A high-voltage isolating switch for power distribution cabinets

Abstract

The application discloses a high-voltage isolating switch for a power distribution cabinet, which comprises a support seat, a static-end insulation terminal installed on the support seat, and an opening and closing mechanism installed on the static-end insulation terminal, wherein the opening and closing mechanism is externally hinged with a moving-end insulation terminal. After the energization of two electromagnet moving blocks, the electromagnet moving blocks are attracted to cooperate with a lead screw to drive a moving seat to move and compress a spring to store energy. After the completion of energy storage, the energization of the two electromagnet moving blocks is turned off. At this time, the two electromagnet moving blocks are separated from the lead screw under the drive of a rubber seat. When the two electromagnet moving blocks are separated from the lead screw, the compressed spring releases the elasticity. After the elasticity is released, the moving seat and a lever are pushed to move quickly, so that the lever quickly drives a driving plate, the opening and closing speed is greatly improved, the electric arc generation is reduced, the overall structure is simplified, there is no complex multi-buckle linkage, and single part damage will not cause the whole machine to jam or fail.

Description

Technical Field

[0001] This invention relates to the field of disconnecting switch technology, and more specifically, to a high-voltage disconnecting switch for a distribution cabinet. Background Technology

[0002] High-voltage disconnect switches are core equipment in distribution cabinets and power distribution systems, ensuring electrical isolation and maintenance safety. They are widely used in indoor high-voltage power distribution circuits, primarily to establish a visible insulation break under no-load conditions, meeting the safety requirements of switching operations and equipment maintenance. Currently, most high-voltage disconnect switches commonly used in distribution cabinets employ manual operation or motor-driven lever rotation mechanisms. While these can achieve basic opening and closing functions, they have several drawbacks in practical use: traditional direct-drive operating mechanisms have slow opening and closing speeds, and the contact separation and closing process is prone to generating continuous electric arcs, exacerbating contact erosion and aging of insulation components, thus reducing equipment lifespan; the mechanism lacks reliable energy storage and rapid release structures, making it difficult to stably control the operating force and speed, easily leading to problems such as incomplete closing and incomplete opening, affecting power supply reliability; at the same time, existing equipment lacks independent emergency opening and mechanical self-locking mechanisms, making it impossible to quickly and forcibly disconnect the circuit in the event of circuit faults, motor power failure, or external disturbances, and easily causing safety hazards such as accidental closing and accidental opening.

[0003] To address the aforementioned technical issues, the patent with publication number CN120432335B, entitled "An Electric Operating Device for a High-Voltage Disconnect Switch," also addresses these issues. It employs an emergency disconnect mechanism composed of a reset element and an electromagnet. In the event of a circuit fault, the electromagnet drives the release of the limit switch, and the seventh spring's tension causes the reset block to push the moving seat, quickly opening the switch to prevent the fault from escalating and ensuring power system safety. However, this device utilizes numerous snap-fit ​​structures with various interlocking states. If any component fails, the entire structure may experience operational lag or malfunction. Therefore, a high-voltage disconnect switch for distribution cabinets is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a high-voltage disconnect switch for distribution cabinets to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-voltage disconnect switch for a distribution cabinet, comprising a support base, a stationary insulating terminal mounted on the support base, an opening / closing switch mounted on the stationary insulating terminal, a moving insulating terminal hinged to the outside of the opening / closing switch, a rotating rod rotatably connected to the outside of the support base, the bottom of the moving insulating terminal hinged to the outside of the rotating rod, a drive plate mounted at the end of the rotating rod, a mounting box mounted on the outside of the support base, and an energy storage toggle structure mounted inside the mounting box;

[0006] The energy storage actuation structure includes the movable base, which is slidably connected to the inside of the mounting box. The lever is fixedly connected to the outside of the movable base. The movable base drives the lever to quickly move the drive plate through the drive structure to realize the opening and closing of the gate. A side positioning structure is installed inside the mounting box.

[0007] The side positioning structure is used to position the moved seat and the lever to a designated position after they have been moved, so as to prevent the moved seat from driving the lever to move the drive plate at will.

[0008] Preferably, the drive structure includes the forward and reverse motor, which is mounted on the outside of the mounting box. The output shaft of the forward and reverse motor passes through the outer wall of the mounting box and is connected to the lead screw via a coupling. The end of the lead screw away from the forward and reverse motor is rotatably connected to the inside of the mounting box. The movable seat has a movable groove on its outside. A rubber seat is fixedly connected inside the movable groove. Two electromagnet movable blocks are connected to the side of the rubber seat away from the movable groove. The movable holes are each provided with movable holes on adjacent sides. Ball bearings are installed on the inner walls of the movable holes. A spring is fixedly connected to the outside of the movable seat. The side of the spring away from the movable groove is fixedly connected to the inner wall of the mounting box.

[0009] Preferably, the side positioning structure includes two first electromagnet plates, which are fixedly connected to one side of the inner wall of the mounting box. A second electromagnet plate is fixedly connected to the side of the mounting box away from the first electromagnet plates. The first and second electromagnet plates are used to attract and position the moving seat and the electromagnet moving block when the moving seat moves the electromagnet moving block to a position close to the first and second electromagnet plates, so as to prevent the moving seat from compressing and rebounding, causing the drive plate to be moved arbitrarily.

[0010] Preferably, the first and second electromagnet plates are both fixedly connected to the outside of the first and second electromagnet plates, and the electromagnet moving block is fixedly connected to the outside of a plurality of second and third reverse ratchet plates respectively. The tips of the plurality of second and third reverse ratchet plates are opposite to each other. The tip of the second reverse ratchet plate is opposite to the tip of the first reverse ratchet plate located outside the second electromagnet plate, and the tip of the third reverse ratchet plate is opposite to the tip of the first reverse ratchet plate located outside the first electromagnet plate.

[0011] Preferably, the magnetic plate is integrally formed on the outside of the first reverse ratchet plate. The magnetic plate is used to generate an adsorption force on the electromagnet moving block, ensuring that the electromagnet moving block can drive the second or third reverse ratchet plate to be stably adsorbed and fastened to the first reverse ratchet plate without external force.

[0012] Preferably, the inclined edge is integrally formed on the side of the second electromagnet plate and the first electromagnet plate near the movable seat, and the inclined edge is used to guide the movable seat during the movement process.

[0013] Preferably, the lateral moving electromagnet is integrally formed on the outside of the electromagnet moving block, and the lateral attracting electromagnet is fixedly connected to the outside of both the second electromagnet plate and the first electromagnet plate. The lateral attracting electromagnet is used to cooperate with the lateral moving electromagnet to attract and drive the moving seat to the position of the first electromagnet plate or the second electromagnet plate.

[0014] Preferably, a toggle lock is installed on the outside of the support base, and one end of the rotating rod is inserted into the lock hole of the toggle lock. The toggle lock is used to lock the rotating rod after the circuit is opened, so as to prevent accidental reclosing after the circuit is opened.

[0015] Preferably, the guide light rod is fixedly connected inside the mounting box, and the guide light rod penetrates the outer wall of the movable base.

[0016] Preferably, multiple second auxiliary universal balls are fixedly connected to the top and bottom of the electromagnet moving block, and multiple first auxiliary universal balls are installed at the bottom of the moving base.

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

[0018] In this invention, when circuit breaking is required, the two electromagnet moving blocks are energized and attracted, then cooperate with the lead screw to drive the moving seat to move and compress the spring to store energy. After the energy storage is completed, the energization of the two electromagnet moving blocks is turned off. At this time, the two electromagnet moving blocks will separate from the lead screw under the action of the rubber seat. When the two electromagnet moving blocks separate from the lead screw, the compressed spring will release its elasticity. After the elasticity is released, it will push the moving seat and the lever to move quickly, thereby realizing the lever to quickly move the drive plate, which greatly improves the opening and closing speed and reduces the generation of electric arc. At the same time, the overall structure is simplified and there are no complex multi-clamp linkages. The failure of a single part will not cause the whole machine to jam or fail. Attached Figure Description

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

[0020] Figure 2 This is a schematic diagram of the internal structure of the mounting box in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the moving slot in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of two electromagnet moving blocks in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the separated state structure of the electromagnet moving block and the lead screw in an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the magnetic accumulator plate in an embodiment of the present invention.

