CN110485259A - A kind of tide is adaptively gone on board equipment - Google Patents

A kind of tide is adaptively gone on board equipment Download PDF

Info

Publication number
CN110485259A
CN110485259A CN201910757598.1A CN201910757598A CN110485259A CN 110485259 A CN110485259 A CN 110485259A CN 201910757598 A CN201910757598 A CN 201910757598A CN 110485259 A CN110485259 A CN 110485259A
Authority
CN
China
Prior art keywords
tail
gangway ladder
telescopic gangway
fluid pressure
type self
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910757598.1A
Other languages
Chinese (zh)
Inventor
杜丁
杨书升
凌瑞
吕鹏飞
杨静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Gugugukou Military Civilian Integration Ship Equipment Technical Support Co Ltd
Hebei Hanguang Heavy Industry Ltd
Original Assignee
Qingdao Gugugukou Military Civilian Integration Ship Equipment Technical Support Co Ltd
Hebei Hanguang Heavy Industry Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao Gugugukou Military Civilian Integration Ship Equipment Technical Support Co Ltd, Hebei Hanguang Heavy Industry Ltd filed Critical Qingdao Gugugukou Military Civilian Integration Ship Equipment Technical Support Co Ltd
Priority to CN201910757598.1A priority Critical patent/CN110485259A/en
Publication of CN110485259A publication Critical patent/CN110485259A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00Movable or portable bridges; Floating bridges
    • E01D15/24Bridges or similar structures, based on land or on a fixed structure and designed to give access to ships or other floating structures
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)

Abstract

The present invention provides a kind of tide and adaptively goes on board equipment, including motor-driven transfer trolley, fluid pressure type self-raising platform, tail telescopic gangway ladder, main telescopic gangway ladder, mounting attachment, Hydraulic system and control system, fluid pressure type self-raising platform is installed on motor-driven transfer trolley, main telescopic gangway ladder is supported in the top of fluid pressure type self-raising platform by main hydraulic cylinder, and one end is articulated on fluid pressure type self-raising platform, the other end connects mounting attachment;One end of tail telescopic gangway ladder is fixed on fluid pressure type self-raising platform, and tail washings cylinder pressure is connected between tail telescopic gangway ladder and fluid pressure type self-raising platform;Control system is used to control the lifting of fluid pressure type self-raising platform, controls main hydraulic cylinder movement to drive the pitching movement of main telescopic gangway ladder, the pitching movement for acting to drive tail telescopic gangway ladder of control tail washings cylinder pressure and stretching for control master/tail telescopic gangway ladder.Adaptivity of the present invention is strong, applied widely, reliable operation, can satisfy the requirement of personnel and the upper and lower warship of part goods and materials after aircraft carrier pulls in shore.

Description

A kind of tide is adaptively gone on board equipment
Technical field
It adaptively goes on board equipment the present invention relates to a kind of tide, suitable for the upper of personnel after pulling in shore to aircraft carrier and part goods and materials Lower warship.
Background technique
It is unpowered currently, existing gangway ladder is seperated mechanical structure, after aircraft carrier pulls in shore, only with the preceding tetramethyl of aircraft carrier Connection, itself time is long, and mobility is poor, need to use ancillary equipment, is now difficult to meet safe make in actual use With requiring.
Summary of the invention
The shortcomings that in order to overcome the prior art, the present invention provide a kind of tide and adaptively go on board equipment, it is overall structure, Mobility strong is unfolded and removes to receive time saving and energy saving, easy to operate, reliable operation, can overlap aircraft carrier tetramethyl platform, flight-deck platform And other location platforms, it can satisfy the requirement of personnel and the upper and lower warship of part goods and materials after aircraft carrier pulls in shore.
The technical scheme adopted by the invention to solve the technical problem is that:
A kind of tide is adaptively gone on board equipment, including motor-driven transfer trolley, fluid pressure type self-raising platform, tail telescopic gangway ladder, master Telescopic gangway ladder, mounting attachment, Hydraulic system and control system, wherein the hydraulic system includes main hydraulic cylinder and tail washings cylinder pressure;
The fluid pressure type self-raising platform is installed on motor-driven transfer trolley, and the main telescopic gangway ladder is supported by main hydraulic cylinder In the top of fluid pressure type self-raising platform, and one end is articulated on fluid pressure type self-raising platform, and the other end connects mounting attachment;It is described One end of tail telescopic gangway ladder is fixed on fluid pressure type self-raising platform, and between tail telescopic gangway ladder and fluid pressure type self-raising platform Connect tail washings cylinder pressure;
The control system is used to control the lifting of fluid pressure type self-raising platform, and control main hydraulic cylinder acts that master is driven to stretch The movement of the pitching movement of contracting gangway ladder, control tail washings cylinder pressure is stretched come the pitching movement for driving tail telescopic gangway ladder and control master/tail Contracting gangway ladder stretches.
Further, tail telescopic gangway ladder of the present invention is two-stage telescopic gangway ladder, and the main telescopic gangway ladder is flexible for three-level Gangway ladder.
Further, the invention also includes the main terraced angular transducers for measuring main terraced pitch angle to bow with measurement tail ladder The tail ladder angular transducer of elevation angle degree;
When flood tide hull floats or ebb tide hull is fallen after rise, the control system is bowed according to what main terraced angular transducer detected Elevation angle variable quantity, control fluid pressure type self-raising platform rise or fall, and main terraced pitch angle is made to be restored to initial value;
When rising or falling of fluid pressure type self-raising platform, the pitching under gravity or ground thrust effect of tail telescopic gangway ladder are transported It is dynamic, when tail ladder angular transducer pitch angle detected exceeds setting range, the control system control tail washings cylinder pressure and tail The overhanging or retraction of telescopic gangway ladder, makes tail ladder pitch angle restore initial value.
Further, the invention also includes for measuring horizontal distance between mounting attachment end and naval vessel platform anchors Horizontal laser light distance measuring sensor, when hull is displaced outwardly or moves inward from bunding, the control system is according to horizontal laser light The distance change amount of distance measuring sensor detection controls the overhanging of main telescopic gangway ladder or retraction, surveys horizontal laser light distance measuring sensor Amount result is restored to initial value.
Further, the invention also includes swash for measuring the vertical of vertical range between mounting attachment end and naval vessel platform Ligh-ranging sensor;
When flood tide hull floats or ebb tide hull is fallen after rise, the control system is detected according to vertical laser distance measuring sensor Distance change amount, control fluid pressure type self-raising platform rises or falls, and main terraced pitch angle is made to be restored to initial value;
When rising or falling of fluid pressure type self-raising platform, the pitching under gravity or ground thrust effect of tail telescopic gangway ladder are transported It is dynamic, when tail ladder angular transducer pitch angle detected exceeds setting range, the control system control tail washings cylinder pressure and tail The overhanging or retraction of telescopic gangway ladder, makes tail ladder pitch angle restore initial value.
Beneficial effect
First, adaptivity of the present invention is strong, applied widely, reliable operation, can satisfy personnel and portion after aircraft carrier pulls in shore Divide the requirement of goods and materials or more warship.
Second, the present invention automatically controls the movement of main telescopic gangway ladder and tail telescopic gangway ladder by sensor detection signal, from And adapt to the variation of hull caused by tide.
Detailed description of the invention
Fig. 1 is that tide of the present invention is adaptively gone on board equipment configuration schematic diagram;
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described.
