CN108194019B - A kind of Construction Safety folding ladder - Google Patents
A kind of Construction Safety folding ladder Download PDFInfo
- Publication number
- CN108194019B CN108194019B CN201711459167.4A CN201711459167A CN108194019B CN 108194019 B CN108194019 B CN 108194019B CN 201711459167 A CN201711459167 A CN 201711459167A CN 108194019 B CN108194019 B CN 108194019B
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- CN
- China
- Prior art keywords
- fixedly connected
- bar shaped
- round
- bar
- rotation
- 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.)
- Expired - Fee Related
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- 238000010276 construction Methods 0.000 title claims abstract description 19
- 239000003381 stabilizer Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 7
- 230000005611 electricity Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
-
- 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
- E06C7/00—Component parts, supporting parts, or accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses a kind of Construction Safety folding ladders, including firm banking, the firm banking upper surface is machined with bar shaped groove at center, left-hand face is machined with round bearing groove in the bar shaped groove, right lateral surface is fixedly connected with positioning annulus corresponding with round bearing groove in the bar shaped groove, the circle bearing groove inner surface is fixedly connected with the miniature rotating electric machine that round end is horizontal direction, the round end of the miniature rotating electric machine is fixedly connected with the rotation round bar to match with positioning annulus, the rotation round bar side surface is set with a pair of of rectangular connecting block, each rectangular connecting block upper surface is fixedly connected to bar shaped handrail, a pair of bar shaped handrail side surface is fixedly connected with multiple foot-driven levers, each bar shaped handrail side surface upper end is machined with round connecting hole, a pair of round connecting hole It is interior to be embedded with rotary shaft.The invention has the advantages that of simple structure and strong practicability.
Description
Technical field
The present invention relates to terraced field for building, especially a kind of Construction Safety folding ladders.
Background technique
In the work progress of construction site, operator's truck work is in most cases needed, it is therefore desirable to using to stepping on
High auxiliary tool.
Common buildings worker ascends a height auxiliary tool using tripod, and common tripod structure is fairly simple, occupied area
It is larger, it has not been convenient to carry, it is therefore desirable to a kind of lift convenient for folding guarantees the stabilization safe effect of device, furthermore such that
Device has power saving function, is offering convenience property of constructing operation convenient for fixing, therefore it is necessary that the present apparatus, which is arranged,.
Summary of the invention
The purpose of the present invention is to solve the above problems, devise a kind of Construction Safety folding ladder.
Realize above-mentioned purpose the technical scheme is that, a kind of Construction Safety folding ladder, including firm banking,
Firm banking lower surface four corners are fixedly connected with the support stabilizer blade of two pairs of telescopic hydraulic-pressure sleeve structures, the fixation
Bar shaped groove is machined at base upper surface center, left-hand face is machined with round bearing groove, the item in the bar shaped groove
Right lateral surface is fixedly connected with positioning annulus corresponding with round bearing groove in shape through slot, is respectively provided in the two sides of bar shaped groove
There is an auxiliary to rise support protrusion, the circle bearing groove inner surface is fixedly connected with the Miniature that round end is horizontal direction
Rotating motor, the round end of the miniature rotating electric machine are fixedly connected with the rotation round bar to match with positioning annulus, the rotation
Round bar side surface is set with a pair of of rectangular connecting block, and each rectangular connecting block upper surface is fixedly connected to bar shaped handrail,
A pair of bar shaped handrail side surface is fixedly connected with multiple foot-driven levers, and each foot-driven lever is telescopic hydraulic-pressure sleeve structure,
Each bar shaped handrail side surface upper end is machined with round connecting hole, is embedded with rotation in a pair of round connecting hole
Axis, for rotation shaft side surface fixing sleeve equipped with a pair of U-shaped connection sheet, rotary shaft is also connected with electric motor, each described U-shaped
Connection sheet side surface is fixedly connected to automatically controlled telescopic strut, and each described automatically controlled telescopic strut one end, which is fixedly connected to, to be vertically arranged
Strut, each described to be vertically arranged strut one end and be fixedly connected to No.1 electromagnet, the bar shaped groove following table surface rear end is machined with
A pair of of circular groove, lower surface is fixedly connected to No. two electromagnetism to match with No.1 electromagnet in each circular groove
Iron, bar shaped groove lower surface front end are machined with rectangular channel, and lower surface is equipped with solar panels, the fixation in the rectangular channel
Bar shaped bearing groove is machined at base lower surface center, upper surface is equipped with energy converter and electric power storage in the bar shaped bearing groove
Pond, the firm banking lower surface are connected with the active catch door to match with bar shaped bearing groove, described firm banking or so
Both side surface is fixedly connected to fixed bandage, one of them described fixed bandage side surface is fixedly connected with sub- velcro,
In another described fixed bandage side surface be fixedly connected with the female velcro to match with sub- velcro；
When operation completion carries out receiving ladder, telescopic strut automatically controlled first is shunk, and then rotary shaft drives two U-shaped companies
Contact pin is rotated to the plane formed with two bar shaped handrails in locking action is carried out behind 15 ° of position, and then each foot-driven lever is shunk
To vertical same position, then miniature rotating electric machine drives rotation round bar rotation, until two are vertically arranged strut and bear against two
A auxiliary rises nearest in support protrusion one, when carrying out ladder operation, is first released from the locking action of rotary shaft, electronic horse
It is rotated counterclockwise simultaneously under the drive of electric motor and miniature rotating electric machine respectively up to drive rotary shaft and rotation round bar, wherein
The angular velocity of rotation of miniature rotating electric machine is slightly less than electric motor, and automatically controlled telescopic strut persistently extends during this period, until automatically controlled
The vertical pole of telescopic strut front end be detached from auxiliary rise support protrusion against to complete during ladder bar shaped handrail and perpendicular
The initial rise starting operation of allotment bar.
Firm banking lower surface four corners are fixedly connected with two pairs of support stabilizer blades, each support stabilizer blade lower surface
It is fixedly connected to improved mat.
Rotation shaft side surface both ends are set with a pair of of rounded tabs.
Each foot-driven lever upper surface is fixedly connected to rubber antiskid pad.
Rectangular channel inner surface upper end is fixedly connected with light transmission protection board.
A kind of Construction Safety folding ladder made using technical solution of the present invention improves construction worker construction behaviour
The convenience of work is conducive to carry, convenient for folding, structure novel, and use value is high.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of Construction Safety folding ladder of the present invention；
Fig. 2 is a kind of front sectional view of Construction Safety folding ladder of the present invention；
In figure, 1, firm banking；2, annulus is positioned；3, miniature rotating electric machine；4, round bar is rotated；5, rectangular connecting block；6,
Bar shaped handrail；7, foot-driven lever；8, rotary shaft；9, U-shaped connection sheet；10, automatically controlled telescopic strut；11, it is vertically arranged strut；12, No.1 electricity
Magnet；13, No. two electromagnet；14, solar panels；15, energy converter；16, battery；17, active catch door；18, fixation is tied up
Band；19, sub- velcro；20, female velcro；21, stabilizer blade is supported；22, improved mat；23, rounded tabs；24, rubber antiskid pad；
25, light transmission protection board.
