Simple-to-assemble manual fire alarm button with telephone jack

The utility model relates to the technical field of fire alarms, and particularly discloses a simple-to-assemble manual fire alarm button with a telephone jack. The utility model discloses a telephone jack connector, which comprises a base, a middle buckle and an upper shell, the middle buckle is provided with a circuit board groove, a slot and a jack elastic sheet, the jack elastic sheet comprises a plugging part, a first elastic arm part and a second elastic arm part, the first elastic arm part and the second elastic arm part are arranged on two sides of the plugging part, the plugging part is plugged in the slot, the first elastic arm part extends into a telephone jack, and the second elastic arm part extends into the circuit board groove. A clamping block is arranged in the circuit board groove, the circuit board is pressed into the circuit board groove and limited by the clamping block, the circuit board enables the second elastic arm portion to abut against the interior of the circuit board groove, and