JPH0223096U - - Google Patents
Info
- Publication number
- JPH0223096U JPH0223096U JP10092088U JP10092088U JPH0223096U JP H0223096 U JPH0223096 U JP H0223096U JP 10092088 U JP10092088 U JP 10092088U JP 10092088 U JP10092088 U JP 10092088U JP H0223096 U JPH0223096 U JP H0223096U
- Authority
- JP
- Japan
- Prior art keywords
- wellhead
- packings
- fixed
- packing
- wire
- 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
- 238000012856 packing Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
図面は本考案の実施例を示すもので、第１図は
縦断側面図、第２図は引張り固定手段の縦断面図
、第３図は前部パツキンの一部正面図である。
４……坑口、５……前部パツキン、６……後部
パツキン、８〜１０……リング、１４，１５……
注入パイプ、１６……ワイヤー、ａ……シールド
掘削機、ｂ……管体、ｃ……不透水膜。
The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal sectional side view, FIG. 2 is a longitudinal sectional view of the tension fixing means, and FIG. 3 is a partial front view of the front packing. 4... Well mouth, 5... Front packing, 6... Rear packing, 8-10... Ring, 14, 15...
Injection pipe, 16... wire, a... shield excavator, b... pipe body, c... impermeable membrane.
Claims (1)
出した前後パツキンを前後に適宜間隔を存して固
定し、さらに坑口にこれらの前後パツキンにおけ
る前方のパツキンの内周部を径方向に拡縮させる
適宜な引張り固定手段を配設したことを特徴とす
る坑口パツキン。 引張り固定手段は、坑口に固定したリングに
ワイヤーを進退自在に挿通し、このワイヤーの先
端を前部パツキンの先端部外面に連結してなる請
求項記載の坑口パツキン。[Scope of Claim for Utility Model Registration] Front and rear packings are fixed to the periphery of the mine entrance with their inner circumferential portions protruding toward the mine entrance with appropriate spacing in the front and back, and furthermore, the front packings of these front and rear packings are fixed to the mine entrance at an appropriate distance. A wellhead packing characterized by being provided with appropriate tension fixing means for expanding and contracting the inner circumference in the radial direction. The wellhead packing according to claim 1, wherein the tension fixing means comprises a wire that is inserted into a ring fixed to the wellhead so as to be movable forward and backward, and the tip of the wire is connected to the outer surface of the tip of the front packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10092088U JPH0547830Y2 (en) | 1988-07-28 | 1988-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10092088U JPH0547830Y2 (en) | 1988-07-28 | 1988-07-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0223096U true JPH0223096U (en) | 1990-02-15 |
| JPH0547830Y2 JPH0547830Y2 (en) | 1993-12-16 |
Family
ID=31329438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10092088U Expired - Lifetime JPH0547830Y2 (en) | 1988-07-28 | 1988-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0547830Y2 (en) |
-
1988
- 1988-07-28 JP JP10092088U patent/JPH0547830Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0547830Y2 (en) | 1993-12-16 |
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