Novel tunnel kiln door lifting limiting device

The utility model relates to a novel tunnel kiln door lifting limiting device, which is matched with a kiln door and a door frame for use, and structurally comprises a transmission mechanism and a limiting mechanism, the transmission mechanism comprises a limiting rod, a guide sleeve, a limiting ring, a limiting rod collision ruler and a collision ruler guide rail, and the bottom end of the limiting rod is fixedly connected with a limiting piece. An annular protrusion is arranged at the top end of the limiting rod, the limiting mechanism is composed of a first limiting switch, a second limiting switch, a limiting base, a reset spring and a pressing plate, when the kiln door does not reach or breaks through the highest point of the lifting position, the position of the kiln door can be accurately reflected, and production accidents caused by failure of the limiting switches are avoided. 本实用新型是一种新型隧道窑门提升限位装置，与窑门及门框配合使用，结构包括传动机构和限位机构，所述传动机构包括限位杆、导向套、限位环、限位杆撞尺和撞尺导轨，所述限位杆的底端固定连接有一个限位片，所述限位杆的顶端设有一个环状凸起，所述限位机构由第一限位开