A primary and secondary fused pole-mounted circuit breaker with high stability

Abstract

The application relates to a primary and secondary fusion overhead circuit breaker with high stability, and relates to the technical field of power equipment, which comprises a wire pole, a first hoop is detachably installed on the upper side of the wire pole through bolts, a fixing frame is fixed on one side of the first hoop, and a circuit breaker body is detachably installed on the upper end of the fixing frame through bolts; a through hole is formed in the middle of the fixing frame, and sliding grooves are formed on the two sides of the fixing frame; and a through groove is formed on one side of one of the sliding grooves. When the circuit breaker body is lowered by hoisting, the fixed blocks are extruded, on the one hand, automatic alignment of the mounting hole positions is realized, the convenience of use of the primary and secondary fusion overhead circuit breaker is improved, on the other hand, automatic preliminary fixing of the circuit breaker is realized, the stability of use of the primary and secondary fusion overhead circuit breaker is improved, and on the other hand, automatic adjustment is realized, the support reliability of the primary and secondary fusion overhead circuit breaker is improved.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, specifically to a highly stable primary and secondary integrated pole-mounted circuit breaker. Background Technology

[0002] Pole-mounted circuit breakers play a crucial role in power distribution networks, effectively controlling and protecting the lines to ensure the reliability and security of power supply. With the development of smart grids, integrated primary and secondary pole-mounted circuit breakers are gradually becoming key equipment in distribution networks, combining traditional primary and secondary equipment to achieve more precise monitoring and control of the distribution network.

[0003] The existing installation process for integrated primary and secondary pole-mounted circuit breakers has significant drawbacks in terms of convenience: First, the circuit breaker must be hoisted and placed stably in the pre-set position on the bracket. Then, workers must manually align the circuit breaker with the mounting holes on the bracket at height. This process not only relies on repeated manual adjustments and calibrations, consuming a significant amount of time working at height, but is also susceptible to limitations in operating space at height and human visual errors, making it difficult to guarantee the accuracy of hole alignment and easily leading to deviations requiring secondary adjustments. This manual alignment method cannot meet the needs of automated installation, increasing the labor intensity and safety risks for workers, significantly reducing overall installation efficiency, and severely restricting the convenience of installing integrated primary and secondary pole-mounted circuit breakers, thus resulting in insufficient ease of use for these devices.

[0004] Therefore, it is necessary to invent a highly stable primary and secondary integrated pole-mounted circuit breaker to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a highly stable primary and secondary integrated pole-mounted circuit breaker to solve the problems mentioned in the background art.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a high-stability primary and secondary integrated pole-mounted circuit breaker, comprising a pole, wherein a first clamp is detachably installed on the upper side of the pole by bolts, a fixing frame is fixed on one side of the first clamp, and a circuit breaker body is detachably installed on the upper end of the fixing frame by bolts.

[0007] The fixing frame has a through hole in the middle and sliding grooves on both sides. One of the sliding grooves has a through groove on one side and a stabilizing groove at the other end. The stabilizing groove has a limit groove in the middle. The inner wall of the through hole is provided with a connecting structure, and two limit frames are provided on the connecting structure. The connecting structure can move the two limit frames in opposite directions along the length of the two sliding grooves to automatically align the installation holes of the circuit breaker body when it is hoisted and placed slowly.

[0008] Preferably, the connecting structure includes a sliding plate, a fixing block is fixed at the upper end of the sliding plate, a spring is fixed at the lower end of the fixing block, a first groove is provided on the lower side of the sliding plate, a fixing rod is fixed at the lower end of the first groove, connecting frames are rotatably connected to the outer surfaces of both sides of the fixing rod, a limit frame is rotatably connected to the other end of each of the two connecting frames, and a second groove is provided on the lower side of each of the two limit frames.

[0009] Preferably, the outer surface of the slide plate is slidably connected to the inner wall of the through hole, the upper end of the slide plate is fixed to the middle of the lower end of the fixing block, the upper surface of the fixing block is in contact with the lower surface of the circuit breaker body, the lower side of the fixing block is fixed to the upper end of the spring, the lower end of the spring is fixed to the middle of the upper side of the fixing frame, the first groove is formed in the middle of the lower side of the slide plate, and the middle part of the fixing rod is fixed to the middle of the lower end of the slide plate.

