RU208041U1 - Aircraft sliding door locking device - Google Patents

Abstract

The utility model relates to the field of aviation technology and can be used in the design of the locking mechanisms for the doors of helicopters and airplanes. The aircraft sliding door locking device comprises a locking device, outer and inner handles, which are connected to the locking device by means of rigid rods and rockers. At the same time, on the inner side of the door there is an inner upper rocker, which is mounted on a bracket, and an inner lower rocker, mounted on a bracket. At the same time, external top and bottom rocking chairs are fixed on the specified brackets, respectively. Rollers are installed on each external rocking chair. The locking device consists of a locking device integrated in the outer casing. At the same time, an external handle, an internal handle, a gear wheel are mounted on the outer case, coaxial with each other and located on the same shaft. Moreover, the gear wheel is engaged in a gear sector, which is coaxially and motionlessly fixed on the same shaft with the lever, and the lever is connected to the upper rod and the lower rod. EFFECT: increased reliability, improved ergonomics and operational characteristics of the locking device. 3 w.p. f-ly. 3 ill.

Description

The utility model relates to the field of aviation technology and can be used in the construction of doors for helicopters and airplanes.

Known sliding door of the cargo compartment of the helicopter (see "Helicopter MI-8. Technical description", M.- Mashinstroyenie, 1970, pp. 16-17, Fig. 16), which contains a frame and riveted to it outer and inner skin ... The door is equipped with two locks. In the middle part there is a turnkey lock for locking the door, which has an inner and outer handles. In the upper part of the door there is a pin lock for emergency release of the door, equipped with an inner and outer handles. The upper lock is connected by a cable with the middle lock, therefore, when the upper lock is triggered, the latch of the middle lock opens at the same time. On a passenger helicopter, the external emergency release handle of the sliding door is mounted at the rear for ease of use, flush with the main door opening handle.

Known is a door locking device for helicopter sliding doors (patent US2010064741, publ. 03/18/2010, E05B65 / 08), which is intended for translationally controlled sliding doors of helicopters, which are controlled by rails. The device comprises a toothed rack lock associated with the door structure and a recess which is associated with the fuselage structure and which can engage with the rack lock once the rack lock is moved by manually operated spacers into the closed the position in which the door is retracted into the doorway located in the fuselage structure. Then the door is locked.

There is a known mechanism for spring locking the helicopter cockpit door, which is closest to the claimed technical solution (patent CN110905302, publ. 03/24/2020, B64C1 / 14), which contains an external handle component, an internal handle component, a thrust component, a lock component and a lock bracket component ... The lock bracket component is mounted on the door frame, the lock body component is mounted on the car door structure, and the two components interact with each other to control the opening and closing of the car door. The outer handle component and the inner handle component are connected to the lock box component through a linkage component, the linkage component controls the interaction between the lock body component and the locking bracket component, and also allows the car door to open and close. By using the spring-loaded locking mechanism of the helicopter cockpit door, the force transmission path is straight, and the control force of the cockpit door opening can be greatly reduced; The built-in closure is highly reliable, light weight, low failure rate, and easy to install and maintain.

The reason that prevents the obtaining of the technical result indicated below when using known locking devices is a large force applied to all kinematic links, due to sliding friction between the locking element and the kinematic link fixed on the door opening, when the locking element moves along the inclined surface of the fixed link, and thereby pulling the door into the opening, overcoming the resistance of the crimped seals.

The technical problem solved by the claimed utility model is the creation of a locking device for the cabin door with the ability to open and close from the inside and outside, while the efforts applied to the handles are limited by the requirements of regulatory documents in accordance with the capabilities of the average person, and the compression of door seals is also provided for protection from the penetration of dust and water in droplets into the interior of the helicopter.

The technical result consists in improving the ergonomic and operational characteristics of the locking device for the sliding door of the aircraft, increasing the reliability by improving the protection of the lockable compartment from the penetration of dust and water in a droplet form.

To achieve the technical result, a locking device for a sliding door of an aircraft is proposed, comprising a locking device, external 10 and internal 15 handles, which are connected to the locking device using rigid rods and rockers 2, 3, \ in accordance with the claimed utility model, characterized in that on the inner side of the door is an inner upper rocker 2, which is installed on a bracket 4, an inner lower rocker 2 ', installed on a bracket 5, while on the outside on brackets 4 and 5, respectively, external upper 3 and lower 3 ' rockers are fixed, on each external rocker 3, 3 'are mounted rollers 8, 8', respectively, the locking device comprises a locking device, combined in the housing 1 outwardly, while the housing 1, the outer mounted handle outer 10, the handle inner 15, a gear 11, coaxial with each other and located on one shaft, and the gear 11 is in mesh with the gear sector 12, which coaxially and fixedly mounted on the same shaft with the lever 16, and the lever 16 is connected to the upper rod 6 and the lower rod 7.

In addition, the outer body 1 of the locking device contains a mechanical key insert of increased secrecy 13, which is equipped with a tooth 14, which is fixed on it.

In this case, two inserts 9 are fixedly fixed on the door opening from above and from below, each of which has a wedge-shaped groove 19, open on one side and closed on the other side, on the surface of which the rollers 8, 8 ' can move.

In addition, the outer handle 10 is equipped with a button 18, and the inner handle 15 is equipped with a lever 17.

The use of a locking device for a sliding door of an aircraft, containing a locking device integrated in the outer body 1, on which the outer handle 10, the inner handle 15, the gear wheel 11 are mounted, coaxial with each other and located on the same shaft, and the gear wheel 11 is in gear engagement sector 12, which is coaxially and fixedly fixed on the same shaft with the lever 16, and the lever 16 is connected to the upper rod 6 and the lower rod 7, is aimed at increasing reliability, improving the ergonomic and operational characteristics of the locking device.

Aircraft sliding door locking device

illustrated by drawings:

FIG. 1 - Sliding door with a locking device, inside view with the inner lining removed;

FIG. 2 - Section A-A, outer and inner handles, Section plane A-A is indicated in Fig. one;

FIG. 3 - View of the locking device outside the door with the conditionally removed outer skin.

The sliding door of the aircraft consists of a frame, outer and inner skins, spaced to the height of the frame and fixed to it. The door is installed on the aircraft cockpit on top and bottom rails. The locking device is located between the two skins.

The locking device consists of a locking device integrated in the outer body 1 (Fig. 2).

On the inner side of the door there is an inner upper rocker 2, which is installed on a bracket 4, an internal lower rocker 2' mounted on bracket 5. At the same time, outer upper 3 and lower 3 rockers are attached to the brackets 4 and 5, respectively'(Fig. 1). The system of kinematic links is represented by rigid rods 6 and 7, which are the transmission link from the handles to the rockers.

On each external rocker 3, 3 ' rollers 8, 8 ' are installed, respectively. On the door opening above and below, two inserts 9 are fixedly fixed, each of which has a wedge-shaped groove 19, open on one side and closed on the other side, on the surface of which rollers 8, 8 'of each of the external rockers 3, 3 ' can move. FIG. 1 shows the lower insert 9 engaging with the roller 8 ' in the locked position of the lock. The upper insert is not shown for the purpose of showing the structure of the rockers 2 and 3 located on the door.

The listed nodes are spaced along the rear edge of the door along the flight. On the edging of the opening along the contour of the door, crimped seals (not shown) are located and fixedly connected to the edging of the opening.

On the outer body 1, the outer handle 10 is mounted to the gear 11, and the gear sector 12, which is in engagement with it, the key insert 13, with the tooth 14 (Fig. 2), the inner handle 15, the lever 16. The outer and inner handles are coaxial. The outer handle 10 and the inner handle 15 are equipped with mechanical devices for fixing and unlocking them in two extreme positions - closed and open positions of the locking device. For these purposes, the outer handle 10 is equipped with a button 18. The inner handle 15 is equipped with a lever 17.

The handle locking mechanism is driven by pressing the lever 17 located on the inner handle, or by recessed button 18 located on the outer handle. A gear wheel 11 is located on the same axis as the handles. The outer handle 10, the inner handle 15, the gear wheel 11 are immovably connected to the shaft (not shown) and thus to each other.

On the same axis with the toothed sector 12 is a lever 16 (Fig. 1). The toothed sector 12 and the lever 16 are fixedly mounted on the same shaft (not shown) and have only one degree of freedom - rotation about a common axis. The lever 16 is connected to the upper rod 6 and the lower rod 7. Thus, the locking device by means of the upper rod 6 is connected to the rockers 2, 3 located on the upper bracket 4, and by means of the lower rod 7 it is connected to the rockers 2 ' and 3 ' located on bottom bracket 5.

In order to hinder unauthorized entry into the cab, the outer housing 1 of the locking device contains a fixed mechanical key insert of increased secrecy, 13 (Fig. 2) controlled by a special key included in its composition. With the appropriate orientation of its tooth 14, which is achieved by turning its mechanism with a special key, either rests on the tooth (stop) against the toothed sector 12, which ensures the locking of the entire locking device, or takes another extreme position and does not interfere with the rotation of the toothed sector 12, which allows turning the outer handle 10 or the inner handle 15, and thereby manipulate the locking device. FIG. 2 shows the locked position of the locking device.

On the brackets 4 and 5 on a common shaft movably fixed to the corresponding brackets, internal 2 2 ' and external rockers 3, 3 ' are located and fixedly connected to the shaft, which can rotate together on a common axis. The outer rocker contains roller 8.

An insert 9 with a wedge-shaped groove 19 and a roller 8 together with a rocker 3 (Fig. 1) represent a kinematic pair - a cam with internal engagement and a pusher.

The locking device is driven by a human hand by turning either the outer 10 or the inner 15 handles.

The transfer of the door from the open to the closed position is carried out as follows. When operating from the outside, it is necessary to move and press the door into the opening, press the central button located on the outer handle. When acting from the inside, it is necessary to move and pull the door into the opening, press the trigger 17 located on the inside of the inner handle 15 (Fig. 1). In this case, both handles 10, 15 will be unlocked for rotation. After that, it is necessary to turn the handle 15 from the position "vertically down" up to the stop (to the horizontal position). At the same time, through a gear pair - a gear wheel 11, a gear sector 12 (Figs. 2, 3), by rotating the handles 10 or 15, the lever 16 is turned, and it, longitudinally moving the rods 6 and 7, transfers the movement to the inner 2 rocking arms located on the upper brackets 4 and lower 5. The inner rocker 2, turning, turns the outer rocker 3 with the roller 8.

The roller 8, through the open side of the groove 19 of the insert 9, engages with the insert 9. Then, when the rockers 2 and 3 are rotated, which leads to the curvilinear movement of the roller 8, the forming surface of the roller 8 moves in contact with the surface of the groove 19 of the insert 9 (Fig. 1) from the open end of the groove 19 to the closed one. In this case, the roller 8, rolling along its rectilinear part of the wall like a pusher along a cam, creates a vector of movement of the door inside the doorway. The reaction force on the roller 8 from the side of the groove surface 19 of the insert 9 is transmitted through the brackets 4, 5 to the door.

In this case, the door compresses the seals (not shown) located on the door opening along its perimeter, and forms a contour that protects the internal volume from the penetration of dust and water in a droplet form. After locking the door locking device to prevent its unauthorized opening from the outside in the parking lot, turn the key insert 13 by turning it with a special key from one extreme position to another extreme position, at which its tooth (stop) 14 rests on the toothed sector 12, which locks both handles 10 and 15 from turning, as well as the entire locking device from moving.

To open the door from the outside, it is necessary to turn the key insert mechanism 13 from one extreme position to another, moving its tooth 14 away from the toothed sector 12 and thereby providing the possibility of rotation of the toothed sector 12 and the lever 16 coaxial with it; then press the central button 18 located on the outer handle 10 (Fig. 2). Then turn the outer handle 10 all the way down.

Further, to form an opening, it is necessary to move the door by hand by the handle 10 in the direction of opening.

To open the door from the inside, the key insert mechanism 13 must be previously rotated from the outside to the extreme position, in which its tooth 14 is retracted from the toothed sector 12, and thus the rotation of the toothed sector 12 and the lever 16 coaxial with it will be provided. press lever 17 (trigger). Then it is necessary to turn the inner handle 15 all the way down.

Further, to form an opening, it is required to move the door by hand by the handle in the direction of opening.

The entire mechanism is made in accordance with the requirements of the Aviation Regulations AP-29, as well as FAR-29.

Thus, the use of the proposed design makes it possible to achieve a technical result, while providing:

opening-closing from inside and outside;

a manual drive that allows you to manipulate the door locking mechanism with an effort on the handles limited by the capabilities of an average person;

when locked, the door is pulled into the opening, squeezing the seals to prevent water from entering the cab;

exclusion of accidental unauthorized opening and at the same time authorized opening of locks in one movement both from the inside and from the outside;

locking the handles 10 and 15 in the locked position, so that accidental support of a person on the handle will not lead to rotation and release of the locks;

from the outside, the opening action is reflexive.

In addition, the weight and dimensions of the locking device are minimized.

Claims (4)

1. A locking device for a sliding door of an aircraft, comprising a locking device, an outer (10) and an inner (15) handles, which are connected to the locking device by means of rigid rods (6, 7) and rockers (2, 3), characterized in that on the inner side of the door there is an inner upper rocker (2), which is installed on a bracket (4), an inner lower rocker (2'), installed on the bracket (5), while on the outside on the brackets (4 and 5), respectively, external upper (3) and lower (3'), on each external rocker (3, 3') installed rollers (8, 8') accordingly, the locking device consists of a locking device integrated in the outer body (1), while on the outer body (1) are mounted an outer handle (10), an inner handle (15), a gear wheel (11), coaxial with each other and located on one shaft, and the gear wheel (11) is meshed by the gear sector (12), which is coaxially and motionlessly fixed on the same shaft with the lever (16), and the lever (16) is connected to the upper rod (6) and the lower rod (7) ... 2. The locking device according to claim 1 , characterized in that the outer body (1) of the locking device contains a mechanical key insert of increased secrecy (13), which is fixed to it, and equipped with a tooth (14). 3. The locking device according to claim 1 , characterized in that two inserts 9 are fixedly fixed on the door opening above and below, each of which has a wedge-shaped groove (19), open on one side and closed on the other side, on the surface of which they can move rollers (8, 8 ' ). 4. A locking device according to claim 1 , characterized in that the outer handle (10) is provided with a button (18), and the inner handle (15) is equipped with a lever (17).

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