Steel-aluminum mixed light environment-friendly attached type lifting scaffold

Abstract

This utility model belongs to the field of attached lifting scaffolding, specifically relating to a steel-aluminum hybrid lightweight and environmentally friendly attached lifting scaffolding; it includes uprights, footboards, guide rails, and wall-mounted anti-fall supports. The uprights and footboards are spliced ​​together to form a frame structure; connecting plates are installed at the connection nodes between the uprights and footboards, and adjacent connecting plates are continuously connected by inclined braces; the inner and outer uprights are rigidly connected by triangular supports and diagonal chords; protective netting is fixed between adjacent outer uprights; the wall-mounted anti-fall supports are fixed to the main structure, and the uprights at the positions of the wall-mounted anti-fall supports are converted into guide rails, which are slidably assembled onto the wall-mounted anti-fall supports; the frame structure is provided with upper and lower lifting points, with an electric hoist suspended from the upper lifting point. The hoist chain is reversed via a guide wheel assembly on the lower lifting point and connected to a lifting bracket on the main structure; this design solves the shortcomings of traditional steel-aluminum hybrid climbing scaffolding in terms of safety, overall rigidity and stability, lightweight, energy saving, and environmental protection.

Description

Technical Field

[0001] This utility model belongs to the field of attached lifting scaffolding, specifically relating to a steel-aluminum hybrid lightweight and environmentally friendly attached lifting scaffolding. Background Technology

[0002] Attached lifting scaffolding, as a new type of scaffolding system, has been widely used in modern construction due to its advantages such as high efficiency, convenience, and economy. It can gradually rise or fall with the construction progress of the building structure, providing construction workers with a stable and reliable working platform, greatly improving construction efficiency and safety. In the construction of high-rise and super high-rise buildings, attached lifting scaffolding plays an irreplaceable role, effectively solving the problems of difficult erection, long construction period, and high cost associated with traditional scaffolding.

[0003] While the mainstream all-steel attached lifting scaffolding on the market currently boasts good structural strength, its significant weight results in a high load on the main building structure. To reduce weight, the industry has gradually developed climbing scaffolding structures combining aluminum alloy and steel. By introducing aluminum alloy, the overall weight is reduced, minimizing the impact on the building structure, and particularly preventing the scaffolding from damaging the concrete due to insufficient curing time. However, the strength of aluminum alloy materials (such as 6061-T6) still falls short of that of steel, making the safety of steel-aluminum combined climbing scaffolding a key challenge. Utility Model Content

[0004] This invention aims to address the issue of insufficient safety improvement in steel-aluminum composite climbing scaffolds.

[0005] This utility model provides the following technical solution: a steel-aluminum hybrid lightweight environmentally friendly attached lifting scaffold, including uprights, footboards, guide rails and wall-mounted anti-fall supports, the uprights and footboards are spliced ​​together to form a frame structure; connecting plates are installed at the connection nodes of the uprights and footboards, and the left and right adjacent connecting plates are continuously connected by inclined braces to form a closed-loop support structure;

[0006] The inner and outer uprights are rigidly connected by triangular supports and diagonal chords; protective netting is fixed between adjacent uprights on the outer side; the wall-mounted anti-fall support is fixed to the main structure, and the upright at the position of the wall-mounted anti-fall support is converted into a guide rail, which is slidably assembled on the wall-mounted anti-fall support.

[0007] The frame structure has upper and lower lifting points. An electric hoist is suspended on the upper lifting point. The hoist chain is reversed by the guide wheel set on the lower lifting point and then connected to the lifting bracket on the main structure.

