Laser vertical plummet

The invention provides a laser vertical plummet which is composed of a top end cover shell, a plummet clamp spring, a pendulum bob bearing, a swing seat, a plummet, a laser and a lower end cover. Through adoption of a pendulum bob and high vibration, rapid and stable vertical downward emission of laser is realized. The pendulum bob is formed by numerical control machining, and a middle hole with adiameter of 6 mm is formed in the middle for installing the laser. A laser emission channel with a diameter of 2mm is formed below the laser. The pendulum bob is made of a high-specific-gravity H62 brass material and aims at achieving am effect of plumb bob. In addition, in terms of the structure, the pendulum bob is designed to be small in the upper portion and large in the lower portion so as to highlight the property of plumb bobs; swinging of the bearing is further optimized, that is, a high-frequency eccentric vibrator is additionally arranged at the bearing end, so that the sag is further guaranteed under the d