A primary and secondary integrated pole-mounted circuit breaker

Abstract

This application relates to the field of circuit breaker technology, and more particularly to a primary and secondary integrated pole-mounted circuit breaker, comprising: a circuit breaker body, on which at least one limiting rod is connected; multiple fixing posts, the fixing posts being perpendicularly connected to the circuit breaker body, and a locking bar being rotatably connected to each fixing post, the rotation axis of the locking bar being coaxial with the fixing post; a hollow locking box, the top wall of which has multiple strip grooves, the locking bar passing through the strip grooves and rotating to abut against the top wall of the inner cavity of the locking box, and the locking box having at least one limiting hole for the limiting rod to pass through; and a driving unit for driving the locking bar to rotate, the driving unit being connected to the locking box and the fixing posts; this application has the effect of reducing the possibility of the fixed structure being eroded by rainwater, thereby improving the installation reliability of the circuit breaker.

Description

Technical Field

[0001] This application relates to the field of circuit breaker technology, and in particular to a primary and secondary integrated pole-mounted circuit breaker. Background Technology

[0002] Circuit breakers are intelligent switching devices in power systems that combine control and protection functions. Their core mission is to safely interrupt fault current. Among them, the integrated primary and secondary pole-mounted circuit breaker is a new type of distribution automation equipment that deeply integrates traditional pole-mounted circuit breakers with intelligent terminal equipment, realizing the goal of upgrading the distribution network by making primary equipment intelligent and secondary equipment standardized.

[0003] The prior art discloses an outdoor pole-mounted high-voltage permanent magnet vacuum circuit breaker, which includes a housing with a permanent magnet operating device and three solid-sealed poles; the permanent magnet operating device includes a main shaft, a linkage, and a permanent magnet drive mechanism; the permanent magnet drive mechanism includes a housing, a drive rod, and a manual tripping device; the drive rod is arranged parallel to the main shaft, and both ends of the drive rod extend out of the housing, with an annular tripping boss at the end of the drive rod near the linkage; the manual tripping device includes a base with a shaft hole fixedly mounted on the outer wall of the housing near the linkage, a manual tripping shaft disposed in the shaft hole, a cam fixed to the end of the manual tripping shaft, and an elastic element that provides elastic force for resetting the manual tripping shaft; the cam is disposed between the outer wall of the housing near the linkage and the annular tripping boss of the drive rod.

[0004] Regarding the aforementioned technologies, during installation, the vacuum circuit breaker is typically fixed to the mounting bracket using bolts and nuts. The mounting bracket is then fixed to the top of the column using clamps. Since vacuum circuit breakers are generally installed outdoors, the bolt and nut structure is subject to continuous corrosion from rainwater. As the service time increases, the bolt and nut structure rusts, which not only affects the installation reliability of the vacuum circuit breaker. Summary of the Invention

[0005] To reduce the possibility of fixed structures being eroded by rainwater and thus improve the installation reliability of circuit breakers, this application provides a primary and secondary integrated pole-mounted circuit breaker.

[0006] The technical solution for a primary and secondary integrated pole-mounted circuit breaker provided in this application is as follows:

[0007] A primary and secondary integrated pole-mounted circuit breaker includes:

[0008] The circuit breaker body has at least one limiting rod connected to it.

[0009] Multiple fixing posts are provided, which are perpendicularly connected to the circuit breaker body, and a locking bar is rotatably connected to each fixing post, with the rotation axis of the locking bar being coaxial with the fixing post.

[0010] The locking box is hollow, with its top wall fitting snugly against the circuit breaker body. Multiple slots are provided on the top wall of the locking box. The locking bar can rotate and abut against the top wall of the inner cavity of the locking box after passing through the slots. The locking box also has at least one limiting hole for the limiting rod to pass through.

[0011] A drive unit for driving the locking bar to rotate, the drive unit being connected to the locking box and the fixed post.

