Pipe potential testing device

Abstract

The utility model belongs to pipeline safety technical field discloses a pipeline potential testing arrangement. The pipeline potential testing arrangement includes walking stick, sleeve and adjusting mechanism. Among them, the one end of walking stick is installed with multimeter, sleeve is arranged in the other end of walking stick and is equipped with test electrode in the one end of sleeve away from walking stick, and test electrode is electrically connected with multimeter, adjusting mechanism is set up on walking stick and is connected with sleeve, is used for adjusting the length of sleeve that stretches out walking stick. The pipeline potential testing arrangement integrates multimeter and test electrode for potential testing in walking stick, greatly reduces the tool that carries when the tour examines, and, the length of sleeve that stretches out walking stick is adjusted through adjusting mechanism, and then realizes the adjustment of the length of test electrode that stretches out, can satisfy the use demand of a variety of tour examines environment, and the universality is higher, also is favorable for the improvement test efficiency and the accuracy of test result.

Description

Technical Field

[0001] This utility model relates to the field of pipeline safety technology, and in particular to a pipeline potential testing device. Background Technology

[0002] The oil and gas pipeline potential testing device is a device specifically designed to monitor and evaluate the effectiveness of cathodic protection systems for buried oil and gas pipelines. Cathodic protection is a technology used to prevent corrosion of metal pipelines by using the pipeline as the cathode in an electrochemical circuit to reduce or prevent corrosion.

[0003] Existing oil and gas pipeline potential testing devices that integrate potential testing components into a cane can reduce the number of tools needed for testing and facilitate inspection. However, the extension length of the copper sulfate electrode used for testing relative to the cane is not adjustable, making it difficult to meet the needs of different pipeline inspection environments and affecting the testing results and efficiency.

[0004] Therefore, there is an urgent need to develop a pipeline potential testing device to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a pipeline potential testing device that integrates the components for potential testing into a walking stick. The extension length of the test electrode relative to the walking stick is adjustable, which meets the usage requirements of various inspection environments, has high versatility, and is also conducive to improving testing efficiency and the accuracy of test results.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Pipeline potential testing device, including:

[0008] A walking stick, one end of which is equipped with a multimeter;

[0009] A sleeve is slidably disposed at the other end of the cane, and a test electrode is provided at the end of the sleeve away from the cane, and the test electrode is electrically connected to the multimeter;

[0010] An adjustment mechanism is provided on the cane and connected to the sleeve, for adjusting the length of the sleeve extending out of the cane.

[0011] Optionally, the adjustment mechanism includes:

[0012] A connector is installed on the outer peripheral wall of the sleeve, and the connector is provided with a threaded hole extending along the sliding direction of the sleeve;

[0013] A screw, one end of which is connected to the connector through the threaded hole;

[0014] A drive assembly is disposed on the outer peripheral wall of the cane, and the output end of the drive assembly is connected to the screw for driving the screw to rotate around its own axis.

[0015] Optionally, the driving component includes:

[0016] An annular shell is fitted over the cane, and the annular shell and the outer peripheral wall of the cane form an annular mounting cavity;

[0017] A drive gear is sleeved on the outside of the cane and located inside the annular mounting cavity; the drive gear is capable of rotating relative to the cane.

[0018] A drive gear is disposed within the annular mounting cavity and meshes with the driving gear.

[0019] A driving component is disposed outside the annular shell. The output shaft of the driving component rotatably passes through the annular shell and is connected to the power gear, for driving the power gear to rotate.

[0020] The driven gear is disposed in the annular mounting cavity and meshes with the driving gear. The other end of the screw rotatably passes through the annular shell, and the end of the screw that extends into the annular mounting cavity is connected to the driven gear.

[0021] Optionally, the sleeve is provided with connecting members on both sides in the radial direction, each connecting member is provided with a screw, and each screw is provided with a driven gear.

[0022] Optionally, the drive component is provided with a protective cover.

[0023] Optionally, a controller is installed on the outer peripheral wall of the cane. The controller is communicatively connected to both the drive unit and the multimeter. The controller is used to control the operation of the drive unit and record the measurement results.

[0024] Optionally, the cane has two first mounting protrusions spaced apart along the extension direction of the screw on its outer peripheral wall near the screw, a guide rod is provided between the two first mounting protrusions, and the connector has a second mounting protrusion, the guide rod slidingly passing through the second mounting protrusion.

