The application relates to the technical field of sinking cavities, in particular to a drawer type automatic opening and closing sinking cavity structure, which comprises a sinking cavity body and a bottom plate fixed at the bottom of the sinking cavity body, a second rotating rod and a first rotating rod are sequentially and transversely connected in the inside of the front side of the bottom plate from left to right, the top end of the second rotating rod is connected with a
tungsten boat, and a slide rail mechanism is fixed at the middle position of the upper surface of the bottom plate. The drawer type automatic opening and closing sinking cavity structure is characterized in that the sliding connection between the
pulley under the moving
slide plate and the
fixed slide plate outside the slide rail mechanism is realized, then the automatic push-pull of the opening and closing door by the electric cylinder is realized through
electric signal control, the moving
slide plate and the opening and closing door are the same as the opening door mode of the drawer structure, the whole multi-hole position
crucible body can be pulled out from the sinking cavity body, an operation space is provided for the replacement, cleaning and maintenance of the multi-hole position
crucible body, the operator does not need to bend down and manually pull out the opening and closing door, and the convenience and safety of the operation process are improved.