CN114150997A - Folding mechanical work ladder for ships - Google Patents
Folding mechanical work ladder for ships Download PDFInfo
- Publication number
- CN114150997A CN114150997A CN202111459391.XA CN202111459391A CN114150997A CN 114150997 A CN114150997 A CN 114150997A CN 202111459391 A CN202111459391 A CN 202111459391A CN 114150997 A CN114150997 A CN 114150997A
- Authority
- CN
- China
- Prior art keywords
- ladder
- assembly
- working platform
- ladder beam
- supporting
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/383—Foldable ladders in which the longitudinal members are brought together on folding
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/39—Ladders having platforms; Ladders changeable into platforms
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/397—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders characterised by having wheels, rollers, or runners
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/02—Extending means
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
- E06C7/46—Non-skid equipment
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/50—Joints or other connecting parts
Abstract
The invention provides a mechanical work ladder used on a ship, which adopts a folding structure and comprises: the device comprises a working platform, a supporting assembly, an outer stretching assembly, a balance rod assembly, a spring pin, a movable anchor, a limiting assembly, an anti-skid anchor, a caster, a ladder beam and a pedal; the two sides of the working platform are connected with the top end of the ladder beam and one end of the supporting component through hinges; the ladder beam and the supporting component are splayed outwards to form a herringbone ladder, the upper part is a working platform keeping a horizontal state, and the lower ladder beam and the supporting component are arranged; the working platform, the ladder beam and the pedals are connected through hinges to form a parallelogram structure; the working platform is of a rectangular structure, the supporting assembly, the outer stretching assembly and the ladder beam all comprise two tubular side frames, and the two side frames are connected and fixed through a plurality of cross beams; the outer stretching assembly and the supporting assembly are nested to form a linear drawing structure, and the outer stretching assembly and the supporting assembly are limited through a spring pin.
Description
Technical Field
The invention belongs to the technical field of ship auxiliary tool equipment, and particularly relates to a folding aircraft work ladder for ships.
Background
The flight work ladder is a guarantee device used for approaching the airplane part and used for flight personnel to finish flight maintenance work at a high place. In order to meet the maintenance requirements of the aircraft at different maintenance heights, the aircraft working ladder is required to have the functions of height adjustment and folding storage, and has good stability in the ship swinging environment.
Disclosure of Invention
In order to solve the technical problem, the invention provides a mechanical work ladder used on a ship, which adopts a folding structure and at least comprises: the device comprises a working platform, a supporting assembly, an outer stretching assembly, a spring pin, a limiting assembly, a ladder beam and pedals;
the working platform is of a rectangular structure, and two sides of the working platform are connected with one end of the ladder beam through hinges and connected with one end of the supporting component through hinges;
the ladder beam and the supporting component form a working platform with the upper part always kept in a horizontal state after being opened, and the ladder beam and the supporting component below form a herringbone ladder structure which is splayed outwards respectively;
the supporting assembly, the outer stretching assembly and the ladder beam all comprise two tubular frames, and the two frames are connected and fixed through a plurality of cross beams.
Further, outer stretching assembly and supporting component are the cast structure, and outer stretching assembly suit is in the supporting component outside, and outer stretching assembly and supporting component constitute sharp pull structure.
Furthermore, the upper end of the outer stretching assembly is provided with a spring pin, and the outer stretching assembly and the supporting assembly are locked and positioned by the spring pin after the outer stretching assembly and the supporting assembly are pulled to form the required length.
Further, two cast limit frame lower extremes of outer tensile assembly set up 2 truckles, the engineering work ladder is transporting through this truckle in expansion state and fold condition homoenergetic.
Furthermore, 2 movable ground feet are arranged at the lower end of the outer stretching assembly.
