A car stopper, also known as a parking device, is a crucial facility in coal mine transportation systems. It is a type of runaway prevention device, typically installed at the top of an inclined shaft. It serves two purposes: firstly, it restricts the stopping of mine cars to a designated position, and secondly, it prevents runaway accidents. It is often used in conjunction with equipment such as pushers, tippers, climbing cars, cages, and winches.
Inclined shaft rail transport is an integral part of mine transportation and a vital link in coal mine safety production, responsible for hoisting coal, rocks, and lowering equipment and materials. According to the "Coal Mine Safety Regulations," a "one slope, three barriers" safety measure must be implemented during inclined shaft transport: car barriers, automatic runaway prevention devices, and car stoppers. Over the decades, countless casualties have resulted from runaway accidents in mines, becoming a major obstacle to coal mine production and development. Car stoppers are mechanical devices installed below the shaft opening to prevent mine cars from sliding down uncontrollably. They come in normally open and normally closed types, effectively preventing runaway cars and avoiding major accidents.
