There is provided a lock which can include a shackle which can be moved between an unlocked configuration and a locked configuration. A locking mechanism can be carried by the lock. The locking mechanism can include a guard which can be actuated in a manner such that an access region can be defined to facilitate movement of the shackle such that the shackle can be moved to be in an unlocked configuration. The guard can also be actuated in a manner so as to block the access region to impede movement of the shackle when in the locked configuration such that the shackle is maintained in the locked configuration.

An opening and closing device is provided. The opening and closing device includes a housing, a displacement restricting part, an electrical driving module, and an electroless driving module. The displacement restricting part is capable of moving with respect to the housing when the electrical driving module is in an unlocked state. The electrical driving module is capable of restricting the displacement restricting part from moving with respect to the housing when the electrical driving module is in a locked state. The electroless driving module is capable of releasing the electrical driving module's restriction over the moving of the displacement restricting part with respect to the housing via the hand-driven part.

An anti-tampering device secures bolted components, such as a trailer coupler mounted to an adjustable channel. A nut shield provides hexagonal channels in which nuts are contained. A hasp assembly provides a locking tab. Bolts secure the nut shield and the hasp assembly to the components. A hasp shield with a notched annular flange overlays the hasp assembly, receives the tab through a slot in the area surrounded by the notched annular flange, and contains a puck lock in the area. The puck lock engages the locking tab.

An anti-tampering device secures bolted components, such as a trailer coupler mounted to an adjustable channel. A nut shield provides hexagonal channels in which nuts are contained. A hasp assembly provides a locking tab. Bolts secure the nut shield and the hasp assembly to the components. A hasp shield with a notched annular flange overlays the hasp assembly, receives the tab through a slot in the area surrounded by the notched annular flange, and contains a puck lock in the area. The puck lock engages the locking tab.

A locking system and method of manufacture can include: a cargo container having a first container door, a second container door, and a container frame base; a lock box affixed to the second container door, the lock box extended into and through the second container door, the lock box including a sliding lock rod configured to extend behind the first container door when the lock box is in a locked configuration; a sliding lock rod guard affixed to an exterior surface of the first container door and affixed to the exterior surface of the second container door; door guards affixed to the second container door and the first container door; and a drop lock affixed to an interior surface of the first container door, the drop lock including a drop lock rod configured to extend down into the container frame base when the drop lock is in a locked configuration.

A locking system and method of manufacture can include: a cargo container having a first container door, a second container door, and a container frame base; a lock box affixed to the second container door, the lock box extended into and through the second container door, the lock box including a sliding lock rod configured to extend behind the first container door when the lock box is in a locked configuration; a sliding lock rod guard affixed to an exterior surface of the first container door and affixed to the exterior surface of the second container door; door guards affixed to the second container door and the first container door; and a drop lock affixed to an interior surface of the first container door, the drop lock including a drop lock rod configured to extend down into the container frame base when the drop lock is in a locked configuration.

Systems, devices, and methods for controlling access to a secure space are disclosed. The system includes a locking device fastenable to an access point of the secure space, a server, and a network for communication between the locking device and server. The server includes a storage unit to store authorization data for the locking device and the user computing device, and a processing unit for receiving a request from the user computing device to access the locking device; authenticating the user computing device; generating authorization data; and providing at least part of the authorization data to each of the locking device and the user computing device. The locking device includes an actuator, a memory, and a processing unit for receiving a security command from the user computing device; determining whether the security command includes requesting data that corresponds to the authorization data; and generating a control signal for the actuator to move the locking device based on the security command.

A padlock having a removable or interchangeable shackle is disclosed. The padlock comprises a lock body and a shackle, the shackle being movable in an axial direction between a locked position and an unlocked position, the short leg being withdrawn from the lock body in the unlocked position. The padlock also comprises a retaining shaft receivable within a corresponding bore of the lock body, wherein the long leg includes a longitudinal recess for providing a travel path for the movement of the shackle from a locked position defined by the retaining shaft engaging a first end of the longitudinal recess to an unlocked position defined by the retaining shaft engaging a second end of the longitudinal recess to prevent the shackle from being removed from the lock body when the shackle is in the unlocked position.

A padlock having a removable or interchangeable shackle is disclosed. The padlock comprises a lock body and a shackle, the shackle being movable in an axial direction between a locked position and an unlocked position, the short leg being withdrawn from the lock body in the unlocked position. The padlock also comprises a retaining shaft receivable within a corresponding bore of the lock body, wherein the long leg includes a longitudinal recess for providing a travel path for the movement of the shackle from a locked position defined by the retaining shaft engaging a first end of the longitudinal recess to an unlocked position defined by the retaining shaft engaging a second end of the longitudinal recess to prevent the shackle from being removed from the lock body when the shackle is in the unlocked position.

A game system comprises of game pieces with 2D Barcodes, Skill Management Module, Server Devices, and Client Device is revealed. A player scans the 2D Barcodes, receives automatically graded tasks or manually graded tasks. Then upload task completion results and receive reward points, reward badges or reward pictures. The first player or the first team of players who earned the pre-required points, or badges, or pictures wins the game.