Combination valve

By designing an angle combination valve with a ball and a valve disc installed in the upper and lower valve chambers respectively, and using the valve stem nut to drive the opening and closing of the ball and valve disc, combined with the imported sealing assembly and the valve disc sealing assembly, the problem of high installation cost of two sets of devices required for angle gate valves is solved, achieving high sealing performance and low cost.

CN117386841BActive Publication Date: 2026-07-10SHANGHAI VALVE FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI VALVE FACTORY
Filing Date
2023-11-03
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing angle gate valves require two control devices when used at pipeline bends, resulting in high installation costs and poor sealing performance.

Method used

Design an angle combination valve, in which a ball and a valve disc are installed in the upper and lower valve chambers of the valve body respectively. The opening and closing of the ball and valve disc are driven by the valve stem nut. Combined with the inlet sealing assembly and the valve disc sealing assembly, a double seal is achieved. A single drive device is used to reduce costs and improve sealing performance.

Benefits of technology

It effectively improves sealing performance, reduces overall cost, and extends the service life of the sealing structure through the design of elastic elements and O-rings, preventing media leakage.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117386841B_ABST
    Figure CN117386841B_ABST
Patent Text Reader

Abstract

The application relates to the field of valve technology and discloses an angle type combined valve which comprises a valve body, a valve clack, a ball, a valve rod and a valve rod nut, the valve body is provided with an inlet and an outlet, one end of the valve body near the inlet is provided with an upper valve cavity, one end of the valve body near the outlet is provided with a lower valve cavity, the upper valve cavity is communicated with the lower valve cavity, a valve seat is arranged on the valve body between the upper valve cavity and the lower valve cavity, the ball is located in the upper valve cavity, and the valve clack is located in the lower valve cavity; the valve rod penetrates through the ball and is connected with the valve clack at the end, the valve rod nut is rotationally fixed on the valve body, the valve rod is inserted into the valve rod nut and is in threaded cooperation with the valve rod nut, and the end of the valve rod nut is connected with the ball; the valve body is provided with a limiting seat for limiting the rotation of the valve rod at the valve seat. The ball valve and the stop valve are combined into one, two valves are driven to open and close simultaneously through one valve rod, the use is convenient, and the use cost can be effectively reduced.
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