Observer seat capable of being folded and unfolded laterally

Abstract

The invention discloses a laterally retractable observer seat which comprises a framework unit, a seat basin unit, a lap joint unit and a linkage unit, and one side of the framework unit is rotatably connected with a first side wall plate; one side of the chair basin unit is rotationally connected with the bottom of the framework unit; the lap joint unit comprises a lap joint seat and a lap joint shaft, the lap joint seat is fixedly connected with the second side wall plate and provided with a lap joint hole, and the lap joint shaft is connected with the framework unit in a sliding mode. The seat has the beneficial effects that when the seat is in a working state, the other side of the seat can be in lap joint with the second side wall plate, the other side of the seat can be effectively supported, and the strength requirement can be shared through the two side wall plates, so that the structural weight of the wall plates and the seat is reduced, the operation economy is improved, and the service life of the seat and the wall plates is prolonged; the movement of the lap joint shaft and the folding action of the chair basin unit can be linked, manual operation is not needed, and the man-machine work efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of aviation seats, and in particular to a laterally retractable observer seat. Background Art

[0002] The observer seat is an important onboard equipment of civil aircraft. It is installed in the cockpit of the aircraft for observers to sit on and ensure their normal work and emergency protection. The observer seat is usually installed on the equipment wall panel behind the main pilot's seat or on the cockpit floor. Due to different cockpit layouts, there are many installation forms and usage methods for observer seats to meet the needs of special installation environments.

[0003] The existing observer seat (such as a laterally retractable observer seat and its use method disclosed in application number 201910490293.9) is arranged behind the main driver's seat and in front of the cabin door. One side of the seat back is hinged to the first side wall panel. When the seat is not in use, the seat fits the wall panel as a whole. The aisle between the cabin door and the main driver's seat is unobstructed for passengers to enter and exit. When the seat is in use, the seat rotates as a whole to a position perpendicular to the wall panel. When the seat of this structure is in working state, the other side of the seat cannot overlap with the second side wall panel. The other side of the seat is always in a suspended state and cannot be effectively supported. All the weight of the seat and the observer acts on the first side wall panel, which can easily cause damage to the seat and the first side wall panel and reduce the service life of the seat. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and to propose a laterally retractable observer seat to solve the technical problem in the prior art that when the seat is in working condition, the other side of the seat cannot overlap with the second side wall panel, the other side of the seat is always in a suspended state, and all the weight of the seat and the observer acts on the first side wall panel.

[0005] In order to achieve the above technical objectives, the technical solution of the present invention provides a side-retractable observer seat, comprising: a frame unit, one side of which is rotatably connected to a first side wall panel in the cabin; A seat basin unit, one side of which is rotatably connected to the bottom of the frame unit; A lap joint unit, comprising a lap joint seat and a lap joint shaft, wherein the lap joint seat is fixedly connected to the second side wall plate and has a lap joint hole, and the lap joint shaft is slidably connected to the frame unit, and when the frame unit is perpendicular to the first side wall plate, the lap joint shaft faces the lap joint hole; A linkage unit connects the seat basin unit and the lap shaft. The lap shaft can be linked with the seat basin unit via the linkage unit. When the seat basin unit rotates away from the frame unit, the lap shaft moves toward the lap hole. When the seat basin unit rotates close to the frame unit, the lap shaft moves out of the lap hole.

[0006] Furthermore, the laterally retractable observer seat also includes a locking unit, which is connected to the frame unit so that the frame unit has a fastened state with the first side wall panel and an adjustable state in which it can rotate relative to the first side wall panel to adjust the angle between the frame unit and the first side wall panel.

[0007] Furthermore, the skeleton unit includes a first mounting seat, at least one second mounting seat and a skeleton. The first mounting seat and each of the second mounting seats are spaced apart from top to bottom and are fixedly connected to the first side wall plate. The skeleton is vertically arranged, and one side of the skeleton is rotatably connected to the first mounting seat and each of the second mounting seats via a pin shaft. One side of the seat basin unit is rotatably connected to the bottom of the skeleton, and the lap shaft is slidably connected to the skeleton.

[0008] Furthermore, the seat basin unit includes a mounting shaft, a seat basin and an elastic component, the mounting shaft is horizontally arranged in the frame, and both ends of the mounting shaft are fixedly connected to the frame, one side of the seat basin is rotatably connected to the mounting shaft, and both ends of the elastic component are respectively connected to the mounting shaft and one side of the seat basin, so that the other side of the seat basin rotates upward and approaches the frame.

[0009] Furthermore, the overlapping seat includes an outer frame, at least one first guide rod, an inner frame, at least one second guide rod, an inner seat, a first adjusting member and a second adjusting member, the outer frame is detachably fixedly connected to the other first side wall plate via bolts, each of the first guide rods is horizontally arranged in the outer frame, and both ends of each of the first guide rods are fixedly connected to the outer frame, the inner frame is arranged in the outer frame and slidably sleeved on each of the first guide rods, each of the second guide rods is vertically arranged in the inner frame, and both ends of each of the second guide rods are fixedly connected to the inner frame, the inner seat is arranged in the inner frame and slidably sleeved on each of the second guide rods, the inner seat is provided with the overlapping hole, the first adjusting member is connected to the inner frame for driving the inner frame to move in the horizontal direction to adjust the position of the inner frame in the horizontal direction, and the second adjusting member is connected to the inner seat for driving the inner seat to move in the vertical direction to adjust the position of the inner seat in the vertical direction.

