A drainage pipeline detection device

Abstract

This utility model discloses a drainage pipeline detection device, belonging to the field of detection devices. It addresses the problem that current main pipelines without inspection manholes but connected by rain grates, where CCTV robots cannot enter the pipeline through the rain grates, makes it difficult to efficiently determine the specific location of the main pipeline and manholes. The device uses a wire threader to send a wire into the main pipeline through the rain grate connection pipe. The wire carries the detection component into the pipeline simultaneously, allowing the detection component to enter long sections without inspection manholes. The image signal collected by the detection component is transmitted to the control component via the wire, conductive ring, and conveyor line, enabling real-time monitoring and control. Illumination is distributed around the camera lens, and the camera is connected to the beginning of the wire. This design ensures clear image information acquisition inside dark and complex pipelines, and the ring illumination eliminates shadows around the lens, improving image quality.

Description

Technical Field

[0001] This utility model relates to the field of detection devices, and in particular to a drainage pipeline detection device. Background Technology

[0002] Many drainage pipelines are covered by permanent ground structures such as superstructures, roads, and green belts, making existing drainage inspection wells unidentifiable and creating "hidden wells." Furthermore, some drainage systems suffer from problems such as excessively large spacing between inspection wells, missing drawing information, and non-standard connections of ancillary facilities due to historical planning or renovation oversights, hindering routine maintenance and emergency repair capabilities. In some real-world scenarios, although pipeline sections lack inspection wells, they often have ancillary connection facilities such as storm drain grates. The connection location and direction between these storm drain grates and branch pipes and the main pipeline are unclear, easily becoming blind spots. Using storm drain grates as a starting point, accurately determining the connection location between the storm drain grates and branch pipes and the main pipeline can help locate hidden wells. Common methods for detecting hidden wells include ground-penetrating radar (GPR) and tracing methods. GPR requires grid-based detection with a survey line spacing of ≤0.5m, resulting in dense survey lines and low detection efficiency. More seriously, in the complex urban environment, the densely distributed metal pipelines for power and communication can generate strong electromagnetic interference, causing a 40%-60% decrease in the effective signal-to-noise ratio. In special scenarios such as green belts, the dense root system of vegetation forms a natural electromagnetic shielding layer, and the fluctuations in dielectric constant caused by changes in soil moisture content further reduce the detection depth. Therefore, this method has limited adaptability in such environments.

[0003] The tracing method involves inserting a tracing device (transmitting a probe) into the drainage pipe and then using a receiver on the ground to track the tracing signal to determine the location of the pipe and manhole. This method typically uses a pipe crawler (CCTV inspection robot) equipped with the tracing device for detection. This method relies on existing manhole openings as the work entry point, and the distance between two manholes should not be too long. CCTV cannot crawl through long sections of pipe without manholes or completely enclosed manholes, which greatly reduces its applicability in the field of pipe and manhole location detection. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a drainage pipeline detection device. The wire threader can send a wire into the main pipeline through the rain grate connecting pipe. The wire carries the detection component into the pipeline at the same time, thus enabling the detection component to enter long-distance sections without inspection manholes. The image signal collected by the detection component is transmitted to the control component through the wire, conductive ring, and conveyor line to realize real-time monitoring and control.

[0005] To achieve the above objectives, the following technical solution is adopted: A drainage pipeline detection device, comprising: A wire threader includes a frame and a wheel frame rotatably mounted on the frame via an axle. A wire is wound on the wheel frame, and the end of the wire is provided with an end docking terminal to pass through the axle and connect to a conductive ring. The detection components include a camera, a light source, and a probe. The light source is arranged in a ring around the lens of the camera. The camera and the probe are respectively connected to the beginning of the wire. The control assembly includes a housing, a controller, and a display screen. The housing has an internal storage cavity to accommodate the disassembled camera, lighting, and probe. The display screen and controller are mounted on the housing. The controller is connected to the display screen and connected to a conductive ring via a conveyor line. The camera is connected to the controller via wires, the conductive ring, and the conveyor line to transmit signals.

[0006] Furthermore, the axle has a cylindrical structure with both ends rotatably mounted on the frame. A conductive ring is installed at one end of the axle, and the end end is connected to the conductive ring by passing through the side wall of the axle into the axle.

[0007] Furthermore, a fixing buckle is installed at one end of the wire connected to the camera. The fixing buckle is used to cooperate with the wheel frame to fix one end of the wire to the wheel frame.