[0012] By adopting the above technical solution, the relative positions of the circuit breaker body and the locking box are adjusted so that the limiting rod is aligned with the limiting hole on the locking box. Then, the circuit breaker body and the locking box are brought closer together until the limiting rod is inserted into the limiting hole, thus limiting the radial displacement of the circuit breaker body along the limiting rod and the horizontal rotation of the circuit breaker body. At this time, the position of the locking bar corresponds to the position of the slot. The fixing column drives the locking bar to move until the locking bar moves into the inner cavity of the locking box. Then, the driving unit applies force to the locking bar, causing the locking bar to rotate and maintain a certain angle with the slot, such as 45 degrees, 60 degrees, or 90 degrees. At this time, the locking bar and the top wall of the inner cavity of the locking box limit the displacement of the circuit breaker body along the axis of the limiting rod. At this time, the circuit breaker body and the locking box are connected and remain relatively stationary. Then, the locking box is installed on the top of the column using a clamp structure. Since the fixing column and the locking bar are both located in the inner cavity of the locking box... Furthermore, the slot is enclosed by the circuit breaker body, so the possibility of the fixing post and locking strip being corroded after contact with natural rainwater is extremely small, thereby improving the installation reliability of the circuit breaker. The designed primary and secondary integrated pole-mounted circuit breaker can realize the circuit switching function through the circuit breaker body. The limit plug can cooperate with the limit hole to limit the displacement of the circuit breaker body relative to the locking box on the horizontal plane. The fixing post, locking strip and locking box can limit the displacement of the circuit breaker body relative to the locking box along the axial direction of the limit plug. Since the fixing post and locking strip are located in the inner cavity of the locking box and the slot is enclosed by the circuit breaker body, the possibility of the fixing post and locking strip being corroded after contact with natural rainwater is extremely small, thereby improving the installation reliability of the circuit breaker. The locking strip can be rotated by the drive unit, so that after the locking strip passes through the slot, the locking strip and the slot maintain a certain angle and abut against the top wall of the inner cavity of the locking box.

[0013] In one specific implementation, a reset torsion spring is fitted on the fixed column, and the reset torsion spring is connected to the locking bar. When the reset torsion spring is in its natural state, the circuit breaker body moves along the axial direction of the limiting plug towards the side away from the locking box, and the locking bar can pass through the strip groove.

[0014] By adopting the above technical solution, the designed reset torsion spring, in the initial installation state or during later disassembly and maintenance, after the drive column stops rotating in the opposite direction and applies force to the locking bar, the locking bar will rotate relative to the fixed column under the torque of the reset torsion spring, thereby achieving the position correspondence with the strip groove, so as to facilitate the removal of the locking bar from the inner cavity of the locking box.

[0015] In one specific implementation, the drive unit includes:

[0016] Multiple hollow drive columns are provided, which can rotate relative to the locking box. After the fixed column extends into the inner cavity of the drive column, the serrated end of the fixed column can cooperate with the serrated part of the locking bar.

[0017] A drive mechanism for rotating the drive column, the drive mechanism being connected to the drive column and the locking box.

[0018] By adopting the above technical solution, the designed drive unit can achieve the rotation of the locking bar by the serrated end of the upper end of the drive column cooperating with the serrated part of the lower end of the locking bar, and the drive mechanism can drive the drive column to rotate.

[0019] In one specific implementation, the locking bar is slidable along the axial direction of the fixed post, and a threaded area is formed on the fixed post and a threaded area is formed on the inner cavity of the drive post, so as to realize the threaded connection between the fixed post and the drive post.

[0020] By adopting the above technical solution, after the locking bar passes through the slot and enters the inner cavity of the locking box, the driving mechanism applies force to the driving column to make the driving column rotate. Since the driving column can be threadedly connected to the fixed column, the driving column will also move along the axial direction of the fixed column while rotating, so that the locking bar moves along the axial direction of the fixed column toward the top wall of the inner cavity of the locking box until the locking bar is pressed against the top wall of the inner cavity of the locking box. The designed threaded connection of the fixed column and driving column, as well as the locking bar that can slide along the axial direction of the fixed column, can make the driving column apply a force toward the top wall of the inner cavity of the locking box through the threaded connection, thereby improving the tightness of the connection between the locking bar and the top wall of the inner cavity of the locking box.

