CN204532329U - Borehole accuracy precise control device - Google Patents
Borehole accuracy precise control device Download PDFInfo
- Publication number
- CN204532329U CN204532329U CN201520240573.1U CN201520240573U CN204532329U CN 204532329 U CN204532329 U CN 204532329U CN 201520240573 U CN201520240573 U CN 201520240573U CN 204532329 U CN204532329 U CN 204532329U
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- pipe
- centering
- guide pipe
- control device
- precise control
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Abstract
A kind of borehole accuracy precise control device, this device comprises the guide pipe be fixedly mounted on by tube connector on support; Guide pipe one end is socketed with the first centering pipe, and the guide pipe other end is socketed with the second centering pipe, and borer drill rod runs through the first centering pipe and the second centering pipe; First centering pipe and the socket end of guide pipe are provided with one group of symmetrical spacing ring.The borehole accuracy precise control device that the utility model provides, when can overcome bore operation, drill pipe wobbling amplitude is comparatively large, the problem that pore-forming accuracy is lower; It is simple that processing and fabricating is set, easy to use, very effective to raising borehole accuracy.
Description
Technical field
The utility model relates to a kind of precise control device, borehole accuracy precise control device in especially a kind of smooth blasting.
Background technology
In earth and rock works, for some key positions, for ensureing Forming Quality and reducing explosion impact, designing requirement adopts the mode of smooth controlled blasting to construct, the rock anchorage beam of such as underground powerhouse project.For improving borehole accuracy, general employing sets up steel tube drilling sample frame or support auxiliary construction, but during bore operation, drill pipe wobbling amplitude is comparatively large, and pore-forming accuracy is difficult to meet the demands, thus impact excavation Forming Quality.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of borehole accuracy precise control device, and when can overcome bore operation, drill pipe wobbling amplitude is comparatively large, the problem that pore-forming accuracy is lower; It is simple that processing and fabricating is set, easy to use, very effective to raising borehole accuracy.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of borehole accuracy precise control device,
This device comprises the guide pipe be fixedly mounted on by tube connector on support;
Guide pipe one end is socketed with the first centering pipe, and the guide pipe other end is socketed with the second centering pipe, and borer drill rod runs through the first centering pipe and the second centering pipe;
First centering pipe and the socket end of guide pipe are provided with one group of symmetrical spacing ring.
First centering pipe is identical with the caliber of the second centering pipe, and its external diameter is slightly less than the internal diameter of guide pipe, and its internal diameter is slightly larger than the external diameter of borer drill rod.
The borehole accuracy precise control device that the utility model provides, managed by guide pipe and the first centering and the close fit effect of the second centering pipe, the amplitude of drill pipe wobbling can be reduced, keyhole precision, thus ensure smooth blasting Forming Quality, very effective to raising borehole accuracy.Be particularly useful for thin portion's structure in stonework or the higher key position smooth blasting drilling construction of quality requirement.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of the utility model guide pipe;
Fig. 3 is the utility model first centering pipe schematic diagram;
Fig. 4 is that the A-A of the utility model Fig. 3 is to sectional view;
Fig. 5 is the utility model first centering pipe schematic diagram;
Fig. 6 is the working state schematic representation that employing the utility model is drilled with the smooth blasting boring that has a down dip;
Fig. 7 is the working state schematic representation adopting the utility model to be drilled with updip smooth blasting boring.
Detailed description of the invention
As Figure 1-Figure 5, a kind of borehole accuracy precise control device,
This device comprises the guide pipe 1 be fixedly mounted on by tube connector 6 on support 5;
Guide pipe 1 one end is socketed with the first centering pipe 2, and guide pipe 1 other end is socketed with the second centering pipe 3, and borer drill rod 7 runs through the first centering pipe 2 and the second centering pipe 3;
First centering pipe 2 and the socket end of guide pipe 1 are provided with one group of symmetrical spacing ring 4, act on as follows:
1, the first centering pipe 2 is prevented when carrying out having a down dip boring with boring landing to bottom;
2, carrying out conveniently fixing the unlikely downslide of the first centering pipe 2 when facing upward boring, making it remain in guide pipe 1, playing centering effect, thus ensureing borehole accuracy.
