Combined pneumatic control valve

CN120684545AActive Publication Date: 2025-09-23SERVICE VALVE MFG (ZHEJIANG) CO LTD
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Patent Information

Application Number
CN202510944972.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-09
Publication Date
2025-09-23
Estimated Expiration
2045-07-09

AI Technical Summary

Technical Problem

The existing pneumatic stop valve has the problem that impurities adhere to the sealing surface, resulting in a decrease in sealing effect.

Method used

The combined pneumatic control valve is designed with sealing components and auxiliary structures, including a cut-off airbag, a sealing airbag, a movable ring and an electromagnetic coil, to achieve automatic cleaning and sealing of the sealing wall to avoid contamination by impurities.

Benefits of technology

The sealing performance and service life of the valve are improved, ensuring the stability and reliability of the sealing effect during the valve closing and opening process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120684545A_ABST
Patent Text Reader

Abstract

The invention relates to the field of control valves, in particular to a combined pneumatic control valve which comprises a valve body and a valve plate. A water passing cavity is formed in the valve body; a partition plate is arranged in the water passing cavity; a communicating hole with a vertical axis is formed in the partition plate; the upper end of the valve rod is connected with a pneumatic actuating mechanism; the pneumatic actuating mechanism is used for driving the valve plate to move up and down; a sealing mechanism is arranged on the side wall of the valve plate; a sealing mechanism is arranged on the side wall of the valve plate; the sealing mechanism comprises an intercepting assembly and a sealing assembly; the closure assembly comprises a closure ring and a closure air bag; after the intercepting air bag is inflated and expanded to abut against the sealing walls to block and intercept the communicating hole, the sealing assembly seals the communicating hole after cleaning impurities on the corresponding sealing walls on the upper side and the lower side of the intercepting ring, and the situation that the impurities adhere to the sealing walls, the sealing performance is influenced when the communicating hole is blocked, and the sealing effect is influenced when the valve is closed is avoided.
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Citation Information

Patent Citations

  • A multi-stage control pneumatic shut-off valve

    CN116989151B

  • Detachable fluorine lining check valve

    CN118757594A

  • The invention discloses a driving structure for controlling opening and closing of a high-flow stop valve

    CN208900808U

  • Altitude compensating bleed valve

    US20170356348A1