CN202734733U - Tool for measuring bending radius of umbrella-shaped cable - Google Patents
Tool for measuring bending radius of umbrella-shaped cable Download PDFInfo
- Publication number
- CN202734733U CN202734733U CN 201220371701 CN201220371701U CN202734733U CN 202734733 U CN202734733 U CN 202734733U CN 201220371701 CN201220371701 CN 201220371701 CN 201220371701 U CN201220371701 U CN 201220371701U CN 202734733 U CN202734733 U CN 202734733U
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- ruler
- bending radius
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- tool
- cable
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- Expired - Fee Related
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- 238000005452 bending Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model relates to a tool for measuring a bending radius of an umbrella-shaped cable. The main technical characteristics are that the tool comprises a horizontal ruler rack, a movable straight ruler and a couple of movable connecting rods, wherein a pulley is disposed in a through hole in a middle portion of the horizontal ruler rack; the movable straight ruler vertically penetrates through the through hole and then is disposed together with the pulley in a sliding manner; a top end of the movable straight ruler is hinged to the pair of movable connecting rods; and the other ends of the movable connecting rods are disposed in a chute provided in the surface of the horizontal ruler rack. A tool for directly measuring the bending radius of the power cable is provided. During a use process, the horizontal ruler rack is moved up and down so that the upper end point of the movable straight ruler and the two vertices of the horizontal ruler rack are fixed in the bending part of the power cable, and the bending radius of the arc of the cable can be obtained by directly reading the scale on the movable straight ruler. The tool is characterized by high measurement precision, convenience for use and wide measuring range.
Description
Technical field
The utility model belongs to the power cable field, especially a kind of umbrella shape Cable Bending Radius survey instrument.
Background technology
In the laid processes of power cable, should carry out in strict accordance with national standard and relevant regulations, with the function that guarantees that power cable is brought into normal play.According to national standard, power cable is in laid processes, and its bending radius should be less than 20 times of its diameter D.At present, pair instrument that the power cable bending radius is directly measured is not yet arranged, common measuring method is to measure in advance cable size, re-use steel plate and make the circular arc guiding ruler of respective diameters, use at the construction field (site) at last the circular arc guiding ruler to measure, its measuring method is very inconvenient, and measuring accuracy is lower.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of reasonable in design, umbrella shape Cable Bending Radius survey instrument that measuring accuracy is high and easy to use is provided.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of umbrella shape Cable Bending Radius survey instrument, comprise surveyor's staff frame, movable ruler and a pair of movable rod, in the through hole that surveyor's staff frame middle part is shaped with, pulley is installed, movable ruler vertically passes this through hole and is slidingly installed together with pulley, the top of this activity ruler is hinged by rotating shaft and a pair of movable rod, and the other end of each movable rod is installed in the slideway that surveyor's staff frame surface is shaped with.
And, be shaped with the scale that calculates Cable Bending Radius at movable ruler.
Advantage of the present utility model and good effect are:
The utility model provides a kind of instrument of direct measurement power cable bending radius, it links together by surveyor's staff frame, a pair of movable rod and the movable ruler that is carved with bending radius, in use move up and down the crooked position that two summits that the surveyor's staff frame makes the upper extreme point of movable ruler and surveyor's staff frame are fixed on power cable, directly read the bending radius that scale on the movable ruler just can obtain the cable circular arc, have that measuring accuracy is high, easy to use and measurement range is extensive.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is measuring principle schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of umbrella shape Cable Bending Radius survey instrument, as shown in Figures 1 and 2, comprise surveyor's staff frame 1, movable ruler 3 and a pair of movable rod 5, vertical direction at surveyor's staff frame middle part is shaped with through hole and pulley 6 is installed in this through hole, movable ruler vertically passes in the through hole at surveyor's staff frame middle part and is slidingly installed together with pulley in the through hole, the top of this activity ruler is hinged by rotating shaft 2 and a pair of movable rod, the other end of each movable rod is installed in the slideway 7 that surveyor's staff frame horizontal surface is shaped with, and drives other end horizontal slip in the slideway of surveyor's staff frame of movable rod when the surveyor's staff frame moves up and down.In order to measure intuitively the turning of cable radius, be shaped with the scale 4 that calculates Cable Bending Radius at movable ruler.
Below in conjunction with Fig. 3 measuring principle of the present utility model is described.Among the figure, the mid point of surveyor's staff frame ab is g, movable ruler cd passes in the through hole of the mid point g of surveyor's staff frame ab, surveyor's staff frame ab moves up and down along movable ruler cd, and remain vertical with movable ruler cd, when surveyor's staff frame ab moved up and down, movable rod ce and cf other end e, f were along horizontal slip in the slideway that is shaped with on the surveyor's staff frame ab.Measure after the length of cg section on the ruler by simple computing formula, calculate exactly the bending radius of cable camber line.Its computing method are: the regular length of supposing movable rod is x, and the length of cg section is y on the movable ruler, and then this Cable Bending Radius r satisfies:
In order to measure intuitively Cable Bending Radius, the calculated value of above-mentioned Cable Bending Radius r can be engraved on the movable ruler cd, form the movable ruler cd that is carved with Cable Bending Radius.The total length of supposing activity ruler cd is L, then the bending radius scope measured of this survey instrument be from
To infinitely great.
