CN114889772B - Launching cradle structure for arc Liang Dingguan and installation method thereof - Google Patents
Launching cradle structure for arc Liang Dingguan and installation method thereof Download PDFInfo
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- CN114889772B CN114889772B CN202210378984.1A CN202210378984A CN114889772B CN 114889772 B CN114889772 B CN 114889772B CN 202210378984 A CN202210378984 A CN 202210378984A CN 114889772 B CN114889772 B CN 114889772B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
- B63C7/16—Apparatus engaging vessels or objects
-
- 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
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a transmitting frame structure for an arc Liang Dingguan and an installation method thereof, comprising the following steps: the frame body is arc-shaped, and a communication channel for the arc-shaped beam to pass through is formed in the frame body in a hollow mode; a first ear plate fixed to an end of the frame; a sleeve fixed at the end of the frame body and arranged close to the first lug plate; the second ear plate corresponds to the first ear plate and is fixed on the water bottom; and the locating rod corresponds to the sleeve and is vertically fixed on the water bottom, the locating rod is sleeved by the sleeve through the lower support body, so that the support body moves downwards along the locating rod until the first through hole is opposite to the second through hole, and then the fixing pin penetrates through the first through hole and the second through hole to fix the support body on the water bottom. The invention effectively solves the problem that the integrity of the salvaged object is difficult to ensure in the traditional salvaging mode, reduces the salvaging difficulty, reduces the construction risk, reduces the possibility of damaging the salvaged object, saves manpower and material resources, ensures the integrity of the salvaged object, and reduces the difficulty of underwater construction.
Description
Technical Field
The invention relates to the field of underwater salvage, in particular to a launching frame structure for an arc Liang Dingguan and an installation method thereof.
Background
In traditional underwater salvage projects, a pontoon method is generally adopted, namely a plurality of pontoons are directly bundled on an article to be salvaged, the article is directly hung on the water surface by means of buoyancy generated by the pontoons, and the salvage mode often generates injuries which are difficult to restore when facing fragile objects, and has the defects of high field operation difficulty and high construction risk, more time and labor are consumed in the construction process, and the integrity of the salvaged article cannot be ensured.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a transmitting frame structure for an arc beam jacking pipe and an installation method thereof, which solve the problem that the integrity of a salvaged object is difficult to ensure in the traditional salvaging mode, reduce the salvaging difficulty, reduce the construction risk, reduce the possibility that the salvaged object is damaged, save manpower and material resources, ensure the integrity of the salvaged object and reduce the difficulty of underwater construction.
The technical scheme for achieving the purpose is as follows:
the invention provides a launching frame structure for an arc beam jacking pipe, which comprises the following components:
the frame body is arc-shaped, and a communication channel for the arc-shaped beam to pass through is formed in the frame body in a hollow mode;
the first lug plate is fixed at the end part of the frame body and provided with a first through hole;
a sleeve fixed at the end of the frame body and arranged close to the first lug plate;
the second ear plate corresponds to the first ear plate and is used for being fixed on the water bottom, and a second through hole is formed in the second ear plate; and
the locating rod corresponds to the sleeve and is vertically fixed on the water bottom, the locating rod is sleeved by the lower support body and the sleeve, so that the support body moves downwards along the locating rod until the first through hole is opposite to the second through hole, and then the fixing pin penetrates through the first through hole and the second through hole to fix the support body on the water bottom.
According to the invention, the transmitting frame structure for the arc Liang Dingguan is adopted, the frame body is downwards moved along the positioning rod until the first through hole is opposite to the second through hole by means of the sleeve which is sleeved on the positioning rod, then the fixing pin penetrates through the first through hole and the second through hole to fix the frame body on the water bottom, after the frame body is fixed on the water bottom, the arc beam is started, so that the arc beam moves along the communication channel and is inserted into sludge on the water bottom, the object to be salvaged is wrapped, the fixing pin is pulled out, and the frame body is lifted, so that the arc beam supports the object to be lifted together, the problem that the integrity of the salvaged object is difficult to ensure in a traditional salvaging mode is solved, the salvaging difficulty is reduced, the construction risk is reduced, the possibility that the salvaged object is damaged is reduced, the manpower and material resources are saved, the integrity of the salvaged object is guaranteed, and the difficulty of underwater construction is reduced.
The invention further improves the launching frame structure for the arc beam jacking pipe, which is characterized by further comprising a first telescopic piece which is fixed at the end part of the frame body and opposite to the first through hole, wherein the length of the first telescopic piece is adjustable, a fixed pin is fixed at the end part of the first telescopic piece, which is close to the first through hole, and the fixed pin is driven to move towards the direction, which is close to the first lug plate, by extending the first telescopic piece, so that the fixed pin penetrates through the first through hole and the second through hole.
The invention further improves the launching frame structure for the arc beam jacking pipe, which is characterized by further comprising a second telescopic piece which is fixed at the end part of the frame body and parallel to the positioning rod, wherein the height of the second telescopic piece is adjustable, and the frame body is driven to ascend or descend by adjusting the height of the second telescopic piece, so that the first through hole is opposite to the second through hole.
The invention relates to a further improvement of a launching frame structure for an arc beam jacking pipe, which is characterized in that a positioning rod comprises a fixing part for fixing at the bottom of water, a clamping part connected with the top of the fixing part in a clamping way, and a steel wire rope with one end connected with the top of the clamping part, wherein the other end of the steel wire rope is fixed on a lifting device for lowering a frame body, and a sleeve is sleeved on the steel wire rope and the clamping part.
The invention further improves the launching cradle structure for the arc beam jacking pipe, and the launching cradle structure is characterized in that a plurality of rib plates are arranged on the outer wall of the sleeve at intervals.
The invention further improves the launching frame structure for the arc beam jacking pipe, which comprises a plurality of guide wheels which are arranged at intervals and rotatably arranged on the inner wall of the frame body, wherein the guide wheels are attached to the surface of the arc beam.
The invention further improves the launching frame structure for the arc beam jacking pipe, wherein gears are arranged at the end parts of the arc beams;
the inner wall of the communication channel is provided with a rack meshed with the gear, and the rack is arranged along the extending direction of the communication channel, and the gear is rotated to enable the arc beam to move along the rack.
The invention further improves the launching frame structure for the arc beam jacking pipe, which comprises a plurality of supporting rods supported between the side walls of the frame body.
The invention provides a method for installing a launching frame structure for an arc beam jacking pipe, which comprises the following steps:
providing a positioning rod and a second ear plate, and fixing the positioning rod and the second ear plate on the water bottom;
the frame body is lowered, the sleeve is sleeved on the positioning rod, and the frame body moves downwards along the positioning rod until the first through hole is opposite to the second through hole;
the fixing pin is penetrated through the first through hole and the second through hole to fix the frame body at the water bottom.
The invention further improves the mounting method of the launching frame structure for the arc beam jacking pipe, which is characterized by further comprising a first telescopic piece which is fixed at the end part of the frame body and is opposite to the first through hole, wherein the length of the first telescopic piece is adjustable, and a fixing pin is fixed at the end part of the first telescopic piece, which is close to the first through hole;
when the first through hole is opposite to the second through hole, the first telescopic piece is extended to drive the fixing pin to move towards the direction close to the first ear plate, and therefore the fixing pin penetrates through the first through hole and the second through hole.
Drawings
Fig. 1 is a perspective view of a launching cradle structure for an arc beam jacking pipe of the present invention.
FIG. 2 is an enlarged schematic view of a sleeve portion of the present invention prior to lowering of the launching cradle structure for an arc beam jacking pipe.
