SOLID END REINFORCEMENT OF HIGH PRESSURE HOSE Russian patent published in 2009 - IPC F16L33/207 

FIELD: engineering industry.

SUBSTANCE: invention refers to devices for connecting hoses with metal frame to solid end reinforcement, and can be used in transport and automobile industries, and other industries on hydraulically operated units. Solid end reinforcement of high pressure hose consists of rubber-reinforced hose with long-distance external and internal layers on its end, nipple with external annular protrusions provided in the power fixing area of the hose frame. External annular protrusion being the first one from the side of connection has a flattened top, and coupling has internal annular protrusions of various height thus forming, during crimping, the power fixing area of the hose frame. There are pressurisation zones and zones of reduced compression of hose. At that flattened part of the top of external annular protrusion of nipple, which is the first one from the side of connection, is cone-shaped, and outside the coupling there made is an annular triangular groove coinciding in one plane in the power fixing area of the hose frame with internal annular protrusion of coupling, which, prior to crimping, is located closer to higher external annular protrusion of nipple, which is the first one from connection, than to the second external annular protrusion of nipple by the value of coupling elongation during crimping thereof.

EFFECT: improving connection reliability.

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