High-voltage solid-sealed polar pole vacuum permanent magnet circuit breaker

Abstract

The invention discloses a vacuum permanent magnet circuit breaker for a high-voltage solid-sealed polar pole. The vacuum permanent magnet circuit breaker comprises a permanent magnet circuit breaker body, the base is arranged at the lower end of the permanent magnet circuit breaker body; the mounting mechanism is arranged between the permanent magnet circuit breaker body and the base and is used for fixedly connecting the permanent magnet circuit breaker with 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 placement cavity, the placement cavity is communicated with the mounting cavity through a connecting groove, and a locking assembly capable of realizing automatic locking is configured in the placement cavity. The locking assembly can automatically lock the mounting rod in response to the action that the mounting rod is inserted into the mounting cavity. According to the permanent magnet circuit breaker, stable connection between the permanent magnet circuit breaker body and the base is ensured through close fit of the mounting rod and the mounting cavity and an automatic locking function of the locking assembly, and the circuit breaker can keep a stable working state even in a high-voltage environment and cannot be loosened due to vibration or external force.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum permanent magnet circuit breakers, in particular to a high-voltage solid-sealed pole vacuum permanent magnet circuit breaker. Background Art

[0002] High-voltage solid-sealed pole vacuum permanent magnet circuit breakers are one of the most important equipment in the power system, and the stability and reliability of their performance are directly related to the safe operation of the power system. During the installation process of traditional high-voltage solid-sealed pole vacuum permanent magnet circuit breakers, bolt connections or other mechanical fixing methods are usually used to fix the circuit breaker body to the base. However, these traditional fixing methods have many shortcomings, such as the cumbersome and time-consuming installation process, and the connection is easily loosened due to vibration or external force during use, which in turn affects the stability and reliability of the circuit breaker. Therefore, there is an urgent need for a new type of high-voltage solid-sealed pole vacuum permanent magnet circuit breaker and its installation mechanism 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 of the invention

[0003] The purpose of the present invention is to solve the above technical problems, thereby providing a high voltage sealed pole vacuum permanent magnet circuit breaker; In order to solve the above technical problems, the present invention provides the following technical solutions: The present invention provides a high voltage sealed pole vacuum permanent magnet circuit breaker. Permanent magnetic circuit breaker body; A base arranged at the lower end of the permanent magnetic circuit breaker body; A mounting mechanism disposed between the permanent magnetic circuit breaker body and the base, used for fixedly connecting the permanent magnetic circuit breaker to the base; Wherein, the mounting mechanism includes a mounting rod arranged at the lower end of the permanent magnetic circuit breaker body, and a mounting cavity arranged on the base, a placement cavity is arranged on one side of the mounting cavity, the placement cavity is communicated with the mounting cavity through a connecting groove, and a locking assembly capable of automatic locking is arranged in the placement cavity, and the locking assembly can automatically lock the mounting rod in response to the action of the mounting rod being inserted into the mounting cavity, thereby fixing the permanent magnetic circuit breaker body and the base.

[0004] Optionally, the locking assembly includes: A rotating shaft is arranged in the placement cavity; A connecting rod is rotatably disposed on the rotating shaft, one end of which extends into the placement box and the other end interacts with the locking mechanism; A placement box is located in the placement cavity, and the side walls thereof facing the connection groove are provided with installation grooves at the upper and lower sides for the connecting rod to pass through; The locking mechanism includes a locking plate, a locking rod and a locking spring. The locking plate is connected to the right side wall of the placement cavity through the locking spring. A guide slope is provided 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 mounting rod to achieve locking.

[0005] Optionally, an arcuate surface is provided at the end of the connecting rod extending into the placement box, a gravity ball is embedded in the arcuate surface, and the guide inclined surface is arranged to increase in width from bottom to top, and the gravity of the gravity ball itself drives the arcuate surface to fall, thereby driving the left end of the connecting rod to move downward along the installation groove, thereby driving the right end of the connecting rod to move upward, and then squeezing the guide inclined surface of the locking plate, thereby driving the upper end of the locking plate to move toward the right side wall of the placement cavity, and then driving the locking rod to extend out of the connecting groove and be inserted into the locking groove, thereby fixing the installation rod.

