Device for nondestructive testing of buried pipeline
By designing a non-destructive testing device for buried pipelines with protective mechanisms and adjustment components, the problems of easy probe damage and incomplete detection have been solved, enabling complete pipeline inspection.
Patent Information
- Application Number
- CN202520307290.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Traditional non-destructive testing instruments have probes that are easily damaged by bumps and cannot fully inspect pipes, especially at pipe bends where the inspection results are poor.
A non-destructive testing device for buried pipelines, comprising a protective mechanism and an adjustment component, was designed. The protective mechanism protects the probe through a protective shell and a slider, while the adjustment component enables the device to navigate pipeline corners via a cylinder and a telescopic rod, ensuring the integrity of the testing.
It effectively protects the probe from damage and can completely inspect the pipeline, including pipe bends, thus improving the inspection results.
Smart Images

Figure CN223966085U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of testing instruments, and in particular to a device for non-destructive testing of buried pipelines. Background Technology
[0002] Testing instruments are devices used to detect and measure various physical, chemical, or biological properties. They are widely used in industries, medicine, scientific research, and other fields to help users obtain accurate data to support decision-making and quality control. There are many types of testing instruments, including non-destructive testing instruments, quality testing instruments, and analytical instruments. Quality testing instruments are mainly used to test the mechanical, weathering, and other properties of products to ensure the control of production quality and product performance. However, the inspection of pipelines often requires the assistance of non-destructive testing instruments.
[0003] Currently available non-destructive testing instruments have the following problems when used:
[0004] 1. When traditional non-destructive testing instruments are used, the probe part of the testing instrument needs to inspect the inside of the pipe. This makes the probe easy to be repeatedly bumped during the test, resulting in surface damage and affecting the final test results. The anti-bump structure of the probe part of the existing testing instruments is relatively simple and its anti-bump effect is poor.
[0005] 2. Most non-destructive testing instruments, when used, do not take into account the angles within the pipeline, which prevents the instruments from inspecting the entire pipeline, resulting in incomplete inspections. Utility Model Content
[0006] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.
[0007] Therefore, one objective of this utility model is to provide a device for non-destructive testing of buried pipelines, which can avoid excessive material addition and reduce the impact on the safety of relevant personnel by adjusting the feeding speed and quantity.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a device for non-destructive testing of buried pipelines, comprising a main body, wherein a protective mechanism is provided on the main body;
[0009] The protective mechanism includes a fixed base, a mounting groove, a sliding groove, a fixing groove, a spring, a fixing ring, a protective shell, and a slider. The fixed base is fixed to the outer wall of the main body. The inner wall of the fixed base has a mounting groove and a sliding groove connected to the mounting groove. The inner wall of the mounting groove has a fixing groove. A spring is installed inside the mounting groove. A fixing ring is installed at one end of the spring. The outer side of the main body is covered with a protective shell, and a slider is fixed to the outer wall of the protective shell.
[0010] Preferably, the main body includes a machine body, rollers, and a probe, with rollers and a probe provided on the outer wall of the machine body.
[0011] Preferably, the fixing groove is symmetrically opened about the central axis of the mounting groove, and the inner wall size of the fixing groove matches the outer wall size of the slider.
[0012] Preferably, the inner wall dimensions of the groove match the outer wall dimensions of the slider, and the slider is installed symmetrically about the central axis of the protective shell.
[0013] Preferably, the inner wall dimension of the mounting base matches the outer wall dimension of the probe, and the outer wall dimension of the protective shell matches the inner wall dimension of the mounting groove.
[0014] Preferably, the outer wall of the main body is provided with an adjustment component, which includes a mounting hole, a cylinder, a telescopic rod, a connecting shaft, a connecting plate, an adjustment block, and a fixing hole. The mounting hole is provided inside the main body, and a cylinder is provided inside the mounting hole. The connecting shaft is provided on the main body, and a connecting plate is connected through one end of the connecting shaft. An adjustment block is connected to the outer wall of the connecting plate, and a fixing hole is provided on the outer wall of the adjustment block.