[0021] In one specific implementation, the drive mechanism includes:

[0022] Multiple rotating rods are rotatably connected to the locking box and slidably connected to the drive column. The drive column remains relatively stationary with respect to the rotating rods along the rotation direction of the rotating rods.

[0023] A driving component, which is connected to the rotating rod, is used to rotate the rotating rod.

[0024] By adopting the above technical solution, the designed drive mechanism can realize the rotation of the rotating rod through the drive component. Under the premise of realizing the rotation control of the drive column, the drive column can slide along the axial direction of the rotating rod, thereby cooperating with the threaded connection between the drive column and the fixed column.

[0025] In one specific implementation scheme, an abutment spring is fitted on the rotating rod, with one end of the abutment spring abutting against the driving column and the other end abutting against the bottom wall of the inner cavity of the locking box.

[0026] By adopting the above technical solution, the designed abutment spring can make the threaded area on the drive column abut against the fixed column, thereby facilitating the threaded connection between the drive column and the fixed column. It can also apply a certain preload to the drive column, reducing the possibility of the drive column becoming loose between the drive column and the fixed column due to the vibration of the circuit breaker body.

[0027] In one specific implementation, the drive unit includes a plurality of external torsion discs, which are connected to the extension of the rotating rod extending out of the locking box.

[0028] By adopting the above technical solution, the designed drive component can apply force to the rotating rod through the external torsion disc to achieve rotation control of the rotating rod. Furthermore, the external torsion disc is located on the bottom wall of the locking box, making it less likely to be directly exposed to sunlight and rain.

[0029] In one specific implementation scheme, a limiting pin is also included. The external torsion disc has through holes. After the external torsion disc rotates, multiple through holes can be made to be in a coaxial state. The limiting pin passes through multiple through holes in a coaxial state.

[0030] By adopting the above technical solution, the designed limit pin can realize the rotation limit between multiple external torsion discs, thereby preventing the possibility of locking failure due to the vibration of the circuit breaker body after the locking bar abuts against the top wall of the locking box cavity.

[0031] In one specific implementation, both the locking box and the locking bar are embedded with multiple magnetic blocks, and the magnetic blocks on the locking bar can be magnetically attracted and fixed to the magnetic blocks on the locking box after the locking bar is rotated.

[0032] By adopting the above technical solution, the designed magnetic block can improve the connection reliability between the locking strip and the locking box.

[0033] In one specific implementation, the top wall of the locking box is bent downwards to form a waterproof arc surface, and the circuit breaker body has an arc-shaped surface adapted to the waterproof arc surface.

[0034] By adopting the above technical solution, the design of the locking box with the top wall curved downward to form a waterproof arc surface can reduce the possibility of rainwater flowing along the contact surface between the circuit breaker body and the locking box and then seeping into the inner cavity of the locking box through the strip groove.

[0035] In summary, this application includes at least one of the following beneficial technical effects:

[0036] 1. The designed primary and secondary integrated pole-mounted circuit breaker enables circuit switching through the circuit breaker body. The limiting rod, in conjunction with the limiting hole, restricts the displacement of the circuit breaker body relative to the locking box on the horizontal plane. The fixed post, locking bar, and locking box work together to restrict the displacement of the circuit breaker body relative to the locking box along the axial direction of the limiting rod. Since the fixed post and locking bar are located inside the locking box cavity, and the slot is enclosed by the circuit breaker body, the possibility of corrosion of the fixed post and locking bar after contact with natural rainwater is extremely small, thereby improving the installation reliability of the circuit breaker. The locking bar can be rotated by the drive unit, so that after the locking bar passes through the slot, it maintains a certain angle with the slot and abuts against the top wall of the locking box cavity.