Furthermore, the mechanical work ladder also comprises two balance rod assemblies; each balancing rod assembly is connected with one tubular frame of the outer stretching assembly through a folding hinge structure; the lower end of the balance rod assembly is provided with 2 movable anchor feet, the lower end of each movable anchor foot is provided with an anti-skidding rubber mat and is in contact with the ground, and the balance rod assembly can provide auxiliary balance support for the folding working ladder after being unfolded.
Further, the ladder roof beam contains first ladder roof beam and second ladder roof beam, and every ladder roof beam contains two limit frames and connects a plurality of footboards of limit frame and constitutes, and first ladder roof beam and second ladder roof beam lower extreme ann all are equipped with anti-skidding lower margin.
Furthermore, each footboard of work platform, a plurality of footboards all is connected with first ladder roof beam and second ladder roof beam through the hinge, constitutes the parallelogram structure that can parallel offset, guarantees work platform, footboard and ground and keeps the horizontality through the hinge when the engineering work ladder carries out altitude mixture control.
Furthermore, the engineering work ladder also comprises 2 limiting assemblies, wherein the two ends of each limiting assembly are respectively fixedly connected with the ladder beam and the outer stretching assembly through hinges, the limiting position of the work ladder is realized when the work ladder is set to be different heights, and the unfolding angle of the ladder beam and the supporting assembly is maintained.
Furthermore, the engineering work ladder can be folded and stored, after the balance rod assembly is folded, the supporting assembly is folded onto the ladder beam, and the spring pin is used for locking the folded engineering work ladder.
The engineering work ladder can be used for completing height adjustment of the work ladder by 1 person, and is simple and quick to operate; the working platform, the pedals and the ladder beam adopt a parallelogram mechanism, so that the working platform, the pedals and the ground are kept in a parallel state while the height is adjusted, and the use is convenient. The auxiliary stress supporting points are arranged, and the stability of the mechanical work ladder is kept in the ship swinging environment.
Drawings
FIG. 1 is a perspective view of a machineshop ladder according to the present invention;
FIG. 2 is a low-height fixing diagram of the engineering work ladder provided by the invention
Fig. 3 is a fixed view of the medium height of the engineering work ladder proposed by the present invention;
FIG. 4 is a fixed view of the maximum height of the present invention;
fig. 5 is a side view of the folded crew ladder of the present invention.
Detailed Description
The invention provides a mechanical work ladder used on a ship, which uses a folding structure and comprises: the device comprises a working platform 1, a supporting component 2, an external stretching component 2-1, a balancing rod component 2-2, a spring pin 3, a movable anchor 4, a limiting component 5, an anti-skid anchor 7, a caster 6, a ladder beam 8 and a pedal 9;
two sides of the working platform are connected with one end of the ladder beam through a movable hinge and connected with one end of the supporting component through a movable hinge; the ladder beam and the supporting component form a working platform with the upper part kept in a horizontal state after being opened, and the ladder beam and the supporting component below are respectively in a herringbone-shaped opened herringbone ladder structure;
the working platform is of a rectangular structure, the supporting assembly, the outer stretching assembly and the ladder beam all comprise two tubular side frames, and the outer stretching assembly is connected and fixed through a plurality of cross beams.
The outer stretching assembly is in a tubular configuration, the outer stretching assembly is sleeved outside the tubular supporting assembly, and the outer stretching assembly and the supporting assembly form a linear drawing structure.
The upper end of the outer stretching assembly is provided with a spring pin, and the outer stretching assembly and the supporting assembly are locked with each other when forming different lengths through drawing.
Two cast limit frame lower extremes of outer tensile subassembly set up 2 truckles, the engineering work ladder is transporting through the truckle in expansion state and fold condition homoenergetic.
The lower end of the outer stretching component is provided with 2 anti-slip rubber pads.
The balance bar subassembly passes through foldable hinge structure with outer tensile subassembly and links, and balance bar subassembly lower extreme sets up 2 movable lower margins, and this movable lower margin lower extreme sets up anti-skidding cushion and ground contact, and the balance bar subassembly can be for providing supplementary balanced support of folding work ladder after expanding.
The ladder beam is by two sets of limit frame construction, and every group includes two limit frames and connects a plurality of footboards of limit frame and constitutes, and antiskid lower margin is installed to ladder beam lower extreme.
The working platform, the pedals and the ladder beam are connected through hinges to form a parallelogram structure capable of shifting in parallel, and the working platform, the pedals and the ground are kept in a horizontal state in height adjustment through the hinges.
The limiting assembly is connected with the ladder beam and the outer stretching assembly, the limiting effect is achieved when the working ladder is set to be different in height, and the unfolding angle of the ladder beam and the outer stretching assembly is kept.
This mechanical work ladder can be folded and deposit, with the folding back of balancing pole subassembly, the supporting component is folded to the ladder roof beam subassembly on, uses the locking of the mechanical work ladder after the spring catch accomplishes folding.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
1) Principle of operation
When the crew work ladder works, the ladder is unfolded to be in a herringbone state, and the height adjusting and locking functions of 3 gears of 1 meter, 1.2 meters and 1.5 meters are achieved. When the wall-mounted working ladder is stored, the machine-mounted working ladder can be folded into a straight-line state, and wall-mounted storage is achieved. During the transport, realize the artifical transport of expansion state and fold condition through the walking wheel that sets up.
1. The working platform, the pedals and the ladder beam of the engineering work ladder form a parallelogram mechanism.
2. The height of the working platform and the pedal is adjusted by adjusting the relative position of the external stretching component and the supporting component;
3. the balance rod assembly is used as an auxiliary stress supporting point, and the stability of the mechanical work ladder is improved.
3) Mainly comprising
The engineering work ladder adopts a structure form of a herringbone ladder and mainly comprises a work platform, a supporting component, an outer stretching component, a balance rod component, a spring pin, a movable ground foot, a limiting component, an anti-skidding ground foot, a trundle, a ladder beam, a pedal and the like.
Work platform, footboard and antiskid lower margin pass through hinged joint with the ladder roof beam and form parallelogram structure, carry out the altitude mixture control in-process, ensure that work platform, footboard and ground keep the horizontality.
Outer tension assembly and supporting component form sharp pull structure, and outer tension assembly sets up the spring catch for realize the locking of outer tension assembly and supporting component different positions.
The limiting assembly is connected with the ladder beam and the outer stretching assembly, so that the limiting effect of the working ladder at different heights is achieved, the unfolding angle of the working ladder is kept, and the stability of the working ladder is improved.
The balance rod assembly and the outer stretching assembly are of a folding hinge structure, and the foldable working ladder can be used after being unfolded, so that the balance performance of the foldable working ladder is improved.
Set up 2 truckles on the external stretching subassembly, the expansion state can carry through the truckle with fold condition homoenergetic.
The equipment sets up 4 movable lower margins and 2 anti-skidding ground angles and ground contact, wherein 4 on ladder roof beam and the outer tensile subassembly are main atress support piece, and 2 on the balancing pole subassembly are as supplementary atress strong point, when improving its antiskid performance, can improve the stability of product.
4) Working process
1. Height adjustment process
Because footboard, work platform, antiskid lower margin and ladder roof beam constitute parallelogram structure, the sharp pull structure of supporting component and outer tensile subassembly constitution, supporting component and work platform pass through hinged joint.
When the supporting component is pulled out along the outer stretching component, the distance between the working platform and the ground is increased, the antiskid ground feet are always kept in contact with the ground, and the pedal and the working platform are always kept in balance with the ground.
2. Folding storage process
When the folding working ladder is stored, the balance rod assembly is folded, the supporting assembly is folded onto the ladder beam assembly, and the spring pin is used for completing locking after folding.
Technical effects
1) The height adjustment of the working ladder is completed by 1 person, and the operation is simple and quick;
2) the working platform, the pedals and the ladder beam adopt a parallelogram mechanism, so that the working platform, the pedals and the ground are kept in a parallel state while the height is adjusted, and the use is convenient.
