Modular electrically operated multi-position disconnecting switch

Abstract

The application discloses a modular electrically-operated multi-station disconnecting switch and particularly relates to the field of electrical equipment, which comprises a supporting column, the top of the supporting column is provided with a steel structure base, the top of the steel structure base is fixedly connected with a rotating seat, the top of the rotating seat is rotatably sleeved with a rotating sleeve, the top of the rotating sleeve is provided with insulators, the number of the insulators is multiple, every two insulators are symmetrically arranged on the two sides of the steel structure base, a transmission assembly is arranged between the two symmetrically arranged insulators, a grounding assembly is arranged on the outer side of the transmission assembly, the transmission assembly comprises two connecting heads which are fixedly connected to the inner sides of the two rotating seats, and the outer side of the connecting head is fixedly connected with a limiting piece. The application significantly reduces the number of movable joints, reduces the probability of aging and failure, and realizes the optimization of the grounding step through the connection of the grounding assembly and the transmission assembly.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and more specifically, to a modular electrically operated multi-position disconnect switch. Background Technology

[0002] A disconnector is a switching device mainly used for "isolating power supply, switching operations, and connecting and disconnecting small current circuits." It has no arc-extinguishing function. During the maintenance of electrical equipment, it provides an electrical interval and is a clearly visible disconnect point to ensure the personal safety of maintenance personnel. To improve convenience and safety, most disconnectors now use electric methods to open and close multi-position disconnectors, which can effectively improve the safety of disconnector operation.

[0003] Currently, multi-position electric disconnect switches are driven by multiple sets of linkages, resulting in numerous moving joints and structural components. Over long-term use, some moving joints are prone to aging, leading to reduced flexibility or malfunctions that affect the normal operation of the electric disconnect switch. Although current disconnect switches have mechanical interlocking as a guarantee, grounding still requires additional operation after the disconnect switch is opened. This not only increases the number of operation steps but also carries the risk of omissions leading to failure to ground, which is detrimental to improving safety. Therefore, to address this issue, this application provides a modular electric-operated multi-position disconnect switch to meet the requirements. Summary of the Invention

[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide a modular electrically operated multi-position disconnecting switch. By significantly reducing the number of moving joints through the transmission component, the probability of aging and failure is reduced. Furthermore, by connecting the grounding component to the transmission component, the disconnecting switch is disconnected and grounded sequentially, thus optimizing the grounding steps to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A modular electrically operated multi-position disconnect switch includes a support column, a steel structure base at the top of the support column, a rotating seat fixedly connected to the top of the steel structure base, a rotating sleeve rotatably sleeved on the top of the rotating seat, and an insulator at the top of the rotating sleeve. Multiple insulators are arranged in a symmetrical pattern on both sides of the steel structure base, with a transmission assembly between each pair of symmetrically arranged insulators. A grounding assembly is located on the outer side of the transmission assembly. The transmission assembly includes two connectors fixedly connected to the inner sides of the rotating seats on both sides. A limiting component is fixedly connected to the outer side of each connector. A connecting rod is rotatably connected to one end of each connector, and an inner extension rod is fixedly connected to one end of the connecting rod. A central shaft is slidably connected to the outer side of the inner extension rod. Support frames are fixedly connected to the bottom of both connecting rods on both sides. L-shaped limiting frames are fixedly connected to the adjacent ends of the two support frames, and the two L-shaped limiting frames are arranged in a fitted configuration.

[0006] In the above technical solution, a limiting kit is fixedly connected to the top of the central shaft, a transmission slide rod is slidably connected to the inner side of the limiting kit, a transmission top rod is fixedly connected to the outer side of the transmission slide rod, a top block is fixedly connected to one end of the transmission top rod, and the top block is arranged in an abutting position with the two L-shaped limiting frames.

[0007] By replacing the current transmission method of electric disconnect switches with transmission components, the number of moving joints required for transmission is reduced, and smaller parts are not used, thereby reducing the probability of failure and the problem of transmission inflexibility due to aging.

[0008] In the above technical solution, the grounding component further includes a side shaft rod rotatably connected to one side of the steel structure base, and a plurality of mounting blocks are fixedly connected to the outside of the side shaft rod, and a grounding switch is fixedly connected inside the plurality of mounting blocks.

