CN108974257B - Rescue boat winding and unwinding devices - Google Patents
Rescue boat winding and unwinding devices Download PDFInfo
- Publication number
- CN108974257B CN108974257B CN201810987436.2A CN201810987436A CN108974257B CN 108974257 B CN108974257 B CN 108974257B CN 201810987436 A CN201810987436 A CN 201810987436A CN 108974257 B CN108974257 B CN 108974257B
- Authority
- CN
- China
- Prior art keywords
- arm
- rescue boat
- bottom plate
- boom frame
- hinged
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B23/00—Equipment for handling lifeboats or the like
- B63B23/02—Davits, i.e. devices having arms for lowering boats by cables or the like
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention provides a rescue boat retracting device which comprises a boom frame, a pulley block, a sling, an ejection mechanism, a bottom plate and a moving device, wherein the first end of the boom frame is hinged on the bottom plate, the pulley block is arranged on the boom frame, the sling is connected with a winch and connected with a rescue boat by bypassing the pulley block, the rescue boat is hung at the second end of the boom frame, the connecting line of the first end and the second end of the boom frame is superposed with the central line of the rescue boat, the ejection mechanism is arranged on the bottom plate, the ejection mechanism is hinged with the boom frame, the bottom plate is arranged on the moving device, the bottom plate can move on a deck through the moving device, partial transverse displacement of the rescue boat is realized through the moving device, the transverse moving size required by the rotary swing of the boom is greatly reduced, and the boom size can also be correspondingly reduced, greatly reducing the height of the whole set of equipment.
Description
Technical Field
The invention relates to the field of operating equipment of lifeboats or similar devices, in particular to a rescue boat retraction device.
Background
According to the regulations of the international maritime convention, a lifeboat and a matched retraction device thereof must be equipped on an ocean vessel. Generally, a rescue boat launching and receiving device realizes the lifting and lowering operations of a boat through a boat davit cable and a guide pulley device. The existing hydraulic pressure reverse arm type high-speed rescue boat retraction device adopts a hydraulic connecting rod to stretch and drive a suspension arm to rotate, so that the high-speed rescue boat is swung out of a board, and two functions of transverse movement and release of the rescue boat are realized, but the problem that the occupied space of the product is overlarge is solved, and particularly in the aspect of height, the net height of at least 4.5m is required. The rescue boat needs to be guaranteed to be in the board when being on the deck, and can be put out of the board through the folding and unfolding device when being used. In order to ensure the attractiveness of the overall appearance of a ship, a high-speed rescue boat is required to be arranged in a narrow space between two layers of decks, so the height of a rescue boat retracting device needs to be limited, at the moment, if the length of the retracting device is increased to ensure that the rescue boat can be positioned in a shipboard and the difficulty of releasing the rescue boat can be increased, the transverse moving distance of the rescue boat can be changed, but the transverse moving distance of the rescue boat is determined by the size of the rescue boat and relevant specifications and cannot be modified, so the horizontal space of the retracting device cannot be obviously increased.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a rescue boat retraction device which is small in size and simple to release.
In order to solve the technical problems, the rescue boat retracting device provided by the invention comprises a boom frame, a pulley block, a sling, an ejection mechanism, a bottom plate and a moving device, wherein the first end of the boom frame is hinged to the bottom plate, the pulley block is arranged on the boom frame, the sling is connected with a winch and connected with a rescue boat by bypassing the pulley block, the rescue boat is hoisted at the second end of the boom frame, the connecting line of the first end and the second end of the boom frame is superposed with the central line of the rescue boat, the ejection mechanism is arranged on the bottom plate, the ejection mechanism is hinged with the boom frame, the bottom plate is arranged on the moving device, and the bottom plate can move on the deck through the moving device.
Optionally, the boom frame includes a first arm, a second arm, and a third arm, the first arm and the third arm are respectively connected to two ends of the second arm and located on the same side, the first arm is hinged to the bottom plate, the pulley set is located on the third arm, and the ejection mechanism is hinged to the first arm.
Optionally, the ejection mechanism includes a first hydraulic telescopic rod, one end of the first hydraulic telescopic rod is hinged to the bottom plate, the other end of the first hydraulic telescopic rod is hinged to the boom frame, and the first hydraulic telescopic rod is connected to a hydraulic system.
Optionally, the mobile device includes two second hydraulic telescopic rods, two the second hydraulic telescopic rods are arranged in parallel, the second hydraulic telescopic rods include a fixed rod and a movable rod, the bottom plate is connected to the fixed rod, the end of the movable rod is fixed to the deck, and the second hydraulic telescopic rods are connected to the hydraulic system.
Furthermore, two parallel rails are arranged on the deck, and the second hydraulic telescopic rod is located in the rails.
Optionally, an included angle between the first arm and the second arm and an included angle between the third arm and the second arm are 90 ° to 120 °.
Optionally, the second arm is perpendicular to the base plate.
Furthermore, a bracket is arranged on the first arm, the bracket is arranged at one end of the first arm hinged to the bottom plate, and the rescue boat is positioned on the bracket.
The invention has the following beneficial effects:
1. the invention can move the whole retraction device by arranging the boom frame and the ejection mechanism on the bottom plate which is provided with the moving device, so that the rescue boat can be moved to the inboard when on the deck, the transverse moving distance of the rescue boat is not increased while the height of the retraction device is reduced, partial transverse displacement of the rescue boat is realized through the moving device, the transverse moving distance of the rescue boat is kept in relevant specifications, as the size of the transverse movement required by the rotary swing of the suspension arm is greatly reduced, the size of the suspension arm can be correspondingly reduced, the height of the whole set of equipment is greatly reduced, the horizontal direction of the rescue boat does not increase space, the rotation mechanism of the suspension arm can also adopt the existing mechanism without increasing the difficulty of modification, the existing release mode is directly adopted, and the connecting line of the first end and the second end of the suspension arm frame is superposed with the central line of the rescue boat, so that the transverse moving distance of the rescue boat during release is minimum.
2. The suspension arm frame is formed by connecting a first arm, a second arm and a third arm, the included angle between the first arm and the second arm, the included angle between the third arm and the second arm are 90-120 degrees, and the second arm is vertical to the bottom plate, so that the height of the retracting device can be further reduced, and the suspension arm frame is simple and stable in structure and easy to design.
Drawings
Fig. 1 is a schematic view of a recovery state structure of the rescue boat retraction device according to the embodiment.
Fig. 2 is a schematic structural view of a moving state of the rescue boat deploying and retracting device of the embodiment.
Fig. 3 is a structural diagram illustrating a released state of the rescue boat deploying and retracting device according to the embodiment.
Wherein, 1, a first arm; 2. a second arm; 3. a third arm; 4. a pulley block; 5. a sling; 6. a base plate; 7. a winch; 8. a rescue boat; 9. a first hydraulic telescopic rod; 10. a second hydraulic telescopic rod; 1001. fixing the rod; 1002. a movable rod; 11. a bracket; 12. a track.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the rescue boat retraction device of the embodiment includes a boom frame, a pulley block 4, a sling 5, an ejection mechanism, a bottom plate 6 and a moving device, wherein a first end of the boom frame is hinged to the bottom plate 6, the pulley block 4 is arranged on the boom frame, the sling 5 is connected with a winch 7 and connected with the rescue boat 8 by bypassing the pulley block 4, the rescue boat 8 is hoisted at a second end of the boom frame, the ejection mechanism is arranged on the bottom plate 6, the ejection mechanism is hinged to the boom frame, the bottom plate 6 is arranged on the moving device, and the bottom plate 6 can move on a deck through the moving device. The retracting device of the embodiment enables the whole retracting device to move by arranging the boom frame and the ejection mechanism on the bottom plate 6, arranging the bottom plate 6 on the moving device, enabling the rescue boat 8 to move to the inboard when on the deck, reducing the height of the retracting device without increasing the transverse moving distance of the rescue boat 8, realizing partial transverse displacement of the rescue boat 8 by the moving device, keeping the transverse moving distance of the rescue boat 8 in relevant specifications, greatly reducing the transverse moving size required by the rotary swing of the boom, correspondingly reducing the size of the boom, greatly reducing the height of the whole set of equipment, not causing space increase in the horizontal direction, adopting the existing mechanism to rotate the boom without increasing the difficulty of modification, directly adopting the existing release mode, and enabling the connecting line of the first end and the second end of the boom frame to coincide with the central line of the rescue boat 8, minimizing the lateral travel distance of the rescue boat when released.
