Pressure-resistant quick sealing device and working method thereof

By designing a cylindrical sealing cover and a cage lifting structure driven by a cam handle, and utilizing limiting steel balls, the system can quickly seal various interfaces of the fuel tank, solving the problems of cumbersome operation and insufficient applicability of existing sealing devices, and improving sealing efficiency and convenience.

CN117847217BActive Publication Date: 2026-07-03FUJIAN FUAN MINDONG YANAN ELECTRICAL MACHINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUJIAN FUAN MINDONG YANAN ELECTRICAL MACHINE
Filing Date
2024-01-11
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing sealing devices are cumbersome, time-consuming, and labor-intensive when sealing fuel tank interfaces, and there is a risk of seal failure. They are not applicable to various interface types, which affects the efficiency of fuel tank pressure testing and leak detection.

Method used

Design a pressure-resistant rapid sealing device, including a cylindrical sealing cover, a cam handle, a retainer, and a limiting component. The retainer is driven to rise and fall by rotating the lifting component. The limiting steel balls and the sealing body are used to achieve rapid sealing of various interfaces. The operation is simple and labor-saving.

Benefits of technology

It achieves fast and reliable sealing of various types of interfaces, simplifies the operation process, improves sealing efficiency, and is suitable for sealing interfaces of fuel tanks, pressure vessels and pressure pipelines. It is versatile and convenient.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN117847217B_ABST
    Figure CN117847217B_ABST
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Abstract

This invention discloses a pressure-resistant, rapid sealing device and its operating method, comprising a cylindrical sealing cover over the outside of an interface, a cam handle mounted on top of the sealing cover, a retainer penetrating the interface inside the sealing cover, and a sealing element at the bottom of the sealing cover; the cam end of the cam handle abuts against the top surface of the sealing cover; the retainer is driven to rise and fall by a rotating lifting component, the upper end of which vertically moves through the top of the sealing cover and is hinged to the cam end of the cam handle, and a sealing body is provided between the upper periphery of the rotating lifting component and the sealing cover; the lower end of the retainer is provided with a limiting component that can extend radially outward and abut against the lower end of the interface, and the limiting component abuts against the lower end of the rotating lifting component as the retainer moves upward, thus achieving radial outward movement. This invention has a reasonable structural design, is applicable to various types of interfaces, requires no additional tools, is simple, labor-saving, and fast to operate, and can well meet the sealing requirements of various interfaces on pressure vessels such as fuel tanks and pressure pipelines.
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