The invention discloses a waterproof
exhaust pipe for a new-energy vehicle. The waterproof
exhaust pipe comprises a water-preventing bin and an exhaust inner
pipe, wherein a fixing rack is welded to the top surface inside the water-preventing bin. The waterproof
exhaust pipe has the advantages that the waterproof exhaust
pipe is provided with a reset
leaf spring and a sealing part; when the vehicle drives normally,
tail gas is discharged from the exhaust inner
pipe, a rotary shaft is driven to rotate outwardly under the effect of
gas pressure, the reset
leaf spring is stressed, the rotary shaft drives a connector to rotate outwardly, the connector drives the sealing part to rotate outwardly to open a gap allowing the
tail gas to be discharged, and water does not enter the exhaust pipe dueto the effect of
gas pressure; when
tail gas
discharge stops, no gas passes the exhaust inner pipe, the reset spring drives the rotary shaft to rotate inwardly, the rotary shaft drives the connector to rotate inwardly, the connector drives the sealing part to block the exhaust outlet of the exhaust inner pipe, and water cannot penetrate the sealing part to enter the exhaust inner pipe; the waterproof exhaust pipe is evident in sealing effect, and the waterproofness of the exhaust pipe is increased evidently.