Quick open and quick close electric cut-off valve

Abstract

The utility model relates to a quick open and quick close type electric stop valve, characterized in that: a motor is sealingly installed inside a reduction gearbox cover, the motor is not directly mechanically connected with a valve seal, the top of the motor is a transition plate, a gear set and a driving gear are arranged on the transition plate, and the motor output shaft drives the gear set to act; the driving gear is installed with a permanent magnet, the motor drives the driving gear and the permanent magnet to rotate through the gear set; the lower part of the reduction gearbox cover is a valve cavity arranged in isolation, a guide groove for guiding the valve seal is arranged below the reduction gearbox cover in the valve cavity, the upper part of the valve seal is arranged with an iron sheet, the valve seal is arranged with a compression spring outside, and the compression spring is located between the valve seal and the reduction gearbox cover. The utility model fully utilizes the principle that the magnetic force of the permanent magnet is inversely proportional to the cube of the distance, combines with the spring force to control the opening and closing of the valve, makes the valve achieve the purpose of quick opening and quick closing, avoids the corrosion of the motor, and well solves many technical problems existing in the prior art.

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