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Method and precautions for wheel chocks

The placement of wheel chocks should be carried out after the engine is stopped, the anti-collision lights are turned off, or after the signal from the signalman commanding the aircraft is issued; wheel chocks should not be placed when the aircraft is sliding

22

2023

/

05

How to Place Wheel Chocks in a Car

Select suitable wheel chocks materials based on the actual situation, such as bricks with suitable height, weight and hardness, rough stones on the surface, and special wheel chocks for special characteristics.

22

2023

/

05

Technical Implementation Elements of Gangway Door Locking Mechanism

In response to the shortcomings in the prior art, the present invention provides a gangway door lock locking structure, which solves the problem of the gangway door being difficult to close in the prior art.

22

2023

/

05

What are the locking mechanisms for the gangway door lock

The present invention provides a gangway door lock locking mechanism. The lock box component is rotationally equipped with a clamp block and a lock hook, and the movable end of the lock hook is provided with a gap. The bottom of the lock seat component is equipped with a lock pin shaft that pushes the lock hook while the gangway door rotates and engages in the gap of the lock hook. The clamp block is equipped with a limited protrusion, and the lock hook is continuously equipped with an adaptation groove that is adapted to the limit protrusion and achieves the fixation of the lock hook, The lock box component is equipped with a first reset component that drives the lock hook to rotate towards the lock pin shaft. The inner and outer lock disk components are both connected to the card block transmission, and the card block is connected with a second reset component for the card block rotation reset. When the lock hook is limited by the reset card block during the reset rotation process, the lock hook is in a tilted state. The present invention solves the problem of time-consuming and labor-intensive opening and closing process of gangway doors in existing technology, and has the effect of improving the opening and closing efficiency of gangway doors.

22

2023

/

05

What is the function of the total pitch control lever in a helicopter

Referred to as the total pitch rod, it is used to control the variation of the total pitch of rotor blades. The total distance control lever is generally arranged on the left side of the driver's seat and rotates up and down around the support axis. When the driver lifts the lever with his left hand, the automatic tilt device is raised as a whole, and the total pitch of the rotor blades is increased (i.e. the pitch of all blades is increased at the same angle), which increases the rotor tension. Conversely, the tension decreases, thereby controlling the helicopter's lifting and lowering motion. Usually, a rotary throttle control mechanism is set on the handle of the total pitch control lever to adjust the size of the engine throttle, in order to adapt the engine output power to the required power of the rotor after the total pitch change of the rotor blades. Therefore, this control lever is also known as the collective throttle lever.

05

2018

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12

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