[0037] 2. The designed primary and secondary integrated pole-mounted circuit breaker, through the threaded connection of the fixed column and the drive column, and the locking bar that can slide along the axial direction of the fixed column, allows the drive column to apply a force toward the top wall of the locking box cavity through the threaded connection, thereby improving the tightness of the connection between the locking bar and the top wall of the locking box cavity.

[0038] 3. The designed primary and secondary integrated pole-mounted circuit breaker, through the abutment spring, allows the threaded area on the drive column to abut against the fixed column, thereby facilitating the threaded connection between the drive column and the fixed column. It can also apply a certain preload to the drive column, reducing the possibility of the drive column loosening between the drive column and the fixed column due to the vibration of the circuit breaker body. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of the secondary integrated pole-mounted circuit breaker according to Embodiment 1 of this application.

[0040] Figure 2 yes Figure 1 The first part is a structural diagram, mainly used to show the circuit breaker body and related structures connected to the circuit breaker body.

[0041] Figure 3 yes Figure 1 The second part of the structural diagram is mainly used to show the locking box and related structures connected to the locking box.

[0042] Figure 4 yes Figure 1The sectional view is mainly used to show the waterproof arc surface.

[0043] Figure 5 yes Figure 4 The enlarged view of section A in the diagram is mainly used to show the specific structure of the drive unit.

[0044] Explanation of reference numerals in the attached drawings: 1. Circuit breaker body; 11. Limiting rod; 2. Fixing post; 3. Locking bar; 4. Locking box; 41. Strip groove; 42. Limiting hole; 5. Drive unit; 51. Drive post; 52. Drive mechanism; 521. Rotating rod; 522. Drive component; 5221. External torsion disc; 523. Abutment spring; 524. Limiting pin; 6. Reset torsion spring; 7. Magnetic block; 8. Waterproof arc surface. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0046] This application discloses a primary and secondary integrated pole-mounted circuit breaker.

[0047] Reference Figure 1 and Figure 2 A primary and secondary integrated pole-mounted circuit breaker includes a circuit breaker body 1, a limiting rod 11, a fixing post 2, and a locking bar 3. The limiting rod 11 is welded and fixed to the circuit breaker body 1, and is arranged perpendicular to the circuit breaker body 1. The fixing post 2 is arranged perpendicular to the circuit breaker body 1, and is welded and fixed to the circuit breaker body 1. The axis of the fixing post 2 is consistent with that of the limiting rod 11. The locking bar 3 is rotatably connected to the fixing post 2, and the axis of rotation of the locking bar 3 is coaxial with that of the fixing post 2. In this application, the number of limiting rods 11 is at least one, and the number of fixing posts 2 and locking bars 3 is the same, both being multiple. In this embodiment, the number of limiting rods 11 can be two, three, or other numbers. The number of fixing posts 2 can be two, three, or other numbers. In this embodiment, the number of limiting rods 11 is two, and the number of fixing posts 2 and locking bars 3 is three.

[0048] Reference Figure 3 Furthermore, the primary and secondary integrated pole-mounted circuit breaker also includes a locking box 4. The locking box 4 is hollow, and its top wall is fitted to the bottom wall of the circuit breaker body 1. The top wall of the locking box 4 has multiple strip grooves 41. The locking bar 3 passes through the strip grooves 41 and rotates, so that the locking bar 3 can abut against the inner top wall of the locking box 4. The locking box 4 has at least one limiting hole 42 for the limiting rod 11 to pass through. In this embodiment, there are two limiting holes 42. The limiting rod 11 is slidably connected to the locking box 4.

[0049] Reference Figure 3Specifically, in order to reduce the possibility of rainwater flowing into the inner cavity of the locking box 4 through the strip groove 41 after flowing into the contact surface between the circuit breaker body 1 and the locking box 4, the top wall of the locking box 4 is bent downward to form a waterproof arc surface 8, and an arc-shaped surface adapted to the shape of the waterproof arc surface 8 is formed on the bottom wall of the circuit breaker body 1.

[0050] Reference Figure 4 and Figure 5 Furthermore, a reset torsion spring 6 is fitted on the fixed column 2. The reset torsion spring 6 is welded and fixed to the locking strip 3. When the reset torsion spring 6 is in its natural state, i.e., relaxed state, the circuit breaker body 1 moves along the axial direction of the limit rod 11 toward the side away from the locking box 4, and the locking strip 3 can pass through the strip groove 41. Through the reset torsion spring 6, in the initial installation state or during later disassembly and maintenance, after the drive column 51 rotates in the opposite direction and stops applying force to the locking strip 3, the locking strip 3 will rotate relative to the fixed column 2 under the torque of the reset torsion spring 6, thereby achieving a positional correspondence with the strip groove 41, so as to facilitate the removal of the locking strip 3 from the inner cavity of the locking box 4.

[0051] Reference Figure 5 After the locking bar 3 is rotated into position, in order to improve the certainty of the position of the locking bar 3, multiple magnetic blocks 7 are embedded in both the locking box 4 and the locking bar 3. The magnetic blocks 7 on the locking bar 3 can be magnetically attracted and fixed to the magnetic blocks 7 on the locking box 4 after the locking bar 3 is rotated.

[0052] Reference Figure 5 In order to achieve the rotation drive of the locking bar 3 after the circuit breaker body 1 and the locking box 4 are attached, the primary and secondary integrated pole-mounted circuit breaker also includes a drive unit 5. The drive unit 5 is connected to the locking box 4 and the fixed column 2. Specifically, the drive unit 5 includes a drive column 51 and a drive mechanism 52. The drive column 51 and the locking box 4 can rotate relative to each other. The upper end of the fixed column 2 is formed with a serrated end, and the lower end of the locking bar 3 is formed with a serrated part adapted to the serrated end. After the fixed column 2 extends into the inner cavity of the drive column 51, the serrated end on the fixed column 2 can cooperate with the serrated part on the locking bar 3. The drive mechanism 52 is connected to the drive column 51 and the locking box 4, and is used to make the drive column 51 rotate. In this application, there are multiple drive columns 51 and the number of drive columns 51 is the same as the number of fixed columns 2.

[0053] Reference Figure 5Furthermore, the locking bar 3 can slide along the axial direction of the fixed post 2, and a threaded area is formed on the fixed post 2. A threaded area is also formed on the inner cavity of the drive post 51. The threaded area on the drive post 51 can cooperate with the threaded area on the fixed post 2 to achieve a threaded connection between the drive post 51 and the fixed post 2. Through the threaded connection between the fixed post 2 and the drive post 51, and the locking bar 3 which can slide along the axial direction of the fixed post 2, the drive post 51 can apply a force toward the top wall of the inner cavity of the locking box 4 by the threaded connection, thereby improving the tightness of the connection between the locking bar 3 and the top wall of the inner cavity of the locking box 4.

[0054] Reference Figure 5 Specifically, the drive mechanism 52 includes a rotating rod 521 and a drive component 522. The rotating rod 521 is rotatably connected to the locking box 4 via a sealed bearing, and the rotating rod 521 is slidably connected to the drive column 51. The drive column 51 remains relatively stationary with respect to the rotating rod 521 along the rotation direction of the rotating rod 521. In this application, there are multiple rotating rods 521, which are the same number as the drive columns 51. The cross-section of the rotating rod 521 can be triangular, rectangular, or other non-rotational shapes. The cross-sectional shape of the inner cavity of the sliding connection area between the lower end of the drive column 51 and the rotating rod 521 is consistent with the cross-sectional shape of the rotating column and is sized to match. The rotation of the rotating rod 521 can be achieved through the drive component 522. Under the premise of achieving rotation control of the drive column 51, the drive column 51 can slide along the axial direction of the rotating rod 521 to match the threaded connection between the drive column 51 and the fixed column 2.

