CN112593841A - Novel boarding ladder - Google Patents
Novel boarding ladder Download PDFInfo
- Publication number
- CN112593841A CN112593841A CN202011464006.6A CN202011464006A CN112593841A CN 112593841 A CN112593841 A CN 112593841A CN 202011464006 A CN202011464006 A CN 202011464006A CN 112593841 A CN112593841 A CN 112593841A
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- CN
- China
- Prior art keywords
- ladder
- fixed
- platform
- hinged support
- movable
- 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.)
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- 230000000694 effects Effects 0.000 claims 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
- E06C5/02—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members
- E06C5/04—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic
- E06C5/06—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic by piston and cylinder, or equivalent means, operated by a pressure medium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
- E06C5/32—Accessories, e.g. brakes on ladders
- E06C5/42—Devices for altering inclination; Latching devices therefor ; Balancing arrangements
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
- E06C5/32—Accessories, e.g. brakes on ladders
- E06C5/44—Other accessories on ladders, e.g. acoustical signalling devices, dismountable switchboards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Ladders (AREA)
Abstract
The invention discloses a novel boarding ladder, which comprises an underframe structure, a commercial chassis, a small fixed platform and a flange plate, wherein the underframe structure is provided with 3 leg supporting structures, the upper part of the rear end of the underframe structure is connected with a sliding rail mechanism through a bolt, the side edge of the front end of the underframe structure is connected with the commercial chassis through a bolt, the commercial chassis is fixed at the bottom of the underframe structure, the right side of the small fixed platform is connected with a fixed ladder, the right side of the fixed ladder is connected with a large fixed platform, a movable platform is arranged below the large fixed platform, a movable ladder is arranged above the large fixed platform, and the lower end of the large fixed platform is fixed on the underframe structure through the flange plate. This novel boarding ladder is provided with slide rail mechanism and movable platform, is convenient for drive movable platform through flexible hydro-cylinder and removes for the gyro wheel structure of movable platform bottom slides on slide rail mechanism, so that whole movable ladder is fine remove, transport and transportation work.
Description
Technical Field
The invention relates to the technical field of port equipment, in particular to a novel boarding ladder.
Background
Along with the development of people's standard of living and science and technology, people's tourism also becomes the normality, take the cruise ship tourism also more and more popular, this makes the cruise ship pier need install the equipment that supplies the passenger to walk around the steamboat, has consequently just had the boarding ladder in the market, the kind of the boarding ladder on the market at present is many, but still has some weak points when using, for example:
the existing boarding ladder is complex in use steps and operation, large in size and inconvenient to move, carry and store, and the existing boarding ladder is fixed in structure and inconvenient to adapt to ship bodies of different sizes;
we have therefore proposed a new boarding ladder in order to solve the problems set out above.
Disclosure of Invention
The invention aims to provide a novel boarding ladder, which solves the problems that the existing boarding ladder in the market is complicated in use steps, large in size and inconvenient to move, transport and store, and the existing boarding ladder is inconvenient to adapt to ship bodies of different sizes.
In order to achieve the purpose, the invention provides the following technical scheme: a novel boarding ladder comprises an underframe structure, a commercial chassis, a small fixed platform and a flange plate, wherein the underframe structure is provided with 3 leg supporting structures, the upper part of the rear end of the underframe structure is connected with a sliding rail mechanism through bolts, the side edge of the front end of the underframe structure is connected with the commercial chassis through bolts, the bottom of the underframe structure is fixed with the commercial chassis, the right side of the small fixed platform is connected with a fixed ladder, the right side of the fixed ladder is connected with a large fixed platform, a movable platform is arranged below the large fixed platform, a movable ladder is arranged above the large fixed platform, the lower end of the large fixed platform is fixed on the underframe structure through the flange plate, the movable platform is provided with a roller structure which is clamped with the sliding rail mechanism for sliding connection, the top of the left end of the movable platform is fixed with a first hinged support, and the lower part of the left end of the movable platform is fixed with a second hinged support and a third hinged support, and a third hinged support is arranged in front of the second hinged support, the first hinged support is connected with the movable ladder through a pin shaft, the second hinged support is connected with one end of the pitching oil cylinder, the other end of the pitching oil cylinder is connected with a fourth hinged support on the movable ladder, the bottom of the right end of the movable ladder is fixedly provided with the fourth hinged support, the third hinged support is connected with one end of the telescopic oil cylinder, and the other end of the telescopic oil cylinder is connected with the slide rail mechanism.
Preferably, the slide rail mechanism is fixed on a girder of the underframe structure through a bolt, and the length of the slide rail mechanism is smaller than that of the underframe structure.
Preferably, the small fixed platform is fixed on a side cross beam of the underframe structure through bolts, and the lowest point of the small fixed platform is lower than that of the fixed ladder.
Preferably, the movable platform forms a sliding structure with the sliding rail mechanism through the telescopic oil cylinder, and the upper surface of the movable platform is arranged in a horizontal structure.
Preferably, the ladder board has been laid to the upper surface of companion ladder, and the baffle frame is all installed to both sides around the companion ladder to the left end hinge of companion ladder installs the door that opens and shuts, and the bottom of companion ladder is fixed with and supports the piece, and the access board is installed to the left end of companion ladder simultaneously, and the companion ladder passes through every single move hydro-cylinder and constitutes revolution mechanic with fixed big platform.
Preferably, the abutting blocks are arranged in a right-angle ladder-shaped structure, and the length of the abutting blocks is smaller than that of the butt strap.
Preferably, the leg supporting structures are symmetrically provided with 3 groups of 2 in each group about the transverse central line of the chassis structure, and the leg supporting structures and the chassis structure form a lifting structure.
Preferably, the roller structure and the sliding rail mechanism are in clamping sliding connection, and the roller structure and the chassis structure form a sliding structure through the sliding rail mechanism.
Preferably, the first hinged support, the second hinged support, the third hinged support and the fourth hinged support have the same structural size, and the number of the second hinged support and the third hinged support is 2: 1 set.
Compared with the prior art, the invention has the beneficial effects that: this neotype boarding ladder:
(1) the movable ladder is convenient to drive to move through the commercial chassis and the underframe structure, so that the movable ladder is convenient to drive to move, the whole movable ladder can be conveniently moved, transported and transported, and the operation is simple and rapid;
(2) the movable ladder is convenient to mount with the movable platform through the first hinged support, and the fourth hinged support is convenient to mount with the pitching oil cylinder, so that the movable ladder is convenient to drive to rotate around the first hinged support through the pitching oil cylinder, the angle of the movable ladder is convenient to adjust, the movable ladder can conveniently lap and place loose pulleys of different types, and different use requirements are met;
(3) install the door that opens and shuts, be convenient for open and close the top of companion ladder through the door that opens and shuts, simultaneously through the setting of access board, be convenient for contact the fine with the loose pulley hull in step plate later stage and take and put, so that guarantee that step plate and loose pulley hull safety take and put the use, the person's safety walks to be convenient for later stage take, security and stability have been improved, the fine use of cooperating of being convenient for from this, simultaneously through the setting of supporting the piece, be convenient for support the piece and take with the loose pulley hull, so that guarantee that companion ladder and loose pulley hull stabilize safe placing.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic perspective view of a slide rail mechanism according to the present invention;
FIG. 3 is a schematic perspective view of a large fixed platform according to the present invention;
FIG. 4 is a schematic perspective view of the escalator of the present invention;
FIG. 5 is a schematic perspective view of a movable platform according to the present invention;
FIG. 6 is a schematic side view of the large fixed platform of the present invention;
FIG. 7 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 8 is a schematic perspective view of the top end of the escalator of the present invention;
FIG. 9 is an enlarged view of the structure at B in FIG. 1 according to the present invention.
In the figure: 1. a chassis structure; 2. a commercial chassis; 3. a slide rail mechanism; 4. fixing the small platform; 5. fixing the ladder; 6. fixing a large platform; 7. a movable platform; 8. a movable ladder; 801. a step plate; 802. a baffle frame; 803. opening and closing the door; 804. a resisting block; 805. a butt strap; 9. a telescopic oil cylinder; 10. a pitching oil cylinder; 11. a leg support structure; 12. a flange plate; 13. a roller structure; 14. a first hinge support; 15. a second hinge support; 16. a third hinge support; 17. and a fourth hinge support.
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. 1-9, the present invention provides a technical solution: a novel boarding ladder comprises an underframe structure 1, a commercial chassis 2, a sliding rail mechanism 3, a small fixed platform 4, a fixed ladder 5, a large fixed platform 6, a movable platform 7, a movable ladder 8, a step plate 801, a baffle plate frame 802, an opening and closing door 803, a resisting block 804, a butt plate 805, a telescopic oil cylinder 9, a pitching oil cylinder 10, a leg supporting structure 11, a flange plate 12, a roller structure 13, a first hinged support 14, a second hinged support 15, a third hinged support 16 and a fourth hinged support 17, wherein the underframe structure 1 is provided with 3 leg supporting structures 11, the upper part of the rear end of the underframe structure 1 is connected with the sliding rail mechanism 3 through bolts, the side edge of the front end of the underframe structure 1 is connected with the commercial chassis 2 through bolts, the bottom of the underframe structure 1 is fixed with the commercial chassis 2, the right side of the small fixed platform 4 is connected with the fixed ladder 5, and the right side of the fixed ladder 5 is connected with the large fixed platform 6, a movable platform 7 is arranged below the fixed large platform 6, a movable ladder 8 is arranged above the fixed large platform 6, the lower end of the fixed large platform 6 is fixed on the underframe structure 1 through a flange plate 12, a roller structure 13 is arranged on the movable platform 7, the roller structure 13 is in clamping sliding connection with the slide rail mechanism 3, a first hinged support 14 is fixed at the top of the left end of the movable platform 7, a second hinged support 15 and a third hinged support 16 are fixed below the left end of the movable platform 7, a third hinged support 16 is arranged in front of the second hinged support 15, the first hinged support 14 is connected with the movable ladder 8 through a pin shaft, the second hinged support 15 is connected with one end of the pitching cylinder 10, the other end of the pitching cylinder 10 is connected with the fourth hinged support 17 on the movable ladder 8, a fourth hinged support 17 is fixed at the bottom of the right end of the movable ladder 8, and the third hinged support 16 is connected with one end of the telescopic cylinder 9, and the other end of the telescopic oil cylinder 9 is connected with the slide rail mechanism 3;
the slide rail mechanism 3 is fixed on a girder of the underframe structure 1 through bolts, and the length of the slide rail mechanism 3 is smaller than that of the underframe structure 1, so that the later-stage movable platform 7 can stably slide conveniently through the arrangement of the slide rail mechanism 3;
the small fixed platform 4 is fixed on a lateral side beam of the underframe structure 1 through bolts, the lowest point of the small fixed platform 4 is lower than the lowest point of the fixed ladder 5, and a user can conveniently take the small fixed platform 4 up and down;
the movable platform 7 and the slide rail mechanism 3 form a sliding structure through the telescopic oil cylinder 9, the upper surface of the movable platform 7 is arranged in a horizontal structure, so that the movable platform 7 and the slide rail mechanism 3 form a sliding structure through the telescopic oil cylinder 9, and the upper surface of the movable platform 7 is arranged in a horizontal structure, so that the movable platform 7 drives the movable ladder 8 to move together at the later stage;
a step plate 801 is laid on the upper surface of the movable ladder 8, baffle plates 802 are mounted on the front side and the rear side of the movable ladder 8, an opening and closing door 803 is hinged to the left end of the movable ladder 8, a resisting block 804 is fixed to the bottom of the movable ladder 8, an access plate 805 is mounted at the left end of the movable ladder 8, the movable ladder 8 and the large fixed platform 6 form a rotating structure through a pitching oil cylinder 10, the step plate 801 is laid on the upper surface of the movable ladder 8, so that the movable ladder 8 can well walk on the movable ladder 8, the resisting block 804 is fixed to the bottom of the movable ladder 8, and the access plate 805 is mounted at the left end of the movable ladder 8, so that the movable ladder 8 can well overlap with a loose pulley;
the resisting block 804 is arranged in a right-angle ladder-shaped structure, the length of the resisting block 804 is smaller than that of the access board 805, the resisting block 804 is arranged in a right-angle ladder-shaped structure, and the length of the resisting block 804 is smaller than that of the access board 805, so that the resisting block 804 and the side edge of the loose pulley can be clamped conveniently;
the leg supporting structures 11 are symmetrically provided with 3 groups about the transverse central line of the chassis structure 1, each group comprises 2, the leg supporting structures 11 and the chassis structure 1 form a lifting structure, and the arrangement of the leg supporting structures 11 is convenient for improving the stability of the whole device in the later period;
the roller structure 13 and the slide rail mechanism 3 are in clamping sliding connection, the roller structure 13 and the chassis structure 1 form a sliding structure through the slide rail mechanism 3, and therefore the roller structure 13 and the slide rail mechanism 3 are in clamping sliding connection, and the roller structure 13 and the chassis structure 1 form a sliding structure through the slide rail mechanism 3, so that the roller structure 13 stably drives the movable platform 7 to move in the later period;
the first hinge support 14, the second hinge support 15, the third hinge support 16 and the fourth hinge support 17 are the same in structural size, and the number of the second hinge support 15 and the third hinge support 16 is 2: the movable ladder is arranged in a mode of 1, the movable ladder 8 is convenient to rotatably install through a first hinged support 14, the pitching oil cylinder 10 is convenient to rotatably install through a second hinged support 15, and the telescopic oil cylinder 9 is convenient to rotatably install through a third hinged support 16.
The working principle of the embodiment is as follows: when the novel boarding ladder is used, firstly, as shown in attached figure 1-2, the whole device is started, the whole boarding ladder is driven to run by the commercial chassis 2 of the automobile, the running power is provided for the whole boarding ladder, the whole boarding ladder is convenient to move well, the use and the operation are simple, when the boarding ladder is moved to the side of a ship body, the work of the commercial chassis 2 is stopped, then the leg supporting structure 11 is driven to descend by the control mechanism, the bottom of the leg supporting structure 11 is contacted with a working area, the whole underframe structure 1 is conveniently and stably contacted with the working area by the leg supporting structure 11, the placement stability of the whole device is improved, then, the telescopic oil cylinder 9 is started, one end of the telescopic oil cylinder 9 is connected with the third hinged support 16 on the movable platform 7, and one end of the telescopic oil cylinder 9 drives the boarding ladder body mechanism and the movable platform 7 to move left and right, as shown in fig. 1-6, at this time, the roller structure 13 below the movable platform 7 slides stably in the slide rail mechanism 3, thereby ensuring that the movable platform 7 drives the fixed large platform 6 and the movable ladder 8 to move;
then after the large fixed platform 6 and the movable ladder 8 move to proper positions, the pitching oil cylinder 10 is started, one end of the pitching oil cylinder 10 drives the boarding ladder movable ladder 8 to perform pitching motion, so that the movable ladder 8 rotates around the first hinged support 14 through the pitching oil cylinder 10, the inclination angle of the movable ladder 8 is convenient to adjust, as shown in the attached drawings 8-9, when an access board 805 at the top end of the movable ladder 8 is placed on a ship body, the side edge of the ship body is hooked through the abutting block 804, and the work of the pitching oil cylinder 10 is stopped, at this time, the movable ladder 8 is well placed on the ship body, then, as shown in the attached drawings 1, a user enters the small fixed ladder 5 through the small fixed platform 4, enters the large fixed platform 6 through the fixed ladder 5, and as shown in the attached drawings 3 and 6, and enters the movable ladder 8 through the large fixed platform 6;
then, as shown in fig. 8-9, the opening and closing door 803 at the top end of the movable ladder 8 is opened through the hinge in a rotating way, so that the opening and closing door 803 is conveniently opened, and then a user walks through the step plate 801 on the movable ladder 8 and gets on the ship through the movable ladder 8, so that the action of overlapping the loose pulley of the boarding ladder is realized, and passengers can go on and off the loose pulley, thereby completing a series of work.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a novel boarding ladder, includes chassis structure (1), commercial chassis (2), fixed little platform (4) and flange board (12), its characterized in that: the chassis structure (1) is provided with 3 supporting leg structures (11), the upper part of the rear end of the chassis structure (1) is connected with a sliding rail mechanism (3) through bolts, the side edge of the front end of the chassis structure (1) is connected with a commercial chassis (2) through bolts, the bottom of the chassis structure (1) is fixed with the commercial chassis (2), the right side of the small fixed platform (4) is connected with a fixed ladder (5), the right side of the fixed ladder (5) is connected with a large fixed platform (6), the lower part of the large fixed platform (6) is provided with a movable platform (7), the upper part of the large fixed platform (6) is provided with a movable ladder (8), the lower end of the large fixed platform (6) is fixed on the chassis structure (1) through a flange plate (12), the movable platform (7) is provided with a roller structure (13), and the roller structure (13) is clamped and slidably connected with the sliding rail mechanism (3), and a first hinged support (14) is fixed at the top of the left end of the movable platform (7), a second hinged support (15) and a third hinged support (16) are fixed below the left end of the movable platform (7), a third hinged support (16) is arranged in front of the second hinged support (15), the first hinged support (14) is connected with the movable ladder (8) through a pin shaft, the second hinged support (15) is connected with one end of the pitching oil cylinder (10), the other end of the pitching oil cylinder (10) is connected with a fourth hinged support (17) on the movable ladder (8), a fourth hinged support (17) is fixed at the bottom of the right end of the movable ladder (8), the third hinged support (16) is connected with one end of the telescopic oil cylinder (9), and the other end of the telescopic oil cylinder (9) is connected with the slide rail mechanism (3).
2. The novel boarding ladder of claim 1, characterized in that: the sliding rail mechanism (3) is fixed on a girder of the underframe structure (1) through bolts, and the length of the sliding rail mechanism (3) is smaller than that of the underframe structure (1).
3. The novel boarding ladder of claim 1, characterized in that: the small fixed platform (4) is fixed on a side cross beam of the underframe structure (1) through bolts, and the lowest point of the small fixed platform (4) is lower than the lowest point of the fixed ladder (5).
4. The novel boarding ladder of claim 1, characterized in that: the movable platform (7) and the sliding rail mechanism (3) form a sliding structure through the telescopic oil cylinder (9), and the upper surface of the movable platform (7) is arranged in a horizontal structure.
5. The novel boarding ladder of claim 1, characterized in that: ladder board (801) have been laid to the upper surface of activity ladder (8), and baffle frame (802) are all installed to both sides around activity ladder (8) to the left end hinge of activity ladder (8) is installed and is opened and shut door (803), and the bottom of activity ladder (8) is fixed with and supports piece (804), and access board (805) are installed to the left end of activity ladder (8) simultaneously, and activity ladder (8) constitute revolution mechanic through every single move hydro-cylinder (10) and fixed big platform (6).
6. The novel boarding ladder of claim 5, characterized in that: the abutting blocks (804) are arranged in a right-angle ladder-shaped structure, and the length of the abutting blocks (804) is smaller than that of the butt plate (805).
7. The novel boarding ladder of claim 1, characterized in that: the supporting leg structures (11) are symmetrically provided with 3 groups of 2 groups about the transverse central line of the chassis structure (1), and the supporting leg structures (11) and the chassis structure (1) form a lifting structure.
8. The novel boarding ladder of claim 1, characterized in that: the roller structure (13) is connected with the sliding rail mechanism (3) in a clamping and sliding manner, and the roller structure (13) forms a sliding structure with the chassis structure (1) through the sliding rail mechanism (3).
9. The novel boarding ladder of claim 1, characterized in that: the structure size of the first hinged support (14), the second hinged support (15), the third hinged support (16) and the fourth hinged support (17) is the same, and the number of the second hinged support (15) and the third hinged support (16) is 2: 1 set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464006.6A CN112593841A (en) | 2020-12-11 | 2020-12-11 | Novel boarding ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464006.6A CN112593841A (en) | 2020-12-11 | 2020-12-11 | Novel boarding ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112593841A true CN112593841A (en) | 2021-04-02 |
Family
ID=75192690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011464006.6A Pending CN112593841A (en) | 2020-12-11 | 2020-12-11 | Novel boarding ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112593841A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554555A (en) * | 2003-12-29 | 2004-12-15 | 威海广泰空港设备股份有限公司 | Rotary passenger ladder car for passenger ship |
| CN104648622A (en) * | 2015-02-15 | 2015-05-27 | 苏州大方特种车股份有限公司 | Marine passenger ladder car |
| CN105156016A (en) * | 2015-08-27 | 2015-12-16 | 华德宝机械（昆山）有限公司 | Embarkation equipment |
| CN205035046U (en) * | 2015-10-16 | 2016-02-17 | 中国长江电力股份有限公司 | Folded cascade work platform |
| CN106089017A (en) * | 2016-08-09 | 2016-11-09 | 华德宝机械（昆山）有限公司 | One is gone on board equipment |
-
2020
- 2020-12-11 CN CN202011464006.6A patent/CN112593841A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554555A (en) * | 2003-12-29 | 2004-12-15 | 威海广泰空港设备股份有限公司 | Rotary passenger ladder car for passenger ship |
| CN104648622A (en) * | 2015-02-15 | 2015-05-27 | 苏州大方特种车股份有限公司 | Marine passenger ladder car |
| CN105156016A (en) * | 2015-08-27 | 2015-12-16 | 华德宝机械（昆山）有限公司 | Embarkation equipment |
| CN205035046U (en) * | 2015-10-16 | 2016-02-17 | 中国长江电力股份有限公司 | Folded cascade work platform |
| CN106089017A (en) * | 2016-08-09 | 2016-11-09 | 华德宝机械（昆山）有限公司 | One is gone on board equipment |
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Application publication date: 20210402 |
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| RJ01 | Rejection of invention patent application after publication |