Rotary valve sealing device
The combination of columnar collar and sealing ring solves the problem of dust and dirt entering the shaft gap in the rotary valve, thus extending the service life of the device.
CN224336701UActive Publication Date: 2026-06-09CHANGZHOU AIRLAND TRANSMISSION MASCH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU AIRLAND TRANSMISSION MASCH CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-06-09
AI Technical Summary
Technical Problem
In rotary valves, material dust and external dust can easily enter the gap between the hollow rotating shaft and the shaft body, causing damage to the rotating shaft and shortening the service life of the device.
Method used
The structure adopts a combination of a columnar collar and a sealing ring. The collar is divided into first and second cavities by a limiting ridge. The sealing ring is stuck at the bottom of the first cavity. The spring head has an L-shaped protrusion that is stuck in the mounting hole. With the spring's tightening force, dust and dirt are prevented from entering the shaft gap.
Benefits of technology
It effectively prevents material dust and external dust from entering the shaft gaps, extending the service life of the rotary valve.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224336701U_ABST
Abstract
The utility model belongs to the technical field of rotary valve, concretely relates to a rotary valve sealing device, include: the inside center of cylindrical collar is provided with the protruding limit edge, the limit edge will the inside part of cylindrical collar divide into first cavity and second cavity, install the hole on the lateral wall of second cavity, the utility model discloses as the auxiliary device of rotary valve inside, can effectively prevent material dust and external dust and fall into the rotary valve for conveying material's rotating shaft inside, avoid the device jamming or shortening the service life during operation.
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