CN101766871B

CN101766871B - Ball-type self-buoyant apparatus for fire in high buildings

Info

Publication number: CN101766871B
Application number: CN2008101899279A
Authority: CN
Inventors: 熊雄; 刘郁葱
Original assignee: Xiangtan University
Current assignee: Xiangtan University
Priority date: 2008-12-30
Filing date: 2008-12-30
Publication date: 2011-05-18
Anticipated expiration: 2028-12-30
Also published as: CN101766871A

Abstract

The invention discloses a ball-type self-buoyant apparatus for fire in high buildings, relates to the necessary (agricultural, light and medical) fields of human beings and provides the ball-type self-buoyant apparatus for fire in high buildings which consists of a bracket (5) and a double-layer balloon (28). The bracket (5) is fixed on a windowsill (18) through movable slots (14) and (16) and positioning screw caps (13) and (15); the bracket (5) is provided with rotary hooks (1) and (4), a stay cord (27) and a rope ladder (25); the double-layer balloon (28) is made from fire resistant fiber and the inner and outer surfaces of the double-layer balloon (28) are coated with airtight and heat insulating dope; the upper end of the double-layer balloon (28) is provided with an inlet/outlet (23) and is also provided with three support pillars (26), (30) and (31); the two bottom surfaces of the support pillar are sealed and the inner wall of the support pillar is provided with a small hole; a fixing band (29) is arranged above the lower support pillar (30); and the double-layer balloon (28) is provided with an air inflation hole (22). Evacuees enter the balloon through the rope ladder and pull the stay cord (27), and slings (20) and (21) leave the rotary hooks (1) and (4). The double-layer balloon (28) carrying the evacuees accelerates and falls to the ground at a constant speed. Since a double-layer air inflation structure is designed, the impact force is reduced and the safety is ensured. The primary evacuees connect the stay cord (27) and the slings (20) and (21) to pull a second batch of personnel onto the double-layer balloon (28) for continuous evacuation. Furthermore, if the installation of the apparatus is not allowed or too late on a fire scene, the evacuees can rapidly enter the balloon from the inlet/outlet (23) and close an inner door to gain more time for waiting for excavation by breathing the remaining air in the balloon.

Description

Ball-type self-buoyant apparatus for fire in high buildings

Technical field: human lives necessary (farming, light, doctor)

Background technology: the fast development of fire-fighting emergent rescue outfit ability and skyscraper is seriously unbalance, and kind is single at present.The aerial ladder car adopts the autocrane structure, bulky, also need to hand over leg and balance before the operation, heave amplitude is big, and flexibility and stability all have restriction to a certain degree, and the building that quite a few is arranged is owing to reasons such as building plans, the architecture against regulations, traffic congestions, in case breaking out of fire dangerous situation, even in time report to the police, fire fighting truck also is difficult to even can not be close, thereby incurs loss through delay rescue opportunity.In addition, the present stage maximum rescue of aerial ladder car highly is about 50 meters, and for higher fire of high-rise building, even the The coast is clear all around of building, motor ladder is also powerless.Air cushion also uses more in fire rescue, but only is applicable to low floor, for skyscraper, is easy to cause the secondary injury, does not generally advocate employing.The high-building self-help rope device also can be used for fire oneself rescue, but for disadvantaged group such as old, young, sick, residual and pregnant woman certain limitation is arranged, and rescue efficiency also is its shortcoming than the injury that can be subjected to poison gas and high temperature in low and the evacuation process.The air bag-type life saving device for high building fire use utilization makes trapped personnel withdraw the scene of fire from the cylindrical airbag that lifesaving platform is connected to ground, but be subjected to story height, ground complex situations and downstairs resident family stretch out the influence of wall barrier and situation that airbag can not normally be opened happens occasionally, set-up time length, complex structure, bulky, cost is high also is its shortcoming, so seldom adopt in fire rescue.Therefore it is very necessary to design a kind of simple in structure, easy to operate, safe and effective, cheap life saving device for high building fire use.

