A power engineering emergency repair ladder
By designing a foldable power engineering emergency repair ladder, the problems of complex structure, inconvenience in transportation and storage in existing technologies have been solved, and the portability and stability have been improved, adapting to the usage needs of different heights and scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LIHANG ELECTRIC POWER CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-02
AI Technical Summary
Existing power engineering emergency repair ladders have complex structures, are inconvenient to move and store, and occupy a large area, failing to meet the needs for portable use.
An emergency repair ladder for power engineering, including a climbing ladder and a storage base, was designed. The ladder can be folded and its angle adjusted by combining a mounting shaft, an adjusting rod, and a support rod. It is fixed by fixing bolts and limit holes to ensure stability during use.
It achieves portable folding of the ladder, reducing the space occupied when not in use, and can adjust the angle and height as needed to adapt to the usage needs of different scenarios, improving the stability and portability of use.
Smart Images

Figure CN224314900U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power construction technology, specifically to a power engineering emergency repair ladder. Background Technology
[0002] In power engineering, both power maintenance and installation require climbing to a certain height, and personnel need to use tools to carry out the work. Therefore, emergency repair ladders are needed during power engineering emergency repairs.
[0003] In the prior art, such as Chinese Patent Publication No. CN222542337U, a method is disclosed that includes a chassis and a suction cup base. The suction cup base is fixedly installed on the bottom of the chassis, and an extension mechanism is provided on the top of the chassis. The extension mechanism includes an extension member, and the extension member includes a load base. The load base is movably connected to the top of the chassis. Limiting blocks are fixedly installed on the surface of the load base. The limiting blocks are distributed on both sides of the load base, and a first ladder is provided between the limiting blocks. The first ladder is arranged parallel to the load base.
[0004] The aforementioned patented technology ensures that the device moves in a direction parallel to the load base by using guide grooves on both sides of the first ladder and limiting the movement of the limit block, thereby increasing the maximum height of the device. However, due to the complex structure of the ladder, it is inconvenient to transport and use it, and the ladder cannot be folded and stored, resulting in a large footprint when the device is idle, which is not convenient for actual production and use. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an emergency repair ladder for power engineering, which solves the problems mentioned in the background section.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a power engineering emergency repair ladder, comprising a ladder and a storage base. An installation shaft is fixedly installed inside the ladder. Extension plates are fixedly connected to both the front and rear ends of the ladder. A connecting seat is fixedly installed on the top of the ladder. The top of the storage base has a storage groove and a recess. A cavity is formed inside the storage base. A connecting frame is fixedly connected to one side of the outer wall of the storage base. A sliding block is slidably installed on the top of the connecting frame. An adjusting rod is rotatably installed inside the recess. A through hole is formed on the surface of the adjusting rod. A fixing bolt is installed inside the through hole. A support rod is slidably installed inside the adjusting rod. The top of the support rod extends outward to the outer end of the adjusting rod. Two handles are rotatably installed on one side of the storage base. A bidirectional lead screw is fixedly connected to one side of each handle. The other end of the bidirectional lead screw is rotatably connected to the inner wall of the cavity.
[0007] Preferably, the mounting shaft is rotatably mounted inside the storage slot, the bottom of the extension plate has a limiting tooth groove, and the top of the support rod is angled.
[0008] Preferably, the surface of the support rod is provided with a number of positioning holes at equal intervals, and the fixing bolt is provided inside both the through hole and the positioning hole.
[0009] Preferably, a rotating shaft is fixedly connected to the bottom of the adjusting rod, the rotating shaft is rotatably installed inside the groove, and a fixed gear is fixedly installed on the surface of the rotating shaft.
[0010] Preferably, both ends of the bidirectional lead screw are threaded with threaded sleeves, and the tops of the two threaded sleeves are rotatably connected to movable rods. The tops of the movable rods are rotatably connected to telescopic connecting rods, and the tops of the telescopic connecting rods are fixedly connected to limit blocks.
[0011] Preferably, the top of the connector is provided with a through groove, which is T-shaped.
[0012] Preferably, a limiting plate is fixedly connected to the top of the sliding block, and the shape of the limiting plate matches the wide opening shape of the through groove.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. In this utility model, by rotating the mounting shaft inside the storage slot, the ladder can be folded and stored inside the storage slot, thereby reducing the space occupied by the ladder when it is not in use. By adjusting the angle of the adjusting rod and the support rod, the extension plate can be supported and limited, so that the ladder can be erected for climbing. The support rod is fixed by fixing bolts, and the length of the support rod can be adjusted by adjusting the position of the positioning hole, thereby adjusting the use angle of the ladder for convenient use in different scenarios.
[0015] 2. In this utility model, through the cooperation between the rotating shaft and the telescopic connecting rod, rotating the handle causes the telescopic connecting rod to move upward, and the fixed toothed disc and the limiting toothed block engage and connect, which can limit and fix the rotating shaft, thereby fixing the angle of the adjusting rod and the support rod, so as to improve the stability of the ladder during use. Attached Figure Description
[0016] Figure 1 This utility model provides a schematic diagram of the main three-dimensional structure of an emergency repair ladder for power engineering.
