JPS62160670U

JPS62160670U -

Info

Publication number: JPS62160670U
Application number: JP4766086U
Authority: JP
Priority date: 1986-03-31
Filing date: 1986-03-31
Publication date: 1987-10-13

Description

[Brief explanation of the drawing]

第１図は縦断面図、第２図は部分断面図、第３
図は部分断面図を示す。２……弁筒、２ａ……弁筒下部、３……大ピス
トン、４……小ピストン、５……液室、６……放
出弁、１２……可動シリンダ、１３……隙間、１
４，１４ａ……切欠、１８……吸込弁。 Figure 1 is a longitudinal sectional view, Figure 2 is a partial sectional view, and Figure 3 is a longitudinal sectional view.
The figure shows a partial sectional view. 2... Valve cylinder, 2a... Lower part of the valve cylinder, 3... Large piston, 4... Small piston, 5... Liquid chamber, 6... Release valve, 12... Movable cylinder, 13... Gap, 1
4, 14a... Notch, 18... Suction valve.

Claims

[Scope of utility model registration request]

Pistons are placed above and below the valve cylinder, and when the piston moves up, the suction valve is opened. When the piston moves down, the pressure in the liquid chamber between the pistons is increased, and at the same time, the discharge valve is opened to inject the liquid inside the liquid chamber. In the pump of this structure, a movable cylinder 1 with a small piston 4 is installed in the lower part 1a of the valve cylinder.
2 is received in the valve bottom 2b, a small piston member is spring supported in the cylinder 12, and the cylinder 1
2 is made vertically movable together with the piston member, an outer passage is provided from the suction pipe 15 side to the liquid chamber 5 by the outer gap 13 of the movable cylinder 12 and the notches 14, 14a of the valve bottom 2b, and an enlarged flange at the upper end of the cylinder is provided. 16
When the piston moves up, the outer passage is connected to the engagement part with the inner step 17 of the liquid chamber 5. When the piston moves upward, the outer passage is opened, and when the piston moves downward,
A horizontal hole is formed in the circumferential wall of the movable cylinder, directly above the small piston 4 at bottom dead center, and communicating with the liquid chamber 5 and the outer passage closed by the suction valve 18. A hand spray pump consisting of 20 parts.