Patent ID: 7552745

Claim:
A valve connector, comprising: a connector housing having a through-path, the connector housing being provided with a tube connecting portion on one axial end thereof and a pipe inserting portion on the other axial end thereof, an internal valve disposed in the connector housing for opening and closing the through-path, the internal valve having a valve seat surface defined in the connector housing, a valve body including a closing portion with an abutting surface for abutting with the valve seat surface on an outer peripheral portion of the closing portion, and a compression spring biasing the valve body toward the valve seat surface, the valve body being housed in the connector housing movably in an axial direction, the valve body further having a plurality of guides extending from the closing portion in a direction away from the valve seat surface, which are disposed spaced apart in a circumferential direction so as to slide on an inner peripheral surface of the connector housing, each of the guides including a slide portion for sliding on the inner peripheral surface of the connector housing, the slide portion being provided with a support recess extending in the axial direction; one axial end portion of the compression spring being received in the support recess, and the other axial end portion thereof being supported in a spring bearing formed on an inner peripheral surface of the connector housing, and wherein a radially inward portion on a radially inward end of the slide portion with respect to the support recess has integrally a displacement preventing portion, the displacement preventing portion extending in a direction away from the valve seat surface, such that the radially inward portion extends longer than a radially outward portion on a radially outward end of the slide portion with respect to the support recess, in the direction away from the valve seat surface.