CN113859432A - Embedded hatch structure - Google Patents
Embedded hatch structure Download PDFInfo
- Publication number
- CN113859432A CN113859432A CN202111174498.XA CN202111174498A CN113859432A CN 113859432 A CN113859432 A CN 113859432A CN 202111174498 A CN202111174498 A CN 202111174498A CN 113859432 A CN113859432 A CN 113859432A
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- CN
- China
- Prior art keywords
- hatch
- hoisting
- cover plate
- blocking
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000903 blocking effect Effects 0.000 claims abstract description 48
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 12
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 12
- 241001330002 Bambuseae Species 0.000 claims abstract description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 12
- 239000011425 bamboo Substances 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 210000005069 ears Anatomy 0.000 claims 2
- 230000037431 insertion Effects 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
- B63B19/12—Hatches; Hatchways
- B63B19/14—Hatch covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
- B63B19/12—Hatches; Hatchways
- B63B19/28—Other safety means
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention provides an embedded type hatch structure, and relates to the field of hatch structures. The embedded hatch structure comprises a cabin deck and a hatch cover plate, wherein a hoisting hatch is arranged on the cabin deck, a blocking edge is convexly arranged at the inner edge of the hoisting hatch and is positioned at the lower side of the cabin deck; the hatch cover plate can be detachably arranged at the position of a hoisting hatch, the blocking edge is matched with the hatch cover plate in a blocking way, and a locking structure is also arranged between the blocking edge and the hatch cover plate; the hoisting hatch is also internally provided with a plurality of inserting cylinders which are circumferentially arranged at intervals around the inner edge of the hoisting hatch, guardrail upright columns can be detachably inserted into the inserting cylinders, and a protective rope is connected between every two adjacent guardrail upright columns; when the locking structure is in a closed state, the guardrail upright post and the inserting cylinder are detached, the hatch cover plate is covered at the hoisting hatch, and the locking structure is fixedly connected between the blocking edge and the hatch cover plate; when hoist and mount state, hatch board and hoist and mount hatch are pulled apart, and the guardrail stand cartridge is in inserting a section of thick bamboo, and the protection rope is connected between two adjacent guardrail stands.
Description
Technical Field
The invention relates to the technical field of hatch structures, in particular to an embedded type hatch structure.
Background
On boats and ships and ocean platform, design has hatch and hatch board structure usually, utilizes the hatch board openable and closeable to install in hatch department, can supply personnel or equipment business turn over after opening, can play waterproof rainproof sealed effect after closing.
If the publication number of CN206358316U is granted and the publication date of granted is 2017.07.28, the chinese utility model discloses a stacked hatch cover suitable for lifting spare parts, and specifically discloses that the stacked hatch cover comprises a first hatch cover, the first hatch cover is detachably and hermetically arranged on a hatch of a ship deck, the first hatch cover is provided with a first hatch, the first hatch is provided with a detachable second hatch cover, and the first hatch cover is also provided with at least two lifting eye plates; the first hatch cover comprises an outer convex panel, the section of the panel is rectangular, and a plurality of mounting holes are respectively formed in four side edges of an opening at the bottom of the panel; a sealing fixing device is arranged in each mounting hole, and the panel is detachably fixed on the deck near the hatch opening in a sealing mode through the sealing fixing device.
The overlapped hatch cover suitable for lifting spare parts in the prior art adopts the first hatch cover to be hermetically installed on the upper side of a deck at a hatch opening, so that the upper surface of the deck is locally raised, the flatness of the whole deck is poor, and corresponding protective measures are lacked when equipment is lifted after the hatch cover is completely opened, so that the danger is high.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide an embedded hatch structure, so as to solve the problems that the existing stacked hatch cover causes a local protrusion on the upper surface of the deck, the flatness of the whole deck is poor, and when the hatch cover is completely opened and equipment is hoisted, corresponding protection measures are not needed, and the danger is high.
The technical scheme of the embedded hatch structure of the invention is as follows:
the embedded hatch structure comprises a cabin deck and a hatch cover plate, wherein a hoisting hatch is arranged on the cabin deck, a blocking edge is convexly arranged at the inner edge of the hoisting hatch, and the blocking edge is positioned at the lower side of the cabin deck;
the hatch cover plate is detachably mounted at the position of the hoisting hatch, the hatch cover plate is in clearance fit with the hoisting hatch, the blocking edge is in blocking fit with the hatch cover plate, and a locking structure is further mounted between the blocking edge and the hatch cover plate;
the hoisting hatch is also internally provided with a plurality of inserting cylinders which are circumferentially arranged at intervals around the inner edge of the hoisting hatch, guardrail upright columns are detachably inserted into the inserting cylinders, and a protective rope is connected between every two adjacent guardrail upright columns;
when the locking structure is in a closed state, the guardrail upright post is detached from the inserting barrel, the hatch cover plate is covered at the hoisting hatch, and the locking structure is fixedly connected between the blocking edge and the hatch cover plate; when the hoist and mount state, the hatch board with hoist and mount hatch is pulled apart, guardrail stand cartridge in insert a section of thick bamboo, just the protection rope is connected in adjacent two between the guardrail stand.
