CN1982844A - High-precision level - Google Patents
High-precision level Download PDFInfo
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- CN1982844A CN1982844A CN 200510020041 CN200510020041A CN1982844A CN 1982844 A CN1982844 A CN 1982844A CN 200510020041 CN200510020041 CN 200510020041 CN 200510020041 A CN200510020041 A CN 200510020041A CN 1982844 A CN1982844 A CN 1982844A
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- scale
- vernier
- mark post
- measured
- precision
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
A precise water level is prepared as connecting mark post to electromagnetic sucker through positioning pin, arranging some positioning holes on mark post, connecting scale to mark post through connection rod, setting vernier on scale and setting line weight on connection rod.
Description
Technical field
The present invention relates to a kind of surveying instrument, particularly a kind of high-precision spirit-leveling instrument.
Background technology
Spirit-leveling instrument is used very extensive in fields such as civil engineering, installations, be mainly used to measure relative height between point of fixity, the stationary plane and relative distance between points.General spirit-leveling instrument measuring accuracy is very low, generally reaches 1mm, and this precision can reach accuracy requirement basically in the civil engineering field, but closes at high precision erecting beds such as machinery installation, electric installations, and the precision of 1mm level just seems that some is coarse.In addition, the Sopwith staff blade of spirit-leveling instrument is a rectangular parallelepiped aluminium, in the time of on Sopwith staff being placed on to be measured, the baseplane of Sopwith staff and to be measured 's contact relation guarantees with hand steered positive Sopwith staff by the gauger, the gauger is without any reference frame, just rely on eyes to observe and guarantee the vertical of Sopwith staff, can introduce very mistake artificially like this.When face to be measured had certain inclination angle, situation was more complicated, if guarantee Sopwith staff vertically then Sopwith staff with to be measured between can only be that line contacts; If guarantee Sopwith staff with to be measured between full contact then observe the Sopwith staff groove of seeing the camera lens and will tilt from spirit-leveling instrument, so measuring error is all very big in any case in this case, the precision of 1mm also is difficult to assurance.
Summary of the invention
The purpose of this invention is to provide the high spirit-leveling instrument of a kind of measuring accuracy.
The object of the present invention is achieved like this: a kind of high-precision level, comprise mark post 2, and mark post 2 is connected with magnechuck 1 by register pin 5, mark post 2 is provided with pilot hole 8, scale 3 is connected with mark post 2 by connecting link 9, and scale 3 is provided with vernier 4, and connecting link 9 is provided with plumb bob 7.
High-precision level provided by the present invention owing to adopt magnechuck to be connected with mark post by register pin, makes Sopwith staff bottom surface and plane contact to be measured abundant, adopts the structure that vernier is set on scale, has improved measuring accuracy.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present invention.
Embodiment
The present invention adopts following structure: it mainly is made up of magnechuck 1, mark post 2, scale 3, vernier 4 and plumb bob 7, and wherein magnechuck 1 is a calutron, and when 6 dozens on sucker switch during in the normal position, sucker is nonmagnetic, can take away from iron plate easily; When 6 dozens on sucker switch during in the working position, sucker produces magnetic force, can be adsorbed on the iron plate securely.Mark post 2 adopts pilot pin to flexibly connect with sucker 1, and promptly stud bolt, packing ring, nut connect, and mark post 2 can swing around stud bolt; Magnechuck 1 upper surface has a special mark, when the toe of plumb bob 7 is aimed at this mark, illustrates that scale 3 is vertical.7 equally spaced pilot holes 8 are arranged on the mark post 2, and wherein any 3 continuous pilot holes 8 can fix scale 3 and vernier 4 by connecting link 9 usefulness bolts, nut combinations, and vernier 4 can slide up and down on the blade of scale 3.The total meter full scale of diagram scale is 30mm, and minimum scale is 1mm; Vernier groove zone length is 9mm, is divided into 10 equal portions, and the principle of work of scale and vernier is the same with vernier caliper, can be as accurate as 0.1mm during the diagram multiple measurement.The measurement range of scale is less among the figure one, just be used for illustrating the principle of work of scale and vernier, can suitably increase the scale range during practical application and increase measurement range, also can increase vernier groove zone length and increase measuring accuracy, the conversion relation of vernier groove zone length and measuring accuracy is: the length of 9mm is divided into 10 equal portions, and then measuring accuracy is 0.1mm; The length of 49mm is divided into 50 equal portions, and then precision is 0.02mm; Be length that the zone of X is divided into the X+1 equal portions promptly, then measuring accuracy is 1/ (X+1), principle and vernier caliper.Also can directly select for use general vernier caliper to replace scale and vernier, only need on vernier caliper, increase by three fixedly usefulness support arm just.
