Equipotential connection device for slide door of subway shielding door system

Abstract

The invention discloses a sliding door equipotential connection device in a platform screen door system. The sliding door equipotential connection device comprises an equipotential copper bar (4) fixed on the bottom of a portal crane girder of the screen door, wherein both ends of the equipotential copper bar are connected with the metro rails through wires; a conductive steel brush bracket (1) fixedly arranged on a sliding door suspension device through metal bolts; and a conductive steel brush (2) having a main body fixedly arranged on the conductive steel brush bracket (1) and keeping frictional contact with the equipotential copper bar (4). The sliding door equipotential connection device can effectively ensure equal potential of the sliding door body, the rails and the train, and hasthe advantages of safe and reliable operation, simple structure and convenient installation and maintenance.

Description

technical field [0001] The invention relates to a subway screen door, in particular to an equipotential connection device for sliding doors in a subway screen door system. Background technique [0002] With the popularization and application of urban light rail and subway in major cities, subway screen doors and security door systems have gradually been widely used. The subway screen door and safety door system should not only play an isolation role, meet the safety requirements, but also meet the aesthetic requirements. [0003] Due to the potential difference between the metal parts of the subway screen door and safety door and the metal parts on the train, in order to ensure the safety of passengers and staff, all metal parts of the subway screen door or safety door that passengers and staff are easy to touch and the metal parts on the train Equipotential bonding must be maintained between components. In the overall design of the subway screen door or safety door system...

AI Technical Summary

Problems solved by technology

However, the disadvantage of realizing the effective connection between the sliding door and the equipotential connection copper bar through carbon brushes is that dust will be generated during the grinding process of the carbon brushes and the equipotential connection copper bars, and the carbon brushes are easily worn out, and the service life is too long. short

Another method is to use the drag chain to drive the connecting cable to realize the effective connection between the sliding door and the equipotential connection copper bar. The time is not less than 20h, the sliding door is opened and closed once every 120s, and the work is 365 days a year), the drag chain and connecting cables are prone to aging, which affects the service life and poses a safety hazard

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