阅读说明：本技术 一种便于组合拆装的悬挑单元式脚手架 (Overhanging unit type scaffold convenient to assemble and disassemble ) 是由 邱行 龙贻周 王海棚 伍晓波 杨敏 于 2021-06-30 设计创作，主要内容包括：本发明公开了一种便于组合拆装的悬挑单元式脚手架,包括以下所述步骤:步骤一、选择基本参数；步骤二、屋顶悬挑梁、配重安装；步骤三、单元组装；步骤四、第一单元吊装；步骤五、第二单元拼装固定；步骤六、其他单元依次拼装固定；步骤七、从下至上进行横向、纵向钢管搭设；步骤八、挂设水平安全网及密目安全网；步骤九、作业层满铺木脚手板；步骤十、验收；步骤十一、拆除。本发明通过底部横杆、底部纵杆、立杆、顶部纵杆、顶部横杆和脚手板的设置,工作人员可通过以上结构快速搭建出一个单元吊装,再次通过组装多个单元吊装,从而可根据要求快速搭建出脚手架,进而防止了人工逐个搭建造成的费时费力,继而加快了工作速度。(The invention discloses an overhanging unit type scaffold convenient for combined assembly and disassembly, which comprises the following steps of selecting basic parameters; secondly, mounting a roof cantilever beam and a balance weight; step three, assembling the units; step four, hoisting the first unit; step five, the second unit is assembled and fixed; step six, other units are sequentially assembled and fixed; seventhly, erecting transverse and longitudinal steel pipes from bottom to top; step eight, hanging a horizontal safety net and a dense mesh safety net; step nine, fully paving the wooden scaffold boards on the operation layer; step ten, acceptance inspection; and eleventh, dismantling. According to the scaffold, through the arrangement of the bottom cross rods, the bottom longitudinal rods, the vertical rods, the top longitudinal rods, the top cross rods and the scaffold boards, a worker can quickly build one unit hoist through the structure and can quickly build the scaffold according to requirements through assembling a plurality of unit hoists, so that time and labor are prevented from being wasted due to manual one-by-one building, and the working speed is increased.)

1. The utility model provides a unit formula scaffold frame encorbelments convenient to combination dismouting which characterized in that: the method comprises the following steps:

step one, selecting basic parameters;

secondly, mounting a roof cantilever beam and a balance weight;

step three, assembling the units;

step four, hoisting the first unit;

step five, the second unit is assembled and fixed;

step six, other units are sequentially assembled and fixed;

seventhly, erecting transverse and longitudinal steel pipes from bottom to top;

step eight, hanging a horizontal safety net and a dense mesh safety net;

step nine, fully paving the wooden scaffold boards on the operation layer;

step ten, acceptance inspection;

and eleventh, dismantling.

2. The overhanging unit scaffold convenient for combined assembly and disassembly according to claim 1, wherein: in the first step: the width D1(D2) of the scaffold is 0.5m-0.8 m; the distance D3 between the inner vertical rod and the outer wall is 0.2m-0.3 m; the step pitch is equally divided according to the set height, and the general step pitch S is 0.8m-1.5 m; considering that the longest length of the steel pipe is 6m, the lap joint in the JGJ 130-plus 2011 specification is not less than 1m, and the vertical rod longitudinal distance, the cantilever beam and the steel wire rope distance L are generally 2m-2.5 m; the safety net is a green flame-retardant dense-mesh safety net (2300 meshes/100 cm2), the horizontal safety net is 80mm × 80mm in mesh, and the scaffold board is a wooden scaffold board with a thickness of 50 mm.

3. The overhanging unit scaffold convenient for combined assembly and disassembly according to claim 1, wherein: in the second step: carrying the scaffold in place; for the project using the hanging basket for construction operation, the hanging rod and the balance weight are reserved after the hanging basket is dismantled, and the hanging basket can be directly used as a cantilever beam; for projects which do not use hanging baskets, carrying the cantilever beams and the balance weights to an installation platform on the top floor surface by using a tower crane; positioning a cantilever beam; according to the determined basic parameters, one end of the cantilever beam extends out of the parapet wall, and the other end of the cantilever beam is arranged at a position where the cantilever beam does not conflict with other cantilever beams and keeps a certain operating distance; placing a balancing weight; and respectively placing the balancing weights on the supporting rods of the rear support of the cantilever beam, and installing bolts.

4. The overhanging unit scaffold convenient for combined assembly and disassembly according to claim 1, wherein: in the third step: bottom vertical pole (2) are installed at the both ends of bottom horizontal pole (1), the surface mounting of bottom vertical pole (2) has pole setting (3), top vertical pole (4) are installed on the top of pole setting (3), top horizontal pole (5) are installed to the bottom of top vertical pole (4), the surface mounting of bottom horizontal pole (1) has scaffold board (6).

5. The overhanging unit scaffold convenient for combined assembly and disassembly according to claim 1, wherein: in the fourth step: hoisting to the corner position of the roof, fixing the cross bar at the top of the unit with a parapet, and respectively installing a short upright post at two sides of the parapet to be connected and fixed with the top longitudinal bar of the unit; a batten is arranged at one end of the intersection of the transverse steel pipe at the bottom of the unit and the sloping roof; the bottom of the unit is fixed by a steel wire rope and a clamp, the other end of the steel wire rope penetrates through a reserved hole of the parapet wall, and the steel wire rope and the clamp are locked and fixed on the parapet wall; the nuts and the steel wire rope clips are fixed, the tower crane hook can be loosened after the unit installation is finished, and the unit can be used after the folding lattice is empirically completed after the unit installation is finished.

6. The overhanging unit scaffold convenient for combined assembly and disassembly according to claim 1, wherein: in the fifth step: the end part of the inner side longitudinal rod of the second unit hoist (8) is transversely aligned with the end part of the outer side longitudinal rod of the first unit; the tower crane slowly moves the second unit hoist (8) to the inner side until the second unit hoist (8) is level with the first unit; then, slowly moving the second unit hoist (8) to the first unit by using a tower crane until the lap joint length is 1m, fastening a safety belt by an operator after the second unit hoist (8) reaches the final position, standing on the first unit, and lap-jointing the extension steel pipe of the second unit hoist (8) with the first unit by using a fastener; meanwhile, the top cross rod and the bottom steel wire rope are fixedly connected.

7. The overhanging unit scaffold convenient for combined assembly and disassembly according to claim 1, wherein: in the sixth step: the units are erected with transverse and longitudinal steel pipes from bottom to top and are connected and fixed with the unit frame body steel pipes by fasteners; the bottom of the unit and the operation layer are fully paved with wooden scaffold boards, two ends of each wooden scaffold board are bound and fixed on the steel pipe through iron wires (7), dense mesh safety nets and protective nets are hung, and the wooden scaffold boards are bound and fixed on the steel pipe through the iron wires (7).

8. The overhanging unit scaffold convenient for combined assembly and disassembly according to claim 1, wherein: in the eleventh step:

(1) removing the dense mesh safety net and the protective net;

(2) dismantling the steel wire rope;

(3) connecting the units after dismantling;

(4) hoisting and transporting all the units to the horizontal ground integrally in sequence by using a tower crane;

(5) dismantling a flat roof cantilever beam and a balance weight;

(6) dismantling the wooden scaffold board;

(7) disassembling the top cross bar;

(8) disassembling the bottom cross bar;

(9) and (6) dismantling the vertical rod.

Technical Field

The invention relates to the technical field of scaffolds, in particular to an overhanging unit type scaffold convenient to assemble, disassemble and assemble.

Background

With the rapid development of the economy of China, the living standard of people is continuously improved, and the requirements on the living environment are higher and higher. The roof loft can improve the living environment of a top layer, improve the space utilization rate, enrich the building vertical surface, insulate heat and preserve heat, and is more and more suitable for the increasing demand of the residential building market, so the roof loft is widely applied to newly-built multi-storey or high-rise houses, however, a plurality of problems are frequently encountered in the construction process of the loft pitched roof, for example, after the construction of a main structure is completed, a scaffold is immediately removed, so that no operation platform and safety enclosure are arranged around the pitched roof, and great difficulty is brought to the construction of the pitched roof. Therefore, the problems of no operating platform and safety enclosure in the loft sloping roof in the construction process are solved by carrying out technical attack and repeated research and improvement. Through practice and summary, a set of complete loft sloping roof overhanging unit type scaffold construction technology is formed, reference is provided for similar engineering and loft sloping roof later-stage maintenance construction in future, and the method has wide popularization and application prospects.

Among the prior art one kind encorbelment unit formula scaffold shortcoming not enough:

1. when the cantilever unit type scaffold in the prior art is used, most of the cantilever unit type scaffolds are constructed one by one manually, so that time and labor are wasted during actual use, and the construction speed is slow, so that the working efficiency is reduced;

2. when the overhanging unit type scaffold in the prior art is used, most materials need to be modified and spliced on site, so that resource waste is easily caused, and the building speed is low;

3. among the prior art a unit formula scaffold frame of encorbelmenting is difficult to dismantle fast mostly when using, needs the manual work to demolish one by one to influence work efficiency.

