CN209557008U - Section of jurisdiction proper circle measuring instrument - Google Patents
Section of jurisdiction proper circle measuring instrument Download PDFInfo
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- CN209557008U CN209557008U CN201920055544.6U CN201920055544U CN209557008U CN 209557008 U CN209557008 U CN 209557008U CN 201920055544 U CN201920055544 U CN 201920055544U CN 209557008 U CN209557008 U CN 209557008U
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- jurisdiction
- section
- pedestal
- measuring instrument
- proper circle
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Abstract
It include the pedestal for being close to section of jurisdiction, the laser range finder being set on the base the utility model relates to section of jurisdiction proper circle measuring instrument, base top is symmetrically opened up there are two card slot, and laser range finder is arranged in card slot.It can measure at any time, easy to operate, workload is small, the higher proper circle measuring instrument of affected by environment small and precision, while also having the function of measuring section of jurisdiction faulting of slab ends.
Description
Technical field
The utility model relates to pipeline construction measuring device more particularly to the measuring devices of section of jurisdiction ovality.
Background technique
Section of jurisdiction ovality is defined as: after the assembled cyclization of circular tunnel pipe-plate lining tunnel maximum and the difference of minimum diameter with
The ratio of Tunnel Design internal diameter, is indicated with permillage.Pipe sheet assembling tolerance is 5 ‰, and molding tunnel is 6 ‰.
The method of measurement section of jurisdiction ovality mainly hangs plummet method, total station profile scanning method, laser tunnel cross-section at present
Instrument etc..But various methods have its limitation, such as hang plummet method and need the work of a large amount of manual measurements, complicated for operation, difficulty is higher,
And precision is not high.And total station profile scanning method, the methods of laser tunnel cross-section instrument need to import datum mark, tunnel reference line
Deng, it is also necessary to professional software carries out processing calculating, needs professional survey crew just and can measure, not convenient enough, and may when measurement
Influence normal tunneling construction.There are also a common limitations can only exactly measure the tunnel oval-shaped degree of molding for above method, cannot survey
The ovality of section of jurisdiction after the completion of amount is assembled, shadow also vulnerable to construction installation such as air duct, walkway board etc. not strong to construction directiveness
It rings.
Summary of the invention
In order to solve the above technical problems, providing section of jurisdiction proper circle measuring instrument, provided technical solution is as follows, includes tight
Paste the pedestal of section of jurisdiction, the laser range finder that is set on the base, base top symmetrically opens up that there are two card slot, laser range finders
It is arranged in card slot.
Based on the above technical solution, the bottom of pedestal is matched with section of jurisdiction inner wall, and is fitted on the inner wall of section of jurisdiction.
Based on the above technical solution, the reverse extending wire clamp angle of laser range finder central axes is 90 degree, Laser Measuring
Distance meter is 45 ° with the radius angle Jing Guo base center.
Based on the above technical solution, base bottom offers lower accommodation groove, and that slides in lower accommodation groove is provided with
Auxiliary scale, the fixing bolt of base side setting is inserted into lower accommodation groove and fixed auxiliary scale.
Easy to operate the utility model has the advantages that can measure at any time, workload is small, the higher proper circle of affected by environment small and precision
Measuring instrument, while also having the function of measuring section of jurisdiction faulting of slab ends.The surveyed measurement point position of the method can select according to the actual situation, no
Influenced by construction installation, it is most important that can when having spelled section of jurisdiction real-time measurement, construction is instructed.
Detailed description of the invention
Fig. 1 is the main view sectional view of the utility model.
Fig. 2 is the rear pseudosection of the utility model.
Fig. 3 is the use state schematic diagram of the laser range finder of the utility model.
Fig. 4 is the use state enlarged drawing of the auxiliary scale of the utility model.
Specific embodiment
Section of jurisdiction as shown in drawings proper circle measuring instrument, provided technical solution is as follows, includes the pedestal for being close to section of jurisdiction
1, the laser range finder 3 on pedestal 1 is set, and 1 top of pedestal is symmetrically opened up there are two card slot 2, and the setting of laser range finder 3 exists
In card slot 2.
The bottom of pedestal 1 is matched with section of jurisdiction inner wall, and shape is determined by section of jurisdiction inner wall, and is fitted on the inner wall of section of jurisdiction.
The reverse extending wire clamp angle of 3 central axes of laser range finder is 90 degree, laser range finder 3 and half by base center
Diameter angle is 45 °.
1 bottom of pedestal offers lower accommodation groove 4, and that slides in lower accommodation groove 4 is provided with auxiliary scale 5, the setting of 1 side of pedestal
Fixing bolt 6 be inserted into lower accommodation groove 4 and fixed auxiliary scale 5.
Laser range finder is mounted in the card slot of pedestal first, is first selected on section of jurisdiction a bit, by base center when measurement
It is directed at this point, adjustment pedestal makes it be bonded completely with section of jurisdiction and (ensure middle part and two sides tight), it is ensured that surveyed length is half
In diameter plane, carries out ranging and record；Obtain two mutually perpendicular line segments by measuring twice, by calculate you can get it this
The ovality at place.
Data processing: measuring result twice is respectively a, b, then measuring section of jurisdiction ovality herein isAs a result be second of corresponding direction of canonical it is long axis, otherwise is short axle.
Secondly, pedestal half is bonded with higher side section of jurisdiction, auxiliary scale is directed at another block of pipe when measurement section of jurisdiction faulting of slab ends
Piece stretches out auxiliary scale and resists lower section of jurisdiction, while with the stuck auxiliary scale of fixing bolt, taking out reading.
Claims (4)
1. section of jurisdiction proper circle measuring instrument, which is characterized in that include the laser of the pedestal (1) for being close to section of jurisdiction, setting on pedestal (1)
Rangefinder (3), pedestal (1) top are symmetrically opened up there are two card slot (2), and laser range finder (3) setting is interior in card slot (2).
2. proper circle measuring instrument in section of jurisdiction as described in claim 1, which is characterized in that the bottom of pedestal (1) and section of jurisdiction inner wall match
It closes, and is fitted on the inner wall of section of jurisdiction.
3. proper circle measuring instrument in section of jurisdiction as claimed in claim 2, which is characterized in that reversely prolong laser range finder (3) central axes
Long wire clamp angle is 90 degree, and laser range finder (3) is 45 ° with the radius angle Jing Guo base center.
4. proper circle measuring instrument in section of jurisdiction as claimed in claim 3, which is characterized in that pedestal (1) bottom offers lower accommodation groove
(4), that slides in lower accommodation groove (4) is provided with auxiliary scale (5), and the fixing bolt (6) of pedestal (1) side setting is inserted into lower appearance
It sets in slot (4) and fixed auxiliary scale (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920055544.6U CN209557008U (en) | 2019-01-14 | 2019-01-14 | Section of jurisdiction proper circle measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920055544.6U CN209557008U (en) | 2019-01-14 | 2019-01-14 | Section of jurisdiction proper circle measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209557008U true CN209557008U (en) | 2019-10-29 |
Family
ID=68306130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920055544.6U Active CN209557008U (en) | 2019-01-14 | 2019-01-14 | Section of jurisdiction proper circle measuring instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN209557008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161614A (en) * | 2020-09-27 | 2021-01-01 | 中建筑港集团有限公司 | Shield segment attitude measurement method based on three-dimensional laser scanning technology |
-
2019
- 2019-01-14 CN CN201920055544.6U patent/CN209557008U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161614A (en) * | 2020-09-27 | 2021-01-01 | 中建筑港集团有限公司 | Shield segment attitude measurement method based on three-dimensional laser scanning technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220411 Address after: 200000 No. 1, Fenghe Road, pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: China Construction port and Waterway Bureau Group Co.,Ltd. Address before: No.68, Jiading Road, Shibei District, Qingdao, Shandong Province Patentee before: CHINA STATE CONSTRUCTION PORT ENGINEERING GROUP Co.,Ltd. |