Glass breaker

A tempered glass crushing device comprising:

• a support unit (110) that is disposed in contact with a surface of a tempered glass to be crushed and has a tip movement hole (111a) formed in a plate surface thereof;
• a hitting unit (120) that is vertically movably coupled to an upper portion of the support unit (110) and has a crushing tip (123) for hitting the tempered glass through the tip movement hole (111a) while lowered to a central region;
• and
• a safety pin (140) inserted between the support unit (110) and the hitting unit (120) to prevent the hitting unit (120) from being lowered arbitrarily,
• wherein the support unit (110) includes:
• a support plate (111) through which the tip movement hole (111a) is formed to pass and which is disposed on the surface of the tempered glass to be crushed;
• a crushing tip guide tube (113) formed perpendicular to an outer periphery of the tip movement hole (111a) to guide lowering of the crushing tip (123);
• and
• a lower outer guide tube (112) disposed on a concentric circle with the crushing tip guide tube (113) outside the crushing tip guide tube (113), and
• the hitting unit (120) includes:
• an upper casing (121) pressed for lowering;
• a tip fixing shaft (122) that is formed vertically downward in a central region of the upper casing (121), accommodates the crushing tip (123) such that a lower end of the crushing tip (123) is exposed to a lower side, and is lowered along the crushing tip guide tube (113);
• and
• an upper outer guide tube (125) that is provided on a concentric circle with an outer periphery of the tip fixing shaft (122) and is lowered to be circumscribed to the lower outer guide tube (112) when the hitting unit (120) is lowered.