A hanger plate device for a flower basket type cantilever steel beam

Abstract

The present application belongs to the technical field of building engineering, and particularly relates to a lug plate device for a flower basket type cantilever steel beam, which comprises: a main component, which is sleeved on the flower basket type cantilever steel beam; a lug plate, which is fixedly connected above the main component; and at least one adjusting and fastening mechanism, which is arranged on the main component and is used for detachably and adjustably fixing the main component and the lug plate on the steel beam in the length direction of the steel beam by applying clamping force to the steel beam. The present application solves the position conflict adjustment problem: when the lug plate position conflicts with a vertical rod or the like, the lug plate can be easily moved and adjusted in position by loosening the bolts without cutting and re-welding, and the operation is extremely convenient.

Description

Technical Field

[0001] This invention belongs to the field of building engineering technology, and specifically relates to a hanging lug plate device for a basket-type cantilever steel beam. Background Technology

[0002] Cantilevered scaffolding is a common type of scaffolding used in modern high-rise building construction. It typically consists of horizontal steel beams (usually I-beams) cantilevered outside the building structure, and upper basket-like tie rods connected to the steel beams via lifting lugs. The lifting lugs are key load-bearing components connecting the upper tie rods, and their installation accuracy and connection reliability on the steel beams are crucial to the safety of the entire scaffolding system.

[0003] Currently, in the construction of cantilevered scaffolding, the traditional method is to directly weld the lugs to the predetermined positions on the cantilevered I-beams. However, this method has significant drawbacks: First, during actual on-site construction, due to measurement errors, design changes, or coordination issues with other components (such as scaffolding uprights), the pre-welded lug positions often conflict with the precise positions required (e.g., with the scaffolding uprights). Second, once a positional conflict occurs and adjustments are needed, the only solution is to cut away the original weld and re-weld it in the new position. This process is not only time-consuming and labor-intensive, severely impacting the construction schedule, but also makes it difficult to guarantee welding quality under on-site conditions, posing safety hazards and increasing project costs and management difficulties. Furthermore, the fixed welding method makes it difficult to disassemble and reuse the lugs after the project is completed.

[0004] This invention aims to solve the following problems caused by the welding fixing method used for the steel beam suspension lugs of the flower basket cantilever scaffold in the prior art: the suspension lugs are difficult to adjust after being fixed in position; when they conflict with other components such as uprights, the adjustment process is complicated, time-consuming, and labor-intensive; when the suspension lugs are re-welded and adjusted on-site, the welding quality is difficult to guarantee, posing safety hazards; the adjustment process is inefficient, increasing construction costs and delaying the construction period; the welded suspension lugs are difficult to disassemble and recycle, making them unusable and resulting in material waste. Summary of the Invention

[0005] Purpose of the invention: The purpose of this invention is to address the shortcomings of existing technologies by providing a lug plate device for basket-type cantilever steel beams, which uses mechanical clamping to replace traditional welding fixation.

[0006] Technical solution: The hanging lug plate device for basket-type cantilever steel beams of the present invention includes:

[0007] The main component has a shape suitable for being fitted onto a basket-shaped cantilever steel beam;

[0008] A lifting lug plate, which is fixedly connected to the upper part of the main component;

[0009] At least one adjusting fastening mechanism is provided on the main body component for fixing the main body component and the hanging lug plate fixed thereon to the basket-shaped cantilever steel beam in a detachable and adjustable manner along the length of the steel beam by applying a clamping force to the basket-shaped cantilever steel beam.

[0010] To further refine the above technical solution, the main component is a square tube structure. The internal cavity of this square tube structure is designed to easily attach to the upper flange of the steel beam (usually an I-beam). For example, a square tube with dimensions of 150mm wide x 180mm high x 200mm long and a wall thickness of 8mm can be used. To improve durability and corrosion resistance, the main component can be galvanized, i.e., a galvanized square tube.

[0011] Furthermore, the adjusting and fastening mechanism includes at least two adjusting bolts disposed on opposite sidewalls of the main body component. Bolt holes are correspondingly provided on the sidewalls of the main body component, through which the adjusting bolts pass. By tightening the adjusting bolts, their ends can abut against specific locations on the steel beam (e.g., the web or inner side of the lower flange of the I-beam, depending on the design position of the square tube and the bolt holes), thereby generating sufficient clamping force to securely fix the entire device at a designated horizontal position on the steel beam.

