CN217007105U - Working electrode for measuring oxidation-reduction potential - Google Patents
Working electrode for measuring oxidation-reduction potential Download PDFInfo
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- CN217007105U CN217007105U CN202220777827.3U CN202220777827U CN217007105U CN 217007105 U CN217007105 U CN 217007105U CN 202220777827 U CN202220777827 U CN 202220777827U CN 217007105 U CN217007105 U CN 217007105U
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- reduction potential
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Abstract
The utility model belongs to the technical field of working electrodes, and particularly relates to a working electrode for measuring oxidation-reduction potential, which comprises a shell, wherein the shell is provided with a detection port, a sensitive element is arranged in the shell and close to the detection port, the sensitive element is connected with an electrode rod, the electrode rod is connected with a lead, the lead penetrates out of the shell, and the sensitive element, the electrode rod and the lead are arranged in an insulating way with the shell. The working electrode for measuring the oxidation-reduction potential is simple in structure, the sensing element is in contact with a substance to be measured when the working electrode is used, the equilibrium potential is quickly established on the surface of the sensing element, and the response speed is high.
Description
Technical Field
The utility model belongs to the technical field of working electrodes, and particularly relates to a working electrode for measuring oxidation-reduction potential.
Background
The oxidation-reduction potential is an index of the redox reaction status, and the higher the oxidation-reduction potential is, the stronger the oxidizing property is, and the lower the potential is, the weaker the oxidizing property is. A positive potential indicates some oxidizing properties, while a negative potential indicates reducing properties. At present, a working electrode is usually used for measuring the oxidation-reduction potential, is usually used for detecting the oxidation-reduction potential of soil, aqueous solution and the like, and has important significance, and the working electrode is an electrode which can cause the concentration of a component to be detected in a test solution to be obviously changed in the test process.
At present, a few working electrodes specially used for measuring oxidation-reduction potential are available on the market, most of the working electrodes are complex in structure, response speed is slow, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a working electrode for measuring oxidation-reduction potential, which has simple structure and quick use and solves the technical problems of complex structure, slow response speed and inconvenient use of the existing working electrode for measuring oxidation-reduction positioning.
In order to achieve the technical purpose, the technical scheme of the utility model is as follows:
the utility model provides a working electrode for measuring redox potential, includes the casing, the casing is equipped with the opening, be close to the detection port in the casing and be equipped with sensing element, sensing element connects the electrode bar, electrode bar connecting wire, the wire is worn out the casing, sensing element, electrode bar and wire with the casing is insulating to be set up.
As an improvement, the electrode rod is sleeved with an insulating sleeve, one end of the electrode rod, which is connected with a lead, extends out of the insulating sleeve, and a potting insulating glue layer is arranged between the lead, the electrode rod extending out of the insulating sleeve and the inner wall of the shell.
As a further improvement, one end of the insulating sleeve, which is close to the sensitive element, is provided with a groove, and the sensitive element is positioned in the groove.
As a further improvement, the shell is provided with an opening far away from the detection port and is detachably provided with a cap body, and the lead penetrates out of the cap body.
As a further improvement, the cap body is provided with a cap body screw hole, an extension rod is installed in the cap body screw hole in a threaded mode, one end of the extension rod is provided with an extension stud, the other end of the extension rod is provided with an extension screw hole, and the extension stud is in threaded fit with the cap body screw hole.
As a further improvement, a sheath is connected to the detection port of the shell.
As a further improvement, one end of the sheath is in threaded connection with the shell, the other end of the sheath is provided with three blade arms, one ends of the three blade arms are connected to form a blade tip, and a detection gap is reserved between the blade arms.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that:
the working electrode for measuring the oxidation-reduction potential is simple in structure, the sensitive element is in contact with a substance to be measured when the working electrode is used, the balance potential is quickly established on the surface of the sensitive element, and the response speed is high.
The electrode rod is sleeved with an insulating sleeve to insulate the electrode rod from the shell, one end of the electrode rod, which is connected with a lead, extends out of the insulating sleeve, so that the electrode rod and the lead are convenient to connect, the lead and the electrode rod extending out of the insulating sleeve are fixed with the shell by a filling and sealing insulating adhesive layer arranged between the inner wall of the shell, and the electrode rod, the sensitive element and the lead are insulated from the shell.
One end of the insulating sleeve, which is close to the sensitive element, is provided with a groove, and the sensitive element is positioned in the groove, so that the sensitive element is convenient to fix and is insulated from the shell.
The casing is kept away from the detection mouth and is equipped with the opening and can dismantle and be equipped with the cap body, and the extension rod can be connected to the production equipment of being convenient for, the cap body in addition, and the extension rod is equipped with extension double-screw bolt and extension screw, can connect other extension rod again, and convenient to use is measured to the length that the convenience set up reasonable extension rod as required uses.
The detection mouth of casing is connected with the sheath, plays the guard action to sensitive original paper, and the one end and the casing threaded connection of sheath, the other end are equipped with three sword arm, and the one end of three sword arm is connected and is formed the sword point, leaves the detection space between the sword arm, sets up the sword arm and is convenient for stretch into solid determinand such as soil and carry out measurement operation.
Drawings
FIG. 1 is a schematic view of the internal structure of an embodiment of the present invention;
FIG. 2 is a schematic view of the extension pole;
FIG. 3 is a schematic structural diagram of an embodiment of the present invention;
in the attached drawing, 1-shell, 2-sensitive element, 3-electrode bar, 4-lead, 5-insulating sleeve, 6-encapsulating insulating glue layer, 7-cap body, 71-cap body screw hole, 8-extension rod, 81-extension stud, 82-extension screw hole, 9-sheath, 91-blade arm and 92-blade tip.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
As shown in fig. 1 to 3, a working electrode for measuring oxidation-reduction potential includes a housing, the housing is generally cylindrical, the housing 1 is provided with a detection port, the detection port is generally located at one end of the housing, a sensing element 2 is arranged in the housing near the detection port, the sensing element is connected with an electrode rod 3, the electrode rod is connected with a lead 4, the lead penetrates out of the housing and specifically penetrates out from one end far away from the detection port, and the sensing element, the electrode rod and the lead are insulated from the housing, wherein the sensing element may be an inert metal electrode such as platinum, gold, silver, or the like, or a glassy carbon electrode.
The working electrode for measuring the oxidation-reduction potential is simple in structure, and when the working electrode is used, the sensitive element is in contact with a substance to be measured, so that the balance potential is quickly established on the surface of the sensitive element, and the response speed is high.
In this embodiment, the electrode rod is a conductor rod with good conductivity, preferably a gold-plated copper rod, which has good conductivity, and is provided with a gold plating layer for facilitating connection with a wire, and of course, a conductor rod made of aluminum or other material may be used, and a gold or silver plating layer may be provided.
In this embodiment, the electrode rod is sleeved with the insulating sleeve 5 to insulate the electrode rod from the casing, one end of the electrode rod connecting wire extends out of the insulating sleeve, so that the electrode rod and the wire are connected in a welding manner, a potting insulating glue layer 6 is arranged between the wire and the electrode rod extending out of the insulating sleeve and the inner wall of the casing, the potting insulating glue layer adopts a potting process during assembly, the electrode rod, the sensitive element, the wire and the insulating sleeve are fixed and insulated from the casing, preferably, the insulating sleeve is a plastic insulating sleeve, specifically, a polytetrafluoroethylene sleeve can be selected, the potting insulating glue layer is epoxy resin, and other insulating glue types can be adopted, the polytetrafluoroethylene sleeve and the epoxy resin are common materials in the field, the cost is low, the use is convenient, other materials can be adopted certainly, and the limitation is not limited herein.
In this embodiment, the insulating cover is equipped with the recess near the one end of sensing element, and the sensing element is located the recess, and specifically, the recess adopts interference fit with the sensing element, is convenient for fix the sensing element, and is insulating with the casing, and specifically, the sensing element is connected with electrode bar welded.
In this embodiment, the casing is kept away from the detection mouth and is set up the opening and can dismantle and be equipped with the cap body 7, specifically can be threaded connection, the production equipment of being convenient for, the cap body is equipped with the through-hole, and the wire passes through the through-hole and wears out the cap body.
In this embodiment, be equipped with cap body screw 71 on the cap body, extension rod 8 is installed to cap body screw thread, and the one end of extension rod is equipped with extension double-screw bolt 81, and the other end is equipped with extension screw 82, extension double-screw bolt and cap body screw thread fit, cap body connection extension rod, additional extension rod can be connected again to the extension rod, and the convenience sets up the length of reasonable extension rod as use needs, measures convenient to use.
In this embodiment, the detection mouth of casing is connected with sheath 9, plays the guard action to sensitive original paper, specifically, the one end and the casing threaded connection of sheath, and the convenient dismantlement, the sheath other end are equipped with three sword arm 91, and the one end of three sword arm is connected and is formed the sword point 92, leaves the detection space between the sword arm, is convenient for stretch into and carry out measurement operation in solid determinand such as soil.
The working electrode for measuring the oxidation-reduction potential provided by the utility model has the advantages of simple structure, rapidness in assembly, high response speed and high measurement precision, is calibrated by a standard equipment potentiometer, has the measurement precision within +/-1%, and can be used for measuring the oxidation-reduction potential of soil and various aqueous solutions.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. The utility model provides a working electrode for measuring redox potential, includes the casing, its characterized in that, the casing is equipped with detects the mouth, be close to in the casing and detect the mouth and be equipped with sensing element, sensing element connects the electrode bar, electrode bar connecting wire, the wire is worn out the casing, sensing element, electrode bar and wire with the casing is insulating to be set up.
2. The working electrode for measuring oxidation-reduction potential according to claim 1, wherein the electrode rod is sleeved with an insulating sleeve, one end of the electrode rod connected with the lead extends out of the insulating sleeve, and a potting insulating glue layer is arranged between the lead and the electrode rod extending out of the insulating sleeve and the inner wall of the shell.
3. The working electrode for measuring oxidation-reduction potential of claim 2 wherein the insulating sleeve has a recess at an end adjacent the sensing element, the sensing element being located within the recess.
4. A working electrode for measuring redox potential according to any of claims 1 to 3 wherein the housing is provided with an opening remote from the sensing port and is removably provided with a cap through which the lead wire passes.
5. The working electrode for measuring redox potential of claim 4 wherein the cap body is provided with a cap body screw hole, the cap body screw hole is threaded with an extension rod, one end of the extension rod is provided with an extension stud, the other end is provided with an extension screw hole, the extension stud is in threaded fit with the cap body screw hole.
6. The working electrode for measuring oxidation-reduction potential of any one of claims 1 to 3 wherein a sheath is attached to the sensing port of the housing.
7. The working electrode for measuring oxidation-reduction potential of claim 6 wherein one end of said sheath is threaded into said housing and the other end is provided with three blade arms, one end of said three blade arms being connected to form a blade point, said blade arms leaving a sensing gap therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220777827.3U CN217007105U (en) | 2022-04-01 | 2022-04-01 | Working electrode for measuring oxidation-reduction potential |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220777827.3U CN217007105U (en) | 2022-04-01 | 2022-04-01 | Working electrode for measuring oxidation-reduction potential |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217007105U true CN217007105U (en) | 2022-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220777827.3U Active CN217007105U (en) | 2022-04-01 | 2022-04-01 | Working electrode for measuring oxidation-reduction potential |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217007105U (en) |
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2022
- 2022-04-01 CN CN202220777827.3U patent/CN217007105U/en active Active
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