Plug-in flowmeter mounting device and mounting method

The invention relates to a plug-in flowmeter installation device and method, the device comprises a supporting carrying platform, a first clamping device, a second clamping device and a bottom lifting device, the upper side of the bottom lifting device is provided with the supporting carrying platform through a rotating device, the supporting carrying platform is provided with a horizontal guide rail, and the horizontal guide rail is provided with a vertical guide rail; a vertical guide rail is arranged on one side of the horizontal guide rail through a sliding supporting plate, a first clamping device is arranged on the vertical guide rail, a second clamping device is arranged on the other side of the horizontal guide rail, hand wheel rotating mechanisms are connected to the bottom of the vertical guide rail and the bottom of the second clamping device, and positioning blocks are arranged on the upper portion of the first clamping device and the upper portion of the second clamping device. V-shaped supportin