CN212224698U - A instrument formula sunshade weather enclosure for construction - Google Patents

A instrument formula sunshade weather enclosure for construction Download PDF

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Publication number
CN212224698U
CN212224698U CN202020595050.XU CN202020595050U CN212224698U CN 212224698 U CN212224698 U CN 212224698U CN 202020595050 U CN202020595050 U CN 202020595050U CN 212224698 U CN212224698 U CN 212224698U
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CN
China
Prior art keywords
sunshade
construction
tool type
building construction
construction according
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202020595050.XU
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Chinese (zh)
Inventor
周乔明
夏友辉
高瑞
宋元宝
魏雄雄
陈荣
陈文杰
朱广鳌
龙美睿
王薇焱
周治康
金大森
普通
刘俊成
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Yunnan Urban & Rural Construction Investment Co ltd
Yunnan Construction and Investment Holding Group Co Ltd
Original Assignee
Yunnan Urban & Rural Construction Investment Co ltd
Yunnan Construction and Investment Holding Group Co Ltd
Priority date (The priority date 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 date listed.)
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Application filed by Yunnan Urban & Rural Construction Investment Co ltd, Yunnan Construction and Investment Holding Group Co Ltd filed Critical Yunnan Urban & Rural Construction Investment Co ltd
Priority to CN202020595050.XU priority Critical patent/CN212224698U/en
Application granted granted Critical
Publication of CN212224698U publication Critical patent/CN212224698U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an instrument formula sunshade weather enclosure for construction, including being mutual disposition support post (1) and setting up in supporting beam (2) and scalable canopy (3) between two support post (1), scalable canopy (3) are installed in the both sides of supporting beam (2) through installation axle (4) symmetry, constitute sunshade weather enclosure main part, and this sunshade weather enclosure main part props (5) fixed stay through collapsible U word, forms folded cascade or telescopic sunshade weather enclosure. The utility model discloses a shelter from in case drenching with rain to the concrete of having just built to reach the purpose of ensureing the concrete quality, still guaranteed simultaneously that constructor does not receive insolate and drench with rain, reach protection constructor's health and do not receive the injury, have simple, practical, convenient, the structure is simple and easy, the practicality is strong and the advantage such as efficiency of construction height.

Description

A instrument formula sunshade weather enclosure for construction
Technical Field
The utility model relates to an instrument formula sunshade weather enclosure, it is specific relate to an instrument formula sunshade weather enclosure for construction for the sunshade rain-proof in the construction process, apply to the project that the time limit for a project is tight above all, the rainy day must be under construction and an interim sunshade weather enclosure of ensureing concrete placement and maintenance quality who takes belongs to construction auxiliary articles for use technical field.
Background
Generally speaking, in current residential construction, especially in a remote poverty-relief relocation project, due to tight construction period and heavy tasks, the project belongs to civil engineering, the government has strict requirements on the construction period, the time in rainy season is longer in partial areas, in order to ensure the completion of the construction period according to the requirements of owners, rainy day construction is inevitably carried out, and the quality of concrete in the rainy day construction cannot be ensured, so that the project quality is ensured while the construction period requirements are met.
Because some construction projects are in Fugong county of the Rong river, are close to the Rong river, the two sides of the great canyon of the Rong river are in three-dimensional climate, the sunshine is abundant, the rainfall is abundant, bring great challenge to the remote poverty-relieving relocation project, every technical measure of the construction in rainy season at present can not improve the operating environment for the front-line operating personnel well, when the construction is carried out in rainy season, the workers are exposed to rain for construction, the serious cold and fever are caused, and the unfavorable situation of 'rush to one day and have a rest for three days' is caused by the faking of the workers. When the sun is sunny, the direct solar radiation temperature reaches 36 ℃, which is not beneficial to heavy physical labor outdoors. The two conditions appear alternately, and the construction degradation effect is particularly serious.
Meanwhile, from the analysis of the climate environment of the place of the project, the place enters the rainy season from 5 months to 9 months every year, and the project enters the main construction stage in the period, so that how to improve the operation condition of a first-line worker is important. At present comparatively general to a ray of operation workman's rain-proof safeguard measure is the dress raincoat, but traditional raincoat has two obvious drawbacks: on one hand, the raincoat is airtight, is more obvious for operators engaged in heavy physical labor at the same line, is stuffy and hot, and is often taken off after heavy work, and the raincoat is muddy and is thoroughly wetted by sweat; on the other hand, the raincoat is bulky and inconvenient to move.
Therefore, the key point for solving the technical problems is to develop a tool type sunshade and rainproof shed for building construction with strong practicability and high working reliability.
Disclosure of Invention
To a great deal of defect and not enough that exist among the above-mentioned background art, the utility model discloses improve and the innovation to this, aim at provides that a structure is simple and easy, the practicality is strong and the high concrete that has just been pour is sheltered from in case drenching from to the concrete that has just been pour to the instrument formula sunshade weather enclosure that is used for building construction that the efficiency of construction is high to reach the purpose of ensureing the concrete quality, ensure that engineering project can normally impel and not influence construction quality in the project that the tight task of time limit for a project is heavy.
The utility model discloses another invention aim at realize easy operation, practical, convenient, swift, the equipment of being convenient for dismantle, also guarantee to be under construction not influenced by weather when furthest's assurance constructor's is healthy to also guarantee the quality of construction when realizing furthest's improvement efficiency of construction.
In order to solve the above problems and achieve the above objects, the present invention provides a tool type sunshade rain-proof shed for building construction, which is realized by adopting the following design structure and the following technical scheme:
as the utility model relates to an instrument formula sunshade weather enclosure's improvement for construction, including being mutual disposition support post (1) and setting up in supporting beam (2) and scalable canopy (3) between two support posts (1), scalable canopy (3) are installed in the both sides of supporting beam (2) through installation axle (4) symmetry, constitute sunshade weather enclosure main part, and this sunshade weather enclosure main part props (5) fixed stay through collapsible U word, forms folded cascade or telescopic sunshade weather enclosure.
As the utility model discloses foretell improvement, support post (1) is the square steel, is provided with fixing base (11) in the bottom of this square steel, is fixed connection between fixing base (11) and support post (1).
As the above further improvement of the present invention, the four corners of the fixing base (11) are provided with fixing holes (111), the fixing holes (111) are bolt holes, and the bolt holes penetrate through the front and back surfaces of the fixing base (11).
As the above further improvement of the utility model, the supporting beam (2) is made of square steel, and the square steel and the mounting shaft (4) are arranged in parallel; the telescopic canopy (3) is made of plastic canvas made of waterproof materials.
As the utility model discloses foretell further improvement again, installation axle (4) are fixed axle or movable rotating shaft, wherein, extend in movable rotating shaft and be equipped with crank (41), and crank (41) coaxial setting all sets up in the one end or both ends of installation axle (4).
In the above-mentioned further improvement of the present invention, the crank (41) has a structure of ﹂ -shape or L-shape, and the outer surface of the crank (41) is further provided with rubber anti-slip protrusions.
As the utility model discloses foretell still further improvement, collapsible U word props the one end of (5) and articulates the mount pad of connecting support post (1) lateral part, scalable canopy (3) is connected to the other end that collapsible U word propped (5).
As the utility model discloses foretell still further improvement again, still be provided with between support post (1) and collapsible U word props (5) and strengthen bracing (6), strengthen bracing (6) one end and articulate and connect support post (1), but other end articulates and connects collapsible U word and prop (5).
As the utility model discloses the foretell still further improvement again, this instrument formula sunshade weather enclosure is still including annular lug (7) that are provided with the symmetry, and two lugs (7) are fixed respectively and are set up in the top of two support posts (1).
As the utility model discloses the foretell still further improvement more, all from interior to outer according to the preface spraying have the layer of moulding plastics and antirust coat and warning layer on the surface that support post (1), supporting beam (2), scalable canopy (3) and installation axle (4) and collapsible U word propped (5), scribble phosphor powder on the warning layer.
The working principle is as follows: before the tool type sunshade and rainproof shed with the design structure for building construction is used, the manufactured tool type sunshade and rainproof shed needs to be installed for standby.
