CN202141481U - Round pipe diagonal positioning ruler - Google Patents
Round pipe diagonal positioning ruler Download PDFInfo
- Publication number
- CN202141481U CN202141481U CN201120269835U CN201120269835U CN202141481U CN 202141481 U CN202141481 U CN 202141481U CN 201120269835 U CN201120269835 U CN 201120269835U CN 201120269835 U CN201120269835 U CN 201120269835U CN 202141481 U CN202141481 U CN 202141481U
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- CN
- China
- Prior art keywords
- axial distance
- ruler
- diagonal
- pipe
- chi
- 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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- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
The utility model discloses a round pipe diagonal positioning ruler which belongs to the technical field of diagonal positioning measurement. The round pipe diagonal positioning ruler consists of a pipe diameter measurement ruler and an axial distance measurement ruler which are fixed at an angle of 90 DEG; a pipe diameter measurement ruler tape is arranged on the pipe diameter measurement ruler; and an axial distance measurement ruler tape is arranged on the axial distance measurement ruler. The round pipe diagonal positioning ruler has high positioning precision and low cost, is simple and convenient to operate and is especially suitable for the correct positioning of sensor diagonal mounting positions when portable ultrasonic flow meters adopt a diagonal detection method to measure pipe flows.
Description
Technical field
The utility model belongs to the diagonal orientation field of measuring technique, particularly a kind of circular pipe diagonal orientation chi.
Background technology
In the building and heating cold supply system, use throughput of flowing medium in the portable supersonic flowmeter survey pipeline at present, when the pipeline of less caliber was measured, the method for employing was that two sensors are installed on the same side of a track.When caliber was big, just needs employing diagonal angle detection method was measured, and promptly two sensors must accurately be arranged in the both sides of pipe by specifying Spacing, and its connecting line passes through the pipe center, otherwise can't detect ultrasonic signal.For big-diameter pipeline; The accurate location of diagonal position is difficulty very, and general error surpasses 1 centimetre and just can't receive ultrasonic signal, can not accomplish surveying work; Promptly enable to catch ultrasonic signal, often also can cause measurement result insincere because of positioning error is excessive.
General portable supersonic flowmeter provides the trapped orbit of one-sided installation, and the Auxiliary Track of diagonal angle installation, but the locating device of Auxiliary Track is not provided.Because of 2 of needs location not in one plane, common steel tape also can't directly accurately be located the installation site, diagonal angle on the pipe.
The utility model content
The utility model discloses a kind of circular pipe diagonal orientation chi to above-mentioned defective.It is made up of Calibration chi and axial distance dip stick, and the Calibration chi becomes 90 degree right-angle arraies to fix with the axial distance dip stick, Calibration chi band is installed on the Calibration chi, and axial distance dip stick band is installed on the axial distance dip stick.
Said Calibration chi left side mark the girth scale, and the right side mark the caliber scale; The unit of girth scale and caliber scale is millimeter.
The beneficial effect of the utility model is: the utility model provides a kind of pipe diagonal orientation precision high, easy and simple to handle, with low cost pipe diagonal orientation chi; Be specially adapted to the accurate location of portable supersonic flowmeter installation site, sensor diagonal angle when adopting diagonal angle detection method measuring channel flow.
Description of drawings
Fig. 1 is the structural representation of the utility model
Fig. 2 is the synoptic diagram of a kind of specific embodiment of the utility model
Fig. 3 is a Calibration chi band scale synoptic diagram
1-Calibration chi among the figure, 2-axial distance dip stick, 3-Calibration chi band, 4-axial distance dip stick band, 5-girth scale, 6-caliber scale.
Embodiment
Below in conjunction with accompanying drawing to the utility model further explain.
As shown in Figure 1; A kind of circular pipe diagonal orientation chi is made up of Calibration chi 1 and axial distance dip stick 2; 2 one-tenth 90 degree of Calibration chi 1 and axial distance dip stick right-angle array is fixed; Calibration chi band 3 is installed on the Calibration chi 1, and axial distance dip stick band 4 is installed on the axial distance dip stick 2.
Calibration chi 1 left side mark girth scale 5, and the right side mark caliber scale 6; The unit of girth scale 5 and caliber scale 6 is millimeter.
When using circular pipe diagonal orientation chi, that axial distance dip stick 2 is axial arranged along pipe; Pulling Calibration chi band 3 is around one week of pipe, and the numerical value through reading caliber the scale 6 or numerical value of girth scale 5 calculated obtains the diameters of pipe; Repeat above step several times, obtain the diameters of different pipes, get its minimum value conduct pipe diameters accurately.This pipe diameters is imported ultrasonic flow meter to calculate the corresponding sensor spacing; Pulling axial distance dip stick band 4 arrives assigned address B (distance of this position and Calibration chi 1 is a transducer spacing) and fixing, and the semi-perimeter point A of Calibration chi band 3 and axial distance dip stick band 4 terminal B are the required diagonal angle measurement point of fixation of sensor.
It is that the circular pipe of 200～1000cm is measured that the utility model is applicable to diameter, the undersized Calibration error that causes easily of pipe, and pipe is oversize to be caused Calibration chi skew vertical axial position easily and then causes diagonal orientation inaccurate.
Claims (2)
1. circular pipe diagonal orientation chi; It is characterized in that; It is made up of Calibration chi (1) and axial distance dip stick (2); Calibration chi (1) becomes 90 degree right-angle arraies to fix with axial distance dip stick (2), Calibration chi band (3) is installed on the Calibration chi (1), and axial distance dip stick band (4) is installed on the axial distance dip stick (2).
2. a kind of circular pipe diagonal orientation chi according to claim 1 is characterized in that, said Calibration chi (1) left side mark girth scale (5), and the right side mark caliber scale (6); The unit of girth scale (5) and caliber scale (6) is millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120269835U CN202141481U (en) | 2011-07-27 | 2011-07-27 | Round pipe diagonal positioning ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120269835U CN202141481U (en) | 2011-07-27 | 2011-07-27 | Round pipe diagonal positioning ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141481U true CN202141481U (en) | 2012-02-08 |
Family
ID=45552536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120269835U Expired - Fee Related CN202141481U (en) | 2011-07-27 | 2011-07-27 | Round pipe diagonal positioning ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202141481U (en) |
-
2011
- 2011-07-27 CN CN201120269835U patent/CN202141481U/en not_active Expired - Fee Related
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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: 20120208 Termination date: 20140727 |
|
| EXPY | Termination of patent right or utility model |