CN202361991U - Back vision centering positioning instrument for plane measurement - Google Patents
Back vision centering positioning instrument for plane measurement Download PDFInfo
- Publication number
- CN202361991U CN202361991U CN2012200510937U CN201220051093U CN202361991U CN 202361991 U CN202361991 U CN 202361991U CN 2012200510937 U CN2012200510937 U CN 2012200510937U CN 201220051093 U CN201220051093 U CN 201220051093U CN 202361991 U CN202361991 U CN 202361991U
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- centering
- scale
- top cover
- framework
- backsight
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a back vision centering positioning instrument for plane measurement. The back vision centering positioning instrument is high in precision and convenient in use, can be used for realizing rapid coordinate point centering, and can be kept stable for a long time. The back vision centering positioning instrument comprises a support suspension system and a rotary centering system, wherein the support suspension system comprises a foot stand and a top cover supported by the foot stand; the rotary centering system is arranged in the top cover, and the shape of the rotary centering system is a rectangular frame; the upper end and the lower end of the frame are respectively fixed with an upper disc and a lower disc; the frame, the upper disc and the lower disc can synchronously rotate on the same axis around a rotary shaft on the top cover; the upper disc and the lower disc are respectively fixed with an upper scale and a lower scale of which the specification and size are same, and the scale line positions correspond; and the upper scale is also provided with a plummet which is provided with a vertical line and can slide along the mark of the scale. The back vision centering positioning instrument for plane surveying is high in precision and convenient in use, can be used for realizing rapid coordinate point centering, and can be kept stable for a long time.
Description
Technical field
The utility model relates to engineering survey, particularly carries out the location instrument of backsight centering in the plane surveying.
Background technology
Main total powerstation, the transit of using measured in the plane surveying at present, all needs backsight centering to set up coordinate system in the measuring process.The precision of backsight centering directly has influence on the overall precision of surveying work.Backsight centering method commonly used is hung plumb bob method, prism centering method.
Hanging the plumb bob method can adopt manual work to hang plumb bob also can to hang plumb bob by tripod; Adopt artificial when hanging plumb bob centering because the shake of staff is repeatedly checked the centering process need can confirm, if the plumb bob suspension centre then is difficult to guarantee enough measuring accuracy greatly the time with the coordinate points discrepancy in elevation; Hang then complex operation of plumb bob by tripod, effect is low, can't satisfy the conditional mission requirements of Measuring Time, as on existing supply line, measuring;
Adopt prism centering method because the prism holder precision is lower, can not adapt to high-precision measurement.
Summary of the invention
The utility model technical matters to be solved is the technical deficiency to above-mentioned existence, provides a kind of precision high, easy to use, can realize the quick centering coordinate points, and can keep stable plane surveying backsight centering orientator for a long time.
The utility model solves the technical scheme that its technical matters adopted:
Plane surveying backsight centering orientator; Include supported and suspended system and rotation center support system; Supported and suspended system includes foot rest and by the top cover of foot rest support column; Described rotation center support system is installed in top cover inside, it is characterized in that: described rotation center support system is shaped as the framework of rectangle, and the top and bottom of framework are fixed with disk and lower disc respectively; Framework, last disk and lower disc three can rotate on same axis around the rotating shaft on the top cover synchronously; It is identical also to be installed with sized on last disk and the lower disc respectively, corresponding scale and the following scale gone up in scale mark position, and on last scale, also being equipped with can be along the plumb bob of the band vertical line of scale label slip.
In such scheme, described top cover is a semicircular cylinder cover shape structure, also is provided with the centering bubble on the surface of top cover.
In such scheme, described framework is a stretching structure, and both sides are separately installed with expansion link and regulate frame height, and the expansion link fastener also is installed on expansion link.
In such scheme, the height of described foot rest is less than or equal to the maximum height of framework, and foot rest is around being supported on the top cover, and number is no less than 3.
In such scheme, the vertical line of described plumb bob is positioned at the homonymy of scale up and down, and is close to scale up and down.
The principle of the utility model is to adopt tripod as supporting structure; Lower disc is set, scale synchronously is set in last lower disc up and down, removable plumb bob is set on last scale; Following scale adopts expansion link telescopic movable up and down, can quick closely connected alignment coordinates point.According to following rod reading, mobile plumb bob with the reading place, can be realized centering to last scale.Scale up and down is set, range estimation mobile centering process in plumb bob plane is converted into unidirectional reading location moves.
The beneficial effect of the utility model is:
1, the congruency of lower disc in the utilization, with the centering reduced distances, weak point can be 0, improves measuring accuracy.
2, simple to operate, work efficiency is high.
3, satisfy most of centering requirement, applied range.
Description of drawings
Fig. 1 is the utility model embodiment front view
Fig. 2 is the utility model embodiment vertical view
Fig. 3 is the utility model embodiment right view
Among the figure: 1. go up disk; 2. go up scale; 3. centering bubble; 4. foot rest; 5. expansion link fastener; 6. expansion link;
7. plumb bob; 8. lower disc; 9. descend scale; 10. top cover, 11. frameworks.
Embodiment
Below in conjunction with embodiment, the utility model is further described:
The plane surveying backsight centering orientator shown in Figure 3 like Fig. 1 Fig. 2; Include supported and suspended system and rotation center support system; Supported and suspended system includes foot rest 4 and by the top cover 10 of foot rest 4 support columns; Described rotation center support system is installed in top cover 10 inside, is shaped as the framework 11 of rectangle, and the top and bottom of framework 11 are fixed with disk 1 and lower disc 8 respectively; Framework 11, last disk 1 and lower disc 8 threes can rotate on same axis around the rotating shaft on the top cover 10 synchronously; It is identical also to be installed with sized on last disk 1 and the lower disc 8 respectively, corresponding scale 2 and the following scale 9 gone up in scale mark position, and on last scale 2, also being equipped with can be along the plumb bob 7 of the band vertical line of scale label slip.
In the present embodiment, described top cover 10 is a semicircular cylinder cover shape structure, also is provided with centering bubble 3 on the surface of top cover 10.
In the present embodiment, described framework 11 is a stretching structure, and both sides are separately installed with expansion link 6 and regulate frame height, and expansion link fastener 5 also is installed on expansion link 6.
In the present embodiment, the height of described foot rest 4 equals the maximum height of framework 11, and foot rest 4 is around being supported on the top cover 10, and number is 3.
In the present embodiment, the vertical line of described plumb bob 7 is positioned at the homonymy of scale up and down, and is close to scale up and down.
During use the utility model is placed on the coordinate points that needs centering; Make coordinate points be positioned at lower disc 8 scopes, adjustment foot rest 4 makes centering bubble 3 be positioned at central point, and the length of unclamping expansion link fastener 5 adjustment expansion links 6 makes lower disc and coordinate points 10 closely connected; Rotation scale 9 down clings to coordinate points; Read down scale 9 readings, move plumb bob 7 to last scale 2 and following scale 9 with the reading place, promptly accomplish the centering of this coordinate points.
The above disclosed preferred embodiment that is merely the utility model; The core of the utility model is to use the scale up and down that is arranged in the lower disc; Measure the particular location of plumb bob line, realize quick centering, can not limit the interest field of the utility model certainly with this; Therefore the equivalence of being done according to the utility model claim changes, and still belongs to the protection domain of the utility model.
Claims (5)
1. plane surveying backsight centering orientator; Include supported and suspended system and rotation center support system; Supported and suspended system includes foot rest (4) and by the top cover (10) of foot rest (4) support column; Described rotation center support system is installed in top cover (10) inside; It is characterized in that: described rotation center support system is shaped as the framework (11) of rectangle; The top and bottom of framework (11) are fixed with disk (1) and lower disc (8) respectively, and framework (11), going up disk (1) can be around the rotation synchronously on same axis of the rotating shaft on the top cover (10) with lower disc (8) three, and it is identical also to be installed with sized on last disk (1) and the lower disc (8) respectively; Corresponding scale (2) and the following scale (9) gone up in scale mark position, on last scale (2), also being equipped with can be along the plumb bob (7) of the band vertical line of scale label slip.
2. plane surveying backsight centering orientator as claimed in claim 1 is characterized in that: described top cover (10) is a semicircular cylinder cover shape structure, also is provided with centering bubble (3) on the surface of top cover (10).
3. plane surveying backsight centering orientator as claimed in claim 1; It is characterized in that: described framework (11) is a stretching structure; Both sides are separately installed with expansion link (6) and regulate frame height, and expansion link fastener (5) also is installed on expansion link (6).
4. plane surveying backsight centering orientator as claimed in claim 1 is characterized in that: the height of described foot rest (4) is less than or equal to the maximum height of framework (11), and foot rest (4) is around being supported on the top cover (10), and number is more than or equal to 3.
5. plane surveying backsight centering orientator as claimed in claim 1 is characterized in that: the vertical line of described plumb bob (7) is positioned at the homonymy of scale up and down, and is close to scale up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200510937U CN202361991U (en) | 2012-02-17 | 2012-02-17 | Back vision centering positioning instrument for plane measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200510937U CN202361991U (en) | 2012-02-17 | 2012-02-17 | Back vision centering positioning instrument for plane measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202361991U true CN202361991U (en) | 2012-08-01 |
Family
ID=46573172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200510937U Expired - Lifetime CN202361991U (en) | 2012-02-17 | 2012-02-17 | Back vision centering positioning instrument for plane measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202361991U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251885A (en) * | 2013-06-26 | 2014-12-31 | 宝山钢铁股份有限公司 | Adjustment method of position deviation of welded pipe welding line and ultrasonic flaw detection dolly |
| CN104278641A (en) * | 2014-10-16 | 2015-01-14 | 中铁七局集团第三工程有限公司 | Tied arch bridge hanger rod embedded hole centering device and method |
-
2012
- 2012-02-17 CN CN2012200510937U patent/CN202361991U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251885A (en) * | 2013-06-26 | 2014-12-31 | 宝山钢铁股份有限公司 | Adjustment method of position deviation of welded pipe welding line and ultrasonic flaw detection dolly |
| CN104251885B (en) * | 2013-06-26 | 2016-12-07 | 宝山钢铁股份有限公司 | Welded tube welding seam and the method for adjustment of ultrasonic examination dolly position deviation |
| CN104278641A (en) * | 2014-10-16 | 2015-01-14 | 中铁七局集团第三工程有限公司 | Tied arch bridge hanger rod embedded hole centering device and method |
| CN104278641B (en) * | 2014-10-16 | 2015-12-23 | 中铁七局集团第三工程有限公司 | Tied arch bridge hanger rod embedded hole centralising device and centering method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |