CN2256464Y - Short screw drilling bit capable of changing into internal screw drilling bit - Google Patents
Short screw drilling bit capable of changing into internal screw drilling bit Download PDFInfo
- Publication number
- CN2256464Y CN2256464Y CN 95222271 CN95222271U CN2256464Y CN 2256464 Y CN2256464 Y CN 2256464Y CN 95222271 CN95222271 CN 95222271 CN 95222271 U CN95222271 U CN 95222271U CN 2256464 Y CN2256464 Y CN 2256464Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- helical blade
- awl
- drilling bit
- transformed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Earth Drilling (AREA)
Abstract
The utility model discloses a short screw drilling bit capable of changing into internal screw drilling bit. The lower part of a center pipeline is provided with a section of awl screw blades. The upper end of the awl screw blade is provided with a detachable sleeve barrel. The screw blades can be extends into the sleeve barrel. The utility model can be suitable for drilling of different strata, the drilling bit is not needed to replace, the labor intensity and engineering cost are reduced, and the work efficiency is enhanced.
Description
The utility model relates to a kind of short augers that is used on the engineering driller.
In the prior art, general rig needs to change different drill bits when creeping into Different Strata, both increased engineering cost, spent the plenty of time again, when the rig drill bit is used in combination with drilling bucket, the coarse fodder that enters in the drilling bucket need utilize artificial taking-up, and labour intensity is big, and efficient is low.
The purpose of this utility model is to provide a kind of one-machine-multi-function, can creep into Different Strata and not need frequently more bit change, the short augers that can be transformed into the inside spin drilling bucket that labour intensity is little and efficient is high.
For achieving the above object, the utility model is taked following technical scheme: a kind of short augers that can be transformed into the inside spin drilling bucket, comprise the hollow centre pipe, be positioned at the awl helical blade of central tube one end, it is characterized in that: the upper end at the awl helical blade is equipped with a removable sleeve, and helical blade extends in the sleeve; Sleeve-shaped can be that straight tube forms introversion shape, and helical blade and sleeve-shaped in the sleeve adapt, promptly blade diameter can be equate with or diminishing; The installation of sleeve is meant that the blade edge at the circumference in upper end of awl helical blade is protruding with the helix lead ring, and sleeve links to each other with the helix lead ring by bolt; Be movably installed with a dismountable non-return flap in sleeve internal helical blades and awl helical blade junction.
The utility model has following advantage and effect:
1, can be suitable for creeping into of Different Strata, be suitable for creeping into of gravel, pebble layer especially, because when creeping into, the fine sand in the crack in loosening gravel, the ovum is washed away in the central tube water filling of hollow, and makes it come-up, and the awl augers more easily creeps in gravel, the pebble layer.
2, when creeping into soft formation, the utility model becomes short augers, does not need more bit change, saves engineering cost and time.
3, the drilling rod counter-rotating can throw away thick slag, need not manually-operated, reduces labour intensity, shortens and takes off the slag time, increases work efficiency.
Fig. 1 is the utility model master pseudosection
Fig. 2 is a vertical view of the present utility model
Among the figure: 1, flange, 2, sleeve, 3, helical blade, 4, bolt, 5, the helix lead ring, 6, central tube, 7, non-return flap, 8, the awl helical blade, 9, cutting tool.
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
The utility model comprises hollow centre pipe 6, be positioned at the awl helical blade 8 of central tube 6 lower ends, on the awl helical blade, cutting tool 9 is housed, upper end at awl helical blade 8 is equipped with a removable sleeve 2, helical blade 3 extends in the sleeve 2, sleeve 2 can be straight tubular, also introversion shape, the shape of the blade diameter of helical blade 3 and sleeve 2 adapts, when sleeve 2 is straight tubular, blade diameter equates that when sleeve 2 was introversion shape, blade diameter dwindled from the bottom to top, the blade edge vertical vane of a circumference in the upper end of awl helical blade 8 is protruding with helix lead ring 5, and sleeve 2 links to each other with helix lead ring 5 by lock bolt 4.Joint portion at awl helical blade and helical blade is hinged with a dismountable non-return flap 7, and when creeping into, thick slag rises with awl helical blade 8 and extrudes out non-return flap 7, enters sleeve 2, and non-return flap 7 is closed thick slag is fallen during lifting.Outside drill bit rises to well, unclamp the connecting bolt 4 of sleeve 2 and helix lead ring 5, sleeve 2 can promote and break away from helical blade 3, and the drilling rod counter-rotating can get rid of thick slag to vehicle.
Sleeve 2 can be installed by two semicircular cylinders, and sleeve 2 assembles also in protection domain of the present utility model with other form.
The utility model is suitable to creep into the different stratum of soft or hard, does not need frequently more bit change in the work, and when boring hard formation, the utility model is the inside spin drilling bucket, and when meeting soft formation, the sleeve of dismantling just becomes short augers.Deslagging does not need a large amount of artificial, has reduced labour intensity, has improved operating efficiency, has reduced engineering cost.
Claims (4)
1, a kind of short augers that can be transformed into the inside spin drilling bucket comprises the hollow centre pipe, is positioned at the awl spiral shell blade of central tube lower end, it is characterized in that: on awl helical blade top one removable sleeve is installed, helical blade extends in the sleeve.
2, the short augers that can be transformed into the inside spin drilling bucket according to claim 1, it is characterized in that sleeve can be straight tubular or introversion shape, the diameter that extends to the helical blade in the sleeve adapts with it, promptly is that equal diameter or diameter diminish from the bottom to top gradually.
3, the short augers that can be transformed into the inside spin drilling bucket according to claim 1, the installation that it is characterized in that sleeve is meant that the blade edge vertical vane of a circumference on the awl helical blade has the helix lead ring of protrusion, and sleeve flexibly connects by bolt and helix lead ring.
4, the short augers that can be transformed into the inside spin drilling bucket according to claim 2 is characterized in that being movably installed with a detachable non-return flap in sleeve internal helical blades and awl helical blade junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95222271 CN2256464Y (en) | 1995-09-08 | 1995-09-08 | Short screw drilling bit capable of changing into internal screw drilling bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95222271 CN2256464Y (en) | 1995-09-08 | 1995-09-08 | Short screw drilling bit capable of changing into internal screw drilling bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2256464Y true CN2256464Y (en) | 1997-06-18 |
Family
ID=33869640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95222271 Expired - Fee Related CN2256464Y (en) | 1995-09-08 | 1995-09-08 | Short screw drilling bit capable of changing into internal screw drilling bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2256464Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081281C (en) * | 1998-09-02 | 2002-03-20 | 王培林 | Drill bit |
| CN101821068B (en) * | 2007-11-06 | 2013-05-29 | 罗伯特·博世有限公司 | Auger bit including reamer and manufacture method thereof |
| EP2696027A1 (en) * | 2012-08-06 | 2014-02-12 | Bauer Spezialtiefbau GmbH | Drilling bucket and method for drilling a bore hole |
| CN110318682A (en) * | 2019-08-07 | 2019-10-11 | 上海城地建设股份有限公司 | A kind of augers automatic opening-closing and its application method |
| CN111155936A (en) * | 2018-11-08 | 2020-05-15 | 上海城地建设股份有限公司 | Automatic check device for spiral drill bit and using method thereof |
-
1995
- 1995-09-08 CN CN 95222271 patent/CN2256464Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081281C (en) * | 1998-09-02 | 2002-03-20 | 王培林 | Drill bit |
| CN101821068B (en) * | 2007-11-06 | 2013-05-29 | 罗伯特·博世有限公司 | Auger bit including reamer and manufacture method thereof |
| EP2696027A1 (en) * | 2012-08-06 | 2014-02-12 | Bauer Spezialtiefbau GmbH | Drilling bucket and method for drilling a bore hole |
| US9567806B2 (en) | 2012-08-06 | 2017-02-14 | Bauer Spezialtiefbau Gmbh | Drilling bucket and method for drilling a bore hole |
| CN111155936A (en) * | 2018-11-08 | 2020-05-15 | 上海城地建设股份有限公司 | Automatic check device for spiral drill bit and using method thereof |
| CN110318682A (en) * | 2019-08-07 | 2019-10-11 | 上海城地建设股份有限公司 | A kind of augers automatic opening-closing and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |