A sewer defect disease positioning device
By adopting a dual-drive wheel and adjustment mechanism design in the drainage pipeline inspection equipment, the problem of adapting to pipelines with different inner diameters is solved, the equipment can operate stably in the pipeline and the accuracy of the inspection results can be achieved, thus improving the inspection efficiency and defect identification rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU CHENGAN PIPE NETWORK TECHNOLOGY CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-08-04
AI Technical Summary
Existing municipal water supply and drainage pipeline testing equipment lacks a flexible and effective adjustment mechanism when dealing with pipelines of different inner diameters, resulting in limited testing efficiency and inaccurate test results.
A defect location device for drainage pipes was designed. It adopts a stable four-wheel drive system with dual drive wheels and dual driven wheels. Combined with an adjustment mechanism, it can adjust the distance between the driven wheels in real time to adapt to drainage pipes of different specifications. It is also equipped with symmetrically distributed lighting devices to provide uniform illumination and ensure that the detector can accurately collect data.
This enables the equipment to operate stably in pipes of different diameters, reduces manual intervention, improves detection efficiency and defect identification rate, and ensures the accuracy of detection results.
Smart Images

Figure CN224594501U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of urban infrastructure inspection and maintenance technology, and in particular to a device for locating defects and malfunctions in drainage pipes. Background Technology
[0002] The field of urban infrastructure inspection and maintenance is crucial to the normal operation of cities and the quality of life of residents. As an important infrastructure, drainage pipes are subject to long-term corrosion from sewage and external pressure, making them prone to defects such as cracks, blockages, and misalignments. Drainage pipe defect location equipment, with the help of technologies such as camera monitoring and sonar detection, can accurately detect the internal condition of pipes without large-scale excavation, quickly locate the location and type of defects, and, with the help of intelligent analysis software, assess the severity of the defects. Therefore, there is a particular need for drainage pipe defect location equipment.
[0003] Chinese Patent CN210257887U, published on April 7, 2020, discloses an amphibious detection device for municipal water supply and drainage pipeline defects. This device utilizes a second motor to drive the detector probe to rotate, scanning the pipeline and using ultrasonic signals to obtain the coordinates of any point on the pipeline relative to the sonar, thus acquiring the pipeline profile at the cross-sectional location and detecting defects. However, in practical applications, due to the diverse and significant differences in the inner diameters of municipal water supply and drainage pipelines, this device lacks a flexible and effective adjustment mechanism when facing pipelines of different inner diameters. This makes it difficult to adapt to various pipe diameter environments, limiting its ability to operate within pipelines and hindering its detection efficiency, thus affecting the smooth progress of the detection work and the accuracy of the results. Utility Model Content
[0004] The purpose of this invention is to provide a device for locating defects and malfunctions in drainage pipes, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a drainage pipe defect location device, comprising a driving device, a driving wheel rotatably connected to one side surface of the driving device, a base frame fixedly connected to one side surface of the driving device, a connecting piece fixedly connected to one side surface of the base frame, an adjustment mechanism provided on the upper surface of the base frame, a top plate provided on the upper surface of the adjustment mechanism, a lighting device fixedly connected to the upper surface of the top plate, and a detector fixedly connected to the upper surface of the top plate;
[0006] The adjustment mechanism includes a bracket, which is fixedly connected to one side surface of the base frame. A motor is fixedly connected to the upper surface of the bracket. A rotating component is rotatably connected to one side surface of the motor. A connecting rod is rotatably connected to one side surface of the rotating component. A moving component is rotatably connected to one side surface of the connecting rod. A guide rod is penetratingly connected to one side surface of the moving component. A movable block is rotatably connected to one side surface of the movable block. A hub shaft is fixedly connected to one side surface of the hub shaft. A rotating shaft is rotatably connected to one side surface of the hub shaft. A driven wheel is fixedly connected to the outer wall surface of the rotating shaft. A support beam is rotatably connected to one side surface of the hub shaft.
[0007] Furthermore, the drive wheels are provided with two of the same size, and the driven wheels are provided with two of the same size. The outer wall dimensions of the two drive wheels match the outer wall dimensions of the two driven wheels, and the distance between the two drive wheels is smaller than the distance between the two driven wheels.
[0008] Furthermore, the guide rods are provided in two identical sizes and are arranged in parallel, and the guide rods are fixedly connected to the inner wall surface of the bracket.
[0009] Furthermore, the connecting rod is provided in two identical sizes, the connecting rod, the rotating component and the motor are distributed in parallel, and the lighting device is provided in two identical sizes, and is symmetrically distributed along the surface of the top plate away from the support.
