CN111155924A - Accomodate emergency ladder outside window - Google Patents
Accomodate emergency ladder outside window Download PDFInfo
- Publication number
- CN111155924A CN111155924A CN202010107856.4A CN202010107856A CN111155924A CN 111155924 A CN111155924 A CN 111155924A CN 202010107856 A CN202010107856 A CN 202010107856A CN 111155924 A CN111155924 A CN 111155924A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- rod
- gear
- wall body
- belt wheel
- 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.)
- Withdrawn
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Classifications
-
- 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
- E06C9/085—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members ladders unfolded in the direction of the longitudinal members
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F57/00—Supporting means, other than simple clothes-lines, for linen or garments to be dried or aired
- D06F57/12—Supporting means, other than simple clothes-lines, for linen or garments to be dried or aired specially adapted for attachment to walls, ceilings, stoves, or other structures or objects
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Ladders (AREA)
Abstract
The invention discloses an escape ladder stored outside a window, which comprises a wall body with a windowsill, wherein a motor is arranged at the upper part of the wall body, a first rotating shaft is connected onto the motor, two first gears are arranged on the first rotating shaft, the first gears are meshed with a double-sided rack, the other side of the double-sided rack is meshed with a second gear, an active lifting rod is arranged on the wheel surface of the second gear, the other end of the active lifting rod is hinged to the middle part of an upper ladder frame, the escape ladder is used as an escape way when an accident happens in a building, the escape ladder is normally stored in a cover plate below the windowsill of each floor, the reduction of the service life of residents can be reduced, the part extending out of the cover plate can also be used as a clothes airing rod, and the resident can fall on the windowsill of the next floor after the escape ladder is triggered to serve as a support.
Description
Technical Field
The invention relates to the technical field of ladders related to buildings, in particular to an escape ladder stored outside a window.
Background
The residential building is a place with a lot of fire, and as the residential building is built higher nowadays, residents living in high-rise buildings become the most vulnerable people in case of fire, so that not only can the escape paths be blocked by flames, but also the fire fighting truck can hardly reach too high height, and a special road for helping people to escape is needed.
Disclosure of Invention
Aiming at the technical defects, the invention provides an escape ladder stored outside a window, which can overcome the defects.
The invention relates to an escape ladder accommodated outside a window, which comprises a wall body with a windowsill, wherein the upper part of the wall body is provided with a motor, the motor is connected with a first rotating shaft, the first rotating shaft is provided with two first gears and a first bevel gear, the first gears are meshed with a double-sided rack, the other side of the double-sided rack is meshed with a second gear, the right inclined plane of the double-sided rack is contacted with an inclined block, the inclined block is arranged at the upper end of a sliding rod, the sliding rod is slidably arranged in the wall body, the lower end of the sliding rod is connected with a first spring, the other end of the first spring is connected with the wall body, the wheel surface of the second gear is provided with a driving lifting rod, the other end of the driving lifting rod is hinged to the middle part of an upper ladder frame, the second gear is arranged on a second rotating shaft, the second rotating shaft is rotatably arranged in the wall body, and the two ends of the second rotating, the first belt wheel is connected with a third belt wheel through a first belt, the third belt wheel is arranged on a third rotating shaft, the third rotating shaft is rotatably arranged in the wall body, the third rotating shaft is also provided with two driven lifting rods, the driven lifting rod is arranged on a fourth rotating shaft, two positioning rods and turntables arranged at the lower ends of the upper ladder frame and the lower ladder frame are rotatably arranged on the fourth rotating shaft, the turntable is provided with a limiting groove, the lower end of the positioning rod is provided with a limiting rod, the limiting rod is slidably arranged in the limiting groove, the upper end of the positioning rod is provided with a short shaft, the short shaft is rotatably provided with two mounting rods, the mounting rods are rotatably provided with a plurality of pedals, the pedals on the mounting rods are respectively rotatably arranged on the upper ladder frame and the lower ladder frame, and the pedals on the same side are all kept parallel.
Beneficially, the middle of the lower ladder frame is hinged with a swing rod, a sliding groove is formed in the lower end of the swing rod, the sliding groove is sleeved on a fifth rotating shaft, a power rod is further installed in the first sliding groove, the power rod is installed on the wheel surface of a rotating wheel, the rotating wheel is installed on the fifth rotating shaft, a fourth belt wheel is further installed on the fifth rotating shaft, and the fourth belt wheel is connected with the second belt wheel through a fourth belt wheel.
Beneficially, the bracing piece is installed to lower ladder frame upper end, slidable mounting has the apron on the bracing piece, be provided with the spring groove between apron upper end and the lower ladder frame, be provided with the second spring in the spring groove, the second spring suit is in on the bracing piece, apron upper end left side is provided with the dog, the dog is installed in thrust rack left side, thrust rack slidable mounting in the windowsill, the thrust rack with first gear engagement, the apron lower extreme is provided with the slide, be provided with the second sliding tray in the slide, the second sliding tray horizontal slip mounting in the fourth pivot, the fourth pivot with the third spring has been linked between the second sliding tray left wall.
Advantageously, the first bevel gear is engaged with a second bevel gear, the second bevel gear is mounted on a sixth rotating shaft, the sixth rotating shaft is rotatably mounted in the windowsill, the second bevel gear is further engaged with a third bevel gear, the third bevel gear is mounted on a seventh rotating shaft, a third gear is mounted on the seventh rotating shaft, the third gear is engaged with an incomplete gear, the incomplete gear is mounted on an eighth rotating shaft, the eighth rotating shaft is rotatably mounted in a mounting plate, a manned plate is mounted on the eighth rotating shaft, and a support frame is mounted at the lower end of the manned plate.
The beneficial effects are that: the device is used as an escape way when an accident happens in a residential building, is usually stored in the cover plate below the windowsill of each floor, can slow down the reduction of the service life of the device, can be used as a clothes airing rod after the part extending out of the cover plate is overturned, and falls on the windowsill of the next floor to serve as a support after the device is triggered.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of an escape ladder accommodated outside a window according to the present invention;
FIG. 2 is a schematic sectional view taken along the direction "A-A" in FIG. 1;
FIG. 3 is a schematic sectional view taken along the direction "B-B" in FIG. 1;
FIG. 4 is a schematic sectional view taken along the direction of "C-C" in FIG. 2;
FIG. 5 is a schematic sectional view of the structure of FIG. 2 taken along the direction "D-D".
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The invention will now be described in detail with reference to fig. 1-5, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to an escape ladder accommodated outside a window, which comprises a wall body 1 with a windowsill 2, wherein the upper part of the wall body 1 is provided with a motor 3, the motor 3 is connected with a first rotating shaft 4, the first rotating shaft 4 is provided with two first gears 5 and a first bevel gear 38, the first gears 5 are meshed with a double-sided rack 6, the other side of the double-sided rack 6 is meshed with a second gear 11, the right inclined plane of the double-sided rack 6 is contacted with an inclined block 8, the inclined block 8 is arranged at the upper end of a sliding rod 9, the sliding rod 9 is slidably arranged in the wall body 1, the lower end of the sliding rod 9 is connected with a first spring 10, the other end of the first spring 10 is connected with the wall body 1, the wheel surface of the second gear 11 is provided with a driving lifting rod 12, the other end of the driving lifting rod 12 is hinged to the middle part of an upper ladder frame 27, the second gear 11 is arranged on a, the second rotating shaft 13 is rotatably installed in the wall 1, a first belt wheel 14 and a second belt wheel 19 are respectively installed at two ends of the second rotating shaft 13, the first belt wheel 14 is connected with a third belt wheel 16 through a first belt 15, the third belt wheel 16 is installed on a third rotating shaft 17, the third rotating shaft 17 is rotatably installed in the wall 1, two driven lifting rods 18 are further installed on the third rotating shaft 17, the driven lifting rods 18 are installed on a fourth rotating shaft 51, two positioning rods 49 and rotating discs 53 arranged at the lower ends of the upper ladder rack 27 and the lower ladder rack 29 are rotatably installed on the fourth rotating shaft 51, a limiting groove 54 is formed in the rotating disc 53, a limiting rod 53 is arranged at the lower end of the positioning rod 49, the limiting rod 53 is slidably installed in the limiting groove 54, a short shaft 52 is arranged at the upper end of the positioning rod 49, and two installation rods 28 are rotatably installed on the short shaft 52, the mounting rods 28 are rotatably provided with a plurality of pedals 50, the pedals 50 on the two mounting rods 28 are respectively rotatably arranged on the upper ladder frame 27 and the lower ladder frame 29, and the pedals 50 on the same side are kept parallel.
Beneficially, the middle of the lower ladder frame 29 is hinged to a swing rod 25, the lower end of the swing rod 25 is provided with a sliding groove 26, the sliding groove 26 is sleeved on the fifth rotating shaft 22, the first sliding groove 26 is further provided with a power rod 24, the power rod 24 is mounted on the wheel surface of a rotating wheel 23, the rotating wheel 23 is mounted on the fifth rotating shaft 22, the fifth rotating shaft 22 is further provided with a fourth belt pulley 21, and the fourth belt pulley 21 is connected with the second belt pulley 19 through the fourth belt pulley 20.
Beneficially, a support rod 32 is mounted at the upper end of the lower ladder rack 29, a cover plate 54 is slidably mounted on the support rod 32, a spring groove 30 is disposed between the upper end of the cover plate 54 and the lower ladder rack 29, a second spring 31 is disposed in the spring groove 30, the second spring 31 is sleeved on the support rod 32, a stopper 33 is disposed on the left side of the upper end of the cover plate 54, the stopper 33 is mounted on the left side of a thrust rack 34, the thrust rack 34 is slidably mounted in the windowsill 2, the thrust rack 34 is engaged with the first gear 5, a sliding plate 35 is disposed at the lower end of the cover plate 26, a second sliding groove 37 is disposed in the sliding plate 35, the second sliding groove 37 is slidably mounted on the fourth rotating shaft 51, and a third spring 36 is linked between the fourth rotating shaft 51 and the left wall of the second sliding groove 37.
Advantageously, the first bevel gear 38 is engaged with the second bevel gear 39, the second bevel gear 39 is mounted on a sixth rotating shaft 40, the sixth rotating shaft 40 is rotatably mounted in the windowsill 2, the second bevel gear 39 is further engaged with a third bevel gear 41, the third bevel gear 41 is mounted on a seventh rotating shaft 42, a third gear 43 is mounted on the seventh rotating shaft 42, the third gear 43 is engaged with an incomplete gear 44, the incomplete gear 44 is mounted on an eighth rotating shaft 45, the eighth rotating shaft 45 is rotatably mounted in a mounting plate 47, a carrying plate 46 is mounted on the eighth rotating shaft 45, and a support frame 48 is mounted at the lower end of the carrying plate 46.
In the initial state, the first spring 10 is in a normal state, the second spring 31 and the third spring 36 are in a compressed state, and the support rod 32 can be used as a clothes airing rod;
when the fire disaster happens in the building, the sensor is triggered to start the motor 3, so as to drive the first rotating shaft 4 to rotate, so as to drive the first gear 5 and the first bevel gear 38 to rotate, the first gear 5 rotates to drive the thrust rack 34 to slide leftwards, so as to drive the stop block 33 to slide leftwards, so as to cause the cover plate 54 to slide leftwards, meanwhile, the first gear 5 rotates to drive the double-sided rack 6 to slide rightwards, so as to drive the second gear 11 to rotate, so as to drive the second rotating shaft 13 to rotate, so as to drive the driving lifting rod 12, the first belt wheel 14 and the second belt wheel 19 to rotate, the double-sided rack 6 slides rightwards, so as to drive the inclined block 8 to slide downwards, so that the inclined block 8 presses the driving lifting rod 12 after rotating, the double-sided rack 6 stops pressing the inclined block 8 after sliding to above the inclined block 8, the first belt wheel 14 rotates to drive the third belt wheel 16 to rotate, thereby driving the driven lifting rod 18 to rotate, thereby driving the upper ladder rack 27 to keep vertically lifted up to the left, while the second belt wheel 19 rotates to drive the fourth belt wheel 21 to rotate, thereby driving the fifth rotating shaft 22 to rotate, thereby driving the rotating wheel 23 to rotate, thereby driving the swing rod 25 to rotate, thereby driving the lower ladder rack 29 to rotate, thereby driving the support rod 32 and the cover plate 54 to swing downward, thereby making the support rod 32 fall on the next-floor windowsill 2 as a support, while the lower ladder rack 29 swings, the mounting rod 28 is driven to rotate and expand, while driving the limiting rod 53 to rotate, thereby driving the two limiting grooves 54 to move toward each other to clamp the limiting rod 53, thereby making the positioning rod 49 fixed when rotating to the horizontal, while the mounting rod 28 swings to drive the pedal 50 to rotate to the horizontal.
The rotation of the first bevel gear 38 drives the rotation of the sixth rotating shaft 40 to drive the rotation of the third bevel gear 41, thereby driving the rotation of the seventh rotating shaft 42, thereby driving the rotation of the third gear 43, thereby driving the rotation of the incomplete gear 44, thereby driving the rotation of the eighth rotating shaft 45, thereby driving the manned board 46 to swing downwards until the support frame 48 contacts the wall body 1 to support the manned board 46.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.
