CN203455000U - 360-degree leveling-free forced centering sighting device - Google Patents
360-degree leveling-free forced centering sighting device Download PDFInfo
- Publication number
- CN203455000U CN203455000U CN201320473403.9U CN201320473403U CN203455000U CN 203455000 U CN203455000 U CN 203455000U CN 201320473403 U CN201320473403 U CN 201320473403U CN 203455000 U CN203455000 U CN 203455000U
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- CN
- China
- Prior art keywords
- forced centering
- centering
- guide pole
- forced
- sighting device
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- Expired - Fee Related
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Abstract
The utility model relates to a forced centering sighting device used as a sign of a monitoring point in a deformation monitoring field. The forced centering sighting device comprises a centering bolt, a forced centering tube, a guide pole and a small prism, wherein the centering bolt is fixed in a monitoring body, the forced centering tube and the centering bolt are in screwed connection through internal threads, the guide pole and the lower end of the small prism are in screwed connection through threads, the guide pole is directly inserted into the forced centering tube so as to concentrically rotate in the forced centering tube without swinging. The forced centering sighting device has the technical effects that repeated centering with high precision and 360-degree rotation can be carried out, assembling and disassembling can be convenient, working efficiency is high, the monitoring point is easy to protect and difficult to damage, and the monitoring point is rapidly repaired even if the monitoring point is damaged.
Description
Technical field
The utility model relate to a kind of in deformation monitoring field particularly in horizontal displacement monitoring 360 degree as monitoring point sign exempt from leveling forced centering sighting means.
Technical background
Horizontal displacement monitoring is as the traditional monitoring project in deformation monitoring, because it can directly measure the deflection of monitoring body, always being subject to each side pays close attention to, tradition horizontal displacement monitoring point is mainly the nail of top band " ten " word, if employing angle-measuring method, sighting target is survey pin, this method is subject to site condition restriction to use limited, if adopt total station instrument coordinate method, need each centering leveling prism as sighting target, this sighting target operating efficiency is low, and accuracy of alignment is also low, but this method place is adaptable, use at present more extensive.At present along with the use of full-automatic total powerstation (robot measurement), the monitoring of high-accuracy high-efficiency rate becomes a reality, in engineering practice, there is again a problem in this method, the prism being fixed on monitoring body can only be aimed at a direction, and this allows selects the position of setting up instrument to be limited to, and construction site personnel are complicated, quality just differs, be fixed on that the prism of monitoring on body lost without reason and the phenomenon destroyed is serious, and prism is more expensive equipment, cost increases greatly virtually.
Summary of the invention
Based on above these situations, can high precision repeat centering, dismounting and installation are all very convenient, and can arise at the historic moment by 360 sighting means of spending rotation, concrete technical scheme is, a kind of 360 degree are exempted from leveling forced centering sighting means, comprise centring screw bolt, forced centering pipe, guide pole, little prism, it is characterized in that: the pipe of described forced centering pipe racks internal thread screw thread, centring screw bolt is fixed in monitoring body, forced centering pipe and centring screw bolt adopt internal thread screwed connection, guide pole is connected with little prism lower end screw thread, guide pole directly inserts in forced centering pipe, guide pole can be rotated with one heart in forced centering pipe and do not rock.
Technique effect of the present utility model is high precision to repeat centering and can rotate by 360 degree, and dismounting and installation are all very convenient, and operating efficiency is high, and monitoring point is easily protected, survivable, also can fast repairing dress even if destroy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, on monitoring body, with the punching of the instrument such as electric drill, using the single ended bolt of M12 or with the expand tube bolt of M12 bolt, as centring screw bolt 1, be installed on monitoring body and fixing, monitoring body 1 ~ 2cm is exposed at centring screw bolt 1 top, it is that the weldless steel tube of M12 is as forced centering pipe 2 that Precision Machining goes out internal thread, forced centering pipe 2 is threaded with centring screw bolt 1, tightness degree is for mounting and dismounting with hand, after installing first, on forced centering pipe 2 and monitoring body, setting-out serves as a mark, all allow mark aim at later at every turn, guaranteed that forced centering pipe 2 all can accurately be installed to same position at every turn, little prism 4 models can be the little prism of come card GMP111 or the little prism group of imitative come card, the straight Metallic rod that guide pole 3 is TOE, thread size and little prism 4 lower end threaded holes are measure-alike, it is identical that straight Metallic rod diameter and centering are managed 2 internal diameters, during use, only guide pole 3 and little prism 4 need be screwed together, guide pole 3 on little prism 4 inserts in forced centering pipe 2, forced centering pipe 2 is threaded onto mark with centring screw bolt 1.
Claims (1)
1. a degree is exempted from leveling forced centering sighting means, comprise centring screw bolt (1), forced centering pipe (2), guide pole (3), little prism (4), it is characterized in that: described forced centering pipe (2) is with the pipe of internal thread screw thread, centring screw bolt (1) is fixed in monitoring body, forced centering pipe (2) adopts internal thread screwed connection with centring screw bolt (1), guide pole (3) is connected with little prism (4) lower end screw thread, guide pole (3) directly inserts in forced centering pipe (2), guide pole (3) can be rotated with one heart in forced centering pipe (2) and do not rock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473403.9U CN203455000U (en) | 2013-08-05 | 2013-08-05 | 360-degree leveling-free forced centering sighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473403.9U CN203455000U (en) | 2013-08-05 | 2013-08-05 | 360-degree leveling-free forced centering sighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203455000U true CN203455000U (en) | 2014-02-26 |
Family
ID=50134867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320473403.9U Expired - Fee Related CN203455000U (en) | 2013-08-05 | 2013-08-05 | 360-degree leveling-free forced centering sighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203455000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389082A (en) * | 2013-08-05 | 2013-11-13 | 天津市地质工程勘察院 | 360-degree free-of-leveling forced centering collimation equipment and using method thereof |
-
2013
- 2013-08-05 CN CN201320473403.9U patent/CN203455000U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389082A (en) * | 2013-08-05 | 2013-11-13 | 天津市地质工程勘察院 | 360-degree free-of-leveling forced centering collimation equipment and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20210805 |