[0010] Preferably, the two connecting frames are rotatably connected at their proximal ends to the outer surfaces of both sides of the fixed rod, and the two connecting frames are rotatably connected at their disjoint ends to the lower ends of the two limiting frames. The outer surfaces of the two limiting frames are slidably connected to the inner walls of the two sliding grooves. The vertical cross-section of each limiting frame is cross-shaped. The proximal outer surfaces of the two limiting frames are in contact with the outer surfaces of both sides of the circuit breaker body.

[0011] Preferably, each end of the fixed rod is fixed with a connecting rod, each end of the two connecting rods is rotatably connected with a bracket, each bracket has a guide groove on one side at an angle, each guide groove has a guide rod slidably connected to its inner wall, and each guide rod has a support block fixed at both ends.

[0012] Preferably, the two connecting rods are fixed at the middle of the two fixed rods at both ends, and the two connecting rods are rotatably connected to the lower ends of the four card holders. The four card holders are arranged opposite each other, and the vertical cross-section of each card holder is L-shaped.

[0013] Preferably, each of the guide grooves is formed on the lower side of each card holder, the outer surface of each guide rod is slidably connected to the inner wall of each guide groove, both ends of each guide rod are fixed to one end of each support block, and the four support blocks are fixed at their proximal ends to both sides of the fixing frame.

[0014] Preferably, a connecting block is fixed to the middle of one side of one of the limiting frames, a pushing frame is fixed to the other end of the connecting block, a support rod is provided on the outer surface of the pushing frame, a connecting frame is fixed to both ends of the support rod, a third groove is provided at one end of the connecting frame, a support seat is rotatably connected to the other end of the connecting frame, a fourth groove is provided at one end of the support seat, and a second clamp is fixed to the other end of the support seat.

[0015] Preferably, one end of the connecting block is fixed to the middle of one of the limiting frames away from the power post, the other end of the connecting block is fixed to the middle of the pushing frame, the outer surface of the connecting block is slidably connected to the inner wall of the through groove, and the outer surface of the pushing frame is slidably connected to the inner wall of the limiting groove.

[0016] Preferably, the outer surface of the push frame is in contact with the outer surface of the support rod, the outer surface of the support rod is slidably connected to the inner wall of the stabilizing groove, the stabilizing groove passes through one side of the fixed frame, both ends of the support rod are fixed to one end of the connecting frame, the other end of the connecting frame is rotatably connected to one end of the support seat, the other end of the support seat is fixed to the middle of the second clamp, and the second clamp is detachably installed on the power pole below the first clamp by bolts.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) The present invention uses the pressure of the fixing block when the circuit breaker body is lowered by the hoisting to make the sliding plate, fixing block, spring, first groove, fixing rod, connecting frame, limit frame and second groove work together to achieve automatic alignment of the installation hole position. The entire process does not require repeated manual calibration and alignment, thereby significantly reducing the difficulty of high-altitude operation and improving the installation efficiency, thus improving the ease of use of the primary and secondary integrated pole-mounted circuit breaker.

[0019] (2) The present invention uses the compression of the fixing block when the circuit breaker body is lowered by the hoisting to make the connecting rod, the bracket, the guide groove, the guide rod and the support block work together to achieve the effect of automatic initial fixing of the circuit breaker. It forms a double fixing system with the bolts installed later, which effectively makes up for the defects of the single fixing method that is easy to loosen in the outdoor strong wind vibration, temperature alternation and rain erosion environment. It significantly enhances the firmness of the connection between the circuit breaker body and the fixing frame, thereby improving the stability of the primary and secondary integrated pole-mounted circuit breaker.

