Ball vibrations trigger formula gas trip valve

The utility model discloses an ability self -closing's ball vibrations trigger formula gas trip valve during the earthquake mainly overcomes current earthquake safety shut -off valve performance, structural defect. Its characterized in that: vibrations trigger part is equipped with on the valve rod, the hasp is equipped with on the valve body, the flexible retaining member of vibrations trigger part facial make -up, vibrations trigger part have the elasticity retaining member spring action down with the primary importance of hasp locking, and receive spin striking back, overcome the elasticity of elasticity retaining member, with the second place that the hasp breaks away from. The utility model discloses can cut off the gas pipeline fast when the advantage lies in the earthquake, guarantee not reveal, change the reaction sensitivity that vibrations trigger part can be adjusted to the elasticity retaining member of different rigidity presetting the within range, the succinct classics of valve body structure, preparation, equipment, safeguard convenient, with better withstand voltage and antiseep performance occasionally.