Summary of the invention: fire-fighting rescue equipment is single at present, be higher than the lower and situation that traffic is obstructed around the building of 50 meters scene of fire or floor for floor, the aerial ladder car all is difficult to handle, ball-type self-buoyant apparatus for fire in high buildings has well solved this difficult problem, for the shortcoming of other fire oneself lifesaving appliance and limitation to a certain degree breakthrough is arranged also in addition.The personnel that withdraw use support and the slide plate that is fixed on the windowsill, enter in the double-deck aerating ballon by rope ladder, at first health is fixed on the fixed band in the ball, pull stay cord then, lanyard leaves Rotary hanging hook immediately, the air drag acceleration earlier down that the Double-layer balloon that personnel are withdrawn in lift-launch is subjected to gravity and is directly proportional with movement velocity, then at the uniform velocity drop to ground.If the gross mass of people and Double-layer balloon is m, the resistance coefficient of Double-layer balloon and air is u, and displacement is s, and speed is v, and acceleration of gravity is g, then can set up following ODE:

V (0)=0, s (0)=0. wherein t represents the time.Its separate into:

Thereby

This formula explanation, no matter people and Double-layer balloon begin from how high place to fall, the maximal rate when landing is

Establishing the maximum impact force of people when landing again is F, then by F Δ t=m Δ v, has This formula explanation can increase u Δ t and reduce F.Square being directly proportional of u and Double-layer balloon outer radius of sphere increases outer radius of sphere and can reduce impulsive force F, simultaneously, balloon is designed to double-decker, between the interior ectosphere sealing and be full of air, increased Δ t when withdrawing personnel and Double-layer balloon colliding surface, reduced impulsive force F greatly.Therefore always can control the size of impulsive force F by the radius size of ectosphere in the debugging Double-layer balloon, guarantee being perfectly safe of the personnel that withdraw.The personnel that withdraw earlier connect stay cord and lanyard, and second crowd of personnel pulls on Double-layer balloon, can continue to withdraw the scene of fire again.In addition, if the scene of fire does not allow or has little time equipment such as mounting bracket and Double-layer balloon at all, ball-type self-buoyant apparatus for fire in high buildings also has emergency measure, the personnel that withdraw this moment can be in the extremely short time enter endosphere by the gateway of Double-layer balloon, shut the gateway inside door, because Double-layer balloon is made and is scribbled airtight and thermal insulation coating by fire resistance fibre, utilize air residual in the Double-layer balloon endosphere, the personnel of withdrawing can win the quality time that waits for rescue, and improve the possibility of being rescued greatly.

Description of drawings: the ball-type self-buoyant apparatus for fire in high buildings of forming by support (5) and Double-layer balloon (28), support (5) is by movable draw-in groove (14,16) with positioning screw cap (13,15) be fixed on the windowsill (18), main spandrel girder (7 is arranged on the support (5), 11), inferior spandrel girder (6,9), slide plate (10) is installed on the support (5), inferior spandrel girder (6,9) outer end is equipped with and can makes hook (1,4) swing roller (17 that rotates freely around its axle center, 19), the cylindrical rope pipe (2) of crossing of hollow is equipped with in the outer end of slide plate (10), cylindrical rope pipe (2) center of crossing has an aperture that " Y " shape stay cord (27) is passed through towards the ground direction, hook (1,4) upper end connects " Y " shape stay cord (27), " Y " shape stay cord (27) extends in the Double-layer balloon (28) towards the aperture of the ground direction gateway (23) by Double-layer balloon (28) by cylindrical rope pipe (2) and the center thereof crossed always, Double-layer balloon (28) is made by fire resistance fibre and surfaces externally and internally scribbles airtight coating and thermal insulation coating, the rope ladder (25) that is connected on the crossbeam (3) also is installed on the support, rope ladder (25) extends in the Double-layer balloon (28) by gateway (23) always, the upper end of Double-layer balloon (28) has a round table-like gateway (23) that can allow the personnel of withdrawing pass in and out Double-layer balloon (28) smoothly, the inwall of gateway (23) is fixed with towards the outer end and is suspended on hook (1,4) lanyard (20 on, 21), three fixedly round table-like support columns (26 of endosphere and ectosphere relative position also are installed on the Double-layer balloon (28), 30,31), each support column (26,30,31) two bottom surface sealings, respectively have an aperture on the inwall, can make Double-layer balloon (28) and three support columns (26,30,31) be interconnected, the top that is positioned at the support column (30) under the Double-layer balloon (28) is equipped with the fixed band (29) of fixedly withdrawing personnel, and Double-layer balloon (28) is gone up also has air-filled pore (22) and inside door (24).

The specific embodiment: support (5) is welded by steel profile, main spandrel girder (7,11) and time spandrel girder (6,9) all adopt round steel, movable draw-in groove (14,16) adopts iron casting, supporting point (8,12) on the main spandrel girder (7,11) leaves outer silk near windowsill (18) direction, length is 50cm, away from the long 130cm of windowsill (18) direction, the long 40cm of crossbeam (3), slide plate (10) is 20 degree with horizontal plane angle.Tightrope on lanyard (20,21), " Y " shape stay cord (27) and the rope ladder (25) is all made by fire resistance fibre.Double-layer balloon (28) (containing gateway (23) and three support columns (26,30,31)) all adopts fire resistance fibre to make, surfaces externally and internally all scribbles airtight coating and thermal insulation coating, the radius of the interior ectosphere of Double-layer balloon (28) is respectively 80cm and 130cm, the outer port radius of gateway (23) is 40cm, interior port radius is 30cm, the size dimension of support column (26,30,31) is identical, and inside and outside port radius is respectively 15cm and 25cm.Inside door (24) is by fire-retardant magic strap or magnetic and Double-layer balloon (28) sealing.

Claims

1. ball-type self-buoyant apparatus for fire in high buildings of forming by support (5) and Double-layer balloon (28), it is characterized in that: support (5) is by movable draw-in groove (14,16) with positioning screw cap (13,15) be fixed on the windowsill (18), main spandrel girder (7 is arranged on the support (5), 11), inferior spandrel girder (6,9), slide plate (10) is installed on the support (5), inferior spandrel girder (6,9) outer end is equipped with and can makes hook (1,4) swing roller (17 that rotates freely around its axle center, 19), the cylindrical rope pipe (2) of crossing of hollow is equipped with in the outer end of slide plate (10), cylindrical rope pipe (2) center of crossing has an aperture that " Y " shape stay cord (27) is passed through towards the ground direction, hook (1,4) upper end connects " Y " shape stay cord (27), " Y " shape stay cord (27) extends in the Double-layer balloon (28) towards the aperture of the ground direction gateway (23) by Double-layer balloon (28) by cylindrical rope pipe (2) and the center thereof crossed always, Double-layer balloon (28) is made by fire resistance fibre and surfaces externally and internally scribbles airtight coating and thermal insulation coating, the rope ladder (25) that is connected on the crossbeam (3) also is installed on the support, rope ladder (25) extends in the Double-layer balloon (28) by gateway (23) always, the upper end of Double-layer balloon (28) has a round table-like gateway (23) that can allow the personnel of withdrawing pass in and out Double-layer balloon (28) smoothly, the inwall of gateway (23) is fixed with towards the outer end and is suspended on hook (1,4) lanyard (20 on, 21), three fixedly round table-like support columns (26 of endosphere and ectosphere relative position also are installed on the Double-layer balloon (28), 30,31), each support column (26,30,31) two bottom surface sealings, respectively have an aperture on the inwall, can make Double-layer balloon (28) and three support columns (26,30,31) be interconnected, the top that is positioned at the support column (30) under the Double-layer balloon (28) is equipped with the fixed band (29) of fixedly withdrawing personnel, and Double-layer balloon (28) is gone up also has air-filled pore (22) and inside door (24).