A stray current detector for buried steel pipes

Abstract

The invention relates to the technical field of stray current detection equipment, and discloses a buried steel pipe stray current detector, comprising a box body, a partition is installed inside the box body, a driving plate body is installed on the partition body, a support frame is fixedly installed inside the partition body, a fixed frame body is installed inside the partition body, a water storage bucket is installed on the fixed frame body, a limiting sleeve is arranged inside the partition body, a driving shaft body is arranged inside the limiting sleeve, a limiting frame body is fixedly installed at the end of the driving shaft body, and an action rod frame is symmetrically installed on the limiting frame body. In this buried steel pipe stray current detector, the driving shaft body drives the action rod frame to rise and rotate through the cooperation of the sliding shaft body and the spiral groove thereon, so that the end cover of the copper sulfate reference electrode leaves the body, and under the action of the moving block, the clamping sleeve on the lifting panel drives the end of the output pipe to enter the inside of the copper sulfate reference electrode, so as to achieve the purpose of injecting pure water into the inside of the copper sulfate reference electrode.

Description

Technical Field

[0001] The invention relates to the technical field of stray current detection equipment, in particular to a buried steel pipe stray current detector. Background Art

[0002] With the advancement of science and technology and the increasing degree of urbanization in my country, the demand for pipelines has increased. Most pipelines, rail transit and transmission lines are built underground, and they will inevitably cross or run in parallel to interfere with each other. The train obtains electricity from the contact network, and the traction current returns to the negative pole of the rectifier unit of the traction substation through the running rails. The running rails become the return path of the traction current. In the DC traction system, the current usually flows in the specified conductor according to the set requirements, but due to some reasons, part of the current does not flow in the specified conductor. This current flowing outside the specified path is called stray current; electrolysis will occur where the stray current flows out of the metal body. This electrolysis phenomenon will increase the temperature of the metal body and accelerate the electrochemical corrosion of the metal body. Under the action of long-term stray current, the stray current will cause serious corrosion damage to metal components, resulting in rapid perforation and leakage of water pipes, rust, sparking of cable hooks, rust and breakage of spikes, etc. In severe cases, pipeline leakage may occur and the life of subway facilities will be reduced, causing huge economic losses. Therefore, operators need to regularly detect stray currents in buried pipelines to avoid the above phenomenon;

[0003] In the process of stray current detection of buried pipelines, the staff first needs to bury the test piece in the soil and pour in an appropriate amount of clean water, open the sealed door of the test pile with a key, and connect the other end of the test piece to the pipeline test line with a nut, insert the red test lead of the multimeter into the magnetic switch (black hole), and the black test lead is connected to the copper sulfate reference electrode, then rotate the knob switch of the multimeter to the DC gear, turn on the multimeter switch to start measuring. In the actual measurement process, it is often necessary to unscrew the end cover of the copper sulfate reference, pour pure water (or distilled water) into the inside, and then insert the copper sulfate reference into the soil. The reason for injecting water into the copper sulfate reference is: the working principle of the copper sulfate reference electrode is to generate an electrical signal based on the change of dissolved oxygen concentration, and water can maintain the concentration of dissolved oxygen in the copper sulfate reference electrode stable, ensuring the normal operation of the electrode;

[0004] Since buried pipelines are suitable for various fields (including construction sites, railway tracks, etc.), when buried pipeline stray current detection is carried out in a dusty environment, impurities in the external environment are easily introduced into the copper sulfate reference during the unscrewing and water injection process of the end cap of the copper sulfate reference, and are easily chemically reacted with the internal copper sulfate to produce impurities in the solution, thereby affecting the detection effect of the stray current. For this reason, we propose a buried steel pipe stray current detector. Summary of the invention