[0020] (3) The present invention uses the compression of the fixing block when the circuit breaker body is lowered by the hoisting to make the connecting block, the push frame, the support rod, the connecting frame, the third groove, the support seat, the fourth groove, and the second clamp work together to achieve the effect of automatic adjustment. There is no need for manual on-site measurement and repeated calibration, which effectively avoids the problems of angle deviation and inaccurate positioning that are easy to occur in manual adjustment. It significantly improves the matching accuracy of the support structure with the circuit breaker body and the pole, thereby improving the reliability of the primary and secondary integrated pole-mounted circuit breaker support. Attached Figure Description

[0021] Figure 1 This is an overall structural diagram of the present invention;

[0022] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0023] Figure 3For the present invention Figure 2 Enlarged view of the structure of section A in the middle;

[0024] Figure 4 This is a schematic diagram of the limiting frame structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the card holder structure of the present invention;

[0026] Figure 6 For the present invention Figure 5 Enlarged view of the structure of section A in the middle;

[0027] Figure 7 This is a cross-sectional view of the fixing frame of the present invention;

[0028] Figure 8 This is a partial structural diagram of the present invention.

[0029] In the diagram: 1. Utility post; 2. First clamp; 3. Fixing frame; 4. Circuit breaker body; 5. Through hole; 6. Slide groove; 7. Through groove; 8. Stabilizing groove; 9. Limiting groove; 10. Slide plate; 11. Fixing block; 12. Spring; 13. First groove; 14. Fixing rod; 15. Connecting frame; 16. Limiting frame; 17. Second groove; 18. Connecting rod; 19. Card holder; 20. Guide groove; 21. Guide rod; 22. Support block; 23. Connecting block; 24. Push frame; 25. Support rod; 26. Connecting frame; 27. Third groove; 28. Support base; 29. ​​Fourth groove; 30. Second clamp. Detailed Implementation

[0030] 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.

[0031] Example 1

[0032] This embodiment provides a highly stable primary and secondary integrated pole-mounted circuit breaker;

[0033] Please see Figure 1 - Figure 8As shown, the device includes a power pole 1, a first clamp 2 detachably mounted on the upper side of the power pole 1 via bolts, a fixing frame 3 fixed on one side of the first clamp 2, and a circuit breaker body 4 detachably mounted on the upper end of the fixing frame 3 via bolts; a through hole 5 is provided in the middle of the fixing frame 3, and sliding grooves 6 are provided on both sides of the fixing frame 3, one of the sliding grooves 6 has a through groove 7 on one side, and a stabilizing groove 8 is provided at the other end of the through groove 7, and a limiting groove 9 is provided in the middle of the stabilizing groove 8; a connecting structure is provided on the inner wall of the through hole 5, the connecting structure includes a sliding plate 10, a fixing block 11 is fixed at the upper end of the sliding plate 10, a spring 12 is fixed at the lower end of the fixing block 11, a first groove 13 is provided on the lower side of the sliding plate 10, a fixing rod 14 is fixed at the lower end of the first groove 13, connecting frames 15 are rotatably connected to the outer surfaces of both sides of the fixing rod 14, and limiting frames 16 are rotatably connected to the other ends of both connecting frames 15, and second grooves 17 are provided on the lower sides of both limiting frames 16.

[0034] Please refer to it again. Figure 1 - Figure 8 As shown, the outer surface of the slide plate 10 is slidably connected to the inner wall of the through hole 5. The upper end of the slide plate 10 is fixed to the middle of the lower end of the fixing block 11. The upper surface of the fixing block 11 is in contact with the lower surface of the circuit breaker body 4. The lower side of the fixing block 11 is fixed to the upper end of the spring 12. The lower end of the spring 12 is fixed to the middle of the upper side of the fixing frame 3. The first groove 13 is opened in the middle of the lower side of the slide plate 10. The middle part of the fixing rod 14 is fixed to the middle of the lower end of the slide plate 10. The two connecting frames 15 are rotatably connected to the outer surfaces of the two sides of the fixing rod 14 at their near ends. The two connecting frames 15 are rotatably connected to the lower ends of the two limiting frames 16 at their far ends. The outer surfaces of the two limiting frames 16 are slidably connected to the inner walls of the two sliding grooves 6. The vertical cross-section of each limiting frame 16 is cross-shaped. The outer surfaces of the two limiting frames 16 are in contact with the outer surfaces of the two sides of the circuit breaker body 4.

[0035] The specific implementation process is as follows: When the circuit breaker body 4 is lowered by hoisting, it presses against the fixing block 11. Under the stable support provided by the fixing frame 3, the spring 12, which is fixedly connected to the lower end of the fixing block 11, is gradually compressed by axial pressure. As the compression increases, the spring 12 continues to accumulate elastic potential energy and generate a reverse elastic force to support it, providing a power basis for the subsequent component reset. At the same time, the sliding plate 10, which is fixedly connected to the middle of the lower end of the fixing block 11, moves smoothly and without deviation in the vertical direction under the precise limiting guidance of the through hole 5 opened in the middle of the fixing frame 3. The steadily moving sliding plate 10 is synchronously driven by the fixing rod 14 fixedly connected to its lower end. The two connecting frames 15, which are rotatably connected to the outer surfaces of the two sides of the fixing rod 14, are flipped and swung under the traction of the fixing rod 14. This causes the two limiting frames 16, which are rotatably connected to the other ends of the two connecting frames 15, to move smoothly closer to each other along the direction of the sliding groove 6 under the limiting constraint of the two sliding grooves 6 opened on both sides of the fixing frame 3. The first groove 13 at the lower end of the slide plate 10 and the second groove 17 at the lower end of the two limit frames 16 provide sufficient redundancy space for the flipping action of the two connecting frames 15, effectively avoiding interference with other components when the connecting frames 15 flip.

[0036] As the hoisted circuit breaker body 4 is gradually lowered and approaches the fixing frame 3, during this process, two continuously approaching limit frames 16 will simultaneously and smoothly push the contacting circuit breaker body 4, forcing the circuit breaker body 4 to move horizontally to the center area of ​​the fixing frame 3, achieving automatic alignment of the installation hole positions. The entire process does not require repeated manual calibration and alignment, thus significantly reducing the difficulty of high-altitude operations, improving installation efficiency, and enhancing the ease of use of the primary and secondary integrated pole-mounted circuit breaker.

[0037] Example 2

[0038] Existing primary and secondary integrated pole-mounted circuit breakers mostly rely on single bolt fixing for installation. However, factors such as strong wind vibration, temperature fluctuations, and rain erosion in outdoor environments can easily lead to bolt fatigue and loosening. Therefore, it is necessary to optimize the fixing structure and make up for the shortcomings of single bolt fixing through multiple fixing designs, further enhance the robustness of the circuit breaker after installation, and ensure its long-term stable operation in complex outdoor environments.

[0039] Please see Figure 1 - Figure 8 As shown, an automatic preliminary fixing function for the circuit breaker has been added based on Embodiment 1;

[0040] Please refer to it again. Figure 1 - Figure 8As shown, both ends of the fixed rod 14 are fixed with connecting rods 18, and both ends of the two connecting rods 18 are rotatably connected with brackets 19. One side of each bracket 19 is inclined with a guide groove 20, and the inner wall of each guide groove 20 is slidably connected with a guide rod 21. Each guide rod 21 is fixed with a support block 22 at both ends. The middle of the two connecting rods 18 is fixed to both ends of the two fixed rods 14, and the two ends of the two connecting rods 18 are rotatably connected to the lower ends of the four brackets 19. The four brackets 19 are arranged opposite each other, and the vertical cross-section of each bracket 19 is L-shaped. Each guide groove 20 is opened on the lower side of each bracket 19. The outer surface of each guide rod 21 is slidably connected to the inner wall of each guide groove 20. Both ends of each guide rod 21 are fixed to one end of each support block 22, and the near ends of the four support blocks 22 are fixed to both sides of the fixed frame 3.

