CN105715030A - Single-guide-frame multi-stage lifting working platform with adjustable spacing and length and construction method for single-guide-frame multi-stage lifting working platform - Google Patents
Single-guide-frame multi-stage lifting working platform with adjustable spacing and length and construction method for single-guide-frame multi-stage lifting working platform Download PDFInfo
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- CN105715030A CN105715030A CN201610139447.6A CN201610139447A CN105715030A CN 105715030 A CN105715030 A CN 105715030A CN 201610139447 A CN201610139447 A CN 201610139447A CN 105715030 A CN105715030 A CN 105715030A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G2003/286—Mobile scaffolds; Scaffolds with mobile platforms mobile vertically
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Abstract
The invention discloses a single-guide-frame multi-stage lifting working platform with adjustable spacing and length and a construction method for the single-guide-frame multi-stage lifting working platform, and relates to the technical field of building construction equipment. The single-guide-frame multi-stage lifting working platform aims to solve the problem that a current single-guide-frame lifting working platform only has an operating platform with fixed length, is low in working efficiency and cannot adapt to construction needs. The single-guide-frame multi-stage lifting working platform comprises a guide frame which is vertically arranged and fixed to the side surface of a building, and at least two horizontal operating platforms which are arranged on the guide frame, wherein each horizontal operating platform comprises a fixed part connected onto the guide frame, and folding parts which are hinged to the two ends of the guide frame; a drive gear and a power device are arranged on each fixed part; a rack engaged with the guide frame is arranged on the guide frame; and the horizontal operating platforms can vertically ascend and descend relative to the guide frame. The construction method comprises the following steps: fixing the guide frame to the side surface of the building, and mounting the rack on the side surface of the building; assembling the horizontal operating platforms and mounting the drive gears and the power devices; mounting the horizontal operating platforms on the guide frame for enabling the horizontal operating platforms to vertically ascend and descend relative to the guide frame; and stretching out and drawing back the folding parts to adapt to construction needs of buildings with different widths.
Description
Technical field
The present invention relates to construction implement technical field, particularly to a kind of spacing and length-adjustable single saddle multistage lifting work platforms and construction method thereof.
Background technology
Traditional architecture alien invasion is constructed usually by setting up steel pipe scaffold or plug-in driven hanging basket auxiliary construction, sets up steel pipe scaffold and has that material usage is big, the time of setting up is long, is not easy to operation and construction material transport inconvenience, the problems such as potential safety hazard is more；And plug-in driven hanging basket exists that operation support body is unstable, length is shorter, bearing capacity is limited, and external environment (wind etc.) is on problems such as construction quality impact are bigger.
Development along with building industry level, the application of single saddle climbing type lifting working platform is increasingly extensive, which overcoming conventional steel scaffold and the various shortcomings of plug-in driven hanging basket construction, stable working, lifting capacity are big, operation face width, safe and reliable, and improve labor productivity.But, owing to the building structure number of plies is increasing, and working procedure is increasingly sophisticated, and existing single saddle climbing type lifting working platform only has a job platform, work efficiency is low, and, this job platform has regular length, it is impossible to adapt to the construction needs of different scale of construction outside vertical surface of building.
In sum, in current construction implement technical field, speed of application is fast, mechanization degree is high, the wider array of construction lifting platform of the scope of application seems very necessary how to design one.
Summary of the invention
Only there is the job platform of a regular length for existing single saddle climbing type lifting working platform, work efficiency is low, do not adapt to the problem that different scale of construction outside vertical surface of building construction needs, it is an object of the invention to provide a kind of spacing and length-adjustable single saddle multistage lifting work platforms and construction method thereof, by arranging multistage horizontal job platform on single-column saddle, each horizontal job platform includes fixed part and is articulated with the folding part at its two ends, make the multistage horizontal job platform can in different layers synchronous construction operation, thus improving the efficiency of construction of external wall.
The technical solution adopted for the present invention to solve the technical problems is: spacing and length-adjustable single saddle multistage lifting work platforms include: one is vertically arranged and be fixed on the saddle on ground, and described saddle is fixed on the side of building by some wall-attaching equipment；On described saddle, interval arranges the horizontal job platform of at least two, each described horizontal job platform includes the fixed part being connected on described saddle, and it is articulated with the folding part at described fixed part two ends, described fixed part is respectively provided with driving gear and the power set of gear-rack drive system, described saddle arranges the tooth bar being meshed with described driving gear of described gear-rack drive system so that each described horizontal job platform all can do vertical lifting motion relative to described saddle.
