A power plant operation and maintenance device
By introducing a climbing mechanism into the power plant's operation and maintenance equipment, and using a motor-driven screw and sliding shaft to automatically adjust the climbing ladder and extension ladder, the problem of frequent support point adjustments caused by inconsistent equipment heights has been solved, improving maintenance efficiency and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 王玉梅
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-26
Smart Images

Figure CN224413536U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power plant operation and maintenance technology, specifically a power plant operation and maintenance device. Background Technology
[0002] A power plant is an industrial facility that converts primary energy sources (such as fossil fuels, hydropower, wind power, and solar power) or renewable energy sources stored in nature into electrical energy, and is a core component of the modern power system. Its core function is to provide a stable and reliable power supply for industry, commerce, and residential life through energy conversion technology. Maintenance equipment is required for power plant equipment maintenance and troubleshooting to ensure the stable operation of the power generation equipment.
[0003] During the operation and maintenance of existing power plant equipment, due to the varying heights of the equipment, staff typically need to use ladders to climb and observe the equipment status more closely in order to conduct comprehensive inspections and maintenance. However, ladders are generally long and heavy, making the transportation process time-consuming and labor-intensive. Furthermore, they require stable support points during installation, which may require multiple adjustments in densely populated equipment areas to find suitable support. This makes it difficult to meet the usage requirements, hindering the rapid commencement of maintenance work and reducing maintenance efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a power plant operation and maintenance device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a power plant operation and maintenance device, comprising a frame, wherein four sets of casters are mounted on the bottom of the frame, and further comprising:
[0006] A climbing mechanism to facilitate workers' access for maintenance is installed on the top of the vehicle frame. The climbing mechanism includes a guide assembly, a climbing ladder, a support assembly, and an extension ladder. The guide assembly is located on the top of the vehicle frame, the climbing ladder is located outside the guide assembly, the support assembly is located outside the climbing ladder and there are two sets of them, and the extension ladder is located above the climbing ladder.
[0007] Preferably, the climbing mechanism further includes an adjustment component, a connecting component, a fixing component, and a hook. The adjustment component is disposed on the inner side of the frame, the connecting component is disposed on the inner side of the climbing ladder, the fixing component is disposed on the outer side of the climbing ladder and the extension ladder, and the hook is disposed on the outer top of the extension ladder.
[0008] Preferably, the adjustment assembly includes a motor fixed to the outside of the frame, the output end of the motor is provided with a first screw, and a threaded block is threadedly connected to the outside of the first screw.
[0009] Preferably, the guide assembly includes a sliding shaft fixed to the top of the threaded block, two sets of guide rails are fixedly connected to the top of the frame, the outer side of the sliding shaft is slidably connected to the inner wall of the two sets of guide rails, and the outer side of the sliding shaft is rotatably connected to the inner wall of the climbing ladder.
[0010] Preferably, the support assembly includes a connecting seat fixed to the outside of the frame, a support rod rotatably connected to the inside of the connecting seat, and the other end of the support rod rotatably connected to the outside of the climbing ladder.
[0011] Preferably, the connecting assembly includes a connecting shaft fixed to the inside of the climbing ladder, a connecting frame rotatably connected to the outside of the connecting shaft, and an extension ladder fixedly connected to the outside of the connecting frame.
[0012] Preferably, the fixing component includes a nut fixed inside the connecting frame, and a second screw is slidably connected to the inner wall of the climbing ladder and the connecting frame, with a wheel fixedly connected to one end of the second screw.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention uses a sliding shaft to move one end of a climbing ladder synchronously. As the position of the climbing ladder changes, its connection angle with the support rod also changes. Since the position of the other end of the support rod is fixed, the climbing ladder is pushed to rotate around the sliding shaft, causing the whole structure to tilt and one end to rise. If the height of the climbing ladder is insufficient, the extension ladder can be rotated and unfolded around the connecting shaft. By rotating the wheel, the second screw rotates into the inside of the nut, and the climbing ladder and the extension ladder form a fixed connection. This eliminates the need to adjust the support point during use, saves time and effort during movement, facilitates quick maintenance, and improves maintenance efficiency. Attached Figure Description
[0015] Figure 1 A schematic diagram of a preferred embodiment of a power plant operation and maintenance device provided by this utility model;
[0016] Figure 2 A schematic diagram of the side structure of the vehicle frame provided by this utility model;
[0017] Figure 3 A schematic diagram of the support component structure provided by this utility model;
[0018] Figure 4 A schematic diagram of the extended ladder unfolding structure provided by this utility model.
