CN108842615A - A kind of bridge maintenance device - Google Patents
A kind of bridge maintenance device Download PDFInfo
- Publication number
- CN108842615A CN108842615A CN201810865672.7A CN201810865672A CN108842615A CN 108842615 A CN108842615 A CN 108842615A CN 201810865672 A CN201810865672 A CN 201810865672A CN 108842615 A CN108842615 A CN 108842615A
- Authority
- CN
- China
- Prior art keywords
- bridge
- fixing seat
- principal post
- operation storehouse
- maintenance device
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
Abstract
The invention discloses a kind of bridge maintenance devices, it is intended to and facilitate worker to safeguard bridge, its key points of the technical solution are that：A kind of bridge maintenance device, fixing seat including being set to bridge floor, it is set to the fixing seat and extends to the principal post of bridge subjacent, it is set to the principal post lower end surface and the operation storehouse for worker operation, the operation storehouse is provided with the abutting component for being connected to bridge bottom surface, the abutting component includes being fixed on the operation storehouse and in vertically set first hydraulic cylinder, it is fixedly connected on the first hydraulic cylinder output shaft and abuts the abutting block for having bridge bottom surface, the fixing seat bottom surface is provided with four rolling, the fixing seat is provided with the first driving motor of driving four rolling rotation, the fixing seat is provided with the safety device for preventing fixing seat mobile towards bridge floor edge.A kind of bridge maintenance device of the invention, can facilitate worker's maintenance bridge, and improve maintenance efficiency.
Description
Technical field
The invention belongs to municipal apparatus fields, more specifically, it relates to a kind of bridge maintenance device.
Background technique
The low-lying places such as the riverbed mountain valley passed through along highway need to be arranged bridge pier, the supporter between bridge pier and girder
Equipment outside system and bridge pier needs road administration engineering staff regularly to overhaul and conserve, to prevent bridge from serious damage occur
It is bad.But higher bridge is since highly higher, common maintenance vehicles lift height is not achieved, therefore some with a varied topography
Place need to be arranged suspension ladder necessary maintenance upkeep operation carried out to bridge, suspension ladder carry out using when suspension ladder be used for
The main body of operation is located at the outside of bridge, hangs the terraced other end and is attached with bridge, due to suspension ladder be located at bridge outside its
Structure must have enough intensity to guarantee to conserve the personal safety of service personnel, but the equipment that current maintenance maintenance uses
Simpler and cruder, security reliability is lower, is easy to appear safety accident, and current suspension ladder is completed in a maintenance point operation
After need manpower movement suspension ladder to reach another maintenance point, labor intensity is larger and working efficiency is low.
Therefore it needs to propose the new technical solution of one kind to solve the above problems.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of bridge maintenance device, can facilitate
Worker's maintenance bridge, and improve maintenance efficiency.
To achieve the above object, the present invention provides following technical solutions：A kind of bridge maintenance device, including it is set to bridge
The fixing seat in face, is set to the principal post lower end surface simultaneously at the principal post for being set to the fixing seat and extending to bridge subjacent
For the operation storehouse of worker operation, the operation storehouse is provided with the abutting component for being connected to bridge bottom surface, and the abutting component includes
It is fixed on the operation storehouse and is in vertically set first hydraulic cylinder, is fixedly connected on the first hydraulic cylinder output shaft simultaneously
The abutting block for having bridge bottom surface is abutted, the fixing seat bottom surface is provided with four rolling, and the fixing seat is provided with driving four
First driving motor of idler wheel rotation, the fixing seat are provided with the safety device for preventing fixing seat mobile towards bridge floor edge.
By using above-mentioned technical proposal, be connected to the bottom surface of bridge by abutting block, thus reach through fixing seat and
It abuts block and clamps bridge, and ensure to operate storehouse and principal post and be fixed on bridge, facilitate driving fixing seat to move by the first driving motor
It is dynamic, fixing seat and operation storehouse are moved to the next maintenance maintenance point of bridge to reach.
