CN208094146U - Extra large cable fixing device - Google Patents
Extra large cable fixing device Download PDFInfo
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- CN208094146U CN208094146U CN201820419002.8U CN201820419002U CN208094146U CN 208094146 U CN208094146 U CN 208094146U CN 201820419002 U CN201820419002 U CN 201820419002U CN 208094146 U CN208094146 U CN 208094146U
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- extra large
- large cable
- steel wire
- fixing device
- fastener
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Abstract
The utility model provides a kind of extra large cable fixing device with multi-sealed performance, is mounted on the top of extra large cable protection pipe comprising protection pipe sealing mechanism, steel wire lock tightening mechanism and single-phase sealing mechanism.Protection pipe sealing mechanism integral seal made of fastener locking elastic material, will seal between extra large cable and extra large cable protection pipe；Steel wire lock tightening mechanism generates frictional force by locking the armouring wire of extra large cable, to offset the gravity of extra large cable；Single-phase sealing mechanism is sealed respectively by each of extra large cable is single-phase, is compressed by sealing clamp, is ensured long-term sealing performance.Whole device sealing performance is excellent, easy for installation generally to half structure.
Description
Technical field
The utility model is related to extra large cable device field more particularly to a kind of extra large cable fixing devices with sealing performance.
Background technology
Just greatly developing marine wind electric field engineering in China.The medium that submarine cable is transmitted as maritime power, in wind power plant
In played great function.Extra large cable during use, since its quality is larger, to ensure that it is existing that extra large cable does not occur gliding etc.
As needing practical fixing device to be fixed.Traditional fixing device is by compressing steel wire and with waterproof gasket cement (resin)
Form inside filling device fixes extra large cable.But the restricted lifetime of waterproof gasket cement, the service life of extra large cable is cannot be satisfied, is needed
Want periodic maintenance and check etc., there is potential risk.
Utility model content
In view of above-mentioned condition, the utility model provide a kind of extra large cable fixing device of good seal performance.
A kind of extra large cable positioning device, the extra large cable fixing device include protection pipe sealing mechanism, steel wire lock tightening mechanism and sea
One end of the single-phase sealing mechanism of cable, the protection pipe sealing mechanism is connect with extra large cable protection pipe, the other end and the steel wire lock tightening
One end of mechanism connects, and the other end of the steel wire lock tightening mechanism is connect with the single-phase sealing mechanism of the extra large cable.
Preferably, the protection pipe sealing mechanism includes sealed bolster plate, integral seal, flange and the first fastener, institute
State sealed bolster plate, integral seal and flange in a ring, center passes through for extra large cable, the sealed bolster plate, integral seal and
Flange is to half structure, and the integral seal is arranged between the sealed bolster plate and flange, and first fastener is worn
The flange, integral seal and sealed bolster plate are crossed, the flange, arrangement sealing element are connected and locked with sealed bolster plate, institute
Integral seal is stated to be made of elastic material.
Preferably, the flange includes interconnecting piece and compressed part, and the interconnecting piece is connect with the extra large cable protection pipe, described
Compressed part is connect with the steel wire lock tightening mechanism.
Preferably, the protection pipe sealing mechanism further includes the second fastener and third fastener, second fastener
Across the interconnecting piece and extra large cable protection pipe, interconnecting piece is connected and locked with extra large cable protection pipe, the third fastener setting
In the compressed part, for double of structure of the flange to be locked.
Preferably, the steel wire lock tightening mechanism is used to lock the armouring wire in extra large cable, and the steel wire lock tightening mechanism includes
Steel wire backing plate, locking member and the 4th fastener, the steel wire backing plate and compressing member are the armouring wire setting to half structure
Between the steel wire backing plate and locking member, the 4th fastener passes through the locking member and stretches into the compressed part, will
The armouring wire locks and connects steel wire lock tightening mechanism and compressed part.
Preferably, one end of the steel wire backing plate is equipped with flange, and the one end of the compressed part far from interconnecting piece offers receipts
Tank, the flange are housed in the container, make the steel wire backing plate and the wedge shaped connection of the interconnecting piece.
Preferably, the locking member includes the first tight lock part and the second tight lock part, and the 4th fastener is arranged described
On first tight lock part and pass through the first tight lock part.
Preferably, the steel wire lock tightening mechanism further includes the 5th fastener, and the 5th fastener is arranged described second
On tight lock part, for two of the locking member to be connected and are locked to half part.
Preferably, the single-phase sealing mechanism of the extra large cable includes inner seal liner, outside seal and sealing clamp, the interior sealing
Part is housed in the outside seal, and the outside seal is housed in second tight lock part, and the sealing clamp setting exists
One end of the inner seal liner and outside seal, the inner seal liner and outside seal are made of elastic material.
Preferably, the single-phase sealing mechanism of the extra large cable further includes the 6th fastener, and the 6th fastener passes through described close
Envelope pressing plate simultaneously stretches into second tight lock part, and the inner seal liner and outside seal is made to be locked sealing.
The protection pipe sealing mechanism of extra large cable fixing device provided by the utility model with multi-sealed performance passes through lock
The form of tight seal forms seal protection, and seawater and corrosion-causing bacteria etc. is prevented to enter corrosion device inside device, and bullet
Property sealing element increase the stability of extra large cable, prevent extra large cable from being formed with protection inside pipe wall and collide.The extra large cable list of extra large cable fixing device
Phase sealing mechanism by it is each it is single-phase be sealed respectively, prevent the influence to device such as steam, performance under marine environment remote
It is much better than the sealing to three-phase entirety.All sealing elements are all made of elastic material and are made, by sealing element instead of conventional junction
The waterproof gasket cement of structure meets the service life of extra large cable, and extra large cable fixing device is made to have better seal and stability.Entirely
The various pieces of device are all made of to half structure, easy for installation, easy to operate, are improved work efficiency, and marine behaviour is saved
Make the time.
Description of the drawings
Fig. 1 is the three-dimensional view of extra large cable fixing device provided by the utility model.
Fig. 2 is sectional view of the extra large cable fixing device shown in FIG. 1 along the directions II-II.
Fig. 3 is the explosive view of extra large cable fixing device shown in FIG. 1.
Fig. 4 is the explosive view of the other direction of extra large cable fixing device shown in FIG. 1.
Main element symbol description：
Specific implementation mode：
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
It please refers to Fig.1 and Fig. 2, the utility model provides a kind of extra large cable fixing device with multi-sealed performance.It is described
Extra large cable fixing device includes protection pipe sealing mechanism 1, steel wire lock tightening mechanism 2 and the single-phase sealing mechanism of extra large cable 3.Setting is protected in extra large cable
Extra large cable 7 inside pillar 4 from the device centrally through and be fixed.One end of the protection pipe sealing mechanism 1 and extra large cable
The end of protection pipe 4 connects, and the other end is connect with one end of the steel wire lock tightening mechanism 2.The steel wire lock tightening mechanism 2 it is another
End is connect with the single-phase sealing mechanism of the extra large cable 3.
Protection pipe sealing mechanism 1 is used to connect extra large cable fixing device and extra large cable protection pipe 4, and extra large cable protection pipe 4 is close
Envelope prevents seawater and corrosion-causing bacteria etc. from entering inside extra large cable fixing device.Please refer to Fig. 2 to Fig. 4, protection pipe sealer
Structure 1 includes sealed bolster plate 11, integral seal 12, flange 13, the first fastener 14, the second fastener 15 and third fastener
16.Sealed bolster plate 11 be to half structure, it is removable to be divided into two identical semicircular configurations.Integral seal 12 and flange 13
It is and to half structure, i.e., removable respectively to be divided into two identical parts.Each of integral seal 12 part substantially half
Annular is grouped together into a complete annular.Integral seal 12 is clipped between sealed bolster plate 11 and flange 13, and whole
Body sealing element 12 is made of elastic material.In this embodiment, integral seal 12 is by with high anti-corrosion, high rebound, high abrasion
Polyurethane material is made.The internal diameter of sealed bolster plate 11, integral seal 12 and flange 13 is identical as the diameter of extra large cable 7, is formed
For extra large cable 7 by central passage 71, i.e. the diameter of central passage 71 is equal with the diameter of extra large cable 7.Sealed bolster plate 11 and whole
The outer diameter of body sealing element 12 is identical as the internal diameter of extra large cable protection pipe 4.
Flange 13 includes interconnecting piece 131 and compressed part 132, and the bottom end of interconnecting piece 131 connects with the upper surface of compressed part 132
Connect, and interconnecting piece 131 and compressed part 132 are an integral molding structure, i.e., compressed part 132 by interconnecting piece 131 upper surface centre
Vertical joints 131 protrude out to be formed in an axial direction at position.The end set of extra large cable protection pipe 4 has ring flange 41.Outside interconnecting piece 131
Diameter is identical as the diameter of ring flange 41 of 4 end of extra large cable protection pipe, internal diameter and sealed bolster plate 11 and the integral sealing of interconnecting piece 131
The internal diameter of part 12 is identical, and the semicircular configuration in the form of sheets of interconnecting piece 131.Compressed part 132 is that outer diameter is less than the outer of interconnecting piece 131
Diameter, internal diameter are more than the internal diameter of interconnecting piece 131, and have certain thickness semicircular configuration.Interconnecting piece 131 and compressed part 132 are same
Axis is arranged.First fastener 14 is sequentially passing through interconnecting piece 131, integral seal 12 and sealing close to the position of central passage 71
Interconnecting piece 131, integral seal 12 and sealed bolster plate 11 are connected and lock into an entirety by backing plate 11.It is interconnecting piece 131, whole
Offered on body sealing element 12 and sealed bolster plate 11 for the first fastener 14 by first positioning hole (not shown).
On interconnecting piece 132 close to outer rim position offer for the second fastener 15 by second location hole 151 (such as
Fig. 3), the second fastener 15 passes through the ring flange 41 of the end of interconnecting piece 131 and extra large cable protection pipe 4 by second location hole 151,
Interconnecting piece 131 and ring flange 41 are connected and locked, sealed bolster plate 11 and integral seal 12 are housed in extra large cable protection pipe 4 at this time
It is interior.It is additionally provided with seal washer 17 between ring flange 41 and interconnecting piece 131, contributes to the locking and sealing of the second fastener 15,
Enhance the sealing performance of protection pipe sealing mechanism 1.Be further opened in the compressed part 132 of flange 13 for third fastener 16 by
Third location hole 161.Third fastener 16 locks the compressed part 132 of two flanges 13, to make protection pipe sealing mechanism 1
Symmetrical two parts are merged into an entirety.
Steel wire lock tightening mechanism 2 offsets the gravity of extra large cable 7 using frictional force for locking the armouring wire 5 in extra large cable 7,
The phenomenon that avoiding extra large cable 7 from gliding.Fig. 2, Fig. 3 and Fig. 4 are please referred to, steel wire lock tightening mechanism 2 includes steel wire backing plate 21, locking member
22, the 4th fastener 23 and the 5th fastener 24.Steel wire backing plate 21 and locking member 22 are also to half structure.Steel wire backing plate 21 includes
Flange 211 and backing plate main part 212.The backing plate main part 222 is semicircular configuration, and flange 211 is by backing plate main part 212
One end radially protrudes out to be formed.The top inner side of the compressed part 132 of flange 13 is further opened with container 18, and flange 211 is received
Hold in the container 18, to make the 132 wedge shaped connection of compressed part of steel wire backing plate 21 and flange 13, and steel wire backing plate 21
The end face for being provided with one end of flange 211 and the end face of compressed part 132 are in same plane, and the armouring wire 5 of extra large cable 7 is uniform
It is distributed on steel wire backing plate 21 and the upper transverse plane of compressed part 231.Locking member 22 includes the first tight lock part 221 and the second tight lock part
222, wherein the first tight lock part 221 is outer diameter sheet semicircular configuration identical with 132 outer diameter of compressed part, the second tight lock part 222
For half tubular shape structure.The upper surface of first tight lock part 221 is connect with the lower face of the second tight lock part 22, and the first tight lock part 221
It is an integral molding structure with the second tight lock part 222, i.e., the second tight lock part 222 is vertical in an axial direction by the internal diameter of the first tight lock part 221
First tight lock part 221 protrudes out to be formed.Locking member 22 the first tight lock part 221 lid be located on armouring wire 5 and steel wire backing plate 21,
Compressed part 132 together compresses armouring wire 5.It is offered for the 4th fastener 23 in first tight lock part 221 and compressed part 132
By the 4th location hole 231.4th fastener 23 passes through the first tight lock part 221 by the 4th location hole 231 and is inserted into compression
In portion 132, the first tight lock part 231 is connect with the compressed part 132 of flange 13, armouring wire 5 is folded in 221 He of the first tight lock part
It is locked among compressed part 132, the frictional force of generation can offset the gravity of extra large cable 7.The two sides of second tight lock part 222 are radially
Extend outward to form connecting plate 242, be further opened on connecting plate 242 for the 5th fastener 24 by the 5th location hole
241, the 5th fastener 24 is connected two the second tight lock parts 222 by the 5th location hole 241, to make steel wire lock tightening mechanism 2
Symmetrical two parts merge it is integral.
The extra large cable 7 used in the present embodiment is threephase cable, is enclosed with four conducting wires in cable, respectively three firewires and
A piece zero curve.Each conducting wire in extra large cable 7 is single-phase 6.The single-phase sealing mechanism 3 of extra large cable is used for each single-phase 6 points of extra large cable 7
It does not seal, prevents the influence to device such as steam under marine environment, and sealing performance is far superior to the sealing of three-phase entirety.It please join
Fig. 2 and Fig. 3 are read, the single-phase sealing mechanism 3 of extra large cable includes inner seal liner 31, outside seal 32, sealing clamp 33 and the 6th fastener
34.Inner seal liner 31 substantially be in cuboid, wherein offer for single-phase 6 by through-hole 311.In the present embodiment, interior close
There are four the quantity of sealing 31, will form each single-phase 6 cable and separately seals, and inner seal liner 31 is housed in outside seal 32
In.Outside seal 32 is the cylindrical structure that centre offers square hole, and outside seal 32 is housed in the second lock of locking member 22
In tight portion 222.Projection is there are one boss 25 radially inward for the inner lower edge of locking member 22, the bottom for supporting outside seal 32
End.Inner seal liner 31 and outside seal 32 are made of elastic material, and in the present embodiment, used elastic material is poly- ammonia
Ester material.Sealing clamp 33 is to be made of two pieces of identical sheet semicircular configurations to half structure, and lid is located at inner seal liner
31 and outside seal 32 on, extra large cable 7 single-phase 6 from the center of sealing clamp 33 stretch out.The outer diameter and locking member of sealing clamp 33
The outer diameter of 22 the second tight lock part 222 is identical, and the 6th location hole 341 is offered on sealing clamp 33 and the second tight lock part 222.The
Six locating pieces 34 pass through sealing clamp 33 by the 6th location hole 341 and are inserted into the second tight lock part 222, compress inner seal liner 31
With outside seal 32, and the single-phase sealing mechanism 3 of extra large cable is made closely to be connect with steel wire lock tightening mechanism 2, realizes each list of extra large cable 7
The sealing of phase 6.
Now the installation method of the extra large cable fixing device of the utility model is briefly described：When mounted, first by
One fastener 14 is each passed through sealed bolster plate 11, integral seal 12 and flange 13, forms overall structure, and slightly tighten first
Fastener 14, avoids part from falling off；Above-mentioned overall structure is placed on to the top of extra large cable protection pipe 4 again, passes through the second fastener
15 connecting flanges 13 and extra large cable protection pipe 4；Then it uses third fastener 16 to lock two halves flange 13, and is twisted according to specified torque
Tight first fastener 14 makes 12 crimp of integral seal and abundant with the inside in the outside of extra large cable 7 and extra large cable protection pipe 4
Contact forms sealing, to complete the installation of protection pipe sealing mechanism 1；Steel wire backing plate 21 is assembled on flange 13 again later,
It removes simultaneously and cuts the armouring wire 5 in extra large cable 7 to specific length, and as requested break armouring wire 5 into two with one's hands, make it uniformly
Be distributed on the upper surface of steel wire backing plate 21 and flange 13, then pass through the 4th fastener 23 and lock flange 13 and locking member 22
The first tight lock part 222, armouring wire 5 is compressed, and locked the second tight lock part 222 by the 5th fastener 24, makes two halves
Locking member 22 combines, and completes the assembling of steel wire lock tightening mechanism 2, and extra large cable 7 is offset by locking the frictional force that armouring wire 5 generates
Gravity；Outside seal 32 is then first packed into the inside of the second tight lock part 222 of locking member 22, then each of extra large cable 7 is installed respectively
A single-phase 6 inner seal liner 31, and by 34 lock sealing pressing plate 33 of the 6th fastener, make inner seal liner 31 and outside seal 32
Crimp forms sealing, completes the assembling of single-phase sealing mechanism 3.So far, the extra large cable fixing device of the utility model installs
At.
Compared to previous extra large cable fixing device, the extra large cable provided by the utility model with multi-sealed performance fixes dress
The protection pipe sealing mechanism 1 set forms seal protection by the form of lock sealing part, prevent seawater and corrosion-causing bacteria etc. into
Enter corrosion device inside device, and each sealing element made of elastic material increases the stability of extra large cable 7, prevents extra large cable 7
It is formed and is collided with the inner wall of extra large cable protection pipe 4.The single-phase sealing mechanism of the extra large cable of extra large cable fixing device 3 is by each single-phase 6 points
It is not sealed, the influence to device such as steam under marine environment, performance is prevented to be far superior to the sealing to three-phase entirety.It is all
Sealing element be all made of elastic material and be made, by sealing element instead of the waterproof gasket cement of traditional structure, meet making for extra large cable 7
With the time limit, make extra large cable fixing device that there is better seal and stability.The various pieces of whole device are all made of Ha Fushi
It is easy for installation to half structure, it is easy to operate, it improves work efficiency, saves the marine operating time.
Embodiment of above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although with reference to above preferably real
Mode is applied the utility model is described in detail, it will be understood by those of ordinary skill in the art that, it can be new to this practicality
The technical solution of type is modified or equivalent replacement should not all be detached from the spirit and scope of technical solutions of the utility model.
Claims (10)
1. a kind of extra large cable fixing device, it is characterised in that：The extra large cable fixing device includes protection pipe sealing mechanism, steel wire lock tightening
Mechanism and the single-phase sealing mechanism of extra large cable, one end of the protection pipe sealing mechanism are connect with extra large cable protection pipe, the other end with it is described
One end of steel wire lock tightening mechanism connects, and the other end of the steel wire lock tightening mechanism is connect with the single-phase sealing mechanism of the extra large cable.
2. extra large cable fixing device as described in claim 1, which is characterized in that the protection pipe sealing mechanism includes gasket
The center of plate, integral seal, flange and the first fastener, the sealed bolster plate, integral seal and flange can be for extra large cable
Pass through, the sealed bolster plate, integral seal and flange are to half structure, and the integral seal is arranged in the gasket
Between plate and flange, first fastener passes through the flange, integral seal and sealed bolster plate, by the flange, arrangement
Sealing element is connected and is locked with sealed bolster plate, and the integral seal is made of elastic material.
3. extra large cable fixing device as claimed in claim 2, which is characterized in that the flange include interconnecting piece and with the connection
The compressed part of portion's connection, the interconnecting piece are connect with the extra large cable protection pipe, and the compressed part connects with the steel wire lock tightening mechanism
It connects.
4. extra large cable fixing device as claimed in claim 3, which is characterized in that the protection pipe sealing mechanism further includes second tight
Firmware and third fastener, second fastener pass through the interconnecting piece and extra large cable protection pipe, and interconnecting piece and extra large cable are protected
Pipe is connected and is locked, and the third fastener is arranged in the compressed part, for locking double of structure of the flange.
5. extra large cable fixing device as claimed in claim 3, which is characterized in that the steel wire lock tightening mechanism is for locking in extra large cable
Armouring wire, the steel wire lock tightening mechanism includes steel wire backing plate, locking member and the 4th fastener, the steel wire backing plate and locking
Part is to half structure, and the 4th fastener passes through the locking member and stretches into the compressed part, is used for armouring wire
It locks and connects steel wire lock tightening mechanism and compressed part.
6. extra large cable fixing device as claimed in claim 5, which is characterized in that one end of the steel wire backing plate is equipped with flange, institute
It states the one end of compressed part far from interconnecting piece and offers container, the flange is housed in the container.
7. extra large cable fixing device as claimed in claim 6, which is characterized in that the locking member includes the first tight lock part and second
Tight lock part, the 4th fastener are arranged on first tight lock part and pass through the first tight lock part.
8. extra large cable fixing device as claimed in claim 7, which is characterized in that the steel wire lock tightening mechanism further includes the 5th fastening
Part, the 5th fastener are arranged on second tight lock part, for connecting two of the locking member simultaneously to half part
Locking.
9. extra large cable fixing device as claimed in claim 7, which is characterized in that the single-phase sealing mechanism of extra large cable includes interior sealing
Part, outside seal and sealing clamp, the inner seal liner are housed in the outside seal, and the outside seal is housed in described
In second tight lock part, the sealing clamp is arranged one end in the inner seal liner and outside seal, the inner seal liner and outer
Sealing element is made of elastic material.
10. extra large cable fixing device as claimed in claim 9, which is characterized in that the single-phase sealing mechanism of extra large cable further includes
Six fasteners, the 6th fastener pass through and the sealing clamp and stretch into second tight lock part, make the inner seal liner and
Outside seal is locked sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820419002.8U CN208094146U (en) | 2018-03-26 | 2018-03-26 | Extra large cable fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820419002.8U CN208094146U (en) | 2018-03-26 | 2018-03-26 | Extra large cable fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208094146U true CN208094146U (en) | 2018-11-13 |
Family
ID=64060348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820419002.8U Active CN208094146U (en) | 2018-03-26 | 2018-03-26 | Extra large cable fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208094146U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494658A (en) * | 2018-12-29 | 2019-03-19 | 北京金风科创风电设备有限公司 | Cable fixing device and wind generating set |
| WO2019184101A1 (en) * | 2018-03-26 | 2019-10-03 | 中天海洋系统有限公司 | Submarine cable fixing device |
| CN110380372A (en) * | 2019-07-19 | 2019-10-25 | 中国海洋石油集团有限公司 | A hole multiple spot crossing cabin sealing device and method for a kind of temperature, pressure measurement probe |
-
2018
- 2018-03-26 CN CN201820419002.8U patent/CN208094146U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184101A1 (en) * | 2018-03-26 | 2019-10-03 | 中天海洋系统有限公司 | Submarine cable fixing device |
| CN110364984A (en) * | 2018-03-26 | 2019-10-22 | 中天海洋系统有限公司 | Sea cable fixes device |
| CN110364984B (en) * | 2018-03-26 | 2024-06-07 | 中天海洋系统有限公司 | Submarine cable fixing device |
| CN109494658A (en) * | 2018-12-29 | 2019-03-19 | 北京金风科创风电设备有限公司 | Cable fixing device and wind generating set |
| CN110380372A (en) * | 2019-07-19 | 2019-10-25 | 中国海洋石油集团有限公司 | A hole multiple spot crossing cabin sealing device and method for a kind of temperature, pressure measurement probe |
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Effective date of registration: 20230109 Address after: 226463 Yangkou Port Business Building, Yangkou Port Economic Development Zone, Rudong County, Nantong City, Jiangsu Province Patentee after: ZHONGTIAN TECHNOLOGY MARINE SYSTEMS Co.,Ltd. Address before: Yangkougang business building, yangkougang Economic Development Zone, Rudong County, Nantong City, Jiangsu Province, 226010 Patentee before: ZHONGTIAN TECHNOLOGY MARINE SYSTEMS Co.,Ltd. Patentee before: JIANGSU ZHONGTIAN TECHNOLOGY Co.,Ltd. |