A pipe end flange connecting structure

By using the positioning blocks and positioning grooves of the outer and inner protrusions, the installation difficulties of traditional flange connections in large-diameter or space-constrained scenarios are solved, realizing convenient and precise flange connections and improving installation efficiency and sealing performance.

CN224533755UActive Publication Date: 2026-07-21HEBEI TIIEC MASCH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI TIIEC MASCH CO LTD
Filing Date
2025-07-24
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional flange connections are time-consuming and labor-intensive to install in large-diameter or space-constrained scenarios. Their complex structure increases manufacturing costs and maintenance difficulty, and the disassembly and assembly process is cumbersome, affecting installation efficiency and sealing performance.

Method used

The design employs external and internal protrusions, and the precise alignment of the movable flange and connecting pipe is achieved through the cooperation of the positioning block and positioning groove, simplifying the installation process. Furthermore, the trapezoidal fit and through groove design improve the ease of operation and sealing performance.

Benefits of technology

It achieves circumferential and axial positional accuracy between the movable flange and the connecting pipe, simplifies the installation and disassembly process, improves installation efficiency and sealing reliability, and reduces operational difficulty and the risk of component damage.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224533755U_ABST
    Figure CN224533755U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of pipe orifice flange connecting structure, belong to flange connecting technical field, including connecting pipe and movable flange.The pipe orifice outer wall of connecting pipe is peripherally provided with multiple outer lugs, first gap is formed between adjacent two outer lugs, any outer lug is equipped with locating block, locating block is raised to rear side along axial direction;Movable flange is peripherally provided with multiple connecting holes for connecting bolt to pass, the inner wall of movable flange is peripherally provided with multiple inner lugs, the number of inner lug and outer lug is same, second gap is formed between adjacent two inner lugs, locating slot is provided on any inner lug;Inner lug passes from first gap, outer lug passes through second gap, after rotating movable flange to make inner lug lap on the rear side of outer lug, locating block is inserted in locating slot.The utility model provides a kind of pipe orifice flange connecting structure, ensures the relative position accuracy of movable flange and connecting pipe in periphery and axial direction, and it is more convenient to disassemble and assemble.
Need to check novelty before this filing date? Find Prior Art