[0005] The object of the present invention is to provide a buried steel pipe stray current detector to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a buried steel pipe stray current detector, comprising a box body, a multimeter located inside the box body, a partition slidably connected to the inner wall of the box body is installed inside the box body, a driving plate body slidably connected to the inner wall of the box body is installed on the partition body, and a support frame is fixedly installed inside the partition body, and the support frame is used to fix the copper sulfate reference electrode, a fixed frame body is also fixedly installed inside the partition body, and a water storage bucket is installed on the fixed frame body, a limiting sleeve is arranged inside the partition body, and a driving plate body slidably connected to the inner wall of the box body is installed on the partition body, and a driving plate body slidably connected to the inner wall of the box body is installed on the partition body, and a supporting frame is fixedly installed inside the partition body, and a water storage bucket is installed on the fixed frame body, and a limiting sleeve is arranged inside the partition body, and a driving plate body slidably connected to the inner wall of the box body is installed on ... A connecting frame is fixedly installed on the inner wall of the driving plate body, and the connecting frame is fixedly connected to the inner wall of the limiting sleeve, a driving shaft body is arranged inside the limiting sleeve, a limiting frame is fixedly installed on the end of the driving shaft body, and an action rod frame symmetrically installed on the limiting frame body in sliding connection with it, wherein the action rod frame is used to contact the end cover of the copper sulfate reference, a sliding shaft body is installed on the driving shaft body, and a sliding groove and a spiral groove connected to the sliding groove are arranged on the inner wall of the limiting sleeve, and the sliding shaft body slides in the sliding groove and the spiral groove in a limited position;

[0007] An output pipe is installed on the water storage bucket, a guide rail is fixedly installed on the fixed frame, and a driving member slidably connected to the guide rail is installed on the guide rail, and the driving member is used to fix the output pipe. A magnetic panel is also installed on the driving member, and an annular electromagnetic panel is fixedly installed on the fixed frame, and the annular electromagnetic panel generates a repulsive force on the magnetic panel when energized, and a plurality of reset springs are connected between the driving member and the guide rail.

[0008] Preferably, each of the action rod frames is equipped with an extension rod frame, the extension rod frame passes through the inner wall of the limiting frame and is slidably connected thereto, a fixed sleeve is fixedly installed at one end of the extension rod frame, and a sphere is installed inside the fixed sleeve, and the sphere rotates within the fixed sleeve.

[0009] Preferably, a plurality of connecting sleeves are symmetrically installed on the limit frame, a plurality of through-axis bodies are installed on each of the action rod frames, and one end of the through-axis body is located inside the connecting sleeve, and a circular panel is fixedly installed on the end, and a spring body is connected between the circular panel and the inner wall of the connecting sleeve.

[0010] Preferably, the outer wall of the limiting sleeve is provided with a vertical groove body and an annular groove body, the annular groove body is located above the vertical groove body, the vertical groove body and the annular groove body are in a connected state, the annular groove body is close to the axis of the limiting sleeve relative to the vertical groove body, and the intersection of the vertical groove body and the annular groove body is in an arc shape.

[0011] Preferably, a circular groove body is provided on one side of the driving plate body, and a rotating shaft body is installed on the circular groove body, the end of the rotating shaft body passes through the inner wall of the circular groove body and extends to the other side of the driving plate body, an annular disk frame is fixedly installed on the other side of the partition, and a clockwork mechanism is installed inside the annular disk frame, the clockwork mechanism is connected to the rotating shaft body, an arc plate frame is fixedly installed on one end of the rotating shaft body, an S-pole disk and an N-pole plate frame are fixedly installed on the arc plate frame, one end of the driving shaft body is located below the arc plate frame, and the end of the driving shaft body is an S-pole magnetic surface.

[0012] Preferably, a force plate frame is fixedly mounted on one end of the rotating shaft body located inside the circular groove body, and a touch shaft body is fixedly mounted on one end of the force plate frame, wherein a sensing element is fixedly mounted on the circular groove body, and the sensing element is located on the motion trajectory of the touch shaft body.

[0013] Preferably, the driving member includes a movable slider, a guide column, a lifting panel, a clamping sleeve and a limiting shaft.

[0014] The movable slider is installed on the guide slide rail and is slidably connected to the guide slide rail. The magnetic panel is fixedly installed on one side of the movable slider, and the other side of the movable slider is connected to a return spring.

