CN112681704A - Slope scaffold structure and construction method - Google Patents
Slope scaffold structure and construction method Download PDFInfo
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- CN112681704A CN112681704A CN202011477861.0A CN202011477861A CN112681704A CN 112681704 A CN112681704 A CN 112681704A CN 202011477861 A CN202011477861 A CN 202011477861A CN 112681704 A CN112681704 A CN 112681704A
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Abstract
The invention relates to a side slope scaffold structure, which comprises a pre-embedded prefabricated integral anchoring piece reinforced concrete foundation, a scaffold and rock mass anchor bar temporary continuous batten integral pull-connection system, a scaffold inner suspension translational and abduction operating platform structure and a scaffold movable sliding type operating platform, wherein the scaffold inner suspension translational and abduction operating platform structure comprises a plurality of operating platforms; the embedded prefabricated integral anchoring piece reinforced concrete foundation comprises a prefabricated reinforced concrete foundation and an integral anchoring piece; the scaffold and rock mass anchor bar temporary continuous batten integral tie-connection system comprises scaffold steel pipes, scaffold diagonal braces, anchor bars, continuous battens, connecting bars and annular hoops; the scaffold inner suspension translational and outward-extending operation platform structure comprises a scaffold steel pipe, an L-shaped rest frame and a connecting shaft. The invention has the beneficial effects that: the invention is provided with the operation platform structure with the inner suspension support capable of translating and extending out of the scaffold, so that the problem of construction inconvenience along with height change can be effectively reduced, and the construction efficiency can be greatly improved through the movement of the platform.
Description
Technical Field
The invention relates to a side slope scaffold structure and a construction method, belongs to the field of water conservancy and municipal retaining wall engineering, and is suitable for construction engineering of a complicated terrain spillway side slope, in particular to a rock mass side slope.
Background
Along with the rapid development of national urbanization, more and more town roads are built, the retaining wall serving as an important accessory project of the road is also greatly developed, a plurality of light and attractive reinforced concrete retaining walls replace heavy grouted block stone retaining walls, high and steep slopes and high dangerous rock masses, a scaffold in a supporting project is an important link of slope supporting construction, the quality of scaffold erection and construction safety management directly influence the safe operation of the scaffold, further influence the safety, progress and cost of engineering construction, the construction period is prolonged due to the problems of unstable scaffold or inconvenient operation, low construction speed and the like in the slope construction process, and therefore the construction of the slope scaffold has to be paid high attention to.
In view of this, a new side slope scaffold system structure and a new construction method are urgently needed to overcome the defects of low construction speed, unstable scaffold, inconvenient construction along with increase of height, poor personnel safety and the like of the traditional rock side slope, so that the construction efficiency is improved, the construction quality is improved, and the safety and reliability of the construction quality are ensured.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a slope scaffold structure and a construction method, wherein the slope scaffold structure and the construction method can effectively improve the stability of a scaffold, improve the simplicity and convenience of retaining wall construction, improve the transportation convenience of construction materials, have high construction efficiency, and have the characteristics of environmental protection, energy conservation, convenience in construction, good effect, simplicity in operation, reusability of materials and the like.
The side slope scaffold structure comprises a pre-embedded prefabricated integral anchoring piece reinforced concrete foundation, a scaffold and rock mass anchor bar temporary continuous batten integral pull-connection system, a scaffold inner suspension translational and outward expansion operating platform structure and a scaffold movable sliding lifting operating platform;
the embedded prefabricated integral anchoring piece reinforced concrete foundation comprises a prefabricated reinforced concrete foundation and an integral anchoring piece, the prefabricated reinforced concrete foundation is embedded below a ground line at the bottom of a revetment, the integral anchoring piece is arranged in the prefabricated reinforced concrete foundation, and the extending end of the integral anchoring piece is connected with a scaffold steel pipe;
the scaffold and rock mass anchor bar temporary continuous batten integral pulling and connecting system comprises scaffold steel pipes, scaffold diagonal braces, anchor bars, continuous battens, connecting bars and annular hoops, wherein the scaffold steel pipes and the scaffold diagonal braces are assembled into a scaffold, the anchor bars are driven into a rock mass at equal intervals, the continuous battens fix the whole row of anchor bars, one ends of the connecting bars are connected to the continuous battens, and the other ends of the connecting bars are fixedly connected with the scaffold steel pipes through the annular hoops;
the scaffold internally-suspended translational and outward-extending operating platform structure comprises scaffold steel pipes, an outward-extending operating platform, an L-shaped rest, a rail, a pulley and a connecting shaft, wherein the scaffold steel pipes comprise scaffold vertical steel pipes and scaffold transverse steel pipes, the L-shaped rest is fixed on the scaffold steel pipes in a spot welding manner, the rail is installed on the L-shaped rest, the pulley is fixed at the bottom of the outward-extending operating platform through a bolt, the pulley translates on the rail, the connecting shaft is connected with the two pulleys, and the outward-extending operating platform is arranged at the scaffold;
the movable sliding type operation platform of the scaffold comprises a vertical positioning steel pipe, a sliding ring, a placement platform and a draw hook, wherein the top end and the bottom end of the vertical positioning steel pipe are fixedly connected on the scaffold steel pipe through fastening tie bars, the draw hook is welded on the placement platform, and the sliding ring is sleeved on the vertical positioning steel pipe and connected with the draw hook.
Preferably, the method comprises the following steps: the device comprises a driving device placing frame, a pulley driving device and a driving device control switch, wherein the driving device placing frame is fixed on the lower portion of the abduction operating platform, the pulley driving device is placed in the driving device placing frame, and the driving device control switch is installed on the side edge of the abduction operating platform.
Preferably, the method comprises the following steps: still include frame fixed platform, drive mechanism, lift drive and lift control switch, frame fixed platform is fixed in the scaffold frame top and consolidates through the bracing, on drive mechanism installs and is fixed in frame fixed platform, drive mechanism shelved the platform through haulage rope one end connection, and the other end is connected with lift drive, lift drive is located ground, the lift control switch is installed in lift drive side.
The construction method of the side slope scaffold structure comprises the following steps:
step one, construction preparation: completely familiarizing installation drawings, well performing on-site traffic control, protecting the on-site to be clean and tidy, and preparing construction materials and machinery to enter a field;
step two, pre-burying the prefabricated integral anchoring piece reinforced concrete foundation: the prefabricated reinforced concrete foundation is embedded below a ground line at the bottom of the revetment after being prefabricated, the integral anchoring piece is arranged in the prefabricated reinforced concrete foundation, and the extending end of the integral anchoring piece is connected with a scaffold steel pipe;
step three, erecting a scaffold: erecting scaffold steel pipes and scaffold diagonal braces according to construction requirements to form a scaffold;
step four, installing the movable sliding lifting type operating platform of the scaffold: the top end and the bottom end of the vertical positioning steel pipe are connected and fixed on the scaffold steel pipe through fastening tie bars, a drag hook is welded on the placing platform, a sliding ring is sleeved on the vertical positioning steel pipe and is connected with the drag hook, so that the placing platform moves up and down along the vertical positioning steel pipe, the rack fixing platform is fixed at the top end of the scaffold and is reinforced through an inclined strut, a traction mechanism is installed and fixed on the rack fixing platform, one end of the traction mechanism is connected with the placing platform through a traction rope, the other end of the traction mechanism is connected with a lifting driving device, the lifting driving device is positioned on the ground, a lifting control switch is installed;
step five, constructing the integral pulling and connecting system of the scaffold and the temporary continuous batten of the rock mass anchor bar: the anchor bars are driven into the rock mass at a certain interval, the continuous batten is used for fixing the whole row of anchor bars, one end of each connecting bar is connected to the continuous batten, the other end of each connecting bar is fixedly connected with the scaffold steel pipe through the annular hoop, and the construction is carried out from bottom to top along with the construction requirement of the retaining wall;
step six, the scaffold inner suspension can be installed in a translation and abduction operation platform structure: the L-shaped rest frame is fixed on a scaffold steel pipe in a spot welding mode, the rail is installed on the L-shaped rest frame, the pulleys are fixed at the bottom of the outward-extending operating platform through bolts and translate on the rail, the connecting shaft is connected with the two pulleys and keeps the pulleys to move simultaneously, the driving device rest frame is fixed at the lower portion of the outward-extending operating platform, the pulley driving device is placed in the driving device rest frame and drives the pulleys to move, the driving device control switch is installed on the side edge of the outward-extending operating platform, and construction is required to be conducted from bottom to top along with the;
and seventhly, constructing after assembling is finished according to needs.
