CN1101708C - Power-free device for rescue from building from fire - Google Patents
Power-free device for rescue from building from fire Download PDFInfo
- Publication number
- CN1101708C CN1101708C CN98102889A CN98102889A CN1101708C CN 1101708 C CN1101708 C CN 1101708C CN 98102889 A CN98102889 A CN 98102889A CN 98102889 A CN98102889 A CN 98102889A CN 1101708 C CN1101708 C CN 1101708C
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- friction pulley
- building
- fire
- rescue
- opposite opened
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Abstract
The present invention relates to an unpowered fire fighting life preserver which comprises a fixed shaft 1, a fixed tray 2, a friction wafer 3, an auxiliary friction wheel 4, a main friction wheel 5, a locking nut 6, a steel cable 7, a split open shell 8, two barrier sheets9, a pressing plate 10, a pinion 11, a gear shaft 12 and a handwheel 13. The unpowered fire fighting life preserver can convert the self weight of an endangered person through an internal force of mechanism into a frictional resistance moment, and the endangered person does not need to adjust the life preserver in the falling process. With the advantages of simple structure and fewer parts, the life preserver can be directly used by all endangered persons with different weights (30 to 100kg) and different body types.
Description
Technical field
The present invention relates to a kind of device for rescue from building from fire, particularly a kind of motorless device for rescue from building from fire.
Background technology
At present, during the accident if high-rise meets accident (as fire), often supply line damages, power supply is cut off, escape way is blocked by pyrotechnics, personnel such as lodging, office in this moment high building during example that can only seek survival in the mode of falling down from the building what is heard is arranged, but its life utmost point of escaping in this way do not have guarantee.Other has a kind of " unpowered constant speed is from falling lifesaving appliance ", the patent No. is 90217497.5, this device has been to want the main wheel of quick rotation to obtain centrifugal resistance hard iron by speed increasing mechanism for script, reach the purpose that reduces the main wheel rotating speed, therefore some contradiction in view of principle have certain limitation on feasibility.
Summary of the invention
The purpose of this invention is to provide a kind of can be without any power, the deadweight that only depends on people in danger makes it reposefully from high-altitude landing a kind of device for rescue from building from fire that escape danger, practical by the conversion of friction mechanism internal force.
The objective of the invention is to be achieved through the following technical solutions:
A kind of power-free device for rescue from building from fire, it is by fixed axis 1, fixed disk 2, friction plate 3, secondary friction pulley 4, main friction pulley 5, steel wire rope 7, opposite opened housing 8, two catch 9, pressing plate 10, pinion 11, gear shaft 12, handwheel 13 is formed, end at fixed axis 1 is with fixed disk 2 successively, friction plate 3, secondary friction pulley 4, by the set helicla flute of the periphery of secondary friction pulley 4, screw an endoporus and be provided with spiral fluted master friction pulley 5, main friction pulley 5 has end top engagement one pinion 11 of profile of tooth, pinion 11 links to each other by hand wheel shaft 12 handwheel 13 outer with being contained in opposite opened housing 8 that sky is enclosed within on the pinion, the other end of main friction pulley 5 is with two catch 9, between two catch 9, be wound with steel wire rope 7, one end of steel wire rope 7 is fixed on the end face of main friction pulley 5 these ends with pressing plate 10, the other end stretches out outside the opposite opened housing 8, then with the other end of locking nut 6 by fixed axis 1, with secondary friction pulley 4 lockings, again opposite opened housing 8 is inserted in from the two ends of fixed axis 1 and fixes.
The outer surface of described main friction pulley 5 is a gear shape; The two ends of fixed axis 1 are respectively equipped with screw thread 14,15,16, and locking nut 6 screws in screw thread 15 and secondary friction pulley 4 lockings.
One end of described opposite opened housing 8 middle part is connected with the key that is connected between fixed axis 1, the fixed disk 2, and several or several screws of opposite opened housing 8 usefulness are connected to an obturator, and its screw that is connected to the two ends of fixed axis 1 is connected.
Described steel wire rope 7 stretches out opposite opened housing 8 outer terminations a hook 17.
Described hand wheel shaft 12 is connected for screw with handwheel 13.
Described opposite opened housing 8 is rectangle, square, rhombus, also can be other shape.
Described main friction pulley 5 is wound with the cylindrical diameter of an end of steel wire rope 7 can determine the number of plies not more than two layers that steel wire rope 7 is superimposed together according to the height of floor.
Described catch 9 also can be one.
The material of described opposite opened housing 8 is a Birmasil, also can be spheroidal graphite cast-iron.
Owing to adopted said structure, the present invention can make the effective conversion generation frictional resistance moment of people's in danger deadweight by mechanism's internal force, guarantee that lifesaving is safe and reliable, the people that need not get into danger in dropping process regulates brucker survival capsule, and have simple in structure, the characteristics that part is few all can directly be used the people in danger of various different weights (30-100 kilogram), build; The protection of the enclosed construction of opposite opened housing 8, it is in-house to prevent that foreign material such as oil, water from immersing, and prevents " wet friction ", " boundary friction " effectively.
Description of drawings
Fig. 1 is a three-dimensional exploded view of the present invention;
Fig. 2 is a front view of the present invention;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the B-B partial sectional view of Fig. 2;
Fig. 5 is the K portion enlarged drawing of Fig. 3;
Fig. 6 is a stereogram of the present invention;
Fig. 7 is the embodiments of the invention schematic diagram.
The specific embodiment
The invention will be further described below in conjunction with embodiment:
As Fig. 1-shown in Figure 7, a kind of power-free device for rescue from building from fire, it is by fixed axis 1, fixed disk 2, friction plate 3, secondary friction pulley 4, main friction pulley 5, steel wire rope 7, opposite opened housing 8, two catch 9, pressing plate 10, pinion 11, gear shaft 12, handwheel 13 is formed, end at fixed axis 1 is with fixed disk 2 successively, friction plate 3, secondary friction pulley 4, by the set helicla flute of the periphery of secondary friction pulley 4, screw an endoporus and be provided with spiral fluted master friction pulley 5, main friction pulley 5 has end top engagement one pinion 11 of profile of tooth, pinion 11 links to each other by hand wheel shaft 12 handwheel 13 outer with being contained in opposite opened housing 8 that sky is enclosed within on the pinion, the other end of main friction pulley 5 is with two catch 9, between two catch 9, be wound with steel wire rope 7, can control the area that steel wire rope 7 rotates like this on axle, one end of steel wire rope 7 is fixed on the end face of main friction pulley 5 these ends with pressing plate 10, to prevent that steel wire rope 7 from coming off in use, the other end stretches out outside the opposite opened housing 8, link to each other with hook 17, then with the screw thread 15 on locking nut 6 screw-in fixed axis 1 other end, with secondary friction pulley 4 lockings, again opposite opened housing 8 is inserted in from the two ends of fixed axis 1 and fixes.The outer surface of main friction pulley 5 is a gear shape; The two ends of fixed axis 1 are respectively equipped with screw thread 14,15,16.One end of opposite opened housing 8 middle part is connected with the key that is connected between fixed axis 1, the fixed disk 2, and several or several screws of opposite opened housing 8 usefulness are connected to an obturator, and it is connected with the screw that is connected to the two ends of dead axle 1.Described hand wheel shaft 12 is connected for screw with handwheel 13.Opposite opened housing 8 is rectangle, square, rhombus, also can be other shape.Main friction pulley 5 is wound with the cylindrical diameter of an end of steel wire rope 7 can determine the number of plies not more than two layers that steel wire rope 7 is superimposed together according to the height of floor.Catch 9 also can be one.The material of opposite opened housing 8 is a Birmasil, also can be spheroidal graphite cast-iron.
During use, people in danger lies in safety belt on the health, hang up rope hook 17, can be from arbitrary extra exit (door, window, balcony) breaks away to fall, during the whereabouts, because the gravitational moment of people's deadweight in danger, at first make the main friction pulley 5 that is wound with steel wire rope do spiral rotation (as the action of fastening nut) on the surface that has the secondary friction pulley 4 of spiral fluted, this moment, the end because of secondary friction pulley 4 was locked by reinforcing in advance, the other end has been close to the end face of friction plate 3, give the moment of friction that stops secondary friction pulley 4 to rotate has also been arranged earlier, guaranteed that main friction pulley 5 at first does spiral rotation and secondary friction pulley 4 can not occur, the phenomenon that main friction pulley 5 rotates on fixed axis 1 synchronously, the result of its helical rotation can produce and make main friction pulley 5 press to the normal force of friction plate 3 (thrust), make fixed disk 2, produced the friction square that stops its relative motion between friction plate 3 and the main friction pulley 5, after main friction pulley 5 is adjacent to friction plate 3, because the effect of gravitational moment, main friction pulley 5 is rotated further under the obstruction of frictional resistance moment on one side, related secondary friction pulley 4 rotates on fixed axis 1 in the lump synchronously on one side, this moment, main friction pulley 5 was in a basic balance and be slightly less than gravitational moment with the frictional resistance moment sum of secondary friction pulley 4 and gravitational moment, so, the rotating speed of main friction pulley 5 descends greatly, the end speed that descends can be according to different deadweights, different height is controlled at per second 0.5-1.8 rice, and people then in danger just can escape danger in the landing of safety and steady ground.In addition, in dangerous situation, as the restricted number because of brucker survival capsule, then escape danger after the people escape danger first, personnel can pull out handwheel 13 backs and rotate in dangerous situation, and because of the engagement of free gear 11, it is reusable to pack up steel wire rope 7.Brucker survival capsule can be fixed on when not using on the exit or wall top of easy escape.
Claims (9)
1, a kind of power-free device for rescue from building from fire, it is characterized in that: it is by fixed axis (1), fixed disk (2), friction plate (3), secondary friction pulley (4), main friction pulley (5), steel wire rope (7), opposite opened housing (8), two catch (9), pressing plate (10), pinion (11), gear shaft (12), handwheel (13) is formed, end at fixed axis (1) is with fixed disk (2) successively, friction plate (3), secondary friction pulley (4), the set helicla flute of periphery by secondary friction pulley (4), screw an endoporus and be provided with spiral fluted master friction pulley (5), main friction pulley (5) has end top engagement one pinion (11) of profile of tooth, pinion (11) links to each other by hand wheel shaft (12) handwheel (13) outer with being contained in opposite opened housing (8) that sky is enclosed within on the pinion, the other end of main friction pulley (5) is with two catch (9), between two catch (9), be wound with steel wire rope (7), one end of steel wire rope (7) is fixed on the end face of this end of main friction pulley (5) with pressing plate (10), the other end stretches out outside the opposite opened housing (8), then with the other end of locking nut (6) by fixed axis (1), with secondary friction pulley (4) locking, again opposite opened housing (8) is inserted in from the two ends of fixed axis (1) and fixes.
2, by the described power-free device for rescue from building from fire of claim 1, the outer surface that it is characterized in that described main friction pulley (5) is a gear shape; The two ends of fixed axis (1) are respectively equipped with screw thread (14), (15), (16), and locking nut (6) screws in screw thread (15) and secondary friction pulley (4) locking.
3, by the described power-free device for rescue from building from fire of claim 1, it is characterized in that the end middle part of described opposite opened housing (8) is connected with the key that is connected between fixed axis (1), the fixed disk (2), opposite opened housing (8) is connected to an obturator with several or several screws, and its screw that is connected to the two ends of fixed axis (1) is connected.
4,, it is characterized in that described steel wire rope (7) stretches out the outer termination of opposite opened housing (8) one hook (17) is arranged by the described power-free device for rescue from building from fire of claim 1.
5, by the described power-free device for rescue from building from fire of claim 1, it is characterized in that described hand wheel shaft (12) is connected for screw with handwheel (13).
6,, it is characterized in that described opposite opened housing (8) for rectangle, square, rhombus, also can be other shape by the described power-free device for rescue from building from fire of claim 1.
7,, it is characterized in that the cylindrical diameter that described main friction pulley (5) is wound with an end of steel wire rope (7) can determine the number of plies not more than two layers that steel wire rope (7) is superimposed together according to the height of floor by the described power-free device for rescue from building from fire of claim 1.
8, by the described power-free device for rescue from building from fire of claim 1, it is characterized in that described catch (9) also can be one.
9, by the described power-free device for rescue from building from fire of claim 1, the material that it is characterized in that described opposite opened housing (8) is a Birmasil, also can be spheroidal graphite cast-iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98102889A CN1101708C (en) | 1998-07-20 | 1998-07-20 | Power-free device for rescue from building from fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98102889A CN1101708C (en) | 1998-07-20 | 1998-07-20 | Power-free device for rescue from building from fire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1242238A CN1242238A (en) | 2000-01-26 |
| CN1101708C true CN1101708C (en) | 2003-02-19 |
Family
ID=5217631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98102889A Expired - Fee Related CN1101708C (en) | 1998-07-20 | 1998-07-20 | Power-free device for rescue from building from fire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1101708C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671317A (en) * | 2012-05-24 | 2012-09-19 | 胡业忠 | Emergency escape device used in high-rise building |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2074190U (en) * | 1990-08-09 | 1991-04-03 | 孟念军 | Powerless constant-speed self-lowering life-saving device |
-
1998
- 1998-07-20 CN CN98102889A patent/CN1101708C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2074190U (en) * | 1990-08-09 | 1991-04-03 | 孟念军 | Powerless constant-speed self-lowering life-saving device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1242238A (en) | 2000-01-26 |
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |