Fabricated triangular steel cantilevered scaffold

Abstract

This utility model relates to the technical field of prefabricated triangular steel cantilever scaffolding, and more particularly to a prefabricated triangular steel cantilever scaffolding. It includes a wall panel, the surface of which is fitted with an installation frame using screws and nuts. A foot pedal is provided on the surface of the installation frame. Adjustment devices are provided on both sides of the installation frame. Each adjustment device includes an adjustment frame and a support frame. One side of the adjustment frame is fixedly connected to the surface of the installation frame. A bearing frame is inserted into the inner wall of the adjustment frame. A drive shaft is rotatably connected to the inner wall of the bearing frame near the adjustment frame. The two ends of the arc surface of the drive shaft have threads in opposite directions. Positioning frames are threaded through both ends of the arc surface of the drive shaft. Side plates are fixedly connected to both sides of the adjustment frame. The prefabricated triangular steel cantilever scaffolding provided by this utility model has the advantage of convenient and rapid assembly and limiting protection of the scaffolding.

Description

Technical Field

[0001] This utility model relates to the technical field of prefabricated triangular steel cantilever scaffolding, and in particular to a prefabricated triangular steel cantilever scaffolding. Background Technology

[0002] In construction engineering, cantilevered scaffolding is a very common external working platform. It does not need to be erected from the ground, but is directly cantilevered from the building floor to provide support for high-altitude operations.

[0003] Existing technologies, such as the utility model patent with publication number CN213268818U, disclose a wall-mounted angle steel triangular cantilever base frame for scaffolding. This patent employs a combined structure of wall-mounted uprights, cantilevered horizontal beams, diagonal bracing beams, wall-mounted bolts, padding steel plates, first inner bracing beams, second inner bracing beams, third inner bracing beams, sleeve columns, and first, second, and third inner bracing connection points. The wall-mounted bolts are M20 through-wall bolts, with extended nuts and double padding steel plates on the inner side. The outer nuts are welded to the steel profile. Tightening is performed by tightening the bolts from the inner side, enabling selective erection of scaffolding at high floors using the cantilever base frame. Uprights and horizontal bars are sequentially erected on the sleeve columns on the cantilevered horizontal beams, forming a double-row external protective scaffold. Simultaneously, a safety net frame is erected on the sleeve columns on the diagonal bracing beams, forming a single 6.1-meter-high prefabricated exterior wall-specific frame. The structure boasts high stability, high stability, and good load-bearing capacity. It saves time, materials, labor, and effort. It overcomes the shortcomings of existing technologies.

[0004] During construction, it has been found that the operation and use of steel cantilever scaffolding is extremely inconvenient because conventional scaffolding typically uses fixed-length cantilevered I-beams and relies on pre-embedded rings for fixation. This leads to situations where, when construction needs change and the cantilever length or position needs to be adjusted, destructive dismantling and re-embedding are necessary. Consequently, this results in extended construction periods, significant material waste, soaring labor costs, and repeated construction causing damage to the building structure. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies in the operation and use of steel cantilever scaffolding. Because conventional scaffolding typically uses fixed-length cantilevered I-beams and relies on pre-embedded rings for fixation, its installation and adjustment are extremely inconvenient. When construction needs change and adjustments to the cantilever length or position are required, destructive demolition and re-embedding are necessary, leading to extended construction periods, serious material waste, soaring labor costs, and repeated construction causing damage to the building structure.

[0006] To solve the above technical problems, this utility model provides a prefabricated triangular steel cantilever scaffold, comprising: a wall panel, on the surface of which an installation frame is mounted by screws and nuts, a foot pedal on the surface of the installation frame, and adjustment devices on both sides of the surface of the installation frame. Each adjustment device includes an adjustment frame and a support frame. One side of the adjustment frame is fixedly connected to the surface of the installation frame, and a bearing frame is inserted into the inner wall of the adjustment frame. A drive shaft is rotatably connected to the inner wall of the bearing frame near the adjustment frame. The two ends of the arc surface of the drive shaft are threaded with opposite threads, and positioning frames are threaded through both ends of the arc surface of the drive shaft. Side plates are fixedly connected to both sides of the adjustment frame, and the inner wall of the positioning frame is inserted into the surface of the side plate. The surface of the foot pedal abuts against the upper surfaces of the two bearing frames.