[0025] Optionally, the connector includes a connecting lug and a connecting cylinder. The connecting lug is connected to the sleeve, and the connecting cylinder is disposed on the connecting lug. The inner peripheral wall of the connecting cylinder is provided with an internal thread to form the threaded hole.

[0026] Optionally, the other end of the cane is provided with an annular groove around its circumference, and one end of the sleeve is slidably connected to the annular groove. Along the radial direction of the cane, the two opposite groove walls of the annular groove are slidably attached to the inner and outer peripheral walls of the sleeve, respectively.

[0027] Optionally, the cane has handles on both opposite sides in the radial direction.

[0028] The beneficial effects of this utility model are:

[0029] This invention provides a pipeline potential testing device, including a cane, a sleeve, and an adjustment mechanism. The multimeter and test electrodes used for testing are respectively mounted on the cane and the sleeve, reducing the number of tools required and providing convenience for daily patrols.

[0030] The length of the sleeve extending from the cane can be adjusted by the adjustment mechanism, thereby adjusting the length of the test electrode extending from the cane on the sleeve. This allows the operator to adjust the position of the test electrode according to the inspection environment, thus ensuring the efficiency of the testing work and the accuracy of the test results. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of the pipeline potential testing device provided in this embodiment of the utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the walking stick provided in this embodiment of the utility model;

[0034] Figure 3 This is a schematic diagram of the pipeline potential testing device provided in this embodiment of the present invention with part of the annular shell hidden;

[0035] Figure 4 This is an assembly diagram of the adjustment mechanism and sleeve provided in this embodiment of the utility model.

[0036] In the picture:

[0037] 100. Cane; 110. Annular groove; 120. Handle; 130. First mounting protrusion; 140. Guide rod;

[0038] 200. Multimeter;

[0039] 300, Sleeve;

[0040] 400. Test electrode;

[0041] 500. Adjustment mechanism; 510. Connector; 511. Connecting ear; 512. Connecting cylinder; 5121. Second mounting protrusion; 520. Screw; 530. Drive assembly; 531. Annular shell; 5311. Annular mounting cavity; 532. Drive gear; 533. Power gear; 534. Drive component; 535. Driven gear; 536. Protective cover; 540. Controller. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0043] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0046] This embodiment provides a pipeline potential testing device that integrates the components for potential testing into a walking stick, and the extension length of the test electrode relative to the walking stick is adjustable, meeting the usage requirements of various inspection environments. It has high versatility and is also conducive to improving testing efficiency and the accuracy of test results.

[0047] Specifically, such as Figure 1 As shown, the pipeline potential testing device includes a cane 100, a sleeve 300, and an adjusting mechanism 500. A multimeter 200 is mounted on one end of the cane 100. The sleeve 300 is slidably disposed at the other end of the cane 100, and a test electrode 400 is located at the end of the sleeve 300 away from the cane 100, which is electrically connected to the multimeter 200. The adjusting mechanism 500 is disposed on the cane 100 and connected to the sleeve 300, and is used to adjust the length of the sleeve 300 extending beyond the cane 100.

[0048] The method of using this pipeline potential testing device is as follows:

[0049] The operator holds a cane 100 and controls the adjustment mechanism 500 to adjust the length of the sleeve 300 extending from the cane 100 according to the position of the test electrode 400 relative to the ground, so that the test electrode 400 contacts the soil and performs potential measurement.

[0050] The pipeline potential testing device provided in this embodiment adjusts the length of the sleeve 300 extending beyond the cane 100 via the adjusting mechanism 500. This allows for adjustment of the length of the test electrode 400 extending beyond the cane 100, enabling the operator to adjust the position of the test electrode 400 according to the inspection environment, thereby ensuring the efficiency of the testing work and the accuracy of the test results. Furthermore, by mounting the multimeter 200 and the test electrode 400 on the cane 100 and sleeve 300 respectively, the number of tools required is reduced, providing convenience for daily inspections.

[0051] Understandably, the test electrode 400 is generally a copper sulfate electrode.

[0052] Optionally, the cane 100 has a hollow structure, and the electrical connection wires between the multimeter 200 and the test electrode 400 can be arranged inside the cane 100 to protect the wires, while also making the pipe potential testing device more concise and aesthetically pleasing.

