Patent ID: 7337801
Filing Date: 2008-03-04
Classification: F16K,Y10T

Abstract:
1. A valve comprising: an outer shell with an interior; an external sliding base assembled inside the interior of the outer shell and having two ends, a recess defined at one end, two outer abutting stubs formed at two opposite sides of the recess, two detents defined in the other end to respectively align the two outer abutting stubs; a resilient body clamped between the outer shell and a middle between the two detents; an internal sliding base engaging the external sliding base and having a sliding portion mounted in the recess in the external sliding base, two inner abutting stubs formed at a bottom of the sliding portion, a central shaft extending from the internal sliding base, and a through hole axially defined in the central shaft; a positioning plate attached between the body and the outer shell and having multiple through holes defined in the positioning plate; a body combined with the outer shell and has a first blind hole and a first positioning groove and a second positioning groove respectively defined at two opposite sides of the first blind hole, wherein each of the first and second positioning grooves has a first penetrating hole and a second penetrating hole; the first positioning groove has two ends defined with a second blind hole and a third blind hole respectively; the second positioning groove has two ends defined with a fourth blind hole and a fifth blind hole respectively; a first passageway communicates the third blind hole and the fifth blind hole; a second passageway communicates with the second blind hole; a third passageway communicates the fourth blind hole; a valve hole contains a first channel and a second channel communicated with the first passageway and the first blind hole respectively; an electromagnetic valve is installed inside the shell to control the valve hole; two membranes respectively engaged the first positioning groove and the second positioning groove on the body, wherein two ends of each of the two membranes respectively have a stop portion to cover the second, third, fourth, or fifth blind hole; and a bottom board rotatably mounted inside the body and having a first face with a first elongated hole, a-second elongated hole, a third elongated hole, a fourth elongated hole and a fifth elongated hole, wherein the second elongated hole extends to a second face on the bottom board, the third elongated hole has a via hole extending to the second face of the bottom board, the fourth elongated is closed; wherein, the two outer abutting stubs on the external sliding base penetrate two corresponding through holes on the positioning plate and each have a distal end to engage the third blind hole and the fourth blind hole on the body; wherein, the two inner abutting stubs on the internal sliding base penetrates two corresponding through holes on the positioning plate and each have a distal end to engage the second blind hole and the fifth blind hole; wherein, the central shaft on the internal sliding base sequentially penetrates one corresponding through hole on the positioning plate and the first blind hole in the body.