CN108891555B - Sealing device for plugging sea hole - Google Patents
Sealing device for plugging sea hole Download PDFInfo
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- CN108891555B CN108891555B CN201811047607.XA CN201811047607A CN108891555B CN 108891555 B CN108891555 B CN 108891555B CN 201811047607 A CN201811047607 A CN 201811047607A CN 108891555 B CN108891555 B CN 108891555B
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- sea
- hole
- door cover
- pie
- shaped air
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- 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
- B63B43/24—Arrangements of watertight doors in bulkheads
-
- 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
- B63C1/00—Dry-docking of vessels or flying-boats
- B63C1/02—Floating docks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The invention relates to a sealing device for plugging sea holes. The device includes the water seal door closure, be equipped with first through-hole and second through-hole on the water seal door closure, peg graft in the first through-hole and have hook screw subassembly, hook screw subassembly includes long screw rod, long screw rod one end is connected with the crotch that articulates with the sea Kong Nashun grid, the other end has the nut that articulates soon, be equipped with pie gasbag on the water seal door closure surface towards the sea hole, pie gasbag edge extends to water seal door closure edge outside, be equipped with the through-hole that is convenient for long screw rod alternate on the pie gasbag, be connected with on the pie gasbag surface towards water seal door closure and fill the gassing hose, it extends to water seal door closure nut one side to fill the gassing hose through the second through-hole. Due to the existence of the cake-shaped air bags, operators can slowly submerge the water seal door cover to the sea-going hole by utilizing the buoyancy of the cake-shaped air bags, so that the labor is saved, and meanwhile, the deflated cake-shaped air bags can serve as sealing gaskets to ensure the sealing between the water seal door cover and the sea-going hole.
Description
Technical Field
The invention relates to the technical field of sea door sealing devices, in particular to a sealing device for sealing sea holes.
Background
The patent with the name of sealing watertight device under water of the sea door of the floating dock is disclosed in the existing China patent database, the application number of the patent is 20090039083. X, the application date of the patent is 2009.05.13, the grant notice number of the patent is CN201400299, the grant notice date of the patent is 2010.02.10, the device comprises a dock body, a grille, a water-tight door cover and a hook screw assembly, the water-tight door cover is arranged on the outer side of the sea door of the dock body, a rubber sealing gasket is inlaid on the inner side edge of the water-tight door cover, the outer edge of the rubber sealing gasket protrudes out of the inner side edge of the water-tight door cover, the hook screw assembly comprises a hook screw, a sealing ring, an inner cone gasket and a screw cap, the hook screw stretches into from a Kong Zhongshun grille gap of the end face of the water-tight door cover and hooks a spoke by 90 degrees, and the tail of the hook screw is sequentially provided with the sealing ring, the inner cone gasket and the screw cap is screwed. The defects are that: when the sacrificial anode, the purge pipe, the marine organism preventing device, the stop valve of the vent pipe and the first valve of the submarine door in the submarine door need to be replaced or overhauled, and the paint in the submarine door needs to be checked and repaired, the ship needs to be repaired in a dock, the device is hoisted to seal the sea hole, the dock period is needed to be shortened when the ship enters the dock, and the marine organism preventing device is complex in operation and high in cost.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a sealing device for plugging sea holes, which is quick to maintain and low in maintenance cost.
In order to achieve the above purpose, the invention provides a sealing device for sealing sea holes, which adopts the following technical scheme:
the utility model provides a sealing device for shutoff sea hole, including the water seal door closure that is used for shutoff sea hole, be equipped with first through-hole on the water seal door closure that is opposite to sea hole, peg graft in the first through-hole and have hook screw subassembly, hook screw subassembly includes long screw rod, long screw rod one end is connected with the crotch that articulates with the sea Kong Nashun grid, the other end has connect the nut soon, be equipped with cake form gasbag on the water seal door closure surface towards sea hole, cake form gasbag edge extends to water seal door closure edge outside, be equipped with the through-hole that is convenient for long screw rod alternate on the cake form gasbag, be connected with the gassing hose towards the cake form gasbag surface of water seal door closure, seted up the second through-hole on the water seal door closure that corresponds with the gassing hose, the gassing hose extends to water seal door closure nut one side through the second through-hole, it is contradicted on the inner wall of second through-hole to fill gassing hose outer wall, sealed second through-hole.
When the ship is in operation, the inflatable hose is used for inflating the pie-shaped air bags, so that the pie-shaped air bags are ensured to float in the sea, an operator grabs the water-sealed air bags to submerge, the air is exhausted through the inflatable hose in the submerging process, the water-sealed air bags slowly submerge, the air is stopped when the water-sealed air bags submerge to the sea-going hole, the hooks extend into the gaps between the grids, the hooks hook the grids, then the nuts are turned, the water-sealed air bags are pressed on the sea-going hole, the pie-shaped air bags are pressed on the ship body at the edge of the sea-going hole, the inflatable hose is used for exhausting, the pie-shaped air bags form a rubber sealing pad, and the water-sealed air bags are pressed on the sea-going hole by the rotating nuts, so that the sea-going hole is blocked.
Compared with the prior art, the invention has the beneficial effects that: due to the existence of the cake-shaped air bags, operators can slowly submerge the water seal door cover to the sea-going hole by utilizing the buoyancy of the cake-shaped air bags, so that the labor is saved, and meanwhile, the deflated cake-shaped air bags can serve as sealing gaskets to ensure the sealing between the water seal door cover and the sea-going hole.
The edge of the surface of the water seal door cover facing the pie-shaped air bag is provided with an annular rubber sealing ring. The annular rubber sealing ring is in contact with the pie-shaped air bag, so that the water sealing door cover is prevented from being directly pressed on the pie-shaped air bag to damage the pie-shaped air bag, and meanwhile, the sealing effect is improved.
The edge of the surface of the water seal door cover facing the cake-shaped air bag is provided with an annular groove, and the annular rubber seal ring is clamped in the annular groove. The annular groove effectively fixes the annular rubber sealing ring.
The long screw rod between the cake-shaped air bag and the hook is sleeved with a pressing plate in a clearance way, and the outer edge of the pressing plate is positioned in the sea-going hole. The pressing plate effectively prevents the cake-shaped air bags from being damaged due to direct contact between the parallel grating and the cake-shaped air bags.
The nut is fixedly connected with an outwards protruding operating rod. Due to the existence of the operating rod, an operator can turn the nut by hand, so that the tool is prevented from being submerged with the operator.
The surface of the water sealing door cover positioned at one side of the nut is provided with a handle. The handle is convenient for an operator to grasp the water seal door cover.
And a sealing ring and an inner cone pad are sleeved on the long screw rod positioned between the nut and the water sealing door cover.
The hook screw assembly is provided with at least two. The rotation of the pie-shaped air bag is avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of the pie-shaped air bag of fig. 1.
The door comprises a 1 water seal door cover, a 101 first through hole, a 102 second through hole, a 103 annular rubber sealing ring, a 104 annular groove, a 105 handle, a 2 hook-shaped screw assembly, a 201 long screw, a 202 hook, a 203 nut, a 204 operating rod, a 205 sealing ring, a 206 inner conical pad, a 3 sea-going hole, a 301 along grid, a 4-cake-shaped air bag, a 401 through hole, a 402 inflation and deflation hose and a 5 pressing plate.
