CN110606207A - Multi-protection integrated helicopter crash-resistant seat - Google Patents
Multi-protection integrated helicopter crash-resistant seat Download PDFInfo
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- CN110606207A CN110606207A CN201910961311.7A CN201910961311A CN110606207A CN 110606207 A CN110606207 A CN 110606207A CN 201910961311 A CN201910961311 A CN 201910961311A CN 110606207 A CN110606207 A CN 110606207A
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- shoulder strap
- multifunctional
- connecting rod
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- 238000013016 damping Methods 0.000 claims abstract description 37
- 230000004224 protection Effects 0.000 claims abstract description 27
- 238000005303 weighing Methods 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims description 33
- 238000007906 compression Methods 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims 1
- 210000002414 leg Anatomy 0.000 description 23
- 238000000034 method Methods 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000010354 integration Effects 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 239000006096 absorbing agent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 230000035899 viability Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 244000208734 Pisonia aculeata Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000003721 gunpowder Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS 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
- B64D11/0619—Arrangements of seats, or adaptations or details specially adapted for aircraft seats with energy absorbing means specially adapted for mitigating impact loads for passenger seats, e.g. at a crash
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS 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
- B64D11/062—Belts or other passenger restraint means for passenger seats
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS 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
- B64D11/0627—Seats combined with storage means
- B64D11/0629—Seats combined with storage means the storage means being specially adapted for emergency equipment
- B64D11/0633—Seats combined with storage means the storage means being specially adapted for emergency equipment for devices other than life vests and intended for external use, e.g. parachutes or life rafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Abstract
The invention discloses a multi-protection integrated helicopter anti-crash seat which comprises a main framework, a weighing sensor, a magnetorheological damping system, an upper trunk forced tensioning and quick release system, a seat basin, a multifunctional vest and a controller. The emergency escape device has excellent crash resistance performance, can provide optimal protection for all percentile passengers, enables a pilot to keep the optimal posture, prevents secondary collision, has a quick release function, can realize one-key unlocking, and enables the pilot to meet the life-saving requirements of various complex environments after the pilot crashes.
Description
Technical Field
The invention relates to the technical field of aviation equipment, in particular to a crash-resistant seat of a helicopter with multiple protection integration.
Background
At present, a fixed load energy absorption technology is adopted in a crash-resistant seat of a domestic helicopter, but the fixed load energy absorption technology can only provide optimal protection for a pilot with specific weight (generally, the weight of the 50 th percentile pilot is taken in order to exert the maximum efficiency in the weight range of the pilot), and the protection for the pilot which is too light or too heavy is not effective; for a heavy pilot, moving downward at less than the expected deceleration may result in insufficient impact travel, resulting in a secondary impact; while a lightweight pilot may not fully utilize the available impact stroke, may be struck with a higher deceleration than expected, beyond human tolerance. Therefore, in order to ensure that the energy absorption device provides optimal overload protection for all pilots when the helicopter crashes and more reasonably utilize the limited space below the seat, a self-adaptive stepless variable load energy absorption technology is adopted.
Due to the demand of modern battlefields, helicopters are developed in the directions of high speed, high maneuverability and high stealth. At present, a helicopter crash-resistant seat generally adopts a five-point safety belt with an inertia locking function to control the accidental beating action of a pilot, although the constraint mode can effectively protect the pilot under normal flight overload, the constraint mode has the defects of large woven belt loosening amount and certain response delay of locking of a shoulder belt inertia winding drum, and the helicopter crash-resistant seat is not effective for protecting the pilot under the crash working condition of high overload. The upper trunk forced tensioning technology is adopted, so that the pilot can forcibly pull back the upper trunk in any posture, the back of the pilot is kept to be tightly attached to the backrest, the pilot is ensured to be in the optimal posture, and the viability of the pilot is improved.
The battlefield environment is complex and changeable in the future, the task is often executed in complex environments such as enemy areas, deserts with rare people, jungles or wide water areas, and the like, and the helicopter crash-resistant seat is also required to provide more comprehensive protection when the helicopter crash-resistant seat meets the requirements of all-region and all-environment battles. From the perspective of improving the viability of the pilot, it is not enough to only consider the life safety of the pilot under the crash condition, and also consider the survival and help-seeking needs of the pilot after landing (water).
