Soft-seal valve element of valve

Abstract

The invention relates to a soft-seal valve element of a valve. The soft-seal valve element comprises a connecting tube. The top of the connecting tube is sleeved with a threaded column. A handle is integrally formed at the top of the threaded column. Supports are arranged on the two sides of the connecting tube respectively. A bolt is arranged at one end of each support. The interior of the connecting tube is of a hollow structure. Sliding grooves and threaded grooves are formed in the inner wall of the connecting tube. The threaded grooves are formed above the sliding grooves. A stretchable rod is sleeved with the bottom of the connecting tube. The connecting tube is movably connected with a valve element body through the stretchable rod. According to the soft-seal valve element, as the threaded grooves and the sliding grooves are formed in the inner wall of the connecting tube, the effect of converting rotating pressing into sliding pressing is achieved; as a buffering air bag is arranged, the effect of protecting the stretchable rod and the valve element body is achieved; as an air bag layer is arranged, the effect that the valve element body is pressed to achieve better sealing is achieved; and as an air pressure guide rod and a piston are arranged, the effect of pressing the air bag layer is achieved.

Description

Technical field [0001] The invention relates to the technical field of valve control devices, and more specifically to a valve soft sealing valve core. Background technique [0002] The spool is a valve part that realizes the basic functions of direction control, pressure control or flow control by means of its movement. According to the movement mode, it is divided into rotation type and translation type (radial, facing). According to the shape, it can be generally divided into spherical (ball valve), conical (cock), pie-shaped (butterfly valve and gate valve), dome type (stop valve and check valve), and the spool on the market currently locks water In the process, the water is not tightly locked, and there is water leakage, especially the valve core after a period of use, which is particularly prone to this situation, and the valve core is easy to be damaged during use, which mainly causes the pressure to be too fast , Or the pressure is too high when pressing down. At presen...

AI Technical Summary

Problems solved by technology

According to the shape, it can be generally divided into spherical (ball valve), conical (cock), round cake (butterfly valve and gate valve), and round cover type (globe valve and check valve). During the process, the water lock is not tight, and there is water leakage, especially the valve core after a period of use, which is particularly prone to this situation, and the valve core is easy to be damaged during use, which mainly makes the pressing down too fast , or the pressure is too high when pressing down. Most of the valve cores on the market currently use rubber layers to increase the sealing performance of the valve core. This method is not only consumable, but also easy to damage. When the valve core is damaged, it is also very Difficult to repair, requires return to factory for repairs

Images