Superlarge ball valve

Abstract

The invention discloses a superlarge ball valve and belongs to the technical field of ball valves. The superlarge ball valve comprises a valve body; water passing pipes are arranged on the left side and the right side of the valve body; a limiting pipe is arranged on the top of the valve body; a valve rod is movably inserted in an inner cavity of the limiting pipe; the bottom of the valve rod is connected with a valve ball; a bearing seal ring is arranged at the junction of the valve rod and the inner cavity of the limiting pipe; fastening devices are arranged at the left inner wall and the right inner wall of the valve ball; each fastening device comprises an insert arranged in the inner wall of the ball valve; inner cavities of the inserts are movably provided with ejector rods; extensible springs are arranged at the ends, movably arranged in the inner cavities of the inserts, of the ejector rods; the other ends of the extensible springs are connected with the inner walls of the inserts; and fastening plates are arranged at the other ends of the ejector rods and jacked into the water passing pipes by the ejector rods through the extensible springs. As the fastening plates are movably clamped in the water passing pipes, it can be ensured that when water impacts the valve ball in the flowing process, connection between the valve ball and the water passing pipes is prevented from being unstable, and therefore, it is ensured that water leakage does not occur.

Description

technical field [0001] The invention relates to the technical field of ball valves, in particular to an extra large ball valve. Background technique [0002] The ball valve rotates in the valve body through the valve stem, so that the water outlet on the valve ball is matched with the water outlet on the water pipe, so as to complete the opening and closing of the water pipe. In the process of driving the valve ball to move, after the valve ball is matched with the water pipe, the valve ball is greatly impacted by the water flow, and the connection between the valve ball and the water pipe will be unstable, making the connection between the water pipe and the valve ball Gaps are likely to appear between them, causing water leakage. To this end, we propose an extra large ball valve. Contents of the invention [0003] The object of the present invention is to provide an extra large ball valve to solve the problems raised in the above background technology. [0004] In ord...

AI Technical Summary

Problems solved by technology

In the process of driving the valve ball to move, after the valve ball is matched with the water pipe, the valve ball is greatly impacted by the water flow, and the connection between the valve ball and the water pipe will be unstable, making the connection between the water pipe and the valve ball There are gaps between them, causing water leakage

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