Detailed Description
As shown in fig. 1-2, the sealing device for sealing sea holes comprises a water sealing door cover 1 for sealing sea holes 3, a first through hole 101 is arranged on the water sealing door cover 1 opposite to the sea holes 3, a hook-shaped screw assembly 2 is inserted into the first through hole 101, the hook-shaped screw assembly 2 comprises a long screw 201, one end of the long screw 201 is connected with a hook 202 which is connected with a grid 301 in the sea holes 3 in a hanging manner, the other end of the long screw 201 is screwed with a nut 203, and an externally protruding operating rod 204 is fixedly connected to the nut 203. Due to the existence of the operating rod 204, an operator can freely turn the nut 203 by hand, avoid the portable tool from submerging, the long screw 201 positioned between the nut 203 and the water seal door cover 1 is sleeved with the sealing ring 205 and the inner cone pad 206, the surface of the water seal door cover 1 facing the sea opening 3 is provided with the pie-shaped air bag 4, the edge of the pie-shaped air bag 4 extends to the outer side of the edge of the water seal door cover 1, the pie-shaped air bag 4 is provided with the through hole 401 convenient for the long screw 201 to penetrate, the surface of the pie-shaped air bag 4 facing the water seal door cover 1 is connected with the air charging and discharging hose 402, the water seal door cover 1 corresponding to the air charging and discharging hose 402 is provided with the second through hole 102, the air charging and discharging hose 402 extends to one side of the nut 203 of the water seal door cover 1 through the second through hole 102, the outer wall of the air charging and discharging hose 402 is abutted against the inner wall of the second through hole 102, the long screw 201 positioned between the pie-shaped air bag 4 and the bent hook 202 is sleeved with the pressing plate 5, and the outer edge of the pressing plate 5 is positioned in the sea opening 3. The pressing plate 5 effectively prevents the cake-shaped air bag 4 from being damaged due to the direct contact between the grid 301 and the cake-shaped air bag 4, and the edge of the surface of the water seal door cover 1 facing the cake-shaped air bag 4 is provided with an annular rubber sealing ring 103. The annular rubber sealing ring 103 is in contact with the pie-shaped air bag 4, so that the phenomenon that the pie-shaped air bag 4 is damaged due to the fact that the water sealing door cover 1 is directly pressed on the pie-shaped air bag 4 is avoided, meanwhile, the sealing effect is improved, an annular groove 104 is formed in the edge of the surface of the water sealing door cover 1 facing the pie-shaped air bag 4, and the annular rubber sealing ring 103 is clamped in the annular groove 104. The annular groove 104 effectively fixes the annular rubber sealing ring 103, and the surface of the water sealing door cover 1 positioned on one side of the nut 203 is provided with a handle 105. The handle 105 is convenient for an operator to grasp the water seal door cover 1, and the hook screw assembly 2 is provided with at least two. The rotation of the pie-shaped air-bag 4 is avoided.
During operation, the inflatable hose 402 inflates the pie-shaped air bags 4, the pie-shaped air bags 4 are ensured to enable the water seal door cover 1 to float in the sea, an operator grabs the water seal door cover 1 to submerge, in the submerging process, the air is exhausted through the inflatable hose 402, the operator slowly submerges, when the operator submerges to the sea opening 3, the air is stopped, the hook 202 stretches into a gap between the parallel grids 301, the hook 202 hooks the parallel grids 301, then the knob nut 203 presses the water seal door cover 1 on the sea opening 3, the pie-shaped air bags 4 are pressed on the ship body at the edge of the sea opening 3, the inflatable hose 402 exhausts to enable the pie-shaped air bags 4 to form a rubber sealing pad, and the rotary nut 203 presses the water seal door cover 1 on the sea opening 3 to seal the sea opening 3.
The invention is not limited to the above embodiments, and based on the technical solution disclosed in the invention, a person skilled in the art may make some substitutions and modifications to some technical features thereof without creative effort according to the technical content disclosed, and all the substitutions and modifications are within the protection scope of the invention.
Claims (8)
1. A sealing device for shutoff sea hole, its characterized in that: the sealing device comprises a water sealing door cover for sealing a sea hole, a first through hole is formed in the water sealing door cover facing the sea hole, a hook-shaped screw assembly is inserted in the first through hole, the hook-shaped screw assembly comprises a long screw rod, one end of the long screw rod is connected with a hook which is connected with a sea Kong Nashun grid in a hanging mode, the other end of the long screw rod is screwed with a nut, a pie-shaped air bag is arranged on the surface of the water sealing door cover facing the sea hole, the edge of the pie-shaped air bag extends to the outer side of the edge of the water sealing door cover, a through hole which is convenient for the long screw rod to penetrate is formed in the pie-shaped air bag, an inflation and deflation hose is connected to the surface of the pie-shaped air bag facing the water sealing door cover, a second through hole is formed in the water sealing door cover corresponding to the inflation and deflation hose, the inflation and deflation hose extends to one side of the nut of the water sealing door cover through the second through hole, the outer wall of the inflation and deflation hose is abutted against the inner wall of the second through hole, and the second through hole is sealed; the inflatable mattress is characterized in that the inflatable hose is used for inflating the pie-shaped air bags, the pie-shaped air bags enable the water seal door cover to float in the sea, an operator grabs the water seal door cover to submerge, in the submerging process, the air is exhausted through the inflatable hose and slowly submerges, when the air submerges to the sea-going hole, the air is stopped from being exhausted, the hooks extend into gaps between the grids, the hooks hook the grids, then the nuts are turned, the water seal door cover is pressed on the sea-going hole, the pie-shaped air bags are pressed on the ship body at the edge of the sea-going hole, the air is exhausted through the inflatable hose, the pie-shaped air bags form a rubber sealing pad, the water seal door cover is pressed on the sea-going hole through the rotation nuts, and the sea-going hole is plugged.