[0010] Furthermore, the movable component has two of the same size and is symmetrically distributed along the center point of the guide rod, and the movable component is parallel to the support beam.
[0011] Furthermore, the hub axle has two of the same size and is symmetrically distributed along the center point of the support beam, and the support beam is fixedly connected to one side surface of the connector.
[0012] Furthermore, the vertical centerline of the movable block is parallel to the vertical centerline of the hub shaft, and the central axis of the rotating shaft coincides with the central axis of the driven wheel.
[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: This drainage pipe defect location device, through the setting of the adjustment mechanism, can adjust the distance between driven wheels in real time according to the inner diameter of the pipe, eliminating the need for frequent manual replacement of equipment parts or adjustment of parameters. While adapting to drainage pipes of different specifications, it reduces the procurement cost of detection equipment and manpower investment. The dual drive wheels and dual driven wheels form a stable four-wheel drive system. Its size matching and spacing difference design allow the device to operate smoothly even at pipe bends and slope changes, ensuring accurate and reliable data collection by the detector. The symmetrically distributed lighting device provides uniform and high-intensity illumination, eliminating blind spots in pipe lighting. Combined with the high-definition image acquisition and intelligent analysis of the detector, it can clearly capture hidden defects such as minute cracks and micro holes, improving the defect identification rate. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a side view of the structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the top panel of this utility model after disassembly;
[0017] Figure 4 This is a partial disassembled structural diagram of the adjustment mechanism of this utility model;
[0018] Figure 5 This is a schematic diagram of part of the adjustment mechanism of this utility model.
[0019] In the diagram: 1. Drive unit; 2. Drive wheel; 3. Base frame; 4. Connecting part; 5. Adjustment mechanism; 501. Bracket; 502. Motor; 503. Rotating part; 504. Connecting rod; 505. Moving part; 506. Guide rod; 507. Movable block; 508. Hub shaft; 509. Rotating shaft; 510. Driven wheel; 511. Support beam; 6. Top plate; 7. Lighting device; 8. Detector. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-5This utility model provides a technical solution: a drainage pipe defect location device, including a drive device 1, a drive wheel 2 rotatably connected to one side surface of the drive device 1, a base frame 3 fixedly connected to one side surface of the drive device 1, a connector 4 fixedly connected to one side surface of the base frame 3, an adjustment mechanism 5 provided on the upper surface of the base frame 3, a top plate 6 provided on the upper surface of the adjustment mechanism 5, a lighting device 7 fixedly connected to the upper surface of the top plate 6, and a detector 8 fixedly connected to the upper surface of the top plate 6.
[0022] The adjustment mechanism 5 includes a bracket 501, which is fixedly connected to one side surface of the base frame 3. A motor 502 is fixedly connected to the upper surface of the bracket 501. A rotating component 503 is rotatably connected to one side surface of the motor 502. A connecting rod 504 is rotatably connected to one side surface of the rotating component 503. A moving component 505 is rotatably connected to one side surface of the connecting rod 504. A guide rod 506 is penetratingly connected to one side surface of the moving component 505. A movable block 507 is rotatably connected to one side surface of the moving component 505. A hub shaft 508 is fixedly connected to one side surface of the movable block 507. A rotating shaft 509 is rotatably connected to one side surface of hub shaft 508. A driven wheel 510 is fixedly connected to the outer wall surface of rotating shaft 509. A support beam 511 is rotatably connected to one side surface of hub shaft 508. Through the arrangement of bracket 501, motor 502, rotating component 503, connecting rod 504, moving component 505, guide rod 506, movable block 507, hub shaft 508, rotating shaft 509, driven wheel 510, and support beam 511, when the position of driven wheel 510 needs to be adjusted during use, motor 502 above bracket 501 is started, and motor 502 drives rotating component 503 to start rotating. The rotational motion of rotating component 503 is transmitted through connecting rod 504, causing moving component 505 to bear force. Since the moving part 505 is connected to the guide rod 506, which restricts and guides its movement direction, the moving part 505 can only move smoothly along the direction of the guide rod 506. The moving part 505 is also rotatably connected to the movable block 507. When the moving part 505 moves, it will drive the movable block 507 to move. The movable block 507 is fixedly connected to the hub shaft 508, which causes the hub shaft 508 to change position. The change in position of the hub shaft 508 drives the rotating shaft 509 and the driven wheel 510 to make corresponding position or angle adjustments. At the same time, the support beam 511 always restricts the center point of the two hub shafts 508 until the driven wheel 510 is tightly attached to the inner wall of the pipe, completing the pipe diameter adaptation. This greatly enhances the adaptability of the equipment to drainage pipes of different diameters, eliminates the need for frequent manual intervention or replacement of parts, and significantly improves the efficiency of the inspection work.
[0023] Furthermore, the drive wheels 2 are provided with two of the same size, and the driven wheels 510 are provided with two of the same size. The outer wall dimensions of the two drive wheels 2 match the outer wall dimensions of the two driven wheels 510. The distance between the two drive wheels 2 is smaller than the distance between the two driven wheels 510. With the arrangement of the drive wheels 2 and the driven wheels 510, when the drive device 1 is started during use, the internal power system drives the two drive wheels 2 to rotate synchronously. The friction with the inner wall of the pipe generates a forward driving force, which pushes the driven wheels 510 forward. The stable four-wheel support structure enhances the equipment's anti-overturning ability in the pipe. Even if there is water accumulation, foreign object accumulation or other complex conditions inside the pipe, it can maintain balance and prevent the equipment from tipping over or shifting.
[0024] Furthermore, two guide rods 506 of the same size are provided and are arranged in parallel. The guide rods 506 are fixedly connected to the inner wall surface of the bracket 501. Through the arrangement of the guide rods 506, when in use, the motor 502 drives the rotating part 503 to rotate. The rotating part 503 transmits force through the connecting rod 504, causing the moving part 505 to be subjected to force. At this time, the two parallel guide rods 506, which are fixed to the inner wall of the bracket 501, play a role. They penetrate the moving part 505 and provide it with precise motion trajectory constraints, so that the moving part 505 can only move in a straight line along the axial direction of the guide rods 506 and cannot deviate or rotate, thus ensuring the stable operation of the mechanism.
[0025] In addition, two connecting rods 504 of the same size are provided. The connecting rods 504, rotating parts 503 and motors 502 are distributed in parallel. Two lighting devices 7 of the same size are provided and are symmetrically distributed along the surface of the top plate 6 away from the bracket 501. With the setting of connecting rods 504, when in use, motors 502 drive rotating parts 503 to rotate. Connecting rods 504 use the hinge points at both ends as fulcrums to convert the circular motion of rotating parts 503 into linear motion of moving parts 505 along the direction of guide rods 506. The two connecting rods 504 of the same size ensure the smooth operation of the mechanism.
[0026] In addition, two movable components 505 of the same size are provided and symmetrically distributed along the center point of the guide rod 506. The movable components 505 are parallel to the support beam 511. Through the arrangement of the movable components 505, during use, the linear movement of the movable components 505 drives the movable block 507 to move, thereby causing the hub shaft 508 to change position, ultimately realizing the adjustment of the spacing and angle of the driven wheels 510. In this process, the symmetrically distributed movable components 505 ensure that the force on both sides is balanced, ensuring a smooth and precise adjustment process, and allowing the driven wheels 510 to closely fit the inner wall of pipes with different inner diameters.
[0027] It is worth noting that there are two hub shafts 508 of the same size, which are symmetrically distributed along the center point of the support beam 511. The support beam 511 is fixedly connected to one side surface of the connector 4. With the support beam 511, the position change of the hub shaft 508 during use drives the rotating shaft 509 and the driven wheel 510 to make corresponding position or angle adjustments. At the same time, the support beam 511 always restricts the center point of the two hub shafts 508, effectively dispersing the impact force generated when the driven wheel 510 contacts the inner wall of the pipe.
[0028] It is worth noting that the vertical center axis of the movable block 507 is parallel to the vertical center axis of the hub shaft 508, and the central axis of the rotating shaft 509 coincides with the central axis of the driven wheel 510. Through the arrangement of the rotating shaft 509 and the driven wheel 510, during use, the drive wheel 2 provides forward power under the drive of the drive device 1, and the driven wheel 510 adapts to different pipe diameters under the action of the adjustment mechanism 5. In this process, the rotating shaft 509, as the core rotating component of the driven wheel 510, has its central axis coincide with the central axis of the driven wheel 510, ensuring that the driven wheel 510 can rotate stably and evenly around the rotating shaft 509.
