CN107879225A - A kind of passageway lift - Google Patents
A kind of passageway lift Download PDFInfo
- Publication number
- CN107879225A CN107879225A CN201711346101.4A CN201711346101A CN107879225A CN 107879225 A CN107879225 A CN 107879225A CN 201711346101 A CN201711346101 A CN 201711346101A CN 107879225 A CN107879225 A CN 107879225A
- Authority
- CN
- China
- Prior art keywords
- toter
- nut
- steel wire
- wire rope
- leading screw
- 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.)
- Granted
Links
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/06—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
- B66B9/08—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
- B66B9/0807—Driving mechanisms
-
- 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
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The present invention provides a kind of passageway lift, including for manned or loading toter, running track, the lifting drive for driving toter upwardly or downwardly to be slided along running track；The lifting drive includes the jack up unit for being used to drive toter to move up and down and the suspension arrangement for driving toter to move left and right, wherein：The beneficial effects of the invention are as follows：The passageway lift of the present invention and building stair perfect adaptation, small volume, take up an area the corridor design for less, not changing building；Passageway lift is simple in construction, easy for installation, and cost is cheap, dependable performance；Jack up unit is arranged in toter, is easy to maintenance and repair, ensure that the maintenance safety of maintenance personal；Guide Rail Design reliably solves the danger of passageway lift accidental falling, avoids the design of the stop system of complexity.
Description
Technical field
The present invention relates to elevator technology field, and in particular to applied to a kind of passageway lift transported up and down in building.
Background technology
In the market common elevator mainly with along guide rail carry out vertical up-or-down movement Lift car type elevator traction with
Based on the handrail elevator escalator and moving sidewalk that forcibly driving elevator and oblique ascension formula are continuously run, they are respectively used to
The transport up and down of the passenger and article of skyscraper and megastore.Both elevator floor spaces are big, purchase installation cost is high,
It is not suitable for being installed in the old building thing of multilayer.The particularly multi-storey building of some construction-times for a long time, and these houses
Resident family and the often old man of legs and feet inconvenience, therefore installation elevator is extremely necessary in old cell.
How a kind of passageway lift being easy in old cell install is provided, into a class of industry urgent need to resolve
Topic.
The content of the invention
The technical problem to be solved in the present invention is to overcome deficiency of the prior art, there is provided a kind of small volume, take up an area less,
It is cheap, and do not change the elevator used in the corridor of the structure of original multi-story structure.
To solve the above problems, technical scheme is as follows：
A kind of passageway lift, including for manned or loading toter, running track, for driving toter
The lifting drive upwardly or downwardly slided along running track；
The lifting drive includes being used for the jack up unit and transport for driving for driving that toter moves up and down
The suspension arrangement put and moved left and right is carried, wherein：
The jack up unit includes reel and for driving reel progress rotation to roll steel wire rope and loosening steel downwards
First motor of cord；
The suspension arrangement includes the second motor, leading screw, half-nut, the horizontal guide rail for being set up in top of building, steel
Cord and two limit switches installed in leading screw left and right ends, wherein：
The half-nut is actively socketed on leading screw, and steel wire rope top is fixedly connected on half-nut, half-nut outside two
Side is respectively erected in two guide ledges on the inside of horizontal guide rail, that is, is reached and carried out limit effect to half-nut, to prevent half
Nut deflects along leading screw in moving process；Second motor is used to drive half-nut and steel wire rope along leading screw to enter
Row left and right moves back and forth；
Two limit switches are separately mounted to leading screw left and right ends, for limiting half-nut along leading screw to the left or to the right
Mobile space；To prevent half-nut to the left or move right and be separated from leading screw, moved into place in half-nut in left end or the right side
During the limit switch at end, the second motor stops the rotation of driving leading screw, and then second motor carries out reverse drive leading screw certainly
Turn so that half-nut back moves along leading screw；
The steel wire rope bottom is connected with reel, and toter is erected at reel upper surface, is set on toter bottom surface
Directive wheel is equipped with, operation guide rail includes the upper rail and lower guideway of setting side by side up and down, and directive wheel can be slided with upper rail upwards
Dynamic to be connected, directive wheel can engage downwards mating connection with lower guideway；So design is to ensure directive wheel in steel wire
Can be along upper rail upward sliding or slide downward, the lower guideway for the setting that is serrated successfully during traction action of restricting
It is spacing on lower guideway in order to be directed to take turns in no steel wire rope traction action, to prevent that directive wheel downslide generation need not
The accident wanted.
Preferably, the trolley for being slidably connected directive wheel, directive wheel are provided with the inside of upper rail
Ratchet is vertically provided with, the gang saw tooth block for engaging the ratchet on mating connection directive wheel is provided with the inside of lower guideway.
Preferably, the shell body of the half-nut uses spill pattern, and its pattern is not limited to U-shaped, L-shaped and recessed
Shape etc..
Preferably, enter still further below with the steel wire rope below half-nut after the more than half nuts of the upward winding of steel wire rope
Row merges and locking is fixed by multiple buckles.
Preferably, the toter is platform-type toter, including manned platform, control handle and often
Enclosed switching mechanism.Wherein：Normally closed type switching mechanism can ensure that the manned platform acts on Xia Xiang buildings when manned by external force
Survey to rout up in road and stood for passenger, platform packs up reinstatements automatically when people leaves, with reduction to the occupancy of stairway spaces and
It is static to ensure that the load passageway lift remains in that in the case of user of service's false touch control handle.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, passageway lift of the invention and building stair perfect adaptation, small volume, the building for less, not changing building is taken up an area
Design in road；
2nd, passageway lift of the invention is simple in construction, and easy for installation, cost is cheap, dependable performance；
3rd, jack up unit of the invention is arranged in toter, is easy to maintenance and repair, be ensure that the maintenance of maintenance personal
Safety；
4th, Guide Rail Design of the invention reliably solves the danger of passageway lift accidental falling, avoids the stop of complexity
The design of system.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is suspension device structure diagram in the present invention；
Fig. 3 is jack up unit structural representation in the present invention.
Reference：1st, the second motor；2nd, leading screw；3rd, half-nut；4th, horizontal guide rail；5th, steel wire rope；6th, toter；
7th, manned platform；8th, directive wheel；9th, reel；10th, the first motor；11st, guide rail is run；12nd, guide ledges；13rd, buckle；14、
Upper rail；15th, ratchet；16th, sawtooth；17th, pressing plate；18th, lower guideway；19th, trolley；20th, grooving；21st, guide ledges；22nd, pole
Limit switch；
Embodiment
The method according to the invention thinking, embodiments of the invention are described below in detail, the example of the embodiment is attached
Shown in figure, wherein same or similar label represents same or similar element or has same or like function from beginning to end
Element.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining the present invention, and it is not intended that
Limitation of the present invention.
As shown in Figures 1 to 3：The present invention provides a kind of specific embodiment of passageway lift, including for manned or loading
Toter 7, running track 11, the lifting for driving toter 7 upwardly or downwardly to be slided along running track 11
Drive device；
The lifting drive includes being used for the jack up unit and transport for driving for driving that toter 7 moves up and down
Carry and put 7 suspension arrangements moved left and right, wherein：
The jack up unit includes reel 9 and for driving the progress rotation of reel 9 to roll steel wire rope 5 and loosen downwards
First motor 10 of steel wire rope 5；
The suspension arrangement includes the second motor 1, leading screw 2, half-nut 3, the horizontal guide rail for being set up in top of building
4th, steel wire rope 5 and two limit switches 22 installed in the left and right ends of leading screw 2, wherein：
The half-nut 3 is actively socketed on leading screw 2, and the top of steel wire rope 5 is fixedly connected on half-nut 3, half-nut 3 to
Outer both sides are respectively erected in two guide ledges 12 of the inner side of horizontal guide rail 4, that is, are reached and carried out limit effect to half-nut 3,
To prevent half-nut 3 from being deflected along leading screw 2 in moving process；Second motor 1 is used to drive half-nut 3 and steel wire
Rope 5 carries out left and right along leading screw 2 and moved back and forth；
Two limit switches 22 are separately mounted to the left and right ends of leading screw 2, for limit half-nut 3 along leading screw 2 to the left or
Person moves right space；To prevent half-nut 3 to the left or move right and be separated from leading screw 2, half-nut 3 move into place in
During the limit switch 22 of left or right, the second motor 1 stops the rotation of driving leading screw 2, and then second motor 1 is carried out instead
To the driving rotation of leading screw 2 so that half-nut 3 back moves along leading screw 2；
The bottom of steel wire rope 5 is connected with reel 9, and toter 7 is erected at the upper surface of reel 9, in the bottom surface of toter 7
On be provided with directive wheel 8,
Operation guide rail 11 includes the upper rail 14 and lower guideway 18 of setting side by side up and down, and directive wheel 8 upwards can be with above leading
Rail 14 is slidably connected, and directive wheel 8 can engage mating connection with lower guideway 18 downwards；
So design is to ensure that directive wheel 8 can be successfully along upper rail 14 in 5 traction action of steel wire rope
Upward sliding or slide downward, the lower guideway 18 of the setting that is serrated are in order to can in no 5 traction action of steel wire rope
It is directed to that wheel is 8 spacing on lower guideway 18, to prevent directive wheel 8 glides from unnecessary accident occurs.
Wherein：Be provided with the trolley 19 for being slidably connected directive wheel 8 in the inner side of upper rail 14, directive wheel 8 to
Ratchet 15 is arranged with, the inner side of lower guideway 18 is provided with the gang saw for engaging the ratchet 15 on mating connection directive wheel 8
Tooth block 16.Merge and lead to the steel wire rope 5 positioned at the lower section of half-nut 3 still further below after the more than half nuts 3 of 5 upward winding of steel wire rope
Cross multiple buckles 13 and locking is fixed.The toter 6 is platform-type toter, including manned platform 7, control handle
And normally closed type switching mechanism.Normally closed type switching mechanism can ensure that the manned platform acts on Xia Xiang buildings when manned by external force
Survey to rout up in road and stood for passenger, platform packs up reinstatements automatically when people leaves, with reduction to the occupancy of stairway spaces and
It is static to ensure that the load passageway lift remains in that in the case of user of service's false touch control handle.
Specifically：The end of the leading screw 2 connects the second motor 1, and second motor 1 drives leading screw 2 to rotate, made
Axis direction of the described half-nut 3 along leading screw 2 moves back and forth, when the half-nut 3 encounters the limit switch
When 22, second motor 1 changes direction of rotation, and the half-nut 3 is fixed with described steel wire rope 5 by the way that buckle 13 is vertical
Connection.
As shown in Fig. 2 to ensure when the thread damage of the leading screw 2, it is easy to nut to take out and is changed, spy is using half
The pattern of nut 3, its pattern are not limited to U-shaped, L-shaped and spill etc..
As shown in Fig. 2 to ensure that the leading screw 2 is not produced pulling force vertically downward to it by the steel wire rope 5, in institute
State and guide ledges 12 are cut at horizontal guide rail 4, be engaged with the guide ledges 21 of the half-nut 3.
As shown in Fig. 2 for ensure the steel wire rope 5 can with the half-nut 3 it is reliable it is vertical be fixedly connected, and just
Cutting after the replacing and growth of steel wire rope 5, rope outlet groove 20 is cut at the half-nut 3, steel wire rope 5 is bonded
In grooving 20.
As shown in figure 3, the end of reel 9 connects the first motor 10, first motor 10 drives 9 turns of reel
It is dynamic.
As shown in figure 3, the reel 9 is winding of single layer reel, its can the length of lay winding wire ropes 5 be the toter 6
Length from corridor bottom horizontal plane to the vertical range of corridor top layer horizontal plane plus the two circle safety loops of reel 9, to ensure
The motor 10 in jack up unit is stated at the uniform velocity rotary course, the directive wheel 8 on the toter 6 can be close to the fortune
The upper rail 14 of row guide rail 11, and ensure that passageway lift can at the uniform velocity rise along the upper rail 14 of operation guide rail 11.
As shown in figure 3, the toter 6 is platform-type toter, it include manned platform 7, control handle and
Normally closed type switching mechanism.The manned platform 7 is surveyed to rout up under external force into corridor and stood for passenger when manned, people from
Platform packs up reinstatement automatically when opening, to reduce the occupancy to stairway spaces.
