Explain in detail the inspection method of the elevator protective door

During the inspection of the equipment method of the elevator protective door, the landing doors of the terminal station and 20% of the other landings should be selected, the car should be run out of the area, the landing door should be opened, and the sealing of the landing door and the effectiveness of the measures to prevent heavy blocks from falling should be observed. sex. Each landing door shall be openable from the outside by a qualified key; after an emergency, the door locking device shall not remain in place when the landing door is closed. During the inspection process, the landing doors of the terminal station and 20% of other landing stations shall be selected.

At this moment, relying on the emergency guidance equipment can still keep the landing door in its original position. Check by visual inspection. In the case of a landing door driven by a car door, there shall be a means to automatically close the landing door if, for whatever reason, the landing door is opened when the car is outside the zone. When using heavy blocks for automatic closing equipment, there should be measures to prevent the heavy blocks from falling.

At present, the automatic closing equipment of the landing door mostly adopts the heavy block type and the spring type. Emergency guidance equipment should be set up to keep the landing door in its original position. The door guide equipment includes hanging plate rollers, anti-rollers and door boots. The failure of these parts will cause the door leaf to be misaligned or derailed, and even cause the door leaf to fall into the well.

Especially in the case of fire, the engineering plastic outer edge of ordinary rollers and the non-metallic outer cladding of door boots may be melted. Touch protection equipment is also called safety touch panel, and non-touch protection equipment is divided into photoelectric protection equipment, ultrasonic monitoring equipment, and electromagnetic induction protection equipment according to the functional principle. During the on-site inspection, the method of simulated action test is adopted. Landing doors and car doors must not be derailed, mechanically jammed or dislocated at the end of the stroke during normal operation.