JP1761829S - pilot operated check valve - Google Patents

Abstract

As shown in the "reference drawing," the article according to this design has an input port, an output port, and a pilot port, and the output port is connected to a fluid pressure device such as a solenoid valve. This is for supplying and discharging compressed fluid to and from the input port and the output port. Normally, the flow from the input port to the output port is allowed, while the flow from the output port to the output port is normally allowed. Flow towards the input port is blocked. When pilot air is input from the pilot port in an emergency or other necessary situation, the flow from the output port to the input port is allowed, thereby eliminating the compressed air remaining in the fluid pressure equipment. Fluid can be exhausted from the output port through the input port and the like. In addition, as shown in the "reference drawing," this article includes a first body that extends in the first axial direction and has a base end and a distal end at both ends thereof, and a first body that is connected to the base end of the first body and that is connected to the base end of the first body. a second body extending in a second axis direction perpendicular to the first axis and having the output port at one end; and a joint portion externally fitted onto the first body so as to be rotatable around the first axis. A, a joint part B disposed on the proximal end side of the joint part A in the first axial direction and also externally fitted to the first body so as to be rotatable about the first axis, and the second joint part B. The joint part C is fitted onto the body so as to be rotatable around a second axis, and connects the base end of the first body to the second body. In the joint part A, the pilot port extends integrally in a direction perpendicular to the first axis, and in the joint part B, the input port extends integrally in a direction perpendicular to the first axis. has been done.