CN110528847A - Floor edge construction operation platform - Google Patents
Floor edge construction operation platform Download PDFInfo
- Publication number
- CN110528847A CN110528847A CN201910653508.4A CN201910653508A CN110528847A CN 110528847 A CN110528847 A CN 110528847A CN 201910653508 A CN201910653508 A CN 201910653508A CN 110528847 A CN110528847 A CN 110528847A
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- CN
- China
- Prior art keywords
- platform
- underlying
- layer
- floor edge
- construction operation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 41
- 230000007704 transition Effects 0.000 claims abstract description 7
- 230000002787 reinforcement Effects 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/36—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/006—Scaffold with cantilevered sections, e.g. to accommodate overhangs or recesses in the facade
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/10—Steps or ladders specially adapted for scaffolds
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
- E04G2001/242—Scaffolds movable on wheels or tracks
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
- E04G2001/248—Inclined struts
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a floor edge construction operating platform which comprises a bottom bearing layer, a middle transition layer and a construction operating layer, wherein the middle transition layer is arranged above the bottom bearing layer and is connected with the bottom bearing layer through a bottom ladder stand, and the construction operating layer is arranged above the front end of the middle transition layer and is connected with the middle transition layer through a top ladder stand. The invention provides a floor edge construction operating platform which can well provide a platform for constructors to construct the outer side of a building, greatly reduces the use cost of products due to convenient use, is convenient to move, improves the use flexibility of the products, well protects the safety of the constructors, and improves the use safety of the products.
Description
Technical field
The invention belongs to engineering construction field, in particular to a kind of floor edge construction operation platforms.
Background technique
It in building engineering construction, constructs to the part to floor edge, then needs to build height on the outside of floor
Layer scaffold makes construction personnel reach construction location to complete to construct by way of hanging.
But the shortcomings that above-mentioned method, is as follows:
Building time-consuming and laborious and needing to expend a large amount of material for high-rise scaffold, greatly improves the cost of construction,
The duration for also greatly extending construction simultaneously is unfavorable for improving project progress.
The mode hung mainly has that platform is hung and construction personnel hangs, the higher cost that platform is hung and equipment is installed
With use complexity, not only needing to expend longer installation period extends integrated engineering progress, it is also necessary to expend the higher time with
Energy is to transport and install equipment, to improve the cost of construction；Construction personnel hangs, because construction personnel is suspended in midair,
The difficulty that construction personnel's construction can greatly be improved, to reduce the efficiency of construction, while there is also great construction risks, no
Meet the requirement of today's society.
Summary of the invention
It is an object of the invention to overcome the above problem, a kind of floor edge construction operation platform is provided, can be good at
A platform is provided for construction personnel just to greatly reduce what product used using putting to constructing on the outside of building
Cost, while conveniently moving improve the using flexible of product, while also can be well protected the safety of construction personnel, mention
The safety that high product uses.
The purpose of the invention is achieved by the following technical solution:
A kind of floor edge construction operation platform, including bottom bearing bed are arranged above the bearing bed of bottom and pass through bottom ladder
Excessive layer in being connected with bottom bearing bed, and be arranged in above excessive layer front end and by top ladder and middle transition zone phase
The constructing operation layer of connection.
Further, four rollings of underlying platform downside quadrangle are arranged in mainly by underlying platform in the bottom bearing bed
Wheel is vertically arranged in two short support columns on the upside of underlying platform at surface rear end two corners, is vertically arranged in underlying platform upper side
Two root long support columns at the two corners of front end, and the counterweight fixed platform composition of surface rear end on the upside of underlying platform is set.
Further, excessively layer is mainly by middle layer platform in described, and before being vertically arranged platform upper side in middle level
Hold end middle layer support bar group at；The downside surface rear end two corners of affiliated middle layer platform are erected at the top of short support column, in this
Layer platform strut of being drawn money on credit runs through and platform strut of being drawn money on credit in middle layer is bolted at the position with the strut of drawing money on credit.
Preferably, the width of the middle layer platform is identical as underlying platform, the length of the middle layer platform is slightly longer than bottom
Platform, and the length of the middle layer platform is less than the length of 5/4 underlying platform.
Preferably, the counterweight fixed platform is arranged by the counterweight cabinet with door being fixed on underlying platform in counterweight
Hydraulic cylinder inside cabinet is vertically arranged in counterweight cabinet upper side central location and thinks downward through counterweight cabinet upper through middle layer platform
Hydraulic stem, and be arranged in hydraulic stem top fixing head composition；The hydraulic stem and hydraulic cylinder pass through piping connection.
Preferably, the upper side of the fixing head is provided with several metal nails or rubber pad.
