How to Open the Iron Door of a Container House

The method of opening the iron door of a container house mainly depends on the type of lock, which commonly includes fixed twist locks, lifting twist locks, hinged or movable twist locks, and plug-in twist locks, and operation should be carried out according to the specific type.

Fixed Twist Locks

Fixed twist locks are directly welded to the vehicle body, and the lock head can only rotate without vertical movement. To open, locate the handle of the twist lock, usually positioned on one side or the top of the door. By rotating the handle, the lock head can be turned away from the fixed corner position (usually 90 degrees or 70 degrees), releasing the locked state, and then the iron door can be opened by pushing or pulling.

Lifting Twist Locks

Lifting twist locks are fixedly connected to the vehicle body via brackets, and the lock head can both rotate and extend vertically. To open, first push the handle vertically to lift the lock head and insert it into the inner cavity of the container's corner fittings. Then rotate the handle to the specified angle to turn the lock head away from the locked state. Some lifting twist locks also come with a tightening device, which requires first using the tightening device to press the lock head down tightly against the bottom surface of the inner cavity of the corner fittings to prevent the corner from lifting, ensuring secure locking before following the above steps to open.

Hinged or Movable Twist Locks

Hinged or movable twist locks are hinged to the vehicle body or made movable, allowing adjustment of the fastening position. To open, locate the adjustment or moving device of the twist lock, which, depending on the specific design, may involve rotating, sliding, or pulling to detach the lock head from the corner fittings or fixed parts of the container, and then the iron door can be opened.

Plug-in Twist Locks

The lock shaft of a plug-in twist lock extends into the fixed part of the container body like a pin, and is generally used in combination with other types of twist locks. To open, locate the extraction device of the plug-in twist lock, which may involve rotating, pulling, or pressing to extract the lock shaft from the fixed part of the container body, releasing the locked state, and then opening the iron door.