A deformable electrical power maintenance ladder structure
By designing a deformable power maintenance ladder structure, the angle and shape of the ladder can be adjusted using a combination of bolts and rods, solving the problem that existing power maintenance ladders cannot be adjusted, and improving the flexibility and safety of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN HUADONG ELECTRICAL GRP
- Filing Date
- 2025-06-29
- Publication Date
- 2026-05-29
AI Technical Summary
The existing power maintenance ladder structure cannot be adjusted in shape and angle according to actual needs, and its large size makes it inconvenient to store and carry.
The ladder adopts a deformable power maintenance structure. The angle and shape of the ladder can be adjusted by using a combination of bolts and plugs. The height and stability of the ladder can be adjusted by combining the design of U-shaped clamps and springs.
The shape and angle of the power maintenance ladder can be flexibly adjusted, making it convenient for use in different scenarios, improving the ease of carrying and storage, and enhancing safety.
Smart Images

Figure CN224300779U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power maintenance equipment technology, and in particular to a deformable power maintenance ladder structure. Background Technology
[0002] Power maintenance ladders are special climbing equipment designed for power system maintenance and high-altitude operations. They must meet core requirements such as insulation and electric shock protection, stability and safety, portability and flexibility, and are suitable for substations, transmission lines and power distribution equipment.
[0003] In existing technologies, conventional power maintenance ladders are usually a single, fixed ladder frame structure that is large in size and cannot be folded or adjusted. During use, the shape of the power maintenance ladder structure cannot be adjusted according to actual usage needs, and the overall maintenance ladder structure is large, making it inconvenient to store and carry. Utility Model Content
[0004] In view of this, the present invention provides a deformable power maintenance ladder structure. The main technical problem to be solved is that the existing power maintenance ladder structure is not convenient for angle adjustment and cannot be adjusted into a suitable shape according to actual usage needs.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a deformable power maintenance ladder structure, including a ladder base, a side ladder rod installed inside the ladder base, and an adjustable ladder installed on the outer wall of the side ladder rod. Two sets of the ladder base, side ladder rod, and adjustable ladder are arranged symmetrically. The two adjustable ladders are movably connected to each other. The adjustable ladder is rotatably connected to the inside of the side ladder rod. A bolt is threaded inside the side ladder rod. A fixing plate is movably connected to the outer wall of the bolt. A plug rod is fixedly connected to the outer wall of the fixing plate. The plug rod is slidably connected to the inside of the side ladder rod. Multiple limiting holes are opened inside the adjustable ladder, and the plug rod is slidably connected to the inside of the limiting holes.
[0006] By adopting the above technical solution, rotating bolt one causes it to slide outwards towards the side ladder rod, which in turn moves the fixing plate one and the insert rod one synchronously. This causes the insert rod one to slide and disengage from the interior of the limiting hole one, thereby allowing the rotation angle of the adjustable ladder to be adjusted. After adjustment, rotating bolt one inwards towards the side ladder rod causes the fixing plate one and the insert rod one to move synchronously, causing the insert rod one to slide and engage with the corresponding limiting hole one inside the adjustable ladder for limiting. This achieves the effect of angle adjustment of the adjustable ladder, which can assist in changing the shape of the power maintenance ladder and can be adjusted according to actual usage needs.
[0007] As a further description of the above technical solution: the two adjustable ladders are internally connected by movable plates, the movable plates are internally threaded with bolts, and the outer walls of the bolts are movably connected with fixed plates.
[0008] By adopting the above technical solution, the movable plate is movably connected inside the two adjustable ladders, connecting and combining the two adjustable ladders. The bolt two is threadedly connected inside the movable plate and also limited to sliding inside the movable plate. The movable plate is also limited to rotating inside the fixed plate two. Rotating the bolt two can cause the bolt two to move outward from the movable plate and drive the fixed plate two to move synchronously.