[0006] Optionally, one end of a pull rope is provided on the upper surface of the gravity ball, and the other end of the pull rope passes through the upper end of the placement box and the upper end side wall of the placement cavity and extends to the outside of the base. A fixing rod is provided on the outer surface of the base, and the pull rope is tied to the fixing rod. When the pull rope is loosened, the gravity ball moves downward, thereby fixing the permanent magnetic circuit breaker body and the base.

[0007] Optionally, a limit block is further provided below the arc surface, and the limit block is fixed on the connecting rod to limit the maximum falling distance of the arc surface to prevent the connecting rod from being damaged or the locking mechanism from failing due to excessive falling of the gravity ball.

[0008] Optionally, a reset mechanism is provided on the locking mechanism. When the locking rod cannot be unlocked by pulling up the gravity ball by a pull rope, the locking rod is unlocked by the reset mechanism. The reset mechanism includes a reset slope and a reset tool. The locking plate is provided with the reset slope, which is arranged below the guide slope, and the inclination direction of the reset slope is opposite to that of the guide slope. The reset slope is arranged against the right side wall of the locking plate, and the guide slope is arranged against the left side wall of the locking plate, so as to avoid interference between the connecting rod and the reset tool. When unlocking is required, the reset tool applies force to the reset inclined surface of the locking plate, so that the locking plate overcomes the elastic force of the locking spring and moves toward the left wall of the placement cavity, thereby driving the locking rod to exit the locking groove, unlocking the mounting rod, and facilitating the 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 inclined surface adapted to the reset inclined surface, and the other end passes through the upper side wall of the placement cavity and extends to the outside of the base. An operating handle is provided on the unlocking rod located outside the base; when unlocking, the unlocking inclined surface of the unlocking rod is in contact with the reset inclined surface, and downward pressure is applied, so that the movement of the locking plate is easily achieved through the lever principle, thereby improving the unlocking efficiency.

[0009] Optionally, the installation mechanisms are arranged in at least two groups, and the two groups of installation mechanisms are arranged at intervals.

[0010] In summary, the present invention has the following beneficial effects: The high-voltage sealed pole vacuum permanent magnetic circuit breaker of the present application cleverly incorporates an automatic locking mechanism in the design of the installation mechanism. The core of this mechanism lies in the locking assembly, which is installed in the placement cavity of the base. When the installation rod of the permanent magnetic circuit breaker body is inserted into the installation 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 will drive one end of the connecting rod to move down along a specific installation groove. This action then pushes the locking plate in the locking mechanism to move through the other end of the connecting rod, so that the locking rod extends out and is firmly stuck in the locking groove on the installation rod, thereby realizing automatic locking between the permanent magnetic circuit breaker body and the base. The entire process does not require manual intervention, which greatly improves installation efficiency and accuracy. In order to meet the unlocking needs in different scenarios, the present application provides two convenient unlocking methods. First, by pulling up the gravity ball with a pull rope, the connecting rod and the locking mechanism can be easily reset. One end of the pull 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 to the fixed rod on the outer surface of the base. When unlocking is required, just pull the pull rope upward, the gravity ball will drive the connecting rod upward, thereby driving the connecting rod and the locking mechanism to reset, thereby unlocking the mounting rod. In addition, when the pull rope cannot be used for some reason, it can also be unlocked through the 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 overcomes the elastic force of the locking spring and moves, thereby driving the locking rod to exit the locking groove to complete the unlocking operation. This design not only increases the flexibility of the device, but also improves its reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the permanent magnetic circuit breaker body of the present invention.

[0012] Figure 2 It is a cross-sectional view of the base structure of the present invention.

[0013] Figure 3 This is an enlarged view of the locking assembly structure of the present invention.

[0014] Figure 4 The present invention is a diagram of the installation and use status of a utility pole.

[0015] Figure 5 It is a side sectional view of the permanent magnetic circuit breaker body structure of the present invention.

[0016] Figure 6 It is a side view of the locking plate structure of the present invention.

[0017] Figure 7 This is a front view of the locking plate structure of the present invention.

[0018] Figure 8 This is a side view of the box structure of the present invention.

