JPS58191471U

JPS58191471U - Four-way switching valve that is easy to disassemble and clean

Info

Publication number: JPS58191471U
Application number: JP8953382U
Authority: JP
Inventors: 正行原
Original assignee: 大日本印刷株式会社
Priority date: 1982-06-17
Filing date: 1982-06-17
Publication date: 1983-12-20

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、従来公知の定量充填装置の配管系統略図、第
２図は、本考案分解、洗浄が容易な四方切替弁の縦断面
図で、第３図は、第２図示のものの■−■線断面図およ
び向弁を用いた定量充填装置の配管系統略図を示す。１・・・ボデー、２・・・プラグ、３・・・リング状シ
ール、４・・・テールカバー、５・・・ヘッドカバー、
６・・・ピストン、７・・・ピストンロッド、８・・・
調整ナツト、９・・・圧縮ばね、１０・・・圧搾空気供
給口、１１・・・ボルト。第１図 −第２図Fig. 1 is a schematic diagram of the piping system of a conventionally known quantitative filling device, Fig. 2 is a longitudinal sectional view of the four-way switching valve of the present invention, which is easy to disassemble and clean, and Fig. 3 is the one shown in Fig. 2. ■A line cross-sectional view and a piping system schematic diagram of a quantitative filling device using a facing valve are shown. 1...Body, 2...Plug, 3...Ring seal, 4...Tail cover, 5...Head cover,
6... Piston, 7... Piston rod, 8...
Adjustment nut, 9... Compression spring, 10... Compressed air supply port, 11... Bolt. Figure 1-Figure 2

Claims

[Scope of utility model registration request]

The plug has cylindrical surfaces of large and small diameters at the upper and lower ends, and a conical surface connects them.Only the center cross section of the plug is cut out from the circumferential surface so that it has a weight shape, so that it can slide closely against the circumferential surface of the plug. A body having a hole is provided with independent channels on all four sides corresponding to the notch of the plug, and when the plug rotates around the rotation axis of the conical surface within the hole of the body, the notch opens. A four-way switching valve is provided in which a ring-shaped seal is fitted to the small-diameter cylindrical portion of the plug to connect it to a hole in the body. It is possible to slide in the axial direction while maintaining watertightness between the parts, and the rotating shaft extends from the end through the head cover of the body.
An operating lever with an adjustment nut is removably fitted here via a detent and screwed in the axial direction, and a ring-shaped seal is also fitted on the large-diameter cylindrical part of the plug to secure the body. A compression spring is applied between the cylindrical end and a tail cover removably fixed to the body, so that the conical surface of the plug is always maintained. is pressed into contact with the sliding hole surface of the body to improve mutual watertightness, and the shaft of the piston, which is moved axially by compressed air in the cylinder provided in the tail cover, and the cylindrical end extension shaft are axially connected. Disassembly, characterized in that they are removably engaged and the compressed air is introduced into a cylinder gap provided between the tail cover side and the piston.
Washable four-way switching valve!