Air inlet shielding device for reducing air inlet noise

The utility model discloses an intake shield for reducing intake noise, which comprises a first chamber, a second chamber, a first insert tube and a second insert tube, the first chamber is communicated with the second chamber, one side of the first chamber far away from the second chamber is provided with an air inlet, one side of the second chamber far away from the first chamber is provided with an air outlet, and the first insert tube is communicated with the second insert tube. The first insertion pipe is inserted into the first cavity through the air inlet, and the second insertion pipe is inserted into the second cavity through the air outlet. The length of the first insertion pipe inserted into the first cavity and the length of the second insertion pipe inserted into the second cavity are adjusted according to project development requirements, different structural silencing frequency ranges can be combined, and the silencing structure with specific frequency transmission loss meeting requirements can