[0019] Explanation of the accompanying 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 ramp, 15-arc surface, 16-gravity ball, 17-locking groove, 18-pull rope, 19-limiting block, 20-reset ramp, 21-reset tool. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the new embodiments of the system. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example: like Figure 1-Figure 8 As shown, the present invention provides a high voltage sealed pole vacuum permanent magnet circuit breaker, Permanent magnetic circuit breaker body 1; A base 2 disposed at the lower end of the permanent magnetic circuit breaker body 1; A mounting mechanism disposed between the permanent magnetic circuit breaker body 1 and the base 2, and used for fixedly connecting the permanent magnetic circuit breaker to the base 2; Wherein, the mounting mechanism includes a mounting rod 3 arranged at the lower end of the permanent magnetic circuit breaker body 1, and a mounting cavity 4 arranged on the base 2, a placement cavity 5 is arranged on one side of the mounting cavity 4, and the placement cavity 5 is connected to the mounting cavity 4 through a connecting groove 6. A locking assembly capable of automatic locking is arranged in the placement cavity 5, and the locking assembly can automatically lock the mounting rod 3 in response to the action of the mounting rod 3 being inserted into the mounting cavity 4, thereby fixing the permanent magnetic circuit breaker body 1 and the base 2.

[0022] The permanent magnetic circuit breaker body 1 is the core part of the circuit breaker, which is 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 uses the magnetic force of the permanent magnet to maintain the closed or open state of the contacts, and has the advantages of reliable operation and long life. The base 2 is the basic structure supporting the permanent magnetic circuit breaker body 1, and is designed to be a sturdy and stable structure to ensure that the circuit breaker can be firmly installed in 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. It not only ensures a firm connection between the two, but also facilitates the installation and disassembly of the circuit breaker.

[0023] The mounting rod 3 is arranged at the lower end of the permanent magnetic circuit breaker body 1, and is a long strip structure, which is used to be inserted into the mounting cavity 4 on the base 2. The mounting cavity 4 is located on the base 2, and is a cavity matching the mounting rod 3, and is used to receive and fix the mounting rod 3. The design of the mounting cavity 4 ensures that the mounting rod 3 can be accurately inserted and fixed at the predetermined position.

[0024] The locking assembly is a key part of the installation mechanism, and is responsible for automatically locking the installation rod 3 after it is inserted into the installation cavity 4, thereby ensuring a stable connection between the permanent magnetic circuit breaker body 1 and the base 2.

[0025] The locking assembly is designed with an automatic locking mechanism. When the mounting rod 3 is inserted into the mounting cavity 4 to a certain depth, the locking assembly will automatically respond and lock the mounting rod 3 without manual operation or additional tools. This design greatly simplifies the installation process and improves installation efficiency.

[0026] The close fit between the mounting rod 3 and the mounting cavity 4 and the automatic locking function of the locking assembly ensure a firm connection between the permanent magnetic circuit breaker body 1 and the base 2. Even in a high-voltage environment, the circuit breaker can maintain a stable working state and will not loosen due to vibration or external force.

[0027] A stable connection not only improves the stability of the circuit breaker, but also enhances its safety. When a fault occurs in the power system, the circuit breaker can quickly and reliably cut off the current, prevent the fault from expanding, and protect the safety of the power grid and equipment.

[0028] The locking assembly comprises: A rotating shaft 7 is arranged in the placement cavity 5; A connecting rod 8 is rotatably disposed on the rotating shaft 7, one end of which extends into the placement box 9 and the other end interacts with the locking mechanism; A placement box 9 is located in the placement cavity 5, and the side walls thereof facing the connecting groove 6 are provided with installation grooves 10 at the upper and lower sides for the connecting rod 8 to pass through; The locking mechanism includes 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. A guide slope 14 is provided on the locking plate 11. 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 achieve locking.

[0029] The rotating shaft 7 is a rotating component in the locking assembly and is fixed in the placement cavity 5 to provide support and an axis for the rotation of the connecting rod 8. The design of the rotating shaft 7 ensures that the connecting rod 8 can perform smooth rotational motion thereon, thereby achieving precise control of the locking mechanism.

[0030] The connecting rod 8 is a key component connecting the rotating shaft 7 and the locking mechanism. One end of the connecting rod 8 is rotatably arranged on the rotating shaft 7, and the other end interacts with the locking mechanism.