Further, the constructing operation layer is by operating platform, and be circumferentially positioned at operating platform upper side front end,
The guardrail of left end and right end composition.
Preferably, the left and right sides front end of the operating platform is respectively arranged with one piece of main bearing diagonal beam, two pieces of masters are oblique
The bottom end of supporting beam is separately fixed at center position at left and right sides of underlying platform；The left and right sides front end of the middle layer platform point
It is not provided with one piece of sub- bearing diagonal beam tilted down, the bottom end of two pieces of bearing diagonal beams is separately fixed on two root long support columns.
Preferably, the left and right ends of the underlying platform leading flank are respectively forwardly provided with a horizontal additional reinforcement
Horizontal block is additionally provided with an additional reinforcement skewback, one end of the additional reinforcement skewback and auxiliary in the front end of additional reinforcement horizontal block
Horizontal block is connected, the other end is connected with strut of drawing money on credit for reinforcing.
Preferably, the quantity of the bottom ladder is two, it is separately positioned on the left and right sides of underlying platform, and bottom ladder
The fixed platform upper and lower end in middle level in upper end be fixed on underlying platform；The upper end of affiliated top ladder is fixed on the operational platform,
On the fixed platform in middle level in lower end.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
Structure of the invention is simple, can be good at providing a platform for construction personnel with to applying on the outside of building
Work just greatly reduces the cost that product uses using putting, while conveniently moving, improves the using flexible of product,
The safety that also can be well protected construction personnel simultaneously, improves the safety that product uses.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Description of symbols: 1, underlying platform；2, middle layer platform；3, operating platform；4, idler wheel；5, counterweight cabinet；6, hydraulic
Bar；7, fixing head；8, bottom ladder；9, ladder is pushed up；10, guardrail；11, main bearing diagonal beam；12, sub- bearing diagonal beam；13, additional reinforcement
Skewback；14, additional reinforcement horizontal block.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, a kind of floor edge construction operation platform, including bottom bearing bed, be arranged above the bearing bed of bottom and
Excessive layer in being connected by bottom ladder 8 with bottom bearing bed, and be arranged in above excessive layer front end and by pushing up ladder 9
The constructing operation layer being connected with middle transition zone.
Mainly by underlying platform 1, the four rolling 4 of 1 downside quadrangle of underlying platform is arranged in, vertically in the bottom bearing bed
Two short support columns at 1 upside surface rear end two corners of underlying platform are set, 1 upper side front end two of underlying platform is vertically arranged in
Two root long support columns at angle, and the counterweight fixed platform composition of 1 upside surface rear end of underlying platform is set.
Idler wheel selects fixable idler wheel, product need using when idler wheel can be fixed and make to avoid product
With sliding in the process, which is the prior art, and those skilled in the art is not necessarily to pay creative labor
The dynamic setting and use that can complete the idler wheel, herein just without repeating.
Excessive layer is mainly by middle layer platform 2 in described, and is vertically arranged in 2 upper side forward end of platform in middle level
Layer support bar group at；The downside surface rear end two corners of affiliated middle layer platform 2 are erected at the top of short support column, 2 quilt of middle layer platform
Strut of drawing money on credit runs through and middle layer platform 2 is drawn money on credit, and strut is bolted at position with the strut of drawing money on credit.
The width of the middle layer platform 2 is identical as underlying platform 1, and the length of the middle layer platform 2 is slightly longer than underlying platform 1,
And the length of the middle layer platform 2 is less than the length of 5/4 underlying platform 1.
The length of middle layer platform is limited, main purpose is to improve the overall stability of product, and product is avoided to exist
It is broken under leverage because local pressure is excessive.
The counterweight fixed platform is arranged inside counterweight cabinet 5 by the counterweight cabinet 5 with door being fixed on underlying platform 1
Hydraulic cylinder, be vertically arranged in 5 upper side central location of counterweight cabinet and think downward through counterweight cabinet 5 upper through middle layer platform 2
Hydraulic stem 6, and the composition of fixing head 7 on 6 top of hydraulic stem is set；The hydraulic stem 6 passes through piping connection with hydraulic cylinder.
In use, hydraulic stem will extend under the driving of hydraulic cylinder, so that fixing head moves upwards until withstanding on upside
Metope on.If upper side wall is unable to complete fixation when in use, need that the mass such as iron block, lead are added in counterweight cabinet
Product, to guarantee that product will not be overturned because counterweight is inadequate.
The upper side of the fixing head is provided with several metal nails or rubber pad.