[0015] Preferably, the fixing holes are symmetrically opened on the outer wall of the adjusting block, and the inner wall size of the fixing holes matches the outer wall size of the telescopic rod.
[0016] Compared with the prior art, the beneficial effects of this utility model are: the device for non-destructive testing of buried pipelines, by adjusting the settings of the components, can continue to test the pipeline by passing through the corners of the pipeline when testing the buried pipeline. At the same time, the protective mechanism can protect the probe from touching the inner wall of the pipeline, thereby preventing the probe from being damaged. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall appearance structure of a device for non-destructive testing of buried pipelines according to the present invention.
[0018] Figure 2 This is a partial cross-sectional structural diagram of a device for non-destructive testing of buried pipelines according to the present invention;
[0019] Figure 3 This is a schematic diagram of the structure of a device for non-destructive testing of buried pipelines, which uses a fixed base and a sliding groove in combination.
[0020] Figure 4 This is a schematic diagram of the structure of a device for non-destructive testing of buried pipelines according to the present invention, showing the connection shaft and connection plate used in conjunction.
[0021] Figure 5 This utility model relates to a device for non-destructive testing of buried pipelines. Figure 2 Enlarged structural diagram at point A in the middle.
[0022] In the diagram: 1. Main body; 11. Machine body; 12. Roller; 13. Probe; 2. Protective mechanism; 21. Fixing base; 22. Mounting slot; 23. Slide groove; 24. Fixing slot; 25. Spring; 26. Fixing ring; 27. Protective shell; 28. Sliding block; 3. Adjustment assembly; 31. Mounting hole; 32. Cylinder; 33. Telescopic rod; 34. Connecting shaft; 35. Connecting plate; 36. Adjusting block; 37. Fixing 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. 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.
[0024] Please see Figure 1 -5. This utility model provides a technical solution: a device for non-destructive testing of buried pipelines, including a main body 1, on which a protective mechanism 2 is provided;
[0025] The protective mechanism 2 includes a fixed base 21, a mounting groove 22, a sliding groove 23, a fixing groove 24, a spring 25, a fixing ring 26, a protective shell 27, and a slider 28. The fixed base 21 is fixed to the outer wall of the main body 1. The inner wall of the fixed base 21 has a mounting groove 22 and a sliding groove 23 connected to the mounting groove 22. The inner wall of the mounting groove 22 has a fixing groove 24, and a spring 25 is installed inside the mounting groove 22. A fixing ring 26 is installed at one end of the spring 25. The outer side of the main body 1 is fitted with a protective shell 27, and a slider 28 is fixed to the outer wall of the protective shell 27. Through the arrangement of the fixed base 21, mounting groove 22, sliding groove 23, fixing groove 24, spring 25, fixing ring 26, protective shell 27, and slider 28, in use, the spring is first... Spring 25 is installed in mounting groove 22, and fixing ring 26 is installed on the other end of spring 25. When installing protective shell 27, slider 28 on the outer wall of protective shell 27 is aligned with sliding groove 23 and inserted. At this time, the bottom wall of protective shell 27 will squeeze fixing ring 26, thereby causing spring 25 to contract. Then rotate protective shell 27. At this time, slider 28 on the outer wall of protective shell 27 will slide in mounting groove 22. Finally, slider 28 is aligned with fixing groove 24 and inserted. At this time, release protective shell 27. Spring 25 will pop fixing ring 26 to the outer wall of fixing groove 24, thereby fixing slider 28 in fixing groove 24. At this time, protective shell 27 is installed. When detecting the integrity of pipeline, protective shell 27 can prevent device from contacting the inner wall of pipeline and causing damage to probe 13.
[0026] Furthermore, the main body 1 includes a body 11, rollers 12, and a probe 13. Rollers 12 and probe 13 are provided on the outer wall of the body 11. With the arrangement of the body 11, rollers 12, and probe 13, the rollers 12 are installed on both sides of the body 11 and the probe 13 is installed on one end of the body 11 during use. When inspecting the pipeline, the device is inserted into the pipeline through the opening. At this time, the entire device moves inside the pipeline by means of the rollers 12, and the probe 13 will observe the condition of the inner wall of the pipeline by rotating.
