Scaffold tieback device

Abstract

The utility model discloses a scaffold tie -up device relates to scaffold tie -up technical field, and the technical scheme is, including fixed base and connecting piece, fixed base includes bottom plate and sets up the lower lug board of bottom plate upper surface, and connecting piece includes connecting rod and sets up the upper lug board of connecting rod one end, and one end of tie -up device is fixed on the border beam through the expansion bolt, and the other end is connected with the inner throw support through a plurality of fasteners, and the inner throw support is connected into the whole with the outer scaffold again, thereby tie -up the outer scaffold to the building structure. The utility model has the beneficial effects that: the present scheme provides a novel scaffold tie -up device to solve the problem that steel pipe wall connecting piece and outer scaffold connection are easy to come off. Adopt the mode that fixed base, connecting piece, inner throw support are combined, and the fixed base is fixed with expansion bolt, and the fixed base and connecting piece adopt nut fixed, and can realize free rotation, and connecting piece and inner throw support adopt fastener tie -up, and the stability of tie -up is increased.

Description

Technical Field

[0001] This utility model relates to the field of scaffolding tying technology, and in particular to a scaffolding tying device. Background Technology

[0002] During the main construction process, external scaffolding needs to be erected around the structure to provide working platforms and fall protection at nearby edges. According to regulations, the bottom layer of the external scaffolding must be equipped with external bracing and tie points to prevent overturning. A commonly used method in engineering is to pre-embed steel pipe wall ties before concrete pouring and then use swivel couplers and steel pipes to tie them to the external scaffolding. Because the wall ties are usually located at the edge beams, the angle between the steel pipes and the ground is usually greater than 60°, which does not meet the specifications. In strong winds or under heavy loads, the external scaffolding is prone to detaching from the wall ties, leading to safety accidents.

[0003] Currently, the following methods are generally used to address the issue of scaffolding ties easily loosening during construction:

[0004] (1) Install clamps (steel pipes or steel strips) on the frame columns and connect them to the scaffolding with fasteners or bolts. However, the clamping of the columns may affect the later curtain wall or decoration construction, and it has great limitations. It is only applicable to frame columns and cannot be used on shear wall structures.

[0005] (2) Double pre-embedded double fasteners are used for fixing, and torque wrench is used to ensure torque (40~65N·m). However, this will increase material costs, and the pre-embedded steel pipes cannot be recycled in the later stage, increasing construction waste.

[0006] Furthermore, embedded steel pipes are prone to displacement or tilting during concrete pouring, leading to inaccurate final scaffolding tie-down points and affecting connection reliability. Traditional coupler connections are susceptible to bolt loosening under long-term dynamic loads (such as wind loads and construction loads), and individual couplers have limited torsional resistance, making them prone to slippage or loosening. This stability issue is particularly pronounced when the connection angle is not ideal (e.g., too large or too small). All these factors increase the risk of overall scaffolding instability.

[0007] How to solve the above problems is the research topic of this plan. Utility Model Content

[0008] In order to achieve the above-mentioned objectives and address the above-mentioned technical problems, this utility model provides a scaffolding tying device.

[0009] The technical solution includes a fixed base and connectors;

[0010] The fixed base includes a base plate and a lower ear plate disposed on the upper surface of the base plate;

[0011] The connector includes a connecting rod and an upper ear plate disposed at one end of the connecting rod;

[0012] One end of the tying device is fixed to the side beam with expansion bolts, and the other end is connected to the inner bracing with several fasteners. The inner bracing is then connected to the outer scaffolding to form a whole, thereby tying the outer scaffolding to the building structure.

[0013] The base plate is made of steel plate and has several through holes. The base plate is fixed to the side beam by expansion bolts.

[0014] The lower ear plate is fixedly installed in the middle of the upper surface of the base plate;

[0015] The connecting rod is made of steel pipe.

[0016] The upper ear plate and the lower ear plate are fixedly connected by bolts.

[0017] The fastener is provided in three parts;

[0018] The fastener includes two fixedly connected ring clamps, one end of which is open. Each opening is provided with a set of connecting ear plates, and each set of connecting ear plates is fixedly connected to the other by bolts.

[0019] One of the fastener's annular clamps is fitted onto the outer wall of the inner support, and the other annular clamp is fitted onto the outer wall of the connecting rod.

[0020] The connecting rod includes a lower connecting rod, an upper connecting rod, and a connecting sleeve that fixes the lower connecting rod and the upper connecting rod together.