During measurement, at first the sucker switch 6 of this device is got to the normal position, handle assembly is put on the irony plane to be measured, after guaranteeing that magnechuck 1 and plane contact are abundant, sucker switch 6 is got to the working position, sucker 1 will be adsorbed on the irony plane to be measured firmly, the gauger needs to set upright mark post 2 with hand, special marking on the toe aligning magnechuck 1 of plumb bob 7, keep the observation camera lens that begins to ajust spirit-leveling instrument spirit-leveling instrument camera lens one side's gauger this moment, and observe 0 groove of vernier by camera lens.The position of vernier 4 is constantly adjusted in the observation of operator's basis when setting upright scale 3,0 groove of the line of crosshair horizontal direction and vernier overlaps in the spirit-leveling instrument camera lens, observe the scale 3 and position of vernier 4 this moment, and write down the data X of this point according to the notation system of vernier caliper; The data Y on another plane to be measured is measured in action above repeating, and then the value of Y-X is exactly the relative elevation of two positions.This numerical value is high greater than 0 first of second ratio, otherwise then low.
Claims (1)
1, a kind of high-precision level, comprise mark post (2), it is characterized in that: mark post (2) is connected with magnechuck (1) by location select (5), mark post (2) is provided with pilot hole (8), scale (3) is connected with mark post (2) by connecting link (9), scale (3) is provided with vernier (4), and connecting link (9) is provided with plumb bob (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510020041 CN1982844A (en) | 2005-12-15 | 2005-12-15 | High-precision level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510020041 CN1982844A (en) | 2005-12-15 | 2005-12-15 | High-precision level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1982844A true CN1982844A (en) | 2007-06-20 |
Family
ID=38165533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510020041 Pending CN1982844A (en) | 2005-12-15 | 2005-12-15 | High-precision level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1982844A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661734A (en) * | 2012-04-15 | 2012-09-12 | 曹玉升 | Box staff controller for controlling verticality of box staff and reducing measurement altitude difference error |
| CN101788285B (en) * | 2010-02-01 | 2012-11-07 | 洛阳规划建筑设计有限公司 | Levelling staff capable of adjusting observation position and measurement technique thereof |
| CN103759704A (en) * | 2014-01-15 | 2014-04-30 | 王胜杰 | Handheld movable elevation mark cursor sliding staff |
| CN104006794A (en) * | 2014-06-18 | 2014-08-27 | 西南石油大学 | Automatic box staff straightening device and use method thereof |
| CN110793497A (en) * | 2019-11-01 | 2020-02-14 | 湖北理工学院 | Novel tower ruler system for measuring suspended elevation and use method |
-
2005
- 2005-12-15 CN CN 200510020041 patent/CN1982844A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788285B (en) * | 2010-02-01 | 2012-11-07 | 洛阳规划建筑设计有限公司 | Levelling staff capable of adjusting observation position and measurement technique thereof |
| CN102661734A (en) * | 2012-04-15 | 2012-09-12 | 曹玉升 | Box staff controller for controlling verticality of box staff and reducing measurement altitude difference error |
| CN103759704A (en) * | 2014-01-15 | 2014-04-30 | 王胜杰 | Handheld movable elevation mark cursor sliding staff |
| CN104006794A (en) * | 2014-06-18 | 2014-08-27 | 西南石油大学 | Automatic box staff straightening device and use method thereof |
| CN104006794B (en) * | 2014-06-18 | 2016-09-14 | 西南石油大学 | A kind of Sopwith staff auto-strengthening device and using method thereof |
| CN110793497A (en) * | 2019-11-01 | 2020-02-14 | 湖北理工学院 | Novel tower ruler system for measuring suspended elevation and use method |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |