Video monitoring security device

The utility model discloses a video monitoring security device in the field of monitoring security devices, which comprises a monitoring camera main body, the top and two sides of the monitoring camera main body are provided with arc-shaped heat conduction frames in a sliding manner along the horizontal direction, the arc-shaped heat conduction frames are attached to each other, and one end of each arc-shaped heat conduction frame close to a lens on the monitoring camera main body is fixedly provided with an arc-shaped heat dissipation plate. The arc-shaped heat dissipation plate is located on the outer side of a lens on the monitoring camera body, vertical springs are fixed to the middles of the two ends of the outer surface of the top of the arc-shaped heat conduction frame, an arc-shaped protection frame is jointly fixed to the upper ends of the springs, and the arc-shaped protection frame and the arc-shaped heat conduction frame are slidably connected in the vertical direction. The monitoring camera main