[0008] Furthermore, the wall-mounted anti-fall support includes an attachment support, a load-relieving support, an anti-fall device, and a guide wheel assembly. The attachment support is fixed to the main structure by through-wall bolts. The guide wheel assembly is fixed on the attachment support and slides and clamps on the guide rail. The lower end of the load-relieving support is hinged to the attachment support, and the upper end can obliquely support the force fulcrum of the guide rail. The anti-fall device includes a triggering swing block and an anti-fall stop block. The triggering swing block and the anti-fall stop block are coaxially hinged to the attachment support. A counterweight is provided on the anti-fall stop block below the hinge axis. The counterweight causes the upper end of the anti-fall stop block to lift away from the guide rail. The front end of the triggering swing block touches the force fulcrum of the guide rail. The impact of the guide rail falling sharply is transmitted to the anti-fall stop block through the triggering swing block. The upper end of the anti-fall stop block stops the guide rail by locking the force fulcrum of the guide rail.

[0009] Furthermore, the unloading support includes a top head, a support screw, and an end connection; the upper and lower threads of the support screw are respectively screwed into the screw holes on the top head and the end connection, and the upper and lower threads of the support screw have opposite directions of rotation; the end connection is hinged to the attachment support, and the top head is used to support the force fulcrum of the guide rail.

[0010] Furthermore, the attachment support includes a crossbeam, a back plate, and diagonal braces; two crossbeams are vertically welded to the back plate at intervals in the middle, and diagonal braces are connected between the crossbeams and the back plate. Each end of the two crossbeams is equipped with a guide wheel assembly, and the unloading support and fall arrestor are located between the two crossbeams.

[0011] Furthermore, the guide rail is an aluminum alloy component, which includes a top plate, a bottom plate, and two web plates in the middle. The two web plates form a sliding groove at the inner ends of the top plate and the bottom plate to slide and engage with the guide wheel of the wall-mounted anti-fall support. The top plate has a fall-stop square hole in the area between the two web plates, which serves as a force-bearing fulcrum. The bottom plate has bolt holes in the area between the two web plates.

[0012] Furthermore, anti-tilt tie rods connect the inner uprights to the main structure.

[0013] Furthermore, the triggering pendulum is provided with a reset boss. The triggering pendulum swings upward until the reset boss touches the anti-fall block, causing the triggering pendulum to fall back.

[0014] Furthermore, the uprights, scaffold boards, connecting plates, and inclined braces are aluminum alloy components.

[0015] Furthermore, the top includes a backrest, a support base, and an anti-disengagement hook.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] This utility model provides a lightweight and environmentally friendly steel-aluminum hybrid attached lifting scaffold. The connecting plates at the joints between the uprights and the scaffold boards are continuously connected by inclined braces to form a closed-loop support structure. The inner and outer uprights are rigidly connected by triangular supports and diagonal chords, making the scaffold frame a unified force-bearing system, distributing the load transmission path, and improving the overall deformation resistance of the aluminum alloy scaffold. The core components, such as the uprights, scaffold boards, connecting plates, inclined braces, and guide rails, are made of aluminum alloy, significantly reducing weight compared to traditional steel components, lowering the load pressure on the main structure. Furthermore, aluminum alloy is recyclable, meeting environmental protection requirements, and reducing energy consumption during component transportation and installation.

[0018] The fall arrestor adopts a pendulum-type mechanical structure, utilizing a center-of-gravity offset design for rapid triggering. Compared to traditional rotary wheel devices, it offers significant advantages in terms of simpler structure and higher reliability. Through the coordination of the triggering pendulum and the fall arrestor block, the fall arrestor can respond quickly in the event of a sudden drop in the guide rail. Using a counterweight and force transmission mechanism, the fall arrestor block engages the force-bearing fulcrum of the guide rail, achieving emergency stopping and effectively preventing the scaffold from falling, thus significantly improving the construction safety factor. Attached Figure Description

[0019] Figure 1 A schematic diagram of a lightweight and environmentally friendly steel-aluminum hybrid attached lifting scaffold;

[0020] Figure 2 This is a schematic diagram of the protective mesh panel;

[0021] Figure 3 This is a schematic diagram of the lifting drive system;

[0022] Figure 4 A schematic diagram of a wall-mounted fall arrestor;

[0023] Figure 5 This is a schematic diagram of the unloading support;

[0024] Figure 6 This is a schematic diagram of the first state of the fall arrestor.

