Maintenance ladder for maintenance of substation operation equipment
By designing a combination of rotating, fixing, and protective components, the instability and inflexible storage issues of the maintenance ladder during use were resolved, achieving rapid deployment, stability, and effective protection.
Patent Information
- Application Number
- CN202520199599.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-08
AI Technical Summary
Existing maintenance ladders are not flexible in terms of storage during use, and are unstable in high-altitude or uneven environments, posing safety hazards. Furthermore, they are not effectively protected after being stored.
A maintenance ladder for substation equipment has been designed, comprising a rotating component, a fixing component, and a protective component. The ladder can be quickly deployed and stabilized through the cooperation of a rotating rod, a threaded rod, a slider, and a reinforcing plate, and is protected by a protective sleeve when stored.
It enables the ladder to be quickly deployed and stabilized during use, reducing safety risks during use, and provides effective protection after storage to avoid damage and safety hazards.
Smart Images

Figure CN223781390U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of maintenance ladder technology, and more specifically, it relates to a maintenance ladder for the maintenance of substation operating equipment. Background Technology
[0002] In the existing technology, although the existing maintenance ladder can complete basic maintenance work during use, the process of storing the ladder is not flexible once the work is completed. This means that after the maintenance work is finished, the staff needs to spend a lot of time and effort to organize the ladder and put it in the appropriate location.
[0003] The problem of bottom fixation in existing maintenance ladders is often not effectively solved during use. Although the ladder itself may be designed with support feet or anti-slip devices, these devices may still not be able to fully fix the ladder under certain special circumstances, causing it to wobble or slide during use. This problem is more obvious in high-altitude operations or uneven environments such as slopes. If the ladder is unstable when workers are working on it, it will directly increase the risk of falling or accidents.
[0004] In existing designs, many maintenance ladders do not have effective protection measures for the bottom after they are stored. When the maintenance ladder is stored, the bottom is not properly protected or covered, which may cause the bottom part to be exposed, creating safety hazards. For example, if the bottom is not effectively protected, it may be damaged by external collisions or friction, and may even pose a danger to the surrounding environment or people. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] In view of the problems existing in the prior art, this utility model provides a maintenance ladder for substation operation equipment, so as to solve the technical problem mentioned in the background art that although the existing maintenance ladder can complete basic maintenance work during use, the ladder is not flexible in its storage process after the work is completed.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a maintenance ladder for substation operating equipment, comprising a main ladder, a rotating assembly on the main ladder, the rotating assembly comprising a first rotating rod, a second rotating rod, an auxiliary ladder, a fixed sleeve, and a rotating sleeve, the first rotating rod being rotatably connected to the main ladder, the second rotating rod being rotatably connected to the first rotating rod, the auxiliary ladder being rotatably connected to the second rotating rod, the fixed sleeve being fixedly installed on the main ladder, the rotating sleeve being installed on the auxiliary ladder, the fixed sleeve and the rotating sleeve being rotatably connected, a fixed assembly on the auxiliary ladder, the fixed assembly comprising a base, a bidirectional threaded rod, and a rotating handle, the base being fixedly installed on the auxiliary ladder, the bidirectional threaded rod being rotatably connected to the base, the bidirectional threaded rod passing through the base and the auxiliary ladder, and the rotating handle being connected to one end of the bidirectional threaded rod.
[0009] The present invention is further provided that the main ladder and the auxiliary ladder are evenly equipped with pedals, so as to facilitate the use of the maintenance ladder by using the pedals.
[0010] The present invention is further configured such that a movable block is threadedly connected to the bidirectional threaded rod, and two movable blocks are provided. A slider is installed on the movable block, and the movement of the movable block is completed through the cooperation of the various components.
[0011] The present invention is further configured such that a sliding groove is provided on the base, the sliding groove is slidably connected to the slider, and a hinge rod is rotatably connected on the moving block. There are two hinge rods, and the rotation process of the hinge rod is completed by the cooperation of each component.
[0012] The present invention is further provided that a reinforcing plate is installed on the hinge rod, thereby completing the fixing process of the maintenance ladder by using the reinforcing plate.
