Split type isolating switch

Abstract

The utility model relates to the technical field of disconnecting switches, and discloses a split type disconnecting switch, which comprises a base, the top of the base is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a rotating shaft, the outer part of the rotating shaft is fixedly connected with a plurality of U-shaped frames, the inner parts of the U-shaped frames are rotatably connected with connecting rods, and the connecting rods are fixedly connected with the rotating shaft. A rotating rod at the top of the connecting rod is connected with a knife switch, the top of the power connection terminal is fixedly connected with a first wiring board, the top of the first wiring board is fixedly connected with a U-shaped clamp, the top of the power connection terminal is fixedly connected with a second wiring board, and the top end of the second wiring board is fixedly connected with a switch box. According to the utility model, the driving motor is started to rotate the rotating shaft, and the U-shaped frame drives the connecting rod to enable the knife switch to rotate downwards to abut against the switch box through the U-shaped clamp, so that the effect of full-automatic opening and closing through the opening and closing mechanism is realized, the personal safety of workers is guaranteed, and the operation efficiency of opening and closing is improved at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of isolating switches, in particular to a split isolating switch. Background Art

[0002] A split disconnect switch is a device used to cut off power and ensure electrical isolation in a circuit. It is typically used in high-voltage power systems to provide a clear disconnect point during maintenance or overhaul, ensuring personnel safety. A key feature of a split disconnect switch is that its opening and closing mechanisms are separated from the main switch, simplifying operation and improving safety.

[0003] The design of a split-type disconnector generally includes several basic parts, such as the breaking element, supporting insulation, transmission element, base and operating mechanism. These parts work together to ensure that the disconnector can safely and effectively cut off the power when needed.

[0004] In the existing technology, the opening and closing mechanisms of split-type disconnectors are mostly manually opened and closed by people wearing insulating equipment, which poses certain safety hazards. In addition, the operation process is relatively complicated, time-consuming and labor-intensive, which reduces the efficiency of opening and closing operations and reduces the practicality of the device. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a split-type isolating switch, which aims to improve the problem that the opening and closing mechanism of the split-type isolating switch in the existing technology is mostly manually opened and closed by wearing insulating equipment, resulting in low opening and closing operation efficiency and certain safety hazards.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a split-type isolating switch, including a base, the top of the base is fixedly connected to a plurality of power terminals, the top of the base is fixedly connected to a drive motor, the output end of the drive motor is fixedly connected to a rotating shaft, the outside of the rotating shaft is fixedly connected to a plurality of U-shaped frames, the inside of the U-shaped frame is rotatably connected to a connecting rod, the top rotating rod of the connecting rod is connected to a knife switch, the top of the power terminal is fixedly connected to a terminal block 1, the top of the terminal block 1 is fixedly connected to a U-shaped clamp, the top of the power terminal is fixedly connected to a terminal block 2, the top of the terminal block 2 is fixedly connected to a switch box, and a protective mechanism is provided on the top of the knife switch, which is used to protect the knife switch from external weather.

[0007] As a further description of the above technical solution:

[0008] The protective mechanism includes a protective cover, the tops of the terminal block 1 and the terminal block 2 are fixedly connected to a connecting plate, the protective cover is slidably connected between the two connecting plates, the opposite sides of the two connecting plates are fixedly connected to a mounting shell, the interiors of the two mounting shells are fixedly connected to a return spring, the opposite sides of the two return springs are fixedly connected to a limit plate, the interiors of the two limit plates are fixedly connected to a pin rod, the tops of the two mounting shells are fixedly connected to a fixed shell, the interiors of the two fixed shells are slidably connected to a slide, and the opposite sides of the two slides are fixedly connected to a blocking plate.

[0009] As a further description of the above technical solution:

[0010] The top of the base is fixedly connected to two baffles, and the rotating shaft is rotatably connected between the two baffles.

[0011] As a further description of the above technical solution:

[0012] The switch box is internally slidably connected to two limit blocks, a compression spring is fixedly connected between the two limit blocks, and opposite sides of the two limit blocks are rotatably connected to abutment joints, which are rotatably connected to the inside of the switch knife.

[0013] As a further description of the above technical solution:

[0014] One end of the switch is rotatably connected to the outside of the U-shaped clip, and the other end of the switch is slidably connected to the outside of the switch box.

[0015] As a further description of the above technical solution:

[0016] The two limiting plates are both slidably connected to the interiors of the two mounting shells, and the two pin rods both pass through the two ends of the mounting shells.

[0017] As a further description of the above technical solution:

[0018] The bottom end of one of the mounting shells is fixedly connected to the top end of the first wiring board, and the bottom end of the other mounting shell is fixedly connected to the top end of the second wiring board.

[0019] As a further description of the above technical solution:

[0020] The bottom ends of the two blocking plates are in contact with the top ends of the two pin rods, and the opposite sides of the two limiting plates are fixedly connected with handles.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, when performing the closing operation, the drive motor is started to rotate the rotating shaft, and the U-shaped frame drives the connecting rod through the U-shaped clamp to make the knife rotate downward and abut against the switch box, so that the terminal block 1 and the terminal block 2 are closed and energized. When the knife falls, the abutment joint is squeezed into the inside of the switch box to compress the extrusion spring. When the knife falls completely, the extrusion spring rebounds and pushes the abutment joint through the limit block to clamp the knife, thereby achieving the effect of fully automatic opening and closing of the switch through the opening and closing mechanism. There is no need for workers to directly touch the disconnector, which ensures the personal safety of workers, while improving the opening and closing operation efficiency and the practicality of the device.

[0023] 2. In the present invention, when inspecting the knife gate, the handles are used to pull the pin rod to both sides to retract it into the interior of the mounting shell, and the protective cover can be removed by releasing the engagement between the pin rod and the protective cover. When the pin rod retracts, the reset spring is compressed by the limit plate. When the knife gate is inspected and repaired, the protective cover 15 is reinstalled, and the blocking plate is lifted by the slide plate. The reset spring rebounds and the limit plate drives the pin rod to re-engage and fix it with the protective cover, thereby achieving the effect of protecting the knife gate from the influence of external weather through the protective cover. At the same time, the engagement mechanism achieves the effect of quickly installing and removing the protective cover, thereby improving the efficiency of the knife gate inspection and repair work while protecting the knife gate, and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of the split-type disconnect switch proposed in the utility model;

[0025] Figure 2 This is a schematic diagram of the opening and closing mechanism of the split-type disconnector proposed in the present utility model;

[0026] Figure 3 This is a cross-sectional view of the switch box of the split-type disconnect switch proposed in the utility model;

[0027] Figure 4 This is a cross-sectional view of the installation shell of the split-type disconnector proposed in the utility model.

[0028] Legend:

[0029] 1. Base; 2. Power terminal; 3. Baffle; 4. Rotating shaft; 5. U-shaped frame; 6. Connecting rod; 7. Knife switch; 8. U-shaped clamp; 9. Terminal block 1; 10. Switch box; 11. Extrusion spring; 12. Limit block; 13. Abutment; 14. Terminal block 2; 15. Protective cover; 16. Connecting plate; 17. Mounting shell; 18. Reset spring; 19. Limit plate; 20. Pin rod; 21. Fixed shell; 22. Slide plate; 23. Blocking plate; 24. Drive motor; 25. Handle. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 - Figure 2 The utility model provides an embodiment: a split-type disconnector, including a base 1, which serves to support the upper structure. The top of the base 1 is fixedly connected to a plurality of power terminals 2, which serve to connect the circuit. The top of the base 1 is fixedly connected to a drive motor 24, which serves to provide power to drive the rotating shaft 4. The output end of the drive motor 24 is fixedly connected to the rotating shaft 4. The outside of the rotating shaft 4 is fixedly connected to a plurality of U-shaped frames 5, which serve to connect the connecting rod 6 for transmission. The inside of the U-shaped frame 5 is rotatably connected to the connecting rod 6, which serves to connect the knife switch 7 for transmission. The connecting rod The top rotating rod of 6 is connected with a knife switch 7, which plays the role of opening and closing the switch. The top of the power terminal 2 is fixedly connected with a terminal block 9, which serves to connect the terminal block 2 14. The top of the terminal block 9 is fixedly connected with a U-shaped clip 8, which serves to rotate the knife switch 7. The top of the power terminal 2 is fixedly connected with a terminal block 2 14, which serves to connect the terminal block 1 9. The top of the terminal block 2 14 is fixedly connected with a switch box 10, which serves to open and close the knife switch 7. A protective mechanism is provided on the top of the knife switch 7 to protect the knife switch 7 from being affected by external weather.

