JPH03117191U

JPH03117191U -

Info

Publication number: JPH03117191U
Application number: JP2594590U
Authority: JP
Priority date: 1990-03-14
Filing date: 1990-03-14
Publication date: 1991-12-04
Anticipated expiration: 2005-03-14
Also published as: JP2507100Y2

Description

[Brief explanation of drawings]

第１図は第１実施例の管継手の要部拡大断面図
、第２図はアダプタにホース用ステムを連結した
場合の要部縦断面図、第３図は袋ナツトを締め付
ける前の状態にあるアダプタとステムと点検窓の
位置関係を示す図、第４図は点検窓を多数設けた
場合の異なる実施例を示す平面図、第５図は第１
図のアダプタの第２ねじをテーパねじとした異な
る実施例の管継手を示す図、第６図は第１図のス
テムに代えてスリーブを溶着したチユーブを使用
し、アダプタに代えてチーを使用した別の実施例
の管継手を示す図、第７図は第１図のステムに代
えてスリーブを溶着したチユーブを使用した更に
異なる実施例の要部断面図である。１……管継手、２……アダプター、４……第１
連結管部、５……第２連結管部、７……Ｏリング
、１０……ステム、１１……衝合端面、１４……
ホース取付部、１５……スリーブ、２０……袋ナ
ツト、２３……点検窓。 Figure 1 is an enlarged cross-sectional view of the main part of the pipe joint of the first embodiment, Figure 2 is a longitudinal cross-sectional view of the main part when the hose stem is connected to the adapter, and Figure 3 is the state before tightening the cap nut. A diagram showing the positional relationship between a certain adapter, a stem, and an inspection window, FIG. 4 is a plan view showing a different embodiment in which multiple inspection windows are provided, and FIG.
A diagram showing a pipe joint of a different embodiment in which the second thread of the adapter shown in the figure is a tapered thread. Figure 6 uses a tube with a welded sleeve in place of the stem in Figure 1, and a tee in place of the adapter. FIG. 7 is a sectional view of a main part of a further different embodiment in which a tube to which a sleeve is welded is used in place of the stem of FIG. 1. 1... Pipe fitting, 2... Adapter, 4... First
Connecting pipe section, 5... Second connecting pipe section, 7... O-ring, 10... Stem, 11... Matching end surface, 14...
Hose attachment part, 15...sleeve, 20...cap nut, 23...inspection window.

Claims

[Claims for Utility Model Registration] (1) A cap nut to be hooked to the flange is slidably fitted onto a tubular member having a flange at its tip, and an annular nut is attached to the mating end surface of the connecting pipe part of the adapter. Provide an O-ring groove in the O-ring and insert the O-ring into the O-ring groove.
The tubular member and the adapter are brought into contact with each other without a gap through the ring so that the inner hole can communicate with each other, and the cap nut is screwed into the screw carved on the outer periphery of the connecting pipe portion to connect the tubular member and the adapter. The pipe joint for connecting the O-ring to the O-ring is characterized in that an inspection window is provided on the outer circumferential surface of the cap nut and extends from the outer circumference of the end surface of the tubular member and opens in correspondence with the protruding width of the O-ring. pipe fittings. (2) The pipe joint according to claim 1, wherein the cap nut is a hexagonal nut, and a plurality of inspection windows are transparently provided at equal intervals on the plane of the peripheral wall of the cap nut.