CN114476090B - Pilot ejection protection arm limiting handrail and pilot ejection protection method - Google Patents
Pilot ejection protection arm limiting handrail and pilot ejection protection method Download PDFInfo
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- CN114476090B CN114476090B CN202111672773.0A CN202111672773A CN114476090B CN 114476090 B CN114476090 B CN 114476090B CN 202111672773 A CN202111672773 A CN 202111672773A CN 114476090 B CN114476090 B CN 114476090B
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- ejection
- connecting rod
- armrest
- pilot
- protection
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 49
- 230000001681 protective effect Effects 0.000 abstract description 6
- 230000006870 function Effects 0.000 abstract description 5
- 230000009993 protective function Effects 0.000 abstract description 2
- 210000000988 bone and bone Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 210000001364 upper extremity Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000245 forearm Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
- B64D25/00—Emergency apparatus or devices, not otherwise provided for
- B64D25/08—Ejecting or escaping means
- B64D25/10—Ejector seats
-
- 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
- B64D11/0644—Adjustable arm rests
-
- 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
- B64D11/0689—Arrangements of seats, or adaptations or details specially adapted for aircraft seats specially adapted for pilots
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Seats For Vehicles (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The application belongs to the field of aviation, and particularly relates to a pilot ejection protection arm limiting handrail and a pilot ejection protection method. According to the pilot ejection protection arm limiting handrail and the pilot ejection protection method, when passengers need to adjust the handrail to meet comfort requirements, the handrail shell can be rotated to a required angle through the unlocking angle adjusting mechanism, and the angle adjusting mechanism is locked, so that the handrail is fixed at the adjusted angle. When the passenger starts the seat ejection, the protective fan net is released through the ejection actuating mechanism to limit the arm of the passenger to extend outwards, and the comfort adjusting function of the normal riding working condition and the arm limiting protective function of the emergency ejection working condition are realized through different actuating modes under different working conditions.
Description
Technical Field
The application belongs to the field of aviation, and particularly relates to a pilot ejection protection arm limiting handrail and a pilot ejection protection method.
Background
In order to avoid the influence of overload and head-on airflow on the pilot during emergency ejection, the upper limb is whipped and injured, so that the upper limb of the pilot needs to be restrained and protected. In addition, for long endurance aircraft, the comfort requirements of the pilot during long endurance flight need to be considered, and thus long endurance comfort designs need to be made.
The existing catapulting seat arm limiting mechanism is only suitable for short-endurance aircraft and does not have a comfort function, so that the comfort and the catapulting safety of pilots are guaranteed simultaneously for long-endurance aircraft, and the comfort and the safety are required to be integrally designed.
It is therefore desirable to have a solution that overcomes or at least alleviates at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The purpose of the application is to provide a pilot ejection protection arm limiting handrail and a pilot ejection protection method, so as to solve at least one problem existing in the prior art.
The technical scheme of the application is as follows:
a first aspect of the present application provides a pilot ejection guard arm rest comprising:
the armrest shell is arranged on the seat armrest and is provided with a shell cover;
the protection fan net is arranged on the armrest shell;
the shell cover locking device comprises a shell cover clamp, a first sliding block, a first connecting rod and a first torsion spring, wherein the shell cover clamp is arranged on the shell cover, a through hole is formed in the shell cover clamp, the first sliding block is arranged on the first connecting rod, and one end of the first connecting rod passes through the through hole in the shell cover clamp and then is fixed through the first torsion spring;
the angle adjusting mechanism is arranged on the armrest shell and is used for unlocking and locking the armrest shell;
the ejection actuating mechanism comprises an ejection actuating part and a main body part, wherein,
the ejection actuating part comprises a first rotating shaft, a second connecting rod and a second torsion spring, one end of the second connecting rod is connected with the first rotating shaft, the middle part of the second connecting rod is connected with the other end of the first connecting rod, the middle part of the second connecting rod is also fixed through the second torsion spring, and the other end of the second connecting rod is connected with the protection fan net;
the high-pressure gas-fired boiler is characterized in that the main body part is provided with a high-pressure gas channel, the lower side of the inner wall surface of the gas channel is provided with a groove, the inside of the groove is provided with an outer sleeve, the upper side of the inner wall surface is provided with a limiting block, the inside of the gas channel is provided with a spring, a second sliding block and a third connecting rod, one section of the spring is fixed, the other end of the spring is connected with the second sliding block, the second sliding block is installed at one end of the third connecting rod, and the other end of the third connecting rod is connected with the middle part of the second connecting rod.
