detect the positioning medium. The positioning medium is a copper disc. The diameter of the copper disc is L, and 20cm<=L<=35cm. The positioning medium is a metal wire coil. The metal wire coil is a steel wire coil.

2. A sewer break location apparatus as claimed in claim 1, characterised in that: The pipeline robot is provided with a long-focus camera and a millimeter wave radar to obtain environmental information in the pipeline.

3. A sewer break location apparatus as claimed in claim 2, wherein: ​ 4. A sewer break location apparatus as defined in claim 1, wherein: ​ 5. A sewer break location apparatus as claimed in claim 4, wherein: ​ 6. A sewer break location apparatus as claimed in any one of claims 1 to 5, wherein: ​

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