A pipe inspection tool
By designing a pipeline inspection tool with a support frame and inspection components, and utilizing a ring array ultrasonic detector and elastic ball bearing design, the problem of limited inspection positions in existing technologies has been solved, achieving accuracy and applicability in chemical pipeline thickness inspection and protecting pipeline integrity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 湖北科海化工科技有限公司
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-29
AI Technical Summary
Existing ultrasonic testing methods require manual hand-held instruments, which limits the testing location and range, easily leading to increased errors and making it difficult to accurately assess the degree of corrosion in chemical pipelines.
A pipe inspection tool was designed, comprising a support frame, inspection components, and an arc plate. It utilizes an ultrasonic detector with a ring array to perform inspections at multiple points. Combined with elastic elements and ball bearings, it adapts to different pipe sizes, ensuring both inspection accuracy and protection.
It enables multi-point detection, reduces errors, improves the accuracy and applicability of chemical pipeline thickness detection, adapts to pipelines of different sizes, and protects pipelines from damage.
Smart Images

Figure CN224301850U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical pipeline maintenance technology, specifically a pipeline maintenance tool. Background Technology
[0002] The maintenance of chemical pipelines is a crucial task because corrosion of the pipeline's inner walls by chemical liquids can thin the pipe, compromising the safety of transport. Corrosion refers to the erosion and damage caused by chemical liquids to the pipeline material, potentially leading to thinning of the pipe walls and cracks, which in turn can cause leaks and accidents. Therefore, timely inspection is essential to ensuring the safe operation of pipelines.
[0003] To avoid damaging the pipeline, non-destructive testing techniques (such as ultrasonic testing and magnetic particle testing) are generally used to conduct a comprehensive inspection of the pipeline to determine the degree and location of corrosion.
[0004] The commonly used ultrasonic testing method requires manual handheld testing instruments to measure points on the surface of the pipe to determine changes in its thickness. However, this method has been found to have limitations in terms of the detection location and range, which can easily lead to increased detection errors. Therefore, it needs to be improved. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a pipeline maintenance tool to solve the problems mentioned in the background section.
[0006] The pipeline inspection tool of this utility model includes a support frame for inspection, an inspection component mounted on the support frame, an arc plate for auxiliary support frame installation, and the pipeline to be inspected.
[0007] The support frame includes a frame body, and a detection component arranged in a circular array on one side of the frame body is used to detect the thickness of the pipe.
[0008] The detection component includes a detection rod with a detection area at its bottom. One or more mounting holes are arranged in a horizontal array on the inner side of the detection area. An ultrasonic thickness gauge is installed at the mounting holes for detecting the thickness of the pipe.
[0009] As a further improvement of this utility model, one side of the frame is provided with through holes arranged in a circular array, and a combination block is provided, one end of which is connected to the detection rod.
[0010] As a further improvement of this utility model, both sides of the frame extend outward to form extended support arms. The top of the extended support arm is provided with a positioning hole, and a fastener is provided inside the positioning hole for fixing the frame.
[0011] As a further improvement of this utility model, the inner side of the frame is provided with a plurality of plug-in tubes arranged in a circular array, and the inner side of the plug-in tubes is provided with an elastic element, the bottom of which is connected to the arc-shaped plate.
[0012] As a further improvement of this utility model, the arc-shaped plate includes a plate body, and a mounting groove is provided on the top of the plate body, the mounting groove being adapted to the elastic element.
[0013] As a further improvement of this utility model, a combination groove is provided at the bottom of the plate, and a ball bearing that is combined with the pipe is provided on the inner side of the combination groove to force the plate to fit against the pipe.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This utility model uses a support frame and a set detection component. By using a set detection rod and installing multiple ultrasonic detectors, it can be adapted to the outside of the pipe when inspecting the pipe. Through the setting and detection of multiple points, the inner wall thickness of the pipe can be detected, avoiding omissions as much as possible. At the same time, the multiple detection points can be cross-verified to reduce detection errors.
[0016] Meanwhile, the combination of elastic components and support frames for pipeline installation allows for external adaptation to pipelines of different sizes, thereby meeting the needs of inspection. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0018] Figure 1 This is a three-dimensional structural diagram of the combination of the support frame and the detection component of this utility model;
[0019] Figure 2 This is a three-dimensional structural diagram of the combination of the support frame and the detection component of this utility model from another angle;
[0020] Figure 3 This is a front view structural diagram of the support frame, detection components, and pipeline assembly of this utility model;
[0021] Figure 4 This is a three-dimensional structural diagram of the detection component of this utility model;
[0022] Figure 5 This is a top view of the detection component of this utility model.
[0023] Figure 6This is a schematic diagram of the three-dimensional structure of the arc-shaped plate of this utility model;
[0024] Figure 7 This is a three-dimensional structural diagram of the arc-shaped plate of this utility model from another angle.
[0025] In the diagram: 1. Support frame; 2. Detection assembly; 3. Connector sleeve; 4. Arc plate; 5. Pipe; 6. Elastic element; 7. Fastener;
[0026] 11. Frame; 12. Positioning holes;
[0027] 21. Detection rod; 22. Assembly block; 23. Mounting hole; 24. Detection area;
[0028] 41. Panel; 42. Mounting slot; 43. Combination slot. Detailed Implementation
[0029] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.
[0030] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0031] Please see Figures 1-7 The commonly used ultrasonic testing method requires manual hand-held testing instruments to perform point-by-point testing on the surface of pipe 5 in order to determine the change in its thickness. When using this method, it was found that the detection position and detection range are limited, which can easily lead to increased detection errors. Based on this, this application provides a pipe 5 inspection tool, including a support frame 1 for testing, a testing component 2 set on the support frame 1, an arc plate 4 for auxiliary support frame 1 installation, and the pipe 5 to be tested.
[0032] The support frame 1 includes a frame body 11, and a detection assembly 2 arranged in a ring array is provided on one side of the frame body 11 for detecting the thickness of the pipe 5.
[0033] The detection component 2 includes a detection rod 21. A detection area 24 is provided at the bottom of the detection rod 21. One or more mounting holes 23 are arranged in a horizontal array on the inner side of the detection area 24. An ultrasonic thickness detector is installed at the mounting hole 23 for detecting the thickness of the bottom of the pipe 5.
[0034] Using an auxiliary support frame 1, the arc-shaped plate 4 is installed on the pipe 5 to be inspected, ensuring that the arc-shaped plate 4 is completely flush with the bottom of the outer surface of the pipe 5. Then, on the other side of the support frame 1, the detection components 2 arranged in a ring array are fitted with the pipe 5, and the position and angle of the support frame 1 are adjusted to ensure that the detection components 2 can match the pipe 5. The detection component 2 includes a detection rod 21, the bottom of which has a detection area 24, and one or more mounting holes 23 are provided on its inner side. Each mounting hole 23 is equipped with an ultrasonic thickness gauge, which can simultaneously detect the thickness of different positions on the pipe 5.
[0035] During the inspection, the inspection component 2 can be raised or lowered to ensure contact between the inspector and the wall of pipe 5. When the inspector starts working, it emits ultrasonic signals that pass through the wall of pipe 5. When the ultrasonic waves encounter changes in the inner wall of pipe 5, some energy is reflected back. These reflected signals can be received and stored by the inspector. By analyzing the time difference and intensity of the reflected signals, the thickness and location of the inner wall of pipe 5 can be determined. Multi-point inspection helps reduce errors and improves the accuracy of pipe 5 thickness detection. After the inspection is completed, the next maintenance plan for pipe 5 can be determined based on the inspection results.
[0036] The ultrasonic testing instrument can also be equipped with a data acquisition device to record the detected thickness data, facilitating subsequent data analysis and comparison. Besides its use in the maintenance of chemical pipelines 5, this tool can also be applied to thickness detection, damage assessment, and preventative maintenance of other industrial pipelines 5.
[0037] One side of the frame 11 is provided with through holes arranged in a ring array, and a combination block 22 is provided thereon, one end of the combination block 22 being connected to the detection rod 21.
[0038] Both sides of the frame 11 extend outward to form extended support arms. The top of the extended support arm is provided with a positioning hole 12, and a fastener 7 is provided on the inner side of the positioning hole 12 for fixing the frame 11.
[0039] The inner side of the frame 11 is provided with a plurality of plug-in tubes 3 arranged in a ring array. The inner side of the plug-in tubes 3 is provided with elastic elements 6, and the bottom of the elastic elements 6 is connected to the arc plate 4.
[0040] One side of the frame 11 has a ring-shaped array of through holes and a combination block 22, which can be connected to the detection rod 21 to ensure the stability and accuracy of the detection rod 21 during use. On the extended support arms forming outwards on both sides of the frame 11, positioning holes 12 are provided at the top, and fasteners 7 are installed inside the positioning holes 12 for reliable fixation of the frame 11. This fixing method prevents the frame 11 from shaking or moving during use, thereby ensuring the accuracy of the test results.
[0041] In addition, the inner side of the frame 11 of the pipe inspection tool is arranged in a circular array with multiple plug-in tubes 3. The inner side of each plug-in tube 3 is provided with an elastic element 6, and its bottom is connected to the arc-shaped plate 4. This design can accommodate pipes 5 of different sizes, allowing the inspection component 2 to accurately detect the wall thickness of the pipe 5. Moreover, the elastic element 6 can prevent the inspection component 2 from damaging the inner wall of the pipe 5.
[0042] When using this pipeline inspection tool on site, staff can select the appropriate support frame 1 and accessories according to the actual situation of the pipeline 5, so that the tool can quickly and accurately complete the pipeline inspection work.
[0043] The curved plate 4 includes a plate body 41, and a mounting groove 42 is provided on the top of the plate body 41. The mounting groove 42 is adapted to the elastic element 6.
[0044] The bottom of the plate 41 is provided with a combination groove 43, and the inner side of the combination groove 43 is provided with ball bearings that are combined with the pipe 5 to force the plate 41 to fit into the pipe 5.
[0045] The curved plate 4 is an important component of the pipe maintenance tool 5, and it consists of a plate body 41. The top of this plate body 41 has a mounting groove 42, which is adapted to the elastic element 6, ensuring the elasticity and stability of the mounting groove 42. This design allows the mounting groove 42 to be flexibly installed on the top of the curved plate 4 and to be tightly connected to the elastic element 6, ensuring the reliability and durability of the elastic element 6 during use.
[0046] In addition, the bottom of the arc-shaped plate 4 is provided with a combination groove 43, and the inner side of the combination groove 43 is provided with balls that combine with the pipe 5. The function of these balls is to force the arc-shaped plate 4 to fit tightly against the pipe 5, ensuring direct contact between the detection component 2 and the wall of the pipe 5. Through the forcing action of the balls, the arc-shaped plate 4 can fit pipes 5 of different shapes and sizes, ensuring the accuracy and reliability of the detection.
[0047] The design of the arc-shaped plate 4 not only considers its fit with the pipe 5, but also emphasizes its protection. The plate body 41 is made of high-strength, wear-resistant material, which can withstand greater pressure and friction, ensuring that it will not scratch or otherwise damage the wall of the pipe 5 during the inspection process.
[0048] This arc-shaped plate 4 design allows it to be stably fixed to the pipe 5, ensuring a tight fit between the inspection component 2 and the pipe 5 without any loosening. At the same time, its adaptability and protective performance enable efficient and accurate completion of tasks in various pipe 5 inspection operations.
[0049] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A pipeline inspection tool, comprising a support frame (1) for inspection, an inspection component (2) disposed on the support frame (1), an arc plate (4) mounted on the auxiliary support frame (1), and a pipeline (5) to be inspected. Its features are: The support frame (1) includes a frame body (11), and a detection component (2) arranged in a ring array is provided on one side of the frame body (11) for detecting the thickness of the pipe (5). The detection component (2) includes a detection rod (21), and a detection area (24) is provided at the bottom of the detection rod (21). One or more mounting holes (23) are arranged in a horizontal array on the inner side of the detection area (24). An ultrasonic thickness detector is installed at the mounting hole (23) for detecting the thickness of the bottom of the pipe (5).
2. The pipeline maintenance tool according to claim 1, characterized in that: The frame (11) has through holes arranged in a ring array on one side and a combination block (22) is provided. One end of the combination block (22) is connected to the detection rod (21).
3. The pipeline maintenance tool according to claim 1, characterized in that: Both sides of the frame (11) extend outward to form extended support arms. The top of the extended support arms is provided with positioning holes (12), and fasteners (7) are provided on the inner side of the positioning holes (12) for fixing the frame (11).
4. A pipeline maintenance tool according to claim 1, characterized in that: The inner side of the frame (11) is provided with a plurality of plug tubes (3) arranged in a ring array. The inner side of the plug tubes (3) is provided with elastic elements (6), and the bottom of the elastic elements (6) is connected to the arc plate (4).
5. A pipeline maintenance tool according to claim 1, characterized in that: The arc-shaped plate (4) includes a plate body (41), and a mounting groove (42) is provided on the top of the plate body (41). The mounting groove (42) is adapted to the elastic element (6).
6. A pipeline maintenance tool according to claim 5, characterized in that: The bottom of the plate (41) is provided with a combination groove (43), and the inner side of the combination groove (43) is provided with a ball bearing that is combined with the pipe (5) to force the plate (41) to fit into the pipe (5).