Efficient heat dissipation mechanism for weak current box

The utility model provides a high-efficiency heat dissipation mechanism for a weak current box. The high-efficiency heat dissipation mechanism comprises a weak current box main box, the number of the circulating heat dissipation devices is two, and the circulating heat dissipation devices are fixedly installed at the upper end and the lower end of the weak current box main box. The circuit sliding tightening device is mounted in the circulating heat dissipation device; the upper end and the lower end of the transmission device are slidably connected with the line sliding tightening device through threads. The vertical circulation heat dissipation device is arranged in the device, the efficient heat dissipation effect can be achieved, and meanwhile the effect of enhancing air circulation in the device can be achieved; and the circuit sliding tightening device is further arranged in the device, circuits can be gathered and collected, meanwhile, the circuit mounting plate in the device is slidable, installation