[0031] The rotational movement of the connecting rod 8 is the key to the automatic locking function of the locking assembly, which can convert the rotational movement of the connecting rod 8 into the locking movement of the locking mechanism.

[0032] The placement box 9 is an independent space located in the placement cavity 5 and is used to accommodate some components of the connecting rod 8 .

[0033] The design of the placement box 9 ensures that the connecting rod 8 and the locking mechanism can move in an orderly and stable manner inside it, while avoiding direct contact with the external environment, thereby improving the durability of the components.

[0034] A mounting groove 10 is provided on the side wall 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.

[0035] The locking mechanism is the core part of the locking assembly, which consists of a locking plate 11, a locking rod 12 and a locking spring 13.

[0036] The locking plate 11 is the main moving part 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.

[0037] The locking plate 11 is provided with a guide slope 14 for interacting with the end of the connecting rod 8 to convert the rotational motion of the connecting rod 8 into the translational motion of the locking plate 11 .

[0038] 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 achieve the locking function.

[0039] The locking spring 13 provides the elastic force required for the locking plate 11 to move, ensuring that the locking mechanism can automatically and reliably lock the mounting rod 3 .

[0040] Due to the presence of the locking spring 13, the locking plate 11 will maintain a stable locking state after being locked, and will not be easily loosened even if the mounting rod 3 is subjected to external force. 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 operations or adjustments.

[0041] The end of the connecting rod 8 extending into the placement box 9 is provided with an arc surface 15, and a gravity ball 16 is embedded in the arc surface 15. The guide slope 14 is configured to increase the width from bottom to top in sequence. 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 move downward along the installation groove 10, thereby driving the right end of the connecting rod 8 to move upward, and then squeezing the guide slope 14 of the locking plate 11, thereby driving the upper end of the locking plate 11 to move toward the right side wall of the placement cavity 5, and then driving the locking rod 12 to extend out of the connecting groove 6 and be inserted into the locking groove 17, thereby fixing the installation rod 3.

[0042] The present application designs a curved surface 15 at the end of the connecting rod 8 extending into the placement box 9. This curved surface 15 not only matches the movement trajectory of the connecting rod 8, but more importantly, a gravity ball 16 is embedded inside it. The gravity ball 16, as a constant source of power in nature, can continuously and stably play its role without any external power or human intervention. When the device is in an unlocked state, the gravity ball 16 will naturally pull the curved surface 15 downward due to its own gravity. This movement process is smooth and continuous, and no additional energy input is required, thereby realizing the automatic locking function of the device. This design greatly improves the user experience, makes the locking operation easy and convenient, and also significantly improves the degree of automation of the device.

[0043] As the gravity ball 16 drives the arc surface 15 to fall, the left end of the connecting rod 8 begins to slowly descend along the preset installation groove 10. This movement is precise and is jointly guaranteed 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 accordingly, forming a stable lever effect. This movement not only enables the connecting rod 8 to stably squeeze the guide slope 14 of the locking plate 11, but also, through the design of the guide slope 14, converts the squeezing force into the power for the locking plate 11 to move toward the right side wall of the placement cavity 5. The upper end of the locking plate 11 is gradually approached and finally pressed against the right side wall of the placement cavity 5 under the push of the connecting rod 8, and the locking rod 12 accurately extends out of the connecting groove 6 in this process and is firmly inserted into the locking groove 17. This series of actions is coherent and stable, ensuring the reliability and durability of the locking effect.

[0044] The design of the guide slope 14 not only takes into account the stability during the locking process, but also fully considers the adaptability of the device. The guide slope 14 is deliberately set to a structure with increasing width from left to right from bottom to top. This design allows the locking plate 11 to slide easily along the guide slope 14 when squeezed by the connecting rod 8 without being hindered by slight differences in size or installation. This structural tolerance allows the device to accommodate dimensional errors and installation deviations within a certain range, thereby improving the reliability and durability of the device. Whether it is dimensional fluctuations during the production process or slight adjustments during the installation process, it will not affect the locking effect of the device.

[0045] The structure of the device is simple and clear, and is mainly composed of several core components such as a connecting rod 8, a gravity ball 16, a locking plate 11, and a locking rod 12. These components are not only simple in shape and easy to process, but also the connection and coordination between them 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 require 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, with its simple and efficient design, realizes multiple functions such as automatic locking, stability and reliability, and strong adaptability, and has broad application prospects and market value.

[0046] One end of a pull rope 18 is provided on the upper surface of the gravity ball 16, and the other end of the pull rope 18 passes through the upper end of the placement box 9 and the upper end side wall of the placement cavity 5 and extends to the outside of the base 2. A fixing rod is provided on the outer surface of the base 2, and the pull rope 18 is tied to the fixing rod. When the pull rope 18 is loosened, the gravity ball 16 moves downward, thereby fixing the permanent magnetic circuit breaker body 1 and the base 2.

[0047] By arranging one end of a 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 tying it to the fixing 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 magnetic circuit breaker body 1 and the base 2, it is only necessary to loosen the pull rope 18, and the gravity ball 16 will go down under the action of its own gravity, and then be locked through the connecting rod 8 mechanism. This design makes the operation process simple and fast, and improves work efficiency.

[0048] When the gravity ball 16 moves downward, it will drive the connecting rod 8 to move, and finally the locking rod 12 will extend out of the connecting groove 6 and be inserted into the locking groove 17, thereby firmly fixing the permanent magnetic 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 magnetic circuit breaker body 1 on the base 2.

[0049] When the permanent magnetic circuit breaker body 1 needs to be unlocked, 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 can be released through the connecting rod 8 mechanism. This unlocking method is also simple and convenient, and does not require additional tools or equipment.

[0050] Through the cooperation of the pull rope 18 and the gravity ball 16, remote control and fixation can be achieved, avoiding the operator from directly contacting the live parts of the permanent magnetic circuit breaker body 1 or the base 2, thereby improving the safety of operation.

[0051] The device is mainly composed of simple components such as a pull rope 18, a gravity ball 16, a connecting rod 8 mechanism, etc. The structure is simple and clear, and it is easy to process and assemble. At the same time, due to the small number of components and simple connection relationship, it is relatively easy to maintain, which reduces the maintenance cost of the device.

[0052] A limit block 19 is also provided below the arc surface 15 , and the limit block 19 is fixed on the connecting rod 8 to limit the maximum falling distance of the arc surface 15 , so as to prevent the connecting rod 8 from being damaged or the locking mechanism from failing due to excessive falling of the gravity ball 16 .

[0053] The main function of the limit block 19 is to limit the maximum falling distance of the curved surface 15. Under the action of the gravity ball 16, the curved surface 15 will drive the connecting rod 8 to move. If there is no restriction of the limit block 19, the gravity ball 16 will produce excessive impact force on the connecting rod 8 due to excessive falling, and even cause the connecting rod 8 to bend, break, and other damages. The existence of the limit block 19 effectively avoids this situation. It can stop the curved surface 15 from continuing to fall in time when it falls to a certain position, thereby protecting the connecting rod 8 mechanism from damage.

[0054] The normal operation of the locking mechanism depends on the precise movement of the connecting rod 8. If the connecting rod 8 is damaged due to excessive falling, the locking mechanism will not be able to work properly, which will cause the permanent magnetic circuit breaker body 1 and the base 2 to be loosely fixed or even completely fail. The limit block 19 ensures the normal movement range of the connecting rod 8 by limiting the falling distance of the arc surface 15, thereby preventing the failure of the locking mechanism.

[0055] The design of the limit 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., and ensures the firm fixation between the permanent magnetic circuit breaker body 1 and the base 2. This stability is crucial to the safe operation of the power system, because the permanent magnetic circuit breaker is an important protective device in the power system, and its reliability and stability directly affect the safe operation of the entire system.

[0056] The design of the limit block 19 is also an optimization of the entire device design. It takes into account the extreme conditions during the falling process of the gravity ball 16 and effectively solves this problem through a simple structural limit block 19. This design not only improves the durability of the device, but also reduces manufacturing costs and maintenance difficulties.

