A three-way ball valve

Abstract

The invention belongs to the technical field of valves, and is specifically a three-way ball valve, including a valve body; a valve ball is rotatably connected to the valve body, and a valve seat is provided at the sliding connection part between the valve body and the valve ball; a valve stem is fixedly connected to the top of the valve ball , the No. 1 hole opened in the valve stem is slidingly connected with a spool; the valve ball is provided with a No. 2 hole corresponding to the valve seat, and the No. 2 hole is connected with the No. 1 hole; the two ends of the No. 2 hole are sealed and connected with arc-shaped shrapnel; No. 1 hole is provided with a chute near the top, a limit ring is provided at the corresponding position of the spool and the chute, and a spring is set on the spool above the limit ring; a through groove is opened on the top of the valve stem; There is a handle, the middle part of the handle is rotationally connected with the through groove through the revolving pin, and the revolving pin deviates from the center of the valve stem; the handle is provided with a round hole near the center of the valve stem, and a round rod is slidingly connected in the round hole, and the round rod and the sliding column The top is fixed; the invention reduces the friction between the shrapnel and the valve seat by pressing down the handle, and increases the opening efficiency of the ball valve.

Description

technical field [0001] The invention belongs to the technical field of valves, in particular to a three-way ball valve. Background technique [0002] As a pipeline valve, the three-way ball valve is mainly suitable for the application conditions of switching, reversing, and diversion of gas or liquid media. The gas or liquid medium generally flows in from one side of the axial port of the ball valve, and flows out from the other axial port and / or the axial vertical side port, and the direction of outflow can be between the other axial port and the axial vertical side port. to switch between. [0003] There are T-type and L-type three-way ball valves. The T-shape can make the three orthogonal pipelines communicate with each other and cut off the third channel to play the role of diversion and confluence. The L three-way ball valve type can only connect two pipelines that are orthogonal to each other, and cannot maintain the interconnection of the third pipeline at the same...

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of the existing technology and solve the need for valve sealing in the prior art, a certain pressure is required between the valve ball, the valve seat and the seal, so as to ensure a good seal of the valve, but due to the valve ball and the seal The larger friction force makes it difficult to open and close the valve, which requires a lot of physical effort and affects the opening and closing efficiency of the valve. A three-way ball valve proposed by the present invention

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