JPS63128204U

JPS63128204U -

Info

Publication number: JPS63128204U
Application number: JP1998287U
Authority: JP
Priority date: 1987-02-16
Filing date: 1987-02-16
Publication date: 1988-08-22

Description

[Brief explanation of the drawing]

第１図より第４図は本考案の実施例に係り、第
１図は構成を示す縦断面図、第２ａ，２ｂ，２ｃ
図は第１図の―断面を示し、第２ａ図はリセ
ツト状態の断面図、第２ｂ図はテスト状態の断面
図、第２ｃ図はトリツプ状態の断面図、第３ａ，
３ｂ，３ｃ図は第１図の―断面を示し、第３
ａ図はリセツト状態の断面図、第３ｂ図はテスト
状態の断面図、第３ｃ図はトリツプ状態の断面図
、第４図は第１図の―断面図、第５図以下は
従来例で、第５図は構成を示す縦断面図、第６ａ
，６ｂ図は第５図の―断面を示し、第６ａ図
はリセツト状態の断面図、第６ｂ図はトリツプ状
態の断面図、第７図は第５図の―断面図であ
る。１……弁室、１ａ……弁座、６……弁体、７…
…弁棒、８……ロツド、２１……レバー、２２…
…トリツプシリンダ、５１……切欠き鞘、５１ａ
……切欠き、５１ｂ，５２ａ……突起部、５２…
…スクリユーブツシユ、５３……ストツパ、５３
ａ……リセツト溝、５３ｂ……トリツプ溝、５５
……テストシリンダ。 Figures 1 to 4 relate to embodiments of the present invention; Figure 1 is a vertical sectional view showing the configuration; Figures 2a, 2b, 2c;
The figure shows a sectional view of FIG. 1, FIG. 2a is a sectional view of the reset state, FIG. 2b is a sectional view of the test state, FIG. 2c is a sectional view of the tripped state, and FIG.
Figures 3b and 3c show the - cross section of Figure 1, and
Figure a is a cross-sectional view of the reset state, Figure 3b is a cross-sectional view of the test state, Figure 3c is a cross-sectional view of the trip state, Figure 4 is a cross-sectional view of Figure 1, and Figures 5 and below are conventional examples. Fig. 5 is a vertical sectional view showing the configuration, Fig. 6a
, 6b shows a sectional view taken in FIG. 5, FIG. 6a shows a sectional view in a reset state, FIG. 6b shows a sectional view in a tripped state, and FIG. 7 shows a sectional view taken in a tripped state. 1... Valve chamber, 1a... Valve seat, 6... Valve body, 7...
...Valve stem, 8...Rod, 21...Lever, 22...
... Trip cylinder, 51 ... Notch sheath, 51a
...Notch, 51b, 52a...Protrusion, 52...
...screwbutsuyu, 53...stoppa, 53
a...Reset groove, 53b...Trip groove, 55
...Test cylinder.

Claims

[Scope of utility model registration request]

The valve is configured to allow steam to flow through a gap formed between the valve seat and the valve body in the valve chamber, or to block the flow of steam by closing the gap, and is connected to the valve body via a connecting rod. and a blocking valve equipped with an emergency shutoff device comprising a notch sheath that is biased in advance so as to be movable in the direction of closing the gap, and a restraining means for restraining the movement of the notch sheath in the direction of closing the gap. a bush having a protrusion on its inner periphery and fitted to the connecting rod so as to be movable in the axial direction; a notch that can be inserted into the protrusion of the bush; and a protrusion on the outer periphery; A notched sheath pivotally attached to the connecting rod, a rotation means connected to the notched sheath, and a cylindrical stopper provided with a groove through which a protrusion of the notched sheath can pass in the axial direction. Equipped with a blocking valve test device.