[0010] Furthermore, the linkage unit includes an adapter plate, a joint bearing and a connecting rod, the adapter plate is a V-shaped structure, one plate surface of the adapter plate is fixedly connected to one side of the seat basin, an angle a is formed between the other plate surface of the adapter plate and the one side of the seat basin, and the angle a is an acute angle. The joint bearing is arranged within the angle a and fixedly connected to the other plate surface of the adapter plate, one end of the connecting rod is ball-jointed to the joint bearing, and the other end of the connecting rod is hinged to one end of the lap shaft.

[0011] Furthermore, a first clamping hole and a second clamping hole are provided on the first mounting seat, and the locking unit includes a locking pin and a driving assembly. The locking pin is slidably connected to the frame unit, and the driving assembly is connected to one end of the locking pin so that the other end of the locking pin moves into the first clamping hole or the second clamping hole. When the other end of the locking pin moves into the first clamping hole, the frame is parallel to the wall panel, and when the other end of the locking pin moves into the second clamping hole, the frame is perpendicular to the wall panel.

[0012] Furthermore, the driving assembly includes a rotating shaft, a connecting rod, a steel cable, a handle and an elastic member. The rotating shaft is horizontally arranged and rotates to pass through the other side wall of the frame. The connecting rod is arranged in the frame, one end of the connecting rod is fixedly connected to one end of the rotating shaft, one end of the steel cable is connected to the other end of the connecting rod, and the other end of the steel cable is connected to one end of the locking pin. The handle is arranged outside the frame, one end of the handle is fixedly connected to the other end of the rotating shaft, and the elastic member is arranged in the frame, and both ends of the elastic member are respectively connected to the frame and the other end of the connecting rod, so that the other end of the connecting rod is located in the first position. When the other end of the connecting rod is located in the first position, the other end of the locking pin moves into the first clamping hole or the second clamping hole.

[0013] Furthermore, the laterally retractable observer seat also includes a back panel unit and a transmission unit, wherein the back panel unit is arranged in the frame unit and is located above one side of the seat basin unit, the bottom of the back panel unit is rotatably connected to the frame unit, and the top of the back panel unit is slidably connected to the frame unit, one end of the transmission unit is connected to one side of the seat basin unit, and the other end of the transmission unit is connected to the bottom of the back panel unit to convert the reciprocating rotation of the seat basin unit into the reciprocating rotation of the back panel unit, when the seat basin unit rotates away from the frame unit, the top of the back panel unit rotates outward and gradually moves out of the frame unit, and when the seat basin unit rotates close to the frame unit, the top of the back panel unit rotates inward and gradually moves into the frame unit.

[0014] Furthermore, a guide groove is provided on the two inner side walls of the skeleton, and the guide groove is arranged at an angle. The back plate unit includes a first limit axis, a second limit axis and a back plate. The first limit axis and the second limit axis are horizontally arranged in the skeleton from top to bottom, and the two ends of the first limit axis are respectively slidably arranged in the corresponding two guide grooves. The two ends of the second limit axis are rotatably connected to the skeleton, the top of the back plate is fixedly connected to the first limit axis, and the bottom of the back plate is fixedly connected to the second limit axis.

[0015] Compared with the prior art, the beneficial effects of the present invention include: when using the seat, first rotate the frame unit to make the frame unit perpendicular to the first side wall panel. At this time, the lap shaft is toward the lap hole, and then the seat basin unit is rotated away from the frame unit until the seat basin unit is in a horizontal state. Since the lap shaft can be linked with the seat basin unit via the linkage unit, when the seat basin unit is rotated away from the frame unit, the lap shaft moves toward the lap hole, and the seat can be overlapped with the second side wall panel by docking the lap shaft with the lap seat. The observer seat realizes the installation of the seat and the left and right wall panels of the aircraft, meets the working conditions requirements of the seat use and the seat storage, and solves the matching needs of the aircraft observer seat under specific models. When the seat is in working state, the other side of the seat can be overlapped with the second side wall panel, and the other side of the seat can be effectively supported, and the strength requirements can be shared by the wall panels on both sides, thereby reducing the weight of the wall panels and the seat structure, improving operational economy, and increasing the service life of the seat and the wall panels. The movement of the lap shaft and the folding action of the seat basin unit can be linked without manual operation, thereby improving human-machine ergonomics. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of a laterally retractable observer seat provided by the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of a laterally retractable observer seat provided by the present invention at another viewing angle; Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure of a sideways retractable observer seat after omitting the rear cover; Figure 4 yes Figure 3 A schematic diagram of a three-dimensional structure of the upper half of a laterally retractable observer seat; Figure 5 yes Figure 3 A schematic diagram of a three-dimensional structure of the lower half of a laterally retractable observer seat; Figure 6 It is a schematic diagram of the three-dimensional structure of a first mounting seat in a laterally retractable observer seat provided by the present invention; Figure 7It is a schematic diagram of the three-dimensional structure of a lap seat in a laterally retractable observer seat provided by the present invention; In the figure: 100-frame unit, 110-first mounting seat, 111-first clamping hole, 112-second clamping hole, 120-second mounting seat, 130-frame, 131-first through hole, 132-second through hole, 133-guide groove, 200-seat basin unit, 210-mounting shaft, 220-seat basin, 230-elastic component, 240-seat cushion, 300-lap unit, 310-lap seat, 311-lap hole, 312-outer frame, 313-first guide rod, 314-inner frame, 315-second guide rod, 316- Inner seat, 317 - first adjusting member, 318 - second adjusting member, 320 - overlapping shaft, 400 - linkage unit, 410 - adapter plate, 420 - joint bearing, 430 - connecting rod, 500 - locking unit, 510 - locking pin, 520 - driving assembly, 521 - rotating shaft, 522 - connecting rod, 523 - steel cable, 524 - handle, 525 - elastic member, 600 - back plate unit, 610 - first limiting shaft, 620 - second limiting shaft, 630 - back plate, 640 - back pad, 700 - transmission unit, 710 - hanging plate. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] The present invention provides a side-folding observer seat, the structure of which is as follows: Figure 1 - Figure 5 As shown, it includes a skeleton unit 100, a seat basin unit 200, a lap unit 300 and a linkage unit 400, one side of the skeleton unit 100 is rotatably connected to the first side wall plate; one side of the seat basin unit 200 is rotatably connected to the bottom of the skeleton unit 100; the lap unit 300 includes a lap seat 310 and a lap shaft 320, the lap seat 310 is fixedly connected to the second side wall plate and has a lap hole 311, the lap shaft 320 is slidably connected to the skeleton unit 100, when the skeleton unit 100 is rotatably connected to the first side wall plate When one side wall panel is vertical, the lap shaft 320 faces the lap hole 311; the linkage unit 400 connects the seat basin unit 200 and the lap shaft 320, and the lap shaft 320 can be linked with the seat basin unit 200 via the linkage unit 400. When the seat basin unit 200 rotates away from the frame unit 100, the lap shaft 320 moves toward the lap hole 311. When the seat basin unit 200 rotates close to the frame unit 100, the lap shaft 320 moves out of the lap hole 311.

[0019] When the seat is in the stowed state, the seat basin unit 200 is close to the frame unit 100, and the seat basin unit 200 is in a vertical state. At this time, the frame unit 100 is parallel to the first side wall plate and is attached to the first side wall plate. When the seat is used, the frame unit 100 is first rotated to make it perpendicular to the first side wall plate. At this time, the lap shaft 320 is facing the lap hole 311, and then the seat basin unit 200 is rotated away from the frame unit 100 until the seat basin unit 200 is in a horizontal state. Since the lap shaft 320 can be linked with the seat basin unit 200 via the linkage unit 400, when the seat basin unit 200 rotates away from the frame unit 100, the lap shaft 320 moves toward the lap hole 311. The seat can be overlapped with the second side wall panel through the docking of the lap shaft 320 and the lap seat 310. When the observer leaves the seat, the seat basin unit 200 rotates close to the frame unit 100 until the seat basin unit 200 is in a horizontal state. In the vertical state, when the seat basin unit 200 rotates close to the frame unit 100, the lap shaft 320 moves out from the lap hole 311, and the seat can be separated from the second side wall panel by separating the lap shaft 320 from the lap seat 310. Then the frame unit 100 is rotated to make the frame unit 100 parallel to the first side wall panel and abut against the first side wall panel, and the seat is in the storage state again. The observer seat realizes the installation of the seat and the left and right wall panels of the aircraft, meets the working conditions requirements of seat use and seat storage, and solves the matching needs of aircraft observer seats under specific aircraft models. When the seat is in working state, the other side of the seat can be overlapped with the second side wall panel, and the other side of the seat can be effectively supported. The strength requirements can be shared by the wall panels on both sides, thereby reducing the weight of the wall panels and seat structures, improving operational economy, and increasing the service life of seats and wall panels. The movement of the lap shaft 320 and the folding action of the seat basin unit 200 can be linked without manual operation, thereby improving ergonomics.

[0020] As a preferred embodiment, please refer to Figure 3 and Figure 4 The laterally retractable observer seat also includes a locking unit 500, which is connected to the frame unit 100 so that the frame unit 100 has a fastened state with the first side wall plate and can be rotated relative to the first side wall plate to adjust the angle between the frame unit 100 and the first side wall plate, so that the seat can be locked and limited in the storage position and the working position to prevent the seat from rotating when it is in the storage position because it cannot be locked.

[0021] As a preferred embodiment, please refer to Figure 1 and Figure 3 The skeleton unit 100 includes a first mounting seat 110, at least one second mounting seat 120 and a skeleton 130. The first mounting seat 110 and each of the second mounting seats 120 are spaced apart from each other from top to bottom and are fixedly connected to the first side wall plate. The skeleton 130 is vertically arranged, and one side of the skeleton 130 is rotatably connected to the first mounting seat 110 and each of the second mounting seats 120 via a pin shaft. One side of the seat basin unit 200 is rotatably connected to the bottom of the skeleton 130, and the lap shaft 320 is slidably connected to the skeleton 130. The skeleton 130 is rotatably connected to the first side wall plate through the first mounting seat 110 and each of the second mounting seats 120, and has high rigidity. Double shoulder straps can be integrated on the skeleton 130 to improve the restraint and protection performance of the occupant.