Disclosure of Invention
The invention aims to solve the technical problem that aiming at the defects in the prior art, the invention provides the crash-resistant seat of the helicopter with multiple protection integration, which has excellent crash-resistant protection performance, can provide optimal protection for all percentile passengers, enables the pilot to keep the optimal posture, prevents secondary collision, has a quick release function, can realize one-key unlocking, and enables the pilot to meet the lifesaving requirements of various complex environments after the crash.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides an integrated helicopter anti-crash seat of multiple protection, including the main frame, weighing sensor, magnetorheological damping system, go up the truck and force taut and disengage the system fast, seat chair basin, multi-functional undershirt and controller, seat chair basin is along vertical direction and main frame sliding connection, magnetorheological damping system sets firmly on seat chair basin, magnetorheological damping system passes through weighing sensor and is connected with the main frame, it forces taut and disengage the system fast and set up on seat chair basin to go up the truck, multi-functional undershirt forces taut and disengage the system fast and be connected with seat chair basin through last truck, the controller is connected with weighing sensor and magnetorheological damping system respectively.
According to the technical scheme, the magnetorheological damping system comprises a high-strength woven belt, a damper and a connecting shaft, one end of the high-strength woven belt is wound on the connecting shaft of the damper, the other end of the high-strength woven belt is connected with a weighing sensor, and the weighing sensor is fixedly arranged on the main framework.
According to the technical scheme, the damper is a magneto-rheological damper.
According to the technical scheme, the forced tensioning and quick releasing system for the upper trunk comprises a quick releasing handle, a lower connecting rod, a lower connecting block, a converting rod, a multifunctional converting block, a pull rod, a lower locking rod, a compression spring, a steel cable, an upper converting block, an upper connecting rod, an upper converting block, an upper locking rod, a shoulder strap tensioning belt and a shoulder strap tensioning mechanism, wherein the lower connecting rod is arranged below the upper connecting rod;
the upper rotating connecting block is connected with the upper locking rod, one end of the shoulder strap tensioning belt is connected with the shoulder strap tensioning mechanism, the other end of the shoulder strap tensioning belt is inserted into a lock hole of the upper locking rod, the lower rotating connecting block is sleeved on the lower connecting rod, the lower rotating connecting block is connected with the multifunctional rotating connecting block through the converting rod, the multifunctional rotating connecting block is connected with the lower locking rod through the pull rod, the shoulder strap tensioning belt is connected with the upper end of the multifunctional vest, the lower locking rod is connected with the lower end of the multifunctional vest, the lower locking rod is sleeved with the compression spring, and the lower locking rod can automatically reset through the compression spring.
According to the technical scheme, the number of the pull rods and the lower lock rods is two, one end of each of the two pull rods is connected with the two sides of the corresponding multifunctional adapter block, the two lower lock rods are connected with the other ends of the two pull rods, and the two sides of the lower end of the multifunctional vest are connected with the two lower lock rods.
According to the technical scheme, the number of the upper transfer blocks and the upper lock rods is two, the two upper transfer blocks are respectively sleeved at two ends of the upper connecting rod, the two upper lock rods are respectively connected with the two upper transfer blocks, and two sides of the upper end of the multifunctional vest are respectively connected with the two upper lock rods.
According to the technical scheme, the multifunctional switching block is arranged at the back of the seat through the rotating shaft, the shoulder belt tensioning mechanism is fixedly arranged on the seat, and the upper connecting rod and the lower connecting rod are respectively sleeved at the upper end and the lower end of the seat.
According to the technical scheme, the shoulder strap tensioning mechanism is provided with the inertia winding drum, and is integrated with the quick release mechanism, so that the volume is saved, the weight is reduced, and the shoulder strap tensioning belt is in a tensioned state and is provided with the gas exciting hole.
According to the technical scheme, the multifunctional vest comprises a vest main body, the upper end of the vest main body is connected with two shoulder strap tightening belts, an upper strap lock catch and a tightening belt are connected between the two shoulder strap tightening belts, the lower end of the vest main body is connected with two leg straps, leg strap guide rings are arranged on two sides of the vest main body, the two leg straps respectively penetrate through the leg strap guide rings on the corresponding sides, and a leg strap lock catch and a tightening belt are connected between the two leg strap guide rings.
According to the technical scheme, the seat cushion is arranged on the seat basin, the back cushion is arranged on the backrest of the seat basin, the lifeboat is embedded in the back cushion of the seat, and the main framework is used for being connected and fixed with the engine room.