[0013] The present invention is further configured such that a cone is installed on the reinforcing plate, thereby facilitating the fixing process of the reinforcing plate.
[0014] The present invention is further configured such that a protective component is provided on the main ladder, the protective component including a rotating seat, a protective sleeve and a storage slot, the rotating seat is installed on the main ladder, the protective sleeve is rotatably connected to the rotating seat, the storage slot is opened on the protective sleeve, and the auxiliary ladder is placed in the storage slot. The rotation process of the protective sleeve is completed through the cooperative use of each component.
[0015] The present invention is further configured such that the rotating sleeve is provided with a rotating groove, the rotating sleeve is rotatably connected in the rotating groove, and the base is provided with a slot, so that the protective sleeve can be completed through the cooperation of the various components.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a maintenance ladder for substation operating equipment, which has the following advantages:
[0018] 1. The rotating assembly allows the main ladder and auxiliary ladder to rotate relative to each other and to be easily unfolded and stored. Through the cooperation of the first and second rotating rods, the auxiliary ladder can rotate and unfold freely on the main ladder, thereby quickly adapting to different work needs. After unfolding, the bottom of the auxiliary ladder and the main ladder are in contact with the ground, providing stable support and enabling users to safely perform equipment maintenance.
[0019] 2. The fixing assembly effectively fixes the ladder in the right position through the interaction of the bidirectional threaded rod, the moving block, the slider and the hinge rod. When the auxiliary ladder is unfolded and connected to the main ladder, the user turns the handle to drive the bidirectional threaded rod, so that the moving block moves along the threaded rod, thereby driving the hinge rod and the reinforcing plate to rotate, so that the cone on the reinforcing plate penetrates into the ground and completes the fixation.
[0020] 3. The protective components are designed to ensure effective storage and protection of the ladder after use. Using a swivel base and protective sleeve, the auxiliary ladder can be stored inside the main ladder during storage, and the storage slots on the protective sleeve securely hold the auxiliary ladder, preventing it from being exposed or damaged by collisions. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of a maintenance ladder for substation operation equipment according to the present invention;
[0022] Figure 2 This is a schematic diagram of the protective component in this utility model;
[0023] Figure 3 This is a schematic diagram of the fixing component in this utility model;
[0024] Figure 4 This is a partial structural diagram of the fixing component in this utility model;
[0025] Figure 5 This is a schematic diagram of the rotating component in this utility model.
[0026] In the diagram: 1. Main ladder; 2. First rotating rod; 3. Second rotating rod; 4. Auxiliary ladder; 5. Fixed sleeve; 6. Rotating sleeve; 7. Base; 8. Two-way threaded rod; 9. Rotating handle; 10. Pedal; 11. Moving block; 12. Sliding block; 13. Sliding groove; 14. Hinge rod; 15. Reinforcing plate; 16. Cone; 17. Rotating seat; 18. Protective sleeve; 19. Storage groove; 20. Rotating groove; 21. Slot. Detailed Implementation
[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0030] Please see Figures 1-5 A maintenance ladder for substation operating equipment includes a main ladder 1. A rotating assembly is provided on the main ladder 1. The rotating assembly includes a first rotating rod 2, a second rotating rod 3, an auxiliary ladder 4, a fixed sleeve 5, and a rotating sleeve 6. The first rotating rod 2 is rotatably connected to the main ladder 1, the second rotating rod 3 is rotatably connected to the first rotating rod 2, the auxiliary ladder 4 is rotatably connected to the second rotating rod 3, the fixed sleeve 5 is fixedly installed on the main ladder 1, the rotating sleeve 6 is installed on the auxiliary ladder 4, and the fixed sleeve 5 and the rotating sleeve 6 are rotatably connected. A fixing assembly is provided on the auxiliary ladder 4. The fixing assembly includes a base 7, a bidirectional threaded rod 8, and a rotating handle 9. The base 7 is fixedly installed on the auxiliary ladder 4, the bidirectional threaded rod 8 is rotatably connected to the base 7, the bidirectional threaded rod 8 passes through the base 7 and the auxiliary ladder 4, and the rotating handle 9 is connected to one end of the bidirectional threaded rod 8.