In the present invention, as shown in figure 3, the running track 11 is arranged on the guard rail position of building stair, it is parallel to institute
The armrest surface of stair railing to be stated, is made up of parallel two groups of guide rails up and down, every group of guide rail is divided into upper rail 14 and lower guideway 18, and two
Root guide rail is parallel to each other.The lower surface of upper rail 14 is in rail-like, can be that the directive wheel 8 in the toter 6 provides fortune
Capable track.The lower surface of upper rail 14 is embedded with trolley 19, can be that the motor 10 in the jack up unit provides power supply.
The upper surface of lower guideway 18 is a gang saw tooth block 16, when fracture occurs for the steel wire rope 5, the elevator is repaired or institute
When stating elevator generation rollback phenomenon, it can be engaged, prevent with the ratchet 15 on the directive wheel 8 in the toter 6
Only the toter 6 drops, and protects the safety of personnel on the elevator and elevator.
As shown in figure 3, the corresponding difference half tooth of sawtooth 16 at the upper surface of the lower guideway 18 of two groups of guide rails is away from institute
State the gear teeth of ratchet 15 at two in toter 6 directive wheels 8 correspondingly differ half tooth away from, and with the lower guideway 18
Sawtooth 16 at upper surface matches, to ensure that the ratchet 15 can be engaged accurately in 1/4 tooth pitch at the latest with sawtooth 16.
As shown in figure 3, the number of teeth of the ratchet 15 and sawtooth block 16 determines according to actual field and user's request.
Embodiment 1:Using passageway lift from 1 upstairs to 3 buildings：
1st, find that passageway lift rests in 1 building, manned platform is surveyed to upset into corridor with hand；
2nd, both feet are stepped on manned platform, and both hands hold the control handle of toter both sides；
3rd, the control handle of right-hand side is reversed, passageway lift starts；
4th, emergency is run into, the right hand is unclamped or both feet leaves manned platform, passageway lift stops；
5th, normal condition, it is seen that passageway lift reaches 3 buildings, unclamps the right hand, and passageway lift stops, and leaves passageway lift, ties
Beam boarding.
Claims (5)
- A kind of 1. passageway lift, it is characterised in that including for manned or loading toter (7), running track (11), For the lifting drive for driving toter (7) upwardly or downwardly to be slided along running track (11)；The lifting drive includes being used for the jack up unit and deliver for driving for driving that toter (7) moves up and down The suspension arrangement that device (7) moves left and right, wherein：The jack up unit include reel (9) and for drive reel (9) carry out rotation rotate roll steel wire rope (5) and to Under loosen the first motor (10) of steel wire rope (5)；The suspension arrangement include the second motor (1), leading screw (2), half-nut (3), horizontal guide rail (4), steel wire rope (5), with And two limit switches (22) installed in leading screw (2) left and right ends, wherein：The half-nut (3) is actively socketed on leading screw (2), and steel wire rope (5) top is fixedly connected on half-nut (3), half spiral shell Female (3) are outwards respectively erected on two guide ledges (12) on the inside of horizontal guide rail (4) both sides, and the second motor (1) is used for Driving half-nut (3) and steel wire rope (5) carry out left and right along leading screw (2) and moved back and forth；Two limit switches (22) are separately mounted to leading screw (2) left and right ends, for limit half-nut (3) along leading screw (2) to Left or move right space and the second motor of change (1) driving leading screw (2) rotation direction；Steel wire rope (5) bottom is connected with reel (9), and toter (7) is erected at reel (9) upper surface, in toter (7) directive wheel (8) is provided with bottom surface, operation guide rail (11) includes the upper rail (14) and lower guideway of setting side by side up and down (18), directive wheel (8) can be slidably connected with upper rail (14) upwards, and directive wheel (8) downwards can be with lower guideway (18) Engagement is connected.
- 2. according to a kind of passageway lift described in claim 1, it is characterised in that be provided with and be used on the inside of upper rail (14) For the trolley (19) of the first motor (10) power supply, directive wheel (8) is vertically provided with ratchet (15), on the inside of lower guideway (18) It is provided with the gang saw tooth block (16) for engaging the ratchet (15) on mating connection directive wheel (8).
- 3. according to a kind of passageway lift described in claim 2, it is characterised in that the shell body of the half-nut (3) is presented Spill, U-shaped or L-shaped.