In at least one embodiment of the present application, the protection fan mesh includes a plurality of fan ribs, a plurality of one ends of the fan ribs are fixed through the second rotating shaft, and a high-elastic sector is arranged between two adjacent fan ribs.
In at least one embodiment of the present application, the high-elastic sector is woven from silk ribbon.
In at least one embodiment of the present application, a limiting block is disposed on the fan rib, so as to keep a certain angle between the adjacent fan ribs.
In at least one embodiment of the present application, a abduction damper is disposed on the second shaft.
A second aspect of the present application provides a pilot ejection protection method, based on the pilot ejection protection arm-rest described above, comprising:
when the passenger needs to adjust the armrest, the armrest shell is rotated to a preset angle through the unlocking angle adjusting mechanism, and the angle adjusting mechanism is locked, so that the armrest is fixed at the preset angle;
when the passenger starts the seat ejection, the ejection power source is input to the ejection actuating mechanism, the ejection actuating mechanism firstly unlocks the angle adjusting mechanism, rotates the armrest housing to the lower position, locks the angle adjusting mechanism, and then unlocks the housing cover locking device, so that the armrest housing is opened, the protection fan net is released, the protection fan net is full, and the arm of the passenger is limited to be outwards extended.
The invention has at least the following beneficial technical effects:
the pilot catapulting protection arm limiting handrail can provide riding comfort for passengers under normal riding conditions, and can realize upper limb protection constraint functions for passengers under emergency catapulting conditions.
Drawings
FIG. 1 is a schematic diagram of a cap lock for a pilot ejection guard arm rest according to one embodiment of the present application;
FIG. 2 is a first stage schematic diagram of an ejection actuation mechanism for a pilot ejection guard arm rest according to one embodiment of the present application;
FIG. 3 is a second stage schematic diagram of an ejection actuation mechanism of a pilot ejection guard arm rest according to one embodiment of the present application;
FIG. 4 is a schematic view of a protective fan mesh of a pilot ejection protective arm rest according to one embodiment of the present application;
FIG. 5 is a flow chart of a pilot ejection guard arm rest normal ride condition armrest angle adjustment according to one embodiment of the present application;
FIG. 6 is a flow chart of pilot ejection protection arm rest emergency ejection regime armrest actuation according to one embodiment of the present application.
Detailed Description
In order to make the purposes, technical solutions and advantages of the implementation of the present application more clear, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of the present application. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Embodiments of the present application are described in detail below with reference to the accompanying drawings.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present application.
The present application is described in further detail below with reference to fig. 1-6.
A first aspect of the present application provides a pilot ejection guard arm rest comprising: the device comprises an armrest shell, a protection fan net, a shell cover locking device, an angle adjusting mechanism and an ejection actuating mechanism.
Specifically, as shown in fig. 1 to 3, the armrest housing is provided on the seat armrest, the cover is provided on the armrest housing, and the protection fan mesh is provided on the armrest housing. The shell cover locking device comprises a shell cover clamp, a first sliding block, a first connecting rod and a first torsion spring, wherein the shell cover clamp is installed on a shell cover, a through hole is formed in the shell cover clamp, the first sliding block is arranged on the first connecting rod, and one end of the first connecting rod is fixed through the first torsion spring after passing through the through hole in the shell cover clamp. The angle adjusting mechanism is arranged on the armrest housing and used for unlocking and locking the armrest housing.
Further, the ejection actuating mechanism comprises an ejection actuating part and a main body part, wherein the ejection actuating part comprises a first rotating shaft, a second connecting rod and a second torsion spring, one end of the second connecting rod is connected with the first rotating shaft, the middle part of the second connecting rod is connected with the other end of the first connecting rod, the middle part of the second connecting rod is also fixed through the second torsion spring, and the other end of the second connecting rod is connected with the protection fan net; the main part is offered high-pressure gas passageway, and the inner wall surface downside of gas passageway is offered flutedly, and the inside outer sleeve that is provided with of recess, and the inner wall surface upside is provided with the stopper, and the inside of gas passageway is provided with spring, second slider and third connecting rod, and one section of spring is fixed, and the other end is connected with the second slider, and the one end at the third connecting rod is installed to the second slider, and the other end and the middle part of second connecting rod of third connecting rod are connected.
The pilot catapulting protection arm limiting handrail can be opened in a unilateral unlocking mode, and a shell cover locking device, an angle adjusting mechanism and a protection fan net are arranged in the handrail shell.