[0041] The specific implementation process is as follows: When the circuit breaker body 4 is lowered by hoisting, it compresses the fixing block 11, causing the spring 12 fixed to the lower end of the fixing block 11 to be gradually compressed under the stable support of the fixing frame 3. As the compression stroke progresses, the spring 12 continuously accumulates elastic potential energy and generates stable elastic force support, providing reliable power for the subsequent component reset. At the same time, the sliding plate 10 fixed to the middle of the lower end of the fixing block 11, under the precise limiting constraint of the through hole 5 opened in the middle of the fixing frame 3, moves smoothly and without deviation in the vertical direction. The steadily moving sliding plate 10, through the fixing rod 14 fixed at its lower end, synchronously drives the two connecting rods 18 fixed at both ends of the fixing rod 14 to move vertically downward together with it. The two moving connecting rods 18 provide stable downward force for the four brackets 19 rotatably connected to their two ends.

[0042] The four brackets 19 that receive the downward force are supported by guide rods 21 that are slidably connected to the inner wall of the guide grooves 20, which are inclined on one side. The two ends of the guide rods 21 are fixed to one end of the support block 22, while the other end of the support block 22 is fixed to one side of the fixing frame 3. This makes the four guide rods 21 and the four guide grooves 20 form a stable guiding transmission structure. Under the downward pull of the connecting rod 18, the four brackets 19 are driven to rotate synchronously in the direction of mutual approach. When the circuit breaker body 4 is lowered to the preset installation position of the fixing frame 3 and placed in place, the four brackets 19 with the vertical cross-section set in an L shape are precisely locked on the upper edge of the circuit breaker body 4, realizing the automatic initial fixing effect of the circuit breaker. Together with the bolts installed later, they form a double fixing system, which effectively makes up for the defects of single fixing method in outdoor strong wind vibration, temperature change, and rain erosion environment. It significantly enhances the firmness of the connection between the circuit breaker body 4 and the fixing frame 3, thereby improving the stability of the primary and secondary integrated pole-mounted circuit breaker.

[0043] Example 3

[0044] The existing designs of supports for integrated primary and secondary pole-mounted circuit breakers and their associated diagonal braces have significant limitations: either they employ fixed-angle structures, adapting only to a single circuit breaker model or standard installation scenarios, leading to uneven stress distribution when facing equipment of varying weights or complex outdoor loads, resulting in severely insufficient flexibility; or they rely on manual angle adjustment, which not only increases the difficulty and time required for high-altitude operations but is also prone to deviations due to visual errors and differences in operator proficiency, causing a mismatch between the brace support point and the circuit breaker's center of gravity, thus failing to achieve optimal stress distribution. Therefore, an automatic adjustment mechanism for the diagonal brace position and angle needs to be designed, allowing the brace to accurately adapt to the circuit breaker's center of gravity and scenario requirements after installation and positioning, fundamentally avoiding the limitations of fixed-angle adaptation and the errors of manual adjustment, thereby improving the reliability of the integrated primary and secondary pole-mounted circuit breaker support.

[0045] Please see Figure 1 - Figure 8 As shown, an automatic adjustment function has been added based on Embodiment 1;

[0046] Please refer to it again. Figure 1 - Figure 8 As shown, a connecting block 23 is fixed to the middle of one side of one of the limiting frames 16, and a pushing frame 24 is fixed to the other end of the connecting block 23. A support rod 25 is provided on the outer surface of the pushing frame 24, and a connecting frame 26 is fixed to both ends of the support rod 25. A third groove 27 is provided at one end of the connecting frame 26, and a support seat 28 is rotatably connected to the other end of the connecting frame 26. A fourth groove 29 is provided at one end of the support seat 28, and a second clamp 30 is fixed to the other end of the support seat 28. One end of the connecting block 23 is fixed to the middle of one of the limiting frames 16 away from the electric pole 1, and the other end of the connecting block 23 is fixed to the pushing frame. In the middle of 24, the outer surface of the connecting block 23 is slidably connected to the inner wall of the through groove 7, the outer surface of the push frame 24 is slidably connected to the inner wall of the limiting groove 9, the outer surface of the push frame 24 is in contact with the outer surface of the support rod 25, the outer surface of the support rod 25 is slidably connected to the inner wall of the stabilizing groove 8, the stabilizing groove 8 passes through one side of the fixed frame 3, both ends of the support rod 25 are fixed to one end of the connecting frame 26, the other end of the connecting frame 26 is rotatably connected to one end of the support seat 28, the other end of the support seat 28 is fixed to the middle of the second clamp 30, the second clamp 30 is detachably installed on the electric post 1 below the first clamp 2 by bolts.

