CN111924060B - Plugging umbrella for underwater broken hole of cabin and use method thereof - Google Patents
Plugging umbrella for underwater broken hole of cabin and use method thereof Download PDFInfo
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- CN111924060B CN111924060B CN202010964190.4A CN202010964190A CN111924060B CN 111924060 B CN111924060 B CN 111924060B CN 202010964190 A CN202010964190 A CN 202010964190A CN 111924060 B CN111924060 B CN 111924060B
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- umbrella
- locking device
- pneumatic locking
- cabin
- plugging
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- 238000000034 method Methods 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
- B63B43/10—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy
- B63B43/16—Temporary equipment for stopping leaks, e.g. collision mats
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Walking Sticks, Umbrellas, And Fans (AREA)
- Holders For Apparel And Elements Relating To Apparel (AREA)
Abstract
The invention discloses a plugging umbrella for an underwater hole opening of a ship cabin, which comprises an umbrella top, a hollow umbrella pipe with the top end fixedly connected with the middle part of the umbrella top and the two ends closed, and a centralized control system arranged in the ship cabin, wherein a rectangular groove is arranged on the side wall of the umbrella pipe, the two ends of the side wall of the umbrella pipe are fixedly connected with a first pneumatic locking device and a second pneumatic locking device respectively, the bottom end fixedly connected with the top end in the interior of the umbrella pipe is fixedly connected with a driving device movably connected with a mandril on the side wall of the umbrella pipe through the rectangular groove, the umbrella top comprises an umbrella cover, umbrella ribs with a plurality of side walls fixedly connected with the inner wall of the umbrella cover, and a plurality of umbrella struts with one ends movably connected with the plurality of umbrella ribs and the same length, the other ends of the umbrella struts are movably connected with the mandril, and the second pneumatic locking device and the first pneumatic locking device are electrically connected with the centralized control system: the umbrella support drives the umbrella ribs to stretch out and return to be closed, the device is simple in structure and easy to operate, the centralized control system is operated, automatic operation is achieved, timely response is achieved, time and labor are saved, labor force is reduced, and potential safety hazards caused by manual operation are avoided.
Description
Technical Field
The invention belongs to the technical field of ship plugging, and particularly relates to a plugging umbrella for a cabin broken hole.
Background
In the running process of the ship, the ship can be damaged to cause a hole opening, the hole opening needs to be plugged in time, otherwise, the ship can be turned over, and even the ship can sink.
The ship leakage blocking is to block the broken opening by using various leakage blocking equipment and tools after the ship body is broken, so as to control the damage degree after the ship is broken, keep the buoyancy of the ship, and is an important content for controlling the damage of the ship. In recent years, the plugging umbrella can implement outboard plugging operation in a cabin, can compress the umbrella cover on the hull by means of seawater pressure, has the characteristics of quick deployment and retraction, good plugging effect and the like, is widely applied, and forms a series of products, but the umbrella-shaped plugging device has a complex structure, particularly when the plugging device is implemented, the plugging device is ejected outwards from a damaged port of a ship, the pressure of water borne by the plugging device is large, deflection can occur, and because various devices are fixed on the inner shipboard, the eccentric plugging box is difficult to be sealed close to the shipboard, and the plugging is not timely and convenient. After the umbrella cover of the existing plugging umbrella is folded, the umbrella cover supporting rod cannot be horizontally retracted with the umbrella rod, so that the cross section area of the plugging umbrella is large, the plugging umbrella is limited by the area of a damaged opening, the plugging is inflexible, the plugging effect is limited, and moreover, the plugging device is large in weight and inconvenient to fix.