The invention has the beneficial effects that:
(1) the invention adopts the pre-embedded prefabricated integral anchoring piece reinforced concrete foundation and the integral pulling connection system of the scaffold and the rock mass anchor bar temporary continuous batten, effectively ensures the stability of the scaffold, has simple operation, can repeatedly use materials and ensures the safety and reliability of the construction process.
(2) The invention is provided with the operation platform structure with the inner suspension support capable of translating and extending out of the scaffold, so that the problem of construction inconvenience along with height change can be effectively reduced, and the construction efficiency can be greatly improved through the movement of the platform.
(3) The movable sliding lifting type operating platform provided by the invention is provided with the scaffold, so that the construction of personnel and the transportation of materials are facilitated, and the construction efficiency is improved under the condition of ensuring the safety of the personnel.
Drawings
FIG. 1 is a schematic diagram of a slope scaffold architecture;
FIG. 2 is a schematic structural view of an integral tie-in system of a temporary continuous slat of rock mass anchor bars;
FIG. 3 is a schematic view of the mounting structure of the scaffold inner suspension translatable and extendable operating platform;
fig. 4 is a sectional view taken along line a-a in fig. 3.
Description of reference numerals: 1-rock mass, 2-ground line, 3-precast reinforced concrete foundation, 4-integral anchoring piece, 5-anchor bar, 6-continuous batten, 7-connecting bar, 8-annular hoop, 9-scaffold diagonal brace, 10-scaffold steel pipe, 11-vertical positioning steel pipe, 12-fastening lacing wire, 13-frame fixing platform, 14-diagonal brace, 15-traction mechanism, 16-lifting driving device, 17-lifting control switch, 18-laying platform, 19-drag hook, 20-sliding ring, 21-outward-extending operating platform, 22-L-shaped laying frame, 23-rail, 24-pulley, 25-bolt, 26-driving device laying frame, 27-pulley driving device, 28-driving device control switch, 29-connecting shaft, 30-scaffold vertical steel pipe and 31-scaffold transverse steel pipe.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Example one
As shown in fig. 1 to 4, the slope scaffold structure comprises an embedded prefabricated integral anchoring member reinforced concrete foundation, a scaffold and rock mass anchor bar temporary continuous strip plate integral pulling connection system, a scaffold inner suspension support translational and outward expansion operating platform structure and a scaffold movable sliding and lifting operating platform.
The embedded prefabricated integral anchoring part reinforced concrete foundation comprises a prefabricated reinforced concrete foundation 3 and an integral anchoring part 4, the prefabricated reinforced concrete foundation 3 is embedded below a ground line 2 at the bottom of a revetment after being prefabricated, the integral anchoring part 4 is arranged in the prefabricated reinforced concrete foundation 3, and the extending end of the integral anchoring part 4 is connected with a scaffold steel pipe 10.
The scaffold and the whole system of drawing and connecting of interim continuous slat of rock mass dowel bar include scaffold steel pipe 10, scaffold diagonal brace 9, dowel bar 5, continuous slat 6, splice bar 7, annular staple bolt 8, scaffold steel pipe 10 and scaffold diagonal brace 9 assemble into the scaffold as required, during rock mass 1 is squeezed into according to the determining deviation to dowel bar 5, the fixed whole row of dowel bar 5 of continuous slat 6, 7 one end of splice bar are connected on continuous slat 6, and the other end passes through annular staple bolt 8 and scaffold steel pipe 10 fastening connection.
But the translation of suspension and abduction operation platform structure includes scaffold steel pipe 10, abduction operation platform 21, L type rest 22, track 23, pulley 24, links axle 29 in the scaffold, scaffold steel pipe 10 includes the vertical steel pipe 30 of scaffold and the horizontal steel pipe 31 of scaffold, L type rest 22 spot welding is fixed in on scaffold steel pipe 10, and abduction operation platform 21 arranges in scaffold department, track 23 installs on L type rest 22, pulley 24 is fixed in abduction operation platform 21 bottom through bolt 25, can translate on the track, link axle 29 and connect two pulleys, keep the pulley to remove simultaneously.
The movable sliding type operation platform of the scaffold comprises a vertical positioning steel pipe 11, a sliding ring 20 placement platform 18 and a draw hook 19, wherein the top end and the bottom end of the vertical positioning steel pipe 11 are fixedly connected onto the scaffold steel pipe 10 through a fastening tie bar 12, the draw hook 19 is welded on the placement platform 18, the sliding ring 20 is sleeved on the vertical positioning steel pipe 11 and is connected with the draw hook 19, and the placement platform can move up and down along the vertical positioning steel pipe 11.
As an improved specific implementation manner, the device further comprises a driving device placing frame 26, a pulley driving device 27 and a driving device control switch 28, wherein the driving device placing frame 26 is fixed at the lower part of the abduction operating platform 21, the pulley driving device 27 is placed in the driving device placing frame 26 and can drive the pulley to move, and the driving device control switch 28 is installed at the side edge of the abduction operating platform 21, so that the personnel can conveniently control and operate.
As an improved specific implementation manner, the scaffold further comprises a rack fixing platform 13, a traction mechanism 15, a lifting driving device 16 and a lifting control switch 17, wherein the rack fixing platform 13 is fixed at the top end of the scaffold and is reinforced by an inclined strut 14, the traction mechanism 15 is installed and fixed on the rack fixing platform 13, one end of the traction rope is connected with a placing platform 18, the other end of the traction rope is connected with the lifting driving device 16, the lifting driving device 16 is located on the ground, and the lifting control switch 17 is installed on the side edge of the lifting driving device 16 and controls the lifting driving device 16 to pull.
Example two
The construction method of the side slope scaffold structure comprises the following steps:
step one, construction preparation: and (4) completely familiarizing installation drawings, well performing on-site traffic control, protecting the on-site to be clean and tidy, and preparing construction materials and machinery to enter a field.
Step two, pre-burying the prefabricated integral anchoring piece reinforced concrete foundation: the prefabricated reinforced concrete foundation 3 is embedded below the ground line 2 at the bottom of the revetment after being prefabricated, the integral anchoring piece 4 is arranged in the prefabricated reinforced concrete foundation 3, and the extending end is connected with the scaffold steel pipe 10.
Step three, erecting a scaffold: and erecting the scaffold steel pipe 10 and the scaffold diagonal brace 9 according to construction requirements to form the scaffold.
Step four, installing the movable sliding lifting type operating platform of the scaffold: the top and the bottom of vertical location steel pipe 11 are connected through fastening lacing wire 12 and are fixed on scaffold steel pipe 10, shelve platform 18 welding and have drag hook 19, slip ring 20 overlaps in vertical location steel pipe 11, and be connected with drag hook 19, can make shelve the platform and reciprocate along vertical location steel pipe 11, frame fixed platform 13 is fixed in the scaffold top, and consolidate through bracing 14, drive mechanism 15 installs and is fixed in on frame fixed platform 13, shelve platform 18 through haulage rope one end connection, the other end is connected with lift drive 16, lift drive 16 is located ground, lift control switch 17 installs in lift drive 16 side, control lift drive 16 pulls.
Step five, constructing the integral pulling and connecting system of the scaffold and the temporary continuous batten of the rock mass anchor bar: in the rock mass 1 is squeezed into to dowel 5 according to the determining deviation, with the fixed whole row of dowel 5 of continuous slat 6, 7 one end of splice bar are connected on continuous slat 6, and the other end passes through annular staple bolt 8 and scaffold steel pipe 10 fastening connection, from up construction down along with the barricade construction needs.
Step six, the scaffold inner suspension can be installed in a translation and abduction operation platform structure: l type rest 22 spot welding is fixed in on scaffold steel pipe 10, track 23 is installed on L type rest 22, pulley 24 is fixed in abduction operation platform 21 bottom through bolt 25, can translate on the track, even axle 29 connects two pulleys, keep the pulley to remove simultaneously, drive arrangement rest 26 is fixed in abduction operation platform 21 lower part, pulley drive arrangement 27 is placed in drive arrangement rest 26, can drive the pulley and remove, drive arrangement control switch 28 is installed in abduction operation platform 21 side, the personnel of being convenient for control the operation, along with the barricade construction needs from bottom to top construction.
And seventhly, constructing after assembling is finished according to needs.
Claims (4)
1. The slope scaffold structure is characterized by comprising a pre-embedded prefabricated integral anchoring piece reinforced concrete foundation, a scaffold and rock mass anchor bar temporary continuous batten integral pull-connection system, a scaffold inner suspension support translational and abduction operating platform structure and a scaffold movable sliding type operating platform;
the embedded prefabricated integral anchoring piece reinforced concrete foundation comprises a prefabricated reinforced concrete foundation (3) and an integral anchoring piece (4), the prefabricated reinforced concrete foundation (3) is embedded below a ground line (2) at the bottom of a revetment, the integral anchoring piece (4) is arranged in the prefabricated reinforced concrete foundation (3), and the extending end of the integral anchoring piece (4) is connected with a scaffold steel pipe (10);
the integral pulling and connecting system for the scaffold and the rock mass anchor bar temporary continuous batten comprises a scaffold steel pipe (10), scaffold inclined struts (9), anchor bars (5), continuous battens (6), connecting ribs (7) and an annular hoop (8), wherein the scaffold steel pipe (10) and the scaffold inclined struts (9) are assembled into the scaffold, the anchor bars (5) are driven into a rock mass (1) at equal intervals, the continuous battens (6) fix a whole row of anchor bars (5), one end of each connecting rib (7) is connected to the corresponding continuous batten (6), and the other end of each connecting rib is fixedly connected with the corresponding scaffold steel pipe (10) through the annular hoop (8);
the scaffold internally-suspended translational and abduction operating platform structure comprises a scaffold steel pipe (10), an abduction operating platform (21), an L-shaped rest frame (22), a track (23), pulleys (24) and a connecting shaft (29), wherein the scaffold steel pipe (10) comprises a scaffold vertical steel pipe (30) and a scaffold transverse steel pipe (31), the L-shaped rest frame (22) is fixed on the scaffold steel pipe (10) in a spot welding manner, the track (23) is installed on the L-shaped rest frame (22), the pulleys (24) are fixed at the bottom of the abduction operating platform (21) through bolts (25), the pulleys (24) translate on the track, the connecting shaft (29) is connected with the two pulleys, and the abduction operating platform (21) is arranged at the scaffold;
the movable sliding type operation platform of the scaffold comprises a vertical positioning steel pipe (11), a sliding ring (20), a placement platform (18) and a draw hook (19), wherein the top end and the bottom end of the vertical positioning steel pipe (11) are fixedly connected onto the scaffold steel pipe (10) through a fastening tie bar (12), the draw hook (19) is welded on the placement platform (18), and the sliding ring (20) is sleeved on the vertical positioning steel pipe (11) and is connected with the draw hook (19).
2. The scaffolding structure for side slopes according to claim 1, further comprising a driving means mounting frame (26), a pulley driving means (27) and a driving means control switch (28), wherein the driving means mounting frame (26) is fixed to a lower portion of the platform (21), the pulley driving means (27) is placed in the driving means mounting frame (26), and the driving means control switch (28) is installed at a side of the platform (21).
3. The slope scaffold structure according to claim 1, further comprising a frame fixing platform (13), a traction mechanism (15), a lifting driving device (16) and a lifting control switch (17), wherein the frame fixing platform (13) is fixed at the top end of the scaffold and is reinforced by an inclined strut (14), the traction mechanism (15) is fixedly installed on the frame fixing platform (13), one end of the traction mechanism (15) is connected with the placing platform (18) through a traction rope, the other end of the traction mechanism is connected with the lifting driving device (16), the lifting driving device (16) is located on the ground, and the lifting control switch (17) is installed at the side edge of the lifting driving device (16).
4. A method of constructing a scaffolding structure for use on a slope according to claim 1, including the steps of:
step one, construction preparation: completely familiarizing installation drawings, well performing on-site traffic control, protecting the on-site to be clean and tidy, and preparing construction materials and machinery to enter a field;
step two, pre-burying the prefabricated integral anchoring piece reinforced concrete foundation: the prefabricated reinforced concrete foundation (3) is embedded below a ground line (2) at the bottom of the revetment after being prefabricated, the integral anchoring piece (4) is arranged in the prefabricated reinforced concrete foundation (3), and the extending end of the integral anchoring piece (4) is connected with a scaffold steel pipe (10);
step three, erecting a scaffold: erecting the scaffold steel pipe (10) and the scaffold diagonal brace (9) according to construction requirements to form a scaffold;
step four, installing the movable sliding lifting type operating platform of the scaffold: the top end and the bottom end of a vertical positioning steel pipe (11) are connected and fixed on a scaffold steel pipe (10) through fastening tie bars (12), a draw hook (19) is welded on a shelving platform (18), a sliding ring (20) is sleeved on the vertical positioning steel pipe (11) and connected with the draw hook (19), so that the shelving platform moves up and down along the vertical positioning steel pipe (11), a rack fixing platform (13) is fixed at the top end of the scaffold and reinforced through an inclined strut (14), a traction mechanism (15) is installed and fixed on the rack fixing platform (13), one end of the traction mechanism (15) is connected with the shelving platform (18) through a traction rope, the other end of the traction mechanism is connected with a lifting driving device (16), the lifting driving device (16) is located on the ground, a lifting control switch (17) is installed on the side edge of the lifting driving device (16), and;
step five, constructing the integral pulling and connecting system of the scaffold and the temporary continuous batten of the rock mass anchor bar: the anchor bars (5) are driven into the rock mass (1) at certain intervals, the continuous battens (6) are used for fixing the whole row of anchor bars (5), one end of each connecting bar (7) is connected to the continuous battens (6), the other end of each connecting bar is fixedly connected with the scaffold steel pipe (10) through the annular anchor ear (8), and construction is carried out from bottom to top along with the construction requirement of the retaining wall;
step six, the scaffold inner suspension can be installed in a translation and abduction operation platform structure: the L-shaped shelf (22) is fixed on a scaffold steel pipe (10) in a spot welding manner, a rail (23) is installed on the L-shaped shelf (22), pulleys (24) are fixed at the bottom of an abduction operating platform (21) through bolts (25), the pulleys (24) translate on the rail, a connecting shaft (29) is connected with the two pulleys and keeps the pulleys to move simultaneously, a driving device placing frame (26) is fixed at the lower part of the abduction operating platform (21), a pulley driving device (27) is placed in the driving device placing frame (26) and drives the pulleys to move, a driving device control switch (28) is installed on the side edge of the abduction operating platform (21), and construction is carried out from bottom to top along with the construction requirement of a retaining wall;
and seventhly, constructing after assembling is finished according to needs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011477861.0A CN112681704B (en) | 2020-12-15 | 2020-12-15 | Slope scaffold structure and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011477861.0A CN112681704B (en) | 2020-12-15 | 2020-12-15 | Slope scaffold structure and construction method |
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| CN101225706A (en) * | 2007-01-19 | 2008-07-23 | 西北工业大学 | Adhered self-lifting highrise operation platform |
| DE102012003391A1 (en) * | 2012-02-23 | 2013-08-29 | Mauderer Alutechnik Gmbh | Lifting and securing device for a ladder frame and lifting and securing ladder scaffold |
| CN106029549A (en) * | 2013-12-09 | 2016-10-12 | 黑斯勒有限公司 | Vertically elevating mobile work platform |
| CN110004952A (en) * | 2019-05-10 | 2019-07-12 | 中冶建工集团有限公司 | Auxiliary operation rack and its installation method for high gradient slope supporting |
| CN110735525A (en) * | 2019-10-22 | 2020-01-31 | 武汉建工集团股份有限公司 | prefabricated self-standing steel tube scaffold system |
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2020
- 2020-12-15 CN CN202011477861.0A patent/CN112681704B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225706A (en) * | 2007-01-19 | 2008-07-23 | 西北工业大学 | Adhered self-lifting highrise operation platform |
| DE102012003391A1 (en) * | 2012-02-23 | 2013-08-29 | Mauderer Alutechnik Gmbh | Lifting and securing device for a ladder frame and lifting and securing ladder scaffold |
| CN106029549A (en) * | 2013-12-09 | 2016-10-12 | 黑斯勒有限公司 | Vertically elevating mobile work platform |
| CN110004952A (en) * | 2019-05-10 | 2019-07-12 | 中冶建工集团有限公司 | Auxiliary operation rack and its installation method for high gradient slope supporting |
| CN110735525A (en) * | 2019-10-22 | 2020-01-31 | 武汉建工集团股份有限公司 | prefabricated self-standing steel tube scaffold system |
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