Patent ID: 8853571

Claim:
A foot switch having a security mechanism, including: a main body having a cover, the cover having a top surface, and a protruding section protruding from the top surface; a circuit board provided in the main body; a pedal provided on the top surface of the main body; and a latch provided on the protruding section and adjacent to the pedal, the latch being positioned at an elevated position with respect to the pedal, the pedal being electrically connected to the circuit board via the latch; wherein the circuit board is electrically connected to the pedal when the latch and the pedal are pressed, wherein the pedal comprises a first key and a second key, the first key and the second key are exposed to the main body, the latch is provided on the main body between the first key and the second key, wherein the pedal comprises a first adjusting assembly and a second adjusting assembly, the first adjusting assembly comprises the first key and a first trigger switch connected to each other, the second adjusting assembly comprises the second key and a second trigger switch connected to each other, wherein the main body comprises a base and the cover covering the base, the cover is provided with a through-hole, the first trigger switch is received in the base to be electrically connected to the circuit board, the first trigger switch has a first recovering portion, the first key passes through the through-hole and abuts against the first recovering portion, and wherein the cover is provided with an annular block protruding from the periphery of the through-hole, the annular block is provided with an annular groove, the first key has a first supporting post and a first protruding block extending from the periphery of the first supporting post, the first protruding block is provided with a first trough, the first supporting post is disposed through the through-hole, the annular block and the first protruding block are engaged with the first trough via the annular groove.