CN104859792B - A kind of washing of tanks ladder - Google Patents

A kind of washing of tanks ladder Download PDF

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Publication number
CN104859792B
CN104859792B CN201510234478.5A CN201510234478A CN104859792B CN 104859792 B CN104859792 B CN 104859792B CN 201510234478 A CN201510234478 A CN 201510234478A CN 104859792 B CN104859792 B CN 104859792B
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group
cabin
ladder
steel wire
expansion link
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CN201510234478.5A
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CN104859792A (en
Inventor
王秋林
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Taizhou City Jin Tai Equipment Of Vessel Co Ltd
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Taizhou City Jin Tai Equipment Of Vessel Co Ltd
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Priority to CN201510234478.5A priority Critical patent/CN104859792B/en
Publication of CN104859792A publication Critical patent/CN104859792A/en
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Abstract

The present invention relates to a kind of washing of tanks ladder, including hanging ladder, rope ladder and fixed dolly;One end of the hanging ladder is mounted on cabin along upper, and the other end stretches into cabin;The rope ladder includes that steel wire rope group and pedal, one end that cabin is stretched into hanging ladder in one end of steel wire rope group are connected, and the other end is connected with fixed dolly, stretches direction along its edge and be equidistantly provided with pedal in steel wire rope group;The fixed dolly is provided with for adsorbing the permanent-magnetic hoister of cabin bottom.The present invention is easy to use, easily fills readily removable, storage convenience.The present invention facilitates operating personnel to process all sites of cabin inwall, and the safety of operating personnel can be effectively ensured.

