Abstract: A detachable handle device of a fall arrest device includes a casing and a handle. A mounting space is provided in the casing for accommodating a fall arrest body. The casing includes two half casings detachably engaged with each other and having two handle seats to be joined. Each handle seat forms a fixing rod and a handle recess. Two end portions of the fixing rods are joined. The handle recesses are joined to form a handle hole. The handle has a grip and a connecting rod connected to the grip and has a connecting portion. The connecting portion passes through the handle hole and has a through hole. The fixing rods are inserted into two sides of the through hole and the end portions are located in the through hole. In this way, the handle is detachably engaged with the casing for a user to hold.

Abstract: A fall protection device with a brush for cleaning a rope has a housing having an outlet. A fall protection device body and a deceleration device are disposed in the housing. The fall protection device body includes a main shaft fixed in the housing. A rotating hub is disposed on the main shaft. A spiral spring is connected between the main shaft and the rotating hub. A rope is wound around the rotating hub. A braking assembly is combined with a side of the rotating hub. When a rotational speed of the braking assembly is greater than a predetermined rotational speed, the deceleration device engages with the braking assembly. A brush unit having several bristles arranged in a radial manner is fixed in the outlet. When an end of the rope passes through the outlet, the end of the rope is in contact with several inner ends of the bristles.

Abstract: A fall arrest device with a ring connected to a locking tooth is provided. A ring hole and a rope exit are provided on a top and a bottom of a casing. A ring of a ring assembly passes through the ring hole. A bottom end of the ring is engaged with a ring seat. The ring seat is fitted into the top of the casing and is connected to a locking tooth. A main shaft and a rotating drum rotatably fitted around the main shaft are fixed in the casing. A spiral spring is connected between the rotating drum and the main shaft. A rope is wound around the rotating drum to have a plurality of turns and extends from casing through the ring hole. A mounting portion on a side of the rotating drum is engaged with a braking assembly configured to engage with the locking tooth.

Abstract: An electrolyte composition including an aluminum salt, an ionic liquid, and a phthalocyanine coordination compound is provided. The anion of the aluminum salt is F?, Cl?, Br?, I?, BF4?, PF6?, [(CF3SO2)2N]?, CF3SO3?, NO3?, CH3CO2?, SO42?, C2O42?, or [B(C2O4)2]?. The ionic liquid has a structure as shown in formula (I) in the specification. The phthalocyanine coordination compound contains a divalent metal ion. In the electrolyte composition, the weight of the aluminum salt is greater than that of the ionic liquid, and the weight of the ionic liquid is greater than that of the phthalocyanine coordination compound. An aluminum battery containing the electrolyte composition is also provided.

Abstract: A rope grab includes a housing. A rope seat portion having a rope groove and an accommodating portion are disposed on the housing. A cam member, a locking member that could return after rotation, and a linkage member are pivotally connected to the accommodating portion. The cam member clamps a rope placed in the rope groove. A limiting member is disposed in the accommodating portion and could move back and forth towards the rope seat portion. The limiting member has a limiting wheel for guiding the rope. The locking member has a first arm for restricting the limiting member from moving backward and a second arm. The linkage member has an abutting end and a safety harness attachment portion. The linkage member could selectively abut against the cam member via the abutting end or pivot to a position to move the second arm.

Abstract: A double retaining ring is provided. Either a first retaining ring or a second retaining ring is connected to a shaft seat and the other of the first retaining ring and the second retaining ring is connected to two receiving seats. The shaft seat has an axial hole. Each receiving seat has two fixing arms. An accommodating groove having an opening is formed between the fixing arms. The shaft passes through the axial hole and is inserted into the two accommodating grooves. Two rivet holes are provided on two sides of the shaft. Two rivets respectively pass through the rivet holes and the shaft is fixed to the fixing arms through the two rivets. The two rivets are breakable and the shaft is detachable from the accommodating grooves.

Abstract: A buckle includes a first buckle part, a second buckle part, a connecting section, and a receiving section. The first buckle part has a first body and a ring body, wherein the ring body is pivotally connected to the first body and is rotatable around a rod body. The second buckle part is for releasably connecting to the first buckle part and has a second body. The connecting section extends along an insertion direction. The receiving section is for accommodating the connecting section. The receiving section is disposed on either the first body or the second body, and the connecting section is disposed on the other of the second body and the first body. An angle between the rod body of the first buckle part and the insertion direction is less than 90 degrees.

Abstract: A double retaining ring is provided. Either a first retaining ring or a second retaining ring is connected to a shaft seat and the other of the first retaining ring and the second retaining ring is connected to two receiving seats. The shaft seat has an axial hole. Each receiving seat has two fixing arms. An accommodating groove having an opening is formed between the fixing arms. The shaft passes through the axial hole and is inserted into the two accommodating grooves. Two rivet holes are provided on two sides of the shaft. Two rivets respectively pass through the rivet holes and the shaft is fixed to the fixing arms through the two rivets. The two rivets are breakable and the shaft is detachable from the accommodating grooves.

Abstract: A rope grab includes a housing. A rope seat portion having a rope groove and an accommodating portion are disposed on the housing. A cam member, a locking member that could return after rotation, and a linkage member are pivotally connected to the accommodating portion. The cam member clamps a rope placed in the rope groove. A limiting member is disposed in the accommodating portion and could move back and forth towards the rope seat portion. The limiting member has a limiting wheel for guiding the rope. The locking member has a first arm for restricting the limiting member from moving backward and a second arm. The linkage member has an abutting end and a safety harness attachment portion. The linkage member could selectively abut against the cam member via the abutting end or pivot to a position to move the second arm.

Abstract: An aluminum battery includes a positive electrode, a negative electrode, a separator, and an electrolyte. The separator is disposed between the positive electrode and the negative electrode. The electrolyte is impregnated into the separator, the positive electrode, and the negative electrode. The electrolyte includes aluminum halide, ionic liquid, and an additive, and the additive includes a pyridine compound. The pyridine compound has an electron withdrawing functional group.

Abstract: A multifunctional connector ring has a ring body, wherein the ring body has a hanging hole, two webbing holes and two rope holes; the two rope holes are located between the hanging hole and the two webbing holes; each of the webbing holes has a first long edge, a second long edge, and two short edges connected between the first long edge and the second long edge, wherein a sliding groove is formed by the two short edges of one of the webbing holes respectively; a sliding rod is disposed between the two sliding grooves; the sliding rod has two end portions; each of the sliding grooves is reached in by the two end portions respectively; the sliding rod is slid back and forth along the two short edges, so that the hanging hole is adapted to buckle a buckle; each of the rope holes and each of the webbing holes are adapted to thread ropes and webbings; one of the webbings fits around the sliding rod and is fixed by a clamping of the sliding rod and the first long edge, thereby achieving an effect of a length being

Abstract: A fall arrester includes holder, rotating drum, and braking module. The rotating drum is pivotally installed on the holder, and includes main body and pawl which has first abutting portion and is pivotally provided on setting part. The braking module is fixed to holder, and includes cover, friction plate, and ratchet plate, being coaxially set in order. The ratchet plate has second abutting portion on its periphery. When rotating drum rotates at speed greater than or equal to predetermined rotating speed, and first abutting portion moves to second position to abut against second abutting portion, the cover and ratchet plate rotate relative to friction plate, driven by rotating drum. Additionally, the cover and ratchet plate generate frictional resistance with friction plate respectively to stop the rotating drum. Thus, the braking module of the fall arrester can be replaced thereby enabling provision of a new braking module as an initial condition.

Abstract: A hole anchor has a plug. An anchor shaft and a cord respectively pass through a center and a periphery of the plug. A top end and a bottom end of the anchor shaft respectively have a head and an annular structure. A spring is disposed between the annular structure and the plug. Two side rods of an anchor head assembly are juxtaposed respectively on a left side and a right side of the head. Two sides of each of the side rods respectively have a closed end and an open end. The two closed ends are engaged with each other via a concave-convex structure. A top side of each of the two open ends is pivotally connected to a pin connected to the cord. A pivot unit pivotally penetrates a middle of the two side rods and the head.

Abstract: A fall arrester includes a holder, rotating drum, braking device, and dust cover. The rotating drum is pivotally provided on and within the holder, and includes a main body and at least one pawl; the main body has an accommodating part to be wound by a cable and a setting part. The pawl is pivotally provided on the setting part, and the braking device is fixed to the holder and between the holder and the setting part. When the rotating drum rotates quickly by pull of the cable, the pawl would pivot and make a part thereof abut against a part of the braking device to stop the rotating drum. The dust cover is fixed to the setting part, and thereby prevents dust from affecting the pawl and the braking device located therein, and thus to enhance safe use thereof.

Abstract: A hole anchor has a plug. An anchor shaft and a cord respectively pass through a center and a periphery of the plug. A top end and a bottom end of the anchor shaft respectively have a head and an annular structure. A spring is disposed between the annular structure and the plug. Two side rods of an anchor head assembly are juxtaposed respectively on a left side and a right side of the head. Two sides of each of the side rods respectively have a closed end and an open end. The two closed ends are engaged with each other via a concave-convex structure. A top side of each of the two open ends is pivotally connected to a pin connected to the cord. A pivot unit pivotally penetrates a middle of the two side rods and the head.

Abstract: A connecting device of a retaining ring of a safety belt includes a main body, a bolt, and a locking member. The main body is used with the bolt to form an enclosure or not. The bolt passes through a bolt bore of the main body and has a first teeth portion and a stopper located in a first half part of the first teeth portion. The first teeth portion and the locking member are used to control the bolt to lock or to unlock. The locking member could move between a first position and a second position along an axial direction of the locking member and could rotate around a central axis of the locking member. When the bolt is at a closed position and the locking member is at the first position, a second teeth portion of the locking member is meshed with the first half part. When the bolt is at the closed position and the locking member is at the second position, the second teeth portion is meshed with the second half part.

Abstract: A carabiner includes a retaining frame, wherein each of two opposite sides of the retaining frame has a pivotally connecting portion and an inserting tube, respectively. The inserting tube has an inserted hole inside and is fitted around by a socket portion of a hook-shaped tube of the hook member. A wire rope passes through the hook-shaped tube. A bottom end of the wire rope is inserted into the inserted hole. A nose is engaged with a free end of the hook-shaped tube and a free end of the wire rope. A portion, where the socket portion, the inserting tube, and the wire rope are overlapped, is compressed to fix. The pivotally connecting portion is pivotally connected to a gate member. A top end of the gate member is detachably hooked to the nose. With such design, the weight of the carabiner could be reduced without worsening the safety.

Abstract: A fall arrest connector is used to connect at least a safety belt with a snap hook and a wearable harness for a user to wear. The fall arrest connector includes a retaining ring, a buckle ring, and a breakable connection. The retaining ring, including the first connecting portion, is connected to the wearable harness. The buckle ring, including the second connecting portion, is hooked by the snap hook. The breakable connection connects the second connecting portion and the first connecting portion. When the retaining ring or the buckle ring is pulled by a predetermined external force, the breakable connection is broken to separate the first and the second connecting portion. The retaining ring and the buckle ring could respectively be connected to the substitute protection device, which could provide the user an instant protection when the first connecting portion and the second connecting portion are separated.