Which of the property management regulations is violated by the owners of residential quarters occupying the fire escape privately?

It's not the property regulations, it's Article 60 of the Fire Protection Law. If a unit violates the provisions of this Law and commits any of the following acts, it shall be ordered to make corrections and be fined between 5,000 yuan and 50,000 yuan: \x0d\ (1) The configuration and setting of fire-fighting facilities, equipment or fire safety signs do not meet the national standards or industry standards, or are not kept intact and effective; \x0d\ (2) Damaging, misappropriating or dismantling or stopping fire control facilities and equipment without authorization; \x0d\ (3) Occupation, blocking, sealing evacuation passages and exits or other acts that hinder safe evacuation; \x0d\ (4) Burying, occupying, shielding fire hydrants or occupying fire prevention space; \x0d\ (5) Occupying, blocking or closing the passage of fire engines, which hinders the passage of fire engines; \x0d\ (6) Set obstacles on the doors and windows of crowded places that affect escape and fire fighting and rescue; \x0d\ (7) Failing to take timely measures to eliminate fire hazards after being notified by the fire department of the public security organ. \x0d\ An individual who commits any of the acts mentioned in Item 2, Item 3, Item 4 and Item 5 of the preceding paragraph shall be given a warning or fined up to 500 yuan. \x0d\ Whoever commits one of the acts listed in Item 3, Item 4, Item 5 and Item 6 of the first paragraph of this article and refuses to correct after being ordered to do so, shall be enforced, and the expenses required shall be borne by the violator.