CN106276548B - A kind of energy-conserving elevator - Google Patents
A kind of energy-conserving elevator Download PDFInfo
- Publication number
- CN106276548B CN106276548B CN201610769132.XA CN201610769132A CN106276548B CN 106276548 B CN106276548 B CN 106276548B CN 201610769132 A CN201610769132 A CN 201610769132A CN 106276548 B CN106276548 B CN 106276548B
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- CN
- China
- Prior art keywords
- clump weight
- weight
- holding structure
- sinker
- connecting rod
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Landscapes
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The embodiment of the invention discloses a kind of energy-conserving elevators, including car and balance weight mechanism, the balance weight mechanism includes sinker, clump weight grasping mechanism, clump weight and clump weight holding structure, the sinker bypasses the traction system being set at the top of lift trough by steel wire rope and is connect with car, weight sensor is equipped in the traction system, the clump weight grasping mechanism is used to that the clump weight in clump weight holding structure to be fixed on the sinker according to the feedback of the weight sensor, or the clump weight on sinker is detached with sinker and is stored in corresponding clump weight holding structure, the clump weight holding structure includes clump weight storage layer, the clump weight storage layer is set at the uppermost storey and lowest floor that car can reach.The present invention can reduce the tractive force that traction motor needs according to the weight of the load capacity dynamic regulation counterweight of car, to reduce the operation power of elevator, save the energy.
Description
Technical field
The present invention relates to a kind of elevator more particularly to a kind of energy-conserving elevators.
Background technology
The clump weight of elevator is the weight for balancing car, reduces the mechanism of the driving force needed when elevator operation.It is existing
Elevator counterweight be it is fixed, generally rated load plus car dead weight total weight 45%-50%.In this way, traction is electric
The driving force of machine only needs half when no counterweight, you can driving elevator operation.But using above-mentioned counterweight mode, car is full
The driving force size of traction motor is that relatively, and power is also close, is the state to consume energy the most when load and unloaded；And
Zero load and fully loaded situation are most when actually elevator is run, therefore are unfavorable for energy conservation and environmental protection using above-mentioned counterweight mode.
Invention content
Technical problem to be solved of the embodiment of the present invention is, provides a kind of energy-conserving elevator, can be according to the carrying of car
The weight of weight dynamic regulation counterweight reduces the tractive force that traction motor needs, and to reduce the operation power of elevator, saves energy
Source.
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides a kind of energy-conserving elevators, including car and counter weight machine
Structure, the balance weight mechanism include sinker, clump weight grasping mechanism, clump weight and clump weight holding structure, and the sinker is logical
It crosses the traction system that steel wire rope bypasses at the top of lift trough to connect with car, weight sensor is equipped in the traction system,
The clump weight grasping mechanism is for fixing the clump weight in clump weight holding structure according to the feedback of the weight sensor
On the sinker, or the clump weight on sinker is detached with sinker and is stored in corresponding clump weight holding structure
Interior, the clump weight holding structure includes clump weight storage layer, and the clump weight storage layer is set to the highest that car can reach
At floor and lowest floor.
As the improvement of said program, the clump weight storage layer is set to uppermost storey and lowest floor that car can reach
At layer and each floor between them.
Crawl hole is equipped with as the improvement of said program, at the top of the clump weight, front is equipped with connecting rod, the connecting rod
Front end be equipped with the fixture block of opposite its side protrusion, the connecting rod can be with respect to clump weight turn, the end of the connecting rod
In the crawl hole, the end of the connecting rod is equipped with the first screw thread.
As the improvement of said program, position-limit mechanism is equipped between the connecting rod and clump weight, the position-limit mechanism makes
Ranging from 90 degree of the rotating angle of the relatively described clump weight of the connecting rod.
As the improvement of said program, the sinker is equipped with the limit hole coordinated with the connecting rod front end geometry,
When the connecting rod and the limit hole face, it can stretch into or remove from the limit hole；When the connecting rod stretches into institute
After stating limit hole, the connecting rod can be rotated relative to the limit hole, and be locked with limit hole.
As the improvement of said program, the back side of the clump weight is equipped with the limit hole.
As the improvement of said program, the clump weight grasping mechanism includes horizontal traveller, is set on the horizontal traveller
Sliding block and the movable motor that is slided on the horizontal traveller of the driving sliding block, the sliding block be equipped with telescoping mechanism,
The telescoping mechanism is equipped with crawl arm, and the front end of the crawl arm is equipped with can be arranged with the end of the connecting rod first
Second screw thread of screw thread engagement.