Disclosure of Invention
The invention aims to provide a plugging umbrella for an underwater broken hole of a cabin, which can prevent water from leaking into the broken hole of the underwater cabin.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the invention discloses a plugging umbrella for an underwater hole opening of a ship cabin, which comprises an umbrella top, a hollow umbrella tube, a centralized control system and a first pneumatic locking device, wherein the top end of the hollow umbrella tube is fixedly connected with the middle part of the umbrella top, the two ends of the hollow umbrella tube are closed, the centralized control system is arranged in the ship cabin, a rectangular groove is formed in the side wall of the umbrella tube, the top end of the side wall of the umbrella tube is movably connected with the first pneumatic locking device, the bottom end of the side wall of the umbrella tube is movably connected with a second pneumatic locking device, the bottom end of the inside of the umbrella tube is provided with a driving device, the top end of the driving device is fixedly connected with a hollow ejector rod which is in threaded connection with the side wall of the umbrella tube through the rectangular groove, the umbrella top comprises an umbrella cover, umbrella ribs, the side walls of which are fixedly connected with the inner wall of the umbrella cover, and a plurality of umbrella struts, the umbrella struts of which one ends are movably connected with the umbrella ribs and have the same length, and the other ends of the umbrella struts are movably connected with the ejector rod, wherein the first pneumatic locking device and the second pneumatic locking device are electrically connected with the centralized control system.
The invention discloses a plugging umbrella for an underwater broken hole of a cabin.
The invention discloses a plugging umbrella for an underwater broken hole of a cabin, wherein an umbrella cover is made of high-strength fiber cloth.
The invention discloses a plugging umbrella for an underwater broken hole of a cabin.
The invention discloses a plugging umbrella for an underwater hole opening of a cabin.
The invention discloses a plugging umbrella for an underwater hole opening of a cabin.
The invention discloses a plugging umbrella for a cabin underwater hole opening, wherein the bottom end of a push rod is fixedly connected with a motor, and the motor is electrically connected with a centralized control system.
The invention discloses a plugging umbrella for a cabin underwater hole opening, which comprises a first pneumatic locking device, a second pneumatic locking device and a centralized control system, wherein the first pneumatic locking device comprises a first micro cylinder and a first locking device, the input end of the first locking device is connected with the output end of the first micro cylinder through a first electromagnetic valve, the second pneumatic locking device comprises a second micro cylinder and a second locking device, the input end of the second locking device is connected with the output end of the second micro cylinder through a second electromagnetic valve, and the first electromagnetic valve and the second electromagnetic valve are respectively and electrically connected with the centralized control system.
The invention discloses a use method of a plugging umbrella for a cabin underwater broken hole, which comprises the following steps:
s1, when the umbrella is opened, the top end of the plugging umbrella is arranged outside a broken hole of a cabin, the centralized control system controls the first pneumatic locking device and the second pneumatic locking device to be closed, a push rod arranged at the bottom of the second pneumatic locking device moves towards the top of an umbrella pipe through high-strength spring force, a plurality of umbrella struts movably connected with empty slots arranged on the outer wall of a bearing plate drive umbrella ribs to open an umbrella cover, when the push rod moves to the top of the first pneumatic locking device, the umbrella ribs drive the umbrella cover to be completely opened, the first pneumatic locking device is controlled to be opened, the push rod is fixed at the top of the first pneumatic locking device, and the umbrella cover is fixed at the outer side of the cabin wall through water pressure;
and S2, when the umbrella is folded, the centralized control system controls the first pneumatic locking device to be closed, then controls the motor to work so as to drive the ejector rod to move towards the bottom end of the umbrella pipe, and a plurality of umbrella struts movably connected with the empty slots arranged on the outer wall of the basin drive the umbrella ribs to enable the umbrella to be folded towards recycling, and when the basin on the top end of the ejector rod moves to the bottom of the second pneumatic locking device, the second pneumatic locking device is controlled to be opened, and the ejector rod is fixed at the bottom of the second pneumatic locking device.