The invention has the following beneficial effects:
1. the weight of the movable part of the seat and the overload in the falling and collision process are detected in real time through the weighing sensor (namely, the weight of the movable part of the seat is automatically detected in a normal flight state and the overload is detected in the falling process), the magnetorheological damping system carries out self-adaptive adjustment on the damping force according to the detection signal of the weighing sensor and is used as an electrodeless variable load energy absorber, the damping force can be changed before and during the falling collision of the helicopter, the helicopter has excellent protection performance against falling, can provide optimal protection for all percentile passengers, eliminates the influence of other factors such as the equipped weight and sitting posture of equipment on the damping force, ensures that an upper trunk forced tensioning and quick release system can keep the pilot in the optimal posture during the falling collision, prevents secondary collision and has the function of quick release, one-key unlocking can be realized, so that the pilot can meet the lifesaving requirements of various complex environments after falling and colliding.
2. The integration of the lifesaving equipment and the seat can greatly reduce the weight of the seat. The lifeboat is used as a part of the backrest and is not placed below the seat chair basin, so that the impact stroke is released.
Drawings
FIG. 1 is a forward axial view of a multiple protection integrated helicopter crash resistant seat in an embodiment of the present invention;
FIG. 2 is a reverse axis view of a multiple protection integrated helicopter crash resistant seat in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a magnetorheological damping system in an embodiment of the invention;
FIG. 4 is a schematic structural view of an upper torso positive take-up and quick release system in an embodiment of the present invention;
FIG. 5 is a schematic view of the construction of the multi-functional vest of the embodiment of the invention;
FIG. 6 is a schematic view of the multi-functional vest of the present invention attached to an upper torso positive take-up and quick release system;
in the figure, 1 is a main framework and 2 is a weighing sensor;
3-a magnetorheological damping system 301-a high-strength woven belt 302-a damper 303-a connecting shaft 304-an input current line;
4-upper torso forced tensioning and quick release system, 401-quick release handle, 402-lower connecting rod, 403-lower connecting block, 404-transfer rod, 405-multifunctional transfer block, 406-pull rod, 407-lower locking rod, 408-compression spring, 409-steel cable, 410-upper transfer block, 411-upper connecting rod, 412-upper transfer block, 413-upper locking rod, 414-shoulder strap tensioning belt, 415-shoulder strap tensioning mechanism, 416-gas firing hole;
5-a chair basin, 6-a multifunctional vest, 601-a vest main body, 602-a pulley, 603-a leg strap, 604-a leg strap guide ring, 605-an upper shoulder strap lock catch and a tightening strap, 606-a leg strap lock catch and a tightening strap, 607-a shoulder strap connecting piece, 608-a shoulder strap tightening strap, 609-a waist strap and a waist strap tightening strap;
7-single lifeboat, 8-back cushion and 9-cushion.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 6, the helicopter crash-resistant seat with multiple protection integration in one embodiment provided by the invention comprises a main framework 1, a weighing sensor 2, a magnetorheological damping system 3, an upper torso forced tensioning and quick release system 4, a seat basin 5, a multifunctional vest 6, a controller and the like, wherein the main framework 1 is used for being connected and fixed with an engine room, the seat basin 5 is connected with the main framework 1 in a sliding manner along the vertical direction, the magnetorheological damping system 3 is fixedly arranged on the seat basin 5, the magnetorheological damping system 3 is connected with a cross brace of the main framework 1 through the weighing sensor 2, the upper torso forced tensioning and quick release system 4 is arranged on the seat basin 5, the multifunctional vest 6 is connected with the seat basin 5 through the upper torso forced tensioning and quick release system 4, and the controller is respectively connected with the weighing sensor 2 and the magnetorheological damping system 3.
Furthermore, the seat has an excellent anti-crash function, can adjust the passengers to the optimal anti-crash posture in the crash process, simultaneously has a single lifeboat 7, can realize sea life saving, can automatically obtain the real-time weight of the passengers and equipment by the weighing sensor 2, and is used as an input signal of the stepless variable load energy absorber, so that the magnitude of the damping force is adaptively adjusted, and the influence of other factors such as the equipment weight and the sitting posture on the damping force is eliminated.
Further, magnetorheological damping system 3 includes high strength meshbelt 301, attenuator 302 and connecting axle 303, and the one end of high strength meshbelt 301 twines on the connecting axle 303 of attenuator 302, and the other end is connected with weighing sensor 2, and weighing sensor 2 sets firmly on the stull of main frame 1.
Further, the damper 302 is a magnetorheological damper 302; the damper 302 is connected to the controller via an input current line 304.
Further, the magnetorheological damper 3 is used as an electrodeless variable load energy absorber, the damping force of the damper 302 can be changed by changing the input current of the magnetorheological damper, and the magnetorheological damper is applied to the crash-resistant seat, so that the optimal protection can be provided for all the percentile passengers. Meanwhile, the magneto-rheological damper has quick response and can change the damping force in a self-adaptive manner before and during the crash of the helicopter.
Further, the upper torso forcible tightening and quick release system 4 includes a quick release handle 401, a lower connecting rod 402, a lower connecting block 403, a switching rod 404, a multifunctional switching block 405, a pull rod 406, a lower locking rod 407, a compression spring 408, a steel cable 409, an upper switching block 410, an upper connecting rod 411, an upper switching block 412, an upper locking rod 413, a shoulder strap tensioning belt 414, a shoulder strap tensioning mechanism 415 and a gas excitation hole 416, the lower connecting rod 402 is disposed below the upper connecting rod 411, the quick release handle 401 is connected with one end of the lower connecting rod 402, the other end of the lower connecting rod 402 is connected with the lower end of the steel cable 409, the upper end of the steel cable 409 is connected with the upper switching block 410, and the upper switching block 410 is connected with the upper connecting rod 411;
the upper connecting block 412 is connected with an upper lock rod 413, one end of a shoulder strap tensioning belt 414 is connected with a shoulder strap tensioning mechanism 415, the other end of the shoulder strap tensioning belt 414 is inserted into a keyhole of the upper lock rod 413, the lower connecting block 403 is sleeved on the lower connecting rod 402, the lower connecting block 403 is connected with a multifunctional connecting block 405 through a conversion rod 404, the multifunctional connecting block 405 is connected with a lower lock rod 407 through a pull rod 406, the shoulder strap tensioning belt 414 is connected with the upper end of the multifunctional vest 6, the lower lock rod 407 is connected with the lower end of the multifunctional vest 6, a compression spring is sleeved on the lower lock rod, the lower lock rod can automatically reset through the compression spring 408, when the quick release handle 401 is not operated, the compression spring 408 can restore all mechanisms to original states, and the compression spring is connected with a seat basin.
Further, the quick release handle 401 drives the lower connecting rod 402 to rotate, the lower connecting rod 402 rotates to drive the multifunctional adapter 405 to rotate through the lower adapter 403, and further drives the lower lock body to unlock through the pull rod 406, and the waistband tightening belt 609 are released; the lower connecting rod 402 rotates and simultaneously drives the steel cable 409 to be pulled down, the steel cable 409 is pulled down and drives the upper connecting rod 411 to rotate through the upper conversion block 410, the upper connecting rod 411 rotates and drives the upper conversion block 412 to rotate, and therefore the upper locking rod 413 is driven to move downwards, and the shoulder strap tensioning belt 414 is released.
Further, the upper conversion block 410 is sleeved on the upper connection rod 411, a fixed pulley or a sleeve hole is fixedly arranged on one side of the upper conversion block 410, the upper end of the steel cable 409 passes around the fixed pulley or through the sleeve hole and the upper conversion block 410, and the upper connection rod 411 is driven to rotate by the upper conversion block 410.
Furthermore, the number of the pull rods 406 and the number of the upper lock rods 413 are two, one end of each of the two pull rods 406 is connected with two sides of the multifunctional adapter 405, the two lower lock rods 407 are connected with the other end of each of the two pull rods 406, and two sides of the lower end of the multifunctional vest 6 are connected with the two lower lock rods 407.
Furthermore, the number of the upper transfer blocks 412 and the number of the upper lock rods 413 are two, the two upper transfer blocks 412 are respectively sleeved at two ends of the upper connecting rod 411, the two upper lock rods 413 are respectively connected with the two upper transfer blocks 412, and two sides of the upper end of the multifunctional vest 6 are respectively connected with the two upper lock rods 413.
Further, the multifunctional adapter 405 is disposed at the back of the seat pan through a rotating shaft, the shoulder strap tensioning mechanism 415 is fixedly disposed on the seat, and the upper connecting rod 411 and the lower connecting rod 402 are respectively sleeved at the upper end and the lower end of the seat pan.
Further, the upper connecting rod 411 and the lower connecting rod 402 are both transversely penetrated and sleeved at the upper end and the lower end of the seat basin.
Furthermore, the shoulder strap tensioning mechanism 415 is provided with an inertia reel and a gas excitation hole 416, and is integrated with a quick release mechanism, so that the volume is saved, the weight is reduced, the shoulder strap tensioning belt 414 is in a natural tensioning state, and the shoulder strap tensioning belt 414 can be forcibly retracted by exciting the gas excitation hole 416.
