A maintenance device for high and low voltage power distribution equipment
The high and low voltage power distribution equipment maintenance device, which integrates trolley boards and storage rack components, solves the problem of carrying maintenance tools and ladders, enabling convenient movement and support at heights, and improving maintenance efficiency and safety.
Patent Information
- Application Number
- CN202521661129.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-06
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-08-06
AI Technical Summary
When maintaining traditional high and low voltage power distribution equipment, staff need to carry maintenance tools and ladders, which is inconvenient to carry, has low maintenance efficiency, and is not suitable for space-constrained scenarios.
Design a maintenance device for high and low voltage power distribution equipment, which combines a trolley and a storage rack assembly to integrate tool storage and a personnel stand assembly. It can be easily moved using casters, and the personnel stand assembly provides support for climbing, thus achieving an organic combination of tool management and climbing operations.
It improves maintenance efficiency and safety, is suitable for space-constrained scenarios, eliminates the need to carry an extra ladder, and integrates tool management and mobility functions.
Smart Images

Figure CN224947145U_ABST
Abstract
Description
Technical Field
[0001] This utility model provides a maintenance device for high and low voltage power distribution equipment, belonging to the field of power equipment maintenance technology. Background Technology
[0002] High and low voltage power distribution equipment, as the name suggests, are power distribution equipment used in power supply systems for power distribution, control, metering, and cable connection. Generally, power supply bureaus and substations use high-voltage switchgear, and then the voltage is stepped down by transformers to the low-voltage side, leading to low-voltage distribution cabinets. The low-voltage distribution cabinets then connect to various power distribution panels, control boxes, and switch boxes. These are power distribution devices that integrate switches, circuit breakers, fuses, buttons, indicator lights, meters, wires, and other protective devices to achieve the designed functional requirements.
[0003] High and low voltage power distribution equipment requires routine maintenance. Traditional maintenance methods for this equipment suffer from the following problems: when workers carry maintenance tools in suitcases, they often need to use ladders to access the relatively high positions of the equipment, which is inconvenient and reduces maintenance efficiency and safety, especially in space-constrained power distribution scenarios. Therefore, this invention provides a maintenance device for high and low voltage power distribution equipment. Utility Model Content
[0004] The technical problem solved by this utility model is that when staff use a suitcase to store and carry maintenance tools, they still need to take out a ladder, which is not conducive to carrying. Maintenance efficiency and safety need to be improved, and it is especially unsuitable for power distribution scenarios with limited space.
[0005] To solve the technical problem, the technical solution provided by this utility model is as follows: a maintenance device for high and low voltage power distribution equipment, including a trolley board, and a storage rack assembly for storing maintenance tools for high and low voltage power distribution equipment. The storage rack assembly includes hollow support rods fixedly installed at the four corners of the top of the trolley board. Each hollow support rod has several support blocks evenly spaced on its side wall. Several storage boxes supported between the hollow support rods are provided.
[0006] A standing assembly for supporting personnel to stand at a height for maintenance includes a support plate placed above hollow support rods, a lifting rod that is slidably inserted into the top of each hollow support rod and fixedly connected to the bottom of the support plate, and a guardrail provided at the top edge of the support plate.
[0007] Furthermore, the bottom sides of the trolley are symmetrically equipped with casters with brake pads.
[0008] Furthermore, the storage box has symmetrical mounting blocks at both ends of its two side walls, which are placed on top of the support block. The bottom of the mounting block has a locking rod that passes through the support block, and the support block has a locking hole that passes through the locking rod.
[0009] Furthermore, the lifting rod is symmetrically provided with limiting rails on both sides that match the inner wall of the hollow support rod.
[0010] Furthermore, the guardrail includes uprights symmetrically fixed at the four corners of the top of the support plate, and a C-shaped enclosure plate is provided between the tops of the uprights.
[0011] Furthermore, the hollow support rod is provided with a locking bolt for locking the lifting rod, the upper end of the hollow support rod is provided with a threaded hole that matches the locking bolt, and the lifting rod is provided with a number of adjustment holes that match the locking bolt.
[0012] The beneficial effects of this utility model are:
[0013] The device is moved by casters and organically combines a storage rack component for storing maintenance tools for high and low voltage power distribution equipment with a standing component for supporting personnel to perform maintenance at height. It organically integrates tool management, climbing operations and mobility functions, significantly improving maintenance efficiency and safety. There is no need to take the ladder while taking the maintenance tools, which is convenient to carry and is especially suitable for power distribution scenarios with limited space. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a maintenance device for high and low voltage power distribution equipment according to this utility model. Figure 1 .
[0015] Figure 2 This is a schematic diagram of the structure of a maintenance device for high and low voltage power distribution equipment according to this utility model. Figure 2 .
[0016] Figure 3 This is a schematic diagram of the structure of a maintenance device for high and low voltage power distribution equipment according to this utility model. Figure 3 .
[0017] Figure 4 This is a schematic diagram of the structure of a maintenance device for high and low voltage power distribution equipment according to this utility model. Figure 4 .
[0018] 1. Trolley board; 2. Storage rack assembly; 3. Hollow support rod; 4. Support block; 5. Storage box; 6. Standing assembly; 7. Support plate; 8. Lifting rod; 9. Guardrail; 10. Casters; 11. Mounting block; 12. Locking rod; 13. Limiting rail; 14. Upright; 15. C-shaped enclosure panel; 16. Locking bolt; 17. Adjustment hole. Detailed Implementation
[0019] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.
[0020] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.