[0032] Reference Figure 3 - Figure 4, the protective mechanism includes a protective cover 15, the protective cover 15 plays a role in protecting the knife switch 7, the top of the terminal block 9 and the terminal block 2 14 are fixedly connected with a connecting plate 16, the connecting plate 16 plays the role of installing the protective cover 15, the protective cover 15 is slidably connected between the two connecting plates 16, the opposite sides of the two connecting plates 16 are fixedly connected with a mounting shell 17, the mounting shell 17 plays the role of fixing the internal structure, the interior of the two mounting shells 17 are fixedly connected with a reset spring 18, the reset spring 18 plays the role of lifting the elastic force, and the opposite sides of the two reset springs 18 are fixed There is a limit plate 19 fixedly connected, and the limit plate 19 prevents the return spring 18 from falling off. The inside of the two limit plates 19 is fixedly connected with a pin rod 20, and the pin rod 20 plays the role of clamping and fixing the protective cover 15. The top of the two mounting shells 17 is fixedly connected with a fixed shell 21, and the fixed shell 21 plays the role of fixing the internal structure. The inside of the two fixed shells 21 is slidably connected with a slide plate 22, and the slide plate 22 plays the role of connecting the blocking plate 23. The opposite sides of the two slide plates 22 are fixedly connected with a blocking plate 23, and the blocking plate 23 plays the role of blocking the limit plate 19. The top of the base 1 is fixedly connected to two baffles 3, which serve to fix the position of the rotating shaft 4. The rotating shaft 4 is rotatably connected between the two baffles 3. The inside of the switch box 10 is slidably connected to two limit blocks 12, which serve to prevent the extrusion spring 11 from falling off. An extrusion spring 11 is fixedly connected between the two limit blocks 12, which serves to provide elastic force. The opposite sides of the two limit blocks 12 are rotatably connected to abutment heads 13, which serve to engage the switch knife 7. The two abutment heads 13 are rotatably connected to the inner side of the switch knife 7. One end of the knife switch 7 is rotatably connected to the outside of the U-shaped clip 8, and the other end of the knife switch 7 is slidably connected to the outside of the switch box 10. The two limit plates 19 are slidably connected to the inside of the two mounting shells 17. The two pin rods 20 pass through the two ends of the mounting shells 17. The bottom end of one mounting shell 17 is fixedly connected to the top of the terminal block 1 9, and the bottom end of the other mounting shell 17 is fixedly connected to the top of the terminal block 2 14. The bottom ends of the two blocking plates 23 are both in contact with the top ends of the two pin rods 20, and the opposite sides of the two limit plates 19 are fixedly connected with handles 25.

[0033] Working principle: When performing the closing operation, start the drive motor 24 to rotate the rotating shaft 4, and drive the connecting rod 6 through the U-shaped frame 5 through the U-shaped clamp 8 to make the switch knife 7 rotate downward and abut against the switch box 10, so that the terminal block 1 9 and the terminal block 2 14 are closed and energized. When the switch knife 7 falls, it squeezes the abutment joint 13 into the switch box 10 to compress the extrusion spring 11. When the switch knife 7 falls completely, the extrusion spring 11 rebounds and pushes the abutment joint 13 out through the limit block 12 to clamp the switch knife 7.

