Air volume adjusting valve for railway vehicle

Abstract

The invention relates to the technical field of air volume adjusting valves, in particular to an air volume adjusting valve for a railway vehicle, which comprises an air duct, a plurality of air blocking assemblies are mounted in the air duct and connected with the same connecting rod mechanism, an adjusting assembly is arranged at the top of the air duct and matched with the connecting rod mechanism, and the air blocking assemblies are connected with the connecting rod mechanism. A sharp tooth plate is installed on the air blocking assembly, rectangular openings are formed in the outer walls of the two sides of the air duct correspondingly, driving assemblies are installed in the rectangular openings and matched with the sharp tooth plate, and a plurality of sliding areas are arranged at the top and the bottom of the air duct correspondingly. The sliding area comprises two first straight sliding grooves formed in the inner wall of the air duct and a second straight sliding groove formed in the inner wall of the air duct, the two first straight sliding grooves are symmetric with the second straight sliding groove as the symmetric line, and the second straight sliding groove is perpendicular to the first straight sliding groove. Therefore, looseness is not easy to generate.

Description

technical field [0001] The invention relates to the technical field of air volume regulating valves, in particular to an air volume regulating valve for rail vehicles. Background technique [0002] Rail vehicles have become an important means of transportation for people to travel, and passengers have newer and higher requirements for the environmental comfort and air quality in the carriages. Therefore, new air vents are installed on rail vehicles to achieve indoor and outdoor air exchange, and the new air vents can be installed independently or connected to the air conditioning system. [0003] The Chinese utility model patent with publication number CN209022919U discloses an air volume regulating valve for rail vehicles, aiming to provide a device that makes the work of regulating air volume more convenient. A rectangular blade, the blades have multiple and can close the cylinder, the multiple blades collide with each other to form a rectangle when closing the cylinder, ...

AI Technical Summary

Problems solved by technology

[0004] Air volume control valves for rail vehicles generally adjust the air volume by adjusting the angle of the metal baffle. The wind load is heavy, and the air volume control valves for rail vehicles are generally electronically controlled. In order to better ensure the ventilation volume in the train, the air volume adjusted by the air volume control valves for rail vehicles is constantly changing. The adjustment process of the air volume control valves Due to the constant change of wind load, the wind load on a single adjusting plate is uneven, so the connection and transmission of all the baffles are easy to loosen, and the blades of the louvered air volume control valve are difficult to clean.

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