[0053] Optionally, such as Figure 2As shown, the other end of the walking stick 100 has an annular groove 110 surrounding its circumference. One end of the sleeve 300 is slidably connected to the annular groove 110. Along the radial direction of the walking stick 100, the two opposite groove walls of the annular groove 110 are slidably attached to the inner and outer circumferential walls of the sleeve 300, respectively. The sliding connection between the sleeve 300 and the walking stick 100 is achieved through the cooperation of the annular groove 110 and the sleeve 300. The structure is simple and can limit the movement of the sleeve 300 along the radial direction of the walking stick 100, thus improving the smoothness of the sliding of the sleeve 300.

[0054] Understandably, the sliding stroke of the sleeve 300 can be controlled by designing the depth of the annular groove 110 along the axial direction of the cane 100.

[0055] Optionally, see [link to relevant documentation] Figure 1 and Figure 2 The cane 100 has handles 120 on both opposite sides in the radial direction. The handles 120 make it easier for the operator to hold the cane 100, thus facilitating testing.

[0056] Further, see also Figure 1 The adjusting mechanism 500 includes a connector 510, a screw 520, and a drive assembly 530. The connector 510 is mounted on the outer peripheral wall of the sleeve 300 and has a threaded hole extending along the sliding direction of the sleeve 300. One end of the screw 520 is connected to the connector 510 through the threaded hole. The drive assembly 530 is disposed on the outer peripheral wall of the cane 100, and its output end is connected to the screw 520 to drive the screw 520 to rotate around its own axis.

[0057] For example, if it is necessary to adjust the extension of the test electrode 400 relative to the cane 100, the control drive assembly 530 drives the screw 520 to rotate in the first rotation direction. The rotation of the screw 520 will cause the connector 510 to move away from the screw 520. The movement of the connector 510 away from the screw 520 will cause the sleeve 300 connected to it to move away from the cane 100. The movement of the sleeve 300 away from the cane 100 will cause the test electrode 400 disposed on it to move away from the cane 100.

[0058] Conversely, if it is necessary to adjust the retraction of the test electrode 400 relative to the cane 100, the drive assembly 530 can be used to drive the screw 520 to rotate in the second rotation direction. The first rotation direction is opposite to the first rotation direction.

[0059] The length of the test electrode 400 extending beyond the cane 100 is adjusted by the cooperation of the screw 520 and the connector 510. The adjustment accuracy is high, which helps to improve the measurement accuracy and the reliability of the test results. Furthermore, it enables the automation of the position adjustment of the test electrode 400, making adjustment convenient.

[0060] Optionally, see [link to relevant documentation] Figure 1 In one possible embodiment, the connector 510 includes a connecting lug 511 and a connecting cylinder 512. The connecting lug 511 is connected to the sleeve 300, and the connecting cylinder 512 is disposed on the connecting lug 511. The inner peripheral wall of the connecting cylinder 512 is provided with internal threads to form a threaded hole. This connector 510 has a simple structure and is easy to process and assemble.

[0061] Further, see also Figure 1 On the outer peripheral wall of the cane 100 near the screw 520, there are two first mounting protrusions 130 spaced apart along the extension direction of the screw 520. A guide rod 140 is provided between the two first mounting protrusions 130. The connector 510 is provided with a second mounting protrusion 5121, and the guide rod 140 slides through the second mounting protrusion 5121. The guide rod 140 is fixed by the two first mounting protrusions 130, which is simple in structure and easy to assemble. The sliding engagement of the guide rod 140 and the second mounting protrusion 5121 can guide the sliding of the sleeve 300 relative to the cane 100, which helps to improve the smoothness of the movement of the sleeve 300.

[0062] Furthermore, such as Figure 1 , Figure 3 and Figure 4 As shown, the drive assembly 530 includes an annular housing 531, a drive gear 532, a power gear 533, a drive member 534, and a driven gear 535. The annular housing 531 is fitted over the cane 100, and the annular housing 531 and the outer peripheral wall of the cane 100 form an annular mounting cavity 5311. The drive gear 532 is fitted over the cane 100 and located within the annular mounting cavity 5311, and the drive gear 532 is rotatable relative to the cane 100. The power gear 533 is disposed within the annular mounting cavity 5311 and meshes with the drive gear 532. The drive member 534 is disposed outside the annular housing 531, and the output shaft of the drive member 534 rotatably passes through the annular housing 531 and is connected to the power gear 533, for driving the power gear 533 to rotate. Driven gear 535 is disposed in an annular mounting cavity 5311 and meshes with driving gear 532. The other end of screw 520 is rotatably inserted through an annular shell 531, and the end of screw 520 extending into an annular mounting cavity 5311 is connected to driven gear 535.

