CN108033409A - It is a kind of to facilitate the lifting gear repaired in worker room - Google Patents
It is a kind of to facilitate the lifting gear repaired in worker room Download PDFInfo
- Publication number
- CN108033409A CN108033409A CN201711126019.0A CN201711126019A CN108033409A CN 108033409 A CN108033409 A CN 108033409A CN 201711126019 A CN201711126019 A CN 201711126019A CN 108033409 A CN108033409 A CN 108033409A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- bottom plate
- plate
- motion bar
- thread cap
- 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- Withdrawn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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Movable Scaffolding (AREA)
Abstract
The invention discloses a kind of lifting gear for facilitating and being repaired in worker room, including bottom plate, the upper surface of the bottom plate is fixedly connected by telescopic rod with the lower surface of support plate, the upper surface of the bottom plate is fixedly connected with the lower surface of driving device, the outer surface thread of the driving device is connected with thread cap, the lower surface of the thread cap is fixedly connected with the upper surface of the first carriage, first carriage is opened in the upper surface of bottom plate, and the upper surface of the thread cap is fixedly connected with the bottom of the first motion bar.This facilitates the lifting gear repaired in worker room, pass through the mutual cooperation between motor, threaded post, thread cap, the first sliding groove, the first sliding block, the first motion bar, the first fixed block, the first axis pin, the second axis pin, the second fixed block, the second sliding block, the second sliding slot, fixed plate and supporting block, pendent lamp is carried out maintenance on the supporting plate so that staff can stand, so as to facilitate maintenance of the staff to electric light.
Description
Technical field
The present invention relates to field of mechanical technique, is specially a kind of lifting gear for facilitating and being repaired in worker room.
Background technology
Pendent lamp refers to be lifted on the flawless finish headlamp in indoor ceiling.Pendent lamp is either with electric wire or with iron branch
Hanging, all cannot hang too short, hinder the normal sight of people or make us feeling dazzling.
By taking the pendent lamp of dining room as an example, preferable height is that a pond light is formed on dining table, but will not be hindered on table
The sight that everybody mutually hopes.Current pendent lamp hangs branch and has loaded onto spring or height adjuster, can be adapted to the bottom of the building and needs of different height
Property.
In life, the staff of electric pendent lamp is repaired when being carried out maintenance to pendent lamp, is stood in ladder
On pendent lamp is carried out maintenance, but the stability of ladder is bad, and staff is accidentally easy for so that ladder rocks generation
Tilt, so that staff falls down from ladder, so as to make troubles to maintenance of the staff to pendent lamp.
The content of the invention
(1) technical problem solved
In view of the deficiencies of the prior art, the present invention provides a kind of lifting gear for facilitating and being repaired in worker room, solve
In life, the staff of electric pendent lamp is repaired when being carried out maintenance to pendent lamp, is stood on ladder to pendent lamp
Carrying out maintenance, but the stability of ladder is bad, staff is accidentally easy for so that ladder rocks run-off the straight, so that
So that staff falls down from ladder, so that the problem of making troubles to maintenance of the staff to pendent lamp.
(2) technical solution
To achieve the above object, the present invention provides following technical solution：It is a kind of to facilitate the lifting gear repaired in worker room,
Including bottom plate, the upper surface of the bottom plate is fixedly connected by telescopic rod with the lower surface of support plate, the upper surface of the bottom plate
It is fixedly connected with the lower surface of driving device, the outer surface thread of the driving device is connected with thread cap, the thread cap
Lower surface is fixedly connected with the upper surface of the first carriage, and first carriage is opened in the upper surface of bottom plate, described
The upper surface of thread cap is fixedly connected with the bottom of the first motion bar, and the back side on the first motion bar top passes through the first axis pin
It is hinged with the front of the first fixed block bottom, the upper surface of first fixed block is fixedly connected with the lower surface of support plate, institute
The back side for stating the first motion bar is hinged by the front of the second axis pin and the second motion bar, the back side of the second motion bar bottom
It is hinged by the 3rd axis pin and the front on the second fixed block top, the lower surface of the second fixed block and the upper surface of bottom plate are fixed and connected
Connect, the top of second motion bar is fixedly connected with the lower surface of the second carriage, and second carriage is opened in
The lower surface of support plate, has been fixedly connected with connecting plate, and the phase of two connecting plates at left and right sides of the support plate upper surface
Opposite is fixedly connected with the left and right ends of connecting rod respectively, and the lower surface of the bottom plate passes through electric pushrod and the upper table of fixed plate
Face is fixedly connected, and the lower surface of the fixed plate is fixedly connected with the upper surface of supporting block, and the lower surface of the bottom plate, which is fixed, to be connected
Universal wheel is connected to, the right flank of the bottom plate is fixedly connected with handrail.
Preferably, the driving device includes motor, and the lower surface of the motor body and the upper surface of bottom plate, which are fixed, to be connected
Connect, the output shaft of the motor is fixedly connected with one end of threaded post, and the outer surface thread of the threaded post is connected to thread cap
Inner surface.
Preferably, first carriage includes the first sliding groove, and the first sliding groove is opened in the upper surface of bottom plate, institute
State and the first sliding block is slidably connected in the first sliding groove, the upper surface of first sliding block is fixedly connected with the lower surface of thread cap.
Preferably, second carriage includes the second sliding slot, and second sliding slot is opened in the following table of support plate
Face, the second sliding block is slidably connected in second sliding slot, the lower surface and the top of the second motion bar of second sliding block are consolidated
Fixed connection.
Preferably, the quantity of the supporting block is four, and four supporting blocks are located at the corner of fixed plate lower surface respectively
Place, the quantity of the universal wheel is four, and four universal wheels are located at the four corners of bottom plate lower surface, the electric pushrod respectively
Quantity be two, and two electric pushrods respectively be located at fixed plate upper surface the left and right sides.
Preferably, the upper surface of the bottom plate is respectively arranged with storage battery and control panel, the output terminal of the storage battery
It is electrically connected with the input terminal of control panel, the input terminal of the output terminal of the control panel respectively with motor and electric pushrod is electrically connected
Connect.
(3) beneficial effect
The present invention provides a kind of lifting gear for facilitating and being repaired in worker room, possesses following beneficial effect：
(1), this facilitates the lifting gear repaired in worker room, passes through motor, threaded post, thread cap, the first sliding groove, first
Sliding block, the first motion bar, the first fixed block, the first axis pin, the second axis pin, the second fixed block, the second sliding block, the second sliding slot, branch
Mutual cooperation between fagging, electric pushrod, fixed plate and supporting block so that electric pushrod extends downwards, while drives fixation
Plate moves down, and the supporting block under fixed plate is contacted with ground, so that universal wheel soars, then causes motor to rotate forward work
Threaded post is driven to rotate, under the threaded connection effect of threaded post and thread cap so that thread cap drives the first sliding block along the
One sliding slot is moved to the left, and thread cap drives the first motion bar to be moved up by the first axis pin, while the first motion bar is led to
Crossing the second axis pin drives the second motion bar to be moved to the left and raise, so that support plate is in the first motion bar and the second motion bar
Interaction under raise pendent lamp is carried out maintenance on the supporting plate so that staff can stand, so as to facilitate work
Make maintenance of the personnel to electric light.
(2), this facilitates the lifting gear repaired in worker room, by setting control panel so that the output of control panel
The input terminal respectively with motor and electric pushrod is held to be electrically connected, so as to facilitate staff to motor and electric pushrod work shape
The control of state, and which has a compact structure and a reasonable design of the present invention, it is highly practical.
Brief description of the drawings
Fig. 1 is the cross-sectional view that the present invention faces；
Fig. 2 is the structure diagram that the present invention faces.
In figure：1 bottom plate, 2 telescopic rods, 3 driving devices, 31 motors, 32 threaded posts, 4 thread caps, 5 first carriages, 51
The first sliding groove, 52 first sliding blocks, 6 first motion bars, 7 first axis pins, 8 first fixed blocks, 9 second axis pins, 10 second motion bars,
11 the 3rd axis pins, 12 second fixed blocks, 13 second carriages, 131 second sliding slots, 132 second sliding blocks, 14 support plates, 15 connect
Fishplate bar, 16 connecting rods, 17 electric pushrods, 18 fixed plates, 19 supporting blocks, 20 universal wheels, 21 handrails, 22 storage batteries, 23 chains of command
Plate.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
As shown in Figs. 1-2, the present invention provides a kind of technical solution：It is a kind of to facilitate the lifting gear repaired in worker room, bag
Bottom plate 1 is included, the upper surface of bottom plate 1 is fixedly connected with the lower surface of support plate 14 by telescopic rod 2, by setting telescopic rod 2, made
14 oscilaltion of support plate when it is more steady, the upper surface of bottom plate 1 is fixedly connected with the lower surface of driving device 3, driving fill
The outer surface thread for putting 3 is connected with thread cap 4, and driving device 3 includes motor 31, lower surface and the bottom plate 1 of 31 fuselage of motor
Upper surface is fixedly connected, and the output shaft of motor 31 is fixedly connected with one end of threaded post 32, and the outer surface thread of threaded post 32 connects
The inner surface of thread cap 4 is connected on, the lower surface of thread cap 4 is fixedly connected with the upper surface of the first carriage 5, is driven by setting
Dynamic device 3, when motor 31 rotates forward work, motor 31 drives threaded post 32 to rotate forward, and connects in the screw thread of threaded post 32 and thread cap 4
Connecing under effect so that thread cap 4 is moved to the left by the first sliding block 52 along the first sliding groove 51, when motor 31 inverts work,
Motor 31 drives threaded post 32 to invert, under the threaded connection effect of threaded post 32 and thread cap 4 so that thread cap 4 passes through the
One sliding block 52 moves right along the first sliding groove 51, and the first carriage 5 is opened in the upper surface of bottom plate 1, the first carriage 5
Including the first sliding groove 51, the first sliding groove 51 is opened in the upper surface of bottom plate 1, and the first sliding block is slidably connected in the first sliding groove 51
52, the upper surface of the first sliding block 52 is fixedly connected with the lower surface of thread cap 4, the upper surface of thread cap 4 and the first motion bar 6
Bottom is fixedly connected, by setting the first carriage 5 so that thread cap 4 acts on bottom left in the threaded connection with threaded post 32
It is more steady when moving right so that thread cap 4 will not rotate, the back side on 6 top of the first motion bar by the first axis pin 7 with
The front of first fixed block, 8 bottom is hinged, and by setting the first axis pin 7, the first motion bar 6 is driven when thread cap 4 moves right
When, the first motion bar 6 is moved up by the first axis pin 7, and the upper surface and the lower surface of support plate 14 of the first fixed block 8 are fixed
Connection, the back side of the first motion bar 6 is hinged by the front of the second axis pin 9 and the second motion bar 10, by setting the second axis pin
9 so that the first motion bar 6 can drive the second motion bar 10 to move up and down by the second axis pin 9, so as to facilitate staff
Work, the back side of 10 bottom of the second motion bar is hinged by the 3rd axis pin 11 and the front on 12 top of the second fixed block, second
12 lower surfaces of fixed block are fixedly connected with the upper surface of bottom plate 1, the top of the second motion bar 10 and the second carriage 13
Lower surface is fixedly connected, and the second carriage 13 is opened in the lower surface of support plate 14, and the second carriage 13 includes second and slides
Groove 131, the second sliding slot 131 are opened in the lower surface of support plate 14, and the second sliding block 132 is slidably connected in the second sliding slot 131, the
The lower surface of two sliding blocks 132 is fixedly connected with the top of the second motion bar 10, by setting the second carriage 13, is lived second
Lever 10 is subject under the interaction of the first motion bar 6, and the second motion bar 10 is by the second sliding block 132 along the second sliding slot 131
It is moved to the left, connecting plate 15, and the opposite face of two connecting plates 15 has been fixedly connected with left and right sides of 14 upper surface of support plate
The left and right ends with connecting rod 16 are fixedly connected respectively, by setting two connecting plates 15 and connecting rod 16, prevent staff
Fallen down from support plate 14, so as to ensure that the safety of staff so that staff can preferably work, bottom plate
1 lower surface is fixedly connected by electric pushrod 17 with the upper surface of fixed plate 18, lower surface and the supporting block 19 of fixed plate 18
Upper surface be fixedly connected, the quantity of supporting block 19 is four, and four supporting blocks 19 are respectively positioned at 18 lower surface of fixed plate
Four corners, by setting four supporting blocks 19 so that supporting block 19 passes through the interaction between electric pushrod 17 so that Gu
Fixed board 18 drives supporting block 19 to move down so that universal wheel 20 soars when supporting block 19 is contacted with ground, so that this hair
Bright fixation is more firm, so as to facilitate the work of staff, the quantity of universal wheel 20 is four, and four universal wheels 20
It is located at the four corners of 1 lower surface of bottom plate respectively, by setting universal wheel 20 so that staff is more square when promoting of the invention
Just, the quantity of electric pushrod 17 is two, and two electric pushrods 17 are located at the left and right sides of 18 upper surface of fixed plate respectively, lead to
Cross and two electric pushrods 17 are set so that more steady, the following table of bottom plate 1 when electric pushrod 17 drives 18 oscilaltion of fixed plate
Face is fixedly connected with universal wheel 20, and the right flank of bottom plate 1 is fixedly connected with handrail 21, and the upper surface of bottom plate 1 is respectively arranged with storage
Battery 22 and control panel 23, the output terminal of storage battery 22 are electrically connected with the input terminal of control panel 23, control panel 23 it is defeated
Input terminal of the outlet respectively with motor 31 and electric pushrod 17 is electrically connected, by setting control panel 23 so that staff couple
The control of 17 working status of motor 31 and electric pushrod is more convenient.
In use, the present invention is pushed under the pendent lamp for needing to carry out maintenance so that an operator station is in support plate
On 14, a staff is extended downwards by operating 23 electric pushrod 17 of control panel and drives fixed plate 18 downward again
It is mobile, when the supporting block 19 of the lower section of fixed plate 18 is contacted with ground and during so that universal wheel 20 soaring, by operating chain of command
Plate 23 causes electric pushrod 17 to be stopped, then by operating control panel 23 so that motor 31 rotates forward work and drives threaded post
32 rotate so that for threaded post 32 under the threaded connection effect with thread cap 4, thread cap 4 passes through the first sliding block 52 along first
Sliding slot 51 is moved to the left, while causes thread cap 4 to drive the first motion bar 6 to be moved to the left, and the first motion bar 6 passes through the second axis pin
9 and second motion bar 10 interaction so that support plate 14 rises, by operate 23 motor 31 of control panel stop work
Make, so that operator station carries out maintenance pendent lamp in support plate 14, after the completion of maintenance, then by operating chain of command
Plate 23 is so that motor 31 inverts work, and drive threaded post 32 rotates so that thread cap 4 is acted in the threaded connection with threaded post 32
Under move right, while cause interaction of first motion bar 6 by the second axis pin 9 and the second motion bar 10 so that support
Plate 14 declines, then is stopped by operating 23 motor 31 of control panel, then moral electric pushrod 17 is shunk upwards, drives
Fixed plate 18 and supporting block 19 move up, and when supporting block 19 is away from ground, when universal wheel 20 is contacted with ground, pass through chain of command
Plate 23 is so that electric pushrod 17 is stopped.
Can to sum up obtain, (1), this facilitate in worker room repair lifting gear, pass through motor 31, threaded post 32, thread cap
4th, the first sliding groove 51, the first sliding block 52, the first motion bar 6, the first fixed block 8, the first axis pin 7, the second axis pin 9, second are fixed
It is mutual between block 12, the second sliding block 132, the second sliding slot 131, support plate 14, electric pushrod 17, fixed plate 18 and supporting block 19
Coordinate so that electric pushrod 17 extends downwards, while drives fixed plate 18 to move down, when the supporting block 19 fixed plate 18 under and
Ground contacts, so that universal wheel 20 soars, then causes motor 31 to rotate forward work and drive threaded post 32 to rotate, in threaded post 32
Under threaded connection with thread cap 4 acts on so that thread cap 4 drives the first sliding block 52 to be moved to the left along the first sliding groove 51, spiral shell
Line cap 4 drives the first motion bar 6 to be moved up by the first axis pin 7, while causes the first motion bar 6 to pass through 9 band of the second axis pin
Dynamic second motion bar 10 is moved to the left and raises, so that phase of the support plate 14 in the first motion bar 6 and the second motion bar 10
Raise, pendent lamp is carried out maintenance in support plate 14 so that staff can stand, so as to facilitate work under interaction
Maintenance of the personnel to electric light.
(2), this facilitates the lifting gear repaired in worker room, by setting control panel 23 so that control panel 23
Input terminal of the output terminal respectively with motor 31 and electric pushrod 17 is electrically connected, so as to facilitate staff to motor 31 and electronic
The control of 17 working status of push rod, and which has a compact structure and a reasonable design of the present invention, it is highly practical.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of changes, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of facilitate the lifting gear repaired in worker room, including bottom plate (1), it is characterised in that：The upper table of the bottom plate (1)
Face is fixedly connected by telescopic rod (2) with the lower surface of support plate (14), upper surface and the driving device (3) of the bottom plate (1)
Lower surface be fixedly connected, the outer surface thread of the driving device (3) is connected with thread cap (4), under the thread cap (4)
Surface is fixedly connected with the upper surface of the first carriage (5), and first carriage (5) is opened in the upper table of bottom plate (1)
Face, the upper surface of the thread cap (4) are fixedly connected with the bottom of the first motion bar (6), the first motion bar (6) top
The back side is hinged by the first axis pin (7) and the front of the first fixed block (8) bottom, the upper surface of first fixed block (8) with
The lower surface of support plate (14) is fixedly connected, and the back side of first motion bar (6) passes through the second axis pin (9) and the second motion bar
(10) front is hinged, and the back side of the second motion bar (10) bottom is pushed up by the 3rd axis pin (11) and the second fixed block (12)
The front at end is hinged, and (12) lower surface of second fixed block is fixedly connected with the upper surface of bottom plate (1), second activity
The top of bar (10) is fixedly connected with the lower surface of the second carriage (13), and second carriage (13) is opened in support
The lower surface of plate (14), has been fixedly connected with connecting plate (15), and two companies at left and right sides of support plate (14) upper surface
Left and right ends of the opposite face of fishplate bar (15) respectively with connecting rod (16) are fixedly connected, and the lower surface of the bottom plate (1) passes through electricity
Dynamic push rod (17) is fixedly connected with the upper surface of fixed plate (18), and the lower surface of the fixed plate (18) is upper with supporting block (19)
Surface is fixedly connected, and the lower surface of the bottom plate (1) is fixedly connected with universal wheel (20), and the right flank of the bottom plate (1) is fixed
It is connected with handrail (21).
A kind of 2. lifting gear for facilitating maintenance in worker room according to claim 1, it is characterised in that：The driving dress
Putting (3) includes motor (31), and the lower surface of motor (31) fuselage is fixedly connected with the upper surface of bottom plate (1), the motor
(31) output shaft is fixedly connected with the one end of threaded post (32), and the outer surface thread of the threaded post (32) is connected to thread cap
(4) inner surface.
A kind of 3. lifting gear for facilitating maintenance in worker room according to claim 1, it is characterised in that：Described first slides
Dynamic device (5) includes the first sliding groove (51), and the first sliding groove (51) is opened in the upper surface of bottom plate (1), the first sliding groove
(51) the first sliding block (52) is slidably connected in, the upper surface and the lower surface of thread cap (4) of first sliding block (52) are fixed
Connection.
A kind of 4. lifting gear for facilitating maintenance in worker room according to claim 1, it is characterised in that：Described second slides
Dynamic device (13) includes the second sliding slot (131), and second sliding slot (131) is opened in the lower surface of support plate (14), and described the
The second sliding block (132), lower surface and the second motion bar of second sliding block (132) are slidably connected in two sliding slots (131)
(10) top is fixedly connected.
A kind of 5. lifting gear for facilitating maintenance in worker room according to claim 1, it is characterised in that：The supporting block
(19) quantity is four, and four supporting blocks (19) are located at the four corners of fixed plate (18) lower surface, the universal wheel respectively
(20) quantity is four, and four universal wheels (20) are located at the four corners of bottom plate (1) lower surface, the electric pushrod respectively
(17) quantity is two, and two electric pushrods (17) are located at the left and right sides of fixed plate (18) upper surface respectively.
A kind of 6. lifting gear for facilitating maintenance in worker room according to claim 1, it is characterised in that：The bottom plate
(1) upper surface is respectively arranged with storage battery (22) and control panel (23), the output terminal and chain of command of the storage battery (22)
The input terminal of plate (23) is electrically connected, and the output terminal of the control panel (23) is defeated with motor (31) and electric pushrod (17) respectively
Enter end to be electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711126019.0A CN108033409A (en) | 2017-11-15 | 2017-11-15 | It is a kind of to facilitate the lifting gear repaired in worker room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711126019.0A CN108033409A (en) | 2017-11-15 | 2017-11-15 | It is a kind of to facilitate the lifting gear repaired in worker room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108033409A true CN108033409A (en) | 2018-05-15 |
Family
ID=62093401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711126019.0A Withdrawn CN108033409A (en) | 2017-11-15 | 2017-11-15 | It is a kind of to facilitate the lifting gear repaired in worker room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108033409A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747186A (en) * | 2018-08-13 | 2018-11-06 | 南京皓焜自动化科技有限公司 | A kind of Liftable type dual AC power positioner |
| CN108910802A (en) * | 2018-07-30 | 2018-11-30 | 龙仕银 | A kind of build concrete plastering hoistable platform |
| CN111136684A (en) * | 2018-11-06 | 2020-05-12 | 广州一零八信息科技有限公司 | Liftable formula robot overhauls frame |
-
2017
- 2017-11-15 CN CN201711126019.0A patent/CN108033409A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910802A (en) * | 2018-07-30 | 2018-11-30 | 龙仕银 | A kind of build concrete plastering hoistable platform |
| CN108747186A (en) * | 2018-08-13 | 2018-11-06 | 南京皓焜自动化科技有限公司 | A kind of Liftable type dual AC power positioner |
| CN111136684A (en) * | 2018-11-06 | 2020-05-12 | 广州一零八信息科技有限公司 | Liftable formula robot overhauls frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180515 |
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| WW01 | Invention patent application withdrawn after publication |