CN103569326B - A kind of deepwater winch - Google Patents
A kind of deepwater winch Download PDFInfo
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- CN103569326B CN103569326B CN201310527195.0A CN201310527195A CN103569326B CN 103569326 B CN103569326 B CN 103569326B CN 201310527195 A CN201310527195 A CN 201310527195A CN 103569326 B CN103569326 B CN 103569326B
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Abstract
The invention discloses a kind of deepwater winch, comprise main drum, main drum comprises the first cylinder, first cylinder both sides are welded with step-like contiguous block, contiguous block and the first cylinder junction are provided with the first groove, on contiguous block, diameter larger part is provided with and somely stretches out block, contiguous block diameter smaller part is arranged with the first annular slab, first annular slab side leans contiguous block diameter larger part, stretching out outside block of side is connected with annular ring, annular ring arranged outside has brake band, brake band one end is rotatably connected on braking bracket, the other end is rotatably connected to stretching structure, stretching structure lower end and pipe link are rotationally connected, pipe link and braking bracket are rotationally connected, braking bracket is provided with the first hydraulic actuating cylinder, the piston rod end of the first hydraulic actuating cylinder through braking bracket and pipe link hinged, even this makes brake band also can be made to be in tight state of stopping when power-off, prevent because the situation brake bands such as power-off do not stop tightly, main drum freely being rotated and cause danger.
Description
Technical field
The present invention relates to marine machinery technical field, specifically a kind of deepwater winch, is a kind of equipment be arranged on for trawlnet on fishing boat.
Background technology
Deepwater winch is mounted in the device for use in fishing trawl in trawlboat, and existing deepwater winch generally comprises reel, HM Hydraulic Motor, brake system and rope guide.Traditional deepwater winch is all generally one, and machine transports to go on board and assembles integral installation well after, but due to deepwater winch entirety comparatively greatly, it is comparatively inconvenient to install.
Traditional reel comprises a cylindrical tube, cylindrical tube both sides are welded with the first annular plate, because the first annular plate is larger, with produce a large amount of heats during barrel soldering the first annular plate can be made to have larger deformation, affect working accuracy, certain impact is produced on later stage reel winding.
The operation of existing brake system generally all relies on manpower to strain and discharges cylinder.There is following problem in this structure: brakes by manual operation, the braking to cylinder is realized by the speed of artificial hand screw rod and the strength of workman, the size of workman's strength and the speed of hand screw rod can not meet the working condition requirement of large load ship machinery usually, and workman's danger when hand screw rod is very large, easily causes safety misadventure.In order to improve the braking of safety and the large-scale winch of adaptation, the brake band of a lot of large-scale winch all adopts hydraulic actuating cylinder to drive, generally driven the tension of brake band by the flexible of hydraulic actuating cylinder and unclamped, brake band is need tension at most of conditions, only just unclamp when drum functions, general brake system needs hydraulic actuating cylinder to remain contraction state, and the element in hydraulic circuit is in running order all the time, therefore Hydraulic Elements can be caused shorter for service life, easily cause damage.
The weight of deepwater winch is very large, and traditional winch is all integrative-structure, therefore transports and install suitable inconvenience.
Summary of the invention
The present invention is directed to prior art deficiency, a kind of deepwater winch is provided, the reel production precision of this deepwater winch is higher, the deformation of effective minimizing first annular plate when welding, and this brake structure first hydraulic actuating cylinder is in contraction state all the time at out-of-run situation lower piston rod, even this makes brake band also can be made to be in tight state of stopping when power-off, prevent because the situation brake bands such as power-off do not stop tightly, main drum freely being rotated and cause danger.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: a kind of deepwater winch, comprise main drum, described main drum comprises the first cylinder, described first cylinder both sides are welded with step-like contiguous block, described contiguous block and described first cylinder junction are provided with the first groove, on described contiguous block, diameter larger part is provided with and somely stretches out block, described contiguous block diameter smaller part is arranged with the first annular slab, described first annular slab side leans described contiguous block diameter larger part, described first annular slab inner circle is provided with the second groove near described first cylinder side, described first annular slab and described contiguous block are by being welded and fixed, stretch out described in side outside block and be connected with annular ring, annular ring arranged outside has brake band, described brake band one end is rotatably connected on braking bracket, the other end is rotatably connected to stretching structure, described stretching structure lower end and pipe link are rotationally connected, described pipe link and braking bracket are rotationally connected, described braking bracket is provided with the first hydraulic actuating cylinder, the piston rod end of the first hydraulic actuating cylinder through described braking bracket and described pipe link hinged, the piston rod of described first hydraulic actuating cylinder is provided with the block vertical with piston rod, spring is provided with between bottom described block and described first hydraulic actuating cylinder, described pipe link other end upper surface is a plane, braking bracket above described plane is provided with the first through hole, a fixed block is fixed with above described first through hole, described fixed block is provided with the 3rd screw, the second screw rod is provided with in described 3rd screw.
In technique scheme, preferably, described contiguous block diameter larger part is also provided with the second oil hole, described second oil hole is provided with oiling pipeline for lubricating to the bearing oiling in contiguous block.
In technique scheme, preferably, described second screw rod is provided with runner.
In technique scheme, preferably, described second screw rod above described fixed block is provided with latch segment, described latch segment is provided with the 4th screw passed for described second screw rod, described latch segment is provided with handle.
The present invention compared with prior art, there is following beneficial effect: the present invention's this reel production precision is higher, the deformation of effective minimizing first annular plate when welding, and this brake structure first hydraulic actuating cylinder is in contraction state all the time at out-of-run situation lower piston rod, even this makes brake band also can be made to be in tight state of stopping when power-off, prevent because the situation brake bands such as power-off do not stop tightly, main drum freely being rotated and cause danger.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention integral structure schematic diagram.
Fig. 2 is the first wall stand inner structure schematic diagram.
Fig. 3 is the structural representation of oil level and temperature-detecting device.
Fig. 4 is the right elevation of main drum.
Fig. 5 is that the B-B of Fig. 4 is to cutaway view.
Fig. 6 is the partial enlarged drawing in Fig. 5.
Fig. 7 is the sectional structure schematic diagram of brake structure.
Fig. 8 is the partial enlarged drawing of Fig. 7.
Fig. 9 is the schematic diagram of clutch structure.
Figure 10 is the sectional structure schematic diagram of clutch structure.
Figure 11 is the structural representation of rope guide.
Figure 12 is the structural representation of guide roller.
Figure 13 is the structural representation of the second rotating shaft.
Figure 14 is the structural representation at the second wall stand place.
Figure 15 is the structural representation of chain wheel cover.
Figure 16 is that A-A in Figure 15 is to cutaway view.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail: see Fig. 1 to Figure 16, a kind of deepwater winch, comprise some wall stand 1, first wall stand 11 is provided with four HM Hydraulic Motor 2, big gear wheel a and bearing seat 3, the output shaft of described HM Hydraulic Motor 2 is provided with miniature gears b, described miniature gears b coordinates transmission with described big gear wheel a, described big gear wheel a center is connected with the first rotating shaft 4, described first rotating shaft 4 is through described bearing seat 3, because the very large bearing seat 3 of equipment is also very large very heavy, in order to described bearing seat 3 easy for installation is provided with hanger 31, conveniently add lubricating oil to bearing, described bearing seat 3 is also provided with the first oil hole 32, main drum 41 and loose drum 43 is arranged with outside described first rotating shaft 4, described first wall stand 11 is conveniently installed and comprises base 111 and upper cover 112, described base 111 and upper cover 112 are for removably connecting, described upper cover 112 is provided with porthole 113, lubricating oil is provided with for lubricating to gear transmission in described first wall stand 11, in order to the sidewall controlling the first wall stand 11 described in the oil level of lubricating oil and temperature is provided with oil level and temperature-detecting device 114, be damaged to prevent oil level and temperature-detecting device 114, the first protection baffle ring 115 is arranged with around described oil level and temperature-detecting device 114.
