SU151568A1 - Airplane Lantern Control - Google Patents

Description

In the known mechanisms for controlling the airplane lantern, there is no automatic locking of the handle when the lamp is open, it is not safe to detach the handle ori by closing the lamp outside, and automatic duplicating opening of the lamp is not provided when there is no pressure in the pneumatic system.

The essence of the invention is that the axis connecting the inner and outer handles is made of a hollow, pressure-conducting EO internal handle, which is also made hollow and contains a spring-loaded stem, which locks the handle on the spring-loaded latches of the cabin in the “lantern” position. is open. A spring-loaded housing is installed on the inner handle, which serves to unlock the handle from the inside by unscrewing the latches. The outer part of the axis of the handle is terminated by a button that carries an overflow rod in the axis cavity, which serves to stratify the air pressure from the cavity of the inner hand to close the lamp of the detector.

FIG. Figure 1 shows schematically the mechanism for controlling the aircraft lantern in the position "the lamp is closed; in fig. 2 schematically shows the same mechanism, top view, in the position “the lamp is open, while the outer handle is conventionally shown in the position“ the lamp is closed.

The airplane's lantern control mechanism consists of the inner / and outer 2 arms fixed on the common hollow axis 3. The outer handle before the flight is retracted into a special poverty in the cabin casing.

Axis 3 is located in the fork bracket 4 on board the pilot's cabin. A swivel lever 5 is placed on the axis in the bracket fork, connected by means of an adjustable link 6 to the lamp control lever 7. The swivel lever provides for one-way communication of the inner or outer handle with the locks, turning with one handle when opening the locks, independently of the other

, Nb 151568- 2 handles. A hermetic hinge 8 with sealing rings 9 is attached on the axis below, which serves to supply the inner cavity of axis 3 and the internal air handle / pressure.

If there is an air pressure in the network, the lorshne rod 10 of the inner arm / is in the extreme right position, thereby securing the handle in the / position the lamp is open.

On the base 11 of the handle / there is a plug 12 with an axis i /. The plug 12 through the lever 14 and the sub-barrel cup 15 is connected to the lever of the air valve 16, by means of which pressure is applied to the opening and closing of the lamp.

To close the lamp both from inside the cabin and outside it, it is necessary to detach the inner handle 1, which is in the position of the lamp is open, and to turn it into the position of the lamp is closed, for which the arm is pulled / inside the cabin. the force of the spring 17 and the retraction of the latch 18, which stand the handle 1 in the position of the lantern open.

Unlocking the handle (when closing the lamp outside the production by pressing the button 19. The pressure from the cavity of the handle / is released into the atmosphere, and the brush 10 under the action of the spring 20 is removed inside the handle /, separating it.

When oTcj-TCTBHH air pressure in the system, the handle passes through the latches 18 and turns the swivel lever 5, which is connected to the lamp control lever of the flashlight 7, autonomously opens the flashlight locks without activating the pneumatic actuator.

The State Committee of the Council of Ministers of the USSR on aviation technology in its conclusion notes that the proposed mechanism for controlling the aircraft lantern is new, enhanced safety of the lamp, easeliness and reliability in operation, as well as constructive compactness.

Subject matter

1. A pneumatic drive lantern control mechanism, made in the form of two handles — an outer and an inner — mounted on a common axis and connected to a lock control valve a flashlight, characterized in that, for the purpose of automatically locking the handle with an open lamp, the axle, the connecting handles are made hollow, conducting air pressure in the internal handle, also having a cavity, with a spring-loaded stem located from it, acting from the pneumatic actuator and locking the handle in the position “flashlight open dinner cab latches unlocked from the inside by unscrewing them with the spring-loaded body of the inner grip.

2. Mechanism n-op. 1, characterized in that, in order to ensure the safety of the hand grip, when closing the lamp from the outside, the axis connecting the handles is provided with an external button acting on the overflow rod located in the axle, which serves to control the air pressure from the cavity inner grip. eight