JPS5984083U - Drilling equipment for large diameter holes - Google Patents
Drilling equipment for large diameter holesInfo
- Publication number
- JPS5984083U JPS5984083U JP15196983U JP15196983U JPS5984083U JP S5984083 U JPS5984083 U JP S5984083U JP 15196983 U JP15196983 U JP 15196983U JP 15196983 U JP15196983 U JP 15196983U JP S5984083 U JPS5984083 U JP S5984083U
- Authority
- JP
- Japan
- Prior art keywords
- drill pipe
- metal fitting
- excavator
- ground
- diameter
- 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.)
- Granted
Links
Landscapes
- Earth Drilling (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案装置の１実施例に於ける掘削開始時の状
況を示す縦断面図、第２図は同掘削時の状況を示す縦断
面図、第３図は同掘削作業終了時の状況を示す縦断面図
、第４図は第２図に於けるビット部分の拡大図、第５図
は第４図のＩ−Ｉ線に沿う横断平面図、第６図は第４図
の■〜■錬に沿う横断平面図である。
図に於て、１は防水チューブ、２はケーシング、３は掘
削機、４はドリルパイプ、５はビット、６は余掘り、７
は引込み金具、８は環状金具である。Fig. 1 is a longitudinal sectional view showing the situation at the start of excavation in one embodiment of the device of the present invention, Fig. 2 is a longitudinal sectional view showing the situation during the same excavation, and Fig. 3 is a longitudinal sectional view showing the situation at the end of the same excavation work. FIG. 4 is an enlarged view of the bit part in FIG. 2, FIG. 5 is a cross-sectional plan view along line I-I in FIG. 4, and FIG. 6 is a cross-sectional view showing the situation in FIG. ~ ■ It is a cross-sectional plan view along the line. In the figure, 1 is a waterproof tube, 2 is a casing, 3 is an excavator, 4 is a drill pipe, 5 is a bit, 6 is an extra digging, 7
8 is a retractable metal fitting, and 8 is an annular metal fitting.
Claims (1)
孔を掘削するための掘削機、上記掘削機により掘削され
た掘削土を地上へ排出するために、地上と孔底間に液を
循環させるための液循環機構、及び掘削孔の口径に対応
する外径を有していて、縦軸方向に折畳まれた状態で地
上の孔掘削位饋にセットされる、柔軟弾性を有する防水
チューブを−具備し、上記掘削機のドリルパイプの下端
部には、回転に対しフリーになって、いる引込み金具が
、一方防水チューブの下端には、ドリルパイプの掘削前
進時には上記引込み金具に係止されるが１、該パイプの
退出時には該金具との係止が解かれる環状金具が、それ
ぞれ備えられ、且つドリルパイプ下端のビットの本体に
は、ドリルパイプの前進時には張出し状態を保持し、退
出時には前記チューブめ内径よりも小さい寸法となるよ
うにビット本体内に収納される刃板が備えられているこ
とを特徴とする大口径孔の掘削装置。
、。An excavator for drilling large-diameter holes using a bit provided at the lower end of a drill pipe, which circulates liquid between the ground and the bottom of the hole in order to discharge the excavated soil excavated by the excavator to the ground. A flexible and elastic waterproof tube, which has an outer diameter corresponding to the diameter of the borehole and is folded in the vertical axis direction and set on the ground while the borehole is being excavated. - The lower end of the drill pipe of the excavator is provided with a retractable fitting which is free from rotation, while the lower end of the waterproof tube is latched to the retractable fitting when the drill pipe advances in excavation. However, 1, an annular metal fitting is provided, which is released from the metal fitting when the pipe is withdrawn, and the body of the bit at the lower end of the drill pipe maintains an overhanging state when the drill pipe moves forward, and a ring-shaped metal fitting is disengaged from the metal fitting when the pipe is withdrawn. A drilling device for a large diameter hole, comprising a blade plate housed within the bit body so as to have a size smaller than the inner diameter of the tube.
,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15196983U JPS5984083U (en) | 1983-09-29 | 1983-09-29 | Drilling equipment for large diameter holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15196983U JPS5984083U (en) | 1983-09-29 | 1983-09-29 | Drilling equipment for large diameter holes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5984083U true JPS5984083U (en) | 1984-06-06 |
| JPS632542Y2 JPS632542Y2 (en) | 1988-01-22 |
Family
ID=30336614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15196983U Granted JPS5984083U (en) | 1983-09-29 | 1983-09-29 | Drilling equipment for large diameter holes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5984083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006274578A (en) * | 2005-03-28 | 2006-10-12 | Geotop Corp | Widening excavator |
-
1983
- 1983-09-29 JP JP15196983U patent/JPS5984083U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006274578A (en) * | 2005-03-28 | 2006-10-12 | Geotop Corp | Widening excavator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS632542Y2 (en) | 1988-01-22 |
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