A removable fluoroplastic centrifugal pump rear cover structure

By designing a centrifugal pump rear cover structure with synchronous disassembly and assembly components and fluoroplastic material, the tedious problem of having to remove bolts one by one in traditional pump covers has been solved, enabling efficient disassembly and stable connection with one hand, thus improving equipment maintenance efficiency and service life.

CN224432907UActive Publication Date: 2026-06-30ANHUI KAINAI PUMP & VALVE MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI KAINAI PUMP & VALVE MANUFACTURING CO LTD
Filing Date
2025-08-15
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The disassembly process of the existing centrifugal pump cover is cumbersome, requiring the removal of multiple bolts one by one, which affects the efficiency of equipment maintenance and repair.

Method used

Design a synchronous assembly/disassembly component that uses a knob to drive a worm gear to drive a worm wheel, enabling the synchronous rotation of four bolts. The reverse self-locking characteristic of the worm gear transmission ensures that the bolts do not loosen. Fluoroplastic material is used to enhance corrosion resistance and reduce weight.

Benefits of technology

It enables simultaneous disassembly of four bolts with a single hand, significantly improving disassembly efficiency, reducing downtime for maintenance, and enhancing operational stability and service life.

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Abstract

This utility model discloses a fluoroplastic centrifugal pump rear cover structure that is easy to disassemble, specifically relating to the field of centrifugal pump technology. It includes a pump cover body with four equidistantly distributed connecting blocks fixedly installed on the outer surface of the cover body. A shaft hole is formed in the center of the pump cover body, and a first mounting cavity is formed in the center of each connecting block. A rotation channel is formed between two adjacent first mounting cavities, and a second mounting cavity is formed in the center of the inner wall of one of the rotation channels. This fluoroplastic centrifugal pump rear cover structure, through a designed synchronous disassembly and assembly component, allows simultaneous rotation of four bolts by rotating a single knob, which drives a worm gear to rotate. The worm gear, in turn, drives a rotating rod and a bevel gear set to rotate, thus simultaneously rotating the four bolts. This enables one-handed operation to simultaneously control the separation of the four bolts from the pump body, completely solving the tedious problem of disassembling each bolt individually in traditional pump covers, significantly improving disassembly efficiency.
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