[0015] The guide column is fixedly mounted on the movable slider, and a plurality of guide columns are fixedly mounted on the movable slider;

[0016] The lifting panel is arranged above the movable slider, mounted on the guide column, and slidably connected to the guide column;

[0017] The clamping sleeve is fixedly mounted on the lifting panel and is used to limit the output pipeline;

[0018] The limiting shaft bodies are installed on both sides of the lifting panel, and a spring mechanism is connected between the lifting panel and the moving slider.

[0019] Preferably, support panels are fixedly installed on both sides of the guide slide rail, and a straight groove body and a downward inclined groove body connected to the straight groove body are provided on the support panel, and the limiting shaft body slides in the straight groove body and the downward inclined groove body.

[0020] Preferably, a plurality of silica gel blocks are fixedly mounted on the side of the action rod frame in contact with the copper sulfate reference electrode.

[0021] Preferably, a solenoid valve is fixedly installed on the output pipe, a feed pipe is fixedly installed on the top of the water storage barrel, and one end of the feed pipe passes through the inner wall of the partition and extends to the outside.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention utilizes an action rod frame to control the end cover of a copper sulfate reference electrode, and under the action of a vertical slot body and an annular slot body, the action rod frame and the silica gel block thereon are in close contact with the end cover of the copper sulfate reference electrode, and the driving shaft body cooperates with the sliding shaft body and the spiral groove thereon, so that the driving shaft body drives the action rod frame to rise and rotate, thereby making the end cover of the copper sulfate reference electrode leave the main body, and under the action of the moving block body, the clamping sleeve on the lifting panel drives the end of the output pipe to enter the inside of the copper sulfate reference electrode, so as to achieve the purpose of injecting pure water into the copper sulfate reference electrode, and at the same time, under the action of the driving plate frame, it is ensured that the copper sulfate reference electrode will not be affected by external impurities during the water injection process, so as to avoid the copper sulfate reference electrode from being contaminated and ensure the quality of stray current detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the separation of the box body and the partition structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the partition structure of the present invention;

[0027] Figure 4 It is a schematic diagram of a partially cutaway structure of a driving plate body of the present invention;

[0028] Figure 5 This is a schematic diagram of the working rod frame structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the limit frame and the action rod frame of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the limiting sleeve of the present invention;

[0031] Figure 8 It is a schematic diagram of a partially cutaway structure of a limiting sleeve of the present invention;

[0032] Fig. 9 This is a schematic diagram of the cutaway structure of the driving plate body of the present invention;

[0033] Fig.10 This is a schematic diagram of the structure of the arc-shaped plate frame and the drive shaft body of the present invention;

[0034] Fig.11 It is a schematic diagram of the structure of the fixed frame and the mechanical components thereon of the present invention;

[0035] Fig.12 This is a schematic diagram of the guide rail structure of the present invention;

[0036] Fig.13 It is a schematic diagram of the structure of the movable slider of the present invention.

