A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Disclosed is a prying resistant safety lock without a marble. The prying resistant safety lock without the marble comprises a lock core (1) with a lock core axis hole (1.1), a lock core shaft (2) inserted into the lock core axis hole (1.1), a toggling block (3) clamped on the lock core shaft (2) and a key (4) used to rotate the lock core shaft (2). According to the prying resistant safety lock without the marble, no marble hole and no marble are arranged on the lock core shaft (2), a sleeve hole (2.1) is formed in the front end face of the lock core shaft (2) and along the axial direction, and a prying resistant shaft (5) is placed on the sleeve hole (2.1). The prying resistant safety lock without the marble has the advantages that a positioning salient point A is arranged in the lock core axis hole, a positioning concave point B is arranged on a position in an inner polygon sleeve hole of the key, corresponding to the positioning salient point A, the number of the positioning concave points B can be larger than one, imitation difficulty of the key is improved, and simultaneously a guiding function of smoothly inserting the key into a polygon nut is achieved.
Disclosed is a prying resistant safety lock without a marble. The prying resistant safety lock without the marble comprises a lock core (1) with a lock core axis hole (1.1), a lock core shaft (2) inserted into the lock core axis hole (1.1), a toggling block (3) clamped on the lock core shaft (2) and a key (4) used to rotate the lock core shaft (2). According to the prying resistant safety lock without the marble, no marble hole and no marble are arranged on the lock core shaft (2), a sleeve hole (2.1) is formed in the front end face of the lock core shaft (2) and along the axial direction, and a prying resistant shaft (5) is placed on the sleeve hole (2.1). The prying resistant safety lock without the marble has the advantages that a positioning salient point A is arranged in the lock core axis hole, a positioning concave point B is arranged on a position in an inner polygon sleeve hole of the key, corresponding to the positioning salient point A, the number of the positioning concave points B can be larger than one, imitation difficulty of the key is improved, and simultaneously a guiding function of smoothly inserting the key into a polygon nut is achieved.