[0029] Working Principle: When the drainage pipe defect location equipment is put into use, the drive unit 1 starts first. Its internal power system drives the drive wheel 2, which is rotatably connected to it, to start rotating. The two parallel drive wheels 2 contact the inner wall of the pipe, and rely on friction to propel the entire equipment smoothly forward in the drainage pipe. During the movement, if it encounters pipes with different inner diameters, the adjustment mechanism 5 plays a key role. The motor 502 on the support 501 starts to operate after receiving the control signal. The motor 502 drives the rotating part 503 to rotate. The rotation of the rotating part 503 transmits force through the connecting rod 504, so that the moving part 505 moves along the guide rod 506 under the restriction and guidance of the guide rod 506. The moving part 505 moves horizontally to the rod 506. Since the moving part 505 is rotatably connected to the movable block 507, and the movable block 507 is fixedly connected to the hub shaft 508, the movement of the moving part 505 will cause the hub shaft 508, the rotating shaft 509 and the driven wheel 510 to change position, thereby changing the tilt angle between the driven wheels 510, so that the driven wheels 510 can closely fit the inner wall of the pipe with different inner diameters, ensuring that the equipment can move stably in pipes of various diameters. At the same time, the lighting device 7 located above the top plate 6 continues to work. The two symmetrically distributed lighting devices 7 emit bright and uniform light, illuminating the inside of the pipe and providing good lighting conditions for the inspection work. Under sufficient light, the detector 8 performs a detailed inspection of the inner wall of the pipe. Through image acquisition and data analysis, it accurately identifies various defects and malfunctions in the pipe, such as cracks, blockages, and deformations. The detection data is then transmitted to the external control system in real time. The motor 502 is model YE2-132S-4. This completes the process of using a drainage pipe defect location device.
[0030] 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 drainage pipe defect location device, comprising a drive device (1), characterized in that: A drive wheel (2) is rotatably connected to one side surface of the drive device (1), a base frame (3) is fixedly connected to one side surface of the drive device (1), a connector (4) is fixedly connected to one side surface of the base frame (3), an adjustment mechanism (5) is provided on the upper surface of the base frame (3), a top plate (6) is provided on the upper surface of the adjustment mechanism (5), a lighting device (7) is fixedly connected to the upper surface of the top plate (6), and a detector (8) is fixedly connected to the upper surface of the top plate (6). The adjusting mechanism (5) includes a bracket (501), which is fixedly connected to one side surface of the base frame (3). A motor (502) is fixedly connected to the upper surface of the bracket (501). A rotating component (503) is rotatably connected to one side surface of the motor (502). A connecting rod (504) is rotatably connected to one side surface of the rotating component (503). A moving component (505) is rotatably connected to one side surface of the connecting rod (504). A guide rod (506) is connected through one side surface of the movable part (505). A movable block (507) is rotatably connected to one side surface of the movable part (505). A hub shaft (508) is fixedly connected to one side surface of the movable block (507). A rotating shaft (509) is rotatably connected to one side surface of the hub shaft (508). A driven wheel (510) is fixedly connected to the outer wall surface of the rotating shaft (509). A support beam (511) is rotatably connected to one side surface of the hub shaft (508).
2. The drainage pipe defect location device according to claim 1, characterized in that: The drive wheel (2) has two of the same size, and the driven wheel (510) has two of the same size. The outer wall size of the two drive wheels (2) matches the outer wall size of the two driven wheels (510), and the distance between the two drive wheels (2) is smaller than the distance between the two driven wheels (510).
3. The drainage pipe defect location device according to claim 1, characterized in that: The guide rod (506) has two of the same size and is arranged in parallel. The guide rod (506) is fixedly connected to the inner wall surface of the bracket (501).
4. The drainage pipeline defect location device according to claim 1, characterized in that: Two connecting rods (504) of the same size are provided. The connecting rods (504), rotating parts (503) and motors (502) are distributed in parallel. Two lighting devices (7) of the same size are provided and are symmetrically distributed along the surface of the top plate (6) away from the bracket (501).
5. The drainage pipeline defect location device according to claim 1, characterized in that: Two movable components (505) of the same size are provided and are symmetrically distributed along the center point of the guide rod (506). The movable components (505) and the support beam (511) are distributed in parallel.
6. The drainage pipeline defect location device according to claim 1, characterized in that: Two hub shafts (508) of the same size are provided and are symmetrically distributed along the center point of the support beam (511). The support beam (511) is fixedly connected to one side surface of the connector (4).
7. The drainage pipe defect location device according to claim 1, characterized in that: The vertical centerline of the movable block (507) is parallel to the vertical centerline of the hub shaft (508), and the central axis of the rotating shaft (509) coincides with the central axis of the driven wheel (510).