Ball valve
AssigneeZhejiang Dunan Artificial Environment Co., Ltd.
InventorsZhouyang Shou, Yongbin Xuan
Life of this patent
Estimating the term…
Abstract
The present application relates to a ball valve. The ball valve includes a valve body, an end cover and a valve rod. The end cover is installed on the valve body, and one end of the valve rod is rotatably installed in the valve body, the other end of the valve rod extends out of the valve body through the end cover. A limiting member is arranged on an inner peripheral wall of the end cover, and the valve rod is capable of being limited by the limiting member to allow a maximum rotating angle of the valve rod in the end cover to be 90 degrees.
Claims8
A ball valve, comprising a valve body, an end cover and a valve rod, wherein the end cover is installed on the valve body, and one end of the valve rod is rotatably installed in the valve body, the other end of the valve rod extends out of the valve body through the end cover;
- wherein a limiting member is arranged on an inner peripheral wall of the end cover, the valve rod is capable of being limited by the limiting member to allow a maximum rotating angle of the valve rod in the end cover to be 90 degrees;
- the limiting member partially protrudes from the end cover;
- a rotating radius of the valve rod is defined as R, a half of a thickness of an end of the valve rod extending out of the valve body is defined as L, and a width of an end surface of the limiting member for abutting against the valve rod is defined as I, wherein, the radius R of rotation of the valve rod, the half L of the thickness of the end of the valve rod extending out of the valve body and the width I of the end surface of the limiting member for abutting against the valve rod satisfy following formula:
- I=√{square root over (R2−L2)}−L.
Dependencies are inferred from the claim text.