Ship potential measuring instrument

Abstract

The utility model discloses a hull potential measuring instrument, which comprises a reference electrode and a measuring electrode, and further comprises a shell, and the reference electrode and the measuring electrode are fixed on the outer wall of the shell in a non-working state; the take-up mechanism is used for taking up and paying off a cable of the reference electrode, the take-up mechanism comprises a winding reel arranged in the shell, one end of the cable of the reference electrode is connected with the reference electrode, the other end of the cable of the reference electrode is connected with a reference electrode plug, and the reference electrode plug bypasses the winding reel and penetrates through the outer wall of the shell; the driving shaft is in transmission connection with the winding reel; and the driving mechanism is used for driving the driving shaft to rotate. The hull potential measuring instrument is provided with the shell, and the take-up mechanism for taking up and paying off the cable of the reference electrode is arranged in the shell, so that the situations that the cable of the reference electrode is troublesome to wind and the cable is easy to knot and wind can be prevented, and the hull potential measuring instrument is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a hull potential measuring instrument. Background Art

[0002] Steel boats are mostly made of carbon steel and low alloy steel. The hull will corrode when naturally immersed in seawater, and the corrosion potential is generally between -650 and -730mV (relative to Ag / AgCl electrodes). At present, cathodic protection measures (such as applied cathode current and installation of sacrificial anodes) are generally used to protect the hull. The normal protection potential should be between -800mv and -1000mv (relative to Ag / AgCl electrodes). When the potential is too high (the sacrificial anode used in the hull is of poor quality, the sacrificial anode dissolves during use, and the applied cathode current device fails), it will lead to insufficient protection; when the potential is too low, it is easy to induce hydrogen evolution reaction, causing the coating to bulge and fall off. By measuring the hull potential, the corrosion of the outer surface of the underwater hull can be monitored to understand the current state of the hull's cathodic protection. The hull potential measuring instrument uses electrodes to measure the potential difference between the hull surface and the seawater. The electrodes are composed of a reference electrode and a measuring electrode. The reference electrode, as a measurement reference point, needs to be put into the sea at a depth of about 0.5 meters and can maintain a stable potential with the surrounding seawater; the measuring electrode contacts the metal surface of the hull to measure the hull potential. During measurement, measurements need to be taken at the bow, midship, and stern of the hull, and the operation must be repeated. Because the reference electrode needs to be in the sea, the connecting cable is relatively long. Currently, the hull potential measuring instruments on the market do not have an automatic cable winding function, which requires repeated operation, and the cable winding is troublesome, and the cable is prone to knotting and entanglement. In view of the above-mentioned shortcomings of the prior art, this application designs a hull potential meter with a cable winding function. It has a simple and compact structure, can automatically wind up the cable, prevents the reference electrode cable from being entangled, and saves measurement time; secondly, the reference electrode clamping mechanism and the measuring electrode cable winding and bundling rubber ring are designed, and the spatial layout is compact and reasonable, and it is easy to use. Utility Model Content

[0003] In order to achieve the above-mentioned purpose, the utility model provides a hull potential measuring instrument. The utility model provides the following technical solutions: the hull potential measuring instrument includes a reference electrode and a measuring electrode, and also includes:

[0004] A shell, wherein the reference electrode and the measuring electrode are fixed to the outer wall of the shell when not in operation;

[0005] A wire-retracting mechanism is used to retract and release the cable of the reference electrode, and the wire-retracting mechanism comprises:

[0006] A winding drum is arranged inside the shell, one end of the cable of the reference electrode is connected to the reference electrode, and the other end is connected to the reference electrode plug, and the reference electrode plug bypasses the winding drum and passes through the outer wall of the shell;

[0007] A drive shaft, drivingly connected to the winding drum;

[0008] The driving mechanism is used to drive the driving shaft to rotate.

[0009] Preferably, it further comprises a wire arrangement mechanism, wherein the wire arrangement mechanism comprises:

[0010] A reciprocating screw is rotatably disposed inside the housing and is arranged parallel to the winding drum, and rotates under the action of the driving mechanism;

[0011] A reciprocating slider is connected to the reciprocating screw and moves along the axis of the reciprocating screw during the rotation of the reciprocating screw;

[0012] The reciprocating slide block is provided with a cable hole for the reference electrode to pass through.

