CN2120318U - Circumference and diameter two-purpose ruler - Google Patents
Circumference and diameter two-purpose ruler Download PDFInfo
- Publication number
- CN2120318U CN2120318U CN 92207557 CN92207557U CN2120318U CN 2120318 U CN2120318 U CN 2120318U CN 92207557 CN92207557 CN 92207557 CN 92207557 U CN92207557 U CN 92207557U CN 2120318 U CN2120318 U CN 2120318U
- Authority
- CN
- China
- Prior art keywords
- scale
- diameter
- girth
- circumference
- utility
- 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.)
- Granted
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model provides a circumference and diameter two-purpose band tape, comprising a main ruler, a scale and a ruler box. The utility model is characterized in that the main ruler is provided with a diameter scale and a circumference scale and the scale is provided with a corresponding diameter differential scale and a circumference differential scale. The main ruler and the scale are used together, the number values of the circumference and the diameter which are accurate to 0.1 scale unit can be gained directly. The utility model has the advantages of high measuring precision, convenient portability and convenient and visual measurement and can improve the work efficiency when carrying out multitudinous measurement. Due to the adoption of the band tape structure, the utility model can be used in the welded tube industry and other technical field of measuring the tube diameter of the empty tube and the solid tube.
Description
The utility model relates to a kind of welded tube industry measurement chi, particularly girth, diameter two-purpose ruler commonly used.
The measurement caliber that the welded tube industry is general, the method for girth are at present, entangle caliber with steel tape, draw girth generally, calculate diameter again, and the shortcoming of this way is to measure inconvenience, and measuring accuracy is not high.When particularly measuring in enormous quantities, influence work efficiency.
The purpose of this utility model is exactly the present situation that does not have to measure specially the caliber instrument at existing welded tube industry, provides a kind of measurement convenient, directly perceived, the girth that measuring accuracy is high, diameter two-purpose ruler.
The utility model comprises chi box, main scale, scale.Girth scale and diameter scale are arranged on the main scale, girth differential scale and diameter differential scale are arranged on the scale, alveolus is arranged on the scale.
Below in conjunction with accompanying drawing the utility model is elaborated.
Accompanying drawing is the utility model structural representation
1 is that chi box, 2 is that main scale, 3 is that scale, 4 is that girth scale, 5 is that diameter scale, 6 is that girth differential scale, 7 is that diameter differential scale, 8 is an alveolus among the figure.
Assembling mode of the present utility model is such, and main scale 2 one ends are fixed on the inner core in the chi box 1, and scale 3 links to each other with main scale 2 and be slightly wider than main scale 2, has on the scale 3 to the alveolus 8 of chi top opening, and alveolus 8 degree of depth are greater than half of scale width. Main scale 2 is provided with girth scale 4 and diameter scale 5, after alveolus 8, be provided with girth differential scale 6 and diameter differential scale 7 on the scale 3, alveolus 8 is 6 zero points of girth differential scale near differential scale edges, and the ratio of girth scale 4 and diameter scale 5 and girth differential scale 6 are respectively 3.14 with the ratio of diameter differential scale 7. When not measuring, main scale 2, scale 3 are ordinary steel tape measure structure in chi box 1.
Occupation mode of the present utility model is: when measuring caliber, traction scale 3 drives main scale 2 and extends chi box 1, entangle measured piece, main scale 2 intersects at alveolus 8 places with scale 3, lap main scale 2 was on scale 3 after it intersected, tighten up main scale, scale, use the vernier caliper reading principle, can draw the girth, the diameters that are accurate to 0.1 scale unit.
The utility model has the advantages that it is convenient, directly perceived to measure, the accuracy height, and adopt the tape measure structure, easy to carry. Can be widely used in welded tube and other measurement blank pipe, the girth of solid tubes and the field of diameter, have very high practical value.
Claims (5)
1, a kind of girth, diameter two-purpose ruler, it is characterized in that forming by main scale 2, scale 3, chi box 1, main scale 2 one ends are fixed on the inner core of chi box 1, the other end links to each other with scale 3, girth scale 4 and diameter scale 5 are arranged on the main scale 2, girth differential scale 6 and diameter differential scale 7 are arranged on the scale 3, have alveolus 8 on the scale 3 to chi top opening.
2,, it is characterized in that said scale 3 is wideer slightly than main scale 2 according to the said girth of claim 1, diameter two-purpose ruler.
3, according to the said girth of claim 1, diameter two-purpose ruler, the degree of depth that it is characterized in that said alveolus 8 is greater than half of scale 3 width.
4,, it is characterized in that said girth scale 4 and ratio, the girth differential scale 6 of diameter scale 5 are respectively 3.14 with the ratio of diameter differential scale 7 according to the said girth of claim 1, diameter two-purpose ruler.
5,, it is characterized in that said four scales shared zero points according to the said girth of claim 1, diameter two-purpose ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92207557 CN2120318U (en) | 1992-04-14 | 1992-04-14 | Circumference and diameter two-purpose ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92207557 CN2120318U (en) | 1992-04-14 | 1992-04-14 | Circumference and diameter two-purpose ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2120318U true CN2120318U (en) | 1992-10-28 |
Family
ID=4953251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92207557 Granted CN2120318U (en) | 1992-04-14 | 1992-04-14 | Circumference and diameter two-purpose ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2120318U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101253384B (en) * | 2005-09-01 | 2010-08-11 | 通用电气公司 | Locomotive wheel reference groove diameter measuring device |
| CN104482820A (en) * | 2014-12-04 | 2015-04-01 | 周维保 | Pi flexible ruler |
| CN107661097A (en) * | 2016-06-14 | 2018-02-06 | 美商宇心生医股份有限公司 | Electrocardiogram measuring method |
-
1992
- 1992-04-14 CN CN 92207557 patent/CN2120318U/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101253384B (en) * | 2005-09-01 | 2010-08-11 | 通用电气公司 | Locomotive wheel reference groove diameter measuring device |
| CN104482820A (en) * | 2014-12-04 | 2015-04-01 | 周维保 | Pi flexible ruler |
| CN107661097A (en) * | 2016-06-14 | 2018-02-06 | 美商宇心生医股份有限公司 | Electrocardiogram measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |