CN105064421A - Testing structure and testing method of steel pipe inclined pile self-balance method - Google Patents
Testing structure and testing method of steel pipe inclined pile self-balance method Download PDFInfo
- Publication number
- CN105064421A CN105064421A CN201510490440.4A CN201510490440A CN105064421A CN 105064421 A CN105064421 A CN 105064421A CN 201510490440 A CN201510490440 A CN 201510490440A CN 105064421 A CN105064421 A CN 105064421A
- Authority
- CN
- China
- Prior art keywords
- pipe pile
- load box
- inclined steel
- steel
- helical pitch
- 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
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Abstract
A testing structure of a steel pipe inclined pile self-balance method comprises a steel pipe inclined pile, and a load box arranged in the steel pipe inclined pile. The testing structure is characterized in that an upper baffle and a lower baffle are installed in the steel pipe inclined pile, and a sliding groove is formed in the lower baffle; a lead steel wire penetrates the load box and extends to the portion below the sliding groove, and the bottom end of the lead steel wire is connected with a check block. A lead ring is arranged at the top end of the steel pipe inclined pile. The lead steel wire extends to the top of the steel pipe inclined pile and is buckled on the lead ring. Compared with the prior art, the testing structure has the beneficial effects that device construction is easy; meanwhile, the angle of a reference beam can be adjusted specially for the inclination angle of the steel pipe inclined pile, and the steel pipe inclined pile and the reference beam can rapidly correspond; and after construction is finished, the load box can be pulled to be recycled, and the testing structure is suitable for application and popularization.
Description
Technical field
The invention belongs to Bridge Inspection field, be specifically related to a kind of inclined steel-pipe pile self-balancing approach test structure and method of testing.
Background technology
Load box is the special charger of one of building trade pile foundation supporting capacity self-balance test, is the structural assembly of one group of (one or more) jack (pressure unit).Common load box, be generally divided into the common oil cylinder (piston type or plunger type) of slipper seal for working cell and with cavate sealing pressure unit for working cell two type.Based on the advantage of cavate Sealing Technology, in the application in pile measurement field, cavate pressure unit has replaced the jack of traditional slipper seal in enormous quantities.
Patent application publication CN103147465A openly knows clearly a kind of load box for the test of open caisson self-balancing approach, comprises load casing, hydraulic jack, the hydraulic oil pipe be connected in turn with hydraulic jack and hydraulic loading device; Described load casing comprises doughnut-shaped steel plate, lower doughnut-shaped steel plate, outer ring baffle plate, interior ring baffle, wherein, upper doughnut-shaped steel plate and lower doughnut-shaped steel plate are oppositely arranged up and down, interior ring baffle and outer ring baffle plate are located at inner side and the periphery of doughnut-shaped steel plate and lower doughnut-shaped steel plate respectively, and form airtight casing with upper doughnut-shaped steel plate and lower doughnut-shaped steel plate, when hydraulic jack prestrain, upper doughnut-shaped steel plate and lower doughnut-shaped steel plate can move up and down separately; Described hydraulic jack is located in load casing, and the bottom of hydraulic jack is connected on lower doughnut-shaped steel plate, and the piston of hydraulic jack contacts with upper doughnut-shaped steel plate; The described load box for the test of open caisson self-balancing approach also comprises the displacement transfer device for testing upper doughnut-shaped steel plate and lower doughnut-shaped steel plate displacement.
Adopt the topmost device of self-balancing peg to be a kind of by the well-designed load box that can be used for loading, this device is formed primarily of the hydraulic jack of the location load-bearing steel plate and inside that connect two sections pile crown place.Load box is fixed on the equalization point place that piling bar is computed in advance, exerted pressure by built-in hydraulic jack, location-plate and hypomere stake in promotion, realize upper and lower two joint stakes respectively to upper and move downward, by the displacement transfer device be connected on load box, displacement signal is delivered to ground, draw corresponding curve according to reading, judge pile capacity, pile foundation settlement, stake elastic compression and ground plastic strain.Be embedded in the reinforcing steel strain gauge in pile body in advance by both sides, can be passed through reasoning obtain load at different levels under the pile shaft force at each stake interface, frictional resistance is with the transfer law of load and change in depth.
It is angled that one of feature of inclined steel-pipe pile is exactly pile body and gravity vertical, and horizontal impact power when can play uplift resistance and be pulled in shore by boats and ships is passed to rock stratum.On long piled wharf, Application comparison is extensive, and in addition as footbridge, in order to increase its stability, opposing river waterflow, to the horizontal thrust on footbridge basis and other horizontal forces, also adopts inclined steel-pipe pile, must, its construction difficulty is higher.
Inclined steel-pipe pile majority is squeezed into opening, it is inner that soil can pour in steel pipe pile, larger piling impact force can be produced in addition, load box special joint place is made to produce distortion, the load box displacement generation changing of the relative positions is caused to test, can not take out recycling after load box tests, for specific load box, its processing cost is relative with resource not environmentally.
Summary of the invention
The present invention is directed to the shortcoming of prior art, propose a kind of inclined steel-pipe pile self-balancing approach test structure and method of testing, this structure and method structure are simply, easy to operate, are applicable to promoting the use of.
For realizing object of the present invention, the technical solution used in the present invention is:
Inclined steel-pipe pile self-balancing approach test structure, comprises inclined steel-pipe pile, is located at inclined steel-pipe pile internal loading case, it is characterized in that: be provided with overhead gage and lower baffle plate in described inclined steel-pipe pile, described lower baffle plate offers chute; Helical pitch steel wire to extend to below chute through load box and is connected with block in its bottom, and described inclined steel-pipe pile top is provided with helical pitch ring, helical pitch steel wire extend to inclined steel-pipe pile top and through helical pitch ring;
Be provided with datum line beam above described inclined steel-pipe pile, described datum line beam one end is provided with pivoting support one, is provided with hoist below pivoting support one, and the described datum line beam other end is provided with pivoting support two; Described datum line beam is fixed with Magnetic gauge stand, below Magnetic gauge stand, is provided with displacement transducer, below displacement transducer, be connected with displacement bar; Described displacement bar totally 4, wherein: two displacement bars connect the upper plate of load box for measuring to top offset, the lower shoe that two other displacement bar connects load box is used for measuring to bottom offset, described pivoting support two is also provided with digital angle instrument, datum line beam is also provided with fixture, and described fixture is provided with suspension ring.
Preferentially, the internal diameter of described overhead gage is greater than the internal diameter with lower baffle plate; Described load box is also provided with braced structures.
Preferentially, described braced structures comprises fagging and is connected to the fixed block above upper plate, shifting chute is located at fagging both sides, it is hinge structure between described fagging and fixed block, fagging can rotate around fixed block, be provided with suspension hook block in described shifting chute, connection cord to be connected to above suspension hook block and to extend outside inclined steel-pipe pile.
Based on said apparatus, the invention allows for a kind of inclined steel-pipe pile self-balancing approach test structure method of testing, it is characterized in that, comprise the following steps:
1) set inclined steel-pipe pile, and the sediment in inclined steel-pipe pile is removed clean with reacting cycle sediment separator;
2) helical pitch steel wire is passed load box and helical pitch ring, make load box move down on lower baffle plate along the track of helical pitch steel wire, in load box folding process, connection cord is in tension, and fagging is upturned, and is convenient to braced structures and passes through overhead gage smoothly;
3) reference for installation beam is started, hook suspension ring lifting datum line beam by handling apparatus to move and be installed to desired location, make datum line beam that displacement bar and inclined steel-pipe pile are parallel to each other by hoist lift adjustment, the angles of display reading digital angle instrument confirms that whether displacement bar is parallel with inclined steel-pipe pile, and set displacement transducer, and connect data collecting instrument;
4) loosen connection cord, make in 90 degree between fagging and fixed block, now fagging withstands inclined steel-pipe pile, and load box is fixed, and before test, preparation terminates;
5) begin through high-pressure oil pump to test to the oil-filled loading of load box, displacement transducer constantly detects displacement data, until test terminates;
6) strained by connection cord, carry constantly, load box, along by helical pitch steel wire moves, finally takes out.
Compared with prior art, advantage of the present invention is: the construction of this device is simple, and the angle of the special joint of the tilt adjustable for inclined steel-pipe pile datum line beam, makes both corresponding fast simultaneously; After construction completes, load box can be drawn out recycling, environmental protection, is applicable to promoting the use of.
Accompanying drawing explanation
The following accompanying drawing by means of embodiment carries out brief description to the present invention now.In accompanying drawing:
Fig. 1 shows the schematic diagram of inclined steel-pipe pile self-balancing approach test structure of the present invention;
Fig. 2 shows the structural representation of braced structures of the present invention;
Fig. 3 shows the structural representation of datum line beam of the present invention;
Fig. 4 shows fixture of the present invention and is arranged on structural representation on datum line beam.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Embodiment 1
As shown in the figure, inclined steel-pipe pile self-balancing approach test structure, comprises inclined steel-pipe pile 3, is located at inclined steel-pipe pile 3 internal loading case 6, is provided with overhead gage 8 and lower baffle plate 10 in described inclined steel-pipe pile 3, and the internal diameter of overhead gage 8 is greater than the internal diameter with lower baffle plate 10; Such load box 6 wears only lower baffle plate 10 by overhead gage 8, lower baffle plate 10 offers chute 11; Helical pitch steel wire 2 to extend to below chute 11 through load box 6 and is connected with block 12 in its bottom, described inclined steel-pipe pile 3 top is provided with helical pitch ring 1, helical pitch steel wire 2 extends to the top of inclined steel-pipe pile 3 and passes helical pitch ring 1, limited displacement due to helical pitch steel wire 2 pairs of load boxes 6 is tailor-made to be used, can effectively prevent load box 6 and inclined steel-pipe pile 3 from colliding, helical pitch steel wire 2 top pulley is strained.
Be provided with datum line beam 17 above inclined steel-pipe pile 3, described datum line beam 17 one end is provided with pivoting support 1, is provided with hoist 14 below pivoting support 1, and described datum line beam 17 other end is provided with pivoting support 2 50, described datum line beam 17 is fixed with Magnetic gauge stand 18, below Magnetic gauge stand 18, is provided with displacement transducer 15, below displacement transducer 15, be connected with displacement bar 16, described displacement bar 16 totally 4, wherein: two displacement bars connect the upper plate 4 of load box 6 for measuring to top offset, two other displacement bar connects the lower shoe 7 of load box 6 for measuring to bottom offset, described pivoting support 2 50 is also provided with digital angle instrument 51, digital angle instrument 51 connects computer by data wire, by the angle that the display datum line beam 17 of data digital inclinometer 51 offsets, staff determines that whether displacement bar 16 is parallel with inclined steel-pipe pile 3, datum line beam 17 is also provided with fixture 60, the quantity of fixture 60 is four, two, one end, and symmetrical installation, described fixture 60 is provided with suspension ring 61.
Load box 6 is also provided with braced structures 9, the fixed block 906 that braced structures 9 comprises fagging 904 and is connected to above upper plate 4, shifting chute 901 is located at fagging 904 both sides, be hinge structure between described fagging 904 and fixed block 906, fagging 904 can rotate around fixed block 906, suspension hook block 902 is provided with in described shifting chute 901, connection cord is connected to suspension hook block 902 above and extend outside inclined steel-pipe pile 3, connection cord can pull fagging 904 to rotate, and connection cord is nylon rope or wire rope.