[0007] The aforementioned components achieve the following effects: Through the design of the adjustment device, rapid assembly and flexible adjustment of the scaffolding are realized. The adjustment frame is fixedly connected to the mounting frame, and the support frame is inserted into the adjustment frame. The reverse thread on the drive shaft allows the two positioning frames to move synchronously towards or away from each other when the drive shaft is rotated, thereby pushing or pulling the support frame to extend or retract from the adjustment frame, realizing the telescopic adjustment of the scaffolding platform. The footboard abuts against the upper surface of the support frame, providing a stable working platform. The entire structure adopts a prefabricated design, simplifying the installation process, suitable for different cantilever requirements, and improving the adaptability and reusability of the scaffolding.

[0008] Preferably, a guide rod is fixedly connected to the inner wall surface of the end of the support frame near the adjustment frame, and the arc surface of the guide rod slides through the surface of the positioning frame.

[0009] The aforementioned components achieve the following effects: the guide rod is fixed to the inner wall of the support frame and slides through the positioning frame, providing guidance and stability. When adjusting the position of the support frame, the guide rod prevents the positioning frame from rotating or shifting during movement, ensuring the positioning frame moves in a straight line, making the adjustment process smoother and more precise. Simultaneously, the guide rod reduces the load on the drive shaft, extending its service life.

[0010] Preferably, positioning grooves are provided on both ends of the support frame, and positioning rods are fixedly connected to the mounting frame and the bearing frame at positions corresponding to the positioning grooves. The arc surface of the positioning rod is inserted into the inner wall of the positioning groove, and the arc surface of the positioning rod is threadedly connected to a pressing shaft. The cross-section of the support frame is inclined.

[0011] The aforementioned components achieve the following effects: through the cooperation of the positioning groove, positioning rod, and pressing shaft, the connection strength between the support frame and the mounting frame / bearing frame is enhanced. The positioning rod is inserted into the positioning groove to form a plug-in fixation, and the pressing shaft is threaded onto the positioning rod. After tightening, it applies compressive force to the support frame, making it firmly locked. The inclined design of the support frame forms a triangular support structure, effectively distributing the load and improving the overall stability and anti-overturning ability of the scaffold, making it suitable for cantilevered conditions.

[0012] Preferably, the positioning rod is movably connected to an auxiliary frame on its arc surface, and two insertion holes are opened on the two end surfaces of the support frame corresponding to the positions of the auxiliary frame. The inner walls of the insertion holes are inserted into the arc surface of the auxiliary frame, and the surface of the auxiliary frame abuts against one side of the extrusion shaft.

[0013] The aforementioned components achieve the following effects: the auxiliary frame is movably connected to the positioning rod and plugs into the socket on the support frame, further enhancing the reliability of the connection point. When the compression shaft is tightened, the auxiliary frame is pressed against the surface of the support frame, increasing the contact area and preventing the support frame from loosening or slipping under stress. This design improves the safety of the scaffolding under dynamic loads, ensuring that the support frame is always in optimal working condition.

[0014] Preferably, the surface of the support frame is provided with an auxiliary device, the auxiliary device including a slide groove, the slide groove being formed on the surface of the support frame, both ends of the inner wall of the slide groove being slidably connected to a slide rod, the upper surface of the slide rod being fixedly connected to a connecting block, one side surface of the support frame being fixedly connected to a slide rail, the surface of the slide rail being slidably connected to the inner wall of the connecting block, the side wall surface of the connecting block being threaded with a fixed shaft, one end of the fixed shaft abutting against the surface of the slide rail, the four connecting blocks being in groups of two, and the side of each group of connecting blocks closest to each other abutting against the side wall surface of the foot pedal.

[0015] The aforementioned components achieve the following effects: the auxiliary device allows for fine-tuning and securing of the foot pedals. The slide rails and slide bars allow the connecting block to slide on the support frame surface, accommodating foot pedals of different sizes. The connecting block slidably connects to the slide rail and is secured by a fixed shaft, thereby clamping the sidewalls of the foot pedals and preventing them from shifting or wobbling during use. This improves the safety and stability of the work platform while facilitating quick installation and disassembly.

[0016] Preferably, each set of connecting blocks has an inlay groove on the side closest to each other, and the inner wall of the inlay groove engages with the side wall surface of the foot pedal.

[0017] The aforementioned components achieve the following effect: the groove design allows the connecting block to interlock with the side wall of the foot pedal, increasing the tightness of the connection. This interlocking structure effectively prevents the foot pedal from sliding laterally or detaching, maintaining stability even under vibration or impact loads, further enhancing the reliability and safety of the scaffolding.

[0018] Preferably, baffles are fixedly connected to both sides of the lower surface of the foot pedal, and the side of the two baffles that are close to each other is engaged with the surface of the support frame.

[0019] The aforementioned components achieve the following effect: the baffle is fixed to the lower surface of the foot pedal and engages with the surface of the support frame, forming an anti-slip mechanism. The baffle restricts the longitudinal movement of the foot pedal, ensuring that the foot pedal always remains in contact with the support frame, preventing the foot pedal from shifting due to accidental stepping or load changes.

[0020] Compared with related technologies, the prefabricated triangular steel cantilever scaffolding provided by this utility model has the following beneficial effects: This invention provides a prefabricated triangular steel cantilever scaffold. Through the operation of an adjustment device, the cantilever length of the scaffold can be flexibly, synchronously, and stably adjusted. Rotating a single drive shaft drives positioning frames with reverse threads at both ends to move synchronously in opposite directions, thus smoothly pushing or pulling the load-bearing frame to extend and retract. It can quickly adapt to different construction facades and requirements, greatly improving the adaptability and work efficiency of the scaffold. At the same time, guide rods and other structures ensure stability and accuracy during the adjustment process, avoiding jamming and deviation, making the structure safer and more reliable.

[0021] By operating the auxiliary device, the foot pedals can be quickly and securely installed and positioned. This device, through a sliding connecting block and a slide rail, can accommodate foot pedals of different widths and is quickly locked in place via a fixed shaft. The inlaid groove on the connecting block engages with the side wall of the foot pedal, and the baffle at the bottom of the foot pedal engages with the upper surface of the support frame, forming a three-dimensional, multi-directional positioning mechanism. This effectively prevents the foot pedals from sliding horizontally, tilting laterally, or shifting longitudinally during construction, significantly enhancing the overall integrity and stability of the work platform and providing construction personnel with a safer and more stable operating surface. Attached Figure Description

[0022] Figure 1 A structural schematic diagram of an assembled triangular steel cantilever scaffold provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the regulating device. Figure 3 for Figure 1 A partial structural schematic diagram of the adjustment device is shown; Figure 4 for Figure 3 The enlarged structural diagram at point A is shown below; Figure 5 for Figure 1 The diagram shows the structure of the auxiliary device.

[0023] The following are the labeling elements in the diagram: 1. Wall panel; 2. Foot pedal; 3. Mounting frame; 4. Adjustment device; 401. Adjustment frame; 402. Side plate; 403. Support frame; 404. Drive shaft; 405. Guide rod; 406. Positioning frame; 407. Support frame; 408. Positioning rod; 409. Positioning groove; 410. Insertion hole; 411. Auxiliary frame; 412. Extrusion shaft; 5. Auxiliary device; 51. Connecting block; 52. Slide rail; 53. Slide groove; 54. Slide rod; 55. Fixed shaft; 56. Inlay groove; 57. Baffle. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 5 The present invention provides a prefabricated triangular steel cantilever scaffold, comprising: a wall panel 1, an installation frame 3 mounted on the surface of the wall panel 1 by means of screws and nuts, a foot pedal 2 provided on the surface of the installation frame 3, an adjustment device 4 provided on both sides of the surface of the installation frame 3, and an auxiliary device 5 provided on the surface of the support frame 403.

