Abstract: A universal trailer lock including an upper housing, a lower housing, a lock barrel set and a latch. A limit separator is further included, wherein the limit separator is provided to embed into a limiting groove of the upper housing. By the composition of above structure, the universal trailer lock may applied to trailer couplers with different specifications for effectively prevent trailers from being stolen.

Abstract: The present invention discloses a computer lock including a lock body, a guide seat, a lock tongue seat, a spring, a hook cylinder, and a cable rope set. The hook cylinder has a hook part extending outwards from the front end thereof. The hook part is arranged at inner wall of a slot of a computer; by lock actuation of a key, the guide seat is actuated to guide the lock tongue of the lock tongue seat to outstretch forward and enter the slot along the guide groove on the front end of the hook cylinder. By the foregoing mechanism, the computer lock is of being easy operation and can be locked and unlocked conveniently to prevent the computer from being stolen.

Abstract: The present invention discloses a computer lock including a lock body, a guide seat, a lock tongue seat, a spring, a hook cylinder, and a cable rope set. The hook cylinder has a hook part extending outwards from the front end thereof. The hook part is arranged at inner wall of a slot of a computer; by lock actuation of a key, the guide seat is actuated to guide the lock tongue of the lock tongue seat to outstretch forward and enter the slot along the guide groove on the front end of the hook cylinder. By the foregoing mechanism, the computer lock is of being easy operation and can be locked and unlocked conveniently to prevent the computer from being stolen.

Abstract: A bicycle accessory holding dock to hang a bicycle accessory. The accessory holding dock includes an anchor seat with a coupling portion to couple with a retaining ring to allow an accessory coupling seat to be wedged and retained on the anchor seat. Thus the accessory can be hung in a direction as required according to varying wedged directions.

Abstract: A trailer coupling dock theft-proof lock to prevent unauthorized coupling and hauling of a trailer during parking includes a locking dock, a coupling assembly and a lock assembly. The coupling assembly can be latched in a dome of a trailer coupling dock. By locking and unlocking of the lock assembly the coupling assembly can be retained or removed so that unauthorized towing of the trailer can be prevented.

Abstract: A lock for steering wheels of vehicles includes a seat with an aperture formed at one end to receive a detent tube. The detent tube has a flute to hold an inner lining. The inner lining has a third pin hole. A latch bar is provided and insertable into a first holding hole of the detent tube and a second holding hole of the inner lining. The third pin hole is insertable by a third pin to anchor the latch bar. The latch bar can clamp two sides of a reinforced spoke of a steering wheel. The invention can be assembled quickly and easily, and provide improved theft-thwarting effect, and is adaptable to various steering wheels installed on varying locations of vehicles in different countries.

Abstract: An improved trailer theft-thwarting coupling dock to prevent unauthorized coupling and hauling of the trailer coupling dock includes a coupling dock body, a upper mechanism, a lower mechanism and a lock assembly. The upper mechanism has a upper handle fastening to the lock assembly. Through locking and unlocking of the lock assembly, unauthorized opening of the upper mechanism can be prevented. Thereby the trailer coupling dock cannot be coupled and hauled unless authorized, and an improved theft-thwarting effect can be achieved for the trailer.

Abstract: A trailer lock and particularly a trailer lock for locking a trailer ball cap includes a lock housing, a lock, a latch bolt, a holding seat and a detent member. The lock housing has an opening to hold the lock, a U-shaped trough to hold the latch bolt, a through trough to hold the holding seat and allow the detent member to slide on the holding seat. The lock has a housing chamber on one side to couple with the trailer ball cap. The latch bolt can control movement of the detent member by turning of the lock so that the detent member is wedged in a latch trough on one end of the latch bolt, and a latch end of the latch bolt is extended and anchored in the housing chamber of the lock housing and locked on the trailer ball cap. When the trailer is separated from a vehicle, the trailer ball cannot be coupled thereby to provide theft-proof function.

Abstract: A lock comprises a shell including an axial hole, a radial hole in communication with the axial hole, and a threaded section on the radial hole; a handle mechanism including a recess in the lower portion for pivotably receiving the shell, a groove in the bottom in communication with the recess, a side hole in communication with the radial hole and the recess, and a pin fixed in a side aperture; a slidable adjusting bar in the radial hole, the adjusting bar including an upper end, a lower end, and an annular groove in the central portion; a body secured in the axial hole, the body including a keyhole on one end, a rotatable lock mechanism on the other end, and a rotatable stud on the lock mechanism capable of being activated to move into or retract from the annular groove; and a cylinder including an upper threaded section threadedly secured to the threaded section of the shell, a lower section for fastening two work pieces, and a top hole for receiving the lower end of adjusting bar.

Abstract: An improved lock guarded from being sabotaged by prying or cutting has a round latch rod and a lock assembly that are separably locked together by way of retaining balls housed and limited in holes in a rotary unit which is spring biased so as to retractably move back and forth in a sleeve. A limiting stopper having a flanged end which is provided with a pair of opposite cuts in correspondence to the retaining balls. The retaining balls are in general limited by the flanged end without being movable up and down so that a latch rod having a groove in which the retaining balls can be housed is locked in place once the latch head is forced into engagement with the retaining balls.