CN207570457U - A kind of arc radius survey tool - Google Patents
A kind of arc radius survey tool Download PDFInfo
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- CN207570457U CN207570457U CN201721711513.9U CN201721711513U CN207570457U CN 207570457 U CN207570457 U CN 207570457U CN 201721711513 U CN201721711513 U CN 201721711513U CN 207570457 U CN207570457 U CN 207570457U
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Abstract
The utility model is related to survey tool technical fields, more specifically, it is related to a kind of arc radius survey tool, including measuring sub-arm, it measures sub-arm both ends and is provided with pulley, the line for measuring two head sheave of sub-arm is parallel with the axis for measuring sub-arm, measures and is provided with range unit, display device and controller on sub-arm, controller is electrically connected respectively with range unit and display device, and range unit is installed on the midpoint for measuring sub-arm.Two head sheaves are close to circular arc to be detected, the arc radius of surveyed circular arc is calculated by controller, and result of calculation is shown on the desplay apparatus automatically for the size of each component part of data and survey tool measured by range unit；Pulley can be to making survey tool carry out slip measurement on circular arc, and arc radius real-time display is in display device.The utility model realizes the quick measurement of each point radius on circular arc, and measurement efficiency is high and accuracy is higher.
Description
Technical field
The utility model is related to survey tool technical field, more particularly, to a kind of arc radius survey tool.
Background technology
In power construction, cable minimum bending radius meet code requirement to ensure cable normal operation to close weight
Will, Cable Bending Radius is too small, and the extruding and tensile stress that outside receives respectively in cable insulation bending are bigger, are easy to cause electricity
Cable structure damages, and influences cable life, and it is the key that ensure that cable meets normal operation to measure Cable Bending Radius.
Currently used measuring method has action method, arc-length methods and line-of-sight course to measure, and main tool to be used is number
Steel tape, calculated according to action method, arc-length methods or line-of-sight course according to relevant calculation formula, this measuring method step
It is cumbersome, and cable bend is generally not standard circular arc, it is difficult to measure the minimum bending radius of cable；In addition in practical applications
Transparent flexible measured thin film device is also used, the circular arc of different radii is carved in measuring device, the circular arc carved is same
On-site cable bending is compared, and can immediately arrive at Cable Bending Radius value, but to engrave all radiuses in a flexible film
Circular arc, workload is larger, and this measuring method is affected by environment larger, it is difficult to promote the use of.
In addition, in addition to Cable Bending Radius needs measure, it is also required to carry out circular arc in many occasions of commercial Application
The measurement of radius if the tool of a quick measurement circular arc each point radius can be provided, will effectively improve working efficiency.
Utility model content
The utility model is at least defect overcome described in the above-mentioned prior art, provides a kind of arc radius and measures work
Tool realizes that the quick of each point radius measures and calculate on circular arc, and measurement efficiency is high and accuracy is higher.
In order to solve the above technical problems, the utility model employs following technical solution：
A kind of arc radius survey tool including measuring sub-arm, measures sub-arm both ends and is provided with pulley, measure auxiliary
The line for helping two head sheave of arm is parallel with the axis for measuring sub-arm, measures and is provided with range unit, display device on sub-arm
And controller, controller are electrically connected respectively with range unit and display device, range unit is installed on the midpoint for measuring sub-arm.
The utility model enables survey tool to be slided in circular arc inner arc using sub-arm and its pulley at both ends is measured, and surveys
Measure the radius of circular arc each point.The utility model mainly carries out radius measurement using action method, and chord length is the distance between two pulleys,
Range unit is installed on the midpoint for measuring sub-arm, and the string is measured to the longest vertical range of circular arc using range unit, and then
Arc radius can be measured according to chord length method.This calculation process can be written as in calculation procedure writing controller, chord length
For given data, the longest vertical range of string to circular arc is obtained by range unit detection, is calculated automatically by controller, in real time
Arc radius is shown in display device.
