A valve stem assembly having a self-compensating seal

Abstract

This utility model discloses a valve stem device with a self-compensating sealing structure, including a valve body connecting part and a mounting cylinder. The mounting cylinder is inserted into the valve body connecting part, and a top seat is provided at the top of the mounting cylinder. The valve stem body is inserted through the upper surface of the top seat, and a fixing frame is slidably connected to the inner wall of the mounting cylinder. This utility model, through the cooperation of components such as the mounting cylinder, top seat, valve stem body, fixing frame, sealing ring, spring, mounting sleeve, mounting groove, and limiting ring, achieves the function of ensuring the sealing between the valve stem and the valve body, improving the sealing structure between the valve stem and the valve body in the prior art. When the sealing ring is worn or deformed, the spring pushes the sealing ring to press tightly against the outer surface of the valve stem body, preventing gaps between the valve stem and the valve body, thereby ensuring the sealing between the valve stem and the valve body, preventing water leakage, avoiding affecting the normal use of the valve, and improving the practicality and durability of the valve stem device.

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