[0037] In the figure: 1-box; 2-multimeter; 3-partition; 31-driving plate; 311-circular slot; 312-rotating shaft; 313-arc plate frame; 314-S pole disc; 315-N pole plate frame; 316-force plate frame; 317-touch shaft; 318-sensing element; 32-annular disc frame; 33-clockwork mechanism; 4-support frame; 5-fixed frame; 51-water storage bucket; 52-output pipeline; 53-annular electromagnetic panel; 54-electromagnetic valve; 55-feeding pipeline; 6-limiting sleeve; 61-sliding groove; 62-spiral groove; 63-vertical slot; 64-annular slot; 7-connection Frame; 8-driving shaft; 81-limiting frame; 82-sliding shaft; 83-connecting sleeve; 9-acting rod frame; 91-extension rod frame; 92-fixing sleeve; 93-sphere; 94-through-shaft; 95-circular panel; 96-spring body; 97-silicone block; 10-guide rail; 101-reset spring; 102-support panel; 103-straight groove; 104-inclined downward groove; 11-driving member; 111-moving slider; 112-guide column; 113-lifting panel; 114-clamping sleeve; 115-limiting shaft; 116-spring mechanism; 12-magnetic panel. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-13The present invention provides a technical solution: a buried steel pipe stray current detector. The present invention makes corresponding improvements to the technical problems in the background technology, including a box body 1, a multimeter 2 located inside the box body 1, the multimeter 2 is used to detect stray current, wherein a plurality of connecting wires are connected to the multimeter 2, a partition 3 slidably connected to the inner wall of the box body 1 is installed inside the box body 1, and a driving plate body 31 slidably connected to the inner wall of the box body 1 is installed on the partition 3, that is, the partition 3 can be drawn out from the inside of the box body 1, and a support frame 4 is fixedly installed inside the partition 3, and the support frame 4 is used to fix the copper sulfate reference electrode, so that the copper sulfate reference can be fixed through the support frame 4, a fixed frame 5 is also fixedly installed inside the partition 3, and a water storage bucket 51 is installed on the fixed frame 5, and a feeding pipe 55 is fixedly installed on the top of the water storage bucket 51, and one end of the feeding pipe 55 passes through the inner wall of the partition 3 and extends to the outside, so that the staff can pass through the The feed pipe 55 can inject pure water into the water storage barrel 51, wherein a connecting frame 7 is fixedly installed on one side of the driving plate body 31, and a limiting sleeve 6 is fixedly installed at one end of the connecting frame 7, and the limiting sleeve 6 is located inside the partition 3, and a driving shaft 8 is arranged inside the limiting sleeve 6, wherein a sliding shaft 82 is installed on the outer wall of the driving shaft 8, and a sliding groove 61 and a spiral groove 62 connected to the sliding groove 61 are arranged on the inner wall of the limiting sleeve 6, and the sliding shaft 82 slides in the sliding groove 61 and the spiral groove 62. In the initial state, the sliding shaft 82 on the outer wall of the driving shaft 8 is located at the initial end of the sliding groove 61 (that is, the end away from the spiral groove 62), and the limiting frame 81 is fixedly installed at the end of the driving shaft 8, and an action rod frame 9 slidably connected to it is symmetrically installed on the limiting frame 81, wherein the action rod frame 9 is used to contact the end cover of the copper sulfate reference, and a silicone block 97 is installed on the side of the action rod frame 9 contacting the end cover;

[0040] Each action rod frame 9 is fixedly installed with an extension rod frame 91, and the shape of the extension rod frame 91 is similar to an L shape. The extension rod frame 91 passes through the inner wall of the limiting frame body 81 and is slidably connected thereto. A fixed sleeve 92 is fixedly installed at one end of the extension rod frame 91, and a ball 93 is installed inside the fixed sleeve 92. The ball 93 is limited and rotated inside the fixed sleeve 92, that is, the ball 93 can roll inside the fixed sleeve 92. The outer wall of the limiting sleeve 6 is provided with a vertical groove body 63 and an annular groove body 64, and the annular groove body 64 is located above the vertical groove body 63. The vertical groove body 63 and the annular groove body 64 are in a connected state, wherein the vertical groove body 63 is relative to the annular groove body. 64, the annular groove body 64 is close to the axis of the limiting sleeve 6, and the intersection of the vertical groove body 63 and the annular groove body 64 is in an arc shape. A plurality of connecting sleeves 83 are symmetrically fixedly installed on the limiting frame body 81, and a plurality of through-shaft bodies 94 are installed on each action rod frame 9, and one end of the through-shaft body 94 is located inside the connecting sleeve 83, and a circular panel 95 is fixedly installed on the end, and a spring body 96 is connected between the circular panel 95 and the inner wall of the connecting sleeve 83. When the ball 93 is located in the vertical groove body 63, the spring body 96 is in a stretched state, and when the ball 93 is located in the annular groove body 64, the spring body 96 is in a normal state;

[0041] Furthermore, a circular groove 311 is provided on one side of the driving plate body 31, and a rotating shaft body 312 is installed on the circular groove body 311, and the end of the rotating shaft body 312 passes through the inner wall of the circular groove body 311 and extends to the other side of the driving plate body 31, and an annular disk rack 32 is fixedly installed on the other side of the partition 3, and a clockwork mechanism 33 is installed inside the annular disk rack 32, and the clockwork mechanism 33 is connected to the rotating shaft body 312 to make the rotating shaft body 312 rotate, and the clockwork mechanism 33 is in a winding state. When the rotating shaft body 312 is released, the rotating shaft body 312 slowly returns to its initial state under the action of the clockwork mechanism 33. It should be noted that the clockwork mechanism 33 is a prior art structure, and the present invention does not describe it too much. 12 is fixedly installed with an arc plate frame 313 at one end, and an S-pole disk 314 and an N-pole plate frame 315 are fixedly installed on the arc plate frame 313. One end of the driving shaft body 8 is located below the arc plate frame 313, and the end of the driving shaft body 8 is an S-pole magnetic surface. One end of the rotating shaft body 312 located inside the circular groove body 311 is fixedly installed with a force plate frame 316, and one end of the force plate frame 316 is fixedly installed with a touch shaft body 317, wherein a sensing element 318 is fixedly installed on the circular groove body 311, and the sensing element 318 is located on the motion trajectory of the touch shaft body 317. Further, in the initial state, the end of the driving shaft body 8 (S-pole magnetic surface) is located directly below the S-pole disk 314, and at this time, the S-pole disk 314 produces a repulsive force on the S-pole magnetic surface;

[0042] In the initial state, the driving plate body 31 seals the partition 3, and the copper sulfate reference electrode is fixed inside the partition 3 under the action of the support frame 4. At this time, the two action rod frames 9 (including the multiple silica gel blocks 97 thereon) are in contact with the end cap of the copper sulfate reference electrode, but the action force of the action rod frame 9 on the end cap of the copper sulfate reference electrode is not strong. If the driving plate frame slides inside the partition 3 (that is, the driving plate frame seals the partition 3, and the internal space of the partition 3 is exposed to the environment), the mechanical parts on the driving plate frame move synchronously with it, that is, the action rod frame 9 can leave the end cap of the copper sulfate reference electrode;

[0043] Specifically, when the staff needs to perform stray current detection on the buried steel pipe, first open the box 1, rotate the force plate frame 316 (rotation angle 180°), then take out the key to open the sealed door of the test pile, and connect the multiple connection wires on the multimeter 2. In this process, since the staff controls the force plate frame 316 to rotate, the force plate frame 316 drives the rotating shaft 312 to rotate synchronously, and the rotating shaft 312 drives the S-pole disk 314 and the N-pole plate frame 315 thereon to rotate synchronously through the arc plate frame 313. In the initial state (i.e. when the rotating shaft 312 is not rotating), the end of the driving shaft 8 (the S-pole magnetic surface) is located directly below the S-pole disk 314, i.e. the S-pole disk 314 generates a repulsive force on the S-pole magnetic surface. When the rotating shaft 312 is rotating, the end of the N-pole plate frame 315 (the end away from the S-pole disk 314) is located directly above the end of the driving shaft 8 (the S-pole magnetic surface), and the N-pole plate frame 315 generates an attractive force on the end of the driving shaft 8 (the S-pole magnetic surface), and the driving shaft 8 is fixed. The sliding shaft 82 on the driving shaft 8 moves upward from the initial end of the sliding groove 61 to the spiral groove 62. At this time, the driving shaft 8 drives the action rod frame 9 to move synchronously through the limit frame 81, and the extension rod frame 91 on the action rod frame 9 and the mechanical parts on the extension rod frame 91 move upward synchronously with it, so that the ball 93 inside the fixed sleeve 92 moves from the vertical groove 63 to the annular groove 64. Then, when the ball 93 moves from the vertical groove 63 to the annular groove 64, the sliding shaft 82 moves from the sliding groove 61 to the spiral groove 62. The row groove 61 moves into the spiral groove 62. Since the annular groove body 64 is close to the axis of the limiting sleeve 6 relative to the vertical groove body 63, and the spring body 96 is in a stretched state, when the ball 93 is located in the annular groove body 64, the spring body 96 in a stretched state drives the circular panel 95 back to the initial position, that is, the circular panel 95 drives the action rod frame 9 to move toward the end cover of the copper sulfate reference electrode through the through-shaft body 94, so that the silicone block 97 on one side of the action rod frame 9 is in close contact with the end cover;

[0044] The driving shaft body 8 continues to rise, and the sliding shaft body 82 of its outer wall performs a limiting motion along the spiral groove 62, that is, the driving shaft body 8 rotates while rising, and the driving shaft body 8 drives the action rod frame 9 to perform a synchronous action through the limiting frame body 81, that is, the action rod frame 9 drives the end cover to rotate and rise, so that the end cover of the copper sulfate reference electrode is gradually separated from the body. When the end of the driving shaft body 8 rises to the end, the end cover has been separated from the body and has also risen to a certain height;

[0045] Furthermore, an output pipe 52 is installed on the water storage barrel 51, and the output pipe 52 is used to transport pure water to the copper sulfate reference electrode, and a solenoid valve 54 is installed on the output pipe 52, wherein a guide rail 10 is fixedly installed on the fixed frame 5, and a driving member 11 slidably connected to the guide rail 10 is installed on the guide rail 10, and the driving member 11 is used to fix the output pipe 52, and a magnetic panel 12 is also installed on the driving member 11, and an annular electromagnetic panel 53 is fixedly installed on the fixed frame 5, and the annular electromagnetic panel 53 generates a repulsive force on the magnetic panel 12 when it is energized, and a plurality of reset springs 101 are connected between the driving member 11 and the guide rail 10; it should be noted that the solenoid valve 54 and the annular electromagnetic panel 53 are connected to the induction The elements 318 are electrically connected. It is further explained that in the initial state, the touch shaft 317 on the force plate frame 316 is at a certain distance from the sensing element 318. When the force plate frame 316 rotates 180°, when it rotates close to the end, the touch shaft 317 acts on the sensing element 318; when the rotating shaft 312 rotates in the opposite direction under the action of the clockwork mechanism 33, the touch shaft 317 acts on the sensing element 318 for the second time. When the sensing element 318 is touched for the second time, a signal is sent to the annular electromagnetic panel 53, and the annular electromagnetic panel 53 is powered on and powered off after 6 seconds. After 2 seconds of power on, the electromagnetic valve 54 is opened. Generally speaking, the time for the clockwork mechanism 33 to recover to the initial state is 15-22 seconds.

[0046] As a further limitation of the present invention, the driving member 11 includes a moving slider 111 installed on the guide rail 10, wherein the moving slider 111 can slide within the upper limit position of the guide rail 10, wherein the magnetic panel 12 is installed on one side of the moving slider 111, and the return spring 101 is connected to the other side of the moving slider 111, and a plurality of guide columns 112 are fixedly installed on the moving slider 111, and a lifting panel 113 slidably connected thereto is installed on the guide column 112, and the lifting panel 113 is located above the moving slider 111, and the lifting panel 113 is located above the moving slider 111. A clamping sleeve 114 is fixedly installed on the panel 113, and a limiting shaft 115 is installed on both sides of the lifting panel 113, wherein the clamping sleeve 114 is used to limit the output pipe 52, and a spring mechanism 116 is also connected between the lifting panel 113 and the movable slider 111, and a support panel 102 is fixedly installed on both sides of the guide rail 10, and a straight groove 103 and a downward inclined groove 104 connected to the straight groove 103 are provided on the support panel 102, and the limiting shaft 115 is limited and slides in the straight groove 103 and the downward inclined groove 104;

