Tail gas purification pipe capable of preventing water ingress during wading driving

Abstract

The invention discloses a tail gas purification pipe capable of preventing water ingress during wading driving. The tail gas purification pipe comprises a purification pipe body, a tail gas washing device is arranged on the purification pipe body and comprises a washing cavity formed in the purification pipe body, an exhaust device is arranged on the right side of the tail gas washing device and comprises a piston cavity formed in the purification pipe body, a first exhaust port with a rightward opening is formed in the upper end of the right wall of the piston cavity in a communicating manner, and a second exhaust port with a rightward opening and an upper wall inclined towards the upper right is formed in the lower end of the right wall of the piston cavity in a communicating manner. Thetail gas purification pipe can automatically change an exhaust mode when a vehicle passes a wading road section and the water level submerges an exhaust pipe, the exhaust device changes the state with the buoyancy of water as power, it is ensured that external water will not enter an engine through the exhaust pipe while the smooth exhaust effect is not affected in the tail gas exhaust process, apower system of the vehicle is effectively protected, and the situation that the vehicle is shut down and trapped in water during wading driving is avoided.

Description

technical field [0001] The invention relates to the technical field of automobile exhaust gas purification devices, in particular to an exhaust gas purification pipe that can prevent water from entering during wading. Background technique [0002] With the improvement of living standards, there are more and more vehicles in the city, and the problem of automobile exhaust pollution is becoming more and more serious. Automobile exhaust contains a large amount of harmful substances and gases, which are serious and threatening to air pollution. People's health, most of the current exhaust gas purification pipes only have general purification and noise reduction functions. When the car is driving through a wading section, it often occurs that the exhaust pipe enters the water and the exhaust gas cannot be discharged normally and the engine is turned off, or even the water flows backwards. Entry into the engine can cause engine damage. The present invention sets forth a device ca...

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Problems solved by technology

[0003] Technical problem: Most of the current exhaust gas purification pipes only have general purification and noise reduction functions. When the car is driving on a wading section, water often enters the exhaust pipe, causing the exhaust gas to fail to discharge normally and the engine is turned off, and even water flows into the engine. cause engine damage

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