External control pilot type high-pressure pneumatic electromagnetic switch valve

Abstract

The invention belongs to pneumatic switch valves and in particular discloses an external control pilot type high-pressure pneumatic electromagnetic switch valve which mainly comprises a main valve body, a direct current electromagnet and a working port connector; a pilot valve is arranged on one side of the main valve body; a cavity is formed in the main valve body, communicates with a through hole, a working hole and an air inlet formed in the main valve body separately and is also provided with a control hole individually to communicate with a valve hole of the main valve body; a main valve element is arranged in the cavity and is provided with an opening control valve to communicate with the through hole; and a pilot valve element is pushed through power on and power off of the direct current electromagnet, and the main valve element can be pushed to move with matching of the action of high-pressure gas and an elastic element, thus the purpose of on-off of gas is realized. According to the external control pilot type high-pressure pneumatic electromagnetic switch valve, the sealing performance is good, and the electromagnetic valve can be ensured to have weaker opening pressure by adopting an external control type structure, thus rapid on-off of the high-pressure gas is realized. In addition, the external control pilot type high-pressure pneumatic electromagnetic switch valve is of a simple structure, is convenient to process and is suitable for large-scale industrialized manufacturing.

Description

technical field [0001] The invention belongs to the technical field of fluid control valves, and specifically relates to an externally controlled pilot-operated high-pressure pneumatic electromagnetic switch valve, which can meet the requirements of a high-pressure working environment, and has the characteristics of simple structure, reliable sealing, fast response speed, and low opening pressure. Background technique [0002] Pneumatic technology is widely used in agricultural machinery, automation industry, transportation, energy, chemical industry, aerospace, navigation, national defense and military because its working medium is compressed air, which has the advantages of convenient energy acquisition, clean and pollution-free, low cost, and easy operation. and other fields. [0003] In this field, a pneumatic system with a pressure lower than 1MPa is called a low-pressure pneumatic system, a pneumatic system with a pressure between 1MPa and 10MPa is called a medium-pres...

AI Technical Summary

Problems solved by technology

The externally controlled pilot-operated high-pressure pneumatic electromagnetic switch valve of the present invention can be used in a high-pressure environment and can respond quickly, and at the same time solves the problem that the traditional pilot-operated electromagnetic switch valve cannot realize the opening action under low pressure conditions, ensuring its working stability It also has the advantages of simple structure and reliable sealing, especially suitable for high-pressure pneumatic systems

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