A nondestructive testing device for detecting corrosion of a buried pipeline

Abstract

The utility model relates to the technical field of buried pipeline detection, disclose a kind of nondestructive testing equipment for buried pipeline anticorrosion detection, including equipment bin one, equipment bin one bottom is fixedly connected with equipment bin two, the right side top of equipment bin one is fixedly connected with connecting block, rotary groove is established in the right side of connecting block, rotating shaft is rotatably connected with the right side inside of connecting block, the outer periphery of rotating shaft is fixedly connected with ratchet wheel, handheld grip is abutted with the right side inside of connecting block, rotary bin is established in the right side inside of handheld grip, ratchet pawl is rotatably connected with the right side inside of handheld grip, spring is fixedly connected with the bottom of ratchet pawl front and back, the bottom of ratchet pawl is fixedly connected with pull rod, the left side of handheld grip is fixedly connected with display.The utility model is in, through the angle adjusting mechanism of ratchet wheel, ratchet pawl, spring and pull rod, effectively improve the defect that traditional equipment fixed angle handle is inconvenient to operate, improve the precision of detection and the efficiency of operation.

Description

Technical Field

[0001] This utility model relates to the field of underground pipeline inspection technology, and in particular to a non-destructive testing device for underground pipeline corrosion inspection. Background Technology

[0002] Buried pipelines are widely used in oil, natural gas, water supply and other fields. The integrity of their anti-corrosion layer directly affects the service life and safety of the pipeline. However, pipelines buried underground for a long time are affected by soil stress, chemical corrosion, microbial erosion and other factors. The anti-corrosion layer is prone to defects such as damage and peeling, which leads to corrosion of the pipeline body and even leakage accidents. The main function of traditional testing equipment is to judge the integrity of the anti-corrosion layer and the corrosion of the pipeline body through physical testing methods without damaging the pipeline structure.

[0003] The non-destructive testing equipment currently in use has a fixed-angle handle that cannot adapt to different operating scenarios, increasing the difficulty of testing and affecting the efficiency and accuracy of the operation. In terms of probe replacement, inaccurate interface alignment can easily lead to data interruption. Therefore, a non-destructive testing equipment for underground pipeline corrosion inspection will be used to solve these problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a non-destructive testing device for underground pipeline corrosion detection, aiming to improve the problems of low operating efficiency and accuracy caused by inconvenient handle angle adjustment and data interruption caused by unreliable interface connection when replacing the probe in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A non-destructive testing device for corrosion detection of buried pipelines includes an equipment compartment one, an equipment compartment two fixedly connected to the bottom of the equipment compartment one, a connecting block fixedly connected to the top right side of the equipment compartment one, a rotating groove opened on the right side of the connecting block, a rotating shaft rotatably connected inside the right side of the connecting block, a ratchet fixedly connected to the outer periphery of the rotating shaft, a hand handle abutting against the inside of the right side of the connecting block, a rotating chamber opened inside the right side of the hand handle, a pawl rotatably connected inside the right side of the hand handle, springs fixedly connected to the front and rear of the bottom of the pawl, a pull rod fixedly connected to the bottom of the pawl, and a display fixedly connected to the left side of the hand handle.

[0007] As a further description of the above technical solution:

[0008] A threaded pipe is fixedly connected to the bottom of the second equipment compartment, a permanent magnet ring is fixedly connected to the bottom of the second equipment compartment, a fixed ring is fixedly connected to the inner circumference of the permanent magnet ring, an electrical contact is fixedly connected to the bottom of the second equipment compartment, a threaded connecting rod is threadedly connected to the bottom of the threaded pipe, a permanent magnet ring is fixedly connected to the top of the threaded connecting rod, and an electrical contact is fixedly connected to the top of the threaded connecting rod.

[0009] As a further description of the above technical solution:

[0010] A probe head is fixedly connected to the bottom of the threaded connecting rod, and probe contacts are fixedly connected to both the left and right sides of the bottom of the probe head;

[0011] As a further description of the above technical solution:

[0012] The first permanent magnet ring abuts against the top of the second permanent magnet ring, and the electrical contact abuts against the bottom of the electrical contact point;

[0013] As a further description of the above technical solution:

[0014] The other end of the spring is fixedly connected to the inside of the hand grip, and the ratchet is slidably connected to the right side of the inside of the hand grip;

[0015] As a further description of the above technical solution:

[0016] The pawl is rotatably connected inside the rotating chamber, and the pawl abuts against the outside of the ratchet.

[0017] As a further description of the above technical solution:

[0018] The pull rod is slidably connected inside the rotating chamber;

[0019] As a further description of the above technical solution:

[0020] The probe has a conical structure.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the angle adjustment mechanism composed of a ratchet, pawl, spring, and pull rod effectively improves the inconvenience of operating a fixed-angle handle in traditional equipment. When it is necessary to adjust the angle of the hand grip, simply pull the pull rod to disengage the pawl from the ratchet. The angle can then be adjusted within a 180-degree range through the rotating groove and the rotating shaft. After releasing the pull rod, the spring drives the pawl to reset and engage with the ratchet tooth groove, thus locking the angle. This design allows operators to flexibly adjust the handle angle according to the testing scenario, improving the accuracy of the testing and the efficiency of the operation.

[0023] 2. In this utility model, the rapid and accurate docking of the probe head is achieved through the cooperation of permanent magnet ring one, permanent magnet ring two, electrical contacts, and electrical contacts. When the threaded connecting rod is connected to the equipment compartment two through the threaded tube, the annular magnetic attraction structure of permanent magnet ring one and permanent magnet ring two can automatically complete radial positioning. At the same time, the electrical contacts and electrical contacts form elastic contact, ensuring stable signal transmission, effectively avoiding data interruption, and ensuring the integrity and reliability of the detection data. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a non-destructive testing device for detecting corrosion of buried pipelines according to the present invention.

[0025] Figure 2 This is a schematic diagram of the connecting block of a non-destructive testing device for corrosion detection of buried pipelines proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the ratchet structure of a non-destructive testing device for corrosion detection of buried pipelines proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the threaded connecting rod of a non-destructive testing device for corrosion detection of buried pipelines proposed in this utility model.

[0028] Figure 5 This is a schematic diagram of the probe of a non-destructive testing device for detecting corrosion of buried pipelines proposed in this utility model.

[0029] Legend:

[0030] 1. Equipment compartment one; 2. Equipment compartment two; 3. Hand grip; 4. Connecting block; 5. Rotating groove; 6. Rotating compartment; 7. Rotating shaft; 8. Ratchet; 9. Pawl; 10. Spring; 11. Pull rod; 12. Threaded tube; 13. Permanent magnet ring one; 14. Fixing ring; 15. Electrical contact; 16. Probe head; 17. Probe contact; 18. Threaded connecting rod; 19. Permanent magnet ring two; 20. Electrical contact; 21. Display. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-5This utility model provides an embodiment of a non-destructive testing device for detecting corrosion in buried pipelines, comprising a first equipment compartment 1, which contains an integrated signal processing circuit and a power module to provide power and data processing capabilities to the device. A second equipment compartment 2 is fixedly connected to the bottom of the first equipment compartment 1, which contains a signal amplification circuit and a wireless transmission module to enhance the detection signal and enable remote data transmission. A connecting block 4 is fixedly connected to the top right side of the first equipment compartment 1, providing a rotating support structure for the handheld handle 3. A rotating groove 5 is provided on the right side of the connecting block 4 to ensure smooth rotation. A rotating shaft 7 is rotatably connected to the right side of the connecting block 4, serving as a support for rotation. The support component has a ratchet 8 fixedly connected to the outer periphery of the rotating shaft 7. The right side of the connecting block 4 is abutted against the hand grip 3, which facilitates the operator to grasp and move the equipment. The right side of the hand grip 3 has a rotating chamber 6, which provides installation space for its internal components. The right side of the hand grip 3 is rotatably connected to a pawl 9, which is rotated and locked by the ratchet 8 and the pawl 9. The bottom of the pawl 9 is fixedly connected to springs 10 at both the front and rear, which realize the self-locking function of the pawl 9. The bottom of the pawl 9 is fixedly connected to a pull rod 11, which can release the locked state of the pawl 9. The left side of the hand grip 3 is fixedly connected to a display 21, which is mainly used to display the detection data.

[0033] Reference Figure 4 and Figure 5 In one embodiment of this utility model: a threaded tube 12 is fixedly connected to the bottom of the equipment compartment 2, providing a stable and reliable connection; a permanent magnet ring 13 is fixedly connected to the bottom of the equipment compartment 2, and a fixing ring 14 is fixedly connected to the inner circumference of the permanent magnet ring 13; an electrical contact 15 is fixedly connected to the bottom of the equipment compartment 2; a threaded connecting rod 18 is threadedly connected to the bottom of the threaded tube 12, and the threaded connecting rod 18 and the threaded tube 12 cooperate to achieve a threaded connection; a permanent magnet ring 19 is fixedly connected to the top of the threaded connecting rod 18, and the permanent magnet ring 13 abuts against the permanent magnet ring 19. At the top, permanent magnet ring 13 and permanent magnet ring 19 enable rapid positioning. An electrical contact 20 is fixedly connected to the top of the threaded connecting rod 18. The electrical contact 20 abuts against the bottom of the electrical contact 15. The electrical contact 15 and the electrical contact 20 cooperate to form a reliable electrical connection. A probe head 16 is fixedly connected to the bottom of the threaded connecting rod 18. The probe head 16 integrates a signal sensor. Probe contacts 17 are fixedly connected to the left and right sides of the bottom of the probe head 16. The probe contacts 17 are responsible for transmitting the release signal to the probe head 16. The probe contacts 17 have a conical structure.

[0034] Reference Figure 3 and Figure 5In one embodiment of this utility model: the other end of the spring 10 is fixedly connected to the inside of the hand grip 3 to realize the positioning and reset functions of the spring 10; the ratchet 8 is slidably connected to the right side inside the hand grip 3 to ensure that the ratchet 8 can rotate inside it; the pawl 9 is rotatably connected to the rotating chamber 6 and abuts against the outside of the ratchet 8; the pawl 9 cooperates with the ratchet 8 to realize the function of free rotation; the pull rod 11 is slidably connected to the rotating chamber 6 and the pull rod 11 can slide along the structure of the rotating chamber 6.

[0035] Working principle: When the angle of the handgrip 3 needs to be adjusted, the operator pulls down the lever 11, causing the pawl 9 to rotate up and down against the preload of the spring 10. This disengages the pawl 9 from the tooth groove of the ratchet 8, releasing the angle lock. At this time, the rotating shaft 7 can rotate freely in the rotating groove 5, allowing the handgrip 3 to adjust its angle within a 180-degree range around the rotating shaft 7 according to the detection requirements. After the angle adjustment is completed, the lever 11 is released, and the spring 10 drives the pawl 9 to reset. Its head engages with the corresponding tooth groove of the ratchet 8. Utilizing the one-way meshing characteristic of the ratchet 8 teeth, the handgrip 3 is stably locked at the target angle. This process requires no tools and can be completed with one hand, ensuring that the probe 17 is always perpendicular to the pipe surface, thus ensuring efficient acquisition of electromagnetic and ultrasonic signals.

[0036] When the probe head 16 needs to be replaced, first align the threaded connecting rod 18 with the threaded tube 12. The permanent magnet ring 13 and the permanent magnet ring 19 generate radial magnetic attraction force through the attraction of opposite poles, automatically correcting the center deviation between the two and ensuring that the electrical contact 20 and the electrical contact 15 are accurately aligned. Then, rotate the threaded connecting rod 18 clockwise, and its external thread quickly engages with the internal thread of the threaded tube 12 to form a mechanical lock. At this time, the electrical contact 20 is in close contact with the electrical contact 15 under the action of magnetic attraction and thread preload, establishing a stable electrical connection and realizing the transmission of detection signals. When disassembling, rotate the threaded connecting rod 18 in the opposite direction to release the mechanical lock. The magnetic positioning eliminates the manual alignment error and improves the reliability of signal transmission.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A non-destructive testing device for corrosion detection of buried pipelines, comprising an equipment compartment (1), characterized in that: Equipment compartment one (1) is fixedly connected to equipment compartment two (2) at the bottom. Equipment compartment one (1) is fixedly connected to the top right side of ...

2. The non-destructive testing equipment for corrosion detection of buried pipelines according to claim 1, characterized in that: The bottom of the equipment compartment 2 (2) is fixedly connected to a threaded pipe (12), the bottom of the equipment compartment 2 (2) is fixedly connected to a permanent magnet ring 1 (13), the inner circumference of the permanent magnet ring 1 (13) is fixedly connected to a fixing ring (14), the bottom of the equipment compartment 2 (2) is fixedly connected to an electrical contact (15), the bottom of the threaded pipe (12) is threadedly connected to a threaded connecting rod (18), the top of the threaded connecting rod (18) is fixedly connected to a permanent magnet ring 2 (19), and the top of the threaded connecting rod (18) is fixedly connected to an electrical contact (20).

3. The non-destructive testing equipment for corrosion detection of buried pipelines according to claim 2, characterized in that: The bottom of the threaded connecting rod (18) is fixedly connected to a probe head (16), and probe contacts (17) are fixedly connected to the left and right sides of the bottom of the probe head (16).

4. The non-destructive testing equipment for corrosion detection of buried pipelines according to claim 2, characterized in that: The first permanent magnet ring (13) abuts against the top of the second permanent magnet ring (19), and the electrical contact (20) abuts against the bottom of the electrical contact (15).

5. The non-destructive testing equipment for corrosion detection of buried pipelines according to claim 1, characterized in that: The other end of the spring (10) is fixedly connected to the inside of the hand grip (3), and the ratchet (8) is slidably connected to the right side inside the hand grip (3).

6. The non-destructive testing equipment for corrosion detection of buried pipelines according to claim 1, characterized in that: The pawl (9) is rotatably connected inside the rotating chamber (6), and the pawl (9) abuts against the outside of the ratchet (8).

7. The non-destructive testing equipment for corrosion detection of buried pipelines according to claim 1, characterized in that: The pull rod (11) is slidably connected inside the rotating chamber (6).

8. The non-destructive testing equipment for corrosion detection of buried pipelines according to claim 3, characterized in that: The probe (17) has a conical structure.

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