Fixed warning support

The utility model relates to a fixed warning support which comprises an upper seat plate, a sealing ring, a rubber plate, a bottom basin and a fixed-pressure warning device, and is characterized in that the lower end of the upper seat plate is connected with the upper end of the rubber plate; the sealing ring is arranged at the connection edge of the lower end of the upper seat plate and the upper end of the rubber plate; the lower end of the rubber plate is connected with the inner side of the bottom basin; the fixed-pressure warning device is arranged at the middle position of a joint of the lower end of the rubber plate and the inner side of the bottom basin. The fixed warning support has the beneficial effect of simple structure; the support can be prevented from sliding; the fixed-pressure warning device is convenient to operate and accurate in measurement.