[0031] Steps 10 are evenly installed on the main ladder 1 and the auxiliary ladder 4.
[0032] The threaded rod 8 is provided with a movable block 11, and there are two movable blocks 11. A slider 12 is installed on the movable block 11.
[0033] The base 7 has a sliding groove 13, which is slidably connected to the slider 12. The moving block 11 is rotatably connected to a hinge rod 14, and there are two hinge rods 14.
[0034] A reinforcing plate 15 is installed on the hinge rod 14.
[0035] A cone 16 is installed on the reinforcing plate 15.
[0036] In this embodiment, during use, after the ladder is moved to a suitable position, the auxiliary ladder 4 is rotated along the main ladder 1. During this rotation, the rotating sleeve 6 on the auxiliary ladder 4 rotates along the rotating groove 20 on the fixed sleeve 5 on the main ladder 1. During this rotation, the second rotating rod 3 and the first rotating rod 2 on the auxiliary ladder 4 cooperate to facilitate its unfolding, allowing it to be placed in a suitable position. The user can then use the steps 10 on the main ladder 1 and the auxiliary ladder 4 to perform the stepping process, facilitating equipment maintenance. After being fully unfolded, the main ladder 1 and the auxiliary ladder 4... The bottom of both parts are in contact with the ground. At this time, the rotating handle 9 drives the bidirectional threaded rod 8 to rotate. During the rotation, the moving block 11 on it moves along the bidirectional threaded rod 8. During the movement, the slider 12 on it slides along the sliding groove 13 on the base 7. During the movement, the hinge rod 14 rotatably connected to the moving block 11 rotates continuously. During the rotation, the reinforcing plate 15 connected to the bottom moves in height and the cone 16 on the reinforcing plate 15 is deeply inserted into the ground, thus completing the fixing process.
[0037] Please see Figure 2 As an implementation method of a maintenance ladder for substation operating equipment with protective components: the main ladder 1 is provided with protective components, which include a rotating seat 17, a protective sleeve 18 and a storage slot 19. The rotating seat 17 is installed on the main ladder 1, the protective sleeve 18 is rotatably connected to the rotating seat 17, the storage slot 19 is opened on the protective sleeve 18, and the auxiliary ladder 4 is placed in the storage slot 19.
[0038] The rotating sleeve 6 has a rotating groove 20, and the rotating sleeve 6 is rotatably connected in the rotating groove 20. The base 7 has a groove 21.
[0039] More specifically, during use, after the ladder is used and needs to be stored, the main ladder 1 is rotated along the auxiliary ladder 4. During this rotation, the above steps are repeated in reverse, so that the first rotating rod 2 and the second rotating rod 3 are stored, and the rotating sleeve 6 is rotated along the fixed sleeve 5, so that one end of the rotating sleeve 6 and the fixed sleeve 5 are attached together. After the main ladder 1 and the auxiliary ladder 4 are attached together, the protective sleeve 18 is rotated along the main ladder 1, so that the storage groove 19 on the protective sleeve 18 is placed together with the auxiliary ladder 4, thus completing the storage and protection process.
[0040] In summary, during the use or operation of the overall equipment: After moving the ladder to a suitable position, the auxiliary ladder 4 rotates along the main ladder 1. During this rotation, the rotating sleeve 6 on the auxiliary ladder 4 rotates along the rotating groove 20 on the fixed sleeve 5 on the main ladder 1. During this rotation, the second rotating rod 3 and the first rotating rod 2 on the auxiliary ladder 4 cooperate to easily unfold the equipment, allowing it to be placed in a suitable position. The user can then use the steps 10 on the main ladder 1 and the auxiliary ladder 4 to perform the stepping process, facilitating equipment maintenance. After fully unfolding, the main ladder 1... Both the bottom of the auxiliary ladder 4 and the bottom of the auxiliary ladder are in contact with the ground. At this time, the rotating handle 9 drives the bidirectional threaded rod 8 to rotate. During the rotation, the moving block 11 on it moves along the bidirectional threaded rod 8. During the movement, the slider 12 on it slides along the sliding groove 13 on the base 7. During the movement, the hinge rod 14 connected to the moving block 11 rotates continuously. During the rotation, the reinforcing plate 15 connected to the bottom moves in height and the cone 16 on the reinforcing plate 15 is deeply inserted into the ground, thus completing the fixing process.
