Ball valve with sealing performance improving function

Abstract

The invention discloses a ball valve with the sealing performance improving function. The ball valve comprises a valve body, wherein a cavity is formed inside the valve body. An inlet and an outlet are formed in the two ends of the valve body, and both the inlet and the outlet are communicated with the cavity. A valve ball is arranged in the cavity. A valve ring is arranged between the inlet and the valve ball. A valve ring is arranged between the outlet and the valve ball. The valve rings are fixedly connected with the corresponding end face of the inlet or the corresponding end face of the outlet. Both the axis of the inlet and the axis of the outlet penetrate through inner rings of the corresponding valve rings. One ends, away from the valve ball, of the valve rings inwards sink to form grooves. Springs are arranged in the grooves. One ends of the springs are fixedly connected with the bottom surfaces of the grooves, and the other ends of the springs are fixedly connected with the corresponding end face of the inlet or the corresponding end face of the outlet. According to the ball valve, the springs are arranged in the horizontal direction, the valve rings can tightly make contact with the valve ball through elasticity of the springs, sealing efficiency is maintained, and the problems that after an existing ball valve is used for a long time, liquid leakage is easily caused, and sealing failure is caused are solved.

Description

technical field [0001] The invention relates to a ball valve based on improved sealing, which belongs to the sealing component. 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. The next few years will be a period of high-speed shocks in the valve industry. The direct consequence of this high-speed shock is the expansion of the polarization trend in the valve cabinet brand camp. Basic parts have become a short board that restricts the development of my countr...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the above-mentioned existing ball valves are prone to liquid leakage and sealing failure after long-term use, and a ball valve based on improving sealing performance is designed. The elasticity of the spring keeps the valve ring and the valve ball in close contact and maintains the sealing efficiency, which solves the problem that the existing ball valve is prone to leakage and seal failure after long-term use

A spring is arranged on the side wall of the valve ring, and the valve ring is pressed against the valve ball by the elasticity of the spring, so that the valve ring and the valve ball maintain seamless contact, and the valve ball will not drive the movement of the valve ring when the valve ball rotates. , so that the sealing state of the ball valve can be maintained, which solves the problem that the existing ball valve is prone to leakage and sealing failure after long-term use

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