Two-piece ceramic ball valve

Abstract

The invention provides a two-piece ceramic ball valve. The two-piece ceramic ball valve comprises a valve body; a side cover is movably installed on one side of the valve body, and bolts are movably installed at the corner positions between the valve body and the side cover; a fixing seat is movably installed on the outer surface of the upper end of the valve body, a plate seat is movably installed at the middle position of the outer surface of the upper end of the fixing seat, and a pull rod is fixedly installed on one side, away from the side cover, of the plate seat; ring flanges are fixedly installed on one side of the side cover and one side, away from the side cover, of the valve body; and a valve ball is movably installed in the valve body, a clamping groove is formed in the outer surface of the upper end of the valve ball, and a valve rod is arranged in the clamping groove in a penetrating manner. According to the two-piece ceramic ball valve, sealing seats can be squeezed towards the valve ball when worn, the airtightness of the ball valve is ensured, and leakage is avoided; dirt adhering to the surface of the valve ball can be conveniently removed, and the influence on water quality is reduced; and the ball valve can be automatically locked after being opened or closed, and it is effectively avoided that as the pull rod is touched by mistake, normal operation of the ball valve is affected.

Description

technical field [0001] The invention relates to the technical field of ball valves, in particular to a two-piece ceramic ball valve. Background technique [0002] Two-piece ball valve and gate valve belong to the same type of valve, the difference is that its closing part is a sphere, and the sphere rotates around the centerline of the valve body to achieve opening and closing; [0003] The deformation of ceramic materials is very small, and it has a much higher bonding strength than metals. Generally, the crystal ions that make up ceramic materials have small ionic radii, high ionic valence, and large coordination numbers. These properties determine the tensile strength of ceramic materials. The compressive strength, elastic modulus, hardness, etc. are all very high. Using the wear resistance and corrosion resistance of ceramics to make wear-resistant and corrosion-resistant parts instead of metal materials is one of the important development directions of the high-tech mat...

AI Technical Summary

Problems solved by technology

[0004] However, there are certain defects in the existing two-piece ceramic ball valve: 1. The mutual friction between the valve ball and the sealing seat will cause loss, which will reduce the sealing performance of the sealing seat to the valve ball; 2. The surface of the valve ball will adhere to dirt. Dirt is difficult to clean, and long-term accumulation will affect water quality; 3. The lever that controls the switch of the ball valve is not equipped with a locking mechanism. In a working environment with dense personnel and strong mobility, people are easy to touch the lever by mistake, resulting in unnecessary switching of the ball valve

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