CN203772902U - Grounding device for steel rail electric potential testing - Google Patents
Grounding device for steel rail electric potential testing Download PDFInfo
- Publication number
- CN203772902U CN203772902U CN201420128434.5U CN201420128434U CN203772902U CN 203772902 U CN203772902 U CN 203772902U CN 201420128434 U CN201420128434 U CN 201420128434U CN 203772902 U CN203772902 U CN 203772902U
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- CN
- China
- Prior art keywords
- barred body
- earthing
- rail potential
- test
- top cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a grounding device for steel rail electric potential testing. The grounding device comprises a top cap, a grounding electrode rod body, a testing cable, and binding post boards. The testing cable is connected with the binding post boards. The top of the grounding electrode rod body is fixedly connected with the top cap through a top cap fixing bolt. The middle of the grounding electrode rod body is fixedly connected with the binding post boards through a binding post board fixing bolt. The bottom of the grounding electrode rod body is provided with a tip head. The tip head is soldered on the bottom end portion of the grounding electrode rod body and is fixedly connected with the grounding electrode rod body through a tip head fixing bolt. The grounding device is simple in structure, stable in electrical performance, high in mechanical strength, convenient in use, and simple in maintenance, and is suitable for outdoor field operation. The grounding device for steel rail electric potential testing may also cooperate with other apparatuses and instruments in order to be used for measuring ground resistance values and soil resistivity values.
Description
Technical field
The utility model relates to electrified technical field, relates in particular to a kind of rail potential test earthing device.
Background technology
At present, still there is no the special earthing device of electric railway rail potential test.In test in the past, mostly adopt the bar-shaped metal materials such as iron staff or steel pipe as earthing device.These metal material shapes are often irregular, are not easy to the connection of test cable line and draw; In use be not easy to go deep into soil horizon, can not meet the technical requirement of measurement simultaneously; The easy oxidation corrosion of these metal material surfaces on the other hand, forms high resistance membrane, and the surface resistance contacting with p-wire with soil is larger, has caused larger error to measurement.
Utility model content
The technical problems to be solved in the utility model is, a kind of stronger corrosion resistance that has is provided, and electric stability is strong, the degree of accuracy of test is high, rational in infrastructure, easy to use and safeguard simply, be very suitable for the rail potential test earthing device using in field condition operation.
The utility model solves the technical scheme that its technical matters adopts: a kind of rail potential test earthing device, comprise top cap, earthing pole barred body, test cable and terminal board, described test cable is connected with described terminal board, described earthing pole barred body top is fixedly connected with described top cap by top cap set bolt, described earthing pole barred body middle part is fixedly connected with described terminal board by terminal strip set bolt, described earthing pole barred body is pinnacle head bottom, described pinnacle head welds and is fixedly connected with by a pinnacle set bolt with the barred body bottom of described earthing pole barred body.
Improve as one to technical scheme described in the utility model, described terminal board has two, and the symmetrical cap lower end, described top that is arranged on, is provided with multiple terminal screws on described terminal board.
Improve as the one to technical scheme described in the utility model, described terminal screw has 4, is symmetrically distributed in earthing pole barred body both sides.
Improve as the one to technical scheme described in the utility model, the inner side, barred body bottom of described earthing pole barred body has groove.
Improve as the one to technical scheme described in the utility model, described groove is interior arc groove, and arc diameter is 5mm-7mm.
Improve as the one to technical scheme described in the utility model, described top cap and described pinnacle head are stainless steel material.
Improve as the one to technical scheme described in the utility model, described top cap is right cylinder, diameter 27-32mm, height 40-70mm.
Improve as the one to technical scheme described in the utility model, the material of described earthing pole barred body is copper.
Improve as the one to technical scheme described in the utility model, the xsect of described earthing pole barred body is circular, and diameter is 25 mm left and right.
Improve as the one to technical scheme described in the utility model, also comprise test cable terminal, described rail potential test earthing device is connected with described test cable by described test cable terminal.
Therefore, the rail potential test earthing device that the utility model provides, the top cap of stainless steel in use can not be out of shape and corrosion, the earthing pole barred body of fine copper matter has stronger corrosion resistance and electric stability, contact with soil and can obtain less contact resistance, groove can increase the contact surface area of earthing pole barred body and soil, be conducive to ensure the degree of accuracy of test, also be that barred body is easier to extract from soil, the test connecting line of earthing pole barred body can be drawn by the terminal strip terminal screw from terminal board simultaneously.This rail potential test earthing device is rational in infrastructure, and electrical specification is stable, and physical strength is high, easy to use and safeguard simple, be very suitable for using in field condition operation, can also coordinate with Other Instruments instrument, for the measurement of grounding resistance and soil resistivity value.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the utility model rail potential test earthing device;
Fig. 2 is the cross sectional plan view along AA line in Fig. 1;
Fig. 3 is the terminal board vertical view in Fig. 1;
Schematic diagram when Fig. 4 is the use of the utility model rail potential test earthing device;
Now by as follows the label declaration in accompanying drawing: the 1st, top cap, the 2nd, earthing pole barred body, the 3rd, top cap set bolt, the 4th, terminal screw, the 5th, terminal strip set bolt, the 6th, terminal board, the 7th, groove, 8
Pinnacle head, the 9th, a pinnacle set bolt, the 10th, barred body bottom, the 11st, test cable terminal, the 12nd, test cable, the 13rd, soil.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
In the utility model preferred embodiment, as depicted in figs. 1 and 2, the rail potential test earthing device of the utility model specific embodiment, comprise top cap 1, earthing pole barred body 2, test cable 12 and terminal board 6, test cable 12 is connected with terminal board 6, earthing pole barred body 2 tops are fixedly connected with top cap 1 by top cap set bolt 3, earthing pole barred body 2 middle parts are fixedly connected with terminal board 6 by terminal strip set bolt 5, earthing pole barred body 2 is pinnacle 8 bottom, pinnacle 8 is welded with the barred body bottom 10 of earthing pole barred body 2 and is fixedly connected with by a pinnacle set bolt 9.Terminal board 6 has 2, and symmetrical top cap 1 lower end that is arranged on, is provided with 4 terminal screws 4 on each terminal board 6, be symmetrically distributed in earthing pole barred body 2 both sides.The material of earthing pole barred body 2 is copper, there is stronger corrosion resistance and electric stability, contact with soil and can obtain less contact resistance, earthing pole barred body 2 xsects are the circle of diameter 25mm left and right, its cross-sectional diameter can be in some variation of 25mm left and right, 10 inner sides, barred body bottom of earthing pole barred body 2 have groove 7, groove 7 is interior arc groove, arc diameter is 5mm-7mm, groove can increase the contact surface area of barred body and soil, be conducive to ensure the degree of accuracy of test, be also that barred body is easier to extract from soil simultaneously.
