Remote control device, piezoelectric laser pointer, and remote control system

A piezoelectric laser pointer, comprising a housing, wherein the piezoelectric laser pointer further comprises:

• a power generator, mounted inside the housing and comprising a press mechanism and a power generating mechanism, wherein after being pressed by the press mechanism, the power generating mechanism is deformed under stress and generates electricity;
• a circuit controller, mounted inside the housing and electrically connected to the power generator;
• a signal transceiver, mounted inside the housing, electrically connected to the circuit controller, and configured to transmit signals, wherein the signal transceiver comprises a USB receiver configured to receive signals;
• and
• a laser emitter, mounted on the housing and electrically connected to the circuit controller, wherein a display screen is mounted on the surface of the housing;
• wherein the housing comprises an upper housing and a lower housing;
• an on-off key is mounted on the surface of the upper housing, the circuit controller is provided with a corresponding on-off contact, and the on-off key is electrically connected to the circuit controller through the on-off contact;
• the press mechanism comprises a press element and a reset element, the press element is a piezoelectric button, the piezoelectric button is mounted on the surface of the upper housing, a pressure end of the piezoelectric button is located on the surface of the upper housing, and a contact end of the piezoelectric button is located inside the housing;
• the reset element comprises two button support frames, the two button support frames are mounted on an inner wall of the upper housing, a spring-B sleeve is mounted on the surface of each button support frame, a spring B is nested in each spring-B sleeve, a spring-C sleeve is mounted on the top of the two springs B, a spring C is mounted inside the spring-C sleeve, one end of the spring C is connected to the contact end of the piezoelectric button, and the press element is in contact with the power generating mechanism through the springs B;
• the power generating mechanism comprises two cantilever beam pads, the two cantilever beam pads are mounted inside the lower housing, the two cantilever beam pads are provided with respective cantilever beams on sides facing each other, piezoelectric patches are mounted on an upper surface and a lower surface of each cantilever beam, the two cantilever beams are provided with respective springs A at the bottom, spring-A sleeves are mounted inside the housing, a steel ball is mounted inside each spring-A sleeve, a diameter of the steel ball is greater than a diameter of the spring A, the spring A is inserted in the spring-A sleeve, the bottom of the spring A is in contact with the steel ball, and the top of the spring A is in contact with the cantilever beam.