A high-voltage vacuum permanent-magnet circuit breaker with solid-sealed pole

Abstract

The application discloses a high-voltage solid-sealed pole vacuum permanent-magnetic circuit breaker, which comprises a permanent-magnetic circuit breaker body, a base arranged at the lower end of the permanent-magnetic circuit breaker body, and a mounting mechanism arranged between the permanent-magnetic circuit breaker body and the base and used for fixedly connecting the permanent-magnetic circuit breaker with the base, wherein the mounting mechanism comprises a mounting rod arranged at the lower end of the permanent-magnetic circuit breaker body and a mounting cavity arranged on the base, one side of the mounting cavity is provided with a placing cavity, the placing cavity and the mounting cavity are communicated through a connecting groove, and a locking assembly capable of realizing automatic locking is arranged in the placing cavity and can automatically lock the mounting rod in response to the action of the mounting rod inserted into the mounting cavity. The close cooperation of the mounting rod and the mounting cavity and the automatic locking function of the locking assembly ensure the stable connection between the permanent-magnetic circuit breaker body and the base, and even under high-voltage environment, the circuit breaker can keep a stable working state and will not be loosened due to vibration or external force.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of vacuum permanent magnetic circuit breakers, in particular to a high-voltage solid-sealed pole vacuum permanent magnetic circuit breaker. BACKGROUND

[0002] The high-voltage solid-sealed pole vacuum permanent magnetic circuit breaker is one of the most important devices in a power system, and the stability and reliability of the performance of the high-voltage solid-sealed pole vacuum permanent magnetic circuit breaker directly relate to the safe operation of the power system. In the installation process of the traditional high-voltage solid-sealed pole vacuum permanent magnetic circuit breaker, the circuit breaker body and the base are usually fixed by bolt connection or other mechanical fixing methods. However, these traditional fixing methods have many disadvantages, such as complicated installation process, long time consumption, and easy loosening of the connection due to vibration or external force in the use process, thereby affecting the stability and reliability of the circuit breaker. Therefore, a new type of high-voltage solid-sealed pole vacuum permanent magnetic circuit breaker and an installation mechanism are urgently needed to solve the above problems, improve the stability and reliability of the circuit breaker, and meet the safe operation requirements of the power system. SUMMARY

[0003] The application aims to solve the above technical problems, and provides a high-voltage solid-sealed pole vacuum permanent magnetic circuit breaker.

[0004] To solve the above technical problems, the application provides the following technical scheme.

[0005] The application provides a high-voltage solid-sealed pole vacuum permanent magnetic circuit breaker,

[0006] a permanent magnetic circuit breaker body;

[0007] a base arranged at the lower end of the permanent magnetic circuit breaker body;

[0008] an installation mechanism arranged between the permanent magnetic circuit breaker body and the base and used for fixedly connecting the permanent magnetic circuit breaker and the base;

[0009] The installation mechanism comprises an installation rod arranged at the lower end of the permanent magnetic circuit breaker body and an installation cavity arranged on the base, one side of the installation cavity is provided with a placing cavity, the placing cavity and the installation cavity are connected in communication through a connecting groove, and a locking assembly capable of realizing automatic locking is arranged in the placing cavity. The locking assembly can automatically lock the installation rod in response to the action of the installation rod being inserted into the installation cavity, so as to fix the permanent magnetic circuit breaker body and the base.

[0010] Optionally, the locking assembly comprises:

[0011] a rotating shaft arranged in the placing cavity;

[0012] A connecting rod is rotatably arranged on the rotating shaft, one end of which extends into the placing box, and the other end interacts with the locking mechanism;

[0013] The placing box is located in the placing cavity, and installation grooves are formed in the side walls of the connecting grooves in upward and downward directions for the connecting rod to pass through;

[0014] The locking mechanism comprises a locking plate, a locking rod and a locking spring, the locking plate is connected to the right side wall of the placing cavity through the locking spring, a guide inclined surface is arranged on the locking plate, one end of the locking rod is connected to the locking plate, and the other end can extend into the connecting groove and cooperate with the locking groove on the installation rod to achieve locking.

[0015] Optionally, the end of the connecting rod extending into the placing box is provided with an arc surface, a gravity ball is embedded in the arc surface, the guide inclined surface is arranged in a structure in which the width increases in turn from bottom to top and left to right, the gravity ball is driven to fall by its own gravity, thereby driving the left end of the connecting rod to move downward along the installation groove, driving the right end of the connecting rod to move upward, further pressing the guide inclined surface of the locking plate, thereby driving the upper end of the locking plate to move towards the right side wall of the placing cavity, and further driving the locking rod to extend out of the connecting groove and be inserted into the locking groove, thereby fixing the installation rod.

[0016] Optionally, one end of a pull rope is arranged on the upper surface of the gravity ball, the other end of the pull rope extends out of the placing box and the upper end of the placing cavity to the outside of the base, a fixing rod is arranged on the outer surface of the base, and the pull rope is tied on the fixing rod, so that the gravity ball moves downward when the pull rope is loosened, thereby fixing the permanent magnetic circuit breaker body and the base.