[0009] In the above technical solution, a hinged transmission component is fixedly connected to the outer side of the side shaft rod, and a transmission connecting strip is rotatably connected to the inner side of the hinged transmission component. One end of the transmission connecting strip is fixedly connected to a through slot frame.

[0010] In the above technical solution, a limiting plate is fixedly connected to the outer side of the transmission slide rod, a connecting bottom block is fixedly connected to the bottom of the limiting plate, a transmission bottom column is fixedly connected to one end of the connecting bottom block, and the transmission bottom column is slidably connected to the inner side of the through slot frame.

[0011] In the above technical solution, the bottom of the transmission column is fixedly connected to a limiting chassis, and the limiting chassis is slidably connected to the bottom of the through slot frame.

[0012] By integrating the grounding process into the disconnection process of the disconnecting switch through grounding components, grounding can be performed promptly after the disconnecting switch is disconnected, achieving the goal of disconnecting the disconnecting switch and grounding sequentially, ensuring stable grounding, and reducing operational steps to improve ease of operation.

[0013] The technical effects and advantages of this invention are as follows: This invention significantly reduces the number of moving joints by setting up transmission components, making the transmission steps simpler and thus reducing the probability of failure. In addition, most of the components are integrated structures with no small parts, which can reduce the problem of reduced flexibility due to component aging. By setting up grounding components, the disconnection of the isolating switch and grounding can be carried out sequentially. By integrating the disconnection of the isolating switch and grounding into the same step, it can be ensured that grounding can be carried out in a timely manner after the isolating switch is disconnected, avoiding the occurrence of non-grounding due to omissions in the steps. Furthermore, performing it in the same step can reduce the number of operation steps and improve convenience. When other operations are required without grounding, the grounding can be manually stopped by manually stopping the operation of the transmission mechanism after the disconnecting switch is opened. This allows for various electrical operations. Since stopping the grounding requires additional operation to close the transmission mechanism, additional operation is required to stop the grounding. This ensures that multiple electrical operations can be retained to the greatest extent while guaranteeing grounding safety. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a modular electrically operated multi-position disconnector; Figure 2 This is a schematic diagram of the transmission assembly. Figure 3 for Figure 2 Enlarged view of the A-section structure; Figure 4 This is a schematic diagram of the grounding assembly. Figure 5 for Figure 4 Enlarged view of the structure of section B; Figure 6 This is a front structural diagram of the transmission vertical rod and the circumferential transmission bar; Figure 7 This is a schematic diagram of the top structure of the grounding component.

[0015] The attached diagram is labeled as follows: 1. Support column; 2. Steel structure base; 3. Rotating seat; 4. Insulator; 5. Connector; 6. Limiting component; 7. Connecting end rod; 8. Inner extension rod; 9. Central shaft rod; 10. Support frame; 11. L-shaped limiting frame; 12. Limiting kit; 13. Transmission slide rod; 15. Transmission top rod; 16. Top block; 17. Transmission slot block; 18. Transmission vertical rod; 19. Transmission mechanism; 20. Circumferential transmission bar; 21. Sliding column; 22. Side shaft rod; 23. Mounting block; 24. Grounding switch; 25. Hinged transmission component; 26. Transmission connecting bar; 27. Through slot frame; 28. Limiting plate; 29. ​​Connecting bottom block; 30. Transmission bottom column; 31. Limiting base plate; 32. Support hanger; 33. Rotating sleeve; 34. Stationary contact; 35. Moving contact; 36. Grounding switch. Detailed Implementation

[0016] 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.

[0017] Refer to the instruction manual appendix Figures 1-7 As shown, a modular electrically operated multi-position disconnect switch according to an embodiment of the present invention includes a support column 1, a steel structure base 2 on the top of the support column 1, a rotating seat 3 fixedly connected to the top of the steel structure base 2, a rotating sleeve 33 rotatably sleeved on the top of the rotating seat 3, a bearing between the rotating seat 3 and the rotating sleeve 33 to ensure that the rotating sleeve 33 can rotate flexibly, an insulator 4 on the top of the rotating sleeve 33, the number of insulators 4 is set to multiple, every two insulators 4 are symmetrically distributed on both sides of the steel structure base 2, a stationary contact 34 and a moving contact 35 are respectively installed on the top of the two side insulators 4, the stationary contact 34 and the moving contact 35 are plugged in, and a grounding switch 36 is fixedly connected to one side of the stationary contact 34.

[0018] When the disconnecting switch is disconnected, the rotating sleeve 33 drives the insulator 4 to rotate, thereby causing the stationary contact 34 to lose connection with the moving contact 35, thus realizing the disconnection operation of the electric disconnecting switch.

[0019] A main transmission assembly is provided on the outside of the support column 1. The main transmission assembly includes a transmission vertical rod 18 rotatably connected to the outside of the support column 1. A transmission mechanism 19 is provided at the bottom of the transmission vertical rod 18. The transmission mechanism 19 is located on the outside of the support column 1. A circumferential transmission bar 20 is fixedly connected to the top of the transmission vertical rod 18. A support hanger 32 is fixedly connected to the outside of the transmission slide bar 13. A transmission groove block 17 is slidably connected to the bottom of the support hanger 32. A sliding column 21 is fixedly connected to one end of the circumferential transmission bar 20. The sliding column 21 is slidably connected to the inside of the transmission groove block 17.

[0020] It should be noted that the main drive assembly has the same structure and similarity as the main drive method of the current electric disconnect switch. The transmission mechanism 19 and the transmission vertical rod 18 have the same operating structure as the current electric disconnect switch. In use, the circumferential transmission bar 20 can be fixed to the top of the transmission vertical rod 18, which can reduce the modification of the current electric disconnect switch. Moreover, this device has the same main drive method as the current electric disconnect switch, so it can also have good applicability and significantly reduce incompatibility when it is widely used. When the disconnect switch needs to be disconnected, the transmission mechanism 19 is activated to rotate the transmission vertical rod 18, which causes the circumferential transmission bar 20 to drive the sliding column 21 to rotate in a circle. At the same time, the sliding column 21 slides on the inner side of the transmission groove block 17, thereby causing the transmission groove block 17 to move, which in turn causes the transmission sliding rod 13 to move, thus driving the transmission assembly to disconnect the disconnect switch.

[0021] Multiple sets of symmetrically arranged insulators 4 are equipped with transmission components between each pair of insulators 4. A grounding component is located on the outer side of each transmission component. The transmission component includes two connectors 5 fixedly connected to the inner sides of the rotating seats 3 on both sides. A limiting member 6 is fixedly connected to the outer side of each connector 5. The inner contour of the limiting member 6 matches the outer contour of the connecting end rod 7. The limiting member 6 limits the angle between the connector 5 and the connecting end rod 7, ensuring that the angle between them can only be reduced to ninety degrees. One end of each connector 5 is rotatably connected to the connecting end rod 7, and one end of the connecting end rod 7 is fixedly connected to an inner extension rod 8. A central shaft rod 9 is slidably connected to the outer side of the inner extension rod 8. The inner extension rods 8 on both sides are respectively... The two ends of the central shaft 9 are slidably connected. The bottom of the connecting rods 7 on both sides are fixedly connected to the support frame 10. The two support frames 10 are fixedly connected to the ends of the two support frames 10 that are close to each other. The two L-shaped limit frames 11 fit together to form a rectangular outline, so that the top block 16 can contact the two L-shaped limit frames 11 at the same time, and the two L-shaped limit frames 11 can move to the sides at the same time. The top of the central shaft 9 is fixedly connected to the limit kit 12. The inner side of the limit kit 12 is slidably connected to the transmission slide rod 13. The outer side of the transmission slide rod 13 is fixedly connected to the transmission top rod 15. One end of the transmission top rod 15 is fixedly connected to the top block 16. The top block 16 is set in an abutting position with the two L-shaped limit frames 11.

[0022] It should be noted that, when the main transmission assembly drives the transmission slide rod 13 to slide to one side, the transmission slide rod 13 simultaneously drives the transmission push rod 15 to push the two L-shaped limit brackets 11, thereby causing the connecting end rods 7 at both ends to drive the rotating sleeves 33 to rotate through the connecting heads 5, which in turn causes the insulators 4 on both sides to rotate. While the rotating sleeves 33 are rotating, the connecting end rods 7 gradually move away from the central shaft rod 9, and the inner extension rods 8 slide out from the inside of the central shaft rod 9. At the same time, the connecting heads 5 rotate inside the connecting end rods 7, so that the rotating sleeves 33 on both sides can move forward while the central shaft rod 9 is kept in a horizontal displacement. When the rotating sleeve 33 rotates to 90 degrees, the angle between the connector 5 and the connecting rod 7 is also 90 degrees. At this time, the connecting rod 7 contacts the limiting member 6. Under the limitation of the limiting member 6, the connector 5 and the connecting rod 7 are fixed at 90 degrees. This ensures that after the insulators 4 on both sides have rotated, the stationary contact 34 and the moving contact 35 are completely disconnected. This significantly reduces the number of moving joints through the transmission assembly, making the transmission steps simpler and reducing the probability of failure. Moreover, most of the components are integrated structures without small parts, which can reduce the problem of reduced flexibility due to component aging.

