JPH02102090U - - Google Patents
Info
- Publication number
- JPH02102090U JPH02102090U JP1095689U JP1095689U JPH02102090U JP H02102090 U JPH02102090 U JP H02102090U JP 1095689 U JP1095689 U JP 1095689U JP 1095689 U JP1095689 U JP 1095689U JP H02102090 U JPH02102090 U JP H02102090U
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- annular groove
- ring
- joint
- nut
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000012856 packing Methods 0.000 claims description 4
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 3
- 230000037431 insertion Effects 0.000 claims 3
- 229910001220 stainless steel Inorganic materials 0.000 claims 3
- 239000010935 stainless steel Substances 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000002788 crimping Methods 0.000 claims 1
Description
第１図は本考案のメカニカル継手の要部断面図
、第２図は環状溝のない状態でナツトを本締めし
た状態を示す。第３図は本考案くい込み環の正面
図、第４図は第３図のＡ―Ａ矢視断面拡大図、第
５図は本考案に係るメカニカル継手による鋼管の
接合方法を示す説明図、Ａ……鋼管の差し込み時
の状態を示す。Ｂ……鋼管を差し込み完了時の状
態を示す、Ｃ……ナツトの本締めし接合完了時の
状態を示す。
第６図は従来のメカニカル継手の一例を示す。
Ａ……鋼管を接合した状態を示す半断面図、Ｂ…
…鋼管接合前の状態を示す要部断面図、Ｃ……鋼
管が抜け出ようとした状態を示す要部断面図。
１：継手本体、２：ナツト、３：パツキン、４
：くい込み環、５：パツキン装着部、８：パツキ
ン装着部、９：傾斜面、１２：確認針、１３：ス
プリング、、１４：合い口、１５：ジヨイント線
、２０：鋼管、２０：環状溝。
Fig. 1 is a cross-sectional view of the main part of the mechanical joint of the present invention, and Fig. 2 shows the nut fully tightened without an annular groove. FIG. 3 is a front view of the bite ring of the present invention, FIG. 4 is an enlarged cross-sectional view taken along the line A-A in FIG. ... Shows the state when the steel pipe is inserted. B... shows the state when the steel pipe is inserted and completed, C... shows the state when the nut is fully tightened and the joint is completed. FIG. 6 shows an example of a conventional mechanical joint.
A... Half cross-sectional view showing the state where the steel pipes are joined, B...
... A sectional view of the main part showing the state before the steel pipe is joined, C... A sectional view of the main part showing the state where the steel pipe is about to come out. 1: Joint body, 2: Nut, 3: Packing, 4
: Biting ring, 5: Seal attachment part, 8: Seal attachment part, 9: Inclined surface, 12: Confirmation needle, 13: Spring, 14: Joint opening, 15: Joint wire, 20: Steel pipe, 20: Annular groove.
Claims (1)
外周面におねじ６が形成されている継手本体１に
、本体のおねじ６に嵌合するめねじ７と円筒状の
パツキン装着部８とこれに連なる傾斜面９を有す
るくい込み環圧着部１０と鋼管差し込み孔１１が
設けられているナツト２が螺合組立てられ、パツ
キン３とくい込み環４とを備えている継手に、外
周面の所定位置に環状溝２１が設けられた鋼管２
０を差し込み、環状溝２１にくい込み環４が嵌り
込んで抜け出し防止力が付与されるメカニカル継
手において、くい込み環４に軸芯方向に延在する
確認針１２が設けられていることを特徴とするス
テンレス鋼鋼管用継手。 ２ くい込み環４の確認針１２の長さＬが、くい
込み環４が環状溝２１に嵌り込み接合された状態
で先端がナツト２の鋼管差し込み孔１１から突き
出て、環状溝２１に嵌り込まない状態では突き出
ない長さに形成されていることを特徴とする請求
項１記載のステンレス鋼鋼管用継手。 ３ ナツト２の傾斜面９の最大内径寸法Ｄが、く
い込み環４が鋼管２０に装着された状態における
外径寸法ｄ１より小さく、環状状態における外径
寸法ｄ１より小さく、環状溝２１に嵌り込んだ状
態における外径寸法ｄ２より大きく形成されてい
ることを特徴とする請求項１記載のステンレス鋼
鋼管用継手。[Claims for Utility Model Registration] 1. A cylindrical packing attachment portion 5 on the inner peripheral surface of the end portion,
A fitting body 1 having a thread 6 formed on its outer circumferential surface has a female thread 7 that fits into the male thread 6 of the main body, a cylindrical packing fitting part 8, and a biting ring crimping part 10 having an inclined surface 9 connected thereto. A steel pipe 2 in which a nut 2 provided with a steel pipe insertion hole 11 is screwed together, and an annular groove 21 is provided at a predetermined position on the outer peripheral surface of the joint, which is provided with a packing 3 and a biting ring 4.
0 is inserted into the annular groove 21, and the ring 4 is fitted into the annular groove 21 to provide a force to prevent slipping out.This mechanical joint is characterized in that the insertion ring 4 is provided with a confirmation needle 12 extending in the axial direction. Fittings for stainless steel pipes. 2 The length L of the confirmation needle 12 of the biting ring 4 is such that the tip protrudes from the steel pipe insertion hole 11 of the nut 2 when the biting ring 4 is fitted into the annular groove 21 and joined, but does not fit into the annular groove 21. 2. The stainless steel pipe joint according to claim 1, wherein the joint has a length that does not protrude. 3. The maximum inner diameter D of the inclined surface 9 of the nut 2 is smaller than the outer diameter d 1 when the biting ring 4 is attached to the steel pipe 20 and smaller than the outer diameter d 1 in the annular state, so that it fits into the annular groove 21. 2. The stainless steel pipe joint according to claim 1, wherein the joint has an outer diameter larger than d2 in the retracted state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1095689U JPH02102090U (en) | 1989-02-01 | 1989-02-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1095689U JPH02102090U (en) | 1989-02-01 | 1989-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02102090U true JPH02102090U (en) | 1990-08-14 |
Family
ID=31219080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1095689U Pending JPH02102090U (en) | 1989-02-01 | 1989-02-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02102090U (en) |
-
1989
- 1989-02-01 JP JP1095689U patent/JPH02102090U/ja active Pending