CN106032674A - Bulldozer for groove digging and backfill excavation - Google Patents
Bulldozer for groove digging and backfill excavation Download PDFInfo
- Publication number
- CN106032674A CN106032674A CN201610530001.6A CN201610530001A CN106032674A CN 106032674 A CN106032674 A CN 106032674A CN 201610530001 A CN201610530001 A CN 201610530001A CN 106032674 A CN106032674 A CN 106032674A
- Authority
- CN
- China
- Prior art keywords
- dozer
- axle
- pusher blade
- bull
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/04—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging screws
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/12—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with equipment for back-filling trenches or ditches
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Road Repair (AREA)
Abstract
The invention discloses a bulldozer for groove digging and backfill excavation. The bulldozer comprises a rack, a dozer blade connected to the front end of the rack and a compacting hammer connected to the rear end of the rack; the dozer blade comprises a cutter head, milling cutters, a right pusher blade I, a left pusher blade I, a driving device and a shaft II; the cutter head is round, the milling cutters are evenly distributed in the peripheral direction, and the cutter head is fixed on the shaft II and located in the middle position of the dozer blade and can be disassembled; the left pusher blade I and the right pusher blade I are fixedly connected to the two sides of the shaft II respectively; the two ends of the shaft II are supported on a bearing I and a bearing II, and the driving device is connected to one end of the shaft; a support is arranged at the rear end of the bulldozer; the compacting hammer is installed on the lower end face of the support. The left pusher blade and the right pusher blade on the shaft II can push the dug soil to the two sides of the dozer blade, after a pipeline is laid, two pusher blades which are located on the two sides of a bucket are additionally installed, the driving device rotates reversely to push earth at the two sides into a groove, and compacting is conducted through the compacting hammer. The bulldozer for groove digging and backfill excavation is simple in principle and high in work efficiency.
Description
Technical field
The invention belongs to technical field of engineering machinery, particularly to a kind of bull-dozer excavating groove and backfill excavation.
Background technology
Pipeline be with pipe, pipe connector and valve etc. be connected into for carrying gas, liquid or the fluid of band solid particle
Device.Convenience due to pipeline so that it worldwide has and uses widely.Due to the allocation plan in city, mostly
The pipeline of number is all embedded in underground.Traditional method uses excavator excavation or hand excavation.During hand excavation's groove, work efficiency
Low, and two kinds of methods are easily backbreak or disturbance foundation bed.In general, when digging to the above 20cm of bottom land absolute altitude, then use
Excavated by manual work removes, at the bottom of trim slots, dig while repair, and carry out foundation construction immediately.If backbreaking, employing earthen backfill should be according to relevant backfill
Compacting requirement backfills.So efficiency is the lowest, and the degree of depth is not easily controlled.After pipe laying completes, in addition it is also necessary to excavation is entered
Row backfill, efficiency is the lowest.
Summary of the invention
It is an object of the invention to provide a kind of bull-dozer excavating groove and backfill excavation, to solve the deficiency of existing bull-dozer,
This bull-dozer controls the degree of depth of excavation groove, prevents from backbreaking, little to basic unit's disturbance, it is achieved process of working continuously, and efficiency is high, real
Strong by property.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of bull-dozer excavating groove and backfill excavation, including frame, and is connected to the dozer of frame front end and is connected to
The compaction hammer of frame rear end；Dozer includes cutterhead, milling cutter, right pusher blade I, left pusher blade I, driving means and axle II；
Cutterhead is circular, and circumferencial direction is evenly equipped with milling cutter, and cutterhead is fixed on axle II, is positioned at the centre position of dozer, can dismantle；Axle
The both sides of II are connected with left pusher blade I, right pusher blade I；Axle II two ends are supported on bearing I and bearing II, one end of axle
Connect and have driving means；The rear end of bull-dozer is provided with support；Compaction hammer is installed on the lower surface of support.