Disclosure of Invention

The invention aims to provide an overhanging unit type scaffold convenient to assemble and disassemble so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme that the overhanging unit type scaffold convenient to assemble, disassemble and assemble comprises the following steps:

step one, selecting basic parameters;

secondly, mounting a roof cantilever beam and a balance weight;

step three, assembling the units;

step four, hoisting the first unit;

step five, the second unit is assembled and fixed;

step six, other units are sequentially assembled and fixed;

seventhly, erecting transverse and longitudinal steel pipes from bottom to top;

step eight, hanging a horizontal safety net and a dense mesh safety net;

step nine, fully paving the wooden scaffold boards on the operation layer;

step ten, acceptance inspection;

and eleventh, dismantling.

Preferably, in the first step: the width D1(D2) of the scaffold is 0.5m-0.8 m; the distance D3 between the inner vertical rod and the outer wall is 0.2m-0.3 m; the step pitch is equally divided according to the set height, and the general step pitch S is 0.8m-1.5 m; considering that the longest length of the steel pipe is 6m, the lap joint in the JGJ 130-plus 2011 specification is not less than 1m, and the vertical rod longitudinal distance, the cantilever beam and the steel wire rope distance L are generally 2m-2.5 m; the safety net is a green flame-retardant dense-mesh safety net (2300 meshes/100 cm2), the horizontal safety net is 80mm × 80mm in mesh, and the scaffold board is a wooden scaffold board with a thickness of 50 mm.

Preferably, in the second step: carrying the scaffold in place; for the project using the hanging basket for construction operation, the hanging rod and the balance weight are reserved after the hanging basket is dismantled, and the hanging basket can be directly used as a cantilever beam; for projects which do not use hanging baskets, carrying the cantilever beams and the balance weights to an installation platform on the top floor surface by using a tower crane; positioning a cantilever beam; according to the determined basic parameters, one end of the cantilever beam extends out of the parapet wall, and the other end of the cantilever beam is arranged at a position where the cantilever beam does not conflict with other cantilever beams and keeps a certain operating distance; placing a balancing weight; and respectively placing the balancing weights on the supporting rods of the rear support of the cantilever beam, and installing bolts.

Preferably, in the third step: bottom vertical pole (2) are installed at the both ends of bottom horizontal pole (1), the surface mounting of bottom vertical pole (2) has pole setting (3), top vertical pole (4) are installed on the top of pole setting (3), top horizontal pole (5) are installed to the bottom of top vertical pole (4), the surface mounting of bottom horizontal pole (1) has scaffold board (6).

Preferably, in the fourth step: hoisting to the corner position of the roof, fixing the cross bar at the top of the unit with a parapet, and respectively installing a short upright post at two sides of the parapet to be connected and fixed with the top longitudinal bar of the unit; a batten is arranged at one end of the intersection of the transverse steel pipe at the bottom of the unit and the sloping roof; the bottom of the unit is fixed by a steel wire rope and a clamp, the other end of the steel wire rope penetrates through a reserved hole of the parapet wall, and the steel wire rope and the clamp are locked and fixed on the parapet wall; the nuts and the steel wire rope clips are fixed, the tower crane hook can be loosened after the unit installation is finished, and the unit can be used after the folding lattice is empirically completed after the unit installation is finished.

Preferably, in the fifth step: the end part of the inner side longitudinal rod of the second unit hoist (8) is transversely aligned with the end part of the outer side longitudinal rod of the first unit; the tower crane slowly moves the second unit hoist (8) to the inner side until the second unit hoist (8) is level with the first unit; then, slowly moving the second unit hoist (8) to the first unit by using a tower crane until the lap joint length is 1m, fastening a safety belt by an operator after the second unit hoist (8) reaches the final position, standing on the first unit, and lap-jointing the extension steel pipe of the second unit hoist (8) with the first unit by using a fastener; meanwhile, the top cross rod and the bottom steel wire rope are fixedly connected.

Preferably, in the sixth step: the units are erected with transverse and longitudinal steel pipes from bottom to top and are connected and fixed with the unit frame body steel pipes by fasteners; the bottom of the unit and the operation layer are fully paved with wooden scaffold boards, two ends of each wooden scaffold board are bound and fixed on the steel pipe through iron wires (7), dense mesh safety nets and protective nets are hung, and the wooden scaffold boards are bound and fixed on the steel pipe through the iron wires (7).

Preferably, in the step eleven:

(1) removing the dense mesh safety net and the protective net;

(2) dismantling the steel wire rope;

(3) connecting the units after dismantling;

(4) hoisting and transporting all the units to the horizontal ground integrally in sequence by using a tower crane;

(5) dismantling a flat roof cantilever beam and a balance weight;

(6) dismantling the wooden scaffold board;

(7) disassembling the top cross bar;

(8) disassembling the bottom cross bar;

(9) and (6) dismantling the vertical rod.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the scaffold, through the arrangement of the bottom cross rods, the bottom longitudinal rods, the vertical rods, the top longitudinal rods, the top cross rods and the scaffold boards, a worker can quickly build one unit hoist through the structure and can quickly build the scaffold according to requirements through assembling a plurality of unit hoists, so that time and labor are prevented from being wasted due to manual one-by-one building, and the working speed is increased.

2. According to the invention, the tower crane can more quickly assemble the placing boxes of the scaffold by utilizing the existing equipment on site, so that the limitations caused by local material taking, refitting and assembling are avoided, and the working efficiency is further improved.

3. According to the invention, through the arrangement of the iron wires, workers can quickly install the scaffold by screwing the iron wires, and can quickly disassemble the scaffold by unscrewing the iron wires, so that the unit hoisting can be quickly disassembled, the influence on the working efficiency caused by one-by-one disassembly is avoided, and the working speed is greatly increased.

Drawings

FIG. 1 is a perspective view of a bottom rail construction of the present invention;

FIG. 2 is a schematic view of a second unit hoisting connection structure of the present invention;

FIG. 3 is a schematic view of the assembly process of the present invention;

fig. 4 is a schematic diagram of the demolition procedure of the present invention.

In the figure: 1. a bottom cross bar; 2. a bottom longitudinal bar; 3. erecting a rod; 4. a top longitudinal bar; 5. a top cross bar; 6. a scaffold board; 7. iron wires; 8. hoisting the second unit; .

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "mounted," and the like are to be construed broadly, e.g., "mounted," which may be fixedly mounted, detachably mounted, or integrally mounted; the installation can be mechanical installation or electrical installation; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, in an embodiment of the present invention, an overhanging unit scaffold convenient for assembly and disassembly includes the following steps:

step one, selecting basic parameters;

secondly, mounting a roof cantilever beam and a balance weight;

step three, assembling the units;

step four, hoisting the first unit;

step five, the second unit is assembled and fixed;

step six, other units are sequentially assembled and fixed;

seventhly, erecting transverse and longitudinal steel pipes from bottom to top;

step eight, hanging a horizontal safety net and a dense mesh safety net;

step nine, fully paving the wooden scaffold boards on the operation layer;

step ten, acceptance inspection;

and eleventh, dismantling.

In the first step: the width D1(D2) of the scaffold is 0.5m-0.8 m; the distance D3 between the inner vertical rod and the outer wall is 0.2m-0.3 m; the step pitch is equally divided according to the set height, and the general step pitch S is 0.8m-1.5 m; considering that the longest length of the steel pipe is 6m, the lap joint in the JGJ 130-plus 2011 specification is not less than 1m, and the vertical rod longitudinal distance, the cantilever beam and the steel wire rope distance L are generally 2m-2.5 m; the safety net is a green flame-retardant dense-mesh safety net (2300 meshes/100 cm2), the horizontal safety net is 80mm multiplied by 80mm in mesh, the scaffold board is a wood scaffold board with the thickness of 50mm, and the step two is as follows: carrying the scaffold in place; for the project using the hanging basket for construction operation, the hanging rod and the balance weight are reserved after the hanging basket is dismantled, and the hanging basket can be directly used as a cantilever beam; for projects which do not use hanging baskets, carrying the cantilever beams and the balance weights to an installation platform on the top floor surface by using a tower crane;

the assembly of the placing boxes of the scaffold can be completed more quickly by utilizing the existing equipment on site, such as a tower crane, so that the limitations caused by local material utilization and refitting and assembly are avoided, and the working efficiency is further improved;

positioning a cantilever beam; according to the determined basic parameters, one end of the cantilever beam extends out of the parapet wall, and the other end of the cantilever beam is arranged at a position where the cantilever beam does not conflict with other cantilever beams and keeps a certain operating distance; placing a balancing weight; respectively placing the balancing weights on the supporting rods of the rear supports of the cantilever beams, and installing bolts in the third step: the two ends of the bottom cross rod (1) are provided with bottom longitudinal rods (2), the surface of each bottom longitudinal rod (2) is provided with a vertical rod (3), the top end of each vertical rod (3) is provided with a top longitudinal rod (4), the bottom end of each top longitudinal rod (4) is provided with a top cross rod (5), and the surface of each bottom cross rod (1) is provided with a scaffold board (6);

through the arrangement of the bottom cross rods 1, the bottom longitudinal rods 2, the vertical rods 3, the top longitudinal rods 4, the top cross rods 5 and the scaffold boards 6, a worker can quickly build a unit hoist through the structure, and can quickly build a scaffold according to requirements by assembling a plurality of unit hoists again, so that time and labor are prevented from being wasted due to manual one-by-one building, and the working speed is increased;

in the fourth step: hoisting to the corner position of the roof, fixing the cross bar at the top of the unit with a parapet, and respectively installing a short upright post at two sides of the parapet to be connected and fixed with the top longitudinal bar of the unit; a batten is arranged at one end of the intersection of the transverse steel pipe at the bottom of the unit and the sloping roof; the bottom of the unit is fixed by a steel wire rope and a clamp, the other end of the steel wire rope penetrates through a reserved hole of the parapet wall, and the steel wire rope and the clamp are locked and fixed on the parapet wall; the nut and the steel wire rope clip are fixed, the tower crane hook can be released after the completion of the unit installation, and the lattice can be used after the unit installation is completed and the lattice is folded, and the step five is as follows: the end part of the inner side longitudinal rod of the second unit hoist (8) is transversely aligned with the end part of the outer side longitudinal rod of the first unit; the tower crane slowly moves the second unit hoist (8) to the inner side until the second unit hoist (8) is level with the first unit; then, slowly moving the second unit hoist (8) to the first unit by using a tower crane until the lap joint length is 1m, fastening a safety belt by an operator after the second unit hoist (8) reaches the final position, standing on the first unit, and lap-jointing the extension steel pipe of the second unit hoist (8) with the first unit by using a fastener; simultaneously, connect top horizontal pole and bottom wire rope fixedly, in step six: the units are erected with transverse and longitudinal steel pipes from bottom to top and are connected and fixed with the unit frame body steel pipes by fasteners; the bottom of the unit and the operation layer are fully paved with wooden scaffold boards, and two ends of each wooden scaffold board are bound on the steel pipes by iron wires (7) and fixed;

through the arrangement of the iron wire 7, workers can quickly install the scaffold by screwing the iron wire, and can quickly disassemble the scaffold by unscrewing the iron wire, so that the unit hoisting can be quickly disassembled, the influence on the working efficiency caused by one-by-one disassembly is avoided, and the working speed is greatly increased;

hanging a dense mesh safety net and a protective net, binding the dense mesh safety net and the protective net on a steel pipe by using an iron wire (7) and fixing, and in the eleventh step:

(1) removing the dense mesh safety net and the protective net;

(2) dismantling the steel wire rope;

(3) connecting the units after dismantling;

(4) hoisting and transporting all the units to the horizontal ground integrally in sequence by using a tower crane;

(5) dismantling a flat roof cantilever beam and a balance weight;

(6) dismantling the wooden scaffold board;

(7) disassembling the top cross bar;

(8) disassembling the bottom cross bar;

(9) and (6) dismantling the vertical rod.

In the invention, the working steps of the device are as follows:

the method is characterized in that square steel or I-steel with enough rigidity is used as a cantilever beam, a parapet is used as a fulcrum, a batten is arranged below the parapet, one end of a flat roof of the cantilever beam is connected with a balance weight, and a unit scaffold is arranged at one end of an inclined roof of the cantilever beam. An included angle of more than or equal to 5 degrees is formed between the cantilever beam and the horizontal plane, so that the scaffold is prevented from sliding outwards; scaffold frame bottom short horizontal pole supports on the pitched roof, the flitch of lower bolster, prevent that the scaffold frame from sliding to the inboard, meanwhile, be connected top horizontal pole and steel pipe for the parapet, the scaffold frame bottom is fixed in on the parapet with the wire rope drawknot, further strengthen the steadiness of scaffold frame, the scaffold frame at first carries out the unit equipment on ground, utilize the tower crane to assemble the unit with every unit on cantilever beam, the unit mount stabilizes the back, at scaffold frame bottom full-spread wooden scaffold board, fix with the steel wire, progressively upward installation scaffold frame level vertical pole again, the horizontal pole, and simultaneously, hang the safety net full in scaffold frame both sides, set up horizontal safety net in the bottom pocket.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.