[0021] The lower connecting rod, the upper connecting rod, and the connecting sleeve are all provided with several evenly distributed threaded holes. The two ends of the connecting sleeve are fixedly connected to the lower connecting rod and the upper connecting rod by bolts, respectively.

[0022] Reinforcing components are installed between adjacent connecting rods;

[0023] The reinforcement assembly includes two horizontal inner rods and a horizontal outer rod connecting the two horizontal inner rods, with a fixing clamp at the end of each horizontal inner rod;

[0024] The fixing clamp includes a semi-circular clamp plate one and a semi-circular clamp plate two. Both ends of the semi-circular clamp plate one and the semi-circular clamp plate two are provided with connecting ear plates two. The connecting ear plates two of the semi-circular clamp plate one and the semi-circular clamp plate two are fixedly connected by bolts.

[0025] One end of the horizontal inner rod is fixedly provided with the semi-circular hoop plate;

[0026] Semi-circular hoop one and semi-circular hoop two are fixedly sleeved on the outer wall of the connecting rod;

[0027] The two ends of the horizontal outer rod are sleeved with the horizontal inner rod;

[0028] Several evenly distributed threaded holes are provided on both horizontal inner rods and the horizontal outer rod. The two ends of the horizontal outer rod are fixedly connected to the horizontal inner rods by bolts.

[0029] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This solution provides a novel scaffolding tying device to solve the problem of easy loosening of the connection between steel pipe wall ties and external scaffolding. It adopts a combination of a fixed base, connecting parts, and inner bracing. The fixed base is fixed with expansion bolts, and the fixed base and connecting parts are fixed with nuts, allowing for free rotation. The connecting parts and inner bracing are tied together with three fasteners, with a tying length ≥1m, increasing the stability of the tying.

[0030] The rigid base and hinged design ensure the stability of the tying device, and the tying angle is between 0° and 180°, which meets the specifications (tying angle is between 45° and 60°), avoiding the risk of loosening and improving safety.

[0031] The adjustable length design of the connecting rods significantly enhances the adaptability and versatility of the device to different field conditions. Optional reinforcement components between adjacent connecting rods effectively improve the stiffness and lateral stability of the entire bridging system.

[0032] It is suitable for frame structures and shear wall structures, and is not affected by subsequent curtain wall or decoration construction, making it widely applicable.

[0033] The tie-in system is recyclable, avoiding the need for many pre-embedded steel pipes, reducing construction waste and material waste. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0035] Figure 2 for Figure 1 A magnified view of part A.

[0036] Figure 3 This is a structural schematic diagram of the fastener in an embodiment of the present utility model.

[0037] Figure 4 This is a structural schematic diagram of the connecting rod in Embodiment 2 and the reinforcing component in Embodiment 3 of this utility model.

[0038] Figure 5 for Figure 4 A magnified view of part B.

[0039] The attached diagram is labeled as follows: 101, base plate; 102, lower ear plate; 201, connecting rod; 202, upper ear plate; 3, expansion bolt; 4, fastener; 5, inner brace;

[0040] 401. Ring clamp; 402. Connecting ear plate one;

[0041] 2011, Lower connecting rod; 2012, Upper connecting rod; 2013, Connecting sleeve;

[0042] 601. Horizontal inner rod; 602. Horizontal outer rod;

[0043] 6031. Semi-circular hoop plate one; 6032. Semi-circular hoop plate two; 6033. Connecting ear plate two. Detailed Implementation

[0044] 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. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.

[0045] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] Example 1

[0049] See Figures 1 to 3 This utility model provides a scaffolding tying device, including a fixed base and connectors;

[0050] The fixed base includes a base plate 101 and a lower ear plate 102 disposed on the upper surface of the base plate 101;

[0051] The connector includes a connecting rod 201 and an upper ear plate 202 disposed at one end of the connecting rod 201;

[0052] One end of the tying device is fixed to the side beam by expansion bolts 3, and the other end is connected to the inner bracing 5 by several fasteners 4. The inner bracing 5 is then connected to the outer scaffold to form a whole, thereby tying the outer scaffold to the building structure.

[0053] The base plate 101 is made of steel plate and has several through holes. The base plate 101 is fixed to the side beam by expansion bolts 3.