Further: to be provided with driver's cabin in frame, the lower section of driver's cabin is provided with the crawler belt for driving bull-dozer to advance and drives
Driving wheel.
Further: dozer rear end is connected with frame by lifting hydraulic cylinder, vertical hydraulic cylinder, pushing frame.
Further: dozer front end is provided with hoist cylinder I and hoist cylinder II.
Further: one end of hoist cylinder I is hinged with bearing I by contact A, the other end is cut with scissors with dozer by contact B
Connect.
Further: one end of hoist cylinder II is hinged with bearing II by contact D, the other end is cut with scissors with dozer by contact C
Connect.
Further: driver's cabin to be provided with for controlling lifting hydraulic cylinder, vertical hydraulic cylinder, hoist cylinder I and hoist cylinder
The controller of II.
Further: also to include axle I, axle III, left pusher blade II and right pusher blade II；Axle III is by shaft coupling and axle II phase
Connect, it is possible to dismounting, be positioned at the left side of dozer, it is provided with left pusher blade II；Axle I is installed on the drive means, position
Right side in dozer, it is possible to dismounting, it is provided with right pusher blade II.
Further: the scraper bowl both sides of dozer are not provided with sidewall, left pusher blade II and right pusher blade II extend out to outside dozer
Side.
Further: when bull-dozer is started working, axle I and axle III are disassembled, driving means drives and is supported on bearing I He
Axle II on bearing II rotates, thus drives the cutterhead being arranged on axle II to rotate；The soil that basic unit is milled away by the milling cutter on cutterhead is straight
Connecing and be involved in dozer, the left pusher blade I of rotation and right pusher blade I drive the soil being deposited in dozer to dozer both sides
Passage, until excavation groove completes, after pipeline has been laid in the groove of excavation, installs on the drive means by axle I, axle
III is arranged on the left side of dozer by shaft coupling, and is disassembled from axle II by cutterhead, driving means band moving axis I, axle II,
Axle III inverts, on axle I install right pusher blade II and axle III on install left pusher blade II by the soil of dozer both sides to
Middle passage, under the effect of the left pusher blade I being arranged on axle II and right pusher blade I, pushes away left pusher blade II and the right side
The earth that material blade II passage comes is transported in groove, compaction hammer carry out hitting reality, complete the laying of whole pipeline.
Technical scheme has the advantages that
When driving means band moving axis rotates, the milling cutter on cutterhead also and then rotates, and controller controls lifting hydraulic cylinder, vertical liquid
Cylinder pressure, hoist cylinder I, hoist cylinder II action so that the milling cutter on cutterhead carries out milling to base material, it is ensured that groove
The degree of depth, do not have the phenomenon backbreak, it is to avoid manual amendment, improves efficiency, has saved cost.Left pusher blade and right pusher
The earth that milling tool can be fallen into and be involved in dozer by blade elapses the most to the left and right so that earth will not in dozer heap
Long-pending, it is ensured that the seriality of construction operation, efficiency is greatly improved.After pipe laying, only cutterhead need to be disassembled from axle,
Axle inverts, and the earth on groove both sides is transported in groove by left and right pusher blade, compaction hammer carry out hitting reality, improves work effect
Rate.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the side view of equipment.
In figure, the implication of each label has: 1-support；2-compaction hammer；3-driving wheel；4-crawler belt；5-pushing frame；The vertical liquid of 6-
Cylinder pressure；7-cutterhead；8-milling cutter；9-lifting hydraulic cylinder；10-petroleum pipeline；11-driver's cabin；12-controller；13-axle I；14-
Bearing I；15-driving means；16-contact A；17-hoist cylinder I；18-receives B；19-dozer；The right pusher blade of 20-
Ⅰ；The left pusher blade of 21-I；22-contact C；23-hoist cylinder II；24 contact D；25-bearing II；26-axle II, 27-is left
Pusher blade II, 28-axle III, 29-shaft coupling, 30-pipeline, the right pusher blade of 31-II.