[0009] As a further description of the above technical solution: the outer wall of the fixed plate two is fixedly connected to the insertion rod two, the insertion rod two is slidably connected inside the movable plate, and one of the adjustable ladders has multiple limiting holes two inside, the insertion rod two is slidably connected inside the limiting holes two.
[0010] By adopting the above technical solution, the fixed plate 2 moves along with the bolt 2, while driving the insertion rod 2 to slide synchronously and causing the insertion rod 2 to slide out of the interior of the limiting hole 2. After rotating the angle of the adjusting ladder with the limiting hole 2, the bolt 2 is rotated to move it inward towards the movable plate, which drives the fixed plate 2 and the insertion rod 2 to move synchronously and causes the insertion rod 2 to slide into the interior of the corresponding limiting hole 2 for limiting. This achieves the angle adjustment between the two adjusting ladders, which facilitates the angle adjustment and deformation of the power maintenance ladder structure.
[0011] As a further description of the above technical solution: Adjusting rods are fixedly connected to both sides of the lower surface of the side ladder rod, the adjusting rods are slidably connected inside the ladder seat, and connecting plates are fixedly connected to both sides of the outer wall of the ladder seat.
[0012] By adopting the above technical solution, the sliding parts fixed on both sides of the lower surface are inside, which helps to achieve the effect of lifting and adjusting.
[0013] As a further description of the above technical solution: a U-shaped clamp tube is slidably connected inside the connecting plate, and the side of the U-shaped clamp tube away from the connecting plate is slidably connected inside the ladder base.
[0014] By adopting the above technical solution, one side of the U-shaped clamp slides within the connecting plate, while the other side slides within the ladder base.
[0015] As a further description of the above technical solution: the adjusting rod has an insertion hole inside, and the side of the U-shaped clamp tube away from the connecting plate is slidably connected to the inside of the insertion hole.
[0016] By adopting the above technical solution, the U-shaped tube slides inside the socket at one end to limit and fix the adjusting rod, which facilitates the side ladder rod to drive the adjusting rod to adjust the height.
[0017] As a further description of the above technical solution: a spring is sleeved on the outer wall of the U-shaped clamp tube, one end of the spring is fixedly connected to the inside of the connecting plate, and the other end of the spring is fixedly connected to the inside of the U-shaped clamp tube.
[0018] By adopting the above technical solution, the U-shaped clamp tube is pulled outward and slid out of the socket. After the U-shaped clamp tube is rotated, the angle is placed below the connecting plate, which facilitates the height adjustment of the side ladder rod. After the adjustment is completed, the U-shaped clamp tube is pulled outward and rotated so that the end of the U-shaped clamp tube away from the connecting plate can be inserted into the ladder base and the corresponding socket, thereby limiting and fixing the side ladder rod and the adjusting rod.
[0019] As a further description of the above technical solution: a base plate is fixedly connected to the lower surface of the ladder base, and three anti-slip sleeves are fixedly connected to the outer wall of the base plate. The three anti-slip sleeves are respectively disposed at both ends of the outer wall of the base plate and in the middle of the outer wall of the base plate.
[0020] By adopting the above technical solution, three anti-slip sleeves are fixedly connected to the outer wall of the base plate to increase the stability of the power maintenance ladder structure and prevent the power maintenance ladder structure from slipping and tipping over during use, which could endanger the personal safety of the operator.
[0021] By employing the above technical solution, the deformable power maintenance ladder structure of this utility model has at least the following beneficial effects:
[0022] 1. Compared with the prior art, this deformable power maintenance ladder structure, by rotating bolt one, causes bolt one to slide outwards towards the side ladder rod, driving fixed plate one and insert rod one to move synchronously. This causes insert rod one to slide and disengage from the interior of limiting hole one, thereby allowing the rotation angle of the adjustable ladder to be adjusted. After adjustment, bolt one is rotated inwards towards the side ladder rod, driving fixed plate one and insert rod one to move synchronously, causing insert rod one to slide and engage with the corresponding limiting hole one inside the adjustable ladder for limiting. This achieves the effect of angle adjustment of the adjustable ladder, thus assisting in changing the shape of the power maintenance ladder, which can be adjusted according to actual usage needs.
