Business turn over line shutoff system and prefabricated cabin of using this system

The utility model relates to a business turn over line shutoff system and prefabricated cabin of using this system. Wherein pass in and out line shutoff system including the apron, the apron is including horizontal apron and vertical apron, and the horizontal both ends of horizontal apron are used for being connected to the into horizontal both sides of outlet respectively, vertical both ends of vertical apron be used for being connected to along the two horizontal apron of longitudinal separation setting on respectively or be used for being connected to horizontal apron respectively and enter vertical one side of outlet, be equipped with on the horizontal apron supply vertical apron correspond the removable fixed connection structure of end, during the use, set up crossing the line passageway and can further adopting vertical apron of suitable size to carry out the shutoff of leaveing behind the horizontal apron to furthest reduces the opening size after the shutoff, and shutoff more complete can effectively reduce the access of humidity, and work quality is high, simultaneously, will be vertically the apron set up and to realize to the regionalism of cable of the same kind not the operating repair of being convenient for vertical in the middle of.