Portable insulating ladder assembly for electric power engineering

Abstract

The utility model discloses a portable insulating ladder assembly for electric power engineering, which belongs to the technical field of ladder assemblies and comprises a handheld rod, connecting blocks are fixedly connected to two ends of the handheld rod, a top ladder assembly is fixedly mounted below each connecting block, and a first connecting rod is fixedly connected to the top between the two top ladder assemblies. According to the portable insulating ladder assembly for the electric power engineering, bolts penetrate through corresponding positioning holes and then nuts are tightened, so that a worker can conveniently move and carry the ladder assembly, during subsequent unfolding for working, the top end ladder assembly, the middle end ladder assembly and the bottom end ladder assembly are unfolded, and after the positioning holes formed in the two sides of the top end ladder assembly, the middle end ladder assembly and the bottom end ladder assembly are sequentially aligned, the ladder assembly can be conveniently moved and carried. Bolts penetrate through the corresponding positioning holes to tighten nuts, and the top end ladder assembly, the middle end ladder assembly and the bottom end ladder assembly are clamped and fixed, so that the extension lengths of the top end ladder assembly, the middle end ladder assembly and the bottom end ladder assembly can be conveniently and randomly adjusted according to use requirements.

Description

Technical Field

[0001] This utility model belongs to the field of ladder technology, specifically an insulated ladder for power engineering that is easy to carry. Background Technology

[0002] Insulated ladders are widely used as specialized climbing tools in power engineering, telecommunications engineering, electrical engineering, and hydropower engineering. The excellent insulation properties of insulated ladders maximize worker safety. As a tool to assist personnel in their work, they are used to inspect and maintain electrical equipment at different heights. However, existing insulated ladders have fixed lengths, making them difficult to extend, retract, and store, and inconvenient to carry. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a portable insulated ladder for power engineering, which solves the problem that when personnel are inspecting and maintaining electrical equipment at different heights, they need to climb insulated ladders of different heights. Since the length of existing insulated ladders is fixed, it is difficult to extend and retract them, making them inconvenient to carry.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a portable insulated ladder for power engineering, comprising a handheld rod, with connecting blocks fixedly connected to both ends of the handheld rod, a top ladder fixedly installed below each connecting block, a first connecting rod fixedly connected to the top between two top ladders, a middle ladder sleeved on the surface of each top ladder, a second connecting rod fixedly connected to the top between two middle ladders, a bottom ladder sleeved on the surface of each middle ladder, a third connecting rod fixedly connected to the top between two bottom ladders, and multiple positioning holes respectively provided on both sides of the surfaces of the top, middle, and bottom ladders, with bolts inserted into the positioning holes, and a nut provided at one end of each bolt passing through the positioning hole.

[0005] As a further embodiment of this utility model: the bottom of both sides of the top ladder and the middle ladder are respectively provided with limiting protrusions, and both sides of the middle ladder and the bottom ladder are provided with sliding grooves, and the limiting protrusions slide inside the sliding grooves.

[0006] As a further embodiment of this utility model: both ends of the surface of the first connecting rod are fixedly connected to connecting plates, a crossbar is rotatably connected between the two connecting plates, both sides of the surface of the crossbar are fixedly connected to connecting rings, and the surfaces of the two connecting rings are fixedly connected to threaded rods.

[0007] As a further embodiment of this utility model: threaded rods are fixedly connected to the surfaces of both connecting rings, and internal threaded cylinders are sleeved on the surfaces of the threaded rods. Support bars are rotatably connected to the ends of the two internal threaded cylinders away from the threaded rods.

[0008] As a further embodiment of this utility model: a slot is provided on one side of the connecting plate, and a through hole is provided on the surface of one end of the connecting plate, and the through hole penetrates the connecting plate.

[0009] As a further embodiment of this utility model: multiple limiting holes are provided at both ends of the crossbar, and the positions of the limiting holes and the through holes correspond to each other; a fixing pin is provided on one side of the connecting plate, and the fixing pin corresponds to the positions of the slot and the through hole.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This portable insulated ladder for power engineering uses a top, middle, and bottom ladder frame with bolts. When moved with workers, the bottom ladder frame sequentially houses the middle and top ladder frames, effectively shrinking them. Bolts are then passed through corresponding positioning holes and tightened with nuts, facilitating movement and transport. When deployed for work, the top, middle, and bottom ladder frames are unfolded, aligning the positioning holes on both sides. Bolts are then passed through these holes and tightened with nuts to secure the ladder frames. This allows for easy adjustment of the extended length of the top, middle, and bottom ladder frames according to usage requirements.

