CN107083842A - A kind of pulsed concrete sprayer - Google Patents
A kind of pulsed concrete sprayer Download PDFInfo
- Publication number
- CN107083842A CN107083842A CN201710467538.7A CN201710467538A CN107083842A CN 107083842 A CN107083842 A CN 107083842A CN 201710467538 A CN201710467538 A CN 201710467538A CN 107083842 A CN107083842 A CN 107083842A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- playpipe
- concrete
- pulsed
- pedestal
- 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- Withdrawn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
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
- B28B1/32—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by projecting, e.g. spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
- B28C5/142—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis the stirrer shaft carrying screw-blades
- B28C5/143—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis the stirrer shaft carrying screw-blades for materials flowing continuously through the mixing device
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a kind of pulsed concrete sprayer, including pedestal, universal wheel, concrete storehouse, playpipe and nozzle；Steering motor is fixedly connected with the middle part of the lower surface of pedestal, rotating disk is fixedly connected with the top of rotating shaft, the upper surface of rotating disk is fixedly connected with support, the lower surface of playpipe is hinged with telescoping mechanism, the lower surface of rotating disk is fixedly connected with concrete storehouse, the inside in concrete storehouse is fixedly connected with slush pump, the upper surface of playpipe is fixedly connected with injection motor, playpipe is internally provided with bent axle, connecting rod is rotatably connected on bent axle, the other end of connecting rod is hinged with sliding panel, the present invention can simultaneously in the horizontal plane with adjust spray angle in vertical plane, governing speed is fast, substantially increase the flexibility ratio when present invention is used；Concrete grout is stirred while gunite concrete is starched, is more uniformly distributed concrete grout mixing, while preventing concrete grout from condensing；The present invention can also adjust the size of spout according to practice of construction demand.
Description
Technical field
The present invention relates to a kind of building machinery, specifically a kind of pulsed concrete sprayer.
Background technology
Concrete, refers to the general designation for the cementing integral engineered composite material that gathers materials by binder materials.That generally says is mixed
Coagulate a native word to refer to make binder materials with cement, sand, masonry gather materials；Coordinate by a certain percentage with water, it is agitated obtained by cement
Concrete, also referred to as normal concrete, are widely used in civil engineering, and concrete sprayer is to utilize compressed air by concrete edge
Pipeline continuous conveying, and the machinery that construction surface gets on is ejected into, it is divided to dry spraying machine and the class of wet spraying machine two, existing coagulation
Native spraying machine is often difficult to conveniently and efficiently adjust spray angle in injection, in use underaction, it is difficult to meet
The demand of construction worker.
The content of the invention
It is an object of the invention to provide a kind of pulsed concrete sprayer, to solve what is proposed in above-mentioned background technology
Problem.
To achieve the above object, the present invention provides following technical scheme：
A kind of pulsed concrete sprayer, including pedestal, universal wheel, concrete storehouse, playpipe and nozzle；Under pedestal
Surface middle part is fixedly connected with steering motor, and the axle stretch end of steering motor is fixedly connected with rotating shaft, and rotating shaft is extended to through pedestal
Be fixedly connected with rotating disk at the top of the top of pedestal, rotating shaft, the upper surface of rotating disk is fixedly connected with support, the side wall of playpipe with
Support is hinged, and the lower surface of playpipe is hinged with telescoping mechanism, and the other end and the rotating disk of telescoping mechanism are hinged, the lower surface of rotating disk
Concrete storehouse is fixedly connected with, the inside in concrete storehouse, which is fixedly connected with the left of slush pump, playpipe, is provided with charging aperture, sprayed
The upper surface for penetrating pipe is fixedly connected with injection motor, and playpipe is internally provided with bent axle, the two ends of bent axle and playpipe it is interior
Wall rotates connection, and the side wall of axle stretch end through the playpipe of injection motor is fixedly connected with bent axle, the company of being rotatably connected on bent axle
Bar, the other end of connecting rod is hinged with sliding panel, and the inwall of sliding panel and playpipe is slidably connected, and the surface of playpipe offers logical
Hole, the inside of through hole is fixedly connected with check valve, and the right side wall of the sliding panel is fixedly connected with stirring motor, stirring motor
Axle stretch end is fixedly connected with agitating screw, and the right-hand member of playpipe is fixedly connected with nozzle, and the side wall of the pedestal is fixedly connected with
Console.
It is used as further scheme of the invention：The lower surface of the pedestal is fixedly connected with universal wheel.
It is used as further scheme of the invention：The telescoping mechanism is electric-controlled hydraulic telescoping mechanism.
It is used as further scheme of the invention：The inside of the charging aperture is provided with check valve.
