Barometric automatic switch

The utility model discloses a pneumatic automatic switch, belonging to switches. A base plate is held together with the lower end face of a housing with a clip on the right. An air-inlet screw with a screw cap is connected to a gas-cap base mounted on the base plate through a pneumatic cover. The up...

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Bibliographic Details
Main Author XINQIAN JIN
Format Patent
LanguageEnglish
Published 06.06.2007
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:The utility model discloses a pneumatic automatic switch, belonging to switches. A base plate is held together with the lower end face of a housing with a clip on the right. An air-inlet screw with a screw cap is connected to a gas-cap base mounted on the base plate through a pneumatic cover. The upper end of the gas-cap base is connected to an adjusting screw externally attached with a spring through an adjusting screw cap. The base plate on the left of the air-inlet screw is provided with an exhausting apparatus. The base plate on the left of the gas-cap base in the inner chamber of the housing is provided with a fixed base and a movable plate. Three pairs of contact switches consisting of contacts, touch plates and wiring boards are mounted in a contact support member above the movable plate. Above the contact switches, an extension tube is connected to the adjusting screw cap mounted on the housing. The utility model is characterized in reasonable structure, reliable technical performance, long electromechanical service life, good high and low temperatures resistance, complete functions, small volume, light weight, easy installation and adjustment.
Bibliography:Application Number: CN2006212589U