An electric switching device

Abstract

This utility model provides an electric switching device, relating to the field of switching. The solution includes a base plate, and further includes: a first driving member, mounted on the base plate and connected to a first rotating drum, which is rotatably and vertically mounted on the base plate and used to drive a circuit breaker to move; a second driving member, mounted on the base plate and connected to a second rotating drum, which can drive the second rotating drum to rotate, and the second rotating drum is axially movable and vertically mounted on the base plate, used to close or open a grounding switch; and a cover opening assembly, including a pusher seat and a magnetic seat, mounted in a mounting groove on the base plate and used to attract the high-voltage switchgear. This utility model can replace manual operation, greatly reducing safety risks.

Description

Technical Field

[0001] This utility model relates to the field of switching, and in particular to an electric switching device. Background Technology

[0002] A high-voltage substation is a power distribution hub for an industrial enterprise. Its normal operation plays a decisive role in the production and equipment safety of the entire plant. When high-voltage switchgear is overhauled, preventive tests are conducted, or when a high-voltage substation malfunctions, switching operations are required. Switching operations refer to a series of orderly and rigorous operations that change the operating state of electrical equipment or power system from one operating state to another.

[0003] In existing technology, switching operations require the issuance of a switching operation ticket first. The switching operation ticket is issued manually and is written based on the long-term accumulated experience of technicians in operating switching operations, combined with factors such as safe operating procedures and the performance of high-voltage electrical equipment, according to a specific switching task. The switching operation can only be carried out after a correct switching operation ticket is obtained. During the execution process, it is required that one person supervises and another person operates. The supervisor reads the operation ticket aloud, and the operator repeats the instructions. Only after confirming that there are no errors can the operation be carried out.

[0004] However, when using the above methods, due to the poor technical level of the switching operators, their unfamiliarity with the system to be switched, their lack of understanding of the changes in the power grid operation mode after the switching, their failure to grasp the key points of the switching operation, their insufficient attention to the critical links that are prone to errors during the switching process, and even their lack of responsibility, operational errors may occur. Once an operational error occurs, it directly endangers the safety of equipment and personnel. Furthermore, manual operation is inefficient, prone to errors, and wastes a lot of manpower and time. Utility Model Content

[0005] In order to solve the technical problem of safety risks when switching operations are performed manually in the prior art, this utility model provides an electric switching device that can replace manual operation and greatly reduce safety risks.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an electric switching device, including a base plate for connecting to a high-voltage electrical cabinet, and further including: a first driving member, which is disposed on the base plate and connected to a first rotating cylinder, the first rotating cylinder being rotatably disposed on the base plate and extending vertically from the base plate, the first rotating cylinder being used to drive a circuit breaker to move; a second driving member, which is disposed on the base plate and connected to a second rotating cylinder, the second driving member being able to drive the second rotating cylinder to rotate, the second rotating cylinder being axially movable on the base plate and extending vertically from the base plate, the second rotating cylinder being used to close or open a grounding switch; and a cover opening assembly, which includes a push seat movably disposed on the base plate, the second rotating cylinder being located within the cavity of the push seat, the push seat being able to approach and move away from the second rotating cylinder, and a push plate being provided at the end of the push seat extending out of the base plate, the push plate being used to push the grounding hole sliding plate on the high-voltage electrical cabinet.

[0007] This invention, through the synergistic action of the first driving component, the second driving component, and the cover opening assembly, can replace manual operation, resulting in high reliability and low safety risk.

[0008] Furthermore, the first driving component includes a first motor, which is mounted on a mounting plate on the base plate and is connected to the first rotating drum.

[0009] Furthermore, the first driving component includes a second motor, which is mounted on a bracket on the base plate and connected to a driving pulley. The driving pulley is connected to a driven pulley via a transmission belt, and the driven pulley is rotatably mounted on a support seat on the base plate. The second rotating drum passes through the driven pulley and the support seat. A guide key is provided on the circumferential surface of the second rotating drum along its own length direction. The guide key can slide within the keyway of the driven pulley. A lifting plate is provided on the second rotating drum, and the lifting plate is connected to a driving assembly, which is mounted on the base plate.

[0010] Furthermore, the drive assembly includes a third motor mounted on the base plate. The third motor is connected to a drive wheel, which is rotatably mounted on the base plate via a bracket. A steel wire rope is wound around the drive wheel, passing under a roller on the side of the lifting plate and connecting to one end of the push seat. The connection point between the steel wire rope and the push seat is lower than the high point of the drive wheel. The other end of the push seat is connected to the lifting plate via a first drive spring, and the lifting plate is connected to the base frame via a second drive spring. The second drive spring and the first drive spring are arranged in a V-shape.

[0011] This utility model achieves the tensioning effect on the push seat and the supporting effect on the lifting plate through the coordinated action of the third motor, drive wheel, wire rope, drive spring one and drive spring two. When the wire rope is depressurized, the push seat moves horizontally and extends under the action of the inclined drive spring one and drive spring two, and the second rotating drum extends. This configuration can reduce the number of corresponding motors, reduce manufacturing costs, and improve reliability.

[0012] Furthermore, the push seat is provided with a guide groove, and the lifting plate is provided with a guide rod. The guide rod extends into the guide groove. The guide groove is L-shaped and includes a horizontal section and a vertical section. The upper ends of the horizontal section and the vertical section are connected. The opening of the guide groove faces the drive spring.

[0013] Furthermore, the support base is provided with a second guide groove, which includes a second horizontal section and a second vertical section. The second horizontal section is connected to the lower end of the second vertical section. The opening of the second guide groove faces the second drive spring. A second guide rod is provided on the outside of the push base, and the second guide rod can extend out from the second guide groove.

[0014] Furthermore, two positioning posts are also provided on the outer side of the base plate.

[0015] Furthermore, the two positioning posts have different shapes.

[0016] This invention avoids the problem of installing the device upside down by setting two positioning posts of different shapes.

[0017] Furthermore, it also includes a magnetic base, which is disposed on the base plate and is used to attract the high-voltage electrical cabinet.

[0018] This invention uses a magnetic base to facilitate the efficient installation and removal of the device from the high-voltage electrical cabinet.

[0019] Furthermore, it also includes a protective cover, which is disposed on the base plate.

[0020] As can be seen from the above technical solutions, this utility model has the following advantages:

[0021] This utility model provides an electric switching device. Through the coordinated action of the first driving component, the second driving component, and the cover opening assembly, it can replace manual operation, with high reliability and low safety risk. Through the coordinated action of the third motor, the drive wheel, the wire rope, the first drive spring, and the second drive spring, the device achieves the tensioning effect on the push seat and the support effect on the lifting plate. When the wire rope is depressurized, the push seat moves horizontally and extends under the action of the inclined first drive spring and the second drive spring, and the second rotating drum extends. This configuration reduces the number of corresponding motors, lowers manufacturing costs, and increases reliability. By setting two positioning columns of different shapes, the device can be installed in reverse order. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0024] Figure 2 This is a schematic diagram of the structure after removing the protective cover in a specific embodiment of this utility model.

[0025] Figure 3 This is a schematic diagram of the assembly structure of the support base, push base, second rotating drum, third motor and drive wheel in a specific embodiment of this utility model.

[0026] Figure 4 This is a schematic diagram of the assembly structure of the support base, the second rotating drum, and the drive wheel in a specific embodiment of this utility model.

[0027] Figure 5 This is a schematic diagram of the structure of the push seat in a specific embodiment of this utility model.

[0028] Figure 6 This is a schematic diagram of the structure of the second rotating drum in a specific embodiment of this utility model.

[0029] Figure 7 This is a schematic diagram of the support base in a specific embodiment of the present invention.

[0030] Figure 8 This is a schematic diagram of the assembly structure of the second rotating drum and the lifting plate in a specific embodiment of this utility model.

[0031] In the diagram: 1. Protective cover; 2. Magnetic base; 3. Base plate; 4. First rotating drum; 5. Positioning column; 6. Second rotating drum; 7. Pushing seat; 8. First motor; 9. Second motor; 10. Transmission belt; 12. Drive spring two; 13. Support seat; 14. Drive wheel; 15. Third motor; 16. Bracket; 17. Driving pulley; 18. Driven pulley; 19. Drive spring one; 20. Push plate; 21. Steel wire rope; 22. Guide groove two; 23. Guide key; 24. Guide rod two; 25. Guide groove one; 26. Lifting plate; 27. Roller; 28. Guide rod one; 29. ​​Mounting plate two; 30. Horizontal section one; 31. Vertical section one; 32. Vertical section two; 33. Mounting plate one; 34. Horizontal section two. Detailed Implementation

[0032] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0033] like Figures 1 to 2 As shown in the figure, this specific embodiment provides an electric switching device, including a base plate 3, a first driving member, a first rotating drum 4, a second driving member, an opening assembly, and a second rotating drum 6. The base plate 3 is used to connect to a high-voltage switchgear. The first driving member is disposed on the base plate 3 and connected to the first rotating drum 4. The first rotating drum 4 is rotatably disposed on the base plate 3 and extends vertically from the base plate 3. The first rotating drum 4 is used to drive the circuit breaker to move. The second driving member is disposed on the base plate 3 and connected to the second rotating drum 6. The second driving member can drive the second rotating drum 6 to rotate. The second rotating drum 6 is axially movable within the base plate. The second rotating cylinder 6 extends vertically from the base plate 3 and is used to close or open the grounding switch; the cover opening assembly includes a push seat 7, which is movably disposed on the base plate 3, and the second rotating cylinder 6 is located within the cavity of the push seat 7. The push seat 7 can approach and move away from the second rotating cylinder 6. A push plate 20 is provided at the end of the push seat 7 extending out of the base plate 3, and the push plate 20 is used to push the grounding hole slide plate on the high-voltage switchgear; this specific embodiment also includes a control module, and the first driving member, the second driving member and the cover opening assembly are all electrically connected to the control module. The control module can drive the corresponding components to perform actions according to a set program.

[0034] This specific embodiment, through the synergistic action of the first driving component, the second driving component, and the cover opening component, can replace manual operation, resulting in high reliability and low safety risk.

[0035] In this specific embodiment, the first rotating cylinder 4 has a square hole, and the second rotating cylinder 6 has a hexagonal hole.

[0036] like Figure 2 As shown, in this specific embodiment, the first driving component includes a first motor 8, which is mounted on a mounting plate 33 on the base plate 3. The mounting plate 33 has an inverted U-shaped structure, and the first motor 8 is connected to the first rotating drum 4. Specifically, the first motor 8 is connected to a reducer, which is connected to the first rotating drum 4.

[0037] like Figure 2 , Figure 3 , Figure 6 and Figure 8 As shown, in this specific embodiment, the first driving component includes a second motor 9, which is mounted on a mounting plate 29 on the base plate 3. The mounting plate 29 has an inverted U-shaped structure. The second motor 9 is connected to the driving pulley 17 via a corresponding reducer. The driving pulley 17 is connected to the driven pulley 18 via a transmission belt 10. The driven pulley 18 is rotatably mounted on the support seat 13 of the base plate 3 via bearings and a hollow shaft. The second rotating drum 6 passes through the driven pulley 18, the support seat 13, and the base plate 3 sequentially from top to bottom. The second rotating drum 6 can extend out of the base plate 3. To ensure smooth lifting and rotation, a guide key 23 is provided on the circumferential surface of the second rotating drum 6 along its own length direction. The guide key 23 can slide in the keyway of the driven pulley 18. A lifting plate 26 is provided on the second rotating drum 6. The lifting plate 26 is connected to the driving assembly, which is mounted on the base plate 3. In another embodiment, the second motor 9 can also drive the second rotating drum 6 to rotate via gears and a gear ring.

[0038] like Figures 3 to 4As shown, to reduce the investment in drive components such as motors, lower manufacturing costs and failure rates, and achieve lightweight and portability, in this specific embodiment, the drive assembly includes a third motor 15, which is mounted on a bracket 16 on the base plate 3. The third motor 15 is connected to a drive wheel 14 via a corresponding reducer. The drive wheel 14 is rotatably mounted on the base plate 3 via the bracket 16 and bearings. A steel wire rope 21 is wound on the drive wheel 14. Counterclockwise rotation of the drive wheel 14 can release the tension in the steel wire rope 21, while clockwise rotation can tighten the steel wire rope 21. The steel wire rope 21 passes under the roller 27 on the side of the lifting plate 26 and then connects to the push seat. One end of the push seat 7 is connected to the push seat 7, and the connection point between the wire rope 21 and the push seat 7 is lower than the high point of the drive wheel 14. The wire rope 21 can be tilted. With this setting, the lifting plate 26 can be lifted during the winding of the wire rope 21, so that the second drum 6 is lifted. The other end of the push seat 7 is connected to the lifting plate 26 through a drive spring 19. The lifting plate 26 is connected to the base frame through a drive spring 12. Both the drive spring 12 and the drive spring 19 are tilted, and the drive spring 12 and the drive spring 19 are arranged in a V-shape. In this specific embodiment, there are two drive springs 19 symmetrically arranged. In this way, the drive springs 19 The inclined setting allows the push seat 7 to exert vertical and horizontal forces, enabling it to retract into the base plate 3 when not in operation. Although the second drive spring 12 also exerts vertical and horizontal forces on the lifting plate 26, it is limited by the base plate 3 and the driven pulley 18, preventing the second rotating drum 6 from moving horizontally. The driving process is as follows: when the wire rope 21 is taut, the push seat 7 approaches the drive wheel 14, and is lifted by the inclined wire rope 21, with its lower end not extending beyond the base plate 3, effectively avoiding collisions and interference. The lifting plate 26 is also lifted by the wire rope 21, and the second rotating drum 6 does not extend beyond the base plate 3. At this time, the first drive spring 19 and the drive spring... Both of the two springs 12 have significant tensile deformation. When operation is required, the drive wheel 14 is rotated counterclockwise, the wire rope 21 releases its force, and no longer supports the lifting plate 26 or exerts a pulling force on the push seat 7 in the tilting direction. At this time, the elastic potential energy of the drive spring 12 is released, exerting a pulling force on the push seat 7 in the tilting direction (opposite to the pulling force of the wire rope 21), pulling the push seat 7 to move away from the drive wheel 14 or the second rotating drum 6, and also extending outward from the base plate 3. At the same time, the elastic potential energy of the drive spring 19 is released, exerting a pulling force on the lifting plate 26 in the tilting direction (opposite to the pulling force of the wire rope 21), and under the limiting action of the base frame, the lifting plate 26 only extends outward from the base plate 3.

[0039] like Figure 5 and Figure 7As shown, in a preferred embodiment, the push seat 7 is provided with a guide groove 25, and the lifting plate 26 is provided with a guide rod 28. The guide rod 28 extends into the guide groove 25. The guide groove 25 has an L-shaped structure and includes a horizontal section 30 and a vertical section 31. The upper ends of the horizontal section 30 and the vertical section 31 are connected. The opening of the guide groove 25 faces the drive spring 12. The support seat 13 is provided with a guide groove 22. The guide groove 22 includes a horizontal section 34 and a vertical section 32. The lower ends of the horizontal section 34 and the vertical section 32 are connected. The opening of the guide groove 22 faces the drive spring 12. A guide rod 24 is provided on the outside of the push seat 7 and can extend out from the guide groove 22.

[0040] like Figure 1 As shown in this specific embodiment, two positioning posts 5 are also provided on the outer side of the base plate 3. The two positioning posts 5 have different shapes. By setting two positioning posts 5 with different shapes, the left and right sides of the device can be avoided from being installed upside down. In order to facilitate disassembly and assembly, a magnetic base 2 is also included. The magnetic base 2 is set in the mounting groove on the base plate 3. The magnetic base 2 is used to attract the high voltage cabinet. The attraction and separation can be achieved by rotating the knob on the magnetic base 2, which is convenient to use.

[0041] To protect the components on the base plate 3, this specific embodiment is provided with a protective cover 1.

[0042] like Figure 1 and Figure 7 As shown, in this specific embodiment, the push seat 7 includes two upright plates arranged opposite to each other. The ends of the two upright plates extending out of the base plate 3 are connected to push plates 20. The base plate 3 is provided with C-shaped grooves, and the push seat 7 can move and extend within the C-shaped grooves.

[0043] In this specific embodiment, the guide column 1, the lifting plate 26 and the second rotating cylinder 6 are an integral structure.

[0044] The working process of this device is as follows:

[0045] The device is installed on the corresponding high-voltage cabinet by means of positioning column 5 and magnetic base 2. During operation, the control module controls the first motor 8 to rotate the corresponding angular displacement, moving the circuit breaker from the working position to the test position. Then, the third motor 15 is controlled to rotate, driving the push base 7 to move to the set position and push the grounding hole slide open. As the push plate 20 moves away from the lower part of the second rotating drum 6, the second rotating drum 6 extends from the bottom plate 3 and goes deep into the grounding hole. The second motor 9 rotates, driving the second rotating drum 6 to rotate, turning out the corresponding screw, and closing the grounding switch to put it in the local position.

[0046] In this specific embodiment, the maximum extension of the drive spring 19 is 75mm, the free length is 33mm, the wire diameter is 1mm, the initial tension is 14N, and the maximum tension is 40N. The maximum extension of the drive spring 12 is 75mm, the free length is 40mm, the wire diameter is 1mm, the initial tension is 14N, and the maximum tension is 40N.

[0047] As can be seen from the above specific embodiments, this utility model has the following beneficial effects:

[0048] 1. Through the coordinated action of the first driving component, the second driving component, and the cover opening assembly, it can replace manual operation, with high reliability and low safety risk;

[0049] 2. Through the coordinated action of the third motor 15, drive wheel 14, wire rope 21, drive spring 19 and drive spring 22, the tensioning effect on the push seat 7 and the supporting effect on the lifting plate 26 are achieved. When the wire rope 21 is depressurized, the push seat 7 moves horizontally and extends under the action of the inclined drive spring 19 and drive spring 22, and the second rotating drum 6 extends. This arrangement can reduce the number of corresponding motors, reduce manufacturing costs, and improve reliability.

[0050] 3. By setting two positioning posts 5 of different shapes, the installation of this device can be avoided from being reversed from left to right.

[0051] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric switching device comprising a base plate (3) for connection with a high-voltage cabinet, characterized in that, Also includes: The first driving member is disposed on the base plate (3). The first driving member is connected to a first rotating drum (4). The first rotating drum (4) is rotatably disposed on the base plate (3) and extends vertically from the base plate (3). The first rotating drum (4) is used to drive the circuit breaker to move. The second driving member is disposed on the base plate (3). The second driving member is connected to the second rotating drum (6). The second driving member can drive the second rotating drum (6) to rotate. The second rotating drum (6) is axially movable on the base plate (3) and can extend vertically from the base plate (3). The second rotating drum (6) is used to close or open the grounding switch. The opening assembly includes a push seat (7) which is movably disposed on the base plate (3). The second rotating cylinder (6) is located in the cavity of the push seat (7). The push seat (7) can approach and move away from the second rotating cylinder (6). The end of the push seat (7) extending out of the base plate (3) is provided with a push plate (20) which is used to push the grounding hole slide plate on the high voltage cabinet.

2. The electric switching device as described in claim 1, characterized in that, The first driving component includes a first motor (8), which is mounted on a mounting plate (33) on the base plate (3) and is connected to the first rotating drum (4).

3. The electric switching device as described in claim 2, characterized in that, The first driving component includes a second motor (9), which is mounted on a mounting plate (29) on the base plate (3). The second motor (9) is connected to a drive pulley (17), which is connected to a driven pulley (18) via a transmission belt (10). The driven pulley (18) is rotatably mounted on a support seat (13) of the base plate (3). The second rotating drum (6) passes through the driven pulley (18) and the support seat (13). A guide key (23) is provided on the circumferential surface of the second rotating drum (6) along its own length direction. The guide key (23) can slide in the keyway of the driven pulley (18). A lifting plate (26) is provided on the second rotating drum (6), which is connected to a driving assembly. The driving assembly is mounted on the base plate (3).

4. The electric switching device as described in claim 3, characterized in that, The drive assembly includes a third motor (15), which is mounted on the base plate (3). The third motor (15) is connected to a drive wheel (14), which is rotatably mounted on the base plate (3) via a bracket (16). A wire rope (21) is wound around the drive wheel (14). The wire rope (21) passes under the roller (27) on the side of the lifting plate (26) and is connected to one end of the push seat (7). The connection point between the wire rope (21) and the push seat (7) is lower than the high point of the drive wheel (14). The other end of the push seat (7) is connected to the lifting plate (26) via a drive spring (19). The lifting plate (26) is connected to the base frame via a drive spring (12). The drive spring (12) and the drive spring (19) are arranged in a figure-eight shape.

5. The electric switching device as described in claim 4, characterized in that, The push seat (7) is provided with a guide groove (25), and the lifting plate (26) is provided with a guide rod (28). The guide rod (28) extends into the guide groove (25). The guide groove (25) has an L-shaped structure. The guide groove (25) includes a horizontal section (30) and a vertical section (31). The upper end of the horizontal section (30) is connected to the upper end of the vertical section (31). The opening of the guide groove (25) faces the drive spring (12).

6. The electric switching device as described in claim 5, characterized in that, The support base (13) is provided with a guide groove (22), which includes a horizontal section (34) and a vertical section (32). The horizontal section (34) is connected to the lower end of the vertical section (32). The guide groove (22) opens towards the drive spring (12). The push base (7) is provided with a guide rod (24) on its outer side, which can extend out from the guide groove (22).

7. The electric switching device according to any one of claims 1-6, characterized in that, Two positioning posts (5) are also provided on the outer side of the base plate (3).

8. The electric switching device as described in claim 7, characterized in that, The two positioning posts (5) have different shapes.

9. The electric switching device as described in claim 8, characterized in that, It also includes a magnetic base (2), which is disposed on the base plate (3) and is used to attract the high voltage cabinet.

10. The electric switching device as described in claim 8, characterized in that, It also includes a protective cover (1), which is disposed on the base plate (3).

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