Rotatable cantilever scaffold corner fixing device

Abstract

The utility model discloses a rotatable overhanging scaffold corner fixing device, which belongs to the technical field of building construction, and comprises an overhanging beam, a rotating support and a locking mechanism, the overhanging beam is rotatably connected with the rotating support, the locking mechanism comprises a locking fixture block and a locking screw arranged on the overhanging beam, the locking fixture block is sleeved on the locking screw, and the locking screw is connected with the rotating support. A locking guide groove is formed in the rotating support, a plurality of sets of locking groove positions matched with the locking clamping blocks are arranged on the locking guide groove, the locking clamping blocks are embedded in the locking groove positions, the cantilever beam and the rotating support form limiting, when the cantilever beam needs to be adjusted, the cantilever beam only needs to be rotated to a designated position, then the locking nut is locked, and the cantilever beam can be adjusted. The locking clamping blocks are pressed and embedded in the corresponding locking groove positions, compared with the prior art, through rapid locking and unlocking of the locking clamping blocks and the locking guide grooves, rapid and free rotation adjustment of the cantilever beam is achieved, the convenience and safety of adjustment construction are effectively improved, the use and maintenance cost is reduced, and higher economical efficiency and applicability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a rotatable cantilever scaffold corner fixing device. Background Technology

[0002] The application of basket-type cantilever scaffolding construction technology in engineering projects has gradually matured and is widely used. Compared with traditional cantilever scaffolding, basket-type cantilever scaffolding has advantages such as flexible layout, reusability, low investment cost, and good performance. At the same time, it avoids the risk of leakage during later repairs of openings in the exterior walls, does not affect indoor construction, and saves construction time.

[0003] However, in the application of basket-type cantilever scaffolding, the scaffolding uprights at the external corners often cannot directly rest on the cantilevered I-beams due to errors in the arrangement or installation of the external scaffolding. To solve this problem, Chinese utility model patent CN210737795U discloses a swing-type cantilever support frame device, including an upper end plate, a lower end plate, a connecting shaft, and beams, which can achieve a certain angle of swing of the cantilevered I-beams. However, after the beam swings to a certain angle, the upper and lower end plates of the device support bear combined bending, shear, and torsional forces, resulting in insufficient rigidity. Furthermore, the swing angle of the beam is significantly limited, and under external forces, the beam is prone to sliding and becoming unstable along the guide groove, posing a certain safety hazard.

[0004] Chinese invention patent CN117266520A discloses a fixing device for the corner steel beam of a cantilevered steel pipe scaffold, which uses a limiting component in the positioning bolt sleeve to restrict the rotation of the I-beam. However, this device also suffers from insufficient rigidity of the upper and lower end plates of the support under external forces, posing certain safety hazards. Furthermore, the device's complex design makes maintenance during production and use difficult. Utility Model Content

[0005] In order to overcome the defects of the existing technology, this utility model provides a rotatable cantilever scaffold corner fixing device.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a rotatable cantilever scaffold corner fixing device, including a cantilever beam, a rotating support and a locking mechanism, wherein the cantilever beam is rotatably connected to the rotating support;

[0007] The locking mechanism includes a locking block and a locking screw installed on the cantilever beam. The locking block is sleeved on the locking screw. The rotating support is provided with a locking guide groove. The locking guide groove is provided with multiple sets of locking slots that cooperate with the locking block. The locking block is embedded in the locking slots to limit the movement between the cantilever beam and the rotating support.

[0008] Preferably, an unlocking spring is fitted on the locking screw, and the unlocking spring abuts against the locking block. The unlocking spring is used to push the locking block to separate from the locking guide groove.

[0009] Preferably, both the locking block and the locking guide groove are provided with locking teeth that can cooperate with each other, and the locking groove is the groove between the locking teeth on the locking guide groove.

[0010] Preferably, the locking guide groove is arc-shaped, and the two sides of the locking block are respectively provided with arc-shaped surfaces that cooperate with the two sides of the arc-shaped locking guide groove.

[0011] Preferably, the locking blocks are provided in two sets facing each other vertically, and the locking guide grooves are provided in two sets facing each other vertically.

[0012] Preferably, the upper and lower parts of the rotating support are provided with an upper end plate and a lower end plate, respectively, and the cantilever beam is rotatably connected to the upper end plate and the lower end plate by a rotating pin, and the locking guide groove is provided on the upper end plate and the lower end plate.

[0013] Preferably, a yoke plate is provided between the upper end plate and the lower end plate, the yoke plate is fixedly connected to the rotating support, an upper yoke plate is provided at the connection angle between the upper end plate and the rotating support, and a lower yoke plate is provided at the connection angle between the lower end plate and the rotating support.

[0014] Preferably, a screw sleeve is fitted on the locking screw, and a pin sleeve is fitted on the rotating pin, with the screw sleeve and pin sleeve respectively fixedly connected to the cantilever beam.

[0015] Preferably, the rotating support is an L-shaped support, with connecting screw holes on both sides of the L-shaped support that mate with the embedded parts.

[0016] Preferably, the cantilever beam is provided with a movable and adjustable fixing mechanism, which is used to connect the external scaffold uprights.

[0017] The beneficial effects of this utility model are as follows: When it is necessary to adjust the cantilever beam, simply rotate the cantilever beam to the desired position, tighten the locking nut, and press the locking block into the corresponding locking groove to form a limit. Compared with the prior art, the rapid locking and unlocking of the locking block and locking guide groove enables the rapid and free rotation adjustment of the cantilever beam, effectively improving the convenience and safety of adjustment construction, reducing the cost of use and maintenance, and having higher economic efficiency and applicability. Attached Figure Description

[0018] Figure 1 This is a top view schematic diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a partially enlarged top view of an embodiment of the present utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0022] Figure 5 This is a side view schematic diagram of an embodiment of the present utility model;

[0023] Figure 6 This is a partially enlarged side view of an embodiment of the present utility model;

[0024] Figure 7 This is a partially exploded view of an embodiment of the present invention.

[0025] In the diagram, 10 is the cantilever beam; 11 is the rotating pin; 12 is the pin sleeve; 13 is the fixing mechanism; 20 is the rotating support; 21 is the upper end plate; 22 is the lower end plate; 23 is the armhole plate; 24 is the upper armhole plate; 25 is the lower armhole plate; 26 is the connecting screw hole; 31 is the locking block; 32 is the locking screw; 33 is the locking nut; 34 is the cotter pin; 35 is the unlocking spring; 36 is the screw sleeve; 37 is the locking guide groove; 38 is the locking groove; and 39 is the locking teeth. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] As attached Figure 1-7 As shown, the present invention provides a rotatable cantilever scaffold corner fixing device, including a cantilever beam 10, a rotating support 20 and a locking mechanism. The cantilever beam 10 is used to install the external scaffold uprights, and the cantilever beam 10 is rotatably connected to the rotating support 20.

[0028] The locking mechanism includes a locking block 31 and a locking screw 32 mounted on the cantilever beam 10. The locking screw 32 passes through the cantilever beam 10, the locking block 31 is movably sleeved on the locking screw 32, and a locking nut 33 is fastened to the locking screw 32 to press and fix the locking block 31. A cotter pin 34 is inserted into the outer end of the locking screw 32 to prevent the locking nut 33 and the locking block 31 from falling off. The rotating support 20 is provided with a locking guide groove 37. The rod 32 passes through the locking guide groove 37, and the locking block 31 is opposite to the locking guide groove 37. The locking guide groove 37 is provided with multiple sets of locking slots 38 that cooperate with the locking block 31 in the extension direction. The number and spacing of the locking slots 38 are determined according to the required rotation adjustment angle range and the size of the rotation fine adjustment angle of the cantilever beam 10. The locking block 31 is embedded in the locking slots 38 to limit the movement between the cantilever beam 10 and the rotating support 20.

[0029] Specifically, when the cantilever beam 10 needs to be adjusted, simply rotate the cantilever beam 10 to the desired position, tighten the locking nut 33, and press the locking block 31 into the corresponding locking groove 38 to form a limit. Compared with the existing technology, the rapid locking and unlocking of the locking block 31 and the locking guide groove 37 enables the rapid and free rotation adjustment of the cantilever beam 10, which effectively improves the convenience and safety of adjustment construction, reduces the cost of use and maintenance, and has higher economic efficiency and applicability.

[0030] Furthermore, to improve unlocking speed and safety, an unlocking spring 35 is fitted on the locking screw 32. The unlocking spring 35 abuts against the locking block 31 and is used to push the locking block 31 to separate from the locking guide groove 37. Specifically, when it is necessary to rotate and adjust the cantilever beam 10, the locking nut 33 is loosened, and the unlocking spring 35 can simultaneously push the locking block 31 to slide, so that the locking block 31 separates from the locking guide groove 37. This effectively improves the convenience and safety of adjustment construction without the need to completely disassemble the locking mechanism.

[0031] Furthermore, both the locking block 31 and the locking guide groove 37 are provided with locking teeth 39 that can cooperate with each other, and the locking groove 38 is the groove between the locking teeth 39 on the locking guide groove 37.

[0032] Furthermore, to improve the convenience and stability of adjustment and construction, the locking guide groove 37 is arc-shaped, and the locking block 31 has arc-shaped surfaces on both sides that cooperate with the arc-shaped locking guide groove 37. After loosening the locking nut 33, the setting angle of the cantilever beam 10 can be adjusted by simply rotating the cantilever beam 10, and the freely adjustable angle is greater, up to 180°.

[0033] Furthermore, in order to improve the stability and security of locking, two sets of locking blocks 31 are provided vertically opposite each other, and two sets of locking guide grooves 37 are provided vertically opposite each other.

[0034] Furthermore, in order to improve the overall structural strength, the upper part of the rotating support 20 is provided with an upper end plate 21 and a lower end plate 22, respectively. The cantilever beam 10 is rotatably connected to the upper end plate 21 and the lower end plate 22 through the rotating pin 11. The locking guide groove 37 is provided on the upper end plate 21 and the lower end plate 22.

[0035] A slack plate 23 is provided between the upper end plate 21 and the lower end plate 22. The slack plate 23 is fixedly connected to the rotating support 20. An upper slack plate 24 is provided at the connection angle between the upper end plate 21 and the rotating support 20, and a lower slack plate 25 is provided at the connection angle between the lower end plate 22 and the rotating support 20.

[0036] A screw sleeve 36 is fitted on the locking screw 32, and a pin sleeve 12 is fitted on the rotating pin 11. The screw sleeve 36 and the pin sleeve 12 are respectively fixedly connected to the cantilever beam 10.

[0037] Furthermore, the rotating support 20 is an L-shaped support, and the two sides of the L-shaped support are respectively provided with connecting screw holes 26 that mate with the embedded parts. The connecting bolts of the embedded parts are connected to the connecting screw holes 26.

[0038] Furthermore, a fixing mechanism 13 is movably and adjustable on the cantilever beam 10. The fixing mechanism 13 is used to connect the external scaffold uprights, and the setting position of the fixing mechanism 13 on the cantilever beam 10 can be adjusted as needed.

[0039] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A rotatable cantilever scaffold corner fixing device, characterized in that, It includes a cantilever beam (10), a rotating support (20) and a locking mechanism, wherein the cantilever beam (10) is rotatably connected to the rotating support (20). The locking mechanism includes a locking block (31) and a locking screw (32) set on the cantilever beam (10). The locking block (31) is sleeved on the locking screw (32). The rotating support (20) is provided with a locking guide groove (37). The locking guide groove (37) is provided with multiple sets of locking slots (38) that cooperate with the locking block (31). The locking block (31) is embedded in the locking slots (38) to limit the movement between the cantilever beam (10) and the rotating support (20).

2. The rotatable cantilever scaffolding corner fixing device according to claim 1, characterized in that, The locking screw (32) is fitted with an unlocking spring (35), which abuts against the locking block (31). The unlocking spring (35) is used to push the locking block (31) to separate from the locking guide groove (37).

3. The rotatable cantilever scaffolding corner fixing device according to claim 1, characterized in that, Both the locking block (31) and the locking guide groove (37) are provided with locking teeth (39) that can cooperate with each other. The locking groove (38) is the groove between the locking teeth (39) on the locking guide groove (37).

4. The rotatable cantilever scaffolding corner fixing device according to claim 1, characterized in that, The locking guide groove (37) is arc-shaped, and the locking block (31) has arc-shaped surfaces on both sides that cooperate with the arc-shaped locking guide groove (37).

5. The rotatable cantilever scaffolding corner fixing device according to claim 1, characterized in that, The locking blocks (31) are arranged in two sets facing each other vertically, and the locking guide grooves (37) are arranged in two sets facing each other vertically.

6. The rotatable cantilever scaffolding corner fixing device according to claim 1, characterized in that, The rotating support (20) is provided with an upper end plate (21) and a lower end plate (22) on its upper and lower parts respectively. The cantilever beam (10) is rotatably connected to the upper end plate (21) and the lower end plate (22) respectively through a rotating pin (11). The locking guide groove (37) is provided on the upper end plate (21) and the lower end plate (22).

7. The rotatable cantilever scaffolding corner fixing device according to claim 6, characterized in that, A slack plate (23) is provided between the upper end plate (21) and the lower end plate (22). The slack plate (23) is fixedly connected to the rotating support (20). An upper slack plate (24) is provided at the connection angle between the upper end plate (21) and the rotating support (20), and a lower slack plate (25) is provided at the connection angle between the lower end plate (22) and the rotating support (20).

8. The rotatable cantilever scaffolding corner fixing device according to claim 6, characterized in that, A screw sleeve (36) is fitted on the locking screw (32), and a pin sleeve (12) is fitted on the rotating pin (11). The screw sleeve (36) and the pin sleeve (12) are respectively fixedly connected to the cantilever beam (10).

9. The rotatable cantilever scaffolding corner fixing device according to claim 1, characterized in that, The rotating support (20) is an L-shaped support, and the two sides of the L-shaped support are respectively provided with connecting screw holes (26) that cooperate with the embedded parts.

10. The rotatable cantilever scaffolding corner fixing device according to claim 1, characterized in that, The cantilever beam (10) is equipped with a movable and adjustable fixing mechanism (13), which is used to connect the external frame uprights.

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