Detailed description of the invention
The specific embodiment of the present invention given below, it should be noted that and the invention is not limited in specific examples below, all at this
The equivalents done on the basis of application technical scheme each falls within protection scope of the present invention.
Refer to shown in Fig. 1, a kind of bull-dozer excavating groove and backfill excavation, including frame, and it is connected to frame front end
Dozer 19 and the compaction hammer 2 being connected to frame rear end；
Dozer 19 includes cutterhead 7, milling cutter 8, right pusher blade I 20, left pusher blade I 21, left pusher blade II 27, the right side
Pusher blade II 31, driving means 15, axle；Cutterhead 7 is circular, and circumferencial direction is evenly equipped with milling cutter 8, and cutterhead 7 is fixed on axle II
On 26 II, it is positioned at the scraper bowl centre position of dozer 19, can dismantle；The both sides being positioned at cutterhead 7 on axle II 26 are connected with left pusher
Blade I 21, right pusher blade I 20；Axle II 26 two ends are supported on bearing I 14 and bearing II 25, and one end of axle II 26 connects
There is driving means 15；Axle III 28 is connected with axle II 26 by shaft coupling 29, can dismantle, be positioned at the left side of dozer 19,
Left pusher blade II 21 is installed on it；Axle I 13 is arranged in driving means 15, is positioned at the right side of dozer 19, can tear open
Unload, it is provided with right pusher blade II 31.The scraper bowl both sides of dozer 19 are not provided with sidewall, and left pusher blade II 21 and the right side push away
Material blade II 31 extend out to outside dozer 19.
When driving means band moving axis rotates, the milling cutter 8 on cutterhead 7 also and then rotates so that the milling cutter 8 on cutterhead 7 is to basic unit
Material carries out milling.Milling cutter 8 can be milled away and then be involved in dozer 19 by left pusher blade I 21 and right pusher blade I 20
In earth elapse the most to the left and right so that earth will not be piled up in dozer.
Compaction hammer 2 is installed on the lower surface of bull-dozer rear end support 1.After pipe laying, cutterhead 7 is disassembled from axle,
Axle II 26 inverts, and the earth being pushed into dozer 19 both sides when left pusher blade II 21 and right pusher blade II 31 are by excavation is defeated
Deliver to inside dozer 19, through left pusher blade I 21 and right pusher blade I 20, earth is further transported in groove, by
Compaction hammer 2 carries out hitting reality.
Being provided with driver's cabin 11 in frame, driver's cabin 11 is internally installed controller 12, and the lower section of driver's cabin 11 is provided with crawler belt
4, driving wheel 3.
Dozer 19 rear end is connected with frame by lifting hydraulic cylinder 9, vertical hydraulic cylinder 6, pushing frame 5.Promote hydraulic tube
9 connections below have petroleum pipeline 10.Dozer 19 front end is provided with hoist cylinder I 17 and hoist cylinder II 23.Hoist cylinder I 17
One end by contact A16 hinged with bearing I 14, the other end pass through contact B18 hinged with dozer 19.Hoist cylinder II
One end of 23 is hinged with bearing II 25 by contact D24, and the other end is hinged with dozer 19 by contact C22.
Controller 12 is used for controlling lifting hydraulic cylinder 9, vertical hydraulic cylinder 6, hoist cylinder I 17, hoist cylinder II 23.Ensure
The degree of depth of groove, it is to avoid the phenomenon backbreak.
Specific works process is as follows:
When bull-dozer is started working, axle I and axle III being disassembled, driving means 15 drives and is supported on bearing I 14 and bearing II
Axle II 26 on 25 rotates, thus drives the cutterhead 7 being arranged on axle II 26 to rotate.Controller 12 control lifting hydraulic cylinder 9,
Vertical hydraulic cylinder 6, hoist cylinder I 17, hoist cylinder II 23 action, be accurately controlled the degree of depth of milling.Cutterhead 7
On milling cutter 8 soil that basic unit is milled away directly be involved in dozer 19, the left pusher blade I 21 of rotation and right pusher blade I
20 drive the soil being deposited in dozer 19 to elapse to dozer 19 both sides, it is ensured that the seriality of whole operation process.Work as pipe
After road 30 has been laid, being arranged in driving means 15 by axle I 13, be positioned at the right side of dozer 19, axle III 28 passes through shaft coupling
Device 29 is arranged on the left side of dozer 19, and is disassembled from axle II 26 by cutterhead 7, driving means 15 band moving axis I 13,
Axle II 26, axle III 28 invert, the left pusher blade II that the right pusher blade II 31 that axle I 13 is installed and axle III 28 are installed
The soil of dozer 19 both sides is elapsed, at the left pusher blade I 21 being arranged on axle II 26 and right pusher blade I by 27 to centre
Under the effect of 20, left pusher blade II 27 and right pusher blade II 31 are elapsed the earth come and is transported in groove, by compaction hammer
2 carry out hitting reality, complete the laying of whole pipeline.
Claims (10)
1. the bull-dozer excavating groove and backfill excavation, it is characterised in that: include frame, and be connected to frame front end
Dozer (19) and be connected to the compaction hammer (2) of frame rear end；
Dozer (19) includes cutterhead (7), milling cutter (8), right pusher blade I (20), left pusher blade I (21), drives
Dynamic device (15) and axle II (26)；Cutterhead (7) is circular, and circumferencial direction is evenly equipped with milling cutter (8), and cutterhead (7) is fixed on
On axle II (26), it is positioned at the centre position of dozer (19), can dismantle；The both sides of axle II (26) are connected with left pusher blade
I (21), right pusher blade I (20)；Axle II (26) two ends are supported on bearing I (14) and bearing II (25), axle (26)
One end connect have driving means (15)；
The rear end of bull-dozer is provided with support (1)；Compaction hammer (2) is installed on the lower surface of support (1).
A kind of bull-dozer excavating groove and backfill excavation the most according to claim 1, it is characterised in that: arrange in frame
There are driver's cabin (11), the lower section of driver's cabin (11) that the crawler belt (4) for driving bull-dozer to advance and driving wheel (3) are installed.
A kind of bull-dozer excavating groove and backfill excavation the most according to claim 2, it is characterised in that: dozer (19)
Rear end is connected with frame by lifting hydraulic cylinder (9), vertical hydraulic cylinder (6), pushing frame (5).
A kind of bull-dozer excavating groove and backfill excavation the most according to claim 3, it is characterised in that: dozer (19)
Front end is provided with hoist cylinder I (17) and hoist cylinder II (23).
A kind of bull-dozer excavating groove and backfill excavation the most according to claim 4, it is characterised in that: hoist cylinder I
(17) one end is hinged with bearing I (14) by contact A (16), and the other end is by contact B (18) and dozer (19)
Hinged.
A kind of bull-dozer excavating groove and backfill excavation the most according to claim 5, it is characterised in that: hoist cylinder II
(23) one end is hinged with bearing II (25) by contact D (24), and the other end is by contact C (22) and dozer (19)
Hinged.
A kind of bull-dozer excavating groove and backfill excavation the most according to claim 6, it is characterised in that: driver's cabin sets
It is equipped with for controlling lifting hydraulic cylinder (9), vertical hydraulic cylinder (6), hoist cylinder I (17) and the control of hoist cylinder II (23)
Device processed (12).
A kind of bull-dozer excavating groove and backfill excavation the most according to claim 1, it is characterised in that: also include axle I
(13), axle III (28), left pusher blade II (27) and right pusher blade II (31)；Axle III (28) is by shaft coupling (29)
It is connected with axle II (26), it is possible to dismounting, is positioned at the left side of dozer (19), it is provided with left pusher blade II (21)；
Axle I (13) is arranged in driving means (15), is positioned at the right side of dozer (19), it is possible to dismounting, it is provided with the right side and pushes away
Material blade II (31).
