Automatic opening device for large-area pressure release valve in vehicle

Abstract

The invention discloses an automatic opening device for a large-area pressure release valve in an automobile. The device is characterized in that a pressure release hole is formed in an automobile tail door, a pressure release cover plate is arranged outside the pressure release hole, two parallel guide rails are arranged on the left side and the right side of the pressure release hole, and the pressure release cover plate can slide up and down along the guide rails under driving of an electric lifting push rod; and therefore the pressure release hole is opened and closed, the electric lifting push rod is located on the inner side of the automobile tail door, the lower end of the electric lifting push rod is hinged to the lower portion of the pressure release hole, and the upper end of the electric lifting push rod is hinged to the lower middle portion of the pressure release cover plate. The device is simple in structure and ingenious in design, abandons the conventional structural form that in-vehicle pressure release is conducted through hinged installation and turnover opening, creatively adopts the electric lifting push rod to push a pressure release plate in parallel up and down to conduct pressure release, can achieve constant-speed opening and closing of the pressure release valve, eliminates the problem that impact abnormal sound is generated when the pressure release valve is opened and falls back, and is especially suitable for large-area pressure release in the vehicle.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to an automatic opening device for a pressure relief valve in a vehicle, which is especially suitable for vehicles with large-area pressure relief. Background technique [0002] The pressure relief valve in the car is installed on the tailgate of the automobile, has a pressure relief hole on the tailgate, and is hingedly installed on the pressure relief valve at the position of the pressure relief hole. When the pressure inside the car is greater than the pressure outside the car, especially when the door is opened, the hinged pressure relief valve will automatically open. However, after the pressure relief valve is opened, it will automatically fall back on the tailgate, resulting in a large impact noise. [0003] The greater the pressure in the car, the greater the opening angle of the pressure relief valve, and the greater the impact noise when it falls back; in order to elim...

AI Technical Summary

Problems solved by technology

[0003] The greater the pressure inside the vehicle, the greater the angle at which the pressure relief valve will turn and open, and the greater the impact noise when it falls back; in order to eliminate the impact noise, the noise reduction There are various methods such as cotton and felt, but the effect is not very satisfactory.

At the same time, in order to achieve rapid pressure relief, a larger pressure relief hole is used and a large pressure relief valve is equipped. The greater the mass, the greater the impact noise when it falls back. Therefore, the size of the current pressure relief hole should not be too large. It is not suitable for large-area pressure relief. If large-area pressure relief is required, a structural form with multiple pressure relief holes is often used

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