CN213262829U - Opening and locking device for folding hatch cover - Google Patents
Opening and locking device for folding hatch cover Download PDFInfo
- Publication number
- CN213262829U CN213262829U CN202021558777.7U CN202021558777U CN213262829U CN 213262829 U CN213262829 U CN 213262829U CN 202021558777 U CN202021558777 U CN 202021558777U CN 213262829 U CN213262829 U CN 213262829U
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- fixed
- wire rope
- locking hook
- box body
- cargo hold
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Abstract
The utility model discloses a locking device is opened to foldable hatch board, including locking hook, locking hook operating device and watertight case, locking hook one end is articulated with the articulated slab lower extreme of vertical fixation at last cargo hold roof downside, and locking hook operating device includes wire rope, pull ring and at least two sets of fixed pulleys, and the U-shaped ring on the wire rope one end and the locking hook other end is connected, and after two sets of fixed pulleys were walked around in proper order to the other end, pass pillar upper end entering watertight incasement, it is continuous with the pull ring of watertight incasement. The support of one group of fixed pulleys is fixed on the lower side of the top plate of the upper cargo hold, the support of the other group of fixed pulleys is fixed on the upper part of the wall plate of the upper cargo hold and is positioned on the lower side of the lower end port of the protective pipe, and the steel wire rope which bypasses the two groups of fixed pulleys is in an inverted Z shape. The utility model has convenient manufacture and low cost. The operation is very convenient, time-saving and labor-saving, the locking hook operating mechanism is convenient to clean and maintain, and the operation efficiency is improved.
Description
Technical Field
The utility model relates to a hatch board at boats and ships cargo hold top, in particular to locking device of state hatch board opens belongs to ship structure technical field.
Background
The body of the grocery ship is provided with a plurality of cargo holds which are arranged at intervals, and a deck at the top of the cargo hold is provided with a cargo hold deck opening, so that a crane lifting appliance can conveniently get in and out of the cargo hold to load and unload cargos. In medium and large-sized grocery ships with the load capacity of more than 10000 tons, part of cargo holds are divided into two cargo holds up and down because the shipowners need to load different kinds of cargo as much as possible, and a hatch cover is arranged in the cargo holds to close or divide the upper and lower parts of the cargo holds, and the separation deck or the opening of the cargo holds on the top of the cargo holds is provided with the hatch cover. Hatch covers are generally classified into lift-off hatch covers, side-shifting hatch covers, and folding hatch covers. The separation deck in the cargo hold generally adopts a folding hatch cover, as shown in fig. 1, the folding hatch cover is composed of a plurality of driving cover plates 10 and driven cover plates 20, the adjacent edges of which are hinged with each other, the driving cover plates 10 are pushed to be vertically erected from a horizontal state by hatch cover opening and closing cylinders 30 respectively arranged at one side of the top of the lower separation cargo hold, and the driving cover plates 10 and the driven cover plates 20 are folded into a vertical state as shown at the left side of fig. 1 by being matched with the lifting of a crane, at the moment, the hatch cover is opened in place. In order to prevent the cover panel folded in the vertical state from suddenly falling out of control and to ensure the safety of cargo handling and crew, the hatch cover can be locked in the open state by hooking the locking hooks 100 installed at corresponding positions on the top of the hatch coaming or the cargo hold onto the top of one cover panel in the vertical state.
When the hatch needs to be closed, a crew pulls a pull ring in the cargo tank, and after the locking hook 100 is pulled up by a steel wire rope to unlock the opened hatch, the hatch opening and closing oil cylinder 30 can be started, and the hatch opening and closing oil cylinder moves in a matched manner through a crane sling 300, so that the driving cover plate 10 and the driven cover plate 20 are driven to fall to close the hatch. The opening and closing of the hatch cover operated by the crew in the cargo hold has the following problems:
1. because the goods in the cargo hold are possibly dangerous goods, before the crewman enters the cargo hold to operate, the crewman needs to wear protective articles, or need to use the ventilator to fully ventilate the cargo hold, make the content of harmful gas in the cargo hold drop to the qualified range after, the crewman can enter the cargo hold to operate. The requirement is high and the process is complicated.