Specific embodiment
The present invention is specifically described with reference to the accompanying drawing, as shown in Figs. 1-2, a kind of Construction Safety folding ladder,
Including firm banking 1, bar shaped groove, left-hand face in the bar shaped groove are machined at the 1 upper surface center of firm banking
It is machined with round bearing groove, right lateral surface is fixedly connected with positioning annulus corresponding with round bearing groove in the bar shaped groove
2, the circle bearing groove inner surface is fixedly connected with the miniature rotating electric machine 3 that round end is horizontal direction, the Miniature
The round end of rotating motor 3 is fixedly connected with the rotation round bar 4 to match with positioning annulus 2,4 side surface of the rotation round bar suit
There is a pair of of rectangular connecting block 5, each 5 upper surface of rectangular connecting block is fixedly connected to bar shaped handrail 6, a pair of bar shaped
6 side surface of handrail is fixedly connected with multiple foot-driven levers 7, and each 6 side surface upper end of bar shaped handrail is machined with round connection
Hole, a pair of round connecting hole is interior to be embedded with rotary shaft 8, and the 8 side surface fixing sleeve of rotary shaft is equipped with a pair of U-shaped connection sheet
9, each U-shaped 9 side surface of connection sheet is fixedly connected to automatically controlled telescopic strut 10, each automatically controlled telescopic strut 10 1
End is fixedly connected to and is vertically arranged strut 11, it is each it is described be vertically arranged 11 one end of strut and be fixedly connected to No.1 electromagnet 12, it is described
Bar shaped groove following table surface rear end is machined with a pair of of circular groove, and lower surface is fixedly connected to and one in each circular groove
No. two electromagnet 13 that number electromagnet 12 matches, bar shaped groove lower surface front end is machined with rectangular channel, the rectangular channel
Interior lower surface is equipped with solar panels 14, and bar shaped bearing groove, the bar shaped carrying are machined at the 1 lower surface center of firm banking
Upper surface is equipped with energy converter 15 and battery 16 in slot, and 1 lower surface of firm banking is connected with to be carried with bar shaped
The active catch door 17 that slot matches, 1 left and right sides surface of firm banking are fixedly connected to fixed bandage 18, one of them
18 side surface of fixed bandage is fixedly connected with sub- velcro 19, and the fixed company in 18 side surface of bandage is fixed described in another one
It is connected to the female velcro 20 to match with sub- velcro 19；The 1 lower surface four corners of firm banking are fixedly connected with two pairs of branch
Stabilizer blade 21 is supportted, each 21 lower surface of support stabilizer blade is fixedly connected to improved mat 22；The 8 side surface both ends of rotary shaft
It is set with a pair of of rounded tabs 23；Each 7 upper surface of the foot-driven lever is fixedly connected to rubber antiskid pad 24；The rectangular channel
Inner surface upper end is fixedly connected with light transmission protection board 25.
The characteristics of the present embodiment is that firm banking 1 guarantees the stability of device, item for fixed carrying whole device
Shape through slot facilitates ladder collapses storage transport, and positioning annulus 2 and rotation round bar 4, which match, guarantees fixed effect, miniature electric rotating
Machine 3 rotates, and is conducive to rotate the rotation of round bar 4, therefore the bar shaped handrail 6 being fixedly connected in a pair of of rectangular connecting block 5 is driven to adjust
Gradient is conducive to control ladder height, and for multiple foot-driven levers 7 convenient for scaling a ladder, a pair of of circle connecting hole facilitates rotary shaft 8 to revolve
Turn, thus high according to 10 extension and contraction control of automatically controlled telescopic strut that the U-shaped connection sheet 9 of control of gradient of bar shaped handrail 6 is fixedly connected
Degree, automatically controlled telescopic strut 10 control ladder height by telescopic action, guarantee that ladder flexible modulation tilts fixed effect, are vertically arranged branch
Bar 11 supports ladder convenient for being vertically arranged on direction, and No.1 electromagnet 12 matches with No. two electromagnet 13, is conducive to fixation and is vertically arranged branch
Bar 11 increases fastness convenient for ladder, and solar panels 14 absorb solar energy, convert solar energy into electricity by energy converter 15
It can be stored in battery 16 and be used for device, reach energy-saving effect, improve the convenience of construction worker's constructing operation, favorably
It is convenient for folding in carrying, structure novel, use value height.