FIG. 3 is an enlarged schematic view of a sleeve portion of the present invention for use in lowering a firing frame structure for an arc beam jacking pipe.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
Referring to fig. 1, the invention provides a launching frame structure for an arc beam jacking pipe and an installation method thereof, wherein a frame body is lowered and a sleeve is sleeved on a positioning rod, so that the frame body moves downwards along the positioning rod until a first through hole is opposite to a second through hole, a fixing pin is arranged through the first through hole and the second through hole to fix the frame body at the water bottom, after the frame body is fixed at the water bottom, the arc beam is started, so that the arc beam moves along a communication channel and is inserted into sludge at the water bottom, thereby wrapping an object to be salvaged, further pulling out the fixing pin and lifting the frame body, so that the arc beam supports the object to rise together, the problem that the integrity of the salvaged object is difficult to be ensured in the traditional salvaging mode is solved, the salvaging difficulty is reduced, the construction risk is reduced, the possibility of damaging the salvaged object is reduced, manpower and material resources are saved, and the difficulty of underwater construction is reduced. The structure of the launching cradle for an arc beam jacking pipe according to the present invention will be described with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a perspective view of a launching cradle structure for an arc beam jacking pipe according to the present invention. The structure of the launching cradle for an arc beam jacking pipe according to the present invention will be described with reference to fig. 1.
As shown in fig. 1 to 3, the launching cradle structure for an arc beam jacking pipe of the present invention includes:
a circular arc-shaped frame 11, wherein a communication channel for the arc-shaped beam to pass through is formed in the frame 11;
a first ear plate 13 fixed to an end of the frame 11, the first ear plate 13 being provided with a first through hole;
a sleeve 12 fixed to an end of the frame 11 and disposed adjacent to the first ear plate 13;
the second ear plate corresponds to the first ear plate 13 and is used for being fixed on the water bottom, and a second through hole is formed in the second ear plate; and
the positioning rod 14 corresponding to the sleeve 12 and vertically fixed on the water bottom is arranged on the positioning rod 14 by lowering the frame 11 and sleeving the sleeve 12, so that the frame 11 moves downwards along the positioning rod 14 until the first through hole is opposite to the second through hole, and the fixing pin 151 penetrates through the first through hole and the second through hole to fix the frame 11 on the water bottom.
Specifically, the outer wall of the sleeve 12 is provided with a plurality of ribs 121 at intervals.
Preferably, the device further comprises a plurality of guide wheels which are arranged at intervals and rotatably mounted on the inner wall of the frame body 11, and the guide wheels are attached to the surface of the arc-shaped beam.
Specifically, a plurality of support bars 111 supported between the side walls of the frame 11 are further included.
As a preferred embodiment of the present invention, the first telescopic member 15 is fixed at the end of the frame 11 and opposite to the first through hole, the length of the first telescopic member 15 is adjustable, the end of the first telescopic member 15 near the first through hole is fixed with the fixing pin 151, and the fixing pin 151 is driven to move towards the direction near the first ear plate 13 by extending the first telescopic member 15, so that the fixing pin 13 is penetrated through the first through hole and the second through hole.
Further, the positioning device further comprises a second telescopic member 16 fixed at the end of the frame 11 and parallel to the positioning rod 14, wherein the height of the second telescopic member 16 is adjustable, and the frame 11 is driven to ascend or descend by adjusting the height of the second telescopic member 16, so that the first through hole is opposite to the second through hole.
Further, the positioning rod 14 includes a fixing portion for fixing to the water bottom, a clamping portion connected to the top of the fixing portion in a clamping manner, and a wire rope with one end connected to the top of the clamping portion, the other end of the wire rope is fixed to a lifting device for lowering the frame 11, the sleeve 12 is sleeved on the wire rope and the clamping portion, the fixing portion can be fixed to the water bottom first, and then the wire rope and the clamping portion are inserted into the top of the fixing portion after passing through the sleeve 12.
Further, a gear is arranged at the end part of the arc-shaped beam;
the inner wall of the communication channel is provided with a rack meshed with the gear, and the rack is arranged along the extending direction of the communication channel, and the gear is rotated to enable the arc beam to move along the rack.
