Folding ladder for construction site

Abstract

The utility model discloses a folding ladder for a construction site, and relates to the technical field of building construction, the folding ladder comprises main beam rods, one end of each main beam rod is provided with an expansion assembly, an anti-slip piece is arranged between the main beam rods, one end, far away from the expansion assembly, of each main beam rod is provided with an adjusting piece, the expansion assembly comprises a folding and unfolding piece and a protective piece, and the folding and unfolding piece comprises an auxiliary beam rod. The auxiliary beam rod is movably connected to the bottom of the main beam rod, a positioning groove is formed in the inner side of the auxiliary beam rod, the auxiliary beam rod is connected with the main beam rod through a positioning bolt, and one end of the positioning bolt protrudes out of the outer side of the main beam rod. According to the folding ladder for the construction site, the overlapping area of the auxiliary beam rod and the main beam rod is the maximum value by overturning the auxiliary beam rod upwards, the positioning bolt is located at the highest end in the positioning groove, and the device is in a storage state, so that the size of the device is reduced on the premise that the use effect is guaranteed, and the folding ladder is convenient to use. And the device is easier and more convenient to carry and move.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a folding ladder for use on construction sites. Background Technology

[0002] Folding ladders are construction equipment used to assist workers in moving up and down heights on construction sites. They function like movable staircases and are unfolded when needed.

[0003] Folding ladders are compact, lightweight, and easy to carry and store, making them suitable for use in confined spaces such as construction sites. Chinese patent CN220151247U discloses a folding ladder for construction. By incorporating a folding ladder structure between support rod one and support rod two, it creates a limiting effect between the two support rods, preventing slippage between support rods and the ground during use and improving the overall stability of the folding ladder structure.

[0004] The folding ladder mainly consists of two parallel main beams and several horizontal rungs, forming the main frame of the entire ladder. Compared with traditional straight ladders, it has a hinge mechanism at the top of the main beams, which allows the ladder frame to be folded up for easy carrying and storage. Although the folding ladder can be folded up by pushing the main beams together through the folding mechanism, the fixed-size ladder frame still occupies a large space, making it inconvenient to move when entering small construction site spaces. Utility Model Content

[0005] In view of the problem that existing folding ladders, when folded, stored and carried, still occupy a large space due to their fixed-size ladder frame, making them inconvenient to move when entering small construction site spaces, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a folding ladder for construction sites. The purpose is to adopt a ladder frame design with foldable main beams and secondary beams, which reduces the size of the device while ensuring the effectiveness of use, making the device easier and more convenient to move.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a folding ladder for construction sites, comprising main beams arranged side by side, an extension component at one end of each main beam, anti-slip components between the main beams, and an adjustment component at the end of each main beam away from the extension component;

[0008] The extension component includes a retractable part and a protective part. The retractable part includes a secondary beam rod, which is movably connected to the bottom of the main beam rod and corresponds one-to-one with the main beam rod.

[0009] The inner side of the sub-beam rod is provided with a positioning groove, and the sub-beam rod is connected to the main beam rod by a positioning bolt, with one end of the positioning bolt protruding outward from the main beam rod.

[0010] A slot is provided on one side of the sub-beam rod, and anti-slip pads are fixedly installed at both ends of the sub-beam rod.

[0011] As a preferred embodiment of the folding ladder for construction sites described in this utility model, the extension component further includes a protective component, which includes a first horizontal ladder. The first horizontal ladder is arranged inside the main beam, and the secondary beams are connected by the first horizontal ladder. The outer side of the first horizontal ladder is provided with a groove.

[0012] As a preferred embodiment of the folding ladder for construction sites described in this utility model, a drain groove is arranged on the side of the first horizontal ladder near the groove, and drainage holes are provided at both ends of the drain groove.

[0013] As a preferred embodiment of the folding ladder for construction sites described in this utility model, the anti-slip component includes a second horizontal ladder, which is arranged between the main beams and the main beams are parallel to each other through the second horizontal ladder. The surface of the second horizontal ladder is provided with anti-slip grooves.