Description

A kind of washing of tanks ladder
Technical field
The present invention relates to cabin cleaning field, more particularly to a kind of washing of tanks ladder.
Background technology
Large-scale bulk freighter in the world is all a very laborious task when cabin cleaning is carried out.Particularly in cleaning There is many difficult problems during portion's bulkhead, mainly large-scale bulk freighter top bulkhead is exactly dead angle, people cannot be cleaned to.Such large-scale scattered Shipment is mainly Panamax and big handy-size bulk carrier, cleans the maximum difficult problem of cabin and first consists in cabin height.Typically Panamax bulk carrier, the distance of cabin bottom to cabin edge is more than 17 meters.When standing in cabin bottom hydraulic giant flushing eminence bulkhead, Although tank washings can reach bulkhead, impulsive force weakens significantly, it is impossible to effectively wash away stain.Particularly transport Cleaned after coal, only can not be cleaned up by tank washings, now the punching of high ladder side must be climbed up by operating personnel Brush on side.So not only reduce cleaning efficiency and increased work risk.
Also devise for this people multiple trapezoidal, but be not still fully solved a difficult problem on the spot.Such as band chain-wales can The washing of tanks ladder of lifting, the washing of tanks ladder have following problem:1st, on present bulkhead, without during rib, it cannot just fix, such as Fruit carries out later stage rib Welding Modification, not only inconvenient, and can increase cost input;2nd, for its cabin of large-scale bulk freighter along with Top bulkhead has a suitable segment distance, and operating personnel still need to use long pole brush when being scrubbed and scrubbed, it is impossible to Real firmly scrub, affects washing effect.
Content of the invention
It is an object of the invention to provide a kind of group, dismounting simplicity, process cabin inwall in which can guarantee that operator safety All sites washing of tanks ladder.
The technical scheme for realizing the object of the invention is:The present invention includes hanging ladder, rope ladder and fixed dolly;The one of the hanging ladder End is mounted on cabin along upper, and the other end stretches into cabin;The rope ladder includes steel wire rope group and pedal, one end of steel wire rope group and hanging ladder One end connection of cabin is stretched into, the other end is connected with fixed dolly, direction is stretched along its edge in steel wire rope group and be equidistantly provided with pedal;Institute State fixed dolly to be provided with for adsorbing the permanent-magnetic hoister of cabin bottom.
Above-mentioned steel wire rope group includes that many steel wire ropes, one end that cabin is stretched into hanging ladder in one end of each steel wire rope are connected, separately One end is connected with fixed dolly by euphroe.
Multiple coupling assemblies are equipped with each steel wire rope of above-mentioned steel wire rope group, and each pedal is solid by corresponding coupling assembly Dingan County is mounted in steel wire rope group;The coupling assembly includes expansion link group and intermediate connector;The expansion link group includes hollow The first expansion link and the second hollow expansion link, the first expansion link coaxially slide is arranged in the second expansion link;Described first The afterbody of expansion link is provided with connection external screw thread, and the second expansion link is provided near the oral area that the first expansion link stretches out and is connected external screw thread The connection internal thread of cooperation, the tail end of the second expansion link are fixed with attaching nut;It is provided between the adjacent expansion link group Intermediate connector;The intermediate connector includes threaded joints, limiting section and draw-in groove;The threaded joints are through on pedal Connection through hole and intermediate connector above the second expansion link on attaching nut be connected, pedal is installed on attaching nut Between limiting section;The head of the first expansion link below the intermediate connector is installed in the draw-in groove of intermediate connector;Institute State steel wire rope to wear and mistake from the first expansion link, the second expansion link and intermediate connector.
Above-mentioned intermediate connector includes that the first contiguous block and the second contiguous block as limiting section, the first contiguous block include connecting All-in-one-piece threaded joints and cone connection is connect, the second contiguous block is provided with the bellmouth coordinated with cone connection, cone The bottom end face of shape connecting portion is provided with draw-in groove;Second contiguous block is sleeved on the first contiguous block, and threaded joints are from Stretch out in the bellmouth of two contiguous blocks and through on the second expansion link above the connection through hole and intermediate connector on pedal Attaching nut is connected, and pedal is installed between attaching nut and the second contiguous block;Below the intermediate connector first The head of expansion link is installed in the draw-in groove of cone connection.
Above-mentioned steel wire rope group includes the steel wire rope of four rectangular distributions.
Above-mentioned washing of tanks ladder also includes horizontal ladder;The horizontal ladder includes horizontally disposed support bar group, and one end of support bar group is solid Dingan County is mounted in steel wire rope group, and the other end is stretched to cabin inwall edge;Pedal and guardrail is equipped with the support bar group;Described Oblique rope is connected between strut group and steel wire rope group;
Above-mentioned horizontal ladder also includes that stabiliser bar group, the one end of support bar group to cabin inwall along the one end that stretches with stabiliser bar group connect Connect, the other end of stabiliser bar group withstands cabin inwall;Between the stabiliser bar group and support bar group have angle, stabiliser bar group with The position of cabin inwall contact is provided with rubber blanket.
Above-mentioned hanging ladder is provided with for lifting the hoist engine of steel wire rope group;With each euphroe junction on the fixed dolly It is provided with for showing the digital display device of the current pulling force of steel wire rope.
The upper surface on above-mentioned cabin edge is provided with along cabin along along the guide rail that stretches, and the lateral surface on cabin edge is provided with along cabin along along the ditch that stretches Groove;The hanging ladder position corresponding with the upper surface on cabin edge is provided with Group;The hanging ladder position corresponding with the lateral surface on cabin edge is provided with the second roller group being hooked in groove;The hanging ladder and ship Inwall corresponding position in cabin is provided with the 3rd roller group;The braking dress for preventing hanging ladder from moving is provided with first roller group Put.Wherein brake apparatus includes connector, brake block, threaded rod and braking hand-wheel;The brake block is fixedly installed on connector Bottom, be provided with cannelure at the top of connector, one end of threaded rod rotates and is installed in cannelure, and the other end is through on hanging ladder The screwed hole of corresponding position is fixedly connected with braking hand-wheel.Wherein groove can be welded on the lateral surface on cabin edge using strip angle bar, So that strip angle bar forms groove with outer bulkhead.Certainly, other brake structures that can limit hanging ladder movement can also be used.
Used as deformation, the above-mentioned hanging ladder position corresponding with the upper surface on cabin edge is provided with the first roller for movable hook ladder Group;The hanging ladder position corresponding with the lateral surface on cabin edge is provided with the second roller group;The hanging ladder is corresponding with cabin inwall Position be provided with the 3rd roller group;The brake apparatus for preventing hanging ladder from moving is provided with first roller group;The hanging ladder It is located at the one end outside cabin to be movably hinged with for catching on the hook on cabin edge;First roller group, the second roller group and The rotating direction of three roller groups is stretched along edge along cabin;Second roller group includes turning rolls, roller group, clamping screw and compression Handwheel;The roller group is arranged on turning rolls, and turning rolls is provided with annular slot, and one end of clamping screw rotates and is installed on ring In shape draw-in groove, the other end is fixedly connected through the screwed hole of hanging ladder corresponding position with pressing handwheel.
The present invention has positive effect:(1) present invention by rope ladder and fixed dolly belowdecks portion formed one to The italic that bulkhead is inclined, the italic can help operating personnel closer to bulkhead, so as to improve cleaning efficiency and cleaning performance; (2) present configuration is simple, and operating personnel just can carry out building for washing of tanks ladder itself, convenient and swift;(3) present invention passes through Euphroe can adjust the tightening force of rope ladder, so as to improve the bearing capacity of rope ladder, it is ensured that the safety of operating personnel;(4) present invention Rope ladder is caused to become hard ladder from rope ladder by the coupling assembly in steel wire rope group, so that whole rope ladder is more solid and reliable; (5) in the present invention, steel wire rope group, pedal and coupling assembly are dismantled and assembled, convenient for collecting;(6) present invention can be square by hoist engine Just the lifting of steel wire rope group;(7) fixed dolly of the invention fixes absorption in the bilge by permanent-magnetic hoister, the reliable jail of connection Gu, easy accessibility;(8) present invention can allow operating personnel further towards bulkhead by horizontal ladder, improve cleaning performance;(9) originally In invention, horizontal ladder has obtained further stablizing effect by stabiliser bar group, it is ensured that the safety of operating personnel;(10) in the present invention Digital display device on fixed dolly can allow operating personnel intuitively to know the tightening force of current steel wire rope group, convenient and practical; (11) hanging ladder of the invention can be mounted on cabin along upper by groove and the second roller group, and pass through guide rail, the first roller group, second Roller group and the 3rd roller group realize the movement of hanging ladder, in order to be replaced and cleaned position;(12) hanging ladder of the invention can also pass through First roller group, the second roller group with pressing handwheel, the 3rd roller group and hook are mounted on cabin along upper, not only can ensure to hang The movement of ladder, and the cost input of welding guide rail can be saved.
Description of the drawings
In order that present disclosure is easier to be clearly understood, below according to specific embodiment and accompanying drawing is combined, right The present invention is described in further detail, wherein
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the structural representation of rope ladder in the present invention;
Fig. 3 is the structural representation of coupling assembly in the present invention;
Fig. 4 is the structural representation of intermediate connector in the present invention;
Fig. 5 is the structural representation of horizontal ladder in the present invention;
Fig. 6 is the structural representation of hanging ladder in the embodiment of the present invention one;
Fig. 7 is the enlarged drawing in Fig. 6 at A;
Fig. 8 is the structural representation of hanging ladder in the embodiment of the present invention two;
Fig. 9 is the enlarged drawing in Fig. 8 at B.
Specific embodiment
(embodiment one)
See that Fig. 1 to Fig. 7, the present invention include hanging ladder 1, rope ladder 2 and fixed dolly 3;One end of the hanging ladder 1 is mounted on cabin edge On, the other end stretches into cabin;The rope ladder 2 includes that steel wire rope group 21 and pedal, steel wire rope group 21 include four rectangular distributions Steel wire rope, one end that cabin is stretched into hanging ladder 1 in one end of each steel wire rope is connected, and the other end is by euphroe 4 and fixed dolly 3 Connection, stretches direction along its edge in steel wire rope group 21 and is equidistantly provided with pedal;The fixed dolly 3 is provided with for adsorbing cabin bottom Permanent-magnetic hoister 31.
Multiple coupling assemblies 5 are equipped with each steel wire rope of the steel wire rope group 21, and each pedal is by corresponding connection group Part 5 is fixedly mounted in steel wire rope group 21;The coupling assembly 5 includes expansion link group 51 and intermediate connector 52;Described flexible Bar group 51 includes that the first hollow expansion link 51-1 and the second hollow expansion link 51-2, the first expansion link 51-1 coaxially slides set Put in the second expansion link 51-2;The afterbody of the first expansion link 51-1 is provided with connection external screw thread, and the second expansion link 51-2 is leaned on The oral area that nearly first expansion link 51-1 stretches out is provided with and the connection internal thread for being connected external screw thread cooperation, the tail of the second expansion link 51-2 End is fixed with attaching nut;Intermediate connector 52 is provided between the adjacent expansion link group 51;The intermediate connector 52 Include linking into an integrated entity including the first contiguous block 52-1 and the second contiguous block 52-2 as limiting section, the first contiguous block 52-1 Threaded joints and cone connection, the second contiguous block 52-2 are provided with the bellmouth coordinated with cone connection, taper connection The bottom end face in portion is provided with draw-in groove 52-3;The second contiguous block 52-2 is sleeved on the first contiguous block 52-1, threaded connection Stretch out from the bellmouth of the second contiguous block 52-2 and through the above connection through hole and the intermediate connector 52 on pedal in portion Attaching nut on two expansion link 51-2 is connected, and pedal is installed between attaching nut and the second contiguous block 52-2;Described The head of the first expansion link 51-1 below intermediate connector 52 is installed in the draw-in groove 52-3 of cone connection.Expansion link group 51 Fixed by connecting external screw thread and connection screw-internal thread fit after stretching, and caused with the upper and lower assembling of intermediate connector 52 respectively Rope ladder 2 becomes hard ladder from rope ladder, improves security.
In order to more preferable near cabin inwall, above-mentioned washing of tanks ladder also includes horizontal ladder 6;The horizontal ladder 6 includes horizontally disposed Support bar group 61 and stabiliser bar group 62, one end of support bar group 61 are fixedly mounted in steel wire rope group 21, and the other end is into cabin Along stretching and being connected with one end of stabiliser bar group 62, the other end of stabiliser bar group 62 withstands cabin inwall to wall;The stabiliser bar group 62 There is angle between support bar group 61, the position that stabiliser bar group 62 is contacted with cabin inwall is provided with rubber blanket;The support bar Pedal and guardrail are equipped with group 61;Oblique rope (63) is connected between the support bar group 61 and steel wire rope group (21);
The hanging ladder 1 is provided with for lifting the hoist engine of steel wire rope group 21;With each euphroe 4 on the fixed dolly 3 Junction is provided with for showing the digital display device of the current pulling force of steel wire rope.
The upper surface on the cabin edge is provided with along cabin along along the guide rail that stretches, and the lateral surface on cabin edge is provided with along cabin along along the ditch that stretches Groove;The position corresponding with the upper surface on cabin edge of the hanging ladder 1 is provided with Group 11;The position corresponding with the lateral surface on cabin edge of the hanging ladder 1 is provided with the second roller group 12 being hooked in groove;The hanging ladder 1 position corresponding with cabin inwall is provided with the 3rd roller group 13;It is provided with first roller group 11 for preventing hanging ladder 1 from moving Dynamic brake apparatus.
Wherein brake apparatus includes connector, brake block, threaded rod and braking hand-wheel;The brake block is fixedly installed on company The bottom of fitting, is provided with cannelure at the top of connector, one end of threaded rod rotates and is installed in cannelure, and the other end is through extension On ladder, the screwed hole of corresponding position is fixedly connected with braking hand-wheel.Wherein groove can be welded on the outside on cabin edge using strip angle bar Face so that strip angle bar forms groove with outer bulkhead.Certainly, other brake structures that can limit hanging ladder movement can also be transported With.
(embodiment two)
See that Fig. 8 and Fig. 9, the position corresponding with the upper surface on cabin edge of hanging ladder 1 are provided with the first roller for movable hook ladder 1 Group 11;The position corresponding with the lateral surface on cabin edge of the hanging ladder 1 is provided with the second roller group 12;The hanging ladder 1 and cabin inwall Corresponding position is provided with the 3rd roller group 13;The braking dress for preventing hanging ladder 1 from moving is provided with first roller group 11 Put;The hanging ladder 1 is located at the one end outside cabin and is movably hinged with for catching on the hook 14 on cabin edge;First roller group 11st, the rotating direction of the second roller group 12 and the 3rd roller group 13 is stretched along edge along cabin;Second roller group 12 includes roller Frame, roller group, clamping screw and pressing handwheel;The roller group is arranged on turning rolls, and turning rolls is provided with annular slot, pressure One end of tight screw rod rotates and is installed in annular slot, and the other end is fixed with pressing handwheel through the screwed hole of hanging ladder corresponding position and connected Connect.Other are identical with embodiment one.
Particular embodiments described above, has been carried out to the purpose of the present invention, technical scheme and beneficial effect further in detail Describe bright, the be should be understood that specific embodiment that the foregoing is only the present invention in detail, be not limited to the present invention, all Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements that is done etc., should be included in the guarantor of the present invention Within the scope of shield.

Claims (8)

1. a kind of washing of tanks is terraced;It is characterized in that:Including hanging ladder (1), rope ladder (2) and fixed dolly (3);The one of hanging ladder (1) End is mounted on cabin along upper, and the other end stretches into cabin;Described rope ladder (2) include steel wire rope group (21) and pedal, steel wire rope group (21) One end one end for stretching into cabin with hanging ladder (1) be connected, the other end is connected with fixed dolly (3), along which in steel wire rope group (21) Pedal is equidistantly provided with along direction is stretched;Fixed dolly (3) are provided with for adsorbing the permanent-magnetic hoister (31) of cabin bottom;
Described steel wire rope group (21) include that many steel wire ropes, one end that cabin is stretched into hanging ladder (1) in one end of each steel wire rope are connected, The other end is connected with fixed dolly (3) by euphroe (4);
Multiple coupling assemblies (5) are equipped with each steel wire rope of steel wire rope group (21), and each pedal is by corresponding connection group Part (5) is fixedly mounted in steel wire rope group (21);Described coupling assembly (5) include expansion link group (51) and intermediate connector (52);Described expansion link group (51) include hollow the first expansion link (51-1) and hollow the second expansion link (51-2), first Expansion link (51-1) coaxially slide is arranged in the second expansion link (51-2);The afterbody of the first expansion link (51-1) is provided with company External screw thread is connect, the second expansion link (51-2) is provided near the oral area that the first expansion link (51-1) stretches out and is connected external screw thread cooperation Connection internal thread, the tail end of the second expansion link (51-2) are fixed with attaching nut;It is provided between adjacent expansion link group (51) Intermediate connector (52);Described intermediate connector (52) include threaded joints, limiting section and draw-in groove (52-3);The screw thread connects Socket part is matched somebody with somebody through the attaching nut on the second expansion link (51-2) above the connection through hole on pedal and intermediate connector (52) Connection is closed, pedal is installed between attaching nut and limiting section;The first expansion link (51- below intermediate connector (52) 1) head is installed in the draw-in groove (52-3) of intermediate connector (52);The steel wire rope from the first expansion link (51-1), second Expansion link (51-2) and intermediate connector (52) wear and mistake.
2. a kind of washing of tanks according to claim 1 is terraced, it is characterised in that:Described intermediate connector (52) include the first connection Block (52-1) and the second contiguous block (52-2) as limiting section, the first contiguous block (52-1) include that the screw thread for linking into an integrated entity connects Socket part and cone connection, the second contiguous block (52-2) are provided with the bellmouth coordinated with cone connection, cone connection Bottom end face is provided with draw-in groove (52-3);Second contiguous block (52-2) is sleeved on the first contiguous block (52-1), and screw thread connects Socket part is stretched out from the bellmouth of the second contiguous block (52-2) and through on the connection through hole on pedal and intermediate connector (52) Attaching nut on second expansion link (51-2) of side is connected, and pedal is installed on attaching nut and the second contiguous block (52-2) Between;The head of the first expansion link (51-1) below intermediate connector (52) is installed on the draw-in groove of cone connection (52-3) in.
3. a kind of washing of tanks according to claim 2 is terraced, it is characterised in that:Described steel wire rope group (21) are rectangular including four The steel wire rope of distribution.
4. according to claims 1 to 3, a kind of one of them described washing of tanks is terraced, it is characterised in that:Also include horizontal ladder (6);Described Horizontal ladder (6) includes that horizontally disposed support bar group (61), one end of support bar group (61) are fixedly mounted in steel wire rope group (21), The other end is stretched to cabin inwall edge;Pedal and guardrail are equipped with support bar group (61);Support bar group (61) and steel Oblique rope (63) is connected between cord group (21).
5. a kind of washing of tanks according to claim 4 is terraced, it is characterised in that:The horizontal ladder (6) also includes stabiliser bar group (62), Support bar group (61) is connected with one end of stabiliser bar group (62) to cabin inwall along the one end that stretches, the other end of stabiliser bar group (62) Withstand cabin inwall;Have in angle, stabiliser bar group (62) and cabin between stabiliser bar group (62) and support bar group (61) The position of wall contact is provided with rubber blanket.
6. a kind of washing of tanks according to claim 5 is terraced, it is characterised in that:Hanging ladder (1) is provided with for lifting steel wire The hoist engine of rope group (21);It is provided with each euphroe (4) junction on fixed dolly (3) for showing that steel wire rope currently draws The digital display device of power.
7. a kind of washing of tanks according to claim 6 is terraced, it is characterised in that:The upper surface on the cabin edge is provided with stretches along edge along cabin Guide rail, the lateral surface on cabin edge is provided with along cabin along along the groove that stretches;Hanging ladder (1) position corresponding with the upper surface on cabin edge It is provided with;Hanging ladder (1) is corresponding with the lateral surface on cabin edge Position be provided with the second roller group (12) being hooked in groove;Hanging ladder (1) position corresponding with cabin inwall is provided with Three roller groups (13);First roller group (11) place is provided with the brake apparatus for preventing hanging ladder (1) mobile.
8. a kind of washing of tanks according to claim 6 is terraced, it is characterised in that:Hanging ladder (1) is relative with the upper surface on cabin edge The position that answers is provided with the first roller group (11) for movable hook ladder (1);Hanging ladder (1) is corresponding with the lateral surface on cabin edge Position is provided with the second roller group (12);Hanging ladder (1) position corresponding with cabin inwall is provided with the 3rd roller group (13);Institute State the first roller group (11) place and be provided with the brake apparatus for preventing hanging ladder (1) mobile;Described hanging ladder (1) is located at outside cabin One end is movably hinged with for catching on the hook (14) on cabin edge;First roller group (11), the second roller group (12) and the 3rd The rotating direction of roller group (13) is stretched along edge along cabin;Described second roller group (12) include turning rolls, roller group, clamping screw And pressing handwheel;The roller group is arranged on turning rolls, and turning rolls is provided with annular slot, and one end of clamping screw rotates card It is mounted in annular slot, the other end is fixedly connected through the screwed hole of hanging ladder corresponding position with pressing handwheel.
CN201510234478.5A 2015-05-08 2015-05-08 A kind of washing of tanks ladder Active CN104859792B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN104859792B true CN104859792B (en) 2017-03-15

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207078293U (en) * 2017-08-15 2018-03-09 广船国际有限公司 A kind of inclined ladder and ship
CN110242206A (en) * 2019-06-24 2019-09-17 中船澄西船舶修造有限公司 A kind of movable hook ladder for Shipbuilding Work

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3498410A (en) * 1968-10-24 1970-03-03 Mayfair Eng Co Boat ladder
CN2764992Y (en) * 2005-02-17 2006-03-15 诸暨市昌是信磁电有限公司 Strong magnetic attraction device
CN101076475A (en) * 2004-12-14 2007-11-21 金南雄 Device for connecting rope with pedal, rope ladder comprising the same device
CN101463706A (en) * 2008-12-31 2009-06-24 曹先锋 Broadside suspension ladder
CN102493760A (en) * 2011-11-21 2012-06-13 日立电梯(中国)有限公司 Pull-up ladder stand
CN102953671A (en) * 2011-08-25 2013-03-06 马刘陈 Protection-type combined climbing pole
CN204775837U (en) * 2015-05-08 2015-11-18 泰州市金泰船舶设备有限公司 Washing of tanks ladder

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3498410A (en) * 1968-10-24 1970-03-03 Mayfair Eng Co Boat ladder
CN101076475A (en) * 2004-12-14 2007-11-21 金南雄 Device for connecting rope with pedal, rope ladder comprising the same device
CN2764992Y (en) * 2005-02-17 2006-03-15 诸暨市昌是信磁电有限公司 Strong magnetic attraction device
CN101463706A (en) * 2008-12-31 2009-06-24 曹先锋 Broadside suspension ladder
CN102953671A (en) * 2011-08-25 2013-03-06 马刘陈 Protection-type combined climbing pole
CN102493760A (en) * 2011-11-21 2012-06-13 日立电梯(中国)有限公司 Pull-up ladder stand
CN204775837U (en) * 2015-05-08 2015-11-18 泰州市金泰船舶设备有限公司 Washing of tanks ladder

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