Combined sealing structure for grid rudder, grid rudder and rocket

• Main Authors: AN HONGYIN, WANG HUAGUANG, ZHANG GENGQING
• Format: Patent
• Language: Chinese; English
• Published: 18.04.2023
• Subjects: APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS,e.g. CANNONS; BLASTING; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HARPOON GUNS; HEATING; LAUNCHERS FOR ROCKETS OR TORPEDOES; LIGHTING; MECHANICAL ENGINEERING; PISTONS; SEALINGS; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model relates to the technical field of rocket equipment sealing structures, in particular to a combined sealing structure for a grid rudder, the grid rudder and a rocket. According to the combined type sealing structure for the grid rudder, the dustproof ring is arranged on the rudder shaft in the sleeving mode, and when the rudder shaft is installed in the installation groove, the dustproof ring can play a role in preliminarily sealing the installation groove; the flow blocking strip is fixed to the rocket body, and the flow blocking strip is suitable for being located on the side, away from the mounting groove, of the dustproof ring in the assembling state; in the axial direction of the rocket body, the flow blocking strip at least corresponds to the dustproof ring at the relative upper position of the rudder shaft, so that the dustproof ring can be further covered through the flow blocking strip, the double-layer covering structure guarantees the covering effect, a gap between the rudder shaft