High-sealing large-rigidity deep well electromagnetic valve

By employing laser welding of a metal frame and metal coil housing structure, combined with a plastic insulation layer and a watertight connector, the problem of insufficient sealing and switching performance of existing solenoid valves in 3,000-meter depth detectors has been solved, achieving a solenoid valve design with high pressure resistance and high sealing performance.

CN224214810UActive Publication Date: 2026-05-08YUYAO SANLIXIN SOLENOID VALVE CO LTD
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Patent Information

Application Number
CN202520454616.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-05-08
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

Existing small safety solenoid valves are not suitable for the detector environment at a depth of 3,000 meters, cannot withstand high-pressure impacts, and have insufficient sealing and switching performance.

Method used

It adopts a metal skeleton and metal coil shell structure, and enhances rigidity and sealing through laser welding. Combined with plastic insulation layer, watertight connector and insulating sealant, spring groove and T-shaped pressure balance hole are designed to stabilize the movement of the moving iron core and increase the sealing and switching performance of the sealing cone.

Benefits of technology

The pressure resistance and sealing performance of the solenoid valve have been improved, the switching performance has been enhanced, stable operation under high pressure environment has been ensured, and the risk of leakage has been reduced.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model provides a high-sealing and large-rigidity deep well electromagnetic valve. The high-sealing and large-rigidity deep well electromagnetic valve comprises an electromagnetic coil assembly, a valve body, a movable iron core and a coil shell. The electromagnetic coil assembly comprises a metal framework, a medium inlet is formed in the upper end of the metal framework, and a pressure-resistant cavity communicated with the medium inlet is formed in the metal framework; the valve body is in threaded connection with the lower end of the metal framework, a valve port communicated with the pressure-resistant cavity is formed in one end of the valve body, a valve port sealing assembly is installed at the valve port, and the valve port sealing assembly is limited between the valve body and the metal framework; the movable iron core is slidably mounted in the pressure-resistant cavity, and a sealing cone used for opening and closing the valve port is arranged at the end, facing the valve port sealing assembly, of the movable iron core. The coil shell is sleeved outside the electromagnetic coil assembly, and the upper end and the lower end of the coil shell are respectively welded and fixed with the metal framework through welding parts; the high-sealing and large-rigidity deep well electromagnetic valve overcomes the defect that an existing small safety electromagnetic valve is not suitable for the depth of three kilometers.
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