Aluminum alloy ladder

Abstract

The utility model belongs to the technical field of aluminum alloy ladders, and particularly relates to an aluminum alloy ladder which comprises a connecting rod, a first connecting ladder is hinged to the connecting rod, a second connecting ladder is clamped to the end, away from the connecting rod, of the first connecting ladder, and supporting legs are detachably connected to the end, away from the first connecting ladder, of the second connecting ladder. According to the aluminum alloy ladder, through the hinged design between the connecting rods and the first connecting ladder, the ladder can be easily switched from a straight ladder mode to a pedestrian ladder mode according to needs, the ladder can adapt to more diversified working scenes due to the multifunctionality, and the using flexibility and efficiency of the ladder are improved; meanwhile, the stability of the ladder is further enhanced through the arrangement of a double locking mechanism of a sliding block, a limiting rod and a bolt, flexible adjustment of the length of the ladder is achieved through the first connecting ladder and the second connecting ladder which are designed in a clamping mode in cooperation with an automatic locking mechanism of a fixing block and a clamping groove, and the practicability and flexibility of the ladder are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy ladders, and specifically relates to an aluminum alloy ladder. Background Technique

[0002] The special aluminum alloy ladder for ships is a ladder made of aluminum alloy material, which has the advantages of light weight, high strength, corrosion resistance, high temperature resistance, etc.

[0003] At present, many existing aluminum alloy ladders are only designed in the form of straight ladders and cannot be flexibly changed into pedestrian ladders or other forms according to the usage requirements. This single function limits the application scenarios of the ladders, making it necessary to carry multiple ladders when facing different working environments. In view of this, we propose an aluminum alloy ladder. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an aluminum alloy ladder, which can solve the problems raised in the above background technique.

[0005] To achieve the above purpose, an aluminum alloy ladder proposed by the utility model includes a connecting rod. The connecting rod is hinged with a connecting ladder one. One end of the connecting ladder one away from the connecting rod is clamped with a connecting ladder two. One end of the connecting ladder two away from the connecting ladder one is detachably connected with a support leg. The connecting rod is provided with:

[0006] A clamping rod, the clamping rod penetrates through the connecting rod and is slidably connected with the connecting rod. A second spring and a first guide rod are fixedly connected to the outer wall of the clamping rod;

[0007] The second spring, one end of the second spring away from the clamping rod is fixedly connected with the inner wall of the connecting rod;

[0008] The first guide rod, the first guide rod penetrates through the connecting rod and is slidably connected with the inner wall of the connecting rod.

[0009] Preferably, a limiting block is slidably connected to the inner wall of the connecting rod to limit the clamping rod. The limiting block penetrates through the connecting ladder one and is sleeved with the connecting ladder one. A first spring is fixedly connected to the outer wall of the limiting block. One end of the first spring away from the limiting block is fixedly connected with the inner wall of the connecting rod.

[0010] Preferably, a sliding groove is opened on the outer wall of the connecting ladder one, a limiting groove is opened inside the connecting ladder one, a notch is opened on the inner wall of the sliding groove, and a groove is opened at one end of the connecting ladder one away from the connecting rod.

[0011] Preferably, a sliding block is slidably connected to the sliding groove. The sliding block penetrates through the hinge rod and is rotatably connected to the hinge rod. One end of the hinge rod away from the sliding block is hinged to the connecting rod. A limiting rod is slidably connected to the sliding block. One end of a third spring is fixedly connected to the outer wall of the limiting rod, and the other end of the third spring is fixedly connected to the inner wall of the sliding block. A second guide rod is fixedly connected to the outer wall of the limiting rod, and the second guide rod is slidably connected to the sliding block. A bolt is threadedly connected to the sliding block.

[0012] Preferably, a clamping groove is formed in the inner wall of the groove. An extrusion rod is slidably connected to the clamping groove. By pressing and extruding, the fixing block can be completely separated from the clamping groove. The extrusion rod penetrates through the first connecting ladder and is slidably connected to the first connecting ladder. One end of a fourth spring is fixedly connected to the outer wall of the extrusion rod, and the other end of the fourth spring is fixedly connected to the inner wall of the first connecting ladder.

[0013] Preferably, the second connecting ladder is penetrated by the fixing block and is slidably connected to the fixing block. A fifth spring is fixedly connected to the outer wall of the fixing block, and the other end of the fifth spring away from the fixing block is fixedly connected to the inner wall of the second connecting ladder.

[0014] The utility model provides an aluminum alloy ladder. It has the following beneficial effects:

[0015] (1) For this aluminum alloy ladder, through the hinge design between the connecting rod and the first connecting ladder, the ladder can be easily switched from the straight ladder mode to the stepladder mode according to needs. This versatility enables the ladder to adapt to more diverse working scenarios, improving its flexibility and efficiency in use. At the same time, through the setting of the double locking mechanism of the sliding block, the limiting rod and the bolt, the stability of the ladder is further enhanced.

[0016] (2) For this aluminum alloy ladder, through the snap - connection design of the first connecting ladder and the second connecting ladder, combined with the automatic locking mechanism of the fixing block and the clamping groove, the flexible adjustment of the ladder length is realized. The total length of the ladder can be quickly adjusted according to actual needs, greatly improving the practicality and flexibility of the ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0018] Figure 1 It is a schematic three - dimensional structure diagram of the whole of the present utility model;

[0019] Figure 2Schematic diagram of the three - dimensional cross - section structure of the second part of the connecting ladder of the present utility model;

[0020] Figure 3 For the present utility model Figure 2 Schematic diagram of structure A;

[0021] Figure 4 Schematic diagram of the three - dimensional cross - section structure of the first part of the connecting ladder of the present utility model Figure 1 ;

[0022] Figure 5 For the present utility model Figure 4 Schematic diagram of structure B;

[0023] Figure 6 Schematic diagram of the three - dimensional cross - section structure of the present utility model;

[0024] Figure 7 For the present utility model Figure 6 Schematic diagram of structure C;

[0025] Figure 8 Schematic diagram of the three - dimensional cross - section structure of the first part of the connecting ladder of the present utility model Figure 2 。

[0026] Explanation of the reference numerals in the attached drawings:

[0027] 1. Connecting rod; 11. Hinge rod; 12. First spring; 13. Clamping rod; 14. Second spring; 15. First guide rod; 16. Limit block; 2. First connecting ladder; 20. Limit groove; 21. Slide groove; 211. Slide block; 212. Limit rod; 213. Third spring; 214. Second guide rod; 215. Bolt; 22. Notch; 23. Groove; 231. Card slot; 232. Extrusion rod; 233. Fourth spring; 3. Second connecting ladder; 31. Fixed block; 32. Fifth spring; 4. Support leg.

[0028] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer to Figures 1 - 8, the present utility model proposes an aluminum alloy ladder, including a connecting rod 1. The connecting rod 1 is hinged with a connecting ladder one 2. One end of the connecting ladder one 2 away from the connecting rod 1 is clamped with a connecting ladder two 3. The connecting ladder two 3 is penetrated by a fixing block 31 and is slidably connected with the fixing block 31. The outer wall of the fixing block 31 is fixedly connected with a fifth spring 32. One end of the fifth spring 32 away from the fixing block 31 is fixedly connected with the inner wall of the connecting ladder two 3. One end of the connecting ladder two 3 away from the connecting ladder one 2 is detachably connected with a support leg 4. The connecting rod 1 is provided with a clamping rod 13. The clamping rod 13 penetrates the connecting rod 1 and is slidably connected with the connecting rod 1. The outer wall of the clamping rod 13 is fixedly connected with a second spring 14 and a first guide rod 15. One end of the second spring 14 away from the clamping rod 13 is fixedly connected with the inner wall of the connecting rod 1. The first guide rod 15 penetrates the connecting rod 1 and is slidably connected with the inner wall of the connecting rod 1. A limiting block 16 is slidably connected to the inner wall of the connecting rod 1. The limiting block 16 penetrates the connecting ladder one 2 and is sleeved with the connecting ladder one 2. The outer wall of the limiting block 16 is fixedly connected with a first spring 12. One end of the first spring 12 away from the limiting block 16 is fixedly connected with the inner wall of the connecting rod 1;

