Glass smasher with rapidly removable protective cover

A glass smasher with a rapidly removable protective cover, comprising:

• the glass smasher, mounted at an end of a portable object and comprising:
• a base coupled to the end of the portable object such that the base and the portable object form a single unit, wherein the base has a front end formed with an aperture;
• the base has an outer periphery circumferentially and concavely provided with an engaging groove adjacent to the front end of the base;
• an impact groove and a compression force application groove are sequentially formed, in a front-to-rear direction, in the base such that the aperture is in communication with the impact groove and the compression force application groove sequentially;
• and the aperture has a smaller diameter than the impact groove and the compression force application groove;
• a smashing rod having a front section with a front end formed with a smashing cone;
• a guide spring mounted around a periphery of the smashing rod at a position adjacent to a middle section and a rear section of the smashing rod, wherein the guide spring has a front end pressed against a portion of the smashing rod that is adjacent to the front section of the smashing rod, thereby forcing an axis of the smashing rod to be offset from an axis of the compression force application groove, pushing the smashing rod outward of the aperture, and consequently exposing the smashing cone of the front section of the smashing rod from a front end of the glass smasher;
• a guide block movably positioned in the compression force application groove, wherein the guide block has a front-end wall able to be pressed at least against a rear end of the guide spring, the front-end wall of the guide block is concavely provided with a guide groove, the guide groove matches the middle section and the rear section of the smashing rod in diameter so that a rear end of the smashing rod is able to extend through the guide groove, and the guide block has a front-end wall and a rear-end wall, either of which forms a curved guide surface;
• an offset striking block movably positioned in the compression force application groove, wherein the offset striking block has a front-end side pressed against the rear-end wall of the guide block and concavely provided with a striking groove corresponding to the guide groove such that, once extending through the guide groove, the rear end of the smashing rod is pressed against the front-end side of the offset striking block to prevent the rear section of the smashing rod from extending into the striking groove;
• and
• a compression spring positioned in the compression force application groove, wherein the compression spring has a front end pressed against a rear-end side of the offset striking block;
• wherein the compression spring is able to push the offset striking block toward the impact groove so that the front-end side of the offset striking block pushes the rear end of the smashing rod, thereby positioning the smashing rod in the impact groove and the compression force application groove, with the smashing cone exposed from the front end of the glass smasher through the aperture;
• when the smashing cone is pressed forcibly against a to-be-smashed object, the smashing rod is gradually displaced toward the compression force application groove, and the rear section of the smashing rod is gradually guided by the guide groove into alignment with an axis of the offset striking block;
• and when in perfect alignment with the striking groove, the rear end of the smashing rod extends into the striking groove instantly such that the offset striking block is forced outward by a huge elastic force stored in the compression spring and strikes the rear end of the smashing rod, thereby driving the smashing cone at a front end of the smashing rod to smash the to-be-smashed object forcibly;
• and
• the rapidly removable protective cover, comprising:
• a cover base concavely provided with a mounting space, wherein the cover base has a closed front end and a rear end formed with a mounting opening;
• the mounting opening is in communication with the mounting space and matches the outer periphery of the front end of the base in diameter so that the cover base is able to be mounted around the outer periphery of the front end of the base, allowing the front end of the base and the smashing cone of the front section of the smashing rod, which smashing cone is normally exposed from the front end of the base, to be completely stored and hidden in the mounting space;
• and the cover base is circumferentially formed with a plurality of engaging holes in communication with the mounting space;
• a sliding sleeve mounted around an outer periphery of the cover base in an axially slidable manner, wherein the sliding sleeve has an inner wall circumferentially and protrudingly provided with a packing ring;
• a packing spring mounted around the outer periphery of the cover base and positioned between the cover base and the sliding sleeve, wherein the packing spring has two ends pressed respectively against the cover base and the packing ring;
• and
• a plurality of engaging elements each movably positioned in a corresponding one of the engaging holes, wherein the packing spring causes the packing ring to push outer sides of the engaging elements such that the engaging elements are displaced inward of the mounting space through the corresponding engaging holes respectively, bringing inner sides of the engaging elements into engagement with a wall of the engaging groove, thereby securing the protective cover at the front end of the base against inadvertent detachment from the front end of the base.