Crankshaft slider type drive mechanism and a tongue sucking masturbation cup and peristaltic anal plug

A crankshaft-slider drive mechanism, comprising a housing, a PCBA control board, a geared motor, a support guide mechanism and a crankshaft transmission mechanism;

• wherein the PCBA control board is arranged in the housing;
• wherein a motor mount is provided at one end of the housing, and the geared motor is installed in the motor mount;
• wherein the support guide mechanism is arranged on one side of the motor mount inside the housing;
• wherein the crankshaft transmission mechanism is rotatably arranged on the support guide mechanism, and one end of the crankshaft transmission mechanism is connected to a shaft of the geared motor;
• wherein the crankshaft transmission mechanism is provided with a plurality of sliders, an upper end of each of the sliders is provided with a sliding groove, each of sliders cooperates with the crankshaft transmission mechanism through the sliding groove, and each of sliders is symmetrically provided with sliding plates on both sides, and each of sliders slides with the support guide mechanism through the sliding plates on both sides;
• the geared motor drives the crankshaft transmission mechanism to rotate, and then drives the plurality of sliders to reciprocate up and down in sequence under a restriction of the support guide mechanism, forming a wave-like creeping motion.