CN201363139Y - Major-diameter hole deflection measurement centering device - Google Patents
Major-diameter hole deflection measurement centering device Download PDFInfo
- Publication number
- CN201363139Y CN201363139Y CNU2009200328951U CN200920032895U CN201363139Y CN 201363139 Y CN201363139 Y CN 201363139Y CN U2009200328951 U CNU2009200328951 U CN U2009200328951U CN 200920032895 U CN200920032895 U CN 200920032895U CN 201363139 Y CN201363139 Y CN 201363139Y
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- CN
- China
- Prior art keywords
- reed
- screw nut
- connecting screw
- screw rod
- nut
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- Expired - Lifetime
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a major-diameter hole deflection measurement centering device. The centering device comprises a vertically-arranged central connecting screw rod; a rope connecting screw cap, a reed adjusting screw nut, a reed-upper-end fixing screw nut and a reed positioning screw nut are mounted at the upper end of the central connecting screw rod in sequence from top to bottom; a drop ball and a reed-lower-end fixing screw nut are mounted at the lower end of the central connecting screw rod in sequence from bottom to top; an upper hinged support and a lower hinged support are arranged at the periphery of the reed-upper-end fixing screw nut and the reed-lower-end fixing screw nut respectively; a reed upper joint and a reed lower joint are arranged on the upper hinged support and the lower hinged support respectively; and a spring leaf is arranged between the reed upper joint and the reed lower joint. The utility model is suitable for drilling large-diameter and high-precision reversed pendent holes and measuring hole deflection for large dam safety monitoring, can improve the measurement accuracy, and also can provide accurate reference for framing rectification measures in the hole drilling construction process.
Description
Technical field
The utility model relates to a kind of engineering survey device, is specifically related to the measurement of a kind of major diameter hole deviation and puts middle device.
Background technology
The inverted vertical hole that is used for the Hydraulic and Hydro-Power Engineering dam safety monitoring, the aperture is big, to hole scattering required precision height, carry out the real-time and effective measurement owing to lack suitable survey tool, therefore in the inverted vertical hole construction, cause the accident of scrapping the hole to happen occasionally because of deviation proportion is excessive.
The utility model content
The purpose of this utility model is at above-mentioned the deficiencies in the prior art, provides a kind of stable work in work, on-the-spot major diameter hole deviation measurement easy to use, that can improve and guarantee certainty of measurement to put middle device.
For achieving the above object, the technical scheme that the utility model adopted is: middle device is put in the measurement of a kind of major diameter hole deviation, it is characterized in that: it comprises a center connecting screw rod that vertically is provided with, the upper end of described center connecting screw rod is equipped with the rope coupling nut from top to bottom successively, the reed adjusting nut, reed upper end hold-down nut and reed setscrew nut, the lower end that is positioned at the center connecting screw rod is equipped with drop ball and reed lower end hold-down nut from the bottom to top successively, be respectively arranged with free bearing and following free bearing on the periphery of described reed upper end hold-down nut and reed lower end hold-down nut, be respectively arranged with reed top connection and reed lower contact on last free bearing and the following free bearing, be provided with spring leaf between reed top connection and the reed lower contact.
The utility model compared with prior art has the following advantages:
The utility model is reasonable in design, simple in structure, the boring hole deviation that is not only applicable to dam safety monitoring large aperture high accuracy inverted vertical hole is measured, and can improve the precision of inverted vertical hole deflection measurement, but also can provide foundation accurately for the formulation of satisfactory after correcting in the drilling construction process; It is the measurement of φ 170mm-325mm inverted vertical hole deflection that the utility model is suitable for the aperture, can effectively reduce to produce the risk of scrapping the hole because of the inverted vertical hole deviation proportion is excessive.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
As shown in Figure 1, the utility model comprises a center connecting screw rod 1 that vertically is provided with, the upper end of described center connecting screw rod 1 from top to bottom is equipped with successively and is used to connect the rope coupling nut 2 that suspends rope in midair, reed adjusting nut 3, reed upper end hold-down nut 4 and reed setscrew nut 5, the lower end that is positioned at center connecting screw rod 1 is equipped with drop ball 6 and reed lower end hold-down nut 7 from the bottom to top successively, on the periphery of described reed upper end hold-down nut 4 and reed lower end hold-down nut 7 respectively equipotential be provided with identical last free bearing of quantity 8 and following free bearing 9, be respectively arranged with a reed top connection 10 and reed lower contact 11 on free bearing 8 and the following free bearing 9 on each, be provided with a profile between per two reed top connections 10 that are oppositely arranged up and down and the reed lower contact 11 and be banded spring leaf 12.
