Abstract: A lock handle and rotating shaft combination mechanism includes a handle having a tubular socket extending axially. The socket includes a connection portion and a protrusion. A tubular rotating shaft includes a securing member formed radially to the rotating shaft. The securing member is located corresponding to the connection portion. A guiding slot is defined axially in the distal end of the rotating shaft. When the protrusion is engaged with the guiding slot, the rotating shaft expands radially outward, and the securing member is engaged with the connection portion to connect the handle to the rotating shaft. No tool is required during the assembling processes to reduce time for assembling the combination mechanism.

Abstract: An auxiliary lock includes an inside housing mounted to a lock cylinder and a first flange extends axially from one of two ends of the inside housing. A mounting plate is mounted to the lock cylinder and contacts the inside housing. The mounting plate includes a second flange which is mounted to outside of the first flange of the inside housing. The lock cylinder is protected and reinforced in the radial direction by the overlapped first and second flanges. When the inside housing is hit, the inside housing does not expand outward to be pried up. The reinforcement structure is made by way of pressing to use less material and to reduce the manufacturing cost.

Abstract: An auxiliary lock includes an inside housing mounted to a lock cylinder and a first flange extends axially from one of two ends of the inside housing. A mounting plate is mounted to the lock cylinder and contacts the inside housing. The mounting plate includes a second flange which is mounted to outside of the first flange of the inside housing. The lock cylinder is protected and reinforced in the radial direction by the overlapped first and second flanges. When the inside housing is hit, the inside housing does not expand outward to be pried up. The reinforcement structure is made by way of pressing to use less material and to reduce the manufacturing cost.