CN111396240A - Tidal power generation device based on mechanical transmission - Google Patents
Tidal power generation device based on mechanical transmission Download PDFInfo
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- CN111396240A CN111396240A CN202010248298.3A CN202010248298A CN111396240A CN 111396240 A CN111396240 A CN 111396240A CN 202010248298 A CN202010248298 A CN 202010248298A CN 111396240 A CN111396240 A CN 111396240A
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- movably connected
- connecting rod
- power generation
- device based
- generation device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
- F03B13/262—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy using the relative movement between a tide-operated member and another member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Oceanography (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention relates to the technical field of new energy, and discloses a tidal power generation device based on mechanical transmission, which comprises a platform, wherein the bottom of the platform is movably connected with a first connecting rod, the bottom of the platform is movably connected with a fixed platform, one end of a fourth connecting rod, far away from a third connecting rod, is movably connected with a first sword gear, the interior of the first sword gear is movably connected with a first output shaft, and one end of a seventh connecting rod, far away from a rotating slide block, is movably connected with a third output shaft. This tidal power generation device based on mechanical transmission through the connection of platform, first output shaft, has solved that present cofferdam formula wave power equipment area is great, receives the great problem of geographical environment influence, improves the practicality, floats the connection of board, third output shaft through the second, has solved the tidal power generation equipment poor stability who uses single performance, has the problem of the condition that can not generate electricity in succession, and effectual improvement can not continuous output stable electric power, problem that the practicality is not high.
Description
Technical Field
The invention relates to the technical field of new energy, in particular to a tidal power generation device based on mechanical transmission.
Background
With the development of economy in China, energy problems are paid more and more attention to, the traditional energy sources which are mainly used at present are coal, petroleum and the like, the traditional energy sources are non-renewable, certain damage can be caused to the environment when the traditional energy sources are used, renewable energy sources are regarded as clean energy sources by people, and tidal energy has rich reserves and cyclic regeneration.
Tidal energy has good comprehensive utilization benefit as emerging new energy of electric power, but present cofferdam formula wave power generating equipment area is great, receives geographical environment influence great, in addition, uses the tidal energy power generating equipment poor stability of single performance, exists the condition that can not generate electricity in succession, can not output stable electric power in succession, and the practicality is not high.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the tidal power generation device based on mechanical transmission, which has the advantages of small floor area, small influence on geographical environment and high stability, and solves the problems of large floor area, large influence on geographical environment and low stability.
(II) technical scheme
In order to achieve the purposes of small occupied area, small influence on geographical environment and high stability, the invention provides the following technical scheme: a tidal power generation device based on mechanical transmission comprises a platform, wherein the bottom of the platform is movably connected with a first connecting rod, the outer side of the first connecting rod is sleeved with a loop bar, one end of the loop bar is movably connected with a first floating plate, the outer side of the loop bar is movably connected with a first fixing piece, the inner part of the first fixing piece is movably connected with a spherical connecting piece, the outer side of the spherical connecting piece is movably connected with a second connecting rod, one end of the second connecting rod is movably connected with a third connecting rod, one end of the third connecting rod, far away from the second connecting rod, is movably connected with a fourth connecting rod, the bottom of the platform is movably connected with a fixed platform, one end of the fourth connecting rod, far away from the third connecting rod, is movably connected with a first sword gear, and; a connecting sliding block is movably connected inside the second floating plate, a rubber ring is movably connected inside the connecting sliding block, a fifth connecting rod is movably connected inside the rubber ring, one end of the fifth connecting rod is movably connected with a short rod, one end of the short rod, which is far away from the fifth connecting rod, is movably connected with a sixth connecting rod, a second fixing piece is movably connected outside the sixth connecting rod, and the surface of the second fixing piece is movably connected with a shell;
one end swing joint that the short bar was kept away from to the sixth connecting rod has the second sword gear, the inside swing joint of second sword gear has the second output shaft, the right side fixedly connected with of second showy board floats the body, the middle part swing joint that floats the body has the fixed axle, the equal swing joint in both ends of fixed axle has the third mounting, the upper surface that floats the body is provided with the screw hole, the inside swing joint of screw hole has the worm, the middle part of shell is provided with straight slide, the left end swing joint of straight slide has the resistance block, the outside swing joint of straight slide has the slide, the slide have short swing joint to have the sports board, the surface swing joint of sports board has the spring, the positive surface of slide is provided with the broken line slide, the inside swing joint of broken line slide has the rotation slider, the outside swing joint that rotates the slider has the seventh connecting rod, the one end.
Preferably, the number of the first rapier gears is not less than two, and the two first rapier gears are movably connected.
Preferably, the inside of connecting the slider is provided with infundibulate through-hole, and with rubber circle swing joint.
Preferably, the short rods are not less than two and are movably connected with the fifth connecting rod.
Preferably, the second fixing piece is provided with at least two pieces, one of the second fixing pieces is movably connected with the sixth connecting rod, and the other one of the second fixing pieces is movably connected with the movable rod.
Preferably, the third fixing piece is not less than two and is movably connected with the shell.
Preferably, the third output shaft is movably connected with the housing.
(III) advantageous effects
Compared with the prior art, the invention provides a tidal power generation device based on mechanical transmission, which has the following beneficial effects:
1. this tidal power generation device based on mechanical transmission through the connection of platform, head rod, loop bar, first mounting, second connecting rod, first sword gear, first output shaft, has solved present cofferdam formula wave power equipment area great, receives the great problem of geographical environment influence, improves the practicality.
2. This tidal power generation device based on mechanical transmission through the connection of second floating plate, link block, second mounting, second output shaft, motion board, third output shaft, has solved the tidal power generation equipment poor stability that uses single performance, has the problem of the condition that can not generate electricity in succession, and effectual improvement can not output in succession and stabilize electric power, problem that the practicality is not high.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a first portion of the present invention;
FIG. 3 is a side view of a second portion of the present invention;
FIG. 4 is a schematic view of the internal structure of the connecting slider and the rubber ring according to the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 6 is an enlarged view of the structure at B in FIG. 1 according to the present invention.
In the figure: 1. a platform; 2. a first connecting rod; 3. a loop bar; 4. a first floating plate; 5. a first fixing member; 6. a spherical connecting member; 7. a second connecting rod; 8. a third connecting rod; 9. a fourth connecting rod; 10. a fixed table; 11. a first sword gear; 12. a first output shaft; 13. a second floating plate; 14. connecting the sliding block; 15. a rubber ring; 16. a fifth connecting rod; 17. a short bar; 18. a sixth connecting rod; 19. a second fixing member; 20. a housing; 21. a second rapier gear; 22. a second output shaft; 23. a floating body; 24. a fixed shaft; 25. a third fixing member; 26. a threaded hole; 27. a worm; 28. a straight slideway; 29. blocking; 30. a slide plate; 31. a motion plate; 32. a spring; 33. a fold line slideway; 34. rotating the slide block; 35. a seventh connecting rod; 36. a third output shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a tidal power generation device based on mechanical transmission comprises a platform 1, a first connecting rod 2 is movably connected to the bottom of the platform 1, a loop bar 3 is sleeved on the outer side of the first connecting rod 2, a first floating plate 4 is movably connected to one end of the loop bar 3, a first fixing piece 5 is movably connected to the outer side of the loop bar 3, a spherical connecting piece 6 is movably connected to the inner side of the first fixing piece 5, a second connecting rod 7 is movably connected to the outer side of the spherical connecting piece 6, a third connecting rod 8 is movably connected to one end of the second connecting rod 7, a fourth connecting rod 9 is movably connected to one end of the third connecting rod 8 far away from the second connecting rod 7, a fixed platform 10 is movably connected to the bottom of the platform 1, a first sword gear 11 is movably connected to one end of the fourth connecting rod 9 far away from the third connecting rod 8, at least two first sword gears 11 are movably connected, the first output shaft 12 is movably connected inside the first rapier gear 11 and outputs mechanical energy.
The inside of the second floating plate 13 is movably connected with a connecting slide block 14, the inside of the connecting slide block 14 is movably connected with a rubber ring 15, the inside of the connecting slide block 14 is provided with a funnel-shaped through hole and is movably connected with the rubber ring 15, the inside of the rubber ring 15 is movably connected with a fifth connecting rod 16, one end of the fifth connecting rod 16 is movably connected with a short rod 17, the number of the short rods 17 is not less than two, the short rods are both movably connected with the fifth connecting rod 16, one end of the short rod 17 far away from the fifth connecting rod 16 is movably connected with a sixth connecting rod 18, the outer side of the sixth connecting rod 18 is movably connected with a second fixing piece 19, the number of the second fixing piece 19 is not less than two, one of the second fixing piece is movably connected with the sixth connecting rod 18, the other one of the second fixing piece is movably connected with a movable rod, the surface of the, the inside of the second sword gear 21 is movably connected with a second output shaft 22, the right side of the second floating plate 13 is fixedly connected with a floating body 23, the middle part of the floating body 23 is movably connected with a fixed shaft 24, both ends of the fixed shaft 24 are movably connected with third fixing pieces 25, the number of the third fixing pieces 25 is not less than two, and the third fixing pieces are movably connected with the shell 20, the upper surface of the floating body 23 is provided with a threaded hole 26, the inside of the threaded hole 26 is movably connected with a worm 27, the middle part of the shell 20 is provided with a straight slideway 28, the left end of the straight slideway 28 is movably connected with a stop block 29, the outer side of the straight slideway 28 is movably connected with a sliding plate 30, the sliding plate 30 is short and movably connected with a moving plate 31, the surface of the moving plate 31 is movably connected with a spring 32, the front surface of the sliding plate 30 is provided with a folding line 33, the, one end of the seventh connecting rod 35, which is far away from the rotating slider 34, is movably connected with a third output shaft 36, and the third output shaft 36 is movably connected with the housing 20.
The working principle is that the tidal power generation device based on mechanical transmission comprises a platform 1, wherein the platform 1 is connected with a first connecting rod 2, the outer side of the first connecting rod 2 is sleeved with a loop bar 3, the loop bar 3 is connected with a first floating plate 4, the first floating plate 4 floats on the sea surface, the fluctuation of sea waves enables the first floating plate 4 to move up and down, the loop bar 3 moves up and down, the loop bar 3 is connected with a first fixing piece 5, the first fixing piece 5 is connected with a spherical connecting piece 6, the spherical connecting piece 6 is connected with a second connecting rod 7, the second connecting rod 7 rotates, the second connecting rod 7 is connected with a third connecting rod 8, the third connecting rod 8 rotates, the third connecting rod 8 is far away from the second connecting rod 7 and is connected with a fourth connecting rod 9, the fourth connecting rod 9 rotates, the fourth connecting rod 9 is far away from the third connecting rod 8 and is connected with a first sword gear 11, and enables the first, the first rapier gear 11 is connected to a first output shaft 12, so that the first output shaft 12 is rotated.
The second floating plate 13 floats on the sea surface, the sea waves enter the shell 20, the second floating plate 13 swings in a fan shape along with the sea waves by taking the axis of the fifth connecting rod 16 as the center, and the second floating plate 13 is connected with the connecting slide block 14. When the waves make the second floating plate 13 swing clockwise, the second floating plate 13 makes the connecting slide block 14 move rightwards in the second floating plate 13, and when the waves make the second floating plate 13 swing anticlockwise, the connecting slide block 14 can move leftwards, and the swing amplitude is increased. The connecting sliding block 14 is connected with a rubber ring 15, the rubber ring 15 is connected with a fifth connecting rod 16, when the connecting sliding block 14 moves towards the left side, the fifth connecting rod 16 can be driven to rotate anticlockwise on an X axis for a half cycle, when the connecting sliding block 14 moves towards the right side, the fifth connecting rod 16 can rotate anticlockwise on the X axis for completing a cycle, the fifth connecting rod 16 is connected with a short rod 17, the short rod 17 rotates, the short rod 17 is far away from the fifth connecting rod 16 and is connected with a sixth connecting rod 18, the sixth connecting rod 18 rotates, the sixth connecting rod 18 is far away from the short rod 17 and is connected with a second sword gear 21, the second sword gear 21 rotates, the second sword gear 21 is connected with a second output shaft 22, and the second output shaft 22 rotates. The right side of the second floating plate 13 is fixedly connected with a floating body 23, the middle part of the floating body 23 is movably connected with a fixed shaft 24, and the position of the second floating plate 13 is fixed.
A straight slide way 28 is arranged in the middle of the shell 20, a stop block 29 is movably connected at the left end of the straight slide way 28, a slide plate 30 is connected with the straight slide way 28, a short movable connection of the slide plate 30 is provided with a moving plate 31, a large amount of seawater enters the shell 20 to impact the moving plate 31, so that the moving plate 31 moves rightwards, the slide plate 30 moves rightwards, a broken line slide way 33 is arranged on the front surface of the slide plate 30, the broken line slide way 33 is connected with a rotating slide block 34, so that the rotating slide block 34 moves in the broken line slide way 33, the rotating slide block 34 is connected with a seventh connecting rod 35, so that the seventh connecting rod 35 rotates clockwise, the seventh connecting rod 35 is far away from the rotating slide block 34 and is connected with a third output shaft 36, so that the third output shaft 36 rotates, the moving plate, the third output shaft 36 is movably connected to the housing 20 by returning the moving plate 31 to the home position by the reaction force.
In conclusion, this tidal power generation device based on mechanical transmission through the connection of platform 1, head rod 2, loop bar 3, first mounting 5, second connecting rod 7, first sword gear 11, first output shaft 12, has solved present cofferdam formula wave power equipment area great, receives the great problem of geographical environment influence, improves the practicality.
This tidal power generation device based on mechanical transmission through the connection of second floating plate 13, link block 14, second mounting 19, second output shaft 22, motion board 31, third output shaft 36, has solved the problem that uses the tidal power generation equipment poor stability of single performance, has the condition that can not generate electricity in succession, and the effectual problem of improving can not output stable electric power in succession, the practicality is not high.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A tidal power generation device based on mechanical transmission comprises a platform (1), and is characterized in that: the bottom of the platform (1) is movably connected with a first connecting rod (2), a loop bar (3) is sleeved on the outer side of the first connecting rod (2), one end of the loop bar (3) is movably connected with a first floating plate (4), the outer side of the loop bar (3) is movably connected with a first fixing piece (5), the inner part of the first fixing piece (5) is movably connected with a spherical connecting piece (6), the outer side of the spherical connecting piece (6) is movably connected with a second connecting rod (7), one end of the second connecting rod (7) is movably connected with a third connecting rod (8), one end, far away from the second connecting rod (7), of the third connecting rod (8) is movably connected with a fourth connecting rod (9), the bottom of the platform (1) is movably connected with a fixed platform (10), one end, far away from the third connecting rod (8), of the fourth connecting rod (9) is movably connected with a first sword gear (11), and the inner part of the first sword; a connecting sliding block (14) is movably connected inside the second floating plate (13), a rubber ring (15) is movably connected inside the connecting sliding block (14), a fifth connecting rod (16) is movably connected inside the rubber ring (15), one end of the fifth connecting rod (16) is movably connected with a short rod (17), one end, far away from the fifth connecting rod (16), of the short rod (17) is movably connected with a sixth connecting rod (18), a second fixing piece (19) is movably connected to the outer side of the sixth connecting rod (18), and a shell (20) is movably connected to the surface of the second fixing piece (19);
one end of the sixth connecting rod (18) far away from the short rod (17) is movably connected with a second sword gear (21), the inside of the second sword gear (21) is movably connected with a second output shaft (22), the right side of the second floating plate (13) is fixedly connected with a floating body (23), the middle part of the floating body (23) is movably connected with a fixed shaft (24), two ends of the fixed shaft (24) are movably connected with third fixing parts (25), the upper surface of the floating body (23) is provided with a threaded hole (26), the inside of the threaded hole (26) is movably connected with a worm (27), the middle part of the shell (20) is provided with a straight slideway (28), the left end of the straight slideway (28) is movably connected with a block (29), the outer side of the straight slideway (28) is movably connected with a sliding plate (30), the short of the sliding plate (30) is movably connected with a moving plate (31), the surface of the moving plate, the front surface of the sliding plate (30) is provided with a broken line slideway (33), the inside of the broken line slideway (33) is movably connected with a rotating slide block (34), the outer side of the rotating slide block (34) is movably connected with a seventh connecting rod (35),
one end of the seventh connecting rod (35) far away from the rotating slide block (34) is movably connected with a third output shaft (36).
2. A tidal power generation device based on mechanical transmission as claimed in claim 1, wherein: the number of the first sword gears (11) is not less than two, and the two first sword gears (11) are movably connected.
3. A tidal power generation device based on mechanical transmission as claimed in claim 1, wherein: the inside of the connecting sliding block (14) is provided with a funnel-shaped through hole and is movably connected with the rubber ring (15).
4. A tidal power generation device based on mechanical transmission as claimed in claim 1, wherein: two are no less than short rod (17), all with fifth connecting rod (16) swing joint.
5. A tidal power generation device based on mechanical transmission as claimed in claim 1, wherein: and at least two second fixing pieces (19) are arranged, wherein one of the second fixing pieces is movably connected with the sixth connecting rod (18), and the other one is movably connected with the movable rod.
6. A tidal power generation device based on mechanical transmission as claimed in claim 1, wherein: and the third fixing pieces (25) are not less than two and are movably connected with the shell (20).
7. A tidal power generation device based on mechanical transmission as claimed in claim 1, wherein: the third output shaft (36) is movably connected with the shell (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010248298.3A CN111396240B (en) | 2020-04-01 | 2020-04-01 | Tidal power generation device based on mechanical transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010248298.3A CN111396240B (en) | 2020-04-01 | 2020-04-01 | Tidal power generation device based on mechanical transmission |
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| CN111396240A true CN111396240A (en) | 2020-07-10 |
| CN111396240B CN111396240B (en) | 2021-06-18 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205207043U (en) * | 2015-11-25 | 2016-05-04 | 河北省电力勘测设计研究院 | Wave power generator |
| CN106351784A (en) * | 2016-10-16 | 2017-01-25 | 荆门创佳机械科技有限公司 | Wave energy power generation device storing energy by utilization of torsional springs |
| CN109869267A (en) * | 2019-04-19 | 2019-06-11 | 上海海事大学 | A kind of wave self-power generation type buoy and its electricity-generating method |
| CN209278055U (en) * | 2018-12-17 | 2019-08-20 | 青岛理工大学 | A kind of wave energy generating set based on crank connecting link |
| CN110848075A (en) * | 2019-10-31 | 2020-02-28 | 亳州学院 | Offshore shore wave energy and tidal energy combined power generation device |
| US20200072182A1 (en) * | 2018-08-28 | 2020-03-05 | Kuo-Chang Huang | Wave electricity generator system |
-
2020
- 2020-04-01 CN CN202010248298.3A patent/CN111396240B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205207043U (en) * | 2015-11-25 | 2016-05-04 | 河北省电力勘测设计研究院 | Wave power generator |
| CN106351784A (en) * | 2016-10-16 | 2017-01-25 | 荆门创佳机械科技有限公司 | Wave energy power generation device storing energy by utilization of torsional springs |
| US20200072182A1 (en) * | 2018-08-28 | 2020-03-05 | Kuo-Chang Huang | Wave electricity generator system |
| CN209278055U (en) * | 2018-12-17 | 2019-08-20 | 青岛理工大学 | A kind of wave energy generating set based on crank connecting link |
| CN109869267A (en) * | 2019-04-19 | 2019-06-11 | 上海海事大学 | A kind of wave self-power generation type buoy and its electricity-generating method |
| CN110848075A (en) * | 2019-10-31 | 2020-02-28 | 亳州学院 | Offshore shore wave energy and tidal energy combined power generation device |
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Effective date of registration: 20210603 Address after: 224200 kaizhuang North District, Qindong Industrial Park, Dongtai City, Yancheng City, Jiangsu Province Applicant after: DONGTAI HAIHUA HARDWARE MACHINERY Co.,Ltd. Address before: Zhang Tai Xiang TA Shan Cun, Wencheng County, Wenzhou City, Zhejiang Province 325300 Applicant before: Xu Juandi |
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