[0022] As a preferred embodiment, please refer to Figure 2 and Figure 3 The seat basin unit 200 includes a mounting shaft 210, a seat basin 220 and an elastic component 230. The mounting shaft 210 is horizontally arranged in the frame 130, and both ends of the mounting shaft 210 are fixedly connected to the frame 130. One side of the seat basin 220 is rotatably connected to the mounting shaft 210. Both ends of the elastic component 230 are respectively connected to the mounting shaft 210 and one side of the seat basin 220 so that the other side of the seat basin 220 can be rotated upward and approach the frame 130. After the observer leaves the seat, the seat basin 220 automatically rotates upward and approaches the frame 130 under the elastic action of the elastic component 230 until the seat basin 220 is in a vertical state, and there is no need to manually rotate the seat basin 220 upward.

[0023] As a preferred embodiment, please refer to Figure 2 The seat basin unit 200 further includes a seat cushion 240, which is detachably disposed on the seat basin 220. When the seat basin 220 is in a horizontal state, the seat cushion 240 faces upward, and the seat cushion 240 improves the riding comfort of the observer.

[0024] As a preferred embodiment, please refer to Figure 3 and Figure 5 The elastic component 230 includes at least one torsion spring, each of which is sleeved on the mounting shaft 210, one end of each torsion spring is connected to the mounting shaft 210, and the other end of each torsion spring is connected to one side of the seat basin 220. After the observer leaves the seat, the seat basin 220 automatically rotates upward and approaches the frame 130 under the elastic action of each torsion spring until the seat basin 220 is in a vertical state, without the need to manually rotate the seat basin 220 upward.

[0025] As a preferred embodiment, please refer to Figure 7 The lap seat 310 includes an outer frame 312, at least one first guide rod 313, an inner frame 314, at least one second guide rod 315, an inner seat 316, a first adjustment member 317 and a second adjustment member 318. The outer frame 312 is detachably fixedly connected to the second side wall plate via bolts. Each of the first guide rods 313 is horizontally arranged in the outer frame 312, and both ends of each of the first guide rods 313 are fixedly connected to the outer frame 312. The inner frame 314 is provided with The first adjusting member 317 is provided in the outer frame 312 and is slidably mounted on each of the first guide rods 313. Each of the second guide rods 315 is vertically arranged in the inner frame 314, and both ends of each of the second guide rods 315 are fixedly connected to the inner frame 314. The inner seat 316 is arranged in the inner frame 314 and is slidably mounted on each of the second guide rods 315. The inner seat 316 is provided with the overlapping hole 311. The first adjusting member 317 is connected to the inner frame 314. The first adjusting member 317 is connected to the inner seat 316, and is used to drive the inner seat 316 to move in the horizontal direction to adjust the position of the inner frame 314 in the horizontal direction. The second adjusting member 318 is connected to the inner seat 316, and is used to drive the inner seat 316 to move in the vertical direction to adjust the position of the inner seat 316 in the vertical direction. Since the skeleton 130 and the lap seat 310 are respectively installed on the left and right side wall panels, there will be deviations in the cooperation between the lap shaft 320 and the lap hole 311 on different aircraft. When a deviation occurs, the position of the inner frame 314 in the horizontal direction can be adjusted by operating the first adjusting member 317, thereby adjusting the position of the lap hole 311 in the horizontal direction. The position of the inner seat 316 in the vertical direction can be adjusted by operating the second adjusting member 318, thereby adjusting the position of the lap hole 311 in the vertical direction. The relative position of the lap hole 311 and the lap shaft 320 can be adjusted to meet the requirements of cooperation.

[0026] As a preferred embodiment, please refer to Figure 7 The first adjusting member 317 is a first screw rod, which is horizontally arranged in the outer frame 312, and both ends of the first screw rod are rotatably connected to the outer frame 312. A first screw hole is opened on the inner frame 314, and the first screw rod is sleeved on the first screw rod through the first screw hole. The first screw hole is screwed with the first screw rod. By rotating the first screw rod forward or backward, since the inner frame 314 is screwed with the first screw rod through the first screw hole, and the inner frame 314 is guided and restricted by the first guide rod 313, when the first screw rod rotates forward or backward, the inner frame 314 can be driven to reciprocate along the length direction of the first guide rod 313, thereby realizing the adjustment of the horizontal position of the inner frame 314. As a preferred embodiment, please refer to Figure 7 The second adjusting member 318 is a second screw rod, which is vertically arranged in the inner frame 314, and both ends of the second screw rod are rotatably connected to the inner frame 314. A second screw hole is opened on the inner seat 316, and the second screw rod is sleeved on the second screw rod through the second screw hole. The second screw hole is screwed with the second screw rod. By rotating the second screw rod forward or backward, since the inner seat 316 is screwed with the second screw rod through the second screw hole, and the inner seat 316 is guided and restricted by the second guide rod 315, when the second screw rod rotates forward or backward, the inner seat 316 can be driven to reciprocate along the length direction of the second guide rod 315, thereby realizing the adjustment of the position of the inner seat 316 in the vertical direction.

[0027] As a preferred embodiment, please refer to Figure 3 and Figure 5 A first through hole 131 is provided on the other side wall of the skeleton 130, and the lap shaft 320 is horizontally arranged and slides through the first through hole 131. The movement of the lap shaft 320 can be guided by the first through hole 131, and the lap shaft 320 can be retracted into the skeleton 130 or extended from the skeleton 130.