Before the installation, constructor only will the utility model discloses an artifical or handling equipment is installed its transport to appointed construction position, need consider in advance simultaneously and reserve the operating space height, and support post (1) height 7 meters is arranged in on the construction face, guarantees 3 to 3.5 meters vertical distance at the operation layer assurance of construction template, reinforcing bar to but protect scalable canopy (3) eaves mouth minimum distance to can install.
During the installation, at first carry out the unwrapping wire at the face of pouring the completion, when formwork support sets up, according to the utility model discloses the position that the plane layout picture is shown to be left support post (1) lower extreme fixing base (11), then, set up at formwork support and finish the back hoist and mount, the utility model discloses, and can coaxial line side by side the installation arrange a plurality ofly as required, and adopt spacing rope or adopt steel pipe fastener etc. to connect as a whole between two adjacent instrument formula sunshade weather enclosure, and make it have stability, constructor is manual with scalable canopy (3) at top or through hand crank (41) that clockwise set up in installation axle (4) one end simultaneously, thereby realize releasing scalable canopy (3) from installation axle (4) and stretch out the outside and carry out the sunshade rain, the top uses wood wedge or fills the clearance between two adjacent scalable canopy (3) and connects it to fill and connect simultaneously And fixing, wherein the bottom of the fixing seat is fixed with a construction board surface or the ground by adopting high-strength bolts to penetrate through fixing holes (111) arranged at four corners of the fixing seat (11), and then, constructors can perform corresponding concrete pouring construction operation.
After the construction operation of this section is accomplished, when needs move the next layer and use, constructor only need through manual drawing in or through anticlockwise hand crank (41) that set up in installation axle (4) one end, thereby realize winding scalable canopy (3) ring circle on installation axle (4), thereby accomplish the folded cascade of scalable canopy (3) draw in or manual telescopic drawing in, carry it to the above-mentioned operation of next section construction point repetition once more afterwards, accomplish until whole construction operation.
Finally, along with the time lapse, after all construction operations were accomplished, constructor drawn in scalable canopy (3) once more to demolish the high strength bolt in bottom fixed orifices (111) respectively, then will the utility model discloses an it is artifical or through taking to hang to clear up its handling to appointed position and restore the back and carry it to appointed instrument storage warehouse and save, use in order to circulate to have enough to meet the need next time.
Compared with the prior art, the utility model produced beneficial effect is:
1. the utility model relates to a simple structure, the dismouting is nimble, firm in connection, and repetitious usage can reduce construction cost, has realized instrumentization, regularization and standardized construction, improves a ray of workman's construction environment, and the sunshade weather enclosure of this structure can contract fast again when the tower crane transports materials such as reinforcing bar, template, steel pipe to the floor face, vacates the space, and the target is accomplished: the utility model has the advantages of practicality, simple structure, low cost and high turnover efficiency;
2. the utility model realizes the purpose of shielding the concrete which is just poured from rain so as to ensure the quality of the concrete, simultaneously ensures that constructors are not exposed to the sun and rain, protects the bodies of the constructors from being hurt, and has the advantages of simplicity, practicality, convenience, simple structure, strong practicability, high construction efficiency and the like;
3. the utility model discloses can not only solve the protection to concrete slab when the concrete is poured to the project that the time limit for a project is tight in the rainy day, this weather enclosure ann tears simple, convenient, swift down simultaneously, can recycle repeatedly, can also improve work efficiency, accelerate the construction progress, guarantee construction quality, resources are saved and cost, can finalize the design processing, can have enough to meet the need the use many times simultaneously, connect firm, safe in utilization, convenient, can ensure in the project that the tight task of time limit for a project is heavy that the project can normally impel and not influence construction quality;
4. the utility model has simple, convenient and quick installation, greatly improved construction efficiency, convenient processing, less material investment, turnover use, lower cost, environmental protection, reduced material investment, reduced cost, strong practicability, favorable improvement of construction progress and construction quality and guarantee of the health of constructors;
5. the utility model discloses an anti-rust paint on the outside, consequently also prolonged the life of whole canopy when can preventing to rust, also saved the resource when realizing the environmental protection, simultaneously, scribble the fluorescent material that can self-luminous in the outside of canopy, can clearly mark the position of this canopy in night or darkroom and underground construction environment, can play the effect of safety suggestion effectively.
