A needle valve and control valve stem integrated needle valve coupling

CN224515958UActive Publication Date: 2026-07-17ZHE JIANG LI WEI YOU BENG YOU ZUI YOU XIAN GONG SI
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHE JIANG LI WEI YOU BENG YOU ZUI YOU XIAN GONG SI
Filing Date
2025-07-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing needle valve structures, wear of the valve plug leads to a decrease in sealing performance, affecting control accuracy and equipment lifespan. Furthermore, the replacement process is complex and costly, especially in high-precision systems where equipment downtime is long.

Method used

Design a needle valve assembly that integrates the needle valve and control valve stem. By rotating the handle, the threaded rod is driven to move the movable valve stem up and down, adjusting the gap between the valve plug and the valve sealing groove. The threaded connection allows for easy replacement of the valve plug, simplifying the maintenance process.

Benefits of technology

It enables precise control of fluid flow, simplifies the valve plug replacement process, reduces maintenance difficulty and cost, and improves equipment maintenance efficiency and service life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224515958U_ABST
    Figure CN224515958U_ABST
Patent Text Reader

Abstract

The utility model relates to needle valve technical field especially is a needle valve and control valve stem integral type needle valve couple, including valve body, the fixed valve table is fixed to valve body upper end, the movable valve table is equipped with the threaded connection of fixed valve table upper end, the screw rod is equipped with the threaded connection in movable valve table inside, the handle is fixed to screw rod upper end, the replacement process of valve plug is very convenient, only needs to unscrew the sealing baffle and unscrews fixed threaded block, can easily separate valve plug and movable valve rod, does not need complicated dismounting step and professional tool, greatly shortens the maintenance time, reduced maintenance difficulty and cost. Meanwhile, after the quick replacement valve plug, through simple threaded connection can restore normal use, ensure the efficient operation of needle valve, improved equipment's maintenance efficiency and service life, has brought great convenience and economic benefits for the user.
Need to check novelty before this filing date? Find Prior Art