Pressure relief devices for motor vehicle interiors

Abstract

The invention discloses a pressure relief device used for the interior of a motor vehicle. The pressure relief device used for the interior of the motor vehicle comprises transverse supporting ribs (16), a body peripheral framework (17), a valve block (06), valve block supporting pieces (13), a pressure relief device body part formed by a sealing ring (04) and water blocking eaves (01), and water blocking strips; and the water blocking strips are connected with the transverse supporting ribs (16) through water blocking strip root hinge structures (22), and are provided with clamping buckles, so that the transverse supporting ribs (16) and the valve block can be connected together through the clamping buckles. According to the pressure relief devices used for the interior of the motor vehicle, inverted-hook-shaped clamping buckles are integrated on the water blocking strips, the integrated type water blocking strips can achieve one time forming, self locking can be achieved in a direct pressing manner or the valve block is easily fixed in a simple welding manner. According to the installed and completed product, compared with the prior art, it can be completely avoided that water flow rushes into the back portion of the valve block and the sealing effect of the device is damaged.

Description

technical field [0001] The invention relates to a pressure release device used inside a motor vehicle, in particular to a device that releases the air pressure inside the motor vehicle and can isolate noise and organize dust and muddy water outside the motor vehicle, belonging to the technical field of motor vehicle parts . Background technique [0002] At present, when the motor vehicle is running, when the air conditioner is turned on, because the windows are closed, the air conditioner in the car continuously blows cold air, which leads to the need to discharge the excess gas inside the car to ensure the stability of the gas pressure in the car, which requires A special internal pressure release device is provided. However, when the current pressure release device is in use, water vapor and even water flow are likely to be generated when the air conditioner is turned on. The current pressure release device has a relatively simple structure, and the water flow is easy to f...

AI Technical Summary

Problems solved by technology

[0002] At present, when the motor vehicle is running, when the air conditioner is turned on, because the windows are closed, the air conditioner in the car continuously blows cold air, which leads to the need to discharge the excess gas inside the car to ensure the stability of the gas pressure in the car, which requires A special internal pressure release device is provided. However, when the current pressure release device is in use, water vapor and even water flow are likely to be generated when the air conditioner is turned on. The current pressure release device has a relatively simple structure, and the water flow is easy to fill the pressure release valve. The back damages the sealing effect of the device, causing the pressure release device to be ineffective and difficult to work accurately, resulting in unstable internal pressure of the motor vehicle, failure of pressure regulation, and even failure to effectively isolate the sound, dust, exhaust gas and muddy water outside the motor vehicle

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