CN110327556A - A kind of high building electromagnetic damping escape device - Google Patents
A kind of high building electromagnetic damping escape device Download PDFInfo
- Publication number
- CN110327556A CN110327556A CN201910276499.1A CN201910276499A CN110327556A CN 110327556 A CN110327556 A CN 110327556A CN 201910276499 A CN201910276499 A CN 201910276499A CN 110327556 A CN110327556 A CN 110327556A
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- CN
- China
- Prior art keywords
- escape
- well
- rope
- side escape
- compartment
- 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.)
- Pending
Links
- 238000013016 damping Methods 0.000 title claims abstract description 29
- 229910052802 copper Inorganic materials 0.000 claims abstract description 32
- 239000010949 copper Substances 0.000 claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000001681 protective effect Effects 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 3
- 229910001095 light aluminium alloy Inorganic materials 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 3
- 230000004907 flux Effects 0.000 abstract description 3
- 230000005674 electromagnetic induction Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003464 cuspid Anatomy 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/02—Devices for lowering persons from buildings or the like by making use of rescue cages, bags, or the like
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/02—Devices for lowering persons from buildings or the like by making use of rescue cages, bags, or the like
- A62B1/04—Single parts, e.g. fastening devices
Abstract
The invention discloses a kind of high building electromagnetic damping escape devices; including rescue cabin module, change pulley module and magnetic damping deceleration piston modules; rescue storehouse module includes left side escape well and right side escape well, left side escape compartment, right side escape compartment, the cushion that escape bottom is arranged in; change pulley module includes double track rope sheave, rope sheave central axis, speed change gear wheel, change speed pinion, cam and rope, and magnetic damping deceleration piston modules include cam link, magnet, copper pipe and protective case；The present invention is moved back and forth in copper pipe using magnet, since reciprocating motion of the magnet in copper pipe will lead to the continuous variation of magnetic flux, induced current can be generated on copper pipe by faraday's theorem, its induced current generated meeting association induced magnetic field acts on magnet in turn known to Lenz's law, slows down the decrease speed of rescue cabin using the resistance that electromagnetic induction phenomenon constantly generates in lesser space.
Description
Technical field
The present invention relates to field survival equipment technical fields, more specifically, more particularly to a kind of high building electromagnetic damping escape
Generating apparatus.
Background technique
Along with quickly propelling for urbanization, the surge of urban population, in order to meet inhabitation and office demand, building height
Increasingly increase.When in face of emergency situations such as fire, high building is often caused serious due to lacking effective escape means
Injures and deaths.Therefore, the concern for the research of escape device for high-rise buildings increasingly by society.Currently, common high building is escaped on the market
Generating apparatus is mainly the Emergency rope of saving oneself using descending lifeline, life saving gas cushion, the equipment such as lifesaving slideway.Emergency rope of saving oneself was using
Manual fixation is needed in journey, needs constantly to adjust rope position during decline, since old man complicated for operation and child can not be single
The secondary injury of shoulder neck is easily caused when solely using, and declining.Life saving gas cushion is a kind of inflatable air cushion, since it cannot be rapidly achieved
Scene of fire is come into operation, and a large amount of rescue times are wasted, and is only limitted to lower floor.Although lifesaving slideway can allow old man
It is used with child, but principle is rescued due to it and depends on the guide sleeve material of its internal layer, and is easily scratched, therefore safety is lower.
Summary of the invention
It is an object of the invention to solve deficiency existing for above-mentioned existing survival equipment, a kind of high building electromagnetic damping is proposed
Escape device has longer life, is not necessarily to other driven by energy, highly-safe.
The present invention is through the following technical solutions to achieve the above objectives: a kind of high building electromagnetic damping escape device, including rescues
Cabin module, change pulley module and magnetic damping deceleration piston modules are helped,
The rescue storehouse module includes that the left side escape well being symmetrical set and right side escape well, setting are escaped in left side
Left side escape compartment inside well, the right side escape compartment being arranged in inside right side escape well, setting escapes well in left side and right side is escaped
It is provided with escape well sliding rail on three sides of the cushion of raw bottom, the left side escape well and inside escape well, it is left
Three bootstrap blocks matched with the escape well sliding rail in left side escape well are provided on the escape compartment of side, left side escape compartment passes through three
Escape well sliding rail in a bootstrap block and left side escape well match merge can be along the escape well sliding rail in left side escape well above and below
Sliding；Three bootstrap blocks matched with the escape well sliding rail in right side escape well, right side are provided on the right side escape compartment
Escape compartment matches to merge to escape along right side with the escape well sliding rail that right side is escaped in well by three bootstrap blocks to be escaped in well
Raw well sliding rail slides up and down；
The change pulley module includes double track rope sheave, rope sheave central axis, speed change gear wheel, change speed pinion, cam and rope
Rope, the double track rope sheave and speed change gear wheel are each attached to rope sheave central axis, the fixed rescue storehouse module in the both ends of rope sheave central axis
On the metope of upper end, the rope includes left rope and right rope, and twice rope groove is provided on the double track rope sheave, left rope
One end is fixed on a wherein rope groove for double track rope sheave, the other end connection left side escape compartment of left rope, one end of right rope
It is fixed on another rope groove of double track rope sheave, the other end connection right side escape compartment of right rope, the left side escape compartment and the right side
One is located at rescue storehouse module topmost when the escape compartment initial position of side, another is located at the bottom of rescue storehouse module；Two
Change speed pinion is engaged with speed change canine tooth roller box, and is further fixed on cam in the fixing axle of two change speed pinions；
The magnetic damping deceleration piston modules include cam link, magnet, copper pipe and protective case, and the magnetic damping, which is slowed down, lives
Plug module is provided with symmetrical a pair, and the upper end of the cam link of two magnetic damping deceleration piston modules is separately connected two
Two fixed cams in the fixing axle of change speed pinion, the lower end of cam link connect magnet, the magnet it is cylindrical and
It is arranged inside copper pipe, the peripheral surface of magnet and the inner wall clearance fit of copper pipe, the magnet of cam link lower end is in cam
It moves up and down under drive along copper pipe；Protective case is enclosed with outside the copper pipe.
Further, the left side escape compartment and right side escape compartment are made of light aluminum alloy material.
Further, the rope is made of heat-resisting material.
Further, it is provided with hatch door on the left side escape compartment and right side escape compartment, hatch door uses the side of machinery folding
Formula is opened and closed.The mode of machinery folding is it is possible to prevente effectively from power-off is the problem of can not be successfully folding.
Further, the height of the left side escape well and right side escape well is identical as story height, the rope lengths
And the sum of the height of left side escape compartment or right side escape compartment is identical as story height, and the length of the copper pipe is much smaller than story height
Degree.
Further, the protective case is filled in pipe, and protective case inner wall and copper pipe outer are interference fitted, and the protective case is by exhausted
Edge heat-barrier material is made.
Further, the fixing axle of the rope sheave central axis and change speed pinion passes through external frame and is fixed on wall
On.
The beneficial effects of the present invention are: the present invention is moved back and forth in copper pipe using magnet, since magnet is in copper pipe
Reciprocating motion will lead to the continuous variation of magnetic flux, induced current can be generated on copper pipe by faraday's theorem, determined by Lenz
Its induced current generated meeting association induced magnetic field acts on magnet in turn known to rule, and electromagnetism sense is utilized in lesser space
The resistance for answering phenomenon constantly to generate slows down the decrease speed of rescue cabin；The present apparatus is compact-sized, and the service life is long, and does not need other
Driven by energy, it is highly-safe；It is not necessarily to artificially adjust position during rope-lowering of the present invention, rescue cabin passes through bootstrap block and escape
Well sliding rail sliding guidance, movement are steady；The present invention is not necessarily to nuisance operation, is suitable for the special populations such as old man and child；The present invention
Using the mode of left and right subdivision, the secondary injury of escape personnel is avoided, withdraws rope, lifting using escape personnel's self gravity
Rescue cabin continues to sue and labour to remaining trapped person, and rescue efficiency is high.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the structural schematic diagram when present invention uses.
Fig. 3 is the structural schematic diagram of the twin pulley of the present invention.
Fig. 4 is the structural schematic diagram of escape compartment of the present invention.
Fig. 5 is the structural schematic diagram of change pulley module of the present invention and magnetic damping deceleration piston modules.
Fig. 6 is the internal structure cross-sectional view of magnetic damping deceleration piston modules of the present invention.
In figure, escape well, 2- cushion, the right rope of 3-, the right side 4- escape compartment, 5- double track rope sheave, 6- escape well on the right side of 1-
Sliding rail, 7- change speed pinion, 8- speed change gear wheel, the left rope of 9-, escape compartment on the left of 10-, 11- protective case, 12- cam link,
13- cam, 14- copper pipe, 15- magnet, 16- bootstrap block.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As shown in figs. 1 to 6, a kind of high building electromagnetic damping escape device, it is characterised in that: including rescue cabin module, speed change
Take turns module and magnetic damping deceleration piston modules；The rescue storehouse module includes that the left side escape well being symmetrical set and right side are escaped
Raw well 1, the left side escape compartment 10 being arranged in inside left side escape well, the right side escape compartment 4 being arranged in inside right side escape well 1,
The cushion 2 of left side escape well and right side escape 1 bottom of well, three sides of the left side escape well and inside escape well are set
It is provided with escape well sliding rail 6 on face, is provided on left side escape compartment 10 and is matched with the escape well sliding rail 6 in left side escape well
Three bootstrap blocks 16, left side escape compartment 10 matched by three bootstrap blocks 16 with the escape well sliding rail 6 in left side escape well
And the escape well sliding rail 6 in well that can escape along left side slides up and down；It is provided on the right side escape compartment 4 and right side escape well
Three bootstrap blocks 16 that escape well sliding rail 6 in 1 matches, right side escape compartment 4 pass through three bootstrap blocks 16 and right side escape well 1
Interior escape well sliding rail 6, which matches, to be merged and can slide up and down along the escape well sliding rail 6 in right side escape well 1.
The change pulley module includes double track rope sheave 5, rope sheave central axis, speed change gear wheel 8, change speed pinion 7, cam 13
And rope, the double track rope sheave 5 and speed change gear wheel 8 are each attached to rope sheave central axis, the fixed rescue in the both ends of rope sheave central axis
On the metope of storehouse module upper end.The rope is made of heat-resisting material, and the rope includes left rope 9 and right rope 3, described
Twice rope groove is provided on double track rope sheave 5, one end of left rope 9 is fixed on a wherein rope groove for double track rope sheave 5, left rope
9 other end connection left side escape compartment 10, one end of right rope 3 are fixed on another rope groove of double track rope sheave 5, right rope 3
Other end connection right side escape compartment 4, one is located at rescue storehouse when the left side escape compartment 10 and right side 4 initial position of escape compartment
Topmost, another is located at the bottom of rescue storehouse module to module；Two change speed pinions 7 engage for 8 casees with speed change gear wheel,
And cam 13 is further fixed in the fixing axle of two change speed pinions 7.
The magnetic damping deceleration piston modules include cam link 12, magnet 15, copper pipe 14 and protective case 11, the magnetic resistance
Buddhist nun's deceleration piston modules are provided with symmetrical a pair, the upper end point of the cam link 12 of two magnetic damping deceleration piston modules
Two cams 13 that Lian Jie be unfixed in the fixing axle of two change speed pinions 7, the lower end of cam link 12 connects magnet 15, institute
It is cylindrical and be arranged inside copper pipe 14 to state magnet 15, the inner wall clearance fit of the peripheral surface of magnet 15 and copper pipe 14 is convex
The magnet 15 for taking turns 12 lower end of connecting rod moves up and down under the drive of cam 13 along copper pipe 14；Guarantor is enclosed with outside the copper pipe 14
Sheath 11.
The left side escape compartment 10 and right side escape compartment 4 are made of light aluminum alloy material.The left side escape compartment 10
With hatch door is provided on right side escape compartment 4, hatch door is opened and closed by the way of machinery folding.Hatch door is arranged in left side
The other three side of the same side of escape compartment 10 and right side escape compartment 4, left side escape compartment 10 and right side escape compartment 4 is arranged
There is bootstrap block 16；And each side is provided at least two bootstrap blocks 16.The escape T-shaped design of well sliding rail 6, guarantee, which is played, draws
The gear for leading part is larger, will not lead to positional shift because of external force.
The height of the left side escape well and right side escape well 1 is identical as story height, and the rope lengths are escaped with left side
The sum of the height of raw cabin 10 or right side escape compartment 4 is identical as story height, and the length of the copper pipe 14 is much smaller than story height.
The protective case 11 is filled in pipe, and 11 inner wall of protective case and 14 outer wall of copper pipe are interference fitted, and the protective case 11 is by exhausted
Edge heat-barrier material is made.
The fixing axle of the rope sheave central axis and change speed pinion 7 is fixed on the wall by external frame.
The present invention is adapted to the safe escape of skyscraper, can not be normal when crisis situations, the electric system such as fire occurs
It uses, exit passageway is blocked by the intensity of a fire, and escape personnel is transferred to escape hatch, is completed using escape device of the invention
It saves oneself.
The left side escape compartment 10 and 4 initial position of right side escape compartment of rescue cabin module of the present invention are one on the other, with left side
Escape compartment 10 under, right side escape compartment 4 it is upper carry out for example, when escape personnel enter right side escape compartment 4 escape when, right side
The bootstrap block 16 of escape compartment 4 can glide along three escape compartment sliding rails 6 on right side escape well 1, while pull the right side above it
Rope 3, so that double track rope sheave 5 rotates；It is gradually increasingly grown what right rope 3 was put while double track rope sheave 5 rotates, so that
Right side escape compartment 4 glides；Simultaneously make left rope 9 gradually take-up and make left side escaping cabin 10 move upwards；Double track rope sheave 5 moves
While drive speed change gear wheel 8 to rotate, since speed change gear wheel 8 and two change speed pinions 7 engage, be based on teeth number difference, meeting
So that the faster rotational speed of change speed pinion 7, and then the cam 13 being firmly connected with it is driven by the fixing axle of change speed pinion 7
Rotation, and then the cam link 12 connecting with cam 13 is driven to pump, to drive 12 lower end of cam link
Magnet 15 pumps in copper pipe；Since reciprocating motion of the magnet in copper pipe will lead to the continuous change of magnetic flux
Change, induced current can be generated on copper pipe by faraday's theorem, the induced current that it is generated known to Lenz's law can association sense
It answers magnetic field to act on magnet in turn, hinders the movement of magnet, so that it slows, so that right side escape compartment 4 declines
It slows, eventually falls in and complete once to save oneself on the cushion 2 of right side escape bottom.It is reached in above-mentioned right side escape compartment 4
When cushion 2, left side escape compartment 10 is risen at the top of relief well, provides the escape of next wave personnel.
Above-described embodiment is presently preferred embodiments of the present invention, is not a limitation on the technical scheme of the present invention, as long as
Without the technical solution that creative work can be realized on the basis of the above embodiments, it is regarded as falling into the invention patent
Rights protection scope in.
Claims (7)
1. a kind of high building electromagnetic damping escape device, it is characterised in that: subtract including rescue cabin module, change pulley module and magnetic damping
Fast piston modules,
The rescue storehouse module includes that the left side escape well being symmetrical set and right side escape well (1), setting are escaped in left side
Left side escape compartment (10), setting inside well are escaped in the internal right side escape compartment (4) of right side escape well (1), setting in left side
It is respectively provided on three sides of the cushion (2) of well and right side escape well (1) bottom, the left side escape well and inside escape well
There is escape well sliding rail (6), three matched with the escape well sliding rail (6) in left side escape well are provided on left side escape compartment (10)
A bootstrap block (16), escape well sliding rail (6) phase that left side escape compartment (10) is escaped in well by three bootstrap blocks (16) with left side
It is slided up and down with the escape well sliding rail (6) in well that can escape along left side is merged；It is provided on the right side escape compartment (4) and the right side
Three bootstrap blocks (16) that escape well sliding rail (6) in side escape well (1) matches, right side escape compartment (4) pass through three guidance
Block (16) matches with the escape well sliding rail (6) in right side escape well (1) to be merged and can slide along the escape well in right side escape well (1)
Rail (6) slides up and down；
The change pulley module includes double track rope sheave (5), rope sheave central axis, speed change gear wheel (8), change speed pinion (7), cam
(13) and rope, the double track rope sheave (5) and speed change gear wheel (8) are each attached to rope sheave central axis, the both ends of rope sheave central axis
On the metope of fixed rescue storehouse module upper end, the rope includes left rope (9) and right rope (3), on the double track rope sheave (5)
Be provided with twice rope groove, one end of left rope (9) is fixed on a wherein rope groove for double track rope sheave (5), left rope (9) it is another
One end connection left side escape compartment (10), one end of right rope (3) are fixed on another rope groove of double track rope sheave (5), right rope
(3) other end connection right side escape compartment (4), one when the left side escape compartment (10) and right side escape compartment (4) initial position
Topmost positioned at rescue storehouse module, another is located at the bottom of rescue storehouse module；Two change speed pinions (7) are big with speed change
The engagement of gear (8) case, and cam (13) are further fixed in the fixing axle of two change speed pinions (7)；
The magnetic damping deceleration piston modules include cam link (12), magnet (15), copper pipe (14) and protective case (11), described
Magnetic damping deceleration piston modules are provided with symmetrical a pair, the cam link (12) of two magnetic damping deceleration piston modules
Upper end is separately connected two cams (13) fixed in the fixing axle of two change speed pinions (7), the lower end of cam link (12)
It connects magnet (15), the magnet (15) is cylindrical and setting is internal in copper pipe (14), the peripheral surface and copper of magnet (15)
The inner wall clearance fit of (14) is managed, the magnet (15) of cam link (12) lower end is under the drive of cam (13) along copper pipe (14)
It moves up and down；Protective case (11) are enclosed with outside the copper pipe (14).
2. a kind of high building electromagnetic damping escape device according to claim 1, it is characterised in that: the left side escape compartment
(10) it is made with right side escape compartment (4) of light aluminum alloy material.
3. a kind of high building electromagnetic damping escape device according to claim 1, it is characterised in that: the rope is by high temperature resistant
Material is made.
4. a kind of high building electromagnetic damping escape device according to claim 1, it is characterised in that: the left side escape compartment
(10) and on right side escape compartment (4) it is provided with hatch door, hatch door is opened and closed by the way of machinery folding.
5. a kind of high building electromagnetic damping escape device according to claim 1, it is characterised in that: left side escape well and
The height of right side escape well (1) is identical as story height, the rope lengths and left side escape compartment (10) or right side escape compartment (4)
The sum of height it is identical as story height, the length of the copper pipe (14) is much smaller than story height.
6. a kind of high building electromagnetic damping escape device according to claim 1, it is characterised in that: the protective case (11) is in
Pipe dress, protective case (11) inner wall and copper pipe (14) outer wall are interference fitted, and the protective case (11) is made of insulated heat material.
7. a kind of high building electromagnetic damping escape device according to claim 1, it is characterised in that: the rope sheave central axis and
The fixing axle of change speed pinion (7) is fixed on the wall by external frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276499.1A CN110327556A (en) | 2019-04-08 | 2019-04-08 | A kind of high building electromagnetic damping escape device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276499.1A CN110327556A (en) | 2019-04-08 | 2019-04-08 | A kind of high building electromagnetic damping escape device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110327556A true CN110327556A (en) | 2019-10-15 |
Family
ID=68139278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910276499.1A Pending CN110327556A (en) | 2019-04-08 | 2019-04-08 | A kind of high building electromagnetic damping escape device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110327556A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097110A (en) * | 2019-12-21 | 2020-05-05 | 宋延升 | High-rise building safety escape device |
| CN111840834A (en) * | 2020-07-23 | 2020-10-30 | 湖南理工学院 | Escape equipment with speed sensing control |
| CN112426636A (en) * | 2020-10-22 | 2021-03-02 | 山东鸣迅智能科技有限公司 | Quick escape device suitable for building is intelligent |
| CN113101554A (en) * | 2021-04-15 | 2021-07-13 | 陈沐希 | Intelligent high-rise escape quick-falling magnetic ladder |
| CN114955776A (en) * | 2022-06-21 | 2022-08-30 | 中铁建工集团有限公司 | Super high-rise escape device and application method thereof |
| CN115531754A (en) * | 2022-10-09 | 2022-12-30 | 安徽工程大学 | Permanent magnet vibration reduction lifesaving auxiliary platform based on fire-fighting air cushion |
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| CN107881861A (en) * | 2017-11-15 | 2018-04-06 | 中原利达铁路轨道技术发展有限公司 | A kind of electromagnetic damping shock-absorption backing plate |
| CN109260613A (en) * | 2018-09-29 | 2019-01-25 | 天津润木科技有限公司 | A kind of high level linear descending escape device |
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| US20090014242A1 (en) * | 2007-07-12 | 2009-01-15 | Haishan Tang | Wirelessly controlled fire escape devices |
| CN101518675A (en) * | 2008-02-29 | 2009-09-02 | 白孝林 | High-rise building escape equipment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097110A (en) * | 2019-12-21 | 2020-05-05 | 宋延升 | High-rise building safety escape device |
| CN111097110B (en) * | 2019-12-21 | 2020-11-27 | 福建省高华建设工程有限公司 | High-rise building safety escape device |
| CN111840834A (en) * | 2020-07-23 | 2020-10-30 | 湖南理工学院 | Escape equipment with speed sensing control |
| CN112426636A (en) * | 2020-10-22 | 2021-03-02 | 山东鸣迅智能科技有限公司 | Quick escape device suitable for building is intelligent |
| CN113101554A (en) * | 2021-04-15 | 2021-07-13 | 陈沐希 | Intelligent high-rise escape quick-falling magnetic ladder |
| CN114955776A (en) * | 2022-06-21 | 2022-08-30 | 中铁建工集团有限公司 | Super high-rise escape device and application method thereof |
| CN114955776B (en) * | 2022-06-21 | 2023-08-15 | 中铁建工集团有限公司 | Super high-rise escape device and application method thereof |
| CN115531754A (en) * | 2022-10-09 | 2022-12-30 | 安徽工程大学 | Permanent magnet vibration reduction lifesaving auxiliary platform based on fire-fighting air cushion |
| CN115531754B (en) * | 2022-10-09 | 2023-10-31 | 安徽工程大学 | Permanent magnet vibration reduction lifesaving auxiliary platform based on fire control air cushion |
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Application publication date: 20191015 |