CN201413105Y - Vernier caliper for inner core - Google Patents
Vernier caliper for inner core Download PDFInfo
- Publication number
- CN201413105Y CN201413105Y CN2009201439167U CN200920143916U CN201413105Y CN 201413105 Y CN201413105 Y CN 201413105Y CN 2009201439167 U CN2009201439167 U CN 2009201439167U CN 200920143916 U CN200920143916 U CN 200920143916U CN 201413105 Y CN201413105 Y CN 201413105Y
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- CN
- China
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- measurement
- vernier caliper
- gauge head
- measuring head
- column
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- Expired - Fee Related
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a measurement appliance, in particular to a vernier caliper for measuring an inner core. The vernier caliper comprises a blade, a vernier, inner measurement claws and outer measurement claws, and is characterized in that a cylindrical overhanging measuring head is fixedly arranged on the same one side surface of the two inner measurement claws or two outer measurementclaws respectively; and the axial line of the cylindrical overhanging measuring head is perpendicular to a blade surface with scale marks. In the utility model, the cylindrical overhanging measuring head is installed on the inner measurement claw or the outer measurement claw of the existing vernier caliper; as the cylindrical overhanging measuring head is perpendicular to the surface of the bladewith the scale marks, the measurement data can be quite directly and conveniently read out when in measurement, and therefore the measurement rate is greatly improved; simultaneously, as the measurement surface of the overhanging measuring head is made as an arc surface, the contact surface of the measurement surface of the vernier caliper and a measured hole can accurately react the measured dimension. The technical scheme is also characterized by simple structure and convenient use.
Description
Affiliated technical field
The utility model relates to a kind of measurement apparatus, particularly a kind of vernier caliper of measuring endoporus.
Background technology
In the bore hole process,, bring no small difficulty for the direct measurement of bore diameter because boring bar has taken most of locus of bore hole.Conventional measuring method is to measure after boring bar is withdrawed from, and for large-scale steel structure members, the process of bore hole can only be unidirectional processing, and the work efficiency of bore hole is lower like this.In order to improve bore hole efficient, when the hole of machining large steel construction piece, on boring bar, open a measured hole, the measured hole that passes on the boring bar with micrometer inside caliper comes the diameter of bore hole is measured.But this measuring method is inconvenience very, and the measuring process holding time is long, dangerous.The method of the another kind of measurement bore diameter of using always is to adopt the internal calliper swing to compare and measure; this measuring method requires survey crew that more rich experience level must be arranged; and survey crew usually can be subjected to the influence of boring bar in whole measuring process; the data that finally record are not directly perceived, and measuring accuracy is lower.
Summary of the invention
The endoporus vernier caliper that the purpose of this utility model provides and a kind ofly measures conveniently, measuring accuracy is high.
The technical solution of the utility model is: a kind of endoporus vernier caliper, comprise blade, vernier, interior measuring claw, external pelivimetry pawl, it is characterized in that being fixed with respectively on the same side of two interior measuring claws or two external pelivimetry pawls the column gauge head that overhangs, column overhangs the axis normal of gauge head in the ruler body surface that indicates scale mark.
The overhang measurement face of gauge head of above-mentioned column is an arc surface.
Above-mentioned column overhang gauge head fixed form for the welding.
The overhang xsect of gauge head of above-mentioned column is square or circular.
The above-mentioned column gauge head that overhangs is to be combined by rectangular parallelepiped and right cylinder.
The utility model is to improve to form on the basis of common calliper.Be that the column gauge head that overhangs has been installed on the interior measuring claw of existing vernier caliper or external pelivimetry pawl, to indicate the scale mark face vertical for gauge head and blade because this column overhangs, so can be very directly when measuring and directly read measurement data easily, particularly when measuring bore diameter, need not boring bar is withdrawed from, the gauge head that overhangs on the vernier caliper directly can be put into required measured hole, make boring bar be positioned at measuring claw or external pelivimetry pawl, so just improved efficiency of measurement greatly, because the measurement face of the gauge head that will overhang is made as arc surface, make the measurement face of vernier caliper and the surface of contact of tested metering-orifice can react measured size accurately simultaneously.The technical program is when making, and the measurement zero-bit of the gauge head that only needs to guarantee to overhang and the indicating value zero-bit of common calliper match and get final product, and have characteristics simple in structure, easy to use.