[0057] The locking mechanism is provided with a reset mechanism. When the locking rod 12 cannot be unlocked by pulling up the gravity ball 16 through the pull rope 18, the reset mechanism is used to unlock the locking rod. The reset mechanism includes a reset slope 20 and a reset tool 21. The locking plate 11 is provided with the reset slope 20. The reset slope 20 is arranged below the guide slope 14, and the inclination direction of the reset slope 20 is opposite to the inclination direction of the guide slope 14. The reset slope 20 is arranged against the right side wall of the locking plate 11, and the guide slope 14 is arranged against the left side wall of the locking plate 11, so as to avoid interference between the connecting rod 8 and the reset tool 21. When unlocking is required, force is applied to the reset slope 20 of the locking plate 11 through the reset tool 21, so that the locking plate 11 overcomes the elastic force of the locking spring 13 and moves toward the left wall of the placement cavity 5, thereby driving the locking rod 12 to withdraw from the locking groove 17, unlocking the mounting rod 3, and facilitating the disassembly of the permanent magnetic circuit breaker body 1. The reset tool 21 is an unlocking rod, one end of which is provided with an unlocking slope matched with the reset slope 20, and the other end passes through the upper end side wall of the placement cavity 5 and extends to the outside of the base 2. An operating handle is provided 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 downward pressure is applied, so that the movement of the locking plate 11 is easily realized through the lever principle, thereby improving the unlocking efficiency.

[0058] In a complex industrial environment, the equipment may 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 may make it impossible to unlock the locking rod 12 by pulling the gravity ball 16 by the pull rope 18 in a conventional manner. At this time, the reset mechanism is particularly important as a backup unlocking solution. It not only provides an additional unlocking method, but also ensures that the equipment can still maintain its operability and maintainability when facing special circumstances. This design greatly improves the flexibility and overall reliability of the device, so that the permanent magnetic circuit breaker body 1 can be smoothly unlocked and disassembled under any circumstances, thereby reducing the downtime caused by equipment failure and improving production efficiency.

[0059] The reset slope 20 is arranged below the locking plate 11, forming an opposite inclination with the guide slope 14, and is adjacent to the right side 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 the 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 an in-depth analysis of the movement trajectory of the connecting rod 8. It ensures the stability of the device under various operating conditions and the smoothness of the unlocking operation.

[0060] The reset tool 21 is in the form of an unlocking rod, and its design fully considers ergonomics and practical operation requirements. One end of the unlocking rod is equipped with an unlocking slope that matches the reset slope 20 to ensure that the maximum unlocking effect can be achieved 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, and use the lever principle to quickly push the locking plate 11 to move, thereby allowing the locking rod 12 to exit the locking groove 17 to complete the unlocking operation. The entire unlocking process is simple and fast, greatly improving work efficiency, while also reducing the labor intensity of operators.

[0061] The presence of the reset mechanism adds an important layer of safety protection to the device. In emergency situations, such as equipment failure or failure of conventional unlocking methods, the reset mechanism can quickly start and provide a reliable unlocking solution. This not only ensures timely maintenance and replacement of the equipment, but also avoids potential safety risks caused by the inability to unlock the equipment for a long time. This backup function of the reset mechanism is of immeasurable value in improving the safety and stability of the entire system.

[0062] 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, and even non-professionals can easily get started.

[0063] The installation mechanisms are arranged in at least two groups, and the two groups of installation mechanisms are arranged at intervals.

[0064] Providing at least two sets of mounting mechanisms means that there are multiple connection points between the circuit breaker and the base 2, and these connection points jointly bear the weight of the circuit breaker body and various forces generated during operation, thereby improving the stability and reliability of the connection.

[0065] By arranging multiple groups of mounting mechanisms at intervals, it is possible to ensure that these connection points are evenly distributed throughout the circuit breaker. This dispersed layout helps prevent connection failure or damage due to excessive force on a single point.

[0066] When the circuit breaker is subjected to external forces, such as electromagnetic force generated by short-circuit current, mechanical vibration or external impact, multiple sets of mounting mechanisms can disperse these pressures more evenly. This dispersion effect helps to reduce the pressure peak at each connection point, thereby reducing the risk of connection failure.

[0067] The setting of multiple sets of installation mechanisms also enhances the overall stability of the circuit breaker. When subjected to external force, the circuit breaker is not prone to shaking or shifting, thereby ensuring its normal operation and safety.

[0068] In practical applications, the decentralized layout design of multiple sets of mounting mechanisms has been widely verified and applied. This design not only improves the connection stability and reliability of permanent magnetic circuit breakers, but also enhances their impact resistance and stability. For example, using permanent magnetic circuit breakers with multiple sets of mounting mechanisms in key positions in the power system can ensure their normal operation and safety in various harsh environments.

[0069] The high-voltage sealed pole vacuum permanent magnetic circuit breaker of the present application cleverly incorporates an automatic locking mechanism in the design of the installation mechanism. The core of this mechanism lies in the locking assembly, which is installed in the placement cavity 5 of the base 2. When the mounting rod 3 of the permanent magnetic 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 move downward along a specific installation groove 10. This action then pushes the locking plate 11 in the locking mechanism to move through the other end of the connecting rod 8, so that the locking rod 12 extends out and is firmly stuck in the locking groove 17 on the mounting rod 3, thereby realizing automatic locking between the permanent magnetic circuit breaker body 1 and the base 2. The entire process does not require manual intervention, which greatly improves the installation efficiency and accuracy.

[0070] In order to meet the unlocking needs in different scenarios, the present application provides two convenient unlocking methods. First, by pulling up the gravity ball 16 by the pull rope 18, 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 to the fixed rod on the outer surface of the base 2. When unlocking is required, only the pull rope 18 needs to be pulled up, and the gravity ball 16 will drive the connecting rod 8 upward, thereby driving the connecting rod 8 and the locking mechanism to reset, thereby unlocking the mounting rod 3. In addition, when the pull rope 18 cannot be used for some reason, it can also be unlocked through the reset mechanism. 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 overcomes the elastic force of the locking spring 13 and moves, thereby driving the locking rod 12 to exit the locking groove 17 to complete the unlocking operation. This design not only increases the flexibility of the device, but also improves its reliability.

[0071] In the design of the installation mechanism, the present application fully considers the compactness of the structure. The various components such as the rotating shaft 7, the connecting rod 8, the placement box 9, the locking mechanism, etc. are cleverly arranged in the placement cavity 5 to form a compact and orderly whole. This design not only saves precious space resources, but also improves the overall stability and durability of the equipment. The close fit and precise movement between the various components ensure the accuracy and reliability of the locking and unlocking operations.

[0072] In order to make full use of the space resources inside the equipment, the present application connects the placement cavity 5 with the installation cavity 4 through the connecting groove 6. This design allows the locking rod 12 to be easily inserted into the connecting groove 6 and cooperate with the locking groove 17 on the installation rod 3. At the same time, the design of the connecting groove 6 also takes into account the movement trajectory of the locking rod 12 and the size of the locking force, ensuring the stability and reliability of the locking operation. This design that maximizes space utilization not only improves the space utilization rate of the equipment, but also makes the overall structure of the equipment more concise and clear.

[0073] 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 equipment. The locking spring 13 provides sufficient locking force so that the locking rod 12 can firmly lock the mounting rod 3 to prevent the equipment 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 during movement, thereby realizing locking and unlocking operations. In addition, the presence of the reset mechanism also provides an extra layer of safety for the equipment. In an emergency, the equipment can be quickly unlocked through the reset mechanism to avoid possible safety accidents.

[0074] In order to prevent possible failures, the present application sets a limit block 19 below the curved surface 15, and the limit block 19 is fixed on the connecting rod 8 to limit the maximum falling distance of the curved surface 15. In this way, even if the gravity ball 16 falls excessively for 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.

[0075] The design of the reset mechanism makes the maintenance of the equipment more efficient. When the equipment needs maintenance or replacement, if the equipment cannot be unlocked by pulling the rope 18, it can be unlocked by a simple operating handle. The operating handle is connected to a reset tool 21 such as an unlocking rod. By applying force to the operating 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 maintenance efficiency.

