CN106639070A - Assembly-type double template inner connection set for cast-in-situ wall body - Google Patents
Assembly-type double template inner connection set for cast-in-situ wall body Download PDFInfo
- Publication number
- CN106639070A CN106639070A CN201710083090.9A CN201710083090A CN106639070A CN 106639070 A CN106639070 A CN 106639070A CN 201710083090 A CN201710083090 A CN 201710083090A CN 106639070 A CN106639070 A CN 106639070A
- Authority
- CN
- China
- Prior art keywords
- steel
- concrete
- template
- connector
- round
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2/8605—Walls made by casting, pouring, or tamping in situ made in permanent forms without spacers
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses an assembly-type double template inner connection set for the cast-in-situ wall body. The inner connection set comprises a double column inner regulation connecting piece 1, a double column inner steel mesh connecting piece 2 and a double column inner cross beam connecting piece 3; the double column inner regulation connecting piece 1 is composed of a round-shape steel column 11, a connecting screw rod 12, and a regulating screw nut 13; the double column inner steel mesh connecting piece 2 is composed of the round-shape steel column 11 and a steel wire mesh 21 which is formed by weaving a horizontal steel wire 22 and a perpendicular steel wire 23. The double column inner cross beam connecting piece 3 is composed of the round-shape steel column 11 and a steel wire mesh 31 formed by weaving a horizontal steel wire 22 and a perpendicular steel wire 23. The connecting pieces 1, 2 and 3 are used for the inner connection of the assembly type concrete thermal template 4 and a concrete template 5 of different parts of the cast-in-situ concrete wall body, the opposite surfaces of the concrete thermal template 4 and the concrete template 5 are evenly provided with vertical round-shape steel pipes 41 with openings, the round-shape steel column 11 of the connecting pieces 1, 2 and 3 is inserted in the round-shape steel pipe 41 with openings, and an extremely stable double template structure is formed.
Description
Technical field
The present invention relates to a kind of be used for cast-in-situ wall assembled double-template interconnecting piece group, belong to the realm of building construction.
Background technology
At present, the main form of construction work of China's skyscraper is that two-step method is carried out, the first step, reinforced concrete shear wall structure
Main body construction, inside and outside reinforced concrete shear wall needs to support steel form or Bamboo Formwork, and steel form cost is high, quality weight, assembly and disassembly
Inconvenience, lifting, transport, maintenance cost are high；Bamboo Formwork can only typically reuse 4-5 time it is necessary to scrap, and cost is also very high；
In addition connection through hole closing expense of labour cost and template connecting piece formation of template etc. is assembled and disassembled, these cause construction
Cost is greatly increased；Second step, after the completion of reinforced concrete shear wall exterior wall, in addition it is also necessary to carry out external wall outer insulation construction, its
Mainly " exterior insulation system for polyphenyl plate thin plastering exterior wall ", this kind of heat-insulation system is quite a lot of in the problem that China comes out.It is main
Show：Outer wall cracking, external thermal insulation come off, heat-insulation layer poor durability, fire protecting performance are poor, do not ask with life-span etc. with building
Topic.These two aspects causes structural quality difference and building cost is high.In order to the two-step method for overcoming existing skyscraper traditional is applied
Work technology, present inventors have proposed by above-mentioned shear wall main body and the step of external wall outer insulation two construction be improved to build shear wall with
The sandwich thermal insulated step construction of exterior wall is envisioned, it is necessary to using special the concrete heat-insulating template with efficient insulation layer and concrete mould
Plate, replaces traditional steel form or Bamboo Formwork and external thermal insulation system, in the middle of concrete heat-insulating template and concrete blinding,
Using matched cast-in-situ wall assembled double-template interconnecting piece group, it is included in adjusting connector in twin columns, twin columns
Steel mesh connects
Test proves that this kind of construction technology greatly reduces construction cost, improves efficiency of construction, improves construction quality, does
To insulation and structure-integrated, insulation material and building same life-span, main body and exterior-wall heat insulation synchronous construction are poured, reach energy-conservation
75% index, meets new edition《Code for fire protection design of buildings》The regulation of GB50016-2014, before extremely wide market
Scape.
It is building body and exterior wall that the present invention attempts to solve as existing building body and the construction of external thermal insulation two-step method
Sandwich thermal insulated one-step method construction, matched one kind is used for cast-in-situ wall assembled double-template interconnecting piece group.
The content of the invention
It is an object of the invention to：The construction technology that the two-step method construction for overcoming above-mentioned existing skyscraper traditional is present lacks
Fall into, be to realize that skyscraper one-step method is constructed, there is provided one kind is for cast-in-situ wall assembly concrete heat insulation formwork and concrete
The double-template interconnecting piece group of template.