The fixing head is arranged to detachable, is threadedly secured to the top of hydraulic stem, in rough cement wall
Metal nail is selected to avoid product from shaking when in use preferably to hammer into wall on face, in order to preferably protect wall,
The length of the metal nail should be controlled in 0.5-1cm；Rubber pad is then selected on smooth metope, to provide better stiction
Wall can also be avoided to be destroyed well simultaneously.
The constructing operation layer is by operating platform 3, and is circumferentially positioned at 3 upper side front end of operating platform, left end and the right side
The guardrail 10 at end forms.
Guardrail can guarantee the safety of construction personnel, and when being constructed, construction personnel can also be by safety rope by body
It lies on the guardrail to be further ensured that safety.
The left and right sides front end of the operating platform 3 is respectively arranged with one piece of main bearing diagonal beam 11, two pieces of main bearing diagonal beams
11 bottom end is separately fixed at 1 left and right sides center position of underlying platform；Distinguish the left and right sides front end of the middle layer platform 2
It is provided with one piece of sub- bearing diagonal beam 12 tilted down, the bottom end of two pieces of bearing diagonal beams 12 is separately fixed at two root long support columns
On.
The purpose that main bearing diagonal beam and sub- bearing diagonal beam is arranged is to further increase the stabilization of middle layer platform and operation platform
Property, and then improve reliability when product uses.
The left and right ends of 1 leading flank of underlying platform are respectively forwardly provided with a horizontal additional reinforcement horizontal block 14,
An additional reinforcement skewback 13, one end of the additional reinforcement skewback 13 and auxiliary are additionally provided in the front end of additional reinforcement horizontal block 14
Horizontal block 14 is connected, the other end is connected with strut of drawing money on credit for reinforcing.
The effect of additional reinforcement skewback and additional reinforcement horizontal block is to further increase the intensity for strut of drawing money on credit, and avoids long support
Bar deforms in use.
The quantity of the bottom ladder 8 is two, is separately positioned on the left and right sides of underlying platform 1, and the upper end of bottom ladder 8
Fixed 2 upper and lower end of platform in middle level is fixed on underlying platform 1；It is upper and lower that the upper end of affiliated top ladder 9 is fixed on operating platform 3
On the fixed platform 2 in middle level in end.
When in use, the assembling of product is completed in the lower layer for the floor constructed, and operation platform release is built
Building keeps it hanging, and then fixed idler whell is rolled with placing idler wheel, and controls hydraulic stem elongation so that fixing head is withstood upwards
Ceiling to complete the fixation of product, finally, construction personnel pass sequentially through bottom ladder and top ladder enter operation platform after will peace
Full rope lies on guardrail and can construct.
As described above, the present invention can be realized well.
Claims (10)
1. a kind of floor edge construction operation platform, it is characterised in that: including bottom bearing bed, be arranged above the bearing bed of bottom and logical
Cross bottom ladder (8) be connected with bottom bearing bed in excessive layer, and be arranged in above excessive layer front end and by push up ladder
(9) the constructing operation layer being connected with middle transition zone.
2. a kind of floor edge construction operation platform according to claim 1, it is characterised in that: the bottom bearing bed is main
By underlying platform (1), the four rolling (4) in underlying platform (1) downside quadrangle is set, underlying platform (1) is vertically arranged in
Two short support columns at the surface rear end two corners of upside, two root longs being vertically arranged at the two corners of underlying platform (1) upper side front end
Support column, and the counterweight fixed platform composition of setting surface rear end on the upside of underlying platform (1).
3. a kind of floor edge construction operation platform according to claim 2, it is characterised in that: excessive layer is main in described
By middle layer platform (2), and be vertically arranged the middle layer support bar group of platform (2) upper side forward end in middle level at；In affiliated
The downside surface rear end two corners of layer platform (2) are erected at the top of short support column, the middle layer platform (2) drawn money on credit strut run through and in
Layer platform (2) strut of being drawn money on credit is bolted at the position with the strut of drawing money on credit.
4. a kind of floor edge construction operation platform according to claim 3, it is characterised in that: the middle layer platform (2)
Width it is identical as underlying platform (1), the length of the middle layer platform (2) is slightly longer than underlying platform (1), and the middle layer platform (2)
Length less than 5/4 underlying platform (1) length.
5. a kind of floor edge construction operation platform according to claim 4, it is characterised in that: the counterweight fixed platform
By the counterweight cabinet (5) with door being fixed on underlying platform (1), the hydraulic cylinder internal in counterweight cabinet (5) is set, is vertically arranged in
Counterweight cabinet (5) upper side central location and the upper hydraulic stem (6) through middle layer platform (2) is thought downward through counterweight cabinet (5), and
Fixing head (7) composition on hydraulic stem (6) top is set；The hydraulic stem (6) and hydraulic cylinder pass through piping connection.
