CN2041420U - Ring type vernier dial for theodolite - Google Patents
Ring type vernier dial for theodolite Download PDFInfo
- Publication number
- CN2041420U CN2041420U CN 88216305 CN88216305U CN2041420U CN 2041420 U CN2041420 U CN 2041420U CN 88216305 CN88216305 CN 88216305 CN 88216305 U CN88216305 U CN 88216305U CN 2041420 U CN2041420 U CN 2041420U
- Authority
- CN
- China
- Prior art keywords
- ring
- ring type
- dial
- vernier dial
- theodolite
- 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.)
- Pending
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a ring type vernier dial capable of quick collimation and leveling for a theodolite. The ring type vernier dial belongs to the technical field of measuring instruments. The utility model adopts a ring type vernier dial which is composed of a plurality of verniers (1) arranged on a ring type dial (2) which is fixed on a bracket (3) and whose scales are 0-360 DEG. The ring type vernier dial is arranged and fixed on the base of a theodolite. The rotation angle between an alidade and the base can be read according to a vertical reticle of the ring type vernier dial and the bottom of the alidade. Therefore, the problems that the work efficiency is low existing in the quick collimation and leveling of a theodolite, and the labor intensity is large can be solved. The ring type vernier dial can be widely applied to various optical theodolites.
Description
The utility model is a kind of ring-type vernier dial with leveling can sighted fast that is used on the transit, belongs to the surveying instrument technical field.
At present, the leveling of widely used optical theodolite operation is performed such: rotate Anping spiral and make the bubble of universal level placed in the middle, preliminary leveling instrument.Rotating alidade then makes the horizontal dial level parallel with the line of any two Anping spirals, rotate two spirals in the opposite direction, make bubble placed in the middle, alidade turns over 90 ° then, make vertical this two Anping spiral line of level, and rotate the 3rd Anping spiral and make bubble placed in the middle, so repeatedly, up to going on any position when alidade, bubble maximum deviation value is no more than till 1/2nd scale values.During observation, especially in multiple spot repeated measures and the engineering survey setting-out work, the point in each orientation can only be observed certainly in the horizontal dial in the eyepiece and read the position angle, and order finds.Exist problems such as inefficiency and labour intensity is greatly and inadequately accurately directly perceived in two kinds of operating process of above transit.General 90 ° of the method rotation alidades of range estimation that adopt are accurately directly perceived inadequately in the leveling process, often need repeatedly repeat to adjust.Each orientation summary is sighted cumbersomely during the multiple spot repeated measures, observes in the eyepiece rough reading gruelling certainly, and it is a tax on one's mind to take eye, causes work efficiency not high.Above-mentioned deficiency is that design of the present utility model has proposed clear and definite task.
Invention task of the present utility model provides a kind of transit ring-type vernier dial that can make the accurately rapid leveling of transit and accurate witness marker directly perceived is provided for the multiple spot repeated measures.
Figure of description 1 is an organigram of the present utility model.Among the figure: 1 vernier, 2 ring-type scales, 3 supports.
Figure of description 2 is an A-A sectional view of the present utility model.
Figure of description 3 is the synoptic diagram of the utility model installation site on transit.Among the figure: 1 vernier, 2 ring-type scales, 3 supports, 4 pedestals, 5 grooves, 6 alidades, 7 Anping spirals.
Main points of the present utility model are: be on 0～360 ° the ring-type scale ring-type vernier dial that some verniers consist of to be installed by being fixed on scale on the support, it is fixed on above the pedestal of theodolite, utilize a vertical groove of alidade bottom, can read the rotational angle between alidade and the pedestal, thus rapidly leveling. Vernier is placed each diverse location of ring-type scale, can mark intuitively and accurately the azimuth of each observation station, find out intuitively the position of each observation station in the time of can making repeated measures, sight fast. Thereby greatly increase work efficiency, reduce labour intensity. Finished preferably invention task of the present utility model.
Following according to Figure of description, structure of the present utility model is described: transit is made of vernier 1, ring-type scale 2 and support 3 with the ring-type vernier dial, it is characterized in that vernier 1 is installed on the ring-type scale 2, is carved with 0～360 ° of all angle index on the ring-type scale 2.In embodiment of the present utility model, this ring-type vernier dial can all adopt plastic material heat to annotate and make, ring-type scale 2 and support 3 can be made into one, 0～360 ° of all angle index on the ring-type scale can once form with the ring-type scale, wherein per 30 ° of grooves are a dash line, so that clearer during reading.Adopted dovetail groove elasticity combination between seven verniers 1 and the ring-type scale 2.
The utility model has the advantages that: can make transit quickly and easily summary sight direction, shorten observation time, improved observed efficiency and quality, alleviate surveyor's labour intensity.Utilize the demonstration of rotational angle to save time fast with the instrument leveling.Also can be in engineering survey setting-out work by the fixed setting more easily of the scale on the scale.
Claims (3)
1, a kind of transit that can sight fast with leveling that is used on the transit is made of vernier 1, ring-type scale 2 and support 3 with the ring-type vernier dial, it is characterized in that vernier 1 is installed on the ring-type scale 2, is carved with 0～360 ° of all angle index on the ring-type scale 2.
2, according to the described transit of claim 1 ring-type vernier dial, it is characterized in that vernier 1, ring-type scale 2 and support 3 can all adopt plastic material heat to annotate and make, ring-type scale 2 and support 3 can be made into one, and 0～360 ° of all angle index on the ring-type scale can once form with the ring-type scale.
3,, it is characterized in that having adopted between seven verniers 1 and the ring-type scale 2 dovetail groove elasticity combination according to the described transit of claim 1 ring-type vernier dial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88216305 CN2041420U (en) | 1988-11-16 | 1988-11-16 | Ring type vernier dial for theodolite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88216305 CN2041420U (en) | 1988-11-16 | 1988-11-16 | Ring type vernier dial for theodolite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2041420U true CN2041420U (en) | 1989-07-19 |
Family
ID=4848975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88216305 Pending CN2041420U (en) | 1988-11-16 | 1988-11-16 | Ring type vernier dial for theodolite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2041420U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210816B (en) * | 2006-12-31 | 2010-09-29 | 哈尔滨市光学仪器厂 | Compass |
| CN102878977A (en) * | 2012-09-27 | 2013-01-16 | 中国科学院云南天文台 | Multifunctional astronomical theodolite |
| CN105065885A (en) * | 2015-07-23 | 2015-11-18 | 柳州铁道职业技术学院 | Bracket for laser plummet projection laser targets |
| CN110044311A (en) * | 2019-04-26 | 2019-07-23 | 江苏理工学院 | A kind of dovetail groove guide rail slide unit measuring device and its measurement method |
| CN112503351A (en) * | 2020-10-29 | 2021-03-16 | 中国科学院西安光学精密机械研究所 | Thread type leveling mechanism for theodolite |
-
1988
- 1988-11-16 CN CN 88216305 patent/CN2041420U/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210816B (en) * | 2006-12-31 | 2010-09-29 | 哈尔滨市光学仪器厂 | Compass |
| CN102878977A (en) * | 2012-09-27 | 2013-01-16 | 中国科学院云南天文台 | Multifunctional astronomical theodolite |
| CN102878977B (en) * | 2012-09-27 | 2014-10-08 | 中国科学院云南天文台 | Multifunctional astronomical theodolite |
| CN105065885A (en) * | 2015-07-23 | 2015-11-18 | 柳州铁道职业技术学院 | Bracket for laser plummet projection laser targets |
| CN110044311A (en) * | 2019-04-26 | 2019-07-23 | 江苏理工学院 | A kind of dovetail groove guide rail slide unit measuring device and its measurement method |
| CN112503351A (en) * | 2020-10-29 | 2021-03-16 | 中国科学院西安光学精密机械研究所 | Thread type leveling mechanism for theodolite |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned | ||
| WD01 | Invention patent application deemed withdrawn after publication |