Handrail mounting base of elevator, elevator car and elevator

The invention relates to the technical field of elevators, in particular to a handrail mounting base of an elevator, an elevator car and an elevator. The handrail mounting base is mounted on a car wall of the elevator; the handrail mounting base comprises a main body base, a rear mounting part, a handrail decorative tube and a lower slot, wherein the rear mounting plate is fixedly connected to thefirst end of the main body base, and is fastened with the car wall through a connecting bolt; the handrail decorative tube is fixedly connected to the second end of the main body base; and the lowerpart is formed in the lower end of the first end of the main body base, and the lower part and the center point of the connecting bolt define an included angle through which a worker passes through the lower slot for screwing up the connecting bolt. According to the technical scheme adopted by the invention, the handrail mounting base has the beneficial effects that: the handrail mounting base issimultaneously connected to