[0047] Specifically, when the clockwork mechanism 33 drives the rotating shaft 312 to rotate in the opposite direction, the N-pole plate frame 315 will still generate an attractive force on the end of the driving shaft 8 (the S-pole magnetic surface). When the touching shaft 317 contacts the sensing element 318, the end cover on the copper sulfate reference electrode will leave the body, and the annular electromagnetic panel 53 will be energized, which will generate a repulsive force on the magnetic panel 12, that is, the moving slider 111 moves in a directional manner under the action of the guide rail 10, and the moving slider 111 drives the lifting panel 113 to move synchronously through the guide column 112, and the clamping sleeve 114 on the lifting panel 113 drives the output pipe 52 to move synchronously therewith, and the limiting shafts 115 on both sides of the lifting panel 113 move from the straight groove 103 to the inclined downward groove 104. When the limiting shaft 115 moves to the inclined downward groove 104, the output pipe 52 enters the interior of the copper sulfate reference electrode, and then the electromagnetic valve 54 is opened, and pure water is injected into Inside the copper sulfate reference electrode, the 6s annular electromagnetic panel 53 is powered off, the electromagnetic valve 54 is closed, and the movable slider 111 returns to the initial position under the action of the buffer spring; when the clockwork mechanism 33 is restored, that is, the S-pole disk 314 is located directly above the end of the driving shaft body 8, a repulsive force is generated on the driving shaft body 8, that is, the driving shaft body 8 rotates in the opposite direction to drive the action rod frame 9 to rotate synchronously in the opposite direction. When the driving shaft body 8 moves to the initial position, the action rod frame 9 and the mechanical parts thereon return to the initial position. After completing the preparatory work before the test, the staff pushes the driving plate frame, and the mechanical parts on the driving plate frame move synchronously with it, that is, the action rod frame 9 can leave the end cover of the copper sulfate reference electrode, and then the staff takes the copper sulfate reference electrode out of the support frame 4 and shakes it manually for a certain period of time. Therefore, through the structural design of the present invention, dust in the environment can be effectively prevented from invading the copper sulfate reference electrode to prevent the copper sulfate reference electrode from being contaminated.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A buried steel pipe stray current detector, comprising a box (1), a multimeter (2) located inside the box (1), characterized in that: A partition (3) slidably connected to the inner wall of the box body (1) is installed inside the box body (1), a driving plate body (31) slidably connected to the inner wall of the box body (3) is installed on the partition body (3), and a support frame (4) is fixedly installed inside the partition body (3), and the support frame (4) is used to fix the copper sulfate reference electrode. A fixed frame (5) is also fixedly installed inside the partition body (3), and a water storage bucket (51) containing pure water is installed on the fixed frame body (5), and the pure water in the water storage bucket (51) is used to participate in the detection of the copper sulfate reference electrode. A limiting sleeve (6) is arranged inside the partition body (3), and a connecting frame (7) is fixedly installed on the inner wall of the driving plate body (31), and the connecting frame (7) is connected to the limiting sleeve (6). The limiting sleeve (6) is fixedly connected to the outside of the limiting sleeve (6), a driving shaft (8) is arranged inside the limiting sleeve (6), a limiting frame (81) is fixedly mounted on the end of the driving shaft (8), and an action rod frame (9) symmetrically mounted on the limiting frame (81) and slidably connected thereto, wherein the action rod frame (9) is used to contact the end cover of the copper sulfate reference, a sliding shaft (82) is mounted on the driving shaft (8), and a sliding groove (61) and a spiral groove (62) connected to the sliding groove (61) are arranged on the inner wall of the limiting sleeve (6), and the sliding shaft (82) is limitedly slidable in the sliding groove (61) and the spiral groove (62); an output pipe (52) is mounted on the water storage bucket (51), and the output pipe (52) is connected to the water storage bucket (51). A solenoid valve (54) is fixedly mounted on the pipeline (52); a guide rail (10) is fixedly mounted on the fixed frame (5); and a driving member (11) slidably connected thereto is mounted on the guide rail (10); the driving member (11) is used to fix the output pipeline (52); a magnetic panel (12) is also mounted on the driving member (11); and an annular electromagnetic panel (53) is fixedly