Further, the multifunctional vest 6 comprises a vest main body 601, two shoulder strap tightening bands 608 are connected to the upper end of the vest main body 601, an upper strap locking buckle and a tightening band 605 are connected between the two shoulder strap tightening bands 608, two leg straps are connected to the lower end of the vest main body 601, leg strap guide rings 604 are arranged on two sides of the vest main body 601, the two leg straps pass through the leg strap guide rings 604 on the corresponding sides around thighs respectively, and a leg strap locking buckle and a tightening band 606 are connected between the two leg straps.
Furthermore, the vest main body 601 is connected with a shoulder strap connector 607, a pulley 602 is arranged on the shoulder strap connector 607, one end of the shoulder strap tensioning belt 414 is connected with the shoulder strap tensioning mechanism 415, and the other end of the shoulder strap tensioning belt 414 is inserted into the keyhole of the upper lock lever 413 by passing through the pulley 602; the multifunctional vest 6 replaces a five-point safety belt, so that the multifunctional vest 6 can be conveniently and quickly detached, and a passenger can wear the multifunctional vest 6 to normally escape.
Furthermore, the forced tensioning mechanism for the upper trunk can keep the pilot in the optimal posture in the process of falling and colliding, so that secondary collision is prevented. The gunpowder-driven shoulder belt forced tensioning mechanism is adopted to ensure that the forced pull-back time of the upper trunk meets the requirement; the triggering mode of the shoulder strap tensioning mechanism 415 can sense the triggering of the emergency landing of the helicopter through an overload starting device.
By operating the quick release handle 401, the quick release function is provided, and one-key unlocking can be realized.
Furthermore, a seat cushion 9 is arranged on the seat basin 5 of the seat, a back cushion 8 is arranged on the backrest of the seat, and a single lifeboat 7 is embedded in the back cushion 8 of the seat; the single lifeboat 7 is embedded into the seat back cushion 8, and the lifeboat is used as a part of the backrest and is not placed below the seat chair basin 5, so that the impact stroke is released, and the requirements of survival and help seeking of passengers on water are met.
The working principle of the invention is as follows:
as shown in fig. 1, the helicopter crash-resistant seat integrated with multiple protections mainly comprises a main framework 1, a weighing sensor 2, a magnetorheological damping system 3, an upper trunk forced tensioning and rapid releasing system 4, a seat basin 5, a multifunctional vest 6, a single lifeboat 7, a back cushion 8 and a cushion 9. The main framework 1 is a seat main structure and is connected with a helicopter cabin. One end of the weighing sensor 2 is connected to the cross brace of the main framework 1, the other end of the weighing sensor is connected with the high-strength woven belt 301 on the magnetorheological damper 3, the upper trunk forced tensioning mechanism 4 is fixed on the seat basin 5, and the single lifeboat 7 is positioned between the back cushion 8 and the seat basin 5 after being folded. The stress path is as follows: overload is transmitted to weighing sensor 2, magnetorheological damper 3, chair basin 5 from 1 horizontal pole of main frame in proper order. Wherein, the magneto-rheological damper 3 is a rotary damper magneto-rheological coil. In the process of falling and bumping, the upper trunk forced tensioning mechanism 4, the seat basin 5, the multifunctional vest 6, the single lifeboat 7, the back cushion 8 and the seat cushion 9 can freely slide up and down along the main framework 1, the magnetorheological damper 3 rotates, and the high-strength mesh belt 301 rotates and extends.
As shown in fig. 1, during normal flight, the upper trunk forced tension mechanism 4 provides the pilot with necessary restraint to prevent beating and collision of helicopter structural members when the helicopter is bumpy or has deceleration overload and maneuvering flight; when the emergency landing is carried out, the magnetorheological damper 3 can attenuate the load transmitted to the body of a pilot, the damage of the load to the pilot is reduced to the maximum extent, and the upper trunk forced tensioning mechanism 4 and the multifunctional vest 6 can reliably restrain the pilot. After the helicopter is stopped stably, a pilot pulls the quick release handle 401 to quickly release the connection between the multifunctional vest 6 and the upper trunk forced tension mechanism 4 and the seat pan 5, so that the helicopter can be quickly withdrawn. In water areas and field environments, a single lifeboat 7 and the like can be used for striving for rescue time, and the survival rate is improved. To sum up, this anti crash seat has multiple safeguard function, can be fit for the complex environment, accomplishes multiple task system.
