CN113548155B - Lifting device for pilot to get on or off ship - Google Patents
Lifting device for pilot to get on or off ship Download PDFInfo
- Publication number
- CN113548155B CN113548155B CN202111096184.2A CN202111096184A CN113548155B CN 113548155 B CN113548155 B CN 113548155B CN 202111096184 A CN202111096184 A CN 202111096184A CN 113548155 B CN113548155 B CN 113548155B
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- Prior art keywords
- fixedly connected
- rod
- pilot
- boarding
- supporting
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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
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
- B63B27/146—Pilot ladders or similar outboard ladders, e.g. bathing ladders; Pilot lifts
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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
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
- B63B27/146—Pilot ladders or similar outboard ladders, e.g. bathing ladders; Pilot lifts
- B63B2027/148—Pilot lifts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a lifting device for a pilot to climb away from a ship, which comprises a mounting plate fixedly connected with the pilot, two support plates fixedly connected with the upper surface of the mounting plate, a mounting bracket fixedly connected with the top ends of the support plates, and a power assembly arranged on the mounting bracket, wherein the boarding assembly is formed by telescopically connecting a plurality of climbing assemblies and is used for the pilot to ascend away from the pilot, the boarding assembly is rotatably connected on the two support plates, and the power assembly is used for lifting the boarding assembly. The problem that the pilot falls into the river is prevented.
Description
Technical Field
The invention relates to the technical field of marine matching devices, in particular to a hoisting device for a pilot to get on and off a ship.
Background
The pilot can be divided into three types of port pilots, inland river pilots and coastal pilots according to pilot water areas. In China, a seaport pilot is called piloting port, and a Yangtze river pilot is called piloting river. Ships navigate in harbor areas, inland rivers and along the shore, and in order to avoid accidents such as stranding, reef touch, collision and the like, drivers are required to control the positions of the ships in time and avoid the ships. Therefore, the pilot must have sufficient knowledge of the geographical features of the water area, the channel, the water depth, the water flow, the navigation mark arrangement and the local regulations and regulations, and have a skilled ship driving and steering technique.
At present, a pilot is generally used for boarding and disembarking a ship by using a pilot rope ladder, which is the most common mode for boarding and disembarking the ship at present. However, the rope ladder is severely shaken and is not easy to climb, a large amount of physical force is consumed when a pilot climbs the rope ladder, relative fluctuation and bump are generated between two ships due to stormy waves, the pilot is difficult to jump up the pilot ladder, the pilot does not concentrate on the attention slightly in the climbing process, the pilot cannot timely master the best boarding opportunity to climb away, and the pilot can fall down or even fall into a river.
Disclosure of Invention
The present invention is directed to a lifting device for a pilot to get on and off a ship, so as to solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a for pilot steps on from boats and ships
The hoisting device comprises a mounting plate fixedly connected with a pilot ship, wherein the upper surface of the mounting plate is fixedly connected with two support plates, the top ends of the support plates are fixedly connected with a mounting bracket, the mounting bracket is provided with a power assembly, and a plurality of climbing assemblies are telescopically connected with each other, the climbing assemblies are used for a pilot to climb away from the pilot ship, the climbing assemblies are rotatably connected onto the two support plates, and the power assemblies are used for hoisting the climbing assemblies;
the climbing assembly comprises a cross rod, a pedal assembly, a supporting rod, a round rod, a spring and two vertical rods, the front end and the rear end of the cross rod are respectively and fixedly connected with the two vertical rods, the pedal assembly is fixedly connected to the cross rod, the right end of the supporting rod is fixedly connected with the left sides of the vertical rods, the left end of the supporting rod is fixedly connected with the round rod, the top end of the round rod penetrates through the supporting rod on the upper side and is fixedly connected with a limiting block, the spring is sleeved on the outer surface of the round rod, one end of the spring is fixedly connected with the limiting block, and the other end of the spring is fixedly connected with the supporting rod;
the top end of the upright rod is fixedly connected with a stop block, the bottom end of the upright rod is provided with a cavity, the stop block is connected in the cavity above the stop block in a sliding manner, and the inner wall of the cavity is fixedly connected with a check ring matched with the stop block;
the pedal assembly comprises a fixing plate and a plurality of anti-slip grooves, the number of the anti-slip grooves is multiple, the anti-slip grooves are evenly formed in the upper surface of the fixing plate, a plurality of water leakage holes are evenly formed in the inner bottom wall of each anti-slip groove, one end of each water leakage hole penetrates through the inner bottom wall of each anti-slip groove, and the other end of each water leakage hole penetrates through the lower surface of the fixing plate.
Preferably, the four corners of the mounting plate are provided with mounting holes, screws are arranged in the mounting holes, and the mounting support is of a U-shaped structure.
Preferably, power component includes gear motor, pivot, first take-up pulley and second take-up pulley, gear motor fixed connection is in the front of installing support, the one end of pivot and gear motor's output fixed connection, the other end of pivot is connected with the dorsal rotation of installing support, the equal fixed connection of first take-up pulley and second take-up pulley is at the surface of pivot.
Preferably, the diameter of the first winding wheel is smaller than that of the second winding wheel, a first lifting rope is wound on the outer surface of the first winding wheel, the other end of the first lifting rope is movably connected with the climbing assembly at the top end, a second lifting rope is wound on the outer surface of the second winding wheel, and the other end of the second lifting rope is movably connected with the climbing assembly at the bottom end.
Preferably, the climbing assembly at the top end is fixedly connected with a connecting plate, the connecting plate is rotatably connected with the supporting plate through a pin shaft, the front end and the rear end of the climbing assembly at the top end are rotatably connected with first connecting rods, the first connecting rods are fixedly connected with a first lifting rope, the front end and the rear end of the climbing assembly at the bottom end are rotatably connected with second connecting rods, and the second connecting rods are fixedly connected with a second lifting rope.
Preferably, the right side of the climbing assembly at the bottom end is fixedly connected with a supporting connecting rod, the right end of the supporting connecting rod is fixedly connected with a supporting baffle, and the right end of the supporting baffle is fixedly connected with a rubber block.
Compared with the prior art, the invention has the beneficial effects that:
1. the device is fixed on a pilot ship through the mounting plate, the climbing assembly is composed of the plurality of climbing assemblies, and the power assembly is used for lifting, so that the device is easier to climb and is not easy to shake, and the physical strength consumed by a pilot when climbing the pilot ship is reduced;
2. the rotating shaft is driven to rotate by the speed reducing motor, the first winding wheel and the second winding wheel can be driven to rotate by the rotating shaft in the rotating process, the first lifting rope and the second lifting rope can be respectively loosened in the rotating process of the first winding wheel and the second winding wheel, the first winding wheel and the second winding wheel can rotate around the pin shaft by the gravity of the boarding assembly, and meanwhile, the plurality of climbing assemblies can extend out by the restoring force of the spring until the rubber block on the supporting baffle is in contact with the pilot ship, so that the structure is more stable;
3. according to the invention, a pilot holds the round bar and simultaneously treads the pedal assembly with the anti-skid groove, and river water falling onto the pedal assembly flows out by combining with the water leakage holes in the bottom wall of the anti-skid groove, so that the pilot can get on and off a sea ship more stably, and the problem that the pilot falls into the river is prevented.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic structural view of the power assembly of the present invention;
FIG. 3 is a schematic structural view of the boarding assembly of the present invention;
FIG. 4 is a schematic illustration of the construction of a climbing assembly of the present invention;
FIG. 5 is a schematic structural view of the support link of the present invention;
FIG. 6 is a schematic structural view of a connecting plate of the present invention;
fig. 7 is a schematic structural view of the pedal assembly of the present invention.
In the figure: 1-mounting a plate; 2-a support plate; 3, mounting a bracket; 4-a power assembly; 5-a climbing assembly; 6-a boarding assembly; 101-mounting holes; 401-a geared motor; 402-a rotating shaft; 403-a first reel; 404-a second reel; 405-a first lifting rope; 406-a second lifting rope; 501-a cross bar; 502-a pedal assembly; 503-support bars; 504-round bar; 505-a spring; 506-erecting a rod; 507-a limiting block; 508-a stop; 509-a cavity; 510-a retainer ring; 511-a fixing plate; 512-anti-slip groove; 513-water leakage holes; 521-a connecting plate; 522-pin shaft; 523-first connecting rod; 524-a second connecting rod; 525-support link; 526-supporting baffles; 527-rubber block.