2. The cargo hold has a large volume, and the pull ring and the locking hook are generally arranged at the lower part of the cargo hold. Before a crew enters the cabin, a small cabin cover needs to be opened firstly, the crew enters the cargo cabin from the vertical ladder, and sometimes the crew needs to go through a manhole, so that time and labor are wasted, and the efficiency is lower.
3. As bulk cargos such as chemical fertilizers, coal and the like can be loaded in the cargo hold frequently, the installation positions of the locking hook and the pull ring are low, and the locking hook and the pull ring can be covered by the bulk cargos frequently, the steel wire rope, the pull ring and the locking hook need to be cleaned frequently, and the service life of the steel wire rope can be shortened due to corrosion.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a stand on main deck and open locking device with regard to the foldable hatch board that can operate.
The utility model discloses a following technical scheme realizes:
a folding hatch cover opening and locking device comprises a locking hook, a locking hook operating mechanism and a watertight box, wherein one end of the locking hook is hinged with the lower end of a hinged plate, the hinged plate is vertically fixed on the lower side of an upper cargo hold top plate below a main deck, the locking hook operating mechanism comprises a steel wire rope, a pull ring and at least two groups of fixed pulleys, one end of the steel wire rope is connected with a U-shaped ring on the other end of the locking hook, and the other end of the steel wire rope penetrates out of the upper end of a protective pipe vertically extending out of the main deck to enter the watertight box fixed on one side of a hatch coaming and is connected with the pull ring hooked in; the support of the fixed pulley is upwards fixed on the lower side of the top plate of the upper cargo hold and is positioned on the upper side of the locking hook; the support of the other group of fixed pulleys is fixed on the upper part of the upper cargo hold wallboard and positioned on the lower side of the lower end port of the protective pipe, and the steel wire rope which bypasses the two groups of fixed pulleys is in an inverted Z shape.
The object of the invention is further achieved by the following technical measures.
Furthermore, the watertight box comprises a box body and a weathertight cover, one side of the weathertight cover is hinged with one side of an upper plate of the box body, and a handle is welded on the other side of the weathertight cover; one end of the hook is fixed on the upper part of the inner side surface of the side plate of the box body, and the pull ring is hooked on the other end of the hook to keep the steel wire rope in a tensioning state; the other side of the box body is fixed in the middle of one side of the hatch coaming; the bottom plate of the box body is communicated with the upper end of the protection pipe. The distance H =90 cm-100 cm from the upper side of the main deck to the upper end opening of the box body.
Furthermore, a round steel is welded and fixed at the upper end port of the protective pipe, and the upper end of the steel wire rope is connected with the pull ring after bypassing the middle part of the round steel.
Furthermore, the upper end of the protective pipe penetrates through the box body bottom plate and then is fixed on the box body bottom plate, the middle part of the protective pipe penetrates through the main deck and then is fixedly connected with the main deck, and the lower end of the protective pipe penetrates through the upper cargo hold top plate and is fixed on the upper cargo hold top plate.
The utility model has convenient manufacture and low cost. The pull ring of the locking hook operating mechanism is arranged in the watertight box on the main deck, a crew can pull out the hatch cover unlocked by the pull ring after opening the weather tight cover on the main deck, the operation in the cargo hold from the lower part of the main deck is not needed, the crew is prevented from working in the environment of harmful gas in the cargo hold, and the health of the crew is protected. The utility model discloses it is very convenient to operate, labour saving and time saving, also be convenient for clean and maintenance locking hook operating device, improved the operating efficiency.
The advantages and features of the invention will be illustrated and explained by the following non-restrictive description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings.