3) And an auxiliary stress supporting point is arranged, so that the stability of the product is improved in the ship swinging environment.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting, and although the embodiments of the present invention are described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention without departing from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a mechanical work ladder that uses on naval vessel, a serial communication port, mechanical work ladder adopts beta structure, and mechanical work ladder includes at least: the device comprises a working platform, a supporting assembly, an outer stretching assembly, a spring pin, a limiting assembly, a ladder beam and pedals;
the working platform is of a rectangular structure, is connected with one end of the ladder beam through a hinge and is connected with one end of the supporting component through a hinge;
the ladder beam and the supporting component form a working platform with the upper part always kept in a horizontal state after being opened, and the ladder beam and the supporting component below form a herringbone ladder structure which is splayed outwards respectively;
the supporting assembly, the outer stretching assembly and the ladder beam all comprise two tubular frames, and the two frames are connected and fixed through a plurality of cross beams.
2. The crew work ladder of claim 1, wherein the outer tension assembly and the support assembly are both of tubular construction, the outer tension assembly is sleeved outside the support assembly, and the outer tension assembly and the support assembly form a linear pull structure.
3. The ladder of claim 2, wherein the outer tension assembly is provided at an upper end thereof with a spring pin, and the outer tension assembly and the support assembly are locked in position using the spring pin after being drawn to a desired length between the outer tension assembly and the support assembly.
4. The ladder of claim 3, wherein 2 casters are provided at lower ends of the two tubular side frames of the outer tension assembly, and the ladder is capable of being transported by the casters in both the unfolded state and the folded state.
5. The crew ladder of claim 4, wherein the lower end of the outer tension assembly is provided with 2 movable ground feet.
6. The crew ladder of claim 5, further comprising two balancing bar assemblies; each balancing rod assembly is connected with one tubular frame of the outer stretching assembly through a folding hinge structure; the lower end of the balance rod assembly is provided with 2 movable anchor feet, the lower end of each movable anchor foot is provided with an anti-skidding rubber mat and is in contact with the ground, and the balance rod assembly can provide auxiliary balance support for the folding working ladder after being unfolded.
7. The ladder of claim 1, wherein the ladder beams comprise a first ladder beam and a second ladder beam, each of the ladder beams comprises two side frames and a plurality of steps connected to the side frames, and the first ladder beam and the second ladder beam are provided at lower ends thereof with anti-slip legs.
8. The aircraft working ladder of claim 7, wherein the working platform and each of the plurality of steps are connected to the first ladder beam and the second ladder beam by a hinge to form a parallelogram structure capable of parallel offset, and the working platform and the steps are kept horizontal to the ground by the hinge when the aircraft working ladder performs height adjustment.
9. The aircraft work ladder of claim 7, further comprising 2 limiting assemblies, wherein two ends of each limiting assembly are fixedly connected with the ladder beam and the outer stretching assembly through hinges respectively, so that the limiting is provided when the work ladder is set to different heights, and the unfolding angle of the ladder beam and the supporting assembly is maintained.
10. The ladder of claim 1, wherein the ladder is collapsible for storage, the balance bar assembly is collapsed, the support assembly is collapsed onto the ladder beams, and spring pins are used to complete locking of the collapsed ladder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111459391.XA CN114150997A (en) | 2021-12-02 | 2021-12-02 | Folding mechanical work ladder for ships |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111459391.XA CN114150997A (en) | 2021-12-02 | 2021-12-02 | Folding mechanical work ladder for ships |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114150997A true CN114150997A (en) | 2022-03-08 |
Family
ID=80455640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111459391.XA Pending CN114150997A (en) | 2021-12-02 | 2021-12-02 | Folding mechanical work ladder for ships |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114150997A (en) |
Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6189653B1 (en) * | 1997-04-08 | 2001-02-20 | Horst Laug | Multi-purpose scaffold |
| US6206139B1 (en) * | 1996-10-17 | 2001-03-27 | Robert C. Bogart, Jr. | Folding tripod ladder having extendable legs |
| US20050029048A1 (en) * | 2003-08-04 | 2005-02-10 | Frame William F. | Foldable stairway ladder |
| US6997282B1 (en) * | 2004-03-02 | 2006-02-14 | Sharp Robert L | Adjustable ladder |
| CN201526262U (en) * | 2009-10-30 | 2010-07-14 | 北京康得通用设备有限公司 | Movable indoor maintenance ladder frame |
| US20110139544A1 (en) * | 2009-08-21 | 2011-06-16 | Rory Frick | Ladder |
| US20130292205A1 (en) * | 2011-02-21 | 2013-11-07 | Rory Frick | Ladder |
| CN103615188A (en) * | 2013-11-27 | 2014-03-05 | 中国航空工业集团公司西安飞机设计研究所 | Multi-purpose working ladder |
| EP2818625A1 (en) * | 2013-06-25 | 2014-12-31 | CDH Group | Step with retractable wheels with control by railing |
| CN104727730A (en) * | 2015-01-22 | 2015-06-24 | 李海红 | Cable maintenance ladder |
| CN105980652A (en) * | 2013-09-18 | 2016-09-28 | 伟英企业有限公司 | Ladders including rope and pulley system and fall protection device |
| CN205840764U (en) * | 2016-05-27 | 2016-12-28 | 祝青 | A kind of overturning-preventing double ladder |
| CN207583293U (en) * | 2017-11-22 | 2018-07-06 | 杭州职业技术学院 | A kind of Extensible portable supports ladder |
| CN207686601U (en) * | 2017-12-11 | 2018-08-03 | 苏州飞华铝制工业有限公司 | A kind of ladder balancing leg stacked to be received |
| CN108915573A (en) * | 2018-07-14 | 2018-11-30 | 黄崇华 | Mobile domestic folding ladder |
| CN109025779A (en) * | 2018-07-14 | 2018-12-18 | 黄崇华 | Skidding type household does not fall terraced |
| CN110671039A (en) * | 2019-09-20 | 2020-01-10 | 国网通用航空有限公司 | Folding engineering ladder |
| CN210033253U (en) * | 2019-05-17 | 2020-02-07 | 成都航空职业技术学院 | Maintenance work ladder is maintained to machine |
| CN210370452U (en) * | 2019-05-28 | 2020-04-21 | 赖文斌 | Indoor safe cat ladder |
| CN211287472U (en) * | 2019-12-26 | 2020-08-18 | 湖北工业大学工程技术学院 | A supplementary ladder of lamps and lanterns installation for interior decoration |
| CN211974850U (en) * | 2020-03-19 | 2020-11-20 | 创智国际五金集团有限公司 | Mountain-climbing tiger herringbone platform ladder |
| CN111980573A (en) * | 2020-09-14 | 2020-11-24 | 李友平 | Anti-toppling type safe straight ladder |
| CN112160705A (en) * | 2020-09-19 | 2021-01-01 | 芜湖航翼集成设备有限公司 | Six-joint working ladder with pedals |
| CN112160704A (en) * | 2020-10-10 | 2021-01-01 | 浙江奥鹏工贸有限公司 | Novel bamboo joint ladder |
| CN213807504U (en) * | 2020-09-16 | 2021-07-27 | 永康市伟格工贸有限公司 | Stable ladder |
| CN113445896A (en) * | 2021-06-16 | 2021-09-28 | 国网河南省电力公司宝丰县供电公司 | Power grid maintenance device and method |
| CN214659882U (en) * | 2021-01-25 | 2021-11-09 | 佛山市高步铝梯有限公司 | Lifting ladder |
-
2021
- 2021-12-02 CN CN202111459391.XA patent/CN114150997A/en active Pending
Patent Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6206139B1 (en) * | 1996-10-17 | 2001-03-27 | Robert C. Bogart, Jr. | Folding tripod ladder having extendable legs |
| US6189653B1 (en) * | 1997-04-08 | 2001-02-20 | Horst Laug | Multi-purpose scaffold |
| US20050029048A1 (en) * | 2003-08-04 | 2005-02-10 | Frame William F. | Foldable stairway ladder |
| US6997282B1 (en) * | 2004-03-02 | 2006-02-14 | Sharp Robert L | Adjustable ladder |
| US20110139544A1 (en) * | 2009-08-21 | 2011-06-16 | Rory Frick | Ladder |
| CN201526262U (en) * | 2009-10-30 | 2010-07-14 | 北京康得通用设备有限公司 | Movable indoor maintenance ladder frame |
| US20130292205A1 (en) * | 2011-02-21 | 2013-11-07 | Rory Frick | Ladder |
| EP2818625A1 (en) * | 2013-06-25 | 2014-12-31 | CDH Group | Step with retractable wheels with control by railing |
| CN105980652A (en) * | 2013-09-18 | 2016-09-28 | 伟英企业有限公司 | Ladders including rope and pulley system and fall protection device |
| CN103615188A (en) * | 2013-11-27 | 2014-03-05 | 中国航空工业集团公司西安飞机设计研究所 | Multi-purpose working ladder |
| CN104727730A (en) * | 2015-01-22 | 2015-06-24 | 李海红 | Cable maintenance ladder |
| CN205840764U (en) * | 2016-05-27 | 2016-12-28 | 祝青 | A kind of overturning-preventing double ladder |
| CN207583293U (en) * | 2017-11-22 | 2018-07-06 | 杭州职业技术学院 | A kind of Extensible portable supports ladder |
| CN207686601U (en) * | 2017-12-11 | 2018-08-03 | 苏州飞华铝制工业有限公司 | A kind of ladder balancing leg stacked to be received |
| CN108915573A (en) * | 2018-07-14 | 2018-11-30 | 黄崇华 | Mobile domestic folding ladder |
| CN109025779A (en) * | 2018-07-14 | 2018-12-18 | 黄崇华 | Skidding type household does not fall terraced |
| CN210033253U (en) * | 2019-05-17 | 2020-02-07 | 成都航空职业技术学院 | Maintenance work ladder is maintained to machine |
| CN210370452U (en) * | 2019-05-28 | 2020-04-21 | 赖文斌 | Indoor safe cat ladder |
| CN110671039A (en) * | 2019-09-20 | 2020-01-10 | 国网通用航空有限公司 | Folding engineering ladder |
| CN211287472U (en) * | 2019-12-26 | 2020-08-18 | 湖北工业大学工程技术学院 | A supplementary ladder of lamps and lanterns installation for interior decoration |
| CN211974850U (en) * | 2020-03-19 | 2020-11-20 | 创智国际五金集团有限公司 | Mountain-climbing tiger herringbone platform ladder |
| CN111980573A (en) * | 2020-09-14 | 2020-11-24 | 李友平 | Anti-toppling type safe straight ladder |
| CN213807504U (en) * | 2020-09-16 | 2021-07-27 | 永康市伟格工贸有限公司 | Stable ladder |
| CN112160705A (en) * | 2020-09-19 | 2021-01-01 | 芜湖航翼集成设备有限公司 | Six-joint working ladder with pedals |
| CN112160704A (en) * | 2020-10-10 | 2021-01-01 | 浙江奥鹏工贸有限公司 | Novel bamboo joint ladder |
| CN214659882U (en) * | 2021-01-25 | 2021-11-09 | 佛山市高步铝梯有限公司 | Lifting ladder |
| CN113445896A (en) * | 2021-06-16 | 2021-09-28 | 国网河南省电力公司宝丰县供电公司 | Power grid maintenance device and method |
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