JPH0441591U

JPH0441591U -

Info

Publication number: JPH0441591U
Application number: JP8393190U
Authority: JP
Priority date: 1990-08-08
Filing date: 1990-08-08
Publication date: 1992-04-08
Anticipated expiration: 2005-01-11
Also published as: JPH07554Y2

Description

[Brief explanation of the drawing]

第１図は本考案のシールドセグメントグラウト
ホール用逆止弁の第１実施例を示す縦断正面図、
第２図は同上縦断側面図、第３図は同上平面図、
第４図は同上開弁状態の縦断側面図、第５図は同
上検知棒挿入時の縦断側面図、第６図、第７図は
それぞれ従来例を示す縦断側面図、第８図は第７
図に逆止弁の開弁状態の縦断側面図、第９図はシ
ールドセグメントグラウトホールの斜視図である
。１……シールドセグメント、２……グラウトホ
ール管、２ａ……ネジ溝、３……筒体、４……ネ
ジ溝、５……水平弁座、６ａ……基部、６ｂ……
折り曲げ部、６ｃ……弁板、７……弁体、８……
縦板体、９……薄肉折り曲げ部、１０……弁板、
１１……円錐弁座、１２……貫通孔、１３……弁
支持体、１４……アーム、１５……弁体、１８…
…弁棒、２０……膨大頭部、２１……コイルバネ
、２４……弁座用係止段部、２５……ボス部、２
６……検知棒、２７……ガイドホール、２８……
バー。 FIG. 1 is a longitudinal sectional front view showing a first embodiment of the check valve for shield segment grout holes of the present invention;
Figure 2 is a longitudinal sectional side view of the same as above, Figure 3 is a plan view of the same as above,
Fig. 4 is a longitudinal side view of the valve in the open state, Fig. 5 is a longitudinal side view of the same when the detection rod is inserted, Figs. 6 and 7 are longitudinal side views of the conventional example, and Fig. 8 is the 7th
9 is a longitudinal sectional side view of the check valve in the open state, and FIG. 9 is a perspective view of the shield segment grout hole. DESCRIPTION OF SYMBOLS 1... Shield segment, 2... Grout hole pipe, 2a... Thread groove, 3... Cylindrical body, 4... Thread groove, 5... Horizontal valve seat, 6a... Base, 6b...
Bending portion, 6c... Valve plate, 7... Valve body, 8...
Vertical plate body, 9... Thin folded portion, 10... Valve plate,
DESCRIPTION OF SYMBOLS 11... Conical valve seat, 12... Through hole, 13... Valve support body, 14... Arm, 15... Valve body, 18...
... Valve stem, 20 ... Enlarged head, 21 ... Coil spring, 24 ... Valve seat locking step, 25 ... Boss part, 2
6...Detection rod, 27...Guide hole, 28...
bar.

Claims

[Scope of utility model registration request]

A valve support body with a threaded groove for threading into the inner periphery of the grout hole pipe on the outer periphery, a locking step for the valve seat formed inside one opening, and a through hole for the valve stem formed in the center of the other opening. A short cylindrical body with a valve arm integrally provided in the diametrical direction, a valve plate integrally formed from both sides of the central vertical plate serving as the base through thin bent parts, and a boss at the center lower part of the vertical plate. a valve body forming a part;
It consists of a valve stem with one end screwed onto the valve body boss and the other end with an enlarged head.The valve stem is inserted into the through hole of the valve support arm, and the valve is inserted between the enlarged head and the valve support. A check valve for a shield segment grout hole characterized by having a spring wound around the outside of the rod.