[0012] Furthermore, a standard M16 bolt with a length of 90mm is used as the adjusting bolt. To increase the contact area and prevent loosening, the adjusting and fastening mechanism may also include a bolt washer that mates with the adjusting bolt, for example, a washer with an inner diameter of 17mm, an outer diameter of 29.5mm, and a thickness of 2.8mm.

[0013] Furthermore, the lifting lugs are pre-fixed to appropriate positions (e.g., top) of the main component in the factory or processing plant by welding to ensure connection strength and quality.

[0014] The present invention also provides a method for using the above-described apparatus, comprising the following steps:

[0015] First, mark the positioning points of the hanging lugs on the installed and reinforced steel beams of the flower basket cantilever frame according to the design requirements;

[0016] Then, the device of the present invention (the main component with the lifting lug) is fitted onto the positioning point of the steel beam; next, the planar position of the device is adjusted to ensure that the center of the lifting lug coincides with the positioning point or meets the predetermined requirements; subsequently, the adjustment and fastening mechanism is operated, for example, by tightening the adjusting bolts on the left and right sides of the main component, so that the device is firmly fixed to the steel beam by clamping force.

[0017] If fine-tuning is required to avoid interference with the uprights or to ensure precise coplanarity between the lifting lugs and the upper tie rod, the device can be precisely moved and re-secured along the length of the steel beam by loosening and retightening the adjusting bolts. Repeat the above installation steps at other positioning points on the steel beam. When the device is no longer in use at that location and needs to be removed, simply loosen the adjusting fastening mechanism (loosen the adjusting bolts) to easily remove the entire device from the steel beam. The removed device can be reused in other engineering locations or subsequent projects after necessary maintenance (e.g., applying light machine oil to the bolts).

[0018] Beneficial effects: Compared with the prior art, the advantages of the present invention are: (1) It solves the problem of position conflict adjustment: When the position of the hanging lug plate conflicts with the upright, etc., there is no need to cut and re-weld. The position can be easily moved and adjusted by simply loosening the bolts, which is extremely convenient; (2) It significantly improves construction efficiency: It greatly shortens the time for installation and adjustment of the hanging lug plate and speeds up the overall erection progress of the flower basket cantilever frame; (3) It ensures project quality and safety: It adopts mechanical clamping and fixing, which avoids the quality defects and safety hazards that may be caused by non-professional welding on site, and the connection is more standardized and reliable; (4) It realizes reusability and has good economic benefits: The device can be completely disassembled and reused, which significantly reduces the cost of single use, reduces material consumption, and meets the requirements of green construction and sustainable development; (5) It has a simple structure and is easy to operate: The device has a reasonable structural design and simple composition. On-site installation and adjustment only require tightening or loosening the bolts with a wrench, which has low requirements for the skills of the operators. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the planar structure of the device provided in Embodiment 1.

[0020] Figure 2 It is based on Figure 1 The cross-sectional diagram along the AA direction shows the device mounted on the I-beam.

[0021] Figure 3 This is a side elevation view of the device provided in Embodiment 1.

[0022] Explanation of reference numerals in the attached drawings: 1—galvanized square tube; 2—adjusting bolt; 3—bolt washer. Detailed Implementation

[0023] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.

[0024] Example 1: Refer to Figures 1 to 3The hanging lug plate device for the steel beam of the flower basket cantilever frame provided by the present invention mainly consists of a main component, an adjustment and fastening mechanism, and a hanging lug plate pre-fixed on the main component.

[0025] In this embodiment, the main component 1 is a galvanized square tube 1 of a specific size, with a wall thickness of 8mm, a width of 150mm, a height of 180mm, and a length of 200mm. This size design allows it to be easily "outer-fitted" or fitted onto the upper flange and part of the web of a common I-beam. Galvanizing enhances its weather resistance and rust prevention. Lifting lugs are typically fixed to the top or desired location of this galvanized square tube 1 by welding or other secure methods after processing, ensuring connection strength.

[0026] like Figure 2 As shown, the adjusting and fastening mechanism is installed on the main component 1, including adjusting bolts 2 and bolt washers 3. Specifically, bolt holes (e.g., 16mm diameter) are made on the two opposite side walls of the galvanized square tube 1 for the adjusting bolts 2 to pass through. The adjusting bolts 2 are standard M16*90 bolts. In use, the adjusting bolts 2 pass through the bolt holes and engage with the bolt washers 3. When the adjusting bolts 2 are tightened, pressure is applied to a specific part of the I-beam (e.g., ...) through the bolt washers 3. Figure 2 (Illustration: possibly the inner side of the web or lower flange) generates a strong clamping force, firmly locking the entire galvanized square tube 1 onto the I-beam. Two adjusting bolts 2 symmetrically positioned on the left and right sides ensure a balanced clamping force and stable fixation.

[0027] Example 2: The method of construction using the device provided in Example 1 is as follows:

[0028] (1) First, install and reinforce the steel beams of the flower basket cantilever frame according to the construction requirements;

[0029] (2) Lay out the lines precisely on the steel beam and mark the positioning points where each lifting lug device needs to be installed;

[0030] (3) The device of the present invention (i.e., the galvanized square tube 1 with the lifting lug plate) is fitted onto the first positioning point of the steel beam as a whole, and the planar position of the device is adjusted so that its center line coincides with the positioning point mark, or adjusted to the precise position as needed (e.g., avoiding the uprights, aligning the tie rods).

[0031] (4) After confirming that the position is correct, use a tool (such as a wrench) to tighten the adjusting bolts 2 located on the left and right sides of the galvanized square tube 1 until the device is firmly clamped on the steel beam and cannot slide in the horizontal direction. Bolt washers 3 can be used in conjunction with the tightening process;

[0032] (5) Repeat steps (3) and (4) at other positioning points on the steel beam to install all the required lifting lugs;

[0033] (6) During construction, if it is found that the position of a certain lifting lug device needs to be finely adjusted (for example, if it interferes with the subsequent installed uprights, or if it needs to be more accurately aligned with the upper tie rod), simply use a tool to loosen the two adjusting bolts 2 of the device appropriately, slide the device along the length of the steel beam to the new target position, and then tighten the bolts 2 again to complete the adjustment;

[0034] (7) When the scaffolding task in the area is completed and needs to be dismantled, simply reverse the operation: loosen all adjusting bolts 2 and remove the entire lifting lug plate device from the steel beam;

[0035] (8) The disassembled device can be cleaned and maintained. The adjusting bolt 2 is screwed back onto the square tube 1 (to prevent loss), and a small amount of light machine oil is applied to the threads for maintenance. Then it is stored or transported to the next place of use to realize the reuse of the device.

[0036] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A hanging lug plate device for a basket-type cantilever steel beam, characterized in that, include: The main component is fitted onto a basket-shaped cantilevered steel beam; A lifting lug plate, which is fixedly connected to the upper part of the main component; At least one adjusting fastening mechanism is provided on the main body member for fixing the main body member and the lifting lug plate to the steel beam in a detachable and adjustable manner along the length of the steel beam by applying a clamping force to the steel beam.

2. The hanging lug plate device for a basket-type cantilever steel beam according to claim 1, characterized in that: The main component is a square tube structure, which is adapted to be externally fastened to the upper flange of the steel beam.

3. The hanging lug plate device for a basket-type cantilever steel beam according to claim 2, characterized in that, The steel beam is an I-beam, and the internal cavity shape of the square tube structure is adapted to the upper flange of the I-beam.

4. The hanging lug plate device for a basket-type cantilever steel beam according to claim 2 or 3, characterized in that, The main component is a galvanized square tube.

5. The apparatus according to claim 1, characterized in that, The adjusting and fastening mechanism includes at least two adjusting bolts, and bolt holes are provided on the opposite side walls of the main component. The adjusting bolts pass through the bolt holes on the side walls to apply a clamping force to the steel beam.

6. The hanging lug plate device for a basket-type cantilever steel beam according to claim 5, characterized in that, The adjusting and fastening mechanism also includes bolt washers that cooperate with the adjusting bolt.

7. The hanging lug plate device for a basket-type cantilever steel beam according to claim 1, characterized in that, The lifting lugs are pre-fixed to the main component by welding.

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