Easy to Assemble Anti-dropping Device

摘要

An easy to assemble anti-dropping device includes a supporting rack which has a chamber and is installed a central axle crossing the chamber which is for placing a circle of a rotary drum circled by a rescue cord, a rotor installed a bias rotary member, and a turbination spring, and has the central axle pass through the rotary drum and the central opening of the rotor, is characterized in that the supporting rack is formed from a upright board having a first hole, a lateral board extended from top side of the upright board, and a breaking frame detachably installed on the free end of the lateral board, wherein the breaking frame has a foramen for the bias rotary member to buckle in by instantaneous rotary acceleration and a covering board opposite the upright board and sealed off on the outer side of the foramen, wherein the covering board has a second hole which matches with the first hole, so as to allow the first hole of the upright board or the second hole of the breaking frame to separately let the central axle to passingly catch to allow the central axle to pass through the central opening of the rotor and the central hole of the rotary drum in a manner of maximum moving allowance, and to eventually set up the breaking frame on the lateral board, which structural setting can certainly greatly improve the assembling efficiency of an anti-dropping device.

主权项

1. An anti-dropping device, which comprises:
a supporting rack, which is formed from an upright board having a first hole, a lateral board extended from a top side of said upright board, and a breaking frame detachably installed on a free end of said lateral board, to define a chamber, wherein said breaking frame has a foramen concentric with said first hole, a covering board sealing off an outer side of said foramen, wherein said covering board has a second hole matching said first hole; a rotary drum accommodated in said chamber, circled by a rescue cord, and piercingly set a central hole in said rotary drum; a rotor accommodated in said chamber, affixedly placed on a side of said rotary drum, piercingly set a central opening in said rotor, and having a bias rotary member which withdraws for positioning at any time; a turbination spring accommodated in said chamber and serialized in the middle of said rotary drum and said supporting rack to provide said rotary drum a potential to roll said rescue cord back at any time; and a central axle passing through said first hole, said turbination spring, said central hole of said rotary drum, said central opening of said rotor, said crossing chamber of said second hole for allowing said rotary drum and said rotor to roll by said central axle to deal with the instant stretching of said rescue cord and to put a centrifugal force on said bias rotary member, so as to let said bias rotary member to be fixated by said foramen of said breaking frame.