The invention discloses an opening protection device for a dual-wing landing door. The opening protection device comprises a landing door opening / closing component, wherein the landing door opening / closing component comprises a positioning
assembly, a swinging locking block and a limiting piece, wherein the positioning
assembly is fixedly connected with a hanger plate of the landing door, and is used for supporting and positioning the swinging locking block; the swinging locking block is movably connected with the positioning
assembly, and can swing up and down relative to the positioning assembly under the action of external force; the limiting piece is fixedly connected with a landing door guide rail frame, and is clamped with the swinging locking block in an
interference fit way. The opening protection device has the beneficial effects that the opening protection device has the advantages of simple overall structure, simple manufacturing process, low cost and high universality; 2, a non-contact structure is adopted, so that freeness from wear and
noise and low wear rate are achieved; 3, actions are flexible, and small-distance displacement can be realized by using the pressure of a
car door driving stop lever on the driving wheel of a driving swinging arm in order to open a coupler lock swinging arm at a large angle, so that operation is convenient and easy; 4, high safety performance is achieved, the probability of
accidental fall of operating personnel into a hoist way is lowered, and the personal safety of operators is guaranteed.