Preferably, the described fixed part of described horizontal job platform and described folding part form by some level standards joint is end to end, described fixed part also includes support framework that is affixed with it and that be sheathed on described saddle, described support framework is the frame structure being welded by shaped steel and matching with described saddle, described driving gear is fixed on the inner side of described support framework, and is meshed with described tooth bar fixing on described saddle.
Preferably, described level standard joint includes the supporting frame being made up and be truss structure of shaped steel, it is fixed on the horizontal pedal at support frame as described above body top, and vertically it is fixed on guardrail and the toeguard of support frame as described above body side surface, one end away from described fixed part of described folding part horizontal pedal is provided with hook.
Preferably, described saddle is formed by some vertical standard knots are end to end, and the support body of truss structure is made up and is to described vertical standard knot of shaped steel, and between adjacent two described vertical standard knots, bolt connects.
Preferably, the bottom of described saddle is additionally provided with the base being made up and in frame structure of shaped steel, and described base is connected with described saddle bottom bolt.
Preferably, described wall-attaching equipment is made up of shaped steel, and one end of described wall-attaching equipment is connected with described saddle bolt, and the other end of described wall-attaching equipment is locked with the pre-embedded bolt in described side of buildings xoncrete structure.
Preferably, it also includes click drive system, and the ratchet of described click drive system is fixed on the support framework of described fixed part, and the crosspiece being meshed with described ratchet of described click drive system is fixed on described saddle.
It addition, present invention also offers the construction method of the adjustable single saddle multistage lifting work platforms of a kind of spacing, step is as follows:
One, saddle it is vertically arranged to ground and fixes, making described saddle affixed by some wall-attaching equipment with the side of building, and the tooth bar of gear-rack drive system is installed on described saddle；
Two, the horizontal job platform of at least two is assembled, fixed part at each described horizontal job platform is installed described gear-rack drive system and is driven gear and power set accordingly, and described horizontal job platform is installed on described saddle successively so that each described horizontal job platform all can need to do vertical lifting motion relative to described saddle according to construction；
Three, need to shrink or stretch the folding part being articulated with described fixed part two ends according to construction so that the length of described horizontal job platform can adapt to the construction needs of different in width building.
Preferably, the fixed part of described horizontal job platform and folding part form by some level standards joint is end to end, described fixed part also includes the support framework being sheathed on described saddle, and described support framework is the frame structure being welded by shaped steel and matching with described saddle；During assembling, described driving gear is first installed in the inner side of described support framework, and described support framework is sheathed on the described saddle being provided with tooth bar, the gear that drives on described support framework is made to be meshed with the tooth bar on described saddle, keep described carriage rack position motionless, meanwhile, lift described horizontal job platform successively, and make the fixed part of described horizontal job platform be bolted to the both sides of described support framework.
Effect of the invention is that:
One, increasing for the current architecture configuration number of plies and working procedure is increasingly sophisticated, and existing single saddle climbing type lifting working platform only has a horizontal job platform with regular length, work efficiency is low, and the problem that the construction not adapting to different scale of construction outside vertical surface of building needs, the spacing of the present invention and length-adjustable single saddle multistage lifting work platforms, by arranging multistage horizontal job platform on single-column saddle, each horizontal job platform includes the fixed part being connected with saddle, and it is articulated with the folding part at fixed part two ends, and fixed part is respectively provided with the driving gear of gear-rack drive system and independent power set, these power set can control horizontal job platform independent work, not only ensure the lifting of each horizontal job platform steadily, and make the multistage horizontal job platform can in different layers synchronous construction operation, also multistage horizontal job platform can be made to realize collaborative work according to construction feature, successively complete each working procedure, thus improving the efficiency of construction of external wall；Secondly, each horizontal job platform shrinking and the length stretching the horizontal job platform of flexible by folding part, it is possible to adjust the length of horizontal job platform according to the different in width of building, thus adapting to the construction needs of different scale of construction outside vertical surface of building.
