CN107919642A - A kind of device for preventing cable accumulated snow - Google Patents
A kind of device for preventing cable accumulated snow Download PDFInfo
- Publication number
- CN107919642A CN107919642A CN201711303998.2A CN201711303998A CN107919642A CN 107919642 A CN107919642 A CN 107919642A CN 201711303998 A CN201711303998 A CN 201711303998A CN 107919642 A CN107919642 A CN 107919642A
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- windward
- cylinder
- cable
- sliding
- contact
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 230000006698 induction Effects 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention belongs to electric power maintenance field, and in particular to a kind of device for preventing cable accumulated snow.Including be sleeved on cable cylinder windward, two be fixedly mounted on the end cap at cylinder both ends windward, two be arranged on the sliding ring of the circular ring shape at cylinder inner wall both ends, multiple long connecting rods being connected between two sliding rings windward.The present invention makes the accumulated snow on fan blade drop in rotary course, while scrapes the accumulated snow on cable during cylinder windward moves；It can accelerate the rotation of cylinder and translational speed windward when the wind-engaging masterpiece used time, accelerate efficiency of cleaning snow.
Description
Technical field
The invention belongs to electric power maintenance field, and in particular to a kind of device for preventing cable accumulated snow.
Background technology
With increasing for Power Project, so that electric power maintenance work is more and more, particularly winter sleety weather is more
Area, often occur excessively causing the damage of cable even to break due to cable accumulated snow, so that power breakdown, and during heavy snow
It is often obstructed to go to the road of maintenance cable, maintenance work is not carried out in time, and the snow removing beaten used at present
Mode is less efficient.
Application No. 201610751909.x discloses a kind of rotary type electric wire snow protection device, using product on three snow measuring plates
Snow varies in weight and rotates rolling assembly, so that the accumulated snow on snow measuring plate drops.But the scope of this snow defence mode is
The length of whole hollow circular-tube and the bar that removes the snow, in order to reach snow defence purpose, the length of its total length or multistage snow protection device
The sum of can be close to the distance between two electric poles, supporting power and the cost for adding electric pole are higher；And after cable installation
Since dead weight causes electric pole center section, to sinking, cable is in arc line type at this time, can then limit the rotation of rolling assembly at this time for meeting
Gyration, makes the reduction of snow defence effect.
The content of the invention
The technical problems to be solved by the invention are：Prevent cable from accumulating in view of the deficienciess of the prior art, providing one kind
The device of snow.
To realize the purpose of the present invention, it is achieved using following technical scheme：Including be sleeved on cable cylinder windward, two
It is a to be fixedly mounted on the end cap at cylinder both ends windward, two slips for being arranged on the circular ring shape at cylinder inner wall both ends windward
Circle, multiple long connecting rods being connected between two sliding rings；
The cylinder windward includes the columnar cylinder being sleeved on cable；The symmetrical molding of drum outer wall windward has two spiral shapes
Fan blade；The section composition S types of two spiral fan blades；
The inner wall of the cylinder windward both ends form multiple sliding slots, and the sliding slot is circumferentially distributed along cylinder windward；The sliding ring periphery
Form the sliding block identical with the sliding slot quantity；Each sliding block is slidably connected with corresponding sliding slot and the sliding slot limits
Make one end of the slider stroke；The sliding ring inner wall is circumferentially fixedly connected with multiple connecting pins being equally spaced；It is each
Described sliding ring one end circumferentially equidistantly forms multiple first engaging lugs；Between the connecting pin and first engaging lug
The circumferential direction of the sliding ring mutually staggers；Connecting pin on two sliding rings corresponds to two-by-two respectively and corresponding two institutes
State axis of the line parallel to the cylinder windward of connecting pin；
The barrel of the cylinder windward corresponds to and forms multiple mounting holes at each first engaging lug；On each mounting hole
One traveling wheel towards cable is installed；The traveling wheel include being fixedly connected on mounting portion on the mounting hole and with
The rotation section of the mounting portion rotation connection；The rotation section outer wall is towards forming the second connection at first engaging lug
Ear；
Short connecting rod is connected between first engaging lug and second engaging lug；The short connecting rod is connected with described first
It is hinged respectively between ear, second engaging lug；
Long connecting rod is fixedly connected between two connecting pins corresponded；The both ends of the long connecting rod have been respectively fixedly connected with two
A iron block；
The outer wall both ends of the cylinder windward have been separately formed two external screw threads；The end cap includes being fixedly connected on the cylinder windward
The lid of end；The lid inner wall forms the internal thread being threadedly coupled with the external screw thread；The lid inner wall forms
For limiting the annular bezel ring, of the sliding block other end stroke；The bezel ring, intermediary form has multiple scraper plates towards cable；
The outer end of each bezel ring, is provided with the contact jaw of annular；It is fixedly connected between the bezel ring, and the contact jaw more
A extending column；The outer end of the contact jaw is provided with contact-making switch；
The electromagnet of annular is installed in the contact jaw；One end of the electromagnet towards the sliding ring corresponds to each length even
The extension in multiple magnetic fields for being used to extend the electromagnet is fixedly connected with bar；
The inner wall of the cylinder windward is provided with the induction coil for producing induced electromotive force；
The power supply and control board of electrical connection are separately installed with two contact jaws；
The induction coil, each electromagnet, each contact-making switch are electrically connected with control board.
The present invention is socketed on cable when cable is installed, and the traveling wheel each at this time is wound on the periphery of cable；It is described
When sliding ring slides, the rotation section for driving the traveling wheel by short connecting rod rotates；The sliding ring is at one end of stroke, institute
The angle for stating the sagittal plane of traveling wheel and the cylinder windward is -15 ~ -20 °, at this time when cylinder wind-engaging masterpiece used time windward, windward
Cylinder is moved along a direction of cable；When cylinder is moved at electric pole windward, contact-making switch and electricity close to one end of electric pole
Control board is fed back to after line bar touching to be made to be powered with the electromagnet of described contact-making switch the same end, then electromagnet passes through attraction
Iron block makes long connecting rod drive sliding ring to power off electromagnet after sliding into the other end of stroke, and the traveling wheel is met with described at this time
The angle of the sagittal plane of air duct is 15 ~ 20 °, when cylinder rotates windward, while is moved along cable toward opposite direction；It is so past
Multiple, cylinder is subject to wind-force to be moved back and forth when acting between two electric poles windward.
The accumulated snow on the unnecessary fan blade convex surface of the accumulated snow of the concave surface of fan blade when snowing, make windward cylinder rotate and move, rotating
During the accumulated snow on fan blade is dropped, while the accumulated snow on cable scraped during cylinder windward moves；When by wind-force
It can accelerate the rotation of cylinder and translational speed windward during effect, accelerate efficiency of cleaning snow.
Since the present invention can move on cable, the scope of snow defence or snow removing is not limited only to the length of cylinder windward；And
And the distance between electric pole or electric wire tower are longer, the radius of curvature for the arc that cable is bent to form by dead weight is larger, because
This, cylinder is influenced to ignore be subject to cable bend windward.
Brief description of the drawings
Fig. 1 is the decomposition texture schematic diagram of the present invention.
Fig. 2 is the structure diagram of the present invention.
Fig. 3 is the structure diagram of cylinder windward.
Fig. 4 is the structure diagram of end cap.
Fig. 5 is the structure diagram of sliding ring.
Fig. 6 is the structure diagram of traveling wheel.
Fig. 7 is the structure diagram of end cap in embodiment 2.
1st, cylinder windward；11st, cylinder；111st, external screw thread；112nd, mounting hole；113rd, sliding slot；12nd, fan blade；2nd, end cap；21st, cover
Body；211st, internal thread；212nd, bezel ring,；213rd, scraper plate；22nd, contact jaw；221st, contact-making switch；23rd, extending column；24th, electromagnet；
241st, extension；25th, contact disc；26th, spring；3rd, sliding ring；31st, sliding block；32nd, connecting pin；33rd, the first engaging lug；4th, walk
Wheel；41st, mounting portion；42nd, rotation section；421st, the second engaging lug；5th, induction coil；6th, long connecting rod；61st, iron block；7th, short connecting rod；8、
Linear motor.
Embodiment
Embodiment 1
According to Fig. 1 to Fig. 6, the present embodiment is a kind of device for preventing cable accumulated snow, including the fixed peace of 1, two, cylinder windward
End cap 2, two mounted in the both ends of cylinder windward is arranged on the sliding ring 3 of the circular ring shape at cylinder inner wall both ends windward, multiple
The long connecting rod 6 being connected between two sliding rings.
The cylinder windward includes the columnar cylinder 11 being sleeved on cable；The symmetrical molding of drum outer wall windward has two
Spiral fan blade 12；The section composition S types of two spiral fan blades（The radial section of cylinder windward described in）；Hung down by S types
Straight wind-driven generator understands that the cylinder windward is under wind-force effect, and the power suffered by concave surface is more than the power suffered by convex surface, so that in wind
The lower cylinder windward of power effect can be rotated toward a direction all the time.
The inner wall of the cylinder windward both ends form multiple sliding slots 113, and the sliding slot is circumferentially distributed along cylinder windward；The slip
Circle periphery forms the sliding block 31 identical with the sliding slot quantity；Each sliding block is slidably connected with corresponding sliding slot and institute
State one end that sliding slot limits the slider stroke；The sliding ring inner wall is circumferentially fixedly connected with multiple connections being equally spaced
Pin 32；Each described sliding ring one end circumferentially equidistantly forms multiple first engaging lugs 33；The connecting pin and described first
Circumferential direction between engaging lug in the sliding ring mutually staggers；Connecting pin on two sliding rings it is corresponding two-by-two respectively and
Axis of the line of corresponding two connecting pins parallel to the cylinder windward.
The barrel of the cylinder windward corresponds to and forms multiple mounting holes 112 at each first engaging lug；It is each described
One traveling wheel 4 towards cable is installed on mounting hole；The traveling wheel includes the peace being fixedly connected on the mounting hole
Dress portion 41 and the rotation section 42 with mounting portion rotation connection；The rotation section outer wall towards at first engaging lug into
Type has the second engaging lug 421.
Short connecting rod 7 is connected between first engaging lug and second engaging lug；The short connecting rod and described first
It is hinged respectively between engaging lug, second engaging lug.
Long connecting rod 6 is fixedly connected between two connecting pins corresponded；The both ends of the long connecting rod are fixed respectively to be connected
It is connected to two iron blocks 61.
The outer wall both ends of the cylinder windward have been separately formed two external screw threads 111；The end cap includes being fixedly connected on institute
State the lid 21 of cylinder end windward；The lid inner wall forms the internal thread 211 being threadedly coupled with the external screw thread；It is described to meet
When air duct rotates, the external screw thread is mutually screwed with the internal thread；The lid inner wall is formed for limiting the sliding block
The annular bezel ring, 212 of other end stroke；The bezel ring, intermediary form has multiple scraper plates 213 towards cable；The scraper plate with
There are gap between cable.When the cylinder windward rotates, the accumulated snow on cable is scraped by the scraper plate.
The outer end of each bezel ring, is provided with the contact jaw 22 of annular；It is fixed between the bezel ring, and the contact jaw to connect
It is connected to multiple extending columns 23；The outer end of the contact jaw is provided with contact-making switch 221.
The electromagnet 24 of annular is installed in the contact jaw；The electromagnet corresponds to each towards one end of the sliding ring
The extension 241 in multiple magnetic fields for being used to extend the electromagnet is fixedly connected with a long connecting rod.When the electromagnet is powered
When, the iron block on the long connecting rod is attracted by the electromagnet, the sliding ring is slided towards the electromagnet direction.
The inner wall of the cylinder windward is provided with the induction coil 5 for producing induced electromotive force；The induction coil winding
On the iron core of annular.
The power supply and control board of electrical connection are separately installed with two contact jaws.
The induction coil, each electromagnet, each contact-making switch are electrically connected with control board.Pass through control
The induced electromotive force that circuit board processed produces the induction coil is to power source charges.
The present invention is socketed on cable when cable is installed, and the traveling wheel each at this time is wound on the periphery of cable；It is described
When sliding ring slides, the rotation section for driving the traveling wheel by short connecting rod rotates；The sliding ring is at one end of stroke, institute
The angle for stating the sagittal plane of traveling wheel and the cylinder windward is -15 ~ -20 °, at this time when cylinder wind-engaging masterpiece used time windward, windward
Cylinder is moved along a direction of cable；When cylinder is moved at electric pole windward, contact-making switch and electricity close to one end of electric pole
Control board is fed back to after line bar touching to be made to be powered with the electromagnet of described contact-making switch the same end, then electromagnet passes through attraction
Iron block makes long connecting rod drive sliding ring to power off electromagnet after sliding into the other end of stroke, and the traveling wheel is met with described at this time
The angle of the sagittal plane of air duct is 15 ~ 20 °, when cylinder rotates windward, while is moved along cable toward opposite direction；It is so past
Multiple, cylinder is subject to wind-force to be moved back and forth when acting between two electric poles windward.
The accumulated snow on the unnecessary fan blade convex surface of the accumulated snow of the concave surface of fan blade when snowing, make windward cylinder rotate and move, rotating
During the accumulated snow on fan blade is dropped, while the accumulated snow on cable scraped during cylinder windward moves；When by wind-force
It can accelerate the rotation of cylinder and translational speed windward during effect, accelerate efficiency of cleaning snow.
Since the present invention can move on cable, the scope of snow defence or snow removing is not limited only to the length of cylinder windward；And
And the distance between electric pole or electric wire tower are longer, the radius of curvature for the arc that cable is bent to form by dead weight is larger, because
This, cylinder is influenced to ignore be subject to cable bend windward.
Embodiment 2
With reference to shown in Fig. 7, the present embodiment and embodiment 1 difference lies in：The outer end of the contact jaw be mounted equidistant it is multiple simultaneously
Join the contact-making switch 221 set；The outer end of the contact jaw is provided with the contact disc 25 of annular；The contact jaw is contacted with described
Multiple springs 26 are fixedly connected between disk.
By setting multiple contact-making switches, when the contact disc touches barrier, contact disc extruding contact-making switch makes
The linear motor work, so as to change the moving direction of the cylinder windward.
Contact-making switch is triggered indirectly by setting contact disc, is avoided due to can not effectively be touched under single contact-making switch
To barrier, or due to the protrusion of contact-making switch make windward cylinder can not continue rotating situation and occur.
Embodiment 3
The present embodiment makes following improvement on the basis of embodiment 1 or embodiment 2：Multiple hang down is fixedly connected with every section of cable
Directly it is more than the contact-making switch to the distance of cable in the position-arresting disk of cable, the radius of the position-arresting disk.To facilitate installation, institute
State position-arresting disk and be divided into two halfbodies and be fixedly connected on cable.
The present invention is separately positioned on each section of cable being separated into by the position-arresting disk, and the contact-making switch on the end cap touches
When encountering the position-arresting disk, the moving direction of the cylinder windward changes；The present invention back and forth moves in each segmentation of each cable
Dynamic snow removing, adds the efficiency of cleaning snow on cable.
Claims (3)
- A kind of 1. device for preventing cable accumulated snow, it is characterised in that：Including be sleeved on cable cylinder windward, two be fixedly mounted on The end cap at the both ends of cylinder windward, two be arranged on the sliding ring of the circular ring shape at cylinder inner wall both ends windward, multiple be connected to Long connecting rod between two sliding rings；The cylinder windward includes the columnar cylinder being sleeved on cable；The symmetrical molding of drum outer wall windward has two spiral shapes Fan blade；The section composition S types of two spiral fan blades；The inner wall of the cylinder windward both ends form multiple sliding slots, and the sliding slot is circumferentially distributed along cylinder windward；The sliding ring periphery Form the sliding block identical with the sliding slot quantity；Each sliding block is slidably connected with corresponding sliding slot and the sliding slot limits Make one end of the slider stroke；The sliding ring inner wall is circumferentially fixedly connected with multiple connecting pins being equally spaced；It is each Described sliding ring one end circumferentially equidistantly forms multiple first engaging lugs；Between the connecting pin and first engaging lug The circumferential direction of the sliding ring mutually staggers；Connecting pin on two sliding rings corresponds to two-by-two respectively and corresponding two institutes State axis of the line parallel to the cylinder windward of connecting pin；The barrel of the cylinder windward corresponds to and forms multiple mounting holes at each first engaging lug；On each mounting hole One traveling wheel towards cable is installed；The traveling wheel include being fixedly connected on mounting portion on the mounting hole and with The rotation section of the mounting portion rotation connection；The rotation section outer wall is towards forming the second connection at first engaging lug Ear；Short connecting rod is connected between first engaging lug and second engaging lug；The short connecting rod is connected with described first It is hinged respectively between ear, second engaging lug；Long connecting rod is fixedly connected between two connecting pins corresponded；The both ends of the long connecting rod have been respectively fixedly connected with two A iron block；The outer wall both ends of the cylinder windward have been separately formed two external screw threads；The end cap includes being fixedly connected on the cylinder windward The lid of end；The lid inner wall forms the internal thread being threadedly coupled with the external screw thread；The lid inner wall forms For limiting the annular bezel ring, of the sliding block other end stroke；The bezel ring, intermediary form has multiple scraper plates towards cable；The outer end of each bezel ring, is provided with the contact jaw of annular；It is fixedly connected between the bezel ring, and the contact jaw more A extending column；The outer end of the contact jaw is provided with contact-making switch；The electromagnet of annular is installed in the contact jaw；One end of the electromagnet towards the sliding ring corresponds to each length even The extension in multiple magnetic fields for being used to extend the electromagnet is fixedly connected with bar；The inner wall of the cylinder windward is provided with the induction coil for producing induced electromotive force；The power supply and control board of electrical connection are separately installed with two contact jaws；The induction coil, each electromagnet, each contact-making switch are electrically connected with control board.
- A kind of 2. device for preventing cable accumulated snow as claimed in claim 1, it is characterised in that：The outer end of the contact jaw is equidistant Multiple contact-making switches being arranged in parallel are installed；The outer end of the contact jaw is provided with the contact disc of annular；The contact jaw with Multiple springs are fixedly connected between the contact disc.
- A kind of 3. device for preventing cable accumulated snow as claimed in claim 1, it is characterised in that：It is fixedly connected with every section of cable Multiple position-arresting disks perpendicular to cable, the radius of the position-arresting disk are more than the contact-making switch to the distance of cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711303998.2A CN107919642B (en) | 2017-12-11 | 2017-12-11 | device for preventing cable snow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711303998.2A CN107919642B (en) | 2017-12-11 | 2017-12-11 | device for preventing cable snow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107919642A true CN107919642A (en) | 2018-04-17 |
| CN107919642B CN107919642B (en) | 2019-12-06 |
Family
ID=61893089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711303998.2A Active CN107919642B (en) | 2017-12-11 | 2017-12-11 | device for preventing cable snow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107919642B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620363A (en) * | 2019-09-25 | 2019-12-27 | 国网山东省电力公司商河县供电公司 | Deicing mechanism of power transmission line deicing robot |
| CN110797824A (en) * | 2019-12-09 | 2020-02-14 | 刘远远 | Snow removing device for high-altitude power line |
| CN113078602A (en) * | 2021-05-15 | 2021-07-06 | 牛世强 | Cable deicing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203932928U (en) * | 2014-07-09 | 2014-11-05 | 山东科技大学 | Self-propelled cable cleans ice-breaking vehicle |
| CN205583609U (en) * | 2016-05-06 | 2016-09-14 | 国网山东省电力公司青岛市黄岛区供电公司 | A wind -force actuating mechanism for high -voltage line removes ice and snow |
| CN106058778A (en) * | 2016-08-10 | 2016-10-26 | 晋江市东亨工业设计有限公司 | Automatic deicer |
| CN106159864A (en) * | 2016-08-29 | 2016-11-23 | 国网山东省电力公司商河县供电公司 | Rotary type electric wire snow protection device |
-
2017
- 2017-12-11 CN CN201711303998.2A patent/CN107919642B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203932928U (en) * | 2014-07-09 | 2014-11-05 | 山东科技大学 | Self-propelled cable cleans ice-breaking vehicle |
| CN205583609U (en) * | 2016-05-06 | 2016-09-14 | 国网山东省电力公司青岛市黄岛区供电公司 | A wind -force actuating mechanism for high -voltage line removes ice and snow |
| CN106058778A (en) * | 2016-08-10 | 2016-10-26 | 晋江市东亨工业设计有限公司 | Automatic deicer |
| CN106159864A (en) * | 2016-08-29 | 2016-11-23 | 国网山东省电力公司商河县供电公司 | Rotary type electric wire snow protection device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620363A (en) * | 2019-09-25 | 2019-12-27 | 国网山东省电力公司商河县供电公司 | Deicing mechanism of power transmission line deicing robot |
| CN110797824A (en) * | 2019-12-09 | 2020-02-14 | 刘远远 | Snow removing device for high-altitude power line |
| CN113078602A (en) * | 2021-05-15 | 2021-07-06 | 牛世强 | Cable deicing device |
| CN113078602B (en) * | 2021-05-15 | 2022-09-06 | 北京必成达电缆附件有限公司 | Cable deicing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107919642B (en) | 2019-12-06 |
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Effective date of registration: 20191114 Address after: 318050 No.62, zone 1, daoguanqian village, Lubei street, Luqiao District, Taizhou City, Zhejiang Province Applicant after: Yu Yanming Address before: Hangzhou City, Zhejiang province 310052 Binjiang District Dongguan Road No. 655 Building 1 unit 5 Manchester City Jinsheng room 1102 Applicant before: Huang Wenjia |
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Effective date of registration: 20230726 Address after: 311400 No. 20, Yuyang Road, Lushan Street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: HANGZHOU SOUTHEAST JITONG NETWORK CO.,LTD. Address before: 318050 No. 62, zone 1, daoguanqian village, Lubei street, Luqiao District, Taizhou City, Zhejiang Province Patentee before: Yu Yanming |
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Address after: 311400 No. 20, Yuyang Road, Lushan Street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Southeast Jitong Technology Co.,Ltd. Country or region after: China Address before: 311400 No. 20, Yuyang Road, Lushan Street, Fuyang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU SOUTHEAST JITONG NETWORK CO.,LTD. Country or region before: China |