Detailed Description
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. 1-7, a pick-up and landing apparatus for a pilot boarding and disembarking a vessel is shown, comprising:
a mounting plate 1 for being fixedly connected with a pilot ship, two supports are fixedly connected on the upper surface of the mounting plate 1
The top end of the plate 2, the supporting plate 2 is fixedly connected with a mounting bracket 3, and a power assembly 4 is arranged on the mounting bracket 3;
the boarding assembly 6 is telescopically connected by a plurality of climbing assemblies 5, the boarding assembly 6 is used for a pilot to board and leave a pilot boat, the boarding assembly 6 is rotatably connected to the two supporting plates 2, and the power assembly 4 is used for hoisting and placing the boarding assembly 6;
wherein, the climbing assembly 5 comprises a cross rod 501, a pedal assembly 502, a support rod 503, a round rod 504, a spring 505 and two upright rods 506, the front end and the rear end of the cross rod 501 are respectively and fixedly connected with the two upright rods 506, the pedal assembly 502 is fixedly connected on the cross rod 501, the right end of the support rod 503 is fixedly connected with the left side of the upright rod 506, the left end of the support rod 503 is fixedly connected with the round rod 504, the top end of the round rod 504 penetrates through the upper support rod 503 and is fixedly connected with a limit block 507, the spring 505 is sleeved on the outer surface of the round rod 504, one end of the spring 505 is fixedly connected with the limit block 507, the other end of the spring 505 is fixedly connected with the support rod 503, the top end of the upright rod 506 is fixedly connected with a stop block 508, the bottom end of the upright rod 506 is provided with a cavity 509, the stop block 508 is slidably connected in the cavity 509 above, the inner wall of the cavity 509 is fixedly connected with a stop ring 510 matched with the stop block 508, the upright rod 506 drives the stop block 508 to slide in the cavity 509, the upright rod 506 can drive the supporting rod 503 to move, the supporting rod 503 can drive the round rod 504 to move in the moving process, and the round rod 504 can slide on the supporting rod 503 above and stretch the spring 505 in the moving process, so that the plurality of climbing assemblies 5 can be retracted together;
meanwhile, the pedal assembly 502 comprises a fixing plate 511 and a plurality of anti-slip grooves 512, the anti-slip grooves 512 are provided in number, the anti-slip grooves 512 are uniformly formed in the upper surface of the fixing plate 511, the inner bottom wall of the anti-slip grooves 512 is uniformly provided with a plurality of water leakage holes 513, one end of each water leakage hole 513 penetrates through the inner bottom wall of the anti-slip groove 512, the other end of each water leakage hole 513 penetrates through the lower surface of the fixing plate 511, a pilot holds the round bar 504 and treads the pedal assembly 502 with the anti-slip grooves 512, and the water falling into the pedal assembly 502 flows out by combining the water leakage holes 513 in the inner bottom wall of the anti-slip grooves 512;
meanwhile, the power assembly 4 comprises a reducing motor 401, a rotating shaft 402, a first wire winding wheel 403 and a second wire winding wheel 404, the reducing motor 401 is fixedly connected to the front side of the mounting bracket 3, one end of the rotating shaft 402 is fixedly connected with the output end of the reducing motor 401, the other end of the rotating shaft 402 is rotatably connected with the back side of the mounting bracket 3, the first wire winding wheel 403 and the second wire winding wheel 404 are both fixedly connected to the outer surface of the rotating shaft 402, the diameter of the first wire winding wheel 403 is smaller than that of the second wire winding wheel 404, a first lifting rope 405 is wound on the outer surface of the first wire winding wheel 403, the other end of the first lifting rope 405 is movably connected with the climbing assembly 5 at the top end, a second lifting rope 406 is wound on the outer surface of the second wire winding wheel 404, the other end of the second lifting rope 406 is movably connected with the climbing assembly 5 at the bottom end, the reducing motor 401 is turned on to drive the rotating shaft 402 to rotate, the rotating shaft 402 can drive the first wire winding wheel 403 and the second wire winding wheel 404 to rotate in the rotating process, the first winding wheel 403 and the second winding wheel 404 can wind a first lifting rope 405 and a second lifting rope 406 respectively in the process of rotating;
the top climbing assembly 5 is fixedly connected with a connecting plate 521, the connecting plate 521 is rotatably connected with the support plate 2 through a pin 522, the front end and the rear end of the top climbing assembly 5 are rotatably connected with first connecting rods 523, the first connecting rods 523 are fixedly connected with a first lifting rope 405, the front end and the rear end of the bottom climbing assembly 5 are rotatably connected with second connecting rods 524, the second connecting rods 524 are fixedly connected with second lifting ropes 406, the first lifting rope 405 drives the top climbing assembly 5 to move through the first connecting rods 523, the climbing assembly 5 drives the connecting plate 521 to rotate around the pin 522, and meanwhile, the second lifting ropes 406 drive the bottom climbing assembly 5 to contract through the second connecting rods 524;
wherein, the subassembly 5 right side fixedly connected with support link 525 that climbs of bottom, the right-hand member fixedly connected with support baffle 526 of support link 525, the right-hand member fixedly connected with rubber block 527 of support baffle 526, the rubber block 527 on the support baffle 526 and the ship contact of navigating, can improve the frictional force between support baffle 526 and the ship of navigating to make this structure stability more.