[0019] In the diagram: 1. Frame; 2. Casters; 3. Climbing mechanism; 31. Adjustment assembly; 311. Motor; 312. First screw; 313. Threaded block; 32. Guide assembly; 321. Sliding shaft; 322. Guide rail; 33. Climbing ladder; 34. Support assembly; 341. Connecting seat; 342. Support rod; 35. Connecting assembly; 351. Connecting shaft; 352. Connecting frame; 36. Extension ladder; 37. Fixing assembly; 371. Nut; 372. Second screw; 373. Rotary wheel; 38. Hook. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-4 As shown, a power plant operation and maintenance device includes a frame 1. The rear of the frame 1 can be reinforced with counterweights to improve stability during use. Four sets of casters 2 are installed at the bottom of the frame 1, enabling flexible movement and steering for quick access to maintenance positions. These casters also have a self-locking function, locking the wheels upon reaching the designated location to prevent slippage and ensure operational safety. The device also includes a climbing mechanism 3, located on top of the frame 1, facilitating access for maintenance personnel. The climbing mechanism 3 comprises a guide assembly 32, a climbing ladder 33, a support assembly 34, and an extension ladder 36. The guide assembly 32 is located on top of the frame 1, and the climbing ladder 33 is located outside the guide assembly 32, allowing personnel to climb to the designated location. Equipment maintenance is performed at heights. Support components 34 are located on the outside of the climbing ladder 33, and there are two sets of them. An extension ladder 36 is located above the climbing ladder 33. The extension ladder 36 is used to extend the maintenance passage and increase the reach when the climbing ladder 33 is not high enough. The climbing mechanism 3 also includes an adjustment component 31, a connecting component 35, a fixing component 37, and a hook 38. The adjustment component 31 is located on the inside of the frame 1 and provides power for the angle adjustment of the climbing ladder 33. The connecting component 35 is located on the inside of the climbing ladder 33. The fixing component 37 is located on the outside of the climbing ladder 33 and the extension ladder 36. The hook 38 is located on the top of the outside of the extension ladder 36. The hook 38 is used to temporarily hang maintenance tools, freeing up hands and improving operating efficiency.
[0022] The adjustment assembly 31 includes a motor 311 fixed to the outside of the frame 1, powered by a battery, and connected to a controller in the device via a signal. A first screw 312 is provided at the output end of the motor 311, and a threaded block 313 is threadedly connected to the outer side of the first screw 312. When the motor 311 starts, it drives the first screw 312 to rotate, causing the threaded block 313 to move back and forth along the axial direction of the first screw 312. The guide assembly 32 includes a sliding shaft 321 fixed to the top of the threaded block 313, connecting the threaded block 313... 13 and climbing ladder 33 transmit motion and serve as the rotation fulcrum of climbing ladder 33; two sets of guide rails 322 are fixedly connected to the top of the frame 1, the outer side of the sliding shaft 321 is slidably connected to the inner wall of the two sets of guide rails 322, and the outer side of the sliding shaft 321 is rotatably connected to the inner wall of climbing ladder 33. When the threaded block 313 drives the sliding shaft 321 to move, the sliding shaft 321 will slide along the inner wall of the guide rail 322. The guide rail 322 can restrict the movement path of the sliding shaft 321, so that the sliding shaft 321 can maintain a parallel movement trajectory; support component 34 The system includes a connecting seat 341 fixed to the outside of the frame 1, a support rod 342 rotatably connected to the inner side of the connecting seat 341, and the other end of the support rod 342 rotatably connected to the outer side of the climbing ladder 33; the connecting assembly 35 includes a connecting shaft 351 fixed to the inner side of the climbing ladder 33, a connecting frame 352 rotatably connected to the outer side of the connecting shaft 351, and an extension ladder 36 fixedly connected to the outer side of the connecting frame 352. When not in use, the extension ladder 36 can be rotated along the connecting shaft 351 via the connecting frame 352 and placed close to the top of the climbing ladder 33. To reduce the size of the device and improve its ease of use, the fixing component 37 includes a nut 371 fixed inside the connecting frame 352. The climbing ladder 33 and the inner wall of the connecting frame 352 are slidably connected to a second screw 372. One end of the second screw 372 is fixedly connected to a rotating wheel 373. When the extension ladder 36 needs to be fixed after it is unfolded, the second screw 372 is rotated into the inside of the nut 371 by rotating the rotating wheel 373. After tightening the rotating wheel 373, the climbing ladder 33 and the extension ladder 36 will be fixed and can then be put into use.
