CN201378030Y - Three-point caliber gauge - Google Patents
Three-point caliber gauge Download PDFInfo
- Publication number
- CN201378030Y CN201378030Y CN200920146188U CN200920146188U CN201378030Y CN 201378030 Y CN201378030 Y CN 201378030Y CN 200920146188 U CN200920146188 U CN 200920146188U CN 200920146188 U CN200920146188 U CN 200920146188U CN 201378030 Y CN201378030 Y CN 201378030Y
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- CN
- China
- Prior art keywords
- blade
- measuring jaw
- vernier
- calibre
- measuring
- 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 Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a three-point caliber gauge for measuring the diameter of a round surface or a round flaw surface. The caliber gauge includes a gauge body (1) and a nonius (2) that can slide along the gauge body (1), wherein the gauge body (1) is provided with a fixed measuring jaw (3) and the nonius (2) is provided with a moving measuring jaw (4) opposite to the fixed measuring jaw (3); two ends of the fixed measuring jaw (3) and the moving measuring jaw (4), away from the gauge body (1), are close to each other, on the two measuring jaws, two side edges (30, 40) in contact with a measured object are straight edges, and the angle between the two side edges is 60 degrees; and the angle between the two side edges and an edge (10) at one side of the measuring jaw on the gauge body (1) is 60 degrees. The caliber gauge can directly measure the diameter of a round flaw article with an incomplete arc surface.
Description
Technical field
The utility model relates to a kind of slide calliper rule of measuring disc or the scarce face diameter of circle, especially a kind of 3 calibre gauges that utilize 3 definite diameters.
Background technology
Vernier caliper is the instrument of industrial measurement length commonly used, and it is made up of the blade and the vernier that can slide on blade.Blade and vernier all have measuring jaw, and the width that measuring claw can measuring flume in utilizing and the internal diameter of pipe utilize the external pelivimetry pawl can measure the thickness of part and the external diameter of pipe.Pit gauge and vernier scale connect together, and can survey the degree of depth of groove and tube.One spring leaf is arranged between vernier and the blade, utilize the elastic force of spring leaf that vernier and blade are close to.One trip bolt is arranged at vernier top, vernier can be fixed on the optional position on the blade.
For the object of regular shape, as round tube, vernier caliper can easily be measured its external diameter exactly.But, just can not make things convenient for exactly and measure for some objects in irregular shape.As the drill bit that use in the petroleum drilling engineering field, its cross sectional shape is different, and it is that three concave surfaces circle lacks that its cross section of a kind of drill bit is wherein arranged.And also certainly exist the object that the multi-concave circle lacks in producing.For this type of object, owing to be difficult to find two points on same diameter on the periphery, so can't accurately measure its diameter with vernier caliper or other slide calliper rule class instruments.
The utility model content
Technical problem to be solved in the utility model provides a kind of can the convenience and measures 3 calibre gauges that circle lacks class object diameter exactly.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of 3 calibre gauges, comprise blade and the vernier that can slide along blade, and blade is provided with fixing fixedly measuring jaw, and vernier is provided with and the fixing relative mobile measuring jaw of measuring jaw; The two ends away from blade of described fixedly measuring jaw and mobile measuring jaw are drawn close mutually, on two measuring jaws, when measuring and contacted two sides of measurand be flat side, the angle between these two sides is 60 °; And on these two sides and the blade, the angle between the limit of measuring jaw one side is 60 °.Contact when being positioned at measuring jaw one side on two sides, the blade and measuring during the measurement of described fixedly measuring jaw and mobile measuring jaw with measurand and the contacted one side of measurand, the three constitutes the measurement limit of 3 calibre gauges.
As a kind of improvement, described fixedly measuring jaw is connected with blade by the fixed amount arm of strip, and described mobile measuring jaw is connected with vernier by the amount of movement arm of strip.
Described fixed amount arm and blade are perpendicular, and described amount of movement arm and blade are perpendicular.
On the basis of technique scheme, the utility model can also be done following three kinds of different improvement.
All indicate scale mark on described blade and the vernier, obtain measured value by the scale that reads on vernier and the blade during measurement.On described blade, the distance between per two nearest scale marks is 1.732mm.
On described vernier or blade, be provided with the stem-winder that shows relative displacement between the two.Obtain measured value by the dial plate that reads stem-winder during measurement.
On described vernier or blade, be provided with the electronic instrument that shows relative displacement between the two.Obtain measured value by the numerical value that reads the electronic instrument demonstration during measurement.
The beneficial effects of the utility model are: when needing to measure the diameter of circle or the scarce class object of circle, object to be measured is placed between two measuring jaws of 3 calibre gauges, promote vernier and mobile measuring jaw, make the circular arc shaped portion of round Short Item to be measured and three desirable contacts in measurement limit of 3 calibre gauges.This moment, the circle at circle Short Item cambered surface place became three incircles of measuring the equilateral triangle at place, limit.According to the trigonometric function principle, can calculate the corresponding relation of distance between the diameter of round Short Item and two measuring jaws.According to this corresponding relation, on blade and vernier, indicate corresponding scale, can directly read corresponding round Short Item diameters.Perhaps, round Short Item diameters is directly shown on a stem-winder or the electronic instrument according to distance between this corresponding relation and two measuring jaws.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2;
In the accompanying drawing, the list of parts of each label representative is as follows:
1, blade, 10, the limit that is positioned at measuring jaw one side of blade, 2, vernier, 21, trip bolt, 3, fixing measuring jaw, 30, fixing one side that contacts with measurand of measuring jaw, 31, fixed amount arm, 4, mobile measuring jaw, 40, one side that contacts with measurand of mobile measuring jaw, 41, amount of movement arm, 8, stem-winder or electronic instrument.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
As shown in Figure 1 and Figure 2,3 calibre gauges of the utility model comprise the blade 1 of strip and the vernier 2 that can slide along blade 1.One trip bolt 21 is arranged at vernier 2 tops, vernier 2 can be fixed on the optional position on the blade 1.Blade 1 is provided with fixing fixedly measuring jaw 3, and vernier 2 is provided with the mobile measuring jaw 4 relative with fixing measuring jaw 3.The two ends away from blade 1 of described fixedly measuring jaw 3 and mobile measuring jaw 4 are drawn close mutually, on two measuring jaws, when measuring and contacted two sides 30,40 of measurand be flat side, the angle between these two sides 30,40 is 60 °; And on the blade 1, the angle between two sides 30,40 of the limit 10 of two measuring jaw one sides and measuring jaw is 60 °.
Fig. 1 is the synoptic diagram of embodiment 1.As shown in the figure, fixedly measuring jaw 3 and mobile measuring jaw 4 are straight strip, are separately fixed on blade 1 and the vernier 2.Fixedly measuring jaw 3 is a flat side with mobile measuring jaw 4 relative two sides 30,40, and angle between the two is 60 °, also is 60 ° with the angle of blade 1.Fixedly relative two sides 30,40 of measuring jaw 3 and mobile measuring jaw 4 and blade 1 be positioned at two measuring jaws, one side and the contacted limit 10 of measurand, the three forms semi-enclosed equilateral triangle of an adjustable size joint.During measurement, measurand is put into triangle, make its arc surface be cut in leg-of-mutton three limits outward.According to the fixing relative distance between measuring jaw 3 and the mobile measuring jaw 4, can calculate the diameter value of measurand.For making things convenient for reading, a stem-winder or an electronic instrument 8 that shows relative displacement between the two can be set on vernier 2 or blade 1, its concrete connected mode and embodiment of the prior art are equal to.
Fig. 2 is the synoptic diagram of the utility model embodiment 2.As figure, described fixedly measuring jaw 3 is connected with blade 1 by the fixed amount arm 31 of strip, and described mobile measuring jaw 4 is connected with vernier 2 by the amount of movement arm 41 of strip.Fixedly the fixed amount arm 31 of measuring jaw 3 is vertical with blade 1, and the amount of movement arm 41 of mobile measuring jaw 4 is also vertical with blade 1.The fixing angle of measuring jaw 3 and 31 one-tenth 150 ° on its fixed amount arm, the angle of mobile measuring jaw 4 and 41 one-tenth 150 ° on its amount of movement arm.Fixedly measuring jaw 3 and mobile measuring jaw 4 are drawn close mutually away from an end of blade 1.Object among Fig. 2 between the measuring jaw is three a concave surfaces circle Short Item to be measured.During measurement, measurand is put into fixedly between the measuring jaw 3 and mobile measuring jaw 4, promoted vernier 2, make 10 whiles of limit of limit 40, blade 1 of side 30, the mobile measuring jaw 4 of measurand and fixing measuring jaw 3 tangent.According to the fixing relative distance between measuring jaw 3 and the mobile measuring jaw 4, utilize the trigonometric function principle can calculate the diameter value of measurand.For directly reading the diameter value of measurand, can on described blade 1 and vernier 2, mark scale mark according to the corresponding relation of distance between the diameter of measurand and two measuring jaws, directly obtain measured value by the scale that reads on vernier 2 and the blade 1 during measurement.Because the scale on the blade 1 is the angle according to measuring jaw the convert numerical value that draws and definite, so the size of its minimum scale is 1.732mm, with normal scale difference to some extent.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. 3 calibre gauges comprise blade (1) and the vernier (2) that can slide along blade (1), and blade (1) is provided with fixing fixedly measuring jaw (3), the mobile measuring jaw (4) that vernier (2) is provided with fixedly measuring jaw (3) is relative; It is characterized in that, the two ends away from blade (1) of described fixedly measuring jaw (3) and mobile measuring jaw (4) are drawn close mutually, on two measuring jaws, when measuring and contacted two sides of measurand (30,40) be flat side, the angle between these two sides (30,40) is 60 °; And the angle between the limit (10) on these two sides (30,40) and the blade (1), that be positioned at measuring jaw one side is 60 °.
2. 3 calibre gauges according to claim 1 is characterized in that, described fixedly measuring jaw (3) is connected with blade (1) by the fixed amount arm (31) of strip, and described mobile measuring jaw (4) is connected with vernier (2) by the amount of movement arm (41) of strip.
3. 3 calibre gauges according to claim 2 is characterized in that, described fixed amount arm (31) is perpendicular with blade (1), and described amount of movement arm (41) is perpendicular with blade (1).
4. according to claim 1 or 2 or 3 described 3 calibre gauges, it is characterized in that, all indicate scale mark on described blade (1) and the vernier (2).
5. 3 calibre gauges according to claim 4 is characterized in that, on the described blade (1), the distance between per two nearest scale marks is 1.732mm.
6. according to claim 1 or 2 or 3 described 3 calibre gauges, it is characterized in that, on described vernier (2) or blade (1), be provided with the stem-winder (8) that shows relative displacement between the two.
7. according to claim 1 or 2 or 3 described 3 calibre gauges, it is characterized in that, on described vernier (2) or blade (1), be provided with the electronic instrument (8) that shows relative displacement between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920146188U CN201378030Y (en) | 2009-03-27 | 2009-03-27 | Three-point caliber gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920146188U CN201378030Y (en) | 2009-03-27 | 2009-03-27 | Three-point caliber gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201378030Y true CN201378030Y (en) | 2010-01-06 |
Family
ID=41518146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920146188U Expired - Fee Related CN201378030Y (en) | 2009-03-27 | 2009-03-27 | Three-point caliber gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201378030Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455142A (en) * | 2019-07-31 | 2019-11-15 | 江苏如东联丰石油机械有限公司 | A kind of novel double scale bikini drilling tool gauge |
-
2009
- 2009-03-27 CN CN200920146188U patent/CN201378030Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455142A (en) * | 2019-07-31 | 2019-11-15 | 江苏如东联丰石油机械有限公司 | A kind of novel double scale bikini drilling tool gauge |
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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: 20100106 Termination date: 20170327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |