Self-cleaning pressure regulator

Abstract

The invention discloses a self-cleaning pressure regulator which comprises a lever and a valve clack. The valve clack can only be movably arranged on a shell. The middle portion of the lever is hinged to the shell. A long slot is formed in one end of the lever. A hinge pin fixedly connected to the upper end of the valve clack is arranged in the long slot in a matched mode. The other end of the lever is movably connected to a drive rod, and the drive rod is connected to a leather bag. A cavity communicating with a pressure-regulated environment is defined by the lower side face of the leather bag and the shell. A tray is fixedly connected to the upper side face of the leather bag, and a spring is arranged on the tray. The spring is pressed by a regulating plug screw which is screwed to the shell. The valve clack is composed of a valve clack head and a valve rod. The valve rod is composed of a first rod section and a second rod section. The first rod section is formed on the valve clack head integrally, one end of the second rod section is connected with the lever, and the middle of the second rod section is in sliding fit with the shell. The other end of the second rod section and the first rod section are hinged through a spherical joint. The self-cleaning pressure regulator has the beneficial effects that the valve clack of the pressure regulator has the self-cleaning function, the pressure regulation effect is good, and performance is reliable.

Description

technical field [0001] The patent of the present invention relates to a pressure regulating component, especially a self-cleaning pressure regulator. Background technique [0002] A pressure regulator is a valve adjustment device for adjusting fluid pressure. The pressure regulator usually controls the fluid flow by adjusting the size of the flow section of the valve port to achieve the purpose of pressure adjustment. The existing pressure regulator changes the size of the flow section by changing the distance between the valve core and the valve port, and the disc of the pressure regulator drives the valve core to move through the pressure regulating mechanism to realize the distance change. A sealing pad is provided on the front end of the valve disc, and the sealing pad is used to block to shut off the pressure regulator. In order to ensure the sealing effect, the end face of the valve port and the surface of the sealing gasket are required to have a high degree of clean...

AI Technical Summary

Problems solved by technology

However, during the working process, because the dust in the gas is easy to accumulate on the sealing surface, especially some electrostatically charged dust is more likely to accumulate on the soft non-metallic sealing gasket, when the regulator is in a non-working state, the accumulated hard Impurities can easily cause pressure damage to the gasket and affect the pressure regulation effect

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