Weld joint sealing performance detection device

The invention relates to the technical field of welding seam detection, in particular to a welding seam sealing performance detection device which comprises a walking frame base. The walking mechanism is arranged on the walking frame base and used for driving the walking frame base to move; the adsorption mechanism is arranged on the walking frame base and used for adsorbing the walking frame base to a ship body; the positioning mechanism is arranged on the walking frame base, and the positioning mechanism can be used for positioning a welding seam; and the sealing detection mechanism is arranged on the walking frame base, the sealing detection mechanism comprises a soapy water spraying assembly and a sealing detection assembly, and the soapy water spraying assembly is located in the sealing detection assembly and used for spraying soapy water to a weld joint. The device can achieve the automatic detection of the sealing performance of the welding seam, guarantees the detection accuracy, and improves the dete