CN111472683A - Safety ladder for evacuation - Google Patents
Safety ladder for evacuation Download PDFInfo
- Publication number
- CN111472683A CN111472683A CN202010237406.7A CN202010237406A CN111472683A CN 111472683 A CN111472683 A CN 111472683A CN 202010237406 A CN202010237406 A CN 202010237406A CN 111472683 A CN111472683 A CN 111472683A
- Authority
- CN
- China
- Prior art keywords
- shaft
- support frame
- airborne
- rope
- damping
- 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
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
- E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
- E06C9/08—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/18—Devices for preventing persons from falling
- E06C7/185—Devices providing a back support to a person on the ladder, e.g. cages
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/18—Devices for preventing persons from falling
- E06C7/186—Rail or rope for guiding a safety attachment, e.g. a fall arrest system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention discloses an evacuation safety ladder, which comprises a support frame, a plurality of sections of climbing ladders fixed on the side surface of the support frame in an end-to-end connection manner and an airborne channel fixed on the side part of the support frame, wherein the climbing ladders are arranged on the side surface of the support frame in an end-to-end connection manner; the top of the support frame is provided with a hoisting device for suspending cargos; a cargo lifting channel for vertically lifting the cargo is arranged in the middle of the support frame; an airborne safety backpack is arranged above the airborne channel; the air-drop safety backpack comprises a backpack body with at least two shoulder straps, an air-drop rope arranged in the backpack body and a damping device for providing a damping effect for the air-drop rope to extend out of the backpack body; the damping device comprises a reel for winding the airborne rope, a speed increaser for amplifying the rotating speed of the reel and a rotary damper for applying damping action to an output shaft of the speed increaser; the invention is used for rapidly evacuating people in emergency accidents of multi-story buildings such as superstores and the like.
Description
Technical Field
The invention relates to the field of safety engineering equipment, in particular to an evacuation safety ladder.
Background
With the rapid development of city construction, superstores are more and more common inside cities. However, the fire rescue problem of the multi-storey building in the market is gradually raised, and due to the fact that the multi-storey building is high in floor height, large in size, dense in people, few in evacuation stairs, and difficult to evacuate people quickly in case of emergency such as fire, earthquake and the like, the consequence is unreasonable, some fire escape tools such as fire escape rope ladders, fire-proof emergency life saving ropes and steel wire ropes gradually appear in the market at present, and the products have different defects.
Therefore, the emergency ladder for personnel evacuation in the emergency accidents of multi-story buildings such as superstores is urgently needed to be developed, and the personnel can be rapidly evacuated.
Disclosure of Invention
The evacuation safety ladder comprises a support frame, a plurality of sections of climbing ladders which are fixed on the side surface of the support frame and connected end to end, and an airborne passage fixed on the side part of the support frame; the top of the support frame is provided with a hoisting device for suspending cargos; a cargo lifting channel for vertically lifting the cargo is arranged in the middle of the support frame; an airborne safety backpack is arranged above the airborne channel;
the air-drop safety backpack comprises a backpack body with at least two shoulder straps, an air-drop rope arranged in the backpack body and a damping device for providing a damping effect for the air-drop rope to extend out of the backpack body; the damping device comprises a reel for winding the airborne rope, a speed increaser for amplifying the rotating speed of the reel and a rotary damper for applying damping action to an output shaft of the speed increaser.
Further, the speed increaser includes a first shaft, a second shaft, and a third shaft parallel to the spool; and the reel and the first shaft, the first shaft and the second shaft and the third shaft are all driven by a speed-increasing gear pair.
Furthermore, the rotary damper comprises a damper shell which is externally sleeved on the third shaft and forms a sealed space inside, gear teeth which are fixed on the surface of the third shaft and are positioned in the sealed space, damping holes which are distributed on the tooth surfaces of the gear teeth, magnetorheological fluid filled in the sealed space and an excitation coil which is wound outside the damper shell.
Further, the rotary damper further comprises a direct current generator; the input shaft of the direct current generator is in coaxial transmission connection with the third shaft; and the electric energy output end of the direct current generator is connected to the magnet exciting coil.
Furthermore, two supporting platforms for placing goods and a sliding guide rail for guiding the two supporting platforms are arranged at the top of the supporting frame; and a driving motor is arranged above the supporting tables and drives the two supporting tables to be separated from each other through a traction steel rope.
Further, three openings of hooks are arranged at the outer end of the airborne rope; the end part of the third shaft is provided with a reverse handle for driving the reverse handle.
The invention has the beneficial effects that: according to the evacuation safety ladder, when emergency situations such as fire disaster occur, people can be rapidly evacuated through the ladder; in addition, in order to improve the evacuation speed, an airborne passage is also arranged for people to carry out airborne landing; when airborne, the personnel wear the airborne safety backpack and pull out and fix the airborne rope above the airborne passage; in the process of personnel airborne, the rotating damping device is used for controlling the landing speed of the personnel; the rotary damping device adopts magnetorheological fluid as a damping medium, so that the airborne speed can be effectively controlled by controlling the size of a magnetic field, and personnel are prevented from being injured in the airborne process.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of the present invention;
FIG. 3 is a schematic structural view of the airborne safety backpack of the present invention;
fig. 4 is a schematic view of the internal structure of the airborne safety backpack of the present invention.
Detailed Description
Example one
As shown in the figure, the evacuation safety ladder of the embodiment includes a support frame 1, a plurality of sections of climbing ladders 2 fixed on the side surface of the support frame 1 and connected end to end, and an airborne channel 7 fixed on the side of the support frame 1; the top of the support frame 1 is provided with a hoisting device 3 for suspending goods; a cargo lifting channel for vertically lifting the cargo is arranged in the middle of the support frame 1; an airborne safety backpack is arranged above the airborne channel 7;
the support frame 1 is a metal frame structure, and the size of the support frame is determined according to the height of a building and the evacuation flow;
the climbing ladder 2 can be in an end-to-end multi-section structure or a spiral structure, the climbing ladder 2 is welded and fixed on the side part of the support frame 1, and the outer side of the climbing ladder 2 is provided with a handrail;
the airborne passage 7 is of a cylindrical structure, the inner diameter of the airborne passage is required to accommodate at least one person to land, and the wall of the cylinder is of a metal cage structure; an airborne platform 5 is fixedly arranged at the top of the support frame 1, an airborne channel 7 is fixed at the bottom of the airborne platform 5, and a manhole arranged on the airborne platform 5 is communicated with the airborne channel 7; of course, a straight ladder stand 6 of vertical equipment can be arranged in the air-drop passage 7, and the side wall of the space platform should be provided with a fence;
the hoisting device 3 comprises a hanging bracket 4 fixed at the top of the support frame 1, a hoisting motor arranged on the hanging bracket 4 and a hook driven by the hoisting motor; the support frame 1 is of a metal frame structure, and a lifting channel is naturally formed in the support frame;
the airborne safety backpack comprises a backpack body with at least two shoulder straps, an airborne rope 42 arranged in the backpack body and a damping device for providing damping action for the airborne rope 42 extending out of the backpack body; the backpack body is made of hard materials such as metal or high polymer materials, and the damping device comprises a reel 43 for winding the airborne rope 42, a speed increaser for amplifying the rotating speed of the reel 43, and a rotary damper for damping the output shaft of the speed increaser.
In the present embodiment, the speed increaser comprises a first shaft, a second shaft 45 and a third shaft parallel to the spool 43; the transmission between the reel 43 and the first shaft 411, between the first shaft 411 and the second shaft 45, and between the second shaft 45 and the third shaft is realized through a speed-increasing gear pair 44; therefore, the speed increaser realizes three-level speed increase, and further can amplify the damping effect generated by the damper at the reel 43.
In this embodiment, the rotary damper includes a damper housing 49 externally fitted to the third shaft and forming a sealed space therein, gear teeth 48 fixed to the surface of the third shaft and located in the sealed space, damping holes distributed on the tooth surfaces of the gear teeth 48, magnetorheological fluid filled in the sealed space, and an excitation coil 47 wound outside the damper housing 49; the third shaft passes through the damper housing 49 in the axial direction, and a seal should be provided between the end surface of the housing 49 and the third shaft to ensure the sealing property inside the housing 49; when the third shaft rotates, the gear teeth 48 are driven to rotate in the sealed space, and the magnetorheological fluid is stirred to form a damping effect; the magnet exciting coil 47 is used for exerting a magnetic field effect on the magnetorheological fluid, when the magnetic field intensity is high, the viscosity of the magnetorheological fluid is improved, and the damping effect of the magnetorheological fluid on the third shaft is also improved, so that the damping force of the damper to the falling rope 42 when the falling rope extends out can be controlled by controlling the intensity of the magnetic field, and the falling speed of a user can be controlled; the power supply current of the magnet exciting coil 47 can be controlled by a controller such as a single chip microcomputer, a distance sensor can be arranged at the bottom of the backpack body and used for collecting the distance between the backpack and the ground, and when the distance is long, the controller controls to cut off the power supply to supply power to the magnet exciting coil 47, so that a user can quickly land; when the user is nearer to ground, the controller control power to the power supply to excitation coil 47, improve the damping effect of attenuator, make the user can reduce the landing speed by a wide margin, avoid the injury.
In a preferred embodiment, the rotational damper further comprises a dc generator 410; the input shaft of the direct current generator 410 is in coaxial transmission connection with the third shaft; the electric energy output end of the direct current generator 410 is connected to the magnet exciting coil 47; the principle of the dc generator 410 is the same as the prior art; in this embodiment, power is generated by using energy generated by the user's landing, and the generated power is inputted to the exciting coil 47; when the landing speed of a user is low, the rotating speed of the third shaft is also low, the current generated by the generator 410 is low, the damping effect generated by the rotary damper is low, and the landing speed can be further increased by the user; when the landing speed of a user is high, the rotating speed of the third shaft is also high, the current generated by the generator 410 is high, the damping effect generated by the rotary damper is high, and the landing speed can be further reduced by the user; in the scheme, the power supply and the controller are taken out, and the landing speed is adjusted by directly feeding back the electric energy by using the rotating speed of the scroll 43.
In a preferred embodiment, two support tables 1 for placing goods and a sliding guide rail 12 for guiding the two support tables 1 are arranged at the top of the support frame 1; a driving motor is arranged above the supporting tables 1 and drives the two supporting tables 1 to be separated from each other through traction steel ropes; when disaster relief goods (such as fire extinguishers) need to be transported into a building, the driving motor drives the two supporting platforms 1 to be separated, so that the goods can reach the upper part of the supporting platform 1 through the space between the two supporting platforms 1 under the lifting of the lifting device 3, then the two supporting platforms 1 reset, and the lifting device 3 puts the goods down on the supporting platform 1.
In a preferred embodiment, the outer end of the airborne rope 42 is provided with a three-opening hook 41; the end part of the third shaft is provided with a reverse handle 46 for driving the reverse handle, and after the use is finished, the airborne rope 42 can be retracted through the handle 46.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and variations; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (6)
1. An evacuation safety ladder, its characterized in that: the climbing ladder comprises a support frame, a plurality of sections of climbing ladders which are fixed on the side surface of the support frame and connected end to end, and an airborne passage fixed on the side part of the support frame; the top of the support frame is provided with a hoisting device for suspending cargos; a cargo lifting channel for vertically lifting the cargo is arranged in the middle of the support frame; an airborne safety backpack is arranged above the airborne channel;
the air-drop safety backpack comprises a backpack body with at least two shoulder straps, an air-drop rope arranged in the backpack body and a damping device for providing a damping effect for the air-drop rope to extend out of the backpack body; the damping device comprises a reel for winding the airborne rope, a speed increaser for amplifying the rotating speed of the reel and a rotary damper for applying damping action to an output shaft of the speed increaser.
2. An evacuation safety ladder according to claim 1, wherein: the speed increaser comprises a first shaft, a second shaft and a third shaft which are parallel to the reel; and the reel and the first shaft, the first shaft and the second shaft and the third shaft are all driven by a speed-increasing gear pair.
3. An evacuation safety ladder according to claim 1, wherein: the rotary damper comprises a damper shell, gear teeth, damping holes, magnetorheological fluid and a magnet exciting coil, wherein the damper shell is sleeved on the third shaft in a sleeved mode, a sealed space is formed inside the damper shell, the gear teeth are fixed on the surface of the third shaft and located in the sealed space, the damping holes are distributed on the tooth surfaces of the gear teeth, the magnetorheological fluid is filled in the sealed space, and the magnet exciting coil is wound outside the damper shell.
4. An evacuation safety ladder according to claim 3, wherein: the rotary damper further comprises a direct current generator; the input shaft of the direct current generator is in coaxial transmission connection with the third shaft; and the electric energy output end of the direct current generator is connected to the magnet exciting coil.
5. An evacuation safety ladder according to claim 1, wherein: the top of the support frame is provided with two support tables for placing goods and a sliding guide rail for guiding the two support tables; and a driving motor is arranged above the supporting tables and drives the two supporting tables to be separated from each other through a traction steel rope.
6. An evacuation safety ladder according to claim 5, wherein: the outer end of the airborne rope is provided with three hooks; the end part of the third shaft is provided with a reverse handle for driving the reverse handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010237406.7A CN111472683A (en) | 2020-03-30 | 2020-03-30 | Safety ladder for evacuation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010237406.7A CN111472683A (en) | 2020-03-30 | 2020-03-30 | Safety ladder for evacuation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111472683A true CN111472683A (en) | 2020-07-31 |
Family
ID=71749241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010237406.7A Pending CN111472683A (en) | 2020-03-30 | 2020-03-30 | Safety ladder for evacuation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111472683A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112972919A (en) * | 2021-03-11 | 2021-06-18 | 银丰工程有限公司 | Fire fighting device for high-rise building |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2049778A (en) * | 1979-05-08 | 1980-12-31 | Cheng Naval Architect & Marine | A Retractable Hold Ladder |
| CN102587601A (en) * | 2012-02-24 | 2012-07-18 | 中铁十二局集团第二工程有限公司 | Multistage connection cage-type staircase |
| CN105251144A (en) * | 2015-11-02 | 2016-01-20 | 上海理工大学 | Upper air slow descending device based on magnetorheological fluid damper |
| CN205857563U (en) * | 2016-07-14 | 2017-01-04 | 成都建筑工程集团总公司 | Assembled architecture escalator tool-type traffic stair |
| CN106836674A (en) * | 2017-03-22 | 2017-06-13 | 无锡市卡德姆机械科技有限公司 | The multi purpose space is using type open air fire-fighting rack |
| CN106869423A (en) * | 2017-03-22 | 2017-06-20 | 无锡市卡德姆机械科技有限公司 | Possesses the outdoor fire-fighting rack that multichannel climbs escaping function |
| CN206636072U (en) * | 2017-03-22 | 2017-11-14 | 无锡市卡德姆机械科技有限公司 | The outdoor fire-fighting rack escaped by all kinds of means |
| CN206934462U (en) * | 2017-07-13 | 2018-01-30 | 陈忠 | A kind of reduction of speed escape knapsack |
| CN109481860A (en) * | 2018-11-19 | 2019-03-19 | 麦啸川 | A kind of slow drop life-support back pack of intelligent rope |
| CN208770705U (en) * | 2018-08-23 | 2019-04-23 | 南阳及时星应急救援装备有限公司 | Ramp-down device and escape knapsack |
| CN110124221A (en) * | 2019-06-03 | 2019-08-16 | 李祖艺 | Escape component |
-
2020
- 2020-03-30 CN CN202010237406.7A patent/CN111472683A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2049778A (en) * | 1979-05-08 | 1980-12-31 | Cheng Naval Architect & Marine | A Retractable Hold Ladder |
| CN102587601A (en) * | 2012-02-24 | 2012-07-18 | 中铁十二局集团第二工程有限公司 | Multistage connection cage-type staircase |
| CN105251144A (en) * | 2015-11-02 | 2016-01-20 | 上海理工大学 | Upper air slow descending device based on magnetorheological fluid damper |
| CN205857563U (en) * | 2016-07-14 | 2017-01-04 | 成都建筑工程集团总公司 | Assembled architecture escalator tool-type traffic stair |
| CN106836674A (en) * | 2017-03-22 | 2017-06-13 | 无锡市卡德姆机械科技有限公司 | The multi purpose space is using type open air fire-fighting rack |
| CN106869423A (en) * | 2017-03-22 | 2017-06-20 | 无锡市卡德姆机械科技有限公司 | Possesses the outdoor fire-fighting rack that multichannel climbs escaping function |
| CN206636072U (en) * | 2017-03-22 | 2017-11-14 | 无锡市卡德姆机械科技有限公司 | The outdoor fire-fighting rack escaped by all kinds of means |
| CN206934462U (en) * | 2017-07-13 | 2018-01-30 | 陈忠 | A kind of reduction of speed escape knapsack |
| CN208770705U (en) * | 2018-08-23 | 2019-04-23 | 南阳及时星应急救援装备有限公司 | Ramp-down device and escape knapsack |
| CN109481860A (en) * | 2018-11-19 | 2019-03-19 | 麦啸川 | A kind of slow drop life-support back pack of intelligent rope |
| CN110124221A (en) * | 2019-06-03 | 2019-08-16 | 李祖艺 | Escape component |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112972919A (en) * | 2021-03-11 | 2021-06-18 | 银丰工程有限公司 | Fire fighting device for high-rise building |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200731 |