Two, the construction method of spacing of the present invention and length-adjustable single saddle multistage lifting work platforms, first, is connected fixing with ground and side of buildings respectively for saddle, and installs the tooth bar of gear-rack drive system on saddle；Then, assemble the horizontal job platform of at least two, and drive gear and power set accordingly in its fixed part installation gear-rack drive system respectively, then, horizontal job platform is installed on saddle successively, can move along saddle as vertical lifting, increase along with construction height, can at the some vertical standard knots of the continuous over installation of present level saddle, and the tooth bar of corresponding length, horizontal job platform is made to can continue to rise along saddle, to realize the construction operation of follow-up differing heights building；More preferably, folding part can need to shrink or stretch according to construction, to meet the construction requirement of different in width building, it is to avoid move integrally the cumbersome process of single saddle multistage lifting work platforms；Visible, by above-mentioned construction method, make the multistage horizontal job platform can in different layers synchronous construction operation, also multistage horizontal job platform can be made to realize collaborative work according to construction feature, successively complete each working procedure, the length of the multistage horizontal job platform of flexible can also be needed to adapt to the construction needs of different in width building according to construction, thus improve the efficiency of construction of external wall.
Accompanying drawing explanation
Fig. 1 is one embodiment of the invention spacing and the axonometric chart of length-adjustable single saddle multistage lifting work platforms；
Fig. 2 is the side view of the Y direction of Fig. 1；
Fig. 3 is the side view of the X-direction of Fig. 1；
Fig. 4 is the top view of the Z-direction of Fig. 1.
Detailed description of the invention
The spacing present invention proposed below in conjunction with the drawings and specific embodiments and length-adjustable single saddle multistage lifting work platforms and construction method thereof are described in further detail.According to description below and claims, advantages and features of the invention will be apparent from.Hereinafter by cited embodiment in conjunction with accompanying drawing, technology contents and the feature of the present invention will be described in detail.Need to additionally illustrating, accompanying drawing all adopts the form simplified very much and all uses non-ratio accurately, only in order to convenience, the purpose aiding in illustrating the embodiment of the present invention lucidly.For sake of convenience, described below " on ", the upper and lower direction of D score and accompanying drawing consistent, but this can not become the restriction of technical solution of the present invention.
Embodiment one: spacing of the present invention and length-adjustable single saddle multistage lifting work platforms 10 are described in conjunction with Fig. 1 to Fig. 4, vertically arranged and be fixed on the saddle 11 on ground 2 including one, saddle 11 is fixed on the side of building 1 by some wall-attaching equipment 12；On saddle 11, interval arranges two horizontal job platforms 14, each horizontal job platform 14 includes the fixed part 14b being connected on saddle 11, and it is articulated with the folding part 14c at fixed part 14b two ends, and fixed part 14b is respectively provided with driving gear and the power set (not shown) of gear-rack drive system, this saddle 11 arranges the tooth bar (not shown) being meshed with driving gear of gear-rack drive system so that each horizontal job platform 14 all can do vertical lifting motion relative to saddle 11.The concrete structure of said gear rack drives system and power set and annexation are prior art content, and, they are connected with the signal of work platform hoist system is also prior art content, is no longer specifically described herein.
Increasing for the current architecture configuration number of plies and working procedure is increasingly sophisticated, and existing single saddle climbing type lifting working platform only has the horizontal job platform of a regular length, work efficiency is low, and the problem that the construction not adapting to different scale of construction outside vertical surface of building needs, the spacing of the present invention and length-adjustable single saddle multistage lifting work platforms 10, by arranging multistage horizontal job platform 14 on single-column saddle 11, each horizontal job platform 14 includes the fixed part 14b being connected with saddle 11, and it is articulated with the folding part 14c at fixed part 14b two ends, and fixed part 14b is respectively provided with the driving gear of gear-rack drive system and independent power set, these power set can control horizontal job platform 14 independent work, not only ensure that each horizontal job platform 14 lifts steadily, and make the multistage horizontal job platform 14 can in different layers synchronous construction operation, also multistage horizontal job platform 14 can be made to realize collaborative work according to construction feature, successively complete each working procedure, thus improving the efficiency of construction of external wall；Secondly, each horizontal job platform 14 shrinking and the length stretching the horizontal job platform 14 of flexible by folding part 14c, the length of horizontal job platform can be adjusted, thus adapting to the construction needs of different scale of construction outside vertical surface of building according to the different in width of building.The spacing of the present invention and length-adjustable single saddle multistage lifting work platforms 10 are particularly suited for facade and decorate, the work such as whitewash.
Please continue to refer to Fig. 1 to Fig. 4, the fixed part 14b and folding part 14c of above-mentioned horizontal job platform 14 forms by some level standards joint is end to end, and fixed part 14b and quantity and length that in the 14c of folding part, level standard saves need to be determined according to the height of building 1 and width；Fixed part 14b also includes support framework 14a that is affixed with it and that be sheathed on saddle 11, and supporting framework 14a is the frame structure being welded by shaped steel and matching with saddle 11；Drive gear to be fixed on the inner side supporting framework 14a, and be meshed with tooth bar fixing on saddle 11.The fixed part 14b of each horizontal job platform 14 is provided with at least one entrance, and the structure of entrance can be automatically switched off or interlock by automatically controlled mode, to ensure the safety of workmen.Visible, the fixed part 14b of horizontal job platform 14 is fixed on saddle 11 by supporting framework 14a, not only increases the stability in the large of horizontal job platform 14 structure, and ensure that the safety that horizontal job platform 14 vertically runs；Fixed part 14b and folding part 14c is formed by connecting by some level standards joint head and the tail bolt, it is possible to according to the length of the horizontal job platform 14 of width flexible of building 1, it is possible to adapt to the construction requirement of different in width building, and improve work efficiency.
Above-mentioned level standard joint includes the supporting frame being made up and be truss structure of shaped steel, is fixed on the horizontal pedal at supporting frame top, and is vertically fixed on guardrail and the toeguard of supporting frame top.The above-mentioned constituent material of supporting frame and structure make its bearing capacity higher, provide safe and reliable operating platform for workmen.More preferably, one end away from fixed part 14b of folding part 14c horizontal pedal is provided with hook 14d, workmen can pass through to pull hook 14d contraction and the stretching, extension realizing folding part 14c clockwise or counterclockwise, to meet the construction requirement of different in width building, without moving integrally single saddle multistage lifting work platforms 10, thus improve efficiency of construction.
Above-mentioned saddle 11 is formed by some vertical standard knots are end to end, the support body of truss structure is made up and is to vertical standard knot of shaped steel, the quantity of vertical standard knot and length need according to construction and determine, and between adjacent two vertical standard knots, bolt connects, it is simple to dismantle and install；Further, the bottom of saddle 11 is additionally provided with the base 15 being made up and in frame structure of shaped steel, and base 15 is connected with saddle 11 bottom bolt, and base 15 can be set to fixed or portable according to the requirement of construction；It is to say, bottom base 15 can affixed some legs, make leg be connected with the embedded part bolt on ground 2, or, some rollers are set bottom base 15 so that single saddle multistage lifting work platforms 10 can need shift position according to construction.
As shown in Fig. 1, Fig. 3 and Fig. 4, above-mentioned wall-attaching equipment 12 is made up of shaped steel, and one end of wall-attaching equipment 12 is connected with saddle 11 bolt, and the other end of wall-attaching equipment 12 is locked with the pre-embedded bolt in the xoncrete structure of building 1 side；The shape of wall-attaching equipment 12 can be I type or V-type etc., the wall-attaching equipment 12 of the present embodiment is V-shaped, it is more beneficial for saddle 11 and is stably supported in building 1 side, adjacent two wall-attaching equipment 12 are arranged at a certain distance, in the present embodiment, saddle 11 is often increased four vertical standard knots and need to be installed one wall-attaching equipment 12, certainly, according to different construction needs, wall-attaching equipment 12 quantity is set and spacing is different, be not construed as limiting herein.
Further, single saddle multistage lifting work platforms 10 also includes click drive system (not shown), the ratchet of click drive system is fixed on inside fixed part 14b or on its support framework 14a, the crosspiece being meshed with ratchet of click drive system is fixed on saddle 11.Click drive system is it can be avoided that horizontal job platform 14 free falling, and concrete structure and the annexation of above-mentioned click drive system are prior art content, are no longer specifically described herein.
Embodiment two: spacing of the present invention and the construction method of length-adjustable single saddle multistage lifting work platforms are described in conjunction with Fig. 1 to Fig. 4, and step is as follows:
One, saddle 11 it is vertically arranged to ground 2 and fixes, making saddle 11 affixed by some wall-attaching equipment 12 with the side of building 1, and the tooth bar of gear-rack drive system is installed on saddle 11；
Two, the horizontal job platform 14 of at least two is assembled, the fixed part 14b of each horizontal job platform 14 installs gear-rack drive system and drives gear and power set accordingly, and horizontal job platform 14 is installed on saddle 11 successively so that each horizontal job platform 14 all can need to do vertical lifting motion relative to saddle 11 according to construction；
Three, need to shrink or stretch the folding part 14c being articulated with fixed part 14b two ends according to construction so that the length of horizontal job platform 14 disclosure satisfy that the construction needs of different scale of construction building.
The construction method of spacing of the present invention and length-adjustable single saddle multistage lifting work platforms, first, is connected fixing with ground 2 and building 1 side respectively for saddle 11, and installs the tooth bar of gear-rack drive system on saddle 11；Then, assemble the horizontal job platform 14 of at least two, and drive gear and power set accordingly in its fixed part 14b installation gear-rack drive system respectively, then, horizontal job platform 14 is installed on saddle 11 successively, can move along saddle 11 as vertical lifting, increase along with construction height, can at the some vertical standard knots of the continuous over installation of present level saddle 11, and the tooth bar of corresponding length, horizontal job platform 14 is made to can continue to rise along saddle 11, to realize the construction operation of follow-up differing heights building；More preferably, folding part 14c can need to shrink or stretch according to construction, to meet the construction requirement of different in width building, it is to avoid move integrally the cumbersome process of single saddle multistage lifting work platforms 10；Visible, by above-mentioned construction method, make the multistage horizontal job platform 14 can in different layers synchronous construction operation, also multistage horizontal job platform 14 can be made to realize collaborative work according to construction feature, successively complete each working procedure, the length of the multistage horizontal job platform 14 of flexible can also be needed to adapt to the construction needs of different in width building according to construction, thus improve the efficiency of construction of external wall.
Please continue to refer to Fig. 1 to Fig. 4, the fixed part 14b and folding part 14c of above-mentioned horizontal job platform 14 forms by some level standards joint is end to end；Wherein, fixed part 14b also includes the support framework 14a being sheathed on saddle 11, and supporting framework 14a is the frame structure being welded by shaped steel and matching with saddle 11；During assembling, first install in the inner side supporting framework 14a and drive gear, and it is sheathed on the saddle 11 being provided with tooth bar by supporting framework 14a, the gear that drives on support framework 14a is made to be meshed with the tooth bar on saddle 11, keep supporting framework 14a position motionless, meanwhile, lift the fixed part 14b and folding part 14c that are hinged, and make fixed part 14b be bolted to support the both sides of framework 14a.Horizontal job platform 14 is fixed on saddle 11 by supporting framework 14a, not only constructs convenient, improves the stability in the large of horizontal job platform 14 structure, and ensure that the safety that horizontal job platform 14 vertically runs.
Foregoing description is only the description to present pre-ferred embodiments, not any restriction to the scope of the invention, any change that the those of ordinary skill in field of the present invention does according to the disclosure above content, modification, belongs to the protection domain of claims.
Claims (9)
1. spacing and length-adjustable single saddle multistage lifting work platforms, it is characterised in that including:
One is vertically arranged and be fixed on the saddle on ground, and described saddle is fixed on the side of building by some wall-attaching equipment；
On described saddle, interval arranges the horizontal job platform of at least two, each described horizontal job platform includes the fixed part being connected on described saddle, and it is articulated with the folding part at described fixed part two ends, described fixed part is respectively provided with driving gear and the power set of gear-rack drive system, described saddle arranges the tooth bar being meshed with described driving gear of described gear-rack drive system so that each described horizontal job platform all can do vertical lifting motion relative to described saddle.
