CN204705354U - Permanent point is laid in a kind of underground coal mine measurement - Google Patents
Permanent point is laid in a kind of underground coal mine measurement Download PDFInfo
- Publication number
- CN204705354U CN204705354U CN201520423113.2U CN201520423113U CN204705354U CN 204705354 U CN204705354 U CN 204705354U CN 201520423113 U CN201520423113 U CN 201520423113U CN 204705354 U CN204705354 U CN 204705354U
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- Prior art keywords
- coal mine
- laid
- underground coal
- permanent
- point
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Abstract
Permanent point is laid in the underground coal mine measurement that the utility model provides, and comprise copper stake, bifurcated is cut in one end of copper stake, and the other end then welds a nut, has the hole for fastening line bottom nut.Permanent measurement point of the present utility model makes simple, and draw materials conveniently, method for embedding is reasonable, and not easily corrosion.
Description
Technical field
The utility model relates to underground coal mine field of measuring technique, particularly relates to
oneplant underground coal mine measurement and lay permanent measuring point.
Background technology
Coal mine survey is normally produced for the excavation in tunnel, the through of mine and coal and is ensured that the life security of staff all has great importance, and is called as " eyes " of coal production.The developing measurement of coal mine roadway provides construction center and stringcourse, and surveying setting-out has very important effect to guarantee and raising construction quality.So the preservation of measuring permanent reference mark is extremely important, the measurement point in complicated tunnel is often easily unstable or destroyed, delays construction speed.The time length that in unstable tunnel, measurement point is preserved directly has influence on construction speed and quality.Underground survey point is the basic facilities that roadway opening is measured, and measurement point is embedded in back more.Due to the moist many water in down-hole, and have acidity effect, use iron sticks up easily rotten tactile raw embroidery; Use survey nail bury underground very shallow, because of tunnel decoration and repair easily wreck, not easily preserve, do not have the effect of permanent measurement point.Once measurement point damages, will take the production time buries point observation again, can bring impact to coal production.Meanwhile, because shaft building project is in mountain area and desert mostly, make and buy permanent stake point inconvenient.
Utility model content
The technical problems to be solved in the utility model is that providing a kind of makes simple, the permanent measuring point of underground coal mine measurement easily of drawing materials laying, to solve prior art Problems existing.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
Permanent point is laid in a kind of underground coal mine measurement, and comprise copper stake, bifurcated is cut in one end of copper stake, and the other end then welds a nut, has the hole for fastening line bottom nut.
Chromium plating on described nut outside surface.
The interior diameter of described nut is 15mm, and the diameter range of described copper stake is 18mm ~ 20mm.
The length of described copper stake is 300mm.
Permanent measurement point of the present utility model makes simple, and draw materials conveniently, method for embedding is reasonable, and not easily corrosion.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Fig. 2 is side view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing 1 ~ 2 and embodiment, the utility model is described in further detail.
Consult shown in Fig. 1 and Fig. 2, the utility model provides a kind of underground coal mine measurement to lay permanent point, comprise copper stake 1, bifurcated 2 is cut in one end of copper stake, bifurcated 2 can make the rock mass of copper stake and surrounding better be fixed together, the other end then welds a nut 3, has the hole 4 for fastening line bottom nut.Chromium plating on nut 3 outside surface, can prevent corrosion.
In the embodiment of majority, the interior diameter selecting nut 3 is 15mm, and the diameter range selecting copper stake 1 is 18mm ~ 20mm.The length selecting copper stake 1 is about 300mm.
Permanent measurement point of the present utility model makes simple, and draw materials conveniently, method for embedding is reasonable, and not easily corrosion.Not easily buy and the mountain area in effect hotel and desert can very easily according to the firmly permanent point of tool making on hand.
Claims (4)
1. a permanent point is laid in underground coal mine measurement, and comprise copper stake (1), it is characterized in that: bifurcated (2) is cut in one end of copper stake (1), the other end then welds a nut (3), and nut (3) bottom has the hole (4) for fastening line.
2. permanent point is laid in underground coal mine measurement according to claim 1, it is characterized in that: chromium plating on described nut (3) outside surface.
3. permanent point is laid in underground coal mine measurement according to claim 1, and it is characterized in that: the interior diameter of described nut (3) is 15mm, the diameter range of described copper stake (1) is 18mm ~ 20mm.
4. permanent point is laid in underground coal mine measurement according to claim 1, it is characterized in that: the length of described copper stake (1) is 300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520423113.2U CN204705354U (en) | 2015-06-18 | 2015-06-18 | Permanent point is laid in a kind of underground coal mine measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520423113.2U CN204705354U (en) | 2015-06-18 | 2015-06-18 | Permanent point is laid in a kind of underground coal mine measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204705354U true CN204705354U (en) | 2015-10-14 |
Family
ID=54284959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520423113.2U Expired - Fee Related CN204705354U (en) | 2015-06-18 | 2015-06-18 | Permanent point is laid in a kind of underground coal mine measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204705354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720537A (en) * | 2016-04-20 | 2016-06-29 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Copper-iron anchor type wire fixing nail |
-
2015
- 2015-06-18 CN CN201520423113.2U patent/CN204705354U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720537A (en) * | 2016-04-20 | 2016-06-29 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Copper-iron anchor type wire fixing nail |
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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 |
Granted publication date: 20151014 Termination date: 20180618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |