A primary and secondary integrated pole-mounted circuit breaker

Abstract

This invention relates to the field of line protection equipment technology, specifically a primary and secondary integrated pole-mounted circuit breaker, comprising a circuit breaker body with a hoisting limiting mechanism. A secondary system is embedded within the circuit breaker body. The hoisting limiting mechanism includes a vibration isolation mechanism and a one-way locking mechanism. When the vibration isolation pad ages and thins, creating gaps, the circuit breaker body slightly sinks due to gravity. Simultaneously, outdoor vibrations cause the outer support plate to move downwards. The inclined surfaces of the locking groove and the locking protrusion press against each other, generating a horizontal force that pushes the floating frame to stretch the support spring and cause it to float slightly. This allows the locking protrusion to pass the current tooth tip and engage with the next locking groove. This one-way progressive engagement process continuously eliminates gaps, ensuring the vibration isolation pad remains in an effective pre-compression state. Even if plastic deformation occurs during long-term operation, it can still continuously absorb vibration energy, preventing buffer failure and ensuring the long-term stability and reliability of the equipment.

Description

Technical Field

[0001] This invention belongs to the technical field of line protection equipment, specifically relating to a primary and secondary integrated pole-mounted circuit breaker. Background Technology

[0002] The integrated primary and secondary pole-mounted circuit breaker, as the core line protection equipment of the distribution network, mainly consists of the circuit breaker body, secondary system, installation and fixing mechanism and vibration isolation structure. It realizes fault current interruption through vacuum interruption chamber, and completes data acquisition and opening and closing control by relying on the instrument transformer and feeder terminal of the secondary system. It is widely used in the segmented protection of outdoor overhead lines, user boundary and other scenarios.

[0003] The installation and fixing of existing integrated primary and secondary pole-mounted circuit breakers mostly adopts bolt fastening. Multiple sets of bolts lock the circuit breaker body to the mounting base, and rubber vibration isolation pads are placed between them to buffer outdoor vibration impact. However, bolt fixing requires repeated calibration and tightening, the installation process is cumbersome and the construction efficiency is low. Moreover, long-term exposure to outdoor vibration can cause the bolts to loosen, leading to the risk of the circuit breaker body moving upward and falling off. In addition, the rubber vibration isolation pads are prone to aging and creep due to temperature changes and continuous compression during long-term use, resulting in thinning. Traditional fixing structures cannot compensate for this loss, which in turn creates gaps between the circuit breaker body and the mounting base. This causes the vibration isolation pads to lose their pre-compression state, the buffering function to fail, and vibration to be directly transmitted to internal precision components, causing problems such as poor contact of contacts and abnormal signal acquisition of current transformers, which seriously affects the operational stability and service life of the circuit breaker. Therefore, it is necessary to design an integrated primary and secondary pole-mounted circuit breaker. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and rationally designed integrated primary and secondary pole-mounted circuit breaker to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A primary and secondary integrated pole-mounted circuit breaker includes a circuit breaker body, a lifting and limiting mechanism on the circuit breaker body, a secondary system embedded in the circuit breaker body, and a vibration isolation mechanism and a one-way locking mechanism on the lifting and limiting mechanism. The lifting and limiting mechanism includes a lifting ring fixed to the top of the circuit breaker body. The circuit breaker body is slidably connected between side supports, which are symmetrically fixed to mounting bases. The one-way locking mechanism includes a support platform evenly fixed to the mounting base. An inner support is fixedly installed on the top of the support platform. An oblique support is slidably connected in a through groove evenly opened on the side wall of the inner support. The oblique support is fixed to an inner support plate. Locking protrusions are evenly arranged on the side wall of the inner support plate, and the locking protrusions are connected to a downward locking mechanism. An interlocking drive mechanism is provided in the support platform.

[0007] As a further optimization of the present invention, the pressing and locking mechanism includes an upper support fixed in the bottom groove of the circuit breaker body, a floating frame slidably connected in the upper support, and support springs symmetrically arranged on the outer wall of the upper support. One end of the support spring is fixed to the connecting plate, and the support spring is sleeved on the floating frame. The connecting plate is fixedly connected to the floating frame.

[0008] As a further optimization of the present invention, the floating frame is provided with an outer support plate, which is located in the upper support, and a locking groove is evenly provided on one side of the outer support plate, and the locking protrusion can be disengaged and abutted in the locking groove.

[0009] As a further optimization of the present invention, the interlocking drive mechanism includes a lifting inclined platform, and inclined grooves are evenly provided on the side wall of the lifting inclined platform, with the inclined support slidably connected in the inclined grooves.

[0010] As a further optimization of the present invention, a limiting guide rail is provided on the inner wall of the inclined groove, and the limiting guide rail is slidably connected to the slide rail opened on the inclined support.

[0011] As a further optimization of the present invention, the bottom of the lifting inclined platform is rotatably connected to a threaded column, the threaded column is threadedly connected to the support platform, the bottom of the threaded column is provided with a square hole, a transmission block is slidably connected in the square hole, and the transmission block is fixedly connected to the top of the worm gear.

[0012] As a further optimization of the present invention, the bottom of the worm gear is rotatably connected to a rotating support, the rotating support is fixed on a mounting base, the bottom of the mounting base is provided with a closed shell, a locking worm is rotatably connected to the closed shell, and the locking worm is connected to the worm gear.

[0013] As a further optimization of the present invention, the vibration isolation mechanism includes a mounting platform fixed on the mounting base, the mounting platform being inserted into a groove opened on the top of the vibration isolation pad, and the bottom and top of the vibration isolation pad respectively abutting against the mounting base and the circuit breaker body.

[0014] As a further optimization of the present invention, a trapezoidal block is provided on the side of the side support near the circuit breaker body. The trapezoidal block is slidably connected in the docking slot, and the docking slot is symmetrically opened on the outer walls of both sides of the circuit breaker body.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention utilizes the trapezoidal block on the inner side of the side support to form a sliding fit with the mating slots on both sides of the circuit breaker body. The gradually widening structure of the trapezoidal block automatically corrects its deviation during hoisting and descent, limiting the horizontal displacement of the circuit breaker body and ensuring stable placement only in the vertical direction, significantly improving installation and positioning accuracy. After placement, the bottom of the vibration isolation pad in the vibration isolation mechanism abuts against the mounting base, and the top fits against the circuit breaker body, forming an elastic support. During outdoor operation, it absorbs vibration energy through its own compression and rebound, reducing the impact force caused by environmental vibration, preventing vibration from being transmitted to precision components such as the vacuum interrupter, permanent magnet mechanism, and secondary system, preventing component loosening, poor contact, or abnormal signal acquisition, and extending the service life of the equipment.

[0017] 2. During installation, this invention requires only a single tightening of the locking worm gear on the sealed shell. This drives the lifting platform upward via the worm wheel and threaded column. Utilizing the inclined groove and the inclined surface of the inclined support, the inner support plate expands outward, causing the triangular locking protrusion to embed into the locking groove of the outer support plate, forming an initial interlock. Relying on the reverse self-locking characteristic of the worm wheel and worm gear transmission, the threaded column cannot rotate in the opposite direction, ensuring that the inner support plate does not retract on its own. Simultaneously, the horizontal bottom surface of the locking protrusion and the horizontal top surface of the locking groove are rigidly fitted together, forming a strong barrier when the circuit breaker is subjected to upward vibration or a tendency to fall off, effectively preventing it from moving upward and falling off. The entire process does not require repeated tightening of bolts and can be completed by a single person in a single operation, greatly simplifying the installation process and improving construction efficiency.

[0018] 3. When the vibration isolation pad ages and thins, creating gaps, the circuit breaker body experiences a slight sinking due to gravity. Outdoor vibrations cause the outer support plate to move downwards. The inclined surfaces of the locking groove and the locking protrusion press against each other, generating a horizontal component force. This pushes the floating frame to stretch the support spring and cause it to float slightly, allowing the locking protrusion to pass the current tooth tip and engage with the next locking groove. This unidirectional progressive engagement process can continuously eliminate gaps, ensuring that the vibration isolation pad is always in an effective pre-compression state. Even if plastic deformation occurs during long-term operation, it can still continuously absorb vibration energy, avoid buffer failure, and ensure the stability and reliability of the equipment during long-term operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram showing the position of the interlock drive mechanism in this invention;

[0021] Figure 3 This is a schematic diagram of the hoisting and limiting mechanism in this invention;

[0022] Figure 4 This is a schematic diagram of the installation position of the rotating support in this invention;

[0023] Figure 5 yes Figure 4 A magnified view of a portion of region A in the middle;

[0024] Figure 6 This is a schematic diagram showing the position of the upper support in this invention;

[0025] Figure 7 This is a schematic diagram of the vibration isolation mechanism in this invention;

[0026] Figure 8 This is a schematic diagram of the one-way locking mechanism in this invention;

[0027] Figure 9 This is a schematic diagram of the floating frame structure in this invention;

[0028] Figure 10 This is an exploded view of the interlock drive mechanism in this invention;

[0029] Figure 11 This is a schematic diagram showing the correspondence between the locking protrusion and the locking groove in this invention;

[0030] Figure 12 This is a schematic diagram of the position of the limiting guide rail in this invention.

[0031] In the diagram: 1. Circuit breaker body; 2. Lifting limit mechanism; 3. Vibration isolation mechanism; 4. One-way locking mechanism; 21. Lifting ring; 22. Side support; 23. Trapezoidal block; 24. Connecting slot; 25. Mounting base; 31. Mounting platform; 32. Vibration isolation pad; 41. Support platform; 42. Inner support; 43. Locking protrusion; 44. Interlocking drive mechanism; 45. Downward locking mechanism; 46. Inner support plate; 47. Locking worm gear; 48. Diagonal support; 441. Lifting inclined platform; 442. Diagonal groove; 443. Limiting guide rail; 444. Threaded column; 445. Transmission block; 446. Worm gear; 447. Rotating support; 448. Enclosed shell; 451. Upper support; 452. Floating frame; 453. Support spring; 454. Connecting plate; 455. Outer support plate; 456. Locking groove. Detailed Implementation

[0032] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] Example: Please refer to Figure 1-12A primary and secondary integrated pole-mounted circuit breaker includes a circuit breaker body 1, a hoisting and limiting mechanism 2 on the circuit breaker body 1, a secondary system embedded in the circuit breaker body 1, a vacuum interrupter embedded in the upper part of the circuit breaker body 1, and a mechanism box in the lower part of the circuit breaker body 1 containing a permanent magnet mechanism responsible for opening and closing the circuit breaker. The secondary system mainly includes a current transformer, a voltage transformer, and a feeder terminal. The secondary system is connected to the lines in the circuit breaker body 1 through a fusion interface. The feeder terminal, in conjunction with the data from the current transformer, controls the opening and closing actions of the circuit breaker. The circuit breaker body 1 and the secondary system are existing technologies and will not be described in detail here. The hoisting limiting mechanism 2 is equipped with a vibration isolation mechanism 3 and a one-way locking mechanism 4. The vibration isolation mechanism 3 is used to buffer the vibrations received by the circuit breaker body 1. The hoisting limiting mechanism 2 includes a hoisting ring 21 fixed to the top of the circuit breaker body 1. The circuit breaker body 1 is slidably connected between side supports 22. The side supports 22 are symmetrically fixed on the mounting base 25. A trapezoidal block 23 is provided on the side of the side support 22 near the circuit breaker body 1. The trapezoidal block 23 is slidably connected in the mating slots 24 opened on both sides of the circuit breaker body 1. During the installation of the circuit breaker, the hoisting equipment is connected through the hoisting ring 21. The hoisting ring 21 provides a stable hoisting force point to ensure that the circuit breaker body 1 is stable during hoisting. Maintaining balance during the process and avoiding tilting or collision, after hoisting, the circuit breaker body 1 is lifted above the mounting base 25, aligning the docking slots 24 on both sides of the circuit breaker body 1 with the trapezoidal blocks 23 inside the side supports 22. The trapezoidal blocks 23 have a trapezoidal structure, and through the guiding effect of the gradually widening trapezoid, they automatically correct their deviation during the descent of the circuit breaker body 1, ensuring that the docking slots 24 and the trapezoidal blocks 23 are accurately docked. The circuit breaker body 1 slowly slides down along the guide channel between the side supports 22, and the trapezoidal blocks 23 gradually insert into the docking slots 24 and form a sliding fit, restricting the horizontal displacement of the circuit breaker body 1, so that it can only move in the vertical direction, ensuring the stability of the installation process.

[0034] Please see Figure 2 and Figure 7The vibration isolation mechanism 3 includes a mounting platform 31 with its bottom fixed on the mounting base 25. The mounting platform 31 is inserted into a groove on the top of the vibration isolation pad 32, restricting the upward movement of the vibration isolation pad 32. The bottom and top of the vibration isolation pad 32 abut against the mounting base 25 and the circuit breaker body 1, respectively. The mounting base 25 provides the mounting base plate for the circuit breaker, which can support the circuit breaker body 1 in the designated installation position. The vibration isolation pad 32 is made of composite rubber. Its bottom is in close contact with the mounting base 25, and its top is in close contact with the bottom of the circuit breaker body 1. When the outdoor environment vibrates, the vibration isolation pad 32 absorbs the vibration energy through its own compression and rebound, reduces the vibration impact force, and prevents the vibration from being transmitted to precision components such as the vacuum interrupter, permanent magnet mechanism, and secondary system. This prevents the components from experiencing problems such as loose bolts, poor contact of contacts, and abnormal signal acquisition of transformers due to long-term vibration, thereby extending the service life of the equipment and improving operational reliability. When installing the circuit breaker body 1, the mating slot 24 first limits the trapezoidal block 23. As the circuit breaker body 1 continues to slide down, its bottom gradually contacts the top of the vibration isolation pad 32. The vibration isolation pad 32 is slowly compressed under the gravity of the circuit breaker body 1, forming a pre-tightened state, which provides a basis for vibration buffering during subsequent operation. During subsequent operation, when the equipment is subjected to outdoor vibration, the vibration causes the vibration isolation pad 32 to deform, which will be transmitted to the one-way locking mechanism 4 through the circuit breaker body 1, so that it engages in a one-way progressive manner with the vibration amplitude, further enhancing the connection strength between the circuit breaker body 1 and the mounting base 25. When the vibration isolation pad 32 becomes thin due to aging, and a gap is generated between the circuit breaker body 1 and the mounting base 25, the one-way progressive engagement process of the one-way locking mechanism 4 will adaptively compensate for the deformation of the vibration isolation pad 32, ensuring that the vibration isolation pad 32 is always in a pre-compressed state and continuously and effectively absorbs vibration energy.

[0035] Please see Figure 2 and Figure 4-12The one-way locking mechanism 4 includes a support platform 41 evenly fixed on the mounting base 25. An inner support 42 is fixedly installed at the top center of the support platform 41. An inclined support 48 is slidably connected in a through groove evenly opened on the side wall of the inner support 42. The inclined support 48 is fixed on an inner support plate 46. The inner support plate 46 is circumferentially distributed outside the inner support 42. Evenly distributed locking protrusions 43 are opened on the side wall of the inner support plate 46. The locking protrusions 43 have a triangular structure. The bottom surface of the locking protrusions 43 is a horizontal plane, and the top surface of the locking protrusions 43 is an inclined plane. An interlocking drive mechanism 44 is provided in the support platform 41. The interlocking drive mechanism 44 includes a lifting inclined platform 441 slidably connected in the inner support 42. An inclined groove 442 is evenly opened on the side wall of the lifting inclined platform 441. The inclined support 48 is slidably connected in the inclined groove 442. A limiting guide rail 443 is provided on the inner wall of the groove 442. The limiting guide rail 443 is slidably connected to the slide rail opened in the inclined support 48. The limiting guide rail 443 limits the inclined support 48, so that the inclined support 48 can only slide along the inclined surface of the inclined groove 442. The bottom of the lifting inclined platform 441 is rotatably connected to the threaded column 444 through the bearing. The threaded column 444 is threadedly connected to the support platform 41. A transmission block 445 is slidably connected in the square hole opened in the bottom of the threaded column 444. The transmission block 445 is fixedly connected to the top of the worm gear 446. The bottom of the worm gear 446 is rotatably connected to the rotating support 447. The rotating support 447 is fixed on the mounting base 25. The bottom of the mounting base 25 is provided with a closed shell 448. A locking worm 47 is rotatably connected to the closed shell 448 through the bearing. The locking worm 47 is connected to the worm gear 446.

[0036] Please see Figure 8-12The circuit breaker body 1 has a pressing locking mechanism 45 at its bottom. The pressing locking mechanism 45 includes an upper support 451 fixed in a groove at the bottom of the circuit breaker body 1. The upper support 451 is a polygonal frame structure. A floating frame 452 is slidably connected in the upper support 451. Support springs 453 are symmetrically arranged on the outer wall of the upper support 451. One end of the support spring 453 is fixed to a connecting plate 454, and the support spring 453 is sleeved on the floating frame 452. The connecting plate 454 is fixedly connected to the floating frame 452 by screws. An outer support plate is provided on the floating frame 452. 455, the outer support plate 455 is located inside the frame of the upper support 451, and a locking groove 456 corresponding to the locking protrusion 43 is evenly opened on one side of the outer support plate 455. The locking groove 456 is also a triangular structure. The top surface of the locking groove 456 is a horizontal plane, and the bottom surface of the locking groove 456 is an inclined surface that abuts against the locking protrusion 43. After the initial hoisting is completed, the circuit breaker body 1 is hoisted to the top of the mounting base 25 by the hoisting ring 21, and slides down along the guide of the trapezoidal block 23 of the side support 22 and the docking groove 24, and finally falls onto the vibration isolation pad 32. At this time, the downward locking mechanism 45 follows. The circuit breaker body 1 falls synchronously. Since the inner support plate 46 is initially in the retracted position, the locking protrusion 43 and the locking groove 456 on the outer support plate 455 are disengaged and not engaged. At this time, the circuit breaker body 1 is only initially supported by the vibration isolation pad 32. When fixing is required, the locking worm gear 47 on the enclosed shell 448 is rotated. The locking worm gear 47 drives the meshing worm wheel 446 to rotate. The rotation of the worm wheel 446 is transmitted to the threaded column 444 through the transmission block 445, causing the threaded column 444 to rotate within the support platform 41. The rotation of the threaded column 444 drives the lifting and lowering of the inclined plane. The platform 441 moves upward along the axial direction. During the upward movement, the inclined platform 441 presses the inclined support 48 through the inclined surface of the inclined groove 442, causing the inclined support 48 to slide outward along the through groove of the inner support 42 and drive the inner support plate 46 to expand outward synchronously until the triangular locking protrusion 43 on the inner support plate 46 gradually approaches and is completely embedded in the corresponding locking groove 456 to form an initial interlock. Since the worm gear transmission has a reverse self-locking characteristic, the threaded column 444 cannot rotate in the reverse direction, thereby ensuring that the inner support plate 46 will not retract on its own, ensuring that the initial locking state is stable and reliable.During subsequent operation of the circuit breaker, when the equipment is subjected to outdoor environmental vibration or impact from conductor galloping, the vibration isolation pad 32 will undergo elastic deformation. The downward vibration component of the circuit breaker body 1 can cause the outer support plate 455 to move downward accordingly. During this process, the inclined surface of the locking groove 456 and the inclined surface of the locking protrusion 43 press against each other, generating a horizontal component force, which in turn pushes the floating frame 452 to stretch the support spring 453 and generate a slight float, allowing the outer support plate 455 to adaptively displace with the vibration. When the vibration amplitude is too large, the gap created by the outward movement of the outer support plate 455 allows the locking protrusion 43 to pass over the tooth top of the locking groove 456 and engage with the next locking groove 456. During this process, since the bottom surface of the locking protrusion 43 and the top surface of the locking groove 456 are both horizontal, when the circuit breaker body 1 is subjected to upward vibration or attempts to loosen, the horizontal mating surface forms a rigid barrier, effectively preventing the inner support plate 46 from retracting, thereby achieving a one-way locking effect and realizing a one-way progressive engagement effect.

[0037] It should be noted that, in the use of this type of integrated primary and secondary pole-mounted circuit breaker, the equipment is first hoisted to the mounting base 25 above the construction site using the hoisting ring 21 fixed to the top of the circuit breaker body 1. Then, the mating slots 24 on both sides of the circuit breaker body 1 are aligned with the trapezoidal blocks 23 on the inner side of the side supports 22. Using the gradually widening guide structure of the trapezoidal blocks 23, the circuit breaker body 1 slowly slides down along the channel between the side supports 22, achieving automatic correction and precise guidance. As the circuit breaker body 1 falls, its bottom gradually contacts and compresses the vibration isolation pad 32 until it is fully in place. At this time, the vibration isolation pad 32 is in a pre-compressed state, providing initial elastic support and buffer for the equipment. In the initial state, the inner support plate 46 in the one-way locking mechanism 4 is in the retracted position, and the locking protrusion 43 and the locking groove 456 on the outer support plate 455 are disengaged and do not form an engagement.

[0038] After the equipment is in place, the operator performs initial fixation by rotating the locking worm gear 47 on the closed shell 448. The locking worm gear 47 drives the worm wheel 446 to rotate. The transmission block 445 at the top of the worm wheel 446 drives the threaded column 444 to rotate in the support platform 41. The rotation of the threaded column 444 drives the lifting platform 441 to move upward along the axis. During the upward movement of the lifting platform 441, the inclined surface of the inclined groove 442 on its side wall presses against the inclined support 48. Under the guidance of the limit guide rail 443, the inclined support 48 slides outward along the through groove of the inner support 42, thereby driving the inner support plate 46 to expand outward synchronously. The triangular locking protrusion 43 on the inner support plate 46 gradually approaches and finally fully embeds into the corresponding locking groove 456 of the outer support plate 455. At this time, by utilizing the reverse self-locking characteristic of the worm gear transmission, the threaded column 444 cannot rotate in the reverse direction, ensuring that the inner support plate 46 will not retract on its own, thus completing the rigid interlock between the circuit breaker body 1 and the mounting base 25.

[0039] When the equipment is subjected to vibration and impact from the outdoor environment, the vibration isolation pad 32 undergoes elastic deformation to absorb energy. At the same time, the slight displacement of the circuit breaker body 1 is transmitted to the floating frame 452 through the upper support 451. When the circuit breaker body 1 is subjected to a downward vibration component, the outer support plate 455 moves down accordingly. At this time, the inclined surface of the locking groove 456 and the inclined surface of the locking protrusion 43 press against each other, generating a horizontal component force. This component force pushes the floating frame 452 to overcome the tension of the support spring 453 and generate a slight float, so that the locking protrusion 43 can pass over the tooth top of the current locking groove 456. Under the action of vibration energy release or the rebound force of the support spring 453, the locking protrusion 43 is engaged in the next locking groove 456, realizing a unidirectional progressive engagement process that becomes tighter with each vibration.

[0040] As operating time increases, if the vibration isolation pad 32 becomes thinner due to aging and creep, the circuit breaker body 1 will experience slight subsidence. At this time, the aforementioned unidirectional progressive engagement process will continue automatically, driving the inner support plate 46 to further expand and engage with deeper teeth, thereby automatically eliminating the gap caused by the thinning of the vibration isolation pad 32, ensuring that the vibration isolation pad 32 always maintains an effective pre-compression state and continues to play a buffering role. When the circuit breaker body 1 is subjected to upward vibration or attempts to loosen, the horizontal bottom surface of the locking protrusion 43 and the horizontal top surface of the locking groove 456 form a rigid contact, effectively preventing the inner support plate 46 from retracting and eliminating the risk of loosening.

[0041] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker, comprising a circuit breaker body (1), characterized in that: The circuit breaker body (1) is provided with a hoisting limiting mechanism (2), and a secondary system is embedded in the circuit breaker body (1). The hoisting limiting mechanism (2) is provided with a vibration isolation mechanism (3) and a one-way locking mechanism (4). The hoisting limiting mechanism (2) includes a hoisting ring (21) fixed to the top of the circuit breaker body (1). The circuit breaker body (1) is slidably connected between side supports (22), and the side supports (22) are symmetrically fixed on the mounting base (25). The one-way locking mechanism (4) includes... A support platform (41) is evenly fixed on the mounting base (25). An inner support (42) is fixedly installed on the top of the support platform (41). An inclined support (48) is slidably connected in a through groove evenly opened on the side wall of the inner support (42). The inclined support (48) is fixed on the inner support plate (46). Locking protrusions (43) are evenly provided on the side wall of the inner support plate (46). The locking protrusions (43) are connected to the pressing locking mechanism (45). An interlocking drive mechanism (44) is provided in the support platform (41). The pressing locking mechanism (45) includes an upper support (451) fixed in the bottom groove of the circuit breaker body (1), a floating frame (452) slidably connected in the upper support (451), and support springs (453) symmetrically arranged on the outer wall of the upper support (451). One end of the support spring (453) is fixed on the connecting plate (454), and the support spring (453) is sleeved on the floating frame (452). The connecting plate (454) is fixedly connected to the floating frame (452). An outer support plate (455) is provided on the floating frame (452). The outer support plate (455) is located in the upper support (451), and a locking groove (456) is evenly opened on one side of the outer support plate (455). The locking protrusion (43) can be disengaged and abuts in the locking groove (456). The interlock drive mechanism (44) includes a lifting inclined platform (441), and inclined grooves (442) are evenly provided on the side wall of the lifting inclined platform (441). An inclined support (48) is slidably connected in the inclined grooves (442). The vibration isolation mechanism (3) includes a mounting platform (31) fixed on the mounting base (25). The mounting platform (31) is inserted into a groove opened on the top of the vibration isolation pad (32). The bottom and top of the vibration isolation pad (32) abut against the mounting base (25) and the circuit breaker body (1), respectively.

2. The integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: The inner wall of the inclined groove (442) is provided with a limiting guide rail (443), which is slidably connected to the slide rail opened on the inclined support (48).

3. The integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: The bottom of the lifting platform (441) is rotatably connected to a threaded column (444), which is threaded onto the support platform (41). A square hole is provided at the bottom of the threaded column (444), and a transmission block (445) is slidably connected in the square hole. The transmission block (445) is fixedly connected to the top of the worm gear (446).

4. The integrated primary and secondary pole-mounted circuit breaker according to claim 3, characterized in that: The bottom of the worm wheel (446) is rotatably connected to the rotating support (447), which is fixed on the mounting base (25). The bottom of the mounting base (25) is provided with a closed shell (448), and a locking worm (47) is rotatably connected to the closed shell (448). The locking worm (47) is connected to the worm wheel (446).

5. A primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The side support (22) is provided with a trapezoidal block (23) on the side near the circuit breaker body (1). The trapezoidal block (23) is slidably connected in the docking slot (24). The docking slot (24) is symmetrically opened on the outer walls of both sides of the circuit breaker body (1).

Images