The invention relates to an environment-friendly energy-saving
doorbell with an autonomous power supply function. The environment-friendly energy-saving
doorbell comprises a
barrier layer of a
doorbell frame box, guide grooves, a guide
ridge, a push rod gear, a guide hammer, a bearing with an outer ring in the shape of a circular truncated cone, a bearing gear, a fixed shaft of a power generation
assembly, a base, a convex push rod, a key sleeve, a spring, an annular base plate, a key clamp sleeve, a bolt, a fixing plate, an annular barrier, the doorbell frame box, a spherical contact switch, an oscillating circuit and the like, and is characterized in that the bearing with the outer ring in the shape of the circular truncated cone is arranged at the lower end of the power generation
assembly, the bearing gear is arranged on a slope surface of the outer side of the bearing, the guide grooves are oppositely symmetrically formed in the lower surface of the
barrier layer of the doorbell frame box and the bottom surface of the doorbell frame box, the guide
ridge is arranged between the guide grooves, the guide hammer is arranged between the upper and lower guide grooves and is positioned at one end of the push rod gear, the convex push rod is arranged at the other end of the push rod gear, the push rod gear can be coupled with the bearing gear in pushed procedures, accordingly, the power generation
assembly can be driven to generate power, the spherical contact switch can be turned on when the spherical contact switch which is positioned on the inner rear wall of the doorbell frame box is butted to the guide hammer, and the circuit can be closed and starts to oscillate and produce sound.