A Time-sharing Driving Mechanism for a Cabin Door and Its Application

Abstract

A hatch door time-sharing drive mechanism, which has a support fixedly connected to the hatch structure, the support is hingedly connected to a compression spring assembly, the other end of the compression spring assembly is hinged to a crank, the crank is hinged to a rocker arm, and the rocker arm is fixed There are rollers connected, stopper I and stopper II are fixedly connected to both sides of the rocker arm, the crank is hingedly connected to the handle shaft, the handle shaft is hingedly connected to the hatch structure, the handle shaft is fixedly connected to a cam, and the cam is fixedly connected to a pin II, the joint is fixedly connected to the hatch structure, and the pin I is fixedly connected to the joint. It solves the problems in the prior art that the initial torque of the driving mechanism is too small, the force of the hatch handle is too large, and the force of the handle changes suddenly.

Description

technical field [0001] The invention relates to the field of civil aircraft door mechanisms, in particular to a door driving mechanism that is applied to a door of a civil aircraft and does not work in the closed position of the door, but works at a specific time during the opening process of the door. Background technique [0002] In order to improve the reliability of civil aircraft doors, reduce the probability of failure of electronic components, and avoid the situation that the doors cannot be opened in emergency situations, at present, most doors are opened by manual operation handles. In order to ensure that the vast majority of personnel can operate the hatch normally and improve the comfort of the hatch operation, the handle force of the hatch needs to be controlled within a certain range, which requires the design of a driving mechanism such as a booster spring to provide assistance for the opening of the hatch. In order to ensure the safety of the hatch and avoid ...

AI Technical Summary

Problems solved by technology

[0003] The present invention creates a time-sharing drive mechanism for the hatch door and its application. The mechanism does not work when the hatch door is closed, and starts to provide driving force when the hatch door is opened for a specific period of time. Through the above mechanism, the present invention solves the problem of Existing problems such as the initial torque of the driving mechanism is too small, the force of the hatch handle is too large, and the sudden change of the handle force is serious

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