Three-position integrated pole-mounted circuit breaker

Abstract

The application relates to the technical field of circuit breakers, in particular to a three-position integrated pole-mounted circuit breaker; through the arrangement of sliding rails, wiring boards, mounting boxes, mounting blocks, limiting holes and conductive sheets, the core of the cable is moved to the inside of the mounting box by the mounting sheet, until the mounting sheet moves to the direction of the inclined groove, the mounting sheet is embedded into the inclined groove, so that the core of the cable is synchronously entered into the inclined groove, until the connecting block movement ends, the limiting column is moved into the limiting hole above the mounting box, so that the limiting column is bounced out of the column groove, the limiting column is bounced out of the limiting hole, the core installation is completed, and the core of the cable is in contact with the conductive sheet below the connecting block; conduction is realized; during the installation, the staff does not need to repeatedly disassemble the mounting box, and the installation efficiency of the staff on the cable is improved.

Description

Technical Field

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

[0002] A pole-mounted circuit breaker is an outdoor high-voltage switchgear installed on the poles of overhead power lines for segmented control of the line, fault isolation and power supply reliability assurance. Its core function is to connect the circuit during normal operation and quickly disconnect the circuit in case of fault (such as short circuit or overload). It also has the functions of isolating power supply and assisting in line maintenance. The terminal block on the pole-mounted circuit breaker is a terminal block and terminal socket (also called "outgoing terminal block" in some scenarios). It is a standardized conductive connection component integrated into the circuit breaker. Its essence is "circuit transfer and fixing hub". Its core function is to realize the reliable connection between the circuit breaker and the incoming and outgoing lines and drain lines of the overhead line, while standardizing the layout of the conductive circuit and facilitating maintenance and wiring operations. The terminal block is fixed to the side of the circuit breaker main support, perpendicular to the insulating bushing, and is divided into an incoming side terminal block and an outgoing side terminal block. When workers install cables, they usually remove the terminal block, then peel off the surface insulation layer of the cable, and then install the cable onto the terminal block. Afterwards, workers use screwdrivers and other tools to tighten the locking bolts, which fix the cable core in place, thus completing the cable installation. In this process, workers need to repeatedly remove and reinstall the terminal block, which reduces the installation efficiency.

[0003] In summary, to solve the technical problems raised in this paper, this invention proposes a three-position integrated pole-mounted circuit breaker. Summary of the Invention

[0004] To address the issue mentioned above where workers need to use screwdrivers and other tools to tighten locking bolts to secure the cable cores when installing cables onto a terminal block, resulting in reduced installation efficiency due to repeated disassembly and reassembly of the terminal block, this invention proposes a three-position integrated pole-mounted circuit breaker. This circuit breaker includes a circuit breaker body, a slide rail, and a terminal block. The slide rail is bolted to the circuit breaker body, and the terminal block is mounted on the slide rail. The terminal block includes: There are three mounting boxes, each with a hollow interior. The lower end of the mounting box is connected to the outside. The upper part of the interior of the mounting box is equipped with a mounting block, and the side of the mounting box has a limit hole. A conductive sheet is provided below the mounting block. The uppermost mounting box is fixed on the slide rail, and the two mounting boxes below it are slidably connected to the slide rail. The wiring hole is located on the mounting box and below the mounting block; There are three connecting blocks, which are set at the top of the two lower mounting boxes. The size of the connecting blocks is the same as the opening at the bottom of the mounting box, so that the connecting blocks are slidably connected to the inside of the mounting box. Each connecting block has a groove on both sides. The inside of the groove is slidably connected to the limiting post by a spring. In the initial state, the limiting post is located in the limiting hole at the bottom of each mounting box, and the connecting block at the bottom is slidably connected to the bottom of the bottom mounting box. The mounting plate is made of elastic copper sheet and is installed on the upper end of the connector block near the plug hole. In the initial state, the mounting plate is tilted towards the inside of the mounting box. An inclined groove is formed at the lower end of the connecting block, and the size of the inclined groove is larger than the size of the mounting plate.

[0005] As a preferred embodiment of this application, each mounting plate has a mounting hole that corresponds to a wire insertion hole, and the upper end of the mounting plate has a groove with a metal plate slidably connected inside the groove.

[0006] As a preferred embodiment of this application, the upper end of the metal plate contacts the lower end of the connecting block, and the upper end of the metal plate and the lower end of the connecting block rub against each other.

[0007] As a preferred embodiment of this application, the lower end of the mounting block is provided with a rectangular block, which is located at the end of the inclined groove away from the insertion hole, and the upper end of the connecting block is provided with a rectangular groove, and the rectangular groove and the rectangular block correspond to each other.

[0008] As a preferred embodiment of this application, an arc-shaped piece is provided in the middle of the mounting piece, and the arc-shaped piece is the end of the mounting piece closest to the insertion hole.

[0009] As a preferred embodiment of this application, the lower end of the arc-shaped piece is fixedly connected to the mounting piece, and the upper end of the arc-shaped piece is in contact with the mounting piece.

[0010] As a preferred embodiment of this application, a through groove is provided in the middle of the arc-shaped piece.

[0011] As a preferred embodiment of this application, a fixing plate is fixed on each of the two mounting boxes located below. The fixing plate and the plug hole are located on the same side, and a U-shaped groove is provided on the upper end of the fixing plate. The U-shaped groove corresponds to each plug hole. The fixing plate located at the bottom is fixed on the bottom connecting block, and the top of the fixing plate slides in contact with the outside of the mounting box above its fixing point.

[0012] The beneficial effects of this invention are as follows: The mounting plate moves the cable core into the mounting box until it reaches the inclined slot. The mounting plate then embeds itself into the slot, allowing the cable core to enter simultaneously. This continues until the connecting block finishes moving, at which point the limiting post moves to the limiting hole above the mounting box, ejecting from its slot and then from the limiting hole. The cable core installation is complete, and the core contacts the conductive plate below the connecting block, establishing conductivity. Furthermore, as the mounting plate slides along the lower end of the mounting block, its lower end slides against the lower end of the conductive plate, rubbing against it and cleaning the lower end of the conductive plate. This prevents the formation of an oxide layer, which reduces conductivity. This installation process eliminates the need for repeated disassembly of the mounting box, improving installation efficiency. Attached Figure Description

[0013] Figure 1 This is a perspective view of the mounting box in this invention; Figure 2 This is a front sectional view of the mounting box in this invention; Figure 3 This is a side sectional view of the mounting box in this invention; Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle; Figure 5 This is a structural view of the connecting block in this invention; Figure 6 yes Figure 5 A partial structural view at point B in the middle; Figure 7 This is an internal structural view of the mounting box in this invention; Figure 8 This is a structural view of the fixing plate in this invention; In the diagram: 2. Slide rail; 3. Terminal block; 31. Mounting box; 32. Mounting block; 311. Limiting hole; 321. Conductive sheet; 312. Socket hole; 33. Connecting block; 331. Limiting post; 34. Mounting piece; 332. Inclined groove; 341. Mounting hole; 342. Plate groove; 343. Metal plate; 35. Rectangular block; 333. Rectangular groove; 36. Arc-shaped piece; 361. Through groove; 37. Fixing plate; 38. U-shaped groove. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0015] Example 1: like Figures 1 to 8As shown; a three-position integrated pole-mounted circuit breaker; the circuit breaker includes a circuit breaker body, a slide rail 2, and a terminal block 3. The slide rail 2 is bolted to the circuit breaker body, and the terminal block 3 is mounted on the slide rail 2; the terminal block 3 includes: There are three mounting boxes 31, and each mounting box 31 is hollow inside. The lower end of the mounting box 31 is connected to the outside. The upper end of the interior of the mounting box 31 is provided with a mounting block 32. The side of the mounting box 31 is provided with a limit hole 311. A conductive sheet 321 is provided below the mounting block 32. The uppermost mounting box 31 is fixed on the slide rail 2, and the two mounting boxes 31 below are slidably connected to the slide rail 2. A wiring hole 312 is provided on the mounting box 31, and the wiring hole 312 is located below the mounting block 32; There are three connecting blocks 33, which are set on the upper end of the two lower mounting boxes 31. The size of the connecting block 33 is the same as the opening at the lower end of the mounting box 31, so that the connecting block 33 is slidably connected to the interior of the mounting box 31. Each connecting block 33 has a column groove on both sides. The inside of the column groove is slidably connected to the limiting column 331 by a spring. In the initial state, the limiting column 331 is located in the limiting hole 311 at the bottom of each mounting box 31, and the connecting block 33 at the bottom is slidably connected to the bottom of the lower mounting box 31. Mounting piece 34 is made of elastic copper sheet and is installed on the upper end of connecting block 33 near the wire insertion hole 312. In the initial state, mounting piece 34 is tilted towards the inside of mounting box 31. An inclined groove 332 is formed at the lower end of the connecting block 33, and the size of the inclined groove 332 is larger than the size of the mounting piece 34; Each mounting plate 34 has a mounting hole 341, which corresponds to the wire insertion hole 312. The upper end of the mounting plate 34 has a groove 342, and a metal plate 343 is slidably connected inside the groove 342. The upper end of the metal plate 343 contacts the lower end of the connecting block 33, and the upper end of the metal plate 343 and the lower end of the connecting block 33 rub against each other. The specific workflow is as follows; When installing cables on the circuit breaker, the worker first peels off the outer insulation layer of the cable. Then, the worker inserts the cable core into the insertion hole 312, allowing the core to enter the mounting box 31. Taking the uppermost mounting box 31 as an example, after the cable core is inserted into the insertion hole 312, a limiting hole 311 is made on the outside of the mounting box 31, and a limiting post 331 is set on the connecting block 33 below the limiting hole 311. The limiting post 331 is slidably connected to the post groove by a spring. When the cable core is inserted into the insertion hole 312... After that, the cable enters the interior of the mounting box 31. The staff presses the limiting post 331 below the corresponding mounting box 31, so that the limiting post 331 enters the interior of the post groove. Then the staff pushes the mounting box 31 below the corresponding mounting box 31 upward, so that the mounting box 31 located below moves upward on the slide rail 2. During the process, the connecting block 33 moves upward in the uppermost mounting box 31. The mounting piece 34 is set on the side of the connecting block 33 near the plug hole 312, so that the mounting piece 34 on the connecting block 33 moves upward synchronously as the connecting block 33 moves upward.During this process, by opening a mounting hole 341 at the upper end of the mounting plate 34, and having the mounting hole 341 correspond to the insertion hole 312, the wire core of the cable enters the interior of the mounting box 31 and then enters the interior of the mounting hole 341. A groove 342 is also opened at the upper end of the mounting plate 34, and a metal plate 343 slides within the groove 342. As the connecting block 33 moves upward, the mounting plate 34 moves upward synchronously. Since the initial state of the mounting plate 34 is tilted towards the end away from the insertion hole 312, during the upward movement of the mounting plate 34, the mounting plate... The upper end of mounting piece 34 contacts the lower end of mounting block 32, causing the lower end of mounting block 32 to press against the upper end of mounting piece 34 as mounting piece 34 continues to move upward. Because mounting piece 34 is made of elastic metal, the pressure from the lower end of mounting block 32 causes it to bend. During this process, the metal plate 343 on mounting piece 34 moves downward inside the slot 342, gradually pressing against the wire core in mounting hole 341. Subsequently, as connecting block 33 continues to move upward, the upper end of mounting piece 34 will press tightly against the mounting block. The conductive piece 321 at the lower end of 32 slides away from the insertion hole 312. During this process, the mounting piece 34 drives the cable core towards the interior of the mounting box 31 until the mounting piece 34 moves to the inclined groove 332. The mounting piece 34 then embeds into the inclined groove 332, allowing the cable core to enter the inclined groove 332 synchronously. This continues until the connecting block 33 finishes moving, and the limiting post 331 moves to the limiting hole 311 located above the mounting box 31. This causes the limiting post 331 to pop out of the groove and then out of the limiting hole 311, completing the installation of the cable core. The cable core contacts the conductive plate 321 below the connecting block 33, achieving conductivity. As the mounting plate 34 slides at the lower end of the mounting block 32, its lower end slides against the lower end of the conductive plate 321, causing friction and cleaning. This prevents oxide layers from forming on the lower end of the conductive plate 321, thus reducing its conductivity. Furthermore, this installation process eliminates the need for repeated disassembly of the mounting box 31, improving cable installation efficiency.

[0016] Example 2: like Figures 2 to 8 As shown; a rectangular block 35 is provided at the lower end of the mounting block 32. The rectangular block 35 is located at the end of the inclined groove 332 away from the insertion hole 312. A rectangular groove 333 is provided at the upper end of the connecting block 33, and the rectangular groove 333 corresponds to the rectangular block 35. The specific workflow is as follows; Based on the above embodiment 1, a rectangular block 35 is formed at the lower end of the mounting block 32, and the rectangular block 35 is located at the end of the inclined groove 332 away from the insertion hole 312. A rectangular groove 333 is formed at the upper end of the connecting block 33, so that the rectangular groove 333 corresponds to the rectangular block 35. When the connecting block 33 moves upward, the mounting piece 34 moves upward synchronously. The metal plate 343 at the upper end of the mounting piece 34 slides downward inside the groove 342, so that the lower end of the metal plate 343 limits the wire core in the mounting hole 341. As the connecting block 33 continues to move upward, the upper end of the mounting piece 34 will drive the wire core to move towards the inclined groove 332. During this process, after the wire core enters the mounting hole 341, the wire... The core passes through the mounting hole 341, so that when the mounting plate 34 moves the core towards the inclined groove 332, the core will come into contact with the rectangular block 35, causing the rectangular block 35 to block the core and bend it. After bending, the end of the core away from the insertion hole 312 is bent, thereby improving the fixation between the core and the mounting plate 34. Then the core enters the inclined groove 332 with the mounting plate 34 until the connecting block 33 finishes moving. After that, the rectangular block 35 below the mounting block 32 will be embedded in the rectangular groove 333 above the connecting block 33, thus limiting the movement between the mounting block 32 and the connecting block 33 and preventing horizontal movement between them.

[0017] Example 3: like Figures 1 to 8 As shown; an arc-shaped piece 36 is provided in the middle of the mounting piece 34, and the arc-shaped piece 36 is the end of the mounting piece 34 that is close to the insertion hole 312; The lower end of the arc-shaped piece 36 is fixedly connected to the mounting piece 34, and the upper end of the arc-shaped piece 36 is in contact with the mounting piece 34. A through groove 361 is provided in the middle of the arc-shaped piece 36; The specific workflow is as follows; Based on the above embodiment 2, an arc-shaped piece 36 is formed in the middle of the mounting piece 34, and the arc-shaped piece 36 is located at the end of the mounting piece 34 near the insertion hole 312. When the connecting block 33 moves upward, the upper end of the mounting piece 34 will squeeze the lower end of the mounting block 32, causing the mounting piece 34 to bend until the mounting piece 34 is embedded in the inclined groove 332. During this process, the arc-shaped piece 36 moves with the mounting piece 34, and the arc-shaped piece 36 gradually moves to the bottom of the mounting block 32. At the same time, the wire core located between the inclined groove 332 and the insertion hole 312 is located between the mounting block 32 and the arc-shaped piece 36. As the mounting piece 34 moves, the arc-shaped piece 36 will gradually squeeze the wire core, and during this process, the end of the arc-shaped piece 36 away from the mounting hole 341 is fixedly connected to the mounting piece 34, while the end of the arc-shaped piece 36 near the mounting hole 341 is in contact with the mounting piece 34. A through groove 361 is provided in the middle of the core, so that when the arc-shaped piece 36 squeezes the wire core, the arc-shaped piece 36 pushes the wire core, making the wire core and the conductive piece 321 below the mounting block 32 come into close contact. This avoids the problem of loose contact between the wire core and the conductive piece 321. Furthermore, by providing a through groove 361 on the arc-shaped piece 36, when the arc-shaped piece 36 squeezes the wire core and the arc-shaped piece 36 squeezes the mounting block 32, the arc-shaped piece 36 will deform. Specifically, the arc-shaped piece 36 will bend from its initial arc-shaped bending state to a more straight state. During this process, the through groove 361 will move relative to the surface of the wire core, so that the edge of the through groove 361 will rub against the surface of the wire core, thereby cleaning the surface of the wire core and preventing the formation of an oxide layer on the surface of the wire core, which would reduce the conductivity of the wire core.

