Portable aluminum alloy joint ladder

Abstract

The utility model relates to the technical field of aluminum alloy ladders and discloses a portable aluminum alloy joint ladder which comprises a first supporting ladder, a first corner ladder, a second corner ladder, a second supporting ladder and two supporting plates, and the first supporting ladder, the first corner ladder, the second corner ladder and the second supporting ladder are mutually connected through movable joints. Pedals are mounted on the inner sides of the first supporting ladder, the first corner ladder, the second corner ladder and the second supporting ladder after the first supporting ladder, the first corner ladder, the second corner ladder and the second supporting ladder are combined, and movable rods are movably mounted on the two sides of the second supporting ladder through mounting blocks; by means of the supporting plate, the blocking net plate, the ladder erecting hook body and the storage hook, tools placed on the supporting plate can be blocked, the tools are prevented from directly falling off after being collided, the use functionality is conveniently improved, ladder erecting at the position of a pipeline is facilitated, the sliding probability after ladder erecting is reduced, and the supporting stability is conveniently improved; and articles such as tool bags can be hung on the storage hooks to be fixed, so that interference to construction of personnel is reduced.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy ladder technology, specifically a lightweight aluminum alloy articulated ladder. Background Technology

[0002] Aluminum alloy ladders are ladders made of aluminum-based alloys. They have advantages such as high strength, light weight, and easy portability, and are widely used in homes, construction, decoration and other fields. Common types include folding and extension ladders.

[0003] Chinese patent provides a multifunctional folding aluminum alloy ladder, publication number CN211692261U. The inner telescopic ladder assembly is made of vertical beams and triangular steps through a riveting process. Four through holes are drilled at one end of the vertical beam to install movable joint components, and ladder plugs are installed at the other end. The outer telescopic ladder assembly is a frame formed by an outer buckle plate and triangular steps. A bottom beam is then installed at the bottom of the buckle plate to ensure its stability.

[0004] The aforementioned alloy ladder can be adjusted in overall height and joint angle by adjusting the position of the positioning pin of the outer ladder assembly on the steps of the inner ladder assembly. It can be converted into a trestle. The movable step assembly can provide a platform for workers, improving safety. It can also be adjusted in height and joint angle, and can be converted into an A-frame ladder.

[0005] However, after the ladder is adjusted into a trestle, there are no protective measures on the side, and tools placed on the ladder by personnel are easy to fall off. In addition, after being adjusted to a fully extended state, it can only be used to build the ladder against the wall, and it is difficult to build the ladder near pipes, resulting in poor flexibility of use. Utility Model Content

[0006] The purpose of this invention is to provide a lightweight aluminum alloy articulated ladder, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A lightweight aluminum alloy articulated ladder includes a support ladder 1, a corner ladder 1, a corner ladder 2, a support ladder 2, and two support plates. The support ladder 1, corner ladder 1, corner ladder 2, and support ladder 2 are connected to each other by movable joints, and a footboard is installed on the inner side of the support ladder 1, corner ladder 1, corner ladder 2, and support ladder 2 after they are assembled.

[0009] Movable rods are movably mounted on both sides of the second support ladder via mounting blocks. The top ends of the two movable rods are fixedly connected to ladder hook bodies, and the bottom ends of the movable rods are fixedly connected to storage hooks. Adjustment knobs are threaded through both sides of the mounting blocks. Several adjustment threaded holes that adapt to the adjustment knobs are opened through both sides of the movable rods, and the adjustment threaded holes are evenly spaced on the movable rods.

[0010] Preferably, the movable joint is set as a small joint, the diameter of the movable joint is 80 mm, and by means of rotating and supporting the first support ladder and the second support ladder, a "Ji" - shaped setting can be formed.

[0011] Preferably, at the positions near the front and rear ends of the bottom ends of the two support plates, there are fixedly connected blocks that are adaptively matched with the first corner ladder and the second corner ladder, and the support plates are clamped on the top surfaces of the first corner ladder and the second corner ladder through the blocks.

[0012] Preferably, at the positions near both sides of the top end of the support plate, there are blocking net plates rotatably installed through rotating seats, and adjusting nuts are provided at the connection positions between the blocking net plates and the rotating seats.

[0013] Preferably, the top surface of the pedal is provided with anti - slip patterns, and several pedals are arranged at equal intervals on the first support ladder, the first corner ladder, the second corner ladder, and the second support ladder.

[0014] Preferably, at the ends of the second support ladder and the first support ladder that are far away from each other, there are fixedly connected anti - slip bottom beams, and anti - slip rubber layers are provided at the ends of the two anti - slip bottom beams that are far away from each other.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] By setting the support plate and the blocking net plate in cooperation with the second corner ladder and the first corner ladder, after adjustment, by standing the support plate on the sides of the first corner ladder and the second corner ladder, the tools placed on the support plate can be blocked, preventing the tools from directly falling after being collided, which is convenient for improving the use functionality.

[0017] By setting the ladder - hanging hook body and the second support ladder to cooperate with each other, when erecting the ladder vertically, by hanging the ladder - hanging hook body on cylindrical objects such as pipelines and support rods, it is convenient to erect the ladder at the pipeline, reducing the probability of sliding after erecting the ladder, facilitating the improvement of the support stability, and objects such as tool bags can be hung on the storage hooks for fixation, without straddling on the body, so as to reduce the interference to personnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a lightweight aluminum alloy joint ladder in an embodiment of the present utility model;

[0019] Figure 2 It is a schematic diagram of the vertical state structure of the first support ladder, the first corner ladder, the second corner ladder, and the second support ladder in an embodiment of the present utility model;

[0020] Figure 3 In an embodiment of the present utility model Figure 2 Enlarged view of Area A;

[0021] Figure 4 This is a demonstration diagram showing the connection of corner ladder one, corner ladder two, and support plate in an embodiment of this utility model;

[0022] Figure 5 As an embodiment of this utility model Figure 4 Enlarged view of area B.

[0023] In the diagram: 1. Support ladder one; 2. Corner ladder one; 3. Corner ladder two; 4. Support ladder two; 5. Movable joint; 6. Anti-slip base beam; 7. Step; 8. Movable rod; 9. Ladder hook body; 10. Storage hook; 11. Adjustment knob; 12. Adjustment threaded hole; 13. Support plate; 14. Locking block; 15. Baffle plate; 16. Adjusting nut. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Combination Figures 1-5 A lightweight aluminum alloy articulated ladder includes a support ladder 1, a corner ladder 2, a corner ladder 3, a support ladder 4, and two support plates 13. The support ladder 1, corner ladder 2, corner ladder 3, and support ladder 4 are connected to each other by movable joints 5, and a footboard 7 is installed on the inner side of the support ladder 1, corner ladder 2, corner ladder 3, and support ladder 4 after assembly.

[0027] See Figure 2 and Figure 3 Furthermore, it is found that movable rods 8 are movably installed on both sides of the second support ladder 4 via mounting blocks. The top ends of the two movable rods 8 are fixedly connected to the ladder hook body 9, and the bottom ends of the movable rods 8 are fixedly connected to the storage hooks 10. Adjustment knobs 11 are threaded through both sides of the mounting blocks. Several adjustment threaded holes 12 that are compatible with the adjustment knobs 11 are opened through both sides of the movable rods 8, and the adjustment threaded holes 12 are equidistantly arranged on the movable rods 8. The top surface of the step 7 is provided with anti-slip texture, and several step 7 are equidistantly arranged on the first support ladder 1, the first corner ladder 2, the second corner ladder 3, and the second support ladder 4. Anti-slip bottom beams 6 are fixedly connected to the ends of the second support ladder 4 and the first support ladder 1 that are far apart from each other. Anti-slip rubber layers are provided at the ends of the two anti-slip bottom beams 6 that are far apart from each other.

[0028] Specifically, when erecting the ladder vertically, the adjustment knob 11 can be turned to release the fixation of the movable rod 8. After that, the ladder hook body 9 can be rotated one full circle, and then the adjustment knob 11 can be screwed into a suitable adjustment threaded hole 12 for fixation to prevent it from blocking the ladder. When erecting the ladder at a cylindrical object such as a pipeline or a support rod, following the above steps, the ladder hook body 9 can be adjusted to face the pipeline. After that, the ladder hook body 9 can be hung on the pipeline to reduce the probability of subsequent sliding and tilting, facilitating the improvement of the ladder stability. Moreover, when working at height, a satchel or other tool bags can be hung on the storage hook 10, without having to carry them on the body for a long time, thus preventing them from causing great interference to the work.

[0029] Embodiment 2

[0030] Refer to Figure 4 and Figure 5 , and on the basis of Embodiment 1, it is further obtained that preferably, the movable joint 5 is set as a small joint, and the diameter of the movable joint 5 is 80 mm. And by rotating the support ladder 1 and the support ladder 4, a "ji" - shaped setting can be formed. At the front and rear end positions near the bottom of the two support plates 13, there are fixedly connected with clamping blocks 14 that are adaptively matched with the corner ladder 1 and the corner ladder 3. And the support plate 13 is clamped on the top surfaces of the corner ladder 1 and the corner ladder 3 through the clamping blocks 14. At the positions near the two sides of the top end of the support plate 13, there are rotatably installed baffle plates 15 through rotating seats, and adjustment nuts 16 are provided at the connection positions between the baffle plates 15 and the rotating seats.