The specific implementation mode of the launching frame structure for the arc beam jacking pipe is as follows:
the second lug plate is fixed at a position near the underwater salvage object, the second lug plate can be fixed on the top surface of the top beam, the top beam is further fixed on the underwater, the fixing part is fixed at a position near the second lug plate, the clamping part and the steel wire rope penetrate through the sleeve 12, the clamping part is inserted into the top of the fixing part, the steel wire rope can be fixed on hoisting equipment for hoisting the frame body, and the clamping part is vertical at the moment;
the frame 11 is lowered by using hoisting equipment, the frame 11 moves downwards along the steel wire rope, the sleeve 12 is sleeved on the clamping part, the frame 11 continues to move downwards until the second telescopic piece 16 is arranged on the top surface of the top beam, at the moment, the positioning rod 14 limits the horizontal movement of the frame 11, so that only the vertical position of the frame 11 is required to be adjusted, and the second telescopic piece 16 is lengthened or shortened to adjust the vertical position of the frame 11, so that the first through hole is opposite to the second through hole;
the first telescopic piece 15 is extended to drive the fixing pin 151 to move towards the first through hole and penetrate through the first through hole and the second through hole, so that the fixing frame body 11 is arranged on the top of the underwater top beam;
starting the gear to enable the arc-shaped beam to move along the communication channel of the frame body and drill into the bottom mud of the water bottom until the arc-shaped beam and the frame body 11 are enclosed to form a circle, and at the moment, the arc-shaped beam encloses a salvage object, namely the salvage object is positioned above the arc-shaped beam, the arc-shaped beam is fixedly connected with a corresponding top beam, the first telescopic piece 15 is shortened to drive the fixing pin 151 to move in a direction away from the first through hole, so that the fixing pin is separated from the first through hole and the second through hole, and the fixed connection between the frame body 11 and the second lug plate is released;
the frame 11 is lifted upwards to remove the frame 11, and then the top beam is lifted upwards, the arc beam supports the salvage object to move upwards, thereby the salvage object is taken out of the underwater silt, and because the arc beam supports the salvage object, damage to the salvage object can be avoided, the integrity of the salvage object is ensured, in addition, the positioning rod 14 is utilized to limit the movement of the frame 11 in the horizontal direction, and the second telescopic rod 16 is utilized to adjust the position of the frame 11 in the vertical direction, so that the first through hole and the second through hole can be opposite, and the first through hole is difficult to be opposite to the second through hole when underwater operation is avoided.
The invention also provides a mounting method of the launching frame structure for the arc beam jacking pipe, which comprises the following steps:
providing a positioning rod 14 and a second ear plate, and fixing the positioning rod 14 and the second ear plate to the water bottom;
lowering the frame 11, and sleeving the sleeve 12 on the positioning rod 14, so that the frame 11 moves downwards along the positioning rod 14 until the first through hole is opposite to the second through hole;
the fixing pin 151 is inserted into the first through hole and the second through hole to fix the frame 11 at the water bottom.
Further, the device further comprises a first telescopic member 15 fixed at the end of the frame 11 and opposite to the first through hole, the length of the first telescopic member 15 is adjustable, and a fixing pin 151 is fixed at the end of the first telescopic member 15 close to the first through hole;
when the first through hole is opposite to the second through hole, the first telescopic member 15 is extended to drive the fixing pin 151 to move in a direction approaching to the first ear plate 13, so that the fixing pin 151 is disposed through the first through hole and the second through hole.
The mounting method of the launching frame structure for the arc beam jacking pipe of the invention comprises the following steps:
the second lug plate is fixed at a position near the underwater salvage object, the second lug plate can be fixed on the top surface of the top beam, the top beam is further fixed on the underwater, the fixing part is fixed at a position near the second lug plate, the clamping part and the steel wire rope penetrate through the sleeve 12, the clamping part is inserted into the top of the fixing part, the steel wire rope can be fixed on hoisting equipment for hoisting the frame body, and the clamping part is vertical at the moment;
the frame 11 is lowered by using hoisting equipment, the frame 11 moves downwards along the steel wire rope, the sleeve 12 is sleeved on the clamping part, the frame 11 continues to move downwards until the second telescopic piece 16 is arranged on the top surface of the top beam, at the moment, the positioning rod 14 limits the horizontal movement of the frame 11, so that only the vertical position of the frame 11 is required to be adjusted, and the second telescopic piece 16 is lengthened or shortened to adjust the vertical position of the frame 11, so that the first through hole is opposite to the second through hole;
the first telescopic piece 15 is extended to drive the fixing pin 151 to move towards the first through hole and penetrate through the first through hole and the second through hole, so that the fixing frame body 11 is arranged on the top of the underwater top beam;
starting the gear to enable the arc-shaped beam to move along the communication channel of the frame body and drill into the bottom mud of the water bottom until the arc-shaped beam and the frame body 11 are enclosed to form a circle, and at the moment, the arc-shaped beam encloses a salvage object, namely the salvage object is positioned above the arc-shaped beam, the arc-shaped beam is fixedly connected with a corresponding top beam, the first telescopic piece 15 is shortened to drive the fixing pin 151 to move in a direction away from the first through hole, so that the fixing pin is separated from the first through hole and the second through hole, and the fixed connection between the frame body 11 and the second lug plate is released;
the frame 11 is lifted upwards to remove the frame 11, and then the top beam is lifted upwards, the arc beam supports the salvage object to move upwards, thereby the salvage object is taken out of the underwater silt, and because the arc beam supports the salvage object, damage to the salvage object can be avoided, the integrity of the salvage object is ensured, in addition, the positioning rod 14 is utilized to limit the movement of the frame 11 in the horizontal direction, and the second telescopic rod 16 is utilized to adjust the position of the frame 11 in the vertical direction, so that the first through hole and the second through hole can be opposite, and the first through hole is difficult to be opposite to the second through hole when underwater operation is avoided.
The present invention has been described in detail with reference to the embodiments of the drawings, and those skilled in the art can make various modifications to the invention based on the above description. Accordingly, certain details of the illustrated embodiments are not to be taken as limiting the invention, which is defined by the appended claims.
Claims (8)
1. A launch pad structure for an arc Liang Dingguan comprising:
the frame body is arc-shaped, and a communication channel for the arc-shaped beam to pass through is formed in the frame body in a hollow mode;
the first lug plate is fixed at the end part of the frame body and provided with a first through hole;
a sleeve fixed at the end of the frame body and arranged close to the first lug plate;
the second ear plate corresponds to the first ear plate and is fixed on the water bottom, and a second through hole is formed in the second ear plate;
the positioning rod corresponds to the sleeve and is vertically fixed on the water bottom, the positioning rod comprises a fixing part, a clamping part and a steel wire rope, the fixing part is fixed on the water bottom, the clamping part is connected to the top of the fixing part in a clamping mode, one end of the steel wire rope is connected to the top of the clamping part, the other end of the steel wire rope is fixed on a lifting device for lowering the frame body, the sleeve is sleeved on the steel wire rope and the clamping part, the frame body is lowered and the sleeve is sleeved on the positioning rod, so that the frame body moves downwards along the positioning rod until the first through hole is opposite to the second through hole, and further a fixing pin is arranged through the first through hole and the second through hole in a penetrating mode to fix the frame body on the water bottom; and
the second telescopic piece is fixed at the end part of the frame body and parallel to the positioning rod, the height of the second telescopic piece is adjustable, and the first through hole is opposite to the second through hole by adjusting the height of the second telescopic piece so as to drive the frame body to ascend or descend.
2. The launching cradle structure for an arc beam jacking pipe according to claim 1, further comprising a first telescopic member fixed to an end of the cradle body and opposite to the first through hole, wherein the length of the first telescopic member is adjustable, the end of the first telescopic member, which is close to the first through hole, is fixed with the fixing pin, and the fixing pin is driven to move in a direction close to the first lug plate by extending the first telescopic member, so that the fixing pin is penetrated through the first through hole and the second through hole.
3. The structure of the launching cradle for an arc beam jacking pipe according to claim 1, wherein the outer wall of the sleeve is provided with a plurality of rib plates at intervals.
4. The launching cradle structure for an arc beam jacking pipe of claim 1, further comprising a plurality of guide wheels arranged at intervals and rotatably mounted on the inner wall of the cradle body, wherein the guide wheels are attached to the surface of the arc beam.
5. The launch pad structure for an arc beam jacking pipe according to claim 1, wherein an end of said arc beam is provided with a gear;
the inner wall of the communication channel is provided with a rack meshed with the gear, the rack is arranged along the extending direction of the communication channel, and the gear is rotated to enable the arc-shaped beam to move along the rack.
