A scanning frame for sewer inspection

Abstract

The utility model relates to pipeline detection technical field and disclose a kind of drainage pipeline detection is scanned with frame, including positioning disc, the outer wall of positioning disc is connected with multiple sleeves by pivot, the inner wall of sleeve is slidably connected with adjusting rod, push rod is provided in positioning disc, and one end of push rod is threadedly connected with mounting clamp, and the other end of push rod is threadedly connected with extension rod.The drainage pipeline detection is scanned with frame, and the cooperation setting of positioning disc, sleeve and adjusting rod, adjusting rod can slide along the inner wall of sleeve, the inner wall profile of the pipe diameter pipeline of adaptation is different, compensates pipe diameter difference simultaneously, so that scanning frame can be stably adapted to different nominal diameter drainage pipeline, without being separately customized special scanning frame for different specifications pipeline, substantially reduce the equipment investment cost of detection operation, improve the versatility of equipment, and sleeve is connected with positioning disc by pivot, can be directly folded and stored after use Sleeve and adjusting rod can be stored.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection technology, specifically a scanning frame for inspecting drainage pipelines. Background Technology

[0002] As a crucial component of urban infrastructure, drainage pipes directly impact urban flood control, water quality, and residents' daily lives. With increasing age, drainage pipes are prone to corrosion, damage, blockages, and leaks at joints. Failure to detect and repair these issues promptly can lead to road subsidence, water pollution, and poor drainage, among other safety hazards and environmental problems. Therefore, regular, comprehensive, and accurate inspections of drainage pipes are essential for ensuring the stable operation of urban drainage systems.

[0003] In drainage pipeline inspection operations, the scanning rack is one of the core auxiliary equipment. Its main function is to support detection elements such as cameras and sensors, ensuring that the detection elements move stably inside the pipeline and scan along a preset trajectory, thereby obtaining complete status information of the pipeline's inner wall. However, the existing scanning racks have poor structural adaptability. Due to the diverse nominal diameter specifications of urban drainage pipelines and the significant differences in pipe diameters between different regions and for different purposes, traditional scanning racks are mostly designed with fixed sizes, which can only adapt to pipes of a single or a few diameters. Furthermore, the existing scanning racks have obvious deficiencies in terms of storage and detection coverage. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a scanning frame for drainage pipe inspection, which solves the problems of poor structural adaptability, high equipment cost, and insufficient inspection efficiency and stability in the prior art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a scanning frame for inspecting drainage pipes, including a positioning plate, the outer wall of the positioning plate is connected to multiple sleeves via a rotating shaft, the inner wall of the sleeves is slidably connected to an adjusting rod, a push rod is provided inside the positioning plate, one end of the push rod is threadedly connected to an installation clamp, and the other end of the push rod is threadedly connected to an extension rod.

[0008] Optionally, a compression spring is fixedly installed on the inner bottom wall of the sleeve, the other end of the compression spring is fixedly connected to one end of the adjusting rod, and a roller is fixedly installed on the other end of the adjusting rod.

[0009] Optionally, a limiting ring is threaded onto one side of the outer surface of the positioning disk, and the outer wall of the limiting ring abuts against the outer wall of the sleeve.

[0010] Optionally, a bearing may be detachably installed on the inner wall of the positioning disk, and the inner ring of the bearing may be sleeved on the outer wall of the push rod.

[0011] Optionally, a pressure rod is threaded through one side of the mounting clip, and one end of the pressure rod that passes through the mounting clip is rotatably connected to a limit block.

[0012] Optionally, a wire-passing groove is provided on the other side of the mounting clip, and wire-passing holes are provided on the inner walls of both the push rod and the extension rod.