Claims (4)
1. An escape ladder stored outside a window comprises a wall body with a windowsill, wherein a motor is arranged at the upper part of the wall body, a first rotating shaft is connected onto the motor, two first gears and a first bevel gear are installed on the first rotating shaft, the first gears are meshed with a double-sided rack, the other side of the double-sided rack is meshed with a second gear, the right inclined plane of the double-sided rack is contacted with an inclined block, the inclined block is installed at the upper end of a sliding rod, the sliding rod is installed in the wall body in a sliding manner, the lower end of the sliding rod is connected with a first spring, the other end of the first spring is connected to the wall body, a driving lifting rod is installed on the gear surface of the second gear, the other end of the driving lifting rod is hinged to the middle part of an upper ladder frame, the second gear is installed on a second rotating shaft, the second rotating shaft is installed in the wall body in a rotating manner, a first belt pulley, the first belt wheel is connected with a third belt wheel through a first belt, the third belt wheel is arranged on a third rotating shaft, the third rotating shaft is rotatably arranged in the wall body, the third rotating shaft is also provided with two driven lifting rods, the driven lifting rod is arranged on a fourth rotating shaft, two positioning rods and turntables arranged at the lower ends of the upper ladder frame and the lower ladder frame are rotatably arranged on the fourth rotating shaft, the turntable is provided with a limiting groove, the lower end of the positioning rod is provided with a limiting rod, the limiting rod is slidably arranged in the limiting groove, the upper end of the positioning rod is provided with a short shaft, the short shaft is rotatably provided with two mounting rods, the mounting rods are rotatably provided with a plurality of pedals, the pedals on the mounting rods are respectively rotatably arranged on the upper ladder frame and the lower ladder frame, and the pedals on the same side are all kept parallel.
2. An escape ladder according to claim 1, wherein: the middle of the lower ladder frame is hinged with a swing rod, the lower end of the swing rod is provided with a sliding groove, the sliding groove is sleeved on a fifth rotating shaft, a power rod is further installed in the first sliding groove, the power rod is installed on the wheel surface of the rotating wheel, the rotating wheel is installed on the fifth rotating shaft, a fourth belt wheel is further installed on the fifth rotating shaft, and the fourth belt wheel is connected with the second belt wheel through a fourth belt wheel.
3. An escape ladder according to claim 2, wherein: the utility model discloses a window sill, including lower ladder frame, apron, push rack, slide groove, bracing piece, apron upper end and lower ladder frame, be provided with the second spring in the spring groove, the second spring suit is in on the bracing piece, apron upper end left side is provided with the dog, the dog is installed in push rack left side, push rack slidable mounting in the windowsill, push rack with first gear engagement, the apron lower extreme is provided with the slide, be provided with the second sliding tray in the slide, second sliding tray horizontal slip mounting in the fourth pivot, the fourth pivot with the third spring has been linked between second sliding tray left wall.
4. An escape ladder according to claim 1, wherein: the first bevel gear is meshed with the second bevel gear, the second bevel gear is installed on a sixth rotating shaft, the sixth rotating shaft is rotatably installed in the windowsill, the second bevel gear is further meshed with a third bevel gear, the third bevel gear is installed on a seventh rotating shaft, a third gear is installed on the seventh rotating shaft, the third gear is meshed with an incomplete gear, the incomplete gear is installed on an eighth rotating shaft, the eighth rotating shaft is rotatably installed in an installation plate, a manned plate is installed on the eighth rotating shaft, and a support frame is installed at the lower end of the manned plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010107856.4A CN111155924A (en) | 2020-02-21 | 2020-02-21 | Accomodate emergency ladder outside window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010107856.4A CN111155924A (en) | 2020-02-21 | 2020-02-21 | Accomodate emergency ladder outside window |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111155924A true CN111155924A (en) | 2020-05-15 |
Family
ID=70566132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010107856.4A Withdrawn CN111155924A (en) | 2020-02-21 | 2020-02-21 | Accomodate emergency ladder outside window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111155924A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568988A (en) * | 2022-04-07 | 2022-06-03 | 厦门市精弘工贸有限公司 | Reinforced multilayer towel rack with mounting screws |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10169347A (en) * | 1996-12-10 | 1998-06-23 | Katsuhiro Uehara | Emergency evacuation device |
| WO2000005480A1 (en) * | 1998-07-23 | 2000-02-03 | Eduardo Canovas Molina | Unfoldable and self-contained metal platform for evacuation of persons |
| JP2004044247A (en) * | 2002-07-12 | 2004-02-12 | Asatada Hentona | Open-close type escape ladder |
| US20040108163A1 (en) * | 2002-08-22 | 2004-06-10 | Johnson Donald Ole | Emergency ladder system and method of use |
| WO2008063571A2 (en) * | 2006-11-21 | 2008-05-29 | Brian Johnson | Stowable, unobtrusive access and escape devices |
| WO2008096053A2 (en) * | 2006-12-21 | 2008-08-14 | Stylaxion S.A.R.L. | Mobile anchoring and fall prevention device |
| DE202012000499U1 (en) * | 2012-01-19 | 2012-03-14 | Hannelore Lumpp | Rescue exit on facades in case of fire |
| CN202170750U (en) * | 2011-07-07 | 2012-03-21 | 三江学院 | Turnover escape rack |
| FR2987068A1 (en) * | 2012-02-21 | 2013-08-23 | Patrick Petit | Evacuation device for rapid and safe evacuation of people in building of low to medium height in event of fire, has cable ladder folded and fixed at tilting frame in metal box, where inner pedal or outer pedal allows device to be actuated |
| JP2013192636A (en) * | 2012-03-16 | 2013-09-30 | Kiyotoshi Yamazaki | Refuge instrument |
| CN106837154A (en) * | 2016-12-20 | 2017-06-13 | 曹伟 | Rescue people's cloth cylinder ladder in high building open air |
| CN106894753A (en) * | 2017-03-14 | 2017-06-27 | 武汉轻工大学 | High-rise building fire ladder for escaping |
| CN109930984A (en) * | 2019-03-12 | 2019-06-25 | 蔡桂平 | Fire ladder for escaping, escape system and application method based on fire ladder for escaping |
| CN209885058U (en) * | 2019-04-11 | 2020-01-03 | 福州职业技术学院 | Low-rise escape device |
-
2020
- 2020-02-21 CN CN202010107856.4A patent/CN111155924A/en not_active Withdrawn
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10169347A (en) * | 1996-12-10 | 1998-06-23 | Katsuhiro Uehara | Emergency evacuation device |
| WO2000005480A1 (en) * | 1998-07-23 | 2000-02-03 | Eduardo Canovas Molina | Unfoldable and self-contained metal platform for evacuation of persons |
| JP2004044247A (en) * | 2002-07-12 | 2004-02-12 | Asatada Hentona | Open-close type escape ladder |
| US20040108163A1 (en) * | 2002-08-22 | 2004-06-10 | Johnson Donald Ole | Emergency ladder system and method of use |
| WO2008063571A2 (en) * | 2006-11-21 | 2008-05-29 | Brian Johnson | Stowable, unobtrusive access and escape devices |
| WO2008096053A2 (en) * | 2006-12-21 | 2008-08-14 | Stylaxion S.A.R.L. | Mobile anchoring and fall prevention device |
| CN202170750U (en) * | 2011-07-07 | 2012-03-21 | 三江学院 | Turnover escape rack |
| DE202012000499U1 (en) * | 2012-01-19 | 2012-03-14 | Hannelore Lumpp | Rescue exit on facades in case of fire |
| FR2987068A1 (en) * | 2012-02-21 | 2013-08-23 | Patrick Petit | Evacuation device for rapid and safe evacuation of people in building of low to medium height in event of fire, has cable ladder folded and fixed at tilting frame in metal box, where inner pedal or outer pedal allows device to be actuated |
| JP2013192636A (en) * | 2012-03-16 | 2013-09-30 | Kiyotoshi Yamazaki | Refuge instrument |
| CN106837154A (en) * | 2016-12-20 | 2017-06-13 | 曹伟 | Rescue people's cloth cylinder ladder in high building open air |
| CN106894753A (en) * | 2017-03-14 | 2017-06-27 | 武汉轻工大学 | High-rise building fire ladder for escaping |
| CN109930984A (en) * | 2019-03-12 | 2019-06-25 | 蔡桂平 | Fire ladder for escaping, escape system and application method based on fire ladder for escaping |
| CN209885058U (en) * | 2019-04-11 | 2020-01-03 | 福州职业技术学院 | Low-rise escape device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568988A (en) * | 2022-04-07 | 2022-06-03 | 厦门市精弘工贸有限公司 | Reinforced multilayer towel rack with mounting screws |
| CN114568988B (en) * | 2022-04-07 | 2023-07-25 | 厦门市精弘工贸有限公司 | Reinforced multi-layer towel rack with mounting screws |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200515 |