Water cooling type insulating solid wall for narrow-gap TIG (Tungsten Inert gas Welding)

A water cooling type insulating solid wall for narrow-gap TIG (Tungsten Inert gas Welding) comprises a V-shaped left water cooling channel and a V-shaped right water cooling channel, wherein a first clamping arm is arranged on the left water cooling channel, and a second clamping arm is arranged on the right water cooling channel; a first positioning groove is formed in the inner side of the first clamping arm, and a second positioning groove is formed in the inner side of the second clamping arm; an electrode limiting square hole is formed between the left water cooling channel and the right water cooling channel; a first copper solid wall is arranged at the front side of the electrode limiting square hole, and a second copper solid wall is arranged at the rear side of the electrode limiting square hole; a first ceramic sheet and a second ceramic sheet correspondingly wrap the outer surfaces of the first copper solid wall and the second copper solid wall; when the two positioning grooves slide relative to an arc-shaped side edge of a plate type contact tube, the positions, relative to a sheet type tungsten electrode, of the first copper solid wall and the second copper solid wall, can be changed; circulating cooling water can flow through the V-shaped left water cooling channel and the V-shaped right water cooling channel to continuously cool the first copper solid wall, the second copper solid wall, the first ceramic sheet and the second ceramic sheet. The water cooling type insulating solid wall is simple in structure, and convenient to dismount and replace, and can effectively limit electric arc.