Abstract: The present invention mainly aims to rebuilt the structures of a hook body, valve and control handle and the link relationship thereof. The outer surface of two shrouds of the control handle are respectively stamped with a depression adapted project a similar limit block out of the inner surface of each shroud, the limit block having upper, lower blocking surfaces opposite to each other vertically, and the upper, lower blocking surfaces are further controlled to be perpendicular to the shroud, thereby allowing them to transfer stably the stress between the hook body and valve when withstanding the stress due to the inadvertent opening of the valve so that the valve and limit blocks are not deformed easily, have a longer use and enhance the overall use safety greatly.

Abstract: A lockable anti-fall catch connector includes a catch member, a locking shaft, and a locker unit. The catch member includes a retention arm and two sleeve members provided at two ends of the retention arm, wherein a first locking portion is provided at one of the sleeve members. The locking shaft is slidably extended between the sleeve members, wherein the locking shaft has a second locking portion detachably coupled with the first locking portion to lock up the locking shaft at the retention arm. The locker unit includes a locking element slidably coupled at one of the sleeve members to engage with the locking shaft, wherein after said locking element is disengaged with the locking shaft, the locking shaft is actuated to disengage the second locking portion with the first locking portion in order to slide the locking shaft with respect to the catch member.

Abstract: A lockable anti-fall catch connector includes a catch member, a locking shaft, and a locker unit. The catch member includes a retention arm and two sleeve members provided at two ends of the retention arm, wherein a first locking portion is provided at one of the sleeve members. The locking shaft is slidably extended between the sleeve members, wherein the locking shaft has a second locking portion detachably coupled with the first locking portion to lock up the locking shaft at the retention arm. The locker unit includes a locking element slidably coupled at one of the sleeve members to engage with the locking shaft, wherein after said locking element is disengaged with the locking shaft, the locking shaft is actuated to disengage the second locking portion with the first locking portion in order to slide the locking shaft with respect to the catch member.

Abstract: An anti-fall device includes an outer casing which has a receiving chamber, at least a window formed at a sidewall of the outer casing to communicate with the receiving chamber, and a braking member adjacent to the window, and a braking assembly which includes at least a centrifugal actuator supported within the receiving chamber to be moved to selectively engage with the braking member between a locked position and an unlocked position. The centrifugal actuator is aligned with the window, such that the centrifugal actuator of the braking assembly is visibly seen through the window to check whether the centrifugal actuator is actuated at the locked position or the unlocked position.

Abstract: 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 centr

Abstract: A safety hook including a hook body, a latch member, a locking portion, and a control member is disclosed. The latch member is capable of rotating about a guide pin and swinging along a guide slot in an arc-shaped path to open or close a hook opening, wherein when the latch member locks and closes the hook opening, the locking portion and the guide pin form a locked chain structure to bear a lateral impact force on the latch member. When the latch member rotates about the guide pin and swings along the guide slot in an arc-shaped path to open or close the hook opening, the control member is capable of driving the locking edge to release the locking portion, so as to open the hook opening by a swinging movement of the latch member.