[0023] Furthermore, the grounding assembly includes a side shaft 22 rotatably connected to one side of the steel structure base 2. Multiple mounting blocks 23 are fixedly connected to the outer side of the side shaft 22. Grounding switches 24 are fixedly connected inside each mounting block 23. A hinged transmission component 25 is fixedly connected to the outer side of the side shaft 22. A transmission connecting strip 26 is rotatably connected to the inner side of the hinged transmission component 25. One end of the transmission connecting strip 26 is fixedly connected to a through-slot frame 27. The inner contour of the through-slot frame 27 is formed by a combination of straight and inclined slots. A limiting plate 28 is fixedly connected to the outer side of the movable slide rod 13. A connecting base block 29 is fixedly connected to the bottom of the limiting plate 28. A transmission base column 30 is fixedly connected to one end of the connecting base block 29. The transmission base column 30 is slidably connected to the inner side of the through slot frame 27. A limiting base plate 31 is fixedly connected to the bottom of the transmission base column 30. The limiting base plate 31 is slidably connected to the bottom of the through slot frame 27. The limiting base plate 31 limits the through slot frame 27, so that the lowest height of the through slot frame 27 is kept above the limiting base plate 31.

[0024] It should be noted that, as the connecting rods 7 at both ends of the central shaft 9 gradually move away from the central shaft 9, they simultaneously drive the L-shaped limiting frames 11 to move away through the support frame 10. This causes the two L-shaped limiting frames 11 to gradually move away from each other. When the two L-shaped limiting frames 11 lose contact, the insulator 4 rotates to ninety degrees, and the top block 16 loses contact with the two L-shaped limiting frames 11. At this time, the top block 16 can slide to one side between the two L-shaped limiting frames 11. Simultaneously, when the transmission slide rod 13 slides to one side, it drives the transmission bottom column 30 to slide within the slot frame 27. When the insulator 4 rotates ninety degrees and the top block 16 can slide between the two L-shaped limiting frames 11, the top block 16 will not cause the insulator 4 to continue rotating. The transmission bottom column 30 simultaneously slides into the inclined profile of the slot frame 27, and then moves along the inclined profile. The downward movement causes the through-slot frame 27 to move the transmission connecting bar 26 to one side, thereby causing the hinged transmission component 25 to rotate through the transmission connecting bar 26 and causing the side shaft rod 22 to rotate synchronously. After the hinged transmission component 25 rotates 90 degrees, it stops rotating. At this time, the mounting block 23 and the grounding switch 24 rotate 90 degrees at the same time. Since the grounding switch 36 is located above the grounding switch 24 when the insulator 4 drives the stationary contact 34 to rotate, it will be inserted into the inside of the grounding switch 36 when the grounding switch 24 rotates, thus achieving grounding. This realizes the sequential operation of disconnecting the isolating switch and grounding. By integrating the disconnecting of the isolating switch and grounding into the same step, it can be ensured that grounding can be carried out in a timely manner after the isolating switch is disconnected, avoiding the occurrence of non-grounding due to omissions in the steps. Moreover, by performing it in the same step, the operation steps can be reduced and the convenience can be improved.

[0025] When other operations are required without grounding, the grounding can be manually stopped by manually stopping the operation of the transmission mechanism 19 after the disconnecting switch is opened. This allows for various electrical operations. Since stopping the grounding requires additional operation to close the transmission mechanism 19, additional operation is required to stop the grounding. This ensures that multiple electrical operations can be maintained to the greatest extent while guaranteeing grounding safety.

[0026] When the disconnecting switch needs to be connected, the transmission mechanism 19 causes the transmission vertical rod 18 to flip, causing the transmission slide rod 13 to move in the opposite direction. This allows the side shaft rod 22 to flip, causing the grounding knife switch 24 to separate and reset from the grounding switch 36. Then, the limit plate 28 pushes the limit kit 12, causing the central shaft rod 9 to move in the opposite direction. This causes the connecting end rods 7 at both ends to drive the rotating sleeve 33 to flip and reset, thereby causing the insulator 4 to rotate and reset. The stationary contact 34 and the moving contact 35 are reconnected, completing the cycle of disconnection and connection.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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 modular electrically operated multi-position disconnect switch, comprising a support column (1), characterized in that, The top of the support column (1) is provided with a steel structure base (2), the top of the steel structure base (2) is fixedly connected with a rotating seat (3), the top of the rotating seat (3) is rotatably sleeved with a rotating sleeve (33), the top of the rotating sleeve (33) is provided with an insulator (4), the number of the insulator (4) is set to multiple, and every two insulators (4) are symmetrically distributed on both sides of the steel structure base (2). A transmission component is provided between the two insulators (4) arranged symmetrically in multiple groups. A grounding component is provided on the outside of the transmission component. The transmission component includes two connectors (5) fixedly connected to the inside of the rotating seats (3) on both sides. A limit member (6) is fixedly connected to the outside of the connector (5). A connecting end rod (7) is rotatably connected to one end of the connector (5). An inner extension rod (8) is fixedly connected to one end of the connecting end rod (7). A central shaft rod (9) is slidably connected to the outside of the inner extension rod (8). A support frame (10) is fixedly connected to the bottom of the connecting end rods (7) on both sides. Two support frames (10) are fixedly connected to L-shaped limiting frames (11) at their close ends. The two L-shaped limiting frames (11) are arranged in a close fit. A limiting kit (12) is fixedly connected to the top of the central shaft (9). A transmission slide rod (13) is slidably connected to the inner side of the limiting kit (12). A transmission top rod (15) is fixedly connected to the outer side of the transmission slide rod (13). A top block (16) is fixedly connected to one end of the transmission top rod (15). The top block (16) is in a contacting position with the two L-shaped limiting frames (11). The grounding assembly includes a side shaft (22) rotatably connected to one side of the steel structure base (2), and a plurality of mounting blocks (23) are fixedly connected to the outside of the side shaft (22), and a grounding switch (24) is fixedly connected inside the plurality of mounting blocks (23). The outer side of the side shaft (22) is fixedly connected to a hinged transmission component (25), and the inner side of the hinged transmission component (25) is rotatably connected to a transmission connecting strip (26). One end of the transmission connecting strip (26) is fixedly connected to a through slot frame (27).

2. The modular electrically operated multi-position disconnect switch according to claim 1, characterized in that, The outer side of the transmission slide rod (13) is fixedly connected to a limiting plate (28), the bottom of the limiting plate (28) is fixedly connected to a connecting block (29), one end of the connecting block (29) is fixedly connected to a transmission base column (30), and the transmission base column (30) is slidably connected to the inner side of the through slot frame (27).

3. A modular electrically operated multi-position disconnect switch according to claim 2, characterized in that, The bottom of the transmission base column (30) is fixedly connected to the limiting chassis (31), and the limiting chassis (31) is slidably connected to the bottom of the through slot frame (27).

4. A modular electrically operated multi-position disconnect switch according to claim 1, characterized in that, The top of the insulators (4) on both sides are respectively equipped with a stationary contact (34) and a moving contact (35). The stationary contact (34) and the moving contact (35) are arranged in a plug-in manner. A grounding switch (36) is fixedly connected to one side of the stationary contact (34).

5. A modular electrically operated multi-position disconnect switch according to claim 1, characterized in that, A main transmission assembly is provided on the outside of the support column (1). The main transmission assembly includes a transmission vertical rod (18) rotatably connected to the outside of the support column (1). A transmission mechanism (19) is provided at the bottom of the transmission vertical rod (18). The transmission mechanism (19) is located on the outside of the support column (1).

6. A modular electrically operated multi-position disconnect switch according to claim 5, characterized in that, The top of the transmission vertical rod (18) is fixedly connected to a circumferential transmission bar (20), the outer side of the transmission slide rod (13) is fixedly connected to a support hanger (32), the bottom of the support hanger (32) is slidably connected to a transmission groove block (17), one end of the circumferential transmission bar (20) is fixedly connected to a sliding column (21), and the sliding column (21) is slidably connected to the inner side of the transmission groove block (17).

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