Ball valve with opening and closing status indication function

Abstract

The invention discloses a ball valve with an opening and closing state indicating function. The ball valve comprises a rotary handle (2), a valve main body (3) and a folding-fan-shaped telescopic element (4), wherein the rotary handle (2) is provided with a cap (1); a rod (5) vertically and upwards extended is arranged in a position, beside the cap (1), on the valve main body (3); the rod (5) is positioned right under the handle (2) when the ball valve is in a closing position; one end of the telescopic element (4) is connected with the rod (5) through a side rod (6); the other end of the telescopic element (4) is connected with the handle (2); the telescopic element (4) is provided with four folding units; when the ball valve is in a full opening state; the telescopic element (4) is fully unfolded; a round hole (7) is shown in the center. By the form of the telescopic element (4), the opening and closing state of the ball valve is iconically and intuitively known; the perception of people with visual impairment through touch is facilitated.

Description

technical field [0001] The invention belongs to valves, and more specifically relates to a ball valve with an opening and closing state indication function. Background technique [0002] The opening and closing of the existing ball valves is achieved by turning the handle counterclockwise or clockwise at an angle of 90 degrees. It is fully open when the position of the handle is at right angles to the outlet pipe, which is inconsistent. Also, although many people often use it, once they are asked about the open and closed state, they cannot tell clearly. However, in actual life or production, ball valves are often required to have the function of opening and closing state indication. For example, when the upstream of the logistics system unexpectedly stops the transportation, there is no liquid flowing out of the downstream, and the ball valve in the fully open state is easily mistaken for being in the closed state. As a result, if the gate is not closed, once the upstream ...

AI Technical Summary

Problems solved by technology

[0002] The opening and closing of the existing ball valves is achieved by turning the handle counterclockwise or clockwise at an angle of 90 degrees. It is fully open when the position of the handle is at right angles to the outlet pipe, which is not consistent. Also, although many people often use it, once they are asked about the open and closed state, they cannot tell clearly

However, in actual life or production, ball valves are often required to have the function of opening and closing state indication. For example, when the upstream of the logistics system unexpectedly stops the transportation, there is no liquid flowing out of the downstream, and the ball valve in the fully open state is easily mistaken for being in the closed state. As a result, if the customs are not closed, once the upstream transportation resumes, materials will often be wasted or safety accidents will occur

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