Abstract: A fall protection device adapted to be connected to a safety belt is provided, including a frame forming a containing space, a shaft lever provided on the frame, a retard member, and a rotary drum. The retard member is pivotally provided on the shaft lever rotatably, which is received in the containing space, and has a friction surface. The rotary drum is fitted around the retard member, and has an outer surface and an inner surface; the outer surface is adapted to be winded by the safety belt, and the inner surface faces to the friction surface. In a first operating state, the retard member and the rotary drum rotate coaxially. In a second operating state, the rotary drum rotates relative to the fixed retard member. A rotational friction is generated between the friction surface and the inner surface, which slows down the rotational speed of the rotary drum.

Abstract: A fixing device adapted to be fixed on a structure is disclosed, which includes a connecting member, a first fixing plate, a second fixing plate, and a hanging ring. The connecting member has a base, a first bar, a second bar, and a third bar. The first bar and the second bar are respectively engaged with two sides of the base. The third bar is engaged with the base. The first and the second fixing plates respectively have a body adapted to be fixed on the structure, and two sleeves respectively fit around the first bar and the second bar, whereby the first and the second fixing plates are pivotable relative to the connecting member. The hanging ring is engaged with the third bar in a rotatable manner. Whereby, the first and the second fixing plates could be engaged with the structure to provide a firm supporting point.

Abstract: A safety belt buckle includes a base, a latch, two positioning members, and two elastic members. The base is formed by two symmetrically combined cases, wherein each case includes a first metal core partially clad in a first insulating layer. The latch includes a second metal core, a second insulating layer, and a tongue adapted to insert into a chamber of the base. The two positioning members are pivotally provided on the base and partially located in the chamber. When each positioning member is moved to the first position, a stopper thereof confines the tongue in a locking position to prevent the latch from being separated from the base; when each positioning member is moved to the second position, the stopper thereof is away from the tongue, allowing the latch to be disengaged from the base. The two elastic members push the positioning members toward the first position.

Abstract: A safety belt buckle, which includes a buckle member, a hook, a stop member, a latch member and a release button, wherein the latch member has a tongue plate which enters a chamber of the buckle member through a lateral opening of the buckle member, and pushes the stop member to a predetermined position; when the stop member stays at the predetermined position, the hook is restricted by the stop member, and stopped at another predetermined position to engage the tongue plate, which makes the latch member unable to separate from the buckle member. By pushing the release button connected to the stop member, the hook can pivot unrestrictedly, therefore the tongue plate is no longer engaged by the hook, and the latch member and the buckle member can separate from each other.

Abstract: A safety belt buckle includes a buckle member, a hook, a stop member, and a latch member. The buckle member has a chamber therein, which is communicated with an opening. The latch member has a tongue plate which is inserted into the chamber through the opening. The stop member and the hook are provided in the chamber, and the latch member is not able to be detached from the buckle member because that the stop member stops the hook from moving to engage the tongue plate. By pressing a press button on the stop member, the stop member is moved to a predetermined position, and no longer stops the hook from disengaging the tongue plate. The latch member is able to be detached from the buckle member at this time.

Abstract: A safety hook includes a hook member, a latch member, and a switch, wherein the both the latch member and the switch are pivoted on the hook member, and the latch member is moved between a lock position and an unlock position by pressing the switch. The hook member is covered by a insulating member, and the insulating member includes two insulating layers with different colors to warn the user by the color change if the outer insulating layer is worn. The latch member and the switch are covered by insulating members as well to avoid electric shock.

Abstract: A safety belt buckle includes a buckle member, a hook, a stop member, and a latch member. The buckle member has a chamber therein, which is communicated with an opening. The latch member has a tongue plate which is inserted into the chamber through the opening. The stop member and the hook are provided in the chamber, and the latch member is not able to be detached from the buckle member because that the stop member stops the hook from moving to engage the tongue plate. By pressing a press button on the stop member, the stop member is moved to a predetermined position, and no longer stops the hook from disengaging the tongue plate. The latch member is able to be detached from the buckle member at this time.

Abstract: A safety belt buckle, which includes a buckle member, a hook, a stop member, a latch member and a release button, wherein the latch member has a tongue plate which enters a chamber of the buckle member through a lateral opening of the buckle member, and pushes the stop member to a predetermined position; when the stop member stays at the predetermined position, the hook is restricted by the stop member, and stopped at another predetermined position to engage the tongue plate, which makes the latch member unable to separate from the buckle member. By pushing the release button connected to the stop member, the hook can pivot unrestrictedly, therefore the tongue plate is no longer engaged by the hook, and the latch member and the buckle member can separate from each other.