Furthermore, the inner edge of the hoisting hatch is fixedly connected with a peripheral plate, the blocking edges are fixedly connected with the lower part of the inner side of the peripheral plate, and the blocking edges are arranged on the lower side of the cabin deck in a staggered mode.
Furthermore, insert a section of thick bamboo and face the inboard of hoist and mount hatch is installed the ball, the ball is used for rolling the cooperation with the equipment of hoist and mount in-process.
Furthermore, a connecting plate is fixedly arranged on the lower side of the hatch cover plate, the connecting plate protrudes out of the edge of the hatch cover plate, and the connecting plate is matched with the blocking edge.
Furthermore, the downside of connecting plate still is equipped with sealed the pad, sealed pad with keep off the side laminating matching of going up on the edge, the connecting plate with keep off and have seted up the bolt hole on the edge correspondingly, locking structure is the locking bolt, the dress is worn to the locking bolt in the bolt hole of connecting plate with keep off the bolt hole on edge.
Further, coaming and a plurality of strengthening rib in hatch board's downside fixedly connected with, interior coaming encloses to be located hatch board's edge is inboard, and is a plurality of the strengthening rib is latticed arrange in the interior coaming.
Furthermore, still be equipped with the recess on the hatch board, the bottom of recess is located hatch board's downside, just be equipped with the handle in the recess, the handle with the bottom interval arrangement of recess is in order to form the gripping space that supplies the people's hand to stretch into.
Furthermore, a plurality of inserting cylinders are respectively and fixedly connected to the inner sides of the blocking edges, and a baffle is arranged at the bottom of each inserting cylinder and matched with the guardrail upright in a blocking manner in a hoisting state.
Furthermore, be fixed with foraminiferous otic placode on the guardrail stand, be connected with the elasticity turnbuckle on the foraminiferous otic placode of guardrail stand, the tip of protection rope with the elasticity turnbuckle is connected.
Has the advantages that: this bury formula hatch opening structure has adopted the structural design of the removable installation hatch board of hoist and mount hatch opening department and guardrail stand in the cabin deck, when different operating condition, change installation hatch board or guardrail stand can, satisfy the user demand under the different operating mode conditions, use the flexibility better.
When the closed state, the guardrail stand is detached from the inserting barrel, the hatch board sealing cover is arranged at the hoisting hatch opening, the inner edge protruding out of the hoisting hatch opening is blocked, the blocking matching between the blocking edge and the hatch board is achieved, the locking structure is used for enabling the hatch board to reliably seal the hoisting notch, the blocking edge is located on the lower side of the cabin deck, the containing space is reserved for installing the hatch board, the situation that the hatch board sealing cover protrudes out of the upper surface of the cabin deck is guaranteed, the upper surface of the cabin deck is prevented from being locally protruded, and the flatness of the whole deck is higher.
When hoist and mount state, the hatch board is detached with the hoist and mount hatch, makes the cabin deck form uncovered part in hoist and mount hatch department to in the operation of smooth implementation hoisting equipment, guardrail stand cartridge is in inserting a section of thick bamboo, connects the protection rope between the adjacent guardrail stand, has constituted hatch envelope through guardrail stand and protection rope, during personnel fall the hatch when having avoided hoist and mount operation, dismouting convenient operation and protectiveness are good, have reduced the danger in the working process.
Drawings
FIG. 1 is a schematic cross-sectional view of an embedded hatch structure (in a closed state) in an embodiment of the embedded hatch structure of the present invention;
FIG. 2 is a partially enlarged schematic view between the hoist trunk and the trunk deck of FIG. 1;
FIG. 3 is a schematic top view of the hatch cover plate of FIG. 1 installed at a hoist hatch;
FIG. 4 is a schematic front view of the embedded hatch structure (in the hoisted state) in an embodiment of the embedded hatch structure of the present invention;
fig. 5 is a construction diagram for hoisting the embedded hatch structure (in a hoisted state) in the embodiment of the embedded hatch structure of the present invention.