[0031] Further, a chute 21 is opened on the outer wall of the connecting ladder one 2, a limiting groove 20 is opened inside the connecting ladder one 2, a notch 22 is opened on the inner wall of the chute 21, a groove 23 is opened at one end of the connecting ladder one 2 away from the connecting rod 1. A sliding block 211 is slidably connected to the chute 21. The sliding block 211 penetrates a hinge rod 11 and is rotatably connected with the hinge rod 11. One end of the hinge rod 11 away from the sliding block 211 is hinged with the connecting rod 1. A limiting rod 212 is slidably connected to the sliding block 211. One end of a third spring 213 is fixedly connected to the outer wall of the limiting rod 212. The other end of the third spring 213 is fixedly connected to the inner wall of the sliding block 211. A second guide rod 214 is fixedly connected to the outer wall of the limiting rod 212. The second guide rod 214 is slidably connected with the sliding block 211. A bolt 215 is threadedly connected to the sliding block 211;

[0032] Further, a clamping groove 231 is opened on the inner wall of the groove 23. A pressing rod 232 is slidably connected to the clamping groove 231. The pressing rod 232 penetrates the connecting ladder one 2 and is slidably connected with the connecting ladder one 2. One end of a fourth spring 233 is fixedly connected to the outer wall of the pressing rod 232. The other end of the fourth spring 233 is fixedly connected to the inner wall of the connecting ladder one 2;

[0033] In the present utility model, during use, first, the second connecting ladder 3 is butted with the groove 23 on the first connecting ladder 2. Subsequently, the second connecting ladder 3 is pressed. During this process, the fixed block 31 will be squeezed by the groove 23, causing the fixed block 31 to completely enter the interior of the second connecting ladder 3. At the same time, the fifth spring 32 undergoes elastic deformation. When the fixed block 31 coincides with the card slot 231, at this time, the fixed block 31 will be elastically snapped into the card slot 231 under the elastic force of the fifth spring 32, thereby fixing the second connecting ladder 3. This design can adjust the length of the ladder according to actual conditions. When the limit block 16 is pressed, at this time, the limit block 16 will slide inside the connecting rod 1, thereby releasing the limit on the clamping rod 13. Subsequently, the first connecting ladder 2 is rotated. During this process, the limit groove 20 will squeeze the clamping rod 13, causing the clamping rod 13 to completely enter the interior of the connecting rod 1. At the same time, the second spring 14 undergoes elastic deformation. When the first connecting ladder 2 is adjusted to the appropriate angle, the clamping rod 13 will coincide with the limit groove 20 again. At this time, the clamping rod 13 will be elastically snapped into the interior of the limit groove 20 under the elastic force of the second spring 14. Subsequently, the limit block 16 is released. At this time, the limit block 16 will return to its original position under the elastic force of the first spring 12, thereby limiting the clamping rod 13 and realizing the limitation of the first connecting ladder 2. At the same time, during the rotation of the first connecting ladder 2, the sliding block 211 will slide in the sliding groove 21 under the action of the hinge rod 11. When the sliding block 211 slides, during this process, the notch 22 will squeeze the limiting rod 212, causing the limiting rod 212 to completely enter the interior of the sliding block 211. At the same time, the third spring 213 undergoes elastic deformation. When the first connecting ladder 2 stops rotating, at this time, the limiting rod 212 will be elastically snapped into the notch 22 again under the elastic force of the third spring 213. Subsequently, the bolt 215 is screwed, so that the bolt 215 tightly abuts against the tail of the second guide rod 214, thereby limiting the sliding block 211 and improving the stability of the ladder. When disassembly is required, both hands press the extrusion rod 232, causing the extrusion rod 232 to slide in the card slot 231. During this process, the extrusion rod 232 will squeeze the fixed block 31, causing the fixed block 31 to completely disengage from the card slot 231, releasing the limit between the first connecting ladder 2 and the second connecting ladder 3. Subsequently, the second connecting ladder 3 is pulled out to complete the disassembly.

[0034] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. An aluminum alloy ladder, comprising a connecting rod (1), characterized in that: The connecting rod (1) is hingedly connected with a connecting ladder 1 (2); an end of the connecting ladder 1 (2) away from the connecting rod (1) is clamped with a connecting ladder 2 (3); an end of the connecting ladder 2 (3) away from the connecting ladder 1 (2) is detachably connected with a supporting leg (4); the connecting rod (1) is provided with: A clamping rod (13), the clamping rod (13) passing through the connecting rod (1) and being slidably connected to the connecting rod (1), the outer wall of the clamping rod (13) being fixedly connected to a second spring (14) and a first guide rod (15); Spring 2 (14), wherein one end of the spring 2 (14) away from the clamping rod (13) is fixedly connected to the inner wall of the connecting rod (1); A guide rod (15) passes through the connecting rod (1) and is slidably connected to the inner wall of the connecting rod (1).

2. An aluminum alloy ladder according to claim 1, characterized in that: The inner wall of the connecting rod (1) is slidably connected to a limit block (16); the limit block (16) penetrates the connecting ladder (2) and is sleeved with the connecting ladder (2); the outer wall of the limit block (16) is fixedly connected to a spring (12); one end of the spring (12) away from the limit block (16) is fixedly connected to the inner wall of the connecting rod (1).

3. The aluminum alloy ladder according to claim 1, characterized in that: The outer wall of the connecting ladder 1 (2) is provided with a slide groove (21), the interior of the connecting ladder 1 (2) is provided with a limit groove (20), the inner wall of the slide groove (21) is provided with a notch (22), and the end of the connecting ladder 1 (2) away from the connecting rod (1) is provided with a groove (23).

4. The aluminum alloy ladder according to claim 3, characterized in that: The slide groove (21) is slidably connected to a sliding block (211), the sliding block (211) passes through the hinge rod (11) and is rotatably connected to the hinge rod (11), one end of the hinge rod (11) away from the sliding block (211) is hinged to the connecting rod (1), the sliding block (211) is slidably connected to a limit rod (212), the outer wall of the limit rod (212) is fixedly connected to one end of a spring three (213), the other end of the spring three (213) is fixedly connected to the inner wall of the sliding block (211), the outer wall of the limit rod (212) is fixedly connected to a guide rod two (214), the guide rod two (214) is slidably connected to the sliding block (211), and the sliding block (211) is threadedly connected to a bolt (215).

5. The aluminum alloy ladder according to claim 3, characterized in that: The inner wall of the groove (23) is provided with a slot (231), the slot (231) is slidably connected to a squeezing rod (232), the squeezing rod (232) passes through the connecting ladder one (2) and is slidably connected to the connecting ladder one (2), the outer wall of the squeezing rod (232) is fixedly connected to one end of a spring four (233), and the other end of the spring four (233) is fixedly connected to the inner wall of the connecting ladder one (2).

6. The aluminum alloy ladder according to claim 1, characterized in that: The connecting ladder 2 (3) is penetrated by the fixing block (31) and is slidably connected to the fixing block (31); a spring 5 (32) is fixedly connected to the outer wall of the fixing block (31); and one end of the spring 5 (32) away from the fixing block (31) is fixedly connected to the inner wall of the connecting ladder 2 (3).

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