[0054] A lower ear plate 102 is fixedly installed in the middle of the upper surface of the base plate 101;

[0055] The connecting rod 201 is made of steel pipe.

[0056] The upper ear plate 202 and the lower ear plate 102 are fixedly connected by bolts.

[0057] There are three fasteners 4;

[0058] The fastener 4 includes two fixedly connected annular clamps 401. One end of each annular clamp 401 is open, and each opening is provided with a set of connecting ear plates 402. Each set of connecting ear plates 402 is fixedly connected to each other by bolts.

[0059] One ring clamp 401 of fastener 4 is fitted onto the outer wall of the inner brace 5, and the other ring clamp 401 is fitted onto the outer wall of the connecting rod 201.

[0060] Materials such as steel plates and expansion bolts should be inspected upon arrival at the site, and the thickness of the steel plates should meet the requirements.

[0061] Cut and drill holes in the steel plate according to the drawings; weld the finished base plate 101 to the lower ear plate 102.

[0062] Cut and drill holes in the upper ear plate according to the drawings; cut the connecting rod 201 and fully weld it to the upper ear plate 202 to form a connector. The material cutting size deviation is ±3mm; use bolts to connect the upper ear plate 202 and the lower ear plate 102 to form a tie system.

[0063] The ties are secured using expansion bolts to the edge beams. The connectors are hinged to the base, allowing free rotation. After rotating to a suitable angle, they are connected to the external scaffolding via couplers, with an overlap length ≥1m and at least 3 couplers at the overlap. The member angles are controlled between 45° and 60°. The stress on the ties is verified using calculation software based on actual site conditions to ensure the required ties are met.

[0064] The rigid base must ensure the thickness of the steel plate, with an error of ±0.5mm.

[0065] The weld height of the lower ear plate is greater than 3mm and the width is greater than 5mm.

[0066] The connector and the base plate are hinged to allow free rotation.

[0067] The entire bridging device needs to be calculated and verified: based on the welding standard of "Steel Structure Welding Code GB50661-2011", mechanical simulation is carried out in combination with a three-dimensional model.

[0068] Example 2

[0069] See Figures 4 to 5 Based on embodiment 1, the connecting rod 201 includes a lower connecting rod 2011, an upper connecting rod 2012, and a connecting sleeve 2013 that fixes the lower connecting rod 2011 and the upper connecting rod 2012 together.

[0070] The lower connecting rod 2011, the upper connecting rod 2012, and the connecting sleeve 2013 are all provided with several evenly distributed threaded holes. The two ends of the connecting sleeve 2013 are fixedly connected to the lower connecting rod 2011 and the upper connecting rod 2012 by bolts, respectively.

[0071] Through the ingenious design of the lower connecting rod 2011, the upper connecting rod 2012, and the connecting sleeve 2013, the overall length of the connecting rods can be flexibly adjusted. This structural advantage allows the tie-up device to precisely adapt to minor changes in the thickness of building exterior wall insulation layers, decorative surfaces, or structural boundaries, ensuring that the tie points are always in the optimal working position. This significantly improves the adaptability and versatility of the device to different engineering site conditions. The adjustment process is simple and quick, requiring only the tightening and loosening of bolts, greatly improving construction efficiency.

[0072] Example 3

[0073] See Figures 4 to 5 Based on embodiment 1, a reinforcing component is provided between adjacent connecting rods 201;

[0074] The reinforcement assembly includes two horizontal inner rods 601 and a horizontal outer rod 602 connecting the two horizontal inner rods 601. Each horizontal inner rod 601 has a fixing clamp at its end.

[0075] The fixing clamp includes a semi-circular clamp plate 1 6031 and a semi-circular clamp plate 2 6032. Both ends of the semi-circular clamp plate 1 6031 and the semi-circular clamp plate 2 6032 are provided with connecting ear plates 2 6033. The connecting ear plates 2 6033 of the semi-circular clamp plate 1 6031 and the semi-circular clamp plate 2 6032 are fixedly connected by bolts.

[0076] A semi-circular hoop plate 6031 is fixedly installed at one end of the horizontal inner rod 601;

[0077] Semi-annular hoop plate 6031 and semi-annular hoop plate 6032 are fixedly sleeved on the outer wall of connecting rod 201;

[0078] The two ends of the horizontal outer rod 602 are sleeved with the horizontal inner rod 601;

[0079] Several evenly distributed threaded holes are provided on the two horizontal inner rods 601 and the horizontal outer rod 602. The two ends of the horizontal outer rod 602 are fixedly connected to the horizontal inner rods 601 by bolts.