[0008] Furthermore, an auxiliary buckle is also installed on the wire on one side of the fixing buckle. The auxiliary buckle can be detachably connected to the probe, which is an electromagnetic probe. The electromagnetic probe can be detachably connected to the wire.

[0009] Furthermore, the camera is detachably connected to the wire, and the lighting lamp is detachably connected to the camera.

[0010] Furthermore, the enclosure is equipped with a cover, and the display is mounted on the cover.

[0011] Furthermore, the conductor contains a copper-core conductive tracer wire.

[0012] Compared with the prior art, the beneficial effects of this utility model are: To address the problem of inefficiently determining the exact location of main pipelines and manholes in long stretches without inspection wells but with access via rain grates, where CCTV robots cannot enter through the rain grates, a wiring device can be installed. This device connects to the rain grates via a pipe, allowing a wire to be inserted into the main pipeline. The wire carries a detection component into the pipeline simultaneously, enabling the detection component to enter long sections without inspection wells. The image signals collected by the detection component are transmitted to the control component via wires, conductive rings, and a conveyor line, achieving real-time monitoring and control. Illumination is distributed around the camera lens, with the camera connected to the beginning of the wire. This design ensures clear image acquisition even in dark and complex pipeline interiors, and the ring illumination eliminates shadows around the lens, improving image quality.

[0013] The control assembly includes a housing with a storage cavity, a controller, and a display screen. The controller and display screen are mounted on the housing. The controller is connected to a conductive ring via a conveyor line, and then forms a signal transmission link with the camera via wires. The housing can also store the disassembled detection components. Its function is to control the detection components, receive and display signals, and provide a portable storage and operating medium. It is easy to carry and store, and the integrated controller and display screen enable real-time control and monitoring, improving operational efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the threader in an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the control component in an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the detection component in an embodiment of the present invention.

[0017] Figure 4 This is an exploded view of the detection component in an embodiment of this utility model.

[0018] Labeling descriptions (in order of first appearance): 1. Frame; 2. Wheel frame; 3. Wire; 4. End docking section; 5. Conductive ring; 6. Conveyor line; 7. Camera; 8. Axle; 9. Controller; 10. Display screen; 11. Lighting lamp; 12. Fixing buckle; 13. Auxiliary buckle; 14. Electromagnetic probe. Detailed Implementation

[0019] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0020] In this embodiment, as Figures 1-4 As shown, this invention addresses the problem of inefficiently determining the specific locations of main pipelines and manholes in situations where long main pipelines lack inspection manholes but have access via storm drains, and CCTV robots cannot enter the pipeline through these drains. This invention provides a drainage pipeline detection device that does not rely on existing inspection manholes, overcoming the detection limitations in the aforementioned scenarios.

[0021] The structure of the drainage pipeline detection device mainly consists of three parts: a wire threader, a detection component, and a control component.

[0022] like Figure 1As shown, the cable threader includes a frame 1 and a wheel frame 2 that rotates via a wheel axle 8. A wire 3 is wound on the wheel frame 2, and the end of the wire 3 is provided with an end joint for connecting to a conductive ring 5. The wire 3 wound on the wheel frame 2 can send the camera 7 and the probe into the drainage pipe. After the camera 7 enters the drainage pipe, the acquired image signal can be transmitted through the wire 3. At the same time, the wire 3 also serves to supply power to the camera 7.

[0023] The detection assembly consists of a camera 7 and a ring illumination lamp 11. The illumination lamp 11 is distributed around the lens of the camera 7, and the camera 7 is connected to the first end of the wire 3. This design ensures clear image information can be acquired inside the pipe, copes with dark and obstructed scenes, and the ring illumination can eliminate shadows around the lens and improve image quality.

[0024] The control assembly includes a housing with a storage cavity, a controller 9, and a display screen 10. The controller 9 and the display screen 10 are mounted on the housing. The controller 9 is connected to the conductive ring 5 via a conveyor line 6, and then forms a signal transmission link with the camera 7 via a wire 3. At the same time, the housing can store the disassembled detection assembly, realize the control of the detection assembly, signal reception and display, and provide a portable storage and operation medium.

[0025] The conductor 3 is sent into the pipeline, and the conductor 3 carries the detection component into the pipeline at the same time, so that the detection component can enter a long-distance section without wells or a closed dark well. The image signal collected by the detection component is transmitted to the control component through the conductor 3, the conductive ring 5, and the conveyor line 6 to realize real-time monitoring and control.

