Pipeline defect detection device

Abstract

The invention relates to the technical field of pipeline repair, in particular to a pipeline defect detection device, which adopts a support telescopic ring consisting of a rigid ring sheet, a support elastic piece, a reset elastic piece and a lateral stabilizing piece, has excellent deformability, can adapt to various shapes in a pipeline through the extension and retraction of the elastic piece, and can be used for detecting pipeline defects. The pipeline inspection device can smoothly pass through when the condition in the pipeline is complex, has excellent passing capacity, can adjust the diameter size according to the diameter size of the detected pipeline, can be applied to various types of municipal drainage pipelines, has good universality, can inspect the defects in the pipeline through the inspection system arranged on the support, and improves the inspection efficiency. And accurate detection of pipeline defects is realized.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline repair, and in particular to a pipeline defect detection device. Background Art

[0002] The drainage system is a vital part of urban infrastructure, responsible for collecting, transporting, treating and discharging urban sewage and rainwater. As the core engineering facility of urban environmental management, the drainage system undertakes the function of collecting and transporting sewage, and its operation status is directly related to the quality of life of residents and the production environment of the city. With the large-scale construction of drainage systems in various cities basically completed, the service life of pipelines has gradually increased, and drainage pipelines in many cities have begun to have various problems such as pipe wall corrosion, blockage, and leakage. These problems not only affect the normal operation of the drainage system, but also may cause serious environmental pollution and potential safety hazards. For example, pipeline leakage may cause groundwater pollution and affect drinking water safety, while pipeline blockage may cause waterlogging, seriously affecting urban traffic and residents' lives. Therefore, regular comprehensive inspection and maintenance of drainage pipelines has become a necessary measure in urban management. Through scientific detection methods and effective maintenance strategies, problems in the drainage system can be discovered and solved in a timely manner to ensure its efficient operation, thereby improving the overall environmental quality of the city and the living standards of residents.

[0003] Due to the particularity of the municipal drainage system, trenchless technology is currently used for pipeline maintenance and repair. Grouting, in-situ solidification, spraying, spraying, spiral winding, etc. are commonly used trenchless repair technologies. Construction personnel can choose appropriate repair technologies according to the damage of the pipeline, the material of the pipeline, the construction conditions, etc. It is very important to monitor the pipeline status before carrying out pipeline repair. Pipeline monitoring includes determining the damage of the pipeline, the location of the damage, the area of ​​the damage, the foreign matter, etc. Only when the pipeline status is clear can a targeted repair strategy be carried out. Pipeline detection technology is divided into traditional detection technology, periscope detection technology, sonar detection technology and pipeline video (Closed Circuit Television, CCTV) detection technology. CCTV detection technology is currently the most widely used pipeline detection equipment. As the pipeline condition becomes more and more complex, the scope of application of various detection equipment is getting smaller and smaller. Often, a problem section requires a comprehensive evaluation of multiple monitoring equipment, which greatly increases the difficulty of troubleshooting. Summary of the invention Based on the above description, the present invention provides a pipeline defect detection device to solve the above technical problems in the prior art.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: A pipeline defect detection device comprises a traveling support, a driving system and a viewing system; The walking bracket includes a connecting rod, a plurality of telescopic rings and a plurality of antenna connectors, wherein the plurality of telescopic rings are spaced apart along the axial direction of the connecting rod, the telescopic ring includes a rigid ring piece, a flexible cable, a supporting elastic member, a resetting elastic member and a lateral stabilizing member, the flexible cable strings the rigid ring piece and the supporting elastic member into a telescopic ring body, the ring body is arranged on the outside of the connecting rod, the resetting elastic member is arranged between the ring body and the connecting rod, and is used to prop up the ring body outward, the ring body and the resetting elastic member are located on the same plane, the lateral stabilizing member is arranged on both sides of the ring body, and is used to provide lateral support to the ring body; the antenna connector is arranged on the outside of the rigid ring piece; The driving system is arranged on the antenna assembly and is used to drive the walking bracket to move along the axial direction of the connecting rod; The inspection system is installed on the bracket and is used to inspect defects inside the pipeline.

[0005] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: The detection device provided in the present application adopts a supporting telescopic ring composed of a rigid ring piece, a supporting elastic member, a reset elastic member and a lateral stabilizing member. It has excellent deformation ability. Through the expansion and contraction of the elastic member, it can adapt to various shapes in the pipeline and can pass smoothly even when the situation in the pipeline is complicated. It has excellent passing ability and can adjust its own diameter size according to the diameter size of the pipeline to be inspected, so that it can be applied to various models of municipal drainage pipelines. It has good versatility and can inspect the defects inside the pipeline through the inspection system arranged on the bracket to achieve accurate detection of pipeline defects.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the rigid ring pieces and the supporting elastic members are arranged alternately.

[0008] Furthermore, the antenna connector is arranged close to the end of the rigid ring piece, and two antenna connectors are arranged on each rigid ring piece.

[0009] Furthermore, the driving system includes a driving motor and a running wheel, wherein the driving motor is arranged on the tentacle connector, and the running wheel rotates under the drive of the driving motor, and the axis of the running wheel is parallel to or coincides with the plane where the ring body is located.

[0010] Furthermore, the antenna connector includes an antenna bracket and a rotating shaft connected to the antenna bracket, the driving motor is a hollow shaft motor and is mounted on the rotating shaft, and the walking wheel is arranged on the outside of the driving motor.

[0011] Furthermore, the driving motor is provided with a stroke sensor.

[0012] Furthermore, at least part of the lateral stabilizing member is a lateral tension spring arranged on both sides of the ring body, one end of the lateral tension spring is arranged on the rigid ring sheet, and the other end is connected to the connecting rod.

[0013] Furthermore, at least part of the lateral stabilizing member is a triangular telescopic bracket, and the triangular telescopic support leg includes two lateral tension rods and one transverse tension rod, the two lateral tension rods are arranged on both sides of the ring body, the two ends of the lateral tension rod are respectively hinged to the connecting rod and the rigid ring plate, the two ends of the transverse tension rod are respectively connected to the two lateral tension rods and the connection is arranged close to the connecting rod, and the end of the transverse tension rod is hinged to the lateral tension rod.

[0014] Furthermore, the monitoring system includes a camera element, a force sensor and a transmission element. The camera element is arranged at the end of the connecting rod, the force sensor is arranged on the supporting elastic member, and is used to sense the change of the elastic force of the supporting elastic member. The transmission element is arranged on the connecting rod and is electrically connected to the camera element and the force sensor, and is used to transmit the information obtained by the camera element and the force sensor to the outside.

[0015] Furthermore, the imaging element is provided with a lighting unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a pipeline defect detection device provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the telescopic ring in the embodiment of the present application; Figure 3 This is a schematic diagram of the connection of the lateral tension spring in the embodiment of the present application; Figure 4 This is a schematic diagram of the connection of the triangular telescopic bracket in the embodiment of the present application; Figure 5 This is a schematic diagram of the usage status of an embodiment of the present application. DETAILED DESCRIPTION

[0017] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0019] It will be appreciated that spatial relationship terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as "on" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90° or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0020] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0021] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, connectors, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, connectors, parts or combinations thereof.

[0022] like Figure 1-3 As shown, an embodiment of the present application provides a pipeline defect detection device, which includes a walking support 10, a driving system 20 and a viewing system 30.

[0023] Among them, the walking bracket 10 includes a connecting rod 11, multiple telescopic rings 12 and multiple tentacle connectors 13. The multiple telescopic rings 12 are distributed at intervals along the axial direction of the connecting rod 11. The telescopic ring 12 includes a rigid ring piece 121, a flexible rope 122, a supporting elastic member 123, a reset elastic member 124 and a lateral stabilizing member 125.

[0024] The flexible rope 122 strings the rigid ring piece 121 and the supporting elastic member 123 into a retractable ring body 12a. The ring body 12a is arranged on the outside of the connecting rod 11. The reset elastic member 124 is arranged between the ring body 12a and the connecting rod 11, and is used to prop up the ring body 12a outward. The ring body 12a and the reset elastic member 124 are located on the same plane. The lateral stabilizing member 125 is arranged on both sides of the ring body 12a, and is used for lateral support of the ring body 12a. The antenna connector 13 is arranged on the outside of the rigid ring piece 121.

[0025] The ring body 12a is formed by connecting a rigid ring piece 121 and a supporting elastic member 123 in series through a flexible rope 122, and has extremely high instability. Therefore, through the setting of the lateral stabilizing member 125, the two sides of the ring body 12a are pulled to ensure its balance during operation. When the ring body 12a is deformed by external pressure, the supporting effect of the reset elastic member 124 and the pulling force of the supporting elastic member 123 enable the entire ring body 12a to continue to fit the shape of the inner wall of the pipe.

[0026] In a preferred embodiment of the present application, the rigid ring pieces 121 and the supporting elastic members 123 are arranged alternately, so that the ring body 12a can be retracted in regions at all circumferential positions, thereby ensuring the stability of the entire ring body 12a.

[0027] In a preferred embodiment of the present application, the supporting elastic member 123 and the resetting elastic member 124 are both springs. The length of the flexible rope 122 is adjusted according to the inner diameter of the detected pipe. By tightening or releasing the flexible rope 122, the diameter of the telescopic ring 12 is approximately 1.2 times the diameter of the detected pipe.

[0028] The driving system 20 is disposed on the antenna assembly 13 and is used to drive the traveling support 10 to move along the axial direction of the connecting rod 11 .

[0029] The driving system 20 includes a power supply 21, a driving motor 22 and a walking wheel 23. The driving motor 22 is arranged on the antenna connector 13. The walking wheel 23 rotates under the drive of the driving motor 22. The axis of the walking wheel 23 is parallel to or coincides with the plane where the ring body 12a is located. The power supply 21 is used to power the driving motor 22.

[0030] Preferably, a slot is provided on the outer edge of the driving motor 22, and the running wheel 23 is firmly connected to the driving motor 22 through the slot. The outer tire of the running wheel 23 has good friction, which increases the friction between the driving motor 22 and the inner wall of the pipeline. The driving motor 22 is controlled by the control system. In this embodiment, the antenna connector 13 is disposed close to the end of the rigid ring piece 121 , and two antenna connectors 13 are disposed on each rigid ring piece 121 .

[0031] Specifically, the antenna connector 13 includes an antenna bracket 131 and a rotating shaft 132 connected to the antenna bracket 131 . The driving motor 22 is a hollow shaft motor and is mounted on the rotating shaft 132 . The walking wheel 23 is arranged on the outside of the driving motor 22 .

[0032] The driving motor 22 is provided with a stroke sensor, and the stroke sensor determines the travel distance of the traveling bracket 10 by the number of rotations of the driving motor 22, thereby accurately determining the position of the traveling bracket 10, so as to accurately determine the defect position in the pipe.

[0033] In the embodiment of the present application, at least part of the lateral stabilizing member 125 of the telescopic ring 12 is a lateral tensioning spring 1251 arranged on both sides of the ring body, one end of the lateral tensioning spring 1251 is arranged on the rigid ring piece 121, and the other end is connected to the connecting rod 10.

[0034] The lateral tensioning spring 1251 is no longer parallel to the plane of the telescopic ring, but has a certain angle with the plane. Preferably, the lateral tensioning spring 1251 is connected to both ends of each rigid ring piece 121, so that its number is twice that of the rigid ring piece 121. The lateral tensioning spring 1251 is in a tensioned state, which can keep the ring body 12a perpendicular to the connecting rod 10. When the telescopic ring 12 encounters foreign matter or defects in the pipeline and is deformed and tilted, it can recover immediately.

[0035] In a preferred embodiment of the present application, part of the lateral tensioning spring 1251 is replaced by a triangular telescopic bracket 1252. The triangular telescopic bracket 1252 includes two lateral tension rods 1253 and a transverse tension rod 1254. The two lateral tension rods 1253 are arranged on both sides of the ring body 12a. The two ends of the lateral tension rod 1253 are respectively hinged to the connecting rod 10 and the rigid ring plate 121. The two ends of the transverse tension rod 1254 are respectively connected to the two lateral tension rods 1253 and the connection is arranged close to the connecting rod 10. The end of the transverse tension rod 1254 is hinged to the lateral tension rod 1253. The function of the triangular telescopic bracket 1252 is to make the plane of the telescopic ring 10 always perpendicular to the connecting rod 10, that is, the ring body can only be telescoped in a plane perpendicular to the rod body 10 without tilting, but the deformation of the telescopic ring 12 in the plane is not restricted.

[0036] The inspection system 30 is installed on the bracket 10 and is used to inspect the defects inside the pipeline. It is responsible for collecting the status information inside the pipeline when the device is moving.

[0037] The visiting system 30 includes a camera element 31, a force sensor 32 and a transmission element 33. The camera element 31 is arranged at the end of the connecting rod 10. The force sensor 32 is arranged on a part of the supporting elastic member 123 for sensing the change in the elastic force of the supporting elastic member 123. The transmission element 33 is arranged on the connecting rod 10 and is electrically connected to the camera element 31 and the force sensor 32 for transmitting the information obtained by the camera element 31 and the force sensor 32 to the outside. The camera element 31, the force sensor 32 and the transmission element 33 are all electrically connected to the power supply. The triangular telescopic bracket 1252 is arranged on the telescopic ring 12 provided with the force sensor 32.

[0038] The imaging element 31 is provided with a lighting unit.

[0039] Combination Figure 4 As shown, when the detection device 100 provided by the present application is used, first, the length of the flexible rope 122 is adjusted according to the inner diameter of the detected pipe, and the diameter of the telescopic ring 12 is 1.2 times the diameter of the detected pipe 200 by tightening or releasing the flexible rope 122; wherein the end of the bracket 10 equipped with the imaging element 31 is forward, and the entire device is inserted into the detected pipe 200, and the force sensor 32 and the mileage sensor are balanced; the operating device runs forward, and the length of the reset elastic member 124 is determined in real time by the force sensor 32, and the mileage is determined by the mileage sensor installed in the driving motor 22; when the telescopic ring 12 passes through the foreign body 201 in the pipe, the signals of the imaging element 31, the force sensor 32 and the mileage sensor are processed by the transmission unit 33 and converted into a three-dimensional structure diagram of the pipe, which clearly shows the basic size of the foreign body or the damaged part and the accurate position in the pipe 200.

[0040] The detection device provided in the present application adopts a supporting telescopic ring composed of a rigid ring piece, a supporting elastic member, a reset elastic member and a lateral stabilizing member. It has excellent deformation ability. Through the expansion and contraction of the elastic member, it can adapt to various shapes in the pipeline and can pass smoothly even when the situation in the pipeline is complicated. It has excellent passing ability and can adjust its own diameter size according to the diameter size of the pipeline to be inspected, so that it can be applied to various models of municipal drainage pipelines. It has good versatility and can inspect the defects inside the pipeline through the inspection system arranged on the bracket to achieve accurate detection of pipeline defects.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline defect detection device, characterized in that: Including walking frame, driving system and visiting system; The walking bracket includes a connecting rod, a plurality of telescopic rings and a plurality of antenna connectors, wherein the plurality of telescopic rings are spaced apart along the axial direction of the connecting rod, the telescopic ring includes a rigid ring piece, a flexible cable, a supporting elastic member, a resetting elastic member and a lateral stabilizing member, the flexible cable strings the rigid ring piece and the supporting elastic member into a telescopic ring body, the ring body is arranged on the outside of the connecting rod, the resetting elastic member is arranged between the ring body and the connecting rod, and is used to prop up the ring body outward, the ring body and the resetting elastic member are located on the same plane, the lateral stabilizing member is arranged on both sides of the ring body, and is used to provide lateral support to the ring body; the antenna connector is arranged on the outside of the rigid ring piece; The driving system is arranged on the antenna assembly and is used to drive the walking bracket to move along the axial direction of the connecting rod; The inspection system is installed on the bracket and is used to inspect defects inside the pipeline.

2. The pipeline defect detection device according to claim 1, characterized in that: The rigid ring pieces and the supporting elastic members are arranged alternately.

3. The pipeline defect detection device according to claim 2, characterized in that: The antenna connector is arranged close to the end of the rigid ring piece, and two antenna connectors are arranged on each rigid ring piece.

4. The pipeline defect detection device according to claim 1, characterized in that: The driving system includes a power supply, a driving motor and a running wheel. The driving motor is arranged on the tentacle connector. The running wheel rotates under the drive of the driving motor. The axis of the running wheel is parallel to or coincides with the plane where the ring body is located. The power supply is used to power the driving motor.

5. The pipeline defect detection device according to claim 4, characterized in that: The antenna connector includes an antenna bracket and a rotating shaft connected to the antenna bracket. The driving motor is a hollow shaft motor and is sleeved on the rotating shaft. The walking wheel is arranged on the outside of the driving motor.

6. The pipeline defect detection device according to claim 4, characterized in that: The driving motor is provided with a stroke sensor.

7. The pipeline defect detection device according to any one of claims 1 to 6, characterized in that: At least part of the lateral stabilizing member is a lateral tension spring arranged on both sides of the ring body, one end of the lateral tension spring is arranged on the rigid ring sheet, and the other end is connected to the connecting rod.

8. The pipeline defect detection device according to claim 7, characterized in that: At least part of the lateral stabilizing member is a triangular telescopic bracket, and the triangular telescopic support leg includes two lateral tension rods and a transverse tension rod. The two lateral tension rods are arranged on both sides of the ring body, and the two ends of the lateral tension rod are respectively hinged to the connecting rod and the rigid ring plate, and the two ends of the transverse tension rod are respectively connected to the two lateral tension rods and the connection is arranged close to the connecting rod, and the end of the transverse tension rod is hinged to the lateral tension rod.

9. The pipeline defect detection device according to claim 8, characterized in that: The visiting system includes a camera element, a force sensor and a transmission element. The camera element is arranged at the end of the connecting rod. The force sensor is arranged on a part of the supporting elastic member to sense the change of the elastic force of the supporting elastic member. The transmission element is arranged on the connecting rod and is electrically connected to the camera element and the force sensor to transmit the information obtained by the camera element and the force sensor to the outside. The camera element, the force sensor and the transmission element are all electrically connected to the power supply. The triangular telescopic bracket is arranged on a telescopic ring provided with a force sensor.

10. The pipeline defect detection device according to claim 1, characterized in that: The imaging element is provided with a lighting unit.

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