Gas stopcock

Abstract

A gas plug valve comprises a valve body, a valve element and a valve rod; the valve element is located in the valve body, a valve cover is fixed to the end of the valve body, the outer side of the valve element or valve rod is further sleeved with a damping mechanism, and the damping mechanism comprises a first friction part and a second friction part; one of the first friction part and the second friction part and the valve body or valve cover are fixed, and the other one of the first friction part and the second friction part is fixed circumferentially relative to the valve rod or valve element and is movable axially relative to the valve rod or valve element; and the first friction part and the second friction part have the tendency of tight attaching all the time, tooth-shaped concave and convex parts which are distributed in the circumferential direction of the second friction part are arranged on the face, opposite to the first friction part, of the second friction part, and protruding blocks which protrude towards the tooth-shaped concave and convex parts and are matched with the tooth-shaped concave and convex parts are arranged on the face, opposite to the second friction part, of the first friction part. The gas plug valve is simple and compact in structure, when the valve rod rotates, the valve rod has the damping friction feeling and is good in hand feeling and accurate in rotary positioning no matter whether the valve rod is pressed down relative to the valve element or not.

Description

technical field [0001] The invention relates to a gas cock valve. Background technique [0002] The cock valve in the gas cooker is a manually operated valve that controls the gas source supply. Ordinary plug valves generally include a valve body with an air inlet channel and an air outlet channel. The valve body is equipped with a rotatable valve core. The valve stem that the valve core rotates, the lower end of the valve stem holds the spring that keeps the valve stem moving up and out of the connection with the valve core. To communicate with the large fire hole and the small fire hole of the air inlet passage and the air outlet passage. When in use, the user operates the valve stem through the knob on the operation panel. Generally, the knob is first pressed and turned counterclockwise to drive the valve core to rotate counterclockwise, so that the large fire hole on the valve core and the air intake channel in the valve body At this time, the gas source can be spraye...

AI Technical Summary

Problems solved by technology

In the existing plug valve, when the valve stem is adjusting the size of the fire, the rotation of the valve stem is not damped, and the valve stem can be easily driven to rotate, and the handle is poor. In the event of a fire, it is difficult to accurately control the size of the fire

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