[0023] Working principle: During use, when repairing the equipment, workers can move the frame 1 carrying tools and a ladder. After reaching the designated location, the casters 2 are first locked. Then, the motor 311 is started by the controller, causing the first screw 312 to rotate. This drives the threaded block 313 to move parallel along its axis. The sliding shaft 321 moves along with the ladder 33, moving one end of the ladder synchronously. As the position of the ladder 33 changes, the connection angle between it and the support rod 342 also changes. Since the position of the other end of the support rod 342 is fixed, the ladder 33 is pushed to rotate around the sliding shaft 321, causing the whole structure to tilt and one end to rise. If the height of the ladder 33 is insufficient, the extension ladder 36 can be rotated and unfolded around the connecting shaft 351. Then, by rotating the wheel 373, the second screw 372 rotates into the inside of the nut 371, thus forming a fixed connection between the ladder 33 and the extension ladder 36, facilitating the maintenance work.
[0024] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0025] 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 plant operation and maintenance device, comprising a frame (1), wherein four sets of casters (2) are mounted on the bottom of the frame (1), characterized in that, Also includes: A climbing mechanism (3) for easy access for workers to perform maintenance is located on the top of the frame (1). The climbing mechanism (3) includes a guide assembly (32), a climbing ladder (33), a support assembly (34), and an extension ladder (36). The guide assembly (32) is located on the top of the frame (1). The climbing ladder (33) is located outside the guide assembly (32). The support assembly (34) is located outside the climbing ladder (33) and there are two sets of them. The extension ladder (36) is located above the climbing ladder (33).
2. The power plant operation and maintenance device according to claim 1, characterized in that: The climbing mechanism (3) further includes an adjustment component (31), a connecting component (35), a fixing component (37), and a hook (38). The adjustment component (31) is located on the inner side of the frame (1), the connecting component (35) is located on the inner side of the climbing ladder (33), the fixing component (37) is located on the outer side of the climbing ladder (33) and the extension ladder (36), and the hook (38) is located on the outer top of the extension ladder (36).
3. The power plant operation and maintenance device according to claim 2, characterized in that: The adjustment assembly (31) includes a motor (311) fixed to the outside of the frame (1), and the output end of the motor (311) is provided with a first screw (312), and the outside of the first screw (312) is threadedly connected with a threaded block (313).
4. The power plant operation and maintenance device according to claim 1, characterized in that: The guide assembly (32) includes a sliding shaft (321) fixed to the top of the threaded block (313). Two sets of guide rails (322) are fixedly connected to the top of the frame (1). The outer side of the sliding shaft (321) is slidably connected to the inner wall of the two sets of guide rails (322). The outer side of the sliding shaft (321) is rotatably connected to the inner wall of the climbing ladder (33).
5. The power plant operation and maintenance device according to claim 1, characterized in that: The support assembly (34) includes a connecting seat (341) fixed to the outside of the frame (1), a support rod (342) is rotatably connected to the inside of the connecting seat (341), and the other end of the support rod (342) is rotatably connected to the outside of the climbing ladder (33).
6. A power plant operation and maintenance device according to claim 2, characterized in that: The connecting assembly (35) includes a connecting shaft (351) fixed inside the climbing ladder (33), a connecting frame (352) rotatably connected to the outside of the connecting shaft (351), and an extension ladder (36) fixedly connected to the outside of the connecting frame (352).
7. A power plant operation and maintenance device according to claim 2, characterized in that: The fixing component (37) includes a nut (371) fixed inside the connecting frame (352), and a second screw (372) is slidably connected to the inner wall of the climbing ladder (33) and the connecting frame (352), and a wheel (373) is fixedly connected to one end of the second screw (372).