CN114013662A - Fixed wing aircraft seat mounting structure and fixed wing aircraft that stroke is adjustable - Google Patents
Fixed wing aircraft seat mounting structure and fixed wing aircraft that stroke is adjustable Download PDFInfo
- Publication number
- CN114013662A CN114013662A CN202111401509.3A CN202111401509A CN114013662A CN 114013662 A CN114013662 A CN 114013662A CN 202111401509 A CN202111401509 A CN 202111401509A CN 114013662 A CN114013662 A CN 114013662A
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- fixed
- wing aircraft
- mounting
- aircraft seat
- hole
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- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
- B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
- B64D11/0639—Arrangements of seats, or adaptations or details specially adapted for aircraft seats with features for adjustment or converting of seats
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The application discloses adjustable fixed wing aircraft seat mounting structure of stroke and fixed wing aircraft, including the guide rail, be equipped with the locking hole on the guide rail, still sliding connection has adjusting part on the guide rail, is equipped with locking part on the adjusting part, and the seat is installed on adjusting part, fixes the seat on the guide rail through locking part, and the invention is simple in structure, and installation space is little, the simple operation.
Description
Technical Field
The invention relates to the field of vehicle seats, in particular to a fixed-wing aircraft seat mounting structure with an adjustable stroke and a fixed-wing aircraft.
Background
The volume of a cockpit of the existing fixed wing aircraft is limited, in order to save the space of the cockpit, a seat is fixedly arranged in the cockpit, and the travel of the seat can not be adjusted, so that the riding experience of a pilot is poor; some seats can adjust the stroke, but the adjusting structure is comparatively complicated, and the installation procedure is loaded down with trivial details, has not only occupied the space of cockpit and has still increased the manufacturing cost of aircraft, has also increased the weight of aircraft simultaneously, is unfavorable for practicing thrift the manufacturing cost of fixed wing aircraft.
Disclosure of Invention
The invention provides a stroke-adjustable fixed-wing aircraft seat mounting structure aiming at the problems.
The technical scheme adopted by the invention is as follows: an adjustable-stroke fixed-wing aircraft seat mounting structure for adjusting the position of a fixed-wing aircraft seat forward or rearward, comprising:
the guide rails are arranged in parallel, and a plurality of locking holes are formed in the side walls of the two guide rails along the length direction;
the two first sliding seats are respectively arranged on the two guide rails in a sliding manner, and the fixed-wing aircraft seat is fixed with the two first sliding seats;
the locking assembly is arranged on the first sliding seat and comprises an elastic pin matched with the locking hole;
the control component is used for being matched with the elastic pin to enable the elastic pin to be separated from the corresponding locking hole;
the two second sliding seats are respectively arranged on the two guide rails in a sliding manner, the fixed-wing aircraft seat is fixed with the two second sliding seats, and the aircraft seat is arranged on the two guide rails through the first sliding seat and the second sliding seat;
the locking assembly comprises a mounting frame fixed with the first sliding seat, the elastic pin comprises a lock pin and an elastic piece, a pin shaft of the lock pin is arranged on the mounting frame in a sliding mode, one end of the elastic piece is matched with the pin shaft, and the other end of the elastic piece is matched with the mounting frame and used for pushing the pin shaft to stretch into the locking hole.
When the fixed-wing aircraft seat is used in practice, the locking assembly is installed on the two first sliding seats, the two first sliding seats are sleeved on the two guide rails respectively, the specifications of the two guide rails are consistent, the guide rails need to be installed to be parallel, then the fixed-wing aircraft seat is installed on the first sliding seats, the fixed-wing aircraft seat slides on the slide rails through the adjusting assembly by pulling the control component, and when the fixed-wing aircraft seat slides to a proper position, the fixed-wing aircraft seat is matched with the locking holes in the slide rails through the locking assembly, so that the stroke of the fixed-wing aircraft seat can be adjusted; by arranging the two second sliding seats, the airplane seat is ensured to be firmly arranged on the two guide rails, and meanwhile, the stability of the airplane sliding on the two guide rails is also ensured; when the locking assembly works actually, the elastic piece is compressed to force the pin shaft of the lock pin to extend into the locking hole; through with locking Assembly setting on the mount pad fixed with first slide, realize that the lockpin follows the mount pad and removes.
