Wedge gate valve facilitating impurity removal

By incorporating a rotating drum and agitator blades within the wedge gate valve, the problems of valve seat angle wear and difficulty in cleaning impurities are solved, achieving efficient impurity discharge and improved sealing.

CN224414390UActive Publication Date: 2026-06-26ZHEJIANG GUANLIN VALVE CO LTD
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Patent Information

Application Number
CN202521681771.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-08
Publication Date
2026-06-26
Estimated Expiration
2035-08-08

AI Technical Summary

Technical Problem

During use, the angular wear between the valve seats of existing wedge gate valves leads to a decrease in sealing performance. At the same time, impurities in the valve body are difficult to clean, affecting the sealing performance.

Method used

An accumulation tank and a rotating drum are installed inside the valve body. The outer wall of the rotating drum is equipped with stirring blades. The rotating drum is rotated by rotating the sealing bolt, and impurities are discharged through the impurity passage. The design of bottom stirring blades and top stirring blades improves the flowability and discharge efficiency of impurities.

Benefits of technology

It effectively loosens compacted impurities, improves the outflow efficiency of impurities, and enhances the sealing performance and ease of cleaning of the gate valve.

✦ Generated by Eureka AI based on patent content.
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Abstract

According to the technical scheme, the wedge type gate valve convenient to remove impurities is characterized by comprising a valve body, a valve plate, two valve seats and a gland, a storage tank located under the valve plate is arranged in the valve body, a rotary drum capable of rotating relative to the storage tank is connected to the bottom of the storage tank in an inserted mode, the interior of the rotary drum is hollow, and an inner cavity of the rotary drum is in a prism shape; the outer wall of the valve body is in threaded connection with a plugging bolt coaxial with the rotary drum, a driving rod matched with an inner cavity of the rotary drum is coaxially arranged at the end of the plugging bolt, and a plurality of impurity passing holes which are circumferentially distributed around the axis of the rotary drum and locally located in the bottom of the accumulation groove are formed in the outer wall of the rotary drum. A plurality of top stirring blades which are circumferentially distributed around the axis of the rotary drum and do not interfere with the impurity passing holes are arranged on the outer wall of the rotary drum, the diameter of the circumference where the ends, away from the outer wall of the rotary drum, of the plurality of top stirring blades are located is larger than the distance between the two glands, and the vertical height between the top stirring blades and the glands is smaller than the depth of the rotary drum inserted into the bottom of the storage tank; the problem that impurities are difficult to clean in the prior art is solved.
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