Stable operating mechanism for isolating switch

Abstract

The invention belongs to the technical field of disconnecting switches, and particularly relates to a stable operating mechanism for a disconnecting switch, which comprises a first shell and a second shell, the first shell is arranged on the back face of the second shell, the first shell and the second shell are connected through a bolt, and a pressing shell is installed on the first shell and the second shell. The disconnecting switch is controlled to complete closing and opening actions, in addition, the special locking mechanism is arranged, after closing, the locking plate is pulled to be clamped into the limiting notch of the limiting plate, safe locking of the operation position is achieved, misoperation is prevented, and particularly, the safety of the disconnecting switch is improved. According to the rotating shaft, the upper-lower double-side bearing mode of the first shell and the second shell is adopted, the problem that in the prior art, due to unbalanced bearing force, the rotating shaft deviates or twists is effectively solved, and the stability of the rotating process is remarkably improved; therefore, the stability and the reliability of the switching-on and switching-off process of the isolating switch controlled by the gear bearing disc are ensured.

Description

Technical Field

[0001] This invention belongs to the field of disconnecting switch technology, specifically a stable operating mechanism for disconnecting switches. Background Technology

[0002] A disconnecting switch is a switching device that, when in the open position, has a specified insulation distance between its contacts and a clear disconnection mark; when in the closed position, it can carry current under normal circuit conditions and current under abnormal conditions for a specified time. Disconnecting switches are often equipped with operating devices to drive their operation.

[0003] Existing operating devices typically consist of a housing and a transmission assembly installed inside it. The transmission assembly connects a knob and an output shaft. By rotating the knob, the user drives the output shaft to rotate via the transmission assembly, thereby controlling the disconnector to complete the closing or opening process. However, traditional transmission assemblies are usually installed on the upper side inside the housing. During operation, when the output shaft outputs torque, this torque generates a reaction force on the transmission assembly. Due to the lack of force balance, the reaction force is unevenly transmitted to the housing, easily causing the knob to shift or deform, or even squeezing the housing, causing it to deform or open. These structural defects severely affect the mechanical stability and normal use of the operating device; therefore, a stable operating mechanism for disconnectors is needed to solve these problems. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes a stable operating mechanism for disconnecting switches. This invention primarily addresses the problem that the mounting of the transmission components to the upper side wall of the housing in the operating device leads to an imbalance of torque acting on the upper side of the housing, resulting in knob misalignment or deformation of the housing, thus affecting the normal operation of the operating device.

[0005] The technical solution adopted by this invention to solve its technical problem is: a stable operating mechanism for a disconnecting switch, comprising a first housing and a second housing; the first housing is disposed on the back of the second housing, and the first housing and the second housing are connected by bolts; a pressure shell is installed on the first housing and the second housing; a gear bearing plate is rotatably connected inside both the first housing and the second housing; two intermediate seats are connected between the two gear bearing plates; sliding toothed plates mesh on the two gear bearing plates; the sliding toothed plates are slidably connected inside the first housing and the second housing; an extension column is installed on the sliding toothed plates; a rotating disk is provided on the sliding toothed plates; a pressing groove is formed on the rotating disk; and the extension column is disposed on... Inside the extrusion groove, a rotating shaft is mounted on the rotating disk. A bushing is fitted over the rotating shaft, and the bushing is installed inside the first and second outer shells. An installation sleeve is installed outside the rotating shaft, and a limiting piece is installed outside the installation sleeve. The rotating shaft is rotatably connected inside the pressure shell, and a sliding hole is provided inside the pressure shell. A locking piece is slidably connected inside the sliding hole. A main knob is mounted on the top of the rotating shaft, and a side knob is mounted inside the gear bearing plate on the rear side. A locking sleeve installed on the back of the first outer shell is fitted over the side knob. A connecting seat is mounted on the outer arc surface of the intermediate seat, and a first spring is locked inside the connecting seat. The first spring is locked inside the support plate, and the support plate is clamped inside the first and second outer shells.

