CN210713741U - Overhanging type scaffold structure - Google Patents

Abstract

A cantilevered scaffolding structure, comprising an upper floor, a lower floor, a cantilevered steel beam, a scaffolding support, a positioning base and a pulling rope, at least two positioning bases are fixed on the cantilever end, and the positioning base It includes steel sleeve, positioning rod, fastening bolt and positioning nut. There are bolt holes on the lower plate. The positioning nut is aligned with the bolt hole and welded on the lower side of the lower plate. The top of the fastening bolt is pressed against the underside of the cantilever steel beam. On the surface, the steel sleeve hoop is at the position of the overhanging end corresponding to the scaffolding support, and the bottom of the vertical rod is sleeved on the positioning rod and placed on the upper side of the upper plate. The bottom end of the pulling cable is fixed on the lower side of the base, and the top end of the pulling cable is fixedly connected to the outer end of the upper floor through the embedded part. The utility model avoids the damage to the body of the cantilevered steel beam caused by welding, and makes the steel beam weak in local force. Facade appearance quality, easy to disassemble.

Description

A cantilevered scaffolding structure

technical field

The utility model belongs to the field of scaffolding, in particular to a vertical pole cantilever type scaffolding structure.

Background technique

During the construction of the main part of the building, in order to ensure the safety of the construction personnel, cantilevered scaffolding will be erected on the outside of the main structure as required. security stability. The traditional method is to use measures such as welding positioning steel bars or steel pipes, but this method damages the cantilevered steel beams due to welding and reduces the turnover rate of the steel beams. In addition, when removing the cantilevered steel beam, because of the existence of positioning steel bars, it is extremely difficult to remove the cantilevered steel beam at high altitude, and there is a great potential safety hazard.

Utility model content

The purpose of the utility model is to provide a cantilevered scaffolding structure, to solve the technical problems of welding damage to the steel beam, reducing the turnover rate of the steel beam, and insufficient high-altitude welding accuracy, causing huge hidden dangers in the quality and safety of scaffolding; It is not easy to dismantle and construct, and there are potential safety hazards.

To achieve the above object, the utility model adopts the following technical solutions:

A cantilevered scaffolding structure, comprising an upper floor, a lower floor, a cantilevered steel beam, a scaffolding support, a positioning base and a pulling rope,

The outer end of the cantilevered steel beam cantilevered out of the outer side of the lower floor to form a cantilevered end, and the inner end of the cantilevered steel beam is fixedly connected to the upper surface of the lower floor,

At least two positioning bases are fixed on the cantilevered end, and the positioning bases include a steel sleeve with a rectangular cross-section, a vertical positioning rod, a vertical fastening bolt and a positioning nut. The barrel includes an upper plate, a lower plate and side plates on both sides, the distance between the upper plate and the lower plate is greater than the vertical dimension of the cantilevered steel beam, and the distance between the side plates is greater than the lateral dimension of the cantilevered steel beam, The positioning rod is centrally and fixedly connected to the upper side of the upper plate, and the upper surface of the cantilevered steel beam is pressed against the lower side of the upper plate,

The lower plate is provided with a row and at least two bolt holes along the longitudinal direction of the plate body, the positioning nut is aligned with the bolt holes and welded to the lower side of the lower plate, and the top of the fastening bolt is anchored and fixed from bottom to top by the positioning nut. The through bolt holes are pressed against the underside surface of the cantilevered steel beam,

The steel sleeve ferrule corresponds to the position of the scaffolding bracket at the cantilever end. The scaffolding bracket includes a vertical rod and a horizontal rod, the size of the upper plate is larger than the cross-sectional size of the vertical rod, and the bottom of the vertical rod is Sleeve on the positioning rod and land on the upper side of the upper plate,

The bottom end of the pulling cable is fixed on the lower side of the base, and the top end of the pulling cable is fixedly connected to the outer end of the upper floor through the embedded part.

The steel sleeve is welded from four steel plates or cut from a rectangular steel tube.

The cantilevered steel beam is an I-beam, including an upper flange plate, a web plate and a lower flange plate, the upper flange plate is pressed against the lower side surface of the upper plate, and the lower side of the lower flange plate The surface is pressed against the top of the fastening bolt.

The gap between the web plate and the side plate is filled with anti-overturning wooden squares.

The positioning rods are short steel bars.

The positioning nut is a double nut.

An inner limiting space for limiting the pull-connection cable is formed between the fastening bolts, and the bottom end of the pull-connection cable is bound in the inner limiting space.

The fastening bolts include the outermost outer bolts and the rest of the inner bolts. The two sides of the outer bolts are fixedly connected with vertical limit rods, and two limit rods are laterally arranged. for short bars.

The bottom end of the pulling cable is bound on the limit rod.

Compared with the prior art, the utility model has the following characteristics and beneficial effects:

The utility model fixes the connection between the fixed support and the steel beam through the bolt device, which avoids the damage to the body of the cantilevered steel beam caused by welding, makes the steel beam weak in local force, and reduces the turnover utilization rate. The utility model guarantees the precision requirements of the component size to the greatest extent through the stereotyped processing. When the first floor of the cantilevered scaffold is erected, the position can be flexibly adjusted according to the actual situation on the site, and no high-altitude welding is required, which ensures the external façade of the cantilevered scaffold. The appearance quality of the erection. The utility model can be easily disassembled after the use is completed, and is convenient for collection and storage, which is convenient for transportation, and reduces the amortization cost of material input.

Description of drawings

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic side view of the structure of FIG. 1 .

FIG. 3 is a partial enlarged schematic view of FIG. 1 .

FIG. 4 is a schematic view of the structure of the positioning base.

FIG. 5 is a schematic side view of the structure of FIG. 4 .

FIG. 6 is a schematic structural diagram of another positioning base.

FIG. 7 is a schematic side view of the structure of FIG. 6 .

FIG. 8 is a schematic view of the bottom view of FIG. 6 .

FIG. 9 is a schematic diagram of the application state structure of FIG. 6 .

Reference numerals: 1-upper floor, 2-lower floor, 3-cantilevered steel beam, 4-pulling rope, 5-steel sleeve, 51-upper board, 52-lower board, 53-side board, 6- Positioning rod, 7- Fastening bolt, 71- Outer bolt, 72- Inner bolt, 8- Positioning nut, 9- Vertical rod, 10- Cross rod, 11- Embedded part, 12- Upper flange plate, 13 - Web, 14 - Lower flange plate, 15 - Anti-overturning wooden square, 16 - Limit space, 17 - Limit rod.

Detailed ways

Embodiment Referring to Figures 1-5, a cantilevered scaffolding structure includes an upper floor 1, a lower floor 2, a cantilevered steel beam 3, a scaffolding support, a positioning base and a pulling rope 4.

The outer end of the cantilevered steel beam is cantilevered out from the outer side of the lower floor to form a cantilevered end, and the inner end of the cantilevered steel beam is fixedly connected to the upper surface of the lower floor 2 .

At least two positioning bases are fixed on the cantilevered ends, and the positioning bases include a steel sleeve 5 with a rectangular cross-section, a vertical positioning rod 6, a vertical fastening bolt 7 and a positioning nut 8, The steel sleeve includes an upper plate 51, a lower plate 52 and side plates 53 on both sides. The distance between the upper plate 51 and the lower plate 52 is greater than the vertical dimension of the cantilevered steel beam 3. The distance is greater than the lateral dimension of the cantilevered steel beam 3 , the positioning rod 6 is centrally and fixedly connected to the upper side of the upper plate 51 , and the upper surface of the cantilevered steel beam is pressed against the lower side of the upper plate 51 .

The lower plate 52 is provided with a row of at least two bolt holes along the longitudinal direction of the plate body, two in this embodiment. The positioning nut 8 is aligned with the bolt holes and welded to the lower side of the lower plate 52. The fastening bolts The top of 7 is anchored from bottom to top through positioning nuts 8 and pressed against the lower side surface of the cantilevered steel beam 3 through the bolt holes.

The steel sleeve 5 is hooped at the cantilevered end corresponding to the scaffolding bracket. The scaffolding bracket includes a vertical rod 9 and a horizontal rod 10. The size of the upper plate 51 is larger than the cross-sectional size of the vertical rod 9, so The bottom of the vertical rod 9 is sleeved on the positioning rod 6 and is placed on the upper side of the upper plate 51 .

The bottom end of the pulling cable 4 is fixed on the lower side of the positioning base, and the top end of the pulling cable 4 is fixedly connected to the outer end of the upper floor 1 through the embedded part 11 .

The steel sleeve is welded from four steel plates or cut from a rectangular steel tube. In this embodiment, four steel plates are welded.

The cantilevered steel beam is an I-beam, including an upper flange plate 12, a web plate 13 and a lower flange plate 14. The upper flange plate 12 is pressed against the lower surface of the upper plate 51, and the lower flange The lower side surface of the edge plate 14 is pressed against the top of the fastening bolt 7 . The gap between the web plate 13 and the side plate 53 is filled with anti-overturning wooden squares 15 .

The positioning rod 6 is a short steel bar. The positioning nut 8 is a double nut. An inner limiting space 16 is formed between the fastening bolts 7 for limiting the pull-connection cable, and the bottom end of the pull-connection cable 4 is bound in the inner limiting space 16 .

Referring to the embodiment shown in FIGS. 6-9 , the fastening bolts 7 include the outermost outer bolts 71 and the remaining inner bolts 72 . In a specific application process, in order to prevent the fastening bolts from being damaged, vertical limit rods 17 , which are two limit rods 17 in this embodiment, may be fixedly connected to both sides of the outer bolt 71 . Two limit rods 17 are laterally arranged, and the limit rods 17 are short steel bars. The bottom end of the pulling cable 4 is bound on the limit rod 17 to prevent the pulling cable from directly acting on the bolt.

When the utility model is in use, the positioning base is fixed on the cantilever end, and then according to the requirements of the construction plan, the positioning on the cantilevered steel beam is determined, and the positioning base is firmly fixed on the cantilever by tightening the fastening bolts. On the overhanging steel beam; when the cantilevered scaffolding is removed to the base, the positioning base can be removed so that there is no obstruction on the overhanging steel beam, and the overhanging steel beam can be removed from the inside of the structure. The dismantled positioning base can be used for turnover, which is convenient for storage and transportation, and further improves the turnover utilization rate of the cantilevered steel beam system components.

Claims (9)

1. A cantilevered scaffolding structure, characterized in that: it comprises an upper floor (1), a lower floor (2), a cantilevered steel beam (3), a scaffolding support, a positioning base and a pulling rope (4). ), The outer end of the cantilevered steel beam cantilevered out of the outer side of the lower floor to form a cantilevered end, and the inner end of the cantilevered steel beam is fixedly connected to the upper surface of the lower floor (2), At least two positioning bases are fixed on the cantilevered ends, and the positioning bases include a steel sleeve (5) with a rectangular cross-section, a vertical positioning rod (6), and a vertical fastening bolt (7). ) and a positioning nut (8), the steel sleeve includes an upper plate (51), a lower plate (52) and side plates (53) on both sides, the distance between the upper plate (51) and the lower plate (52) is greater than the vertical dimension of the cantilevered steel beam (3), the distance between the side plates (53) is greater than the lateral dimension of the cantilevered steel beam (3), and the positioning rod (6) is centrally and fixedly connected to the upper plate ( 51), the upper surface of the cantilevered steel beam is pressed against the lower side of the upper plate (51), The lower plate (52) is provided with a row of at least two bolt holes along the longitudinal direction of the plate body, the positioning nut (8) is aligned with the bolt holes and welded to the lower side of the lower plate (52), the fastening bolts (7) ) is anchored from bottom to top through the positioning nut (8) and is pressed against the lower surface of the cantilevered steel beam (3) through the bolt hole, The steel sleeve (5) is hooped at the overhanging end corresponding to the scaffolding bracket, the scaffolding bracket includes a vertical bar (9) and a horizontal bar (10), and the size of the upper plate (51) is larger than that of the vertical bar (10). The cross-sectional dimension of the rod (9), the bottom of the vertical rod (9) is sleeved on the positioning rod (6) and placed on the upper side of the upper plate (51), The bottom end of the pulling cable (4) is fixed on the lower side of the positioning base, and the top end of the pulling cable (4) is fixedly connected to the outer end of the upper floor (1) through the embedded part (11). 2 . The cantilevered scaffolding structure according to claim 1 , wherein the steel sleeve is welded from four steel plates or cut from a rectangular steel pipe. 3 . 3. The cantilevered scaffolding structure according to claim 1, wherein the cantilevered steel beam is an I-beam, comprising an upper flange plate (12), a web plate (13) and a lower flange plate ( 14), the upper flange plate (12) is pressed against the lower side surface of the upper plate (51), and the lower side surface of the lower flange plate (14) is pressed against the top of the fastening bolt (7). 4 . The cantilevered scaffolding structure according to claim 3 , wherein the gap between the web ( 13 ) and the side plates ( 53 ) is filled with anti-overturning wooden squares ( 15 ). 5 . 5 . The cantilevered scaffolding structure according to claim 1 , wherein the positioning rods ( 6 ) are short steel bars. 6 . 6 . The cantilevered scaffold structure according to claim 1 , wherein the positioning nut ( 8 ) is a double nut. 7 . 7 . The cantilevered scaffolding structure according to claim 1 , wherein an inner limit space ( 16 ) for limiting the pulling and connecting ropes is formed between the fastening bolts (7 ), and the pulling and connecting ropes ( The bottom end of 4) is bound in the inner limiting space (16). 8. The cantilevered scaffolding structure according to any one of claims 1-6, wherein the fastening bolts (7) comprise the outermost outer bolts (71) and the remaining inner bolts (72), The two sides of the outer bolt (71) are fixedly connected with vertical limit rods (17), two limit rods (17) are laterally arranged, and the limit rods (17) are short steel bars. 9 . The cantilevered scaffolding structure according to claim 8 , wherein the bottom end of the pulling rope ( 4 ) is bound on the limit rod ( 17 ). 10 .

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