JPS5918514U

JPS5918514U - Large diameter pipe pulling “A” joint connection jig

Info

Publication number: JPS5918514U
Application number: JP11389582U
Authority: JP
Inventors: 大谷　寅造
Original assignee: 住友電気工業株式会社
Priority date: 1982-07-26
Filing date: 1982-07-26
Publication date: 1984-02-04

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はこの考案にカする大口径管の引寄せ嵌合接続治
具を引寄せ管に装着した場合の説明用、一部縦断側面図
である。ａ、　　ｂ・・・大口径管、１・・・管端部、２・・・
拡径管端部、３，４・・・割り形輪状鉤形フランジ、３
″、４“・・・ナツト、５・・・油圧シリンダ、５’、
５“・・・ピストン、・６・・・給油口、６′・・・給
油管、７・・・排油口、７′・・・排油管、８・・・圧
油分配器、９・・・送油管、１０・・・手動油圧ポンプ
。FIG. 1 is a partially longitudinal side view for explaining the case where a large-diameter pipe pulling fit connection jig according to this invention is attached to a pulling pipe. a, b...Large diameter pipe, 1...Pipe end, 2...
Expanded diameter pipe end, 3, 4...Split annular hook-shaped flange, 3
″, 4″... Nut, 5... Hydraulic cylinder, 5',
5"... Piston, 6... Oil supply port, 6'... Oil supply pipe, 7... Oil drain port, 7'... Oil drain pipe, 8... Pressure oil distributor, 9...・Oil pipe, 10...manual hydraulic pump.

Claims

[Scope of utility model registration request]

Splits are temporarily attached and fixed to the outer periphery of the large-diameter pipe near the fitting connection part of the large-diameter pipe to be fitted and connected in a straight line, respectively, through washers, so as to form a right angle to the axis of the large-diameter pipe. a ring-shaped hook-shaped flange, and an opposing piston between the flanges, each of the pistons being arranged parallel to the axis of the large-diameter pipe, and a tip end of each piston penetrating each of the hook-shaped flanges. a plurality of opposed piston type hydraulic cylinders each fixed by two nuts tightened on both the front and back sides of the flange and disposed at equal intervals in the circumferential direction of the large diameter pipe; a refueling port in the hydraulic cylinder; An oil supply pipe and an oil drain pipe each having one end connected to an oil drain port and the other end connected to a single pressure oil distributor configured to be able to switch between oil supply and oil discharge, and the pressure oil distributor A large-diameter pipe pulling fitting connection jig characterized by comprising one manual hydraulic pump that supplies pressure oil to the pipe.