The principle of the hoisting device is as follows: the device is fixed on a pilot ship through a mounting plate 1, when the hoisting device is folded, a speed reduction motor 401 is opened to drive a rotating shaft 402 to rotate, the rotating shaft 402 can drive a first wire winding wheel 403 and a second wire winding wheel 404 to rotate in the rotating process, the first wire winding wheel 403 and the second wire winding wheel 404 can respectively wind a first lifting rope 405 and a second lifting rope 406 in the rotating process, at the moment, the first lifting rope 405 drives a climbing assembly 5 at the top end to move through a first connecting rod 523, the climbing assembly 5 drives a connecting plate 521 to rotate around a pin 522, at the same time, the second lifting rope 406 drives the climbing assembly 5 at the bottom end to contract through a second connecting rod 524, at the moment, an upright rod 506 drives a stop block 509 to slide in a cavity 509, the upright rod 506 can drive a supporting rod 503 to move, the supporting rod 503 can drive a round rod 504 to move in the moving process, the round rod 503 can slide on the supporting rod 503 above and stretch a spring 505 in the moving process, until the climbing assemblies 5 are contracted together and the boarding assembly 6 is retracted, when the climbing assembly is used, the speed reducing motor 401 is started to drive the rotating shaft 402 to rotate, the rotating shaft 402 can drive the first wire winding wheel 403 and the second wire winding wheel 404 to rotate in the rotating process, the first wire winding wheel 403 and the second wire winding wheel 404 can respectively loosen the first lifting rope 405 and the second lifting rope 406 in the rotating process, the first lifting rope 405 and the second lifting rope 406 can rotate around the pin 522 through the gravity of the boarding assembly 6, at the same time, the restoring force of the springs 505 enables the plurality of climbing assemblies 5 to extend, until the rubber block 527 on the support baffle 526 is brought into contact with the navigation vessel, the pilot then holds the rod 504 and steps on the pedal assembly 502 with the anti-skid slot 512, and combined with the water leakage holes 513 on the inner bottom wall of the anti-slip groove 512 to make the river falling onto the pedal assembly 502 flow out, therefore, the pilot can get on and off the seagoing vessel more stably, and the problem that the pilot falls into the river is prevented.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A hoist arrangement for a pilot boarding and disembarking vessel, comprising:
a mounting panel (1) for with navigation ship fixed connection, the upper surface of mounting panel (1) is fixed to be connected
The device is characterized by comprising two supporting plates (2), wherein the top ends of the supporting plates (2) are fixedly connected with a mounting bracket (3), and a power assembly (4) is arranged on the mounting bracket (3);
the boarding assemblies (6) are telescopically connected by a plurality of climbing assemblies (5), the boarding assemblies (6) are used for a pilot to board and leave a pilot ship, the boarding assemblies (6) are rotatably connected to the two supporting plates (2), and the power assemblies (4) are used for hoisting and releasing the boarding assemblies (6);
the climbing assembly (5) comprises a cross rod (501), a pedal assembly (502), a supporting rod (503), a round rod (504), a spring (505) and two vertical rods (506), wherein the front end and the rear end of the cross rod (501) are fixedly connected with the two vertical rods (506) respectively, the pedal assembly (502) is fixedly connected to the cross rod (501), the right end of the supporting rod (503) is fixedly connected with the left side of the vertical rod (506), the left end of the supporting rod (503) is fixedly connected with the round rod (504), the top end of the round rod (504) penetrates through the supporting rod (503) on the upper side and is fixedly connected with a limiting block (507), the spring (505) is sleeved on the outer surface of the round rod (504), one end of the spring (505) is fixedly connected with the limiting block (507), and the other end of the spring (505) is fixedly connected with the supporting rod (503);
the top end of the vertical rod (506) is fixedly connected with a stop block (508), the bottom end of the vertical rod (506) is provided with a cavity (509), the stop block (508) is connected in the cavity (509) above in a sliding manner, and the inner wall of the cavity (509) is fixedly connected with a check ring (510) matched with the stop block (508);
footboard subassembly (502) is including fixed plate (511) and anti-skidding groove (512), the quantity of anti-skidding groove (512) is a plurality of, and is a plurality of the upper surface at fixed plate (511) is evenly seted up in anti-skidding groove (512), a plurality of holes of leaking (513) have evenly been seted up to the inner bottom wall in anti-skidding groove (512), the inner bottom wall in anti-skidding groove (512) is run through to the one end in hole of leaking (513), the lower surface of fixed plate (511) is run through to the other end in hole of leaking (513).