[0026] Without relying on existing manholes, the detection components can be inserted into long-distance manhole-free pipeline sections or completely enclosed dark manholes via a cable threader, enabling effective detection in scenarios inaccessible by traditional technologies and significantly improving the applicability of the device in pipeline and dark manhole location detection. The design of the ring light 11 surrounding the camera 7 reduces the impact of the dark environment inside the pipeline on imaging, ensuring clear image acquisition and providing a reliable basis for pipeline condition assessment. The control component housing can store the disassembled detection components, facilitating portability and storage. The controller 9 and display screen 10 are integrated into the housing, enabling real-time control and monitoring, and improving operational efficiency.

[0027] like Figure 1 As shown, the axle 8 is a cylindrical structure, with both ends rotatably mounted on the frame 1. A conductive ring 5 is installed at one end of the axle 8, and the end end is fed into the axle 8 from the side wall and connected to the conductive ring 5. The cylindrical axle 8 provides an internal channel for the wire 3, preventing the wire 3 from rubbing or tangling with the outside environment during the rotation of the wheel frame 2, and ensuring the structural integrity of the wire 3 during long-distance pushing and traction. The built-in connection between the conductive ring 5 and the end of the wire 3 enables stable conductivity and signal transmission between the wire 3 and the control component conveyor line 6. Even if the wheel axle 8 rotates, the circuit remains unobstructed, ensuring signal transmission in long-distance pipelines.

[0028] The end of the wire 3 connected to the camera 7 is equipped with a fixing buckle 12. The fixing buckle 12 is used to cooperate with the wheel frame 2 to fix one end of the wire 3 to the wheel frame 2. When not in use, the wire 3 can be fixed to the wheel frame 2 by the fixing buckle 12 to prevent the end of the wire 3 from falling off.

[0029] like Figure 3 and Figure 4 As shown, an auxiliary buckle 13 is also installed on the wire 3 on one side of the fixing buckle 12. The auxiliary buckle 13 can be detachably connected to the probe, which uses an electromagnetic probe 14. The electromagnetic probe 14 can be detachably connected to the wire 3. This expands the detection function. Based on the visual detection of the camera 7, the electromagnetic probe 14 is used to trace and locate the pipeline position. This is especially useful in complex pipeline structures, such as multi-branched, obstacle-filled dark wells, where the combination of visual and electromagnetic signals improves detection accuracy. The detachable design allows for flexible selection of whether to equip the electromagnetic probe 14 according to the needs of the scenario, avoiding unnecessary load and adapting to different pipeline environments. For example, in simple scenarios, only the camera 7 is used, while in complex scenarios, the electromagnetic probe 14 is added.

[0030] The camera 7 and wire 3 are detachable, as are the light 11 and camera 7. This allows for easy disassembly of components at narrow entrances without manholes, allowing them to be inserted into pipes and reassembled, reducing the difficulty of entering enclosed dark wells or small entrances. Individual components can be replaced independently when damaged, reducing maintenance costs. They are also easy to store, and the enclosure for the control components enhances the portability and durability of the device.

[0031] The enclosure has a lid on which the monitor is mounted. The lid protects the monitor from external impacts and dust, especially in outdoor or complex working environments; the monitor can be operated by opening the lid, and it is easy to carry when closed, enhancing the practicality of the control components.

[0032] The conductor 3 is equipped with a copper core conductive tracer wire. The copper core wire ensures stable conductivity, improves signal transmission efficiency, and avoids signal attenuation during long-distance transmission. At the same time, it can also serve as a tracer medium to help determine the direction of the conductor 3 in the pipeline and coordinate with the position positioning of the detection component. Especially in long-distance pipeline sections without manholes, it enhances the device's ability to sense its own position.

[0033] During operation, the operator connects the detection components (camera 7 and illumination lamp 11) to the first end of the wire 3, ensuring that the ring illumination lamp 11 is distributed around the lens of the camera 7 to provide sufficient illumination. If enhanced positioning is required, the electromagnetic probe 14 is installed on the wire 3 on one side of the fixing buckle 12 via the auxiliary buckle 13, and the electromagnetic probe 14 is connected to the wire 3. At the same time, the end of the wire 3 of the threader is passed through the cylindrical structure of the wheel axle 8 and connected to the conductive ring 5, ensuring that the copper core conductive tracer wire inside the wire 3 can conduct signals through the conductive ring 5. In the control component, the controller 9 and the display screen 10 are mounted on the housing. The controller 9 is connected to the conductive ring 5 via the conveyor line 6, forming a signal transmission link from the camera 7 to the controller 9. The wire 3, conductive ring 5, conveyor line 6, and controller 9 complete the assembly and connection of the device.

