CN109383815A - It is a kind of pneumatically to unlock mechanism of opening the cabin - Google Patents
It is a kind of pneumatically to unlock mechanism of opening the cabin Download PDFInfo
- Publication number
- CN109383815A CN109383815A CN201811392675.XA CN201811392675A CN109383815A CN 109383815 A CN109383815 A CN 109383815A CN 201811392675 A CN201811392675 A CN 201811392675A CN 109383815 A CN109383815 A CN 109383815A
- Authority
- CN
- China
- Prior art keywords
- ball
- sleeve
- piston
- cylinder body
- unlock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering 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
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
It is a kind of pneumatically to unlock mechanism of opening the cabin, including rigid hatchcover (1), air bag (2), gas-operated lock (5), compressed air source unit (6), the gas-operated lock (5) includes cylinder body (7), piston (8), supporting block (9), limited block (10), compact heap (11), ball (12), spring (13), air inlet (14), groove (17), it opens compressed air source unit (6), high pressure gas enters cylinder body (7) interior closed cavity (16) by air inlet (14) from unlock air supply pipe (3) all the way, push piston (8) overcome spring (13) pretightning force movement compress can release to ball (12) constrain, ball (12) rolls into groove (17), ball (12) releases the constraint to compact heap (11), compact heap (11) and rigid hatchcover (1) are just In free state, releases gas-operated lock (5) and the locking of rigid hatchcover (1) is constrained；Another way high pressure gas enters package state air bag (2) for its inflation, inflation air bag for molding (2) can push away rigid hatchcover (1) in the unlocked state, and air bag (2) inflation works.
Description
Technical field
The present invention is air bag emergency survival technology, in particular to a kind of pneumatically to unlock mechanism of opening the cabin.
Background technique
The aviations emergency gas bag class product majority such as existing helicopter floating drum, life raft is using flexible coating fabric as outer
Layer package, is made design outline for flexible coating fabric and realizes envelope by determining the modes such as power rope, velcro fastener, four-part button
Packet, that there are shapes is irregular for flexible covering technology packet, sealing difficulty, loss of properties on aging, receiving aircraft high-speed flight gas
The problems such as dynamic loading, it is also difficult to be consistent in appearance with aircraft, be difficult to apply on high speed aircraft.Using rigid cabin
Body carries out air bag package, then can significantly solve the problems, such as flexible coating fabric package, but needs to solve quick release and be detached from rigidity
The technical problem of cabin.
Summary of the invention
Goal of the invention: mechanism of opening the cabin pneumatically is unlocked the present invention provides a kind of, it is dynamic which does not need to increase additionally starting
The air bags products such as emergency floating drum, life raft, emergency slide can be carried out rigid cabin package storage and quick release by power, should
Pneumatic unlock mechanism of opening the cabin can guarantee the aerodynamic configuration of package air bag, realize rigid cabin and aircraft be reliably connected and air bag
Fast aeration expansion.
Technical solution: the present invention provides one kind and pneumatically unlocks mechanism of opening the cabin, including rigid hatchcover (1), air bag (2), unlock
Air supply pipe (3), air bag air supply pipe (4), gas-operated lock (5), compressed air source unit (6)；
The gas-operated lock (5) includes cylinder body (7), piston (8), support sleeve (9), limit sleeve (10), clamping sleeve (11), ball
(12), spring (13), air inlet (14), boss (15), closed cavity (16), groove (17), air hole (18), cylinder body (7) are left
End is provided with the air hole (18) communicated with the outside world, and cylinder body right end is fixedly connected with support sleeve (9)；
Piston (8) is slidably matched with cylinder body, and bar portion and the support sleeve (9) of piston (8) are slidably matched, and piston and cylinder body it
Between be provided with sealing ring, be provided with sealing ring between the bar portion and support sleeve of piston；Cylinder body (7) right end, piston (8) and support
Set (9) surrounds closed cavity (16), and the side of cylinder body (7) right end is provided with the air inlet (14) connecting with unlock air supply pipe (3), institute
It states air inlet and is connected to the closed cavity；Cylinder body (7) right end is fixedly connected with support sleeve (9)；
Piston (8) is formed with boss (15) on one side towards cylinder body left end, and spring (13) is stuck in boss (15) and cylinder body (7)
Between left end and provide elastic pre-stress；
Support sleeve (9) and limit sleeve (10) are set on the piston rod, and support sleeve (9) and limit sleeve (10) are integrally transported
Dynamic, limit sleeve is provided with ball, and ball can hold ball (12) and pass through, and the diameter of the ball is greater than limit sleeve wall thickness, in limit sleeve
Outside coaxial sleeve is equipped with clamping sleeve (11), and clamping sleeve is fixedly connected with rigid hatchcover (1), and clamping sleeve is matched with limit sleeve sliding
It closes, ball is pressed in the ball by clamping sleeve, so that ball is clipped between piston bar portion and clamping sleeve, clamping sleeve left end is radial
It is formed with fastener, ball is limited, so that limit sleeve (10) is locked together with clamping sleeve (11)；
Compressed air source unit (6) is communicated to air inlet (14) by unlocking air supply pipe (3), is communicated to by air bag air supply pipe (4)
Air bag (2).
Further, support sleeve (9) is also provided with ball, and the ball of the support sleeve (9) and the ball of limit sleeve are located at same
Shaft position, the diameter of the ball are greater than the sum of support sleeve wall thickness and limit sleeve wall thickness, and the ball is located at support sleeve and compression
In the ball of set
Compressed air source unit is opened, high pressure gas enters closed cavity in cylinder body by air inlet from unlock air supply pipe all the way, pushes away
Piston overcomes initial tension of spring movement compress to release and constrain ball, and ball rolls into groove, and ball is released to pressure
The constraint of tight block, compact heap and rigid hatchcover are at free state, release gas-operated lock and constrain the locking of rigid hatchcover；
Another way high pressure gas enters package state air bag for its inflation, and inflation air bag for molding can will be located
It is pushed away in the rigid hatchcover of unlocked state, air bag inflation works.
The rigidity hatchcover shape is adapted with cabin shape.
The number and layout of the gas-operated lock are determined according to rigid hatchcover shape and the power for needing to bear.Multiple gas-operated locks it
Between most handy unlock air supply pipe series winding.
Piston compressed spring is along cylinder body to there are the diameters that the operation stroke of air hole one end should be equal to or more than ball.
Technical effect: the pneumatic unlock provided by the present invention mechanism action that opens the cabin is fast and reliable, and ensure that aerodynamic configuration,
It can effectively solve the problem that the locking and quick release problem during air bag product is stored and is inflating expanded, promotion price with higher
Value.
Object of the present invention is to the carry out rigidity cabin packages for air bags products such as the floating drum that will meet an urgent need, life raft, emergency slides
Storage and quick release provide one kind and pneumatically unlock open the cabin mechanism, while small volume, start time short reliable operation.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is gas-operated lock lockup state A-A sectional view of the present invention；
Fig. 3 is gas-operated lock unlocked state A-A sectional view of the present invention.
Wherein, 1- rigidity hatchcover, 2- air bag enfeoffment bag-like state and inflated condition, 3- unlock air supply pipe, 4- air bag air supply pipe,
5- gas-operated lock, 6- compressed air source unit.7- cylinder body, 8- piston, 9- supporting block, 10- limited block, 11- compact heap, 12- ball, 13- bullet
Spring, 14- air inlet, 15- boss, 16- closed cavity, 17- groove, 18- air hole.
Specific embodiment
Is described in further detail to the present invention/invention below by specific embodiment
One kind is provided and pneumatically unlocks mechanism of opening the cabin, including rigid hatchcover 1, air bag 2, unlock air supply pipe 3, air bag air supply pipe 4,
Gas-operated lock 5, compressed air source unit 6.The gas-operated lock 5 includes cylinder body 7, piston 8, supporting block 9, limited block 10, compact heap 11, ball
12, spring 13, air inlet 14, boss 15, closed cavity 16, groove 17, air hole 18；
7 one end end of cylinder body is provided with the air hole 18 communicated with the outside world, and other end end is fixedly connected with supporting block 9,
Piston 8 and supporting block 9 are cooperatively connected, and are sealed by a seal ring, and match between cylinder body 7,8 supporting block 9 of piston
It closes connection and forms closed cavity 16, cylinder body 7 is provided with the air inlet connecting with unlock air supply pipe 3 in the side close to 9 one end of supporting block
Mouth 14；
There is a boss 15 in 8 one end of piston, and spring 13 is stuck between boss 15 and cylinder body 7, and the other end is supported 9 He of block respectively
Limited block 10 is withstood, and supporting block 9 and limited block 10 are provided with the groove 17 that can hold ball 12, and 11 one end of compact heap compresses limited block
10, the other end is fixed with rigid hatchcover 1 by screw, and ball 12 is jacked up constraint compact heap 11 for rigid hatchcover 1 by piston 8
Locking；
The unlock air supply pipe 3 that promising gas-operated lock 5 supplies and the air bag air supply pipe supplied for air bag 2 are connected on compressed air source unit 6
4；
Compressed air source unit 6 is opened, high pressure gas enters confined air in cylinder body 7 by air inlet 14 from unlock air supply pipe 3 all the way
Chamber 16 pushes piston 8 that the movement of 13 pretightning force of spring is overcome compress to release and constrain ball 12, and ball 12 rolls into groove 17
Interior, ball 12 releases the constraint to compact heap 11, and compact heap (11) and rigid hatchcover (1) are at free state, release pneumatic
Lock the locking constraint of 5 pairs of rigid hatchcovers 1；
Another way high pressure gas enters package state air bag 2 for its inflation, and inflation air bag 2 for molding can incite somebody to action
Rigid hatchcover 1 in the unlocked state pushes away, and 2 inflation of air bag works.
Rigidity 1 shape of hatchcover is adapted with cabin shape.
The number and layout of the gas-operated lock 5 are determined according to rigid 1 shape of hatchcover and the power for needing to bear.Multiple gas-operated locks
Most handy unlock air supply pipe 3 is contacted between 5.
8 compressed spring 13 of piston is along cylinder body 7 to there are the operation strokes of 18 one end of air hole should be equal to or more than ball 12
Diameter.
Further illustrate: it is described rigidity hatchcover 1 by package state air bag 2 be encapsulated in it is interior protect, rigid cabin
Lid 1 is fixed by the ball on gas-operated lock 5 and locking, the shell of gas-operated lock 5 are installed on air bag cabin.On compressed air source unit 6
Connection unlock air supply pipe 3 and air bag air supply pipe 4, two bye-passes are connected respectively to gas-operated lock 5 and air bag 1.The boss in 8 left side of piston
Compressed spring 13 is limited between cylinder 7 and piston 8,8 right side of piston is supported block 9 respectively and limited block 10 is withstood, and compresses
Block 12 is fixed with rigid hatchcover 1 by screw, because ball is jacked up to constrain compact heap 12 by piston 8, realizes cabin
The protection of lid 1 and the effect of sealing up for safekeeping.
When needing to be inflated work to air bag 2, the rapid deflation operations after being started of compressed air source unit 6, the height of releasing
Press compressed gas that can enter gas-operated lock 5 by unlock air supply pipe 3 on a small quantity, most of compressed gas is entered by air bag air supply pipe 4
In the air bag 2 for folding package state.Into gas-operated lock 5 compressed gas enter piston 8, supporting block 9 and 7 row of cylinder at it is closed
In cavity, compressed gas pushes piston 8 to move downward compressed spring 13, and piston can be released to ball 12 after moving certain distance
Constraint, ball 12 can be fallen into limited block 10 and the groove of supporting block 9, and the constraint of ball namely contact to compact heap 11 compresses
Block 11 and rigid hatchcover 1 are at 1 free state, release the locking constraint of 5 pairs of gas-operated lock rigid hatchcovers 1, realize pneumatic solution
Lock is detached from.Into package state air bag 2 high pressure compressed gas by its inflation, inflation air bag 2 for molding can will
Rigid hatchcover 1 in the unlocked state pushes away, and 2 inflation of air bag works.
Rigid hatchcover is fixed the gas-operated lock and locking, rigid cylinder cap pass through screw with the compact heap on gas-operated lock
It is assembled together, the ball that gas-operated lock compact heap is jacked up by piston carries out locking.Gas-operated lock layout on rigid hatchcover can guarantee
The shape of rigid hatchcover and aircraft is close, ensure that the aerodynamic characteristic of aircraft, and by air bag package in rigid hatchcover.
When compressed air source unit, which is excited, is deflated, a small amount of gas is had by unlocking air supply pipe and enters gas-operated lock, enter
Gas in gas-operated lock will push piston and move downward compressed spring, and the limitation to ball can be released when piston moves downward, this
When compact heap and hatchcover be still assembled together in free state, realize and be detached from unlock, rigid hatchcover is no longer locked.
Most of gas that compressed air source unit is released can enter the air bag of package state by air bag air supply pipe, as air bag fills
Rigid hatchcover is ejected release jettisoning by the expansive force that gas expansion generates.
The rigidity hatchcover is by gas-operated lock locking, by the airbag cover of package in cabin.Enter when compressed air source unit is deflated pneumatic
The gas push piston of lock moves downward, and releases constraint of the ball to compact heap and cylinder cap, realizes and is detached from unlock, and air bag inflation will
Rigid hatchcover is swollen to be pushed away.
It is that air bag gas supply makes air bag inflation, while having a small amount of gas that compressed air source unit, which mainly passes through air bag air supply pipe,
It is that gas-operated lock gas supply is unlocked by unlock air supply pipe.
Claims (6)
- The mechanism 1. a kind of pneumatic unlock is opened the cabin, including rigid hatchcover (1), air bag (2), unlock air supply pipe (3), air bag air supply pipe (4), gas-operated lock (5), compressed air source unit (6), it is characterised in that:The gas-operated lock (5) includes cylinder body (7), piston (8), support sleeve (9), limit sleeve (10), clamping sleeve (11), ball (12), spring (13), air inlet (14), boss (15), closed cavity (16), groove (17), air hole (18), cylinder body (7) are left End is provided with the air hole (18) communicated with the outside world, and cylinder body right end is fixedly connected with support sleeve (9)；Piston (8) is slidably matched with cylinder body, and bar portion and the support sleeve (9) of piston (8) are slidably matched, and set between piston and cylinder body It is equipped with sealing ring, is provided with sealing ring between the bar portion and support sleeve of piston；Cylinder body (7) right end, piston (8) and support sleeve (9) it surrounds closed cavity (16), the side of cylinder body (7) right end is provided with the air inlet (14) connecting with unlock air supply pipe (3), described Air inlet is connected to the closed cavity；Cylinder body (7) right end is fixedly connected with support sleeve (9)；Piston (8) is formed with boss (15) on one side towards cylinder body left end, and spring (13) is stuck in boss (15) and cylinder body (7) left end Between and elastic pre-stress is provided；Support sleeve (9) and limit sleeve (10) are set on the piston rod, and support sleeve (9) and limit sleeve (10) integrally move, limit Position set is provided with ball, and ball can hold ball (12) and pass through, and the diameter of the ball is greater than limit sleeve wall thickness, same on the outside of limit sleeve Axle sleeve is equipped with clamping sleeve (11), and clamping sleeve is fixedly connected with rigid hatchcover (1), and clamping sleeve is slidably matched with limit sleeve, compresses Ball is pressed in the ball by set, so that ball is clipped between piston bar portion and clamping sleeve, clamping sleeve left end has been formed radially Fastener limits ball, so that limit sleeve (10) is locked together with clamping sleeve (11)；Compressed air source unit (6) is communicated to air inlet (14) by unlocking air supply pipe (3), is communicated to air bag by air bag air supply pipe (4) (2)。
- The mechanism 2. a kind of pneumatic unlock as described in claim 1 is opened the cabin, it is characterised in that: support sleeve (9) is also provided with ball, institute The ball of the ball and limit sleeve of stating support sleeve (9) is located at coaxial position, and the diameter of the ball is greater than support sleeve wall thickness and limit The sum of position sleeve wall thickness, the ball is located in the ball of support sleeve and clamping sleeve.
- The mechanism 3. unlock as described in claim 1 a kind of pneumatic is opened the cabin, it is characterised in that: the number of the gas-operated lock (5) and Layout is determined according to rigid hatchcover (1) shape and the power for needing to bear.
- The mechanism 4. a kind of pneumatic unlock as described in claim 1 is opened the cabin, it is characterised in that: pass through between multiple gas-operated locks (5) Unlock air supply pipe (3) series winding.
- The mechanism 5. a kind of pneumatic unlock as described in claim 1 is opened the cabin, it is characterised in that: the compression of the compressed spring (13) Stroke is equal to or more than the diameter of ball (12).
- The mechanism 6. unlock as described in claim 1 a kind of pneumatic is opened the cabin, it is characterised in that: rigidity hatchcover (1) shape with Cabin shape is adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392675.XA CN109383815B (en) | 2018-11-21 | 2018-11-21 | Pneumatic unlocking cabin opening mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392675.XA CN109383815B (en) | 2018-11-21 | 2018-11-21 | Pneumatic unlocking cabin opening mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109383815A true CN109383815A (en) | 2019-02-26 |
| CN109383815B CN109383815B (en) | 2023-10-20 |
Family
ID=65428901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811392675.XA Active CN109383815B (en) | 2018-11-21 | 2018-11-21 | Pneumatic unlocking cabin opening mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109383815B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115507710A (en) * | 2022-09-27 | 2022-12-23 | 北京星河动力装备科技有限公司 | Rocket landing telescopic arm and rocket recovery device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8501791D0 (en) * | 1984-02-18 | 1985-02-27 | Messerschmitt Boelkow Blohm | Aerodynamic stabilisation mechanism |
| US4508294A (en) * | 1983-05-02 | 1985-04-02 | The United States Of America As Represented By The Secretary Of The Navy | Air bag restraint system |
| JP2007284059A (en) * | 2007-07-25 | 2007-11-01 | Ihi Aerospace Co Ltd | Shock absorber of parachuted article |
| CN102530268A (en) * | 2011-08-02 | 2012-07-04 | 中国人民解放军国防科学技术大学 | Air bag type flywheel locking and unlocking device |
| CN103292639A (en) * | 2013-06-09 | 2013-09-11 | 江西洪都航空工业集团有限责任公司 | Driving device locking mechanism for guided missile |
| CN104334451A (en) * | 2012-06-08 | 2015-02-04 | 埃尔塞乐公司 | Locking/unlocking device for a one-piece cover of a thrust reverser of a turbojet engine nacelle |
| CN104477394A (en) * | 2014-11-28 | 2015-04-01 | 航宇救生装备有限公司 | Seat mechanical lock with restoring force |
| US9567774B1 (en) * | 2015-05-15 | 2017-02-14 | Northrop Grumman Systems Corporation | Temporally staged rapid panel access fastener for highly curved panels |
| CN107654699A (en) * | 2017-10-31 | 2018-02-02 | 航宇救生装备有限公司 | A kind of emergency evacuation slide release valve module |
| CN108100242A (en) * | 2017-12-03 | 2018-06-01 | 中国直升机设计研究所 | A kind of external helicopter short limb floating drum cabin |
-
2018
- 2018-11-21 CN CN201811392675.XA patent/CN109383815B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4508294A (en) * | 1983-05-02 | 1985-04-02 | The United States Of America As Represented By The Secretary Of The Navy | Air bag restraint system |
| GB8501791D0 (en) * | 1984-02-18 | 1985-02-27 | Messerschmitt Boelkow Blohm | Aerodynamic stabilisation mechanism |
| JP2007284059A (en) * | 2007-07-25 | 2007-11-01 | Ihi Aerospace Co Ltd | Shock absorber of parachuted article |
| CN102530268A (en) * | 2011-08-02 | 2012-07-04 | 中国人民解放军国防科学技术大学 | Air bag type flywheel locking and unlocking device |
| CN104334451A (en) * | 2012-06-08 | 2015-02-04 | 埃尔塞乐公司 | Locking/unlocking device for a one-piece cover of a thrust reverser of a turbojet engine nacelle |
| CN103292639A (en) * | 2013-06-09 | 2013-09-11 | 江西洪都航空工业集团有限责任公司 | Driving device locking mechanism for guided missile |
| CN104477394A (en) * | 2014-11-28 | 2015-04-01 | 航宇救生装备有限公司 | Seat mechanical lock with restoring force |
| US9567774B1 (en) * | 2015-05-15 | 2017-02-14 | Northrop Grumman Systems Corporation | Temporally staged rapid panel access fastener for highly curved panels |
| CN107654699A (en) * | 2017-10-31 | 2018-02-02 | 航宇救生装备有限公司 | A kind of emergency evacuation slide release valve module |
| CN108100242A (en) * | 2017-12-03 | 2018-06-01 | 中国直升机设计研究所 | A kind of external helicopter short limb floating drum cabin |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115507710A (en) * | 2022-09-27 | 2022-12-23 | 北京星河动力装备科技有限公司 | Rocket landing telescopic arm and rocket recovery device |
| CN115507710B (en) * | 2022-09-27 | 2023-09-05 | 北京星河动力装备科技有限公司 | Rocket landing telescopic arm and rocket recovery device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109383815B (en) | 2023-10-20 |
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