[0013] Preferably, the driving mechanism comprises:

[0014] A driving gear, disposed at one end of the driving shaft;

[0015] A transmission gear, disposed at one end of the reciprocating screw and connected to the driving shaft;

[0016] The driving force of the driving mechanism is manual power or motor driving power.

[0017] Preferably, a reduction gear is meshedly connected between the driving gear and the transmission gear.

[0018] Preferably, a fixing seat for fixing the reference electrode is provided on the outer side of the housing, and the fixing seat comprises:

[0019] A first clamping seat, fixedly connected to a base on the outer side of the shell;

[0020] A second clamping seat is slidably connected to the base on the outer side of the shell and is arranged opposite to the first clamping seat, and an arc groove is provided on the opposite side of the first clamping seat and the second clamping seat;

[0021] A limit pin, one end of which is connected to the first clamping seat, and the other end of which is slidably connected to the second clamping seat; a limit groove is provided at the sliding connection end of the limit pin and the second clamping seat;

[0022] A stop screw is provided on the second clamping seat, and moves along the limiting groove during the movement of the second clamping seat to prevent the second clamping seat from being separated from the limiting pin;

[0023] The tension spring is arranged between the first clamping seat and the second clamping seat.

[0024] Preferably, a fixing column for fixing the measuring electrode is provided on the outer side of the shell.

[0025] Preferably, the alligator clip of the measuring electrode is provided with a limiter for winding the measuring electrode cable, a rubber ring for bundling the measuring electrode cable, and a rubber ring fixing buckle, and the limiter is arranged between the rubber ring and the rubber ring fixing buckle.

[0026] Preferably, the limiting body is a crescent-shaped structure.

[0027] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0028] (1) The hull potential measuring instrument of the present application is provided with a shell, and a wire-retracting mechanism for retracting and releasing the cable of the reference electrode is provided inside the shell, which can prevent the troublesome winding of the cable of the reference electrode and the occurrence of knots and entanglements of the cable, and is convenient to use;

[0029] (2) The present application is also provided with a cable arrangement mechanism, which can arrange the cables neatly on the winding drum while the cable reel is reeling in, and can automatically reel in and arrange the cables, thereby preventing the reference electrode cables from being entangled and saving measurement time;

[0030] (3) The outer side of the shell of the hull potential measuring instrument of the present application is also provided with a fixing seat for fixing the reference electrode and a fixing column for fixing the measuring electrode, which is convenient for storing the electrodes, has a compact and reasonable space layout, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the hull potential measuring instrument of the utility model;

[0032] Figure 2 This is a structural schematic diagram of the hull potential measuring instrument of the utility model from another perspective;

[0033] Figure 3 This is a schematic diagram of the internal structure of the hull potential measuring instrument of the utility model;

[0034] Figure 4 It is a schematic structural diagram of the measuring electrode of the hull potential measuring instrument of the utility model;

[0035] Figure 5 The utility model is a schematic diagram of the structure of the fixing seat of the hull potential measuring instrument.

[0036] In the figure:

[0037] 10-reference electrode; 11-reference electrode plug;

[0038] 20-measuring electrode; 21-limiting body; 22-rubber ring; 23-rubber ring fixing buckle;

[0039] 30-housing;

[0040] 40-reeling mechanism; 41-winding drum; 42-driving shaft; 43-rocker arm;

[0041] 50-wire arrangement mechanism; 51-reciprocating screw; 52-reciprocating slider; 521-wire hole;

[0042] 61-driving gear; 62-transmission gear; 63-reduction gear;

[0043] 70-fixed seat; 71-first clamping seat; 72-second clamping seat; 73-limiting pin; 731-limiting groove; 74-stop screw; 75-tension spring;

[0044] 80-Fixed column. DETAILED DESCRIPTION

[0045] 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.

[0046] See also Figure 1-3 The present application provides a technical solution: a hull potential measuring instrument, comprising: a reference electrode 10, a measuring electrode 20 and a shell 30. The reference electrode 10 and the measuring electrode 20 can be fixed on the outer wall of the shell 30 when not in operation. A wire-reeling mechanism 40 for retracting and releasing the cable of the reference electrode 10 is provided in the shell 30, and the wire-reeling mechanism 40 comprises: a winding drum 41, a driving shaft 42 and a driving mechanism; wherein: the winding drum 41 is provided inside the shell 30, one end of the cable of the reference electrode 10 is connected to the reference electrode 10, and the other end is connected to the reference electrode plug 11, and the reference electrode plug 11 bypasses the winding drum 41 and passes through the outer wall of the shell 30;

[0047] The driving shaft 42 is drivingly connected to the winding drum 41; the driving mechanism is used to drive the driving shaft 42 to rotate, that is, the winding drum 41 rotates under the action of the driving mechanism.

[0048] As a further solution of this embodiment, Figure 3As shown, the hull potential measuring instrument also includes a wire arrangement mechanism 50, which includes: a reciprocating screw 51 and a reciprocating slider 52, wherein: the reciprocating screw 51 is rotatably arranged inside the housing 30, and is arranged parallel to the winding drum 41, and rotates under the action of the driving mechanism; the reciprocating slider 52 is connected to the reciprocating screw 51, and moves along the axis of the reciprocating screw 51 during the rotation of the reciprocating screw 51; the reciprocating slider 52 is provided with a wire hole 521 for the cable of the reference electrode 10 to pass through. In practical applications, the reciprocating screw 51 and the reciprocating slider 52 can be a ball screw structure, and the reciprocating slider 52 is a ball nut structure; of course, when the reciprocating slider 52 is a common thread structure, a slide table arranged parallel to the reciprocating screw 51 can be arranged inside the housing 30 to make the reciprocating slider 52 slidably connected.

[0049] As a further solution of this embodiment, Figure 3 As shown, the driving mechanism includes: a driving gear 61 and a transmission gear 62. The driving gear 61 is arranged at one end of the driving shaft 42; the transmission gear 62 is arranged at one end of the reciprocating screw 51 and is connected to the driving shaft 42; the driving force of the driving mechanism is manual power or motor driving power. In this example, Figure 1 As shown, the driving force of the driving mechanism is manual power. The staff rotates the rocker arm 43 connected to the driving shaft 42 to rotate the driving shaft 42, and then the transmission gear 62 is transmitted through the driving gear 61 on the driving shaft 42. Of course, in order to adjust the speed of the cable arrangement, a reduction gear 63 can be meshed and connected between the driving gear 61 and the transmission gear 62.

[0050] As a further solution of this embodiment, Figure 2 , Figure 5 As shown, a fixing seat 70 for fixing the reference electrode 10 is provided on the outer side of the housing 30 , and the fixing seat 70 includes: a first clamping seat 71 , a second clamping seat 72 , a limiting pin 73 , a stop screw 74 and a tension spring 75 . Among them: the first clamping seat 71 is fixedly connected to the base on the outer side of the shell 30; the second clamping seat 72 is slidably connected to the base on the outer side of the shell 30 and is arranged opposite to the first clamping seat 71, and the opposite sides of the first clamping seat 71 and the second clamping seat 72 are provided with an arc groove for fitting the outer shell of the reference electrode 10; one end of the limiting pin 73 is connected to the first clamping seat 71, and the other end is slidably connected to the second clamping seat 72; a limiting groove 731 is provided at the sliding connection end of the limiting pin 73 and the second clamping seat 72; a stop screw 74 is provided on the second clamping seat 72, and moves along the limiting groove 731 during the movement of the second clamping seat 72. When the second clamping seat 72 moves to the end of the limiting pin 73, the limiting pin 73 is stuck to prevent the second clamping seat 72 from detaching from the limiting pin 73; a tension spring 75 is provided between the first clamping seat 71 and the second clamping seat 72 to pull back the second clamping seat 72 that moves to the end of the limiting pin 73.

[0051] As a further solution of this embodiment, Figure 2 , Figure 4 As shown, a fixing column 80 for fixing the measuring electrode 20 is provided on the outer side of the housing 30, and the clamp of the alligator clip of the measuring electrode 20 bites the fixing column 80 to fix the measuring electrode and the housing 30. The alligator clip of the measuring electrode 20 is provided with a limiter 21 for winding the measuring electrode cable, a rubber ring 22 for bundling the measuring electrode cable, and a rubber ring fixing buckle 23. The limiter 21 is arranged between the rubber ring 22 and the rubber ring fixing buckle 23. The limiter 21 is a crescent-shaped structure. The measuring electrode end cable connection line is wound around the alligator clip crescent-shaped cable line, and then it is wound around the limiter 21 and fastened by the rubber ring 22 and the rubber ring fixing buckle 23.

[0052] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0053] 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 hull potential measuring instrument, comprising a reference electrode (10) and a measuring electrode (20), characterized in that: Also includes: A housing (30), wherein the reference electrode (10) and the measuring electrode (20) are fixed to an outer wall of the housing (30) when not in operation; A wire-retracting mechanism (40) is used to retract and release the cable of the reference electrode (10), and the wire-retracting mechanism (40) comprises: A winding drum (41) is arranged inside the housing (30); one end of the cable of the reference electrode (10) is connected to the reference electrode (10), and the other end is connected to the reference electrode plug (11); the reference electrode plug (11) bypasses the winding drum (41) and passes through the outer wall of the housing (30); A driving shaft (42) drivingly connected to the winding drum (41); A driving mechanism is used to drive the driving shaft (42) to rotate.

2. The hull potential measuring instrument according to claim 1, characterized in that: It also includes a wire arrangement mechanism (50), wherein the wire arrangement mechanism (50) includes: a reciprocating screw (51) rotatably disposed inside the housing (30) and arranged parallel to the winding drum (41), and rotating under the action of the driving mechanism; A reciprocating slider (52) connected to the reciprocating screw (51) and moving along the axis of the reciprocating screw (51) during the rotation of the reciprocating screw (51); The reciprocating slider (52) is provided with a cable hole (521) for the cable of the reference electrode (10) to pass through.

3. The hull potential measuring instrument according to claim 2, characterized in that: The driving mechanism comprises: A driving gear (61) disposed at one end of the driving shaft (42); A transmission gear (62) is disposed at one end of the reciprocating screw (51) and is in transmission connection with the driving shaft (42); The driving force of the driving mechanism is manual power or motor driving power.

4. The hull potential measuring instrument according to claim 3, characterized in that: A reduction gear (63) is meshedly connected between the driving gear (61) and the transmission gear (62).

5. The hull potential measuring instrument according to claim 1, characterized in that: A fixing seat (70) for fixing the reference electrode (10) is provided on the outer side of the housing (30), and the fixing seat (70) comprises: A first clamping seat (71) fixedly connected to a base on the outside of the housing (30); A second clamping seat (72) is slidably connected to a base on the outer side of the housing (30) and is arranged opposite to the first clamping seat (71); arc-shaped grooves are provided on opposite sides of the first clamping seat (71) and the second clamping seat (72); A limiting pin (73), one end of which is connected to the first clamping seat (71), and the other end of which is slidably connected to the second clamping seat (72); a limiting groove (731) is provided at the sliding connection end between the limiting pin (73) and the second clamping seat (72); A stop screw (74) is provided on the second clamping seat (72) and moves along the limiting groove (731) during the movement of the second clamping seat (72) to prevent the second clamping seat (72) from being separated from the limiting pin (73); The tension spring (75) is arranged between the first clamping seat (71) and the second clamping seat (72).

6. The hull potential measuring instrument according to claim 1, characterized in that: A fixing column (80) for fixing the measuring electrode (20) is provided on the outside of the housing (30).

7. The hull potential measuring instrument according to claim 1, characterized in that: The alligator clip of the measuring electrode (20) is provided with a limiting body (21) for winding the measuring electrode cable, a rubber ring (22) for bundling the measuring electrode cable, and a rubber ring fixing buckle (23), wherein the limiting body (21) is arranged between the rubber ring (22) and the rubber ring fixing buckle (23).

8. The hull potential measuring instrument according to claim 7, characterized in that: The limiting body (21) is a crescent-shaped structure.

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