[0025] In the diagram: 100, Support base; 101, Stationary insulated terminal; 102, Opening / closing gate; 103, Moving insulated terminal; 104, Rotating rod; 105, Mounting box; 106, Forward / Reverse motor; 107, Lead screw; 108, Moving base; 109, Toggle lever; 110, Drive plate; 111, Moving slot; 112, Electromagnet moving block; 113, Rubber seat; 114, Moving hole; 115, Spring; 116, Toggle lock; 200, First electromagnet plate; 201, Second electromagnet plate; 300, First reverse ratchet plate; 301, Second reverse ratchet plate; 302, Third reverse ratchet plate; 400, Magnetic suction plate; 500, Inclined edge; 501, Lateral moving electromagnet; 600, Lateral attracting electromagnet; 700, First auxiliary universal ball; 800, Guide light rod; 900, Second auxiliary universal ball. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1, such as Figures 1-2 As shown, this application discloses a high-voltage disconnect switch for a distribution cabinet, including a support base 100, a stationary insulating terminal 101 mounted on the support base 100, an opening / closing switch 102 mounted on the stationary insulating terminal 101, a moving insulating terminal 103 hinged to the outside of the opening / closing switch 102, a rotating rod 104 rotatably connected to the outside of the support base 100, the bottom of the moving insulating terminal 103 hinged to the outside of the rotating rod 104, a drive plate 110 mounted at the end of the rotating rod 104, an mounting box 105 mounted on the outside of the support base 100, and an energy storage toggle structure mounted inside the mounting box 105.

[0028] The energy storage actuation structure includes a movable base 108, which is slidably connected to the inside of the mounting box 105. A lever 109 is fixedly connected to the outside of the movable base 108. The movable base 108 drives the lever 109 to quickly move the drive plate 110 to realize the opening and closing of the gate through the drive structure. A side positioning structure is installed inside the mounting box 105.

[0029] The side positioning structure is used to position the moved base 108 and lever 109 to a designated position after they have been moved, so as to prevent the moved base 108 from driving the lever 109 to move the drive plate 110 at will.

[0030] Specifically, the support base 100 is used to install and support all components of the entire high-voltage disconnect switch, so that the stationary insulating terminal 101, the moving insulating terminal 103, and the subsequent drive mechanism can maintain a relatively stable spatial position inside the distribution cabinet. Both the stationary insulating terminal 101 and the moving insulating terminal 103 serve the functions of electrical insulation and conductive connection. Together with the opening and closing switch 102, they form a switching structure for the opening and closing states. The moving insulating terminal 103 swings under the drive of the rotating rod 104 to realize the connection or disconnection with the stationary insulating terminal 101. The rotating rod 104 is rotatably connected to the support base 100 and can serve as the actuation output of the moving insulating terminal 103. The drive plate 110 is installed at the end of the rotating rod 104. The drive plate 110 is used to receive external turning force and convert the turning force into the rotational torque of the rotating rod 104, thereby driving the moving end insulating terminal 103 to move quickly. Under such driving action, the driving force does not act directly on the moving end insulating terminal 103, but first acts on the drive plate 110 and is converted and output through the rotating rod 104. This can improve the stability of the action, reduce the direct impact on the conductive structure body, and facilitate the subsequent setting of an energy storage turning structure to achieve rapid opening and closing of the circuit breaker.

[0031] like Figures 2 to 4 As shown, the drive structure includes a forward and reverse motor 106, which is mounted on the outside of the mounting box 105. The output shaft of the forward and reverse motor 106 passes through the outer wall of the mounting box 105 and is connected to a lead screw 107 via a coupling. The end of the lead screw 107 away from the forward and reverse motor 106 is rotatably connected to the inside of the mounting box 105. A moving slot 111 is provided on the outside of the moving seat 108. A rubber seat 113 is fixedly connected inside the moving slot 111. Two electromagnet moving blocks 112 are connected to the side of the rubber seat 113 away from the moving slot 111. Moving holes 114 are provided on the adjacent sides of the two electromagnet moving blocks 112. Ball bearings are installed on the inner wall of the moving holes 114. A spring 115 is fixedly connected to the outside of the moving seat 108. The side of the spring 115 away from the moving slot 111 is fixedly connected to the inner wall of the mounting box 105.

[0032] Specifically, the forward and reverse motor 106 is installed outside the mounting box 105. When in use, the operator can control the forward or reverse rotation of the forward and reverse motor 106 to drive its output shaft to rotate. Since the output shaft passes through the outer wall of the mounting box 105 and is connected to the lead screw 107 through a coupling, the rotational force of the motor can be stably transmitted to the lead screw 107, thereby causing the lead screw 107 to rotate inside the mounting box 105. During the rotation of the lead screw 107, the operator can energize the two electromagnet moving blocks 112 located inside the moving slot 111, so that the two electromagnet moving blocks 112 attract each other. When the two electromagnet moving blocks 112 attract each other, they can form a threaded engagement with the lead screw 107, thereby driving the electromagnet moving blocks 112 and the moving seat 108 to move. When the moving seat 108 moves, it can drive the external lever 109 to move, thereby actuating the drive plate 110. By actuating the drive plate 110, the rotation of the rotating rod 104 is achieved.

