Clamp preventing light curtain specially used for nuclear power plant elevator

The utility model discloses a clamp preventing light curtain specially used for a nuclear power plant elevator, which comprises an emitting device, a receiving device and a light curtain power supply, wherein the light curtain power supply is put in a power box; the emitting device and the receiving device are respectively arranged on two sides of a cage door; and the clamp preventing light curtain is characterized in that the power box, the emitting device and the receiving device are all provided with sealing devices. The clamp preventing light curtain has the advantages that the level of protection reaches IP55, the safe light curtain can be ensured to be suitable for special environment which is dusty and moist, and has corrosive gas, and the material surface of which is not allowed to contain zinc, aluminum and the like, the failure frequency of the elevator is reduced, the clamp preventing light curtain has good safety and corrosion resistance, and the use cost and the maintenance cost are also synchron