Inside support tight type anode plate for electrostatic dust collector

An inside support tight type anode plate for an electrostatic dust collector belongs to the technical field of electrostatic dust collector equipment parts. The inside support tight type anode plate comprises a first beam and a second beam which are parallel to each other, a plurality of support components with retractable length and a barrel-shaped pole plate, wherein the plurality of support components are vertically fixed between the first beam and the second beam, a rectangular frame is formed by the plurality of support components and the first beam as well as the second beam, and the pole plate is sheathed on the external surface of the rectangular frame along the length direction of the first beam and the second beam so as to form a thin rectangular tube after being braced. When the plate is installed, the first beam and the second beam are compressed first, so that the length of all support components are contracted and the width of the rectangular frame is shortened; then the pole plate is sheathed o