Aircraft seat structure

Abstract

The utility model discloses an airplane seat structure which comprises a seat supporting frame, a seat is fixedly connected to the seat supporting frame, a leg support is movably connected to the front end of the seat, a seat back is arranged at the rear end of the seat, the airplane seat structure further comprises a limiting device, the limiting device is fixedly installed on a guide rail, and the limiting device is fixedly connected with the leg support. The limiting device is fixedly connected with an adjusting device, the adjusting device comprises a fixed supporting frame fixedly connected with the limiting device, the fixed supporting frame is movably connected with the chair face supporting frame and connected with an electric push rod, the top end of the electric push rod is connected with the chair face, the fixed supporting frame is further connected with an adjusting arm, and the adjusting arm is movably connected with the limiting device. The adjusting arm is connected with the top end of the electric push rod, the adjusting arm is connected with the seat surface and the leg support, and the adjusting device is used for adjusting the inclination angle of the seat. According to the aircraft seat structure, synchronous adjustment of the seat and the leg support can be achieved, operation is easy, convenient and efficient, the structure is simple, and installation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft design, in particular to an aircraft seat structure. 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 the most optimized riding experience in 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 feel 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 operation by users is cumbersome. Summary of the Utility Model

[0003] In view of the technical problem of cumbersome operation in the angle adjustment of the backrest and the adjustment of the leg rest of the current aircraft seats, the utility model provides an aircraft seat structure, which can realize the synchronous adjustment of the seat and the leg rest, with simple and efficient operation, simple structure and convenient installation.

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

[0005] An aircraft seat structure includes a seat surface support frame, a seat surface is fixedly connected to the seat surface support frame, a leg rest is movably connected to the front end of the seat surface, a backrest is arranged at the rear end of the seat surface, and further includes a limiting device. The limiting device is fixedly installed on a guide rail, the limiting device is fixedly connected to an adjusting device. The adjusting device includes a fixed support frame fixedly connected to the limiting device. The fixed support frame is movably connected to the seat surface support frame. The fixed support frame is connected to an electric push rod. The top end of the electric push rod is connected to the seat surface. The fixed support frame is further connected to an adjusting arm. The adjusting arm is connected to the top end of the electric push rod. The adjusting arm is connected to the seat surface and the leg rest. The adjusting device is used to adjust the inclination angle of the seat.

[0006] According to one aspect of the utility model, the adjusting arm includes a support plate connecting arm. One end of the support plate connecting arm is connected to the leg rest, and the other end is connected to a second connecting arm. The other end of the second connecting arm is connected to 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 to the top of the electric push rod, and the other end is connected to a fifth connecting arm. The other end of the fifth connecting arm is connected to the fixed support frame.

[0007] According to one aspect of the present utility model, the seat surface includes a seat surface skeleton fixedly installed on a seat surface support frame. An adjusting device connecting member is provided on the seat surface skeleton. The adjusting device connecting member is provided with a first connection end and a second connection end. The first connection end is connected to the third connection arm, and the second connection end is connected to the fourth connection arm and the electric push rod.

[0008] According to one aspect of the present utility model, the leg rest includes a support plate mounting frame movably connected to the seat surface. A support plate is fixedly installed on the support plate mounting frame. A support plate connecting member is further provided on the support plate, and the support plate connecting member is connected to the support plate connecting arm.

[0009] According to one aspect of the present utility model, it further includes a headrest. The headrest includes a headrest mounting frame fixedly installed on the backrest. A headrest adjusting and fixing device is fixedly provided on the headrest mounting frame. A headrest adjusting rod is arranged inside the headrest mounting frame. A pillow pad is fixedly installed on the headrest adjusting rod. The headrest adjusting and fixing device is used to limit the position of the headrest.

[0010] According to one aspect of the present utility model, the headrest adjusting and fixing device includes a fixing plate fixedly connected to the headrest mounting frame. An elastic member is fixedly connected to the fixing plate, and the elastic member is connected to an adjusting ball.

[0011] Locking grooves are provided on the headrest adjusting rod. When the adjusting ball is stuck in the locking grooves, the position of the headrest can be limited.

[0012] According to one aspect of the present utility model, it further includes a safety device. The safety device includes a safety belt movably connected to the backrest and a safety belt retractor connected to the safety belt. The safety belt retractor is arranged on the seat surface.

[0013] According to one aspect of the present utility model, the backrest includes a backrest support frame fixedly connected to the seat surface. A backrest skeleton is fixedly connected to the backrest support frame.

[0014] A safety belt positioner is provided on the backrest skeleton. The safety belt positioner is used to limit the position of the safety belt.

[0015] Advantages of the implementation of the present utility model: By fixedly connecting the backrest and the seat surface, and connecting both the seat surface and the leg rest to the adjusting device, the adjusting device can synchronously adjust the seat angle and the position of the leg rest, with simple and efficient operation; By setting the headrest as an adjustable headrest, the user can adjust it to a suitable position according to personal needs; Through the setting of the headrest adjustment fixator, the position of the headrest can be limited to prevent unnecessary changes in the headrest position caused by aircraft vibration; The configuration of the safety device ensures the safety of the user during the ride; By using an electric push rod for the adjusting device, compared with traditional manual adjustment, it is more labor-saving and convenient for the user to adjust the sitting posture. A structure of an aircraft seat provided by the present utility model can achieve synchronous adjustment of the seat and the leg rest, with simple and efficient operation and a concise structure, facilitating installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 for use 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, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Structural schematic diagram of a structure of an aircraft seat described in the present utility model;

[0018] Figure 2 Structural schematic diagram of a structure of an aircraft seat described in the present utility model;

[0019] Figure 3 Cross-sectional schematic diagram of a structure of an aircraft seat described in the present utility model;

[0020] Figure 4 Structural schematic diagram of a structure of an aircraft seat described in the present utility model;

[0021] Reference numerals in the figures:

[0022] 1. Leg rest; 11. Tray; 12. Tray mounting bracket; 13. Tray connecting piece; 2. Seat surface; 21. Seat surface frame; 22. Adjusting device connecting piece; 221. First connection end; 222. Second connection end; 3. Seat surface support frame; 31. Limit convex part; 4. Backrest; 41. Backrest frame; 411. Seat belt locator; 42. Backrest support frame; 5. Headrest; 51. Pillow; 52. Headrest mounting bracket; 53. Headrest adjusting and fixing device; 531. Fixing plate; 532. Elastic member; 533. Adjusting ball; 54. Headrest adjusting rod; 541. Locking groove; 6. Adjusting device; 61. Fixed support frame; 62. Electric push rod; 63. Connecting shaft; 64. Adjusting arm; 641. Tray connecting arm; 642. Second connecting arm; 643. Third connecting arm; 644. Fourth connecting arm; 645. Fifth connecting arm; 7. Limiting device; 71. Limiting groove; 8. Guide rail; 9. Safety device; 91. Seat belt; 92. Seat belt retractor. Detailed implementation manners

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, the orientation or positional relationship indicated by the terms "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. It is only for the convenience of describing the present invention 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 therefore should not be construed as a limitation to the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] Such as Figure 1 、 Figure 2 、 Figure 3 And Figure 4As shown, an aircraft seat structure is mainly used to be installed in the cabin of an aircraft. A sponge pad, a foam layer, a fabric, leather, etc. can be laid on the outside of the aircraft seat structure as required to provide a more comfortable experience for users. The aircraft seat structure includes a seat surface support frame 3. The upper end of the seat surface support frame 3 is fixedly connected to the seat surface 2. The front end of the seat surface 2 is movably connected to a leg rest 1. The rear end of the seat surface 2 is provided with a backrest 4. The aircraft seat structure further includes a guide rail 8. The guide rail 8 is fixedly installed on the floor in the aircraft cabin. The guide rail 8 is generally composed of a group of 2 parallel guide rails. A limiting device 7 is fixedly installed on the guide rail 8. The limiting device 7 is fixedly installed on a group of guide rails 8. Therefore, the shape of the limiting device 7 can be in the shape of "I", "C", etc., which is convenient for being respectively installed on the two guide rails 8. An adjusting device 6 is fixedly arranged on the limiting device 7. The adjusting device 6 includes a fixed support frame 61 fixedly connected to the limiting device 7. The front end of the fixed support frame 61 is fixedly connected to the limiting device 7. The upper end of the fixed support frame 61 is movably connected to the seat surface support frame 3. A connecting shaft 63 is arranged at the rear end of the fixed support frame 61. The seat surface support frame 3 is connected to the fixed support frame 61 through the connecting shaft 63 and can rotate relative to the fixed support frame 61 around the connecting shaft 63. A limiting groove 71 is arranged on the limiting device 7. A limiting convex part 31 is arranged at the bottom of the front end of the seat surface support frame 3. The limiting convex part 31 can be embedded in the limiting groove 71. Generally, 2 seat surface support frames 3 are arranged, both of which are arranged at the upper end of the fixed support frame 61. An electric push rod 62 is arranged on the fixed support frame 61. The bottom of the electric push rod 62 is connected to the fixed support frame 61 through a shaft. The top of the electric push rod 62 is connected to the seat surface 2. Preferably, the electric push rod 62 is arranged at the middle position between the two parallel guide rails 8 and at a position close to the front of the seat surface, so that when the electric push rod 62 provides an upward acting force, the seat surface 2 is more evenly stressed and more labor-saving. The fixed support frame 61 is further connected to an adjusting arm 64. The adjusting arm 64 is connected to the top end of the electric push rod 62. The adjusting arm 64 is simultaneously connected to the seat surface 2 and the leg rest 1. The adjusting device 6 is used to adjust the tilt angle of the seat. When the user activates the electric push rod 62, the electric push rod 62 provides an upward thrust, causing the seat to rotate upward around the connecting shaft 63, and then making the seat surface form a certain tilt angle relative to the ground to adjust the sitting posture of the user.

[0026] In practical applications, the adjusting arm 64 includes a tray connecting arm 641. One end of the tray connecting arm 641 is connected to the leg rest 1, and the other end is connected to a second connecting arm 642. The other end of the second connecting arm 642 is connected to a third connecting arm 643. The middle part of the second connecting arm 642 is connected to the seat surface 2. The other end of the third connecting arm 643 is connected to a fourth connecting arm 644. One end of the fourth connecting arm 644 is connected to the top of the electric push rod 62, and the other end is connected to a fifth connecting arm 645. The fifth connecting arm 645 connects the fixed support frame 61 and the electric push rod 62 through a shaft. Preferably, the second connecting arm 642 and the third connecting arm 643 can be designed in a folded shape.

[0027] In practical applications, the seat surface 2 includes a seat surface frame 21 fixedly installed on two seat surface support frames 3. Multiple frames can be provided on the seat surface frame 21. The bottom end of the seat surface frame 21 is provided with an adjusting device connecting member 22, which is fixedly connected to multiple seat surface frames 21. The adjusting device connecting member 22 is provided with a first connection end 221 and a second connection end 222. The first connection end 221 is connected to the second connecting arm 642, and the second connection end 222 is connected to the upper ends of the fourth connecting arm 644 and the electric push rod 62.

[0028] In practical applications, the leg rest 1 includes a tray mounting frame 12 movably connected to the seat surface 2. A tray 11 is fixedly installed on the tray mounting frame 12. A tray connecting member 13 is provided on the tray 11. The tray connecting member 13 is connected to the tray connecting arm 641. When the electric push rod 62 applies an upward thrust, it will drive the corresponding movement of the fourth connecting arm 644 connected to it, and then drive the entire adjusting arm 64 to perform corresponding movements, driving the leg rest 1 to rotate relative to the seat surface 2. Therefore, the adjusting device 6 can not only adjust the tilt angle of the seat, but also adjust the position of the leg rest 1.

[0029] In practical applications, the backrest 4 includes a backrest support frame 42 fixedly connected to the seat surface 2. Multiple backrest frames 41 are fixedly connected to the backrest support frame 42. A seat belt locator 411 is provided on the backrest frame 41. The aircraft seat structure further includes a safety device 9. The safety device 9 includes a seat belt 91 movably connected to the backrest 4. The seat belt 91 is connected to a seat belt retractor 92. The seat belt retractor 92 is provided on the seat surface 2 (not shown in the figure). The seat belt retractor 92 can be fixed to the seat surface 2 by bolts, screws, welding, etc. The seat belt 91 can be inserted into the seat belt locator 411 to limit the left and right movement of the seat belt 91 on the backrest 4 and guide the transmission direction of the seat belt.

[0030] In practical applications, a headrest 5 is provided on the backrest 4. The headrest 5 includes a headrest mounting bracket 52 fixedly installed on the backrest 4. Specifically, the headrest mounting bracket 52 is installed on the backrest frame 41. A headrest adjustment fixator 53 is fixedly provided on the headrest mounting bracket 52. Preferably, one headrest adjustment fixator 53 is provided on each of the left and right sides of the headrest mounting bracket 52. A headrest adjustment rod 54 is arranged inside the headrest mounting bracket 52. A headrest cushion 51 is fixedly installed on the headrest adjustment rod 54. A plurality of locking grooves 541 are arranged on the headrest adjustment rod 54. The headrest adjustment fixator 53 includes a fixing plate 531 fixedly installed on the headrest mounting bracket 52. The fixing plate 531 is fixedly connected with an elastic member 532. The elastic member 532 can be a spring, a compression spring, etc. The elastic member 532 is fixedly connected with an adjustment ball 533. The adjustment ball 533 can be embedded into the locking groove 541 to limit the position of the headrest 5 and ensure that the headrest 5 will not move arbitrarily during the vibration of the aircraft. When the user needs to adjust the headrest 5 according to his own height, a downward pressure or an upward pulling force can be applied to the headrest 5 to deform the elastic member 532, so that the adjustment ball 533 disengages from the locking groove 541. At this time, the adjustment rod can slide freely inside the headrest mounting bracket 52. After adjusting to a suitable position, the adjustment ball 533 is made to snap into the nearest locking groove 541 to limit the position of the headrest 5. Until adjusted to a suitable position, then the adjustment ball 533 can be re-embedded into the adjacent locking groove 541 to fix the position of the headrest 5.

[0031] Advantages of the implementation of the present utility model: By fixedly connecting the backrest and the seat surface, and connecting both the seat surface and the leg rest to the adjustment device, the adjustment device can synchronously adjust the seat angle and the position of the leg rest, with simple and efficient operation; By setting the headrest as an adjustable headrest, the user can adjust it to a suitable position according to personal needs; Through the setting of the headrest adjustment fixator, the position of the headrest can be limited to prevent unnecessary changes in the position of the headrest caused by the vibration of the aircraft; The configuration of the safety device ensures the safety of the user during the ride; By using an electric push rod for the adjustment device, compared with the traditional manual adjustment, it is more labor-saving and convenient for the user to adjust the sitting posture. A structure of an aircraft seat provided by the present utility model can realize the synchronous adjustment of the seat and the leg rest, with simple and efficient operation, and a simple structure, which is convenient for installation.

[0032] 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 claims.

Claims

1. An aircraft seat structure, comprising a seat surface support frame (3), a seat surface (2) is fixedly connected to the seat surface support frame (3), a leg rest (1) is movably connected to the front end of the seat surface (2), and a backrest (4) is arranged at the rear end of the seat surface (2), characterized in that, It further includes a limiting device (7), which is fixedly installed on the guide rail (8). The limiting device (7) is fixedly connected to an adjusting device (6). The adjusting device (6) includes a fixed support frame (61) fixedly connected to the limiting device (7). The fixed support frame (61) is movably connected to the seat surface support frame (3). The fixed support frame (61) is connected to an electric push rod (62). The top of the electric push rod (62) is connected to the seat surface (2). The fixed support frame (61) is also connected to an adjusting arm (64). The adjusting arm (64) is connected to the top of the electric push rod (62). The adjusting arm (64) connects the seat surface (2) and the leg rest (1). The adjusting device (6) is used to adjust the inclination angle of the seat.

2. The aircraft seat structure according to claim 1, wherein, The adjusting arm (64) includes a support plate connecting arm (641). One end of the support plate connecting arm (641) is connected to the leg rest (1), and the other end is connected to a second connecting arm (642). The other end of the second connecting arm (642) is connected to a third connecting arm (643). The other end of the third connecting arm (643) is connected to a fourth connecting arm (644). One end of the fourth connecting arm (644) is connected to the top of the electric push rod (62), and the other end is connected to a fifth connecting arm (645). The other end of the fifth connecting arm (645) is connected to the fixed support frame (61).

3. The aircraft seat structure according to claim 2, characterized in that, The seat surface (2) includes a seat surface skeleton (21) fixedly installed on the seat surface support frame (3). An adjusting device connecting member (22) is provided on the seat surface skeleton (21). The adjusting device connecting member (22) is provided with a first connection end (221) and a second connection end (222). The first connection end (221) is connected to the second connecting arm (642), and the second connection end (222) connects the fourth connecting arm (644) and the electric push rod (62).

4. The aircraft seat structure according to claim 2, wherein The leg rest (1) includes a support plate mounting frame (12) movably connected to the seat surface (2). A support plate (11) is fixedly installed on the support plate mounting frame (12). A support plate connecting member (13) is also provided on the support plate (11). The support plate connecting member (13) is connected to the support plate connecting arm (641).

5. The aircraft seat structure according to claim 1, characterized in that, It further includes a headrest (5). The headrest (5) includes a headrest mounting frame (52) fixedly installed on the backrest (4). A headrest adjusting fixator (53) is fixedly provided on the headrest mounting frame (52). A headrest adjusting rod (54) is arranged inside the headrest mounting frame (52). A pillow pad (51) is fixedly installed on the headrest adjusting rod (54). The headrest adjusting fixator (53) is used to limit the position of the headrest.

6. The aircraft seat structure according to claim 5, characterized in that, The headrest adjusting fixator (53) includes a fixing plate (531) fixedly connected to the headrest mounting frame (52). An elastic member (532) is fixedly connected to the fixing plate (531). The elastic member (532) is connected to an adjusting ball (533).

7. The aircraft seat structure according to claim 6, characterized in that, A locking groove (541) is provided on the headrest adjusting rod (54). When the adjusting ball (533) is snapped into the locking groove (541), the position of the headrest can be defined.

8. The aircraft seat structure according to claim 1, characterized in that, It further includes a safety device (9). The safety device (9) includes a seat belt (91) movably connected to the backrest (4) and a seat belt retractor (92) connected to the seat belt (91). The seat belt retractor (92) is arranged on the seat surface (2).

9. The aircraft seat structure according to claim 8, characterized in that, The backrest (4) includes a backrest support frame (42) fixedly connected to the seat surface (2), and a backrest skeleton (41) is fixedly connected to the backrest support frame (42).

10. The aircraft seat structure according to claim 9, characterized in that, A seat belt locator (411) is provided on the backrest skeleton (41). The seat belt locator (411) is used to define the position of the seat belt.

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