PNEUMATIC CONTROL APPARATUS AND ADJUSTMENT VALVE

PROBLEM TO BE SOLVED: To provide a pneumatic control apparatus which, without any influence of an operation when a compression coil spring is compressed or expanded, correctly displace a valve seat to prevent exhaust leakage and defect of adjusted pressure.SOLUTION: A pneumatic control apparatus has...

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Bibliographic Details
Main Author INOUE KAZUHISA
Format Patent
LanguageEnglish
Japanese
Published 15.11.2018
Subjects
ACTUATING-FLOATS
BLASTING
COCKS
CONTROLLING
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
PHYSICS
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a pneumatic control apparatus which, without any influence of an operation when a compression coil spring is compressed or expanded, correctly displace a valve seat to prevent exhaust leakage and defect of adjusted pressure.SOLUTION: A pneumatic control apparatus has first and second housings 22, 23, a diaphram 42 for partitioning each of the housings to first air chamber (one air chamber) 25 and second air chamber (the other air chamber) 43, and a valve seat 44 supported by the diaphram 42. The pneumatic control apparatus has a valve body 32 disposed in the first air chamber 25 for opening and closing an open hole 48 of the valve seat 44, and a pressure adjustment mechanism (a pressure adjustment bolt 53, and an upper seat 54) for adjusting a force applied to the diaphram 42 from the side of the second air chamber 43. The pneumatic control apparatus has a main spring (a compression coil spring) 41 housed in the second air chamber 43 for applying a spring force to a lower seat (spring receiver member) 51 provided at the valve seat 44. A shaft bearing 52 is provided between the valve seat 44 and the lower seat 51.SELECTED DRAWING: Figure 1 【課題】圧縮コイルばねが圧縮あるいは伸長するときの挙動の影響を受けることなく、バルブシートが正しく変位して排気漏れや調圧不良を生じることがない空気圧制御装置を提供する。【解決手段】第１および第２のハウジング２２，２３と、ハウジング内を第１の気室２５（一方の気室）と第２の気室４３（他方の気室）とに仕切るダイヤフラム４２と、ダイヤフラム４２に支持されたバルブシート４４とを備える。第１の気室２５に配置されてバルブシート４４の貫通孔４８を開閉する弁体３２と、ダイヤフラム４２に第２の気室４３側から加えられる力を調整する調圧機構（圧力調整用ボルト５３，アッパーシート５４）とを備える。第２の気室４３に収容され、バルブシート４４に設けられたロアシート５１（ばね受け部材）にばね力を加えるメインスプリング４１（圧縮コイルばね）を備える。バルブシート４４とロアシート５１との間に軸受５２が介装されている。【選択図】 図１
Bibliography:Application Number: JP20170081882