Main drum 41 comprises the first cylinder 411, described first cylinder 411 both sides are welded with step-like contiguous block 412, described contiguous block 412 is provided with the first groove 413 for being welded and fixed with described first cylinder 411 with described first cylinder 411 junction, be provided with in described contiguous block 412 and be connected with bearing (not shown on figure) with described first rotating shaft 4, described contiguous block 412 diameter larger part is also provided with the second oil hole 414, described second oil hole 414 is provided with oiling pipeline for lubricating to the bearing oiling in contiguous block 412, on described contiguous block 412, diameter larger part is provided with and somely stretches out block 416, described contiguous block 412 diameter smaller part is arranged with the first annular slab 417, described first annular slab 417 side leans described contiguous block 412 diameter larger part, described first annular slab 417 inner circle is provided with the second groove 418 near the first cylinder 411 side, described first annular slab 417 and described contiguous block 412 are by being welded and fixed, first groove 413 and the convenient welding of the second groove 418 are set, and make welding more firm, lean at described contiguous block 412 diameter larger part due to side when the first annular slab 417 welds with contiguous block 412 and describedly stretch out block 416, deformation after first annular slab 417 is welded is very little, and locate convenient when welding.Wherein stretch out block 416 described in side and be outside equipped with ratchet 419, described ratchet 419 is other arranges ratchet clamping structure 4110, coordinated by ratchet 419 and ratchet clamping structure 4110, prevent after brake band 51 unclamps, make main drum 41 freely rotate and cause danger, stretch out described in opposite side outside block 416 and be connected with annular ring 4116.Annular ring 4116 arranged outside has brake band 51, described brake band 51 one end is rotatably connected on braking bracket 12, the other end is rotatably connected to stretching structure 52, described stretching structure 52 lower end and a pipe link 55 are rotationally connected, described pipe link 55 is rotationally connected with braking bracket 12, described braking bracket 12 is provided with the first hydraulic actuating cylinder 56, piston rod 561 end of the first hydraulic actuating cylinder 56 is hinged with pipe link 55 through described braking bracket 12, when piston rod 561 upward movement, described brake band 51 is stopped tightly, when piston rod 561 moves downward, described brake band 51 unclamps, because main drum 41 is all in tight state of stopping in the ordinary course of things, the piston rod 561 of described first hydraulic actuating cylinder 56 is provided with the block 562 vertical with piston rod 561, spring 563 is provided with between bottom described block 562 and described first hydraulic actuating cylinder 56, this makes to be in contraction state at the first hydraulic actuating cylinder 56 all the time at out-of-run situation lower piston rod 561, even this makes brake band 51 also can be made to be in tight state of stopping when power-off, prevent because the situation brake bands such as power-off do not stop tightly, main drum 41 freely being rotated and cause danger, described pipe link 55 other end upper surface is a plane, braking bracket 12 above described plane is provided with the first through hole (not shown on figure), a fixed block 57 is fixed with above described first through hole, described fixed block 57 is provided with the 3rd screw 58, the second screw rod 59 is provided with in described 3rd screw 58, described second screw rod 59 moves downward and is unclamped by brake band 51 on top downwards by pipe link 55, this makes just need not be energized when main drum 41 puts rope, also the operation of releasing of brake band 51 can be carried out when power-off, runner 510 is provided with in order to rotate on more laborsaving described second screw rod 59, the second screw rod 59 can be made to fluff because main drum 41 rotates reasons such as producing vibration, therefore described second screw rod 59 above described fixed block 57 is provided with latch segment 511, described latch segment 511 is provided with the 4th screw 512 passed for described second screw rod 59, described latch segment 511 is provided with handle 513, when use operates, after the second screw rod 59 moves downward, pipe link 55 is pushed up tight brake band 51 of stopping downwards, then latch segment 511 is rotated to and be adjacent to fixed block 57, make the second screw rod 59 and fixed block 57, very large static friction is produced between second screw rod 59 and latch segment 511, to prevent when brake band 51 is stopped tight because of the second screw rod 59 upward movement thus brake band 51 is unclamped.
Fixed link 15 is connected with between described some wall stand 1, in order to the outside preventing the hawser of main drum 41 when rotating on main drum 41 from producing the first annular slab 417, described fixed link 15 is provided with some catch 151, described catch 151 and described first annular slab 417 are in same plane, space distance between described catch 151 and described first annular slab 417 is less than 2cm, there are in the present embodiment two fixed links 15, every root fixed link 15 is provided with two pieces of described catch 151.