[0013] (III) Beneficial Effects

[0014] This utility model provides a scanning frame for inspecting drainage pipes, which has the following advantages:

[0015] 1. This drainage pipe inspection scanning frame, through the coordinated arrangement of a positioning plate, sleeve, and adjusting rod, allows the adjusting rod to slide along the inner wall of the sleeve, adapting to the inner wall contour of pipes with different diameters. It also compensates for differences in pipe diameter, enabling the scanning frame to stably adapt to drainage pipes of different nominal diameters. This eliminates the need for custom-made scanning frames for different pipe specifications, significantly reducing equipment investment costs and improving the equipment's versatility. The sleeve is connected to the positioning plate via a rotating shaft, allowing the sleeve and adjusting rod to be easily folded and stored after use.

[0016] 2. This drainage pipe inspection scanning frame, through the cooperation of the push rod and the positioning plate, allows the operator to adjust the insertion depth of the detection element on the mounting clamp by pushing or pulling the push rod. This enables the inspection of areas near the pipe inlet as well as deeper locations inside the pipe, adapting to different inspection depth requirements. Furthermore, the push rod can be rotated to achieve scanning coverage of different circumferential positions on the inner wall of the pipe, avoiding blind spots and improving the comprehensiveness of the inspection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the limiting ring of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall exploded structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the explosive structure of the sleeve of this utility model;

[0021] Figure 5 This is a schematic diagram of the exploded structure of the mounting clip of this utility model.

[0022] In the diagram: 1. Positioning plate; 2. Sleeve; 3. Compression spring; 4. Adjusting rod; 5. Roller; 6. Limiting ring; 7. Bearing; 8. Push rod; 9. Mounting clamp; 10. Pressure rod; 11. Limiting block; 12. Extension rod; 13. Wire groove; 14. Wire hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a scanning frame for inspecting drainage pipes, including a positioning plate 1. The outer wall of the positioning plate 1 is connected to multiple sleeves 2 via a rotating shaft. The inner wall of the sleeves 2 is slidably connected to an adjusting rod 4. A push rod 8 can be provided inside the positioning plate 1. One end of the push rod 8 is threadedly connected to an installation clip 9, and the other end of the push rod 8 is threadedly connected to an extension rod 12.

[0025] In this embodiment, the positioning disk 1 serves as the core load-bearing and connecting reference component of the scanning frame, undertaking the key functions of connecting the sleeve 2 and installing the push rod 8. It provides a stable mounting carrier and positioning reference for each structure, achieving orderly integration of various functional structures and ensuring the overall stability of the scanning frame structure. Its central mounting structure keeps the push rod 8 coaxial, providing precise guidance for the movement and rotation of the push rod 8, indirectly ensuring the scanning trajectory accuracy of the detection element and avoiding detection deviations caused by structural offsets. The sleeve 2 serves as the sliding guide carrier for the adjusting rod 4, connected to the positioning disk 1 via a rotating shaft, enabling folding and unfolding actions. Simultaneously, it houses a compression spring 3, providing stable guidance for the extension and retraction of the adjusting rod 4, ensuring smooth axial sliding of the adjusting rod 4. The foldable design allows the scanning rack to shrink in size after use, facilitating storage and transportation and reducing storage space occupation. Together with the compression spring 3 and adjusting rod 4, it provides a structural basis for adapting the scanning rack to pipes of different diameters. The adjusting rod 4 slides along the inner wall of the sleeve 2, with one end connected to the compression spring 3 and the other end fitted with a roller 5. It transmits the elastic force of the compression spring 3 and supports the roller 5 in contact with the inner wall of the pipe. By extending and retracting to adjust its extension length, it adapts to the inner wall contours of drainage pipes of different nominal diameters, significantly improving the versatility of the scanning rack. It eliminates the need for customized equipment for different pipe specifications. The roller 5 enables smooth movement of the scanning rack within the pipe, while the length adjustment keeps the scanning rack centered, ensuring a stable detection angle for the detection element. The push rod 8... The core component for operators to control the position of the detection element consists of a mounting clamp 9 at one end to support the detection element and an extension rod 12 at the other end. It moves and rotates via a bearing 7 and a positioning plate 1. Operators can flexibly adjust the insertion depth of the detection element by pushing or pulling the push rod 8, covering areas near the pipe inlet and extending into deeper parts of the pipe to meet different detection depth requirements. Rotating the push rod 8 drives the mounting clamp 9 and the detection element to rotate, achieving a circumferential scan of the pipe's inner wall and improving the comprehensiveness of the inspection. The threaded connection facilitates the assembly and disassembly of the mounting clamp 9 and the extension rod 12, improving equipment maintenance convenience. The mounting clamp 9 uses a pressure rod 10 and a limiting block 11 to fix the detection element, while a wire groove 13 is provided for tidying up. The wiring provides a stable mounting position for the detection elements, ensuring that the elements do not loosen or shift during the detection process. It is compatible with detection elements of different sizes, improving the compatibility of the scanning frame with different detection equipment. The wire groove 13, together with the wire hole 14, ensures neat wiring, avoiding messy wiring that could lead to tangling or damage, and ensuring the normal operation of the detection equipment. The extension rod 12 effectively increases the insertion depth of the detection elements, enabling the scanning frame to inspect the inside of pipes over longer distances, expanding the detection range. The threaded connection facilitates disassembly and assembly, and can be flexibly selected for installation according to the detection depth requirements, improving the flexibility of equipment use. The structural design, which matches the push rod 8, ensures the overall straightness and stability after extension, without affecting the movement and rotation functions of the push rod 8.

