The present disclosure provides an intelligent lock. In an embodiment, the intelligent lock includes: a lock body having a lock hole; a lock lever, the lock lever being capable of being plugged into and being unplugged out of the lock hole of the lock body; a first restricting member movably provided inside the lock body, and capable of being moved and latched into the lock hole to restrict the plugging of the lock lever into the lock hole or the unplugging of the lock lever out of the lock hole; a second restricting member movably provided inside the lock body, and capable of being abutted against the first restricting member so as to restrict a movement of the first restricting member; a detecting device provided in the lock body, and configured to detect the plugging operation of the lock lever into the lock hole or the unplugging operation of the lock lever out of the lock hole and to send a detection signal; and a main control element communicatively connected to the detecting device, and configured to determine a locking state of the intelligent lock in accordance with the detection signal sent by the detecting device.

A fluid-driven hatch for a bulk material container includes a cover is opened by a fluid-driven cover actuator and secured by a fluid-driven lock actuator. A fluid conduit connects both the fluid-driven cover actuator and the fluid-driven lock actuator to a pressurized fluid source. Pressurized fluid is selectively supplied to the fluid conduit such that the fluid-driven lock actuator is actuated at a first pressure to unlock the cover, and the fluid-driven cover actuator is actuated moments later at a second, higher pressure to open the cover.

The present disclosure provides a hinge, a freight container that includes the hinge and a freight container that includes a locking rod and optionally the hinge. The hinge includes a locking pin, a first wing, a second wing and a first hinge pin that pivotally connects the first wing to the second wing. The hinge further includes a pair of hinge lugs each having a first set of surfaces defining openings through which a second hinge pin passes and at least one of the pair of hinge lugs having a surface defining an opening through which a locking pin reversibly travels.

An apparatus is disclosed for opening and closing a grain or access door on a barge lid or cover, the grain door having a latch connecting the grain door to the barge lid, the apparatus supportable by an overhead lifting system. The apparatus can include a base which is supportable by the overhead lifting system and a mechanical arm assembly connected to the base, the mechanical arm assembly including a first arm rotatably connected to the base, a second arm connected to the first arm, a latch engagement member connected to the second arm; and an actuator connected between the first arm and the second arm, the actuator operable to move the second arm relative to the first arm to disengage the latch on the grain door from the barge lid via the latch engagement member and swing the grain door from a closed position to an open position.

A mechanism for adjusting the distance and relative horizontal level between a storage box lid and the product storage box body includes a rod, a first adjustment member, and a second adjustment member. The rod is positioned on the edge of the box and is axially movable. The first and second adjustment members on the rod can be repositioned along the length direction of the rod to increase or decrease the distance between the lid and the box body to accommodate different thicknesses of seals between the two, and for achieving integrity in a horizontal level. A product storage box is also disclosed.

A package delivery system for enhanced delivery receivals including a door access panel, a first housing, a controller, a wireless communication interface, a delivery handling device, a second housing, and a transfer device. The door access panel may accept delivery of packages via a passageway that may be formed in a door. The first housing may be attached to the door access panel. The first housing may be in communication with the passageway to house packages delivered through the door access panel. The controller may selectively move the door between the opened position and the closed position. The delivery handling device may be moveable between an engaged position and a disengaged position. The second housing may be carried by the delivery handling device to receive a package from the first housing. The transfer device may move the package from the first housing to the second housing.

A locking system for locking of an enclosure that is provided with at least one and preferably two doors or gates is provided. The locking system comprising a lock holding device with a bent piece for mounting of a locking rod behind the door and a blocking element and a lock.

A system for remotely opening an access hatch of storage tank includes an elongate arm having a proximal end configured to be operatively coupled to a lid of the access hatch and a distal end extendable past an outer perimeter of the storage tank, and a pull cable attached to the arm at the distal end and being extendable toward a ground surrounding the storage tank. Pulling on the pull cable releases a latch that secures the lid to a base of the access hatch and allows the lid to pivot from a closed position to an open position.

A system for remotely opening an access hatch of storage tank includes an elongate arm having a proximal end configured to be operatively coupled to a lid of the access hatch and a distal end extendable past an outer perimeter of the storage tank, and a pull cable attached to the arm at the distal end and being extendable toward a ground surrounding the storage tank. Pulling on the pull cable releases a latch that secures the lid to a base of the access hatch and allows the lid to pivot from a closed position to an open position.

A construction element includes a first wall, and a second wall. The walls are arranged at a distance from one another, forming a space wherein at least one non-concrete composite bar is arranged. Concrete is arranged in the space between the first wall, the second wall, and the composite bars.