Reed top connection 10 and reed lower contact 11 are rotationally connected with last free bearing 8 and following free bearing 9 respectively by bearing pin 13.
Rivet with reed top connection 10 and reed lower contact 11 respectively at the two ends of spring leaf 12.
The utility model course of work is as follows:
A. device couples together by rope coupling nut 2 and finer wire and the deviational survey reading scale device that is arranged on the aperture at first the utility model being put;
B. according to the diameter of institute's gaging hole, up-down adjustment reed adjusting nut 3, reed upper end hold-down nut 4 and the position of reed setscrew nut 5 on center connecting screw rod 1, the external diameter that makes spring leaf 12 outwardly-bent formation is identical with the diameter of institute's gaging hole; When reed adjusting nut 3 was threaded to the extreme higher position, spring leaf 12 was in half releasing orientation, and formed external diameter minimum can be used for the deviational survey that minimum diameter is holed; When reed adjusting nut 3 was threaded to extreme lower position, spring leaf 12 was in the press-bending state, and at this moment formed external diameter maximum can be used for the deviational survey that maximum gauge is holed;
C. device slowly descends projected depth place in the hand-hole in the utility model being put, and the seizing wire of device can calculate offset distance and the deviation proportion that this degree of depth place holes with the station-keeping data that is arranged on the aperture scale in putting according to suspention; In whole drillhole inclination survey process,, thereby reach the purpose of accurate measurement because the position-limiting action of spring leaf 12 guarantees that all the time connecting the measuring steel wire rope of putting middle device does not touch with borehole wall.
Be arranged on the utility model put in the drop ball 6 of device bottom be convenient to put in device vertical center in the hole.
Claims (3)
1, middle device is put in the measurement of a kind of major diameter hole deviation, it is characterized in that: it comprises a center connecting screw rod (1) that vertically is provided with, the upper end of described center connecting screw rod (1) is equipped with rope coupling nut (2) from top to bottom successively, reed adjusting nut (3), reed upper end hold-down nut (4) and reed setscrew nut (5), the lower end that is positioned at center connecting screw rod (1) is equipped with drop ball (6) and reed lower end hold-down nut (7) from the bottom to top successively, be respectively arranged with free bearing (8) and following free bearing (9) on the periphery of described reed upper end hold-down nut (4) and reed lower end hold-down nut (7), be respectively arranged with reed top connection (10) and reed lower contact (11) on last free bearing (8) and the following free bearing (9), be provided with spring leaf (12) between reed top connection (10) and the reed lower contact (11).
2, middle device is put in major diameter hole deviation according to claim 1 measurement, it is characterized in that: described reed top connection (10) and reed lower contact (11) are rotationally connected with last free bearing (8) and following free bearing (9) respectively by bearing pin (13).
3, middle device is put in major diameter hole deviation according to claim 1 and 2 measurement, it is characterized in that: rivet with reed top connection (10) and reed lower contact (11) respectively at the two ends of described spring leaf (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200328951U CN201363139Y (en) | 2009-04-30 | 2009-04-30 | Major-diameter hole deflection measurement centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200328951U CN201363139Y (en) | 2009-04-30 | 2009-04-30 | Major-diameter hole deflection measurement centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363139Y true CN201363139Y (en) | 2009-12-16 |
Family
ID=41473802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200328951U Expired - Lifetime CN201363139Y (en) | 2009-04-30 | 2009-04-30 | Major-diameter hole deflection measurement centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201363139Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806477A (en) * | 2012-11-14 | 2014-05-21 | 兰州大学 | Tester for hole position and slope/wall angle of anchor hole |
-
2009
- 2009-04-30 CN CNU2009200328951U patent/CN201363139Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806477A (en) * | 2012-11-14 | 2014-05-21 | 兰州大学 | Tester for hole position and slope/wall angle of anchor hole |
| CN103806477B (en) * | 2012-11-14 | 2015-08-12 | 兰州大学 | Position, anchor hole hole and slope/wall angle analyzer |
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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 |
Granted publication date: 20091216 |
|
| CX01 | Expiry of patent term |