The technical scheme is that what is be achieved in that：One kind is used for cast-in-situ wall assembled double-template interconnecting piece group,
It is characterized in that：Including crossbeam connector 3 in adjusting connector in twin columns 1, twin columns inner steel web connector 2 and twin columns；In twin columns
Adjusting connector 1 by circular steel column 11, connection wire rod 12, adjust screw 13 and constitute, 2 to 3 connection wire rods 12 and circular steel column
11 vertical weldings and in the same plane, are adjusted screw 13 and are connected by screw thread with 2 connection wire rods 12；Twin columns inner steel web connects
Fitting 2 is made up of the steel fabric sheet 21 that circular steel column 11, horizontal wire 22 and vertical steel wire 23 are woven into, vertical steel wire 23 and 2
Individual circular steel column 11 is integrally welded, and in the same plane；Crossbeam connector 3 is by circular steel column 11, horizontal steel in twin columns
The half steel silk netting 31 that silk 22 and vertical steel wire 23 are woven into is constituted, and vertical steel wire 23 is integrally welded with 2 circular steel columns 11,
And in the same plane；Half steel silk netting 31 is wide with steel fabric sheet 21, and its length is the 1/2 of steel fabric sheet 21；Interior connection
Part group is used for the assembly concrete heat insulation formwork 4 of in-situ concrete wall different parts and the interior connection of concrete blinding 5, mixes
Solidifying soil heat insulation formwork 4 and concrete blinding 5 are uniformly provided with the vertical round steel pipe 41 with gap, interior connection on two relative faces
The circular steel column 11 of part group is isometric with the round steel pipe 41 with gap in concrete heat-insulating template 4 and concrete blinding 5, interior connection
In the insertion concrete heat-insulating of circular steel column 11 template 4 of part group and round steel pipe 41 of the concrete blinding 5 with gap, one is formed
Extremely stable double-template structure；The size-adjusting function of adjusting connector 1 in twin columns, for the construction of different-thickness body of wall, protects
The dimensional accuracy of cast-in-situ steel reinforced concrete shear wall is demonstrate,proved；Twin columns inner steel web connector 2 be mainly used in solids size body of wall and
The interior connection of concrete heat-insulating template 4 and concrete blinding 5 at hole；3 are mainly used in fixing between connecting in crossbeam in twin columns
The interior connection of concrete heat-insulating template 4 and concrete blinding 5 at size body of wall crossbeam, interconnecting piece group and concrete heat preservation module
Plate 4 and concrete blinding 5 form the extremely stable double-template structure of a rigidity, need not form removal again after construction.
Described one kind is used for cast-in-situ wall assembled double-template interconnecting piece group, it is characterised in that：Described connector
1st, connector 2 and connector 3 will carry out preservative treatment.
Description of the drawings：
Fig. 1 is the schematic perspective view of adjusting connector 1 in twin columns of the present invention；
Fig. 2 is the schematic perspective view of twin columns inner steel web connector 2 of the present invention；
Fig. 3 is the schematic perspective view of crossbeam connector 3 in twin columns of the present invention；
Fig. 4 is concrete heat-insulating template 4 schematic perspective view of the present invention for connection：
Fig. 5 is used to connect the schematic perspective view of concrete blinding 5 for the present invention；
Fig. 6 is the solid of connection concrete heat-insulating template 4 and concrete blinding 5 in adjusting connector 1 in twin columns of the present invention
Schematic diagram；
Fig. 7 is that the solid of the solidifying soil heat insulation formwork 4 of connection and concrete blinding 5 in twin columns inner steel web connector 2 of the present invention is shown
It is intended to；
In figure：1 is adjusting connector in twin columns
11 are circular steel column
12 is connection wire rod
13 are regulation screw
2 is twin columns inner steel web connector
21 is steel fabric sheet
22 is horizontal wire
23 is vertical steel wire
3 is crossbeam connector in twin columns
31 is half steel silk netting
4 is concrete heat-insulating template
41 is the round steel pipe with gap on a big face of concrete heat-insulating template 4 and concrete blinding 5
42 is the high-efficiency insulated plate positioned at concrete heat-insulating formwork core portion
5 is concrete blinding
51 is concrete
6 is in-situ concrete wall crossbeam reinforcing bar
Specific embodiment
The present invention is achieved in that below in conjunction with the accompanying drawings 1～Fig. 7 is described further：
The technical scheme is that what is be achieved in that：One kind is used for cast-in-situ wall assembled double-template interconnecting piece group,
It is characterized in that：Including crossbeam connector 3 in adjusting connector in twin columns 1, twin columns inner steel web connector 2 and twin columns；In twin columns
Adjusting connector 1 by circular steel column 11, connection wire rod 12, adjust screw 13 and constitute, 2 to 3 connection wire rods 12 and circular steel column
11 vertical weldings and in the same plane, are adjusted screw 13 and are connected by screw thread with 2 connection wire rods 12；Twin columns inner steel web connects
Fitting 2 is made up of the steel fabric sheet 21 that circular steel column 11, horizontal wire 22 and vertical steel wire 23 are woven into, vertical steel wire 23 and 2
Individual circular steel column 11 is integrally welded, and in the same plane；Crossbeam connector 3 is by circular steel column 11, horizontal steel in twin columns
The half steel silk netting 31 that silk 22 and vertical steel wire 23 are woven into is constituted, and vertical steel wire 23 is integrally welded with 2 circular steel columns 11,
And in the same plane；Half steel silk netting 31 is wide with steel fabric sheet 21, and its length is the 1/2 of steel fabric sheet 21；Interior connection
Part group is used for the assembly concrete heat insulation formwork 4 of in-situ concrete wall different parts and the interior connection of concrete blinding 5, mixes
Solidifying soil heat insulation formwork 4 and concrete blinding 5 are uniformly provided with the vertical round steel pipe 41 with gap, interior connection on two relative faces
The circular steel column 11 of part group is isometric with the round steel pipe 41 with gap in concrete heat-insulating template 4 and concrete blinding 5, interior connection
In the insertion concrete heat-insulating of circular steel column 11 template 4 of part group and round steel pipe 41 of the concrete blinding 5 with gap, one is formed
Extremely stable double-template structure；The size-adjusting function of adjusting connector 1 in twin columns, for the construction of different-thickness body of wall, protects
The dimensional accuracy of cast-in-situ steel reinforced concrete shear wall is demonstrate,proved；Twin columns inner steel web connector 2 be mainly used in solids size body of wall and
The interior connection of concrete heat-insulating template 4 and concrete blinding 5 at hole；3 are mainly used in fixing between connecting in crossbeam in twin columns
The interior connection of concrete heat-insulating template 4 and concrete blinding 5 at size body of wall crossbeam, interconnecting piece group and concrete heat preservation module
Plate 4 and concrete blinding 5 form the extremely stable double-template structure of a rigidity, need not form removal again after construction.
Described one kind is used for cast-in-situ wall assembled double-template interconnecting piece group, it is characterised in that：Described connector
1st, connector 2 and connector 3 will carry out preservative treatment.
The beneficial effect comprise that：
1) a kind of use for cast-in-situ wall assembled double-template interconnecting piece group, effectively by concrete heat-insulating template
4 and concrete blinding 5 firmly connect into an extremely stable rigid overall structure, the traditional two-step method of skyscraper is applied
Work skill upgrading is one-step method construction, improves efficiency of construction, reduces construction labor intensity.
2) it is a kind of to be used for cast-in-situ wall assembled double-template interconnecting piece group, concrete heat-insulating template 4 and concrete blinding 5
Product factorial praluction, live normalized assembled construction, speed of application is fast, and construction quality is high, free from environmental pollution, reduces construction
Cost, improves energy saving building quality.
3) a kind of use for cast-in-situ wall assembled double-template interconnecting piece group so that the He of concrete heat-insulating template 4
Concrete blinding 5 becomes non-dismantling formwork, without the need for form removal again after construction, eliminate dismantle again template, closing connection hole and
The operations such as inner and outer wall plastering and expense.
4) a kind of application for cast-in-situ wall assembled double-template interconnecting piece group so that one-step method construction becomes can
Can, concrete heat-insulating template 4 is connected with the double-template of concrete blinding 5 by interconnecting piece (1,2,3), the cast-in-place concrete of formation
Sandwiched thermal-insulating wall, drastically increases the insulation of building, heat-insulated standard, meets new edition《Code for fire protection design of buildings》
The regulation of GB50016-2014；Compared with Current Building ' outer wall heat insulating, insulation, effect of heat insulation are substantially increased, reduce building
Thing is built in energy-saving heat preserving, the operating cost of heat-insulated aspect.With insulation, heat-insulated, fire prevention several functions, with building structure one
The characteristics of change, insulation material and building are with the life-span.
