air flow cut-off device

Abstract

The invention discloses an airflow stop device. The airflow stop device comprises a shell consisting of an upper shell and a lower shell; the upper shell and the lower shell are spliced to form an air runner opened at two ends; flange plates are respectively formed at two ends of the shell; each flange plate is provided with fastening bolt counter bores for connecting the upper shell with the lower shell; two bolt counter bores in each flange plate are symmetrical about a vertical center surface of the axle of the flange plate; and a sealing flat pad is arranged between the spliced end surfaces of the upper shell and the lower shell. The airflow stop device further comprises an adjusting bolt wound with a sealing filler and upwards screwed from the bottom of the lower shell; the adjusting bolt is ejected to a flashboard in the lower shell; the top end of the flashboard is sleeved with a sealing ring; a spring base is arranged above the sealing ring; and two ends of a spring are respectively fixed on the spring base and the flashboard. The device is simple and compact in structure, liable to manufacture and maintain and excellent in economy and durability.

Description

technical field [0001] The invention belongs to the technical field of air flow control, and in particular relates to an element for controlling air flow interruption. Background technique [0002] In industrial control, compressed gas is usually used to push the actuator to achieve a certain function. Usually, a cut-off element is required for the connection between the actuators to control the on-off. Although the existing valve control effect is good, it is easy to damage And it is not easy to repair. The core component of the valve core is complex in structure, and it is easy to be damaged and difficult to repair. After the airflow enters the valve body, it will directly cause severe impact on the valve core. Over time, the valve core is prone to failure; on the other hand, in industrial control and Not all equipment components that control the flow of air flow require high airtight precision. The use of some existing gas valves not only cannot reflect their working perf...

AI Technical Summary

Problems solved by technology

[0002] In industrial control, compressed gas is usually used to push the actuator to achieve a certain function. Usually, a cut-off element is required for the connection between the actuators to control the on-off. Although the existing valve control effect is good, it is easy to damage And it is not easy to repair. The core component of the valve core is complex in structure, and it is easy to be damaged and difficult to repair. After the airflow enters the valve body, it will directly cause severe impact on the valve core. Over time, the valve core is prone to failure; on the other hand, in industrial control and Not all equipment components that control the flow of air flow require high airtight precision. The use of some existing gas valves not only cannot reflect their working performance, but also causes waste. Because the matching gap between parts is too small, it is also more likely to be damaged. For Extensive gas control with impurities is neither practical nor economical

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