[0017] Figure 2 This utility model provides a schematic diagram of the three-dimensional structure of a ladder for emergency repairs in power engineering.
[0018] Figure 3This utility model provides a schematic diagram of the disassembled support rod structure of an emergency repair ladder for power engineering.
[0019] Figure 4 This utility model provides an enlarged structural diagram of point A of an emergency repair ladder for power engineering.
[0020] Figure 5 This utility model provides a partial cross-sectional structural diagram of the storage base of an emergency repair ladder for power engineering.
[0021] Figure 6 This utility model provides a schematic diagram of the connecting seat fixing structure for an emergency repair ladder in power engineering.
[0022] In the diagram: 1. Ladder; 11. Mounting shaft; 12. Extension plate; 121. Limiting tooth groove; 13. Connecting seat; 131. Through groove; 2. Storage base; 201. Storage slot; 202. Groove; 203. Cavity; 21. Connecting frame; 22. Sliding block; 23. Limiting plate; 3. Adjusting rod; 301. Through hole; 31. Fixing bolt; 32. Rotating shaft; 33. Fixing toothed disc; 4. Support rod; 401. Positioning hole; 5. Turning handle; 51. Two-way lead screw; 52. Threaded sleeve; 53. Movable rod; 54. Telescopic connecting rod; 55. Limiting block. Detailed Implementation
[0023] 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.
[0024] Example 1
[0025] like Figures 1-6As shown, this utility model provides a technical solution: a power engineering emergency repair ladder, including a ladder 1 and a storage base 2. An installation shaft 11 is fixedly installed inside the ladder 1. Extension plates 12 are fixedly connected to both the front and rear ends of the ladder 1. A connecting seat 13 is fixedly installed on the top of the ladder 1. The top of the storage base 2 has a storage groove 201 and a recess 202 respectively. A cavity 203 is formed inside the storage base 2. A connecting frame 21 is fixedly connected to one side of the outer wall of the storage base 2. A sliding block 22 is slidably installed on the top of the connecting frame 21. An adjusting rod 3 is rotatably installed inside the recess 202. A through hole 301 is formed on the surface of the adjusting rod 3. The inner surface of the through hole 301... The unit is equipped with fixing bolts 31. A support rod 4 is slidably installed inside the adjusting rod 3. The top of the support rod 4 extends outward to the outer end of the adjusting rod 3. Two handles 5 are rotatably installed on one side of the storage base 2. A two-way screw 51 is fixedly connected to one side of the handle 5. The other end of the two-way screw 51 is rotatably connected to the inner wall of the cavity 203. The mounting shaft 11 is rotatably installed inside the storage groove 201. A limiting tooth groove 121 is opened at the bottom of the extension plate 12. The top of the support rod 4 is angled. Several positioning holes 401 are equidistantly opened on the surface of the support rod 4. The fixing bolts 31 are simultaneously installed through the through hole 301 and the positioning holes 401.
[0026] In this embodiment, the mounting shaft 11 is rotatably mounted inside the storage groove 201, allowing the ladder 1 to rotate around the mounting shaft 11 as the center, thus facilitating the adjustment of the ladder 1's angle. The adjusting rod 3 is housed inside the groove 202 and can rotate. Adjusting the angle of the adjusting rod 3 allows the support rod 4 to support and limit the extension plate 12. The top of the support rod 4 engages with the limiting tooth groove 121, ensuring the stability of the support rod 4 against the extension plate 12, thereby keeping the ladder 1 fixed when tilted. The fixing bolt 31, passing through the through hole 301 and the positioning hole 401, can fix and limit the support rod 4. The fixing bolt 31 requires the use of a nut. By removing the fixing bolt 31, the fixation of the support rod 4 can be released. By pulling the support rod 4 outward and adjusting the alignment of the through hole 301 and the positioning hole 401, the height of the support rod 4 can be adjusted, thereby adjusting the tilt angle of the ladder 1 accordingly to suit different height scenarios.
[0027] Example 2
[0028] like Figures 1-6As shown, a rotating shaft 32 is fixedly connected to the bottom of the adjusting rod 3. The rotating shaft 32 is rotatably installed inside the groove 202. A fixed gear plate 33 is fixedly installed on the surface of the rotating shaft 32. Threaded sleeves 52 are threadedly installed at both ends of the bidirectional lead screw 51. Movable rods 53 are rotatably connected to the top of the two threaded sleeves 52. Telescopic connecting rods 54 are rotatably connected to the top of the movable rods 53. Limiting blocks 55 are fixedly connected to the top of the telescopic connecting rods 54. A through groove 131 is opened on the top of the connecting seat 13. The through groove 131 is T-shaped. A limiting plate 23 is fixedly connected to the top of the sliding block 22. The shape of the limiting plate 23 matches the wide opening shape of the through groove 131.
[0029] In this embodiment, the adjusting rod 3 is connected and fixed to the rotating shaft 32, so that the rotation of the rotating shaft 32 can drive the adjustment rod 3 to adjust its angle. The fixed gear plate 33 can limit and fix the rotating shaft 32 by abutting and engaging with the limiting block 55. The throttle 5 controls the rotation of the bidirectional lead screw 51. At the same time, the two ends of the movable rod 53 are connected to the threaded sleeve 52 and the telescopic connecting rod 54 respectively. The movement of the threaded sleeve 52 drives the movable rod 53 to make a linkage movement, which can push the telescopic connecting rod 54 and the limiting block 55 upward, so that the adjusting rod 3 cannot rotate, ensuring the stability of the ladder 1 during use. The through groove 131 opened at the top of the connecting seat 13 allows the limiting plate 23 to pass through it. Pushing the sliding block 22 to move can drive the limiting plate 23 to move. The narrow end of the connecting seat 13 can limit the limiting plate 23, so that the ladder 1 can be fixed when stored in the storage slot 201, preventing the ladder 1 from loosening and unfolding during transportation.
[0030] Working principle: The ladder 1 can be folded and stored inside the storage slot 201 to reduce its footprint. The sliding block 22 passes through the through slot 131 and simultaneously positions the limiting plate 23 at the top of the narrow opening. The connecting seat 13 and the connecting frame 21 are connected to keep the ladder 1 fixed inside the storage slot 201. When the ladder 1 needs to be used, the sliding block 22 is pushed so that the top limiting plate 23 aligns with the wide opening of the through slot 131, and the ladder 1 is lifted upward to tilt it. Then, the adjusting rod 3 is removed from the groove 202, the support rod 4 is pulled out upward, and the fixing bolt 31 passes through the through hole 301 and the positioning hole 401. The fixing bolt 31 is fixed by using a nut to keep the support rod 4 in place. The adjusting rod 3 and the support rod 4 are lifted to support and position the extension plates 12 at both ends of the ladder 1, thus keeping the ladder 1 fixed. This allows for height adjustment of the ladder 1 to suit different height scenarios. When the top of the support rod 4 abuts against the limiting tooth groove 121, the double-acting screw 51 is rotated by turning the handle 5. The threaded sleeve 52 moves on its surface, causing the movable rod 53 to perform a linkage movement, which pushes the telescopic connecting rod 54 and the limiting block 55 upward. The limiting block 55 rises and engages with the fixed toothed plate 33 to fix the rotating shaft 32, thus preventing the adjusting rod 3 from rotating. This ensures the stability of the ladder 1 during use and prevents the support rod 4 from shaking during use, which could affect safety.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] 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 these 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 power engineering emergency repair ladder, characterized in that: The system includes a ladder (1) and a storage base (2). An installation shaft (11) is fixedly installed inside the ladder (1). Extension plates (12) are fixedly connected to both the front and rear ends of the ladder (1). A connecting seat (13) is fixedly installed on the top of the ladder (1). The top of the storage base (2) has a storage groove (201) and a recess (202). A cavity (203) is formed inside the storage base (2). A connecting frame (21) is fixedly connected to one side of the outer wall of the storage base (2). A sliding block (22) is slidably installed on the top of the connecting frame (21). An adjusting rod (3) is rotatably installed inside the groove (202). A through hole (301) is opened on the surface of the adjusting rod (3). A fixing bolt (31) is installed inside the through hole (301). A support rod (4) is slidably installed inside the adjusting rod (3). The top of the support rod (4) extends outward to the outer end of the adjusting rod (3). Two handles (5) are rotatably installed on one side of the storage base (2). A two-way screw (51) is fixedly connected to one side of the handle (5). The other end of the two-way screw (51) is rotatably connected to the inner wall of the cavity (203).
2. The power engineering emergency repair ladder according to claim 1, characterized in that: The mounting shaft (11) is rotatably mounted inside the storage slot (201), the bottom of the extension plate (12) is provided with a limiting tooth groove (121), and the top of the support rod (4) is angled.
3. The power engineering emergency repair ladder according to claim 1, characterized in that: The surface of the support rod (4) is provided with several positioning holes (401) at equal intervals, and the fixing bolt (31) is provided to pass through the through hole (301) and the positioning hole (401).
4. The power engineering emergency repair ladder according to claim 1, characterized in that: The bottom of the adjusting rod (3) is fixedly connected to a rotating shaft (32), which is rotatably installed inside the groove (202). A fixed gear plate (33) is fixedly installed on the surface of the rotating shaft (32).
5. The power engineering emergency repair ladder according to claim 1, characterized in that: Both ends of the bidirectional lead screw (51) are threaded with threaded sleeves (52), and the top of each of the two threaded sleeves (52) is rotatably connected with a movable rod (53). The top of the movable rod (53) is rotatably connected with a telescopic connecting rod (54), and the top of the telescopic connecting rod (54) is fixedly connected with a limit block (55).
6. The emergency repair ladder for power engineering according to claim 1, characterized in that: The top of the connector (13) is provided with a through groove (131), which is T-shaped.
7. The emergency repair ladder for power engineering according to claim 1, characterized in that: The top of the sliding block (22) is fixedly connected to a limiting plate (23), and the shape of the limiting plate (23) matches the wide opening shape of the through groove (131).