CN216900635U - Handheld electrode bar for rolling test - Google Patents
Handheld electrode bar for rolling test Download PDFInfo
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- CN216900635U CN216900635U CN202123056731.2U CN202123056731U CN216900635U CN 216900635 U CN216900635 U CN 216900635U CN 202123056731 U CN202123056731 U CN 202123056731U CN 216900635 U CN216900635 U CN 216900635U
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- insulating
- insulating rod
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Abstract
The utility model relates to a handheld electrode bar for rolling test, which belongs to the technical field of power detection equipment and comprises an insulating rod, a support frame and two cylindrical electrode columns, wherein the support frame is rotatably arranged at one end of the insulating rod through a second hinge part; the two electrode columns are rotatably arranged on the support frame, and the axial leads of the two electrode columns are parallel to each other; the middle part of the surface of the electrode column is provided with an arc-shaped groove; two measuring leads penetrate through the insulating rod, and the two measuring leads bypass the support frame and are respectively contacted with the two electrode columns. The surface resistance test convenience of the plane or rod-shaped insulating object is improved through the surfaces of the two electrode columns and the arc-shaped grooves, the test area is effectively increased along with the rolling of the electrode columns, the test time is shortened, and the test efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of electric power detection equipment, and particularly relates to a rolling test handheld electrode bar.
Background
The existing commonly used surface resistance tester is a megger and a handheld fixed electrode bar, the combination mode of the tester is that the positive pole and the negative pole of the megger are respectively connected with two contact heads of the handheld electrode bar through connecting leads, a measurer holds the handle of the electrode bar by hands, and the contact heads touch the surface of a tool to achieve the purpose of measurement.
The existing measuring method has the following defects: when the electrode bar is used for measuring the surface resistance, only point measurement can be carried out, the area of the insulating tool covered by the measuring range is small, and the measuring time is long.
SUMMERY OF THE UTILITY MODEL
The utility model provides a rolling test handheld electrode rod, aiming at solving the problems of small area and long measurement time of surface resistance test in the prior art.
The utility model is realized by the following technical scheme:
a handheld electrode bar for rolling test comprises an insulating rod, a support frame and two cylindrical electrode columns, wherein the support frame is rotatably arranged at one end of the insulating rod through a second hinge; the two electrode columns are rotatably arranged on the support frame, and the axial leads of the two electrode columns are parallel to each other; the middle part of the surface of the electrode column is provided with an arc-shaped groove; two measuring wires penetrate through the insulating rod, and the two measuring wires bypass the support frame and are respectively contacted with the two electrode columns.
The surface resistance test convenience of the plane or rod-shaped insulating object is improved through the surfaces of the two electrode columns and the arc-shaped grooves, the test area is effectively increased along with the rolling of the electrode columns, the test time is shortened, and the test efficiency is improved.
The utility model further improves that the distance between the tangent points of the two electrode columns is 2cm, and the distance between the tangent points of the two arc-shaped grooves is 2 cm. When the electrode is contacted with an insulating object to be tested, the contact points on the two electrode columns are always kept at a fixed distance, and the accuracy of the test is ensured.
The utility model further improves the structure that the supporting frame comprises a main board and an auxiliary board, wherein the main board is arranged on the insulating rod, one end of the auxiliary board, which is far away from the insulating rod, is connected with the main board through a first hinge part, and one end of the auxiliary board, which is close to the insulating rod, is connected with the main board through an insulating spring; and the two electrode columns are rotatably arranged on one surface of the auxiliary plate, which is deviated from the main plate. Under insulating spring's effect, the rear end of subplate forms the contained angle with the mainboard separation, when there is great contained angle in insulator spindle and the insulating object that awaits measuring, guarantees two electrode posts and the contact of the insulating object that awaits measuring throughout to improve operation personnel operation convenience.
In a further improvement of the present invention, the first hinge is rotatably disposed on the main plate. The auxiliary plate can rotate relative to the main plate through the first hinge, so that a good operation effect can be formed when an included angle exists between the insulating rod and the advancing direction of the electrode column.
The utility model further improves that a baffle is arranged at one end of the main board close to the insulating rod. The structural strength of the tail end of the main board is increased by arranging the baffle.
The utility model is further improved in that one surface of the support frame, which is far away from the electrode column, is provided with a guide groove for arranging the measuring lead, and the guide groove is provided with a fixing clamp for fixing the measuring lead. The measuring wires passing through the supporting frame are arranged by embedding the measuring wires into the guide grooves and fixing the measuring wires through the fixing cards.
The utility model further improves that the insulating rod is embedded with a supporting tube for the measurement lead to pass through. The support strength of the insulating rod is increased through the support pipe.
According to the technical scheme, the utility model has the beneficial effects that: the surface resistance test convenience of the plane or rod-shaped insulating object is improved through the surfaces of the two electrode columns and the arc-shaped grooves, the test area is effectively increased along with the rolling of the electrode columns, the test time is shortened, and the test efficiency is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a first structural diagram of an embodiment of the present invention.
Fig. 2 is a second structural diagram of the embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a supporting frame according to an embodiment of the present invention.
Fig. 4 is a partial schematic view of an insulation rod according to an embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view of an electrode column according to an embodiment of the present invention.
In the drawings: 1. insulating rod, 11, support tube, 2, measurement wire, 3, support frame, 31, mainboard, 32, subplate, 33, insulating spring, 34, second articulated elements, 35, baffle, 36, first articulated elements, 37, guide way, 38, fixing clip, 4, electrode post, 41, arc recess.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
As shown in the attached drawing, the handheld electrode rod for the rolling test comprises an insulating rod 1, a support frame 3 and two cylindrical electrode columns 4, wherein the support frame 3 is rotatably arranged at one end of the insulating rod 1. The included angle between the support frame 3 and the insulating rod 1 can be adjusted according to the positions of an insulating object to be tested and an operator, so that the optimal operation angle is achieved.
Specifically, the support frame 3 includes a main plate 31 and a secondary plate 32, the main plate 31 is hinged to the insulating rod 1 through a second hinge 34, and during the rotation operation, the moving track of the axis of the insulating rod 1 and the moving track of the central axis of the main plate 31 are on the same vertical plane. The main board 31 is provided with a baffle 35 near one end of the insulating rod 1. The structural strength of the rear end of the main plate 31 is increased by the provision of the baffle 35.
The end of the secondary plate 32 facing away from the insulating rod 1 is connected to the main plate 31 by a first hinge 36. The first hinge 36 is rotatably disposed on the main plate 31. The sub-plate 32 is pivoted relative to the main plate 31 by the first hinge 36, so that good operation can be achieved even when the insulation rod 1 is at an angle to the direction of travel of the electrode column 4. One end of the auxiliary plate 32 close to the insulating rod 1 is connected with the main plate 31 through an insulating spring 33; the two electrode columns 4 are rotatably arranged on one side of the auxiliary plate 32, which is far away from the main plate 31. Under insulating spring 33's effect, the rear end of subplate 32 and mainboard 31 separation form the contained angle, when insulator spindle 1 and the insulating object that awaits measuring have great contained angle, guarantee two electrode posts 4 and the contact of the insulating object that awaits measuring all the time to improve operation personnel operation convenience.
The two electrode columns 4 are rotatably arranged on the auxiliary plate 32, and the axial leads of the two electrode columns 4 are parallel to each other; the middle part of the surface of the electrode column 4 is provided with an arc-shaped groove 41; the distance between the tangent points of the two electrode columns 4 is 2cm, and the distance between the tangent points of the two arc-shaped grooves 41 is 2 cm. When the electrode is contacted with an insulating object to be tested, the contact points on the two electrode columns 4 are always kept at a fixed distance, and the accuracy of the test is ensured.
The auxiliary plate 32 is provided with an ear plate for supporting the electrode column 4, and the electrode column 4 is arranged on the ear plate through a pin shaft.
In the initial position, the axial leads of the two electrode columns 4 are both perpendicular to the axial lead of the insulating rod 1.
Two measuring wires 2 penetrate through the insulating rod 1, and the two measuring wires 2 bypass the main board 31 and are respectively contacted with the two electrode columns 4. And a supporting tube 11 for the measurement lead 2 to pass through is embedded in the insulating rod 1. The support strength of the insulating rod 1 is increased by the support tube 11.
The surface of the support frame 3 departing from the electrode column 4 is provided with a guide groove 37 for the arrangement of the measuring lead 2, and the guide groove 37 is provided with a fixing clip 38 for fixing the measuring lead 2. The measuring conductors 2 passing over the support frame 3 are trimmed by inserting the measuring conductors 2 into the guide grooves 37 and fixing them by means of the fixing clips 38.
One end of each of the two measuring leads 2 close to the electrode column 4 is respectively connected with the pin shafts on the two electrode columns 4, the other end of each of the two measuring leads is connected with the megger, one of the two measuring leads 2 is connected with the anode of the megger, and the other measuring lead is connected with the cathode of the megger. The megameter voltage is 2500V.
The measurer operates the insulating rod 1 to adjust the angle between the main board 31 and the insulating rod 1 in advance according to the position of the insulating object to be measured, and the two electrode columns 4 are always kept in contact with the insulating object to be measured at the same time under the action of the insulating spring 33 so as to measure the resistance along the surface.
The main plate 31, the sub-plate 32, the first hinge 36, the second hinge 34, the ear plate and the baffle 35 are all made of insulating materials. To ensure the accuracy of the measurement results.
In practical operation, it is most often used that also most rod-shaped insulating objects to be measured have a diameter of 4 cm. Therefore, a rod-shaped insulating object to be measured with a diameter of 4cm is taken as an example:
the length L of the electrode column 4 in the axial direction1Is 3.92 cm;
the axial length L of the contact part of the two sides of the arc-shaped groove 41 and the plane insulation object2Is 1 cm;
the arc length of the arc groove 41 in the axial direction of the electrode column 4 is L3Is 2 cm; the central angle corresponding to the arc-shaped groove 41 is 1 radian;
the depth L of the arc-shaped groove 41 in the radial direction of the electrode column 44Is 0.24 cm;
the length of the arc-shaped groove 41 in the axial direction of the electrode column 4 is L5Is 1.92 cm;
the edges of the two ends of the electrode column 4 are in a chamfer shape, and the thickness of the edge at the chamfer position is L6Is 0.1 cm;
so that the arc-shaped groove 41 can improve the fitting degree with a rod-shaped insulating object when the rod-shaped insulating object with the diameter of 4cm is tested. The chamfered edges at the two ends of the electrode column 4 avoid wear when in contact with a planar insulating object.
According to the rolling test handheld electrode rod, the surface resistance test convenience of a plane or rod-shaped insulating object is improved through the surfaces of the two electrode columns and the arc-shaped groove, the test area is effectively increased along with the rolling of the electrode columns, the test time is shortened, and the test efficiency is improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The handheld electrode bar for the rolling test is characterized by comprising an insulating rod (1), a support frame (3) and two cylindrical electrode columns (4), wherein the support frame (3) is rotatably arranged at one end of the insulating rod (1) through a second hinge component (34); the two electrode columns (4) are rotatably arranged on the support frame (3), and the axial leads of the two electrode columns (4) are parallel to each other; the middle part of the surface of the electrode column (4) is provided with an arc-shaped groove (41); two measuring wires (2) penetrate through the insulating rod (1), and the two measuring wires (2) bypass the support frame (3) and the two electrode columns (4) to be respectively contacted.
2. The rolling test hand-held electrode bar according to claim 1, characterized in that the distance between the tangents of the two electrode columns (4) is 2cm and the distance between the tangents of the two arc-shaped grooves (41) is 2 cm.
3. The rolling test handheld electrode rod is characterized in that the support frame (3) comprises a main plate (31) and a secondary plate (32), the main plate (31) is mounted on the insulating rod (1), one end of the secondary plate (32) away from the insulating rod (1) is connected with the main plate (31) through a first hinge piece (36), and one end of the secondary plate (32) close to the insulating rod (1) is connected with the main plate (31) through an insulating spring (33); the two electrode columns (4) are rotatably arranged on one surface of the auxiliary plate (32) departing from the main plate (31).
4. A roll testing hand-held electrode rod according to claim 3, characterized in that the first hinge member (36) is pivotally arranged on the main plate (31).
5. A roll testing hand-held electrode rod according to claim 3, characterized in that the main plate (31) is provided with a baffle (35) near one end of the insulating rod (1).
6. The rolling test handheld electrode rod is characterized in that one surface, away from the electrode column (4), of the support frame (3) is provided with a guide groove (37) for arranging the measuring lead (2), and a fixing clamp (38) for fixing the measuring lead (2) is arranged on the guide groove (37).
7. A roll testing hand-held electrode rod according to claim 1, characterized in that a support tube (11) for a measuring wire (2) to pass through is embedded in the insulating rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123056731.2U CN216900635U (en) | 2021-12-06 | 2021-12-06 | Handheld electrode bar for rolling test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123056731.2U CN216900635U (en) | 2021-12-06 | 2021-12-06 | Handheld electrode bar for rolling test |
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| Publication Number | Publication Date |
|---|---|
| CN216900635U true CN216900635U (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123056731.2U Active CN216900635U (en) | 2021-12-06 | 2021-12-06 | Handheld electrode bar for rolling test |
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| CN (1) | CN216900635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114236238A (en) * | 2021-12-06 | 2022-03-25 | 国网山东省电力公司聊城供电公司 | Handheld electrode bar for rolling test |
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2021
- 2021-12-06 CN CN202123056731.2U patent/CN216900635U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114236238A (en) * | 2021-12-06 | 2022-03-25 | 国网山东省电力公司聊城供电公司 | Handheld electrode bar for rolling test |
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