JPH025489U - - Google Patents
Info
- Publication number
- JPH025489U JPH025489U JP8203588U JP8203588U JPH025489U JP H025489 U JPH025489 U JP H025489U JP 8203588 U JP8203588 U JP 8203588U JP 8203588 U JP8203588 U JP 8203588U JP H025489 U JPH025489 U JP H025489U
- Authority
- JP
- Japan
- Prior art keywords
- metal tube
- tube members
- insulating
- annular groove
- interposed
- 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
- 239000002184 metal Substances 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims 2
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案を実施した井戸用絶縁管部材の
一例についてその構造を示す縦断面図、第２図は
第１図で下方に位置する金属管部材の結合面側端
面図である。
図中、１ａ，１ｂ：金属管部材、２ａ，２ｂ：
管材接続用のねじ部、４ａ，４ｂ：環状溝、５：
絶縁性シールリング、８：凹み、９：段差、１０
，１３：絶縁材、１１：ボルト。
FIG. 1 is a longitudinal cross-sectional view showing the structure of an example of an insulating tube member for a well according to the present invention, and FIG. 2 is an end view of the connecting surface side of the metal tube member located below in FIG. 1. In the figure, 1a, 1b: metal pipe members, 2a, 2b:
Threaded part for connecting pipe material, 4a, 4b: Annular groove, 5:
Insulating seal ring, 8: recess, 9: step, 10
, 13: Insulating material, 11: Volt.
Claims (1)
れ、反結合側端部に管材接続用のねじ部２を備え
る一対の金属管部材１ａ，１ｂからなり、両金属
管部材１ａ，１ｂが突合せ結合面の内周側に周設
した環状溝４に絶縁性リングシール５を介在させ
るとともに接触面間に絶縁材１０を介在させた状
態で突合せ結合面の外周側において軸方向のボル
ト１１にて締結され、該ボルト１１は一方の金属
管部材１ｂの外周面に穿設した凹み８に頭部を収
容するとともに両金属管部材１ａ，１ｂとの間を
絶縁し、更に前記突合せ結合面は環状溝４より外
周側の周方向で突合せ結合面にほぼ直角な段差９
を有し、両金属管部材１ａ，１ｂは外面側および
内面側に露出する面の全てを絶縁材１３で被覆し
てなることを特徴とする井戸用絶縁管部材。 It consists of a pair of metal tube members 1a and 1b which are butt-joined at the axially intermediate portion on a surface perpendicular to the axis and have a threaded portion 2 for connecting the tube material at the end on the opposite side of the connection, and both metal tube members 1a and 1b are An insulating ring seal 5 is interposed in the annular groove 4 provided around the inner circumferential side of the butt joint surface, and an insulating material 10 is interposed between the contact surfaces. The head of the bolt 11 is accommodated in a recess 8 bored in the outer circumferential surface of one of the metal tube members 1b, and the bolt 11 insulates the two metal tube members 1a and 1b. A step 9 approximately perpendicular to the butt joint surface in the circumferential direction on the outer circumferential side of the annular groove 4
An insulating tube member for a well, characterized in that both metal tube members 1a and 1b are coated with an insulating material 13 on all surfaces exposed to the outer and inner surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8203588U JPH025489U (en) | 1988-06-20 | 1988-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8203588U JPH025489U (en) | 1988-06-20 | 1988-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH025489U true JPH025489U (en) | 1990-01-16 |
Family
ID=31306803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8203588U Pending JPH025489U (en) | 1988-06-20 | 1988-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH025489U (en) |
-
1988
- 1988-06-20 JP JP8203588U patent/JPH025489U/ja active Pending