Seal ring sealing with pressure and releasing without pressure

Abstract

The invention is a kind of pressure-sealing and pressureless self drainage lock ring. The cross section of the lock ring is semitight shell cavity whose aperture is smaller than the cross section circumference, the lock tongue is at the aperture of the cavity, which is a suspending arm ring connected with the lock ring elastic ring, the suspending arm end of the ring is the edge of the semitight aperture, the thickness is decreased step by step from the root end of the suspending arm to the suspending arm end. The invention creates the relation between the lock deformation and the locked media pressure according to the locked pressure and the lock ring elastic; reserves the nonworking drainage channel with gap match; the lock tongue upgrades the sensitivity and the reliability of the action, the lock and drainage functions can be integrated into the same lock ring structure. The project is reasonable; the structure is simple and compact.

Description

Technical field [0001] The invention belongs to a sealing connection component, and mainly relates to a structural scheme for improving the sealing performance. Background technique [0002] The well-known sealing ring is a necessary component in a structure with sealing requirements, and is widely used in many occasions. However, it is often unable to meet the specific requirements of being in a sealed state under the working pressure of the sealed medium, and leaking in time when the working pressure is released or in a non-working state. For example, sprinkler irrigation pipelines must be disconnected from the pipeline during or after use due to the needs of movement or management. At this time, the accumulated water in the pipeline often leaks at the initially decomposed joints. Does not meet the irrigation requirements. Summary of the invention [0003] The technical problem to be solved by the present invention is to propose a technical solution for a pressure-free sealing...

AI Technical Summary

Problems solved by technology

However, it often cannot meet the specific requirements of being sealed under the working pressure of the sealed medium and leaking in time when the working pressure is released or in a non-working state.

If the sprinkler irrigation pipeline is in use or after use, it is necessary to remove the connection in the pipeline due to the needs of movement or management. At this time, the accumulated water in the pipeline will often leak concentratedly at the joint that was initially decomposed. Does not meet irrigation requirements

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