The present invention relates to the field of passenger conveyor technologies, and provides an engaging state detection system of a passenger conveyor and a detection method thereof. In the engaging state detection system and detection method of the present invention, a depth sensing sensor is used to sense at least an engaging portion between a step and a comb plate of the passenger conveyor to obtain depth maps, and the depth maps are analyzed by a processing apparatus to detect whether an engaging state between the step and the comb plate is a normal state. The detection of the engaging state includes detection on whether comb teeth of the comb plate are broken, whether engaging teeth of the step are broken, and/or whether a foreign matter exists on an engaging line.

A comb plate for a conveyor device, the comb plate is provided with a plurality of teeth arranged across the width of the conveyor belt of the conveyor device and substantially parallel to each other, each of the plurality of teeth fits into a corresponding groove arranged on steps of the conveyor belt during operation, and the comb plate includes a plurality of rollers arranged at the front parts of at least some teeth.

A comb plate for a conveyor device, the comb plate is provided with a plurality of teeth arranged across the width of the conveyor belt of the conveyor device and substantially parallel to each other, each of the plurality of teeth fits into a corresponding groove arranged on steps of the conveyor belt during operation, and the comb plate includes a plurality of rollers arranged at the front parts of at least some teeth.

An automatic conveyor device includes an entrance platform and an exit platform opposite to each other, and a series of steps running in a loop between the entrance platform and the exit platform; a platform footboard at the entrance platform or exit platform; a comb support plate connected to the platform footboard and slidable along guide rails of the platform footboard along a length direction; and one or more comb plates fixedly mounted onto the comb support plate.

An automatic conveyor device includes an entrance platform and an exit platform opposite to each other, and a series of steps running in a loop between the entrance platform and the exit platform; a platform footboard at the entrance platform or exit platform; a comb support plate connected to the platform footboard and slidable along guide rails of the platform footboard along a length direction; and one or more comb plates fixedly mounted onto the comb support plate.

An automatic conveyor device including an entrance platform footboard, an exit platform footboard, and a series of steps running in a loop between the entrance platform footboard and the exit platform footboard; a first comb plate and a second comb plate respectively connected to the entrance platform footboard and the exit platform footboard through a comb support plate; and a first warning device disposed in the vicinity of the entrance platform footboard or the exit platform footboard, where the first warning device includes a projection device that projects a light beam along a width direction in the vicinity of the first comb plate or the second comb plate.

An automatic conveyor device including an entrance platform footboard, an exit platform footboard, and a series of steps running in a loop between the entrance platform footboard and the exit platform footboard; a first comb plate and a second comb plate respectively connected to the entrance platform footboard and the exit platform footboard through a comb support plate; and a first warning device disposed in the vicinity of the entrance platform footboard or the exit platform footboard, where the first warning device includes a projection device that projects a light beam along a width direction in the vicinity of the first comb plate or the second comb plate.

An escalator system includes a moving step including a plurality of grooves and drivable in a travel direction. A combplate is located at at least a downstream end of the moving step relative to the travel direction at a step-combplate interface. A retraction device is configured to move the combplate along the travel direction from a normal position toward a retracted position when an entrapment of an object is detected at the step-combplate interface.

An escalator system includes a moving step including a plurality of grooves and drivable in a travel direction. A combplate is located at at least a downstream end of the moving step relative to the travel direction at a step-combplate interface. A retraction device is configured to move the combplate along the travel direction from a normal position toward a retracted position when an entrapment of an object is detected at the step-combplate interface.

A passenger conveyor system and an anti-collision device for step and comb plate. The passenger conveyor system includes a step chain having a plurality of steps, a comb plate and an anti-collision device, the anti-collision device includes an actuating mechanism connected to the comb plate and configured to, when a moving distance of a step adjacent to comb teeth of the comb plate to be engaged in a vertical upward direction of the passenger conveyor system exceeds a preset value, actuate the comb plate to be lifted up from an initial first position to a second position to avoid collision with the step; and a reset mechanism configured to return the comb plate from the second position to the first position after the step travels through the comb plate.