A pole-mounted circuit breaker

Abstract

The application relates to the technical field of circuit breakers, in particular to a pole-mounted circuit breaker which comprises a circuit breaker body, one end of the circuit breaker body is fixedly connected with an arc-shaped clamping plate, a guide cavity is formed in the arc-shaped clamping plate, two arc-shaped connecting plates are slidably connected in the guide cavity, a connecting cavity is formed in one end of the arc-shaped connecting plate, a pushing mechanism is arranged in the connecting cavity, and a plurality of limiting mechanisms are arranged on the outer side of the arc-shaped connecting plate. The setting of the compressed gas tank makes the circuit breaker body be hoisted to the mounting position of the telegraph pole, compressed gas enters the guide cavity by opening the valve, at this time, the two arc-shaped connecting plates quickly extend outward and are finally limited by the clamping mechanism, at this time, the pushing mechanism is in the active state, the pushing mechanism is pushed by the gas, the plurality of limiting mechanisms extend outward and contact the surface of the telegraph pole, and the circuit breaker body is limited on the surface of the telegraph pole by the plurality of rubber antiskid strips and the limiting mechanisms.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker technology, specifically to a pole-mounted circuit breaker. Background Technology

[0002] Pole-mounted circuit breakers are key protection and control devices in overhead power distribution lines. They are widely used in 10kV and 35kV voltage level distribution systems, undertaking the tasks of line switching, load conversion, and protection against faults such as short circuits and overloads. Their reliability is directly related to the safety and stability of the power supply area.

[0003] Existing pole-mounted circuit breakers typically lack pre-attachment or self-locking functions during installation. This means that before the bolts are fully inserted and tightened, the weight of the circuit breaker relies entirely on the hoisting ropes. If hoisting equipment malfunctions, ropes break, or the enclosure sways significantly due to wind during this period, the circuit breaker is highly susceptible to falling from a height, posing a danger to ground construction workers. To address this, we have developed a new pole-mounted circuit breaker. Summary of the Invention

[0004] The purpose of this invention is to provide a pole-mounted circuit breaker to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A pole-mounted circuit breaker includes a circuit breaker body, an arc-shaped clamp plate fixedly connected to one end of the circuit breaker body, a guide cavity formed inside the arc-shaped clamp plate, two arc-shaped connecting plates slidingly connected inside the guide cavity, a connecting cavity formed at one end of the arc-shaped connecting plate, a pushing mechanism provided inside the connecting cavity, and a plurality of limiting mechanisms provided on the outer side of the arc-shaped connecting plate, wherein the plurality of limiting mechanisms are pushed outward in sequence by the movement of the pushing mechanism; Both the upper and lower ends of the arc-shaped connecting plate are provided with snap-fit ​​holes, and snap-fit ​​mechanisms are snapped into the snap-fit ​​holes. The snap-fit ​​mechanisms are set inside the arc-shaped clamping plate. A compressed air tank is fixedly connected to the upper end of the arc-shaped clamping plate. The compressed air tank is connected to the guide cavity through a valve. Two mounting holes are provided at one end of the arc-shaped connecting plate. Fixing bolts are provided in the mounting holes. Several rubber anti-slip strips are fixedly connected to the outer side of the arc-shaped clamping plate. An exhaust hole connected to the connecting cavity is provided at the upper end of the arc-shaped connecting plate.

[0006] Preferably, the pushing mechanism includes a pushing block, one end of which is inclined and the other end is fixedly connected to two hanging rings. The pushing block is movably connected to the connecting cavity. A hook is inserted into the hanging ring and fixedly connected to the outside of the T-shaped connecting rod. The upper end of the T-shaped connecting rod extends into the snap-fit ​​hole. A first spring is sleeved on the outside of the T-shaped connecting rod. One end of the first spring is fixedly connected to the snap-fit ​​hole and the other end is fixedly connected to the T-shaped connecting rod.

[0007] Preferably, the limiting mechanism includes a T-shaped slider, one end of which is fixedly connected to an anti-slip rubber block. The T-shaped slider is movably connected within an arc-shaped connecting plate, and one end extends into the connecting cavity. Preferably, the T-shaped slider has insertion holes at both the upper and lower ends, and a T-shaped rod is inserted into the insertion holes. The upper end of the T-shaped rod slides into the sliding cavity, which is located inside the arc-shaped connecting plate. A second spring is fixedly connected inside the sliding cavity, and the other end of the second spring is fixedly connected to the T-shaped rod.

[0008] Preferably, the locking mechanism includes a locking rod, which is movably connected to the arc-shaped clamping plate. The lower end of the locking rod is inserted into the locking hole. A support spring is sleeved on the outside of the locking rod. One end of the support spring is fixedly connected to the locking rod, and the other end is fixedly connected to the arc-shaped clamping plate.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting up a compressed air tank, when the circuit breaker body is hoisted to the installation position on the utility pole, compressed gas is allowed to enter the guide cavity by opening the valve. At this time, the two arc-shaped connecting plates will quickly extend outward and be limited by the locking mechanism. At this time, the pushing mechanism is in an active state. The gas pushes the pushing mechanism, causing several limiting mechanisms to extend outward and contact the surface of the utility pole. Through several rubber anti-slip strips and the limiting mechanisms, the circuit breaker body is limited to the surface of the utility pole, preventing the circuit breaker body from falling before the fixing bolts are tightened. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the arc-shaped connecting plate of the present invention in its extended state; Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the arc-shaped clamping plate of the present invention; Figure 4 This is a three-dimensional structural diagram showing the connection relationship between the circuit breaker body and the arc-shaped clamping plate of the present invention; Figure 5 This is a three-dimensional structural diagram of the pushing block position of the present invention; Figure 6 This is a three-dimensional structural diagram illustrating the connection relationship between the push block and the T-shaped connecting rod of the present invention; Figure 7 This is a three-dimensional structural diagram illustrating the connection relationship between the hanging ring and the hook of the present invention.

[0011] In the diagram: 1. Circuit breaker body; 2. Arc-shaped clamp; 3. Arc-shaped connecting plate; 4. Fixing bolt; 5. T-shaped slider; 6. Snap-fit ​​rod; 7. Rubber anti-slip strip; 8. Valve; 9. Compressed air tank; 10. Snap-fit ​​hole; 11. Support spring; 12. Sliding cavity; 13. Insertion hole; 14. Push block; 15. Connecting cavity; 16. T-shaped connecting rod; 17. First spring; 18. Hook; 19. Hanging ring; 20. Mounting hole; 21. T-shaped insertion rod; 22. Second spring; 23. Guide cavity; 24. Exhaust hole. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] Please see Figure 1-7 The present invention provides a technical solution: Example 1: A pole-mounted circuit breaker includes a circuit breaker body 1. An arc-shaped clamping plate 2 is fixedly connected to one end of the circuit breaker body 1. A guide cavity 23 is opened in the arc-shaped clamping plate 2. Two arc-shaped connecting plates 3 are slidably connected in the guide cavity 23. Before installation, the arc-shaped connecting plates 3 can be fixed by external ropes or other fixing materials. When the circuit breaker body 1 is hoisted to the designated position, the ropes or other fixing materials can be removed. The valve 8 is opened to allow the compressed gas in the compressed gas tank 9 to quickly enter the guide cavity 23. At this time, the two arc-shaped connecting plates 3 located in the guide cavity 23 will be pushed outward. A connecting cavity 15 is opened in one end of the arc-shaped connecting plate 3. A pushing mechanism is provided in the connecting cavity 15. Several limiting mechanisms are provided on the outside of the arc-shaped connecting plate 3. The movement of the pushing mechanism causes the several limiting mechanisms to be pushed outward in sequence.

[0014] The arc-shaped connecting plate 3 has snap-fit ​​holes 10 at both its upper and lower ends. A snap-fit ​​mechanism is snapped into each snap-fit ​​hole 10, and the snap-fit ​​mechanism is located within the arc-shaped clamping plate 2. When the snap-fit ​​hole 10 moves to the position of the snap-fit ​​mechanism, one end of the snap-fit ​​mechanism snaps into the snap-fit ​​hole 10, thus limiting and fixing the arc-shaped connecting plate 3. A compressed air tank 9 is fixedly connected to the upper end of the arc-shaped clamping plate 2. The compressed air tank 9 is connected to the guide cavity 23 via a valve 8. Two mounting holes 20 are provided at one end of the arc-shaped connecting plate 3, and fixing bolts 4 are installed in each mounting hole 20. The outer side of the arc-shaped clamping plate 2 is fixed... The circuit breaker body 1 is temporarily limited to the outside of the utility pole by several extended limiting mechanisms and several rubber anti-slip strips 7. When the push block 14 pushes out all the T-shaped sliders 5, the push block 14 will move to the end of the connecting cavity 15, and the gas will be discharged through the exhaust hole 24. By passing the fixing bolt 4 through the mounting hole 20 and locking it, the two arc-shaped connecting plates 3 can be limited and fixed.

[0015] Example 2: Based on Embodiment 1, in order to enable several T-shaped sliders 5 to be pushed out and contact the surface of the utility pole, the pushing mechanism includes a pushing block 14. One end of the pushing block 14 is inclined, and the other end is fixedly connected to two hanging rings 19. The pushing block 14 is movably connected to the connecting cavity 15. A hook 18 is inserted into the hanging ring 19. The hook 18 is fixedly connected to the outside of the T-shaped connecting rod 16. The upper end of the T-shaped connecting rod 16 extends into the snap-fit ​​hole 10. A first spring 17 is sleeved on the outside of the T-shaped connecting rod 16. One end of the first spring 17 is fixedly connected to the snap-fit ​​hole 10, and the other end is fixedly connected to the T-shaped connecting rod 16. In the initial state, under the elastic force of the first spring 17, the T-shaped connecting rod 16 will move upward, and the hook 18 will be inserted into the hanging ring 19, so that the pushing block 14 is limited.

[0016] The limiting mechanism includes a T-shaped slider 5, one end of which is fixedly connected to an anti-slip rubber block. The T-shaped slider 5 is movably connected to the arc-shaped connecting plate 3, and one end extends into the connecting cavity 15. When the T-shaped slider 5 moves outward, the anti-slip rubber block at one end of the T-shaped slider 5 will contact the surface of the utility pole. The upper and lower ends of the T-shaped slider 5 are provided with insertion holes 13, and a T-shaped rod 21 is inserted into the insertion holes 13. The upper end of the T-shaped rod 21 slides into the sliding cavity 12, which is located in the arc-shaped connecting plate 3. A second spring 22 is fixedly connected in the sliding cavity 12, and the other end of the second spring 22 is fixedly connected to the T-shaped rod 21.

[0017] The locking mechanism includes a locking rod 6, which is movably connected to the arc-shaped clamping plate 2. The lower end of the locking rod 6 is inserted into the locking hole 10. A support spring 11 is sleeved on the outside of the locking rod 6. One end of the support spring 11 is fixedly connected to the locking rod 6, and the other end is fixedly connected to the arc-shaped clamping plate 2. When the locking hole 10 located at the upper end of the arc-shaped connecting plate 3 moves to the position of the locking rod 6, the lower end of the locking rod 6 is locked into the locking hole 10 under the elastic force of the support spring 11, thereby limiting the arc-shaped connecting plate 3.

[0018] Working principle: When in use, the circuit breaker body 1 is hoisted to the location where it needs to be installed on the utility pole. After moving it to the appropriate position, the circuit breaker body 1 is pushed so that the arc-shaped clamping plate 2 contacts the utility pole. The valve 8 is opened so that the compressed gas in the compressed gas tank 9 quickly enters the guide cavity 23. At this time, the two arc-shaped connecting plates 3 located in the guide cavity 23 will be pushed outward. When the snap-fit ​​hole 10 located at the upper end of the arc-shaped connecting plate 3 moves to the position of the snap-fit ​​rod 6, under the elastic force of the support spring 11, the lower end of the snap-fit ​​rod 6 snaps into the snap-fit ​​hole 10, so that the arc-shaped connecting plate 3 is limited. Since the arc-shaped connecting plate 3 is fixed and limited, and the lower end of the snap-fit ​​rod 6 is inserted into the snap-fit ​​hole 10, one end of the T-shaped connecting rod 16 extending into the snap-fit ​​hole 10 will be pressed down. The movement of the T-shaped connecting rod 16 will drive the hook 18 to move and disengage from the hanging ring 19. At this time, the push block 14 is in an active state. Gas enters the connecting cavity 15 and pushes the push block 14 to move. Since one end of the push block 14 is set in an inclined position, the T-shaped slider 5 in contact with the push block 14 will be pushed outward during the movement of the push block 14. When the insertion hole 13 at the upper end of the T-shaped slider 5 moves to the position of the T-shaped insertion rod 21, the T-shaped insertion rod 21 will be inserted into the insertion hole 13 under the elastic force of the second spring 22, so that the T-shaped slider 5 is limited. Through several protruding T-shaped sliders 5 and several rubber anti-slip strips 7, the circuit breaker body 1 is temporarily limited to the outside of the utility pole. After the pusher block 14 pushes out all the T-shaped sliders 5, the pusher block 14 will move to the end of the connecting cavity 15, and the gas will be discharged through the exhaust hole 24. By passing the fixing bolt 4 through the mounting hole 20 and locking it, the two arc-shaped connecting plates 3 can be limited and fixed.

[0019] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pole-mounted circuit breaker, characterized in that: The circuit breaker includes a circuit breaker body, one end of which is fixedly connected to an arc-shaped clamping plate. A guide cavity is formed inside the arc-shaped clamping plate, and two arc-shaped connecting plates slide within the guide cavity. One end of each arc-shaped connecting plate has a connecting cavity, which contains a pushing mechanism. Several limiting mechanisms are provided on the outer side of the arc-shaped connecting plates. The movement of the pushing mechanism causes the limiting mechanisms to be pushed outward in sequence. Both the upper and lower ends of the arc-shaped connecting plate are provided with snap-fit ​​holes, and snap-fit ​​mechanisms are snapped into the snap-fit ​​holes. The snap-fit ​​mechanisms are set inside the arc-shaped clamping plate. A compressed air tank is fixedly connected to the upper end of the arc-shaped clamping plate. The compressed air tank is connected to the guide cavity through a valve. Two mounting holes are provided at one end of the arc-shaped connecting plate. Fixing bolts are provided in the mounting holes. Several rubber anti-slip strips are fixedly connected to the outer side of the arc-shaped clamping plate. An exhaust hole connected to the connecting cavity is provided at the upper end of the arc-shaped connecting plate.

2. The pole-mounted circuit breaker according to claim 1, characterized in that: The pushing mechanism includes a pushing block, one end of which is inclined and the other end is fixedly connected to two hanging rings. The pushing block is movably connected to the connecting cavity. A hook is inserted into the hanging ring and fixedly connected to the outside of the T-shaped connecting rod. The upper end of the T-shaped connecting rod extends into the snap-fit ​​hole. A first spring is sleeved on the outside of the T-shaped connecting rod. One end of the first spring is fixedly connected to the snap-fit ​​hole and the other end is fixedly connected to the T-shaped connecting rod.

3. A pole-mounted circuit breaker according to claim 1, characterized in that: The limiting mechanism includes a T-shaped slider, one end of which is fixedly connected to an anti-slip rubber block. The T-shaped slider is movably connected to the arc-shaped connecting plate, and one end extends into the connecting cavity.

4. A pole-mounted circuit breaker according to claim 3, characterized in that: The T-shaped slider has insertion holes at both the upper and lower ends, and a T-shaped rod is inserted into the insertion holes. The upper end of the T-shaped rod slides into the sliding cavity, which is located inside the arc-shaped connecting plate. A second spring is fixedly connected inside the sliding cavity, and the other end of the second spring is fixedly connected to the T-shaped rod.

5. A pole-mounted circuit breaker according to claim 1, characterized in that: The locking mechanism includes a locking rod, which is movably connected to the arc-shaped clamping plate. The lower end of the locking rod is inserted into the locking hole. A support spring is sleeved on the outside of the locking rod. One end of the support spring is fixedly connected to the locking rod, and the other end is fixedly connected to the arc-shaped clamping plate.

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