JPH03111692U - - Google Patents
Info
- Publication number
- JPH03111692U JPH03111692U JP1741490U JP1741490U JPH03111692U JP H03111692 U JPH03111692 U JP H03111692U JP 1741490 U JP1741490 U JP 1741490U JP 1741490 U JP1741490 U JP 1741490U JP H03111692 U JPH03111692 U JP H03111692U
- Authority
- JP
- Japan
- Prior art keywords
- leading
- tube
- cylinders
- small diameter
- fitting
- 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
- 238000007789 sealing Methods 0.000 claims 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図は先
導管本体の断面図、第２図は連結部の拡大断面図
、第３図は第２図円内の拡大図、第４図は従来
の先導管の断面図、第５図は第４図円内の拡大
図、第６図は第４図円内の拡大図である。
１……先導管本体、１１，１２……外筒、１１
′，１２′……内筒、１ａ……嵌合部、１ｂ……
環状溝、５……フランジ、５ｂ……嵌合孔、８…
…Ｏリング。
The drawings show an embodiment of this invention, with Fig. 1 being a cross-sectional view of the leading pipe main body, Fig. 2 being an enlarged sectional view of the connecting part, Fig. 3 being an enlarged view of the circle in Fig. 2, and Fig. 4 being a cross-sectional view of the leading tube body. A sectional view of a conventional leading pipe, FIG. 5 is an enlarged view of the circle in FIG. 4, and FIG. 6 is an enlarged view of the circle in FIG. 4. 1... Leading tube main body, 1 1 , 1 2 ... Outer tube, 1 1
', 1 2 '... Inner cylinder, 1a... Fitting part, 1b...
Annular groove, 5...flange, 5b...fitting hole, 8...
...O-ring.
Claims (1)
１を装着して発進立坑内に設置した推進装置によ
り小口径管２を地中へ推進する小口径管推進機に
おいて、上記先導管本体１を複数の分割した外筒
１１，１２…と、内筒１１′，１２′…より構成
し、かつ内筒１１′，１２′…の各端部外周に、
頂部がほぼ球面となつた突条よりなる嵌合部１ａ
を形成し、これら嵌合部１ａをフランジ５に設け
た上記外筒１１，１２…の軸線と平行する嵌合孔
５ｂに嵌合することにより、上記フランジ５を介
して各外筒１１，１２…及び各内筒１１′，１２
′…の間を連結してなる小口径管推進機の先導管
。 (2) 上記嵌合部１ａの頂部に環状溝１ｂを形成
し、この環状溝１ｂにＯリング８を設けることに
より、内筒１１′，１２′…とフランジ５の間の
シールを行うようにしてなる請求項１記載の先導
管。[Scope of Claim for Utility Model Registration] (1) A small diameter pipe in which the leading pipe main body 1 is attached to the tip of the small diameter pipe 2 to be buried and the small diameter pipe 2 is propelled underground by a propulsion device installed in the starting shaft. In the tube propulsion device, the leading tube main body 1 is composed of a plurality of divided outer cylinders 1 1 , 1 2 . . . and inner cylinders 1 1 ′, 1 2 ′ . At the outer periphery of each end of
Fitting portion 1a consisting of a protrusion with a nearly spherical top
By forming these fitting portions 1a into fitting holes 5b provided in the flange 5 and parallel to the axes of the outer cylinders 1 1 , 1 2 . . . , each outer cylinder 1 is 1 , 1 2 ... and each inner cylinder 1 1 ', 1 2
The leading tube of a small-diameter tube propulsion machine that connects between... (2) By forming an annular groove 1b at the top of the fitting part 1a and providing an O-ring 8 in this annular groove 1b, sealing is achieved between the inner cylinders 11 ', 12 '... and the flange 5. The leading pipe according to claim 1, which is formed as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1741490U JP2520768Y2 (en) | 1990-02-26 | 1990-02-26 | Leading pipe for small diameter pipe propulsion machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1741490U JP2520768Y2 (en) | 1990-02-26 | 1990-02-26 | Leading pipe for small diameter pipe propulsion machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03111692U true JPH03111692U (en) | 1991-11-15 |
| JP2520768Y2 JP2520768Y2 (en) | 1996-12-18 |
Family
ID=31520625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1741490U Expired - Lifetime JP2520768Y2 (en) | 1990-02-26 | 1990-02-26 | Leading pipe for small diameter pipe propulsion machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2520768Y2 (en) |
-
1990
- 1990-02-26 JP JP1741490U patent/JP2520768Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2520768Y2 (en) | 1996-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH03111692U (en) | ||
| JPS6331197U (en) | ||
| JPH03103395U (en) | ||
| JPS62117389U (en) | ||
| JPH02146297U (en) | ||
| JPS61152885U (en) | ||
| JPH0473669U (en) | ||
| JPH01144639U (en) | ||
| JPH0190896U (en) | ||
| JPS635119U (en) | ||
| JPS62107184U (en) | ||
| JPH01151855U (en) | ||
| JPH03130486U (en) | ||
| JPS61162695U (en) | ||
| JPS61145123U (en) | ||
| JPS62170894U (en) | ||
| JPH0163756U (en) | ||
| JPS60144954U (en) | Injection button that allows you to freely control the injection direction | |
| JPS62196992U (en) | ||
| JPH0247288U (en) | ||
| JPS6249096U (en) | ||
| JPH0284005U (en) | ||
| JPS6197470U (en) | ||
| JPH0378195U (en) | ||
| JPS62104086U (en) |