Abstract: An electromotive tool includes a housing, a motor, an electric control device, and a circuit device connected to the electric control device in a parallel manner. The electric control device includes a battery set. The circuit device includes an electric double layer capacitor connected to the battery set of the electric control device in a parallel manner. Thus, the electric double layer capacitor supplies a relatively higher electric current to the motor so that the output shaft of the motor produces a relatively higher torque instantaneously.

Abstract: A luminous alarm device comprises an illumination body, a plurality of legs, a sliding ring, a positioning toggle, and a retaining seat. One end of the leg is formed with a first buckle and another end thereof has a rib. A distal end of the rib is extended with a second buckle. The rib bends with respect to the leg. The sliding ring is mounted at an upper edge of the cylinder. A sliding ring is slidable along the cylinder. A plurality of first slots are installed at the sliding ring for buckling the first buckles. The retaining seat is firmly secured to the cylinder. An inner wall of the retaining seat is formed with a plurality of second slots for buckling the second buckles. When the sliding ring slides along the cylinder, the legs will be folded or expanded so as to use or store the luminous alarm device.

Abstract: A high torsion electromotive opener comprises a casing, an electrical control unit, a power supply and a lamp. The electrical control unit is formed by a motor and a connecting unit. The motor receives power from the power supply to drive the connecting unit to rotate. The power supply includes at least one of battery, an electric dual layer capacitor and a charge seat which are installed in the casing. The batteries are connected to the electric dual layer capacitor in parallel and the charge seat is conductive to the batteries. The charging and discharging of the electric dual layer capacitor is physical reaction and thus current flow is not limited. The electric dual layer capacitor is charged or discharged transiently. When the power supply drives the electrical control unit to rotate, the electric dual layer capacitor will charge the electrical control unit transiently so as to have a large torsion.

Abstract: A luminous alarm device comprises an illumination body, a plurality of legs, a sliding ring, a positioning toggle, and a retaining seat. One end of the leg is formed with a first buckle and another end thereof has a rib. A distal end of the rib is extended with a second buckle. The rib bends with respect to the leg. The sliding ring is mounted at an upper edge of the cylinder. A sliding ring is slidable along the cylinder. A plurality of first slots are installed at the sliding ring for buckling the first buckles. The retaining seat is firmly secured to the cylinder. An inner wall of the retaining seat is formed with a plurality of second slots for buckling the second buckles. When the sliding ring slides along the cylinder, the legs will be folded or expanded so as to use or store the luminous alarm device.

Abstract: A combination tool kit is disclosed to include an elongated casing, a light emitting circuit assembly installed in the casing and controlled to emit light for illumination, the casing having a coupling head, the coupling head having a receiving hole adapted to hold a hex head socket or one of a set of cutting tools and a locating hole across the receiving hole, and a lock control member supported on a spring member in the locating hole and adapted to lock one cutting tool in the locating hole for working.

Abstract: A box and ratchet wheel arrangement includes a wrench body with a box at one end, a ratchet wheel mounted in the box and adapted to hold the workpiece in a serrated center coupling hole thereof, a stop block mounted in the box and forced by a spring member to engage the ratchet wheel and to control the direction of rotation of the ratchet wheel, and a retainer ring of resilient metal mounted in an outside annular groove of the ratchet wheel, the retainer ring having a plurality of protruded retaining portions inserted through respective radially extended through hole of the ratchet wheel and adapted to hold down the workpiece in the serrated center coupling hole of the ratchet wheel.