How does an access control electric bolt lock work?
After the electric bolt lock receives the signal, it first unlocks and then sends a signal to the automatic door to open the door. Because the lock is first unlocked, the control unit of the lock sends a signal to the door controller to open the door, thus avoiding hit locking by the door opening and lock not jumping.
What are the parts of an electric bolt lock?
Usually, an electric bolt lock consists of two main parts: the lock body and the lock hole. The key component in the lock body is the “lock tongue”, which cooperates with the “lock hole” to realize the two states of “close the door” and “open the door”.
When to use an electric drop bolt lock?
It is also because of this feature that electric drop bolt locks are often used for glass doors and swing doors (two-way opening). At the same time, its “hidden” electric drop bolt lock installation features are more suitable for places with high-security requirements for locks and door access control systems.
How does an electric deadbolt lock work on a door?
Th e electric bolt locks i s an electric lock for glass door that drives the “locking tongue” to extend or retract by the on and off of the current to achieve the function of locking or opening the door, also called electric deadbolt lock and electric drop bolt lock.
What can I do to keep bolts from falling off?
While these devices do prevent the nut from falling off the bolt, they generally do not help the joint maintain the specified clamp force. Prevailing torque nuts. Nylon or metal inserts inside a nut (sometimes called a “lock nut”) can add extra friction to prevent loosening.
What do you need to know about bolts and fasteners?
Load indicating washers can accurately verify bolting loads by squishing open a paint sack after reaching a specific load. The drawback with these is that they only work once. http://www.boltscience.com/pages/tighten.htm The other option comes from a company called smart bolts who came out with a fastener featuring a built-in tension indicator.
What causes a bolt to loosen under vibration?
Washers. Washers are typically wider than the bolt head, with the additional surface area adding extra friction to the joint to maintain the clamp force. However, simple split washers, sometimes called helical spring washers, have been found to actually loosen the bolt under vibration even faster than a joint with no washer.
Why does the red lightning bolt light keep coming on?
If you keep having issues with the throttle and the red lightning bolt light remains on, you will need to have a mechanic look at it and get it sorted. The ETC light coming on is not usually cause for major concern but it does need you to pay attention to it.