When hitting top cap 1 by the hammer tool such as hammer or weight, because pinnacle 8 is stainless steel material, 2 of earthing pole barred bodies can vertically enter the soil horizon at test point place, the top cap of stainless steel material can ensure in use can not be out of shape and corrosion simultaneously, and top cap 1 is right cylinder, diameter 27-32mm, height 40-70mm, for example, getting its diameter is 27mm, is highly 50mm.
Rail potential test earthing device of the present utility model also comprises test cable terminal 11, calibrating terminal is connected with terminal screw 4, the test connecting line of earthing pole barred body 2 can be drawn by the terminal screw 4 from terminal board 6, terminal screw 4 can manual rotation to be fastenedly connected test cable terminal, rail potential test earthing device is connected with test cable 12 one end by test cable terminal 11, and the other end of test cable connects voltage table 14 or other measurement instrument instrument.
The rail potential test earthing device that the utility model provides, rational in infrastructure, electrical specification is stable, physical strength is high, easy to use and safeguard simply, is very suitable for using in field condition operation, can also coordinate with Other Instruments instrument, for the measurement of grounding resistance and soil resistivity value.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (10)
1. a rail potential test earthing device, it is characterized in that, comprise top cap, earthing pole barred body, test cable and terminal board, described test cable is connected with described terminal board, described earthing pole barred body top is fixedly connected with described top cap by top cap set bolt, described earthing pole barred body middle part is fixedly connected with described terminal board by terminal strip set bolt, described earthing pole barred body is pinnacle head bottom, and described pinnacle head welds and is fixedly connected with by a pinnacle set bolt with the barred body bottom of described earthing pole barred body.
2. rail potential test earthing device according to claim 1, is characterized in that, described terminal board has two, and the symmetrical cap lower end, described top that is arranged on, is provided with multiple terminal screws on described terminal board.
3. rail potential test earthing device according to claim 2, is characterized in that, described terminal screw has 4, is symmetrically distributed in earthing pole barred body both sides.
4. rail potential test earthing device according to claim 1, is characterized in that, the inner side, barred body bottom of described earthing pole barred body has groove.
5. rail potential test earthing device according to claim 4, is characterized in that, described groove is interior arc groove, and arc diameter is 5mm-7mm.
6. rail potential test earthing device according to claim 1, is characterized in that, described top cap and described pinnacle head are stainless steel material.
7. rail potential test earthing device according to claim 6, is characterized in that, described top cap is right cylinder, diameter 27-32mm, height 40-70mm.
8. rail potential test earthing device according to claim 1, is characterized in that, the material of described earthing pole barred body is copper.
9. rail potential test earthing device according to claim 8, is characterized in that, the xsect of described earthing pole barred body is circular, and diameter is 25 mm left and right.
10. rail potential test earthing device according to claim 1, is characterized in that, also comprises test cable terminal, and described rail potential test earthing device is connected with described test cable by described test cable terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128434.5U CN203772902U (en) | 2014-03-20 | 2014-03-20 | Grounding device for steel rail electric potential testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128434.5U CN203772902U (en) | 2014-03-20 | 2014-03-20 | Grounding device for steel rail electric potential testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203772902U true CN203772902U (en) | 2014-08-13 |
Family
ID=51290080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420128434.5U Expired - Fee Related CN203772902U (en) | 2014-03-20 | 2014-03-20 | Grounding device for steel rail electric potential testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203772902U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280652A (en) * | 2014-09-17 | 2015-01-14 | 国家电网公司 | Grounding grid connection testing tool |
| CN104678181A (en) * | 2015-03-23 | 2015-06-03 | 攀钢集团研究院有限公司 | Method for measuring resistivity of steel rail |
| CN110853322A (en) * | 2019-11-18 | 2020-02-28 | 南京铁道职业技术学院 | Rail potential acquisition platform and method |
-
2014
- 2014-03-20 CN CN201420128434.5U patent/CN203772902U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280652A (en) * | 2014-09-17 | 2015-01-14 | 国家电网公司 | Grounding grid connection testing tool |
| CN104678181A (en) * | 2015-03-23 | 2015-06-03 | 攀钢集团研究院有限公司 | Method for measuring resistivity of steel rail |
| CN104678181B (en) * | 2015-03-23 | 2017-09-29 | 攀钢集团研究院有限公司 | Rail resistance rate measuring method |
| CN110853322A (en) * | 2019-11-18 | 2020-02-28 | 南京铁道职业技术学院 | Rail potential acquisition platform and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20150320 |
|
| EXPY | Termination of patent right or utility model |