[0028] As a preferred embodiment, please refer to Figure 3 and Figure 5 The linkage unit 400 includes an adapter plate 410, a joint bearing 420 and a connecting rod 430. The adapter plate 410 is a V-shaped structure. One surface of the adapter plate 410 is fixedly connected to one side of the seat basin 220. An angle a is formed between the other surface of the adapter plate 410 and one side of the seat basin 220. The angle a is an acute angle. The joint bearing 420 is arranged within the angle a and is fixedly connected to the other surface of the adapter plate 410. The connecting rod One end of 430 is connected to the joint bearing 420 with a ball joint, and the other end of the connecting rod 430 is hinged to one end of the lap shaft 320. When the other side of the seat basin 220 rotates upward or downward, the connecting rod 430 is driven to swing through the adapter plate 410 and the joint bearing 420, and the connecting rod 430 drives the lap shaft 320 to extend and retract, thereby realizing the docking and separation of the lap shaft 320 and the lap hole 311 on the lap seat 310.

[0029] As a preferred embodiment, please refer to Figure 6The first mounting seat 110 is provided with a first clamping hole 111 and a second clamping hole 112, the locking unit 500 includes a locking pin 510 and a driving assembly 520, the locking pin 510 is slidably connected to the frame unit 100, the driving assembly 520 is connected to one end of the locking pin 510 so that the other end of the locking pin 510 moves into the first clamping hole 111 or the second clamping hole 112, when the other end of the locking pin 510 moves into the first clamping hole 111, the frame 130 is parallel to the wall panel, when the other end of the locking pin 510 moves into the second clamping hole 112, the frame 130 is perpendicular to the wall panel, when the frame 130 is parallel to the wall panel and abuts against the first side wall panel, the locking pin 510 and the first clamping hole 111 correspond to each other, by manipulating the driving assembly 520, the driving assembly 520 can drive the locking pin 510 to move, so that the other end of the locking pin 510 moves into the second clamping hole 112. The position of the frame 130 is locked in a card hole 111. When the seat needs to be used, the driving assembly 520 can be operated to drive the locking pin 510 to move so that the other end of the locking pin 510 moves out of the first card hole 111, and the frame 130 is in an unlocked state. The frame 130 is rotated to make it perpendicular to the wall panel. At this time, the locking pin 510 corresponds to the second card hole 112. The driving assembly 520 can be operated to drive the locking pin 510 to move so that the other end of the locking pin 510 moves into the second card hole 112, and the position of the frame 130 is locked. When the observer leaves the seat, the driving assembly 520 can be operated to drive the locking pin 510 to move so that the other end of the locking pin 510 moves out of the second card hole 112, and the frame 130 is in an unlocked state.

[0030] As a preferred embodiment, please refer to Figure 3 and Figure 4 A second through hole 132 is opened on one side wall of the skeleton 130, and the locking pin 510 is horizontally arranged and slides through the second through hole 132. The movement of the locking pin 510 can be guided by the second through hole 132, and the locking pin 510 can be retracted into the skeleton 130 or extended from the skeleton 130.

[0031] As a preferred embodiment, please refer to Figure 4The driving assembly 520 includes a rotating shaft 521, a connecting rod 522, a steel cable 523, a handle 524 and an elastic member 525. The rotating shaft 521 is horizontally arranged and rotates through the other side wall of the frame 130. The connecting rod 522 is arranged in the frame 130. One end of the connecting rod 522 is fixedly connected to one end of the rotating shaft 521. One end of the steel cable 523 is connected to the other end of the connecting rod 522. The other end of the steel cable 523 is connected to one end of the locking pin 510. The handle 524 is arranged outside the frame 130. One end of the handle 524 is fixedly connected to the other end of the rotating shaft 521. The elastic member 525 is arranged in the frame 130. Both ends of the elastic member 525 are respectively connected to the frame 130. The frame 130 and the other end of the connecting rod 522 are connected so that the other end of the connecting rod 522 is located in the first position. When the other end of the connecting rod 522 is located in the first position, the other end of the locking pin 510 moves into the first clamping hole 111 or the second clamping hole 112. When the other end of the locking pin 510 needs to be moved out of the first clamping hole 111 or the second clamping hole 112, the handle 524 is rotated. The handle 524 drives the other end of the connecting rod 522 to the second position via the rotating shaft 521, and then drives the other end of the locking pin 510 to move out of the first clamping hole 111 or the second clamping hole 112 via the steel cable 523. The steel cable 523 has a certain rigidity and can play a transmission role.

[0032] As a preferred embodiment, the elastic member 525 is a spring.

[0033] As a preferred embodiment, please refer to Figure 3The laterally retractable observer seat also includes a back panel unit 600 and a transmission unit 700. The back panel unit 600 is arranged in the frame unit 100 and is located above one side of the seat basin unit 200. The bottom of the back panel unit 600 is rotatably connected to the frame unit 100, and the top of the back panel unit 600 is slidably connected to the frame unit 100. One end of the transmission unit 700 is connected to one side of the seat basin unit 200, and the other end of the transmission unit 700 is connected to the bottom of the back panel unit 600 to convert the reciprocating rotation of the seat basin unit 200 into the reciprocating rotation of the back panel unit 600. When the seat basin unit 200 rotates away from the frame unit 100, the top of the back panel unit 600 rotates outward and gradually moves out of the frame unit 100. The seat basin When the unit 200 rotates close to the frame unit 100, the top of the back panel unit 600 rotates inwards and gradually moves into the frame unit 100. The backrest unit is linked with the folding action of the seat basin unit 200. When the seat is in a stowed state, as the seat basin unit 200 rotates close to the frame unit 100, the top of the back panel unit 600 rotates inwards and gradually moves into the frame unit 100, thereby reducing the thickness of the seat when it is stowed. When the seat is in a working state, as the seat basin unit 200 rotates away from the frame unit 100, the top of the back panel unit 600 rotates outwards and gradually moves out of the frame unit 100, thereby improving the riding comfort. The rotation of the seat basin unit 200 drives the backrest unit to work in conjunction, thereby realizing the comfortable posture adjustment of the backrest unit.

[0034] As a preferred embodiment, please refer to Figure 3 and Figure 5, a guide groove 133 is provided on the two inner side walls of the frame 130, and the guide groove 133 is inclined. The back panel unit 600 includes a first limiting shaft 610, a second limiting shaft 620 and a back panel 630. The first limiting shaft 610 and the second limiting shaft 620 are horizontally arranged in the frame 130 from top to bottom. The two ends of the first limiting shaft 610 are respectively slidably arranged in the corresponding two guide grooves 133. The two ends of the second limiting shaft 620 are rotatably connected to the frame 130. The top of the back panel 630 is fixedly connected to the first limiting shaft 610, and the bottom of the back panel 630 is fixedly connected to the second limiting shaft 620. The seat is When in the stowed state, while the other side of the seat basin 220 rotates upward and approaches the frame 130, the first limit shaft 610 rotates inward around the second limit shaft 620 and slides in the guide groove 133, and the first limit shaft 610 gradually moves into the frame 130, thereby reducing the thickness of the seat when it is stowed. When the seat is in the working state, while the other side of the seat basin 220 rotates downward and away from the frame 130, the first limit shaft 610 rotates outward around the second limit shaft 620 and slides in the guide groove 133, and the first limit shaft 610 gradually moves out of the frame 130, thereby improving the riding comfort.

[0035] As a preferred embodiment, please refer to Figure 3 The back panel unit 600 further includes a back pad 640 , which is detachably disposed on the back panel 630 , and the back pad 640 improves the comfort of the observer.

[0036] As a preferred embodiment, please refer to Figure 3 and Figure 5The transmission unit 700 includes two hanging plates 710, which are relatively arranged on both sides of the seat basin 220 and the back plate 630. The hanging plates 710 are L-shaped structures. One plate surface of the hanging plate 710 is fixedly connected to the seat basin 220, and the other plate surface of the hanging plate 710 is fixedly connected to the second limiting shaft 620. When the other side of the seat basin 220 rotates upward and approaches the frame 130, one plate surface of the hanging plate 710 will be driven to rotate upward, and then the other plate surface of the hanging plate 710 will be driven to rotate downward. The first limiting shaft 610 rotates inward around the second limiting shaft 620 and is fixedly connected to the guide groove 133. The first limiting shaft 610 slides and gradually moves into the frame 130, thereby reducing the thickness of the seat when it is stored. When the other side of the seat basin 220 rotates downward and away from the frame 130, it drives one surface of the hanging plate 710 to rotate downward, and then drives the other surface of the hanging plate 710 to rotate upward. The first limiting shaft 610 rotates outward around the second limiting shaft 620 and slides in the guide groove 133. The first limiting shaft 610 gradually moves out of the frame 130, thereby improving the comfort when riding. The rotation of the seat basin 220 drives the back panel 630 to rotate in conjunction, thereby realizing the comfortable posture adjustment of the back panel 630.

[0037] In order to better understand the present invention, the following Figure 1 - Figure 7 The working principle of the technical solution of the present invention is described in detail: When the seat is in the stowed state, the seat basin 220 automatically rotates upward and approaches the frame 130 under the elastic action of the torsion spring until the seat basin 220 is in a vertical state. At this time, the frame 130 is parallel to the first side wall panel and is close to the first side wall panel. When the seat is used, the handle 524 is rotated, and the handle 524 drives the other end of the connecting rod 522 to rotate upward via the rotating shaft 521, and then drives the other end of the locking pin 510 to move out of the first card hole 111 via the steel cable 523. The frame 130 is in the unlocked state. The frame 130 is rotated so that it is perpendicular to the wall panel. At this time, the lap shaft 320 is toward the lap hole 311, and then rotated downward. The other side of the seat basin 220 is rotated downward and away from the frame 130, and the connecting rod 430 is driven to swing through the adapter plate 410 and the joint bearing 420. The connecting rod 430 drives the lap shaft 320 to extend, and the other end of the lap shaft 320 gradually moves into the lap seat 310. The seat can be connected with the second side wall panel by docking the lap shaft 320 with the lap seat 310. When the other side of the seat basin 220 is rotated downward and away from the frame 130, one surface of the hanging plate 710 will be driven to rotate downward, and then the other surface of the hanging plate 710 will be driven to rotate upward. , the first limiting shaft 610 rotates outward around the second limiting shaft 620 and slides in the guide groove 133, the first limiting shaft 610 gradually moves out of the frame 130, and drives the top of the back panel 630 to move out of the frame unit 100, thereby improving the comfort when riding, when the observer leaves the seat, the other side of the seat basin 220 rotates upward and approaches the frame 130 until the seat basin 220 is in a vertical state, because when the other side of the seat basin 220 rotates upward and approaches the frame 130, the connecting rod 430 is driven to swing through the adapter plate 410 and the joint bearing 420, and the connecting rod 430 drives the retraction of the lap shaft 320, and the lap The other end of the shaft 320 gradually moves out from the lap seat 310, and the seat can be separated from the second side wall panel by separating the lap shaft 320 from the lap seat 310. When the other side of the seat basin 220 rotates upward and approaches the frame 130, it will drive one surface of the hanging plate 710 to rotate upward, and then drive the other surface of the hanging plate 710 to rotate downward. The first limiting shaft 610 rotates inward around the second limiting shaft 620 and slides in the guide groove 133. The first limiting shaft 610 gradually moves into the frame 130, and drives the top of the back plate 630 to gradually move into the frame 130, thereby reducing the thickness of the seat when it is stored. Then the frame 130 is rotated.The frame 130 is made parallel to the wall panel and abuts against the first side wall panel, and the seat is in the stowed state again. The observer seat realizes the installation of the seat and the left and right wall panels of the aircraft, meets the working conditions of the seat use and the seat stowage, and solves the matching needs of the aircraft observer seat under a specific aircraft model. When the seat is in the working state, the other side of the seat can be overlapped with the second side wall panel, and the other side of the seat can be effectively supported. The strength requirements can be shared by the wall panels on both sides, thereby reducing the weight of the wall panel and the seat structure, improving the operating economy, and increasing the service life of the seat and the wall panel. The movement of the overlap shaft 320 and the folding action of the seat basin unit 200 can be linked, without manual operation, and improving the ergonomics.

[0038] The sideways retractable observer seat provided by the present invention has the following beneficial effects: (1) Since the frame 130 and the lap seat 310 are respectively installed on the left and right side wall panels, there will be deviations in the matching between the lap shaft 320 and the lap hole 311 on different aircraft. When deviations occur, the position of the inner frame 314 in the horizontal direction can be adjusted by operating the first adjusting member 317, thereby adjusting the position of the lap hole 311 in the horizontal direction. The position of the inner seat 316 in the vertical direction can be adjusted by operating the second adjusting member 318, thereby adjusting the position of the lap hole 311 in the vertical direction. In this way, the relative position of the lap hole 311 and the lap shaft 320 can be adjusted to meet the matching requirements. (2) When the other side of the seat basin 220 rotates upward and approaches the frame 130, it drives one surface of the hanging plate 710 to rotate upward, and then drives the other surface of the hanging plate 710 to rotate downward. The first limit shaft 610 rotates inward around the second limit shaft 620 and slides in the guide groove 133. The first limit shaft 610 gradually moves into the frame 130 and drives the top of the back plate 630 to gradually move into the frame 130, thereby reducing the thickness of the seat when it is stored. When the other side of the seat basin 220 rotates downward and moves away from the frame 130, In the process of leaving the frame 130, one surface of the hanging plate 710 will be driven to rotate downward, and then the other surface of the hanging plate 710 will be driven to rotate upward, the first limiting shaft 610 will rotate outward around the second limiting shaft 620, and slide in the guide groove 133, the first limiting shaft 610 will gradually move out of the frame 130, and drive the top of the back plate 630 to move out of the frame unit 100, thereby improving the comfort of riding, the rotation of the seat basin 220 drives the back plate 630 to work in conjunction, and realizes the comfortable posture adjustment of the back plate 630; (3) The locking unit 500 allows the seat to be locked in the storage position and the working position, thereby preventing the seat from rotating when in the storage position due to the inability to be locked; (4) The observer seat realizes the installation of the seat and the left and right wall panels of the aircraft, meets the working conditions requirements of the seat use and seat storage, and solves the matching needs of aircraft observer seats under specific aircraft models. When the seat is in working condition, the other side of the seat can be overlapped with the second side wall panel, and the other side of the seat can be effectively supported. The strength requirements can be shared by the wall panels on both sides, thereby reducing the weight of the wall panels and the seat structure, improving operational economy, and increasing the service life of the seat and the wall panels. The movement of the overlap shaft 320 and the folding action of the seat basin unit 200 can be linked, without the need for manual operation, thereby improving human-machine ergonomics.

[0039] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A sideways retractable observer seat, characterized in that: include: a frame unit, one side of which is rotatably connected to a first side wall panel in the cabin; A seat basin unit, one side of which is rotatably connected to the bottom of the frame unit; A lap joint unit, comprising a lap joint seat and a lap joint shaft, wherein the lap joint seat is fixedly connected to the second side wall plate and has a lap joint hole, and the lap joint shaft is slidably connected to the frame unit, and when the frame unit is perpendicular to the first side wall plate, the lap joint shaft faces the lap joint hole; A linkage unit connects the seat basin unit and the lap shaft. The lap shaft can be linked with the seat basin unit via the linkage unit. When the seat basin unit rotates away from the frame unit, the lap shaft moves toward the lap hole. When the seat basin unit rotates close to the frame unit, the lap shaft moves out of the lap hole.

2. The laterally retractable observer seat according to claim 1, characterized in that: It also includes a locking unit connected to the frame unit so that the frame unit has a fastened state with the first side wall plate and an adjustable state in which it can rotate relative to the first side wall plate to adjust the angle between the frame unit and the first side wall plate.

3. The laterally retractable observer seat according to claim 2, characterized in that: The skeleton unit includes a first mounting seat, at least one second mounting seat and a skeleton. The first mounting seat and each of the second mounting seats are spaced apart from top to bottom and are fixedly connected to the first side wall plate. The skeleton is vertically arranged, and one side of the skeleton is rotatably connected to the first mounting seat and each of the second mounting seats via a pin shaft. One side of the chair basin unit is rotatably connected to the bottom of the skeleton, and the lap shaft is slidably connected to the skeleton.

4. The laterally retractable observer seat according to claim 3, characterized in that: The seat basin unit includes a mounting shaft, a seat basin and an elastic component. The mounting shaft is horizontally arranged in the frame, and both ends of the mounting shaft are fixedly connected to the frame. One side of the seat basin is rotatably connected to the mounting shaft, and both ends of the elastic component are respectively connected to the mounting shaft and one side of the seat basin to allow the other side of the seat basin to rotate upward and approach the frame.

5. The laterally retractable observer seat according to claim 1, characterized in that: The lap seat comprises an outer frame, at least one first guide rod, an inner frame, at least one second guide rod, an inner seat, a first adjusting member and a second adjusting member, the outer frame is detachably fixedly connected to the second side wall plate via bolts, each of the first guide rods is horizontally arranged in the outer frame, and both ends of each of the first guide rods are fixedly connected to the outer frame, the inner frame is arranged in the outer frame and slidably sleeved on each of the first guide rods, each of the second guide rods is vertically arranged in the inner frame, and both ends of each of the second guide rods are fixedly connected to the inner frame, the inner seat is arranged in the inner frame and slidably sleeved on each of the second guide rods, the inner seat is provided with the lap hole, the first adjusting member is connected to the inner frame for driving the inner frame to move in the horizontal direction to adjust the position of the inner frame in the horizontal direction, and the second adjusting member is connected to the inner seat for driving the inner seat to move in the vertical direction to adjust the position of the inner seat in the vertical direction.

6. The laterally retractable observer seat according to claim 4, characterized in that: The linkage unit includes an adapter plate, a joint bearing and a connecting rod. The adapter plate is a V-shaped structure. One surface of the adapter plate is fixedly connected to one side of the seat basin. An angle a is formed between the other surface of the adapter plate and one side of the seat basin. The angle a is an acute angle. The joint bearing is arranged within the angle a and is fixedly connected to the other surface of the adapter plate. One end of the connecting rod is connected to the joint bearing with a ball joint, and the other end of the connecting rod is hinged to one end of the lap shaft.

7. The laterally retractable observer seat according to claim 3, characterized in that: The first mounting seat is provided with a first clamping hole and a second clamping hole, the locking unit includes a locking pin and a driving assembly, the locking pin is slidably connected to the frame unit, the driving assembly is connected to one end of the locking pin so that the other end of the locking pin moves into the first clamping hole or the second clamping hole, when the other end of the locking pin moves into the first clamping hole, the frame is parallel to the wall panel, and when the other end of the locking pin moves into the second clamping hole, the frame is perpendicular to the wall panel.

8. The laterally retractable observer seat according to claim 7, characterized in that: The driving assembly includes a rotating shaft, a connecting rod, a steel cable, a handle and an elastic member. The rotating shaft is horizontally arranged and rotates to pass through the other side wall of the frame. The connecting rod is arranged in the frame, one end of the connecting rod is fixedly connected to one end of the rotating shaft, one end of the steel cable is connected to the other end of the connecting rod, and the other end of the steel cable is connected to one end of the locking pin. The handle is arranged outside the frame, one end of the handle is fixedly connected to the other end of the rotating shaft, and the elastic member is arranged in the frame, and both ends of the elastic member are respectively connected to the frame and the other end of the connecting rod, so that the other end of the connecting rod is located in the first position. When the other end of the connecting rod is located in the first position, the other end of the locking pin moves into the first clamping hole or the second clamping hole.

9. The laterally retractable observer seat according to claim 3, characterized in that: It also includes a backplate unit and a transmission unit, the backplate unit is arranged in the frame unit and is located above one side of the seat basin unit, the bottom of the backplate unit is rotatably connected to the frame unit, and the top of the backplate unit is slidably connected to the frame unit, one end of the transmission unit is connected to one side of the seat basin unit, and the other end of the transmission unit is connected to the bottom of the backplate unit, so as to convert the reciprocating rotation of the seat basin unit into the reciprocating rotation of the backplate unit, when the seat basin unit rotates away from the frame unit, the top of the backplate unit rotates outward and gradually moves out of the frame unit, and when the seat basin unit rotates close to the frame unit, the top of the backplate unit rotates inward and gradually moves into the frame unit.

10. The laterally retractable observer seat according to claim 9, characterized in that: A guide groove is provided on the two inner side walls of the skeleton, and the guide groove is arranged obliquely. The back plate unit includes a first limit axis, a second limit axis and a back plate. The first limit axis and the second limit axis are horizontally arranged in the skeleton from top to bottom, and the two ends of the first limit axis are respectively slidably arranged in the corresponding two guide grooves. The two ends of the second limit axis are rotatably connected to the skeleton, the top of the back plate is fixedly connected to the first limit axis, and the bottom of the back plate is fixedly connected to the second limit axis.

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