Drawings
Fig. 1 is a structural view of the locking hook of the present invention locking a hatch cover in a vertically opened state;
FIG. 2 is a block diagram of the present invention;
fig. 3 is an enlarged view of a portion i of fig. 1.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 to 3, the present embodiment includes a locking hook 100, a locking hook operating mechanism 1 and a watertight box 2, the left end of the locking hook 100 is hinged to a hinged plate 3, the hinged plate 3 is vertically welded and fixed on the lower side of an upper cargo deck top plate 201 below a main deck 200, the locking hook operating mechanism 1 includes a steel wire rope 11, a pull ring 12 and at least two sets of fixed pulleys 13, one end of the steel wire rope 11 is connected to a U-shaped ring 101 vertically welded and fixed on the right end of the locking hook 100, and the other end of the steel wire rope 11 passes through the upper end of a protection pipe 3 vertically extending out of the main deck 200 after sequentially passing around the two sets of fixed pulleys 13, enters the watertight box 2 fixed on the right side of. The holders 131 of the set of fixed pulleys 13 are welded upward to the lower side of the upper deck top 201 on the upper side of the locking hook 100. The support 131 of the other set of fixed pulleys 13 is welded and fixed to the upper portion of the upper deck wall panel 202, and is located below the lower end port of the sheath tube 3. Since one set of fixed pulleys 13 on the lower side of the upper deck roof 201 is higher than the other set of fixed pulleys 13 of the upper deck wall 202, the wire rope 11 passing around the two sets of fixed pulleys 13 has an inverted zigzag shape. The structure is convenient for tensioning the steel wire rope 11, so that the steel wire rope 11 is not easy to separate from the fixed pulley 13, and the opening reliability of the locking hook 100 is improved.
The watertight box 2 comprises a box body 21 and a weather tight cover 22, wherein the left side of the weather tight cover 22 is hinged with the left side of a box body upper plate 211 through a hinge 221, and a handle 222 is welded on the right side. When the weather tight cover 22 is closed, the movable connecting bolt and the ring nut are used for fixing, so that rainwater can not enter the box body 21. One end of a hook 23 is welded and fixed on the upper part of the inner side surface of the box body side plate 211, and a pull ring 12 is hooked on the other end of the hook 23, so that the steel wire rope 11 keeps a tensioning state. The left side of the box body 21 is welded and fixed in the middle of the right side of the hatch coaming 30, and the box body bottom plate 212 is communicated with the upper end of the protective pipe 3. The distance between the upper opening of the box 21 of the present embodiment and the upper side of the main deck 200 is H =95cm, which is convenient for the crew on the main deck 200 to open the weather-tight cover 22 for operation.
The pull ring 12 can be operated after the weather-tight cover 22 is manually opened, which is convenient and fast. The pull ring 12 is hooked on the other end of the hook 23 to keep the wire rope 11 in a tensioned state. The left side of the box body 21 is welded and fixed in the middle of the right side of the hatch coaming 30; the box bottom plate 212 is communicated with the upper end of the protection pipe 3.
The pillar 3 adopts seamless steel pipe to make, and its upper end port welded fastening round steel 31, 11 upper ends of wire rope walk around round steel 31 after the middle part and link to each other with pull ring 12, can cancel a set of fixed pulley 13, reduce the utility model discloses a manufacturing cost. The upper end of the protective pipe 3 penetrates through the box body bottom plate 212 and then is welded and fixed on the box body bottom plate 212, the middle part of the protective pipe 3 penetrates through the main deck 200 and then is welded and fixed with the main deck 200, and the lower end of the protective pipe 3 penetrates through the upper cargo hold top plate 201 and is welded and fixed on the upper cargo hold top plate 201. A plurality of detection devices can be arranged on the upper part of the protective pipe 3 penetrating out of the main deck 200, so that the monitoring and recording of the temperature, the humidity, the pressure, the gas concentration and the like in the cargo hold are facilitated.
Before the folding hatch cover needs to be unlocked and closed, a crew standing on the main deck 200 opens the weather tight cover 22 of the watertight box 2, and can stretch hands into the watertight box 2 to take down the pull ring 12 hooked on the other end of the hook 23, pull up the pull ring 12 to drive the steel wire rope 11 to move up along the protective pipe 3, the lower end of the steel wire rope 11 pulls the U-shaped ring 101 on the right end of the locking hook 100 to enable the locking hook 100 to rotate upwards to be separated from the top of one cover plate in a vertical state, so that the hatch cover in an open state is unlocked, next hatch cover closing action can be carried out, the piston rod of the hatch cover opening and closing oil cylinder 30 retracts to pull the driving cover plate 10 to move downwards, the crane sling 300 at the hinged position of the hung hatch cover is matched to slowly descend, and the driving cover plate 10 and the driven cover plate 20 which are hinged to each other.
