CN202734734U - Tool for measuring bending radius of triangular cable - Google Patents
Tool for measuring bending radius of triangular cable Download PDFInfo
- Publication number
- CN202734734U CN202734734U CN 201220371702 CN201220371702U CN202734734U CN 202734734 U CN202734734 U CN 202734734U CN 201220371702 CN201220371702 CN 201220371702 CN 201220371702 U CN201220371702 U CN 201220371702U CN 202734734 U CN202734734 U CN 202734734U
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- Prior art keywords
- bending radius
- ruler
- rack
- tool
- cable
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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 5
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 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
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a tool for measuring a bending radius of triangular cable. The main technical characteristics are that the tool comprises a horizontal ruler rack, a vertical ruler rack and a movable ruler, wherein one end of the vertical ruler rack is fixedly disposed in the middle portion of the horizontal ruler rack, and the other end of the vertical ruler rack is hinged to the movable ruler through a rotation shaft; and the movable ruler is close to the horizontal ruler rack and makes circumferential rotation taking the rotation shaft as the center of a circle. The utility model provides a tool for directly measuring the bending radius of a power cable. During a use process, two vertices of the horizontal ruler rack and one vertex of the vertical ruler rack are fixed on the bending part of the power cable, and the bending radius of an arc can be directly read by adjusting the position of the movable 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 triangle 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, triangle 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 triangle Cable Bending Radius survey instrument, comprise surveyor's staff frame, miter square frame and adjustable rule, one end of miter square frame is packed in the middle part of surveyor's staff frame, the other end of miter square frame is hinged by rotating shaft and adjustable rule, adjustable rule take rotating shaft as the center of circle and press close to the surveyor's staff frame and do circular-rotation.
And, be shaped with the scale that calculates Cable Bending Radius at adjustable rule.
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 with the adjustable rule that is carved with bending radius by surveyor's staff frame and miter square frame, in use a summit of two summits of surveyor's staff frame and miter square frame is fixed on the crooked position of power cable, can directly read the bending radius of circular arc by the position of regulating adjustable rule, 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 measuring principle schematic diagram of the present utility model.
Concrete body embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of triangle Cable Bending Radius survey instrument, as shown in Figure 1, comprise surveyor's staff frame 1, miter square frame 3 and adjustable rule 4, one end of miter square frame is packed in the middle part of surveyor's staff frame, the other end of miter square frame is hinged by rotating shaft 2 and adjustable rule, adjustable rule take rotating shaft as the center of circle and press close to the surveyor's staff frame and do circular-rotation.In order to measure intuitively the turning of cable radius, be shaped with the scale 5 that calculates Cable Bending Radius at adjustable rule.
Below in conjunction with Fig. 2, measuring principle of the present utility model is described.Among the figure, miter square frame and surveyor's staff frame are respectively ab and cd, and ab and cd be vertically intersected on the mid point b of c d, and adjustable rule ae can move in a circle as the center of circle take a point.By measuring the upper line segment length of adjustable rule ae, can be by simple computing formula, just can convert exactly and obtain the bending radius of cable camber line: suppose that the af segment length is x on the adjustable rule, the regular length of miter square frame ab is y, 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 adjustable rule ae, form the adjustable rule ae that is carved with Cable Bending Radius.The total length of supposing adjustable rule ae is L, and then the bending radius scope of this survey instrument measurement is
In using at the scene the utility model is positioned over the crooked position of cable, make surveyor's staff frame cd and can intersect at the circular arc of cable bend the f point, and a of miter square frame point just be positioned at the cable circular arc certain a bit on, regulating adjustable rule ae makes it to intersect at f point and surveyor's staff frame cd, directly read the scale on the adjustable rule ae on the f point, 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. triangle Cable Bending Radius survey instrument, it is characterized in that: comprise surveyor's staff frame, miter square frame and adjustable rule, one end of miter square frame is packed in the middle part of surveyor's staff frame, the other end of miter square frame is hinged by rotating shaft and adjustable rule, adjustable rule take rotating shaft as the center of circle and press close to the surveyor's staff frame and do circular-rotation.
2. triangle Cable Bending Radius survey instrument according to claim 1 is characterized in that: be shaped with the scale that calculates Cable Bending Radius at adjustable rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371702 CN202734734U (en) | 2012-07-30 | 2012-07-30 | Tool for measuring bending radius of triangular cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371702 CN202734734U (en) | 2012-07-30 | 2012-07-30 | Tool for measuring bending radius of triangular cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202734734U true CN202734734U (en) | 2013-02-13 |
Family
ID=47660424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220371702 Expired - Lifetime CN202734734U (en) | 2012-07-30 | 2012-07-30 | Tool for measuring bending radius of triangular cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202734734U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588709A (en) * | 2017-09-18 | 2018-01-16 | 国网山东省电力公司济南供电公司 | A kind of power cable radius of turn measuring scale |
| 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 |
-
2012
- 2012-07-30 CN CN 201220371702 patent/CN202734734U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588709A (en) * | 2017-09-18 | 2018-01-16 | 国网山东省电力公司济南供电公司 | A kind of power cable radius of turn measuring scale |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
|
| CX01 | Expiry of patent term |