[0017] Optionally, a limiting block is further arranged below the arc surface, the limiting block is fixed on the connecting rod, and is used for limiting the maximum falling distance of the arc surface, preventing the connecting rod from being damaged or the locking mechanism from being disabled due to excessive falling of the gravity ball.

[0018] Optionally, a reset mechanism is arranged on the locking mechanism, when the gravity ball cannot be unlocked by pulling the pull rope, the reset mechanism is used for unlocking, the reset mechanism comprises a reset inclined surface and a reset tool, the reset inclined surface is arranged on the locking plate and below the guide inclined surface, the inclination direction of the reset inclined surface is opposite to that of the guide inclined surface, and the reset inclined surface is arranged close to the right side wall of the locking plate, and the guide inclined surface is arranged close to the left side wall of the locking plate, thereby avoiding interference between the connecting rod and the reset tool.

[0019] When it is necessary to unlock, the reset tool is used to apply force to the reset slope of the locking plate, so that the locking plate moves to the left wall of the placement cavity against the elastic force of the locking spring, in turn drives the locking rod to exit the locking slot, and unlocks the mounting rod, facilitating disassembly of the permanent magnetic circuit breaker body, the reset tool is an unlocking rod, one end of the unlocking rod is provided with an unlocking slope matched with the reset slope, the other end penetrates the upper end side wall of the placement cavity and extends to the outside of the base, and an operating handle is arranged on the unlocking rod outside the base; when unlocking, the unlocking slope of the unlocking rod is attached to the reset slope and applies downward pressure, and the movement of the locking plate is easily realized through the principle of lever, improving the unlocking efficiency.

[0020] Optionally, the mounting mechanism is provided in at least two groups, and the two groups of mounting mechanisms are arranged at intervals.

[0021] In summary, the application has the following beneficial effects:

[0022] The high-voltage solid-seal pole vacuum permanent magnetic circuit breaker of the application ingeniously integrates an automatic locking mechanism in the design of the mounting mechanism, and the core of the mechanism is a locking assembly installed in the placement cavity of the base. When the mounting rod of the permanent magnetic circuit breaker body is inserted into the mounting cavity of the base, the connecting rod and the locking mechanism in the locking assembly will automatically respond. Specifically, one end of the connecting rod extends into the placement box and is embedded with a gravity ball. Under the action of its own gravity, the gravity ball drives one end of the connecting rod to move downward along a specific mounting slot. This action in turn drives the locking plate in the locking mechanism to move through the other end of the connecting rod, so that the locking rod extends and is firmly clamped into the locking slot on the mounting rod, thereby realizing automatic locking between the permanent magnetic circuit breaker body and the base. The entire process does not require manual intervention, greatly improving the installation efficiency and accuracy.

[0023] In order to meet the unlocking needs in different scenarios, the application provides two convenient unlocking methods. First, the gravity ball can be easily reset by pulling the rope. One end of the rope is connected to the upper surface of the gravity ball, and the other end extends to the outside of the base and can be fixed on the fixing rod on the outer surface of the base. When it is necessary to unlock, the gravity ball drives the connecting rod to move upward, thereby resetting the connecting rod and the locking mechanism, and unlocking the mounting rod. In addition, when the rope cannot be used for some reason, the locking can also be performed through a reset mechanism. The reset mechanism includes a reset slope and a reset tool such as an unlocking rod. By operating the reset tool, force can be easily applied to the reset slope of the locking plate, so that the locking plate moves against the elastic force of the locking spring, in turn drives the locking rod to exit the locking slot, and completes the unlocking operation. This design not only increases the flexibility of the equipment, but also improves its reliability. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1It is a schematic view of the body structure of the permanent magnetic circuit breaker of the present application.

[0025] Figure 2 It is a sectional view of the base structure of the present application.

[0026] Figure 3 It is an enlarged view of the locking assembly structure of the present application.

[0027] Figure 4 It is a view of the state of use of the present application with a telegraph pole.

[0028] Figure 5 It is a sectional view of the body structure of the permanent magnetic circuit breaker of the present application.

[0029] Figure 6 It is a side view of the locking plate structure of the present application.

[0030] Figure 7 It is a front view of the locking plate structure of the present application.

[0031] Figure 8 It is a side view of the placing box structure of the present application.

[0032] BRIEF DESCRIPTION OF THE DRAWINGS: 1 - permanent magnetic circuit breaker body, 2 - base, 3 - mounting rod, 4 - mounting cavity, 5 - placing cavity, 6 - connecting groove, 7 - rotating shaft, 8 - connecting rod, 9 - placing box, 10 - mounting groove, 11 - locking plate, 12 - locking rod, 13 - locking spring, 14 - guide inclined surface, 15 - arc surface, 16 - gravity ball, 17 - locking groove, 18 - pull rope, 19 - limiting block, 20 - reset inclined surface, 21 - reset tool. DETAILED DESCRIPTION

[0033] The technical solutions in the novel embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] EMBODIMENT:

[0035] As shown in the drawings, the present application provides a high-voltage solid-sealed pole vacuum permanent magnetic circuit breaker, Figures 1-8

[0036] a permanent magnetic circuit breaker body 1;

[0037] a base 2 arranged at the lower end of the permanent magnetic circuit breaker body 1;

[0038] a mounting mechanism arranged between the permanent magnetic circuit breaker body 1 and the base 2, for fixedly connecting the permanent magnetic circuit breaker and the base 2;​

[0039] The installation mechanism includes an installation rod 3 arranged at the lower end of the permanent magnetic circuit breaker body 1, and an installation cavity 4 arranged on the base 2. One side of the installation cavity 4 is provided with a placement cavity 5, and the placement cavity 5 and the installation cavity 4 are connected through a connecting groove 6. The placement cavity 5 is provided with a locking assembly capable of achieving automatic locking. The locking assembly can automatically lock the installation rod 3 in response to the action of the installation rod 3 being inserted into the installation cavity 4, so as to fix the permanent magnetic circuit breaker body 1 and the base 2.

[0040] The permanent magnetic circuit breaker body 1 is the core part of the circuit breaker, responsible for performing switching operations in the power system, especially for quickly cutting off the current in the event of a fault to protect the power grid and equipment. The permanent magnetic circuit breaker utilizes the magnetic force of a permanent magnet to maintain the closed or open state of the contacts, with the advantages of reliable operation and long service life. The base 2 is the basic structure that supports the permanent magnetic circuit breaker body 1, designed to be strong and stable to ensure that the circuit breaker can be firmly installed at the designated position in the power system. The installation mechanism is the key part connecting the permanent magnetic circuit breaker body 1 and the base 2, which not only ensures the stable connection between the two, but also facilitates the installation and removal of the circuit breaker.

[0041] The installation rod 3 is arranged at the lower end of the permanent magnetic circuit breaker body 1 and is a long strip-shaped structure, used to be inserted into the installation cavity 4 on the base 2. The installation cavity 4 is a cavity matching the installation rod 3 on the base 2, used to receive and fix the installation rod 3. The design of the installation cavity 4 ensures that the installation rod 3 can be accurately inserted and fixed at the predetermined position.

[0042] The locking assembly is the key part in the installation mechanism, responsible for automatically locking the installation rod 3 after it is inserted into the installation cavity 4, thereby ensuring the stable connection between the permanent magnetic circuit breaker body 1 and the base 2.

[0043] The locking assembly is designed with an automatic locking mechanism. When the installation rod 3 is inserted into the installation cavity 4 to a certain depth, the locking assembly will automatically respond and lock the installation rod 3 without the need for manual operation or additional tools. This design greatly simplifies the installation process and improves installation efficiency.

[0044] Through the close cooperation of the installation rod 3 and the installation cavity 4 and the automatic locking function of the locking assembly, the stable connection between the permanent magnetic circuit breaker body 1 and the base 2 is ensured. Even in a high-pressure environment, the circuit breaker can maintain a stable working state and will not loosen due to vibration or external force.

[0045] The stable connection not only improves the stability of the circuit breaker, but also enhances its safety. In the event of a fault in the power system, the circuit breaker can quickly and reliably cut off the current to prevent the fault from expanding and protect the safety of the power grid and equipment.

[0046] The locking assembly comprises:

[0047] A rotating shaft 7 is arranged in the placement cavity 5;

[0048] A connecting rod 8 is rotatably arranged on the rotating shaft 7, one end of which extends into a placement box 9, and the other end interacts with the locking mechanism;

[0049] The placement box 9 is located in the placement cavity 5, and mounting grooves 10 are formed in the side walls of the placement box 9 towards the connecting groove 6, for the connecting rod 8 to pass through;

[0050] The locking mechanism comprises a locking plate 11, a locking rod 12, and a locking spring 13, the locking plate 11 is connected to the right side wall of the placement cavity 5 through the locking spring 13, the locking plate 11 is provided with a guide inclined surface 14, one end of the locking rod 12 is connected to the locking plate 11, and the other end can extend into the connecting groove 6 and cooperate with the locking groove 17 on the mounting rod 3 to realize locking.

[0051] The rotating shaft 7 is a rotating component in the locking assembly, which is fixed in the placement cavity 5 to provide support and axis for the rotation of the connecting rod 8. The design of the rotating shaft 7 ensures that the connecting rod 8 can rotate smoothly on it, thereby realizing accurate control of the locking mechanism.

[0052] The connecting rod 8 is a key component connecting the rotating shaft 7 and the locking mechanism, one end of which is rotatably arranged on the rotating shaft 7, and the other end interacts with the locking mechanism.

[0053] The rotating movement of the connecting rod 8 is the key to realizing the automatic locking function of the locking assembly, which can convert the rotating action of the connecting rod 8 into the locking action of the locking mechanism.

[0054] The placement box 9 is an independent space in the placement cavity 5, which is used to accommodate part of the components of the connecting rod 8.

[0055] The design of the placement box 9 ensures that the connecting rod 8 and the locking mechanism can move orderly and stably inside it, while avoiding direct contact with the external environment, improving the durability of the assembly.

[0056] Mounting grooves 10 are formed in the side walls of the placement box 9 for the connecting rod 8 to pass through, thereby realizing the connection and transmission between the connecting rod 8 and the locking mechanism.

[0057] The locking mechanism is the core part of the locking assembly, which is composed of a locking plate 11, a locking rod 12, and a locking spring 13.

[0058] The locking plate 11 is the main moving component of the locking mechanism, which is connected to the side wall of the placement cavity 5 through the locking spring 13 and can move under the action of the spring force.

[0059] The locking plate 11 is provided with a guide inclined surface 14 for interacting with the end of the connecting rod 8 to convert the rotating movement of the connecting rod 8 into the moving movement of the locking plate 11.

[0060] The locking rod 12 is a locking component in the locking mechanism, one end of which is connected to the locking plate 11, and the other end can extend into the connecting groove 6 and cooperate with the locking groove 17 on the mounting rod 3 to realize the locking function.

[0061] The locking spring 13 provides the elastic force required for the movement of the locking plate 11, ensuring that the locking mechanism can automatically and reliably lock the mounting rod 3.

[0062] Due to the presence of the locking spring 13, the locking plate 11 will maintain a stable locking state after locking, and even if the mounting rod 3 is subjected to external force, it will not easily loosen. At the same time, the automatic response characteristics of the locking mechanism make the installation process more convenient and efficient, without the need for additional manual operation or adjustment.

[0063] The end of the connecting rod 8 extending into the placing box 9 is provided with an arc surface 15, the arc surface 15 is embedded with a gravity ball 16, the guide inclined surface 14 is arranged to have a structure in which the width increases from bottom to top and left to right, the gravity of the gravity ball 16 drives the arc surface 15 to fall, thereby driving the left end of the connecting rod 8 to descend along the mounting groove 10, thereby driving the right end of the connecting rod 8 to ascend, further pressing the guide inclined surface 14 of the locking plate 11, thereby driving the upper end of the locking plate 11 to move towards the right side wall of the placing cavity 5, further driving the locking rod 12 to extend out of the connecting groove 6 and be inserted into the locking groove 17, thereby fixing the mounting rod 3.

[0064] The application designs an arc surface 15 at the end of the connecting rod 8 extending into the placing box 9, which not only matches the movement trajectory of the connecting rod 8, but more importantly, a gravity ball 16 is embedded inside. The gravity ball 16, as a constant source of power in nature, can continuously and stably exert its effect without any external power or human intervention. When the device is in an unlocked state, the gravity ball 16 will naturally drag the arc surface 15 to move downward due to its own gravity. This movement process is smooth and continuous without the need for additional energy input, thereby realizing the automatic locking function of the device. This design greatly improves the user's experience, making the locking operation easy and convenient, and also significantly improves the automation level of the device.

[0065] With the gravity ball 16 driving the arc surface 15 to fall, the left end of the connecting rod 8 begins to slowly descend along the preset mounting groove 10, and this movement is accurate, which is jointly ensured by the design of the gravity ball 16 and the arc surface 15, at the same time, the right end of the connecting rod 8 moves upward correspondingly, forming a stable lever effect, this movement not only enables the connecting rod 8 to stably extrude the guide slope 14 of the locking plate 11, but also converts the extrusion force into the power for the locking plate 11 to move to the right side wall of the placement cavity 5 through the design of the guide slope 14, the upper end of the locking plate 11 is gradually close to and finally tightly attached to the right side wall of the placement cavity 5 under the pushing of the connecting rod 8, and the locking rod 12 is accurately extended out of the connecting groove 6 and tightly inserted into the locking groove 17 in this process, this series of actions is coherent and stable, which ensures the reliability and durability of the locking effect.

[0066] The design of the guide slope 14 not only considers the stability in the locking process, but also fully considers the adaptability of the device, and the guide slope 14 is specially designed to have an increasing width from bottom to top and left to right, which enables the locking plate 11 to easily slide along the guide slope 14 when being extruded by the connecting rod 8, and will not be hindered due to slight differences in size or installation, and this tolerant structure enables the device to accommodate a certain range of size errors and installation deviations, thereby improving the reliability and durability of the device, and neither size fluctuations in the production process nor slight adjustments in the installation process will affect the locking effect of the device.

[0067] The device is simple and concise in structure, mainly composed of several core components such as the connecting rod 8, the gravity ball 16, the locking plate 11, and the locking rod 12, these components not only have simple shapes and are easy to process, but also their connection and cooperation are carefully designed to ensure the stability and reliability of the device, since the gravity ball 16 is used as a driving element, the device does not need an additional power source or a complex control system, thereby greatly reducing the cost and maintenance difficulty of the device, at the same time, this simple structure also makes the device easier to assemble and disassemble, providing great convenience for subsequent maintenance and replacement, in general, the device realizes multiple functions such as automatic locking, stability and reliability, and strong adaptability with its simple and efficient design, and has wide application prospects and market value.

[0068] The upper surface of the gravity ball 16 is provided with one end of a pull rope 18, the other end of the pull rope 18 extends to the outside of the base 2 through the upper end of the placement box 9 and the upper end side wall of the placement cavity 5, the outer surface of the base 2 is provided with a fixed rod, and the pull rope 18 is tied on the fixed rod, loosening the pull rope 18 makes the gravity ball 16 descend, thereby fixing the permanent magnetic circuit breaker body 1 and the base 2.

[0069] By setting one end of the pull rope 18 on the upper surface of the gravity ball 16 and extending the other end of the pull rope 18 outside the base 2 and binding it on the fixed rod, the operator can conveniently control the position of the gravity ball 16 by controlling the pull rope 18. When it is necessary to fix the permanent magnet circuit breaker body 1 and the base 2, the pull rope 18 is only loosened, and the gravity ball 16 will descend under the action of its own gravity, and then the locking rod 12 is extended out of the connecting groove 6 and inserted into the locking groove 17, so as to firmly fix the permanent magnet circuit breaker body 1 on the base 2. Since the gravity of the gravity ball 16 is stable and continuous, this fixing method has high reliability and can ensure the stability of the permanent magnet circuit breaker body 1 on the base 2.

[0070] When the gravity ball 16 descends, it drives the connecting rod 8 mechanism to move, and finally makes the locking rod 12 extend out of the connecting groove 6 and be inserted into the locking groove 17, so as to firmly fix the permanent magnet circuit breaker body 1 on the base 2. Since the gravity of the gravity ball 16 is stable and continuous, this fixing method has high reliability and can ensure the stability of the permanent magnet circuit breaker body 1 on the base 2.

[0071] When it is necessary to unlock the permanent magnet circuit breaker body 1, the operator only needs to pull the pull rope 18 to lift the gravity ball 16 to a certain position, and then the locking state is released through the connecting rod 8 mechanism. This unlocking method is also simple and convenient, and does not require additional tools or equipment.

[0072] Through the cooperation of the pull rope 18 and the gravity ball 16, remote control and fixing can be realized, which avoids the operator directly contacting the live parts of the permanent magnet circuit breaker body 1 or the base 2, thereby improving the safety of operation.

[0073] The device mainly consists of simple components such as the pull rope 18, the gravity ball 16, the connecting rod 8 mechanism, etc. The structure is simple and clear, easy to process and assemble, and at the same time, since the number of components is small and the connection relationship is simple, maintenance is also relatively easy, which reduces the maintenance cost of the device.

[0074] The arc surface 15 is further provided below with a limiting block 19 fixed on the connecting rod 8 for limiting the maximum falling distance of the arc surface 15 to prevent the gravity ball 16 from causing damage to the connecting rod 8 or failure of the locking mechanism due to excessive falling.

[0075] The main function of the limiting block 19 is to limit the maximum falling distance of the arc surface 15. Under the action of the gravity ball 16, the arc surface 15 drives the connecting rod 8 to move. If there is no limiting of the limiting block 19, the gravity ball 16 will generate excessive impact force to the connecting rod 8 due to excessive falling, which may even cause bending, breaking or other damage to the connecting rod 8. The existence of the limiting block 19 effectively avoids such situation, which can timely prevent the arc surface 15 from continuing to fall when it falls to a certain position, thereby protecting the connecting rod 8 mechanism from being damaged.

[0076] The normal operation of the locking mechanism depends on the precise movement of the connecting rod 8 mechanism. If the connecting rod 8 is damaged due to excessive falling, the locking mechanism cannot work normally, which may cause the permanent magnet circuit breaker body 1 and the base 2 to be not firmly fixed or even completely fail. The limiting block 19 limits the falling distance of the arc surface 15, ensuring the normal movement range of the connecting rod 8 mechanism, thereby preventing the failure of the locking mechanism.

[0077] The design of the limiting block 19 increases the stability and reliability of the device. It enables the device to maintain the integrity of the connecting rod 8 mechanism and the locking mechanism when subjected to external forces such as vibration, impact, etc., ensuring the firm fixation between the permanent magnet circuit breaker body 1 and the base 2. This stability is crucial for the safe operation of the power system, as the permanent magnet circuit breaker is an important protection device in the power system, and its reliability and stability directly affect the safe operation of the entire system.

[0078] The design of the limiting block 19 is also an optimization of the entire device design. It considers the extreme case of the falling process of the gravity ball 16 and effectively solves this problem through a simple structure limiting block 19. This design not only improves the durability of the device, but also reduces the manufacturing cost and maintenance difficulty.

[0079] The locking mechanism is provided with a reset mechanism. When the gravity ball 16 cannot be unlocked by pulling the rope 18, the reset mechanism is used for unlocking. The reset mechanism includes a reset slope 20 and a reset tool 21. The reset slope 20 is provided on the locking plate 11 and is located below the guide slope 14. The inclination direction of the reset slope 20 is opposite to that of the guide slope 14. The reset slope 20 is arranged near the right side wall of the locking plate 11, and the guide slope 14 is arranged near the left side wall of the locking plate 11, thereby avoiding interference between the connecting rod 8 and the reset tool 21.

[0080] When unlocking is needed, the reset tool 21 is used to apply force to the reset slope 20 of the locking plate 11, so that the locking plate 11 moves to the left side wall of the placement cavity 5 against the elastic force of the locking spring 13, thereby driving the locking rod 12 to exit the locking groove 17 and unlocking the mounting rod 3, facilitating the disassembly of the permanent magnet circuit breaker body 1. The reset tool 21 is an unlocking rod. One end of the unlocking rod is provided with an unlocking slope matched with the reset slope 20, and the other end penetrates through the upper end side wall of the placement cavity 5 and extends to the outside of the base 2. An operating handle is arranged on the unlocking rod outside the base 2. When unlocking, the unlocking slope of the unlocking rod is attached to the reset slope 20 and applies downward pressure. The movement of the locking plate 11 is easily realized through the principle of leverage, improving the unlocking efficiency.

[0081] In complex industrial environments, the device can encounter various unforeseen problems, such as accidental damage to the pull rope 18, jamming of the gravity ball 16 due to long-term use or environmental factors, etc. These problems can make it impossible to unlock the locking rod 12 by the conventional method of pulling the gravity ball 16 on the pull rope 18, at this time, the reset mechanism as a backup unlocking scheme is particularly important, it not only provides an additional unlocking approach, but also ensures that the device can maintain its operability and maintainability in special circumstances, this design greatly improves the flexibility and overall reliability of the device, so that the permanent magnet circuit breaker body 1 can be successfully unlocked and disassembled in any case, thereby reducing the downtime caused by equipment failure and improving production efficiency.

[0082] The reset slope 20 is arranged below the locking plate 11, forms a reverse slope with the guide slope 14, and is adjacent to the right wall of the locking plate 11. This layout not only avoids any potential interference between the connecting rod 8 and the reset tool 21, especially the unlocking rod during movement, but also ensures that the reset mechanism can respond quickly and accurately when needed. The relative position relationship between the guide slope 14 and the reset slope 20 is the optimal solution obtained through in-depth analysis of the movement trajectory of the connecting rod 8, which ensures the stability of the device under various operating conditions and the smoothness of the unlocking operation.

[0083] The reset tool 21 adopts the form of an unlocking rod, which fully considers ergonomics and actual operation requirements. One end of the unlocking rod is equipped with a matching unlocking slope for the reset slope 20 to ensure maximum unlocking effect when force is applied. The other end extends to the outside of the base 2 and is equipped with an easy-to-grip operating handle. This design allows the operator to easily apply force to the unlocking rod through the operating handle without special tools or skills, quickly pushes the locking plate 11 to move using the lever principle, and then makes the locking rod 12 exit the locking groove 17, completing the unlocking operation. The entire unlocking process is simple and fast, greatly improving work efficiency and reducing labor intensity of the operator.

[0084] The presence of the reset mechanism adds an important safety guarantee to the device. In emergency situations such as equipment failure or failure of the conventional unlocking method, the reset mechanism can quickly start and provide a reliable unlocking solution, which not only ensures timely maintenance and replacement of the device, but also avoids potential safety risks caused by long-term unlocking failure of the device. The backup function of the reset mechanism has immeasurable value for improving the safety and stability of the entire system.

[0085] The design of the reset mechanism fully embodies the concept of user-friendliness. The introduction of the operating handle makes the unlocking operation more intuitive and convenient, even for non-professionals.

[0086] The mounting mechanism is arranged in at least two groups, and the two groups of mounting mechanisms are arranged at intervals.

[0087] The arrangement of at least two groups of mounting mechanisms means that there are multiple connection points between the circuit breaker and the base 2, which collectively bear the weight of the circuit breaker body and various forces generated during operation, thereby improving the stability and reliability of the connection.

[0088] By arranging multiple groups of mounting mechanisms at intervals, it can be ensured that these connection points are evenly distributed throughout the circuit breaker, and this dispersed layout helps to prevent connection failure or damage due to excessive stress on a single point.

[0089] When the circuit breaker is subjected to external forces such as electromagnetic force generated by short-circuit current, mechanical vibration or external impact, multiple groups of mounting mechanisms can more evenly distribute these pressures, and this dispersion helps to reduce the peak pressure on each connection point, thereby reducing the risk of connection failure.

[0090] The arrangement of multiple groups of mounting mechanisms also enhances the overall stability of the circuit breaker, which is less likely to sway or shift when subjected to external forces, thereby ensuring its normal operation and safety.

[0091] In practical applications, the dispersed layout design of multiple groups of mounting mechanisms has been widely verified and applied, which not only improves the connection stability and reliability of the permanent magnet circuit breaker, but also enhances its impact resistance and stability. For example, the use of permanent magnet circuit breakers with multiple groups of mounting mechanisms in key positions in the power system can ensure their normal operation and safety in various harsh environments.

[0092] The high-voltage solid-sealed pole vacuum permanent magnet circuit breaker of the present application ingeniously incorporates an automatic locking mechanism in the design of the mounting mechanism. The core of this mechanism is the locking assembly, which is installed in the placement cavity 5 of the base 2. When the mounting rod 3 of the permanent magnet circuit breaker body 1 is inserted into the mounting cavity 4 of the base 2, the connecting rod 8 and the locking mechanism in the locking assembly will automatically respond. Specifically, one end of the connecting rod 8 extends into the placement box 9 and is embedded with a gravity ball 16. Under the action of its own gravity, the gravity ball 16 will drive one end of the connecting rod 8 to descend along a specific mounting slot 10. This action in turn pushes the locking plate 11 in the locking mechanism to move through the other end of the connecting rod 8, causing the locking rod 12 to extend and firmly lock into the locking slot 17 on the mounting rod 3, thereby achieving automatic locking between the permanent magnet circuit breaker body 1 and the base 2. The entire process does not require manual intervention, greatly improving installation efficiency and accuracy.

[0093] In order to meet the unlocking needs in different scenarios, the application provides two convenient unlocking methods. First, the gravity ball 16 can be pulled up by the pull rope 18, so that the connecting rod 8 and the locking mechanism can be easily reset. One end of the pull rope 18 is connected to the upper surface of the gravity ball 16, and the other end extends to the outside of the base 2 and can be fixed on the fixed rod on the outer surface of the base 2. When unlocking is needed, the pull rope 18 is pulled up, the gravity ball 16 drives the connecting rod 8 to move upwards, thereby resetting the connecting rod 8 and the locking mechanism, and unlocking the mounting rod 3. In addition, when the pull rope 18 cannot be used for some reason, the reset mechanism can also be used for unlocking. The reset mechanism includes a reset slope 20 and a reset tool 21 such as an unlocking rod. By operating the reset tool 21, force can be easily applied to the reset slope 20 of the locking plate 11, so that the locking plate 11 can move against the elastic force of the locking spring 13, thereby driving the locking rod 12 to exit the locking groove 17 and completing the unlocking operation. This design not only increases the flexibility of the device, but also improves its reliability.

[0094] In the design of the mounting mechanism, the compactness of the structure is fully considered. The shaft 7, the connecting rod 8, the placing box 9, the locking mechanism and other components are cleverly arranged in the placing cavity 5 to form a compact and orderly whole. This design not only saves valuable space resources, but also improves the overall stability and durability of the device. The close cooperation and precise movement between the components ensure the accuracy and reliability of the locking and unlocking operations.

[0095] In order to fully utilize the space resources inside the device, the placing cavity 5 is connected to the mounting cavity 4 through the connecting groove 6. This design allows the locking rod 12 to easily extend into the connecting groove 6 and cooperate with the locking groove 17 on the mounting rod 3. At the same time, the design of the connecting groove 6 also considers the movement trajectory and locking force of the locking rod 12, ensuring the stability and reliability of the locking operation. This space utilization maximization design not only improves the space utilization rate of the device, but also makes the overall structure of the device more simple and clear.

[0096] The design of the locking spring 13 and the guide slope 14 in the locking mechanism is the key to ensuring the safe and reliable operation of the device. The locking spring 13 provides sufficient locking force, so that the locking rod 12 can firmly lock the mounting rod 3, preventing the device from loosening or falling off during operation. The design of the guide slope 14 ensures that the connecting rod 8 can smoothly push the locking plate 11 to move when moving, thereby realizing the locking and unlocking operations. In addition, the existence of the reset mechanism also provides an additional safety guarantee for the device. In an emergency, the device can be quickly unlocked through the reset mechanism to avoid possible safety accidents.

[0097] In order to prevent possible failure, the application is provided with a limiting block 19 below the arc surface 15, which is fixed on the connecting rod 8 and used to limit the maximum falling distance of the arc surface 15, so that even if the gravity ball 16 falls excessively due to some reason, it will not cause damage to the connecting rod 8 or failure of the locking mechanism. This design not only improves the durability and reliability of the equipment, but also reduces the maintenance cost and use risk of the equipment.

[0098] The design of the reset mechanism makes the maintenance of the equipment more efficient. When the equipment needs maintenance or replacement, if it cannot be unlocked by pulling the rope 18, it can be unlocked by simply operating the handle connected to the reset tool 21 such as the unlocking rod. By applying force to the handle, the unlocking rod can be easily pushed to move, thereby unlocking the equipment. This design greatly simplifies the maintenance process of the equipment and improves the maintenance efficiency.

[0099] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-voltage solid-seal pole vacuum permanent magnet circuit breaker, characterized in that, comprising a permanent magnet circuit breaker body; a base arranged at the lower end of the permanent magnet circuit breaker body; a mounting mechanism arranged between the permanent magnet circuit breaker body and the base for fixedly connecting the permanent magnet circuit breaker body and the base; wherein the mounting mechanism comprises a mounting rod arranged at the lower end of the permanent magnet circuit breaker body, and a mounting cavity arranged on the base, one side of the mounting cavity is provided with a placing cavity, the placing cavity and the mounting cavity are communicated through a connecting groove, a locking assembly capable of achieving automatic locking is arranged in the placing cavity, the locking assembly can automatically lock the mounting rod in response to the action of the mounting rod inserted into the mounting cavity, thereby fixing the permanent magnet circuit breaker body and the base; further comprising: a rotating shaft arranged in the placing cavity; a connecting rod rotatably arranged on the rotating shaft, one end of the connecting rod extends into the placing box, and the other end interacts with the locking mechanism; a placing box located in the placing cavity, and a mounting slot is opened on the side wall of the placing box towards the connecting groove for the connecting rod to pass through; the locking mechanism comprises a locking plate, a locking rod and a locking spring, the locking plate is connected to the right side wall of the placing cavity through the locking spring, the locking plate is provided with a guide inclined surface, one end of the locking rod is connected to the locking plate, and the other end can extend into the connecting groove and cooperate with the locking slot on the mounting rod to achieve locking; the end of the connecting rod extending into the placing box is provided with an arc surface, a gravity ball is embedded in the arc surface, the guide inclined surface is arranged in a structure that the width increases from bottom to top and left to right, the gravity of the gravity ball drives the arc surface to fall, thereby driving the left end of the connecting rod to move downward along the mounting slot, driving the right end of the connecting rod to move upward, further pressing the guide inclined surface of the locking plate, thereby driving the upper end of the locking plate to move towards the right side wall of the placing cavity, further driving the locking rod to extend out of the connecting groove and insert into the locking slot, thereby fixing the mounting rod.

2. The high-voltage solid-seal pole vacuum permanent magnet circuit breaker according to claim 1, characterized in that, the upper surface of the gravity ball is provided with one end of a pull rope, the other end of the pull rope extends to the outside of the base through the upper end of the placing box and the upper end side wall of the placing cavity, the outer surface of the base is provided with a fixing rod, the pull rope is tied on the fixing rod, loosening the pull rope, the gravity ball moves downward, thereby fixing the permanent magnet circuit breaker body and the base.

3. The high-voltage solid-seal pole vacuum permanent magnet circuit breaker according to claim 1, characterized in that, a limiting block is further arranged below the arc surface, the limiting block is fixed on the connecting rod, for limiting the maximum falling distance of the arc surface, preventing the gravity ball from falling excessively and causing damage to the connecting rod or failure of the locking mechanism.

4. The high-voltage solid-seal pole vacuum permanent magnet circuit breaker according to claim 2, characterized in that, The locking mechanism is provided with a reset mechanism. When the gravity ball cannot unlock the locking rod by pulling the pull rope, the reset mechanism is used for unlocking. The reset mechanism comprises a reset slope and a reset tool. The reset slope is arranged on the locking plate and below the guide slope. The inclination direction of the reset slope is opposite to that of the guide slope. The reset slope is arranged close to the right side wall of the locking plate. The guide slope is arranged close to the left side wall of the locking plate, so that the interference between the connecting rod and the reset tool is avoided. When unlocking is needed, the reset tool is used to exert force on the reset slope of the locking plate, so that the locking plate is moved to the left side wall of the placement cavity against the elastic force of the locking spring. Then the locking rod is withdrawn from the locking groove, the mounting rod is unlocked, the permanent magnetic circuit breaker body is conveniently disassembled, the reset tool is an unlocking rod, one end of the unlocking rod is provided with an unlocking slope matched with the reset slope, the other end penetrates through the upper end side wall of the placement cavity and extends to the outside of the base. The unlocking rod outside the base is provided with an operating handle. When unlocking, the unlocking slope of the unlocking rod is attached to the reset slope and downward pressure is exerted. The movement of the locking plate is easily realized by the lever principle, and the unlocking efficiency is improved.

5. The high-voltage solid-seal pole vacuum permanent magnetic circuit breaker of claim 1, wherein The mounting mechanism is arranged in at least two groups, and the two groups of mounting mechanisms are arranged at intervals.

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