[0063] The working principle of the driver component 530 is as follows:

[0064] When the drive unit 534 is activated, the output shaft of the drive unit 534 will drive the power gear 533 to rotate. The rotation of the power gear 533 will drive the drive gear 532 meshing with it to rotate. The rotation of the drive gear 532 will drive the driven gear 535 meshing with it to rotate. The rotation of the driven gear 535 will drive the screw 520 connected to it to rotate. The rotation of the screw 520 will cause the sleeve 300 to slide relative to the cane 100.

[0065] By controlling the forward and reverse rotation of the output shaft of the drive component 534, the extension length of the sleeve 300 relative to the cane 100 can be adjusted, thereby adjusting the position of the test electrode 400, which is convenient to control. Furthermore, the rotation of the screw 520 is achieved through gear transmission, resulting in a simple structure, stable and reliable force transmission, and high control precision.

[0066] By setting the annular shell 531, it can not only fix the screw 520, driven gear 535, driving gear 532 and power gear 533, but also protect the screw 520, driven gear 535, driving gear 532 and power gear 533, and make the appearance of the pipeline potential testing device more aesthetically pleasing.

[0067] Optionally, a through hole can be made at the bottom of the annular shell 531, and a bearing can be installed in the through hole to connect the screw 520 to the inner ring of the bearing. This arrangement can not only reliably fix the screw 520, but also ensure the smooth rotation of the screw 520.

[0068] Optionally, see [link to relevant documentation] Figure 1 , Figure 3 and Figure 4 The sleeve 300 has connecting parts 510 on both sides in the radial direction. Each connecting part 510 is provided with a screw 520, and each screw 520 is provided with a driven gear 535. This arrangement helps to improve the uniformity of force on the sleeve 300, thereby improving the smoothness of the sliding of the sleeve 300 relative to the cane 100.

[0069] Optionally, in this embodiment, the sleeve 300 has connecting members 510 on both sides in the radial direction, each connecting member 510 is provided with a screw 520, and each screw 520 is provided with a driven gear 535. Furthermore, each screw 520 is provided with a guide rod 140.

[0070] Understandably, the drive unit 534 is optional but not limited to a motor.

[0071] Further, see also Figure 1 The drive component 534 is equipped with a protective cover 536. By providing the protective cover 536, moisture, dust, and other impurities can be effectively prevented from entering the drive component 534, thus improving the reliability of its operation. Furthermore, it provides physical protection for the drive component 534, preventing it from being subjected to collisions or other mechanical damage during operation.

[0072] Further, see also Figure 1 and Figure 3A controller 540 is mounted on the outer peripheral wall of the cane 100. The controller 540 is communicatively connected to the drive unit 534 and is used to control the operation of the drive unit 534. By integrating the controller 540 onto the cane 100, the operator can easily access and control the pipeline potential testing device without having to carry or search for an additional control unit, greatly improving operational efficiency and convenience.

[0073] To facilitate understanding, the working process of this pipeline potential testing device is briefly described below:

[0074] When the pipeline potential testing device is in standby mode, the sleeve 300 drives the test electrode 400 to the position closest to the cane 100, and the drive component 534 is not activated at this time.

[0075] When the position of the test electrode 400 needs to be adjusted for potential testing, the operator can issue a command through the controller 540 to activate the drive unit 534. After the drive unit 534 is activated, its output shaft drives the power gear 533 to rotate. The rotation of the power gear 533 will drive the drive gear 532 meshing with it to rotate. The rotation of the drive gear 532 will drive the driven gear 535 meshing with it to rotate. The rotation of the driven gear 535 will drive the screw 520 connected to it to rotate. The rotation of the screw 520 will cause the connecting cylinder 512 to slide along the guide rod 140. The sliding of the connecting cylinder 512 will cause the sleeve 300 connected to it to slide. The sliding of the sleeve 300 will cause the test electrode 400 on it to move. When the test electrode 400 is adjusted to the correct position, the operator can issue a command through the controller 540 to shut down the drive unit 534.