[0033] like Figure 2 As shown, a toggle lock 116 is installed on the outside of the support base 100. One end of the rotating rod 104 is inserted into the lock hole of the toggle lock 116. The toggle lock 116 is used to lock the rotating rod 104 after the circuit is opened, so as to prevent accidental closing after the circuit is opened.

[0034] Specifically, the toggle lock 116 adopts a gravity self-locking plus anti-misoperation double mechanical locking structure. When the opening action is completed and the rotating rod 104 reaches the opening position, the lock cylinder automatically falls into the positioning slot at the end of the rotating rod 104 by its own gravity, mechanically locking the rotational freedom of the rotating rod 104, realizing automatic locking in the opening state; at this time, the rotating rod 104 cannot be accidentally moved back to the opening position by external force, effectively preventing accidental closing caused by unexpected factors such as vibration and accidental contact.

[0035] Furthermore, the toggle lock 116 is a purely mechanical lock body that does not require power supply. It can reliably maintain the locked state even in the event of power failure or malfunction. Before the closing operation, the lock cylinder must be manually lifted upwards to release the lock, so that the rotating rod 104 can be driven by the drive structure to rotate. This fundamentally eliminates the risk of accidental closing in unattended situations and improves the safety of equipment maintenance and operation.

[0036] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, during use, when it is necessary to open the circuit breaker, after the two electromagnet moving blocks 112 are energized and attracted, they cooperate with the lead screw 107 to drive the moving seat 108 to move and compress the spring 115 to store energy. After the energy storage is completed, the energization of the two electromagnet moving blocks 112 is turned off. At this time, the two electromagnet moving blocks 112 will be separated from the lead screw 107 under the drive of the rubber seat 113. When the two electromagnet moving blocks 112 are separated from the lead screw 107, the compressed spring 115 will release its elasticity. After the spring 115 is released, it will push the moving seat 108 and the lever 109 to move quickly, thereby realizing that the lever 109 can quickly move the drive plate 110, which greatly improves the opening and closing speed and reduces the generation of electric arc. At the same time, the overall structure is simplified and there is no complex multi-clamp linkage. The failure of a single part will not cause the whole machine to jam or fail.

[0037] Example 2: Considering that during use, when the two electromagnet moving blocks 112 are de-energized, the spring 115 will push the moving seat 108 and the lever 109 to move the drive plate 110, thus opening the gate. However, after the spring 115 is released quickly, it will rebound, and when it rebounds, it will drive the lever 109 again to move the drive plate 110 back to its original position. This results in the gate opening and then closing again, and the overall opening phenomenon cannot be maintained. To address the above technical problems, this application proposes the following technical solution to solve the above technical problems, specifically:

[0038] like Figures 3 to 4 As shown, the side positioning structure includes two first electromagnet plates 200, which are fixedly connected to one side of the inner wall of the mounting box 105. A second electromagnet plate 201 is fixedly connected to the side of the mounting box 105 away from the first electromagnet plates 200. The first electromagnet plates 200 and the second electromagnet plates 201 are used to attract and position the moving seat 108 and the electromagnet moving block 112 when the moving seat 108 drives the electromagnet moving block 112 to a position close to the first electromagnet plates 200 and the second electromagnet plates 201, so as to prevent the moving seat 108 from compressing and rebounding, causing the drive plate 110 to be moved randomly.

