Cross-flow fan blade with composite spline curve blades

By combining the limiting sleeve and connecting parts, and using the reinforcing ring, the problem of inconvenient assembly and disassembly of the cross-flow fan blades is solved, achieving efficient and convenient installation and disassembly, enhancing the structural stability of the cross-flow fan blades, and reducing maintenance costs and failure risks.

CN224120420UActive Publication Date: 2026-04-14QINGDAO LANGDI IMPELLER MASCH CO LTD
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Patent Information

Application Number
CN202520768960.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-04-14
Estimated Expiration
2035-04-22

AI Technical Summary

Technical Problem

The inconvenience of disassembling and assembling traditional cross-flow fan blades leads to maintenance difficulties, which consume a lot of time and energy.

Method used

The design employs a combination of a limiting sleeve and connectors, along with a two-way lead screw and sliding plate. Through the precise engagement of the limiting pin and limiting hole, it enables rapid installation and convenient disassembly. The use of reinforcing rings and reinforcing rods enhances the overall structural strength.

Benefits of technology

It improves installation efficiency, reduces maintenance costs, ensures stable operation of the cross-flow fan blades, reduces the risk of failure, enhances structural strength, reduces component damage caused by vibration, and extends the uptime of the equipment.

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Abstract

The utility model provides a cross-flow fan with composite spline curve blades, which relates to the technical field of cross-flow fans and comprises a first connecting plate and a motor output shaft, and a connecting shaft is fixedly mounted on one side of the first connecting plate. By rotating the rotating block, matching with the threaded connection of the bidirectional lead screw and the sliding plate and the sliding design of the sliding plate and the sliding groove, maintenance personnel can conveniently control the clamping ring to move, more labor is saved in mounting and dismounting, meanwhile, through the accurate matching of the limiting insertion column and the limiting hole and the stable clamping of the motor output shaft by the clamping ring, the maintenance efficiency is improved, and the maintenance cost is reduced. Compared with the prior art, firm connection is guaranteed, stable operation of the cross-flow fan blade is ensured, the fault risk is reduced, in addition, the limiting insertion column can be easily pulled out, unlocked and taken down by reversely rotating the rotating block, efficient and convenient disassembly is achieved, the time and energy of maintenance personnel during equipment maintenance, cleaning or component replacement are greatly saved, and the maintenance cost is reduced.
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