How Does Lever Lock Works? | 3D Animation | Hindi

With every possession comes a natural urge to protect it with all the might, protect it with every possible barrier that he could invent. One of the last bulwarks to this line of security has been the simple yet efficient, padlock. Padlocks were one of the very first mechanical inventions that were designed to protect the assets and houses. A very high degree of key specificity makes the chances of having one key working with more than one lock highly unlikely. In order to use it, there is no complicated mechanism unlike setting a password of 6 characters or more and then always remembering them, but a simple key. All one has to do is to insert appropriate key to engage or release the lock. Simple enough? But is it really that simple from the inside? Let’s find out. Why every lock does have its own unique key?
he image above shows a 7 lever mechanical lock. In lever locks, there are two metal casings. The first casing is the one visible to the user. Made from cast iron, the outer casing can handle a lot of tampering and mechanical abrasion before letting the trespasser disturb the internal working of the lock and break it. It also gives the outer appeal to the locks. It may further be enameled using a thick chromium layer or copper. The outer casings can also be made using stainless steel or brasses which do not require any extra coat as they are already corrosion resistant.
The outer casing can either be a combination of front and back parts firmly joined to each other or can be a single mould enclosing the internal casing. The one taken here is the former design with the image below showing the internal casing when back casing of the lock is removed. A stainless steel shackle is used to engage and release the lock. The shackle has to be tough to cutting tools in order to ensure security of the lock and everything it is guarding.
The internal casing is placed immediately inside the top one with minimal gap between them. When placed close, there is no extra space taken to accommodate internal casing and moving the internal casing within the confines of the outer shell is very difficult.
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