2. A sealing device for plugging a sea opening according to claim 1, wherein: the edge of the surface of the water seal door cover facing the pie-shaped air bag is provided with an annular rubber sealing ring.
3. A sealing device for plugging a sea opening according to claim 2, wherein: the edge of the surface of the water seal door cover facing the cake-shaped air bag is provided with an annular groove, and the annular rubber seal ring is clamped in the annular groove.
4. A sealing device for plugging a sea opening according to claim 3, wherein: the long screw rod between the cake-shaped air bag and the hook is sleeved with a pressing plate in a clearance way, and the outer edge of the pressing plate is positioned in the sea-going hole.
5. A sealing device for plugging a sea opening according to claim 4, wherein: the nut is fixedly connected with an outwards protruding operating rod.
6. A sealing device for plugging a sea opening according to claim 5 wherein: the surface of the water sealing door cover positioned at one side of the nut is provided with a handle.
7. A sealing device for plugging a sea opening according to claim 6, wherein: and a sealing ring and an inner cone pad are sleeved on the long screw rod positioned between the nut and the water sealing door cover.
8. A sealing device for plugging a sea opening according to claim 7, wherein: the hook screw assembly is provided with at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047607.XA CN108891555B (en) | 2018-09-10 | 2018-09-10 | Sealing device for plugging sea hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047607.XA CN108891555B (en) | 2018-09-10 | 2018-09-10 | Sealing device for plugging sea hole |
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| Publication Number | Publication Date |
|---|---|
| CN108891555A CN108891555A (en) | 2018-11-27 |
| CN108891555B true CN108891555B (en) | 2023-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811047607.XA Active CN108891555B (en) | 2018-09-10 | 2018-09-10 | Sealing device for plugging sea hole |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109747777A (en) * | 2018-12-05 | 2019-05-14 | 大连中远海运重工有限公司 | Sealing device for ultra-deep-water marine worker operation ship suction box |
| CN110077551B (en) * | 2019-05-17 | 2024-01-16 | 张睿 | Automatic side-turning prevention mechanism for ship |
| CN113665759B (en) * | 2021-07-21 | 2022-10-14 | 上海外高桥造船有限公司 | Plugging device and ship |
| CN114889762A (en) * | 2022-03-30 | 2022-08-12 | 广州文冲船厂有限责任公司 | Outboard pipe plugging tool, plugging method and method for replacing sea valve on water |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB429540A (en) * | 1933-04-08 | 1935-05-31 | Kidde & Co Walter | Improvements in and relating to inflatable flotation devices |
| GB1169295A (en) * | 1967-11-09 | 1969-11-05 | Appledore Shipbuilders | Improvements in or relating to Ship's Docks |
| CN2067250U (en) * | 1990-04-24 | 1990-12-12 | 张鸿翎 | Leak stopping caldron for vessels |
| CA2183318A1 (en) * | 1994-02-14 | 1995-08-24 | Paul Raymond Bosher | Improvements in or relating to a method of transporting or storing perishable produce |
| JP2005239142A (en) * | 2004-02-25 | 2005-09-08 | Doo Yang Co Ltd | Sea chest seawater inflow hole sheathing board of vessel |
| BRPI0703637A2 (en) * | 2007-08-10 | 2009-04-07 | Petroleo Brasileiro Sa | sea box lid system and automated sea box lid system |
| CN201400299Y (en) * | 2009-05-13 | 2010-02-10 | 中船澄西船舶修造有限公司 | Floating dock sea-cock underwater sealing watertight device |
| CN201587531U (en) * | 2009-12-04 | 2010-09-22 | 天津远捷海洋工程有限公司 | Sealing plug for sea chests |
| KR20120016471A (en) * | 2010-08-16 | 2012-02-24 | 삼성중공업 주식회사 | Combination for sea chest hole of vessel |
| DE102010020753A1 (en) * | 2010-05-17 | 2013-03-28 | Franz Butschek | Seal valve for oil drilling rig used in offshore construction work, has inflatable airbag that is secured in outer pipe and automatically blown up by compressed air tank operation to completely seal cavity between inner and outer pipes |
| CN204659988U (en) * | 2015-05-25 | 2015-09-23 | 烟台中集来福士海洋工程有限公司 | Marine engineering equipment and suction box sealing arrangement thereof |
| CN205938062U (en) * | 2016-07-15 | 2017-02-08 | 永嘉县一成石化机械有限公司 | Sea valve |
| CN207389463U (en) * | 2017-06-13 | 2018-05-22 | 广东中远海运重工有限公司 | A kind of hole baffle device for water peculiar to vessel |
| CN207830555U (en) * | 2018-02-05 | 2018-09-07 | 珠海浩翔机械有限公司 | A kind of stern tube shaft water sealing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6772843B2 (en) * | 2000-12-05 | 2004-08-10 | Baker Hughes Incorporated | Sea-floor pressure head assembly |
| US8739724B2 (en) * | 2012-05-03 | 2014-06-03 | Dean Richard Howard | Inflatable dry-dock |
-
2018
- 2018-09-10 CN CN201811047607.XA patent/CN108891555B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB429540A (en) * | 1933-04-08 | 1935-05-31 | Kidde & Co Walter | Improvements in and relating to inflatable flotation devices |
| GB1169295A (en) * | 1967-11-09 | 1969-11-05 | Appledore Shipbuilders | Improvements in or relating to Ship's Docks |
| CN2067250U (en) * | 1990-04-24 | 1990-12-12 | 张鸿翎 | Leak stopping caldron for vessels |
| CA2183318A1 (en) * | 1994-02-14 | 1995-08-24 | Paul Raymond Bosher | Improvements in or relating to a method of transporting or storing perishable produce |
| JP2005239142A (en) * | 2004-02-25 | 2005-09-08 | Doo Yang Co Ltd | Sea chest seawater inflow hole sheathing board of vessel |
| BRPI0703637A2 (en) * | 2007-08-10 | 2009-04-07 | Petroleo Brasileiro Sa | sea box lid system and automated sea box lid system |
| CN201400299Y (en) * | 2009-05-13 | 2010-02-10 | 中船澄西船舶修造有限公司 | Floating dock sea-cock underwater sealing watertight device |
| CN201587531U (en) * | 2009-12-04 | 2010-09-22 | 天津远捷海洋工程有限公司 | Sealing plug for sea chests |
| DE102010020753A1 (en) * | 2010-05-17 | 2013-03-28 | Franz Butschek | Seal valve for oil drilling rig used in offshore construction work, has inflatable airbag that is secured in outer pipe and automatically blown up by compressed air tank operation to completely seal cavity between inner and outer pipes |
| KR20120016471A (en) * | 2010-08-16 | 2012-02-24 | 삼성중공업 주식회사 | Combination for sea chest hole of vessel |
| CN204659988U (en) * | 2015-05-25 | 2015-09-23 | 烟台中集来福士海洋工程有限公司 | Marine engineering equipment and suction box sealing arrangement thereof |
| CN205938062U (en) * | 2016-07-15 | 2017-02-08 | 永嘉县一成石化机械有限公司 | Sea valve |
| CN207389463U (en) * | 2017-06-13 | 2018-05-22 | 广东中远海运重工有限公司 | A kind of hole baffle device for water peculiar to vessel |
| CN207830555U (en) * | 2018-02-05 | 2018-09-07 | 珠海浩翔机械有限公司 | A kind of stern tube shaft water sealing device |
Non-Patent Citations (2)
| Title |
|---|
| 水面舰船潜水检查作业实施方法;江新 黄祥科;《第五届中国国际救捞论坛论文集》;全文 * |
| 船舶舱底水预处理优化设计;朱晓强 姜明文 冯长顺;《上海船舶运输科学研究所学报》;全文 * |
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| CN108891555A (en) | 2018-11-27 |
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