JPH0462992U

JPH0462992U -

Info

Publication number: JPH0462992U
Application number: JP10409590U
Authority: JP
Priority date: 1990-10-04
Filing date: 1990-10-04
Publication date: 1992-05-28
Anticipated expiration: 2005-10-04
Also published as: JPH0755433Y2

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す正断面図、第２
図は同上分解斜視図、第３図は従来の継手装置を
示す正断面図である。図中、１は継手本体、３は雄ネジ管部、３ａは
口端部、４はインナーコア部、４ａは刻み部、４
ｂは谷部、５は割りリング、５ａは割れ部、５ｂ
はテーパー面部、５ｃは突条部、６は締め付けリ
ング、６ｂはテーパー面部、７はナツト、７ａは
鍔部、ｐはプラスチツク管である。 Figure 1 is a front sectional view showing an embodiment of the present invention, Figure 2 is a front sectional view showing an embodiment of the present invention.
The figure is an exploded perspective view of the same as the above, and FIG. 3 is a front sectional view showing a conventional joint device. In the figure, 1 is the joint body, 3 is the male threaded pipe part, 3a is the mouth end, 4 is the inner core part, 4a is the notched part, 4
b is the valley, 5 is the split ring, 5a is the crack, 5b
5c is a tapered surface, 6 is a tightening ring, 6b is a tapered surface, 7 is a nut, 7a is a flange, and p is a plastic tube.

Claims

[Scope of utility model registration request]

The fitting body has an inner core part integrally protruding from the male threaded pipe part on the side to which the plastic pipe is connected, and the inner core part is fitted onto the inner core part so that the plastic pipe can be sandwiched between the joint body and the inner core part. This joint device for plastic pipes is equipped with a split ring attached to the inner core part and a tightening ring slidably fitted onto the split ring, and the outer circumferential surface of the inner core part has a part along the axial direction of the inner core part. A plurality of locking notches are provided on the inner circumferential surface of the split ring so as to face the valleys of the locking grooves when the tightening of the split ring by the tightening ring is completed. The outer peripheral surface of the rear end of the split ring is formed into a tapered surface that gradually becomes smaller in diameter toward the tip, and the rear end of the tightening ring is formed in correspondence with this tapered surface. The inner peripheral surface is formed into a tapered surface part, and the male threaded pipe part of the joint body is screwed with a nut whose rear end opening is provided with a flange part against which the rear end part of the tightening ring comes into contact. A fitting device for plastic pipes.