The principle of the cover locking device is shown in figure 1. The right sliding block moves rightwards under the action of the tension spring to clamp the shell cover clamp of the armrest shell, so that the shell cover of the armrest shell is locked; when the ejection actuating mechanism acts, the rotating shaft of the protection fan net overcomes the tension spring and rotates upwards, and meanwhile, the sliding block is driven to move left, so that the shell cover of the armrest shell is unlocked. The shell cover locking device has two unlocking modes, namely one is unlocked through the armrest shell under the normal riding condition, and the other is unlocked through the ejection actuating mechanism under the emergency ejection condition.
The angle adjusting mechanism is used for adjusting the angle of the armrest, and the angle adjusting range of the armrest is about horizontal to equal to or slightly larger than the angle of the backrest. The angle adjusting mechanism is a common mechanism for adjusting the armrest of the chair, and not described in detail herein, it should be noted that the angle adjusting mechanism is an armrest housing that is unlocked and locked.
The principle diagram of the ejection actuator is shown in fig. 2-3. The ejection actuating mechanism can be divided into two stages in the working process, wherein the first stage enables the armrests to be stretched outwards for preventing, the second stage enables the armrests to be retracted, the shell cover on the armrests shell is opened, and the protective fan net is released. In the first stage, as shown in fig. 2, the ejection seat adopts high-pressure gas as ejection power, after the gas enters the cylinder, the slide block is pushed to move right (the angle adjusting mechanism is unlocked and the armrest is stretched outwards), the slide block drives the connecting rod (the armrest) to descend, when the slide block is lowered to a fixed position, as shown in fig. 3, the gas changes a passage, the slide block is pushed to move left (the angle adjusting mechanism is locked and the armrest is axially retracted), the shell cover locking device is unlocked, the connecting rod is pulled to rotate upwards (the protection fan mesh rotating shaft is actuated, and the fan bones are sequentially rotated upwards to open the high-elastic fan). The gas remains unchanged in the existing direction due to the ratchet action shown in the figure. The ejection actuating mechanism is a transmission mechanism which converts translation into rotation, and is driven by ejection power under an emergency ejection working condition. Under the ejection power, the ejection actuating mechanism pushes the armrests to extend outwards for a certain distance along the side direction of the seat (the distance between the two armrests after extending outwards is longer than 2 times of the human forearm), then the armrests rotate downwards to a horizontal angle, and the armrests extend to retract sideways to lock the positions of the armrests. After the armrest is locked, the cover locking device is unlocked, the cover is opened, and the protective fan net is unfolded from the armrest shell.
The pilot of this application launches protection limit arm handrail, as shown in fig. 4, protection fan net includes many fan bones, and the one end of many fan bones is fixed through the second pivot, and the pivot can drive the fan bone and rotate upwards in proper order, is provided with the high-elastic sector between two adjacent fan bones, and the high-elastic sector is woven by brocade silk ribbon, can effectively retrain passenger's arm. In this embodiment, a limiting block is disposed on the fan frame, so as to maintain a certain angle between the adjacent fan frames. Advantageously, in this embodiment, the second shaft is provided with an abduction damper, and the abduction damper is composed of a spring and a bump, so that when the fan frame is turned upwards, the upward track of the fan frame can be an abduction arc line, and the fan frame is prevented from rubbing the elbows of the passengers. The protection fan net rotates around the shaft to open under the action of the ejection actuating mechanism, wherein one side of the fan net is fixedly connected to the bottom of the handrail.
A second aspect of the present application provides a pilot ejection protection method, based on the pilot ejection protection arm-rest as above, comprising:
when the passenger needs to adjust the armrest, the armrest shell is rotated to a preset angle through the unlocking angle adjusting mechanism, and the angle adjusting mechanism is locked, so that the armrest is fixed at the preset angle;
when the passenger starts the seat ejection, the ejection power source is input to the ejection actuating mechanism, the ejection actuating mechanism firstly unlocks the angle adjusting mechanism, rotates the armrest housing to the lower position, locks the angle adjusting mechanism, and then unlocks the housing cover locking device, so that the armrest housing is opened, the protection fan net is released, the protection fan net is full, and the arm of the passenger is limited to be outwards extended.