It is used as further scheme of the invention：The right-hand member of the playpipe is in coniform.
It is used as further scheme of the invention：Paddle is distributed with the agitating screw.
It is used as further scheme of the invention：The universal wheel has four.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention can simultaneously in the horizontal plane with vertical plane
Spray angle is adjusted, easy to operate, governing speed is fast, substantially increase the flexibility ratio when present invention is used；Start injection motor
Concrete grout pulsed is sprayed, jet length is farther；Concrete grout is stirred while gunite concrete is starched, makes to mix
Solidifying soil paste mixing is more uniformly distributed, while preventing concrete grout from condensing；The present invention can also adjust spout according to practice of construction demand
Size, and then adjust spout pressure, so as to adjust jet length.
Brief description of the drawings
Fig. 1 is the structural representation of pulsed concrete sprayer；
Fig. 2 is the structural representation of playpipe in pulsed concrete sprayer；
Fig. 3 is the right view of nozzle in pulsed concrete sprayer.
In figure：1- pedestals；2- universal wheels；3- steering motors；4- rotating shafts；5- rotating disks；6- concrete storehouse；7- slush pumps；8-
Playpipe；9- supports；10- telescoping mechanisms；11- charging apertures；12- sprays motor；13- bent axles；14- sliding panels；15- connecting rods；16-
Through hole；17- check valves；18- stirring motors；19- agitating screws；20- nozzles；21- sliding blocks；22- screw mandrels；23- handles；24- is controlled
Platform processed.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer in Fig. 1~3, the embodiment of the present invention, a kind of pulsed concrete sprayer, including pedestal 1, universal wheel 2,
Concrete storehouse 6, playpipe 8 and nozzle 20；The lower surface of the pedestal 1 is fixedly connected with universal wheel 2, the lower surface of pedestal 1
Portion is fixedly connected with steering motor 3, and the axle stretch end of steering motor 3 is fixedly connected with rotating shaft 4, and rotating shaft 4 extends to base through pedestal 1
The top of seat 1, the top of rotating shaft 4 is fixedly connected with rotating disk 5, drives rotating shaft 4 to rotate when steering motor 3 is run, and then drive turns
Disk 5 is rotated, and the upper surface of rotating disk 5 is fixedly connected with support 9, and the top of rotating disk 5 is provided with playpipe 8, the side wall of playpipe 8 with
Support 9 is hinged, and the lower surface of playpipe 8 is hinged with telescoping mechanism 10, and the other end and the rotating disk 5 of telescoping mechanism 10 are hinged, control
Telescoping mechanism 10 stretches, and can adjust the spray angle of playpipe 8, the lower surface of rotating disk 5 is fixedly connected with concrete storehouse 6, mixes
The inside in solidifying soil storehouse 6 is fixedly connected with slush pump 7, and the left side of playpipe 8 is provided with charging aperture 11, slush pump 7 by flexible pipe with
Charging aperture 11 is connected, and check valve is provided with charging aperture 11, can by the concrete conveyance in concrete storehouse 6 to playpipe 8,
The upper surface of the playpipe 8 is fixedly connected with injection motor 12, and playpipe 8 is internally provided with bent axle 13, the two of bent axle 13
Hold to rotate with the inwall of playpipe 8 and be connected, the side wall of axle stretch end through the playpipe 8 of injection motor 12 is fixed with bent axle 13 to be connected
Connect, connecting rod 15 is rotatably connected on bent axle 13, the other end of connecting rod 15 is hinged with sliding panel 14, sliding panel 14 and playpipe 8
Inwall is slidably connected, can along playpipe 8 inwall slidably, injection motor 12 rotated with dynamic crankshaft 13, and then drive
Sliding panel 14 horizontally slips, and the surface of playpipe 8 offers through hole 16, and the inside of through hole 16 is fixedly connected with check valve 17, mixes
Solidifying soil paste can reach the right side of sliding panel 14 through check valve 17 from left to right, and the right side wall of the sliding panel 14 is fixedly connected
There is stirring motor 18, the axle stretch end of stirring motor 18, which is fixedly connected with agitating screw 19, agitating screw 19, is distributed with paddle,
Concrete grout can be stirred, make concrete grout mixing more abundant, prevent mud from condensing, the right-hand member of the playpipe 8
In coniform, the right-hand member of playpipe 8 is fixedly connected with nozzle 20, and the cross section of nozzle 20 is rectangle, and the inside of nozzle 20 is set
There is sliding block 21, sliding block 21 has and opens up fluted on two pieces, sliding block 21, and two pieces of sliding blocks 21 coordinate, and the groove on sliding block 21 is formed
Spout, the side wall of sliding block 21 is rotatably connected to screw mandrel 22 by bearing, the other end of screw mandrel 22 through nozzle 20 side wall and with
The sidewall thread connection of nozzle 20, the end of screw mandrel 22 is fixedly connected with handle 23, rotates handle 23, drives screw mandrel 22 to rotate,
And then the inwall with movable slider 21 along nozzle 20 is slided up and down, so as to adjust the size of spout, the side wall of the pedestal 1 is fixed
Console 24 is connected with, the steering motor 3, slush pump 7, telescoping mechanism 10, injection motor 12, stirring motor 18 pass through control
Platform 24 is electrically connected with external power supply.
The present invention operation principle be：Operating console 24, starts steering motor 3, and steering motor 3 drives rotating shaft 4 to rotate,
And then drive rotating disk 5 to rotate, the angle of playpipe 8 is adjusted in the horizontal plane, and the control telescoping mechanism 10 of operating console 24 stretches,
So as to adjust angle of the playpipe 8 in vertical plane, operating console 24 starts slush pump 7, by the concrete in concrete storehouse 6
Slurry is delivered in playpipe 8 by charging aperture 11, starts injection motor 12, injection motor 12 is rotated with dynamic crankshaft 13, and then band
Dynamic sliding panel 14 horizontally slips, and when sliding panel 14 is slided to the left, the check valve 17 for forcing concrete grout to be threaded through in 16 makes
Concrete grout reaches the right side of sliding panel 14, starts stirring motor 18, drives agitating screw 19 to rotate, concrete grout is stirred
Mix, be more uniformly distributed concrete grout mixing, while preventing concrete grout from condensing, when sliding panel 14 is slided to the right, promote coagulation
Soil paste sprays from nozzle 20, rotates handle 23, drives screw mandrel 22 to rotate, and then above and below the inwall with movable slider 21 along nozzle 20
Slide, the size of spout is adjusted according to practice of construction demand, and then adjust jet length.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (7)
1. a kind of pulsed concrete sprayer, including pedestal (1), universal wheel (2), concrete storehouse (6), playpipe (8) and spray
Mouth (20)；Characterized in that, being fixedly connected with steering motor (3), the shaft extension of steering motor (3) in the middle part of the lower surface of pedestal (1)
End is fixedly connected with rotating shaft (4), and rotating shaft (4) extends to the top of pedestal (1) through pedestal (1), and the top of rotating shaft (4), which is fixed, to be connected
Rotating disk (5) is connected to, the upper surface of rotating disk (5) is fixedly connected with support (9), and side wall and the support (9) of playpipe (8) are hinged, sprayed
The lower surface for penetrating pipe (8) is hinged with telescoping mechanism (10), and the other end and the rotating disk (5) of telescoping mechanism (10) are hinged, rotating disk (5)
Lower surface is fixedly connected with concrete storehouse (6), and the inside of concrete storehouse (6) is fixedly connected with slush pump (7), playpipe (8)
Left side is provided with charging aperture (11), and the upper surface of playpipe (8) is fixedly connected with injection motor (12), the inside of playpipe (8)
Bent axle (13) is provided with, the two ends of bent axle (13) are rotated with the inwall of playpipe (8) and are connected, and the axle stretch end of injection motor (12) is worn
The side wall of overspray pipe (8) is fixedly connected with bent axle (13), is rotatably connected to connecting rod (15) on bent axle (13), connecting rod (15) it is another
One end is hinged with sliding panel (14), and the inwall of sliding panel (14) and playpipe (8) is slidably connected, and the surface of playpipe (8) is opened up
There is through hole (16), the inside of through hole (16) is fixedly connected with check valve (17), and the right side wall of the sliding panel (14) is fixedly connected
There is stirring motor (18), the axle stretch end of stirring motor (18) is fixedly connected with agitating screw (19), and the right-hand member of playpipe (8) is fixed
Nozzle (20) is connected with, the side wall of the pedestal (1) is fixedly connected with console (24).
2. pulsed concrete sprayer according to claim 1, it is characterised in that the lower surface of the pedestal (1) is consolidated
Surely it is connected with universal wheel (2).
3. pulsed concrete sprayer according to claim 1, it is characterised in that the telescoping mechanism (10) is automatically controlled
Hydraulic telescopic machanism.
4. pulsed concrete sprayer according to claim 1, it is characterised in that the inside peace of the charging aperture (11)
Equipped with check valve.
5. pulsed concrete sprayer according to claim 1, it is characterised in that the right-hand member of the playpipe (8) is in
It is coniform.
6. pulsed concrete sprayer according to claim 1, it is characterised in that be distributed on the agitating screw (19)
There is paddle.
7. pulsed concrete sprayer according to claim 2, it is characterised in that the universal wheel (2) has four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467538.7A CN107083842A (en) | 2017-06-20 | 2017-06-20 | A kind of pulsed concrete sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467538.7A CN107083842A (en) | 2017-06-20 | 2017-06-20 | A kind of pulsed concrete sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107083842A true CN107083842A (en) | 2017-08-22 |
Family
ID=59605764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710467538.7A Withdrawn CN107083842A (en) | 2017-06-20 | 2017-06-20 | A kind of pulsed concrete sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107083842A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386608A (en) * | 2017-08-24 | 2017-11-24 | 刘冬明 | A kind of construction and decoration gap filler mixing joint filling device |
| CN107662162A (en) * | 2017-08-30 | 2018-02-06 | 江苏工程职业技术学院 | A kind of adsorbed wall-climbing robot reinforcing bar derusting method |
| CN107932724A (en) * | 2017-11-20 | 2018-04-20 | 魏熙圆 | A kind of build concrete preparation facilities |
| CN108442707A (en) * | 2018-03-24 | 2018-08-24 | 朱蓓 | A kind of construction site concrete pump is automobile-used to pour pipe positioning distribution device |
| CN108952731A (en) * | 2018-07-20 | 2018-12-07 | 四川瑞通工程建设集团有限公司 | A kind of construction method in tunnel |
| CN110206316A (en) * | 2019-06-13 | 2019-09-06 | 山西汾西华益实业有限公司 | A kind of novel injection concrete equipment |
| CN110761809A (en) * | 2019-11-12 | 2020-02-07 | 徐州秩润矿山设备科技有限公司 | Patching machine convenient to operation of ascending a height in pit |
| CN112554189A (en) * | 2020-12-18 | 2021-03-26 | 广州轨道交通建设监理有限公司 | Automatic spraying and smearing machine for subway deep foundation pit |
| CN113073662A (en) * | 2021-04-21 | 2021-07-06 | 项兆华 | Slope protection concrete injection reinforcement method for preventing landslide |
| CN114352022A (en) * | 2022-01-23 | 2022-04-15 | 陆越 | Concrete injection pipe capable of being cleaned automatically |
| CN115012418A (en) * | 2022-06-15 | 2022-09-06 | 中建八局轨道交通建设有限公司 | Adjustable air compression injection machine hand gun for foundation pit slope construction |
-
2017
- 2017-06-20 CN CN201710467538.7A patent/CN107083842A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386608A (en) * | 2017-08-24 | 2017-11-24 | 刘冬明 | A kind of construction and decoration gap filler mixing joint filling device |
| CN107662162A (en) * | 2017-08-30 | 2018-02-06 | 江苏工程职业技术学院 | A kind of adsorbed wall-climbing robot reinforcing bar derusting method |
| CN107932724A (en) * | 2017-11-20 | 2018-04-20 | 魏熙圆 | A kind of build concrete preparation facilities |
| CN107932724B (en) * | 2017-11-20 | 2019-09-13 | 抚州市正兴混凝土有限公司 | A kind of build concrete preparation facilities |
| CN108442707A (en) * | 2018-03-24 | 2018-08-24 | 朱蓓 | A kind of construction site concrete pump is automobile-used to pour pipe positioning distribution device |
| CN108952731A (en) * | 2018-07-20 | 2018-12-07 | 四川瑞通工程建设集团有限公司 | A kind of construction method in tunnel |
| CN110206316A (en) * | 2019-06-13 | 2019-09-06 | 山西汾西华益实业有限公司 | A kind of novel injection concrete equipment |
| CN110761809A (en) * | 2019-11-12 | 2020-02-07 | 徐州秩润矿山设备科技有限公司 | Patching machine convenient to operation of ascending a height in pit |
| CN112554189A (en) * | 2020-12-18 | 2021-03-26 | 广州轨道交通建设监理有限公司 | Automatic spraying and smearing machine for subway deep foundation pit |
| CN113073662A (en) * | 2021-04-21 | 2021-07-06 | 项兆华 | Slope protection concrete injection reinforcement method for preventing landslide |
| CN114352022A (en) * | 2022-01-23 | 2022-04-15 | 陆越 | Concrete injection pipe capable of being cleaned automatically |
| CN115012418A (en) * | 2022-06-15 | 2022-09-06 | 中建八局轨道交通建设有限公司 | Adjustable air compression injection machine hand gun for foundation pit slope construction |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170822 |
|
| WW01 | Invention patent application withdrawn after publication |