UNIQUE ADJUSTABLE TRAILER-LOCKING SYSTEM, HAVING UNIQUE QUICK-SIZE-RELEASE, QUICK-SIZE-ASSEMBLY, AND QUICK-SIZE-SWITCH TRAILER LOCK FOR SECURELY LOCKING HITCH-BALL RECEIVERS OF ALL STANDARDIZED SIZES, AND FOR ELIMINATING CAVITIES INSIDE HITCH-BALL RECEIVERS TO PREVENT CROWBAR-INSERTION TRAILER THEFT

摘要

A unique adjustable trailer-locking system comprises a locking ball, a lock, a locking pin, a key, and first, second, third, and fourth size-adjusting caps. The locking ball has a through hole. Each of the first, second, third, and fourth size-adjusting caps has a dome shape and a hollow shaft attached to its center. Each of the hollow shafts can be inserted into the through hole or another one of the hollow shafts to quickly and easily assemble, disassemble, and switch the locking ball from one size to another, to snuggly fit inside a hitch-ball receiver of any of all three standardized sizes (1⅞ inches, 2 inches, and 2 5/16 inches) to eliminate all the cavities or gaps therebetween, to prevent a crowbar from being inserted therebetween to pry the locking ball off or to damage it, to prevent trailer theft. The locking pin is for being inserted through a hitch-ball-receiver lever and through the lock. The key is for turning the lock to secure the locking pin and the hitch-ball-receiver lever, to lock the locking ball snuggly inside hitch-ball receivers of all three standardized sizes, without any cavities or gaps therebetween.