8
The maximum tolerance of the tripod turnstile's arms
Please note that the maximum stress tolerance at the center of the arm is 80kg and at the ends of the arm is 40kg (See
Figure 5-1).When the impact force on the tripod turnstile reaches the designed limit, the arms break down first to ensure
that the whole equipment is not damaged and the passer-by is not injured.
Figure 5-1
In case of emergencies
This equipment is designed to drop down arms automatically if there is power failure thus make the passage being open to
the public. And there is interface in the turnstile control board to connect an emergency switch (J6 Drop Arm) which would
make the tripod turnstile keep open in case of emergencies. Note after power restoration, wait for more than 6s and then
lift the arms manually.
5.2 Maintenance
Forming maintenance consciousness
The tripod turnstile needs to be maintained regularly and repaired once it is damaged. It is recommended that warning
signs being placed at conspicuous positions for prompting passers-by to pass in a proper way and in good order.
Reasonable maintenance consciousness helps to guarantee long-term usage of the tripod turnstile.
Regular maintenance
Cleaning and protection liquid dedicated for stainless steel are recommended to wipe the outer shell of the equipment
regularly. The tripod turnstile used outdoors or in an environment with lots of dust must be maintained once a year at least,
for example, clean up the dust and add appropriate lubricating oil to Tri-lobed Wheel. Note regular maintenance should be
performed after power off the equipment.
The Adjustable Tension Spring is used to adjust the tripod turnstile's elasticity and return speed. You can rotate it in
clockwise direction to enhance and in anticlockwise direction to weaken the elasticity and return speed of the tripod
turnstile. See Figure 5-2.
Figure 5-3 shows the mechanical and electrical structure of this equipment.
Figure 5-2 Figure 5-3
Drop-arm Solenoid
Position Sensor
M
ax
imu
m s
tre
ss
to
le
ra
nc
e: 8
0 k
g
M
ax
imu
m s
tre
ss
to
le
ra
nc
e: 4
0 k
g
Lock
Adjustable Tension Spring
Turnstile-opening
Solenoid
Lock Rod
Metal Shrapnel Tri-lobed Wheel
Turnstile-opening
Solenoid
