CN216277873U - Accurate positioner in tunnel face big gun hole - Google Patents
Accurate positioner in tunnel face big gun hole Download PDFInfo
- Publication number
- CN216277873U CN216277873U CN202121947092.6U CN202121947092U CN216277873U CN 216277873 U CN216277873 U CN 216277873U CN 202121947092 U CN202121947092 U CN 202121947092U CN 216277873 U CN216277873 U CN 216277873U
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- cylinder body
- cylinder
- hole
- tunnel
- tunnel face
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Abstract
The utility model relates to the technical field of mountain drilling and blasting construction, in particular to a device for accurately positioning blast holes on tunnel faces. The device comprises a first working component and a second working component; the first working assembly comprises a first cylinder body, a light source and a glass sheet; the second working assembly comprises a second cylinder, a spiral track and a convex lens. The utility model has convenient installation and disassembly and simple operation, can change the object distance according to the specific tunnel condition by rotating the convex lens, adjust the size and the definition of the imaging, change the imaging position by matching with the adjustment of the station position of a user and the inclination angle of the device, does not need to use experience to deduce the distribution of individual blast holes, and effectively improves the precision and the efficiency of hole distribution.
Description
Technical Field
The utility model relates to the technical field of mountain drilling and blasting construction, in particular to a device for accurately positioning blast holes on tunnel faces.
Background
When the tunnel face blast hole positioning is carried out by adopting a conventional method in the domestic great mountainous tunnel excavation blasting, the problems of random blast hole arrangement and large deviation exist, the traditional mode of blast hole positioning is to loft a plurality of key peripheral holes by using a total station, then, site workers arrange hole positions such as cut holes, collapse holes and the like according to past experience, and the blasting parameter difference in the design scheme is large, the blasting effect is poor, the reference rate is low, and the over-short excavation phenomenon is serious. Therefore, in order to improve the accuracy and efficiency of hole distribution, the research and development of the test device for accurately positioning the blast hole has great engineering significance.
SUMMERY OF THE UTILITY MODEL
To solve the problems in the prior art, the device for accurately positioning the blast holes on the tunnel face of the tunnel is provided. The utility model has convenient installation and disassembly and simple operation, can change the object distance according to the specific tunnel condition by rotating the convex lens, adjust the size and the definition of the imaging, change the imaging position by matching with the adjustment of the station position of a user and the inclination angle of the device, does not need to use experience to deduce the distribution of individual blast holes, and effectively improves the precision and the efficiency of hole distribution.
The utility model provides a tunnel face blast hole accurate positioning device, which comprises a first working assembly and a second working assembly; the first working assembly comprises a first cylinder body, a light source and a glass sheet; the upper end of the first cylinder body is closed, and the lower end of the first cylinder body is opened; the light source is arranged at the upper end of the cylinder body; the glass sheet is arranged at the lower end of the first cylinder body; the second working assembly comprises a second cylinder, a spiral track and a convex lens; the upper end of the cylinder body II is provided with a first through hole opposite to the position of the glass sheet, and the lower end of the cylinder body II is provided with a second through hole; the spiral track is arranged on the inner wall of the cylinder II and is positioned between the through hole I and the through hole II; the convex lens is in threaded connection with the spiral track.
Preferably, a handle is arranged on the outer wall of the second cylinder body.
Preferably, the thickness of the cylinder I is smaller than that of the cylinder II.
Preferably, a connecting piece is arranged on the connecting surface of the first cylinder and the second cylinder.
Preferably, the glass sheet is connected with the lower end opening of the first cylinder in a clamping mode.
Compared with the prior art, the utility model has the following beneficial technical effects:
the utility model has convenient installation and disassembly and simple operation, can change the object distance according to the specific tunnel condition by rotating the convex lens, adjust the size and the definition of the imaging, change the imaging position by matching with the adjustment of the station position of a user and the inclination angle of the device, does not need to use experience to deduce the distribution of individual blast holes, and effectively improves the precision and the efficiency of hole distribution.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
reference numerals: 1. a light source; 2. a glass sheet; 3. a handle; 4. a spiral track; 5. a second working assembly; 6. a convex lens; 7. and a first working component.
Detailed Description
As shown in fig. 1, the device for accurately positioning the blast hole on the tunnel face of the tunnel provided by the utility model comprises a first working assembly 7 and a second working assembly 5; the working assembly I7 comprises a cylinder I, a light source 1 and a glass sheet 2; the upper end of the first cylinder body is closed, and the lower end of the first cylinder body is opened; the light source 1 is arranged at the upper end of the cylinder body; the glass sheet 2 is arranged at the lower end of the first cylinder body; the second working assembly 5 comprises a second cylinder, a spiral track 4 and a convex lens 6; the upper end of the cylinder body II is provided with a first through hole opposite to the position of the glass sheet 2, and the lower end of the cylinder body II is provided with a second through hole; the spiral track 4 is arranged on the inner wall of the cylinder II and is positioned between the first through hole and the second through hole; the convex lens 6 is screwed to the spiral track 4.
Further, a handle 3 is arranged on the outer wall of the second cylinder body.
Further, the thickness of the first cylinder body is smaller than that of the second cylinder body.
Furthermore, a connecting piece is arranged on the connecting surface of the first cylinder body and the second cylinder body.
Furthermore, the glass sheet 2 is connected with the lower end opening of the first cylinder in a clamping manner.
The working principle of the utility model is as follows: and preparing a blast hole position diagram of the tunnel face in advance. And sticking the picture paper on one side of the glass sheet 2 facing the second cylinder. And connecting and installing the first cylinder body and the second cylinder body. The light source 1 is turned on and the handle 3 is held. The instrument is adjusted so that the normal direction of the convex lens 6 is parallel to the normal direction of the tunnel face. The convex lens 6 is rotated on the spiral track 4, the convex lens 6 moves up and down, the distance between the glass sheet 2 and the convex lens 6, namely the object distance, is adjusted, and a blast hole positioning picture forms a clear image on the tunnel face. And (5) marking points at the shot hole imaging position on the tunnel face by a worker.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (5)
1. A device for accurately positioning blast holes on tunnel face is characterized by comprising a first working assembly (7) and a second working assembly (5); the first working assembly (7) comprises a first cylinder body, a light source (1) and a glass sheet (2); the upper end of the first cylinder body is closed, and the lower end of the first cylinder body is opened; the light source (1) is arranged at the upper end of the cylinder body; the glass sheet (2) is arranged at the lower end of the first cylinder body; the second working component (5) comprises a second cylinder body, a spiral track (4) and a convex lens (6); the upper end of the cylinder body II is provided with a first through hole opposite to the glass sheet (2), and the lower end of the cylinder body II is provided with a second through hole; the spiral track (4) is arranged on the inner wall of the cylinder body II and is positioned between the through hole I and the through hole II; the convex lens (6) is in threaded connection with the spiral track (4).
2. The device for accurately positioning the blast hole on the tunnel face of the tunnel according to claim 1, wherein a handle (3) is arranged on the outer wall of the second cylinder body.
3. The device for accurately positioning the blast hole on the tunnel face of the tunnel as claimed in claim 1, wherein the thickness of the first cylinder is smaller than that of the second cylinder.
4. The device for accurately positioning the blast hole on the tunnel face of the tunnel as claimed in claim 1, wherein a connecting piece is arranged on the connecting surface of the first cylinder and the second cylinder.
5. The device for accurately positioning the blast hole on the tunnel face of the tunnel according to claim 1, wherein the glass sheet (2) is connected with the lower end opening of the first cylinder in a clamping manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121947092.6U CN216277873U (en) | 2021-08-19 | 2021-08-19 | Accurate positioner in tunnel face big gun hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121947092.6U CN216277873U (en) | 2021-08-19 | 2021-08-19 | Accurate positioner in tunnel face big gun hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216277873U true CN216277873U (en) | 2022-04-12 |
Family
ID=81061692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121947092.6U Expired - Fee Related CN216277873U (en) | 2021-08-19 | 2021-08-19 | Accurate positioner in tunnel face big gun hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216277873U (en) |
-
2021
- 2021-08-19 CN CN202121947092.6U patent/CN216277873U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220412 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |