Telescopic suspension ladder stand for I-shaped steel construction

Abstract

The utility model provides a telescopic suspension ladder stand for I-shaped steel construction, which comprises a height-adjustable ladder stand, the top of the ladder stand is clamped with I-shaped steel through a connecting unit, and the size of the connecting unit in the horizontal direction is adjustable. The size of the connecting unit can be adjusted according to the width of the I-shaped steel, so that the connecting unit is clamped with the flange of the I-shaped steel, the crawling ladder leans against the side surface of the I-shaped steel, the crawling ladder and the I-shaped steel form a 90-degree angle, the stability is higher, the crawling ladder is suitable for the I-shaped steel with various sizes, and the application range is wide; the adjusting structure is fastened with the I-shaped steel, and the safety coefficient is high; all the components are detachably connected and are very convenient to mount and dismount, so that the working efficiency is improved; the crawling ladder is telescopic, small in size and convenient to transport; the ladder stand can be recycled, so that the construction cost is effectively saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of suspended ladders, in particular to a telescopic suspended ladder used for I-beam construction. Background Art

[0002] In recent years, people have higher and higher requirements for the appearance and use of space of buildings. The construction of large-scale venues is in full swing. In order to meet the demand for tall buildings, a large number of steel structures have emerged. Due to the complex structure of large-scale venues and the large number of steel structure rods, aerial splicing and welding operations are often required during the construction process. When performing such operations, the traditional construction method is a simple ladder made on site, and its construction reliability and safety are difficult to control, which affects the smooth progress of the construction.

[0003] For example, a safety ladder for steel beam construction disclosed in a Chinese utility model patent application with an authorization announcement date of 2022.08.26 and an authorization announcement number of CN217299751U includes a steel beam and a ladder body, the ladder body includes two symmetrically arranged ladder angle steels, a plurality of round steels are equally spaced between the two ladder angle steels, and a plurality of flat steels, one end of the plurality of flat steels is welded and fixed to a ladder angle steel, and the other end is welded and fixed to another ladder angle steel, a cage-like passage is enclosed between the two angle steels and the plurality of flat steels, and the ladder body and the steel beam are detachably fixed by a steel beam connecting structure.

[0004] The above-mentioned prior art provides safety protection for workers, but has the following disadvantages:

[0005] 1. The ladder is fixed to the steel beam by connecting angle steel and bolts, which is troublesome to operate;

[0006] 2. After the ladder is installed, its position cannot be changed and it needs to be disassembled and installed again.

[0007] Therefore, how to make the connection and removal of the ladder and the steel beam convenient and quick, and how to make the positional relationship between the ladder and the steel beam easy to adjust are technical problems that need to be solved urgently. Utility Model Content

[0008] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a retractable hanging ladder for I-beam construction, which solves the problem that the ladder is fixedly connected to the steel beam, the operation is cumbersome, and the position of the ladder cannot be changed after installation and it needs to be disassembled and reinstalled.

[0009] The technical solution of this application is:

[0010] A telescopic hanging ladder for I-beam construction includes a height-adjustable ladder, the top of the ladder is connected to the I-beam through a connecting unit, and the connecting unit is adjustable in size in the horizontal direction. The size of the connecting unit can be adjusted according to the width of the I-beam, so that the connecting unit is connected to the flange of the I-beam, the ladder leans against the side of the I-beam, and the ladder and the I-beam form a 90-degree angle, which is more stable, so that the ladder is suitable for I-beams of various sizes and has a wide range of applications; the ladder is fastened to the I-beam by adjusting the structure, and the safety factor is high; the components are detachably connected, and the installation and disassembly are very convenient, which improves work efficiency; the ladder can be used in a turnover manner, effectively saving construction costs.

[0011] Furthermore, the ladder comprises an upper ladder and a lower ladder that are slidably matched, the upper ladder and the lower ladder are positioned by a positioning piece, the ladder is retractable, has a small size, and is easy to transport.

[0012] Furthermore, the upper ladder includes a support rod 1 and a support rod 2 arranged in parallel, a plurality of steps are arranged between the support rod 1 and the support rod 2, the support rod 1 and the support rod 2 are both hollow rods, the inner side surfaces of the support rod 1 and the support rod 2 are provided with strip grooves for the lower ladder to pass through, the outer side surfaces of the support rod 1 and the support rod 2 are provided with bolt holes 1, and the positioning piece passes through the bolt holes 1 and is crimped with the lower ladder.

[0013] Furthermore, the lower ladder includes support rod three and support rod four arranged in parallel, the outer surfaces of support rod three and support rod four are in contact with the inner surfaces of support rod one and support rod two, and a plurality of steps are arranged between support rod three and support rod four.

[0014] Furthermore, the step includes a connecting rod with a circular or square cross-section.

[0015] Furthermore, at least two connecting units are provided, and the connection with the ladder is more stable. The connecting unit includes a hook 1 and a hook 2 connected by a connecting piece, the hook 1 is clamped with the flange of the I-beam, and the hook 2 is clamped with the step.

[0016] Furthermore, the hook one and the hook two both include a straight-line hook arm, and a plurality of holes are provided on the straight-line hook arm. When the upper and lower parts of the straight-line hook arms of the hook one and the hook two overlap, the connecting member passes through the holes for limiting.

[0017] Furthermore, an L-shaped barb is connected to the end of the I-shaped hook arm, and the gap between the bottom plate of the L-shaped barb and the I-shaped hook arm is used to clamp the I-beam, and an adjustment structure for clamping the I-beam flange is provided on the bottom plate.

[0018] Furthermore, the adjustment structure includes a bolt with a first clamping plate provided at the end, a second bolt hole is provided on the bottom plate, and the bolt passes through the second bolt hole and is threadably engaged with the second clamping plate.

[0019] Furthermore, the opening directions of the hook 1 and the hook 2 are opposite.

[0020] The specific beneficial effects of the utility model include:

[0021] 1. The utility model can adjust the size of the connection unit according to the width of the I-beam, so that the connection unit is clamped with the flange of the I-beam, the ladder leans against the side of the I-beam, and the ladder forms a 90-degree angle with the I-beam, which is more stable, making the ladder suitable for I-beams of various sizes and having a wide range of applications;

[0022] 2. The utility model is fixed with the I-beam by adjusting the structure, so the safety factor is high;

[0023] 3. The components in the utility model can be detachably linked, and installation and disassembly are very convenient, which improves work efficiency;

[0024] 4. The ladder in the utility model is retractable, small in size and easy to transport;

[0025] 5. The ladder in the utility model can be used cyclically, which effectively saves construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic diagram of the use state of the utility model;

[0028] Figure 2 It is a schematic diagram of the ladder in the utility model;

[0029] Figure 3 It is a schematic diagram of the connection unit and the ladder in the utility model;

[0030] Figure 4 Schematic diagram of the regulatory structure.

[0031] Description of Figure Numbers:

[0032] 1. Ladder; 2. Connection unit; 3. I-beam; 4. Adjustment structure;

[0033] 10. Positioning piece; 11. Climb up the ladder; 12. Climb down the ladder; 13. Step;

[0034] 14. Support rod one; 15. Support rod two; 16. Support rod three; 17. Support rod four;

[0035] 18. Strip notch;

[0036] 21. Connecting piece; 22. Hook 1; 23. Hook 2; 24. Bottom plate;

[0037] 41. Pallet one; 42. Bolt; 43. Pallet two. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] A retractable hanging ladder for I-beam construction, such as Figure 1 As shown, it comprises a height-adjustable ladder 1, the top of the ladder 1 is connected to the I-beam 3 through a connecting unit 2, and the connecting unit 2 is adjustable in the horizontal direction. The size of the connecting unit can be adjusted according to the width of the I-beam, so that the connecting unit is connected to the flange of the I-beam, the ladder leans against the side of the I-beam, and the ladder and the I-beam form a 90-degree angle, which is more stable, so that the ladder is suitable for I-beams of various sizes and has a wide range of applications; the safety factor is high by fastening the structure to the I-beam; the components are detachably connected, and the installation and disassembly are very convenient, which improves work efficiency; the ladder can be used in a turnover manner, effectively saving construction costs.

[0040] Based on the above implementation, as a preferred implementation, Figure 2 As shown, the ladder 1 comprises an upper ladder 11 and a lower ladder 12 which are slidably matched, and the upper ladder 11 and the lower ladder 12 are positioned by a positioning member 10. The ladder is retractable, small in size, and easy to transport.

[0041] On the basis of the above embodiment, as a preferred embodiment, the upper ladder 11 includes a support rod 14 and a support rod 15 arranged in parallel, and a plurality of steps 13 are arranged between the support rod 14 and the support rod 15. The support rod 14 and the support rod 15 are both hollow rods, and the inner side surfaces of the support rod 14 and the support rod 15 are provided with a strip groove 18 for the lower ladder 12 to pass through, and the outer side surfaces of the support rod 14 and the support rod 15 are provided with a bolt hole 1, and the positioning member 10 passes through the bolt hole 1 and is crimped with the lower ladder 12.

[0042] Specifically, the positioning member 10 is a bolt. When the positional relationship between the upper ladder 11 and the lower ladder 12 is determined, the bolt is tightened and pressed onto the lower ladder 12 to limit the position.

[0043] On the basis of the above-mentioned embodiment, as a preferred embodiment, the opening size of the strip-shaped slot 18 is larger than the diameter of the step 13, so that the upper ladder 11 and the lower ladder 12 can be telescoped.

[0044] On the basis of the above-mentioned embodiment, as a preferred embodiment, the lower ladder 12 includes a support rod three 16 and a support rod four 17 arranged in parallel, the outer surfaces of the support rod three 16 and the support rod four 17 are in contact with the inner surfaces of the support rod one 14 and the support rod two 15, and a plurality of steps 13 are arranged between the support rod three 16 and the support rod four 17.

[0045] Based on the above embodiment, as a preferred embodiment, the step 13 includes a connecting rod with a circular or square cross-section.

[0046] Based on the above implementation, as a preferred implementation, Figure 3 As shown, at least two connection units 2 are provided, and the connection unit 2 includes a hook 1 22 and a hook 23 connected by a connecting member 21 , the hook 1 22 is clamped with the flange of the I-beam 3 , and the hook 23 is clamped with the step 13 .

[0047] On the basis of the above-mentioned embodiment, as a preferred embodiment, the hook 1 22 and the hook 2 23 both include a straight-line hook arm, and a plurality of holes are provided on the straight-line hook arm. When the upper and lower parts of the straight-line hook arms of the hook 1 22 and the hook 2 23 overlap, the connecting member 21 passes through the holes for limiting.

[0048] Specifically, the connecting member 21 is a connecting rod, which passes through the hole for positioning, and is aligned up and down through different holes on the hook 1 22 and the hook 2 23 to adjust the length in the horizontal direction.

[0049] Based on the above implementation, as a preferred implementation, Figure 4 As shown, the end of the I-shaped hook arm is connected with an L-shaped barb, and the gap between the base plate 24 of the L-shaped barb and the I-shaped hook arm is used to clamp the I-beam 3. The base plate 24 is provided with an adjustment structure 4 for clamping the flange of the I-beam 3. The adjustment structure 4 is fastened to the I-beam 3, and the safety factor is high.

[0050] Based on the above embodiment, as a preferred embodiment, the adjustment structure includes a bolt 42 with a clamping plate 41 at the end, and a bolt hole 2 is provided on the base plate 24. The bolt 42 passes through the bolt hole 2 and is threadedly engaged with the clamping plate 2 43.

[0051] Based on the above embodiment, as a preferred embodiment, the opening directions of the hook 1 22 and the hook 2 23 are opposite.

[0052] Specifically, the hook opening of the hook 1 22 is located at the bottom and is clamped with the flange of the I-beam 3, and the hook opening of the hook 2 23 is located at the top and is clamped with the step.

[0053] The parts not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0054] The above content shows and describes the basic principle, main features and beneficial effects of the utility model. The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A retractable hanging ladder for I-beam construction, characterized in that: The invention relates to a height-adjustable ladder (1), wherein the top of the ladder (1) is clamped to an I-beam (3) via a connecting unit (2), and the connecting unit (2) is adjustable in size in the horizontal direction; the ladder (1) comprises an upper ladder (11) and a lower ladder (12) which are slidably matched, and the upper ladder (11) and the lower ladder (12) are positioned via a positioning member (10); the upper ladder (11) comprises a first support rod (14) and a second support rod (15) which are arranged in parallel, and a plurality of steps (13) are arranged between the first support rod (14) and the second support rod (15), and the inner side surfaces of the first support rod (14) and the second support rod (15) are provided with strip-shaped slots (18) for the lower ladder (12) to pass through, and the outer side surfaces of the first support rod (14) and the second support rod (15) are provided with a bolt hole (1), and the positioning member (10) passes through the bolt hole (1) and the lower ladder (12) to be positioned. The lower ladder (12) is crimped; at least two connection units (2) are provided, and the connection units (2) include a hook 1 (22) and a hook 2 (23) connected by a connection member (21), the hook 1 (22) being clamped with the flange of the I-beam (3), and the hook 2 (23) being clamped with the step (13); the hook 1 (22) and the hook 2 (23) both include a straight-line hook arm, and a plurality of holes are provided on the straight-line hook arm. When the straight-line hook arms of the hook 1 (22) and the hook 2 (23) overlap, the connection member (21) passes through the holes for position limiting; an L-shaped hook arm is connected to the end of the straight-line hook arm, and a gap between a bottom plate (24) of the L-shaped hook and the straight-line hook arm is used to clamp the I-beam (3), and an adjustment structure (4) for clamping the flange of the I-beam (3) is provided on the bottom plate (24).

2. The retractable hanging ladder for I-beam construction according to claim 1 is characterized in that: The lower ladder (12) comprises a third support rod (16) and a fourth support rod (17) arranged in parallel, the outer surfaces of the third support rod (16) and the fourth support rod (17) being in contact with the inner surfaces of the first support rod (14) and the second support rod (15), and a plurality of steps (13) are arranged between the third support rod (16) and the fourth support rod (17).

3. The retractable hanging ladder for I-beam construction according to any one of claims 1-2, characterized in that: The step (13) comprises a connecting rod with a circular or square cross section.

4. The retractable hanging ladder for I-beam construction according to any one of claims 1 to 2, characterized in that: The adjustment structure comprises a bolt (42) with a first clamping plate (41) provided at the end thereof, a second bolt hole is provided on the bottom plate (24), and the bolt (42) passes through the second bolt hole and is threadably engaged with the second clamping plate (43).

5. The retractable hanging ladder for I-beam construction according to any one of claims 1-2, characterized in that: The opening directions of the hook 1 (22) and the hook 2 (23) are opposite.

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