[0006] As a further description of the above technical solution: the first and second housings are provided with a rotating cavity, the rotating disk is located in the rotating cavity, the inner wall of the rotating cavity is provided with two mounting slots, the mounting slots are provided with pressure sensors, the rotating disk is located outside one of the pressure sensors, the pressure sensor is electrically connected to the controller, the pressure housing is provided with an alarm, and the alarm is electrically connected to the controller.

[0007] As a further description of the above technical solution: the contact portions of the connecting seat and the support plate with the first spring are both provided with a rubber layer.

[0008] As a further description of the above technical solution: a support sleeve is installed outside the rotating shaft, and electromagnets are installed on both the left and right sides of the support sleeve. A groove is opened on the outside of the intermediate seat corresponding to the position of the rotating shaft. A magnetic plate is installed in the groove. The rotation path of the magnetic plate passes through the position of the electromagnet. The electromagnet is electrically connected to the controller.

[0009] As a further description of the above technical solution: both the first housing and the second housing are equipped with damping mechanisms. The two damping mechanisms are arranged in a circumferential direction on the outside of the rotating shaft. The damping mechanism on the left is located outside the middle seat. The damping mechanism is used to buffer the rotating middle seat.

[0010] As a further description of the above technical solution: the damping mechanism includes a connecting cylinder, a base is installed under the connecting cylinder, the base is installed inside the first outer shell, a piston plate is slidably connected inside the connecting cylinder, a crossbar is installed outside the piston plate, the crossbar is slidably connected inside the connecting cylinder, a contact rod is fixedly connected to one end of the crossbar outside the connecting cylinder, the contact rod is used to contact the intermediate seat, and a second spring is installed outside the piston plate, the second spring is installed on the inner wall of the connecting cylinder.

[0011] As a further description of the above technical solution: a sliding sealing ring is provided between the crossbar and the connecting cylinder, and a first connecting hole and a second connecting hole are provided under the connecting cylinder, the first connecting hole and the second connecting hole being located on the front and rear sides of the piston plate, respectively.

[0012] As a further description of the above technical solution: a sliding contact layer is installed on the side of the contact rod near the middle seat, and the sliding contact layer is made of Teflon.

[0013] As a further description of the above technical solution: the contact portion of the first outer shell and the second outer shell is provided with a sealing ring, and the contact portion of the pressure shell with the first outer shell and the second outer shell is provided with a sealing gasket.

[0014] As a further description of the above technical solution: the port of the extrusion groove near the outer arc surface of the rotating disk is attached to the surface of the extension column, and the part of the extrusion groove away from the outer arc surface of the rotating disk is larger than the extension column.

[0015] The beneficial effects of this invention are as follows: 1. In this invention, through optimized structural design, high stability and safety of the operating mechanism are achieved. Specifically, the main knob drives the rotating shaft and rotating disk to rotate. Through the cooperation of the extrusion groove, extension column, and sliding tooth plate, the gear bearing disk can be driven to rotate efficiently and accurately, thereby controlling the disconnecting switch to complete the closing and opening actions. In addition, this invention is equipped with a special locking mechanism. After closing, the locking plate is pulled to engage with the limiting notch of the limiting plate, thereby achieving safe locking of the operating position and preventing misoperation. In particular, the rotating shaft of this invention adopts a double-sided bearing method with the first and second outer shells, which effectively solves the problem of rotating shaft offset or torsion caused by unbalanced bearing force in the prior art, significantly improving the stability of the rotation process, and thus ensuring the stability and reliability of the disconnecting switch opening and closing process controlled by the gear bearing disk.

[0016] 2. In this invention, by setting a pressure detection feedback mechanism, the problem of uneven elastic force caused by the manufacturing tolerance, installation error, and long-term fatigue deformation of the first spring, which leads to the gear bearing disk not rotating to the correct position, is effectively solved. During the process of controlling the closing of the disconnecting switch by driving the transmission component through the main knob, the rotating disk rotates accordingly and eventually squeezes the pressure sensor. The pressure sensor can detect whether the rotating disk has completely rotated to the position of contacting the side wall of the rotating cavity, and thus determine whether the gear bearing disk has driven the disconnecting switch to complete the closing. When the pressure value received by the controller does not meet the preset range, it is determined that the closing action has not been completed and the alarm is triggered. This design can accurately detect the switching status of the disconnecting switch, avoid the switch being in a dangerous position of not being fully closed, and ensure that the disconnecting switch is accurately and stably in the closed or open state, which greatly improves the safety and reliability of the operation process.

[0017] 3. This invention features automatic error correction and auxiliary drive functions. When the main knob is fully rotated but the system alarms (i.e., incomplete closing is detected), the controller automatically activates the electromagnet for intervention. The magnetic force generated by the electromagnet drives the magnetic plate, intermediate seat, and gear bearing plate to rotate assistedly, thereby compensating for the lack of stroke caused by insufficient elasticity or mechanical resistance, and realizing automatic correction of the closing action; forced positioning ensures accurate switch status: through the auxiliary drive of the electromagnet, the gear bearing plate drives the sliding tooth plate and extension column to move, and then reverses to squeeze the rotating disk to continue rotating until the rotating disk accurately squeezes the pressure sensor to the preset position. This mechanical forced process ensures that both the rotating disk and the gear bearing plate rotate accurately to the designated position, thereby forcing the isolating switch to be fully closed or open; eliminates safety hazards and improves the reliability of mechanism operation: this mechanism effectively avoids the phenomenon of "virtual connection" or incomplete action of the isolating switch caused by insufficient manual operation force or mechanical fatigue. Through automated closed-loop control, it ensures that every opening and closing operation is accurate, thereby completely eliminating the operational danger caused by inaccurate switch status and significantly improving the stability and safety of subsequent power operations. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the first and second outer shells in this invention; Figure 3 This is the present invention. Figure 2 Enlarged structural diagram of part A in the middle; Figure 4 This is a three-dimensional structural schematic diagram of the first outer shell in this invention; Figure 5This is a schematic diagram of the three-dimensional separation of the pressure shell and the locking plate in this invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the main knob in this invention; Figure 7 This is a three-dimensional structural schematic diagram of the sliding toothed plate in this invention; Figure 8 This is a three-dimensional structural schematic diagram of the first spring in this invention; Figure 9 In this invention Figure 8 Enlarged structural diagram of section B; Figure 10 This is a schematic diagram of the three-dimensional cross-section of the damping mechanism in this invention; Figure 11 This is a side view of the support plate in this invention. Figure 12 In this invention Figure 11 Enlarged structural diagram of section C; In the diagram: 1. First outer shell; 2. Second outer shell; 3. Pressure shell; 4. Gear bearing plate; 5. Sliding toothed plate; 6. Extension column; 7. Rotary disk; 8. Extrusion groove; 9. Rotating shaft; 10. Bushing; 11. Mounting sleeve; 12. Limiting plate; 13. Locking plate; 14. Main knob; 15. Locking sleeve; 16. Side knob; 17. Sliding hole; 18. Intermediate seat; 19. Groove; 20. Connecting seat; 21. First spring; 22. Support plate; 23. Rubber layer; 24. Magnetic plate; 25. Support sleeve; 26. Electromagnet; 27. Mounting groove; 28. Pressure sensor; 29. ​​Alarm; 30. Damping mechanism; 301. Connecting cylinder; 302. Piston plate; 303. Crossbar; 304. Contact rod; 305. Base; 306. Second spring; 307. First connecting hole; 308. Second connecting hole. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] like Figures 1 to 12As shown, a stable operating mechanism for a disconnecting switch includes a first housing 1 and a second housing 2. The first housing 1 is located on the back of the second housing 2, and the first housing 1 and the second housing 2 are connected by bolts. A pressure shell 3 is installed on the first housing 1 and the second housing 2. Gear bearing plates 4 are rotatably connected inside both the first housing 1 and the second housing 2. Two intermediate seats 18 are connected between the two gear bearing plates 4. Sliding toothed plates 5 mesh on the two gear bearing plates 4. The sliding toothed plates 5 are slidably connected inside the first housing 1 and the second housing 2. An extension column 6 is installed on the sliding toothed plates 5. A rotating disk 7 is provided on the sliding toothed plates 5. An extrusion groove 8 is opened on the rotating disk 7. The extension column 6 is located in the extrusion groove 8. A rotating shaft is installed on the rotating disk 7. 9. A bushing 10 is provided on the outer sleeve of the rotating shaft 9. The bushing 10 is installed inside the first outer shell 1 and the second outer shell 2. An installation sleeve 11 is installed on the outer sleeve of the rotating shaft 9. A limit piece 12 is installed on the outer sleeve of the installation sleeve 11. The rotating shaft 9 is rotatably connected inside the pressure shell 3. A sliding hole 17 is provided inside the pressure shell 3. A locking piece 13 is slidably connected inside the sliding hole 17. A main knob 14 is installed at the top of the rotating shaft 9. A side knob 16 is installed inside the gear bearing plate 4 on the rear side. A locking sleeve 15 installed on the back of the first outer shell 1 is provided on the outer sleeve of the side knob 16. A connecting seat 20 is installed on the outer arc surface of the intermediate seat 18. A first spring 21 is locked inside the connecting seat 20. The first spring 21 is locked inside the support plate 22. The support plate 22 is clamped inside the first outer shell 1 and the second outer shell 2.

[0022] First, assemble the device in the designated position using the screws on the main knob 14 and the side knob 16, and then assemble the gear carrier plate 4 with the disconnecting switch. When it is necessary to control the closing of the disconnecting switch, simply rotate the main knob 14. At this time, the main knob 14 drives the rotating shaft 9 and the rotating disk 7 to rotate, thereby causing the rotating disk 7 to press the extension column 6 and the sliding toothed plate 5 to move through the pressing groove 8. Simultaneously, the movement of the sliding toothed plate 5 drives the gear carrier plate 4 to rotate, thereby causing the gear carrier plate 4 to rotate and controlling the rotation of the disconnecting switch. At the same time, the gear carrier plate 4 drives the intermediate seat 18 and the connecting seat 20 to rotate. The gear bearing disk 4 drives the disconnect switch to rotate, completing the closing action. Then, it pulls the locking plate 13 to move upward. At this time, the locking plate 13 is locked in the limiting notch in the limiting plate 12. At this time, the closing process of the disconnect switch is safely completed. The rotating shaft 9 is supported by the upper and lower sides of the first housing 1 and the second housing 2, making the rotation process of the rotating shaft 9 smoother and more stable. It avoids the rotating shaft 9 from deflection and torsion due to the imbalance of the upper and lower bearing forces. This ensures that the rotating shaft 9 stably controls the closing and opening process of the disconnect switch through the gear bearing disk 4, ensuring that the switching process of the disconnect switch is stable and smooth. Furthermore, the locking plate 13 and the limiting plate 12 work together to limit the position of the limiting plate 12 and the gear bearing plate 4, thereby limiting the closing and opening positions of the disconnecting switch, ensuring the stability of the opening and closing states of the disconnecting switch, and thus ensuring that the disconnecting switch is in a safe and stable working state.

[0023] like Figures 1 to 3 As shown: The first outer shell 1 and the second outer shell 2 are provided with a rotating cavity. The rotating disk 7 is located in the rotating cavity. Two mounting slots 27 are opened on the inner wall of the rotating cavity. Pressure sensors 28 are installed in the mounting slots 27. The rotating disk 7 is located outside one of the pressure sensors 28. The pressure sensor 28 is electrically connected to the controller. An alarm 29 is installed on the pressure shell 3. The alarm 29 is electrically connected to the controller.

[0024] Due to machining and installation inaccuracies, the dimensions and elastic force of the two first springs 21 may become unbalanced on both sides. Furthermore, over long-term operation, the first springs 21 gradually fatigue and deform, causing them to rely on their own elastic force to control the rotation of the intermediate seat 18 and the gear bearing plate 4 inadequately, thus affecting the opening and closing process of the disconnecting switch. When it is necessary to control the disconnecting switch to close, the main knob 14 is directly rotated. At this time, the main knob 14 drives the rotating shaft 9 and the rotating disk 7 to rotate, causing the rotating disk 7 to press the extension column 6 and the sliding toothed plate 5 through the pressing groove 8. Simultaneously, the movement of the sliding toothed plate 5 drives the gear bearing plate 4 to rotate, thus causing the gear... The gear bearing plate 4 rotates and controls the rotation of the disconnecting switch. After the disconnecting switch is successfully closed, the rotating plate 7 presses back onto the pressure sensor 28. If the pressure sensor 28 does not detect that the pressing force of the rotating plate 7 meets the preset range value, then the rotating plate 7 has not rotated to the position of contacting the side wall of the rotating cavity. This indicates that the gear bearing plate 4 has not rotated to the correct position and the closing process of the disconnecting switch has not been completely completed. At this time, the controller controls the alarm 29 to work, which can detect whether the disconnecting switch has been closed, so that the disconnecting switch is accurately in the open or closed state, avoiding the situation where the working state position is not accurate enough and there is an operational danger, making the operation safer and more stable.

[0025] like Figures 8 to 9 As shown: the contact portions of the connecting seat 20 and the support plate 22 with the first spring 21 are all provided with a rubber layer 23.

[0026] During the process of the first spring 21 being squeezed and rotated by the intermediate seat 18, the rubber layer 23 can reduce the friction between the support plate 22 and the connecting seat 20 and the first spring 21, reduce the wear rate of the first spring 21, and prevent the first spring 21 from wobbling due to wear, so that the elastic force can be used to control the gear bearing disk 4 to rotate accurately. Furthermore, the rubber layer 23 can be squeezed and deformed, causing the first spring 21 to undergo fatigue deformation. After the first spring 21 squeezes the rubber layer 23, the first spring 21 can be removed and replaced by itself, making it convenient to replace the first spring 21.

[0027] like Figures 11 to 12As shown: A support sleeve 25 is installed on the outside of the rotating shaft 9. Electromagnets 26 are installed on both the left and right sides of the support sleeve 25. A groove 19 is opened on the outside of the middle seat 18 corresponding to the position of the rotating shaft 9. A magnetic plate 24 is installed in the groove 19. The rotation path of the magnetic plate 24 passes through the position of the electromagnet 26. The electromagnet 26 is electrically connected to the controller.

[0028] When the main knob 14 is turned and the alarm 29 sounds, the closing action of the disconnect switch is not complete. The controller controls the electromagnet 26 to work. When the electromagnet 26 works, it uses magnetic force to drive the magnetic plate 24, the intermediate seat 18 and the gear bearing plate 4 to rotate. The gear bearing plate 4 drives the sliding tooth plate 5 and the extension column 6 to move. The extension column 6 presses the rotating disk 7 to continue rotating. The rotating disk 7 rotates to the position of the pressure sensor 28. At this time, the rotating disk 7 and the gear bearing plate 4 have both rotated to the designated position, ensuring that the disconnect switch can be smoothly and accurately rotated to the closing or opening state, making the opening and closing operation of the disconnect switch smoother and more accurate, thereby ensuring the safety of subsequent operations.

[0029] like Figure 6 , Figure 8 and Figure 11 As shown: Damping mechanisms 30 are installed inside both the first outer shell 1 and the second outer shell 2. The two damping mechanisms 30 are arranged in a circumferential direction outside the rotating shaft 9. The damping mechanism 30 on the left is located outside the intermediate seat 18. The damping mechanism 30 is used to buffer the rotating intermediate seat 18.

[0030] After the two intermediate seats 18 cross the horizontal state, the first spring 21 releases its elastic force to control the rotation of the connecting seat 20 and the gear bearing plate 4. At this time, there is no need to manually control the main knob 14. The force applied by the gear bearing plate 4 to the sliding tooth plate 5 increases instantaneously, which leads to increased wear on the teeth between them and makes them prone to deformation or even breakage. The impact force between the teeth increases the gap between them, which will increase the vibration between the teeth and shorten their service life. The damping mechanism 30 is used to increase the resistance to the intermediate seats 18 that continue to rotate after crossing the horizontal state, so that the intermediate seats 18 and the gear bearing plate rotate stably, thereby ensuring the transmission accuracy and normal service life between the gear bearing plate 4 and the sliding tooth plate 5.

[0031] like Figure 10 As shown: The damping mechanism 30 includes a connecting cylinder 301, a base 305 is installed under the connecting cylinder 301, the base 305 is installed inside the first outer shell 1, a piston plate 302 is slidably connected inside the connecting cylinder 301, a crossbar 303 is installed outside the piston plate 302, the crossbar 303 is slidably connected inside the connecting cylinder 301, and a contact rod 304 is fixedly connected to one end of the crossbar 303 located outside the connecting cylinder 301. The contact rod 304 is used to contact the intermediate seat 18. A second spring 306 is installed outside the piston plate 302 and is installed on the inner wall of the connecting cylinder 301.

[0032] The second spring 306 buffers the movement of the piston plate 302, the crossbar 303 and the contact rod 304, and increases the damping of the rotation of the intermediate seat 18, making the process of the two intermediate seats 18 continuing to rotate beyond the horizontal state more smoothly.

[0033] like Figure 10 As shown: A sliding sealing ring is provided between the crossbar 303 and the connecting cylinder 301. A first connecting hole 307 and a second connecting hole 308 are provided under the connecting cylinder 301. The first connecting hole 307 and the second connecting hole 308 are located on the front and rear sides of the piston plate 302, respectively.

[0034] When the two connecting seats 20 continue to rotate beyond the horizontal state, the first spring 21 is in the process of releasing force. It uses its own elastic force to drive the connecting seat 20, the intermediate seat 18 and the gear bearing plate 4 to rotate. At this time, the intermediate seat 18 will press against the surface of the contact rod 304. When the contact rod 304 is pressed, it drives the piston plate 302 to move inside the connecting cylinder 301 through the crossbar 303. While the piston plate 302 moves, it compresses the gas inside the connecting cylinder 301 and discharges it through the second connecting hole 308. It also draws gas into the connecting cylinder 301 through the first connecting hole 307. Since the diameter of the first connecting hole 307 and the second connecting hole 308 is small, the gas flow rate is limited. Therefore, the moving speed of the piston plate 302, the crossbar 303 and the contact rod 304 is limited. This makes the rotation of the intermediate seat 18 after it crosses the horizontal state smooth, reduces the wear between the teeth of the gear bearing plate 4 and the sliding tooth plate 5, and ensures the accurate and stable operation of the transmission process, so that the opening and closing of the control isolating switch can be carried out smoothly and stably.

[0035] like Figure 10 As shown: A sliding contact layer is installed on the side of the contact rod 304 near the intermediate seat 18. The sliding contact layer is made of Teflon.

[0036] The sliding contact layer reduces the friction between the contact rod 304 and the intermediate seat 18, thereby reducing the wear rate of the intermediate seat 18 on the contact rod 304. This prevents the worn contact rod 304 from deviating from its final blocking position on the intermediate seat 18, ensuring that the intermediate seat 18 is blocked more smoothly and accurately by the contact rod 304.

[0037] like Figure 1 , Figure 4 and Figure 7 As shown: the contact portion of the first outer shell 1 and the second outer shell 2 is provided with a sealing ring, and the contact portion of the pressure shell 3 with the first outer shell 1 and the second outer shell 2 is provided with a sealing gasket.

[0038] The sealing gasket improves the sealing of the space formed between the first housing 1, the second housing 2, and the pressure shell 3, thereby preventing external dust and debris from entering the space between the first housing 1, the second housing 2, and the pressure shell 3. This ensures that dust and debris are not trapped between the teeth of the gear bearing plate 4 and the sliding tooth plate 5, resulting in a cleaner internal structure for the stable operating mechanism used in disconnect switches, and smooth transmission operation.

[0039] like Figure 2 , Figure 4 and Figure 6 As shown: the port of the extrusion groove 8 near the outer arc surface of the rotating disk 7 is attached to the surface of the extension column 6, and the part of the extrusion groove 8 away from the outer arc surface of the rotating disk 7 is larger than the extension column 6.

[0040] During operation, the device is first assembled in the designated position using the screws on the outside of the main knob 14 and the side knob 16, and the gear carrier plate 4 is assembled with the disconnecting switch. When it is necessary to control the closing of the disconnecting switch, the main knob 14 is turned directly. At this time, the main knob 14 drives the rotating shaft 9 and the rotating disk 7 to rotate, so that the rotating disk 7 squeezes the extension column 6 and the sliding tooth plate 5 through the extrusion groove 8. At the same time, the sliding tooth plate 5 drives the gear carrier plate 4 to rotate, so that the gear carrier plate 4 rotates and controls the disconnecting switch to rotate. At the same time, the gear carrier plate 4 drives the intermediate seat 18 and the connecting seat 20 to rotate. As the two connecting seats 20 rotate to a horizontal position, they gradually compress and shorten the first spring 21. At this time, the first spring 21 is in a storage process, overcoming its elastic force. When the two connecting seats 20 continue to rotate beyond the horizontal position, the first spring 21 is in a release process, using its own elastic force to drive the connecting seats 20, intermediate seats 18, and gear bearing disk 4 to rotate. At this time, the intermediate seat 18 will press against the surface of the contact rod 304. When the contact rod 304 is compressed, it drives the piston plate 302 to move inside the connecting cylinder 301 through the crossbar 303. As the piston plate 302 moves, it compresses the gas inside the connecting cylinder 301 and discharges it through the second connecting hole 308, and draws gas into the connecting cylinder 301 through the first connecting hole 307. The smaller diameters of the connecting hole 307 and the second connecting hole 308 restrict the flow rate of the gas, thus limiting the movement speed of the piston plate 302, the cross rod 303, and the contact rod 304. This allows the intermediate seat 18 to rotate smoothly after crossing the horizontal state, preventing excessive changes in the contact force between the gear bearing plate 4 and the sliding tooth plate 5 and reducing damage to the teeth. After the first spring 21 is fully released, the gear bearing plate 4 is rotated to its limit position, completing the closing operation of the isolating switch. This makes the rotation of the main knob 14 more stable and smooth. After the two connecting seats 20 cross the horizontal state, the closing process can be achieved by the elastic force of the first spring 21, without the need for manual control to apply torque, making the operation simple. If the pressure sensor 28 does not detect that the squeezing force of the rotating disk 7 meets the preset range value, then the rotating disk 7 has not rotated to the position of fitting the side wall of the rotating cavity, indicating that the gear bearing disk 4 has not rotated to the correct position and the closing process of the disconnecting switch has not been completely completed. At this time, the controller controls the alarm 29 to work and controls the electromagnet 26 to work. The magnetic force between the electromagnet 26 and the magnetic plate 24 will attract the intermediate seat 18 to continue rotating. At this time, the gear bearing disk 4 continues to rotate. At the same time, the gear bearing disk 4 drives the sliding tooth plate 5 and the extension column 6 to move. The extension column 6 squeezes the rotating disk 7 to continue rotating. The rotating disk 7 rotates to the position of squeezing the pressure sensor 28. At this time, both the rotating disk 7 and the gear bearing disk 4 rotate to the designated position. Then, the locking piece 13 is pulled to move upward. At this time, the locking piece 13 is stuck in the limiting notch in the limiting piece 12. At this time, the closing process of the disconnecting switch is safely completed.

[0041] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A stable operating mechanism for a disconnecting switch, comprising a first housing (1) and a second housing (2); characterized in that: The first outer shell (1) is located on the back of the second outer shell (2). The first outer shell (1) and the second outer shell (2) are connected by bolts. A pressure shell (3) is installed on the first outer shell (1) and the second outer shell (2). Gear bearing disks (4) are rotatably connected inside the first outer shell (1) and the second outer shell (2). Two intermediate seats (18) are connected between the two gear bearing disks (4). Sliding tooth plates (5) mesh on the two gear bearing disks (4). The sliding tooth plates (5) are slidably connected inside the first outer shell (1) and the second outer shell (2). An extension column (6) is installed on the sliding tooth plate (5). A rotating disk (7) is provided on the sliding tooth plate (5). An extrusion groove (8) is opened on the rotating disk (7). The extension column (6) is located in the extrusion groove (8). A rotating shaft (9) is installed on the rotating disk (7). A bushing (10) is provided on the rotating shaft (9). The sleeve (10) is installed inside the first outer shell (1) and the second outer shell (2). The rotating shaft (9) is fitted with an installation sleeve (11). The installation sleeve (11) is fitted with a limiting piece (12). The rotating shaft (9) is rotatably connected inside the pressure shell (3). The pressure shell (3) has a sliding hole (17). The sliding hole (17) is slidably connected with a locking piece (13). The top of the rotating shaft (9) is fitted with a main knob (14). The gear bearing plate (4) on the rear side is fitted with a side knob (16). The side knob (16) is fitted with a locking sleeve (15) installed on the back of the first outer shell (1). The outer arc surface of the intermediate seat (18) is fitted with a connecting seat (20). The connecting seat (20) is fitted with a first spring (21). The first spring (21) is fitted inside the support plate (22). The support plate (22) is sandwiched inside the first outer shell (1) and the second outer shell (2).

