Handrail Entry Guard
This device is fitted at the entry of the handrail
to prevent any injuries caused by foreign matters,especially
when children's fingers reach into the handrail
gaps. The contacts of this device break under the
action of thrust and disconnect the power and thus
lead to shutdown.
Emergency Stop Button
A red emergency stop button is provided at the
entry and exit ends of the escalator. Its function
is to disconnect the power and thus lead to shutdown
in case of any emergencies.
Broken Step Chain Safety Device
Though the strength of the step chain is fully
taken into account, the aforesaid device is still
provided in order to stop the escalator immediately
in case of any unexpected circumstances.
Comb Plate safety Device
The contacts of comb plate are located on the
back of the comb plate. If there are any foreign
matters clamped in it, the comb plate can move
horizontally and vertically. When it acts on the
contacts, the power will be disconnected and the
escalator will be switched off.
Skirting Safety Device
Its function is to prevent any foreign matters
from being clamped between the step and skirting,which
will affect the escalator running ,especially
prevent unexpected accidents caused by the shoes
or long skirts of passengers being seized .If
the skirting is deformed , the contacts will be
actuated and thus lead to power disconnection
and escalator shutdown.
Step Sagging Detector
Breaking of the escalator steps is very dangerous.
So lower limit contacts for steps are provided
in the truss. When a step sags over 3mm,the contacts
will immediately operate and the escalator will
stop.
Abnormal Step Detector
If any step loss occurs due to negligence,the
escalator will stop immediately after starting
to run.
Power Protection Device
Phase monitor is installed to prevent reverse
phase and failure of the power supply. The escalator
can still operate normally when the power voltage
or frequency fluctuates.
Overspeed Protection Device
The escalator will stop immediately if its running
speed is over or below its rated speed by specified
value.
Electromagnetic Brake
It can stop the operation of the escalator quickly
and steadily in case of any motor faults.
Protection device for unintentional reverdal
of the travel direction
Its function is to prevent the escalator running
in the direction different from its current travel
direction.
Broken Drive-chain Safety Device
Its function is to disconnect the power and thus
stop the escalator in case of broken drive chains. |