[0055] Reference Figure 5 A retaining spring 523 is fitted on the rotating rod 521. One end of the retaining spring 523 abuts against the driving column 51, and the other end abuts against the bottom wall of the inner cavity of the locking box 4. Through the retaining spring 523, the driving column 51 can abut against the threaded area on the fixed column 2, thereby facilitating the threaded connection between the driving column 51 and the fixed column 2. It can also apply a certain preload to the driving column 51, reducing the possibility of the driving column 51 becoming loose between the fixed column 2 due to the vibration of the circuit breaker body 1. The driving component 522 is connected to the rotating rod 521 and is used to rotate the rotating rod 521. Specifically, the driving component 522 includes multiple external torsion discs 5221. The external torsion discs 5221 are welded and fixed to the outer extension of the rotating rod 521 that extends out of the locking box 4. The external torsion discs 5221 can apply force to the rotating rod 521 to achieve the rotation control of the rotating rod 521. The external torsion discs 5221 are located on the bottom wall of the locking box 4, and are less likely to be directly exposed to sun and rain.

[0056] Reference Figure 4 and Figure 5Furthermore, it also includes a limiting pin 524, and an external torsion disc 5221 with through holes. After the external torsion disc 5221 rotates, multiple through holes can be made to be in a coaxial state, and the limiting pin 524 can pass through multiple through holes in a coaxial state. This can realize the rotation limit between multiple external torsion discs 5221, thereby preventing the possibility of locking failure of the locking strip 3 due to vibration of the circuit breaker body 1 after the locking strip 3 abuts against the top wall of the inner cavity of the locking box 4.

[0057] The implementation principle of a primary and secondary integrated pole-mounted circuit breaker according to an embodiment of this application is as follows: Adjust the relative positions of the circuit breaker body 1 and the locking box 4 so that the limiting rod 11 is aligned with the limiting hole 42 on the locking box 4. Then, bring the circuit breaker body 1 and the locking box 4 closer together until the limiting rod 11 is inserted into the limiting hole 42, thus limiting the radial displacement of the circuit breaker body 1 along the limiting rod 11 and limiting the horizontal rotation of the circuit breaker body 1. At this time, the position of the locking strip 3 corresponds to the position of the strip groove 41. The fixing column 2 drives the locking strip 3 to move until the locking strip 3 moves into the inner cavity of the locking box 4. After entering the inner cavity of the locking box 4 through the slot 41, the driving mechanism 52 applies force to the driving column 51, causing the driving column 51 to rotate. Since the driving column 51 can be threadedly connected to the fixed column 2, it also moves axially along the fixed column 2 while rotating. This causes the locking bar 3 to move axially along the fixed column 2 towards the top wall of the inner cavity of the locking box 4 until the locking bar 3 abuts against the top wall of the inner cavity of the locking box 4. At this point, the locking bar 3 maintains a certain angle with the slot 41, such as 45 degrees, 60 degrees, or 90 degrees, thus limiting the displacement of the circuit breaker body 1 along the axis of the limiting rod 11. At this point, the circuit breaker... The circuit breaker body 1 and locking box 4 are connected and remain relatively stationary. The locking box 4 is then installed on the top of the column using a clamping structure. Since the fixing column 2 and locking strip 3 are located inside the locking box 4, and the strip groove 41 is enclosed by the circuit breaker body 1, the possibility of corrosion of the fixing column 2 and locking strip 3 after contact with natural rainwater is extremely small, thus improving the installation reliability of the circuit breaker. The circuit breaker body 1 enables the circuit switching function, and the limiting rod 11, in conjunction with the limiting hole 42, restricts the displacement of the circuit breaker body 1 relative to the locking box 4 on the horizontal plane. 2. The locking bar 3 and the locking box 4 work together to limit the displacement of the circuit breaker body 1 relative to the locking box 4 along the axial direction of the limiting rod 11. Since the fixing post 2 and the locking bar 3 are both located in the inner cavity of the locking box 4, and the strip groove 41 is also closed by the circuit breaker body 1, the possibility of the fixing post 2 and the locking bar 3 being corroded after contact with natural rainwater is extremely small, thereby improving the installation reliability of the circuit breaker. The locking bar 3 can be rotated by the drive unit 5, so that after the locking bar 3 passes through the strip groove 41, the locking bar 3 and the strip groove 41 maintain a certain angle and abut against the top wall of the inner cavity of the locking box 4.

[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker, characterized in that: include: The circuit breaker body (1) is connected to at least one limiting rod (11): Multiple fixed posts (2) are perpendicularly connected to the circuit breaker body (1), and a locking bar (3) is rotatably connected to the fixed post (2), with the rotation axis of the locking bar (3) being coaxial with the fixed post (2). A hollow locking box (4) is provided, the top wall of the locking box (4) is fitted to the circuit breaker body (1), and multiple strip grooves (41) are provided on the top wall of the locking box (4). The locking bar (3) passes through the strip groove (41) and rotates to abut against the top wall of the inner cavity of the locking box (4). At least one limiting hole (42) is provided on the locking box (4) for the limiting plug (11) to pass through. A drive unit (5) for driving the locking bar (3) to rotate, the drive unit (5) being connected to the locking box (4) and the drive unit (5) being connected to the fixed post (2); A reset torsion spring (6) is sleeved on the fixed column (2), and the reset torsion spring (6) is connected to the locking bar (3). When the circuit breaker body (1) moves along the axial direction of the limiting plug (11) toward the side away from the locking box (4), the reset torsion spring (6) is in a natural state, and the locking bar (3) can pass through the strip groove (41). The driving unit (5) includes: Multiple hollow drive columns (51) are provided, and the drive columns (51) and the locking box (4) can rotate relative to each other. After the fixing column (2) extends into the inner cavity of the drive column (51), the serrated end of the drive column (51) can cooperate with the serrated part of the locking bar (3). A drive mechanism (52) for rotating the drive column (51), the drive mechanism (52) being connected to the drive column (51) and the lock box (4); The locking bar (3) can slide along the axial direction of the fixed post (2), and a threaded area is formed on the fixed post (2) and a threaded area is formed on the inner cavity of the drive post (51) to realize the threaded connection between the fixed post (2) and the drive post (51).

2. The integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: The drive mechanism (52) includes: Multiple rotating rods (521) are rotatably connected to the locking box (4), and the rotating rods (521) are slidably connected to the driving column (51). The driving column (51) remains relatively stationary with respect to the rotating rods (521) along the rotation direction of the rotating rods (521). A driving member (522) is connected to the rotating rod (521) and is used to rotate the rotating rod (521).

3. The integrated primary and secondary pole-mounted circuit breaker according to claim 2, characterized in that: A retaining spring (523) is fitted on the rotating rod (521). One end of the retaining spring (523) abuts against the driving column (51), and the other end abuts against the bottom wall of the inner cavity of the locking box (4).

4. The integrated primary and secondary pole-mounted circuit breaker according to claim 2, characterized in that: The drive unit (522) includes a plurality of external torsion discs (5221), and the external torsion discs (5221) are connected to the rotating rod (521) extending out of the outer extension of the locking box (4).

5. The integrated primary and secondary pole-mounted circuit breaker according to claim 4, characterized in that: It also includes a limiting pin (524), and the external twisting disk (5221) has through holes. After the external twisting disk (5221) rotates, multiple through holes can be made to be in a coaxial state. The limiting pin (524) is set through multiple through holes in a coaxial state.

6. The integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: Both the locking box (4) and the locking bar (3) are embedded with multiple magnetic blocks (7), and the magnetic blocks (7) located on the locking bar (3) can be magnetically attracted and fixed to the magnetic blocks (7) located on the locking box (4) after the locking bar (3) is rotated.

7. The integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: The top wall of the locking box (4) is bent downward to form a waterproof arc surface (8), and the circuit breaker body (1) has an arc-shaped surface that is adapted to the waterproof arc surface (8).

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