2. The stable operating mechanism for a disconnecting switch according to claim 1, characterized in that: The first housing (1) and the second housing (2) are provided with a rotating cavity. The rotating disk (7) is located in the rotating cavity. Two mounting slots (27) are opened on the inner wall of the rotating cavity. A pressure sensor (28) is installed in the mounting slot (27). The rotating disk (7) is located outside one of the pressure sensors (28). The pressure sensor (28) is electrically connected to the controller. An alarm (29) is installed on the pressure shell (3). The alarm (29) is electrically connected to the controller.

3. A stable operating mechanism for a disconnecting switch according to claim 2, characterized in that: The contact portions of the connecting seat (20) and the support plate (22) with the first spring (21) are all provided with rubber layers (23).

4. A stable operating mechanism for a disconnecting switch according to claim 3, characterized in that: A support sleeve (25) is installed outside the rotating shaft (9). Electromagnets (26) are installed on both the left and right sides of the support sleeve (25). A groove (19) is provided on the outside of the intermediate seat (18) corresponding to the position of the rotating shaft (9). A magnetic plate (24) is installed in the groove (19). The rotation path of the magnetic plate (24) passes through the position of the electromagnet (26). The electromagnet (26) is electrically connected to the controller.

5. A stable operating mechanism for a disconnecting switch according to claim 4, characterized in that: Damping mechanisms (30) are installed inside the first housing (1) and the second housing (2). The two damping mechanisms (30) are arranged in a circumferential direction outside the rotating shaft (9). The damping mechanism (30) on the left is located outside the intermediate seat (18). The damping mechanism (30) is used to buffer the rotating intermediate seat (18).

6. A stable operating mechanism for a disconnecting switch according to claim 5, characterized in that: The damping mechanism (30) includes a connecting cylinder (301), a base (305) is installed under the connecting cylinder (301), the base (305) is installed inside the first outer shell (1), a piston plate (302) is slidably connected inside the connecting cylinder (301), a crossbar (303) is installed outside the piston plate (302), the crossbar (303) is slidably connected inside the connecting cylinder (301), a contact rod (304) is fixedly connected to one end of the crossbar (303) outside the connecting cylinder (301), the contact rod (304) is used to contact the intermediate seat (18), and a second spring (306) is installed outside the piston plate (302), the second spring (306) is installed on the inner wall of the connecting cylinder (301).

7. A stable operating mechanism for a disconnecting switch according to claim 6, characterized in that: A sliding sealing ring is provided between the crossbar (303) and the connecting cylinder (301). The connecting cylinder (301) has a first connecting hole (307) and a second connecting hole (308) at the bottom. The first connecting hole (307) and the second connecting hole (308) are located on the front and rear sides of the piston plate (302), respectively.

8. A stable operating mechanism for a disconnecting switch according to claim 7, characterized in that: The contact rod (304) has a sliding contact layer installed on the side near the intermediate seat (18), and the sliding contact layer is made of Teflon.

9. A stable operating mechanism for a disconnecting switch according to claim 8, characterized in that: The contact portion of the first outer shell (1) and the second outer shell (2) is provided with a sealing ring, and the contact portion of the pressure shell (3) with the first outer shell (1) and the second outer shell (2) is provided with a sealing gasket.

10. A stable operating mechanism for a disconnecting switch according to claim 9, characterized in that: The port of the extrusion groove (8) near the outer arc surface of the rotating disk (7) is attached to the surface of the extension column (6), and a portion of the extrusion groove (8) away from the outer arc surface of the rotating disk (7) is larger than the extension column (6).

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