A pole-mounted circuit breaker that facilitates disassembly for servicing by a worker
By adopting a quick-fixing structure and docking hole design, the problem of difficult disassembly of traditional pole-mounted circuit breakers has been solved, enabling rapid installation and easy disassembly of the circuit breaker, thus improving the operational efficiency and safety of the staff.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN QIHUI ELECTRIC CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-10
AI Technical Summary
The complex installation structure of traditional pole-mounted circuit breakers makes disassembly and installation cumbersome, increasing the difficulty of operation and safety risks for workers.
The circuit breaker is quickly positioned and securely connected by a quick-fixing structure consisting of a first fixing block, a sliding plate, a second fixing block, fixing screws, a connecting rod, and a pin. Combined with the design of the mounting bracket and the connecting hole, this simplifies the disassembly and assembly process.
It improves installation efficiency and the stability and safety of equipment operation, simplifies the disassembly and installation process, and reduces operational difficulty and safety risks.
Smart Images

Figure CN224480906U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment technology, and in particular to a pole-mounted circuit breaker that is easy for workers to disassemble during maintenance. Background Technology
[0002] A pole-mounted circuit breaker is a high-voltage switching device installed on power line poles or towers. It is mainly used in the power distribution network of a power system. Its main function is to disconnect or close the circuit under normal or fault conditions, including automatically disconnecting the circuit under abnormal conditions such as short circuits and overloads to protect the safe operation of the power system and related equipment. Pole-mounted circuit breakers are generally suitable for voltage levels from 10kV to 35kV and are an indispensable and important piece of equipment in power distribution lines.
[0003] Since most pole-mounted circuit breakers are installed on utility poles or elevated structures, their working environment is relatively complex, which brings greater operational difficulties and safety risks to workers. Traditional fixed installation methods often require the use of many fasteners and complex connection structures, resulting in cumbersome and time-consuming disassembly and installation processes.
[0004] To address the existing problems, there is a need for a pole-mounted circuit breaker that is easy for staff to disassemble during maintenance. Utility Model Content
[0005] To overcome the disadvantages of complex installation structure and inconvenience in disassembly, this utility model provides a pole-mounted circuit breaker that is easy for workers to disassemble during maintenance.
[0006] The technical solution of this utility model is as follows: A pole-mounted circuit breaker that is easy for workers to disassemble during maintenance includes a mounting frame, a first fixing block, a sliding plate, a second fixing block, fixing screws, a circuit breaker, connecting rods, and pins. Multiple first fixing blocks are installed inside the mounting frame. Two sliding plates are slidably connected to the mounting frame, and each sliding plate has a second fixing block installed inside. Multiple adjustment holes are evenly spaced on the left side of the mounting frame. Two fixing screws are located on the left side of the mounting frame, and both screws pass through the adjustment holes and are threaded to the corresponding sliding plates. The circuit breaker is placed on the mounting frame. Connecting rods are symmetrically installed inside the circuit breaker, and each connecting rod has symmetrically arranged reinforcing holes. Multiple connecting holes are opened on the mounting frame, and the two connecting rods engage with the corresponding connecting holes. Pins are engaged in the multiple reinforcing holes, and the pins pass through the mounting frame.
[0007] Optionally, it also includes a connecting rope and a light panel, with the connecting rope installed inside the mounting bracket and the light panel mounted on the connecting rope.
[0008] Optionally, it also includes a placement frame and partitions, with the placement frame installed on the left side of the mounting frame and multiple partitions evenly spaced inside the placement frame.
[0009] Optionally, it also includes anti-slip pads, with each of the first and second fixing blocks having an anti-slip pad attached.
[0010] Optionally, it also includes a wireframe, with the wireframe symmetrically connected to the top and bottom of the mounting bracket.
[0011] Optionally, the inner side of each first fixing block and each second fixing block is arc-shaped.
[0012] Optionally, each mating hole is rounded.
[0013] Optionally, the placement frame has multiple evenly spaced circular holes.
[0014] The beneficial effects of this utility model are as follows: By setting up a quick-fixing structure consisting of a first fixing block, a sliding plate, a second fixing block, an adjusting hole, and fixing screws, the device can be stably installed on a utility pole or mounting column, which not only improves the overall installation efficiency but also enhances the stability and safety of the equipment during operation. At the same time, by using the docking rod to cooperate with the docking hole on the mounting bracket and combining the snap-fit method of the pin and the reinforcing hole, the circuit breaker can be quickly positioned and firmly connected, greatly simplifying the disassembly and assembly process. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a three-dimensional structural diagram of the sliding plate, the second fixing block, and the adjusting hole of this utility model.