The present invention is further arranged to：The safety device includes being fixedly connected on the fixing seat and being tilted down to set
The second oil hydraulic cylinder for setting, is set to the emergency seat and is connected to bridge the emergency seat for being set to the second oil hydraulic cylinder output shaft
The safe crawler belt in face, the second oil hydraulic cylinder output shaft are in be arranged towards bridge floor edge direction.
By using above-mentioned technical proposal, elongate axis is exported by the second oil hydraulic cylinder, so that safe crawler belt be made to be connected to road
Face after safe crawler belt is connected to road surface, effectively prevent fixing seat towards bridge floor by the frictional force between safe crawler belt and road surface
Edge direction is mobile, and can support fixing seat by the second oil hydraulic cylinder, emergency seat, improves security performance of the invention.
The present invention is further arranged to：The safe track surface is provided with one layer of anti-slip rubber.
By using above-mentioned technical proposal, the surface of safe crawler belt is provided with one layer of anti-slip rubber, can effectively increase peace
Frictional force between full crawler belt and road surface, effectively fixes the position of fixing seat.
The present invention is further arranged to：The block that abuts is provided with the rolling for facilitating and abutting block relative to bridge basal slip
Column.
By using above-mentioned technical proposal, is facilitated by roller and abut block relative to bridge sliding, operation storehouse is facilitated to follow
Fixing seat is mobile.
The present invention is further arranged to：The fixing seat is provided with the driving mechanism that driving principal post moves up and down, the drive
Motivation structure include be opened in the fixing seat and worn for principal post lift span, be fixedly connected on the principal post side wall and in vertical
The rack gear of setting, is fixedly connected on described the at the second driving motor for being fixedly connected on the fixing seat and principal post being driven to go up and down
Two driving motor output shafts and the driving gear engaged with the rack gear.
By using above-mentioned technical proposal, storehouse is operated relative to bridge bottom surface when needing that principal post is driven to move up and down and adjusting
Position when, by the second driving motor drive sliding tooth wheel rotation, and by gear drive principal post move up and down, to adjust
Position of the storehouse relative to bridge bottom surface is operated, worker is facilitated to carry out maintenance to bridge bottom surface.
The present invention is further arranged to：The principal post upper surface, which is fixedly connected with, can be connected to the fixing seat upper surface
Safe block.
It by using above-mentioned technical proposal, can be fallen off out of lift span to avoid principal post by safe block, and ensure principal post
It is connected to fixing seat, to improve security performance of the invention.
The present invention is further arranged to：The operation storehouse is rotationally connected with the principal post, and the operation storehouse rotation is axial to be in
It is vertically arranged, control group of the control operation storehouse relative to principal post rotational angle is provided between the operation storehouse and the principal post
Part.
By using above-mentioned technical proposal, control is facilitated to operate the lower section that storehouse turns to bridge by control assembly in this way,
Facilitate worker's maintenance bridge.
The present invention is further arranged to：The control assembly includes the driven gear for being fixedly connected on the principal post, fixation
Be connected to it is described operation storehouse third driving motor, be fixedly connected on the third driving motor output shaft and with the driven tooth
The driving gear of engagement is taken turns, the axial driving gear rotation is in be vertically arranged.
By using above-mentioned technical proposal, when needing that operation storehouse is driven to rotate and turning to operation storehouse below bridge,
Driving gear rotation is driven by third driving motor, so that driving gear be made to rotate relative to driven gear, and makes to operate storehouse
It turns to below bridge, while static by third driving motor, keeps driving gear and driven gear opposing stationary, it can be effective
The angle that fixed operation storehouse is rotated relative to principal post.
In conclusion the invention has the advantages that：
When needing maintenance bridge bottom surface, drives emergency seat to move diagonally downward by the second oil hydraulic cylinder, make safe crawler belt
It is connected to road surface, while the rotation of sliding tooth wheel is driven by the second driving motor, drives gear driving rack and principal post decline, so
Driving gear rotation is driven by third driving motor afterwards, to make operation storehouse turn to below bridge, and first hydraulic cylinder
Elongate axis is exported, abutting block is made to be connected to bridge bottom surface, such worker can operate in operation storehouse, carry out maintenance bridge
Soffit；When needing the next position of maintenance bridge, idler wheel rotation is driven by the first driving motor, to make to fix
Seat is mobile, and fixing seat is mobile and drives operation storehouse synchronizing moving so that it is convenient to the different position of worker's maintenance bridge.
Detailed description of the invention
Fig. 1 is the perspective view one of the present embodiment；
Fig. 2 is the cross-sectional view of the present embodiment；
Fig. 3 is the present embodiment perspective view two.
Detailed description of the invention：1, fixing seat；2, principal post；3, storehouse is operated；4, first hydraulic cylinder；5, block is abutted；6, idler wheel；7, first
Driving motor；8, roller；9, the second oil hydraulic cylinder；10, emergency seat；11, safe crawler belt；12, anti-slip rubber；13, lift span；14,
Rack gear；15, the second driving motor；16, gear is driven；17, safe block；18, driven gear；19, third driving motor；20, main
Moving gear.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Wherein identical components are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
As depicted in figs. 1 and 2, a kind of bridge maintenance device, the fixing seat 1 including being set to bridge floor, fixing seat 1 are equipped with
The principal post 2 of bridge subjacent is extended to, 2 lower end surface of principal post is equipped with the operation storehouse 3 for worker operation, and operation storehouse 3 is provided with
It is connected to the abutting component of bridge bottom surface, abutting component includes being fixedly connected on operation storehouse 3 and in vertically set first
Hydraulic cylinder 4,4 output shaft of first hydraulic cylinder are fixedly connected with the abutting block 5 for being connected to bridge bottom surface.It is supported in this way by abutting block 5
It is connected to the bottom surface of bridge, to reach through fixing seat 1 and abut the clamping bridge of block 5, and ensures that operation storehouse 3 and principal post 2 are fixed
In bridge.The bottom surface of fixing seat 1 is equipped with four rolling 6 simultaneously, and fixing seat 1 is equipped with what driving four rolling 6 rotated
First driving motor 7, and the surface for abutting block 5 towards bridge is provided with several and facilitates abutting block 5 relative to bridge bottom surface
The roller 8 of sliding facilitates driving fixing seat 1 mobile, moves fixing seat 1 and operation storehouse 3 to reach by the first driving motor 7
It moves to the next maintenance point of bridge, and is facilitated by roller 8 and abut block 5 relative to bridge sliding, operation storehouse 3 is facilitated to follow fixation
Seat 1 is mobile.
It in order to ensure fixing seat 1 is fixed on bridge, and avoids fixing seat 1 mobile towards bridge floor edge, improves the present invention
Security performance, as shown in Figures 2 and 3, fixing seat 1 is provided with safety device, and safety device includes being fixedly connected on fixing seat 1
The second oil hydraulic cylinder 9,9 output shaft of the second oil hydraulic cylinder is tilted down setting, and 9 output shaft of the second oil hydraulic cylinder is towards bridge floor side
It is arranged along direction, 9 output shaft of the second oil hydraulic cylinder is equipped with emergency seat 10, and emergency seat 10 is rotatably connected to the safety for being connected to bridge floor
Crawler belt 11, it is in horizontally disposed that safe crawler belt 11, which rotates axial, and the surface of safe crawler belt 11 is provided with one layer of anti-slip rubber 12.
Elongate axis is exported by the second oil hydraulic cylinder 9 in this way, so that safe crawler belt 11 be made to be connected to road surface, safe crawler belt 11 is connected to road surface
Afterwards, it effectively prevent fixing seat 1 towards the movement of bridge floor edge direction by the frictional force between safe crawler belt 11 and road surface, and passes through
Second oil hydraulic cylinder 9, emergency seat 10 can support fixing seat 1, improve security performance of the invention；And the surface of safe crawler belt 11
It is provided with one layer of anti-slip rubber 12, the frictional force between safe crawler belt 11 and road surface can be effectively increased, effectively fix fixation
The position of seat 1.
In order to facilitate position of the operation storehouse 3 relative to bridge bottom surface is adjusted, as shown in Figure 1, fixing seat 1 is provided with driving master
The driving mechanism that column 2 moves up and down, driving mechanism include the lift span 13 for being opened in fixing seat 1 and wearing for principal post 2, and main
The side wall of column 2 is fixed with rack gear 14, rack gear 14 in being vertically arranged, fixing seat 1 be fixedly connected with that driving principal post 2 moves up and down the
Two driving motors 15,15 output shaft of the second driving motor is in horizontally disposed, and 15 output shaft of the second driving motor is fixedly connected
There is the driving gear 16 engaged with rack gear 14.In this way when need that principal post 2 is driven to move up and down and adjust operation storehouse 3 relative to bridge
When the position of bottom surface, driving gear 16 is driven to rotate by the second driving motor 15, and drive by gear and move down on principal post 2
It is dynamic, to adjust position of the operation storehouse 3 relative to bridge bottom surface, worker is facilitated to carry out maintenance to bridge bottom surface.
As shown in Figure 1, the upper surface of principal post 2 is fixedly connected with safe block 17,17 side wall of safe block protrudes from the side of principal post 2
Wall, and 17 lower end surface of safe block can be connected to the upper surface of fixing seat 1.In this way by safe block 17 can to avoid principal post 2 from
It falls off in lift span 13, and ensures that principal post 2 is connected to fixing seat 1, to improve security performance of the invention.
It is moved to below bridge in order to facilitate the operation of storehouse 3, shown in described 2 and Fig. 3, the setting of operation storehouse 3 is in be rotationally connected with
Principal post 2, control box rotation is axial in being vertically arranged, and operate be provided between storehouse 3 and principal post 2 control operation storehouse 3 relative to
The control assembly of 2 rotational angle of principal post.Control assembly includes the driven gear 18 for being fixedly connected on the principal post 2, driven gear
18 close to 2 lower end surface of principal post, and operates storehouse 3 and be fixedly connected with driving and control the third driving motor that operation storehouse 3 rotates
19,19 output shaft of third driving motor is in be vertically arranged, and 19 output shaft of third driving motor is fixedly connected with and driven tooth
The driving gear 20 of 18 engagement of wheel.In this way when needing that operation storehouse 3 is driven to rotate and turning to operation storehouse 3 below bridge, lead to
Crossing third driving motor 19 drives driving gear 20 to rotate, so that driving gear 20 be made to rotate relative to driven gear 18, and makes
Operation storehouse 3 turns to below bridge, while static by third driving motor 19, keeps driving gear 20 and driven gear 18 opposite
It is static, it can the effective angle that is rotated relative to principal post 2 of fixed operation storehouse 3.
When needing maintenance bridge bottom surface, drives emergency seat 10 to move diagonally downward by the second oil hydraulic cylinder 9, make to pacify
Full crawler belt 11 is connected to road surface, while being rotated by the second driving motor 15 driving driving gear 16, drives 16 sliding tooth of gear
Item 14 and principal post 2 decline, and then drive driving gear 20 to rotate by third driving motor 19, so that operation storehouse 3 be made to turn to
Below bridge, and first hydraulic cylinder 4 exports elongate axis, so that abutting block 5 is connected to bridge bottom surface, such worker can grasp
Make operation in storehouse 3, carries out maintenance bridge bottom surface；When needing the next position of maintenance bridge, pass through the first driving
Motor 7 drives idler wheel 6 to rotate, to keep fixing seat 1 mobile, fixing seat 1 is mobile and drives operation 3 synchronizing moving of storehouse, this sample prescription
Just the different position of worker's maintenance bridge.
Specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
It can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as in this hair
All by the protection of Patent Law in bright scope of the claims.
Claims (8)
1. a kind of bridge maintenance device, the fixing seat including being set to bridge floor（1）, be set to the fixing seat（1）And it extends to
The principal post of bridge subjacent（2）, be set to the principal post（2）Lower end surface and operation storehouse for worker operation（3）, feature exists
In：The operation storehouse（3）It is provided with the abutting component for being connected to bridge bottom surface, the abutting component includes being fixed on the operation
Storehouse（3）It and is in vertically set first hydraulic cylinder（4）, be fixedly connected on the first hydraulic cylinder（4）Output shaft simultaneously abuts
There is the abutting block of bridge bottom surface（5）, the fixing seat（1）Bottom surface is provided with four rolling（6）, the fixing seat（1）It is provided with
Drive four rolling（6）First driving motor of rotation（7）, the fixing seat（1）Being provided with prevents fixing seat（1）Towards bridge floor
The mobile safety device in edge.
2. a kind of bridge maintenance device according to claim 1, it is characterised in that：The safety device includes being fixedly connected
In the fixing seat（1）And the second oil hydraulic cylinder of the setting that is tilted down（9）, be set to second oil hydraulic cylinder（9）Output shaft
Emergency seat（10）, be set to the emergency seat（10）And it is connected to the safe crawler belt of bridge floor（11）, second oil hydraulic cylinder（9）
Output shaft is in be arranged towards bridge floor edge direction.
3. a kind of bridge maintenance device according to claim 2, it is characterised in that：The safe crawler belt（11）Surface setting
There is one layer of anti-slip rubber（12）.
4. a kind of bridge maintenance device according to claim 1, it is characterised in that：The abutting block（5）It is provided with conveniently
Abut block（5）Roller relative to bridge basal slip（8）.
5. a kind of bridge maintenance device according to claim 1, it is characterised in that：The fixing seat（1）It is provided with driving
Principal post（2）The driving mechanism moved up and down, the driving mechanism include being opened in the fixing seat（1）And for principal post（2）It wears
Lift span（13）, be fixedly connected on the principal post（2）Side wall and in the rack gear that is vertically arranged（14）, be fixedly connected on it is described solid
Reservation（1）And drive principal post（2）Second driving motor of lifting（15）, be fixedly connected on second driving motor（15）Output
Axis and with the rack gear（14）The driving gear of engagement（16）.
6. a kind of bridge maintenance device according to claim 5, it is characterised in that：The principal post（2）Upper surface is fixed to be connected
The fixing seat can be connected to by being connected to（1）The safe block of upper surface（17）.
7. a kind of bridge maintenance device according to claim 1, it is characterised in that：The operation storehouse（13）It is rotationally connected with
The principal post（2）, the operation storehouse（3）Axial rotation is in be vertically arranged, the operation storehouse（3）With the principal post（2）Between set
It is equipped with control operation storehouse（3）Relative to principal post（2）The control assembly of rotational angle.
8. a kind of bridge maintenance device according to claim 7, it is characterised in that：The control assembly includes being fixedly connected
In the principal post（2）Driven gear（18）, be fixedly connected on the operation storehouse（3）Third driving motor（19）, fixed connect
It is connected to the third driving motor（19）Output shaft and with the driven gear（18）The driving gear of engagement（20）, the active
Gear（20）Axial rotation is in be vertically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810865672.7A CN108842615A (en) | 2018-08-01 | 2018-08-01 | A kind of bridge maintenance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810865672.7A CN108842615A (en) | 2018-08-01 | 2018-08-01 | A kind of bridge maintenance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108842615A true CN108842615A (en) | 2018-11-20 |
Family
ID=64192490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810865672.7A Pending CN108842615A (en) | 2018-08-01 | 2018-08-01 | A kind of bridge maintenance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108842615A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005315A (en) * | 2019-12-19 | 2020-04-14 | 刘童童 | Bridge bottom surface detection structure and detection method thereof |
| CN111609289A (en) * | 2020-06-09 | 2020-09-01 | 陈鹏 | Bridge crack detection device |
| CN112342909A (en) * | 2020-11-03 | 2021-02-09 | 温州融宸科技有限公司 | Bridge maintenance device and use method thereof |
| CN113944112A (en) * | 2021-11-15 | 2022-01-18 | 广西科技大学 | Construction method for rebuilding and expanding bridge |
| CN114134844A (en) * | 2021-11-05 | 2022-03-04 | 广西路桥工程集团有限公司 | A curing means for public road bridge roof beam |
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| US3608669A (en) * | 1969-12-02 | 1971-09-28 | Bridge Painting Inc | Bridge-painting apparatus and method |
| CN85103124A (en) * | 1985-04-23 | 1986-10-22 | 日本轻金属有限公司 | The tool car that the sky way bridge is for building |
| CN200981976Y (en) * | 2006-03-14 | 2007-11-28 | 中铁工程设计咨询集团有限公司 | Checking vehicle for railway passenger transport private line concrete box-shape bridge |
| CN201428110Y (en) * | 2009-04-10 | 2010-03-24 | 江西蓝天学院 | Maintenance and detection working vehicle for light bridges |
| CN205741945U (en) * | 2016-05-07 | 2016-11-30 | 中国建筑第七工程局有限公司 | A kind of hanging ladder for bridge maintenance |
| CN106638299A (en) * | 2017-01-18 | 2017-05-10 | 湖南瑞涪科技实业有限公司 | Multifunctional operation platform and construction method |
| CN106988214A (en) * | 2017-04-15 | 2017-07-28 | 浙江兴远建设有限公司 | A kind of construction equipment of municipal overhead anti-collision wall |
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2018
- 2018-08-01 CN CN201810865672.7A patent/CN108842615A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3608669A (en) * | 1969-12-02 | 1971-09-28 | Bridge Painting Inc | Bridge-painting apparatus and method |
| CN85103124A (en) * | 1985-04-23 | 1986-10-22 | 日本轻金属有限公司 | The tool car that the sky way bridge is for building |
| CN200981976Y (en) * | 2006-03-14 | 2007-11-28 | 中铁工程设计咨询集团有限公司 | Checking vehicle for railway passenger transport private line concrete box-shape bridge |
| CN201428110Y (en) * | 2009-04-10 | 2010-03-24 | 江西蓝天学院 | Maintenance and detection working vehicle for light bridges |
| CN205741945U (en) * | 2016-05-07 | 2016-11-30 | 中国建筑第七工程局有限公司 | A kind of hanging ladder for bridge maintenance |
| CN106638299A (en) * | 2017-01-18 | 2017-05-10 | 湖南瑞涪科技实业有限公司 | Multifunctional operation platform and construction method |
| CN106988214A (en) * | 2017-04-15 | 2017-07-28 | 浙江兴远建设有限公司 | A kind of construction equipment of municipal overhead anti-collision wall |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005315A (en) * | 2019-12-19 | 2020-04-14 | 刘童童 | Bridge bottom surface detection structure and detection method thereof |
| CN111609289A (en) * | 2020-06-09 | 2020-09-01 | 陈鹏 | Bridge crack detection device |
| CN112342909A (en) * | 2020-11-03 | 2021-02-09 | 温州融宸科技有限公司 | Bridge maintenance device and use method thereof |
| CN114134844A (en) * | 2021-11-05 | 2022-03-04 | 广西路桥工程集团有限公司 | A curing means for public road bridge roof beam |
| CN113944112A (en) * | 2021-11-15 | 2022-01-18 | 广西科技大学 | Construction method for rebuilding and expanding bridge |
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Application publication date: 20181120 |