A kind of bull-dozer excavating groove and backfill excavation the most according to claim 8, it is characterised in that: dozer (19)
Scraper bowl both sides be not provided with sidewall, left pusher blade II (21) and right pusher blade II (31) extend out to dozer (19) outside.
A kind of bull-dozer excavating groove and backfill excavation the most according to claim 8, it is characterised in that: when bull-dozer leaves
During beginning work, axle I and axle III being disassembled, driving means drives axle II rotation being supported on bearing I and bearing II, thus carries
The dynamic cutterhead being arranged on axle II rotates；The soil that basic unit is milled away by the milling cutter on cutterhead is directly involved in dozer, and a left side for rotation pushes away
Material blade I and right pusher blade I drive the soil being deposited in dozer to elapse to dozer both sides, until excavation groove completes, when
After pipeline has been laid in the groove of excavation, installing on the drive means by axle I, axle III is arranged on dozer by shaft coupling
Left side, and cutterhead is disassembled from axle II, driving means band moving axis I, axle II, axle III invert, and axle I is installed
The soil of dozer both sides is elapsed by the left pusher blade II installed on right pusher blade II and axle III to centre, is being arranged on axle II
Under the effect of left pusher blade I and right pusher blade I, left pusher blade II and right pusher blade II are elapsed the earth conveying come
In groove, compaction hammer carry out hitting reality, complete the laying of whole pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610530001.6A CN106032674B (en) | 2016-07-05 | 2016-07-05 | A kind of bull-dozer for excavating groove and backfilling excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610530001.6A CN106032674B (en) | 2016-07-05 | 2016-07-05 | A kind of bull-dozer for excavating groove and backfilling excavation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106032674A true CN106032674A (en) | 2016-10-19 |
| CN106032674B CN106032674B (en) | 2018-08-17 |
Family
ID=57148986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610530001.6A Expired - Fee Related CN106032674B (en) | 2016-07-05 | 2016-07-05 | A kind of bull-dozer for excavating groove and backfilling excavation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106032674B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926871A (en) * | 2020-09-18 | 2020-11-13 | 山东通广电子有限公司 | Multifunctional electric power engineering vehicle |
| CN112177078A (en) * | 2020-10-09 | 2021-01-05 | 广东金松建设集团股份有限公司 | Construction device and construction method for irrigation and water conservancy construction |
| CN113973519A (en) * | 2021-11-04 | 2022-01-28 | 孙秀敏 | Construction device for comprehensive soil improvement and ecological restoration |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2642835Y (en) * | 2003-07-18 | 2004-09-22 | 曹斌 | Soil shifting and compacting machine |
| CN101421464A (en) * | 2006-03-27 | 2009-04-29 | 查尔斯机器制造厂有限公司 | Auger for use with trenching assembly |
| US20100104374A1 (en) * | 2008-10-24 | 2010-04-29 | Ronald Hall | Conduit Laying Machine |
| CN102677721A (en) * | 2012-05-18 | 2012-09-19 | 陈建军 | Excavating and cable-paving integrated machine |
| US20150167273A1 (en) * | 2012-06-25 | 2015-06-18 | Ihc Holland Ie B.V. | Vessel for forming a trench in a water bottom |
| CN205776454U (en) * | 2016-07-05 | 2016-12-07 | 长安大学 | A kind of bull-dozer excavating groove and backfill excavation |
-
2016
- 2016-07-05 CN CN201610530001.6A patent/CN106032674B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2642835Y (en) * | 2003-07-18 | 2004-09-22 | 曹斌 | Soil shifting and compacting machine |
| CN101421464A (en) * | 2006-03-27 | 2009-04-29 | 查尔斯机器制造厂有限公司 | Auger for use with trenching assembly |
| US20100104374A1 (en) * | 2008-10-24 | 2010-04-29 | Ronald Hall | Conduit Laying Machine |
| CN102677721A (en) * | 2012-05-18 | 2012-09-19 | 陈建军 | Excavating and cable-paving integrated machine |
| US20150167273A1 (en) * | 2012-06-25 | 2015-06-18 | Ihc Holland Ie B.V. | Vessel for forming a trench in a water bottom |
| CN205776454U (en) * | 2016-07-05 | 2016-12-07 | 长安大学 | A kind of bull-dozer excavating groove and backfill excavation |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926871A (en) * | 2020-09-18 | 2020-11-13 | 山东通广电子有限公司 | Multifunctional electric power engineering vehicle |
| CN111926871B (en) * | 2020-09-18 | 2022-02-18 | 山东通广电子有限公司 | Multifunctional electric power engineering vehicle |
| CN112177078A (en) * | 2020-10-09 | 2021-01-05 | 广东金松建设集团股份有限公司 | Construction device and construction method for irrigation and water conservancy construction |
| CN112177078B (en) * | 2020-10-09 | 2022-03-01 | 广东金松建设集团股份有限公司 | Construction device and construction method for irrigation and water conservancy construction |
| CN113973519A (en) * | 2021-11-04 | 2022-01-28 | 孙秀敏 | Construction device for comprehensive soil improvement and ecological restoration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106032674B (en) | 2018-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104088647B (en) | Shield tube push bench with super-large rectangular cross section | |
| US5542782A (en) | Method and apparatus for in situ installation of underground containment barriers under contaminated lands | |
| JP5033257B1 (en) | Shield tunneling machine | |
| CN101392651B (en) | Multifunction downhole bottom ripping machine | |
| AU2011267843B2 (en) | Method and apparatus for bulk seafloor mining | |
| CN102493813B (en) | Shield tunneling machine for underground pipeline | |
| WO2011156865A1 (en) | Method and apparatus for auxilary seafloor mining | |
| AU2019200467A1 (en) | Excavation devices and methods | |
| CN205776454U (en) | A kind of bull-dozer excavating groove and backfill excavation | |
| CN106032674A (en) | Bulldozer for groove digging and backfill excavation | |
| RU123389U1 (en) | STEPPING MANIPULATOR FOR THE RECOGNITION OF SWAMPES | |
| CN105442602A (en) | Mechanical pile planting and damming machine for dam seepage hole and method of mechanical pile planting and damming machine | |
| CN204530407U (en) | Device is dug in a kind of milling | |
| CN207846506U (en) | A kind of bull-dozer cleaning plant for building | |
| CN113446008A (en) | Shaft excavation device and construction method thereof | |
| CN103741742B (en) | Ditcher | |
| CN205742318U (en) | A kind of milling digging machine of automatic material-absorbing | |
| CN105507320A (en) | Dam breach mechanical pile plantation dam construction machine and method thereof | |
| CA2090242A1 (en) | Apparatus and method for cutting soil and in situ construction of subsurface containment barriers | |
| CN203668994U (en) | Ditcher | |
| CN202969440U (en) | Excavator bucket | |
| CN202925582U (en) | Coal mine underground hydraulic excavator | |
| CN105316994B (en) | Device is dug in a kind of milling | |
| CN109372050A (en) | A kind of new-type excavator suitable for mud field construction | |
| CN104328815B (en) | A kind of guide wall of underground continuous wall groove automatic excavator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Guo Weidong Inventor after: Li Chao Inventor after: Gao Jun Inventor after: Gao Feng Inventor after: Wang Na Inventor after: Shi Xiuping Inventor after: Cui Xianjue Inventor after: Gong Yuchao Inventor before: Gao Feng Inventor before: Wang Na Inventor before: Shi Xiuping Inventor before: Cui Xianjue Inventor before: Gong Yuchao |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180817 Termination date: 20190705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |