JPH0175686U

JPH0175686U -

Info

Publication number: JPH0175686U
Application number: JP1987170371U
Authority: JP
Priority date: 1987-11-07
Filing date: 1987-11-07
Publication date: 1989-05-23
Also published as: JPH0314626Y2

Description

[Brief explanation of the drawing]

第１図はこの考案による管継手の一実施例を示
す分割した部分縦断側面図、第２図は管体を装着
し、締め付けを完了した状態を示す部分縦断側面
図、第３図は従来の管継手に管体を装着し、締め
付けを完了した状態を示す部分縦断側面図である
。２０：継手本体、２１：内筒部、２３：外筒部
、２４，２５：受圧面、３２：加圧面、３０：締
め付けナツト、４１：環状凸部、４５：切り割り
。 Fig. 1 is a divided partial longitudinal side view showing an embodiment of the pipe joint according to this invention, Fig. 2 is a partial longitudinal side view showing the pipe body installed and tightened, and Fig. 3 is a conventional pipe joint. FIG. 3 is a partial longitudinal sectional side view showing a state in which the pipe body is attached to the pipe joint and tightening has been completed. 20: Joint body, 21: Inner cylinder part, 23: Outer cylinder part, 24, 25: Pressure receiving surface, 32: Pressure surface, 30: Tightening nut, 41: Annular convex part, 45: Cut.

Claims

[Scope of utility model registration request]

An inner cylindrical portion that fits inside the tube, and a first pressure receiving surface and a second pressure receiving surface that reduce in diameter in the tube insertion direction and are sequentially arranged closer to the tube insertion direction than the tip of the inner cylindrical portion. a joint body having an outer cylindrical part at one end, the outer cylindrical part having a male threaded part on the outer circumferential surface and substantially concentrically surrounding the inner cylindrical part to form a tube receiving groove therebetween; , which is screwed onto the outer cylindrical portion of the joint body and has a pressure surface on its inner circumferential surface facing the second pressure receiving surface of the outer cylindrical portion of the joint body and whose diameter increases in the tube insertion direction. A tightening nut, and a tapered end surface tapered outward in the radial direction that contacts the pressure surface of the tightening nut and the second pressure receiving surface of the joint body, and a tapered end surface that is provided on the outer peripheral surface and contacts the first pressure receiving surface of the joint body. and an annular convex portion whose diameter decreases in the direction of insertion of the tube body, and when the joint body is tightened, the diameter decreases in response to a pressing force in the centripetal direction, and presses the tube body from the outer periphery in the thickness direction. A pipe fitting equipped with a split tightening ring.