[0041] When the ladder needs to be stored after use, the main ladder 1 is rotated along the auxiliary ladder 4. During this rotation, the above steps are repeated in reverse. This process allows the first rotating rod 2 and the second rotating rod 3 to be stored. The rotating sleeve 6 is then rotated along the fixed sleeve 5, causing one end of the rotating sleeve 6 and the fixed sleeve 5 to fit together. After the main ladder 1 and the auxiliary ladder 4 are fitted together, the protective sleeve 18 is rotated along the main ladder 1, causing the storage slot 19 on the protective sleeve 18 to be placed together with the auxiliary ladder 4, thus completing the storage and protection process.
[0042] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A maintenance ladder for substation equipment maintenance, comprising a main ladder (1), characterized in that: The main ladder (1) is provided with a rotating assembly, the rotating assembly comprises a first rotating rod (2), a second rotating rod (3), an auxiliary ladder (4), a fixed sleeve (5) and a rotating sleeve (6), the first rotating rod (2) is rotatably connected to the main ladder (1), the second rotating rod (3) is rotatably connected to the first rotating rod (2), the auxiliary ladder (4) is rotatably connected to the second rotating rod (3), the fixed sleeve (5) is fixedly installed on the main ladder (1), the rotating sleeve (6) is installed on the auxiliary ladder (4), the fixed sleeve (5) and the rotating sleeve (6) are rotatably connected, the auxiliary ladder (4) is provided with a fixing assembly, the fixing assembly comprises a base (7), a bidirectional threaded rod (8) and a rotating handle (9), the base (7) is fixedly installed on the auxiliary ladder (4), the bidirectional threaded rod (8) is rotatably connected to the base (7), the bidirectional threaded rod (8) penetrates through the base (7) and the auxiliary ladder (4), and the rotating handle (9) is connected to one end of the bidirectional threaded rod (8).
2. A maintenance platform for use in the maintenance of electrical equipment, according to claim 1, characterised in that: The main ladder (1) and the auxiliary ladder (4) are uniformly provided with a pedal (10).
3. A maintenance platform for use in the maintenance of electrical equipment, according to claim 2, characterised in that: A moving block (11) is threadedly connected to the bidirectional threaded rod (8), the moving block (11) is provided with two, and a sliding block (12) is installed on the moving block (11).
4. A maintenance platform for use in the maintenance of electrical equipment, according to claim 3, characterised in that: A sliding groove (13) is formed in the base (7) and is in sliding connection with the sliding block (12), and a hinged rod (14) is rotatably connected to the moving block (11).
5. A maintenance platform for use in the maintenance of electrical equipment, according to claim 4, characterised in that: A reinforcing plate (15) is installed on the hinged rod (14).
6. A maintenance ladder for use in the maintenance of electrical equipment according to claim 5, characterised in that: A vertebral body (16) is installed on the reinforcing plate (15).
7. A maintenance platform for use in the maintenance of electrical equipment, according to claim 6, characterised in that: The main ladder (1) is provided with a protection assembly, the protection assembly comprises a rotating seat (17), a protection sleeve (18) and a storage groove (19), the rotating seat (17) is installed on the main ladder (1), the protection sleeve (18) is rotatably connected to the rotating seat (17), the storage groove (19) is formed in the protection sleeve (18), and the auxiliary ladder (4) is placed in the storage groove (19).
8. A maintenance ladder for use in the maintenance of electrical equipment according to claim 7, characterised in that: A rotating groove (20) is formed in the rotating sleeve (6), and the rotating sleeve (6) is rotatably connected in the rotating groove (20). A slot (21) is formed in the base (7).