Abstract: An anti-theft device for locking up the steering wheel of an automobile; the device has a locking rod, of which one end is welded to the center of a symmetrical locking hook, while the other end thereof is inserted into a lock rod groove of a casing portion. The casing position has a locking assembly to prevent the locking rod from moving unintentionally. One side of the casing portion is fastened with a L-shaped locking plate facing the locking hook. The symmetrical locking hooks is used to hold the spoke of a steering wheel. The L-shaped locking plate can be moved by pushing the casing portion until holding the grip wheel of a steering wheel so as to prevent a car from being stolen.

Abstract: A combination padlock with re-setting mechanism, which comprises a main shaft having a shaft end block on one end and a shaft portion on the other end thereof; the shaft portion has an axial hole with cascade-shaped hole therein and a long slot on the top side thereof for receiving a positioning rod and a locking bar; a spring is mounted between the locking tumbler and the positioning rod; springs are also mounted between the locking bar and the positioning rod. The shaft portion is mounted around with several clutch rings and resilient partition rings. After the main shaft and the fixed cap are assembled together, the positioning rod is fixed in place with a fixing pin; the fixed cap has a shackle hole for receiving one end of a shackle. The outer surface of the main shaft is mounted with several wheel members; the shaft end block of the main shaft and the movable cap are detachable so as to facilitate changing the combination numbers by removing all the wheel members to set new combination numbers thereon.

Abstract: It is an improvement for a combination padlock, which comprises mainly a main shaft for mounting, a combination wheel assembly; the main shaft has a T-shaped slot for receiving a T-shaped block therein. There are two springs being mounted between the T-shaped block and the T-shaped slot; the main shaft has a center hole for loading two lock tumblers therein; there is a spring being mounted between the two lock tumblers to maintain a pushing force to the tumblers. After the main shaft is mounted with the combination wheel assembly, an end cap is fixedly attached to an end of the main shaft. Since there is a given flexible distance between the two lock tumblers set with the T-shaped block, the padlock can be locked up or unlock easily under a security condition.