Preferably, the mounting frame comprises a horizontal portion and a vertical portion, the horizontal portion is provided with a through hole, the through hole is used for fixing the mounting frame on the first sliding seat, the vertical portion is provided with a through hole through which the lock pin penetrates, and one end of the elastic element abuts against the inner wall of the vertical portion.
During the in-service use, aim at the mounting hole on the adjusting part with the through-hole of the horizontal part of mounting bracket, be connected mounting bracket and adjusting part through the connecting piece, through setting up the perforation in the vertical part of mounting bracket, stretch out vertical part through the perforation with the one end of lockpin, enlarged the axial home range of lockpin.
Preferably, the lock pin is provided with a limit step for fixing an elastic piece, and the elastic piece is abutted against the limit step.
During the in-service use, the one end of elastic component offsets with the inside wall of the vertical portion of mounting bracket, and the other end of elastic component offsets with spacing step on the lockpin, and the lockpin receives the effort of elastic component, makes the lockpin compress tightly under the normality, ensures that the lockpin can not deviate from spacing hole's position after getting into the locking hole, does not do other unblock operations.
Preferably, one end of the lock pin penetrating out of the vertical part is provided with a connecting hole, and the connecting hole is used for installing a control part.
The control part is convenient to mount by arranging the connecting hole at one end of the lock pin penetrating through the vertical part.
Preferably, the control part is a steel wire rope, two ends of the steel wire rope are respectively connected with connecting holes of lock pins on the two first sliding seats, and a handle is further arranged on the steel wire rope.
When the seat is moved to a proper position, the connecting part is loosened, the elastic part arranged on the lock pin pushes the lock pin into the lock hole, and the seat is fixed on the guide rail; the control part is convenient to pull by arranging the handle on the control part.
Preferably, the guide rail is a hollow pipe, opening plugs are arranged at ports of the guide rail, first mounting holes are formed in the opening plugs, and the opening plugs are fixed inside the hollow pipe through bolt assemblies.
The guide rail adopts a hollow pipeline, so that the weight is reduced, and the flying cost of the airplane is reduced; an opening plug is arranged at the port of the guide rail, so that the first sliding seat is prevented from being separated from the rail.
Preferably, the guide rail is mounted on the fixed-wing aircraft through a support plate, the support plate comprises a horizontally arranged support plate and a vertically arranged mounting plate, a second mounting hole matched with the first mounting hole is formed in the mounting plate, and the bolt assembly sequentially penetrates through the first mounting hole and the second mounting hole to fix the opening plug and the mounting plate in the guide rail.
During the in-service use, install extension board and opening stopper in the guide rail simultaneously through bolt assembly, reach and reduce the installation, reduce installation cost's purpose.
The application discloses fixed-wing aircraft includes the aircraft seat mounting structure described above.
The invention has the beneficial effects that: through setting up two guide rails, slide the fixed wing aircraft seat through adjusting part and set up on two guide rails, realized that the stroke of fixed wing aircraft seat can be adjusted, through setting up locking Assembly, realized fixing the fixed wing aircraft seat on the guide rail, through setting up adapting unit, be convenient for change the stroke of fixed wing aircraft seat, the manipulation is simple, and it is convenient to install.
Description of the drawings:
FIG. 1 is a schematic view of a travel adjustable fixed wing aircraft seat mounting structure;
FIG. 2 is a schematic diagram of a split view of a travel adjustable fixed wing aircraft seat mounting structure;
FIG. 3 is a schematic view of a first carriage and locking assembly;
FIG. 4 is a top view of the first carriage and locking assembly;
FIG. 5 is a schematic view of a plate and opening plug;
fig. 6 is a schematic view of a guide rail in embodiment 2.
The figures are numbered:
1. a first slider; 2. a second slide carriage; 3. a locking hole; 4. a guide rail; 5. an adjustment assembly; 6. a mounting frame; 7. a through hole; 8. a lock pin; 9. an elastic member; 10. a limiting step; 11. perforating; 12. connecting holes; 13. a control component; 14. a handle; 15. an opening plug; 16. a support plate; 17. a bolt assembly; 18. a first mounting hole; 19. a second mounting hole; 20. an arc-shaped groove.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, an adjustable-stroke fixed-wing aircraft seat mounting structure for adjusting the position of a fixed-wing aircraft seat forward or backward, includes:
the guide rail structure comprises two guide rails 4 which are arranged in parallel, wherein a plurality of locking holes 3 are formed in the side walls of the two guide rails 4 along the length direction;
the two first sliding seats 1 are respectively arranged on the two guide rails 4 in a sliding manner, and the fixed-wing aircraft seat is fixed with the two first sliding seats 1;
the locking assembly is arranged on the first sliding seat 1 and comprises an elastic pin which is used for being matched with the locking hole 3;
the control component 13 is used for being matched with the elastic pin so as to enable the elastic pin to be separated from the corresponding locking hole 3;
the two second sliding seats 2 are respectively arranged on two guide rails 4 in a sliding manner, the fixed-wing aircraft seat is fixed with the two second sliding seats 2, and the aircraft seat is arranged on the two guide rails 4 through the first sliding seat 1 and the second sliding seat 2;
locking Assembly, including the mounting bracket 6 fixed with first slide 1, the elastic pin includes lockpin 8 and elastic component 9, and the round pin axle of lockpin 8 slides and sets up on mounting bracket 6, and 9 one end of elastic component and round pin axle cooperation, the other end and the cooperation of mounting bracket 6 for promote the round pin axle and stretch into locking hole 3.
When the fixed-wing aircraft seat is actually used, firstly, the locking assemblies are installed on the two first sliding seats 1, then the two first sliding seats 1 are respectively sleeved on the two guide rails 4, the specifications of the two guide rails 4 are consistent, the guide rails 4 need to be installed to be parallel, then, the fixed-wing aircraft seat is installed on the first sliding seats 1, the fixed-wing aircraft seat slides on the slide rail through the adjusting assembly 5 by pulling the control component 13, and when the fixed-wing aircraft seat slides to a proper position, the fixed-wing aircraft seat is matched with the locking holes 3 on the slide rail through the locking assemblies, so that the stroke of the fixed-wing aircraft seat can be adjusted; by arranging the two second sliding seats 2, the airplane seat is ensured to be firmly arranged on the two guide rails 4, and meanwhile, the stability of the airplane sliding on the two guide rails 4 is also ensured; when the locking assembly works actually, the elastic piece 9 is compressed to force the pin shaft of the lock pin 8 to extend into the locking hole 3; by arranging the locking assembly on a mounting seat fixed with the first slide 1, the locking pin 8 is enabled to move along with the mounting seat.
As shown in fig. 1, the mounting frame 6 includes a horizontal portion and a vertical portion, the horizontal portion is provided with a through hole 7, the through hole 7 is used for fixing the mounting frame 6 on the first sliding seat 1, the vertical portion is provided with a through hole 11 for the lock pin 8 to penetrate through, and one end of the elastic member 9 abuts against the inner wall of the vertical portion.
During actual use, the through hole 7 of the horizontal part of the mounting frame 6 is aligned to the mounting hole in the adjusting component 5, the mounting frame 6 is connected with the adjusting component 5 through the connecting piece, the through hole 11 is formed in the vertical part of the mounting frame 6, one end of the lock pin 8 extends out of the vertical part through the through hole 11, and the axial moving range of the lock pin 8 is enlarged.
As shown in fig. 3, the lock pin 8 is provided with a limit step 10 for fixing the elastic member 9, and the elastic member 9 abuts against the limit step 10.
During practical use, one end of the elastic piece 9 abuts against the inner side wall of the vertical portion of the mounting frame 6, the other end of the elastic piece 9 abuts against the limiting step 10 on the lock pin 8, the lock pin 8 is pressed under the normal state under the action of the elastic piece 9, and the lock pin 8 is ensured not to deviate from the position of the limiting hole without other unlocking operations after entering the locking hole 3.
As shown in fig. 3, one end of the lock pin 8 penetrating through the vertical part is provided with a connecting hole 12, and the connecting hole 12 is used for installing a control part 13.
The control part 13 is convenient to install by arranging a connecting hole 12 at one end of the lock pin 8 penetrating through the vertical part.
As shown in fig. 1, the control part 13 is a steel wire rope, two ends of the steel wire rope are respectively connected with the connecting holes 12 of the lock pins 8 on the mounting frames 6 on the two first sliding bases 1, and a handle 14 is further arranged on the steel wire rope.
When the seat is moved to a proper position, the connecting part is loosened, the elastic part arranged on the lock pin 8 pushes the lock pin 8 into the locking hole 3, and the seat is fixed on the guide rail 4; by providing a pull handle 14 on the control member 13, pulling of the control member 13 is facilitated.
As shown in fig. 2 and 5, the guide rail 4 is a hollow pipe, the ports of the guide rail 4 are provided with opening plugs 15, the opening plugs 15 are provided with first mounting holes 18, and the opening plugs 15 are fixed inside the hollow pipe through bolt assemblies 17.
The guide rail 4 adopts a hollow pipeline, so that the weight is reduced, and the flying cost of the airplane is reduced; an opening plug 15 is arranged at the port of the guide rail 4, so that the first sliding seat 1 is prevented from being separated from the rail.
In practical use, the support plate 16 and the opening plug 15 are simultaneously installed in the guide rail 4 through the bolt assembly 17, so that the purposes of reducing the installation process and reducing the installation cost are achieved.
A fixed wing aircraft, wherein the adjustable-stroke fixed wing aircraft seat mounting structure is according to any one of claims 1 to 9.
Example 2
As shown in fig. 6, the present embodiment is different from embodiment 1 in that a plurality of arc-shaped grooves 20 are provided on the guide rail 4, a plurality of locking holes 3 are provided at the top points of the arc-shaped grooves 20, the surfaces of the first adjusting member and the second adjusting member provided on the first guide rail 4, which are in contact with the guide rail 4, are provided with arc-shaped protrusions matched with the arc-shaped grooves 20, in actual use, when the fixed-wing aircraft seat is pulled to change the stroke, the stroke change distance of the fixed-wing aircraft seat is determined by the fluctuation times, and the locking holes 3 are conveniently found by the lock pin 8, and the structure of the arc-shaped grooves 20 further increases the stability of the fixed-wing aircraft seat on the guide rail 4.
Firstly, respectively sleeving a first sliding seat 1 on two guide rails 4 which are arranged in parallel, fixing an opening plug 15 and a support plate 16 at the port of each guide rail 4 through a bolt assembly 17, and fixing the two guide rails 4 on the floor of an aircraft cockpit through the support plate 16; the locking assembly is arranged on the first sliding seat 1, two ends of the use control component 13 are respectively connected with the connecting holes 12 of the lock pins 8, then the seat is fixed on the adjusting component, when a user feels that the seat space is narrow, the adjusting component is pulled to enable the lock pins 8 in the locking assembly to exit the locking holes 3, meanwhile, the body of the user leans backwards to continuously drive the adjusting component to move, when the seat moves to a proper position, the control component 13 is loosened, the elastic components on the lock pins 8 push the lock pins 8 into the locking holes 3 to fix the seat, when the user feels that the seat space is too large, the seat space can be reduced by reversely operating the steps.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.
Claims (8)
1. A stroke adjustable fixed wing aircraft seat mounting structure for adjusting the position of a fixed wing aircraft seat forward or rearward, comprising:
the guide rails are arranged in parallel, and a plurality of locking holes are formed in the side walls of the two guide rails along the length direction;
the two first sliding seats are respectively arranged on the two guide rails in a sliding manner, and the fixed-wing aircraft seat is fixed with the two first sliding seats;
the locking assembly is arranged on the first sliding seat and comprises an elastic pin matched with the locking hole;
the control component is used for being matched with the elastic pin to enable the elastic pin to be separated from the corresponding locking hole;
the two second sliding seats are respectively arranged on the two guide rails in a sliding manner, the fixed-wing aircraft seat is fixed with the two second sliding seats, and the aircraft seat is arranged on the two guide rails through the first sliding seat and the second sliding seat;
the locking assembly comprises a mounting frame fixed with the first sliding seat, the elastic pin comprises a lock pin and an elastic piece, a pin shaft of the lock pin is arranged on the mounting frame in a sliding mode, one end of the elastic piece is matched with the pin shaft, and the other end of the elastic piece is matched with the mounting frame and used for pushing the pin shaft to stretch into the locking hole.
2. The adjustable-stroke fixed-wing aircraft seat mounting structure of claim 1, wherein said mounting bracket includes a horizontal portion and a vertical portion, said horizontal portion having a through hole for securing said mounting bracket to said first slide, said vertical portion having a through hole for said locking pin to pass through, one end of said elastic member abutting against an inner wall of said vertical portion.
3. The adjustable-stroke fixed-wing aircraft seat mounting structure of claim 1, wherein said locking pin is provided with a limiting step, and said elastic member abuts against said limiting step.
4. The adjustable-stroke fixed-wing aircraft seat mounting arrangement as claimed in claim 3, wherein an end of the latch pin that extends out of the vertical portion is provided with a connection hole for mounting a control component.
5. The adjustable-stroke fixed-wing aircraft seat mounting structure according to claim 1, wherein the control component is a steel wire rope, two ends of the steel wire rope are respectively connected with the connecting holes of the lock pins on the two first sliding seats, and the steel wire rope is further provided with a handle.
6. The adjustable-stroke fixed-wing aircraft seat mounting structure according to claim 1, wherein the guide rails are hollow tubes, ports of the guide rails are provided with opening plugs, the opening plugs are provided with first mounting holes, and the opening plugs are fixed inside the hollow tubes through bolt assemblies.
7. The adjustable-stroke fixed-wing aircraft seat mounting structure according to claim 6, wherein the guide rail is mounted on the fixed-wing aircraft by a support plate, the support plate comprises a horizontally-arranged support plate and a vertically-arranged mounting plate, the mounting plate is provided with a second mounting hole matched with the first mounting hole, and the bolt assembly sequentially penetrates through the first mounting hole and the second mounting hole to fix the opening plug and the mounting plate in the guide rail.
8. A fixed-wing aircraft, wherein the adjustable-stroke fixed-wing aircraft seat mounting structure is according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111401509.3A CN114013662A (en) | 2021-11-19 | 2021-11-19 | Fixed wing aircraft seat mounting structure and fixed wing aircraft that stroke is adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111401509.3A CN114013662A (en) | 2021-11-19 | 2021-11-19 | Fixed wing aircraft seat mounting structure and fixed wing aircraft that stroke is adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114013662A true CN114013662A (en) | 2022-02-08 |
Family
ID=80065985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111401509.3A Pending CN114013662A (en) | 2021-11-19 | 2021-11-19 | Fixed wing aircraft seat mounting structure and fixed wing aircraft that stroke is adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114013662A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2397409A1 (en) * | 2010-06-18 | 2011-12-21 | Bishop GmbH Aeronautical Engineers | Method and system for flexible seat arrangement in airplanes |
| CN102343838A (en) * | 2010-08-03 | 2012-02-08 | 爱信精机株式会社 | Seat slide apparatus for vehicle |
| DE102010051336A1 (en) * | 2010-11-13 | 2012-05-16 | Faurecia Autositze Gmbh | Manually longitudinally adjustable motor vehicle seat |
| JP2012162179A (en) * | 2011-02-07 | 2012-08-30 | Toyota Auto Body Co Ltd | Electric seat slide control system and electric seat slide control device |
| KR101422407B1 (en) * | 2013-04-30 | 2014-07-22 | 주식회사다스 | Walk-in memory apparatus for seat of car |
| CN105936228A (en) * | 2015-03-04 | 2016-09-14 | 丰田纺织株式会社 | Vehicle seat |
| CN206615269U (en) * | 2017-04-14 | 2017-11-07 | 张�林 | A kind of stroller seat recliner |
| CN209553516U (en) * | 2019-07-10 | 2019-10-29 | 卓尔飞机制造（武汉）有限公司 | A kind of light aerocraft seat zipper mechanism |
| CN209700952U (en) * | 2019-03-11 | 2019-11-29 | 福建野马飞机制造有限公司 | A kind of armchair structure of light-duty sport plane |
| CN210961119U (en) * | 2019-11-20 | 2020-07-10 | 唐奇龙 | Novel multifunctional headrest |
| CN212437956U (en) * | 2020-06-16 | 2021-02-02 | 近美健康科技(上海)有限公司 | Liftable headrest structure and seat |
| CN213550741U (en) * | 2020-12-02 | 2021-06-29 | 东莞致诚办公家具有限公司 | Headrest device of seat and seat |
-
2021
- 2021-11-19 CN CN202111401509.3A patent/CN114013662A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2397409A1 (en) * | 2010-06-18 | 2011-12-21 | Bishop GmbH Aeronautical Engineers | Method and system for flexible seat arrangement in airplanes |
| CN102343838A (en) * | 2010-08-03 | 2012-02-08 | 爱信精机株式会社 | Seat slide apparatus for vehicle |
| DE102010051336A1 (en) * | 2010-11-13 | 2012-05-16 | Faurecia Autositze Gmbh | Manually longitudinally adjustable motor vehicle seat |
| JP2012162179A (en) * | 2011-02-07 | 2012-08-30 | Toyota Auto Body Co Ltd | Electric seat slide control system and electric seat slide control device |
| KR101422407B1 (en) * | 2013-04-30 | 2014-07-22 | 주식회사다스 | Walk-in memory apparatus for seat of car |
| CN105936228A (en) * | 2015-03-04 | 2016-09-14 | 丰田纺织株式会社 | Vehicle seat |
| CN206615269U (en) * | 2017-04-14 | 2017-11-07 | 张�林 | A kind of stroller seat recliner |
| CN209700952U (en) * | 2019-03-11 | 2019-11-29 | 福建野马飞机制造有限公司 | A kind of armchair structure of light-duty sport plane |
| CN209553516U (en) * | 2019-07-10 | 2019-10-29 | 卓尔飞机制造（武汉）有限公司 | A kind of light aerocraft seat zipper mechanism |
| CN210961119U (en) * | 2019-11-20 | 2020-07-10 | 唐奇龙 | Novel multifunctional headrest |
| CN212437956U (en) * | 2020-06-16 | 2021-02-02 | 近美健康科技(上海)有限公司 | Liftable headrest structure and seat |
| CN213550741U (en) * | 2020-12-02 | 2021-06-29 | 东莞致诚办公家具有限公司 | Headrest device of seat and seat |
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