High-density SMD (Surface Mount Device) light-emitting diode

The utility model discloses a high-density SMD (Surface Mount Device) light-emitting diode, which belongs to the technical field of light-emitting diodes, aims at solving the problems that a diode is inconvenient to disassemble quickly and pins are inconvenient to be highly attached to a circuit board, and comprises a circuit board and a mounting disc, mounting boxes are fixed at two ends of the circuit board, and a movable groove is formed in the middle of each mounting box. Rotating rods are rotatably connected to the inner walls of the rotating grooves, connecting blocks are rotatably connected to the top ends of the rotating rods, clamping pieces are fixed to the opposite sides of the connecting blocks, reset springs are arranged at the bottom ends in the rotating grooves, sliding blocks are rotatably connected to the top ends of the rotating rods, and pushing rods are fixed to the opposite sides of the sliding blocks; mounting grooves are formed in four corners of the bottom end of the circuit board; acc