The davit frame of this embodiment includes first arm 1, second arm 2 and third arm 3, first arm 1 and third arm 3 are connected respectively at the both ends of second arm 2 and are located same one side, first arm 1 articulates on bottom plate 6, assembly pulley 4 is located on third arm 3, ejection mechanism is articulated with first arm 1, in addition, the contained angle of first arm 1 and second arm 2 of this embodiment, the contained angle of third arm 3 and second arm 2 is 90 ~ 120, second arm 2 is perpendicular with bottom plate 6, namely the length of first arm 1 and third arm 3 of this embodiment equals, can further reduce the height of winding and unwinding devices, simple structure is firm and the design is easy, and can reduce the rotation angle of first arm 1.
In addition, the ejection mechanism of this embodiment includes first hydraulic telescoping rod 9, and one end of first hydraulic telescoping rod 9 articulates on bottom plate 6, and the other end of first hydraulic telescoping rod 9 articulates on the jib frame, and first hydraulic telescoping rod 9 is connected with hydraulic system. The mobile device of this embodiment includes two second hydraulic stretching poles 10, two second hydraulic stretching poles 10 parallel arrangement, second hydraulic stretching pole 10 includes dead lever 1001 and movable rod 1002, bottom plate 6 is connected on dead lever 1001, the end fixing of movable rod 1002 is on the deck, second hydraulic stretching pole 10 is connected with hydraulic system, the end fixing of movable rod 1002, when second hydraulic stretching pole 10 is elongated, thereby movable rod 1002 promotes dead lever 1001 and outwards stretches out and make bottom plate 6 remove. Two parallel rails 12 are further arranged on the deck, and the second hydraulic telescopic rod 10 is located in the rails 12 and can ensure the moving direction of the bottom plate 6. The ejection mechanism and the moving device both adopt hydraulic telescopic rods, so that the structure of the whole retracting device can be simplified, and the movement is stable and reliable. The displacement means of this embodiment allows part of the base plate 6 to be moved out of the deck so that the rescue boat 8 can be lowered by rotation of the launch and release means without encountering an obstacle. In addition, the first arm 1 of this embodiment is further provided with a bracket 11, the rescue boat 8 is positioned on the bracket 11, and the bracket 11 of this embodiment is a block, so that the bottom of the rescue boat 8 can be placed on the bracket 11 in a recovery state, and the stability of the rescue boat 8 during parking is maintained.
In summary, in the retracting device of the present embodiment, the boom support and the ejection mechanism are arranged on the bottom plate 6, the bottom plate 6 is provided with the moving device, so that the entire retracting device can be moved, the rescue boat 8 can be moved to the inboard side when being on the deck, the height of the retracting device is reduced while the transverse moving distance of the rescue boat 8 is not increased, the partial transverse displacement of the rescue boat 8 is realized by the moving device, so that the transverse moving distance of the rescue boat 8 is kept within the relevant specification, the transverse moving size required by the rotation and swing of the boom is greatly reduced, the size of the boom can be correspondingly reduced, the height of the whole set of equipment is greatly reduced, the space is not increased in the horizontal direction, and the existing mechanism can be adopted as the boom rotation mechanism without increasing the difficulty of modification, and the existing release mode is directly adopted.
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 (8)
1. The rescue boat retracting device is characterized by comprising a boom frame, a pulley block, a sling, an ejection mechanism, a bottom plate and a moving device, wherein the first end of the boom frame is hinged to the bottom plate, the pulley block is arranged on the boom frame, the sling is connected with a winch and bypasses the pulley block to be connected with a rescue boat, the rescue boat is hoisted at the second end of the boom frame, the connecting line of the first end and the second end of the boom frame is superposed with the central line of the rescue boat, the ejection mechanism is arranged on the bottom plate, the ejection mechanism is hinged to the boom frame, the bottom plate is arranged on the moving device, and the bottom plate can move on the deck through the moving device.
2. The rescue boat stowing and releasing device according to claim 1, wherein the boom frame includes a first arm, a second arm, and a third arm, the first arm and the third arm are connected to both ends of the second arm and located on the same side, respectively, the first arm is hinged to the bottom plate, the pulley set is located on the third arm, and the ejection mechanism is hinged to the first arm.
3. The rescue boat stowing and releasing device according to claim 1, wherein the ejection mechanism comprises a first hydraulic telescoping rod, one end of the first hydraulic telescoping rod is hinged to the bottom plate, the other end of the first hydraulic telescoping rod is hinged to the boom frame, and the first hydraulic telescoping rod is connected with a hydraulic system.
