JPH03105794U

JPH03105794U -

Info

Publication number: JPH03105794U
Application number: JP1473290U
Authority: JP
Priority date: 1990-02-19
Filing date: 1990-02-19
Publication date: 1991-11-01
Anticipated expiration: 2005-02-19
Also published as: JPH087177Y2

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す芯出し治具の
斜視図、第２図は上記治具の取付状態を示す側面
図、第３図は同底面図、第４図は同正面図、第５
図ａ，ｂは移動調整部材の側面図と断面図、第６
図はプラグ締め機側の目盛板の取付図、第７図は
異径分岐部の取出し方向が傾斜している場合の側
面図、第８図〜第１８図は従来の異径分岐工法の
説明図で、第８図は異径分岐部の取付図、第９図
はプラグとネツク部フイツテイングの結合図、第
１０図は分岐管の取付図、第１１図はプラグ締め
機の断面図、第１２図及び第１３図はプラグ芯出
し作業の説明図、第１４図は合いマーク表示作業
の説明図、第１５図及び第１６図は本管穿孔作業
の説明図、第１７図及び第１８図はネツク部フイ
ツテイング閉止作業の説明図である。１……クランプ装置、２……連結部材、３……
支持装置、１０……芯出し治具、３２，３３，３
４……移動調整部材、３８……移動調整部材側目
盛板、４０……プラグ締め機側目盛板、１００…
…本管、１０１……短管、１０２……Ｔ字管、１
０３……ベンド管、１０４……ネツク部フイツテ
イング、１１０……異径分岐部、１１２……分岐
管、１２０……プラグ、１３０……プラグ締め機
、１４０……ゲートバルブ。 Fig. 1 is a perspective view of a centering jig showing an embodiment of the present invention, Fig. 2 is a side view showing how the jig is installed, Fig. 3 is a bottom view thereof, and Fig. 4 is a front view thereof. , 5th
Figures a and b are a side view and a sectional view of the movement adjustment member,
The figure is an installation diagram of the scale plate on the plug tightening machine side, Figure 7 is a side view when the extraction direction of the different diameter branch part is inclined, and Figures 8 to 18 are explanations of the conventional different diameter branch construction method. In the drawings, Fig. 8 is an installation diagram of a different diameter branch, Fig. 9 is a connection diagram of a plug and neck fitting, Fig. 10 is an installation diagram of a branch pipe, Fig. 11 is a sectional view of a plug tightening machine, and Fig. 11 is a sectional view of a plug tightening machine. Figures 12 and 13 are illustrations of the plug centering work, Figure 14 is an illustration of the matching mark display work, Figures 15 and 16 are illustrations of the main pipe drilling work, and Figures 17 and 18. FIG. 2 is an explanatory diagram of the work of closing the connecting portion. 1... Clamp device, 2... Connection member, 3...
Support device, 10... Centering jig, 32, 33, 3
4...Movement adjustment member, 38...Movement adjustment member side scale plate, 40...Plugging machine side scale plate, 100...
...Main pipe, 101...Short pipe, 102...T-shaped pipe, 1
03...Bend pipe, 104...Network fitting, 110...Different diameter branch, 112...Branch pipe, 120...Plug, 130...Plugging machine, 140...Gate valve.

Claims

[Scope of Claim for Utility Model Registration] In a centering jig used for centering a plug tightening machine with respect to a gate valve in the hot tap method of different diameter branch construction, at least the different diameter branch between the gate valve and the main pipe A clamping device to be fixed, a connecting member connected to the clamping device, and a supporting device provided at one end of the connecting member to support the plug tightening machine in a finely adjustable manner, the supporting device being configured to support the plug tightening machine in a finely adjustable manner. At least three movement adjustment members that contact the side surface of the plug tightener and can slightly move the plug tightener in the horizontal and vertical directions; and at least three contact portions on the movement adjustment member side and the plug tightener side, respectively. A centering jig characterized by comprising a scale plate.