A high-seal outdoor fire hydrant with valve cover
By installing a combination structure of insulating foam, water-stop ring, groove, and sealing gasket on the valve cover of outdoor fire hydrants, the problems of aging and corrosion of sealing rings are solved, thereby improving the sealing effect and maintaining water pressure.
CN224281453UActive Publication Date: 2026-05-26QUANZHOU YUNHANG FIRE FIGHTING EQUIP CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU YUNHANG FIRE FIGHTING EQUIP CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
During prolonged use, the valve covers of existing outdoor fire hydrants fail to retain heat, leading to aging and corrosion of the sealing rings, resulting in water leakage and affecting water pressure and the spraying effect of fire hoses.
Method used
A high-sealing outdoor fire hydrant with a valve cover was designed. Insulating foam is filled inside the protective cover to insulate the sealing gasket, and a combination structure of water-stop ring, groove and sealing gasket is used to seal and prevent water leakage.
Benefits of technology
It effectively prevents the sealing gasket from aging and corroding, ensures the sealing effect, avoids water leakage, maintains water pressure, and ensures that the fire hose can spray from a distance.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224281453U_ABST
Abstract
This utility model discloses a high-sealing outdoor fire hydrant with a valve cover, comprising a hydrant body, a flange fixedly connected to the top of the hydrant body, a valve cover on the top of the flange, and multiple fastening bolts inserted between the valve cover and the flange. The bottom of the valve cover has two slots, in which a sealing gasket is engaged. The top of the flange has two water-stop rings fixedly connected, engaging with the slots and contacting the sealing gasket. The top of the flange has a protective cover filled with insulating foam. The bottom of the protective cover has multiple screws fixedly inserted, with the bottom ends of the screws threaded through the flange to connect to nuts. An actuating rod is rotatably mounted on the valve cover via an embedded bearing. This utility model, through the use of insulating foam, can insulate the valve cover, thereby insulating the sealing gasket and preventing damage to the sealing gasket from low temperatures, thus preventing aging and corrosion of the sealing gasket.
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