A lock for securing semi-trailers. More specifically, the lock of the invention secures the landing gear assembly of a semi-trailer. The lock is made up of a main body, a detachable locking plate, and a lock mechanism. The main body includes a post located in a crankshaft securing portion of the main body. The crankshaft securing portion includes a plurality of crankshaft guides and opposite facing lips which in combination provide a slot to accommodate the detachable locking plate. The post extends outward from an interior surface of the main body. The detachable locking plate fits over at least a portion of the crankshaft securing portion of the main body. The lock mechanism is in operable communication with the detachable locking plate.

A jack lock has a hinged jack enclosure that encompasses a trailer jack. In a first restraining position the jack enclosure prevents a trailer jack from retracting to an transport position. In a second releasing position the jack lock may be easily and quickly removed from the jack. To further deter theft, a tongue arm is unitarily fabricated with and extends from the jack enclosure. The tongue arm runs under a trailer ball receiver, and terminates with a hitch stop that wraps around the ball receiver to block a land vehicle from accessing the trailer coupler. A lock selectively holds the jack enclosure closed to prevent the trailer jack from retracting, but when unlocked permits the jack enclosure to be removed from the trailer jack. Removal of the jack enclosure will also remove the hitch stop from blocking the ball receiver. A lock enclosure prevents access to the locking mechanisms.

Systems and methods for accessing one or more compartments or systems of a non-automotive vehicle. One system includes an electronic communications device including an electronic processor. The electronic processor is configured to authenticate an access control system of a non-automotive vehicle using a first wireless communications protocol, determine distance information via ranging between the electronic communications device and the access control system using a second wireless communications protocol, and send the distance information to the access control system, thereby enabling the access control system to selectively unlock a steering mechanism of the non-automotive vehicle based on the distance information.

The present invention discloses a trailer lock including a lock bar and a cylinder connected with the lock bar, wherein the cylinder includes an outer casing, a plug casing mounted at a front end of the outer casing and a plug provided in a middle of the plug casing, and further includes a bolt casing fixed in the outer casing and a cam accommodated in the bolt casing and connected with the plug, a telescopic core is provided in the cam, telescopic bolts for fixing the lock bar are provided at two sides of the bolt casing, the bolt has a front end connected with a rear end of the cam, and the lock bar has a front end provided with a press head having an annular neck where the bolt is clamped. The trailer lock designed in this way is convenient to use.

A smart authorization system preventing a trailer from being pulled without authority either by activating, deactivating or blocking access to coupling devices or by maintaining parking conditions or temporarily disabling driving systems.

A lockable anti-theft device for a camper jack is provided. The lockable anti-theft device includes a blocking faceplate and a bar insert. The blocking faceplate includes a central plate connected to a pair of side plates. The central plate includes a blocking element configured to block access to a manually adjustable raising/lowering mechanism of the camper jack. The bar insert includes a primary bar and a secondary bar connected to the primary bar. The primary bar includes a locking hole configured to allow a mechanical lock to removably retain the blocking faceplate relative to the bar insert in a locked position. The lockable anti-theft device for the camper jack is configured to prevent the unauthorized person (thief) from stealing the camper by blocking access to the manually adjustable raising/lowering mechanism of the camper jack.

The present invention is directed towards an improved trailer locking device configured for association with a trailer and a corresponding method of operation wherein movement of an associated trailer is limited by extending an extendable support at least partially received by a receiver having a complementary cross-section configured for slidable receipt of the extendable support, a fastening pin configured for at least partial passage through at least one side of the receiver and at least partially though the extendable support, the fastening mechanism being configured for engagement with the fastening pin, an upper support spaced from a lower support and configured for mounting the receiver in a vertical position and a security plate mounted on the receiver and configured to at least partially obscure the fastening pin.

A locking mechanism for a trailer landing leg is described. The locking mechanism has a bracket, a crank shaft attachment, and a locking pin assembly. The bracket securely attaches over the crank shaft of the landing leg via one or more one-time fasteners. The locking pin assembly attaches to the bracket via one or more one-time fasteners. The crank shaft attachment attaches to the crank shaft and the handle via one or more one-time fasteners. The crank shaft attachment surrounds the crank shaft and the handle. The locking pin assembly has a locking pin that transitions between a locked position and an unlocked position. The locking pin prevents the crank shaft attachment from rotating when in the locked position. The locking pin assembly also has a processor, a GPS tracker, sensors, and a wireless communication device that can detect tampering and alert a user.