Security detection device

The utility model relates to the technical field of security and protection detection, in particular to a security and protection detection device, which comprises a device body, the device body comprises a support frame, the outer wall of the bottom end of the support frame is sleeved with a support seat, one side of the support frame is provided with a control panel, and one side of the top end of the support frame is connected with a detector; a supporting structure is connected into the supporting base and comprises a first spring rod, and a supporting plate is connected to the top end of the first spring rod. The end, extending out of the supporting seat, of the supporting plate is treaded downwards to extrude a first spring rod to contract, a limiting rod connected with the outer wall of the supporting plate in a sleeving mode is made to rotate in a fixing ring, and a supporting block connected with the other end of the supporting plate is made to move upwards; therefore, the top end surface of the supp