An aircraft door lifting device

Abstract

The application belongs to the technical field of aircraft design, and particularly relates to an aircraft cabin door lifting device, which comprises a connecting piece, one end of the connecting piece is hinged to a door frame of a cabin door through two hinge seats, a power mechanism is arranged on the connecting piece and abuts against the cabin door, a swing mechanism is hinged to one end of the connecting piece away from the hinge seats, the swing mechanism is hinged to the cabin door, and a limiting mechanism is fixedly connected to the cabin door and the connecting piece. The application has simple structure and is convenient and fast to open and close the cabin door.

Description

Technical Field

[0001] This invention belongs to the field of aircraft design technology, and in particular relates to an aircraft cabin door lifting device. Background Technology

[0002] The opening process of a semi-blocking cabin door requires lifting the door to avoid a block. Typically, semi-blocking cabin doors have an independent lifting mechanism to complete this process. Furthermore, this lifting mechanism must hold the door in the lifted position after the lifting is complete, bearing the door's own weight to facilitate the subsequent opening process. Therefore, lifting mechanisms are usually quite complex and present many design challenges. Thus, there is an urgent need for an aircraft cabin door lifting device to solve these problems. Summary of the Invention

[0003] The purpose of this invention is to provide an aircraft door lifting device to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] An aircraft door lifting device includes:

[0006] A connector, one end of which is hinged to the door frame of the hatch via two hinge seats;

[0007] A power mechanism is mounted on the connector and abuts against the hatch;

[0008] A swing mechanism is hinged to the end of the connector away from the hinge seat, and the swing mechanism is hinged to the hatch.

[0009] The limiting mechanism is fixedly connected to both the hatch and the connecting member.

[0010] Preferably, the connector is configured in the shape of a U-shape with its opening facing the hatch, and the power mechanism, the swing mechanism, and the limiting mechanism are all located inside the connector.

[0011] Preferably, the power mechanism includes:

[0012] A screw is rotatably connected to the connector via a first bearing. The screw is perpendicular to the hatch, and one end of the screw away from the hatch extends out of the connector.

[0013] The turntable is coaxially fixed to one end of the screw that is connected to the connector;

[0014] A rotating sleeve is located inside the connector and sleeved on the outside of the screw. A second bearing is fixedly connected to the inner edge of the rotating sleeve. The second bearing is located at the end of the rotating sleeve away from the inner sidewall of the connector. The other end of the screw is fixedly connected to the inner edge of the second bearing. A sliding groove is provided on the outer sidewall of the rotating sleeve. The sliding groove is arranged along the length direction of the rotating sleeve.

[0015] A slip ring is slidably connected inside the rotating sleeve and threadedly connected to the screw.

[0016] A connecting block is slidably connected within the sliding groove. One end of the connecting block extends into the sliding groove and is fixedly connected to the outer wall of the slip ring. The other end of the connecting block extends out of the sliding groove and is fixedly connected to a push rod. The end of the push rod away from the connecting block abuts against the hatch.

[0017] Preferably, the swing mechanism includes;

[0018] The mounting plate is vertically fixed inside the connector;

[0019] Several rotating seats are fixed to the side of the mounting plate near the hinge seat, and the several rotating seats are arranged at equal intervals from top to bottom;

[0020] The second rotating ring is rotatably connected to the rotating seat via a short shaft, which is vertically arranged.

[0021] A horizontally positioned first rotating shaft, one end of which is fixed to the outer wall of the second rotating ring;

[0022] The first rotating ring is rotatably connected to the outer wall of the first rotating shaft;

[0023] A collar is fixedly connected to the first rotating ring via a connecting plate. Several connecting plates are arranged in parallel. The collar is rotatably connected to a second rotating shaft, which is fixedly connected to the hatch.

[0024] Preferably, the limiting mechanism includes:

[0025] A limiting sleeve is fixed to the mounting plate and on the same side as the rotating seat. The limiting sleeve is located between two adjacent rotating seats and is coaxial with the short shaft.

[0026] The rotating rod is slidably connected inside the limiting sleeve, and the rotating rod does not disengage from the limiting sleeve.

[0027] A limiting groove is vertically formed on the side wall of the limiting sleeve, the limiting groove is close to the hatch, and the top end of the limiting groove passes through the top end of the limiting sleeve.

[0028] A horizontally arranged sliding cylinder is slidably connected in the limiting groove, and one end of the sliding cylinder extends into the limiting sleeve and is fixedly connected to the outer wall of the rotating rod.

[0029] A sliding rod is slidably connected inside the sliding cylinder, with one end of the sliding rod extending out of the sliding cylinder and fixedly connected to the hatch, and the sliding rod does not detach from the sliding cylinder.

[0030] Preferably, a roller is rotatably connected to the end of the push rod away from the connecting block, and the roller makes rolling contact with the hatch.

[0031] Compared with the prior art, the present invention has the following advantages and technical effects:

[0032] When the hatch is opened, the power mechanism is first rotated to push the hatch. The hatch is then lifted by the swing mechanism. At this time, the limit mechanism restricts the hatch to only be lifted and not to be tilted. When the hatch is lifted to the limit position, the hatch is tilted to open. The limit mechanism restricts the hatch to only be tilted and not to be lowered, thus keeping the hatch in the open state.

[0033] When closing the hatch, the hatch is flipped closed. When the hatch is rotated to its limit position, the power mechanism is rotated in the opposite direction. At this time, the limit mechanism restricts the hatch to only be raised and not flipped. When the power mechanism moves to its limit position, the hatch sinks and closes under its own gravity.

[0034] The invention has a simple structure and the hatch is easy and quick to open and close. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is the front view of the present invention;

[0037] Figure 2 This is a schematic diagram of the swing mechanism in this invention;

[0038] Figure 3 This is a schematic diagram of the limiting mechanism in this invention;

[0039] Figure 4 This is a schematic diagram of the power mechanism in this invention;

[0040] The components are as follows: 1. hatch; 2. connector; 3. mounting plate; 4. limiting sleeve; 5. first rotating shaft; 6. first rotating ring; 7. second rotating ring; 8. rotating seat; 9. hinge seat; 10. second rotating shaft; 11. connecting plate; 12. turntable; 13. first bearing; 14. rotating sleeve; 15. push rod; 16. roller; 18. slip ring; 19. connecting block; 20. second bearing; 21. sliding groove; 22. short shaft; 23. collar; 24. rotating rod; 25. limiting groove; 26. slide cylinder; 27. slide rod; 28. screw. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] Reference Figures 1 to 4 This invention discloses an aircraft cabin door lifting device, comprising:

[0044] Connector 2, one end of connector 2 is hinged to the door frame of hatch 1 via two hinge seats 9;

[0045] The power mechanism is mounted on the connector 2 and abuts against the hatch 1;

[0046] The swing mechanism is hinged to the end of the connector 2 away from the hinge seat 9, and the swing mechanism is hinged to the hatch 1;

[0047] The limiting mechanism is fixedly connected to both the hatch 1 and the connecting piece 2.

[0048] When the hatch is opened, the power mechanism is first rotated to push the hatch 1. The hatch 1 is lifted by the swing mechanism. At this time, the limiting mechanism restricts the hatch 1 to only be lifted and not to be tilted. When the hatch 1 is lifted to the limit position, the hatch 1 is tilted to open the hatch 1. The limiting mechanism restricts the hatch 1 to only be tilted and not to be lowered, so that the hatch 1 is kept in the open state.

[0049] When closing hatch 1, hatch 1 is flipped closed. When hatch 1 is rotated to its limit position, the power mechanism is rotated in the opposite direction. At this time, the limiting mechanism restricts hatch 1 to only be raised and not flipped. When the power mechanism moves to its limit position, hatch 1 sinks and closes under its own gravity.

[0050] For a further optimized solution, the connecting member 2 is arranged in a U-shape with the opening facing the hatch 1, and the power mechanism, the swing mechanism and the limiting mechanism are all located inside the connecting member 2.

[0051] For a further optimized solution, the power mechanism includes:

[0052] A screw rod 28, rotatably connected to the connecting member 2 through a first bearing 13, the screw rod 28 is arranged perpendicular to the hatch 1, and one end of the screw rod 28 away from the hatch 1 penetrates through the connecting member 2;

[0053] A turntable 12, coaxially and fixedly connected to one end of the screw rod 28 that penetrates through the connecting member 2;

[0054] A rotating sleeve 14, located inside the connecting member 2 and sleeved outside the screw rod 28. A second bearing 20 is fixedly connected to the inner edge of the rotating sleeve 14. The second bearing 20 is located at one end of the rotating sleeve 14 away from the inner side wall of the connecting member 2. The other end of the screw rod 28 is fixedly connected to the inner edge of the second bearing 20. A sliding groove 21 is formed on the outer side wall of the rotating sleeve 14, and the sliding groove 21 is arranged along the length direction of the rotating sleeve 14;

[0055] A slip ring 18, slidably connected inside the rotating sleeve 14 and threadedly connected to the screw rod 28;

[0056] A connecting block 19, slidably connected in the sliding groove 21. One end of the connecting block 19 extends into the sliding groove 21 and is fixedly connected to the outer side wall of the slip ring 18. The other end of the connecting block 19 penetrates through the sliding groove 21 and is fixedly connected to a push rod 15. One end of the push rod 15 away from the connecting block 19 abuts against the hatch 1.

[0057] By rotating the screw rod 28 through the turntable 12, the screw rod 28 drives the slip ring 18 to move along the length direction of the sliding groove 21 in the sliding groove 21, and further drives the push rod 15 to apply a force to the hatch 1 through the connecting block 19, so that the hatch 1 is opened under the action of the swing mechanism.

[0058] For a further optimized solution, the swing mechanism includes;

[0059] A mounting plate 3, vertically and fixedly connected inside the connecting member 2;

[0060] A plurality of rotating seats 8, fixedly connected to the side of the mounting plate 3 close to the hinge seat 9, and the plurality of rotating seats 8 are arranged at equal intervals from top to bottom;

[0061] A second rotating ring 7, rotatably connected inside the rotating seat 8 through a short shaft 22, and the short shaft 22 is arranged vertically;

[0062] A first rotating shaft 5 arranged horizontally, and one end of the first rotating shaft 5 is fixedly connected to the outer side wall of the second rotating ring 7;

[0063] A first rotating ring 6, rotatably connected to the outer side wall of the first rotating shaft 5;

[0064] The collar 23 is fixedly connected to the first rotating ring 6 via the connecting plate 11. Several connecting plates 11 are arranged in parallel. The collar 23 is rotatably connected to the second rotating shaft 10, which is fixedly connected to the hatch 1.

[0065] Push rod 15 applies force to hatch 1, causing hatch 1 to rise upwards under the action of the first rotating ring 6 and connecting plate 11. When hatch 1 reaches its limit position, the distance between hatch 1 and connecting piece 2 is at its maximum. At this point, the limiting mechanism no longer prevents hatch 1 from rotating around the short axis 22, and hatch 1 rotates around the short axis 22 to open.

[0066] The solution has been further optimized, and the limiting mechanism includes:

[0067] The limiting sleeve 4 is fixedly connected to the mounting plate 3 and is on the same side as the rotating seat 8. The limiting sleeve 4 is located between two adjacent rotating seats 8 and is coaxially set with the short shaft 22.

[0068] The rotating rod 24 is slidably connected inside the limiting sleeve 4, and the rotating rod 24 does not disengage from the limiting sleeve 4.

[0069] The limiting groove 25 is vertically opened on the side wall of the limiting sleeve 4. The limiting groove 25 is close to the hatch 1, and the top of the limiting groove 25 penetrates the top of the limiting sleeve 4.

[0070] A horizontally arranged sliding cylinder 26 is slidably connected in a limiting groove 25. One end of the sliding cylinder 26 extends into the limiting sleeve 4 and is fixedly connected to the outer wall of the rotating rod 24.

[0071] The slide rod 27 is slidably connected inside the slide cylinder 26. One end of the slide rod 27 extends out of the slide cylinder 26 and is fixedly connected to the hatch 1. The slide rod 27 does not come out of the slide cylinder 26.

[0072] In the initial state, the slide cylinder 26 is located at the bottom of the limiting groove 25. The slide cylinder 26 moves upward as the hatch 1 is lifted. When the hatch 1 is lifted to the limit position, the slide cylinder 26 disengages from the limiting groove 25. At this time, the slide cylinder 26 can rotate inside the limiting sleeve 4. The slide cylinder 26 abuts against the top of the limiting sleeve 4 and bears the weight of the hatch 1, preventing the hatch 1 from sinking under its own weight.

[0073] In a further optimized design, the end of the push rod 15 furthest from the connecting block 19 is rotatably connected to a roller 16, which makes rolling contact with the hatch 1.

[0074] This design prevents the push rod 15 from directly contacting the hatch 1 and causing damage to the hatch 1.

[0075] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0076] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An aircraft cabin door lifting device, characterized in that, include: Connector (2), one end of which is hinged to the door frame of the hatch (1) via two hinge seats (9); The power mechanism is mounted on the connector (2) and abuts against the hatch (1); A swing mechanism is hinged to one end of the connector (2) away from the hinge seat (9), and the swing mechanism is hinged to the hatch (1); The limiting mechanism is fixedly connected to both the hatch (1) and the connector (2); The power mechanism includes: The screw (28) is rotatably connected to the connector (2) via the first bearing (13). The screw (28) is perpendicular to the hatch (1), and one end of the screw (28) away from the hatch (1) passes through the connector (2). The turntable (12) is coaxially fixed to one end of the screw (28) from which the connector (2) is transmitted; A rotating sleeve (14) is located inside the connector (2) and sleeved on the outside of the screw (28). A second bearing (20) is fixed to the inner edge of the rotating sleeve (14). The second bearing (20) is located at one end of the rotating sleeve (14) away from the inner wall of the connector (2). The other end of the screw (28) is fixed to the inner edge of the second bearing (20). A sliding groove (21) is provided on the outer wall of the rotating sleeve (14). The sliding groove (21) is arranged along the length direction of the rotating sleeve (14). The slip ring (18) is slidably connected inside the rotating sleeve (14) and threadedly connected to the screw (28); A connecting block (19) is slidably connected in the sliding groove (21). One end of the connecting block (19) extends into the sliding groove (21) and is fixedly connected to the outer wall of the slip ring (18). The other end of the connecting block (19) extends out of the sliding groove (21) and is fixedly connected to a push rod (15). The end of the push rod (15) away from the connecting block (19) abuts against the hatch (1). The swing mechanism includes: Mounting plate (3) is vertically fixed inside the connector (2); A plurality of rotating seats (8) are fixed to the side of the mounting plate (3) near the hinge seat (9), and the plurality of rotating seats (8) are arranged at equal intervals from top to bottom; The second rotating ring (7) is rotatably connected to the rotating seat (8) via a short shaft (22), which is vertically arranged; A horizontally positioned first rotating shaft (5) has one end fixed to the outer wall of the second rotating ring (7); The first rotating ring (6) is rotatably connected to the outer wall of the first rotating shaft (5); The collar (23) is fixedly connected to the first rotating ring (6) via a connecting plate (11). Several connecting plates (11) are arranged in parallel. The collar (23) is rotatably connected to a second rotating shaft (10), which is fixedly connected to the hatch (1). The limiting mechanism includes: The limiting sleeve (4) is fixed on the mounting plate (3) and on the same side as the rotating seat (8). The limiting sleeve (4) is located between two adjacent rotating seats (8) and is coaxial with the short shaft (22). The rotating rod (24) is slidably connected within the limiting sleeve (4), and the rotating rod (24) does not protrude from the limiting sleeve (4). The limiting groove (25) is vertically formed on the side wall of the limiting sleeve (4). The limiting groove (25) is close to the hatch door (1), and the top end of the limiting groove (25) penetrates through the top end of the limiting sleeve (4). The horizontally arranged sliding cylinder (26) is slidably connected within the limiting groove (25). One end of the sliding cylinder (26) extends into the limiting sleeve (4) and is fixedly connected to the outer side wall of the rotating rod (24). The sliding rod (27) is slidably connected within the sliding cylinder (26). One end of the sliding rod (27) extends out of the sliding cylinder (26) and is fixedly connected to the hatch door (1), and the sliding rod (27) does not protrude from the sliding cylinder (26).

2. The aircraft door lifting device according to claim 1, characterized in that, The connecting member (2) is arranged in a U shape with the opening facing the hatch door (1), and the power mechanism, the swing mechanism, and the limiting mechanism are all located inside the connecting member (2).

3. The aircraft door lifting device according to claim 1, characterized in that, One end of the push rod (15) away from the connecting block (19) is rotatably connected with a roller (16), and the roller (16) is in rolling contact with the hatch door (1).

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