[0014] As a preferred embodiment of the folding ladder for construction sites described in this utility model, the second horizontal ladder has grip openings at both ends, and the edges of the grip openings and the connection between the grip openings and the main beam are provided with rubber edging.

[0015] As a preferred embodiment of the folding ladder for construction sites described in this utility model, the adjusting component includes an assembly base, which is installed at the end of the main beam away from the secondary beam. A positioning hole is provided on the inner side of the assembly base, and the positioning hole is rotated around the axis of the main beam. The assembly base is arranged parallel to the main rotating shaft.

[0016] As a preferred embodiment of the folding ladder for construction sites described in this utility model, a right-angle plate is fixedly installed on the outer side of the assembly base, the right-angle plates are arranged side by side and symmetrically distributed, and an inclined plate is fixedly installed on the inner side of the right-angle plate.

[0017] The beneficial effects of this utility model are:

[0018] 1. By flipping the secondary beam upwards, the overlap area between the secondary beam and the main beam is maximized, the positioning bolt is at its highest point in the positioning slot, and the device is in a stowed state. While ensuring the effectiveness of use, the size of the device is reduced, making it easier and more convenient to move and transport.

[0019] 2. The friction between the feet and the device is increased by the grooves on the first horizontal ladder and the anti-slip grooves on the second horizontal ladder, and rainwater in the drain is drained through the drainage hole to avoid slipping. The grips on the second horizontal ladder, which are wrapped with rubber, ensure the safety of workers when climbing.

[0020] 3. By fixing screws in the corresponding screw holes in the right-angle plate, inclined plate and main beam, the deflection angle of the main beam with the positioning hole as the center is determined, so that the device can change to multiple states and meet more usage requirements. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them:

[0022] Figure 1 This is a schematic diagram of the unfolded structure of the folding ladder used on construction sites according to this utility model.

[0023] Figure 2 This is a schematic diagram of the folding ladder used on construction sites in its stowed state.

[0024] Figure 3 This is a schematic diagram of the adjusting mechanism of the folding ladder used on construction sites according to this utility model.

[0025] Figure 4 This is a schematic diagram of the expansion component structure of the folding ladder for construction sites according to this utility model.

[0026] Figure 5 This is a schematic diagram of the unfolding and retracting structure of the folding ladder used on construction sites according to this utility model.

[0027] Figure 6 This is a schematic diagram of the protective component structure of the folding ladder used on construction sites according to this utility model.

[0028] Figure 7 This is a schematic diagram of the anti-slip component structure of the folding ladder used on construction sites according to this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Main beam; 2. Extension assembly; 21. Retractable component; 211. Secondary beam; 212. Positioning groove; 213. Positioning bolt; 214. Slot; 215. Anti-slip mat; 22. Protective component; 221. First horizontal ladder; 222. Groove; 223. Drainage groove; 224. Drainage hole; 3. Anti-slip component; 31. Second horizontal ladder; 32. Anti-slip groove; 33. Grip opening; 34. Rubber edging; 4. Adjustable component; 41. Assembly base; 42. Positioning hole; 43. Main shaft; 44. Right angle plate; 45. Inclined plate. Detailed Implementation