mounted on the fixed frame (5); the annular electromagnetic panel (53) generates a repulsive force on the magnetic panel (12) when energized; and a plurality of return springs (101) are connected between the driving member (11) and the guide rail (10); a circular groove (311) is arranged on one side of the driving plate body (31); A rotating shaft (312) is mounted on the circular groove (311); an end of the rotating shaft (312) penetrates the inner wall of the circular groove (311) and extends to the other side of the driving plate (31); an annular disk frame (32) is fixedly mounted on the other side of the partition (3); a clockwork mechanism (33) is mounted inside the annular disk frame (32); the clockwork mechanism (33) is connected to the rotating shaft (312); an arc-shaped plate frame (313) is fixedly mounted on one end of the rotating shaft (312); an S-pole disk (314) and an N-pole plate frame (315) are fixedly mounted on the arc-shaped plate frame (313); one end of the driving shaft (8) is located below the arc-shaped plate frame (313); and the end of the driving shaft (8) is an S-pole magnetic surface;A force plate frame (316) is fixedly mounted on one end of the rotating shaft (312) located inside the circular groove (311), and a touch shaft (317) is fixedly mounted on one end of the force plate frame (316), wherein a sensing element (318) is fixedly mounted on the circular groove (311), and the sensing element (318) is located on the movement trajectory of the touch shaft (317); a plurality of silica gel blocks (97) are fixedly mounted on the side of the action rod frame (9) in contact with the copper sulfate reference electrode; an extension rod frame (91) is mounted on each of the action rod frames (9), the extension rod frame (91) penetrates the inner wall of the limiting frame (81) and is slidably connected thereto, a fixed sleeve (92) is fixedly mounted on one end of the extension rod frame (91), and a sphere (93) is mounted inside the fixed sleeve (92), and the sphere (93) is disposed in the fixed sleeve (9 2) Internal limited rotation; a plurality of connecting sleeves (83) are symmetrically mounted on the limiting frame (81), a plurality of through-shaft bodies (94) are mounted on each of the action rod frames (9), and one end of the through-shaft body (94) is located inside the connecting sleeve (83), and a circular panel (95) is fixedly mounted on the end, and a spring body (96) is connected between the circular panel (95) and the inner wall of the connecting sleeve (83); a vertical groove body (63) and an annular groove body (64) are arranged on the outer wall of the limiting sleeve (6), the annular groove body (64) is located above the vertical groove body (63), the vertical groove body (63) and the annular groove body (64) are in a connected state, relative to the vertical groove body (63), the annular groove body (64) is close to the axis of the limiting sleeve (6), and the intersection of the vertical groove body (63) and the annular groove body (64) is in an arc shape. ; 2. The buried steel pipe stray current detector according to claim 1, characterized in that: The driving member (11) comprises a movable slider (111), a guide column (112), a lifting panel (113), a clamping sleeve (114) and a limiting shaft (115). The movable slider (111) is mounted on the guide slide rail (10) and is slidably connected to the guide slide rail (10); the magnetic panel (12) is fixedly mounted on one side of the movable slider (111), and the other side of the movable slider (111) is connected to the return spring (101); The guide column (112) is fixedly mounted on the movable slider (111), and a plurality of guide columns are fixedly mounted on the movable slider (111); The lifting panel (113) is arranged above the movable slider (111), mounted on the guide column (112), and is slidably connected to the guide column (112); The clamping sleeve (114) is fixedly mounted on the lifting panel (113) and is used to limit the output pipe (52); The limiting shaft (115) is installed on both sides of the lifting panel (113), and a spring mechanism (116) is connected between the lifting panel (113) and the movable slider (111).

3. A buried steel pipe stray current detector according to claim 2, characterized in that: Support panels (102) are fixedly mounted on both sides of the guide rail (10), and a straight groove body (103) and a downwardly inclined groove body (104) connected to the straight groove body (103) are provided on the support panel (102), and the limiting shaft body (115) is limitedly slidable in the straight groove body (103) and the downwardly inclined groove body (104).

4. The buried steel pipe stray current detector according to claim 1, characterized in that: A feed pipe (55) is fixedly mounted on the top of the water storage barrel (51), and one end of the feed pipe (55) penetrates the inner wall of the partition (3) and extends to the outside.

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