By adopting the technical scheme disclosed by the invention, the side wall of the umbrella tube is provided with a rectangular groove, the two ends of the side wall of the umbrella tube are respectively fixedly connected with a first pneumatic locking device and a second pneumatic locking device, the bottom end of the inside of the umbrella tube is provided with a driving device, the top end of the driving device is fixedly connected with a hollow ejector rod movably connected with the side wall of the umbrella tube through the rectangular groove, the umbrella top comprises an umbrella cover, umbrella ribs with a plurality of side walls fixedly connected with the inner wall of the umbrella cover and a plurality of umbrella struts with one ends movably connected with the plurality of umbrella ribs and the same length, the other ends of the umbrella struts are movably connected with the ejector rod, the first pneumatic locking device and the second pneumatic locking device are electrically connected with a centralized control system, when a hole is formed in an underwater cabin, the first pneumatic locking device and the second pneumatic locking device are controlled to be closed through the centralized control system, the high-strength spring drives the ejector rod to move to the top of the first pneumatic locking device to control the first pneumatic locking device to be opened after the ejector rod moves to the top of the umbrella pipe, the umbrella support drives the umbrella ribs to stretch out, when the cabin wall is placed on the water surface, the first pneumatic locking device is controlled to be closed, the motor drives the ejector rod to move to the bottom of the second pneumatic locking device, the second pneumatic locking device is controlled to be opened, the umbrella support drives the umbrella ribs to be closed, the device is simple in structure and easy to operate, the centralized control system is operated, automatic operation is realized, timely response is performed, time and labor are saved, the labor is reduced, and potential safety hazards caused by manual operation are avoided.
Drawings
The contents expressed in the drawings of the present specification and the marks in the drawings are briefly described as follows:
FIG. 1 is a cross-sectional view of a plugging umbrella for a cabin underwater hole;
the labels in the above figures are: 1. an umbrella tube; 2. a centralized control system; 3. rectangular grooves; 4. a first locking device; 5. a second locking device; 6. a high-strength spring; 7. an umbrella cover; 8. umbrella ribs; 9. an umbrella support; 10. a push rod; 11. a bearing plate; 12. a motor; 13. a hollow groove; 14. a first micro cylinder; 15. a first electromagnetic valve; 16. a second micro cylinder; 17. and a second electromagnetic valve.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
FIG. 1 is a cross-sectional view of a plugging umbrella for a cabin underwater hole, as shown in:
the invention discloses a plugging umbrella for an underwater hole opening of a ship cabin, which comprises an umbrella top, a hollow umbrella tube 1, a centralized control system 2 and a first pneumatic locking device, wherein the top end of the hollow umbrella tube 1 is fixedly connected with the middle part of the umbrella top, two ends of the hollow umbrella tube are closed, the centralized control system 2 is arranged in the ship cabin, the side wall of the umbrella tube 1 is provided with a rectangular groove 2, the top end of the side wall of the umbrella tube 1 is movably connected with the first pneumatic locking device, the bottom end of the side wall is movably connected with a second pneumatic locking device, the bottom end of the inside of the umbrella tube 1 is provided with a driving device, the top end of the driving device is fixedly connected with a hollow ejector rod 10 which is in threaded connection with the side wall of the umbrella tube 1 through the rectangular groove 3, the umbrella top comprises an umbrella cover 7, umbrella ribs 8, one ends of the umbrella ribs 9 are movably connected with the inner walls of the umbrella cover 7, and a plurality of umbrella struts 9 with the same length, and the other ends of the umbrella struts 9 are movably connected with the ejector rod 10, and the first pneumatic locking device and the second pneumatic locking device are electrically connected with the centralized control system 2.
The driving device is arranged as a high-strength spring 6, the bottom end of the high-strength spring 6 is fixedly connected with the bottom end of the umbrella tube 1, and one side of the top end is fixedly connected with the ejector rod 10 through the rectangular groove 3.
The umbrella cover 7 is made of high-strength fiber cloth.
The top of a hollow ejector rod 10 penetrating into the umbrella tube 1 is fixedly connected with a hollow bearing plate 11, a plurality of empty slots 13 are formed in the outer wall of the bearing plate 11 at equal intervals, and the ejector rod 10 can slide on the side wall of the umbrella tube 1.
The umbrella ribs 8 are arranged into a plurality of groups of stainless steel pipes which are uniformly distributed around the center of the umbrella cover 7 and have equal lengths.
One end of the umbrella support 9 is movably connected with the umbrella ribs 8, and the other end of the umbrella support 9 is movably connected with the empty slots 13, wherein the number of the empty slots 13, the number of the umbrella ribs 8 and the number of the umbrella support 9 are equal, and when the umbrella cover 7 is opened, the included angles between the umbrella ribs 8 which are symmetrically arranged are obtuse angles.
The bottom end of the ejector rod 10 is fixedly connected with a motor 12, and the motor 12 is electrically connected with the centralized control system 2.
The first pneumatic locking device comprises a first micro cylinder 14 and a first locking device 4, the input end of the first locking device is connected with the output end of the first micro cylinder 14 through a first electromagnetic valve 15, the second pneumatic locking device comprises a second micro cylinder 16 and a second locking device 5, the input end of the second locking device is connected with the output end of the second micro cylinder 16 through a second electromagnetic valve 17, and the first electromagnetic valve 15 and the second electromagnetic valve 16 are respectively and electrically connected with the centralized control system 2
When the umbrella is opened, the top of the umbrella is arranged outside a broken hole of a cabin, the centralized control system 2 controls the first pneumatic locking device and the second pneumatic locking device to be closed, a push rod 10 arranged at the bottom of the second pneumatic locking device moves towards the top of the umbrella tube 1 through the elasticity of a high-strength spring 6, a plurality of umbrella struts 9 movably connected with empty slots 13 arranged on the outer wall of a bearing plate 11 drive umbrella ribs 8 to open umbrella covers, when the push rod 10 moves to the top of the first pneumatic locking device, the umbrella ribs 8 drive the umbrella covers 7 to be fully stretched out, the first pneumatic locking device is controlled to be opened, the push rod 10 is fixed at the top of the first pneumatic locking device, and the umbrella covers 7 are fixed at the outer side of a bulkhead through water pressure;
when the umbrella is folded, the centralized control system 2 controls the first pneumatic locking device to be closed, then controls the motor 12 to work so as to drive the ejector rod 10 to move towards the bottom end of the umbrella tube 1, and a plurality of umbrella struts 9 movably connected with empty slots 13 arranged on the outer wall of the basin 11 drive the umbrella ribs 8 to enable the umbrella cover 7 to be recovered, and when the basin 11 at the top end of the ejector rod 10 moves to the bottom of the second pneumatic locking device, the second pneumatic locking device is controlled to be opened, and the ejector rod 10 is fixed at the bottom of the second pneumatic locking device.
By adopting the technical scheme disclosed by the invention, a rectangular groove 3 is formed in the side wall of the umbrella tube 1, a first pneumatic locking device and a second pneumatic locking device are respectively fixedly connected at two ends of the side wall of the umbrella tube 1, a driving device is arranged at the bottom end inside the umbrella tube 1, the top end of the driving device is fixedly connected with a hollow ejector rod 10 movably connected to the side wall of the umbrella tube 1 through the rectangular groove 3, the umbrella top comprises an umbrella cover 7, umbrella ribs 8 with a plurality of side walls fixedly connected to the inner wall of the umbrella cover 7 and a plurality of umbrella supports 9 with one ends movably connected with the plurality of umbrella ribs 8 and equal in length, the other ends of the umbrella supports 9 are movably connected with the ejector rod 10, the first pneumatic locking device and the second pneumatic locking device are electrically connected with the centralized control system 2, and when an opening is formed in an underwater cabin, the first pneumatic locking device and the second pneumatic locking device are controlled to be closed through the centralized control system 2, the high-strength spring 6 drives the ejector rod 10 to move to the top of the first pneumatic locking device towards the top of the umbrella pipe 1, then the first pneumatic locking device is controlled to be opened, the umbrella support 9 drives the umbrella rib 8 to stretch out, when the cabin wall is placed on the water surface, the first pneumatic locking device is controlled to be closed, the motor 12 drives the ejector rod 10 to move to the bottom of the second pneumatic locking device towards the bottom of the umbrella pipe 1, the second pneumatic locking device is controlled to be opened, the umbrella support 9 drives the umbrella rib 8 to be folded, the device is simple in structure and easy to operate, the centralized control system 2 is operated, automatic operation is achieved, timely response is achieved, time and labor are saved, and potential safety hazards caused by manual operation are avoided.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the invention are adopted, all within the scope of the invention.
Claims (9)
1. A plugging umbrella for broken entrance to a cave under cabin water, its characterized in that: the novel umbrella comprises an umbrella top, a hollow umbrella tube, a central control system and a rectangular groove, wherein the top end of the hollow umbrella tube is fixedly connected with the middle part of the umbrella top, the two ends of the hollow umbrella tube are closed, the central control system is arranged in a ship cabin, the side wall of the umbrella tube is provided with the rectangular groove, the top end of the side wall of the umbrella tube is movably connected with a first pneumatic locking device, the bottom end of the side wall of the umbrella tube is movably connected with a second pneumatic locking device, the bottom end of the inside of the umbrella tube is provided with a driving device, the top end of the driving device is fixedly connected with a hollow ejector rod on the side wall of the umbrella tube through the rectangular groove, the umbrella top comprises an umbrella cover, a plurality of side walls are fixedly connected with umbrella ribs on the inner wall of the umbrella cover, one end of the umbrella ribs are movably connected with the plurality of umbrella ribs, the umbrella struts are equal in length, the other end of each umbrella strut is movably connected with the ejector rod, and the first pneumatic locking device and the second pneumatic locking device are electrically connected with the central control system.
2. A plugging umbrella for a cabin underwater opening of a ship according to claim 1, wherein: the driving device is a high-strength spring, the bottom end of the high-strength spring is fixedly connected with the bottom end of the umbrella tube, and one side of the top end of the high-strength spring is fixedly connected with the ejector rod through a rectangular groove.
3. A plugging umbrella for a cabin underwater opening of a ship according to claim 1, wherein: the umbrella cover is made of high-strength fiber cloth.
4. A plugging umbrella for a cabin underwater opening of a ship according to claim 1, wherein: the umbrella tube is characterized in that a hollow supporting disc is fixedly connected to the top of a top hollow ejector rod, a plurality of empty slots are formed in the outer wall of the supporting disc at equal intervals, and the ejector rod can slide on the side wall of the umbrella tube.
5. A plugging umbrella for a cabin underwater opening of a ship according to claim 1, wherein: the umbrella ribs are arranged into a plurality of groups of stainless steel pipes which are uniformly distributed around the center of the umbrella surface and have equal lengths.
6. A plugging umbrella for a cabin underwater opening of a ship in accordance with claim 4, wherein: one end of the umbrella support is movably connected with the umbrella ribs, and the other end of the umbrella support is movably connected with the empty slots, wherein the number of the empty slots, the number of the umbrella ribs and the number of the umbrella support are equal, and when the umbrella cover is opened, the included angles among the symmetrically arranged umbrella ribs are obtuse angles.
7. A plugging umbrella for a cabin underwater opening of a ship according to claim 1, wherein: and the bottom end of the ejector rod is fixedly connected with a motor, and the motor is electrically connected with the centralized control system.
8. A plugging umbrella for a cabin underwater opening of a ship according to claim 1, wherein: the first pneumatic locking device comprises a first micro cylinder and a first locking device, the input end of the first locking device is connected with the output end of the first micro cylinder through a first electromagnetic valve, the second pneumatic locking device comprises a second micro cylinder and a second locking device, the input end of the second locking device is connected with the output end of the second micro cylinder through a second electromagnetic valve, and the first electromagnetic valve and the second electromagnetic valve are respectively and electrically connected with the centralized control system.
9. A method of using a plugging umbrella for a cabin underwater opening according to any one of claims 1 to 8, comprising the steps of:
s1, when the umbrella is opened, the top end of the plugging umbrella is arranged outside a broken hole of a cabin, the centralized control system controls the first pneumatic locking device and the second pneumatic locking device to be closed, a push rod arranged at the bottom of the second pneumatic locking device moves towards the top of an umbrella pipe through high-strength spring force, a plurality of umbrella struts movably connected with empty slots arranged on the outer wall of a bearing plate drive umbrella ribs to open an umbrella cover, when the push rod moves to the top of the first pneumatic locking device, the umbrella ribs drive the umbrella cover to be completely opened, the first pneumatic locking device is controlled to be opened, the push rod is fixed at the top of the first pneumatic locking device, and the umbrella cover is fixed at the outer side of the cabin wall through water pressure;
and S2, when the umbrella is folded, the centralized control system controls the first pneumatic locking device to be closed, then controls the motor to work so as to drive the ejector rod to move towards the bottom end of the umbrella pipe, and a plurality of umbrella struts movably connected with the empty slots arranged on the outer wall of the basin drive the umbrella ribs to enable the umbrella to be folded towards recycling, and when the basin on the top end of the ejector rod moves to the bottom of the second pneumatic locking device, the second pneumatic locking device is controlled to be opened, and the ejector rod is fixed at the bottom of the second pneumatic locking device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020100449285 | 2020-01-16 | ||
| CN202010044928.5A CN111098992A (en) | 2020-01-16 | 2020-01-16 | Leaking stoppage umbrella for underwater hole breaking opening of cabin and using method of leaking stoppage umbrella |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111924060A CN111924060A (en) | 2020-11-13 |
| CN111924060B true CN111924060B (en) | 2024-02-09 |
Family
ID=70426245
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010044928.5A Withdrawn CN111098992A (en) | 2020-01-16 | 2020-01-16 | Leaking stoppage umbrella for underwater hole breaking opening of cabin and using method of leaking stoppage umbrella |
| CN202010964190.4A Active CN111924060B (en) | 2020-01-16 | 2020-09-15 | Plugging umbrella for underwater broken hole of cabin and use method thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010044928.5A Withdrawn CN111098992A (en) | 2020-01-16 | 2020-01-16 | Leaking stoppage umbrella for underwater hole breaking opening of cabin and using method of leaking stoppage umbrella |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN111098992A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113247200A (en) * | 2021-06-16 | 2021-08-13 | 浙江铭品海工智能科技有限公司 | Multifunctional leakage blocking device |
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| FR2259009A1 (en) * | 1974-01-25 | 1975-08-22 | Olivier Jean | Cover for opening in ship's hull - has umbrella like frame with apertured tubular stem for sealing compound |
| CN2098461U (en) * | 1991-03-01 | 1992-03-11 | 吕加平 | Back-stopping leak stopper |
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| KR20170116596A (en) * | 2017-09-27 | 2017-10-19 | 최진서 | Apparatus For Blocking Hole Of Plate For Emergency |
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2020
- 2020-01-16 CN CN202010044928.5A patent/CN111098992A/en not_active Withdrawn
- 2020-09-15 CN CN202010964190.4A patent/CN111924060B/en active Active
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|---|---|---|---|---|
| GB188561A (en) * | 1921-12-08 | 1922-11-16 | Naamlooze Vennootschap Fabriek | Apparatus for stopping holes, more particularly holes made by projectiles in the ship walls |
| FR2259009A1 (en) * | 1974-01-25 | 1975-08-22 | Olivier Jean | Cover for opening in ship's hull - has umbrella like frame with apertured tubular stem for sealing compound |
| CN2098461U (en) * | 1991-03-01 | 1992-03-11 | 吕加平 | Back-stopping leak stopper |
| CN2108055U (en) * | 1991-05-08 | 1992-06-24 | 许良才 | Leak-stopping device for vessel |
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| KR20170116596A (en) * | 2017-09-27 | 2017-10-19 | 최진서 | Apparatus For Blocking Hole Of Plate For Emergency |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111098992A (en) | 2020-05-05 |
| CN111924060A (en) | 2020-11-13 |
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