Further, pulley is installed on by first rotating shaft and measured on sub-arm, when in circular arc there are during barrier, can will
Radius measurement tool is placed on circular arc outer arc and measures, and adjustment pulley enables pulley to be tightly attached to circular arc with measuring the angle of sub-arm
On outer arc, chord length is also the distance between two pulleys at this time, and when pulley is in 90 ° with measuring sub-arm, chord length is assisted to measure
The length of arm subtracts Pulley length, is given data, the longest vertical range of chord length to circular arc can be by the way that survey tool be put
It is placed on horizontal plane, so as to obtain the vertical range of both ends line and range unit, thus can calculate arc radius.
Further, it measuring on sub-arm and is additionally provided with press key input device, press key input device is electrically connected with the controller,
Change the arc radius computational methods of controller by key device.
Preferably, it for the ease of storage, measures sub-arm and includes measuring long-armed and measure galianconism, measure long-armed and measure short
Arm is connected by the second shaft, can fold survey tool, easy to carry and storage.
Preferably, controller is microcontroller, and range unit is range finding probe.
Compared with prior art, advantageous effect is：It is counted automatically by measuring sub-arm and pulley, and using controller
It calculates, quickly the radius of point each on circular arc can be measured, minimum arc radius can be quickly found out；Pulley can carry out 90 degree of rotations
Turn, there are during barrier in circular arc, can radius measurement be carried out by outer arc, make the utility model scope of application wider.
Description of the drawings
Fig. 1 is the occupation mode schematic diagram of one embodiment of the utility model.
Fig. 2 is another occupation mode schematic diagram of one embodiment of the utility model.
Fig. 3 is the front view of one examples measure tool of the utility model.
Fig. 4 is the rearview of one examples measure tool of the utility model.
Fig. 5 is the folded state diagram of one examples measure tool of the utility model.
Fig. 6 is the schematic diagram that action method measures arc radius.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；It is attached in order to more preferably illustrate the present embodiment
Scheme certain components to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of position relationship described in attached drawing
Explanation, it is impossible to be interpreted as the limitation to this patent.
As shown in Figure 3,4, it is the structure diagram of the utility model, including measuring sub-arm, measures sub-arm both ends
Pulley 3 is both provided with, pulley 3 is installed on by first rotating shaft 31 and measured on sub-arm, and pulley 3 is enable to measure sub-arm extension
Direction to Vertical Square is rotated up, and ranging sub-arm is formed by measuring long-armed 2 and measuring galianconism 1, and the two passes through the second shaft 11
Connection measures and range finding probe 21 is equipped on long-armed 2, and range finding probe 21 is located exactly at the midpoint for measuring sub-arm, measures auxiliary
Help on arm and be additionally provided with display device 22, button 23 and controller, and controller respectively with range finding probe 21, button 23 and display
Device 22 is electrically connected, wherein, controller is microcontroller.
The utility model mainly carries out the calculating of arc radius by action method, and the specific measurement method of action method is as follows：Such as
Shown in Fig. 6, one chord length of circular arc is measured first as b, then the longest vertical range for measuring the string to circular arc is a, utilizes formulaIt is calculated, you can obtain the radius of the circular arc.
As shown in Figure 1, survey tool measures arc radius from circular arc inner arc, long-armed 2 will be measured and measure galianconism 1
Angle be adjusted to 180 °, two head sheaves 3 are adjusted to 180 ° with measuring the angle of sub-arm, make two head sheaves 3 and circular arc inner arc
It is in close contact, and range finding probe 21 is measured towards circular arc.Chord length is to measure the length b of sub-arm, range finding probe 21 at this time
The midpoint for measuring sub-arm is installed on, the string is measured to the longest vertical range a of circular arc, and then can basis using range finding probe 21
Chord length method measures arc radius R.Measurement result is calculated automatically by controller, and is in real time shown in arc radius
In display device 22.
As shown in Fig. 2, when, there are during barrier, survey tool measures arc radius from circular arc outer arc in circular arc,
The angle for measuring long-armed 2 and measurement galianconism 1 is adjusted to 180 °, two head sheaves 3 are adjusted to 90 ° with measuring the angle of sub-arm,
Two head sheaves 3 is made to be in close contact, and range finding probe 21 is measured towards circular arc with circular arc outer arc.Chord length b is two pulleys at this time
Between air line distance, and the longest vertical range a of chord length to circular arc can utilize survey by the way that survey tool is positioned in plane
Away from probe detection range finding probe to the distance of straight line where two pulleys, arc radius R thus can be calculated.
The calculation process of above two method can be written as in calculation procedure writing controller, and chord length is given data, string
Longest vertical range to circular arc obtains by the measurement result of range unit, the computational methods of outer arc and inner arc by button 23 into
Row switching.
The utility model measuring speed is fast and measures precisely, for nonstandard circular arc, can quickly detect different location
Arc radius, if whether the bending radius of detection cable is more than minimum bending radius, using mobile pulley to different positions
Bending radius be detected, and the bending radius for obtaining the bending cable whether be all higher than cable most descend bending radius.Separately
Outside by the folding design of long galianconism, make that survey tool described in the present embodiment is easy to carry, and folded state is as shown in Figure 5.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principles of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (6)
1. a kind of arc radius survey tool, which is characterized in that including measuring sub-arm, measurement sub-arm both ends setting
There is pulley, the line for measuring two head sheave of sub-arm is parallel with the axis for measuring sub-arm, is set on the measurement sub-arm
Range unit, display device and controller are equipped with, the controller is electrically connected respectively with range unit and display device, the survey
The midpoint for measuring sub-arm is installed on away from device.
2. a kind of arc radius survey tool according to claim 1, which is characterized in that the pulley passes through first rotating shaft
It is installed on the measurement sub-arm.
3. a kind of arc radius survey tool according to claim 1, which is characterized in that also set on the measurement sub-arm
Press key input device is equipped with, the press key input device is electrically connected with the controller.
4. according to a kind of arc radius survey tool of claim 1-3 any one of them, which is characterized in that described to measure auxiliary
Including measuring long-armed and measuring galianconism, the measurement is long-armed to be connected arm with measurement galianconism by the second shaft.
5. a kind of arc radius survey tool according to claim 1, which is characterized in that the controller is microcontroller.
6. a kind of arc radius survey tool according to claim 1, which is characterized in that the range unit is visited for ranging
Head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721711513.9U CN207570457U (en) | 2017-12-11 | 2017-12-11 | A kind of arc radius survey tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721711513.9U CN207570457U (en) | 2017-12-11 | 2017-12-11 | A kind of arc radius survey tool |
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| Publication Number | Publication Date |
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| CN207570457U true CN207570457U (en) | 2018-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721711513.9U Active CN207570457U (en) | 2017-12-11 | 2017-12-11 | A kind of arc radius survey tool |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470174A (en) * | 2018-08-16 | 2019-03-15 | 国网浙江桐乡市供电有限公司 | It is a kind of for controlling the device and its application method of Cable Bending Radius |
| CN109883303A (en) * | 2018-12-29 | 2019-06-14 | 国网浙江省电力有限公司金华供电公司 | A kind of power cable bending radius measuring device |
| CN110986855A (en) * | 2019-11-20 | 2020-04-10 | 国家电网有限公司 | Power cable turning radius detection device and detection method thereof |
| CN111854578A (en) * | 2020-07-29 | 2020-10-30 | 山东建筑大学 | Device and method for quickly and accurately measuring curvature radius of arc arch |
-
2017
- 2017-12-11 CN CN201721711513.9U patent/CN207570457U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470174A (en) * | 2018-08-16 | 2019-03-15 | 国网浙江桐乡市供电有限公司 | It is a kind of for controlling the device and its application method of Cable Bending Radius |
| CN109883303A (en) * | 2018-12-29 | 2019-06-14 | 国网浙江省电力有限公司金华供电公司 | A kind of power cable bending radius measuring device |
| CN110986855A (en) * | 2019-11-20 | 2020-04-10 | 国家电网有限公司 | Power cable turning radius detection device and detection method thereof |
| CN111854578A (en) * | 2020-07-29 | 2020-10-30 | 山东建筑大学 | Device and method for quickly and accurately measuring curvature radius of arc arch |
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