Seat lumbar for heavy load aircraft

Abstract

The utility model relates to the technical field of lumbar support, disclose a seat lumbar support for big load airplane, include: support spare, support spare can elastically deform, support spare has the joint surface and support surface, support spare's support surface is used to pilot waist department and leans against, casing is used to install to the seat, installation department is set up at least one on the casing, the joint surface elastically deformed of support spare and installation department can detachable connection, support spare is slidably arranged on installation department along the height direction, in the utility model, casing is installed to the seat, sets up installation department on the casing, and the joint connection of support spare elastically deformed makes that support spare is along the height direction on installation department and slides and adjusts the height, simultaneously, because the support spare with elastic deformation will not cause the influence to pilot when the seat is ejected.

Description

Technical Field

[0001] This utility model relates to the field of lumbar support technology, specifically to a lumbar support for a seat in a high-load aircraft. Background Technology

[0002] Pilots often need to maintain a seated posture in the cockpit for extended periods during flight missions. Prolonged sitting can easily lead to fatigue and discomfort in the lower back muscles. A lumbar support can provide necessary support and reduce pressure on the lower back.

[0003] In existing technologies, the common method is to fix the lumbar support to the flight seat. However, this method makes it inconvenient to adjust the lumbar support vertically along the seat height. This prevents pilots from adjusting the lumbar support according to their individual body shape and comfort needs, limiting its adaptability to different pilots and thus increasing fatigue during flight. Furthermore, massage or lumbar support structures installed inside car seats cannot be directly applied to flight equipment because these structures contain components such as bolts and sliding blocks, which could pose a safety threat to the pilot during ejection. Utility Model Content

[0004] In view of this, the present invention provides a lumbar support for a seat in a high-load aircraft to solve the problem that the existing lumbar support structure, when applied to the seat of a high-load aircraft, cannot meet the requirements of altitude adjustment while avoiding the impact on the pilot during ejection.

[0005] This utility model provides a lumbar support for a seat in a high-load aircraft, comprising: a support member, the support member being elastically deformable, the support member having a snap-fit ​​surface and a support surface, the support surface of the support member being used for the pilot's lumbar support;

[0006] Housing for mounting to the seat;

[0007] At least one mounting part is provided on the housing. The support member is detachably connected to the mounting part after the snap-fit ​​surface is elastically deformed. The support member is slidably disposed on the mounting part along the height direction.

[0008] The shell is installed on the seat, and a mounting part is set on the shell. After the support member elastically deforms, it is snapped into the mounting part. This abandons the structure of rigid sliders used in related technologies. This allows the support member to slide along the height direction on the mounting part to adjust the height. Because the support member has elastic deformation, it will not affect the pilot when the seat is ejected. This enables personalized adjustment of the pilot's lumbar support, which greatly improves the comfort and safety of long-haul flights.

[0009] In one optional embodiment, the support member includes: a first support portion and a second support portion, wherein the first support portion is provided with a support surface, and the second support portion is vertically disposed on the side of the first support portion away from the support surface.

[0010] By setting a first support part and a second support part, the first support part is used to support the pilot's waist, while the second support part is used to engage with the mounting part. When the first support part is perpendicular to the second support part, the support surface of the first support part can effectively support the pilot's waist. When the pilot adjusts the height of the support part, the second support part can slide along the height direction within the mounting part.

[0011] In one alternative embodiment, the first support portion has at least one inwardly recessed first recess on the support surface, the first recessed portion being used to accommodate the pilot's spine when the pilot leans against the first support portion.

[0012] By providing a first recess on the first support portion of the support member, when the pilot leans against the support member, the lower back part abuts against the support surface of the first support member, and the spine is located in the first recess, which makes the pilot's lower back and spine more comfortable and reduces the pressure on the pilot's lower back during long-term flights.

[0013] In one alternative embodiment, the mounting portion is a mounting groove provided on the housing, and the snap-fit ​​surface of the support member snaps into the mounting groove.