6. The firing frame structure for an arc beam jacking pipe as claimed in claim 1, further comprising a plurality of support rods supported between side walls of said frame body.
7. A method of installing a firing frame structure for an arc beam jacking pipe as claimed in claim 1, comprising the steps of:
providing the positioning rod and the second ear plate, and fixing the positioning rod and the second ear plate to the water bottom;
the frame body is lowered, the sleeve is sleeved on the positioning rod, and the frame body moves downwards along the positioning rod until the first through hole is opposite to the second through hole;
the fixing pin is arranged through the first through hole and the second through hole in a penetrating mode so as to fix the frame body at the water bottom.
8. The method of installing a launcher structure for arc Liang Dingguan of claim 7, further comprising a first telescoping member fixed to an end of the frame opposite the first through hole, the first telescoping member being adjustable in length and the end of the first telescoping member adjacent to the first through hole being fixed with the fixed pin;
when the first through hole is opposite to the second through hole, the first telescopic piece is extended to drive the fixing pin to move towards the direction close to the first ear plate, so that the fixing pin penetrates through the first through hole and the second through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210378984.1A CN114889772B (en) | 2022-04-12 | 2022-04-12 | Launching cradle structure for arc Liang Dingguan and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210378984.1A CN114889772B (en) | 2022-04-12 | 2022-04-12 | Launching cradle structure for arc Liang Dingguan and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN114889772A CN114889772A (en) | 2022-08-12 |
| CN114889772B true CN114889772B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210378984.1A Active CN114889772B (en) | 2022-04-12 | 2022-04-12 | Launching cradle structure for arc Liang Dingguan and installation method thereof |
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| Country | Link |
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| CN (1) | CN114889772B (en) |
Citations (2)
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| EP2106997A1 (en) * | 2008-04-02 | 2009-10-07 | Saipem S.p.A. | Method and equipment for salvaging a wreck containing an environmental hazardous material |
| CN111377038A (en) * | 2020-04-21 | 2020-07-07 | 交通运输部烟台打捞局 | Guide frame for salvage of sunken ship and application thereof |
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| JP2002145186A (en) * | 2000-11-14 | 2002-05-22 | Nippon Sarubueeji Kk | Hoisting rope fixing method for sunken body and hoisting rope fixing system for sunken body |
| CN101274663B (en) * | 2008-05-13 | 2011-09-07 | 交通部广州打捞局 | Method for salvaging wreck integrally by steel caisson |
| CN102358407B (en) * | 2011-09-19 | 2013-07-24 | 中国人民解放军海军通信应用研究所 | Seabed shearing salvaging device for undersea cable |
| CN107140156B (en) * | 2017-05-22 | 2023-07-25 | 交通运输部上海打捞局 | Method for integrally salvaging sunken ship by bottom-supporting steel girder |
| CN206927490U (en) * | 2017-07-26 | 2018-01-26 | 韩朝 | The anti-sway dolly of suspension hook of crane |
| CN108267824A (en) * | 2017-12-08 | 2018-07-10 | 天津叁捌零零科技有限公司 | A kind of fixed equipment based on submarine optical fiber cable |
| CN211141314U (en) * | 2019-11-29 | 2020-07-31 | 浙江省疏浚工程有限公司 | Submerged pipe fishing platform |
| CN111559476B (en) * | 2020-01-20 | 2021-02-12 | 上海交通大学 | Floating type fishing device suitable for underwater long columnar object |
| CN215361745U (en) * | 2021-08-02 | 2021-12-31 | 河北华元科工股份有限公司 | Ship anchor combined structure |
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2022
- 2022-04-12 CN CN202210378984.1A patent/CN114889772B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2106997A1 (en) * | 2008-04-02 | 2009-10-07 | Saipem S.p.A. | Method and equipment for salvaging a wreck containing an environmental hazardous material |
| CN111377038A (en) * | 2020-04-21 | 2020-07-07 | 交通运输部烟台打捞局 | Guide frame for salvage of sunken ship and application thereof |
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| CN114889772A (en) | 2022-08-12 |
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