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example

[0032] Reference Figure 1-7 This is the first embodiment of the present invention, providing a folding ladder for construction sites. The folding ladder includes main beams 1 arranged side-by-side. One end of each main beam 1 is provided with an extension component 2. Anti-slip components 3 are provided between the main beams 1. An adjusting component 4 is provided at the end of each main beam 1 away from the extension component 2. The extension component 2 includes a folding component 21 and a protective component 22. The folding component 21 includes a secondary beam 211. A first horizontal ladder 221 is movably connected to the bottom of the main beams 1 and corresponds one-to-one with each main beam 1. A positioning groove 212 is provided on the inner side of the secondary beam 211. The secondary beam 211 is connected to the main beam 1 via a positioning bolt 213, one end of which protrudes outward from the outer side of the main beam 1. A locking mechanism is provided on one side of the secondary beam 211. Both ends of the slot 214 and the secondary beam 211 are fixedly equipped with anti-slip pads 215. The anti-slip pads 215 are fixedly installed at both ends of the secondary beam 211. The main beam 1 is made of aluminum alloy and its surface is coated with waterproof paint. The secondary beam 211 is fixedly connected to the bottom of the main beam 1 by positioning bolts 213. When the positioning bolts 213 are at the lowest end in the positioning slot 212, the total length between the secondary beam 211 and the main beam 1 is the longest, and the device is in the unfolded state. When the positioning bolts 213 are at the highest end in the positioning slot 212, the overlap area between the secondary beam 211 and the main beam 1 is the maximum value, and the device is in the retracted state. The anti-slip pads 215 set at both ends of the secondary beam 211 increase the friction with the ground when the device is unfolded and retracted, making it easy to use.

[0033] The expansion component 2 also includes a protective component 22, which includes a first horizontal ladder 221. The first horizontal ladder 221 is arranged on the inner side of the main beam 1, and the secondary beams 211 are connected by the first horizontal ladder 221. The outer side of the first horizontal ladder 221 is provided with grooves 222. The first horizontal ladder 221 is convenient for workers to step on, and the grooves 222 increase the friction between the foot and the device to prevent slipping.

[0034] A drain trough 223 is arranged on the side of the first horizontal ladder 221 near the groove 222. Drain holes 224 are provided at both ends of the drain trough 223. The drain trough 223 can collect any rainwater that may be present on the first horizontal ladder 221 and discharge it from the device through the drain holes 224, thereby preventing rainwater from accumulating and causing slippery conditions.

[0035] The anti-slip component 3 includes a second horizontal ladder 31, which is arranged between the main beams 1 and the main beams 1 are parallel to each other through the second horizontal ladders 31. The surface of the second horizontal ladder 31 is provided with anti-slip grooves 32. The second horizontal ladder 31 is convenient for workers to step on, and the anti-slip grooves 32 increase the friction between the feet and the device to prevent slipping.

[0036] Both ends of the second horizontal ladder 31 are provided with grip openings 33, and the edges of the grip openings 33 and the connection between the grip openings 33 and the main beam 1 are provided with rubber edging 34. The grip openings 33 can help workers to grip, and the rubber edging 34 ensures the comfort of gripping and avoids injury to workers.

[0037] The adjusting component 4 includes an assembly base 41, which is installed at the end of the main beam 1 away from the secondary beam 211. A positioning hole 42 is provided on the inner side of the assembly base 41. The positioning hole 42 rotates around the axis of the main beam 1. The assembly base 41 is arranged in parallel with the main rotating shaft 43. The main beam 1 can rotate around the positioning hole 42 as the center under the restriction of the assembly base 41 to adjust the required deflection angle. The outer side of the main rotating shaft 43 is covered with rubber to facilitate workers to step on it when reaching the highest point.

[0038] A right-angle plate 44 is fixedly installed on the outer side of the assembly base 41. The right-angle plates 44 are arranged side by side and symmetrically distributed. An inclined plate 45 is fixedly installed on the inner side of the right-angle plate 44. The inner sides of both the right-angle plate 44 and the inclined plate 45 are provided with corresponding threaded holes on the main beam 1. By fixing the deflection angle of the main beam 1 in the threaded holes at different positions, the device can undergo multiple state transitions to meet more usage requirements.

