6m cantilever horizontal protective shed below attached lifting scaffold

Abstract

The utility model relates to a 6m overhanging horizontal protective shed below an attached lifting scaffold, which is characterized in that fastener type steel pipe scaffold rod pieces are used, and the unified model of steel pipes is phi 4.8 mm * 3.5 mm; the lower portion of the protective shed is connected to the shear wall through a screw, and the screw penetrates through a template bolt hole and is fixed through an iron gasket and double nuts. The front-row portion of the protective shed is connected to the shear wall in a pulled mode through a smooth steel wire rope, and the steel wire rope penetrates through a template bolt hole of the shear wall and is clamped through a riding type rope clamp. The longitudinal steel pipes are erected on the cantilever transverse steel pipes, the bamboo basketry pieces are fully laid on the longitudinal steel pipes, and the dense mesh type safety net is laid on the bamboo basketry pieces; the erecting height of the protective handrail is not smaller than 1.2 m, horizontal rods are arranged at the upper end and the middle of the handrail respectively, a dense-mesh safety green net is hung on the inner side, and a foot baffle is arranged at the bottom of the protective handrail. The protective shed is light in weight, high in strength and reusable.

Description

Technical Field

[0001] The utility model relates to a temporary facility attached to a scaffold used in a high-rise building construction project. Background Art

[0002] According to previous construction experience, compared with the integral protective scaffolding, the disadvantage of the attached lifting scaffolding is that the overall protection is poor, which is mainly manifested in the following four aspects: ① The construction gap between the frame and the building. During the lifting process, the bottom cover and interlayer protection need to be temporarily disassembled, which brings hidden dangers to safety protection. ② During the lifting process, if due to mechanical failure, damage to the frame components, poor fixing measures, improper operation and other reasons, it is very easy to cause a major accident of partial or overall overturning of the frame. ③ After the frame climbs, objects on the edges of the facade window openings, balcony openings, and filling wall openings are very easy to fall. ④ During the construction operation after the lifting, the construction gap between the frame and the building is due to the turning of the building shape. The turning surface is mostly a weak part of the wall protection, especially the installation of the outer formwork. During the dismantling, materials and tools such as steel pipes and fasteners are very likely to fall, float, and bounce at the weak parts, causing object impact accidents. The higher the level, the greater the impact, and the greater the harm.

[0003] After the integral protective scaffolding is raised, three horizontal protective sheds are set up around the building at the 10th and 20th floors of the building facade and 6m above the natural ground, so that the vertical distance between the protective sheds is ≤ 30m. A 6m wide combined protective shed is extended outward at a height of 6m above the ground, and the steel pipe is suspended on the main body of the building, and then pulled back on the shear wall with a steel wire rope. Utility Model Content

[0004] The technical problem to be solved by the utility model is: ordinary scaffolding steel pipes, steel wire ropes, steel wire rope clamps, safety nets, bolts, etc. are assembled into a platform, which can meet the requirements of strength, rigidity and integrity, and at the same time is light in weight, can withstand the impact of objects falling from it during construction, and can be reused.

[0005] The technical solution adopted by the utility model to solve the above technical problems is as follows: 1) The protective shed is assembled with fastener-type steel pipe scaffolding rods, and the uniform model of the steel pipe is Φ4.8mm×3.5mm. 2) The lower part of the protective shed is connected to the shear wall, and a Φ14mm screw is passed through the template bolt hole. The outer side of the screw is double-sided welded with a 200mm long horizontal short steel pipe, and the welding length is greater than 5d (d is the screw diameter). The other end of the screw is fixed with an iron gasket and a double nut not less than 80mm×80mm×8mm, and the screw should be exposed to the nut for no less than 3 buckles. 3) The front row of the protective shed is connected to the shear wall with two 6×37Φ17 smooth steel wire ropes. One end of the steel wire rope passes through the template bolt hole of the shear wall, wraps around the steel pipe 2 times, and is clamped with a riding rope clamp. When the steel wire rope passes through the shear wall, a soft cushion is placed underneath to protect the steel wire rope, such as rubber skin, wood board or wooden square. 4) The lower end of the wire rope is wound around the nodes of the longitudinal and transverse steel pipe rods for 3 turns, leaving a rope head ≥1m long (including the safety bend) at the end and clamped with the main pull rope by ≥3 riding clamps, the clamp spacing is 150mm, the safety bend length is ≥500mm, and the number and spacing of the clamps meet the requirements of the specification. 5) The longitudinal steel pipes with a spacing of 300mm are erected on the cantilevered transverse steel pipes with a spacing of 1.5m. The bamboo fences are fully laid on the longitudinal steel pipes. A dense mesh safety net is laid on the bamboo fences, which is tightened, straightened and tied to meet the actual engineering needs. 6) The height of the guardrail is ≥1.2m, and a horizontal bar is set at the top and middle of the railing, with a dense mesh safety green net hung on the inside, and a footboard ≥180mm high is set at the bottom of the guardrail.

[0006] Compared with the prior art, the advantages of the utility model are: it uses ordinary scaffolding steel pipes, steel ropes, wire rope clamps, safety nets, bolts, etc. to assemble into a platform, which can meet the requirements of strength, rigidity and integrity. At the same time, it is light in weight and can be reused, which can meet the risk of objects falling during the construction of attached lifting scaffolding.

[0007] This utility model device can save labor, speed up construction progress, and save costs. This utility model device has been used many times in actual projects and has been proven to meet the requirements of strength, rigidity, and integrity, and can be repeatedly used as an auxiliary facility of an attached lifting scaffold. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a cross-sectional view of the protective shed of the utility model.

[0009] Figure 2 for Figure 1 Enlarged view of part A in .

[0010] Figure 3 for Figure 1 Enlarged view of part B in .

[0011] Figure 4 for Figure 1 Enlarged view of section C in . DETAILED DESCRIPTION

[0012] 1. The height of the protective shed is 6m from the original ground. A warning area should be set up when the protective shed is erected, and a special person should be assigned to monitor it.

[0013] 2. The bamboo fence of the protective shed should be firmly tied to the steel pipe, and the load of the protective shed should be strictly controlled. If any problems are found, they should be corrected in time. People should be sent to check the fallen objects scattered on the protective shed regularly, and any fallen objects should be removed in time to reduce the source of danger.

[0014] 3. The steel pipes, fasteners and wire ropes used in the protective shed must be strictly controlled for quality. The steel pipes are made of Q235-A grade steel. Cracked, flattened, bent, rusted and unqualified components must not be used in the protective shed. Wire ropes with fluff, broken strands and severe rust must not be used.

[0015] 4. The cantilever protective shed must be inspected and accepted before being put into use, and can only be used after passing the inspection.

[0016] The utility model is further described in detail below in conjunction with the drawings.

[0017] Figure 1A cross-sectional view of a 6m wide protective shed of the utility model. The protective shed is assembled using fastener-type steel pipe scaffolding rods (6) (7) (4), and the steel pipes are uniformly Φ4.8mm×3.5mm. The lower part of the protective shed is connected to the shear wall (3) by the wall, and a Φ14mm screw (5) is passed through the template bolt hole. The outer side of the screw is double-sidedly welded to a 200mm long transverse short steel pipe (11), and the welding length is greater than 5d (d is the screw diameter). The other end of the screw (5) is fixed with an iron washer and a double nut not less than 80mm×80mm×8mm, and the screw should be exposed by no less than 3 turns of the nut. The front row of the protective shed is connected to the shear wall (3) by two 6×37Φ17 smooth steel wire ropes (1) (2). One end of the steel wire rope passes through the template bolt hole of the shear wall, wraps around the steel pipe twice, and is clamped with a riding rope clamp. When the steel wire rope passes through the shear wall, a soft cushion is placed underneath to protect the steel wire rope, such as rubber, wood or wood. The lower end of the steel wire rope is wound around the nodes of the longitudinal and transverse steel pipe rods for 3 turns, leaving a rope head ≥1m long (including the safety bend) at the end and clamped with the main pull rope by ≥3 riding-type clamps, with a clamp spacing of 150mm and a safety bend length of ≥500mm. The number and spacing of the clamps meet the requirements of the specification. The longitudinal steel pipes (7) with a spacing of 300mm are erected on the cantilevered transverse steel pipes (6) with a spacing of 1.5m. The bamboo fence (8) is fully laid on the longitudinal steel pipes (7). A dense mesh safety net (9) is laid on the bamboo fence (8), which is tightened, straightened and tied to meet the actual engineering needs. The guardrail (4) is erected at a height of ≥1.2m, with a horizontal bar (12) provided at the top and middle of the guardrail, a dense green safety net (10) hung on the inside, and a footboard ≥180mm high provided at the bottom of the guardrail (4).

[0018] Figure 2 Detailed view of node A in the cross-sectional view of the 6m wide protective shed of the utility model. The lower part of the protective shed is connected to the shear wall (3) by the wall. The bolt hole of the template used when pouring the concrete of the shear wall (3) is used to pass through the Φ14mm screw (5). The outer side of the screw is double-sidedly welded to a 200mm long transverse short steel pipe (11). The welding length is greater than 5d (d is the screw diameter). The other end of the screw (5) is fixed with an iron washer (13) not less than 80mm×80mm×8mm and a double nut (14). The screw (5) should be exposed from the nut (14) for not less than 3 buckles. The longitudinal steel pipes (7) with a spacing of 300mm are erected on the cantilevered transverse steel pipes (6) with a spacing of 1.5m. The bamboo fence (8) is fully spread on the longitudinal steel pipes (7). A dense mesh safety net (9) is laid on the bamboo fence (8), which is tightened, straightened and tied to meet the actual engineering needs. The height of the guardrail (4) shall be ≥1.2m, with a horizontal bar at the top and middle of the guardrail.

[0019] Figure 3Detailed view of node B in the cross-sectional view of the 6m wide protective shed of the utility model. The front row of the protective shed is connected to the shear wall (3) by two 6×37Φ17 smooth steel wire ropes (1) (2). One end of the steel wire rope passes through the bolt hole of the template of the shear wall, wraps around the steel pipe (15) twice, and is clamped by a riding rope clamp (16). When the steel wire rope (1) (2) passes through the shear wall (3), a soft cushion (17) is placed underneath to protect the steel wire rope (1) (2), such as rubber skin, wood board or wooden square.

[0020] Figure 4 Detailed view of node C in the cross-sectional view of the 6m wide protective shed of the utility model. The lower end of the steel wire rope (1) (2) is wound around the nodes of the longitudinal and transverse steel pipe rods (6) (7) for 3 turns, leaving a rope head ≥1m long (including the safety bend) at the end and clamped with the main pull rope by ≥3 riding clamps (16), the spacing between the clamps (16) is 150mm, the length of the safety bend (17) is ≥500mm, and the number and spacing of the clamps (16) meet the requirements of the specification. The longitudinal steel pipes (7) with a spacing of 300mm are erected on the cantilevered transverse steel pipes (6) with a spacing of 1.5m.

Claims

1. A 6m cantilevered horizontal protective shed below an attached lifting scaffold, characterized in that: include: Use fastener-type steel pipe scaffolding rods, the uniform model of steel pipe is Φ4.8mm×3.5mm; The lower part of the protective shed is connected to the shear wall by screw rods, which pass through the template bolt holes and are fixed by iron washers and double nuts; The front row of the protection shed is connected to the shear wall with a smooth steel wire rope, and the steel wire rope passes through the formwork bolt holes of the shear wall and is clamped with a riding rope clamp; The longitudinal steel pipe is erected on the cantilevered transverse steel pipe, bamboo fences are fully laid on the longitudinal steel pipes, and a dense mesh safety net is laid on the bamboo fences; The height of the guardrail shall not be less than 1.2m. Horizontal bars shall be installed at the top and middle of the railing, a dense mesh safety green net shall be hung on the inside, and a footboard shall be installed at the bottom of the guardrail.

2. The 6m cantilevered horizontal protective shed below the attached lifting scaffold according to claim 1 is characterized in that: The screw rod is welded to the transverse short steel pipe on both sides.

3. The 6m cantilevered horizontal protective shed below the attached lifting scaffold according to claim 1 is characterized in that: The lower end of the steel wire rope is wound around the nodes of the longitudinal and transverse steel pipe rods for 3 turns and is clamped with the main pull rope by a riding chuck.

4. The 6m cantilevered horizontal protective shed below the attached lifting scaffold according to claim 1 is characterized in that: When the steel wire rope passes through the shear wall, a soft cushion is provided underneath to protect the steel wire rope.

5. The 6m cantilevered horizontal protective shed below the attached lifting scaffold according to claim 1 is characterized in that: The longitudinal steel pipe spacing is 300mm, and the cantilevered transverse steel pipe spacing is 1.5m.

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