Aircraft seat height adjusting mechanism

Abstract

The utility model belongs to the technical field of seats, and particularly relates to an aircraft seat height adjusting mechanism which comprises a seat and a seat support on the lower side of the seat, two vertical sliding rails are transversely fixed on a rear cross beam of the seat support at intervals, sliding blocks capable of sliding on the two sliding rails are fixed on a back plate of a seat backrest, and the sliding blocks are fixed on the back plate of the seat backrest. A cylinder body mounting seat of the gas spring is hinged to a back plate of the seat backrest between the two sliding rails, a mounting part of a piston rod extending out of a cylinder body of the gas spring is hinged to the middle part of a cross beam at the rear part of the seat bracket, and a lifting control arm of the gas spring is connected to a lifting handle at the front lower part of a seat basin through a pull wire; the lifting handle is moved to drive the lifting control arm to rotate through the stay wire so as to adjust the lifting height of the seat, the lifting handle is loosened, the lifting control arm resets, and the air spring is locked, and the automobile seat has the advantages of being simple in structure, safe, reliable, convenient to install, maintain and adjust, stable, durable, low in production cost and high in economic value.

Description

Technical Field

[0001] The utility model belongs to the technical field of seats, and in particular relates to a height adjustment mechanism for aircraft seats. Background Art

[0002] Currently, low-altitude aircraft seat structures lack a height adjustment mechanism, which makes it inconvenient for passengers of different body shapes and heights to adjust the seat height as needed, and also brings an unpleasant travel experience to the passengers. Summary of the Invention

[0003] The utility model aims to provide an aircraft seat height adjustment mechanism for low-altitude flying aircraft, which is height-adjustable, convenient to adjust and has a simple structure.

[0004] The purpose of this utility model is to solve:

[0005] An aircraft seat height adjustment mechanism comprises a seat and a seat bracket on the lower side of the seat, two vertical slide rails are fixed to the rear crossbeam of the seat bracket at a transverse interval, a slider that can slide on the two slide rails is fixed to the back plate of the seat backrest, a cylinder mounting seat of a gas spring is hinged to the back plate of the seat backrest between the two slide rails, a mounting portion of a piston rod extending out of the cylinder of the gas spring is hinged to the middle portion of the rear crossbeam of the seat bracket, a lifting control arm of the gas spring is connected to a lifting handle at the front lower portion of the seat basin by a pull wire, and the lifting height of the seat can be adjusted by moving the lifting handle to drive the lifting control arm to rotate via the pull wire, and when the lifting handle is released, the lifting control arm is reset and the gas spring is locked.

[0006] As a further optimization of the above technical solution, the axes of the two slide rails and the axis of the gas spring are arranged parallel to each other.

[0007] As a further optimization of the above technical solution, a cantilever is provided on the piston rod outside the cylinder body of the gas spring, one end of the pull wire is connected to the lifting handle, and the other end passes through the through hole on the cantilever and is connected to the outside of the lifting control arm.

[0008] As a further optimization of the above technical solution, anti-collision rubber blocks are provided at the ends of the slide rails on both sides of the slider.

[0009] As a further optimization of the above technical solution, the seat back and seat basin are an integrated structure made of carbon fiber material.

[0010] As a further optimization of the above technical solution, a protective cover covering the slide rail and the gas spring is provided on the back plate and / or the crossbeam.

[0011] As a further optimization of the above technical solution, a pull wire fixing plate is fixed to the bottom of the bidet, and the pull wire passes through the pull wire fixing plate.

[0012] As a further optimization of the above technical solution, a mounting plate is provided at the lower portion of the seat bracket, and a mounting hole is provided on the mounting plate.

[0013] As a further optimization of the above technical solution, a T-shaped guide portion is provided on the slide rail, and a T-shaped slot that can slide on the T-shaped guide portion is provided on the slider.

[0014] As a further optimization of the above technical solution, the T-slot on the slider includes an internal horizontal groove and a vertical groove connected to the middle of the horizontal groove. The outer diameter of the vertical groove is expanded to form a trapezoidal groove that is small inside and large outside and connected to the vertical groove. A vertical portion is centrally provided on the horizontal portion of the T-shaped guide portion provided on the slide rail, and a trapezoidal portion is provided on the outer side of the vertical portion to slide in cooperation with the trapezoidal groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the present utility model.

[0016] Figure 2 It is a rear view of the utility model with the protective cover removed.

[0017] Figure 3 yes Figure 2 AA section view.

[0018] Figure 4 This is an exploded sectional view of the slider and the slide rail of the utility model.

[0019] Figure 5 It is a three-dimensional schematic diagram of the utility model with the protective cover removed.

[0020] Figure 6 yes Figure 5 Enlarged view of part B. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings. Figures 1-6 :

[0022] A height adjustment mechanism for an aircraft seat 10 includes a seat 10 and a seat bracket 14 on the lower side of the seat 10. Two vertical slide rails 30 are fixed to a rear crossbeam 15 of the seat bracket 14 at intervals. A slider 40 that can slide on the two slide rails 30 is fixed to the back plate of the seat back 12. The mounting seat of the cylinder 21 of the gas spring 20 is hinged to the back plate 16 of the seat back 12 between the two slide rails 30. The mounting portion of the piston rod 22 extending out of the cylinder 21 of the gas spring 20 is hinged to the rear crossbeam 15 of the seat bracket 14. In the middle part of the beam 15, the lifting control arm 24 of the gas spring 20 is connected to the lifting handle 50 at the front lower part of the seat basin 11 through the pull wire 52. Moving the lifting handle 50 drives the lifting control arm 24 to rotate through the pull wire 52, thereby adjusting the lifting height of the seat 10. Release the lifting handle 50, the lifting control arm 24 is reset, and the gas spring 20 is locked. The gas spring 20 is locked, which means that the relative movement between the gas spring 20 and the piston rod 22 is locked, and the height of the seat is locked at the adjusted position.

[0023] As a further optimization of the above technical solution, the axes of the two slide rails 30 and the axis of the gas spring 20 are arranged parallel to each other to ensure smooth movement.

[0024] As a further optimization of the above technical solution, a cantilever 23 is provided on the piston rod 22 outside the cylinder body 21 of the gas spring 20, one end of the pull wire 52 is connected to the lifting handle 50, and the other end passes through the through hole on the cantilever 23 and is connected to the outside of the lifting control arm 24.

[0025] As a further optimization of the above technical solution, anti-collision rubber blocks are provided at the ends of the slide rails 30 on both sides of the slider 40 to prevent collision and noise.

[0026] As a further optimization of the above technical solution, the seat back 12 and the seat basin 11 are an integrated structure made of carbon fiber material.

[0027] As a further optimization of the above technical solution, a protective cover 13 covering the slide rail 30 and the gas spring 20 is provided on the back plate 16 and / or the crossbeam 15, which prevents dust and foreign objects from entering and prevents scratches on the human body.

[0028] As a further optimization of the above technical solution, a wire fixing plate 51 is fixed to the bottom of the bidet 11 , and the wire 52 passes through a through hole on the wire fixing plate 51 .

[0029] As a further optimization of the above technical solution, a mounting plate is provided at the lower portion of the seat bracket 14 , and a mounting hole is provided on the mounting plate.

[0030] As a further optimization of the above technical solution, a T-shaped guide portion is provided on the slide rail 30 , and a T-shaped slot that can slide on the T-shaped guide portion is provided on the slider 40 .

[0031] As a further optimization of the above technical solution, the T-slot on the slider 40 includes an internal transverse groove 41 and a vertical groove 42 connected to the middle part of the transverse groove 41. The outer diameter of the vertical groove 42 is expanded to form a trapezoidal groove 43 that is small inside and large outside and connected to the vertical groove 42. A vertical portion 32 is centrally provided on the transverse portion 31 of the T-shaped guide portion provided on the slide rail 30, and a trapezoidal portion 33 that slides in cooperation with the trapezoidal groove 43 is provided on the outer side of the vertical portion 32. The transverse groove 41 and the trapezoidal groove 43 on the slider 40 cooperate with the transverse portion 31 and the trapezoidal portion 33 on the slide rail 30, which can guide the movement of the slider 40 on the slide rail without generating excessive friction resistance.

[0032] The above-mentioned fixed connection includes commonly used fixed connection methods such as welding, riveting, bolt connection, screw connection, and one-piece molding.

[0033] When a person sits on the seat, they pull the lift handle 50, which pulls the cable, unlocking the gas spring. The person's own weight becomes greater than the thrust of the gas spring, causing the seat to fall along the rails. Releasing the handle locks the seat. The person stands up slightly from the seat, pulls the handle, unlocking the gas spring, and the seat rises along the rails, receiving the thrust of the gas spring. The use of a gas spring allows for a wide range of height adjustment.

[0034] As can be seen from the above, the advantages of the utility model are simple structure, safety and reliability, easy installation, maintenance and adjustment, stability and durability, low production cost and high economic value.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still make simple replacements or modifications of similar technologies to the technical solutions or technical features described in the aforementioned embodiments, and these simple replacements or modifications do not deviate the essence of the corresponding technical solutions from the spirit and essence of the technical solutions of the various embodiments of the present invention, and they are still within the scope of protection of the present invention.

Claims

1. An aircraft seat height adjustment mechanism, comprising a seat and a seat bracket under the seat, characterized in that: Two vertical slide rails are fixed at laterally intervals on the rear crossbeam of the seat bracket, and a slider that can slide on the two slide rails is fixed to the back plate of the seat backrest, and the cylinder mounting seat of the gas spring is hinged to the back plate of the seat backrest between the two slide rails. The mounting part of the piston rod extending out of the cylinder body of the gas spring is hinged to the middle part of the rear crossbeam of the seat bracket, and the lifting control arm of the gas spring is connected to the lifting handle at the front lower part of the seat basin by a pull wire. The lifting height of the seat can be adjusted by moving the lifting handle to rotate the lifting control arm through the pull wire. When the lifting handle is released, the lifting control arm is reset and the gas spring is locked.

2. The aircraft seat height adjustment mechanism according to claim 1, characterized in that: The axes of the two slide rails and the axis of the gas spring are arranged parallel to each other.

3. The aircraft seat height adjustment mechanism according to claim 1, characterized in that: A cantilever is provided on the piston rod extending out of the cylinder body of the gas spring. One end of the pull wire is connected to the lifting handle, and the other end passes through the through hole on the cantilever and is connected to the outside of the lifting control arm.

4. The aircraft seat height adjustment mechanism according to claim 1, characterized in that: Anti-collision rubber blocks are provided at the ends of the slide rails on both sides of the slide block.

5. The aircraft seat height adjustment mechanism according to claim 1, characterized in that: The seat back and seat pan are an integrated structure made of carbon fiber material.

6. The aircraft seat height adjustment mechanism according to claim 1, characterized in that: A protective cover covering the slide rail and the gas spring is provided on the back plate and / or the cross beam.

7. The aircraft seat height adjustment mechanism according to claim 1, characterized in that: A pull wire fixing plate is fixed to the bottom of the bidet, and the pull wire passes through the pull wire fixing plate.

8. The aircraft seat height adjustment mechanism according to claim 1, characterized in that: A mounting plate is provided at the lower portion of the seat bracket, and a mounting hole is provided on the mounting plate.

9. The aircraft seat height adjustment mechanism according to any one of claims 1 to 8, characterized in that: The slide rail is provided with a T-shaped guide portion, and the sliding block is provided with a T-shaped slot that can be matched with and slide on the T-shaped guide portion.

10. The aircraft seat height adjustment mechanism according to claim 9, characterized in that: The T-slot on the slider includes an internal transverse slot and a vertical slot connected to the middle of the transverse slot. The outer diameter of the vertical slot is expanded to form a trapezoidal slot connected to the vertical slot, which is smaller inside and larger outside. A vertical portion is centrally arranged on the transverse portion of the vertical portion of the T-shaped guide portion provided on the slide rail, and a trapezoidal portion is provided on the outer side of the vertical portion to slide in cooperation with the trapezoidal slot.

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