In addition to the above embodiments, the present invention can also have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (5)
1. A folding hatch cover opening and locking device is characterized in that: the locking hook operating mechanism comprises a steel wire rope, a pull ring and at least two groups of fixed pulleys, wherein one end of the steel wire rope is connected with a U-shaped ring on the other end of the locking hook, and the other end of the steel wire rope sequentially rounds the two groups of fixed pulleys, penetrates out of the upper end of a protective pipe vertically extending out of the main deck, enters the watertight box fixed on one side of a hatch coaming and is connected with the pull ring hooked in the watertight box; the support of the fixed pulley is upwards fixed on the lower side of the top plate of the upper cargo hold and positioned on the upper side of the locking hook; the support of the other group of fixed pulleys is fixed on the upper part of the upper cargo hold wallboard and positioned on the lower side of the lower end port of the protective pipe, and the steel wire rope which bypasses the two groups of fixed pulleys is in an inverted Z shape.
2. The folding hatch opening locking device of claim 1, characterized in that: the watertight box comprises a box body and a weather tight cover, one side of the weather tight cover is hinged with one side of an upper plate of the box body, and a handle is welded on the other side of the weather tight cover; one end of the hook is fixed on the upper part of the inner side surface of the side plate of the box body, and the pull ring is hooked on the other end of the hook to keep the steel wire rope in a tensioning state; the other side of the box body is fixed in the middle of one side of the hatch coaming; the bottom plate of the box body is communicated with the upper end of the protection pipe.
3. The folding hatch opening locking device of claim 2, characterized in that: the distance H =90 cm-100 cm between the upper end opening of the box body and the upper side of the main deck.
4. The folding hatch opening locking device of claim 1, characterized in that: a round steel is welded and fixed at the upper end port of the protective pipe, and the upper end of the steel wire rope is connected with the pull ring after bypassing the middle part of the round steel.
5. A folding hatch opening and locking device according to claim 1 or 2, characterised in that: the upper end of the protective pipe penetrates through the box body bottom plate and then is fixed on the box body bottom plate, the middle part of the protective pipe penetrates through the main deck and then is fixedly connected with the main deck, and the lower end of the protective pipe penetrates through the upper cargo hold top plate and is fixed on the upper cargo hold top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021558777.7U CN213262829U (en) | 2020-07-31 | 2020-07-31 | Opening and locking device for folding hatch cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021558777.7U CN213262829U (en) | 2020-07-31 | 2020-07-31 | Opening and locking device for folding hatch cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213262829U true CN213262829U (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021558777.7U Active CN213262829U (en) | 2020-07-31 | 2020-07-31 | Opening and locking device for folding hatch cover |
Country Status (1)
| Country | Link |
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| CN (1) | CN213262829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042918A (en) * | 2022-05-27 | 2022-09-13 | 中船黄埔文冲船舶有限公司 | Hydraulic drive folding type cabin cover emergency cabin opening structure and method |
-
2020
- 2020-07-31 CN CN202021558777.7U patent/CN213262829U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042918A (en) * | 2022-05-27 | 2022-09-13 | 中船黄埔文冲船舶有限公司 | Hydraulic drive folding type cabin cover emergency cabin opening structure and method |
| CN115042918B (en) * | 2022-05-27 | 2023-10-27 | 中船黄埔文冲船舶有限公司 | Hydraulic-driven folding hatch cover emergency cabin opening structure and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 212005 No. 8 Jingjiang Road, Zhenjiang City, Jiangsu Province Patentee after: JIANGSU ZHENJIANG SHIPYARD (Group) Co.,Ltd. Address before: 212005 No.8 Runjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: JIANGSU ZHENJIANG SHIPYARD (Group) Co.,Ltd. |