Seal ring sealing with pressure and releasing without pressure

A sealing ring and sealing groove technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve problems such as non-compliance with irrigation requirements, leakage, and inability to meet sealing conditions, and achieve improved sensitivity and reliability. Reasonable, precise structure, simple and compact effect

CN1546888AInactive Publication Date: 2004-11-17山西征宇喷灌有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2004-11-17
Estimated Expiration
Not applicable · inactive patent

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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.
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Description

technical field

[0001] The invention belongs to a sealing connection part, and mainly relates to a structural scheme for improving sealing performance. Background technique

[0002] As is well known to the public, the sealing ring is a necessary component in a structure with sealing requirements, and is widely used in various occasions. However, it often cannot 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. 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. not meeting the requirements for proper irrigation. Contents of the invention

[0003] The technical problem to be solved by the present inve...

Examples

Embodiment Construction

[0012] The present invention will be further described below in conjunction with drawings and embodiments.

[0013] The meanings represented by the leading numbers in the attached drawings: 1 elastic ring body 2 semi-closed shell cavity 3 sealing tongue 4 annular opening

[0014] The first embodiment is a tongue sealing ring, which is used for quick joints of spherical pipes. Its specific size is φ144.5×15.8mm, and it weighs about 40g. The specific structure of the -1.5MPa sealing ring is shown in Figures 1 and 2.

[0015] The specific production of the sealing ring in this example is the same as that of the conventional sealing ring, except that the ring 1 used to maintain the shape and strength of the sealing ring during assembly maintains a matching gap of 0.25mm with the sealing groove of the joint, and the radial cross section of the ring section of the sealing ring is hollow. The cavity body has a wall thickness of 2.75mm. The cavity body is located at the inner end sec...