Abstract: A pipe connector has a main body, a sleeve and elastic claws. The reducing flanged pipe of the main body is linked to several guiding lugs with a guiding surface. Several inclined pushing discs are formed on the inner wall of the sleeve and abutted with the guiding lugs. A radiative swinging baseline facing the inner wall of the sleeve is formed at the center of the main body. With the lowering force applied to the sleeve, the guiding lug can be elastically accumulated to swing inwards or outwards on the swinging baseline under the guidance of the inclined pushing disc. When the force applied by the user is released, the sleeve will be resumed to move up with the resetting of the guiding lug. The pipe connector of the present invention is characterized by simple construction and more stable guidance with improved applicability and industrial benefits.