Telescopic vehicle-mounted signal antenna support

According to the technical scheme, the telescopic vehicle-mounted signal antenna support comprises a shell, a moving box is arranged in the shell, the top end of the moving box extends to the outer side of the top of the shell, a moving plate is arranged in the moving box, the top end of the moving plate extends to the outer side of the top of the moving box, and the top of the moving plate is fixedly connected with an antenna body. A protection mechanism is arranged in the moving box and comprises a trapezoidal block, the trapezoidal block is fixedly connected to the bottom of the moving plate, two fixing rods are fixedly connected to the inner wall of the bottom of the moving box, and threaded rods are connected to the inner walls of the two sides of the moving box; the beneficial effects of the utility model are that the shaking degree of the antenna body can be reduced to the minimum through the cooperation of the first spring, the second spring and the third spring, thereby achieving the damping and buff