Portable insulating working ladder for aviation maintenance and repair

Abstract

The utility model relates to the technical field of insulating working ladders, and discloses a portable insulating working ladder for aviation maintenance and repair, which comprises a staircase, an operating platform is fixedly connected to the top of the staircase, a support rod is fixedly connected to the outer wall of the operating platform, a rotating shaft is rotatably connected to the inside of the support rod, a lock hole is formed in the inside of the support rod, and the operating platform is fixedly connected to the operating platform. A handrail is rotationally connected to the outer wall of the rotating shaft, a locking assembly is arranged in the supporting rod, a reset assembly is arranged in the handrail, and a limiting assembly is arranged in the handrail. The locking assembly comprises a plug pin, and the plug pin is arranged in the handrail in a penetrating mode. According to the working ladder, the clamping plates are separated from the lock holes through the plug pins, so that the handrails rotate by taking the rotating shafts as the circle centers to be folded, the effect of conveniently bending the handrails is achieved, and the problem that when a working ladder is used, if large-size parts need to be installed, an operator inconveniently installs the parts through the handrails on a maintenance platform is solved; and the convenience of the insulating working ladder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating work ladders, in particular to a portable insulating work ladder for aviation maintenance and repair. Background Art

[0002] An insulated work ladder is a ladder specially used in work environments with special safety requirements, such as power engineering and high-voltage operations. It is made of insulating materials and can effectively isolate current, thereby protecting operators from the risk of electric shock. Aviation maintenance involves the maintenance of aircraft power systems (such as navigation lights, signal lights and other electrical equipment). In order to effectively isolate the current and avoid electric shock to workers when repairing high-voltage components, and provide necessary electrical safety protection, a portable insulated work ladder is needed for aviation maintenance.

[0003] Insulated work ladders can be divided into several types, namely folding insulated work ladders, telescopic insulated work ladders and platform insulated work ladders. These types of portable insulated work ladders provide operators with a safe working environment based on the needs of aviation maintenance scenarios. They are easy to move and can flexibly adapt to various maintenance needs. Platform-type insulated work ladders have a flat operating platform where operators can stand for maintenance, providing more stable support. They are suitable for long-term high-altitude operations or working environments that require the placement of tools.

[0004] However, existing technologies present a significant problem: when operators use work ladders for maintenance and need to install larger parts, the fixed railing design often hinders their operation, preventing them from completing their work smoothly and reducing work efficiency and convenience. Therefore, designing a more flexible and adaptable work ladder has become a key issue in improving the efficiency of aviation maintenance operations. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a portable insulated work ladder for aviation maintenance and repair, aiming to improve the problem that when using the work ladder, when installing larger parts, the maintenance platform has railings that make it inconvenient for operators to install parts.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a portable insulated work ladder for aviation maintenance and repair, comprising a staircase, the top of the staircase is fixedly connected to an operating platform, the outer wall of the operating platform is fixedly connected to a support rod, the support rod is rotatably connected to a rotating shaft, a lock hole is provided inside the support rod, the outer wall of the rotating shaft is rotatably connected to a railing, a locking assembly is provided inside the railing, a reset assembly is provided inside the railing, and a limit assembly is provided inside the railing;

[0007] The locking assembly includes a latch, which is inserted into the railing. One end of the latch is fixedly connected to a splint, and the latch is engaged with a lock hole.

[0008] As a further description of the above technical solution:

[0009] The limiting assembly includes a second limiting plate, and the interior of the second limiting plate is fixedly connected to the outer wall of the latch.

[0010] As a further description of the above technical solution:

[0011] The reset assembly includes a first spring, which is sleeved on the outer wall of the latch, one end of the first spring is fixedly connected to one end of the limiting plate 2, and the other end of the first spring is fixedly connected to the inside of the railing.

[0012] As a further description of the above technical solution:

[0013] A symmetrically arranged gear block 1 is fixedly connected inside the operating platform, and a telescopic plate is slidably connected inside the operating platform.

[0014] As a further description of the above technical solution:

[0015] One side of the telescopic plate is fixedly connected to a limiting block, and an outer wall of the limiting block is slidably connected to the inside of the operating platform.

[0016] As a further description of the above technical solution:

[0017] A limiting slot is provided inside the limiting block, a limiting plate 1 is slidably connected inside the limiting block, and the limiting plate 1 is slidably connected inside the limiting slot.

[0018] As a further description of the above technical solution:

[0019] One side of the limiting plate 1 is fixedly connected with the tooth block 2, and the tooth block 2 is embedded with the tooth block 1.

[0020] As a further description of the above technical solution:

[0021] A telescopic rod is provided inside the limit block, and a second spring is sleeved on the outer wall of the telescopic rod. One end of the telescopic rod and the second spring are fixedly connected to the other side of the limit plate, and the other end of the telescopic rod and the second spring are fixedly connected to the inside of the limit block.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, first, the splint is separated from the lock hole by the latch, and then the railing is rotated with the rotating shaft as the center of the circle to fold the railing, which achieves the effect of facilitating the bending of the railing. It solves the problem that when using a work ladder, if large-sized parts are to be installed, the maintenance platform passes through the railing, making it inconvenient for the operator to install parts, thereby improving the convenience of the insulated work ladder.

[0024] 2. In the utility model, the telescopic plate is limited in the operating platform by the limit block, and the tooth block 2 in the limit block is engaged with the tooth block 1, thereby achieving the effect of adjusting the platform area, solving the problem that the area is small and inconvenient for small operations when the operator uses it, and improving the practicality of the insulating work ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a portable insulated work ladder for aviation maintenance and repair proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of the folded railing state of a portable insulated work ladder for aviation maintenance and repair proposed by the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the handrail of a portable insulated work ladder for aviation maintenance and repair proposed by the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of the operating platform of a portable insulated work ladder for aviation maintenance and repair proposed by the present invention;

[0029] Figure 5 for Figure 4 Schematic diagram of the locally enlarged structure at point A in the middle.

[0030] Legend:

[0031] 1. Stairs; 2. Operating platform; 3. Support rod; 4. Handrail; 5. Keyhole; 6. Rotating shaft; 7. Clamp; 8. Latch; 9. First spring; 10. Gear block 1; 11. Telescopic plate; 12. Limit block; 13. Limit slot; 14. Limit plate 1; 15. Gear block 2; 16. Telescopic rod; 17. Second spring; 18. Limit plate 2. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1-Figure 3 The utility model provides an embodiment of a portable insulated work ladder for aviation maintenance and repair, comprising a staircase 1, wherein the top of the staircase 1 is fixedly connected to an operating platform 2, an outer wall of the operating platform 2 is fixedly connected to a support rod 3, an internal rotational connection of a rotating shaft 6 is formed in the support rod 3, a lock hole 5 is formed in the support rod 3, an outer wall of the rotating shaft 6 is rotatably connected to a handrail 4, a locking assembly is provided in the support rod 3, a reset assembly is provided in the handrail 4, and a limit assembly is provided in the handrail 4;

[0034] The locking assembly includes a latch 8, which is inserted into the interior of the railing 4. One end of the latch 8 is fixedly connected to a splint 7. The latch 8 is engaged with the lock hole 5 to fix the railing 4 and prevent it from accidentally loosening during use. The limiting assembly includes a second limiting plate 18. The second limiting plate 18 is internally fixedly connected to the outer wall of the latch 8 to ensure that the latch 8 remains stable during use and limit its excessive movement. The reset assembly includes a first spring 9, which is sleeved on the outer wall of the latch 8. One end of the first spring 9 is fixedly connected to one end of the second limiting plate 18, and the other end is fixedly connected to the interior of the railing 4 to provide the necessary restoring force to ensure that the railing 4 can automatically return to its original position and lock when not needed, thereby enhancing operational safety.

[0035] Specifically, when the railing 4 needs to be folded, it is only necessary to squeeze the splint 7 toward the railing 4. By squeezing the splint 7, the pin 8 will separate from the lock hole 5, so that the railing 4 can rotate around the center of the rotation axis 6, thereby realizing the folding function of the railing 4, effectively saving space, and facilitating storage and carrying. When the railing 4 is folded and reset again, the railing 4 is directly rotated around the center of the rotation axis 6 so that it is placed perpendicular to the support rod 3. The splint 7 will be retracted into the railing 4 through the pin 8, and then the splint 7 is released. With the help of the rebound force of the first spring 9, the limit plate 18 is driven to push the pin 8 to reset, so that the pin 8 is firmly embedded in the lock hole 5, locking the railing 4 in place, ensuring that it is stable and safe after reset.

[0036] Reference Figure 4 and Figure 5The limit block 12 is internally connected to the limit plate 14, and the limit plate 14 is slidably connected to the limit plate 14, so that the limit plate 14 can be flexibly adjusted to the desired area during operation. The second spring 17 is provided with a sleeve on the outer wall of the limit plate 12, and the second spring 17 provides the necessary reaction force to ensure that the limit block 12 can automatically reset after being stressed, thereby returning to its initial state. One end of the telescopic rod 16 and the second spring 17 are fixedly connected to the other side of the limit plate 14, and the other end of the telescopic rod 16 and the second spring 17 are fixedly connected to the inside of the limit block 12. This design ensures smoothness and stability when adjusting the area of ​​the operating platform 2, thereby improving the safety and convenience of operation.

[0037] Specifically, when the area of ​​the operating platform 2 needs to be adjusted, it is only necessary to gently pull the telescopic plate 11 out from the inside of the operating platform 2 to expand the usable space of the operating platform 2. During the withdrawal process, the telescopic plate 11 is effectively limited inside the operating platform 2 by the limit block 12. At the same time, the tooth block 2 15 set in the limit block 12 is precisely engaged with the tooth block 10 fixed on the operating platform 2. The tooth block 2 15 is further limited by the limit plate 14 in the limit groove 13 and supported by the tension provided by the second spring 17, so that the tooth block 2 15 can be firmly embedded in the tooth block 10, ensuring that the telescopic plate 11 is stable after being pulled out, thereby achieving the effect of conveniently adjusting the area of ​​the operating platform 2 and making the platform more adaptable to different work needs.

[0038] Working principle: When using the portable insulated work ladder for aviation maintenance and repair, first, when the handrail 4 needs to be folded, it is only necessary to squeeze the splint 7 toward the handrail 4, and then the splint 7 is separated from the lock hole 5 by the latch 8, so that the handrail 4 is rotated with the rotation axis 6 as the center of the circle to fold the handrail 4, thereby achieving the effect of folding the handrail 4. When the handrail 4 is folded up, it is only necessary to directly rotate the handrail 4 with the rotation axis 6 as the center of the circle, so that the handrail 4 and the support rod 3 are placed perpendicularly, and the latch 8 is retracted into the handrail 4 through the splint 7. Then, after releasing the splint 7, the latch 8 is driven to reset through the limit plate 2 18 by the tension support of the first spring 9, so that the latch 8 is embedded in the lock hole 5 and locked;

[0039] In addition, when it is necessary to adjust the area of ​​the operating platform 2, it is only necessary to pull the telescopic plate 11 out of the operating platform 2. The telescopic plate 11 is limited in the operating platform 2 by the limit block 12, and the tooth block 2 15 in the limit block 12 is engaged with the tooth block 1 10. The tooth block 2 15 is limited in the limit groove 13 by the limit plate 1 14, and the tension support of the second spring 17 makes the tooth block 2 15 embedded in the tooth block 10 stable, thereby achieving the effect of adjusting the area of ​​the operating platform 2.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A portable insulated work ladder for aviation maintenance and repair, comprising a staircase (1), characterized in that: The top of the staircase (1) is fixedly connected to an operating platform (2), the outer wall of the operating platform (2) is fixedly connected to a support rod (3), the support rod (3) is internally rotatably connected to a rotating shaft (6), a lock hole (5) is provided inside the support rod (3), the outer wall of the rotating shaft (6) is rotatably connected to a handrail (4), a locking component is provided inside the support rod (3), a reset component is provided inside the handrail (4), and a limit component is provided inside the handrail (4); The locking assembly comprises a latch (8), the latch (8) being inserted into the railing (4), one end of the latch (8) being fixedly connected to a splint (7), and the latch (8) being engaged with the lock hole (5).

2. A portable insulating work ladder for aviation maintenance and repair according to claim 1, characterized in that: The limiting assembly includes a second limiting plate (18), and the interior of the second limiting plate (18) is fixedly connected to the outer wall of the latch (8).

3. The portable insulating work ladder for aviation maintenance and repair according to claim 1, characterized in that: The reset assembly includes a first spring (9), which is sleeved on the outer wall of the latch (8), one end of the first spring (9) is fixedly connected to one end of the second limit plate (18), and the other end of the first spring (9) is fixedly connected to the inside of the railing (4).

4. The portable insulating work ladder for aviation maintenance and repair according to claim 1, characterized in that: A symmetrically arranged tooth block (10) is fixedly connected to the interior of the operating platform (2), and a telescopic plate (11) is slidably connected to the interior of the operating platform (2).

5. A portable insulating work ladder for aviation maintenance and repair according to claim 4, characterized in that: One side of the telescopic plate (11) is fixedly connected to a limiting block (12), and the outer wall of the limiting block (12) is slidably connected to the inside of the operating platform (2).

6. The portable insulating work ladder for aviation maintenance and repair according to claim 5, characterized in that: A limiting groove (13) is provided inside the limiting block (12), and a limiting plate (14) is slidably connected inside the limiting block (12), and the limiting plate (14) is slidably connected inside the limiting groove (13).

7. A portable insulating work ladder for aviation maintenance and repair according to claim 6, characterized in that: One side of the limiting plate 1 (14) is fixedly connected with a tooth block 2 (15), and the tooth block 2 (15) is embedded with the tooth block 1 (10).

8. The portable insulating work ladder for aviation maintenance and repair according to claim 5, characterized in that: A telescopic rod (16) is provided inside the limit block (12), and a second spring (17) is sleeved on the outer wall of the telescopic rod (16). One end of the telescopic rod (16) and the second spring (17) are fixedly connected to the other side of the limit plate (14), and the other ends of the telescopic rod (16) and the second spring (17) are fixedly connected to the inside of the limit block (12).

Images