As shown in fig. 2, the magnetorheological damping system 3 mainly comprises a high-strength webbing 301, a damper 302, a connecting shaft 303 and an input current wire 304. The damper 302 is a rotary damper, and contains magnetorheological fluid, and the damping torque is increased along with the increase of the introduced internal current. The connecting shaft 303 connects the left and right dampers 302 together, and the high-strength webbing 301 is wound around the connecting shaft 303 to convert the rotational motion into the linear motion. During a crash of the helicopter, the amount of outward leakage of the webbing 301 increases, i.e. the number of windings of the webbing 301 on the connecting shaft 303 decreases. The current in the input current line 304 has different magnitudes corresponding to the magnitude of the damping force, so the magneto-rheological damper is an electrodeless variable load energy absorber. In addition, the magneto-rheological damper has the capability of quick response, the damping force is only 8ms from the input of current to the stable damping force, the whole process from the beginning of the crash working condition to the stabilization of the damping force can be completed within 10 ms-20 ms by considering other influence factors such as control strategies, line transmission and the like, and the response time of the helicopter seat to the crash is 50 ms-100 ms, so the damping force can be adjusted for more than 2 times in the crash process.
As shown in fig. 3, the upper torso forcible tightening and quick release system 4 is mainly composed of a quick release handle 401, a lower connecting rod 402, a lower connecting block 403, a switching lever 404, a multifunctional switching block 405, a pull rod 406, a lower locking rod 407, a compression spring 408, a steel cable 409, an upper switching block 410, an upper connecting rod 411, an upper connecting block 412, an upper locking rod 413, a shoulder strap tightening belt 414, a shoulder strap tightening mechanism 415, and a gas firing hole 416. In normal use, the shoulder strap 414 is inserted into the keyhole of the upper lock lever 413, and the inertia reel is included in the shoulder strap tensioning mechanism 415, so that the shoulder strap 414 is in a natural tension state. When the belt is released in an emergency, the quick release handle 401 needs to be pulled upwards to drive the lower connecting rod 402 to rotate clockwise, and the lower connecting rod 404 moves downwards through the action of the lower connecting block 403, so that the multifunctional connecting block 405 is driven to rotate anticlockwise, the pull rod 406 is pulled towards the center, and finally the lower locking rod 407 moves towards the center to unlock the belt. At the same time, when the lower link 402 rotates clockwise, the cable 409 is pulled, the upper switch block 410 and the upper link 411 rotate counterclockwise, and the upper lock lever 413 is moved downward by the upper lock lever 413, thereby releasing the shoulder strap tension band 414. A compression spring 408 is located on the lower lock lever 407 and when the handle is not operated, the compression spring returns all the mechanisms to their original state. When the quick release handle 401 is pulled upward, the lower lock lever 407 and the upper lock lever 413 move simultaneously and unlock simultaneously, and when the quick release handle 401 is released, the lower lock lever 407 and the upper lock lever 413 lock simultaneously. The gas exciting hole 416 can be connected with a gas pipeline, when the falling collision occurs, the throwing device excites a gas bomb to generate gas, and after the gas reaches the gas exciting hole 416, the shoulder strap tensioning mechanism 415 is forcibly excited.
As shown in fig. 4, the multi-functional vest 6 is mainly composed of a vest main body 601, pulleys 602, leg bands 603, leg band guide rings 604, upper harness buckles and tighteners 605, leg band buckles and tighteners 606, shoulder strap connectors 607, shoulder strap tighteners 608, and waist strap tighteners 609. The pilot wears the procedure as follows, the wearer first passes the leg strap 603 over the leg, then passes the leg strap 603 through the leg strap guide loop 604, locks the leg strap latch and tightener 606 and tightens its tightening strap; then, the upper harness lock catch in the upper harness lock catch and tightening belt 605 is locked and the tightening belt is tightened; finally, the shoulder strap tightening band 608 is tightened to complete the wearing, and the releasing step is reversed. In connection with the seat system as shown in fig. 5, the shoulder strap tensioning belt 414 is inserted around the pulley 602 into the upper lock bar 413 and the lap belt and lap belt tensioning belt 609 is inserted into the lower lock bar 407. When the quick release handle 401 is pulled upwards, the multifunctional vest 6 can be completely released from the seat, so that the function of quick escape is realized.
In summary, the present invention is directed to overcome the above-mentioned shortcomings of the background art, and to provide a crash-resistant helicopter seat with multiple protection integration. The seat is provided with a self-adaptive energy absorption device, so that the self-adaptive adjustment of energy absorption working load can be realized according to the change of the weight gravity center of a human seat system, and all the percentile passengers can be protected optimally. Meanwhile, the seat and the individual protective equipment are integrated and are provided with a shoulder strap forced tensioning mechanism, so that the viability of a pilot under the working condition of falling and collision is improved. Through the upper trunk tensioning mechanism, the back of a pilot is kept to be tightly attached to the backrest in the falling and collision process, and the optimal posture is maintained. Through the integration of the lifesaving equipment and the seat, the lifesaving requirement of various complex environments can be met after the pilot is crashed; compared with the traditional energy absorption device based on the material plastic deformation technology, the self-adaptive energy absorption device has the advantage that the instantaneous dynamic response of the energy absorption working load in the falling and collision process can be realized. The magnetorheological damper has the advantages of continuously adjustable damping force, quick response (millisecond level), high failure safety, low energy consumption power and the like, and can be used as an electrodeless variable load energy absorber for a crash-resistant seat of a helicopter. The weighing sensor 2 is arranged at the back of the seat, the weight of a human body and personal equipment can be monitored in real time, and the damping force is adjusted through a certain control algorithm, so that self-adaptive stepless load change and energy absorption are realized, all percentile passengers can be optimally protected, and the damping force can be adaptively changed before and during the falling collision process of the helicopter; the shoulder strap forced tensioning mechanism is mainly based on the mature technology of the ejection seat, adopts the shoulder strap forced tensioning mechanism driven by gunpowder and ensures that the forced pull-back time of the upper trunk meets the requirement; the triggering mode of the shoulder strap tensioning mechanism 415 is that the triggering of helicopter emergency landing is sensed through an overload starting device; the seat adopts the technology of integrating the restraint device with the multifunctional life vest and the technology of integrating the seat back cushion with the single lifeboat 7, so that the integrated design of the seat and the individual protective equipment is realized. The weight of the seat can be greatly reduced, and meanwhile, the pilot can meet the lifesaving requirements of various complex environments after falling and colliding.
The above is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereby, and therefore, the present invention is not limited by the scope of the claims.
Claims (9)
1. The utility model provides an integrated helicopter anti-crash seat of multiple protection, a serial communication port, including the main frame, weighing sensor, magnetorheological damping system, go up the truck and force taut and quick release system, seat chair basin, multi-functional undershirt and controller, seat chair basin is along vertical direction and main frame sliding connection, magnetorheological damping system sets firmly on seat chair basin, magnetorheological damping system passes through weighing sensor and is connected with the main frame, it forces taut and quick release system to set up on seat chair basin to go up the truck, multi-functional undershirt forces taut and quick release system to be connected with seat chair basin through last truck, the controller is connected with weighing sensor and magnetorheological damping system respectively.
2. The multiple protection integrated helicopter crash-resistant seat according to claim 1, wherein the magnetorheological damping system comprises a high-strength webbing, a damper and a connecting shaft, one end of the high-strength webbing is wound on the connecting shaft of the damper, the other end of the high-strength webbing is connected with a weighing sensor, and the weighing sensor is fixedly arranged on the main framework.
3. The multiple protection integrated helicopter crash resistant seat of claim 2 wherein the damper is a magnetorheological damper.
4. The multiple protection integrated helicopter crash resistant seat of claim 1 wherein the upper torso positive take-up and quick release system comprises a quick release handle, a lower connecting rod, a lower connecting block, a transfer rod, a multi-functional transfer block, a pull rod, a lower lock rod, a compression spring, a wire rope, an upper transfer block, an upper connecting rod, an upper transfer block, an upper lock rod, a shoulder strap and a shoulder strap take-up mechanism, the lower connecting rod is disposed below the upper connecting rod, the quick release handle is connected to one end of the lower connecting rod, the other end of the lower connecting rod is connected to the lower end of the wire rope, the upper end of the wire rope is connected to the upper transfer block, and the upper transfer block is connected to the upper connecting rod;
the upper rotating connecting block is connected with the upper locking rod, one end of the shoulder strap tensioning belt is connected with the shoulder strap tensioning mechanism, the other end of the shoulder strap tensioning belt is inserted into a lock hole of the upper locking rod, the lower rotating connecting block is sleeved on the lower connecting rod, the lower rotating connecting block is connected with the multifunctional rotating connecting block through the converting rod, the multifunctional rotating connecting block is connected with the lower locking rod through the pull rod, the shoulder strap tensioning belt is connected with the upper end of the multifunctional vest, the lower locking rod is connected with the lower end of the multifunctional vest, the lower locking rod is sleeved with the compression spring, and the lower locking rod can automatically reset through the compression spring.
5. The multiple protection integrated helicopter crash resistant seat of claim 4 wherein there are two pull rods and two lower lock rods, one end of each of the two pull rods is connected to each side of the multifunctional adapter block, the two lower lock rods are connected to each other, and each of the two lower lock rods is connected to each of the two lower lock rods.
6. The multiple protection integrated helicopter crash-resistant seat according to claim 4, wherein the number of the upper transfer blocks and the number of the upper lock rods are two, the two upper transfer blocks are respectively sleeved at two ends of the upper connecting rod, the two upper lock rods are respectively connected with the two upper transfer blocks, and two sides of the upper end of the multifunctional vest are respectively connected with the two upper lock rods.
7. The multiple protection integrated helicopter crash resistant seat of claim 4 wherein the multifunctional transition block is disposed on the back of the seat pan through a pivot, the shoulder strap tensioning mechanism is fixedly disposed on the seat pan, and the upper and lower connecting rods are respectively sleeved on the upper and lower ends of the seat pan.
8. The multiple protection integrated helicopter crash resistant seat according to claim 4 wherein the multifunctional vest comprises a vest body, two shoulder strap tightening straps are connected to the upper end of the vest body, an upper strap locking buckle and a tightening strap are connected between the two shoulder strap tightening straps, two leg straps are connected to the lower end of the vest body, leg strap guide rings are provided on both sides of the vest body, the two leg straps pass through the leg strap guide rings on the respective sides, and a leg strap locking buckle and a tightening strap are connected therebetween.
9. The multiple protection integrated helicopter crash resistant seat of claim 1 wherein a seat cushion is provided on the seat basin, a back cushion is provided on the back of the seat basin, a lifeboat is embedded in the back cushion of the seat, and the main frame is used to connect and fix with the cabin.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910961311.7A CN110606207A (en) | 2019-10-11 | 2019-10-11 | Multi-protection integrated helicopter crash-resistant seat |
| PCT/CN2020/119576 WO2021068845A1 (en) | 2019-10-11 | 2020-09-30 | Crash-resistant helicopter seat integrated with multiple protections |
| US17/767,930 US20230391453A1 (en) | 2019-10-11 | 2020-09-30 | Anti-crash helicopter seat integrating multiple protections |
| ZA2022/05227A ZA202205227B (en) | 2019-10-11 | 2022-05-11 | Crash-resistant helicopter seat integrated with multiple protections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910961311.7A CN110606207A (en) | 2019-10-11 | 2019-10-11 | Multi-protection integrated helicopter crash-resistant seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110606207A true CN110606207A (en) | 2019-12-24 |
Family
ID=68894394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910961311.7A Pending CN110606207A (en) | 2019-10-11 | 2019-10-11 | Multi-protection integrated helicopter crash-resistant seat |
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| Country | Link |
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| CN (1) | CN110606207A (en) |
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| CN112224420A (en) * | 2020-10-14 | 2021-01-15 | 航宇救生装备有限公司 | Crash-resistant seat capable of changing load and absorbing energy |
| CN112407292A (en) * | 2020-11-23 | 2021-02-26 | 北京安达维尔航空设备有限公司 | Integrated structure of aviation seat and lifesaving parachute |
| WO2021068845A1 (en) * | 2019-10-11 | 2021-04-15 | 航宇救生装备有限公司 | Crash-resistant helicopter seat integrated with multiple protections |
| CN112722215A (en) * | 2021-01-27 | 2021-04-30 | 山东交通学院 | Personnel transfer device for marine rescue |
| CN113602504A (en) * | 2021-09-23 | 2021-11-05 | 北京安达维尔航空设备有限公司 | Novel multi-functional lightweight crash-resistant seat |
| CN114476089A (en) * | 2021-12-31 | 2022-05-13 | 中国航空工业集团公司西安飞机设计研究所 | Control system and method for avoiding misoperation of pilot during air separation and reset |
| EP4079637A1 (en) * | 2021-04-20 | 2022-10-26 | B/E Aerospace, Inc. | Combination energy impact attenuation, vibration mitigation and flotation device for aircraft seating applications |
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| CN114476089B (en) * | 2021-12-31 | 2023-06-23 | 中国航空工业集团公司西安飞机设计研究所 | Control system and method for avoiding pilot air-lift reset misoperation |
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