[0034] When inspecting the knife switch 7, the pin rod 20 is pulled to both sides by the handle 25 to retract it into the interior of the mounting shell 17, and the engagement with the protective cover 15 is released to remove the protective cover 15. When the pin rod 20 retracts, it compresses the return spring 18 through the limit plate 19. When the limit plate 19 moves, the blocking plate 23 falls from the fixed shell 21 to block the limit plate 19 so that it does not rebound. When the knife switch 7 is inspected and repaired, the protective cover 15 is reinstalled, and the blocking plate 23 is lifted by the slide plate 22. The return spring 18 rebounds, and the limit plate 19 drives the pin rod 20 to re-engage and fix it with the protective cover 15.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A split-type isolating switch, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a plurality of power terminals (2), the top of the base (1) is fixedly connected to a drive motor (24), the output end of the drive motor (24) is fixedly connected to a rotating shaft (4), the outside of the rotating shaft (4) is fixedly connected to a plurality of U-shaped frames (5), the inside of the U-shaped frame (5) is rotatably connected to a connecting rod (6), the top rotating rod of the connecting rod (6) is connected to a knife switch (7), the top of the power terminal (2) is fixedly connected to a wiring board (9), the top of the wiring board (9) is fixedly connected to a U-shaped clamp (8), the top of the power terminal (2) is fixedly connected to a wiring board (14), the top of the wiring board (14) is fixedly connected to a switch box (10), and the top of the knife switch (7) is provided with a protective mechanism, the protective mechanism is used to protect the knife switch (7) from being affected by external weather.

2. The split-type disconnector according to claim 1, characterized in that: The protective mechanism includes a protective cover (15), the tops of the terminal block 1 (9) and the terminal block 2 (14) are fixedly connected with a connecting plate (16), the protective cover (15) is slidably connected between the two connecting plates (16), the opposite sides of the two connecting plates (16) are fixedly connected with a mounting shell (17), the interiors of the two mounting shells (17) are fixedly connected with a return spring (18), the opposite sides of the two return springs (18) are fixedly connected with a limiting plate (19), the interiors of the two limiting plates (19) are fixedly connected with a pin rod (20), the tops of the two mounting shells (17) are fixedly connected with a fixed shell (21), the interiors of the two fixed shells (21) are slidably connected with a slide plate (22), and the opposite sides of the two slide plates (22) are fixedly connected with a blocking plate (23).

3. The split-type disconnector according to claim 1, characterized in that: Two baffles (3) are fixedly connected to the top of the base (1), and the rotating shaft (4) is rotatably connected between the two baffles (3).

4. The split-type disconnector according to claim 1, characterized in that: Two limit blocks (12) are slidably connected inside the switch box (10), a compression spring (11) is fixedly connected between the two limit blocks (12), and opposite sides of the two limit blocks (12) are rotatably connected to abutment joints (13), and the two abutment joints (13) are rotatably connected to the inside of the knife switch (7).

5. The split-type disconnector according to claim 1, characterized in that: One end of the knife switch (7) is rotatably connected to the outside of the U-shaped clamp (8), and the other end of the knife switch (7) is slidably connected to the outside of the switch box (10).

6. The split-type disconnector according to claim 2, characterized in that: The two limiting plates (19) are both slidably connected to the interior of the two mounting shells (17), and the two pin rods (20) both pass through the two ends of the mounting shells (17).

7. The split-type disconnector according to claim 2, characterized in that: The bottom end of one of the mounting shells (17) is fixedly connected to the top end of the first terminal block (9), and the bottom end of the other mounting shell (17) is fixedly connected to the top end of the second terminal block (14).

8. The split-type disconnector according to claim 2, characterized in that: The bottom ends of the two blocking plates (23) are in contact with the top ends of the two pin rods (20), and the opposite sides of the two limiting plates (19) are fixedly connected with handles (25).

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