Based on said apparatus, the invention allows for a kind of inclined steel-pipe pile self-balancing approach test structure method of testing, comprise the following steps:
1) position of precalculated load box 6 placement, has welded overhead gage 8 and lower baffle plate 10,2 steel-pipe weldings has been formed inclined steel-pipe pile 3 to one piece, sets inclined steel-pipe pile 3, and is removed by the sediment in inclined steel-pipe pile 3 clean with reacting cycle sediment separator;
2) helical pitch steel wire 2 is passed load box 6 and helical pitch ring 1, make load box 6 move down on lower baffle plate 10 along the track of helical pitch steel wire 2, in load box 6 folding process, connection cord is in tension, fagging 904 is upturned, is convenient to braced structures 9 smoothly by overhead gage 8;
3) reference for installation beam 17 is started, hook suspension ring 61 by handling apparatus to lift datum line beam 17 and move and be installed to desired location, make datum line beam 17 that displacement bar 16 and inclined steel-pipe pile 3 are parallel to each other by hoist 14 lift adjustment, the angles of display reading digital angle instrument 51 confirms that whether displacement bar 16 is parallel with inclined steel-pipe pile 3, and set displacement transducer 15, and connect data collecting instrument;
4) loosen connection cord, make in 90 degree between fagging 904 and fixed block 906, now fagging 904 withstands inclined steel-pipe pile 3, and load box 6 is fixed, and before test, preparation terminates;
5) begin through high-pressure oil pump to test to the oil-filled loading of load box 6, displacement transducer 15 constantly detects displacement data, until test terminates;
6) strained by connection cord, carry constantly, load box 6, along by helical pitch steel wire 2 moves, finally takes out.
Claims (4)
1. inclined steel-pipe pile self-balancing approach test structure, comprise inclined steel-pipe pile (3), be located at inclined steel-pipe pile (3) internal loading case (6), it is characterized in that: overhead gage (8) and lower baffle plate (10) are installed in described inclined steel-pipe pile (3), described lower baffle plate (10) offer chute (11); Helical pitch steel wire (2) extends to chute (11) below through load box (6) and is connected with block (12) in its bottom, described inclined steel-pipe pile (3) top is provided with helical pitch ring (1), and the other end of helical pitch steel wire (2) extends to the top of inclined steel-pipe pile (3) and passes helical pitch ring (1);
Described inclined steel-pipe pile (3) top is provided with datum line beam (17), described datum line beam (17) one end is provided with pivoting support one (13), pivoting support one (13) below is provided with hoist (14), and described datum line beam (17) other end is provided with pivoting support two (50); Described datum line beam (17) is fixed with Magnetic gauge stand (18), Magnetic gauge stand (18) below is provided with displacement transducer (15), and displacement transducer (15) below is connected with displacement bar (16); Described displacement bar (16) totally 4, wherein: two displacement bars connect the upper plate (4) of load box (6) for measuring to top offset, two other displacement bar connects the lower shoe (7) of load box (6) for measuring to bottom offset, datum line beam (17) is also provided with fixture (60), described fixture (60) is provided with suspension ring (61).
2. inclined steel-pipe pile self-balancing approach test structure according to claim 1, is characterized in that, the internal diameter of described overhead gage (8) is greater than the internal diameter with lower baffle plate (10); Described load box (6) is also provided with braced structures (9).
3. inclined steel-pipe pile self-balancing approach test structure according to claim 2, it is characterized in that, described braced structures (9) comprises fagging (904) and is connected to the fixed block (906) above upper plate (4), shifting chute (901) is located at fagging (904) both sides, be hinge structure between described fagging (904) and fixed block (906), fagging (904) can rotate around fixed block (906), be provided with suspension hook block (902) in described shifting chute (901), connection cord is connected to suspension hook block (902) above and extend inclined steel-pipe pile (3) outside.
