CN105633642B - A kind of anti-loosening electric power clamp fitting - Google Patents
A kind of anti-loosening electric power clamp fitting Download PDFInfo
- Publication number
- CN105633642B CN105633642B CN201610097672.8A CN201610097672A CN105633642B CN 105633642 B CN105633642 B CN 105633642B CN 201610097672 A CN201610097672 A CN 201610097672A CN 105633642 B CN105633642 B CN 105633642B
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- CN
- China
- Prior art keywords
- claw
- core pipe
- plate portion
- radially
- pressing plate
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
- H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
Landscapes
- Clamps And Clips (AREA)
Abstract
The invention discloses a kind of anti-loosening electric power clamp fittings, including a core pipe, two pressure rings and two casing pressure claw assemblies；Two groups of pilot holes are equipped on core pipe tube wall side by side；Each group pilot hole includes three radially-directed holes；Each casing pressure claw assembly includes three claws；Each claw is equipped with pressing plate portion, guide runner portion and driver plate portion；Each pressing plate portion is located in core pipe lumen, and three pressing plate portion clampings form a clamp hole；Each claw reciprocatingly slides along a corresponding radially-directed hole；Each pressure ring is rotatably arranged on the periphery wall of core pipe, and adjoining is slided in the guide runner portion in a side of each pressure ring and corresponding a set of claw component；Each pressure ring is equipped with and three helicla flutes of three driver plate portions adaptation in corresponding a set of claw component；The driver plate portion of each claw is located in a corresponding helicla flute；Each pressure ring pushes the driver plate portion of a corresponding claw by helicla flute when rotating, and then the pressing plate portion in corresponding a set of claw component is pushed to slide towards core pipe center.Clamp effect of the present invention is preferable.
Description
Technical field
A kind of overhead transmission line electric power clamp fitting technical field of the present invention, and in particular to anti-loosening electric power clamp fitting.
Background technique
In the construction of overhead power line, when cable need to do branch or connect, need to use electric power clamp fitting by two
Root insulated conductor links together.Electric power clamp fitting has simple installation, low cost, safe and reliable non-maintaining feature.Nothing
Leader cable need to be truncated, the insulating layer without peelling off cable can do cable branch, connector is completely insulated, can livewire work, can be with
Make live branch in cable any position；Without the use of termination rack, coupling box；And connector warp resistance, shockproof, waterproof, anticorrosion
Aging；Cable branch is done using insulating power clamp fitting, comprehensive benefit is obvious, and cost performance is better than previous traditional connection side
Formula.
Traditional electric power clamp fitting is mainly by enhancing shell, piercing blade, waterproof silicone grease, high-strength bolt and nut group
At the preferred torque nut of nut, structure is more mature, also obtains relatively broad application.But conventional electric power clamp gold
Tool is there is also shortcoming, and the pressure of clamp relies on the pressure of plain bolt component, and fastness is poor, is easy to loosen.
Summary of the invention
The object of the present invention is to provide a kind of anti-loosening electric power clamp with double shield and preferable anti-loosening effect is golden
Tool.
Realizing the technical solution of the object of the invention is: a kind of anti-loosening electric power clamp fitting, including a core pipe, two pressures
Ring and two casing pressure claw assemblies；Two groups of pilot holes, each group pilot hole and a set of claw component adaptation are equipped on core pipe tube wall side by side；Respectively
Group pilot hole includes three radially-directed holes；Each casing pressure claw assembly includes three claws；Each claw is equipped with pressing plate portion, guide runner
Portion and driver plate portion；Each pressing plate portion is located in core pipe lumen, and three pressing plate portion clampings in each casing pressure claw assembly form one
Clamp hole；Core pipe tube wall is stretched out in the outer end in the guide runner portion of claw, and each driver plate portion is located on the outside of core pipe tube wall；Each claw edge
A corresponding radially-directed hole reciprocatingly slides；Each pressure ring is rotatably arranged on the periphery wall of core pipe, a side of each pressure ring and phase
The guide runner portion in a set of claw component is answered to slide adjoining；Each pressure ring and the end wall of guide runner portion adjoining are equipped with three spiral shells
Spin slot, three driver plate portions adaptation of three helicla flutes respectively and in corresponding a set of claw component；The driver plate portion of each claw
In a corresponding helicla flute；Three radially-directed holes in each group pilot hole are circumferentially evenly distributed on core pipe tube wall along core pipe
On, each radially-directed hole extends radially through core pipe tube wall along core pipe；Each radially-directed hole forms a notch for being located at core pipe edge；
The inner wall in each pressing plate portion is equipped with arc groove；Multiple punctures are equipped in each arc groove；Each claw is one made of casting forming
Body part, each puncture are made in casting forming；Each pressure ring pushes the driver plate portion of a corresponding claw by helicla flute when rotating,
And then the pressing plate portion in corresponding a set of claw component is pushed to slide towards core pipe center.
The present invention has the effect of positive: (1) present invention is clamped on same cable using two casing pressure claw assemblies, and is passed through
Two pressure rings respectively drive corresponding a set of claw component, and the clamp operation of each casing pressure claw assembly is individually carried out, this
Structure has the effect of double shield, even if wherein a set of go wrong in use, there are also another set of its working performances of guarantee.
(2) present invention drives claw to clamp electric power cable by helicla flute, compares with electric power cable is clamped by traditional bolt assembly,
With excellent anti-loosening effect, the reliability of long-term work is effectively ensured.
Detailed description of the invention
Fig. 1 is a kind of schematic perspective view of the first structure of the invention；
Fig. 2 is a kind of front view of electric power clamp fitting shown in Fig. 1；
Fig. 3 is a kind of half section structure diagram of electric power clamp fitting shown in Fig. 1；
Fig. 4 is a kind of explosive view of electric power clamp fitting shown in Fig. 1；
Fig. 5 is that electric power clamp fitting shown in Fig. 1 removes a kind of explosive view after pressure ring；
Fig. 6 is a kind of schematic perspective view of second of structure of the invention；
Fig. 7 is a kind of front view of electric power clamp fitting shown in Fig. 6；
Fig. 8 is a kind of half section structure diagram of electric power clamp fitting shown in Fig. 6；
Fig. 9 is a kind of explosive view of electric power clamp fitting shown in Fig. 6；
Figure 10 is that electric power clamp fitting shown in Fig. 6 removes a kind of explosive view after pressure ring；
Figure 11 is a kind of half section structure diagram of the third structure of the invention.
Specific embodiment
(embodiment 1)
The present embodiment is a kind of anti-loosening electric power clamp fitting, as shown in Fig. 1 to Fig. 5, including core pipe 2, two pressures
Ring 1 and two casing pressure claw assemblies 3.
Core pipe periphery wall is equipped with the annular block machine 21 of evagination；It is equipped with two groups of pilot holes on core pipe tube wall side by side along axial direction,
Each group pilot hole and a set of claw component adaptation；Each group pilot hole includes three radially-directed holes 23, three radially-directed holes
It is circumferentially evenly distributed on core pipe tube wall along core pipe；In the present embodiment, each radially-directed hole extends radially through core pipe tube wall along core pipe.
Each radially-directed hole 23 includes the guiding slide opening 231 and anticreep slide opening 232 axially set gradually along core pipe；Guiding is slided
The edge of core pipe two side ends is arranged in hole, and anticreep slide opening is connected to guiding slide opening；The radial cross-sectional shape in each radially-directed hole
It is T-shaped；Each radially-directed hole 23 forms a notch for being located at core pipe edge.
Each casing pressure claw assembly includes three claws 5；Each claw is equipped with pressing plate portion 51, slides along the guiding that core pipe radially extends
Block portion 52 and the driver plate portion 53 being arranged in guide runner portion；The driver plate portion of each claw is arranged in each guide runner portion
On the protrusive board axially projecting along core pipe, the outboard end of the protrusive board is equipped with chisel teeth 54.
Each pressing plate portion is respectively positioned in core pipe lumen, and core pipe tube wall is stretched out in the outer end in the guide runner portion of each claw, each to be driven
Plate portion is located on the outside of core pipe tube wall；Each guide runner portion 52 includes guide part 521 and anti-delinking part 522, and guide part is located at corresponding one
In the guiding slide opening in a radially-directed hole, anti-delinking part is located in the anticreep slide opening in a corresponding radially-directed hole；Guide part and anti-
The radial cross-sectional shape in de- portion is T-shaped with radially-directed hole adaptation.Each claw is made in the limit in radially-directed hole and guiding
Under, radially reciprocatingly slide along core pipe；The inner wall in each pressing plate portion is equipped with arc groove 55, three claws in each casing pressure claw assembly
Arc groove is enclosed a clamp hole 61 for clamping connection electric power cable.
Two pressure rings 1 are rotatably arranged on the periphery wall of core pipe, and the two sides for annular block machine of living apart；The internal perisporium of each pressure ring
It is the smooth inner wall adjacent with the sliding of core pipe periphery wall；The periphery wall of each pressure ring is equipped with multiple binding grooves 11；The one of each pressure ring
Adjoining is slided with the guide runner portion in corresponding a set of claw component in side and annular block machine sliding adjoining, another side；This reality
It applies in example, end wall each pressure ring and that guide runner portion is adjacent is equipped with three helicla flutes 12, three helicla flutes and corresponding one
Three driver plate portions adaptation in casing pressure claw assembly.
In the present embodiment, each helicla flute includes the anticreep area 121 being connected to pressure ring vestibule 13 and separate pressure ring vestibule
Accommodating area 122；The bottom wall in anticreep area is equipped with multiple wedge-shaped anticreep teeth 123, the chisel teeth adaptation of each wedge shape anticreep tooth and claw；
Accommodating area is smooth sliding slot；The present embodiment in operation, catches on the binding groove on pressure ring using hook type spanner and twists pressure ring.
The driver plate portion of each claw is located in a corresponding helicla flute；Each helicla flute is rotated synchronously with pressure ring, so that phase
A driver plate portion is answered to generate pushing effect to positioned at anticreep area, namely to the driver plate portion from positioned at accommodating area；The present embodiment
In, the independent claw in corresponding a set of claw component of each pressure ring, so that pressing plate portion in each casing pressure claw assembly is towards core pipe center
It is close to each other, to clamp the electric power cable being located in clamp hole.
When the chisel teeth in each pressing plate portion is clamped on the wedge-shaped anticreep tooth in corresponding anticreep area, wedge-shaped anticreep tooth prevents from pressing
Ring reverses, so that the present embodiment has preferable anti-loosening effect.
The present embodiment is equipped with multiple punctures 62 to connect electricity from insulating power cable also in each arc groove；It is specific next
It says, it is each to puncture along core pipe radially protruding.The presence of puncture may not need and carry out peeling processing, Ji Keyou to insulating power cable
Effect connects electricity.In concrete practice, if what is clamped is bare wire, it can be not provided with puncturing.
In the present embodiment, each claw is the integral piece made of casting forming, and each puncture is made in casting forming；?
In concrete practice, puncture can also be used other way and be made；Such as multiple installation card slots are equipped in each arc groove, then logical
The puncture piece cut into is overshooted to be inlaid in corresponding installation card slot；Puncturing piece includes mounting portion and thorn blade, and mounting portion is embedding
In installation card slot, thorn blade then exposes installation card slot and forms puncture.The benefit of this structure be puncture piece can using and
The different material of claw is made, and especially selects and is made to same material used in clamp cable, help to obtain preferable electrical resistance
Energy.
The present embodiment is by cable clamping being arranged at the longitudinal center line of electric power clamp fitting, and gravity centre distribution is more
Rationally, when being used for high-altitude overhead power transmission line road, be conducive to mitigate vibration；In addition, the present embodiment is by having wedge-shaped anticreep
The slope slot of tooth positions each claw, can play the technical effect for preventing falling back, and press from both sides by traditional bolt assembly
Tight electric power cable is compared, especially excellent in anti-loosening effect, and the reliability of long-term work is effectively ensured.
The present embodiment is clamped on same cable using two casing pressure claw assemblies, has the effect of dual fail-safe, even if wherein one
Set goes wrong in use, and there are also another set of its working performances of guarantee.
(embodiment 2)
The present embodiment and embodiment 1 are essentially identical, the difference is that: as shown in Fig. 6 to Figure 10, the present embodiment further includes
Plug 7 in core pipe lumen；It is set on the periphery wall of plug there are three arc clip slot 71, each arc clip slot axially prolongs along core pipe
It stretches, the arc groove setting on the corresponding claw inner wall of each arc clip slot face；Each arc clip slot and corresponding arc groove folder
It closes and forms a clamp hole 61；So the present embodiment can form three clamp holes, it can be used for simultaneously clamping on three cables.
The periphery wall of plug, which is equipped with, positions protrusive board 72, the internal perisporium of core pipe along four supports that core pipe radial direction is protruded
On set there are four positioning runner 24, the outboard end of each support positioning protrusive board is in a corresponding positioning runner, thus core
Stick is located in the lumen of matrix slip pipe.
It also is provided with puncturing in each arc clip slot in the present embodiment.
(embodiment 3)
The present embodiment and embodiment 1 are essentially identical, the difference is that: as shown in Figure 11, the present embodiment further includes voltage
Mutual inductor 8；The voltage transformer includes annular matrix 81 and intelligent control module；In the present embodiment, the adjoining ring of a pressure ring
On the end wall of shape block machine, it is equipped with annular arrangements slot；The voltage transformer is fixed in the resettlement groove of pressure ring；Pressure ring periphery wall
On still be equipped with binding groove.Intelligent control module may include wireless transmit/receive units, and intelligent control module passes through wireless transmit/receive units
The secondary voltage or current signal that annular matrix senses are sent to distance host, to realize accurate long-range no worker monitor；
This structure can make full use of space, be conducive to whole small-sized and integrated.It is mutual that the present embodiment can be used as a high pressure
Sensor uses.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And these
Belong to the obvious changes or variations that connotation of the invention is extended out and still falls within protection scope of the present invention.
Claims (1)
1. a kind of anti-loosening electric power clamp fitting, it is characterised in that: including a core pipe, two pressure rings and two casing pressure claw assemblies；
Two groups of pilot holes, each group pilot hole and a set of claw component adaptation are equipped on core pipe tube wall side by side；Each group pilot hole includes
Three radially-directed holes；
Each casing pressure claw assembly includes three claws；Each claw is equipped with pressing plate portion, guide runner portion and driver plate portion；Each pressing plate portion
In core pipe lumen, three pressing plate portion clampings in each casing pressure claw assembly form a clamp hole；The guide runner portion of claw
Outer end stretch out core pipe tube wall, each driver plate portion is located at core pipe tube wall outside；The driver plate portion of each claw is arranged in each guiding
The outboard end of the protrusive board axially projecting along core pipe in slide section, the protrusive board is equipped with chisel teeth；Each claw is along a corresponding radial direction
Pilot hole reciprocatingly slides；
Core pipe periphery wall is equipped with the annular block machine of evagination；
Two pressure rings are rotatably arranged on the periphery wall of core pipe, and the two sides for annular block machine of living apart；One side of each pressure ring and ring
Adjoining is slided with the guide runner portion in corresponding a set of claw component in the sliding adjoining of shape block machine, another side；Each pressure ring and guiding
The adjacent end wall of slide section is equipped with three helicla flutes, three biographies of three helicla flutes respectively and in corresponding a set of claw component
Movable plate portion adaptation；The driver plate portion of each claw is located in a corresponding helicla flute；Each helicla flute includes being connected to pressure ring vestibule
Anticreep area and the accommodating area of separate pressure ring vestibule；The bottom wall in anticreep area is equipped with multiple wedge-shaped anticreep teeth, each wedge shape anticreep tooth
It is adapted to the chisel teeth of claw；Accommodating area is smooth sliding slot；
Three radially-directed holes in each group pilot hole are circumferentially evenly distributed on core pipe tube wall along core pipe, each radially-directed hole edge
Core pipe extends radially through core pipe tube wall；Each radially-directed hole includes the guiding slide opening and anticreep slide opening axially set gradually along core pipe；
The edge of core pipe two side ends is arranged in guiding slide opening, and anticreep slide opening is connected to guiding slide opening；Each radially-directed hole forms one
Notch in core pipe edge；The inner wall in each pressing plate portion is equipped with arc groove；Multiple punctures are equipped in each arc groove；Each claw is logical
Integral piece made of casting forming is crossed, each puncture is made in casting forming；
Each pressure ring pushes the driver plate portion of a corresponding claw by helicla flute when rotating, and then pushes corresponding a set of claw component
In pressing plate portion towards core pipe center slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610097672.8A CN105633642B (en) | 2016-01-15 | 2016-01-15 | A kind of anti-loosening electric power clamp fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610097672.8A CN105633642B (en) | 2016-01-15 | 2016-01-15 | A kind of anti-loosening electric power clamp fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105633642A CN105633642A (en) | 2016-06-01 |
| CN105633642B true CN105633642B (en) | 2019-03-08 |
Family
ID=56048333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610097672.8A Active CN105633642B (en) | 2016-01-15 | 2016-01-15 | A kind of anti-loosening electric power clamp fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105633642B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084882B (en) * | 2022-07-19 | 2022-11-25 | 江西京九电源科技有限公司 | Electric connection copper terminal component of storage battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2793486Y (en) * | 2005-03-28 | 2006-07-05 | 郑春开 | Clasp cable device |
| CN202151702U (en) * | 2011-07-05 | 2012-02-29 | 湖北三江航天险峰电子信息有限公司 | Tool for centring and clamping large-scale rotational part |
| CN204276947U (en) * | 2014-12-01 | 2015-04-22 | 温岭市深澳机床厂(普通合伙) | Scroll chuck |
-
2016
- 2016-01-15 CN CN201610097672.8A patent/CN105633642B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2793486Y (en) * | 2005-03-28 | 2006-07-05 | 郑春开 | Clasp cable device |
| CN202151702U (en) * | 2011-07-05 | 2012-02-29 | 湖北三江航天险峰电子信息有限公司 | Tool for centring and clamping large-scale rotational part |
| CN204276947U (en) * | 2014-12-01 | 2015-04-22 | 温岭市深澳机床厂(普通合伙) | Scroll chuck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105633642A (en) | 2016-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181213 Address after: 325600 Yuhong Road, Hongqiao Town, Yueqing, Zhejiang Province, No. 14 Applicant after: Gao Yanni Address before: Room 704, 5 Building, Ganglong City Commercial Plaza, No. 556 Changjiang Road, Suzhou High-tech Industrial Development Zone, Jiangsu Province, 215000 Applicant before: Hu Yan |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 241000 No. 108, siban West Road, sibanshan street, Jiujiang District, Wuhu City, Anhui Province Patentee after: Gao Yanni Address before: 325600 No. 14 Yu Yu Road, Hongqiao Town, Zhejiang, Yueqing Patentee before: Gao Yanni |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230426 Address after: 030800 Hu Cun Zhen Han Cun Wu Ma He Qiao Xi, Taigu District, Jinzhong City, Shanxi Province Patentee after: Zhongtian Huatong Power Technology Co.,Ltd. Address before: 241000 No. 108, siban West Road, sibanshan street, Jiujiang District, Wuhu City, Anhui Province Patentee before: Gao Yanni |