Combined railway rail-end insulation device

The utility model relates to track dividing insulation device for railway signal linking locking automation control, specifically a combined railway rail-end insulation device. The utility model is characterized in that the device consists of an insulation body (1) and a base (3); one end of the insulation body (1) is a large head and the other end is a small head (2); the small head (2) is a round mushroom head; the bottom L of round mushroom is between 0.5 and 1.5mm. The base (3) is provided with a groove (4) corresponding to the small head (2); the small head (2) is inserted into and connected with the groove (4). The groove (4) can be coattail shape or pyramid shape.