First centering pipe 2 is identical with the caliber of the second centering pipe 3, and its external diameter is slightly less than the internal diameter of guide pipe 1, and its internal diameter, slightly larger than the external diameter of borer drill rod 7, reduces the gap between drilling rod 7 and centering pipe, improves borehole accuracy.
Support 5 preferably adopts steel pipe framed bent make or set up at operation field, and steel pipe selects diameter general on market to be the scaffolding steel pipe of 48mm.
Tube connector 6 and guide pipe 1 preferably diameter are the steel pipe of 48mm, are convenient to adopt personality card fastener to be connected and fixed with support 5.
Embodiment 1:
As shown in Figure 6, have a down dip smooth blasting bore operation, is fixed on support 5 by guide pipe 1 by tube connector 6, and carry out angular measurement check; First centering pipe 2 and the second centering pipe 3 are inserted in borer drill rod 7 successively; Drilling rod 7 is penetrated guide pipe 1, and rod bit supports to bedrock surface, and now the first centering pipe 2 and the second centering pipe 3 are conducted oneself with dignity landing voluntarily, and the second centering pipe 3 is in guide pipe 1 bottom, and the first centering pipe 2 limits by spacing ring 4 and is in guide pipe 1 top; Open rig and carry out bore operation.
Embodiment 2:
As shown in Figure 7, smooth blasting bore operation of facing upward, is fixed on guide pipe 1 on support 5 by tube connector 6, and carries out angular measurement check; First centering pipe 2 is inserted in borer drill rod 7; Drilling rod 7 is penetrated guide pipe 1, and rod bit supports to bedrock surface, and utilizes iron wire or rope will be fixed the first centering pipe 2 and support 5 oblique pull by spacing ring 4, prevents the first centering pipe 2 to be conducted oneself with dignity landing voluntarily; Open rig and carry out bore operation.
Claims (2)
1. a borehole accuracy precise control device, is characterized in that:
This device comprises the guide pipe (1) be fixedly mounted on by tube connector (6) on support (5);
Guide pipe (1) one end is socketed with the first centering pipe (2), and guide pipe (1) other end is socketed with the second centering pipe (3), and borer drill rod (7) runs through the first centering pipe (2) and the second centering pipe (3);
First centering pipe (2) and the socket end of guide pipe (1) are provided with one group of symmetrical spacing ring (4).
2. borehole accuracy precise control device according to claim 1, it is characterized in that: the first centering pipe (2) is identical with the caliber that the second centering manages (3), its external diameter is slightly less than the internal diameter of guide pipe (1), and its internal diameter is slightly larger than the external diameter of borer drill rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520240573.1U CN204532329U (en) | 2015-04-21 | 2015-04-21 | Borehole accuracy precise control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520240573.1U CN204532329U (en) | 2015-04-21 | 2015-04-21 | Borehole accuracy precise control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204532329U true CN204532329U (en) | 2015-08-05 |
Family
ID=53746351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520240573.1U Active CN204532329U (en) | 2015-04-21 | 2015-04-21 | Borehole accuracy precise control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204532329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561080A (en) * | 2018-06-15 | 2018-09-21 | 中铁四局集团有限公司 | A kind of stone matter tunneltron canopy flatness control device and control method |
| CN108590537A (en) * | 2018-04-26 | 2018-09-28 | 中国水利水电第四工程局有限公司 | The quick-fried borehole accuracy of light controls fixed structure |
-
2015
- 2015-04-21 CN CN201520240573.1U patent/CN204532329U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590537A (en) * | 2018-04-26 | 2018-09-28 | 中国水利水电第四工程局有限公司 | The quick-fried borehole accuracy of light controls fixed structure |
| CN108561080A (en) * | 2018-06-15 | 2018-09-21 | 中铁四局集团有限公司 | A kind of stone matter tunneltron canopy flatness control device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |