JPH0465888U

JPH0465888U -

Info

Publication number: JPH0465888U
Application number: JP10829890U
Authority: JP
Priority date: 1990-10-16
Filing date: 1990-10-16
Publication date: 1992-06-09

Description

[Brief explanation of the drawing]

第１図乃至第４図は本考案の一実施例を示し、
第１図はシールドマシンの正面図、第２図は第１
図Ａ−Ａ線断面図、第３図は要部の縦断側面図、
第４図は逆止弁の正面図である。第５図及び第６
図は従来型を示し、第５図は逆止弁の正面図、第
６図は添加材吐出口部分の縦断側面図である。１１……シールドマシン、１２……カツタース
ポーク、１２ａ……前面板、１２ｂ……後面板、
１５……開穿部、１６……シリンダー、１６ａ…
…シリンダーキヤツプ、１７……ロツド、１７ａ
……先端部、１８……摺動孔、２１……添加材吐
出口、２２……添加材通路、Ｖ……逆止弁。 1 to 4 show an embodiment of the present invention,
Figure 1 is a front view of the shield machine, Figure 2 is the front view of the shield machine.
Figure A-A line sectional view, Figure 3 is a vertical side view of the main part,
FIG. 4 is a front view of the check valve. Figures 5 and 6
The figures show a conventional type, with FIG. 5 being a front view of the check valve, and FIG. 6 being a longitudinal sectional side view of the additive discharge port. 11... Shield machine, 12... Cutter spoke, 12a... Front plate, 12b... Rear plate,
15...Drilling part, 16...Cylinder, 16a...
...Cylinder cap, 17...Rod, 17a
... Tip part, 18 ... Sliding hole, 21 ... Additive material discharge port, 22 ... Additive material passage, V ... Check valve.

Claims

[Scope of utility model registration request]

An additive discharge port is provided on the cutter spoke front plate of a shield machine, and the additive discharge port is equipped with a check valve made of a spring plate, a plate-shaped rubber packing, etc. Opening the front plate of the cutter spoke and fixing a cylinder cap that closes the cylinder in the opening,
Further, the cylinder cap has a rod sliding hole that is open on both sides, and a rod connected to the piston of the cylinder is inserted into the rod sliding hole so as to be freely retractable, while the front end of the sliding hole is open. A check valve is attached to the additive discharge port, and an additive passage communicating with the sliding hole is provided in the cylinder cap, and the tip of the rod is connected to the cylinder cap. When the rod protrudes outward from the valve opening of the check valve, the rod is configured to close the valve opening of the check valve, and when the rod does not retreat and close the valve opening of the check valve, A face side additive material discharge port device in a shield machine, characterized in that the additive material is configured to be able to jet the additive material to the face side through the additive material passage.