A kind of tide of the present embodiment is adaptively gone on board equipment, including motor-driven transfer trolley 1, fluid pressure type self-raising platform 2, tail are stretched Contracting gangway ladder 3, main telescopic gangway ladder 4, mounting attachment 5, hydraulic system 6 and control system 7, wherein the hydraulic system includes that master is hydraulic Cylinder and tail washings cylinder pressure, the tail telescopic gangway ladder 3 are preferably chosen for second level telescopic gangway ladder, and the main telescopic gangway ladder 4 is preferably chosen for Three-level telescopic gangway ladder.
Fluid pressure type self-raising platform 2 is installed on motor-driven transfer trolley 1, and the main telescopic gangway ladder 4 is supported by main hydraulic cylinder In the top of fluid pressure type self-raising platform 2, and one end is articulated on fluid pressure type self-raising platform 2, and the other end connects mounting attachment 5; One end of the tail telescopic gangway ladder 3 is fixed on fluid pressure type self-raising platform 2, and is risen automatically in tail telescopic gangway ladder 3 with fluid pressure type It drops and connects tail washings cylinder pressure between platform 2;The control system is used to control the lifting of fluid pressure type self-raising platform 2, and control master is hydraulic Cylinder acts the pitching movement to drive main telescopic gangway ladder 4, and the movement of control tail washings cylinder pressure is to drive the pitching of tail telescopic gangway ladder 3 to transport It is dynamic, and the main telescopic gangway ladder 4 of control and tail telescopic gangway ladder 3 is flexible.
The present embodiment, motor-driven transfer trolley 1 are connected to the least significant end of integral device, and the equipment being responsible under off working state turns Fortune, fluid pressure type self-raising platform 2 are responsible for the height adjustment of integral device, and two-stage telescopic gangway ladder 3 adapts to the height tune of hoistable platform Section, three-level telescopic gangway ladder 4 itself carry out angular adjustment, in conjunction with the adjusting of self-raising platform 2, adapt to the height of aircraft carrier overlap joint platform Degree, mounting attachment 5 are overlapped with aircraft carrier, and hydraulic system 6 provides the power of action of each part, and control system 7 completes integral device Automatic control and operation.
When initially installing and using, integral device is transported to suitable position of going on board, three-level telescopic gangway ladder by motor-driven transfer trolley 1 4 connect with mounting attachment 5, give system power supply, and hydraulic system 6 and control system 7 are started to work, and adjust three-level telescopic gangway ladder 4 to water It is flat, it adjusts 2 height of fluid pressure type self-raising platform to 5 end of mounting attachment and is higher than practical overlap joint platform, adjust three-level telescopic gangway ladder 4 Extension elongation makes 5 end of mounting attachment can be with practical overlap joint platform overlap joint, and adjusting 2 height of fluid pressure type self-raising platform makes mounting attachment 5 End lap adjusts the extension elongation and pitch angle of two-stage telescopic gangway ladder 3, achieves between ground and platform on platform Overlap joint.
Automatic control in opening control 7 on control panel makes integral device adapt to the phase of aircraft carrier and harbour platform To position, specifically:
Situation one, at high tides, hull float, and main ladder is pushed to face upward, vertical laser distance measuring sensor or main terraced angle sensor Device initial value changes, and signal is delivered to PLC controller, and by internal arithmetic, control system is delivered to signal is controlled Hydraulic proportion valve, control lifting hydraulic cylinder movement, rises workbench, until main terraced pitch angle restores initial value, meanwhile, liquid The rising of pressure type self-raising platform, tail telescopic gangway ladder pitching movement under the effect of gravity, when tail ladder angular transducer is detected Pitch angle exceeds setting range, controls tail washings cylinder pressure and tail ladder telescopic hydraulic cylinder is overhanging, until tail ladder pitch angle restores initial Value.
When situation two, ebb tide, hull is fallen after rise, main ladder test, at the beginning of vertical laser distance measuring sensor or main terraced angular transducer Initial value changes, and signal is delivered to PLC controller, by internal arithmetic, PLC controller will control signal be delivered to it is hydraulic Proportioning valve, control lifting hydraulic cylinder movement, declines workbench, until main terraced pitch angle restores initial value, meanwhile, fluid pressure type The decline of self-raising platform, tail telescopic gangway ladder pitching movement under ground thrust effect, when tail ladder angular transducer is detected Pitch angle exceeds setting range, the control system control tail washings cylinder pressure and tail telescopic gangway ladder retraction, makes tail ladder pitch angle Restore initial value.
When situation three, hull are traversing outward from bunding, horizontal laser light distance measuring sensor initial value changes, and signal is defeated It send to PLC controller, by internal arithmetic, PLC controller is delivered to hydraulic proportion valve for signal is controlled, and controls the flexible liquid of main ladder Cylinder pressure is overhanging, until horizontal laser light distance measuring sensor restores initial value.
When situation four, hull are inwardly traversing from bunding, horizontal laser light distance measuring sensor initial value changes, and signal is defeated It send to PLC controller, by internal arithmetic, PLC controller is delivered to hydraulic proportion valve for signal is controlled, and controls the flexible liquid of main ladder Cylinder pressure retraction, until horizontal laser light distance measuring sensor restores initial value.
When situation five, hull comprehensive change, above-mentioned each function combines interaction.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention. All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention Within protection scope.

Claims (5)

  1. The equipment 1. a kind of tide is adaptively gone on board, which is characterized in that including motor-driven transfer trolley (1), fluid pressure type self-raising platform (2), tail telescopic gangway ladder (3), main telescopic gangway ladder (4), mounting attachment (5), hydraulic system (6) and control system (7), wherein described Hydraulic system includes main hydraulic cylinder and tail washings cylinder pressure;
    The fluid pressure type self-raising platform (2) is installed on motor-driven transfer trolley (1), and the main telescopic gangway ladder (4) is hydraulic by master Cylinder is supported in the top of fluid pressure type self-raising platform (2), and one end is articulated on fluid pressure type self-raising platform (2), and the other end connects Connect mounting attachment (5);One end of the tail telescopic gangway ladder (3) is fixed on fluid pressure type self-raising platform (2), and in tail telescopic gangway ladder (3) tail washings cylinder pressure is connected between fluid pressure type self-raising platform (2);
    The control system is used to control the lifting of fluid pressure type self-raising platform (2), and control main hydraulic cylinder acts that master is driven to stretch The pitching movement of contracting gangway ladder (4) controls the movement of tail washings cylinder pressure to drive the pitching movement and control of tail telescopic gangway ladder (3) Master/tail telescopic gangway ladder stretches.
  2. 2. tide is adaptively gone on board equipment according to claim 1, which is characterized in that the tail telescopic gangway ladder (3) is two-stage Telescopic gangway ladder, the main telescopic gangway ladder (4) are three-level telescopic gangway ladder.
  3. 3. tide is adaptively gone on board equipment according to claim 1, which is characterized in that further include for measuring main terraced pitch angle The tail ladder angular transducer of the main terraced angular transducer and measurement tail ladder pitch angle of degree;
    When flood tide hull floats or ebb tide hull is fallen after rise, pitch angle that the control system is detected according to main terraced angular transducer Variable quantity, control fluid pressure type self-raising platform (2) rise or fall, and main terraced pitch angle is made to be restored to initial value;
    When rising or falling of fluid pressure type self-raising platform (2), tail telescopic gangway ladder (3) pitching under gravity or ground thrust effect Movement, when tail ladder angular transducer pitch angle detected exceeds setting range, control system control tail washings cylinder pressure and The overhanging or retraction of tail telescopic gangway ladder (3), makes tail ladder pitch angle restore initial value.
  4. 4. tide is adaptively gone on board equipment according to claim 1, which is characterized in that further include for measuring mounting attachment (5) The horizontal laser light distance measuring sensor of horizontal distance between end and naval vessel platform anchors, when hull be displaced outwardly from bunding or to When interior mobile, the distance change amount that the control system is detected according to horizontal laser light distance measuring sensor controls main telescopic gangway ladder (4) It is overhanging or retraction, so that horizontal laser light distance measuring sensor measurement result is restored to initial value.
  5. 5. tide is adaptively gone on board equipment according to claim 1, which is characterized in that further include for measuring mounting attachment (5) The vertical laser distance measuring sensor of vertical range between end and naval vessel platform;
    When flood tide hull float or ebb tide hull fall after rise when, the control system according to vertical laser distance measuring sensor detect away from From variable quantity, rising or falling for fluid pressure type self-raising platform (2) is controlled, main terraced pitch angle is made to be restored to initial value;
    When rising or falling of fluid pressure type self-raising platform (2), tail telescopic gangway ladder (3) pitching under gravity or ground thrust effect Movement, when tail ladder angular transducer pitch angle detected exceeds setting range, control system control tail washings cylinder pressure and The overhanging or retraction of tail telescopic gangway ladder (3), makes tail ladder pitch angle restore initial value.
CN201910757598.1A 2019-08-16 2019-08-16 A kind of tide is adaptively gone on board equipment Pending CN110485259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910757598.1A CN110485259A (en) 2019-08-16 2019-08-16 A kind of tide is adaptively gone on board equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910757598.1A CN110485259A (en) 2019-08-16 2019-08-16 A kind of tide is adaptively gone on board equipment

Publications (1)

Publication Number Publication Date
CN110485259A true CN110485259A (en) 2019-11-22

Family

ID=68551372

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910757598.1A Pending CN110485259A (en) 2019-08-16 2019-08-16 A kind of tide is adaptively gone on board equipment

Country Status (1)

Country Link
CN (1) CN110485259A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113818419A (en) * 2021-08-31 2021-12-21 长江三峡通航管理局 Ship lock floating type access door traffic system
CN114855694A (en) * 2022-04-29 2022-08-05 中交第三航务工程勘察设计院有限公司 Wharf floating type roll-on-roll-off facility adapting to large tidal range condition and operation method

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503836A1 (en) * 1985-02-05 1986-10-16 Ekke 2103 Hamburg Pahl Telescopic stairway
CN201202086Y (en) * 2007-12-25 2009-03-04 交通部水运科学研究所 Moving lifting type passenger boarding bridge
US8566992B1 (en) * 2010-05-10 2013-10-29 Patrick Stokes Extendable and retractable work platform
CN105966559A (en) * 2016-06-07 2016-09-28 江苏科技大学 Landing device and method with wave compensation function
CN107856815A (en) * 2017-11-17 2018-03-30 佛山市榕岸海洋工程装备有限公司 A kind of sea gangway for wind power platform
CN207360527U (en) * 2017-07-11 2018-05-15 苏州瀚隆石化装备有限公司 A kind of novel intelligent boarding ladder
CN108189974A (en) * 2017-11-21 2018-06-22 湖北华舟重工应急装备股份有限公司 A kind of motor driven is gone on board equipment
CN108569374A (en) * 2017-07-06 2018-09-25 中国国际海运集装箱(集团)股份有限公司 It connects ship mouth, connect the boarding bridge of ship mouth with this and the control method of boarding bridge
CN109367714A (en) * 2018-11-07 2019-02-22 上海宝冶冶金工程有限公司 Boarding ladder
CN109665068A (en) * 2019-01-02 2019-04-23 江阴市黄山船舶配件有限公司 Device of going on board with scissors lift platform
CN208802117U (en) * 2018-08-08 2019-04-30 中国舰船研究设计中心 A kind of movable up-down harbour is gone on board device
CN209208985U (en) * 2018-11-21 2019-08-06 中国船舶重工集团公司第七一九研究所 A kind of transhipment fore-and-aft gangway suitable for exsiccation side of a ship difference ship

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503836A1 (en) * 1985-02-05 1986-10-16 Ekke 2103 Hamburg Pahl Telescopic stairway
CN201202086Y (en) * 2007-12-25 2009-03-04 交通部水运科学研究所 Moving lifting type passenger boarding bridge
US8566992B1 (en) * 2010-05-10 2013-10-29 Patrick Stokes Extendable and retractable work platform
CN105966559A (en) * 2016-06-07 2016-09-28 江苏科技大学 Landing device and method with wave compensation function
CN108569374A (en) * 2017-07-06 2018-09-25 中国国际海运集装箱(集团)股份有限公司 It connects ship mouth, connect the boarding bridge of ship mouth with this and the control method of boarding bridge
CN207360527U (en) * 2017-07-11 2018-05-15 苏州瀚隆石化装备有限公司 A kind of novel intelligent boarding ladder
CN107856815A (en) * 2017-11-17 2018-03-30 佛山市榕岸海洋工程装备有限公司 A kind of sea gangway for wind power platform
CN108189974A (en) * 2017-11-21 2018-06-22 湖北华舟重工应急装备股份有限公司 A kind of motor driven is gone on board equipment
CN208802117U (en) * 2018-08-08 2019-04-30 中国舰船研究设计中心 A kind of movable up-down harbour is gone on board device
CN109367714A (en) * 2018-11-07 2019-02-22 上海宝冶冶金工程有限公司 Boarding ladder
CN209208985U (en) * 2018-11-21 2019-08-06 中国船舶重工集团公司第七一九研究所 A kind of transhipment fore-and-aft gangway suitable for exsiccation side of a ship difference ship
CN109665068A (en) * 2019-01-02 2019-04-23 江阴市黄山船舶配件有限公司 Device of going on board with scissors lift platform

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113818419A (en) * 2021-08-31 2021-12-21 长江三峡通航管理局 Ship lock floating type access door traffic system
CN114855694A (en) * 2022-04-29 2022-08-05 中交第三航务工程勘察设计院有限公司 Wharf floating type roll-on-roll-off facility adapting to large tidal range condition and operation method
CN114855694B (en) * 2022-04-29 2023-10-03 中交第三航务工程勘察设计院有限公司 Dock floating roll-on facility suitable for large tidal range condition and operation method

Similar Documents

Publication Publication Date Title
CN102661231B (en) Novel floating eagle type wave power generating device with semi-submerging characteristic
US7234409B2 (en) Vessel for transporting wind turbines, methods of moving a wind turbine, and a wind turbine for an off-shore wind farm
CA2520219C (en) A vessel for transporting wind turbines, methods of moving a wind turbine, and a wind turbine for an off-shore wind farm
CN105923110A (en) Wave compensation intelligent embarkation device
US2955626A (en) Pipe lines for loading and unloading ships and other vessels
CN110485259A (en) A kind of tide is adaptively gone on board equipment
CN102278291B (en) Construction method and special transport and installation ship for marine transport and installation of wind-driven generator
CN110450910A (en) A kind of tide is adaptively gone on board control system
KR101505725B1 (en) Marine floating structures of self buoyancy control device
US3409055A (en) Apparatus for handling liquid cargo
CN105083493B (en) A kind of liftboats depressed place
NO20161753A1 (en) A conveying system and method for approximately continuous operation of an electrically powered vessel
US3285213A (en) Floating structures
CN112026580A (en) Shipborne container type battery replacement system
NO336575B1 (en) Device and method for interconnecting a tanker and a floating loading or unloading terminal
CN105645296A (en) High-pile type lifting yacht docking wharf device
CN206288206U (en) A kind of inland river green roll-on berth synthesis energy saving chain of rings landing stage
CN112960074A (en) Ship swinging balance system and method
CN109501964B (en) Hydraulic tidal range compensation mooring device
KR101793231B1 (en) Transferable embodiment on water reduced resistance to wave force
US3690108A (en) Stable offshore structures
CN210126612U (en) Side door device capable of automatically retracting and adjusting height
CN104420453A (en) Integral jointing method of cantilever beam of self-elevating drilling platform
CN204150216U (en) Novel climbing boat equipment
CN220924468U (en) Floating dock for lake

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
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20191122