[0080] The reinforcement component securely connects adjacent connecting rods 201 horizontally using fixing clamps, and forms a rigid support structure with the adjustable-length horizontal inner rod 601 and the horizontal outer rod 602. This design effectively enhances the overall integrity and cooperative load-bearing capacity between adjacent tie points, significantly suppresses possible lateral displacement or torsion at individual tie points, and greatly improves the stiffness and lateral stability of the entire scaffolding tie system, making it particularly suitable for safety protection needs in ultra-high scaffolding or areas with strong winds. Its adjustable design also facilitates precise installation according to actual spacing.

[0081] Example 4

[0082] Based on Example 1, a high-strength nylon strip is used instead of a steel plate base and fixed by pre-embedded anchor bolts, but the durability is poor.

[0083] Example 5

[0084] Based on Example 1, magnetic connectors are used, but this method is only applicable to steel structures and has limited load-bearing capacity.

[0085] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A scaffolding tying device, characterized in that, Includes a fixed base and connectors; The fixed base includes a base plate (101) and a lower ear plate (102) disposed on the upper surface of the base plate (101). The connector includes a connecting rod (201) and an upper ear plate (202) disposed at one end of the connecting rod (201). One end of the tying device is fixed to the side beam by expansion bolts (3), and the other end is connected to the inner bracing (5) by several fasteners (4). The inner bracing (5) is then connected to the outer scaffold to form a whole, thereby tying the outer scaffold to the building structure.

2. The scaffolding tying device according to claim 1, characterized in that, The base plate (101) is made of steel plate, and several through holes are provided on the base plate (101). The base plate (101) is fixed to the side beam by expansion bolts (3). The lower ear plate (102) is fixedly installed in the middle of the upper surface of the base plate (101). The connecting rod (201) is made of steel pipe.

3. The scaffolding tying device according to claim 2, characterized in that, The upper ear plate (202) and the lower ear plate (102) are fixedly connected by bolts.

4. The scaffolding tying device according to claim 2, characterized in that, The fastener (4) is provided in three parts; The fastener (4) includes two fixedly connected ring clamps (401), one end of the two ring clamps (401) is open, and each opening is provided with a set of connecting ear plates (402), and each set of connecting ear plates (402) is fixedly connected by bolts.

5. The scaffolding tying device according to claim 4, characterized in that, One of the fasteners (4) is fitted onto the outer wall of the inner brace (5), and the other is fitted onto the outer wall of the connecting rod (201).

6. The scaffolding tying device according to claim 4, characterized in that, The connecting rod (201) includes a lower connecting rod (2011), an upper connecting rod (2012), and a connecting sleeve (2013) that fixes the lower connecting rod (2011) and the upper connecting rod (2012) together. The lower connecting rod (2011), the upper connecting rod (2012), and the connecting sleeve (2013) are all provided with a number of evenly distributed threaded holes. The two ends of the connecting sleeve (2013) are fixedly connected to the lower connecting rod (2011) and the upper connecting rod (2012) respectively by bolts.

7. The scaffolding tying device according to claim 4, characterized in that, A reinforcing assembly is provided between adjacent connecting rods (201); The reinforcement assembly includes two horizontal inner rods (601) and a horizontal outer rod (602) connecting the two horizontal inner rods (601), with a fixing clamp provided at the end of each horizontal inner rod (601). The fixing clamp includes a semi-circular clamp plate one (6031) and a semi-circular clamp plate two (6032). Both ends of the semi-circular clamp plate one (6031) and the semi-circular clamp plate two (6032) are provided with connecting ear plates two (6033). The connecting ear plates two (6033) of the semi-circular clamp plate one (6031) and the semi-circular clamp plate two (6032) are fixedly connected by bolts. One end of the horizontal inner rod (601) is fixedly provided with the semi-annular hoop plate (6031); The first semi-circular hoop (6031) and the second semi-circular hoop (6032) are fixedly sleeved on the outer wall of the connecting rod (201); The two ends of the horizontal outer rod (602) are sleeved with the horizontal inner rod (601); The two horizontal inner rods (601) and the horizontal outer rod (602) are each provided with several evenly distributed threaded holes. The two ends of the horizontal outer rod (602) are fixedly connected to the horizontal inner rods (601) by bolts.

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