JPS6298879U

JPS6298879U -

Info

Publication number: JPS6298879U
Application number: JP19192085U
Authority: JP
Priority date: 1985-12-13
Filing date: 1985-12-13
Publication date: 1987-06-24

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示すニードル弁の断
面図、第２図は同じくポペツト弁の断面図である
。また、第３図は従来例を示すニードル弁の断面
図、第４図は同例中の位置決め機構の断面図であ
る。１……弁体、２……ブロツク、４……調整ねじ
、７……背面、１０……小球、１４……凹部。 FIG. 1 is a sectional view of a needle valve showing an embodiment of the present invention, and FIG. 2 is a sectional view of a poppet valve. Further, FIG. 3 is a sectional view of a needle valve showing a conventional example, and FIG. 4 is a sectional view of a positioning mechanism in the same example. 1...Valve body, 2...Block, 4...Adjustment screw, 7...Back surface, 10...Small ball, 14...Recessed portion.

Claims

[Scope of utility model registration request]

A force above a certain level is applied to either the valve opening adjustment screw, which is installed at the rear of the valve body and displaces the valve body in the axial direction by screw feeding by an external rotation operation, or the block surrounding this adjustment screw. By providing a protrusion to be received and buried, and by forming recesses on the other side that engage with the protrusions at equal intervals in the direction of rotation of the adjustment screw, and the protrusions engage with these recesses at each fixed rotation angle of the adjustment screw. In a positioning mechanism for a valve opening adjustment screw that determines the position of a valve body, an annular cap that covers the back surface of the adjustment screw is fixed to a block, the above-mentioned protrusion is provided on either the back surface or the cap, and the above-mentioned protrusion is provided on the other side. A positioning mechanism for a valve opening adjustment screw, characterized by forming a recess.