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A check valve for an air chamber of an air suspension mechanism in which a shock absorber is surrounded by a housing and an elastic body to form the air chamber, includes an air supply tube, a connector welded airtightly to the housing and having on an outer peripheral surface a first thread and on

A check valve for an air chamber of an air suspension mechanism in which a shock absorber is surrounded by a housing and an elastic body to form the air chamber, includes an air supply tube, a connector welded airtightly to the housing and having on an outer peripheral surface a first thread and on an inner peripheral surface a second thread respectively, a valve body formed of a rubber to converge inward of the housing and having in an inner end a slit, a nut screwed onto the first thread of the connector to fix the valve body to the connector and a mounting nut screwed into the second thread of the connector to removably connect the air supply tube to the connector. The slit of the valve body is expanded by the air supply tube after a thread of the mounting nut is engaged with the second thread of the connector in one or a few screw threads.

대표청구항 ▼

A check valve in an air chamber of an air suspension mechanism in which a shock absorber is surrounded with a housing and an elastic body to form said air chamber and a tube is provided for supplying air to the air chamber, said check valve comprising: a connector having first and second ends thereo

A check valve in an air chamber of an air suspension mechanism in which a shock absorber is surrounded with a housing and an elastic body to form said air chamber and a tube is provided for supplying air to the air chamber, said check valve comprising: a connector having first and second ends thereof separated axially from each other and formed so as to enable said air supply tube to be inserted into and removed from said first end thereof, the connector including a threaded portion provided on an interior surface thereof wherein the housing to which said connector is fixed airtightly with said second end thereof is disposed inside the housing; a mounting nut into which said air supply tube is fitted and having a threaded portion provided on an exterior surface thereof which is capable of engaging with said threaded portion of the connector; and a valve body formed of an elastic material having a slit formed therein and fixed airtightly to said connector, wherein a distance between an end surface of the tube and a beginning turn of said threaded portion of the mounting nut is smaller than a distance between an abutting point of the tube against the valve body and a beginning turn of said threaded portion of the connector such that during removal of said mounting nut from said connector said slit is closed before said threaded portion of said mounting nut is disengaged from said threaded portion of said connector.