2. A hoist arrangement for a pilot boarding and disembarking vessel according to claim 1, characterized in that: mounting holes (101) are formed in four corners of the mounting plate (1), screws are arranged in the mounting holes (101), and the mounting support (3) is of a U-shaped structure.
3. A hoist arrangement for a pilot boarding and disembarking vessel according to claim 1, characterized in that: power component (4) include gear motor (401), pivot (402), first wire reel (403) and second wire reel (404), gear motor (401) fixed connection is in the front of installing support (3), the one end of pivot (402) and the output fixed connection of gear motor (401), the other end of pivot (402) is connected with the back rotation of installing support (3), the equal fixed connection of first wire reel (403) and second wire reel (404) is at the surface of pivot (402).
4. A hoist arrangement for a pilot boarding and disembarking vessel according to claim 3, characterized in that: the diameter of the first wire winding wheel (403) is smaller than that of the second wire winding wheel (404), a first lifting rope (405) is wound on the outer surface of the first wire winding wheel (403), the other end of the first lifting rope (405) is movably connected with the climbing assembly (5) at the top end, a second lifting rope (406) is wound on the outer surface of the second wire winding wheel (404), and the other end of the second lifting rope (406) is movably connected with the climbing assembly (5) at the bottom end.
5. A hoist arrangement for a pilot boarding and disembarking vessel according to claim 4, characterized in that: the climbing component (5) at the top end is fixedly connected with a connecting plate (521), the connecting plate (521) is rotatably connected with a supporting plate (2) through a pin shaft (522), the front end and the rear end of the climbing component (5) at the top end are rotatably connected with a first connecting rod (523), the first connecting rod (523) is fixedly connected with a first lifting rope (405), the front end and the rear end of the climbing component (5) at the bottom end are rotatably connected with a second connecting rod (524), and the second connecting rod (524) is fixedly connected with a second lifting rope (406).
6. A hoist arrangement for a pilot boarding and disembarking vessel according to claim 1, characterized in that: the right side of the climbing assembly (5) at the bottom end is fixedly connected with a supporting connecting rod (525), the right end of the supporting connecting rod (525) is fixedly connected with a supporting baffle plate (526), and the right end of the supporting baffle plate (526) is fixedly connected with a rubber block (527).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111096184.2A CN113548155B (en) | 2021-09-18 | 2021-09-18 | Lifting device for pilot to get on or off ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111096184.2A CN113548155B (en) | 2021-09-18 | 2021-09-18 | Lifting device for pilot to get on or off ship |
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| Publication Number | Publication Date |
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| CN113548155A CN113548155A (en) | 2021-10-26 |
| CN113548155B true CN113548155B (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111096184.2A Active CN113548155B (en) | 2021-09-18 | 2021-09-18 | Lifting device for pilot to get on or off ship |
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| CN (1) | CN113548155B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3503836A1 (en) * | 1985-02-05 | 1986-10-16 | Ekke 2103 Hamburg Pahl | Telescopic stairway |
| CN201872909U (en) * | 2010-11-18 | 2011-06-22 | 哈尔滨工程大学 | Unidirectional chain-type telescopic gangway ladder |
| CN201914415U (en) * | 2010-11-19 | 2011-08-03 | 哈尔滨工程大学 | Three-point rope-coiled type telescoping accommodation ladder |
| CN203544327U (en) * | 2013-08-28 | 2014-04-16 | 江苏力盛船舶设备制造有限公司 | Mobile accommodation ladder |
-
2021
- 2021-09-18 CN CN202111096184.2A patent/CN113548155B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3503836A1 (en) * | 1985-02-05 | 1986-10-16 | Ekke 2103 Hamburg Pahl | Telescopic stairway |
| CN201872909U (en) * | 2010-11-18 | 2011-06-22 | 哈尔滨工程大学 | Unidirectional chain-type telescopic gangway ladder |
| CN201914415U (en) * | 2010-11-19 | 2011-08-03 | 哈尔滨工程大学 | Three-point rope-coiled type telescoping accommodation ladder |
| CN203544327U (en) * | 2013-08-28 | 2014-04-16 | 江苏力盛船舶设备制造有限公司 | Mobile accommodation ladder |
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| Publication number | Publication date |
|---|---|
| CN113548155A (en) | 2021-10-26 |
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