Cover device for an accommodation container capable of adjusting the insertion depth of the discharge module

A cover device which is coupled to an opening portion of a container in which a photoresist aqueous solution is housed to seal the inside and discharge the photoresist aqueous solution to the outside, the cover device comprising:

• a guide module which is coupled to an upper end portion of the container, has an upward inclination at a predetermined angle, has an inclined protruding unit that protrudes, and is formed with a communication port through which the inside and the outside of the housing space communicate;
• a discharge module which is formed in a long pipe shape, and in which one side along a longitudinal direction penetrates the communication port and is disposed inside the container, the other side is exposed to the outside to form a discharge port;
• and
• a fixing module which is fixedly coupled to the inclined protruding unit in a state in which the other part of the discharge module penetrates, and is formed so that the discharge module is pressed toward the guide module,
• wherein a coupling position of the fixing module is adjusted along the longitudinal direction of the inclined protruding unit to adjust an insertion depth of the discharge module.