Water switch control valve

• Main Authors: SUN XUDONG, TANG QUNGUO
• Format: Patent
• Language: Chinese; English
• Published: 12.12.2012
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The invention provides a water switch control valve which mainly comprises a main valve core, a main valve body, a valve bonnet, a pilot valve core and a pilot valve body. The pilot valve body is mounted between the main valve core and the valve bonnet, the pilot valve core penetrates through the valve bonnet to press the pilot valve body, the main valve core, the pilot valve body and the main valve body form a pilot valve loop, and the pilot valve core controls on and off of the pilot valve loop. A damping hole is arranged in the pilot valve loop, positioned on the main valve core and communicated with an upper chamber and a lower chamber of the main valve core. The water switch control valve of a pilot structure can be opened and closed more stably, the main valve core is of a flat valve structure, the pilot valve body is of a cone valve structure, and thereby the water switch control valve is good in sealability. Moreover, differential pressure formed in front of and in back of the damping hole acts on the