A smart pole-mounted circuit breaker
The plug-in fixing component solves the safety problem caused by stripped bolts in intelligent pole-mounted circuit breakers, enabling convenient installation and disassembly and improving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YUXIN ELECTRIC CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-26
AI Technical Summary
Existing intelligent pole-mounted circuit breakers are fixed by bolts. Frequent tightening of the bolts can easily cause stripping and loosening, resulting in safety accidents.
It adopts a plug-in fixing component, including a plug block, a rectangular block, a push block and a spring. The spring force realizes the engagement of the push block, replacing the traditional bolt installation method, and realizing convenient disassembly and installation.
This prevents bolts from stripping and falling off, improves the convenience of installation and disassembly, and prevents safety accidents.
Smart Images

Figure CN224288146U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit breaker technology, specifically an intelligent pole-mounted circuit breaker. Background Technology
[0002] Pole-mounted circuit breakers are circuit breakers installed and operated on utility poles. Vacuum circuit breakers are not limited to medium-voltage power grids, but are developing towards high voltage and large capacity.
[0003] In the prior art, such as the intelligent pole-mounted vacuum circuit breaker proposed in patent application number "CN202122535076.2", a housing is included. A vacuum tube is fixedly connected to the top of the housing, and an isolation mounting bracket is fixedly connected to the front of the housing. A heat-conducting plate is fixedly connected to the top of the inner wall of the housing, and a U-shaped plate is fixedly connected to the bottom of the heat-conducting plate. The bottom of the U-shaped plate is fixedly connected to the bottom of the inner wall of the housing, and a heat dissipation fin is fixedly connected to the bottom of the U-shaped plate. The bottom of the heat dissipation fin penetrates the housing and extends to the bottom of the housing. A bracket is provided on the back of the housing, and an exhaust fan is fixedly connected to the side of the bracket near the inside of the housing. A temperature sensor is fixedly connected to the front of the inner wall of the housing.
[0004] However, in the aforementioned patent, the existing intelligent pole-mounted circuit breaker is installed and fixed by bolts. When the circuit breaker needs to be disassembled for maintenance, frequent tightening of the bolts can cause the bolts to strip and fall off, which can easily lead to safety accidents. Utility Model Content
[0005] The purpose of this invention is to provide an intelligent pole-mounted circuit breaker to solve the problems mentioned in the background art.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] A smart pole-mounted circuit breaker includes a circuit breaker base and an isolation mounting bracket installed on the side of the circuit breaker base. The side of the circuit breaker base is provided with two fixing components and two locking components.
[0008] The fixing assembly includes two first fixing plates and two second fixing plates. Arc-shaped first connecting blocks and second connecting blocks are fixedly installed on opposite sides of the first fixing plates and the second fixing plates, respectively. Cylinders are inserted into the inner sides of the first connecting blocks and the second connecting blocks, and the cylinders fit against the inner sides of the first connecting blocks and the second connecting blocks.
[0009] The cylinder has a slot on its upper surface and a rectangular hole through one side of the cylinder on the inner side of the slot. A locking component is inserted into the cylinder. The locking component includes a plug block, a rectangular block fixedly mounted on one side of the plug block, a push block slidably mounted inside the rectangular block, and a spring fixed to one end of the push block inside the rectangular block. The plug block, the rectangular block, and the push block can only be slidably inserted into the inner side of the slot when the spring is compressed.
[0010] Furthermore, both ends of the circuit breaker base are vertically provided with sliding grooves. Two first fixing plates are fixedly installed on both sides of the isolation mounting bracket. Two second fixing plates are slidably disposed on both sides of the circuit breaker base. The sliding blocks and sliding grooves fixedly disposed at the ends of the second fixing plates are slidably engaged. After engagement, the positions of the first fixing plates and the second fixing plates are at the same height. Hidden grooves are provided inside the two first fixing plates. Threaded rods are threaded through the interior of the hidden grooves.
[0011] Furthermore, each of the two first connecting blocks has a placement groove on one side, and the two placement grooves are connected to the two hidden grooves in pairs. Each of the two first connecting blocks has a pair of grooves on its upper surface.
[0012] Furthermore, each of the two second connecting blocks has a pair of protrusions at one end, and the two pairs of protrusions are respectively inserted into the interior of the two pairs of grooves. Limiting blocks are provided on the inner side of the two second connecting blocks, and rectangular vertical grooves are opened through the upper surface of the two limiting blocks. The first connecting block and the second connecting block form a ring.
[0013] Furthermore, when the spring is in its natural state, the threaded rod and the end of the push block are in contact. By rotating the threaded rod, the push block can be pushed out of the placement slot and the rectangular hole, and the cylinder can be pulled out.
[0014] Furthermore, a vertical plate that slides and engages with the vertical groove is fixedly provided on the other side of the insert block. When the lower end of the vertical plate is inserted into the interior of the vertical groove, the position of the second fixing plate is fixed to prevent the second fixing plate from moving upward and disengaging from the circuit breaker base. A limiting groove that slides and engages with the limiting block is provided on the outer surface of the cylinder.
[0015] The beneficial effects of this utility model are:
[0016] This invention inserts a plug, a rectangular block, and a pusher block into the slot. Then, the spring force pushes the pusher block out of the rectangular hole into the placement groove, so that the pusher block engages inside the placement groove, thus fixing the circuit breaker to the upper end of the cylinder. The plug-in method replaces the bolt installation method, and the engaging installation method replaces the bolt installation method, making it easy to remove the circuit breaker from the cylinder. It achieves both installation and disassembly, avoiding the frequent tightening of bolts that could cause the bolts to strip and fall off, thus preventing safety accidents. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the isolation mounting bracket and the first fixing plate of this utility model;
[0020] Figure 3 This is a schematic diagram of the first connecting block and the placement groove structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the threaded rod and hidden groove structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the structure of the second connecting block and the limiting block of this utility model;
[0023] Figure 6 This is a schematic diagram of the cylindrical and insert structure of this utility model;
[0024] Figure 7 This is a schematic diagram of the rectangular block and the pusher block structure of this utility model.
[0025] The attached figures are labeled as follows:
[0026] 1. Circuit breaker base; 11. Isolation mounting bracket; 12. Sliding groove; 2. First fixing plate; 21. Hidden groove; 22. Threaded rod; 3. Second fixing plate; 31. Sliding block; 4. First connecting block; 41. Placement groove; 42. Groove; 5. Second connecting block; 51. Protrusion; 52. Limiting block; 521. Vertical groove; 6. Cylinder; 61. Limiting groove; 62. Slot; 63. Insertion block; 64. Rectangular block; 65. Spring; 66. Pushing block; 67. Rectangular hole; 68. Vertical plate. Detailed Implementation
[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0028] A smart pole-mounted circuit breaker includes a circuit breaker base 1 and an isolation mounting bracket 11 installed on the side of the circuit breaker base 1. The side of the circuit breaker base 1 is provided with two fixing components and two locking components. Both ends of the circuit breaker base 1 are provided with vertical sliding grooves 12.
[0029] The fixing assembly includes two first fixing plates 2 and two second fixing plates 3. The two first fixing plates 2 are fixedly installed on both sides of the isolation mounting bracket 11, and the two second fixing plates 3 are slidably disposed on both sides of the circuit breaker base 1. Sliding blocks 31 and sliding grooves 12 are fixedly disposed at the ends of the second fixing plates 3 and slide in cooperation with each other. After cooperation, the first fixing plates 2 and the second fixing plates 3 are at the same height. Each of the two first fixing plates 2 has a hidden groove 21 inside, and a threaded rod 22 is threaded through the hidden groove 21.
[0030] The first fixed plate 2 and the second fixed plate 3 are respectively fixedly provided with arc-shaped block-shaped first connecting block 4 and second connecting block 5 on opposite sides. Each of the two first connecting blocks 4 has a placement groove 41 on one side. The two placement grooves 41 are connected to the two hidden grooves 21 in pairs. Each of the two first connecting blocks 4 has a pair of grooves 42 on the upper surface.
[0031] Each of the two second connecting blocks 5 has a pair of protrusions 51 at one end. The two pairs of protrusions 51 are respectively inserted into the interior of the two pairs of grooves 42. Limiting blocks 52 are provided on the inner side of the two second connecting blocks 5. Rectangular vertical grooves 521 are opened through the upper surface of the two limiting blocks 52. The first connecting block 4 and the second connecting block 5 form a ring.
[0032] A cylinder 6 is inserted into the inner side of the first connecting block 4 and the second connecting block 5. The cylinder 6 fits against the inner side of the first connecting block 4 and the second connecting block 5. A slot 62 is opened on the upper surface of the cylinder 6. A rectangular hole 67 is opened on the inner side of the slot 62, penetrating one side of the cylinder 6. A locking component is inserted into the cylinder 6. The locking component includes a plug 63. A rectangular block 64 is fixedly installed on one side of the plug 63. A push block 66 is slidably installed inside the rectangular block 64. A spring 65 is fixed to one end of the push block 66 inside the rectangular block 64. When the spring 65 is compressed, the plug 63, the rectangular block 64 and the push block 66 can be slid into the inner side of the slot 62. When the push block 66 slides down to the rectangular hole 67, the spring force of the spring 65 pushes the push block 66 out of the rectangular block 64 into the rectangular hole 67 and slides into the placement slot 41. At this time, the position of the cylinder 6 is stuck between the first fixing plate 2 and the second fixing plate 3.
[0033] When the spring 65 is in its natural state, the threaded rod 22 and the end of the push block 66 are in contact. By rotating the threaded rod 22, the push block 66 can be pushed out of the placement groove 41 and the rectangular hole 67, and the cylinder 6 can be pulled out.
[0034] On the other side of the insert 63, a vertical plate 68 is fixedly provided, which slides and engages with the vertical groove 521. When the lower end of the vertical plate 68 is inserted into the interior of the vertical groove 521, the position of the second fixing plate 3 is fixed to prevent the second fixing plate 3 from moving upward and disengaging from the circuit breaker base 1. The outer surface of the cylinder 6 is provided with a limiting groove 61 that slides and engages with the limiting block 52. The circuit breaker is fixed to the upper end of the cylinder 6 by the first fixing plate 2 and the second fixing plate 3. After the threaded rod 22 is rotated to move the pushing block 66 into the interior of the rectangular hole 67, the insert 63 can be removed from the interior of the slot 62, so that the vertical plate 68 disengages from the vertical groove 521, making it easy to remove the circuit breaker from the upper end of the cylinder 6.
[0035] The working principle of the intelligent pole-mounted circuit breaker provided by this utility model is as follows:
[0036] When the circuit breaker base 1 is placed above the two cylinders 6, the two cylinders 6 are respectively placed inside the two first connecting blocks 4. The two second fixing plates 3 are respectively inserted into the two ends of the circuit breaker base 1, so that the first fixing plates 2 and the second fixing plates 3 are stable at the upper ends of the two cylinders 6. After the spring 65 is in the compressed state, the insert block 63, the rectangular block 64 and the push block 66 are inserted into the slot 62, so that the push block 66 moves to the rectangular hole 67. The spring 65 pushes the push block 66 out of the rectangular hole 67 into the placement slot 41, fixing the first fixing plate 2 to the upper end of the cylinder 6. When the lower end of the vertical plate 68 slides into the vertical slot 521, the second fixing plate 2 is fixed to the upper end of the cylinder 6. Plate 3 is fixed to the upper end of cylinder 6. The circuit breaker is fixed to the upper end of cylinder 6 by the first fixing plate 2 and the second fixing plate 3. By rotating the threaded rod 22, the push block 66 is pushed towards the insertion block 63, so that the push block 66 retracts into the interior of the rectangular hole 67, making it easy to remove the insertion block 63 from the interior of the slot 62. The intelligent pole-mounted circuit breaker is fixed to the upper end of cylinder 6. The plug-in method replaces the bolt. The snap-fit installation method prevents the bolt from falling off when the circuit breaker vibrates during operation. The position of the push block 66 is moved by the threaded rod 22, which makes it easy to remove the circuit breaker from cylinder 6. This prevents the bolt from stripping and falling off due to frequent tightening of the bolt, thus preventing safety accidents. The circuit breaker is easy to install and remove.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An intelligent pole-mounted circuit breaker comprising a circuit breaker base (1) and an isolation mounting bracket (11) mounted on the side end of the circuit breaker base (1), characterized in that, The side end of the circuit breaker base (1) is provided with two fixing components and two locking components; The fixing assembly includes two first fixing plates (2) and two second fixing plates (3). An arc-shaped first connecting block (4) and a second connecting block (5) are fixedly arranged on opposite sides of the first fixing plate (2) and the second fixing plate (3). A cylinder (6) is inserted into the inner side of the first connecting block (4) and the second connecting block (5). The cylinder (6) fits against the inner side of the first connecting block (4) and the second connecting block (5). The cylinder (6) has a slot (62) on its upper surface. The inner side of the slot (62) has a rectangular hole (67) that passes through one side of the cylinder (6). A locking component is inserted into the cylinder (6). The locking component includes a plug (63). A rectangular block (64) is fixedly installed on one side of the plug (63). A push block (66) is slidably installed inside the rectangular block (64). A spring (65) is fixed to one end of the push block (66) inside the rectangular block (64). When the spring (65) is compressed, the plug (63), the rectangular block (64) and the push block (66) can be slidably inserted into the inner side of the slot (62).
2. The intelligent pole-mounted circuit breaker of claim 1, wherein, The circuit breaker base (1) has vertical sliding grooves (12) at both ends. Two first fixing plates (2) are fixedly installed on both sides of the isolation mounting bracket (11). Two second fixing plates (3) are slidably installed on both sides of the circuit breaker base (1). The sliding block (31) fixed at the end of the second fixing plate (3) and the sliding groove (12) slide together. After the cooperation, the first fixing plate (2) and the second fixing plate (3) are at the same height. The interior of the two first fixing plates (2) has a hidden groove (21). The interior of the hidden groove (21) is threaded with a threaded rod (22).
3. The intelligent pole-mounted circuit breaker of claim 2, wherein, Each of the two first connecting blocks (4) has a placement groove (41) on one side, and the two placement grooves (41) are connected to the two hidden grooves (21) respectively. Each of the two first connecting blocks (4) has a pair of grooves (42) on its upper surface.
4. The intelligent pole-mounted circuit breaker of claim 1, wherein, Each of the two second connecting blocks (5) has a pair of protrusions (51) at one end. The two pairs of protrusions (51) are respectively inserted into the interior of the two pairs of grooves (42). Limiting blocks (52) are provided on the inner side of the two second connecting blocks (5). A rectangular vertical groove (521) is opened through the upper surface of the two limiting blocks (52). The first connecting block (4) and the second connecting block (5) form a ring.
5. The intelligent pole-mounted circuit breaker of claim 1, wherein, When the spring (65) is in its natural state, the threaded rod (22) and the end of the push block (66) are in contact. By rotating the threaded rod (22), the push block (66) can be pushed out of the placement groove (41) and the rectangular hole (67) to pull out the cylinder (6).
6. The intelligent pole-mounted circuit breaker of claim 1, wherein, On the other side of the insert (63), a vertical plate (68) is fixedly provided, which slides with the vertical groove (521). When the lower end of the vertical plate (68) is inserted into the interior of the vertical groove (521), the position of the second fixing plate (3) is fixed to prevent the second fixing plate (3) from moving upward and disengaging from the circuit breaker base (1). The outer surface of the cylinder (6) is provided with a limiting groove (61) that slides with the limiting block (52).