In the present embodiment, programmable Series Controller and a motor driven are installed first at the present apparatus free time
Device, by taking the controller of MAM-200 model as an example, by seven output terminals of the model controller by conducting wire respectively with an electricity
Machine driver, miniature rotating electric machine 3, automatically controlled telescopic strut 10,12, No. two electromagnet 13 of No.1 electromagnet, 14 and of solar panels
The input terminal of energy converter 15 connects, and those skilled in the art pass through conducting wire and miniature rotating electric machine 3 in Jiang Yitai motor driver
Terminals connection.After those skilled in the art pass through controller programming, the job order of the fully controllable each electrical part of system, specific work
It is as follows to make principle: for firm banking 1 for fixed carrying whole device, bar shaped groove facilitates ladder collapses storage transport, and circle is held
It carries slot and is used for bearing micro rotating electric machine 3, positioning annulus 2 and rotation round bar 4, which match, guarantees fixed effect, miniature rotating electric machine
3 rotations are conducive to rotate the rotation of round bar 4, therefore the adjustment of bar shaped handrail 6 being fixedly connected in a pair of of rectangular connecting block 5 is driven to incline
Gradient, convenient for scaling a ladder, a pair of of circle connecting hole is used to be embedded in rotary shaft 8 multiple foot-driven levers 7, and rotary shaft 8 is facilitated to rotate, from
And the 10 extension and contraction control height of automatically controlled telescopic strut being fixedly connected according to the U-shaped connection sheet 9 of the control of gradient of bar shaped handrail 6, it erects
Strut 11 is set convenient for being vertically arranged on direction and supporting ladder, No.1 electromagnet 12 matches with No. two electromagnet 13 in circular groove,
Be conducive to fix and be vertically arranged strut 11, rectangular channel carries energy converter 15 and store for carrying solar panels 14, bar shaped bearing groove
Battery 16, solar panels 14 absorb solar energy, convert solar energy into electric energy by energy converter 15 and be stored in battery 16
Interior to use for device, active catch door 17 plays the role of seal protection, sub- velcro 19 and female velcro 20 on fixed bandage 18
The ladder that fixed binding is shunk, carrying easy to carry are matched, two pairs of support stabilizer blades 21, which increase balance when ladder uses, to be fixed
Effect, 22 increasing friction force of improved mat improve stability, and a pair of of rounded tabs 23 protect rotary shaft 8 to prevent from taking off in rotation
It falls, the rubber antiskid pad 24 on foot-driven lever 7 plays fixed antiskid effect, and light transmission protection board 25 plays light transmission protective effect.
Further in order to realize that ladder has smaller folding volume, the width dimensions and bar shaped for reducing firm banking are helped
The length of bar 6, two pairs of support stabilizer blades 21 that 1 lower surface four corners of firm banking are fixedly connected are set as telescopic hydraulic sleeve
Barrel structure, to realize that the bar shaped handrail 6 of same size is able to carry out the adjusting of more height dimensions, furthermore each foot-driven lever is improved
For can multi-expansion hydraulic-pressure sleeve structure, realize fold when have smaller width dimensions.
Furthermore the initial liter of the rise of the ladder in above-described embodiment and the vertical pole being connected in U-shaped connection sheet 9
Playing starting is the single rotation completion that rotation strut 4 is driven by miniature rotating electric machine, but rotates strut and be located at ladder
One end of length direction, the torque that rotation applies needs greatly to rise ladder and U-shaped connection sheet very much, therefore designs one
Kind can generate simultaneously from the both ends of ladder and rise the structure for holding up torque, and the present invention cleverly borrows perpendicular in above-described embodiment
Allotment bar is realized, structure is specifically improved are as follows: is respectively arranged with auxiliary in the two sides of bar shaped groove and is risen support protrusion, rotary shaft
8 are also connected with electric motor, and when operation completion carries out receiving ladder, telescopic strut 10 automatically controlled first is shunk, then rotary shaft 8
Locking action is carried out after two U-shaped connection sheets of drive rotate the position to the plane formed with two bar shaped handrails 6 in 15 °, so
Each foot-driven lever 7 is contracted to vertical same position afterwards, and then miniature rotating electric machine 3 drives rotation round bar rotation, until two
It is vertically arranged strut 11 and bears against nearest in two auxiliary rise support protrusions one；
When carrying out ladder operation, it is first released from the locking action of rotary shaft 8, electric motor drives rotary shaft 8 and rotation circle
The bar rotation counterclockwise simultaneously under the drive of electric motor and miniature rotating electric machine respectively, automatically controlled telescopic strut 10 is held during this period
Continuous elongation, until the vertical pole 11 of automatically controlled 10 front end of telescopic strut be detached from auxiliary rise support protrusion against to complete frame
The initial rise starting operation of bar shaped handrail and vertical pole during ladder.
Its working principle is that: before starting rise movement, two U-shaped connection sheets are rotated to forming with two bar shaped handrails 6
Plane is in 15 ° of position, so that the U-shaped connection sheet of ladder projects slightly from the bar shaped groove of firm banking in order to prop up vertically
Bar rises support protrusion against auxiliary, then starts rise movement and starts, electric motor drives rotary shaft 8 to rotate, to drive
U-shaped connection sheet and thereon vertical pole rotation, but vertical pole by auxiliary rise support protrusion against vertical pole can not
Rotation, can generate the reaction force for being applied to rotary shaft, which push away rotary shaft 8 by whole reverse rotation
It is dynamic, in this process, drive the rotation of bar shaped handrail 6 to rise under the drive of micromotor positioned at the rotation strut of the ladder other end
It rises, therefore the torque that both ends are risen to a direction of rotation simultaneously may be implemented, so that ladder is smoothly risen.
While the design is so that vertical pole is used as auxiliary support structure after normal rise, primary starting rank is being risen
Section can also greatly improve the lift operation efficiency of ladder as auxiliary raising structure while reducing ladder structure complexity
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, those skilled in the art
The principle of the present invention is embodied to some variations that some of them part may be made, belongs to the scope of protection of the present invention it
It is interior.
Claims (5)
1. a kind of Construction Safety folding ladder, including firm banking (1), which is characterized in that firm banking (1) lower surface
Four corners are fixedly connected with the support stabilizer blade (21) of two pairs of telescopic hydraulic-pressure sleeve structures, firm banking (1) upper surface
Bar shaped groove is machined at center, left-hand face is machined with round bearing groove, the right side in the bar shaped groove in the bar shaped groove
Side surface is fixedly connected with positioning annulus (2) corresponding with round bearing groove, and it is auxiliary to be provided with one in the two sides of bar shaped groove
Rise support protrusion is helped, the circle bearing groove inner surface is fixedly connected with the miniature rotating electric machine that round end is horizontal direction
(3), the round end of the miniature rotating electric machine (3) is fixedly connected with the rotation round bar (4) to match with positioning annulus (2), institute
It states rotation round bar (4) side surface to be set with a pair of of rectangular connecting block (5), each rectangular connecting block (5) upper surface is fixed
It is connected with bar shaped handrail (6), a pair of bar shaped handrail (6) side surface is fixedly connected with multiple foot-driven levers (7), each foot-driven lever
It (7) is telescopic hydraulic-pressure sleeve structure, each bar shaped handrail (6) side surface upper end is machined with round connecting hole, and one
To rotary shaft (8) are embedded in the round connecting hole, rotary shaft (8) the side surface fixing sleeve is equipped with a pair of U-shaped connection sheet
(9), rotary shaft (8) is also connected with electric motor, and each U-shaped connection sheet (9) side surface is fixedly connected to automatically controlled flexible
Strut (10), each described automatically controlled telescopic strut (10) one end, which is fixedly connected to, is vertically arranged strut (11), each described to be vertically arranged branch
Bar (11) one end is fixedly connected to No.1 electromagnet (12), and the bar shaped groove following table surface rear end is machined with a pair of round recessed
Slot, lower surface is fixedly connected to No. two electromagnet to match with No.1 electromagnet (12) in each circular groove
(13), bar shaped groove lower surface front end is machined with rectangular channel, and lower surface is equipped with solar panels (14) in the rectangular channel, institute
It states and is machined with bar shaped bearing groove at firm banking (1) lower surface center, upper surface is converted equipped with energy in the bar shaped bearing groove
Device (15) and battery (16), firm banking (1) lower surface are connected with the active catch to match with bar shaped bearing groove
