Lock-picking prevention apparatus

A lock-picking apparatus of the present invention, which is adaptable to a lock comprising:

• a first locking body provided with a first insertion head, inserted in a key hole and having an unlocking sliding surface contacting with an abutment driver pin so as to be capable of sliding with respect to the abutment driver pin;
• a second locking body provided with a second insertion head inserted in the key hole and having a locking hook surface for engaging the abutment driver pin,
• an eccentric cam disk provided in a rotating manner and having a cam eccentric oval projection outer edge fitted in a freely rotating manner to an oval rotating hole provided on the first locking body and a cam circular projection outer edge fitted in a freely rotating manner to a circular rotating hole provided on the second locking body, wherein at the time of unlocking, the first locking body and the second locking body slide over each other as a result of rotation of the eccentric cam disk
• wherein the first insertion head and the second insertion head are capable of being integrally inserted in the key hole;
• and
• at the time of unlocking, the first locking body and the second locking body slide over each other, and the unlocking sliding surface comes into contact with and slides over the abutment driver pin engaging with the locking hook surface, thus enabling the first locking body and the second locking body to be pulled out from the key hole.