一种弹簧式紧急泄放人孔

CN224512139UActive Publication Date: 2026-07-17JIANGSU ZHIKE PETROCHEMICAL EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU ZHIKE PETROCHEMICAL EQUIPMENT CO LTD
Filing Date
2025-07-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing spring-loaded emergency release manholes suffer from poor safety and reduced sealing performance during use, and the sealing gasket clamping force is not adjustable.

Method used

A spring-loaded emergency vent manhole comprising a rotating assembly and a limiting assembly was designed. The manhole achieves tilting positioning of the cover and pressing of the sealing gasket through a rotating threaded shank and a worm gear mechanism. Combined with a tension spring and a limiting structure, the manhole prevents accidental closure of the cover and adjusts the sealing performance.

Benefits of technology

It improves the safety and sealing of the manhole, prevents the cover from closing accidentally, and can adjust the clamping force when the sealing gasket wears, ensuring the safety and sealing effect inside the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型涉及人孔技术领域,具体为一种弹簧式紧急泄放人孔,包括有用于人员进入的筒节,所述筒节的上方抵接有用于密封的密封垫,所述密封垫的上方连接有用于防护的盖板,所述筒节和盖板的一侧设置有用于旋转的旋转组件;所述旋转组件包括有筒节的一侧连接的用于对支臂限位的托板,所述托板内通过转轴转动连接有用于拉住盖板的支臂,所述支臂上滑动连接有用于拉住盖板的横板,所述横板连接在盖板的一侧。该弹簧式紧急泄放人孔,通过拉簧a拉动倾斜的盖板,防止盖板关闭,旋转螺纹柄外推异形卡板,防止异形卡板复位,来防止在检修时,盖板被锁住,提高安全性;通过旋转蜗杆a和蜗杆b,让盖板将密封垫压紧,提高密封性。
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