[0018] Example 4: like Figures 1 to 8 As shown; two mounting boxes 31 located at the bottom are each fixed with a fixing plate 37. The fixing plate 37 and the wire insertion hole 312 are located on the same side. The upper end of the fixing plate 37 is provided with a U-shaped groove 38, and the U-shaped groove 38 corresponds to each wire insertion hole 312. The fixing plate 37 located at the bottom is fixed on the lowermost connecting block 33, and the upper part of the fixing plate 37 slides in contact with the outer side of the mounting box 31 above its fixing point. The specific workflow is as follows; Based on the above embodiment, fixing plates 37 are provided on both of the lower mounting boxes 31, and U-shaped grooves 38 are formed at the upper end of the fixing plates 37, with the U-shaped grooves 38 corresponding to each insertion hole 312. This allows the lowermost fixing plate 37 to be fixed on the lowermost connecting block 33. Taking the uppermost mounting box 31 as an example, after the wire core is inserted into the interior of the mounting box 31 through the insertion hole 312, the operator moves the lower mounting box 31 upwards. During this process, a fixing plate is provided on the outer side of the lower mounting box 31. 37 moves upward synchronously, and during the initial upward movement of the mounting box 31, the fixing plate 37 moves upward. The fixing plate 37 on the central mounting box 31 moves upward, during which the insertion hole 312 is inserted into the U-shaped groove 38. Simultaneously, the cable located outside the insertion hole 312 enters the U-shaped groove 38. The U-shaped groove 38 causes the cable outside the insertion hole 312 to bend, and simultaneously, the U-shaped groove 38 on the fixing plate 37 fixes the cable. As the connecting block 33 continues to move upward, the fixing plate 37 continuously and consistently fixes the cable. During this process, the metal plate 343 on the mounting plate 34 moves downward in the plate groove 342, causing the metal plate 343 and the mounting hole 341 on the mounting plate 34 to clamp the wire core. As the connecting block 33 continues to move upward, the mounting plate 34 and the metal plate 343 move towards the inclined groove 332. During this process, the metal plate 343 and the mounting hole 341 clamp the wire core, causing the metal plate 343 to move on the surface of the wire core. This allows the metal plate 343 and the mounting hole 341 to clean the oxide layer on the surface of the wire core, thereby preventing metal oxidation on the surface of the wire core. The layer causes an increase in the resistance of the wire core; after the connecting block 33 has moved, the fixing plate 37 and the U-shaped groove 38 seal the plug hole 312 to prevent external dust from entering the plug hole 312; and if the bottom mounting box 31 is to be disconnected, the staff needs to manually push the bottom connecting block 33. The lower end of the bottom connecting block 33 is connected to the bottom fixing plate 37, so that the bottom connecting block 33 pushes the bottom fixing plate 37 upward, thereby installing the cable in the bottom mounting box 31.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-position integrated pole-mounted circuit breaker, comprising a circuit breaker body, a slide rail (2), and a terminal block (3), wherein the slide rail (2) is bolted to the circuit breaker body, and the terminal block (3) is mounted on the slide rail (2); characterized in that, The junction box (3) includes: There are three mounting boxes (31), and each mounting box (31) is hollow inside. The lower end of the mounting box (31) is connected to the outside. The upper end of the inside of the mounting box (31) is provided with a mounting block (32). The side of the mounting box (31) is provided with a limit hole (311). A conductive sheet (321) is provided below the mounting block (32). The uppermost mounting box (31) is fixed on the slide rail (2), and the two mounting boxes (31) below are slidably connected to the slide rail (2). A wiring hole (312) is provided on the mounting box (31) and is located below the mounting block (32); There are three connecting blocks (33), which are set on the upper end of the two mounting boxes (31) located below. The size of the connecting block (33) is the same as the opening at the lower end of the mounting box (31), so that the connecting block (33) and the interior of the mounting box (31) are slidably connected. Each connecting block (33) has a column groove on both sides. The inside of the column groove is slidably connected to the limiting column (331) by a spring. In the initial state, the limiting column (331) is located in the limiting hole (311) at the bottom of each mounting box (31), and the connecting block (33) at the bottom is slidably connected to the bottom mounting box (31) below. The mounting plate (34) is made of elastic copper sheet and is installed on the upper end of the connecting block (33) near the wire insertion hole (312). In the initial state, the mounting plate (34) is tilted towards the inside of the mounting box (31). An inclined groove (332) is formed at the lower end of the connecting block (33), and the size of the inclined groove (332) is larger than the size of the mounting piece (34).

2. A three-position integrated pole-mounted circuit breaker as claimed in claim 1, characterized in that: Each mounting plate (34) has a mounting hole (341) which corresponds to the wire insertion hole (312). The upper end of the mounting plate (34) has a groove (342) which is slidably connected to a metal plate (343).

3. A three-position integrated pole-mounted circuit breaker as described in claim 2, characterized in that: The upper end of the metal plate (343) contacts the lower end of the connecting block (33), and the upper end of the metal plate (343) and the lower end of the connecting block (33) rub against each other.

4. A three-position integrated pole-mounted circuit breaker as claimed in claim 1, characterized in that: The lower end of the mounting block (32) is provided with a rectangular block (35), which is located at the end of the inclined groove (332) away from the insertion hole (312). The upper end of the connecting block (33) is provided with a rectangular groove (333), and the rectangular groove (333) corresponds to the rectangular block (35).

5. A three-position integrated pole-mounted circuit breaker as claimed in claim 2, characterized in that: An arc-shaped piece (36) is provided in the middle of the mounting piece (34), and the arc-shaped piece (36) is the end of the mounting piece (34) near the insertion hole (312).

6. A three-position integrated pole-mounted circuit breaker as claimed in claim 5, characterized in that: The lower end of the arc-shaped piece (36) is fixed to the mounting piece (34), and the upper end of the arc-shaped piece (36) is in contact with the mounting piece (34).

7. A three-position integrated pole-mounted circuit breaker as claimed in claim 6, characterized in that: A through groove (361) is provided in the middle of the arc-shaped piece (36).

8. A three-position integrated pole-mounted circuit breaker as claimed in claim 1, characterized in that: Fixing plates (37) are fixed on the two mounting boxes (31) located below. The fixing plates (37) and the plug holes (312) are located on the same side. The upper end of the fixing plate (37) is provided with a U-shaped groove (38), and the U-shaped groove (38) corresponds to each plug hole (312). The fixing plate (37) located at the bottom is fixed on the connecting block (33) at the bottom. The top of the fixing plate (37) slides in contact with the outside of the mounting box (31) above its fixing point.

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