[0039] Specifically, the movable seat 108 moves along the inside of the mounting box 105 under the drive of the forward and reverse motor 106 and the lead screw 107. When the movable seat 108 moves to one end of the mounting box 105, the electromagnet movable block 112 located inside the movable seat 108 synchronously approaches the first electromagnet plate 200 or the second electromagnet plate 201 at the corresponding position. At this time, through the electromagnetic attraction between the first electromagnet plate 200, the second electromagnet plate 201 and the electromagnet movable block 112, the movable seat 108 can be stably held at the corresponding end position after reaching the predetermined position. Since the movable seat 108 is externally connected to the spring 115, the movable seat 108 will have a certain rebound tendency during the movement. If the end positioning structure is missing, the movable seat 108 may have a slight reverse movement after stopping due to the rebound of the spring 115, which may cause the lever 109 to accidentally touch the drive plate 110, affecting the stability of the opening or closing state. Furthermore, by setting the first electromagnet plate 200 and the second electromagnet plate 201, the movable seat 108 can be actively attracted and positioned when it is in place, keeping the lever 109 in a predetermined position and avoiding irregular swinging, thereby improving the reliability of the state after the entire switch action. Furthermore, the two first electromagnet plates 200 are set on the same side of the mounting box 105, and the second electromagnet plate 201 is set on the other side of the mounting box 105. This way, when the movable seat 108 moves to the position of the first electromagnet plate 200 under the drive of the spring 115, the opening action is achieved. After the opening action is achieved, it will be steadily attracted by the first electromagnet plate 200, counteracting the rebound force of the spring 115. Simultaneously, when the movable seat 108 moves close to the position of the second electromagnet plate 201, the closing action can be achieved. After the closing action is achieved, the operator can energize the second electromagnet plate 201 to attract the electromagnet moving block 112 located inside the movable seat 108, thus stabilizing the movable seat 108 after closing.

[0040] like Figure 6 As shown, both the second electromagnet plate 201 and the first electromagnet plate 200 have an integrally formed inclined edge 500 on the side near the movable seat 108. The inclined edge 500 is used to guide the movable seat 108 during the movement process.

[0041] Specifically, during assembly and debugging, to ensure that the movable seat 108 can accurately enter the corresponding end position when released at high speed or driven by the motor, it is necessary to avoid a direct hard collision between the electromagnet movable block 112 and the end structure. Therefore, an inclined edge 500 is provided on the side of the first electromagnet plate 200 and the second electromagnet plate 201 near the movable seat 108. When the movable seat 108 approaches the end, if there is a slight deviation, the inclined edge 500 can first contact the electromagnet movable block 112 or its adjacent part, and gradually correct it to the correct trajectory through the inclined guide effect, and then bring it close to the mating area of ​​the electromagnet plate and the ratchet plate.

[0042] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: Compared with Embodiment 1, in this embodiment, by setting a side positioning structure composed of a first electromagnet plate 200 and a second electromagnet plate 201 inside the mounting box 105, after the spring 115 quickly releases and pushes the moving seat 108 and the lever 109 to complete the opening action, the strong attraction of the first electromagnet plate 200 on the electromagnet moving block 112 can be used to counteract the rebound pull of the spring 115, completely avoiding the problem of the moving seat 108 rebounding and driving the lever 109 to push the drive plate 110 back to its original position, causing the circuit to close again after opening. At the same time, in the closed state, the second electromagnet plate 201 can attract and position the electromagnet moving block 112 to maintain the stability of the closed state, effectively solving the technical defects of the rebound and inability to maintain the state caused by the rapid release of the spring 115, and improving the overall position locking capability and operational safety of the high-voltage disconnect switch after opening and closing.

[0043] Example 3: Considering that during use, if the first electromagnet plate 200 and the second electromagnet plate 201 are continuously used to form a magnetic adsorption limit, then the first electromagnet plate 200 and the second electromagnet plate 201 must be continuously energized. However, once the power is cut off, the spring 115 will still rebound, causing the lever 109 to arbitrarily move the drive plate 110. To address the above technical problems, this application proposes the following technical solution to solve the above technical problems, specifically:

[0044] like Figures 4 to 6 As shown, a first reverse ratchet 300 is fixedly connected to the outside of both the first electromagnet plate 200 and the second electromagnet plate 201. A plurality of second reverse ratchet 301s and a plurality of third reverse ratchet 302s are fixedly connected to the outside of the electromagnet moving block 112. The tips of the plurality of second reverse ratchet 301s and third reverse ratchet 302s face opposite directions. The tip of the second reverse ratchet 301 faces opposite directions to the tip of the first reverse ratchet 300 located outside the second electromagnet plate 201. The tip of the third reverse ratchet 302 faces opposite directions to the tip of the first reverse ratchet 300 located outside the first electromagnet plate 200.

[0045] Specifically, when the operator performs the opening or closing operation, the movable base 108 moves in the corresponding direction under the combined action of the forward and reverse motor 106, the lead screw 107, and the spring 115. The electromagnet movable blocks 112 located on both sides inside the movable base 108 also move towards the corresponding side simultaneously. In order to make the locking effect after the movement is in place not only dependent on electromagnetic adsorption, but also have a certain mechanical limiting and anti-reverse retreat capability, a first reverse ratchet 300 is set outside the first electromagnet plate 200 and the second electromagnet plate 201, and a second reverse ratchet 301 and a third reverse ratchet 302 with opposite tip directions are set outside the electromagnet movable block 112, so that the movable block forms a one-way entry and reverse blocking relationship with the corresponding ratchet when it approaches different ends.