[0017] Figure 3 This is an exploded view of the circuit breaker and mounting bracket of this utility model.
[0018] Figure 4 This is a three-dimensional structural diagram of the components such as the placement frame, partition, and anti-slip mat of this utility model.
[0019] Figure 5 This is a cross-sectional view of the mounting bracket of this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1: Mounting bracket, 2: First fixing block, 3: Sliding plate, 4: Second fixing block, 5: Adjustment hole, 6: Fixing screw, 7: Circuit breaker, 8: Connecting rod, 9: Reinforcing hole, 10: Connecting hole, 11: Pin, 12: Connecting rope, 13: Light panel, 14: Placement frame, 15: Partition, 16: Anti-slip pad, 17: Cable management frame. Detailed Implementation
[0021] The embodiments of this utility model will be described below with reference to the accompanying drawings.
[0022] Example: A pole-mounted circuit breaker that is easy for workers to disassemble during maintenance, such as... Figures 1-5 As shown, the device includes a mounting frame 1, a first fixing block 2, a sliding plate 3, a second fixing block 4, a fixing screw 6, a circuit breaker 7, a connecting rod 8, a pin 11, a connecting rope 12, a light panel 13, a placement frame 14, a partition 15, an anti-slip pad 16, and a cable management frame 17. Multiple first fixing blocks 2 are installed inside the mounting frame 1, contacting the surface of the mounting column to provide initial fixing support and enhance the overall stability of the device. Two sliding plates 3 are slidably connected to the mounting frame 1, and each sliding plate 3 has a second fixing block 4 installed inside, which cooperates with the first fixing blocks 2 to clamp the mounting column, further improving the device's fixing firmness. Each first fixing block... 2. The inner sides of each second fixing block 4 are arc-shaped to facilitate fitting with the mounting column. Multiple adjustment holes 5 are evenly spaced on the left side of the mounting frame 1. Two fixing screws 6 are located on the left side of the mounting frame 1, both of which pass through the adjustment holes 5 and are threadedly connected to the corresponding sliding plate 3. A circuit breaker 7, a core electrical device, is placed on the mounting frame 1 to automatically disconnect the circuit under normal or fault conditions, protecting the safe operation of the power system. Symmetrically mounted docking rods 8 are installed inside the circuit breaker 7, which mate with the docking holes 10 on the mounting frame 1 to achieve rapid positioning and installation of the circuit breaker 7. The two docking rods 8 are symmetrically positioned vertically. The mounting bracket 1 has multiple mating holes 10 and reinforcement holes 9. Two mating rods 8 engage with the corresponding mating holes 10. Each mating hole 10 has rounded corners to facilitate engagement. Pins 11 are inserted into the reinforcement holes 9 to further secure and lock the circuit breaker 7, ensuring it will not loosen during operation. All pins 11 penetrate the mounting bracket 1. A connecting rope 12 is installed inside the mounting bracket 1, and a light panel 13 is mounted on the connecting rope 12 to provide illumination, facilitating maintenance work at night or in low-light conditions. A placement frame 14 is installed on the left side of the mounting frame 1 for storing tools or accessories, improving maintenance efficiency. Multiple round holes are evenly spaced on the placement frame 14 to drain water from inside the frame during rainy weather. Multiple partitions 15 are evenly spaced inside the placement frame 14. Anti-slip pads 16 are connected to each first fixing block 2 and second fixing block 4, which fit against the inner side of the first fixing block 2 and second fixing block 4 to increase friction with the mounting column, prevent slippage, and improve the fixing effect. Cable management frames 17 are symmetrically connected at the top and bottom of the mounting frame 1 to organize and guide the cable or line routing, keep the site clean, and improve safety.
[0023] When installing circuit breaker 7, the operator first places the device in a suitable installation position and ensures that the six first fixing blocks 2 and their anti-slip pads 16 on the mounting bracket 1 are tightly fitted against the mounting post. Then, the two sliding plates 3 are slid into the mounting bracket 1 and adjusted to ensure that the second fixing blocks 4 and their anti-slip pads 16 are also fitted against the mounting post, thus achieving initial fixation of the device. Next, the two fixing screws 6 are passed through the corresponding adjustment holes 5 and tightened onto the sliding plates 3 to securely fix the entire device to the mounting post. After the device is fixed, the operator places circuit breaker 7 on the mounting bracket 1. During placement, the connecting rods 8 on the left and right sides of circuit breaker 7 are inserted into the corresponding four connecting holes 10 to ensure that circuit breaker 7 is firmly in place. Then, the four pins 11 are passed through the mounting bracket 1 and inserted into the reinforcing holes on the connecting rods 8. Inside 9, the circuit breaker 7 is further reinforced to ensure its safe and reliable operation. Once the circuit breaker 7 is installed, it can be put into use. If it needs to be repaired later, the staff can place the necessary tools in the placement frame 14 on the left side of the mounting frame 1 for easy access. At the same time, the light panel 13 can be pulled out through the connecting rope 12 and the lighting function can be turned on to provide a good working environment for maintenance work. When it is necessary to disassemble the circuit breaker 7, the staff only needs to pull out the four pins 11 from the reinforcement holes 9 of the connecting rod 8, release the lock, and push the circuit breaker 7 upward to remove it from the mounting frame 1, which can achieve quick disassembly and greatly improve the convenience of maintenance and replacement.
[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 pole-mounted circuit breaker that is easy for workers to disassemble during maintenance, characterized in that: The device includes a mounting bracket (1), a first fixing block (2), a sliding plate (3), a second fixing block (4), fixing screws (6), a circuit breaker (7), a connecting rod (8), and a pin (11). The mounting bracket (1) contains six first fixing blocks (2). Two sliding plates (3) are slidably connected to the rear side of the mounting bracket (1), and each sliding plate (3) has a second fixing block (4) fixedly connected inside. Multiple adjustment holes (5) are symmetrically and evenly spaced on the left side of the mounting bracket (1). Two fixing screws (6) are located on the left side of the mounting bracket (1). The fixed screws (6) all pass through the adjustment hole (5) and are threaded to the corresponding sliding plate (3). The circuit breaker (7) is placed on the front side of the mounting bracket (1). The circuit breaker (7) is symmetrically fixed with connecting rods (8) inside. The two connecting rods (8) are symmetrically provided with reinforcement holes (9) on the outside. The mounting bracket (1) is provided with four connecting holes (10). The two connecting rods (8) are engaged with the two connecting holes (10) at the corresponding positions. Each reinforcement hole (9) is secured with a pin (11). The four pins (11) all pass through the mounting bracket (1).
2. The pole-mounted circuit breaker according to claim 1, which is easy for workers to disassemble during maintenance, is characterized in that: It also includes a connecting rope (12) and a lamp plate (13). The connecting rope (12) is fixedly connected inside the mounting bracket (1), and the lamp plate (13) is installed at the lower end of the connecting rope (12).
3. A pole-mounted circuit breaker as described in claim 2, which is easy for workers to disassemble during maintenance, characterized in that: It also includes a placement frame (14) and partitions (15). The placement frame (14) is fixedly connected to the left side of the mounting frame (1), and three partitions (15) are fixedly connected at even intervals inside the placement frame (14).
4. A pole-mounted circuit breaker as described in claim 3, which is easy for workers to disassemble during maintenance, characterized in that: It also includes anti-slip pads (16), and each of the first fixing blocks (2) and the second fixing blocks (4) is fixedly connected with an anti-slip pad (16).
5. A pole-mounted circuit breaker as described in claim 4, which is easy for workers to disassemble during maintenance, characterized in that: It also includes a rational wire frame (17), and the rational wire frame (17) is installed symmetrically on the top and bottom of the mounting bracket (1).
6. A pole-mounted circuit breaker as described in claim 5, which is easy for workers to disassemble during maintenance, characterized in that: The inner side of each first fixing block (2) and each second fixing block (4) is arc-shaped.
7. A pole-mounted circuit breaker as described in claim 6, which is easy for workers to disassemble during maintenance, characterized in that: Each mating hole (10) has a rounded corner.
8. A pole-mounted circuit breaker as described in claim 7, which is easy for workers to disassemble during maintenance, characterized in that: The placement frame (14) has multiple round holes evenly spaced on it.