JPH0189362U

JPH0189362U -

Info

Publication number: JPH0189362U
Application number: JP18404987U
Authority: JP
Priority date: 1987-12-02
Filing date: 1987-12-02
Publication date: 1989-06-13

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す説明図、第２
図及び第３図はそれぞれ曲管部を通る時の作用説
明図、第４図はセンタリングカプセルが無いとき
の作用説明図、第５図は極間式漏洩磁束法ピグの
原理説明図、第６図及び第７図はそれぞれ従来の
走行装置の曲管部の走行状態を示す説明図である
。１０…先頭カプセル、１２…シールカツプ、１
６…弾性部材、２０…検査カプセル、２２…ワイ
ヤーブラシ、２４…推進用シール部材、３０…セ
ンタリングカプセル、３５…ケーブル。 Fig. 1 is an explanatory diagram showing one embodiment of the present invention;
Fig. 3 and Fig. 3 are respectively explanatory diagrams of the action when passing through a bent pipe section, Fig. 4 is an explanatory diagram of the action when there is no centering capsule, Fig. 5 is an explanatory diagram of the principle of the pole-to-pole type leakage flux method pig, and Fig. 6 is an explanatory diagram of the action when passing through a bent pipe section. FIG. 7 and FIG. 7 are explanatory diagrams each showing a running state of a curved pipe section of a conventional traveling device. 10... Leading capsule, 12... Seal cup, 1
6... Elastic member, 20... Inspection capsule, 22... Wire brush, 24... Propulsion seal member, 30... Centering capsule, 35... Cable.

Claims

[Scope of utility model registration request]

This is a traveling device for inspecting a tube body while moving a pole-to-pole type leakage flux method pig inside the tube body to be inspected, and includes a leading capsule with a seal cup and a propulsion seal member connected to the leading capsule via an elastic member. A traveling device for a pole-to-pole type leakage flux method pig, which is composed of a test capsule equipped with a test capsule and a centering capsule connected to the test capsule via a tension member.