As the improvement of said program, the balance weight mechanism further includes the counterweight around clump weight holding structure setting
Block circulation mechanism, the clump weight circulation mechanism include the directive wheel being set to above and below clump weight holding structure, Yi Jiwei
Around the conveyor chain of directive wheel setting, the conveyor chain includes before the corresponding clump weight holding structure and the back side
The first transmission equipment side and the second transmission equipment side, the conveyor chain is equipped with the first transmission rail, sets in the clump weight holding structure
There are the second transmission rail, the clump weight both sides to be equipped with pulley, the clump weight can be by the pulley in first transmission
It is slided on rail and the second transmission rail.
As the improvement of said program, the clump weight circulation mechanism further includes the braking mechanism being set at pulley, described
It is equipped in clump weight holding structure for making clump weight in clump weight holding structure and the first transmission equipment side of the conveyor chain
Or second transmission equipment side transmission mechanism between the transmission mechanism that moves.
Implement the embodiment of the present invention, has the advantages that：
The balance weight mechanism of the present invention includes sinker, clump weight grasping mechanism, clump weight and clump weight storage machine
Structure, the sinker bypasses the traction system being set at the top of lift trough by steel wire rope and is connect with car, in the traction system
Equipped with weight sensor, the clump weight grasping mechanism is used for clump weight holding structure according to the feedback of the weight sensor
Interior clump weight is fixed on the sinker, or the clump weight on sinker is detached with sinker and is stored in corresponding
In clump weight holding structure.Therefore the present invention can reduce traction electricity according to the weight of the load capacity dynamic regulation counterweight of car
The tractive force that machine needs saves the energy to reduce the operation power of elevator.
Balance weight mechanism of the present invention further includes the clump weight circulation mechanism around clump weight holding structure setting, institute
It includes the directive wheel being set to above and below clump weight holding structure to state clump weight circulation mechanism, and is set around the directive wheel
The conveyor chain set, the conveyor chain include before the corresponding clump weight holding structure and first transmission equipment side at the back side and
Second transmission equipment side, the conveyor chain are equipped with the first transmission rail, the second transmission rail, institute are equipped in the clump weight holding structure
It states clump weight both sides and is equipped with pulley, the clump weight can be by the pulley on the first transmission rail and the second transmission rail
Sliding.Clump weight in clump weight holding structure can quickly be assigned to different clump weights by the clump weight circulation mechanism
It stores in layer, improves the counterweight block buffering and running ability of clump weight holding structure.
Description of the drawings
Fig. 1 is a kind of first embodiment structural schematic diagram of energy-conserving elevator of the present invention；
Fig. 2 is a kind of second embodiment structural schematic diagram of energy-conserving elevator of the present invention；
Fig. 3 is the structural schematic diagram of a kind of sinker of energy-conserving elevator of the present invention, clump weight grasping mechanism and clump weight；
Fig. 4 is a kind of structural schematic diagram of the clump weight of energy-conserving elevator of the present invention；
Fig. 5 is a kind of sectional view of the clump weight and crawl arm of energy-conserving elevator of the present invention；
Fig. 6 is a kind of 3rd embodiment structural schematic diagram of energy-conserving elevator of the present invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.Only this is stated, the present invention occurs in the text or will occur up, down, left, right, before and after, it is inside and outside etc. just
Position word is not the specific restriction to the present invention only on the basis of the attached drawing of the present invention.
As shown in Fig. 1, Fig. 3-Fig. 5, first embodiment of the invention provides a kind of energy-conserving elevator, including car 1 and counterweight
Mechanism 2, the balance weight mechanism 2 includes sinker 3, clump weight grasping mechanism 4, clump weight 5 and clump weight holding structure 6, described
Sinker 3 bypasses the traction system being set at the top of lift trough by steel wire rope and is connect with car 1, and weight is equipped in the traction system
Quantity sensor, the clump weight grasping mechanism 4 is used for will be in clump weight holding structure 6 according to the feedback of the weight sensor
Clump weight 5 is fixed on the sinker 3, or the clump weight 5 on sinker 3 is detached with sinker 3 and is stored in corresponding
Clump weight holding structure 6 in, the clump weight holding structure 6 includes that clump weight stores layer 61, and the clump weight stores layer 61
At the uppermost storey and lowest floor that can be reached set on car 1.
The balance weight mechanism 2 of the present invention is deposited including sinker 3, clump weight grasping mechanism 4, clump weight 5 and clump weight
Laying mechanism 6, the sinker 3 bypass the traction system being set at the top of lift trough by steel wire rope and are connect with car 1, the traction
It is equipped with weight sensor in system, the clump weight grasping mechanism 4 is used for clump weight according to the feedback of the weight sensor
Clump weight 5 in holding structure 6 is fixed on the sinker 3, or the clump weight 5 on sinker 3 is detached with sinker 3
And it is stored in corresponding clump weight holding structure 6.Therefore the present invention can be according to the load capacity dynamic regulation counterweight of car 1
Weight reduces the tractive force that traction motor needs, and to reduce the operation power of elevator, saves the energy.
A kind of operation principle of energy-conserving elevator of the present invention is as follows：
When lift car 1 rests on any one layer, the sinker 3 and the clump weight of the corresponding number of plies store 61 pairs of layer
It connects.The weight sensor is by the load-carrying Real-time Feedback of car 1 to control system, and control system is according to the feedback of weight sensor
Adjust sinker 3 on 5 quantity of clump weight, make car 1 gross mass and counterweight it is of poor quality within a predetermined range, in order to realize
Energy conservation and environmental protection, it is described it is of poor quality should be as small as possible, the parameters such as power of quality and traction motor with specific reference to monolithic clump weight
Setting.Personnel due to taking elevator lifting daily are of substantially equal, and the clump weight storage layer 61 plays counterweight block buffering
Effect.When the people's ratio for taking elevator lifting differs very big, exceed the load of this system, as certain layer of clump weight stores layer 61
Clump weight is piled with, counterweight regulatory function will be suspended, until the clump weight that the clump weight of this layer stores layer 61 is removed again
To sinker.
Part has the elevator of electric energy recovering system, can the energy that had more than needed when elevator lifting be converted into power storage and existed
In battery, it is that traction motor is powered together in high load capacity, plays certain energy-saving effect.But since battery is used for elevator
The efficiency for charge-discharge of system is relatively low, and only in certain specific occasions（As the top layer of full load declines）Electric energy recycling can just be triggered
The shortcomings of system and battery life are short, and maintenance cost is high is still difficult to promote.In contrast, the present invention has energy-saving efficiency
Height, using it is reliable the advantages that, be more easy to promote in civilian elevator.
It in conjunction with Fig. 2, according to a second embodiment of the present invention, is different from the first embodiment in, the clump weight storage
At uppermost storey and lowest floor that layer 61 can be reached set on car 1 and each floor between them.According to this implementation
Example, the clump weight 5 can only no longer be adjusted at uppermost storey and lowest floor, but when needed can be in each floor sedan-chair
Compartment can carry out counterweight adjusting during opening the door.
The regulative mode of clump weight 5 is specifically described below：5 top of the clump weight is equipped with crawl hole 51, and front, which is equipped with, to be connected
Extension bar 52, the front end of the connecting rod 52 are equipped with the fixture block 53 of opposite its side protrusion, and the connecting rod 52 can be with respect to counterweight
The end of 5 turn of block, the connecting rod 52 is located in the crawl hole 51, and the end of the connecting rod 52 is equipped with the first screw thread
54.Position-limit mechanism is equipped between the connecting rod 52 and clump weight 5（It is not drawn into figure）, the position-limit mechanism makes the connecting rod
Ranging from 90 degree of the rotating angle of 52 clump weights 5 relatively.The sinker 3 is equipped with and 52 front end geometry of the connecting rod
The limit hole 31 of cooperation can stretch into or move from the limit hole 31 when the connecting rod 52 and 31 face of limit hole
Go out；After the connecting rod 52 stretches into the limit hole 31, the connecting rod 52 can be rotated relative to the limit hole 31, and with
Limit hole 31 locks.
The clump weight grasping mechanism 4 includes horizontal traveller 41, the sliding block 42 on the horizontal traveller 41 and drives
The movable motor 43 that the dynamic sliding block 42 slides on the horizontal traveller 41, the sliding block 42 are equipped with telescoping mechanism 44, institute
It states telescoping mechanism 44 and is equipped with crawl arm 45, the front end of the crawl arm 45 is equipped with and can be arranged with the end of the connecting rod 52
The first screw thread 54 engagement the second screw thread 46.
When needing self-balanced upper rotary 5, the movable motor 43 drives sliding block 42 to be moved to right over clump weight 5.It is described
Telescoping mechanism 44 can be existing electromagnetism telescoping mechanism 44, and driving crawl arm 45 moves down, and stretch into crawl hole 51.Institute
Stating crawl arm 45 can rotate, and second screw thread 46 is engaged with the first screw thread 54, by connecting rod 52 rotation to limit hole 31
To positive position, position-limit mechanism limitation connecting rod 52 is rotated further at this time, and crawl arm 45 passes through the second screw thread 46 and connecting rod 52
Locked, the telescoping mechanism 44 rises, and clump weight 5 is driven to rise.The movable motor 43 drives sliding block 42 to be moved to sinker 3
Top, make limit hole 31 of the clump weight 5 to positive sinker 3, connecting rod 52 made to stretch into limit hole 31, the crawl arm 45 is anti-
To rotation, connecting rod 52 is made to be locked with limit hole 31, crawl arm 45 is detached from naturally with connecting rod 52.When need by clump weight 5 from
When sinker 3 removes, it is only necessary to reverse operating.
In order to be fixed to each other between clump weight 5, the back side of the clump weight 5 is equipped with the limit hole 31.
In conjunction with Fig. 6, according to a third embodiment of the present invention, the difference is that, the balance weight mechanism 2 is also with second embodiment
Include the clump weight circulation mechanism 7 being arranged around the clump weight holding structure 6, the clump weight circulation mechanism 7 includes being set to
Directive wheel 71 above and below clump weight holding structure 6, and around the conveyor chain 72 of the setting of the directive wheel 71, it is described
Conveyor chain 72 includes before the corresponding clump weight holding structure 6 and first transmission equipment side 73 and the second transmission equipment side at the back side
74, the conveyor chain 72 is equipped with the first transmission rail 75, and the second transmission rail 76, institute are equipped in the clump weight holding structure 6
It states 5 both sides of clump weight and is equipped with pulley 77, the clump weight 5 can be by the pulley 77 in the first transmission rail 75 and second
It is slided on transmission rail 76.
The clump weight circulation mechanism 7 further includes the braking mechanism being set at pulley 77（It is not drawn into figure）, the counterweight
It is equipped in block holding structure 6 for making clump weight 5 in clump weight holding structure 6 and the first transmission equipment side of the conveyor chain 72
73 or second transmission equipment side 74 transmission mechanism between the transmission mechanism that moves（It is not drawn into figure）.
Implement the present embodiment, has the advantages that：Clump weight 5 in clump weight holding structure 6 can be by described
Clump weight circulation mechanism 7 is quickly assigned in different clump weight storage layers 61, improves the clump weight of clump weight holding structure 6
5 bufferings and running ability.
Specifically, by taking office building comes off duty peak period as an example, elevator mainly from the top fully loaded of building and drops to one
Layer.When lift car 1 rests on top layer, passenger is into fashionable, and clump weight grasping mechanism 4 is according to 1 load capacity of car at one layer
Clump weight stores clump weight 5 of taking in layer 61, and is fixed on sinker 3, until counterweight is suitable with 1 gross mass of car.It waits multiplying
Visitor, which enters, to be finished, and traction motor drives car 1 to decline, and clump weight 5 rises at top clump weight holding structure 6.Work as elevator
Car 1 rests on one layer, when passenger leaves, and clump weight grasping mechanism 4 is according to 1 load capacity of car by the counterweight on sinker 3
Block 5 is moved in the clump weight storage layer 61 of top layer.Wait for the rising of car 1 next time.
When the clump weight 5 in the clump weight holding structure 6 of top layer is more than specified quantity, the transmission mechanism is by clump weight
5 are moved on the second transmission rail 76 of the second transmission equipment side 74 of conveyor chain 72, and the both sides of conveyor chain 72 generate weight at this time
Difference, the clump weight 5 will be transmitted chain 72 and transport in the less clump weight storage layer 61 of 5 storage of clump weight.
It is above disclosed to be only a preferred embodiment of the present invention, the power of the present invention cannot be limited with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (5)
1. a kind of energy-conserving elevator, including car and balance weight mechanism, which is characterized in that the balance weight mechanism includes sinker, counterweight
Block grasping mechanism, clump weight and clump weight holding structure, the sinker are bypassed by steel wire rope and are set to draging at the top of lift trough
Draw system to connect with car, weight sensor is equipped in the traction system, the clump weight grasping mechanism is used for according to
Clump weight in clump weight holding structure is fixed on the sinker by the feedback of weight sensor, or will be on sinker
Clump weight is detached with sinker and is stored in corresponding clump weight holding structure, and the clump weight holding structure includes clump weight
Layer is stored, the clump weight storage layer is set at the uppermost storey and lowest floor that car can reach；
The clump weight top is equipped with crawl hole, and front is equipped with connecting rod, and the front end of the connecting rod is convex equipped with its opposite side
The fixture block gone out, the connecting rod can be located at respect to clump weight turn, the end of the connecting rod in the crawl hole, the company
The end of extension bar is equipped with the first screw thread；
Position-limit mechanism is equipped between the connecting rod and clump weight, the position-limit mechanism makes the relatively described clump weight of the connecting rod
Rotating angle ranging from 0-90 degree；The sinker is equipped with the limit hole coordinated with the connecting rod front end geometry, works as institute
When stating connecting rod with the limit hole face, it can stretch into or remove from the limit hole；
After the connecting rod stretches into the limit hole, the connecting rod can be rotated relative to the limit hole, and and limit hole
Locking；The clump weight grasping mechanism includes horizontal traveller, the sliding block on the horizontal traveller and the driving sliding block
The movable motor slided on the horizontal traveller, the sliding block are equipped with telescoping mechanism, and the telescoping mechanism is equipped with crawl
The front end of arm, the crawl arm is equipped with the second screw thread that the first screw thread that can be arranged with the end of the connecting rod engages.
2. energy-conserving elevator as described in claim 1, which is characterized in that the clump weight storage layer is set to what car can reach
At uppermost storey and lowest floor and each floor between them.
3. energy-conserving elevator as claimed in claim 2, which is characterized in that the back side of the clump weight is equipped with limit hole.
4. energy-conserving elevator as claimed in claim 3, which is characterized in that the balance weight mechanism further includes being deposited around the clump weight
The clump weight circulation mechanism of laying mechanism setting, the clump weight circulation mechanism include being set to above and below clump weight holding structure
Directive wheel, and around the conveyor chain of directive wheel setting, the conveyor chain includes the corresponding clump weight storage
First transmission equipment side and the second transmission equipment side at before the mechanism and back side, the conveyor chain is equipped with the first transmission rail, described to match
The second transmission rail is equipped in pouring weight holding structure, the clump weight both sides are equipped with pulley, and the clump weight can pass through the cunning
Wheel slides on the first transmission rail and the second transmission rail.
5. energy-conserving elevator as claimed in claim 4, which is characterized in that the clump weight circulation mechanism further includes being set at pulley
Braking mechanism, be equipped with for making clump weight in clump weight holding structure and the chain in the clump weight holding structure
The transmission mechanism moved between the first transmission equipment side or the second transmission equipment side of item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610769132.XA CN106276548B (en) | 2016-08-31 | 2016-08-31 | A kind of energy-conserving elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610769132.XA CN106276548B (en) | 2016-08-31 | 2016-08-31 | A kind of energy-conserving elevator |
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| Publication Number | Publication Date |
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| CN106276548A CN106276548A (en) | 2017-01-04 |
| CN106276548B true CN106276548B (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610769132.XA Active CN106276548B (en) | 2016-08-31 | 2016-08-31 | A kind of energy-conserving elevator |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108584650B (en) * | 2018-07-20 | 2023-12-08 | 广州广日电梯工业有限公司 | Weight-adjustable counterweight method and counterweight system thereof |
| CN109748181B (en) * | 2019-01-28 | 2020-05-12 | 浙江大学 | Elevator adjusting device capable of automatically adjusting weight of car |
| CN114229661B (en) * | 2021-11-26 | 2023-08-11 | 凯帝斯电梯股份有限公司 | Energy-saving elevator and counterweight distribution method thereof |
| CN116553343A (en) * | 2023-06-01 | 2023-08-08 | 北京众驰自动化设备有限公司 | Intelligent drawer type elevator counterweight method and device based on carbon neutralization energy saving |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5496313B1 (en) * | 2012-12-18 | 2014-05-21 | 東芝エレベータ株式会社 | elevator |
| CN203754186U (en) * | 2013-02-27 | 2014-08-06 | 东芝电梯株式会社 | Counterweight changeable lift |
| JP5704734B1 (en) * | 2014-03-14 | 2015-04-22 | 東芝エレベータ株式会社 | Elevator group management control device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009215049A (en) * | 2008-03-12 | 2009-09-24 | Toshiba Elevator Co Ltd | Variable speed elevator |
| JP5623496B2 (en) * | 2012-12-17 | 2014-11-12 | 東芝エレベータ株式会社 | Weight variable elevator |
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2016
- 2016-08-31 CN CN201610769132.XA patent/CN106276548B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5496313B1 (en) * | 2012-12-18 | 2014-05-21 | 東芝エレベータ株式会社 | elevator |
| CN203754186U (en) * | 2013-02-27 | 2014-08-06 | 东芝电梯株式会社 | Counterweight changeable lift |
| JP5704734B1 (en) * | 2014-03-14 | 2015-04-22 | 東芝エレベータ株式会社 | Elevator group management control device |
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| CN106276548A (en) | 2017-01-04 |
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