Three-way ball valve with replaceable sealing assembly

Abstract

The invention discloses a three-way ball valve with a replaceable sealing assembly which comprises a valve body, a valve handle, a valve ball and a joint. The inner walls of valve gates in the two lateral faces of the valve body and the outer wall of the joint are each provided with a thread, and the threads are matched and connected with one another. Two round through holes perpendicular to each other are formed in the surface of the valve ball. A diversion cavity is further formed inside the valve ball and is shaped like a broken line with only one break angle. A threaded connection piece, a spring and a limiting rod are arranged in a semi-closed small hole in the bottom of a valve handle body, wherein the spring is located between the valve handle body and the limiting rod; the limiting rod is connected with the valve handle body through the threaded connection piece; the threaded connection piece is of a cylinder-shaped cavity structure; and the threaded connection piece and the valve handle body are fixed with a straight slot. By means of the three-way ball valve with the replaceable sealing assembly, the problems that in the prior art, the service life of a ball valve is short, cracks are easily generated, fluid medium leakage is caused consequently, and neither a limiting rod nor a spring can be detached to be replaced are solved.

Description

technical field [0001] The invention relates to a ball valve, in particular to a three-way ball valve with replaceable sealing components. Background technique [0002] There are many valve industry chains in China, but it is not a valve powerhouse. Generally speaking, my country has entered the ranks of the world's valve powers, but in terms of product quality, there is still a long gap between my country and the valve power. The phenomenon of low production concentration in the industry, low research and development capabilities of high-end products matching valves, and low level of manufacturing technology in the valve industry still exist, and the import and export trade deficit continues to expand. There are not many valve companies that can really survive in the market. In order to promote the localization of valves, the China Machinery Industry Federation and the China General Machinery Industry Association have jointly deployed and formulated a valve localization p...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a three-way ball valve with a replaceable sealing assembly, which solves the problem that the ball valve in the prior art has a short service life, and the valve body is prone to cracks under the action of huge pressure, resulting in the leakage of the fluid medium; When the middle limit rod and spring are placed on the valve handle by means of plastic inlaid metal parts, molten plastic easily enters the space required by the spring and limit rod, resulting in the problem that the limit rod and spring are fixed in the valve handle and cannot be replaced

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