In the figure: 1-cabin deck, 10-hoisting hatch, 11-blocking edge, 12-inserting barrel, 13-peripheral plate and 14-ball;
2-hatch cover plate, 20-inner coaming, 21-reinforcing rib, 22-connecting plate, 23-groove and 24-handle;
3-locking bolts, 4-guardrail columns, 40-perforated ear plates, 5-protective ropes and 50-elastic turnbuckles.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In embodiment 1 of the embedded hatch structure of the present invention, as shown in fig. 1 to 5, the embedded hatch structure includes a cabin deck 1 and a hatch cover plate 2, a hoisting hatch 10 is opened on the cabin deck 1, a blocking edge 11 is convexly disposed at an inner edge of the hoisting hatch 10, and the blocking edge 11 is located at a lower side of the cabin deck 1; the hatch cover plate 2 can be detachably installed at the hoisting hatch 10, the hatch cover plate 2 is in clearance fit with the hoisting hatch 10, the blocking edge 11 is in blocking fit with the hatch cover plate 2, and a locking structure is further installed between the blocking edge 11 and the hatch cover plate 2; still be equipped with a plurality of section of thick bamboo 12 of inserting in the hoist and mount hatch 10, a plurality of section of thick bamboo 12 of inserting are circumference interval arrangement around the inward flange of hoist and mount hatch 10, and removable cartridge has guardrail stand 4 in inserting a section of thick bamboo 12, is connected with protection rope 5 between two adjacent guardrail stand 4.
In a closed state, the guardrail upright post 4 is detached from the inserting cylinder 12, the hatch cover plate 2 is covered on the hoisting hatch 10, and the locking structure is fixedly connected between the blocking edge 11 and the hatch cover plate 2; when hoist and mount state, hatch board 2 and hoist and mount hatch 10 are pulled apart, and guardrail stand 4 cartridge is in inserting section of thick bamboo 12, and protection rope 5 is connected between two adjacent guardrail stand 4.
This bury formula hatch opening structure has adopted the removable structural design who installs hatch board 2 and guardrail stand 4 in the hoist and mount hatch 10 department of cabin deck 1, when different operating condition, change installation hatch board 2 or guardrail stand 4 can, satisfy the user demand under the different operating mode conditions, use the flexibility better.
When the closed state, guardrail stand 4 is with inserting a section of thick bamboo 12 and detaching, hatch board 2 closing cap is in hoist and mount hatch 10 department, owing to keep off along the inward flange of salient hoist and mount hatch 10, through keeping off along the stop cooperation between 11 and the hatch board 2, and use locking structure to make hatch board 2 seal hoist and mount notch 10 reliably, keep off along 11 the downside that is located cabin deck 1, reserve the accommodation space for installation hatch board 2, be unlikely to protrusion in the upper surface of cabin deck 1 behind the guarantee hatch board 2 closing cap, prevent that local arch from appearing in the upper surface of cabin deck 1, the roughness of whole deck is higher.
When hoist and mount state, hatch board 2 and hoist and mount hatch 10 are pulled apart, make cabin deck 1 locate to form uncovered part in hoist and mount hatch 10, so that implement the operation of hoisting equipment smoothly, 4 cartridge of guardrail stand are in inserting a section of thick bamboo 12, connect protection rope 5 between the adjacent guardrail stand 4, through guardrail stand 4 and protection rope 5 constitute hatch envelope, personnel fall the hatch when having avoided the hoist and mount operation in, dismouting convenient operation and protectiveness are good, danger in the working process has been reduced.
In this embodiment, the inner edge of the hoisting hatch 10 is fixedly connected with a peripheral panel 13, the blocking edge 11 is fixedly connected with the inner lower part of the peripheral panel 13, and the blocking edge 11 is arranged at the lower side of the cabin deck 1 in a staggered manner. A peripheral panel 13 is fixed on the inner edge of the hoisting hatch 10, and the peripheral panel 13 is used for realizing the reliable connection of the blocking edge 11, so that the blocking edge 11 is ensured to be lower than the cabin deck 1 to form an effective accommodating space. Insert a section of thick bamboo 12 towards the inboard of hoist and mount hatch 10 is installed ball 14, ball 14 is used for rolling the cooperation with the equipment of hoist and mount in-process to avoid taking place the striking or draw the scheduling problem of damaging.