[0076] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high voltage sealed pole vacuum permanent magnet circuit breaker, characterized in that: It includes a permanent magnetic circuit breaker body; A base arranged at the lower end of the permanent magnetic circuit breaker body; A mounting mechanism disposed between the permanent magnetic circuit breaker body and the base, used for fixedly connecting the permanent magnetic circuit breaker to the base; Wherein, the mounting mechanism includes a mounting rod arranged at the lower end of the permanent magnetic circuit breaker body, and a mounting cavity arranged on the base, a placement cavity is arranged on one side of the mounting cavity, the placement cavity is communicated with the mounting cavity through a connecting groove, and a locking assembly capable of automatic locking is arranged in the placement cavity, and the locking assembly can automatically lock the mounting rod in response to the action of the mounting rod being inserted into the mounting cavity, thereby fixing the permanent magnetic circuit breaker body and the base.

2. The high voltage sealed pole vacuum permanent magnet circuit breaker according to claim 1, characterized in that: The locking assembly comprises: A rotating shaft is arranged in the placement cavity; A connecting rod is rotatably disposed on the rotating shaft, one end of which extends into the placement box and the other end interacts with the locking mechanism; A placement box is located in the placement cavity, and the side walls thereof facing the connection groove are provided with installation grooves at the upper and lower sides for the connecting rod to pass through; The locking mechanism includes a locking plate, a locking rod and a locking spring. The locking plate is connected to the right side wall of the placement cavity through the locking spring. A guide slope is provided 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 mounting rod to achieve locking.

3. The high voltage sealed pole vacuum permanent magnet circuit breaker according to claim 2, characterized in that: The end of the connecting rod extending into the placement box is provided with an arcuate surface, a gravity ball is embedded in the arcuate surface, and the guide inclined surface is arranged to increase in width from bottom to top, and the gravity of the gravity ball drives the arcuate surface to fall, thereby driving the left end of the connecting rod to move downward along the installation groove, thereby driving the right end of the connecting rod to move upward, and then squeezing the guide inclined surface of the locking plate, thereby driving the upper end of the locking plate to move toward the right side wall of the placement cavity, and then driving the locking rod to extend out of the connecting groove and be inserted into the locking groove, thereby fixing the installation rod.

4. The high voltage sealed pole vacuum permanent magnet circuit breaker according to claim 3, characterized in that: One end of a pull rope is provided on the upper surface of the gravity ball, and the other end of the pull rope passes through the upper end of the placement box and the upper end side wall of the placement cavity and extends to the outside of the base. A fixing rod is provided on the outer surface of the base, and the pull rope is tied to the fixing rod. When the pull rope is loosened, the gravity ball moves downward, thereby fixing the permanent magnetic circuit breaker body and the base.

5. The high voltage sealed pole vacuum permanent magnet circuit breaker according to claim 3, characterized in that: A limit block is also provided below the arc surface, and the limit block is fixed on the connecting rod to limit the maximum falling distance of the arc surface to prevent the connecting rod from being damaged or the locking mechanism from failing due to excessive falling of the gravity ball.

6. The high voltage sealed pole vacuum permanent magnet circuit breaker according to claim 4, characterized in that: The locking mechanism is provided with a reset mechanism. When the locking rod cannot be unlocked by pulling up the gravity ball with a pull rope, the lock is unlocked by the reset mechanism. The reset mechanism includes a reset slope and a reset tool. The locking plate is provided with the reset slope. The reset slope is arranged below the guide slope, and the inclination direction of the reset slope is opposite to that of the guide slope. The reset slope is arranged against the right side wall of the locking plate, and the guide slope is arranged against the left side wall of the locking plate, so as to avoid interference between the connecting rod and the reset tool. When unlocking is required, the reset tool applies force to the reset inclined surface of the locking plate, so that the locking plate overcomes the elastic force of the locking spring and moves toward the left wall of the placement cavity, thereby driving the locking rod to exit the locking groove, unlocking the mounting rod, and facilitating the 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 inclined surface adapted to the reset inclined surface, and the other end passes through the upper side wall of the placement cavity and extends to the outside of the base. An operating handle is provided on the unlocking rod located outside the base; when unlocking, the unlocking inclined surface of the unlocking rod is in contact with the reset inclined surface, and downward pressure is applied, so that the movement of the locking plate is easily achieved through the lever principle, thereby improving the unlocking efficiency.

7. The high voltage sealed pole vacuum permanent magnet circuit breaker according to claim 2, characterized in that: The installation mechanisms are arranged in at least two groups, and the two groups of installation mechanisms are arranged at intervals.

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