Framework ladder stand installation combination fastener

Abstract

The utility model relates to a combined fastener for mounting a framework ladder stand, which mainly comprises channel steel, a support bracket and a connecting fastener, and the connecting fastener is a U-shaped component; the supporting bracket comprises a long arm and a short arm which are perpendicular to each other, the two arms are connected into a whole through an oblique angle plate, and a long through hole is formed in the long arm of the supporting bracket; the channel steel is fixedly connected to the framework columns, and the U-shaped connecting fasteners are respectively matched with the framework columns and then adjustably connected with the short arms of the supporting brackets through bolts; and the long through holes in the free ends of the long arm ends of the supporting brackets are overlapped with one another, then are sleeved on the mounting bolts fixedly connected with the channel steel, and slide on the mounting bolts, so that the distance between the crawling ladders is adjustable. The combined fastener for mounting the framework ladder stand can be quickly mounted and dismounted, is controllable in precision, is wide in compatibility with the size of the ladder stand, is controllable in precision, and can improve time efficiency and save cost at the same time.

Description

Technical Field

[0001] This utility model relates to the field of steel structure construction in civil engineering, and in particular to a combination fastener for installing a frame ladder. Background Technology

[0002] Various buildings and structures are not only related to a country's construction and development, but also closely related to the quality of life of its people. Steel structure engineering, as a crucial component of foundation engineering, has a significant impact on improving project quality, accelerating construction progress, reducing project costs, and achieving civilized construction. Statistics show that steel structure engineering typically accounts for 30%–40% of the cost of foundation engineering, 40%–50% of the labor required, and approximately 55% of the construction period.

[0003] Currently, the traditional support used in the installation of steel structure ladders in power engineering is the welded integral molded support. This traditional method has the following main disadvantages: (1) The welded integral molded support has many processing steps and is difficult to control in terms of precision, which affects the quality of the project; (2) The welded integral molded support has a long processing cycle and complex process, and the time and quality cannot be fully guaranteed; (3) If misalignment or hole deviation occurs during the processing of the welded integral molded support, it cannot be corrected in time, which may lead to problems such as the ladder not being able to be installed later; (4) For ladders with high requirements for installation flatness, it is necessary to manually check with a ruler whether the distance between all integral molded supports on a set of ladders and the frame surface and between the ladders is uniform and meets the installation requirements. This is labor-intensive, prone to errors, and has low acceptance efficiency; (5) The integral molded support is a disposable support. When the ladder is removed or replaced, it is removed along with the ladder and cannot be reused, which is wasteful and increases costs. It can be seen that the traditional integral molded support has many technical and economic disadvantages, which are problems that need to be solved in this field. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a frame ladder installation combination fastener that can be quickly installed and disassembled with controllable precision. It has wide compatibility with ladder size, controllable precision, and can also improve time efficiency and save costs.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A frame ladder installation combination fastener mainly includes channel steel, support bracket, and connecting fastener. The connecting fastener is a U-shaped component. The support bracket includes two arms, a long one and a short one, arranged perpendicularly to each other. The two arms are connected as one unit by an angled plate, and the long arm of the support bracket has an elongated through hole. The channel steel is fixed to the frame column. The U-shaped connecting fastener is adapted to the frame column and is adjustablely connected to the short arm of the support bracket by bolts. The long arm of the support bracket has a free end, and the elongated through holes on it overlap and fit onto the mounting bolts fixed to the channel steel. The fastener slides on the mounting bolts to make the distance between ladders adjustable.

[0007] The top surface of the channel steel is provided with a scale pointer, and the long arm of the support bracket is provided with a size scale line that matches the long through hole. The size scale line and the scale pointer are compatible.

[0008] The zero mark of the dimension scale line on the long arm of the support bracket is located in the middle of the long through hole, and the dimension scale line is arranged in a positive value count along the long through hole from the middle to both sides in a parallel direction.

[0009] Both the first mounting bolt hole on the connecting fastener and the second mounting bolt hole on the short arm of the support bracket are elongated through holes.

[0010] This utility model is mainly used for the rapid and accurate installation of frame ladders. The strength of the combined fasteners is ensured to meet design requirements, and it primarily bears the load of the ladder body, people, and equipment. Compared with existing technologies, this utility model has the following advantages:

[0011] 1. Wide compatibility with ladder sizes: This utility model allows for quick installation and disassembly with controllable precision. The long through holes of its support bracket intersect, allowing for width adjustment through stretching and contraction. The connecting fasteners, using a U-shape, are connected to the support bracket via mounting bolts in a circumferential manner. Both the connecting fasteners and the support bracket use elongated bolt holes, allowing for adjustable bolt positioning to meet the installation requirements of ladders with varying sizes.

[0012] 2. The support bracket in this utility model has a through hole with a size scale line and a scale line pointer on the channel steel, which can accurately control the width range of the frame ladder. The width range value can be quickly adjusted during construction and installation, improving work efficiency and project quality.

[0013] 3. This utility model is an assembly structure, which is simple and quick to assemble. Each component is processed in batches with uniform processing dimensions and low error tolerance. Compared with the prior art, which requires manual verification with a ruler to check whether the distance between all the one-piece molded brackets and the frame surface and the ladders is uniform, the batch processing of individual components can greatly reduce the workload of the assembly fasteners during installation and acceptance, and improve work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the installation structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the support bracket installation structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the connecting fastener structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the channel steel structure of this utility model. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0019] refer to Figure 1 A frame ladder installation combination fastener mainly includes a channel steel 5, a support bracket 1, and a connecting fastener 2. The connecting fastener 2 is a U-shaped component. The support bracket 1 includes two arms, a long one and a short one, which are perpendicular to each other and connected together by an angled plate. The long arm of the support bracket 1 has a long through hole 6. The channel steel 5 is fixed to the frame column. The U-shaped connecting fastener 2 is adapted to the frame ladder and can be adjusted to the short arm of the support bracket 1 by bolts 4. The long arm end of the support bracket 1 is at a free end. The long through holes 6 on it overlap and are fitted onto the mounting bolts 3 fixed to the channel steel 5. The fastener slides on the mounting bolts 3 to make the distance between the ladders adjustable.

[0020] The connecting fastener 2 and the support bracket 1 are fixed to the frame ladder by mounting bolts 4 in a ring-hugging manner, without the need for other equipment or tools for installation, which is convenient, quick and efficient.

[0021] The long through hole 6 on the support bracket 1 and the bolt hole 11 on the top surface of the channel steel 5 are installed on the top surface of the channel steel 5 by bolts 3 and matching nuts and washers. The connecting fastener 2 and the support bracket 1 are fastened and fixed to the frame ladder by mounting bolts 4.

[0022] The mounting bolt 3 is rigidly connected to the finished channel steel 5 through the bolt hole 11. The two support brackets 1 are fitted onto the mounting bolt 3 through the long through hole 6 with size scale lines. The width range of the ladder is adjusted by sliding the two support brackets 1 left and right. The scale value of the size scale line 7 on the support bracket 1 pointed to by the △ scale line pointer on the channel steel 5 is recorded. Then, the support bracket 1 is fixed to the surface of the channel steel 5 with the matching nut and washer of the mounting bolt 3.

[0023] The top surface of the channel steel 5 is provided with a scale pointer 8 and bolt mounting holes 11, while the long arm of the support bracket 1 is provided with a size scale 7 that matches its long through hole 6. The size scale 7 and the scale pointer 8 are compatible. On the one hand, it can adapt to and precisely control the range of adjustment of the ladder width of the frame, improving the versatility of the applicable ladder width. On the other hand, it can greatly reduce the workload of the construction process, shorten the construction cycle, and improve efficiency. After the support bracket is in place, the nuts can be directly tightened with a wrench to fix it.

[0024] The size scale line 7 of the support bracket 1 is accurate to the millimeter so as to accurately locate the range of ladder width; in addition, the △-shaped scale line pointer 8 on the channel steel 5 is set in the long through hole 6 of the support bracket 1 to facilitate the reading and recording of the scale line.

[0025] The zero mark of the size scale line 7 on the long arm of the support bracket 1 is located in the middle of the long through hole 6. The size scale line 7 is arranged in a positive value along the long through hole 6 from the middle to both sides in a parallel direction, so that the size of the scale line can be better observed during the extension and retraction of the support bracket 1.

[0026] Both the first mounting bolt hole 9 on the connecting fastener 2 and the second mounting bolt hole 10 on the short arm of the support bracket 1 are elongated through holes. The mounting bolt 4 can be adjusted to accommodate the installation of the frame ladder.

[0027] During installation, the elongated through holes 6 of the two support brackets 1 overlap, and the width range is adjusted by stretching and contracting. Simultaneously, the readings from the dimension scale lines 7 on the support brackets 1 can also serve as a measurement and positioning basis for precise width control. After positioning, the elongated through holes 6 on the support brackets 1 are connected and fixed using mounting bolts 3 and channel steel 5. The nuts and washers on the mounting bolts 3 are used to screw in the portion of the mounting screw extending from the elongated through holes 6 on the support brackets 1 and to clamp the channel steel 5 and the support brackets 1. The connecting fasteners 2, using a U-shape, are used to secure the frame ladder to the support brackets 1 in a wrapping manner, and are connected using mounting bolts 4.

[0028] During installation, ensure that the recorded values ​​of the support bracket 1 in all the installation fasteners of each set of ladders are consistent, and that the final installation positioning meets the design requirements.

[0029] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. These examples are merely for the purpose of helping to understand the structure and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A framing ladder installation assembly fastener characterized by, The combination fastener mainly comprises a channel steel (5), a supporting bracket (1) and a connecting fastener (2), the connecting fastener (2) is a concave-shaped component; the supporting bracket (1) comprises long and short arms which are arranged perpendicularly to each other, the two arms are connected into an integral whole through an inclined angle plate, and a long through hole (6) is formed in the long arm of the supporting bracket (1); the channel steel (5) is fixedly connected to a framework column, the concave shape of the connecting fastener (2) is respectively matched with the framework column after being matched with the framework column, and is adjustably connected to the short arm of the supporting bracket (1) through a bolt (4); and the long arm end of the supporting bracket (1) is a free end, the long through holes (6) on the long arm end are overlapped with each other and are sleeved on a mounting bolt (3) which is fixedly connected to the channel steel (5), and the long through holes (6) are slid on the mounting bolt (3) so that the distance between the ladders can be adjusted.

2. A framing ladder installation combination fastener as defined in Claim 1 wherein, A scale line pointer (8) is arranged on the top surface of the channel steel (5), and a size scale line (7) which is matched with the long through hole (6) is arranged on the long arm of the supporting bracket (1), the size scale line (7) is matched with the scale line pointer (8).

3. A framing ladder attachment assembly according to claim 2, wherein: The zero scale of the size scale line (7) on the long arm of the supporting bracket (1) is located at the middle position of the long through hole (6), and the size scale line (7) is arranged in a parallel direction from the middle to both sides of the long through hole (6) and is counted in a positive direction.

4. A framing ladder attachment assembly as defined in claim 1 wherein, The first mounting bolt hole (9) on the connecting fastener (2) and the second mounting bolt hole (10) on the short arm of the supporting bracket (1) are both long strip through holes.

Images