Adjusting device for aircraft seat

Abstract

The utility model discloses an adjusting device for an aircraft seat, the adjusting device is arranged at the bottom of the seat, the front end of the seat is movably connected with a leg support, the adjusting device further comprises a fixed support frame, the fixed support frame is movably connected with the bottom of the rear end of the seat, a lifting device is arranged on the fixed support frame, and the lifting device is connected with the leg support. The top end of the lifting device is connected with the bottom end of the seat face of the seat, the fixed supporting frame is further connected with an adjusting arm, the adjusting arm is connected with the top end of the lifting device, and the adjusting arm is further connected with the seat and the leg support. According to the adjusting device for the aircraft seat, synchronous adjustment of the seat and the leg support can be achieved, operation is easy, convenient and efficient, and meanwhile the adjusting device is simple in structure and convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft design, and particularly relates to an adjusting device for an aircraft seat. Background Art

[0002] With the continuous development of aviation technology and the increasing demand of passengers for comfort, the design of modern aircraft seats pays more and more attention to the application of ergonomic principles. Designers are committed to providing passengers with an optimized riding experience within the limited cabin space. Under the current technical conditions, the design of aircraft seats is mainly divided into two types. One is a fixed seat. Although this kind of seat has a simple structure and is easy to install, passengers are prone to discomfort in the waist and back during long-term sitting. At the same time, it is not convenient for passengers to rest. The other is an adjustable seat. Although this kind of seat can be adjusted according to the sitting and lying needs of passengers to provide better comfort, its structure is relatively complex, the installation process is cumbersome, and the cost is relatively high. At the same time, for the existing adjustable seats, the angle adjustment of the backrest and the adjustment of the leg rest are separate, and the user operation is cumbersome. Content of the Utility Model

[0003] In view of the current technical problem of the complicated operation of adjusting aircraft seats, the utility model provides an adjusting device for an aircraft seat, which can realize the synchronous adjustment of the seat and the leg rest, and the operation is simple and efficient.

[0004] To achieve the above object, the embodiments of the utility model adopt the following technical solutions:

[0005] An adjusting device for an aircraft seat, the adjusting device is arranged at the bottom of the seat, the front end of the seat 1 is movably connected with a leg rest, and further includes a fixed support frame, the fixed support frame is movably connected with the bottom of the rear end of the seat, a lifting device is arranged on the fixed support frame, the top end of the lifting device is connected with the bottom end of the seat surface of the seat, the fixed support frame is further connected with an adjusting arm, the adjusting arm is connected with the top end of the lifting device, and the adjusting arm is further connected with the seat and the leg rest.

[0006] According to one aspect of the utility model, the adjusting arm includes a leg rest connecting arm, one end of the leg rest connecting arm is connected with the leg rest, the other end is connected with a second connecting arm, the bottom end of the seat surface of the seat is connected with the second connecting arm, the other end of the second connecting arm is connected with a third connecting arm, the other end of the third connecting arm is connected to a fourth connecting arm, one end of the fourth connecting arm is connected with the top of the lifting device, the other end is connected with a fifth connecting arm, and the other end of the fifth connecting arm is connected with the fixed support frame.

[0007] According to one aspect of the present utility model, the seat includes a first connection end and a second connection end provided at the bottom of the seat surface of the seat. The first connection end is connected to the second connecting arm, and the top of the lifting device and the fourth connecting arm are both connected to the second connection end.

[0008] According to one aspect of the present utility model, the bottom of the rear end of the seat is movably connected to the fixed support frame through a first connection shaft, and the seat can rotate around the first connection shaft.

[0009] According to one aspect of the present utility model, the fixed support frame includes a connecting cross bar. First fixing blocks and second fixing blocks are provided on both sides of the connecting cross bar. The first fixing block and the second fixing block are both movably connected to the seat through a first connection shaft.

[0010] According to one aspect of the present utility model, a push rod connection seat is provided on the connecting cross bar. The bottom of the lifting device and the fifth connecting arm are connected to the push rod connection seat through a second connection shaft.

[0011] According to one aspect of the present utility model, the lifting device, the fourth connecting arm and the second connection end are connected through a push rod connection shaft.

[0012] According to one aspect of the present utility model, the second connecting arm and / or the third connecting arm are designed in a "V" shape.

[0013] According to one aspect of the present utility model, the lifting device is an electric push rod or a hydraulic cylinder. Advantages of the implementation of the present utility model: By adjusting the top end of the lifting device to be connected to the seat surface and the adjusting arm of the seat at the same time, and the adjusting arm is connected to the bottom end of the seat surface, the bottom end of the lifting device and the leg rest respectively, so as to realize the synchronous adjustment of the seat and the leg rest. The adjustment operation is simple and efficient. The structure of the adjustment device is simple, which is convenient for installation and maintenance; The present utility model provides an adjustment device for an aircraft seat, which can realize the synchronous adjustment of the seat and the leg rest, the operation is simple and efficient, and at the same time, its structure is simple, which is convenient for installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic three-dimensional structure diagram of an adjustment device for an aircraft seat according to the present utility model;

[0016] Figure 2Structural schematic diagram of an adjusting device for an aircraft seat according to the present utility model;

[0017] Figure 3 Cross-sectional schematic diagram of an adjusting device for an aircraft seat according to the present utility model;

[0018] Reference numerals in the figure:

[0019] 1. Seat; 11. First connection end; 12. Second connection end; 2. Leg rest; 3. Fixed support frame; 31. First fixed block; 32. Second fixed block; 33. Connecting cross bar; 331. Push rod connection seat; 4. Adjusting arm; 41. Leg rest connecting arm; 42. Second connecting arm; 43. Third connecting arm; 44. Fourth connecting arm; 45. Fifth connecting arm; 5. Lifting device; 6. First connecting shaft; 7. Push rod connecting shaft; 8. Second connecting shaft. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] In the description of the present utility model, unless otherwise specified, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] Such as Figure 1 、 Figure 2 and Figure 3As shown in the figure, an adjusting device for an aircraft seat. The seat 1 generally includes a seat surface and a backrest. A leg rest 2 is movably connected to the front end of the seat surface of the seat 1. Generally, guide rails are provided on the ground of the aircraft, and a group consists of two guide rails. A limiting device for the seat 1 is generally provided on the guide rails. The limiting device is fixedly connected to a fixed support frame 3. The seat 1 is arranged on the fixed support frame 3. The fixed support frame 3 is movably connected to the bottom of the rear end of the seat 1. Specifically, the fixed support frame 3 is movably connected to the bottom of the seat 1 through a first connecting shaft 6. The seat 1 can rotate relative to the fixed support frame 3 around the first connecting shaft 6. The fixed support frame 3 includes a connecting cross bar 33. First fixing blocks 31 and second fixing blocks 32 are arranged on both sides of the connecting cross bar 33. The first fixing block 31 and the second fixing block 32 are both fixed on the limiting device and are respectively arranged above the two guide rails. The first fixing block 31 and the second fixing block 32 are respectively movably connected to the bottom of the rear end of the seat 1 through the first connecting shaft 6. A push rod connecting seat 331 is arranged in the middle of the connecting cross bar 33. The push rod connecting seat 331 is connected to a lifting device 5. The lifting device 5 can be an electric push rod, a hydraulic cylinder, etc. The lifting device 5 is used to provide the power for the seat 1 to rotate around the first connecting shaft 6. The top end of the lifting device 5 is connected to the bottom end of the seat surface of the seat 1. An adjusting arm 4 is also connected to the push rod connecting seat 331. The adjusting arm 4 is connected to the top end of the lifting device 5. The adjusting arm 4 is also connected to the bottom end of the seat surface of the seat 1 and the leg rest 2. A first connection end 11 and a second connection end 12 are arranged at the bottom end of the seat surface of the seat 1.

[0023] In practical applications, the adjusting arm 4 includes a leg rest connecting arm 41. One end of the leg rest connecting arm 41 is connected to the leg rest 2, and the other end is connected to a second connecting arm 42. The seat 1 is connected to the second connecting arm 42. The middle of the second connecting arm 42 is connected to the first connection end 11. The other end of the second connecting arm 42 is connected to a third connecting arm 43. The other end of the third connecting arm 43 is connected to a fourth connecting arm 44. One end of the fourth connecting arm 44 is connected to the top of the lifting device 5, and the other end is connected to a fifth connecting arm 45. The other end of the fifth connecting arm 45 is connected to the fixed support frame 3. The bottom of the lifting device 5 and the fifth connecting arm 45 are connected to the push rod connecting seat 331 through a second connecting shaft 8. The top of the lifting device 5 and the fourth connecting arm 44 are both connected to the second connection end 12 through a push rod connecting shaft 7. Preferably, the second connecting arm 42 and / or the third connecting arm 43 are designed as a "V" shape.

[0024] In practical applications, the structural design of the adjustment device is relatively simple, with fewer components, thus effectively reducing costs. In terms of material selection, it usually uses lightweight and high-strength materials such as aluminum alloy, titanium matrix composite, steel, and composite materials. The application of these materials helps to reduce the overall weight of the aircraft.

[0025] Working principle: The lifting mechanism provides power in the vertical direction, enabling the seat to rotate around the first connecting shaft to adjust the user's sitting posture. The lifting mechanism is connected to the adjustment arm, and the adjustment arm is connected to the leg rest. When the lifting mechanism is activated, it drives the adjustment arm to move, thereby causing the leg rest to rotate relative to the seat. The angle of the leg rest changes with the change in the position of the top of the lifting mechanism, that is, the adjustment device can achieve synchronous adjustment of the seat and the leg rest. Therefore, as the angle of the seat changes, the angle of the leg rest will be adjusted accordingly to ensure that the angle of the leg rest is always in the most comfortable position for the human sitting posture.

[0026] Advantages of the implementation of the present utility model: By adjusting the top of the lifting device to be connected to both the seat surface and the adjustment arm at the same time, and the adjustment arm is connected to the bottom end of the seat surface, the bottom end of the lifting device, and the leg rest, synchronous adjustment of the seat and the leg rest is achieved. The adjustment operation is simple and efficient. The structure of the adjustment device is simple, facilitating installation and maintenance. The present utility model provides an adjustment device for an aircraft seat, which can achieve synchronous adjustment of the seat and the leg rest, with simple and efficient operation. At the same time, its structure is simple, facilitating installation and maintenance.

[0027] As described above, the above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. An adjustment device for an aircraft seat, the adjustment device being provided at the bottom of the seat (1), and the front end of the seat (1) being movably connected with a leg rest (2), characterized in that, It further includes a fixed support frame (3), the fixed support frame (3) is movably connected to the bottom of the rear end of the seat (1), a lifting device (5) is arranged on the fixed support frame (3), the top end of the lifting device (5) is connected to the bottom end of the seat surface of the seat (1), the fixed support frame (3) is further connected with an adjusting arm (4), the adjusting arm (4) is connected to the top end of the lifting device (5), and the adjusting arm (4) is also connected to the seat (1) and the leg rest (2).

2. The adjusting device for an aircraft seat according to claim 1, characterized in that, The adjusting arm (4) includes a leg rest connecting arm (41), one end of the leg rest connecting arm (41) is connected to the leg rest (2), the other end is connected to a second connecting arm (42), the bottom end of the seat surface of the seat (1) is connected to the second connecting arm (42), the other end of the second connecting arm (42) is connected to a third connecting arm (43), the other end of the third connecting arm (43) is connected to a fourth connecting arm (44), one end of the fourth connecting arm (44) is connected to the top of the lifting device (5), the other end is connected to a fifth connecting arm (45), and the other end of the fifth connecting arm (45) is connected to the fixed support frame (3).

3. The adjusting device for an aircraft seat according to claim 2, characterized in that, The seat (1) includes a first connection end (11) and a second connection end (12) arranged at the bottom of the seat surface of the seat (1), the first connection end (11) is connected to the second connecting arm (42), and the top of the lifting device (5) and the fourth connecting arm (44) are both connected to the second connection end (12).

4. The adjusting device for an aircraft seat according to claim 3, characterized in that, The bottom of the rear end of the seat (1) is movably connected to the fixed support frame (3) through a first connecting shaft (6), and the seat (1) can rotate around the first connecting shaft (6).

5. The adjusting device for an aircraft seat according to claim 4, characterized in that, The fixed support frame (3) includes a connecting cross bar (33), a first fixed block (31) and a second fixed block (32) are arranged on both sides of the connecting cross bar (33), and the first fixed block (31) and the second fixed block (32) are both movably connected to the seat (1) through the first connecting shaft (6).

6. The adjusting device for an aircraft seat according to claim 5, characterized in that, A push rod connecting seat (331) is arranged on the connecting cross bar (33), and the bottom of the lifting device (5) and the fifth connecting arm (45) are connected to the push rod connecting seat (331) through a second connecting shaft (8).

7. The adjusting device for an aircraft seat according to claim 3, characterized in that, The lifting device (5), the fourth connecting arm (44) and the second connection end (12) are connected through a push rod connecting shaft (7).

8. The adjusting device for an aircraft seat according to claim 2, characterized in that, The second connecting arm (42) and / or the third connecting arm (43) is designed as a "V" shape.

9. The adjusting device for an aircraft seat according to claim 1, characterized in that, The lifting device (5) is an electric push rod or a hydraulic cylinder.

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