CN102878954A - Laser protractor - Google Patents
Laser protractor Download PDFInfo
- Publication number
- CN102878954A CN102878954A CN 201210419788 CN201210419788A CN102878954A CN 102878954 A CN102878954 A CN 102878954A CN 201210419788 CN201210419788 CN 201210419788 CN 201210419788 A CN201210419788 A CN 201210419788A CN 102878954 A CN102878954 A CN 102878954A
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- China
- Prior art keywords
- laser
- protractor
- arm
- angulation
- rotating shaft
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- 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.)
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Abstract
The invention discloses a laser protractor which consists of a first angle measuring arm, a second angle measuring arm, a protractor, a rotating shaft, a first laser and a second laser, wherein one end of the first angle measuring arm is fixedly connected with the first laser, one end of the second angle measuring arm is fixedly connected with the second laser, a first angle measuring arm body is superposed with a 00 angle scale line of the protractor and is fixedly connected with the protractor, the rotating shaft is fixed in the circle center of the protractor, and the other end of the second angle measuring arm is fixed on the rotating shaft. The laser protractor is simple in structure, practical and convenient, and can realize non-contact type angle measurement.
Description
Technical field
The invention belongs to the surveying instrument field, be specially a kind of amount of laser light hornwork.
Background technology
In engineer operation and mechanical drawing, often need to measure various angles.The most frequently used survey instrument is protractor, but protractor belongs to contact type measurement, when needs are measured distant objects to observer's subtended angle equal angles, has just run into difficulty with general protractor.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of amount of laser light hornwork that can conveniently measure exactly various angles.
In order to solve the problems of the technologies described above, a kind of amount of laser light hornwork of the present invention is comprised of the first angulation arm, the second angulation arm, protractor, rotating shaft, the first laser instrument and second laser, it is characterized in that: fixedly connected described the first laser instrument of an end of described the first angulation arm, the fixedly connected described second laser of an end of described the second angulation arm; 0 of the arm body of described the first angulation arm and described protractor
0The angle groove overlaps and is fixedly connected with described protractor; Described rotating shaft is fixed on the circle centre position of described protractor, and the other end of described the second angulation arm is fixed in the described rotating shaft.
The Laser emission direction of described the first laser instrument is consistent with the brachium direction of described the first angulation arm, and the Laser emission direction of described second laser is consistent with the brachium direction of described the second angulation arm.
When measuring the determinand two ends to observer's subtended angle, one end of the laser directive determinand that described the first laser instrument is sent, rotate described the second angulation arm, make the other end of the laser directive determinand that described second laser sends, can on described protractor, read this determinand to observer's subtended angle according to the position of described the second angulation arm.
The present invention is owing to adopting above-mentioned design, and it is simple in structure, and is practical and convenient, can realize the non-contact measurement of angle.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention.
Fig. 2 is practical measuring examples figure of the present invention.
Among the figure: 1. the first angulation arm, 2. the second angulation arm, 3. protractor, 4. rotating shaft, 5. the first laser instrument, 6. second laser, 7. determinand.
Embodiment
As shown in Figure 1, the present invention is comprised of the first angulation arm 1, the second angulation arm 2, protractor 3, rotating shaft 4, the first laser instrument 5 and second laser 6, the fixedly connected second laser 6 of one end of fixedly connected the first laser instrument of one end of the first angulation arm 15, the second angulation arms 2; 0 of the arm body of the first angulation arm 1 and protractor 3
0The angle groove overlaps and is fixedly connected with protractor 3; Rotating shaft 4 is fixed on the circle centre position of protractor 3, and the other end of the second angulation arm 2 is fixed in the rotating shaft 4, the second angulation arm 2 can be around the shaft 4 at the rotation with in surface that is parallel to protractor 3.
The Laser emission direction of the first laser instrument 5 is consistent with the brachium direction of the first angulation arm 1, and the Laser emission direction of second laser 6 is consistent with the brachium direction of the second angulation arm 2.
As shown in Figure 2, when measuring determinand 7 two ends to observer's subtended angle, one end of the laser directive determinand 7 that the first laser instrument 5 is sent, rotate the second angulation arm 2 and make the other end of the laser directive determinand 7 that second laser 6 sends, can on protractor 3, read subtended angle θ according to the position of the second angulation arm 2.
Claims (2)
1. amount of laser light hornwork, formed by the first angulation arm (1), the second angulation arm (2), protractor (3), rotating shaft (4), the first laser instrument (5) and second laser (6), it is characterized in that: fixedly connected the first laser instrument of an end of described the first angulation arm (1) (5), the fixedly connected second laser of an end (6) of described the second angulation arm (2); 0 of the arm body of described the first angulation arm (1) and protractor (3)
0The angle groove overlaps and is fixedly connected with protractor (3); Described rotating shaft (4) is fixed on the circle centre position of protractor (3), and the other end of described the second angulation arm (2) is fixed in the rotating shaft (4).
2. a kind of amount of laser light hornwork according to claim 1, it is characterized in that: the Laser emission direction of described the first laser instrument (5) is consistent with the brachium direction of the first angulation arm (1), and the Laser emission direction of described second laser (6) is consistent with the brachium direction of the second angulation arm (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210419788 CN102878954A (en) | 2012-10-29 | 2012-10-29 | Laser protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210419788 CN102878954A (en) | 2012-10-29 | 2012-10-29 | Laser protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102878954A true CN102878954A (en) | 2013-01-16 |
Family
ID=47480377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210419788 Pending CN102878954A (en) | 2012-10-29 | 2012-10-29 | Laser protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102878954A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423959A (en) * | 2015-12-18 | 2016-03-23 | 中山市民众镇接源小学 | Infrared laser number-marking protractor |
| CN109357638A (en) * | 2018-09-25 | 2019-02-19 | 安徽科恩新能源有限公司 | A kind of pipe angle measuring instrument |
| CN110030930A (en) * | 2019-03-28 | 2019-07-19 | 淮阴工学院 | Portable trace angle and length acquisition device |
| CN114440744A (en) * | 2022-04-11 | 2022-05-06 | 武汉市明煌建筑劳务有限公司 | Bridge offset angle measuring device based on plane fitting and utilizing similar triangle principle |
-
2012
- 2012-10-29 CN CN 201210419788 patent/CN102878954A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423959A (en) * | 2015-12-18 | 2016-03-23 | 中山市民众镇接源小学 | Infrared laser number-marking protractor |
| CN109357638A (en) * | 2018-09-25 | 2019-02-19 | 安徽科恩新能源有限公司 | A kind of pipe angle measuring instrument |
| CN110030930A (en) * | 2019-03-28 | 2019-07-19 | 淮阴工学院 | Portable trace angle and length acquisition device |
| CN110030930B (en) * | 2019-03-28 | 2021-10-01 | 淮阴工学院 | Portable trace angle and length acquisition device |
| CN114440744A (en) * | 2022-04-11 | 2022-05-06 | 武汉市明煌建筑劳务有限公司 | Bridge offset angle measuring device based on plane fitting and utilizing similar triangle principle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130116 |