[0034] Using a storm drain grate or other accessible opening as the work entrance, the operator releases the wound wire 3 via the wheel frame 2 of the wire threader, sending the detection component at the head of the wire 3 into the drainage pipe. The frame 1 of the wire threader works in conjunction with the axle 8, and the rotation of the wheel frame 2 pushes the wire 3 forward. The flexibility of the wire 3 allows the detection component to adapt to the bends or narrow spaces of the pipe, gradually penetrating long sections of pipe without manholes or completely enclosed underground manholes.

[0035] After the detection component enters the pipeline, the illumination lamp 11 and camera 7 are activated: the ring illumination lamp 11 provides uniform illumination for the camera 7, eliminating imaging shadows caused by the dark environment inside the pipeline; the camera 7 acquires images of the inside of the pipeline in real time, such as the pipeline structure, joints, sediments, etc., and transmits the image signals to the conductive ring 5 via the wire 3, and then to the controller 9 of the control component via the conveyor line 6. After processing the signal, the controller 9 displays the image on the display screen 10, allowing ground operators to observe the inside of the pipeline in real time.

[0036] Meanwhile, the copper core conductive tracer inside the conductor 3 can help track the movement trajectory and direction of the detection component; if the electromagnetic probe 14 is installed, the ground detection equipment can receive the signal emitted by it to further accurately locate the position of the detection component in the pipeline and determine whether it is close to the well or branch pipe interface.

[0037] Ground operators observe the internal images of the pipeline through the display screen 10, and combine this with the positioning signals fed back by the copper-core conductive tracer or electromagnetic probe 14 to comprehensively determine the pipeline structure, branch pipe direction, and possible location of the manhole where the detection component is located. If it is necessary to adjust the detection direction, the detection component can be moved inside the pipeline by retracting the guide wire 3 through the wheel frame 2 to continue deeper detection.

[0038] After the detection is completed, the wire 3 is retrieved via the wheel frame 2, and the detection component is pulled out of the pipe. The camera 7 and the lighting lamp 11 are disassembled. If an electromagnetic probe 14 is installed, it is also disassembled and placed in the storage cavity of the control component box. The controller 9 and the display screen 10 are turned off to complete the operation.

[0039] The specific embodiments of the utility model have been described in detail above, but they are only examples, and the utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions to the utility model are also within the scope of the utility model. Therefore, all equivalent transformations, modifications, and improvements made without departing from the spirit and principles of the utility model should be covered within the scope of the utility model.

Claims

1. A drain line probing device, comprising: The utility model relates to a wire threading device, which comprises a frame, a wheel frame rotatably mounted on the frame via an axle, a wire wound on the wheel frame, and a terminal butt joint provided at an end of the wire to connect a conductive ring via the axle. The wire threading device further comprises a detection assembly, which comprises a camera, a ring-shaped illuminating lamp surrounding a lens of the camera, and a probe rod. The wire threading device further comprises a control assembly, which comprises a box, a controller, and a display screen. The box has a storage cavity to accommodate the camera, the illuminating lamp, and the probe rod.

2. The drain line explorer of claim 1, wherein, The controller is connected to the display screen and connected to the conductive ring via a transmission line.

3. A drain line explorer as claimed in claim 1 or 2, wherein, The axle has a cylindrical structure and is rotatably mounted on the frame at both ends.

4. The drain line explorer of claim 3, wherein, The conductive ring is mounted on one end of the axle.

5. The drain line explorer of claim 1, wherein, The terminal butt joint is transmitted into the axle from a side wall of the axle and connected to the conductive ring.

6. The drain line explorer of claim 1, wherein, A fixing buckle is mounted on one end of the camera to fix the wire on the wheel frame.

7. The drain line explorer of claim 1, wherein, An auxiliary buckle is mounted on the wire on one side of the fixing buckle. The auxiliary buckle is detachably connected to the probe rod. The probe rod is an electromagnetic probe and is detachably connected to the wire. The camera is detachably connected to the wire. The illuminating lamp is detachably connected to the camera. The box has a box cover, and the display screen is mounted on the box cover. The wire has a copper core conductive tracer wire.

Images