[0014] The snap-fit ​​surface of the support can snap onto the two opposite side walls of the mounting groove. During installation, the support is elastically compressed under force and placed into the mounting groove. The snap-fit ​​surface fits tightly against the side wall, ensuring the support is stable. When the height of the support needs to be adjusted, the support can slide along the extension direction of the mounting groove, making the adjustment of the support more convenient.

[0015] In one alternative embodiment, a snap-fit ​​member is provided on the end of the second support portion away from the first support portion, and the snap-fit ​​member passes through the mounting groove and snaps into the back plate.

[0016] When the second support part is snapped into the mounting groove, the snap-fit ​​part of the second support part passes through the mounting groove and snaps onto the housing, thereby increasing the firmness of the snap-fit ​​between the support part and the housing.

[0017] In one optional embodiment, the housing includes a back plate and a mounting shell, the back plate being detachably connected to the mounting shell, the back plate being provided with the mounting portion, and the mounting shell having a clearance groove for avoiding the support member.

[0018] By setting the housing as a detachable connection between the back plate and the mounting shell, the support is installed on the back plate, and a part of the support is located in the clearance groove, ensuring that the support can slide freely in the clearance groove when it slides on the mounting part.

[0019] In one alternative embodiment, the housing is provided with a clamping device on the side facing the support member for clamping the pilot's waist on both sides.

[0020] The clamping device, adjusted by rotation, fits snugly against the pilot's waist, providing extra support and further reducing fatigue during long flights.

[0021] In one optional embodiment, the clamping device includes: a first rotating member and a second rotating member arranged symmetrically at intervals, a pressure member being provided between the first end of the first rotating member and the first end of the second rotating member, the two ends of the pressure member being respectively connected to the first end of the first rotating member and the first end of the second rotating member, and the second ends of the first rotating member and the second rotating member being rotatably connected to the housing.

[0022] When the pilot leans against the pressure member, the pressure member moves toward the housing, causing the first end of the first rotating member and the first end of the second rotating member to move closer to each other, thereby clamping the pilot's waist.

[0023] By setting up a first rotating member and a second rotating member, when the pilot leans against the support member, when the pilot is in a high-G flight state, the pilot's waist position applies force to the pressure. At this time, the pressure member is moved towards one side of the shell, which drives the first end of the first rotating member and the first end of the second rotating member to move towards each other, thereby clamping the pilot's waist position.

[0024] In one alternative embodiment, the pressure member has an elastic deformation force and a force that drives the first end of the first rotating member and the first end of the second rotating member away from each other.

[0025] When the pressure component has an elastic deformation force, when the pilot relaxes and leans against it, the pressure component returns to its original deformation, causing the end of the rotating component to move away, reducing the clamping force on the waist and improving comfort.

[0026] In one alternative embodiment, the pressure member is provided with a through groove to avoid the support member.

[0027] The through groove allows the support to move within the through groove of the pressure component, preventing the pressure component from affecting the movement of the support. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a front view of a lumbar support for a high-load aircraft according to an embodiment of the present invention.

[0030] Figure 2 for Figure 1 The rear view of the seat lumbar support shown;

[0031] Figure 3 for Figure 1 The image shown is a 3D view of the seat lumbar support.

[0032] Figure 4 for Figure 1 The exploded view of the seat lumbar support shown;

[0033] Figure 5 for Figure 4 Exploded view of the other side of the lumbar support of the seat.

[0034] Figure 6 This is a cross-sectional view of another embodiment of the seat lumbar support of this utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Support component; 2. Snap-fit ​​surface; 3. Support surface; 4. First support part; 5. Second support part; 6. First recessed part; 7. Mounting groove; 8. Snap-fit ​​component; 9. Back plate; 10. Mounting shell; 11. First rotating component; 12. Second rotating component; 13. Pressure component; 14. Through groove. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] Example 1

[0039] In current aviation technology, lumbar supports are commonly fixed to flight seats to provide lumbar support for pilots. However, this method has a significant limitation: while the lumbar support can be adjusted in height while on the seat, it's inconvenient to adjust it during flight. During flight, pilots need to adjust both the lumbar support and the straps simultaneously, greatly increasing the difficulty of adjustment. If only the lumbar support is adjusted while the straps are not, the lumbar support may return to its previous height after prolonged use. The inconvenience of adjusting the lumbar support's position during flight significantly limits its adaptability to different pilots. As a result, pilots may experience increased fatigue during long flights. Furthermore, massage or lumbar support structures originally designed for car seats cannot be directly applied to flight equipment. These structures typically contain rigid components such as bolts, which could detach in an ejection emergency, posing a potential threat to pilot safety.

[0040] The following is combined Figures 1 to 6 The following describes embodiments of the present invention.

[0041] According to an embodiment of this utility model, in one aspect, a lumbar support for a high-load aircraft seat is provided, comprising: a support member 1 and a housing. The support member 1 is used for occupant support, and the housing is used to fix the support member 1 to the seat. The support member 1 is elastically deformable and has a snap-fit ​​surface 2 and a support surface 3. The support surface 3 of the support member 1 is used for the pilot's lumbar support. The housing is used for mounting onto the seat. At least one mounting part is provided on the housing. After the snap-fit ​​surface 2 of the support member 1 is elastically deformed, it is detachably connected to the mounting part. The support member 1 is slidably mounted on the mounting part along the height direction.

[0042] During installation, align the snap-fit ​​surface 2 of the support member 1 with the mounting part of the housing. Compress the snap-fit ​​surface 2 of the support member 1 to align it with the mounting part of the housing. When the support member 1 is released, it returns to its natural state due to its elastic deformation capacity, at which point the snap-fit ​​surface 2 of the support member 1 abuts and is fixed to the mounting part. This design allows pilots to adjust the lumbar support position vertically according to their needs. When height adjustment is required, simply compress the support member 1 slightly and slide it to the appropriate position, then release it to fix it, thus achieving height adjustment.

[0043] The shell is installed on the seat, and a mounting part is provided on the shell. After the support member 1 is elastically deformed, it is snapped into the mounting part. This abandons the structure of rigid sliders used in related technologies. This allows the support member 1 to slide along the height direction on the mounting part to adjust the height. Because the support member 1 has elastic deformation, it will not affect the pilot when the seat is ejected. This enables personalized adjustment of the pilot's lumbar support, which greatly improves the comfort and safety of long-duration flights.

[0044] Specifically, support component 1 connects to the seat via snap-fit ​​surface 2. Support component 1 is made of PU material with a Shore C18 hardness. PU material has good elasticity. The finished product uses imported water-based spray-coated skin material, which is soft, fireproof, non-toxic, odorless, and antibacterial. The surface is coated with nano-antibacterial material, and the surface is a liquid skin (liquid skin is hyperbranched polylysine material, which has both highly effective antibacterial and healing-promoting functions, and has no irritating odor or stinging sensation. The characteristic of liquid skin is that it can be used in any color and can be tightly bonded to the EVA material lumbar support and support part, similar to human skin, also called silicone skin), which can kill 99.9% of germs. The pilot can manually adjust the support height to suit personal needs. Ventilation holes are provided on both sides of support component 1 to enhance air circulation and reduce back temperature. In addition, the support component can also be made of EVA, with a hardness set to C15 or C21.

[0045] As shown in the figure, in this embodiment, the support member 1 includes a first support portion 4 and a second support portion 5. The first support portion 4 is provided with a support surface 3, and the second support portion 5 is vertically disposed on the side of the first support portion 4 away from the support surface 3. The first support portion 4 is a cylindrical structure and is horizontally disposed. The second support portion 5 is vertically disposed on the side of the first support portion 4 away from the support surface 3 and extends horizontally outward. The second support portion 5 is provided with a snap-fit ​​surface 2. During installation, the second support portion 5 is aligned with the mounting portion on the housing, and the connection is achieved through the elastic deformation of the snap-fit ​​surface 2, ensuring a stable connection. It should be noted that, as an alternative implementation, the first support portion 4 can be configured as a plate-like structure, vertically disposed, and the second support portion 5 can be vertically disposed on the end face of the first support portion 4.

[0046] As shown in the figure, in this embodiment, the first support portion 4 has at least one inwardly recessed first recess 6 on the support surface 3. The first recess 6 is used to accommodate the pilot's spine when the pilot leans against the first support portion 4. Specifically, the first recess 6 is an annular groove located at the middle position along the length of the first support portion 4. When the pilot's spine is located within the first recess 6, the sides of the first recess 6 support the muscles of the human spine, increasing the pilot's comfort. By providing the first recess 6 on the first support portion 4 of the support member 1, when the pilot leans against the support member 1, the lower back part abuts against the support surface 3 of the first support member 1, and the spine is located in the first recess 6, making the pilot's waist and spine more comfortable and reducing the pressure on the lower back during long-term flights. It should be noted that, as an alternative implementation, the first recess 6 may not be provided, and the support member 1 can still provide support for the waist. It should be noted that, as an alternative implementation, the first recess 6 may not be configured as an annular groove, or the first recess 6 may only be provided on the support surface 3.

[0047] As shown in the figure, in this embodiment, the mounting part is a mounting groove 7 provided on the housing, and the snap-fit ​​surface 2 of the support member 1 snaps into the mounting groove 7. In this embodiment, the mounting groove 7 is a long strip-shaped through groove, and the mounting groove 7 is arranged in the vertical direction. The two opposite surfaces of the second support member 5 are snap-fit ​​surfaces 2, and the two snap-fit ​​surfaces 2 respectively snap into the two vertical inner surfaces of the mounting groove 7. It should be noted that, as an alternative implementation, the mounting part may not be a groove, but rather two protrusions extending outward in the horizontal direction on the side end face of the housing, with the protrusions spaced apart. The protrusions are vertically arranged long strips, and the mounting part of the support member 1 is formed between the two protrusions. The support member 1 snaps into the mounting part between the protrusions, which can also achieve up and down sliding along the height direction.

[0048] The snap-fit ​​surface 2 of the support member 1 can snap onto the two opposite side walls of the mounting groove 7. During installation, the support member 1 is elastically compressed under force and placed into the mounting groove 7. The snap-fit ​​surface 2 fits tightly against the side wall to ensure that the support member 1 is stable. When the height of the support member 1 needs to be adjusted, the support member 1 can slide along the extension direction of the mounting groove 7, making the adjustment of the support member 1 more convenient.

[0049] Example 2

[0050] Some parts of Example 2 are the same as those of Example 1, and will not be repeated here. The following content describes the different structural features.

[0051] As shown in the figure, in this embodiment, a snap-fit ​​member 8 is provided on the end of the second support part 5 away from the first support part 4. The snap-fit ​​member 8 passes through the mounting groove 7 and snaps into the housing. The snap-fit ​​member 8 is dovetail-shaped, and its width gradually decreases as it extends outward from the end of the second support part 5. The width of the snap-fit ​​member 8 at the connection with the first support part 4 is greater than the width of the first support part 4. When the support part 1 needs to be installed, the snap-fit ​​member 8 is inserted into the mounting groove 7, and its dovetail shape achieves self-locking, ensuring that the support part 1 will not loosen during flight. When adjusting the height, simply slide along the groove, and the snap-fit ​​member 8 will automatically adapt to the new position, making the operation simple and efficient. When disassembly is required, due to the elastic deformation force of the snap-fit ​​member 8 and the support part 1, the snap-fit ​​member 8 is compressed, making its width smaller than the width of the mounting groove 7, and the support part 1 can be removed. The design of the snap-fit ​​member 8 not only improves the stability of the support part 1 but also greatly simplifies the installation and disassembly process. It should be noted that, as an alternative implementation, the snap-fit ​​part 8 can be omitted, and the second support part 5 can be snapped into the mounting slot 7 to achieve the snap-fit ​​of the support part.

[0052] When the second support part 5 is engaged in the mounting groove 7, the engaging member 8 of the second support part 5 passes through the mounting groove 7 and engages with the housing, thereby increasing the firmness of the engagement between the support part 1 and the housing.

[0053] As shown in the figure, in this embodiment, the housing includes a back plate 9 and a mounting shell 10. The back plate 9 and the mounting shell 10 are detachably connected. The mounting shell 10 has wrapping tape on its left and right sides, with Velcro straps on the wrapping tapes. After the back plate 9 is attached to the mounting shell 10, the Velcro straps on one side of the mounting shell 10 wrapping tape pass over the back plate 9 and are secured to the Velcro straps on the other side of the wrapping tape. The wrapping tapes and Velcro straps are used to secure the back plate 9 and the mounting shell 10 because they need to separate during ejection to avoid affecting the pilot's safety. The back plate 9 has a mounting section, and the mounting shell 10 has a clearance groove for the support member 1. The clearance groove is rectangular and extends through the mounting groove 7. The width of the clearance groove is greater than the thickness of the support member 1 to ensure that the support member 1 is not obstructed during sliding. The height of the clearance groove is higher than the height of the mounting groove 7, making height adjustments of the support member 1 smoother. It should be noted that, as an alternative implementation, the back plate 9 and the mounting shell 10 can also be fixed together by snap-fit ​​fasteners.

[0054] Specifically, the back panel 9 is made of high-strength, lightweight composite material, ensuring support without adding burden. The back panel 9 has a flat design with the left and right sides slightly raised towards the user, conforming to the curvature of the lumbar support to create a wrapping effect. Multiple openings are provided on the back panel 9 for ventilation and easy attachment to the seat; it can be secured by threading cable ties through the openings. Alternatively, the shell can be placed on the seat without cable ties, allowing the user to lean against it and secure it.

[0055] By configuring the housing as a detachably connected back plate 9 and mounting shell 10, the support member 1 is installed on the back plate 9, and a part of the support member 1 is located in the clearance groove, ensuring that the support member 1 can slide freely in the clearance groove when sliding on the mounting part.

[0056] As shown in the figure, in this embodiment, a clamping device is provided on the side of the housing facing the support member 1 to clamp the pilot's waist on both sides. When the pilot sits in the chair, the clamping device can clamp the pilot's waist on both sides, providing additional support and wrapping around the pilot's waist when under heavy load. It should be noted that, as an alternative implementation, the clamping device can be omitted, and the support member 1 can still provide waist support for the pilot.

[0057] As shown in the figure, in this embodiment, the clamping device includes: a first rotating member 11 and a second rotating member 12 symmetrically spaced apart. A pressure member 13 is disposed between the first end of the first rotating member 11 and the first end of the second rotating member 12. The pressure member 13 is located between the first support portion 4 of the support member 1 and the mounting shell 10. The two ends of the pressure member 13 are respectively connected to the first end of the first rotating member 11 and the first end of the second rotating member 12. The second ends of the first rotating member 11 and the second rotating member 12 are rotatably connected to the shell. It should be noted that, as an alternative implementation, two pressure members 13 can be provided. One end of the pressure member 13 is rotatably connected to the first support portion 4 of the support member 1, and the other end is connected to either the first rotating member 11 or the second rotating member 12. When the support member 1 is squeezed, the elastic deformation of the support member 1 causes the pressure member 13 to move, thereby causing the first rotating member 11 or the second rotating member 12 to clamp.

[0058] In use, the pilot sits in the seat, and the pilot's back first rests against the support member 1, which supports the pilot's back. When the pilot continues to apply force, the force acts on the pressure member 13, causing the pressure member 13 to move towards the housing, driving the first rotating member 11 and the second rotating member 12 to rotate. That is, the first ends of the first rotating member 11 and the first ends of the second rotating member 12 move closer to each other, thereby clamping the pilot's waist between the first rotating member 11 and the second rotating member 12.

[0059] Specifically, the first rotating component 11 and the second rotating component 12 are arc-shaped with their openings facing the person. The arc-shaped first rotating component 11 and the second rotating component 12 provide a higher clamping force on the waist. The arc design conforms to the curve of the human body, provides better wrapping, and further enhances comfort.

[0060] By setting the first rotating member 11 and the second rotating member 12, when the pilot leans against the support member 1, when the pilot is in a high-G flight state, the pilot's waist position exerts force on the pressure. At this time, the pressure member 13 is forced to move towards one side of the shell, which drives the first end of the first rotating member 11 and the first end of the second rotating member 12 to move towards each other, thereby clamping the pilot's waist position.

[0061] As shown in the figure, in this embodiment, the pressure member 13 has an elastic deformation force, and the pressure member 13 has a force that drives the first end of the first rotating member 11 and the first end of the second rotating member 12 away from each other. When the pilot relaxes, the pressure member 13 returns to its original deformation, and the first rotating member 11 and the second rotating member 12 return to their initial state under the action of the pressure member 13. At this time, the first rotating member 11 and the second rotating member 12 are not in contact with the pilot. When the pilot applies force again, the pressure member 13 is stressed again, causing the rotating members to clamp the waist, ensuring stable support under different flight conditions and improving flight safety and comfort. When the pressure member 13 has an elastic deformation force, when the pilot relaxes and leans against it, the pressure member 13 returns to its original deformation, causing the ends of the first rotating member 11 and the second rotating member 12 to move away from each other, and the waist clamping force decreases. Specifically, the pressure member 13 is an elastic thin steel sheet. It should be noted that, as an alternative implementation, the pressure member 13 may not have elastic deformation force. Two springs are respectively provided between the first rotating member 11, the second rotating member 12 and the mounting shell 10. The springs have a force that drives the first end of the first rotating member 11 and the first end of the second rotating member 12 to move toward the shell, that is, the springs have tension.

[0062] As shown in the figure, in this embodiment, the pressure member 13 is provided with a through groove 14 to avoid the support member 1. The shape of the through groove 14 is the same as the shape of the mounting groove 7, which facilitates the movement of the support member 1 in the height direction. The through groove 14 allows the support member 1 to move within the through groove 14 of the pressure member 13, avoiding the pressure member 13 from affecting the movement of the support member 1. It should be noted that, as an alternative implementation, the pressure member 13 may not be provided with the through groove 14. Two pressure members 13 may be provided, symmetrically arranged on both sides of the support member 1, which can also achieve avoidance of the support member 1.

[0063] The installation method for the lumbar support of a seat in a high-load aircraft is as follows: The back panel 9 has several openings. The back panel 9 is fixed to the mounting shell 10 by a wrapping tape. A first rotating member 11 and a second rotating member 12 are rotatably mounted on the left and right sides of the mounting shell 10, respectively. The first rotating member 11 and the second rotating member 12 are arc-shaped. The first end of the first rotating member 11 and the first end of the second rotating member 12 are connected by a pressure member 13. There is a certain gap between the pressure member 13 and the mounting shell 10 to facilitate movement of the pressure member 13 under force. The support member 1 includes a first support part 4 and a second support part 5. The first support part 4 is horizontally positioned, and the second support part 5 is vertically positioned on the side of the first support part 4 facing the shell. A snap-fit ​​member 8, which is dovetail-shaped, is provided at the end of the second support part 5. After the support member 1 is installed into the mounting groove 7, the snap-fit ​​member 8 of the support member 1 fits tightly into the mounting groove 7, ensuring that the support member 1 is stable and does not move. There is a gap between the first support part 4 of the support member 1 and the shell.

[0064] The working principle of the lumbar support for high-load aircraft seats is as follows: When the pilot sits in the chair, his back rests against the support member 1. The support surface 3 of the support member 1 contacts the back, and the spine contacts the first recess 6 of the support member 1. When the pilot continues to apply pressure, the pressure member 13 is compressed, driving the first rotating member 11 and the second rotating member 12 to clamp inward, further conforming to the pilot's lumbar curve and enhancing the support effect. As the pressure is released, the pressure member 13 gradually returns to its original shape, and the rotating members release, ensuring that the pilot's lower back is effectively relaxed and supported during long flights, improving the overall riding experience.

[0065] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A seat lumbar for a heavy load aircraft, characterized in that, include: Support member (1), the support member (1) is elastically deformable, the support member (1) has a snap-fit ​​surface (2) and a support surface (3), the support surface (3) of the support member (1) is used for the pilot's waist to rest against; Housing for mounting to the seat; At least one mounting part is provided on the housing. The snap-fit ​​surface (2) of the support member (1) is elastically deformed and detachably connected to the mounting part. The support member (1) is slidably disposed on the mounting part along the height direction.

2. The seat lumbar for a heavy load aircraft of claim 1, wherein, The support member (1) includes a first support part (4) and a second support part (5). The first support part (4) is provided with a support surface (3), and the second support part (5) is vertically disposed on the side of the first support part (4) away from the support surface (3).

3. The seat lumbar for a heavy load aircraft of claim 2, wherein, The first support (4) has at least one inwardly recessed first recess (6) on the support surface (3), the first recess (6) being used to accommodate the pilot's spine when the pilot leans against the first support (4).

4. The seat lumbar for a heavy load aircraft of claim 2, wherein, The mounting part is a mounting groove (7) provided on the housing, and the snap-fit ​​surface (2) of the support member (1) snaps into the mounting groove (7).

5. The seat lumbar for a heavy load aircraft of claim 4, wherein, A snap-fit ​​member (8) is provided on the end of the second support part (5) away from the first support part (4), and the snap-fit ​​member (8) passes through the mounting groove (7) and snaps into the housing.

6. The seat lumbar for a heavy load aircraft of claim 1, wherein, The housing includes a back plate (9) and a mounting shell (10), the back plate (9) and the mounting shell (10) are detachably connected, the back plate (9) is provided with the mounting part, and the mounting shell (10) has a clearance groove to avoid the support member (1).

7. The seat lumbar for a heavy load aircraft of any one of claims 1-6, wherein, The housing is provided with a clamping device on the side facing the support (1) for clamping the pilot's waist on both sides.

8. The seat lumbar for a heavy load aircraft of claim 7, wherein, The clamping device includes: a first rotating member (11) and a second rotating member (12) arranged symmetrically at intervals. A pressure member (13) is provided between the first end of the first rotating member (11) and the first end of the second rotating member (12). The two ends of the pressure member (13) are respectively connected to the first end of the first rotating member (11) and the first end of the second rotating member (12). The second ends of the first rotating member (11) and the second rotating member (12) are rotatably connected to the housing. When the pilot leans against the pressure member (13), the pressure member (13) moves toward the housing, causing the first end of the first rotating member (11) and the first end of the second rotating member (12) to move closer to each other, thereby clamping the pilot's waist.

9. The seat lumbar for a heavy load aircraft of claim 8, wherein, The pressure member (13) has an elastic deformation force and a force that drives the first end of the first rotating member (11) and the first end of the second rotating member (12) away from each other.

10. The seat lumbar for a heavy load aircraft of claim 8, wherein, The pressure member (13) is provided with a through groove (14) to avoid the support member (1).

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