CN215768173U

CN215768173U - Plug-in reference electrode for cathodic protection

Info

Publication number: CN215768173U
Application number: CN202122103986.3U
Authority: CN
Inventors: 江福
Original assignee: Taicang Changfu Metal Products Co ltd
Current assignee: Taicang Changfu Metal Products Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-02-08
Anticipated expiration: 2031-09-02

Abstract

The utility model provides a plug-in reference electrode of cathodic protection, in aluminium, copper, magnesium, titanium alloy clean production and deep-processing technical field, including electrode subject, main part connection fixed block, glass pipe, porous ceramic, wire electrode, closing cap, plug subassembly and wire, the wire electrode sets up in the glass pipe to the one end setting of wire electrode is in the main part connection fixed block, the end connection of glass pipe is kept away from to closing cap and electrode subject, the plug subassembly sets up in the tip that the electrode subject is close to the closing cap, wire and plug subassembly are connected to plug subassembly and wire electrode are connected. The cathode-protected pluggable reference electrode disclosed by the utility model forms a pluggable structure, is convenient to use, reduces the influence of current signal noise on the whole detection equipment, and ensures the conductive effect; the parts can be replaced rapidly at any time according to actual needs so as to facilitate maintenance and repair, and the cost of corrosion monitoring/detection operation on the metal structure is obviously reduced.

Description

Plug-in reference electrode for cathodic protection

Technical Field

The utility model belongs to the technical field of clean production and deep processing of aluminum, copper, magnesium and titanium alloys, and particularly relates to a plug-in reference electrode with cathode protection.

Background

The reference electrode is an electrode for reference comparison when measuring the potential of the electrode, and is used for observing and measuring the potential of the indicator electrode or the working electrode. The electrode reaction carried out on the reference electrode must be a single reversible reaction with a large exchange current density and a stable electrode potential. The stability of the reference electrode makes it of crucial importance to be used as an electrical reference point and for measuring the potential of other metals located in the soil or water, the reference electrode being suitable for measuring the potential of buried or underwater pipelines.

Such a reference electrode is generally composed of an electrode core, a lead wire, a sealing resin, and a case, which are integrated with the electrode core, the lead wire, and the sealing resin and the case together in a non-detachable manner. Because of the short life of the electrode core of the reference electrode, for facilities with service lives of decades, the reference electrode needs to be replaced many times in the corrosion monitoring/detecting operation of the metal structure. The reference electrode is a whole body, and the reference electrode must be replaced integrally when the electrode core or any other component is damaged or fails in the using process. Therefore, the maintenance and the maintenance performance of the reference electrode are extremely poor, the cost of carrying out corrosion monitoring/detection operation on the metal structure is increased, and unnecessary waste is brought.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a cathode-protected plug-in reference electrode, which solves the problems that the overall structure of the reference electrode is inconvenient to overhaul and the material waste is easily caused.

The technical scheme is as follows: the utility model provides a cathode protection pluggable reference electrode which comprises an electrode main body, a main body connecting and fixing block, a glass tube, porous ceramics, an electrode wire, a sealing cover, a plugging component and a lead wire, wherein the main body connecting and fixing block is arranged in the electrode main body, one end of the glass tube is connected with the main body connecting and fixing block, the other end of the glass tube is connected with the porous ceramics, the end part of the glass tube where the porous ceramics is located extends out of the electrode main body, the electrode wire is arranged in the glass tube, one end of the electrode wire is arranged in the main body connecting and fixing block, the sealing cover is connected with the end part, far away from the glass tube, of the electrode main body, the plugging component is arranged in the end part, close to the sealing cover, of the electrode main body, the lead wire is connected with the plugging component, and the plugging component is connected with the electrode wire. The cathode-protected plug-in reference electrode can rapidly replace parts at any time according to actual needs, is convenient to maintain and repair, and obviously reduces the cost of corrosion monitoring/detection operation on a metal structure.

Furthermore, foretell plug-in reference electrode of cathodic protection, be equipped with cavity one, cavity two and cavity three in the electrode main part, cavity one, cavity two and cavity three intercommunication to cavity one, cavity two and cavity three run through the electrode main part, cavity two is located between cavity one and cavity three, the plug subassembly sets up in cavity one, the main part is connected the fixed block and is set up in cavity two, the glass pipe sets up in cavity three.

Further, according to the cathode protection plug-in reference electrode, the sectional area of the first cavity is larger than that of the second cavity, the sectional area of the second cavity is larger than that of the third cavity, the first boss is arranged between the first cavity and the second cavity, the second boss is arranged between the second cavity and the third cavity, and the main body is connected with the fixing block and abuts against the second boss.

Furthermore, foretell plug-in reference electrode of cathodic protection, the plug subassembly includes pull handle, electrically conductive plug piece, leads electrical pillar, connection pad, a set of pull rod assembly and a set of locking Assembly, the end connection that the electrode main part was kept away from to pull handle and connection pad, a set of pull rod assembly and connection pad are close to the end connection of electrode main part, a set of locking Assembly sets up in the electrode main part to a set of locking Assembly can be with electrically conductive plug piece locking in the electrode main part, electrically conductive plug piece and a set of pull rod assembly connect, it sets up on the tip that electrically conductive plug piece is close to main part connection fixed block to lead electrical pillar and can contact with the electrode wire, electrically conductive plug piece is electrically conductive material, pull rod assembly is insulating material, electrically conductive plug piece is located cavity one.

Furthermore, according to the cathode-protected plug-in reference electrode, the first connecting convex part is arranged on the end face, close to the conductive plug-in block, of the main body connecting fixing block, the guide hole is formed in the end face, close to the conductive plug-in block, of the first connecting convex part, the electrode wire extends into the guide hole, and the conductive post is arranged in the guide hole.

Further, foretell cathodic protection's plug-in reference electrode, be equipped with sealing washer one on the inner wall of cavity one, sealing washer one sets up between the outer wall of conductive plug-in block and the inner wall of cavity one, be equipped with sealing washer two between the inner wall of boss one and cavity one, be equipped with the conical surface on the inner wall of sealing washer two, the bight of conductive plug-in block can compress tightly the laminating with the conical surface. The first sealing ring and the second sealing ring are matched, so that good sealing can be formed between the movable conductive plug block and the inner wall of the first cavity.

Furthermore, the pull rod assembly comprises a cylindrical pull rod, a first spring and a limiting ring, one end of the cylindrical pull rod is fixedly connected with the connecting disc, the other end of the cylindrical pull rod penetrates through the conductive plug block, a fourth cavity is arranged inside the conductive plug block, the limiting ring is fixedly arranged on the cylindrical pull rod, the first spring is arranged between the limiting ring and the inner wall of the conductive plug block, the limiting ring is located at one end, close to the connecting disc, of the first spring, and the limiting ring and the first spring are located in the fourth cavity. The conductive plugging block is pushed to move by the movement of the cylindrical pull rod, so that the conductive column is contacted with or separated from the electrode wire.

Furthermore, foretell cathodic protection's plug-in reference electrode, locking Assembly includes spring two and spacing arch, be equipped with a set of recess one in the electrode main part, a set of recess one and a set of locking Assembly one-to-one set up, spring two sets up in recess one, spacing bellied one end and spring two are connected to spacing bellied other end extends recess one and contacts with electrically conductive plug piece. The second spring provides certain elastic force for the limiting protrusion, and when the second spring extends out, the limiting protrusion is pushed to extend out of the first groove, so that the limiting protrusion is abutted to the conductive plug block, and the conductive plug block is locked.

Furthermore, in the cathode-protected plug-in reference electrode, the end of the cavity I is provided with a groove II, and the sealing cover is in threaded connection with the inner wall of the groove II. The closing cap adopts the screw thread to connect, conveniently dismantles.

Furthermore, a third sealing ring is arranged between the sealing cover and the second groove. And the sealing ring III is arranged, so that the sealing cover and the electrode main body have good sealing performance.

The technical scheme shows that the utility model has the following beneficial effects: the cathode protection plug-in reference electrode does not adopt a traditional copper column, and a plug-in structure is formed by connecting or disconnecting the conductive plug-in block capable of moving back and forth and the electrode wire, so that the cathode protection plug-in reference electrode is convenient to use, reduces the influence of current signal noise on the whole detection equipment, and ensures the conductive effect; the detection sensitivity of the electrochemical equipment is improved, the prepared reference electrode can accurately measure the electromotive force value of the battery, and the electrode potential is stable and good in reproducibility; when the reference electrode is used, part of parts are damaged, and a user only needs to replace a damaged part without replacing the whole electrode, so that the maintenance cost of a consumer is reduced, the maintenance cost is reduced, and the utilization rate of materials is improved.

Drawings

FIG. 1 is a schematic structural diagram of a cathodically protected plug-in reference electrode according to the present invention;

fig. 2 is a partial enlarged view of the utility model at a in fig. 1.

In the figure: the electrode comprises an electrode body 1, a first cavity 11, a first sealing ring 111, a second sealing ring 112, a conical surface 113, a second groove 114, a third sealing ring 115, a second cavity 12, a third cavity 13, a first boss 14, a second boss 15, a first groove 16, a body connecting and fixing block 2, a first protrusion 21, a guide hole 22, a glass tube 3, porous ceramics 4, an electrode wire 5, a sealing cover 6, a plug assembly 7, a pull handle 71, a conductive plug block 72, a fourth cavity 721, a conductive post 73, a connecting disc 74, a pull rod assembly 75, a cylindrical pull rod 751, a first spring 752, a limiting ring 753, a locking assembly 76, a second spring 761, a limiting protrusion 762 and a lead 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

The cathode protection plug-in reference electrode shown in figures 1 and 2 comprises an electrode main body 1, a main body connecting and fixing block 2, a glass tube 3, porous ceramics 4, an electrode wire 5, a sealing cover 6, a plug-in component 7 and a lead wire 8, the main body connecting and fixing block 2 is arranged in the electrode main body 1, one end of the glass tube 3 is connected with the main body connecting and fixing block 2, the other end of the glass tube 3 is connected with the porous ceramic 4, the end part of the glass tube 3 where the porous ceramic 4 is positioned extends out of the electrode main body 1, the electrode wire 5 is arranged in the glass tube 3, one end of the electrode wire 5 is arranged in the main body connecting and fixing block 2, the sealing cover 6 is connected with the end part of the electrode main body 1 far away from the glass tube 3, the plug assembly 7 is arranged in the end part, close to the sealing cover 6, of the electrode main body 1, the lead 8 is connected with the plug assembly 7, and the plug assembly 7 is connected with the electrode wire 5. The plug assembly 7 is reciprocally movable within the electrode body 1 so as to connect or disconnect the wire electrode 5 and the lead wire 8. The glass tube 3 contains a saturated potassium chloride solution. The electrode wire 3 is a silver wire coated with a polytetrafluoroethylene and plated with an AgCl film on the surface.

Wherein, be equipped with cavity one 11, cavity two 12 and cavity three 13 in the electrode main part 1, cavity one 11, cavity two 12 and cavity three 13 intercommunication to cavity one 11, cavity two 12 and cavity three 13 run through electrode main part 1, cavity two 12 is located between cavity one 11 and cavity three 13, plug subassembly 7 sets up in cavity one 11, the main part is connected fixed block 2 and is set up in cavity two 12, glass pipe 3 sets up in cavity three 13. The sectional area of the first cavity 11 is larger than that of the second cavity 12, the sectional area of the second cavity 12 is larger than that of the third cavity 13, a first boss 14 is arranged between the first cavity 11 and the second cavity 12, a second boss 15 is arranged between the second cavity 12 and the third cavity 13, and the main body is connected with the fixing block 2 and abuts against the second boss 15. The fixing block 2 is limited on the second boss 15 through the main body, so that the glass tube 3 is limited on the electrode main body 1.

In the structural groove, the plug assembly 7 includes a pull handle 71, a conductive plug 72, a conductive post 73, a connection pad 74, a set of pull rod assemblies 75 and a set of locking assemblies 76, the pull handle 71 and the connection pad 74 are connected with each other at a position far from the end face of the electrode body 1, the set of pull rod assemblies 75 and the connection pad 74 are connected with each other at a position near to the end face of the electrode body 1, the set of locking assemblies 76 is disposed in the electrode body 1, the set of locking assemblies 76 can lock the conductive plug 72 in the electrode body 1, the conductive plug 72 is connected with the set of pull rod assemblies 75, the conductive post 73 is disposed at an end of the conductive plug 72 near to the body connection fixing block 2, and the conductive post 73 can contact the electrode wire 5, the conductive plug 72 is made of a conductive material, the pull rod assemblies 75 are made of an insulating material, and the conductive plug 72 is located in the cavity one 11.

In addition, the end face of the main body connection fixed block 2 close to the conductive plug block 72 is provided with a first connection protrusion 21, the end face of the first connection protrusion 21 close to the conductive plug block 72 is provided with a guide hole 22, the electrode wire 5 extends into the guide hole 22, and the conductive column 73 is arranged in the guide hole 22. The conductive plug 72 moves within the electrode body 1 so that the conductive post 73 is inserted into or withdrawn from the guide hole 22, thereby connecting or disconnecting the conductive post 73 and the wire electrode 5.

Thirdly, the pull rod assembly 75 comprises a cylindrical pull rod 751, a first spring 752 and a limit ring 753, one end of the cylindrical pull rod 751 is fixedly connected with the connecting disc 74, the other end of the cylindrical pull rod 751 penetrates through the conductive plug block 72, a cavity quadri 721 is arranged inside the conductive plug block 72, the limit ring 753 is fixedly arranged on the cylindrical pull rod 751, the first spring 752 is arranged between the limit ring 753 and the inner wall of the conductive plug block 72, the limit ring 753 is positioned at one end, close to the connecting disc 74, of the first spring 752, and the limit ring 753 and the first spring 752 are both positioned in the cavity quadri 721. The locking assembly 76 comprises a second spring 761 and a limiting protrusion 762, a first group of grooves 16 is formed in the electrode body 1, the first group of grooves 16 and the first group of locking assemblies 76 are arranged in a one-to-one correspondence manner, the second spring 761 is arranged in the first group of grooves 16, one end of the limiting protrusion 762 is connected with the second spring 761, and the other end of the limiting protrusion 762 extends out of the first group of grooves 16 to be in contact with the conductive plug-in block 72. When the conductive post 73 is communicated with the electrode wire 5, the connecting disc 74 is pushed towards the electrode main body 1, the connecting disc 74 drives the cylindrical pull rod 751 to move, the cylindrical pull rod 751 drives the limiting ring 753 to move, at the moment, the first spring 752 is compressed, when the compressed elastic force of the first spring 752 is larger than the compressed force of the second spring 761, the second spring 761 is compressed, the limiting protrusion 762 is retracted into the first groove 16, so that the conductive plug-in block 72 moves towards the main body connection fixing block 2, the conductive post 73 is inserted into the guide hole 22, and at the moment, the conductive post 73 is contacted with the electrode wire 5; when the conductive column 73 and the electrode wire 5 are disconnected, the pull handle 71 is pulled to drive the cylindrical pull rod 751 to be pulled out of the electrode main body 1, the cylindrical pull rod 751 directly acts on the conductive plug block 72 through the limiting ring 753, so that the conductive plug block 72 moves towards the direction far away from the main body connection fixing block 2, the conductive column 73 is pulled out of the guide hole 22, and at the moment, the conductive column 73 is separated from the electrode wire 5.

In addition, be equipped with sealing washer 111 on the inner wall of cavity one 11, sealing washer 111 sets up between the outer wall of conductive plug block 72 and the inner wall of cavity one 11, be equipped with sealing washer two 112 between the inner wall of boss one 14 and cavity one 11, be equipped with conical surface 113 on the inner wall of sealing washer two 112, the bight of conductive plug block 72 can compress tightly the laminating with conical surface 113. The end part of the first cavity 11 is provided with a second groove 114, and the sealing cover 6 is in threaded connection with the inner wall of the second groove 114. And a third sealing ring 115 is arranged between the sealing cover 6 and the second groove 114.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims

1. A plug-in reference electrode of cathodic protection which characterized in that: comprises an electrode main body (1), a main body connecting fixing block (2), a glass tube (3), porous ceramics (4), a wire electrode (5), a sealing cover (6), a plugging component (7) and a lead (8), wherein the main body connecting fixing block (2) is arranged in the electrode main body (1), one end of the glass tube (3) is connected with the main body connecting fixing block (2), the other end of the glass tube (3) is connected with the porous ceramics (4), the end part of the glass tube (3) where the porous ceramics (4) is arranged extends out of the electrode main body (1), the wire electrode (5) is arranged in the glass tube (3), one end of the wire electrode (5) is arranged in the main body connecting fixing block (2), the sealing cover (6) is connected with the end part of the electrode main body (1) far away from the glass tube (3), the plugging component (7) is arranged in the end part of the electrode main body (1) close to the sealing cover (6), the lead (8) is connected with the plug-in component (7), and the plug-in component (7) is connected with the electrode wire (5).

2. The cathodically protected pluggable reference electrode of claim 1, wherein: be equipped with cavity one (11), cavity two (12) and cavity three (13) in electrode main part (1), cavity one (11), cavity two (12) and cavity three (13) intercommunication to cavity one (11), cavity two (12) and cavity three (13) run through electrode main part (1), cavity two (12) are located between cavity one (11) and cavity three (13), plug subassembly (7) set up in cavity one (11), the main part is connected fixed block (2) and is set up in cavity two (12), glass pipe (3) set up in cavity three (13).

3. The cathodically protected pluggable reference electrode of claim 2, wherein: the sectional area of cavity one (11) is greater than the sectional area of cavity two (12), the sectional area of cavity two (12) is greater than the sectional area of cavity three (13), be equipped with boss one (14) between cavity one (11) and cavity two (12), be equipped with boss two (15) between cavity two (12) and cavity three (13), the main part is connected fixed block (2) and is offset with boss two (15).

4. The cathodically protected pluggable reference electrode of claim 3, wherein: the plug assembly (7) comprises a pull handle (71), a conductive plug block (72), a conductive column (73), a connecting disc (74), a group of pull rod assemblies (75) and a group of locking assemblies (76), wherein the pull handle (71) is connected with the end face of the connecting disc (74) far away from the electrode main body (1), the group of pull rod assemblies (75) is connected with the end face of the connecting disc (74) close to the electrode main body (1), the group of locking assemblies (76) are arranged in the electrode main body (1), the group of locking assemblies (76) can lock the conductive plug block (72) in the electrode main body (1), the conductive plug block (72) is connected with the group of pull rod assemblies (75), the conductive column (73) is arranged at the end part of the conductive plug block (72) close to the main body connecting fixing block (2), and the conductive column (73) can be in contact with the electrode wire (5), the conductive plug block (72) is made of conductive materials, the pull rod assembly (75) is made of insulating materials, and the conductive plug block (72) is located in the first cavity (11).

5. The cathodically protected pluggable reference electrode of claim 4, wherein: the main part is connected and is equipped with on the terminal surface that fixed block (2) are close to conductive plug pull block (72) and connect convex part (21), connect convex part (21) and be equipped with guiding hole (22) on being close to the terminal surface of conductive plug pull block (72), wire electrode (5) extend to in guiding hole (22), it sets up in guiding hole (22) to lead electrical pillar (73).

6. The cathodically protected pluggable reference electrode of claim 4, wherein: be equipped with sealing washer (111) on the inner wall of cavity (11), sealing washer (111) set up between the outer wall of conductive plug pull block (72) and the inner wall of cavity (11), be equipped with sealing washer two (112) between the inner wall of boss (14) and cavity (11), be equipped with conical surface (113) on the inner wall of sealing washer two (112), the bight of conductive plug pull block (72) can compress tightly the laminating with conical surface (113).

7. The cathodically protected pluggable reference electrode of claim 4, wherein: the pull rod assembly (75) comprises a cylindrical pull rod (751), a first spring (752) and a limiting ring (753), one end of the cylindrical pull rod (751) is fixedly connected with the connecting disc (74), the other end of the cylindrical pull rod (751) penetrates through the electric conduction plug block (72), a cavity four (721) is arranged inside the electric conduction plug block (72), the limiting ring (753) is fixedly arranged on the cylindrical pull rod (751), the first spring (752) is arranged between the limiting ring (753) and the inner wall of the electric conduction plug block (72), the limiting ring (753) is located at one end, close to the connecting disc (74), of the first spring (752), and the limiting ring (753) and the first spring (721) are located in the cavity four (752).

8. The cathodically protected pluggable reference electrode of claim 7, wherein: the locking assembly (76) comprises a second spring (761) and a limiting protrusion (762), a first group of grooves (16) is formed in the electrode body (1), the first group of grooves (16) and the first group of locking assemblies (76) are arranged in a one-to-one correspondence mode, the second spring (761) is arranged in the first groove (16), one end of the limiting protrusion (762) is connected with the second spring (761), and the other end of the limiting protrusion (762) extends out of the first groove (16) to be in contact with the electric conduction plug block (72).

9. The cathodically protected pluggable reference electrode of claim 4, wherein: the end part where the first cavity (11) is located is provided with a second groove (114), and the sealing cover (6) is in threaded connection with the inner wall of the second groove (114).

10. The cathodically protected pluggable reference electrode of claim 9, wherein: and a third sealing ring (115) is arranged between the sealing cover (6) and the second groove (114).