A lock for electronic devices may include a main body, a lock barrel, a pushing member, and two engaging pieces. The main body has a cover and a cylinder which are connected together at a front portion and a rear portion of the main body. The cover comprises a through hole at a central portion thereof, and two pivot bases are respectively formed at two lateral sides of the through hole in the cover. The lock barrel comprising a lock pin is installed in the cylinder of the main body, and the lock pin is configured to protrude from a rear end of the cylinder when the lock of present invention is at an unlocked position. The pushing member is installed in a front portion of the cylinder, and a rear end of the pushing member is coupled with the lock pin so as to have synchronous movement.

A latch arrangement may comprise a latch bolt configured to rotate about a pivot, and a shear pin coupled to the latch bolt. A counterbore may receive the shear pin whereby lateral loads may be transferred between a door panel and a frame.

Systems and methods for operating an aircraft door including an airstair are disclosed. In one embodiment, the system comprises a hinge configured to pivotally couple a lower portion of the door to a fuselage of an aircraft, a lift mechanism and an interlock. The lift mechanism causes a movement of the door relative to the hinge between a lowered position and a lifted position. The interlock is configurable between: a locked configuration where the movement of the door relative to the hinge is prevented; and an unlocked configuration where the movement of the door relative to the hinge is permitted.

Systems and methods for operating an aircraft door including an airstair are disclosed. In one embodiment, the system comprises a hinge configured to pivotally couple a lower portion of the door to a fuselage of an aircraft, a lift mechanism and an interlock. The lift mechanism causes a movement of the door relative to the hinge between a lowered position and a lifted position. The interlock is configurable between: a locked configuration where the movement of the door relative to the hinge is prevented; and an unlocked configuration where the movement of the door relative to the hinge is permitted.

An equipment carrier holding device has a housing with a door. A screwing block is arranged in the housing. A clamping block and a fastening screw fix a fastening link of an item of equipment between the clamping block and the screwing block. The clamping block is positioned in relation to the door such that, in the event of incomplete arresting of the fastening screw, the fastening screw forms a mechanical barrier to complete closing of the door. A rail vehicle is also described which is equipped with such an equipment carrier holding device.

An equipment carrier holding device has a housing with a door. A screwing block is arranged in the housing. A clamping block and a fastening screw fix a fastening link of an item of equipment between the clamping block and the screwing block. The clamping block is positioned in relation to the door such that, in the event of incomplete arresting of the fastening screw, the fastening screw forms a mechanical barrier to complete closing of the door. A rail vehicle is also described which is equipped with such an equipment carrier holding device.

A lock for electronic devices may include a main body, a lock barrel, a pushing member, and two engaging pieces. The main body has a cover and a cylinder which are connected together at a front portion and a rear portion of the main body. The cover comprises a through hole at a central portion thereof, and two pivot bases are respectively formed at two lateral sides of the through hole in the cover. The lock barrel comprising a lock pin is installed in the cylinder of the main body, and the lock pin is configured to protrude from a rear end of the cylinder when the lock of present invention is at an unlocked position. The pushing member is installed in a front portion of the cylinder, and a rear end of the pushing member is coupled with the lock pin so as to have synchronous movement.

Provided are a lockset and a pallet loading bin having the same. A lock hole is arranged at the pallet loading bin. The lockset comprises a lock bar and a handle. A first end of the lock bar is provided with a hook member for fitting the lock hole to realize locking. A connection portion is provided at the lock bar. The lock bar is rotatably connected, by means of the connection portion, to a bin body of the pallet loading bin. Rotation of the lock bar around the connection portion in a plane parallel to an outer surface of the bin body causes the hook member to extend into or retract from the lock hole, thereby realizing locking or unlocking of the lockset. The handle comprises a connection end. The handle is rotatably connected, by means of the connection end, to a second end of the lock bar opposite to the first end of the lock bar. Rotation of the handle around the connection end causes the handle to be positioned close to or away from the outer surface of the bin body. The lockset has a simple structure and low costs, can be processed and manufactured easily, can be operated flexibly with less effort, and adapts to the small thicknesses of an end wall and a side wall of a pallet loading bin.

Systems and methods described in this application are directed to hatch lid actuation systems. Actuation systems of the inventive subject matter are configured to effect the opening and closing of lids that are hingedly coupled with an opening. An embodiment featuring a rotational actuator, e.g., a motor, as well as an embodiment featuring a linear actuator are described. Embodiments having rotational actuators can additionally feature a gearbox. Embodiments of the inventive subject matter can also include sensor packages that can determine various hatch lid conditions (e.g., whether a lid is open, closed, wet, etc.).

Systems and methods described in this application are directed to hatch lid actuation systems. Actuation systems of the inventive subject matter are configured to effect the opening and closing of lids that are hingedly coupled with an opening. An embodiment featuring a rotational actuator, e.g., a motor, as well as an embodiment featuring a linear actuator are described. Embodiments having rotational actuators can additionally feature a gearbox. Embodiments of the inventive subject matter can also include sensor packages that can determine various hatch lid conditions (e.g., whether a lid is open, closed, wet, etc.).