Anti-blocking stop valve for oil extraction wellhead
By using a collar to connect the pipe and seal it in the oil production wellhead shut-off valve, the problem of cumbersome and possible leakage in the filter screen replacement process is solved, and the simplicity of replacement and the sealing of connection is achieved.
CN222633210UActive Publication Date: 2025-03-18YANCHENG YUYANG PETROLEUM MASCH CO LTD
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Patent Information
- Application Number
- CN202421593841.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-07-05
AI Technical Summary
Technical Problem
The existing oil production wellhead shut-off valve needs to be removed multiple bolts during the filter replacement process, resulting in a long replacement time and possible leakage problems.
Method used
An anti-blocking shut-off valve for oil production wellhead is designed, connecting two pipes through a collar and sealing them at the connection, avoiding the need to remove bolts with specific tools.
Benefits of technology
The filter replacement process is simplified, making it more convenient, and ensuring the sealing of the connection, avoiding leakage and improving the economical use.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to the technical field of petroleum machinery, in particular to an anti-clogging stop valve for an oil extraction wellhead, which comprises a valve body and two limiting grooves, the right end of the valve body is fixedly connected with a connecting pipe I, a placing groove is formed in the connecting pipe I, a filter screen is slidably connected in the placing groove, and the limiting grooves are formed in the valve body. A plurality of clamping blocks are fixedly connected to the periphery of the filter screen, the clamping blocks are slidably connected to the interior of the containing groove, a lantern ring is in threaded connection with the exterior of a first connecting pipe, a second connecting pipe is in threaded connection with the right side of the interior of the containing groove, and one limiting groove is formed in the left side of the exterior of the first connecting pipe; the connecting structure has the beneficial effects that the lantern ring is used for connecting the two pipelines, and the attached position of the two pipeline openings is sealed, so that a plurality of bolts do not need to be disassembled and assembled through a specific tool, the filter screen is easy to replace, the connecting position does not leak, and the using economical efficiency is high.
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