Axial sealing structure of lifting mast

The invention belongs to the technical field of masts, and particularly relates to an axial sealing structure of a lifting mast. The axial sealing structure comprises a connecting sleeve and a cylinder body which is sleeved with the connecting sleeve and can move up and down relative to the connecti...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	WU WEINONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CYLINDERS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAULING HEATING HOISTING HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD HYDRAULICS OR PNEUMATICS IN GENERAL LIFTING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PISTONS SEALINGS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention belongs to the technical field of masts, and particularly relates to an axial sealing structure of a lifting mast. The axial sealing structure comprises a connecting sleeve and a cylinder body which is sleeved with the connecting sleeve and can move up and down relative to the connecting sleeve, an annular groove is formed in the inner circumference of the connecting sleeve, a sealing ring is arranged in the annular groove, the outer circumferential end face of the sealing ring abuts against the inner wall of the annular groove, and the inner circumferential end face of the sealing ring tightly holds the outer circumferential face of the cylinder body; the sealing ring comprises a first main body section and a second sealing section, the first main body section is embedded inthe annular groove, the second sealing section comprises an outer sealing section and an inner sealing section, and the outer sealing section is formed by extending upwards from the first main body section, inclines towards