[0039] In use, the secondary beam 211 is deflected downwards, maximizing the total length of the first horizontal ladder 221 and the main beam 1. With the positioning bolt 213 at its lowest point in the positioning groove 212, the device is in its unfolded state. It is then fixed in place by screws in the corresponding screw holes in the right-angle plate 44, inclined plate 45, and main beam 1. This determines the deflection angle of the main beam 1 within the assembly base 41, centered on the positioning hole 42. When the screws in the main beam 1 are located at the end of the right-angle plate 44 perpendicular to the assembly base 41, the main beams 1 are parallel to each other, and the device is in a folded state, allowing for upright use. When located in the inclined plate 45, the device is in its unfolded state, with an angle between the main beams 1, and the device functions as a triangular ladder. When located at the end of the right-angle plate 44 parallel to the assembly base 41, the main beams 1 form a straight line, and the device functions as a straight ladder. This allows the device to undergo multiple state transitions. To meet more usage needs, during worker climbing, the grooves 222 on the first horizontal ladder 221 and the anti-slip grooves 32 on the second horizontal ladder 31 increase the friction between the foot and the device, and the drainage holes 224 drain the rainwater from the drain trough 223 to avoid slipping. By gripping the grip openings 33 on the second horizontal ladder 31, which are wrapped with rubber edges 34, the safety of workers during climbing is ensured. When it is necessary to move or transport, the sub-beam 211 is flipped upward to maximize the overlap area between the sub-beam 211 and the main beam 1. The positioning bolt 213 is at the highest point in the positioning groove 212, and the device is in the storage state. The anti-slip pads 215 set at both ends of the sub-beam 211 increase the friction with the ground when the device is unfolded and stored. While ensuring the use effect, the size of the device is reduced, making it easier and more convenient to move and transport.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A folding ladder for construction sites, comprising main beams (1) arranged side by side, characterized in that: An extension component (2) is provided at one end of the main beam (1), an anti-slip component (3) is provided between the main beams (1), and an adjustment component (4) is provided at the end of the main beam (1) away from the extension component (2). The extension component (2) includes a retractable part (21) and a protective part (22). The retractable part (21) includes a secondary beam rod (211), which is movably connected to the bottom of the main beam rod (1) and corresponds one-to-one with the main beam rod (1). The inner side of the sub-beam rod (211) is provided with a positioning groove (212), and the sub-beam rod (211) is connected to the main beam rod (1) through a positioning bolt (213), and one end of the positioning bolt (213) protrudes out of the outer side of the main beam rod (1); A slot (214) is provided on one side of the sub-beam rod (211), and anti-slip pads (215) are fixedly installed at both ends of the sub-beam rod (211).

2. A folding ladder for construction sites according to claim 1, characterized in that: The extension component (2) also includes a protective component (22), which includes a first horizontal ladder (221). The first horizontal ladder (221) is arranged on the inner side of the main beam (1), and the secondary beams (211) are connected to each other through the first horizontal ladder (221). The outer side of the first horizontal ladder (221) is provided with a groove (222).

3. A folding ladder for construction sites according to claim 2, characterized in that: The first horizontal ladder (221) is also provided with a drain trough (223) on the side near the groove (222), and both ends of the drain trough (223) are provided with drainage holes (224).

4. A folding ladder for construction sites according to claim 1, characterized in that: The anti-slip component (3) includes a second horizontal ladder (31), which is arranged between the main beam rods (1) and the main beam rods (1) are distributed in parallel through the second horizontal ladder (31). The surface of the second horizontal ladder (31) is provided with anti-slip grooves (32).

5. A folding ladder for construction sites according to claim 4, characterized in that: Both ends of the second horizontal ladder (31) are provided with gripping openings (33), and the edges of the gripping openings (33) and the connection between the gripping openings (33) and the main beam (1) are provided with rubber edging (34).

6. A folding ladder for construction sites according to claim 1, characterized in that: The adjusting component (4) includes an assembly seat (41), which is installed at the end of the main beam (1) away from the secondary beam (211). The inner side of the assembly seat (41) is provided with a positioning hole (42), which rotates around the axis of the main beam (1) at the position of the positioning hole (42). The assembly seat (41) is arranged in parallel through the main rotating shaft (43).

7. A folding ladder for construction sites according to claim 6, characterized in that: A right-angle plate (44) is fixedly installed on the outer side of the assembly base (41). The right-angle plates (44) are arranged side by side and symmetrically distributed. An inclined plate (45) is fixedly installed on the inner side of the right-angle plate (44).

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