Drawings
The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:
fig. 1 is one of the overall structural schematic diagrams of the present invention;
figure 2 is a second schematic diagram of the overall structure of the present invention,
figure 3 is a third schematic view of the overall structure of the present invention,
FIG. 4 is a fourth schematic view of the overall structure of the present invention,
FIG. 5 is a fifth schematic view of the overall structure of the present invention;
FIG. 6 is a schematic view of a portion of the position A shown in FIG. 5;
fig. 7 is one of the schematic views of the usage state of the present invention;
fig. 8 is one of schematic usage states of another design structure of the present invention;
FIG. 9 is a schematic view of the overall structure of yet another design structure of the present invention;
fig. 10 is a schematic view of a further embodiment of the present invention in a use state;
FIG. 11 is a schematic view of another embodiment of the present invention showing a usage status;
wherein, the reference numbers in the figures: 1-supporting upright column, 11-fixing seat, 111-fixing hole;
2-supporting the beam;
3, a telescopic canopy;
4-mounting shaft, 41-crank;
5, folding a U-shaped support;
6, reinforcing inclined struts;
7, lifting lugs.
Detailed Description
In order to make the technical means, the inventive features, the objectives and the functions of the present invention easy to understand, the technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description, and it should be noted that the embodiments and the features of the embodiments in the present application can be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The tool type sunshade and rainproof shed for building construction comprises supporting columns 1 which are arranged oppositely, supporting cross beams 2 arranged between the two supporting columns 1 and telescopic rainproof sheds 3, wherein the telescopic rainproof sheds 3 are symmetrically arranged on two sides of the supporting cross beams 2 through mounting shafts 4 to form a sunshade and rainproof shed main body, and the sunshade and rainproof shed main body is fixedly supported through foldable U-shaped supports 5 to form a foldable or telescopic sunshade and rainproof shed.
Further, the supporting upright post 1 is made of square steel, a fixed seat 11 is arranged at the bottom of the square steel, and the fixed seat 11 is fixedly connected with the supporting upright post 1.
Specifically, the four corners of the fixing base 11 are provided with fixing holes 111, the fixing holes 111 are bolt holes, and the bolt holes penetrate through the front and back surfaces of the fixing base 11.
Further, the supporting beam 2 is made of square steel, and the square steel and the mounting shaft 4 are arranged in parallel; the retractable canopy 3 is made of a plastic canvas made of a waterproof material.
Further, installation axle 4 is the fixed axle or the activity pivot, and wherein, the extension is equipped with crank 41 in the activity pivot, and crank 41 sets up in the one end of installation axle 4 or both ends all set up coaxially.
Specifically, the hand lever 41 has an "﹂ -shaped" or "L-shaped" structure, and rubber anti-slip protrusions are further provided on the outer surface of the hand lever 41.
Furthermore, the one end of collapsible U word props 5 articulates the mount pad of connecting support post 1 lateral part, scalable canopy 3 is connected to the other end of collapsible U word props 5.
Furthermore, a reinforced inclined strut 6 is further arranged between the supporting upright post 1 and the foldable U-shaped strut 5, one end of the reinforced inclined strut 6 is hinged to the supporting upright post 1, and the other end of the reinforced inclined strut is hinged to the foldable U-shaped strut 5.
Further, this instrument formula sunshade weather enclosure still is including being provided with symmetrical annular lug 7, and two lugs 7 are fixed respectively and are set up in the top of two support posts 1.
The utility model discloses in, all from interior to outer according to the preface spraying have injection moulding layer and antirust coat and warning layer on the surface of strengthening bracing 6 and lug 7, scribble phosphor powder on the warning layer.
Specifically, a high-molecular wear-resistant material is injected on the injection molding layer; the anti-rust layer comprises epoxy zinc-rich primer, chlorinated rubber finish paint and epoxy mica iron intermediate paint positioned between the epoxy zinc-rich primer and the chlorinated rubber finish paint; the warning layer is a yellow or black reflective warning tape or a reflective color film or reflective paint.
Further, all from interior to exterior spraying according to the preface has injection layer and antirust coat and warning layer on the surface of support post 1, supporting beam 2, scalable canopy 3 and installation axle 4 and collapsible U word prop 5, scribbles phosphor powder on the warning layer.
Specifically, a high-molecular wear-resistant material is injected on the injection molding layer; the anti-rust layer comprises epoxy zinc-rich primer, chlorinated rubber finish paint and epoxy mica iron intermediate paint positioned between the epoxy zinc-rich primer and the chlorinated rubber finish paint; the warning layer is a yellow or black reflective warning tape or a reflective color film or reflective paint.
The utility model discloses in, all the fixed connection and the fixed setting mentioned all be welded connection or directly process as integrated into one piece structure.
To sum up, the utility model discloses more specific embodiment is:
before the tool type sunshade and rainproof shed with the design structure for building construction is used, the manufactured tool type sunshade and rainproof shed needs to be installed for standby.
Before the installation, constructor only needs will the utility model discloses an artifical or handling equipment is installed its transport to appointed construction position, need consider in advance simultaneously and reserve the operating space height, and on the construction face was arranged in to 1 high 7 meters of support post, 3 eaves mouth minimum distances of 3 of scalable canopy were just being under construction template, the operation layer of reinforcing bar guaranteed 3 to 3.5 meters vertical distance to can install.
When in installation, firstly, the poured plate surface is paid off, when the template bracket is erected, the position of the lower end fixing seat 11 of the supporting upright post 1 is reserved according to the plane layout drawing of the utility model, then, the utility model is hoisted after the template bracket is erected, and a plurality of the supporting upright posts can be coaxially arranged in parallel according to the requirement, and two adjacent tool type sunshade and rainproof sheds are connected into a whole by adopting a spacing rope or adopting a steel pipe fastener and the like, and the supporting upright posts have stability, meanwhile, constructors manually or clockwise hand crank 41 arranged at one end of the installation shaft 4 by hand-cranking the telescopic shed 3 at the top, thereby realizing that the telescopic rainproof shed 3 is released from the installation shaft 4 and is stretched out to shade the outside for rain, meanwhile, wood wedges or filled foam or non-woven fabrics are used at the top to fill the gap between the two adjacent telescopic rainproof sheds 3 and connect and fix the same, the bottom of the fixing seat 11 is fixed with a construction panel or the ground by high-strength bolts penetrating through fixing holes 111 arranged at four corners of the fixing seat, and then, constructors can perform corresponding concrete pouring construction operations.
After the construction operation of this section is accomplished, when needs move the next layer and use, constructor only need through manual drawing in or through anticlockwise hand crank 41 that sets up in installation axle 4 one end to the realization coils scalable canopy 3 annular ring on installation axle 4, thereby accomplishes that the folded cascade of scalable canopy 3 draws in or manual telescopic draws in, carries it to the above-mentioned operation of repetition once more of next section construction point afterwards, and until whole construction operation is accomplished.
Finally, along with the time lapse, after all construction operations were accomplished, constructor drawn in scalable canopy 3 once more to demolish the high strength bolt in the bottom fixed orifices 111 respectively, then will the utility model discloses an it is artifical or carry it to appointed instrument storage warehouse to save after clearing up the restoration with its handling to appointed position through taking to hang, in order to circulate the turnover use next time.
The utility model discloses except can be applied to the rainy day or be the road surface that need pour the concrete in hot season or the pouring of spacious position department concrete, can also be used to the gravel cover or use in the processing manufacture process of T roof beam.
It is right above the utility model provides an instrument formula sunshade weather enclosure for construction has carried out detailed introduction, and is right herein the utility model discloses a principle has described, and the explanation of above theory of operation is only used for helping to understand the utility model discloses a core thought. It should be noted that, for those skilled in the art, the present invention can be modified and modified without departing from the principle of the present invention, and the modified and modified embodiments also fall into the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides an instrument formula sunshade weather enclosure for construction, is relative arrangement's support post (1) and sets up supporting beam (2) and scalable canopy (3) between two support posts (1) including each other, its characterized in that: scalable canopy (3) are installed in the both sides of supporting beam (2) through installation axle (4) symmetry, constitute sunshade weather enclosure main part, and this sunshade weather enclosure main part props (5) fixed stay through collapsible U word, forms folded cascade or telescopic sunshade weather enclosure.
2. The tool type sunshade and rainproof shed for building construction according to claim 1, wherein: the supporting upright post (1) is made of square steel, a fixing seat (11) is arranged at the bottom of the square steel, and the fixing seat (11) is fixedly connected with the supporting upright post (1).
3. The tool type sunshade and rainproof shed for building construction according to claim 2, wherein: fixing holes (111) are formed in four corners of the fixing seat (11), the fixing holes (111) are bolt holes, and the bolt holes penetrate through the front face and the back face of the fixing seat (11).
4. The tool type sunshade and rainproof shed for building construction according to claim 1, wherein: the supporting cross beam (2) is made of square steel, and the square steel and the mounting shaft (4) are arranged in parallel; the telescopic canopy (3) is made of plastic canvas made of waterproof materials.
5. The tool type sunshade and rainproof shed for building construction according to claim 1, wherein: installation axle (4) are the fixed axle or the activity pivot, wherein, extend in the activity pivot and be equipped with crank (41), and crank (41) coaxial setting all sets up in the one end or both ends of installation axle (4).
6. A tool type sunshade and rainproof shed for building construction according to claim 5, wherein: the hand crank (41) is in a ﹂ -shaped or L-shaped structure, and rubber anti-skid protrusions are further arranged on the outer surface of the hand crank (41).
7. The tool type sunshade and rainproof shed for building construction according to claim 1, wherein: the one end of collapsible U word props (5) articulates the mount pad of connecting support stand (1) lateral part, scalable canopy (3) are connected to the other end that collapsible U word propped (5).
8. The tool type sunshade and rainproof shed for building construction according to claim 1, wherein: a reinforced inclined strut (6) is further arranged between the supporting upright post (1) and the foldable U-shaped strut (5), one end of the reinforced inclined strut (6) is hinged with the supporting upright post (1), and the other end of the reinforced inclined strut is hinged with the foldable U-shaped strut (5).
9. The tool type sunshade and rainproof shed for building construction according to claim 1, wherein: the tool type sun-shading and rain-proof shed further comprises symmetrical annular lifting lugs (7), and the two lifting lugs (7) are fixedly arranged at the tops of the two supporting upright posts (1) respectively.
10. The tool type sunshade and rainproof shed for building construction according to claim 1, wherein: all from interior to exterior according to the preface spraying have injection moulding layer and antirust coat and warning layer on the surface of support post (1), supporting beam (2), scalable canopy (3) and installation axle (4) and collapsible U word prop (5), scribble phosphor powder on the warning layer.
CN202020595050.XU 2020-04-20 2020-04-20 A instrument formula sunshade weather enclosure for construction Expired - Fee Related CN212224698U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020595050.XU CN212224698U (en) 2020-04-20 2020-04-20 A instrument formula sunshade weather enclosure for construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020595050.XU CN212224698U (en) 2020-04-20 2020-04-20 A instrument formula sunshade weather enclosure for construction

Publications (1)

Publication Number Publication Date
CN212224698U true CN212224698U (en) 2020-12-25

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ID=73907910

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114876276A (en) * 2022-03-29 2022-08-09 中国铁建重工集团股份有限公司 Awning working device
CN115012723A (en) * 2022-06-22 2022-09-06 中建五局华东建设有限公司 Portable solar protection devices in building site

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114876276A (en) * 2022-03-29 2022-08-09 中国铁建重工集团股份有限公司 Awning working device
CN114876276B (en) * 2022-03-29 2023-11-14 中国铁建重工集团股份有限公司 Backdrop working device
CN115012723A (en) * 2022-06-22 2022-09-06 中建五局华东建设有限公司 Portable solar protection devices in building site
CN115012723B (en) * 2022-06-22 2023-08-08 中建五局华东建设有限公司 Portable sunshade device for construction site

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