[0027] In the embodiments of this utility model, please refer to Figure 2 , Figure 3 and Figure 4The adjusting device 4 includes an adjusting frame 401 and a support frame 407. One side of the adjusting frame 401 is fixedly connected to the surface of the mounting frame 3. A support frame 403 is inserted into the inner wall of the adjusting frame 401. A drive shaft 404 is rotatably connected to the inner wall of the support frame 403 near the adjusting frame 401. The two ends of the arc surface of the drive shaft 404 are threaded with opposite threads. Positioning frames 406 are threaded through both ends of the arc surface of the drive shaft 404. Side plates 402 are fixedly connected to both sides of the adjusting frame 401. The inner wall of the positioning frame 406 is inserted into the surface of the side plate 402. The surface of the foot pedal 2 abuts against the upper surfaces of the two support frames 403. A guide rod 405 is fixedly connected to the inner wall surface of the support frame 403 near the adjusting frame 401. The arc surface of the guide rod 405 slides through the surface of the positioning frame 406. Positioning grooves 409 are provided on both ends of the support frame 407. Positioning rods 408 are fixedly connected to the surfaces of the mounting frame 3 and the bearing frame 403 at the positions corresponding to the positioning grooves 409. The arc surface of the positioning rod 408 is inserted into the inner wall of the positioning groove 409. The arc surface of the positioning rod 408 is threadedly connected to the extrusion shaft 412. The cross section of the support frame 407 is inclined. The arc surface of the positioning rod 408 is movably connected to the auxiliary frame 411. Two insertion holes 410 are provided on both ends of the support frame 407 at the positions corresponding to the auxiliary frame 411. The inner wall of the insertion hole 410 is inserted into the arc surface of the auxiliary frame 411. The surface of the auxiliary frame 411 abuts against one side of the extrusion shaft 412. In the embodiments of this utility model, please refer to Figure 4 and Figure 5 The auxiliary device 5 includes a slide 53, which is formed on the surface of the support frame 403. The inner walls of the slide 53 are slidably connected to both ends of the slide rod 54. The upper surface of the slide rod 54 is fixedly connected to the connecting block 51. The side surface of the support frame 403 is fixedly connected to the slide rail 52. The surface of the slide rail 52 is slidably connected to the inner wall of the connecting block 51. The side surface of the connecting block 51 is threaded with a fixed shaft 55. One end of the fixed shaft 55 abuts against the surface of the slide rail 52. The four connecting blocks 51 are arranged in pairs. The side of each pair of connecting blocks 51 that is close to each other abuts against the side surface of the foot pedal 2. The side of each pair of connecting blocks 51 that is close to each other is provided with an inlay groove 56. The inner wall of the inlay groove 56 is engaged with the side surface of the foot pedal 2. The lower surface of the foot pedal 2 is fixedly connected to both sides of the foot pedal 2. The side of the two baffles 57 that are close to each other is engaged with the surface of the support frame 403. The working principle of the prefabricated triangular steel cantilever scaffold provided by this utility model is as follows: First, the mounting frame 3 is firmly fixed to the building wall panel 1 with screws and nuts, forming a connection foundation with the main structure. Then, the two ends of the support frame 407 are respectively inserted into the positioning rods 408 on the mounting frame 3 and the bearing frame 403, and locked and fixed by rotating the compression shaft 412. Since the cross-section of the support frame 407 is inclined, it, together with the mounting frame 3 and the bearing frame 403, constitutes a stable triangular load-bearing structure. This main triangle effectively transmits and decomposes the vertical load and overturning moment borne by the scaffolding platform into pressure on the wall panel 1 and tension on the embedded parts, ensuring the fundamental stability of the entire cantilever system. When it is necessary to adjust the cantilever distance of the platform, the operator only needs to rotate the drive shaft 404. The drive shaft 404 has threads with opposite directions. When it rotates, it will drive the two positioning frames 406 to move synchronously towards or away from each other under the constraint of the guide rod 405. The movement of the positioning frame 406 will push or pull the side plate 402 that is inserted with it, thereby pushing or pulling the bearing frame 403 out of the adjustment frame 401. During this process, the guide rod 405 ensures the linear movement of the positioning frame 406 and prevents jamming. After the support frame 403 is adjusted to the predetermined position, the foot pedal 2 is laid on the upper surface of the two support frames 403. Then, the foot pedal 2 is firmly fixed by the auxiliary device 5: the sliding connecting block 51 is slidably connected so that the inlay groove 56 on it is tightly locked into the side wall of the foot pedal 2. Then the fixing shaft 55 is tightened so that the connecting block 51 is firmly locked onto the support frame 403 through the slide rail 52 and the slide rod 54. At the same time, the baffles 57 on both sides of the lower surface of the foot pedal 2 will naturally be locked into the edge of the support frame 403 to form a longitudinal limit. This three-dimensional limiting system formed by the lateral locking of the connecting block 51, the longitudinal constraint of the baffle 57, and the support of the surface of the support frame 403 ensures that the foot pedal 2 will not move, slip or lift in any direction during use, which greatly improves the safety and integrity of the work platform.

[0028] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fabricated triangular steel cantilevered scaffold, characterized in that, include: A wall panel (1) has a mounting frame (3) installed on its surface using screws and nuts. A foot pedal (2) is provided on the surface of the mounting frame (3). Adjustment devices (4) are provided on both sides of the surface of the mounting frame (3). The adjustment device (4) includes an adjustment frame (401) and a support frame (407). One side of the adjustment frame (401) is fixedly connected to the surface of the mounting frame (3). A bearing frame (403) is inserted into the inner wall of the adjustment frame (401). The bearing frame (403) is close to the adjustment frame. A drive shaft (404) is rotatably connected to the inner wall of one end of the frame (401). The two ends of the arc surface of the drive shaft (404) are provided with threads in opposite directions. The two ends of the arc surface of the drive shaft (404) are threaded through the positioning frame (406). The two sides of the adjustment frame (401) are fixedly connected with side plates (402). The inner wall of the positioning frame (406) is inserted into the surface of the side plate (402). The surface of the foot pedal (2) abuts against the upper surfaces of the two support frames (403).

2. The assembled triangular steel cantilevered scaffold of claim 1, wherein, A guide rod (405) is fixedly connected to the inner wall surface of one end of the support frame (403) near the adjustment frame (401), and the arc surface of the guide rod (405) slides through the surface of the positioning frame (406).

3. The assembled triangular steel cantilevered scaffold of claim 1, wherein, The support frame (407) has positioning grooves (409) on both ends of its surface. The mounting frame (3) and the bearing frame (403) are fixedly connected with positioning rods (408) at the positions corresponding to the positioning grooves (409). The arc surface of the positioning rod (408) is inserted into the inner wall of the positioning groove (409). The arc surface of the positioning rod (408) is threadedly connected to the extrusion shaft (412). The cross section of the support frame (407) is inclined.

4. The assembled triangular steel cantilevered scaffold of claim 3, wherein, The positioning rod (408) is movably connected to the auxiliary frame (411) on its arc surface. The support frame (407) has two insertion holes (410) on its two end surfaces corresponding to the positions of the auxiliary frame (411). The inner wall of the insertion hole (410) is inserted into the arc surface of the auxiliary frame (411), and the surface of the auxiliary frame (411) abuts against one side of the extrusion shaft (412).

5. The assembled triangular steel cantilevered scaffold of claim 1, wherein, The surface of the support frame (403) is provided with an auxiliary device (5), the auxiliary device (5) includes a slide groove (53), the slide groove (53) is opened on the surface of the support frame (403), the two ends of the inner wall of the slide groove (53) are slidably connected to a slide rod (54), the upper surface of the slide rod (54) is fixedly connected to a connecting block (51), one side surface of the support frame (403) is fixedly connected to a slide rail (52), the surface of the slide rail (52) is slidably connected to the inner wall of the connecting block (51), the side wall surface of the connecting block (51) is threaded through a fixed shaft (55), one end of the fixed shaft (55) abuts against the surface of the slide rail (52), the four connecting blocks (51) are in groups of two, and the side of each group of connecting blocks (51) that is close to each other abuts against the side wall surface of the foot pedal (2).

6. The assembled triangular steel cantilevered scaffold of claim 5, wherein, Each set of connecting blocks (51) has an inlay groove (56) on one side close to each other, and the inner wall of the inlay groove (56) is engaged with the side wall surface of the foot pedal (2).

7. A prefabricated triangular steel cantilever scaffold according to claim 5, characterized in that, Both sides of the lower surface of the foot pedal (2) are fixedly connected with baffles (57), and the side of the two baffles (57) that are close to each other is engaged with the surface of the support frame (403).

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