2. single saddle multistage lifting work platforms according to claim 1, it is characterized in that: the described fixed part of described horizontal job platform and described folding part form by some level standards joint is end to end, described fixed part also includes support framework that is affixed with it and that be sheathed on described saddle, described support framework is the frame structure being welded by shaped steel and matching with described saddle, described driving gear is fixed on the inner side of described support framework, and is meshed with described tooth bar fixing on described saddle.
3. single saddle multistage lifting work platforms according to claim 2, it is characterized in that: described level standard joint includes being made up of shaped steel and being the supporting frame of truss structure, it is fixed on the horizontal pedal at support frame as described above body top, and vertically it is fixed on guardrail and the toeguard of support frame as described above body side surface, one end away from described fixed part of described folding part horizontal pedal is provided with hook.
4. single saddle multistage lifting work platforms according to claim 1, it is characterized in that: described saddle is formed by some vertical standard knots are end to end, the support body of truss structure is made up and is to described vertical standard knot of shaped steel, and between adjacent two described vertical standard knots, bolt connects.
5. single saddle multistage lifting work platforms according to claim 1, it is characterised in that: the bottom of described saddle is additionally provided with the base being made up and in frame structure of shaped steel, and described base is connected with described saddle bottom bolt.
6. single saddle multistage lifting work platforms according to claim 1, it is characterized in that: described wall-attaching equipment is made up of shaped steel, one end of described wall-attaching equipment is connected with described saddle bolt, and the other end of described wall-attaching equipment is locked with the pre-embedded bolt in described side of buildings xoncrete structure.
7. the single saddle multistage lifting work platforms according to any one of claim 2 to 6, it is characterized in that: also include click drive system, the ratchet of described click drive system is fixed on the support framework of described fixed part, and the crosspiece being meshed with described ratchet of described click drive system is fixed on described saddle.
8. the construction method of the adjustable single saddle multistage lifting work platforms of spacing as described in any one of claim 1 to 7, step is as follows:
One, saddle it is vertically arranged to ground and fixes, making described saddle affixed by some wall-attaching equipment with the side of building, and the tooth bar of gear-rack drive system is installed on described saddle；
Two, the horizontal job platform of at least two is assembled, fixed part at each described horizontal job platform is installed described gear-rack drive system and is driven gear and power set accordingly, and described horizontal job platform is installed on described saddle successively so that each described horizontal job platform all can need to do vertical lifting motion relative to described saddle according to construction；
Three, need to shrink or stretch the folding part being articulated with described fixed part two ends according to construction so that the length of described horizontal job platform can adapt to the construction needs of different in width building.
9. construction method according to claim 8, it is characterized in that: the fixed part of described horizontal job platform and folding part form by some level standards joint is end to end, described fixed part also includes the support framework being sheathed on described saddle, and described support framework is the frame structure being welded by shaped steel and matching with described saddle；During assembling, described driving gear is first installed in the inner side of described support framework, and described support framework is sheathed on the described saddle being provided with tooth bar, the gear that drives on described support framework is made to be meshed with the tooth bar on described saddle, keep described carriage rack position motionless, meanwhile, lift described horizontal job platform successively, and make the fixed part of described horizontal job platform be bolted to the both sides of described support framework.
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| CN201610139447.6A CN105715030A (en) | 2016-03-11 | 2016-03-11 | Single-guide-frame multi-stage lifting working platform with adjustable spacing and length and construction method for single-guide-frame multi-stage lifting working platform |
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| CN201610139447.6A CN105715030A (en) | 2016-03-11 | 2016-03-11 | Single-guide-frame multi-stage lifting working platform with adjustable spacing and length and construction method for single-guide-frame multi-stage lifting working platform |
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| CN105715030A true CN105715030A (en) | 2016-06-29 |
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| CN112065025A (en) * | 2020-09-08 | 2020-12-11 | 安徽泗州拖拉机制造有限公司 | Outdoor control mechanism acting on indoor lifter and use method thereof |
| CN112551313A (en) * | 2020-09-08 | 2021-03-26 | 郑州轻工业大学 | Single-upright-column elevator space offset expansion device and elevator |
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| CN101148945A (en) * | 2007-03-02 | 2008-03-26 | 顾粉兵 | Building exterior wall finishing automatic lifting workbench |
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