Automatic feeding device for detection

The utility model relates to the technical field of vehicle urea detection, and discloses an automatic feeding device for detection, which comprises a feeding pipe and a connecting pipe, the connecting pipe is communicated and connected to the top of the feeding pipe, the connecting pipe is of a right-angle structure, a fixing ring is movably arranged on the surface of the feeding pipe, a cleaning mechanism is arranged in an inner cavity of the fixing ring, and the cleaning mechanism is connected with the connecting pipe. The cleaning mechanism comprises a cleaning sponge ring, and the cleaning sponge ring is movably installed in an inner cavity of the fixing ring. According to the automatic feeding device for detection, a filter element is closed, urea can be stored in a feeding pipe all the time, when the urea is extracted again, the urea can be rapidly extracted, when the feeding pipe is extracted from a storage tank, an adjusting lead screw is rotated, the adjusting lead screw pushes an arc-shaped clampin