4. an inclined steel-pipe pile self-balancing approach test structure method of testing as claimed in claim 1, is characterized in that, comprise the following steps:
1) set inclined steel-pipe pile (3), and the sediment in inclined steel-pipe pile (3) is removed clean with reacting cycle sediment separator;
2) by helical pitch steel wire (2) through load box (6) and helical pitch ring (1), load box (6) is made to move down on lower baffle plate (10) along the track of helical pitch steel wire (2), in load box (6) folding process, connection cord is in tension, fagging (904) is upturned, is convenient to braced structures (9) smoothly by overhead gage (8);
3) reference for installation beam (17) is started, hook suspension ring (61) lifting datum line beam (17) movement by handling apparatus and be installed to desired location, make datum line beam (17) that displacement bar (16) and inclined steel-pipe pile (3) are parallel to each other by hoist (14) lift adjustment, the angles of display reading digital angle instrument (51) confirms that whether displacement bar (16) is parallel with inclined steel-pipe pile (3), set displacement transducer (15), and connect data collecting instrument;
4) loosen connection cord, make in 90 degree between fagging (904) and fixed block (906), now fagging (904) withstands inclined steel-pipe pile (3), and load box (6) is fixed, and before test, preparation terminates;
5) begin through high-pressure oil pump to test to load box (6) oil-filled loading, displacement transducer (15) constantly detects displacement data, until test terminates;
6) strained by connection cord, carry constantly, load box (6) moves along by helical pitch steel wire (2), finally takes out.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610386949.9A CN105937250B (en) | 2015-08-12 | 2015-08-12 | Inclined steel-pipe pile self-balancing approach test structure and method of testing |
| CN201510490440.4A CN105064421B (en) | 2015-08-12 | 2015-08-12 | Testing structure and testing method of steel pipe inclined pile self-balance method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510490440.4A CN105064421B (en) | 2015-08-12 | 2015-08-12 | Testing structure and testing method of steel pipe inclined pile self-balance method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610386949.9A Division CN105937250B (en) | 2015-08-12 | 2015-08-12 | Inclined steel-pipe pile self-balancing approach test structure and method of testing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105064421A true CN105064421A (en) | 2015-11-18 |
| CN105064421B CN105064421B (en) | 2017-01-11 |
Family
ID=54493908
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510490440.4A Active CN105064421B (en) | 2015-08-12 | 2015-08-12 | Testing structure and testing method of steel pipe inclined pile self-balance method |
| CN201610386949.9A Active CN105937250B (en) | 2015-08-12 | 2015-08-12 | Inclined steel-pipe pile self-balancing approach test structure and method of testing |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610386949.9A Active CN105937250B (en) | 2015-08-12 | 2015-08-12 | Inclined steel-pipe pile self-balancing approach test structure and method of testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105064421B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2401189A (en) * | 2003-02-28 | 2004-11-03 | Roxbury Ltd | Friction and bearing force testing apparatus |
| CN103147465A (en) * | 2013-03-04 | 2013-06-12 | 东南大学 | Load box for testing open caisson with self-balancing method |
| CN103422517A (en) * | 2013-08-23 | 2013-12-04 | 南昌永祺科技发展有限公司 | Stacked pile body self-counter-force balance load box |
| CN204163118U (en) * | 2014-08-28 | 2015-02-18 | 浙江龙舜建设集团有限公司 | Self-balancing peg structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896712A (en) * | 2006-06-14 | 2007-01-17 | 郭杨 | Planar loading testing method and tester for self-balanced deep foundation piles |
| CN201463838U (en) * | 2009-05-31 | 2010-05-12 | 葛云峰 | Displacement acquisition device for self-balance loading method |
| KR101188004B1 (en) * | 2009-12-22 | 2012-10-04 | 성균관대학교산학협력단 | Loading Device For Pile Load Test |
| CN102121254B (en) * | 2011-01-17 | 2012-07-18 | 东南大学 | Load box for testing bearing capacity of steel pipe pile |
| CN102535529A (en) * | 2011-12-08 | 2012-07-04 | 中铁五局（集团）有限公司 | Construction method of self-balancing method pile foundation bearing capacity test device |
-
2015
- 2015-08-12 CN CN201510490440.4A patent/CN105064421B/en active Active
- 2015-08-12 CN CN201610386949.9A patent/CN105937250B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2401189A (en) * | 2003-02-28 | 2004-11-03 | Roxbury Ltd | Friction and bearing force testing apparatus |
| CN103147465A (en) * | 2013-03-04 | 2013-06-12 | 东南大学 | Load box for testing open caisson with self-balancing method |
| CN103422517A (en) * | 2013-08-23 | 2013-12-04 | 南昌永祺科技发展有限公司 | Stacked pile body self-counter-force balance load box |
| CN204163118U (en) * | 2014-08-28 | 2015-02-18 | 浙江龙舜建设集团有限公司 | Self-balancing peg structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105064421B (en) | 2017-01-11 |
| CN105937250B (en) | 2018-02-09 |
| CN105937250A (en) | 2016-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102121254B (en) | Load box for testing bearing capacity of steel pipe pile | |
| CN102535529A (en) | Construction method of self-balancing method pile foundation bearing capacity test device | |
| CN104406568A (en) | Device and method for monitoring settlement of ground surface in deep water area | |
| CN103147465B (en) | Load box for testing open caisson with self-balancing method | |
| CN110984214A (en) | Offshore wind power single pile-wing plate-rockfill composite foundation and construction method thereof | |
| CN105155596A (en) | Structure and method for testing steel pipe inclined pile load box | |
| CN107401118A (en) | A kind of suspension bridge pier-stage type prestressing force anchorage | |
| CN204849858U (en) | Steel tube pile self -balance method load box test structure | |
| CN204849859U (en) | Bridge steel tube pile self -balance method load box test structure | |
| CN205894049U (en) | A first pitching pile formula jacket structure for marine booster station | |
| CN105019486A (en) | Steel tube batter pile self-balance method load box testing structure and method | |
| CN202039388U (en) | Load box for testing bearing capacity of steel pipe pile | |
| CN204214437U (en) | Profundal zone surface subsidence monitoring device | |
| CN105064424A (en) | Self-balancing load box testing structure and method for inclined steel pipe pile of bridge | |
| CN204849857U (en) | Steel tube pile self -balance method tests structure | |
| CN105064421B (en) | Testing structure and testing method of steel pipe inclined pile self-balance method | |
| CN104746522B (en) | A kind of for dredging silt matter soil district foundation ditch can intelligent deformation regulation tiltedly throw support support system | |
| CN206591438U (en) | A kind of suspension bridge pier-stage type prestressing force anchorage | |
| CN201850549U (en) | Stepped anti-settling pile leg of ocean platform | |
| CN205892214U (en) | A swift current section of thick bamboo structure for straight line swing shipment | |
| CN212866016U (en) | Leveling structure suitable for offshore wind power pile foundation construction platform | |
| CN110499791B (en) | Method for detecting pulling-resistant bearing capacity of suction bucket | |
| CN210597410U (en) | Foundation detection equipment | |
| CN206625209U (en) | A kind of brining ground foundation processing unit | |
| CN217998205U (en) | Bearing capacity testing device for foundation pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Jie Inventor after: Zhu Liqian Inventor before: Lin Hui |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160919 Address after: 250101 R & D center, No. 2350, Pioneer Road, hi tech Zone, Shandong, Ji'nan 1-102-1 Applicant after: SHANDONG HUAAN DETECTION TECHNOLOGY Co.,Ltd. Address before: Street peak village Dinghai District of Lincheng city of Zhoushan province Zhejiang 316000 Ni Jia No. 19 Applicant before: ZHOUSHAN ZHIHAI TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 250000 Building 5, 2966 Chunhui Road, high tech Zone, Jinan City, Shandong Province Patentee after: Hua'an Testing Group Co.,Ltd. Address before: 1-102-1, R&D Center, 2350 Kaifeng Road, High-tech Zone, Jinan City, Shandong Province, 250101 Patentee before: SHANDONG HUAAN DETECTION TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |