A primary and secondary fused integrated pole-mounted circuit breaker with improved opening response speed

Abstract

The application belongs to the technical field of power distribution equipment, and particularly relates to a primary and secondary fusion integrated column-mounted circuit breaker capable of improving tripping response speed, which comprises an operating box, insulating barrels and a tripping and closing driving assembly, each of the insulating barrels is provided with a static contact and a dynamic contact, and further comprises a lifting frame, an inclination detection mechanism, a damping adjusting mechanism and a triggering mechanism; the lifting frame is slidingly assembled on a sliding rail in the operating box, and a stress block is slidingly connected to the middle part of the lifting frame; the inclination detection mechanism comprises a pendulum assembly and a damping assembly; the damping adjusting mechanism is arranged on the operating box and is in transmission connection with the damping assembly, and is used for adjusting the damping resistance of the damping assembly; and the triggering mechanism is arranged in the operating box. The application can realize omnidirectional inclination detection, wind vibration resistance, anti-malfunction and force storage spring rapid tripping, and effectively improves the safety, reliability and response speed of the circuit breaker.

Description

Technical Field

[0001] This invention belongs to the field of power distribution equipment technology, specifically relating to a primary and secondary integrated pole-mounted circuit breaker that improves the tripping response speed. Background Technology

[0002] Integrated pole-mounted circuit breakers (POPs) combine primary and secondary components, deeply integrating the primary switch body, voltage / current transformers, feeder terminals (FTUs), and other secondary equipment. They are crucial for achieving distribution network automation. These circuit breakers are typically installed atop utility poles. When a pole tilts beyond its limits due to geological disasters, foundation subsidence, or external impacts, it can easily lead to serious accidents such as conductor breakage, equipment damage, or even pole collapse and wire breakage. In such situations, the circuit breaker must be able to trip promptly, cutting off power and preventing the accident from escalating.

[0003] In outdoor power distribution scenarios, when utility poles tilt due to typhoons, heavy rain, geological subsidence, or vehicle collisions, circuit breakers should have the ability to automatically disconnect the circuit to prevent pedestrians from being electrocuted when they approach the tilted utility poles.

[0004] Existing technologies include pole-mounted circuit breakers that automatically disconnect power when tilted using a counterweight slider (such as CN120933111B). The principle is that when the pole tilts in a specific direction, the counterweight slider slides along a limiting groove, driving the insulated threaded rod to rotate via a rack and pinion transmission, thereby separating the moving contact from the stationary contact to disconnect the power. However, this technical solution has the following shortcomings:

[0005] First, the triggering direction is singular. The counterweight slider can only slide in the extension direction of the limit groove. If the utility pole tilts perpendicular to the groove or in other directions, the counterweight slider cannot slide under force, and the tilt triggering component completely fails.

[0006] Secondly, the reciprocating swaying can lead to frequent malfunctions. In strong winds, utility poles may sway back and forth at high frequency, causing the counterweight slider to slide back and forth, resulting in the circuit breaker frequently performing a series of opening-closing-opening operations. This not only causes severe wear on mechanical parts but may also trigger arc reignition, posing a threat to equipment and power grid safety. Summary of the Invention

[0007] In view of this, the purpose of this invention is to propose a primary and secondary integrated pole-mounted circuit breaker that improves the tripping response speed, enabling omnidirectional tilt detection, wind vibration resistance and anti-maloperation, and rapid tripping via the accumulator spring, thereby effectively improving the safety, reliability and response speed of the circuit breaker.

[0008] The specific technical solution adopted by this invention is as follows:

[0009] A primary and secondary integrated pole-mounted circuit breaker with improved tripping response speed includes an operating box, several insulating cylinders fixedly installed on the top of the operating box, and a tripping and closing drive assembly installed inside the operating box. Each insulating cylinder is provided with a stationary contact and a moving contact. The circuit breaker also includes a lifting frame, a tilt detection mechanism, a damping adjustment mechanism, and a triggering mechanism.

[0010] The lifting frame is slidably mounted on the slide rail inside the control box, and the lifting frame is fixedly connected to each moving contact; a force-bearing block is slidably connected in the middle of the lifting frame, and the output end of the opening and closing drive component is driven to cooperate with the force-bearing block to drive the lifting frame and moving contacts to perform lifting and lowering movements through the opening and closing drive component, thereby realizing the opening and closing operation of the circuit breaker.

[0011] The tilt detection mechanism includes a pendulum assembly and a damping assembly. The pendulum assembly is located inside the control box, and the damping assembly is integrated on the pendulum assembly to provide damping resistance for the swing of the pendulum assembly.

[0012] The damping adjustment mechanism is mounted on the control box and is connected to the damping assembly for adjusting the damping resistance of the damping assembly.

[0013] The triggering mechanism is located inside the control box and is connected between the pendulum assembly and the force-bearing block;

[0014] When the pole on which the circuit breaker is installed tilts beyond its limit, the pendulum assembly swings relative to the control box under the action of gravity. When the pendulum assembly swings to the preset trigger position, the trigger mechanism drives the force block to slide relative to the lifting frame, so that the output end of the opening and closing drive assembly is disconnected from the force block. The lifting frame then moves the moving contact down along the slide rail instantly to complete the opening operation.

[0015] In a preferred embodiment, the stationary contact is fixedly installed at the top of the insulating cylinder in a through manner, and an insulating post is installed at one end of the moving contact. The insulating post is slidably installed at the bottom of the insulating cylinder in a longitudinal through manner. An insulating plate is fixedly sleeved on the lower outer wall of the insulating post, and a storage spring is fixedly connected between the insulating plate and the operating box.

[0016] In a preferred embodiment, a spring is connected between the force-bearing block and the lifting frame, the spring being used to apply an elastic force to the force-bearing block toward the output end of the opening and closing drive assembly; ball bearings are embedded on the surface of the force-bearing block that is in sliding contact with the lifting frame.

[0017] In a preferred embodiment, the pendulum assembly includes a base, which is fixedly connected to the control box via a support rod. A pendulum rod is connected to the lower end of the base via a ball joint. A counterweight ball is fixedly connected to one end of the pendulum rod. The base has annularly distributed movable slots. A piston rod is slidably inserted into each movable slot in the vertical direction. A piston plate is fixedly sleeved on the outer wall of each piston rod. A traction rope is fixedly connected to the lower end of each piston rod, and one end of the traction rope is fixedly connected to the counterweight ball.

[0018] In a preferred embodiment, the counterweight ball is made of a high-density alloy material.

[0019] In a preferred embodiment, the damping assembly includes fixed plates, with two fixed plates fixedly connected to the inner wall of each movable slot. An oil storage chamber is formed between the two fixed plates, and the oil storage chamber is divided into an upper oil chamber and a lower oil chamber by a piston plate. An oil delivery channel is provided between the upper oil chamber and the lower oil chamber. The piston rod passes through the two fixed plates in a piston-like manner, and a compression spring is fixedly connected between the piston plate and the lower fixed plate. A turntable is rotatably connected to the base via a sealed bearing. A toothed ring is fixedly sleeved on the outer wall of the turntable, and multiple sets of through holes are provided on the turntable in an array.

[0020] In a preferred embodiment, the diameter of the plurality of through holes in each group increases sequentially along a predetermined direction.

[0021] In a preferred embodiment, the damping adjustment mechanism includes a rotating rod rotatably connected to the operating box via a bearing. A gear is fixedly installed at the lower end of the rotating rod, and a hexagonal slot is formed at the upper end of the rotating rod, into which a hexagonal prism is inserted. A return spring is fixedly connected between the hexagonal prism and the rotating rod. A disc is fixedly connected to the upper end of the rotating rod. Limiting holes distributed in a ring are formed on the top surface of the operating box around the rotating rod. A limiting rod that matches the limiting holes is fixedly connected to the bottom surface of the disc.

[0022] In a preferred embodiment, the triggering mechanism includes a vertical rod slidably inserted into the center of the base. A circular plate is fixedly sleeved on the upper end of the vertical rod. Multiple guide rods are fixedly connected to the top surface of the inner cavity of the operating box. A horizontal rod is slidably connected to the guide rod and fixedly connected to the vertical rod. A lever distributed in a ring is hinged to the top surface of the base. One end of the lever is engaged with the upper end of the piston rod, and the other end of the lever is located below the circular plate. A bracket is also fixedly connected to the top surface of the inner cavity of the operating box. A lever is rotatably connected to the bracket, and a torsion spring is fixedly connected between the lever and the bracket. A circular rod is fixedly connected to one end of the horizontal rod.

[0023] In a preferred embodiment, the triggering mechanism further includes a normally open micro switch and an alarm. The normally open micro switch is embedded in one end of a round rod, and the alarm is fixedly installed on the top surface of the control box. The alarm and the normally open micro switch are electrically connected.

[0024] The technical effects achieved by this invention are as follows:

[0025] This invention utilizes a pendulum assembly with a ball-joint pendulum rod and a ring-shaped distribution of traction ropes. The counterweight ball remains vertically downward under gravity. When the utility pole tilts in any direction, the base deflects accordingly, and at least one of the ring-shaped traction ropes is tightened, driving the corresponding piston rod. This converts the tilt angle signal in any direction into a linear displacement of the piston rod, thus achieving 360° omnidirectional tilt detection. Compared to existing technologies where the counterweight slider can only slide in a single limiting groove direction and completely fails once the utility pole tilts perpendicular to the groove direction or in other directions, this invention significantly improves the circuit breaker's adaptability to complex tilting conditions, ensuring reliable triggering of protective actions even when tilted in any direction.

[0026] This invention utilizes hydraulic oil and a turntable with a throttling orifice (through hole) within an oil reservoir. When the utility pole vibrates at high frequency due to strong winds, the piston rod and piston plate reciprocate accordingly. Due to the viscous resistance of the hydraulic oil and the damping effect of the throttling orifice, the oil cannot pass through the through hole quickly and instantaneously, generating a strong damping force on the piston plate. This effectively suppresses the high-frequency vibration of the piston rod, preventing it from reaching the preset trigger position. Simultaneously, a certain safe distance is maintained between the microswitch at the end of the round rod and the lever. When the crossbar rises and falls slightly, the microswitch only triggers the alarm and does not drive the lever to rotate significantly, further ensuring that the triggering mechanism is not arbitrarily triggered. Compared to the technical defects of existing technologies where the counterweight slider slides back and forth with the swaying of the utility pole, leading to frequent circuit breaker tripping, mechanical wear, and arc reignition, this invention achieves effective filtering of high-frequency interference such as wind vibration through a dual protection mechanism of hydraulic damping and mechanical clearance, significantly improving the operational stability of the equipment and the safety of the power grid.

[0027] This invention utilizes a storage spring to pre-store elastic potential energy during the closing process. When tilting triggers automatic tripping, the force block completely disengages from the output of the opening / closing drive assembly, the lifting frame loses support, and the storage spring instantly releases all its elastic potential energy. This propels the insulating plate, insulating column, lifting frame, and moving contact rapidly downwards along the slide rail with tremendous acceleration, achieving instantaneous separation between the moving and stationary contacts. Furthermore, the damping adjustment mechanism allows for convenient switching between different orifice diameters to alter the damping resistance, enabling the circuit breaker to flexibly adjust tilt detection sensitivity according to varying geographical environments and climatic conditions. Simultaneously, the alarm provides tiered early warning functionality, offering effective decision-making support for power grid operation and maintenance. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a bottom sectional view of the overall structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the internal structure of the operating box of the present invention;

[0032] Figure 4 This is the present invention. Figure 3 An enlarged schematic diagram of part A shown in the image;

[0033] Figure 5 This is a schematic diagram showing the cooperation of the force-bearing block, the opening and closing drive assembly, and the lever of the present invention;

[0034] Figure 6 This is a schematic diagram of the force-bearing block of the present invention;

[0035] Figure 7 This is a schematic diagram showing the connection of the tilt detection mechanism, damping adjustment mechanism, and triggering mechanism of the present invention;

[0036] Figure 8 This is the present invention. Figure 7 An enlarged schematic diagram of part B shown in the image;

[0037] Figure 9 This is a partial structural diagram of the turntable of the present invention;

[0038] Figure 10 This is a schematic diagram of the damping adjustment component of the present invention.

[0039] The attached diagram lists the components represented by each number as follows:

[0040] 1. Control box; 2. Insulating cylinder; 3. Opening and closing drive assembly; 4. Lifting frame; 41. Force block; 42. Spring; 5. Tilt detection mechanism; 51. Pendulum assembly; 52. Damping assembly; 6. Damping adjustment mechanism; 7. Triggering mechanism;

[0041] 511. Base; 512. Swing rod; 513. Counterweight ball; 514. Movable groove; 515. Piston rod; 516. Piston plate; 517. Traction rope;

[0042] 521. Fixing plate; 522. Oil delivery channel; 523. Compression spring; 524. Turntable; 525. Gear ring; 526. Through hole;

[0043] 61. Rotating rod; 62. Gear; 63. Hexagonal prism; 64. Return spring; 65. Disc; 66. Limiting hole; 67. Limiting rod;

[0044] 71. Vertical rod; 72. Circular plate; 73. Guide rod; 74. Horizontal rod; 75. Lever; 76. Bracket; 77. Toggle lever; 78. Round rod; 79. Micro switch; 710. Alarm. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0046] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0047] Please see the appendix Figures 1 to 7 As shown, this embodiment provides a primary and secondary integrated pole-mounted circuit breaker that improves the tripping response speed. It includes an operating box 1, several insulating cylinders 2 fixedly installed on the top of the operating box 1, and a tripping and closing drive assembly 3 installed inside the operating box 1. Each insulating cylinder 2 is provided with a stationary contact and a moving contact. It also includes a lifting frame 4, a tilt detection mechanism 5, a damping adjustment mechanism 6, and a triggering mechanism 7.

[0048] The lifting frame 4 is slidably mounted on the slide rail inside the control box 1, and the lifting frame 4 is fixedly connected to each moving contact; a force-bearing block 41 is slidably connected in the middle of the lifting frame 4, and the output end of the opening and closing drive assembly 3 is driven to cooperate with the force-bearing block 41 so as to drive the lifting frame 4 and the moving contact to perform lifting and lowering movements through the opening and closing drive assembly 3, thereby realizing the opening and closing operation of the circuit breaker.

[0049] The tilt detection mechanism 5 includes a pendulum assembly 51 and a damping assembly 52. ​​The pendulum assembly 51 is located inside the operation box 1, and the damping assembly 52 is integrated on the pendulum assembly 51 to provide damping resistance for the swing of the pendulum assembly 51.

[0050] The damping adjustment mechanism 6 is mounted on the control box 1 and is connected to the damping assembly 52 for adjusting the damping resistance of the damping assembly 52.

[0051] The triggering mechanism 7 is located inside the control box 1 and is connected between the pendulum assembly 51 and the force block 41.

[0052] When the pole on which the circuit breaker is installed tilts beyond the limit, the pendulum assembly 51 swings relative to the control box 1 under the action of gravity. When the pendulum assembly 51 swings to the preset trigger position, the trigger mechanism 7 drives the force block 41 to slide relative to the lifting frame 4, so that the output end of the opening and closing drive assembly 3 is disconnected from the force block 41. The lifting frame 4 then moves the moving contact down along the slide rail instantly to complete the opening operation.

[0053] In this embodiment, the circuit breaker is installed entirely on the top of the utility pole. In use, the control box 1 is first horizontally fixed to the utility pole using a support frame. During normal operation, the opening and closing drive assembly 3 provides the driving force: the output end of the opening and closing drive assembly 3 moves upward, pushing the force-bearing block 41, which in turn drives the lifting frame 4 to slide upward along the slide rail. The lifting frame 4 drives each moving contact fixedly connected to it to move upward synchronously until the moving contact makes tight contact with the stationary contact at the top of the insulating cylinder 2, thus achieving closing. When opening is required, the opening and closing drive assembly 3 is controlled to move downward. The lifting frame 4 and the force-bearing block 41 move downward along the slide rail under the rebound force of the storage spring, causing the moving contact to separate from the stationary contact, completing the normal opening operation. When a utility pole tilts beyond its limit due to geological disasters, foundation subsidence, or external impact, the pendulum assembly 51 swings relative to the control box 1 under the action of gravity, and drives the force block 41 to slide through the trigger mechanism 7, causing the output end of the opening and closing drive assembly 3 to disengage from the force block 41. The lifting frame 4 then moves the moving contact rapidly down along the slide rail under the instantaneous release of the energy storage spring, completing the emergency opening operation and achieving fault isolation.

[0054] Secondly, please refer to again Figure 2 and Figure 3 The stationary contact is fixedly installed at the top of the insulating cylinder 2 in a through manner. An insulating column is installed at one end of the moving contact. The insulating column is slidably installed at the bottom of the insulating cylinder 2 in a longitudinal through manner. An insulating plate is fixedly sleeved on the lower outer wall of the insulating column, and a storage spring is fixedly connected between the insulating plate and the operating box 1.

[0055] In this embodiment, the energy source for rapid tripping is the storage spring. During the closing process, when the moving contact moves upward with the lifting frame 4 and contacts the stationary contact, the insulating column drives the insulating plate to move upward synchronously, compressing the storage spring and storing elastic potential energy. During normal tripping, the lifting frame 4 moves downward synchronously with the retraction of the tripping drive assembly 3, and the storage spring pushes the moving contact to separate quickly. When the tilt triggers automatic tripping, when the force block 41 disengages from the output end of the tripping drive assembly 3, the lifting frame 4 loses its supporting force, and the storage spring instantly releases all the stored elastic potential energy, driving the insulating plate, insulating column, moving contact, and lifting frame 4 to move downward, achieving instantaneous separation of the moving contact and the stationary contact. Since the energy storage and release of the storage spring is completed instantaneously, and there is no energy loss in the intermediate transmission links in the drive path, the tripping response speed is extremely fast, effectively shortening the duration of the fault current.

[0056] Secondly, please refer to the following as well. Figures 4 to 6 A spring 42 is connected between the force-bearing block 41 and the lifting frame 4. The spring 42 is used to apply an elastic force to the force-bearing block 41 toward the output end of the opening and closing drive assembly 3. Ball bearings are embedded on the surface of the force-bearing block 41 and the lifting frame 4 in sliding contact.

[0057] In this embodiment, the spring 42 ensures that the force-bearing block 41 is always positioned corresponding to the output end of the opening / closing drive assembly 3 under normal conditions, guaranteeing that the opening / closing drive assembly 3 can push the force-bearing block 41 to perform a closing operation. Simultaneously, when the force-bearing block 41 is actuated by the trigger mechanism 7 and slides relative to the lifting frame 4, the spring 42 is compressed; when the external force is removed, the spring 42 can drive the force-bearing block 41 to automatically return to its initial position, facilitating the re-establishment of transmission cooperation with the output end of the opening / closing drive assembly 3 during the next closing operation. Ball bearings are embedded in the sliding contact surface between the force-bearing block 41 and the lifting frame 4, transforming the sliding friction between them into rolling friction, significantly reducing friction. This ensures smooth sliding of the force-bearing block 41 when actuated, reduces mechanical wear, and improves the service life and operational reliability of the equipment.

[0058] Secondly, please refer to again Figure 7 and Figure 8 The pendulum assembly 51 includes a base 511, which is fixedly connected to the operation box 1 by a support rod. The lower end of the base 511 is connected to a pendulum rod 512 by a ball joint. One end of the pendulum rod 512 is fixedly connected to a counterweight ball 513. The base 511 has annularly distributed movable grooves 514. Each movable groove 514 is slidably inserted with a piston rod 515 in the vertical direction. A piston plate 516 is fixedly sleeved on the outer wall of each piston rod 515. A traction rope 517 is fixedly connected to the lower end of each piston rod 515, and one end of the traction rope 517 is fixedly connected to the counterweight ball 513. The counterweight ball 513 is made of high-density alloy material.

[0059] In this embodiment, the pendulum assembly 51 constitutes the core of the omnidirectional tilt sensing. The base 511 is fixedly connected to the operating box 1 via a support rod, so the posture of the base 511 changes synchronously with the operating box 1. The pendulum rod 512 is connected to the lower end of the base 511 via a ball joint, and the counterweight ball 513 is fixed to the end of the pendulum rod 512. The counterweight ball 513 is made of high-density alloy material and has a large mass, so it always maintains a vertical downward trend under the action of gravity. Multiple traction ropes 517 are distributed in a ring, with one end fixedly connected to the counterweight ball 513 and the other end fixedly connected to the lower end of the corresponding piston rod 515. In the initial equilibrium state (operating box 1 is horizontal), the counterweight ball 513 is kept vertically hanging down by the pendulum rod 512 under the action of gravity, the tension of the multiple ring-distributed traction ropes 517 is balanced, and each piston rod 515 and piston plate 516 is in the initial equilibrium position. When the utility pole tilts in any direction, the control box 1 rotates synchronously with the pole, while the counterweight ball 513 remains vertical due to gravity. This tightens the traction rope 517 on the opposite side of the tilt, causing the corresponding piston rod 515 to slide downwards along the movable groove 514, converting the tilt angle signal into a linear displacement of the piston rod 515. Because the traction ropes 517 are arranged in a ring, at least one traction rope 517 is tightened and drives the corresponding piston rod 515 regardless of the direction the pole tilts, thus achieving omnidirectional tilt signal detection and overcoming the technical deficiency of traditional technologies with only one trigger direction. The use of a high-density alloy material for the counterweight ball 513 increases the pendulum's inertia, improving the sensitivity and stability of tilt detection.

[0060] Please refer to it again. Figures 7 to 9 The damping assembly 52 includes a fixed plate 521. Two fixed plates 521 are fixedly connected to the inner wall of each movable groove 514. An oil storage chamber is formed between the two fixed plates 521. The oil storage chamber is divided into an upper oil chamber and a lower oil chamber by a piston plate 516. An oil delivery channel 522 is provided between the upper oil chamber and the lower oil chamber. The piston rod 515 passes through the two fixed plates 521 in a piston-like manner. A compression spring 523 is fixedly connected between the piston plate 516 and the fixed plate 521 located below. A turntable 524 is rotatably connected to the base 511 through a sealed bearing. A toothed ring 525 is fixedly sleeved on the outer wall of the turntable 524. The turntable 524 has multiple sets of through holes 526 arranged in an array. The diameter of the multiple through holes 526 in each set increases sequentially along a preset direction.

[0061] In this embodiment, the damping component 52 constitutes the core mechanism for resisting high-frequency swaying interference. The oil reservoir formed between the two fixed plates 521 is pre-filled with hydraulic oil. When the piston rod 515 is pulled downwards by the traction rope 517, the piston plate 516 moves downwards simultaneously, squeezing the hydraulic oil in the lower oil chamber, causing the hydraulic oil in the lower oil chamber to flow into the upper oil chamber along the oil delivery channel 522. During this process, the hydraulic oil must flow through the through hole 526 opened on the turntable 524. Since the through hole 526 is a small-diameter throttling orifice, the hydraulic oil is subjected to viscous resistance and throttling damping effect when flowing through it. When the utility pole sways at high frequency due to strong winds or other reasons, the counterweight ball 513 swings frequently, and the traction rope 517 drives the piston rod 515 and piston plate 516 to generate high-frequency reciprocating motion. At this time, due to the damping effect of the hydraulic oil, the oil cannot pass through the through hole 526 quickly in an instant, thus generating a strong damping force on the movement of the piston plate 516. This effectively suppresses the high-frequency vibration of the piston rod 515, preventing it from moving up and down frequently, and thus avoiding frequent false tripping of the circuit breaker caused by the triggering mechanism 7 being triggered arbitrarily. When the utility pole experiences a continuous unidirectional tilt, the piston rod 515 moves slowly and steadily under the continuous traction force, and the hydraulic oil passes through the through hole 526 at a constant rate, allowing the piston plate 516 to reach the preset trigger position. In addition, the compression spring 523 is compressed when the piston plate 516 moves down. When the traction force disappears, the compression spring 523 releases its elasticity, pushing the piston plate 516 and piston rod 515 upward to reset. The hydraulic oil in the upper oil chamber flows back to the lower oil chamber along the original path, achieving automatic reset. Through the above methods, the damping component 52 effectively filters high-frequency interference such as wind vibration, ensuring the accuracy and reliability of tilt detection.

[0062] Please refer to it again. Figures 3 to 7 The triggering mechanism 7 includes a vertical rod 71, which is slidably inserted into the center of the base 511. A circular plate 72 is fixedly sleeved on the upper end of the vertical rod 71. Multiple guide rods 73 are fixedly connected to the top surface of the inner cavity of the operation box 1. A horizontal rod 74 is slidably connected to the guide rod 73 and is fixedly connected to the vertical rod 71. A lever 75 distributed in a ring is hinged to the top surface of the base 511. One end of the lever 75 is connected to the upper end of the piston rod 515. The other end of the lever 75 is located below the circular plate 72. A bracket 76 is also fixedly connected to the top surface of the inner cavity of the operation box 1. A lever 77 is rotatably connected to the bracket 76 and a torsion spring is fixedly connected between the lever 77 and the bracket 76. A circular rod 78 is fixedly connected to one end of the horizontal rod 74.

[0063] In this embodiment, the triggering mechanism 7 realizes the action conversion from tilt signal to mechanical tripping. When the utility pole tilts continuously beyond the limit, at least one piston rod 515 is pulled down to a preset trigger position by the traction rope 517. The upper end of the piston rod 515 is connected to one end of the lever 75 (e.g., hinged). When the piston rod 515 moves down, it causes the lever 75 to rotate around its hinge point. The end of the lever 75 away from the piston rod 515 (i.e., the end located below the circular plate 72) tilts up, thereby pushing the circular plate 72 upward. The circular plate 72 causes the vertical rod 71 to slide upward along the center of the base 511. The vertical rod 71 causes the horizontal rod 74, which is fixedly connected to it, to move upward synchronously along the guide rod 73. When the horizontal rod 74 moves upward, the circular rod 78, which is fixedly connected to one end, rises accordingly and abuts against the lever 77, causing the lever 77 to rotate around the bracket 76. After the lever 77 rotates, it actuates the force block 41, causing the force block 41 to slide in the middle of the lifting frame 4, overcoming the elastic force of the spring 42. This allows it to move away from directly above the output end of the opening / closing drive assembly 3, disengaging the output end of the opening / closing drive assembly 3 from the force block 41. The lifting frame 4 then loses its support, and under the rebound of the storage spring, the moving contact moves downward instantaneously, completing the rapid opening operation. The torsion spring fixedly connected between the lever 77 and the bracket 76 stores elastic potential energy when the lever 77 rotates. When the external force is eliminated, the torsion spring drives the lever 77 to automatically reset. Through the aforementioned annular lever 75 and piston rod 515 cooperation structure, regardless of which direction the piston rod 515 is triggered to move downward, it can drive the circular plate 72 and vertical rod 71 upward through the corresponding lever 75, thereby triggering the lever 77 to move, achieving reliable triggering with omnidirectional tilting.

[0064] It should be noted that a ball bearing is provided at the position where the output end of the opening and closing drive component 3 contacts the force block 41 (not shown in the figure).

[0065] Please refer to it again. Figure 4 and Figure 7 The triggering mechanism 7 also includes a normally open micro switch 79 and an alarm 710. The normally open micro switch 79 is embedded in one end of the round rod 78. The alarm 710 is fixedly installed on the top surface of the control box 1, and the alarm 710 and the normally open micro switch 79 are electrically connected.

[0066] In this embodiment, the normally open micro switch 79 and the alarm 710 constitute a graded early warning system. In the initial state, the micro switch 79 at the end of the round rod 78 maintains a certain distance from the lever 77. When the crossbar 74 experiences a slight rise or fall due to a small tilt or sway, the micro switch 79 on the round rod 78 intermittently contacts the lever 77, closing the micro switch 79, completing the circuit, and transmitting an electrical signal to the alarm 710, triggering an alarm. Specifically, when the utility pole sways due to wind, the crossbar 74 moves back and forth, and the micro switch 79 intermittently contacts the lever 77, generating intermittent alarm signals to alert maintenance personnel that the utility pole may be swaying. When the utility pole experiences a small, continuous tilt, the crossbar 74 remains in the upward position, and the micro switch 79 remains in contact with the lever 77 for an extended period, generating continuous alarm signals to alert maintenance personnel that the utility pole may be tilting slightly and requires timely attention and handling. When the power pole tilts significantly, the horizontal bar 74 moves upward more sharply, causing the round bar 78 to rotate the lever 77 significantly. This lever 77 then pushes the force block 41 completely away from the output end of the opening and closing drive assembly 3, executing the opening operation. Through this method, graded identification and early warning of tilt levels are achieved, providing an effective decision-making basis for power grid operation and maintenance.

[0067] Please refer to it again. Figure 7 and Figure 10 The damping adjustment mechanism 6 includes a rotating rod 61, which is rotatably connected to the operating box 1 via a bearing. A gear 62 is fixedly installed at the lower end of the rotating rod 61. A hexagonal slot is provided at the upper end of the rotating rod 61, and a hexagonal prism 63 is inserted therein. A return spring 64 is fixedly connected between the hexagonal prism 63 and the rotating rod 61. A disc 65 is fixedly connected to the upper end of the rotating rod 61. A limiting hole 66 is provided in a ring around the top surface of the operating box 1. A limiting rod 67 that matches the limiting hole 66 is fixedly connected to the bottom surface of the disc 65.

[0068] In this embodiment, the damping adjustment mechanism 6 is used to adjust the damping resistance of the damping component 52 according to different usage environments, thereby adjusting the sensitivity of the tilt detection. The specific adjustment method is as follows: The operator first pulls the disc 65 upward, and the disc 65 drives the hexagonal prism 63 to move upward along the hexagonal groove of the rotating rod 61, while simultaneously stretching the return spring 64. After the disc 65 moves upward, the limiting rod 67 on its bottom surface disengages from the limiting hole 66 on the top surface of the operating box 1. At this time, the disc 65 and the hexagonal prism 63 are in a state of free rotation. Then, the disc 65 is rotated, and the hexagonal prism 63 drives the rotating rod 61 to rotate synchronously. The gear 62 fixedly installed at the lower end of the rotating rod 61 rotates accordingly. The gear 62 meshes with the gear ring 525 fixedly sleeved on the outer wall of the disc 524, thereby driving the disc 524 to rotate on the base 511. When the turntable 524 rotates, the position of the through holes 526 on it relative to the oil delivery channel 522 changes, causing through holes 526 of different diameters to align with the path of the oil delivery channel 522. When the smaller diameter through hole 526 is aligned with the oil delivery channel 522, the hydraulic oil flow resistance increases, the damping is enhanced, the system's response to tilt becomes less sensitive, and the wind vibration resistance is enhanced, making it suitable for typhoon-prone areas or intersections with significant vibration; when the larger diameter through hole 526 is aligned with the oil delivery channel 522, the hydraulic oil flow resistance decreases, the damping is weakened, and the system's response to tilt becomes more sensitive, making it suitable for mountainous areas with soft foundations and where slow settlement needs to be prevented. After adjustment, the disc 65 is released, the return spring 64 releases its elasticity, driving the hexagonal prism 63 and the disc 65 to return downwards. The limit rod 67 is reinserted into the corresponding limit hole 66, locking the disc 65, hexagonal prism 63, rotating rod 61, gear 62, gear ring 525, and turntable 524 in their current positions to prevent loosening due to vibration. As a preferred embodiment, the disc 65 is equipped with a pointer, and the top surface of the control box 1 has a scale line (not shown in the figure) at the pointer position to clearly indicate the rotation angle of the gear ring 525, allowing the operator to precisely adjust the through-hole 526 of a specific diameter to the oil delivery channel 522. For example, rotating the gear 62 ninety degrees adjusts the next set of through-holes 526 to the oil delivery channel 522. Through this method, the damping adjustment mechanism 6 achieves convenient adjustment of the tilt detection sensitivity, enabling the circuit breaker to adapt to different geographical environments and climatic conditions.

[0069] It should be noted that an annular rubber sealing ring (not shown in the figure) is provided on the oil supply channel 522, in the area corresponding to the through hole 526. This sealing ring can tightly fit the upper and lower sides of the turntable 524 to prevent hydraulic oil leakage.

[0070] The working principle of this invention is as follows:

[0071] During normal operation, the output end of the opening and closing drive assembly 3 pushes the force block 41 upward, which in turn drives the lifting frame 4 to move upward along the slide rail. The lifting frame 4 then drives the moving contact to rise synchronously until it contacts the stationary contact, completing the closing operation. At the same time, the moving contact compresses the energy storage spring through the insulating column and insulating plate, allowing the energy storage spring to store elastic potential energy. When the utility pole tilts in any direction, the base 511 deflects with the operating box 1, while the counterweight ball 513 remains vertical under the action of gravity, tightening the traction rope 517 corresponding to the tilt direction, thus pulling... Rope 517 drives piston rod 515 and piston plate 516 downward, squeezing the hydraulic oil in the oil storage chamber to flow through oil delivery channel 522 and through hole 526 on turntable 524. If it is a high-frequency shaking, the piston rod 515 cannot be pushed to the trigger position due to the damping effect, thus achieving anti-wind vibration filtering. If it is a continuous over-limit tilt, piston rod 515 slowly moves to the preset trigger position, and its upper end pushes lever 75 to flip. The tilted end of lever 75 pushes circular plate 72, and circular plate 72 drives vertical rod 71 and horizontal rod 74 along guide rod 73. As the horizontal bar 74 moves upward, the round rod 78 at its end contacts the lever 77 and rotates. The lever 77 then moves the force block 41 away from the output end of the opening and closing drive assembly 3, overcoming the elastic force of the spring 42. The opening and closing drive assembly 3 disengages from the force block 41, the lifting frame 4 loses its support, and the energy storage spring instantly releases all its elastic potential energy, driving the insulating plate, insulating column, lifting frame 4, and moving contact to move downward at an extremely fast speed, causing the moving contact to separate instantly from the stationary contact, completing the emergency opening. If the tilt does not reach the trigger threshold, the micro switch on the round rod 78... When the switch 79 and lever 77 make intermittent or continuous contact, the alarm 710 is triggered to issue a graded warning. In addition, by pulling up the disc 65, the limit lever 67 is disengaged from the limit hole 66. The disc 65 is rotated, and the disc 524 is driven to rotate via the hexagonal prism 63, the rotating rod 61, the gear 62 and the gear ring 525. This allows the through holes 526 of different diameters to be aligned with the oil supply channel 522, thereby adjusting the damping to adapt to different environments. After adjustment, the disc 65 is released, and the return spring 64 drives the limit lever 67 to insert into the limit hole 66 to complete the locking.

[0072] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0073] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker with improved tripping response speed, comprising an operating box (1), a plurality of insulating cylinders (2) fixedly disposed at the top of the operating box (1), and a tripping and closing drive assembly (3) disposed inside the operating box (1), wherein each insulating cylinder (2) is provided with a stationary contact and a moving contact, characterized in that, It also includes a lifting frame (4), a tilt detection mechanism (5), a damping adjustment mechanism (6), and a triggering mechanism (7); The lifting frame (4) is slidably mounted on the slide rail inside the operating box (1), and the lifting frame (4) is fixedly connected to each moving contact; a force block (41) is slidably connected in the middle of the lifting frame (4), and the output end of the opening and closing drive assembly (3) is driven to cooperate with the force block (41) so as to drive the lifting frame (4) and the moving contact to make lifting and lowering movements through the opening and closing drive assembly (3) to realize the opening and closing operation of the circuit breaker; The tilt detection mechanism (5) includes a pendulum assembly (51) and a damping assembly (52). The pendulum assembly (51) is located inside the operation box (1), and the damping assembly (52) is integrated on the pendulum assembly (51) to provide damping resistance for the swing of the pendulum assembly (51). The damping adjustment mechanism (6) is mounted on the operation box (1) and is connected to the damping assembly (52) for adjusting the damping resistance of the damping assembly (52). The triggering mechanism (7) is located inside the operation box (1) and is connected between the pendulum assembly (51) and the force block (41). When the pole on which the circuit breaker is installed tilts beyond the limit, the pendulum assembly (51) swings relative to the control box (1) under the action of gravity. When the pendulum assembly (51) swings to the preset trigger position, the trigger mechanism (7) drives the force block (41) to slide relative to the lifting frame (4) so ​​that the output end of the opening and closing drive assembly (3) is disconnected from the force block (41). The lifting frame (4) then drives the moving contact to move down instantly along the slide rail to complete the opening operation.

2. The primary and secondary integrated pole-mounted circuit breaker for improving tripping response speed according to claim 1, characterized in that: The stationary contact is fixedly installed at the top of the insulating cylinder (2) in a through manner. An insulating column is installed at one end of the moving contact. The insulating column is slidably installed at the bottom of the insulating cylinder in a longitudinal through manner. An insulating plate is fixedly sleeved on the lower outer wall of the insulating column, and a storage spring is fixedly connected between the insulating plate and the operating box (1).

3. The primary and secondary integrated pole-mounted circuit breaker for improving tripping response speed according to claim 1, characterized in that: A spring (42) is connected between the force-bearing block (41) and the lifting frame (4). The spring (42) is used to apply an elastic force to the force-bearing block (41) toward the output end of the opening and closing drive assembly (3). Ball bearings are embedded on the surface of the force-bearing block (41) and the lifting frame (4) in sliding contact.

4. The primary and secondary integrated pole-mounted circuit breaker for improving tripping response speed according to claim 1, characterized in that: The pendulum assembly (51) includes a base (511), which is fixedly connected to the operating box (1) by a support rod. The lower end of the base (511) is connected to a pendulum rod (512) by a ball joint. One end of the pendulum rod (512) is fixedly connected to a counterweight ball (513). The base (511) has annularly distributed movable grooves (514). Each movable groove (514) is slidably inserted with a piston rod (515) in the vertical direction. The outer wall of each piston rod (515) is fixedly fitted with a piston plate (516). The lower end of each piston rod (515) is fixedly connected to a traction rope (517), and one end of the traction rope (517) is fixedly connected to the counterweight ball (513).

5. A primary and secondary integrated pole-mounted circuit breaker for improving tripping response speed according to claim 4, characterized in that: The counterweight ball (513) is made of high-density alloy material.

6. A primary and secondary integrated pole-mounted circuit breaker for improving tripping response speed according to claim 4, characterized in that: The damping assembly (52) includes a fixed plate (521). Two fixed plates (521) are fixedly connected to the inner wall of each movable groove (514). An oil storage chamber is formed between the two fixed plates (521). The oil storage chamber is divided into an upper oil chamber and a lower oil chamber by a piston plate (516). An oil delivery channel (522) is provided between the upper oil chamber and the lower oil chamber. The piston rod (515) passes through the two fixed plates (521) in a piston-like manner. A compression spring (523) is fixedly connected between the piston plate (516) and the fixed plate (521) located below. A turntable (524) is rotatably connected to the base (511) through a sealed bearing. A toothed ring (525) is fixedly sleeved on the outer wall of the turntable (524). The turntable (524) has multiple sets of through holes (526) arranged in an array.

7. A primary and secondary integrated pole-mounted circuit breaker for improving tripping response speed according to claim 6, characterized in that: The diameter of the multiple through holes (526) in each group increases sequentially along a preset direction.

8. A primary and secondary integrated pole-mounted circuit breaker for improving tripping response speed according to claim 1, characterized in that: The damping adjustment mechanism (6) includes a rotating rod (61), which is rotatably connected to the operating box (1) via a bearing. A gear (62) is fixedly installed at the lower end of the rotating rod (61). A hexagonal groove is opened at the upper end of the rotating rod (61), and a hexagonal prism (63) is inserted therein. A return spring (64) is fixedly connected between the hexagonal prism (63) and the rotating rod (61). A disc (65) is fixedly connected at the upper end of the rotating rod (61). A limiting hole (66) is opened in a ring around the top surface of the operating box (1) and around the rotating rod (61). A limiting rod (67) that matches the limiting hole (66) is fixedly connected to the bottom surface of the disc (65).

9. A primary and secondary integrated pole-mounted circuit breaker for improving tripping response speed according to claim 4, characterized in that: The triggering mechanism (7) includes a vertical rod (71), which is slidably inserted into the center of the base (511). A circular plate (72) is fixedly sleeved on the upper end of the vertical rod (71). Multiple guide rods (73) are fixedly connected to the top surface of the inner cavity of the operation box (1). A horizontal rod (74) is slidably connected to the guide rod (73), and the horizontal rod (74) is fixedly connected to the vertical rod (71). A lever (75) is hinged to the top surface of the base (511) in a ring distribution. One end of the lever (75) is connected to the upper end of the piston rod (515), and the other end of the lever (75) is located below the circular plate (72). A bracket (76) is also fixedly connected to the top surface of the inner cavity of the operation box (1). A lever (77) is rotatably connected to the bracket (76), and a torsion spring is fixedly connected between the lever (77) and the bracket (76). A circular rod (78) is fixedly connected to one end of the horizontal rod (74).

10. A primary and secondary integrated pole-mounted circuit breaker for improving tripping response speed according to claim 9, characterized in that: The triggering mechanism (7) also includes a normally open micro switch (79) and an alarm (710). The normally open micro switch (79) is embedded in one end of a round rod (78). The alarm (710) is fixedly installed on the top surface of the operation box (1), and the alarm (710) and the normally open micro switch (79) are electrically connected.

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