Description of drawings
Accompanying drawing 1 is the front view of the utility model structure;
Accompanying drawing 2 is the vertical view of the utility model accompanying drawing 1;
Accompanying drawing 3 is the left view of the utility model accompanying drawing 1.
Embodiment
As shown in Figure 1, vernier caliper is made up of blade 2, vernier 3, interior measuring claw 1 and external pelivimetry pawl 4, is marked with scale at blade.As shown in Figure 2, on the upper side of two external pelivimetry pawls 4 of existing vernier caliper, be fixed with two columns gauge head 5 that overhangs respectively, column overhangs the axis normal of gauge head in the ruler body surface that indicates scale mark, that is to say that column overhangs the axis normal of gauge head in the upper side of two external pelivimetry pawls 4.For improving measuring accuracy, the measurement face of gauge head of above-mentioned column can being overhang is made as arc surface, column overhang gauge head and interior measuring claw fixed form for the welding, as shown in Figure 3, being about to the overhang its right end face of gauge head 5 of column is welded on external pelivimetry pawl and the face that the graduated face of blade subscript parallels.In order to improve the column gauge head intensity that overhangs, the gauge head that overhangs can be combined by rectangular parallelepiped and right cylinder.
Overhanging gauge head can be by T
10Tool steel is made, adopt the high-strength stainless steel electrode to weld fixing, and it is welded on two external pelivimetry pawls of common calliper in strict accordance with certain position relation, the gauge head that overhangs that butt welding simultaneously connects is repeatedly repaiied repeatedly and is ground, on an one side, forming one section regular measurement arc surface, till coinciding to indicating value zero-bit to the measurement zero-bit of slide calliper rule and common calliper.
According to the structure and the actual needs of existing vernier caliper, the gauge head that overhangs also can be fixed on the interior measuring claw 1.
Claims (5)
1, a kind of endoporus vernier caliper, comprise blade, vernier, interior measuring claw, external pelivimetry pawl, it is characterized in that being fixed with respectively on the same side of two interior measuring claws (1) or two external pelivimetry pawls (4) the column gauge head (5) that overhangs, column overhangs the axis normal of gauge head (5) in the blade that indicates scale mark (2) face.
2, endoporus vernier caliper according to claim 1 is characterized in that the overhang measurement face of gauge head (5) of above-mentioned column is an arc surface.
3, endoporus vernier caliper according to claim 2, it is characterized in that above-mentioned column overhang gauge head (5) fixed form for the welding.
4, endoporus vernier caliper according to claim 3 is characterized in that the overhang xsect of gauge head (5) of above-mentioned column is square or circular.
5, endoporus vernier caliper according to claim 4 is characterized in that the above-mentioned column gauge head (5) that overhangs is to be combined by rectangular parallelepiped and right cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201439167U CN201413105Y (en) | 2009-06-30 | 2009-06-30 | Vernier caliper for inner core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201439167U CN201413105Y (en) | 2009-06-30 | 2009-06-30 | Vernier caliper for inner core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201413105Y true CN201413105Y (en) | 2010-02-24 |
Family
ID=41714988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201439167U Expired - Fee Related CN201413105Y (en) | 2009-06-30 | 2009-06-30 | Vernier caliper for inner core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201413105Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012203A (en) * | 2010-11-11 | 2011-04-13 | 无锡明珠增压器制造有限公司 | Inner diameter measurement auxiliary sleeve for vernier caliper |
| CN102721329A (en) * | 2011-02-22 | 2012-10-10 | 汪砚秋 | Internal diameter measuring scale |
-
2009
- 2009-06-30 CN CN2009201439167U patent/CN201413105Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012203A (en) * | 2010-11-11 | 2011-04-13 | 无锡明珠增压器制造有限公司 | Inner diameter measurement auxiliary sleeve for vernier caliper |
| CN102721329A (en) * | 2011-02-22 | 2012-10-10 | 汪砚秋 | Internal diameter measuring scale |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20110630 |