- 4. according to a kind of passageway lift described in claim 1, it is characterised in that on the embedded half-nut (3) of steel wire rope (5) Grooving (20) simultaneously merges with the steel wire rope (5) below half-nut (3) and lock is fixed by multiple buckles (13) Tightly.
- 5. according to a kind of passageway lift described in claim 1, it is characterised in that the toter (6) is platform-type fortune Carry and put, including manned platform (7), control handle and normally closed type switching mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711346101.4A CN107879225B (en) | 2017-12-15 | 2017-12-15 | Corridor elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711346101.4A CN107879225B (en) | 2017-12-15 | 2017-12-15 | Corridor elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107879225A true CN107879225A (en) | 2018-04-06 |
| CN107879225B CN107879225B (en) | 2024-05-17 |
Family
ID=61770819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711346101.4A Active CN107879225B (en) | 2017-12-15 | 2017-12-15 | Corridor elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107879225B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726325A (en) * | 2018-07-23 | 2018-11-02 | 三峡大学 | A kind of step ladder universal machine toter and application method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174023A (en) * | 1977-11-08 | 1979-11-13 | Dooley Stephen J | Stairlift |
| DE19858569A1 (en) * | 1998-12-18 | 2000-06-21 | Heinrich Riedl | A hoist system for avoiding the mounting of stairs by elderly or infirm persons in multi-storey buildings has an electrically operated platform or seat alongside the stairs. |
| CN1522945A (en) * | 2003-07-09 | 2004-08-25 | 南京理工科技园股份有限公司 | Safety elevator for multi-layer building |
| CN205151456U (en) * | 2015-12-08 | 2016-04-13 | 安道利佳智能科技（北京）股份公司 | Split type track intelligence elevator of riding instead of walk |
| CN106698155A (en) * | 2017-01-22 | 2017-05-24 | 长安大学 | Relay type lead screw slide rail corridor elevator |
| CN106829694A (en) * | 2017-03-29 | 2017-06-13 | 周口师范学院 | A kind of hanging passageway lift of novel top |
| CN206278799U (en) * | 2016-12-26 | 2017-06-27 | 周贤永 | A kind of handrail express lift |
| CN107032216A (en) * | 2017-05-12 | 2017-08-11 | 华侨大学 | A kind of segmented suspention elevator in corridor |
| CN207748708U (en) * | 2017-12-15 | 2018-08-21 | 浙江省特种设备检验研究院 | A kind of passageway lift |
-
2017
- 2017-12-15 CN CN201711346101.4A patent/CN107879225B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174023A (en) * | 1977-11-08 | 1979-11-13 | Dooley Stephen J | Stairlift |
| DE19858569A1 (en) * | 1998-12-18 | 2000-06-21 | Heinrich Riedl | A hoist system for avoiding the mounting of stairs by elderly or infirm persons in multi-storey buildings has an electrically operated platform or seat alongside the stairs. |
| CN1522945A (en) * | 2003-07-09 | 2004-08-25 | 南京理工科技园股份有限公司 | Safety elevator for multi-layer building |
| CN205151456U (en) * | 2015-12-08 | 2016-04-13 | 安道利佳智能科技（北京）股份公司 | Split type track intelligence elevator of riding instead of walk |
| CN206278799U (en) * | 2016-12-26 | 2017-06-27 | 周贤永 | A kind of handrail express lift |
| CN106698155A (en) * | 2017-01-22 | 2017-05-24 | 长安大学 | Relay type lead screw slide rail corridor elevator |
| CN106829694A (en) * | 2017-03-29 | 2017-06-13 | 周口师范学院 | A kind of hanging passageway lift of novel top |
| CN107032216A (en) * | 2017-05-12 | 2017-08-11 | 华侨大学 | A kind of segmented suspention elevator in corridor |
| CN207748708U (en) * | 2017-12-15 | 2018-08-21 | 浙江省特种设备检验研究院 | A kind of passageway lift |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726325A (en) * | 2018-07-23 | 2018-11-02 | 三峡大学 | A kind of step ladder universal machine toter and application method |
| CN108726325B (en) * | 2018-07-23 | 2023-07-11 | 三峡大学 | Universal mechanical carrying device for step ladder and use method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107879225B (en) | 2024-05-17 |
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