CN2608940Y - Inside-outside vernier callipers - Google Patents
Inside-outside vernier callipers Download PDFInfo
- Publication number
- CN2608940Y CN2608940Y CN 03211526 CN03211526U CN2608940Y CN 2608940 Y CN2608940 Y CN 2608940Y CN 03211526 CN03211526 CN 03211526 CN 03211526 U CN03211526 U CN 03211526U CN 2608940 Y CN2608940 Y CN 2608940Y
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- CN
- China
- Prior art keywords
- ruler
- measuring head
- chi frame
- chi
- frame
- 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 an inner and outer vernier caliper used for measuring consisting of a ruler blade with a main ruler, a ruler frame, a pressing disc with a secondary ruler and a fastening nail, which is characterized in that both ends of the ruler body and the ruler frame are hinged with a ruler rack, the two ruler racks are movable connected by an axle pin, the inner and outer sides of the another side of ruler rack are separately provided with a measuring head, the distance between the measuring head on ruler rack and the axle pin is half of the distance of the hinging part of ruler body and the ruler frame. The utility model has advantages of compact and practical structure, wide measuring range, high distinguishing accuracy and long service life.
Description
Technical field
The utility model belongs to the measurer technical field, specifically a kind of vernier caliper of clamp and vernier caliper being become external diameter in the measuring of one.
Background technology
The applicant has applied for " vernier caliper " utility model patent on October 6th, 1998 to Patent Office of State Intellectual Property Office, and its patent No. is: ZL98 2 39088.2.Although this structure is organically become one with clamp and vernier caliper, Mi has mended deficiency separately, has improved precision, has been convenient for measuring.But part still comes with some shortcomings in process on probation.As: be two cusps 1,, during application, not only scratch the surface of measured workpiece easily because of two gauge heads are actual, and quick-wearing very itself, thereby the precision of losing, so actual application value is very little.2, function singleness, interior vernier caliper can only be measured inside dimension, and outer vernier caliper can only be measured outside dimension, thereby has limited its range of application greatly.
Summary of the invention
The purpose of this utility model provides the vernier caliper of a kind of side amount external diameter and interior gauge structure interior external diameter.
The purpose of this utility model is achieved in that it comprises the blade, chi frame of a band main scale, compressing tablet, the clench nail that band is paid chi, it is characterized in that at the two ends of blade and chi frame symmetry is hinged with a chi frame respectively, between two chi framves, live and be connected with a pivot pin, be respectively arranged with a measuring head in the inboard and the outside of the chi frame other end; Chi frame measuring head is a pivot pin to chi frame and blade and chi frame 1/2nd of the position distance that is hinged to the distance of pivot pin.
Above-mentioned measuring head is circular-arc measuring head.In order to avoid the measuring head of cusp scratches the surface of measured workpiece, and easy to wear, and lose precision, reduce actual application value.
The utility model makes the center of circle O of this circular arc owing to the cusp with gauge head changes arc-shaped surface into
1Be positioned at two bearing pin O of four-bar mechanism
2O
3The extended line of line of centres on.And make O
2O
3Line segment length be O
1O
2Twice.(as shown in Figure 1)
Because the nominal value on the reading main scale is 1/2nd of its actual length value, so, the resolution of its reading will double than vernier caliper.Like this, not only overcome an above difficult problem, and the resolving accuracy height, convenient reading.The utility model also has simple and practical, and measurement range is wide, characteristics such as long service life.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation sketch of the present utility model
Fig. 2 is the local simplified schematic diagram of amplifying of the blade of Fig. 1
To be described in further detail utility model by example below, but following example only is the utility model example wherein the rights protection scope of not representing the utility model and being limited.
Embodiment
Example 1
By shown in Figure 1, among the figure 1 is that chi frame, 3 is clench nail for blade, 2 compressing tablets, 4 for band pair chi of band main scale, symmetry is hinged with a chi frame 5 respectively at the two ends of blade and chi frame, between two chi framves, live and be connected with a pivot pin 6, be respectively arranged with a circular- arc measuring head 7,8 in the inboard and the outside of chi frame 5 other ends; Circular- arc measuring head 7,8 distances to pivot pin 6 of chi frame are pivot pins 6 to chi frame and blade and chi frame 1/2nd of the position distance that is hinged.This chi frame and circular-arc measuring head have been formed the side amount end of clamp structures; The vernier scale end of the other end is the reading end, and this structure is two-to-one relation by mutual rotation and the two ends around three coupling shafts alive, thereby has improved measuring accuracy.
During measurement, two circular arcs that radius is different are arranged, O on each measuring head respectively
1Point is the together circle center of these two sections circular arcs.Its outer section circular arc is used to measure inside dimension, and the inner segment circular arc is used to measure outside dimension.Inside and outside size differs a fixing constant.
Nominal value on the reading main scale is set at 1/2nd of its actual length value.As shown in Figure 2: on the reading main scale, the physical length between the nominal value 90 to 95 is 10mm.But the difference of its nominal value is 95-90=5mm.The scale value of its vernier reading chi is also done change correspondingly.So, the resolution of its reading (resolving accuracy) will double than vernier caliper.Like this, not only overcome an above difficult problem, and the resolving accuracy height, convenient reading.Measuring method is identical with the preceding paragraph patent, the Therefore, omited.
Claims (2)
1, the inside and outside vernier caliper of a kind of measurement, it comprises the blade, chi frame of a band main scale, compressing tablet, the clench nail that band is paid chi, it is characterized in that at the two ends of blade and chi frame symmetry is hinged with a chi frame respectively, between two chi framves, live and be connected with a pivot pin, be respectively arranged with a measuring head in the inboard and the outside of the chi frame other end; Chi frame measuring head is a pivot pin to chi frame and blade and chi frame 1/2nd of the position distance that is hinged to the distance of pivot pin.
2, vernier caliper according to claim 1 is characterized in that measuring head is circular-arc measuring head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03211526 CN2608940Y (en) | 2003-02-25 | 2003-02-25 | Inside-outside vernier callipers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03211526 CN2608940Y (en) | 2003-02-25 | 2003-02-25 | Inside-outside vernier callipers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2608940Y true CN2608940Y (en) | 2004-03-31 |
Family
ID=34159038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03211526 Expired - Fee Related CN2608940Y (en) | 2003-02-25 | 2003-02-25 | Inside-outside vernier callipers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2608940Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095343A (en) * | 2010-11-26 | 2011-06-15 | 力帆实业(集团)股份有限公司 | Multifunctional measurement device |
| CN105180762A (en) * | 2015-04-30 | 2015-12-23 | 张铭轩 | Tongs-shaped thickness gauge |
| CN105547105A (en) * | 2016-01-06 | 2016-05-04 | 张海燕 | Multifunctional caliper |
| CN109945758A (en) * | 2019-04-25 | 2019-06-28 | 陕西工业职业技术学院 | A kind of clamp |
| CN111811355A (en) * | 2020-08-31 | 2020-10-23 | 青岛汽车零部件科技创新服务有限公司 | Multi-stage amplification structure and vernier caliper with high measurement precision |
| CN114678811A (en) * | 2022-05-27 | 2022-06-28 | 成都工业职业技术学院 | Wire stripper |
-
2003
- 2003-02-25 CN CN 03211526 patent/CN2608940Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095343A (en) * | 2010-11-26 | 2011-06-15 | 力帆实业(集团)股份有限公司 | Multifunctional measurement device |
| CN102095343B (en) * | 2010-11-26 | 2012-10-31 | 力帆实业(集团)股份有限公司 | Multifunctional measurement device |
| CN105180762A (en) * | 2015-04-30 | 2015-12-23 | 张铭轩 | Tongs-shaped thickness gauge |
| CN105547105A (en) * | 2016-01-06 | 2016-05-04 | 张海燕 | Multifunctional caliper |
| CN109945758A (en) * | 2019-04-25 | 2019-06-28 | 陕西工业职业技术学院 | A kind of clamp |
| CN111811355A (en) * | 2020-08-31 | 2020-10-23 | 青岛汽车零部件科技创新服务有限公司 | Multi-stage amplification structure and vernier caliper with high measurement precision |
| CN111811355B (en) * | 2020-08-31 | 2021-09-10 | 青岛汽车零部件科技创新服务有限公司 | Multi-stage amplification structure and vernier caliper with high measurement precision |
| CN114678811A (en) * | 2022-05-27 | 2022-06-28 | 成都工业职业技术学院 | Wire stripper |
| CN114678811B (en) * | 2022-05-27 | 2022-09-02 | 成都工业职业技术学院 | Wire stripper |
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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: 20040331 |