[0012] 2. This portable insulated ladder for power engineering features threaded rods, internal threaded cylinders, fixing pins, and limiting holes. During use, rotating the two internal threaded cylinders adjusts the distance between the support bar and the crossbar. Simultaneously, the support bar is lifted and placed against the wall. After the crossbar rotates to a suitable angle between the two connecting plates, the fixing pin is inserted into the slot and through hole, with one end passing through the through hole and into the limiting hole to secure the crossbar. This allows the support bar to support the top of the ladder, and adjusting the distance between the ladder and the wall ensures that personnel can inspect and maintain objects far from the wall. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the internal threaded cylinder and support bar of this utility model;

[0015] Figure 3 This utility model Figure 2Enlarged structural diagram at point A in the middle image;

[0016] In the diagram: 1. Handheld rod; 2. Connecting block; 3. Top ladder; 4. First connecting rod; 5. Middle ladder; 6. Second connecting rod; 7. Bottom ladder; 8. Third connecting rod; 9. Positioning hole; 10. Bolt; 11. Nut; 12. Sliding groove; 13. Limiting protrusion; 14. Connecting plate; 15. Crossbar; 16. Connecting ring; 17. Threaded rod; 18. Internal threaded cylinder; 19. Support bar; 20. Fixing pin; 21. Limiting hole; 22. Slot; 23. Through hole. Detailed Implementation

[0017] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0018] like Figure 1-3 As shown, this utility model provides a technical solution: a portable insulated ladder for power engineering, including a handrail 1, with connecting blocks 2 fixedly connected to both ends of the handrail 1, a top ladder 3 fixedly installed below each connecting block 2, a first connecting rod 4 fixedly connected to the top between two top ladders 3, a middle ladder 5 sleeved on the surface of each top ladder 3, and a bottom ladder 7 sleeved on the surface of each middle ladder 5. Through the arrangement of the top ladder 3, middle ladder 5, and bottom ladder 7, during the carrying process, the internal space of the bottom ladder 7 can be used to store the top ladder 3 and middle ladder 5 in sequence, thereby reducing the space occupied by the ladder and facilitating carrying by personnel.

[0019] Limiting protrusions 13 are provided at the bottom of both sides of the top ladder 3 and the middle ladder 5. Sliding grooves 12 are provided on both sides of the middle ladder 5 and the bottom ladder 7. The limiting protrusions 13 slide inside the sliding grooves 12. With the setting of the sliding grooves 12 and the limiting protrusions 13, when the top ladder 3 and the middle ladder 5 are pulled out from the bottom ladder 7 for extension during use, the limiting protrusions 13 slide inside the corresponding sliding grooves 12, thereby limiting the top ladder 3 and the middle ladder 5, ensuring that the top ladder 3 and the middle ladder 5 will not be offset or misaligned when pulled out from the bottom ladder 7, thus preventing them from falling off.

[0020] A second connecting rod 6 is fixedly connected to the top of the two middle ladder frames 5, and a third connecting rod 8 is fixedly connected to the top of the two bottom ladder frames 7. The second connecting rod 6 and the third connecting rod 8 are used as a stepping area during use.

[0021] Multiple positioning holes 9 are provided on both sides of the surface of the top ladder 3, the middle ladder 5 and the bottom ladder 7. Bolts 10 are inserted into the positioning holes 9. One end of the bolt 10 passes through the positioning hole 9 and is provided with a nut 11. By setting the positioning holes 9, the top ladder 3, the middle ladder 5 and the bottom ladder 7 can be aligned with the positioning holes 9 during the extension process. The bolts 10 can be inserted into the positioning holes 9 to lock and fix the top ladder 3, the middle ladder 5 and the bottom ladder 7.

[0022] Both ends of the surface of the first connecting rod 4 are fixedly connected to connecting plates 14. A crossbar 15 is rotatably connected between the two connecting plates 14. Both sides of the surface of the crossbar 15 are fixedly connected to connecting rings 16. Threaded rods 17 are fixedly connected to the surfaces of the two connecting rings 16. An internal threaded cylinder 18 is sleeved on the surface of the threaded rod 17. A support bar 19 is rotatably connected to the end of the two internal threaded cylinders 18 away from the threaded rod 17. Through the setting of the threaded rod 17 and the internal threaded cylinder 18, in use, the distance between the support bar 19 and the crossbar 15 can be adjusted by rotating the two internal threaded cylinders 18 in the opposite direction, thereby controlling the distance between the top ladder 3 and the wall, making it convenient for personnel to inspect and maintain electrical equipment that is far from the wall.

[0023] A slot 22 is provided on one side of the connecting plate 14, and a through hole 23 is provided on the surface of one end of the connecting plate 14, and the through hole 23 penetrates the connecting plate 14. Multiple limit holes 21 are provided at both ends of the crossbar 15. By setting the limit holes 21, it is convenient to form different included angles between the threaded rod 17 and the top ladder 3, so as to facilitate the adjustment of the distance between the top ladder 3 and the wall.

[0024] The limiting hole 21 and the through hole 23 are positioned correspondingly. A fixing pin 20 is provided on one side of the connecting plate 14, and the fixing pin 20 is positioned corresponding to the slot 22 and the through hole 23. With the setting of the slot 22 and the through hole 23, when one end of the fixing pin 20 is inserted into the slot 22, the other end of the fixing pin 20 passes through the through hole 23 and is inserted into the corresponding limiting hole 21, thereby clamping and fixing the crossbar 15.

[0025] The working principle of this utility model is as follows: Before use, remove the bolts 10 inside the positioning holes 9 on both sides of the top ladder 3, middle ladder 5, and bottom ladder 7. Then, by pulling the lever 1, the top ladder 3 is pulled out from inside the middle ladder 5, and then the middle ladder 5 can be pulled out from inside the bottom ladder 7. Adjust the length of the top ladder 3, middle ladder 5, and bottom ladder 7 according to the actual usage environment. After aligning the positioning holes 9 on both sides of the top ladder 3, middle ladder 5, and bottom ladder 7, insert the bolts 10 into the corresponding positioning holes 9 of the top ladder 3, middle ladder 5, and bottom ladder 7. Tighten the other end of the bolt 10 through the positioning hole 9 with the nut 11. The extension length of the end ladder frame 7 is fixed. Then, the fixing pins 20 inserted into both sides of the connecting plate 14 are removed. The crossbar 15 is rotated to adjust the angle formed between the threaded rod 17 and the top ladder frame 3. After aligning the limiting hole 21 with the through hole 23, the fixing pins 20 are inserted into the slots 22 and through holes 23 on both sides of the connecting plate 14. The longer end of the fixing pin 20 will pass through the through hole 23 and insert into the interior of the limiting hole 21 to fix the angle formed between the threaded rod 17 and the top ladder frame 3. The inner threaded cylinder 18 is rotated to adjust the distance between the support bar 19 and the crossbar 15. Then, the support bar 19 is pressed tightly against the wall so that the ladder frame is tilted at a certain angle to the wall. When personnel climb the ladder frame, electrical equipment at a certain distance from the wall can be inspected and maintained.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A portable insulating ladder stand for electrical engineering, comprising a hand-held pole (1), characterized in that: Both ends of the handheld rod (1) are fixedly connected with connecting blocks (2), and the lower part of each connecting block (2) is fixedly provided with a top ladder frame (3), respectively.

2. The portable insulating ladder stand of claim 1, wherein: The bottom of each top ladder frame (3) is provided with a middle ladder frame (5), and the top of the two middle ladder frames (5) is fixedly connected with a second connecting rod (6).

3. The portable insulating ladder stand of claim 1, wherein: The surface of each middle ladder frame (5) is sleeved with a bottom ladder frame (7), and the top of the two bottom ladder frames (7) is fixedly connected with a third connecting rod (8).

4. The portable electrical engineering insulating ladder stand of claim 3, wherein: The two sides of the surface of the top ladder frame (3), the middle ladder frame (5) and the bottom ladder frame (7) are respectively provided with a plurality of positioning holes (9), and the inside of the positioning hole (9) is provided with a bolt (10).

5. The portable electrical engineering insulating ladder stand of claim 3, wherein: The bottom of the two sides of the top ladder frame (3) and the middle ladder frame (5) is respectively provided with a limiting block (13), and the middle ladder frame (5) and the bottom ladder frame (7) are provided with a sliding groove (12) on the two sides.

6. The portable electrical engineering insulating ladder stand of claim 5, wherein: The surface of the first connecting rod (4) is fixedly connected with a connecting plate (14) at both ends, and the two connecting plates (14) are rotatably connected with a cross bar (15). The surface of the cross bar (15) is fixedly connected with a connecting ring (16) on both sides, and the surface of the two connecting rings (16) is fixedly connected with a threaded rod (17). The surface of the threaded rod (17) is sleeved with an internal thread cylinder (18), and the end of the two internal thread cylinders (18) away from the threaded rod (17) is rotatably connected with a supporting strip (19). One side of the connecting plate (14) is provided with a slot (22), and the surface of one end of the connecting plate (14) is provided with a through hole (23) penetrating through the connecting plate (14). The two ends of the cross bar (15) are provided with a plurality of limiting holes (21), and the limiting holes (21) correspond to the positions of the through holes (23). One side of the connecting plate (14) is provided with a fixed bolt (20), and the fixed bolt (20) corresponds to the positions of the slot (22) and the through hole (23).

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