Tape measure with safety braking

A tape measure, comprising a tape measure housing (1) provided with an accommodating cavity, a tape core assembly (2) arranged in the accommodating cavity, and a tape belt assembly (3) wound around the tape core assembly (2), the tape measure housing (1) being further provided with a tape outlet for the tape belt assembly (3) to extend outwards, characterized in that:

• the tape measure comprises a braking assembly (4) and a driving assembly (5), the driving assembly (5) is movably mounted on the tape measure housing (1), the tape core assembly (2) is provided with a braking face (201), and in a state in which the driving assembly (5) moves to a braking position, the driving assembly (5) drives the braking assembly (4) to come into contact with the braking face (201) of the tape core assembly (2) and to press the same, thereby realizing braking;
• the driving assembly (5) comprises a first driving member (501) acting on the braking assembly (4), the first driving member (501) is arranged on one side of the braking assembly (4), and in a state in which the driving assembly (5) moves to the braking position, the first driving member (501) drives the braking assembly (4) to come into contact with the braking face (201) of the tape core assembly (2) and to press the same;
• the tape measure further comprises a guide groove (7) matched with the braking assembly (4);
• and
• a side end of the braking assembly (4) is slidably clamped in the guide groove (7).