[0031] Specifically, by rotating the support ladder 1 and the support ladder 4, the corner ladder 1 and the corner ladder 3 can be adjusted to a horizontal state. After that, the support plate 13 can be placed on the corner ladder 1 and the corner ladder 3, and it is ensured that the clamping blocks 14 are inserted into the corner ladder 3 and the corner ladder 1. Then personnel can climb onto the support plate 13 from the support ladder 1 for construction operations. And during the construction process, the adjustment nut 16 can be turned, and then the baffle plate 15 can be rotated and erected, and after erection, the adjustment nut 16 can be tightened again for fixation. The baffle plate 15 can block various tools placed on the support plate 13 to reduce the probability of them falling from the sides of the corner ladder 1 and the corner ladder 3, with relatively high functionality.

[0032] During the actual operation process, when erecting the ladder vertically, the adjustment knob 11 can be turned to release the fixation of the movable rod 8. After that, the ladder hook body 9 can be rotated one full circle, and then the adjustment knob 11 can be screwed into a suitable adjustment threaded hole 12 for fixation to prevent it from blocking the ladder. When erecting the ladder at a cylindrical object such as a pipeline or a support rod, following the above steps, the ladder hook body 9 can be adjusted to face the pipeline direction;

[0033] Afterwards, the ladder hook body 9 can be hung on the pipe to reduce the probability of subsequent sliding and tilting, which will improve the stability of the ladder. When working at height, a bag or other tool bag can be hung on the storage hook 10, so that it does not need to be carried on the body for a long time, thus preventing it from causing great interference to the work.

[0034] By rotating support ladder 1 and support ladder 2 4, corner ladder 1 2 and corner ladder 2 3 can be adjusted to a horizontal state. Then, support plate 13 can be placed on corner ladder 1 2 and corner ladder 2 3, and the locking block 14 should be locked into corner ladder 2 3 and corner ladder 1 2. After that, personnel can climb onto support plate 13 from support ladder 1 to carry out construction work. Support ladder 1, corner ladder 1 2, corner ladder 2 3 and support ladder 2 4 are connected by movable joint 5. At the same time, the diameter of movable joint 5 is reduced to 80 mm, which reduces the weight compared to traditional large joint ladders under the same load conditions.

[0035] Furthermore, during construction, the adjusting nut 16 can be turned to rotate the baffle plate 15 upright, and the adjusting nut 16 can be tightened again to fix it. The baffle plate 15 can block various tools placed on the support plate 13, thereby reducing the probability of them falling from the sides of the corner ladder 1 2 and corner ladder 2 3, making it highly functional.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable aluminum alloy articulated ladder characterized by: It includes a support ladder one (1), a corner ladder one (2), a corner ladder two (3), a support ladder two (4) and two support plates (13). The support ladder one (1), the corner ladder one (2), the corner ladder two (3), and the support ladder two (4) are connected to each other through movable joints (5), and a pedal (7) is installed inside after the combination of the support ladder one (1), the corner ladder one (2), the corner ladder two (3), and the support ladder two (4). Both sides of the support ladder two (4) are movably installed with movable rods (8) through mounting blocks. The tops of the two movable rods (8) are fixedly connected to a ladder hanging hook body (9), and the bottoms of the movable rods (8) are fixedly connected to storage hooks (10). Adjusting knobs (11) are threadedly connected through both sides of the mounting blocks, and a number of adjusting threaded holes (12) adapted to the adjusting knobs (11) are opened through both sides of the movable rod (8), and the adjusting threaded holes (12) are arranged at equal intervals on the movable rod (8).

2. The portable aluminum alloy articulated ladder according to claim 1, wherein: The movable joint (5) is set as a small joint, and the diameter of the movable joint (5) is 80 mm. By rotating the support ladder one (1) and the support ladder two (4), a "Ji" shape can be formed.

3. The portable aluminum alloy articulated ladder according to claim 2, wherein: Both ends of the bottoms of the two support plates (13) near the front and rear ends are fixedly connected with blocks (14) adapted to the corner ladder one (2) and the corner ladder two (3), and the support plates (13) are clamped on the top surfaces of the corner ladder one (2) and the corner ladder two (3) through the blocks (14).

4. The portable aluminum alloy articulated ladder according to claim 3, wherein: Both sides of the top ends of the support plates (13) are rotatably installed with retaining net plates (15) through rotating seats, and adjusting nuts (16) are arranged at the connections of the retaining net plates (15) and the rotating seats.

5. The portable aluminum alloy articulated ladder according to claim 1, wherein: The top surface of the pedal (7) is provided with anti-slip patterns, and a number of pedals (7) are arranged at equal intervals on the support ladder one (1), the corner ladder one (2), the corner ladder two (3), and the support ladder two (4).

6. The portable aluminum alloy articulated ladder according to claim 1, wherein: Anti-slip bottom beams (6) are fixedly connected to the mutually remote ends of the support ladder two (4) and the support ladder one (1), and anti-slip rubber layers are arranged at the mutually remote ends of the two anti-slip bottom beams (6).

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