6. a kind of floor edge construction operation platform according to claim 5, it is characterised in that: the upside of the fixing head
Face is provided with several metal nails or rubber pad.
7. a kind of floor edge construction operation platform according to claim 6, it is characterised in that: the constructing operation layer by
Operating platform (3), and it is circumferentially positioned at guardrail (10) composition of operating platform (3) upper side front end, left end and right end.
8. a kind of floor edge construction operation platform according to claim 7, it is characterised in that: the operating platform (3)
Left and right sides front end be respectively arranged with one piece of main bearing diagonal beam (11), the bottom end of two pieces of main bearing diagonal beams (11) is separately fixed at
Center position at left and right sides of underlying platform (1)；The left and right sides front end of the middle layer platform (2) is respectively arranged with one piece downwards
Inclined sub- bearing diagonal beam (12), the bottom end of two pieces of bearing diagonal beams (12) is separately fixed on two root long support columns.
9. a kind of floor edge construction operation platform according to claim 8, it is characterised in that: the underlying platform (1)
The left and right ends of leading flank are respectively forwardly provided with a horizontal additional reinforcement horizontal block (14), in additional reinforcement horizontal block (14)
Front end is additionally provided with an additional reinforcement skewback (13), one end and additional reinforcement horizontal block (14) phase of the additional reinforcement skewback (13)
Connection, the other end are connected with strut of drawing money on credit.
10. a kind of floor edge construction operation platform according to claim 9, it is characterised in that: the bottom ladder (8)
Quantity is two, is separately positioned on the left and right sides of underlying platform (1), and fixed platform (2) in middle level in upper end of bottom ladder (8)
Upper and lower end is fixed on underlying platform (1)；The upper end of affiliated top ladder (9) is fixed on operating platform (3) upper and lower end and is fixed on
On middle layer platform (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910653508.4A CN110528847A (en) | 2019-07-19 | 2019-07-19 | Floor edge construction operation platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910653508.4A CN110528847A (en) | 2019-07-19 | 2019-07-19 | Floor edge construction operation platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110528847A true CN110528847A (en) | 2019-12-03 |
Family
ID=68660344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910653508.4A Pending CN110528847A (en) | 2019-07-19 | 2019-07-19 | Floor edge construction operation platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110528847A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809849A (en) * | 2020-08-18 | 2020-10-23 | 浙江中南建设集团钢结构有限公司 | Auxiliary operation platform for installing peripheral guard plate of ventilation clerestory and using method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733586A (en) * | 2012-06-06 | 2012-10-17 | 苏州金螳螂幕墙有限公司 | Scaffold cart |
| CN206158136U (en) * | 2016-11-01 | 2017-05-10 | 中建八局第一建设有限公司 | But decorate facade construction mobile scaffold |
| CN206368527U (en) * | 2016-12-09 | 2017-08-01 | 中建五局装饰幕墙有限公司 | Operating platform and operation platform system |
| CN207920038U (en) * | 2017-11-23 | 2018-09-28 | 中建一局集团第五建筑有限公司 | Overhanging type mobile operation platform |
| CN208220149U (en) * | 2018-03-30 | 2018-12-11 | 中国建筑一局(集团)有限公司 | Detachable double-layer air-facing operation platform |
| CN208518295U (en) * | 2018-05-02 | 2019-02-19 | 中国建筑第八工程局有限公司 | One kind being used for Super High assembled overhanging apparatus for work |
-
2019
- 2019-07-19 CN CN201910653508.4A patent/CN110528847A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733586A (en) * | 2012-06-06 | 2012-10-17 | 苏州金螳螂幕墙有限公司 | Scaffold cart |
| CN206158136U (en) * | 2016-11-01 | 2017-05-10 | 中建八局第一建设有限公司 | But decorate facade construction mobile scaffold |
| CN206368527U (en) * | 2016-12-09 | 2017-08-01 | 中建五局装饰幕墙有限公司 | Operating platform and operation platform system |
| CN207920038U (en) * | 2017-11-23 | 2018-09-28 | 中建一局集团第五建筑有限公司 | Overhanging type mobile operation platform |
| CN208220149U (en) * | 2018-03-30 | 2018-12-11 | 中国建筑一局(集团)有限公司 | Detachable double-layer air-facing operation platform |
| CN208518295U (en) * | 2018-05-02 | 2019-02-19 | 中国建筑第八工程局有限公司 | One kind being used for Super High assembled overhanging apparatus for work |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809849A (en) * | 2020-08-18 | 2020-10-23 | 浙江中南建设集团钢结构有限公司 | Auxiliary operation platform for installing peripheral guard plate of ventilation clerestory and using method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20191203 |