[0046] Specifically, when the operator controls the device to move in the closing direction, the electromagnet moving block 112 moves towards the side of the second electromagnet plate 201. At this time, the second reverse ratchet 301 gradually approaches and contacts the first reverse ratchet 300 on that side. Since the tips of the two plates face opposite directions, the ratchet plates can squeeze and pass each other in the forward direction, thus not significantly hindering the forward movement of the moving seat 108. When it moves into position, if the spring 115 has a rebound tendency, or if external vibration causes the moving seat 108 to attempt to retreat in the reverse direction, the second reverse ratchet 301 will form a jamming with the first reverse ratchet 300, making it difficult for it to disengage in the reverse direction, thereby achieving auxiliary locking of the closing end position. Similarly, when the operator controls the device to move in the opening direction, the electromagnet moving block 112 moves towards the side of the first electromagnet plate 200. At this time, the third reverse ratchet 302 cooperates with the first reverse ratchet 300 on that side. Since the tip of the third reverse ratchet 302 faces the opposite direction to the tip of the first reverse ratchet 300 on the same side, it can smoothly approach and overstep to engage in the opening direction. However, when it retracts in the reverse direction, it is blocked by the ratchet, which prevents the moving seat 108 from swinging back due to the pull of the spring 115, thereby preventing the drive plate 110 from being accidentally reversed.

[0047] like Figure 6As shown, the first reverse ratchet plate 300 has an integrally formed magnetic plate 400 on its exterior. The magnetic plate 400 is used to generate an attraction force on the electromagnet moving block 112. When the electromagnet moving block 112 is not energized, the electromagnet moving block 112 is made of metal iron. Therefore, after the first reverse ratchet plate 300 is engaged with the second reverse ratchet plate 301 or the third reverse ratchet plate 302, the operator can cancel the energization of the electromagnet moving block 112 and the first electromagnet plate 200 or the second electromagnet plate 201. This ensures that the electromagnet moving block 112 can drive the second reverse ratchet plate 301 or the third reverse ratchet plate 302 to be stably engaged with the first reverse ratchet plate 300 when there is no external force or the entire energization is canceled. Furthermore, when it is necessary to cancel the fastening connection between the first reverse ratchet plate 300 and the second reverse ratchet plate 301 or the third reverse ratchet plate 302, it is only necessary to actively energize the two electromagnet moving blocks 112 to generate attraction, thereby causing the two electromagnet moving blocks 112 to move the second reverse ratchet plate 301 and the third reverse ratchet plate 302 away from the first reverse ratchet plate 300, thus canceling the fastening between the first reverse ratchet plate 300 and the second reverse ratchet plate 301 or the third reverse ratchet plate 302. After the fastening is canceled, the operator cancels the energization of the electromagnet moving blocks 112 and the first electromagnet plate 200 or the second electromagnet plate 201, which will cause the electromagnet moving blocks 112 to move the moving seat 108 into an active state, thus canceling the threaded connection between the electromagnet moving blocks 112 and the lead screw 107.

[0048] like Figures 2-6 As shown, the electromagnet moving block 112 is integrally formed with a transverse moving electromagnet 501. The second electromagnet plate 201 and the first electromagnet plate 200 are both fixedly connected with transverse attracting electromagnets 600. The transverse attracting electromagnets 600 are used to cooperate with the transverse moving electromagnet 501 to attract and drive the moving seat 108 to the position of the first electromagnet plate 200 or the second electromagnet plate 201.

[0049] Specifically, in this embodiment, in addition to the forward and reverse motor 106 and the lead screw 107 providing the basic driving force for movement, the electromagnetic cooperation between the lateral moving electromagnet 501 and the lateral attracting electromagnet 600 further enhances the traction capability of the moving seat 108 near its end position. When the operator needs the moving seat 108 to quickly move towards a certain end, the lateral attracting electromagnet 600 at that end can be energized, causing it to form a lateral attraction with the lateral moving electromagnet 501 outside the electromagnet moving block 112, thereby generating an additional end traction force on the basis of the original linear movement. Furthermore, the setting of the lateral moving electromagnet 501 and the lateral attracting electromagnet 600 is equivalent to adding an "electromagnetic pull-in" process when the moving seat 108 approaches the end point. This allows the moving seat 108 to reach the position of the first electromagnet plate 200 or the second electromagnet plate 201 more quickly and accurately, and is beneficial to the completion of subsequent ratchet engagement and positioning attraction. Especially when the spring 115 releases at a fast speed and has a large inertia, the lateral attraction electromagnet 600 can help the moving block enter the locking area more stably, reducing the phenomenon of rebound or failure to enter the locking area after impact.

[0050] like Figure 5 As shown, multiple first auxiliary universal balls 700 are installed at the bottom of the movable seat 108.

[0051] Specifically, during actual assembly and operation, to ensure smoother reciprocating sliding of the movable seat 108 within the mounting box 105, multiple first auxiliary universal balls 700 are installed at the bottom of the movable seat 108. When the movable seat 108 moves linearly under the drive of the forward / reverse motor 106 or the release action of the spring 115, the first auxiliary universal balls 700 can form rolling contact with the bottom inner wall of the mounting box 105, transforming the original sliding friction into rolling friction and reducing movement resistance.

[0052] like Figure 2 As shown, a guide light rod 800 is fixedly connected inside the mounting box 105, and the guide light rod 800 penetrates the outer wall of the movable seat 108.

[0053] Specifically, to ensure a more stable movement trajectory for the movable seat 108 and prevent swaying, tilting, or jamming during reciprocating motion, a guide rod 800 is installed inside the mounting box 105, extending through the outer wall of the movable seat 108. This allows the movable seat 108 to reduce friction not only through the first auxiliary universal ball 700 at its bottom but also by forming a clear linear guiding constraint through the guide rod 800 during movement.

[0054] Furthermore, multiple second auxiliary universal balls 900 are fixedly connected to the top and bottom of the electromagnet moving block 112.

[0055] Specifically, when the electromagnet moving block 112 moves inside the moving groove 111, it is also necessary to maintain low resistance and minimal wear. To this end, multiple second auxiliary universal balls 900 are provided at the top and bottom of the electromagnet moving block 112 to form a rolling support relationship with the inner wall of the moving groove 111, thereby reducing the friction between the electromagnet moving block 112 and the moving groove 111.

[0056] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: Compared with Embodiment 2, in this embodiment, by setting a first reverse ratchet 300 outside the first electromagnet plate 200 and the second electromagnet plate 201, and setting a second reverse ratchet 301 and a third reverse ratchet 302 facing opposite directions outside the electromagnet moving block 112, combined with the integrally formed magnetic suction plate 400, and the added lateral moving electromagnet 501 and lateral attraction electromagnet 600, the mechanical self-locking function of one-way passage and reverse locking is realized. Moreover, the ratchet block and the magnetic suction plate 400 can be attracted and offset the spring 115 without continuous power supply, solving the problems of positioning failure after power failure and the lever 109 accidentally moving the drive plate 110. At the same time, when unlocking is required, the ratchet block can be released by powering on the electromagnet moving block 112. Furthermore, the use of the lateral attraction electromagnet 600 can enhance the end traction, allowing the moving seat 108 to enter the positioning position faster and more accurately, reducing the phenomenon of impact rebound and inaccurate positioning.

[0057] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-voltage disconnect switch for a distribution cabinet, comprising a support base (100), wherein a stationary insulating terminal (101) is mounted on the support base (100), a switching device (102) is mounted on the stationary insulating terminal (101), and a moving insulating terminal (103) is hinged to the outside of the switching device (102), characterized in that: A rotating rod (104) is rotatably connected to the outside of the support base (100). The bottom of the moving end insulating terminal (103) is hinged to the outside of the rotating rod (104). A drive plate (110) is installed at the end of the rotating rod (104). An installation box (105) is installed on the outside of the support base (100). An energy storage toggle structure is installed inside the installation box (105). The energy storage actuation structure includes a movable base (108), which is slidably connected to the inside of the mounting box (105). A lever (109) is fixedly connected to the outside of the movable base (108). The movable base (108) drives the lever (109) to quickly move the drive plate (110) to realize the opening and closing of the gate through the drive structure. A side positioning structure is installed inside the mounting box (105). The side positioning structure is used to position the moved seat (108) and lever (109) to a designated position after the movement, so as to prevent the moved seat (108) from driving the lever (109) to randomly move the drive plate (110).

2. A high-voltage disconnect switch for a distribution cabinet according to claim 1, characterized in that: The drive structure includes a forward and reverse motor (106), which is mounted on the outside of the mounting box (105). The output shaft of the forward and reverse motor (106) passes through the outer wall of the mounting box (105) and is connected to a lead screw (107) via a coupling. The end of the lead screw (107) away from the forward and reverse motor (106) is rotatably connected to the inside of the mounting box (105). A moving slot (111) is provided on the outside of the moving base (108), and the inside of the moving slot (111) is... A rubber seat (113) is fixedly connected. Two electromagnet moving blocks (112) are connected to the side of the rubber seat (113) away from the moving groove (111). Moving holes (114) are opened on the adjacent side of the two electromagnet moving blocks (112). Ball bearings are installed on the inner wall of the moving hole (114). A spring (115) is fixedly connected to the outside of the moving seat (108). The side of the spring (115) away from the moving groove (111) is fixedly connected to the inner wall of the mounting box (105).

3. A high-voltage disconnect switch for a distribution cabinet according to claim 1, characterized in that: The side positioning structure includes two first electromagnet plates (200), which are fixedly connected to one side of the inner wall of the mounting box (105). A second electromagnet plate (201) is fixedly connected to the side of the mounting box (105) away from the first electromagnet plates (200). The first electromagnet plates (200) and the second electromagnet plates (201) are used to attract and position the moving seat (108) and the electromagnet moving block (112) when the moving seat (108) drives the electromagnet moving block (112) to a position close to the first electromagnet plates (200) and the second electromagnet plates (201), so as to avoid the moving seat (108) from compressing and rebounding and causing the drive plate (110) to be moved randomly.

4. A high-voltage disconnect switch for a distribution cabinet according to claim 3, characterized in that: The first electromagnet plate (200) and the second electromagnet plate (201) are both fixedly connected to the outside of a first reverse ratchet (300). The electromagnet moving block (112) is fixedly connected to the outside of a plurality of second reverse ratchets (301) and a plurality of third reverse ratchets (302). The tips of the plurality of second reverse ratchets (301) and third reverse ratchets (302) are opposite in orientation. The tip of the second reverse ratchet (301) is opposite in orientation to the tip of the first reverse ratchet (300) located outside the second electromagnet plate (201). The tip of the third reverse ratchet (302) is opposite in orientation to the tip of the first reverse ratchet (300) located outside the first electromagnet plate (200).

5. A high-voltage disconnect switch for a distribution cabinet according to claim 4, characterized in that: The first reverse ratchet (300) has an integrally formed magnetic plate (400) on its exterior. The magnetic plate (400) is used to generate an adsorption force on the electromagnet moving block (112) to ensure that the electromagnet moving block (112) can drive the second reverse ratchet (301) or the third reverse ratchet (302) to be stably adsorbed and fastened to the first reverse ratchet (300) without external force.

6. A high-voltage disconnect switch for a distribution cabinet according to claim 5, characterized in that: Both the second electromagnet plate (201) and the first electromagnet plate (200) have an integrally formed inclined edge (500) on the side near the moving seat (108), and the inclined edge (500) is used to guide the moving seat (108) during the movement process.

7. A high-voltage disconnect switch for a distribution cabinet according to claim 6, characterized in that: The electromagnet moving block (112) is integrally formed with a transverse moving electromagnet (501). The second electromagnet plate (201) and the first electromagnet plate (200) are both fixedly connected with transverse attracting electromagnets (600). The transverse attracting electromagnets (600) are used to cooperate with the transverse moving electromagnets (501) to attract and drive the moving seat (108) to the position of the first electromagnet plate (200) or the second electromagnet plate (201).

8. A high-voltage disconnect switch for a distribution cabinet according to claim 1, characterized in that: A toggle lock (116) is installed on the outside of the support base (100). One end of the rotating rod (104) is inserted into the lock hole of the toggle lock (116). The toggle lock (116) is used to lock the rotating rod (104) after the circuit is opened, so as to prevent accidental closing after the circuit is opened.

9. A high-voltage disconnect switch for a distribution cabinet according to claim 1, characterized in that: The mounting box (105) is fixedly connected to a guide light rod (800), which penetrates the outer wall of the movable seat (108).

10. A high-voltage disconnect switch for a distribution cabinet according to claim 7, characterized in that: The top and bottom of the electromagnet moving block (112) are fixedly connected with a plurality of second auxiliary universal balls (900), and the bottom of the moving base (108) is equipped with a plurality of first auxiliary universal balls (700).

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