4. The rescue boat stowing and releasing device according to claim 1, wherein the moving device includes two second hydraulic telescoping rods, the two second hydraulic telescoping rods are arranged in parallel, the second hydraulic telescoping rods include a fixed rod and a movable rod, the bottom plate is connected to the fixed rod, an end of the movable rod is fixed to the deck, and the second hydraulic telescoping rod is connected to a hydraulic system.
5. The rescue boat stowing and releasing device according to claim 4, wherein two parallel rails are provided on the deck, the second hydraulic telescoping rod being located within the rails.
6. The rescue boat stowing and releasing device according to claim 2, wherein the included angle between the first arm and the second arm and the included angle between the third arm and the second arm are 90 ° to 120 °.
7. The rescue boat stowing device according to claim 2, wherein the second arm is perpendicular to the floor.
8. The rescue boat stowing and releasing device according to claim 2, wherein a bracket is provided on the first arm, the bracket being provided at an end of the first arm that is hinged to the base plate, the rescue boat being positioned on the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810987436.2A CN108974257B (en) | 2018-08-28 | 2018-08-28 | Rescue boat winding and unwinding devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810987436.2A CN108974257B (en) | 2018-08-28 | 2018-08-28 | Rescue boat winding and unwinding devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108974257A CN108974257A (en) | 2018-12-11 |
| CN108974257B true CN108974257B (en) | 2020-07-24 |
Family
ID=64546649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810987436.2A Active CN108974257B (en) | 2018-08-28 | 2018-08-28 | Rescue boat winding and unwinding devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108974257B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112519960B (en) * | 2020-12-09 | 2024-07-26 | 中船绿洲镇江船舶辅机有限公司 | Boat lifting rope trend device of space swing pulley and use method thereof |
| CN113636021B (en) * | 2021-10-13 | 2021-12-24 | 山东奥维特智能科技有限公司 | Lifting device of ocean engineering rescue boat |
| CN116573105A (en) * | 2023-06-29 | 2023-08-11 | 广船国际有限公司 | Auxiliary boat retraction device and ship |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6327992B1 (en) * | 2001-02-01 | 2001-12-11 | General Hydraulic Solutions, Inc. | Hydraulic lift for small watercraft mounted to a boat transom |
| JP4568632B2 (en) * | 2005-03-31 | 2010-10-27 | カヤバ システム マシナリー株式会社 | Lifting device |
| WO2014047449A1 (en) * | 2012-09-21 | 2014-03-27 | Par Systems, Inc. | Boat deployment assembly and method |
| CN206520726U (en) * | 2017-01-25 | 2017-09-26 | 江阴卧龙玻璃钢船艇有限公司 | Gravity hydraulic falls arm-type boat davit |
-
2018
- 2018-08-28 CN CN201810987436.2A patent/CN108974257B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108974257A (en) | 2018-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108974257B (en) | Rescue boat winding and unwinding devices | |
| US4383616A (en) | Luffing jib for construction crane | |
| US4940008A (en) | Foldable mast assembly | |
| FI84248B (en) | Offshore load-handling system | |
| EP2516250B1 (en) | A crane on a vessel | |
| CN210064981U (en) | Telescopic single-arm boat and raft hanging bracket and crane | |
| CN117302433A (en) | Marine monitoring platform laying method and device | |
| CN215323178U (en) | Slide rail adjustable type ship-borne boat folding and unfolding device | |
| US4473214A (en) | Luffing jib for construction crane | |
| CN208828052U (en) | A kind of rescue boat drop puts device | |
| CN211618000U (en) | Retraction device on seabed mining vehicle ship | |
| CN116281667A (en) | Marine hydraulic folding arm crane of deep sea crane ROV robot and use method thereof | |
| CN210000504U (en) | yacht parking device | |
| JP4340174B2 (en) | crane | |
| CN110382345B (en) | Ship transfer system | |
| CN111071392A (en) | Retraction device on seabed mining vehicle ship | |
| CA2308839A1 (en) | Marine carrier | |
| GB2530759A (en) | Sailing boat height and width reduction devices | |
| CN221367388U (en) | Marine automatic gangway ladder | |
| CN213832063U (en) | Fire-fighting rescue boat on ice surface and in marshland | |
| CN210084792U (en) | Hydraulic folding arm crane for hoisting ship | |
| CN218022079U (en) | Foldable boat blocking structure and ship | |
| CN218839700U (en) | Unmanned ship winding and unwinding devices | |
| NL2008473C2 (en) | Vessel comprising a crane. | |
| JPS5836632Y2 (en) | Lifting device for small ships |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |