Spring valve element sealing structure, design method thereof and rotary valve device

By designing the spring valve core sealing structure and precise flow channel control, the leakage and cross-contamination problems of traditional multi-channel rotary valve cores are solved, and efficient liquid transmission and long-life use are achieved.

CN120292282AActive Publication Date: 2025-07-11GUANGZHOU WEXIS BIOTECH
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Patent Information

Application Number
CN202510348585.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2025-07-11
Estimated Expiration
2045-03-24

AI Technical Summary

Technical Problem

When the traditional multi-channel rotary valve core rotates in the valve cavity, leakage is prone to occur due to wear of the seal and cross-contamination between the channels, which shortens the service life.

Method used

A spring valve core sealing structure is designed, including a rotor assembly, a sealing gasket, a spring assembly and a drive assembly. The compressed state between the rotor assembly and the main valve body assembly is maintained through the elastic force of the spring assembly, and combined with angle sensors and motor control, accurate flow channel docking and switching to avoid rotational friction and wear.

Benefits of technology

It effectively prevents solution leakage and extends service life. It does not cross-contaminate each other between channels. It has a simple and compact structure, which is easy to carry and install.

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Abstract

The invention belongs to the technical field of valves, and particularly relates to a spring valve element sealing structure and a design method thereof and a rotary valve device.The spring valve element sealing structure comprises a rotor assembly, the lower end of the rotor assembly rotates in a main valve body assembly, the upper end of the rotor assembly is slidably connected with a fixed upper cover through a sealing bearing, and a spring assembly is arranged between the rotor assembly and the fixed upper cover; the fixed upper cover is rotationally connected with the upper cover plate through a bearing sleeve, the upper cover plate is fixed to the upper end of the main valve body assembly, a large gear is fixed to the upper end of the rotor assembly and is in meshing transmission with the driving assembly, the upper end of the spring assembly abuts against the inner side of the fixed upper cover, and the lower end of the spring assembly abuts against the rotor assembly. The rotor assembly and the main valve body assembly are always kept in a compressed state, the situation of solution leakage caused by rotating friction abrasion is avoided, and the service life of the valve is prolonged.
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