Mounting bracket, curtain assembly and projector assembly

The utility model discloses a mounting support, a curtain assembly and a projector assembly, the mounting support comprises a support main body, and a clamping part and a connecting part which are arranged on the support main body, the clamping part comprises an elastic arm, the elastic arm and the support main body are arranged at intervals in the vertical direction, and the first end of the elastic arm is fixedly connected with the support main body; a clamping groove is formed between the elastic arm and the support body. The first end of the elastic arm is fixedly connected with the support body, the second end of the elastic arm is arranged in a swinging mode in the vertical direction, and when vehicle types are different and the thicknesses of the peripheries of the sunroofs are different, the size of the clamping groove can be adjusted in a self-adaptive mode according to the thicknesses of the peripheries of the sunroofs. The mounting bracket can be clamped and fixed at the periphery of the in-vehicle