Internal positioning utility-type valve for pipeline

Abstract

The invention discloses an internal positioning utility-type valve for a pipeline. The internal positioning utility-type valve comprises a main valve body, a valve rod and a handle. The main valve body is internally provided with a ball valve core, a flat shaft is arranged above the ball valve core, and a circular ring is arranged above the flat shaft; the circular ring is internally provided with an inner ring, the inner ring is embedded in an outer ring, a positioning hole is formed in the lower portion of the ball valve core, and a positioning column is installed below the positioning hole; the left side of the ball valve core is connected with a valve cap, the left side of the valve cap is connected with a valve chamber, and the valve rod is installed above the circular ring; the handle is installed above the valve rod, a column connecting device and the handle are connected to the upper portion of the valve rod, and the column connecting device is arranged in the handle; and the handle is provided with a hand-holding part, bolts are arranged on the upper portion of the column connecting device, are arranged in the handle and are lower than the hand-holding part, and the positioning hole and the positioning column are integrally connected. The internal positioning utility-type valve has the advantages that the improved ball valve is further low in production cost, convenient to manufacture, high in rotary positioning precision and the like.

Description

technical field [0001] The invention relates to a mechanical pipeline valve, in particular to a practical internal positioning valve for pipelines. Background technique [0002] The valve has the advantages of small fluid resistance, compact structure, reliable sealing, convenient operation and simple maintenance, so it is widely used in petroleum, chemical industry, power generation, aviation and water heating, etc., especially the manual ball valve directly connected to the pipeline at present, because of its structure Simple and easy to operate, it is the most widely used valve type in daily life; [0003] At present, the limit structures of conventional manual ball valves are all set on the valve body, and the 90° rotation opening and closing function of the ball valve is realized through the cooperation of the handle and the valve body. The cooperation between the handle and the limit structure of the valve body is usually the cooperation between the blank surface of t...

AI Technical Summary

Problems solved by technology

The cooperation between the handle and the limit structure of the valve body is usually the cooperation between the blank surface of the valve body and the blanking edge of the handle, and there is a large error between the two; moreover, the valve body must be shaped by a mold to make a special shape, and the handle also needs to be set. The specific shape and the mutual cooperation between the two can realize the limit function. The production of the mold and the stamping of the handle will increase the production cost and prolong the production cycle

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