[0027] Furthermore, the outer wall of the main body 1 is provided with an adjustment component 3, which includes a mounting hole 31, a cylinder 32, a telescopic rod 33, a connecting shaft 34, a connecting plate 35, an adjustment block 36, and a fixing hole 37. The machine body 11 has a mounting hole 31 inside, and a cylinder 32 is installed inside the mounting hole 31. A connecting shaft 34 is installed on the machine body 11, and one end of the connecting shaft 34 is connected to the connecting plate 35. An adjustment block 36 is connected to the outer wall of the connecting plate 35, and a fixing hole 37 is provided on the outer wall of the adjustment block 36. The adjustment block 36 is connected to the mounting hole 31, cylinder 32, telescopic rod 33, and... The connecting shaft 34, connecting plate 35, adjusting block 36, and fixing hole 37 are configured such that, during use, two sets of adjusting blocks 36 are inserted between the two machine bodies 11, a telescopic rod 33 is installed at the output end of the cylinder 32, and the cylinder 32 is installed into the mounting hole 31. Then, the adjusting block 36 is connected to the machine body 11 through the connecting shaft 34 and connecting plate 35. When the device encounters a corner of the pipe during pipeline inspection, the cylinder 32 retracts, pulling the telescopic rod 33 out of the fixing hole 37 of the adjusting block 36. At this time, the entire device can continue to inspect the pipe through the corner.
[0028] Furthermore, the fixing groove 24 is symmetrically opened with respect to the central axis of the mounting groove 22. The inner wall size of the fixing groove 24 matches the outer wall size of the slider 28. With the setting of the fixing groove 24, when in use, the spring 25 is installed inside the mounting groove 22 and works with the fixing ring 26 so that when the slider 28 slides into the fixing groove 24, the spring 25 will pop the fixing ring 26 to the outer wall of the fixing groove 24, thereby fixing the slider 28 in the fixing groove 24.
[0029] Furthermore, the inner wall size of the slide groove 23 matches the outer wall size of the slider 28. The slider 28 is installed symmetrically about the central axis of the protective shell 27. With the slider 28 in use, the slider 28 slides into the mounting groove 22 through the slide groove 23, and then the slider 28 is inserted into the fixing groove 24. The spring 25 will pop the fixing ring 26 to the outer wall of the fixing groove 24, thereby fixing the slider 28 in the fixing groove 24.
[0030] Furthermore, the inner wall size of the mounting base 21 matches the outer wall size of the probe 13, and the outer wall size of the protective shell 27 matches the inner wall size of the mounting groove 22. With the protective shell 27 in place, the protective shell 27 can prevent the device from contacting the inner wall of the pipe during use, thus preventing damage to the probe 13.
[0031] Furthermore, the fixing holes 37 are symmetrically opened on the outer wall of the adjusting block 36, and the inner wall size of the fixing holes 37 matches the outer wall size of the telescopic rod 33. With the setting of the adjusting block 36, in use, the device as a whole has the necessary conditions to pass through the corner of the pipe through the cooperation of the adjusting block 36, the connecting plate 35 and the connecting shaft 34.