[0026] In the above embodiment, as a preferred option, a compression spring 3 is fixedly installed on the inner bottom wall of the sleeve 2. The other end of the compression spring 3 is fixedly connected to one end of the adjusting rod 4, and a roller 5 is fixedly installed on the other end of the adjusting rod 4. The compression spring 3, installed between the inner bottom wall of the sleeve 2 and the adjusting rod 4, provides elastic support, pushing the adjusting rod 4 outward. Utilizing its elastic reset characteristic, the adjusting rod 4 always tends to conform to the inner wall of the pipe, automatically compensating for dimensional differences in pipes of different diameters, ensuring that the roller 5 at the end of the adjusting rod 4 is tightly fitted to the inner wall of the pipe. When there are slight irregularities in the inner wall of the pipe, the elastic buffer reduces the shaking of the scanning frame, improves the stability during the detection process, and ensures the accuracy of the detection data. The extension rod 4, through telescopic adjustment of its extension length, adapts to the inner wall contours of drainage pipes with different nominal diameters, significantly improving the versatility of the scanning frame. It eliminates the need for customized equipment for different pipe specifications. Combined with rollers 5, it enables smooth movement of the scanning frame within the pipe. Simultaneously, the length adjustment ensures the scanning frame remains centered, guaranteeing a stable detection angle for the detection element. Rollers 5 significantly reduce resistance during the scanning frame's movement within the pipe, facilitating operators to push or pull the push rod 8 to adjust the detection position; reducing wear on the pipe's inner wall and preventing damage to its original state; and improving the smoothness of the scanning frame's movement through rolling contact, reducing bumps and shaking during movement, and ensuring the clarity and stability of the information collected by the detection element.

[0027] In the above embodiment, as a preferred solution, a limiting ring 6 is threadedly connected to one side of the outer surface of the positioning disk 1. The outer wall of the limiting ring 6 abuts against the outer wall of the sleeve 2. The limiting ring 6 prevents the sleeve 2 from rotating or shifting due to the reaction force of the inner wall of the pipe or the vibration of movement during the inspection operation. This ensures that the sleeve 2 always maintains the preset unfolding angle, thereby ensuring the stable support of the adjusting rod 4 and the roller 5 for the inspection frame. The threaded connection design makes it easy for operators to quickly adjust the limiting state, adapts to the fixing requirements of different unfolding angles of the sleeve 2, and improves the convenience of operation.

[0028] In the above embodiments, as a preferred option, the inner wall of the positioning disk 1 is detachably equipped with a bearing 7. The inner ring of the bearing 7 is sleeved on the outer wall of the push rod 8. The bearing 7 reduces the resistance during the rotation of the push rod 8, allowing the operator to easily rotate the push rod 8 and achieve scanning coverage of different circumferential positions on the inner wall of the pipeline by the detection element, effectively avoiding blind spots in the detection. The detachable design facilitates the maintenance and replacement of the bearing 7, extends the service life of the scanning frame, and ensures the coaxiality of the push rod 8 during rotation through the positioning function of the bearing 7, preventing the push rod 8 from deviating and causing disorder in the detection trajectory.

[0029] In the above embodiments, as a preferred option, a pressure rod 10 is threaded through one side of the mounting clip 9. One end of the pressure rod 10, which is inserted into the mounting clip 9, is rotatably connected to a limiting block 11. The pressure rod 10, with its threaded transmission structure, allows for precise adjustment of the clamping force, ensuring both secure fixation of the detection element and preventing damage to the detection element due to excessive clamping force. Operation is convenient, allowing operators to assemble and disassemble the detection element without the need for special tools, thus improving the efficiency of the inspection work. It is adaptable to detection elements of different thicknesses or sizes, further enhancing the versatility of the mounting clip 9. The limiting block 11 increases the contact area with the detection element, dispersing the clamping force and preventing damage to the detection element due to excessive local pressure. The rotatable design allows the limiting block 11 to adapt to the surface contour of the detection element, improving the clamping fit and stability. It prevents the detection element from shifting due to vibration or movement during scanning, ensuring the stability of the inspection angle and the accuracy of the inspection data.

[0030] In the above embodiments, as a preferred option, a wire-passing groove 13 is provided on the other side of the mounting clip 9, and wire-passing holes 14 are provided on the inner walls of the push rod 8 and the extension rod 12. The wire-passing groove 13 is used to organize and constrain the wires, preventing them from falling out of the mounting clip 9; it prevents the wires from rubbing, tangling, or being pulled against the inner wall of the pipe or other structures of the scanning frame during the movement or rotation of the scanning frame, protecting the wires from damage; it ensures a neat layout of the wires, making it easy for operators to observe the status of the wires and reducing the difficulty of troubleshooting wire faults. The wire-passing holes 14 house the wires inside the push rod 8 and the extension rod 12, completely avoiding wear and tangling problems caused by exposed wires, further protecting the safety of the wires; it does not affect the appearance and mobility of the scanning frame, and prevents wire protrusions from interfering with the inner wall of the pipe; it facilitates the overall layout and organization of the wires, improving the overall integrity and reliability of the equipment.

[0031] In this invention, the working steps of the device are as follows:

[0032] First, unfold the multiple sleeves 2 connected to the outer wall of the positioning plate 1 by the rotating shaft. According to the nominal diameter of the drainage pipe to be inspected, initially adjust the unfolding angle of the sleeves 2 to ensure that the adjusting rod 4 has enough telescopic space to adapt to the inner diameter of the pipe. Rotate the limiting ring 6 on one side of the outer surface of the positioning plate 1 so that the outer wall of the limiting ring 6 presses against the outer wall of the sleeve 2, limiting and fixing the unfolded sleeve 2 to prevent the sleeve 2 from rotating and shifting during the inspection process. With the elastic support force of the compression spring 3 inside the sleeve 2, push the adjusting rod 4 to extend outward along the inner wall of the sleeve 2 so that the roller 5 at the end of the adjusting rod 4 can adapt to the inner wall contour of the pipe, completing the initial adaptation between the scanning frame and the inner diameter of the pipe.

[0033] Next, place the camera, sensor, and other detection components into the mounting clamp 9. Rotate the pressure rod 10 on one side of the mounting clamp 9 to push the limiting block 11 at the end of the pressure rod 10 to move, so that the limiting block 11 cooperates with the inner wall of the mounting clamp 9 to clamp the detection components, ensuring that the detection components are firmly fixed without loosening. Pass the wires connected to the detection components through the wire groove 13 on the other side of the mounting clamp 9, and then through the wire hole 14 on the inner wall of the push rod 8 and the extension rod 12 to achieve a hidden arrangement of the wires and avoid messy and scattered wires. If it is necessary to detect the deep area of ​​the pipeline, thread the extension rod 12 to the end of the push rod 8 away from the mounting clamp 9 to extend the overall length of the push rod 8 to adapt to the deep detection requirements.

[0034] The assembled scanning frame is then placed into the drainage pipe inlet, with the roller 5 at the end of the adjusting rod 4 fitting against the inner wall of the pipe. The roller 5 reduces movement resistance, allowing the scanning frame to be pushed smoothly. The operator can adjust the insertion depth of the detection element on the mounting clip 9 by pushing or pulling the push rod 8, covering areas near the pipe inlet and further inside, adapting to different detection depth requirements. Using the detachable bearing 7 on the inner wall of the positioning plate 1, the push rod 8 can be easily rotated, driving the mounting clip 9 and the detection element to rotate, enabling scanning of different circumferential positions on the inner wall of the pipe, avoiding blind spots. During the movement of the scanning frame, the compression spring 3 can automatically compensate for slight unevenness on the inner wall of the pipe, reducing the shaking of the scanning frame and ensuring detection stability.

[0035] After the final inspection is completed, pull the push rod 8 to smoothly remove the scanning frame from the pipe, avoiding collision with the pipe outlet or inner wall. Loosen the pressure rod 10 to remove the detection element, disassemble the extension rod 12 as needed, tidy up the wiring hidden in the wire hole 14 and wire groove 13, loosen the limit ring 6 to release the limit on the sleeve 2, fold the sleeve 2 and the adjusting rod 4 to fit the positioning plate 1, reduce the overall volume of the scanning frame, and facilitate storage and subsequent transportation.

[0036] 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 scanning frame for inspecting drainage pipes, comprising a positioning plate (1), characterized in that: The outer wall of the positioning disk (1) is connected to multiple sleeves (2) via a rotating shaft. The inner wall of the sleeve (2) is slidably connected to an adjusting rod (4). A push rod (8) can be provided inside the positioning disk (1). One end of the push rod (8) is threadedly connected to an installation clip (9), and the other end of the push rod (8) is threadedly connected to an extension rod (12).

2. The scanning frame for inspecting drainage pipes according to claim 1, characterized in that: A compression spring (3) is fixedly installed on the inner bottom wall of the sleeve (2). The other end of the compression spring (3) is fixedly connected to one end of the adjusting rod (4). A roller (5) is fixedly installed on the other end of the adjusting rod (4).

3. The scanning frame for inspecting drainage pipes according to claim 1, characterized in that: A limiting ring (6) is threadedly connected to one side of the outer surface of the positioning disk (1), and the outer wall of the limiting ring (6) abuts against the outer wall of the sleeve (2).

4. The scanning frame for inspecting drainage pipes according to claim 1, characterized in that: The inner wall of the positioning disk (1) is detachably fitted with a bearing (7), and the inner ring of the bearing (7) is sleeved on the outer wall of the push rod (8).

5. A scanning frame for inspecting drainage pipes according to claim 1, characterized in that: A pressure rod (10) is threaded through one side of the mounting clip (9), and one end of the pressure rod (10) that passes through the mounting clip (9) is rotatably connected to a limit block (11).

6. A scanning frame for inspecting drainage pipes according to claim 1, characterized in that: The mounting clip (9) has a wire groove (13) on the other side, and the inner walls of the push rod (8) and the extension rod (12) are provided with wire holes (14).

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