A connecting plate 22 is fixedly arranged on the lower side of the hatch cover plate 2, the connecting plate 22 protrudes to the outer side of the edge of the hatch cover plate 2, and the connecting plate 22 is matched with the blocking edge 11 in a blocking manner. The downside of connecting plate 22 still is equipped with sealed the pad, and sealed the pad with keep off the side laminating matching on 11, connecting plate 22 with keep off and have seted up the bolt hole on 11 correspondingly, locking structure is locking bolt 3, locking bolt 3 wears to adorn in the bolt hole of connecting plate 22 and the bolt hole of keeping off along 11. Design connecting plate 22 is located the downside of hatch board 2, has avoided appearing obvious arch behind the installation locking bolt 3, and locking bolt 3 cooperation nut can be fixed hatch board 2 on keeping off along 11 to, sealed pad plays effectual sealed waterproof effect between connecting plate 22 and fender edge 11, prevents in the rainwater infiltration cabin.
Wherein, the downside fixedly connected with inside boarding 20 and a plurality of strengthening rib 21 of hatch board 2, inside boarding 20 encloses the edge inboard of locating hatch board 2, and a plurality of strengthening ribs 21 are latticed and arrange in inside boarding 20. Through the design of the inner coaming 20 and the reinforcing ribs 21, the structural strength of the hatch cover plate 2 is improved, and the hatch cover plate 2 can bear load and resist pressure and cannot deform. Still be equipped with recess 23 on hatch board 2, the bottom of recess 23 is located hatch board 2's downside, and is equipped with handle 24 in the recess 23, and handle 24 and recess 23's bottom interval arrangement are in order to form the gripping space that supplies the people hand to stretch into, but staff's gripping handle 24 when opening hoist and mount hatch 10 to hatch board 2 is opened conveniently smoothly.
In addition, a plurality of inserting cylinders 12 are respectively and fixedly connected to the inner sides of the blocking edges 11, and the bottom of each inserting cylinder 12 is provided with a baffle plate, so that in a hoisting state, the baffle plates of the inserting cylinders 12 are in blocking fit with the guardrail upright posts 4, and the guardrail upright posts 4 are prevented from sliding to the bottom after being inserted. The guardrail upright post 4 is fixed with a perforated ear plate 40, the perforated ear plate 40 of the guardrail upright post 4 is connected with an elastic turnbuckle 50, the end part of the protective rope 5 is connected with the elastic turnbuckle 50, and the tensioning degree of the protective rope 5 can be adjusted through the elastic turnbuckle 50.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. An embedded hatch structure is characterized by comprising a cabin deck and a hatch cover plate, wherein a hoisting hatch is arranged on the cabin deck, a blocking edge is convexly arranged at the inner edge of the hoisting hatch, and the blocking edge is positioned at the lower side of the cabin deck;
the hatch cover plate is detachably mounted at the position of the hoisting hatch, the hatch cover plate is in clearance fit with the hoisting hatch, the blocking edge is in blocking fit with the hatch cover plate, and a locking structure is further mounted between the blocking edge and the hatch cover plate;
the hoisting hatch is also internally provided with a plurality of inserting cylinders which are circumferentially arranged at intervals around the inner edge of the hoisting hatch, guardrail upright columns are detachably inserted into the inserting cylinders, and a protective rope is connected between every two adjacent guardrail upright columns;
when the locking structure is in a closed state, the guardrail upright post is detached from the inserting barrel, the hatch cover plate is covered at the hoisting hatch, and the locking structure is fixedly connected between the blocking edge and the hatch cover plate; when the hoist and mount state, the hatch board with hoist and mount hatch is pulled apart, guardrail stand cartridge in insert a section of thick bamboo, just the protection rope is connected in adjacent two between the guardrail stand.
2. The flush hatch structure of claim 1 wherein the inner edge of the lift hatch is fixedly attached to a peripheral panel, the blocking edge is fixedly attached to the lower inner side of the peripheral panel, and the blocking edge is staggered on the lower side of the deck of the cabin.
3. The buried hatch structure of claim 1 or 2, wherein balls for rolling engagement with equipment during hoisting are mounted on the inner side of the insert barrel facing the hoisting hatch.
4. The embedded hatch structure of claim 1 or 2, wherein a connecting plate is fixedly disposed at a lower side of the hatch cover plate, the connecting plate protruding to an outer side of an edge of the hatch cover plate, and the connecting plate is engaged with the stopper.
5. The embedded hatch structure as claimed in claim 4, wherein a gasket is further disposed on the lower side of the connecting plate, the gasket fits with the upper side of the blocking edge, the connecting plate and the blocking edge have corresponding bolt holes, and the locking structure is a locking bolt inserted into the bolt hole of the connecting plate and the bolt hole of the blocking edge.
6. The embedded hatch structure of claim 1 or 2, wherein an inner panel and a plurality of reinforcing ribs are fixedly connected to a lower side of the hatch cover, the inner panel is disposed inside an edge of the hatch cover, and the plurality of reinforcing ribs are disposed in the inner panel in a grid pattern.
7. The embedded hatch structure as recited in claim 1 or 2, wherein the hatch cover plate is further provided with a groove, the bottom of the groove is located at the lower side of the hatch cover plate, and a pull handle is disposed in the groove and spaced from the bottom of the groove to form a holding space for a human hand to extend into.
8. The embedded hatch structure of claim 2, wherein the plurality of insertion tubes are fixedly connected to the inner sides of the blocking edges, and a blocking plate is disposed at the bottom of each insertion tube, and the blocking plate is in blocking fit with the guardrail posts in a hoisting state.
9. The embedded hatch structure of claim 1, wherein the guardrail posts have apertured ears affixed thereto, the apertured ears of the guardrail posts having turnbuckles attached thereto, the ends of the protective rope being attached to the turnbuckles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111174498.XA CN113859432A (en) | 2021-10-08 | 2021-10-08 | Embedded hatch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111174498.XA CN113859432A (en) | 2021-10-08 | 2021-10-08 | Embedded hatch structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113859432A true CN113859432A (en) | 2021-12-31 |
Family
ID=79002001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111174498.XA Pending CN113859432A (en) | 2021-10-08 | 2021-10-08 | Embedded hatch structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113859432A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1380471A (en) * | 1972-10-17 | 1975-01-15 | Laskey N V | Hatch covers and ventilating system |
| SU1749113A1 (en) * | 1990-07-03 | 1992-07-23 | Центральный научно-исследовательский и проектно-конструкторский институт морского флота | Vessel hatch closure |
| CN205150164U (en) * | 2015-11-30 | 2016-04-13 | 烟台中集来福士海洋工程有限公司 | Bury socket formula safety railing and railing post thereof |
| CN206358316U (en) * | 2016-12-22 | 2017-07-28 | 上海佳豪船海工程研究设计有限公司 | A kind of superposing type hatch board for being suitable to lifting spare part |
| CN207595190U (en) * | 2017-11-17 | 2018-07-10 | 中船黄埔文冲船舶有限公司 | A kind of removable fixture fence for hatchcover hanging object mouth |
| CN208616155U (en) * | 2018-06-30 | 2019-03-19 | 显利(珠海)造船有限公司 | Flush type hatch board and ship |
| CN110861750A (en) * | 2019-10-28 | 2020-03-06 | 中船黄埔文冲船舶有限公司 | Embedded hatch cover |
| CN111409769A (en) * | 2020-04-17 | 2020-07-14 | 中船黄埔文冲船舶有限公司 | Combined hatch cover device |
| CN112026991A (en) * | 2020-07-24 | 2020-12-04 | 芜湖造船厂有限公司 | Protection device for manhole cover on ship and using method thereof |
-
2021
- 2021-10-08 CN CN202111174498.XA patent/CN113859432A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1380471A (en) * | 1972-10-17 | 1975-01-15 | Laskey N V | Hatch covers and ventilating system |
| SU1749113A1 (en) * | 1990-07-03 | 1992-07-23 | Центральный научно-исследовательский и проектно-конструкторский институт морского флота | Vessel hatch closure |
| CN205150164U (en) * | 2015-11-30 | 2016-04-13 | 烟台中集来福士海洋工程有限公司 | Bury socket formula safety railing and railing post thereof |
| CN206358316U (en) * | 2016-12-22 | 2017-07-28 | 上海佳豪船海工程研究设计有限公司 | A kind of superposing type hatch board for being suitable to lifting spare part |
| CN207595190U (en) * | 2017-11-17 | 2018-07-10 | 中船黄埔文冲船舶有限公司 | A kind of removable fixture fence for hatchcover hanging object mouth |
| CN208616155U (en) * | 2018-06-30 | 2019-03-19 | 显利(珠海)造船有限公司 | Flush type hatch board and ship |
| CN110861750A (en) * | 2019-10-28 | 2020-03-06 | 中船黄埔文冲船舶有限公司 | Embedded hatch cover |
| CN111409769A (en) * | 2020-04-17 | 2020-07-14 | 中船黄埔文冲船舶有限公司 | Combined hatch cover device |
| CN112026991A (en) * | 2020-07-24 | 2020-12-04 | 芜湖造船厂有限公司 | Protection device for manhole cover on ship and using method thereof |
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