According to the pilot ejection protection arm limiting handrail and the pilot ejection protection method, when passengers need to adjust the handrail to meet comfort requirements, the handrail shell can be rotated to a required angle through the unlocking angle adjusting mechanism, and the angle adjusting mechanism is locked, so that the handrail is fixed at the adjusted angle. When the passenger starts the seat ejection, the protective fan net is released through the ejection actuating mechanism to limit the arm of the passenger to extend outwards, and the comfort adjusting function of the normal riding working condition and the arm limiting protective function of the emergency ejection working condition are realized through different actuating modes under different working conditions.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. A pilot ejection protection arm rest, comprising:
the armrest shell is arranged on the seat armrest and is provided with a shell cover;
the protection fan net is arranged on the armrest shell;
the shell cover locking device comprises a shell cover clamp, a first sliding block, a first connecting rod and a first torsion spring, wherein the shell cover clamp is arranged on the shell cover, a through hole is formed in the shell cover clamp, the first sliding block is arranged on the first connecting rod, and one end of the first connecting rod passes through the through hole in the shell cover clamp and then is fixed through the first torsion spring;
the angle adjusting mechanism is arranged on the armrest shell and is used for unlocking and locking the armrest shell;
the ejection actuating mechanism comprises an ejection actuating part and a main body part, wherein,
the ejection actuating part comprises a first rotating shaft, a second connecting rod and a second torsion spring, one end of the second connecting rod is connected with the first rotating shaft, the middle part of the second connecting rod is connected with the other end of the first connecting rod, the middle part of the second connecting rod is also fixed through the second torsion spring, and the other end of the second connecting rod is connected with the protection fan net;
the high-pressure gas-fired boiler is characterized in that the main body part is provided with a high-pressure gas channel, the lower side of the inner wall surface of the gas channel is provided with a groove, the inside of the groove is provided with an outer sleeve, the upper side of the inner wall surface is provided with a limiting block, the inside of the gas channel is provided with a spring, a second sliding block and a third connecting rod, one section of the spring is fixed, the other end of the spring is connected with the second sliding block, the second sliding block is installed at one end of the third connecting rod, and the other end of the third connecting rod is connected with the middle part of the second connecting rod.
2. The pilot ejection protection arm limiting handrail of claim 1, wherein the protection fan net comprises a plurality of fan ribs, one ends of the fan ribs are fixed through a second rotating shaft, and a high-elastic fan surface is arranged between two adjacent fan ribs.
3. The pilot ejection guard arm rest of claim 2, wherein the high-elastic sector is braided from a silk ribbon.
4. A pilot ejection protection arm rest according to claim 3, wherein a stopper is provided on the rib for maintaining a certain angle between adjacent ribs.
5. The pilot ejection protection arm rest of claim 4, wherein a abduction damper is provided on the second shaft.
6. A pilot ejection protection method based on the pilot ejection protection arm rest of any one of claims 1 to 5, comprising:
when the passenger needs to adjust the armrest, the armrest shell is rotated to a preset angle through the unlocking angle adjusting mechanism, and the angle adjusting mechanism is locked, so that the armrest is fixed at the preset angle;
when the passenger starts the seat ejection, the ejection power source is input to the ejection actuating mechanism, the ejection actuating mechanism firstly unlocks the angle adjusting mechanism, rotates the armrest housing to the lower position, locks the angle adjusting mechanism, and then unlocks the housing cover locking device, so that the armrest housing is opened, the protection fan net is released, the protection fan net is full, and the arm of the passenger is limited to be outwards extended.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111672773.0A CN114476090B (en) | 2021-12-31 | 2021-12-31 | Pilot ejection protection arm limiting handrail and pilot ejection protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111672773.0A CN114476090B (en) | 2021-12-31 | 2021-12-31 | Pilot ejection protection arm limiting handrail and pilot ejection protection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114476090A CN114476090A (en) | 2022-05-13 |
| CN114476090B true CN114476090B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111672773.0A Active CN114476090B (en) | 2021-12-31 | 2021-12-31 | Pilot ejection protection arm limiting handrail and pilot ejection protection method |
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| Country | Link |
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| CN (1) | CN114476090B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3630472A (en) * | 1969-07-07 | 1971-12-28 | Saab Scania Ab | Protection device for occupant of aircraft ejection seat |
| CN107839890A (en) * | 2017-11-23 | 2018-03-27 | 航宇救生装备有限公司 | A kind of aero seat armrest system |
-
2021
- 2021-12-31 CN CN202111672773.0A patent/CN114476090B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3630472A (en) * | 1969-07-07 | 1971-12-28 | Saab Scania Ab | Protection device for occupant of aircraft ejection seat |
| CN107839890A (en) * | 2017-11-23 | 2018-03-27 | 航宇救生装备有限公司 | A kind of aero seat armrest system |
Non-Patent Citations (1)
| Title |
|---|
| 黄加阳 ; 邱义芬 ; 颜吟雪 ; 姜南 ; .弹射座椅的静态舒适性仿真.北京航空航天大学学报.2008,(第10期),55-58. * |
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| CN114476090A (en) | 2022-05-13 |
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