JPS6431191U - - Google Patents
Info
- Publication number
- JPS6431191U JPS6431191U JP12462687U JP12462687U JPS6431191U JP S6431191 U JPS6431191 U JP S6431191U JP 12462687 U JP12462687 U JP 12462687U JP 12462687 U JP12462687 U JP 12462687U JP S6431191 U JPS6431191 U JP S6431191U
- Authority
- JP
- Japan
- Prior art keywords
- propulsion
- pipe
- pilot
- leading
- bottom side
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
図面はこの考案の一実施例を示し、第１図は平
面図、第２図は側面図、第３図は油圧回路図、第
４図及び第５図は従来の説明図である。
１……推進機、３……パイロツト管、４……推
進ジヤツキ、７……パイロツトヘツド、８……作
動シリンダ、１７，２０……管路、２２……チエ
ツク弁。
The drawings show one embodiment of this invention, and FIG. 1 is a plan view, FIG. 2 is a side view, FIG. 3 is a hydraulic circuit diagram, and FIGS. 4 and 5 are explanatory views of the conventional system. DESCRIPTION OF SYMBOLS 1... Propulsion machine, 3... Pilot pipe, 4... Propulsion jack, 7... Pilot head, 8... Operating cylinder, 17, 20... Piping, 22... Check valve.
Claims (1)
端部にパイロツトヘツド７の装着されたパイロツ
ト管３を地中へ推進させてパイロツト管３の埋設
を行う小口径管の地中推進機において、上記推進
機１に設けられた推進ジヤツキ４及びパイロツト
ヘツド７内に設けられた作動シリンダ８へ油圧を
供給する油圧回路の、上記推進ジヤツキ４のボト
ム側へ通じる管路２０と、作動シリンダ８のボト
ム側へ通じる管路１７をチエツク弁２２により接
続してなる小口径管地中推進機の油圧制御装置。 In an underground propulsion machine for small diameter pipes, the pilot pipe 3 having a pilot head 7 attached to its tip is propelled into the ground by a propulsion unit 1 installed in a starting shaft 2, and the pilot pipe 3 is buried. , a pipe line 20 leading to the bottom side of the propulsion jack 4 of a hydraulic circuit that supplies hydraulic pressure to the propulsion jack 4 provided in the propulsion device 1 and the actuation cylinder 8 provided in the pilot head 7; A hydraulic control device for a small-diameter underground propulsion machine, which is formed by connecting a pipe line 17 leading to the bottom side of the pipe with a check valve 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12462687U JPS6431191U (en) | 1987-08-17 | 1987-08-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12462687U JPS6431191U (en) | 1987-08-17 | 1987-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6431191U true JPS6431191U (en) | 1989-02-27 |
Family
ID=31374528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12462687U Pending JPS6431191U (en) | 1987-08-17 | 1987-08-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6431191U (en) |
-
1987
- 1987-08-17 JP JP12462687U patent/JPS6431191U/ja active Pending