Claims (2)
- It is 1. a kind of to be used for cast-in-situ wall assembled double-template interconnecting piece group, it is characterised in that：Including adjusting connector in twin columns (1), crossbeam connector (3) in twin columns inner steel web connector (2) and twin columns；Adjusting connector (1) is by circular steel column in twin columns (11), connection wire rod (12), regulation screw (13) is constituted, and 2 to 3 connection wire rods (12) are with circular steel column (11) vertical welding simultaneously In the same plane, adjust screw (13) to be connected by screw thread with 2 connection wire rods (12)；Twin columns inner steel web connector (2) The steel fabric sheet (21) being woven into by circular steel column (11), horizontal wire (22) and vertical steel wire (23) is constituted, vertical steel wire (23) it is integrally welded with 2 circular steel columns (11), and in the same plane；Crossbeam connector (3) is by circular steel in twin columns Half steel silk netting (31) that post (11), horizontal wire (22) and vertical steel wire (23) are woven into is constituted, vertical steel wire (23) with 2 Circular steel column (11) is integrally welded, and in the same plane；Half steel silk netting (31) is wide with steel fabric sheet (21), its length Spend for the 1/2 of steel fabric sheet (21)；Interconnecting piece group is used for the assembly concrete of in-situ concrete wall different parts and is incubated The interior connection of template (4) and concrete blinding (5), on two relative faces of concrete heat-insulating template (4) and concrete blinding (5) It is uniformly provided with the vertical round steel pipe (41) with gap, circular steel column (11) and the concrete heat-insulating template (4) of interconnecting piece group It is isometric with the round steel pipe with gap (41) in concrete blinding (5), circular steel column (11) the insertion concrete of interconnecting piece group In heat insulation formwork (4) and the round steel pipe of (5) with gap concrete blinding (41), an extremely stable double-template structure is formed.
- 2. according to claim 1 a kind of for cast-in-situ wall assembled double-template interconnecting piece group, it is characterised in that：Institute The connector (1,2,3) stated will carry out preservative treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083090.9A CN106639070A (en) | 2017-02-16 | 2017-02-16 | Assembly-type double template inner connection set for cast-in-situ wall body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083090.9A CN106639070A (en) | 2017-02-16 | 2017-02-16 | Assembly-type double template inner connection set for cast-in-situ wall body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106639070A true CN106639070A (en) | 2017-05-10 |
Family
ID=58845154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710083090.9A Pending CN106639070A (en) | 2017-02-16 | 2017-02-16 | Assembly-type double template inner connection set for cast-in-situ wall body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106639070A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724589A (en) * | 2017-09-29 | 2018-02-23 | 浙江未来加电子商务有限公司 | I-shaped suspension rod |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19904431A1 (en) * | 1999-02-04 | 2000-08-10 | Hans Schuller | Spacer for thin wall plates has moulded connectors on facing insides of wall plates to hold counter connectors of rod-like spacers which adapt to required wall thickness |
| CN1766248A (en) * | 2005-10-17 | 2006-05-03 | 朱秦江 | Composite thermal insulation concrete wall and its assembled template |
| CN201065589Y (en) * | 2007-03-08 | 2008-05-28 | 谢玉杰 | Facing wall panel self-simulation prestressed steel wire net enhanced light aggregate concrete structure cast in-situ wall |
| CN201292580Y (en) * | 2008-08-20 | 2009-08-19 | 张富德 | Building module for energy-conserving anti-seismic structure for replacing cast-in-situ template |
| CN201411775Y (en) * | 2009-06-08 | 2010-02-24 | 南京工业大学 | Energy-saving building architectural system suitable for industrialized production |
| CN102127930A (en) * | 2010-07-19 | 2011-07-20 | 曾庆胜 | Net die member for steel-concrete building and method for constructing enclosure by combining net die members and filling into a frame shear wall |
| CN102182317A (en) * | 2011-03-18 | 2011-09-14 | 北京华美科博科技发展有限公司 | Concrete spray steel mesh sandwich formwork cast-in-place shear wall construction method and shear wall |
| GB201306456D0 (en) * | 2013-04-10 | 2013-05-22 | Howorth Graeme C | Formwork system |
| CN205557923U (en) * | 2016-03-09 | 2016-09-07 | 彭志军 | Light weight, high strength degree equipment wall body |
-
2017
- 2017-02-16 CN CN201710083090.9A patent/CN106639070A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19904431A1 (en) * | 1999-02-04 | 2000-08-10 | Hans Schuller | Spacer for thin wall plates has moulded connectors on facing insides of wall plates to hold counter connectors of rod-like spacers which adapt to required wall thickness |
| CN1766248A (en) * | 2005-10-17 | 2006-05-03 | 朱秦江 | Composite thermal insulation concrete wall and its assembled template |
| CN201065589Y (en) * | 2007-03-08 | 2008-05-28 | 谢玉杰 | Facing wall panel self-simulation prestressed steel wire net enhanced light aggregate concrete structure cast in-situ wall |
| CN201292580Y (en) * | 2008-08-20 | 2009-08-19 | 张富德 | Building module for energy-conserving anti-seismic structure for replacing cast-in-situ template |
| CN201411775Y (en) * | 2009-06-08 | 2010-02-24 | 南京工业大学 | Energy-saving building architectural system suitable for industrialized production |
| CN102127930A (en) * | 2010-07-19 | 2011-07-20 | 曾庆胜 | Net die member for steel-concrete building and method for constructing enclosure by combining net die members and filling into a frame shear wall |
| CN102182317A (en) * | 2011-03-18 | 2011-09-14 | 北京华美科博科技发展有限公司 | Concrete spray steel mesh sandwich formwork cast-in-place shear wall construction method and shear wall |
| GB201306456D0 (en) * | 2013-04-10 | 2013-05-22 | Howorth Graeme C | Formwork system |
| CN205557923U (en) * | 2016-03-09 | 2016-09-07 | 彭志军 | Light weight, high strength degree equipment wall body |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724589A (en) * | 2017-09-29 | 2018-02-23 | 浙江未来加电子商务有限公司 | I-shaped suspension rod |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107143034A (en) | A kind of assembly concrete frame structure beam column rigid connection node | |
| CN108442585B (en) | Outer heat preservation antidetonation integrated shear force wall of form removal exempts from | |
| CN105019573A (en) | Prefabricated external wall template structure system with heat insulation function, and construction method thereof | |
| CN107663903B (en) | Connecting structure of assembled concrete shear wall and connecting beam and prefabricating and assembling method | |
| CN107989238A (en) | A kind of cast-in-place sandwiched heat-preservation shear wall structure, assembled architecture and engineering method | |
| CN207700527U (en) | A kind of building column that steel pipe is combined with batten plate | |
| CN102400509A (en) | Assembled prefabricated light steel composite floor | |
| CN106639070A (en) | Assembly-type double template inner connection set for cast-in-situ wall body | |
| CN210049403U (en) | Frame and shear wall core tube combined assembly type structure system | |
| CN210049443U (en) | T-shaped node of long-shaped steel and threaded sleeve combined type steel concrete combined pipe | |
| CN208748941U (en) | A kind of concrete prefabricated steel wire net rack heat insulating sandwich floor | |
| CN111636596A (en) | Structure of wall with heat-insulating layer and construction method thereof | |
| CN206495372U (en) | One kind is used for cast-in-situ wall assembled double-template interconnecting piece group | |
| CN106996212B (en) | Light house system with shockproof function | |
| CN214006138U (en) | Steel wire mesh connecting piece for precast concrete sandwich heat-insulation wallboard | |
| CN210049428U (en) | Sandwich heat-insulating steel concrete composite pipe structure | |
| CN210049404U (en) | Frame and shear force wall combination assembled structure system | |
| CN210421533U (en) | Special connecting piece of concrete placement detaching-free composite heat preservation template | |
| CN210194866U (en) | Prefabricated assembled concrete frame | |
| CN109235709B (en) | Full cast-in-place outer wall structure of building | |
| CN207905144U (en) | A kind of steel wire abortive haul framework thermal insulation board | |
| CN207597652U (en) | A kind of cast-in-place sandwiched heat-preservation shear wall structure and assembled architecture | |
| CN103628673B (en) | A kind of floor aluminum alloy pattern plate splicing formwork erecting structure system | |
| CN208455859U (en) | A kind of prefabricated thermal insulation combined wall board | |
| CN110924557A (en) | Aluminum alloy framework building structure wall capable of being assembled and connected and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 266300 Zijin garden, No. 245 Jiaozhou West Road, Jiaozhou, Qingdao, Shandong. Applicant after: Qingdao great energy technology Co., Ltd. Address before: 266300 Shandong Road, North pass industrial park, Jiaozhou City, Qingdao, Shandong, 35 Applicant before: Qingdao great energy technology Co., Ltd. |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Qingdao great energy technology Co., Ltd. Document name: Notification of Passing Examination on Formalities |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180926 Address after: 266300 Zijin garden, No. 245 Jiaozhou West Road, Jiaozhou, Qingdao, Shandong. Applicant after: Liu Chuanwei Address before: 266300 Zijin garden, No. 245 Jiaozhou West Road, Jiaozhou, Qingdao, Shandong. Applicant before: Qingdao great energy technology Co., Ltd. |