Described first rotating shaft 4 adopts clutch structure 42 transmission with described main drum 41, in the present embodiment, described clutch structure 42 comprises sliding part 421, described sliding part 421 center has polygonal hole 422, described first rotating shaft 4 is through described polygonal hole 422, and described first rotating shaft 4 is identical with the cross sectional shape of described cross section, sliding part 421 cooperation place and described polygonal hole 422, described sliding part 421 is provided with some first projections 423 near main drum 41 side, main drum 41 is provided with some second projections 424, described first protruding 423 to coordinate with described second projection 424 and forms snap-in structure, by the transmission of power that can realize between the first rotating shaft 4 and main drum 41 that moves around of sliding part 421, described sliding part 421 lateral surface is provided with along side continuous print annular groove 425, driving lever 426 is provided with in described annular groove 425, second wall stand 13 is provided with support platform 131, described driving lever 426 is hinged with described support platform 131, described driving lever 426 is provided with the second through hole, described support platform 131 is provided with third through-hole, can be fixed by set pin 428 between described second through hole and described third through-hole, described support platform 121 is also provided with the second hydraulic actuating cylinder 429, described second hydraulic actuating cylinder 429 one end and support platform 131 are rotationally connected, the other end and described driving lever 426 are rotationally connected, traditional clutch structure 42 is generally stirred by manpower, and the clutch of clutch structure 42 in the present embodiment, can be realized by the second hydraulic actuating cylinder 429, make to operate convenient, realize Automated condtrol.
Be set in the first rotating shaft 4 on also have loose drum 43 except main drum 41, loose drum 43 is mainly used as hoisting crane and is used, described loose drum 43 is also provided with the clutch structure identical with main drum 41 and brake structure, described loose drum 43 comprises the second cylinder 431 both sides and is all welded with the second annular slab 432, annular retaining ring 433 is provided with outside two pieces of described second annular slabs 432, space between described annular retaining ring 433 and described second annular slab 432 is less than 2cm, arrange annular retaining ring 433 spread for preventing hawser to the outside of the second annular slab 432 and cause the accident, bar 434 is adopted to connect between two annular retaining rings 433, adopting bar 434 to be connected and fixed by annular retaining ring 433 makes the intensity of annular retaining ring 433 larger, more firm, in the present embodiment, described annular retaining ring 433 two ends are all rotationally connected with the extension 141 in the 3rd wall stand 14.
Traditional deepwater winch is all integrative-structure, and in the present embodiment, rope guide 6 and the first wall stand 11 and the second wall stand 13 are Split type structure, described rope guide 6 and adopting between the first wall stand 11 and the second wall stand 13 removably connects, rope guide 6 described in the present embodiment and the first wall stand 11 and the second wall stand 13 with bolts, adopt convenient when deepwater winch is installed and transport in this way, reduce the weight of single carrying.
Described rope guide 6 comprises the support 61 at two ends, two described supports 61 are fixedly installed some pilot bars 62, reverse-flighted screw 63 is also provided with between two described supports 61, described pilot bar 62 and reverse-flighted screw 63 are provided with track adjusting wheel 64, described reverse-flighted screw 63 is parallel with described pilot bar 62, described track adjusting wheel 64 is made up of framework 641 and the second rotating shaft 642 be arranged in described framework 641 and the 3rd rotating shaft 643, described framework 641 and described second rotating shaft 642, described 3rd rotating shaft 643 surrounds three-way rope hole 644, when rope closing, hawser is through three-way rope hole 644, moving back and forth hawser proper alignment on main drum 41 by track adjusting wheel 64, and the volume of deepwater winch is very large, the weight of track adjusting wheel 64 is also very large, conveniently rope is taken out three-way rope hole, bottom and the framework 641 of the second rotating shaft 642 of track adjusting wheel 64 are rotationally connected, upper end and framework 641 removably connect, at needs, rope taken out like this or the second rotating shaft 642 can be fallen down when putting into three-way rope hole 644, then rope put into or take out three-way rope hole 644, forward the second rotating shaft 644 to original position again to fix, so just rope can easily be put into three-way rope hole 644 or take out three-way rope hole 644, described second rotating shaft 642 lower end and described framework 641 are rotationally connected, second rotating shaft 642 upper end and described framework 641 removably connect, described track adjusting wheel 64 also includes wire twisting machine 645, described wire twisting machine 645 is provided with rope, described rope one end is detachably connected on described second rotating shaft 642 upper end, the other end is set around on described wire twisting machine 645.Traditional demountable structure is generally rope is fixed with a bolt, removably connect with the screw in the second rotating shaft 642, such dismounting and installing also comparatively bothers, in the present embodiment, described second rotating shaft 642 upper end is provided with suspension ring 646, described cable end is provided with drag hook 647, like this after the second rotating shaft 642 is fallen down, put into or take out hawser and become convenient, track adjusting wheel 64 arranges wire twisting machine 645, make can being controlled by the rotation of wire twisting machine 645 of the second rotating shaft 642, make rising of the second rotating shaft 642 safer, and a workman just can pour line operate into rising of the second rotating shaft 642, save human cost.
In order to prevent track adjusting wheel 64 from blocking, in described framework 641, pilot bar 62 and reverse-flighted screw 63 are also provided with the 3rd oil hole 648 through place, and in order to prevent the 3rd oil hole 648 to be damaged, described 3rd oil hole 648 side is arranged with the second protection baffle ring 649.
Because the second rotating shaft 642 weight is very large, just in case fall down to be pressed onto people danger close, therefore described framework 641 is provided with groove 6411 with described second rotating shaft 642 upper-end contact place, described second rotating shaft 641 upper end is provided with elastic component 6412, described elastic component 6412 is connected with moving mass 6413, described moving mass 6413 coordinates with described groove 6411, when described moving mass 6413 is positioned at described groove 6411, the elastic force direction that described moving mass 6413 is subject to elastic component 6412 is downward, in the present embodiment, described elastic component 6412 is spring, described elastic component 6412 is arranged at above described moving mass 6413.Conveniently rising of the second rotating shaft 642 falls to operate, and described suspension ring 646 are arranged at above described moving mass 6413, rotates wire twisting machine 645 like this and moving mass 6413 can be pulled out groove 6411, facilitate the second rotating shaft 642 to fall down when the second rotating shaft 642 needs to fall down.
Generally all adopt Chain conveyer to carry out transmission of power between rope guide 6 and the first rotating shaft 4, and traditional sprocket wheel 65 is generally be fixed on main drum 41, when all needing main drum 41 to rotate, rope guide 6 just can be provided power at every turn, this mainly matches with mode of operation when main drum 41 rope closing, and when putting rope, general orientation wheel 64 will fall back on the most limit of reverse-flighted screw 63, because the speed of putting rope very soon and also can not make hawser turmoil, so do not need by three-way rope hole 644.And track adjusting wheel 64 is fallen back on this action need main drum 41 on the most limit of reverse-flighted screw 63 and rotate together, this certain trouble that operates.Be fixed in described first rotating shaft 4 by sprocket wheel 65 by key now, such main drum 41 does not rotate and track adjusting wheel 64 also can be made to move, make main drum 41 put rope before operation become convenient.
Because the power between the first rotating shaft 4 and reverse-flighted screw 63 is by chain gear, and foreign matter damage between chain and sprocket wheel 65, may be snapped in, also the health of workman may be clamped, therefore described chain and sprocket wheel 65 arranged outside have chain wheel cover 66, described chain wheel cover 66 is generally by two pieces of symmetrical half chain wheel cover 66 split welding when processing, and then be fixed in the second wall stand 13, and it is very thin at the edge that chain wheel cover 66 welds, be difficult to chain wheel cover 66 to aim at and weld, generally need many people compounding practice.In the present embodiment, the described chain wheel cover 66 of the half cooperatively interacted is provided with chute 661, described in two, chute 661 cooperatively interacts, inserted sheet 662 is inserted with in described chute 661, wait so when mounted and the chain wheel cover 66 of two half is aimed at, then in chute 661, insert described inserted sheet 662 can ensure that the laminating described in two half between chain wheel cover 66 is smooth, and the two ends of chain wheel cover 66 are provided with flange 663 described in two half, described flange 663 is provided with fourth hole, be bolted between described flange 663, also bolt is adopted to fix between described inserted sheet 662 and described chain wheel cover 66.
Claims (4)
1. a deepwater winch, comprise main drum (41), it is characterized in that: described main drum (41) comprises the first cylinder (411), described first cylinder (411) both sides are welded with step-like contiguous block (412), described contiguous block (412) and described first cylinder (411) junction are provided with the first groove (413), the upper diameter larger part of described contiguous block (412) is provided with and somely stretches out block (416), described contiguous block (412) diameter smaller part is arranged with the first annular slab (417), described first annular slab (417) side leans described contiguous block (412) diameter larger part, described first annular slab (417) inner circle is provided with the second groove (418) near described first cylinder (411) side, described first annular slab (417) and described contiguous block (412) are by being welded and fixed, stretch out block (416) outside described in side and be connected with annular ring (4116), annular ring (4116) arranged outside has brake band (51), described brake band (51) one end is rotatably connected on braking bracket (12), the other end is rotatably connected to stretching structure (52), described stretching structure (52) lower end and pipe link (55) are rotationally connected, described pipe link (55) and braking bracket (12) are rotationally connected, described braking bracket (12) is provided with the first hydraulic actuating cylinder (56), piston rod (561) end of the first hydraulic actuating cylinder (56) is hinged through described braking bracket (12) and described pipe link (55), the piston rod (561) of described first hydraulic actuating cylinder (56) is provided with the block (562) vertical with piston rod (561), spring (563) is provided with between described block (562) and described first hydraulic actuating cylinder (56) bottom, described pipe link (55) other end upper surface is a plane, braking bracket (12) above described plane is provided with the first through hole, a fixed block (57) is fixed with above described first through hole, described fixed block (57) is provided with the 3rd screw (58), the second screw rod (59) is provided with in described 3rd screw (58).
2. a kind of deepwater winch as claimed in claim 1: it is characterized in that: described contiguous block (412) diameter larger part is also provided with the second oil hole (414), described second oil hole (414) is provided with oiling pipeline for lubricating to the bearing oiling in contiguous block (412).
3. a kind of deepwater winch as claimed in claim 1: it is characterized in that: described second screw rod (59) is provided with runner (510).
4. a kind of deepwater winch as claimed in claim 1: it is characterized in that: described second screw rod (59) of described fixed block (57) top is provided with latch segment (511), described latch segment (511) is provided with the 4th screw (512) passed for described second screw rod (59), described latch segment (511) is provided with handle (513).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310527195.0A CN103569326B (en) | 2013-10-31 | 2013-10-31 | A kind of deepwater winch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310527195.0A CN103569326B (en) | 2013-10-31 | 2013-10-31 | A kind of deepwater winch |
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| CN103569326A CN103569326A (en) | 2014-02-12 |
| CN103569326B true CN103569326B (en) | 2015-12-23 |
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| CN106629452B (en) * | 2016-12-22 | 2019-03-19 | 宁波市海翔远洋捕捞用具有限公司 | A kind of take-up of winch |
| CN106719484B (en) * | 2016-12-22 | 2020-04-14 | 宁波市海翔远洋捕捞用具有限公司 | Wire pre-winding device of steel twisting machine |
| CN107176499B (en) * | 2017-02-17 | 2018-11-30 | 东阳市光明电力建设有限公司 | A kind of spiral dish structure |
| CN109083950A (en) * | 2018-08-15 | 2018-12-25 | 武汉船用机械有限责任公司 | A kind of windlass band brake |
| CN113022798B (en) * | 2021-04-21 | 2022-03-04 | 浙江省海洋水产研究所 | Auxiliary net hauling device of fishing boat net hauler |
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| CN103569326A (en) | 2014-02-12 |
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Address after: 315806 No. 206 Tiantai Mountain Road, Beilun District, Zhejiang, Ningbo Applicant after: JESSN MARINE EQUIPMENT Co.,Ltd. Address before: 315806 No. 206 Tiantai Mountain Road, Beilun District, Zhejiang, Ningbo Applicant before: Victory Marine Equipment Co.,Ltd. Address after: 315806 No. 206 Tiantai Mountain Road, Beilun District, Zhejiang, Ningbo Applicant after: Victory Marine Equipment Co.,Ltd. Address before: 315806 No. 206 Tiantai Mountain Road, Beilun District, Zhejiang, Ningbo Applicant before: NINGBO JESSN OCEAN DEVELOPMENT Co.,Ltd. |
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Effective date of registration: 20191129 Address after: 316100 room 402, No. 2, Yugang Road, Shenjiamen street, Putuo District, China (Zhejiang) pilot Free Trade Zone, Zhoushan City, Zhejiang Province (independent declaration) Patentee after: Zhongchuang Marine Technology Co.,Ltd. Address before: 315806 No. 206 Tiantai Mountain Road, Beilun District, Zhejiang, Ningbo Patentee before: JESSN MARINE EQUIPMENT Co.,Ltd. |