[0032] Working principle: In use, first install the spring 25 in the mounting groove 22 and install the retaining ring 26 on the other end of the spring 25. When installing the protective shell 27, align the slider 28 on the outer wall of the protective shell 27 with the sliding groove 23 and insert it. At this time, the bottom wall of the protective shell 27 will squeeze the retaining ring 26, thereby causing the spring 25 to contract. Then rotate the protective shell 27. At this time, the slider 28 on the outer wall of the protective shell 27 will slide in the mounting groove 22. Finally, align the slider 28 with the retaining groove 24 and insert it. At this time, release the protective shell 27. The spring 25 will then pop the retaining ring 26 to the outer wall of the retaining groove 24, thereby fixing the slider 28 in the retaining groove 24. At this time, the installation of the protective shell 27 is complete. When detecting the integrity of the pipeline, the protective shell 27 can prevent the device from contacting the inner wall of the pipeline and causing the probe to malfunction. To prevent damage to the probe 13, the roller 12 is installed on both sides of the machine body 11, and the probe 13 is installed at one end of the machine body 11. When inspecting the pipeline, the device is inserted into the pipeline through the opening. The entire device moves inside the pipeline via the roller 12, while the probe 13 rotates to observe the condition of the inner wall of the pipeline. Two sets of adjusting blocks 36 are inserted between the two machine bodies 11. A telescopic rod 33 is installed at the output end of the cylinder 32, and the cylinder 32 is installed into the mounting hole 31. Then, the adjusting block 36 is connected to the machine body 11 via the connecting shaft 34 and the connecting plate 35. When inspecting the pipeline, when the device encounters a corner of the pipeline, the cylinder 32 retracts, pulling the telescopic rod 33 out of the fixing hole 37 of the adjusting block 36. At this time, the entire device can continue to inspect the pipeline through the corner.
[0033] 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 device for non-destructive testing of buried pipelines, comprising a main body (1), characterized in that: The main body (1) is provided with a protective mechanism (2); The protective mechanism (2) includes a fixed seat (21), a mounting groove (22), a sliding groove (23), a fixing groove (24), a spring (25), a fixing ring (26), a protective shell (27), and a slider (28). The outer wall of the main body (1) is fixed with a fixed seat (21). The inner wall of the fixed seat (21) is provided with a mounting groove (22). The inner wall of the fixed seat (21) is provided with a sliding groove (23), and the sliding groove (23) is connected to the mounting groove (22). The inner wall of the mounting groove (22) is provided with a fixing groove (24). The mounting groove (22) is installed with a spring (25). One end of the spring (25) is provided with a fixing ring (26). The outer side of the main body (1) is covered with a protective shell (27). The outer wall of the protective shell (27) is fixed with a slider (28).
2. The device for non-destructive testing of buried pipelines according to claim 1, characterized in that: The main body (1) includes a body (11), a roller (12) and a probe (13). The outer wall of the body (11) is provided with a roller (12) and the outer wall of the body (11) is provided with a probe (13).
3. The device for non-destructive testing of buried pipelines according to claim 2, characterized in that: The fixing groove (24) is symmetrically opened about the central axis of the mounting groove (22), and the inner wall size of the fixing groove (24) matches the outer wall size of the slider (28).
4. The device for non-destructive testing of buried pipelines according to claim 1, characterized in that: The inner wall dimensions of the groove (23) match the outer wall dimensions of the slider (28), which is symmetrically installed about the central axis of the protective shell (27).
5. The device for non-destructive testing of buried pipelines according to claim 1, characterized in that: The inner wall dimension of the mounting base (21) matches the outer wall dimension of the probe (13), and the outer wall dimension of the protective shell (27) matches the inner wall dimension of the mounting groove (22).
6. The device for non-destructive testing of buried pipelines according to claim 2, characterized in that: The outer wall of the main body (1) is provided with an adjustment component (3). The adjustment component (3) includes a mounting hole (31), a cylinder (32), a telescopic rod (33), a connecting shaft (34), a connecting plate (35), an adjustment block (36), and a fixing hole (37). The machine body (11) has a mounting hole (31) inside. The mounting hole (31) has a cylinder (32) inside. The machine body (11) has a connecting shaft (34) on it. One end of the connecting shaft (34) is connected to the connecting plate (35). The outer wall of the connecting plate (35) is connected to the adjustment block (36). The outer wall of the adjustment block (36) has a fixing hole (37).
7. The device for non-destructive testing of buried pipelines according to claim 6, characterized in that: The fixing holes (37) are symmetrically opened on the outer wall of the adjusting block (36), and the inner wall size of the fixing holes (37) matches the outer wall size of the telescopic rod (33).