本發明係提供一種基於破壞後自動鎖定之鎖心結構，其包含：一鎖體，其設有二鎖心，該鎖體於所述鎖心間具有一凸輪，且所述鎖心與凸輪間具有一帶動塊，所述帶動塊內設有限位組件；帶動塊內設置有傳動器，傳動器係於軸向方向相互傳動接設；所述傳動器側緣設置有傳動塊，並分別於一側徑向凹設一移動槽及一限位單元；鎖心係於軸向之一端處設有一傳動片，該傳動片係對應傳動接設於帶動塊；傳動片係組接一傳動桿，傳動桿設置有一傳動銷，傳動銷係對應滑動接設於傳動器之移動槽內；藉此，於一端之鎖心被破壞以取出後，鎖心會被人力拉出，而同時軸向連動拉出傳動片、傳動桿及傳動銷，使傳動銷對應拉動傳動器，進而同時拉動另一端之傳動器，使另端傳動器之限位單元對位於其對應限位組件而自動鎖定，使於軸向方向被限位，同時，該另端之傳動塊係對應伸入於凸輪之滑槽，令鎖心遭破壞之一端的傳動器與帶動塊僅能空轉而無法開鎖，且由於傳動塊係由破壞人員經人力拉出，且鎖定之一端係位於被破壞之另側，故亦無法透過敲擊方式以破解自動鎖定之機制，藉以達致優良之防盜效果，而另端之鎖心仍可藉由其傳動器而傳動於凸輪而開鎖，不致使鎖體因其一端之鎖心遭破壞而反鎖。

The present invention provides a lock cylinder structure with automatic locking after damage, which includes: a lock body with two lock cylinders, where the lock body has a cam positioned between the two lock cylinders, and a driving block situated between the lock cylinder and the cam, with a limiting component inside the driving block; a transmitter is installed within the driving block, which transmits motion axially in alignment with each other; the side edge of the transmitter is equipped with a driving block, which features a radially recessed moving groove and a limiting unit on one side; one end of the lock cylinder has a driving plate, which is aligned and connected to the driving block; the driving plate is coupled with a driving rod, which includes a driving pin, and the driving pin is slidable engaged in the moving groove of the transmitter; thus, when one end of the lock cylinder is damaged and removed, the lock cylinder will be manually pulled out, simultaneously axially driving out the driving plate, driving rod, and driving pin, causing the driving pin to actuate the transmitter and in turn, pulling the transmitter at the other end. This action results in the limiting unit of the other end's transmitter aligning with its corresponding limiting component and automatically locking, thus providing axial limitation. Additionally, the driving block at the other end extends into the cam's sliding groove, preventing the lock cylinder from being unlocked by only rotating the driving block and cam at the damaged end. As the driving block is manually pulled out by the tamper, and the locking end is on the side opposite the damaged one, the automatic locking mechanism cannot be compromised through tapping, thus achieving excellent anti-theft protection. Meanwhile, the lock cylinder at the other end can still be unlocked via its transmitter acting on the cam, ensuring that the lock body does not become locked due to the damage at one end.