[0047] The specific implementation process is as follows: When the circuit breaker body 4 is lowered by hoisting, it presses against the fixing block 11. Under the driving force of the fixing block 11, the sliding plate 10 fixed to it drives the two connecting frames 15 to move synchronously, thereby pulling the two limiting frames 16 to move smoothly towards each other under the precise limiting of the sliding grooves 6 on both sides of the fixing frame 3. Among them, the limiting frame 16 located on the side away from the pole 1 synchronously drives the connecting block 23 fixedly connected in its middle to slide smoothly on the inner wall of the through groove 7 preset in the fixing frame 3; the sliding connecting block 23 further drives the push frame 24 fixedly connected at its other end to slide stably along the preset trajectory under the constraint and limitation of the limiting groove 9 opened in the fixing frame 3;

[0048] The sliding pusher 24 generates a continuous thrust on the support rod 25, which is slidably connected to the inner wall of the stabilizing groove 8 in the fixed frame 3, forcing the support rod 25 to adjust its position along the stabilizing groove 8. The position-adjusting support rod 25, through the connecting frame 26 rotatably connected at both ends, pulls the support seat 28 rotatably connected at the other end of the connecting frame 26 to simultaneously adjust its position and angle. During this process, the third groove 27 at one end of the connecting frame 26 provides ample space for the related structure located inside it, avoiding interference between components; while the fourth groove 29 on the support seat 28 provides redundant space for the rotation of the connecting frame 26, ensuring smooth and unobstructed rotation.

[0049] As the support base 28 adjusts its position, the second clamp 30, fixedly connected to its other end, simultaneously completes precise alignment and angle adaptation on the utility pole 1. Once aligned, tightening the fixing bolts of the second clamp 30 secures it firmly to the utility pole 1. Throughout the process, the angle and position of the support structure are automatically adjusted via mechanical linkage, eliminating the need for manual on-site measurement and repeated calibration. This effectively avoids problems such as angle deviation and inaccurate positioning that easily occur with manual adjustments, significantly improving the alignment accuracy between the support structure and the circuit breaker body 4 and the utility pole 1, thereby enhancing the reliability of the primary and secondary integrated pole-mounted circuit breaker support.

[0050] 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 highly stable primary and secondary integrated pole-mounted circuit breaker, comprising a pole (1), characterized in that: The first clamp (2) is detachably installed on the upper side of the pole (1) by bolts. A fixing frame (3) is fixed on one side of the first clamp (2). The circuit breaker body (4) is detachably installed on the upper end of the fixing frame (3) by bolts. The fixing frame (3) has a through hole (5) in the middle and a sliding groove (6) on both sides. One of the sliding grooves (6) has a through groove (7) on one side and a stabilizing groove (8) at the other end. A limiting groove (9) is provided in the middle of the stabilizing groove (8). A connecting structure is provided on the inner wall of the through hole (5). Two limiting frames (16) are provided on the connecting structure. The connecting structure can move the two limiting frames (16) in opposite directions along the length of the two sliding grooves (6) to automatically align the installation holes of the circuit breaker body (4) that is being hoisted and placed slowly.

2. The high-stability primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The connecting structure includes a sliding plate (10), a fixing block (11) is fixed at the upper end of the sliding plate (10), a spring (12) is fixed at the lower end of the fixing block (11), a first groove (13) is provided on the lower side of the sliding plate (10), a fixing rod (14) is fixed at the lower end of the first groove (13), a connecting frame (15) is rotatably connected to both outer surfaces of the fixing rod (14), a limit frame (16) is rotatably connected to the other end of the two connecting frames (15), and a second groove (17) is provided on the lower side of the two limit frames (16).

3. The high-stability primary and secondary integrated pole-mounted circuit breaker according to claim 2, characterized in that: The outer surface of the slide plate (10) is slidably connected to the inner wall of the through hole (5). The upper end of the slide plate (10) is fixed to the middle of the lower end of the fixing block (11). The upper surface of the fixing block (11) is in contact with the lower surface of the circuit breaker body (4). The lower side of the fixing block (11) is fixed to the upper end of the spring (12). The lower end of the spring (12) is fixed to the middle of the upper side of the fixing frame (3). The first groove (13) is opened in the middle of the lower side of the slide plate (10). The middle part of the fixing rod (14) is fixed to the middle of the lower end of the slide plate (10).

4. A high-stability primary and secondary integrated pole-mounted circuit breaker according to claim 2, characterized in that: The two connecting frames (15) are rotatably connected at their near ends to the outer surfaces of the two fixed rods (14), and the two connecting frames (15) are rotatably connected at their far ends to the lower ends of the two limiting frames (16). The outer surfaces of the two limiting frames (16) are slidably connected to the inner walls of the two sliding grooves (6). The vertical cross-section of each limiting frame (16) is cross-shaped. The outer surfaces of the two limiting frames (16) at their near ends are in contact with the outer surfaces of the two sides of the circuit breaker body (4).

5. A highly stable primary and secondary integrated pole-mounted circuit breaker according to claim 2, characterized in that: Both ends of the fixed rod (14) are fixed with connecting rods (18), and both ends of the two connecting rods (18) are rotatably connected with brackets (19). One side of each bracket (19) is inclined with a guide groove (20), and the inner wall of each guide groove (20) is slidably connected with a guide rod (21). Both ends of each guide rod (21) are fixed with a support block (22).

6. A high-stability primary and secondary integrated pole-mounted circuit breaker according to claim 5, characterized in that: The two connecting rods (18) are fixed at the two ends of the two fixed rods (14) in the middle. The two ends of the two connecting rods (18) are rotatably connected to the lower ends of the four card holders (19). The four card holders (19) are arranged opposite to each other, and the vertical section of each card holder (19) is L-shaped.

7. A high-stability primary and secondary integrated pole-mounted circuit breaker according to claim 5, characterized in that: Each of the guide grooves (20) is formed on the underside of each card holder (19), and the outer surface of each guide rod (21) is slidably connected to the inner wall of each guide groove (20). Both ends of each guide rod (21) are fixed to one end of each support block (22), and the four support blocks (22) are fixed at their proximal ends to both sides of the fixing frame (3).

8. A high-stability primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: One of the limiting frames (16) has a connecting block (23) fixed in the middle of one side, and a push frame (24) fixed at the other end of the connecting block (23). A support rod (25) is provided on the outer surface of the push frame (24). A connecting frame (26) is fixed at both ends of the support rod (25). A third groove (27) is provided at one end of the connecting frame (26). A support seat (28) is rotatably connected at the other end of the connecting frame (26). A fourth groove (29) is provided at one end of the support seat (28). A second clamp (30) is fixed at the other end of the support seat (28).

9. A highly stable primary and secondary integrated pole-mounted circuit breaker according to claim 8, characterized in that: One end of the connecting block (23) is fixed to the middle of one of the limiting frames (16) away from the electric pole (1), and the other end of the connecting block (23) is fixed to the middle of the push frame (24). The outer surface of the connecting block (23) is slidably connected to the inner wall of the through groove (7), and the outer surface of the push frame (24) is slidably connected to the inner wall of the limiting groove (9).

10. A highly stable primary and secondary integrated pole-mounted circuit breaker according to claim 8, characterized in that: The outer surface of the push frame (24) is in contact with the outer surface of the support rod (25). The outer surface of the support rod (25) is slidably connected to the inner wall of the stabilizing groove (8). The stabilizing groove (8) passes through one side of the fixed frame (3). Both ends of the support rod (25) are fixed to one end of the connecting frame (26). The other end of the connecting frame (26) is rotatably connected to one end of the support seat (28). The other end of the support seat (28) is fixed to the middle of the second clamp (30). The second clamp (30) is detachably installed on the electric pole (1) below the first clamp (2) by bolts.

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