[0023] 2. Compared with the prior art, this deformable power maintenance ladder structure, by rotating bolt two, moves it outwards from the movable plate, causing fixed plate two and insert rod two to move synchronously. This causes insert rod two to slide outwards from the interior of limiting hole two. After rotating the adjustable ladder with limiting hole two, bolt two is rotated again, causing fixed plate two and insert rod two to slide inwards from the movable plate, causing insert rod two to slide into the interior of the corresponding limiting hole two. The adjustable angle and limiting fixation between the two adjustable ladders assist in the deformation adjustment effect of the power maintenance ladder structure, meeting the actual power maintenance needs. Attached Figure Description
[0024] Figure 1 This is an overall structural diagram of a deformable power maintenance ladder structure proposed in this utility model;
[0025] Figure 2 This is a structural diagram of an adjustable ladder structure for a deformable power maintenance ladder proposed in this utility model;
[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0027] Figure 4 This is a structural diagram of the adjusting rod of a deformable power maintenance ladder proposed in this utility model;
[0028] Figure 5 This utility model presents a diagram of the adjustable ladder splicing structure of a deformable power maintenance ladder.
[0029] Figure 6 for Figure 5 Enlarged view of point B in the middle;
[0030] Figure 7 An angle adjustment diagram of a deformable power maintenance ladder structure proposed in this utility model;
[0031] Figure 8 This is a diagram showing the folded storage state of a deformable power maintenance ladder structure proposed in this utility model.
[0032] Legend:
[0033] 1. Ladder base; 101. Connecting plate; 102. U-shaped clamp; 103. Spring; 104. Base plate; 105. Anti-slip sleeve; 2. Side ladder rod; 201. Bolt 1; 202. Fixing plate 1; 203. Insert rod 1; 204. Adjusting rod; 205. Insertion hole; 3. Adjustable ladder; 301. Limiting hole 1; 302. Movable plate; 303. Bolt 2; 304. Fixing plate 2; 305. Insert rod 2; 306. Limiting hole 2. Detailed Implementation
[0034] Reference Figure 1-8This utility model provides a deformable power maintenance ladder structure, including a ladder base 1, a side ladder rod 2 installed inside the ladder base 1, the side ladder rod 2 being positioned above the ladder base 1, and an adjustable ladder 3 installed on the outer wall of the side ladder rod 2. Two sets of ladder base 1, side ladder rod 2, and adjustable ladder 3 are arranged symmetrically, with the two sets of adjustable ladder 3 being movably connected. The adjustable ladder 3 is rotatably connected inside the side ladder rod 2, with one end of the adjustable ladder 3 limited to rotation inside the side ladder rod 2. Bolts are threadedly connected inside the side ladder rod 2. Bolt 201 is also limited to sliding inside the side ladder rod 2. The outer wall of bolt 201 is movably connected to a fixing plate 202. Bolt 201 is limited to rotating inside the fixing plate 202. The outer wall of fixing plate 202 is fixedly connected to a plug rod 203. Plug rod 203 is slidably connected inside the side ladder rod 2. The interior of the adjustable ladder 3 is provided with multiple limiting holes 301. Plug rod 203 is slidably connected inside the limiting holes 301. Plug rod 203 limits and fixes the side ladder rod 2 and the adjustable ladder 3.
[0035] The two adjustable ladders 3 are internally connected by a movable plate 302, which is limited to rotate within the two adjustable ladders 3. The movable plate 302 is internally threaded with a bolt 303, which is also limited to slide within the movable plate 302. The outer wall of the bolt 303 is movably connected to a fixed plate 304, which is limited to rotate within the fixed plate 304. The outer wall of the fixed plate 304 is fixedly connected to a rod 305, which is slidably connected within the movable plate 302. One of the adjustable ladders 3 has multiple limiting holes 306 inside, and the rod 305 is slidably connected within the limiting holes 306. The rod 305 limits and fixes the two adjustable ladders 3, and can achieve a locking effect after angle adjustment.
[0036] Adjusting rods 204 are fixedly connected to both sides of the lower surface of the side ladder rod 2. The adjusting rods 204 are slidably connected to the inside of the ladder base 1. Connecting plates 101 are fixedly connected to both sides of the outer wall of the ladder base 1. U-shaped clamping tubes 102 are slidably connected inside the connecting plates 101. The U-shaped clamping tubes 102 are limited and slidably connected inside the connecting plates 101. The side of the U-shaped clamping tubes 102 away from the connecting plates 101 is slidably connected to the inside of the ladder base 1. An insertion hole 205 is opened inside the adjusting rod 204. The side of the U-shaped clamping tubes 102 away from the connecting plates 101 is slidably connected to the inside of the insertion hole 205. The side of the U-shaped clamping tubes 102 away from the connecting plates 101 is clamped to the ladder base 1 and... Inside the socket 205, the ladder base 1 and the side ladder rod 2 are limited and fixed. A spring 103 is sleeved on the outer wall of the U-shaped clamp tube 102. One end of the spring 103 is fixedly connected to the inside of the connecting plate 101, and the other end of the spring 103 is fixedly connected to the inside of the U-shaped clamp tube 102. The spring 103 supports the U-shaped clamp tube 102. A base plate 104 is fixedly connected to the lower surface of the ladder base 1. Three anti-slip sleeves 105 are fixedly connected to the outer wall of the base plate 104. The three anti-slip sleeves 105 are respectively set at both ends of the outer wall of the base plate 104 and in the middle of the outer wall of the base plate 104. The anti-slip sleeves 105 play an anti-slip role to prevent the bottom of the power maintenance ladder from slipping and tipping over.
[0037] Working principle: During use, the shape of the power maintenance ladder can be adjusted according to actual needs, such as... Figure 1 or with Figure 7A similar configuration allows for adjustments to the shape of the power maintenance ladder to suit different power maintenance scenarios, facilitating power maintenance work. When adjustments to the shape and angle are needed, firstly, rotate the bolts 201 on both sides inside each side ladder rod 2 to move them outwards, causing the fixing plate 202 and the insert rod 203 to move synchronously. After the insert rod 203 slides out of the limiting hole 301, the angles of the two adjusting ladders 3 can be adjusted by rotating them. Simultaneously, rotating the bolt 303 will... The fixed plate 204 and the insert rod 205 move, causing the insert rod 205 to slide out of the limiting hole 206, thus facilitating the adjustment of the angle between the two adjustable ladders 3. This helps adjust the shape of the power maintenance ladder. After adjustment, rotating the bolt 201 moves the fixed plate 202 and the insert rod 203, causing the insert rod 203 to engage with the corresponding limiting hole 301 after adjustment, thus fixing the side ladder rod 2 and the adjustable ladder 3. Then, rotating the bolt 203 moves the fixed plate 204 and the insert rod 206. The movement of rod 2 305 causes it to slide and lock into the limiting hole 2 306, thus limiting and fixing the two adjusting ladders 3 and preventing the power maintenance ladder from moving after adjustment and deformation. If it is necessary to adjust the height of the power maintenance ladder, the U-shaped clamp tube 102 can be pulled outward to make the side of the U-shaped clamp tube 102 away from the connecting plate 101 slide out of the insertion hole 205. Then, the angle of the U-shaped clamp tube 102 can be rotated so that the side of the U-shaped clamp tube 102 away from the connecting plate 101 is rotated and placed on the connecting plate 101. Below, the side ladder rod 2 can be moved upwards, causing the adjusting rod 204 to move upwards, thus achieving the effect of height adjustment. After adjustment, the U-shaped clamp tube 102 is pulled again and rotated, causing the side of the U-shaped clamp tube 102 away from the connecting plate 101 to be inserted into the corresponding insertion hole 205. This allows the side ladder rod 2 and the adjusting rod 204 to be fixed to the ladder base 1, achieving the effect of height adjustment of the power maintenance ladder. When the power maintenance ladder needs to be folded and stored, the state of the power maintenance ladder can be adjusted to match the above-mentioned angle deformation method. Figure 8 Once the alignment is consistent, the folding, storage, and adjustment of the power maintenance ladder can be completed.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A deformable power maintenance ladder structure, comprising a ladder base (1), characterized in that: The interior of the ladder base (1) is equipped with a side ladder rod (2), and the outer wall of the side ladder rod (2) is equipped with an adjustable ladder (3). There are two sets of ladder base (1), side ladder rod (2) and adjustable ladder (3). The two sets of ladder base (1), side ladder rod (2) and adjustable ladder (3) are symmetrically arranged. The two adjustable ladders (3) are movably connected. The adjustable ladder (3) is rotatably connected to the interior of the side ladder rod (2). The interior of the side ladder rod (2) is threaded with a bolt (201). The outer wall of the bolt (201) is movably connected with a fixing plate (202). The outer wall of the fixing plate (202) is fixedly connected with a plug rod (203). The plug rod (203) is slidably connected to the interior of the side ladder rod (2). The interior of the adjustable ladder (3) is provided with multiple limiting holes (301). The plug rod (203) is slidably connected to the interior of the limiting holes (301).
2. The deformable power maintenance ladder structure according to claim 1, characterized in that: The two adjustable ladders (3) are internally connected to movable plates (302), the movable plates (302) are internally threaded with bolts (303), and the outer walls of bolts (303) are internally connected to fixed plates (304).
3. The deformable power maintenance ladder structure according to claim 2, characterized in that: The outer wall of the fixed plate 2 (304) is fixedly connected to the insertion rod 2 (305), and the insertion rod 2 (305) is slidably connected to the inside of the movable plate (302). One of the adjustable ladders (3) has multiple limiting holes 2 (306) inside, and the insertion rod 2 (305) is slidably connected to the inside of the limiting holes 2 (306).
4. The deformable power maintenance ladder structure according to claim 1, characterized in that: Adjusting rods (204) are fixedly connected to both sides of the lower surface of the side ladder rod (2). The adjusting rods (204) are slidably connected inside the ladder seat (1). Connecting plates (101) are fixedly connected to both sides of the outer wall of the ladder seat (1).
5. The deformable power maintenance ladder structure according to claim 4, characterized in that: The connecting plate (101) is slidably connected to a U-shaped clamp tube (102), and the side of the U-shaped clamp tube (102) away from the connecting plate (101) is slidably connected to the inside of the ladder base (1).
6. The deformable power maintenance ladder structure according to claim 5, characterized in that: The adjusting rod (204) has an insertion hole (205) inside, and the U-shaped clamp tube (102) is slidably connected to the inside of the insertion hole (205) on the side away from the connecting plate (101).
7. The deformable power maintenance ladder structure according to claim 6, characterized in that: A spring (103) is fitted on the outer wall of the U-shaped clamp tube (102). One end of the spring (103) is fixedly connected to the inside of the connecting plate (101), and the other end of the spring (103) is fixedly connected to the inside of the U-shaped clamp tube (102).
8. The deformable power maintenance ladder structure according to claim 1, characterized in that: The lower surface of the ladder base (1) is fixedly connected to a base plate (104), and the outer wall of the base plate (104) is fixedly connected to three anti-slip sleeves (105). The three anti-slip sleeves (105) are respectively located at both ends of the outer wall of the base plate (104) and in the middle of the outer wall of the base plate (104).