A pole-mounted circuit breaker that is easy to maintain

CN224288148UActive Publication Date: 2026-05-26SHENZHEN QIHUI ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN QIHUI ELECTRIC CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-26

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Abstract

This utility model relates to the field of pole-mounted circuit breaker technology, and more particularly to a pole-mounted circuit breaker that is easy to maintain. This utility model provides such an easy-to-maintain pole-mounted circuit breaker, comprising: a first mounting bracket as a mounting carrier for parts; a second mounting bracket located below the first mounting bracket; a fixing plate connected between the upper sides of the first and second mounting brackets; a first mounting seat connected to the upper side of the fixing plate; and a second mounting seat connected to the upper side of the fixing plate, with the first mounting seat located to the left of the second mounting seat. This utility model uses the first and second mounting brackets to fix the circuit breaker to a substation or transmission line support. By rotating the nut to separate the double-ended bolts, and adjusting the circuit breaker body, it can be easily disassembled for maintenance work.
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Description

Technical Field

[0001] This utility model relates to the field of pole-mounted circuit breaker technology, and in particular to a pole-mounted circuit breaker that is easy to maintain. Background Technology

[0002] Pole-mounted circuit breakers are key devices used in power systems to control and protect circuits. They are typically installed on utility poles and their core function is to automatically disconnect the circuit when a fault current is detected, thereby protecting the power grid and its components from damage.

[0003] The internal structure of traditional pole-mounted circuit breakers is relatively complex, with tight connections between components and various fixing methods (such as bolt fixing, snap-fit ​​connection, etc.). Although this design improves the stability of the equipment, it requires operating multiple components one by one during installation and disassembly, which is time-consuming and labor-intensive.

[0004] In conclusion, there is an urgent need for a pole-mounted circuit breaker that is easy to maintain in order to solve the above problems. Utility Model Content

[0005] In order to overcome the disadvantages of traditional pole-mounted circuit breakers, which have a relatively complex internal structure and are time-consuming and labor-intensive to install and disassemble, this utility model mainly provides a pole-mounted circuit breaker that is easy to maintain.

[0006] A pole-mounted circuit breaker for easy maintenance includes: a first mounting bracket as a mounting carrier for components; a second mounting bracket located below the first mounting bracket; a fixing plate connected between the upper sides of the first and second mounting brackets; a first mounting seat connected to the upper side of the fixing plate; a second mounting seat connected to the upper side of the fixing plate, with the first mounting seat located to the left of the second mounting seat; a first mounting block detachably mounted on the first mounting seat; a second mounting block detachably mounted on the second mounting seat; a circuit breaker body mounted on the first and second mounting blocks; a double-ended bolt slidably connected between the first mounting seat and the first mounting block, and symmetrically slidably connected between the second mounting seat and the second mounting block; a nut symmetrically threaded on the double-ended bolt; and a connecting plate symmetrically detachably mounted between the two double-ended bolts on the second mounting seat and the second mounting block.

[0007] More preferably, it also includes a fixing block, which is evenly spaced and connected to the upper side of the fixing plate, the fixing block being located between the first mounting base and the second mounting base; an automatic take-up reel connected to the upper side of the fixing block; and a connecting wire connected to the automatic take-up reel, the other end of the connecting wire being connected to the adjacent circuit breaker body.

[0008] More preferably, it also includes a protective sleeve, which is detachably mounted on the nut.

[0009] More preferably, it also includes a temperature sensor mounted on the second mounting base, the temperature sensor being electrically connected to the back-end.

[0010] More preferably, it also includes a voltage sensor mounted on the second mounting base, the voltage sensor being electrically connected to the back-end.

[0011] More preferably, the outer ring of the protective sleeve has rectangular anti-slip grooves evenly spaced.

[0012] More preferably, the second mounting bracket has an irregular shape, with the right side extending upwards and to the right to connect with the lower side of the fixing plate.

[0013] More preferably, both the first mounting base and the second mounting base have mounting holes evenly spaced apart.

[0014] The beneficial effects of this utility model are:

[0015] This utility model is fixed to the substation or transmission line support by the first mounting bracket and the second mounting bracket. The double-headed bolt is separated by rotating the nut, and the circuit breaker body can be removed after movement and adjustment to facilitate maintenance work on the circuit breaker body. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the first mounting block, the second mounting block, and the double-headed bolt of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the automatic winding reel, connecting wire, and protective sleeve of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the protective sleeve, temperature sensor, and voltage sensor of this utility model.

[0020] The components in the attached diagram are labeled as follows: 1_First mounting bracket, 2_Second mounting bracket, 3_Fixing plate, 4_First mounting base, 5_Second mounting base, 6_Circuit breaker body, 7_First mounting block, 8_Second mounting block, 9_Double-ended bolt, 10_Nut, 11_Connecting plate, 12_Fixing block, 13_Automatic winding reel, 14_Connecting wire, 15_Protective sleeve, 16_Temperature sensor, 17_Voltage sensor. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example: A pole-mounted circuit breaker that is easy to maintain, such as Figures 1-3 As shown, the device includes a first mounting bracket 1, a second mounting bracket 2, a fixing plate 3, a first mounting seat 4, a second mounting seat 5, a circuit breaker body 6, a first mounting block 7, a second mounting block 8, a double-ended bolt 9, a nut 10, and a connecting plate 11. The first mounting bracket 1 serves as the mounting carrier for the parts. The second mounting bracket 2 is located below the first mounting bracket 1. The second mounting bracket 2 has an irregular shape, with its right side extending upwards and to the right to connect with the lower side of the fixing plate 3, thus supporting the fixing plate 3. The fixing plate 3 is welded between the upper sides of the first mounting bracket 1 and the second mounting bracket 2. The first mounting seat 4 is welded to the upper side of the fixing plate 3, and the second mounting seat 5 is welded to the upper side of the fixing plate 3. The first mounting seat 4 is located to the left of the second mounting seat 5. The first mounting seat 4 and the second mounting seat 5 are evenly spaced... The circuit breaker body 6 is mounted on the first mounting base 4 and the second mounting base 5. The first mounting base 4 is detachably equipped with a first mounting block 7, and the second mounting base 5 is detachably equipped with a second mounting block 8. The circuit breaker body 6 is mounted on the first mounting block 7 and the second mounting block 8. The first mounting base 4 and the first mounting block 7 are slidably connected by double-ended bolts 9. The second mounting base 5 and the second mounting block 8 are symmetrically slidably connected by double-ended bolts 9. The double-ended bolts 9 are symmetrically threaded with nuts 10. The two double-ended bolts 9 on the second mounting base 5 and the second mounting block 8 are symmetrically detachably equipped with connecting plates 11. The circuit breaker body 6 is fixed to the substation or transmission line support by the first mounting bracket 1 and the second mounting bracket 2. The double-ended bolts 9 can be separated by rotating the nuts 10. After moving and adjusting, the circuit breaker body 6 can be removed for easy disassembly.

[0023] like Figure 3 As shown, it also includes a fixing block 12, an automatic winding reel 13, and a connecting line 14. The fixing blocks 12 are evenly spaced on the upper side of the fixing plate 3. The fixing blocks 12 are located between the first mounting base 4 and the second mounting base 5. The automatic winding reel 13 is connected to the upper side of the fixing block 12. The connecting line 14 is connected to the automatic winding reel 13. The other end of the connecting line 14 is connected to the adjacent circuit breaker body 6.

[0024] like Figure 4 As shown, it also includes a protective sleeve 15. The protective sleeve 15 is detachably provided on the nut. The outer ring of the protective sleeve 15 has rectangular anti-slip grooves evenly spaced for anti-slip purposes.

[0025] like Figure 4As shown, it also includes a temperature sensor 16, which is mounted on the second mounting base 5 and is electrically connected to the back-end.

[0026] like Figure 4 As shown, it also includes a voltage sensor 17, which is mounted on the second mounting base 5 and is electrically connected to the back-end.

[0027] When this device is needed, it can be fixed to the support of a substation or transmission line using the first mounting bracket 1 and the second mounting bracket 2 to ensure the normal operation of the circuit breaker. The voltage sensor 17 is used to monitor the current and voltage levels in the circuit to help identify abnormal conditions such as overload or undervoltage. The temperature sensor 16 is used to monitor temperature changes during equipment operation to prevent malfunctions caused by overheating. Once an abnormality in the voltage or temperature of the circuit breaker body 6 is detected, the voltage sensor 17 or temperature sensor 16 will transmit a signal to the backend system. After receiving the information, the backend system will remind the staff to handle the situation. Subsequently, the staff can hold the protective sleeve 15 at the corresponding position and turn... Move the nut to separate it from the double-ended bolt 9. Then, move the other end of the double-ended bolt 9 to adjust it to a suitable position, thereby facilitating the disassembly of the circuit breaker body 6. During maintenance, the connecting wire 14 will be pulled out from the automatic take-up reel 13 as the circuit breaker body 6 moves and remain in position. After maintenance, return the circuit breaker body 6 to its initial position and move the double-ended bolt 9 in the opposite direction so that the nut contacts the double-ended bolt 9. Then, tighten the double-ended bolt 9 by rotating the protective sleeve 15 in the opposite direction, thereby quickly completing the installation of the circuit breaker body 6. Finally, the connecting wire 14 will be automatically wound up by the automatic take-up reel 13 and restored to its original state.

[0028] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A pole-mounted circuit breaker that is easy to maintain. Its characteristics include: The first mounting bracket (1) serves as the mounting carrier for the parts; The second mounting bracket (2) is located below the first mounting bracket (1); A fixing plate (3) is connected between the upper side of the first mounting bracket (1) and the second mounting bracket (2); The first mounting base (4) is connected to the upper side of the fixing plate (3); The second mounting base (5) is connected to the upper side of the fixing plate (3), and the first mounting base (4) is located to the left of the second mounting base (5); The first mounting block (7) is detachably mounted on the first mounting base (4); The second mounting block (8) is detachably mounted on the second mounting base (5); The circuit breaker body (6) is mounted on the first mounting block (7) and the second mounting block (8); the double-headed bolt (9) is slidably connected between the first mounting seat (4) and the first mounting block (7), and symmetrically slidably connected between the second mounting seat (5) and the second mounting block (8). The double-headed bolt (9) is used to fix the circuit breaker body (6). A nut (10) is provided on the double-ended bolt (9) with symmetrical threads on both sides. The nut (10) is used to fix and tighten the double-ended bolt (9). The connecting plate (11) is symmetrically and detachably disposed between the two double-headed bolts (9) on the second mounting base (5) and the second mounting block (8).

2. A pole-mounted circuit breaker for easy maintenance as described in claim 1, characterized in that, It also includes: a fixing block (12), which is evenly spaced on the upper side of the fixing plate (3), and the fixing block (12) is located between the first mounting base (4) and the second mounting base (5); An automatic take-up reel (13) is connected to the upper side of the fixed block (12); A connecting line (14) is connected to the automatic take-up reel (13), and the other end of the connecting line (14) is connected to the adjacent circuit breaker body (6).

3. A pole-mounted circuit breaker for easy maintenance according to claim 2, characterized in that: It also includes a protective sleeve (15), which is detachably mounted on the nut.

4. A pole-mounted circuit breaker for easy maintenance according to claim 3, characterized in that, It also includes a temperature sensor (16) mounted on the second mounting base (5), and the temperature sensor (16) is electrically connected to the back-end.

5. A pole-mounted circuit breaker for easy maintenance according to claim 4, characterized in that: It also includes a voltage sensor (17) mounted on the second mounting base (5), the voltage sensor (17) being electrically connected to the back-end.

6. A pole-mounted circuit breaker for easy maintenance according to claim 5, characterized in that: The outer ring of the protective sleeve (15) has rectangular anti-slip grooves evenly spaced.

7. A pole-mounted circuit breaker for easy maintenance according to claim 6, characterized in that: The second mounting bracket (2) has an irregular shape, with the right side extending upwards and to the right to connect with the lower side of the fixing plate (3).

8. A pole-mounted circuit breaker for easy maintenance according to claim 7, characterized in that: Both the first mounting base (4) and the second mounting base (5) have mounting holes evenly spaced apart.