In using at the scene the summit c of movable ruler is positioned over the center of arc point position maintenance that the turning of cable forms motionless, slide up and down surveyor's staff frame cd, the position that the e of movable rod, f are ordered changes thereupon, until e, f point drops on the cable circular arc simultaneously, read the scale at the upper g point place of movable ruler cd, can directly obtain the bending radius of cable, its measuring method is simple, and measurement range is extensive.
It is emphasized that; embodiment described in the utility model is illustrative; rather than determinate; therefore the utility model comprises and is not limited to the embodiment described in the embodiment; every by those skilled in the art according to other embodiments that the technical solution of the utility model draws, belong to equally the scope of the utility model protection.
Claims (2)
1. umbrella shape Cable Bending Radius survey instrument, it is characterized in that: comprise surveyor's staff frame, movable ruler and a pair of movable rod, in the through hole that surveyor's staff frame middle part is shaped with, pulley is installed, movable ruler vertically passes this through hole and is slidingly installed together with pulley, the top of this activity ruler is hinged by rotating shaft and a pair of movable rod, and the other end of each movable rod is installed in the slideway that surveyor's staff frame surface is shaped with.
2. umbrella shape Cable Bending Radius survey instrument according to claim 1 is characterized in that: be shaped with the scale that calculates Cable Bending Radius at movable ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371701 CN202734733U (en) | 2012-07-30 | 2012-07-30 | Tool for measuring bending radius of umbrella-shaped cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371701 CN202734733U (en) | 2012-07-30 | 2012-07-30 | Tool for measuring bending radius of umbrella-shaped cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202734733U true CN202734733U (en) | 2013-02-13 |
Family
ID=47660423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220371701 Expired - Fee Related CN202734733U (en) | 2012-07-30 | 2012-07-30 | Tool for measuring bending radius of umbrella-shaped cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202734733U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335612A (en) * | 2013-06-05 | 2013-10-02 | 上海南洋-藤仓电缆有限公司 | Elevator traveling cable bending diameter detection device and elevator traveling cable bending diameter detection method |
| CN105318807A (en) * | 2014-06-05 | 2016-02-10 | 江苏华阳金属管件有限公司 | Circular steel pipe diameter measuring tool |
| CN109839084A (en) * | 2019-01-25 | 2019-06-04 | 国家电网有限公司 | A kind of turning radius detection device of high voltage single-core cable, system and method |
| CN110360918A (en) * | 2019-08-22 | 2019-10-22 | 国网天津市电力公司 | Cable Bending Radius checks and accepts qualitative tool |
| CN111928760A (en) * | 2020-08-19 | 2020-11-13 | 山西汾西重工有限责任公司 | Cable test tool |
| CN113624103A (en) * | 2021-08-20 | 2021-11-09 | 中邮通建设咨询有限公司 | Cable bending radius detection ruler |
-
2012
- 2012-07-30 CN CN 201220371701 patent/CN202734733U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335612A (en) * | 2013-06-05 | 2013-10-02 | 上海南洋-藤仓电缆有限公司 | Elevator traveling cable bending diameter detection device and elevator traveling cable bending diameter detection method |
| CN103335612B (en) * | 2013-06-05 | 2015-12-23 | 上海南洋-藤仓电缆有限公司 | Elevator trailing cable bending diameter pick-up unit and method |
| CN105318807A (en) * | 2014-06-05 | 2016-02-10 | 江苏华阳金属管件有限公司 | Circular steel pipe diameter measuring tool |
| CN109839084A (en) * | 2019-01-25 | 2019-06-04 | 国家电网有限公司 | A kind of turning radius detection device of high voltage single-core cable, system and method |
| CN110360918A (en) * | 2019-08-22 | 2019-10-22 | 国网天津市电力公司 | Cable Bending Radius checks and accepts qualitative tool |
| CN111928760A (en) * | 2020-08-19 | 2020-11-13 | 山西汾西重工有限责任公司 | Cable test tool |
| CN113624103A (en) * | 2021-08-20 | 2021-11-09 | 中邮通建设咨询有限公司 | Cable bending radius detection ruler |
| CN113624103B (en) * | 2021-08-20 | 2024-03-29 | 中邮通建设咨询有限公司 | Cable bending radius detecting ruler |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20190730 |