Quartz furnace door

The invention relates to the technical field of quartz furnace doors, and discloses a quartz furnace door which comprises a quartz furnace body, a quartz furnace door body and a fixing sleeve, a blocking mechanism is arranged on one side of the quartz furnace door body, and the blocking mechanism comprises a heating box, a partition plate, a memory spring, a moving rod and a first wedge-shaped plate. The quartz furnace door can be better closed and opened through the blocking mechanism, the quartz furnace door can be automatically locked in the machining and production process, then an operator cannot open the quartz furnace door when the internal temperature of the quartz furnace is not recovered to the normal temperature, and the problem that the quartz furnace door cannot be opened in the actual use process is solved. According to the quartz furnace door, the problems that after the quartz furnace door is closed, a solar cell silicon wafer is processed and produced by starting the quartz furnace to work, a