[0076] After the test electrode 400 is moved into position, the multimeter 200 connected to the test electrode 400 starts working, monitoring and recording the potential change of the pipeline relative to the electrolyte (usually soil) in real time, and transmitting the measurement results to the controller 540 for recording, so that the operator can view them.

[0077] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A pipeline potential testing device, characterized in that, include: A walking stick (100), one end of which is fitted with a multimeter (200); A sleeve (300) is slidably disposed at the other end of the cane (100). A test electrode (400) is provided at the end of the sleeve (300) away from the cane (100). The test electrode (400) is electrically connected to the multimeter (200). An adjustment mechanism (500) is provided on the cane (100) and connected to the sleeve (300) for adjusting the length of the sleeve (300) extending out of the cane (100).

2. The pipeline potential testing device according to claim 1, characterized in that, The adjustment mechanism (500) includes: A connector (510) is installed on the outer peripheral wall of the sleeve (300), and the connector (510) is provided with a threaded hole extending along the sliding direction of the sleeve (300); A screw (520), one end of which is connected to the connector (510) through the threaded hole; A drive assembly (530) is disposed on the outer peripheral wall of the cane (100). The output end of the drive assembly (530) is connected to the screw (520) and is used to drive the screw (520) to rotate around its own axis.

3. The pipeline potential testing device according to claim 2, characterized in that, The drive component (530) includes: An annular shell (531) is fitted over the cane (100), and the annular shell (531) and the outer peripheral wall of the cane (100) form an annular mounting cavity (5311); The drive gear (532) is sleeved on the outside of the cane (100) and located in the annular mounting cavity (5311). The drive gear (532) is capable of rotating relative to the cane (100). A drive gear (533) is disposed in the annular mounting cavity (5311) and meshes with the drive gear (532); A drive unit (534) is disposed outside the annular shell (531). The output shaft of the drive unit (534) is rotatably inserted through the annular shell (531) and connected to the power gear (533) for driving the power gear (533) to rotate. The driven gear (535) is disposed in the annular mounting cavity (5311) and meshes with the driving gear (532). The other end of the screw (520) is rotatably inserted through the annular shell (531). The end of the screw (520) that extends into the annular mounting cavity (5311) is connected to the driven gear (535).

4. The pipeline potential testing device according to claim 3, characterized in that, The sleeve (300) has connecting members (510) on both sides in the radial direction. Each connecting member (510) is provided with a screw (520), and each screw (520) is provided with a driven gear (535).

5. The pipeline potential testing device according to claim 3, characterized in that, The drive component (534) is covered with a protective cover (536).

6. The pipeline potential testing device according to claim 3, characterized in that, A controller (540) is installed on the outer peripheral wall of the cane (100). The controller (540) is communicatively connected to the drive unit (534) and the multimeter (200). The controller (540) is used to control the operation of the drive unit (534) and record the measurement results.

7. The pipeline potential testing device according to claim 2, characterized in that, On the outer peripheral wall of the cane (100) near the screw (520), there are two first mounting protrusions (130) spaced apart along the extension direction of the screw (520). A guide rod (140) is provided between the two first mounting protrusions (130). A second mounting protrusion (5121) is provided on the connector (510). The guide rod (140) slides through the second mounting protrusion (5121).

8. The pipeline potential testing device according to claim 2, characterized in that, The connector (510) includes a connecting lug (511) and a connecting cylinder (512). The connecting lug (511) is connected to the sleeve (300). The connecting cylinder (512) is disposed on the connecting lug (511). The inner peripheral wall of the connecting cylinder (512) is provided with an internal thread to form the threaded hole.

9. The pipeline potential testing device according to any one of claims 1-8, characterized in that, The other end of the walking stick (100) is provided with an annular groove (110) around its circumference. One end of the sleeve (300) is slidably connected to the annular groove (110). Along the radial direction of the walking stick (100), the two opposite groove walls of the annular groove (110) are respectively slidably attached to the inner and outer peripheral walls of the sleeve (300).

10. The pipeline potential testing device according to any one of claims 1-8, characterized in that, The cane (100) has handles (120) on both opposite sides in the radial direction.

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