[0025] Figure 7 This is a schematic diagram of a fall arrestor.

[0026] Figure 8 This is a schematic diagram of the second state of the fall arrestor;

[0027] Figure 9 This is a schematic diagram of the third state of the fall arrestor.

[0028] Figure 10 This is a schematic diagram of the attachment support;

[0029] Figure 11 This is a schematic diagram of the guide rail.

[0030] In the diagram: 1-Upright pole; 2-Scaffold board; 3-Triangular support; 4-Diagonal chord; 5-Safety netting; 6-Inclined diagonal brace; 7-Connecting plate; 8-Wall-attached anti-fall support; 8.1-Attachment support; 8.1.1-Horizontal beam; 8.1.2-Back plate; 8.1.3-Diagonal brace; 8.2-Unloading support; 8.2.1-Top; 8.2.1.1-Backrest; 8.2.1.2-Support base plate; 8.2.1.3-Anti-disengagement hook; 8.2. 2-Support screw; 8.2.3-End connection; 8.3-Anti-fall device; 8.3.1-Trigger swing block; 8.3.2-Anti-fall stop block; 8.3.3-Reset boss; 8.4-Guide wheel assembly; 9-Guide rail; 9.1-Top plate; 9.2-Bottom plate; 9.3-Web plate; 9.4-Anti-fall square hole; 10-Upper lifting point; 11-Lower lifting point; 12-Electric hoist; 13-Lifting bracket; 14-Anti-tilt rod; 15-Main structure. Detailed Implementation

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] like Figure 1 , Figure 2 , Figure 3 As shown: A lightweight and environmentally friendly steel-aluminum hybrid attached lifting scaffold includes uprights 1, footboards 2, guide rails 9, and wall-mounted anti-fall supports 8. The uprights 1 and footboards 2 are spliced ​​to form a frame structure. The footboards 2 have a hollow rectangular cross section and a 0.5mm deep diamond-shaped anti-slip groove rolled on the top surface. The footboards 2 are connected to the uprights 1 by screws. A connecting plate 7 is installed at the connection node between the uprights 1 and the footboards 2. The left and right adjacent connecting plates 7 are continuously connected by inclined diagonal braces 6 to form a closed-loop support structure, which enhances the overall stability.

[0033] The inner and outer uprights 1 are rigidly connected by triangular supports 3 and diagonal chords 4 to enhance lateral stiffness; protective netting 5 is fixed between adjacent uprights 1 on the outer side to form a fully enclosed facade protection; the wall-mounted anti-fall support 8 is fixed to the main structure, and the upright 1 at the position of the wall-mounted anti-fall support 8 is converted into a guide rail 9, which is slidably assembled on the wall-mounted anti-fall support 8.

[0034] The frame structure has an upper lifting point 10 and a lower lifting point 11. The upper lifting point 10 is located at the 5th step of the frame, and the lower lifting point 11 is located at the 1st step. An electric hoist 12 is suspended from the upper lifting point 10. The hoist chain of the electric hoist 12 is reversed by the guide wheel assembly on the lower lifting point 11 and then connected to the lifting bracket 13 on the main structure, forming a stable three-point lifting structure. When the electric hoist 12 tightens the hoist chain, the hoist chain between the lower lifting point 11 and the lifting bracket 13... As the chain shortens and the frame is lifted, the electric hoist 12 releases the hoist chain. The hoist chain between the lower suspension point 11 and the lifting bracket 13 is extended, and the frame moves downward. During the upward and downward movement of the frame, the length of the hoist chain between the upper suspension point 10 and the lower suspension point 11 remains unchanged. This structure is equivalent to transferring the upper suspension point 10 to the lower suspension point 11, so that the electric hoist 12 is in an upright position when in use. Moreover, the electric hoist 12 is vertical and not inclined, which facilitates operation.

[0035] The inner upright 1 is connected to the main structure by an anti-tilting tie rod 14, forming a double anti-tilting support, which effectively restrains the displacement of the frame and prevents the risk of overturning caused by wind or eccentric load.

[0036] Upright pole 1, scaffold board 2, connecting plate 7, and inclined brace 6 are aluminum alloy components, which combine lightweight and high strength (60% lighter than traditional steel frame) with non-combustible properties, meeting the fire prevention requirements of the construction site.

[0037] like Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9As shown: The wall-mounted fall arrestor 8 includes an attachment support 8.1, a load-bearing support 8.2, a fall arrestor 8.3, and a guide wheel assembly 8.4. The attachment support 8.1 is fixed to the main structure by through-wall bolts. The guide wheel assembly 8.4 is fixed to the attachment support 8.1 and slides on the guide rail 9, limiting the scaffold frame to vertical lifting only. The lower end of the load-bearing support 8.2 is hinged to the attachment support 8.1, and the upper end can obliquely support the force-bearing point of the guide rail 9. After the electric hoist 12 unloads the load, the load-bearing support 8.2 can actively obliquely support the force-bearing point of the guide rail 9, transferring the load of the scaffold frame to the attachment support 8.1 and the main structure more stably. The fall arrestor 8.3 can automatically lock the guide rail 9 when the lifting system fails. The scaffolding structure directly bears the load of the scaffolding frame to the building structure. The fall arrestor 8.3 includes a triggering swing block 8.3.1 and a fall arrestor block 8.3.2. The triggering swing block 8.3.1 and the fall arrestor block 8.3.2 are coaxially hinged to the attachment support 8.1. A counterweight is provided on the fall arrestor block 8.3.2 below the hinge axis. The counterweight causes the upper end of the fall arrestor block 8.3.2 to lift away from the guide rail 9. The front end of the triggering swing block 8.3.1 touches the force support point of the guide rail 9. The impact of the guide rail 9 falling suddenly is transmitted to the fall arrestor block 8.3.2 through the triggering swing block 8.3.1. The fall arrestor block 8.3.2 swings downward and stops at the attachment support 8.1 at the lower end. The upper end of the fall arrestor block 8.3.2 stops the guide rail 9 by locking the force support point of the guide rail 9.

[0038] Under normal operating conditions, the guide rail 9 is raised normally along with the scaffold body, such as... Figure 9 As shown, when the guide rail 9 rises, the force fulcrum on the guide rail 9 pushes the triggering pendulum block 8.3.1 upwards. After the force fulcrum passes the triggering pendulum block 8.3.1, it falls back; the triggering pendulum block 8.3.1 forms a gravity-sensitive structure. Figure 8 As shown: When the frame falls, the force support point on the guide rail 9 violently impacts the triggering block 8.3.1. The triggering block 8.3.1 swings downward under the action of inertia, which drives the anti-fall stop block 8.3.2 to swing downward, so that it quickly engages with the force support point of the guide rail to achieve braking.

[0039] The trigger swing block 8.3.1 is equipped with a reset boss 8.3.3. When the trigger swing block 8.3.1 swings upward until the reset boss 8.3.3 touches the anti-fall stop 8.3.2, it causes the trigger swing block 8.3.1 to fall back. The design of the reset boss 8.3.3 on the trigger swing block 8.3.1 allows it to automatically collide with the anti-fall stop 8.3.2 during normal lifting, causing it to fall back and reset without additional operation, ensuring that the anti-fall function is ready for the next operation.

[0040] like Figure 5As shown: The unloading support 8.2 includes a top head 8.2.1, a support screw 8.2.2, and an end connection 8.2.3; the upper and lower threads of the support screw 8.2.2 are respectively screwed into the screw holes on the top head 8.2.1 and the end connection 8.2.3, and the upper and lower threads of the support screw 8.2.2 have opposite directions of rotation. The top head 8.2.1, the support screw 8.2.2, and the end connection 8.2.3 form a whole whose length can be freely adjusted. The bidirectional reverse thread design of the support screw makes the top head telescopic adjustment (tightening or loosening the guide rail) simple and efficient; the end connection 8.2.3 is hinged to the attachment support 8.1, and the top head 8.2.1 is used to support the force fulcrum of the guide rail 9.

[0041] The top head 8.2.1 includes a backrest 8.2.1.1, a support base plate 8.2.1.2, and an anti-disengagement hook 8.2.1.3. The backrest 8.2.1.1 and the anti-disengagement hook 8.2.1.3 form front and rear limits to prevent the top head 8.2.1 from slipping off the guide rail 9.

[0042] like Figure 10 As shown: The attachment support 8.1 includes a crossbeam 8.1.1, a back plate 8.1.2, and a diagonal brace 8.1.3. Two crossbeams 8.1.1 are vertically welded to the back plate 8.1.2 at an interval in the middle. The diagonal brace 8.1.3 connects the crossbeams 8.1.1 and the back plate 8.1.2. Each end of the two crossbeams 8.1.1 is equipped with a guide wheel assembly 8.4. The unloading support 8.2 and the fall arrestor 8.3 are located between the two crossbeams 8.1.1. The attachment support 8.1 adopts a welded structure of crossbeam + back plate + diagonal brace, which ensures the rigidity of the attachment support 8.1 itself and can effectively transfer and distribute the load.

[0043] like Figure 11 As shown: The guide rail 9 is an aluminum alloy component, which is integrally processed by extrusion molding. The guide rail 9 includes a top plate 9.1, a bottom plate 9.2, and two web plates 9.3 in the middle. The two web plates form a sliding groove at the two ends of the top plate 9.1 and the bottom plate 9.2 that slides and engages with the guide wheel of the wall-mounted anti-fall support 8. The top plate 9.1 has a fall-stop square hole 9.4 in the area between the two web plates 9.3. The fall-stop square hole 9.4 serves as a force-bearing fulcrum. The bottom plate 9.2 has bolt holes in the area between the two web plates 9.3. The cross-section of the guide rail 9 is specially designed to reduce the amount of material used while ensuring load-bearing capacity.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lightweight and environmentally friendly steel-aluminum hybrid attached lifting scaffold, characterized in that: It includes uprights (1), scaffold boards (2), guide rails (9) and wall-mounted anti-fall supports (8). Uprights (1) and scaffold boards (2) are spliced ​​together to form a frame structure. Connecting plates (7) are installed at the connection nodes of uprights (1) and scaffold boards (2). The left and right adjacent connecting plates (7) are continuously connected by inclined bars (6) to form a closed-loop support structure. The inner and outer uprights (1) are rigidly connected by triangular supports (3) and diagonal chords (4); protective netting (5) is fixed between adjacent uprights (1) on the outer side; the wall-mounted anti-fall support (8) is fixed to the main structure, and the uprights (1) at the position of the wall-mounted anti-fall support (8) are converted into guide rails (9), and the guide rails (9) are slidably assembled on the wall-mounted anti-fall support (8). The frame is equipped with an upper suspension point (10) and a lower suspension point (11). An electric hoist (12) is suspended on the upper suspension point (10). The hoist chain of the electric hoist (12) is connected to the lifting bracket (13) on the main structure after the guide wheel group on the lower suspension point (11) is reversed.

2. The steel-aluminum hybrid light environment-friendly attached type lifting scaffold according to claim 1, characterized in that: The wall-mounted anti-fall support (8) includes an attachment support (8.1), a load-bearing support (8.2), an anti-fall device (8.3), and a guide wheel assembly (8.4); the attachment support (8.1) is fixed to the main structure by a through-wall bolt; the guide wheel assembly (8.4) is fixed on the attachment support (8.1), and the guide wheel assembly (8.4) is slidably clamped on the guide rail (9); the lower end of the load-bearing support (8.2) is hinged to the attachment support (8.1), and the upper end can be obliquely supported on the force fulcrum of the guide rail (9); the anti-fall device (8.3) includes a trigger swing block (8.3.1) and an anti-fall stop block (8.3). 3.2) The triggering block (8.3.1) and the anti-fall block (8.3.2) are coaxially hinged to the attachment support (8.1). The anti-fall block (8.3.2) is provided with a counterweight below the hinge axis. The counterweight causes the upper end of the anti-fall block (8.3.2) to lift away from the guide rail (9). The front end of the triggering block (8.3.1) touches the force support point of the guide rail (9). The impact of the guide rail (9) falling sharply is transmitted to the anti-fall block (8.3.2) through the triggering block (8.3.1). The upper end of the anti-fall block (8.3.2) stops the guide rail (9) by locking the force support point of the guide rail (9).

3. The steel-aluminum hybrid light environment-friendly attached type lifting scaffold of claim 2, wherein: The unloading support (8.2) includes a top head (8.2.1), a support screw (8.2.2), and an end connection (8.2.3); the upper and lower threads of the support screw (8.2.2) are respectively screwed into the screw holes on the top head (8.2.1) and the end connection (8.2.3), and the upper and lower threads of the support screw (8.2.2) are in opposite directions; the end connection (8.2.3) is hinged to the attachment support (8.1), and the top head (8.2.1) is used to support the guide rail (9) at the force fulcrum.

4. The steel-aluminum hybrid light environment-friendly attached type lifting scaffold according to claim 2 or 3, characterized in that: The aforementioned attachment support ( 8.1) Includes a crossbeam (8.1.1), a back plate (8.1.2), and a diagonal brace (8.1.3); two crossbeams (8.1.1) are welded vertically to the back plate (8.1.2) at intervals in the middle, and the diagonal brace (8.1.3) is connected between the crossbeam (8.1.1) and the back plate (8.1.2). Each end of the two crossbeams (8.1.1) is equipped with a guide wheel assembly (8.4), and the unloading support (8.2) and the fall arrestor (8.3) are located between the two crossbeams (8.1.1).

5. The steel-aluminum hybrid light environment-friendly attached type lifting scaffold of claim 2, wherein: The guide rail (9) is an aluminum alloy component. The guide rail (9) includes a top plate (9.1), a bottom plate (9.2) and two web plates (9.3) in the middle. The two web plates form a sliding groove at the two ends of the top plate (9.1) and the bottom plate (9.2) that slides and engages with the guide wheel of the wall-mounted anti-fall support (8). The top plate (9.1) has a falling square hole (9.4) in the area between the two web plates (9.3). The falling square hole (9.4) serves as a force support point. The bottom plate (9.2) has a bolt hole in the area between the two web plates (9.3).

6. The steel-aluminum hybrid light environment-friendly attached type lifting scaffold of claim 1, wherein: An anti-tilting tie rod (14) is connected between the inner upright (1) and the main structure.

7. The steel-aluminum hybrid light environment-friendly attached type lifting scaffold of claim 2, wherein: The triggering pendulum (8.3.1) is provided with a reset boss (8.3.3). The triggering pendulum (8.3.1) swings upward until the reset boss (8.3.3) touches the anti-fall block (8.3.2), causing the triggering pendulum (8.3.1) to fall back.

8. The steel-aluminum hybrid light environment-friendly attached type lifting scaffold of claim 1, wherein: The uprights (1), scaffold boards (2), connecting plates (7) and inclined braces (6) are aluminum alloy components.

9. The steel-aluminum hybrid light environment-friendly attached type lifting scaffold of claim 3, characterized in that: The top (8.2.1) includes a backrest (8.2.1.1), a support base plate (8.2.1.2), and an anti-disengagement hook (8.2.1.3).

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