Door (17), firm banking (1) left and right sides surface are fixedly connected to fixed bandage (18), one of them described fixation is tied up
Band (18) side surface is fixedly connected with sub- velcro (19), and bandage (18) side surface is fixed described in another one and is fixedly connected with
The female velcro (20) to match with sub- velcro (19)；
When operation completion carries out receiving ladder, telescopic strut (10) automatically controlled first is shunk, and then rotary shaft (8) drives two U
Type connection sheet is rotated to the plane formed with two bar shaped handrails (6) in locking action is carried out behind 15 ° of position, is then each ridden
Bar (7) is contracted to vertical same position, and then miniature rotating electric machine (3) drives rotation round bar (4) rotation, until two are vertically arranged
Strut (11) bears against two auxiliary and rises nearest in support protrusion one, when carrying out ladder operation, is first released from rotation
The locking action of axis (8), electric motor drive rotary shaft (8) and rotation round bar (4) respectively in electric motor and miniature electric rotating
Under the drive of machine (3) while rotation counterclockwise, wherein the angular velocity of rotation of miniature rotating electric machine (3) is slightly less than electric motor,
Automatically controlled telescopic strut (10) persistently extends during this, until the vertical pole (11) of automatically controlled telescopic strut (10) front end is detached from auxiliary
Rise support protrusion against being started with to complete the initial rise of bar shaped handrail (6) and vertical pole (11) during ladder and moved
Make.
2. a kind of Construction Safety folding ladder according to claim 1, which is characterized in that each support stabilizer blade
(21) lower surface is fixedly connected to improved mat (22).
3. a kind of Construction Safety folding ladder according to claim 1, which is characterized in that rotary shaft (8) side table
Face both ends are set with a pair of of rounded tabs (23).
4. a kind of Construction Safety folding ladder according to claim 1, which is characterized in that each foot-driven lever (7)
Upper surface is fixedly connected to rubber antiskid pad (24).
5. a kind of Construction Safety folding ladder according to claim 1, which is characterized in that the rectangular channel inner surface
Upper end is fixedly connected with light transmission protection board (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711459167.4A CN108194019B (en) | 2017-12-28 | 2017-12-28 | A kind of Construction Safety folding ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711459167.4A CN108194019B (en) | 2017-12-28 | 2017-12-28 | A kind of Construction Safety folding ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108194019A CN108194019A (en) | 2018-06-22 |
| CN108194019B true CN108194019B (en) | 2019-03-15 |
Family
ID=62584945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711459167.4A Expired - Fee Related CN108194019B (en) | 2017-12-28 | 2017-12-28 | A kind of Construction Safety folding ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108194019B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3625298A1 (en) * | 1986-04-26 | 1987-10-29 | Iveco Magirus | LADDER ARRANGEMENT WITH EXTENDABLE LADDER PARTS, ESPECIALLY FIREFIGHTER LADDERS |
| GB9325224D0 (en) * | 1993-12-09 | 1994-02-09 | Wong Raymond | Convertible ladder assembly |
| AU2003290755B2 (en) * | 2002-11-11 | 2009-10-29 | Wing Enterprises | Combination ladders, ladder components and methods of manufacturing same |
| CN201363084Y (en) * | 2009-02-12 | 2009-12-16 | 阮小华 | Folding ladder |
| CN203066846U (en) * | 2013-01-04 | 2013-07-17 | 魏华昌 | Multifunctional portable folding ladder |
| CN106629528B (en) * | 2017-01-06 | 2023-01-31 | 国家电网公司 | Remove folding ladder companion ladder device convenient to public transformer area operation |
-
2017
- 2017-12-28 CN CN201711459167.4A patent/CN108194019B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN108194019A (en) | 2018-06-22 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190213 Address after: 443000 No. 26-2-205 Jusong Road, Maoping Town, Zigui County, Yichang City, Hubei Province Applicant after: Hubei Rui building engineering Co., Ltd. Address before: 450000 Hongtu Street, South Yellow River Road, Jinshui District, Zhengzhou City, Henan Province, 29 Applicant before: Wei Minsheng |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190315 Termination date: 20191228 |