Lightweight double-seat seat assembly of eVTOL aircraft

Abstract

The utility model discloses a light-weight double-seat seat assembly of an eVTOL aircraft. The seat assembly comprises a first C-shaped seat bracket, a second C-shaped seat bracket, a third C-shaped seat bracket and a fourth C-shaped seat bracket, wherein the second C-shaped seat bracket and the first C-shaped seat bracket are arranged side by side in parallel; the third C-shaped seat bracket and the first C-shaped seat bracket are arranged side by side in parallel; the fourth C-shaped seat bracket and the first C-shaped seat bracket are arranged side by side in parallel; the base is fixedly installed on the first C-shaped seat support, the second C-shaped seat support, the third C-shaped seat support and the fourth C-shaped seat support, and the first magazine frame and the second magazine frame are fixedly installed between the second C-shaped seat support and the third C-shaped seat support.

Description

Technical Field

[0001] The utility model relates to an aircraft seat, and more specifically, to a lightweight two-seat seat assembly for an eVTOL aircraft. Background Art

[0002] As a low-altitude aircraft, the seat base of a manned eVTOL must not only meet the longitudinal support strength for the occupants and the seat, but also needs to consider the impact overload (mainly the vertical impact from the head to the soles of the feet) that the occupants may suffer in the event of an accidental crash or forced landing, so as to avoid fatal injuries such as spinal compression and rupture, severe brain injury (violent displacement within the skull), and heart rupture. Although it cannot ultimately improve the survivability of the helicopter, it is necessary to maximize the protection of the safety of the occupants in the event of a crash or forced landing.

[0003] In order to provide longitudinal support for the occupants and the seats, common seat bases use very sturdy large "L"-shaped metal seat brackets. To protect the safety of the occupants, energy-absorbing tube structures, airbag technology or reverse-bow energy-absorbing structures are used to achieve energy absorption. However, these seat bases have problems such as high material requirements, complex structures, and high weight. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the utility model provides a lightweight two-seat seat assembly for an eVTOL aircraft.

[0005] The technical solution adopted by the utility model to solve its technical problems is: constructing a lightweight two-seat seat assembly for an eVTOL aircraft, the seat assembly comprising a first "C"-shaped seat bracket, a second "C"-shaped seat bracket arranged parallel to and in parallel with the first "C"-shaped seat bracket, a third "C"-shaped seat bracket arranged parallel to and in parallel with the first "C"-shaped seat bracket, a fourth "C"-shaped seat bracket arranged parallel to and in parallel with the first "C"-shaped seat bracket, a base fixedly mounted on the first "C"-shaped seat bracket, the second "C"-shaped seat bracket, the third "C"-shaped seat bracket and the fourth "C"-shaped seat bracket, and a first magazine rack and a second magazine rack fixedly mounted between the second "C"-shaped seat bracket and the third "C"-shaped seat bracket;

[0006] The first "C" type seat bracket, the second "C" type seat bracket, the third "C" type seat bracket and the fourth "C" type seat bracket all include a first cross beam, a second cross beam, and an inclined vertical beam fixedly connecting the first end of the first cross beam and the first end of the second cross beam. The top surface of the first cross beam is a horizontal plane that can be fixedly connected to the base, and the bottom surface of the second cross beam is a horizontal plane that can be fixedly connected to the aircraft fuselage.

[0007] In the lightweight two-seat seat assembly of the eVTOL aircraft described in the utility model, the base includes a first seat plate fixedly connected to the first "C"-shaped seat bracket and the second "C"-shaped seat bracket, a second seat plate fixedly connected to the third "C"-shaped seat bracket and the fourth "C"-shaped seat bracket, and an armrest box platform fixedly arranged between the first seat plate and the second seat plate.

[0008] In the lightweight two-seat seat assembly of the eVTOL aircraft described in the utility model, a drawer hole is provided in the armrest box, and the base also includes a storage drawer that can be slidably inserted into the drawer hole.

[0009] In the lightweight two-seat seat assembly of the eVTOL aircraft described in the utility model, a first recessed portion which is recessed downward is provided in the middle of the first seat plate, and the first recessed portion is sandwiched between the first "C"-shaped seat bracket and the second "C"-shaped seat bracket. The first recessed portion is provided with a first recessed hole, and a first decorative cover is provided on the first recessed hole.

[0010] In the lightweight two-seat seat assembly of the eVTOL aircraft described in the utility model, a second recessed portion recessed downward is provided in the middle of the second seat plate, the second recessed portion is clamped between the third "C"-shaped seat bracket and the fourth "C"-shaped seat bracket, the second recessed portion is provided with a second recessed hole, and a second decorative cover is provided on the second recessed hole.

[0011] In the lightweight two-seat seat assembly of the eVTOL aircraft described in the utility model, the two sides of the first magazine rack and the second magazine rack are fixedly connected to the second "C"-shaped seat bracket and the third "C"-shaped seat bracket by screws.

[0012] In the lightweight two-seat seat assembly of the eVTOL aircraft described in the utility model, the first "C"-shaped seat bracket, the second "C"-shaped seat bracket, the third "C"-shaped seat bracket and the fourth "C"-shaped seat bracket are all made of magnesium-aluminum alloy material, and the base material is made of nylon material.

[0013] The implementation of the lightweight two-seat seat assembly of the eVTOL aircraft of the utility model has the following beneficial effects: when using the lightweight two-seat seat assembly of the eVTOL aircraft of the utility model, the second crossbeams of the first "C" type seat bracket, the second "C" type seat bracket, the third "C" type seat bracket and the fourth "C" type seat bracket are fixedly connected to the aircraft fuselage, and then the first magazine rack and the second magazine rack are fixedly installed between the second "C" type seat bracket and the third "C" type seat bracket, and the base is installed on the first "C" type seat bracket, the second "C" type seat bracket, the third "C" type seat bracket and the fourth "C" type seat bracket for fixing, and the assembly of the seat assembly can be completed. When the seat assembly is subjected to longitudinal force overload and is impacted by a force greater than the design specification, the "C" type seat bracket can deform forward and downward along the forward inclination angle of the inclined vertical beam and the "C" type opening direction, and the energy absorption effect is achieved through the deformation of the "C" type seat bracket. The "C"-shaped seat bracket simplifies the bracket and energy absorption structure on the traditional seat base into two or more component structures into one component structure that simultaneously realizes the functions of support and energy absorption. The shape design obtained through rigorous calculations effectively reduces the volume of the bracket, reduces the use of metal materials, and achieves a lightweight effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0015] Figure 1 It is a schematic diagram of the exploded structure of the lightweight two-seat seat assembly of the eVTOL aircraft of the utility model;

[0016] Figure 2 It is a schematic diagram of the assembly structure of a lightweight two-seat seat assembly of the utility model eVTOL aircraft. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0018] like Figure 1 , 2As shown, in the first embodiment of the lightweight two-seat seat assembly of the eVTOL aircraft of the utility model, the seat assembly 10 includes a first "C"-shaped seat bracket 11, a second "C"-shaped seat bracket 12 arranged parallel to and side by side with the first "C"-shaped seat bracket 11, a third "C"-shaped seat bracket 13 arranged parallel to and side by side with the first "C"-shaped seat bracket 11, a fourth "C"-shaped seat bracket 14 arranged parallel to and side by side with the first "C"-shaped seat bracket 11, a base 15 fixedly mounted on the first "C"-shaped seat bracket 11 and the second "C"-shaped seat bracket 12 and the third "C"-shaped seat bracket 13 and the fourth "C"-shaped seat bracket 14, and a first magazine rack 24 and a second magazine rack 25 fixedly mounted between the second "C"-shaped seat bracket 12 and the third "C"-shaped seat bracket 13.

[0019] The first "C" type seat bracket 11, the second "C" type seat bracket 12, the third "C" type seat bracket 13 and the fourth "C" type seat bracket 14 all include a first cross beam 16, a second cross beam 17, and an inclined vertical beam 18 fixedly connecting the first end of the first cross beam 16 and the first end of the second cross beam 17. The top surface of the first cross beam 16 is a horizontal plane that can be fixedly connected to the base 15, and the bottom surface of the second cross beam 17 is a horizontal plane that can be fixedly connected to the aircraft fuselage.

[0020] When the lightweight two-seat seat assembly 10 of the eVTOL aircraft of the utility model is used, the second crossbeam 17 of the first "C" type seat bracket 11, the second "C" type seat bracket 12, the third "C" type seat bracket 13 and the fourth "C" type seat bracket 14 is fixedly connected to the aircraft fuselage, and then the first magazine rack 24 and the second magazine rack 25 are fixedly installed between the second "C" type seat bracket 12 and the third "C" type seat bracket 13, and the base 15 is installed on the first "C" type seat bracket 11, the second "C" type seat bracket 12, the third "C" type seat bracket 13 and the fourth "C" type seat bracket 14 for fixing, and the assembly of the seat assembly 10 can be completed. When the seat assembly 10 is overloaded longitudinally and is impacted by a force greater than the design specification, the "C" type seat bracket can deform forward and downward along the forward tilt angle of the inclined vertical beam 18 and the "C" type opening direction, and the energy absorption effect is achieved through the deformation of the "C" type seat bracket. The "C"-shaped seat bracket simplifies the bracket and energy absorption structure on the traditional seat base 15, which are divided into two or more component structures, into one component structure to achieve the functions of support and energy absorption at the same time. The shape design obtained through rigorous calculation effectively reduces the volume of the bracket, reduces the use of metal materials, and achieves a lightweight effect.

[0021] Specifically, the base 15 includes a first seat plate 19 fixedly connected to the first "C" type seat bracket 11 and the second "C" type seat bracket 12, a second seat plate 20 fixedly connected to the third "C" type seat bracket 13 and the fourth "C" type seat bracket 14, and an armrest box platform 21 fixedly arranged between the first seat plate 19 and the second seat plate 20.

[0022] Furthermore, a drawer hole 22 is provided in the armrest box 21 , and the base 15 further includes a storage drawer 23 that can be slidably inserted into the drawer hole 22 .

[0023] Furthermore, a first recessed portion 26 recessed downward is provided in the middle of the first seat plate 19, and the first recessed portion 26 is sandwiched between the first "C"-shaped seat bracket 11 and the second "C"-shaped seat bracket 12. The first recessed portion 26 is provided with a first recessed hole 28, and a first decorative cover 30 is provided on the first recessed hole 28.

[0024] Similarly, a second recessed portion 27 recessed downward is provided in the middle of the second seat plate 20, and the second recessed portion 27 is sandwiched between the third "C"-shaped seat bracket 13 and the fourth "C"-shaped seat bracket 14. The second recessed portion 27 is provided with a second recessed hole 29, and a second decorative cover 31 is provided on the second recessed hole 29.

[0025] By providing the first recessed portion 26 and the second recessed portion 27, it is possible to save material of the bottom plate and reduce the overall weight, and also to form two storage spaces on the seat.

[0026] In this embodiment, both sides of the first magazine rack 24 and the second magazine rack 25 are fixedly connected to the second “C”-shaped seat bracket 12 and the third “C”-shaped seat bracket 13 by screws.

[0027] Preferably, the first "C"-shaped seat bracket 11, the second "C"-shaped seat bracket 12, the third "C"-shaped seat bracket 13 and the fourth "C"-shaped seat bracket 14 are all made of magnesium-aluminum alloy material, and the base 15 is made of nylon material.

[0028] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A lightweight two-seat seat assembly for an eVTOL aircraft, characterized in that: The seat assembly includes a first "C"-shaped seat bracket, a second "C"-shaped seat bracket arranged parallel to and in parallel with the first "C"-shaped seat bracket, a third "C"-shaped seat bracket arranged parallel to and in parallel with the first "C"-shaped seat bracket, a fourth "C"-shaped seat bracket arranged parallel to and in parallel with the first "C"-shaped seat bracket, a base fixedly mounted on the first "C"-shaped seat bracket, the second "C"-shaped seat bracket, the third "C"-shaped seat bracket and the fourth "C"-shaped seat bracket, and a first magazine rack and a second magazine rack fixedly mounted between the second "C"-shaped seat bracket and the third "C"-shaped seat bracket; The first "C" type seat bracket, the second "C" type seat bracket, the third "C" type seat bracket and the fourth "C" type seat bracket all include a first cross beam, a second cross beam, and an inclined vertical beam fixedly connecting the first end of the first cross beam and the first end of the second cross beam, the top surface of the first cross beam is a horizontal plane that can be fixedly connected to the base, and the bottom surface of the second cross beam is a horizontal plane that can be fixedly connected to the aircraft fuselage.

2. The lightweight two-seat seat assembly for an eVTOL aircraft according to claim 1, characterized in that: The base includes a first seat plate fixedly connected to the first "C"-shaped seat bracket and the second "C"-shaped seat bracket, a second seat plate fixedly connected to the third "C"-shaped seat bracket and the fourth "C"-shaped seat bracket, and an armrest box platform fixedly arranged between the first seat plate and the second seat plate.

3. The lightweight two-seat seat assembly for an eVTOL aircraft according to claim 2, characterized in that: A drawer hole is provided in the armrest box platform, and the base further comprises a storage drawer which can be slidably inserted into the drawer hole.

4. The lightweight two-seat seat assembly for an eVTOL aircraft according to claim 2, characterized in that: A first recessed portion recessed downward is provided in the middle of the first seat plate, the first recessed portion is sandwiched between the first "C"-shaped seat bracket and the second "C"-shaped seat bracket, the first recessed portion is provided with a first recessed hole, and a first decorative cover is provided on the first recessed hole.

5. The lightweight two-seat seat assembly for an eVTOL aircraft according to claim 2, characterized in that: A second recessed portion recessed downward is provided in the middle of the second seat plate, the second recessed portion is sandwiched between the third "C"-shaped seat bracket and the fourth "C"-shaped seat bracket, the second recessed portion is provided with a second recessed hole, and a second decorative cover is provided on the second recessed hole.

6. The lightweight two-seat seat assembly for an eVTOL aircraft according to claim 1, characterized in that: The first magazine rack and the second magazine rack are fixedly connected to the second "C"-shaped seat bracket and the third "C"-shaped seat bracket by screws on both sides.

7. The lightweight two-seat seat assembly for an eVTOL aircraft according to claim 1, characterized in that: The first "C"-shaped seat bracket, the second "C"-shaped seat bracket, the third "C"-shaped seat bracket and the fourth "C"-shaped seat bracket are all made of magnesium-aluminum alloy material, and the base material is made of nylon material.

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