[0021] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0022] According to the appendix Figure 1 , 3 As shown in Figure 4: This utility model provides a maintenance device for high and low voltage power distribution equipment: it includes a trolley board 1, with symmetrical casters 10 equipped with brake pads on both sides of the bottom of the trolley board 1 for easy movement. After being moved to a suitable position, the casters 10 can be locked by the brake pads to prevent slippage and thus prevent the device from moving. It also includes a storage rack assembly 2 for storing high and low voltage power distribution equipment maintenance tools. The storage rack assembly 2 includes hollow support rods 3 fixedly installed at the four corners of the top of the trolley board 1. Each hollow support rod 3 has several support blocks 4 evenly spaced on its side wall. Several storage boxes 5 are provided between the hollow support rods 3 and supported between the support blocks 4. The two side walls are symmetrically provided with mounting blocks 11 placed on top of the support block 4. The bottom of the mounting block 11 is provided with a locking rod 12 that passes through the support block 4. The support block 4 is provided with a locking hole that passes through the locking rod 12 to prevent the storage box 5 from falling between the hollow support rods 3 when the device moves. Specifically, the support block supports the storage box in layers, and the box is fixed to the mounting block by the locking rod, so as to realize the partitioned storage of tools. According to the height space occupied by the maintenance tools of high and low voltage power distribution equipment, the spacing between adjacent storage boxes 5 can be adjusted to facilitate the retrieval of tools. The storage box 5 can be used to store handheld vacuum cleaners, temperature and humidity detectors used to detect whether the power distribution equipment is operating within the allowable range, etc.
[0023] As per the instruction manual Figure 1 , 2As shown: The standing assembly 6 is used to support personnel for standing height maintenance. The standing assembly 6 includes a support plate 7 positioned above hollow support rods 3. Each hollow support rod 3 has a slidingly inserted lifting rod 8 fixedly connected to the bottom of the support plate 7. A guardrail 9 is provided at the top edge of the support plate 7. The lifting rods 8 have symmetrically arranged limiting rails 13 on both sides that match the inner walls of the hollow support rods 3, constraining the displacement path of the lifting rods 8 and preventing swaying. The guardrail 9 includes uprights 14 symmetrically fixed at the four corners of the top of the support plate 7. A C-shaped barrier 15 is provided between the tops of the uprights 14. The hollow support rods 3 are equipped with features for locking the lifting rods 8. The locking bolt 16 and the hollow support rod 3 have threaded holes at the upper end of the rod body that match the locking bolt 16. The lifting rod 8 has several adjustment holes 17 that match the locking bolt 16. Specifically, by matching the locking bolt 16 with different height adjustment holes 17, the extension length of the lifting rod 8 can be adjusted, thereby adjusting the support plate 7 to a suitable height. Workers can climb onto the support plate 7 to perform high-altitude operations. The support plate 7 is used for workers to stand on, enabling maintenance work on high and low voltage power distribution equipment at relatively high positions. The C-shaped enclosure forms a protective barrier to ensure personnel safety.
[0024] The principle of this utility model
[0025] When in use, the device is moved by casters. It organically combines the storage rack component 2, which is used to store maintenance tools for high and low voltage power distribution equipment, with the standing component 6, which is used to support personnel to perform maintenance at height. The support blocks support the storage box 5 in layers, realizing the partitioned storage of tools. Workers can stand on the support plate 7 to perform maintenance work on high and low voltage power distribution equipment at relatively high positions. It can organically integrate tool management, climbing operations and mobility functions, significantly improving maintenance efficiency and safety. There is no need to take the climbing ladder while taking the maintenance tools, which is convenient to carry and is especially suitable for power distribution scenarios with limited space.
[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A maintenance device for high and low voltage power distribution equipment, comprising a trolley (1), characterized in that: It also includes a storage rack assembly (2) for storing maintenance tools for high and low voltage power distribution equipment. The storage rack assembly (2) includes hollow support rods (3) fixedly installed at the four corners of the top of the trolley plate (1). Each hollow support rod (3) has several support blocks (4) evenly spaced on its side wall. Several storage boxes (5) supported between the hollow support rods (3) are provided between the support blocks (4). The standing assembly (6) is used to support personnel to stand for maintenance. The standing assembly (6) includes a support plate (7) placed above the hollow support rod (3). Each hollow support rod (3) has a lifting rod (8) that is slidably inserted into the top and fixedly connected to the bottom of the support plate (7). The top edge of the support plate (7) is provided with a guardrail (9).
2. The maintenance device for high and low voltage power distribution equipment according to claim 1, characterized in that: The trolley board (1) is symmetrically equipped with casters (10) with brake pads on both sides of its bottom.
3. A maintenance device for high and low voltage power distribution equipment according to claim 1, characterized in that: The storage box (5) has symmetrical mounting blocks (11) on both sides of the side walls, which are placed on top of the support block (4). The bottom of the mounting block (11) is provided with a locking rod (12) that passes through the support block (4). The support block (4) is provided with a locking hole that passes through the locking rod (12).
4. A maintenance device for high and low voltage power distribution equipment according to claim 1, characterized in that: The lifting rod (8) has symmetrical limit rails (13) on both sides that match the inner wall of the hollow support rod (3).
5. A maintenance device for high and low voltage power distribution equipment according to claim 1, characterized in that: The guardrail (9) includes uprights (14) symmetrically fixed at the four corners of the top of the support plate (7), and a C-shaped enclosure plate (15) is provided between the tops of the uprights (14).
6. A maintenance device for high and low voltage power distribution equipment according to claim 1, characterized in that: The hollow support rod (3) is provided with a locking bolt (16) for locking the lifting rod (8). The upper end of the hollow support rod (3) is provided with a threaded hole that matches the locking bolt (16). The lifting rod (8) is provided with a number of adjustment holes (17) that match the locking bolt (16).
