Waterproof exhaust pipe for new-energy vehicle

Abstract

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.

Description

technical field [0001] The invention relates to the technical field of automobile exhaust pipes, in particular to a waterproof exhaust pipe for new energy automobiles. Background technique [0002] Automobile exhaust bellows, also known as automobile exhaust pipe hose, is installed in the exhaust pipe between the engine exhaust branch pipe and the muffler, so that the entire exhaust system is flexibly connected, thereby reducing vibration and noise, and is convenient. The function of installing and prolonging the life of the exhaust muffler system. It is mainly used for light vehicles, miniature vehicles and passenger cars. Its structure is that the double-layer bellows is covered with steel wire mesh sleeves, and the straight edge sections at both ends are covered with snap rings. In order to make the noise reduction effect better, the bellows can be equipped with telescopic knot or netting. The main material is stainless steel SUS304, and the ferrule and connecting pipe ...

AI Technical Summary

Problems solved by technology

[0003] Existing automobile exhaust pipes are mostly lying under the longitudinal beams, or arranged outside the frame, but these arrangements have always had the problem that the exhaust port is easy to enter water, especially when it rains in summer, many roads are prone to water accumulation. As a result, the vehicle cannot pass. If the vehicle is forcibly wading through water, there will be a danger of water entering the engine. However, most of the current automobile waterproof exhaust pipes use U-shaped pipe design or raise the exhaust port, which will seriously affect the vehicle. appearance, and because the exhaust pipe is lengthened, it will also cause poor exhaust, affect the normal exhaust emission of the engine, and weaken the engine power. Therefore, a waterproof exhaust pipe for new energy vehicles is needed to solve the above problems

Images